CN214502811U - Floor drain sealing performance detection device - Google Patents
Floor drain sealing performance detection device Download PDFInfo
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- CN214502811U CN214502811U CN202120853953.8U CN202120853953U CN214502811U CN 214502811 U CN214502811 U CN 214502811U CN 202120853953 U CN202120853953 U CN 202120853953U CN 214502811 U CN214502811 U CN 214502811U
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Abstract
The utility model relates to a floor drain seal performance detection device belongs to leakproofness check out test set technical field, including the graduated flask that is used for holding test liquid, the both ends of graduated flask run through, the one end of graduated flask is provided with the connecting piece that is used for connecting explosion-proof floor drain, the graduated flask other end is provided with the shutoff piece that is used for the shutoff graduated flask. This application has the leakproofness to explosion-proof floor drain and detects the effect.
Description
Technical Field
The application relates to the technical field of tightness detection equipment, in particular to a floor drain sealing performance detection device.
Background
The floor drain is a drainage device connected with a ground and a drainage pipeline system, is an important interface for connecting the drainage pipeline system and the indoor ground, and directly influences the quality of indoor air due to the performance of the floor drain. The explosion-proof floor drain is used for special occasions and is generally used for building civil air defense areas, the explosion-proof floor drain is arranged at the inner end of a protection area on a drain pipe which leads to the outside of the civil air defense area, the explosion-proof floor drain is normally in a closed state, the drain core is placed in a valve cavity and can be completely sealed and locked by rotating clockwise by about 60 degrees (otherwise, the leakage core can be withdrawn by rotating anticlockwise by about 60 degrees), and explosion shock waves and other toxic gases can be prevented from entering a protection body through a pipeline when the explosion-proof floor drain is sealed, so that the safety protection effect is realized; after the anti-explosion floor drain is installed, the sealing performance of the anti-explosion floor drain needs to be detected so as to ensure the sealing performance of the anti-explosion floor drain.
At present, for example, patent document with publication number CN206504835U discloses a detection device for an explosion-proof floor drain, which comprises a static pressure box, wherein a top wall of the static pressure box is connected with a test joint, the test joint is screwed with the explosion-proof floor drain, a top wall of the static pressure box is connected with an exhaust pipe, the exhaust pipe is provided with an exhaust valve, a side wall of the static pressure box is connected with an air inlet pipe, an exhaust pipe and a pressure measuring pipe, the air inlet pipe is connected with an outlet of an air compressor through an air inlet valve, the exhaust pipe is connected with a suction port of a vacuum pump through an exhaust valve, the exhaust pipe is provided with a pressure gauge, and the pressure gauge is positioned between the exhaust valve and the static pressure box; the pressure measuring pipe is connected with the micro-pressure meter through a pressure measuring valve. The explosion-proof floor drain comprises a floor drain seat and a floor drain cover plate which are coaxial, wherein a drain pipe extending upwards along the axis is arranged in the center of a bottom plate of the floor drain seat, a sealing bowl with a downward opening is connected below the floor drain cover plate, a sealing gasket is arranged on the top wall of an inner cavity of the sealing bowl, and the sealing gasket is pressed on the upper port of the drain pipe.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the detection device is large in size, and inconvenient to operate when the sealing performance of the on-site explosion-proof floor drain is detected.
SUMMERY OF THE UTILITY MODEL
In order to detect the leakproofness of explosion-proof floor drain for a convenient way, this application provides a floor drain sealing performance detection device.
The application provides a floor drain sealing performance detection device adopts following technical scheme:
the utility model provides a floor drain sealing performance detection device, is including the graduated flask that is used for holding test liquid, the both ends of graduated flask run through, the one end of graduated flask is provided with the connecting piece that is used for connecting explosion-proof floor drain, the graduated flask other end is provided with the shutoff piece that is used for the shutoff graduated flask.
By adopting the technical scheme, when the sealing performance of the anti-explosion floor drain is detected, the measuring cylinder and the anti-explosion floor drain are connected into a whole through the connecting piece, then the test liquid is added into the measuring cylinder, and finally the opening of the measuring cylinder is blocked through the blocking piece; the staff observes the liquid level height change of the measuring cylinder at intervals, and then whether the explosion-proof floor drain leaks or not is detected, and the operation is simple and convenient; under the action of the plugging piece, the possibility that the test liquid volatilizes out of the measuring cylinder is reduced, and the test accuracy is improved; meanwhile, the measuring cylinder has the advantages of small volume and portability.
