Soft rock roadway supporting anchor net fixing device

Abstract

The utility model relates to the technical field of soft rock roadway supporting anchor net fixing devices, and particularly discloses a soft rock roadway supporting anchor net fixing device. The soft rock roadway supporting anchor net fixing device comprises a bottom plate, a fixing assembly is arranged in the bottom plate, the fixing assembly comprises a handle, a fixing block and sponges, and the handle is connected with a connecting block through a screw rod. Then a screw rod is manually rotated to drive a connecting block to move backwards, the connecting block moves backwards to enable a rotating block to move forwards, at the moment, two sets of half gear blocks rotate along with movement of the rotating block, and then two sets of gear clamping plates are driven to get close to each other, so that the operation of fixing and clamping the supporting anchor net is achieved; therefore, the position of the supporting anchor net in the roadway is stable and fixed, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft rock tunnel support anchor net fixing devices, in particular to a soft rock tunnel support anchor net fixing device. Background Art

[0002] Soft rock tunnels possess unique engineering properties in underground engineering, presenting numerous challenges for tunnel support. Soft rock generally exhibits low strength, high porosity, poor cementation, and is susceptible to softening and disintegration upon contact with water. Following tunnel excavation, the surrounding rock in soft rock tunnels rapidly and significantly deforms. This deformation is time-sensitive and persists for a long time, potentially leading to tunnel cross-section reduction, roof subsidence, and convergence of the two sides, seriously impacting tunnel stability and operational safety.

[0003] Patent document 1 discloses a soft rock tunnel support anchor net fixing device, which can adjust the position of the fixing bolt through the cooperation between the adjustment structure and the fixing structure, can be used for anchor nets with different installation angles, improves the practicality of the fixed anchor net, can directly fix the anchor net from the anchor net node, improves the fixing strength, and the spherical protrusion can reduce the contact area between the anchor net and the fixing structure, thereby reducing friction.

[0004] However, this patent cannot fix and clamp the bottom of the anchor net. During actual use, the anchor net may become loose, warped or shifted at the bottom, causing some soft rocks to deform due to lack of sufficient fixation. For this reason, a soft rock tunnel support anchor net fixing device is proposed.

[0005] Patent Document 1

[0006] Chinese utility model patent, authorization announcement number: CN220869436U, announcement date: 2024.04.30. Utility Model Content

[0007] The purpose of the present utility model is to provide a soft rock tunnel support anchor net fixing device to solve the problem proposed in the above background technology that the bottom of the anchor net cannot be fixed and clamped. During actual use, the anchor net may easily become loose, warped or shifted at the bottom, thereby causing some soft rocks to deform due to lack of sufficient fixation.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0009] A soft rock tunnel support anchor net fixing device includes a base plate, a fixing component is arranged inside the base plate, the fixing component includes a handle, a fixing block and a sponge, the handle is connected to the connecting block through a screw rod, the connecting block is connected to the rotating block through a rotating rod, the rotating block is connected to the fixing rod through a half gear block, the sponge is connected to the slider through a gear clamp, a sliding groove is opened on the surface of the base plate, and the slider is slidably connected to the inside of the sliding groove.

[0010] Preferably, one end of the screw rod is fixedly connected to the front side of the handle, and the other end of the screw rod is fixedly connected to the back side of the connecting block.

[0011] Preferably, the fixing block is fixedly mounted on the top of the base plate, and the outer wall of the screw rod is threadedly connected to the inner wall of the fixing block.

[0012] Preferably, two groups of rotating rods are provided, and the two groups of rotating rods are respectively fixedly connected to the left and right inner walls of the connecting block, the inner wall of the rotating block is rotatably connected to the circumferential surface of the rotating rod, and the end of the rotating block away from the rotating rod is rotatably connected to the inner wall of one end of the half gear block.

[0013] Preferably, the inner wall of the half gear block is rotatably connected to the circumferential surface of the fixed rod, the lower end of the fixed rod is fixedly connected to the top of the base plate, the half gear block is meshed with the gear splint, the sponge is fixedly mounted on the surface of the gear splint, and the slider is fixedly mounted on the bottom of the gear splint.

