Tubular pressure-bearing workpiece pressing detection device

Abstract

The invention provides a pressing detection device for a tubular pressure-bearing workpiece, and relates to the technical field of pipeline detection. The device comprises a supporting seat, a supporting table and a rotating shaft, wherein the supporting seat is provided with a supporting table; the positioning piece is arranged on the supporting table, and a workpiece to be detected is inserted into the positioning piece; the driving piece is connected with the supporting seat; the cover plate is connected with the driving piece, and the driving piece is configured to drive the cover plate to move towards or away from the positioning piece so as to cover or be separated from the end, away from the positioning piece, of the to-be-detected workpiece; and the liquid injection assembly is configured to inject liquid into the to-be-detected workpiece when the cover plate covers the end part, deviating from the positioning piece, of the to-be-detected workpiece. During detection, the to-be-detected piece is placed in the positioning piece, then the to-be-detected piece is covered with the cover plate through the driving piece, detection liquid flows through the cover plate through the liquid injection assembly and is injected into the to-be-detected piece, the to-be-detected piece is more convenient to disassemble and assemble, and the problem that the to-be-detected piece is inconvenient to disassemble and assemble during detection is solved.

Description

Technical Field

[0001] This application relates to the field of pipe fitting testing technology, and in particular to a pressure testing device for tubular pressure-bearing workpieces. Background Technology

[0002] Tubular pressure-bearing components are used for connecting liquid transport pipelines. When connecting to other pipelines at both ends, they need to be sealed. The tubular pressure-bearing components must be able to withstand internal pressure and maintain the structural integrity and sealing of the components. During production and processing, the sealing and pressure-bearing capacity of the components need to be tested.

[0003] Existing pressure testing devices consist of a base, support column, placement platform, and water pipe. In use, the workpiece to be tested is fixed between the placement platform and the water pipe connector by bolts. Water is then injected into the workpiece through the water pipe, and the sealing effect and pressure resistance of the workpiece are tested by the injected water pressure.

[0004] However, when disassembling and assembling the workpiece to be inspected, the bolts need to be frequently unscrewed or screwed in, making it inconvenient to disassemble and assemble the workpiece during inspection. Summary of the Invention

[0005] This application provides a pressure testing device for tubular workpieces to solve the problem of inconvenient disassembly and assembly during workpiece sealing testing.

[0006] On the one hand, this application provides a workpiece pressure testing device, comprising:

[0007] Support base, on which a support platform is provided;

[0008] A positioning element is disposed on the support platform, and a pressure-bearing element is inserted into the positioning element.

[0009] A driving component, which is connected to the support base;

[0010] A cover plate connected to the drive member, the drive member being configured to drive the cover plate to move toward or away from the positioning member to cover or detach from the end of the pressure member away from the positioning member;

[0011] The liquid injection assembly is configured to inject liquid into the interior of the pressure member when the cover plate covers the end of the pressure member away from the positioning member.

[0012] In one possible implementation, the workpiece pressure testing device provided in this application has a mounting groove (annular groove) on the positioning member, which is used to match the end of the pressure-bearing member to accommodate the end of the pressure-bearing member.

[0013] In one possible implementation, the workpiece pressure testing device provided in this application further includes a first sealing element, which is disposed in the mounting groove and is used to seal the gap between the mounting groove and the end of the pressure-bearing member.

[0014] And / or, it also includes a second seal disposed on the side of the cover plate facing the support platform, the second seal being used to seal the gap between the cover plate and the end of the pressure-bearing member facing the cover plate.

[0015] In one possible implementation, the workpiece pressure testing device provided in this application includes a driving member comprising a driving seat and a movable member disposed on the driving seat. The driving seat is hinged to the support seat, and the movable member is hinged to the cover plate. The movable member moves relative to the driving seat to drive the cover plate to move toward or away from the positioning member.

[0016] At least two driving components are provided, and the at least two driving components are arranged sequentially at intervals around the periphery of the cover plate.

[0017] In one possible implementation, the workpiece pressure testing device provided in this application further includes at least two guide components, which are disposed on the cover plate. The two guide components are arranged sequentially at intervals around the periphery of the cover plate, and the guide components are used to guide the cover plate to cover the end of the pressure-bearing member away from the positioning member.

