Mining cable with buffer structure

Abstract

The utility model relates to the technical field of cables, in particular to a mining cable with a buffer structure, which comprises a cable body, a locking assembly, a buffer plate, a slider B, a buffer assembly and a tension adjusting assembly. An arc-shaped plate A and an arc-shaped plate B are arranged outside the cable body, flexible clamping assemblies are arranged on the concave surfaces of the arc-shaped plate A and the arc-shaped plate B, and a sliding groove is formed in the arc-shaped plate A; the locking assembly is arranged on the arc-shaped plate B; the buffer plate is arranged in the sliding groove and slidably connected with the inner wall of the sliding groove. The sliding blocks B are symmetrically and slidably arranged in the sliding grooves and rotationally connected with the connecting rods, and the connecting rods on the two sides are rotationally connected with the buffer plate. The buffering assembly is arranged in the sliding groove, and the movable end of the buffering assembly is connected with the sliding block B; the tensioning adjusting assembly is arranged in the sliding groove and is in driving connection with the fixed end of the buffering assembly. The buffer structure is easy to disassemble and assemble, the tension degree of the buffer plate is convenient to adjust, and the buffer plate is convenient to disassemble and replace.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a mining cable with a buffer structure. Background Technology

[0002] When working in a mine, it is necessary to transmit power to the equipment underground via cables. Due to the complex structure inside the mine, rocks are prone to falling. Although the cable sheath has a certain protective performance, long-term exposure to sharp rocks can cause damage to the sheath, resulting in leakage. Therefore, it is necessary to install a buffer protection structure for the cable at certain points.

[0003] The technical solution disclosed in Chinese Patent No. CN220456119U involves adding an extra layer of protective components to the outside of the cable. The internal protective components provide a buffering effect for the line itself, so that the exposed cable can be protected to a certain extent when it is squeezed or impacted. This extends the service life of the equipment and prevents leakage caused by damage to the outer sheath of the line, making the equipment safer to use. It also allows for quick and stable installation and reinforcement of the external components of the cable.

[0004] However, the device still has shortcomings: the outer shell of the external protective structure needs to be put on the outside of the cable in advance; during on-site construction, there are many points on the cable that need protection, and there is a tendency for perforation to occur between two adjacent points that need protection, which makes the installation difficult; in addition, the tension of the protective structure cannot be adjusted, and once the spring is weak, it needs to be replaced immediately. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a mining cable with a buffer structure.

[0006] The technical solution of this utility model is as follows: a mining cable with a buffer structure, including a cable body, an annular sheath composed of an arc plate A and an arc plate B is provided on the outside of the cable body, the arc plate A and the arc plate B are rotatably connected, and flexible clamping components are provided on the concave surfaces of the arc plate A and the arc plate B, and a sliding groove is provided on the arc plate A.

[0007] A locking assembly is provided on the arc-shaped plate B to control the opening and closing of the arc-shaped plate A and the arc-shaped plate B.

[0008] A buffer plate is set inside the chute and slidably connected to its inner wall.

[0009] Slider B, two sliders B are symmetrically and slidably set in the groove. Slider B is rotatably connected to the connecting rod. The ends of the connecting rods on both sides away from the corresponding sides of slider B are rotatably connected to the buffer plate.

[0010] A buffer assembly is installed inside the slide groove, and the movable end of the buffer assembly is connected to slider B.

[0011] And a tension adjustment component, which is set in the slide groove and drives the fixed end of the buffer component.

[0012] Preferably, the cable body includes an outermost insulation layer, a metal armor layer that is closely attached to the inner wall of the housing, a flexible protective layer that is closely attached to the inner wall of the metal armor layer, a flame-retardant layer that is closely attached to the inner wall of the flexible protective layer, a wire core disposed inside the flame-retardant layer, and a flame-retardant filler for filling the gap between the wire core and the inner wall of the flame-retardant layer.

[0013] Preferably, several optical fibers are arranged radially within the insulating layer, and each optical fiber is arranged in a ring array around its axis.

[0014] Preferably, the flexible clamping assembly includes an arc-shaped seat and a buffer pad, each arc-shaped seat being connected to the concave surface of the arc-shaped plate A, and each buffer pad being detachably mounted on the arc-shaped seat.

[0015] Preferably, the locking assembly includes a spring rod and a locking block. A hinge is provided on the arc-shaped plate B, and the arc-shaped plate A is connected to the movable end of the hinge. A locking groove is provided at the end of the arc-shaped plate A away from the hinge, and the locking groove is a T-shaped groove. A horizontal groove is provided at the end of the arc-shaped plate B away from the hinge. The spring rod and the locking block are both located in the horizontal groove. The locking block is slidably connected to the inner wall of the horizontal groove. The two ends of the spring rod are respectively connected to the inner wall of the locking block and the horizontal groove. A lever plate is provided on the locking block, which is slidably connected to the arc-shaped plate B. The locking block is an L-shaped locking block, and the horizontal end of the locking block faces the same direction as the horizontal end of the T-shaped groove.

[0016] Preferably, it also includes screws; the end of the connecting rod away from the slider B is rotatably connected to the adapter seat, and several limiting grooves are provided on the concave surface of the buffer plate. Each adapter seat is inserted into the limiting groove on the corresponding side and connected to the buffer plate by screws.

[0017] Preferably, a slide bar is provided inside the slide groove, and the slider B is slidably connected to the slide bar.

[0018] Preferably, the buffer assembly includes a spring, and a slider A is respectively provided on the side of the two sliders B that are far apart from each other. Slider A is slidably connected to the slide rod. The spring is sleeved on the slide rod, and the two ends of the spring abut against the side of slider A and slider B that are close to each other on the same side.

[0019] Preferably, the tension adjustment assembly includes a bidirectional lead screw A; the bidirectional lead screw A is disposed in the slide groove and rotatably connected to the arc plate A, the bidirectional lead screw A passes through the slider A and the slider B, the two sliders A on both sides are respectively helically connected to the corresponding ends of the bidirectional lead screw A, and the slider B is slidably connected to the bidirectional lead screw A.

[0020] Preferably, two positioning plates are symmetrically arranged in the groove and slidably connected to its inner wall. The positioning plates are slidably connected to the slide rod. The two positioning plates are located between the sliders B on both sides. A bidirectional lead screw B is provided in the groove and rotatably connected to the arc plate A. The bidirectional lead screw B passes through the positioning plates, and the two positioning plates are respectively screwed to the corresponding ends of the bidirectional lead screw B.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] By setting up arc-shaped plates A and B, which are rotatably connected and form a complete annular protective sleeve after being closed, this structure can be directly added to existing cable foundations without quantity restrictions and is easy to assemble and disassemble. By setting up flexible buffer pads, it is easy to assemble this buffer structure with mining cables of different outer diameters. By setting up buffer plates, buffer components, and tension adjustment components, it is easy to adjust the tension of the buffer components according to the actual site requirements, and the assembly and disassembly of the buffer plates under this structure are simpler and more convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between arc-shaped plate A and arc-shaped plate B;

[0025] Figure 3 This is a schematic diagram of the buffer plate structure;

[0026] Figure 4 This is a schematic diagram of the connection structure between the buffer plate and the arc plate A.

[0027] Reference numerals in the attached diagram: 1. Cable body; 2. Arc plate A; 201. Slot; 202. Slide groove; 3. Arc plate B; 4. Arc seat; 5. Buffer pad; 6. Spring rod; 7. Locking block; 8. Pulley; 9. Buffer plate; 91. Limiting groove; 10. Slide rod; 11. Slider A; 12. Slider B; 13. Spring; 14. Double-acting lead screw A; 15. Connecting rod; 16. Adapter seat; 17. Screw; 18. Positioning plate; 19. Double-acting lead screw B. Detailed Implementation

