Anti-rockfall supporting device for iron mine roadway
By using a detachable mounting frame, arc-shaped support rods, and wire mesh structure, the problems of large size and inconvenient transportation of existing devices are solved, achieving flexible support and protection for the tunnel roof, and facilitating transportation and reuse.
Patent Information
- Application Number
- CN202520202851.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing rockfall prevention support devices for tunnels are large in size, inconvenient to transport, and lack flexibility.
The device employs a detachable mounting frame, arc-shaped support rods, and wire mesh structure. Through a detachable base rod and adjustable spacing design, combined with locking bolts and guide plates, it enables flexible assembly and disassembly.
It provides convenient support and protection for the tunnel roof, preventing falling rocks, and the device is easy to transport and reuse.
Smart Images
Figure CN223739449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the roadway protection technical field, concretely is iron mine roadway anti -rockfall support device. BACKGROUND
[0002] Iron mine roadway is various passages drilled between the ground and the ore body, which are used for transporting iron ore, ventilation, drainage, pedestrian and various necessary preparation projects newly drilled for mining equipment to mine iron ore. These passages are collectively referred to as roadways. When construction is carried out in the roadway, the rock at the top of the roadway is unstable, and the action force generated by the construction easily causes the rock at the top of the roadway to fall. Currently, protective equipment is usually used to protect the rock at the top of the roadway to prevent it from falling.
[0003] However, the existing technology still has some defects when protecting the rock at the top of the roadway.
[0004] The roadway anti-rockfall support device in the prior art is mostly integrated. Since the device has a large volume, it is inconvenient to transport the device, and the flexibility of the roadway anti-rockfall support device is poor. UTILITY MODEL CONTENTS
[0005] To solve the above problems, the purpose of the utility model is to provide an iron mine roadway anti-rockfall support device.
[0006] To solve the above technical problems, the utility model adopts the following technical scheme: an iron mine roadway anti-rockfall support device includes two fixed frames, two arc-shaped support rods are arranged between the two fixed frames, a steel wire mesh is detachably mounted between the two arc-shaped support rods, a bottom rod is fixedly connected to the two ends of each arc-shaped support rod, and one end of the bottom rod is detachably mounted on the fixed frame.
[0007] First and second fixed plates are fixedly connected to the two sides of the bottom rod and the arc-shaped support rod, the inner and outer surfaces of the steel wire mesh are in movable contact with one side of the first and second fixed plates, and first and second guide plates are fixedly connected to the two sides of the arc-shaped support rod, and the inner and outer surfaces of the steel wire mesh are in movable contact with one side of the first and second guide plates.
[0008] Preferably, a fixing hole is formed in each end of the two fixed frames.
[0009] Preferably, two locking bolts are threadedly rotatably mounted on the other side of the first fixed plate, two first threaded holes are formed in one side of the second fixed plate, and the locking bolts pass through the steel wire mesh and are threadedly rotatably connected to the inner walls of the first threaded holes.
[0010] Preferably, a first clamping plate is fixedly installed on the locking bolt, and two second clamping plates are fixedly installed on one side of the second fixing plate. One side of the first clamping plate and one side of the second clamping plate are in movable contact with the inner and outer surfaces of the wire mesh.
[0011] Preferably, the upper surfaces of both fixing frames are provided with a plurality of evenly distributed insertion slots, and one end of the bottom rod is movably inserted into the inner wall of the insertion slot.
[0012] Preferably, two fixing bolts are threadedly mounted on the lower surface of both fixing frames, and a second threaded hole is opened at one end of the bottom rod. One end of the fixing bolt and the inner wall of the second threaded hole are threadedly connected.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. In this utility model, the tunnel rockfall prevention support device, which consists of a fixed frame, an arc-shaped support rod and a wire mesh, can conveniently support the top wall of the tunnel and protect the gravel on the top of the tunnel, so as to prevent the gravel from falling down and affecting the normal construction in the tunnel.
[0015] 2. In this utility model, by setting a detachable base rod and a detachable wire mesh, the distance between the two arc-shaped support rods can be adjusted according to the actual protection conditions of the tunnel roof, making the device flexible and convenient. At the same time, the detachable fixing frame and arc-shaped support frame make the device easy to transport and convenient for secondary use. Attached Figure Description
[0016] 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 these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of the iron mine roadway rockfall prevention support device of this utility model.
