CN219348081U - Valve test device - Google Patents
Valve test device Download PDFInfo
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- CN219348081U CN219348081U CN202320747999.0U CN202320747999U CN219348081U CN 219348081 U CN219348081 U CN 219348081U CN 202320747999 U CN202320747999 U CN 202320747999U CN 219348081 U CN219348081 U CN 219348081U
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- bearing seat
- fixing plate
- valve
- pressure bearing
- screw rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The application discloses valve test device includes: the fixing plate comprises a front fixing plate and a rear fixing plate which are arranged in parallel; the pull rod is used for connecting the front fixing plate and the rear fixing plate and comprises a lower pull rod positioned at the lower part of the fixing plate, and a guide rail is arranged on the lower pull rod; the screw rod penetrates through the rear fixing plate and is in threaded connection with the rear fixing plate; the pressure bearing seat comprises a movable pressure bearing seat and a fixed pressure bearing seat, the movable pressure bearing seat is rotationally connected with the end part of the screw rod, which is away from the manual rotary rod, and the fixed pressure bearing seat is arranged on the front fixed plate, and the movable pressure bearing seat is arranged on the guide rail in a sliding way; the liquid pressurizing system is communicated with the test valve and is used for providing liquid pressure for the test valve; the movable pressure bearing seat is provided with a gas-water output channel communicated with the test valve, the fixed pressure bearing seat is provided with a gas-water input channel, and the gas-water input channel is communicated with the liquid pressurizing system. Therefore, the valve test device adopting the mode is simple in structure, convenient to operate and high in detection efficiency.
Description
Technical Field
The application relates to the technical field of valve tests, in particular to a valve test device.
Background
Valves are devices used in fluid systems to control the direction, pressure, and flow of a fluid. The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. Obviously, the valve is one of important components in the fluid system, and the use state of the valve directly influences whether the fluid system can normally operate, so that pressure test should be carried out on each valve before leaving the factory.
Most of the existing test equipment is complex in structure, complex in operation, incapable of rapidly, effectively and intuitively detecting the tightness of the valve, and low in working efficiency. Therefore, how to design a valve test device with simple structure, convenient operation and high detection efficiency is a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
The purpose of this application is to provide a valve test device, and the device drives movable pressure-bearing seat motion through the lead screw to easily realize the tight of supporting of test valve, and carry out pressure detection to test valve through liquid booster system, simple structure, convenient operation, and detection efficiency is high.
To achieve the above object, the present application provides a valve test apparatus, including:
the fixing plate comprises a front fixing plate and a rear fixing plate which are arranged in parallel;
the pull rod is used for connecting the front fixing plate and the rear fixing plate and comprises a lower pull rod positioned at the lower part of the fixing plate, and a guide rail is arranged on the lower pull rod;
the screw rod penetrates through the rear fixing plate and is in threaded connection with the rear fixing plate, one end of the screw rod is positioned between the front fixing plate and the rear fixing plate, and a manual rotating rod is arranged at the other end of the screw rod;
the pressure bearing seat comprises a movable pressure bearing seat and a fixed pressure bearing seat, the movable pressure bearing seat is rotationally connected with the end part of the screw rod, which is away from the end part of the manual rotary rod, and the fixed pressure bearing seat is arranged on the front fixed plate, the movable pressure bearing seat is arranged on the guide rail in a sliding manner and corresponds to the height of the fixed pressure bearing seat, and the movable pressure bearing seat moves towards or away from the fixed pressure bearing seat and is used for clamping or loosening the test valve;
the liquid pressurizing system is communicated with the test valve and is used for providing liquid pressure for the test valve;
the movable pressure bearing seat is provided with a gas-water output channel communicated with the test valve, the fixed pressure bearing seat is provided with a gas-water input channel, and the gas-water input channel is communicated with the liquid pressurizing system.
Preferably, the liquid pressurizing system comprises a water tank and a gas-liquid pressurizing pump for conveying liquid in the water tank to a gas-water input channel, and a pressure gauge for detecting the pressure of an output end of the gas-liquid pressurizing pump is arranged on the gas-liquid pressurizing pump.
