CN2494448Y - Fastener - Google Patents
Fastener Download PDFInfo
- Publication number
- CN2494448Y CN2494448Y CN 01233848 CN01233848U CN2494448Y CN 2494448 Y CN2494448 Y CN 2494448Y CN 01233848 CN01233848 CN 01233848 CN 01233848 U CN01233848 U CN 01233848U CN 2494448 Y CN2494448 Y CN 2494448Y
- Authority
- CN
- China
- Prior art keywords
- expansible
- screw head
- fastening piece
- sleeve
- bushing
- 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 - Lifetime
Links
Abstract
The utility model relates to a fastener applied to thin plate of brittle material, which comprises a screw with a frustum shaped screw head, and a bushing sleeved on the outer side of the screw. An extensible plate matched with the screw head is arranged at the lower of the bushing, the lower end of the extensible plate is provided with an outward protuberance, the bushing is provided with a lifting positioning port for the screw head on the extensible plate. The utility model has advantages of simple structure, easy operation, and less processing difficulties. The shock-proof performance can be further increased when the outer side of the bushing is provided with a layer of or a sleeve of elastic shock-proof material.
Description
Technical field
The utility model relates to a kind of fastening piece that is applied to the brittle material thin plate.
Background technique
Adopt at present post-cut fixedly during the brittle material thin plate, must be first on sheet material urgent firmware bury the hole underground, put into fastening piece then, fastening piece and sheet material are tightened together.Wherein a kind of hole shape is to open up the hole machine after sheet material boring is reached prescribed depth, and the control drill bit is made ring-type at the bottom of to the hole and expanded boring, and is long and make that to have the ring-type side at the bottom of the hole recessed.At this pass, it is to adopt rivet as extension fixture that kind of a fastening piece is arranged, although this fastening piece has its characteristics, but the structure of fastening piece comparatively the shape of complexity and rivet and other constituent element of fastening piece and size cooperate must be very accurate, difficulty of processing is bigger, otherwise will fastening reliability be exerted an influence.
Summary of the invention
Technical problem to be solved in the utility model is exactly the structure of simplifying than fastening piece.The utility model by the following technical solutions for this reason: it comprises that screw head is the screw rod of taper type and is enclosed within the sleeve in the screw rod outside, lower cartridge is expansible that cooperates with screw head, expansible underpart has outside outstanding, and sleeve has screw head rising position-limitting mouth on expansible.Because adopt this technological scheme, the utility model utilizes screw head as expansion member, cost simple in structure is low, and is simple to operate, can finish at engineering site, during installation to unstressed at the bottom of the hole.And the error leeway that the taper type bolt head cooperates with the miscellaneous part size is bigger as the fastening piece of expansion member with rivet, and expansible does not have necessary intilted restriction, and difficulty of processing is relatively low.
The utility model also can adopt following further technological scheme simultaneously:
Described expansible has the lead angle that screw head rises in its lower end.
Expansible slopes inwardly.
The outside of described sleeve is provided with elasticity packing layer or overlaps flexible packing cover.Can also further increase anti-seismic performance like this.
Description of drawings
Fig. 1 is the utility model embodiment 1 a sectional view.
Fig. 2 is the utility model schematic representation after 1 expansible expansion of embodiment.
Fig. 3 is the utility model embodiment 2 a sectional view.
Fig. 4 is the utility model schematic representation after 2 expansible expansions of embodiment.
Embodiment
Embodiment 1
With reference to accompanying drawing 1,2.The utility model comprises that screw head 1 is the screw rod 2 of taper type and is enclosed within the sleeve 3 in the screw rod outside, lower cartridge is expansible 4 that cooperates with screw head, expansible underpart has outside outstanding 6, and sleeve has screw head rising position-limitting mouth 7 on expansible.
Described expansible has the lead angle 8 that screw head rises in its lower end.
Expansible slopes inwardly.
The outside of described sleeve is provided with elasticity packing layer 5.Certainly also can be at the arranged outside elasticity packing cover of sleeve.
Embodiment 2
With reference to accompanying drawing 3,4.Expansible of present embodiment does not slope inwardly, and all the other are with embodiment 1.
Claims (5)
1, a kind of fastening piece, it is characterized in that it comprises that screw head is the screw rod of taper type and is enclosed within the sleeve in the screw rod outside, lower cartridge is expansible that cooperates with screw head, and expansible underpart has outside outstanding, and sleeve has screw head rising position-limitting mouth on expansible.
2, a kind of fastening piece as claimed in claim 1 is characterized in that described expansible lead angle that has the screw head rising in its lower end.
3, a kind of fastening piece as claimed in claim 1 or 2 is characterized in that expansible slopes inwardly.
4, a kind of fastening piece as claimed in claim 1 or 2 is characterized in that the outside of described sleeve is provided with elasticity packing layer.
5, a kind of fastening piece as claimed in claim 1 or 2 is characterized in that flexible packing cover is overlapped in the outside of described sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233848 CN2494448Y (en) | 2001-07-30 | 2001-07-30 | Fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233848 CN2494448Y (en) | 2001-07-30 | 2001-07-30 | Fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2494448Y true CN2494448Y (en) | 2002-06-05 |
Family
ID=33647546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233848 Expired - Lifetime CN2494448Y (en) | 2001-07-30 | 2001-07-30 | Fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2494448Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606586A (en) * | 2012-03-08 | 2012-07-25 | 刘平原 | Bolt sleeve with cutting structure at front end |
| CN101988539B (en) * | 2009-08-05 | 2013-03-06 | 3M创新有限公司 | Fastening assembly capable of isolating vibration |
| CN106438626A (en) * | 2016-09-01 | 2017-02-22 | 宁波群力紧固件制造有限公司 | Reusable expansion bolt and manufacturing method thereof |
-
2001
- 2001-07-30 CN CN 01233848 patent/CN2494448Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988539B (en) * | 2009-08-05 | 2013-03-06 | 3M创新有限公司 | Fastening assembly capable of isolating vibration |
| CN102606586A (en) * | 2012-03-08 | 2012-07-25 | 刘平原 | Bolt sleeve with cutting structure at front end |
| CN106438626A (en) * | 2016-09-01 | 2017-02-22 | 宁波群力紧固件制造有限公司 | Reusable expansion bolt and manufacturing method thereof |
| CN106438626B (en) * | 2016-09-01 | 2019-03-26 | 宁波群力紧固件制造有限公司 | A kind of reusable expansion bolt and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110730 Granted publication date: 20020605 |