Roof-cutting pressure-relief coal-pillar-free self-forming roadway waste rock blocking U-shaped steel connecting structure

By introducing components such as limiting holes, positioning rods, and springs into the U-shaped steel connection structure, the problem of unstable connection between the U-shaped steel and the cable clamp was solved, achieving a stable connection between the cable clamp and the U-shaped steel, simplifying the operation process and improving the stability of the connection.

CN223881487UActive Publication Date: 2026-02-06SHANXI PUXIAN HONGYUAN GRP FUJIAAO COAL IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423016427.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-02-06
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

The existing connection between U-shaped steel and cable clamps requires multiple people to operate, which is prone to misalignment due to hand tremors, affecting the stability of the connection.

Method used

A connection structure comprising a U-shaped steel body, a connecting block, and a cable clamp is designed. Through control components such as limiting holes, positioning rods, moving plates, and springs, a stable connection between the cable clamp and the U-shaped steel is achieved, avoiding vibration and displacement.

Benefits of technology

It improves the stability of the connection between the cable and the U-shaped steel, avoids misalignment caused by shaking, simplifies the operation process, and reduces manpower requirements.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223881487U_ABST
    Figure CN223881487U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of roof-cutting pressure-relief coal-pillar-free self-roadway-forming waste rock blocking, and discloses a roof-cutting pressure-relief coal-pillar-free self-roadway-forming waste rock blocking U-shaped steel connecting structure which comprises a U-shaped steel body and a clamping cable and is provided with a control assembly, a long opening of a limiting hole and a transverse pushing moving rod. The movable rod abuts against the surface of the vertical rod, so that a movable plate fixed to the surface of the vertical rod is stressed and transversely moves on the surface of the supporting rod under supporting of a first spring, when the movable plate moves, a positioning rod fixed to the surface of the movable plate is clamped into a clamping hole formed in the surface of the clamping cable, the positioning rod is attached to the top of the clamping cable, and after attachment, the movable plate is fixed to the top of the vertical rod. When the clamping cable is connected with the U-shaped steel body, the movable rod is longitudinally pushed in the vertical rod, the movable rod can be clamped into the corner of the limiting hole, preliminary positioning of the clamping cable is completed, and therefore the stability of the clamping cable in the connecting process of the clamping cable and the U-shaped steel body is guaranteed, and the situation of deviation and dislocation caused by shaking is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to a top cutting pressure relief no coal pillar self forming roadway gangue blocking technology field, concretely is a top cutting pressure relief no coal pillar self forming roadway gangue U type steel connecting structure. BACKGROUND

[0002] The top cutting pressure relief no coal pillar self forming roadway mining method is a kind of advanced no coal pillar mining method widely used in thin and medium thick coal seam at present.The core technology of this method includes constant resistance anchor cable supporting technology, roof directional blasting technology and gangue blocking supporting technology.At present, the gangue blocking supporting technology in the top cutting pressure relief no coal pillar self forming roadway mining method mainly uses collapsible U type steel and steel mesh to support goaf gangue in the rear of working face, to form gangue bank in the roadway goaf side of automatic roadway, to realize automatic roadway.

[0003] Using pressure relief coal pillar in recovery roadway can obtain certain control bottom heave effect, when the roadway on one side of working face has no pressure relief coal pillar, due to the action of concentrated stress on coal body, not only makes coal body move into roadway, but also bottom plate bears excessive pressure and produces bottom heave, the role of pressure relief coal pillar at this time makes transmission instead of bearing pressure, after pressure relief coal pillar breaks, stress on it can be transferred to far coal body, to reduce bottom heave amount.

[0004] The existing U type steel is mainly connected using connecting rod or connecting plate, that is, one steel bar or steel plate has fixed screw hole at both ends, to facilitate the connection with the cable fixing bolt on collapsible U type steel, and when cable and U type steel are connected, operator is needed, and bolt and U type steel and cable are positioned and aligned constantly, therefore two groups or more operators are needed to operate, and more operation can cause cable to deviate constantly when connected with U type steel, to cause connection misalignment, to solve the problem, the top cutting pressure relief no coal pillar self forming roadway gangue U type steel connecting structure is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a top cutting pressure relief no coal pillar self forming roadway gangue U type steel connecting structure to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of cutting top pressure-releasing no coal pillar self-forming roadway gangue blocking U-shaped steel connecting structure, including U-shaped steel body and cable clamp, the inner wall of the U-shaped steel body is fixedly installed with connecting block, the surface of the cable clamp is equipped with clamping hole, the control assembly that is positioned and connected is arranged in the connecting block, the control assembly includes: limiting hole, the limiting hole is opened on the surface of connecting block, the section shape of the clamping hole is L-shaped;Positioning rod, the positioning rod passes through connecting block and is slidably connected with connecting block, the surface of the positioning rod is fixedly installed with moving plate, the moving plate passes through connecting block and is slidably connected with connecting block, the moving plate is passed through and is slidably connected with support rod by support rod, the inner wall of the connecting block is fixedly installed on the support rod, so as to guarantee the stability of cable clamp in the connecting process with U-shaped steel body, avoid the situation of deviation misplacement due to shaking.

