Coal mine tunnel supporting device

Abstract

The utility model relates to the technical field of coal mine tunnel protection, and discloses a coal mine tunnel supporting device which comprises a positioning seat, an alarm type supporting mechanism is arranged at the top of the positioning seat and comprises an auxiliary supporting piece, a threaded rod is in threaded connection with the inner wall of the auxiliary supporting piece, and the threaded rod is in threaded connection with the positioning seat. A lifting table is rotationally connected to the top of the threaded rod, a sliding rod is welded to the bottom of the lifting table, and the outer wall of the sliding rod is slidably connected with the inner wall of the auxiliary supporting piece. Through the design of the threaded rod, the top of the rubber block can be attached to the bottom of the arc-shaped top plate by rotating the threaded rod, if the arc-shaped top plate deforms, pressure is applied to the pressure sensor through the rubber block, and after the pressure value monitored by the pressure sensor is larger than a preset value, the audible and visual alarm is immediately controlled to work; and an acousto-optic alarm is given to prompt a user, so that the user is supervised to maintain the arc-shaped top plate in time, and the problem of causing larger accidents is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel protection, and specifically to a coal mine tunnel supporting device. Background Art

[0002] Mine tunnels are divided into three categories according to their service scope: development tunnels, mining tunnels, and recovery tunnels. Development tunnels are tunnels that serve the entire mine field or one or more first-level division units, recovery tunnels are tunnels that directly serve one or more recovery units, and the tunnels between these two types of tunnels are mining tunnels. This division also reflects the tunnel excavation sequence, which is consistent with the mining steps of the ore deposit. Support devices are required in the tunnels to support them.

[0003] A Chinese patent discloses a coal mine tunnel support device with publication number CN215520935U. The technical solution disclosed in the patent document is as follows: it includes an arc-shaped top plate, and the left and right sides of the bottom of the arc-shaped top plate are fixedly connected with support side plates, and a bottom plate is arranged below the two support side plates. The left and right sides of the top of the bottom plate are fixedly connected with two jacks, and the tops of the four jacks are fixedly connected with connecting blocks, and the four connecting blocks are respectively fixedly connected to the opposite sides of the two support side plates.

[0004] In order to solve the problem that the roller is easily damaged when under pressure for a long time, the existing technology adopts the method of designing a threaded adjustment rod and a guide rod to deal with it. However, there is still a situation where the deformation alarm cannot be issued. During the use of the curved top plate, it may be deformed due to excessive pressure. Workers cannot know and take corresponding active measures in time, which can easily lead to accidents. Utility Model Content

[0005] The utility model aims to provide a coal mine tunnel supporting device to solve the problem that the state of the arc-shaped roof cannot be monitored and an alarm can be given in the prior art.

[0006] The utility model provides the following technical solutions: a coal mine tunnel support device, comprising a positioning seat, the top of the positioning seat is provided with an alarm-type support mechanism, the alarm-type support mechanism comprises an auxiliary support member, a threaded rod is threadedly connected to the inner wall of the auxiliary support member, the top of the threaded rod is rotatably connected to a lifting platform, a sliding rod is welded to the bottom of the lifting platform, the outer wall of the sliding rod is slidably connected to the inner wall of the auxiliary support member, a pressure sensor is fixedly installed on the top of the lifting platform, a rubber block is fixedly connected to the top of the pressure sensor, an audible and visual alarm is fixedly installed on the back of the auxiliary support member, the pressure sensor and the audible and visual alarm are connected through an external controller electrical signal, the pressure sensor can monitor the deformation of the arc top plate through the pressure signal, and control the audible and visual alarm to work and give a prompt.

[0007] As a preferred embodiment of the above technical solution, the alarm-type support mechanism also includes vertical rods and an arc-shaped top plate. A strip groove is opened on the side of the arc-shaped top plate. A plug-in strip is movably inserted on the inner wall of the strip groove. The end of the plug-in strip is fixedly connected to a limited position frame. The plug-in strip can assist the vertical rods in supporting the arc-shaped top plate.

[0008] As a preferred embodiment of the above technical solution, a connecting block is detachably connected to the inner wall of the limit frame, and the connecting block is welded to the side of the auxiliary support member. The connection relationship design between the connecting block and the limit frame member facilitates the user to install the auxiliary support member.

[0009] As a preferred embodiment of the above technical solution, a plug connector is fixedly connected to one end of the plug-in strip away from the limiting frame, triangular grooves are provided on the top and bottom of the plug-in strip, and a circular through groove is provided on the front of the plug-in strip. The design of the triangular groove improves the stability of the plug-in strip when plugged into the ground.

[0010] As a preferred embodiment of the above technical solution, a connecting hole is opened on the front side of the curved top plate, and a connecting rod is fixedly connected to the back side of the curved top plate. The outer wall of the connecting rod fits with the inner cavity of the connecting hole. Through the design of the connecting rod and the connecting hole, it is convenient for users to splice the curved top plate.

