CN206111773U - Prevent pivoted expansion bolts - Google Patents
Prevent pivoted expansion bolts Download PDFInfo
- Publication number
- CN206111773U CN206111773U CN201621061637.2U CN201621061637U CN206111773U CN 206111773 U CN206111773 U CN 206111773U CN 201621061637 U CN201621061637 U CN 201621061637U CN 206111773 U CN206111773 U CN 206111773U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- groove
- spacer
- cutting ferrule
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a prevent pivoted expansion bolts, including screw rod, nut, spring washer, packing ring, actuating sleeve, cutting ferrule and the cover that expands, the shape of screw rod is the cylinder, the upper end of screw rod is equipped with the screw thread, the nut is installed on the top of screw rod, spring washer is installed to the below of nut, spring washer's below is equipped with the packing ring, the below of screw rod is equipped with the tail bone, the cover that expands is installed to the top of tail bone, the logical groove of a plurality of has been seted up to the lower extreme that overlaps that expands, a plurality of draw -in groove has been seted up to the upper end of bloated cover, be equipped with the cutting ferrule in the draw -in groove, be equipped with a plurality of spacer on the cutting ferrule, the spacer cooperatees with the draw -in groove, the embedded actuating sleeve that is equipped with of cutting ferrule, be equipped with a plurality of fin on the actuating sleeve, fin drive spacer warp, and spacer radial expansion inlays the dress and in the draw -in groove of cover that expands, can avoid bloated cover along with the screw rod rotates, causes the afterbody of the cover that expands to expand, causes the insecure problem of bolted connection.
Description
【Technical field】
This utility model is related to the technical field of Hardware fitting, particularly a kind of expansion bolt of anti-rotation.
【Background technology】
People can use expansion bolt when decorating house, installation water power, and setscrew is typically all by two
Part is constituted, an activity, a fixation, in the presence of external force, two part relative motions so that activity or fixed portion
The local of part deforms, and volume becomes big, becomes also bigger than the internal diameter in hole, and so as to produce coupling mechanism force, expansion bolt is being used
During Jing often there is the excessive situation more than tube expansion external diameter of prefabricated hole inner arm diameter, and the tube expansion because of expansion bolt with it is pre-
Without big frictional connection, again nothing mutually blocks connection to drilling hole inner arm between tube expansion and bolt, so as to cause expansion bolt fastening
Nut cannot be screwed into spanner rotation in journey, expansion bolt is expanded, occur in that indivedual expansion bolts are unstable
Problem, easily causes the unstable phenomenon of installation thing, easily comes off when using, therefore proposes a kind of expanding screw of anti-rotation
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 expansion bolt of anti-rotation,
Using the cooperation of actuating sleeve and cutting ferrule, the spacer radial dilatation of cutting ferrule is made, while locking wall, spacer is inlaid in expansion set
Draw-in groove in, can avoid expansion set with screw rod rotate, causing the afterbody of expansion set cannot bulge, and cause bolt connection unstable
Problem.
For achieving the above object, the utility model proposes a kind of expansion bolt of anti-rotation, including screw rod, nut, bullet
Spring packing ring, packing ring, actuating sleeve, cutting ferrule and expansion set, the screw rod is shaped as cylinder, and the upper end of the screw rod is provided with screw thread,
The top of the screw rod is provided with nut, and spring washer is provided with below the nut, is provided with below the spring washer
Packing ring, is provided with caudal vertebra below the screw rod, be provided with expansion set above the caudal vertebra, and the lower end of the expansion set offers some
Individual groove, the upper end of the expansion set offers several draw-in grooves, and cutting ferrule is provided with the draw-in groove, and the cutting ferrule is provided with several
Spacer, the spacer is engaged with draw-in groove, and actuating sleeve is embedded with the cutting ferrule, and the actuating sleeve is provided with several wings
Piece, the fin drives spacer deformation.
Preferably, the actuating sleeve also includes clamp and installation set, the external diameter of the clamp is equal to the external diameter of expansion set, institute
State and be provided with below clamp installation set, the internal diameter of the installation set is more than the external diameter of screw rod.
