A mine pit wall fixing device

Abstract

The utility model relates to the technical field of mine support, and disclose a mine pit wall fixing device, including a plurality of arched support frame, a plurality of arched support frame between all be equipped with the connecting frame, the quantity of connecting frame is a plurality, a plurality of connecting frame distributes in the two sides of a plurality of arched support frame inner wall, one side of connecting frame is fixedly connected with two locating blocks symmetrically, the side of locating block is equipped with the locating mouth. The utility model through a plurality of arched support frame between setting connecting frame, and utilize the plug -in cooperation of locating block and splicing interface, and the plug -in fixing of L shape limit rod and locating mouth, realized the stable connection between two arched support frame, this kind of connection mode simplified the installation process, reduced the consumption of manpower and material resources, also improved the overall stability of mine pit wall fixing device, and the subsequent also can quickly remove the connecting frame between two arched support frame.

Description

Technical Field

[0001] This utility model relates to the field of mine pit support technology, and more specifically to a mine pit wall fixing device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil layer is typically stripped away to extract the coal; this is called an open-pit coal mine. The vast majority of coal mines in my country are underground mines. To prevent loose materials such as coal and rock from sliding down the mine walls, the mine walls are typically lined or supported internally to enhance their stability and safety. These lining or support devices are commonly referred to as internal wall fixing devices or mine wall fixing devices.

[0003] In traditional mine wall fixing operations, multiple arched support frames are usually connected together to form a stable whole. However, when connecting multiple arched support frames, multiple connectors are usually used and fixed with a large number of bolts. This fixing method is not only cumbersome to install and disassemble, but also takes a lot of time and needs to be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mine pit wall fixing device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a mine pit wall fixing device, including multiple arched support frames, with connecting frames provided between each of the multiple arched support frames. The connecting frames are distributed on both sides of the inner wall of the multiple arched support frames. Two positioning blocks are symmetrically fixedly connected to one side of each connecting frame. Positioning openings are provided on the side of each positioning block. Multiple splicing interfaces adapted to the positioning blocks are provided on the inner wall of each of the multiple arched support frames. The outer wall of each positioning block is inserted into the splicing interface. Multiple through-holes are provided on the side of each arched support frame, communicating with the interior of the splicing interface. Two L-shaped limiting rods are symmetrically provided on one side of each connecting frame. One end of each L-shaped limiting rod is adapted to the interior of the positioning opening, and the other end of the L-shaped limiting rod is inserted into the interior of the positioning opening through the through-hole.

[0006] Furthermore, the connecting frame is provided with a bidirectional screw. The right end of the bidirectional screw is rotatably mounted on the right side inside the connecting frame via a bearing. The outer wall of the bidirectional screw is symmetrically threaded with two driving blocks. The outer walls of the two driving blocks are slidably connected inside the connecting frame. One side of the two driving blocks is fixedly connected to the other end of two L-shaped limiting rods.

[0007] Furthermore, the left end of the bidirectional screw extends to the outside of the left end of the connecting frame and is fixedly connected to a connecting plate. A throttle is provided on the left side of the connecting plate, and insert rods are slidably sleeved on both sides inside the connecting plate. The left side of the insert rod is fixedly connected to the right side of the throttle. Multiple limiting sockets are provided on the left end of the connecting frame, and the multiple limiting sockets are distributed in a ring on the left end of the connecting frame. The right end of the insert rod is inserted into the interior of any one of the limiting sockets.

[0008] Furthermore, a stop block is fixedly sleeved on the right side of the outer wall of the insertion rod, and the right side of the stop block overlaps the left end of the connecting frame. A spring and a telescopic protective sleeve are movably sleeved on the outer wall of the insertion rod. The spring is located inside the telescopic protective sleeve. The right ends of both the spring and the telescopic protective sleeve are fixedly installed on the left side of the stop block, and the left ends of both the spring and the telescopic protective sleeve are fixedly connected to the right side of the connecting plate.

[0009] Furthermore, each of the arched support frames is fixedly connected to a mounting base at its bottom, and the mounting base has an installation opening.

[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model achieves a stable connection between two arched support frames by setting a connecting frame between multiple arched support frames and using the plug-in cooperation of positioning blocks and splicing interfaces, as well as the plug-in fixation of L-shaped limiting rods and positioning ports. This connection method simplifies the installation process, reduces the consumption of manpower and material resources, improves the overall stability of the mine pit wall fixing device, and allows for quick dismantling of the connecting frame between the two arched support frames.

[0011] 2. This utility model allows one end of the insert rod to be moved out of the limiting socket by pulling the handle and the insert rod. At this time, the connecting plate and the bidirectional screw can be rotated by the handle, which can drive the drive block and the L-shaped limiting rod to move. One end of the L-shaped limiting rod can be inserted into the positioning port on the side of the positioning block through the through hole, so that a stable limiting structure is formed between the L-shaped limiting rod and the positioning block, which limits and fixes the two arched support frames. By releasing the handle, the elasticity of the spring can drive one end of the insert rod to be inserted into the interior of any limiting socket again, which facilitates the fixing of the handle, the connecting plate and the bidirectional screw, prevents the bidirectional screw from rotating accidentally, and enhances the stability of the connection between the two arched support frames. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a cross-sectional schematic diagram of the arched support frame and connecting frame structure of this utility model.

[0014] Figure 3 This is a cross-sectional view of the connecting frame, throttle, stop block, telescopic protective sleeve, and connecting disc of this utility model.

[0015] Figure 4 This is an enlarged schematic diagram of structure A of this utility model.

[0016] Figure 5 This is a schematic diagram of the connecting frame and limiting socket structure of this utility model.

[0017] Figure 6 This is a partial sectional view of the arched support frame of this utility model.

