CN210343995U - Extrusion self-sealing bolt - Google Patents
Extrusion self-sealing bolt Download PDFInfo
- Publication number
- CN210343995U CN210343995U CN201921330164.5U CN201921330164U CN210343995U CN 210343995 U CN210343995 U CN 210343995U CN 201921330164 U CN201921330164 U CN 201921330164U CN 210343995 U CN210343995 U CN 210343995U
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- China
- Prior art keywords
- bolt
- stud
- blind hole
- hole
- liquid bag
- Prior art date
- 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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Abstract
The utility model discloses a self sealss bolt is extruded, it includes: the bolt head is concentrically arranged at the top end of the stud, a blind hole is formed in the bottom of the stud in a concave mode, the ejector rod extends inwards from the bottom of the blind hole, a liquid bag located above the ejector rod is arranged in the blind hole, sealant is arranged in the liquid bag, a glue injection hole extending into the blind hole in the radial direction is formed in the outer circle of the stud, and a section of structure weakening groove is formed in the bottom of the ejector rod in a concave mode. Extrusion self sealss bolt, when the screw hole is the blind hole, the screw bolt twists the in-process of screw hole, the ejector pin bottom is spacing and shifts up, realizes the extrusion of liquid bag, finally makes the liquid bag break, sealed glue is through annotating the gluey hole and in being crowded into the gap between screw hole and the screw bolt, realizes the sealed of junction after the solidification, has reduced the pine of screw bolt moreover and has taken off the problem, connects more stably.
Description
Technical Field
The utility model relates to a bolt technical field especially relates to a self sealss bolt of extrusion.
Background
Bolts are a common type of fastener, and need to be engaged with nuts or threaded holes for fastening two or more parts.
The cooperation of bolt and screw hole can realize the sealed to the screw hole to a certain extent, but because the machining precision problem of bolt or screw hole, sealed effect is limited, can not satisfy the operation requirement of partial part, needs the improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self sealss bolt is extruded realizes that the bolt is sealed with being connected of corresponding screw hole, promotes connection stability and leakproofness.
To achieve the purpose, the utility model adopts the following technical proposal:
a compression self-sealing bolt comprising: the bolt head is concentrically arranged at the top end of the stud, a blind hole is formed in the bottom of the stud in a concave mode, the ejector rod extends inwards from the bottom of the blind hole, a liquid bag located above the ejector rod is arranged in the blind hole, sealant is arranged in the liquid bag, a glue injection hole extending into the blind hole in the radial direction is formed in the outer circle of the stud, and a section of structure weakening groove is formed in the bottom of the ejector rod in a concave mode.
The stud and the bolt head are of an integrated steel structure.
Wherein, the liquid bag is in a spherical hollow soft plastic film structure.
The bolt head is an outer hexagonal bolt head or an inner hexagonal bolt head.
Wherein, the structure weakening groove is a cross groove or a cross groove.
And the glue injection holes are distributed on the outer circle of the stud in an annular array.
The utility model has the advantages that: the utility model provides an extrusion self sealss bolt, when the screw hole is the blind hole, the screw bolt twists the in-process of screw hole, and the ejector pin bottom is spacing and shifts up, realizes the extrusion of liquid bag, finally makes the liquid bag break, and sealed glue is through annotating the gluey hole and being crowded into the gap between screw hole and the screw bolt, realizes the sealed of junction after the solidification, has reduced the pine of screw bolt moreover and has taken off the problem, connects more stably.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1.
A compression self-sealing bolt as shown in fig. 1, comprising: the bolt comprises an ejector rod 5, a bolt head 1 and a stud 2, wherein the bolt head 1 is concentrically arranged at the top end of the stud 2, and the stud 2 and the bolt head 1 are of an integrated steel structure, so that the structural firmness is ensured.
The bolt head 1 is an outer hexagonal bolt head or an inner hexagonal bolt head, and the inner hexagonal bolt head shown in fig. 1 can be rotated by an inner hexagonal wrench, so that the operation is convenient.
2 bottoms indent of double-screw bolt is provided with blind hole 4, 4 bottoms of blind hole are inwards extended to ejector pin 5, be provided with the liquid bag 6 that is located 5 tops of ejector pin in the blind hole 4, be provided with sealed glue in the liquid bag 6, liquid bag 6 is spherical hollow soft plastic film structure, and the wall thickness is 0.06mm, can save partial sealed glue, and structural strength is low moreover, breaks easily during the extrusion and makes sealed glue spill over fast, promotes the convenience of operation.
