Durable mine rockfall intercepting and protecting device

Abstract

The utility model discloses a durable mine rockfall intercepting and protecting device, which belongs to the technical field of rockfall intercepting and comprises a positioning frame mounted on the side surface of an underground rock wall, a plurality of intercepting supports distributed in a linear array are arranged on the positioning frame at intervals, and an intercepting support arm extending outwards is mounted in each intercepting support. Each intercepting support arm is provided with a plurality of steel wire ropes which are in a double-layer linear array and are in a tensioning state, all the intercepting support arms are in an inclined state, and the inclination angles are consistent. According to the durable mine rockfall intercepting and protecting device, the double-layer steel wire rope is adopted to replace a traditional steel bar type rockfall intercepting fence, the tensioned steel wire rope is not prone to deformation when being impacted by rockfall, the intercepting strength of the steel wire rope can be further improved through the double-layer design of the steel wire rope, and durability of the steel wire rope is longer; and secondly, as the steel wire rope is lighter than a reinforcing steel bar, the labor intensity is lower during installation, and the comprehensive cost is also lower.

Description

Technical Field

[0001] This utility model relates to the field of rockfall interception technology, specifically a durable mine rockfall interception and protection device. Background Technology

[0002] During mining operations, falling rocks and debris frequently occur at the mine ceiling. These rocks can damage equipment underground, rendering it unusable, affecting work efficiency, and posing significant safety hazards. Traditional rockfall barriers primarily use steel bars for interception. Due to the nature of steel bars, they are easily deformed when impacted by falling rocks. Once deformed, their interception strength is reduced, resulting in poor durability. Furthermore, the weight of steel bars increases the labor intensity during installation, leading to higher overall costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a durable mine rockfall interception and protection device that is not easily deformed when subjected to rockfall impact, has lower labor intensity during installation, and has lower overall cost.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A durable mine rockfall interception and protection device includes a positioning frame installed on the side of the underground rock wall, with multiple interception supports arranged in a linear array at intervals on the positioning frame, and an outwardly extending interception arm installed in each interception support.

[0006] Each interception arm is equipped with multiple double-layer linear arrays of tensioned steel wire ropes. All interception arms are tilted at the same angle, with an angle of 60-70° between the interception arm and the vertical plane.

[0007] Using the above solution, the durable mine rockfall interception and protection device uses double-layer steel wire rope instead of traditional steel bar rockfall interception barriers. The tensioned steel wire rope is not easily deformed when impacted by falling rocks, and the double-layer design of the steel wire rope can further improve its interception strength and its durability. Secondly, since the steel wire rope is lighter than steel bars, the labor intensity during installation is lower, and its overall cost is also lower.

[0008] As a preferred embodiment of a durable mine rockfall interception and protection device, multiple linearly arrayed wire rope limiting grooves are provided on both the upper and lower surfaces of the interception arm, and each wire rope limiting groove can only accommodate one wire rope.

[0009] The wire limiting groove is a V-shaped limiting groove, and the opening width of the wire limiting groove gradually decreases from the outside to the inside.

[0010] By adopting the above scheme, in order to improve the limiting effect of the wire rope, the wire rope is placed in the wire limiting groove. As the wire rope gradually goes deeper into the wire limiting groove, it can be gradually locked, further improving the positioning effect of the wire rope.

[0011] As a preferred embodiment of a durable mine rockfall interception and protection device, the end of the interception arm is provided with an insertion hole, into which a self-locking rod is inserted to completely lock the wire rope in the wire limit groove.

[0012] There are two self-locking rods, each of which is an N-shaped locking rod. Each self-locking rod simultaneously locks all the steel wire ropes located above and below the intercepting arm.

[0013] Using the above method, in order to lock the wire rope in the wire limit groove, after inserting the self-locking rod into the insertion hole, the self-locking rod will abut against the wire rope and lock into the wire limit groove, thereby fully tensioning the wire rope.

[0014] In a preferred embodiment of a durable mine rockfall interception and protection device, the interception support and the interception arm are connected by a pin, wherein the pin is inserted into an adjustment socket provided in the interception arm.

[0015] Using the above solution, in order to facilitate the adjustment of the tilt angle of the interceptor arm, the pin can be removed. After adjusting the tilt angle of the interceptor arm, the pin can be inserted into the adjustment hole to complete the tilt angle adjustment of the interceptor arm, which will make it more flexible in application.

