Roof separation instrument steel wire rope one-way locking mechanism and anchoring structure

Abstract

The utility model relates to a one-way locking mechanism for a steel wire rope of a roof separation instrument and an anchoring structure, and belongs to the technical field of mining equipment accessories. The one-way locking mechanism comprises a sliding sleeve, a through hole is formed in the sliding sleeve, a locking sliding cavity is formed in the middle of the through hole, a locking sliding block is slidably connected into the locking sliding cavity, one side of the locking sliding cavity is an inclined face, the other side of the locking sliding cavity is a sawtooth face, and correspondingly, one side of the sliding block is a sliding inclined face, and the other side of the sliding block is locking sawteeth. A pre-tightening spring is arranged between the bottom of the sliding block and the bottom face of the locking sliding cavity. The one-way locking mechanism and the anchoring structure can be used for locking the steel wire rope of the roof separation instrument and are convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment accessories, and particularly relates to a one-way locking mechanism and an anchoring structure for a steel wire rope of a roof separation indicator. Background Art

[0002] A surrounding rock movement sensor, commonly known as a roof separation indicator, fixes multiple steel wire ropes in rock formations at different depths on the top of a mine using anchor claws. When different rock formations settle to varying degrees, the steel wire ropes are pulled by the anchor claws, thereby driving the distance measuring mechanism of the roof separation indicator to act, measuring the distance by which the steel wire ropes are pulled, and realizing the calculation of the separation amount between the rock formations, so as to provide analysis data for safe production.

[0003] In current technologies, most electronic sensors use a similar structure. The steel wire rope is wound around a runner of the distance measuring mechanism. When the steel wire rope is pulled, the runner is driven to rotate. The concentric shaft of the runner is connected to a multi-turn potentiometer of the distance measuring mechanism, and the potentiometer rotates to generate a resistance change. The distance by which the steel wire rope is pulled is calculated by measuring the resistance change.

[0004] In the specific usage method: multiple movable steel wire ropes about 5 - 20 m long are driven into the rock mass of the roof of a coal mine roadway and are anchored at different depths of the borehole using fixing devices at the ends. When different rock formations on the roof sink and separate, the steel wire ropes fixed on the corresponding anchor claws at the same position are pulled, and the pulled-in distance is the separation amount. The separation amount is usually 0 - 500 cm. After the steel wire ropes are anchored, they are fixed to the end of the steel wire or tape measure of the distance measuring mechanism. The movable steel wire ropes drive the distance measuring mechanism to move together. The conventional method is to connect the steel wire rope and the distance measuring mechanism through a slider. The distance measuring mechanism is fixed to the slider, and the steel wire rope is loosened or clamped by a clamping screw. Since it is necessary to make the separation indicator as close to the surrounding rock roof as possible during construction, the space for loosening and clamping the steel wire rope of the separation indicator by the slider is small. At the same time, after installation, the steel wire rope needs to be tightened and then the clamping screw on the slider is tightened. This operation process usually requires two people to cooperate to complete. In addition, there is a possibility that the steel wire rope will be cut off when the slider presses the steel wire rope with the clamping screw, and a larger contact area is required to clamp the steel wire rope. Summary of the Invention

[0005] To solve the problems in the prior art, the utility model patent designs a one-way locking mechanism and an anchoring structure for a steel wire rope of a roof separation indicator to solve the problem that the application effect of the existing method of fixing the steel wire rope using a slider with a clamping screw for the roof separation indicator is not ideal.

[0006] The technical solution adopted by a unidirectional locking mechanism for the steel wire rope of a roof separation indicator in the utility model patent design is as follows: The unidirectional locking mechanism includes a sliding sleeve, a through hole is provided in the sliding sleeve, the middle part of the through hole is a locking sliding cavity, a locking slider is slidably connected in the locking sliding cavity, one side of the locking sliding cavity is an inclined surface, and the other side is a serrated surface, so that the inner diameter of the locking sliding cavity gradually decreases from bottom to top. Correspondingly, one side of the locking slider is a sliding inclined surface, and the other side is a locking serration. A pre-tightening spring is arranged between the bottom of the slider and the bottom surface of the locking sliding cavity.

