Electromagnetic valve assembly quality detection device integrating leakage detection

Abstract

The invention relates to the technical field of electromagnetic valve detection, in particular to an electromagnetic valve assembly quality detection device integrating leakage detection, which comprises two clamp handles, the front side of the bottom clamp handle is fixedly connected with an upper clamp frame, the front side of the top clamp handle is fixedly connected with a lower clamp frame, and the bottom of the upper clamp frame and the top of the lower clamp frame are fixedly connected with assembly frames. And the inner side of the assembly frame is movably connected with an adapter. The invention provides an electromagnetic valve assembly quality detection device integrating leakage detection, which has the advantages that the opening and closing of an upper clamp frame and a lower clamp frame are controlled through a clamp handle, adapters with different sizes are mounted in cooperation with an adjustable assembly frame, and a stable gas path is constructed by means of a gas cylinder, a pressure reducing valve and a filter; the high-pressure gas is filled into the closed cavity formed by the rubber closing nozzle and the connecting part, and finally, the pressure change in the cavity is monitored through the differential pressure sensor to judge whether leakage exists, so that the trouble that the electromagnetic valve needs to be disassembled in the traditional detection can be avoided, and the device can adapt to electromagnetic valves and pipelines with different specifications.

Description

Technical Field

[0001] This invention relates to the field of solenoid valve testing technology, specifically to a solenoid valve assembly quality testing device that integrates leakage detection. Background Technology

[0002] As is well known, a solenoid valve is an automated device that controls fluid flow through electromagnetic force. It is widely used in industries such as industry, transportation, and medicine. Especially when used in industrial pipelines, the fluid flow and pipeline pressure are relatively large, and a large number of solenoid valves are used. Therefore, during periodic maintenance, it is necessary to test the solenoid valve to avoid leakage and ensure its normal operation.

[0003] Existing solenoid valves, especially those used for industrial fluid transport, are numerous and installed in various locations. Periodic inspections of their assembly positions mostly rely on visual inspection or testing of the valve's performance and electrical components. When testing the connection seals, the solenoid valve usually needs to be removed from the pipeline. Even if the connection is undamaged, internal fluid leakage can occur due to defects or damage in the pipeline at the connection point. Given these issues, we find that existing solenoid valve testing devices struggle to simultaneously address these problems. Therefore, we propose an integrated leak detection solenoid valve assembly quality inspection device that allows for leak detection in pipeline systems without disassembly, improves efficiency, and enables testing of solenoid valves of different sizes by replacing components. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an integrated leak detection solenoid valve assembly quality inspection device. This device allows for leak detection in pipeline systems without disassembling the solenoid valve, while also improving efficiency. Furthermore, it allows for the inspection of solenoid valves of different sizes by replacing components.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an assembly quality inspection device for an integrated leakage detection solenoid valve, comprising two clamps, an upper clamp frame fixedly connected to the front side of the bottom clamp, and a lower clamp frame fixedly connected to the front side of the top clamp, wherein an assembly frame is fixedly connected to the bottom of the upper clamp and the top of the lower clamp, and an adapter is movably connected to the inner side of the assembly frame. The adapter includes a top shell, a bottom shell, and a rubber nozzle. The top of the top shell and the bottom of the bottom shell are fixedly connected to an assembly plate. The outer sides of the two assembly plates are respectively installed with two assembly frames. An air valve is fixedly connected to the inner side of the rubber nozzle. An external connecting pipe is fixedly connected to the top of the air valve. The top of the external connecting pipe passes through the top assembly plate and is fixedly connected to a connector. A differential pressure sensor is fixedly connected to the outer side of the top assembly plate. The detection head of the differential pressure sensor passes through the assembly plate and the top of the rubber nozzle and is fixedly connected to the rubber nozzle. A gas cylinder is located at the top of the upper clamp, and a pressure reducing valve and a filter are fixedly connected to the top of the upper clamp. The front side of the gas cylinder is fixedly connected to the pressure reducing valve and the filter, and the front side of the pressure reducing valve and the filter is installed with a hose and a connector.