[0028] Example 1

[0029] like Figures 1-4As shown, this utility model proposes a mining cable with a buffer structure, including a cable body 1, a locking assembly, a buffer plate 9, a slider B12, a buffer assembly, and a tension adjustment assembly. The cable body 1 includes an outermost insulation layer, a metal armor layer closely attached to the inner wall of the shell, a flexible protective layer closely attached to the inner wall of the metal armor layer, a flame-retardant layer closely attached to the inner wall of the flexible protective layer, a wire core disposed inside the flame-retardant layer, and flame-retardant filler for filling the gap between the wire core and the inner wall of the flame-retardant layer. Several optical fibers are arranged radially inside the insulation layer, and each optical fiber is arranged in a ring array around its axis. The cable body 1 is externally provided with an annular sheath composed of an arc-shaped plate A2 and an arc-shaped plate B3. The arc-shaped plate A2 and the arc-shaped plate B3 are rotatably connected, and flexible clamping assemblies are provided on the concave surfaces of the arc-shaped plate A2 and the arc-shaped plate B3. A sliding groove 202 is provided on the arc-shaped plate A2, and a sliding rod 10 is provided in the sliding groove 202. The flexible clamping assembly includes an arc-shaped seat 4 and a buffer pad 5. Each arc-shaped seat 4 is connected to the concave surface of the arc-shaped plate A2, and each buffer pad 5 is detachably mounted on the arc-shaped seat 4. The locking assembly includes a spring rod 6 and a locking block 7. A hinge is provided on the arc-shaped plate B3, and the arc-shaped plate A2 is connected to the movable end of the hinge. A slot 201, which is a T-shaped slot, is provided at the end of the arc-shaped plate A2 away from the hinge. A horizontal slot is provided at the end of the arc-shaped plate B3 away from the hinge. Both the spring rod 6 and the locking block 7 are located in the horizontal slot. The locking block 7 is slidably connected to the inner wall of the horizontal slot, and both ends of the spring rod 6 are connected to the inner wall of the locking block 7 and the horizontal slot, respectively. A lever 8, which is slidably connected to the arc-shaped plate B3, is provided on the locking block 7. The locking block 7 is an L-shaped locking block, and the horizontal end of the locking block 7 faces the same direction as the horizontal end of the T-shaped slot, so as to control the opening and closing of the arc-shaped plate A2 and the arc-shaped plate B3 through the locking assembly. A buffer plate 9 is disposed within a slide groove 202 and slidably connected to its inner wall. Two sliders B12 are symmetrically and slidably disposed within the slide groove 202. Slider B12 is slidably connected to a slide rod 10. Slider B12 is rotatably connected to a connecting rod 15. The ends of the connecting rods 15 on both sides away from the corresponding sides of slider B12 are rotatably connected to the buffer plate 9. The buffer assembly includes a spring 13. A slider A11 is disposed on the side of the two sliders B12 that is far apart from each other. Slider A11 is slidably connected to the slide rod 10. The spring 13 is sleeved on the slide rod 10, and the two ends of the spring 13 abut against the sides of slider A11 and slider B12 that are close to each other on the same side. A tension adjustment assembly is disposed within the slide groove 202 and includes a bidirectional lead screw A14. The bidirectional lead screw A14 is set in the slide groove 202 and rotatably connected to the arc plate A2. The bidirectional lead screw A14 passes through the slider A11 and the slider B12. The sliders A11 on both sides are respectively screwed to the corresponding ends of the bidirectional lead screw A14, and the slider B12 is slidably connected to the bidirectional lead screw A14.Two symmetrically arranged positioning plates 18 are slidably connected to the inner wall of the slide groove 202. The positioning plates 18 are slidably connected to the slide rod 10. The two positioning plates 18 are located between the sliders B12 on both sides. A bidirectional lead screw B19 is provided in the slide groove 202 and is rotatably connected to the arc plate A2. The bidirectional lead screw B19 passes through the positioning plates 18, and the two positioning plates 18 are respectively screwed to the corresponding ends of the bidirectional lead screw B19. The arc plate B3 is also provided with a buffer plate 9, a buffer assembly, and a tension adjustment assembly. The connection method of this structure is the same as the connection method of the corresponding parts on the arc plate A2.

[0030] In this embodiment, after the cable body 1 is properly installed, the cable body 1, with its insulation layer, metal armor layer, flexible protective layer, flame-retardant layer, and flame-retardant filler, effectively improves the impact resistance of the cable body through its layered protective structure. Furthermore, the optical fibers installed within the insulation layer, connected to optical sensors at both ends, can be used to detect whether the cable insulation layer is damaged. At the points where a buffer structure needs to be installed, the arc-shaped plates A2 and B3 are bypassed around the cable body 1. The arc-shaped plates A2 and B3 are adjusted so that one of the buffer plates 9 faces upwards. Then, the arc-shaped plates A2 and B3 are closed, at which point the locking block 7 automatically engages in the locking slot 201, completing the locking operation of the arc-shaped plates A2 and B3. Next, the bidirectional lead screw A14 is rotated, driving the sliders A11 on both sides to slide. Since the side of slider B12 closest to each other is blocked by the positioning plate 18, the spring 13 can only adaptively contract or expand, thus changing its tension on slider B12. When replacing the buffer plate 9, first rotate the double-acting lead screw B19. The double-acting lead screw B19 drives the positioning plates 18 on both sides to move closer together. Then rotate the double-acting lead screw A14. The double-acting lead screw A14 drives the sliders A11 on both sides to move closer together, causing the sliders B12 to move closer together. At this time, a clear operating gap appears between the buffer plate 9 and the arc plate A2, making it easier for workers to install and remove the buffer plate 9. In addition, after the buffer plate 9 is installed, the positioning plate 18 under this structure limits the sliding movement of the slider B12 to prevent the buffer plate 9 from falling out of the slide groove 202. When a rock falls, it hits the buffer plate 9, causing the buffer plate 9 to slide and push the slider B12 to slide through the connecting rod 15. The slider B12 slides and compresses the spring 13, which uses the spring 13 to buffer and protect the buffer plate 9.

[0031] Example 2

[0032] like Figure 3 and Figure 4 As shown, the mining cable with a buffer structure proposed in this utility model also includes a screw 17 compared to Embodiment 1. The end of the connecting rod 15 away from the slider B12 is rotatably connected to the adapter seat 16. Several limiting grooves 91 are provided on the concave surface of the buffer plate 9. Each adapter seat 16 is inserted into the limiting groove 91 on the corresponding side and connected to the buffer plate 9 by the screw 17.

[0033] In this embodiment, the buffer plate 9 is prone to deformation after being subjected to a large impact, and it needs to be replaced. When replacing it, simply loosen the screws 17 on the buffer plate 9, then remove the buffer plate 19. When installing, insert the adapter 16 into the corresponding limiting groove 91, and then tighten the screws 17.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A mining cable with a buffer structure, characterized in that, include The cable body (1) is provided with an annular sheath consisting of an arc plate A (2) and an arc plate B (3) on its outside. The arc plate A (2) and the arc plate B (3) are rotatably connected, and the concave surfaces of the arc plate A (2) and the arc plate B (3) are provided with flexible clamping components. The arc plate A (2) is provided with a sliding groove (202). A locking assembly is provided on the arc plate B (3) to control the opening and closing of the arc plate A (2) and the arc plate B (3); A buffer plate (9) is provided in the slide groove (202) and is slidably connected to its inner wall; Slider B(12), two sliders B(12) are symmetrically and slidably set in the slide groove (202). Slider B(12) is rotatably connected to the connecting rod (15). The ends of the connecting rods (15) on both sides away from the corresponding sliders B(12) are rotatably connected to the buffer plate (9). A buffer assembly is provided in the slide groove (202), and the movable end of the buffer assembly is connected to the slider B (12). And a tension adjustment component, which is set in the slide (202) and drives the fixed end of the buffer component.

