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A slider type expansion bolt

An expansion bolt and slider type technology, which is applied in the direction of bolts, nuts, threaded fasteners, etc., can solve problems such as looseness, inability to be firmly fixed, and small expansion of the outer sleeve.

Active Publication Date: 2021-12-31
金华市荣创五金工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But its fixation is not very reliable. If the load has a large vibration, it may loosen. Therefore, it is not recommended to install ceiling fans, etc. The expansion bolts of the existing structure are used in materials with low hardness such as hollow bricks, wood, and cardboard. , rubber, etc., the expansion degree of the outer casing is small when it is used, and it is often not firmly fixed. Therefore, an expansion bolt with a large bite depth and firm fixation is required.

Method used

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  • A slider type expansion bolt
  • A slider type expansion bolt
  • A slider type expansion bolt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see figure 1 It is a slider type expansion bolt in one embodiment, comprising:

[0039] The bolt body 1 is a screw rod;

[0040] The outer casing 2 is arranged outside the bolt body 1; specifically, round holes are provided on the upper and lower end surfaces of the outer casing 2, and the bolt body 1 is slidably installed in the round holes on the upper and lower end surfaces of the outer casing 2;

[0041] A nut 4 is matched with the bolt body 1; a washer 5 and a spring pad are also arranged between the nut 4 and the outer sleeve 2,

[0042] Wherein, the outer casing 2 is provided with a sliding hole 22, and a slider 3 is installed in the sliding hole 22. When the nut 4 drives the bolt body 1 to move, the bolt body 1 can push the slider. The block 3 slides outward to lock, and the nut 4 drives the bolt body 1 to rotate outward, and the front part of the bolt body 1 pushes the slider 3 to slide outward so that the slider is inserted into the wall. 3. The depth of sl...

Embodiment 2

[0055]The difference between the present embodiment and Embodiment 1 is that the two sides of the slider 3 are provided with sliding posts 33, and the two sides of the sliding hole 22 are provided with chute 23, and the sliding posts 33 are slidably installed in the chute 23. Sliding posts 33 are arranged on both sides of the sliding block 3 , and the sliding posts 33 are slidably installed in the sliding groove 23 to prevent the sliding block 3 from sliding out of the sliding hole 22 when not in use.

[0056] The present invention also comprises following advantage at least:

[0057] The front part of the bolt body 1 pushes the slider 3 to slide outwards so that the slider can be inserted into the wall. Since the slider 3 of this device slides outwards and is inserted into the wall deeper, it can be used for materials with lower hardness such as: When used on hollow bricks, wood, cardboard, rubber, etc., it can also produce a deep bite, and can be firmly fixed. Three sliding ...

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Abstract

The present invention provides a slider-type expansion bolt, comprising: a bolt body, an outer casing, and a nut; the outer casing is arranged outside the bolt body; the nut cooperates with the bolt body; A washer and a spring pad are provided, wherein the outer sleeve is provided with a sliding hole, and a slider is installed in the sliding hole, and when the nut drives the bolt body to move, the bolt body can push the slider The block slides outward to lock. The present invention drives the bolt body to rotate outward through the nut, and the front part of the bolt body pushes the slider to slide outward so that the slider can be inserted into the wall. Since the slider of the device slides outward and is inserted into the wall, the depth is relatively deep. , When used on materials with low hardness such as: hollow bricks, wood, cardboard, rubber, etc., it can also produce deeper bites and can be firmly fixed.

Description

technical field [0001] The invention relates to the technical field of bolts and fasteners, in particular to a slider type expansion bolt. Background technique [0002] Expansion bolt is a special threaded connection used to fix pipeline supports / hangers / brackets or equipment on walls, floors, and columns. Degree to promote expansion to produce friction grip force, to achieve a fixed effect. One end of the screw is threaded and the other end has a degree of taper. There is a steel sheet on the outside, and there are several cuts in the half of the iron sheet cylinder. Put them together into the hole made on the wall, and then lock the nut. The nut pulls the screw outward, and pulls the vertebra into the steel sheet cylinder. The steel sheet circle The tube is expanded, so it is tightly fixed on the wall, and is generally used for fastening the fence, awning, air conditioner, etc. on cement, brick and other materials. [0003] But its fixation is not very reliable. If the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B13/10F16B33/00
CPCF16B13/04F16B33/008F16B13/10
Inventor 夏俊文
Owner 金华市荣创五金工具有限公司
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