Movable underground tunneling supporting device

Abstract

The utility model discloses a movable underground tunneling supporting device, which belongs to the technical field of coal mine tunneling supporting devices and comprises supporting vertical plates oppositely arranged on two sides, the upper ends of the supporting vertical plates on the two sides are detachably connected with supporting semi-arc plates, and the bottoms of the supporting vertical plates on the two sides are detachably connected with universal wheels. Fixing assemblies are installed at the bottoms of the supporting vertical plates on the two sides, the supporting device is fixed to the original position through the fixing assemblies, inner concave faces are arranged on the outer walls of the supporting semi-arc plates on the two sides, semi-arc air cushions are detachably connected to the interiors of the inner concave faces on the two sides, air exists in the arranged semi-arc air cushions, the surfaces of the semi-arc air cushions are stressed and deformed when broken stones fall down, and therefore the broken stones are prevented from falling off. Large resilience force cannot be generated, impact force of broken stones can be buffered and then fall down towards the two sides, and therefore the situation that workers are injured due to the fact that the broken stones bounce up can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine excavation support devices, and specifically relates to a mobile underground excavation support device. Background Art

[0002] Tunneling is the work of excavating various shapes, sections or crisscrossing wells, tunnels and caves in rock or mineral strata. The tunneling process is divided into main process and auxiliary process. The main process is the process that is completed directly on the working face to ensure the progress of the working face, as well as the support work carried out in the tunnel excavation area. The main process is determined by the nature of the rock that the tunnel passes through. When tunneling hard rock, the main processes are drilling, charging, blasting, ventilation and safety inspection of the working face, rock loading, and tunnel support. When tunneling in coal mines, support devices are needed to protect personnel.

[0003] At present, the prior art, Chinese utility model patent CN219119277U discloses a coal mine excavation support device. When gravel falls, the gravel first contacts the contact plate. After the contact plate contacts the gravel, the contact plate pushes the round rod and the limit plate to move downward and squeezes the spring. Under the elastic action of the spring, the impact of the contact plate will be buffered, thereby reducing the impact of the gravel on the protective top plate, avoiding damage and deformation of the protective top plate, and improving the service life. The gravel slides from the left and right ends of the device and contacts the wire mesh on the left and right protective devices. On the one hand, it can avoid affecting the staff's line of sight, and on the other hand, it can avoid the danger of gravel contacting with personnel. When the left and right protective devices are damaged, the connecting screw is rotated to disengage the frame from the left mounting frame, so that the left and right protective devices can be removed and replaced. The entire excavation support device has high installation efficiency, good supporting effect, high stability, and is suitable for use in coal mine excavation.

[0004] Although the above-mentioned prior art can cushion the falling of gravel, when gravel falls, the spring will be retracted after being stressed, so that the gravel will bounce up, increasing the possibility of injury to workers. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problem raised in the above background technology that when gravel falls, the spring will be retracted after being stressed, thereby bouncing the gravel up, increasing the possibility of injury to workers, the utility model adopts the following technical solution.

[0007] A mobile underground tunneling support device comprises support vertical plates arranged opposite to each other on two sides, the upper ends of the support vertical plates on both sides are detachably connected with support semi-arc plates, the bottoms of the support vertical plates on both sides are detachably connected with universal wheels, fixing components are installed at the bottoms of the support vertical plates on both sides, the fixing components fix the support device in place, the outer walls of the support semi-arc plates on both sides are provided with inner concave surfaces, the interiors of the inner concave surfaces on both sides are detachably connected with semi-arc air cushions, when gravel falls, the surface of the semi-arc air cushion is deformed by force, and no large rebound force is generated.

