A cable clamp device for mining

Abstract

The application provides a mine cable clamp device. The mine cable clamp device comprises a clamp body and a positioning mechanism. The clamp body comprises a clamp pipe. The positioning mechanism comprises a first deflection group and a positioning seat group arranged in the inner wall of the clamp pipe in sequence along the axial direction. In the first deflection group, the first deflection seat is arranged opposite to the second deflection seat, the first deflection seat is rotationally connected to one end of the first rotating plate, the second deflection seat is rotationally connected to one end of the second rotating plate, the first rotating plate is connected to the second rotating plate between the other end of the first rotating plate and the other end of the second rotating plate, and the first rotating shaft is rotationally connected to the first roller. The positioning seat group comprises a first positioning seat and a second positioning seat. The first deflection seat and the first positioning seat are arranged along the axial direction; the second deflection seat and the second positioning seat are arranged along the axial direction; and the first rotating plate and the first deflection seat and the second rotating plate and the second deflection seat are both fixed with the hook spring. In the application, the secondary tensile deformation of the hook spring forms a safety gap between the cable and the surface of the wall, thereby reducing the risk of cable damage.

Description

Technical Field

[0001] This application relates to the field of power equipment, and more particularly to a mining cable clamp device. Background Technology

[0002] In the underground working environment of mines, power and signal cables need to be laid along the side walls or supports of the tunnel. Usually, metal or engineering plastic clamps are used to fasten the cables to the wall or support structure to ensure neat wiring and prevent dragging and displacement.

[0003] Existing cable clamp structures are mostly rigid ring clamps, only radially compressing and fixing the cable. They do not consider the axial pulling needs that may arise during subsequent use due to equipment movement, maintenance, or tension adjustments. When workers perform secondary pulling on the fixed cable (such as extension, retrieval, or rewiring), although the cable can slide to a limited extent within the clamp, the side in direct contact with the wall will continue to slide against the wall due to frictional resistance. Since the walls of underground tunnels are mostly rough concrete, shotcrete layers, or exposed rock surfaces with sand particles, protrusions, or burrs, the cable sheath is easily scratched, cut, or worn through during repeated pulling. Once the cable sheath is damaged, the high humidity and corrosive gases in the mine (such as...) Water can penetrate the insulation layer and even the conductor through the damaged area, causing short circuits, leakage, or breakdown faults. This not only significantly shortens the cable's service life but may also induce gas explosions or electric shock accidents.

[0004] Therefore, there is an urgent need for a new type of mining cable clamp device to solve the technical problems mentioned in the background section. Utility Model Content

[0005] This application provides a mining cable clamp device to solve the problem of cable sheath wear when pulling a fixed cable for the second time. It enables low-resistance suspended movement of the cable and greatly extends the service life of the cable in harsh environments.

[0006] This application provides a mining cable clamp device, comprising:

[0007] The clamp body, including the clamp tube;

[0008] The positioning mechanism includes a first deflection group and a positioning seat group arranged sequentially along the axial direction on the inner wall of the hoop tube;

[0009] The first deflection assembly includes a first deflection seat, a second deflection seat, a first rotating plate, a second rotating plate, a first rotating shaft, and a first roller. The first deflection seat and the second deflection seat are arranged opposite to each other. The first deflection seat is rotatably connected to one end of the first rotating plate, and the second deflection seat is rotatably connected to one end of the second rotating plate. The other end of the first rotating plate and the other end of the second rotating plate are connected to the first rotating shaft, and the first roller is rotatably connected to the first rotating shaft.

[0010] The positioning seat assembly includes a first positioning seat and a second positioning seat; the first deflection seat and the first positioning seat are arranged along the axial direction; the second deflection seat and the second positioning seat are arranged along the axial direction.

[0011] Hook springs are fixed between the first rotating plate and the first deflection seat, and between the second rotating plate and the second deflection seat.

