A reinforcing bar positioning fixture for crash barrier

By designing a positioning fixture for the steel reinforcement of the crash barrier, and utilizing components such as conveyor belts and hydraulic cylinders, the precise positioning and efficient transportation of the steel reinforcement are achieved, solving the problem of poor positioning and transportation effects of steel reinforcement in existing technologies and improving construction efficiency.

CN115787477BActive Publication Date: 2026-03-17CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-11
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

During the installation of steel reinforcement for bridge crash barriers, existing technologies struggle to achieve intuitive and convenient positioning of the steel reinforcement and result in poor transportation efficiency. In particular, it is difficult to control the position of the steel reinforcement and the thickness of the protective layer after the formwork is installed.

Method used

A positioning fixture for installing reinforcing bars in a crash barrier was designed, comprising components such as a conveyor belt, a sliding plate, a limiting plate, a hydraulic cylinder, a lifting ring, and a lifting clamp. The reinforcing bars are transported via the conveyor belt, and the precise positioning and transportation of the reinforcing bars are achieved through the cooperation of the hydraulic cylinder and the limiting plate. The fixture is combined with a camera and indicator lights for real-time position indication.

Benefits of technology

It enables precise positioning and efficient transportation of reinforcing bars, improves positioning accuracy and installation efficiency during construction, and simplifies the installation process of reinforcing bars.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115787477B_ABST
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Abstract

The application discloses an anti-collision guardrail steel bar mounting and positioning fixture, which is characterized in that: the steel bar is placed on a sliding plate, the steel bar is slid onto a conveying belt by tilting the sliding plate, then the steel bar is pushed into a long plate by the conveying belt, then the connecting piece on the first fixed shell drives the second limiting plate to be flipped up by rotating the first rotating shaft, so that the long plate is flipped up, when the long plate is close to vertical with the base, the first connecting rod is driven to move close to the long plate by the first hydraulic cylinder, the steel bar is taken out by the taking ring, the second rotating shaft in the second fixed shell on the first connecting rod drives the taking ring on the fixed block to rotate, so that the steel bar is put into the mounting groove, then the camera lights up the indicator light at each position according to the position of each steel bar installation, the third fixed shell is pushed to the position of the light by the second hydraulic cylinder on the fixed plate, then the second connecting rod is elongated, the taking clamp takes out the steel bar, the third rotating shaft is rotated, the steel bar is taken to the installation position, and then the steel bar is installed.
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Description

Technical Field

[0001] This invention belongs to the technical field of anti-collision guardrail reinforcement installation, specifically relating to an anti-collision guardrail reinforcement installation positioning clamp. Background Technology

[0002] Because the steel bars of bridge crash barriers are densely packed, and there are pre-embedded facilities such as cable conduits and junction boxes inside them, it is difficult to control the structural dimensions and protective layer of the steel bars during construction.

[0003] Existing methods for installing reinforcing bars only allow for positioning of the bars after the formwork is installed using protective layer spacers. This does not provide a direct and convenient way to measure and locate the required position and deviation of the reinforcing bars during installation. Furthermore, the method is not ideal for transporting the reinforcing bars during installation. Therefore, a new type of positioning clamp for installing reinforcing bars in crash barriers is proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a positioning clamp for installing steel bars in anti-collision guardrails, which solves the technical problem of poor transportation effect of steel bars during the installation process in the prior art.

