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Three-eccentric combined bolt and construction process thereof

A construction technology and eccentric technology, applied in the direction of connecting members, pins, mechanical equipment, etc., can solve the problem of no eccentric setting, etc., and achieve the effect of convenient and detachable installation, low cost and strong force

Inactive Publication Date: 2015-06-03
锦楠建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing back bolt is mainly composed of a big-head screw and an expansion tube. The big-head screw and the expansion tube are on the same centerline, and there is no eccentric setting

Method used

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  • Three-eccentric combined bolt and construction process thereof
  • Three-eccentric combined bolt and construction process thereof
  • Three-eccentric combined bolt and construction process thereof

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Embodiment Construction

[0019] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0020] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, the three-eccentric combination bolt of the present invention includes an eccentric head bolt 1 and an eccentric sleeve 2, the eccentric head bolt 1 includes a screw rod, a polished rod and an eccentric head, and there is a section of polished rod between the bolt and the eccentric head, and its structural characteristics In order to be provided on the polished rod with the same or almost the same direction as the center line of the screw rod 3, the inner side of the eccentric sleeve 2 is provided with a concave groove that can be inserted into the orientation protrusion 3 that matches the shape and size of the orientation protrusion 3. Groove 4, the eccentric pipe sleeve 2 is inserted into the screw rod of the eccentric head bolt 1 and after entering the polished rod, its gro...

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Abstract

The invention discloses a three-eccentric combined bolt and a construction process thereof. The three-eccentric combined bolt comprises an eccentric head bolt and an eccentric pipe sleeve, wherein the eccentric head bolt comprises a screw rod, a polished rod and an eccentric head; and the polished rod is arranged between the eccentric head bolt and the eccentric head. The three-eccentric combined bolt is characterized in that the polished rod is provided with a directional convex strip in the same or almost same direction of the center line of the screw rod; the inner side of the eccentric pipe sleeve is provided with a groove which is matched with the directional convex strip in shape and size and sleeved with the directional convex strip; and after the eccentric pipe sleeve is sleeved with the screw rod of the eccentric head bolt to enter the polished rod, the groove of the eccentric pipe sleeve can be sleeved on the directional convex strip. After the head of the eccentric bolt enters an eccentric groove positioned at a hole bottom, the head of the eccentric bolt can not withdraw from the eccentric groove positioned at the hole bottom by being sleeved with the eccentric pipe sleeve, therefore the purpose that the screw rod of the eccentric head bolt can not be pulled out is achieved; and the screw rod can fix various handing pieces and fixing pieces after being provided with a flat gasket, a spring gasket and a screw cap which are standard parts. The execution method is simple and can enhance the engineering quality.

Description

technical field [0001] The invention relates to the field of fasteners, in particular to a three-bias combination bolt and its construction technology. Background technique [0002] Existing back bolt is mainly made up of big head screw rod and expansion pipe, and its big head screw rod and expansion pipe are on the same center line, and there is no eccentric arrangement. Contents of the invention [0003] The object of the present invention is to provide a three-bias combination bolt with simple structure, easy disassembly and assembly, and strong force and its construction technology. [0004] The object of the present invention is achieved in that the described three-eccentric combination bolt includes an eccentric head bolt and an eccentric sleeve, and the eccentric head bolt includes a screw rod, a polished rod and an eccentric head, and there is a section of polished rod between the bolt and the eccentric head. That is: on the polished rod, there is an orienting con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B13/04
Inventor 周述文
Owner 锦楠建设集团有限公司
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