Detection jig and group valve production line

Abstract

The utility model discloses a detection jig and a group valve production line, a jig body of the detection jig is provided with a bearing seat and a bearing block which are arranged left and right, the bearing seat is provided with a bearing surface, the bearing surface is concavely provided with a first positioning hole and an insertion hole which are arranged left and right, and the bearing seat is provided with an avoiding cavity which is located below the insertion hole and communicated with the insertion hole. When the first gas pressure reducing valve is placed on the jig body, a cup body of a valve bottom cup of the first gas pressure reducing valve abuts against the bearing face and is inserted into the inserting hole, and a gas outlet pipe of the valve bottom cup of the first gas pressure reducing valve penetrates through the first positioning hole and is partially located on the left side of the bearing seat. The hand wheel assembly is arranged in the avoiding cavity and is exposed through the detection through hole; when the second gas pressure reducing valve is placed on the jig body, a cup body of a valve bottom cup of the second gas pressure reducing valve abuts against the bearing face and is inserted into the inserting hole, a gas outlet pipe of the valve bottom cup of the second gas pressure reducing valve penetrates through the first positioning hole and is partially located on the left side of the bearing seat, and a hand wheel assembly of the second gas pressure reducing valve is borne by the bearing block.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pressure reducing valve production, in particular to a detection fixture and a valve assembly production line. Background Art

[0002] A gas pressure reducing valve is an important gas device that can reduce and stabilize output pressure. It includes a valve bottom cup, a valve cover, a diaphragm valve stem assembly, and a handwheel assembly. The valve cover is mounted on the valve bottom cup to form a chamber for the diaphragm valve stem assembly, and the handwheel assembly is sleeved onto the inlet pipe of the valve bottom cup. In the prior art, there are two types of gas pressure reducing valves, designated as first and second gas pressure reducing valves, depending on the type of valve bottom cup. Specifically, the first gas pressure reducing valve has an L-shaped tube portion on the back of its valve bottom cup, with the short end of the L-shaped tube portion being the inlet pipe and the long end being the outlet pipe. The second gas pressure reducing valve has an I-shaped tube portion on the back of its valve bottom cup, with the two ends of the I-shaped tube portion being the inlet pipe and the outlet pipe, respectively.

[0003] During the production process of the gas pressure reducing valve, the gas pressure reducing valve initially assembled after the valve cover is installed on the valve bottom cup needs to be tested for air tightness and flow rate. Only after the test results are qualified can the valve cover and the valve bottom cup be riveted to obtain a finished gas pressure reducing valve. However, since there are two types of gas pressure reducing valves, two corresponding jigs are required to hold the corresponding gas pressure reducing valves for testing. However, the setting of the two jigs will increase the testing cost of the gas pressure reducing valve. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a detection jig.

[0005] The utility model also provides a valve assembly production line with the detection fixture.

[0006] According to a first aspect of the present invention, a detection fixture includes a fixture body for holding a first gas pressure reducing valve or a second gas pressure reducing valve, the fixture body is provided with a receiving seat and a supporting block arranged on the left and right, the receiving seat is provided with a receiving surface, the receiving surface is concavely provided with a first positioning hole and a socket arranged on the left and right, the receiving seat is provided with an avoidance cavity located below the socket and connected to the socket, the bottom of the avoidance cavity is provided with a detection through hole, wherein when the first gas pressure reducing valve is placed on the fixture body, the first gas pressure reducing valve is placed on the fixture body. The cup body of the valve bottom cup of the valve abuts against the receiving surface and is inserted into the insertion hole, the air outlet pipe of the valve bottom cup passes through the first positioning hole and is partially located on the left side of the receiving seat, and the handwheel assembly is placed in the avoidance cavity and exposed through the detection through hole; when the second gas pressure reducing valve is placed on the fixture body, the cup body of the valve bottom cup of the second gas pressure reducing valve abuts against the receiving surface and is inserted into the insertion hole, the air outlet pipe of the valve bottom cup passes through the first positioning hole and is partially located on the left side of the receiving seat, and the handwheel assembly is supported by the supporting block.

