CN2334934Y - Expansion screw bolt - Google Patents
Expansion screw bolt Download PDFInfo
- Publication number
- CN2334934Y CN2334934Y CN 98217645 CN98217645U CN2334934Y CN 2334934 Y CN2334934 Y CN 2334934Y CN 98217645 CN98217645 CN 98217645 CN 98217645 U CN98217645 U CN 98217645U CN 2334934 Y CN2334934 Y CN 2334934Y
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- CN
- China
- Prior art keywords
- expansion
- arc
- slices
- utility
- model
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an expansion bolt which is especially suitable to be used as a fastener for construction engineering and decoration and hardware industry. The utility model is formed by connecting a taper sleeve and expansion pipes into a whole through bolts and washers, wherein expansion pipes which are perpendicular to one another are connected into a whole by cambered slices through connection blocks connected with the cambered slices and partition slices of which the middle parts are provided with holes, and gaps are formed among the cambered slices. When in use, the screw bolt is screwed into an expanding sleeve and the taper sleeve, and the expanding sleeve is expanded and opened by using the taper and the convex column of the taper sleeve to play a tightening effect. The expansion screw bolt with the structure can be made of board punching blanking which is processed by using moulds, and the utility model has the advantages of no need of machine cut, high material utilization, high productivity and low manufacture cost.
Description
The utility model relates to a kind of fastening piece, suits especially in the EXPANSION ANCHOR BOLTS of industry uses such as construction engineering, decoration five metals.
The patent of existing pass EXPANSION ANCHOR BOLTS is a lot, but its structure mainly is made up of expand tube, tapered sleeve, bolt three parts, expand tube wherein is no matter be an end, or it all is to be made into through machining by tubing that opening is arranged on the end walls, manufacturing, processing cost height, takes material, time-consuming.As the patent No. 91202275.2 " conical nut type setscrew ".
The purpose of this utility model is to provide a kind of EXPANSION ANCHOR BOLTS, except that all functions with EXPANSION ANCHOR BOLTS, and stock utilization height, manufacturing efficiency height, and it is low to make processing cost.
The utility model is to realize like this, EXPANSION ANCHOR BOLTS is linked into an integrated entity tapered sleeve, expand tube by bolt, packing ring and forms, and expansion set connects into each other vertical integral body by coupled contiguous block with the partition of middle band through hole by arc-like sheet, and gapped between arc-like sheet.
Fig. 1. structural representation of the present utility model
Fig. 2. the A-A view of Fig. 1
Fig. 3. the unfolded drawing of expansion set
Below in conjunction with accompanying drawing embodiment of the present utility model is further described
Tapered sleeve (1) upper end is conical, and outward edge has a trapezoidal projection (2), and the lower end is cylindrical, and the centre is a screw.
Expansion set (7) connects into each other vertical integral body by coupled 2 contiguous blocks (6) with the partition (5) of middle band through hole by 2 arc-like sheets (3) that have stiffening rib, and 2 gaps (4) are arranged between two arc-like sheets (3).
Expansion set (7) becomes expansion shape shown in Figure 3 by the plate punching out, the expansion set (7) that has the arc-like sheet (3) of 2 ring stiffeners to connect into again on mould bends.
Also can connect to form the expansion set that 3 or 4 gaps are arranged by arc-like sheet and the partition made with quadrat method by 3 or 4 band stiffening ribs.
During use, bored the hole in the installation position, tapered sleeve (1) is enclosed within the opening end of expansion set (7) earlier, and makes projection (2) alignment gap (4) on it, put into the hole together, put the object that to fix again, make the expansion set (7) in the aligning boring of object hole, at last bolt (9) is passed packing ring (8) and object hole and enter expansion set (7), tapered sleeve (1), constantly screw bolt (9), with expansion set (7) distending, play fastening effect with the tapering on the tapered sleeve (1) and projection (2).
The utility model compared with prior art, original expansion set all is to be made into by tube material, also need cut Processing, time-consuming, take material. And the structure of this expansion bolt, can be by using again Mould Machining behind the sheet material punching out blanking Become, do not need machine cut, stock utilization height, high productivity, thereby low cost of manufacture.
Claims (3)
1. EXPANSION ANCHOR BOLTS, by bolt (9), packing ring (8) tapered sleeve, expand tube are linked into an integrated entity and to form, it is characterized in that expansion set (7) connects into each other vertical integral body by coupled contiguous block (6) with the partition (5) of middle band through hole by arc-like sheet (3), and between arc-like sheet (3) gapped (4).
2. EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that tapered sleeve (1) upper end for conical, and outward edge has a trapezoidal projection (2), and the lower end is cylindrical, and the centre is a screw; Arc-like sheet has 2 ring stiffeners on (3), and being connected into by two arc-like sheets (3) and partition (6) has the expansion set in 2 gaps (4) (7) on the whole.
3. EXPANSION ANCHOR BOLTS according to claim 1 and 2 is characterized in that connecting to form the expansion set that 3 or 4 gaps are arranged by the arc-like sheet and the partition of 3 or 4 band stiffening ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217645 CN2334934Y (en) | 1998-07-27 | 1998-07-27 | Expansion screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217645 CN2334934Y (en) | 1998-07-27 | 1998-07-27 | Expansion screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2334934Y true CN2334934Y (en) | 1999-08-25 |
Family
ID=33970177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98217645 Expired - Fee Related CN2334934Y (en) | 1998-07-27 | 1998-07-27 | Expansion screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2334934Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453829C (en) * | 2006-04-10 | 2009-01-21 | 张金明 | Wall nail |
| CN113260795A (en) * | 2019-02-25 | 2021-08-13 | 海福乐柏林有限及两合公司 | Expansion joint |
-
1998
- 1998-07-27 CN CN 98217645 patent/CN2334934Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453829C (en) * | 2006-04-10 | 2009-01-21 | 张金明 | Wall nail |
| CN113260795A (en) * | 2019-02-25 | 2021-08-13 | 海福乐柏林有限及两合公司 | Expansion joint |
| CN113260795B (en) * | 2019-02-25 | 2024-03-08 | 海福乐柏林有限及两合公司 | Expansion connecting piece |
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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 |