Optionally, the connecting piece includes the screw thread section of setting on explosion-proof floor drain inside wall, set up the thread groove that supplies screw thread section threaded connection on the graduated flask lateral wall, floor drain sealing performance detection device still includes the sealing member that is used for sealing the clearance between graduated flask and the explosion-proof floor drain.
By adopting the technical scheme, when the measuring cylinder is connected with the anti-explosion floor drain, the measuring cylinder is screwed into the anti-explosion floor drain, so that the operation is simple and convenient; meanwhile, the measuring cylinder is connected to the explosion-proof floor drain in a threaded manner, so that the fixing effect is good; under the effect of sealing member, seal the clearance between graduated flask and the explosion-proof floor drain, reduced the measuring cylinder in test liquid through the possibility that the clearance leaked, further improved the test accuracy.
Optionally, the sealing member includes a bearing ring arranged on the inner side wall of the explosion-proof floor drain, the bearing ring is located below the threaded section, and a rubber ring used for abutting against the end of the measuring cylinder is arranged at one end of the bearing ring close to the threaded section.
Through adopting above-mentioned technical scheme, twist and move the graduated flask, in the graduated flask got into explosion-proof floor drain, the tip butt of graduated flask arouses rubber ring deformation on rubber ring, and then has reduced the clearance between graduated flask and the rubber ring, and the rubber ring has easily acquirees, stable in structure's advantage.
Optionally, the blocking piece includes the rubber buffer, on the graduated flask was pegged graft to the rubber buffer, be provided with on the graduated flask and be used for fixing the fixed piece of rubber buffer to the graduated flask.
By adopting the technical scheme, when the opening of the measuring cylinder is plugged, the rubber plug is inserted into the measuring cylinder, so that the opening of the measuring cylinder is closed, and the operation is simple and convenient; meanwhile, under the action of the fixing piece, the rubber plug is fixed on the measuring cylinder, the possibility that the rubber plug and the measuring cylinder fall off carelessly is reduced, and the closing effect of the rubber plug on the measuring cylinder is improved.
Optionally, the mounting includes the hasp lock, the hasp lock is including setting up the lock body on the graduated flask and setting up the spring bolt on the rubber buffer.
By adopting the technical scheme, when the rubber plug is fixed, the rotary lock body is buckled on the bolt, and then the lock body is rotated, so that the rubber plug is fixed on the measuring cylinder, and the operation is convenient and fast; the hasp lock has the advantages of stable structure and easy acquisition.
Optionally, the floor drain sealing performance detection device further comprises a pressurizing device, and the pressurizing device is used for increasing pressure into the measuring cylinder.
By adopting the technical scheme, after the test liquid is added into the measuring cylinder, the test liquid is compressed by increasing the pressure in the measuring cylinder through the pressurizing device, so that the leakage rate of the test liquid is increased, and the test efficiency is improved.
Optionally, pressure device includes the air compressor machine, be provided with the connecting pipe on the output of air compressor machine, the one end of connecting pipe is passed in the rubber buffer gets into the graduated flask, be provided with the manometer on the graduated flask, communicate in manometer and the graduated flask.
By adopting the technical scheme, the air compressor is started and compresses the air in the measuring cylinder so as to increase the air pressure in the measuring cylinder, and the operation is simple and convenient; under the action of a pressure gauge, the tightness of the explosion-proof floor drain under different air pressures can be tested; meanwhile, under the action of the pressure gauge, the air pressure in the measuring cylinder is observed, and the possibility of damage to the measuring cylinder is reduced.
Optionally, the pressurizing device comprises a piston slidably disposed in the measuring cylinder, the piston slides along the length direction of the measuring cylinder, and a driving member for driving the piston to slide.
By adopting the technical scheme, when the pressure is applied, the piston is driven to slide by the driving part, and the sliding air of the piston is compressed, so that the air pressure in the measuring cylinder is increased, and the operation is convenient and fast; the piston has the advantages of light weight and wear resistance.