[0012] In one possible design of a mining cable clamp device, the positioning mechanism further includes a second deflection group disposed on the inner wall of the clamp tube, the second deflection group being disposed opposite to the first deflection group on both sides of the positioning seat group;

[0013] The second deflection group includes a third deflection seat, a fourth deflection seat, a third rotating plate, a fourth rotating plate, a second rotating shaft, and a second roller. The third deflection seat and the fourth deflection seat are arranged opposite to each other. The third deflection seat is rotatably connected to one end of the third rotating plate, and the fourth deflection seat is rotatably connected to one end of the fourth rotating plate. The other end of the third rotating plate and the other end of the fourth rotating plate are connected to the second rotating shaft, and the second roller is rotatably connected to the second rotating shaft.

[0014] The first positioning seat and the third deflection seat are arranged along the axial direction; the second positioning seat and the fourth deflection seat are arranged along the axial direction.

[0015] The hook spring is fixed between the third rotating plate and the third deflection seat, and between the fourth rotating plate and the fourth deflection seat.

[0016] In a possible design of a mining cable clamp device, the first deflector, the second deflector, the third deflector and the fourth deflector have the same structure, each including a support, an ear plate, a rotating hole and a central shaft;

[0017] The support is fixed to the inner wall of the hoop tube. Two ear plates are symmetrically fixed to the upper end of the support. A rotating hole is coaxially opened between the ear plates, and the central shaft is connected inside the rotating hole.

[0018] The central shaft of the first deflector is rotatably connected to one end of the first rotating plate; the central shaft of the second deflector is rotatably connected to one end of the second rotating plate; the central shaft of the third deflector is rotatably connected to one end of the third rotating plate; and the central shaft of the fourth deflector is rotatably connected to one end of the fourth rotating plate.

[0019] In a possible design of a mining cable clamp device, the first positioning seat and the second positioning seat have the same structure, both including a base, a shaft and a mounting hole;

[0020] The base is fixed to the inner wall of the hoop tube, and the shaft is fixedly connected to the base. Two mounting holes are opened in the middle of the shaft.

[0021] The hook spring is fixed inside the mounting hole.

[0022] In a possible design of a mining cable clamp device, the upper ends of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are all provided with upper through holes.

[0023] The upper through hole of the first rotating plate and the upper through hole of the second rotating plate are connected to both ends of the first rotating shaft; the upper through hole of the third rotating plate and the upper through hole of the fourth rotating plate are connected to both ends of the second rotating shaft.

[0024] In a possible design of a mining cable clamp device, a central through hole is provided in the middle area of ​​the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate.

[0025] The hook spring is fixed between the central through hole of the first rotating plate and one of the mounting holes of the first positioning seat; the hook spring is fixed between the central through hole of the second rotating plate and one of the mounting holes of the second positioning seat; the hook spring is fixed between the central through hole of the third rotating plate and the other mounting hole of the first positioning seat; and the hook spring is fixed between the central through hole of the fourth rotating plate and the other mounting hole of the second positioning seat.

[0026] In one possible design of a mining cable clamp device, the lower ends of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are all provided with through holes.

[0027] The lower through hole of the first rotating plate passes through the central axis of the first deflection seat; the lower through hole of the second rotating plate passes through the central axis of the second deflection seat; the lower through hole of the third rotating plate passes through the central axis of the third deflection seat; and the lower through hole of the fourth rotating plate passes through the central axis of the fourth deflection seat.

[0028] In one possible design of a mining cable clamp device, the clamp body further includes a plurality of support plates arranged radially on the outer wall of the clamp tube. Each support plate has a positioning hole, an anchor rod passes through each positioning hole, a screw rod passes through each anchor rod, and a locking nut is connected to each screw rod.

[0029] Beneficial effects:

[0030] This invention utilizes a secondary tensile deformation mechanism of a hook spring. When workers pull the cable, the spring's elasticity causes the cable to rise as a whole, forcibly disengaging its bottom from the sandy, protruding, or burr-covered surface of the mine wall and creating a safe gap. This transforms the traditional high-resistance sliding friction of the cable wall into low-resistance suspended movement, reducing the risk of the cable's outer sheath being scratched, cut, or worn through due to repeated pulling. It also cuts off the pathways for high-humidity, corrosive gases, and water to penetrate the insulation layer through damaged areas, significantly reducing the probability of catastrophic accidents such as short circuits, leakage, and even gas explosions, ensuring personal safety, and greatly extending the cable's service life in harsh environments. Furthermore, this structure allows for easy cable extension, retrieval, or rewiring without disassembling the clamps, providing a smooth, low-friction guiding function, greatly improving the efficiency and safety of mine power supply system maintenance and repair.