[0006] Using the above technical solution, by setting up clamps with upper and lower clamp frames, the upper and lower clamp frames can be opened and closed when the clamps are rotated. The mounting brackets located inside the upper and lower clamp frames are used to install the adapter. In use, the two clamps can be unfolded, and the connected upper and lower clamp frames will also open passively. At this time, the top and bottom shells of the adapter will also open. Since the top and bottom shells of the adapter are connected to the upper and lower parts of the rubber coupling respectively, the rubber coupling will also open. The rubber coupling can then be locked at the connection between the pipe and the solenoid valve. Then, by closing the two clamps... Close the upper and lower clamps. At this point, the rubber nozzle is wrapped around the outside of the connection. Gas from the cylinder is then output through the hose to the inside of the connector via the pressure reducing valve and filter, and also output from the external connecting pipe and gas valve to the cavity inside the rubber nozzle. After the gas filling is closed and the connection is allowed to stand, the differential pressure sensor detects the pressure difference inside the rubber nozzle. If there is a leak at the connection between the pipeline and the solenoid valve, high-pressure gas will enter the solenoid valve and pipeline through the leak gap, thus changing the pressure difference. Conversely, if there is no leak, there is no leak. This completes the efficient leak detection of the solenoid valve assembly quality without disassembling the solenoid valve.

[0007] The present invention is further configured such that: the inner sides of both sides of the upper clamp are rotatably connected with connecting pins, the outer sides of the two connecting pins are rotatably connected to the inner sides of both sides of the lower clamp, and a torsion spring is sleeved on the outer side of the connecting pin, and the two ends of the torsion spring are fixedly connected to the upper clamp and the lower clamp respectively.

[0008] By adopting the above technical solution, a connecting pin is set to connect the upper clamp and the lower clamp, and the upper clamp, the lower clamp and the clamp handle connected thereto can rotate along the position of the connecting pin. Furthermore, a torsion spring can keep the structure in a closed state when it is not subjected to external force, so that the device can be engaged with the connection position when personnel are inspecting.

[0009] The present invention is further configured such that: the rubber nozzle includes a laminated portion, the top and bottom of the front side of the laminated portion are provided with integrally formed pressing portions, both sides of the pressing portion and the laminated portion are provided with integrally formed sealing portions, the bottom of the inner side of the top pressing portion is provided with a mating groove, and the top of the bottom pressing portion is provided with an integrally formed mating protrusion.

[0010] By adopting the above technical solution, a layered part is set to assist the connection between the top shell and the bottom shell. The pressing part is the part that contacts the pipeline and the solenoid valve. The sealing part is set outside the pipeline and outside the connecting pipe of the solenoid valve to improve the sealing performance and reduce the possibility of gas leakage during the detection process. The mating groove and mating protrusion are set so that the mating protrusion is located inside the mating groove after the rubber nozzle is locked with the detection position. Since its outside is limited by the rigid top shell and bottom shell, even if the inside of the rubber nozzle expands when gas is filled, the mating protrusion presses against the mating groove during the expansion process, which can prevent gas leakage.

[0011] The invention is further configured such that: a sealing tube is fixedly connected to the top of the top mounting plate, and both sides of the bottom of the sealing tube penetrate the top shell and are fixedly connected to the two sealing parts at the top.

[0012] By adopting the above technical solution, after the sealing part comes into contact with the pipeline, the air in the sealing part can be extracted from the sealing part through the sealing tube, so that the sealing part can fit tightly against the detection position, further reducing the probability of air leakage.

[0013] The present invention is further configured such that: a vacuum generator is fixedly connected to the bottom of the upper clamp, the bottom of the vacuum generator is installed with a sealing tube through a hose, a bottle rack is fixedly connected to the top of the upper clamp, and the inner side of the bottle rack is movably connected to the gas cylinder.

[0014] By adopting the above technical solution, by setting up a vacuum generator, it is easy to remove the air inside the sealing part from the sealing tube, and the set up bottle rack can facilitate the installation and support of the gas cylinder.