Preferably, a threaded component is arranged on the rear fixing plate, and the screw rod penetrates through the threaded component and is in threaded connection with the threaded component.
Preferably, the screw assembly comprises a copper nut jacket fixedly arranged on the rear fixing plate and a copper nut sleeved in the copper nut jacket, and the screw rod is in threaded connection with the copper nut.
Preferably, the pull rod further comprises an upper pull rod positioned at the upper part of the fixed plate, and the upper pull rod and the lower pull rod are matched with the front fixed plate and the rear fixed plate to form a stable frame structure.
Preferably, the end part of the screw rod extends into the movable pressure bearing seat, a limiting groove is formed in the periphery of the screw rod, a half-moon ring clamped with the limiting groove is arranged on the end face, facing the screw rod, of the movable pressure bearing seat, and the half-moon ring is used for limiting the axial direction of the screw rod.
Preferably, a rear top cone sleeve is arranged on the end face of the movable pressure bearing seat facing the fixed pressure bearing seat, a front top cone sleeve is arranged on the end face of the fixed pressure bearing seat facing the movable pressure bearing seat, and the rear top cone sleeve and the front top cone sleeve are respectively used for propping up two opening ends of the test valve.
Preferably, a sealing ring which is sealed with the open end is arranged on the end face of the rear tip cone sleeve facing the test valve and the end face of the front tip cone sleeve facing the test valve.
Preferably, the bottom of the movable pressure bearing seat is provided with rollers rolling along the guide rail.
Preferably, the guide rail is provided with a roller groove, the roller rolls in the roller groove and is used for limiting the roller to move along the direction facing to or away from the fixed pressure bearing seat.
For above-mentioned background art, this application forms stable braced frame through fixed plate and pull rod, is provided with the lead screw with its threaded connection on the back fixed plate, and the lead screw tip is provided with the movable pressure-bearing seat of rotating connection with it, and the movable pressure-bearing seat slides along the guide rail, thereby rotates the lead screw and drives the sliding pressure-bearing seat and face fixed pressure-bearing seat motion to press from both sides tight and seal the test valve between movable pressure-bearing seat and fixed pressure-bearing seat, easy operation is convenient.
In addition, a gas-water output channel communicated with the test valve is arranged on the movable pressure-bearing seat, a gas-water input channel communicated with a liquid pressurizing system is arranged on the fixed pressure-bearing seat, and liquid pressure is provided for the test valve through the liquid pressurizing system; specifically, the liquid pressurizing system firstly introduces liquid into the test valve, and exhausts the gas in the test valve through the gas-water output channel, then turns off the test valve, so that the liquid pressurizing system keeps a certain pressure, and keeps for 30 minutes, and whether the position of the test valve filling material, the position of the sealing gasket and the like leak or not is checked, and whether the gas-water output channel has liquid drops or not is checked. If no leakage or liquid drop is found, the pressure of the liquid pressurizing system is not reduced, and the test valve is qualified. The test device adopting the mode has the advantages of simple structure, convenient operation and high detection efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a front structure of a valve test device according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B;
FIG. 4 is an enlarged schematic view of FIG. 1 at C;
FIG. 5 is a top view of a valve test apparatus according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of another arrangement mode of a guide rail of a valve test device according to an embodiment of the present application.
In the figure: 1. the device comprises a rear fixing plate 2, a screw rod 3, a copper nut jacket 4, a copper nut 5, a manual rotary rod 6, an upper pull rod 7, a movable pressure-bearing seat 8, a gas-water output channel 9, a rear tip cone sleeve 10, a test valve 11, a front tip cone sleeve 12, a fixed pressure-bearing seat 13, a bracket 14, a water tank 15, a pressure gauge 16, a liquid pressurizing system 17, a gas-liquid pressurizing pump 18, a gas-water input channel 19, a front fixing plate 20, a lower pull rod 21, rollers 22, guide rails 23, a limiting groove 24, a half moon ring 25 and a sealing ring.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In order to better understand the aspects of the present application, a further detailed description of the present application will be provided below with reference to the accompanying drawings and detailed description.