[0031] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the assembly structure of the fixing mechanism and the positioning mechanism in this utility model;

[0035] Figure 3 This is a schematic diagram of the positioning mechanism in this utility model;

[0036] Figure 4 This is a schematic diagram of the deflection seat in this utility model;

[0037] Figure 5 This is a schematic diagram of the positioning seat in this utility model;

[0038] Figure 6 This is a schematic diagram of the transfer plate of this utility model.

[0039] Explanation of reference numerals in the attached drawings: 1. Hoop tube; 2. First deflection seat; 21. Support; 22. Ear plate; 23. Rotary hole; 24. Central shaft; 3. Second deflection seat; 4. First rotating plate; 41. Upper through hole; 42. Middle through hole; 43. Lower through hole; 5. Second rotating plate; 6. First rotating shaft; 7. First roller; 8. First positioning seat; 81. Base; 82. Shaft; 83. Mounting hole; 9. Second positioning seat; 10. Hook spring; 11. Third deflection seat; 12. Fourth deflection seat; 13. Third rotating plate; 14. Fourth rotating plate; 15. Second rotating shaft; 16. Second roller; 17. Support plate; 171. Positioning hole; 18. Anchor bolt; 19. Screw; 20. Locking nut. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0042] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0047] Figures 1-6A mining cable clamp device provided in this application includes a clamp body and a positioning mechanism. The clamp body includes a clamp tube 1. The positioning mechanism includes a first deflection group and a positioning seat group arranged axially along the inner wall of the clamp tube 1. The first deflection group includes a first deflection seat 2, a second deflection seat 3, a first rotating plate 4, a second rotating plate 5, a first rotating shaft 6, and a first roller 7. The first deflection seat 2 and the second deflection seat 3 are arranged opposite to each other. The first deflection seat 2 is rotatably connected to one end of the first rotating plate 4, and the second deflection seat 3 is rotatably connected to one end of the second rotating plate 5. The other end of the first rotating plate 4 and the other end of the second rotating plate 5 are connected to the first rotating shaft 6, and the first roller 7 is rotatably connected to the first rotating shaft 6. The positioning seat group includes a first positioning seat 8 and a second positioning seat 9. The first deflection seat 2 and the first positioning seat 8 are arranged axially; the second deflection seat 3 and the second positioning seat 9 are arranged axially. Hook springs 10 are fixed between the first rotating plate 4 and the first deflection seat 2, and between the second rotating plate 5 and the second deflection seat 3.

[0048] Using the above technical solution, when positioning and installing the cable, the cable is first embedded in the circumferential groove of the first roller 7, so that the outer wall of the cable abuts against the bottom surface of the groove. Then, the operator pushes the clamp tube 1 towards the side closer to the mine wall. During this process, the first rotating plate 4 rotates counterclockwise around the first deflection seat 2 and the second rotating plate 5 rotates counterclockwise around the second deflection seat 3. The hook spring 10 connecting the first rotating plate 4 and the first positioning seat 8, and connecting the second rotating plate 5 and the second positioning seat 9, is elastically stretched under tension. When the end face of the clamp tube 1 is completely in contact with the surface of the mine wall, the clamp body is firmly locked to the wall, completing the initial fixation.

[0049] When subsequent operations require dragging the cable (such as maintenance pull-out or length adjustment), the workers pull the cable away from the wall. At this time, the cable drives the first roller 7 and the connected structure to move. That is, the first rotating plate 4 continues to rotate counterclockwise around the first deflection seat 2 and the second rotating plate 5 continues to rotate counterclockwise around the second deflection seat 3, forcing the hook spring 10 to undergo secondary tensile deformation. The cable is lifted as a whole, so that the bottom of the cable is separated from the rough mine wall surface and a certain safety gap is formed, thereby realizing the axial movement of the cable in a suspended state.