2. A mining cable with a buffer structure according to claim 1, characterized in that, The cable body (1) includes an outermost insulation layer, a metal armor layer that is close to the inner wall of the shell, a flexible protective layer that is close to the inner wall of the metal armor layer, a flame-retardant layer that is close to the inner wall of the flexible protective layer, a wire core that is disposed inside the flame-retardant layer, and a flame-retardant filler for filling the gap between the wire core and the inner wall of the flame-retardant layer.

3. A mining cable with a buffer structure according to claim 2, characterized in that, Several optical fibers are arranged radially within the insulating layer, and each optical fiber is arranged in a ring array around its axis.

4. A mining cable with a buffer structure according to claim 1, characterized in that, The flexible clamping assembly includes an arc-shaped seat (4) and a buffer pad (5). Each arc-shaped seat (4) is connected to the concave surface of the arc-shaped plate A (2), and each buffer pad (5) is detachably mounted on the arc-shaped seat (4).

5. A mining cable with a buffer structure according to claim 1, characterized in that, The locking assembly includes a spring rod (6) and a locking block (7). A hinge is provided on the arc plate B (3). The arc plate A (2) is connected to the movable end of the hinge. A slot (201) is provided on the end of the arc plate A (2) away from the hinge. The slot (201) is a T-shaped slot. A horizontal slot is provided on the end of the arc plate B (3) away from the hinge. The spring rod (6) and the locking block (7) are both located in the horizontal slot. The locking block (7) is slidably connected to the inner wall of the horizontal slot. The two ends of the spring rod (6) are respectively connected to the inner wall of the locking block (7) and the horizontal slot. A lever plate (8) is provided on the locking block (7) and slidably connected to the arc plate B (3). The locking block (7) is an L-shaped locking block. The horizontal end of the locking block (7) is aligned with the horizontal end of the T-shaped slot.

6. A mining cable with a buffer structure according to claim 1, characterized in that, It also includes screws (17); the end of the connecting rod (15) away from the slider B (12) is rotatably connected to the adapter (16), and several limiting grooves (91) are provided on the concave surface of the buffer plate (9). Each adapter (16) is inserted into the limiting groove (91) on the corresponding side and connected to the buffer plate (9) by screws (17).

7. A mining cable with a buffer structure according to claim 1, characterized in that, A slide bar (10) is provided inside the slide groove (202), and the slider B (12) is slidably connected to the slide bar (10).

8. A mining cable with a buffer structure according to claim 7, characterized in that, The buffer assembly includes a spring (13), and a slider A (11) is provided on the side of the two sliders B (12) that are far apart from each other. The slider A (11) is slidably connected to the slide rod (10). The spring (13) is sleeved on the slide rod (10), and the two ends of the spring (13) abut against the side of the slider A (11) and slider B (12) that are close to each other on the same side.

9. A mining cable with a buffer structure according to claim 8, characterized in that, The tension adjustment assembly includes a bidirectional lead screw A (14); the bidirectional lead screw A (14) is set in the slide groove (202) and rotatably connected to the arc plate A (2), the bidirectional lead screw A (14) passes through the slider A (11) and the slider B (12), the two sliders A (11) are respectively screwed to the corresponding ends of the bidirectional lead screw A (14), and the slider B (12) is slidably connected to the bidirectional lead screw A (14).

10. A mining cable with a buffer structure according to claim 9, characterized in that, Two positioning plates (18) are symmetrically arranged in the groove (202) and slidably connected to its inner wall. The positioning plates (18) are slidably connected to the slide rod (10). The two positioning plates (18) are located between the sliders B (12) on both sides. A bidirectional screw B (19) is provided in the groove (202) and rotatably connected to the arc plate A (2). The bidirectional screw B (19) passes through the positioning plates (18), and the two positioning plates (18) are respectively spirally connected to the corresponding ends of the bidirectional screw B (19).

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