A topsoil resource protection device that reduces loss of soil resources

Abstract

The utility model discloses a kind of topsoil resource protection devices reducing soil resource loss, belong to water and soil conservation technical field, the device includes ground nail, setting on ground nail opening and closing mechanism and fixed mechanism, the opening and closing mechanism includes sliding ring, connecting block and opening and closing plate, sliding ring is along ground nail sliding, opening and closing plate is driven by connecting block and rotates outward and opens around fulcrum on ground nail, after ground nail is placed into underground and pours concrete, form expanded anchor head, the fixed mechanism includes fixed block fixed with ground nail, third slider rotatable around fulcrum and second spring, in the process of ground nail driving, fixed block extrudes third slider and generates rotation, using the reaction force of second spring forms self-locking clamping to ground nail. The utility model realizes instant stability and long-acting anchoring by the synergistic effect of opening and closing mechanism and fixed mechanism in stages, not only significantly improve the final pull-out resistance of ground nail, also enhance its installation stability, overall anchoring effect is reliable.

Description

Technical Field

[0001] This utility model relates to the field of soil and water conservation technology, and in particular to a topsoil resource protection device for reducing soil resource loss. Background Technology

[0002] In soil and water conservation, slope protection, and ecological restoration projects, the loss of topsoil resources is a critical issue that urgently needs to be addressed. To prevent rainwater erosion and wind erosion, protective netting is often laid to cover and stabilize exposed topsoil.

[0003] To effectively cover and secure large areas of protective netting to the soil surface, a large number of ground nails or anchors are typically required. These nails penetrate the mesh of the netting and are driven into the ground, providing a holding force through their own length and friction with the soil, thus ensuring that the netting does not shift or get lifted.

[0004] However, traditional topsoil anchoring nails are often simple in structure, mostly straight rods or with simple barbs. While this structure can provide some pull-out resistance in firm soils, its limitations become apparent in applications with more complex geological conditions. Especially in projects requiring subsequent concrete grouting reinforcement, or in loose soil layers, the bond strength between the simple rod-like structure and the grouting layer or loose soil is very limited. Once subjected to significant pull-out forces, such as frost heave, buoyancy, or external disturbances, the anchors can easily be pulled out of the solidified concrete or soil, causing localized or large-area failure of the anchoring protective net, ultimately failing to achieve the goal of long-term protection of topsoil resources.

[0005] Therefore, this utility model proposes a topsoil resource protection device to reduce soil resource loss, thereby addressing the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems that existing topsoil resource protection devices for reducing soil resource loss have, such as simple ground nail structures, insufficient anchoring force in poured concrete or loose soil, and easy loosening leading to protection failure, this utility model aims to provide a topsoil resource protection device with an improved structure that can effectively solve the above problems and reduce soil resource loss.

[0007] This utility model provides a topsoil resource protection device to reduce soil resource loss, including: ground nails, protective nets and pipes; as well as opening and closing mechanisms and fixing mechanisms set on the ground nails.

[0008] The opening and closing mechanism includes a sliding ring that can slide along the ground nail, a connecting block fixed to the sliding ring, and an opening and closing plate that can rotate around the fulcrum.

[0009] Furthermore, the slip ring is slidably sleeved on the outside of the ground nail, one end of the connecting block is connected to the slip ring, and the other end is connected to the upper part of the opening and closing plate. The lower part of the opening and closing plate is pivotally connected to the ground nail through a rotating structure, thus forming a linkage device that can convert the axial sliding of the ground nail into the radial opening of the opening and closing plate.

[0010] Preferably, in order to make the opening action more stable and the force more even, the opening and closing plate is specifically two plates symmetrically arranged with the central axis of the ground nail as the axis of symmetry. These two plates are synchronously driven by the connecting block and open outward together around the same rotation fulcrum.

