CN213209373U - Bolt seal detection device - Google Patents
Bolt seal detection device Download PDFInfo
- Publication number
- CN213209373U CN213209373U CN202022045815.5U CN202022045815U CN213209373U CN 213209373 U CN213209373 U CN 213209373U CN 202022045815 U CN202022045815 U CN 202022045815U CN 213209373 U CN213209373 U CN 213209373U
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- Prior art keywords
- bolt
- detector body
- detection device
- internal thread
- seal detection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a bolt seal detection device, which comprises a detector body with a tubular structure; one end of the detector body is provided with an internal thread which is screwed with a screw of the bolt to be detected, and the detector body is provided with an airflow channel which extends along the axial direction and penetrates into the internal thread. This bolt seal detection device ensures through screwing up the internal thread that detector body terminal surface is connected with the stationary plane airtight of waiting to detect the bolt, accesss to the bolt of waiting to detect with the air from the detector body through airflow channel, and then conveniently detects the connection sealing degree of waiting to detect the bolt.
Description
Technical Field
The utility model relates to a fastener detection area especially relates to a bolt seal detection device.
Background
For bolts with sealing requirements, the tightness between the bolt and the fixing surface of the connecting bolt should be checked after projection welding is completed. However, some bolts have short lengths or are welded at corners of products, which makes the sealing test difficult.
As shown in fig. 1, in the prior art, a rubber tube 02 is generally used to sleeve a screw of a bolt 01 to be detected, air is introduced into the rubber tube 02, and the connection tightness of the bolt 01 to be detected is detected by detecting the air tightness between the bolt 01 to be detected and a fixing surface 03 connected with the bolt 01 to be detected. However, because the rubber tube 02 and the fixed surface 03 are not tightly lapped, air can overflow from the lapping gap, which brings trouble to the experimental process and also influences the experimental result.
In summary, how to improve the detection accuracy of the bolt connection tightness becomes a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bolt seal detection device can improve and wait to detect the connection leakproofness of bolt, and then improves and detect the precision.
In order to achieve the above object, the present invention provides a bolt seal detection device, which includes a detector body having a tubular structure; one end of the detector body is provided with an internal thread which is screwed with a screw of the bolt to be detected, and the detector body is provided with an airflow channel which extends along the axial direction and penetrates into the internal thread.
Preferably, the inner cavity wall surface of the detector body provided with the internal thread is provided with at least one groove which penetrates through along the axial direction; the groove forms the airflow channel between the screwed internal thread and the screw.
Preferably, the end face of the detector body close to one end of the internal thread is provided with a sealing part matched with the end face in shape.
Preferably, the sealing part is a rubber ring in a ring shape; the outer diameter of the rubber ring is not larger than the outer diameter of the end face, and the inner diameter of the rubber ring is not smaller than the inner diameter of the end face.
Preferably, an air pipe joint used for being connected with an air-tight seal is arranged at one end, far away from the internal thread, of the detector body.
Preferably, the air pipe joint is connected with an air supply device and a valve; the valve is arranged between the air pipe joint and the air supply device.
Preferably, an air bag for supplying air to the air pipe joint when being pressed is connected to the air pipe joint.
Preferably, the grooves are provided in a plurality of strips; all the grooves uniformly surround the inner cavity wall surface of the detector body.
Preferably, the depth of any one groove is larger than the difference between the major diameter of the screw thread and the minor diameter of the screw thread.
Compared with the prior art, the utility model provides a bolt seal detection device is including the detector body that has the tubular structure.
One end of the detector body is provided with an internal thread, and the bolt sealing detection device is fixedly connected with a screw of the bolt to be detected through the internal thread, so that the end face of the detector body is tightly attached to a fixing face of the bolt to be detected. The detector body is further provided with an airflow channel which extends along the axial direction and penetrates into the internal thread, and air in the detector body flows to the fixing surface of the bolt to be detected through airflow. If the bolt to be detected is connected and fastened with the fixing surface, gas in the gas flow channel is blocked at the fixing surface of the bolt to be detected and cannot flow continuously, but if the bolt to be detected is not connected and fastened with the fixing surface, gas in the gas flow channel leaks from a position between the bolt to be detected and the fixing surface of the bolt to be detected.