And a glue injection hole 3 radially extending into the blind hole is formed in the excircle of the stud 2. When the threaded hole which is connected with the stud 2 in a matched mode is also a blind hole, in the process that the stud is screwed into the threaded hole, the bottom of the ejector rod 5 is limited and moves upwards to extrude the liquid bag, finally the liquid bag is broken, the sealant is extruded into a gap between the threaded hole and the stud 2 through the glue injection hole 3, and the joint is sealed after curing.
The glue injection holes 3 are distributed on the outer circle of the stud 2 in an annular array mode, so that the sealant is distributed in the threaded holes more uniformly, the problem of loosening of the stud 2 is reduced, and connection is more stable.
Certainly, the stud 2 can be installed in cooperation with the nut, after the installation, the ejector rod 5 is knocked, so that the liquid bag 6 is extruded and broken, the extruded sealant is extruded into a gap between the threaded hole and the stud 2 through the sealant injection hole 3, and the joint is sealed after the sealant is cured.
The structure weakening groove 7 is a cross groove or a cross groove, so that a multi-petal structure is formed at the bottom of the ejector rod 5, the structural strength is weakened, and the resistance of the stud 2 rotating in the threaded hole is reduced. The top rod 5 can be a plastic rod, so that the liquid bag 6 can be broken, and the strength is reduced as much as possible.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A squeeze self-sealing bolt comprising: the bolt head is concentrically arranged at the top end of the stud, a blind hole is formed in the bottom of the stud in a concave mode, the ejector rod extends inwards from the bottom of the blind hole, a liquid bag located above the ejector rod is arranged in the blind hole, sealant is arranged in the liquid bag, a glue injection hole extending into the blind hole in the radial direction is formed in the outer circle of the stud, and a section of structure weakening groove is formed in the bottom of the ejector rod in a concave mode.
2. The extruded self-sealing bolt of claim 1, wherein the stud and bolt head are of a unitary steel construction.
3. The extruded self-sealing bolt of claim 1, wherein said sac is of spherical hollow soft plastic film construction.
4. The extruded self-sealing bolt of claim 1, wherein the bolt head is a hex head or a hex head.
5. The extruded self-sealing bolt of claim 1, wherein the structural weakening groove is a cross groove or a cross groove.
6. The extruded self-sealing bolt of claim 1, wherein the annular array of glue injection holes is distributed on the stud excircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330164.5U CN210343995U (en) | 2019-08-16 | 2019-08-16 | Extrusion self-sealing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330164.5U CN210343995U (en) | 2019-08-16 | 2019-08-16 | Extrusion self-sealing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343995U true CN210343995U (en) | 2020-04-17 |
Family
ID=70175216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921330164.5U Expired - Fee Related CN210343995U (en) | 2019-08-16 | 2019-08-16 | Extrusion self-sealing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343995U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178167A (en) * | 2020-09-27 | 2021-01-05 | 重庆市璧山区爱华机械有限公司 | Speed reducer of cooling tower |
| CN112576600A (en) * | 2020-12-31 | 2021-03-30 | 马娜 | Automatic gummed check bolt |
| CN113389793A (en) * | 2021-06-28 | 2021-09-14 | 绍兴山耐高压紧固件有限公司 | Anti-loosening bolt |
| CN115750562A (en) * | 2022-10-19 | 2023-03-07 | 浙江利永达制冷机械有限公司 | Non-deformable compression screw and use method thereof |
-
2019
- 2019-08-16 CN CN201921330164.5U patent/CN210343995U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178167A (en) * | 2020-09-27 | 2021-01-05 | 重庆市璧山区爱华机械有限公司 | Speed reducer of cooling tower |
| CN112576600A (en) * | 2020-12-31 | 2021-03-30 | 马娜 | Automatic gummed check bolt |
| CN113389793A (en) * | 2021-06-28 | 2021-09-14 | 绍兴山耐高压紧固件有限公司 | Anti-loosening bolt |
| CN113389793B (en) * | 2021-06-28 | 2022-05-13 | 绍兴山耐高压紧固件有限公司 | Anti-loosening bolt |
| CN115750562A (en) * | 2022-10-19 | 2023-03-07 | 浙江利永达制冷机械有限公司 | Non-deformable compression screw and use method thereof |
| CN115750562B (en) * | 2022-10-19 | 2023-05-23 | 浙江利永达制冷机械有限公司 | Non-deformable compression screw and use method thereof |
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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: 20200417 Termination date: 20210816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |