Monitoring management device for coal mine roof

The design of anchors and fixing components solved the problems of coal mine roof monitoring devices falling due to vibration and excessively long steel strands, thus achieving stable installation and accurate monitoring of the device.

CN224151585UActive Publication Date: 2026-04-21李晓鹏
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing coal mine roof monitoring and management devices are prone to falling due to vibration when fixed inside boreholes, affecting monitoring accuracy, and the excessive length of the steel strands affects installation.

Method used

Anchors and fixing components are used, and the components are fixed in the borehole by limiting strips, fixing nails and spring structure. The steel strands are collected by the collection components to ensure the stability of the device and the reasonable arrangement of the steel strands.

Benefits of technology

It effectively prevents the monitoring device from falling due to vibration, improves monitoring accuracy, and solves the problem of excessively long steel strands affecting installation by collecting components, ensuring normal installation and use of the device.

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Abstract

The utility model provides a monitoring management device for a coal mine roof, and belongs to the technical field of coal mine roof monitoring. Comprising an anchoring device, a sleeve is fixedly connected to the lower surface of the anchoring device, and a steel strand, a fixing assembly, a collecting assembly and a direct illuminating lamp are slidably connected into the sleeve. By arranging the fixing assembly, after the fixing assembly is placed in a drill hole and moved to a proper position, an operator holds the long rod by hand, the long rod is inserted into a hole in the lower surface of the anchor head, the contact block slides upwards, along with sliding of the contact block, the fixing nail extends out, the anchor head is clamped in the drill hole, and then the contact block continues to slide upwards; and the fixing assembly can be prevented from falling through the limiting strip, so that fixing of the fixing assembly is completed, and when the monitoring management device of the coal mine roof is fixed in a drill hole, the monitoring management device is prone to falling along with vibration of a coal mine, so that the monitoring accuracy is affected.
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Description

Technical Field

[0001] This utility model relates to the field of coal mine roof monitoring technology, and in particular to a monitoring and management device for coal mine roof. Background Technology

[0002] The coal mine roof refers to the rock strata above the coal seam in an underground coal mine. It is also called the coal seam roof and consists of the false roof, the immediate roof, and the main roof. The false roof is a thin rock layer tightly attached to the coal seam and is extremely prone to collapse. The immediate roof is located above either the false roof or the coal seam. The main roof, also called the primary roof, generally refers to a thick and hard rock layer located above the immediate roof. Therefore, the stability of the roof structure directly affects the safety of the coal mine tunnels.

[0003] However, existing devices do not solve the problems that when the monitoring and management device for the coal mine roof is fixed inside the borehole, the vibration of the coal mine can easily cause the monitoring and management device to fall, thus affecting the monitoring accuracy. Also, the steel strands are too long when installing the monitoring and management device, which affects the normal installation of the device. Therefore, this application provides a monitoring and management device for the coal mine roof to meet the requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a monitoring and management device for coal mine roof to solve the problem that the existing anchor head will fall due to the vibration of the coal mine, thus affecting the monitoring accuracy.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A monitoring and management device for coal mine roof includes an anchor, a sleeve fixedly connected to the lower surface of the anchor, a steel strand slidably connected inside the sleeve, a fixing component fixedly connected to one end of the steel strand, a collecting component fixedly connected to the other end of the steel strand, a fixing strip fixedly connected to the surface of the anchor, a transparent vernier caliper fixedly connected to the surface of the sleeve, a direct light fixedly connected to one side of the transparent vernier caliper, a switch fixedly connected to the surface of the sleeve, a battery fixedly connected to the surface of the sleeve, a connector slidably connected to the surface of the steel strand, a bolt passing through the internal thread of the connector, a connecting spring fixedly connected inside the sleeve, and a push plate fixedly connected to one end of the connecting spring.

[0007] Optionally, the fixing assembly includes an anchor head, a limiting strip, a fixing nail, a contact block, a limiting head, a fixing spring, and a limiting seat. The limiting strip is fixedly connected to the surface of the anchor head, the fixing nail is slidably connected inside the anchor head, the contact block is slidably connected inside the anchor head, the limiting head is fixedly connected to the surface of the contact block, the fixing spring is fixedly connected inside the anchor head, and one end of the fixing spring is fixedly connected to the limiting seat.

[0008] Optionally, the limiting strip is located near the lower part of the anchor head surface, and the fixing pin is located at the upper part of the limiting strip.

[0009] Optionally, the anchor head has a fixed groove inside, and the anchor head is slidably connected to the limiting seat through the fixed groove.

