JPH0112068Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a connector for multiple pipes, and more specifically, for connecting multiple pipes each having a plurality of fluid passages to the input ports and output ports of pneumatic equipment such as solenoid valves and cylinders. Concerning multiple pipe connectors.

2. Description of the Related Art Various devices for driving or controlling objects using fluids such as air have been widely used. In this case, the various devices described above usually include an input port for introducing air and an output port for removing air. Therefore,
Pipe lines are connected to the input port and the output port, respectively.

Conventionally, therefore, in order to minimize the installation space for these pipes and to facilitate their maintenance and management, the pipes for introducing and discharging the fluid have been arranged in a group as much as possible. A specific example is shown in FIG.

That is, an input (output) port 4 and an output (input) port 6 are formed in the device 2, and conduits 8 and 10 are connected to these ports 4 and 6, respectively. A first connector 12 is interposed between the conduit 8 and the port 4, while a first connector 12 is interposed between the port 6 and the conduit 1.
A second connector 14 is interposed between the connector 0 and the connector 0. In fact, the first connector 12 and the second connector 14 are threaded into the ports 4, 6, respectively, and the conduit 8 and the conduit 10 are connected to the first connector 12, respectively.
The second connector 14 is fitted into and connected to engagement conduits 16 and 18 formed integrally with the second connector 14.

Therefore, in such a configuration, pipe line 8 and pipe line 1
0 is bundled with strings 20 or bands, etc., in an effort to reduce the installation space as much as possible and to facilitate maintenance and management. However, in this prior art, for example, in a device with many output ports such as a manifold type solenoid valve, the pipes 8 and 10 are
The number of tubes that make up the system increases, and the configuration itself becomes more complex. Furthermore, as described above, since the conduit itself must be secured at several locations with strings 20, bands, etc., a considerable number of man-hours are required for the tightening. Furthermore, the number of piping steps increases in proportion to the number of tubes, and as a result, there is a considerable risk of erroneous connections between ports, so-called erroneous piping. In addition, when multiple tubes are tightened with strings or bands, in the prior art as described above, as the piping pitch becomes narrower, even if a connector is used, the tubes themselves have to be tightened due to the narrow piping pitch. Not easy to plug into the connector. Moreover, the number of connectors increases, which inconveniently increases the number of piping steps.

Therefore, as a result of intensive research and ingenuity, the inventors of the present invention focused on a multi-tube in which multiple fluid passages are defined within a single tube, and found that A connector defining a fluid passage is prepared, and the multi-pipe is airtightly connected to the tube portion protruding from the connector, and a bolt is provided in the connector to be screwed into a device such as a solenoid valve or cylinder. However, if multiple pipes and equipment are connected through these bolts, there is no need to tighten the tubes with strings, bands, etc., and there is less possibility of incorrect piping.Moreover, special consideration should be given to the piping pitch. It was found that a multi-pipe connector capable of easily and reliably connecting a fluid passage to a device was obtained, and that the various problems described above were solved at once.

Therefore, the purpose of the present invention is to provide a multi-pipe connector that can minimize the installation space, avoid incorrect piping, minimize the number of connectors, and can be manufactured at low cost. It is in.

In order to achieve the above object, the present invention comprises a bolt and a body, the body defining at least two or more fluid passages therein, and protrudingly forming a conduit corresponding to the fluid passage. , the respective conduits are formed with annular protrusions into which multiple pipes engage, and the bolts extend into holes formed in the body and themselves have holes in communication with the fluid passages of the body. furthermore, a chuck member for preventing detachment of the multi-tube corresponding to the annular protrusion and a release button for releasing the chuck member are externally fitted, and the bolt is formed at an end of the chuck member. The chuck member is screwed into a fluid passage of an object through a hole in the body and a hole in the body to fix and hold the chuck member and to engage the body to the object.

