Measuring device for mine filling

Abstract

This invention discloses a measuring mechanism for mine tunnel filling, relating to the field of support technology. It includes a support frame with a movable unit mounted on it. A vertical connector is mounted on the bottom of the movable unit, and an instrument mounting frame is fixedly connected to the bottom of the vertical connector. Four support frames extend synchronously from the instrument mounting frame to contact the inner wall of the observation channel, stabilizing the instrument's mounting position. After all four support frames are extended, a drill bit extends from the support frames in a rotating manner and drills into the inner wall of the observation channel. This ensures the stability of the instrument mounting frame even in the high-humidity environment during the later stages of backfilling, preventing slippery conditions, minor water seepage, and other factors that could affect the safe installation of the measuring instrument. It also ensures that the drill bit does not initially contact the inner wall of the channel, directly preventing damage to the channel from the drill bit, resulting in significant breakage or even detachment, further maintaining the stability of the support frame.

Description

Technical Field

[0001] This invention relates to the field of support technology, specifically to a measuring mechanism for filling mine tunnels. Background Technology

[0002] Mine backfilling is a technical measure used in underground mining to backfill mined-out chambers or tunnels with specific materials. Its core purpose is to ensure the safety of underground operations, maximize the recovery of mineral resources, protect the surface ecological environment, and achieve green treatment of mine waste. The prepared slurry is transported to the mined-out area that needs to be filled through pipelines using gravity or pumping. After solidification, it supports the rock strata, thereby ensuring safety, protecting the environment, and improving resource recovery rate.

[0003] Under normal procedures, the approximate required volume of slurry for filling can be calculated. However, when abnormalities occur during the filling process, such as a significant discrepancy between the rising liquid level and the pumped volume, or suspected leakage downhole, a dedicated measuring instrument is needed. This instrument must be accessed through an additional observation channel in the contact area to allow engineers to visually observe the slurry status and the contact situation for analysis and recording. Due to the complex environment of the filling area, a side-opening transport channel is required to deliver the instrument to the top of the filling area. This makes it difficult for installers to directly control the measuring instrument's status at the contact point. For example, unavoidable hand tremors can cause severe shaking and blurring of the images captured by the instrument during detection. Many solutions employ a support bracket adapted to the instrument, which is used to place the instrument into the designated position. However, practical experience has shown that when backfilling problems occur, they are usually in the later stages of backfilling. Although water filtration functions are installed at the retaining walls in the backfill area, the observation channels can still become slippery, or even experience minor water overflow. This means that ordinary measuring brackets are still insufficient in maintaining the stability of the measuring instrument, and may even threaten the safety of the measuring instrument. Therefore, existing measuring brackets are still inadequate when applied to the later stages of mine backfilling observation, and need improvement in maintaining the safety of the measuring instrument and facilitating engineers to obtain information about the goaf. Summary of the Invention

[0004] The purpose of this invention is to provide a measuring mechanism for mine tunnel filling, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a measuring mechanism for filling mine tunnels, comprising a support frame, a movable unit mounted on the support frame, a vertical connector mounted on the bottom surface of the movable unit, an instrument mounting frame fixedly connected to the bottom surface of the vertical connector, four support frames slidably connected to the inner wall of the instrument mounting frame, drill bits mounted on the inner walls of the four support frames, a mounting plate slidably connected to the inner wall of the instrument mounting frame, and four clamping rod assemblies slidably connected to the bottom surface of the mounting plate;

[0006] It also includes an environmental stabilization component, a measurement positioning component, and a pressure boosting component. The environmental stabilization component controls the four support frames to move synchronously along the inner wall of the instrument mounting frame. After all four clamping rod groups have contacted the inner wall of the wellbore, the drill bit inside rotates and extends out from the end of the support frame. The measurement positioning component pushes the mounting plate down after all four clamping rod groups have contacted the inner wall of the wellbore, pushing the measuring instrument out from the bottom of the instrument mounting frame. The pressure boosting component increases the clamping force of the four clamping rod groups on the instrument during the downward movement of the mounting plate.

[0007] Optionally, the environmental stabilization component includes a drive shaft, a rotating plate fixedly connected to the shaft wall of the drive shaft, the rotating plate being rotatably connected to the inner wall of the instrument mounting frame, four arc-shaped grooves being formed on the surface of the rotating plate, the ends of the four arc-shaped grooves being connected through annular grooves, an internal toothed ring being fixedly connected to the top surface of the rotating plate, and four sets of synchronous moving components.