[0014] Preferably, a moving component is provided on the top of the base plate.

[0015] The mobile component includes a handle and a fixed frame. The fixed frame is fixedly installed on the top of the base plate. The bottom of the handle is fixedly connected to a connecting rod. Both sides of the bottom of the connecting rod are fixedly connected to pressing blocks.

[0016] Preferably, a spring is sleeved on the outside of the pressing block, and slideways are provided on the inner walls on both sides of the fixing frame. A first limiting hole is provided at one end of the slideway, and a second limiting hole is provided at the other end of the slideway.

[0017] The utility model has the following advantages:

[0018] As described above, the utility model describes a soft rock tunnel support anchor net fixing device. Through the setting of the fixing assembly, the staff first places the bottom of the support anchor net in the middle position of the two groups of sponges, and then manually turns the screw rod to drive the connecting block to move backward. The backward movement of the connecting block will cause the rotating block to move forward. At this time, the two groups of half-gear blocks will rotate with the movement of the rotating block, and then drive the two groups of gear clamps to move closer to each other, thereby realizing the operation of fixing and clamping the support anchor net. This can ensure that the position of the support anchor net in the tunnel is stably fixed. Conversely, the operation process of unclamping and fixing the support anchor net is the same. Such a design is concise and clear, and it is easy to operate. In addition, the present invention provides a moving component. When the staff needs to move the fixing device to another position, pressure can be applied to the pressing block to make it fit the surface of the slide. The staff then holds the handle with their hand and moves the pressing block along the slide to the position of the second limiting hole. At this time, the pressing block will automatically pop out. The staff can then hold the handle and move the fixing device to other work areas to carry out subsequent work tasks or meet the needs of different work scenarios, thereby improving the convenience of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the anchor net fixing device for supporting medium-soft rock tunnels of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the anchor net fixing device for supporting medium-soft rock tunnels of the utility model;

[0021] Figure 3 This is a schematic diagram of the fixing assembly in the present utility model;

[0022] Figure 4 This is a schematic diagram of the mobile component in the utility model;

[0023] Figure 5 This is a schematic diagram of the local structure of the mobile component in the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the mobile component part of the utility model.

[0025] In the figure, 1-base plate; 2-fixing assembly; 201-handle; 202-screw rod; 203-connecting block; 204-fixing block; 205-rotating rod; 206-rotating block; 207-fixing rod; 208-half gear block; 209-gear splint; 210-sponge; 211-slider; 212-slide groove;

[0026] 3-moving assembly; 301-handle; 302-connecting rod; 303-pressing block; 304-spring; 305-fixing frame; 306-slide; 307-first limiting hole; 308-second limiting hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] Example 1

[0034] like Figures 1 to 3 As shown, this embodiment describes a soft rock tunnel support anchor net fixing device, which includes a base plate 1 with a fixing component 2 arranged inside the base plate 1.

[0035] The fixing assembly 2 includes a handle 201, a fixing block 204 and a sponge 210. The handle 201 is connected to the connecting block 203 through a screw rod 202. The connecting block 203 is connected to the rotating block 206 through a rotating rod 205. The rotating block 206 is connected to the fixing rod 207 through a half gear block 208. The sponge 210 is connected to the slider 211 through a gear clamp 209. A sliding groove 212 is provided on the surface of the base plate 1. The slider 211 is slidably connected to the inside of the sliding groove 212. One end of the screw rod 202 is fixedly connected to the front of the handle 201, and the other end of the screw rod 202 is fixedly connected to the back of the connecting block 203. The fixing block 204 is fixedly installed on the top of the base plate 1. The screw rod 202 The outer wall of is threadedly connected to the inner wall of the fixed block 204, and two groups of rotating rods 205 are provided. The two groups of rotating rods 205 are respectively fixedly connected to the left and right inner walls of the connecting block 203, and the inner wall of the rotating block 206 is rotatably connected to the circumferential surface of the rotating rod 205. The end of the rotating block 206 away from the rotating rod 205 is rotatably connected to the inner side wall of one end of the half gear block 208, and the inner wall of the half gear block 208 is rotatably connected to the circumferential surface of the fixed rod 207. The lower end of the fixed rod 207 is fixedly connected to the top of the base plate 1, and the half gear block 208 is meshed with the gear splint 209. The sponge 210 is fixedly mounted on the surface of the gear splint 209, and the slider 211 is fixedly mounted on the bottom of the gear splint 209. A rotating column is fixedly connected to the inner side wall of one end of the half gear block 208, and the inner wall of the rotating block 206 away from the end of the rotating rod 205 is rotatably connected to the outer wall of the rotating column. The half gear block 208 and the rotating block 206 are rotatably connected through the rotating column.