[0018] The attached diagram is labeled as follows: 1. Arch support frame; 2. Mounting base; 3. Connecting frame; 31. Rotary handle; 32. Insert rod; 33. Limiting socket; 34. Stop block; 35. Spring; 36. Telescopic protective sleeve; 37. Connecting plate; 38. Bidirectional screw; 39. Drive block; 391. L-shaped limiting rod; 4. Positioning block; 41. Positioning port; 5. Splicing interface; 6. Through port. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The mine pit wall fixing device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: like Figure 1-6As shown, a mine pit wall fixing device includes multiple arched support frames 1. Each arched support frame 1 has a mounting base 2 fixedly connected to its bottom. The mounting base 2 has an installation opening. Connecting frames 3 are provided between the multiple arched support frames 1. The connecting frames 3 are distributed on both sides of the inner wall of the multiple arched support frames 1. Two positioning blocks 4 are symmetrically fixedly connected to one side of each connecting frame 3. Positioning holes 41 are opened on the side of each positioning block 4. Multiple splicing interfaces 5 are provided on the inner wall of each arched support frame 1 to fit the positioning blocks 4. The outer wall of each positioning block 4 is inserted into the splicing interface 5. Multiple through holes 6 are provided on the side of each arched support frame 1, communicating with the interior of the splicing interface 5. One side of each connecting frame 3... Two L-shaped limiting rods 391 are symmetrically arranged on both sides. One end of the L-shaped limiting rod 391 is adapted to the inside of the positioning port 41. The other end of the L-shaped limiting rod 391 is inserted into the inside of the positioning port 41 through the through port 6. By inserting the two positioning blocks 4 on one side of the connecting frame 3 into the splicing interface 5 of the inner wall of the two adjacent arched support frames 1, it is convenient to initially limit the two arched support frames 1. By inserting one end of the L-shaped limiting rod 391 into the positioning port 41 on the side of the positioning block 4 through the through port 6, the L-shaped limiting rod 391 and the positioning block 4 are combined together to further stabilize and limit the two arched support frames 1, ensuring that there will be no relative movement between the two arched support frames 1, and improving the overall stability of the mine pit wall fixing device. The connecting frame 3 has a bidirectional screw 38 inside. The right end of the bidirectional screw 38 is rotatably mounted on the right side inside the connecting frame 3 via a bearing. The outer wall of the bidirectional screw 38 is symmetrically threaded with two drive blocks 39. The outer walls of the two drive blocks 39 are slidably connected inside the connecting frame 3. One side of the two drive blocks 39 is fixedly connected to the other end of two L-shaped limiting rods 391. The left end of the bidirectional screw 38 extends to the outside of the left end of the connecting frame 3 and is fixedly connected to a connecting plate 37. A handle 31 is provided on the left side of the connecting plate 37. Insert rods 32 are slidably sleeved on both sides inside the connecting plate 37. The left side of the insert rods 32 is fixedly connected to the right side of the handle 31. Multiple limiting slots 33 are opened on the left end of the connecting frame 3, and the multiple limiting slots 33 are distributed in a ring on the left end of the connecting frame 3. The right end of the insertion rod 32 is inserted into any of the limiting sockets 33. A stop block 34 is fixedly sleeved on the right side of the outer wall of the insertion rod 32, and the right side of the stop block 34 overlaps the left end of the connecting frame 3. A spring 35 and a telescopic protective sleeve 36 are movably sleeved on the outer wall of the insertion rod 32. The spring 35 is located inside the telescopic protective sleeve 36. The right ends of both the spring 35 and the telescopic protective sleeve 36 are fixedly installed on the left side of the stop block 34, and the left ends of both the spring 35 and the telescopic protective sleeve 36 are fixedly connected to the right side of the connecting plate 37. The operator pulls the handle 31, causing the handle 31 to move the insertion rod 32 to the left. At this time, the right end of the insertion rod 32 moves out from inside the limiting socket 33, releasing the fixing state of the connecting plate 37 and the bidirectional screw 38. Then, the operator can rotate the handle 31 to move the insertion rod 32 to the left. 1. The connecting plate 37 and the double-acting screw 38 are rotated. During the rotation of the double-acting screw 38, the two driving blocks 39 will move relative to each other along the outer wall of the double-acting screw 38. Since one side of the two driving blocks 39 is fixedly connected to the other end of the two L-shaped limiting rods 391, the two driving blocks 39 will move the two L-shaped limiting rods 391 during the movement. When one end of the two L-shaped limiting rods 391 is inserted into the positioning port 41 on the side of the positioning block 4 through the through port 6, the rotation of the handle 31 is stopped. At this time, a stable limiting structure is formed between the L-shaped limiting rods 391 and the positioning block 4, which limits and fixes the two arched support frames 1. Then the handle 31 is released. Since the outer wall of the insertion rod 32 is movably sleeved with a spring 35, Under the elastic action of spring 35, spring 35 will drive the insertion rod 32 to move to the right, so that the right end of the insertion rod 32 can be inserted into any of the limiting sockets 33 again, fixing the handle 31, connecting plate 37 and double-acting screw 38, preventing the double-acting screw 38 from rotating unexpectedly, thereby enhancing the stability of the connection between the two arched support frames 1. When it is necessary to disassemble the two arched support frames 1, simply pull the handle 31 again to move the right end of the insertion rod 32 out of the limiting socket 33, then rotate the handle 31 in the opposite direction to move one end of the two L-shaped limiting rods 391 out of the positioning port 41, and finally pull the positioning block 4 out of the splicing interface 5 to complete the disassembly of the two arched support frames 1. The whole operation process is simple and convenient.This significantly improves the efficiency of installing and dismantling the mine pit wall fixing devices.