[0008] Preferably, the semi-arc air cushion is connected with a connecting air pipe that passes through the supporting semi-arc plate, and the end of the connecting air pipe is detachably connected with an inflatable airbag, and the inflatable airbag is provided with an inflation port. When gravel falls on the surface of the semi-arc air cushion, the gas inside the semi-arc air cushion enters the inflatable airbag through the connecting air pipe to expand the inflatable airbag. After the gravel falls off the semi-arc air cushion, the inflatable airbag shrinks to flush the air back into the interior of the semi-arc air cushion.

[0009] Preferably, an alarm component is installed on the connecting air pipes on both sides, and the alarm component emits an audible and visual alarm when the gas inside the semi-arc air cushion enters the wind speed sensor.

[0010] Preferably, the opposite surfaces of the supporting semi-arc plates on both sides are detachably connected with storage vertical plates, the upper ends of the storage vertical plates on both sides are telescopically connected with the telescopic vertical plates, a plurality of damping telescopic rods are installed between the telescopic vertical plates on both sides and the storage vertical plates on both sides, the upper ends of the telescopic vertical plates on both sides are fixedly connected with the semi-arc top plates, and gravel falls on the surface of the semi-arc top plates, the telescopic vertical plates on both sides move toward the inside of the storage vertical plates and compress the damping telescopic rods, and the damping telescopic rods slowly reset.

[0011] Preferably, the two sides of the semi-arc top plate are fixedly connected with extrusion vertical plates extending downward, and the extrusion vertical plates on both sides are located above the semi-arc air cushion. When the telescopic vertical plates move toward the inside of the storage vertical plates, the extrusion vertical plates on both sides squeeze the semi-arc air cushion to trigger the alarm component.

[0012] Preferably, the alarm component includes a wind speed sensor and an audible and visual alarm. The wind speed sensor is installed on the connecting air pipe. Mounting bosses are fixedly connected to the opposite surfaces of the supporting vertical plates on both sides near the upper ends. The audible and visual alarm is installed on the upper ends of the mounting bosses. When the gas inside the semi-arc air cushion enters the inflatable airbag through the connecting air pipe, the wind speed sensor detects the gas flow and sends a signal, and causes the audible and visual alarm to emit an alarm sound and an alarm light.

[0013] Preferably, the fixing assembly includes a protruding plate and a limiting ground nail, and the outer walls of the two side supporting vertical plates are fixedly connected with the protruding plates extending outward, and the limiting ground nails are inserted into the protruding plates on both sides, and the limiting ground nails are inserted into the ground to fix the support device.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. There is air inside the semi-arc air cushion. When the gravel falls, the surface of the semi-arc air cushion is deformed by force, and no large rebound force is generated. The impact force of the gravel can be buffered and then fall to both sides, thereby preventing the gravel from bouncing up and causing injuries to the workers.

[0016] 2. When gravel falls on the surface of the semi-arc air cushion through the inflatable airbag, the gas inside the semi-arc air cushion enters the inflatable airbag through the connecting air tube to expand the inflatable airbag. After the gravel falls, the air is rushed back into the semi-arc air cushion by the retraction force of the inflatable airbag, thereby ensuring that the interior of the semi-arc air cushion always maintains a suitable air pressure, and can always maintain a good cushioning effect. When the air pressure inside the semi-arc air cushion and the inflatable airbag is too low, it can be inflated through the inflation port.

[0017] 3. Through the wind speed sensor in the alarm component, when gravel falls on the surface of the semi-arc air cushion and the gas inside the semi-arc air cushion enters the inflatable airbag through the connecting air pipe, the wind speed sensor detects the gas flow and sends a signal, and makes the sound and light alarm emit an alarm sound and an alarm light, so that the staff can find the location of the fallen gravel in time, judge whether there is any danger according to the size of the fallen gravel and the on-site conditions, and enable the staff to evacuate in time when there is a safety hazard.

