Valve sealing performance detection equipment

Abstract

The utility model relates to the technical field of valve detection, and discloses a valve sealing performance detection device which comprises a workbench, the side end of a translation mechanism is provided with two groups of test pipelines, the side end of one group of test pipelines is provided with an air inlet assembly, the outer ends of the two groups of test pipelines are both fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the translation mechanism. The side end of each installation plate is fixedly connected with a plurality of clamping plates, a rectangular groove is formed in each clamping plate, a limiting assembly is arranged in each rectangular groove, and a sealing assembly is arranged at the outer end of each installation plate. According to the valve sealing performance detection device, the sealing ring can be replaced conveniently, the valve sealing performance detection device can detect valves of various caliber specifications, the situation that air leakage occurs when sealing performance detection is conducted on valves of other specifications is avoided, and therefore the applicability of the valve sealing performance detection device is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, and more specifically, to a valve sealing detection device. Background Art

[0002] When a valve is produced, its sealing performance needs to be detected to prevent fluid leakage at the valve. When performing a sealing performance test on a valve, the valve needs to be first installed on the test station, and then compressed by a pressing plate to form a closed space. Gas or other fluids are introduced into the valve body to detect whether the internal pressure of the valve is stable.

[0003] The existing patent application No. CN202320975443.7 discloses a valve sealing detection device, including a workbench. A displacement unit for valve pipeline docking is installed at the rear side of the upper surface of the workbench. A valve support unit for fixing the valve is provided at the middle position of the upper surface of the workbench. The displacement unit includes a support frame provided at the rear side of the upper surface of the workbench. This valve sealing detection device is convenient for fixing the valve by setting a support column, a U-shaped positioning frame, cooperating with a first threaded hole, a height adjustment bolt, a second threaded hole and a horizontal tightening bolt, preventing the valve from moving when pressurizing the valve, and also facilitating the adjustment of the position of the valve according to different valve models. By setting a driving motor, a first threaded section, a guide rod, a lead screw, a second threaded section and a support frame, it is convenient to drive two test pipelines to quickly dock with both ends of the valve. By setting a sealing ring and a fixing ring, leakage at the connection between the valve and the test pipeline can be prevented.

[0004] The above solution has the following deficiencies in the implementation process. Since it is difficult to replace the sealing ring of this device, the device can only detect valves of one caliber specification. When detecting the sealing performance of valves of other specifications, the sealing ring is no longer applicable, resulting in air leakage. Therefore, the applicability of this device is not wide enough. For this reason, a valve sealing detection device is needed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a valve sealing detection device to solve the problem in the prior art that since it is difficult to replace the sealing ring of this device, the device can only detect valves of one caliber specification. When detecting the sealing performance of valves of other specifications, the sealing ring is no longer applicable, resulting in air leakage. Therefore, the applicability of this device is not wide enough.

[0006] The utility model provides the following technical solution: A valve sealing performance detection device, including a workbench, a support plate is fixedly connected to the top end of the workbench, a support frame is fixedly connected to the side end of the support plate, a translation mechanism is arranged between the two side ends of the support frame, two groups of test pipes are arranged at the side end of the translation mechanism, a pressure gauge is installed at the top end of each group of test pipes, an air inlet assembly is arranged at the side end of one of the groups of test pipes, mounting plates are fixedly connected to the outer ends of the two groups of test pipes, a plurality of clamping plates are fixedly connected to the side end of each mounting plate, a rectangular groove is opened inside each clamping plate, a limiting assembly is arranged inside each rectangular groove, and a sealing assembly is arranged at the outer end of each mounting plate.

[0007] As a preference of the above technical solution, the limiting assembly includes a spring, the spring is fixedly connected to the inner side end of the rectangular groove, a rectangular plate is fixedly connected to the side end of the spring, a plug rod is fixedly connected to the side end of the rectangular plate, a pulling plate is fixedly connected to the side end of the rectangular plate, and the pulling plate penetrates to the outer side end of the clamping plate.

[0008] As a preference of the above technical solution, the sealing assembly includes a sleeve plate, the sleeve plate is sleeved on the side end of the mounting plate, a plurality of clamping slots are opened at the side end of the sleeve plate, a slot is opened at the side end of each clamping slot, a sealing ring is fixedly connected to the side end of the sleeve plate, and the sealing ring is sleeved on the outer end of the test pipe.

