Protective device for mine safety

Abstract

The utility model discloses a protection device for mine safety, which comprises a top plate and side plates rotationally connected with the bottoms of the two sides of the top plate, the top plate is made of alloy spring steel, the two sides of the top plate are rotationally connected with connecting plates, and butt joint rings are arranged at the ends of the connecting plates. Compared with a flat-plate-shaped top plate and an arc-shaped top plate, the shock absorption and impact resistance effects are higher, the protection performance of the protection device can be improved, the shape of the top plate of the protection device can be changed according to needs, the protection device has higher impact resistance, meanwhile, the top plate is convenient to align at ordinary times to be folded and stored, and the service life of the protection device is prolonged. The top plate is kept in a state of being tensioned inwards under the action of tension of the connecting plates, so that the arc-shaped state is maintained for protection, when the connecting plates are in butt joint, the supporting columns penetrate through the round holes to complete butt joint, then the connecting plates are pulled inwards for butt joint, the supporting blocks can abut against the bottom of the top plate, and the arc structure of the top plate is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine safety technology, especially a protection device for mine safety. BACKGROUND

[0002] Mining is to use artificial or mining machinery to exploit and utilize natural mineral resources of value, mining machinery is the machinery directly used for mineral exploitation and enrichment operations, including mining machinery and beneficiation machinery, the working principle and structure of prospecting machinery are mostly same or similar to the mining machinery used for exploiting the same kind of minerals, in a broad sense, prospecting machinery also belongs to mining machinery, in addition, a large number of hoists, conveyors, ventilators and drainage machinery are also applied in mining operations;

[0003] In the mining operation, the mining environment is complex, which may cause damage to the mining equipment, therefore, a protection device is needed to protect the mining equipment and workers and improve the safety factor.

[0004] The existing protection device for mine safety mostly uses a flat top plate for protection, and the circular arc top plate has better buffering effect, but the volume is large and is not convenient to store and carry.

[0005] In the Chinese patent document with the publication number CN219605302U, a protection device for mine safety is disclosed, which comprises a support plate, a protection mechanism is arranged on the top of the support plate, a protection plate is arranged on the top of the protection mechanism, a support rod is fixedly connected to the bottom of the support plate, an adjusting mechanism is arranged in the inner cavity of the support rod, a stabilizing mechanism is arranged on both sides of the support plate, the protection mechanism comprises a spring, one end of the spring is welded to the top of the support plate, the other end of the spring is welded to the bottom of the protection plate, and a soft sleeve is fixedly connected to the bottom of the protection plate. The protection device for mine safety provided by the utility model solves the problem that due to the complex construction environment of mining, there are many large and small stones scattered on the construction site, and if the scattered stones fall on the mechanical equipment, the equipment may be damaged, affecting the subsequent mining work speed, but the protection device for mine safety occupies a large volume and is not convenient to carry and store.

[0006] In order to solve the above-mentioned problems in the prior art, a protection device for mine safety is provided, which is a problem worth studying. UTILITY MODEL CONTENTS

[0007] The utility model aims at overcoming the shortcomings that the existing protection device for mine safety mostly uses a flat top plate for protection, and the circular arc top plate has better buffering effect, but the volume is large and is not convenient to store and carry, and provides a protection device for mine safety, which realizes the technical effect that the circular arc top plate of the protection device is conveniently folded and stored.

[0008] The utility model discloses a purpose is realized through the following technical schemes:

[0009] A mine safety protection device, including roof, and the side plate of rotation connection in the bottom of roof both sides, the material quality of roof is alloy spring steel, both sides of roof are all rotationally connected with the interface board.

[0010] The roof is flat when not under external force, and the roof of the protection device can change shape as needed, with strong impact resistance, and folding storage is convenient.

[0011] The end of the interface board is fixedly connected with the butt joint ring, the butt joint ring on two interface boards is complementary, the internal thread is formed in the butt joint ring, and the screw rod is connected with the butt joint ring through the internal thread, and the roof is kept in the state of being pulled inwards under the tension of the interface board, so that the circular arc state is maintained for protection.

