A rebar grid alignment tool with laser-guided lines

By using a rebar mesh alignment tool with laser-guided lines, and incorporating longitudinal and transverse adjustment components and clamping components, combined with a laser head, precise alignment and stable clamping of the rebar mesh are achieved. This solves the problems of low efficiency and poor stability of existing equipment, and improves construction quality and efficiency.

CN224282038UActive Publication Date: 2026-05-26LINYI ZHENGYUAN CONSTRUCTION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINYI ZHENGYUAN CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-07-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing rebar mesh alignment equipment is inefficient and inaccurate, and the device is prone to shaking and instability during construction, which affects the construction quality.

Method used

A rebar mesh alignment tool with laser-guided lines is used. Through the longitudinal and transverse adjustment components, clamping components, and moving positioning components, combined with a laser head, it can achieve precise alignment and stable clamping of the rebar mesh. The position and angle are adjusted using the laser beam to ensure the accuracy and stability of the alignment.

Benefits of technology

It improves the accuracy and stability of rebar mesh alignment, reduces the workload of operators, increases construction efficiency, and adapts to rebar meshes of different widths, ensuring the flexibility and stability of the alignment process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a rebar mesh alignment tool with laser-guided lines, including a bracket. A longitudinal and transverse adjustment assembly is provided on the inner side of the bracket, and a clamping assembly is installed on the right side of the longitudinal and transverse adjustment assembly. A movable positioning assembly is connected to the upper outer perimeter of the bracket. By setting the longitudinal and transverse adjustment assembly, the guide frame moves up and down under the drive of a hydraulic cylinder, and the transverse rod moves left and right under the drive of an electric cylinder, allowing the clamping assembly to move to different positions, improving alignment accuracy. During alignment, the motor rotates, and two pairs of clamping plates move smoothly and simultaneously towards the center under the drive of a lead screw, pressing the two pairs of clamping plates against both sides of the rebar mesh surface to prevent it from shaking during alignment. Subsequently, a hydraulic cylinder pushes a pressure plate to press against the ground surface around the perimeter, preventing the device from shifting or shaking during rebar mesh alignment, ensuring the stability and accuracy of the alignment process.
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Description

Technical Field

[0001] This utility model relates to the field of rebar mesh alignment technology, and in particular to a rebar mesh alignment tool with laser auxiliary lines. Background Technology

[0002] The placement of the reinforcing mesh is a crucial step in reinforced concrete structures, directly impacting their stability and safety. Reinforcing bar placement typically begins with positioning according to design drawings, followed by planning the arrangement of bars within designated areas, and finally, precise marking on the slab surface. Therefore, a new, efficient marking method is needed to meet the demands for fast, accurate, and economical construction.

[0003] A search revealed that the document with publication number "CN220565732U" mentions "a construction rebar robot, relating to the field of robot technology, including a mounting frame. Slide grooves are provided on both sides of the inner wall of the mounting frame, and a first forward / reverse motor is fixedly installed on one side of the inner wall of each of the two slide grooves." In use, controlling the rotation of two first screws drives the two first sliders to slide longitudinally through threaded engagement. The longitudinal displacement of the two first sliders drives the longitudinal displacement of four hooks through structures such as the mounting grooves. The rotation of a second screw drives the second slider to slide laterally through threaded engagement. The lateral movement of the second slider drives the lateral displacement of the four hooks through structures such as an inverted electric hydraulic cylinder. Using the illumination points of four positioning laser lights as a reference, the rebar cage or rebar mesh is moved to the top of the mold cavity via the four hooks. This provides a more labor-saving and efficient positioning function when the rebar cage or rebar mesh needs to be placed into the mold cavity, demonstrating high practicality.

[0004] However, existing equipment usually relies on manual adjustment, which is not only inefficient but also cannot guarantee the accuracy of rebar mesh alignment in construction projects. After installation, the position of the existing device is not easy to fine-tune, which reduces the accuracy of rebar mesh alignment. Furthermore, the wheels of the existing device may wobble and become unstable during the rebar mesh alignment process, affecting the stability of the alignment process.