Optionally, the driving piece comprises an electric push rod arranged on the rubber plug, the length direction of the output shaft of the electric push rod is parallel to the length direction of the measuring cylinder, and the piston is arranged on the output shaft of the electric push rod.
By adopting the technical scheme, the electric push rod is started and drives the piston to slide, so that the labor capacity of workers is reduced; the electric push rod has the advantages of stable transmission and easy control.
Optionally, scales are arranged on the measuring cylinder along the length direction of the measuring cylinder, a pointer used for indicating the scales is arranged on the inner side wall of the measuring cylinder, and the pointer and the test liquid level have the same movement trend
By adopting the technical scheme, under the action of the scales, the change of the liquid level can be observed more visually by a worker; and under the action of the pointer, the leakage amount of the test liquid is obtained according to the liquid level change.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the staff observes the liquid level height change of the measuring cylinder at intervals, and then whether the explosion-proof floor drain leaks or not is detected, and the operation is simple and convenient;
2. under the action of the plugging piece, the possibility that the test liquid volatilizes out of the measuring cylinder is reduced, and the test accuracy is improved;
3. after the test liquid is added into the measuring cylinder, the pressure in the measuring cylinder is increased through the pressurizing device to compress the test liquid, so that the leakage rate of the test liquid is increased, and the test efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1;
FIG. 2 is an exploded view of example 1;
FIG. 3 is a sectional view of embodiment 1, which is intended to show a schematic construction of a pointer;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is an enlarged schematic view of portion B of FIG. 2;
FIG. 6 is an enlarged schematic view of portion C of FIG. 3;
FIG. 7 is a schematic view of the entire structure of embodiment 2;
FIG. 8 is a sectional view of embodiment 2.
Description of reference numerals: 1. a measuring cylinder; 2. calibration; 3. a connecting member; 31. a threaded segment; 32. a thread groove; 4. a blocking member; 41. a rubber plug; 411. a first plug body; 412. a second plug body; 5. a seal member; 51. a bearing ring; 52. a rubber ring; 6. a fixing member; 61. a hasp lock; 611. a lock body; 612. a latch bolt; 7. a pressurizing device; 71. an air compressor; 72. a connecting pipe; 73. a piston; 74. a drive member; 741. an electric push rod; 8. a pressure gauge; 9. a fixed tube; 10. a pointer; 101. a T-shaped block; 102. connecting blocks; 103. a buoyancy block; 104. an indicator needle; 11. a T-shaped slot; 12. explosion-proof floor drain.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses floor drain sealing performance detection device.
Example 1
Referring to fig. 1, the floor drain sealing performance detection device comprises a measuring cylinder 1 for containing test liquid, wherein the measuring cylinder 1 is cylindrical, the measuring cylinder 1 is a transparent measuring cylinder 1 made of transparent materials, two ends of the measuring cylinder 1 penetrate through the measuring cylinder, and scales 2 are marked on the measuring cylinder 1 along the length direction of the measuring cylinder; one end of the measuring cylinder 1 is provided with a connecting piece 3 for connecting an explosion-proof floor drain 12, and the other end of the measuring cylinder 1 is provided with a plugging piece 4 for plugging the measuring cylinder 1; in this embodiment, the test liquid may be water, kerosene, or the like. When the tightness of the anti-explosion floor drain 12 is detected, the measuring cylinder 1 and the anti-explosion floor drain 12 are connected into a whole, then test liquid is added into the measuring cylinder 1, finally the opening of the measuring cylinder 1 is closed through the plugging piece 4, and workers observe the height change of the liquid level in the measuring cylinder 1 at intervals, so that whether the anti-explosion floor drain 12 leaks water is detected.
Referring to fig. 1 and 2, the connecting member 3 includes a threaded section 31 formed on the inner side wall of the explosion-proof floor drain 12, and a threaded groove 32 for the threaded connection of the threaded section 31 is formed on the outer side wall of one end of the measuring cylinder 1; the measuring cylinder 1 is inserted into the anti-explosion floor drain 12, then the measuring cylinder 1 is rotated, and the measuring cylinder 1 is connected to the anti-explosion floor drain 12, so that the operation is simple and convenient.