[0009] As a preference of the above technical solution, each clamping slot is adapted to each clamping plate, and each slot is adapted to each plug rod.

[0010] As a preference of the above technical solution, the translation mechanism includes a motor, the motor is fixedly installed on the outer side end of the support frame, a bidirectional threaded rod is installed at the output end of the motor, the side end of the bidirectional threaded rod is rotatably arranged at the inner side end of the support frame, a limiting rod is fixedly connected between the two inner side ends of the support frame, two groups of moving plates are threadedly connected to the outer end of the bidirectional threaded rod, both groups of moving plates are sleeved on the outer end of the limiting rod, and the two groups of test pipes are respectively installed at the side end of each moving plate.

[0011] As a preference of the above technical solution, the air inlet assembly includes an air pipe and an air pump, the air pipe is fixedly connected to the side end of one of the test pipes, an air pump is fixedly installed on the top end of the workbench, and the output end of the air pump is connected to the air pipe.

[0012] As a preference of the above technical solution, an electric lifting rod is fixedly installed on the top end of the workbench, and a clamping device is installed at the top end of the electric lifting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] With the provision of the limiting component and the sealing component, by pulling each pull plate, each rectangular plate and the insertion rod are driven to move. At this time, the rectangular plate presses against the spring and contracts. At this time, the insertion rod leaves the slot. At this time, by pulling the sleeve plate, the sleeve plate can be separated from the mounting plate. At this time, by pulling out the sleeve plate, the sleeve plate and the sealing ring can be separated from the outer end of the test pipeline, so as to facilitate the replacement of sealing rings of other sizes. When installing a new sealing ring, by pulling each pull plate, each rectangular plate and the insertion rod are driven to move. After the insertion rod enters the rectangular groove, by sleeving the sleeve plate on the side end of the mounting plate, the clamping plate corresponds to the clamping groove. At this time, the slot automatically aligns with the position of the insertion rod. After releasing the pull plate, the spring pushes the rectangular plate to rebound, and at this time, it drives the insertion rod to insert into the slot, so as to fix the sleeve plate and the sealing ring. Therefore, this device is convenient for replacing the sealing ring, enabling the valve sealing performance detection equipment to detect valves of various caliber specifications, avoiding air leakage when detecting the sealing performance of valves of other specifications. Therefore, the applicability of the valve sealing performance detection equipment is more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional structural view of a valve sealing performance detection equipment;

[0016] Figure 2 is a cross-sectional structural view of the mounting plate of a valve sealing performance detection equipment;

[0017] Figure 3 is Figure 2 a partial enlarged structural view of A in

[0018] Figure 4 a general structural view of a valve sealing performance detection equipment.

[0019] In the figure: 1, workbench; 101, support plate; 102, support frame; 2, motor; 201, bidirectional threaded rod; 202, limiting rod; 203, moving plate; 3, test pipeline; 301, pressure gauge; 302, air pipe; 303, air pump; 4, mounting plate; 401, clamping plate; 402, rectangular groove; 403, spring; 404, rectangular plate; 405, insertion rod; 406, pull plate; 5, sleeve plate; 501, clamping groove; 502, slot; 503, sealing ring; 6, electric lifting rod; 601, clamping device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention.

[0021] As Figures 1-4As shown in the figure, the present utility model provides a technical solution: a valve sealing detection device, including a workbench 1. A support plate 101 is fixedly connected to the top end of the workbench 1, and a support frame 102 is fixedly connected to the side end of the support plate 101. An electric lifting rod 6 is fixedly installed on the top end of the workbench 1, and a clamping device 601 is installed at the top end of the electric lifting rod 6. The clamping device 601 has the same structure as the valve support unit in the patent application No. CN202320975443.7. By starting the electric lifting rod 6, the height of the clamping device 601 can be controlled to facilitate adapting the detection device to detect the valve. The clamping device 601 can facilitate clamping and fixing the valve. A translation mechanism is provided between the two side ends of the support frame 102, and two groups of test pipes 3 are provided at the side end of the translation mechanism. A pressure gauge 301 is installed at the top end of each group of test pipes 3. An air inlet assembly is provided at the side end of one of the groups of test pipes 3. The settings of the air inlet assembly, the two groups of test pipes 3, and the pressure gauges 301 facilitate the sealing detection of the valve. Installation plates 4 are fixedly connected to the outer ends of the two groups of test pipes 3. A plurality of clamping plates 401 are fixedly connected to the side end of each installation plate 4. A rectangular groove 402 is opened inside each clamping plate 401, and a limiting assembly is provided inside each rectangular groove 402. A sealing assembly is provided at the outer end of each installation plate 4. The settings of the limiting assembly and the sealing assembly make it convenient to replace the sealing assembly of the device, enabling the valve sealing detection device to detect valves of various caliber specifications, avoiding air leakage when detecting valves of other specifications. Therefore, the applicability of the valve sealing detection device is more extensive.

