A displacement measuring device and coal mine separation layer detection equipment

Abstract

The utility model provides a kind of displacement measuring device and coal mine separation layer detection equipment, comprising: shell, shell is equipped with first installation cavity and with the outlet hole of first installation cavity communication;Detection rope, at least part of detection rope is set in first installation cavity, one end of detection rope passes through outlet hole and is connected with anchor jaw;Detection mechanism, detection mechanism is set in first installation cavity, detection mechanism is used to obtain the displacement of detection rope, according to the displacement of detection rope transmission to act and show the displacement of detection rope;Adapter component, adapter component is rotatably connected with shell, to make shell relative adapter component between unfolding state and folding state switching.The displacement measuring device in the utility model solves the technical problem that coal mine separation layer detection equipment occupies larger conveying space and transportation efficiency is lower in the related art.

Description

Technical Field

[0001] This utility model relates to the field of coal mine delamination monitoring technology, specifically to a displacement measuring device and a coal mine delamination detection equipment. Background Technology

[0002] In existing technologies, roof delamination is the biggest safety hazard in coal mine roadways using bolt support. Roof delamination displacement data needs to be monitored continuously to understand the rationality of the bolt support parameters, the stability of the roof during roadway use, and the development of fractures in the overlying strata. The main purpose is to promptly grasp the roof delamination situation, detect signs of roof instability early, and prevent roof collapse accidents, which is of great significance to coal mine safety production.

[0003] Currently, commercially available coal mine delamination detection equipment for measuring displacement in coal and rock mass typically includes a displacement measuring device and an anchoring cylinder. The anchoring cylinder secures the displacement measuring device to the roadway roof and is generally a long, cylindrical structure. However, coal mine delamination detection equipment generally employs a rigid or integral design between the displacement measuring device and the anchoring assembly, forming an inseparable unit. This results in a long overall size and high structural rigidity, occupying significant transport space during underground transport. It is difficult to adapt to narrow roadways, curves, and the loading requirements of transport vehicles. The number of coal mine delamination detection devices that can be transported in a single load is limited, leading to low transport efficiency and extreme inconvenience during transport.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a displacement measuring device and a coal mine delamination detection equipment to solve the technical problems of coal mine delamination detection equipment occupying a large conveying space and having low transportation efficiency in related technologies.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a displacement measuring device is provided, comprising: a housing, the housing having a first mounting cavity and a wire outlet hole communicating with the first mounting cavity; a detection rope, at least a portion of which is disposed within the first mounting cavity, one end of which passes through the wire outlet hole and is connected to an anchor claw; a detection mechanism, disposed within the first mounting cavity, the detection mechanism being used to acquire the displacement of the detection rope, to act according to the displacement transmitted by the detection rope, and to display the displacement of the detection rope; and a transfer component, the transfer component being rotatably connected to the housing, so that the housing can switch between an unfolded state and a folded state relative to the transfer component.

[0007] Furthermore, the adapter is provided with a first connecting seat, in which a first rotating shaft hole is formed. The housing is provided with a second connecting seat that matches the first connecting seat, in which a second rotating shaft hole is formed corresponding to the first rotating shaft hole. The displacement measuring device also includes a rotating shaft that passes through the first rotating shaft hole and the second rotating shaft hole respectively.

[0008] Furthermore, a positioning protrusion is provided on the first connecting seat, the positioning protrusion extends along the axial direction of the rotating shaft, and a positioning groove is provided on the outer surface of the housing corresponding to the positioning protrusion. The positioning groove is recessed, and when the housing is in the unfolded state, the positioning protrusion is embedded in the positioning groove.

[0009] Furthermore, a limiting groove is provided on the adapter component. The limiting groove extends along the axial direction of the rotating shaft. The limiting groove includes a first limiting surface and a second limiting surface that are connected to each other. A preset included angle is provided between the first limiting surface and the second limiting surface. When the housing is in the unfolded state, the first limiting surface abuts against the side of the housing near the adapter component, and the second limiting surface abuts against the end face of the housing near the adapter component.

[0010] Furthermore, a zero-point adjustment component is installed in the outlet hole. The zero-point adjustment component is hollow inside. A wire passage communicating with the outlet hole is opened at the end of the zero-point adjustment component near the first mounting cavity. A locking surface is provided at the end of the wire passage away from the first mounting cavity. The locking surface is perpendicular to the extension direction of the wire passage. The displacement measuring device also includes a zero-point latch. The zero-point latch is fixedly sleeved on the detection rope located inside the zero-point adjustment component. The zero-point latch can abut against the locking surface.

[0011] Furthermore, the displacement measuring device includes: a locking block, which is disposed at the end of the zero-point adjustment component away from the first mounting cavity, and protrudes from the outer surface of the zero-point adjustment component; a locking buckle, which includes a first plate and a second plate arranged sequentially and sequentially along a direction away from the cable outlet, the first plate having a first clearance groove and the second plate having a second clearance groove, a locking space for accommodating the locking block being formed between the first plate and the second plate, and the locking buckle being detachably connected to the locking block; wherein, the end of the zero-point adjustment component away from the first mounting cavity has an opening, the opening communicating with the zero-point adjustment component, the opening for the zero-point locking buckle to pass through, and the zero-point locking buckle being groundably disposed with respect to the second plate.

[0012] Furthermore, the anchor claw includes: an anchor claw body, on which multiple hooks are arranged circumferentially around the anchor claw body; a threading channel and a threading port communicating with the threading channel, the threading channel being located inside the anchor claw body, and a detection rope being threaded through the threading channel and the threading port; and a fastener, the fastener being detachably connected to the threading port.

[0013] Furthermore, the detection mechanism includes at least two, which are spaced apart within the first mounting cavity; the detection rope includes at least two, which are correspondingly arranged with the at least two detection mechanisms; and the anchor claw includes at least two, which are correspondingly arranged with the at least two detection ropes.

[0014] A coal mine delamination detection device includes: a fixing device for fixing to the inner wall of a roadway, the fixing device having a connecting channel; a displacement measuring device and an anchor claw, the displacement measuring device being the aforementioned displacement measuring device, the end of the detection rope of the displacement measuring device passing through the connecting channel and connected to the anchor claw; wherein, a transition component is installed on the fixing device to allow the shell to switch between an unfolded state and a folded state relative to the fixing device.

[0015] Furthermore, the displacement measuring device includes at least two devices, which are arranged at circumferential intervals around the fixed device. Beneficial effects: 1. The adapter component is rotatably connected to the housing. By setting a rotatable connection structure between the housing and the adapter component, the housing of the displacement measuring device can freely switch between the unfolded working state and the folded storage state. During transportation, the operator can rotate the housing around the rotation axis of the adapter component to switch it from the unfolded state to the folded state. Folding the housing reduces the space occupied by the displacement measuring device. Multiple coal mine delamination detection devices can be stacked, increasing the number of coal mine delamination detection devices that can be transported in a single trip, improving portability and transportation efficiency. This solves the technical problem in related technologies that coal mine delamination detection devices occupy a large transportation space and have low transportation efficiency.

[0016] 2. By setting a positioning and locking structure at the folding hinge, when the shell is in the unfolded state, the positioning protrusion can be engaged with the positioning groove, thereby playing a locking role and locking the free state that can be folded up and down.

[0017] 3. When the zero-point latch moves, when the zero-point latch moves to the second plate and abuts, it can restrict the zero-point latch from moving further outward, thereby limiting the movement stroke of the zero-point latch, preventing the detection rope inside the shell from being pulled out excessively during installation, and also allowing the detection rope to obtain a fixed movement distance, thereby completing the initial value setting of the coal mine delamination detection equipment.

[0018] 4. The detection mechanism includes at least two components, which are spaced apart within the first mounting cavity; the detection rope includes at least two components, each corresponding to one of the detection ropes; the anchor claw includes at least two components, each corresponding to one of the anchor claws. At least two sets of detection mechanisms can be installed simultaneously, meaning at least two sets of detection components can be combined into a single detection box and protected by a single housing, making the installation process of the coal mine delamination detection device simpler and faster. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the coal mine delamination detection equipment used in this utility model embodiment; Figure 2 This is a top view of the first embodiment of the coal mine delamination detection equipment used in this utility model embodiment; Figure 3 yes Figure 2 AA section view in the middle; Figure 4 yes Figure 2 BB section view in the middle; Figure 5 This is a schematic diagram of the fixing device of the coal mine delamination detection equipment used in this embodiment of the utility model; Figure 6 This is a schematic diagram of the structure of the housing of the displacement measuring device used in this embodiment of the utility model; Figure 7 This is a schematic diagram of the locking mechanism of the displacement measuring device used in this embodiment of the utility model; Figure 8 This is a schematic diagram of the internal structure of the displacement measuring device used in this embodiment of the utility model; Figure 9 This is a schematic diagram of the linear reel structure of the displacement measuring device used in this embodiment of the utility model; Figure 10 This is a schematic diagram of the structure of the anchor claw of the displacement measuring device used in this embodiment of the utility model; Figure 11 This is a schematic diagram of the connection of the one-way locking buckle of the displacement measuring device used in this embodiment of the utility model; Figure 12 This is a schematic diagram of the structure of the second embodiment of the coal mine delamination detection equipment used in this utility model embodiment; Figure 13 This is a front view of the second embodiment of the coal mine delamination detection equipment used in this utility model.

[0020] The above figures include the following reference numerals: 1. Housing; 101. First mounting cavity; 102. Cable outlet hole; 11. Second connecting seat; 111. Second pivot hole; 12. Positioning groove; 2. Detection rope; 3. Anchor claw; 31. Anchor claw body; 32. Hook claw; 33. Cable threading channel; 34. Cable threading opening; 4. Adapter component; 41. First connecting seat; 411. First pivot hole; 412. Positioning protrusion; 42. Limiting groove; 421. First limiting surface; 422. Second limiting surface; 5. Pivot; 6. Zero-point adjustment component; 61. Wiring channel; 62. Locking surface; 63. Zero-point latch; 64. Locking block; 65. Opening; 7. Locking latch; 71. First plate; 72. Second plate; 721. First clearance groove; 722. Second clearance groove; 73. Locking space; 8. Fixing device; 81. Connecting channel; 91. Coil spring; 92. Circuit board; 93. Potentiometer; 94. Thread wheel; 96. Full-circuit dial; 97. Digital display unit; 98. One-way latch. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] According to an embodiment of this utility model, a displacement measuring device is provided. Please refer to [link / reference]. Figures 1 to 13 The device includes: a housing 1, which has a first mounting cavity 101 and a cable outlet 102 communicating with the first mounting cavity 101; a detection rope 2, at least a portion of which is disposed in the first mounting cavity 101, with one end of the detection rope 2 passing through the cable outlet 102 and connected to an anchor claw 3; a detection mechanism, which is disposed in the first mounting cavity 101 and is used to acquire the displacement of the detection rope 2, perform actions based on the displacement transmitted by the detection rope 2, and display the displacement of the detection rope 2; and a connecting component 4, which is rotatably connected to the housing 1 so that the housing 1 can switch between an unfolded state and a folded state relative to the connecting component 4.

[0023] It should be noted that the detection mechanism in this embodiment is a detection mechanism in the prior art. For example, the detection mechanism in this embodiment includes a reel 94, which is rotatably disposed in the first mounting cavity 101. At least a portion of the detection rope 2 is wound on the reel 94. When the detection rope 2 is displaced by an external force, the reel 94 rotates with the displacement of the detection rope 2. The reel 94 is provided with a scale, and the scale displays data corresponding to the displacement of the detection rope 2 according to the rotation of the reel 94. Alternatively, the displacement of the detection rope 2 can also be displayed digitally. For example, a potentiometer 93 can be connected to the reel 94. When the detection rope 2 is displaced by an external force, the reel 94 rotates accordingly, driving the potentiometer 93 to rotate. Thus, the rotation of the reel 94 is converted into a change in resistance value by the potentiometer 93, and then this change in resistance value is converted into an electrical signal (a change in voltage or current) by a circuit. The electrical signal is transmitted to the digital display unit 97, and the displacement is displayed on the digital display unit 97.

[0024] In some embodiments, the displacement measuring device further includes a full-circle dial 96 disposed in the first mounting cavity 101 and connected to the reel. The full-circle dial 96 is used to display the number of rotations of the reel 94.

[0025] In some embodiments, the detection rope 2 is directly connected to the anchor claw 3, and the other end is wound around the spool 94; the coil spring 91 is installed in the groove of the spool 94, and the shaft of the potentiometer 93 is inserted into the center of the spool 94; when the detection rope 2 is pulled out, the spool 94 will rotate and drive the potentiometer 93 to rotate synchronously. At this time, there are mechanical readings on the spool 94 and electrical signal readings on the potentiometer 93. The coil spring 91 is responsible for applying a reverse winding force to keep the detection rope 2 in a taut state.

[0026] Specifically, the housing 1 provides rigid support and physical protection for the internal components to prevent dust and moisture from damaging the detection mechanism. At least part of the detection rope 2 is disposed in the first mounting cavity 101, and one end of it passes through the outlet hole 102 and is connected to the anchor claw 3.

[0027] Specifically, when the surrounding rock of the roadway undergoes delamination displacement, the detection rope 2 is displaced by the action of external force. The detection mechanism obtains the displacement of the detection rope 2 and takes action based on the received displacement, such as driving the rotary wheel dial to deflect or updating the digital signal, so that the displacement measuring device can intuitively display the real-time displacement of the detection rope 2, and the on-site personnel can directly read the specific value of the delamination in the roadway.

[0028] Preferably, when the housing 1 is in the unfolded state, the extension direction of the adapter 4 is perpendicular to the extension direction of the housing 1. When the housing 1 is in the folded state, the adapter and the housing are folded together, and multiple coal mine delamination detection devices can be stacked.

[0029] Specifically, the adapter 4 is rotatably connected to the housing 1. By setting a rotatable connection structure between the housing 1 and the adapter 4, the housing 1 of the displacement measuring device can freely switch between the unfolded working state and the folded storage state. During transportation, the operator can rotate the housing 1 around the rotation axis of the adapter 4 to switch it from the unfolded state to the folded state. Folding the housing 1 reduces the space occupied by the displacement measuring device. Multiple coal mine delamination detection devices can be stacked, increasing the number of coal mine delamination detection devices that can be transported in a single trip, improving portability and transportation efficiency. This solves the technical problem in related technologies that coal mine delamination detection devices occupy a large amount of transportation space and have low transportation efficiency.

[0030] In the displacement measuring device of this embodiment, see Figure 3 , Figure 5 and Figure 6 The adapter 4 is provided with a first connecting seat 41, and a first rotating shaft hole 411 is provided in the first connecting seat 41. The housing 1 is provided with a second connecting seat 11 that matches the first connecting seat 41. The second connecting seat 11 is provided with a second rotating shaft hole 111 corresponding to the first rotating shaft hole 411. The displacement measuring device also includes a rotating shaft 5, which passes through the first rotating shaft hole 411 and the second rotating shaft hole 111 respectively.

[0031] By setting up a first connecting seat 41 and a second connecting seat 11 that match each other, and using a pivot 5 to pass through their pivot hole to achieve hinge connection, a stable and precise rotation fulcrum is provided for the housing 1, ensuring the reliability of unfolding and folding actions.

[0032] Preferably, there are two second connecting seats 11, which are respectively disposed on both sides of the first connecting seat 41.

[0033] Preferably, the rotating shaft 5 is a screw, and the first rotating shaft hole 411 is provided with an internal thread.

[0034] In the displacement measuring device of this embodiment, see Figure 3 , Figure 5 and Figure 6 A positioning protrusion 412 is provided on the first connecting seat 41, extending axially along the rotating shaft 5. A positioning groove 12 is provided on the outer surface of the housing 1 corresponding to the positioning protrusion 412. The positioning groove 12 is recessed, and when the housing 1 is in the unfolded state, the positioning protrusion 412 is embedded in the positioning groove 12. In this way, by providing a positioning locking structure at the folding hinge, when the housing 1 is in the unfolded state, the positioning protrusion 412 can be engaged with the positioning groove 12, thereby playing a locking role and locking the free state that allows for vertical folding.

[0035] Specifically, when the housing 1 rotates around the pivot 5 to the unfolded state, the positioning protrusion 412 slides axially into and is embedded in the positioning groove 12, forming a stop to prevent the housing 1 from continuing to rotate, ensuring that the housing 1 remains stably in the preset unfolded working position. Secondly, this positioning structure effectively prevents the housing 1 from accidentally rotating or loosening due to external vibration, impact, or its own weight in the unfolded state. The underground environment of coal mines is complex, and the equipment is easily affected by mining stress, mechanical disturbance, etc. during use. After the positioning protrusion 412 is embedded in the positioning groove 12, it forms a double constraint in the circumferential and axial directions, preventing the housing 1 from shifting during the measurement process.

[0036] In the displacement measuring device of this embodiment, see Figure 3 , Figure 5 and Figure 6 The adapter 4 has a limiting groove 42 extending along the axial direction of the rotating shaft 5. The limiting groove 42 includes a first limiting surface 421 and a second limiting surface 422 connected to each other. A preset angle is set between the first limiting surface 421 and the second limiting surface 422. When the housing 1 is in the unfolded state, the first limiting surface 421 abuts against the side of the housing 1 near the adapter 4, and the second limiting surface 422 abuts against the end face of the housing 1 near the adapter 4. By setting the limiting groove, when the housing 1 rotates to the unfolded position, its side abuts against the first limiting surface 421, achieving the final limitation of circumferential rotation. At the same time, its end face abuts against the second limiting surface 422, achieving precise positioning of the axial position. This can constrain the stroke of the rotating housing 1 and prevent it from rotating excessively.

[0037] Preferably, the second connecting seat 11 is disposed at the edge of the housing, and the limiting groove 42 is disposed corresponding to the frame of the housing. When the housing 1 is in the unfolded state, the first limiting surface 421 abuts against the side of the housing 1, and the second limiting surface 422 abuts against the top surface of the housing 1.

[0038] Preferably, depending on the shape of the shell, the included angle between the first limiting surface 421 and the second limiting surface 422 or the shape of the first limiting surface 421 and the second limiting surface 422 can be selectively changed. As long as the first limiting surface 421 and the second limiting surface 422 are respectively in contact with the shell, the limiting function can also be achieved.

[0039] Preferably, the housing 1 has a square structure, and the included angle between the first limiting surface and the second limiting surface is 90°.

[0040] In the displacement measuring device of this embodiment, see Figure 4 , Figure 6 , Figure 7A zero-point adjustment component 6 is installed in the outlet hole 102. The zero-point adjustment component 6 is hollow inside. A wire passage 61 communicating with the outlet hole 102 is opened at one end of the zero-point adjustment component 6 near the first mounting cavity 101. A locking surface 62 is provided at the other end of the wire passage 61 away from the first mounting cavity 101. The locking surface 62 is perpendicular to the extension direction of the wire passage 61. The displacement measuring device also includes a zero-point latch 63. The zero-point latch 63 is fixedly sleeved on the detection rope 2 located inside the zero-point adjustment component 6. The zero-point latch 63 can abut against the locking surface 62. By setting the zero-point adjustment component 6, when the zero-point latch 63 moves with the detection rope 2 to the position of the locking surface 62, the two come into contact. The vertically set locking surface 62 can effectively prevent the detection rope 2 from continuing to move into the housing, ensuring that the position of the zero-point latch 63 is fixed and preventing the coil spring inside the housing 1 from pulling the zero-point latch 63 into the first mounting cavity 101, so that the staff can know the zero-point position of the detection rope 2.

[0041] In the displacement measuring device of this embodiment, see Figure 4 , Figure 6 , Figure 7 The displacement measuring device includes: a locking block 64, which is disposed at the end of the zero-point adjustment component 6 away from the first mounting cavity 101, and protrudes from the outer surface of the zero-point adjustment component 6; and a locking buckle 7, which includes a first plate 71 and a second plate 72 arranged sequentially and sequentially along a direction away from the cable outlet 102. The first plate 71 has a first clearance groove 721, and the second plate 72 has a second clearance groove 722. A locking space 73 for accommodating the locking block 64 is formed between the first plate 71 and the second plate 72. The locking buckle 7 is detachably connected to the locking block 64. The end of the zero-point adjustment component 6 away from the first mounting cavity 101 has an opening 65, which communicates with the zero-point adjustment component 6 and allows the zero-point locking buckle 63 to pass through. The zero-point locking buckle 63 is abutting against the second plate 72.

[0042] Specifically, the first clearance groove 721 is used to avoid the zero-point adjustment component 6, and the second clearance groove 722 is used for the detection rope 2 to pass through.

[0043] By setting the locking buckle 7, a locking space 73 is formed between the first plate 71 and the second plate 72 to accommodate the zero-point adjustment component 6. On the one hand, the zero-point adjustment component 6 can be limited to prevent it from moving further into the outlet hole 102.

[0044] On the other hand, when the zero-point latch 63 moves, when the zero-point latch 63 moves to the second plate 72 and abuts, it can limit the zero-point latch 63 from moving further outward, thereby limiting the travel of the zero-point latch 63, preventing the detection rope 2 inside the housing 1 from being pulled out excessively during installation, and also allowing the detection rope 2 to obtain a fixed travel distance, thereby completing the initial value setting of the coal mine delamination detection equipment.

[0045] Specifically, the coal mine requires the coal mine delamination detection equipment to have a non-zero initial value in order to verify whether the coal mine delamination detection equipment is installed firmly and reliably. After the coal mine delamination detection equipment is installed, the fixing device 8 needs to be pulled down. If there is a reading (initial value) after pulling, it can be determined that the coal mine delamination detection equipment is installed without problems and the anchor claw 3 is firmly fixed in the anchor hole without loosening. If there is no reading (initial value) after pulling, it means that the anchor claw 3 is not firmly anchored in the anchor hole and is loose, thus judging that the installation of the coal mine delamination detection equipment has failed.

[0046] In some embodiments, one end of the zero-point latch 63 abuts against the locking surface 62, and the other end of the zero-point latch 63 is provided with a certain distance between it and the second plate 72. This distance is the distance that the zero-point latch 63 is allowed to move when the initial value is set. For example, if this distance is set to 5mm, when the anchor claw 3 is about to be pushed into place during the installation process, the zero-point latch 63 will be blocked by the limit card after pulling a 5mm movement stroke to prevent excessive force from being applied when pushing the anchor claw 3, causing the detection rope 2 to be pulled out excessively.

[0047] In some embodiments, the outer surface of the zero-point adjustment component 6 is provided with an external thread, and the zero-point adjustment component 6 is threadedly connected to the outlet hole 102. The zero-point adjustment component 6 is provided with a bolt head on one side of the first mounting cavity 101, that is, the bolt head is used as a locking block 64. During the factory and transportation process, the locking buckle 7 is snapped onto the locking block 64. After the coal mine delamination detection equipment is installed, the locking buckle 7 is removed.

[0048] In the displacement measuring device of this embodiment, see Figure 10 The anchor claw 3 includes: an anchor claw body 31, on which a plurality of hooks 32 are arranged circumferentially around the anchor claw body 31; a threading channel 33 and a threading opening 34 communicating with the threading channel 33, the threading channel 33 being disposed inside the anchor claw body 31, and a detection rope 2 being threaded through the threading channel 33 and the threading opening 34; and a fastener, the fastener being detachably connected to the threading opening 34.

[0049] By setting the fastener to be detachably connected to the threading port 34, the fastener can be easily removed, making it easier to remove and lock the detection rope 2, and making the operation more convenient.

[0050] In some embodiments, the fastener is a screw, and the fastener is threaded into the wire hole 34.

[0051] Preferably, the detection rope 2 is a steel wire rope.

[0052] In the displacement measuring device of this embodiment, see Figure 1 The device includes at least two detection mechanisms, which are spaced apart within the first mounting cavity 101; at least two detection ropes 2, each corresponding to one of the at least two detection mechanisms; and at least two anchor claws 3, each corresponding to one of the at least two detection ropes 2. This allows for the simultaneous installation of at least two sets of detection mechanisms, effectively merging at least two sets of detection components into a single detection box, protected by a single housing, making the installation of the coal mine delamination detection device simpler and faster.

[0053] In some embodiments, see Figure 1 The testing mechanism includes two components, and the anchor claw 3 and testing rope 2 also include two components. Figure 1 One embodiment provides a two-point delamination detection device. The displacement measuring device includes a circuit board 92, which converts and merges the potentiometer signals from at least two detection mechanisms and outputs them through a single cable.

[0054] In the coal mine delamination detection equipment of this embodiment, see... Figure 1 The coal mine delamination detection equipment includes: a fixing device 8 for fixing to the inner wall of the roadway, and a connecting channel 81 on the fixing device 8; a displacement measuring device and an anchor claw 3, wherein the displacement measuring device is the aforementioned displacement measuring device, and one end of the detection rope 2 of the displacement measuring device located outside the displacement measuring device passes through the connecting channel 81 and is connected to the anchor claw 3; wherein, a transition component 4 is installed on the fixing device 8 to allow the housing 1 to switch between an unfolded state and a folded state relative to the fixing device 8.

[0055] Specifically, the adapter 4 serves as the connecting medium between the displacement measuring device and the fixed device 8. The adapter 4 is mounted on the fixed device 8 and rotatably connected to the housing 1 of the displacement measuring device. This allows the housing 1 to switch between an unfolded and folded state relative to the fixed device 8. During transportation and carrying, the housing 1 can be folded and retracted relative to the fixed device 8, significantly reducing the overall size and space occupied by the equipment. Multiple coal mine delamination detection devices can be stacked, increasing the number of devices that can be transported in a single trip, improving portability and transportation efficiency, and solving the technical problems of large transport space and low transportation efficiency associated with coal mine delamination detection devices in related technologies.

[0056] The fixing device 8 includes a tray and an anchoring cylinder. The tray is connected to the anchoring cylinder and is located below the anchoring cylinder. The anchoring cylinder has a connecting channel 81 inside. Multiple barbs are provided at intervals in the circumferential direction on the outer wall of the anchoring cylinder. The anchoring cylinder is fixed in the anchor hole by the multiple barbs, and the tray is fixed to the inner wall of the roadway by the anchoring cylinder.

[0057] In some embodiments, a connecting component 4 is fixedly connected below the tray. The connecting component includes a connecting sleeve that extends along the axial direction of the anchoring cylinder. When the housing 1 is in the unfolded state, the extension direction of the connecting sleeve is perpendicular to the housing 1. The interior of the connecting sleeve is connected to the communicating channel 81 for the detection rope 2 to pass through. A first connecting seat 41 is provided on the outer circumferential surface of the connecting sleeve.

[0058] In some embodiments of coal mine delamination detection equipment, see Figure 1 The displacement measuring device includes at least two devices, which are arranged at circumferential intervals around the fixing device 8. In this way, at least two displacement measuring devices can be installed on the fixing device 8 simultaneously. For example, when the number of displacement measuring devices is 2, and each displacement measuring device has two detection structures and other components, a four-base-point delamination detection device is formed.

