Fastening device for roadway support connection

Abstract

The utility model provides a fastening device for roadway support connection, belongs to the technical field of roadway supports, and solves the problems that the widths and shapes of different roadways are possibly different, and the sizes of U-shaped steel are also different, so that the fastening device cannot meet the requirements of different field conditions, and the use cost is high. And unnecessary waste is caused. A fastening device for roadway support connection comprises a first fixing clamp, a second fixing clamp is arranged on one side of the first fixing clamp in a matched mode, a third fixing clamp is arranged at the top of the first fixing clamp, and a fourth fixing clamp is arranged on the side, close to the second fixing clamp, of the third fixing clamp. And connecting mechanisms for connecting the second fixing clamp with the first fixing clamp and connecting the third fixing clamp with the fourth fixing clamp are arranged on one side of the two first fixing lugs and one side of the second fixing lug. According to the utility model, through the arrangement of the first fixing clamp, the second fixing clamp, the third fixing clamp and the fourth fixing clamp, different construction requirements can be met.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel support technology, and relates to fastening devices, particularly a fastening device for tunnel support connection. Background Technology

[0002] Fastening devices for roadway support connections are crucial components of mine roadway support systems, primarily ensuring the stability and safety of the U-shaped steel support structure. These devices are typically made of high-strength metal materials, capable of withstanding significant axial and lateral loads to effectively resist pressure variations within and outside the roadway. Their design simplifies installation and dismantling processes, improving construction efficiency while also facilitating routine maintenance. Therefore, fastening devices for roadway support connections play an indispensable role in modern mining engineering.

[0003] However, the lateral dimensions of some existing roadway support fastening devices are usually not adjustable. Because the width and shape of different roadways may vary, the dimensions of the U-shaped steel will also vary, which means that the fastening devices cannot meet the needs of different site conditions, resulting in unnecessary waste. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fastening device for roadway support connections. The technical problem this utility model aims to solve is that different roadways may have different widths and shapes, resulting in variations in the dimensions of U-shaped steel. Consequently, the fastening device may not meet the needs of different site conditions, leading to unnecessary waste.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fastening device for roadway support connection includes a first fixing clamp, a second fixing clamp fitted to one side of the first fixing clamp, a third fixing clamp disposed on the top of the first fixing clamp, and a fourth fixing clamp disposed on the side of the third fixing clamp near the second fixing clamp. The first, second, third, and fourth fixing clamps are arranged in a mutually cooperating manner. A first fixing lug is fixedly connected to one end of the first and third fixing clamps, and a second fixing lug is fixedly connected to the end of the second and fourth fixing clamps near the first fixing lug. A connecting mechanism for connecting the second fixing clamp to the first fixing clamp and the third fixing clamp to the fourth fixing clamp is provided on one side of each of the first and second fixing lugs. The arrangement of the first and second fixing clamps and the third and fourth fixing clamps ensures that different construction requirements can be met.

[0007] As a further embodiment of this utility model, the connecting mechanism includes a locking groove, which is opened on one side of the first fixing ear. A bolt is slidably connected inside the locking groove, and the bolt and the locking groove are configured to cooperate with each other. A nut is fitted on the surface of the bolt near the second fixing ear. A plurality of locking holes are opened on the surface of the nut near the second fixing ear. The plurality of locking holes are provided with a locking mechanism for locking the nut. The fixing clips can be connected by the bolt.

[0008] As a further embodiment of this utility model, the locking mechanism includes three limiting posts, all of which are fixedly connected to one side of the second fixing ear and are evenly arranged in a ring. A pressure plate is slidably fitted onto the surface of the bolt near the second fixing ear. A limiting groove is formed on the surface of the pressure plate near the three limiting posts, and the three limiting posts are slidably connected inside the limiting groove. A sliding groove is formed inside the pressure plate, and a sliding plate is slidably connected inside the sliding groove. A pad is fixedly connected to the surface of the pressure plate near the nut, and two locking posts are slidably connected to one side of the pad. Both locking posts are configured to cooperate with the nut and are fixedly connected to one side of the sliding plate. An adjustment mechanism for adjusting the locking posts is provided on the surface of the sliding plate away from the pad. The nut can be locked by the locking posts.

[0009] As a further embodiment of this utility model, the adjustment mechanism includes multiple springs, each fixedly connected to one side of the slide plate. The multiple springs are arranged in a ring and are uniformly distributed. The other end of each spring is fixedly connected to one side of the slide groove. Two pull plates are symmetrically fixedly connected to the surface of the slide plate. The two pull plates are slidably connected to both sides of the pressure plate. Support plates are fixedly connected to both sides of the third and first fixing clamps. Insertion pins are fixedly connected to the side of the second and fourth fixing clamps near the two support plates. The insertion pins are slidably connected to one side of the support plates. The slide plate can be adjusted by the arrangement of the springs.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model adopts a technical solution of separately setting the first fixing clamp and the second fixing clamp, and the third fixing clamp and the fourth fixing clamp, so it can ensure that it can meet different construction requirements. This effectively solves the problem that different roadways may have different widths and shapes, so the dimensions of the U-shaped steel may also be different, which would cause the fastening device to fail to meet the needs of different site conditions and thus cause unnecessary waste. Because the first fixing clamp and the second fixing clamp are set independently, the distance between them can be adjusted. After the first fixing clamp and the second fixing clamp are connected, the third fixing clamp and the fourth fixing clamp are connected in the same way. After the third fixing clamp and the fourth fixing clamp are connected, the third fixing clamp is connected to the first fixing clamp, and the fourth fixing clamp is connected to the second fixing clamp. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a fastening device for roadway support connection proposed in this utility model.

[0013] Figure 2 This is a partial structural diagram of a fastening device for roadway support connection proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the locking mechanism of a fastening device for roadway support connection proposed in this utility model;

[0015] Figure 4 for Figure 3 A magnified structural diagram at point A in the diagram.

[0016] In the diagram: 1. First fixing clip; 2. Third fixing clip; 3. Bolt; 101. Second fixing clip; 102. First fixing ear; 103. Second fixing ear; 104. Locking groove; 105. Limiting post; 106. Support plate; 107. Insertion post; 201. Fourth fixing clip; 301. Pressure plate; 302. Limiting groove; 303. Sliding groove; 304. Spring; 305. Slide plate; 306. Locking post; 307. Pad; 308. Pull plate; 309. Nut; 310. Locking hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1 - Figure 4A fastening device for connecting roadway support includes a first fixing clamp 1, a second fixing clamp 101 fitted on one side of the first fixing clamp 1, a third fixing clamp 2 at the top of the first fixing clamp 1, and a fourth fixing clamp 201 near the second fixing clamp 101 of the third fixing clamp 2. The first fixing clamp 1, the second fixing clamp 101, the third fixing clamp 2, and the fourth fixing clamp 201 are arranged in a mutually cooperating manner. A first fixing ear 102 is fixedly connected to one end of the first fixing clamp 1 and the third fixing clamp 2, and a second fixing ear 103 is fixedly connected to the end of the second fixing clamp 101 and the first fixing clamp 1, and the third fixing clamp 2 and the fourth fixing clamp 201, on one side of each of the two first fixing ears 102 and the second fixing ears 103. The arrangement of the first fixing clamp 1 and the second fixing clamp 101, and the third fixing clamp 2 and the fourth fixing clamp 201, ensures that different construction requirements can be met.

[0019] Preferably, the connecting mechanism includes a locking groove 104, which is formed on one side of the first fixing ear 102. A bolt 3 is slidably connected inside the locking groove 104, and the bolt 3 and the locking groove 104 are mutually matched. A nut 309 is fitted on the surface of the bolt 3 near the second fixing ear 103. The surface of the nut 309 near the second fixing ear 103 has multiple locking holes 310. The locking holes 310 can limit the nut 309. The multiple locking holes 310 are provided with a locking mechanism for locking the nut 309. The fixing clip can be connected by the bolt 3.