[0015] The invention is further configured such that: a retaining ring is provided on the rear side of the bottom of the bottom clamp handle, and a locking block is provided on the rear side of the top clamp handle, wherein the inner side of the locking block is engaged with the retaining ring.

[0016] By adopting the above technical solution, after the device and pipeline are locked together, the retaining ring can be rotated to the inside of the locking block and locked in place, thus avoiding poor sealing due to the opening of the clamp handles during the testing process, which would affect the test results.

[0017] The invention is further configured such that: a ring seat is fixedly connected to the rear side of the bottom of the bottom clamp handle, the inner side of the ring seat is rotatably connected to a retaining ring, a guide frame is fixedly connected to the rear side of the top clamp handle, a lead screw is rotatably connected to the inner side of the guide frame, the outer side of the lead screw is threadedly connected to a locking block, and a rotating handle is fixedly connected to the bottom of the lead screw.

[0018] By adopting the above technical solution, a ring seat is set to install the retaining ring, and the retaining ring can rotate along the ring seat. After the retaining ring is locked inside the locking block, the screw can be rotated by turning the handle. When the screw rotates, the locking block can move along the guide frame, and the retaining ring further fixes the screw, making the connection more stable.

[0019] The present invention is further configured such that: a rotating shaft is fixedly connected to the inner side of both sides of the top shell, the two rotating shafts are rotatably connected to the inner side of both sides of the bottom shell, and the two rotating shafts and two connecting pins are coaxial.

[0020] By adopting the above technical solution, a rotating shaft is set to connect the top shell and the bottom shell, and it can rotate along the rotating shaft. The shaft and the connecting pin are connected to prevent the structure from getting stuck and unable to move.

[0021] The present invention is further configured such that: the assembly frame includes an outer frame and an inner frame; a screw is rotatably connected to the inner side of the outer frame; a transmission frame is threadedly connected to the outer side of the screw; the transmission frame is fixedly connected to the inner frame on the side near the inner frame; an assembly arm is rotatably connected to the inner side of the outer frame; a mounting plate is rotatably connected to the side of the assembly arm away from the inner frame; a side arm is rotatably connected to the outer side of the inner frame; and the side arm is rotatably connected to the assembly arm on the side near the assembly arm.

[0022] By adopting the above technical solution, different sizes of fittings can be installed as needed to accommodate pipes and solenoid valves of different sizes by setting up an assembly rack. When loading and unloading fittings, they can be directly fixed to or removed from the assembly plate through the through holes and bolts on the mounting plate. When it is necessary to fit an assembly plate with fittings of different sizes, the screw can be rotated along the outer frame. The transmission frame and inner frame connected to the screw can move horizontally along the outer frame. At the same time, the side arms outside the inner frame will pull or push multiple assembly arms to open and close synchronously to fit the external dimensions of the assembly plate.

[0023] The invention is further configured such that: a through hole is provided on the inner side of the mounting plate; the mounting plate and the assembly plate are connected by bolts; a slide rod is fixedly connected to the inner side of the outer frame; and the outer side of the slide rod is slidably connected to the transmission frame.

[0024] By adopting the above technical solution, through holes are provided for mounting and disassembling the assembly plate with bolts, and the sliding rod located on the inner side of the outer frame limits the movement of the transmission frame to prevent the transmission frame from rotating or tilting and thus failing to function properly.