[0018] In one possible implementation, the workpiece pressure testing device provided in this application includes a guide component that is fixed to the cover plate and is inclined in a direction away from the cover plate.

[0019] In one possible implementation, the workpiece pressure testing device provided in this application further includes a roller in the guide assembly. The roller is disposed on the side of the guide member facing the cover plate and is used to abut against the outer wall of the pressure-bearing member to guide the cover plate to cover the end of the pressure-bearing member away from the positioning member.

[0020] In one possible implementation, the workpiece pressure testing device provided in this application has at least two rollers on the guide member, and the rollers are arranged at intervals along the extension direction of the guide member.

[0021] In one possible implementation, the workpiece pressure testing device provided in this application includes a liquid injection assembly comprising a first liquid injection pipe and a second liquid injection pipe connected to the first liquid injection pipe. The first liquid injection pipe is slidably connected to the support base, and the second liquid injection pipe is disposed on the cover plate. The second liquid injection pipe is configured to guide the liquid injected by the first liquid injection pipe into the workpiece.

[0022] In one possible implementation, the workpiece pressure testing device provided in this application includes a support base comprising a base and a support frame disposed on the base, the driving component and the liquid injection assembly both disposed on the support frame, and a support platform disposed on the base, wherein the support platform is located within the area enclosed by the support frame.

[0023] A drain valve and a drain hole are provided on the support platform, and the drain hole is located in the area enclosed by the positioning member. The drain valve is used to open or close the drain hole.

[0024] The workpiece pressure testing device provided in this application comprises a support base, a positioning component, a driving component, a cover plate, and a liquid injection assembly. A support platform is mounted on the support base, and a positioning component is mounted on the support platform. The workpiece to be tested is inserted into the positioning component to position one end of the workpiece along its length. Simultaneously, a cover plate is positioned above the corresponding position where the support platform contacts the workpiece. A driving component mounted on the support base drives the cover plate away from or towards the positioning component, covering or detaching it from the end of the workpiece away from the positioning component, thus limiting the other end of the workpiece along its length. During testing, the workpiece is placed inside the positioning component, and then the driving component moves the cover plate onto the workpiece. The testing liquid flows through the liquid injection assembly and is injected into the workpiece through the cover plate. After testing, the driving component detaches the cover plate from the workpiece and removes it from the positioning component. Compared to existing technologies, this application provides more convenient assembly and disassembly of the workpiece, solving the problem of inconvenient assembly and disassembly during sealing checks. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 This is a schematic diagram of the workpiece pressure testing device provided in the embodiments of this application;

[0027] Figure 2 for Figure 1 A cross-sectional view of the structure at point A in the middle;

[0028] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0029] Figure 4 for Figure 2 An enlarged schematic diagram of the structure at point C.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100 - Support base; 110 - Base; 120 - Support frame; 130 - Drain valve; 140 - Drain hole;

[0032] 200 - Support platform; 210 - Positioning element; 211 - Mounting groove; 2111 - First sealing element;

[0033] 300 - Workpiece to be inspected;

[0034] 400 - Drive component; 410 - Drive base; 420 - Moving component;

[0035] 500 - Cover plate; 510 - Second seal; 520 - Guide assembly; 521 - Guide element; 522 - Roller;

[0036] 600 - Injection assembly; 610 - First injection tube; 620 - Second injection tube.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0040] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0041] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0042] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0043] Unless otherwise stated, the term "multiple" means two or more.

[0044] In various engineering and industrial equipment, workpieces that can withstand internal or external pressure and maintain structural integrity and sealing need to be tested for sealing and pressure resistance during production and processing.

[0045] Existing pressure testing devices typically consist of a base, support column, drain valve, placement platform, and water pipe. In use, the workpiece to be tested is fixed to the connection between the placement platform and the water pipe using bolts. Water is then injected into the workpiece through the water pipe, and the water pressure is used to test the workpiece's sealing effect and pressure resistance. The water is then drained through the drain valve. However, disassembling and reassembling the workpiece requires frequent tightening and loosening of the bolts, making disassembly and reassembly inconvenient during testing.

