TW459111B - A non-return valve - Google Patents

Abstract

The present invention relates generally to a non-return valve (10) comprising a valve body (12) and a valve membrane (14). The valve body (12) is generally tubular and includes an elongate passageway (16) having an inlet and an outlet defined at its opposing ends (18) and (20), respectively. The valve membrane (14) is in the form of a conical-shaped diaphragm formed integral with the tubular valve body (12). The diaphragm (14) is configured as a generally conical-shaped element having a collapsible opening or aperture (22) located at or adjacent its apex. The conical diaphragm (14) is oriented with its apex in a downstream flow direction. The resiliently flexible material from which the diaphragm (14) is constructed ensures that the diaphragm (14) in a collapsed condition obstructs or closes the aperture (22) to prevent fluid flowing in a reverse direction towards the inlet (18). Pressurisation of fluid within the passageway (16) on the inlet side of the diaphragm (14) deflects the diaphragm (14) to expose the aperture (22) so that fluid can flow through the passageway (16) from the inlet (18) to the outlet (20) only.

Description

4S91 1 Five 'Invention Description (1) [Field of Invention] The Ming Dynasty is related to a kind of non-reversing, and 4 temples are the ones that can be used for pneumatic tires and films with unidirectional permeability. BACKGROUND OF THE INVENTION Non-return valves are commonly used in industrial and domestic products, especially pneumatic tires. The first figure illustrates the components of the conventional pneumatic check valve i. Non-return valve 1 includes a mouthpiece outer sheath 2 which is fixed to the tire air handle (not shown in the figure.). The inlet sheath 2 contains a sliding member 3 which can be slid. The valve member 4 is installed on the opposite side. The check valve 1 is closed under the force of the compression spring 6 outside the entrance end of the base 5. The elastic spring = the shaft 3, the end ... limits the compression spring 6 to the base: Gan 7 guides When the check valve 1 is under pressure, the valve member 4 will be loosened and relaxed from the soil seat, allowing air to flow in to fill the tire. However, the conventional inflatable check valve 丄 has at least the following problems: 1) The check valve 1 has a relatively large number of components that must be subjected to regular maintenance services; C, i 2 The check valve 1 has relatively complicated mechanism components and is also relatively expensive; (iii) The check valve is not only more complex and complicated to operate Wears easily when used. [Summary of the Invention] According to a phenomenon of the present invention, a non-return valve (n〇n_reiurn val ve) is provided, including:-a valve body (valve bdy) with a fluid passage, the fluid passage is composed The fluid inlet end and the fluid outlet end are composed of V. Description of the invention (2) It can also allow fluid to flow from the inlet end to the outlet end; and-conical-shaped diaphragm-shaped diaphragm A collapsible gap is near the apex in the downstream direction. The valve diaphragm is composed of a resiliently fiexible material connected to the cross section of the fluid channel. The valve diaphragm itself is Prevent the reverse fluid from flowing to the inlet. The opening and closing gap is closed at least initially. However, once the fluid pressure is formed at the inlet end of the valve diaphragm, it will force the valve diaphragm to deform and open the gap. Go through the fluid channel to the outlet end. According to another aspect of the present invention, there is provided a non-return valve, comprising: a valve body with a fluid channel, the fluid channel is composed of a fluid inlet end and a flow. The body outlet end is composed of a fluid inlet end Flow to the outlet end; and at least two valve diaphragms are connected in series on the same shaft and connected to the cross section of the fluid channel. Each valve diaphragm includes an openable gap and is made of an elastic material. The diaphragm itself is closed in order to prevent reverse fluid from flowing to the inlet end, but-but the fluid force formed at the inlet end of any coaxially arranged valve diaphragm will force the valve diaphragm to deform and open the corresponding gap. And let the fluid flow through the narrow channel | and only through the valve diaphragm to the outlet end. In the case of plastic molding, the pressure generated by a retractable ably fluid nozzle acts on the inlet end of the diaphragm.