[0018] Figure 2 This is a schematic diagram of the separation structure of the base rod and the fixing frame of this utility model.
[0019] Figure 3 This is a schematic diagram of the separation structure of the wire mesh and the arc-shaped support rod of this utility model.
[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of part A in the diagram.
[0021] Figure 5 This is a schematic diagram of the separation structure of the first fixing plate and the second fixing plate of this utility model.
[0022] Figure 6 This is a schematic diagram of the bottom structure of the base rod of this utility model.
[0023] In the diagram: 1. Fixing frame; 11. Fixing hole; 2. Arc-shaped support rod; 3. Wire mesh; 21. Base rod; 22. First fixing plate; 23. Second fixing plate; 24. Locking bolt; 241. First threaded hole; 242. First clamping plate; 243. Second clamping plate; 25. First guide plate; 26. Second guide plate; 41. Insertion groove; 42. Fixing bolt; 43. Second threaded hole. Detailed Implementation
[0024] 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.
[0025] Example: Figures 1-6 As shown, this utility model provides a rockfall prevention support device for iron mine roadways, including two fixed frames 1. Each fixed frame 1 has a fixing hole 11 at both ends. Two arc-shaped support rods 2 are provided between the two fixed frames 1. A wire mesh 3 is detachably installed between the two arc-shaped support rods 2. The fixing holes 11 facilitate the fixing of the fixed frames 1 to the side wall of the roadway, thereby fixing the assembled arc-shaped support rods 2 and wire mesh 3. When the arc-shaped support rods 2 and wire mesh 3 are fixed to the top wall of the roadway, the arc-shaped support rods 2 can support the top wall of the roadway, and the wire mesh 3 can prevent gravel from falling from the top wall of the roadway. Each end of the two arc-shaped support rods 2 is fixedly connected to a base rod 21. One end of the base rod 21 is detachably installed on the fixed frame 1. The detachable base rod 21 facilitates the individual disassembly of the arc-shaped support rods 2 by the construction personnel.
[0026] The two sides of the bottom rod 21 and the arc-shaped support rod 2 are fixedly connected with a first fixed plate 22 and a second fixed plate 23, the inner and outer surfaces of the steel wire mesh 3 are movably contacted with one side of the first fixed plate 22 and the second fixed plate 23, the two sides of the arc-shaped support rod 2 are fixedly connected with a plurality of first guide plates 25 and second guide plates 26, the inner and outer surfaces of the steel wire mesh 3 are movably contacted with one side of the first guide plate 25 and the second guide plate 26, the other side of the first fixed plate 22 is screwedly rotatably provided with two locking bolts 24, the second fixed plate 23 is provided with two first threaded holes 241, the locking bolt 24 penetrates through the steel wire mesh 3 and is screwedly rotatably connected with the inner wall of the first threaded hole 241, the locking bolt 24 is fixedly provided with a first pressing disc 242, the second fixed plate 23 is fixedly provided with two second pressing discs 243, one side of the first pressing disc 242 and one side of the second pressing disc 243 are movably contacted with the inner and outer surfaces of the steel wire mesh 3, through the arrangement of the first fixed plate 22 and the second fixed plate 23, when the edge of the steel wire mesh 3 passes between the first fixed plate 22 and the second fixed plate 23, the locking bolt 24 passes through the aperture of the steel wire mesh 3 and is screwedly arranged in the first threaded hole 241, so that the steel wire mesh 3 is fixed, through the arrangement of the first pressing disc 242 and the second pressing disc 243, the first pressing disc 242 cooperates with the second pressing disc 243 to press the edge of the steel wire mesh 3, so that the steel wire mesh 3 is fixed between the two arc-shaped support rods 2, through the arrangement of the first guide plate 25 and the second guide plate 26, the edge of the steel wire mesh 3 between the two arc-shaped support rods 2 passes between the first guide plate 25 and the second guide plate 26, so that the stability of the steel wire mesh 3 is improved, the steel wire mesh 3 is laid along the track of the arc-shaped support rod 2, so that the laid steel wire mesh 3 can be arc-shaped and attached to the top wall of the roadway.