Preferably, the number of the fin is 4, the vertical sectional shape of the fin is approximately right angled triangle.
Preferably, the cutting ferrule also includes chute, the chute is located at the inwall of spacer, the chute and fin
Shape of cross section is identical, and the cross sectional shape of the chute is rectangle, and the chute is engaged with fin.
Preferably, the width of the spacer is less than the width of draw-in groove, the outer wall of the spacer is provided with several
It is raised.
Preferably, the groove is distributed in uniform circular, the number of the groove is 4.
The beneficial effects of the utility model：This utility model passes through screw rod, nut, spring washer, packing ring, actuating sleeve, card
The cooperation of set and expansion set etc., using the cooperation of actuating sleeve and cutting ferrule, makes the spacer radial dilatation of cutting ferrule, locks the same of wall
When, spacer is inlaid in the draw-in groove of expansion set, and expansion set can be avoided to rotate with screw rod, and causing the afterbody of expansion set cannot bulge,
Solve the unstable problem of bolt connection.
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 blast schematic diagram of the expansion bolt of anti-rotation of this utility model；
Fig. 2 is a kind of operating diagram of the expansion bolt of anti-rotation of this utility model；
Fig. 3 is a kind of structural representation of the actuating sleeve of the expansion bolt of anti-rotation of this utility model；
Fig. 4 is a kind of structural representation of the cutting ferrule of the expansion bolt of anti-rotation of this utility model.
In figure：1- screw rods, 2- nuts, 3- spring washers, 4- packing rings, 5- actuating sleeves, 6- cutting ferrules, 7- expansion sets, 11- caudal vertebras,
51- clamps, 52- installation sets, 521- fins, 61- spacers, 62- chutes, 611- projections, 71- grooves, 72- draw-in grooves.
【Specific embodiment】
Refering to a kind of expansion bolt of anti-rotation of Fig. 1 to Fig. 4 this utility model, including screw rod 1, nut 2, spring washer 3,
Packing ring 4, actuating sleeve 5, cutting ferrule 6 and expansion set 7, the screw rod 1 is shaped as cylinder, and the upper end of the screw rod 1 is provided with screw thread, institute
The top for stating screw rod 1 is provided with nut 2, and the lower section of the nut 2 is provided with spring washer 3, and the lower section of the spring washer 3 sets
The lower section for having packing ring 4, the screw rod 1 is provided with caudal vertebra 11, and the top of the caudal vertebra 11 is provided with expansion set 7, the lower end of the expansion set 7
Several grooves 71 are offered, the upper end of the expansion set 4 offers in several draw-in grooves 72, the draw-in groove 72 and is provided with cutting ferrule 6, institute
State cutting ferrule 6 and be provided with several spacers 61, the spacer 61 is engaged with draw-in groove 72, in the cutting ferrule 6 driving is embedded with
Set 5, the actuating sleeve 5 is provided with several fins 521, and the fin 521 drives spacer 61 to deform.The actuating sleeve 5 is also
Including clamp 51 and installation set 52, the external diameter of the clamp 51 is equal to the external diameter of expansion set 7, and the lower section of the clamp 51 is provided with installation
Set 52, the internal diameter of the installation set 52 is more than the external diameter of screw rod 1.The number of the fin 521 is 4, the fin 521 it is vertical
Cross sectional shape is approximately right angled triangle.The cutting ferrule 6 also includes chute 62, and the chute 62 is located at the inwall of spacer 61,
The chute 62 is identical with the shape of cross section of fin 521, and the cross sectional shape of the chute 62 is rectangle, the chute 62 and the wing
Piece 521 is engaged.The width of the spacer 61 is less than the width of draw-in groove 72, and the outer wall of the spacer 61 is provided with several
Raised 611.The groove 71 is distributed in uniform circular, and the number of the groove 71 is 4.
