Protective device for coal mining

Abstract

The utility model belongs to the technical field of coal mining protection, and particularly discloses a protective device for coal mining, which comprises a supporting mechanism, a top plate is mounted at the bottom of the supporting mechanism, the supporting mechanism comprises a fixing seat, and a plurality of connecting pieces are welded at equal intervals from left to right at the top end of the fixing seat close to the back surface. First supporting columns are symmetrically installed at the bottom, close to the left side and the right side, of the fixing base, connecting assemblies are installed on the front faces, close to the middles, of the first supporting columns, second supporting columns are installed on the front faces of the connecting assemblies, and sliding grooves are symmetrically formed in the positions, close to the top ends and the bottoms, in the second supporting columns. The top end of the mine tunnel can be effectively and temporarily supported and protected through cooperation of the first supporting column, the second supporting column and the supporting rod with the top plate, and compared with a traditional protection device, the mine tunnel top end protection device can be rapidly unfolded and supported, use convenience is greatly improved, and safety guarantee for workers is effectively improved.

Description

Technical Field

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

[0002] Coal mining refers to the process of extracting coal underground or on the surface. It is one of the core links in the coal mining industry. It brings coal from underground to the surface for subsequent processing and utilization, providing important support for energy supply and industrial production. During the coal mining process, especially in the mine tunnels, it is necessary to support and protect the tunnels to prevent falling rocks from injuring workers.

[0003] When workers are mining coal, they often move slowly in line with the progress of mining. However, the protective devices commonly used in coal mining are large and heavy, and are very time-consuming to install. They are not convenient to quickly set up temporary protection in line with the progress of mining, which greatly increases the safety hazards in mining work. Therefore, we propose a protective device for coal mining. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the fact that current protective devices are very time-consuming to install and are not convenient for quickly setting up temporary protection in line with the mining progress.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for coal mining, comprising a support mechanism, with a top plate installed at the bottom of the support mechanism; the support mechanism includes a fixed base, with several connectors welded equidistantly from left to right at the top of the fixed base near the back side; a first pillar is symmetrically installed near the left and right sides at the bottom of the fixed base; a connecting component is installed near the middle of the front of the first pillar; a second pillar is installed on the front of the connecting component; a sliding groove is symmetrically opened near the top and bottom of the second pillar; a slider is slidably connected inside the sliding groove; and a fixing ring is symmetrically fitted around the second pillar at the top and bottom of the slider.

[0006] Optionally, a groove is provided at the top of the top plate near the back, and the connector is rotatably connected to the groove. Limiting grooves are symmetrically provided on the left and right sides of the bottom of the top plate near the front. A limiting block is installed at the top of the second support column, and the limiting block abuts against the limiting groove. The rotatable connection between the groove and the connector allows the top plate to be rotated to the back and folded after use, thereby reducing the size of the equipment and improving convenience. The abutment between the limiting groove and the limiting block makes the connection between the second support column and the top plate more stable, improving operational stability, and also facilitates the separation of the top plate from the second support column, improving ease of use.

[0007] Optionally, the top of the limiting block is a smooth spherical structure made of high-manganese steel. The spherical structure facilitates the sliding of the limiting block within the limiting groove, improving ease of equipment installation. The high-manganese steel material has extremely high hardness, enhancing the wear resistance of the limiting block and extending its service life.

[0008] Optionally, both the first and second supports are threadedly connected to adjustable feet at their bottoms. By rotating the adjustable feet, the support of the first and second supports can be adjusted according to the flatness of the ground inside the mine tunnel, thereby ensuring the flatness of the roof and improving the protection effect.

[0009] Optionally, the connecting assembly includes a rotating shaft, which is fixedly connected to the first support column. Support rods are rotatably connected to the top and bottom of the rotating shaft. The end of the support rod furthest from the rotating shaft is fitted around the slider and fixedly connected by bolts. By fixing the support rod to the slider with bolts, a triangular support can be formed between the first and second support columns, enhancing compressive strength and improving the overall protective effect of the equipment.

[0010] Optionally, the second support column is threaded on its outer perimeter, and the retaining ring is threadedly connected to the second support column. The retaining ring also has several anti-slip stripes engraved around its outer perimeter. By rotating the retaining ring, its top and bottom can be brought into contact with the slider, thereby clamping and fixing the slider, stabilizing the support rod's support effect, and improving the overall stability of the equipment.

[0011] Optionally, a crossbar is welded between the two second supports. The crossbar provides support between the two second supports, preventing them from shifting inward or outward during use and improving stability. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of a protective device for coal mining provided by this utility model;

[0013] Figure 2 A schematic diagram of the overall front structure of a protective device for coal mining provided by this utility model;

[0014] Figure 3 A side view of the overall structure of a protective device for coal mining provided by this utility model;

[0015] Figure 4 This invention provides an anatomical diagram of the top structure of the second pillar of a protective device for coal mining. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments:

[0017] The reference numerals in the accompanying drawings include: 1. Support mechanism; 101. Fixed base; 102. Connector; 103. First pillar; 104. Connecting assembly; 1041. Rotating shaft; 1042. Support rod; 105. Second pillar; 1051. Limiting block; 1052. Crossbar; 106. Slide groove; 107. Sliding block; 108. Fixing ring; 109. Adjustable foot; 2. Top plate; 201. Groove; 202. Limiting groove.

