A goaf filling body compaction detector

Abstract

The application relates to a goaf filling body compactness detector and relates to the technical field of mining engineering and geotechnical engineering, which comprises a probe rod, the bottom end of the probe rod is fixedly connected with a connecting mechanism, the bottom end of the probe rod is fixedly connected with a connecting plate outside, the left side of the connecting plate is fixedly connected with a damping mechanism, the two sides of the damping mechanism are fixedly connected with supporting plates, the bottom end of the supporting plate is fixedly connected with a bottom plate, and the top end of the bottom plate is fixedly connected with a multifunctional bin; the connecting mechanism comprises a connecting shell. The application has the effects that the adjusting ring drives the sliding rod and the push block to move, the push block pushes the sliding block to drive the moving plate to open or close the limiting half ring, the adjusting ring and the connecting shell are fixed through nuts after replacement, the adjusting ring is limited to avoid movement of the adjusting ring, the fixing or releasing of the conical penetration head is realized, and the connection or replacement efficiency of the probe rod and the conical penetration head is improved.

Description

Technical Field

[0001] This application relates to the fields of mining engineering and geotechnical engineering technology, and in particular to a tester for the compaction degree of goaf filling. Background Technology

[0002] Goaf backfill refers to the material filling the goaf formed after mining operations. It is usually composed of cement, sand, fly ash, and other cementing materials or inert materials. Its main function is to fill the goaf, support the surrounding rock mass, prevent geological disasters such as surface subsidence and collapse caused by the collapse of the goaf roof, effectively control the deformation of the surrounding rock, ensure the safety of subsequent mining operations, reduce the waste of mineral resources, and improve the resource recovery rate. It has the dual functions of safety protection and resource utilization.

[0003] When using the goaf backfill compaction tester, a standard-sized penetration probe is pressed or driven into the backfill at a uniform speed through a power unit. At the same time, the penetration resistance experienced by the probe, including cone tip resistance and sidewall friction, is monitored in real time. Utilizing the positive correlation between backfill compaction and penetration resistance, and combining the resistance change data at different depths, the instrument's built-in system analyzes and processes the data to calculate the compaction value at the corresponding depth. This enables layered and intuitive detection of the compaction quality of the backfill.

[0004] However, in the existing technology, some goaf backfill compaction testers have the problem of inconvenient replacement of the penetration head. When it is necessary to replace the penetration head with different specifications according to different backfill hardness, test depth or field conditions, it is often necessary to use special tools for multi-step disassembly. Not only is the operation process cumbersome and time-consuming, but improper force during disassembly can also cause wear on connecting parts, which greatly affects the test efficiency. In complex environments such as field goafs, the inconvenience of carrying tools and limited operating space further exacerbate the difficulty of replacement, and may even delay the progress of the test work due to untimely replacement. Therefore, a goaf backfill compaction tester is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a goaf backfill compaction tester, which aims to improve the problem of inconvenient replacement of the penetration head in the use of the goaf backfill compaction tester.

[0006] The technical solution of the goaf backfill compaction tester provided in this application is as follows: A goaf backfill compaction tester includes a probe rod, a connecting mechanism fixedly connected to the bottom end of the probe rod, a connecting plate fixedly connected to the outside of the bottom end of the probe rod, a vibration damping mechanism fixedly connected to the left side of the connecting plate, support plates fixedly connected to both sides of the vibration damping mechanism, a base plate fixedly connected to the bottom end of the support plate, and a multi-functional chamber fixedly connected to the top end of the base plate; the connecting mechanism includes a connecting shell, the top end of the connecting shell fixedly connected to the bottom end of the probe rod, a conical penetrating head fixedly connected to the bottom end of the connecting shell, a connecting block one fixedly connected to the top end of the conical penetrating head, two limiting semi-rings fixedly connected to the outside of the connecting block one, a moving plate fixedly connected to the far side of the two limiting semi-rings, a support bar fixedly connected to the top end of the two moving plates, two shrinkage columns fixedly connected to the near side of the two support bars, and a release component slidably connected to the outside of the connecting shell; Through the above technical solution: the probe rod is connected to the conical penetration head through the connecting mechanism, and the release component can drive the moving plate and the limiting semi-ring to fix or replace the conical penetration head; during the test, the vibration damping mechanism reduces the vibration of the probe rod, and the multi-functional chamber cooperates to complete the test-related operations.