[0018] 4. The semi-arc top plate is set up, when the gravel falls between the supporting semi-arc plates on both sides, it is blocked by the semi-arc top plate. The gravel falls on the surface of the semi-arc top plate, and the telescopic vertical plates on both sides move toward the inside of the storage vertical plates and compress the damping telescopic rod. The slow extension of the damping telescopic rod can prevent the gravel from bouncing up, and the gravel falls to the surface of the semi-arc air cushion through the outer wall of the semi-arc top plate, which can trigger the alarm component to alarm, so that the staff can find the location of the gravel more quickly.

[0019] 5. By setting up the squeezing vertical plates, when the gravel falls on the surface of the semi-arc top plate and causes the telescopic vertical plates to move toward the inside of the storage vertical plates, the squeezing vertical plates on both sides squeeze the semi-arc air cushion to trigger the alarm component, thereby avoiding the situation where the alarm component cannot be triggered when the gravel does not fall on the semi-arc air cushion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a mobile underground tunneling support device in the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the protruding plate inserted into the limiting ground nail in the utility model;

[0022] Figure 3 This is a schematic diagram of the semi-arc air cushion structure of the utility model;

[0023] Figure 4This is a schematic diagram of the semi-arc top plate structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the extruded vertical plate in the utility model.

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0026] 100, supporting vertical plate; 101, supporting semi-arc plate; 102, universal wheel; 103, protruding plate; 104, limiting ground nails; 105, inner concave surface; 106, mounting boss;

[0027] 200, semi-arc air cushion; 201, connecting air pipe; 203, wind speed sensor; 204, inflatable air bag; 205, sound and light alarm;

[0028] 300, semi-arc top plate; 301, storage vertical plate; 302, telescopic vertical plate; 303, extruded vertical plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0032] like Figure 1 As shown, it is a schematic diagram of the structure of a mobile underground excavation support device according to a preferred embodiment of the utility model. The mobile underground excavation support device of this embodiment includes support vertical plates 100 arranged opposite to each other on two sides, and the upper ends of the support vertical plates 100 on both sides are detachably connected with support semi-arc plates 101, and the bottoms of the support vertical plates 100 on both sides are detachably connected with universal wheels 102. In this embodiment, the support equipment can be moved freely through the universal wheels 102, and the support semi-arc plates 101 on both sides can be used to block the gravel falling from the top, and the support vertical plates 100 on both sides can be used to block the gravel impacting from the side.

[0033] like Figure 2 As shown, it is a schematic diagram of the structure of the protruding plate inserted into the limiting ground nail in this embodiment, the outer walls of both sides of the supporting vertical plates 100 are fixedly connected with protruding plates 103 extending outward, and limiting ground nails 104 are inserted into the protruding plates 103 on both sides. In this embodiment, after the support device is moved to a suitable position, the limiting ground nails 104 are inserted from above the protruding plates 103, and the limiting ground nails 104 are hammered with a tool to make them inserted into the ground, so that the support device can be fixed.

[0034] It is worth noting that the above-mentioned protruding plate 103 and limiting ground nails 104 are fixing components in this embodiment, and the fixing components include but are not limited to the protruding plate 103 and limiting ground nails 104. As long as it is a component that can fix the supporting device in place, it can be applied to this embodiment.

[0035] like Figure 2 as well as Figure 3 As shown, it is a schematic diagram of the structure of the extended plate inserted into the limiting ground nail and the schematic diagram of the semi-arc air cushion structure in this embodiment. The outer walls of the semi-arc plates 101 supporting both sides are provided with inner concave surfaces 105, and the interiors of the inner concave surfaces 105 on both sides are detachably connected with semi-arc air cushions 200. In this embodiment, there is air inside the semi-arc air cushion 200. When the gravel falls, the surface of the semi-arc air cushion 200 is deformed by force, and no large rebound force is generated. The impact force of the gravel can be buffered and then fall to both sides, thereby preventing the gravel from bouncing up and causing injuries to the staff.

