CN220378796U

CN220378796U - Novel anti-impact rooting chain with self-locking hook

Info

Publication number: CN220378796U
Application number: CN202322138173.7U
Authority: CN
Inventors: 张连伍; 郭传清; 张建强; 程传超; 包苏东; 孙伟超; 赵子浩; 胥清贵; 程戈
Original assignee: Yankuang Energy Group Co Ltd
Current assignee: Yankuang Energy Group Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-01-23
Anticipated expiration: 2033-08-09

Abstract

The utility model relates to a novel anti-collision rooting chain with a self-locking hook. In order to fill the blank in the prior art, the novel anti-impact rooting chain with the self-locking hook comprises a circular ring chain, one end of the circular ring chain is welded on an anchor head nut, the other end of the circular ring chain is connected with a hook, one end of the hook is fixedly connected on an internal thread seat, the center of the internal thread seat is provided with a center hole, the center hole consists of an internal thread hole and a taper hole which are sequentially communicated, the large end of the taper hole is connected with the inner end of the internal thread hole, the novel anti-impact rooting chain also comprises a plastic sleeve, a thread pressing pipe and a screw, the inner thread and the outer thread of the thread pressing pipe are respectively arranged on the inner wall and the outer wall of the thread pressing pipe, the spiral directions of the thread pressing pipe and the screw are opposite, the thread pressing pipe is arranged in the internal thread hole of the internal thread pressing pipe in a screwing mode, one end of the plastic sleeve is sleeved on the screw, the other end of the plastic sleeve is provided with a plurality of longitudinal slits, and the inner end of the thread pressing pipe is propped against the root end of the plastic sleeve.

Description

Novel anti-impact rooting chain with self-locking hook

Technical Field

The utility model relates to a novel anti-collision rooting chain with a self-locking hook.

Background

In order to strengthen the management work of preventing and controlling rock burst of a coal mine, prevent rock burst accidents, ensure safe and efficient production of the coal mine, the national coal mine safety supervision bureau issues seventy-nine regulations in coal safety supervision device [2018]8 No. fine rule for preventing and controlling rock burst of the coal mine: for the equipment, pipeline, articles and the like in the dangerous area of rock burst, fixing measures should be taken, the pipeline should be hung below the waist line of the roadway, and the fixing measures must be taken more than 1.2 m.

Aiming at the requirements of rules, various rooting schemes are adopted for production, and the effect is not ideal. In comparison, the fixing effect of the chain is better, but the prior art lacks a special rooting chain.

Disclosure of Invention

The utility model aims to solve the technical problem of filling the blank in the prior art and provides a novel anti-collision rooting chain with a self-locking hook.

In order to solve the technical problem, the novel anti-impact rooting chain with the self-locking hook comprises a circular ring chain and is characterized in that: one end of the ring chain is welded on an anchor head nut, the other end of the ring chain is connected with a hook, the hook is a C-shaped hook, one end of the hook is fixedly connected on an internal thread seat, the center of the internal thread seat is provided with a center hole, the center hole is formed by an internal thread hole and a taper hole which are sequentially communicated, the large end of the taper hole is connected with the inner end of the internal thread hole, the ring chain further comprises a plastic sleeve, a thread pressing pipe and a screw, an external thread matched with the internal thread of the internal thread hole on the internal thread seat is arranged on the outer wall of the thread pressing pipe, the inner wall of the thread pressing pipe is provided with an internal thread matched with the screw, the spiral directions of the internal thread and the external thread on the thread pressing pipe are opposite, the thread pressing pipe is rotatably arranged in the internal thread hole in the center of the internal thread seat, the inner end of the screw is opposite to the other end of the hook, the plastic sleeve is sleeved on the screw, one end of the plastic sleeve is a root end, the other end of the plastic sleeve is a split end, a plurality of longitudinal slits are formed between adjacent longitudinal slits, the thread pressing pipes are tightly clamped by the root end, the inner end of the thread pressing pipe is abutted against the root end of the plastic sleeve, and the diameter of the split end is smaller than the diameter of the taper hole is smaller than the diameter of the thread of the taper hole.

When the anchor head nut is used, the anchor head nut is screwed on an anchor rod or an anchor cable head on a mine roof or a roadway wall, or is directly used for replacing the anchor head or the anchor cable head nut, then the anchor head nut is wound on a pipeline to be fixed by a circular ring chain, and finally the anchor head nut is hooked on a proper chain ring of the circular ring chain by a hook, as shown in figure 1.

Then, screw the screw thread presses the pipe, presses the split end of plastic sheath into the taper hole, then with screw in screw thread presses the pipe, and the screw passes the plastic sheath to extrude from the split end centre of plastic sheath, and the screw inner is supported at the couple other end at last, as shown in fig. 2, and the screw is fixed at the couple, is difficult for taking off. The screw in this device can use repeatedly, after the plastic sheath split end is extruded, still can change. The design is more convenient to maintain than the common self-locking bolt. The novel anti-impact rooting chain with the self-locking hook is not easy to loosen, can be repeatedly used and is convenient to fix.

