CN114923636A - Thread leakage detection device with adaptation function - Google Patents
Thread leakage detection device with adaptation function Download PDFInfo
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- CN114923636A CN114923636A CN202210556493.1A CN202210556493A CN114923636A CN 114923636 A CN114923636 A CN 114923636A CN 202210556493 A CN202210556493 A CN 202210556493A CN 114923636 A CN114923636 A CN 114923636A
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
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Abstract
The application discloses screw thread device that leaks hunting with adaptation function includes: a fixed platform configured as a horizontal operating table; the leakage detecting piece is used for detecting the leakage of the threaded hole in the workpiece; a support for supporting the workpiece so that the workpiece can be placed on the fixed platform; the main fixing piece is used for fixing the placing position of the workpiece; the auxiliary fixing piece is used for assisting the main fixing piece to fix the placing position of the limiting workpiece; the limiting piece is used for limiting the placing position of the workpiece; and the pressing piece is used for pressing the workpiece so as to press the threads on the workpiece and the leakage detection piece. The application has the advantages that: the thread leakage detection device with the adaptation function is provided, and the thread leakage detection device enables a support piece and the like to be fixed after displacement at any point in a certain range and is adapted to more workpieces with different specifications and sizes through the arrangement of the adjusting device.
Description
Technical Field
The application relates to the field of workpiece testing, in particular to a thread leakage detection device with an adaptive function.
Background
The chassis generally refers to a housing used for various electronic products. According to the application, the method can be divided into: computer casing, TV casing, cell phone casing, instrument casing motor casing, micro motor casing, etc. The casing can be divided into a plastic casing, an alloy casing, a composite material casing and the like according to materials, and the casing is generally provided with a threaded hole for mounting the casing.
The traditional leak detection method is to adopt an air gun to add water to observe the bubbling state of the back of the thread, thereby screening out unqualified products. The method has the advantages of slow measurement, pressure relief, incapability of meeting the standard requirement of air pressure, inconvenience for single-person operation, easiness in misjudgment of products and incapability of matching with workpieces of more types.
At present, a detection device capable of conveniently testing a plurality of types of machine shells does not exist.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
To solve the technical problems mentioned in the background section above, some embodiments of the present application provide a thread leakage detecting device with an adaptive function, including: a fixed platform configured as a horizontal operating table; the leakage detecting piece is used for detecting a threaded hole in the workpiece; a support for supporting the workpiece so that the workpiece can be placed on the fixed platform; the main fixing piece is used for fixing the placing position of the workpiece; the auxiliary fixing piece is used for assisting the main fixing piece to limit the placing position of the workpiece; the limiting piece is used for limiting the placing position of the workpiece; the pressing piece is used for pressing the workpiece so as to enable the threads on the workpiece to be pressed with the leakage detection piece; the thread leakage detecting device with the adaptation function further comprises: an adjustment device; the adjusting device comprises a rotating rod for changing the position of the supporting piece, an adjusting block for connecting the supporting piece and the rotating rod, a stud for pressing the adjusting block, a pressing piece for assisting in pressing the adjusting block, a rotation stopping block for stopping the rotating rod, a pressure strip for pushing the rotation stopping block to stop the rotating rod, and a limiting block for connecting the pressure strip and the stud; wherein, the rotary rod is rotatably arranged on the fixed platform; the adjusting block is arranged on the rotating rod in a sliding manner along the length direction of the rotating rod; the stud is fixedly connected to the adjusting block; the pressing block is connected to the stud in a threaded manner; the rotation stopping block is movably arranged on the fixed platform, a rotation stopping groove is arranged on the fixed platform, and the rotation stopping block is inserted into the rotation stopping groove; the pressure bar is vertically arranged on the rotating rod in a sliding manner; the limiting block and the stud 113 rotate circumferentially and are in axial limiting rotary connection.
Furthermore, a moving sliding groove is formed in the rotating rod, the adjusting block slides in the moving sliding groove, and the moving sliding groove is parallel to the length direction of the rotating rod.
Furthermore, a fixed sliding groove is formed in the rotating rod, the pressing block slides in the fixed sliding groove, and the fixed sliding groove is parallel to the length direction of the rotating rod.
Furthermore, a limiting sliding groove is formed in the pressure strip, the limiting block slides in the limiting sliding groove, and the limiting sliding groove is parallel to the length direction of the rotating rod.
