CN203412876U - Self-lock expansion bolt - Google Patents
Self-lock expansion bolt Download PDFInfo
- Publication number
- CN203412876U CN203412876U CN201320366806.3U CN201320366806U CN203412876U CN 203412876 U CN203412876 U CN 203412876U CN 201320366806 U CN201320366806 U CN 201320366806U CN 203412876 U CN203412876 U CN 203412876U
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- CN
- China
- Prior art keywords
- self
- expansion
- lock
- expansion bolt
- bolt
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of metal connectors, and particularly relates to a self-lock expansion bolt with a self-lock device; the self-lock expansion bolt comprises a sub pin, an expansion pipe and the self-lock device; one end of the expansion pipe is provided with a mortise block while the other end is tubular; an inner hexagonal screw rod and a fixing nut are arranged in the expansion pipe; the self-lock device is fixed at the tubular end of the expansion pipe; the fixing nut is arranged in the expansion pipe; the expansion bolt is fixed by the self-lock device. He self-lock expansion bolt is opposite to the common expansion bolt in the expansion mode, the common expansion bolt is screwed down by a nut to outwards pull a screw rod, and the attraction is influenced as the nut is exposed outside, the self-lock expansion bolt is spirally screwed without influencing the space in the self-lock device when the sub pin is inserted, and the end surface of the self-lock device is level with a fixed object, so the operation is convenient and the self-lock expansion bolt is attractive and practical.
Description
Technical field
The utility model belongs to metal connecting piece field, is specifically related to a kind of self-lock expansion bolt with self-locking device.
Background technique
EXPANSION ANCHOR BOLTS, be pipeline is propped up/hangs/bracket or equipment are fixing on the wall, a kind of special thread link used on floor, on post.EXPANSION ANCHOR BOLTS is comprised of countersunk screw, expand tube, plain washer, spring pad and hexagon nut.EXPANSION ANCHOR BOLTS has a wide range of applications in building and house ornamentation field, but can not be for architectural surface fixing, the nut that should be protrusion affects attractive in appearance, for outdoor, also has a poor problem of weatherability.
Model utility content
The purpose of this utility model is that a kind of easy for installation, both artistic and practical self-lock expansion bolt will be provided.
In order to solve the problems of the technologies described above, the technological scheme that the utility model is taked is as follows:
, it comprises sub-pin, expansion tube and self-locking device, and expansion tube one end is provided with Zhi piece, and the other end is tubulose, and expansion tube inside is provided with interior six side's screw rod and set screw nuts, and self-locking device is fixed on tubulose one end of expansion tube.
Above-mentioned self-lock expansion bolt, the sub-pin described in it is one end with the bolt of tapered head, the external diameter of conical head is than the diameter of bolt large 1/3rd.
Above-mentioned self-lock expansion bolt, the funnel shaped that the Zhi piece described in it is comprised of tapered expansion piece.
Above-mentioned self-lock expansion bolt, self-locking device described in it comprise load disk, can minute expense sheet and position-arresting disk, can all coil springs be set a minute expense sheet outer shroud, can be positioned in the middle of load disk and position-arresting disk by a minute expense sheet, position-arresting disk is connected with the tubulose end face of expansion tube.
Above-mentioned self-lock expansion bolt, the self-locking device described in it comprise load disk, can minute expense sheet and spring sheet, spring sheet one end be arranged on can minute expense sheet on, the other end is fixed on expansion tube inwall.
Above-mentioned self-lock expansion bolt, the divided expense sheet described in it is comprised of more than two or two pin sheets.
Above-mentioned self-lock expansion bolt, the interior hole dimension of the load disk described in it is greater than the conical head external diameter of son pin, and load disc thickness and tension pull out force match.
Above-mentioned self-lock expansion bolt, the interior hole dimension of the divided expense sheet described in it and son pin equal diameters.
Beneficial effect:
The self-lock expansion bolt that the utility model provides, comprise sub-pin, expansion tube and self-locking device, expansion tube one end is provided with Zhi piece, the other end is tubulose, expansion tube inside is provided with interior six side's screw rod and set screw nuts, self-locking device is fixed on tubulose one end of expansion tube, and set screw nut is arranged in expansion tube, by self-locking device fixed expansion bolt.Described self-lock expansion bolt is contrary with the expansion fashion of common EXPANSION ANCHOR BOLTS, plain bolt is to tighten with nut, screw rod is pulled out, nut affects attractive in appearance outside, self-lock expansion bolt is screw rod precession, so that the interior space of self-locking device while not affecting intron pin, the end face of self-locking device is concordant with fixture, easy to operate, and both artistic and practical.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with accompanying drawing, summary of the invention is done to detailed explanation.
