CN202545486U - Novel wedge anchor - Google Patents
Novel wedge anchor Download PDFInfo
- Publication number
- CN202545486U CN202545486U CN2012200632173U CN201220063217U CN202545486U CN 202545486 U CN202545486 U CN 202545486U CN 2012200632173 U CN2012200632173 U CN 2012200632173U CN 201220063217 U CN201220063217 U CN 201220063217U CN 202545486 U CN202545486 U CN 202545486U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- bolt
- rod body
- expansion tube
- washer
- 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 novel wedge anchor, which comprises a bolt, a spring washer, a flat washer, an expansion pipe and a conical nut, wherein the bolt is formed by a screw rod body and a hexagon bolt head arranged on an end part of the screw rod body; the other end part of the screw rod body is a thread connection part; the spring washer, the flat washer and the expansion pipe are sleeved on the screw body; the spring washer and the flat washer are located between the expansion pipe and the hexagon bolt head; the spring washer is located between the hexagon bolt head and the flat washer; the thread connection part stretches towards the outside of the expansion pipe; the conical nut is in thread connection with the thread connection part, and is provided with a conical clamping part; the conical clamping part of the conical nut is clamped between the screw rod body of the bolt and the expansion pipe; and an expansion claw is arranged on an inner side of the expansion pipe, corresponding to the conical clamping part. After the novel wedge anchor is installed, the hexagon bolt head of the bolt is arranged outside a wall body so as to be neater; and when the novel wedge anchor is disassembled, the outward protruded bolt is disassembled, and the conical nut and the expansion pipe are reserved in the wall body, so that the phenomenon that people and objects are scratched is avoided.
Description
Technical field
The utility model relates to a kind of five metals joining work pieces, is specifically related to a kind of pull explosive screw.
Background technique
Pull explosive screw is claimed the expansion of metal screw again, and the equipment that is generally used for is in building fastening on the body.The setscrew of existing technology is made up of screw, expansion tube and nut, and one of screw is provided with outside thread, and the other end of screw is a tapering portion, and expansion tube is iron pipe or steel pipe, is provided with some expansion pawls in the expansion tube.During installation, expansion tube is sheathed on outside the screw, fills in screw and expansion tube together in the hole that body of wall accomplishes fluently; The external thread part of screw stretches out body of wall, with nut screwing clamping on the outside thread of screw, in the process of tightening; Nut pulls outward screw; The tapering portion of screw is drawn in the expansion tube, and expansion tube is anchored on the body of wall by spreading.
Yet; The setscrew of existing technology has following shortcoming: 1. after in a single day above-mentioned setscrew installed, screw was inflated that the expansion pawl of pipe is stuck can't be dismantled in body of wall, can only the part that screw exposes body of wall be cut away; Remaining part is stayed in the body of wall, stays comparatively obvious marks.2. after above-mentioned setscrew installed, the screw terminal that has a segment length stretched out body of wall, and is neither attractive in appearance, is prone to scrape the people again and scrapes thing.
The model utility content
The utility model is in order to overcome the deficiency that existing technology exists, and the novel pull explosive screw that bolt more regular, outside protrusion is easy to dismantle after a kind of the installation is provided.
The utility model is realized through following technological scheme: a kind of novel pull explosive screw; Comprise bolt, spring washer, plain washer, expansion tube and tapered cup nut; Said bolt is made up of screw rod body and the hexagonal spiral shell head that is arranged at an end of this screw rod body; Another end of said screw rod body is a threaded joints, and said spring washer, said plain washer, said expansion tube all are sheathed on said screw rod body, and said spring washer, said plain washer are between said expansion tube and said hexagonal spiral shell head; Said spring washer is between said hexagonal spiral shell head and said plain washer; Said threaded joints stretches out outside expansion tube, and said tapered cup nut is threadedly connected to said threaded joints, and said tapered cup nut has the taper engagement portion; The taper engagement portion of said tapered cup nut is clamped between the screw rod body and said expansion tube of said bolt, and the inboard of said expansion tube is provided with the expansion pawl corresponding to said taper engagement portion.
The taper engagement portion of said tapered cup nut is provided with two anti-skidding boss.
The beneficial effect of the utility model is: bolt of the utility model and tapered cup nut are two parts independently, during installation, at the effect inferior pyramidal nut of the pulling force of bolt expansion tube are expanded, and after installing, the hexagonal spiral shell head of bolt is positioned at outside the body of wall, and is more regular; During dismounting, the taper engagement portion of tapered cup nut can be killed with the expansion pawl of expansion tube, the situation of transfer can not occur; Make bolt be prone to be removed; After outwards the bolt of protrusion was removed, tapered cup nut and expansion tube were stayed in the body of wall, the phenomenon that the people scrapes thing can not occur scraping.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model.
In the drawings: the 1-bolt; The 2-spring washer; The 3-plain washer; The 4-expansion tube; The 5-tapered cup nut.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1, a kind of novel pull explosive screw comprises bolt 1, spring washer 2, plain washer 3, expansion tube 4 and tapered cup nut 5; Bolt 1 is made up of screw rod body and the hexagonal spiral shell head that is arranged at an end of this screw rod body; Another end of screw rod body is a threaded joints, and spring washer 2, plain washer 3, expansion tube 4 all are sheathed on the screw rod body, and spring washer 2, plain washer 3 are between expansion tube 4 and hexagonal spiral shell head; Spring washer 2 is between hexagonal spiral shell head and plain washer 3; Threaded joints stretches out outside expansion tube 4, and tapered cup nut 5 is threadedly connected to threaded joints, and tapered cup nut 5 has the taper engagement portion; The taper engagement portion of tapered cup nut 5 is clamped between the screw rod body and expansion tube 4 of bolt 1, and the inboard of expansion tube 4 is provided with the expansion pawl corresponding to the taper engagement portion.
As preferably, the taper engagement portion of tapered cup nut 5 is provided with two anti-skidding boss.
Should be noted that at last; Above content is only in order to explain the technological scheme of the utility model; But not to the restriction of the utility model protection domain; The simple modification that those of ordinary skill in the art carries out the technological scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technological scheme.
Claims (2)
1. novel pull explosive screw; It is characterized in that: said novel setscrew comprises bolt, spring washer, plain washer, expansion tube and tapered cup nut; Said bolt is made up of screw rod body and the hexagonal spiral shell head that is arranged at an end of this screw rod body; Another end of said screw rod body is a threaded joints, and said spring washer, said plain washer, said expansion tube all are sheathed on said screw rod body, and said spring washer, said plain washer are between said expansion tube and said hexagonal spiral shell head; Said spring washer is between said hexagonal spiral shell head and said plain washer; Said threaded joints stretches out outside expansion tube, and said tapered cup nut is threadedly connected to said threaded joints, and said tapered cup nut has the taper engagement portion; The taper engagement portion of said tapered cup nut is clamped between the screw rod body and said expansion tube of said bolt, and the inboard of said expansion tube is provided with the expansion pawl corresponding to said taper engagement portion.
2. novel pull explosive screw according to claim 1 is characterized in that: the taper engagement portion of said tapered cup nut is provided with two anti-skidding boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632173U CN202545486U (en) | 2012-02-24 | 2012-02-24 | Novel wedge anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632173U CN202545486U (en) | 2012-02-24 | 2012-02-24 | Novel wedge anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545486U true CN202545486U (en) | 2012-11-21 |
Family
ID=47166128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200632173U Expired - Fee Related CN202545486U (en) | 2012-02-24 | 2012-02-24 | Novel wedge anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545486U (en) |
-
2012
- 2012-02-24 CN CN2012200632173U patent/CN202545486U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130224 |