Valve body detection device and group valve production line

Abstract

The utility model discloses a valve body detection device and group valve production line wherein the valve body detection device comprises a frame, and a connection module and a detection module both arranged on the frame, the connection module comprises a jig seat, a first driving member, a connection rod member and a connection assembly, the jig seat is arranged on the frame, the first driving member is arranged on the frame, and the connection rod member is arranged on the frame. The jig seat can be used for bearing a valve body of a finished gas pressure reducing valve, the first driving piece is arranged on the rack, the first driving piece is provided with a plug piece, the first driving piece can drive the plug piece to move so that the plug piece can be inserted into a hand wheel assembly of the valve body on the jig seat, the connecting rod piece is arranged on the rack and is of a hollow structure, and the connecting assembly is arranged on the rack. The connecting assembly is provided with an inserting channel, the connecting rod piece is arranged in the inserting channel in a penetrating mode, the connecting assembly can drive a pagoda nut on a rubber pipe of the finished gas pressure reducing valve inserted in the inserting channel to rotate, the pagoda nut is in threaded connection with the connecting rod piece, and the plug piece and the connecting rod piece are both connected with the detection module.

Description

Technical Field

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

[0002] In the existing production process, some manufacturers will connect the assembled gas pressure reducing valve body (hereinafter referred to as the valve body) with a hose of preset length (for details, refer to Figure 7 or Figure 8 The valve body has an air inlet sleeve with a handwheel assembly, an air outlet pipe is inserted into one end of a hose, and a pagoda nut is rotatably provided at the other end of the hose) to obtain a finished gas pressure reducing valve (i.e., a valve body with a hose) for easy use by users after leaving the factory. However, the inventors of this application have found in actual production processes that even if the assembled valve body has passed performance tests (including flow tests and air tightness tests), the finished gas pressure reducing valve obtained after connecting the hose may still have performance problems. Therefore, it is necessary to design a valve body detection device to perform performance tests (including flow tests and air tightness tests) on the finished gas pressure reducing valve to ensure that it can work normally after leaving the factory. Utility Model Content

[0003] 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 valve body detection device.

[0004] The utility model also provides a valve assembly production line with the valve body detection device.

[0005] According to a first aspect of the present invention, a valve body detection device includes a frame, and a connecting module and a detection module both arranged on the frame, the connecting module and the detection module are connected, the connecting module includes a fixture seat, a first driving member, a connecting rod and a connecting assembly, the fixture seat is arranged on the frame, the fixture seat can be used for the valve body of the finished gas pressure reducing valve to be placed, the first driving member is arranged on the frame, the first driving member is provided with a plugging member, the first driving member can drive the plugging member to move so that the plugging member is inserted into the valve body on the fixture seat. A handwheel assembly, the connecting rod is arranged on the frame, the connecting rod is a hollow structure, the connecting assembly is arranged on the frame, the connecting assembly is provided with a plug-in channel, the connecting rod is passed through the plug-in channel, the connecting assembly can drive the pagoda nut on the hose of the finished gas pressure reducing valve inserted in the plug-in channel to rotate, so that the pagoda nut is threadedly connected to the connecting rod, the plug and the connecting rod are both connected to the detection module, wherein the detection module can detect the performance of the finished gas pressure reducing valve connected thereto through the plug and the connecting rod.

[0006] A valve body detection device according to an embodiment of the present invention has at least one of the following beneficial effects:

[0007] Through the above structure, when the finished gas pressure reducing valve is installed on the connecting module, that is, when the valve body of the finished gas pressure reducing valve is placed on the fixture seat and the pagoda nut of the finished gas pressure reducing valve is inserted into the plug-in channel, the first driving member can drive the plug to move to be plugged and connected with the handwheel assembly of the valve body on the fixture seat, and the connecting assembly can drive the pagoda nut inserted in the plug-in channel to be threadedly connected with the connecting rod, wherein the plug and the connecting rod are both connected to the detection module. In other words, the detection module can be connected to the finished gas pressure reducing valve installed on the connecting module through the plug and the connecting rod. At this time, the detection module can deliver gas to the finished gas pressure reducing valve through the plug, and recover the gas through the connecting rod to calculate and obtain relevant performance data (including flow data and airtightness data). In summary, the valve body detection device of the present application can perform performance detection (including flow detection and airtightness detection) on the finished gas pressure reducing valve to ensure that it can work normally after leaving the factory.

[0008] According to some embodiments of the present invention, the connecting assembly includes a rotating cylinder group and a second driving member, the rotating cylinder group is rotatably provided on the frame, the rotating cylinder group is provided with the plug-in channel, the second driving member is provided on the frame, and the second driving member is connected to the rotating cylinder group, wherein the second driving member can drive the rotating cylinder group to rotate so as to drive the pagoda nut inserted in the plug-in channel to rotate.

[0009] According to some embodiments of the present invention, the rotating cylinder group includes a cylinder part and a ring part, the cylinder part is rotatably provided on the frame, the cylinder part is a hollow structure, the inner cavity of the cylinder part includes a first cavity section and a second cavity section that are connected and arranged in sequence along its axial direction, the cylinder part is connected to the second driving part, the ring part is provided in the second cavity section, the inner cavity of the ring part is connected to the first cavity section to form the plug-in channel, wherein the second driving part can drive the cylinder part to rotate, so as to drive the ring part to rotate, so as to drive the pagoda nut inserted in the inner cavity of the ring part to rotate.

[0010] According to some embodiments of the present invention, the frame is provided with a transfer module, which is capable of receiving the finished gas pressure reducing valve and transferring the received finished gas pressure reducing valve to the connection module.

[0011] According to some embodiments of the present invention, the transfer module includes a moving component and a clamping component, the moving component is arranged on the frame, the clamping component is slidably arranged on the frame, and the clamping component is connected to the moving component, wherein the clamping component can receive the finished gas pressure reducing valve, and the clamping component can transfer the received finished gas pressure reducing valve to the connecting module after being driven to the corresponding position by the moving component.

[0012] According to some embodiments of the present utility model, the clamping assembly includes a mounting frame, a sliding frame, a third driving member, a fourth driving member and a fifth driving member, the mounting frame is slidably provided on the frame, the mounting frame is connected to the moving assembly, the sliding frame is slidably provided on the mounting frame, the third driving member is provided on the sliding frame, the third driving member is connected to the mounting frame, the fourth driving member is provided on the sliding frame, the fourth driving member is connected with a first clamp, the fifth driving member is provided on the sliding frame, and the fifth driving member is connected with a second clamp, wherein the first clamp can clamp the valve body of the finished gas pressure reducing valve, the second clamp can clamp the other end of the hose of the finished gas pressure reducing valve so as to receive the finished gas pressure reducing valve, the third driving member can drive the sliding frame to move horizontally, the fourth driving member can drive the first clamp to move vertically, and the fifth driving member can drive the second clamp to move vertically so as to transfer the received finished gas pressure reducing valve to the connection module.

[0013] According to some embodiments of the present invention, the moving assembly includes a rotating wheel member, a connecting belt and a sixth driving member, the rotating wheel member is rotatably provided on the frame, the rotating wheel members are provided in two, the connecting belt is sleeved on the two rotating wheel members, the connecting belt is connected to the clamping assembly, the sixth driving member is provided on the frame, the sixth driving member is connected to one of the rotating wheel members, wherein the sixth driving member can drive one of the rotating wheel members to rotate, so as to drive the connecting belt to operate and move the clamping assembly to the corresponding position.

[0014] According to some embodiments of the present invention, the number of the clamping components, the connecting modules, and the detecting modules is set to at least two, and at least two detecting modules are connected to at least two connecting modules in a one-to-one correspondence.