Further, the screw thread leakage detecting device with the adaptation function further comprises: a lifting mechanism; the lifting mechanism comprises: the lifting part is used for adjusting the height of the supporting part, the anti-falling part is used for preventing the lifting part from falling off, and the indicating part is used for indicating the lifting height of the supporting part; wherein, the ascending piece is connected to the adjusting block by screw thread; the anti-falling piece is fixedly connected to the adjusting block; the indicating piece is fixedly connected to the adjusting block.
Furthermore, the indicating part is provided with scales, and the scales extend from bottom to top on the indicating part.
Further, the anti-dropping part is divided into a guide part and a limiting part; the projection area of the limiting part on the upper surface of the fixed platform is larger than that of the guide part on the upper surface of the fixed platform.
Furthermore, adjusting devices are arranged on the leakage detection device, the main fixing piece, the auxiliary fixing piece, the limiting piece and the pressing piece.
Furthermore, the leakage detection device, the main fixing piece, the auxiliary fixing piece, the limiting piece and the pressing piece are all provided with lifting mechanisms.
The beneficial effect of this application lies in: the thread leakage detecting device with the adaptation function is provided, and the thread leakage detecting device enables a support piece and the like to be fixed after displacement at any point within a certain range and is adapted to more workpieces with different specifications and sizes through the arrangement of the adjusting device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.
Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
In the drawings:
FIG. 1 is an overall schematic view of a thread leak testing device with an adaptation function according to an embodiment of the present application;
FIG. 2 is an overall view of the thread leakage detecting device with adaptive function shown in FIG. 1 after the workpiece is hidden;
FIG. 3 is a partial internal schematic view of the thread leak testing device of FIG. 2 with an adapting function;
FIG. 4 is a schematic view of the internal structure of the thread leakage detecting device with the adapting function shown in FIG. 1;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5;
FIG. 7 is an overall schematic view of a compression member according to an embodiment of the present application;
FIG. 8 is an overall schematic view of a stop according to an embodiment of the present application;
fig. 9 is an overall schematic view of a release preventing member according to an embodiment of the present application.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for the convenience of description, only the parts relevant to the present application are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 9, a thread leakage detecting device 100 with an adapting function of the present application includes: the device comprises a fixed platform 100a, a support 101, a main positioning piece 102, a secondary positioning piece 103, a limiting piece 104, a pressing piece 105, a leakage detection piece 106 and a fixing piece 102 a.
The fixed platform 100a is configured as a horizontal operating table; a support 101 is provided on the fixed platform 100a, the support 101 being configured as a post to mate with a workpiece; the main positioning piece 102 is arranged on the fixed platform 100 a; the auxiliary positioning member 103 is arranged on the fixed platform 100 a; the limiting member 104 is disposed on the fixing platform 100 a; the pressing piece 105 is arranged on the fixed platform 100 a; the leakage detecting piece 106 is arranged on the fixed platform 100 a; the fixing parts 102a are arranged on the upper end surfaces of the main positioning part 102 and the auxiliary positioning part 103.
When the side leakage of the threaded hole on the workpiece is to be carried out, an operator firstly places the workpiece aligning support piece 101, the main positioning piece 102 and the auxiliary positioning piece 103 on the fixed platform 100a, inserts the leakage detection piece 106 into the threaded hole needing side leakage, then starts the leakage detection piece 106, fills soap water on the outer surface of the threaded hole, observes whether a new bubble is generated or not, and detects the situation
3 whether the threaded hole leaks air or not, and the operation is convenient.
The fixing member 102a is configured in a rod shape, and a projected area of the fixing member 102a on the fixing platform 100a is smaller than a projected area of the main positioning member on the fixing platform 100 a.
The pressing member 105 is disposed between the main positioner 102 and the sub positioner 103.
The pressing member 105 includes: a power unit 105a and a pressing unit 105 b; the power part 105a is arranged on the fixed platform 100a, the output end of the power part moves up and down along the vertical direction, and the power part 105a is a hydraulic cylinder; the pressing portion 105b is hinged to the output end of the hydraulic cylinder, and the pressing portion 105b is configured as a pressing rod shaped like a rectangular parallelepiped.
The thread leakage detecting device 100 further includes: a connector 105c, the connector 105c comprising: a fixed portion 105e and a connecting portion 105 f; the fixing portion 105e is fixedly connected to the fixing platform 100 a; the connecting portion 105f is hinged to the fixing portion 105e, and the connecting portion 105f is hinged to the pressing portion 105 b.
When the workpiece is aligned and placed on the fixed platform 100a, the operator starts the power part 105a, the power part is matched with the connecting part 105f to drive the pressing part 105b to rotate and swing, and the pressing part 105b presses the workpiece to prevent the workpiece from shaking and dislocating.