[0005] Therefore, we provide a rebar mesh alignment tool with laser-guided lines to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a rebar mesh alignment tool with laser-guided lines, aiming to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rebar mesh alignment tool with laser-guided lines includes a support frame. A longitudinal and transverse adjustment assembly is provided on the inner side of the support frame. The longitudinal and transverse adjustment assembly includes a hydraulic cylinder connected to the upper center of the support frame. Guide rods are connected to the front and rear sides of the support frame. A guide frame is welded to the top of the hydraulic cylinder. A transverse moving rod is installed on the inner side of the guide frame. An electric cylinder is connected to the upper side of the guide frame. An upper seat is installed on the lower right side of the transverse moving rod. A clamping assembly is installed on the lower side of the upper seat. A movable positioning assembly is connected to the outer perimeter of the upper side of the support frame.

[0009] As a further description of the above technical solution:

[0010] The guide rod and the guide frame are slidably connected. The guide frame and the support form a vertically movable structure through the guide rod. The lateral moving rod and the guide frame are slidably connected. The lateral moving rod and the support form a horizontally movable structure through the guide frame and the support.

[0011] As a further description of the above technical solution:

[0012] An upper motor is fixedly connected to the inner side of the upper seat, and a small gear is connected to the lower side of the upper motor. A large gear ring rotating seat is meshed with the surface of the small gear. A sliding groove is opened on the inner wall of the upper seat, and the large gear ring rotating seat is slidably connected to the sliding groove. The large gear ring rotating seat and the upper seat form a rotating structure through the small gear.

[0013] As a further description of the above technical solution:

[0014] The clamping assembly includes a clamping seat fixedly connected to the lower side of the large gear ring swivel. A motor is fixedly connected to the lower front part of the clamping seat. A synchronous belt is connected to the right side of the motor. A lead screw is connected to the end of the synchronous belt. The threads on both sides of the lead screw are opposite left and right threads. The clamping seat and the lead screw are rotatably connected. Clamping plates are connected to both sides of the lead screw. The clamping plates are threadedly connected to the lead screw. The clamping plates form a left-right moving structure through the lead screw and the clamping seat.

[0015] As a further description of the above technical solution:

[0016] Laser heads are symmetrically arranged on the front and rear sides of the clamping plate, and there are eight laser heads in total.

[0017] As a further description of the above technical solution:

[0018] The mobile positioning component includes wheel seats welded to the lower sides of the bracket, with wheels rotatably connected to the inner side of the wheel seats.

[0019] As a further description of the above technical solution:

[0020] Positioning cylinders are installed on the upper sides of the bracket, and the shafts of the positioning cylinders extend to the lower side of the bracket. A pressure plate is welded to the end of the shaft of the positioning cylinder.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model, by setting up a longitudinal and transverse adjustment component, allows the guide frame to move smoothly up and down under the drive of the hydraulic cylinder, and the transverse rod to move smoothly left and right under the drive of the electric cylinder. This allows the clamping component to move to different positions for rebar mesh alignment, improving the accuracy of rebar mesh alignment. In use, the upper motor drives the pinion to rotate, which in turn drives the large gear ring to rotate. The large gear ring rotates and slides along the inner side of the slide groove, causing the clamping component to rotate. This, in turn, rotates the rebar mesh alignment device to the required horizontal angle position for construction, ensuring the accuracy of the rebar mesh alignment process.