[0046] The workpiece pressure testing device provided in this application comprises a support base, a positioning component, a driving component, a cover plate, and a liquid injection assembly. A support platform is mounted on the support base, and a positioning component is mounted on the support platform. The workpiece to be tested is inserted into the positioning component to position one end of the workpiece along its length. Simultaneously, a cover plate is positioned above the corresponding position where the support platform contacts the workpiece. A driving component mounted on the support base drives the cover plate away from or towards the positioning component, covering or detaching it from the end of the workpiece away from the positioning component, thus limiting the other end of the workpiece along its length. During testing, the workpiece to be tested is placed inside the positioning component, and then the driving component places the cover plate on the workpiece. The testing liquid flows through the cover plate into the workpiece via the liquid injection assembly. After testing, the driving component detaches the cover plate from the workpiece and removes it from the positioning component. Compared to existing technologies, this application provides more convenient assembly and disassembly of the workpiece, solving the problem of inconvenient assembly and disassembly during sealing checks.

[0047] The embodiments of this application are described below with reference to the accompanying drawings.

[0048] Reference Figures 1 to 4 As shown, in some embodiments, the workpiece pressure testing device includes a support base 100, on which a support platform 200 is provided; a positioning member 210, which is provided on the support platform 200 and is used to insert the workpiece 300 to be tested; and a driving member 400, which is connected to the support base 100.

[0049] A cover plate 500 is connected to a drive member 400, which is configured to drive the cover plate 500 to move toward or away from the positioning member 210 to cover or detach from the end of the workpiece 300 to be inspected away from the positioning member 210.

[0050] The liquid injection assembly 600 is configured to inject liquid into the interior of the workpiece 300 to be tested when the cover plate 500 covers the end of the workpiece 300 away from the positioning member 210.

[0051] This embodiment provides a workpiece pressure testing device for testing the pressure resistance and sealing performance of a pressure-bearing component. The pressure-bearing component can be a pressurized water pipe. One end of the pressurized water pipe is inserted into the positioning component 210. Then, the drive component 400 drives the cover plate 500 to cover the end of the pressurized water pipe away from the end connected to the positioning component 210. The injection component 600 injects test liquid into the pressurized water pipe to test its pressure resistance and sealing performance.

[0052] Specifically, the support base 100 can be a steel frame structure or an iron frame structure, used to support the entire weight of the device, and a support platform 200 is set on the support base 100 for placing the workpiece.

[0053] The positioning element 210 is set on the support platform 200. The positioning element 210 can be a sealing ring made of rubber, which is adapted to the outer wall of the workpiece 300 to be tested, so that the workpiece 300 to be tested can be inserted into the positioning element 210, and the positioning element 210 can seal and fix one end of the workpiece 300 to be tested in the length direction, thereby sealing and fixing the workpiece 300 to be tested on the support platform 200.

[0054] After fixing one end of the workpiece 300 to be tested along its length onto the support platform 200, the end of the workpiece 300 to be tested that is away from the support platform 200 also needs to be sealed and fixed. In this embodiment, a cover plate 500 is provided. The cover plate 500 is used to connect to the end of the workpiece 300 to be tested that is away from the support platform 200. During the test, the end of the workpiece 300 to be tested that is away from the support platform 200 is sealed and fixed. When the test is completed, it is detached from the end of the workpiece 300 to be tested that is away from the support platform 200.

[0055] The drive unit 400 can be an electric telescopic rod or a pneumatic-hydraulic cylinder. The drive unit 400 is connected to the support base 100 and is located on the side opposite to the support platform 200. The drive unit 400 is also connected to the cover plate 500, providing power for the cover plate 500 to cover or detach from the workpiece 300 to be inspected, thus enabling the rapid removal of the workpiece 300 to be inspected.

[0056] The injection component 600 provides the test liquid for this embodiment. When the cover plate 500 covers the end of the workpiece 300 to be tested that is away from the positioning member 210, the injection component 600 injects the test liquid into the interior of the workpiece 300 to be tested for testing the pressure resistance and sealing performance of the workpiece 300.