Referring to fig. 3 and 4, in order to reduce the possibility of leakage of the test liquid through the gap between the measuring cylinder 1 and the explosion-proof floor drain 12, the floor drain sealing performance detection device further comprises a sealing element 5 for sealing the gap between the measuring cylinder 1 and the explosion-proof floor drain 12, the sealing element 5 comprises a receiving ring 51 arranged on the inner side wall of the explosion-proof floor drain 12, the outer peripheral wall of the receiving ring 51 and the inner peripheral wall of the explosion-proof floor drain 12 are integrally formed, the length direction of the measuring cylinder 1 is perpendicular to the plane where the receiving ring 51 is located, the receiving ring 51 is located below the threaded section 31, one end, close to the threaded section 31, of the receiving ring 51 is fixedly connected with a rubber ring 52 for abutting against the end of the measuring cylinder 1 through glue, and the outer peripheral wall of the rubber ring 52 is fixedly connected to the inner peripheral wall of the explosion-proof floor drain 12 through waterproof glue; in the process of screwing the measuring cylinder 1 into the explosion-proof floor drain 12, the end part of the measuring cylinder 1 is abutted against the rubber ring 52, and the rubber ring 52 is elastically deformed after the measuring cylinder 1 is abutted against the rubber ring 52, so that the gap between the measuring cylinder 1 and the rubber ring 52 is reduced, and the possibility of testing liquid leakage is reduced.
Referring to fig. 2, the blocking member 4 includes a rubber plug 41, the rubber plug 41 is inserted into the measuring cylinder 1, the rubber plug 41 includes a first plug 411 and a second plug 412 integrally formed on the first plug 411, the first plug 411 is disc-shaped, and the diameter of the first plug 411 is equal to the outer diameter of the measuring cylinder 1; the second plug 412 is in a circular truncated cone shape; when the measuring cylinder 1 is closed, the second plug body 412 is inserted into the measuring cylinder 1, so that the opening of the measuring cylinder 1 is closed, and the operation is simple and convenient.
Referring to fig. 2 and 5, in order to reduce the possibility that the second plug body 412 is separated from the measuring cylinder 1, a fixing member 6 for fixing the rubber plug 41 to the measuring cylinder 1 is arranged on the measuring cylinder 1, the fixing member 6 includes three snap locks 61 (the snap locks 61 are known in the art), in this embodiment, there are three snap locks 61, the snap locks 61 include lock bodies 611 arranged on the measuring cylinder 1 and lock tongues 612 arranged on the first plug body 411, the lock bodies 611 are fixedly connected to the outer circumferential wall of the measuring cylinder 1 through glue, and the three lock bodies 611 are uniformly arranged along the outer circumferential wall of the measuring cylinder 1; the latch tongue 612 is bolted to the first plug body 411; when the second plug 412 is fixed, the lock body 611 is rotated to lock the lock body 611 to the lock tongue 612, and then the lock body 611 is rotated in the opposite direction to fixedly connect the second plug 412 to the measuring cylinder 1.
Referring to fig. 1 and 2, in order to improve the efficiency of the test, the floor drain sealing performance detection device further includes a pressurizing device 7, the pressurizing device 7 is used for increasing pressure into the measuring cylinder 1, the pressurizing device 7 includes an air compressor 71, a connecting pipe 72 is connected to an output end of the air compressor 71, the connecting pipe 72 is preferably a soft pipe, and one end of the connecting pipe 72 penetrates through the second plug body 412 and enters the measuring cylinder 1; during testing, the air compressor 71 is started, the air compressor 71 compresses air in the measuring cylinder 1, air pressure in the measuring cylinder 1 is increased, the air pressure exerts a driving force towards the anti-explosion floor drain 12 on liquid to be tested, the liquid leakage testing speed is accelerated, and testing efficiency is improved.
Referring to fig. 1 and 2, in order to facilitate the detection of the anti-explosion floor drain 12 under different air pressures, a pressure gauge 8 is installed on a measuring cylinder 1, the pressure gauge 8 is communicated with the inside of the measuring cylinder 1, a fixed pipe 9 is installed on the pressure gauge 8, the fixed pipe 9 is preferably a hard pipe, and one end of the fixed pipe 9 is communicated with the measuring cylinder 1; under the action of the pressure gauge 8, the air pressure value in the measuring cylinder 1 is fed back out, so that the test can be conveniently carried out under different air pressures.
