Coal mine support mine pressure monitoring device

Abstract

The utility model relates to the technical field of mine pressure monitoring devices, in particular to a coal mine support mine pressure monitoring device which comprises a containing disc, a rotary knob is rotationally installed on the side wall of the containing disc and fixedly connected with a ratchet wheel, a transmission assembly is arranged between the rotary knob and the ratchet wheel, and a take-up mechanism is arranged at the end, away from the rotary knob, of the transmission assembly and comprises a reciprocating lead screw. The reciprocating lead screw is in threaded connection with a sliding block, a positioning rod is arranged at the top end of the sliding block, a matching piece is arranged at the bottom of the sliding block, a sliding groove is formed in the inner wall of the storage disc, the matching piece is slidably installed in the sliding groove, and the storage disc communicates with a wire outlet. Through the cooperation of the knob, the transmission assembly, the reciprocating screw rod and the sliding block, the rotary knob is rotated to stably drive the reciprocating screw rod to rotate, so that the sliding block reciprocates along the reciprocating screw rod, the sliding groove is matched to support the sliding block to move, efficient and stable storage of the connecting line is achieved, and meanwhile the positioning rod limits the connecting line, so that the connecting line is more stable. Inconsistent tightness between turns of the coil is avoided, and stable circuit performance is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of mine pressure monitoring devices, specifically to a mine pressure monitoring device for coal mine support. Background Technology

[0002] Coal is an essential energy source for human production and life, and its mining mostly relies on underground mining operations. In coal mining operations, support devices are indispensable facilities to ensure the safety of miners. The main function of support devices is to support, reinforce and protect the surrounding underground environment. By monitoring the stress state and deformation of the support structure in real time, abnormalities in the support structure can be detected in time, such as insufficient support strength or support failure. This allows for early measures to be taken to reinforce or replace the support, effectively preventing roof collapses and ensuring the safety of miners.

[0003] A search revealed that utility model patent CN221481984U discloses a coal mine support pressure monitoring device. This device uses a storage tray to store the connecting wire. The connecting wire is passed through a socket, and a rotating rod is rotated to wind the wire around it. A clamping plate, pushed by a second spring, remains engaged with the teeth of a gear. When the gear rotates clockwise, the rotating rod also rotates clockwise, thus storing the connecting wire. The clockwise rotation of the gear pushes against the clamping plate, preventing the clamp from limiting the gear. Conversely, when the gear rotates counterclockwise, it is limited by the gear. Therefore, the rotating rod does not rotate back when storing the connecting wire, ensuring stable storage of the wire.

[0004] However, in actual use, when storing the cable, the coil turns may become uneven in tightness. The area near the center of the winding may become too tight due to repeated stress, while the edge area may be relatively loose. This unevenness will affect the electrical performance of the coil and reduce the circuit performance. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a coal mine support pressure monitoring device, which can effectively solve the problem that the coil turns are easily loose and tight when the cable is stored, resulting in a decrease in circuit performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a coal mine support pressure monitoring device, including a receiving tray. A knob is rotatably mounted on the side wall of the receiving tray. A ratchet is fixedly connected to the knob. A transmission assembly is provided between the knob and the ratchet. A wire take-up mechanism is provided at the end of the transmission assembly away from the knob. The wire take-up mechanism includes a reciprocating screw. A slider is threadedly connected to the reciprocating screw. A positioning rod is provided at the top of the slider. A mating part is provided at the bottom of the slider. A groove is opened on the inner wall of the receiving tray. The mating part is slidably installed inside the groove. The receiving tray is connected to a wire outlet. The ratchet is fixedly mounted on a rotating rod. One end of a connecting wire is movably connected to the rotating rod. The other end of the connecting wire is fixedly connected to a monitoring head.

[0008] Furthermore, the transmission assembly includes a set of transmission wheels sleeved on the knob, the transmission wheels being driven by a belt, the belt being driven by another set of transmission wheels, and the other set of transmission wheels being sleeved on a reciprocating lead screw.

[0009] Furthermore, a control lever is rotatably mounted on the inner wall of the storage tray, a connecting block is fixedly mounted on the bottom of the control lever, a stop block is fitted onto the connecting block, and a button is fixedly mounted on the end of the stop block away from the connecting block, and a reset spring is sleeved on the surface of the button.

[0010] Furthermore, a torsion spring is provided between the control lever and the storage tray, the lower end of the connecting block is inclined and the angle between the inclined surface and the horizontal plane is acute, the end of the abutting block near the connecting block is inclined and the angle between the inclined surface and the horizontal plane is obtuse, and a limit post is provided above the control lever, and the limit post is fixedly installed on the inner wall of the storage tray.

[0011] Furthermore, the inner wall of the storage tray is provided with a movable groove, and the abutting block is slidably installed inside the movable groove.

[0012] Furthermore, one end of the reset spring is fixedly mounted on the abutment block, and the other end of the reset spring is fixedly mounted on the movable groove.

[0013] Furthermore, the rotating rod has a socket on its surface, and a connecting wire is movably connected to the socket.

