A roadway pressure detection device for isolated working faces
By designing a roadway pressure detection device with a pressure detection unit, the limitations of pressure detection on both sides of the roadway were solved, enabling effective detection of pressure on both sides of the roadway, reducing detection errors and collapse risks, and improving mining safety.
Patent Information
- Application Number
- CN202522509793.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-26
AI Technical Summary
Existing roadway pressure detection devices cannot effectively detect the pressure on both sides of the roadway, leading to an increased risk of roadway collapse and a limited detection range.
A roadway pressure detection device was designed, comprising a base, a symmetrically arranged base frame and a top frame. Pressure detection sections are provided on the upper and lower sides of the top frame. The transmission block and pressure sensor are connected by a ring frame and a U-shaped assembly block. Pressure detection is performed by using an arc-shaped block to fit tightly against the inner wall of the roadway. The stability and flexible adjustment of each component are ensured by fastening bolts.
It enables effective detection of pressure on both sides of the roadway, reduces detection errors, increases the practicality and flexibility of the device, adapts to adjustments for different roadway sizes and shapes, and improves mining safety.
Smart Images
Figure CN224945557U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roadway pressure detection technology, specifically a roadway pressure detection device for an isolated working face. Background Technology
[0002] An isolated working face refers to a working face surrounded by goaf areas, or a working face with goaf areas on both sides of the working face roadway. It is like a lonely island at sea, without a home but containing treasures. However, the mining difficulty and risks are relatively high. As the mining depth gradually increases, the compressive stress of the stratum on the inner wall of the roadway becomes greater and greater, which greatly affects the stability of the roadway roof. Among the various accidents that occur in mining production, roof accidents still rank first. Therefore, it is necessary to test the pressure inside the tunnel. However, most current testing devices can only test the pressure at the top of the tunnel. There is also a risk of collapse on both sides of the tunnel, and the current testing devices cannot test the pressure on both sides of the tunnel, which is a significant limitation. Based on the above problems, there may already be technical means in the current technology to solve the above technical solutions. This case aims to provide an alternative or replacement technical means. Utility Model Content
[0003] To achieve the above objectives, this utility model provides the following technical solution: A roadway pressure detection device for an isolated working face includes a base, a pair of symmetrically arranged base frames are installed on the upper side of the base, a top frame is inserted into the upper side of the base frame, a first adjusting plate is inserted into the upper side of the top frame, and the upper side of the top frame is arc-shaped. Pressure detection units are provided on both the upper and lower sides of the top frame, and a reinforcing frame is provided on the inner side of the top frame. A second adjusting plate is inserted into the inner side of the reinforcing frame. The pressure detection unit includes an annular frame sleeved on the top frame. A U-shaped assembly block is provided on the annular frame. A fixed rod is provided on the upper side of the U-shaped assembly block. A movable seat is slidably connected to the fixed rod. A transmission block is provided on the upper side of the U-shaped assembly block. A transmission rod is rotatably connected to the lower side of the transmission block. One side of the transmission rod is rotatably connected to the upper side of the movable seat. A pressure sensor is provided on the U-shaped assembly block. The movable seat is connected to the U-shaped assembly block through a spring rod.
[0004] In the above scheme: an arc-shaped block is provided on the upper side of the transmission block.
[0005] In the above scheme: the top frame and the bottom frame are connected together, and the first adjusting plate and the top frame are connected together, and the first fastening bolts pass through the ring frame.
[0006] In the above scheme, inclined rods are provided on both the upper and lower sides of the reinforcing frame.
[0007] In the above scheme: a second fastening bolt is provided at the insertion point of the reinforcing frame and the second adjusting plate.
[0008] In the above scheme: a pressure block corresponding to the pressure sensor is provided on the lower side of the transmission block.
[0009] This utility model provides a roadway pressure detection device for isolated working faces, which has the following beneficial effects: 1. Pressure detection units are provided on the upper and lower sides of the top frame, which can not only detect the pressure on the roof, but also detect the pressure on both sides of the roadway at the same time. The overall detection range is large, which increases the practicality of the device and reduces its limitations. 2. The base frame and top frame are plugged in, and the top frame is plugged in with the first adjusting plate. First fastening bolts are set at the plugging points, and second fastening bolts are set at the plugging points of the reinforcing frame and the second adjusting plate. This ensures the stability of the connection of each component, can withstand greater stratum stress, and reduces detection errors caused by loosening of the device. At the same time, the plugging design between each component makes the device flexible in adjustment and can be adjusted according to different roadway sizes and shapes. The overall device is flexible in use and highly practical. Attached Figure Description
[0010] Figure 1 This is a first three-dimensional structural diagram of the present invention.
[0011] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.
[0012] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention.