It should be noted that, in the present embodiment, the orientation or positional relationship indicated by "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplification of the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 6, in the present embodiment, there is provided a valve testing apparatus comprising a fixing plate as a main bearing member of the apparatus, a tie rod, a screw rod 2, a pressure-bearing seat and a liquid pressurizing system 16, which comprises two front fixing plates 19 and a rear fixing plate 1 arranged in parallel in an arc shape, and which is placed on a bottom surface or a test stand by the front and rear fixing plates. The front fixing plate 19 and the rear fixing plate 1 are respectively connected to two ends of the pull rod, as shown in fig. 1, the two ends of the pull rod can be locked and fixed through nuts, so that the fixing plate and the pull rod form a stable supporting structure.
The pull rod comprises a lower pull rod 20 positioned at the lower part of the fixing plate, and a guide rail 22 is arranged on the lower pull rod 20, and the arrangement mode of the pull rod comprises a rod type structure, but is not limited to a plate type or other type structure. Of course, the tie rod may be a column or a rectangular parallelepiped, without being excessively limited thereto.
For the above-mentioned guide rail 22, the main purpose is to assist the movement of the movable bearing seat 7, so that the guide rail 22 may be disposed along the length direction of the lower pull rod 20 in the case that the test valve 10 needs to be clamped, so that the movable bearing seat 7 moves toward or away from the fixed bearing seat 12.
In addition, be provided with lead screw 2 on back fixed plate 1, lead screw 2 runs through back fixed plate 1 and threaded connection with it, forms the connected mode of nut screw rod, and after the rotation lead screw 2, under the screw drive, lead screw 2 can follow its axial motion. One end of the screw rod 2 is positioned between the front fixing plate 19 and the rear fixing plate 1 and is used for connecting the movable pressure-bearing seat 7; the other end is provided with a manual rotary rod 5, so that the screw rod 2 can be screwed manually.
For the connection mode of the screw rod 2 and the movable pressure-bearing seat 7, the movable pressure-bearing seat 7 is arranged at the end part of the screw rod 2, which is far away from the manual rotary rod 5, and the screw rod 2 and the movable pressure-bearing seat are in rotary connection, namely, the movable pressure-bearing seat 7 is also positioned between the front fixed plate 19 and the rear fixed plate 1, and the fixed pressure-bearing seat 12 is arranged on the front fixed plate 19 and corresponds to the rear fixed plate 1 in height, so that the movable pressure-bearing seat 7 and the fixed pressure-bearing seat 12 can stably clamp the test valve 10.
The liquid pressurization system 16 is communicated with the test valve 10, and can provide liquid pressure for the test valve 10; specifically, the movable pressure-bearing seat 7 is provided with a gas-water output channel 8 communicated with the test valve 10, the fixed pressure-bearing seat 12 is provided with a gas-water input channel 18, the gas-water input channel 18 is communicated with the liquid pressurizing system 16, and the liquid of the liquid pressurizing system 16 enters the test valve 10 through the gas-water input channel and is discharged out of the device through the gas-water output channel 8.
In summary, the above embodiment forms a stable supporting frame through the fixed plate and the pull rod, the screw rod 2 in threaded connection with the screw rod is arranged on the rear fixed plate 1, the movable bearing seat 7 in rotary connection with the screw rod 2 is arranged at the end part of the screw rod, the movable bearing seat 7 slides along the guide rail 22, the screw rod 2 is rotated to drive the sliding bearing seat to move towards the fixed bearing seat 12, and therefore the test valve 10 is clamped and sealed between the movable bearing seat 7 and the fixed bearing seat 12, and the operation is simple and convenient.
