CN217505134U - Sealing test device of bellows - Google Patents
Sealing test device of bellows Download PDFInfo
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- CN217505134U CN217505134U CN202221619840.2U CN202221619840U CN217505134U CN 217505134 U CN217505134 U CN 217505134U CN 202221619840 U CN202221619840 U CN 202221619840U CN 217505134 U CN217505134 U CN 217505134U
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Abstract
The utility model discloses a sealing test device of bellows uses at bellows detection technology field, to the sealed problem that the effect is poor, efficiency of software testing is low, the test result has the error in bellows both ends, and its technical scheme main points are: comprises a workbench; the clamping devices are arranged on the workbench and used for vertically clamping the corrugated pipe on the workbench, the two groups of clamping devices are symmetrically arranged on the side surface of the corrugated pipe along the radial direction of the corrugated pipe, and one opposite sides of the two groups of clamping devices are attached to the outer side of the corrugated pipe; the inflatable sealing assembly is used for sealing the upper port and the lower port of the corrugated pipe and comprises a vertical inflatable shaft arranged at the lower end of the corrugated pipe and a top cover sealing device arranged at the upper end of the corrugated pipe; the sealing test assembly is arranged above the corrugated pipe and used for testing the sealing performance of the corrugated pipe; the bellows sealing device has the advantages that the sealing performance of the bellows can be rapidly measured, the sealing effect of the two ends of the bellows is good, and the test result is accurate.
Description
Technical Field
The utility model relates to a bellows detects technical field, and more specifically says that it relates to a seal test device of bellows.
Background
The sealing performance of the corrugated pipe needs to be detected during production, and the existing corrugated pipe sealing test method generally comprises the steps of sealing two ends of the corrugated pipe to form a sealed cavity inside the corrugated pipe, placing the corrugated pipe in water after pressurization in the sealed cavity, and judging whether a pipe body leaks according to bubbles, so that the purpose of detecting whether the corrugated pipe has a leakage defect is achieved.
The existing test tool mainly seals two ends of a corrugated pipe through a sealing ring, the sealing effect is general, and after the interior of the corrugated pipe is pressurized, the sealing ring is possibly leaked, so that the test result is influenced; in addition, the corrugated pipe is placed in water for measurement, the tool structure is complex, the number of steps is large, the corrugated pipe needs to be dried after the test is finished, and the corrugated pipe testing and processing efficiency is reduced; therefore, a sealing test device for the corrugated pipe needs to be provided, the sealing performance of the corrugated pipe can be rapidly measured, the sealing effect of the two ends of the corrugated pipe is good, and the test result is accurate.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a sealing test device of bellows, its advantage is sealed effectual at bellows both ends, and the test result is accurate, and efficiency of software testing is high.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a seal testing apparatus for corrugated pipes, comprising:
a work table;
the clamping devices are arranged on the workbench and used for vertically clamping the corrugated pipe on the workbench, the two groups of clamping devices are symmetrically arranged on the side surface of the corrugated pipe along the radial direction of the corrugated pipe, and one opposite sides of the two groups of clamping devices are attached to the outer side of the corrugated pipe;
the inflatable sealing assembly is arranged at two ends of the length direction of the corrugated pipe and used for sealing an upper port and a lower port of the corrugated pipe, the inflatable sealing assembly comprises a vertical inflatable shaft arranged at the lower end of the corrugated pipe and a top cover sealing device arranged at the upper end of the corrugated pipe, and the outer side of the inflatable shaft is attached to the inner side of the corrugated pipe;
and the sealing test assembly is arranged above the corrugated pipe and used for testing the sealing property of the corrugated pipe.
Through the technical scheme, the clamping device can clamp and fix the corrugated pipe, so that the corrugated pipe is stable and does not shake in the test process; the inflatable shaft is arranged at the lower end of the corrugated pipe, so that the lower end of the corrugated pipe can be plugged, and the inflatable shaft can be more tightly attached to the corrugated pipe after being inflated, so that the corrugated pipe is stably supported on the inflatable shaft; after the top cover sealing device plugs the upper end of the corrugated pipe, a sealed cavity is formed inside the corrugated pipe, the sealing performance of the corrugated pipe is tested through the sealing test assembly, the test result is accurate, and the error is small.