5. Description of the invention (3) Among them, the fluid is generally a liquid, such as gasoline, and the check valve is used to prevent the leakage of steam. Preferably, the valve body is designed to fit in a container or tank into which the feed manifold can direct fluid. For example, this check valve is suitable for a petroleum tank device. According to another aspect of the present invention, a non-return valve is provided, which includes a series of non-return valves connected in a similar structure and cooperating with each other, and each non-return valve includes: a valve body, including A fluid channel having a fluid inlet end and a fluid outlet end, the fluid channel is used as an opening for the fluid to flow from the inlet end to the outlet end. The main body of the membrane is connected with the material, and the main membrane is separated by a valve, and the gap is connected to the end of the inverse mouth and the end is prevented by the closed membrane flow. The gap valve is sewed in parallel, the force gap is closed and the gap can be opened to make it flow, and the next condition is too deformed and not membraneed. The closed end valve makes the flow into the system to the strong channel. The whole body passes through the valve row of t-P-- J / i, the same as the other, and is incorporated into the coupling, and the components are connected to each other. The valve is as small as a system valve, and the valve is reversed. . Stop the end, the mouth-type outlet with the same purpose of reciprocating the valve to stop each other to form a system made of one-size-fits-all valves to deal with the valve and the valve stack or reverse the valve connection Each type is listed as 1F.忐 Direction of the central axis * · The square bracket flow is fed, and the valve finger is reversed to close to 74.13-1. One of the adjacent species ^. ^ A membrane is raised as a diaphragm system. The gap between the valve and the valve can be opened and closed. The situation is clear and the evidence is even better. Tip

Page 6 4S5i l | j _ 一 1 __- ^ ~ One -----______________ V. Description of the invention (4) A valve body with a fluid passage, the fluid passage is composed of a fluid inlet end and a fluid outlet end The fluid channel is modified to accommodate a device such as a non-return valve for forced driving. At least two valve diaphragms are connected in series on the same axis and connected to the cross section of the fluid channel. Each valve diaphragm contains / openable The gap is made of an elastic material, in which the valve diaphragms themselves are closed in order to prevent reverse fluid from flowing to the inlet end. However, the driving device opens at least one valve diaphragm and opens the corresponding gap. Fluid can only flow through the valve diaphragm towards the outlet end. Generally speaking, the actuating means of the non-return valve is a removable fluid feed manifold, which inserts at least one closable gap and allows the fluid to pass through the feed manifold. Through the gap. Preferably, the valve film and the valve body are manufactured in an integrated manner. Typically, the valve film is cast from a polymer material, and the polymer material is an elastic material such as rubber or nylon-based material. Preferably, the valve system is a retrofit made of an inherent valve stem. In addition, the carcass can be designed to be placed in a closed fluid flow path. The aforementioned fluid is generally water or compressed air. According to another aspect of the present invention, a membrane with unidirectional permeability (membrane) is provided. These membranes form a lattice shape that can open and close a valve diaphragm. 5. Description of the invention (5) Guangzhi's each valve diaphragm contains one person. 'Among them, these valve barriers: as a kind of elastic cavity, the gap between opening and closing is generally closed, but after a while = stop the Ling body against the current, the formation of the gate f will force the one or more ^ Body force in the valve diaphragm: the corresponding gap '纟 allows fluid to flow through the valve diaphragm to deform and stretch across the valve diaphragm. It is generally formed by weaving along the single direction. The film is multi-layered and intersects by connecting the grids in series.