[0023] 2. This utility model, through a clamping assembly and a moving positioning assembly, controls the rotation of a motor during rebar mesh alignment, thereby driving a synchronous belt to rotate a lead screw. Two pairs of clamping plates move smoothly and simultaneously towards the center under the drive of the lead screw, pressing the two pairs of clamping plates against both sides of the rebar mesh surface. This prevents the mesh from shifting or shaking during alignment, ensuring the stability and construction quality of the alignment process. Furthermore, the clamping plates can adapt to rebar meshes of different widths, moving to different positions on both sides of the mesh to clamp it, ensuring adaptability during alignment. A laser beam is emitted from a laser head, and the vertical and horizontal adjustment components are adjusted in real time according to the deviation between the laser beam and the target object, aligning the rebar mesh. This reduces the workload of operators and improves work efficiency. Wheels guide the device to the working position, completing the initial positioning for rebar mesh alignment and ensuring flexibility. Subsequently, a hydraulic cylinder pushes a pressure plate to press against the ground surface, preventing the device from shifting or shaking during rebar mesh alignment and ensuring the stability and accuracy of the alignment process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall appearance structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the cooperative structure of the longitudinal and transverse adjustment component, the bracket, and the movable positioning component of this utility model;

[0027] Figure 4 This is a schematic diagram of the cooperative structure of the longitudinal and transverse adjustment component and the clamping component of this utility model;

[0028] Figure 5 This is a structural diagram showing the cooperation between the longitudinal and transverse adjustment assembly and the clamping assembly of this utility model;

[0029] Figure 6 This is a schematic diagram of the overall front cross-sectional structure of this utility model.

[0030] The following are the labeling elements in the diagram: 1. Bracket; 2. Lateral and longitudinal adjustment assembly; 201. Hydraulic cylinder; 202. Guide rod; 203. Guide frame; 204. Lateral rod; 205. Electric cylinder; 206. Upper seat; 207. Upper motor; 208. Pinion; 209. Large gear ring swivel; 210. Slide groove; 3. Clamping assembly; 301. Clamping seat; 302. Motor; 303. Synchronous belt; 304. Lead screw; 305. Clamping plate; 306. Laser head; 4. Moving and positioning assembly; 401. Wheel seat; 402. Wheel; 403. Positioning hydraulic cylinder; 404. Pressure plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a rebar mesh alignment tool with laser-guided lines, including a bracket 1, a longitudinal and transverse adjustment component 2 provided on the inner side of the bracket 1, the longitudinal and transverse adjustment component 2 including a hydraulic cylinder 201 connected to the upper center of the bracket 1, guide rods 202 connected to the front and rear sides of the bracket 1, a guide frame 203 welded to the top of the hydraulic cylinder 201, a transverse moving rod 204 installed on the inner side of the guide frame 203, an electric cylinder 205 connected to the upper side of the guide frame 203, an upper seat 206 installed on the lower right side of the transverse moving rod 204, a clamping component 3 installed on the lower side of the upper seat 206, and a moving positioning component 4 connected to the upper outer periphery of the bracket 1.

[0033] Furthermore, the guide rod 202 and the guide frame 203 are slidably connected. The guide frame 203 forms a vertical moving structure with the support 1 through the guide rod 202. The lateral moving rod 204 is slidably connected with the guide frame 203. The lateral moving rod 204 forms a horizontal moving structure with the support 1 through the guide frame 203. The guide frame 203 moves smoothly up and down under the drive of the hydraulic cylinder 201, and the lateral moving rod 204 moves smoothly left and right under the drive of the electric cylinder 205. This allows the clamping assembly 3 to move to different positions for aligning the rebar mesh, thereby improving the accuracy of the rebar mesh alignment.

[0034] Furthermore, an upper motor 207 is fixedly connected to the inner side of the upper seat 206, and a pinion 208 is connected to the lower side of the upper motor 207. A large gear ring swivel 209 is meshed with the surface of the pinion 208. A sliding groove 210 is provided on the inner wall of the upper seat 206. The large gear ring swivel 209 and the sliding groove 210 are slidably connected. The large gear ring swivel 209 and the upper seat 206 form a rotating structure through the pinion 208. In use, the upper motor 207 drives the pinion 208 to rotate, and the pinion 208 drives the large gear ring swivel 209 to rotate. The large gear ring swivel 209 rotates and slides along the inner side of the sliding groove 210, driving the clamping assembly 3 to rotate, thereby rotating the rebar mesh alignment device to the horizontal angle position required for construction, ensuring the stability and accuracy of the rebar mesh alignment process.