[0025] Compared with the prior art, the present invention provides a solenoid valve assembly quality inspection device with integrated leakage detection, which has the following beneficial effects: This integrated leak detection solenoid valve assembly quality inspection device uses a clamp handle with an upper and lower clamp holder. Rotating the clamp handle opens and closes the upper and lower clamp holders. An assembly frame located inside the upper and lower clamp holders is used to install the adapter. In use, the two clamp handles can be unfolded, and the connected upper and lower clamp holders will also open passively. At this time, the top and bottom shells of the adapter will also open. Since the top and bottom shells of the adapter are connected to the upper and lower parts of the rubber coupling respectively, the rubber coupling will also open. The rubber coupling can then be secured at the connection between the pipe and the solenoid valve, and then... By merging the two clamps, the upper and lower clamps are closed, at which point the rubber nozzle is wrapped around the outside of the connection. Gas from the cylinder is then output through a hose to the inside of the connector via a pressure reducing valve and filter, and also output from the external connecting pipe and gas valve to the cavity inside the rubber nozzle. After the gas filling is stopped and the valve is allowed to stand, the differential pressure sensor detects the pressure difference inside the rubber nozzle. If there is a leak at the connection between the pipeline and the solenoid valve, high-pressure gas will enter the solenoid valve and pipeline through the leak gap, thus changing the pressure difference. Conversely, if there is no leak, there is no leak. This completes the efficient leak detection of the solenoid valve assembly quality without disassembling the solenoid valve. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a rear view of the main structure in this invention; Figure 3 This is a partial schematic diagram of the adapter in this invention; Figure 4 This is a schematic diagram of the external structure of the adapter in this invention; Figure 5 This is a schematic diagram showing the position of the assembly rack in this invention; Figure 6 This is a schematic diagram illustrating the use of the main structure in this invention; Figure 7 This is a schematic diagram of the rubber nozzle structure in this invention; Figure 8 For the present invention Figure 5 A magnified view of a section at point A in the middle; Figure 9 This is a schematic diagram of the assembly frame in this invention; Figure 10 This is a schematic diagram showing the position of the mounting plate in this invention; Figure 11 This is a schematic diagram of the opening and closing of the top shell in this invention; Figure 12This is a schematic diagram of the outer side of a partial structure in this invention.

[0027] In the diagram: 1. Pliers handle; 2. Upper pliers frame; 3. Lower pliers frame; 4. Assembly frame; 41. Outer frame; 42. Inner frame; 43. Screw; 44. Transmission frame; 45. Assembly arm; 46. Mounting plate; 47. Side arm; 5. Adapter; 51. Top shell; 52. Bottom shell; 53. Rubber fitting; 531. Stacking part; 532. Pressing part; 533. Sealing part; 54. Assembly plate; 55. Gas valve; 56. External connecting pipe; 57. Differential pressure sensor; 6. Gas cylinder; 7. Pressure reducing valve and filter; 8. Connecting pin; 9. Torsion spring; 10. Sealing tube; 11. Vacuum generator; 12. Cylinder rack; 13. Ring; 14. Clamping block; 15. Ring seat; 16. Guide frame; 17. Lead screw; 18. Rotating shaft; 19. Slide rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please see Figures 1-9 An integrated leakage detection solenoid valve assembly quality inspection device includes two clamps 1, an upper clamp frame 2 is fixedly connected to the front side of the bottom clamp 1, a lower clamp frame 3 is fixedly connected to the front side of the top clamp 1, an assembly frame 4 is fixedly connected to the bottom of the upper clamp frame 2 and the top of the lower clamp frame 3, and an adapter 5 is movably connected to the inner side of the assembly frame 4. The adapter 5 includes a top shell 51, a bottom shell 52, and a rubber nozzle 53. The top of the top shell 51 and the bottom of the bottom shell 52 are fixedly connected to an assembly plate 54. The outer sides of the two assembly plates 54 are respectively installed with two assembly frames 4. The inner side of the rubber nozzle 53 is fixedly connected to an air valve 55. The top of the air valve 55 is fixedly connected to an external connecting pipe 56. The top of the external connecting pipe 56 passes through the top assembly plate 54 and is fixedly connected to a connector. The outer side of the top assembly plate 54 is fixedly connected to a differential pressure sensor 57. The detection head of the differential pressure sensor 57 passes through the top of the assembly plate 54 and the rubber nozzle 53 and is fixedly connected to the rubber nozzle 53. A gas cylinder 6 is provided on the top of the upper clamp 2. A pressure reducing valve and a filter 7 are fixedly connected to the top of the upper clamp 2. The front side of the gas cylinder 6 is fixedly connected to the pressure reducing valve and the filter 7. The front side of the pressure reducing valve and the filter 7 are installed with a hose and a connector. By setting the clamp handle 1 in conjunction with the upper clamp frame 2 and the lower clamp frame 3, rotating the clamp handle 1 can open and close the upper clamp frame 2 and the lower clamp frame 3. The mounting bracket 4 located inside the upper clamp frame 2 and the lower clamp frame 3 is used to install the adapter 5. In use, the two clamp handles 1 can be unfolded, and the connected upper clamp frame 2 and lower clamp frame 3 will also open passively. At this time, the top shell 51 and the bottom shell 52 of the adapter 5 will also open. Since the top shell 51 and the bottom shell 52 of the adapter 5 are connected to the upper and lower parts of the rubber nozzle 53 respectively, the rubber nozzle 53 will also open. At this time, the rubber nozzle 53 can be locked at the connection between the pipe and the solenoid valve. Then, by closing the two clamp handles 1, the adapter 5 can be installed. The clamp 1 closes the upper clamp 2 and lower clamp 3, at which point the rubber nozzle 53 is wrapped around the outside of the connection. Gas from the gas cylinder 6 is output through the hose to the inside of the connector via the pressure reducing valve and filter 7, and is also output from the external connecting pipe 56 and gas valve 55 to the cavity inside the rubber nozzle 53. After the gas filling is closed and the connection is left to stand, the differential pressure sensor 57 detects the differential pressure inside the rubber nozzle 53. If there is a leak at the connection between the pipeline and the solenoid valve, the high-pressure gas will enter the solenoid valve and pipeline through the leak gap, thus changing the differential pressure. Conversely, there is no leak, thus completing the efficient leak detection of the solenoid valve assembly quality without disassembling the solenoid valve.