[0010] Optionally, the collection assembly includes a collection box, a collection shaft, a handle, a limiting tooth, a docking seat, and a docking block. The collection shaft is rotatably connected inside the collection box. A handle is fixedly connected to one end of the collection shaft. A limiting tooth is fixedly connected to the surface of the handle. A docking seat is fixedly connected to one side of the collection box. A docking block is slidably connected inside the docking seat.

[0011] Optionally, the docking seat is located on one side of the collection box near the limiting teeth, and the surface of the collection shaft is provided with a docking hole.

[0012] Optionally, the sleeve has a mating groove inside, and the sleeve is slidably connected to the push plate through the mating groove.

[0013] Optionally, the anchor has a through hole inside, through which the anchor is slidably connected to the steel strand.

[0014] Optionally, the switch is located on the sleeve surface near the transparent vernier scale, and the battery is located on the sleeve surface away from the transparent vernier scale.

[0015] Optionally, the switch is compatible with the direct light, and the surface of the sleeve is provided with a groove, through which the sleeve is fixedly connected to the direct light.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above solution, by setting up a fixing component, the fixing component is placed inside the borehole and moved to a suitable position. The operator holds a long rod and inserts it into the hole on the lower surface of the anchor head, causing the contact block to slide upward. As the contact block slides, the fixing nail extends and locks the anchor head inside the borehole. The contact block continues to slide upward until the fixing spring releases pressure, causing the limit seat and limit head to engage and fix. At the same time, the limit strip prevents the fixing component from falling, thus completing the fixing of the fixing component. This reduces the risk of the monitoring and management device on the coal mine roof falling due to the vibration of the coal mine when it is fixed inside the borehole, which would affect the monitoring accuracy. It achieves the effect of placing the fixing component in a suitable position inside the borehole and then using the fixing nail to reinforce the fixing component, making it less likely to fall.

[0018] By setting a switch, pressing the switch turns on the direct light, illuminating the transparent vernier scale for easy observation of the monitoring and management device. When observation is no longer needed, pressing the switch again turns off the direct light. By fixing one end of the steel strand to the collecting shaft, rotating the handle allows the collecting shaft to collect the steel strand. This reduces the possibility of the steel strand being too long and interfering with the normal installation of the monitoring and management device. It achieves the effect of collecting the steel strand when the monitoring and management device needs to be installed, thus shortening the steel strand. After the monitoring and management device is installed, after the steel strand has been discharged a certain distance, the sliding docking block locks the limiting teeth, preventing the steel strand from being discharged further, thus collecting the steel strand and avoiding its excessive length. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1 A three-dimensional structural diagram of a monitoring and management device for the roof of a coal mine.

[0021] Figure 2 A schematic diagram of the anchor structure for a monitoring and management device for the roof of a coal mine.

[0022] Figure 3 Exploded structural diagram of the fixing components for a monitoring and management device for the roof of a coal mine;

[0023] Figure 4 A schematic diagram of the data collection components for a monitoring and management device used on the roof of a coal mine.

[0024] Figure 5 A schematic diagram of the exploded structure of a transparent vernier caliper used for monitoring and management of the coal mine roof.

[0025] Figure label:

[0026] 1. Anchor; 2. Sleeve; 3. Steel strand; 4. Fixing assembly; 401. Anchor head; 402. Limiting strip; 403. Fixing nail; 404. Contact block; 405. Limiting head; 406. Fixing spring; 407. Limiting seat; 5. Collection assembly; 501. Collection box; 502. Collection shaft; 503. Handle; 504. Limiting tooth; 505. Connecting seat; 506. Connecting block; 6. Fixing strip; 7. Transparent vernier caliper; 8. Direct light; 9. Switch; 10. Battery; 11. Connector; 12. Bolt; 13. Connecting spring; 14. Push plate.

[0027] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0028] The following is a detailed description of a monitoring and management device for coal mine roof provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0029] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0030] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0031] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0032] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0033] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, an embodiment of this utility model provides a monitoring and management device for coal mine roof, including an anchor 1. A sleeve 2 is fixedly connected to the lower surface of the anchor 1, and a steel strand 3 is slidably connected inside the sleeve 2. A through hole is provided inside the anchor 1, through which the anchor 1 is slidably connected to the steel strand 3. A fixing component 4 is fixedly connected to one end of the steel strand 3. The fixing component 4 includes an anchor head 401, a limiting strip 402, a fixing nail 403, a contact block 404, a limiting head 405, a fixing spring 406, and a limiting seat 407. The limiting strip 402 is fixedly connected to the surface of the anchor head 401, and the fixing nail 403 is slidably connected inside the anchor head 401. The contact block 404 is slidably connected inside the anchor head 401, and a fixing spring 406 is fixedly connected to the surface of the contact block 404. The anchor head 401 has a fixed spring 406 inside the limiting head 405 and the anchor head 401. One end of the fixed spring 406 is fixedly connected to the limiting seat 407. The limiting strip 402 is located on the surface of the anchor head 401 near the lower part. The fixing nail 403 is located on the upper part of the limiting strip 402. The anchor head 401 has a fixed groove inside and is slidably connected to the limiting seat 407 through the fixed groove. The anchor 1 has a fixed strip 6 fixedly connected to the surface. The steel strand 3 has a connector 11 slidably connected to the surface. The connector 11 has a bolt 12 threaded through its internal thread. The sleeve 2 has a mating spring 13 fixedly connected inside and a push plate 14 fixedly connected to one end of the mating spring 13. The sleeve 2 has a mating groove inside and is slidably connected to the push plate 14 through the mating groove.