Next, preferred embodiments of the multi-pipe connector according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, reference numeral 30 indicates a multi-pipe connector according to the present invention. This connector 30 includes a rectangular parallelepiped-shaped body 32, and a first fluid passage 34 that bends from the center of the body 32 is provided inside the body 32. The first fluid passage 34 communicates with a large diameter hole 36 that passes through the body 32 in the vertical direction in the figure. The hole 36
This body 3 corresponds to the upper and lower ends.
2 are carved with annular grooves 38a, 38b, and seal rings 40a, 38b are formed in the annular grooves 38a, 38b.
40b is fitted. On the other hand, in the body 32,
A second fluid passage 42 having approximately the same diameter as the first fluid passage 34 is vertically formed on the opposite side of the hole 36 . An annular groove 46 into which a seal ring 44 is fitted is formed at the lower end of the second fluid passage 42 .

Incidentally, a first conduit 48 and a second conduit 50 are formed extending above the first fluid passage 34 and the second fluid passage 42 and protruding from the body 32, respectively. The first conduit 48 and the second conduit 50 have the same height, and have an annular protrusion 5 with a slightly sharp cross section on the outside near the upper end thereof.
2 and 54 are formed respectively.

Next, a bolt 56 is further provided in the present invention. The bolt 56 has a threaded groove 58 formed at its lower end, and a bent hole, that is, a fluid passage 60, is provided inside the long body portion.

Furthermore, a chuck member 62 is provided in the present invention. The chuck member 62 is composed of a flat plate-like small diameter portion 64 having a small diameter hole 62a and a large diameter portion 66 rising vertically from the small diameter portion 64 and forming a large diameter hole 62b. The large diameter portion 66
A plurality of tongue-like edge portions 67 directed inward and downward are formed at the upper end portion at predetermined distances in the inner circumferential direction. In this case, a release button 68 is provided above the chuck member 62. The release button 68 has a hole 68a in its center that corresponds to the hole 62b of the chuck member 62, and the outer peripheral surface of the lower end thereof is formed with an inclined surface 69 whose diameter gradually decreases toward the tip. Ru. Note that the diameters of the holes 62b and 68a are set to be approximately the same as the diameter of a multiple pipe, which will be described later.

The connector for multiple pipes according to the present invention is basically constructed as described above.Next, the function and effect when connecting multiple pipes to a solenoid valve, cylinder, etc. using this connector will be explained. .

First, an object 70 having holes corresponding to the holes 36 and the second fluid passage 42, such as a solenoid valve or a cylinder, is prepared in advance. In this case, the device 70 includes a fluid passageway 72,
74 are formed respectively. On the other hand, the multiple pipe 76 has fluid passages 78, 80 corresponding to the pipes 48, 50.
has. It is preferable that the multi-tube 76 is made of a highly flexible member made of soft synthetic resin or the like.

Next, the seal ring 40b is fitted into the annular groove 38b, and the seal ring 40a is fitted into the annular groove 38a. A seal ring 4 is provided in the annular groove 46.
Fit 4. In the above arrangement, the body 32 is placed on the device 70, and the hole 3 is
6 and the fluid passage 72, and the second fluid passage 42 and the fluid passage 74 are temporarily installed in a communicating state. In this state, the bolt 56 passes through the hole 62a of the chuck member 62 and the hole 36 of the body 32 and is fitted into the fluid passage 72. Since a threaded groove 82 is formed in the fluid passage 72 of the device 70, when the head of the bolt 56 is screwed, the threaded groove 58 at the tip of the bolt 56 will fit into the threaded groove 82 of the device 70.
2, so that the bolt 56 ultimately secures the chuck member 62 and body 32 to the device 70, as shown in FIG. Therefore, the fluid passage 60 of the bolt 56 communicates with the first fluid passage 34, and a slight gap 84 is formed between the hole 36 and the wall of the bolt 56, as shown in FIG. Bolt 5
It is possible to ensure communication between the first fluid passage 34 and the bolt fluid passage 60 regardless of the helical angle of the bolt.