[0030] Please see Figure 5The inner sides of both sides of the upper clamp 2 are rotatably connected with connecting pins 8. The outer sides of the two connecting pins 8 are rotatably connected to the inner sides of both sides of the lower clamp 3. A torsion spring 9 is sleeved on the outer side of the connecting pin 8. The two ends of the torsion spring 9 are fixedly connected to the upper clamp 2 and the lower clamp 3, respectively. The connecting pins 8 are used to connect the upper clamp 2 and the lower clamp 3, and allow the upper clamp 2, the lower clamp 3 and the clamp handle 1 connected to them to rotate along the position of the connecting pins 8. The torsion spring 9 can keep the structure in a closed state when it is not subjected to external force, so that the device can be engaged with the connection position when the personnel are inspecting. The rubber clamp 53 includes a stacked part 531. The top and bottom of the front side of the stacked part 531 are provided with integrally formed pressing parts 532. The pressing part 532 and the stacked part 531 are connected to the upper clamp 2 and the lower clamp 3. Both sides of part 531 are provided with integrally formed sealing parts 533. The bottom of the inner side of the top pressing part 532 is provided with a mating groove, and the top of the bottom pressing part 532 is provided with an integrally formed mating protrusion. By setting the stacked part 531, it is used to assist the connection between the top shell 51 and the bottom shell 52. The pressing part 532 is the part that contacts the pipeline and the solenoid valve. The sealing part 533 is located outside the pipeline and outside the connecting pipe of the solenoid valve to improve the sealing performance and reduce the possibility of gas leakage during the detection process. After the rubber nozzle 53 is locked with the detection position, the mating groove and the mating protrusion are positioned inside the mating groove. Since its exterior is limited by the rigid top shell 51 and bottom shell 52, even if the rubber nozzle 53 is locked with the detection position during gas filling, the sealing part 533 will not leak. The interior of plate 3 expands, and during the expansion process, the protrusions press against the grooves to prevent gas leakage. A sealing tube 10 is fixedly connected to the top of the top mounting plate 54. Both sides of the bottom of the sealing tube 10 penetrate the top shell 51 and are fixedly connected to the two top sealing parts 533. By setting the sealing tube 10, after the sealing part 533 contacts the pipe, the air in the sealing part 533 can be extracted from the sealing tube 10, so that the sealing part 533 can fit tightly against the detection position, further reducing the probability of leakage. A vacuum generator 11 is fixedly connected to the bottom of the upper clamp 2. The bottom of the vacuum generator 11 is installed with the sealing tube 10 through a hose. A bottle rack 12 is fixedly connected to the top of the upper clamp 2. The inner side of the bottle rack 12 is movably connected to the gas cylinder 6. Next, by setting a vacuum generator 11, air inside the sealing part 533 can be easily extracted from the sealing tube 10. The set bottle rack 12 can facilitate the installation and support of the gas cylinder 6. A retaining ring 13 is provided on the rear side of the bottom of the bottom clamp 1, and a locking block 14 is provided on the rear side of the top clamp 1. The inner side of the locking block 14 is engaged with the retaining ring 13. By setting the retaining ring 13 to cooperate with the locking block 14, after the device is engaged and fixed with the pipeline, the retaining ring 13 can be rotated to the inner side of the locking block 14 and locked, so as to avoid poor sealing due to the clamps 1 opening during the test, which would affect the test results. A ring seat 15 is fixedly connected to the rear side of the bottom of the bottom clamp 1. The inner side of the ring seat 15 is rotatably connected to the retaining ring 13. A guide frame 16 is fixedly connected to the rear side of the top clamp 1.A lead screw 17 is rotatably connected to the inner side of the guide frame 16. The outer side of the lead screw 17 is threadedly connected to the locking block 14. A rotating handle is fixedly connected to the bottom of the lead screw 17. A ring seat 15 is provided for installing a retaining ring 13, allowing the retaining ring 13 to rotate along the ring seat 15. After the retaining ring 13 is locked inside the locking block 14, the lead screw 17 can be rotated by rotating the rotating handle. When the lead screw 17 rotates, the locking block 14 can move along the guide frame 16, further fixing the lead screw 17 with the retaining ring 13, making the connection more stable. Rotating shafts 18 are fixedly connected to the inner sides of both sides of the top shell 51. The two rotating shafts 18 are rotatably connected to the inner sides of both sides of the bottom shell 52. The two rotating shafts 18 and two connecting pins 8 are coaxial. The rotating shafts 18 are used to connect the top shell 51 and the bottom shell 52, and can rotate along the rotating shafts 18. The coaxiality of the rotating shafts 18 and the connecting pins 8 prevents the structure from jamming and becoming immobile.