[0011] Preferably, to optimize the installation process and mechanical performance, the fixing mechanism is positioned above the opening and closing mechanism along the axial direction of the ground nail. This arrangement ensures that when the ground nail is driven in, the upper fixing mechanism first interacts with the soil to create self-locking stability, providing a solid foundation for the subsequent anchoring operation of the lower opening and closing mechanism.

[0012] Preferably, in order to facilitate the installation and fixing of internal components, the body of the ground nail is designed as a hollow tubular structure, and the rotation fulcrum of the opening and closing mechanism, namely the first fixed column, can pass through the lower part of the ground nail laterally and be firmly fixed, providing a solid internal support for the rotation of the opening and closing plate.

[0013] Preferably, in order to enhance the self-locking effect and reliability of the fixing mechanism, the third slider is provided with a groove. The groove is a wedge-shaped groove with guiding and limiting functions, and its tilt angle is optimized to generate the maximum lateral clamping force under the minimum axial displacement of the ground nail.

[0014] Preferably, in order to ensure force transmission and positioning between the fixing mechanism and the pipeline, the bottom surface of the fixing plate in the fixing mechanism abuts against the upper end surface of the pipeline to form a stable support surface and effectively transmit the load.

[0015] Preferably, in order to distribute the clamping force of the fixing mechanism evenly on both sides of the ground nail, the fixing mechanism includes two sets of third sliders and second fixing columns symmetrically arranged on both sides of the ground nail. These two sets of structures are driven by the same fixing block and connected by the same second spring, ensuring the synchronicity and stability of the clamping action.

[0016] Preferably, in order to facilitate the operation of the opening and closing mechanism by external tools, the outer peripheral wall of the slip ring is provided with a drive structure for applying axial force to the external tool. The drive structure can be an annular groove or a flange, which facilitates the tool's engagement or contact.

[0017] Preferably, the ground nails are inserted into the mesh of the protective net, and the protective net is covered and firmly fixed to the topsoil over a large area by the ground nails and their auxiliary mechanisms to prevent displacement.

[0018] Preferably, the third fixing post of the fixing mechanism passes through the pipe and connects to the soil or rock layer below. The pipe not only serves as a guide and protector, but also provides a convenient channel for subsequent pouring of concrete around the ground nail.

[0019] This utility model has the following beneficial effects: 1. This utility model solves the problem that existing ground nails have simple structures, insufficient anchoring force due to small contact area after concrete is poured, and are easily pulled out by setting an opening and closing mechanism that can be driven outward after the ground nail is inserted underground. It achieves the technical effect of significantly enhancing the mechanical locking force between the ground nail and the solidified concrete, thereby greatly improving its long-term pull-out resistance.

[0020] 2. This utility model solves the problem of poor initial stability and easy shaking or loosening of existing ground nails when they are driven into loose soil by setting a fixing mechanism that uses a wedge structure and spring to generate a self-locking clamping force during the driving process of the ground nail. It achieves the technical effect of making the ground nail firmly bonded to the surrounding soil at the moment of installation, effectively improving the installation stability and immediate load-bearing capacity. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a topsoil resource protection device for reducing soil resource loss proposed in this utility model. Figure 2 This is a schematic diagram of the pipeline structure of a topsoil resource protection device for reducing soil resource loss proposed in this utility model. Figure 3 This is a schematic diagram of the slip ring structure of a topsoil resource protection device for reducing soil resource loss proposed in this utility model; Figure 4 This is a schematic diagram of the fixed block structure of a topsoil resource protection device for reducing soil resource loss proposed in this utility model.

[0022] Legend: 1. Opening and closing mechanism; 101. Slip ring; 102. First slider; 103. Connecting block; 104. Opening and closing plate; 105. Second slider; 106. First fixing post; 107. First spring; 2. Fixing mechanism; 201. Fixing block; 202. Third slider; 203. Second fixing post; 204. Second spring; 205. Fixing plate; 206. Third fixing post; 3. Ground nail; 4. Protective net; 5. Pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0024] Please refer to Figures 1 to 4 This utility model provides a topsoil resource protection device to reduce soil resource loss. It aims to solve the problem that existing ground nails 3 used to fix topsoil have simple structures and limited pull-out resistance in concrete or loose soil, which can easily lead to protection failure.

