Steel bar fixing device for coal mine support

Abstract

The utility model belongs to the technical field of coal mine supporting, and particularly relates to a reinforcing steel bar fixing device for coal mine supporting, which comprises a supporting reinforcing steel bar, a fixing mechanism is arranged on the supporting reinforcing steel bar, an anchor rod penetrates through the fixing mechanism, the fixing mechanism comprises a fixing seat, a plurality of groups of mounting ports are arranged on the outer wall of the fixing seat, and the mounting ports are communicated with the supporting reinforcing steel bar. The fixed seat is in threaded connection with a screw rod; the pressing plate is connected in the mounting opening in a sliding manner, and the pressing plate is rotationally connected with the screw rod; and the limiting assembly is arranged on the lower side of the pressing plate, the pressing plate can be driven to press downwards by rotating the threaded rod, and then the supporting steel bars are fixed. According to the reinforcing steel bar fixing device for coal mine supporting, through the use of the fixing mechanism and the anchor rod, supporting reinforcing steel bars can be rapidly fixed in the using process, the supporting reinforcing steel bars can be rapidly replaced when needing to be replaced, operation is convenient, the working efficiency is improved, and meanwhile the fixing effect on the supporting reinforcing steel bars is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine support technology, specifically a steel bar fixing device for coal mine support. Background Technology

[0002] Coal mine support reinforcement is formed by welding and fixing multiple sets of steel bars. It is called welded steel mesh, steel welded mesh, steel welded wire mesh, steel welded wire mesh sheet, and steel mesh sheet, etc. It is a mesh sheet in which longitudinal and transverse steel bars are arranged at certain intervals and at right angles to each other, and all intersections are welded together.

[0003] Currently, existing coal mine support nets are generally installed on the walls of coal mine roadways using anchor bolts. However, with continuous use, the support nets may deform and become damaged, requiring replacement. But since the support nets are fixed by anchor bolts, this replacement method is very inconvenient. Therefore, a steel bar fixing device for coal mine support is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a steel reinforcement fixing device for coal mine support, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a steel reinforcement fixing device for coal mine support, comprising a support steel reinforcement, wherein a fixing mechanism is provided on the support steel reinforcement, the fixing mechanism is penetrated by an anchor rod, and the fixing mechanism includes:

[0006] A mounting base, wherein multiple sets of mounting ports are provided on the outer wall of the mounting base, and a screw is threadedly connected to the mounting base;

[0007] A pressure plate, which is slidably connected in the mounting opening and rotatably connected to a screw;

[0008] The limiting component is located on the lower side of the pressure plate. By placing the support steel bar in the installation opening and then rotating the screw, the screw drives the pressure plate to rotate down, thereby fixing the support steel bar. By fixing multiple sets of support steel bars, the splicing and fixing of the support steel bars is achieved. Then, the anchor rod is passed through the fixing seat and fixed to the mine wall to achieve the support of the coal mine.

[0009] Preferably, the fixing seat is penetrated by the anchor rod and slidably connected to the anchor rod.

[0010] Preferably, the limiting component includes a limiting block, the limiting block has an inner groove, a sliding plate is slidably connected in the inner groove, and a protrusion is fixedly connected to the lower side of the sliding plate.

[0011] Preferably, the outer wall of the limiting block has an opening, and the outer wall of the sliding plate is hinged with a first hinge rod. The end of the first hinge rod away from the sliding plate is hinged with a positioning block. The outer wall of the positioning block is hinged with a second hinge rod. The end of the second hinge rod away from the positioning block is hinged in the inner groove. When the limiting block moves to the bottom, the protrusion is squeezed, compressing the return spring. Under the combined action of the first hinge rod and the second hinge rod, the positioning block can position the support steel bar.

[0012] Preferably, the slide plate and the inner groove are elastically connected by a return spring.

[0013] Preferably, both hinge rod one and hinge rod two pass through the through opening.

[0014] This utility model provides a steel bar fixing device for coal mine support. It has the following beneficial effects:

[0015] (1) The coal mine support steel bar fixing device, through the use of fixing mechanism and anchor rod, enables the support steel bars to be quickly fixed during use, and can be quickly replaced when the support steel bars need to be replaced. It is easy to operate and improves work efficiency.

[0016] (2) The coal mine support steel bar fixing device uses a limiting component, so that when the limiting block moves to the bottom, the protrusion is squeezed and the return spring is compressed. Under the cooperation of hinge rod one and hinge rod two, the positioning block can position the support steel bar, improve the fixing effect of the support steel bar, and at the same time, it is convenient to remove the support steel bar when replacing the support steel bar later. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of structure A in the middle;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the present utility model;

[0022] Figure 5 This utility model Figure 4 Schematic diagram of structure B in the middle.

[0023] Explanation of icon numbers:

[0024] 1. Support reinforcement; 2. Fixing mechanism; 3. Anchor bolt; 21. Fixing seat; 22. Screw rod; 23. Pressure plate; 24. Mounting port; 25. Limiting component; 251. Limiting block; 252. Inner groove; 253. Slide plate; 254. Protrusion; 255. Hinge rod one; 256. Positioning block; 257. Hinge rod two; 258. Through port.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 This utility model proposes a steel bar fixing device for coal mine support, including a support steel bar 1, a fixing mechanism 2 provided on the support steel bar 1, and the fixing mechanism 2 being penetrated by an anchor rod 3.