[0021] In summary, as Figure 1-6 As shown, this mine pit wall fixing device allows workers to first place multiple arched support frames 1 at designated positions on the mine pit wall. Using the mounting ports on the mounting base 2, the arched support frames 1 are initially fixed to the pit wall using bolts and other fasteners. Next, two positioning blocks 4 on one side of the connecting frame 3 are inserted into the corresponding splicing interfaces 5 on the inner walls of two adjacent arched support frames 1. At this point, the two arched support frames 1 are initially positioned. Then, the worker pulls the handle 31, causing the handle 31 to move the insert rod 32 to the left. The right end of the insert rod 32 moves out of the limiting insertion port 33, releasing the fixing of the connecting plate 37 and the bidirectional screw 38. Then, the handle 31 is rotated, causing the connecting plate 37 and the bidirectional screw 38 to rotate. The bidirectional screw 38 drives two driving blocks 39 to move relative to each other, thereby moving two L-shaped limiting blocks... When the L-shaped limiting rod 391 moves, and one end of the L-shaped limiting rod 391 is inserted into the positioning port 41 on the side of the positioning block 4 through the through port 6, the rotation of the handle 31 is stopped. At this time, the L-shaped limiting rod 391 and the positioning block 4 form a stable limiting structure, which further stabilizes and limits the two arched support frames 1. Finally, the handle 31 is released, and under the elastic action of the spring 35, the spring 35 drives the insertion rod 32 to move to the right, so that the right end of the insertion rod 32 is inserted into any one of the limiting insertion ports 33 again, which fixes the handle 31, the connecting plate 37 and the double-direction screw 38, preventing the double-direction screw 38 from rotating accidentally, and ensuring that the connection between the two arched support frames 1 is stable. In this way, the connection between multiple arched support frames 1 is completed in sequence to form a stable whole mine pit wall fixing device, which enhances the stability and safety of the mine pit wall support.

[0022] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, dust covers are provided on the outside of threaded rods or lead screws.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mine pit wall fixing device, comprising multiple arched support frames (1), characterized in that, A connecting frame (3) is provided between each of the multiple arched support frames (1). There are multiple connecting frames (3), which are distributed on both sides of the inner wall of the multiple arched support frames (1). Two positioning blocks (4) are symmetrically fixedly connected to one side of each connecting frame (3). The side of each positioning block (4) is provided with a positioning opening (41). The inner wall of each of the multiple arched support frames (1) is provided with a splicing interface (5) that matches the positioning block (4). There are multiple splicing interfaces (5). The outer wall of the positioning block (4) is inserted into the interior of the splicing interface (5). The side of the arched support frame (1) is provided with multiple through holes (6), which are connected to the interior of the splicing interface (5). Two L-shaped limiting rods (391) are symmetrically provided on one side of the connecting frame (3). One end of the L-shaped limiting rod (391) is adapted to the interior of the positioning port (41), and one end of the L-shaped limiting rod (391) is inserted into the interior of the positioning port (41) through the through hole (6).

2. The mine pit wall fixing device according to claim 1, characterized in that: The connecting frame (3) is provided with a bidirectional screw (38) inside. The right end of the bidirectional screw (38) is rotatably installed on the right side inside the connecting frame (3) through a bearing. The outer wall of the bidirectional screw (38) is symmetrically threaded with two driving blocks (39). The outer walls of the two driving blocks (39) are slidably connected inside the connecting frame (3). One side of the two driving blocks (39) is fixedly connected to the other end of two L-shaped limiting rods (391).

3. The mine pit wall fixing device according to claim 2, characterized in that: The left end of the bidirectional screw (38) extends to the outside of the left end of the connecting frame (3) and is fixedly connected to the connecting plate (37). The left side of the connecting plate (37) is provided with a throttle (31). The two sides inside the connecting plate (37) are slidably sleeved with insert rods (32). The left side of the insert rod (32) is fixedly connected to the right side of the throttle (31). The left end of the connecting frame (3) is provided with multiple limiting sockets (33). The multiple limiting sockets (33) are distributed in a ring on the left end of the connecting frame (3). The right end of the insert rod (32) is inserted into the inside of any one of the limiting sockets (33).

4. A mine pit wall fixing device according to claim 3, characterized in that: A stop (34) is fixedly sleeved on the right side of the outer wall of the insert rod (32). The right side of the stop (34) overlaps the left end of the connecting frame (3). A spring (35) and a telescopic protective sleeve (36) are movably sleeved on the outer wall of the insert rod (32). The spring (35) is located inside the telescopic protective sleeve (36). The right ends of the spring (35) and the telescopic protective sleeve (36) are both fixedly installed on the left side of the stop (34). The left ends of the spring (35) and the telescopic protective sleeve (36) are both fixedly connected to the right side of the connecting plate (37).

5. A mine pit wall fixing device according to claim 1, characterized in that: Each of the arched support frames (1) has a mounting base (2) fixedly connected to its bottom, and the mounting base (2) has an installation opening.

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