[0025] like Figure 1 and Figure 2 As shown, the topsoil resource protection device for reducing soil resource loss includes ground nails 3, protective netting 4, pipes 5, opening and closing mechanism 1 set on the ground nails 3, and fixing mechanism 2 set on the ground nails 3. The ground nails 3 are used to pass through the protective netting 4 to fix it to the topsoil. The opening and closing mechanism 1 and the fixing mechanism 2 are used to enhance the anchoring force and stability of the ground nails 3, respectively.

[0026] Specifically, the opening and closing mechanism 1 is used to open after the ground nail 3 is inserted into the ground to increase its anchoring area after concrete pouring. The opening and closing mechanism 1 includes a first slider 102, a first spring 107, a slip ring 101, a connecting block 103, an opening and closing plate 104, a second slider 105, and a first fixing post 106. The first slider 102 is slidably connected to a groove opened in the side wall of the ground nail 3. The two ends of the first spring 107 are respectively connected to the first slider 102 and the ground nail 3 to provide a restoring force. The slip ring 101 is slidably sleeved on the outside of the ground nail 3, and the slip ring 101 can abut against and drive the first slider 102 to move along the axial direction of the ground nail 3. One end of the connecting block 103 is fixedly connected to the slip ring 101, and the upper part of the opening and closing plate 104 is fixedly connected to the other end of the connecting block 103. The second slider 105 is fixedly connected to the outside of the opening and closing plate 104, and the first fixing post 106 is horizontally fixed to the inside of the ground nail 3. The second slider 105 is rotatably connected to the first fixing post 106, thereby providing a fulcrum for the opening and closing plate 104 to rotate.

[0027] Specifically, the fixing mechanism 2 is used to generate self-locking during the driving of the ground nail 3, thereby enhancing the bonding stability between the ground nail 3 and the soil. The fixing mechanism 2 includes a fixing block 201, a third slider 202, a second fixing post 203, a second spring 204, a fixing plate 205, and a third fixing post 206. The fixing block 201 is fixedly connected to the ground nail 3. The third slider 202 has a groove for the fixing block 201 to slide into, and the third slider 202 is rotatably connected to the second fixing post 203. The two ends of the second spring 204 are fixedly connected between the two symmetrically arranged third sliders 202 to provide clamping force. The fixing plate 205 is fixedly connected to the second fixing post 203 to support and fix the second fixing post 203. The third fixing post 206 is fixedly connected to the fixing plate 205, and the third fixing post 206 passes through the pipe 5 to connect the fixing mechanism 2 to the soil.

[0028] To solve the above-mentioned technical problems, the opening and closing mechanism 1 and the fixing mechanism 2, through their specific structural cooperation with the ground nail 3, respectively achieve the expansion of the anchoring area and the self-locking stability during the installation process.

[0029] Please refer to the following carefully. Figure 3 and Figure 4 When the slip ring 101 of the opening and closing mechanism 1 slides downward along the axial direction of the ground nail 3 under the action of external force, its lower end face abuts against and pushes the first slider 102 to slide synchronously. The movement of the first slider 102 is guided and limited by the groove opened on the side wall of the ground nail 3. This process will stretch the first spring 107 connected between the first slider 102 and the ground nail 3. The slip ring 101 transmits the downward movement to the upper part of the opening and closing plate 104 through the fixedly connected connecting block 103. Since the lower part of the opening and closing plate 104 is rotatably connected to the first fixed post 106 that is laterally fixed inside the ground nail 3 through the second slider 105, the downward movement of the connecting block 103 forces the opening and closing plate 104 to rotate outward with the first fixed post 106 as the fulcrum. This combination structure of connecting rod-slider-rotating shaft converts the simple axial sliding action into a reliable radial expansion action, thereby effectively increasing the anchor head size of the ground nail 3 in the concrete.

