Mine self-connection combined net

Abstract

This utility model relates to the technical field of mining roadway support devices, specifically a mine-use self-connecting composite mesh, including a steel woven mesh and a chain link mesh. The chain link mesh is equipped with multiple expansion locking components for anchoring to the tunnel wall. The expansion locking components are connected to the chain link mesh via universal adjustment components, which are fixedly installed on the chain link mesh. Each universal adjustment component has a self-locking component, and the expansion locking components have mounting holes for anchoring to the tunnel wall and control components for locking the universal adjustment components with the self-locking components. The advantages are: firstly, the self-locking components lock the universal adjustment angle, and the expansion locking components anchor to the tunnel wall, creating a dual locking mechanism that ensures no loosening or displacement between the composite mesh and the tunnel wall, preventing the protective mesh from falling off and failing; secondly, the combination of the steel woven mesh and the chain link mesh can resist high-pressure deformation of the surrounding rock in deep roadways and the impact of large pieces of ore, while also intercepting gravel and fine materials in all directions.

Description

Technical Field

[0001] This utility model relates to the technical field of mining roadway support devices, and in particular to a mine self-connected combined network. Background Technology

[0002] As mining extends deeper, the requirements for the quality and performance of metal mesh in tunnel surrounding rock engineering become more stringent. Reinforcing steel mesh and chain link mesh are widely used in underground engineering. Currently, the main support method adopted in metal mines is the combination of anchor bolts and metal mesh.

[0003] A flexible full-support device and its usage method for mining, disclosed in Chinese Patent Publication No. CN117328905A, uses foldable galvanized hexagonal chain link mesh for single-sheet full-section support construction. The galvanized hexagonal chain link mesh is easy to fold and unfold, allowing workers to operate under arched supports, avoiding exposure to exposed surrounding rock, thus demonstrating significant applicability. However, based on existing support devices and technologies in related fields, firstly, steel mesh or chain link mesh needs to be perpendicular or at a fixed angle to the tunnel wall during installation. However, mine walls are often irregular curved surfaces, and traditional fixing methods cannot adjust the angle. Forced installation can easily cause localized stress concentration on the mesh, shortening its service life. Secondly, while steel mesh possesses excellent rigidity and load-bearing capacity, its rigid structure makes transportation difficult and installation efficiency significantly reduced. While chain link mesh, with its excellent flexibility, can be rolled up for transport, its insufficient load-bearing capacity makes it unsuitable for large-area support tasks in deep tunnels. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a self-connected network for mining.

[0005] The objective of this utility model is achieved through the following technical solution: a mine self-connecting composite mesh, comprising a steel woven mesh and a chain link mesh, wherein the steel woven mesh is installed on the chain link mesh via hooks and buckles, and the chain link mesh is provided with multiple expansion locking components for anchoring to the tunnel wall, the expansion locking components being connected to the chain link mesh via universal adjustment components, the universal adjustment components being fixedly installed on the chain link mesh, the universal adjustment components being provided with self-locking components, and the expansion locking components being provided with mounting holes for anchoring to the tunnel wall and control components for locking the universal adjustment components with the self-locking components.

[0006] Preferably, the universal adjustment assembly includes a fixing member fixedly installed on the chain link fence, and a movable member is movably connected inside the fixing member.

[0007] Preferably, the expansion locking assembly includes a fixed rod fixedly installed on the outer surface of the movable part, an expansion tube fixedly provided at one end of the fixed rod away from the movable part, a cone head movably connected at one end of the expansion tube away from the fixed rod, and a first sliding rod fixedly installed at the center of the cone head, the first sliding rod slidingly engaging with the fixed rod.

[0008] Preferably, the self-locking component includes a biting member, on which a second sliding rod is fixedly provided, and the second sliding rod slides in cooperation with the movable member.

[0009] Preferably, the engaging member and the movable member are combined to form a sphere, the fixed member has a spherical receiving groove inside, the inner wall of the spherical receiving groove is fixedly provided with a spherical flexible layer, and the outer surface of the engaging member is fixedly provided with a number of protrusions.

[0010] Preferably, a groove is provided at the center of both the fixed rod and the movable part, and the cross-sectional shape of the first sliding rod and the second sliding rod is hexagonal, and both the first sliding rod and the second sliding rod slide in cooperation with the groove.

