CN2387303Y - Expansion sheet bolt - Google Patents
Expansion sheet bolt Download PDFInfo
- Publication number
- CN2387303Y CN2387303Y CN 99242708 CN99242708U CN2387303Y CN 2387303 Y CN2387303 Y CN 2387303Y CN 99242708 CN99242708 CN 99242708 CN 99242708 U CN99242708 U CN 99242708U CN 2387303 Y CN2387303 Y CN 2387303Y
- Authority
- CN
- China
- Prior art keywords
- expansion piece
- screw rod
- screw bolt
- bolt
- intumescent sheet
- 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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- Dowels (AREA)
Abstract
The utility model relates to a screw bolt with an expansion piece, which comprises a nut, a plain cushion, and a screw rod, of which one end is provided with a segment of taper. The screw bolt with an expansion piece is characterized in that diameters of both ends of the screw rod are the same. A segment of root part with a taper is stuck with the expansion piece. A reverse hook is arranged on the outer circular arc of the expansion piece. The screw bolt with an expansion piece has the advantages of simple manufacture technology, material saving, and high installation precision. The screw bolt with an expansion piece can be applied to various building and installation projects, such as fixing with a wall body, etc.
Description
The utility model relates to the self-locking EXPANSION ANCHOR BOLTS of using in a kind of building installation engineering.
The structure of the EXPANSION ANCHOR BOLTS of prior art is: adopt the Forging Technology manufacturing to send as an envoy to an end for thick head and have one section tapering, the other end is threaded screw rod and has compression spring, plain cushion and nut, on screw rod, be set with and have the expansion tube that opening slits, thick diameter goes out about 20% greatly than a threaded diameter, as the screw rod of M10, thick head is 12.The shortcoming of this bolt is: 1) manufacturing process complexity needs to use Forging Technology to get thick head; 2) take material, the expansion tube materials are more; 3) assembly precision is poor, during as the bolt of dress M10, then need beat the hole of 12 millimeters of to body of wall punching.
The purpose of this utility model provides that a kind of preparation process is simple, and cost is lower, the intumescent sheet bolt that installation precision is higher.
The purpose of this utility model is achieved in that it comprises that nut, plain cushion and an end have the screw rod of one section tapering, is characterized in that: screw rod two ends diameter is identical, and the one section root that has tapering pastes and is placed with intumescent sheet, has overhead kick on the intumescent sheet external arc.
The utlity model has following advantage: preparation process is simple, saves material, the installation precision height.
Elaborate below in conjunction with accompanying drawing:
Fig. 1 the utility model structural representation
Fig. 2 is that Fig. 1 is along the A---A sectional view
1 is nut among the figure, and 2 is plain cushion, and 3 is screw rod, and 4 is intumescent sheet.As seen from the figure, the utility model adopts the intumescent sheet of two bands overhead kick to paste the one section root (overhead kick is slightly larger than screw diameter, exceeds 0.5 millimeter approximately) that is placed on screw rod band tapering, replaces original expansion tube, saves many materials.Simultaneously because screw rod two ends diameter is identical, process conveniently first, second installation precision improves, and it is more closely combined with body of wall.
Claims (1)
- A kind of intumescent sheet bolt comprises that nut (1), plain cushion (2) and an end have the screw rod (3) of one section tapering.It is characterized in that: screw rod (3) two ends diameter is identical, and the one section root that has tapering pastes and is placed with intumescent sheet (4), has overhead kick on intumescent sheet (4) external arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99242708 CN2387303Y (en) | 1999-09-06 | 1999-09-06 | Expansion sheet bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99242708 CN2387303Y (en) | 1999-09-06 | 1999-09-06 | Expansion sheet bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387303Y true CN2387303Y (en) | 2000-07-12 |
Family
ID=34029248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99242708 Expired - Fee Related CN2387303Y (en) | 1999-09-06 | 1999-09-06 | Expansion sheet bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387303Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195781A (en) * | 2013-04-26 | 2013-07-10 | 铜陵浩荣电子科技有限公司 | Improved expansion bolt with multiple fastening stress points |
-
1999
- 1999-09-06 CN CN 99242708 patent/CN2387303Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195781A (en) * | 2013-04-26 | 2013-07-10 | 铜陵浩荣电子科技有限公司 | Improved expansion bolt with multiple fastening stress points |
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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 |