UA76395C2 - Nipple - Google Patents

Abstract

By a universal valve connector for inflation valves of vehicle tyres (Sclaverand, Dunlop-Woods, or Schrader), whose connector consists of a connector housing (368), which partly is connected to a pressure source, preferably a hand or foot pump, and which partly has a coupling hole (5) with a diameter corresponding to the diameter of the valve, which is to be connected, where the coupling hole is equipped with a securing means for securing on the valve, plus a scaling means against valves of different sizes. This is achieved by the sealing means (366) being mounted coaxially in the connector housing (368) and being established on at least two parallel, separate levels, having the centre line (4) of the connector housing (368), which is coaxial to the centre line of the valve, as its normal, where the minor diameters of the scaling means approximately correspond to the major diameter of the current valve dimensions, on which the connector is mounted when used, that the sealing means (366), closest to the opening (8) of the coupling hole (5) in the connector housing (368) has the biggest minor diameter, while the sealing means (366) farthest from the opening (8) of the coupling hole in the connector housing (368) has the smallest minor diameter, and diameters between the extremes are lying corresponding separate distances between these extremes. The valve connector has the possibility of automatically adjust itself to the valve in question and if needed to activate the central core of a Schrader valve. Also, it is possible to use the connector with existing pumps.

Description

Description of the invention

This invention relates to nipples for pumping air through various valves of car tires in accordance with 2 to the restrictive part of item 1 of the claims.

For greater clarity of presentation, some standards and patents will be cited. (The IBO standard Mo10475; 1992 (E)) describes the threading for valves through which car tires are inflated. The most widely used threads are designated: 5M2 (IM; Ma 5.2) with a nominal diameter of 5.2 mm and a pitch of 1.058 mm, and 8M1 (IM; Ma 8) with a nominal diameter of 7.7 mm and a pitch of 0.794 mm. These types of threads use 70 in valves of the types Oypior-U/osdz, Zsiamegapa or 5spgadeg. The latter type of valve is often used on public transport vehicles, the spring-loaded rod in the valve body having to be pushed down in preparation for the passage of air when the tire is inflated. For this, the nipple must be equipped with such means that could serve this purpose. In addition, suitable means, such as a non-return valve or similar device, must be used to ensure that the outflow of air 79 is shut off when the valve stem is engaged, the Zsiamegapi system valve, as well as the system valve

Bipior-UM/oodz has a certain property, which consists in the fact that the valve stem opens by itself under air pressure. The air pressure required to open the valve of the Zsiamegapa system is up to 16 bar, and the valve is mainly used in high-pressure tires, in which the air pressure reaches 16 bar. The pressure that opens the valve of the Yupior-UUood5z system is about 4 bars, which makes it easier to open.

It is known from engineering mechanics that when screwing a nut onto a bolt, the length of the thread in the axial direction

Tu for the nut M is equal to or greater than 0.8 of the outer diameter of the corresponding bolt, i.e. Tu»O.8OMk. The rule of thumb is used for highly loaded structures, when the nut is tightened with a wrench.

Well-known nipples (for example, ZB-8B-977, 139) can only be attached to the valves of the 25 Vypior-Uooaiz system and/or to the valves of the Zsiamegapa system, or to the valves of the Zspgadeg system. Gee)

The well-known nipple for the valve of the Zspgadeg system refers to the type according to which the rubber cylinder is tightly pressed to the rod with the help of a lever that compresses the rubber cylinder in the axial direction. Therefore, the rubber cylinder is pressed against the rod in the radial direction. Taking into account the different diameters of the valve, it is necessary that the auxiliary part (nut b) is previously screwed on/or that 30 is unscrewed from the thread of the valve to reduce or increase the internal diameter in order to provide Ge») to create a connection from the nipple to other diameters of the valve. Loose parts can be lost or can be loosened during use if the pump hose is turned, in which case the connection is no longer sealed. at

The disadvantage of this type of nipple is that the user must exert great effort when using the lever. (Se)

It is necessary to connect and disconnect the valve with two hands.

From the EU patent ЕВ-15 99 304) a universal nipple for connecting the valve, which can be screwed to all types of valves, is provided. The thread (4), which corresponds to the thread of type 8M1, keeps the sleeve (26) in the required position. The sleeve (26) has an internal thread (30) that corresponds to the 5M2 type thread for connecting valves of the Zsiamegapa or Yupior-U/osdz system. The central valve stem of the Zspgadeg system is removed mechanically by means of a stationary stud marked with position (12). The disadvantages of this type of nipple are that the З7Z bushing (26) with a 5М2 thread type must be removed before connecting to the Zspgadeg system valve and also that c that the bushing (26) must be reattached to the Zsiamegapa or Jupior-U/osaz system valves. Also in this case loose parts are used. They can get lost and their fastening can loosen during use if the pump hose is turned, resulting in a leaky joint.

According to patent OE-B 38 19 771) a universal nipple on a hand pump with two connecting holes -I 45 is provided, one of which is intended for connecting the valves of the Zsiamegapa and Oipior-M/osavz systems, and the second - for the valve of the Zspgadeg system, the central rod of which open mechanically. To the disadvantages of this method

Ge") connection refers, firstly, to the impossibility of a tight connection to the valve and, secondly, that it can be used only in a certain position, in which the connecting hole is turned almost into a protruding position at the top, and finally, that that the user must determine which of the two ports to use with (Ce) 50 a particular valve. sl Thus, the known solutions did not pay attention to the fact that, When it is important, the user could use the connecting device without studying the type of valve, the user manual and deciding which type of valve to use and then turning the wheel with the valve in correct, upward position. (In the patent OB-A-2 025 067) a nipple is provided, to which pipes of different diameters can be connected by matching the pipe diameters. This known method is designed to ensure tight

GF) connection without the use of threads, and the axial displacement of each seal is not decisive. This type of connection is used in devices for filling containers. The gaskets used to seal the adapter are mostly mushroom-shaped, with the "leg" of the "mushroom" located between the trapezoidal walls of the adapter, which leaves a semicircular seal for pressing against the nozzles without threads. When using a pipe with a thread in connection with such a seal, the latter is destroyed after several such connections.

Another well-known universal valve, which apparently did not make it into the patent literature, is of the same type as the one above (described in EB-15 99 304). This rubber cylinder consists of two side-by-side parts of different diameters and lengths mounted on 5M2 and 8M1 threads, respectively. Along the axis with 62 a small offset from the axial line of the holes, means can be installed that can open the central valve stem of the ZsPppgadeg system. The disadvantage of this method of connection is partly that connecting and disconnecting the inlet valve must be done with two hands, and partly that the rubber cylinder must be removed from the housing and turned upside down to perform the connection to valves with different types of threads, so that the point of articulation for connecting the valve is always located close to the connecting hole. In addition, the rod that mechanically opens the valve of the Zspgadeg system must be returned when performing the above-mentioned operation. This leads to difficulties for users, because both means must be positioned correctly in relation to each other in order to be able to attach the nipple to the valve; four combinations of positions are possible, from which it is worth choosing, which can be performed correctly only 7/0 if you have the operating instructions at hand. In addition, the above-mentioned means may be lost, their fastening may be weakened during such an operation.

From the patent MUO-A-92/22448) it is known to use sealing means that are placed at the same level, and (from the patent ЕВ-В-977 139) - a nipple that is turned on by a cam lever. Common to both previously known solutions is that they can only be used together with the valve of the 5sNgadeg system and that neither the valve of the 7/5 Bipior-Mooadv system nor the valve of the Zsiamegapa system can be connected with a nipple of this type, because the sealing means have only one connection diameter, for example, for the valve of the 5spgadeg system.

Inflating a tire is a problem for many people, especially if the tires have different valve types and if only one pump can be used. This problem affects most families. The purpose of the present invention is to create a nipple that can be connected to all currently available types of valves, easy to use, economical, and capable of automatic self-adjustment to the corresponding valve. It should also be possible to use the nipple with existing pumps.

According to the present invention, this goal is achieved thanks to the means described in the distinguishing part of item 1 of the claims.

By means of a nipple for inflating valves of automobile tires, which consists of a housing, c connected to a source of compressed air, preferably a hand or foot pump with a connecting hole with a diameter corresponding to the diameter of the valve to which it is connected, and the connecting hole equipped with locking means for fixing on the valve and sealing means for valves of different sizes, this invention is achieved by the fact that the sealing means are located coaxially in the housing behind the connecting channel and are installed in at least two parallel discrete levels, and the axial line of the housing is perpendicular to them, and the inner diameter of the sealing means corresponds approximately to the outer diameter of the through-hole of the valve to which the nipple is attached when it is used, and those sealing means which are located closest to the opening of the connecting channel in the body have the largest inner diameter, while they are the sealing means , the furthest from the lake ru of the connecting channel in the body, have the smallest internal diameter, and the diameters of the holes between the extreme holes are proportional to the discrete distances between these extreme holes. The point of articulation on the valve to be connected is located against the sealing surface on the sealing means in the connection channel of the corresponding valve. The nipple has only one connection channel. Therefore, its use is simple and possible even without an operating manual, and free nipples are completely superfluous. Thus, the connection can always be performed in just one operation.

In a suitable embodiment of the present invention, it is proposed that the fixing means be made in the form of a "rotating sleeve, installed on the body, equipped with a thread in the connecting channel, which communicates with the corresponding valve and which is sealed by sealing means relative to the nipple body, which is the most distant from the connecting channel in the nipple housing. The nipple can be located on a valve with a sealed;" a connection that does not loosen when the attached hose is turned. In addition, installation is performed quickly without significant effort. Connecting and disconnecting the nipple can be done with only one hand.

To reduce the wear of the sealing surface in the nipple body, as well as to reduce the force with which the rotary sleeve must be turned and, in addition, must ensure a reliable sealing of the articulation of valves with a thread of type 5M2. Another option for a suitable implementation suggests that the internal

Me, the thread was equipped with a bushing with a 5M2 type thread, and the bushing is sunk and (slightly) in the axial oo direction is able to slide in a conical hole in the rotating coupling bushing and is coupled to ensure freedom from rotation with the coupling bushing by means of a group of grooves distributed along the periphery of the sleeve and se) which are engaged with the corresponding grooves in the connecting sleeve, and the fact that the sealing means c rest on the stepped grooves. This ensures that frictional forces do not occur between the seal and the union bushing during the bulk of its tightening and loosening, with the union bushing pulling the nipple body and its seal against the valve when tightening. Tightening occurs relative to the inner diameter of the valve thread and is stabilized as a result of the reduction of the radius of the inner part of the stuffing box seal.

F) In order to be able to use a nipple on the Zsiamegapa system valve that is not standardized, that is, a part of the thread is removed so as to form two parallel compartments on each side of the Zsiamegapa system valve, a further improvement of the inner sleeve is proposed, which consists in that the inner sleeve fits into the cut groove in the valve body. Such a valve of the Zsiamegapa system cannot be tightened relative to the sealing means, and the compressed air will escape through the openings between the compartments. By moving into the cut groove, the bushing will be drawn to it when installing the nipple on the valve.

As for the possibility of connecting and disconnecting with only one hand, for this the nipple is equipped with b5 Temporary thread, that is, made by knurling, for example, a rubber cylinder according to the existing thread of the valve, on which the fixing means and sealing means in a known way contain a sleeve made of a deformable material , located in a body, preferably of a rubber-type material, which is shaped to resemble the letter "H", and this piston is located in close proximity to the valve and to a rubber sleeve having two projections to produce axial compression and release of the rubber sleeve, and has a lever for actuating the piston, wherein the axis of the lever is perpendicular to and intersects the axis line, and the lever for actuating the piston is rotated from a position forming an angle with the axis line to a position almost perpendicular to the axis line where the locking means of the lever act together with the corresponding fixing means of the body, and the fixing means of the lever, for example, are made in the form of a rocker arm. In a special, advantageous embodiment, a reaction lever is introduced to absorb the reaction forces resulting from the movement of the lever between two positions. These measures ensure reliable fixation and ease of operation.

As for the design of the nipple, it can be installed with only one hand when the lever is lowered to its fixed position by simply pressing the lever and the reaction lever parallel to the connecting hose on the body of the nipple. With this action, the piston is pressed against the rubber sleeve, which is tightly pressed in the radial direction to the corresponding valve.

In the improved version of the nipple, the rubber sleeve is equipped with at least one external one

An M-shaped groove on the periphery perpendicular to the axis line near the parts pressed against the valve threads. It is pre-set to transmit the greatest radial forces acting on the thread through such grooves in the rubber sleeve exactly at the place where the grooves are located, and the nipple user will use a soft operating lever. In order to achieve this goal in the future and to fix the nipple on the valve even at high pressure, it is proposed to preferably place rings of toroidal shape in the grooves, and in this way to transmit the resulting radial forces through the rings.

A version with a lever has been created, which ensures connection and disconnection without the influence of a bending moment, because the valve cannot bear any bending load that occurs during connection and disconnection. It is possible to connect it to almost all types of valves, because this type of nipple can open the central rod of such a valve as the valve of the Zspgadeg system, which opens at an air pressure of 5-6 bar. The air pressure in the pump hose has the same value as when a high-pressure tire is inflated i) equipped with a bZsiamegapa system valve. This is best achieved by using a high-pressure hand or foot motorcycle pump. There are types of valve stems that cannot be opened under the influence of air pressure generated by a common motorcycle pump (for example, up to 10 bar max). Joining can be done simply and conveniently in two ways. Or replace the last-mentioned valve stem with the first mentioned one, and the variants of execution made in accordance with the valid invention, without the rod Me) be used as a nipple, or the valve stem, made in accordance with the specified variant of the execution of the valid invention, can be opened by a rod inserted in the extension and coaxed with the axial line of the nipple body, which is moved in the axial direction from the most distant position from the valve (see ise)

Fig. AA) to actuate the head of the central valve stem (see Fig. 4Х). When using this variant, the required air pressure can be significantly lower when it is necessary to inflate a tire with a valve of the Zspgadeg system, because the air pressure is not used to open the valve. Pumping can thus be done with a regular motorcycle pump.

As a means of automatically moving the control rod in the housing from the passive position to the "

Including, the control rod is made in the form of a piston equipped with appropriate fixing means and /- with a rod that can slide in a cylindrical body and which, without any physical load, is kept in a sealed longitudinal position relative to the cylinder walls so that the sliding of the piston after the connection of the nipple with occurs under the action of compressed air supplied from a pressure source, and so that the piston in the most distant position from the valve of the wheel (tire) ensures tightness less than 10095, relative to the walls of the cylinder. -And with a nipple made in accordance with clause 1 of the claim, equipped with such an automatic light control rod, it is possible to connect a nipple equipped with a valve to the compressor hose, which may be accessible

Me. for car owners, for example, it can be purchased at a motorcycle store, etc. Thus, there is no need to press the nipple against the valve, because the user creates the pressure necessary to ensure a 5o hermetic connection. When using such a nipple, it is possible to inflate the tire without the need for the user to identify the type of valve and the way it functions. Ease of use is also significantly increased and it is easier for the user to inflate the tire to the correct pressure, which generally facilitates driving the car and reduces tire wear. At the same time, a check valve function is added when using system valves

Zespgadeg, which consists in the fact that the valve only opens the valve stem of the valves of the Zspgadeg system, when

Sufficient pressure is created by the air supplied from the compressed air source, so that air cannot escape from the tire during inflation. (F) In a suitable embodiment of a nipple made in accordance with the present invention, it is proposed that the piston be equipped with a central axially sliding valve which is resiliently pressed in the closed position against the upper plane of the piston. This provides a well-defined opening zone, which is not affected by friction in the guide pistons, and an increase in the opening size of the valve stem reliably guarantees the passage of compressed air from the source of compressed air.