[0015] According to some embodiments of the present invention, the rack is provided with a conveying module, which is capable of receiving the inspected finished gas pressure reducing valve dropped from the connecting module and transferring the received finished gas pressure reducing valve.

[0016] The valve assembly production line according to the second embodiment of the present invention includes the valve body detection device as described above.

[0017] The valve assembly production line according to the embodiment of the present invention has at least the following beneficial effects: through the above structure, the performance of the finished gas pressure reducing valve can be tested (including flow detection and air tightness detection) to ensure that it can work normally after leaving the factory.

[0018] 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

[0019] 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:

[0020] Figure 1 This is a structural diagram of an embodiment of a valve body detection device of the present utility model;

[0021] Figure 2 for Figure 1 The structural diagram of the connecting mold after being assembled with the first finished gas pressure reducing valve;

[0022] Figure 3 for Figure 1 The structural diagram of the connecting mold after being assembled with the second finished gas pressure reducing valve;

[0023] Figure 4 for Figure 2 A cross-sectional view of the connection module shown in FIG;

[0024] Figure 5 for Figure 1 A structural diagram of the clamping assembly shown in FIG after clamping the first finished gas pressure reducing valve;

[0025] Figure 6 for Figure 1 A structural diagram of the clamping assembly shown in FIG after clamping the second finished gas pressure reducing valve;

[0026] Figure 7 This is a structural diagram of the first finished gas pressure reducing valve;

[0027] Figure 8 This is the structural diagram of the second finished gas pressure reducing valve.

[0028] Reference numerals:

[0029] Rack 100;

[0030] Connecting module 200, fixture base 210, supporting surface 211, first notch 211A, slot 212, second notch 212A, first driving member 220, plug 221, connecting rod 230, connecting assembly 240, rotating cylinder assembly 241, cylinder 241A, collar 241B, second driving member 242;

[0031] Detection module 300;

[0032] Transfer module 400, moving assembly 410, connecting belt 411, sixth driving member 412, clamping assembly 420, mounting frame 421, sliding frame 422, third driving member 423, fourth driving member 424, fifth driving member 425;

[0033] A first clamp 510 and a second clamp 520;

[0034] Finished gas pressure reducing valve 600, valve body 610, handwheel assembly 611, hose 620, pagoda nut 621;

[0035] A first gear 710 and a second gear 720;

[0036] First cavity segment S1, second cavity segment S2;

[0037] Material box 800. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Reference Figures 1 to 6 , an embodiment of the present invention provides a valve body detection device, which includes a frame 100, and a connecting module 200 and a detection module 300 both provided on the frame 100, the connecting module 200 and the detection module 300 are connected, the connecting module 200 includes a fixture seat 210, a first driving member 220, a connecting rod 230 and a connecting assembly 240, the fixture seat 210 is provided on the frame 100, the fixture seat 210 can be used for the valve body 610 of the finished gas pressure reducing valve 600 to be placed, the first driving member 220 is provided on the frame 100, the first driving member 220 is provided with a plug 221, the first driving member 220 can drive the plug 221 to move so that the plug 221 is inserted into the handwheel group of the valve body 610 provided on the fixture seat 210 Part 611, the connecting rod 230 is arranged on the frame 100, the connecting rod 230 is a hollow structure, the connecting assembly 240 is arranged on the frame 100, the connecting assembly 240 is provided with a plug-in channel, the connecting rod 230 is passed through the plug-in channel, the connecting assembly 240 can drive the pagoda nut 621 on the hose 620 of the finished gas pressure reducing valve 600 inserted in the plug-in channel to rotate, so that the pagoda nut 621 is threadedly connected to the connecting rod 230, the plug 221 and the connecting rod 230 are both connected to the detection module 300, wherein the detection module 300 can detect the performance of the finished gas pressure reducing valve 600 connected thereto (connected via the plug 221 and the connecting rod 230) through the plug 221 and the connecting rod 230.