[0007] Preferably, the vibration damping mechanism includes a functional plate, the bottom end of which is fixedly connected to the top end of the base plate. A fixing plate is fixedly connected to the inner wall of the bottom end of the functional plate. Support columns are fixedly connected to both the front and rear sides of the fixing plate. Multiple fixing blocks are fixedly connected to the bottom left side of the connecting plate. Connecting blocks II are fixedly connected to the far sides of the multiple fixing blocks. Damping rods are rotatably connected to the near sides of two connecting blocks II. Slide plates are rotatably connected to the bottom ends of the multiple damping rods. Spring II is sleeved on the outside of the two support columns. Multiple damping columns I are fixedly connected to the inner wall of the top end of the functional plate. Spring III is sleeved on the outside of the multiple damping columns I. Two damping columns II are fixedly connected to the top end of the fixing plate. Multiple vibration damping pads are fixedly connected to the inner wall of the right side of the functional plate. By adopting the above technical solution, when the connecting plate vibrates, it drives the fixed block, connecting block two and damping rod to move, so that the slide plate slides on the support column and squeezes spring two; at the same time, the connecting plate squeezes damping column one, damping column two and vibration damping pad, and spring three contracts, which together play a role in vibration damping.

[0008] Preferably, the release assembly includes an adjusting ring, the inner wall of which is slidably connected to the outside of the connecting shell, a slide rod fixedly connected to the inner wall of the adjusting ring, a push block fixedly connected to the outside of the slide rod, sliders fixedly connected to the top ends of the adjacent sides of the two moving plates, a spring sleeved on the outside of the two retracting columns, and multiple guide rods fixedly connected to the bottom ends of the distant sides of the two moving plates, with nuts threadedly connected to the inner walls of the front and rear sides of the adjusting ring. By adopting the above technical solution, when the adjusting ring slides outside the connecting shell, it drives the sliding rod and the push block to move. The push block pushes the slider to move the moving plate under the action of the guide rod. With the extension and contraction of the spring, the position of the adjusting ring is fixed by the nut, thereby realizing the control of the relevant components.

[0009] Preferably, the two nuts are threaded to the inner wall of the connecting shell on their adjacent sides, and the bottom end of the push block is slidably connected to the outside of the two sliders on their adjacent sides. By adopting the above technical solution, when the adjusting ring drives the slide rod and the push block to move, the bottom end of the push block slides outside the two sliders on the side close to each other, pushing the moving plate to move. The nut fixes the adjusting ring by threaded connection with the inner wall of the connecting shell, and works with the spring to control the component.

[0010] Preferably, the two guide rods are fixedly connected to the inner wall of the connecting shell on opposite sides, and the slide rod is slidably connected to the inner wall of the connecting shell on the outside. By adopting the above technical solution, the slide bar drives the push block to move when it slides on the inner wall of the connecting shell. The moving plate maintains stable sliding by the fixing effect of the guide rod at the bottom end of the opposite side on the inner wall of the connecting shell, thus ensuring the coordination of the movement of each component of the release assembly.

[0011] Preferably, the two movable plates are externally slidably connected to the inner wall of the connecting shell, and the push block is externally slidably connected to the inner wall of the connecting shell; By adopting the above technical solution, when the pusher slides on the inner wall of the connecting shell, it drives the cooperating component to move. At the same time, the two moving plates slide on the inner wall of the connecting shell. This double sliding connection ensures the smoothness and stability of the internal movement of the release component.

[0012] Preferably, the bottom ends of the plurality of damping columns one are fixedly connected to the top left side of the connecting plate, the top of the functional plate is provided with a plurality of lead wire holes, and the top ends of the plurality of damping columns two are fixedly connected to the bottom of the connecting plate. By adopting the above technical solution, the bottom end of damping column one and the top end of damping column two are connected to the connecting plate respectively, and play a damping buffering role when moving with the connecting plate. The lead hole at the top of the functional plate provides a channel for the wiring layout, ensuring the coordinated operation of the vibration reduction mechanism and other components.

[0013] Preferably, the two supporting columns are fixedly connected to the inner wall of the functional plate at opposite ends, the inner walls of the plurality of sliding plates are slidably connected to the outside of the two supporting columns, and the plurality of vibration damping pads are fixedly connected to the left outer side of the connecting plate at adjacent ends. By adopting the above technical solution, the support column is fixed to the inner wall of the functional plate, providing a sliding track for the skateboard. When the skateboard slides outside the support column, it works in conjunction with the damping rod. The vibration damping pad is connected to the outside of the left side of the connecting plate, which can directly buffer the vibration transmitted by the connecting plate. The three work together to enhance the vibration damping effect.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, the adjusting ring drives the sliding rod and the push block to move. The push block pushes the slider to make the moving plate drive the limiting half ring to open or close. After the replacement is completed, the adjusting ring and the connecting shell are fixed by the nut to limit the movement of the adjusting ring and prevent it from moving. This realizes the fixing or release of the conical penetrating head, thereby improving the efficiency of connecting or replacing the probe rod and the conical penetrating head.