As an example, an axially sliding center valve on a piston may be suitably actuated in such a manner that the piston valve is loaded by a valve arm moving eccentrically through the valve, and in which a spring between the piston and its valve holds the valve closed , 65 When the piston should not affect the valve stem in the wheel (tire) valve.

Alternatively, the piston valve may be loaded with a valve stem that moves concentrically axially through the piston, where it is held by a spring in a position remote from the piston. In this way, it became possible to create a piston that functions reliably within the limits limited by the ISO standard, because the piston with the valve stem automatically adjusts its length within the limits

The valve in question.

The latest versions ensure reliable operation of the valve lever, because it is closed and only exposed to forces acting in the axial direction. In addition, the bridge on the valve of the Zspgadeg system can be used to turn on the piston valve. Next, the reaction forces from the piston are transferred to the air, and not to the mechanical structures. 70 The valve of the Zspgadeg system has the largest large diameter of the external thread (thread according to IZO 4570/3 8M1, IBO 10475; 1992-12M1, respectively) and the connection point is located closest to the opening of the connecting channel. The valve stems of the Yupior-UUood5 system valves and the Zsiamegapia system valves have the same type of thread, in which the largest diameter of the external thread (thread according to IZO 4570/2 52) is smaller, the smaller the diameter of the internal thread of type 8M1. Thus, it became possible for the valve stems /5 of the valves of the Yupior-UM/oodz system and the valves of the Zsiamegapa system to pass through both connecting points: threads of type 8M1 and 12M1. Therefore, the connecting point of the connection of the 5M2 thread is the furthest away from the opening of the connecting channel. The threads of the type 5M2 valve stem of Yupior-UUosaz system valves (both types standardized by OIM standards and the type commonly called "ball valve") significantly protrude above the type 8M1 nut that holds the valve stem to the valve, and the largest diameter of which less than the largest diameter of the 12M1 type internal thread in the sleeve. Thus, there is enough space to accommodate at least two types of threads, each of which is used in conjunction with an appropriate O-ring. The same applies to connections produced with pressing, according to the present invention, where the nipple is pressed to form a temporary thread. A nut with a thread of type 8М1 cannot pass through the connection point of the valve of the Zspgadeg system. This happens because the largest diameter of the mentioned nut is larger than the diameter of the largest hole in the rubber cylinder (the largest diameter of the external thread of type 8M1). The beginning of the connection point of the 5M2 thread is located at some distance i) from the opening of the connecting channel. Because the load on the connection is small, there is no need to use the full length of the internal thread, which is calculated according to the usual rules by the formula: 0.8 X the size of the external connecting thread. The rule is based on the calculations of mechanical structures that are heavily loaded and in which tightening the nut is the key. In this way, it is possible for the 5M2 thread joint to be located behind the 8M1 thread joint. The invention can be implemented by Me in a number of variants described in the dependent clauses of the claims. with

The invention is explained in detail below with the help of drawings, which show: in Fig. 1 - the first version of the universal nipple connected to the hose (high-pressure) ise)

The head of the pump, in which the nipple is screwed to the valve and the valve of the 5spgadeg system can be opened under the action of air pressure, in Fig. 2A - the nipple corresponding to the one shown in Fig. 1, in the second version of the execution, in which the sleeve with a thread type 5M2 and the seal for the valve of the Zspgadeg system can slide parallel to the axis line, in Fig. 2B - details of the nipple made according to Fig. 2A, (cross section along AA), "in Fig. 3 - nipple corresponding to the one shown in Fig. 2, in the third version of the execution, it is created for use with the valve of the Zsiamegapa system, which does not meet the I5O standard. in Fig. AA, B - a universal nipple corresponding to the one shown in Fig. 1, in the fourth embodiment, which is screwed to the valve, and the valve of the Zspgadeg system can be opened mechanically with the help of a rod, and the mechanism for moving the rod is equipped with a thread and the rod is shown in the upper and lower positions, respectively, -I in Fig. 5BA, B - a universal nipple corresponding to the one shown in Fig. 4A, 4B8 in the fifth embodiment, in which the rod movement mechanism is equipped with a thread with a large pitch and in which

