A pre-welded mesh structure for rapid assembly

Abstract

The utility model belongs to the technical field of anchor net structure, concretely relates to a pre -welded anchor net structure for quick splicing, including two connecting anchor strips, the circumference of each connecting anchor strip is fixedly connected with two anchor nets, and a double -net integrated connecting mechanism is arranged between the end portions of the two connecting anchor strips. One connecting anchor strip is commonly welded between the original two anchor nets to form a double -net integrated prefabricated part, wherein the middle section of the connecting anchor strip is reliably welded with all intersecting net wires or ribs on the corresponding side edges of the two anchor nets, after welding, each end of the connecting anchor strip has a certain length of free extension, so that during on -site laying, only the double -net integrated structure unit is hoisted or carried in place as a whole, thereby reducing the work load.

Description

Technical Field

[0001] This solution belongs to the field of anchor mesh structures, specifically involving a pre-welded anchor mesh structure for rapid assembly. Background Technology

[0002] Metal anchor mesh (such as steel mesh, wire mesh, W-shaped steel strip mesh, etc.) is often used for surface support in mine roadway support, tunnel initial support, slope protection and other projects. When laying standard anchor mesh (such as 1.2m wide x 2m long) over a large area, multiple anchor meshes need to be connected on site.

[0003] A search revealed a utility model patent with authorization announcement number CN2934576Y, which discloses an anchor mesh for anchoring support. This mesh is made of cold-drawn steel wire spot-welded warp and weft, in sheet form, and is called a mesh sheet. It consists of a top mesh and a side mesh. In the top mesh, the warp wires 1 on both sides of the predetermined anchor hole position are denser and thicker, while the weft wires 2 on both sides or one side of the anchor hole position are also thickened. In the side mesh, the warp wires on both sides of the predetermined anchor hole position are thickened, and the weft wires on both sides or one side of the anchor hole are also thickened.

[0004] Traditional connection methods mainly involve binding adjacent anchor mesh edges or ribs together on-site using wire binding, special connectors, or on-site welding. This method has the following disadvantages: on-site connection operations are cumbersome, time-consuming, and involve a large amount of construction work, especially in confined spaces or harsh environments such as underground mines or tunnels, which affects the overall construction progress. Utility Model Content

[0005] The purpose of this solution is to provide a pre-welded anchor mesh structure for rapid assembly, in order to solve the problems of large construction volume and low efficiency of existing anchor mesh connection methods.

[0006] To achieve the above objectives, this solution provides a pre-welded anchor mesh structure for rapid assembly, comprising two connecting anchor bars. Two anchor meshes are fixedly connected to the circumference of each connecting anchor bar. A double-mesh integrated connection mechanism is provided between the ends of the two connecting anchor bars. The double-mesh integrated connection mechanism includes a bidirectional screw, with a knob fixedly connected to the middle section of the screw. Two connecting blocks are threaded to the outer side of the screw, and the two connecting blocks are symmetrically arranged. A locking pin is fixedly connected to each connecting block, and the locking pin passes through and inserts into the connecting anchor bar. The double-mesh integrated connection mechanism facilitates rapid connection between two identical connecting anchor bars and anchor mesh combinations.

[0007] The principle of this solution is as follows: During factory prefabrication, the connecting anchor strip is placed on the outer side of the adjacent long sides of two anchor meshes. Resistance spot welding or CO2 gas shielded welding is used to weld the connecting anchor strip to all intersections of the longitudinal wires on the long sides of the two anchor meshes, ensuring a strong weld. After welding, a small section at each end of the connecting anchor strip remains unwelded and extends freely. During transportation, these pre-welded "double-mesh integrated" units are bundled or stacked. During on-site installation, the unit is hoisted into place. When longitudinal extension is required, the next "double-mesh integrated" unit is placed adjacent to it; only the two units need to be connected. Align the free ends of adjacent connecting anchor bars, then engage the two locking pins of the double-net integrated connecting mechanism with the two connecting anchor bars respectively. Then, rotate the bidirectional screw by the knob to move the two connecting blocks and locking pins toward each other, thereby locking the two connecting anchor bars and realizing the quick connection of the two "double-net integrated" structural units. Finally, control the locking pin by the lever to insert the locking pin laterally into the knob, and then insert the rubber ball into the connecting block. This can keep the threads between the connecting block and the bidirectional screw tight and not easy to loosen, thus ensuring the stability of the connection between the two "double-net integrated" units.