[0008] Optionally, the synchronous moving component includes a fixed shaft passing through the arc-shaped groove. A gear is fixedly connected to the shaft wall of the fixed shaft, and the shaft wall of the fixed shaft is rotatably connected to the inner wall of the support frame. A triangular wedge block is slidably connected to the inner wall of the rotating plate, and the triangular wedge block is connected to the inner wall of the rotating plate through a path spring. A bevel gear one is fixedly connected to the end of the fixed shaft. A connecting rod assembly is rotatably connected to the inner wall of the support frame. A bevel gear two is fixedly connected to the rotating part of the connecting rod assembly. The teeth of the bevel gear two mesh with the teeth of the bevel gear one. A transmission sleeve is slidably connected to the end of the connecting rod assembly via a spline. A threaded block is threadedly connected to the outer wall of the transmission sleeve. The threaded block is fixedly connected to the inner wall of the support frame. The end of the transmission sleeve is fixedly connected to the surface of the drill bit.

[0009] Optionally, the measurement positioning component includes a balance plate, which is slidably connected to the inner wall of the instrument mounting frame. The drive shaft has a long-pitch threaded groove on its shaft wall, and a rotating block is threadedly connected to the drive shaft through the long-pitch threaded groove. The side wall of the rotating block is rotatably connected to the inner wall of the balance plate. An electric push rod is fixedly connected to the inner wall of the balance plate, and an insertion block is fixedly connected to the output end of the electric push rod. A control device is provided within the clamping rod assembly. The control device includes a sensor that monitors the status of the connecting rod assembly. When the connecting rod assembly starts to rotate, the control device drives the electric push rod to start. The side wall of the rotating block has an insertion slot corresponding to the insertion block. Four downward pressure rods are fixedly connected to the bottom surface of the balance plate. The walls of the four downward pressure rods are slidably connected to the inner wall of the instrument mounting frame. Each of the four downward pressure rods has a supporting spring sleeved on its wall, and the ends of the four downward pressure rods are fixedly connected to the top surface of the mounting plate.

[0010] Optionally, the pressure-lifting component includes a mounting sleeve, a connecting spring fixedly connected to the inner wall of the instrument mounting frame, a sliding plate fixedly connected to the upper end of the connecting spring, the sliding plate being slidably connected to the inner wall of the instrument mounting frame, the top surface of the sliding plate being slidably connected to the bottom surface of the mounting sleeve, a pressure spring fixedly connected to the inner wall of the mounting sleeve, a pusher fixedly connected to the end of the pressure spring via a connecting plate, a push block fixedly connected to the output end of the pusher, the push block being slidably connected to the inner wall of the mounting sleeve, the end of the push block being fixedly connected to the surface of the clamping rod assembly, pins fixedly connected to both sides of the mounting sleeve, and two inclined grooves formed in the inner wall of the instrument mounting frame, with the two pins slidably connected to the groove walls of the two inclined grooves respectively.

[0011] Optionally, a motor is fixedly connected to the inner wall of the instrument mounting bracket, and the output end of the motor is fixedly connected to the top end of the drive shaft.

[0012] Optionally, a rubber ring is fixedly connected to the bottom surface of the mounting plate. The rubber ring makes it easier to place the measuring instrument into the instrument mounting frame.

[0013] Optionally, the clamping rod assembly includes a clamping part and an anti-drop part. Through the cooperation of the four clamping rod assemblies, the measuring instrument can be firmly supported.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] I. This invention uses four support frames that extend simultaneously from the instrument mounting frame to contact the inner wall of the observation channel, thereby supporting the instrument mounting frame and stabilizing the installation position of the measuring instrument. This ensures stability during the measurement process from the source. After all four support frames have extended, the drill bit extends from the support frames in a rotating manner and drills into the inner wall of the observation channel, so that the instrument mounting frame is "nailed" to the position near the exit of the channel. This ensures that the instrument mounting frame remains stable even in the high humidity environment during the later stage of backfilling, avoiding special factors such as slipperiness and minor water seepage that could affect the safety of the measuring instrument installation.