[0014] Furthermore, a protective pad is provided on the surface of the storage tray near the cable outlet.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] I. This utility model utilizes the cooperation of a knob, a transmission component, a reciprocating lead screw, and a slider. Rotating the knob can stably drive the reciprocating lead screw to rotate, causing the slider to reciprocate along the lead screw. The slider's movement is supported by a sliding groove, enabling efficient and stable storage of the connecting wire. At the same time, the positioning rod limits the connecting wire, preventing uneven tightness between coil turns and ensuring stable circuit performance.

[0017] II. This utility model ensures reliable locking of the ratchet by cooperating with the control lever and the ratchet. When it is necessary to reel in or unelute the line, press the button to push the stop block to rotate the control lever and release the ratchet lock. After the operation, the reset spring and torsion spring respectively reset the stop block and the control lever, and relock the ratchet. This can prevent misoperation and accidental unlocking, and can flexibly control the ratchet state to ensure stable operation of the device. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the coal mine support pressure monitoring device proposed in this utility model;

[0020] Figure 2 This is a cross-sectional plan view of the storage tray of this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the storage tray of this utility model;

[0023] Figure 5 This is a schematic diagram of the wire take-up mechanism of this utility model;

[0024] Figure 6 for Figure 4 Enlarged structural diagram at point B.

[0025] Reference numerals: 1. Storage tray; 2. Knob; 3. Cable outlet; 4. Connecting cable; 5. Monitoring head; 6. Protective pad; 7. Drive wheel; 8. Belt; 9. Ratchet; 10. Socket; 11. Limiting post; 12. Rotating rod; 13. Control rod; 14. Torsion spring; 15. Connecting block; 16. Abutting block; 17. Movable groove; 18. Button; 19. Return spring; 20. Slider; 21. Reciprocating lead screw; 22. Mating part; 23. Slide groove; 24. Positioning rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Coal mine support pressure monitoring device, refer to Appendix Figure 1 - Figure 6 The device includes a storage tray 1, a knob 2 rotatably mounted on the side wall of the storage tray 1, a ratchet 9 fixedly connected to the knob 2, a transmission assembly between the knob 2 and the ratchet 9, a winding mechanism at the end of the transmission assembly away from the knob 2, the winding mechanism including a reciprocating screw 21, a slider 20 threadedly connected to the reciprocating screw 21, a positioning rod 24 at the top of the slider 20, a mating part 22 at the bottom of the slider 20, a groove 23 opened on the inner wall of the storage tray 1, the mating part 22 slidably installed inside the groove 23, the storage tray 1 is connected to a cable outlet 3, the ratchet 9 is fixedly mounted on a rotating rod 12, one end of a connecting wire 4 is movably connected to the rotating rod 12, and the other end of the connecting wire 4 is fixedly connected to a monitoring head 5.

[0029] Furthermore, the transmission assembly includes a set of transmission wheels 7 sleeved on the knob 2, the transmission wheels 7 being driven by a belt 8, the belt 8 being driven by another set of transmission wheels 7, the other set of transmission wheels 7 being sleeved on a reciprocating screw 21, and both ends of the reciprocating screw 21 being rotatably mounted on the inner wall of the storage tray 1.

[0030] In the above technical solution, the connecting wire 4 is stored in the storage tray 1. Specifically, the connecting wire 4 passes through the outlet 3. During the storage process, the knob 2 is rotated, and the reciprocating screw 21 is rotated through the stable transmission of the transmission component. Through the fixed thread action between the screw and the slider 20, the slider 20 reciprocates along the reciprocating screw 24. During this process, the slide groove 23 provides support for the movement of the slider 20, further enhancing the overall stability of the device. The positioning rod 24 limits the connecting wire 4, avoiding uneven tightness between the turns of the connecting wire coil and improving circuit performance.

[0031] Furthermore, a control lever 13 is rotatably mounted on the inner wall of the storage tray 1. A connecting block 15 is fixedly mounted on the bottom of the control lever 13. A stop block 16 is fitted onto the connecting block 15. A button 18 is fixedly mounted on the end of the stop block 16 away from the connecting block 15. A reset spring 19 is sleeved on the surface of the button 18. A torsion spring 14 is provided between the control lever 13 and the storage tray 1. The lower end of the connecting block 15 is inclined, and the angle between the inclined surface and the horizontal plane is an acute angle. The end of the stop block 16 near the connecting block 15 is inclined, and the angle between the inclined surface and the horizontal plane is an obtuse angle. A limit post 11 is provided above the control lever 13. The limit post 11 is fixedly mounted on the inner wall of the storage tray 1. In the initial state, the control lever 13 is in a position that engages with the ratchet 9, ensuring reliable locking of the ratchet 9. At this time, the ratchet 9 can only rotate clockwise. The limit post 11 limits the control lever 13 to prevent the control lever 13 from rotating excessively and causing damage to the torsion spring 14.