[0031] The working principle of this embodiment is as follows: First, based on the dimensions of the solenoid valve and the pipeline (the valve body is generally cylindrical and has threaded input and output ports for connecting to the pipeline), rotate the screw 43 of the mounting bracket 4 to adjust the position of the inner frame 42 and the mounting arm 45, so that the mounting plate 46 is adapted and the corresponding adapter 5 is fixed with bolts. Then, manually open the two clamp handles 1, driving the upper clamp 2 and the lower clamp 3 to rotate around the connecting pin 8, so that the top shell 51, bottom shell 52 and rubber nozzle 53 of the adapter 5 open simultaneously. After aligning the rubber nozzle 53 with the connection between the solenoid valve and the pipeline, release the clamp handles 1. The torsion spring 9 resets the upper clamp 2 and the lower clamp 3 to close, so that the rubber nozzle 53 covers the connection part. Then rotate the retaining ring 13. Insert the locking block 14 and lock the clamp handle 1 by rotating the screw 17 with the handle. Start the vacuum generator 11 and remove the air from the sealing part 533 through the sealing tube 10 to enhance the fit and seal. Then open the valve of the gas cylinder 6. The gas is reduced and stabilized by the pressure reducing valve and the filter 7, and after filtering impurities, it is filled into the sealed cavity formed by the rubber nozzle 53 and the connection part through the hose, the external connecting pipe 56 and the gas valve 55. After the pressure stabilizes, close the valve and let it stand. During this period, the differential pressure sensor 57 on the top mounting plate 54 monitors the pressure in the cavity in real time. If there is an assembly leak at the connection part, the high-pressure gas will seep into the pipeline and cause the pressure to drop. The sensor will detect the change and determine the leak. If there is no change, the seal is deemed qualified. After the test is completed, open the clamp handle 1 and remove the device.