[0016] The sequential movement of the drill bit and the support frame ensures that the drill bit is driven in only after the instrument mounting frame has been centered. Due to the high humidity in the observation channel, this ensures that the drill bit will not come into contact with the inner wall of the channel in the early stages, directly avoiding damage to the channel caused by the drill bit, resulting in a lot of breakage or even detachment, and further maintaining the stability of the support frame.

[0017] Second, in the process of delivering the measuring instrument to the exit of the adjacent channel, the measuring instrument is located in the instrument mounting frame. The instrument mounting frame can protect the measuring instrument and prevent the detection end of the measuring instrument from being bumped or knocked on the path of positioning. After the instrument mounting frame has completed its self-positioning, the measuring instrument extends out from the bottom of the instrument mounting frame. The overall logic is reasonable and the safety protection of the measuring instrument is further improved, avoiding the situation where the instrument is damaged before it is in place.

[0018] Third, during the positioning of the measuring instrument, the present invention provides elastic protection for the measuring instrument through a pressure spring, and dampens and buffers any possible collisions that may occur during the positioning process. After the instrument mounting frame is set up and the measuring instrument extends to work, the clamping force of the clamping rod group on the measuring instrument is increased, which further improves the stability of the measuring instrument. Through the change of elasticity of the pressure spring, from the insertion of the measuring instrument from the observation channel to the extension to work after positioning, the instrument is adaptively protected, thus improving the overall stability and safety of the measuring instrument setup. Attached Figure Description

[0019] Figure 1 This is an exploded view of the assembly of this measuring bracket;

[0020] Figure 2 This is an exploded view of the connecting part of the instrument mounting bracket of the present invention;

[0021] Figure 3 This is a top-view cross-sectional view of the instrument mounting bracket of the present invention;

[0022] Figure 4 This is a schematic diagram illustrating the motion principle of the fixed axis of this invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0025] Figure 7 This is a schematic diagram of the transmission principle from the drive shaft to the mounting plate of the present invention;

[0026] Figure 8 This is a schematic diagram illustrating the motion principle of the mounting sleeve of the present invention.

[0027] Figure 9 This is a schematic diagram illustrating the cooperation between the rotating block and the balance plate of the present invention;

[0028] Figure 10 This is a plan view of the internal structure of the mounting sleeve of the present invention.

[0029] In the diagram: 1. Erection bracket; 2. Moving unit; 3. Vertical connecting piece; 4. Instrument mounting frame; 5. Support frame; 6. Drill bit; 7. Mounting plate; 8. Clamping rod assembly; 9. Drive shaft; 10. Rotating plate; 11. Arc groove; 12. Circular groove; 13. Internal gear ring; 14. Fixed shaft; 15. Gear; 16. Triangular wedge block; 17. Path spring; 18. Bevel gear one; 19. Connecting rod assembly; 20. Bevel gear two; 21. Transmission sleeve; 22. Threaded block; 23. Balance plate; 24. Long-pitch threaded groove; 25. Rotating block; 26. Electric push rod; 27. Insert block; 28. Downward pressure rod; 29. ​​Support spring; 30. Mounting sleeve; 31. Connecting spring; 32. Pressure spring; 33. Pusher; 34. Push block; 35. Pin shaft; 36. Inclined groove; 37. Motor. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1, please refer to Figures 1 to 10This invention provides a measuring mechanism for mine tunnel filling, including a support frame 1, a movable unit 2 mounted on the support frame 1, a vertical connector 3 mounted on the bottom surface of the movable unit 2, an instrument mounting frame 4 fixedly connected to the bottom surface of the vertical connector 3, four support frames 5 slidably connected to the inner wall of the instrument mounting frame 4, each of the four support frames 5 having a drill bit 6 mounted on its inner wall, a mounting plate 7 slidably connected to the inner wall of the instrument mounting frame 4, four clamping rod assemblies 8 slidably connected to the bottom surface of the mounting plate 7, and a rubber ring fixedly connected to the bottom surface of the mounting plate 7. When an abnormality occurs in the filling area, an L-shaped observation channel is excavated at the top of the filling area, and the measuring instrument is pre-placed from the bottom of the instrument mounting frame 4 and inserted into the rubber ring. The device is positioned during instrument placement, making it easier to insert the measuring instrument. Four clamping rods 8 then hold the measuring instrument in place. Each clamping rod 8 includes a clamping part and an anti-drop part. The anti-drop part securely supports the measuring instrument, preventing it from falling from the bottom of the instrument mounting frame 4. The installer then inserts the mounting bracket 1 from the extension opening of the observation well. The moving unit 2 moves the instrument mounting frame 4 and the vertical connector 3 above the filling area. The vertical connector 3 lowers the instrument mounting frame 4 along the observation channel until it reaches the exit of the channel. This process is the standard transport process for existing brackets, so detailed explanations of the principle are not provided in this embodiment.