[0030] The fixing block 201 of the fixing mechanism 2 serves as an auxiliary structure of the ground nail 3. When the ground nail 3 is driven downwards, the fixing block 201 enters and slides into a groove on the third slider 202. This groove is preferably a wedge-shaped groove with guiding and limiting functions. Due to the wedge-shaped geometry of the groove, the entry of the fixing block 201 generates a lateral thrust on the third slider 202, forcing the third slider 202 to rotate outwards around the second fixing post 203 rotatably connected to it. This rotation compresses the second spring 204 connected between the two symmetrically arranged third sliders 202. The reaction force generated by the second spring 204 acts in the opposite direction on the fixing block 201 through the third slider 202, forming a strong clamping force. This structure of wedge-shaped groove and spring cooperation ensures that the ground nail 3 produces an immediate self-locking effect during installation, improving its initial stability in the soil.

[0031] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, in order to make the opening and closing action more stable and symmetrical, the opening and closing plate 104 consists of two plates symmetrically arranged with the central axis of the ground nail 3 as the axis of symmetry. These two plates are rotatably connected to the first fixed column 106 through their respective second sliders 105 and are synchronously driven by the connecting block 103.

[0032] As another preferred embodiment, in order to make the device structure layout more reasonable, the fixing mechanism 2 is arranged above the opening and closing mechanism 1 along the axial direction of the ground nail 3. This layout allows the upper fixing mechanism 2 to first interact with the soil to achieve initial stability when the ground nail 3 is installed, and then the lower opening and closing mechanism 1 performs the anchoring operation.

[0033] As a preferred embodiment, in order to enhance the self-locking effect and reliability of the fixing mechanism 2, the groove opened on the third slider 202 is a wedge-shaped groove with guiding and limiting functions. The inclination angle of the wedge-shaped groove is optimized so that it can generate the maximum lateral clamping force with the minimum axial displacement.

[0034] As a preferred embodiment, in order to ensure the force transmission and positioning between the fixing mechanism 2 and the pipe 5, the bottom surface of the fixing plate 205 abuts against the upper end surface of the pipe 5 to form a stable support surface.

[0035] In a preferred embodiment, in order to distribute the clamping force of the fixing mechanism 2 evenly, the fixing mechanism 2 includes two sets of third sliders 202 and second fixing posts 203 symmetrically arranged on both sides of the ground nail 3. These two sets of structures are driven by the same fixing block 201 and connected by the same second spring 204.

[0036] In a preferred embodiment, to facilitate operation of the opening and closing mechanism 1 by external tools, the outer peripheral wall of the slip ring 101 is provided with a drive structure, such as an annular groove or flange, for cooperating with external tools to apply axial force.

[0037] In a preferred embodiment, the device also includes a protective net 4, with ground nails 3 inserted through the mesh of the protective net 4 to cover and fix the protective net 4 over a large area onto the topsoil.

[0038] In a preferred embodiment, the device also includes a pipe 5, through which a third fixing column 206 passes and connects to the soil or rock below. The pipe 5 also provides a channel for subsequent concrete pouring.

[0039] Working principle: During installation, the pipe 5 is first pre-laid on the ground surface. Then, the ground nail 3 is driven into the soil through the mesh of the protective net 4, aligned with the pipe 5. During the driving process, the fixing block 201 fixed to the ground nail 3 is squeezed into the wedge-shaped groove of the third slider 202, forcing the third sliders 202 on both sides to rotate outward around the second fixing post 203 and compress the second spring 204. The reaction force of the second spring 204 generates a strong clamping force on the fixing block 201 through the third slider 202, thereby making the ground nail 3 instantly self-locking with the surrounding soil, improving the stability of the initial installation. At the same time, the third fixing post 206 of the fixing mechanism 2 passes through the pipe 5 and connects to the deep soil, further enhancing the overall stability.