[0057] The workpiece pressure testing device provided in this application comprises a support base 100, a positioning element 210, a driving element 400, a cover plate 500, and a liquid injection assembly 600. A support platform 200 is provided on the support base 100, and the positioning element 210 is provided on the support platform 200. The workpiece 300 to be tested is inserted into the positioning element 210 to seal and position one end of the workpiece 300 in the length direction. At the same time, a cover plate 500 is provided above the corresponding position where the support platform 200 contacts the workpiece 300. The driving element 400 provided on the support base 100 drives the cover plate 500 away from or towards the positioning element 210 to cover or detach the end of the workpiece 300 away from the positioning element 210, thereby sealing and limiting the other end of the workpiece 300 in the length direction. During testing, the workpiece 300 to be tested is placed inside the positioning member 210, and then the cover plate 500 is placed on the workpiece 300 by the driving member 400. The test liquid is injected into the workpiece 300 through the injection component 600 via the cover plate 500. After the test is completed, the cover plate 500 is removed from the workpiece 300 by the driving member 400 and taken out from the positioning member 210. Compared with the prior art, this application makes the disassembly and assembly of the workpiece 300 to be tested more convenient and solves the problem of inconvenient disassembly and assembly of the workpiece 300 to be tested during the sealing inspection.

[0058] Reference Figure 1 and Figure 3 As shown, in some embodiments, the positioning member 210 is provided with a mounting groove 211 (annular groove) for matching with the end of the workpiece 300 to be tested, so as to accommodate the end of the workpiece 300 to be tested.

[0059] In a specific implementation, the positioning element 210 can be a sealing ring made of rubber, with a mounting groove 211 provided on the sealing ring. That is, the cross-section of the positioning element 210 is a U-shaped structure, and the recessed part in the center of the U-shaped structure is the mounting groove 211. The mounting groove 211 is used to match the end of the workpiece 300 to be tested, so as to accommodate the end of the workpiece 300 to be tested. The mounting groove 211 is an annular groove. The side with the smaller inner diameter of the two annular surfaces forming the annular groove abuts against the inner wall of the workpiece 300 to be tested, and the side with the larger inner diameter of the two annular surfaces forming the annular groove abuts against the outer wall of the workpiece 300 to be tested. The end of the workpiece 300 to be tested facing the support platform 200 abuts against the bottom of the mounting groove 211. The workpiece 300 to be tested is inserted into the positioning element 210 to seal the end of the workpiece 300 to be tested that is in contact with the support platform 200.

[0060] Reference Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the positioning member 210 further includes a first sealing member 2111, which is disposed in the mounting groove 211 and is used to seal the gap between the mounting groove 211 and the end of the workpiece 300 to be tested.

[0061] This application also includes a second seal 510, which is disposed on the side of the cover plate 500 facing the support platform 200. The second seal 510 is used to seal the gap between the cover plate 500 and the end of the workpiece 300 to be tested facing the cover plate 500.

[0062] In this embodiment, to seal the gap between the mounting groove 211 and the end of the workpiece 300 to be tested, a first sealing element 2111 is provided. The first sealing element 2111 can be a rubber sealing gasket. The first sealing element 2111 is disposed within the mounting groove 211, that is, the first sealing element 2111 is an annular sealing gasket, placed at the bottom of the mounting groove 211 or abutting against one side of the mounting groove 211. For example, as Figure 3 As shown, the first sealing element 2111 is placed at the bottom of the mounting groove 211. The side of the first sealing element 2111 that is away from the bottom of the mounting groove 211 abuts against the workpiece 300 to be tested, thereby sealing the gap between the workpiece 300 to be tested and the mounting groove 211.

[0063] In addition, the gap between the cover plate 500 and the workpiece 300 to be inspected may be sealed. In this embodiment, a second sealing element 510 is provided. The second sealing element 510 can be a rubber sealing gasket, and can have the same structure as the first sealing element 2111. The second sealing element 510 is provided on the side of the cover plate 500 facing the support platform 200, and the side of the second sealing element 510 away from the connection with the cover plate 500 abuts against the workpiece 300 to be inspected, thereby sealing the gap between the workpiece 300 to be inspected and the cover plate 500.

[0064] Reference Figure 1 and Figure 2 As shown, in some embodiments, the driving member 400 includes a driving base 410 and a movable member 420 disposed on the driving base 410. The driving base 410 is hinged to the support base 100, and the movable member 420 is hinged to the cover plate 500. The movable member 420 moves relative to the driving base 410 to drive the cover plate 500 to move toward or away from the positioning member 210. At least two driving members 400 are provided, and at least two driving members 400 are arranged sequentially at intervals around the periphery of the cover plate 500.

