CN209945636U - Aerospace part air tightness detection device - Google Patents
Aerospace part air tightness detection device Download PDFInfo
- Publication number
- CN209945636U CN209945636U CN201920701098.1U CN201920701098U CN209945636U CN 209945636 U CN209945636 U CN 209945636U CN 201920701098 U CN201920701098 U CN 201920701098U CN 209945636 U CN209945636 U CN 209945636U
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- Prior art keywords
- water cavity
- sucker
- compression cylinder
- pipe
- connector
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000006835 compression Effects 0.000 claims abstract description 37
- 238000007906 compression Methods 0.000 claims abstract description 37
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a device for detecting the air tightness of aerospace parts, which comprises a sucker, a rubber ring, a gas delivery pipe, a water cavity, a compression cylinder, an air exhaust cylinder, a handle, a check valve, a plug, a connector and pipe threads; the rubber ring is connected to the lower end of the sucker through glue joint, and the sucker is connected to one end of the gas pipe through interference fit; the lower end of the water cavity is connected to one end of the gas transmission pipe in an interference fit manner, and the upper end of the water cavity is connected to the lower end of the connector through gluing; the upper end of the connector is connected with a compression cylinder through threads, and the upper end of the compression cylinder is connected with an air suction cylinder in the prior art through a gas pipe; in summary, compared with the existing air tightness detection device, the air tightness detection device has the advantages that the function of easily observing bubbles generated in the water cavity when leakage occurs is added, even a very small leakage situation can be observed, the precision of detection of the air tightness detection device is increased, and the structure is simpler.
Description
Technical Field
The utility model belongs to gas tightness detection area, more specifically say, in particular to aerospace spare part gas tightness detection device.
Background
The air tightness detection device is specially applied to the device for detecting the air tightness of cavity mechanical products and is mainly used in the production of automobile engines, gearboxes, axles, water tanks, oil tanks and the like with sealing requirements on containing cavities.
The present chinese utility model patent, for example, with patent number CN201821254236.8, discloses a hydraulic tube airtightness detection device, which is basically described as: the device includes that the gas tightness detects the main part, the gas tightness detects the upper end external surface fixedly connected with curb plate of main part, the front end external surface fixedly connected with fan of curb plate, the gas tightness detects the rear end internal surface fixed mounting of main part and has first slide rail, the inside movable mounting of first slide rail has first baffle, the front end external surface fixedly connected with first sleeve of first baffle, the first telescopic inside fixedly connected with lead screw, the front end surface parcel of first lead screw has the hollow section of thick bamboo of second.
Based on the above patent description, it can be seen that the air tightness detection device similar to this patent is complicated in structure, inconvenient in operation, not suitable for air tightness detection after aerospace part installation, unable to detect thin part seal, and inconvenient in observation.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a device for detecting the air tightness of aerospace components is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a aerospace spare part gas tightness detection device to the solution is similar to in this patent gas tightness detection device structure complicated, operates inconveniently, is not suitable for the gas tightness after the aerospace part installation to detect, can not detect thinner part sealed, the problem of observation of being not convenient for.
The utility model relates to a purpose and efficiency of aerospace spare part gas tightness detection device is reached by following concrete technical means:
a device for detecting the air tightness of aerospace parts comprises a sucker, a rubber ring, a gas pipe, a water cavity, a compression cylinder, an exhaust cylinder, a handle, a one-way valve, a plug, a connector and pipe threads; the rubber ring is connected to the lower end of the sucker through glue joint, and the sucker is connected to one end of the gas pipe through interference fit; the lower end of the water cavity is connected to one end of the gas transmission pipe in an interference fit manner, and the upper end of the water cavity is connected to the lower end of the connector through gluing; the upper end of the connector is connected with a compression cylinder through threads, and the upper end of the compression cylinder is connected with an air suction cylinder in the prior art through a gas pipe; the inside lower extreme in water cavity installs prior art's check valve, and the upper end opening part in water cavity installs the stopper.
Furthermore, the sucker is a semicircular thin plate, and the upper end of the sucker is provided with a vent hole.
Furthermore, the water cavity is a hollow cone made of transparent materials, and through holes are formed in the upper end and the lower end of the water cavity.
Furthermore, the compression cylinder is a cylinder, a through hole is formed in the top of the compression cylinder, and pipe threads are machined on the inner wall of the bottom of the compression cylinder.