Me, the rod is shown in the upper and lower position, respectively, 2) in Fig. 6b - details of the nipple made, respectively, in Fig. 5A (cross section X-X) and in Fig. 5B8 (cross section Y-Y), in Fig. 7 - the cylinder of the supplying nipple, made in accordance with Fig. 5A, 58 (section 2-2), and in Fig. 8 - the nipple corresponding to the one shown in Fig. 1, in the sixth embodiment, which is screwed to c valve, and the valve of the Zspgadeg system can be opened automatically by means of a rod, which is a piston, and the piston is shown in its peripheral position, where compressed air can pass through the piston, which is also a control valve, in Fig. 9 - a nipple corresponding to that shown in Fig. 8, in the seventh embodiment, in which the piston is provided with a valve loaded with an eccentrically located lever,

F) in Fig. 10 - another nipple in the eighth embodiment, in which the piston is provided with a valve loaded with a concentrically located valve lever, and the piston is shown in the position of heading towards the valve stem of the Zspgadeg system, and the valve on top of the piston is closed, in Fig. 11 - a universal nipple in the ninth variant of execution, connected to the hose of a (high-pressure) foot pump, in which the nipple is pressed onto the valve and the valve of the ZsNgadeg system can be opened under the action of air pressure, in Fig. 12A, B - a universal nipple in the tenth variant of execution , which is a further improved version of the embodiment presented in Fig. 5, and which is attached to the hose of the foot pump, and is pressed onto the valve, b5 and the valve of the Zspgadeg system can be opened mechanically by means of a movable rod shown in the upper and lower positions, respectively,

in Fig. 12C - a cross-section along A-A in Fig. 12A and, accordingly, a cross-section along B-B in Fig. 128, and non-essential details are not shown, in Fig. 13 - a universal nipple in a special version, created for use in car tires with narrow holes for the nipple, in which the nipple is pressed onto the valve, and the valve of the system

Zepgadeg is opened with the help of an automatically moving rod, in Fig. 14A - a universal nipple in the twelfth version of the execution, which is pressed onto the valve using a rubber sleeve with grooves and toroidal rings in each groove and the valve of the system

The valve opens with the help of an automatically moving rod, made in the form of a piston and shown in the 7/0 lower position, in Fig. 15 - a universal nipple, in the thirteenth version, pressed onto the valve using a rubber sleeve with grooves and toroidal rings in each groove , and the nipple is pressed onto the valve and the valve of the 5spgadeg system is opened by means of an automatically moving rod, made in the form of a piston with a control valve and shown in the lower position.

In Fig. 1, the hose 1 of the pump is fixed with the help of a ring clamp 2 on the housing 3. The housing Z is bent at an angle, for example, 309-609 with respect to the axis line 4 of the connecting channel 5. The bushing b in the presented version of the execution is equipped with two types of threads according to the IZO, thread 7 of the 5M2 type, starting from the cross section farthest from the opening 8 of the connecting channel 5, and thread 9 of the 8M1 type, starting near the above-mentioned opening. When connecting (disconnecting), the sleeve b is turned around and held with the help of clamping hooks 10 in the grooves 11 of the body Z. Seals 12 and 13 are pressed against the threads of types 5M2 and 8M1.

The seal 12 also seals the connection 14 between the body C and the sleeve b when the nipple is used on the valve of the Zspgadeg system. The lower side of the sleeve 6 is equipped with a conical hole 15.

Fig. 2A shows the second embodiment. The housing 190 is equipped with a connecting sleeve 191, which can be freely and without friction turned relative to the housing 190 due to the presence of a small space "B" between

Sealing means 192 and sleeve 193 together with sleeve 191 of the nipple. The seal 194 for the valve of the Zspgadeg system is placed freely in the sleeve 191 of the nipple on the thread 195 of the 8M1 type. The 5M2 o-thread bushing 193 is not fixed, but is axially movable in a conical hole 202 in the nipple bushing 191. Both can be moved parallel to the valve axis. The sealing means 200 are pressed into a stepped groove 201 in the housing 190 with a protruding part 192, which also seals the connection between the housing 190 and the nipple bushing 191. The bushing 193 can be turned together with the nipple bushing 191 because it is equipped with at least two grooves 196 that are connected with corresponding grooves 197 (see Fig. 2B) in the sleeve 191 of the nipple. When the valves of the Yupior-UUosaz or Zsiamegapa system are connected, the sealing means 200 are tightened on the smaller diameter of the valve thread. The valve rests against the surface 198 so that the valve nut of the Yupior-U/osaz system does not tighten itself on the lower side 199 of the thread type 8M1. From above, the sealing means 200 have a radially stepped hole of reduced diameter. uh-

Figure 3 shows a nipple designed for use with a Zsiamegapa system valve that does not meet the IBZO standard. In such a valve, part of the thread is removed to form two parallel sections on each side of the valve of the Zsiamegapa system. Such a valve of the Zsiamegapa system cannot be pressed against the sealing means 330 of the nipple mentioned above, because the compressed air will tend to escape through the grooves between the thread sections. With the help of a detachable locking device 339, the sleeve 340 is pressed against the body 341, which is inserted into the external drilling on the body 341, located perpendicular to the axis of the nipple. and Internal sealing means 332 are located between the connecting bushing 331 and the body 341 with respect to the bushing 340. "" The single bushing 331 seals the lower groove in the housing 341 with the help of another sealing means 333, which is placed in the lower groove. When installing the nipple on the valve, the connecting sleeve enters the lower groove in the valve body and, if the valve of the Zsiamegapa system cannot be pressed against the sealing means 330, then air will pass into the space between the connecting sleeve 331 and the sealing means 333 located behind it.

Fo In FigAA and 48 is provided the nipple shown in Fig. 17, in which the rod 161 is mounted in the button 162,

Ge) held in the groove 160 of the body 164 with the help of grippers 163. The button 162 is equipped with an internal 5r thread 165 with a large step. When the button 162 is rotated around the axis, the rod 161 moves along the axis 4 of the hole 8 of the connecting channel 5, because the rod 161 is equipped with ribs 166 that move 4 in the grooves 167 of the channel 5.

The seal is made with the help of one gland seal 168. The button 162 is made, for example, of an elastic material. The rod 161 is shown in Fig. 4A in the upper position 18, and in Fig. 48 - in the lower position 32.

In Fig. 5A - 7, the hose 1 of the pump is connected to the housing 35 by means of a clamping ring 2. The angle "a" between the axis iF) 36 of the clamping ring 2 and the axis 4 of the opening 8 of the connecting channel 5 can be 309-602. Bushing 6 with an internal thread and sealing are identical to those shown in Fig.1. The rod 40 can move along the axis 4 of the connecting channel 5 from position 18 to position 32, when the button 43 is turned from position 44 (see Fig. 5A) to position 45 (see 5B) and vice versa. On the lower side, the button 43 is equipped with a radial internal rotating protrusion 46, which surrounds the corresponding tide 47, and it is fixed against rotation in the position 44 and 45, when the button 45 is captured by the tide 47 (see section X-X in Fig.b). Cylinder 48 is directly connected to button 43.

In the cylinder 48, there are two grooves 49, 50, of which one groove 49 is open on the opposite side from the button 43. Two round protrusions 51, 52 of the rod 40 move, being located in diametrically opposite sides, 65 along the grooves 49, 50. From both ends of the groove 49, 50 with axial lines 53, 54, which are parallel to axis 4, equipped with grooves 55, 56, 57, 58, located on diametrically opposite sides from each other, and axial lines 59, 60, 61, 62 are located perpendicular to the axial lines 53, 54. The ends of the grooves 55, 56, 57, 58 have the shape of semicircles, the centers of which 63, 64, 65, 66 are located at a slightly greater distance from the nearest side of the grooves 49, 50 than the radius of the protrusions 51, 52. Moreover, the protrusions 51, 52 are moved in the internal thread 67 from the connecting channel 5. The step 67 of the thread is so large that the rotary button 43 can only be turned approximately 2402 from the position 44 to the position 45 or in the opposite direction. When the button 43 is turned, the grooves 49, 50, 55, 56, 57, 58 advance the projections 51, 52 in the thread 67. The rotating head 43 is fixed on the body 35 with the help of clamps 68, which are moved behind the internal projection 69 in the button.

Hermeticity of the structure described above is ensured by means of a seal 70 located on the 7/0 upper surface of the housing 35. On the sides of the housing 35 in the positions marked by positions 44 and 45, there are symbols 71, 72, 73 depicting the types of valves that can be attached .

Figure 8 shows a nipple made in accordance with the present invention in partial longitudinal section, where the piston 304 is shown in its peripheral position, in which it presses the valve stem of the 5spgadeg system so that the latter is fully open. In this way, air from the source of compressed air 75 can pass through the cylinder 303 and, for example, through the central blind bore 309 located along the axis in the piston 304 and in the piston rod 312, which ends in the piston rod 312 near the bore 310 located in the radial direction , which ends on the other side of the channel 308 of the piston, sealed, for example, by means of a ring 311 of circular cross-section. This arrangement of holes provides maximum pressure on the piston to open the valve stem of the Zspgaadeg system, after which a channel is formed for the supply of compressed air,

When the valve stem of the Zspgadeg system is almost completely open. The piston 304 is sealed by another sealing ring 305 of a circular cross-section relative to the walls of the cylinder 303, which are located at a certain distance that corresponds at least to the stroke of the valve stem of the Zspgadeg system over the peripheral position of the piston, and which is equipped with means 307 designed to reduce the degree of sealing. This device is introduced in order to ensure the possibility of passing air around the piston 304 when it is several s

Displaces when connecting a nipple of a different type than the valves of the Zsngadeg system. In this position, the piston rod 312 is also displaced to such a large distance from the peripheral position that the blind bore 310 o is located above the sealed part of the cylinder wall 303. The peripheral part of the piston rod 312 is constantly guided by the control channel 308 of the piston, and in order to direct air into the valve, in question, the piston rod 312 here is equipped with longitudinal air channels 306 that allow air

To pass the piston rod 312 and the sealed control channel 308 with sealing means 311.

Fig. 9 shows another version of the nipple, made in accordance with the present invention, in the b" partial section, in which the piston 304 is equipped with a valve 317, which is controlled by an eccentric valve lever 315. Here, the piston valve 317 is located in the upper part of the piston 304, which has a central rod 318 from the lower side, which when passing to the valve has a partially radially directed o

35 blind channel 313 and partially sealing ring 314 of a circular cross-section, which provides sealing between the valve 317 and the piston 304. The radially located channel 313 ends in the central, axially located blind channel 309, which passes through the central rod 318 from the blind channel 313 from the valve 317. A tension spring 316 is mounted near the peripheral end of the central rod 318 near the peripheral end of the rod 312, which extends to close the valve 317 when it is not subjected to other forces. "

When the piston 304 moves along the cylinder 303, the piston 304 and the valve 317 are associated. The valve 317 can still be opened when the piston approaches its peripheral position, where the valve lever 315 is stopped by the abutment surface in the cylinder 303. It stops the joint movement of the piston 304 and the valve 317 and "" then, first the seal 314, and then through for a short period of time, blind passage 313 is exposed to the lever above piston 304. This allows compressed air to escape above piston 304 through blind passages 313 and 309. The compressed air is then directed to the valve stem of the Zspgadetg system, which is now fully open. - and Fig. 10 shows another version of the nipple, made in accordance with the present invention, in a partial section, in which the piston 304 is equipped with a valve 317, loaded with a concentric valve

Fo lever, which here is made in the form of a central rod. The valve itself 317 on the piston 304 is made in the same way as

Ge) in the variant of Fig. 9, and therefore is not described further. The piston 304 is shown in the state directed to the valve stem 5r of the Zsngadeg system, where the valve 317 at the top of the piston 304 is closed. The valve is open when the central rod 318 o presses the valve stem of the Zspgadeg system, and it is open simultaneously with the opening of the valve itself 4 317. At the same time, the spring 316" is also compressed to such an extent that the central rod 318 can always adjust itself to various limits relative to the rod valve of the Zspgadeg system.

In Fig. 11, the hose 1 of the pump is connected to the piston 76, which moves in the housing 110 with the help of the clamping ring 2. The elastic housing 78 with the connecting surfaces 79 (for the valves of the Yupior-UUood3z system and

Zsiameiapa ) and 80 (for the valve of the 5spgadeg system) is compressed by the movable piston 76 with the help of the lever 102, which iF) is pressed downwards from the upper position 82 to the position 83, where it is parallel to the axis line 36 of the clamping ring 2. The lever 102 turns relative to the axis 85, which is installed in the body 110 and whose axial line is perpendicular to the plane of the lever, and which crosses the axial line 4 of the opening 8 of the connecting channel 5 axis. because the Uniform surface 79 is located at a distance ta" from the opening 8 of the connecting channel 5, while the surface 80 is located next to it. The zone on the elastic means 78 is adjacent to the piston 76. The hole 75 in the piston for air supply has a diameter that is slightly smaller than the largest diameter of the 5M2 external thread, so that there is a natural stop for the bsiamega valve when it is attached. In this way, the articulation point for the 5M2 thread is approximately the same as the 5M2 thread size. 65 When disconnected, the lever is released. It now automatically returns in reverse direction to position 82, because the elastic housing 78 returns to the unstressed state. This is possible because the distance from the surface 118 to the axis line 107 is greater than the distance from the surface 120 of the lever 102 to the upper surface 119 of the piston 76. The rotation of the lever 102 stops when the flat surface 120 of the lever 102 rests against the plane of the upper piston 119. The upper surface of the lever 102 is at rest in the position 82 at an angle ohm o, which is approximately 452 with the axial line 36 of the ring clamp 2. Near the opening 8 of the connecting channel 5, the body 110 is equipped with a conical opening 15, which facilitates the installation of a universal nipple.

Fig. 12A, 128, 12C show an embodiment that is a combination of the nipple shown in Fig. 11 and the design of the nipple rod shown in Fig. 5A and 5B. In Fig. 12A, the rod 142 is shown in its upper 7/0 position 18, and in Fig. 128 - in the lower position 32. The construction of the rod 142 and its operation are the same as the devices of Fig. 5, except that it set in position 138 by means of an edge 135 on the lower surface of the cylinder 136. The rod structure is sealed by a seal 139 between the piston 138 and the cylinder 136. The rotary button 140 is equipped with a line 141 indicating the position of the button 140. The valve symbols 71, 72 correspond to the position 18 rod 142 and symbol 7Z corresponds to position 32 of rod 142, respectively. 75 Rotary button 140 is fixed in the position of symbols 71, 72, 73 when the piston enters the recess 145 9 (see Fig.

Fig. 12C) in button 140 with flow 144: see section A-A in Fig. 12A and section B-B in Fig. 12B, respectively. Here, too, the opening 8 of the connecting channel 5 has an axis 4.

Fig. 13 shows a universal nipple of a special design, created for use in automobile tires with narrow nipple holes, in which the nipple is pressed onto the valve, and the valve of the Zsigadegh system is opened by means of an automatically moving rod. To facilitate use, the lever 319 has a special shape and a groove 321 for the pressure hose is made in the combined lever 320.