[0007] Further, the sliding sleeve includes a bottom plate and a sliding cover. The sliding cover is assembled and fixed on the bottom plate by screws. The serrated surface is arranged on the bottom plate, and the through hole and the locking sliding cavity are arranged on the sliding cover.

[0008] The technical solution adopted by an anchoring structure for the steel wire rope of a roof separation indicator in the utility model patent design is that the anchoring structure includes an anchor claw, a steel wire rope and a bolt. The bottom end of the bolt is connected to the ranging mechanism of the roof separation indicator. The above-mentioned unidirectional locking mechanism for the steel wire rope of the roof separation indicator is slidably connected in the bolt. The top end of the steel wire rope is connected to the anchor claw, and the bottom end passes downward through the through hole between the locking serrations where the locking slider of the unidirectional locking mechanism is docked with the sliding sleeve. The bottom of the sliding sleeve is connected to the ranging wire of the ranging mechanism.

[0009] Further, multiple sets of anchor claws, steel wire ropes and ranging mechanisms are provided for the anchoring structure. Correspondingly, the inner part of the bolt is partitioned into multiple through cavities, and a unidirectional locking mechanism is slidably connected in each through cavity. The unidirectional locking mechanism is connected to the corresponding steel wire rope and the ranging wire of the ranging mechanism.

[0010] Compared with the prior art, the progress of a unidirectional locking mechanism for the steel wire rope of a roof separation indicator and an anchoring structure in the utility model patent design lies in: When the unidirectional locking mechanism is in use, the steel wire rope passes through between the locking serration mating surfaces of the locking slider and the sliding sleeve. The serrated surface will increase the friction between the unidirectional locking mechanism and the steel wire rope. The setting of the pre-tightening spring can keep a stable clamping force between the locking slider and the sliding sleeve all the time. When the steel wire rope is pulled downward, the friction will drive the locking slider to move downward against the pre-tightening spring, reducing the clamping force of the unidirectional locking mechanism and facilitating the passage of the steel wire rope; when the steel wire rope is pulled upward, the friction will drive the locking slider to move upward, and under the extrusion of the locking sliding cavity, the clamping force of the serrated surface between the locking slider and the sliding sleeve becomes larger, preventing the steel wire rope from moving. The anchoring structure of the roof separation indicator using this unidirectional locking mechanism is convenient to install, does not require the installation of clamping screws, is not restricted by the on-site operation space, and a single person can quickly complete the docking and installation operation of the steel wire rope and the ranging mechanism, which is convenient and labor-saving. Description of the Drawings

[0011] Figure 1It is a schematic structural diagram of a one-way locking mechanism for the steel wire rope of a roof separation indicator.

[0012] Figure 2 It is a schematic structural diagram of an anchoring structure for the steel wire rope of a roof separation indicator.

[0013] In the figure, 1 is a sliding sleeve, 2 is a locking slider, 3 is a pre-tightening spring, 4 is an anchor claw, 5 is an anchor rod, 6 is a distance measuring mechanism, 7 is a distance measuring steel wire, 8 is a steel wire rope, 9 is a one-way locking mechanism, 11 is a bottom plate, 12 is a sliding cover, 13 is a serrated surface, 14 is a locking sliding cavity, and 21 is a locking serration. Specific implementation manners

[0014] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present utility model are clearly and completely described. The described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Embodiment

[0015] As Figure 1 shown, the present utility model patent designs an embodiment of a one-way locking mechanism for the steel wire rope of a roof separation indicator. In this embodiment, the one-way locking mechanism includes a sliding sleeve 1 and a locking slider 2. The sliding sleeve 1 includes a bottom plate 11 and a sliding cover 12. The two ends of the sliding cover 12 are respectively assembled and fixed on the bottom plate 11 by screws. The inner side surface of the bottom plate 11 is a serrated surface 13. The sliding cover 12 is provided with a through hole along the midline on the docking side with the bottom plate 11. A locking sliding cavity 14 is arranged inside the sliding cover 12. The locking slider 2 is slidably connected in the locking sliding cavity 14. The inner side surface of the locking sliding cavity 14 is an inclined surface, so that the inner diameter of the locking sliding cavity 14 gradually decreases from bottom to top. Correspondingly, one side of the locking slider 2 is also a sliding inclined surface with the same angle, and the other side is a locking serration 21. The locking serration 21 and the serrated surface 13 can be engaged with each other. A pre-tightening spring 3 is arranged between the bottom of the locking slider 2 and the bottom surface of the locking sliding cavity 14 of the sliding cover 12. The pre-tightening spring 3 pushes the locking slider 2 upward. Embodiment