[0020] Furthermore, the locking mechanism includes three limiting posts 105, all of which are fixedly connected to one side of the second fixing ear 103, and are evenly arranged in a ring. A pressure plate 301 is slidably fitted onto the surface of the bolt 3 near the second fixing ear 103. Each surface of the pressure plate 301 near the three limiting posts 105 has a limiting groove 302, and the three limiting posts 105 are slidably connected inside the limiting groove 302. A sliding groove 303 is formed inside the pressure plate 301, and a sliding plate 305 is slidably connected inside the sliding groove 303. A pad 307 is fixedly connected to the surface of plate 301 near the nut 309. Two locking pins 306 are slidably connected to one side of the pad 307. The pad 307 ensures that the nut 309 can be stably connected to the locking pins 306. The two locking pins 306 are designed to cooperate with the nut 309. The two locking pins 306 are fixedly connected to one side of the slide plate 305. The surface of the slide plate 305 away from the pad 307 is provided with an adjustment mechanism for adjusting the locking pins 306. The locking pins 306 can lock the nut 309.

[0021] Furthermore, the adjustment mechanism includes multiple springs 304, all of which are fixedly connected to one side of the slide plate 305. The multiple springs 304 are arranged in a ring and are uniformly arranged. The other end of each of the multiple springs 304 is fixedly connected to one side of the inside of the slide groove 303. Two pull plates 308 are symmetrically fixedly connected to the surface of the slide plate 305. The slide plate 305 can be reset by the pull plates 308. The two pull plates 308 are slidably connected to both sides of the pressure plate 301. Support plates 106 are fixedly connected to both sides of the third fixing clamp 2 and the first fixing clamp 1. Insertion posts 107 are fixedly connected to the side of the second fixing clamp 101 and the fourth fixing clamp 201 near the two support plates 106. The insertion posts 107 are slidably connected to one side of the support plates 106. The slide plate 305 can be adjusted by the springs 304.

[0022] Working Principle: During use, the first fixing clamp 1 and the second fixing clamp 101 are adjusted laterally according to the width of the material. Since the first fixing clamp 1 and the second fixing clamp 101 are independently set, the distance between them can be adjusted. A first fixing ear 102 and a second fixing ear 103 are respectively provided at one end of the first fixing clamp 1 and the second fixing clamp 101. After the positions of the first fixing clamp 1 and the second fixing clamp 101 are determined, the bolt 3 is inserted into one side of the first fixing ear 102 and the second fixing ear 103. A locking groove 104 is provided on one side of the first fixing ear 102, and the locking groove 104 cooperates with the nut at one end of the bolt 3, thus ensuring that the bolt 3 will not rotate during fixing. After the bolt 3 cooperates with the locking groove 104, the pressure plate 301 is fitted onto the surface of the bolt 3. A limiting groove 302 is provided on one side of the pressure plate 301, and the limiting groove 302 cooperates with the limiting post 105 on one side of the second fixing ear 103, thus ensuring that the bolt 3 does not rotate during fixing. After the plate 301 is connected to the second fixing ear 103, rotation can be avoided. After the pressure plate 301 is fixed, the nut 309 is connected to the bolt 3. Two locking pins 306 are installed on one side of the pressure plate 301, and the locking pins 306 cooperate with the locking hole 310 on the side of the nut 309. As the nut 309 continues to rotate, the locking pins 306 will enter the nut 309, thereby achieving the purpose of constraining and fixing it. A pad 307 is also installed between the pressure plate 301 and the nut 309. The pad 307 ensures that the nut 309 can be stably connected to the locking pins 306. After the first fixing clip 1 and the second fixing clip 101 are connected, the third fixing clip 2 and the fourth fixing clip 201 are connected in the same way. After the third fixing clip 2 and the fourth fixing clip 201 are connected, the third fixing clip 2 is connected to the first fixing clip 1, and the fourth fixing clip 201 is connected to the second fixing clip 101.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fastening device for roadway support connections, comprising a first fixing clip (1), characterised in that, The first fixed clamp (1) is matched with the second fixed clamp (101) on one side, the top of the first fixed clamp (1) is provided with the third fixed clamp (2), the third fixed clamp (2) is provided with the fourth fixed clamp (201) on the side close to the second fixed clamp (101), the first fixed clamp (1), the second fixed clamp (101), the third fixed clamp (2) and the fourth fixed clamp (201) are matched with each other, and the first fixed ear (102) is fixedly connected to one end of the first fixed clamp (1) and the third fixed clamp (2), the second fixed ear (103) is fixedly connected to the end portion on the side close to the first fixed ear (102) of the second fixed clamp (101) and the fourth fixed clamp (201), and the first fixed ear (102) and the second fixed ear (103) are provided with a connecting mechanism for connecting the second fixed clamp (101) with the first fixed clamp (1), the third fixed clamp (2) and the fourth fixed clamp (201) on one side.