[0065] In a specific implementation, the driving component 400 includes a driving base 410 and a moving component 420. The moving component 420 can move relative to the driving base 410 and is slidably connected to the driving base 410. The driving base 410 is hinged to the support base 100, and the moving component 420 is hinged to the cover plate 500. The hinge here can be a universal joint connection, so that the driving base 410 can rotate relative to the support base 100 and the moving component 420 can rotate relative to the cover plate 500.

[0066] When the drive component 400 is working, the moving component 420 slides relative to the drive base 410. The corresponding moving component 420 extends or retracts, causing the cover plate 500 to cover or detach from the end of the workpiece 300 to be tested that is away from the end connected to the positioning component 210, providing power to the cover plate 500 and enabling the quick assembly and disassembly of the workpiece 300 to be tested.

[0067] In order to achieve smooth movement of the cover plate 500, this embodiment provides at least two driving members 400. The at least two driving members 400 are arranged sequentially and at intervals around the periphery of the cover plate 500. The driving members 400 and the cover plate 500 can be inclined at 45°. The arrangement of at least two driving members 400 around the periphery of the cover plate 500 enables the cover plate 500 to move smoothly when approaching or moving away from the workpiece 300 to be inspected.

[0068] Reference Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the cover plate 500 further includes at least two guide components 520, which are disposed on the cover plate 500. The at least two guide components 520 are arranged sequentially at intervals around the periphery of the cover plate 500. The guide components 520 are used to guide the cover plate 500 to cover the end of the workpiece 300 to be tested away from the positioning member 210.

[0069] In a specific implementation, at least two guide components 520 are also provided on the cover plate 500. These guide components 520 are arranged sequentially and at intervals around the periphery of the cover plate 500. It can be understood that the cover plate 500 can be a circular flat plate and an annular plate adapted to the circular flat plate. The annular plate and the periphery of the circular flat plate facing the positioning member 210 are connected to form a cover-like structure. The inner wall of the annular plate contacts the workpiece 300 to be inspected. The guide components 520 are located on the side of the annular plate opposite to the workpiece 300 to be inspected, and are arranged sequentially and at intervals around the periphery of the annular plate. The driving member 400 is hinged to the side of the circular flat plate opposite to the mounting member 210, and is arranged sequentially and at intervals around the periphery of the circular flat plate. The driving member 400 and the guide components 520 do not interfere with each other.

[0070] When the cover plate 500 moves toward the end of the workpiece to be tested away from the positioning member 210, the guide assembly 520 contacts the outer wall of the workpiece to be tested 300, and the guide cover plate 500 covers the end of the workpiece to be tested 300 away from the positioning member 210.

[0071] Reference Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the guide assembly 520 includes a guide 521 fixed to the cover plate 500, the guide 521 being inclined in a direction away from the cover plate 500.

[0072] To achieve the guiding function of the guide assembly 520 for the cover plate 500, the guide assembly 520 includes a guide member 521, which can be a slender cuboid shape. One end of the guide member 521 in the length direction is fixed to the cover plate 500, and the end opposite to the cover plate 500 is used to contact the workpiece 300 to be tested when the cover plate 500 moves toward the positioning member 210. The guide member 521 is inclined in the direction opposite to the cover plate 500, so that the guide member 521 can slide on the outer wall of the workpiece 300 to be tested, thereby guiding the cover plate 500 toward the end of the workpiece 300 to be tested away from the positioning member 210.

[0073] Reference Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the guide assembly 520 further includes a roller 522 disposed on the side of the guide member 521 facing the cover plate 500. The roller 522 is used to abut against the outer side wall of the workpiece 300 to guide the cover plate 500 to cover the end of the workpiece 300 away from the positioning member 210.

[0074] In this embodiment, the guide member 521 slides on the outer wall of the workpiece 300 to be tested, generating significant friction that could easily damage the workpiece 300. To reduce friction, a roller 522 is provided on the guide member 521. The roller 522 is located on the side of the guide member 521 facing the cover plate 500. When the cover plate 500 moves toward the positioning member 210, the roller 522 contacts the outer wall of the workpiece 300 to be tested, guiding the cover plate 500 to cover the end of the workpiece 300 to be tested away from the positioning member 210, thus achieving the guiding function of the guide assembly 520 without damaging the workpiece 300.

