CN2674175Y - Upside-down and pull type screw bolt - Google Patents
Upside-down and pull type screw bolt Download PDFInfo
- Publication number
- CN2674175Y CN2674175Y CN 200420015349 CN200420015349U CN2674175Y CN 2674175 Y CN2674175 Y CN 2674175Y CN 200420015349 CN200420015349 CN 200420015349 CN 200420015349 U CN200420015349 U CN 200420015349U CN 2674175 Y CN2674175 Y CN 2674175Y
- Authority
- CN
- China
- Prior art keywords
- upside
- pull type
- type screw
- screw bolt
- utility
- 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 discloses a fixing device, in particular to an upside-down and pull type screw bolt used for decoration and installation. The technical problems that the installation of the fixing device is sightly, the disassembly and levelling is convenient and the cost is low can be solved. The utility model is composed of screw bolts, cone head nuts and a crevasse sleeve. One end of the cone head nut is a pyramidal section, and the other end is columnar section. The crevasse sleeve is sheathed between the cone head nuts and the screw bolts and the crevasse end of the crevasse sleeve faces the cone head nuts. Compared with the prior art, the utility model can be rapidly put into the inner wall or the holes of other articles and be fixed tightly to fasten the articles, having the advantages of reasonable composite structure, material saving, and convenient and beautiful disassembly and assembly.
Description
Technical field
The utility model relates to a kind of securing means, particularly a kind of finishing and installation accessory.
Background technique
Existing pull type screw bolt is made up of conical head bolt, cut cover and nut.When this pull type screw bolt was used for article are installed, helical thread portion had stretched out porthole outside, when screw nut fastening after, the helical thread portion of bolt often is drawn out the outside of nut, and particularly for the thin body of wall of wall thickness, its outstanding part is longer, so neither attractive in appearance, waste material again; And when removing, bolt can't be put in order and eradicate out, as transfering to by force, then the part of body of wall is also pulled out, and has damaged body of wall, otherwise need cut the part of giving prominence to outside wall with cutting tool, give finishing or install and make troubles, the sudden and violent bolt in original top will lean on mechanical processing technique to be shaped technology cost height.
Summary of the invention
The purpose of this utility model be to provide a kind of installation beautiful, remove smooth convenience, and the upside-down pull type screw bolt of low cost of manufacture.
The utility model is by the following technical solutions: the upside-down pull type screw bolt includes bolt and cut cover, described upside-down pull type screw bolt also includes the conehead nut, one end of conehead nut is the taper section, the other end is the column section, the cut cover be placed between the conehead nuts and bolt and its cut end towards the conehead nut; There is the anti-skidding muscle with parallel axes on described conehead nut column part surface.
Cut cover outer surface annular knurl of the present utility model, internal surface is the cylndrical surface.
Cut cover internal surface of the present utility model ingress is the conical surface.
Cut cover of the present utility model is made up of sleeve two-part of cylinder sleeve and fluting.
The utility model compared with prior art, can put into apace within the walls or the hole of other article in and fixing tight, be used for fastening article, composite structure is reasonable, saves material, dismounting is easy to operate, attractive in appearance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment upside-down pull type screw bolt.
Fig. 2 is the utility model embodiment upside-down pull type screw bolt mounting structure schematic representation.
Among the figure: conehead nut 1 cut overlaps 2 bolts, 3 bodies of wall, 4 anti-skidding muscle 5 holes 6
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As shown in Figure 1, the upside-down pull type screw bolt is made up of conehead nut 1, cut cover 2 and bolt 3, wherein conehead nut 1 has the anti-skidding muscle 5 with parallel axes on the column part surface, the cut cover is made up of two-part, a part is the cylinder sleeve, and another part is the sleeve of fluting, cut cover outer surface annular knurl, internal surface is that the ingress is the conical surface, and internal surface has the internal thread suitable with bolt 3.
As shown in Figure 2, in actual use, earlier conehead nut 1 and cut cover 2 are inserted in the hole 6, now bolt being passed cut cover 2 inserts in the conehead nut 1 again, because conehead nut 1 outer surface has anti-skidding muscle 5, so during swivel bolt 3, conehead nut 1 relative hole is static, bolt 3 is in the screw-in process, the compressing cut overlaps 2 internal surface ingress to 1 motion of conehead nut, and surperficial inlet arrives the tapering of conehead nut 1 earlier, makes cut cover 2 be out of shape distendings, compress hole 6, reach the purpose of locking pull type screw bolt.If desired bolt 3 is taken out, only need its back-out is got final product, conehead nut 1 and cut cover 2 exist in the hole 6 of body of wall 4, do not destroy the outward appearance of body of wall, do not damage body of wall again.Tapered cup nut can cold-forging forming, and the efficient of shaping exceeds tens times than the sudden and violent bolt in top.
Claims (4)
1. upside-down pull type screw bolt, include bolt and cut cover, it is characterized in that: described upside-down pull type screw bolt also includes the conehead nut, and an end of conehead nut is the taper section, the other end is the column section, the cut cover be placed between the conehead nuts and bolt and its cut end towards the conehead nut; There is the anti-skidding muscle with parallel axes on described conehead nut column part surface.
2. upside-down pull type screw bolt according to claim 1 is characterized in that: described cut cover outer surface annular knurl, internal surface is the cylndrical surface.
3. upside-down pull type screw bolt according to claim 2 is characterized in that: described cut cover internal surface ingress is the conical surface.
4. upside-down pull type screw bolt according to claim 1 is characterized in that: described cut cover is made up of sleeve two-part of cylinder sleeve and fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015349 CN2674175Y (en) | 2004-02-05 | 2004-02-05 | Upside-down and pull type screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015349 CN2674175Y (en) | 2004-02-05 | 2004-02-05 | Upside-down and pull type screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674175Y true CN2674175Y (en) | 2005-01-26 |
Family
ID=34482855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015349 Expired - Fee Related CN2674175Y (en) | 2004-02-05 | 2004-02-05 | Upside-down and pull type screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674175Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660558B (en) * | 2009-09-24 | 2012-05-09 | 张磊 | Opening biconical nut expansion bolt and manufacturing device thereof |
| WO2012159528A1 (en) * | 2011-05-25 | 2012-11-29 | Wen Shaosong | Blasting roof and suspender screw and using method therefor |
| CN104454864A (en) * | 2014-11-29 | 2015-03-25 | 黄传勇 | Hedging type expansion bolt |
| CN105156428A (en) * | 2015-09-09 | 2015-12-16 | 黄传勇 | Expansion bolt |
-
2004
- 2004-02-05 CN CN 200420015349 patent/CN2674175Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660558B (en) * | 2009-09-24 | 2012-05-09 | 张磊 | Opening biconical nut expansion bolt and manufacturing device thereof |
| WO2012159528A1 (en) * | 2011-05-25 | 2012-11-29 | Wen Shaosong | Blasting roof and suspender screw and using method therefor |
| CN104454864A (en) * | 2014-11-29 | 2015-03-25 | 黄传勇 | Hedging type expansion bolt |
| CN105156428A (en) * | 2015-09-09 | 2015-12-16 | 黄传勇 | Expansion bolt |
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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 |