Steel mesh laying arm

Abstract

A steel mesh laying arm comprises a telescopic pipe set which comprises a starting end telescopic pipe and a tail end telescopic pipe, the starting end telescopic pipe and the tail end telescopic pipe are coaxially connected, and the starting end telescopic pipe is used for being connected with a chassis. The mounting seat is connected to the end part of the tail-end telescopic pipe through the cross universal joint and is connected with the tail-end telescopic pipe through the cross universal joint; the two adjacent sides of the outer wall of the tail end telescopic pipe are each provided with a swing hydraulic cylinder, the end of a shell of each swing hydraulic cylinder is in spherical hinge connection with the outer wall of the tail end telescopic pipe, and the end of a movable rod of each swing hydraulic cylinder is in spherical hinge connection with the outer wall of the mounting base. When the axis of the mounting base is coaxial with the axis of the tail end telescopic pipe, the connecting lines between the axes of the two swing hydraulic cylinders and the axis of the tail end telescopic pipe are perpendicular to each other, and the axes of the two swing hydraulic cylinders perpendicularly intersect with the two rotating axes of the cross universal joint respectively. The clamping claw is arranged at the front end of the mounting base and used for clamping the steel mesh. According to the scheme, the labor intensity of workers can be effectively reduced, and the laying efficiency of the steel mesh is improved.

Description

Technical Field

[0001] This utility model belongs to the field of special mesh laying machinery for tunnel and slope construction, and particularly relates to a steel mesh laying arm. Background Technology

[0002] In tunnel wall reinforcement and slope protection construction, steel mesh is typically laid to improve the structural strength of the rock wall or slope. Currently, the steel mesh is mainly laid manually using scaffolding or aerial work platforms. This method is not only inefficient but also physically demanding and poses certain safety hazards. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a steel mesh laying arm to assist in steel mesh laying, which can effectively reduce the labor intensity of workers and improve the laying efficiency of steel mesh.

[0004] In order to achieve the purpose of this utility model, the following solution is proposed:

[0005] A steel mesh laying arm includes: a telescopic pipe assembly, a mounting base, and a pair of clamping claws.

[0006] The telescopic tube assembly includes a starting telescopic tube and an ending telescopic tube. The starting telescopic tube and the ending telescopic tube are coaxially connected. The starting telescopic tube is used to connect to the chassis.

[0007] The mounting base is connected to the end of the end telescopic tube via a universal joint. The outer wall of the end telescopic tube is provided with a swing hydraulic cylinder on each of its adjacent sides. The housing end of the swing hydraulic cylinder is connected to the outer wall of the end telescopic tube by a ball joint, and the movable rod end of the swing hydraulic cylinder is also connected to the outer wall of the mounting base by a ball joint.

[0008] When the axis of the mounting base is coaxial with the axis of the end telescopic tube, the line connecting the axes of the two swing hydraulic cylinders and the axis of the end telescopic tube is perpendicular to each other, and the axes of the two swing hydraulic cylinders intersect perpendicularly with the two rotation axes of the universal joint.

[0009] The clamping claws are located at the front end of the mounting base and are used to clamp the steel mesh.

[0010] The beneficial effects of this utility model are as follows: the steel mesh laying arm designed in this scheme can be installed on the chassis for use, which can assist in the steel mesh laying construction, help improve the laying efficiency of steel mesh, and save labor. Attached Figure Description

[0011] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0012] Figure 1A schematic diagram of the overall structure of this application is shown.

[0013] Figure 2 A schematic diagram of the clamping claw's mounting structure is shown.

[0014] Figure 3 A schematic diagram of the structure of this application is shown when the mounting base swings at a certain angle.

[0015] Figure 4 A schematic diagram of the front end of this application is shown when the steel mesh is gripped.

[0016] Figure 5 A schematic diagram of the state of the rear end of this application is shown when the steel mesh is clamped.

[0017] The markings in the diagram are: telescopic tube assembly-1, starting telescopic tube-11, ending telescopic tube-12, mounting base-2, side plate-21, cylindrical roller-22, universal joint-3, swing hydraulic cylinder-4, clamping claw-5, spring plate-51, hook-52, telescopic device-6, ball joint seat-7. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1 to 5 As shown, a steel mesh laying arm includes: a telescopic pipe assembly 1, a mounting base 2, and a pair of clamping claws 5.