[0011] Preferably, the control component includes a lead screw rotatably disposed at the center of the slide groove, and the first sliding rod and the second sliding rod are each provided with threaded holes adapted to the lead screw at positions corresponding to the lead screw. A worm gear is fixedly disposed between the first sliding rod and the second sliding rod, and a worm is engaged on the outer surface of the worm gear.

[0012] Preferably, the fixed rod has a movable groove corresponding to the position of the worm gear, and fixed plates are fixedly provided at both ends of the fixed rod. A spline shaft is inserted into the center of the worm gear, and the spline shaft is rotatably connected to the two fixed plates. An adjusting block is fixedly provided on the outside of one of the fixed plates.

[0013] Beneficial effects:

[0014] This mine-use self-connected combined mesh utilizes a combination of steel woven mesh, chain link mesh, expansion locking components, universal adjustment components, self-locking components, and control components. Firstly, the self-locking components lock the universal adjustment angle, while the expansion locking components anchor the tunnel wall. This dual locking mechanism ensures that there is no loosening or displacement between the combined mesh and the tunnel wall, maintaining a stable connection even under conditions of surrounding rock deformation or vibration, thus preventing the protective mesh from falling off and failing. Secondly, the combination of steel woven mesh and chain link mesh can resist the high-pressure deformation of the surrounding rock in deep tunnels and the impact of large pieces of ore, while also intercepting gravel and fine materials in all directions. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the steel braided mesh of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the universal adjustment component and the expansion locking component of this utility model;

[0019] Figure 4 This is a schematic diagram of the first working state of the expansion locking component of this utility model;

[0020] Figure 5 This is a schematic diagram of the second working state of the expansion locking component of this utility model;

[0021] Figure 6 This is a schematic diagram showing the disassembled structure of the worm gear and spline shaft of this utility model;

[0022] Figure 7 This is a diagram showing the state of the expansion tube before the cone-shaped head of this utility model causes radial expansion.

[0023] Figure 8 This is a diagram showing the state of the expansion tube after the cone-shaped head of this utility model causes radial expansion.

[0024] In the diagram: 1. Rebar mesh; 2. Chain link fence; 3. Hook; 4. Buckle; 5. Expansion locking assembly; 501. Fixed rod; 5011. Movable groove; 5012. Fixed piece; 502. Expansion tube; 503. Cone; 504. First sliding rod; 6. Universal adjustment assembly; 601. Fixing component; 6011. Spherical receiving groove; 6012. Spherical flexible layer; 602. Movable component; 7. Self-locking assembly; 701. Engaging component; 702. Second sliding rod; 8. Control assembly; 801. Lead screw; 802. Worm gear; 803. Worm; 8031. Splined shaft; 8032. Adjusting block; 9. Slide groove. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0027] like Figures 1 to 8 As shown, a mine self-connecting mesh includes a steel braided mesh 1 and a chain link mesh 2. The steel braided mesh 1 is installed on the chain link mesh 2 via hooks 3 and buckles 4. The chain link mesh 2 is provided with multiple expansion locking components 5 for anchoring to the tunnel wall. The expansion locking components 5 are connected to the chain link mesh 2 via universal adjustment components 6. The universal adjustment components 6 are fixedly installed on the chain link mesh 2. The universal adjustment components 6 are provided with self-locking components 7. The expansion locking components 5 are provided with mounting holes for anchoring to the tunnel wall and control components 8 for locking the universal adjustment components 6 with the self-locking components 7.

[0028] like Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, the universal adjustment assembly 6 includes a fixing member 601 fixedly installed on the chain link fence 2. A movable member 602 is movably connected inside the fixing member 601. The expansion locking assembly 5 includes a fixing rod 501 fixedly installed on the outer surface of the movable member 602. An expansion tube 502 is fixedly provided at one end of the fixing rod 501 away from the movable member 602. A cone head 503 is movably connected at the other end of the expansion tube 502 away from the fixing rod 501. A first sliding rod 504 is fixedly installed at the center of the cone head 503. The first sliding rod 504 slides and engages with the fixing rod 501. The universal adjustment assembly 5 can achieve angle adjustment within a 360° range. Combined with the anchoring effect of the expansion locking assembly 5 on the mounting hole, it can flexibly adapt to the complex structure of the uneven and variable angle of the inner wall of the mine, solving the problem of large installation gaps and unstable fixation caused by the irregularity of the mine wall in traditional metal mesh.