Refer to the second, third, fourth, and fifth diagrams shown in the figure based on the implementation of various check valves of the 10-type check valve of the Tidi = structure * Ming phenomenon to consider and avoid the repeated introduction of similar components 'these phases': It is convenient to refer to the same reference numerals. Where each piece has been selected, in each embodiment, the check valve includes a 1 :. The valve body 12 is a tube-like type and includes an elongated channel 16 with two ends each having :: =: an outlet end 20. ^ The check valves of these embodiments are all polymerized. Generally, the elastic material of rubber or nylon bottom material is more commonly used. Two T choose these specific materials used to make the check valve 10 to one. Those who are commonly used without any special tests or experiments. ′ ° 2 A conical shaped diaphragm formed with the body of the tubular valve body 12. A circular opening 22 is formed at the tip of the piece. The tip direction of the diaphragm 14 is the direction of fluid flow. The elastic material constituting the diaphragm 14 can ensure that the gap 2 2 is blocked or closed to prevent the fluid from flowing backward from the outlet 20 to the inlet 8. The other side

V. Description of the invention (6) On the surface, the pressure formed by the fluid flowing from the inlet end 18 of the diaphragm 14 into the narrow channel 16 will deform the diaphragm 4 and open the gap 2 2. Therefore, the fluid can flow from the inlet end 18 to the narrow channel 16 to the outlet end 20 only when the gap 22 is opened. The second to fifth figures describe preferred embodiments of various applications of the check valve 10. The inlet end 18 of the non-return valve 10 in the second figure has an opening shape, and is installed in a valve pipe 24 having internal and external edges with threads. The externally threaded conduit (external 1 y threaded conduit) 26 and the internally ly threaded condu it 2 8 are opposite to the threaded nipple 24 The female thread and the male thread are fixedly locked to form a combined body 30. Due to the assembly design of the mated union 30, the valve body 12 can be fixedly disposed in the valve tube 24. From this, it is worth mentioning that the 'check valve 10 is applicable to various standard or preset pipe fittings such as the threaded stern tube 24, the inner gas guide tube 26, and the outer gas guide tube 28. Another embodiment of the reverse valve 10 as shown in the third figure, which is suitable for use as the two types of "slip on union" in the junction of the front canal 32 (tubing) 32 and the rear canal 34. ". In this embodiment, the front canal pipe and the rear canal pipe 34 are used as the extended tubular valve body 2 at both ends. As shown in a detailed enlarged view in the third figure, one or more barbs 36 on the valve body 12 are forcibly bitten and merged to improve the jointability between the front channel pipe 32 and the rear channel pipe 34 and the valve body 12. It may be necessary to pay attention to heating when assembling the front canal pipe 32 and the rear canal pipe 34 to the check valve 10 to increase its softness. The front canal pipe 32 and the rear canal pipe 34 are naturally cooled due to the surrounding environment after joining the valve body 12. Another variation of the reverse valve 10 shown in the fourth figure, which can replace the first

4 5 9 U V. Description of the invention (7) Air pressure check valve 1 known in 圊. In this embodiment, the valve body 2 has an external thread 38 to lock it in the air handle 40. The air handle 40 will be much better than the known air pressure check valve 1. The fifth figure shows a device for applying the check valve 10 of the fourth figure to a tubeless pneumatic tire. The air shank 40 is installed in a rubber sleeve 42 made by conventional techniques, and the bottom end of the rubber casing 42 includes an annular groove 44 that can be installed in the rim. In addition, the rubber sleeve 42 and the check valve: 10 may be integrally formed. In this embodiment, it is better to reduce the height of the rubber sleeve 42 or the valve body 12 so that the rubber sleeve 42 will have a better strength after entering the rim, and the strength will be reduced at the same time. The size of the cross section and the longitudinal section of the end edge (i ner 1 ip)) of the valve body 12 or the valve body 12 helps the annular channel 44 to fit into the rim. The sixth figure illustrates an embodiment of a check valve 50 according to another phenomenon of the present invention. The non-return valve 50 with the valve body 5 2 and the cylindrical diaphragm 54 is similar to the non-return valve 10 described above. The tubular valve body 52 includes an elongated channel 56, and the narrow slit channel 56 has an inlet end 58 and an outlet end 60 on each side of the diaphragm 54. The diaphragm 5 4 and the valve body 5 2 are integrally formed of an elastic polymer material. In the unique feature of the check valve 50, the annular flange 62 is fixed to the inlet end 58 side of the valve body 52. The valve body 5 2 is internally sleeved with a fuel guide tube 64 of a fuel tank, and the convex edge 6 2 is provided as a drum of a motor device (m0770r veh ic 1 e) (pictured-not shown). The plate 6 6 is fixed. The feed manifold 6 8 is not fixed in the check valve 50 and is detachable. In use, the feed manifold 6 8 bends the diaphragm 5 4 downwards and passes through the check valve. 5 0, so that gasoline fluid can be fed into the feed manifold 6 8 |