[0059] Optionally, the first connecting seat 41 includes at least two, and the at least two first connecting seats 41 are spaced apart around the outer peripheral surface of the connecting sleeve.

[0060] Understandably, if the diameter of the fixing device allows, the number of displacement measuring devices can be increased. For example, three displacement measuring devices can be set to form a 6-base-point delamination detector, and four displacement measuring devices can be set to form an 8-base-point delamination detector.

[0061] In some embodiments, the anchor claw 3 and the detection rope 2 outside the housing are stored in the anchor claw storage box during manufacturing and transportation.

[0062] In some embodiments, when installing the coal mine delamination detection equipment, the hole depth needs to be measured in advance with an installation rod. The installation can only proceed if the hole depth is qualified. If the hole depth is not qualified, it can be judged manually whether the installation is possible. If the hole depth is insufficient (the wire rope is too long), the length of the detection rope 2 needs to be shortened before installation.

[0063] Therefore, during the installation of the coal mine delamination detection equipment in this embodiment, the drilling depth must be qualified. For example, if the mine requires a drilling depth of 8 meters, the drilling depth of the construction personnel must be ≥8 meters. If the construction personnel drill less than 8 meters and only drill 7.5 meters, the anchor claw will reach the top when pushed to 7.5 meters during installation. However, there is still 0.5 meters of detection rope 2 that has not been pushed in. This will not form a taut state and will lead to installation failure.

[0064] If the hole depth is too small, the installation can be completed by shortening the detection rope 2. For example, if the required drilling depth is 8 meters, but the measured hole depth is only 7.5 meters, and the hole is still usable after manual judgment, the fasteners at the top of the anchor claw 3 need to be loosened, the detection rope 2 pulled out, 0.5 meters measured with the installation rod and then cut off, and the detection rope 2 is pressed down again with the fasteners. In this way, it can continue to be installed in the hole with a depth of 7.5 meters.

[0065] In some embodiments, if a hole collapses or a cavity appears in the middle of the anchor hole during installation, and the anchor claw 3 gets stuck halfway through the push, the anchor claw will be unable to move, neither being pushed nor pulled out.

[0066] The solution to this situation is to cut the detection rope 2 after the locking buckle 7 of the displacement measuring device, and re-connect a new detection rope 2 with a buckle (such as a wire rope buckle). At the same time, the empty anchor hole should no longer be used and a new hole should be drilled for installation.

[0067] In some embodiments, to address the above-mentioned special circumstances, a one-way locking buckle 98 is used to connect with the detection rope 2. The detection rope 2 located in the housing 1 is always connected to the one-way locking buckle 98. A second detection rope is also connected to the one-way locking buckle 98, and the end of the second detection rope is connected to the anchor claw 3. The second detection rope can only move in one direction and cannot move in the opposite direction. Using the one-way locking buckle 98 eliminates the need for a wire rope lock, making it easier to overlap or replace the detection rope 2. Furthermore, by utilizing the characteristic that the detection rope connected to the one-way locking buckle 98 can only move in one direction, the length of the second wire rope can be increased or decreased according to actual needs.

[0068] Specifically, the one-way lock 98 is a one-way lock in the prior art. The one-way lock 98 is equipped with a reverse adjustment button. The detection rope can only be adjusted in the reverse direction after the reverse adjustment button is pressed. Its specific structure will not be described in detail here.

[0069] In some embodiments, the operating steps for installing coal mine delamination detection equipment are as follows: 1. Push the anchoring cylinder of the fixing device 8 into the anchor hole of the top plate so that the tray of the fixing device 8 abuts against the top plate; 2. Open the anchor claw storage box, take out the anchor claw 3, and push the anchor claw 3 into the anchoring cylinder using the push rod; 3. Push the anchor claw 3 into place, tighten the detection rope 2 to complete the initial value setting, and then pull out the locking buckle 7 to complete the installation.

[0070] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0071] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0072] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0073] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0074] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A displacement measuring device, characterized in that, include: The housing (1) is provided with a first mounting cavity (101) and a wire outlet hole (102) communicating with the first mounting cavity (101). The detection rope (2) is at least partially disposed in the first mounting cavity (101), and one end of the detection rope (2) passes through the outlet hole (102) and is connected to the anchor claw (3). The detection mechanism is set in the first mounting cavity (101). The detection mechanism is used to obtain the displacement of the detection rope (2), perform actions according to the displacement transmitted by the detection rope (2), and display the displacement of the detection rope (2). The adapter (4) is rotatably connected to the housing (1) so that the housing (1) can switch between an unfolded state and a folded state relative to the adapter (4).

2. The displacement measuring device according to claim 1, characterized in that, The adapter (4) is provided with a first connecting seat (41), and a first rotating shaft hole (411) is provided in the first connecting seat (41). The housing (1) is provided with a second connecting seat (11) that matches the first connecting seat (41). A second rotating shaft hole (111) is provided in the second connecting seat (11) corresponding to the first rotating shaft hole (411). The displacement measuring device also includes a rotating shaft (5), which passes through the first rotating shaft hole (411) and the second rotating shaft hole (111) respectively.

3. The displacement measuring device according to claim 2, characterized in that, The first connecting seat (41) has a protruding positioning protrusion (412) that extends along the axial direction of the rotating shaft (5). The outer surface of the housing (1) has a positioning groove (12) corresponding to the positioning protrusion (412). The positioning groove (12) is recessed. When the housing (1) is in the unfolded state, the positioning protrusion (412) is embedded in the positioning groove (12).

4. The displacement measuring device according to claim 2, characterized in that, The adapter (4) has a limiting groove (42) which extends along the axial direction of the rotating shaft (5). The limiting groove (42) includes a first limiting surface (421) and a second limiting surface (422) that are connected to each other. A preset angle is provided between the first limiting surface (421) and the second limiting surface (422). When the housing (1) is in the unfolded state, the first limiting surface (421) abuts against the side of the housing (1) near the adapter (4), and the second limiting surface (422) abuts against the end face of the housing (1) near the adapter (4).

5. The displacement measuring device according to claim 1, characterized in that, A zero-point adjustment component (6) is installed in the outlet hole (102). The zero-point adjustment component (6) is hollow inside. A wire passage (61) communicating with the outlet hole (102) is opened at one end of the zero-point adjustment component (6) near the first mounting cavity (101). A locking surface (62) is provided at the other end of the wire passage (61) away from the first mounting cavity (101). The locking surface (62) is perpendicular to the extension direction of the wire passage (61). The displacement measuring device also includes a zero-point latch (63). The zero-point latch (63) is fixedly sleeved on the detection rope (2) located inside the zero-point adjustment component (6). The zero-point latch (63) can abut against the locking surface (62).

6. The displacement measuring device according to claim 5, characterized in that, The displacement measuring device includes: Locking block (64), the locking block (64) is disposed at one end of the zero point adjustment component (6) away from the first mounting cavity (101), the locking block (64) protrudes from the outer surface of the zero point adjustment component (6); The locking buckle (7) includes a first plate (71) and a second plate (72) arranged sequentially and sequentially along a direction away from the outlet hole (102). The first plate (71) has a first clearance groove (721), and the second plate (72) has a second clearance groove (722). A locking space (73) for accommodating the locking block (64) is formed between the first plate (71) and the second plate (72). The locking buckle (7) is detachably connected to the locking block (64). The zero-point adjustment component (6) has an opening (65) at one end away from the first mounting cavity (101). The opening (65) is connected to the zero-point adjustment component (6) and is used for the zero-point latch (63) to pass through. The zero-point latch (63) is abutted against the second plate (72).

7. The displacement measuring device according to claim 1, characterized in that, The anchor claw (3) includes: Anchor claw body (31), on which multiple hooks (32) are arranged circumferentially around the anchor claw body (31). The cable threading channel (33) and the cable threading port (34) communicating with the cable threading channel (33) are provided inside the anchor claw body (31), and the detection rope (2) is threaded through the cable threading channel (33) and the cable threading port (34). Fasteners are detachably connected to the threading port (34).

8. The displacement measuring device according to claim 1, characterized in that, The detection mechanism includes at least two, and the at least two detection mechanisms are spaced apart within the first mounting cavity (101); The detection rope (2) includes at least two, and at least two detection ropes (2) are set in a one-to-one correspondence with at least two detection mechanisms; The anchor claw (3) includes at least two, and at least two anchor claws (3) are set in a one-to-one correspondence with at least two detection ropes (2).

9. A coal mine delamination detection device, characterized in that, The coal mine delamination detection equipment includes: Fixing device (8), the fixing device (8) is used to fix to the inner wall of the tunnel, and the fixing device (8) is provided with a connecting channel (81). The displacement measuring device and the anchor claw (3) are provided. The displacement measuring device is the displacement measuring device according to any one of claims 1 to 8. The end of the detection rope (2) of the displacement measuring device located outside the displacement measuring device passes through the communication channel (81) and is connected to the anchor claw (3). The adapter (4) is mounted on the fixing device (8) so that the housing (1) can switch between an unfolded state and a folded state relative to the fixing device (8).

10. The coal mine delamination detection equipment according to claim 9, characterized in that, The displacement measuring device includes at least two, and the at least two displacement measuring devices are arranged circumferentially around the fixing device (8).

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