CN206111772U - Simple and easy expansion bolts - Google Patents
Simple and easy expansion bolts Download PDFInfo
- Publication number
- CN206111772U CN206111772U CN201621060957.6U CN201621060957U CN206111772U CN 206111772 U CN206111772 U CN 206111772U CN 201621060957 U CN201621060957 U CN 201621060957U CN 206111772 U CN206111772 U CN 206111772U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- cover
- nut
- locking
- expansion
- 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.)
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Abstract
The utility model provides a simple and easy expansion bolts, including screw rod, nut, packing ring, bloated cover and locking cover, the shape of screw rod is the cylinder, the outside of screw rod is equipped with the screw thread, the top of screw rod is equipped with the nut, the packing ring is installed to the below of nut, inlay on the screw rod and be equipped with the cover that expands, the cover that expands is well empty cylindrical shape, the lower extreme that overlaps that expands is equipped with the taper surface, still be equipped with the locking cover on the screw rod, the locking cover cooperatees with the taper surface, the periphery of locking cover is equipped with a plurality of locking strip, the bottom of screw rod is equipped with the drive division, drive division drive locking cover removes, utilizes screw rod back drive locking cover, the cover drive locking strip radial expansion that expands, and the reverse locking wall of tip of locking strip, simple structure can avoid the not hard up easily of bolt, assurance bolted connection's steadiness.
Description
【Technical field】
The utility model is related to the technical field of Hardware fitting, particularly a kind of easy expansion bolt.
【Background technology】
At this stage, people can use expansion bolt when decorating house, installation water power, and setscrew is typically all
It is made up of two parts, an activity, a fixation, in the presence of external force, two part relative motions so that activity is solid
The local of fixed part deforms, and volume becomes big, becomes also bigger than the internal diameter in hole, so as to produce coupling mechanism force, what is used
During, body of wall internal drilling aperture is often big than bolt hole, and common expansion bolt adopts the side of single screwing type expansion fastening
Method, single fastening structure easily causes the unstable phenomenon of installation thing, easily comes off when using, therefore proposes a kind of simple
Expansion bolt.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, it is proposed that a kind of easy expansion bolt, profit
With screw rod reverse drive stop sleeve, wall, structure letter are inversely locked in expansion set driving retaining strip radial dilatation, the end of retaining strip
It is single, fixation.
For achieving the above object, the utility model proposes a kind of easy expansion bolt, including screw rod, nut, packing ring,
Expansion set and stop sleeve, the screw rod is shaped as cylinder, and screw thread is provided with the outside of the screw rod, and the top of the screw rod sets
There is nut, packing ring be installed below the nut, expansion set is embedded with the screw rod, the expansion set is hollow cylindrical,
The lower end of the expansion set is provided with taper surface, and stop sleeve is additionally provided with the screw rod, and the stop sleeve is engaged with taper surface, described
The periphery of stop sleeve is provided with several retaining strips, and the bottom of the screw rod is provided with drive division, and the drive division drives stop sleeve to move
It is dynamic.
Preferably, the cross sectional shape of the drive division is circle, the outer diameter length of the drive division is not more than expansion set
Outer diameter length.
Preferably, the stop sleeve also includes installation set, the installation set is shaped as annular, the installation set
Outer diameter length is not more than the outer diameter length of expansion set.
Preferably, the cross sectional shape of the retaining strip is arc, the retaining strip is circularly and evenly distributed, the stop
The inwall of bar is provided with inclined plane, and the inclined plane is engaged with taper surface.
The beneficial effects of the utility model：The utility model is matched somebody with somebody by screw rod, nut, packing ring, expansion set and stop sleeve etc.
Close, using screw rod reverse drive stop sleeve, expansion set drives retaining strip radial dilatation, the end of retaining strip inversely to lock wall, ties
Structure is simple, it is to avoid the loosening easily of bolt, it is ensured that bolted steadiness.
Feature of the present utility model and advantage will combine accompanying drawing and be described in detail by embodiment.
【Description of the drawings】
Fig. 1 is a kind of structural representation of easy expansion bolt of the utility model；
Fig. 2 is a kind of operating diagram of easy expansion bolt of the utility model；
Fig. 3 is a kind of structural representation of the stop sleeve of easy expansion bolt of the utility model；
Fig. 4 is a kind of structural representation of the expansion set of easy expansion bolt of the utility model.
In figure：1- screw rods, 2- nuts, 3- packing rings, 4- expansion sets, 5- stop sleeves, 11- drive divisions, 51- installation sets, 52- stop
Bar, 521- inclined planes.