Utility model works process：
Bolt in the course of the work, during installation, is put into connected work by a kind of expansion bolt of anti-rotation of this utility model
In the hole of part, nut 2 is rotated with spanner, actuating sleeve 5 is moved down, and fin 521 matches downwards along chute 62 with spacer 61
Close, drive the end radial dilatation of spacer 61, be embedded in installing hole through draw-in groove 72, spacer 61 can position expansion set 7, keep away
Exempt from expansion set 7 as screw rod 1 is rotated, raised 611 can increase the frictional force of installing hole and spacer 61, and screw rod 1 is produced with nut 2
Relative motion, screw rod 1 rises, and expansion set 7 is provided with groove 71, and caudal vertebra 11 is embedded in the afterbody of expansion set 7, orders about the afterbody footpath of expansion set 7
To expansion, the loosening easily of bolt can be avoided, 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 (6)
1. a kind of expansion bolt of anti-rotation, it is characterised in that：Including screw rod (1), nut (2), spring washer (3), packing ring
(4), actuating sleeve (5), cutting ferrule (6) and expansion set (7), the screw rod (1) is shaped as cylinder, and the upper end of the screw rod (1) sets
The top for having screw thread, the screw rod (1) is provided with nut (2), and spring washer (3) is provided with below the nut (2), described
Packing ring (4) is provided with below spring washer (3), caudal vertebra (11), the top of the caudal vertebra (11) are provided with below the screw rod (1)
Expansion set (7) is installed, the lower end of the expansion set (7) offers several grooves (71), the expansion set (4) if upper end offer
Dry draw-in groove (72), in the draw-in groove (72) cutting ferrule (6) is provided with, and the cutting ferrule (6) is provided with several spacers (61), described
Spacer (61) is engaged with draw-in groove (72), and in the cutting ferrule (6) actuating sleeve (5) is embedded with, and the actuating sleeve (5) is if be provided with
Dry fin (521), the fin (521) drives spacer (61) deformation.
2. a kind of expansion bolt of anti-rotation as claimed in claim 1, it is characterised in that：The actuating sleeve (5) also includes card
Plate (51) and installation set (52), the external diameter of the clamp (51) is equal to the external diameter of expansion set (7), is provided with below the clamp (51)
Installation set (52), the internal diameter of the installation set (52) is more than the external diameter of screw rod (1).
3. a kind of expansion bolt of anti-rotation as claimed in claim 1, it is characterised in that：The number of the fin (521) is 4
Individual, the vertical sectional shape of the fin (521) is approximately right angled triangle.
4. a kind of expansion bolt of anti-rotation as claimed in claim 1, it is characterised in that：The cutting ferrule (6) also includes chute
(62), the chute (62) positioned at spacer (61) inwall, the shape of cross section phase of the chute (62) and fin (521)
Together, the cross sectional shape of the chute (62) is rectangle, and the chute (62) is engaged with fin (521).
5. a kind of expansion bolt of anti-rotation as claimed in claim 1, it is characterised in that：The width of the spacer (61) is little
In the width of draw-in groove (72), the outer wall of the spacer (61) is provided with several raised (611).
6. a kind of expansion bolt of anti-rotation as claimed in claim 1, it is characterised in that：The groove (71) is in uniform circular
Distribution, the number of the groove (71) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061637.2U CN206111773U (en) | 2016-09-19 | 2016-09-19 | Prevent pivoted expansion bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061637.2U CN206111773U (en) | 2016-09-19 | 2016-09-19 | Prevent pivoted expansion bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111773U true CN206111773U (en) | 2017-04-19 |
Family
ID=58520357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621061637.2U Withdrawn - After Issue CN206111773U (en) | 2016-09-19 | 2016-09-19 | Prevent pivoted expansion bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351926A (en) * | 2016-09-19 | 2017-01-25 | 浙江亦宸五金有限公司 | Anti-rotating expansion bolt |
-
2016
- 2016-09-19 CN CN201621061637.2U patent/CN206111773U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351926A (en) * | 2016-09-19 | 2017-01-25 | 浙江亦宸五金有限公司 | Anti-rotating expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170419 Effective date of abandoning: 20181214 |
|
| AV01 | Patent right actively abandoned |