[0005] The objective of this invention can be achieved through the following technical solution: a positioning clamp for installing reinforcing bars in a crash barrier, comprising a base, a conveyor belt on one side of the base, a roller shaft installed inside the conveyor belt, a sliding plate above the roller shaft, the sliding plate being fixedly installed on one side of the conveyor belt, first limiting plates fixedly installed on both sides of the sliding plate, a long plate on one side of the first limiting plate, the long plate being fixedly installed on the upper surface of the base, and a second limiting plate fixedly installed on the long plate. The roller shaft can drive the conveyor belt to rotate, and the sliding plate can slide the reinforcing bars onto the conveyor belt. The first and second limiting plates are used to limit the position of the reinforcing bars and prevent them from slipping off. A first fixing shell is provided on one side of the second limiting plate, and the first fixing shell is fixedly installed on the upper surface of the base. A first rotating shaft is fixedly installed inside a first fixed housing. The first rotating shaft is rotatably connected to a connecting piece. The connecting piece is fixedly connected to a second limiting plate. A stand is provided on one side of the connecting piece. An installation groove is opened below the stand. A first hydraulic cylinder is provided above the installation groove. A first connecting rod is fixedly connected to the telescopic end of the first hydraulic cylinder. A second fixed housing is fixedly installed on one side of the first connecting rod. A second rotating shaft is fixedly installed inside the second fixed housing. A fixed block is rotatably connected to the second rotating shaft. A picking ring is fixedly connected to one side of the fixed block. The first hydraulic cylinder can push the first connecting rod to move, and the fixed block rotates by the rotation of the second rotating shaft, which in turn drives the picking ring on the fixed block to rotate. The picking ring is used to clamp steel bars.

[0006] A vertical plate is fixedly installed on the upper surface of the base, and a fixed plate is fixedly installed on the vertical plate. A long, narrow groove is provided below the fixed plate and is located on the vertical plate. A second hydraulic cylinder is located above the long, narrow groove and is fixedly installed on the fixed plate. A third fixed housing is fixedly connected to the telescopic end of the second hydraulic cylinder. A slider is fixedly installed on the lower surface of the third fixed housing and is movably connected to the long, narrow groove. A third rotating shaft is fixedly installed inside the third fixed housing and is rotatably connected to a second connecting rod. A retrieval clamp is fixedly installed on one side of the second connecting rod. In use, the second hydraulic cylinder can push the third fixed housing to move on the long, narrow groove, and the second connecting rod can be rotated via the third rotating shaft, thereby causing the retrieval clamp on the second connecting rod to rotate. The retrieval clamp is used to grip reinforcing bars. A vertical steel ruler is provided on one side of the retrieval clamp and is fixedly installed on the upper surface of the base. Three positioning ribs are provided on one side of the vertical steel ruler and are fixedly installed on one side of the base.

[0007] Preferably, a camera is fixedly installed on the base, which has the advantage of capturing the location of the steel reinforcement installation.

[0008] Preferably, a number of indicator lights are fixedly installed on the upright plate, and the number of indicator lights are distributed in an array on the upright plate. The advantage of this design is that it is used to indicate the position of the steel reinforcement installation.

[0009] Preferably, an elastic element is fixedly connected to the lower surface of the connector, and the elastic element is fixedly connected to the base to maintain stability.

[0010] Preferably, the second connecting rod is telescopic.

[0011] Preferably, the connector is telescopic.

[0012] Preferably, the maximum length of the telescopic end of the second hydraulic cylinder is greater than the length of the elongated chute.

[0013] Preferably, the height of the conveyor belt is greater than the height of the base.

[0014] Preferably, the vertical steel ruler is capable of automatic extension and retraction.

[0015] The beneficial effects of this invention are:

[0016] In use, this invention involves placing the reinforcing bar on a sliding plate, which then slides it onto a conveyor belt at an angle. A roller, driven by the conveyor belt, pushes the reinforcing bar into a long plate. A connecting piece on the first fixed housing, through the rotation of the first rotating shaft, flips up the connected second limiting plate, causing the long plate fixedly mounted on the second limiting plate to also flip up. When the long plate rotates to a near-perpendicular angle with the base, the first hydraulic cylinder on the upright pushes the first connecting rod towards the long plate until the retrieval ring removes the reinforcing bar. Then, the second rotating shaft inside the second fixed housing on the first connecting rod rotates the retrieval ring on the fixed block, placing it into the mounting slot of the upright. A camera and a vertical steel ruler illuminate indicator lights at each position on the upright based on the installation location of each reinforcing bar. The second hydraulic cylinder on the fixed plate, based on the indicator light position, pushes the third fixed housing to the indicator light position via a slider below. The second connecting rod then extends, and the retrieval clamp removes the corresponding reinforcing bar. The rotation of the third rotating shaft then carries the reinforcing bar to the installation position for installation. This achieves precise positioning and transportation of the reinforcing bars during installation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 This is a front view schematic diagram of an embodiment of the present invention;

