Coal mine support mine pressure detection device
By designing a detachable support structure and support frame, the problem of existing coal mine support pressure detection devices being unable to be supported during maintenance was solved, thereby improving the accuracy and safety of the detection results.
Patent Information
- Application Number
- CN202520208578.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The existing coal mine support pressure detection device is an integrated structure with the coal mine support, which means that the detection device cannot be effectively supported when it is maintained or replaced, posing a safety hazard.
A structure including a base plate, screw, nut, support plate and pressure detection mechanism is designed, which allows the pressure detection mechanism to be easily replaced and maintained. At the same time, the support stability is enhanced by components such as support frame, wedge pin and guide plate, which reduces the decrease in the accuracy of the test results and the occurrence of safety accidents.
It enables continuous support for the mine during the replacement or maintenance of testing facilities, improves the accuracy of testing results, and reduces the risk of safety hazards and data inaccuracies.
Smart Images
Figure CN223839150U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mine support technology, specifically a coal mine support pressure detection device. Background Technology
[0002] Coal mine support refers to the technical measures of applying various supports around the roadways to maintain the stability and safety of underground coal mine roadways. Its main purpose is to prevent the roof from collapsing, the sidewalls from shifting, and the floor from heaving, so as to ensure the normal operation of coal mining and transportation.
[0003] Coal mine support pressure detection refers to the real-time monitoring of the stress state of coal mine supports. By assessing the real-time stress state of coal mine supports, potential safety hazards can be detected in a timely manner, allowing for corresponding measures to be taken for reinforcement or repair, thus ensuring the safe operation of coal mine production. However, most existing coal mine support pressure detection devices are integrated with the coal mine supports. When the detection device malfunctions and needs maintenance or replacement, the supports cannot effectively support the coal mine, posing certain safety hazards.
[0004] Therefore, this utility model provides a coal mine support pressure detection device. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The coal mine support pressure detection device of this utility model includes a pair of base plates; a screw is fixedly connected to the top of the base plates; a pair of nuts are threadedly connected to the middle of the screw; a pair of support plates are slidably connected to the middle of the pair of screws; the pair of support plates are respectively located above the pair of nuts; a pressure detection mechanism is installed between the pair of support plates; a support rod is fixedly connected to the top of the upper support plate; through the above structure, the pressure detection mechanism can be easily replaced and maintained, and in this process, the mine can be continuously supported, reducing the risk caused by the loss of support of the mine.
[0007] Preferably, a pair of fixing rods are symmetrically fixed to the side wall of the support plate; a support frame is detachably installed in the middle of the fixing rods; an inclined groove is opened at the top of the support frame; an installation groove is opened in the side wall of the support frame; a wedge pin is detachably installed in the middle of the installation groove; through the above structure, the middle of the support plate below the pressure detection mechanism can be supported, reducing the occurrence of decreased accuracy of the pressure detection mechanism's detection results due to pressure deformation of the support plate, making the detection results more accurate, and reducing the occurrence of safety accidents caused by inaccurate data.
[0008] Preferably, a fixing ring is fixed to the top of the base plate; a membrane sleeve is fixed to the top of the fixing ring; a connecting ring is fixed to the top of the membrane sleeve; and two sets of hooks are fixed to the bottom of one of the support plates below. Through the above structure, the occurrence of dust in the mine adhering to the screw and causing the nut to get stuck is reduced.
[0009] Preferably, the side wall of the support frame is threaded with a fastening bolt; a sleeve is slidably connected to the middle of the fastening bolt; and a compression plate is fixedly connected to the middle of the sleeve. Through the above structure, the occurrence of the wedge pin sliding off-center and failing to stably support the support plate can be reduced, thereby reducing the occurrence of inaccurate mine pressure detection results caused by the deformation of the support plate under stress.
[0010] Preferably, a pair of guide plates are fixed to the top of the inclined groove; the pair of guide plates are respectively located on both sides of the wedge pin; with the above structure, the situation where the wedge pin shifts above the inclined groove, resulting in a decrease in the support effect, can be reduced, and the adjustment of the wedge pin can be made more effortless.
[0011] Preferably, both the bottom of the base plate and the support frame are fixedly connected with shock-absorbing pads; the shape of the shock-absorbing pads corresponds to the shape of the fitted base plate or support frame; through the above structure, the occurrence of mine vibration transmitted to the pressure detection mechanism can be reduced, which can both increase the support stability of the support rod for the mine and reduce the impact of vibration on the detection results of the pressure detection mechanism.