[0034] By placing the fixing component 4 inside the borehole and moving it to a suitable position, the operator holds a long rod and inserts it into the hole on the lower surface of the anchor head 401, causing the contact block 404 to slide upward. As the contact block 404 slides, the fixing nail 403 extends, securing the anchor head 401 inside the borehole. The contact block 404 continues to slide upward until the fixing spring 406 releases pressure, causing the limiting seat 407 to engage with the limiting head 405. At the same time, the limiting strip 402 prevents the fixing component 4 from falling, thus completing the fixation of the fixing component 4. This reduces the risk of the monitoring and management device on the coal mine roof falling due to vibrations inside the borehole, which could affect the accuracy of monitoring. This achieves the effect of placing the fixing component 4 in a suitable position inside the borehole and then using the fixing nail 403 to provide secondary reinforcement, making it less prone to falling.

[0035] After fixing the two fixing components 4 respectively, the anchor 1 is inserted into the borehole and then fixed by the fixing strip 6. By tightening the steel strand 3, the connector 11 is slid to fit against the push plate 14, and the bolt 12 is tightened to connect and fix the steel strand 3 to the connector 11. When the roof rock layer delamination occurs, the deep base point anchor 401 and the shallow base point anchor 401 will have a displacement difference. The steel strand 3 will drive the connector 11 and the push plate 14 to slide, thereby completing the monitoring of the coal mine roof.

[0036] like Figure 4 and Figure 5 As shown, the other end of the steel strand 3 is fixedly connected to a collecting assembly 5. The collecting assembly 5 includes a collecting box 501, a collecting shaft 502, a handle 503, a limiting tooth 504, a docking seat 505, and a docking block 506. The collecting shaft 502 is rotatably connected inside the collecting box 501. One end of the collecting shaft 502 is fixedly connected to the handle 503. The limiting tooth 504 is fixedly connected to the surface of the handle 503. The docking seat 505 is fixedly connected to one side of the collecting box 501. The docking block 506 is slidably connected inside the docking seat 505. The docking seat 505 is located in the collecting box. On one side of 501, near the limiting tooth 504, the surface of the collecting shaft 502 has a mating hole. A transparent vernier caliper 7 is fixedly connected to the surface of the sleeve 2. A direct light 8 is fixedly connected to one side of the transparent vernier caliper 7. A switch 9 is fixedly connected to the surface of the sleeve 2. The switch 9 and the direct light 8 are compatible with each other. A groove is opened on the surface of the sleeve 2. The sleeve 2 is fixedly connected to the direct light 8 through the groove. A battery 10 is fixedly connected to the surface of the sleeve 2. The switch 9 is located on the surface of the sleeve 2 near the transparent vernier caliper 7. The battery 10 is located on the surface of the sleeve 2 away from the transparent vernier caliper 7.

[0037] By pressing switch 9, the direct light 8 is turned on, illuminating the transparent vernier scale 7, making it easier for operators to observe the monitoring and management device. When observation is no longer needed, press switch 9 again to turn off the direct light 8. By fixing one end of the steel strand 3 to the collecting shaft 502, the collecting shaft 502 collects the steel strand 3 by rotating the handle 503. This reduces the possibility of the steel strand 3 being too long and affecting the normal installation of the monitoring and management device. It achieves the effect of collecting the steel strand 3 through the collecting component 5 when the monitoring and management device needs to be installed, thus shortening the steel strand 3. After the monitoring and management device is installed, after the steel strand 3 has been discharged a certain distance, the sliding docking block 506 locks the limiting tooth 504, preventing the steel strand 3 from being discharged. This allows the steel strand 3 to be collected and prevents it from being too long.