[0050] Based on the aforementioned technical solution, the secondary tensile deformation mechanism of the hook spring 10 enables the cable to maintain an elastic suspension state during axial pulling, effectively solving the technical problem of direct friction between the cable and the rough tunnel wall in existing technologies. Specifically, when workers pull the cable, the elastic force of the hook spring 10 causes the cable to lift as a whole, forcibly separating its bottom from the surface of the mine wall covered with sand, protrusions, or burrs, and forming a safe gap. This transforms the traditional high-resistance sliding friction of the cable wall into low-resistance suspended movement, reducing the risk of the cable sheath being scratched, cut, or worn through due to repeated pulling. It also cuts off the path for high humidity, corrosive gases, and water to penetrate the insulation layer through the damaged area, significantly reducing the probability of serious accidents such as short circuits, leakage, and even gas explosions, ensuring personal safety, and greatly extending the service life of the cable in harsh environments. At the same time, this structure allows for easy extension, retrieval, or rewiring of the cable without disassembling the clamp body, providing a smooth, low-friction guiding function, greatly improving the efficiency and safety of mine power supply system maintenance and repair.

[0051] Preferably, the slot on the first roller 7 adopts a smooth arc transition design, mainly based on considerations of mechanical protection and smooth movement. On the one hand, the arc-shaped slot surface can perfectly fit the outer contour of the circular cable, transforming the traditional point contact or line contact into surface contact, avoiding the crushing of the cable sheath or permanent deformation caused by local stress concentration; on the other hand, the smooth transition surface eliminates sharp edges, providing a low-friction rolling or sliding guide surface when the cable is axially pulled or radially fine-tuned, preventing the cable from being scratched by the slot edge during movement.

[0052] In addition, the clamp 1 can adopt a C-shaped arc structure design. On the one hand, the C-shaped opening structure allows the clamp 1 to be directly snapped onto the positioning mechanism from the side, without having to insert the cable from the head end, which greatly simplifies the installation and disassembly process in narrow tunnel spaces and improves construction efficiency. On the other hand, the arc-shaped geometric configuration conforms to the mechanical principle of arched force distribution. When subjected to external impact or internal tension, it can evenly distribute the load to the entire pipe wall, which has higher bending stiffness and deformation resistance compared to the straight plate structure. In addition, the C-shaped curvature usually matches the curvature of the mine tunnel sidewall or the shape of the support, increasing the contact area with the wall and forming a more stable grip, preventing the clamp from loosening or slipping under long-term vibration.

[0053] In one possible implementation, the positioning mechanism further includes a second deflection group disposed on the inner wall of the clamp tube 1, which is disposed opposite to the first deflection group on both sides of the positioning seat group. The second deflection group includes a third deflection seat 11, a fourth deflection seat 12, a third rotating plate 13, a fourth rotating plate 14, a second rotating shaft 15, and a second roller 16. The third deflection seat 11 and the fourth deflection seat 12 are disposed opposite to each other. The third deflection seat 11 is rotatably connected to one end of the third rotating plate 13, and the fourth deflection seat 12 is rotatably connected to one end of the fourth rotating plate 14. The other end of the third rotating plate 13 and the other end of the fourth rotating plate 14 are connected to the second rotating shaft 15, and the second roller 16 is rotatably connected to the second rotating shaft 15. The first positioning seat 8 and the third deflection seat 11 are arranged axially; the second positioning seat 9 and the fourth deflection seat 12 are arranged axially. Hook springs 10 are fixed between the third rotating plate 13 and the third deflection seat 11, and between the fourth rotating plate 14 and the fourth deflection seat 12.

[0054] Optionally, the first roller 7 and the second roller 16 have the same structure, and their slots adopt a smooth arc transition design to protect the cable sheath and reduce the risk of the cable being scratched during movement.

[0055] Using the above technical solution, a double-sided symmetrical linkage support structure is constructed by setting two sets of deflection groups. When the cable is positioned and installed, the outer wall of the cable simultaneously comes into contact with the circumferential slots of the first roller 7 and the second roller 16 on both sides; then the clamp 1 is pushed towards the side closer to the mine wall. At this time, the first rotating plate 4 rotates counterclockwise around the first deflection seat 2, the second rotating plate 5 rotates counterclockwise around the second deflection seat 3, the third rotating plate 13 rotates clockwise around the third deflection seat 11, and the fourth rotating plate 14 rotates clockwise around the fourth deflection seat 12, causing the hook springs 10 on both sides to undergo tensile deformation simultaneously; until the clamp 1 is tightly attached to the wall and fixed, the cable is stably clamped in the enclosed space formed by the first roller 7, the second roller 16 and the wall.

