CN113740007A - Bellows gas tightness short-term test device is with detecting anchor clamps - Google Patents
Bellows gas tightness short-term test device is with detecting anchor clamps Download PDFInfo
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- CN113740007A CN113740007A CN202111144867.0A CN202111144867A CN113740007A CN 113740007 A CN113740007 A CN 113740007A CN 202111144867 A CN202111144867 A CN 202111144867A CN 113740007 A CN113740007 A CN 113740007A
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- 238000012031 short term test Methods 0.000 title claims description 3
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 125000006850 spacer group Chemical group 0.000 claims abstract description 23
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 230000017105 transposition Effects 0.000 claims abstract description 10
- 210000000078 claw Anatomy 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
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- Physics & Mathematics (AREA)
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a detection clamp for a bellows air tightness rapid detection device, and belongs to the field of metal hose manufacturing and air tightness detection. The reducing hole of the clamp cylinder seat is communicated with the radial air hole, and an air valve rod is inserted in the reducing hole; the outer end of the elastic collet chuck inserted in the expanding hole is provided with a petal-shaped clamping claw matched with the corrugated pipe, and a spacer ring is arranged inside the elastic collet chuck; the front end of the ventilation valve rod penetrates out of the spacer ring and is provided with a locking nut for holding the spacer ring; a spring is arranged between the back of the spacer ring and the bottom of the expanding hole; the central vent hole of the vent valve rod is communicated with the radial hole, and the rear end of the vent valve rod is hinged with a transposition handle with clamping and releasing positions. The vent valve rod is not only an air path opening and closing piece, but also a clamping operation piece, so the structure is simple, the switching of the position of the vent valve rod simultaneously realizes the air path switching and the clamping action, the clamping operation is very convenient, the vent valve rod is suitable for corrugated pipes with various specifications, the port damage can be effectively avoided, and the adverse effect of human factors on the detection is eliminated.
Description
Technical Field
The invention relates to a detection clamp for a quick detection device for detecting the air tightness of a corrugated pipe, in particular to a quick clamping and detection device suitable for detecting the air tightness of a small-caliber metal corrugated pipe below DN50 caliber, and belongs to the technical field of metal hose detection.
Background
After the production of the tube blank of the corrugated tube is finished, the air tightness detection for detecting whether the leakage phenomenon exists in the corrugated tube needs to be carried out so as to ensure the production quality of the corrugated tube and improve the product percent of pass. When carrying out the gas tightness and detecting, need sealed centre gripping bellows tip, aerify and detect, mostly manual operation at present, not only inefficiency, moreover because the centre gripping dynamics is mastered not well, the phenomenon that the tube tip presss from both sides badly appears in the inevitable.
The retrieval shows that Chinese patent with publication number CN105841900A discloses a bellows gas tightness detection jig, which comprises a base, an inner cavity blocking head and an outer wall sealing clamping assembly fixed on the base, a gap for inserting the end part of the bellows is arranged between the inner cavity blocking head and the outer wall sealing clamping assembly, the inner cavity blocking head is provided with a gas injection hole, the outer wall sealing clamping assembly is provided with a fixed clamping part and a sliding clamping part which are arranged in a split manner, a first cylinder is arranged for driving the sliding clamping part to move or move back, and the outer wall of the end part of the bellows is clamped in a matching manner with the fixed clamping part during the process of the sliding clamping part. The end part of the pipeline is sealed by the inner cavity plugging head and the outer wall sealing clamping assembly, so that the inner cavity of the pipeline forms a closed space, gas is injected into the closed inner cavity through the gas injection hole, and the gas tightness of the corrugated pipe is detected by testing the pressure change of the inner cavity. In practice, the technical scheme is difficult to avoid the damage of the pipe wall and the port in the detection process, and is not suitable for quick clamping of coiled corrugated pipes.
In addition, the chinese patent with publication number CN 109100086B discloses a detection clamp for a detection device for detecting the air tightness of a corrugated pipe, which comprises a base, a lifting block, a lifting mechanism and a controller, the upper surface of the base is fixedly connected with the bottom of the clamping mechanism at a position close to the right end, the lifting block is positioned at the left side of the clamping mechanism, the left end of the upper surface of the lifting block is fixedly connected with the cylinder, the right end of the upper surface of the lifting block is fixedly connected with the bottom of the inflating mechanism, the output shaft of the air cylinder is fixedly connected with the left side of the inflating mechanism, the controller is electrically connected with the clamping mechanism, the lifting mechanism and the inflating mechanism, aiming at the corrugated pipes with different specifications, when the air tightness of the corrugated pipe is detected, the corrugated pipe is placed on the clamping mechanism, after the clamping mechanism clamps the corrugated pipe, the lifting mechanism is automatically adjusted, so that the corrugated pipe is opposite to the inflating mechanism and the inflating mechanism is tightly connected with the corrugated pipe under the driving of the cylinder. The technical scheme has the problems of complex mechanism and complex operation; after the detection is finished, practical pressure relief and exhaust cannot be carried out, and the safety is low.
