Tunneling safety shield device for ore body mining

Abstract

The utility model relates to the technical field of safety shield devices for ore body mining, and particularly discloses a tunneling safety shield device for ore body mining. Comprising bottom plates which are symmetrically arranged and detachably spliced, moving wheels arranged at the bottoms of the bottom plates, side splicing type sliding plates which are arranged on the upper sides of the bottom plates and used for shielding collapse of the side faces of an ore body, inserting blocks arranged on the bottom plates on one sides of the splicing type sliding plates, bolts connected with the inserting blocks and clamping grooves formed in the inner sides of the splicing type sliding plates. The device solves the problems that the construction speed of a traditional safety shield support is reduced, and the traditional safety shield support cannot keep up with the tunneling speed under many conditions.

Description

Technical Field

[0001] This application relates to the technical field of safety protection devices for ore body mining, and specifically discloses a tunneling safety protection device for ore body mining. Background Art

[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 tunnels to extract coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, it is generally chosen to directly strip the surface soil layer to dig coal, which is a surface coal mine; During the coal mining process, continuous tunneling is required, and during the tunneling process, protection is needed to avoid sudden collapse accidents during tunneling, and this phenomenon mostly occurs at the top and side wall positions of coal mine tunnels;

[0003] At present, during the coal mining process, continuous tunneling is required, and during the tunneling process, protection is needed to avoid sudden collapse accidents during tunneling. The existing protection methods mainly rely on support, but the construction of the support is time-consuming and cannot keep up with the tunneling speed of the mining equipment, resulting in the need for the mining equipment to cooperate with the installation of the support, reducing the mining efficiency. At the same time, during the tunneling process, in the event of a sudden collapse accident, the existing tunneling protection devices for coal mine mining lack an effective buffer structure, resulting in a short service life of the protection device. Therefore, it is necessary to design a protection device that can be quickly erected and has a good buffer effect. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the problem that the construction speed of the traditional safety protection support is slowed down and in many cases cannot keep up with the tunneling speed.

[0005] To achieve the above object, the present utility model provides the following basic solution:

[0006] A tunneling safety protection device for ore body mining, including symmetrically arranged and detachable spliced bottom plates, moving wheels arranged at the bottom of the bottom plates, side spliced sliding plates arranged on the upper side of the bottom plates for protecting the side collapse of the ore body, insertion blocks of the bottom plates arranged on one side of the spliced sliding plates, pins connected to the insertion blocks, and clamping grooves opened inside the spliced sliding plates. A top spliced sliding plate is slidably connected in the clamping grooves, and the pins pass through the insertion blocks and are connected to the inner bottom surface of the ore body.

[0007] The principle and effect of this basic solution are as follows:

[0008] 1. Compared with the prior art, the structure of this device is simple and ingenious. The core of this device lies in: a detachable and splicable bottom plate, and moving wheels are arranged at the bottom of the bottom plate, enabling the bottom plate to move forward as the tunneling depth progresses. And because it is a detachable and splicable bottom plate, the staff outside the mine cave can reasonably add the length of the bottom plate according to the tunneling depth, so that this device can always protect the ore body during tunneling, with a relatively high safety factor.

[0009] 2. Compared with the prior art, this device is provided with a detachable and splicable bottom plate, a side splicable sliding plate and a top splicable sliding plate. The side splicable sliding plate and the top splicable sliding plate are the same as the detachable and splicable bottom plate. The staff outside the mine cave can reasonably add the length according to the tunneling depth, so that this device can always protect the ore body during tunneling, with a relatively high safety factor.

[0010] 3. Compared with the prior art, since the detachable and splicable bottom plate, the side splicable sliding plate and the top splicable sliding plate in this device are all spliced, the building speed is relatively fast, which can solve the problem that the building speed of the traditional safety cover support slows down and often cannot keep up with the tunneling speed in many cases.

[0011] 4. Compared with the prior art, it has an advantage in strength. An insertion block of the bottom plate is arranged on one side of the splicable sliding plate, and a pin is connected to the insertion block. The pin passes through the insertion block and is connected to the inner bottom surface of the ore body, using the pin to maintain the lateral stability of the bottom plate. When the side frame collapses, the bottom plate can provide sufficient lateral support force.

[0012] 5. Compared with the prior art, since the bottom plate can provide sufficient lateral support force, for the possible collapsing frame, most of the force acts on the side splicable sliding plate. However, the side splicable sliding plate and the top splicable sliding plate, and the top splicable sliding plate can help the side splicable sliding plate share the side pressure, ensuring the safety and stability of the side splicable sliding plate.