Further, sealed test assembly including set up in the first intake pipe of bellows top, set up in first manometer in the first intake pipe and set up in the air compressor of first intake pipe tip, the inside of bellows is stretched into from the upper end of bellows to the one end that air compressor was kept away from to first intake pipe.
The pressure control device has the advantages that compressed air output by the air compressor enters the corrugated pipe through the first air inlet pipe, the air compressor stops conveying the compressed air after the corrugated pipe is filled with gas, the numerical value on the first pressure gauge is observed, if the numerical value on the first pressure gauge can be stably maintained for more than fifteen minutes, the sealing performance of the corrugated pipe meets the requirement, otherwise, the corrugated pipe leaks, and the sealing performance does not meet the requirement; the sealing performance that can measure the bellows need not to place the bellows in aqueous to this scheme, and inspection efficiency is high, the step is few.
Furthermore, the top cover sealing device comprises an end cover arranged at the upper end of the corrugated pipe and an inflatable sealing ring arranged on the inner side of the end cover, the upper end of the corrugated pipe is attached to the top of the end cover, and the inner side of the end cover is attached to the outer side of the corrugated pipe;
an outwardly-recessed annular groove is formed in the inner side of the end cover, the inflatable sealing ring is arranged in the annular groove, and an air inlet hole for a first air inlet pipe to penetrate through is formed in the middle of the end cover;
the outer side of the inflatable sealing ring is attached to the outer side of the corrugated pipe, a first air cavity is arranged inside the inflatable sealing ring, a first air hole is formed in the upper side of the inflatable sealing ring, a second air inlet pipe is arranged on the first air hole, and one end, far away from the first air hole, of the second air inlet pipe is communicated with the output end of the air compressor; the first air hole is communicated with the first air cavity; and a three-way valve is arranged at the joint of the output end of the air compressor and the first air inlet pipe and the second air inlet pipe.
The sealing structure has the beneficial effects that the end cover is internally provided with the inflatable sealing ring, and the inflatable sealing ring is inflated by the air compressor, so that the inflatable sealing ring is tightly attached to the surface of the corrugated pipe, and the upper end of the corrugated pipe is ensured to be sealed; first intake pipe and first intake pipe pass through the output of three-way valve connection same air compressor, can control compressed air's flow direction through opening and close of adjusting the three-way valve, simple structure, regulation convenience.
Furthermore, an air nozzle is arranged on one side of the inflatable shaft, a second air cavity is arranged inside the inflatable shaft, a plurality of movable key strips capable of protruding out of the surface of the inflatable shaft are arranged on the outer peripheral surface of the inflatable shaft, and one ends of the movable key strips and the air nozzle, which are close to the inside of the inflatable shaft, are communicated with the second air cavity; the position that the physiosis axle laminated bellows lower extreme is provided with the seal groove of undercut, and the lower extreme embedding of bellows is in the seal groove, be provided with seal gasket in the seal groove.
The air inflation device has the advantages that the high-pressure air gun is used for blowing air to the air nozzle, and after the air inflation shaft is inflated, the movable key strips protrude out of the surface of the air inflation shaft, so that the air inflation shaft is tightly attached to the inner side of the corrugated pipe; the lower extreme embedding seal groove of bellows is provided with seal gasket in the seal groove, has improved the leakproofness of bellows lower port, prevents that the port of bellows from taking place to reveal among the test procedure, improves the accuracy of test result.
Furthermore, clamping device including set up in centre gripping cylinder on the workstation with set up in centre gripping cylinder is close to the grip block of bellows one end, centre gripping cylinder control grip block is along the radial movement of bellows, the grip block is kept away from the outside of the one end laminating bellows of grip block.
The corrugated pipe clamping device has the advantages that the clamping plate is arranged on the piston rod of the clamping cylinder, the clamping cylinder can control the clamping plate to be close to the corrugated pipe, and the corrugated pipe is clamped between the two groups of clamping devices, so that the corrugated pipe is vertically and stably fixed on the workbench.
Furthermore, the side of end cover is provided with vertical sharp slip table, it is provided with the horizontally support frame to slide along vertical direction on the sharp slip table, air compressor the end cover set up in on the support frame.
