A coal mine roadway support connection device

Abstract

This utility model discloses a coal mine roadway support connection device, including a base. A rotating groove is provided on one side of the base, and rotating blocks are provided on both sides of the inner wall of the rotating groove. A connecting mechanism is fixedly connected to one end of the base. A fixing frame is inserted into the upper end of the rotating blocks. Stabilizing blocks are fixedly connected to both sides of the inner walls of the front and rear ends of the fixing frame. A protective plate is detachably connected to the side of two stabilizing blocks that are close to each other. An adjustment mechanism is fixedly connected to one side of the fixing frame. The connecting mechanism allows the device to quickly and stably complete the splicing of several bases. The slot and the insert block cooperate, and a connecting bolt passes through screw hole one or screw hole two and extends into the insert block, achieving a reliable connection and fixation. The adjustment mechanism allows the device to be flexibly adjusted according to different roadway environments and support requirements. The slide rail and the sliding seat cooperate, and the position is fixed by a mounting bolt.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway support technology, specifically a coal mine roadway support connection device. Background Technology

[0002] When miners are working underground, the coal mining machine needs to use a starting support to support the top of the support structure in the coal mine roadway every time it advances a certain distance. This increases the support force of the support components on the roadway and plays an important role in the safety of coal miners.

[0003] Patent CN117386409A discloses a coal mine roadway support connection device, including an arc-shaped support frame, a first slide rod component and a second slide rod component. The first and second slide rod components are connected to the inner wall surface of the arc-shaped support frame, and the first and second slide rod components are arranged at opposite intervals at both ends of the arc-shaped support frame in the extending direction. The device also includes a first elastic component, a second elastic component, and a connecting block. One end of the first elastic component is connected to the first slide rod component, and the other end of the first elastic component is connected to the connecting block. One end of the second elastic component is connected to the second slide rod component, and the other end of the second elastic component is connected to the end of the connecting block away from the first elastic component. The first elastic component moves along the extending direction of the arc-shaped support frame on the first slide rod, and the second elastic component moves along the extending direction of the arc-shaped support frame on the second slide rod.

[0004] Currently, traditional coal mine roadway support connection devices typically employ multiple structural connections, but these connections lack support and protection. This results in weak bending and torsional resistance of the support devices. When the pressure increases to a certain extent, they are prone to damage such as torsion, bending, and deformation, leading to poor support effects and an inability to effectively maintain the stability of the roadway. Utility Model Content

[0005] The purpose of this utility model is to provide a coal mine roadway support connection device to solve the problem mentioned in the background art that the coal mine roadway support connection device usually adopts multiple structural connections, but the connection points are not supported and protected, resulting in weak bending and torsional resistance of the support device. When the pressure increases to a certain extent, it is easy to cause damage such as torsion, bending, and deformation, resulting in poor support effect and inability to maintain the stability of the roadway.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal mine roadway support connection device, including a base, a rotating groove provided on one side of the base, rotating blocks provided on both sides of the inner wall of the rotating groove, a connecting mechanism fixedly connected to one end of the base, a fixing frame inserted into the upper end of the rotating block, stabilizing blocks fixedly connected to both sides of the inner wall of the front and rear ends of the fixing frame, a protective plate detachably connected to the side of the two stabilizing blocks that are close to each other, and an adjustment mechanism fixedly connected to one side of the fixing frame.

[0007] The connecting mechanism includes a slot, the outer wall of which is connected through to one end of the base. A screw hole is provided on one side of the inner wall of the slot, and a screw hole is provided on the other side of the inner wall of the slot. A connecting bolt is threaded into the inner wall of the screw hole, and a plug is inserted into the inner wall of the slot.

[0008] Preferably, the outer wall of the rotating groove is embedded and connected to one side of the base, and the inner wall of the rotating groove is rotatably connected to both sides of the rotating block.

[0009] Preferably, one side of the inner wall of the slot is connected through the outer wall of the first screw hole, and the other side of the inner wall of the slot is connected through the outer wall of the second screw hole.

[0010] Preferably, one end of the connecting bolt extends through screw hole one or screw hole two into the interior of both sides of the insert block.

[0011] Preferably, the adjusting mechanism includes a slide rail, one side of which is fixedly connected to one side of a fixed frame, and the other side of which is provided with a mounting hole. The front and rear ends of the slide rail are provided with sliding grooves. A sliding seat is slidably connected to the outer wall of the slide rail. A mounting bolt is threadedly connected to the inner wall of one side of the sliding seat. A sleeve is rotatably connected to the inner wall of the sliding seat. A telescopic rod is hinged to one side of the lower end of the sleeve. A limit ring is fixedly connected to the outer wall of one end of the sleeve. A fixed shell is sleeved on the outer wall of the limit ring. A bidirectional motor is detachably connected to the middle of the inner wall of the fixed shell. The output shaft of the bidirectional motor is driven by a screw.

