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Expansion assembly

A technology of assembly and expansion sleeves, which is applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of wasting raw materials, increasing production costs, deformation of expansion sleeves, etc., and achieves the effect of convenient replacement and increased production costs

Inactive Publication Date: 2010-02-24
兴化华康不锈钢制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the expansion sleeve and the screw rod are connected structures, it is found that the waste product cannot be replaced, such as the screw thread of the screw rod 1 is deformed, and the nut cannot be rotated to expand the expansion sleeve 4, and the expansion sleeve 4 and the screw rod 1 must be scrapped at the same time, which wastes raw materials and increases the cost. Production cost, and when the rivet is tightened by turning the nut, it is easy to deform the expansion sleeve and make the expansion sleeve invalid

Method used

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] An expansion assembly, which includes a screw 1 with an inverted cone 2 at one end and a threaded segment 3 at the other end, a loop that is looped on the screw 1 and has a notch for its deformation and expansion Expansion sleeve 4, a nut 5 that is installed on the threaded section 3 of the screw rod 1 and can expand the expansion sleeve 4 during its rotation, and a washer 6 between the expansion sleeve 4 and the nut 5, which also includes an elastic ring 7 , the elastic ring 7 is looped on the screw rod 1 and is in contact with the inner wall of the expansion sleeve 4, and the elastic ring 7 is a rubber ring.

[0013] Of course, under the inventive concept of the present invention, the present invention has various implementation forms, which are all within the protection scope of the present invention for those skilled in the art who can reprod...

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PUM

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Abstract

The invention discloses an expansion assembly, which comprises a screw, an expansion sleeve, a nut, a washer and an elastic ring, wherein one end of the screw is provided with an inverted cone, whilethe other end is provided with a thread section; the expansion sleeve is movably sleeved on the screw and is provided with a notch for the deformation and expansion of the expansion sleeve; the nut isarranged on the thread section of the screw and can expand the expansion sleeve when the nut rotates; the washer is positioned between the expansion sleeve and the nut; and the elastic ring is movably sleeved on the screw and contacts the inner wall of the expansion sleeve. The expansion assembly is convenient to operate and replace under special conditions, and does not increase production cost.

Description

technical field [0001] The invention relates to an expansion assembly, in particular to an expansion assembly for hanging or fixing objects on a wall, such as an indoor unit and an outdoor unit of an air conditioner. Background technique [0002] Existing expansion assemblies are available from figure 1 and figure 2 As can be seen in the figure, it includes a screw 1 with an inverted cone 2 at one end and a threaded segment 3 at the other end, an expansion sleeve 4 looped on the screw with a notch for its deformation and expansion , a nut 5 mounted on the threaded section 3 of the screw rod that can expand the expansion sleeve on the inverted cone during its rotation, and a washer 6 between the expansion sleeve and the nut. When in use, first drill a long hole on the wall that matches the diameter and length of the expansion sleeve, then put the expansion screw into the long hole, and then turn the nut 3 on it; the rotation of the nut pushes the expansion immediately The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/06
Inventor 康渊锡康豪山
Owner 兴化华康不锈钢制品有限公司
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