[0020] Figure 3 This is a top view schematic diagram of an embodiment of the present invention;

[0021] Figure 4 yes Figure 1 Enlarged internal view of point A in the middle;

[0022] Figure 5 yes Figure 1 Enlarged internal view of point B in the middle.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base; 2. Conveyor belt; 3. Roller; 4. Slide plate; 5. First limiting plate; 6. Long plate; 7. Second limiting plate; 8. First fixed shell; 9. First rotating shaft; 10. Connecting piece; 11. Elastic element; 12. Stand; 13. Mounting groove; 14. First hydraulic cylinder; 15. First connecting rod; 16. Second fixed shell; 17. Second rotating shaft; 18. Fixing block; 19. Lifting ring; 20. Stand plate; 21. Fixing plate; 22. Second hydraulic cylinder; 23. Long slide groove; 24. Slider; 25. Third fixed shell; 26. Third rotating shaft; 27. Second connecting rod; 28. Lifting clamp; 29. ​​Indicator light; 30. Camera; 31. Protective rib; 32. Vertical steel ruler. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1-5As shown, a positioning fixture for installing reinforcing bars in a crash barrier includes a base 1. A conveyor belt 2 is provided on one side of the base 1. A roller 3 is installed inside the conveyor belt 2. A sliding plate 4 is provided above the roller 3 and is fixedly installed on one side of the conveyor belt 2. First limiting plates 5 are fixedly installed on both sides of the sliding plate 4. A long plate 6 is provided on one side of the first limiting plate 5 and is fixedly installed on the upper surface of the base 1. A second limiting plate 7 is fixedly installed on the long plate 6. Further explanation is needed: in specific implementation, the roller 3 can drive the conveyor belt 2 to rotate, and the sliding plate 4 can slide the reinforcing bar onto the conveyor belt 2. The first limiting plate 5 and the second limiting plate 7 are used to limit the position of the reinforcing bar and prevent it from slipping. A first fixing shell 8 is provided on one side of the second limiting plate 7 and is fixedly installed on the upper surface of the base 1. A first rotating shaft 9 is fixedly installed inside the first fixing shell 8. A rotating shaft 9 is rotatably connected to a connecting member 10. The connecting member 10 is fixedly connected to a second limiting plate 7. A stand 12 is provided on one side of the connecting member 10. An installation groove 13 is provided below the stand 12. A first hydraulic cylinder 14 is provided above the installation groove 13. A first connecting rod 15 is fixedly connected to the telescopic end of the first hydraulic cylinder 14. A second fixed shell 16 is fixedly installed on one side of the first connecting rod 15. A second rotating shaft 17 is fixedly installed inside the second fixed shell 16. A fixed block 18 is rotatably connected to the second rotating shaft 17. A picking ring 19 is fixedly connected to one side of the fixed block 18. It should be further explained that in the specific implementation process, the first hydraulic cylinder 14 can push the first connecting rod 15 to move, and the fixed block 18 rotates by the rotation of the second rotating shaft 17, which in turn drives the picking ring 19 on the fixed block 18 to rotate. The picking ring 19 is used to clamp the steel bar.

[0027] A vertical plate 20 is fixedly installed on the upper surface of the base 1. A fixed plate 21 is fixedly installed on the vertical plate 20. An elongated slide groove 23 is provided below the fixed plate 21. The elongated slide groove 23 is formed on the vertical plate 20. A second hydraulic cylinder 22 is provided above the elongated slide groove 23. The second hydraulic cylinder 22 is fixedly installed on the fixed plate 21. A third fixed housing 25 is fixedly connected to the telescopic end of the second hydraulic cylinder 22. A slider 24 is fixedly installed on the lower surface of the third fixed housing 25. The slider 24 is movably connected to the elongated slide groove 23. A third rotating shaft 26 is fixedly installed inside the third fixed housing 25. A second connecting rod 27 is rotatably connected to the third rotating shaft 26. A retrieval clamp 28 is fixedly installed on one side of the second connecting rod 27. It should be further explained that, in specific implementation, during use, the second hydraulic cylinder 22 can push the third fixed housing 25 to move on the elongated slide groove 23. Furthermore, the second connecting rod 27 can be rotated via the third rotating shaft 26, thereby causing the retrieval clamp 28 on the second connecting rod 27 to rotate. The retrieval clamp 28 is used to clamp the reinforcing bars. A vertical steel ruler 32 is provided on one side of the retrieval clamp 28. The vertical steel ruler 32 is fixedly installed on the upper surface of the base 1. Three positioning ribs 31 are provided on one side of the vertical steel ruler 32. The three positioning ribs 31 are fixedly installed on one side of the base 1. It should be further explained that in the specific implementation process, the vertical steel ruler 32 is used to control the height, and a horizontal guide is fixedly installed on the vertical steel ruler 32 to control the verticality and horizontality. The verticality and horizontality are adjusted by the adjustable bolts of the anchor. The thickness of the outer protective layer is controlled by the upper steel ruler, and the thickness of the inner protective layer is controlled by the lower steel ruler. The installation of the horizontal ribs is controlled by the positioning ribs 31. This design can improve the installation accuracy and efficiency of the guardrail reinforcing bars. The vertical steel ruler 32 can automatically extend and retract.

[0028] It should be further explained that, in the specific implementation process, a camera 30 is fixedly installed on the base 1. The advantage of this design is that it can collect the location of the steel bar installation.

[0029] It should be further explained that, in the specific implementation process, a number of indicator lights 29 are fixedly installed on the upright plate 20, and the number of indicator lights 29 are distributed in an array on the upright plate 20. The advantage of this design is that it is used to indicate the position of the steel bar installation.

[0030] It should be further explained that, in the specific implementation process, an elastic element 11 is fixedly connected to the lower surface of the connector 10, and the elastic element 11 is fixedly connected to the base 1 to maintain stability.

[0031] It should be further explained that, in the specific implementation process, the second connecting rod 27 is telescopic.

[0032] It should be further explained that, in the specific implementation process, the connector 10 is telescopic.

[0033] It should be further explained that, in the specific implementation process, the maximum length of the telescopic end of the second hydraulic cylinder 22 is greater than the length of the elongated slide groove 23.

[0034] It should be further explained that, in the specific implementation process, the height of the conveyor belt 2 is greater than the height of the base 1.