[0075] Reference Figure 4 As shown, in some embodiments, at least two rollers 522 are provided on the guide member 521, and the rollers 522 are arranged sequentially at intervals along the extension direction of the guide member 521.

[0076] In order to better realize the guiding function of the guide component 520, at least two rollers 522 are provided on each guide component 521 in this embodiment. When the cover plate 500 moves towards the positioning component 210, the rollers 522 are in contact with the workpiece 300 to be tested by the guide component 520, thus realizing the guiding function of the guide component 520.

[0077] Reference Figure 1 and Figure 2 As shown, in some embodiments, the liquid injection assembly 600 includes a first liquid injection tube 610 and a second liquid injection tube 620 connected to the first liquid injection tube 610. The first liquid injection tube 610 is slidably connected to the support base 100, and the second liquid injection tube 620 is disposed on the cover plate 500. The second liquid injection tube 620 is configured to guide the liquid injected by the first liquid injection tube 610 into the workpiece 300 to be tested.

[0078] After the cover plate 500 and the positioning member 210 fix and seal the workpiece 300 to be tested on the support platform 200, a testing liquid needs to be injected into the workpiece 300. The liquid injection assembly 600 provided in this embodiment includes a first liquid injection tube 610 and a second liquid injection tube 620. The first liquid injection tube 610 is connected to the second liquid injection tube 620, and the first liquid injection tube 610 is slidably connected to the support base 100. The second liquid injection tube 620 is disposed on the cover plate 500. In order to ensure the sealing performance of this embodiment, a sealing gasket can be provided at the connection between the first liquid injection tube 610 and the second liquid injection tube 620. The sealing gasket is sleeved on the end of the second liquid injection tube 620 away from the cover plate 500, and the side of the sealing gasket away from the second liquid injection tube 620 abuts against the first liquid injection tube 610.

[0079] After the cover plate 500 is placed on the end of the workpiece to be tested that is away from the positioning component, the test liquid flows into the second injection pipe 620 through the first injection pipe 610, and then into the workpiece to be tested 300 through the cover plate 500, so as to test the sealing and pressure resistance of the workpiece to be tested 300.

[0080] Reference Figure 1 and Figure 2 As shown, in some embodiments, the support base 100 includes a base 110 and a support frame 120 disposed on the base 110. The drive member 400 and the liquid injection assembly 600 are both disposed on the support frame 120. The support platform 200 is disposed on the base 110 and is located within the area enclosed by the support frame 120. The support platform 200 is provided with a drain valve 130 and a drain hole 140, and the drain hole 140 is located within the area enclosed by the positioning member 210. The drain valve 130 is used to open or close the drain hole 140.

[0081] In a specific implementation, the support base 100 of this embodiment includes a base 110 and a support frame 120 disposed on the base 110. The base 110 is used to support the entire weight of this embodiment. The support frame 120 can be a steel frame structure. The driving member 400 is disposed on the side of the support frame 120 facing the base 110, and a through hole is opened on the support frame 120 at a position corresponding to the cover plate 500. The first injection tube 610 is inserted into the through hole. The first injection tube 610 can slide relative to the through hole. It can be understood that when the driving member 400 drives the cover plate 500 to move closer to or further away from the positioning member 210, the first injection tube 610 slides relative to the support frame 120 to satisfy the movement of the cover plate 500.

[0082] In this embodiment, the support platform 200 is mounted on the base 110. The support platform 200 is equipped with a drain valve 130, and the drain hole 140 is located within the area enclosed by the positioning member 210. When the test liquid flows into the workpiece 300 to begin testing, the drain valve 130 is closed, meaning the drain hole 140 is closed. The test liquid can fill the workpiece 300 to perform a test on its sealing and pressure resistance. After the test liquid has completed the test on the workpiece 300, the drain valve 130 is turned to open the drain hole 140 and drain the test liquid from the workpiece 300, thus completing the test on the pressure resistance and sealing of the workpiece 300.