[0022] As an implementation manner in this embodiment, as Figure 2 and Figure 3As shown, the limiting component includes a spring 403, the spring 403 is fixedly connected to the inner side end of the rectangular groove 402, a rectangular plate 404 is fixedly connected to the side end of the spring 403, a plug rod 405 is fixedly connected to the side end of the rectangular plate 404, a pulling plate 406 is fixedly connected to the side end of the rectangular plate 404, and the pulling plate 406 penetrates to the outer side end of the clamping plate 401; the sealing component includes a sleeve plate 5, the sleeve plate 5 is sleeved on the side end of the mounting plate 4, a plurality of card slots 501 are opened on the side end of the sleeve plate 5, a slot 502 is opened on the side end of each card slot 501, each card slot 501 is adapted to each clamping plate 401, each slot 502 is adapted to each plug rod 405, a sealing ring 503 is fixedly connected to the side end of the sleeve plate 5, and the sealing ring 503 is sleeved on the outer end of the test pipeline 3. During implementation, by pulling each pulling plate 406, each rectangular plate 404 and the plug rod 405 are driven to move. At this time, the rectangular plate 404 presses against the spring 403 for contraction. At this time, the plug rod 405 leaves the slot 502. At this time, by pulling the sleeve plate 5, the sleeve plate 5 can be separated from the mounting plate 4. At this time, by pulling out the sleeve plate 5, the sleeve plate 5 and the sealing ring 503 can be separated from the outer end of the test pipeline 3, so as to facilitate the replacement of sealing rings 503 of other sizes, enabling the valve sealing performance detection device to detect valves of various caliber specifications, avoiding air leakage when detecting the sealing performance of valves of other specifications. Therefore, the applicability of the valve sealing performance detection device is more extensive.

[0023] As an implementation method in this embodiment, as Figure 1 and Figure 4 shown, the translation mechanism includes a motor 2, the motor 2 is fixedly installed on the outer side end of the support frame 102, a bidirectional threaded rod 201 is installed at the output end of the motor 2, the side end of the bidirectional threaded rod 201 is rotatably arranged at the inner side end of the support frame 102, a limiting rod 202 is fixedly connected between the two inner side ends of the support frame 102, two groups of moving plates 203 are threadedly connected to the outer end of the bidirectional threaded rod 201, both groups of moving plates 203 are sleeved on the outer end of the limiting rod 202, and two groups of test pipelines 3 are respectively installed at the side ends of each moving plate 203. The air inlet component includes an air pipe 302 and an air pump 303. The air pipe 302 is fixedly connected to the side end of one of the test pipelines 3, the air pump 303 is fixedly installed at the top end of the workbench 1, and the output end of the air pump 303 is connected to the air pipe 302. During implementation, by starting the motor 2 to drive the bidirectional threaded rod 201 to rotate, at this time, due to the limitation of the limiting rod 202 on the moving plate 203, the two groups of moving plates 203 can be driven to translate, driving the two groups of test pipelines 3 to approach. At this time, it is convenient for the sealing ring 503 to seal the valve, so as to facilitate the detection of the sealing performance of the valve. Finally, by starting the air pump 303, air can be introduced into the air pipe 302. At this time, the gas enters the valve through the test pipeline 3, and the sealing performance of the valve can be detected through the pressure gauge 301. For a more detailed detection method, please refer to the comparative document and will not be elaborated here.