[0013] 6. Compared with the prior art, the top splicable sliding plate of this device is set based on the side splicable sliding plate. When the side splicable sliding plate is stable enough, the top splicable sliding plate is also stable. The top splicable sliding plate and the side splicable sliding plate support each other to achieve sufficient stability of the whole device.

[0014] Furthermore, the bottom plate is composed of several connecting plates, and the adjacent connecting plates are spliced. The connecting plates are provided with connecting grooves and clamping blocks, and the clamping blocks are inserted into the connecting grooves to realize the splicing of adjacent connecting plates.

[0015] Furthermore, the upper surfaces of the connecting plates are all provided with the same grooves. After the adjacent connecting plates are spliced, the grooves form a sliding groove, and the side splicable sliding plate slides in the sliding groove.

[0016] Further, the side splicing sliding plate is formed by splicing a plurality of vertical plates.

[0017] Further, a handle is provided on the inner side of the vertical plate.

[0018] Further, a through groove is formed in the inner side of the bottom plate located at the connecting plate, the insertion block is slidably connected in the through groove, a through hole is provided on the insertion block, and the pin is inserted into the ground after being connected to the through hole.

[0019] Further, the clamping groove is a double groove structure, the double groove structure includes a first groove and a second groove, the first groove is formed at the head section of the inner side of the vertical plate, and the second groove is formed at the tail section of the inner side of the vertical plate.

[0020] Further, the top splicing sliding plate is formed by splicing a plurality of reinforcing plates and arc plates, a first block and a second block are provided on one side of the reinforcing plate close to the clamping groove, the first block and the second block are respectively inserted into the first groove and the second groove, the arc plate is placed between the reinforcing plates, and both ends of the arc plate are fixedly connected to the reinforcing plates. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Shows a schematic structural diagram of a tunneling safety protection device for ore body mining proposed in an embodiment of the present application;

[0023] Figure 2 Shows another perspective structural diagram of a tunneling safety protection device for ore body mining proposed in an embodiment of the present application Figure 1 in. Detailed Embodiments

[0024] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, will detail the specific implementation manners, structures, features, and effects according to the present invention as follows.

[0025] The reference numerals in the accompanying drawings of the specification include: bottom plate 1, clamping block 2, moving wheel 3, groove 4, vertical plate 5, cylindrical block 6, clamping groove 7, first block 8, reinforcing plate 9, arc plate 10, through groove 11, insertion block 12, pin 13.

[0026] Embodiments are as follows Figure 1 andFigure 2 As shown in the figure:

[0027] A tunneling safety shielding device for ore body mining, comprising a bottom plate 1 which is symmetrically arranged and detachably spliced, a moving wheel 3 arranged at the bottom of the bottom plate 1, a side spliced sliding plate arranged on the upper side of the bottom plate 1 for shielding the collapse of the side of the ore body, an insertion block 12 of the bottom plate 1 arranged on one side of the spliced sliding plate, a pin 13 connected to the insertion block 12, and a clamping groove 7 opened on the inner side of the spliced sliding plate. A top spliced sliding plate is slidably connected in the clamping groove 7, and the pin 13 passes through the insertion block 12 and is connected to the inner bottom surface of the ore body.

[0028] The bottom plate 1 is composed of several connecting plates, which are spliced adjacent to each other. The connecting plates are provided with connecting grooves and clamping blocks 2, and the clamping blocks 2 are inserted into the connecting grooves to realize the splicing of adjacent connecting plates.

[0029] The upper surfaces of the connecting plates are all provided with the same grooves 4. After adjacent connecting plates are spliced, the grooves 4 form a sliding groove, and the side spliced sliding plate slides in the sliding groove. The side spliced sliding plate is composed of several vertical plates 5 spliced together. The vertical plates 5 are spliced by using cylindrical blocks 6 and circular grooves. A handle is arranged on the inner side of the vertical plate 5, and the handle is used to pull the vertical plate 5;

[0030] In order to improve the stability of the vertical plate 5, a through groove 11 is opened on the inner side of the bottom plate 1 where the connecting plate is located. The insertion block 12 is slidably connected in the through groove 11. The insertion block 12 is provided with a through hole, and the pin 13 is connected to the through hole and then inserted into the ground. After the pin 13 is connected to the through hole and inserted into the ground, the insertion block 12 is fixed and no longer moves. The insertion block 12 provides lateral support for the vertical plate 5;

[0031] If the bottom plate 1 needs to move forward due to tunneling requirements, the pin 13 can be pulled out, and the bottom plate 1 can then be advanced smoothly following the progress of the tunneling project.