[0035] Furthermore, the clamping assembly 3 includes a clamping seat 301 fixedly connected to the lower side of the large gear ring swivel 209. A motor 302 is fixedly connected to the lower front part of the clamping seat 301. A timing belt 303 is connected to the right side of the motor 302. A lead screw 304 is connected to the end of the timing belt 303. The threads on both sides of the lead screw 304 are opposite left and right threads. The clamping seat 301 and the lead screw 304 are rotatably connected. Clamping plates 305 are connected to both sides of the lead screw 304. The clamping plates 305 are threadedly connected to the lead screw 304. The clamping plates 305 form a left-right connection with the clamping seat 301 through the lead screw 304. In the right-moving structure, during the alignment of the reinforcing mesh, the control motor 302 rotates, thereby driving the synchronous belt 303 to rotate the lead screw 304. Under the drive of the lead screw 304, the two pairs of clamping plates 305 move smoothly and simultaneously towards the center, pressing the two pairs of clamping plates 305 against both sides of the surface of the reinforcing mesh to prevent it from shifting or shaking during the alignment process, ensuring the stability and construction quality of the alignment process. Furthermore, the clamping plates 305 can adapt to reinforcing meshes of different widths, moving to different positions on both sides of the reinforcing mesh to clamp it, ensuring the adaptability of the alignment process.

[0036] Furthermore, laser heads 306 are symmetrically arranged on the front and rear sides of the clamping plate 305. There are eight laser heads 306. In use, laser beams are emitted through the laser heads 306. Based on the deviation between the laser beams and the target object being aligned, the vertical and horizontal adjustment components 2 are adjusted in a timely manner to align the steel mesh, thereby saving the operator's workload and improving work efficiency.

[0037] Furthermore, the mobile positioning component 4 includes wheel seats 401 welded to the lower side of the bracket 1. Wheels 402 are rotatably connected to the inner side of the wheel seats 401. The wheels 402 enable the device to reach the working position and complete the initial positioning of the steel mesh alignment. After the steel mesh alignment is completed, the wheels 402 enable the device to leave quickly, ensuring the flexibility of the device's movement.

[0038] Furthermore, positioning cylinders 403 are installed on the upper side of the bracket 1. The shaft of the positioning cylinder 403 extends to the lower side of the bracket 1. A pressure plate 404 is welded to the end of the shaft of the positioning cylinder 403. In use, the positioning cylinder 403 is extended, and then the positioning cylinder 403 pushes the pressure plate 404 to press against the ground surface around the bracket 1. This prevents the device from shifting or shaking during the alignment of the steel mesh, ensuring the stability and accuracy of the alignment process.