To sum up, above-mentioned bolt seal detection device can ensure through internal thread and airflow channel that the terminal surface of detector body and the stationary plane airtight connection who waits to detect the bolt, still has the airflow channel that can supply circulation of air between detector body and the screw rod that waits to detect the bolt, and then conveniently detects the connection sealing degree who waits to detect the bolt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bolt seal detection device provided in the prior art;
fig. 2 is a schematic structural diagram of a bolt seal detection device according to an embodiment of the present invention;
fig. 3 is a partial schematic view of a bolt seal detection device according to an embodiment of the present invention;
fig. 4 is the embodiment of the present invention provides a bolt seal detection device and an assembly diagram of a bolt to be detected.
The device comprises a bolt to be detected 01, a rubber tube 02, a fixing surface 03, a detector body 1, an internal thread 2, a groove 3, an air tube connector 4 and a sealing part 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 4, fig. 1 is a schematic structural diagram of a bolt seal detection device provided in the prior art; fig. 2 is a schematic structural diagram of a bolt seal detection device according to an embodiment of the present invention; fig. 3 is a partial schematic view of a bolt seal detection device according to an embodiment of the present invention; fig. 4 is the embodiment of the present invention provides a bolt seal detection device and an assembly diagram of a bolt to be detected.
The utility model provides a bolt seal detection device, including the detector body 1 that has the tubular structure. The bolt sealing detection device is used for detecting the air tightness between the bolt 01 to be detected and the fixing surface 03 connected with the bolt 01 to be detected.
The detector body 1 is also provided with an airflow channel. The air flow channel extends in the axial direction of the detector body 1 and penetrates into the internal thread 2 at the end of the detector body 1 provided with the internal thread 2, that is, air introduced from one end of the detector body 1 through the air flow channel flows to the other end of the detector body 1 and enters the cavity in the middle of the internal thread 2, and then flows out of the detector body 1 and flows to the fixing surface 03 of the bolt 01 to be detected.
If the screw of the bolt 01 to be detected penetrates into the fixing surface 03 and the nut of the bolt 01 to be detected is tightly attached to the other side of the fixing surface 03, the gas in the gas flow channel is blocked between the bolt 01 to be detected and the fixing surface 03 and cannot flow continuously; however, if the bolt 01 to be detected is not connected with the fixing surface 03 in a fastening manner, the gas in the airflow channel leaks from the space between the bolt 01 to be detected and the fixing surface 03 of the bolt 01 to be detected, and at the moment, if soapy water is coated between the bolt 01 to be detected and the fixing surface 03 of the bolt 01 to be detected, the leaked gas blows towards the soapy water, so that bubbles are generated between the bolt 01 to be detected and the fixing surface 03 of the bolt 01 to be detected, and therefore it is visually judged that the bolt 01 to be detected is not connected with the fixing surface 03 in a fastening manner.
Compare in prior art and adopt rubber tube overlap joint 02 to accept the stationary plane 03 of detecting bolt 01, the utility model provides a bolt seal detection device closely with the connection of waiting to detect bolt 01, has avoided shaking because of rubber tube 02 among the operation process and has disturbed the testing result, and then has improved the precision that detects.
The bolt sealing detection device provided by the present invention will be further described with reference to the accompanying drawings and embodiments.
On the basis of the above embodiment, the detector body 1 is provided with at least one groove 3 penetrating in the axial direction at the wall surface of the inner cavity provided with the internal thread 2. Due to the fact that the groove 3 is formed, when the internal thread 2 is screwed with the screw rod, an airflow channel is formed between the inner cavity wall surface of the detector body 1 and the screw rod, and airflow in the detector body 1 flows to the fixing surface 03 of the bolt 01 to be detected through the airflow channel.
The groove 3 penetrates in the axial direction of the inner cavity wall surface of the detector body 1, and the groove 3 is not limited to a long-strip shape and a longitudinal direction parallel to the axial direction of the inner cavity wall surface, and includes a curve or a broken line shape formed by connecting multiple sections in sequence from end to end.
In order to further improve the detection accuracy of the bolt seal detection device, the detector body 1 is provided with a sealing portion 5 having a shape matching the end surface of the detector body 1 at one end surface close to the female screw 2.
In a specific bolt seal detection device, the seal portion 5 is provided as an annular rubber ring. The outer diameter of the rubber ring is not larger than the outer diameter of the end face, and the inner diameter of the rubber ring is not smaller than the inner diameter of the end face.
In the above embodiment, when the detector body 1 is screwed to the screw of the bolt 01 to be detected, the rubber ring is pressed between the end surface of the detector body 1 and the fixing surface 03, and the screwing of the detector body 1 and the screw of the bolt 01 to be detected is increasingly tight, so that the interference between the two sides of the rubber ring and the end surface of the detector body 1 and the fixing surface 03 is increased, and accordingly, the sealing degree between the rubber ring and the detector body 1 and the fixing surface 03 is also increased.
