CN2390045Y - Double expanding and double-tightening drawbolt - Google Patents
Double expanding and double-tightening drawbolt Download PDFInfo
- Publication number
- CN2390045Y CN2390045Y CN 99225139 CN99225139U CN2390045Y CN 2390045 Y CN2390045 Y CN 2390045Y CN 99225139 CN99225139 CN 99225139 CN 99225139 U CN99225139 U CN 99225139U CN 2390045 Y CN2390045 Y CN 2390045Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- double
- screw rod
- expansion
- fastening
- 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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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to a double-expansion and double-fastening type fastening bolt, which belongs to the field of machinery parts, and particularly relates to the fastening bolt. The purpose of the utility model is to provide the double-expansion and double-fastening type fastening bolt which can cause the bolt not to generate looseness, and tightly lock and fasten the entire bolt in a wall body. The double-expansion and double-fastening type fastening bolt is composed of the bolt, a screw rod which is fixedly connected to the bolt, and a screw cap which is matched with screw threads on the screw rod. Two conical sleeves and an expansion body are sheathed on the screw rod between the bolt and the screw cap. One transverse and perforated opening is respectively arranged on the two conical sleeves. While two transverse openings are arranged on the expansion body. The double-expansion and double-fastening type fastening bolt has the advantages of simple use, convenient disassembly, and safety after use.
Description
The utility model belongs to the mechanical parts field, particularly relates to a kind of clamping bolt.
The general employed clamping bolt of people is tapered by an end at present, the screwed bolt shank of the other end and form with the nut of the threads engaged of bolt shank, a cylindrical shroud is arranged between bolt shank upper cap nut and taper, and cylindrical shroud and taper corresponding position have opening longitudinally.During use the bolt shank taper is put into body of wall, the other end screws by nut, promotes cylindrical shroud, and the opening end of cylindrical shroud expands along taper, and clamping bolt is fastened in the body of wall.But this clamping bolt only is an internal heads to expand, smaller with the body of wall surface of contact, and there is certain space the outside with body of wall, thereby make the outside of bolt loosening, do not lock whole bolt, and when this clamping bolt is used for hanging object, make the downward landing of object easily.
In order to solve above-mentioned shortcoming, the purpose of this utility model provides that a kind of that bolt is not produced is loosening, in body of wall, whole bolt is locked, and firm double expanding and double-tightening clamping bolt.
The screw rod that the utility model is fixedly connected by bolt and with bolt and form with the nut of threads engaged on the screw rod, on the screw rod between bolt and the nut, be with two conical sleeves and an expander, on two conical sleeves, the opening of a lateral direction penetrating is arranged respectively, and two transverse openings are arranged on the expander.
Good effect of the present utility model is to use simply, convenient disassembly, and uses the back safe and reliable.
Accompanying drawing 1 is a schematic representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is done further narration:
The utility model is by bolt 1, and the screw rod 4 of fixedlying connected with bolt 1 and form with the nut 3 of threads engaged on the screw rod 4,6,5 and expanders 2 of two conical sleeves are arranged between bolt 1 and nut 3, conical sleeve 6, expander 2, conical sleeve 5 are arranged in order, be enclosed within on the screw rod 4, the opening that a lateral direction penetrating is arranged on conical sleeve 6,5 has two openings that laterally do not connect at least on the expander 2.Earlier conical sleeve 6, expander 2, conical sleeve 5 are enclosed within on the screw rod 4 successively during use, the conehead end of conical sleeve 6,5 inserts expander 2, rotating bolt 1 then, driving screw rod 4 rotates, nut 3 is moved inward with screw thread, thereby make conical sleeve 5,6 gradually to expander 2 inner moving, making expander 2 expand to reach with body of wall tightens, when conical sleeve 5,6 to expander 2 is inner when moving, two conical sleeves 5,6 tighten simultaneously, hold screw rod 4 tightly, it is loosening that screw rod 4 is not produced, thereby reached the effect of two bloated two-restrictions.
Claims (1)
1, a kind of double expanding and double-tightening clamping bolt, the screw rod (4) that is fixedly connected by bolt (1) and with bolt (1) and form with the nut (3) of threads engaged on the screw rod (4), it is characterized in that: on the screw rod (4) between bolt (1) and the nut (3), be with two conical sleeves (6), (5) and an expander (2), on two conical sleeves (6), (5), the opening of a lateral direction penetrating is arranged respectively, and two transverse openings are arranged on the expander (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225139 CN2390045Y (en) | 1999-09-22 | 1999-09-22 | Double expanding and double-tightening drawbolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225139 CN2390045Y (en) | 1999-09-22 | 1999-09-22 | Double expanding and double-tightening drawbolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2390045Y true CN2390045Y (en) | 2000-08-02 |
Family
ID=34015063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225139 Expired - Fee Related CN2390045Y (en) | 1999-09-22 | 1999-09-22 | Double expanding and double-tightening drawbolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2390045Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052373B (en) * | 2009-10-27 | 2012-08-15 | 中国建筑科学研究院 | Nested tooth surface expansion pipe type expansion anchor bolt |
| CN105065401A (en) * | 2015-08-12 | 2015-11-18 | 深圳亚太航空技术有限公司 | Expansion bolt assembly |
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
-
1999
- 1999-09-22 CN CN 99225139 patent/CN2390045Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052373B (en) * | 2009-10-27 | 2012-08-15 | 中国建筑科学研究院 | Nested tooth surface expansion pipe type expansion anchor bolt |
| CN105065401A (en) * | 2015-08-12 | 2015-11-18 | 深圳亚太航空技术有限公司 | Expansion bolt assembly |
| CN105065401B (en) * | 2015-08-12 | 2018-03-02 | 深圳亚太航空技术有限公司 | expansion bolt assembly |
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
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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 |