Underground coal mine anti-interference communication device

Abstract

The invention discloses an underground coal mine anti-interference communication device, and relates to the technical field of underground coal mine anti-interference communication, the underground coal mine anti-interference communication device comprises a same-frequency repeater used for underground coal mine anti-interference communication, the same-frequency repeater is provided with an antenna, and the end part of the antenna is provided with an end head. In the process that the same-frequency repeater is used for assisting coal mine underground anti-interference communication, weak signals from coal mine underground wireless communication equipment can be received more effectively through the antenna, the purpose of anti-interference communication is achieved, and in the using process of the same-frequency repeater, the weak signals can be received more effectively through the antenna. Through mutual cooperation of the anti-falling extrusion assembly, the pulling assembly and other parts, the probability of deflection of the antenna due to stress is reduced, the deflected antenna and the end can be pulled to perform reset rotation after deflection of the antenna, it is guaranteed that the antenna is always kept in the state after installation and adjustment in the anti-interference use process, and the anti-interference performance of the antenna is improved. And the anti-interference effect of the antenna on a specified area is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-interference communication in coal mines, and specifically to an anti-interference communication device for coal mines. Background Technique

[0002] There are a large number of electrical equipment in coal mines, such as coal shearers, roadheaders, ventilators, transportation equipment, etc. These equipment will generate strong electromagnetic interference during operation. For example, high-frequency electromagnetic pulses will be generated at the moment of starting and stopping of the motor. Its frequency spectrum range is wide and may cover the working frequency of the same-frequency repeater, affecting the normal transmission of signals. In addition, the power lines and control lines of electrical equipment will also radiate electromagnetic interference outward, affecting the performance of the same-frequency repeater and its surrounding communication equipment through conduction and radiation methods.

[0003] The same-frequency repeater is an auxiliary device for reducing interference communication in coal mines. The same-frequency repeater is equipped with a high-sensitivity receiving antenna and a low-noise amplifier. In the complex electromagnetic environment of coal mines, even weak signals can be effectively captured by the receiving antenna, and a high-performance filter is integrated inside the repeater, which can accurately filter the received and transmitted signals. At the receiving end, the filter can filter out clutter, interference signals and other unwanted frequency components in the signal, and only allow signals of the target frequency to pass through. For example, for the high-frequency electromagnetic pulse interference generated by the operation of electrical equipment in coal mines, the filter can effectively block it outside, ensuring that the received signal is pure. At the transmitting end, the filter can also optimize the signal to be transmitted, remove components such as harmonics that may cause interference, make the transmitted signal more stable and pure, reduce interference to other equipment, and at the same time improve the anti-interference ability of its own signal.

[0004] In the process of using the same-frequency repeater to reduce interference communication in coal mines, the antenna on the same-frequency repeater usually has a high gain, which enables it to more effectively receive weak signals from wireless communication equipment in coal mines (such as miner walkie-talkies, sensors, etc.) and achieve the purpose of anti-interference communication. During the installation and use of the antenna on the same-frequency repeater, due to the wind force inside the coal mine, some antennas will cause the installed antenna to deflect. When the antenna deflects, the signal radiation direction will change accordingly. If the antenna was originally facing the main working area to be covered, the signal strength in this area may be greatly reduced or even a signal coverage blind area may appear after deflection, affecting the effect of anti-interference communication. For this reason, we propose an anti-interference communication device for coal mines. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-interference communication device for coal mines to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: An anti-interference communication device for coal mines underground, including a co-frequency repeater for anti-interference communication in coal mines underground. An antenna is provided on the co-frequency repeater. A head is provided at the end of the antenna. A jack for inserting and connecting the head is provided on the co-frequency repeater. It also includes a lifting plate arranged outside the co-frequency repeater. The lifting plate is below the head of the installed antenna. An installation seat is detachably installed on the outside of the co-frequency repeater through bolts. The lifting plate is above the installation seat. An elevating assembly for lifting the lifting plate and a guiding assembly for guiding during the lifting process are provided on the installation seat. An anti-disengagement extrusion assembly for preventing the head from disengaging after being inserted and installed is provided on the lifting plate. A pulling assembly for preventing the head from shifting and rotating after being inserted and installed is provided on the installation seat.

