Protective support for coal mining

Abstract

The utility model belongs to the technical field of protective supports, and particularly relates to a protective support for coal mining. The protective support for coal mining comprises a movable table, movable wheels are arranged at the four corners of the bottom of the movable table, telescopic feet are arranged on one sides of the movable wheels, and one ends, located above the movable table, of the telescopic feet are connected with first telescopic cylinders. A plurality of second telescopic cylinders are vertically arranged at the position, located between the first telescopic cylinders, above the movable table, the tops of the second telescopic cylinders are connected with a supporting plate, and the two ends of the supporting plate are provided with expansion plates which are folded upwards; a liquid storage tank and a storage battery are arranged in the middle of the movable table, one side of the liquid storage tank is connected with a dust suppression spray head through a water suction pump, the two sides of the dust suppression spray head are connected with illuminating lamps through connecting rods, and a magnet is arranged at the top of the dust suppression spray head.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective supports, and particularly relates to a protective support for coal mine excavation. Background Technique

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas, generally divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, it is generally chosen to dig underground roadways to mine coal, which is an underground coal mine. Most coal mines in China are underground coal mines. When coal mining is carried out, usually the drill and blast method, the fully mechanized tunneling method, etc. are adopted. The drill and blast method is to break rocks and coal seams through processes such as drilling, charging, and blasting, and then carry out mucking and support. The fully mechanized tunneling method is to use equipment such as roadheaders for continuous tunneling, with relatively high efficiency. In order to protect the safety of workers, it is generally necessary to support the roadway with a protective support.

[0003] Most of the existing protective supports are of fixed structures and need to be erected on site during use, which takes a lot of time. If the roadway collapses during this process, the workers are in great danger; in addition, during the erection of the protective support, since there will be a large amount of coal dust, etc. in the roadway, these coal dusts not only pose certain risks to the power supply circuits, but also the workers inhaling these coal dusts will affect their bodies. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that most of the existing protective supports are of fixed structures and need to be erected on site during use, which takes a lot of time, and there will be a large amount of coal dust, etc. in the roadway, which is not conducive to the progress of work.

[0005] To solve the above technical problem, the technical solution provided by the utility model is a protective support for coal mine excavation, including a mobile platform. At the four corners of the bottom of the mobile platform, there are mobile wheels, and a telescopic foot is arranged on one side of the mobile wheel. One end of the telescopic foot is connected to a first telescopic cylinder above the mobile platform. Vertically arranged between the first telescopic cylinders above the mobile platform are a plurality of second telescopic cylinders. The top of the second telescopic cylinder is connected to a support plate, and upwardly folded expansion plates are arranged at both ends of the support plate; in the middle of the mobile platform, there are a liquid storage tank and a storage battery. One side of the liquid storage tank is connected to a dust suppression nozzle through a water pump. On both sides of the dust suppression nozzle, there are connecting rods connecting lighting lamps, and a magnet is arranged on the top of the dust suppression nozzle.

[0006] Further, a strengthening platform is arranged at the position of the mobile wheels and the telescopic feet of the mobile platform.

[0007] Further, the bottom of the telescopic foot is fixedly connected to a fixed gear disk, and a plurality of protruding positioning teeth are arranged at the bottom of the fixed gear disk.

[0008] Furthermore, both sides above the support plate are rotatably connected to the extension plate through a plurality of hinges, and the upper end surfaces of the plurality of hinges are located below the upper end surface of the support plate.

[0009] Furthermore, both the first telescopic cylinder and the second telescopic cylinder are hydraulic cylinders, and a corresponding hydraulic pump is arranged on the moving platform.

[0010] Furthermore, the length of the extension plate is less than or equal to 1 / 2 of the length of the support plate.

[0011] Furthermore, the water pump is connected to the dust suppression nozzle and the liquid storage tank through a flexible telescopic pipe.

[0012] Furthermore, a fixing frame is arranged in the middle of the dust suppression nozzle. The fixing frame is rotatably connected to the dust suppression nozzle through interference fit, and the magnet is located at the top of the fixing frame.

[0013] Furthermore, the storage battery is electrically connected to the water pump and the lighting lamp.