For convenient operation, the other end of the detector body 1 is provided with a gas pipe joint 4 for hermetically connecting a gas supply device. Obviously, the air pipe joint 4 is communicated with the air flow channel, and air can be manually blown into the air pipe joint 4 or can be supplied into the air pipe joint by a machine.
The utility model discloses the trachea joint 4 that adopts is connected with air feeder and valve. The valve is arranged between the air pipe joint 4 and the air supply device and used for controlling the on-off of the air pipe joint 4. The valve can be specifically set as a ball valve, which is convenient for adjusting the flow of air introduced into the air pipe joint 4 by the air supply device.
Besides the air supply device and the valve, the air pipe joint 4 can be connected with an air bag, and air is introduced into the air pipe joint 4 by extruding the air bag. The connection of the air bag and the air pipe joint 4 is simple, and the control is more flexible.
The utility model provides an arbitrary bolt seal detection device's recess 3 sets up to many, and is exemplary, and whole recess 3 evenly surrounds in the inner chamber wall, that is to say that two adjacent recess 3's interval equals.
In order to avoid the screw-in depth of the screw rod of the detector body 1 and the bolt 01 to be detected from affecting the unobstructed degree of the air flow channel, the depth of any groove 3 is greater than the difference between the major diameter of the screw thread and the minor diameter of the screw thread, in other words, the inner diameter of the groove 3 is greater than the height of a single thread, and no matter what angle the inner thread 2 and the outer thread of the screw rod are screwed in, the shape and the size of the groove 3 are always greater than the shape and the size of the thread at the groove 3.
In order to conveniently screw the detector body 1, a hexagonal structure can be further arranged on the periphery of the detector body 1, and the hexagonal structure can be clamped by tools such as a wrench, so that the detector body 1 can be screwed by screwing the hexagonal structure.
Obviously, this utility model provides a bolt seal detection device not only can be used for detecting the bolt, can also be used for detecting other fasteners that have the screw rod, for example screw, stud etc..
It is right above the utility model provides a bolt seal detection device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. A bolt seal detection device, characterized by comprising a detector body (1) having a tubular structure; one end of the detector body (1) is provided with an internal thread (2) which is screwed with a screw of a bolt (01) to be detected, and the detector body (1) is provided with an airflow channel which extends along the axial direction and penetrates into the internal thread (2).
2. The bolt seal detection device according to claim 1, characterized in that the inner cavity wall surface of the detector body (1) provided with the internal thread (2) is provided with at least one groove (3) which penetrates in the axial direction; the groove (3) forms the airflow channel between the screwed internal thread (2) and the screw.
3. The bolt seal detection device according to claim 1, characterized in that the end face of the detector body (1) near the end of the internal thread (2) is provided with a sealing part (5) matching the shape of the end face.
4. The bolt seal detection device according to claim 3, characterized in that the sealing portion (5) is embodied as an annular rubber ring; the outer diameter of the rubber ring is not larger than the outer diameter of the end face, and the inner diameter of the rubber ring is not smaller than the inner diameter of the end face.
5. The bolt seal detection device according to claim 1, characterized in that the detector body (1) is provided with a gas pipe connector (4) at one end away from the internal thread (2) for connecting a gas-tight seal with a gas supply device.
6. The bolt seal detection device according to claim 5, wherein the air pipe joint (4) is connected with an air supply device and a valve; the valve is arranged between the air pipe connector (4) and the air supply device.
7. Bolt seal detection device according to claim 5, characterized in that an air bag is connected to the air pipe connection (4) to supply air to the air pipe connection (4) when pressed.
8. The bolt-seal detecting device according to claim 2, wherein the groove (3) is provided in plural; all the grooves (3) uniformly surround the inner cavity wall surface of the detector body (1).
9. The bolt seal detection device according to claim 8, wherein the depth of any one of the grooves (3) is larger than the difference between the major diameter and the minor diameter of the thread of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022045815.5U CN213209373U (en) | 2020-09-17 | 2020-09-17 | Bolt seal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022045815.5U CN213209373U (en) | 2020-09-17 | 2020-09-17 | Bolt seal detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213209373U true CN213209373U (en) | 2021-05-14 |
Family
ID=75821427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022045815.5U Expired - Fee Related CN213209373U (en) | 2020-09-17 | 2020-09-17 | Bolt seal detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213209373U (en) |
-
2020
- 2020-09-17 CN CN202022045815.5U patent/CN213209373U/en not_active Expired - Fee Related
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Legal Events
| 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: 20210514 |