Further, a gas-water output channel 8 communicated with the test valve 10 is arranged on the movable pressure-bearing seat 7, a gas-water input channel 18 communicated with a liquid pressurizing system 16 is arranged on the fixed pressure-bearing seat 12, and liquid pressure is provided for the test valve 10 through the liquid pressurizing system 16; specifically, the liquid pressurization system 16 firstly introduces liquid into the test valve 10, and exhausts the gas in the test valve through the gas-water output channel 8, and then turns off the test valve 10, so that the liquid pressurization system 16 keeps a certain pressure for 30 minutes, and checks whether the filling position, the sealing gasket and the like of the test valve 10 leak, and checks whether the gas-water output channel 8 has liquid drops. If no leakage or droplets are found and the pressure of the liquid pressurization system 16 is not reduced, the test valve 10 is qualified. The test device adopting the mode has the advantages of simple structure, convenient operation and high detection efficiency.
The liquid pressurizing system 16 comprises a water tank 14 and a gas-liquid pressurizing pump 17 for conveying liquid in the water tank 14 to a gas-water input channel 18, and a pressure gauge 15 for detecting the pressure of an output end of the gas-liquid pressurizing pump 17 is arranged on the gas-liquid pressurizing pump 17; specifically, the gas-liquid booster pump 17 is usually provided with a compressed air inlet, and when the output end of the gas-liquid booster pump 17 is turned off, the compressed air can provide quantitative pressure for the output end of the gas-liquid booster pump 17, in this embodiment, when the test valve 10 is turned on, the liquid flows from the test valve 10 to the gas-water output channel 8 to be discharged, and the pressure gauge 15 reads zero. After 1 minute, the air of the pipeline is exhausted, the hand wheel of the test valve 10 is rotated, and the test valve 10 is turned off. And (3) regulating a regulating valve of the liquid pressurizing system 16, immediately rising the reading of the pressure gauge 15, stopping regulating the pressure when the reading reaches the required pressure value, and maintaining the pressure for 30 minutes. In the pressure maintaining process, whether the test valve 10 leaks or not is checked, and whether the air-water output channel 8 has liquid drops or not is checked. If no leakage or liquid drop is found, the pressure gauge 15 is not depressurized, and the valve is qualified.
The liquid pressurizing system 16 may be disposed on the front fixing plate 19 through the bracket 13, or placed at other positions, where no excessive limitation is made, so that stable disposition thereof is ensured.
In addition, a screw assembly is provided on the rear fixing plate 1, and the screw rod 2 penetrates through the screw assembly and is in screw connection with the screw assembly, so that the screw rod 2 moves along the axial direction of the screw rod 2 while rotating. Of course, the screw rod 2 can also be driven by a hydraulic rod or other manners, so as to drive the movable pressure-bearing seat 7 to stably move forwards, which is not limited too much and falls into the protection scope of the application.
On the basis of the screw assembly, the screw assembly comprises a copper nut jacket 3 fixedly arranged on the rear fixing plate 1 and a copper nut 4 sleeved in the copper nut jacket 3, and the screw rod 2 is in threaded connection with the copper nut 4; of course, the rear fixing plate 1 may be directly provided with an internal threaded hole, and the screw rod 2 is directly screwed with the internal threaded hole, so that the axial driving effect can be achieved.
In order to enable the fixing plate to stably support the device, the pull rod further comprises an upper pull rod 6 positioned at the upper portion of the fixing plate, and the upper pull rod 6 is arranged in a similar manner to the lower pull rod 20, which will not be described in detail. The number of the upper tie rods 6 and the lower tie rods 20 may be plural, and the fixing plate may be secured to be stably connected.
Because the screw rod 2 needs to rotate to realize the axial movement, in order to keep the moving stability of the movable pressure-bearing seat 7, the end part of the screw rod 2 extends into the movable pressure-bearing seat 7, and a limiting groove 23 is formed in the periphery of the screw rod 2, as shown in fig. 3, a half-moon ring 24 clamped with the limiting groove 23 is arranged on the end surface of the movable pressure-bearing seat 7 facing the screw rod 2, and the half-moon ring 24 is used for axially limiting the screw rod 2 and does not influence the rotating effect of the screw rod 2; specifically, the inner diameter of the half-moon ring 24 can be set larger, and certainly cannot exceed the outer diameter of the screw rod 2, so that the half-moon ring can be clamped in the limiting groove 23, and the contact between the inner wall of the half-moon ring 24 and the outer wall of the limiting groove 23 is reduced, thereby avoiding affecting the rotation of the screw rod 2.