[0007] Preferably, the control assembly further includes a positioning member, the positioning member includes: spring one, one end of the spring one is fixedly installed on the inner wall of the connecting block, the other end of the spring one is fixedly installed on the surface of the moving plate, when the moving plate is no longer subjected to the pushing force, it can be popped up under the support of the spring one.

[0008] Preferably, the surface of the moving plate is fixedly installed with a vertical rod, the vertical rod passes through and is slidably connected with a moving rod, the moving rod passes through and is slidably connected with the connecting block, and the moving rod can move longitudinally on the surface of the vertical rod.

[0009] Preferably, the surface of the moving plate is fixedly installed with a sliding rod, the sliding rod is slidably connected with an arc-shaped groove, and when the moving plate moves transversely, the sliding rod fixed on the surface of the moving plate can slide in the arc-shaped groove.

[0010] Preferably, the arc-shaped groove is opened on the surface of a circular rod, the circular rod is rotatably connected with the inner wall of the connecting block, and when the sliding rod slides in the arc-shaped groove opened on the surface of the circular rod, the circular rod can rotate on the inner wall of the connecting block.

[0011] Preferably, the circular rod passes through and is fixedly connected with a circular plate, the surface of the circular plate is provided with a clamping groove, and the clamping groove can limit the rotation of the circular plate and the circular rod.

[0012] Preferably, the connecting block is passed through and slidably connected with a clamping rod, one end of the surface of the clamping rod is fixedly connected with spring two, and the other end of the spring two is fixedly installed on the inner wall of the connecting block, so that when the clamping rod is stressed, it can be moved out of the connecting block under the support of the spring two.

[0013] Compared with the prior art, the utility model provides a kind of cutting top pressure-releasing no coal pillar self-forming roadway gangue blocking U-shaped steel connecting structure, with the following beneficial effects:

[0014] 1. The top cutting pressure relief no coal column self-lane blocking gangue U-shaped steel connecting structure, through the control assembly, the long mouth of the limiting hole, the transverse pushing of the moving rod, the surface of the vertical rod is contacted, the moving plate fixed on the surface of the vertical rod is stressed under the support of the spring one, and the transverse movement is carried out on the surface of the supporting rod, when the moving plate moves, the positioning rod fixed on the surface of the moving plate will be clamped into the clamping hole opened on the surface of the clamping cable, the positioning rod is attached to the top of the clamping cable, after the attachment, the moving rod is longitudinally pushed in the vertical rod, and the moving rod can be clamped into the corner of the limiting hole, the preliminary positioning of the clamping cable is completed, so that the stability of the clamping cable in the connecting process with the U-shaped steel body is ensured, and the offset and misplacement caused by shaking is avoided.

[0015] 2. The top cutting pressure relief no coal column self-lane blocking gangue U-shaped steel connecting structure, through the positioning rod, when the moving plate moves, the sliding rod fixed on the surface of the moving plate will slide in the arc-shaped groove opened on the surface of the round rod, so that the round rod can drive the circular plate to move in the connecting block, and the surface of the circular plate is provided with a clamping groove, so that when the clamping rod is not stressed and clamped in the clamping groove, the circular plate and the round rod cannot be rotated, the sliding rod and the moving plate cannot be moved, and the position of the positioning rod cannot be changed, so that the stability of the clamping cable after the preliminary positioning with the connecting block is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structure schematic diagram of the utility model;

[0017] Figure 2 It is a front view structure schematic diagram of the utility model;

[0018] Figure 3 It is a clamping cable structure schematic diagram of the utility model;

[0019] Figure 4 It is a side view structure schematic diagram of the utility model;

[0020] Figure 5 It is a connecting block cross section structure schematic diagram of the utility model.

