Coal mining protection device for coal mine

Abstract

The utility model discloses a coal mining protection device for a coal mine, and relates to the technical field of coal mining protection for the coal mine. The coal mine protection device comprises a protection supporting seat, an arched door opening is formed in the middle of the protection supporting seat, a coal mine protection supporting plate is fixedly connected to the upper portion of the protection supporting seat through a hydraulic cylinder, and connecting supporting rods are symmetrically and fixedly connected to the bottoms of the coal mine protection supporting plate on the front side and the rear side of the hydraulic cylinder. The arched door opening is formed in the middle of the protection supporting seat, so that personnel can smoothly pass through, blocking of the protection device to a mine tunnel can be reduced, the coal mine protection supporting plate can drive the connecting supporting rod to pull the walking wheel to move upwards, the walking wheel moves into the containing groove, and the limiting inserting rod is inserted into the ground; and when a hydraulic cylinder drives a coal mine protection supporting plate to move downwards to be folded, walking wheels can make contact with the ground, the bottom of a protection supporting base and a limiting inserting rod are jacked upwards to be separated from the ground, and therefore personnel can conveniently move the device through the walking wheels.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine protection technology, and in particular relates to a coal mine protection device. Background Technology

[0002] In mining operations, coal mining and transportation are typically carried out in mines. Therefore, protective devices are needed inside tunnels to support the mine shaft and ensure the safety of workers. These protective devices play a crucial role in underground operations. Existing coal mining protective devices not only lack height adjustment but are also mostly erected manually, wasting significant manpower. A search revealed a patent application with application number 202022628599.7, which discloses a coal mining protective device comprising a base plate, a switch, traveling wheels, a fixed screw, a turntable, an electric push rod, a fixing plate, and a screw. A driven wheel is fixedly mounted on the screw, which vertically passes through the driven wheel and is concentrically arranged. A motor is bolted to the top of the fixing plate, and the motor's output shaft is fixedly connected to the driving wheel.

[0003] However, during actual use, the applicant found that the protective device, while supporting and protecting the top of the coal mine roadway, would hinder the smooth passage of personnel in the coal mine roadway due to the obstruction of its own structure. In view of this, we propose a coal mine mining protection device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a coal mining protection device, including a protective support base. An arched doorway is provided in the middle of the protective support base. A coal mine protective support plate is fixedly connected to the top of the protective support base via a hydraulic cylinder. Connecting support rods are symmetrically fixedly connected to the bottom of the coal mine protective support plates on both sides of the hydraulic cylinder. A storage groove is provided at the bottom of the protective support base below each connecting support rod. The lower end of the connecting support rod extends into the storage groove and is fixedly connected to a traveling wheel. A limit rod is fixedly connected to the bottom of the protective support base between the two storage grooves on the same side.

[0006] Preferably, three limiting rods are provided at equal intervals along the front-to-back direction at the bottom of the protective support on each side.

[0007] Preferably, the lower end of the limiting rod is provided with a ground insertion tip.

[0008] Preferably, a controller is fixedly installed on the front side of the protective support, a storage battery is fixedly connected to the side wall of the arched doorway, the controller is electrically connected to the storage battery through a wire, and the hydraulic cylinder is electrically connected to the controller through a wire.

[0009] Preferably, the protective support has symmetrical side grooves on both sides, and two hydraulic cylinders are provided. The bottom of the hydraulic cylinder is fixedly installed at the bottom of the side groove, and the telescopic end of the hydraulic cylinder is fixedly connected to the bottom of the coal mine protective support plate.