[0032] The measuring mechanism also includes an environmental stabilization component, a measurement positioning component, and a pressure boosting component. The environmental stabilization component controls the four support frames 5 to move synchronously along the inner wall of the instrument mounting frame 4. After all four clamping rod groups 8 are in contact with the inner wall of the well, the drill bit 6 inside rotates and extends out from the end of the support frame 5. The measurement positioning component pushes the mounting plate 7 downward after all four clamping rod groups 8 are in contact with the inner wall of the well, pushing the measuring instrument out from the bottom of the instrument mounting frame 4. The pressure boosting component increases the clamping force of the four clamping rod groups 8 on the instrument during the downward movement of the mounting plate 7.

[0033] The environmental stabilization components include a drive shaft 9, a motor 37 fixedly connected to the inner wall of the instrument mounting frame 4, the output end of the motor 37 fixedly connected to the top of the drive shaft 9, a rotating plate 10 fixedly connected to the shaft wall of the drive shaft 9, the rotating plate 10 being rotatably connected to the inner wall of the instrument mounting frame 4, four arc-shaped grooves 11 being formed on the surface of the rotating plate 10, the ends of the four arc-shaped grooves 11 being connected through annular grooves 12, and an internal gear ring 13 fixedly connected to the top surface of the rotating plate 10, the internal gear ring 13 being disposed on the outer periphery of the annular groove 12. After the instrument mounting frame 4 carries the detection instrument to the exit of the adjacent channel, the motor 37 is started, driving the drive shaft 9 to rotate one revolution. At this time, the drive shaft 9 drives the rotating plate 10 to rotate. During this process, the vertical connecting piece 3 ensures that the instrument mounting frame 4 will not rotate along with it. During the relative rotation between the rotating plate 10 and the instrument mounting frame 4, the arc-shaped grooves 11 and the annular grooves 12 rotate synchronously. The components also include four sets of synchronous moving parts.

[0034] The synchronous moving component includes a fixed shaft 14, which passes through an arc-shaped groove 11. A gear 15 is fixedly connected to the shaft wall of the fixed shaft 14, and the gear 15 engages with an internal gear ring 13. The shaft wall of the fixed shaft 14 is rotatably connected to the inner wall of the support frame 5. A triangular wedge block 16 is slidably connected to the inner wall of the rotating plate 10, and the triangular wedge block 16 is connected to the inner wall of the rotating plate 10 through a path spring 17. A bevel gear 18 is fixedly connected to the end of the fixed shaft 14. A connecting rod assembly 19 is rotatably connected to the inner wall of the support frame 5. A bevel gear 20 is fixedly connected to the rotating part of the connecting rod assembly 19, and the teeth of the bevel gear 20 mesh with the teeth of the bevel gear 18. A transmission sleeve 21 is slidably connected to the end of the connecting rod assembly 19 via a spline. A threaded block 22 is threadedly connected to the outer wall of the transmission sleeve 21, and the threaded block 22 is fixedly connected to the inner wall of the support frame 5. The end of the transmission sleeve 21 is fixedly connected to the surface of the drill bit 6.

[0035] More specifically, in this embodiment: since the support frame 5 is limited by the instrument mounting frame 4, it will not rotate. Therefore, during the rotation of the rotating plate 10, the fixed shaft 14 will be driven to move along the inner wall of the arc groove 11 until it reaches the intersection of the arc groove 11 and the annular groove 12. During this process, the support frame 5 will be driven to extend out of the inner wall of the instrument mounting frame 4. Then the drive shaft 9 continues to rotate, causing the fixed shaft 14 to move along the groove wall of the annular groove 12. During the movement of the fixed shaft 14, it will contact the inclined surface of the triangular wedge block 16. At this time, the triangular wedge block 16 will be pushed, causing the path spring 17 to be compressed. That is, the triangular wedge block 16 will not obstruct the movement of the fixed shaft 14. Since the gear 15 has meshed with the teeth of the internal gear ring 13 at this time, the gear 15 will rotate, thereby causing the fixed shaft 14 to rotate until the rotating plate 10 completes one revolution and the fixed shaft 14 returns to its original position.

[0036] When the fixed shaft 14 rotates, the rotating parts on the connecting rod assembly 19 will rotate through the transmission of bevel gear 18 and bevel gear 20, thereby driving the transmission sleeve 21 to rotate. Then, through the cooperation of the transmission sleeve 21 and the threaded block 22, the drill bit 6 is pushed out of the support frame 5 by rotating.

[0037] In the above manner, the four support frames 5 can be extended synchronously from the instrument mounting frame 4. After they are all extended, the drill bit 6 extends from the support frame 5 in a rotating manner. Through this process, the four support frames 5 can first contact the inner wall of the observation channel to support the instrument mounting frame 4, thereby stabilizing the position of the measuring instrument and ensuring stability during the measurement process from the source. During production, the support frame 5 is assembled as a telescopic rod with internal elastic elements to adapt to the size of the observation channel. If the initial position of the instrument mounting frame 4 is not the central axis of the observation channel, this can also push the instrument mounting frame 4 back to the center area, which not only ensures the stability of the instrument mounting frame 4 at this location, but also has the function of self-positioning.

[0038] During the subsequent movement of drill bit 6, it will drill into the inner wall of the observation channel, so that the instrument mounting frame 4 is "nailed" to the position near the exit of the channel. This ensures that the instrument mounting frame 4 remains stable in the high humidity environment during the later stage of backfilling, avoiding special factors such as slipperiness and minor water seepage that could affect the safety of the measurement instrument installation.

[0039] It is worth noting that during the device reset process, i.e. when the rotating plate 10 rotates in reverse, since the fixed axis 14 first contacts the straight edge of the triangular wedge block 16, it will not push the triangular wedge block 16 to move, but will smoothly slide into the arc groove 11. Through the cooperation of the above structure, the movement of the drill bit 6 and the movement of the support frame 5 have a logical characteristic of sequential order. This ensures that the nailing process of the inner wall is carried out after the center of the instrument mounting frame 4 is returned to its original position. Since the humidity of the observation channel is relatively high, the drill bit 6 will not contact the inner wall of the channel in the early stage. Thus, during the self-positioning process, the channel is directly avoided from being damaged by the drill bit 6, resulting in a lot of damage or even falling off, which would affect the safety of the bracket.

[0040] Example 2, based on the above examples:

[0041] Please see Figure 7 and Figure 9The measuring positioning component includes a balance plate 23, which is slidably connected to the inner wall of the instrument mounting bracket 4. A long-pitch threaded groove 24 is provided on the shaft wall of the drive shaft 9. A rotating block 25 is threadedly connected to the drive shaft 9 through the long-pitch threaded groove 24. The side wall of the rotating block 25 is rotatably connected to the inner wall of the balance plate 23. An electric push rod 26 is fixedly connected to the inner wall of the balance plate 23. A plug block 27 is fixedly connected to the output end of the electric push rod 26. A control device is provided inside the clamping rod assembly 8. The control device includes a sensor, which monitors the status of the connecting rod assembly 19. When the connecting rod assembly 19 opens... When rotation begins, the control device drives the electric push rod 26 to start. The side wall of the rotating block 25 has a corresponding insertion slot for the insertion block 27. The bottom surface of the balance plate 23 is fixedly connected to four pressing rods 28. The rod walls of the four pressing rods 28 are slidably connected to the inner wall of the instrument mounting frame 4. The rod walls of the four pressing rods 28 are fitted with support springs 29. The ends of the four pressing rods 28 are fixedly connected to the top surface of the mounting plate 7. Through the setting of the support springs 29, the mounting plate 7 and the measuring instruments installed below it are balanced by gravity. When there is no external force interference, the support springs 29 do not deform.