The leak detector 106 includes: a support portion 106a and an insertion portion 106 b; the supporting portion 106a abuts against the fixed platform 100a, and the supporting portion 106a is provided with an air hole 105 d; an insertion portion 106b is provided on the support portion 106a, the insertion portion 106b being configured as a short rod having a maximum cross-sectional area smaller than that of the upper end surface of the support portion 106 a.
The insertion portion 106b is provided with a through hole 106c communicating with the air hole 105 d.
The fixing platform 100a is provided with a passage 106d communicating with the air hole 105 d.
After the workpiece is completely fixed, an operator connects an air pump to the opening of the passage 106d to blow air into the passage 106d, and the air finally enters the threaded hole; through the arrangement of the short rod of which the maximum cross-sectional area is smaller than that of the upper end face of the supporting part 106a, the inserting part 106b is constructed, so that air cannot leak when the threaded hole is blown, air cannot be discharged from the broken part of the threaded hole due to insufficient air pressure in the threaded hole, and the detection accuracy is improved.
An elastic member 106e is disposed at a connection position of the supporting portion 106a and the fixed platform 100a, the elastic member 106e is a spring, one end of the spring is fixedly connected to the supporting portion 106a, and the other end of the spring is fixedly connected to an inner wall of the channel.
When the workpiece is placed on the fixed platform 100a, the workpiece presses the supporting portion 106a to move downward, and the elastic member 106e pushes the supporting portion 106a to be in close contact with the workpiece, so as to prevent air leakage.
A guide 106f is slidably connected to the support portion 106a, and the guide 106f is fixedly connected to the fixed platform 100 a.
When the support portion 106a slides up and down, the guide 106f moves relative to the support portion 106a, sealing the through groove 105d from air leakage.
The limiting member 104 includes a bottom portion 104a and a locking portion 104 b; the bottom 104a is arranged on the fixed platform 100 a; clamping part
4104b is disposed on the bottom 104a, and the side surface of the locking portion 104b is closely attached to the workpiece.
The side face of the clamping part 104b is tightly attached to the workpiece, so that the workpiece is positioned and limited, the workpiece is prevented from shaking, and the detection precision is improved.
The screw thread leak detection device 100 with the adaptation function further comprises an adjusting device 110; the adjusting device 110 includes: a rotating rod 111, an adjusting block 112, a stud 113, a pressing block 114, a rotation stopping block 115, a pressure strip 116 and a limiting block 117; the fixed platform 100a is provided with a ring slot 200, a fixed shaft 201 is fixed at the center of the ring slot 200, the rotating rod 111 is rotatably sleeved outside the fixed shaft 201, one end of the rotating rod 111, which is far away from the fixed shaft 201, is abutted against the side wall of the rotating slot 200, the rotating rod 111 is provided with a moving chute 118 and a fixed chute 119, the fixed chute 119 is arranged in an inverted T-shaped groove, and the fixed chute 119 is communicated with the moving chute 118 up and down; the movable chute 118, the fixed chute 119 and the limiting chute 121 are all arranged in parallel with the length direction of the rotary rod 111; the adjusting block 112 is slidably arranged in the moving chute 118; the stud 113 is fixedly connected to the adjusting block 112; the pressing block 114 is slidably arranged in the fixed chute 119, and the pressing block 114 is in threaded connection with the stud 113; the anti-rotation block 115 is arranged in an inverted cone shape, the outer surface of the inverted cone is arranged in a rough manner, the bottom surface of the ring groove 200 is provided with an anti-rotation groove 120, the anti-rotation groove 120 is arranged in a cone shape and matched with the anti-rotation block 115, and the surface of the anti-rotation groove 120 is arranged in a rough manner; the rotating rod 111 is provided with a sliding chute for the pressure bar 116 to slide up and down, two side surfaces of the pressure bar 116 are abutted against two end surfaces of the sliding chute, the pressure bar 116 is fixedly connected with the rotation stopping block 115, the pressure bar 116 is provided with a limiting sliding chute 121, and the limiting sliding chute 121 is an inverted T-shaped groove; the limiting block 117 is slidably disposed in the limiting sliding groove 121, and the limiting block 117 and the stud 113 rotate circumferentially and are in axial limiting rotary connection.