[0024] Working principle: By pulling each pull plate 406, each rectangular plate 404 and the insertion rod 405 are driven to move. At this time, the rectangular plate 404 presses against the spring 403 for contraction. At this time, the insertion rod 405 leaves the inside of the slot 502. At this time, by pulling the sleeve plate 5, the sleeve plate 5 can be separated from the mounting plate 4. At this time, by pulling and drawing the sleeve plate 5, the sleeve plate 5 and the sealing ring 503 can be separated from the outer end of the test pipeline 3, so as to facilitate the replacement of the sealing ring 503 of other sizes. When installing a new sealing ring 503, by pulling each pull plate 406, each rectangular plate 404 and the insertion rod 405 are driven to move. After the insertion rod 405 enters the rectangular groove 402, by sleeving the sleeve plate 5 on the side end of the mounting plate 4, the clamping plate 401 corresponds to the inside of the clamping groove 501. At this time, the slot 502 automatically aligns with the position of the insertion rod 405. After releasing the pull plate 406, the spring 403 pushes the rectangular plate 404 to rebound. At this time, the insertion rod 405 is driven to insert into the slot 502, so as to fix the sleeve plate 5 and the sealing ring 503. Therefore, the device is convenient for replacing the sealing ring 503, enabling the valve sealing performance detection device to detect valves of various caliber specifications, avoiding air leakage when detecting the sealing performance of valves of other specifications. Therefore, the applicability of the valve sealing performance detection device is more extensive.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A valve sealing detection device, comprising a workbench (1), a support plate (101) is fixedly connected to the top of the workbench (1), a support frame (102) is fixedly connected to the side end of the support plate (101), a translation mechanism is arranged between the two side ends of the support frame (102), two groups of test pipes (3) are arranged at the side end of the translation mechanism, a pressure gauge (301) is installed at the top of each group of test pipes (3), an air inlet assembly is arranged at the side end of one group of test pipes (3), and it is characterized in that: Both outer ends of the two groups of the test pipes (3) are fixedly connected with mounting plates (4). A plurality of clamping plates (401) are fixedly connected to the side ends of each mounting plate (4). A rectangular groove (402) is formed in the interior of each clamping plate (401). A limiting component is arranged in the interior of each rectangular groove (402). A sealing component is arranged at the outer end of each mounting plate (4).

2. The valve sealing performance detection device according to claim 1, characterized in that: The limiting component includes a spring (403). The spring (403) is fixedly connected to the inner side end of the rectangular groove (402). A rectangular plate (404) is fixedly connected to the side end of the spring (403). A plug rod (405) is fixedly connected to the side end of the rectangular plate (404). A pulling plate (406) is fixedly connected to the side end of the rectangular plate (404). The pulling plate (406) penetrates to the outer side end of the clamping plate (401).

3. The valve sealing performance detection device according to claim 2, characterized in that: The sealing component includes a sleeve plate (5). The sleeve plate (5) is sleeved on the side end of the mounting plate (4). A plurality of clamping slots (501) are formed in the side end of the sleeve plate (5). A slot (502) is formed in the side end of each clamping slot (501). A sealing ring (503) is fixedly connected to the side end of the sleeve plate (5). The sealing ring (503) is sleeved on the outer end of the test pipe (3).

4. The valve sealing performance detection device according to claim 3, characterized in that: Each clamping slot (501) is adapted to each clamping plate (401), and each slot (502) is adapted to each plug rod (405).

5. The valve sealing performance detection device according to claim 1, characterized in that: The translation mechanism includes a motor (2). The motor (2) is fixedly installed on the outer side end of the support frame (102). A bidirectional threaded rod (201) is installed at the output end of the motor (2). The side end of the bidirectional threaded rod (201) is rotatably arranged at the inner side end of the support frame (102). A limiting rod (202) is fixedly connected between the two inner side ends of the support frame (102). Two groups of moving plates (203) are threadedly connected to the outer end of the bidirectional threaded rod (201). Both groups of moving plates (203) are sleeved on the outer end of the limiting rod (202). The two groups of test pipes (3) are respectively installed at the side ends of each moving plate (203).

6. A valve sealing performance detection device according to claim 5, characterized in that: The air inlet component includes an air pipe (302) and an air pump (303). The air pipe (302) is fixedly connected to the side end of one of the test pipes (3). An air pump (303) is fixedly installed at the top end of the workbench (1). The output end of the air pump (303) is connected to the air pipe (302).

7. An apparatus for detecting the sealing performance of a valve according to claim 1, characterized in that: An electric lifting rod (6) is fixedly installed at the top end of the workbench (1). A clamping device (601) is installed at the top end of the electric lifting rod (6).

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