Small pillar used in coal mine

A small, coal mine technology, applied in the direction of pillars/brackets, mining equipment, earthwork drilling, etc., can solve the problems of easy safety accidents, difficult movement, and weak stability of supporting mines, so as to achieve convenient and fast movement and prevent safety Accidents, stability enhancement effects

Inactive Publication Date: 2019-01-11
郑光茂
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is formed by luxuriant plants growing in a certain geological age. In a suitable geological environment, it gradually accumulates into a thick layer and is buried in the bottom of the water or in the sand. It is formed after a long geological age of natural coalification. Collapse may occur during the process. Generally, coal mines are equipped with large lifting frames to ensure

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
  • Small pillar used in coal mine
  • Small pillar used in coal mine
  • Small pillar used in coal mine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention .

[0015] See Figure 1-3 , The present invention provides a solution: a small pillar for coal mines, including a sleeve 1, the bottom end of the sleeve 1 is fixedly connected with a bottom plate 9, the upper surface of the bottom plate 9 is inserted on the left and right sides of the first bolt 3, the first bolt 3 Through the bottom p...

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

No PUM Login to view more

Abstract

The invention discloses a small pillar used in coal mine. The small pillar comprises a sleeve. The bottom end of the sleeve is fixedly connected to a bottom plate. First bolts are inserted into the left and right sides of the upper surface of the bottom plate. The first bolts pass through the bottom plate. The bottom plate and the first bolts are connected in a screw thread mode. The bottom ends of the first bolts are provided with pedestals. The pedestals are rotatably connected to the first bolts through a bearing. The left and right sides of the lower surface of the bottom plate are fixedlyconnected to vertical plates. By using the small pillar used in the coal mine, through cooperation among the sleeve, a sleeve rod, a groove, the bottom plate and a second bolt, the small pillar usedin the coal mine can be placed in a small space so as to support the top end of a pit. A traditional crabstick can be replaced, the stability of pit support can be enhanced, and when moving is needed,a clamping condition and a condition that moving is difficult are not generated so that the safety of a miner working in the small space is guaranteed and safety accidents are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of small props for coal mines, in particular to a small props for coal mines. Background technique [0002] A coal mine is a reasonable space excavated by human beings when digging geological layers rich in coal, usually including roadways, shafts and mining faces, etc. Coal is the most important solid fuel and a kind of combustible organic rock. It is formed by luxuriant plants growing in a certain geological age. In a suitable geological environment, it gradually accumulates into thick layers and is buried in the bottom of the water or in the sand. It is formed after a long geological age of natural coalification. Collapse may occur during the process. Generally, coal mines are equipped with large lifting frames to ensure the stability of the coal mine, but there are also absenteeism in some corners or small spaces, and large lifting frames cannot enter smaller ones. The top of the mine cannot be supporte...

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
IPC IPC(8): E21D15/00E21D15/50E21D15/54
CPCE21D15/00E21D15/50E21D15/54
Inventor 郑光茂
Owner 郑光茂
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