[0011] As a preferred embodiment of the above technical solution, a vertical rod is welded to the top of the vertical rod, an extension support arm is detachably connected to the inner wall of the vertical rod, and a height-fixing bolt is threadedly connected to the outer wall of the vertical rod, and the height-fixing bolt can position the height of the extension support arm in the vertical rod.

[0012] As a preferred embodiment of the above technical solution, the threaded end of the height fixing bolt is movably connected to the outer wall of the extended support arm, the top of the extended support arm is fixedly connected with a fitting block, the top of the fitting block is fixedly connected to the bottom of the arc-shaped top plate, and the fitting block can ensure a firm connection between the extended support arm and the arc-shaped top plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model adopts the design of the threaded rod, which can be rotated to make the top of the rubber block fit with the bottom of the arc-shaped top plate. If the arc-shaped top plate is deformed, the rubber block will apply pressure to the pressure sensor. When the pressure value monitored by the pressure sensor is greater than the preset value, the sound and light alarm will be controlled to work, and the sound and light alarm will be issued to prompt the user, urging the user to maintain the arc-shaped top plate in time to avoid problems that may cause greater accidents, thereby improving the reliability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the separation structure of the arc-shaped top plate and the plug-in strip plate of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of structure A in FIG.

[0018] Figure 4 This is a schematic diagram of the structure of the auxiliary support member of the utility model;

[0019] Figure 5 for Figure 4 A magnified view of structure B in FIG.

[0020] Figure 6 It is a structural schematic diagram of the vertical rod of the utility model.

[0021] In the figure: 1. positioning seat; 2. alarm-type supporting mechanism; 21. vertical rod; 211. extension support arm; 212. fitting block; 22. arc-shaped top plate; 221. connecting hole; 222. connecting plug rod; 23. strip groove; 231. plug-in strip plate; 232. limit frame; 233. plug-in connector; 234. triangular groove; 235. circular through groove; 24. connecting block; 241. auxiliary support member; 242. threaded rod; 243. sliding rod; 244. lifting platform; 245. pressure sensor; 246. rubber block; 247. sound and light alarm. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a coal mine tunnel support device, including a positioning seat 1, an alarm-type support mechanism 2 is arranged on the top of the positioning seat 1, the alarm-type support mechanism 2 includes an auxiliary support member 241, a threaded rod 242 is threadedly connected to the inner wall of the auxiliary support member 241, a lifting platform 244 is rotatably connected to the top of the threaded rod 242, a sliding rod 243 is welded to the bottom of the lifting platform 244, the outer wall of the sliding rod 243 is slidably connected to the inner wall of the auxiliary support member 241, a pressure sensor 245 is fixedly installed on the top of the lifting platform 244, a rubber block 246 is fixedly connected to the top of the pressure sensor 245, an audible and visual alarm 247 is fixedly installed on the back of the auxiliary support member 241, and the pressure sensor 245 and the audible and visual alarm 247 are fixedly installed on the back of the auxiliary support member 241. 47 is connected through an external controller electrical signal. After the auxiliary support 241 is installed, the threaded rod 242 is rotated so that the top of the rubber block 246 fits with the bottom of the arc-shaped top plate 22. The pressure sensor 245 is an existing structure and its model can be set to MPX2010. If the arc-shaped top plate 22 is deformed, the rubber block 246 will apply pressure to the pressure sensor 245. When the pressure value monitored by the pressure sensor 245 is greater than the preset value, the sound and light alarm 247 is controlled by the external controller to work, and an sound and light alarm is issued to prompt the user, urging the user to maintain the arc-shaped top plate 22 in time to increase safety. The auxiliary support 241 can perform auxiliary support processing on the arc-shaped top plate 22 after the arc-shaped top plate 22 is deformed.

[0024] As an implementation method in this embodiment, Figure 1-Figure 5 As shown, the alarm support mechanism 2 also includes a vertical rod 21 and an arc-shaped top plate 22. A strip groove 23 is provided on the side of the arc-shaped top plate 22. A plug-in strip 231 is movably plugged into the inner wall of the strip groove 23. The end of the plug-in strip 231 is fixedly connected to a limit frame 232. A connecting block 24 is detachably connected to the inner wall of the limit frame 232. The connecting block 24 is welded to the side of the auxiliary support member 241. A plug connector 233 is fixedly connected to the end of the plug-in strip 231 away from the limit frame 232. Triangular grooves 234 are provided on the top and bottom of the plug-in strip 231. The front of the plug-in strip 231 is provided with a After the circular through groove 235 is supported by the arc-shaped top plate 22, the plug-in strip 231 is passed through the strip groove 23 and plugged into the ground. Through the overall design of the plug-in strip 231, the auxiliary vertical rod 21 supports the arc-shaped top plate 22, thereby improving the stability of the structure. Through the design of the plug joint 233, it is convenient to plug the plug-in strip 231 into the ground. Through the design of the triangular groove 234, the stability of the plug-in strip 231 plugged into the ground can be improved. The connecting block 24 is plugged into the limit frame 232, and then the bolts on the top of the limit frame 232 are tightened to complete the fixing of the auxiliary support member 241.