[0056] When the cable needs to be dragged, the worker pulls the cable away from the wall. The cable drives the rotating plates on both sides, the first roller 7 and the second roller 16 to move synchronously, which forces the hook springs 10 on both sides to be stretched twice at the same time. The combined force of the hook springs 10 on both sides is used to lift the cable as a whole smoothly, so that the bottom and sides of the cable are separated from the rough wall surface to a certain extent, forming a suspension gap, thereby realizing the low-resistance axial movement of the cable in a bidirectional wrapped state.

[0057] Specifically, the structure employs a double-sided symmetrical addition of a third rotating plate 13, a fourth rotating plate 14, and a second roller 16. Compared to single-sided support, the double-sided rollers form a multi-point limiting guide channel, effectively limiting the risk of radial runout, lateral deviation, or cable detachment from the grooves of the first roller 7 and the second roller 16 during axial pulling, ensuring that the cable always moves smoothly along the predetermined trajectory. Simultaneously, the synergistic effect of the hook springs 10 on both sides provides a more balanced elastic restoring force, allowing the cable to maintain a near-horizontal posture when lifted away from the wall, reducing tilting friction caused by uneven force on one side, and further ensuring the isolation effect between the cable and the rough wall surface.

[0058] In one possible implementation, the first deflector 2, the second deflector 3, the third deflector 11, and the fourth deflector 12 have identical structures, each including a support 21, ear plates 22, rotating holes 23, and a central shaft 24. The support 21 is fixed to the inner wall of the clamp tube 1. Two ear plates 22 are symmetrically fixed to the upper end of the support 21, and rotating holes 23 are coaxially formed between the ear plates 22, with the central shaft 24 connected within the rotating holes 23. The central shaft 24 of the first deflector 2 is rotatably connected to one end of the first rotating plate 4; the central shaft 24 of the second deflector 3 is rotatably connected to one end of the second rotating plate 5; the central shaft 24 of the third deflector 11 is rotatably connected to one end of the third rotating plate 13; and the central shaft 24 of the fourth deflector 12 is rotatably connected to one end of the fourth rotating plate 14.

[0059] In the above scheme, the structure of symmetrically clamping the end of the rotating plate with double ear plates is adopted. In the harsh vibration environment of underground mines or when the cable is subjected to large drag force, the double ear plates can effectively prevent the rotating plate from tilting, ensuring the long-term reliability of the transmission mechanism. Compared with single-point support or single-sided cantilever structure, it can effectively enhance the bending moment resistance and shear resistance of the connection.

[0060] Furthermore, the central shaft 24 passes through the rotating hole 23 formed by the two ear plates 22, constituting a standard rotating pair. This coaxial constraint ensures that the trajectory of each rotating plate is controllable during rotation, eliminating swaying caused by excessive gaps. The smooth rotation of each rotating plate around the central shaft 24 ensures that the cable is subjected to uniform force during lifting or resetting, avoiding localized stress concentration or sheath damage to the cable caused by mechanism jamming.

[0061] In one possible implementation, the first positioning seat 8 and the second positioning seat 9 have identical structures, each including a base 81, a shaft 82, and mounting holes 83. The base 81 is fixed to the inner wall of the clamp tube 1, and the shaft 82 is fixedly connected to the base 81. Two mounting holes 83 are formed in the middle of the shaft 82. A hook spring 10 is fixed in the mounting hole 83.

[0062] Based on the above technical solution, the base 81 fixed to the inner wall of the hoop tube 1 is used as a static support foundation. The hook spring 10 mounting platform is constructed through the shaft 82, and two independent through-hole anchor points are formed by the two mounting holes 83 opened axially through the shaft 82.