The corrugated pipe sealing device has the beneficial effects that the support frame is arranged on the linear sliding table in a sliding mode, the automatic lifting of the air compressor and the end cover is realized by controlling the position of the support frame on the linear sliding table, and the corrugated pipe is conveniently sealed and fixed.
Furthermore, one side of the clamping plate, which is far away from the clamping cylinder, is provided with wavy clamping teeth, and the clamping teeth are meshed with the wavy outer side of the corrugated pipe.
The corrugated pipe clamping device has the beneficial effects that the clamping teeth are arranged, so that the clamping plate is tightly attached to the corrugated pipe, and the clamping stability of the clamping device to the corrugated pipe is improved.
Further, the sealing gasket is a rubber sealing gasket.
The rubber sealing gasket has the beneficial effects of simple structure, abrasion resistance and reliable sealing performance, has the function of buffering and damping, and has a protection effect on the surface of the corrugated pipe.
To sum up, the utility model discloses following beneficial effect has:
1. according to the scheme, the upper port and the lower port of the corrugated pipe are sealed by arranging the inflatable sealing assembly, so that the influence on a test result caused by the leakage of the ports in the corrugated pipe testing process is avoided;
2. according to the scheme, the clamping device is arranged to position and fix the corrugated pipe, so that the corrugated pipe is stably clamped and cannot shake; the linear sliding table is arranged to realize the lifting of the end cover, the position of the end cover is conveniently adjusted to plug the upper end of the corrugated pipe, the flexibility is good, and the test requirements of corrugated pipes with different lengths can be met;
3. this scheme is tested the sealing performance of bellows through setting up sealed test assembly, utilizes the change reaction bellows of bellows internal gas pressure's the state of revealing, need not to place the bellows and detect in aqueous, and the step is few, device simple structure is favorable to improving test efficiency.
Drawings
Fig. 1 is an overall configuration diagram of the present embodiment;
FIG. 2 is a partial exploded view of the present embodiment;
FIG. 3 is a partial exploded view of the present embodiment;
fig. 4 is a sectional view showing a state in which the bellows of the present embodiment is in communication with the first intake pipe and the second intake pipe.
Reference numerals: 1. a work table; 2. a clamping device; 21. a clamping cylinder; 22. a clamping plate; 3. an inflatable seal assembly; 31. an inflatable shaft; 32. a top cover sealing device; 321. an end cap; 322. a gas expansion seal ring; 4. sealing the test assembly; 41. a first intake pipe; 42. a first pressure gauge; 43. an air compressor; 5. a bellows; 6. a clamping tooth; 7. an air faucet; 8. a movable keybar; 10. a sealing groove; 11. an annular groove; 12. a first air cavity; 13. a second intake pipe; 14. a three-way valve; 15. a linear sliding table; 16. a support frame; 17. a lifting motor; 18. a screw rod; 19. a slide block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
The embodiment is as follows:
referring to fig. 1, 2, 3, and 4, a seal testing apparatus for a corrugated pipe includes: the device comprises a workbench 1, a clamping device 2, an inflatable sealing assembly 3 and a sealing test assembly 4.
Referring to fig. 1, the clamping devices 2 are arranged on the workbench 1, the clamping devices 2 are used for vertically clamping and fixing the corrugated pipe 5 on the workbench 1, two groups of clamping devices 2 are symmetrically arranged on the side surface of the corrugated pipe 5 along the radial direction of the corrugated pipe 5, and one opposite sides of the two groups of clamping devices 2 are attached to the outer side of the corrugated pipe 5; the clamping device 2 comprises a clamping cylinder arranged on the workbench 1 and a clamping plate 22 arranged at one end, close to the corrugated pipe 5, of the clamping cylinder, when a piston rod of the clamping cylinder 21 stretches, the clamping plate 22 can be driven to move synchronously, and an operator can control the clamping plate 22 to move along the radial direction of the corrugated pipe 5 through the clamping cylinder, so that one end, far away from the clamping cylinder 21, of the clamping plate 22 is attached to the outer side of the corrugated pipe 5; one side of the clamping plate 22, which is far away from the clamping cylinder 21, is provided with wavy clamping teeth 6, and the clamping teeth 6 are meshed with the wavy outer side of the corrugated pipe 5; by adopting the structure, the corrugated pipe 5 can be fixed between the two groups of clamping plates 22 and is not easy to shake.
