CN2649847Y - Improved expansion screw structure - Google Patents
Improved expansion screw structure Download PDFInfo
- Publication number
- CN2649847Y CN2649847Y CN 03277210 CN03277210U CN2649847Y CN 2649847 Y CN2649847 Y CN 2649847Y CN 03277210 CN03277210 CN 03277210 CN 03277210 U CN03277210 U CN 03277210U CN 2649847 Y CN2649847 Y CN 2649847Y
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- CN
- China
- Prior art keywords
- embedding
- pulling
- expansion sleeve
- circular cone
- setscrew
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- Expired - Fee Related
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Abstract
An improved expansion screw structure is an expansion cylinder with a cushion block sleeved on the front part of the screw external surface in an integrated manner. An embedding section is provided correspondingly on the external surface of the cushion block. Besides, a taper block is arranged at the external end of the screw. A matching embedding part is provided at a position where the external surface of the taper block and the internal surface of the expansion screw are related. Through the embedding section on the external surface of the cushion block of the expansion screw and the embedding part between the paper block and the expansion screw, force bearing point is provided at time of operation and the expansion screw can expand outwards to realize embedding.
Description
Technical field
The utility model relates to a kind of setscrew structure of improvement, refer in particular to a kind of cushion block that is formed with the tool two corresponding embedding sections of pulling in the expansion sleeve front end, and between expansion sleeve and circular cone, be provided with the corresponding embedding portion of pulling, make it in using process, utilize the embedding of this cushion block Duan Lingqi that pulls to use general open-end wrench location, to have a suitable force bearing point, and can not produce the idle running phenomenon between this expansion sleeve, and allow expansion sleeve can be launched the setscrew of build-in location really.
Background technique
Consult shown in Figure 10, often can be in general RC floor, iron plate, stone material, base materials such as hollow brick are provided with setscrew, establish combination for group, connect or hang other article, general common setscrew 4 is to be arranged with packing ring 42 respectively on a screw 41,43, and be provided with in addition and can be expansion sleeve 44 cylindraceous outside the screw 41 for being sheathed on, this expansion sleeve 44 offers two corresponding ditch mortises 441 in the outer end lateral margin, be provided with the contact piece 45 of toroidal again in these screw 41 outer end spiral shells, in expansion sleeve 44, being screwed into contact by contact piece 45, make expansion sleeve 44 front ends outwards open distortion, and the certain build-in of energy is in base material by groove 441 places.Its major defect is:
Open distortion though expand outside above-mentioned setscrew can reach and feed to, with the expection effect of certain build-in in base material, but also in using, its actual enforcement exists, the outer rim place of expansion sleeve and spiral shell are located at the contact piece and the expansion sleeve inner edge place of screw outer end, all be to be a corresponding toroidal, the intermarginal structure that there is no any for the inlay card location in expansion sleeve outer rim and contact piece and expansion sleeve, make and establish in the process in spiral shell, it all can produce idle running each other, and there is not the defective of force bearing point, cause expansion sleeve outwards to expand really to open the situation of build-in in base material to take place, wait to solve and improve and on operation is implemented, there is very big inconvenience puzzlement part.
Summary of the invention
Purpose of the present utility model provides a kind of setscrew structure of improvement, it mainly is to be sheathed on the one-body molded expansion sleeve that cushion block is arranged of front end in the screw outer rim, and the cushion block outer rim is formed with the corresponding embedding section of pulling, be provided with circular cone in screw outer end spiral shell in addition, circular cone outer rim and expansion sleeve inner edge opposite position place are formed with the embedding that the matches portion of pulling, utilize the embedding section of pulling of expansion sleeve cushion block outer rim and the embedding between circular cone and the expansion sleeve portion of pulling, make it on operation is implemented, have force bearing point, reach the purpose that can make the really outside dilatancy build-in of expansion sleeve.
The purpose of this utility model is achieved in that a kind of setscrew structure of improvement, it mainly is made up of screw, expansion sleeve and circular cone, it is characterized in that: the outer rim of this screw is arranged with expansion sleeve, this expansion sleeve front end is one-body molded cushion block, this cushion block outer rim is formed with the corresponding embedding section of pulling, this expansion sleeve inner edge is provided with the embedding portion of pulling, this expansion sleeve outer rim has been opened most grooves, this screw outer end is established with its mutual spiral shell for the screw of circular cone and is combined, and this circular cone outer rim is formed with the corresponding embedding portion of pulling to the embedding portion of pulling that should expansion sleeve.