[0008] The technical advantage of this solution is that by welding a connecting anchor bar between the two existing anchor meshes, a prefabricated double-mesh unit is formed. The middle section of the connecting anchor bar is reliably welded to all intersecting wires or ribs on the corresponding sides of the two anchor meshes. After welding, both ends of the connecting anchor bar extend freely. Thus, during on-site installation, the "double-mesh unit" structure can be hoisted or transported to its position as a whole, thereby reducing the workload.

[0009] By setting up a dual-network integrated connection mechanism between two "dual-network integrated" structural units, the locking pins on the two connecting blocks are engaged with the connecting anchor bars. Then, by rotating the bidirectional screw with a knob, the two connecting blocks and the locking pins move towards each other, thereby locking the two connecting anchor bars. This enables the two "dual-network integrated" structural units to be quickly connected, further reducing the workload.

[0010] Furthermore, a locking pin is slidably connected inside the connecting block. The locking pin is inserted into the knob. A spring is installed inside the connecting block. A lever is fixedly connected to the pin body of the locking pin. The lever passes through the connecting block and is slidably connected to the connecting block. The locking pin can be inserted into the knob, which keeps the threads between the connecting block and the double-ended screw tight and prevents loosening.

[0011] Furthermore, the end of the knob has multiple slots arranged in a circular array along the circumference of the knob, and the locking pin is inserted into the slots. The slots facilitate the insertion of the locking pin into the knob.

[0012] Furthermore, one end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the connecting block. The spring force can act on the locking pin.

[0013] Furthermore, a sliding sleeve is slidably fitted onto the outer side of the lever body, and a connecting rod is fixedly connected to the sliding sleeve. A rubber retaining bead is fixedly connected to the end of the connecting rod, and the rubber retaining bead engages with the connecting block. The sliding sleeve, connecting rod, and rubber retaining bead provide anti-loosening protection for the lever and locking pin.

[0014] Furthermore, a limiting block is fixedly connected to the end of the lever, and the limiting block and the lever are an integral structure. The limiting block prevents the sliding sleeve from falling off the lever. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of a partial structure; Figure 3 This is an embodiment of the present utility model. Figure 1 A partial structural front sectional view; Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.

[0017] The following detailed explanation illustrates the specific implementation methods: The reference numerals in the accompanying drawings include: connecting anchor 1, anchor net 2, double net integrated connection mechanism 3, bidirectional screw 31, knob 32, connecting block 33, locking pin 34, locking pin 35, spring 36, lever 37, sliding sleeve 38, connecting rod 39, rubber ball 310, and limit block 311. Detailed Implementation

[0018] The basic implementation examples are as follows: Figures 1-4 As shown: A pre-welded anchor mesh structure for rapid assembly includes two connecting anchor bars 1, and two anchor meshes 2 are fixedly connected to the circumferential surface of each connecting anchor bar 1.

[0019] like Figure 3 , Figure 4As shown, a double-net integrated connection mechanism 3 is provided between the ends of the two connecting anchor bars 1. This mechanism facilitates quick connection between two identical connecting anchor bars 1 and anchor nets 2. The double-net integrated connection mechanism 3 includes a bidirectional screw 31. A knob 32 is fixedly connected to the middle section of the screw 31. Two connecting blocks 33 are threadedly connected to the outer side of the screw 31, and the two connecting blocks 33 are symmetrically arranged. Each connecting block 33 is fixedly connected with a locking pin 34, which penetrates the connecting anchor bar 1 and is inserted into it. Radial through holes are provided at both ends of the connecting anchor bar 1 for the insertion of the locking pin 34. A locking pin 35 is slidably connected inside the connecting block 33, and the locking pin 35 is inserted into the knob 32. A spring 36 is provided inside the connecting block 33, with one end fixedly connected to the locking pin 35 and the other end fixedly connected to the inner surface of the connecting block 33. The spring force of spring 36 can act on locking pin 35. A lever 37 is fixedly connected to the pin body of locking pin 35. Lever 37 passes through connecting block 33 and is slidably connected to connecting block 33. Locking pin 35 can be inserted into knob 32, thus keeping the threads between connecting block 33 and double-acting screw 31 tight and preventing loosening. Multiple slots are provided at the end of knob 32, and the slots are arranged in a circular array along the circumference of knob 32. Locking pin 35 is inserted into the slots. The slots facilitate the insertion of locking pin 35 into knob 32.