Page 10 4 5 9 1 1 11 V. Description of the invention (8) Into the fuel tank. Because of this, the feed manifold 6 8 of the diaphragm 54 can be elastically deformed through the opening to open and close the openable gap 70. It is emphasized that the main function of the diaphragm 5 4 is to prevent the volatile gasoline vapor from being spilled from the feed manifold 68 or the fuel tank. When the feed manifold 68 is pulled out of the check valve 50, the diaphragm 54 will close the gap 70 and return to its blocking state. Because of this, in the closed state, the fuel vapor is prevented from overflowing from the fuel tank or the fluid from flowing backward in the direction of the inlet end 58. The seventh to ninth figures show the explanation of the present invention with a suitable casting tool 80 that can cast the aforementioned check valve 10, and the casting tool 80 is designed to be used with a conventional injection molding machine. The casting tool 80 includes two die_sections 8 2 and a back die 8 4. Among them, the front die 82 and the rear die 84 respectively include a front die shaft 86 and a front die ring 88, and a rear die 90 and a rear die ring 92, respectively. The front mold shaft 86 and the front mold ring 88 in the front mold 82 are fixedly connected to each other, and the rear mold ring 92 in the rear mold 84 can rotate relative to the rear mold shaft 90. In this way, the casting tool 80 can be withdrawn from the thread 38 of the non-return valve 10 in this embodiment. The partial cross-sectional view of the seventh figure shows the detailed shape of the inside of the casting tool 80, which forms an inner cavity 94 as an injection polymer material. It is emphasized that a relatively thin injection slot 9 6 is connected to the front mold shaft 86 and extends through to the tip of the check valve 10 generated by the injection. The injection slit 96 forms an openable and closable slit 22 in the check valve 10. The eighth figure shows the ejected state of the casting tool 80 in the seventh figure, and its front die 82 is released from the check valve 10 for injection molding. When the injected polymer is cooled, the mold ring 8 can be rotated after the mold ring 9 2 at this time, the injection valve 10 can be rotated to release the check valve 10 from the casting tool 80 and the diaphragm 14 can be separated from the rear mold 84 i

P.11 4 5 9 t " 1 ~ V. Description of the invention (9) '' ----— Die shaft 90. In addition, the rear mold shaft 90 after the rear mold 84 may also include an ejector rod or a component that can assist the injection of the check valve 10 ejected from the mold. As described in the eighth figure, the injection hole 98 and the diversion hole 102 opposite to each other are arranged so that their function is to cause the inner cavity 94 to cause the flow of molecular materials. One of the front mold 82 and the rear mold 84 will have a protrusion 104 for positioning and engaging the front mold 82 and the rear mold 84. The injection hole 9 8 is provided as a divergence point for the polymer material to be more uniformly injected into the inner cavity. The diversion hole 10 2 is provided as the ancient eight for injection into the inner cavity g & Smooth so that the material distribution is even. The 10-knife in Figure 4 shows a check valve 100 of another preferred embodiment of the present invention, which is composed of similar check valves 12 and 14 As a result, the suan check valve 100 is turned into a self-protection device with double backflow prevention. In order to facilitate reference and avoid repeated introduction of similar components, the same reference numerals must be used. — In The unique non-return valve 100 with self-protection function, the check valve 120 and the check valve 140 connected in series have a valve body 160 and a valve body, respectively, and each combine a diaphragm 200 and a diaphragm 220 The valve body 160 or the valve body 18 is generally tubular and is integrally formed with the diaphragm 200 or the diaphragm 220. It is emphasized that the tip of the diaphragm 200 or the diaphragm 2 2 forms an openable gap 2 40 disk gap 2 6 0. The direction of the tip of the diaphragm 2 0 and the diaphragm 2 2 0 is the side of the fluid. In this embodiment, the diaphragm 200 and the diaphragm 2 20 are both made of a high-molecular polymer material, and generally a rubber or nylon-based elastic material is more commonly used. Due to the special shape of the diaphragm 200 and the Junan film 220 And the use of elastic materials to form a closeable gap 2 4 0 and a gap 2 6 0 can ensure the prevention or blocking ^ ,, spring