[0039] Working Principle: The device is installed in the working position, and the wheels 402 move it to the working position to complete the initial positioning for rebar mesh alignment. The positioning cylinder 403 extends, and then pushes the pressure plate 404 to press against the ground surface to prevent the device from shifting or shaking during rebar mesh alignment. The rebar mesh to be aligned is then placed into the clamping assembly 3. The motor 302 rotates, which drives the synchronous belt 303 to rotate the lead screw 304. Driven by the lead screw 304, the two pairs of clamping plates 305 move smoothly and simultaneously towards the center, pressing against both sides of the rebar mesh surface to clamp it. Finally, the longitudinal and transverse adjustment assemblies 2 are initially adjusted, and the rebar mesh is visually aligned to achieve the initial positioning. Then, a laser beam is emitted through the laser head 306. Based on the deviation between the laser beam and the target object to be aligned, the guide frame 203 moves smoothly up and down under the drive of the hydraulic cylinder 201, and the horizontal rod 204 moves smoothly left and right under the drive of the electric cylinder 205. This allows the clamping assembly 3 to move to different positions for aligning the rebar mesh. The upper motor 207 drives the pinion 208 to rotate, which in turn drives the large gear ring swivel 209 to rotate. The large gear ring swivel 209 rotates and slides along the inner side of the slide groove 210, causing the clamping assembly 3 to rotate. This rotates the rebar mesh alignment device to the required horizontal angle position for construction, ensuring the stability and accuracy of the rebar mesh alignment process. This completes the use of a rebar mesh alignment tool with laser auxiliary lines.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rebar mesh alignment tool with laser-guided lines, comprising a support (1), characterized in that: The bracket (1) is provided with a longitudinal and transverse adjustment assembly (2) on its inner side. The longitudinal and transverse adjustment assembly (2) includes a hydraulic cylinder (201) connected to the upper center of the bracket (1). Guide rods (202) are connected to the front and rear sides of the bracket (1). A guide frame (203) is welded to the top of the hydraulic cylinder (201). A transverse moving rod (204) is installed on the inner side of the guide frame (203). An electric cylinder (205) is connected to the upper side of the guide frame (203). An upper seat (206) is installed on the lower right side of the transverse moving rod (204). A clamping assembly (3) is installed on the lower side of the upper seat (206). A moving positioning assembly (4) is connected to the upper outer periphery of the bracket (1).

2. The rebar mesh alignment tool with laser-guided lines according to claim 1, characterized in that, The guide rod (202) and the guide frame (203) are slidably connected. The guide frame (203) forms an up-down moving structure with the support (1) through the guide rod (202). The transverse rod (204) and the guide frame (203) are slidably connected. The transverse rod (204) forms a left-right moving structure with the support (1) through the guide frame (203).

3. The rebar mesh alignment tool with laser-guided lines according to claim 1, characterized in that, An upper motor (207) is fixedly connected to the inner side of the upper seat (206). A small gear (208) is connected to the lower side of the upper motor (207). A large gear ring swivel (209) is meshed with the surface of the small gear (208). A sliding groove (210) is provided on the inner wall of the upper seat (206). The large gear ring swivel (209) and the sliding groove (210) are slidably connected. The large gear ring swivel (209) and the upper seat (206) form a rotating structure through the small gear (208).

4. A rebar mesh alignment tool with laser-guided lines according to claim 3, characterized in that, The clamping assembly (3) includes a clamping seat (301) fixedly connected to the lower side of the large gear ring swivel (209). A motor (302) is fixedly connected to the lower front part of the clamping seat (301). A synchronous belt (303) is connected to the right side of the motor (302). A lead screw (304) is connected to the end of the synchronous belt (303). The threads on both sides of the lead screw (304) are opposite left and right threads. The clamping seat (301) and the lead screw (304) are rotatably connected. Clamping plates (305) are connected to both sides of the lead screw (304). The clamping plates (305) are threadedly connected to the lead screw (304). The clamping plates (305) form a left and right moving structure through the lead screw (304) and the clamping seat (301).

5. A rebar mesh alignment tool with laser-guided lines according to claim 4, characterized in that, Laser heads (306) are symmetrically arranged on the front and rear sides of the clamping plate (305), and there are eight laser heads (306).

6. A rebar mesh alignment tool with laser-guided lines according to claim 1, characterized in that, The mobile positioning component (4) includes a wheel seat (401) welded to the lower side of the bracket (1), and a wheel (402) is rotatably connected to the inner side of the wheel seat (401).

7. A rebar mesh alignment tool with laser-guided lines according to claim 1, characterized in that, A positioning cylinder (403) is installed on the upper side of the bracket (1). The shaft of the positioning cylinder (403) extends through to the lower side of the bracket (1). A pressure plate (404) is welded to the end of the shaft of the positioning cylinder (403).