[0020] like Figure 3 , Figure 4 As shown, a sliding sleeve 38 is slidably sleeved on the outer side of the lever 37. A connecting rod 39 is fixedly connected to the sliding sleeve 38, and a rubber ball 310 is fixedly connected to the end of the connecting rod 39. The rubber ball 310 engages with the connecting block 33. The sliding sleeve 38, connecting rod 39, and rubber ball 310 prevent the lever 37 and locking pin 35 from loosening. A limiting block 311 is fixedly connected to the end of the lever 37, and the limiting block 311 and the lever 37 are an integral structure. The limiting block 311 prevents the sliding sleeve 38 from falling off the lever 37.

[0021] The specific implementation process of this utility model is as follows: During factory prefabrication, the connecting anchor 1 is placed on the outer side of the adjacent long sides of the two anchor meshes 2. Resistance spot welding or carbon dioxide gas shielded welding is used to weld the intersections of all longitudinal wires on the long sides of the connecting anchor 1 and the two anchor meshes 2, ensuring a firm weld. After welding, a small section at each end of the connecting anchor 1 remains unwelded and extends freely. During transportation, this pre-welded "double-mesh integrated" unit is rolled or stacked. During on-site installation, the unit is hoisted into place. When longitudinal extension is required, the next "double-mesh integrated" unit is placed adjacent to it. Only the joints of the adjacent connecting anchor 1 on the two units need to be connected. Align the ends, then engage the two locking pins 34 of the double-net integrated connection mechanism 3 with the two connecting anchor bars 1 respectively. Then, rotate the bidirectional screw 31 by the knob 32 to move the two connecting blocks 33 and the locking pins 34 toward each other, thereby locking the two connecting anchor bars 1 and realizing the quick connection of the two "double-net integrated" structural units. Finally, control the locking pin 35 by the lever 37 so that the locking pin 35 is inserted laterally into the knob 32, and then the rubber ball 310 is inserted into the connecting block 33. This can keep the threads between the connecting block 33 and the bidirectional screw 31 tight and not easy to loosen, thereby ensuring the stability of the connection between the two "double-net integrated" units.

[0022] This solution involves welding a connecting anchor 1 between the two existing anchor meshes 2 to form a prefabricated double-mesh unit. The middle section of the connecting anchor 1 is reliably welded to all intersecting wires or ribs on the corresponding sides of the two anchor meshes 2. After welding, both ends of the connecting anchor 1 extend freely. Thus, during on-site installation, the "double-mesh unit" structure can be hoisted or transported to its position as a whole, thereby reducing the workload.

[0023] By setting a double-net integrated connection mechanism 3 between two "double-net integrated" structural units, the locking pins 34 on the two connecting blocks 33 are inserted into the connecting anchor strips 1. Then, by rotating the bidirectional screw 31 through the knob 32, the two connecting blocks 33 and the locking pins 34 move towards each other, thereby locking the two connecting anchor strips 1, realizing the rapid connection of the two "double-net integrated" structural units and further reducing the workload.

[0024] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pre-welded anchor mesh structure for rapid assembly, characterized in that: It includes two connecting anchor bars, each of which has two anchor nets fixedly connected to its circumference. A double-net integrated connection mechanism is provided between the ends of the two connecting anchor bars. The double-net integrated connection mechanism includes a bidirectional screw rod, with a knob fixedly connected to the middle section of the rod. Two connecting blocks are threaded to the outer side of the rod rod, and the two connecting blocks are symmetrically arranged. A locking pin is fixedly connected to each connecting block, and the locking pin passes through the connecting anchor bar and is inserted into the connecting anchor bar.

2. The pre-welded anchor mesh structure for rapid assembly according to claim 1, characterized in that: A locking pin is slidably connected inside the connecting block. The locking pin is inserted into the knob. A spring is provided inside the connecting block. A lever is fixedly connected to the pin body of the locking pin. The lever passes through the connecting block and is slidably connected to the connecting block.

3. A pre-welded anchor mesh structure for rapid assembly according to claim 2, characterized in that: The knob has multiple slots at its end, and these slots are arranged in a circular array along the circumference of the knob. The locking pin is inserted into the slots.

4. A pre-welded anchor mesh structure for rapid assembly according to claim 2, characterized in that: One end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the connecting block.

5. A pre-welded anchor mesh structure for rapid assembly according to claim 2, characterized in that: The lever has a sliding sleeve on its outer side, and a connecting rod is fixedly connected to the sliding sleeve. A rubber bead is fixedly connected to the end of the connecting rod, and the rubber bead engages with the connecting block.

6. A pre-welded anchor mesh structure for rapid assembly according to claim 2, characterized in that: The end of the lever is fixedly connected to a limiting block, and the limiting block and the lever are an integral structure.

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