[0010] Preferably, the top of the coal mine protective support plate is provided with an arc-shaped support surface.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses a coal mine protection device. By moving the device to the required support location inside the coal mine and driving a hydraulic cylinder to move the coal mine protection support plate upward, the arc-shaped support surface at the top of the protection plate abuts against the top of the coal mine tunnel, thus automatically completing the protection support for coal mining. This eliminates the need for manual installation, making it more convenient. Furthermore, by opening an arched doorway in the middle of the protection support, personnel can pass through smoothly, reducing the obstruction of the protection device to the mine tunnel. During the upward movement of the protection support plate by the hydraulic cylinder, the protection plate drives the connecting rod to pull the traveling wheels upward, moving the wheels into the storage slot. This allows the bottom of the protection support to contact the ground, and the limiting rod to insert into the ground, enabling the device to be stably parked. When the hydraulic cylinder moves the protection support plate downward to retract, the connecting rod drives the traveling wheels downward, bringing them into contact with the ground. This lifts the bottom of the protection support and the limiting rod upward until they are separated from the ground, facilitating movement of the device by personnel via the traveling wheels. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view schematic diagram of a coal mine protection device according to the present invention;

[0015] Figure 2 This is a bottom view schematic diagram of the structure of a coal mine protection device according to the present invention;

[0016] Figure 3 This is a front view of a coal mine protection device according to the present invention.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Protective support base; 11. Arched doorway; 12. Side groove; 13. Storage groove; 2. Hydraulic cylinder; 3. Coal mine protective support plate; 31. Arc-shaped support surface; 4. Connecting support rod; 5. Controller; 6. Traveling wheel; 7. Limiting rod; 8. Storage battery. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution:

[0021] A coal mine protection device includes a protective support base 1 with an arched doorway 11 in the center. A coal mine protective support plate 3 is fixedly connected to the top of the protective support base 1 via a hydraulic cylinder 2. The top of the coal mine protective support plate 3 has an arc-shaped support surface 31. Side grooves 12 are symmetrically formed on both sides of the protective support base 1. Two hydraulic cylinders 2 are provided, with their bottoms fixedly installed at the bottom of the side grooves 12. The telescopic ends of the hydraulic cylinders 2 are fixedly connected to the bottom of the coal mine protective support plate 3. By moving the device to the required support position inside the coal mine and driving the hydraulic cylinders 2 to move the coal mine protective support plate 3 upward, the arc-shaped support surface 31 at the top of the coal mine protective support plate 3 abuts against the top of the coal mine tunnel, thus automatically completing the protective support for coal mining. This eliminates the need for manual construction, making it more convenient. By opening an arched doorway 11 in the middle of the protective support 1, personnel can pass through smoothly, reducing the obstruction of the protective device to the mine roadway. A controller 5 is fixedly installed on the front side of the protective support 1, and a storage battery 8 is fixedly connected to the side wall of the arched doorway 11. The controller 5 is electrically connected to the storage battery 8 through a wire, and the hydraulic cylinder 2 is electrically connected to the controller 5 through a wire. In use, the protective device can be moved to the position in the coal mine roadway where support and protection are required. Then, the controller 5 drives the hydraulic cylinder 2 to move the coal mine protective support plate 3 upward, so that the arc-shaped support surface 31 at the top of the coal mine protective support plate 3 effectively abuts against the top of the coal mine roadway, thus providing support and protection for the top of the coal mine roadway at that location. During use, personnel can pass smoothly through the arched doorway 11 in the coal mine roadway at that location.

[0022] The bottom of the coal mine protective support plate 3 on both sides of the hydraulic cylinder 2 is symmetrically fixed with connecting support rods 4. The bottom of the protective support seat 1 below each connecting support rod 4 is provided with a storage groove 13. The lower end of the connecting support rod 4 extends into the storage groove 13 and is fixedly connected with a traveling wheel 6. The bottom of the protective support seat 1 between the two storage grooves 13 on the same side is fixedly connected with a limiting rod 7. Three limiting rods 7 are evenly spaced along the front-back direction at the bottom of the protective support seat 1 on each side. The lower end of the limiting rod 7 is provided with a ground insertion point. When the hydraulic cylinder 2 drives the coal mine protective support plate 3 to move upward, the coal mine protective support plate 3 can drive the connecting support rod 4 to pull the traveling wheel 6 upward, so that the traveling wheel 6 moves into the storage groove 13, thereby allowing the bottom of the protective support seat 1 to contact the ground and the limiting rod 7 to insert into the ground, so that the device can be stably parked. And when the hydraulic cylinder 2 drives the coal mine protective support plate 3 to move downward... When the device is retracted, the connecting support rod 4 drives the traveling wheels 6 downwards, bringing them into contact with the ground. This lifts the bottom of the protective support 1 and the limiting rod 7 upwards, separating them from the ground. This allows personnel to move the device using the traveling wheels 6. During the upward movement of the coal mine protective support plate 3, the connecting support rod 4 drives the traveling wheels 6 upwards into the storage slot 13. At this time, the bottom of the protective support 1 contacts the ground, and the limiting rod 7 is inserted into the ground, achieving stable parking of the device. When the hydraulic cylinder 2 drives the coal mine protective support plate 3 downwards to retract it, the coal mine protective support plate 3 drives the connecting support rod 4 and the traveling wheels 6 downwards together, moving the traveling wheels 6 out of the storage slot 13 and bringing them into contact with the ground. This lifts the bottom of the protective support 1 and the limiting rod 7 upwards, separating them from the ground. At this time, the device can be moved using the traveling wheels 6.

[0023] Working principle: In use, the protective device can be moved to the required support location in the coal mine roadway. Then, the controller 5 drives the hydraulic cylinder 2 to move the coal mine protective support plate 3 upward, so that the arc-shaped support surface 31 at the top of the coal mine protective support plate 3 effectively abuts against the top of the coal mine roadway. During the upward movement of the coal mine protective support plate 3, the connecting support rod 4 drives the traveling wheel 6 to move upward into the receiving groove 13. At this time, the bottom of the protective support base 1 can contact the ground, and the limiting rod 7 is inserted into the ground, realizing the stable parking of the device. This device can provide support and protection for the top of the coal mine roadway. During use, personnel can pass smoothly through the arched doorway 11 in the coal mine roadway. When the hydraulic cylinder 2 drives the coal mine protective support plate 3 to move downward and retract, the coal mine protective support plate 3 can drive the connecting support rod 4 and the traveling wheel 6 to move downward together, so that the traveling wheel 6 can be removed from the storage groove 13 and make the traveling wheel 6 contact the ground. This can lift the bottom of the protective support seat 1 and the limiting rod 7 upward until they are off the ground. At this time, the device can be moved by the traveling wheel 6.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A coal mine extraction protection device comprising a protection support (1), characterized in that: The middle part of the protective support (1) is provided with an arch-shaped door hole (11), the upper part of the protective support (1) is fixedly connected with a coal mine protective support plate (3) through a hydraulic cylinder (2), the bottom of the coal mine protective support plate (3) on the front and back sides of the hydraulic cylinder (2) is fixedly connected with a connecting support rod (4), the bottom of the protective support (1) below each connecting support rod (4) is provided with a receiving groove (13), the lower end of the connecting support rod (4) extends into the receiving groove (13) and is fixedly connected with a walking wheel (6), and the bottom of the protective support (1) between the two receiving grooves (13) on the same side is fixedly connected with a limiting insertion rod (7).

2. A coal mine extraction protection device according to claim 1, characterised in that, Three limiting insertion rods (7) are arranged on the bottom of the protective support (1) on each side at equal intervals in the front and back directions.

3. A coal mine extraction protection device according to claim 2, characterised in that, The lower end of the limiting insertion rod (7) is provided with an insertion ground tip.

4. The coal mine extraction protection device of claim 1, wherein, A controller (5) is fixedly arranged on the front side of the protective support (1), a storage battery (8) is fixedly connected to the side wall of the arch-shaped door hole (11), the controller (5) is electrically connected with the storage battery (8) through wires, and the hydraulic cylinder (2) is electrically connected with the controller (5) through wires.

5. The coal mine extraction protection device of claim 1, wherein, Two side grooves (12) are symmetrically arranged on the two sides of the protective support (1), the hydraulic cylinder (2) is provided with two, the bottom of the hydraulic cylinder (2) is fixedly arranged at the bottom of the side groove (12), and the telescopic end of the hydraulic cylinder (2) is fixedly connected with the bottom of the coal mine protective support plate (3).

6. The coal mine extraction protection device of claim 1, wherein, An arc-shaped support surface (31) is arranged on the top of the coal mine protective support plate (3).

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