The end face of the movable bearing seat 7 facing the fixed bearing seat 12 is provided with a rear tip cone sleeve 9, the end face of the fixed bearing seat 12 facing the movable bearing seat 7 is provided with a front tip cone sleeve 11, and the rear tip cone sleeve 9 and the front tip cone sleeve 11 are respectively used for propping up two open ends of the test valve 10, so that the tightness and the stability of the test valve 10 are ensured. The end face structure of the tip cone sleeve can be arranged according to the external structure of the opening end of the test valve 10, so that complete matching can be ensured. In addition, as shown in fig. 4, sealing rings 25 may be further provided on the end surfaces of the front tip cone sleeve 11 and the rear tip cone sleeve 9, so as to improve the connection tightness with the test valve 10.
On the basis of the above embodiment, in order to facilitate the sliding of the movable pressure-bearing seat 7, a slider and a roller 21 matched with the guide rail 22 may be disposed at the bottom of the movable pressure-bearing seat 7, so as to ensure that the movable pressure-bearing seat 7 stably moves forward. Since the slider is usually provided integrally with the guide rail 22, it may be inconvenient for the later disassembly and maintenance of the movable pressure-bearing block, and therefore, in this embodiment, it is preferable to provide the slider by means of the roller 21.
In order to match the roller 21, a roller groove may be provided on the guide rail 22, in which the roller 21 rolls, and the roller 21 can be limited to move in a direction facing or away from the fixed bearing seat 12.
In addition, as shown in fig. 6, the guide rail 22 may be a groove-shaped guide rail, where the groove-shaped guide rail is U-shaped, and the roller 21 is located in the groove-shaped guide rail, so that the movable bearing seat 7 can be further limited in the vertical direction, and the running of the movable bearing seat is more stable. Of course, in order to satisfy the rolling effect of the roller 21, the friction between the roller 21 and the groove-shaped guide rail is reduced, and a certain gap may be left between the roller 21 and the upper wall of the groove-shaped guide rail to prevent the roller 21 from sliding in the groove-shaped guide rail. The roller 21 may be a small wheel, a bearing, or the like, and the movement of the movable bearing 7 along the guide rail 22 may be achieved by the rotation of the roller 21, which is not limited thereto.
In the use process of the screw rod type movable pressure-bearing seat, the manual rotary rod 5 is rotated first, and the screw rod 2 pushes the movable pressure-bearing seat 7 to move forwards along the guide rail 22. The test valve 10 is arranged between the front top cone sleeve 11 and the rear top cone sleeve 9, the inlet end is propped against the front top cone sleeve 11, the outlet end is propped against the rear top cone sleeve 9, and the manual rotary rod 5 is continuously rotated until the test valve 10 is clamped, and the valve is in a full-open state at the moment.
Compressed air enters the liquid pressurizing system 16 again, liquid is introduced into the test valve 10 through the gas-liquid pressurizing pump 17, and the liquid flows out of the gas-water input channel 18 through the rear top taper sleeve 9, and the reading of the pressure gauge 15 is zero. After 1 minute, the air was exhausted from the pipeline.
And rotating the hand wheel of the test valve 10 to turn off the test valve 10. And the regulating valve of the liquid pressurizing system 16 is regulated, the reading of the pressure gauge 15 rises immediately, and when the required pressure value is reached, the pressure regulation is stopped. And maintained for 30 minutes.
In the pressure maintaining process, the positions of the valve packing and the winding pad are checked for leakage, and the gas-water output channel 8 is checked for liquid drops. If no leakage or liquid drop is found, the pressure gauge 15 does not reduce the pressure, and the valve test is qualified.