[0043] It can be understood that the plug 221 is inserted into the handwheel assembly 611, and the connecting rod 230 is threadedly connected to the pagoda nut 621, so that the plug 221 and the connecting rod 230 are connected to the finished gas pressure reducing valve 600.

[0044] Through the above structure, when the finished gas pressure reducing valve 600 is installed on the connecting module 200, that is, when the valve body 610 of the finished gas pressure reducing valve 600 is placed on the fixture seat 210, and the pagoda nut 621 of the finished gas pressure reducing valve 600 is inserted into the plug-in channel, the first driving member 220 can drive the plug 221 to move to the handwheel assembly 611 of the valve body 610 on the fixture seat 210 for plug-in connection, and the connecting assembly 240 can drive the pagoda nut 621 inserted in the plug-in channel to be threadedly connected to the connecting rod 230, wherein the plug 221 and the connecting rod 230 are both connected to the detection module. 300 connection, in other words, the detection module 300 can be connected to the finished gas pressure reducing valve 600 installed on the connection module 200 through the plug 221 and the connecting rod 230. At this time, the detection module 300 can deliver gas to the finished gas pressure reducing valve 600 through the plug 221, and recover the gas through the connecting rod 230 to calculate and obtain relevant performance data (including flow data and airtightness data). In summary, the valve body detection device of the present application can perform performance testing (including flow testing and airtightness testing) on ​​the finished gas pressure reducing valve 600 to ensure that it can work normally after leaving the factory.

[0045] It can be understood that the detection module 300 delivers gas to the finished gas pressure reducing valve 600 through the plug 221 and recovers the gas through the connecting rod 230. Specifically, the gas input from the plug 221 flows through the valve body 610 and the hose 620 in sequence and is output from the connecting rod 230.

[0046] It is understandable that there are two types of finished gas pressure reducing valves 600. The two finished gas pressure reducing valves 600 differ only in the outer shell shape of the valve body 610. The two finished gas pressure reducing valves 600 are respectively named as the first finished gas pressure reducing valve (refer to Figure 7 As shown) and the second finished gas pressure reducing valve (refer to Figure 8 shown).

[0047] The valve body 610 of the first finished gas pressure reducing valve is placed on the fixture seat 210. Figure 2 The fixture base 210 has a supporting surface 211 with a first notch 211A formed therein. The air inlet pipe of the valve body 610 is inserted into the first notch 211A, and the handwheel assembly 611 of the valve body 610 is supported on the supporting surface 211. The first driving member 220 can drive the plug member 221 to move longitudinally, so that the plug member 221 is inserted into the handwheel assembly 611 of the valve body 610.

[0048] The valve body 610 of the second finished gas pressure reducing valve is placed on the fixture seat 210. Figure 3The fixture base 210 is provided with a slot 212 and an escape opening communicating with the slot 212. The slot 212 has an upwardly facing opening, and a second notch 212A is defined in the wall of the slot 212. The handwheel assembly 611 of the valve body 610 is inserted into the slot 212 through the opening, and the air intake pipe of the valve body 610 is inserted into the second notch 212A. The first driving member 220 is capable of driving the plug member 221 to move laterally, so that the plug member 221 is inserted into the handwheel assembly 611 of the valve body 610 through the escape opening.

[0049] In this embodiment, the first driving member 220 is configured as a cylinder. Of course, in some embodiments, the first driving member 220 can also be configured as an electric push rod.

[0050] The connecting assembly 240 includes a rotating cylinder assembly 241 and a second driving member 242 .

[0051] Reference Figures 2 to 4 The rotating cylinder group 241 is rotatably provided on the frame 100, and the rotating cylinder group 241 is provided with the above-mentioned plug-in channel. The second driving member 242 is provided on the frame 100, and the second driving member 242 is connected to the rotating cylinder group 241, wherein the second driving member 242 can drive the rotating cylinder group 241 to rotate, so as to drive the pagoda nut 621 inserted in the plug-in channel to rotate.