[0032] It is worth noting that the inner wall of the storage tray 1 is provided with a movable groove 17. The abutment block 16 is slidably installed inside the movable groove 17. One end of the return spring 19 is fixedly installed on the abutment block 16, and the other end of the return spring 19 is fixedly installed on the movable groove 17. The movable groove 17 guides the sliding of the abutment block 16, ensuring that its movement trajectory is accurate and stable, reducing deviation, shaking and friction jamming, and realizing the unlocking and locking of the ratchet 9. The elastic force of the return spring 19 ensures that the abutment block 16 automatically resets after operation, maintaining the initial stable state of the device, and can also buffer external force interference and prevent misoperation and accidental unlocking.

[0033] In the above technical solution, when the operator presses button 18, the abutment block 16 will move under the action of external force, thereby pushing the control lever 13 to rotate, so as to release the lock on ratchet 9, allowing the knob 2 to rotate freely for winding or unwinding operations. After the operator releases button 18, the reset spring 19 can use its elastic restoring force to quickly pull the abutment block 16 back to its original position. As the abutment block 16 resets, the control lever 13 will also return to its initial position under the action of torsion spring 14, and re-lock ratchet 9.

[0034] The rotating rod 12 has a socket 10 on its surface, and a connecting wire 4 is movably connected to the socket 10. By inserting the connecting wire 4 and passing it completely through the socket 10, the connecting wire 4 is firmly fixed to the rotating rod 12, preventing the connecting wire 4 from falling off or loosening due to force, thereby ensuring that the monitoring signal can be transmitted stably and continuously.

[0035] In addition, a protective pad 6 is provided on the surface of the receiving tray 1 near the outlet 3. During the monitoring of mine pressure in coal mine support, the connecting line 4 needs to frequently enter and exit the outlet 3 of the receiving tray 1. The underground environment of the coal mine is complex, and the connecting line 4 may rub against the edge of the outlet 3 during the movement. The protective pad 6 is used to form a buffer layer between the connecting line 4 and the edge of the outlet 3 to reduce the wear of the outer sheath of the connecting line 4 and extend the service life of the connecting line 4.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coal mine support pressure monitoring device, comprising a receiving disc (1), characterized in that, A knob (2) is rotatably mounted on the side wall of the storage tray (1). A ratchet (9) is fixedly connected to the knob (2). A transmission assembly is provided between the knob (2) and the ratchet (9). A winding mechanism is provided at the end of the transmission assembly away from the knob (2). The winding mechanism includes a reciprocating screw (21). A slider (20) is threadedly connected to the reciprocating screw (21). A positioning rod (24) is provided at the top of the slider (20). A mating part (22) is provided at the bottom of the slider (20). A groove (23) is opened on the inner wall of the storage tray (1). The mating part (22) is slidably installed inside the groove (23). The storage tray (1) is connected to a cable outlet (3). The ratchet (9) is fixedly mounted on a rotating rod (12). One end of a connecting line (4) is movably connected to the rotating rod (12). The other end of the connecting line (4) is fixedly connected to a monitoring head (5).

2. The coal mine support mine pressure monitoring device according to claim 1, characterized in that, The transmission assembly includes a set of transmission wheels (7) sleeved on the knob (2), the transmission wheels (7) being connected to a belt (8), the belt (8) being connected to another set of transmission wheels (7), and the other set of transmission wheels (7) being sleeved on the reciprocating lead screw (21).

3. The coal mine support mine pressure monitoring device of claim 1, wherein, A control rod (13) is rotatably mounted on the inner wall of the storage tray (1). A connecting block (15) is fixedly mounted on the bottom of the control rod (13). A stop block (16) is fitted onto the connecting block (15). A button (18) is fixedly mounted on the end of the stop block (16) away from the connecting block (15). A reset spring (19) is sleeved on the surface of the button (18).

4. The coal mine support mine pressure monitoring device of claim 3, wherein, A torsion spring (14) is provided between the control rod (13) and the storage tray (1). The lower end of the connecting block (15) is inclined, and the angle between the inclined surface and the horizontal plane is an acute angle. The abutting block (16) is inclined near the end of the connecting block (15), and the angle between the inclined surface and the horizontal plane is an obtuse angle. A limit post (11) is provided above the control rod (13), and the limit post (11) is fixedly installed on the inner wall of the storage tray (1).

5. The coal mine support mine pressure monitoring device of claim 4, wherein, The inner wall of the storage tray (1) is provided with a movable groove (17), and the abutting block (16) is slidably installed inside the movable groove (17).

6. The coal mine support mine pressure monitoring device of claim 4, wherein, One end of the reset spring (19) is fixedly installed on the abutment block (16), and the other end of the reset spring (19) is fixedly installed on the movable groove (17).

7. The coal mine support pressure monitoring device according to claim 1, characterized in that, The rotating rod (12) has a socket (10) on its surface, and a connecting wire (4) is movably connected to the socket (10).

8. The coal mine support mine pressure monitoring device of claim 1, wherein, The storage tray (1) has a protective pad (6) on its surface near the cable outlet (3).

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