[0036] Specifically, through the setting of the fixing component 2, the staff first places the bottom of the support anchor net in the middle position of the two groups of sponges 210, and then manually rotates the screw rod 202 to drive the connecting block 203 to move backward. The backward movement of the connecting block 203 will cause the rotating block 206 to move forward. At this time, the two groups of half-gear blocks 208 will rotate with the movement of the rotating block 206, thereby driving the two groups of gear clamps 209 to move closer to each other, thereby realizing the operation of fixing and clamping the support anchor net, which can ensure that the position of the support anchor net in the tunnel is stably fixed. Conversely, the operation process of unclamping and fixing the support anchor net is the same. Such a design is simple and clear, and it is simple and easy to operate.

[0037] Example 2

[0038] This embodiment 2 describes a soft rock tunnel support anchor net fixing device. Except for the following technical features that are different from those of embodiment 1, the remaining technical features can refer to the above embodiment 1.

[0039] like Figure 1 、 Figure 4 、 Figure 5 as well as Figure 6 As shown, a movable assembly 3 is provided on the top of the base plate 1. The movable assembly 3 includes a handle 301 and a fixed frame 305. The fixed frame 305 is fixedly mounted on the top of the base plate 1. A connecting rod 302 is fixedly connected to the bottom of the handle 301. Pressing blocks 303 are fixedly connected to both sides of the bottom of the connecting rod 302. Springs 304 are sleeved on the outer surface of the pressing blocks 303. Slideways 306 are provided on the inner walls of both sides of the fixed frame 305. A first limiting hole 307 is provided at one end of the slideway 306, and a second limiting hole 308 is provided at the other end of the slideway 306. The first limiting hole 307 and the second limiting hole 308 are both adapted to the pressing blocks 303. The inner wall of the handle 301 is provided with grooves adapted to the fingers.

[0040] Specifically, through the provided moving component 3, when the staff needs to move the fixing device to another position, pressure can be applied to the pressing block 303 to make it fit the surface of the slide 306. Then the staff holds the handle 301 with his hand and moves the pressing block 303 along the slide 306 to the position of the second limiting hole 308. At this time, the pressing block 303 will automatically pop out, and then the staff can hold the handle 301 and move the fixing device to other work areas to carry out subsequent work tasks, thereby improving the convenience of work.

[0041] The working process of the utility model medium soft rock tunnel support anchor net fixing device is as follows:

[0042] First, the staff needs to place the fixing device in a position close to the wall in the tunnel, and then use bolts to fix the position of the fixing device. Then the staff can place the support anchor net in the middle position of the two groups of sponges 210. After that, the staff can hold the handle 201 with their hands and twist it, thereby driving the screw rod 202 to rotate inside the fixed block 204. The staff needs to adjust the direction of rotation and twist the screw rod 202 in the direction of backward movement, so that the connecting block 203 will move backward synchronously. At this time, under the action of the rotating rod 205, the rotating block 206 will move forward, and then through the rotation connection relationship between the rotating block 206 and the half-gear block 208, the two groups of half-gear blocks 208 will rotate on the outer wall of the fixed rod 207 along the rotation motion trajectory that approaches each other, thereby driving the two groups of gear splints 209 to also rotate. The two sets of gear clamps 209 will move synchronously towards each other, and at the same time, the two sets of gear clamps 209 will also slide inside the slide groove 212 until the two sets of sponges 210 firmly clamp the bottom of the support anchor net. At this time, the twisting of the handle 201 can be stopped. Secondly, when the fixing device needs to be moved to other areas, the staff can manually press the pressing block 303 located in the first limiting hole 307. At this time, under the action of the spring 304, the pressing block 303 will shrink until its surface is tightly fitted to the surface of the slide 306. Then the staff can hold the handle 301 by hand and move the pressing block 303 to the second limiting hole 308 position. The pressing block 303 will pop out at the second limiting hole 308 position to achieve position limitation. Then the staff can hold the handle 301 by hand to lift the entire fixing assembly 2 and move it to other designated working areas.

[0043] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A soft rock tunnel support anchor net fixing device, comprising a bottom plate (1), characterized in that: A fixing component (2) is provided inside the base plate (1); The fixing assembly (2) comprises a handle (201), a fixing block (204) and a sponge (210), wherein the handle (201) is connected to the connecting block (203) via a screw rod (202); The connecting block (203) is connected to a rotating block (206) via a rotating rod (205); the rotating block (206) is connected to a fixing rod (207) via a half gear block (208); The sponge (210) is connected to a slider (211) via a gear clamp (209); a slide groove (212) is provided on the surface of the bottom plate (1), and the slider (211) is slidably connected to the inside of the slide groove (212).

2. The soft rock tunnel support anchor net fixing device according to claim 1, characterized in that: One end of the screw rod (202) is fixedly connected to the front side of the handle (201), and the other end of the screw rod (202) is fixedly connected to the back side of the connecting block (203).

3. The soft rock tunnel support anchor net fixing device according to claim 1, characterized in that: The fixing block (204) is fixedly mounted on the top of the base plate (1), and the outer wall of the screw rod (202) is threadedly connected to the inner wall of the fixing block (204).

4. The soft rock tunnel support anchor net fixing device according to claim 2, characterized in that: The rotating rods (205) are provided in two groups; The two groups of rotating rods (205) are respectively fixedly connected to the left and right inner walls of the connecting block (203).

5. The soft rock tunnel support anchor net fixing device according to claim 4, characterized in that: The inner wall of the rotating block (206) is rotatably connected to the circumferential surface of the rotating rod (205), and one end of the rotating block (206) away from the rotating rod (205) is rotatably connected to the inner side wall of one end of the half gear block (208).

6. The soft rock tunnel support anchor net fixing device according to claim 5, characterized in that: The inner wall of the half gear block (208) is rotatably connected to the circumferential surface of the fixing rod (207), and the lower end of the fixing rod (207) is fixedly connected to the top of the bottom plate (1); The half gear block (208) is meshedly connected with the gear clamping plate (209), the sponge (210) is fixedly mounted on the surface of the gear clamping plate (209), and the slider (211) is fixedly mounted on the bottom of the gear clamping plate (209).

7. The soft rock tunnel support anchor net fixing device according to claim 6, characterized in that: A moving component (3) is provided on the top of the base plate (1).

8. The soft rock tunnel support anchor net fixing device according to claim 7, characterized in that: The moving assembly (3) comprises a handle (301) and a fixed frame (305), wherein the fixed frame (305) is fixedly mounted on the top of the base plate (1), and the bottom of the handle (301) is fixedly connected to a connecting rod (302); Both sides of the bottom of the connecting rod (302) are fixedly connected with pressing blocks (303).

9. The soft rock tunnel support anchor net fixing device according to claim 8, characterized in that: The outer sleeve of the pressing block (303) is provided with a spring (304); Slideways (306) are provided on both inner walls of the fixed frame (305), one end of the slideway (306) is provided with a first limiting hole (307), and the other end is provided with a second limiting hole (308).

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