Chinese patent application No. 201821430199.1 discloses a metal bellows pin collet for incision, including the collet body, a plurality of groove has been seted up on the collet body, a plurality of clamping part is equallyd divide into with the one end of collet body in the groove, and the tip of a plurality of clamping part is seted up flutedly. Although the spring chuck is simple in structure, the corrugated pipe is directly placed into the spring clamp, the efficiency is improved, the spring chuck is only suitable for processing cuts of the corrugated pipe in batches, and is not suitable for quick detection and clamping of the air tightness of the corrugated pipe which needs to be clamped and controlled by an air path, and the end part of the corrugated pipe is still difficult to avoid crushing damage.
Disclosure of Invention
The invention aims to: to the problems existing in the prior art, the detection clamp for the corrugated pipe air tightness rapid detection device is provided, which is very convenient to clamp and control, strong in adaptability and capable of effectively avoiding port damage.
In order to achieve the purpose, the basic technical scheme of the detection clamp for the corrugated pipe air tightness rapid detection device is as follows: comprises a cylinder seat with a front section of a flared diameter expanding hole and a rear section of a diameter reducing hole; the diameter reducing hole is communicated with the radial air hole, and a ventilation valve rod forming a sealing moving pair with the diameter reducing hole is inserted in the diameter reducing hole;
an elastic collet chuck is inserted into the diameter-expanding hole, the outer end of the elastic collet chuck is provided with petal-shaped clamping claws matched with the corrugated pipe, and a spacer ring is arranged inside the elastic collet chuck;
the front end of the ventilation valve rod penetrates through the spacer ring and is provided with a locking nut which presses the spacer ring through a sealing plug and a gasket; a spring is arranged between the back of the spacer ring and the bottom of the expanding hole;
the central vent hole of the vent valve rod is communicated with the radial hole, and the rear end of the vent valve rod is hinged with a transposition handle with clamping and releasing positions;
when the indexing handle is in the clamping position, the vent valve rod is in the pulled and retracted position, the sealing plug is pressed to expand, and the radial hole is aligned with the radial air hole; the elastic collet chuck is in a clamping state that the spacing ring compression spring and the front end are embedded into the bell mouth;
when the indexing handle is in the release position, the vent valve rod is in the release extending position, the sealing plug is elastically restored, and the radial hole is deviated from the radial air hole; the elastic collet chuck is in a release state that the spacing ring releases the spring and the front end is separated from the bell mouth.
After the detection clamp is adopted, when the transposition handle is in the releasing position, one end of the corrugated pipe is inserted into the inlet end of the detection clamp to be limited by the spacing ring; rotating the transposition handle to a clamping position, expanding and deforming the sealing plug due to the movement of the vent valve rod under pressure to realize tight joint and sealing with the inner wall of the corrugated pipe, and simultaneously embedding the front end of the elastic collet chuck into a bell mouth to enable the petal-shaped clamping claws to contract and clamp the wave trough of the corrugated pipe; the other end of the bellows is then inserted into another inspection fixture. Then, open the leak detector, through radial gas pocket and with it aim at the radial pore pair bellows of intercommunication and aerify, steady voltage, detect the gas tightness can, high-efficient, convenient, stable.
Therefore, the vent valve rod is not only an air path opening and closing piece, but also a clamping operation piece, so the structure is simple, the switching of the position of the vent valve rod simultaneously realizes the switching of the air path and the clamping action, the clamping operation is very convenient, the elastic collets with different specifications are easy to replace, the vent valve rod is suitable for corrugated pipes with various specifications, the port damage can be effectively avoided, and the adverse effect of human factors on the detection is eliminated.
The invention has the further perfection that: the transposition handle is provided with a sealing gasket which blocks the rear end of the ventilation valve rod in a clamping state.
The invention has the further perfection that: the inner opening of the clamping jaw is an arc bayonet matched with the outer wall of the wave trough of the corrugated pipe in shape.
The invention has the further improvement that: the outer section of the elastic collet chuck is provided with a conical section matched with the cone of the horn mouth at the front end of the cylinder seat.
The invention has the further perfection that: the tail cover is embedded at the bottom of the reducing hole of the cylinder seat.