[0038] The working principle of the technical solution provided by this utility model is as follows: After placing the fixing component 4 into the borehole and moving it to a suitable position, the operator holds a long rod and inserts the long rod into the hole on the lower surface of the anchor head 401, causing the contact block 404 to slide upward. As the contact block 404 slides, the fixing nail 403 extends out, locking the anchor head 401 inside the borehole. The contact block 404 continues to slide upward until the fixing spring 406 releases pressure, causing the limiting seat 407 to engage with the limiting head 405. At the same time, the limiting strip 402 prevents the fixing component 4 from falling, thus completing the fixing of the fixing component 4. After fixing the two fixing components 4 respectively, the anchor 1 is inserted into the borehole, and then the anchor 1 is fixed by the fixing strip 6. By tightening the steel strand 3, sliding the connector 11 to fit against the push plate 14, and tightening the bolt 12, the steel strand 1 is secured. The stranded wire 3 is connected and fixed to the connector 11. When the roof strata delaminate, the deep base point anchor head 401 and the shallow base point anchor head 401 will have a displacement difference. The steel stranded wire 3 drives the connector 11 and the push plate 14 to slide, thereby completing the monitoring of the coal mine roof. By pressing the switch 9, the direct light 8 is turned on to illuminate the transparent vernier scale 7, making it easy for the operator to observe the monitoring and management device. When observation is not needed, press the switch 9 again to turn off the direct light 8. By fixing one end of the steel stranded wire 3 to the collecting shaft 502, the collecting shaft 502 collects the steel stranded wire 3 by rotating the handle 503. After the monitoring and management device is installed, after the steel stranded wire 3 has been discharged a certain distance, the sliding docking block 506 is used to lock the limiting tooth 504, preventing the steel stranded wire 3 from being discharged. This allows the steel stranded wire 3 to be collected to avoid it being too long.

[0039] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A monitoring management device for a coal mine roof, characterized by, The device includes an anchor, a sleeve fixedly connected to its lower surface, a steel strand slidably connected inside the sleeve, a fixing component fixedly connected to one end of the steel strand, a collecting component fixedly connected to the other end of the steel strand, a fixing strip fixedly connected to the surface of the anchor, a transparent vernier caliper fixedly connected to the surface of the sleeve, a direct light fixedly connected to one side of the transparent vernier caliper, a switch fixedly connected to the surface of the sleeve, a battery fixedly connected to the surface of the sleeve, a connector slidably connected to the surface of the steel strand, a bolt passing through the internal thread of the connector, a butt spring fixedly connected inside the sleeve, and a push plate fixedly connected to one end of the butt spring.

2. The monitoring management device for coal mine roof according to claim 1, characterized in that, The fixing assembly includes an anchor head, a limiting strip, a fixing nail, a contact block, a limiting head, a fixing spring, and a limiting seat. The limiting strip is fixedly connected to the surface of the anchor head, the fixing nail is slidably connected to the inside of the anchor head, the contact block is slidably connected to the inside of the anchor head, the limiting head is fixedly connected to the surface of the contact block, the fixing spring is fixedly connected to the inside of the anchor head, and one end of the fixing spring is fixedly connected to the limiting seat.

3. The monitoring management device for coal mine roof according to claim 2, characterized in that, The limiting strip is located on the lower part of the anchor head surface, and the fixing pin is located on the upper part of the limiting strip.

4. The monitoring management device for coal mine roof according to claim 2, characterized in that, The anchor head has a fixed groove inside, and the anchor head is slidably connected to the limiting seat through the fixed groove.

5. The monitoring management device for coal mine roof according to claim 1, characterized in that, The collection assembly includes a collection box, a collection shaft, a handle, a limiting tooth, a docking seat, and a docking block. The collection shaft is rotatably connected inside the collection box. A handle is fixedly connected to one end of the collection shaft. A limiting tooth is fixedly connected to the surface of the handle. A docking seat is fixedly connected to one side of the collection box. A docking block is slidably connected inside the docking seat.

6. The monitoring management device for coal mine roof according to claim 5, characterized in that, The docking seat is located on one side of the collection box near the limiting teeth, and the surface of the collection shaft is provided with docking holes.

7. The monitoring management device for coal mine roof according to claim 1, characterized in that, The sleeve has a mating groove inside, and the sleeve is slidably connected to the push plate through the mating groove.

8. The monitoring management device for coal mine roof according to claim 1, characterized in that, The anchor has a through hole inside, through which it is slidably connected to the steel strand.

9. The monitoring management device for coal mine roof according to claim 1, characterized in that, The switch is located on the sleeve surface near the transparent vernier scale, and the battery is located on the sleeve surface away from the transparent vernier scale.

10. The monitoring management device for coal mine roof according to claim 1, characterized in that, The switch is compatible with the direct light, and the surface of the sleeve is provided with a groove, through which the sleeve is fixedly connected to the direct light.