[0036] like Figure 3 As shown, in order to make the buffering force of the semi-arc air cushion 200 better, in this embodiment, the semi-arc air cushion 200 is connected with a connecting air pipe 201 that passes through the supporting semi-arc plate 101, and the end of the connecting air pipe 201 is detachably connected with an inflatable airbag 204, and the inflatable airbag 204 is provided with an inflation port. In this embodiment, when gravel falls on the surface of the semi-arc air cushion 200, the gas inside the semi-arc air cushion 200 enters the inflatable airbag 204 through the connecting air pipe 201 to expand the inflatable airbag 204. After the gravel falls, the air is rushed back into the interior of the semi-arc air cushion 200 by the retraction force of the inflatable airbag 204, thereby ensuring that the interior of the semi-arc air cushion 200 always maintains a suitable air pressure, and can always maintain a good buffering effect. When the air pressure inside the semi-arc air cushion 200 and the inflatable airbag 204 is too low, it can be inflated through the inflation port.

[0037] like Figure 2 as well as Figure 3As shown, in order to enable the staff to find the location where the gravel falls in time, in this embodiment, a wind speed sensor 203 is installed on the connecting air pipe 201, and the opposite surfaces of the supporting vertical plates 100 on both sides near the upper end are fixedly connected with mounting bosses 106, and the upper ends of the mounting bosses 106 are installed with sound and light alarms 205. In this embodiment, when the gravel falls on the surface of the semi-arc air cushion 200 and the gas inside the semi-arc air cushion 200 enters the inflatable airbag 204 through the connecting air pipe 201, the wind speed sensor 203 detects the gas flow and sends a signal, and causes the sound and light alarm 205 to emit an alarm sound and an alarm light, so that the staff can find the location where the gravel falls in time, judge whether there is danger according to the size of the gravel and the on-site conditions, and enable the staff to evacuate in time when there is a safety hazard.

[0038] It is worth noting that the above-mentioned wind speed sensor 203 and inflatable airbag 204 are alarm components in this embodiment. The alarm components include but are not limited to wind speed sensor 203 and sound and light alarm 205. Any component that can alarm when gravel falls can be applied to this embodiment.

[0039] like Figure 4 As shown, it is a schematic diagram of the semi-arc top plate structure in this embodiment, the opposite surfaces of the semi-arc plates 101 supporting on both sides are detachably connected with the storage vertical plates 301, the upper ends of the storage vertical plates 301 on both sides are telescopically connected with the telescopic vertical plates 302, a plurality of damping telescopic rods are installed between the telescopic vertical plates 302 on both sides and the storage vertical plates 301 on both sides, and the upper ends of the telescopic vertical plates 302 on both sides are fixedly connected with the semi-arc top plate 300. In this embodiment, when gravel falls between the semi-arc plates 101 supporting on both sides, it is blocked by the semi-arc top plate 300, and the gravel falls on the surface of the semi-arc top plate 300. The telescopic vertical plates 302 on both sides move toward the inside of the storage vertical plates 301 and compress the damping telescopic rods. The slow extension of the damping telescopic rods can prevent the gravel from bouncing up, and the gravel falls to the surface of the semi-arc air cushion 200 through the outer wall of the semi-arc top plate 300, thereby triggering the alarm component to alarm, so that the staff can find the location of the gravel more quickly.

[0040] like Figure 5 As shown, it is a schematic diagram of the extruded vertical plate structure in this embodiment, and the two sides of the semi-arc top plate 300 are fixedly connected with extruded vertical plates 303 extending downward, and the extruded vertical plates 303 on both sides are located above the semi-arc air cushion 200. In this embodiment, when gravel falls on the surface of the semi-arc top plate 300 and causes the telescopic vertical plates 302 to move toward the inside of the storage vertical plates 301, the extruded vertical plates 303 on both sides squeeze the semi-arc air cushion 200 to trigger the alarm component, thereby avoiding the situation where the alarm component cannot be triggered when the gravel does not fall on the semi-arc air cushion 200.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A mobile underground tunneling support device, comprising support vertical plates (100) arranged opposite to each other on two sides, the upper ends of the support vertical plates (100) on both sides are detachably connected to support semi-arc plates (101), the bottoms of the support vertical plates (100) on both sides are detachably connected to universal wheels (102), and the bottoms of the support vertical plates (100) on both sides are installed with fixing components, and the fixing components fix the support device in place, characterized in that: The outer walls of the supporting semi-arc plates (101) on both sides are provided with inner concave surfaces (105), and the interiors of the inner concave surfaces (105) on both sides are detachably connected with semi-arc air cushions (200). When the gravel falls, the surface of the semi-arc air cushion (200) is deformed by force, and no large rebound force is generated.