Embedding between this expansion sleeve and the circular cone portion of pulling is for corresponding plane plane embedding portion and the horizontal plane embedding mutual embedding of portion of pulling of pulling is pulled and combined.Embedding between this expansion sleeve and the circular cone portion of pulling is for corresponding plane plane embedding portion and the clinoplain embedding mutual embedding of portion of pulling of pulling is pulled and combined.Embedding between this expansion sleeve and the circular cone portion of pulling is for corresponding concavo-convex concavity embedding portion and the embedding of the inclination convex mutual embedding of portion of pulling of pulling is pulled and combined.Embedding between this expansion sleeve and the circular cone portion of pulling is for corresponding concavo-convex concavity embedding portion and the horizontal convex embedding mutual embedding of portion of pulling of pulling is pulled and combined.Embedding between this expansion sleeve and the circular cone portion of pulling is for the convex embedding of corresponding convex-concave shape portion and the embedding of the inclination concavity mutual embedding of portion of pulling of pulling is pulled and combined.Embedding between this expansion sleeve and the circular cone portion of pulling is for the convex embedding of corresponding convex-concave shape portion and the horizontal concavity embedding mutual embedding of portion of pulling of pulling is pulled and combined.This expansion sleeve outer rim is to being formed with planar section in the embedding portion of pulling place.This expansion sleeve outer rim is to being formed with arc section in the embedding portion of pulling place.
Further specify below in conjunction with preferred embodiment and accompanying drawing.
Description of drawings
Fig. 1 is the utility model embodiment 1 a perspective exploded view.
Fig. 2 is another perspective exploded view of the utility model embodiment 1.
Fig. 3 is the cross-sectional schematic that the utility model embodiment 1 group is established end.
Fig. 4 is the utility model embodiment 2 a perspective exploded view.
Fig. 5 is that the utility model embodiment 2 group is established the end cross-sectional schematic.
Fig. 6 is the utility model embodiment 3 a perspective exploded view.
Fig. 7 is that the utility model embodiment 3 group is established the end cross-sectional schematic.
Fig. 8 is the utility model embodiment 4 a perspective exploded view.
Fig. 9 is that the utility model embodiment 4 group is established the end cross-sectional schematic.
Figure 10 is the perspective exploded view of conventional construction.
Embodiment
Consult Fig. 1-shown in Figure 2, the utility model is made up of screw 1, expansion sleeve 2 and circular cone 3;
The outer rim of this screw 1 is arranged with expansion sleeve 2, the front end of this expansion sleeve 2 is one-body molded cushion block 21, these cushion block 21 outer rims then are formed with the corresponding embedding section of pulling 211, most grooves 22 have been opened in expansion sleeve 2 outer rims in addition, inner edge then is formed with the plane embedding portion 23 of pulling, and expansion sleeve 2 outer rims are formed with planar section 24 or arc section 25 to portion 23 places of should the plane embedding pulling, can establish with its mutual spiral shell for the screw 31 of circular cone 3 in screw 1 outer end and to combine, be formed with the corresponding horizontal plane embedding portion 32 of pulling in the plane embedding of the then corresponding expansion sleeve 2 of these circular cone 3 outer rims portion 23 of pulling, as shown in Figure 1, or the clinoplain embedding portion 33 of pulling, as shown in Figure 2.
Consult shown in Figure 3, establish in the process at the use spiral shell, utilize general common open-end wrench to be embedded in the embedding section of pulling 211 places of expansion sleeve 2 cushion blocks 21, to make it have a location effect, and because outer intermarginal corresponding plane embedding portion 23 and the horizontal plane embedding portion 32 of pulling of pulling that is provided with of expansion sleeve 2 inner edges and circular cone 3, or the clinoplain embedding portion 33 of pulling, can give the embedding location of pulling mutually and not produce idle running, and make this circular cone 3 can be screwed into expansion sleeve 2 inner edges really smoothly, make this expansion sleeve 2 outwards open distortion and fix by groove 22 places.
Consult Fig. 4-shown in Figure 5,3 of expansion sleeve 2 of the present utility model and circular cones, not only can be shown in embodiment 1 utilize plane embedding portion 23 and horizontal plane embedding portion 32 or the clinoplain embedding portion's 33 mutual embeddings location of pulling of pulling of pulling of pulling, also can be as Fig. 4-shown in Figure 5, utilize the corresponding concavity embedding of concave, convex portion 26 and the embedding of the inclination convex portion 34 of pulling of pulling, mutually the embedding location of pulling.
Consult Fig. 6-shown in Figure 7,3 of expansion sleeve 2 of the present utility model and circular cones, not only can be shown in embodiment 1 utilize plane embedding portion 23 and horizontal plane embedding portion 32 or the clinoplain embedding portion's 33 mutual embeddings location of pulling of pulling of pulling of pulling, also can be as Fig. 6-shown in Figure 7, utilize the corresponding concavity embedding of concave, convex portion 26 and the horizontal convex embedding portion's 35 mutual embeddings location of pulling of pulling of pulling.