Referring to fig. 3 and 6, in order to accurately calculate the leakage amount of the liquid to be tested in the measuring cylinder 1, a pointer 10 for indicating a scale 2 is installed on the inner side wall of the measuring cylinder 1, the pointer 10 faces the scale 2, the pointer 10 has the same movement trend with the liquid level to be tested, the pointer 10 comprises a T-shaped block 101, a connecting block 102, a buoyancy block 103 and an indicating needle 104, a T-shaped groove 11 for the T-shaped block 101 to slide is formed in the inner side wall of the measuring cylinder 1, and an opening of the T-shaped groove 11 faces the scale 2; the connecting block 102 is fixedly connected to the T-shaped block 101, and further, the connecting end of the connecting block 102 and the T-shaped block 101 is located at the end part of the T-shaped block 101, which is far away from the inner wall of the measuring cylinder 1; the buoyancy block 103 is fixedly connected to the end portion, far away from the T-shaped block 101, of the connecting block 102, the pointer 104 is fixedly connected to the buoyancy block 103, and the pointer 104 is further opposite to the scale 2; under the action of the buoyancy block 103, the pointer 104 is enabled to have the same movement trend with the liquid level, so that the staff can conveniently read the height of the liquid level. The possibility of the pointer 104 being misaligned with the scale 2 is reduced by the T-block 101 and the T-shaped slot 11.
The implementation principle of the embodiment 1 is as follows:
when the sealing performance of the anti-explosion floor drain 12 is tested, the measuring cylinder 1 is connected to the anti-explosion floor drain 12 to be tested, then water is added into the measuring cylinder 1 to a proper height, then the second plug body 412 is inserted into an opening of the measuring cylinder 1, and the second plug body 412 is fixed on the measuring cylinder 1 through the hasp lock 61; starting the air compressor 71, wherein the air compressor 71 works to increase the air pressure in the measuring cylinder 1 so as to discharge water in the measuring cylinder 1; when the liquid level in the measuring cylinder 1 drops, the sealing performance of the surface explosion-proof floor drain 12 does not meet the design requirement; when the liquid level is kept unchanged, the surface explosion-proof floor drain 12 has better sealing performance.
Example 2
The present embodiment is different from embodiment 1 in that, referring to fig. 7 and 8, the pressurizing device 7 includes a piston 73 slidably disposed in the measuring cylinder 1, the piston 73 is cylindrical, further, the diameter of the piston 73 is larger than the inner diameter of the measuring cylinder 1, the piston 73 slides along the length direction of the measuring cylinder 1, and further includes a driving member 74 for driving the piston 73 to slide, the driving member 74 includes an electric push rod 741 fixedly connected to the second plug 412, the length direction of the output shaft of the electric push rod 741 is parallel to the length direction of the measuring cylinder 1, and the piston 73 is disposed on the output shaft of the electric push rod 741; the electric push rod 741 is started, the electric push rod 741 compresses air above the liquid level, and accordingly air pressure in the measuring cylinder 1 is increased, and testing efficiency is improved.
The implementation principle of the embodiment 2 is as follows:
when the sealing performance of the anti-explosion floor drain 12 is tested, the measuring cylinder 1 is connected to the anti-explosion floor drain 12 to be tested, then water is added into the measuring cylinder 1 to a proper height, then the second plug body 412 is inserted into an opening of the measuring cylinder 1, and the second plug body 412 is fixed on the measuring cylinder 1 through the hasp lock 61; starting the electric push rod 741, compressing air above the liquid level by the electric push rod 741, and further increasing air pressure in the measuring cylinder 1 to discharge water in the measuring cylinder 1; when the liquid level in the measuring cylinder 1 drops, the sealing performance of the surface explosion-proof floor drain 12 does not meet the design requirement; when the liquid level is kept unchanged, the surface explosion-proof floor drain 12 has better sealing performance.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a floor drain seal performance detection device which characterized in that: the device comprises a measuring cylinder (1) for containing test liquid, wherein the two ends of the measuring cylinder (1) are penetrated, one end of the measuring cylinder (1) is provided with a connecting piece (3) for connecting an anti-explosion floor drain (12), and the other end of the measuring cylinder (1) is provided with a plugging piece (4) for plugging the measuring cylinder (1).
2. The device for detecting the sealing performance of the floor drain as claimed in claim 1, wherein: the connecting piece (3) is including setting up screw thread section (31) on explosion-proof floor drain (12) inside wall, set up on graduated flask (1) lateral wall and supply screw thread section (31) threaded connection's thread groove (32), floor drain sealing performance detection device still including being used for sealing up sealing member (5) in clearance between graduated flask (1) and explosion-proof floor drain (12).
3. The device for detecting the sealing performance of the floor drain as claimed in claim 2, wherein: the sealing element (5) comprises a bearing ring (51) arranged on the inner side wall of the anti-explosion floor drain (12), the bearing ring (51) is located below the threaded section (31), and a rubber ring (52) used for abutting against the end part of the measuring cylinder (1) is arranged at one end, close to the threaded section (31), of the bearing ring (51).
4. The device for detecting the sealing performance of the floor drain as claimed in claim 1, wherein: the blocking piece (4) comprises a rubber plug (41), the rubber plug (41) is inserted into the measuring cylinder (1), and a fixing piece (6) used for fixing the rubber plug (41) to the measuring cylinder (1) is arranged on the measuring cylinder (1).
5. The device for detecting the sealing performance of the floor drain as claimed in claim 4, wherein: the fixing piece (6) comprises a hasp lock (61), and the hasp lock (61) comprises a lock body (611) arranged on the measuring cylinder (1) and a lock tongue (612) arranged on the rubber plug (41).
6. The device for detecting the sealing performance of the floor drain as claimed in claim 4, wherein: the device for detecting the sealing performance of the floor drain further comprises a pressurizing device (7), wherein the pressurizing device (7) is used for increasing pressure into the measuring cylinder (1).
7. The device for detecting the sealing performance of the floor drain as claimed in claim 6, wherein: pressure device (7) include air compressor machine (71), be provided with connecting pipe (72) on the output of air compressor machine (71), the one end of connecting pipe (72) is passed in rubber buffer (41) gets into graduated flask (1), be provided with manometer (8) on graduated flask (1), communicate in manometer (8) and the graduated flask (1).
8. The device for detecting the sealing performance of the floor drain as claimed in claim 6, wherein: the pressurizing device (7) comprises a piston (73) which is arranged in the measuring cylinder (1) in a sliding mode, wherein the piston (73) slides along the length direction of the measuring cylinder (1), and a driving piece (74) used for driving the piston (73) to slide.
9. The device for detecting the sealing performance of the floor drain as claimed in claim 8, wherein: the driving piece (74) comprises an electric push rod (741) arranged on the rubber plug (41), the length direction of an output shaft of the electric push rod (741) is parallel to the length direction of the measuring cylinder (1), and the piston (73) is arranged on the output shaft of the electric push rod (741).
10. The device for detecting the sealing performance of the floor drain as claimed in claim 1, wherein: the measuring cylinder (1) is provided with scales (2) along the length direction of the measuring cylinder, a pointer (10) used for indicating the scales (2) is arranged on the inner side wall of the measuring cylinder (1), and the pointer (10) and the test liquid level have the same movement trend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120853953.8U CN214502811U (en) | 2021-04-24 | 2021-04-24 | Floor drain sealing performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120853953.8U CN214502811U (en) | 2021-04-24 | 2021-04-24 | Floor drain sealing performance detection device |
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| Publication Number | Publication Date |
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| CN214502811U true CN214502811U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120853953.8U Active CN214502811U (en) | 2021-04-24 | 2021-04-24 | Floor drain sealing performance detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636528A (en) * | 2022-04-11 | 2022-06-17 | 长江三峡绿洲技术发展有限公司 | HDPE pipe air tightness inspection device and using method thereof |
-
2021
- 2021-04-24 CN CN202120853953.8U patent/CN214502811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636528A (en) * | 2022-04-11 | 2022-06-17 | 长江三峡绿洲技术发展有限公司 | HDPE pipe air tightness inspection device and using method thereof |
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