[0021] In the drawing: 1, U-shaped steel body; 2, connecting block; 3, clamping cable; 4, clamping hole; 6, control assembly; 61, limiting hole; 62, positioning rod; 63, moving plate; 64, supporting rod; 65, positioning piece; 651, spring one; 652, vertical rod; 653, moving rod; 654, sliding rod; 655, arc-shaped groove; 656, round rod; 657, circular plate; 658, clamping groove; 659, clamping rod; 650, spring two. DETAILED DESCRIPTION

[0022] As Figures 1-5The utility model provides a technical scheme: a kind of cutting top pressure relief no-pillar self-forming lane gangue U-shaped steel connecting structure, including U-shaped steel body 1 and cable clamp 3, the inner wall of U-shaped steel body 1 is fixedly installed with connecting block 2, the surface of cable clamp 3 is equipped with clamping hole 4, connecting block 2 is provided with the control assembly 6 of positioning connection, control assembly 6 includes: limit hole 61, limit hole 61 is set on the surface of connecting block 2, the section shape of limit hole 61 is L-shaped, positioning rod 62 is passed through connecting block 2 and is slidably connected with connecting block 2, positioning rod 62 is fixedly installed with moving plate 63 on the surface, moving plate 63 is passed through connecting block 2 and is slidably connected with connecting block 2, moving plate 63 is passed through and is slidably connected with support rod 64, support rod 64 is fixedly installed on the inner wall of connecting block 2, the positioning rod 62 fixed on the surface of moving plate 63 can slide on the surface of connecting block 2, positioning rod 62 moves, and is clamped into clamping hole 4, and is adhered with the top of cable clamp 3, the length of positioning rod 62 is greater than the width of clamping hole 4, so positioning rod 62 can be fixed to cable clamp 3, after being fixed, in vertical rod 652, moving rod 653 is longitudinally pushed, then moving rod 653 can be clamped into the corner of clamping hole 4, complete the preliminary positioning of cable clamp 3, to ensure the stability of cable clamp 3 in the connecting process with U-shaped steel body 1, avoid the situation of deviation misplacement due to shaking.

[0023] The control assembly 6 further comprises a positioning member 65, which comprises a spring 651, one end of the spring 651 is fixedly installed on the inner wall of the connecting block 2, and the other end of the spring 651 is fixedly installed on the surface of the moving plate 63, and the moving plate 63 can pop up under the support of the spring 651 when the moving plate 63 is no longer subjected to the pushing force. The surface of the moving plate 63 is fixedly installed with a vertical rod 652, the vertical rod 652 penetrates through a moving rod 653 and is in sliding connection with the moving rod 653, the moving rod 653 penetrates through the connecting block 2 and is in sliding connection with the connecting block 2, and the moving rod 653 can move longitudinally on the surface of the vertical rod 652. The surface of the moving plate 63 is fixedly installed with a sliding rod 654, the sliding rod 654 is in sliding connection with an arc-shaped groove 655, and when the moving plate 63 moves transversely, the sliding rod 654 fixedly installed on the surface of the moving plate 63 can slide in the arc-shaped groove 655. The arc-shaped groove 655 is formed on the surface of a circular rod 656, the circular rod 656 is in rotational connection with the inner wall of the connecting block 2, and when the sliding rod 654 slides in the arc-shaped groove 655 formed on the surface of the circular rod 656, the circular rod 656 can rotate on the inner wall of the connecting block 2. The circular rod 656 penetrates through a circular plate 657 and is in fixed connection with the circular plate 657, the surface of the circular plate 657 is provided with a clamping groove 658, and the clamping groove 658 can limit the rotation of the circular plate 657 and the circular rod 656. The connecting block 2 is penetrated through by a clamping rod 659 and is in sliding connection with the clamping rod 659, one end of the clamping rod 659 is fixedly connected with the spring 650, and the other end of the spring 650 is fixedly installed on the inner wall of the connecting block 2, and when the clamping rod 659 is subjected to a force, the clamping rod 659 can move out of the connecting block 2 under the support of the spring 650.