[0012] Preferably, one side of the slide rail is embedded and connected to the outer wall of the mounting hole, and the front and rear ends of the slide rail are embedded and connected to the outer wall of the slide groove.

[0013] Preferably, the inner wall of the sleeve is threadedly connected to the outer wall of the screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The connection mechanism allows the equipment to quickly and stably complete the splicing of several bases. The slot and the plug cooperate, and the connecting bolt passes through the screw hole one or screw hole two and extends into the plug, achieving a reliable connection and fixation. This effectively avoids the damage phenomena such as twisting, bending, and deformation that are prone to occur when the pressure increases in traditional connection methods, greatly enhancing the bending and torsional resistance of the support device. At the same time, this connection method is easy to operate, which can improve installation efficiency, reduce downhole operation time, and reduce safety hazards. In addition, the connection mechanism is also versatile and can adapt to the connection of support components of different specifications and shapes, improving the applicability and flexibility of the equipment.

[0016] 2. The adjustable mechanism allows the equipment to be flexibly adjusted according to different roadway environments and support requirements. The slide rail and sliding seat cooperate, and the mounting bolts fix the position, allowing the sleeve to move along the height of the slide rail. This adjusts the support position and angle of the telescopic rod. The threaded connection between the inner wall of the sleeve and the screw, combined with the drive of a bidirectional motor, enables automated telescopic adjustment of the telescopic rod, further improving the adaptability and stability of the support device. This adjustment method is not only easy to operate but also responds quickly to roadway deformation, adjusting the support force in a timely manner, effectively preventing roadway collapses and other safety accidents. Furthermore, the adjustable mechanism improves the durability and reliability of the equipment, ensuring long-term stability and safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0020] Figure 4 This is a side view of the three-dimensional structure of this utility model.

[0021] In the diagram: 1. Base; 2. Rotating groove; 3. Rotating block; 4. Connecting mechanism; 5. Fixing frame; 6. Stabilizing block; 7. Protective plate; 8. Adjusting mechanism; 41. Slot; 42. Screw hole one; 43. Screw hole two; 44. Connecting bolt; 45. Insert block; 81. Slide rail; 82. Mounting hole; 83. Slide groove; 84. Sliding seat; 85. Mounting bolt; 86. Sleeve; 87. Telescopic rod; 88. Limiting ring; 89. Fixing shell; 810. Bidirectional motor; 811. Screw. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a coal mine roadway support connection device, including a base 1, a rotating groove 2 on one side of the base 1, rotating blocks 3 on both sides of the inner wall of the rotating groove 2, a connecting mechanism 4 fixedly connected to one end of the base 1, a fixing frame 5 inserted into the upper end of the rotating block 3, and stabilizing blocks 6 fixedly connected to both sides of the inner wall of the front and rear ends of the fixing frame 5. A protective plate 7 is detachably connected to the side of the two stabilizing blocks 6 that are close to each other. An adjusting mechanism 8 is fixedly connected to one side of the fixing frame 5. The outer wall of the rotating groove 2 is embedded and connected to one side of the base 1, and the inner wall of the rotating groove 2 is rotatably connected to both sides of the rotating block 3.

[0024] A rotating groove 2 is machined on one side of the base 1. Rotatable rotating blocks 3 are symmetrically arranged on both sides of the inner wall of the rotating groove 2. A connecting mechanism 4 is firmly welded to the front end of the base 1. A fixing frame 5 is installed on the upper end of the rotating block 3 by plugging. High-strength stabilizing blocks 6 are welded to both sides of the inner wall of the front and rear ends of the fixing frame 5. A protective plate 7 is detachably connected between the two opposing stabilizing blocks 6 for easy maintenance and replacement. An adjustment mechanism 8 is also fixedly installed on the side of the fixing frame 5 to achieve fine adjustment of the support angle. The outer wall of the rotating groove 2 is embedded in one side of the base 1 to ensure structural stability. The inner wall of the rotating groove 2 is flexibly rotated and connected to both sides of the rotating block 3 by pins. The entire device is reasonably designed and the components are closely matched, which can effectively improve the safety and reliability of coal mine roadway support.