After the specification of the workpiece is changed, an operator can adjust the supporting member 101 and the like to adapt to workpieces with different specifications and sizes according to the specific specification and size of the workpiece, when the relative position of the supporting member 101 is to be adjusted, the operator rotates the adjusting block 112, the adjusting block 112 drives the stud 113 to rotate, under the action of the pressing block 114, the gap between the adjusting block 112 and the pressing block 114 is increased, the friction force between the adjusting block 112 and the lower end surface of the moving chute 118 is reduced, then the adjusting block 112 is slid to drive the supporting member 101 to move to a proper position, when the gap between the adjusting block 112 and the pressing block 114 is increased, the stud 113 drives the limiting block 117 to move upwards, the limiting block 117 drives the pressure bar 116 to move upwards, the pressure bar 116 drives the rotation stopping block 115 to move upwards, so that the surface of the pressure bar 116 is separated from the inner wall of the rotation stopping groove 120, no friction force exists between the surface of the pressure bar and the rotation stopping of the counter-rotating roller 111 is cancelled, and the rotating roller 111 can be rotated, drive support piece 101 to suitable position, and this support piece 101 can be in order to change the centre of rotation of rod 111 as the centre of a circle, and the length of changeing rod 111 is that displacement is fixed for arbitrary a little in the radial square circle distance to can the more different work pieces of specification and dimension of adaptation, and only need just can be simultaneously to support piece 101 slip and change rod 111's rotation through rotatory regulating block 112 and do spacing fixed, simple structure, convenient operation.
The thread leakage detecting device with the adaptation function further comprises: a lifting mechanism 122; the lifting mechanism 122 includes a lifting member 123,
5-a release preventing member 124, an indicating member 125; the ascending piece 123 is connected to the adjusting block 112 through screw threads; the anti-falling part 124 is fixedly connected to the adjusting block 112, the anti-falling part 124 is divided into a guiding part 124a and a limiting part 124b, and the projection area of the limiting part 124b in the height direction of the rotating rod 111 is larger than the projection area of the guiding part 124a in the height direction of the rotating rod 111; the indicating piece 125 is fixedly connected to the adjusting block 112, and scales for indicating the upward moving height of the supporting piece 101 are marked on the indicating piece 125 and extend from bottom to top on the indicating piece; the supporting member 101 is vertically slidably provided on the anti-slip member 124, and the bottom surface of the supporting member 101 abuts against the upper end surface of the adjusting block 112.
When the height of the supporting member 101 is to be adjusted, the operator rotates the supporting member 101, and the supporting member 101 drives the ascending member 123 to rotate and move upwards, so that the ascending member 123 and the supporting member 101 are prevented from being completely separated from the adjusting block 112, and after the ascending member 123 rotates and moves upwards to a certain height, the ascending member 123 abuts against the bottom surface of the limiting portion 124 b.
The leak detector 106, the main positioning element 102, the sub positioning element 103, the limiting element 104 and the pressing element 105 are all provided with a lifting mechanism 122 and an adjusting device 110.
The leakage detecting piece 106, the main positioning piece 102, the auxiliary positioning piece 103, the limiting piece 104 and the pressing piece 105 can be adjusted in position on the fixed platform 100a, so that the matching support piece 101 can be matched with workpieces with more specifications and sizes conveniently.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) the features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.
Claims (9)
1. A thread leakage detection device with an adaptation function, comprising:
a fixed platform configured as a horizontal operating table;
the leakage detecting piece is used for detecting the leakage of the threaded hole in the workpiece;
a support for supporting the workpiece so that the workpiece can be placed on the fixed platform;
the main fixing piece is used for fixing the placing position of the workpiece;
the auxiliary fixing piece is used for assisting the main fixing piece to limit the placing position of the workpiece;
the limiting piece is used for limiting the placing position of the workpiece;
the pressing piece is used for pressing the workpiece so as to enable the threads on the workpiece to be pressed with the leakage detection piece;
the method is characterized in that:
the thread leakage detecting device with the adapting function further comprises:
an adjustment device; the adjusting device comprises a rotating stick for changing the position of the supporting piece, an adjusting block for connecting the supporting piece and the rotating stick, a stud for pressing the adjusting block, a pressing piece for assisting in pressing the adjusting block, a rotation stopping block for stopping rotation of the rotating stick, a pressure strip for pushing the rotation stopping block to stop rotation of the rotating stick, and a limiting block for connecting the pressure strip and the stud;
wherein, the rotating stick is rotatably arranged on the fixed platform; the adjusting block is arranged on the rotating rod in a sliding manner along the length direction of the rotating rod; the stud is fixedly connected to the adjusting block; the pressing block is in threaded connection with the stud; the rotation stopping block is movably arranged on the fixed platform, a rotation stopping groove is formed in the fixed platform, and the rotation stopping block is inserted into the rotation stopping groove; the pressure bar is vertically arranged on the rotary rod in a sliding manner; the limiting blocks and the studs 113 rotate circumferentially and are in axial limiting rotary connection.