Embodiment 4
Consult Fig. 8-shown in Figure 9, the utility model also can utilize protruding, recessed corresponding convex embedding portion 27 and the embedding of inclination concavity portion 36 or the horizontal concavity embedding portion's [not shown in the figures] of pulling of pulling of pulling to give the mutual embedding location of pulling, and can have the effect that certain location does not produce idle running equally.
By the above, the composition of this assembly and use implementation, the utility model is compared with tradition as can be known, because the utility model is formed with the corresponding embedding section of pulling in expansion sleeve cushion block outer rim, and also establish the corresponding various embeddings portion of pulling in expansion sleeve inner edge and circular cone opposite position place, make it on operation is implemented, have certain force bearing point, implement and can be convenient to operation.
In sum, embodiment of the present utility model really can reach desired use effect, and its disclosed concrete structure had not only seen in the like product again, also be not disclosed in application before, have novelty, creativeness and practicability.
Claims (9)
1, a kind of setscrew of improvement structure, it mainly is made up of screw, expansion sleeve and circular cone, it is characterized in that: the outer rim of this screw is arranged with expansion sleeve, this expansion sleeve front end is one-body molded cushion block, this cushion block outer rim is formed with the corresponding embedding section of pulling, this expansion sleeve inner edge is provided with the embedding portion of pulling, this expansion sleeve outer rim has been opened most grooves, this screw outer end is established with its mutual spiral shell for the screw of circular cone and is combined, and this circular cone outer rim is formed with the corresponding embedding portion of pulling to the embedding portion of pulling that should expansion sleeve.
2, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for corresponding plane plane embedding portion and the horizontal plane embedding mutual embedding of portion of pulling of pulling is pulled and is combined.
3, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for corresponding plane plane embedding portion and the clinoplain embedding mutual embedding of portion of pulling of pulling is pulled and is combined.
4, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for corresponding concavo-convex concavity embedding portion and the embedding of the inclination convex mutual embedding of portion of pulling of pulling is pulled and is combined.
5, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for corresponding concavo-convex concavity embedding portion and the horizontal convex embedding mutual embedding of portion of pulling of pulling is pulled and is combined.
6, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for the convex embedding of corresponding convex-concave shape portion and the embedding of the inclination concavity mutual embedding of portion of pulling of pulling is pulled and is combined.
7, the setscrew of improvement according to claim 1 structure is characterized in that: the portion of pulling of the embedding between this expansion sleeve and circular cone, and for the convex embedding of corresponding convex-concave shape portion and the horizontal concavity embedding mutual embedding of portion of pulling of pulling is pulled and is combined.
8, the setscrew of improvement according to claim 1 structure is characterized in that: this expansion sleeve outer rim is to being formed with planar section in the embedding portion of pulling place.
9, the setscrew of improvement according to claim 1 structure is characterized in that: this expansion sleeve outer rim is to being formed with arc section in the embedding portion of pulling place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277210 CN2649847Y (en) | 2003-07-18 | 2003-07-18 | Improved expansion screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277210 CN2649847Y (en) | 2003-07-18 | 2003-07-18 | Improved expansion screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649847Y true CN2649847Y (en) | 2004-10-20 |
Family
ID=34331763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277210 Expired - Fee Related CN2649847Y (en) | 2003-07-18 | 2003-07-18 | Improved expansion screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649847Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511420A (en) * | 2012-11-02 | 2014-01-15 | 同济大学 | Single-edge fastening bolt |
| CN107605901A (en) * | 2017-11-09 | 2018-01-19 | 吕双福 | A kind of high-precision expansion bolt |
| CN107630879A (en) * | 2017-11-09 | 2018-01-26 | 吕双福 | A kind of high-precision expansion bolt |
| CN108026955A (en) * | 2015-09-23 | 2018-05-11 | 海福乐柏林有限及两合公司 | The connection expansible plug of expansion sleeve injection encapsulated |
-
2003
- 2003-07-18 CN CN 03277210 patent/CN2649847Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511420A (en) * | 2012-11-02 | 2014-01-15 | 同济大学 | Single-edge fastening bolt |
| CN108026955A (en) * | 2015-09-23 | 2018-05-11 | 海福乐柏林有限及两合公司 | The connection expansible plug of expansion sleeve injection encapsulated |
| CN108026955B (en) * | 2015-09-23 | 2020-03-06 | 海福乐柏林有限及两合公司 | Connecting expansion bolt for injection molding and encapsulation of expansion sleeve |
| US10584732B2 (en) | 2015-09-23 | 2020-03-10 | Häfele Berlin Gmbh & Co Kg | Connecting expansion bolts over-molded with expansion sleeves |
| CN107605901A (en) * | 2017-11-09 | 2018-01-19 | 吕双福 | A kind of high-precision expansion bolt |
| CN107630879A (en) * | 2017-11-09 | 2018-01-26 | 吕双福 | A kind of high-precision expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |