CN208919040U - A kind of bilayer anti-avulsion fastening assembly - Google Patents
A kind of bilayer anti-avulsion fastening assembly Download PDFInfo
- Publication number
- CN208919040U CN208919040U CN201821391256.XU CN201821391256U CN208919040U CN 208919040 U CN208919040 U CN 208919040U CN 201821391256 U CN201821391256 U CN 201821391256U CN 208919040 U CN208919040 U CN 208919040U
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- CN
- China
- Prior art keywords
- expansion
- slot
- avulsion
- tightening latch
- expansion sleeve
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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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Abstract
The utility model discloses a kind of double-deck anti-avulsion fastening assemblies, the accommodating chamber extended in the middle part of from the first end of the first bolt to the first tightening latch is equipped in outer body, the accommodating chamber is equipped with screw hole and through slot, expansion sleeve is located in the accommodating chamber and axially arranges along outer body, it is equipped in expansion sleeve and runs through cavity, expansion sleeve side wall is equipped with the expansion structure stretched out in the through slot, second tightening latch of interior body is threadedly engaged through cavity with the screw hole far from the first end of the second bolt across described, keeps the expansion structure protruding from the through slot.Pass through the double-deck anti-avulsion fastening assembly of above-mentioned optimization design, pass through outer double-layer structure in being arranged, after outer body installation, expansion sleeve is passed through by interior body to be mounted in outer body, so that the expansion structure of expansion sleeve is stretched out from through slot, it realizes and secondary fastening is carried out to the mounting groove cooperated with outer body, be detached from after preventing installation.
Description
Technical field
The utility model relates to fastening parts of automobiles technical field more particularly to a kind of double-deck anti-avulsion fastening assemblies.
Background technique
Fastener is to be fastenedly connected with and apply extremely wide a kind of machine components.Fastener, it is extensive using industry,
Including the energy, electronics, electric appliance, machinery, chemical industry, metallurgy, mold, hydraulic etc. industry, in various machinery, equipment, vehicle, ship
Above oceangoing ship, railway, bridge, building, structure, tool, instrument, chemical industry, instrument and articles etc., it can be seen that miscellaneous tight
Firmware is most widely used mechanical basic part.Current fastening parts of automobiles is since use occasion is different, and the condition used is not
Equally, there is different requirements to the shape of fastener and structure.When due to automobile starting, each component continuous vibration is tight to installing
The installation reliability of firmware is more demanding.
Utility model content
To solve technical problem present in background technique, the utility model proposes a kind of double-deck anti-avulsion fastening assemblies.
The utility model proposes a kind of double-deck anti-avulsion fastening assembly, comprising: outer body, expansion sleeve, interior body；
Outer body includes the first tightening latch and the first bolt head positioned at first tightening latch one end, is equipped in outer body from the first bolt head
To the accommodating chamber of extension in the middle part of the first tightening latch, the accommodating chamber bottom is equipped with through slot equipped with screw hole, the accommodating chamber side wall for one end；
Expansion sleeve is located in the accommodating chamber and axially arranges along outer body, is equipped in expansion sleeve and runs through cavity, expansion sleeve
Side wall is equipped with the expansion structure stretched out in the through slot；
Interior body includes the second tightening latch and the second bolt head positioned at second tightening latch one end, and the second tightening latch is first far from the second bolt
End is threadedly engaged through cavity with the screw hole across described, keeps the expansion structure protruding from the through slot.
Preferably, the accommodating chamber side wall be equipped with circumferentially distributed multiple through slots, expansion sleeve include body and be located at set
Multiple expansion pieces of the body far from the first end of the first bolt, each expansion piece protrude into a through slot, and two neighboring expansion piece interval is set
It sets.
Preferably, the second bolt head is against the body far from expansion piece one end.
Preferably, body inner wall is equipped with internal screw thread, and the second tightening latch is threadedly engaged with body.
Preferably, the second bolt head is located in the first bolt head.
In the utility model, the double-deck anti-avulsion fastening assembly proposed is equipped in outer body from the first end of the first bolt to the
The accommodating chamber extended in the middle part of one tightening latch, the accommodating chamber are equipped with screw hole and through slot, and expansion sleeve is located in the accommodating chamber and along outer
Body is axially arranged, is equipped in expansion sleeve and is run through cavity, and expansion sleeve side wall is equipped with the expansion structure stretched out in the through slot, interior bolt
Second tightening latch of body is threadedly engaged through cavity with the screw hole far from the first end of the second bolt across described, makes the expansion structure
It is protruding from the through slot.By the double-deck anti-avulsion fastening assembly of above-mentioned optimization design, by outer double-layer structure in being arranged, outside
After body installation, expansion sleeve is passed through by interior body and is mounted in outer body, so that the expansion structure of expansion sleeve is stretched out from through slot,
It realizes and secondary fastening is carried out to the mounting groove cooperated with outer body, be detached from after preventing installation.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of double-deck anti-avulsion fastening assembly structural schematic diagram.
Specific embodiment
As shown in FIG. 1, FIG. 1 is the utility model proposes a kind of double-deck anti-avulsion fastening assembly structural schematic diagram.