[0063] During operation, one end of the hook spring 10 is directly embedded and fixed in the mounting hole 83, while the other end is connected to the corresponding rotating plate (first rotating plate 4, second rotating plate 5, third rotating plate 13, or fourth rotating plate 14). When each rotating plate rotates due to cable dragging, the tension acts directly on the hook spring 10, causing it to stretch. Compared to traditional surface hooks or welding fixation, this structure effectively prevents the end of the hook spring 10 from accidentally detaching and hooking surrounding cables during strong vibrations and rebounds in underground mines, thus preventing damage to the cable sheath.

[0064] In one possible implementation, the upper ends of the first rotating plate 4, the second rotating plate 5, the third rotating plate 13, and the fourth rotating plate 14 are all provided with upper through holes 41. The upper through holes 41 of the first rotating plate 4 and the second rotating plate 5 are connected to the two ends of the first rotating shaft 6; the upper through holes 41 of the third rotating plate 13 and the fourth rotating plate 14 are connected to the two ends of the second rotating shaft 15.

[0065] In the above technical solution, the upper through holes 41 at the upper ends of the first rotating plate 4 and the second rotating plate 5 are used to install the first rotating shaft 6, and the upper through holes 41 at the upper ends of the third rotating plate 13 and the fourth rotating plate 14 are used to install the second rotating shaft 15. A first roller 7 is installed on the first rotating shaft 6, and a second roller 16 is installed on the second rotating shaft 15, thus forming the working execution end. This position is furthest from the lower fulcrum, forming a relatively long lever arm, allowing the first roller 7 and the second roller 16 to respond to changes in the cable's position with the maximum stroke range, while ensuring that each roller can deeply wrap around the cable.

[0066] In one possible implementation, a central through hole 42 is provided in the middle area of ​​the first rotating plate 4, the second rotating plate 5, the third rotating plate 13, and the fourth rotating plate 14. A hook spring 10 is fixed between the central through hole 42 of the first rotating plate 4 and one of the mounting holes 83 of the first positioning seat 8; a hook spring 10 is fixed between the central through hole 42 of the second rotating plate 5 and one of the mounting holes 83 of the second positioning seat 9; a hook spring 10 is fixed between the central through hole 42 of the third rotating plate 13 and the other mounting hole 83 of the first positioning seat 8; and a hook spring 10 is fixed between the central through hole 42 of the fourth rotating plate 14 and the other mounting hole 83 of the second positioning seat 9.

[0067] In the above technical solution, the central through hole 42 located between the bottom and top of each rotating plate serves as a force-bearing connection point, used to fix one end of the hook spring 10 (the other end is fixed on the corresponding positioning seat). When each rotating plate rotates around the lower fulcrum, the central through hole 42 generates an arc motion, stretching or compressing the hook spring 10, and using the lever principle to convert the restoring force of the hook spring 10 into a lifting force or clamping force on the cable.

[0068] In one possible implementation, the lower ends of the first rotating plate 4, the second rotating plate 5, the third rotating plate 13, and the fourth rotating plate 14 are all provided with through holes 43. The through hole 43 of the first rotating plate 4 passes through the central shaft 24 of the first deflector 2; the through hole 43 of the second rotating plate 5 passes through the central shaft 24 of the second deflector 3; the through hole 43 of the third rotating plate 13 passes through the central shaft 24 of the third deflector 11; and the through hole 43 of the fourth rotating plate 14 passes through the central shaft 24 of the fourth deflector 12.

[0069] Using the above technical solution, the bottom through-hole 43 of each rotating plate is sleeved on the central shaft 24 of the corresponding deflection seat, forming the rotation pivot of each rotating plate. When the cable is under force, each rotating plate swings around the corresponding central shaft 24 as the center, converting the radial displacement of the cable into angular displacement.

[0070] It should be noted that the four rotating plates have the same structure (first rotating plate 4 or second rotating plate 5 or third rotating plate 13 or fourth rotating plate 14). Through the cooperation of each through hole, two sets of symmetrical double rocker mechanisms are constructed to clamp (position) or support the movement of the cable.

[0071] Based on the above technical solution, by opening three functional holes on a single rotating plate, the rotating joint, spring hanging point and roller mounting position are integrated into one unit, eliminating the additional connecting parts (such as independent connecting rods, lugs or welded brackets) required in the traditional structure, significantly reducing the number of parts, reducing the overall weight and manufacturing cost of the device, and reducing the cumulative error caused by the assembly of multiple parts.