Referring to fig. 2 and 3, the inflatable sealing assemblies 3 are disposed at two ends of the length direction of the corrugated pipe 5, and the inflatable sealing assemblies 3 are used for sealing the upper and lower ports of the corrugated pipe 5; the inflatable sealing assembly 3 comprises a vertical inflatable shaft 31 arranged at the lower end of the corrugated pipe 5 and a top cover sealing device 32 arranged at the upper end of the corrugated pipe 5; the outer side of the inflatable shaft 31 is attached to the inner side of the corrugated pipe 5, the side surface of the inflatable shaft 31 is provided with an air nozzle 7, a second air cavity is arranged inside the inflatable shaft 31, the outer peripheral surface of the inflatable shaft 31 is provided with a plurality of movable key strips 8 capable of protruding out of the surface of the inflatable shaft 31, and one ends of the movable key strips 8 and the air nozzle 7, which are close to the inside of the inflatable shaft 31, are communicated with the second air cavity; a sealing groove 10 which is sunken downwards is formed in the position, attached to the lower end of the corrugated pipe 5, of the inflatable shaft 31, the lower end of the corrugated pipe 5 is embedded into the sealing groove 10, and a sealing gasket is arranged in the sealing groove 10; the sealing gasket in the embodiment is a rubber sealing gasket which has good wear resistance and corrosion resistance and stable and reliable sealing performance; when the corrugated pipe 5 is installed, firstly, the corrugated pipe 5 is sleeved on the inflatable shaft 31, at the moment, the inner side of the corrugated pipe 5 is attached to the outer side of the inflatable shaft 31, the lower end of the corrugated pipe 5 is inserted into the sealing groove 10, and due to the arrangement of the sealing gasket, the lower end opening of the corrugated pipe 5 is blocked; the high-pressure air gun is connected with the air nozzle 7 to inflate the second air cavity, the movable key strips 8 on the surface of the air expansion shaft 31 protrude out of the surface of the air expansion shaft 31, and therefore the corrugated pipe 5 is tightly attached to the surface of the air expansion shaft 31.
Referring to fig. 3, the top cap sealing device 32 includes an end cap 321 disposed at the upper end of the bellows 5, and an inflatable sealing ring 322 disposed inside the end cap 321, the upper end of the bellows 5 abuts the top of the end cap 321, and the inside of the end cap 321 abuts the outside of the bellows 5.
Referring to fig. 4, a sealing test assembly 4 is disposed above the corrugated pipe 5, and the sealing test assembly 4 is used for testing the sealing performance of the corrugated pipe 5; the seal testing assembly 4 comprises a first air inlet pipe 41 arranged above the corrugated pipe 5, a first pressure gauge 42 arranged on the first air inlet pipe 41 and an air compressor 43 arranged at the end part of the first air inlet pipe 41, wherein one end, far away from the air compressor 43, of the first air inlet pipe 41 penetrates through the end cover 321 to extend into the corrugated pipe 5.
Referring to fig. 3 and 4, an annular groove 11 recessed outward is formed in the inner side of the end cover 321, the inflatable sealing ring 322 is disposed in the annular groove 11, an air inlet through which the first air inlet pipe 41 passes is formed in the middle of the end cover 321, an air inflation hole is formed in the edge, close to the end cover 321, of the upper side of the end cover 321, the outer side of the inflatable sealing ring 322 is attached to the outer side of the corrugated pipe 5, a first air cavity 12 is formed in the inflatable sealing ring 322, a first air hole is formed in the upper side of the inflatable sealing ring 322, a second air inlet pipe 13 is disposed on the first air hole, one end, far away from the first air hole, of the second air inlet pipe 13 passes through the air inflation hole and is communicated with the output end of the air compressor 43, and the first air hole is communicated with the first air cavity 12; the three-way valve 14 is arranged at the connection between the output end of the air compressor 43 and the first air inlet pipe 41 and the second air inlet pipe 13, and an operator adjusts the flow direction of compressed air in the air compressor 43 through the three-way valve 14, so as to inflate the first air cavity 12 and the corrugated pipe 5.