2. The thread leakage detection device with adaptation function according to claim 1, wherein: the rotary rod is provided with a moving chute, the adjusting block slides in the moving chute, and the moving chute is parallel to the length direction of the rotary rod.
3. The thread leakage detection device with adaptation function according to claim 2, wherein: the rotary rod is provided with a fixed sliding chute, the pressing block slides in the fixed sliding chute, and the fixed sliding chute is parallel to the length direction of the rotary rod.
4. The thread leakage detection device with adaptation function according to claim 3, wherein: the pressure strip is provided with a limiting sliding groove, the limiting block slides in the limiting sliding groove, and the limiting sliding groove is parallel to the length direction of the rotating rod.
5. The thread leakage detection device with adaptation function according to claim 1, wherein: the thread leakage detection device with the adaptation function further comprises: a lifting mechanism; the lifting mechanism includes: a rising member for adjusting the height of the support member, a dislocation preventing member for preventing dislocation of the rising member, and an indicating member for indicating the rising height of the support member;
wherein the ascending piece is in threaded connection with the adjusting block; the anti-falling piece is fixedly connected to the adjusting block; the indicating piece is fixedly connected to the adjusting block.
6. The thread leakage detection device with adaptation function according to claim 5, characterized in that: the indicating piece is provided with scales, and the scales extend from bottom to top on the indicating piece.
7. The thread leakage detection device with adaptation function according to claim 6, wherein: the anti-falling part is divided into a guide part and a limiting part; the projection area of the limiting part on the upper surface of the fixed platform is larger than that of the guide part on the upper surface of the fixed platform.
8. The thread leakage detection device with adaptation function according to claim 7, wherein: and the leakage detection device, the main fixing piece, the auxiliary fixing piece, the limiting piece and the pressing piece are all provided with adjusting devices.
9. The thread leakage detection device with adaptation function according to claim 7, wherein: and the leakage detection device, the main fixing piece, the auxiliary fixing piece, the limiting piece and the pressing piece are all provided with a lifting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556493.1A CN114923636B (en) | 2022-05-20 | 2022-05-20 | Screw thread leak hunting device with adaptation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556493.1A CN114923636B (en) | 2022-05-20 | 2022-05-20 | Screw thread leak hunting device with adaptation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114923636A true CN114923636A (en) | 2022-08-19 |
| CN114923636B CN114923636B (en) | 2024-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210556493.1A Active CN114923636B (en) | 2022-05-20 | 2022-05-20 | Screw thread leak hunting device with adaptation function |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809466A (en) * | 2011-06-02 | 2012-12-05 | 海洋王照明科技股份有限公司 | Tool and method for detecting sand holes in threaded hole |
| CN105043691A (en) * | 2015-09-07 | 2015-11-11 | 安徽江淮汽车股份有限公司 | Automatic gearbox shell oil duct air tightness detection tool |
| KR20160000213A (en) * | 2014-06-24 | 2016-01-04 | 삼성중공업 주식회사 | Leakage test apparatus |
| CN210269062U (en) * | 2019-08-08 | 2020-04-07 | 苏州丹杬建筑科技有限公司 | Quick leak detector for threaded blind hole |
| CN215296567U (en) * | 2021-07-09 | 2021-12-24 | 北京哲勤科技有限公司 | Sealing device for leak detection workpiece |
-
2022
- 2022-05-20 CN CN202210556493.1A patent/CN114923636B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809466A (en) * | 2011-06-02 | 2012-12-05 | 海洋王照明科技股份有限公司 | Tool and method for detecting sand holes in threaded hole |
| KR20160000213A (en) * | 2014-06-24 | 2016-01-04 | 삼성중공업 주식회사 | Leakage test apparatus |
| CN105043691A (en) * | 2015-09-07 | 2015-11-11 | 安徽江淮汽车股份有限公司 | Automatic gearbox shell oil duct air tightness detection tool |
| CN210269062U (en) * | 2019-08-08 | 2020-04-07 | 苏州丹杬建筑科技有限公司 | Quick leak detector for threaded blind hole |
| CN215296567U (en) * | 2021-07-09 | 2021-12-24 | 北京哲勤科技有限公司 | Sealing device for leak detection workpiece |
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| Publication number | Publication date |
|---|---|
| CN114923636B (en) | 2024-10-18 |
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