After the test is completed, the valve hand wheel is rotated anticlockwise, the test valve 10 is conducted, and the reading of the pressure gauge 15 is zero. The manual rotary rod 5 is rotated, the screw rod 2 pulls the movable pressure-bearing seat 7 to move backwards along the guide rail 22, and the clamped test valve 10 is loosened. And the test valve 10 is disassembled, and the inner and outer effusion is dried completely, so that the whole test process is completed.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
Claims (10)
1. A valve testing apparatus, comprising:
the fixing plate comprises a front fixing plate and a rear fixing plate which are arranged in parallel;
the pull rod is used for connecting the front fixing plate and the rear fixing plate and comprises a lower pull rod positioned at the lower part of the fixing plate, and a guide rail is arranged on the lower pull rod;
the screw rod penetrates through the rear fixing plate and is in threaded connection with the rear fixing plate, one end of the screw rod is positioned between the front fixing plate and the rear fixing plate, and a manual rotating rod is arranged at the other end of the screw rod;
the pressure bearing seat comprises a movable pressure bearing seat and a fixed pressure bearing seat, the movable pressure bearing seat is rotationally connected with the end part of the screw rod, which is away from the end part of the manual rotary rod, and the fixed pressure bearing seat is arranged on the front fixed plate, the movable pressure bearing seat is arranged on the guide rail in a sliding manner and corresponds to the height of the fixed pressure bearing seat, and the movable pressure bearing seat moves towards or away from the fixed pressure bearing seat and is used for clamping or loosening the test valve;
the liquid pressurizing system is communicated with the test valve and is used for providing liquid pressure for the test valve;
the movable pressure bearing seat is provided with a gas-water output channel communicated with the test valve, the fixed pressure bearing seat is provided with a gas-water input channel, and the gas-water input channel is communicated with the liquid pressurizing system.
2. The valve test device according to claim 1, wherein the liquid pressurization system comprises a water tank and a gas-liquid booster pump for conveying the liquid in the water tank to a gas-water input channel, and a pressure gauge for detecting the pressure of an output end of the gas-liquid booster pump is arranged on the gas-liquid booster pump.
3. The valve testing apparatus of claim 2, wherein the rear fixing plate is provided with a screw assembly, and the screw rod penetrates through the screw assembly and is in threaded connection with the screw assembly.
4. A valve testing apparatus according to claim 3, wherein the screw assembly comprises a copper nut housing fixedly provided on the rear fixing plate and a copper nut sleeved in the copper nut housing, and the screw rod is screw-connected with the copper nut.
5. A valve testing apparatus according to claim 3, wherein the tie rod further comprises an upper tie rod located at an upper portion of the fixed plate, the upper tie rod and the lower tie rod both cooperating with the front fixed plate and the rear fixed plate to form a stable frame structure.
6. The valve testing device according to any one of claims 1-5, wherein the end portion of the screw rod extends into the movable bearing seat, a limiting groove is formed in the periphery of the screw rod, a half-moon ring clamped with the limiting groove is arranged on the end face, facing the screw rod, of the movable bearing seat, and the half-moon ring is used for axially limiting the screw rod.
7. The valve testing device according to claim 6, wherein a rear tip cone sleeve is arranged on an end face of the movable bearing seat facing the fixed bearing seat, a front tip cone sleeve is arranged on an end face of the fixed bearing seat facing the movable bearing seat, and the rear tip cone sleeve and the front tip cone sleeve are respectively used for propping up two opening ends of the test valve.
8. The valve testing apparatus of claim 7, wherein a sealing ring sealing the open end is provided on an end face of the rear tip cone sleeve facing the test valve and an end face of the front tip cone sleeve facing the test valve.
9. The valve testing apparatus of claim 6, wherein the movable bearing seat bottom is provided with rollers that roll along the guide rail.
10. The valve testing apparatus of claim 9, wherein the guide rail is provided with a roller groove, the roller rolls in the roller groove, and the roller is used for limiting the movement of the roller in a direction facing or away from the fixed bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320747999.0U CN219348081U (en) | 2023-04-07 | 2023-04-07 | Valve test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320747999.0U CN219348081U (en) | 2023-04-07 | 2023-04-07 | Valve test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219348081U true CN219348081U (en) | 2023-07-14 |
Family
ID=87106090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320747999.0U Active CN219348081U (en) | 2023-04-07 | 2023-04-07 | Valve test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219348081U (en) |
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2023
- 2023-04-07 CN CN202320747999.0U patent/CN219348081U/en active Active
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