Referring to fig. 3, a vertical linear sliding table 15 is arranged on a side surface of the end cover 321, a horizontal support frame 16 is arranged on the linear sliding table 15 in a sliding manner along the vertical direction, and the air compressor 43 and the end cover 321 are arranged on the support frame 16; the linear sliding table 15 in this embodiment may be an existing linear ball screw sliding table, the linear ball screw sliding table generally includes a lifting motor 17, a screw 18 disposed on an output shaft of the lifting motor 17, and a slider 19 disposed on the screw 18, the lifting motor 17 drives the screw 18 to rotate so as to control the slider 19 to move up and down along the screw 18, the support frame 16 is connected with the slider 19 through a bolt, and when the slider 19 moves up and down, the support frame 16 can move synchronously with the slider 19; through the mode, an operator can flexibly adjust the lifting of the end cover 321 and the air compressor 43, so that the sealing test is performed on the corrugated pipes 5 with different lengths.
The utility model discloses a working process and principle as follows:
when the inflatable air bag works, the corrugated pipe 5 is firstly installed on the inflatable shaft 31, and the lower end of the corrugated pipe 5 is embedded into the sealing groove 10; then, the piston rods of the two groups of clamping cylinders 21 push the clamping plates 22 to be attached to the outer side of the corrugated pipe 5, and at the moment, the corrugated pipe 5 is clamped and fixed on the workbench 1 by the clamping cylinders 21; next, the end cap 321 moves downward and abuts the upper end of the corrugated tube 5; then, an operator can use a high-pressure air gun to inflate the inflatable shaft 31, so that the inflatable shaft 31 is attached to the corrugated pipe 5 more tightly, and at the moment, the lower port of the corrugated pipe 5 is blocked; next, the valve controlling the second air inlet pipe 13 on the three-way valve 14 is opened to inflate the inflatable sealing ring 322, when the air pressure in the inflatable sealing ring 322 is stable, the valve on the second air inlet pipe 13 is closed, and at this time, the upper port of the corrugated pipe 5 is blocked; finally, a valve controlling the first air inlet pipe 41 on the three-way valve 14 is opened, compressed air in the air compressor 43 enters the corrugated pipe 5 through the first air inlet pipe 41, because the upper and lower ports of the corrugated pipe 5 are sealed, a sealed cavity is formed inside the corrugated pipe 5, when the value on the first pressure gauge 42 is stable, the valve on the first air inlet pipe 41 is closed, the value on the first pressure gauge 42 is observed, if the value on the first pressure gauge 42 is stable for more than fifteen minutes, the sealing performance of the corrugated pipe 5 meets the requirement, otherwise, the sealing performance does not meet the requirement; the device is stable to the centre gripping of bellows 5, and during the experiment, the upper and lower port of bellows 5 is sealed completely, and experimental effect is accurate.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A seal test device for corrugated pipes is characterized by comprising
A work table (1);
the clamping devices (2) are arranged on the workbench (1) and used for vertically clamping the corrugated pipe (5) on the workbench (1), the two groups of clamping devices (2) are symmetrically arranged on the side surface of the corrugated pipe (5) along the radial direction of the corrugated pipe (5), and one opposite sides of the two groups of clamping devices (2) are attached to the outer side of the corrugated pipe (5);
the inflatable sealing assembly (3) is arranged at two ends of the length direction of the corrugated pipe (5) and used for sealing an upper port and a lower port of the corrugated pipe (5), the inflatable sealing assembly (3) comprises a vertical inflatable shaft (31) arranged at the lower end of the corrugated pipe (5) and a top cover sealing device (32) arranged at the upper end of the corrugated pipe (5), and the outer side of the inflatable shaft (31) is attached to the inner side of the corrugated pipe (5);
and the sealing test assembly (4) is arranged above the corrugated pipe (5) and used for testing the sealing performance of the corrugated pipe (5).
2. The sealing test device for the corrugated pipe according to claim 1, wherein the sealing test assembly (4) comprises a first air inlet pipe (41) arranged above the corrugated pipe (5), a first pressure gauge (42) arranged on the first air inlet pipe (41), and an air compressor (43) arranged at the end part of the first air inlet pipe (41), and one end, far away from the air compressor (43), of the first air inlet pipe (41) extends into the corrugated pipe (5) from the upper end of the corrugated pipe (5).