[0042] More specifically, in this embodiment: during the rotation of the drive shaft 9, the long-pitch threaded groove 24 will also move synchronously. When the connecting rod assembly 19 has not started to rotate, that is, when the clamping rod assembly 8 is still extending, the insert 27 is not inserted into the socket. At this time, the rotation of the drive shaft 9 will only drive the rotating block 25 to rotate through the long-pitch threaded groove 24, and will not drive the balance plate 23 to move down. During this process, the support spring 29 will provide support. The measuring instrument is a small measuring device with a camera, so the support spring 29 does not need to use a high-elasticity spring that is difficult to compress. When the connecting rod assembly 19 starts to rotate, the center positioning process of the measuring instrument has been completed. The electric push rod 26 will control the insert 27 to extend, so that the insert 27 is inserted into the socket, so that the rotating block 25 and the balance plate 23 maintain the same vertical constraint condition. Then, the subsequent rotation of the drive shaft 9 will cause the balance plate 23 to move down. Then, through the transmission of the pressing rod 28, the mounting plate 7 and the measuring instrument installed below it will move down synchronously and extend out of the instrument mounting frame 4.

[0043] In this way, the measuring instrument is initially positioned inside the instrument mounting bracket 4, which provides protection for the instrument and prevents the measuring instrument's detection end from being bumped or knocked during its positioning. After the instrument mounting bracket 4 has completed its self-positioning, the measuring instrument extends out from the bottom of the instrument mounting bracket 4. The overall logic is reasonable and the safety is further improved.

[0044] Example 3, based on the above examples:

[0045] Please see Figure 2 , Figure 7 , Figure 8 and Figure 10 The pressure-boosting component includes a mounting sleeve 30. A connecting spring 31 is fixedly connected to the inner wall of the instrument mounting frame 4. A sliding plate is fixedly connected to the upper end of the connecting spring 31. The sliding plate is slidably connected to the inner wall of the instrument mounting frame 4. The top surface of the sliding plate is slidably connected to the bottom surface of the mounting sleeve 30. A pressure spring 32 is fixedly connected to the inner wall of the mounting sleeve 30. A pusher 33 is fixedly connected to the end of the pressure spring 32 through a connecting plate. A push block 34 is fixedly connected to the output end of the pusher 33. The push block 34 is slidably connected to the inner wall of the mounting sleeve 30. The end of the push block 34 is fixedly connected to the surface of the clamping rod assembly 8. Pins 35 are fixedly connected to both sides of the mounting sleeve 30. Two inclined grooves 36 are opened on the inner wall of the instrument mounting frame 4. The two pins 35 are slidably connected to the groove walls of the two inclined grooves 36 respectively.

[0046] More specifically, in this embodiment: by activating the pusher 33, the pusher 34 is driven to slide relative to the mounting sleeve 30, thereby clamping the measuring instrument by moving the clamping rod assembly 8. The anti-drop part on the clamping rod assembly 8 can firmly support the measuring instrument. During the positioning of the measuring instrument, the compression spring 32 can provide elastic protection for the measuring instrument and has a certain shock absorption and buffering effect. During the process of moving the measuring instrument down on the balance plate 23, the mounting sleeve 30 will be driven to move down synchronously through the mounting plate 7 and the clamping rod assembly 8. At this time, the connecting spring 31 will deform. The connecting spring 31 only plays the role of stabilizing support for the resetting of the mounting sleeve 30. During the downward movement of the mounting sleeve 30, the pin 35 slides along the groove wall of the inclined groove 36, thus pushing the mounting sleeve 30 closer to the measuring instrument. Since the inner wall of the clamping rod assembly 8 has already contacted the surface of the measuring instrument, the compression spring 32 will be actively compressed.

[0047] In this way, after the instrument mounting frame 4 is set up and the measuring instrument extends into operation, the clamping force of the clamping rod group 8 on the measuring instrument is increased, which further improves the stability of the measuring instrument. In this way, through the change of elasticity of the pressure spring 32, the measuring instrument is adaptively protected from the process of being inserted into the observation channel until it is in place and extended into operation. This improves the stability and safety of the measuring instrument. After the instrument mounting frame 4 is set up, the installers can observe the current backfill area through the measuring instrument.

[0048] Working principle: When this mine filling measuring mechanism is in use, when an anomaly occurs in the filling area, an L-shaped observation channel is excavated at the top of the filling area. The measuring instrument is pre-placed from the bottom of the instrument mounting frame 4 and locked into the rubber ring. The measuring instrument is clamped by four clamping rods 8, which firmly support the measuring instrument and prevent it from falling from the bottom of the instrument mounting frame 4. Then, the installer extends the mounting bracket 1 from the extension of the observation channel and moves the instrument mounting frame 4 and the vertical connecting piece 3 to the top of the filling area through the moving unit 2. The instrument mounting frame 4 is then lowered along the observation channel through the vertical connecting piece 3 until it is close to the exit of the channel.

