CN219870185U - Air tightness detection device for blocking piece - Google Patents
Air tightness detection device for blocking piece Download PDFInfo
- Publication number
- CN219870185U CN219870185U CN202320991830.XU CN202320991830U CN219870185U CN 219870185 U CN219870185 U CN 219870185U CN 202320991830 U CN202320991830 U CN 202320991830U CN 219870185 U CN219870185 U CN 219870185U
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- CN
- China
- Prior art keywords
- detection device
- tightness detection
- air tightness
- push rod
- piston
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000000903 blocking effect Effects 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 claims description 20
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model provides a plugging piece air tightness detection device which comprises a cylinder body, a piston and a push rod, wherein the piston is tightly attached to the inner wall of the cylinder body and can move up and down in the cylinder body, the lower end of the push rod is connected with the piston, and the upper end of the push rod extends out of the cylinder body. The utility model aims to provide a plugging piece air tightness detection device which is simple, practical, convenient to use and low in production cost.
Description
Technical Field
The utility model relates to the technical field of automobile part detection, in particular to a plugging piece air tightness detection device.
Background
In the automobile manufacturing process, the tightness of the automobile body is an important index for evaluating the quality of the whole automobile, and the comfort of a passenger cabin can be directly influenced. Good tightness of the automobile body, reasonable automobile body structural design and coating technology are required, and application of the plugging piece for sealing the automobile body holes is also very important. However, the tightness detection after the installation of the current plugging piece is carried out by performing an experiment and then cutting an experimental sample piece to check the section, or the tightness detection is carried out through an airtight test, so that the convenience and the economy are not realized. For this current situation, patent CN115200805a discloses a portable vehicle body plug sealing performance detecting device, but the device requires external power and has high production cost. Therefore, it is necessary to invent a simple and practical air tightness detection device.
Disclosure of Invention
The utility model aims to provide a plugging piece air tightness detection device which is simple, practical, convenient to use and low in production cost.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a stifled spare gas tightness detection device, includes barrel, piston, push rod, the inner wall of piston and barrel closely laminate and can reciprocate in the barrel, the lower extreme and the piston connection of push rod, the upper end of push rod stretches out outside the barrel.
Further, the lower end of the cylinder body is provided with a sealing head, and the lower end of the sealing head is provided with a sealing ring.
Further, the inside of the sealing ring is hollow, and the cross section of the sealing ring is circular.
Further, the upper end of the sealing head is provided with a connecting ring groove, and the lower end of the cylinder body is clamped with the connecting ring groove and in interference fit with the connecting ring groove.
Further, an annular groove is formed in the middle of the outer circle of the piston.
Further, the upper end of the piston is provided with a T-shaped connecting hole, the lower end of the push rod is provided with a connecting clamping head, and the connecting clamping head is clamped with the T-shaped connecting hole.
Further, the push rod is provided with a plurality of groups of locking pin holes from top to bottom for inserting locking pins.
Further, the upper end of the cylinder body is provided with a limiting guide head which is adaptive to the diameter of the push rod.
Further, a guide ring mounting groove is formed in the inner wall of the limiting guide head, and a guide ring is arranged in the guide ring mounting groove.
Further, the cylinder is made of transparent materials, and scales are arranged on the cylinder.
The utility model has the beneficial effects that: the air tightness detection device for the blocking piece provided by the utility model is convenient for a worker to detect the tightness of the blocking piece installed in the coating and assembly production, and the use method of the device is simple and is convenient for the training of operators; the device has simple structure and lower manufacturing cost; can be used without power, and can be suitable for various scenes.
The utility model will be described in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a front view of a plugging member air tightness detection device according to the present utility model.
Fig. 2 is a cross-sectional view of a plugging member air tightness detecting device according to the present utility model.
FIG. 3 is an exploded view of a device for detecting the air tightness of a blocking member according to the present utility model.
Detailed Description
The device for detecting the air tightness of the blocking piece comprises a cylinder body 1, a piston 3 and a push rod 4, wherein the piston 3 is tightly attached to the inner wall of the cylinder body 1 and can move up and down in the cylinder body 1, the lower end of the push rod 4 is connected with the piston 3, and the upper end of the push rod 4 extends out of the cylinder body 1. The piston 3 and the push rod 4 are both mounted in the cylinder 1 so as to be movable up and down along the axis of the cylinder 1.
Preferably, in combination with the above scheme, the lower end of the cylinder 1 is provided with a sealing head 2, and the lower end of the sealing head 2 is provided with a sealing ring 21.
Preferably, in combination with the above, the seal ring 21 is hollow, and the seal ring 21 has a circular cross section. The seal ring 21 of this structure includes a hollow cavity, and can be attached to the surface of various sheet metal structures.
Preferably, in combination with the above solution, the upper end of the sealing head 2 is provided with a connection ring groove 22, and the lower end of the cylinder 1 is clamped with the connection ring groove 22 and is in interference fit with the connection ring groove 22. The rubber sealing head 2 is glued in the connecting ring groove 22 and then is clamped with the cylinder body 1 so as to ensure tightness.
Preferably, in combination with the above scheme, the middle part of the outer circle of the piston 3 is provided with a ring groove 31. The ring groove 31 can reduce friction on one hand, and on the other hand, the outer circular surface of the piston 3 is divided into an upper part and a lower part, so that two contact surfaces are formed between the piston and the inner wall of the cylinder body 1, two seals are formed, and the air tightness is better.