[0035] Working principle: By placing the reinforcing bar on the slide plate 4, the inclined angle of the slide plate 4 slides the reinforcing bar onto the conveyor belt 2. Then, the roller 3 pushes the reinforcing bar into the long plate 6 through the drive of the conveyor belt 2. Then, the connecting piece 10 on the first fixed shell 8 drives the second limiting plate 7 to flip up through the rotation of the first rotating shaft 9. This causes the long plate 6 fixedly installed on the second limiting plate 7 to also flip up. When the long plate 6 is rotated to an angle close to perpendicular to the base 1, the first hydraulic cylinder 14 on the stand 12 pushes the first connecting rod 15 closer to the long plate 6. After the picking ring 19 removes the reinforcing bar, the second rotating shaft 1 in the second fixed shell 16 on the first connecting rod 15... 7 drives the retrieval ring 19 on the fixed block 18 to rotate, thereby placing it into the mounting slot 13 of the upright 12. Then, the camera 30 and the vertical steel ruler 32 illuminate the indicator lights 29 on each position of the upright plate 20 according to the installation position of each rebar. The second hydraulic cylinder 22 on the fixed plate 21 pushes the third fixed shell 25 to the position of the indicator light 29 through the slider 24 below, and then extends the second connecting rod 27. The retrieval clamp 28 takes out the corresponding rebar, and then the rebar is brought to the installation position by the rotation of the third rotating shaft 26. Then, the rebar is installed according to the position of each indicator light 29.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A crash barrier reinforcement mounting and positioning fixture comprising a base (1) characterised in that, The side of the base (1) is provided with a conveyor belt (2), the roller shaft (3) is installed in the conveyor belt (2), the slide plate (4) is arranged above the roller shaft (3), the slide plate (4) is fixedly installed on one side of the conveyor belt (2), the first limiting plate (5) is fixedly installed on both sides of the slide plate (4), the long plate (6) is arranged on one side of the first limiting plate (5), the long plate (6) is fixedly installed on the upper surface of the base (1), the second limiting plate (7) is fixedly installed on the long plate (6), the first fixed shell (8) is arranged on one side of the second limiting plate (7), the first fixed shell (8) is fixedly installed on the upper surface of the base (1), the first rotating shaft (9) is fixedly installed in the first fixed shell (8), the connecting piece (10) is rotatably connected with the first rotating shaft (9), the connecting piece (10) is fixedly connected with the second limiting plate (7), the stand (12) is arranged on one side of the connecting piece (10), the mounting groove (13) is arranged below the stand (12), the first hydraulic cylinder (14) is arranged above the mounting groove (13), the first connecting rod (15) is fixedly connected with the telescopic end of the first hydraulic cylinder (14), the second fixed shell (16) is fixedly installed on one side of the first connecting rod (15), the second rotating shaft (17) is fixedly installed in the second fixed shell (16), the fixed block (18) is rotatably connected with the second rotating shaft (17), the taking ring (19) is fixedly connected with one side of the fixed block (18). The vertical plate (20) is fixedly installed on the upper surface of the base (1), the fixed plate (21) is fixedly installed on the vertical plate (20), the long sliding groove (23) is arranged below the fixed plate (21), the long sliding groove (23) is arranged on the vertical plate (20), the second hydraulic cylinder (22) is arranged above the long sliding groove (23), the second hydraulic cylinder (22) is fixedly installed on the fixed plate (21), the third fixed shell (25) is fixedly connected with the telescopic end of the second hydraulic cylinder (22), the sliding block (24) is fixedly installed on the lower surface of the third fixed shell (25), the sliding block (24) is movably connected with the long sliding groove (23), the third rotating shaft (26) is fixedly installed in the third fixed shell (25), the second connecting rod (27) is rotatably connected with the third rotating shaft (26), the taking clamp (28) is fixedly installed on one side of the second connecting rod (27), the vertical steel ruler (32) is arranged on one side of the taking clamp (28), the vertical steel ruler (32) is fixedly installed on the upper surface of the base (1), the three positioning ribs (31) are fixedly installed on one side of the base (1).

2. A crash barrier reinforcement mounting and positioning fixture according to claim 1, characterised in that, The camera (30) is fixedly installed on the base (1).

3. A crash rail reinforcement mounting and positioning fixture according to claim 1, characterised in that, The plurality of indicator lights (29) are fixedly installed on the vertical plate (20) and are arranged in an array.

4. The crash rail reinforcement mounting and positioning fixture of claim 1, wherein, The elastic member (11) is fixedly connected to the lower surface of the connecting piece (10), and the elastic member (11) is fixedly connected to the base (1).

5. A crash rail reinforcement mounting and positioning fixture according to claim 1, wherein, The second connecting rod (27) can be telescopic.

6. A crash rail reinforcement mounting and positioning fixture according to claim 4, wherein, The connecting piece (10) can be telescopic.

7. A crash rail reinforcement mounting and positioning fixture according to claim 1, wherein The maximum length of the telescopic end of the second hydraulic cylinder (22) is greater than the length of the elongated chute (23).

8. A crash rail reinforcement mounting and positioning fixture according to claim 1, characterised in that, The height of the conveying belt (2) is greater than the height of the base (1).

9. A crash rail reinforcement mounting and positioning fixture according to claim 1, wherein, The vertical steel ruler (32) can be automatically telescopic.

Citation Information

Patent Citations

  • Steel-edged rubber waterstop reinforcing fixture

    CN211735532U

  • Anti-collision guardrail steel bar positioning tool

    CN215482569U