2. The fastening device for roadway support connection according to claim 1, characterized in that, The connecting mechanism comprises a lock groove (104), the lock groove (104) is formed on one side of the first fixed ear (102), the bolt (3) is slidably connected in the lock groove (104), and the bolt (3) and the lock groove (104) are matched with each other, the nut (309) is matched with the surface on the side close to the second fixed ear (103) of the bolt (3), a plurality of lock holes (310) are formed in the surface on the side close to the second fixed ear (103) of the nut (309), and the locking mechanism for locking the nut (309) is arranged in the plurality of lock holes (310).

3. A fastening device for roadway support connections according to claim 2, characterized in that The locking mechanism comprises three limiting columns (105), the three limiting columns (105) are fixedly connected to one side of the second fixed ear (103), and the three limiting columns (105) are evenly arranged in a ring shape, the pressing plate (301) is slidably arranged on the surface on the side close to the second fixed ear (103) of the bolt (3), the limiting grooves (302) are formed in the surface on the side close to the three limiting columns (105) of the pressing plate (301), the three limiting columns (105) are slidably connected in the limiting grooves (302), and the sliding groove (303) is formed in the pressing plate (301).

4. A fastening device for roadway support connections according to claim 3, characterized in that The sliding plate (305) is slidably connected in the sliding groove (303), the gusset plate (307) is fixedly connected to the surface on the side close to the nut (309) of the pressing plate (301), the two lock columns (306) are slidably connected to one side of the gusset plate (307), the two lock columns (306) are matched with the nut (309), the two lock columns (306) are fixedly connected to one side of the sliding plate (305), and the adjusting mechanism for adjusting the lock column (306) is arranged on the surface on the side away from the gusset plate (307) of the sliding plate (305).

5. A fastening device for roadway support connections according to claim 4, characterized in that The adjusting mechanism comprises a plurality of springs (304), each of which is fixedly connected to one side of a sliding plate (305), the plurality of springs (304) are arranged in a ring shape and uniformly, and the other ends of the plurality of springs (304) are fixedly connected to one side in the interior of a sliding groove (303), and the surface of the sliding plate (305) is fixedly connected with two pull plates (308) in a symmetrical mode, and the two pull plates (308) are slidingly connected to the two sides of a pressing plate (301).

6. The fastener for use in connection with the support of roadways according to claim 1, characterized in that The third fixed clamps (2) and the first fixed clamps (1) are fixedly connected with support plates (106) on the two sides, the second fixed clamps (101) and the fourth fixed clamps (201) are fixedly connected with plug-in columns (107) on the sides close to the two support plates (106), and the plug-in columns (107) are slidingly connected to one side of the support plates (106).

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