2. The mobile underground tunneling support device according to claim 1, characterized in that: The semi-arc air cushion (200) is connected to a connecting air pipe (201) passing through the supporting semi-arc plate (101); the end of the connecting air pipe (201) is detachably connected to an inflatable air bag (204); an inflatable port is provided on the inflatable air bag (204); when gravel falls on the surface of the semi-arc air cushion (200), gas inside the semi-arc air cushion (200) enters the inflatable air bag (204) through the connecting air pipe (201), causing the inflatable air bag (204) to expand; after the gravel falls off the semi-arc air cushion (200), the inflatable air bag (204) retracts to flush air back into the semi-arc air cushion (200).

3. The mobile underground tunneling support device according to claim 2, characterized in that: Alarm components are installed on the connecting air pipes (201) on both sides, and the alarm components emit an audible and visual alarm when the gas inside the semi-arc air cushion (200) enters the wind speed sensor (203).

4. The mobile underground tunneling support device according to claim 3 is characterized in that: The opposite surfaces of the supporting semi-arc plates (101) on both sides are detachably connected with storage vertical plates (301), the upper ends of the storage vertical plates (301) on both sides are telescopically connected with telescopic vertical plates (302), a plurality of damping telescopic rods are installed between the telescopic vertical plates (302) on both sides and the storage vertical plates (301) on both sides, and the upper ends of the telescopic vertical plates (302) on both sides are fixedly connected with the semi-arc top plate (300), and when gravel falls on the surface of the semi-arc top plate (300), the telescopic vertical plates (302) on both sides move toward the inside of the storage vertical plates (301) and compress the damping telescopic rods, and the damping telescopic rods slowly reset.

5. The mobile underground tunneling support device according to claim 4, characterized in that: The semi-arc top plate (300) is fixedly connected to two sides thereof with extrusion vertical plates (303) extending downwards, and the extrusion vertical plates (303) on both sides are located above the semi-arc air cushion (200). When the telescopic vertical plates (302) move toward the inside of the storage vertical plates (301), the extrusion vertical plates (303) on both sides squeeze the semi-arc air cushion (200) to trigger the alarm component.

6. The mobile underground tunneling support device according to claim 5, characterized in that: The alarm assembly comprises a wind speed sensor (203) and an audible and visual alarm (205); the wind speed sensor (203) is mounted on the connecting air pipe (201); mounting bosses (106) are fixedly connected to opposite surfaces of the supporting vertical plates (100) at both sides close to the upper ends; the audible and visual alarm (205) is mounted on the upper ends of the mounting bosses (106); when gas inside the semi-arc air cushion (200) enters the inflatable air bag (204) through the connecting air pipe (201), the wind speed sensor (203) detects the flow of gas and sends out a signal, and causes the audible and visual alarm (205) to emit an alarm sound and an alarm light.

7. The mobile underground tunneling support device according to claim 6, characterized in that: The fixing assembly comprises a protruding plate (103) and a limiting ground nail (104); the outer walls of the two side supporting vertical plates (100) are fixedly connected with the protruding plates (103) extending outward; the limiting ground nails (104) are inserted into the protruding plates (103) on the two side; and the limiting ground nails (104) are inserted into the ground to fix the supporting device.

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