Referring to Fig.1, the utility model proposes a kind of double-deck anti-avulsion fastening assembly, comprising: outer body, expansion sleeve 3, interior bolt
Body；
Outer body includes the first tightening latch 11 and the first bolt head 12 positioned at 11 one end of the first tightening latch, is equipped in outer body from the
One bolt head, 12 one end is equipped with screw hole, the accommodating chamber side to the accommodating chamber extended in the middle part of the first tightening latch 11, the accommodating chamber bottom
Wall is equipped with through slot；
Expansion sleeve 3 is located in the accommodating chamber and axially arranges along outer body, is equipped in expansion sleeve 3 and runs through cavity, expansion
It covers 3 side walls and is equipped with the expansion structure stretched out in the through slot；
Interior body includes the second tightening latch 21 and the second bolt head 22 positioned at 21 one end of the second tightening latch, and the second tightening latch 21 is far from
Two bolt heads, 22 one end pass through it is described be threadedly engaged through cavity with the screw hole, make the expansion structure from the through slot to overhanging
Out.
In the present embodiment, the double-deck anti-avulsion fastening assembly proposed is equipped in outer body from the first end of the first bolt to the
The accommodating chamber extended in the middle part of one tightening latch, the accommodating chamber are equipped with screw hole and through slot, and expansion sleeve is located in the accommodating chamber and along outer
Body is axially arranged, is equipped in expansion sleeve and is run through cavity, and expansion sleeve side wall is equipped with the expansion structure stretched out in the through slot, interior bolt
Second tightening latch of body is threadedly engaged through cavity with the screw hole far from the first end of the second bolt across described, makes the expansion structure
It is protruding from the through slot.By the double-deck anti-avulsion fastening assembly of above-mentioned optimization design, by outer double-layer structure in being arranged, outside
After body installation, expansion sleeve is passed through by interior body and is mounted in outer body, so that the expansion structure of expansion sleeve is stretched out from through slot,
It realizes and secondary fastening is carried out to the mounting groove cooperated with outer body, be detached from after preventing installation.
In the specific embodiment of expansion sleeve, the accommodating chamber side wall is equipped with circumferentially distributed multiple through slots, expansion
Set 3 includes body 31 and multiple expansion pieces 32 positioned at body 31 far from 12 one end of the first bolt head, and each expansion piece 32 protrudes into one
In a through slot, the setting of the two neighboring interval of expansion piece 32；It is swollen outward from multiple directions by the way that multiple expansion pieces are arranged on body
Swollen support, the reliability after being further ensured that installation.
In further specific set-up mode, the second bolt head 22, far from 32 one end of expansion piece, passes through against the body 31
Second bolt head positions expansion sleeve, improves installation reliability.
In other specific embodiments, 31 inner wall of body is equipped with internal screw thread, and the second tightening latch 21 is threadedly engaged with body 31.
In order to guarantee the globality of inside and outside body mounted configuration, the second bolt head 22 is located in the first bolt head 12.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of bilayer anti-avulsion fastening assembly characterized by comprising outer body, expansion sleeve (3), interior body；
Outer body includes the first tightening latch (11) and the first bolt head (12) for being located at the first tightening latch (11) one end, be equipped in outer body from
To the accommodating chamber of extension in the middle part of the first tightening latch (11), the accommodating chamber bottom is equipped with screw hole, the appearance for first bolt head (12) one end
Chamber side wall of receiving is equipped with through slot；
Expansion sleeve (3) is located in the accommodating chamber and axially arranges along outer body, is equipped in expansion sleeve (3) and runs through cavity, expansion
It covers (3) side wall and is equipped with the expansion structure stretched out in the through slot；
Interior body includes the second tightening latch (21) and the second bolt head (22) for being located at the second tightening latch (21) one end, and the second tightening latch (21) is remote
It is threadedly engaged through cavity with the screw hole from second bolt head (22) one end across described, makes the expansion structure from the through slot
It is protruding.
2. bilayer anti-avulsion fastening assembly according to claim 1, which is characterized in that the accommodating chamber side wall is equipped with circumferentially
Multiple through slots of distribution, expansion sleeve (3) include body (31) and are located at body (31) far from the multiple of first bolt head (12) one end
Expansion piece (32), each expansion piece (32) are protruded into a through slot, the setting of two neighboring expansion piece (32) interval.
3. bilayer anti-avulsion fastening assembly according to claim 2, which is characterized in that the second bolt head (22) is against the body
(31) far from expansion piece (32) one end.
4. bilayer anti-avulsion fastening assembly according to claim 2, which is characterized in that body (31) inner wall is equipped with internal screw thread,
Second tightening latch (21) is threadedly engaged with body (31).
5. bilayer anti-avulsion fastening assembly according to claim 1, which is characterized in that the second bolt head (22) is located at the first bolt head
(12) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391256.XU CN208919040U (en) | 2018-08-27 | 2018-08-27 | A kind of bilayer anti-avulsion fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391256.XU CN208919040U (en) | 2018-08-27 | 2018-08-27 | A kind of bilayer anti-avulsion fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919040U true CN208919040U (en) | 2019-05-31 |
Family
ID=66704325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821391256.XU Expired - Fee Related CN208919040U (en) | 2018-08-27 | 2018-08-27 | A kind of bilayer anti-avulsion fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825634A (en) * | 2018-08-27 | 2018-11-16 | 安徽西马新能源技术有限公司 | A kind of bilayer anti-avulsion fastening assembly |
-
2018
- 2018-08-27 CN CN201821391256.XU patent/CN208919040U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825634A (en) * | 2018-08-27 | 2018-11-16 | 安徽西马新能源技术有限公司 | A kind of bilayer anti-avulsion fastening assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20200827 |