[0015] 2. In this utility model, the connecting plate drives the fixed block and the second connecting block to move, the second connecting block drives the damping rod to move, the damping rod drives the sliding plate to slide outside the support column, and at the same time the connecting plate squeezes the first damping column, the second damping column and the vibration damping pad, and the extension and retraction of the second spring and the third spring achieve vibration damping and buffering, thereby reducing vibration interference during probe detection and improving detection accuracy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a goaf filling compaction tester proposed in this utility model; Figure 2 This is a schematic diagram of the conical penetration head of a goaf filling compaction tester proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the vibration damping mechanism of a goaf filling compaction tester proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle; Explanation of reference numerals in the attached drawings: 1. Probe rod; 2. Connecting mechanism; 21. Connecting shell; 22. Conical penetrator; 23. Connecting block one; 24. Limiting semi-ring; 25. Moving plate; 26. Support bar; 27. Retraction column; 28. Release assembly; 281. Adjusting ring; 282. Slide rod; 283. Push block; 284. Slider; 285. Spring one; 286. Guide rod; 287. Nut; 3. Connecting plate; 4. Vibration damping mechanism; 41. Functional plate; 42. Fixing plate; 43. Support column; 44. Fixing block; 45. Connecting block two; 46. Damping rod; 47. Slide plate; 48. Spring two; 49. Damping column one; 401. Spring three; 402. Damping column two; 403. Vibration damping pad; 5. Support plate; 6. Base plate; 7. Multifunctional compartment. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0018] Example: A compaction degree tester for goaf filling body, referring to... Figures 1 to 3 The device includes a probe 1, which is typically made of a high-strength alloy to ensure that it is not easily bent or damaged when inserted into the filling material, thus ensuring the stability of the testing process. The bottom end of the probe 1 is fixedly connected to a connecting mechanism 2, which is responsible for fixing and protecting the conical penetrating head 22, so that the conical penetrating head 22 can stably contact the filling material during operation and avoid affecting the testing accuracy due to loose connection. The bottom end of the probe 1 is fixedly connected to a connecting plate 3, which transmits the vibration generated by the probe 1 during operation to the vibration damping mechanism 4. On the other hand, its own rigid structure can enhance the stability of the bottom end of the probe 1. Specifically, the probe rod 1 is made of high-strength alloy material to ensure stability. Its bottom end is fixed with a conical penetrating head 22 through a connecting mechanism 2 to ensure stable contact during testing. The connecting plate 3 on the outside of the bottom end of the probe rod 1 transmits vibration to the vibration damping mechanism 4, while also enhancing the rigidity of the bottom end of the probe rod 1. The three work together to reduce testing interference and improve accuracy.

[0019] A vibration damping mechanism 4 is fixedly connected to the left side of the connecting plate 3. When the probe 1 is inserted into the filling body, a certain vibration will be generated. If these vibrations are transmitted to the detection sensor, they will cause data deviation. The vibration damping mechanism 4 can effectively weaken these vibrations. Support plates 5 are fixedly connected to both sides of the vibration damping mechanism 4 to distribute the force generated by the vibration damping mechanism 4 to the base plate 6. At the same time, its symmetrical distribution structure can ensure that the vibration damping mechanism 4 is subjected to uniform force when working. The bottom end of the support plate 5 is fixedly connected to the base plate 6, providing a stable support platform for the entire equipment and ensuring that all components can work together. Specifically, the vibration damping mechanism 4 on the left side of the connecting plate 3 absorbs and buffers the vibration generated when the probe 1 is inserted through the damping rod 46, spring and other structures to avoid data deviation; the two side support plates 5 distribute the vibration damping force to the base plate 6, and its symmetrical structure ensures uniform force distribution; the wide contact surface of the base plate 6 provides stable support, and the three work together to ensure the stability and accuracy of the test.

[0020] The top of the base plate 6 is fixedly connected to a multi-functional compartment 7. The multi-functional compartment 7 integrates functional modules such as data acquisition, processing, storage and display. It receives detection signals transmitted from the probe 1, which greatly improves the efficiency and convenience of the detection work. The connecting mechanism 2 includes a connecting shell 21. The connecting shell 21 serves as the outer shell of the connecting mechanism 2 and can protect internal components such as the limiting half ring 24 and the moving plate 25 from external dust and impurities. Specifically, the multi-functional chamber 7 at the top of the base plate 6 integrates data acquisition and processing modules, receives the detection signal from the probe 1 and displays the result intuitively, significantly improving detection efficiency; the connecting shell 21 of the connecting mechanism 2 protects the internal limiting semi-ring 24, moving plate 25 and other components through a closed structure, avoiding dust and impurities from corroding and ensuring its flexible operation. The two respectively ensure the stable operation of the detector from the perspectives of functional realization and structural protection.