Page 12 4 5 9 1 1 1 V. Description of the Invention (ίο) Body countercurrent. On the other hand, if the fluid enters from the direction of the inlet end, the fluid will combine and deform the diaphragm 200 and the diaphragm 220 at the entrance end to deform the two gaps 240 and 260 described above. Because of this, the open gap 24 and the gap 260 allow the downstream fluid to flow through the non-return valve 100 with a self-protection function. In the check valve 100 with a self-protection function described in the tenth figure, the check valve 120 and the check valve 140 have two combinations. The first type is to install the check valve 140 in the inner groove of the check valve 120 'the valve body 160 of the outer check valve 120 has internal threads' and is designed to be compatible with the valve body 18 of the inner check valve HO 〇Matched with external threads. The second type is a check valve 丨 2 〇 and check valve 1 4 0 are two identical upper and lower adjacent and installed in the check valve 丨 0 〇, adjacent valve body 16 0 and valve body 1 80 is arranged in a vertical row and installed in the check valve 100. In these two types, in the diaphragm 200 and the diaphragm 220, the closeable gap 2 4 0 and the gap 2 6 0 should be aligned with each other on the same axis, and the valve body 16 0 and the valve body 1 8 0 The holes together form a narrow channel 280 for fluid circulation in the check valve 1000 and include an inlet end 300 and an outlet end 320. Figures VII--A, XIB, and --C show another specific embodiment of the present invention, which is a quick light-on joint 50 0 for connecting a water pipe 5 2 0. The quick-coupling joint 500 is designed to have a thread that cooperates with the liquid container 540 in which the check valve 100 is seated. In order to facilitate reference and avoid repetitive introduction of similar components of the check valve 100 and the check valve 10, the reference numerals used for these similar components in the check valve 10 described above are added here after the —quot; 0 " . For example, the number of the separator is designated as 200 or 220. In this application, the feed manifold, which is the fluid incident tube 560 of this embodiment, is used to open the diaphragm 200 and the diaphragm 220 instead of the fluid pressure. Fluid in

Page 13 4 5 9 11 ^ V. Description of the invention (11) ^-The shooting tube 560 is connected with the water pipe 52 by the barb 580 around the rear end. The tenth-B and ten-C diagrams show the continuous steps of quick coupling 5D0 and liquid volume = joining. Fast Yue joint 50. The initial state is sliding along the axis of the ::: incident incident officer 560 'until it reaches the periphery of the fluid incident pipe 56 °, = 0 is close to the fast-joining joint 50 °. Because the quick coupling joint 500 has just entered along the screw, the fluid incident tube 560 is driven into the septum 200 and the diaphragm 22. When =, the fluid incident tube 560 starts to penetrate the diaphragm 200 and the diaphragm 22, so that the openable gap 240 and the gap 260 are opened. Therefore, in this embodiment, the water storage or other fluid in the liquid reservoir 540 can flow vertically to the flexible water pipe 52 connected through the quick coupler 500. The fluid incident tube 56 is used as a mechanism for driving the special check valve of the present invention. The twelfth figure is a sectional view of the non-return valve 100 minutes 2 state constituted by the aforementioned quick joint. The valve body 120 and the valve body H0 are assembled in the liquid container 540 in the same axis arrangement, and each has a ring-shaped groove 62o. Its shape, size and ring shape around the inner edge of the liquid container 5 4 0 The ridges 64 are complementary, and the thirteenth figure shows another embodiment of the film of the present invention. The film 1 000 is a film with unidirectional permeability, and it can be used as a micro-scale to repair lungs. Thing. The thin film 100 is a multi-layer grid interlaced formed by a series connection with the separator 2000. In this two examples, each of the diaphragms 200 has a valve body 160 formed with the valve body of the adjacent diaphragm. However, it is worth mentioning that the membrane needs to include the valve body arranged here, and only the diaphragms need to be intersected with each other. But in any of the embodiments, the film