The invention has the further perfection that: the rear end of the ventilation valve rod is hinged with a transposition handle through a riveting rod; the indexing handle has a clamping position and a release position perpendicular to and parallel to the axial direction of the cylinder base, respectively, and has a cam curved profile which is kept in contact with the tail cover at the bottom of the cylinder base.
The invention is still further perfected as follows: and the external thread of the end part of the front end reducing section of the ventilation valve rod penetrates out of the spacer ring and then is provided with a locking nut which presses the front surface of the spacer ring through a sealing plug and a metal gasket.
The invention has the further perfection that: the reducing hole of the cylinder seat is inserted with an O-shaped sealing ring which is distributed at intervals to form a ventilation valve rod of a sealing moving pair.
Drawings
FIG. 1 is a schematic perspective view of one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the embodiment of FIG. 1 in use;
FIG. 4 is a schematic structural view of the unclamped state of FIG. 3;
FIG. 5 is a schematic view of the clamped state of FIG. 3;
FIG. 6 is a cross-sectional structural schematic view of the resilient collet of FIG. 4;
FIG. 7 is a cross-sectional structural schematic view of the resilient collet of FIG. 5;
fig. 8 is a schematic view of the resilient collet configuration of the embodiment of fig. 1.
Detailed Description
As shown in fig. 1 and 2, the front section of the cylinder base 402 is an expanded diameter hole with a front end bell mouth, and the rear section is a reduced diameter hole. The reducing hole is communicated with the radial air hole 2.1, and a ventilation valve rod 411 which forms a sealing moving pair through an O-shaped sealing ring 410 distributed at intervals is inserted into the reducing hole, and the bottom of the reducing hole is embedded with a tail cover 404.
An elastic collet chuck 401 is inserted into the expanding hole, the specific structure of the elastic collet chuck 401 is shown in fig. 8, six petal-shaped clamping claws 4013 formed by axial opening grooves of the cylinder wall are arranged at the outer end of the elastic collet chuck 401, the inner opening of each clamping claw 4013 is an arc bayonet 4011 matched with the corrugated pipe, and the outer wall of a wave trough of the corrugated pipe in shape, so that clamping injury can be effectively avoided. The outer section of the resilient collet 401 has a tapered section 4012 that is adapted to the flare taper at the front of the collet 402 so that the clamping jaws 4013 can be tightened or released when they are displaced axially relative to each other. The interior of the resilient collet 401 has a spacer ring 1.1.
The external thread of the front end reducing section end of the vent valve rod 411 penetrates through the spacer ring 1.1, and then a locking nut 406 which presses and holds the front of the spacer ring 1.1 through a sealing plug 407 and a metal gasket 408 is arranged. A spring 409 is arranged between the back of the spacer ring 1.1 and the bottom of the expanding hole. The central vent hole 1.3 of the vent valve stem 411 communicates with the radial hole 1.2 and is hinged at the rear end by a rivet 403 to an indexing handle 405, the indexing handle 405 having gripping and releasing positions respectively perpendicular and parallel to the axial direction of the cartridge holder 402 and having a cam profile that maintains contact with the tail cap 404 at the bottom of the cartridge holder 402.
As shown in fig. 3, in practical use of this embodiment, the detection clamps 4 and 6 are used to clamp two ends of the bellows 5 in pairs, respectively, in which the difference is that the part 6 does not need to be provided with the radial hole 1.2 and the radial air hole 2.1, and only plays a role of clamping and plugging, and the part 4 is connected to the compressed air source 2 through the air pipe 3 via the leak detector 1 via the radial air hole 2.1.
Before detection, as shown in fig. 4 (see fig. 6), two ends of a bellows 5 to be detected are respectively inserted into detection clamps 4 and 6 for a bellows airtightness quick detection device, at this time, the indexing handle 405 is in a release position which is axially perpendicular to the cylinder base 402, the vent valve rod 411 is in a released extending position, the spacer ring 1.1 releases the spring 409, the elastic collet chuck 401 is under the action of the spring 409, the tapered section 4012 is pulled out of the horn mouth at the front end of the cylinder base 402, so that the clamping claw 4013 is released, the sealing plug 407 is elastically restored, the radial hole 1.2 is in a position which deviates from the radial air hole 2.1, and the vent valve rod 411 is actually closed.