[0012] Preferably, the connecting ring is made of an elastic material and is circular in its natural state; the above structure can improve the speed at which the connecting ring separates from the hook and enhance the ease of use of the device.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The coal mine support pressure detection device of this utility model, through the setting of a base plate, screw, multiple nuts and a pair of support plates, can facilitate the replacement and maintenance of the pressure detection mechanism, and can continuously support the mine shaft in the process, reducing the risk of the mine shaft losing support.
[0015] 2. The coal mine support pressure detection device of this utility model, through the setting of fixed rod, support frame, inclined groove, installation groove and wedge pin, can support the middle part of the support plate below the pressure detection mechanism, reduce the occurrence of the decrease in the accuracy of the pressure detection results caused by the deformation of the support plate under pressure, make the detection results more accurate, and reduce the occurrence of safety accidents caused by inaccurate data. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the support plate in this utility model;
[0019] Figure 3 This is a schematic diagram of the support frame in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the membrane sleeve in this utility model.
[0021] In the diagram: 1. Base plate; 12. Screw; 13. Nut; 14. Support plate; 15. Pressure detection mechanism; 16. Support rod; 2. Fixing rod; 21. Support frame; 22. Inclined groove; 23. Mounting groove; 24. Wedge pin; 3. Fixing ring; 31. Diaphragm sleeve; 32. Connecting ring; 33. Hook; 4. Fastening bolt; 41. Sleeve; 42. Extrusion plate; 5. Guide plate; 6. Shock-absorbing pad. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figures 1 to 4As shown in the embodiment of this utility model, a coal mine support pressure detection device includes a pair of base plates 1; a screw 12 is fixedly connected to the top of the base plate 1; a pair of nuts 13 are threadedly connected to the middle of the screw 12; a pair of support plates 14 are slidably connected to the middle of the pair of screws 12; the pair of support plates 14 are respectively located above the pair of nuts 13; a pressure detection mechanism 15 is installed between the pair of support plates 14; a support rod 16 is fixedly connected to the top of the upper support plate 14; during operation, when the pressure detection mechanism 15 needs to be replaced or maintained, first rotate the upper pair of nuts 13 to move along the screw 12 to the bottom of the upper support plate 14, so that the upper pair of nuts 13 support the upper support plate 14 and the support rod 16 on the top of the support plate 14; then rotate the lower pair of nuts 13 to move the lower support plate 14 downwards, at which point the pressure detection mechanism 15 can be removed from between the pair of support plates 14, completing the replacement or maintenance of the pressure detection mechanism 15. The pressure detection mechanism 15 is then placed on the lower support plate 14. The lower pair of nuts 13 are then rotated to raise the pressure detection mechanism 15, causing it to press against the upper support plate 14 and support rod 16. As the lower pair of nuts 13 are continuously rotated, the pressure reading of the pressure detection mechanism 15 gradually increases. This pressure reading represents the force exerted by the support rod 16 on the mine shaft. Once the appropriate force is reached, the rotation of the lower pair of nuts 13 is stopped, and the upper pair of nuts 13 are rotated again to lower them a certain distance, providing sufficient space for the upper support plate 14 to move downwards. At this point, almost all the pressure on the support rod 16 is transmitted to the pressure detection mechanism 15, enabling it to accurately detect the bearing capacity of the support rod 16. This structure allows for easy replacement and maintenance of the pressure detection mechanism 15, while continuously supporting the mine shaft and reducing the risk of loss of support.
[0024] like Figures 1 to 3As shown, a pair of fixing rods 2 are symmetrically fixed to the sidewalls of the support plate 14; a support frame 21 is detachably installed in the middle of the fixing rod 2; a sloping groove 22 is provided on the top of the support frame 21; an installation groove 23 is provided on the sidewall of the support frame 21; a wedge pin 24 is detachably installed in the middle of the installation groove 23; during operation, after the pressure detection mechanism 15 is replaced or maintained, the pair of support frames 21 are inserted into the middle of the pair of fixing rods 2 respectively, and the bottom end of the support frame 21 is brought into contact with the ground, and then the wedge pin 24 is inserted from the middle of the support plate 14. The mounting slot 23 is inserted into the bottom of the lower support plate 14. At this time, the bottom slope of the wedge pin 24 will contact the surface of the inclined groove 22. The end of the wedge pin 24 is tapped with a tool to make the wedge pin 24 tightly inserted between the support frame 21 and the bottom of the lower support plate 14. Through the above structure, the middle part of the support plate 14 below the pressure detection mechanism 15 can be supported, reducing the occurrence of the decrease in the accuracy of the pressure detection mechanism 15 due to the deformation of the support plate 14 under pressure, making the detection results more accurate, and reducing the occurrence of safety accidents caused by inaccurate data.