[0014] The advantages of the present utility model compared with the prior art are as follows:

[0015] 1. Moving wheels are arranged at the four corners of the bottom of the protection bracket, which can easily move the bracket to different positions at the coal mine excavation site, meet the protection requirements of different operation areas, greatly improve the flexibility and operability of the equipment, and a plurality of second telescopic cylinders are vertically arranged on the moving platform, which can flexibly adjust the height of the top support plate according to the actual needs of the excavation operation, adapt to excavation spaces of different heights, and provide effective protection for operators and equipment;

[0016] 2. The support plate at both ends of the protection bracket of the present utility model is provided with extension plates that can be turned up. When needed, the extension plates can be unfolded to increase the support area, improve the coverage range of protection, better adapt to different excavation working conditions. A liquid storage tank and a water pump are arranged in the middle of the moving platform. The water pump transports the liquid in the liquid storage tank to the dust suppression nozzle, which can spray dust suppression liquid during the excavation process, effectively reduce the dust content in the air, improve the working environment, and reduce the harm of dust to the health of operators and the damage to equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the structure of a protection bracket for coal mine excavation of the present utility model Figure 1 。

[0018] Figure 2 is the structure of a protection bracket for coal mine excavation of the present utility model Figure 2 。

[0019] Figure 3 is an enlarged view of the structure at position B of a protection bracket for coal mine excavation of the present utility model.

[0020] Figure 4 This is an enlarged view of the structure at location A of a protective support for coal mining and excavation of the present utility model.

[0021] As shown in the figure:

[0022] 1. Mobile platform; 2. Mobile wheel; 3. Telescopic foot; 4. First telescopic cylinder; 5. Second telescopic cylinder; 6. Support plate; 7. Expansion plate; 8. Liquid storage tank; 9. Storage battery; 10. Water pump; 11. Dust suppression nozzle; 12. Connecting rod; 13. Lighting lamp; 14. Magnet; 15. Reinforcement platform; 16. Fixed gear disc; 17. Positioning tooth; 18. Hinge; 19. Fixed frame; 20. Flexible telescopic pipe. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment 1:

[0026] As shown in the specification appendix Figure 1-2As shown in the figure, a protective support for coal mine excavation includes a mobile platform 1. At the four corners of the bottom of the mobile platform 1, there are mobile wheels 2, and on one side of the mobile wheels 2, there are telescopic feet 3. At the positions of the mobile wheels 2 and the telescopic feet 3 on the mobile platform 1, there is a strengthening platform 15. One end of the telescopic foot 3 is connected above the mobile platform 1 to a first telescopic cylinder 4. Vertically arranged between the first telescopic cylinders 4 above the mobile platform 1 are a plurality of second telescopic cylinders 5. The top of the second telescopic cylinder 5 is connected to a support plate 6. The first telescopic cylinder 4 and the second telescopic cylinder 5 are both hydraulic cylinders, and a corresponding hydraulic pump is provided on the mobile platform 1. At both ends of the support plate 6, there are extended plates 7 that can be folded upwards. The length of the extended plate 7 is less than or equal to 1 / 2 of the length of the support plate 6. The two sides above the support plate 6 are rotatably connected to the extended plates 7 through a plurality of hinges 18, and the upper end surfaces of the plurality of hinges 18 are located below the upper end surface of the support plate 6, and can be opened by folding downwards or stored by folding upwards, while preventing the hinges 18 from being damaged during support.

[0027] In the present utility model, a liquid storage tank 8 and a storage battery 9 are provided in the middle of the mobile platform 1. One side of the liquid storage tank 8 is connected to a dust suppression nozzle 11 through a water pump 10. The water pump 10 is connected to the dust suppression nozzle 11 and the liquid storage tank 8 through a flexible telescopic pipe 20. On both sides of the dust suppression nozzle 11, there are connecting rods 12 connected to a lighting lamp 13. The storage battery 9 is electrically connected to the water pump 10 and the lighting lamp 13.

[0028] As shown in the specification appendix Figure 3 As shown in the figure, the bottom of the telescopic foot 3 is fixedly connected to a fixed gear disk 16, and a plurality of protruding positioning teeth 17 are provided at the bottom of the fixed gear disk 16.