Next, as shown in fig. 5 (see fig. 7), the indexing handle 405 is rotated 90 ° to the clamping position, and at this time, the vent valve rod 411 is in the retracted position pulled by the cam profile, the sealing plug 407 is expanded by pressure to form a seal in the bellows 5, the radial hole 1.2 is in the position aligned with the radial air hole 2.1, so that the vent valve rod 411 is in the opened state, the elastic collet chuck 401 is in the position where the spacer ring 1.1 compresses the spring 409, the front end conical section 4012 is embedded in the front end bell mouth of the seat 402, and the clamping claws 4013 are retracted inwards to be clamped in the valley position of the bellows 5. And then keeping the clamp still, starting the gas source 2 and the leak detector 1, filling high-pressure gas into the corrugated pipe 5 to be detected through the gas pipe 3, keeping for a period of time, and if the gas pressure is kept within a normal range, performing qualified gas detection on the corrugated pipe. At this moment, close air supply 2, restore the transposition handle to the release position, take out the bellows can, very convenient.
It should be mentioned that the transposition handle 405 of this embodiment is equipped with the sealed pad 412 of clamping state shutoff ventilation valve rod 411 rear end, and when the change of cam curved profile utmost point diameter drove ventilation valve rod 411 and move backward and realize sealing between sealing plug 407 and the bellows, sealed pad 412 shutoff ventilation valve rod 411 center vent hole 1.3's one end, and the process of loosening then opens center vent hole 1.3 gradually, slowly exhausts, prevents that the bellows whipping from causing the injury.
Tests show that the detection clamp for the corrugated pipe air tightness rapid detection device has the following advantages:
(1) the principle of 'external clamping and internal expansion' is ingeniously utilized, reliable clamping and blocking are realized, clamping and air valve switching are realized simultaneously in a simple structure, and the efficiency is high;
(2) the clamping part is fully matched with the wave trough of the corrugated pipe, so that the corrugated pipe can be completely prevented from moving, and clamping injury is effectively avoided;
(3) the reasonable spacer ring structure not only realizes clamping reset by virtue of the spring, but also can limit the insertion depth of the corrugated pipe and avoid the end part of the corrugated pipe from being extruded and damaged;
(4) when corrugated pipes with different specifications are detected, only elastic collet chucks and sealing plugs with different specifications need to be replaced, so that the adaptability is strong, and the device is suitable for leak detection of large-batch and large-coil corrugated pipes;
(5) the sealed cooperation that fills up on ventilation valve rod and the handle helps preventing the maloperation, guarantees safety: before detection, preventing mistaken inflation; in the detection, the sealing performance is ensured; after the detection is finished, the tail end of the vent valve rod is gradually deflated, so that the danger caused by high-pressure gas is avoided.
In a word, the anchor clamps adaptation scope of this embodiment is wide, can wait to examine the bellows by the quick clamping, has promoted work efficiency widely, safe and reliable.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a bellows gas tightness short-term test device is with detecting anchor clamps which characterized in that: comprises a cylinder seat (402) with a front section of a flared diameter-expanding hole and a rear section of a diameter-reducing hole; the diameter reducing hole is communicated with the radial air hole (2.1), and a ventilation valve rod (411) forming a sealing moving pair is inserted into the diameter reducing hole;
an elastic collet chuck (401) is inserted into the diameter-expanding hole, the outer end of the elastic collet chuck is provided with petal-shaped clamping claws matched with the corrugated pipe, and a spacer ring (1.1) is arranged inside the elastic collet chuck;
the front end of the ventilation valve rod penetrates through the spacer ring and is provided with a locking nut (406) which presses the spacer ring through a sealing plug (407) and a gasket (408); a spring (409) is arranged between the back of the spacer ring and the bottom of the expanding hole;
a central vent hole (1.3) of the vent valve rod is communicated with the radial hole (1.2), and the rear end of the vent valve rod is hinged with an indexing handle (405) with clamping and releasing positions;
when the indexing handle is in the clamping position, the vent valve rod is in the pulled and retracted position, the sealing plug is pressed to expand, and the radial hole is aligned with the radial air hole; the elastic collet chuck is in a clamping state that the spacing ring compression spring and the front end are embedded into the bell mouth;
when the indexing handle is in the release position, the vent valve rod is in the release extending position, the sealing plug is elastically restored, and the radial hole is deviated from the radial air hole; the elastic collet chuck is in a release state that the spacing ring releases the spring and the front end is separated from the bell mouth.
2. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 1, characterized in that: the transposition handle is provided with a sealing gasket which blocks the rear end of the ventilation valve rod in a clamping state.
3. The detection clamp for the bellows airtightness rapid detection apparatus according to claim 2, characterized in that: the inner opening of the clamping jaw is an arc bayonet matched with the outer wall of the wave trough of the corrugated pipe in shape.
4. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 3, characterized in that: the outer section of the elastic collet chuck is provided with a conical section matched with the cone of the horn mouth at the front end of the cylinder seat.
5. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 4, characterized in that: the tail cover is embedded at the bottom of the reducing hole of the cylinder seat.
6. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 5, characterized in that: the rear end of the ventilation valve rod is hinged with a transposition handle through a riveting rod; the indexing handle has a clamping position and a release position perpendicular to and parallel to the axial direction of the cylinder base, respectively, and has a cam curved profile which is kept in contact with the tail cover at the bottom of the cylinder base.
7. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 6, characterized in that: and the external thread of the end part of the front end reducing section of the ventilation valve rod penetrates out of the spacer ring and then is provided with a locking nut which presses the front surface of the spacer ring through a sealing plug and a metal gasket.
8. The detection clamp for the corrugated pipe air tightness rapid detection device according to claim 7, characterized in that: the reducing hole of the cylinder seat is inserted with an O-shaped sealing ring which is distributed at intervals to form a ventilation valve rod of a sealing moving pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144867.0A CN113740007B (en) | 2021-09-28 | 2021-09-28 | Bellows gas tightness short-term test device is with detecting anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144867.0A CN113740007B (en) | 2021-09-28 | 2021-09-28 | Bellows gas tightness short-term test device is with detecting anchor clamps |
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| Publication Number | Publication Date |
|---|---|
| CN113740007A true CN113740007A (en) | 2021-12-03 |
| CN113740007B CN113740007B (en) | 2024-07-12 |
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| CN202111144867.0A Active CN113740007B (en) | 2021-09-28 | 2021-09-28 | Bellows gas tightness short-term test device is with detecting anchor clamps |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323498A (en) * | 2021-12-22 | 2022-04-12 | 浙江久立特材科技股份有限公司 | Airtight air pressure test device of fin heat exchange tube |
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|---|---|---|---|---|
| JPH0933380A (en) * | 1995-07-20 | 1997-02-07 | Furukawa Electric Co Ltd:The | Bellows expansion pipe fitting |
| CN105738051A (en) * | 2016-04-05 | 2016-07-06 | 苏州盟川自动化科技有限公司 | Bellows airtightness detection device and detection method therefor |
| CN105841900A (en) * | 2016-04-05 | 2016-08-10 | 苏州盟川自动化科技有限公司 | Corrugated pipe airtightness detection tool |
| KR20170046041A (en) * | 2015-10-20 | 2017-04-28 | 미래이앤시주식회사 | Defect section detection apparatus for plastic corrugated pipe and defect section detection method using the same |
| CN108692892A (en) * | 2018-06-28 | 2018-10-23 | 芜湖泰和管业股份有限公司 | A kind of device for detecting airtightness of corrugated tube and detection method |
| CN208399095U (en) * | 2018-07-31 | 2019-01-18 | 玉环县金龙欧浴洁具有限公司 | A kind of bellows test warning device |
| CN216207370U (en) * | 2021-09-28 | 2022-04-05 | 航天晨光股份有限公司 | Bellows gas tightness short-term test device is with detecting anchor clamps |
-
2021
- 2021-09-28 CN CN202111144867.0A patent/CN113740007B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0933380A (en) * | 1995-07-20 | 1997-02-07 | Furukawa Electric Co Ltd:The | Bellows expansion pipe fitting |
| KR20170046041A (en) * | 2015-10-20 | 2017-04-28 | 미래이앤시주식회사 | Defect section detection apparatus for plastic corrugated pipe and defect section detection method using the same |
| CN105738051A (en) * | 2016-04-05 | 2016-07-06 | 苏州盟川自动化科技有限公司 | Bellows airtightness detection device and detection method therefor |
| CN105841900A (en) * | 2016-04-05 | 2016-08-10 | 苏州盟川自动化科技有限公司 | Corrugated pipe airtightness detection tool |
| CN108692892A (en) * | 2018-06-28 | 2018-10-23 | 芜湖泰和管业股份有限公司 | A kind of device for detecting airtightness of corrugated tube and detection method |
| CN208399095U (en) * | 2018-07-31 | 2019-01-18 | 玉环县金龙欧浴洁具有限公司 | A kind of bellows test warning device |
| CN216207370U (en) * | 2021-09-28 | 2022-04-05 | 航天晨光股份有限公司 | Bellows gas tightness short-term test device is with detecting anchor clamps |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323498A (en) * | 2021-12-22 | 2022-04-12 | 浙江久立特材科技股份有限公司 | Airtight air pressure test device of fin heat exchange tube |
| CN114323498B (en) * | 2021-12-22 | 2024-04-12 | 浙江久立特材科技股份有限公司 | Airtight air pressure test device of fin heat exchange tube |
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| Publication number | Publication date |
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| CN113740007B (en) | 2024-07-12 |
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