[0016] Combined with Figure 2As shown, the utility model patent also designs an embodiment of an anchoring structure for the steel wire rope of a roof separation indicator. In this embodiment, the anchoring structure includes two sets of anchor claws 4, a steel wire rope 8, and a bolt 5. The bottom end of the bolt 5 is connected to the housing of the ranging mechanism 6 of the roof separation indicator. A partition is arranged along the vertical center line in the bolt 5, dividing the interior of the bolt 5 into two cavities. In each cavity, a unidirectional locking mechanism 9 for the steel wire rope of the roof separation indicator as described in Embodiment 1 is slidably connected. The top end of the steel wire rope 8 is connected to the corresponding anchor claw 4, and the bottom end passes downward through the sawtooth surface where the locking slider 2 of the corresponding unidirectional locking mechanism 9 is butted against the sliding sleeve 1 through a through hole. The bottom of the sliding sleeve 1 is fixedly connected to the ranging steel wire 7 of the ranging mechanism 6.

[0017] When the unidirectional locking mechanism and the anchoring structure for the steel wire rope of the roof separation indicator disclosed in the utility model patent are applied, the anchor claw 4 is pushed to the drilling installation position. The bottom end of the steel wire rope 8 passes through the sawtooth butting surface between the locking slider 2 of the unidirectional locking mechanism and the sliding sleeve 1. Then, the unidirectional locking mechanism 9 is assembled and fixed. The steel wire rope 8 is pulled downward relative to the unidirectional locking mechanism 9 to an appropriate length. Then, the ranging steel wire 7 of the ranging mechanism 6 is fixedly connected to the sliding sleeve 1 of the unidirectional locking mechanism 9 to complete the installation of the roof separation indicator.

[0018] The above content is only a preferred embodiment of the present invention and creation, and cannot be used to limit the scope of implementation of the present invention and creation. That is, all simple equivalent changes and modifications made according to the claims of the present invention and creation and the description content of the invention and creation still fall within the scope covered by the present invention and creation.

Claims

1. A wire rope one-way locking mechanism for a roof separation indicator, characterized in that, The one-way locking mechanism includes a sliding sleeve. A through hole is provided in the sliding sleeve. The middle part of the through hole is a locking sliding cavity. A locking slider is slidably connected in the locking sliding cavity. One side of the locking sliding cavity is an inclined surface, and the other side is a serrated surface, so that the inner diameter of the locking sliding cavity gradually decreases from bottom to top. Correspondingly, one side of the locking slider is a sliding inclined surface, and the other side is a locking serration. A pre-tightening spring is provided between the bottom of the slider and the bottom surface of the locking sliding cavity.

2. The one-way locking mechanism for the steel wire rope of the roof separation indicator according to claim 1, wherein, The sliding sleeve includes a bottom plate and a sliding cover. The sliding cover is assembled and fixed on the bottom plate by screws. The serrated surface is provided on the bottom plate. The through hole and the locking sliding cavity are provided on the sliding cover.

3. An anchoring structure for the steel wire rope of a roof separation indicator. The anchoring structure includes an anchor claw, a steel wire rope, and a bolt. The bottom end of the bolt is connected to the ranging mechanism of the roof separation indicator, and it is characterized in that A roof separation meter wire rope one-way locking mechanism as described in claim 2 is slidably connected in the bolt. The top end of the wire rope is connected to an anchor claw, and the bottom end passes downward through the serrated surface where the locking slider of the one-way locking mechanism is docked with the sliding sleeve through the through hole. The bottom of the sliding sleeve is connected to the ranging wire of the ranging mechanism.

4. An anchoring structure for the steel wire rope of a roof separation indicator according to claim 3, characterized in that, Multiple sets of anchor claws, wire ropes and ranging mechanisms are provided in the anchoring structure. Correspondingly, the interior of the bolt is partitioned into multiple through cavities. A one-way locking mechanism is slidably connected in each through cavity. The one-way locking mechanism is connected to the corresponding wire rope and the ranging wire of the ranging mechanism.

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