[0032] Example 2: Based on Example 1, and referring to Figure 5 and Figure 9An integrated leakage detection solenoid valve assembly quality inspection device further includes an assembly frame 4, wherein the assembly frame 4 includes an outer frame 41 and an inner frame 42. A screw 43 is rotatably connected to the inner side of the outer frame 41, and a transmission frame 44 is threadedly connected to the outer side of the screw 43. The transmission frame 44 is fixedly connected to the inner frame 42 on the side closer to the inner frame 42. An assembly arm 45 is rotatably connected to the inner side of the outer frame 41. A mounting plate 46 is rotatably connected to the side of the assembly arm 45 away from the inner frame 42. A side arm 47 is rotatably connected to the outer side of the inner frame 42. The side arm 47 is rotatably connected to the assembly arm 45 on the side closer to the assembly arm 45. By setting up the assembly rack 4, different sizes of adapters 5 can be installed as needed to accommodate pipes and solenoid valves of different sizes. When installing or removing the adapters 5, they can be directly fixed to or removed from the assembly plate 54 through the through holes and bolts of the mounting plate 46. When it is necessary to fit the assembly plate 54 with different sizes of adapters 5, the screw 43 can be rotated along the outer frame 41. The transmission frame 44 and the inner frame 42 connected to the screw 43 can move horizontally along the outer frame 41. At the same time, the side arm 47 outside the inner frame 42 will pull or push multiple assembly arms 45 to open and close synchronously to fit the external dimensions of the assembly plate 54.

[0033] Please see Figure 5 The mounting plate 46 has a through hole on its inner side. The mounting plate 46 and the assembly plate 54 are connected by bolts. The inner side of the outer frame 41 is fixedly connected to a slide rod 19. The outer side of the slide rod 19 is slidably connected to the transmission frame 44. The through hole is provided to cooperate with the bolts to load and unload the assembly plate 54. The slide rod 19 located on the inner side of the outer frame 41 limits the movement of the transmission frame 44 to prevent the transmission frame 44 from rotating or tilting and thus failing to function properly.

[0034] The working principle of this embodiment is as follows: When installing or removing the adapter 5, the mounting plate 54 of the adapter 5 can be directly fixed or disassembled to the mounting plate 46 by using the through holes on the inner side of the mounting plate 46 and the bolts. When it is necessary to adapt the mounting plate 54 of the adapter 5 of different sizes, the screw 43 on the inner side of the outer frame 41 is rotated. The transmission frame 44, which is threaded to the screw 43, will move horizontally along the sliding rod 19 on the inner side of the outer frame 41. When the transmission frame 44 moves, it drives the inner frame 42, which is fixed to it, to move synchronously. During the movement of the inner frame 42, the outer side arm 47 pulls or pushes the mounting arm 45 on the inner side of the outer frame 41, so that multiple mounting arms 45 open and close synchronously, thereby adjusting the position and angle of the mounting plate 46, so as to adapt the mounting plate 54 of the adapter 5 of different sizes and meet the testing requirements of different specifications of pipelines and solenoid valves.

[0035] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve assembly quality inspection device with integrated leakage detection, comprising two clamps (1), characterized in that: The front side of the bottom clamp handle (1) is fixedly connected to the upper clamp frame (2), and the front side of the top clamp handle (1) is fixedly connected to the lower clamp frame (3). The bottom of the upper clamp frame (2) and the top of the lower clamp frame (3) are both fixedly connected to the assembly frame (4). The inner side of the assembly frame (4) is movably connected to the adapter (5). The adapter (5) includes a top shell (51), a bottom shell (52), and a rubber nozzle (53). The top of the top shell (51) and the bottom of the bottom shell (52) are fixedly connected to an assembly plate (54). The outer sides of the two assembly plates (54) are respectively installed with two assembly frames (4). The inner side of the rubber nozzle (53) is fixedly connected to an air valve (55). The top of the air valve (55) is fixedly connected to an external connecting pipe (56). The top of the external connecting pipe (56) passes through the top assembly plate (54) and is fixedly connected to a connector. The outer side of the top assembly plate (54) is fixedly connected to a differential pressure sensor (57). The detection head of the differential pressure sensor (57) passes through the top of the assembly plate (54) and the rubber nozzle (53) and is fixedly connected to the rubber nozzle (53). The top of the upper clamp (2) is provided with a gas cylinder (6), and a pressure reducing valve and a filter (7) are fixedly connected to the top of the upper clamp (2). The front side of the gas cylinder (6) is fixedly connected to the pressure reducing valve and the filter (7), and the front side of the pressure reducing valve and the filter (7) are installed with a hose and a connector.

2. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 1, characterized in that: The inner sides of both sides of the upper clamp (2) are rotatably connected with connecting pins (8), and the outer sides of the two connecting pins (8) are rotatably connected to the inner sides of both sides of the lower clamp (3). A torsion spring (9) is sleeved on the outer side of the connecting pin (8), and the two ends of the torsion spring (9) are fixedly connected to the upper clamp (2) and the lower clamp (3) respectively.

3. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 1, characterized in that: The rubber nozzle (53) includes a laminated part (531), and the top and bottom of the front side of the laminated part (531) are provided with integrally formed pressing parts (532). Both sides of the pressing part (532) and the laminated part (531) are provided with integrally formed sealing parts (533). The bottom of the inner side of the top pressing part (532) is provided with a mating groove, and the top of the bottom pressing part (532) is provided with an integrally formed mating protrusion.

4. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 2, characterized in that: A sealing tube (10) is fixedly connected to the top of the top mounting plate (54). Both sides of the bottom of the sealing tube (10) penetrate the top shell (51) and are fixedly connected to the two top sealing parts (533).

5. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 4, characterized in that: A vacuum generator (11) is fixedly connected to the bottom of the upper clamp (2). The bottom of the vacuum generator (11) is installed with a sealing tube (10) via a hose. A bottle rack (12) is fixedly connected to the top of the upper clamp (2). The inner side of the bottle rack (12) is movably connected to the gas cylinder (6).

6. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 1, characterized in that: The bottom clamp (1) has a retaining ring (13) on the rear side of the bottom, and the top clamp (1) has a locking block (14) on the rear side, the inner side of the locking block (14) and the retaining ring (13) engaging.

7. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 6, characterized in that: A ring seat (15) is fixedly connected to the rear side of the bottom of the bottom clamp (1). The inner side of the ring seat (15) is rotatably connected to the retaining ring (13). A guide frame (16) is fixedly connected to the rear side of the top clamp (1). A lead screw (17) is rotatably connected to the inner side of the guide frame (16). The outer side of the lead screw (17) is threadedly connected to the locking block (14). A rotating handle is fixedly connected to the bottom of the lead screw (17).

8. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 2, characterized in that: The inner sides of both sides of the top shell (51) are fixedly connected with rotating shafts (18), and the two rotating shafts (18) are rotatably connected to the inner sides of both sides of the bottom shell (52). The two rotating shafts (18) and the two connecting pins (8) are coaxial.

9. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 1, characterized in that: The assembly frame (4) includes an outer frame (41) and an inner frame (42). A screw (43) is rotatably connected to the inner side of the outer frame (41), and a transmission frame (44) is threadedly connected to the outer side of the screw (43). The transmission frame (44) is fixedly connected to the inner frame (42) on the side closer to the inner frame (42). An assembly arm (45) is rotatably connected to the inner side of the outer frame (41). An mounting plate (46) is rotatably connected to the side of the assembly arm (45) away from the inner frame (42). A side arm (47) is rotatably connected to the outer side of the outer frame (42), and the side arm (47) is rotatably connected to the assembly arm (45) on the side closer to the assembly arm (45).

10. The solenoid valve assembly quality inspection device with integrated leakage detection according to claim 9, characterized in that: The mounting plate (46) has a through hole on its inner side. The mounting plate (46) and the assembly plate (54) are connected by bolts. The inner side of the outer frame (41) is fixedly connected to a slide rod (19). The outer side of the slide rod (19) is slidably connected to the transmission frame (44).

Images