Furthermore, the upper end of the connector is processed with pipe threads.
Compared with the prior art, the utility model discloses following beneficial effect has:
this design has carried out the improvement on the structure on the basis of current aerospace spare part gas tightness detection device, mainly embodies: the lower end of the sucker of the structure is provided with a rubber ring to prevent the leakage at the joint of the sucker and the detected part, the sucker of the structure is semicircular and can adapt to the raised structure on the surface of the bolt connection or the screw connection of the detected equipment, a small amount of water is added into the water cavity of the structure, the outer wall of the water cavity is made of transparent material, when bubbles emerge from the water in the water cavity, the situation that the detected part is leaked is shown, after the air in the compression cylinder of the structure is sucked away by the air suction cylinder, the air pressure in the compression cylinder is smaller than the external atmospheric pressure, so that the air pressure in the sucker and the air conveying pipe is the same as the atmospheric pressure in the compression cylinder, if the leakage occurs, the air in the sucker can escape into the compression cylinder and can be observed when passing through the water cavity, and the pipe thread is more suitable for the occasion of sealing connection, in conclusion, compared with the existing air tightness detection device, the air leakage can be generated in the water cavity, the function of easy observation, even very little condition of revealing can also be observed, has increased the precision that the detection of confidentiality detection device is detected, and the structure is simpler.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the water chamber of the present invention.
Fig. 3 is a schematic view of the structure of the suction cup of the present invention.
Fig. 4 is a schematic view of the structure of the connection head of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a suction cup; 2. a rubber ring; 3. a gas delivery pipe; 4. a water chamber; 5. a compression cylinder; 6. an air pumping cylinder; 7. a handle; 8. a one-way valve; 9. a plug; 10. a connector; 11. pipe threads.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 4:
the utility model provides a device for detecting the air tightness of aerospace parts, which comprises a sucker 1, a rubber ring 2, a gas pipe 3, a water cavity 4, a compression cylinder 5, an air exhaust cylinder 6, a handle 7, a one-way valve 8, a plug 9, a connector 10 and a pipe thread 11; the rubber ring 2 is connected to the lower end of the sucker 1 through glue joint, and the sucker 1 is connected to one end of the gas pipe 3 through interference fit; the lower end of the water cavity 4 is connected with one end of the gas transmission pipe 3 in an interference fit manner, and the upper end of the water cavity 4 is connected with the lower end of the connector 10 through gluing; the upper end of the connector 10 is connected with a compression cylinder 5 through threads, and the upper end of the compression cylinder 5 is connected with an air suction cylinder 6 in the prior art through an air delivery pipe 3; the inside lower extreme in water cavity 4 is installed prior art's check valve 8, and the upper end opening part in water cavity 4 installs stopper 9.
The sucker 1 with the structure is shown in fig. 3, the semicircular sucker 1 can adapt to a protruding structure on the surface of the detected equipment after being connected by bolts or screws, and the leakage condition of the detection device can be further reduced by the rubber ring 2 at the bottom.
Wherein, water cavity 4 is transparent material's inside hollow cone, and the upper and lower both ends of water cavity 4 all opened the through-hole, pull out water cavity 4 top stopper 9, add appropriate amount water in the water cavity 4, the back is siphoned away to the air in the pump bowl 6 with equipment, atmospheric pressure in the equipment is less than external atmospheric pressure, if take place to leak, gas in the sucking disc 1 will run in order to keep the atmospheric pressure in the equipment equal in the great compression section of thick bamboo 5 in space, so just explain when the bubble appears and emerge from the aquatic in the water cavity 4 the condition that is detected the part and has the leakage appears, more be convenient for observe.
The compression cylinder 5 is a cylinder, the top of the compression cylinder 5 is provided with a through hole, the inner wall of the bottom of the compression cylinder 5 is provided with a pipe thread 11, the compression cylinder 5 with the structure is shown in fig. 2, the larger the space of the compression cylinder 5 is, the more the gas in the suction cup 1 flows into the compression cylinder 5 when leakage occurs, and the more the bubbles in the water cavity 4 are.