[0007] A detection jig according to an embodiment of the present invention has at least one of the following beneficial effects:

[0008] Through the above structure, on the one hand, when the first gas pressure reducing valve is placed on the fixture body, one of the two connectors of the external detection equipment can be directly connected to the air outlet pipe part located on the left side of the receiving seat, and the other can be connected to the handwheel assembly located in the avoidance cavity through the detection through hole, so as to perform air tightness and flow detection on the first gas pressure reducing valve placed on the fixture body; on the other hand, when the second gas pressure reducing valve is placed on the fixture body, one of the two connectors of the external detection equipment can be directly connected to the air outlet pipe part located on the left side of the receiving seat, and the other can also be directly connected to the handwheel assembly supported on the supporting block, so as to perform air tightness and flow detection on the second gas pressure reducing valve placed on the fixture body. It can be seen from this that the detection fixture of the present application can hold the first gas pressure reducing valve for detection work, and can also hold the second gas pressure reducing valve for detection work, so it can reduce the detection cost of the gas pressure reducing valve.

[0009] According to some embodiments of the present invention, the number of the first positioning holes, the insertion holes and the avoidance chambers is set to at least two, at least two of the first positioning holes, at least two of the insertion holes and at least two of the avoidance chambers are arranged in sequence along the front-to-back direction, at least two of the first positioning holes and at least two of the insertion holes are arranged left and right in a one-to-one correspondence, and at least two of the insertion holes and at least two of the avoidance chambers are arranged in a one-to-one correspondence up and down.

[0010] According to some embodiments of the present invention, the receiving surface is provided with an avoidance recessed hole, and the avoidance recessed hole is used to provide space for an external clamp to clamp the first gas pressure reducing valve or the second gas pressure reducing valve abutting against the receiving surface.

[0011] According to some embodiments of the present invention, the receiving seat is provided with a material-saving hole, and the material-saving hole can reduce the weight of the receiving seat.

[0012] According to some embodiments of the present invention, a second positioning hole is provided on the left side of the receiving seat, and the second positioning hole is used to cooperate with an external positioning device to position the fixture body.

[0013] According to some embodiments of the present invention, a limit block is provided on the left side of the receiving seat, and the limit block extends along the front-to-back direction.

[0014] According to some embodiments of the present invention, the receiving seat and the supporting block are detachably connected.

[0015] The valve assembly production line according to the second embodiment of the present invention includes the detection jig as described above.

[0016] The valve assembly production line according to the embodiment of the present utility model has at least the following beneficial effects: through the above structure, the detection cost of the gas pressure reducing valve can be reduced.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural diagram of an embodiment of the detection fixture of the present utility model;

[0020] Figure 2 for Figure 1 Another structural diagram of the detection fixture shown in ;

[0021] Figure 3 for Figure 1 The structure diagram of the detection fixture after being equipped with the first gas pressure reducing valve shown in FIG;

[0022] Figure 4 for Figure 1 The structure diagram of the detection fixture after being equipped with the second gas pressure reducing valve is shown in FIG.

[0023] Reference numerals:

[0024] The receiving seat 100, the receiving surface 110, the first positioning hole 111, the insertion hole 112, the avoidance recessed hole 113, the avoidance cavity 120, the detection through hole 121, the material-saving hole 130, the second positioning hole 140, and the limit block 150;

[0025] Support block 200;

[0026] Cup body 310 , air outlet pipe 320 , and handwheel assembly 330 . DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] In the description of this utility model, if there are descriptions of first, second, third, fourth, fifth, etc., they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0031] Reference Figures 1 to 4 The present invention provides a detection fixture in an embodiment, which includes a fixture body for receiving a first gas pressure reducing valve or a second gas pressure reducing valve. The fixture body is provided with a receiving seat 100 and a supporting block 200 arranged on the left and right. The receiving seat 100 is provided with a receiving surface 110. The receiving surface 110 is recessed with first positioning holes 111 and an insertion hole 112 arranged on the left and right. The receiving seat 100 is provided with an avoidance cavity 120 located below the insertion hole 112 and connected to the insertion hole 112. The bottom of the avoidance cavity 120 is provided with a detection through hole 121.

[0032] It can be understood that the fixture body is used to hold the first gas pressure reducing valve or the second gas pressure reducing valve, wherein the first gas pressure reducing valve includes a gas pressure reducing valve that is preliminarily assembled after the valve cover is set on the valve bottom cup, or a finished gas pressure reducing valve formed by riveting the valve cover and the valve bottom cup; the second gas pressure reducing valve includes a gas pressure reducing valve that is preliminarily assembled after the valve cover is set on the valve bottom cup, or a finished gas pressure reducing valve formed by riveting the valve cover and the valve bottom cup.