[0020] Specifically, the telescopic tube assembly 1 includes a starting telescopic tube 11 and an ending telescopic tube 12, which are coaxially connected. More specifically, the ending telescopic tube 12 can be directly inserted into the starting telescopic tube 11 to form a two-section telescopic structure telescopic tube assembly 1. Alternatively, multiple coaxially connected intermediate telescopic tubes can be installed between the starting telescopic tube 11 and the ending telescopic tube 12 to form a multi-section telescopic tube assembly 1. In practical use, the starting telescopic tube 11 is used to connect to the chassis, such as a tank chassis or a car chassis. Specifically, like conventional lifting equipment, the construction machinery is equipped with a turntable and a pitch hydraulic device to control the rotation and pitch angle of the telescopic tube assembly 1. The telescopic tubes are controlled by hydraulic cylinders to achieve the purpose of telescopic extension and retraction.

[0021] Specifically, such as Figure 1 , Figures 3 to 5As shown, the mounting base 2 is connected to the end of the end telescopic tube 12 via a universal joint 3. Through the connection of the universal joint 3, the mounting base 2 can have two mutually perpendicular swing degrees relative to the axis of the end telescopic tube 12. A swing hydraulic cylinder 4 is provided on each of the adjacent sides of the outer wall of the end telescopic tube 12. The housing end of the swing hydraulic cylinder 4 is connected to the outer wall of the end telescopic tube 12 by a ball joint, and the movable rod end of the swing hydraulic cylinder 4 is also connected to the outer wall of the mounting base 2 by a ball joint.

[0022] Specifically, such as Figure 1 As shown, when the axis of the mounting base 2 is coaxial with the axis of the end telescopic tube 12, the line connecting the axes of the two swing hydraulic cylinders 4 and the axis of the end telescopic tube 12 is perpendicular to each other, and the axes of the two swing hydraulic cylinders 4 intersect perpendicularly with the two rotation axes of the universal joint 3 respectively. In this way, the mounting base 2 can be controlled to swing in two mutually perpendicular directions by the two swing hydraulic cylinders 4.

[0023] Specifically, such as Figures 1 to 5 As shown, a pair of clamping claws 5 are located at the front end of the mounting base 2 for clamping the steel mesh.

[0024] During the steel mesh laying process, the clamping claw 5 is used to grab the steel mesh, and then the installation base 2 is moved to the laying position through the telescopic tube assembly 1. Then, the angle of the steel mesh is adjusted by controlling the swing hydraulic cylinder 4 so that the steel mesh fits against the inner wall or slope of the tunnel. Then, the workers can fix the steel mesh with steel wire or steel nails. The steel mesh laying arm can effectively reduce the labor intensity of workers and improve the laying efficiency of steel mesh.

[0025] Specifically, the opening and closing of the clamping claw 5 can be controlled by a cylinder or a motor. For example, the two clamping claws 5 can be set up as a combination structure similar to scissors. One of the clamping claws 5 is fixed, and the other clamping claw 5 is swung by a cylinder or a motor, thereby achieving the purpose of controlling the opening and closing of the clamping claw 5.

[0026] Preferred, such as Figure 1 , Figure 3 As shown, both the starting telescopic tube 11 and the ending telescopic tube 12 are rectangular tube structures, which can not only effectively prevent relative rotation between the starting telescopic tube 11 and the ending telescopic tube 12, but also make it easier to arrange the swing hydraulic cylinder 4.

[0027] Preferred, such as Figure 1 , Figure 3 As shown, both the mounting base 2 and the outer wall of the end telescopic tube 12 are provided with ball joint seats 7, which are used to connect the outer shell and the movable rod of the swing hydraulic cylinder 4, respectively.