[0029] like Figure 7 and Figure 8As shown, the self-locking assembly 7 includes an engaging member 701, on which a second sliding rod 702 is fixedly mounted. The second sliding rod 702 slides in cooperation with the movable member 602. The engaging member 701 and the movable member 602 combine to form a sphere. A spherical receiving groove 6011 is formed inside the fixed member 601, and a spherical flexible layer 6012 is fixedly mounted on the inner wall of the spherical receiving groove 6011. Several protrusions are fixedly mounted on the outer surface of the engaging member 701. Sliding grooves 9 are formed at the center of both the fixed rod 501 and the movable member 602. The first sliding rod 504 and the second sliding rod 702 both have hexagonal cross-sections. The first sliding rod 504 and the second sliding rod 702 are both slidably engaged with the sliding groove 9. When the first sliding rod 504 and the second sliding rod 702 slide, firstly, the cone head 503 can cause the expansion tube 502 to expand radially, thereby anchoring it in the installation hole drilled on the hole wall. Secondly, the engaging member 701 will squeeze the spherical flexible layer 6012, thereby engaging the protrusion with the spherical flexible layer 6012 and locking the position of the movable member 602.

[0030] like Figures 6 to 8 As shown, the control assembly 8 includes a lead screw 801 rotatably disposed at the center of the slide groove 9. The first sliding rod 504 and the second sliding rod 702 each have threaded holes corresponding to the position of the lead screw 801. A worm gear 802 is fixedly disposed between the lead screw 801 and the first sliding rod 504 and the second sliding rod 702, and a worm 803 meshes with the outer surface of the worm gear 802. A movable groove 5011 is formed on the fixed rod 501 corresponding to the position of the worm gear 802, and the fixed rod 501 is located within the worm 803. Both ends are fixed with fixing plates 5012. A spline shaft 8031 ​​is inserted into the center of the worm gear 803. The spline shaft 8031 ​​is rotatably connected to the two fixing plates 5012. An adjusting block 8032 is fixed on the outside of one of the fixing plates 5012. The cross-sectional shape of the adjusting block 8032 is hexagonal. Therefore, in use, the spline shaft 8031 ​​and the worm gear 803 can be rotated manually or by turning the spline shaft 8031 ​​and the worm gear 803 with a tool.

[0031] The expansion tube 502 in this application can be replaced individually. Therefore, when the expansion tube 502 is deformed, the deformed expansion tube 502 can be removed and replaced with an undeformed expansion tube 502. The expansion locking component 5, universal adjustment component 6, self-locking component 7 and control component 8 can still be used, effectively reducing the cost of use.

[0032] The work process is as follows:

[0033] S1: As Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, when installing the chain link mesh 2, installation holes can be pre-drilled on the tunnel wall. Then, by using the universal adjustment component 6, the expansion locking component 5 can support 360° rotation and tilt adjustment, adapting to the uneven rock wall of the mine, avoiding the installation gap caused by the angle deviation of traditional rigid support, and reducing secondary processing procedures such as on-site cutting and grinding.

[0034] S2: As Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, after alignment, the cone 503, expansion tube 502 and part of the fixing rod 501 are inserted into the mounting hole;

[0035] S3: As Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, when the cone 503, expansion tube 502 and part of the fixing rod 501 are inserted into the mounting hole, the spline shaft 8031 ​​and worm 803 are rotated by the adjusting block 8032, so that the worm 803 drives the worm wheel 802 to rotate, and then the worm wheel 802 controls the screw 801 to rotate, so that the first sliding rod 504 and the second sliding rod 702 both slide in the direction of the chain link mesh 2;

[0036] S4: As Figure 7 and Figure 8 As shown, when the first sliding rod 504 and the second sliding rod 702 slide, firstly, the cone head 503 can cause the expansion tube 502 to expand radially, thereby anchoring it in the installation hole drilled on the hole wall; secondly, the engaging member 701 will squeeze the spherical flexible layer 6012, thereby engaging the protrusion with the spherical flexible layer 6012 and locking the position of the movable member 602.