[0007] Preferably, the pulling assembly includes a sleeve arranged between the installation seat and the head. A pull rod is slidably connected to the sleeve. One end of the pull rod is located inside the sleeve and is fixed with an induction plate. The other end of the pull rod is located outside the sleeve and is fixed with a first hook. A second hook is fixed at one end of the sleeve. Multiple groups of first hanging rings are fixed on the outside of the head, and each group of first hanging rings is arranged in a circular array on the outside of the head. The first hook is hung and connected with the lowermost first hanging ring on the head. A second hanging ring is installed at the upper end of the installation seat. The second hook is hung and connected with the second hanging ring. A second spring is sleeved on the outside of the pull rod, and the two ends of the second spring are respectively connected with the induction plate and the inner wall of the sleeve.

[0008] Preferably, a distance sensor for sliding and identifying the induction plate is installed inside the sleeve, and the distance sensor is below the induction plate.

[0009] Preferably, two groups of anti-disengagement extrusion assemblies are symmetrically arranged on the lifting plate. The anti-disengagement extrusion assembly includes an L-shaped plate fixed on one side of the lifting plate. One side of the L-shaped plate is connected with an extrusion plate through an elastic force assembly. The extrusion plate is above the lifting plate. An inclined transmission plate for abutting against the end of the head is fixed at the upper end of the extrusion plate. An adjusting assembly for adjusting the extrusion force on the head after sliding and identifying the induction plate is provided on the lifting plate.

[0010] Preferably, the elastic force assembly includes multiple groups of mounting rods slidably connected to the L-shaped plate. One end of each group of mounting rods is fixed with the extrusion plate. A strip-shaped plate is arranged on one side of the L-shaped plate. One end of each group of mounting rods is fixed with the strip-shaped plate. A first spring is sleeved on the outside of each group of mounting rods, and the two ends of the first spring are respectively connected with the extrusion plate and the L-shaped plate.

[0011] Preferably, the adjusting assembly includes a support frame fixed to one side of the lifting plate. A push plate is rotatably connected to the support frame through a mounting shaft. A fixing pin for abutting and driving against the inner side of the strip plate is fixed to the upper end of the push plate. A driving assembly for driving the push plate is arranged on the lifting plate.

[0012] Preferably, the driving assembly includes an L-shaped frame fixed to the lower end of the lifting plate. An electromagnet and an iron block are respectively installed on one side of the L-shaped frame opposite to the push plate.

[0013] Preferably, the lifting assembly includes a threaded rod rotatably connected to the upper end of the mounting seat. A threaded tube is threadedly engaged with the threaded rod. One end of the threaded tube is fixed to the lower end of the lifting plate. A driving motor for driving the threaded rod is installed at the lower end of the mounting seat.

[0014] Preferably, the guiding assembly includes a sleeve fixed to the lower end of the lifting plate. A sliding rod is slidably connected to the sleeve. One end of the sliding rod is fixed to the mounting seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: During the process of using the co-frequency repeater to assist anti-interference communication in coal mines, the antenna can more effectively receive weak signals from wireless communication devices in coal mines, achieving the purpose of anti-interference communication. During the use of the co-frequency repeater, through the mutual cooperation of components such as the anti-disconnection extrusion assembly and the pulling assembly, while reducing the probability of the antenna being deflected due to force, after the antenna is deflected, the deflected antenna and the end head can be pulled to rotate back to their original positions, ensuring that the antenna always maintains the state after installation and adjustment during the anti-interference use, and ensuring the anti-interference effect of the antenna on the specified area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall external structure of the present invention; Figure 2 is a schematic diagram of the antenna structure of the present invention; Figure 3 is a schematic diagram of the positional relationship among the mounting seat, the end head and the pulling assembly of the present invention; Figure 4 is a schematic diagram of the pulling assembly structure of the present invention; Figure 5 is a schematic diagram of the lifting assembly and the guiding assembly structure of the present invention; Figure 6 is a schematic diagram of the anti-disconnection extrusion assembly and the elastic force assembly structure of the present invention; Figure 7 is a schematic diagram of the driving assembly structure of the present invention; Figure 8 is a schematic diagram of the adjusting assembly structure of the present invention; Figure 9 Schematic diagram of the transmission during the adjustment process of the adjustment component of the present invention; Figure 10 Schematic diagram of the state where the end and the antenna of the present invention do not deflect; Figure 11 Schematic diagram of a state after the end and the antenna of the present invention deflect; Figure 12 Schematic diagram of another state after the end and the antenna of the present invention deflect.

[0017] In the figure: 101 - co-frequency repeater; 102 - antenna; 103 - end; 2 - lifting plate; 301 - L-shaped plate; 302 - extrusion plate; 303 - oblique transmission plate; 401 - mounting rod; 402 - strip plate; 403 - first spring; 5 - mounting seat; 601 - threaded rod; 602 - threaded tube; 603 - drive motor; 701 - sleeve; 702 - sliding rod; 801 - sleeve; 802 - pull rod; 803 - induction plate; 804 - first hook; 805 - second hook; 806 - first hanging ring; 807 - second hanging ring; 808 - second spring; 9 - distance sensor; 1001 - support frame; 1002 - mounting shaft; 1003 - push plate; 1004 - fixing pin; 1101 - L-shaped frame; 1102 - electromagnet; 1103 - iron block. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment

[0019] Please refer to Figures 1-12 , a coal mine underground anti-interference communication device shown in the figure, including a co-frequency repeater 101 for coal mine underground anti-interference communication. An antenna 102 is provided on the co-frequency repeater 101, and an end 103 is provided at the end of the antenna 102. A jack for inserting and connecting the end 103 is provided on the co-frequency repeater 101; It should be noted here that: the co-frequency repeater 101, as a device for coal mine underground anti-interference communication, is prior art in this application, and its working principle and working connection method will not be further elaborated; It further includes a lifting plate 2 arranged outside the same-frequency repeater 101. The lifting plate 2 is located below the end 103 of the antenna 102 after installation. A mounting seat 5 is detachably installed on the outside of the same-frequency repeater 101 through bolts. The lifting plate 2 is located above the mounting seat 5. A lifting component for lifting the lifting plate 2 and a guiding component for guiding during the lifting process are arranged on the mounting seat 5. An anti-detachment extrusion component for preventing the detachment of the end 103 after insertion and installation is arranged on the lifting plate 2. A pulling component for preventing the end 103 after insertion and installation from shifting and rotating is arranged on the mounting seat 5; It should be noted here that during the process of using the same-frequency repeater 101 to assist in anti-interference communication in coal mines, the antenna 102 can more effectively receive weak signals from wireless communication devices in coal mines, achieving the purpose of anti-interference communication. And during the use of the same-frequency repeater 101, through the mutual cooperation of components such as the anti-detachment extrusion component and the pulling component, while reducing the probability of the antenna 102 deflecting due to force, after the antenna 102 deflects, the deflected antenna 102 and the end 103 can be pulled to rotate back to the original position, ensuring that the antenna 102 always maintains the state after installation and adjustment during the anti-interference use, and ensuring the anti-interference effect of the antenna 102 on the specified area.