[0025] like Figures 1 to 4 As shown, a fixing ring 3 is fixedly connected to the top of the base plate 1; a membrane sleeve 31 is fixedly connected to the top of the fixing ring 3; a connecting ring 32 is fixedly connected to the top of the membrane sleeve 31; two sets of hooks 33 are fixedly connected to the bottom of one of the support plates 14 below; during operation, after adjusting the lower nut 13, the connecting ring 32 is pulled upward and hooked by a set of hooks 33, so that the unfolded membrane sleeve 31 surrounds the middle of the screw 12, thereby reducing the occurrence of dust in the mine adhering to the screw 12 and causing the nut 13 to get stuck.
[0026] like Figures 1 to 3 As shown, the side wall of the support frame 21 is threaded with a fastening bolt 4; the middle of the fastening bolt 4 is slidably connected with a sleeve 41; the middle of the sleeve 41 is fixedly connected with a pressing plate 42; during operation, after the wedge pin 24 is inserted between the support plate 14 and the support frame 21 and adjusted, the sleeve 41 is rotated to press and fix the side wall of the wedge pin 24 with the pressing plate 42, so that the wedge pin 24 will not easily slide due to vibration. Through the above structure, the situation where the wedge pin 24 slides and deviates, resulting in the inability to stably support the support plate 14, can be reduced, thereby reducing the inaccuracy of the mine pressure detection results caused by the deformation of the support plate 14 under stress.
[0027] like Figures 1 to 3As shown, a pair of guide plates 5 are fixed to the top of the inclined groove 22; the pair of guide plates 5 are respectively located on both sides of the wedge pin 24; during operation, when the wedge pin 24 is inserted between the support plate 14 and the inclined groove 22 through the mounting groove 23, the pair of guide plates 5 can reduce the occurrence of the wedge pin 24 shifting above the inclined groove 22, which would reduce the support effect. At the same time, before installing the wedge pin 24, some dust can be sprinkled on the inclined groove 22. Due to the obstruction of the pair of guide plates 5, there will be more dust residue on the inclined groove 22, thereby reducing the friction between the bottom of the wedge pin 24 and the inclined groove 22 when the wedge pin 24 is inserted, making the adjustment of the wedge pin 24 easier. Through the above structure, the occurrence of the wedge pin 24 shifting above the inclined groove 22, which would reduce the support effect, can be reduced, and the adjustment of the wedge pin 24 can be made easier.
[0028] like Figures 1 to 3 As shown, both the bottom of the base plate 1 and the support frame 21 are fixed with shock-absorbing pads 6; the shape of the shock-absorbing pads 6 corresponds to the shape of the base plate 1 or the support frame 21 that are in contact with it; through the above structure, the occurrence of mine vibration transmitted to the pressure detection mechanism 15 can be reduced, which can both increase the support stability of the support rod 16 for the mine and reduce the impact of vibration on the detection results of the pressure detection mechanism 15.
[0029] like Figure 4 As shown, the connecting ring 32 is made of elastic material and is circular in its natural state. When it is necessary to remove the connecting ring 32 from the middle of a set of hooks 33, simply pinch the connecting ring 32 to deform it, and it can be quickly separated from the middle of the hooks 33. Through the above structure, the speed of separation between the connecting ring 32 and the hooks 33 can be increased, and the ease of use of the device can be improved.