[0024] In the utility model, when needing to connect and position the U-shaped steel body 1 and the cable clamp 3, the surface of the connecting block 2 fixed with the cable clamp 3 and the U-shaped steel body 1 inner wall is pasted, after pasting, the clamping rod 659 is pulled in the connecting block 2, the clamping rod 659 is forced to move out from the connecting block 2 under the support of the spring two 650, after the clamping rod 659 moves out, it can move out from the clamping groove 658 formed in the surface of the round plate 657, after moving out, the force of pulling is kept, the moving rod 653 is pushed in the connecting block 2, the moving rod 653 slides at the long mouth in the connecting block 2, when the moving rod 653 moves, the moving plate 63 can move on the surface of the support rod 64 under the support of the spring one 651 through the vertical rod 652 abutting the moving plate 63, when the moving plate 63 moves, the positioning rod 62 fixed on the surface of the moving plate 63 can slide on the surface of the connecting block 2, after the positioning rod 62 moves, it is clamped into the clamping hole 4 and pastes the top of the cable clamp 3, the length of the positioning rod 62 is greater than the width of the clamping hole 4, therefore the positioning rod 62 can fix the cable clamp 3, after fixing, the moving rod 653 is pushed in the vertical rod 652, then the moving rod 653 can be clamped into the corner of the clamping hole 4, the preliminary positioning of the cable clamp 3 is completed, thereby the stability of the cable clamp 3 in the connecting process with the U-shaped steel body 1 is guaranteed, the deviation and dislocation due to shaking are avoided, when the moving plate 63 moves, the sliding rod 654 fixed on the surface of the moving plate 63 can slide in the arc-shaped groove 655, then the round rod 656 can drive the round plate 657 to rotate in the connecting block 2, the surface of the round plate 657 is provided with the clamping groove 658, therefore after the cable clamp 3 and the positioning rod 62 are preliminarily positioned, the force of pulling the clamping rod 659 can be released, then the clamping rod 659 can be popped up under the support of the spring two 650 and clamped into the clamping groove 658 formed in the surface of the round plate 657, the rotation of the round plate 657 is limited, then the sliding rod 654 and the moving plate 63 cannot move, the position of the positioning rod 62 cannot change, the stability of the cable clamp 3 after the preliminary positioning with the connecting block 2 can be improved, after the preliminary positioning, the operator can position and fix the cable clamp 3 and the connecting block 2 by using the bolt, the connection between the two groups of U-shaped steel bodies 1 is completed.

[0025] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modifications or improvements without departing from the utility model idea spirit are within the protection scope of the utility model.

Claims

1. A top cutting pressure relief no-pillar self-lane blocking and dumping U-shaped steel connecting structure, comprising a U-shaped steel body (1) and a cable clamp (3), characterized in that: The inner wall of the U-shaped steel body (1) is fixedly installed with a connecting block (2), the surface of the cable clamping (3) is provided with a clamping hole (4), the connecting block (2) is provided with a control assembly (6) for positioning connection, the control assembly (6) comprises: The limiting hole (61) is provided on the surface of the connecting block (2), and the section shape of the limiting hole (61) is L-shaped; The positioning rod (62) penetrates through the connecting block (2) and is in sliding connection with the connecting block (2), the surface of the positioning rod (62) is fixedly installed with a moving plate (63), the moving plate (63) penetrates through the connecting block (2) and is in sliding connection with the connecting block (2), the moving plate (63) is penetrated by a supporting rod (64) and is in sliding connection with the supporting rod (64), and the supporting rod (64) is fixedly installed on the inner wall of the connecting block (2).

2. The top-cutting pressure-relieving coal-pillar-free self-lane-blocking and coal-removal U-shaped steel connecting structure according to claim 1, characterized in that: The control assembly (6) further comprises a positioning piece (65), and the positioning piece (65) comprises:

3. The U-shaped steel connection structure for roof cutting, pressure relief, and self-forming roadway without coal pillars as described in claim 1, characterized in that: The surface of the moving plate (63) is fixedly installed with a vertical rod (652), the vertical rod (652) penetrates through a moving rod (653) and is in sliding connection with the moving rod (653), and the moving rod (653) penetrates through the connecting block (2) and is in sliding connection with the connecting block (2).

4. The top cutting pressure releasing no-pillar self-lane and waste blocking U-shaped steel connecting structure according to claim 1, characterized in that: The surface of the moving plate (63) is fixedly installed with a sliding rod (654), and the sliding rod (654) is in sliding connection with an arc-shaped groove (655).

5. The roof cutting pressure releasing no-pillar self-lane and waste rock retaining U-shaped steel connecting structure according to claim 4, characterized in that: The arc-shaped groove (655) is provided on the surface of the circular rod (656), and the circular rod (656) is in rotary connection with the inner wall of the connecting block (2).

6. The roof cutting pressure releasing no-pillar self-lane and waste rock retaining U-shaped steel connecting structure according to claim 5, characterized in that: The circular rod (656) penetrates through a circular plate (657) and is fixedly connected with the circular plate (657), and the surface of the circular plate (657) is provided with a clamping groove (658).

7. The top-removing pressure-relieving coal-pillar-free self-lane-blocking and coal-removal U-shaped steel connecting structure according to claim 1, characterized in that: The connecting block (2) is penetrated by a clamping rod (659) and is in sliding connection with the clamping rod (659), one end of the clamping rod (659) is fixedly connected with the spring (650), and the other end of the spring (650) is fixedly installed on the inner wall of the connecting block (2).