[0025] Please see Figure 2 In order to quickly connect and install multiple bases 1, the connecting mechanism 4 includes a slot 41. The outer wall of the slot 41 is connected through to one end of the base 1. A screw hole 42 is provided on one side of the inner wall of the slot 41, and a screw hole 43 is provided on the other side of the inner wall of the slot 41. A connecting bolt 44 is threaded to the inner wall of the screw hole 43. A plug block 45 is inserted into the inner wall of the slot 41. One side of the inner wall of the slot 41 is connected through to the outer wall of the screw hole 42, and the other side of the inner wall of the slot 41 is connected through to the outer wall of the screw hole 43. One end of the connecting bolt 44 passes through the screw hole 42 or the screw hole 43 and extends to the inside of both sides of the plug block 45.

[0026] To enable more efficient and convenient quick connection and installation of multiple bases 1, the outer wall of the slot 41 is tightly connected to one end of the base 1 through a through-hole, ensuring a stable and reliable structure. A standard screw hole 42 is provided on one side of the inner wall of the slot 41, and a matching screw hole 43 is provided on the corresponding side. The placement of these two screw holes ensures optimal force distribution. The inner wall of screw hole 43 is threaded, which can achieve a perfect threaded fit with the matching connecting bolt 44. The inner cavity of the slot 41 is provided with a specially designed insert 45 for precise insertion. One side of the inner wall of the slot 41 is connected to the outer wall of screw hole 42 through a through-hole, and the other side is also connected to the outer wall of screw hole 43 through a through-hole. The connecting bolt 44 can be inserted from screw hole 42 or screw hole 43 according to actual needs. Its tip can precisely extend to the inside of both sides of the insert 45, thereby achieving a firm connection from multiple directions and angles. This design not only simplifies the installation process but also greatly improves the stability and reliability of the connection.

[0027] Please see Figure 3 To quickly adjust the angle of the protective plate 7 on the base 1, the adjustment mechanism 8 includes a slide rail 81. One side of the slide rail 81 is fixedly connected to one side of the fixing frame 5, and the other side of the slide rail 81 is provided with a mounting hole 82. The front and rear ends of the slide rail 81 are provided with sliding grooves 83. A sliding seat 84 is slidably connected to the outer wall of the slide rail 81. A mounting bolt 85 is threadedly connected to the inner wall of one side of the sliding seat 84. A sleeve 86 is rotatably connected to the inner wall of the sliding seat 84. The lower end of the sleeve 86... A telescopic rod 87 is hinged to one side, a limiting ring 88 is fixed to the outer wall of one end of the sleeve 86, a fixed shell 89 is sleeved on the outer wall of the limiting ring 88, a bidirectional motor 810 is detachably connected to the middle of the inner wall of the fixed shell 89, a screw 811 is driven to the output shaft of the bidirectional motor 810, one side of the slide rail 81 is embedded in the outer wall of the mounting hole 82, the front and rear ends of the slide rail 81 are embedded in the outer wall of the slide groove 83, and the inner wall of the sleeve 86 is threaded to the outer wall of the screw 811.

[0028] To allow for quick and convenient precise angle adjustment of the protective plate 7 on the base 1, one side of the slide rail 81 is securely connected to one side of the fixing frame 5 by welding or bolting. The other side of the slide rail 81 has multiple evenly distributed mounting holes 82 for possible subsequent expansion installations. Both the front and rear ends of the slide rail 81 are machined with grooves 83, which have good wear resistance. On the outer wall of the slide rail 81, a sliding seat 84 is slidably connected to it via a guide rail, ensuring smooth and stable movement. An internal threaded hole is provided in the middle of one side of the sliding seat 84 for threaded connection of a mounting bolt 85. The mounting bolt 85 extends through the sliding seat 84 into the mounting hole 82 on one side of the slide rail 81. The inner wall of the sliding seat 84... A sleeve 86 is rotatably connected via a pin shaft. The lower end of the sleeve 86 is connected to the telescopic rod 87 via a hinge. A limit ring 88 is welded to the outer wall of one end of the sleeve 86. A fixing shell 89 is fitted over the limit ring 88. A detachable bidirectional motor 810 is located in the middle of the inner wall of the fixing shell 89. Its output shaft is connected to the screw 811 via a coupling. One side of the slide rail 81 is embedded in the outer wall of the mounting hole 82. The front and rear slide grooves 83 are also embedded to ensure structural stability. The inner wall of the sleeve 86 is machined with an internal thread that matches the screw 811. The two form a threaded transmission pair. The entire adjustment mechanism 8 is compact and easy to operate, and can meet the needs of quick and precise angle adjustment of the protective plate 7.