[0028] Preferred, such as Figure 2As shown, the mounting base 2 has a U-shaped structure, including two parallel side plates 21. The bottom of the mounting base 2 is used to connect to the universal joint 3. A telescopic device 6 is provided between the two side plates 21. The axis of its telescopic rod is parallel to the axis of the mounting base 2. The ends of the two clamping claws 5 are rotatably connected to the ends of the telescopic rod of the telescopic device 6. The rotation axes of the two clamping claws 5 are parallel to each other and parallel to the two side plates 21. The outer walls of the two clamping claws 5 are in contact with the ends of the two side plates 21 respectively. A spring plate 51 is provided between the two clamping claws 5. When the telescopic rod of the telescopic device 6 extends forward, the spring plate 51 simultaneously opens the two clamping claws 5. When the telescopic rod of the telescopic device 6 retracts backward, the two clamping claws 5 close towards the middle under the limiting action of the side plates 21. At this time, the spring plate 51 is compressed. By controlling the extension and retraction of the telescopic rod of the telescopic device 6, the opening and closing of the two clamping claws 5 can be controlled. This control structure is simple, stable and reliable. Specifically, the telescopic device 6 is a cylinder or a hydraulic cylinder.

[0029] Further preferred, such as Figure 2 As shown, cylindrical rollers 22 are provided at the ends of the side plates 21, and their axes are parallel to the rotation axis of the clamping claws 5. The outer wall of the clamping claws 5 rolls in contact with the cylindrical rollers 22 to reduce friction and improve the smoothness of the movement of the clamping claws 5.

[0030] Preferred, such as Figure 2 As shown, the front end of the clamping claw 5 is provided with a pair of spaced hooks 52 to improve the stability when clamping the steel mesh.

[0031] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A steel mesh laying arm, characterized in that, include: The telescopic tube assembly (1) includes a starting telescopic tube (11) and an ending telescopic tube (12). The starting telescopic tube (11) and the ending telescopic tube (12) are coaxially connected. The starting telescopic tube (11) is used to connect to the chassis. Mounting base (2) is connected to the end of end telescopic tube (12) via universal joint (3). The connection is via universal joint (3). A swing hydraulic cylinder (4) is provided on each of the adjacent sides of the outer wall of the end telescopic tube (12). The end of the housing of the swing hydraulic cylinder (4) is connected to the outer wall of the end telescopic tube (12) by a ball joint. The end of the movable rod of the swing hydraulic cylinder (4) is also connected to the outer wall of the mounting base (2) by a ball joint. When the axis of the mounting base (2) is coaxial with the axis of the end telescopic tube (12), the line connecting the axis of the two swing hydraulic cylinders (4) and the axis of the end telescopic tube (12) is perpendicular to each other, and the axis of the two swing hydraulic cylinders (4) intersects perpendicularly with the two rotation axes of the universal joint (3); A pair of clamping claws (5) are located at the front end of the mounting base (2) for clamping the steel mesh.

2. The steel mesh laying arm according to claim 1, characterized in that, Both the initial telescopic tube (11) and the final telescopic tube (12) are rectangular tube structures.

3. A steel mesh laying arm according to claim 1, characterized in that, Both the mounting base (2) and the outer wall of the end telescopic tube (12) are provided with ball joint seats (7), which are used to connect the outer shell and the movable rod of the swing hydraulic cylinder (4), respectively.

4. A steel mesh laying arm according to claim 1, characterized in that, The mounting base (2) has a U-shaped structure, including two parallel side plates (21). The bottom of the mounting base (2) is used to connect the universal joint (3). A telescopic device (6) is provided between the two side plates (21). The axis of its telescopic rod is parallel to the axis of the mounting base (2). The ends of the two clamping claws (5) are rotatably connected to the ends of the telescopic rod of the telescopic device (6). The rotation axes of the two clamping claws (5) are parallel to each other and are parallel to the two side plates (21). The outer walls of the two clamping claws (5) are in contact with the ends of the two side plates (21). A spring plate (51) is provided between the two clamping claws (5). When the telescopic rod of the telescopic device (6) extends forward, the spring plate (51) opens the two clamping claws (5) at the same time. When the telescopic rod of the telescopic device (6) retracts backward, the two clamping claws (5) close together in the middle under the limiting action of the side plate (21). At this time, the spring plate (51) is compressed.

5. A steel mesh laying arm according to claim 4, characterized in that, The ends of the side plates (21) are provided with cylindrical rollers (22), whose axes are parallel to the rotation axis of the clamping claws (5), and the outer wall of the clamping claws (5) rolls in contact with the cylindrical rollers (22).

6. A steel mesh laying arm according to claim 1, characterized in that, The front end of the gripper (5) is provided with a pair of spaced hooks (52).

Images