[0018] Example

[0019] like Figure 1-4 As shown, this utility model provides a protective device for coal mining, including a support mechanism 1, with a top plate 2 installed at the bottom of the support mechanism 1; the support mechanism 1 includes a fixed base 101, with several connecting parts 102 welded equidistantly from left to right near the back of the top of the fixed base 101; first pillars 103 are symmetrically installed near the left and right sides of the bottom of the fixed base 101; a connecting component 104 is installed near the middle of the front of the first pillar 103; a second pillar 105 is installed on the front of the connecting component 104; slid grooves 106 are symmetrically formed near the top and bottom of the second pillar 105; sliders 107 are slidably connected inside the slid grooves 106; and fixing rings 108 are symmetrically fitted around the second pillar 105 at the top and bottom of the sliders 107; a groove 201 is formed near the back of the top of the top of the top plate 2, and the connecting parts 102 are rotatably connected to the groove 201; the left side of the bottom of the top plate 2... Symmetrical limiting grooves 202 are provided on both sides near the front. A limiting block 1051 is installed at the top of the second pillar 105, and the limiting block 1051 abuts against the limiting groove 202. The top of the limiting block 1051 is a smooth spherical structure and is made of high manganese steel. Adjustable feet 109 are threaded to the bottom of both the first pillar 103 and the second pillar 105. The connecting component 104 includes a rotating shaft 1041, which is fixedly connected to the first pillar 103. A support rod 1042 is rotatably connected to the top and bottom of the rotating shaft 1041. The end of the support rod 1042 away from the rotating shaft 1041 is sleeved on the periphery of the slider 107 and fixedly connected by bolts. The periphery of the second pillar 105 is engraved with threads. A fixing ring 108 is threaded to the second pillar 105, and several anti-slip stripes are engraved around the periphery of the fixing ring 108. A crossbar 1052 is welded between the second pillars 105.

[0020] The working process of this utility model:

[0021] When quickly assembling and using a protective device for coal mining, first rotate the top plate 2 forward so that its bottom is in contact with the top of the fixed base 101. Rotate the adjusting foot 109 so that the first support column 103 moves the top plate 2 upward and aligns the top of the top plate 2 with the top of the mine tunnel. Then, the limiting block 1051 at the top of the second support column 105 abuts against the inside of the limiting groove 202. Rotate the adjusting foot 109 so that the second support column 105 supports the top plate 2. Rotate the support rod 1042 via the rotating shaft 1041 so that it fits around the slider 107 and is secured with bolts. After fixing both supports, slide the slider 107 according to the distance between the first support 103 and the second support 105, so that the support rod 1042 is tilted and supported between the first support 103 and the second support 105, achieving the effect of triangular support. Finally, rotate the fixing rings 108 at the top and bottom of the slider 107 in sequence to make them fit tightly against the slider 107, completing the entire assembly process. Compared with traditional protective devices, this equipment can be quickly deployed and supported, and has a simple structure and small size, which greatly improves the ease of use and effectively improves the safety of workers.

[0022] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A protective device for coal mining, characterized in that, The system includes a support mechanism with a top plate installed at its bottom. The support mechanism includes a fixed base with several connectors welded at equal intervals from left to right near the back of the top of the fixed base. A first pillar is symmetrically installed near the left and right sides of the bottom of the fixed base. A connecting component is installed near the center of the front of the first pillar. A second pillar is installed on the front of the connecting component. A sliding groove is symmetrically opened near the top and bottom of the second pillar. A slider is slidably connected inside the sliding groove. A fixing ring is symmetrically fitted around the second pillar at the top and bottom of the slider.

2. A protective device for coal mining according to claim 1, characterized in that, A groove is provided at the top of the top plate near the back, and the connector is rotatably connected to the groove. Limiting grooves are symmetrically provided on the left and right sides of the bottom of the top plate near the front. A limiting block is installed at the top of the second column, and the limiting block abuts against the limiting groove.

3. A protective device for coal mining according to claim 2, characterized in that, The top of the limiting block is a smooth spherical structure made of high manganese steel.

4. A protective device for coal mining according to claim 3, characterized in that, The bottom of both the first and second pillars is threaded with adjustable feet.

5. A protective device for coal mining according to claim 4, characterized in that, The connecting assembly includes a rotating shaft, which is fixedly connected to the first support column. Support rods are rotatably connected to the top and bottom of the rotating shaft. The end of the support rod away from the rotating shaft is sleeved on the outer periphery of the slider and fixedly connected by bolts.

6. A protective device for coal mining according to claim 5, characterized in that, The second support has threads engraved on its outer perimeter. The retaining ring is threadedly connected to the second support, and the outer perimeter of the retaining ring is engraved with several anti-slip stripes.

7. A protective device for coal mining according to claim 6, characterized in that, A crossbar is welded between the second pillars.

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