[0049] After the instrument mounting frame 4 carries the testing instrument to the exit of the adjacent channel, the motor 37 is started, causing the four support frames 5 to extend synchronously from the instrument mounting frame 4. After all the support frames 5 have extended, the drill bit 6 extends from the support frames 5 in a rotating manner. This allows the instrument mounting frame 4 to be supported by the four support frames 5 in contact with the inner wall of the observation channel, thereby stabilizing the position of the measuring instrument. If the initial position of the instrument mounting frame 4 is not the central axis of the observation channel, this step can also position the instrument mounting frame 4 to the center area. During the subsequent movement of the drill bit 6, it will drill into the inner wall of the observation channel, so that the instrument mounting frame 4 is "nailed" to the position of the exit of the adjacent channel. This ensures that the instrument mounting frame 4 remains stable in the high humidity environment during the later stage of backfilling, thus providing a highly stable working environment for the measurement process of the measuring instrument. It also avoids the situation where the self-positioning process causes a lot of damage to the inner wall or even falls off due to the high relative humidity inside the channel.

[0050] After the instrument mounting frame 4 has self-positioned, the balance plate 23 moves downward, allowing the mounting plate 7 and the measuring instrument mounted below it to extend out from the instrument mounting frame 4. In this way, in the initial state, the measuring instrument is located inside the instrument mounting frame 4 and protected by the instrument mounting frame 4, preventing the measuring instrument's detection end from being bumped or knocked during its positioning. After the instrument mounting frame 4 has self-positioned, the measuring instrument extends out from the bottom of the instrument mounting frame 4 to collect relevant data. During the process of the measuring instrument being carried into position by the instrument mounting frame 4, the compression spring 32 provides elastic protection for the measuring instrument and has a certain shock absorption and buffering effect. After the instrument mounting frame 4 is set up and the measuring instrument extends out, the clamping force of the clamping rod assembly 8 on the measuring instrument will increase, further improving the stability of the measuring instrument.