Page 14 45 9 1 1 1 V. Description of the invention (12)

It is in a closed state, 'and let the fluid pass through the film 100. The other side is used on the front side of the film 1000, and the gap 2400 which can be opened and closed like the diaphragm 2000 is closed, so as to prevent the reverse fluid from flowing through the film 1000. The fourteenth figure shows a sectional view and a plan view of a specific embodiment of a check valve according to the present invention. In order to facilitate reference and avoid duplication of the same components, the components already mentioned in the first to fifth and tenth figures will be described with the same reference numerals. For example, the check valve is designated as 10 'and the valve body is designated as 12. In this embodiment, the non-return valve 10 includes an actuator 1 1 ′. The actuator 11 is integrally formed with the diaphragm 14 and is extended from the diaphragm 14 to the front side to form a foldable gap 22. An elongated slit formed by cutting through the top of the cylindrical diaphragm 14 and extending along the middle of the actuator 11. The openable and narrow slit 22 extends through the annular gate 1 3 formed by the actuator 11 and the valve body 12. Furthermore, the valve body 12 includes a corresponding set of notches 15. It is used as a tool for positioning the lower end of the check valve. During operation, the actuator 11 can provide pressure to force the diaphragm 14 and the gap 22 to open to force the fluid to flow forward through the check valve 10. When it is necessary to be more suitable for casting than the above-mentioned embodiment of non-reverse rotation in use, the actuator 11 will increase the diaphragm 14. Now, several preferred specific embodiments of the present invention have been described in detail. And these check valve and permeable film production technology are at least jade, description of the invention 03)-has the following advantages: (i) the check valve system described in the present invention is relatively simple; (i ί) stop During the operation of the reverse valve, it will be more efficient due to its characteristics and design that rely on the fluid film to close; the knife control switch and (ί ii) relatively 'non-reverse Fujian' manufacturing cost will be lower. ---------- Demonstration method of taking the valve. The diaphragm can be made of virtually any kind of transmutable material, so that I ^ .- in the closed state, it can block the openable and closable gap to prevent the soil fluid from flowing through the valve or the membrane. This non-return extends to applications beyond those mentioned above. For example, a self-protecting weighted or multi-diaphragm check valve can be connected through the hull surface to provide rapid drainage of machine water that would cause personnel to slip. ..... The above is only a preferred specific embodiment of this creation, and any equivalent changes and modifications made in accordance with the scope of the patent application should fall within the scope of this creation. Those who are familiar with the technology of the present invention will be more sensitive to the variables and modifications. This can be compared with others. The injection molding process is just a "= special condition. For example, Shang Ke ... Demonstration method.