Preferably, the inner end of each longitudinal slit is communicated with a through hole. Through the design, the stress mutation of the longitudinal slit root can be reduced.

The novel anti-impact rooting chain with the self-locking hook can be repeatedly used, is not easy to loose and rust, and is suitable for fixing underground pipelines.

Drawings

The novel anti-impact rooting chain with the self-locking hook is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic structural view of the use state of a novel anti-collision rooting chain with a self-locking hook;

FIG. 2 is a schematic view of a partial cross-section of a hook, an internal thread seat and a plastic sleeve in the novel anti-impact rooting chain with a self-locking hook;

fig. 3 is a schematic perspective view of a plastic sleeve of the novel anti-impact rooting chain with the self-locking hook.

In the figure: the anchor rod or anchor cable head is characterized in that the anchor rod or anchor cable head comprises a circular ring chain 1, anchor head nuts 2, hooks 3, an internal thread seat 4, an internal thread hole 5, a taper hole 6, a plastic sleeve 7, a root end 71, a split end 72, a threaded pressing pipe 8, screws 9, longitudinal slits 10, through holes 11 and matched anchor rod or anchor cable heads 12.

R1 is the radius of the small end of the taper hole 6; d is the thickness of the plastic sleeve 7; r2 is the crest radius of the external thread of the screw 9.

Detailed Description

Embodiment one: as shown in fig. 1-3, the novel anti-impact rooting chain with the self-locking hook comprises a circular ring chain 1, and is characterized in that: one end of the circular ring chain 1 is welded on an anchor head nut 2, the other end of the circular ring chain 1 is connected with a hook 3, the hook 3 is a C-shaped hook, one end of the hook 3 is fixedly connected on an internal thread seat 4, the center of the internal thread seat 4 is provided with a center hole, the center hole is composed of an internal thread hole 5 and a taper hole 6 which are sequentially communicated, the large end of the taper hole 6 is connected with the inner end of the internal thread hole 5, the circular ring chain further comprises a plastic sleeve 7, a thread pressing pipe 8 and a screw 9, an external thread matched with the internal thread of the internal thread hole 5 on the internal thread seat 4 is arranged on the outer wall of the thread pressing pipe 8, the inner wall of the thread pressing pipe is provided with an internal thread matched with the screw 9, the internal thread on the thread pressing pipe 8 is in opposite to the external thread in screw direction, the thread pressing pipe 8 is rotationally arranged in the internal thread hole 5 in the center of the internal thread seat 4, the screw 9 is rotationally arranged in the thread pressing pipe 8, and the inner end of the screw 9 is opposite to the other end of the hook 3.

The plastic sleeve 7 is sleeved on the screw 9, one end of the plastic sleeve 7 is a root end 71, the other end of the plastic sleeve 7 is a split end 72, the split end 72 is provided with a plurality of longitudinal slits 10, and clamping petals are formed between the adjacent longitudinal slits 10, as shown in fig. 3.

The inner end of the threaded pressure pipe 8 is propped against the root end 71 of the plastic sleeve 7, the split end 72 can be pushed into the taper hole 6, and the difference between the small end radius R1 of the taper hole 6 and the thickness D of the plastic sleeve 7 is less than the crest radius R2 of the external thread of the screw 9 and is less than or equal to the small end radius R2 of the taper hole 6. The inner end of each longitudinal slit 10 communicates with a through hole 11.

Claims

1. The utility model provides a take from novel scour protection of latch hook root chain, includes ring chain, its characterized in that: one end of the ring chain is welded on an anchor head nut, the other end of the ring chain is connected with a hook, the hook is a C-shaped hook, one end of the hook is fixedly connected on an internal thread seat, the center of the internal thread seat is provided with a center hole, the center hole is formed by an internal thread hole and a taper hole which are sequentially communicated, the large end of the taper hole is connected with the inner end of the internal thread hole, the ring chain further comprises a plastic sleeve, a thread pressing pipe and a screw, an external thread matched with the internal thread of the internal thread hole on the internal thread seat is arranged on the outer wall of the thread pressing pipe, the inner wall of the thread pressing pipe is provided with an internal thread matched with the screw, the spiral directions of the internal thread and the external thread on the thread pressing pipe are opposite, the thread pressing pipe is rotatably arranged in the internal thread hole in the center of the internal thread seat, the inner end of the screw is opposite to the other end of the hook, the plastic sleeve is sleeved on the screw, one end of the plastic sleeve is a root end, the other end of the plastic sleeve is a split end, a plurality of longitudinal slits are formed between adjacent longitudinal slits, the thread pressing pipes are tightly clamped by the root end, the inner end of the thread pressing pipe is abutted against the root end of the plastic sleeve, and the diameter of the split end is smaller than the diameter of the taper hole is smaller than the diameter of the thread of the taper hole.

2. The novel anti-collision rooting chain with self-locking hook according to claim 1, wherein the anti-collision rooting chain is characterized in that: the inner end of each longitudinal slit is communicated with a through hole.