[0030] When the pressure testing mechanism 15 needs to be replaced or maintained during operation, first rotate the upper pair of nuts 13 to move them along the screw 12 to the bottom of the upper support plate 14, so that the upper pair of nuts 13 support the upper support plate 14 and the support rod 16 on the top of the support plate 14. Then rotate the lower pair of nuts 13 to move the lower support plate 14 downwards. At this time, the pressure testing mechanism 15 can be removed from between the pair of support plates 14. After the replacement or maintenance of the pressure testing mechanism 15 is completed, place the pressure testing mechanism 15 on the lower support plate 14, and then rotate the lower pair of nuts 13 to raise the pressure testing mechanism 15, so that the pressure testing mechanism 15 presses against the upper support plate 14 and the support rod 16 on the top of the support plate 14. As the lower pair of nuts 13 are continuously rotated, the pressure reading of the pressure detection mechanism 15 gradually increases. This pressure reading represents the force exerted by the support rod 16 on the mine shaft. Once the appropriate force is reached, the rotation of the lower pair of nuts 13 is stopped, and the upper pair of nuts 13 are rotated again to lower them a certain distance, providing sufficient distance for the upper support plate 14 to move downwards. At this point, almost all the pressure on the support rod 16 is transmitted to the pressure detection mechanism 15, enabling the pressure detection mechanism 15 to accurately detect the bearing capacity of the support rod 16. After replacing or maintaining the pressure detection mechanism 15, a pair of support frames 21 are inserted into the middle of a pair of fixed rods 2, and... The bottom end of the support frame 21 contacts the ground. Then, the wedge pin 24 is inserted into the bottom of the lower support plate 14 through the mounting groove 23. At this time, the bottom inclined surface of the wedge pin 24 will contact the surface of the inclined groove 22. Use a tool to tap the end of the wedge pin 24 to make the wedge pin 24 tightly inserted between the support frame 21 and the bottom of the lower support plate 14. After adjusting the lower nut 13, pull the connecting ring 32 upward and use a set of hooks 33 to hook the connecting ring 32, so that the unfolded diaphragm sleeve 31 surrounds the middle of the screw 12. After inserting the wedge pin 24 between the support plate 14 and the support frame 21 and adjusting it, rotate the sleeve 41 to make the extrusion plate 42 extrude and fix the side wall of the wedge pin 24, so that the wedge pin 24 will not be affected by vibration. The wedge pin 24 slides easily and smoothly. When the wedge pin 24 is inserted between the support plate 14 and the inclined groove 22 through the mounting groove 23, the pair of guide plates 5 can reduce the occurrence of the wedge pin 24 shifting above the inclined groove 22, which would reduce the support effect. At the same time, some dust can be sprinkled on the inclined groove 22 before installing the wedge pin 24. Due to the obstruction of the pair of guide plates 5, there will be more dust residue on the inclined groove 22, thereby reducing the friction between the bottom of the wedge pin 24 and the inclined groove 22 when inserting the wedge pin 24, making the adjustment of the wedge pin 24 easier. When it is necessary to remove the connecting ring 32 from the middle of a set of hooks 33, simply pinch the connecting ring 32 to deform it, and it can be quickly detached from the middle of the hooks 33.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A coal mine support pressure detection device, comprising a pair of base plates (1); characterized in that: A screw (12) is fixedly connected to the top of the base plate (1); a pair of nuts (13) are threadedly connected to the middle of the screw (12); a pair of support plates (14) are slidably connected to the middle of the pair of screws (12); the pair of support plates (14) are respectively located above the pair of nuts (13); a pressure detection mechanism (15) is installed between the pair of support plates (14); a support rod (16) is fixedly connected to the top of the upper support plate (14).
2. The coal mine support pressure detection device according to claim 1, characterized in that: The sidewall of the support plate (14) is symmetrically provided with a pair of fixing rods (2); a support frame (21) is detachably installed in the middle of the fixing rod (2); a sloping groove (22) is provided on the top of the support frame (21); an installation groove (23) is provided on the sidewall of the support frame (21); a wedge pin (24) is detachably installed in the middle of the installation groove (23).
3. The coal mine support pressure detection device according to claim 1, characterized in that: A fixing ring (3) is fixed to the top of the base plate (1); a membrane sleeve (31) is fixed to the top of the fixing ring (3); a connecting ring (32) is fixed to the top of the membrane sleeve (31); and two sets of hooks (33) are fixed to the bottom of one of the support plates (14) below.
4. The coal mine support pressure detection device according to claim 2, characterized in that: The side wall of the support frame (21) is threaded with a fastening bolt (4); a sleeve (41) is slidably connected to the middle of the fastening bolt (4); and an extrusion plate (42) is fixedly connected to the middle of the sleeve (41).
5. A coal mine support pressure detection device according to claim 2, characterized in that: A pair of guide plates (5) are fixed to the top of the inclined groove (22); the pair of guide plates (5) are located on both sides of the wedge pin (24).
6. A coal mine support pressure detection device according to claim 2, characterized in that: Both the bottom of the base plate (1) and the support frame (21) are fixed with shock-absorbing pads (6); the shape of the shock-absorbing pads (6) corresponds to the shape of the base plate (1) or the support frame (21) that are in contact with it.
7. The coal mine support pressure detection device according to claim 3, characterized in that: The connecting ring (32) is made of elastic material and is circular in its natural state.