Page 16

4-5 9 1M Simple Description [Simplified Illustration] Refer to the following for a better understanding of the several embodiments to be described. The example method shown in the figure further illustrates the non-return valve of the present invention and the unidirectional direction of the permeable membrane. The first figure shows the general assembly of a conventional air pressure check valve. The second figure shows a general embodiment of the present invention. Three combination steps of check valve; The third picture shows the hair tub (irrigation tub The fourth picture shows the general combination of the example of this hair The fifth picture shows the implementation of the non-return valve of the tire of the hair The sixth picture shows The seventh diagram of the present invention is an enlarged view showing the present invention; the eighth diagram is to show the seventh and ninth diagrams to show the seventh to tenth diagrams according to another embodiment of the present invention, which is suitable for general irrigation; Ming one kind of non-return valve suitable for pneumatic tires real speed (without tube) Ming another kind of general combination suitable for high-inflatable examples; Ming another kind of non-return valve embodiment Ming one kind of cast check valve tool partial top sectional view General combination; enlarged partial sectional view of the tool in the figure and sectional view of the tool in the eight figure; three kinds of check valves that illustrate another phenomenon. Figures 11A to 11C show one application of the present invention. Sectional view of a general combination; Figures 11A to 11C of the invention. Implementation of a quick-joint water pipe check valve. The twelfth figure is a diagram showing this embodiment. The thirteenth figure shows a one-way penetrability according to another phenomenon of the present invention

Page 17 459111 is a schematic illustration of a cross-sectional view of a check valve embodiment; and FIG. 14 is a plan view and a cross-sectional view showing a final check valve embodiment according to another phenomenon of the present invention. [Element symbol shown] Check valve 1 Inlet sheath 2 Shaft 3 Valve member 4 Base 5 Compression spring 6 Spring guide ring 7 Check valve 10 Actuator 11 Valve body _ 1 2 Ring gate 13 Valve film 14 Slot 15 Slotted channel 16 Inlet end 18 Outlet end 20 Slot 2 2 Valve tube 24 Air inner tube 26 459111 The diagram is a simple illustration of the air guide outer tube 28 combination 30 front channel tube 32 rear m tube 34 barb 36 external thread 38 Air handle 40 Rubber sleeve 42 Ring groove 44 End edge 46 Non-return valve 50 Valve body 52 Diaphragm 54 Narrow channel inlet end 58 Outlet end 60 Flange 62 Guide tube 64 Panel 66 Feed manifold 68 Slot 70 Casting tool 80 Front mold 82 Rear mold 84 56

Simple description of style on page 19 Front mold shaft 86 Front mold ring 88 Back mold extraction 90 Back mold ring 92 Inner cavity 94 Injection slot 96 Injection hole 98 Check valve 100 Diversion hole 102 Convex 104 Check valve 120 Check valve 140 Valve body 160 Valve body 180 Diaphragm 200 Diaphragm 220 Gap 240 Gap 240 Gap 280 Narrow channel 280 Inlet end 300 Out α end 320 Quick coupling joint 500 Water pipe 520 Liquid container 540 459 111 560 620 The diagram briefly illustrates the fluid inlet pipe barb 5 8 0 i flange 600 annular groove ridge 640 membrane 1 0 0 0 valve body 1600 diaphragm 2 0 0 0 gap 2 4 0 0

Claims (1)

