Anti-dropping expansion screw with easily-detachable nut

An expansion screw, easy-to-remove technology, applied in the directions of pins, connecting components, mechanical equipment, etc., can solve the problems that the nut cannot be disassembled, the screw falls and hurts people, etc., and achieves the effect of easy disassembly, simple operation, and not easy to fall and hurt people.

Active Publication Date: 2015-09-16
深圳市宝科特精密科技有限公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is dedicated to solving the defects in the prior art that the nut cannot be disassembled after the nut and the screw are rotated at the same time, and the remaining screw will fall and hurt people after disassembly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-dropping expansion screw with easily-detachable nut
  • Anti-dropping expansion screw with easily-detachable nut
  • Anti-dropping expansion screw with easily-detachable nut

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1

[0014] 1. In (attached figure 1 ), (attached figure 2 ) In the illustrated embodiment 1, it includes a screw, an expansion sleeve, a nut and a washer. One end of the screw 1 is provided with a thread, the other end is provided with a positioning shaft 1.5, and the positioning shaft 1.5 is provided with a through positioning hole in the axial middle. 1.2. There is a positioning pin 5 in the positioning hole 1.2. The outer circle of the positioning pin 5 is provided with a trapezoidal groove 5.2 with a large outer diameter and a small inner circle. The trapezoidal groove 5.2 is provided with a pre-break shaft 5.3. The longitudinal center of the screw 1 is provided with a positioning hole 1.2 Extrusion rod holes 1.3 passing through each other perpendicularly, the extrusion rod hole 1.3 is located at the threaded end of the screw 1 with a screw hole 1.4, the extrusion rod hole 1.3 is provided with an extrusion rod 6, and one end of the extrusion rod 6 is provided with

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses an anti-dropping expansion screw with an easily-detachable nut and is aimed at providing the anti-dropping expansion screw with the easily-detachable nut. The nut is easily detached and does not easily drop down and is safe and is easily operated. The anti-dropping expansion screw comprises a screw rod, an expansion screw, a nut and a gasket. One end of the screw rod is provided with a screw thread and the other end of the screw rod is provided with a positioning shaft. The center of the positioning shaft in an axial direction is provided with a communicating positioning hole, in which a positioning pin is adapted. The middle of an excircle of the positioning pin is provided with a trapezoid-shaped slot with a large outer portion and a small portion. The middle of the trapezoid-shaped slot is provided with a pre-breaking shaft. The center of the screw rod is provided with an extrusion rod hole, in which an extrusion rod is arranged. The two-end length of the positioning pin is the same as the diameter of the excircle of the positioning shaft. When the extrusion rod downwardly extrudes the positioning pin, the pre-breaking shaft of the positioning pin is enabled to be break and separate. The end portion of the positioning pin enters the hole wall of an expansion screw hole. The screw rod is firmly fixed into the expansion screw hole such that the nut is easily detached. The expansion screw left on a wall does not hurt people and is easily operated.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner 深圳市宝科特精密科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap