Anti-collision wall steel bar positioning device

Abstract

The utility model relates to the technical field of anti -collision wall, concretely is a kind of anti -collision wall reinforcing bar positioning device, it includes: positioning base plate, connecting column, positioning assembly, support plate, antiskid tab, support column, threaded cylinder and drive assembly.Positioning base plate upper surface four corners are fixed with the bottom end of connecting column, connecting column top end installs positioning assembly, four support plates are set to positioning base plate lower surface, the antiskid tab of several fixed support plate lower surface, support plate upper surface is fixed with the bottom end of support column, support column top end penetrates positioning base plate and is connected threaded cylinder with screw thread.Sliding connection between support column and positioning base plate, threaded cylinder outer ring connects drive assembly;Drive assembly drives four threaded cylinders synchronous rotation, makes support column synchronous lifting, avoids the tedious operation and asynchronous problem of adjusting support column one by one, guarantees the levelness after the adjustment of positioning base plate, saves spirit level repeated calibration step, improves positioning efficiency, enhances device adaptability.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision wall technology, specifically an anti-collision wall steel bar positioning device. Background Technology

[0002] With the rapid development of society and the economy, infrastructure projects such as bridges are also being vigorously promoted. Bridge crash barriers, constructed to prevent out-of-control vehicles from going off the bridge and for aesthetic purposes, are receiving increasing attention. Currently, the quality of bridge crash barriers directly affects traffic safety and the overall appearance of the bridge. The positioning accuracy of the internal steel reinforcement cage is a crucial prerequisite for ensuring the thickness of the concrete cover, ensuring reasonable structural stress, and even achieving a straight final shape. Therefore, precise positioning of the steel reinforcement during construction is a vital step.

[0003] In existing technologies, when pre-installing and arranging the reinforcing bars of bridge crash barriers on level ground, a reinforcing bar positioning device is often used to position the bars. This type of device typically consists of a base plate and an upper positioning frame, which achieves accurate positioning of the reinforcing bars by constraining them in the lateral, longitudinal, and vertical directions. To further improve adaptability, this type of device often has multiple threaded independent support columns at the corners of the base. By rotating each support column individually, their movement distance is kept consistent, thereby achieving fine adjustment of the base's height and level.

[0004] However, the above adjustment process is time-consuming due to the need to operate multiple support columns independently, affecting positioning efficiency. Furthermore, when adjusting each support column individually, it is difficult to ensure that the movement of each column is completely consistent. After leveling, a level instrument is often needed to verify the base; if the level requirement is not met, readjustment is required, increasing the complexity of the operation and impacting the overall efficiency of the rebar positioning work. Therefore, this utility model proposes a rebar positioning device for anti-collision walls to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a rebar positioning device for anti-collision walls to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for anti-collision wall reinforcement bars, comprising: a positioning base plate, wherein the four corners of the upper surface of the positioning base plate are fixedly connected to the bottom end of the connecting column, and a positioning component is installed on the top of the connecting column;

[0007] Four support plates are arranged in a circular array on the lower surface of the positioning base plate. Several anti-slip protrusions are fixedly connected to the lower surface of the support plates. The upper surface of the support plates is fixedly connected to the bottom end of the support column. The top of the support column passes through the positioning base plate and is threaded into the threaded cylinder. The support column and the positioning base plate are slidably connected. A drive assembly for driving the threaded cylinder to rotate is connected to the outer ring surface of the threaded cylinder.

[0008] Preferably, the positioning component includes a positioning frame and the positioning frame is L-shaped. The lower surface of the positioning frame is fixedly connected to the top of the connecting column, and a height limiting plate is fixedly connected to the top of the positioning frame.

[0009] Preferably, a central limiting plate is fixedly connected to one side of the central part of the positioning frame, and end limiting plates are fixedly connected to both sides of the positioning frame. Several limiting grooves are equally spaced on one side of both the central limiting plate and the end limiting plates, and a set of diagonal bracing rods are welded and fixed to the rear side of the positioning frame.

[0010] Preferably, the drive assembly includes a handwheel, which is fixedly connected to the end of the worm gear. The worm gear is rotatably sleeved in a support seat fixedly installed on one side of the lower surface of the positioning frame, and a worm wheel is engaged on one side of the worm gear.

[0011] Preferably, the bottom of the worm gear disk is fixedly connected to the top of the gear ring via a connecting rod, the bottom of the gear ring is pressed into the limiting ring, the bottom of the limiting ring is fixedly connected to the upper surface of the positioning base plate, and four gears are meshed inside the gear ring.

[0012] Preferably, the gear is fixedly sleeved on the outer ring surface of the threaded cylinder, the upper surface of the gear is slidably inserted into the bottom of the limiting sleeve, the top of the limiting sleeve is fixedly connected to the bottom of the positioning frame, a guide rod is provided inside the limiting sleeve, the top of the guide rod is fixedly connected to the bottom of the positioning frame, and the bottom of the guide rod is slidably connected to the guide groove opened on the outer ring surface of the support column.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The drive assembly drives the four threaded cylinders to rotate synchronously, enabling the four support columns to rise and fall synchronously. This avoids the tedious operation and asynchronous problems caused by adjusting the support columns one by one, effectively ensuring the levelness of the positioning base plate after adjustment. It eliminates the need for repeated verification with a level, improves the efficiency and convenience of rebar positioning, and enhances the device's adaptability to different construction conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a side view of the overall structure of this utility model;

[0018] Figure 4 This is a top view of the internal structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Positioning base plate; 2. Connecting column; 3. Support plate; 4. Anti-slip protrusion; 5. Support column; 6. Threaded cylinder; 7. Positioning frame; 8. Height limit plate; 9. Middle limit plate; 10. End limit plate; 11. Limiting groove; 12. Handwheel; 13. Worm gear; 14. Worm wheel; 15. Connecting rod; 16. Gear ring; 17. Limiting ring; 18. Gear; 19. Limiting sleeve; 20. Guide rod; 21. Guide groove; 22. Diagonal brace. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a rebar positioning device for a crash barrier, comprising: a positioning base plate 1, which serves as the foundation of the entire device and supports it; the four corners of the upper surface of the positioning base plate 1 are fixedly connected to the bottom of the connecting column 2; a positioning component is installed at the top of the connecting column 2; the positioning component facilitates rapid positioning of the rebar during arrangement, thereby improving construction efficiency; four support plates 3 are provided on the lower surface of the positioning base plate 1, arranged in a circular array; the four support plates 3 are circular in shape and all four support plates 3 are identical in size and shape; several anti-slip protrusions 4 are fixedly connected to the lower surface of the support plates 3, thereby increasing the friction with the ground and improving the support stability of the positioning base plate 1; the upper surface of the support plates 3 is fixedly connected to the bottom of the support column 5; the top of the support column 5 penetrates the positioning base plate 1 and is threaded into the threaded cylinder 6; the support column 5 and the positioning base plate 1 are slidably connected; and a driving component for driving the threaded cylinder 6 to rotate is connected to the outer ring surface of the threaded cylinder 6.

[0023] In use, when positioning a row of reinforcing bars, the support plate 3 is first placed on the ground. The anti-slip protrusions 4 on the lower surface of the four support plates 3 contact the ground, increasing the friction with the ground and ensuring the stability of the positioning base plate 1 supporting the entire device. The positioning components are used to position and arrange the reinforcing bars. When the height of the positioning base plate 1 needs to be finely adjusted, the four threaded cylinders 6 are driven by the drive components to rotate synchronously. Since the threaded cylinders 6 and the support columns 5 are threadedly connected, the support columns 5 are driven to move along their axial direction, thereby making the four support columns 5 move synchronously. This ensures that the moving distance of the four support columns 5 is consistent, avoiding the trouble of adjusting with a level later. It also makes it easier to position reinforcing bars of slightly different lengths, reducing the complexity of operation.

[0024] The positioning assembly includes a positioning frame 7, which is L-shaped. The lower surface of the positioning frame 7 is fixedly connected to the top of the connecting column 2. A height limiting plate 8 is fixedly connected to the top of the positioning frame 7 to limit the maximum height of the reinforcing bars. A middle limiting plate 9 is fixedly connected to one side of the middle of the positioning frame 7 to limit and fix the middle of the reinforcing bars. End limiting plates 10 are fixedly connected to both sides of the positioning frame 7 to limit the upper and lower ends of the reinforcing bars. Several limiting grooves 11 are equally spaced on one side of the middle limiting plate 9 and the end limiting plate 10. By placing the reinforcing bars in the equally spaced limiting grooves 11, and then using the limiting cooperation of the end limiting plate 10 and the middle limiting plate 9, a row of reinforcing bars can be quickly and accurately positioned. The operation is convenient and reduces labor costs. A set of diagonal bracing rods 22 are welded and fixed to the rear side of the positioning frame 7 to further support the positioning frame 7 and improve its placement stability.

[0025] The drive assembly includes a handwheel 12, which is fixedly connected to the end of a worm gear 13. Twisting the handwheel 12 drives the worm gear 13 to rotate. The worm gear 13 is rotatably mounted within a support fixedly installed on one side of the lower surface of the positioning frame 7. The support limit the rotation of the worm gear 13, ensuring its stability. A worm wheel 14 meshes with one side of the worm gear 13, and the worm gear 13 and worm wheel 14 engage for transmission. The bottom of the worm wheel 14 is fixedly connected to the top of a gear ring 16 via a connecting rod 15. Through the connection of the connecting rod 15, the worm wheel 14 drives the gear ring 16 to rotate synchronously. The bottom of the gear ring 16 is pressed into a limiting ring 17, and the bottom of the limiting ring 17 is fixedly connected to the upper surface of the positioning base plate 1. The gear ring 16 is limited during rotation. Four gears 18 are meshed inside the gear ring 16. The four gears 18 mesh synchronously with the gear ring 16. The gears 18 are fixedly sleeved on the outer ring surface of the threaded cylinder 6. The upper surface of the gears 18 is slidably inserted into the bottom of the limiting sleeve 19. An annular groove is opened on the upper surface of the gears 18. The gears 18 are limited by the sliding insertion of the annular groove into the bottom of the limiting sleeve 19, thereby improving the rotational stability of the threaded cylinder 6. The top of the limiting sleeve 19 is fixedly connected to the bottom of the positioning frame 7. A guide rod 20 is provided inside the limiting sleeve 19. The top of the guide rod 20 is fixedly connected to the bottom of the positioning frame 7. The bottom of the guide rod 20 is slidably connected to the guide groove 21 opened on the outer ring surface of the support column 5.

[0026] When the height of the positioning base plate 1 needs to be finely adjusted, the handwheel 12 is turned to drive the worm gear 13 to rotate. The worm gear 13 then meshes with the worm wheel 14, driving the worm wheel 14 to move. Under the connection of the connecting rod 15, the worm wheel 14 moves synchronously with the bottom gear ring 16. The gear ring 16 rotates under the limit of the limiting ring 17, thereby causing the gear ring 16 to drive the four meshing gears 18 inside it to rotate. The gears 18 then drive the threaded cylinder 6 to rotate under the limit of the limiting sleeve 19. The threaded cylinder 6 then drives the support column 5 to move through the threaded connection between it and the support column 5. The support column 5 has guide grooves 21 on both sides of its outer ring surface, and guide rods 20 are set in the guide grooves 21. The support column 5 moves along its own axis under the sliding cooperation of the guide rods 20 and the guide grooves 21, thereby driving the four support plates 3 to move synchronously. This achieves precise fine-tuning of the height of the positioning base plate 1 without the need for repeated adjustments with a level. The operation is convenient and fast, and it can also adapt to steel bars of different lengths, improving the practicality of the entire device.

[0027] 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 positioning device for reinforcing bars of a crash barrier, comprising a positioning base plate (1), characterized in that: The four corners of the upper surface of the positioning base plate (1) are fixedly connected to the bottom end of the connecting column (2), and a positioning component is installed on the top of the connecting column (2); The lower surface of the positioning base plate (1) is provided with four support plates (3), which are arranged in a circular array. Several anti-slip convex pieces (4) are fixedly connected to the lower surface of the support plates (3). The upper surface of the support plates (3) is fixedly connected to the bottom end of the support column (5). The top end of the support column (5) passes through the positioning base plate (1) and is threaded into the threaded cylinder (6). The support column (5) and the positioning base plate (1) are slidably connected. The outer ring surface of the threaded cylinder (6) is connected to a drive component for driving the threaded cylinder (6) to rotate.

2. The anti-collision wall reinforcement positioning device according to claim 1, characterized in that: The positioning component includes a positioning frame (7) which is L-shaped. The lower surface of the positioning frame (7) is fixedly connected to the top of the connecting column (2), and the top of the positioning frame (7) is fixedly connected to a height limiting plate (8).

3. The anti-collision wall reinforcement positioning device according to claim 2, characterized in that: A central limiting plate (9) is fixedly connected to one side of the middle part of the positioning frame (7), and end limiting plates (10) are fixedly connected to both sides of the positioning frame (7). Several limiting grooves (11) are equally spaced on one side of the central limiting plate (9) and the end limiting plate (10). A set of diagonal bracing rods (22) are welded and fixed to the rear side of the positioning frame (7).

4. The anti-collision wall reinforcement positioning device according to claim 1, characterized in that: The drive assembly includes a handwheel (12), which is fixedly connected to the end of a worm (13). The worm (13) is rotatably sleeved in a support seat fixedly installed on one side of the lower surface of the positioning frame (7), and a worm wheel (14) is engaged on one side of the worm (13).

5. A rebar positioning device for a crash barrier according to claim 4, characterized in that: The bottom of the worm gear disk (14) is fixedly connected to the top of the gear ring (16) via a connecting rod (15). The bottom of the gear ring (16) is pressed into the limiting ring (17). The bottom of the limiting ring (17) is fixedly connected to the upper surface of the positioning base plate (1). Four gears (18) mesh inside the gear ring (16).

6. A rebar positioning device for a crash barrier according to claim 5, characterized in that: The gear (18) is fixedly sleeved on the outer ring surface of the threaded cylinder (6). The upper surface of the gear (18) is slidably inserted into the bottom of the limiting sleeve (19). The top of the limiting sleeve (19) is fixedly connected to the bottom of the positioning frame (7). A guide rod (20) is provided inside the limiting sleeve (19). The top of the guide rod (20) is fixedly connected to the bottom of the positioning frame (7). The bottom of the guide rod (20) is slidably connected to the guide groove (21) opened on the outer ring surface of the support column (5).

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