[0033] When the first gas pressure reducing valve is placed on the fixture body, the cup body 310 of the valve bottom cup of the first gas pressure reducing valve abuts against the receiving surface 110 and is inserted into the insertion hole 112, the air outlet pipe 320 of the valve bottom cup passes through the first positioning hole 111 and is partially located on the left side of the receiving seat 100, and the handwheel assembly 330 is placed in the avoidance cavity 120 and exposed through the detection through hole 121.

[0034] When the second gas pressure reducing valve is placed on the fixture body, the cup body 310 of the valve bottom cup of the second gas pressure reducing valve abuts against the supporting surface 110 and is inserted into the insertion hole 112, the outlet pipe 320 of the valve bottom cup passes through the first positioning hole 111 and is partially located on the left side of the supporting seat 100, and the handwheel assembly 330 is supported on the supporting block 200.

[0035] Through the above structure, on the one hand, when the first gas pressure reducing valve is placed on the fixture body, one of the two connectors of the external detection equipment can be directly connected to the outlet pipe 320 portion located on the left side of the receiving seat 100, and the other can be connected to the handwheel assembly 330 located in the avoidance cavity 120 through the detection through hole 121, so as to perform air tightness and flow detection on the first gas pressure reducing valve placed on the fixture body; on the other hand, when the second gas pressure reducing valve is placed on the fixture body, one of the two connectors of the external detection equipment can be directly connected to the outlet pipe 320 portion located on the left side of the receiving seat 100, and the other can also be directly connected to the handwheel assembly 330 supported on the supporting block 200, so as to perform air tightness and flow detection on the second gas pressure reducing valve placed on the fixture body. It can be seen from this that the detection fixture of the present application can hold the first gas pressure reducing valve for detection work, and can also hold the second gas pressure reducing valve for detection work, so it can reduce the detection cost of the gas pressure reducing valve.

[0036] In this embodiment, referring to Figures 1 to 4 The number of the first positioning holes 111, the insertion holes 112 and the avoidance chamber 120 is set to three. The three first positioning holes 111, the three insertion holes 112 and the three avoidance chambers 120 are arranged in sequence along the front-to-back direction. The three first positioning holes 111 and the three insertion holes 112 are arranged left and right in a one-to-one correspondence, and the three insertion holes 112 and the three avoidance chambers 120 are connected up and down in a one-to-one correspondence.

[0037] Through the above structure, the detection fixture of the present application can simultaneously accommodate three first gas pressure reducing valves, or simultaneously accommodate three second gas pressure reducing valves, or simultaneously accommodate a total of three first gas pressure reducing valves and second gas pressure reducing valves to perform detection work, so as to improve the detection efficiency of the gas pressure reducing valve.

[0038] In some embodiments, the number of the first positioning holes 111, the insertion holes 112 and the avoidance chamber 120 is set to two, the two first positioning holes 111, the two insertion holes 112 and the two avoidance chambers 120 are arranged in sequence along the front-to-back direction, the two first positioning holes 111 and the two insertion holes 112 are arranged left and right in a one-to-one correspondence, and the two insertion holes 112 and the two avoidance chambers 120 are arranged in a one-to-one correspondence up and down.

[0039] In this embodiment, referring to Figures 1 to 4 The receiving surface 110 is provided with an avoidance recess 113 , which is used to provide space for an external fixture to clamp the first gas pressure reducing valve or the second gas pressure reducing valve abutting against the receiving surface 110 .

[0040] It can be understood that the first gas pressure reducing valve or the second gas pressure reducing valve abutting the receiving surface 110 is clamped, specifically, the cup body 310 of the valve bottom cup of the first gas pressure reducing valve or the cup body 310 of the valve bottom cup of the second gas pressure reducing valve is clamped.

[0041] In this embodiment, referring to Figures 1 to 4 The receiving seat 100 is provided with a material-saving hole 130. The material-saving hole 130 can reduce the weight of the receiving seat 100, so as to reduce the weight of the entire fixture body and reduce the carrying force required to drive the fixture body to move.