[0012] The width of the interface board and the roof is equal, and the length of the roof is π times the length of the interface board.

[0013] A plurality of round holes are formed in the interface board, a plurality of support columns are assembled and connected to the interface board through the round holes, and a support block is fixedly connected to the top of the support column on the same side.

[0014] The torsion spring is sleeved on the rotating shaft of the interface board, the torsion of the torsion spring makes the interface board rotate towards the roof, the torsion of the torsion spring is greater than the rotation of the interface board, and the interface board is attached to the bottom of the roof under the action of the torsion of the torsion spring.

[0015] The bottom of the side plate is fixedly connected with the electric push rod on both sides, and the output end of the electric push rod is fixedly connected with the anchor rod.

[0016] The positions of the electric push rods on both sides are staggered, and the lengths of the four electric push rods are adjusted respectively.

[0017] Positive beneficial effects:

[0018] 1、The mine safety protection device, relative to the flat roof, the circular arc roof has stronger shock absorption and impact resistance, can improve the protection performance of the protection device, and the roof of the protection device can change shape as needed, with strong impact resistance, and folding storage is convenient.

[0019] 2. The mine safety protection device, under the tension of the connecting plate, keeps the roof in a state of being pulled inward, thereby maintaining the circular arc state for protection.

[0020] 3. The mine safety protection device, when butt joint of the connecting plate is carried out, first completes butt joint by passing the support column through the circular hole, then pulls the connecting plate inward to butt joint, so that the support block can abut against the bottom of the roof, and the circular arc structure of the roof is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in the figure;

[0022] Figure 2 The structure of the utility model is shown in the figure Figure 1 The enlarged structure of position A in the utility model is shown in the figure;

[0023] Figure 3 The structure of the utility model is shown in the figure Figure 1 The enlarged structure of position B in the utility model is shown in the figure;

[0024] Figure 4 The sectional structure of the utility model is shown in the figure;

[0025] Figure 5 The structure of the utility model is shown in the figure Figure 4 The enlarged structure of position C in the utility model is shown in the figure;

[0026] Figure 6 The structure of the utility model in the folded state is shown in the figure;

[0027] Figure 7 The structure of the utility model in the folded state is shown in the figure;

[0028] Figure 8 The structure of the utility model is shown in the figure Figure 7 The enlarged structure of position D in the utility model is shown in the figure.

[0029] In the figure: 1 - roof, 2 - side plate, 3 - connecting plate, 4 - butt joint ring, 5 - internal thread, 6 - circular hole, 7 - support column, 8 - support block, 9 - torsion spring, 10 - electric push rod, 11 - anchor rod. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0031] Embodiment 1

[0032] AsFigures 1 to 8 As shown, a mine safety protection device includes a top plate 1 and side plates 2 rotatably connected to the bottom of both sides of the top plate 1. The top plate 1 is made of alloy spring steel, and connecting plates 3 are rotatably connected to both sides of the top plate 1.

[0033] like Figures 6 to 8 As shown, when the top plate 1 is not subjected to external force, it is in a flat state under its own elastic force. By using alloy spring steel material for the top plate 1, it can remain in a flat state under its own elastic force during storage or transportation, which is convenient for folding. Compared with the arc-shaped top plate 1, it saves more space and is more convenient for storage and transportation. When the top plate 1 is needed as a protective structure, the two connecting plates 3 are pulled inward to connect the ends of the two connecting plates 3 together. Then, the two ends of the top plate 1 are subjected to inward pulling force, which causes the middle of the top plate 1 to arch upward to form an arc structure, protecting the mining machinery or workers below. Compared with the flat top plate, the arc-shaped top plate has a stronger shock absorption and impact resistance effect, which can improve the protective performance of the protective device. Moreover, the top plate of the protective device can be shaped as needed, which has strong impact resistance and is convenient for folding and storage when not in use.

[0034] Furthermore, the elastic force experienced by the top plate 1 when it bends inward is less than 200 Newtons, allowing manpower to bend the top plate 1, converting it into a bent state and fixing it in place.