Αί &^; 1 \ /, Patent application scope—A kind of non-return valve, including: Guan body 'includes — a channel with a flow channel, the fluid narrow and elongated # outlet end; and / 阚 diaphragm is generally a "誃Located in or adjacent to a conical diaphragm with an opening and closing gap, the elastic material is connected to the flow. 'The diaphragm itself is closed to prevent the formation of more and less. At first, it will force the diaphragm to pass through the narrow channel. To the outlet 2. A non-return valve, comprising: / body, containing-a channel having a flow-shaped channel, the fluid elongated outlet end; a tip pointing in the direction of the downstream flow; the diaphragm is composed of a body-shaped narrow channel section, Its reverse fluid flows to the inlet end and the opening and closing seam can be opened, but the body pressure is formed at the inlet end of the diaphragm to open the gap, and the fluid is passed from the inlet end. The fluid flows from the inlet end to a valve diaphragm in series on the same axis and connected to the fluid elongated pass-through surface. Each diaphragm contains an openable gap and is bounded by a spring. The material is composed of 'these diaphragms are closed to prevent reverse fluid from flowing to the inlet end, but once the fluid pressure is formed at the inlet end of any coaxially aligned diaphragm, it will force the diaphragm to open> And open the corresponding gap, and let the fluid flow through the narrow channel and only pass through the diaphragm to the outlet. 3. The check valve according to item 1 or item 2 of the scope of patent application, wherein one is designed as Removes pressure from the feed manifold of the narrow channel The 22nd tribute 4 5 9 1 1 1 6. Scope of patent application Force will be forced on the inlet end of the diaphragm. 4. The non-return valve according to item 3 of the scope of patent application, wherein the valve system is designed to be installed in a container or tank where the feed manifold introduces fluid. 5. —A kind of non-return valve includes a series of similar and mutually engaged non-return valves, wherein each of the non-return valves includes: — a valve body including a fluid narrow channel having a fluid inlet end and a fluid outlet end, The fluid narrow channel serves as a channel for fluid to flow from the inlet end to the outlet end; and a valve diaphragm is mainly connected to the cross section of the fluid narrow channel and has an openable and closable gap, and is composed of an elastic material, wherein The diaphragm itself closes the openable and closable gap under the closed condition to prevent reverse fluid from flowing to the inlet end, but once the fluid pressure is formed at the inlet end of the diaphragm, it will force the diaphragm to deform and open the gap, and let the fluid pass through the inlet end. Go through the narrow channel to the exit end. 6. The non-return valve according to item 5 of the scope of the patent application, wherein the valve body corresponding to the non-return valve is coupled to the valve body of the other non-return valve, and one of them is installed in the other in a coaxial arrangement. One in. 7. The non-return valve according to item 5 of the scope of the patent application, wherein each of the non-return valves has the same valve body and the valve bodies of the other non-return valves are stacked and arranged coaxially. 8. The non-return valve according to any one of items 5 to 7 of the scope of patent application, wherein the diaphragm of the non-return valve is generally conical and has an openable gap at or near the tip of the fluid in the forward direction. . 9. Check valves, including: 11111, page 23, 459111 6. Scope of patent application-The valve body includes a fluid narrow channel with a fluid inlet end and a fluid outlet end. The fluid narrow channel is modified to accommodate a device capable of forcibly driving a check valve. ; | At least two valve diaphragms are connected in series on the same axis and connected to the cross section of the fluid elongated channel. Each diaphragm contains an open and close gap and is made of an elastic material. The diaphragm itself is designed to prevent reverse The fluid flows to the openable and closable gap of the inlet end, which is usually closed, but 'the driving device opens at least one diaphragm and its corresponding gap really allows the fluid to flow through the diaphragm only toward the outlet end. 10. As shown in item G of this article-the moving device is a kind of detachable feed management pipe, and the joint gap # fluid passes through the feed manifold U. Please patent the first or second valve in the scope of the patent And 夕夕 制 A u, 19 γ 赭 are made of ϋ and are made in one piece. 'Yachi 范围, director of the 1st or 2nd scope of the scope of interest: y — a closeable gap. The non-return valve is described, and the non-return valve is described in the following manner. A J υ is solid 1 or 2 jl f Π $: ί 子 Polymerized material casting ° • Right to solid: surround item 1 or 2 Among the reversals described by the householder, among them, the valve can be renovated by fixing the right P34 丨 or 2 items with two handles. 14, according to Shenyan 杳 童 # • ^ Wu system is designed to be inserted !! The non-return valve described in item 1 or 2 in which the valve 15.-in the fluid flow path ~ closed. The skin-permeable film of the conical diaphragm, which is composed of an openable and closable circle system, is composed of an elastic dry fabric, and each of the diaphragms includes an openable and closable gap and the fluid flows countercurrently, which can be composed of: This telemembrane itself is generally closed to prevent sweat 5. However, but fluid Page 24 A5 y 1 Μ 6. The patent application pressure is formed upstream of the diaphragm, it will force the one or more diaphragms to deform and open the corresponding gap, and let the fluid flow through the narrow channel and only along the single _ The direction passes through the diaphragm. 16. The film according to item 15 of the scope of the patent application, which is multilayered and formed by interlacing the grid-like interlacing described above. Page 25