[0027] The upper surfaces of the two fixed frames 1 are provided with a plurality of insertion grooves 41 which are uniformly distributed, one end of the bottom rod 21 is movably inserted into the inner wall of the insertion groove 41, the lower surfaces of the two fixed frames 1 are screwedly rotatably provided with two fixed bolts 42, the one end of the bottom rod 21 is provided with a second threaded hole 43, the one end of the fixed bolt 42 is screwedly rotatably connected with the inner wall of the second threaded hole 43, through the arrangement of the insertion groove 41, the fixed bolt 42 and the second threaded hole 43, when the bottom rod 21 is vertically inserted into the inside of the insertion groove 41, the fixed bolt 42 is screwedly arranged in the inside of the second threaded hole 43, so that the bottom rod 21 is fixed, so that the arc-shaped support rod 2 is fixed on the fixed frame 1, through the arrangement of a plurality of insertion grooves 41, the distance between the two arc-shaped support rods 2 can be adjusted according to the width of the steel wire mesh 3, so that the flexibility is improved.
[0028] Working principle: when the broken stone of the roadway roof needs to be protected, the construction personnel first inserts four bottom rods 21 into the corresponding insertion slots 41 according to the width of the steel wire mesh 3, then rotates the fixing bolts 42 into the second threaded holes 43 to fix the bottom rods 21, so as to fix the arc-shaped supporting rods 2 on the fixing frames 1;
[0029] Subsequently, the construction personnel lays the steel wire mesh 3 along the plurality of first fixing plates 22, second fixing plates 23, first guide plates 25 and second guide plates 26, and the laid steel wire mesh 3 is in an arc shape and consistent with the arc-shaped supporting rods 2, and then rotates the plurality of locking bolts 24 into the corresponding first threaded holes 241, the locking bolts 24 pass through the apertures of the steel wire mesh 3 and press the edges of the steel wire mesh 3 by the plurality of first pressing discs 242 and the plurality of second pressing discs 243;
[0030] Finally, the construction personnel places the supporting device on the top of the roadway, and the two fixing frames 1 are in contact with the sidewalls of the roadway, and then fixes the fixing frames 1 on the sidewalls of the roadway through the fixing holes 11 and expansion screws, at this time, the arc-shaped supporting rods 2 support the top wall of the roadway, and the steel wire mesh 3 protects the broken stone on the top of the roadway from falling down.
[0031] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.
Claims
1. A rock fall support device for use in iron ore mine tunnels, comprising two fixed frames (1), characterised in that: Two arc-shaped supporting rods (2) are arranged between the two fixing frames (1), a steel wire mesh (3) is detachably installed between the two arc-shaped supporting rods (2), and bottom rods (21) are fixedly connected to the two ends of the arc-shaped supporting rods (2). First fixing plates (22) and second fixing plates (23) are fixedly connected to the two sides of the bottom rods (21) and the arc-shaped supporting rods (2), the inner and outer surfaces of the steel wire mesh (3) are movably connected to one side of the first fixing plates (22) and the second fixing plates (23), and a plurality of first guide plates (25) and second guide plates (26) are fixedly connected to the two sides of the arc-shaped supporting rods (2), and the inner and outer surfaces of the steel wire mesh (3) are movably connected to one side of the first guide plates (25) and the second guide plates (26).
2. The rock fall protection device of claim 1, wherein, Fixed holes (11) are arranged at the two ends of the two fixing frames (1).
3. The rock fall protection system of claim 1, wherein, Two locking bolts (24) are threadedly rotatably installed on the other side of the first fixing plates (22), first threaded holes (241) are arranged on one side of the second fixing plates (23), and the locking bolts (24) penetrate through the steel wire mesh (3) and are threadedly rotatably connected to the inner walls of the first threaded holes (241).
4. The rock fall protection system of claim 3, wherein the at least one support member is a cable. First pressing discs (242) are fixedly installed on the locking bolts (24), and second pressing discs (243) are fixedly installed on one side of the second fixing plates (23), and one side of the first pressing discs (242) and one side of the second pressing discs (243) are movably connected to the inner and outer surfaces of the steel wire mesh (3).
5. The iron mine roadway rock fall prevention support device according to claim 1, characterized by, A plurality of plug-in grooves (41) are arranged on the upper surfaces of the two fixing frames (1), and one end of the bottom rod (21) is movably plugged into the inner walls of the plug-in grooves (41).
6. The rock fall protection system of claim 5, wherein, Two fixing bolts (42) are threadedly rotatably installed on the lower surfaces of the two fixing frames (1), second threaded holes (43) are arranged at one end of the bottom rod (21), and one end of the fixing bolts (42) is threadedly rotatably connected to the inner walls of the second threaded holes (43).