[0083] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pressure testing device for tubular pressure-bearing workpieces, characterized in that, include: Support base (100), on which a support platform (200) is provided; Positioning element (210), the positioning element (210) is disposed on the support platform (200), and the positioning element (210) is used to insert the workpiece (300) to be tested. A driving element (400) is connected to the support base (100); A cover plate (500) is connected to the drive member (400), the drive member (400) being configured to drive the cover plate (500) to move toward or away from the positioning member (210) to cover or detach from the end of the workpiece (300) to be inspected away from the positioning member (210). Liquid injection assembly (600) is configured to inject liquid into the interior of the workpiece (300) to be tested when the cover plate (500) covers the end of the workpiece (300) opposite to the positioning member (210).

2. The pressure testing device for tubular pressure-bearing workpieces according to claim 1, characterized in that, The positioning member (210) is provided with a mounting groove (211) (annular groove), which is used to match the end of the workpiece (300) to be tested, so as to accommodate the end of the workpiece (300) to be tested.

3. The pressure testing device for tubular pressure-bearing workpieces according to claim 2, characterized in that, It also includes a first seal (2111), which is disposed in the mounting groove (211) and is used to seal the gap between the mounting groove (211) and the end of the workpiece (300) to be tested; And / or, it also includes a second seal (510) disposed on the side of the cover plate (500) facing the support platform (200), the second seal (510) being used to seal the gap between the cover plate (500) and the end of the workpiece to be tested (300) facing the cover plate (500).

4. The pressure testing device for tubular pressure-bearing workpieces according to claim 1, characterized in that, The drive unit (400) includes a drive seat (410) and a movable member (420) disposed on the drive seat (410). The drive seat (410) is hinged to the support seat (100), and the movable member (420) is hinged to the cover plate (500). The movable member (420) moves relative to the drive seat (410) to drive the cover plate (500) to move toward or away from the positioning member (210). At least two drive members (400) are provided, and at least two drive members (400) are arranged sequentially at intervals around the periphery of the cover plate (500).

5. The pressure testing device for tubular pressure-bearing workpieces according to claim 1, characterized in that, It also includes at least two guide components (520), which are disposed on the cover plate (500). The at least two guide components (520) are arranged sequentially at intervals around the periphery of the cover plate (500). The guide components (520) are used to guide the cover plate (500) to cover the end of the workpiece (300) to be inspected away from the positioning member (210).

6. The pressure testing device for tubular pressure-bearing workpieces according to claim 5, characterized in that, The guide assembly (520) includes a guide (521) which is fixed to the cover plate (500) and is inclined in a direction away from the cover plate (500).

7. The pressure testing device for tubular pressure-bearing workpieces according to claim 6, characterized in that, The guide assembly (520) further includes a roller (522) disposed on the side of the guide member (521) facing the cover plate (500). The roller (522) is used to abut against the outer wall of the workpiece to be inspected (300) to guide the cover plate (500) to cover the end of the workpiece to be inspected (300) away from the positioning member (210).

8. The pressure testing device for tubular pressure-bearing workpieces according to claim 7, characterized in that, At least two rollers (522) are provided on the guide member (521), and the rollers (522) are arranged at intervals along the extension direction of the guide member (521).

9. The pressure testing device for tubular pressure-bearing workpieces according to any one of claims 1-8, characterized in that, The liquid injection assembly (600) includes a first liquid injection tube (610) and a second liquid injection tube (620) connected to the first liquid injection tube (610). The first liquid injection tube (610) is slidably connected to the support base (100). The second liquid injection tube (620) is disposed on the cover plate (500). The second liquid injection tube (620) is configured to guide the liquid injected by the first liquid injection tube (610) into the workpiece (300) to be tested.

10. The pressure testing device for tubular pressure-bearing workpieces according to any one of claims 1-8, characterized in that, The support base (100) includes a base (110) and a support frame (120) disposed on the base (110). The drive unit (400) and the liquid injection assembly (600) are both disposed on the support frame (120). The support platform (200) is disposed on the base (110) and the support platform (200) is located within the area enclosed by the support frame (120). The support platform (200) is provided with a drain valve (130) and a drain hole (140), and the drain hole (140) is located in the area enclosed by the positioning member (210). The drain valve (130) is used to open or close the drain hole (140).

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