[0042] In this embodiment, referring to Figures 2 to 4 A second positioning hole 140 is provided on the left side of the receiving seat 100. The second positioning hole 140 is used to cooperate with an external positioning device to position the fixture body.

[0043] In this embodiment, referring to Figures 2 to 4 A limiting block 150 is provided on the left side of the receiving seat 100, and the limiting block 150 extends along the front-to-back direction.

[0044] With the above structure, when the jig body moves in the moving channel of the conveying mechanism, the limit block 150 is located below the protrusion provided on the side wall of the moving channel, so as to limit the jig body from escaping upward when moving in the moving channel.

[0045] In this embodiment, referring to Figures 1 to 4 The limiting block 150 and the supporting block 200 are both detachably connected to the receiving seat 100. Specifically, the limiting block 150 and the supporting block 200 are both detachably connected to the receiving seat 100 by screwing.

[0046] The above structure can facilitate the later disassembly and maintenance of the limiting block 150 , the supporting block 200 and the receiving seat 100 .

[0047] The present invention also provides a valve assembly production line, which includes the above-mentioned detection fixture. Through the above-mentioned structure, the detection cost of the gas pressure reducing valve can be reduced.

[0048] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A detection fixture, characterized by: The invention comprises a fixture body for accommodating a first gas pressure reducing valve or a second gas pressure reducing valve, wherein the fixture body is provided with a accommodating seat (100) and a supporting block (200) arranged on the left and right sides, the accommodating seat (100) is provided with a accommodating surface (110), the accommodating surface (110) is recessed with a first positioning hole (111) and an insertion hole (112) arranged on the left and right sides, the accommodating seat (100) is provided with an avoidance cavity (120) located below the insertion hole (112) and communicated with the insertion hole (112), the bottom of the avoidance cavity (120) is provided with a detection through hole (121), wherein: When the first gas pressure reducing valve is placed on the fixture body, the cup body (310) of the valve bottom cup of the first gas pressure reducing valve abuts against the placing surface (110) and is inserted into the insertion hole (112), the outlet pipe (320) of the valve bottom cup passes through the first positioning hole (111) and is partially located on the left side of the placing seat (100), and the hand wheel assembly (330) is placed in the avoidance cavity (120) and exposed through the detection through hole (121). When the second gas pressure reducing valve is placed on the fixture body, the cup body (310) of the valve bottom cup of the second gas pressure reducing valve abuts against the placing surface (110) and is inserted into the insertion hole (112), the air outlet pipe (320) of the valve bottom cup passes through the first positioning hole (111) and is partially located on the left side of the placing seat (100), and the handwheel assembly (330) is supported by the supporting block (200).

2. The detection jig according to claim 1, characterized in that: The number of the first positioning holes (111), the insertion holes (112) and the avoidance chambers (120) is set to at least two, and the at least two first positioning holes (111), the at least two insertion holes (112) and the at least two avoidance chambers (120) are arranged in sequence along the front-to-back direction. The at least two first positioning holes (111) and the at least two insertion holes (112) are arranged in a one-to-one correspondence on the left and right, and the at least two insertion holes (112) and the at least two avoidance chambers (120) are arranged in a one-to-one correspondence on the top and bottom.

3. The detection jig according to claim 1, characterized in that: The receiving surface (110) is provided with an avoidance recess (113), and the avoidance recess (113) is used to provide space for an external clamp to clamp the first gas pressure reducing valve or the second gas pressure reducing valve abutting against the receiving surface (110).

4. The detection jig according to claim 1, characterized in that: The receiving seat (100) is provided with a material-saving hole (130), and the material-saving hole (130) can reduce the weight of the receiving seat (100).

5. The detection jig according to claim 1, characterized in that: A second positioning hole (140) is provided on the left side of the receiving seat (100), and the second positioning hole (140) is used to cooperate with an external positioning device to position the fixture body.

6. The detection jig according to claim 1, characterized in that: A limiting block (150) is provided on the left side of the receiving seat (100), and the limiting block (150) is extended along the front-back direction.

7. The detection jig according to claim 1, characterized in that: The receiving seat (100) and the supporting block (200) are detachably connected.

8. Valve assembly production line, characterized by: It comprises a detection jig as described in any one of claims 1 to 7.

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