Wherein, the upper end processing of connector 10 has pipe thread 11, twists down a compression section of thick bamboo 5 from connector 10 before the use equipment, takes off stopper 9, can add water in water cavity 4 from the hole and turn round a compression section of thick bamboo 5 tightly again, can be plugged up stopper 9 after the use, the next use of being convenient for, pipe thread 11 adapts to sealing connection's occasion more easily.
The specific use mode and function of the embodiment are as follows:
in the utility model, the compression cylinder 5 is twisted down from the connector 10 to take the plug 9 off, a small amount of water is added into the water cavity 4, the check valve 8 prevents the water from flowing into the gas pipe 3, the compression cylinder 5 is twisted tightly, the sucker 1 is buckled on the surface of the joint of the part to be detected, the sucker 1 is pressed by hand to prevent the instrument leakage from causing unnecessary experimental error, the reciprocating handle 7 is used for exhausting part of air in the equipment by the air exhaust cylinder 6, the air pressure in the compression cylinder 5 is less than the external atmospheric pressure, the air pressure in the sucker 1 and the gas pipe 3 is the same as the atmospheric pressure in the compression cylinder 5, the equipment is calm, if leakage occurs, the gas in the sucker 1 can run into the compression cylinder 5, the gas can be observed when flowing through the water cavity 4, if no bubble indicates that the sealing performance of aviation parts is good, in sum up, it can be seen that the air tightness detecting device increases the generation of bubbles in the water cavity 4 when leakage occurs, the function of easy observation, even very little condition of revealing can also be observed, has increased the precision that the detection of confidentiality detection device is detected, and the structure is simpler.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The utility model provides a space flight spare part gas tightness detection device which characterized in that: the aerospace part air tightness detection device comprises a sucker (1), a rubber ring (2), an air delivery pipe (3), a water cavity (4), a compression cylinder (5), an air suction cylinder (6), a handle (7), a one-way valve (8), a plug (9), a connector (10) and pipe threads (11); the rubber ring (2) is connected to the lower end of the sucker (1) through glue joint, and the sucker (1) is connected to one end of the gas pipe (3) through interference fit; the lower end of the water cavity (4) is connected to one end of the gas conveying pipe (3) in an interference fit manner, and the upper end of the water cavity (4) is connected to the lower end of the connector (10) through gluing; the upper end of the connector (10) is connected with a compression cylinder (5) through threads, and the upper end of the compression cylinder (5) is connected with an air suction cylinder (6) in the prior art through an air delivery pipe (3); a check valve (8) in the prior art is installed at the lower end of the inside of the water cavity (4), and a plug is installed at an opening at the upper end of the water cavity (4).
2. The aerospace component airtightness detection apparatus according to claim 1, wherein: the sucker (1) is a semicircular thin plate, and the upper end of the sucker (1) is provided with a vent hole.
3. The aerospace component airtightness detection apparatus according to claim 1, wherein: the water cavity (4) is a hollow cone made of transparent materials, and through holes are formed in the upper end and the lower end of the water cavity (4).
4. The aerospace component airtightness detection apparatus according to claim 1, wherein: the compression cylinder (5) is a cylinder, a through hole is formed in the top of the compression cylinder (5), and pipe threads (11) are machined on the inner wall of the bottom of the compression cylinder (5).
5. The aerospace component airtightness detection apparatus according to claim 1, wherein: and pipe threads (11) are machined at the upper end of the connector (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920701098.1U CN209945636U (en) | 2019-05-15 | 2019-05-15 | Aerospace part air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920701098.1U CN209945636U (en) | 2019-05-15 | 2019-05-15 | Aerospace part air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209945636U true CN209945636U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920701098.1U Expired - Fee Related CN209945636U (en) | 2019-05-15 | 2019-05-15 | Aerospace part air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209945636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678655A (en) * | 2020-06-28 | 2020-09-18 | 国家电网有限公司 | Portable gas leakage detection device |
| CN112834127A (en) * | 2021-04-02 | 2021-05-25 | 蔡占河 | Quick air leakage detection device for pressure container |
-
2019
- 2019-05-15 CN CN201920701098.1U patent/CN209945636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678655A (en) * | 2020-06-28 | 2020-09-18 | 国家电网有限公司 | Portable gas leakage detection device |
| CN112834127A (en) * | 2021-04-02 | 2021-05-25 | 蔡占河 | Quick air leakage detection device for pressure container |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 |