[0020] Preferably, the pulling component includes a sleeve 801 arranged between the mounting seat 5 and the end 103. A pull rod 802 is slidably connected to the sleeve 801. One end of the pull rod 802 is located inside the sleeve 801 and is fixed with an induction plate 803. The other end of the pull rod 802 is located outside the sleeve 801 and is fixed with a first hook 804. A second hook 805 is fixed at one end of the sleeve 801. A plurality of groups of first hanging rings 806 are fixed on the outside of the end 103, and each group of first hanging rings 806 is arranged in a circular array on the outside of the end 103. The first hook 804 is hung and connected with the lowermost first hanging ring 806 on the end 103. A second hanging ring 807 is installed at the upper end of the mounting seat 5. The second hook 805 is hung and connected with the second hanging ring 807. A second spring 808 is sleeved on the outside of the pull rod 802, and the two ends of the second spring 808 are respectively connected with the induction plate 803 and the inner wall of the sleeve 801; A distance sensor 9 for slidably identifying the induction plate 803 is installed inside the sleeve 801, and the distance sensor 9 is located below the induction plate 803; It should be noted here that after the antenna 102 is installed and adjusted, the second hook 805 at the end of the sleeve 801 is hung and connected to the second hanging ring 807 at the upper end of the mounting base 5. After the hanging connection, the pull rod 802 is pulled away from the sleeve 801 to deform the second spring 808 to generate elastic force. During the pulling process, the first hook 804 at one end of the pull rod 802 is hung and connected to the first hanging ring 806 at the lowermost part outside the end head 103. After the hanging connection, through the elastic force of the second spring 808 and the connection of the second hook 805, the second hanging ring 807, the pull rod 802, the first hook 804 and the first hanging ring 806, the end head 103 on the antenna 102 is pulled, further reducing the probability of the antenna 102 deflecting under force. When the external force received by the antenna 102 is too large to cause the antenna 102 to deflect, through the deflection rotation of the end head 103 and the connection of the first hook 804 and the first hanging ring 806, the pull rod 802 is forced to further slide outward on the sleeve 801. During the sliding process of the pull rod 802, the induction plate 803 is pulled to further move away from the distance sensor 9 inside the sleeve 801, and it is judged that the antenna 102 deflects at this time; It should be noted here that a controller is installed inside the sleeve 801, and the controller is electrically connected to the distance sensor 9 and the electromagnet 1102. Among them, the controller, the distance sensor 9 and the electromagnet 1102 are common operating components in distance recognition and electromagnetic transmission. In this application, they are regarded as prior art and will not be elaborated here.

[0021] Preferably, two groups of anti - detachment and extrusion components are symmetrically arranged on the lifting plate 2. The anti - detachment and extrusion components include an L - shaped plate 301 fixed to one side of the lifting plate 2. One side of the L - shaped plate 301 is connected to an extrusion plate 302 through an elastic component. The extrusion plate 302 is located above the lifting plate 2. An inclined transmission plate 303 for abutting against the end of the end head 103 is fixed to the upper end of the extrusion plate 302. An adjustment component for adjusting the extrusion force on the end head 103 after sliding recognition of the induction plate 803 is arranged on the lifting plate 2; It should be noted here that: through the lifting component and the guiding component, the lifting plate 2 is driven to move upward. During the upward movement of the lifting plate 2, due to the connection between the L-shaped plate 301 and the mounting rod 401, the pressing plate 302 moves upward synchronously. During the upward movement of the pressing plate 302, the inclined transmission plate 303 abuts against the end of the upper end 103 of the antenna 102. During the abutting process, the inclined transmission plate 303 and the pressing plate 302 are pushed to move away from the end 103 under force, and the first spring 403 is deformed under force to generate elastic force. After the lifting plate 2 and the pressing plate 302 move upward, through the elastic force of the first spring 403, the pressing plate 302 is pushed to keep abutting against the end 103 of the antenna 102. Through the abutting effect, the anti-loosening effect of pressing the connected antenna 102 is achieved, and through the abutting between the pressing plate 302 and the end of the upper end 103 of the antenna 102, the probability of the antenna 102 deflecting under force is reduced.