[0021] The top end of the connecting shell 21 is fixedly connected to the bottom end of the probe rod 1. The thrust of the probe rod 1 can be transmitted to the conical penetrator 22 through the connecting shell 21, ensuring that the connecting shell 21 will not be displaced relative to the probe rod 1 during operation. The bottom end of the connecting shell 21 is fixedly connected to the conical penetrator 22. The tip design of the conical penetrator 22 allows it to be easily inserted into the goaf filling body, reducing the resistance during the insertion process. At the same time, its conical structure can convert the resistance of the filling body into a stress signal that is easier to transmit during insertion. Specifically, the top of the connecting shell 21 is fixed to the bottom of the probe rod 1, which efficiently transmits the thrust of the probe rod 1 to the conical penetrator 22. The rigid connection ensures that there is no relative displacement during operation. The conical penetrator 22 at the bottom reduces the insertion resistance with its pointed tip design. The conical structure converts the resistance of the filling body into a stress signal. The two work together to achieve stable detection of the filling body by the probe rod 1.

[0022] The top of the conical penetrator 22 is fixedly connected to a connecting block 23. The conical penetrator 22 is fixed by the clamping action of the limiting half ring 24. At the same time, the rigid structure of the connecting block 23 can ensure that the conical penetrator 22 will not deform under force. Two limiting half rings 24 are fixedly connected to the outside of the connecting block 23. The two limiting half rings 24 fix the conical penetrator 22 by clamping the connecting block 23. The arc-shaped structure can fit tightly with the outside of the connecting block 23, increasing the contact area and improving the firmness of the fixation. Specifically, the conical penetrator 22 is fixed by the connection block 23 at the top and the limiting half ring 24. The rigid structure of the connection block 23 ensures that it does not deform under force. The arc-shaped structure of the two limiting half rings 24 fits tightly against the connection block 23, increasing the clamping force by increasing the contact area. Together, they ensure the stability and reliability of the conical penetrator 22 during operation.

[0023] Each of the two limiting semi-rings 24 has a movable plate 25 fixedly connected to its far side. When the movable plate 25 moves inward, the limiting semi-ring 24 tightens and clamps the connecting block 23. When the movable plate 25 moves outward, the limiting semi-ring 24 loosens the connecting block 23, which facilitates the replacement of the conical penetrating head 22. Each of the two movable plates 25 has a support bar 26 fixedly connected to its top. The support bar 26 connects the movable plate 25 to the contraction column 27 and transmits the elastic force of the contraction column 27 to the movable plate 25, so that the movable plate 25 can automatically reset under the action of the spring 285. Specifically, the two movable plates 25 are respectively connected to the limiting half ring 24. By moving inward and outward, the limiting half ring 24 is tightened or loosened by the connecting block 23, so as to fix and replace the conical penetrating head 22. The support bar 26 at the top of the movable plate 25 is connected to the shrinking column 27, which transmits the elastic force of the spring 285 outside the shrinking column 27 to the movable plate 25, ensuring that the movable plate 25 can automatically reset and ensuring the stable working state of the limiting half ring 24.

[0024] Two retractable columns 27 are fixedly connected to the adjacent sides of the two support bars 26. The expansion and contraction of the retractable columns 27 provide a buffer for the movement of the moving plate 25, preventing the moving plate 25 from being damaged due to excessive instantaneous force. The external of the connecting shell 21 is slidably connected to a release component 28, which enables the rapid fixing and replacement of the conical penetrating head 22. Specifically, the retractable column 27 on the side of the two support bars 26 that are close to each other provides a buffer for the movement of the moving plate 25 by telescoping, preventing it from being damaged due to excessive instantaneous force; the release component 28 outside the connecting shell 21, together with the moving plate 25 and other components, enables the rapid fixing and replacement of the conical insertion head 22, ensuring convenient operation.

[0025] Reference Figures 3 to 5 The vibration damping mechanism 4 includes a functional plate 41. Its rigidity ensures the relative position stability of each component during the vibration damping process, laying the foundation for the effective vibration damping effect. The bottom end of the functional plate 41 is fixedly connected to the top end of the base plate 6. The fixed connection method transmits the weight and force of the functional plate 41 to the base plate 6. With the stable support of the base plate 6, the functional plate 41 will not shake or shift during the vibration damping process. Specifically, the functional plate 41 of the vibration damping mechanism 4 ensures the stability of the position of each component during vibration damping by its own rigidity, laying the foundation for the vibration damping effect; the bottom end of the functional plate 41 is fixedly connected to the base plate 6, transferring weight and force to the base plate 6, and using the base plate 6 for stable support to prevent itself from shaking and displacement, ensuring the stability of the vibration damping process.

[0026] A fixing plate 42 is fixedly connected to the inner wall of the bottom end of the functional plate 41. The fixing plate 42 serves as the mounting base for the support column 43 and the damping column 402, connecting these components to the functional plate 41 as a whole. Support columns 43 are fixedly connected to both the front and rear sides of the fixing plate 42. The support columns 43 provide a sliding track for the slide plate 47, limiting the movement direction of the slide plate 47 so that it can only slide along the axial direction of the support column 43. Specifically, the fixing plate 42 on the inner wall of the bottom end of the functional plate 41 serves as the mounting base for the support column 43 and the damping column 402, connecting these components to the functional plate 41 as a whole; the support columns 43 on the front and rear sides of the fixing plate 42 provide sliding tracks for the slide plate 47 and limit its axial movement direction. The two work together to provide support and guidance for the stable operation of the internal components of the vibration damping mechanism 4.

[0027] Multiple fixing blocks 44 are fixedly connected to the bottom left side of the connecting plate 3. The fixing blocks 44 are the connection medium between the connecting plate 3 and the second connecting block 45, transmitting the vibration of the connecting plate 3 to the second connecting block 45. The second connecting block 45 is fixedly connected to the opposite side of the multiple fixing blocks 44, converting the vertical vibration transmitted by the fixing blocks 44 into the tilting swing of the damping rod 46, realizing the change of vibration direction and creating conditions for the consumption of vibration energy. Specifically, multiple fixed blocks 44 at the bottom left side of the connecting plate 3 serve as a connecting medium, transmitting the vibration of the connecting plate 3 to the second connecting block 45; the second connecting block 45 then converts the vertical vibration into the tilting swing of the damping rod 46, changing the direction of vibration to consume energy, and the two work together to achieve the transmission and conversion of vibration.

[0028] Damping rods 46 are rotatably connected to the adjacent sides of the two connecting blocks 45. The damping rods 46 rotate and extend under the drive of the connecting blocks 45. The damping structure inside can consume vibration energy during the movement and convert mechanical energy into heat energy for dissipation. The bottom ends of the multiple damping rods 46 are rotatably connected to sliding plates 47. The sliding plates 47 slide along the support column 43 under the push of the damping rods 46, converting the swing of the damping rods 46 into linear motion. The two support columns 43 are each fitted with springs 48. When the sliding plates 47 slide along the support columns 43, the springs 48 are compressed or stretched, using their elastic deformation to store vibration energy, and then releasing the energy through rebound. In this process, vibration buffering is achieved. Specifically, connecting block 45 drives the damping rod 46 to rotate and extend, and its internal damping structure consumes vibration energy; the damping rod 46 pushes the sliding plate 47 to slide along the support column 43, turning the swing into linear motion, while compressing or stretching the spring 48, which buffers the vibration through elastic deformation.

[0029] Multiple damping columns 49 are fixedly connected to the inner wall of the top of the functional plate 41. The damping columns 49 expand and contract under the pressure of the connecting plate 3. The damping material inside can absorb vibration energy during the expansion and contraction process and slow down the transmission speed of vibration. The external of the multiple damping columns 49 is fitted with springs 401, which absorb vibration energy through elastic deformation and push the damping columns 49 to reset after the vibration disappears, so that the damping columns 49 can continue to play a vibration reduction role and enhance the continuity and stability of vibration reduction. Specifically, the damping column 49 at the top of the functional plate 41 is compressed and extended by the connecting plate 3, and absorbs vibration energy and slows down its transmission through the internal damping material; the external spring 401 assists in absorbing energy, and pushes the damping column 49 to reset after the vibration disappears, ensuring continuous and stable vibration reduction.

[0030] Two damping columns 402 are fixedly connected to the top of the fixed plate 42. They consume vibration energy through their own damping effect. Their position distribution can balance the force on the connecting plate 3 and prevent the connecting plate 3 from tilting due to uneven force and forming a damping situation of being sandwiched between the damping column 49. Multiple damping pads 403 are fixedly connected to the inner wall of the right side of the functional plate 41. When the connecting plate 3 vibrates left and right, the damping pads 403 absorb vibration energy through their own deformation. At the same time, their softness can reduce the rigid collision between the connecting plate 3 and the functional plate 41. Specifically, the damping column 402 at the top of the fixed plate 42 consumes vibration energy through damping and forms a damping situation with the damping column 49, balancing the force on the connecting plate 3; the vibration damping pad 403 on the inner wall of the right side of the functional plate 41 absorbs the left and right vibration energy of the connecting plate 3 through its own deformation, reducing rigid collisions.

[0031] Reference Figures 1 to 3 The release assembly 28 includes an adjusting ring 281, which is operated by sliding outside the connecting shell 21. Its annular structure can uniformly transmit the force to the slide rod 282. The inner wall of the adjusting ring 281 is slidably connected to the outside of the connecting shell 21. The sliding connection allows the adjusting ring 281 to move flexibly along the axial direction of the connecting shell 21, providing a basis for controlling the movement of the slide rod 282 and the push block 283. Specifically, the adjusting ring 281 of the release assembly 28 slides the entire assembly outside the connecting shell 21, and its annular structure ensures that the force is evenly transmitted to the slide rod 282; the sliding connection between the adjusting ring 281 and the connecting shell 21 allows it to move flexibly along the axial direction, providing support for controlling the movement of the slide rod 282 and the push block 283, and realizing the quick replacement and fixation of the conical penetrating head 22.

[0032] The inner wall of the adjusting ring 281 is fixedly connected to a slide rod 282. The slide rod 282 is a transmission component connecting the adjusting ring 281 and the push block 283. The sliding of the adjusting ring 281 will directly drive the slide rod 282 to move synchronously, transmitting the force of the adjusting ring 281 to the push block 283. The slide rod 282 is fixedly connected to the outside of the push block 283, which pushes the moving plate 25 to move through contact with the slider 284. The inclined surface design at its bottom end can convert the axial movement of the slide rod 282 into the radial movement of the slider 284. Specifically, the slide bar 282 on the inner wall of the adjusting ring 281 serves as a transmission component, sliding with the adjusting ring 281 and transmitting the force to the push block 283; the push block 283 contacts the slider 284 through the inclined surface at its bottom end, converting the axial movement of the slide bar 282 into the radial movement of the slider 284, thereby pushing the moving plate 25 to achieve the opening and closing of the limiting half ring 24.

[0033] Slider 284 is fixedly connected to the top of each of the two movable plates 25 on their adjacent sides. Slider 284 serves as the contact component between the movable plate 25 and the push block 283. The inclined outer side of slider 284 matches the bottom end of push block 283, and can drive the movable plate 25 to move inward or outward under the push of push block 283. Spring 285 is sleeved on the outside of each of the two retractable columns 27. When the pushing force of push block 283 on slider 284 disappears, spring 285 will push support bar 26 and movable plate 25 to move outward, so that limit half ring 24 automatically releases connecting block 23. Specifically, the slider 284 at the top of the movable plate 25 matches the bottom of the push block 283, and the movable plate 25 moves inward and outward under the push of the push block 283; when the push force of the push block 283 disappears, the spring 285 outside the contraction column 27 pushes the support bar 26 and the movable plate 25 outward, so that the limiting half ring 24 automatically releases the connecting block 23.

[0034] Multiple guide rods 286 are fixedly connected to the bottom ends of the two movable plates 25 on opposite sides. The guide rods 286 guide the movement of the movable plates 25 and limit the movable plates 25 to move only along the axial direction of the guide rods 286, ensuring the accuracy of the clamping of the limiting half ring 24 on the connecting block 23. Nuts 287 are threadedly connected to the inner walls of the front and rear sides of the adjusting ring 281. The nuts 287 can fix the adjusting ring 281 at any position on the connecting shell 21 by threading with the adjusting ring 281 and the connecting shell 21. When the adjusting ring 281 moves to the appropriate position, tightening the nuts 287 can prevent the adjusting ring 281 from sliding on its own. Specifically, the guide rod 286 at the bottom of the opposite side of the movable plate 25 guides the movement of the movable plate 25, limits its axial movement, and ensures that the limiting half ring 24 accurately clamps the connecting block 23; the nuts 287 on the front and rear sides of the adjusting ring 281 fix the adjusting ring 281 at any position on the connecting shell 21 through threaded connection to prevent it from sliding on its own.

[0035] The two nuts 287 are threaded on the inner wall of the connecting shell 21 on their adjacent sides, and the adjusting ring 281 is firmly fixed by friction. At the same time, the threads on the inner wall of the connecting shell 21 match the nuts 287 to prevent the nuts 287 from loosening due to vibration during the testing process. The bottom end of the push block 283 is slidably connected to the outer side of the two sliders 284 on their adjacent sides. The sliding connection allows the push block 283 to maintain contact with the sliders 284 and slide relative to each other during the movement. The fitting accuracy between the push block 283 and the sliders 284 ensures the efficiency of force transmission. Specifically, the two nuts 287 are threadedly connected to the inner wall of the connecting shell 21 on the side closest to each other, and the adjusting ring 281 is fixed by friction. The matching threads can prevent vibration from causing the nuts 287 to loosen. The bottom end of the push block 283 is slidably connected to the side closest to the two sliders 284, which can maintain contact and slide relative to each other. The precision of the connection ensures the efficient transmission of force.

[0036] The two guide rods 286 are fixedly connected to the inner wall of the connecting shell 21 at opposite ends. The guide rods 286 are stably supported by the fixed connection with the connecting shell 21. The fixing method ensures that the guide rods 286 will not be displaced under the action of the moving plate 25, thus ensuring the continuity of the guiding function. The slide rod 282 is slidably connected to the inner wall of the connecting shell 21. The sliding connection allows the slide rod 282 to move freely inside the connecting shell 21. At the same time, the inner wall of the connecting shell 21 limits the slide rod 282. The two moving plates 25 are slidably connected to the inner wall of the connecting shell 21. The groove of the inner wall of the connecting shell 21 matches the external shape of the moving plate 25, ensuring the smoothness and stability of the movement of the moving plate 25. Specifically, the guide rod 286 is fixed to the inner wall of the connecting shell 21 on the opposite side, obtaining stable support and not being displaced by the moving plate 25, thus ensuring continuous guidance; the slide rod 282 is slidably connected to the inner wall of the connecting shell 21 on the outside, and can move freely but is limited by the inner wall; the moving plate 25 is slidably connected to the inner wall of the connecting shell 21 on the outside, and the inner wall groove matches the shape of the moving plate 25, ensuring its smooth and stable movement.

[0037] The push block 283 is externally slidably connected to the inner wall of the connecting shell 21. The inner wall of the connecting shell 21 provides a track and support for the movement of the push block 283 and limits the direction of movement of the push block 283. The bottom ends of the multiple damping columns 49 are fixedly connected to the top left side of the connecting plate 3. The tight connection between the damping columns 49 and the connecting plate 3 ensures the high efficiency of vibration transmission and makes the vibration reduction effect more obvious. Specifically, the push block 283 is slidably connected to the inner wall of the connecting shell 21, which provides a track and support and limits the direction of movement. The bottom ends of multiple damping columns 49 are fixed to the top left side of the connecting plate 3. The tight connection ensures efficient vibration transmission and enhances the vibration reduction effect. The two play a role in guiding the movement of the component and absorbing vibration, respectively.

[0038] The top of the functional plate 41 has multiple lead holes, which provide a channel for the wires inside the detector to pass through, so that the wires can be connected to the various components in an orderly manner, avoiding the messy tangling of the wires and facilitating later maintenance and repair. The tops of the multiple damping columns 402 are fixedly connected to the bottom of the connecting plate 3. The damping columns 402 support and damp the connecting plate 3 from the bottom, forming a pincer movement with the top damping column 49, which fully absorbs the vibration energy of the connecting plate 3 in the vertical direction. Specifically, the multiple lead holes inside the top of the functional board 41 provide a wire passage for the internal wires of the detector, allowing the wires to be connected to each component in an orderly manner, avoiding messy tangling, and facilitating later maintenance and repair; the tops of the multiple damping columns 402 are fixed to the bottom of the connecting plate 3, supporting and damping vibration from the bottom, forming a pincer movement with the top damping column 49, fully absorbing the vertical vibration energy of the connecting plate 3.

[0039] The two support columns 43 are fixedly connected to the inner wall of the functional plate 41 on opposite sides. The support columns 43 obtain stable support through the fixed connection with the functional plate 41, thereby providing a reliable track for the sliding of the slide plate 47. The inner walls of the multiple slide plates 47 are slidably connected to the outside of the two support columns 43. The sliding of the slide plate 47 on the support columns 43 can convert the swing of the damping rod 46 into linear motion, so that the second spring 48 can effectively extend and retract, thereby absorbing vibration energy. Specifically, the two support columns 43 are fixedly connected to the inner wall of the functional plate 41 on opposite sides, thereby obtaining stable support and providing a reliable track for the sliding of the slide plate 47; the inner walls of multiple slide plates 47 are slidably connected to the outside of the two support columns 43, and their sliding on the support columns 43 converts the swing of the damping rod 46 into linear motion, so that the second spring 48 can effectively extend and retract to absorb vibration energy.

[0040] Multiple vibration damping pads 403 are fixedly connected to the outer left side of the connecting plate 3 on one side. The direct connection between the vibration damping pads 403 and the connecting plate 3 enables them to absorb the vibration of the connecting plate 3 in the horizontal direction in a timely manner, thereby enhancing the vibration damping effect in the horizontal direction. Specifically, multiple vibration damping pads 403 are fixed to the outside of the left side of the connecting plate 3 on one side, and direct contact can absorb the horizontal vibration of the connecting plate 3 in a timely manner; this tight connection method specifically enhances the horizontal vibration damping effect, and works with the vertical vibration damping components to improve the overall vibration damping performance.

[0041] The implementation principle of this application embodiment is as follows: When it is necessary to fix the conical penetrator 22, the adjusting ring 281 of the release component 28 drives the slide rod 282 and the push block 283 to move downward. The push block 283 pushes the slider 284 so that the moving plate 25 moves inward under the guidance of the guide rod 286. The moving plate 25 drives the limiting half ring 24 to release. With the elastic force of the spring 285 outside the shrink column 27, the connecting block 23 is released, thereby replacing the conical penetrator 22. When fixing the conical penetrator 22, the nut 287 is rotated in the opposite direction so that the adjusting ring 281 drives the slide rod 282 and the push block 283 to move upward. The pushing force of the push block 283 on the slider 284 disappears. The spring 285 resets and drives the moving plate 25 and the limiting half ring 24 to move inward, binding the connecting block 23, thereby fixing the conical penetrator 22. This achieves the effect of convenient replacement of the conical penetrator 22 and improving the maintenance and use efficiency of the testing equipment.