[0032] The clamping groove 7 is of a double-groove structure. The double-groove structure includes a first groove and a second groove. The first groove is opened at the head section of the inner side of the vertical plate 5, and the second groove is opened at the tail section of the inner side of the vertical plate 5. The top spliced sliding plate is composed of several reinforcing plates 9 and arc plates 10 spliced together. The first block 8 and the second block are arranged on the outer side of the reinforcing plate 9 close to the clamping groove 7. The first block 8 and the second block are respectively inserted into the first groove and the second groove. The arc plate 10 is placed between the reinforcing plates 9, and both ends of the arc plate 10 are fixedly connected to the reinforcing plates 9.

[0033] Specific implementation process:

[0034] In the first step, when tunneling starts, as the tunneling depth progresses, a pit is formed. There is a risk of collapse in the pit. Therefore, support is needed to protect the relevant workers, which is the original design intention of this device;

[0035] In the second step, install the bottom plates 1 on both sides of the bottom of the hole pit. The moving wheels 3 assist in the installation of the bottom plates 1. After the installation of the bottom plates 1 is completed, install the side spliced sliding plates and the top spliced sliding plates;

[0036] In the third step, as the tunneling depth continues to advance, it is necessary to change the positions of the side spliced sliding plates and the top spliced sliding plates so that their positions continue to advance with the tunneling depth. At this time, install the side spliced sliding plates and the top spliced sliding plates at the outermost part corresponding to the tunneling depth, thus forming the support and protection for the entire hole pit;

[0037] In the fourth step, after the tunneling work is completed, the side spliced sliding plates and the top spliced sliding plates can be disassembled in sequence, and finally the bottom plates 1 can be disassembled.

[0038] The support construction speed of the entire device is fast enough, and the support disassembly speed of the entire device is also fast enough to keep up with the tunneling speed.

[0039] This device solves the problem that the construction speed of the traditional safety cover support slows down and often cannot keep up with the tunneling speed in many cases.

[0040] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A safety shielding device for excavation of an ore body, characterized in that: It includes a symmetrically arranged and detachable spliced ​​base plate, a moving wheel arranged at the bottom of the base plate, a side spliced ​​sliding plate arranged on the upper side of the base plate for protecting the side collapse of the ore body, an insertion block of the base plate arranged on one side of the spliced ​​sliding plate, a pin connected to the insertion block and a clamping groove opened on the inner side of the spliced ​​sliding plate, a top spliced ​​sliding plate is slidably connected in the clamping groove, and the pin passes through the insertion block and is connected to the bottom surface of the ore body.

2. The excavation safety shielding device for ore body mining according to claim 1 is characterized in that: The bottom plate is composed of a plurality of connecting plates, which are formed by splicing adjacent connecting plates. The connecting plates are provided with connecting grooves and clamping blocks, and the clamping blocks are inserted into the connecting grooves to realize the splicing of adjacent connecting plates.

3. The excavation safety shielding device for ore body mining according to claim 2 is characterized in that: The upper surfaces of the connecting plates are all provided with the same grooves. After the adjacent connecting plates are spliced ​​together, the grooves form sliding grooves, and the side spliced ​​sliding plates slide in the sliding grooves.

4. The excavation safety shielding device for ore body mining according to claim 3 is characterized in that: The side spliced ​​sliding plate is formed by splicing a plurality of vertical plates.

5. The excavation safety shielding device for ore body mining according to claim 4 is characterized in that: A handle is provided on the inner side of the vertical plate.

6. The excavation safety shielding device for ore body mining according to claim 3 is characterized in that: The bottom plate is provided with a through groove on the inner side of the connecting plate, the insert block is slidably connected in the through groove, a through hole is provided on the insert block, and the latch is connected with the through hole and then inserted into the ground.

7. The excavation safety shielding device for ore body mining according to claim 5 is characterized in that: The clamping slot is a double slot structure, which includes a first slot and a second slot. The first slot is opened at the head section of the inner side of the vertical plate, and the second slot is opened at the tail section of the inner side of the vertical plate.

8. The excavation safety shielding device for ore body mining according to claim 7 is characterized in that: The top-jointed sliding plate is formed by splicing a plurality of reinforcing plates and arc plates. The reinforcing plate is provided with a first block and a second block on one side close to the clamping groove. The first block and the second block are respectively inserted into the first groove and the second groove. The arc plate is placed between the reinforcing plates, and the two ends of the arc plate are respectively fixed to the reinforcing plates.

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