[0029] Working principle: First, by placing the base 1 at the location requiring support in the coal mine roadway, the initial angle of the fixing frame 5 is adjusted using the rotational cooperation of the rotating groove 2 and the rotating block 3. Next, multiple bases 1 are connected through the connecting mechanism 4. The insert block 45 is inserted into the slot 41. Depending on the actual connection situation, the connecting bolt 44 is screwed in through the screw hole 42 or the screw hole 43, so that one end extends into the interior of both sides of the insert block 45, completing the stable connection between the bases 1. Afterwards, according to the actual needs of roadway support, the adjusting mechanism 8 is operated to start the bidirectional motor 810. The bidirectional motor 810 drives the screw... When rod 811 rotates, the inner wall of sleeve 86 is threadedly connected to the outer wall of screw 811. The rotation of screw 811 will drive sleeve 86 to rotate on sliding seat 84. At the same time, sliding seat 84 can slide on slide rail 81. Through the extension and retraction of telescopic rod 87 and the rotation of sleeve 86, the angle of protective plate 7 can be precisely adjusted, so that protective plate 7 is at the optimal support angle. During the entire use, the cooperation between stabilizing block 6 and protective plate 7 can effectively enhance the bending and torsional resistance of the support device, prevent damage such as torsion, bending, and deformation, better maintain the stability of the roadway, and protect the life safety of coal mine workers.

[0030] Then, through the setting of the bidirectional motor 810, the direction and speed of the screw 811 can be automatically adjusted according to the preset, ensuring the stability of the movement of the sleeve 86. Under extreme geological conditions, the hydraulic buffer built into the telescopic rod 87 can absorb the instantaneous impact force. Combined with the double protection structure formed by the limit ring 88 and the fixed shell 89, it effectively prevents the motor from being damaged by overload. The entire adjustment process achieves the positioning function of the protective plate 7 through the coordinated movement of the sliding seat 84 and the slide rail 81, which not only ensures the tight fit between the protective plate 7 and the tunnel wall, but also avoids structural failure caused by local stress concentration. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal mine roadway support connection device, comprising a base (1), characterized in that: A rotating groove (2) is provided on one side of the base (1), and rotating blocks (3) are provided on both sides of the inner wall of the rotating groove (2). A connecting mechanism (4) is fixedly connected to one end of the base (1). A fixing frame (5) is inserted into the upper end of the rotating block (3). A stabilizing block (6) is fixedly connected to both sides of the inner wall of the front and rear ends of the fixing frame (5). A protective plate (7) is detachably connected to the side of the two stabilizing blocks (6) that are close to each other. An adjustment mechanism (8) is fixedly connected to one side of the fixing frame (5). The connecting mechanism (4) includes a slot (41), the outer wall of the slot (41) is connected through to one end of the base (1), a screw hole (42) is provided on one side of the inner wall of the slot (41), a screw hole (43) is provided on the other side of the inner wall of the slot (41), a connecting bolt (44) is threaded to the inner wall of the screw hole (43), and a plug (45) is inserted into the inner wall of the slot (41).

2. The coal mine roadway support connection device according to claim 1, characterized in that: The outer wall of the rotating groove (2) is embedded and connected to one side of the base (1), and the inner wall of the rotating groove (2) is rotatably connected to both sides of the rotating block (3).

3. The coal mine roadway support connection device according to claim 1, characterized in that: One side of the inner wall of the slot (41) is connected through the outer wall of the screw hole one (42), and the other side of the inner wall of the slot (41) is connected through the outer wall of the screw hole two (43).

4. The coal mine roadway support connection device according to claim 3, characterized in that: One end of the connecting bolt (44) extends through screw hole one (42) or screw hole two (43) to the inside of both sides of the insert (45).

5. The coal mine roadway support connection device according to claim 1, characterized in that: The adjustment mechanism (8) includes a slide rail (81), one side of which is fixedly connected to one side of the fixed frame (5), and the other side of which is provided with a mounting hole (82). The front and rear ends of the slide rail (81) are provided with sliding grooves (83). The outer side wall of the slide rail (81) is slidably connected to a sliding seat (84). The inner wall of the middle part of one side of the sliding seat (84) is threadedly connected to a mounting bolt (85). The inner side wall of the sliding seat (84) is rotatably connected to a sleeve (86). The lower end of the sleeve (86) is hinged to a telescopic rod (87). One end of the outer wall of the sleeve (86) is fixedly connected to a limiting ring (88). The outer wall of the limiting ring (88) is sleeved with a fixed shell (89). The middle part of the inner wall of the fixed shell (89) is detachably connected to a bidirectional motor (810). The output shaft of the bidirectional motor (810) is drivenly connected to a screw (811).

6. The coal mine roadway support connection device according to claim 5, characterized in that: One side of the slide rail (81) is embedded and connected to the outer wall of the mounting hole (82), and the front and rear ends of the slide rail (81) are embedded and connected to the outer wall of the slide groove (83).

7. A coal mine roadway support connection device according to claim 5, characterized in that: The inner wall of the sleeve (86) is threadedly connected to the outer wall of the screw (811).

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