[0052] The rotating cylinder assembly 241 includes a cylinder member 241A and a collar member 241B.

[0053] Reference Figure 4 The cylindrical member 241A is rotatably provided on the frame 100 through a bearing member. The cylindrical member 241A has a hollow structure. The inner cavity of the cylindrical member 241A includes a first cavity segment S1 and a second cavity segment S2 that are connected and arranged in sequence along its axial direction. The cylindrical member 241A is connected to the second driving member 242. The collar member 241B is provided in the second cavity segment S2. The inner cavity of the collar member 241B is connected to the first cavity segment S1 to form the above-mentioned plug-in channel, wherein the second driving member 242 can drive the cylindrical member 241A to rotate, thereby driving the collar member 241B to rotate, thereby driving the pagoda nut 621 inserted in the inner cavity of the collar member 241B to rotate.

[0054] It can be understood that the cross-section of the pagoda nut 621 is non-circular, and the cross-section of the inner cavity of the ring member 241B matches the cross-section of the pagoda nut 621, so the rotating ring member 241B can drive the pagoda nut 621 inserted in its inner cavity to rotate.

[0055] The cylinder 241A is connected to the second driving member 242. For details, refer to Figure 4The cylindrical member 241A is sleeved with a first gear 710, and the output end of the second driving member 242 is connected to the second gear 720. The first gear 710 and the second gear 720 are engaged. The second driving member 242 can drive the second gear 720 to rotate, thereby driving the cylindrical member 241A to rotate through the first gear 710.

[0056] In some embodiments, the barrel member 241A and the collar member 241B are an integrally formed structure.

[0057] In order to cooperate with other mechanisms to realize the design of automatic valve assembly and detection, refer to Figure 1 The rack 100 is provided with a transfer module 400 , which can receive the finished gas pressure reducing valve 600 and transfer the received finished gas pressure reducing valve 600 to the connection module 200 .

[0058] The transfer module 400 includes a moving component 410 and a clamping component 420 .

[0059] Reference Figure 1 The moving component 410 is arranged on the frame 100, and the clamping component 420 is slidably arranged on the frame 100. The clamping component 420 is connected to the moving component 410, wherein the clamping component 420 can receive the finished gas pressure reducing valve 600, and the clamping component 420 can move the received finished gas pressure reducing valve 600 to the connection module 200 after being driven to the corresponding position by the moving component 410.

[0060] It is understandable that the finished gas pressure reducing valve 600 is transferred to the connection module 200, that is, the valve body 610 of the finished gas pressure reducing valve 600 is placed on the fixture seat 210, and the pagoda nut 621 of the finished gas pressure reducing valve 600 is inserted into the plug-in channel.

[0061] The clamping assembly 420 includes a mounting frame 421 , a sliding frame 422 , a third driving member 423 , a fourth driving member 424 , and a fifth driving member 425 .

[0062] Reference Figure 1 、 Figure 5 as well as Figure 6The mounting frame 421 is slidably provided on the frame 100, the mounting frame 421 is connected to the moving assembly 410, the sliding frame 422 is slidably provided on the mounting frame 421, the third driving member 423 is provided on the sliding frame 422, the third driving member 423 is connected to the mounting frame 421, the fourth driving member 424 is provided on the sliding frame 422, the fourth driving member 424 is connected to the first clamp 510, the fifth driving member 425 is provided on the sliding frame 422, the fifth driving member 425 is connected to the second clamp 520, wherein the first clamp The first clamp 510 can clamp the valve body 610 of the finished gas pressure reducing valve 600, and the second clamp 520 can clamp the other end of the hose 620 of the finished gas pressure reducing valve 600, so as to receive the finished gas pressure reducing valve 600; the third driving member 423 can drive the sliding frame 422 to move horizontally, the fourth driving member 424 can drive the first clamp 510 to move vertically, and the fifth driving member 425 can drive the second clamp 520 to move vertically, so as to transfer the received finished gas pressure reducing valve 600 to the connection module 200.