[0029] As shown in the specification appendix Figure 4 As shown in the figure, a magnet 14 is provided at the top of the dust suppression nozzle 11, a fixing frame 19 is provided in the middle of the dust suppression nozzle 11, and the fixing frame 19 is rotatably connected to the dust suppression nozzle 11 through interference fit. The magnet 14 is located at the top of the fixing frame 19.

[0030] When the present utility model is specifically implemented, the protective support can be conveniently moved to the required position through the mobile wheels 2 at the four corners of the bottom. When it is moved to the designated position, the first telescopic cylinder 4 is started to make the telescopic feet 3 extend downwards. The fixed gear disk 16 at the bottom of the telescopic feet 3 and the plurality of positioning teeth 17 thereon come into contact with the ground, playing a role in fixing the entire protective support;

[0031] At the same time, the plurality of second telescopic cylinders 5 on the mobile platform 1 extend upwards, pushing the support plate 6 at the top to rise to a suitable height to provide support and protection for coal mine excavation operations. The extended plates 7 at both ends of the support plate 6 can be folded downwards according to needs to open, increasing the support area or folded upwards for storage;

[0032] During the mining process, the storage battery 9 provides power for the water pump 10 and the lighting lamp 13. The water pump 10 pumps out the liquid in the liquid storage tank 8 and conveys it to the dust suppression nozzle 11 through the flexible telescopic pipe 20. The dust suppression nozzle 11 sprays out the liquid, playing a role in dust suppression. The magnet 14 on the top of the dust suppression nozzle 11 can fix the dust suppression nozzle 11 at any position at the bottom of the support plate 6 or the extension plate 7.

[0033] When the angle of the dust suppression nozzle 11 needs to be adjusted, since the fixing frame 19 and the dust suppression nozzle 11 are rotationally connected through interference fit, the angle of the dust suppression nozzle 11 on the fixing frame 19 can be manually adjusted to achieve a better dust suppression effect. At the same time, the lighting lamp 13 connected by the connecting rod 12 can provide lighting for the mining operation.

[0034] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the specific implementation manners is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design structurally similar ways and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A protective support for coal mine excavation, including a mobile platform, characterized in that: The bottom corners of the mobile station are provided with mobile wheels, and a telescopic foot is arranged on one side of the mobile wheels. One end of the telescopic foot is connected with a first telescopic cylinder above the mobile station. A plurality of second telescopic cylinders are vertically arranged between the first telescopic cylinders above the mobile station. The top of the second telescopic cylinder is connected with a support plate, and the two ends of the support plate are provided with extended plates that can be turned upwards. A liquid storage tank and a storage battery are arranged in the middle of the mobile station. One side of the liquid storage tank is connected with a dust suppression nozzle through a water pump. Both sides of the dust suppression nozzle are connected with lighting lamps through connecting rods, and a magnet is arranged on the top of the dust suppression nozzle.

2. The protective support for coal mine excavation according to claim 1, characterized in that: Reinforcing platforms are arranged at the positions of the mobile wheels and the telescopic feet of the mobile station.

3. The protective support for coal mine excavation according to claim 1, characterized in that: The bottom of the telescopic foot is fixedly connected with a fixed gear disk, and a plurality of protruding positioning teeth are arranged at the bottom of the fixed gear disk.

4. A protective support for coal mine excavation according to claim 1, characterized in that: Both sides above the support plate are rotatably connected with the extended plates through a plurality of hinges, and the upper end surfaces of the plurality of hinges are located below the upper end surface of the support plate.

5. The protective support for coal mine excavation according to claim 1, characterized in that: The length of the extended plate is less than or equal to 1 / 2 of the length of the support plate.

6. The protective support for coal mine excavation according to claim 1, characterized in that: The water pump is connected with the dust suppression nozzle and the liquid storage tank through a flexible telescopic pipe.

7. A protective support for coal mine excavation according to claim 1, characterized in that: A fixing frame is arranged in the middle of the dust suppression nozzle. The fixing frame is rotatably connected with the dust suppression nozzle through interference fit, and the magnet is located on the top of the fixing frame.

8. A protective support for coal mine excavation according to claim 1, characterized in that: The storage battery is electrically connected with the water pump and the lighting lamp.

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