[0072] In one possible implementation, the clamp body also includes a plurality of support plates 17 arranged radially on the outer wall of the clamp tube 1. Each support plate 17 has a positioning hole 171, an anchor rod 18 passes through the positioning hole 171, a screw rod 19 passes through the anchor rod 18, and a locking nut 20 is connected to the screw rod 19.

[0073] Based on the above technical solution, the clamp is formed by multiple support plates 17 arranged radially along the outer wall of the clamp tube 1 to form a reinforcing rib structure, which not only increases the contact area and structural rigidity of the outer wall of the clamp tube 1, but also serves as the base for the installation of the anchor rod 18.

[0074] The positioning hole 171 penetrating the support plate 17 plays a precise guiding role, ensuring that the anchor rod 18 passes through the positioning hole 171 and penetrates deep into the surrounding rock of the roadway. Then, by utilizing the friction, adhesion or mechanical interlocking force between the anchor rod 18 and the rock mass, the external load is transferred to the deep and stable rock strata, providing the main pull-out and shear resistance. The screw 19 is inserted into the anchor rod 18 (or as an extension of the anchor rod 18), with its end extending out of the support plate 17. By rotating the locking nut 20, the rotational motion is converted into axial linear motion using the helical transmission principle of the threaded pair, generating axial preload. The support plate 17 is then pressed tightly against the roadway wall, thereby forming a rigid connection between the clamp 1 and the wall, eliminating installation gaps.

[0075] The system employs a multi-locking structure consisting of anchor bolts 18, screws 19, and locking nuts 20, along with the radial distribution of support plates 17, forming a stable triangular or multi-point support system. This effectively resists loosening caused by high-frequency vibration, prevents the clamp body from slipping or falling off during long-term service, and ensures the safety of the cable positioning system.

[0076] It should be added that the surfaces of all components of the clamp body and positioning mechanism are coated with waterproof material, forming a dense and continuous physical isolation film. This effectively blocks the direct contact between cleaning fluid, condensate, or humid air and the metal substrate, significantly improving the overall insulation performance of the clamp and ensuring the locking reliability of the anchoring system under long-term hot and cold cycles and alternating wet and dry environments.

[0077] In practice, when positioning and installing the cable, the cable is first embedded into the circumferential grooves of the first roller 7 and the second roller 16, so that the outer wall of the cable abuts against the bottom surface of the groove. Then, the operator pushes the clamp 1 towards the side closer to the mine wall. During this process, the first rotating plate 4 rotates counterclockwise around the first deflection seat 2, the second rotating plate 5 rotates counterclockwise around the second deflection seat 3, the third rotating plate 13 rotates clockwise around the third deflection seat 11, and the fourth rotating plate 14 rotates clockwise around the fourth deflection seat 12. The hook springs 10 connecting the first rotating plate 4 and the first positioning seat 8, the second rotating plate 5 and the second positioning seat 9, the third rotating plate 13 and the first positioning seat 8, and the fourth rotating plate 14 and the second positioning seat 9 are elastically stretched under tension. When the end face of the clamp 1 is completely in contact with the surface of the mine wall, the clamp body is firmly locked to the wall, completing the initial fixation.

[0078] When subsequent operations require dragging the cable (such as maintenance pull or length adjustment), the workers pull the cable away from the wall. At this time, the cable drives the first roller 7, the second roller 16 and the connected structure to move, forcing the hook spring 10 to undergo secondary tensile deformation. The cable is lifted as a whole, so that the bottom of the cable is separated from the rough mine wall surface and a certain safety gap is formed.

[0079] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A mining cable clamp device, characterized in that, include: The clamp body, including the clamp tube; The positioning mechanism includes a first deflection group and a positioning seat group arranged sequentially along the axial direction on the inner wall of the hoop tube; The first deflection assembly includes a first deflection seat, a second deflection seat, a first rotating plate, a second rotating plate, a first rotating shaft, and a first roller. The first deflection seat and the second deflection seat are arranged opposite to each other. The first deflection seat is rotatably connected to one end of the first rotating plate, and the second deflection seat is rotatably connected to one end of the second rotating plate. The other end of the first rotating plate and the other end of the second rotating plate are connected to the first rotating shaft, and the first roller is rotatably connected to the first rotating shaft. The positioning seat assembly includes a first positioning seat and a second positioning seat; the first deflection seat and the first positioning seat are arranged along the axial direction; the second deflection seat and the second positioning seat are arranged along the axial direction. Hook springs are fixed between the first rotating plate and the first deflection seat, and between the second rotating plate and the second deflection seat.