The utility model comprises son pin 1, expansion tube 8 and self-locking device, expansion tube 8 one end are provided with Zhi piece 7, the other end is tubulose, expansion tube 8 inside are provided with interior six side's screw rods 6 and set screw nut 5, self-locking device is fixed on tubulose one end of expansion tube 8, son pin 1 is that one end is with the bolt of tapered head, the external diameter of conical head is than the diameter of bolt large 1/3rd, expansion tube 8 is from set screw nut below 5, prolong pipe range direction and be divided into several deciles, establish an expanding block for every part, all expanding blocks form a funnel shape Zhi piece 7, self-locking device comprises load disk 2, can divide expense sheet 3 and position-arresting disk 4, the interior hole dimension of load disk 2 is greater than the conical head external diameter of son pin 1, load disk 2 thickness and tension pull out force match, can by three pin sheets, be formed by minute expense sheet 3, in it, hole dimension is consistent with son pin 1 diameter, outer shroud arranges all coil springs 9, can be positioned in the middle of load disk 2 and position-arresting disk 4 by a minute expense sheet 3, position-arresting disk 4 is connected with the tubulose end face of expansion tube 8, prevent from sliding minute expense sheet 3 front and back in expansion tube.
As further improvement, described self-locking device comprise load disk, can minute expense sheet and spring sheet, the interior hole dimension of load disk is greater than the conical head external diameter of son pin, load disc thickness and tension pull out force match, can minute expense sheet three pin sheets, consist of, in it, to sell diameter consistent for hole dimension and son, spring sheet one end be arranged on can minute expense sheet on, the other end is fixed on expansion tube inwall, plays simultaneously several minutes expense sheets are condensed together and the effect spacing to pin sheet.The conehead plug-in type of group pin, pin sheet outwards separates, and after major part streaks, pin sheet is under spring action, and inward collapsible is lived sub-lock.
This self-lock expansion bolt is divided into two parts, and a part is son pin, can be fixed on the inner side of venner, and a part can be placed on fixture for the EXPANSION ANCHOR BOLTS with self-locking device.During use, under the turn of interior six side's screw rods, conehead can insert in funnel shape, it is expanded to surrounding, thereby realize the effect that expansion tube is expanded, it is fixed, this expansion fashion is contrary with the expansion fashion of common EXPANSION ANCHOR BOLTS, plain bolt is to tighten with nut, screw rod is pulled out, and our expansion fashion is screw rod precession, so that the interior space of self-locking device while not affecting intron pin.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a self-lock expansion bolt, is characterized in that: comprise sub-pin, expansion tube and self-locking device; Described expansion tube one end is provided with Zhi piece, and its other end is tubulose; Described expansion tube inside is provided with interior six side's screw rod and set screw nuts, and described self-locking device is fixed on tubulose one end of expansion tube.
2. self-lock expansion bolt according to claim 1, is characterized in that: described sub-pin be one end with the bolt of tapered head, the external diameter of described conical head is than the diameter of bolt large 1/3rd.
3. self-lock expansion bolt according to claim 1, is characterized in that: the funnel shaped that described Zhi piece is comprised of tapered expansion piece.
4. self-lock expansion bolt according to claim 1, it is characterized in that: described self-locking device comprise load disk, can minute expense sheet and position-arresting disk, within described minute, expense sheet outer shroud arranges all coil springs, within described minute, expense sheet is positioned in the middle of load disk and position-arresting disk, and described position-arresting disk is connected with the tubulose end face of expansion tube.
5. self-lock expansion bolt according to claim 1, is characterized in that: described self-locking device comprise load disk, can minute expense sheet and spring sheet, described spring sheet one end be arranged on can minute expense sheet on, its other end is fixed on expansion tube inwall.
6. according to the self-lock expansion bolt described in claim 4 or 5, it is characterized in that: described divided expense sheet is comprised of more than two or two pin sheets.
7. according to the self-lock expansion bolt described in claim 4 or 5, it is characterized in that: the interior hole dimension of described load disk is greater than the conical head external diameter of son pin, and described load disc thickness and tension pull out force match.
8. according to the self-lock expansion bolt described in claim 4 or 5, it is characterized in that: the interior hole dimension of described divided expense sheet and son pin equal diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366806.3U CN203412876U (en) | 2013-06-25 | 2013-06-25 | Self-lock expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366806.3U CN203412876U (en) | 2013-06-25 | 2013-06-25 | Self-lock expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412876U true CN203412876U (en) | 2014-01-29 |
Family
ID=49975765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320366806.3U Expired - Fee Related CN203412876U (en) | 2013-06-25 | 2013-06-25 | Self-lock expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334995A (en) * | 2013-06-25 | 2013-10-02 | 昆山生态屋建筑技术有限公司 | Self-locking expansion bolt |
-
2013
- 2013-06-25 CN CN201320366806.3U patent/CN203412876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334995A (en) * | 2013-06-25 | 2013-10-02 | 昆山生态屋建筑技术有限公司 | Self-locking expansion bolt |
| CN103334995B (en) * | 2013-06-25 | 2016-09-07 | 昆山生态屋建筑技术有限公司 | A kind of self-lock expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140129 Termination date: 20170625 |