[0013] In the diagram: 1. Base, 2. Base frame, 3. Top frame, 4. First adjusting plate, 5. Reinforcing frame, 6. Second adjusting plate, 7. Ring frame, 8. U-shaped assembly block, 9. Fixed rod, 10. Moving seat, 11. Transmission block, 12. Transmission rod, 13. Pressure sensor, 14. Arc block, 15. Inclined rod, 16. Pressure block. Detailed Implementation
[0014] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0015] Example Please see Figure 1-3 A roadway pressure detection device for an isolated working face includes a base 1, a pair of symmetrically arranged base frames 2 are installed on the upper side of the base 1, a top frame 3 is inserted into the upper side of the base frame 2, a first adjusting plate 4 is inserted into the upper side of the top frame 3, and the upper side of the top frame 3 is arc-shaped. Pressure detection units are provided on both the upper and lower sides of the top frame 3. A reinforcing frame 5 is provided on the inner side of the top frame 3, and a second adjusting plate 6 is inserted into the inner side of the reinforcing frame 5. The pressure detection unit includes an annular frame 7, which is sleeved on the top frame 3. A U-shaped assembly block 8 is provided on the annular frame 7. A fixed rod 9 is provided on the upper side of the U-shaped assembly block 8. A movable seat 10 is slidably connected to the fixed rod 9. A transmission block 11 is provided on the upper side of the U-shaped assembly block 8. A transmission rod 12 is rotatably connected to the lower side of the transmission block 11. One side of the transmission rod 12 is rotatably connected to the upper side of the movable seat 10. A pressure sensor 13 is provided on the U-shaped assembly block 8. The movable seat is connected to the U-shaped assembly block 8 through a spring rod. During the mining process of the isolated working face, as the mining depth gradually increases, the compressive stress of the stratum on the inner wall of the roadway becomes greater and greater. In order to increase the safety of mining, it is necessary to carry out pressure testing on the inner wall of the roadway. During the pressure testing, the operator can move the base 1 to the designated position. Anchor rods are inserted on both sides of the base 1 to increase the fixing effect of the base 1. The operator then adjusts the device according to the horizontal width and height of the roadway. First, the height and spacing of the two top frames 3 are adjusted, and the height of the top frames 3 is fixed by the first fastening bolt. At the same time, the position of the first adjusting plate 4 can be fixed by the first fastening bolt, thereby fixing the spacing between the two top frames 3. After the adjustment is completed, the width and height between the top frames 3 are matched with the roadway. Then, the second adjusting plate 6 is fixed by the second fastening bolt. The second adjusting plate 6, the reinforcing frame 5, and the tilting rod 15 work together to increase the overall structural strength of the top frame 3 and ensure the stability of the device. After the top frame 3 is adjusted, the base frame 2 is fixed to the base 1 with screws. Meanwhile, in this device, the annular frame 7 is also fixed to the top frame 3 by the first fastening bolt. After the top frame 3 is adjusted, the first fastening bolt can also fix the annular frame 7. There are four annular frames 7 in this device, two on the top side and one on each side. After the overall adjustment of the device is completed, the arc-shaped block 14 on the transmission block 11 will be in close contact with the inner wall of the tunnel. When the inner wall of the tunnel deforms, the arc-shaped block 14 will press down on the transmission block 11 and push the moving seat along the fixed rod 9 through the transmission rod 12, and compress the spring rod. At the same time, the transmission block 11 will squeeze the pressure sensor 13 through the pressure block 16, thereby achieving the effect of pressure detection. The arc-shaped block 14 is used to increase the contact area between the device and the inner wall of the tunnel, thereby increasing the pressure detection effect. The inner wall of the U-shaped assembly block 8 is connected to the moving seat through a spring rod. The reaction force generated when the spring rod is squeezed can keep the arc-shaped block 14 in close contact with the inner wall of the tunnel, further increasing the detection effect.
[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A roadway pressure detection device for an island face, comprising a base (1), characterised in that, A pair of symmetrically arranged base frames (2) are installed on the upper side of the base (1). A top frame (3) is inserted into the upper side of the base frame (2). A first adjusting plate (4) is inserted into the upper side of the top frame (3). The upper side of the top frame (3) is arc-shaped. Pressure detection units are provided on both the upper and lower sides of the top frame (3), and a reinforcing frame (5) is provided on the inner side of the top frame (3). A second adjusting plate (6) is inserted into the inner side of the reinforcing frame (5). The pressure detection unit includes an annular frame (7), which is sleeved on the top frame (3). A U-shaped assembly block (8) is provided on the annular frame (7). A fixing rod (9) is provided on the upper side of the U-shaped assembly block. A movable seat (10) is slidably connected to the fixing rod (9). A transmission block (11) is provided on the upper side of the U-shaped assembly block (8). A transmission rod (12) is rotatably connected to the lower side of the transmission block (11). One side of the transmission rod (12) is rotatably connected to the upper side of the movable seat (10). A pressure sensor (13) is provided on the U-shaped assembly block (8). The movable seat (10) is connected to the U-shaped assembly block (8) through a spring rod.
2. The roadway pressure detection device for an islanded working face according to claim 1, characterized in that, An arc-shaped block (14) is provided on the upper side of the transmission block (11).
3. The roadway pressure detection device for an islanded working face according to claim 2, characterized in that, The top frame (3) and the bottom frame (2) are connected by a first fastening bolt, and the first adjusting plate (4) and the top frame (3) are connected by a first fastening bolt, which passes through the annular frame (7).
4. The roadway pressure detection device for an islanded working face according to claim 3, characterized in that, The reinforcing frame (5) is equipped with inclined rods (15) on both the upper and lower sides.
5. The roadway pressure detection device for an islanded working face according to claim 4, characterized in that, A second fastening bolt is provided at the insertion point between the reinforcing frame (5) and the second adjusting plate (6).
6. The roadway pressure detection device for an islanded working face according to claim 5, wherein, The transmission block (11) has a pressure block (16) corresponding to the pressure sensor (13) on its lower side.