2. The mining cable clamp device according to claim 1, characterized in that, The positioning mechanism further includes a second deflection group disposed on the inner wall of the clamp tube, the second deflection group being disposed opposite to the first deflection group on both sides of the positioning seat group; The second deflection group includes a third deflection seat, a fourth deflection seat, a third rotating plate, a fourth rotating plate, a second rotating shaft, and a second roller. The third deflection seat and the fourth deflection seat are arranged opposite to each other. The third deflection seat is rotatably connected to one end of the third rotating plate, and the fourth deflection seat is rotatably connected to one end of the fourth rotating plate. The other end of the third rotating plate and the other end of the fourth rotating plate are connected to the second rotating shaft, and the second roller is rotatably connected to the second rotating shaft. The first positioning seat and the third deflection seat are arranged along the axial direction; the second positioning seat and the fourth deflection seat are arranged along the axial direction. The hook spring is fixed between the third rotating plate and the third deflection seat, and between the fourth rotating plate and the fourth deflection seat.

3. A mining cable clamp device according to claim 2, characterized in that, The first deflector, the second deflector, the third deflector and the fourth deflector have the same structure, each including a support, an ear plate, a rotating hole and a central shaft; The support is fixed to the inner wall of the hoop tube. Two ear plates are symmetrically fixed to the upper end of the support. A rotating hole is coaxially opened between the ear plates, and the central shaft is connected inside the rotating hole. The central shaft of the first deflector is rotatably connected to one end of the first rotating plate; the central shaft of the second deflector is rotatably connected to one end of the second rotating plate; the central shaft of the third deflector is rotatably connected to one end of the third rotating plate; and the central shaft of the fourth deflector is rotatably connected to one end of the fourth rotating plate.

4. A mining cable clamp device according to claim 3, characterized in that, The first positioning seat and the second positioning seat have the same structure, both including a base, a shaft and a mounting hole; The base is fixed to the inner wall of the hoop tube, and the shaft is fixedly connected to the base. Two mounting holes are opened in the middle of the shaft. The hook spring is fixed inside the mounting hole.

5. A mining cable clamp device according to claim 4, characterized in that, The upper ends of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are all provided with upper through holes; The upper through hole of the first rotating plate and the upper through hole of the second rotating plate are connected to both ends of the first rotating shaft; the upper through hole of the third rotating plate and the upper through hole of the fourth rotating plate are connected to both ends of the second rotating shaft.

6. A mining cable clamp device according to claim 5, characterized in that, The first, second, third, and fourth rotating plates all have a central through hole in their middle areas; The hook spring is fixed between the central through hole of the first rotating plate and one of the mounting holes of the first positioning seat; the hook spring is fixed between the central through hole of the second rotating plate and one of the mounting holes of the second positioning seat; the hook spring is fixed between the central through hole of the third rotating plate and the other mounting hole of the first positioning seat; and the hook spring is fixed between the central through hole of the fourth rotating plate and the other mounting hole of the second positioning seat.

7. A mining cable clamp device according to claim 4, characterized in that, The lower ends of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are all provided with through holes; The lower through hole of the first rotating plate passes through the central axis of the first deflection seat; the lower through hole of the second rotating plate passes through the central axis of the second deflection seat; the lower through hole of the third rotating plate passes through the central axis of the third deflection seat; and the lower through hole of the fourth rotating plate passes through the central axis of the fourth deflection seat.

8. A mining cable clamp device according to any one of claims 1-7, characterized in that, The clamp body also includes a plurality of support plates arranged radially on the outer wall of the clamp tube. Each support plate has a positioning hole, an anchor rod passes through each positioning hole, a screw rod passes through each anchor rod, and a locking nut is connected to each screw rod.

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