Therefore, the multiple pipe 76 is fitted into the pipe lines 48 and 50 to connect the fluid passages 78 and 34, and the fluid passages 80 and 42, respectively. At that time, the multiple pipe 76 has a hole 68
Insert the release button 68 in advance through a. By the way, since the multiple pipe 76 is formed of a flexible member, if it is pressed toward the pipes 48 and 50, the edge portion 6 of the chuck member 62 will be removed.
7 is pressed outward in the figure, its fluid passages 78 and 80 are fitted onto these pipes 48 and 50, and at this time, a part of the side wall of the multiple pipe 76 is fitted with the annular protrusions 52 and 54. bulge out. That is, the annular protrusions 52 and 54 press against the sides of the multiple tube 76, ensuring airtightness to fluid. In this state, when the multi-tube 76 is pulled in the removal direction, the bulged portion engages with the edge portion 67 of the chuck member 62, thereby preventing its insertion and removal.

In such an assembly configuration, if fluid, for example, air, is sent from the multi-pipe 76 side through the fluid passage 78, the air passes through the first fluid passage 34, the hole 60, and the fluid passage 72 to the device 70. It reaches the inside of the body and performs the specified function. On the other hand, the recirculating air passes from the fluid passage 74 through the second fluid passage 42, reaches the fluid passage 80 of the multiple pipe 76, and returns. In this case, a screw groove 86 is also formed in the fluid passage 74 of the device 70, and the bolt 56 is screwed into this screw groove 86 when the body 32 is disposed facing in the opposite direction. So-called reverse use is ensured to make it possible.

By the way, in such a configuration, the multiple pipe 7
6 from the pipes 48, 50 as follows. That is, the release button 68 is strongly pressed downward. As a result, the inclined surface 69 of the release button 68 comes into pressure contact with the edge portion 67 of the chuck member 62, and eventually this edge portion 67
deflects downward and disengages from the bulging portion of the multiple tube 76. If the multiple tube 76 is pulled upward in this state, the multiple tube 76 can be easily pulled out.

Next, FIG. 5 shows another embodiment of the multiple pipe connector according to the present invention. In this embodiment, the same reference numerals as in the previous embodiment indicate the same components.

Therefore, the difference between this embodiment and the previous embodiment lies in the fact that the shapes of the multiple tubes are different. That is, as shown in FIG. 6, the multiple pipe 90 according to this embodiment is a double pipe composed of a large-diameter pipe 90a and a small-diameter pipe 90b arranged concentrically in a plane. In order to fit the multiple tubes 90 having such a shape, the connector 30 employs a double tube structure, especially for the tube body having an annular protrusion formed protrudingly formed on the body. That is, as can be understood from FIG. 5, from the body 32, the tube 90
A large-diameter tube 92 into which a is fitted is formed protrudingly, and a tube 94 into which a tube 90b is fitted.
is formed protrudingly. An annular protrusion 96 having a similar shape to the annular protrusion 52 is formed on the outside of the tubular body 92, while an annular protrusion 98 having a similar configuration is protruded from the outside of the tubular body 94.

In such a configuration, for example, multiple pipes 9
First, the inner tube body 90b constituting the tube body 9
4, and then insert the tube body 90a into the outer tube body 9.
2, the multiple pipe 90 and the device 70 will be effectively connected via the connector 30.

FIG. 7 shows yet another embodiment of the multiple pipe connector according to the present invention. In this embodiment as well, the same reference numerals as in the previous embodiment indicate the same components.

This embodiment is similar to the embodiment shown in FIG. A particular difference is that the annular protrusion 100 of the tube 92 protruding from the body 32 is formed to protrude inward. Therefore, in such a shape, the multiple tube 90 shown in FIG. 6 or the multiple tube 102 shown in FIG. 8 fits suitably. Multiple tube 102
As can be easily understood from FIG. 8, stays 104a and 1 are provided to keep the outer tubular body 102a always a certain distance apart from the inner tubular body 102b.
04b, 104c and 104d are formed. The stays 104a to 104d prevent the fluid passage defined between the tubes 102a and 102b from deforming even if the multiple tube 102 is made of a flexible member.