[0037] S5: In summary, by locking the universal adjustment angle 6 with the self-locking component 7 and anchoring the tunnel wall with the expansion locking component 5, the dual locking mechanism ensures that there is no loosening or displacement between the combined net and the tunnel wall. Even in the environment of surrounding rock deformation or vibration, it can still maintain a stable connection and avoid the protective net from falling off and failing.

[0038] S6: As Figure 1 and Figure 2As shown, after the chain link mesh 2 is installed, the steel woven mesh 1 is installed on the chain link mesh 2 using hooks 3 and buckles 4. The combination of steel woven mesh 1 and chain link mesh 2 retains the high rigidity and load-bearing capacity of the steel mesh, which can resist the high pressure deformation of the surrounding rock in deep tunnels and the impact of large pieces of ore and rock; at the same time, the diamond mesh structure and flexibility of chain link mesh 2 can achieve all-round interception of gravel and fine materials, avoiding material leakage. The two work together to form a rigid and flexible protection system, which effectively solves the problems of high material leakage risk of a single steel mesh and insufficient load-bearing capacity of a single chain link mesh 2, providing a more reliable safety barrier for the working face and transportation channels.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A self-connected combined network for mining, characterized in that: The device includes a steel braided mesh (1) and a chain link fence (2). The steel braided mesh (1) is installed on the chain link fence (2) by hooks (3) and buckles (4). The chain link fence (2) is provided with a plurality of expansion locking components (5) for anchoring to the tunnel wall. The expansion locking components (5) are connected to the chain link fence (2) by universal adjustment components (6). The universal adjustment components (6) are fixedly installed on the chain link fence (2). The universal adjustment components (6) are provided with self-locking components (7). The expansion locking components (5) are provided with mounting holes for anchoring to the tunnel wall and control components (8) for locking the universal adjustment components (6) with the self-locking components (7).

2. The mine self-connected combined network according to claim 1, characterized in that: The universal adjustment assembly (6) includes a fastener (601) fixedly installed on the chain link fence (2), and a movable part (602) is movably connected inside the fastener (601).

3. A mine self-connected combined network according to claim 2, characterized in that: The expansion locking assembly (5) includes a fixing rod (501) fixedly installed on the outer surface of the movable part (602). An expansion tube (502) is fixedly provided at one end of the fixing rod (501) away from the movable part (602). A cone head (503) is movably connected at one end of the expansion tube (502) away from the fixing rod (501). A first sliding rod (504) is fixedly installed at the center of the cone head (503). The first sliding rod (504) slides with the fixing rod (501).

4. A mine self-connected combined network according to claim 3, characterized in that: The self-locking assembly (7) includes a biting member (701), on which a second sliding rod (702) is fixedly provided, and the second sliding rod (702) slides in cooperation with the movable member (602).

5. A mine self-connected combined network according to claim 4, characterized in that: The engaging member (701) and the movable member (602) are combined to form a sphere. The fixed member (601) has a spherical receiving groove (6011) inside. The inner wall of the spherical receiving groove (6011) is fixedly provided with a spherical flexible layer (6012). The outer surface of the engaging member (701) is fixedly provided with a number of protrusions.

6. A mine self-connected combined network according to claim 5, characterized in that: Both the fixed rod (501) and the movable part (602) have a sliding groove (9) at their center. The cross-sectional shape of the first sliding rod (504) and the second sliding rod (702) is hexagonal. Both the first sliding rod (504) and the second sliding rod (702) slide in cooperation with the sliding groove (9).

7. A mine self-connected combined network according to claim 6, characterized in that: The control component (8) includes a lead screw (801) rotatably disposed at the center of the slide groove (9). The first sliding rod (504) and the second sliding rod (702) are each provided with threaded holes that are adapted to the position of the lead screw (801). A worm gear (802) is fixedly disposed between the first sliding rod (504) and the second sliding rod (702) on the lead screw (801). A worm (803) is engaged on the outer surface of the worm gear (802).

8. A mine self-connected combined network according to claim 7, characterized in that: The fixed rod (501) has a movable groove (5011) corresponding to the position of the worm gear (802). The fixed rod (501) has fixed plates (5012) fixed at both ends of the worm (803). A spline shaft (8031) is inserted into the center of the worm (803). The spline shaft (8031) is rotatably connected to the two fixed plates (5012). An adjusting block (8032) is fixed on the outside of one of the fixed plates (5012) of the spline shaft (8031).

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