【Specific embodiment】
Refering to a kind of easy expansion bolt of Fig. 1 to Fig. 4 the utility model, including screw rod 1, nut 2, packing ring 3, expansion set 4
With stop sleeve 5, the screw rod 1 is shaped as cylinder, and the outside of the screw rod 1 is provided with screw thread, the top of the screw rod 1 sets
The lower section for having nut 2, the nut 2 is provided with packing ring 3, and expansion set 4 is embedded with the screw rod 1, and the expansion set 4 is hollow circle
Tubular, the lower end of the expansion set 4 is provided with taper surface 41, and stop sleeve 5, the stop sleeve 5 and taper surface are additionally provided with the screw rod 1
41 are engaged, and the periphery of the stop sleeve 5 is provided with several retaining strips 52, and the bottom of the screw rod 1 is provided with drive division 11, described
Drive division 11 drives stop sleeve 5 to move.The cross sectional shape of the drive division 11 is circle, and the outer diameter length of the drive division 11 is not
More than the outer diameter length of expansion set 4.The stop sleeve 5 also includes installation set 51, and the installation set 51 is shaped as annular, described
The outer diameter length of installation set 51 is not more than the outer diameter length of expansion set 4.The cross sectional shape of the retaining strip 52 be arc, the stop
Bar 52 is circularly and evenly distributed, and the inwall of the retaining strip 52 is provided with inclined plane 521, the inclined plane 521 and the phase of taper surface 41
Coordinate.
Utility model works process：
Bolt in the course of the work, during installation, is put into connected workpiece by a kind of easy expansion bolt of the utility model
Hole in, rotate nut 2 with spanner, screw rod 1 and nut 2 produce relative motion, and screw rod 1 rises, and the reverse drive of drive division 11 is stopped
Dynamic set 5 is moved up, and the taper surface 41 of expansion set 4 drives the radial dilatation of retaining strip 52, the end of retaining strip 52 to be embedded in body of wall,
When bolt is subject to export-oriented active force, the end of retaining strip 52 has and be more partially embedded in body of wall, inversely locks wall
Wall, simple structure can avoid the loosening easily of bolt, it is ensured that bolted steadiness.
Above-described embodiment be to explanation of the present utility model, be not to restriction of the present utility model, it is any new to this practicality
Scheme after type simple transformation belongs to protection domain of the present utility model.
Claims (4)
1. a kind of easy expansion bolt, it is characterised in that：Including screw rod (1), nut (2), packing ring (3), expansion set (4) and stop
Set (5), the screw rod (1) is shaped as cylinder, and screw thread is provided with the outside of the screw rod (1), and the top of the screw rod (1) sets
There is nut (2), packing ring (3) is installed below the nut (2), on the screw rod (1) expansion set (4), the expansion set are embedded with
(4) it is hollow cylindrical, the lower end of the expansion set (4) is provided with taper surface (41), and on the screw rod (1) stop sleeve (5) is additionally provided with,
The stop sleeve (5) is engaged with taper surface (41), and the periphery of the stop sleeve (5) is provided with several retaining strips (52), described
The bottom of screw rod (1) is provided with drive division (11), and the drive division (11) drives stop sleeve (5) mobile.
2. a kind of easy expansion bolt as claimed in claim 1, it is characterised in that：The cross sectional shape of the drive division (11)
For circle, the outer diameter length of the drive division (11) is not more than the outer diameter length of expansion set (4).
3. a kind of easy expansion bolt as claimed in claim 1, it is characterised in that：The stop sleeve (5) also includes installing
Set (51), the installation set (51) is shaped as annular, and the outer diameter length of the installation set (51) is not more than the outer of expansion set (4)
Electrical path length.
4. a kind of easy expansion bolt as claimed in claim 1, it is characterised in that：The cross sectional shape of the retaining strip (52)
For arc, the retaining strip (52) is circularly and evenly distributed, and the inwall of the retaining strip (52) is provided with inclined plane (521), described
Inclined plane (521) is engaged with taper surface (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060957.6U CN206111772U (en) | 2016-09-19 | 2016-09-19 | Simple and easy expansion bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060957.6U CN206111772U (en) | 2016-09-19 | 2016-09-19 | Simple and easy expansion bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111772U true CN206111772U (en) | 2017-04-19 |
Family
ID=58520104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621060957.6U Active CN206111772U (en) | 2016-09-19 | 2016-09-19 | Simple and easy expansion bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271356A (en) * | 2020-03-16 | 2020-06-12 | 杨磊 | Reverse expansion bolt |
-
2016
- 2016-09-19 CN CN201621060957.6U patent/CN206111772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271356A (en) * | 2020-03-16 | 2020-06-12 | 杨磊 | Reverse expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314300 No.18, Jinping Road, Qinshan street, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Yichen hardware (Zhejiang) Co.,Ltd. Address before: 314300 No.18, Jinping Road, Qinshan street, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG YICHEN HARDWARE Corp. |