[0022] Preferably, the elastic force component includes a plurality of groups of mounting rods 401 slidably connected to the L-shaped plate 301. One end of each group of mounting rods 401 is fixed to the pressing plate 302. A strip-shaped plate 402 is provided on one side of the L-shaped plate 301. One end of each group of mounting rods 401 is fixed to the strip-shaped plate 402. A first spring 403 is sleeved outside each group of mounting rods 401. The two ends of the first spring 403 are respectively connected to the pressing plate 302 and the L-shaped plate 301. It should be noted here that: through the plurality of groups of mounting rods 401, the telescopic movement of the pressing plate 302 is guided. Through the elastic force of the first spring 403 and the connection of the mounting rods 401, it is convenient to push the pressed pressing plate 302.

[0023] Preferably, the adjusting component includes a support frame 1001 fixed to one side of the lifting plate 2. A push plate 1003 is rotatably connected to the support frame 1001 through a mounting shaft 1002. A fixing pin 1004 for abutting and transmitting with the inner side of the strip-shaped plate 402 is fixed to the upper end of the push plate 1003. A driving component for driving the push plate 1003 is provided on the lifting plate 2; the driving component includes an L-shaped frame 1101 fixed to the lower end of the lifting plate 2. Electromagnets 1102 and iron blocks 1103 are respectively installed on the sides of the L-shaped frame 1101 opposite to the push plate 1003. It should be noted here that: When the electromagnet 1102 is energized, the energized electromagnet 1102 generates a magnetic force between it and the iron block 1103, causing the push plate 1003 to be forced to rotate around the mounting shaft 1002. During the rotation process, through the abutting action of the fixing pin 1004 against one side of the strip plate 402, the strip plate 402 is pushed to move away from the L-shaped plate 301. During the movement of the strip plate 402, through the connection of each group of mounting rods 401, the pressing plate 302 is pulled to move away from the end of the end head 103. Through the movement of the pressing plate 302, the pressing force on the end head 103 is reduced.

[0024] Preferably, the lifting assembly includes a threaded rod 601 rotatably connected to the upper end of the mounting base 5. A threaded tube 602 is threadedly engaged with the threaded rod 601. One end of the threaded tube 602 is fixed to the lower end of the lifting plate 2. A driving motor 603 for driving the threaded rod 601 is installed at the lower end of the mounting base 5; The guiding assembly includes a sleeve 701 fixed to the lower end of the lifting plate 2. A sliding rod 702 is slidably connected to the sleeve 701. One end of the sliding rod 702 is fixed to the mounting base 5; It should be noted here that: By the driving motor 603, the threaded rod 601 is driven to rotate. During the rotation of the threaded rod 601, through the mutual meshing transmission between the threaded rod 601 and the threaded tube 602 and the sliding guiding action of the sleeve 701 and the sliding rod 702, the stressed lifting plate 2 performs a lifting movement.