[0016] As a preferred embodiment of a durable mine rockfall interception and protection device, the positioning frame has multiple positioning holes, and a drill rod is installed in each positioning hole and embedded in the side of the mine rock wall. The positioning frame is suspended and fixed to the mine rock wall by mounting bolts at the end of the drill rod away from the drill bit.

[0017] To fix the positioning frame using the above method, the drill rod is first embedded into the side of the rock wall in the well, then the positioning frame is suspended on the drill rod, and finally the positioning frame is suspended and fixed to the rock wall in the well by bolts.

[0018] After adopting the above technical solution, the beneficial effects of this utility model are:

[0019] 1. This durable mine rockfall interception and protection device uses double-layer steel wire rope instead of traditional steel bar rockfall interception barriers. The tensioned steel wire rope is not easily deformed when impacted by falling rocks, and the double-layer design of the steel wire rope can further improve its interception strength and its durability. Secondly, since the steel wire rope is lighter than steel bars, the labor intensity during installation is lower, and its overall cost is also lower.

[0020] 2. In order to improve the limiting effect of the wire rope, the wire rope is placed in the wire limiting groove. As the wire rope gradually goes deeper into the wire limiting groove, it can be gradually locked, further improving the positioning effect of the wire rope.

[0021] 3. In order to lock the wire rope in the wire limit groove, after inserting the self-locking rod into the socket, the self-locking rod will abut against the wire rope and lock into the wire limit groove, thereby fully tensioning the wire rope.

[0022] 4. To facilitate the adjustment of the tilt angle of the interceptor arm, the pin can be removed. After adjusting the tilt angle of the interceptor arm, the pin can be inserted into the adjustment hole to complete the tilt angle adjustment of the interceptor arm, which will make it more flexible in application.

[0023] 5. In order to fix the positioning frame, first insert the drill rod into the side of the rock wall in the well, then suspend the positioning frame on the drill rod, and finally fix the positioning frame to the rock wall in the well with bolts. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural diagram of a durable mine rockfall interception and protection device installed on an underground rock wall;

[0026] Figure 2 A three-dimensional structural diagram of a durable mine rockfall interception and protection device;

[0027] Figure 3 for Figure 2 Partial three-dimensional structural diagram;

[0028] Figure 4 To showcase Figure 3 A three-dimensional structural diagram of the internal structure;

[0029] Figure 5 for Figure 3 A three-dimensional structural diagram of the central interceptor arm;

[0030] Figure 6 for Figure 3 A magnified view of a section at point A in the middle;

[0031] Markings in the diagram: 1-Downhole rock wall; 2-Positioning frame; 3-Interception support; 4-Interception arm; 5-Wire rope; 6-Wire limit groove; 7-Socket; 8-Self-locking rod; 9-Pin; 10-Adjusting socket; 11-Drill pipe; 12-Bolt. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figures 1 to 4 As shown, a durable mine rockfall interception and protection device includes a positioning frame 2 installed on the side of an underground rock wall 1. Multiple linearly arrayed interception supports 3 are spaced apart on the positioning frame 2, and each interception support 3 houses an outwardly extending interception arm 4. Each interception arm 4 is equipped with multiple double-layered linearly arrayed and tensioned steel wire ropes 5. All interception arms 4 are tilted at a uniform angle, with an angle of 60-70° between the interception arm 4 and the vertical plane. This durable mine rockfall interception and protection device uses double-layered steel wire ropes 5 instead of traditional steel-reinforced rockfall interception barriers. The tensioned steel wire ropes 5 are less prone to deformation under rockfall impact, and the double-layered design further enhances their interception strength and durability. Furthermore, since steel wire ropes 5 are lighter than steel bars, installation requires less labor, resulting in lower overall costs.

[0034] like Figures 4 to 5 As shown, multiple linearly arrayed wire rope limiting grooves 6 are formed on both the upper and lower surfaces of the intercepting arm 4. Each wire rope limiting groove 6 can only accommodate one wire rope 5. The wire rope limiting groove 6 is a V-shaped groove, with its opening width gradually decreasing from the outside to the inside. To improve the limiting effect of the wire rope 5, the wire rope 5 is placed in the wire rope limiting groove 6. As the wire rope 5 gradually penetrates deeper into the groove 6, it is gradually engaged, further improving the positioning effect of the wire rope 5.

[0035] like Figures 4 to 5As shown, the end of the intercepting arm 4 has an insertion hole 7, into which a self-locking rod 8 is inserted to completely lock the wire rope 5 within the wire limiting groove 6. There are two self-locking rods 8, each an N-shaped locking rod, and each self-locking rod 8 simultaneously locks all the wire ropes 5 located above and below the intercepting arm 4. To achieve locking of the wire rope 5 within the wire limiting groove 6, after the self-locking rod 8 is inserted into the insertion hole 7, the self-locking rod 8 will abut against the wire rope 5 and engage within the wire limiting groove 6, thereby fully tensioning the wire rope 5.

[0036] like Figures 4 to 5 As shown, the interceptor support 3 and the interceptor arm 4 are connected by a pin 9, which is inserted into the adjustment socket 10 provided in the interceptor arm 4. To facilitate the adjustment of the tilt angle of the interceptor arm 4, the pin 9 can be removed. After adjusting the tilt angle of the interceptor arm 4, the pin 9 can be inserted into the adjustment socket 10 to complete the tilt angle adjustment of the interceptor arm 4, making it more flexible in application.

[0037] like Figure 6 As shown, the positioning frame 2 has multiple positioning holes, and a drill rod 11 is installed in each positioning hole and embedded into the side of the underground rock wall 1. The positioning frame 2 is suspended and fixed to the underground rock wall 1 by mounting bolts 12 at the end of the drill rod 11 away from the drill bit. In order to fix the positioning frame 2, the drill rod 11 is first drilled into the side of the underground rock wall 1, then the positioning frame 2 is suspended on the drill rod, and finally the positioning frame 2 is suspended and fixed to the underground rock wall 1 by bolts 12.

[0038] The working principle of this utility model:

[0039] In application, first install the positioning frame 2. Drill the drill rod 11 into the side of the rock wall 1 in the well, then suspend the positioning frame 2 on the drill rod, and finally fix the positioning frame 2 to the rock wall 1 in the well with bolts 12.

[0040] Next, adjust the tilt angle of the interceptor arm 4. Remove the pin 9, and after adjusting the tilt angle of the interceptor arm 4 to 60-70° with the vertical plane, insert the pin 9 into the adjustment socket 10 to complete the tilt angle adjustment of the interceptor arm 4.

[0041] Finally, the wire rope 5 is laid and installed. The wire rope 5 is placed in the wire limiting groove 6, and the self-locking rod 8 is inserted into the insertion hole 7. As the self-locking rod 8 is continuously inserted, it will abut against the wire rope 5 and engage within the wire limiting groove 6, thus fully tensioning the wire rope 5. This durable mine rockfall interception and protection device uses double-layered wire rope 5 for rockfall interception. The tensioned wire rope 5 is less prone to deformation when impacted by falling rocks, and the double-layered design further enhances its interception strength and extends its durability.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A durable mine rockfall interception and protection device, comprising a positioning frame installed on the side of the underground rock wall, wherein the positioning frame is provided with a plurality of interception supports arranged in a linear array at intervals, and each interception support is provided with an outwardly extending interception arm. Its features are: Each interception arm is equipped with multiple double-layer linear arrays of tensioned steel wire ropes. All interception arms are tilted at the same angle, with the angle between the interception arm and the vertical plane being 60-70°.

2. The durable mine rockfall interception and protection device according to claim 1, characterized in that: The interception arm has multiple linearly arrayed steel wire limiting grooves on both its upper and lower surfaces, with each steel wire limiting groove accommodating only one steel wire rope.

3. The durable mine rockfall interception and protection device according to claim 2, characterized in that: The wire limiting groove is a V-shaped limiting groove, and the opening width of the wire limiting groove gradually decreases from the outside to the inside.

4. The durable mine rockfall interception and protection device according to claim 3, characterized in that: The end of the interception arm is provided with an insertion hole, into which a self-locking rod is inserted to completely lock the wire rope in the wire limit groove.

5. The durable mine rockfall interception and protection device according to claim 4, characterized in that: There are two self-locking rods, each of which is an N-shaped locking rod. Each self-locking rod simultaneously locks all the steel wire ropes located above and below the intercepting arm.

6. The durable mine rockfall interception and protection device according to claim 1, characterized in that: The interceptor support and the interceptor arm are connected by a pin, wherein the pin is inserted into an adjustment socket provided in the interceptor arm.

7. The durable mine rockfall interception and protection device according to any one of claims 1-6, characterized in that: The positioning frame has multiple positioning holes, and a drill rod is installed in each positioning hole and embedded in the side of the rock wall in the well. The positioning frame is suspended and fixed to the rock wall in the well by a mounting bolt at the end of the drill rod away from the drill bit.

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