CN2158461Y - Spiral tube type expanding bolt - Google Patents
Spiral tube type expanding bolt Download PDFInfo
- Publication number
- CN2158461Y CN2158461Y CN 93204983 CN93204983U CN2158461Y CN 2158461 Y CN2158461 Y CN 2158461Y CN 93204983 CN93204983 CN 93204983 CN 93204983 U CN93204983 U CN 93204983U CN 2158461 Y CN2158461 Y CN 2158461Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- cone
- expansion
- screw
- sleeve
- 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
Links
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- Dowels (AREA)
Abstract
The utility model relates to an expansion screw bolt, comprising a screw nut, a washer, a screw bolt and an expansion sleeve tube. The washer is sheathed on the screw rod, the screw nut is sheathed on a screw thread buckle of the screw rod, the lower end of the screw rod is a cone, the conical surface of the cone is provided with a convex wedge, and the cone is the corresponding to the expansion sleeve tube sheathed on the screw rod and provided with a groove seam and the convex wedge, and a hard plastic sleeve tube tightly connected with one end of the expansion sleeve tube is sheathed on the screw rod. The utility model provides a spiral tube type expansion screw bolt having the advantages of good anchoring performance, good stability, easy processing and convenient use.
Description
The utility model relates to bolt, particularly a kind of EXPANSION ANCHOR BOLTS.
The bolt that relates to expansion at present is multiple, as " a kind of expansion ring type swell fixture " Chinese patent literature that goes out by retrieval, has adopted the hard material that has a vertical fracture by several piece to form expanding ring and has been enclosed within cone, yet in practical application, be difficult for making the screw anchoring.
The utility model has designed at above-mentioned situation a kind ofly to have simple in structurely, and cost is low, easy for installation, grappling convenience, grappling, good stability, easily processing, pipe crimping formula EXPANSION ANCHOR BOLTS easy to use.
The utility model is achieved by following manner: a kind of pipe crimping formula EXPANSION ANCHOR BOLTS, comprise nut, packing ring, screw rod and expansion sleeve, gasket sleeve is on screw rod, nut is spun on the screw thread of screw rod, the lower end of screw rod is a cone, protruding wedge is set on the conical surface of cone, and it is corresponding to be enclosed within the expansion sleeve that has the line of rabbet joint on the screw rod and have protruding wedge, and the duroplasts casing pipe sleeve that is right after expansion sleeve one end is on screw rod.
The utlity model has simple in structure, cost is low, can be widely used in being mounted on the equipment on the building.
Accompanying drawing 1 is the utility model structural representation;
The utility model embodiment, as shown in the figure, a kind of pipe crimping formula EXPANSION ANCHOR BOLTS, comprise nut 8, packing ring 7, bolt 9 and expansion sleeve 4, screw thread is arranged at bolt 9 tops, and packing ring 7 is enclosed within on the bolt 9, and nut 8 is spun on the screw thread of bolt 9, the lower end is cone 1, have the expansion sleeve line of rabbet joint 3 and have the protruding wedge of expansion sleeve 5 corresponding on boring protruding wedge 2 and be enclosed within bolt 9 in the garden that is provided with on the conical surface of cone 1, and the duroplasts sleeve pipe 6 that is right after expansion sleeve 4 is enclosed within on the bolt 9.The external diameter of said duroplasts sleeve pipe 6 is identical with the diameter of the big end of cone 1, and its internal diameter is consistent with the external diameter of bolt 9.It is corresponding with the expansion sleeve line of rabbet joint 3 on the expansion sleeve 4 that protruding wedge 2 is bored in garden on the conical surface of said cone 1, screw the nut 8 on the bolt 9, garden on the cone 1 is bored protruding wedge 2 and is embedded in the expansion sleeve line of rabbet joint of expansion sleeve 4, make expansion sleeve 4 distendings, because the protruding wedge 5 of two expansion sleeves on the expansion sleeve 4 snaps in the hole of the building that is mounted, and makes bolt 9 be anchored the purpose that reaches fastening company.The external diameter of said duroplasts sleeve pipe 6 is identical with the big end external diameter of cone 1, the external diameter of its duroplasts sleeve pipe 6 just and the aperture on the building match, bolt 9 is stabilized in the hole, because the cost of duroplasts sleeve pipe 6 hangs down expansion sleeve 4 fabricating cost are reduced in addition, garden on the said cone 1 is bored protruding wedge 2 and is adopted the once-through of cold pier method, and expansion sleeve 4 usefulness sheet metal punching blankings and rolling form.
The utility model can go out large, medium and small all size series product according to usage requirement and condition different designs, to satisfy the different requirements of using of user.
Claims (2)
1, a kind of pipe crimping formula EXPANSION ANCHOR BOLTS, comprise nut, packing ring, screw rod and expansion sleeve, gasket sleeve is on screw rod, nut is spun on the screw thread of screw rod, the lower end of screw rod is a cone, it is characterized in that: protruding wedge is set on the conical surface of cone, and be enclosed within screw rod on have a line of rabbet joint and corresponding with the expansion sleeve of protruding wedge, the duroplasts casing pipe sleeve that is right after expansion sleeve one end is on screw rod.
2, a kind of pipe crimping formula EXPANSION ANCHOR BOLTS as claimed in claim 1 is characterized in that: the external diameter of duroplasts sleeve pipe is identical with the external diameter of the big end of cone, and its internal diameter is identical with the external diameter of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204983 CN2158461Y (en) | 1993-03-01 | 1993-03-01 | Spiral tube type expanding bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204983 CN2158461Y (en) | 1993-03-01 | 1993-03-01 | Spiral tube type expanding bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2158461Y true CN2158461Y (en) | 1994-03-09 |
Family
ID=33788372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93204983 Expired - Fee Related CN2158461Y (en) | 1993-03-01 | 1993-03-01 | Spiral tube type expanding bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2158461Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191513B (en) * | 2006-11-24 | 2010-09-01 | 徐发煌 | Protuberant folding expansion bolt |
| CN104976203A (en) * | 2015-07-30 | 2015-10-14 | 安庆市江城冶金机械有限公司 | Tool for quickly disassembling broken pipe |
| WO2016019912A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
-
1993
- 1993-03-01 CN CN 93204983 patent/CN2158461Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191513B (en) * | 2006-11-24 | 2010-09-01 | 徐发煌 | Protuberant folding expansion bolt |
| WO2016019912A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| CN104976203A (en) * | 2015-07-30 | 2015-10-14 | 安庆市江城冶金机械有限公司 | Tool for quickly disassembling broken pipe |
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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 |