Fig. 14 shows a universal nipple in an embodiment in which the connection is made by pressing on the valve using a rubber sleeve 366 with a groove 361 and a toroidal ring 362 in the groove and in which the system valve

The trigger can be opened with the help of an automatically moving rod, which is made in the form of a piston and is shown in the lower position. In order to eliminate the transmission of torque to the valve of the car, the surface 367 can be given a slightly conical shape. The groove 361 loosens the rubber bushing 366 at the location shown in the figure, which causes the rubber bushing to press against the threads on the valve exactly where it is most convenient. When, further, the toroidal rings are located in the groove, the force acting on the valve thread increases.

Fig. 15 shows a universal nipple in a design similar to that shown in Fig. 14, but in which the automatically moving rod is self-adjusting to perform adjustment of the valve stem of the Zespgadeg system. about co

Claims (11)

The formula of the invention Ge) and - 1. A nipple for connecting to the inflation valves of automobile tires, containing a housing (3, 16, 19, 35, 77, 110, 134, 151, 164, 190), connected to a pressure source, a connecting channel located inside the housing (5) for connection with the pumping valve, to which the nipple should be attached, while the connecting channel has a central axis (4) and an external hole (8), and "located inside the connecting channel (5) are sealing means (12, 13, 79. , that said connecting channel (5) of the valve has a stepped configuration, including at least two sections that are displaced relative to each other in the axial direction, have different diameters and are designed to fit on pumping valves of different diameters, the section having a larger diameter , -I is closer to the outer opening (8) of the connecting channel than the section having a smaller diameter, and said sealing means of the pumping valve comprises a first sealing part (13, 80, 194, 332) and a second sealing part (12, 79, 200, 330) located at different levels along the central axis (4), whereby the said first sealing part is located on the section of the channel having a larger diameter and fitted under it, and the said second sealing part is located on the section of the channel having a smaller diameter and fitted under it. c 2. The nipple according to claim 1, which is characterized in that said first sealing part (13, 194, 332) and said second sealing part (12, 200, 330) are separate parts. Z. The nipple according to claim 1, which differs in that each of the sealing parts (13, 194, 332, 12, 200, 330) 5B contains an annular sealing surface near the inner edge of the corresponding section of the connecting channel. 4. The nipple according to claim 1, which differs in that it contains a fastening thread (7, 9) inside the connecting channel (F. for attaching the nipple to the pumping valve. ka 5. The nipple according to claim 4, which is characterized by the fact that it contains a connecting sleeve (6, 191, 340), which is attached to the body (3, 190, 341) with the possibility of rotation relative to of the central axis (4) and 60 is sealed relative to the body (3, 190, 341) with the help of the second sealing part (12), while the mentioned connecting sleeve contains the fastening thread (7, 9) and the first sealing part (13, 194, 332) , and the body (3, 190, 341) contains a stop edge (198) to stop the connecting movement of the pumping valve. 6. The nipple according to claim 5, which is characterized by the fact that said connecting sleeve (191, 340) is an outer sleeve and contains an inner sleeve (193, 331) that 65 is non-rotatably connected to said outer sleeve (191, 340) using groups of ribs (196) of the inner sleeve (193, 331) and corresponding grooves (197) in the outer sleeve (191, 340), distributed along the periphery of the sleeve, and is movable in the axial direction in said outer sleeve (191, 340) and in the body (190, 341), and said second sealing part (200, 330, 333) has a stepped shape and is inserted into the corresponding milled groove (201) in such a way that the part of the stepped second sealing part with the largest step is located as close as possible to the central axis (4) . 7. A nipple according to claim 6, characterized in that said second sealing part includes a first part (330) and a second part (333), and the second part (333) is installed in the lower groove of the housing (341) and is positioned so as to press inner sleeve (341) to the body. 70 8. The nipple according to claim 1, which is characterized by the fact that the mentioned first sealing part (80) and the mentioned second sealing part (79) are formed by an elastic element (78) made in the form of a sleeve (78) made of a deformable material, which when pressed in in the radial direction to the cut of the valve for pumping creates a temporary fastening cut (79, 80), and the piston (76) is installed with the possibility of movement in the body (110) to compress the elastic element in the axial direction when actuated by means of the lever (102), which /5 Made with the possibility of returning from the rest position to the working position, in which the elastic element (78) is compressed. 9. The nipple according to claim 8, which is characterized by the fact that the mentioned lever and the housing are equipped with appropriate locking means, while the locking means of the lever are made with the possibility of interaction with the locking means of the housing when the lever is in the working position. 10. The nipple according to claim 1, which is characterized by the fact that the body (3) consists of two parts with a given angle between their respective central axes, and this angle is 30-60. 11. The nipple according to claim 9, which is characterized by the fact that the mentioned lever (102) is installed with the possibility of automatically returning to the mentioned rest position with the help of an elastic element (78) when it is released from its working position, while the mentioned lever (102) installed with the possibility of rotation around the axis (85) with the center (107) lying on the central axis (4) of the connecting channel (5), by the distance between the center (107) and the surface (118) of the lever (102) interacting with the upper part (119) of the compression piston (76) in said operating position is greater than the distance between the center (107) and the surface (120) of the lever (102) interacting with the upper part of the piston (76) in said rest position. oyu (o) (ze) (Se) m. - with . and? -I (o) (95) se) sl ime) 60 b5