Preferably, in combination with the above scheme, the upper end of the piston 3 is provided with a T-shaped connecting hole 32, the lower end of the push rod 4 is provided with a connecting chuck 41, and the connecting chuck 41 is clamped with the T-shaped connecting hole 32. Through the structure, firm connection can be ensured, and meanwhile, disassembly, assembly and maintenance are convenient.
Preferably, in combination with the above scheme, in order to limit and lock the movement height of the push rod 4, the push rod 4 is provided with a plurality of groups of locking pin holes 42 from top to bottom for inserting the locking pins 6.
Preferably, in combination with the above scheme, in order to facilitate the limiting and guiding of the up-and-down movement of the push rod 4, the upper end of the cylinder 1 is provided with a limiting guide head 11 adapted to the diameter of the push rod 4.
Preferably, in combination with the above scheme, in order to play a guiding role, the shaking of the push rod 4 is limited, a guiding ring installation groove is formed in the inner wall of the limiting guiding head 11, and a guiding ring 5 is arranged in the guiding ring installation groove.
Preferably, in combination with the above scheme, in order to conveniently observe the movement of the piston 3 in the cylinder 1, the cylinder 1 is made of transparent material, and the cylinder 1 is provided with scales.
When the utility model is used for detecting the air tightness, the piston 3 is pushed to the lowest position firstly, then the sealing ring 21 of the sealing head 2 is attached to the sheet metal wall around the blocking piece, the push rod 4 is pulled upwards to move for a certain distance, then the locking pin 6 is inserted on the push rod 4 to prevent the push rod 4 from moving, the locking pin 6 can be blocked by the limiting guide head 11, the scale corresponding to the piston 3 is recorded, a negative pressure area is formed between the pressure observation cylinder 1 and the sheet metal piece, and the device is adsorbed on the sheet metal piece.
After standing for a period of time, pulling out the locking pin 6, and observing the scale corresponding to the piston 3 again, wherein if the piston 3 can return to the original scale, no air is proved to infiltrate into the cylinder 1 from the hole where the blocking piece is located, and further the air tightness of the blocking piece is proved to be good; if the piston 3 is not moved after the locking pin 6 is pulled out, it is proved that air leaks into the cylinder 1 from the hole where the blocking piece is located, and the sealing of the blocking piece is invalid.
In the description of the present utility model, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "one end", "one side", "both ends", "both sides", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
While the utility model has been described above by way of example with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the specific embodiments described above, but is intended to cover various modifications of the method concepts and technical solutions of the utility model, or applications without modifications, as such are within the scope of the utility model.
Claims (10)
1. The utility model provides a stifled spare gas tightness detection device, its characterized in that includes barrel (1), piston (3), push rod (4), piston (3) and the inner wall of barrel (1) closely laminate and can reciprocate in barrel (1), the lower extreme and the piston (3) of push rod (4) are connected, the upper end of push rod (4) stretches out outside barrel (1).
2. The plugging member air tightness detection device according to claim 1, wherein a sealing head (2) is arranged at the lower end of the cylinder body (1), and a sealing ring (21) is arranged at the lower end of the sealing head (2).
3. The plug tightness detection device according to claim 2, wherein the inside of the seal ring (21) is hollow, and the seal ring (21) has a circular cross section.
4. The plugging member air tightness detection device according to claim 2, wherein the upper end of the sealing head (2) is provided with a connecting ring groove (22), and the lower end of the cylinder body (1) is clamped with the connecting ring groove (22) and is in interference fit with the connecting ring groove (22).
5. The plugging member air tightness detection device according to claim 1, wherein an annular groove (31) is formed in the middle of the outer circle of the piston (3).
6. The plugging piece air tightness detection device according to claim 1, wherein the upper end of the piston (3) is provided with a T-shaped connecting hole (32), the lower end of the push rod (4) is provided with a connecting clamp head (41), and the connecting clamp head (41) is clamped with the T-shaped connecting hole (32).
7. The device for detecting the air tightness of the blocking piece according to claim 1, wherein the push rod (4) is provided with a plurality of groups of locking pin holes (42) from top to bottom for inserting the locking pins (6).
8. The plugging piece air tightness detection device according to claim 1, wherein a limit guide head (11) which is matched with the diameter of the push rod (4) is arranged at the upper end of the cylinder body (1).
9. The plugging member air tightness detection device according to claim 8, wherein a guide ring mounting groove is formed in the inner wall of the limit guide head (11), and a guide ring (5) is arranged in the guide ring mounting groove.
10. The plugging piece air tightness detection device according to claim 1, wherein the cylinder (1) is made of transparent materials, and scales are arranged on the cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991830.XU CN219870185U (en) | 2023-04-27 | 2023-04-27 | Air tightness detection device for blocking piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991830.XU CN219870185U (en) | 2023-04-27 | 2023-04-27 | Air tightness detection device for blocking piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870185U true CN219870185U (en) | 2023-10-20 |
Family
ID=88331315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991830.XU Active CN219870185U (en) | 2023-04-27 | 2023-04-27 | Air tightness detection device for blocking piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870185U (en) |
-
2023
- 2023-04-27 CN CN202320991830.XU patent/CN219870185U/en active Active
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