Expansion bolt capable of injecting glue into bolt and using method of expansion bolt

An expansion bolt and glue injection technology, applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of loosening and insufficient strength, and achieve the effect of increasing strength, increasing load-bearing capacity, and increasing tensile strength.

Inactive Publication Date: 2021-09-21
CHONGQING PUBLIC TRANSPORTATION CAREER ACADEMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the expansion bolts are fixed on the soft foam brick wall, the expansion bolts will be more likely to loosen due to the insufficient strength of the wall.

Method used

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  • Expansion bolt capable of injecting glue into bolt and using method of expansion bolt
  • Expansion bolt capable of injecting glue into bolt and using method of expansion bolt
  • Expansion bolt capable of injecting glue into bolt and using method of expansion bolt

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Experimental program
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Effect test

Embodiment Construction

[0022] Below, the present invention will be further described in conjunction with accompanying drawing and embodiment: Figure 1 to Figure 5 As shown, an expansion bolt that can inject glue into the bolt includes an expansion nail 10, a sleeve 20, a limit seat 30, a U-shaped ring 40, and a sealing ring 50; There is a nail cap 11, a cross groove 12 is arranged in the middle of the nail cap 11, and a glue injection inlet 13 is arranged at the bottom of the cross groove 12; Both the upper outlet 15 and the lower outlet 16 communicate with the channel 14 in the middle of the expansion nail 10; the lower end of the expansion nail 10 is provided with a threaded head 17; the hardness of the expansion nail 10 is greater than that of the sleeve 20; the middle of the sleeve 20 is provided with Inner cavity 21, at least two slots 22 are arranged at the lower end of the sleeve 20, and the lower part of the sleeve 20 is divided into several barb strips 24, the middle of the inner surface o...

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PUM

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Abstract

The invention provides an expansion bolt capable of injecting glue into the bolt. The expansion bolt comprises an expansion nail, a sleeve, a limiting seat, a U-shaped ring and a sealing ring; the expansion bolt is characterized in that a nail cap is arranged above the expansion nail, a cross-shaped groove is formed in the middle of the nail cap, and a glue injection inlet is formed in the bottom of the cross-shaped groove; the glue injection inlet communicates with a channel in the middle of the expansion nail, and an upper outlet and a lower outlet which are formed in the middle of the expansion nail and below the expansion nail communicate with the channel in the middle of the expansion nail; a thread head is arranged at the lower end of the expansion nail, and the hardness of the expansion nail is greater than that of the sleeve; an inner cavity is formed in the middle of the sleeve, and at least two open grooves are formed in the lower end of the sleeve; and when the thread head on the lower portion of the expansion nail forcibly extrudes a protruding block, a barb strip is forced to turn outwards. According to the expansion bolt, glue can be injected into a wall from the middle of the expansion nail, the hardness of the soft wall can be improved, the overall pulling resistance of the expansion nail is improved, and the expansion bolt is particularly suitable for being installed and used on the soft wall.

Description

technical field [0001] The invention relates to the field of architectural decoration, in particular to an expansion bolt capable of injecting glue into the bolt. Background technique [0002] Expansion bolts are made of plastic, metal, or a mixture of plastic and metal. In architectural decoration engineering, metal expansion bolts are mainly used. [0003] Expansion bolts use wedge-shaped inclination to promote expansion to generate friction and grip force to achieve a fixed effect. One end of the screw is threaded, the other end has a taper, and the outside is wrapped with an iron sheet or an iron sheet cylinder (steel pipe). There are several cuts in half, and they are inserted into the hole made on the wall together, and then the nut is locked. The taper is pulled into the iron cylinder, the iron cylinder is expanded, and the expansion bolts are tightly fixed on the wall. Expansion bolts are generally used for fastening fences, awnings, air conditioners, etc. on ceme...

Claims

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Application Information

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IPC IPC(8): F16B13/06
CPCF16B13/063
Inventor 欧阳刚许余燕苏涛李亚萍欧阳婧芸张小龙陈冬朋宇姚雪儒
Owner CHONGQING PUBLIC TRANSPORTATION CAREER ACADEMY
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