[0025] In this solution: A coal mine underground anti-interference communication device includes the following steps: During the process of using the same-frequency repeater 101 to assist in coal mine underground anti-interference communication, the same-frequency repeater 101 is installed at a designated position. After the installation is completed, the end 103 of the antenna 102 is inserted into the jack of the same-frequency repeater 101. During the insertion of the antenna 102, by rotating the end 103, the use angle of the antenna 102 is adjusted. After the insertion installation and use angle adjustment of the antenna 102, the antenna 102 can more effectively receive weak signals from coal mine underground wireless communication devices (such as miner walkie-talkies, sensors, etc.), achieving the purpose of anti-interference communication; After the antenna 102 is installed and adjusted, the lifting plate 2 is driven to move upward through the lifting assembly and the guiding assembly. During the upward movement of the lifting plate 2, due to the connection between the L-shaped plate 301 and the mounting rod 401, the pressing plate 302 moves upward synchronously. During the upward movement of the pressing plate 302, the inclined transmission plate 303 abuts against the end of the upper end 103 of the antenna 102. During the abutting process, the inclined transmission plate 303 and the pressing plate 302 are pushed to move away from the end 103 under force, and the first spring 403 is deformed under force to generate elastic force. After the lifting plate 2 and the pressing plate 302 move upward, due to the elastic force of the first spring 403, the pressing plate 302 is pushed to keep abutting against the end 103 of the antenna 102. Through the abutting action, the anti-loosening effect of squeezing the connected antenna 102 is achieved, and through the abutting action between the pressing plate 302 and the end of the upper end 103 of the antenna 102, the probability of the antenna 102 deflecting under force is reduced; After the antenna 102 is installed and adjusted, the second hook 805 at the end of the sleeve 801 is hung and connected with the second hanging ring 807 at the upper end of the mounting seat 5. After the hanging connection, the pull rod 802 is pulled away from the sleeve 801, and the second spring 808 is deformed under force to generate elastic force. During the pulling process, the first hook 804 at one end of the pull rod 802 is hung and connected with the first hanging ring 806 at the lowermost part outside the end 103. After the hanging connection, through the elastic force of the second spring 808 and the connection of the second hook 805, the second hanging ring 807, the pull rod 802, the first hook 804 and the first hanging ring 806, the end 103 on the antenna 102 is pulled, further reducing the probability of the antenna 102 deflecting under force. When the external force received by the antenna 102 is too large and causes the antenna 102 to deflect (see Figure 11 and Figure 12 for the state), through the deflection rotation of the end 103 and the connection between the first hook 804 and the first hanging ring 806, the pull rod 802 is forced to slide further outward on the sleeve 801. During the sliding process of the pull rod 802, the induction plate 803 is pulled to move further away from the distance sensor 9 inside the sleeve 801. At this time, the distance sensor 9 identifies that the sliding distance of the induction plate 803 is abnormal and transmits it to the controller. The controller energizes the electromagnet 1102. After being energized, the electromagnet 1102 generates a magnetic force with the iron block 1103, and the push plate 1003 is forced to rotate around the mounting shaft 1002. During the rotation process, through the abutting action between the fixed pin 1004 and one side of the strip plate 402, the strip plate 402 is pushed to move away from the L-shaped plate 301 (see Figure 9(transmission process diagram), during the movement of the strip plate 402, through the connection of each group of mounting rods 401, the pressing plate 302 is pulled to move away from the end of the end 103 under force. Through the movement of the pressing plate 302, the pressing force on the end 103 is reduced. At this time, through the elastic force of the second spring 808, the deflected antenna 102 and the end 103 are pulled to rotate back to their original positions, ensuring that the antenna 102 always maintains the state after installation and adjustment during anti-interference use, and ensuring the anti-interference effect of the antenna 102 on the specified area.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-interference communication device for underground coal mines, comprising: A same-frequency repeater (101) for anti-interference communication in coal mines, wherein the same-frequency repeater (101) is provided with an antenna (102), an end of the antenna (102) is provided with a terminal (103), and the same-frequency repeater (101) is provided with a socket for plugging and connecting the terminal (103); It is characterized by further comprising: A lifting plate (2) is arranged on the outside of the same-frequency repeater (101), the lifting plate (2) is located below the end (103) of the installed antenna (102), a mounting seat (5) is detachably mounted on the outside of the same-frequency repeater (101) by means of bolts, the lifting plate (2) is located above the mounting seat (5), a lifting component for lifting the lifting plate (2) and a guiding component for guiding during the lifting process are arranged on the mounting seat (5), an anti-slipping squeezing component for preventing the end head (103) from slipping off after being inserted and installed is arranged on the lifting plate (2), and a pulling component for preventing the end head (103) from being offset and rotating after being inserted and installed is arranged on the mounting seat (5).