[0063] In this embodiment, the third driving member 423, the fourth driving member 424, and the fifth driving member 425 are all configured as cylinders; the first clamp 510 and the second clamp 520 are both configured as pneumatic clamps. Of course, in some embodiments, the third driving member 423, the fourth driving member 424, and the fifth driving member 425 are all configured as electric push rods, etc., and the first clamp 510 and the second clamp 520 are both configured as electric clamps, etc.

[0064] The moving assembly 410 includes a rotating wheel, a connecting belt 411 and a sixth driving member 412 .

[0065] Reference Figure 1 The rotating wheel member is rotatably provided on the frame 100, and there are two rotating wheel members. The connecting belt 411 is sleeved on the two rotating wheel members, and the connecting belt 411 is connected to the mounting frame 421. The sixth driving member 412 is provided on the frame 100, and the sixth driving member 412 is connected to one of the rotating wheel members, wherein the sixth driving member 412 can drive one of the rotating wheel members to rotate, thereby driving the connecting belt 411 to operate and moving the clamping assembly 420 to the corresponding position.

[0066] In order to improve the detection efficiency, refer to Figure 1 The number of the clamping components 420 is two, the number of the connecting modules 200 and the number of the detecting modules 300 are both six, and the six detecting modules 300 are connected to the six connecting modules 200 in a one-to-one correspondence.

[0067] In this embodiment, the frame 100 is provided with a conveying module, which can receive the inspected finished gas pressure reducing valve 600 dropped from the connecting module 200, and can transfer the received finished gas pressure reducing valve 600 to the pre-placed material box 800. The conveying module is configured as a conveyor belt mechanism, which is located below the connecting module 200 and between the connecting module 200 and the transfer module 400.

[0068] The utility model also proposes a valve assembly production line, which includes the above-mentioned valve body detection device. Through the above-mentioned structure, the performance of the finished gas pressure reducing valve can be tested (including flow detection and airtightness detection) to ensure that it can work normally after leaving the factory.

[0069] 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 valve body detection device, characterized in that: The invention comprises a frame (100), and a connection module (200) and a detection module (300) both arranged on the frame (100), wherein the connection module (200) and the detection module (300) are connected, and the connection module (200) comprises: A fixture seat (210) is provided on the frame (100), and the fixture seat (210) is capable of receiving and placing a valve body (610) of a finished gas pressure reducing valve (600); a first driving member (220) disposed on the frame (100), the first driving member (220) being provided with a plugging member (221), the first driving member (220) being capable of driving the plugging member (221) to move so that the plugging member (221) is inserted into a handwheel assembly (611) of a valve body (610) disposed on the fixture seat (210); A connecting rod (230) is provided on the frame (100), and the connecting rod (230) is a hollow structure; A connecting assembly (240) is provided on the frame (100), the connecting assembly (240) is provided with a plug-in channel, the connecting rod (230) is inserted into the plug-in channel, the connecting assembly (240) can drive the pagoda nut (621) on the hose (620) of the finished gas pressure reducing valve (600) plugged into the plug-in channel to rotate, so that the pagoda nut (621) is threadedly connected to the connecting rod (230), the plug (221) and the connecting rod (230) are both connected to the detection module (300), wherein, The detection module (300) can detect the performance of the finished gas pressure reducing valve (600) connected thereto through the plug (221) and the connecting rod (230).

2. A valve body detection device according to claim 1, characterized in that: The connection assembly (240) includes: A rotating cylinder assembly (241) is rotatably arranged on the frame (100), and the rotating cylinder assembly (241) is provided with the insertion channel; The second driving member (242) is provided on the frame (100), and the second driving member (242) is connected to the rotating cylinder group (241), wherein: The second driving member (242) can drive the rotating cylinder assembly (241) to rotate, thereby driving the pagoda nut (621) inserted in the insertion channel to rotate.