[0040] After the ground nail 3 is installed in place, use an external tool to drive the slip ring 101 of the opening and closing mechanism 1 downwards. The slip ring 101 drives the first slider 102 to slide in the groove of the ground nail 3, and pushes the opening and closing plate 104 downwards through the connecting block 103. Since the opening and closing plate 104 is rotatably connected to the fixed first fixing post 106 through the second slider 105, the downward thrust causes the opening and closing plate 104 to rotate outwards and open with the first fixing post 106 as the fulcrum. When the external tool is removed, under the reset pull provided by the first spring 107, the first slider 102 and the slip ring 101 will automatically return to their original positions.

[0041] Finally, concrete is poured around the ground nail 3 through pipe 5. The opening and closing plate 104 forms an enlarged anchor head, which greatly increases the contact area and mechanical locking force between the ground nail 3 and the solidified concrete, thereby significantly improving the pull-out resistance of the ground nail 3. This effectively solves the problem of insufficient anchoring force of the ground nail 3 in the prior art and achieves long-term protection of topsoil resources.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A topsoil resource protection device for reducing soil resource loss, comprising ground nails (3); Its features are, The device further includes: an opening and closing mechanism (1) disposed on the ground nail (3), the opening and closing mechanism (1) including a slip ring (101) slidably connected to the ground nail (3), and an opening and closing plate (104) driven by the slip ring (101) and rotatably opening around the fulcrum at the lower part of the ground nail (3). And a fixing mechanism (2) provided on the ground nail (3), the fixing mechanism (2) including a fixing block (201) fixedly connected to the ground nail (3), and a third slider (202) rotatably connected to the second fixing column (203) and subjected to the self-locking effect by the pressing of the fixing block (201).

2. The topsoil resource protection device for reducing soil resource loss according to claim 1, characterized in that, The opening and closing mechanism (1) further includes: a first slider (102) slidably connected to the ground nail (3), a slip ring (101) slidably sleeved on the outside of the ground nail (3) and abutting the first slider (102), and a connecting block (103) fixedly connected between the slip ring (101) and the opening and closing plate (104).

3. The topsoil resource protection device for reducing soil resource loss according to claim 2, characterized in that, The opening and closing mechanism (1) further includes: a second slider (105) which is fixedly connected to the outside of the opening and closing plate (104), and a first fixing post (106) which is laterally arranged inside the second slider (105). The second slider (105) is rotatably connected to the first fixing post (106), and the first fixing post (106) constitutes the fulcrum.

4. The topsoil resource protection device for reducing soil resource loss according to claim 2, characterized in that, The opening and closing mechanism (1) also includes a first spring (107), the two ends of which are connected to the first slider (102) and the ground nail (3), respectively.

5. The topsoil resource protection device for reducing soil resource loss according to claim 1, characterized in that, The fixing mechanism (2) also includes a second spring (204), the two ends of which are fixedly connected between two symmetrically arranged third sliders (202).

6. The topsoil resource protection device for reducing soil resource loss according to claim 1 or 5, characterized in that, The fixing mechanism (2) further includes a fixing plate (205), which is fixedly connected to the second fixing column (203).

7. The topsoil resource protection device for reducing soil resource loss according to claim 6, characterized in that, The fixing mechanism (2) also includes a third fixing column (206), which is fixedly connected to the fixing plate (205).

8. The topsoil resource protection device for reducing soil resource loss according to claim 1, characterized in that, The device also includes a protective net (4), through which the ground nail (3) is inserted.

9. The topsoil resource protection device for reducing soil resource loss according to claim 7, characterized in that, The device also includes a pipe (5), through which the third fixing column (206) passes.

10. The topsoil resource protection device for reducing soil resource loss according to claim 1, characterized in that, The fixed block (201) is slidably fitted into the groove opened on the third slider (202).

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