[0035] like Figures 1 to 3 As shown, each end of the connecting plate 3 is fixedly connected with a mating ring 4. The mating rings 4 on the two connecting plates 3 are complementary to each other. The mating ring 4 has an internal thread 5. The mating ring 4 is connected to a screw through the internal thread. By setting connecting plates 3 with mating rings 4 on both sides of the top plate 1, when the connecting plates 3 are mated, the mating rings 4 on the two connecting plates 3 are aligned, and the screw passes through the internal thread 5 on the mating ring 4 to complete the mating and fixing of the two connecting plates 3. Under the tension of the connecting plates 3, the top plate 1 is kept in an inwardly tightened state, thereby maintaining the arc shape for protection.

[0036] like Figure 1 As shown, the widths of the connecting plate 3 and the top plate 1 are equal, and the length of the top plate 1 is π times the length of the connecting plate 3. By limiting the length ratio of the connecting plate 3 and the top plate 1, the top plate 1 after bending is made into a semi-circle, giving it excellent pressure resistance and protection.

[0037] Example 2

[0038] like Figures 4 to 8As shown, a plurality of round holes 6 are formed in the adapter plate 3, and a plurality of support columns 7 are assembled and connected to the adapter plate 3 through the round holes 6. The top of the same side support column 7 is fixedly connected with a support block 8. The top of the support block 8 is adapted to the shape of the bottom arc surface of the arc-shaped top plate 1. The support column 7 and the support block 8 can support the arc-shaped top plate 1 by setting the support column 7 assembled above the adapter plate 3, thereby improving the support effect of the arc-shaped top plate 1. When the adapter plate 3 is docked, the support column 7 is first inserted through the round hole 6 to complete the docking, and then the adapter plate 3 is pulled inward to dock, so that the support block 8 can tightly abut against the bottom of the top plate 1, and the arc structure of the top plate 1 is more stable.

[0039] Further, the diameter of the support column 7 is adapted to the diameter of the round hole 6. The bottom of the support column 7 is fixedly connected with a limiting ring. The limiting ring can cooperate with the adapter plate 3 to limit the top of the support column 7, so that the support column 7 and the support block 8 remain in a stable state between the top plate 1 and the adapter plate 3.

[0040] Further, a damping material such as sponge or rubber is arranged between the top plate 1 and the adapter plate 3. When the arc-shaped top plate 1 is impacted, it can further dampen and buffer, thereby improving the impact resistance of the top structure of the protective device. Alternatively, an ethylene detection device is arranged between the top plate 1 and the adapter plate 3 to detect the ethylene content in the mine in real time. When the ethylene content exceeds the standard, the workers are reminded to take measures or retreat in time.

[0041] As shown in Figures 1 to 5 The pivot shaft of the adapter plate 3 is sleeved with a torsion spring 9. The torsion of the torsion spring 9 causes the adapter plate 3 to rotate towards the top plate 1. The torsion of the torsion spring 9 is greater than the rotation of the adapter plate 3. When the top plate 1 is not subjected to the pulling force of the adapter plate 3, it is in a flat state. The adapter plate 3 is in close contact with the bottom of the top plate 1 under the action of the torsion of the torsion spring 9. The top plate 1 and the adapter plate 3 that are in close contact with each other are convenient to store and transport, and the adapter plate 3 is prevented from shaking relative to the top plate 1 during transportation.

[0042] Example 3

[0043] As shown in Figures 1 to 4 The bottom of the side plate 2 is fixedly connected with an electric push rod 10 on both sides. The output end of the electric push rod 10 is fixedly connected with an anchor rod 11. The electric push rod 10 with the anchor rod 11 is arranged at the bottom of the side plate 2. The extension and retraction of the electric push rod 10 can control the overall height of the protective device, so that the height of the protective device can be adjusted according to the height of the protected device or the worker. The anchor rod 11 is used to be nailed into the soil layer of the mine, thereby improving the stability of the protective device.