[0025] As an implementation method in this embodiment, Figure 2 , Figure 6 As shown, a connecting hole 221 is opened on the front of the arc-shaped top plate 22, and a connecting rod 222 is fixedly connected to the back of the arc-shaped top plate 22. The outer wall of the connecting rod 222 fits with the inner cavity of the connecting hole 221. The vertical rod 21 is welded to the top of the vertical rod 21, and an extension support arm 211 is detachably connected to the inner wall of the vertical rod 21. A height-fixing bolt is threadedly connected to the outer wall of the vertical rod 21, and the threaded end of the height-fixing bolt is movably connected to the outer wall of the extension support arm 211. The extension support arm 211 is detachably connected to the inner wall of the vertical rod 21. The top of 211 is fixedly connected with a fitting block 212, and the top of the fitting block 212 is fixedly connected to the bottom of the arc-shaped top plate 22. Through the design of the connecting hole 221 and the connecting rod 222, the connecting rod 222 is inserted into the inside of the connecting hole 221 to complete the splicing of the arc-shaped top plate 22. After loosening the height fixing bolt, the extended support arm 211 can be slid on the inner wall of the vertical rod 21 to adjust the distance between the positioning seat 1 and the arc-shaped top plate 22, so as to facilitate the implementation of the support work.

[0026] Working principle: When in use, the structure is positioned and installed from the positioning seat 1, the height fixing bolt is loosened, the extended support arm 211 is slid on the inner wall of the vertical rod 21, the height of the arc-shaped top plate 22 is adjusted and the height bolt is tightened, and then the plug-in strip 231 is passed through the strip groove 23 and plugged into the ground to realize the support function, the connecting block 24 is plugged into the limit frame 232, and then the bolts on the top of the limit frame 232 are tightened to complete the fixation of the auxiliary support 241, and the threaded rod 242 is manually rotated so that the top of the rubber block 246 fits with the bottom of the arc-shaped top plate 22. If the arc-shaped top plate 22 is deformed, the pressure sensor 245 will monitor abnormal pressure data and then control the sound and light alarm 247 to operate and issue a sound and light alarm.

[0027] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A coal mine tunnel support device, comprising a positioning seat (1), characterized in that: An alarm-type support mechanism (2) is arranged on the top of the positioning seat (1), and the alarm-type support mechanism (2) comprises an auxiliary support member (241), a threaded rod (242) is threadedly connected to the inner wall of the auxiliary support member (241), the top of the threaded rod (242) is rotatably connected to a lifting platform (244), a sliding rod (243) is welded to the bottom of the lifting platform (244), the outer wall of the sliding rod (243) is slidably connected to the inner wall of the auxiliary support member (241), a pressure sensor (245) is fixedly installed on the top of the lifting platform (244), a rubber block (246) is fixedly connected to the top of the pressure sensor (245), and an audible and visual alarm (247) is fixedly installed on the back of the auxiliary support member (241), and the pressure sensor (245) and the audible and visual alarm (247) are connected via an external controller electrical signal.

2. A coal mine tunnel support device according to claim 1, characterized in that: The alarm-type support mechanism (2) further comprises a vertical rod (21) and an arc-shaped top plate (22); a strip groove (23) is provided on the side of the arc-shaped top plate (22); a plug-in strip plate (231) is movably plugged into the inner wall of the strip groove (23); and the end of the plug-in strip plate (231) is fixedly connected to a limit position frame (232).

3. A coal mine tunnel support device according to claim 2, characterized in that: A connection block (24) is detachably connected to the inner wall of the limiting frame member (232), and the connection block (24) is welded to the side surface of the auxiliary support member (241).

4. A coal mine tunnel support device according to claim 2, characterized in that: One end of the plug-in strip (231) away from the limiting frame (232) is fixedly connected to a plug connector (233), the top and bottom of the plug-in strip (231) are both provided with triangular grooves (234), and the front of the plug-in strip (231) is provided with a circular through groove (235).

5. A coal mine tunnel support device according to claim 2, characterized in that: A connecting hole (221) is provided on the front side of the arc-shaped top plate (22), and a connecting rod (222) is fixedly connected to the back side of the arc-shaped top plate (22), wherein the outer wall of the connecting rod (222) fits into the inner cavity of the connecting hole (221).

6. A coal mine tunnel support device according to claim 2, characterized in that: A vertical rod (21) is welded to the top of the vertical rod (21), an extension support arm (211) is detachably connected to the inner wall of the vertical rod (21), and a height-fixing bolt is threadedly connected to the outer wall of the vertical rod (21).

7. A coal mine tunnel support device according to claim 6, characterized in that: The threaded end of the height-fixing bolt is movably connected to the outer wall of the extended support arm (211), the top of the extended support arm (211) is fixedly connected to a fitting block (212), and the top of the fitting block (212) is fixedly connected to the bottom of the arc-shaped top plate (22).

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