3. The seal test device for the corrugated pipe according to claim 2, wherein the top cover sealing device (32) comprises an end cover (321) arranged at the upper end of the corrugated pipe (5) and an inflatable sealing ring (322) arranged at the inner side of the end cover (321), the upper end of the corrugated pipe (5) is attached to the top of the end cover (321), and the inner side of the end cover (321) is attached to the outer side of the corrugated pipe (5);
an annular groove (11) which is recessed outwards is formed in the inner side of the end cover (321), the inflatable sealing ring (322) is arranged in the annular groove (11), and an air inlet hole for a first air inlet pipe (41) to penetrate through is formed in the middle of the end cover (321);
the outer side of the inflatable sealing ring (322) is attached to the outer side of the corrugated pipe (5), a first air cavity (12) is arranged inside the inflatable sealing ring (322), a first air hole is formed in the upper side of the inflatable sealing ring (322), a second air inlet pipe (13) is arranged on the first air hole, and one end, far away from the first air hole, of the second air inlet pipe (13) is communicated with the output end of an air compressor (43); the first air hole is communicated with the first air cavity (12); and a three-way valve (14) is arranged at the joint of the output end of the air compressor (43) and the first air inlet pipe (41) and the second air inlet pipe (13).
4. A sealing test device for a corrugated pipe according to claim 3, wherein an air nozzle (7) is provided at one side of the air expansion shaft (31), a second air cavity is provided inside the air expansion shaft (31), a plurality of movable key strips (8) capable of protruding out of the surface of the air expansion shaft (31) are provided on the outer circumferential surface of the air expansion shaft (31), and the movable key strips (8) and one end of the air nozzle (7) close to the inside of the air expansion shaft (31) are communicated with the second air cavity; the inflatable shaft (31) is attached to the lower end of the corrugated pipe (5), a sealing groove (10) which is sunken downwards is formed in the position, the lower end of the corrugated pipe (5) is embedded into the sealing groove (10), and a sealing gasket is arranged in the sealing groove (10).
5. A bellows seal test device according to any one of claims 1-4, wherein the clamping device (2) comprises a clamping cylinder disposed on the table (1) and a clamping plate (22) disposed at an end of the clamping cylinder close to the bellows (5), the clamping cylinder controls the clamping plate (22) to move along a radial direction of the bellows (5), and an end of the clamping plate (22) away from the clamping cylinder (21) abuts against an outer side of the bellows (5).
6. The sealing test device for the corrugated pipe according to claim 4, wherein a vertical linear sliding table (15) is arranged on the side surface of the end cover (321), a horizontal support frame (16) is arranged on the linear sliding table (15) in a sliding mode in the vertical direction, and the air compressor (43) and the end cover (321) are arranged on the support frame (16).
7. A seal test device for a corrugated pipe according to claim 5, characterized in that the side of the clamping plate (22) remote from the clamping cylinder (21) is provided with wave-shaped clamping teeth (6), the clamping teeth (6) engaging with the wave-shaped outer side of the corrugated pipe (5).
8. A sealing test device of a corrugated pipe as claimed in claim 6, wherein said sealing gasket is a rubber sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221619840.2U CN217505134U (en) | 2022-06-27 | 2022-06-27 | Sealing test device of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221619840.2U CN217505134U (en) | 2022-06-27 | 2022-06-27 | Sealing test device of bellows |
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| Publication Number | Publication Date |
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| CN217505134U true CN217505134U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221619840.2U Active CN217505134U (en) | 2022-06-27 | 2022-06-27 | Sealing test device of bellows |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686158A (en) * | 2024-02-04 | 2024-03-12 | 太原供水设计研究院有限公司 | Water pipe leak hunting device |
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2022
- 2022-06-27 CN CN202221619840.2U patent/CN217505134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686158A (en) * | 2024-02-04 | 2024-03-12 | 太原供水设计研究院有限公司 | Water pipe leak hunting device |
| CN117686158B (en) * | 2024-02-04 | 2024-04-09 | 太原供水设计研究院有限公司 | Water pipe leak hunting device |
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