[0044] As shown in Figures 6 to 7As shown, the positions of the two side electric push rods 10 are staggered, the lengths of the four electric push rods 10 are adjusted respectively, by staggering the positions of the two side electric push rods 10, when the top plate 1 is in a flat state for storage, the side plate 2 can be rotated upward to overlap with the top plate 1 to reduce the storage volume, then the staggered electric push rods 10 can avoid the mutual interference of the two side electric push rods 10 affecting the operation effect, when the installation position of the protective device is uneven ground, then the lengths of the four electric push rods 10 can be adjusted respectively to adjust, so that the protective device can be stably installed on uneven ground.

[0045] The working principle of the utility model is as follows:

[0046] S1, the top plate 1 is in a flat state under the action of its own elastic force, facilitating folding, and the relatively circular arc-shaped top plate 1 saves more space and is more convenient to store and transport.

[0047] S2, when the top plate 1 is needed as a protective structure, two connecting plates 3 are pulled inward, the end portions of the two connecting plates 3 are connected together, the two ends of the top plate 1 are subjected to inward tension, so that the middle part of the top plate 1 is arched upward to form a circular arc structure, protecting the mine machinery or workers below.

[0048] S3, when the connecting plates 3 are butted, the butt rings 4 on the two connecting plates 3 are aligned, the screw rod is passed through the internal thread 5 on the butt ring 4, the butt joint of the two connecting plates 3 is completed, the top plate 1 is kept in a state of being pulled inward under the tension of the connecting plate 3, so as to maintain the circular arc state for protection.

[0049] S4, when the top plate 1 is in a flat state for storage, the side plate 2 can be rotated upward to overlap with the top plate 1 to reduce the storage volume, then the staggered electric push rods 10 can avoid the mutual interference of the two side electric push rods 10 affecting the operation effect.

[0050] The above is only used to illustrate the technical scheme of the utility model, not to limit, other modifications or equivalent replacements of the technical scheme of the utility model made by the ordinary skilled in the art should be covered in the scope of the claims of the utility model.

Claims

1. A mine safety protection device, comprising a roof (1), and side plates (2) rotatably connected to the bottom of both sides of the roof (1), characterized in that: The material of the top plate (1) is alloy spring steel, both sides of the top plate (1) are rotationally connected with the connecting plates (3).

2. A protective device for mine safety according to claim 1, characterized in that: The top plate (1) is in a flat state under the action of its own elastic force when not subjected to external force.

3. A mine safety shield according to claim 2, characterised in that: The ends of the connecting plates (3) are fixedly connected with the butt rings (4), the butt rings (4) on the two connecting plates (3) are complementary to each other, the inside of the butt ring (4) is provided with an internal thread (5), and the butt ring (4) is screw-connected with a screw rod through the internal thread.

4. A mine safety shield according to claim 2, characterised in that: The width of the connecting plate (3) is equal to that of the top plate (1), and the length of the top plate (1) is π times of the length of the connecting plate (3).

5. A mine safety shield according to claim 4, characterised in that: A plurality of round holes (6) are formed in the connecting plate (3), a plurality of support columns (7) are assembled and connected to the connecting plate (3) through the round holes (6), the top portions of the support columns (7) on the same side are fixedly connected with support blocks (8), and the top portion of the support block (8) is adapted to the bottom arc surface shape of the arc-shaped top plate (1).

6. A protective device for mine safety according to claim 1, characterized in that: Torsion springs (9) are sleeved on the rotating shafts of the connecting plates (3), the torsion of the torsion spring (9) makes the connecting plate (3) rotate towards the top plate (1), and the torsion of the torsion spring (9) is greater than the rotation of the connecting plate (3).

7. A protective device for mine safety according to claim 1, characterized in that: The bottoms of the side plates (2) are fixedly connected with electric push rods (10) on both sides, and the output ends of the electric push rods (10) are fixedly connected with anchor rods (11).

8. A protective device for mine safety according to claim 7, characterised in that: The positions of the electric push rods (10) on both sides are staggered, and the lengths of the four electric push rods (10) are adjusted respectively.

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