Therefore, the multiple pipe connector 30 shown in FIG.
For example, the outer tube 102a of the multiple tube 102 is fitted into the tube 92, and the inner tube 102
b into the tube body 94. Thereby, the multiplex tube 102 and the device 70 are effectively connected in communication through the connector 30.

According to the present invention, as described above, it has become possible to communicate airtightly and reliably between multiple pipes forming a plurality of fluid passages and various devices such as solenoid valves and cylinders in a small space. Therefore, it is possible to easily avoid the work of bundling the tubes constituting the fluid introduction system and the fluid extraction system, or the possibility of incorrect piping. In addition, the connector according to the present invention requires less space for installation, and furthermore, it can be easily fixed to the device itself, so it has the practical effect of being extremely easy to handle.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and changes in design are possible without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing the coupling relationship between multiple tubes and a device according to the prior art, and FIG. 2 is a partially omitted vertical sectional view showing the coupling relationship between a multiple tube connector, multiple tubes, and the device according to the present invention. , FIG. 3 is an exploded perspective explanatory view of the multiple tube, connector, and device shown in FIG. 2, FIG. 4 is a partial cross-sectional perspective view of the multiple tube incorporated in FIGS. 2 and 3, and FIG. FIG. 6 is a partially omitted vertical cross-sectional view showing another embodiment of the multi-pipe connector according to the present invention, FIG. 6 is a partially sectional perspective view of the multi-pipe connected to the multi-pipe connector shown in FIG. 5, and FIG. FIG. 8 is a partially omitted vertical cross-sectional view showing still another embodiment of the multi-pipe connector according to the present invention, and FIG. 8 is a partially sectional perspective view of the multi-pipe connector connected to the multi-pipe connector shown in FIG. 7. 30...Connector, 32...Body, 34...
...Fluid passage, 36... Hole, 38a, 38b...
...Annular groove, 40a, 40b...Seal ring, 4
2...Fluid passage, 44...Seal ring, 46
...Annular groove, 48, 50...Pipeline, 52, 54...
... Annular protrusion, 56 ... Bolt, 58 ... Thread groove,
60...Fluid passage, 62...Chuck member, 6
4... Small diameter part, 66... Large diameter part, 67... Edge part, 68... Release button, 69... Inclined surface, 70... Device, 72, 74... Fluid passage,
76...Multiple pipes, 78, 80...Fluid passage, 9
0...Multiple pipe, 92,94...Pipe body, 96,9
8,100...Protrusion, 102...Multiple tube, 104
a~104d...stay.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a bolt and a body, the body defining at least two or more fluid passages within the body, and protrudingly forming a conduit corresponding to the fluid passage, Each of the conduits is formed with an annular protrusion into which a multi-pipe engages, and the bolt enters a hole formed in the body and itself has a hole that communicates with the fluid passageway of the body. Further, a chuck member for preventing detachment of the multi-tube and a release button for releasing the chuck member are fitted onto the annular protrusion, and the bolt is formed at the end of the chuck member. For multiple pipes, characterized in that the chuck member is screwed into the fluid passage of the object through the hole and the hole of the body to fix and hold the chuck member and to engage the body with the object. connector. (2) A connector for multiple pipes according to claim 1 of the utility model registration, in which a fluid passage installed in the bolt is bent so as to communicate with a fluid passage installed inside the body. (3) Utility Model Registration In the connector described in claim 1 or 2, the chuck member includes a small diameter portion through which the bolt passes and a large diameter portion rising from the small diameter portion and into which the multiple pipe is fitted, and A multi-pipe connector in which a plurality of tongue-shaped edge portions that slope inward are provided along the inner circumferential direction on the large diameter portion.