3. A valve body detection device according to claim 2, characterized in that: The rotating cylinder assembly (241) comprises: A cylindrical member (241A) is rotatably disposed on the frame (100), the cylindrical member (241A) being a hollow structure, the inner cavity of the cylindrical member (241A) comprising a first cavity section (S1) and a second cavity section (S2) that are sequentially arranged along the axial direction thereof and are in communication with each other, and the cylindrical member (241A) is connected to the second driving member (242); The collar (241B) is provided in the second cavity section (S2), and the inner cavity of the collar (241B) is communicated with the first cavity section (S1) to form the insertion channel, wherein: The second driving member (242) can drive the cylindrical member (241A) to rotate, thereby driving the collar member (241B) to rotate, thereby driving the pagoda nut (621) inserted into the inner cavity of the collar member (241B) to rotate.

4. The valve body detection device according to claim 1, characterized in that: The frame (100) is provided with a transfer module (400), and the transfer module (400) is capable of receiving a finished gas pressure reducing valve (600) and transferring the received finished gas pressure reducing valve (600) to the connection module (200).

5. A valve body detection device according to claim 4, characterized in that: The transfer module (400) includes: A moving assembly (410) is provided on the frame (100); A clamping assembly (420) is slidably disposed on the frame (100), and the clamping assembly (420) is connected to the moving assembly (410), wherein the clamping assembly (420) is capable of receiving the finished gas pressure reducing valve (600), and after the moving assembly (410) drives the clamping assembly (420) to move the received finished gas pressure reducing valve (600) to the connecting module (200).

6. A valve body detection device according to claim 5, characterized in that: The clamping assembly (420) includes: A mounting frame (421) is slidably mounted on the frame (100), and the mounting frame (421) is connected to the moving assembly (410); A sliding frame (422) slidably disposed on the mounting frame (421); A third driving member (423) is provided on the sliding frame (422), and the third driving member (423) is connected to the mounting frame (421); a fourth driving member (424) disposed on the sliding frame (422), wherein the fourth driving member (424) is connected to a first clamp (510); A fifth driving member (425) is provided on the sliding frame (422), and the fifth driving member (425) is connected to a second clamp (520), wherein: The first clamp (510) is capable of clamping the valve body (610) of the finished gas pressure reducing valve (600), and the second clamp (520) is capable of clamping the other end of the hose (620) of the finished gas pressure reducing valve (600) to receive the finished gas pressure reducing valve (600). The third driving member (423) can drive the sliding frame (422) to move horizontally, the fourth driving member (424) can drive the first clamp (510) to move vertically, and the fifth driving member (425) can drive the second clamp (520) to move vertically, so as to be able to transfer the received finished gas pressure reducing valve (600) to the connecting module (200).

7. The valve body detection device according to claim 5, characterized in that: The moving assembly (410) comprises: A rotating wheel component is rotatably arranged on the frame (100), and two rotating wheel components are provided; A connecting belt (411) is sleeved on the two rotating wheel members, and the connecting belt (411) is connected to the clamping assembly (420); A sixth driving member (412) is provided on the frame (100), and the sixth driving member (412) is connected to one of the rotating wheel members, wherein: The sixth driving member (412) can drive one of the rotating wheel members to rotate, thereby driving the connecting belt (411) to operate and moving the clamping assembly (420) to a corresponding position.

8. The valve body detection device according to claim 5, characterized in that: The number of the clamping components (420), the connecting modules (200), and the detecting modules (300) is set to at least two, and at least two detecting modules (300) are connected to at least two connecting modules (200) in a one-to-one correspondence.

9. The valve body detection device according to claim 1, characterized in that: The frame (100) is provided with a conveying module, which is capable of receiving the tested finished gas pressure reducing valve (600) dropped from the connecting module (200) and transferring the received finished gas pressure reducing valve (600).

10. Valve assembly production line, characterized by: It comprises a valve body detection device as described in any one of claims 1-9.

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