[0051] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring mechanism for filling mine tunnels, comprising a support frame (1), characterized in that: The mounting bracket (1) is provided with a moving unit (2), the bottom surface of the moving unit (2) is provided with a vertical connector (3), the bottom surface of the vertical connector (3) is fixedly connected to an instrument mounting frame (4), the inner wall of the instrument mounting frame (4) is slidably connected to four support frames (5), the inner walls of the four support frames (5) are provided with drill bits (6), the inner wall of the instrument mounting frame (4) is slidably connected to a mounting plate (7), the bottom surface of the mounting plate (7) is slidably connected to four clamping rod groups (8); The measuring mechanism also includes: An environmental stabilization component controls the four support frames (5) to move synchronously along the inner wall of the instrument mounting frame (4), and after all four clamping rod groups (8) have contacted the inner wall of the well, the drill bit (6) inside rotates and extends out from the end of the support frame (5); After all four clamping rod assemblies (8) have made contact with the inner wall of the well, the mounting plate (7) is pushed down to push the measuring instrument out from the bottom of the instrument mounting frame (4); The pressure-boosting component increases the clamping force of the four clamping rod assemblies (8) on the instrument as the mounting plate (7) moves down; The environmental stabilization component includes: A drive shaft (9) is fixedly connected to a rotating plate (10) on its shaft wall. The rotating plate (10) is rotatably connected to the inner wall of the instrument mounting frame (4). The surface of the rotating plate (10) is provided with four arc-shaped grooves (11). The ends of the four arc-shaped grooves (11) are connected through an annular groove (12). An internal gear ring (13) is fixedly connected to the top surface of the rotating plate (10). The internal gear ring (13) is located on the outer periphery of the annular groove (12). The rotating plate (10) also includes four sets of synchronous moving parts. The synchronous moving component includes: a fixed shaft (14) that passes through the arc-shaped groove (11), a gear (15) fixedly connected to the shaft wall of the fixed shaft (14), the gear (15) engaging with the internal gear ring (13), the shaft wall of the fixed shaft (14) being rotatably connected to the inner wall of the support frame (5), a triangular wedge block (16) slidably connected to the inner wall of the rotating plate (10), the triangular wedge block (16) being connected to the inner wall of the rotating plate (10) via a path spring (17), a bevel gear one (18) fixedly connected to the end of the fixed shaft (14), a connecting rod assembly (19) rotatably connected to the inner wall of the support frame (5), a bevel gear two (20) fixedly connected to the rotating part of the connecting rod assembly (19), the teeth of the bevel gear two (20) meshing with the teeth of the bevel gear one (18), and the connecting rod assembly (19) being rotatably connected to the inner wall of the support frame (5). The end of the connecting rod assembly (19) is connected to a transmission sleeve (21) via a spline sliding connection. The outer wall of the transmission sleeve (21) is threaded with a threaded block (22). The threaded block (22) is fixedly connected to the inner wall of the support frame (5). The end of the transmission sleeve (21) is fixedly connected to the surface of the drill bit (6). During the extension of the four support frames (5), the fixed shaft (14) will move along the inner wall of the annular groove (12) and contact the inclined surface of the triangular wedge block (16). At this time, the fixed shaft (14) will push the triangular wedge block (16) to slide along the inner wall of the rotating plate (10) through the inclined surface, so that the path spring (17) is compressed. When the four support frames (5) are retracted, the fixed shaft (14) will contact the straight edge of the triangular wedge block (16). At this time, it is impossible to push the triangular wedge block (16) to move. The fixed shaft (14) will slide from the annular groove (12) into the arc groove (11). The measuring positioning component includes: a balance plate (23), which is slidably connected to the inner wall of the instrument mounting bracket (4); a long-distance threaded groove (24) is provided on the shaft wall of the drive shaft (9); a rotating block (25) is threadedly connected to the drive shaft (9) through the long-distance threaded groove (24); the side wall of the rotating block (25) is rotatably connected to the inner wall of the balance plate (23); an electric push rod (26) is fixedly connected to the inner wall of the balance plate (23); an insert block (27) is fixedly connected to the output end of the electric push rod (26); and a control device is provided inside the clamping rod assembly (8). The system includes sensors to monitor the status of the connecting rod assembly (19). When the connecting rod assembly (19) starts to rotate, the control device drives the electric push rod (26) to start. The side wall of the rotating block (25) is provided with a socket corresponding to the insert block (27). The bottom surface of the balance plate (23) is fixedly connected to four pressing rods (28). The walls of the four pressing rods (28) are slidably connected to the inner wall of the instrument mounting frame (4). The walls of the four pressing rods (28) are all fitted with support springs (29). The ends of the four pressing rods (28) are fixedly connected to the top surface of the mounting plate (7).

2. The measuring mechanism for mine tunnel filling according to claim 1, characterized in that: The pressure-boosting component includes: Mounting sleeve (30), the inner wall of the instrument mounting frame (4) is fixedly connected to a connecting spring (31), the upper end of the connecting spring (31) is fixedly connected to a sliding plate, the sliding plate is slidably connected to the inner wall of the instrument mounting frame (4), the top surface of the sliding plate is slidably connected to the bottom surface of the mounting sleeve (30), the inner wall of the mounting sleeve (30) is fixedly connected to a pressure spring (32), the end of the pressure spring (32) is fixedly connected to a pusher (33) through a connecting plate, the output end of the pusher (33) is fixedly connected to a push block (34), the push block (34) is slidably connected to the inner wall of the mounting sleeve (30), and the end of the push block (34) is fixedly connected to the surface of the clamping rod assembly (8); The mounting sleeve (30) is fixedly connected to pins (35) on both sides. The inner wall of the instrument mounting bracket (4) has two inclined grooves (36), and the two pins (35) are slidably connected to the groove walls of the two inclined grooves (36) respectively.

3. The measuring mechanism for mine tunnel filling according to claim 2, characterized in that: A motor (37) is fixedly connected to the inner wall of the instrument mounting bracket (4), and the output end of the motor (37) is fixedly connected to the top end of the drive shaft (9).

4. The measuring mechanism for mine tunnel filling according to claim 3, characterized in that: The bottom surface of the mounting plate (7) is fixedly connected with a rubber ring. The rubber ring makes it easier to put the measuring instrument into the instrument mounting frame (4).

5. The measuring mechanism for mine tunnel filling according to claim 4, characterized in that: The clamping rod assembly (8) includes a clamping part and an anti-drop part, and the measuring instrument is firmly supported by the four clamping rod assemblies (8).

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