[0028] In this embodiment of the utility model, in order to splice and fix the support steel bars 1, the fixing mechanism 2 specifically includes a fixing seat 21 and a pressure plate 23. The fixing seat 21 is penetrated by the anchor rod 3 and slidably connected to the anchor rod 3. Multiple sets of installation ports 24 are opened on the outer wall of the fixing seat 21. The fixing seat 21 is threadedly connected to the screw rod 22. The pressure plate 23 is slidably connected in the installation port 24. The pressure plate 23 is rotatably connected to the screw rod 22. The limiting component 25 is set on the lower side of the pressure plate 23. By placing the support steel bars 1 in the installation port 24 and then rotating the screw rod 22, the screw rod 22 drives the pressure plate 23 to rotate down, thereby fixing the support steel bars 1. By fixing multiple sets of support steel bars 1, the splicing and fixing of the support steel bars 1 is realized. Then, the anchor rod 3 is penetrated through the fixing seat 21 and then fixed to the mine wall to realize the support of the coal mine. Moreover, when the support steel bars 1 need to be replaced, they can be quickly replaced. The operation is convenient and the work efficiency is improved.

[0029] Furthermore, to improve the fixing effect on the support steel bar 1, specifically, the limiting component 25 includes a limiting block 251. The limiting block 251 has an inner groove 252, in which a sliding plate 253 is slidably connected. A protrusion 254 is fixedly connected to the lower side of the sliding plate 253. An opening 258 is provided on the outer wall of the limiting block 251. A hinge rod 255 is hinged to the outer wall of the sliding plate 253. A positioning block 256 is hinged to the end of the hinge rod 255 away from the sliding plate 253. A second hinge rod 257 is hinged to the outer wall of the positioning block 256. The second hinge rod 257 is located away from the positioning block. One end of 256 is hinged in the inner groove 252. The slide plate 253 is elastically connected to the inner groove 252 through a return spring. Both hinge rod 1 255 and hinge rod 257 pass through the through-hole 258. When the pressure plate 23 descends, it drives the limiting block 251 to move downward. During the process of the limiting block 251 moving to the bottom, the protrusion 254 is squeezed, compressing the return spring. Under the cooperation of hinge rod 1 255 and hinge rod 257, the positioning block 256 can position the support steel bar 1, improve the fixing effect of the support steel bar 1, and at the same time, facilitate the removal of the support steel bar 1 when it is replaced later.

[0030] In use, the support steel bar 1 is placed in the installation port 24, and then the screw 22 is rotated to make the screw 22 drive the pressure plate 23 to rotate down, thereby fixing the support steel bar 1. By fixing multiple sets of support steel bars 1, the splicing and fixing of the support steel bars 1 is achieved. Then, the anchor rod 3 is passed through the fixing seat 21 and fixed to the mine wall to achieve support for the coal mine. At the same time, when the pressure plate 23 descends, it drives the limiting block 251 to move downward. During the process of the limiting block 251 moving to the bottom, the protrusion 254 is squeezed, compressing the return spring. Under the cooperation of the first hinge rod 255 and the second hinge rod 257, the positioning block 256 can position the support steel bar 1.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A steel reinforcement fixing device for coal mine support, comprising support steel reinforcement (1), characterized in that: A fixing mechanism (2) is provided on the support steel bar (1), and the fixing mechanism (2) is penetrated by the anchor rod (3). The fixing mechanism (2) includes: A fixing seat (21) has multiple sets of mounting holes (24) on its outer wall, and a screw (22) is threadedly connected to the fixing seat (21). Pressure plate (23), which is slidably connected in mounting port (24), and is rotatably connected to screw (22); and a limiting component (25), which is disposed on the lower side of the pressure plate (23).

2. The steel reinforcement fixing device for coal mine support according to claim 1, characterized in that: The fixed seat (21) is penetrated by the anchor rod (3) and is slidably connected to the anchor rod (3).

3. The steel reinforcement fixing device for coal mine support according to claim 1, characterized in that: The limiting component (25) includes a limiting block (251), the limiting block (251) has an inner groove (252) inside, a sliding plate (253) is slidably connected in the inner groove (252), and a protrusion (254) is fixedly connected to the lower side of the sliding plate (253).

4. A steel reinforcement fixing device for coal mine support according to claim 3, characterized in that: The outer wall of the limiting block (251) has an opening (258), and the outer wall of the sliding plate (253) is hinged with a first hinge rod (255). The end of the first hinge rod (255) away from the sliding plate (253) is hinged with a positioning block (256). The outer wall of the positioning block (256) is hinged with a second hinge rod (257), and the end of the second hinge rod (257) away from the positioning block (256) is hinged in the inner groove (252).

5. A steel reinforcement fixing device for coal mine support according to claim 4, characterized in that: The slide plate (253) and the inner groove (252) are elastically connected by a return spring.

6. A steel reinforcement fixing device for coal mine support according to claim 4, characterized in that: Both hinge rod one (255) and hinge rod two (257) pass through the opening (258).

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