2. The anti-interference communication device for underground coal mine according to claim 1, characterized in that: The pulling assembly comprises a sleeve (801) arranged between the mounting seat (5) and the end head (103), a pull rod (802) being slidably connected to the sleeve (801), one end of the pull rod (802) being located inside the sleeve (801) and being fixed with a sensing plate (803), the other end of the pull rod (802) being located outside the sleeve (801) and being fixed with a first hook (804), one end of the sleeve (801) being fixed with a second hook (805), and a plurality of first hanging rings (806) being fixed on the outside of the end head (103), and Each group of first hanging rings (806) is arranged in a circular array on the outer side of the end (103); the first hanging hook (804) is connected to the first hanging ring (806) at the bottom of the end (103); a second hanging ring (807) is installed on the upper end of the mounting seat (5); the second hanging hook (805) is connected to the second hanging ring (807); a second spring (808) is sleeved on the outer side of the pull rod (802); and the two ends of the second spring (808) are respectively connected to the induction plate (803) and the inner wall of the sleeve (801).

3. The anti-interference communication device for underground coal mine according to claim 2, characterized in that: A distance sensor (9) for identifying the sliding movement of the sensing plate (803) is installed inside the sleeve (801), and the distance sensor (9) is located below the sensing plate (803).

4. The anti-interference communication device for underground coal mine according to claim 3, characterized in that: Two groups of the anti-slipping extrusion components are symmetrically arranged on the lifting plate (2), and the anti-slipping extrusion components include an L-shaped plate (301) fixed to one side of the lifting plate (2), one side of the L-shaped plate (301) is connected to an extrusion plate (302) via an elastic component, the extrusion plate (302) is located above the lifting plate (2), an oblique transmission plate (303) for abutting against an end of the end head (103) is fixed to the upper end of the extrusion plate (302), and an adjustment component for adjusting the extrusion force on the end head (103) after sliding recognition of the induction plate (803) is arranged on the lifting plate (2).

5. The anti-interference communication device for underground coal mine according to claim 4, characterized in that: The elastic force component comprises a plurality of groups of mounting rods (401) slidably connected to the L-shaped plate (301), one end of each group of the mounting rods (401) being fixed to the extrusion plate (302), a strip plate (402) being provided on one side of the L-shaped plate (301), one end of each group of the mounting rods (401) being fixed to the strip plate (402), and a first spring (403) being sleeved on the outer side of each group of the mounting rods (401), two ends of the first spring (403) being respectively connected to the extrusion plate (302) and the L-shaped plate (301).

6. The anti-interference communication device for underground coal mine according to claim 5, characterized in that: The adjustment assembly comprises a support frame (1001) fixed to one side of the lifting plate (2); a push plate (1003) is rotatably connected to the support frame (1001) via a mounting shaft (1002); a fixing pin (1004) for abutting against the inner side of the strip plate (402) for transmission is fixed to the upper end of the push plate (1003); and a driving assembly for driving the push plate (1003) is provided on the lifting plate (2).

7. The anti-interference communication device for underground coal mine according to claim 6, characterized in that: The driving assembly comprises an L-shaped frame (1101) fixed to the lower end of the lifting plate (2), and an electromagnet (1102) and an iron block (1103) are respectively installed on one side of the L-shaped frame (1101) opposite to the push plate (1003).

8. The anti-interference communication device for underground coal mine according to claim 1, characterized in that: The lifting assembly comprises a threaded rod (601) rotatably connected to the upper end of a mounting seat (5); a threaded tube (602) is threadedly engaged with the threaded rod (601); one end of the threaded tube (602) is fixed to the lower end of the lifting plate (2); and a driving motor (603) for driving the threaded rod (601) is mounted at the lower end of the mounting seat (5).

9. The anti-interference communication device for underground coal mine according to claim 8, characterized in that: The guide assembly comprises a sleeve (701) fixed to the lower end of the lifting plate (2), a sliding rod (702) being slidably connected to the sleeve (701), and one end of the sliding rod (702) is fixed to the mounting seat (5).

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