[0042] When probe 1 vibrates, connecting plate 3 drives fixed block 44 and connecting block 45 to move. Connecting block 45 drives damping rod 46 to rotate. Damping rod 46 drives sliding plate 47 to slide outside support column 43 and compress spring 48. At the same time, connecting plate 3 compresses damping column 49, damping column 402 and vibration damping pad 403, causing spring 401 to contract. Through the damping effect of damping rod 46, the elastic deformation of spring 48 and spring 401 and the buffering of vibration damping pad 403, the vibration energy is offset, thereby reducing the interference of probe 1 vibration on the detection data and improving the detection stability and accuracy.

[0043] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tester for the compaction degree of goaf filling body, comprising a probe (1), characterized in that: The bottom end of the probe (1) is fixedly connected to a connecting mechanism (2), the bottom end of the probe (1) is fixedly connected to a connecting plate (3), the left side of the connecting plate (3) is fixedly connected to a vibration damping mechanism (4), both sides of the vibration damping mechanism (4) are fixedly connected to a support plate (5), the bottom end of the support plate (5) is fixedly connected to a bottom plate (6), and the top end of the bottom plate (6) is fixedly connected to a multi-functional compartment (7). The connecting mechanism (2) includes a connecting shell (21), the top end of which is fixedly connected to the bottom end of the probe (1), a conical penetrating head (22) is fixedly connected to the bottom end of the connecting shell (21), a connecting block (23) is fixedly connected to the top end of the conical penetrating head (22), two limiting semi-rings (24) are fixedly connected to the outside of the connecting block (23), a moving plate (25) is fixedly connected to the far side of the two limiting semi-rings (24), a support bar (26) is fixedly connected to the top end of the two moving plates (25), two shrinking columns (27) are fixedly connected to the near side of the two support bars (26), and a release component (28) is slidably connected to the outside of the connecting shell (21).

2. The goaf filling compaction tester according to claim 1, characterized in that: The vibration damping mechanism (4) includes a functional plate (41), the bottom end of which is fixedly connected to the top end of the base plate (6). A fixing plate (42) is fixedly connected to the inner wall of the bottom end of the functional plate (41). Support columns (43) are fixedly connected to the front and rear sides of the fixing plate (42). Multiple fixing blocks (44) are fixedly connected to the bottom left side of the connecting plate (3). Connecting blocks (45) are fixedly connected to the opposite sides of the multiple fixing blocks (44). Two connecting blocks (45) are rotatably connected to the adjacent sides of two connecting blocks (45). A damping rod (46) is connected to the bottom of the multiple damping rods (46), and a sliding plate (47) is rotatably connected to the bottom of each of the two support columns (43). A second spring (48) is sleeved on the outside of each of the two support columns (43). Multiple damping columns (49) are fixedly connected to the top inner wall of the functional plate (41), and a third spring (401) is sleeved on the outside of each of the multiple damping columns (49). Two second damping columns (402) are fixedly connected to the top of the fixed plate (42), and multiple damping pads (403) are fixedly connected to the right inner wall of the functional plate (41).

3. The goaf filling compaction tester according to claim 1, characterized in that: The release assembly (28) includes an adjusting ring (281), the inner wall of which is slidably connected to the outside of the connecting shell (21). A slide rod (282) is fixedly connected to the inner wall of the adjusting ring (281), and a push block (283) is fixedly connected to the outside of the slide rod (282). A slider (284) is fixedly connected to the top of the two adjacent sides of the two moving plates (25). A spring (285) is sleeved on the outside of the two contraction columns (27). A plurality of guide rods (286) are fixedly connected to the bottom of the two distant sides of the two moving plates (25). Nuts (287) are threadedly connected to the inner walls of the front and rear sides of the adjusting ring (281).

4. The goaf filling compaction tester according to claim 3, characterized in that: The two nuts (287) are threaded to the inner wall of the connecting shell (21) on their adjacent sides, and the bottom end of the push block (283) is slidably connected to the outside of the two sliders (284) on their adjacent sides.

5. The goaf filling compaction tester according to claim 3, characterized in that: The two guide rods (286) are fixedly connected to the inner wall of the connecting shell (21) on opposite sides, and the slide rod (282) is slidably connected to the inner wall of the connecting shell (21) on the outside.

6. The goaf filling compaction tester according to claim 3, characterized in that: The two movable plates (25) are externally slidably connected to the inner wall of the connecting shell (21), and the push block (283) is externally slidably connected to the inner wall of the connecting shell (21).

7. The goaf filling compaction tester according to claim 2, characterized in that: The bottom ends of multiple damping columns (49) are fixedly connected to the top left side of the connecting plate (3), and multiple lead wire holes are opened inside the top of the functional plate (41). The top ends of multiple damping columns (402) are fixedly connected to the bottom of the connecting plate (3).

8. The compaction degree tester for goaf filling body according to claim 2, characterized in that: The two support columns (43) are fixedly connected to the inner wall of the functional plate (41) on opposite sides, and the inner walls of the multiple sliding plates (47) are slidably connected to the outside of the two support columns (43). The multiple damping pads (403) are fixedly connected to the left side of the connecting plate (3) on opposite sides.

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