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Anchor bolt

A technology of anchor bolts and bolt heads, which is applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of troublesome processing and production, many components, complex structure, etc., and achieve the effect of simple processing and production, easy processing and manufacturing, and simplified structure

Active Publication Date: 2010-04-14
FUJIAN PENGKUN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, this kind of anchor bolt needs to be nested with multiple expansion pieces 30, and each expansion piece 30 must form an expansion piece 310 and a wedge-shaped surface 320, and the nut 10 or screw rod 20 must also form a wedge-shaped surface corresponding to the expansion piece 310, so, There are many components, complex structure, troublesome processing and production, etc.

Method used

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Examples

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Embodiment Construction

[0047] like image 3 and Figure 4 Shown is a preferred embodiment of the present invention, which consists of a nut 1, a screw 2 and an expansion member 3.

[0048] The screw 2 has a threaded section 21 at its outer end and a screw head 22 at its inner end. The bolt head 22 can be integrally formed on the screw rod 2 , or can be formed separately from the screw rod 2 and then fixed on the screw rod 2 .

[0049] The expansion part 3 is in the shape of a tube, and there are several rows of expansion holes 31 that guide the expansion part 3 to expand and deform in the radial direction of the tube wall. In this embodiment, the expansion holes 31 are axially long holes. Expansion sheets 32 are formed between adjacent expansion holes 31 in each row. In order to facilitate deformation of the expansion sheets 32 , small holes 33 are formed on the expansion sheets 32 , and flaring openings 36 are formed at both ends of the expansion holes 31 . The expansion member 3 is sheathed on ...

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PUM

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Abstract

The invention discloses an anchor bolt which comprises a nut, a screw rod and an expansion part. A threaded section is arranged at the outer end of the screw rod, and a bolt head is arranged at the inner end of the screw rod; the expansion part is in a tubular shape, a plurality of expansion holes which guide the expansion part to generate expansion and deformation are radially arranged on the tube wall, an expansion slice is formed between every two adjacent expansion holes at the each row, the expansion part is sleeved on the screw rod, and the inner end of the expansion part supports against the bolt head; and the nut is screwed on the threaded section and supports against the outer end of the expansion part. The anchor bolt has the advantages of favorable anchoring efficacy, little component, simple structure as well as simple and convenient processing and manufacture.

Description

technical field [0001] The invention belongs to the technical field of building anchor bolts, in particular to a building anchor bolt. Background technique [0002] Traditional building anchor bolts such as figure 1 As shown, it consists of a nut 100, a screw 200 and an expansion piece 300. The inner end of the screw 200 has a wedge-shaped head 201. The expansion piece 300 is tubular and has an expansion piece 301 at the inner end. The expansion piece 300 is sleeved on the screw 200. The expansion piece 301 abuts against the wedge-shaped head 201 , and the nut 100 is threaded on the outer end of the screw rod 200 . [0003] During installation, insert the screw rod 200 covered with the expansion member 300 into the drilled wall hole, then hang the external objects on the outer end of the screw rod 200, then, screw the nut 100 on the screw rod 200, and screw the nut 100 Push the expansion piece 300 into the wall hole, so that the inner expansion piece 301 of the expansion p...

Claims

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Application Information

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IPC IPC(8): F16B13/06
Inventor 瞿滨
Owner FUJIAN PENGKUN IND CO LTD
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