Bridge guardrail reinforcing bar positioning device

Abstract

The application discloses a bridge guardrail reinforcing steel positioning device, which comprises a bottom plate, the end portions of two groups of first adjusting lead screws are fixedly connected with second bevel gears, the second bevel gears are engaged with first bevel gears, lifting plates are threadedly installed on the two groups of first adjusting lead screws, and a plurality of positioning indicating rods are fixedly installed on the side portions of the lifting plates; positioning mechanisms for temporarily fixing longitudinal reinforcing steels are arranged in the plurality of positioning indicating rods; through the design of the speed reducer motor, the rotating rod, the first bevel gear, the second bevel gear and the lifting plate, the rotating rod is driven to rotate by the speed reducer motor, the first bevel gear drives the second bevel gear to rotate, a plurality of first adjusting lead screws are simultaneously rotated, the lifting plate can be adjusted in lifting through the simultaneous rotation of the plurality of first adjusting lead screws, the height of the positioning indicating rod can be quickly adjusted according to the requirement when the lifting plate is adjusted, the required time is reduced when the adjustment is performed, and the construction progress is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of bridge engineering construction technology, and specifically relates to a bridge guardrail reinforcement positioning device. Background Technology

[0002] To reduce the risk of vehicles falling off the sides of bridges while driving on them, bridge crash barriers are usually installed on both sides. The barriers are formed by an internal steel reinforcement frame and concrete with the aid of a molding mold. The steel reinforcement of the barriers consists of multiple horizontal steel bars and multiple longitudinal steel bars. The longitudinal steel bars are arranged in parallel at equal intervals from one side to the other, and the horizontal steel bars are arranged in parallel at equal intervals from top to bottom.

[0003] The prior art provides a bridge anti-collision guardrail rebar locator (publication number CN220468643U). This utility model includes a support unit, a positioning unit, and a positioning indicator rod, as well as an adjustment unit and a moving unit. The adjustment unit includes an adjustment screw movably disposed inside the center of the positioning unit, and a sliding plate movably disposed between the inner side walls of the support unit for adjusting the position of the positioning indicator rod. The moving unit includes a rotating shaft movably disposed on both sides of the support unit, and a wheel component disposed inside the support unit for flexibly moving the support unit.

[0004] The aforementioned bridge guardrail rebar positioning devices rely on manual operation of handwheels to adjust screws during actual use. This requires repeated handwheel rotation for large-scale height adjustments, which is time-consuming and labor-intensive, impacting construction progress. Furthermore, they lack electrification or rapid locking capabilities. Additionally, they lack temporary fixation for longitudinal rebars, requiring construction workers to manually support the longitudinal rebars on embedded rebars before binding them. This process easily leads to displacement or tilting of the longitudinal rebars, causing deviations in rebar spacing and elevation that exceed specifications, affecting the overall alignment and crashworthiness of the guardrail. Therefore, we propose a bridge guardrail rebar positioning device to address these problems in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a bridge railing rebar positioning device to solve the problems mentioned in the background art, such as the inability to quickly adjust the height of the positioning indicator rod as needed and the lack of temporary fixation for longitudinal rebar, which leads to easy displacement or tilting of the rebar during the binding process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bridge railing reinforcement positioning device includes a base plate, a bracket fixedly installed on the top of the base plate, a reduction motor fixedly installed on the side of the bracket, a rotating rod fixedly connected to the transmission shaft of the reduction motor via a coupling, two sets of first bevel gears fixedly connected to the rotating rod, two sets of first adjusting screws movably installed inside the base plate, a second bevel gear fixedly connected to the end of each of the two sets of first adjusting screws, the second bevel gear meshing with the first bevel gear, a lifting plate threaded onto the two sets of first adjusting screws, and multiple sets of positioning indicator rods fixedly installed on the side of the lifting plate;

[0008] Each of the aforementioned positioning indicator rods is equipped with a positioning mechanism for temporary fixing of longitudinal reinforcing bars.

[0009] Preferably, the positioning mechanism includes a movable seat, a clamping block, a second adjusting screw, and a mounting block. The second adjusting screw is movably installed inside the positioning indicator rod, the mounting block is fixedly connected to the bottom of the positioning indicator rod, the movable seat is threaded onto the second adjusting screw, the movable seat contacts the inner wall of the positioning indicator rod, and the clamping block is fixedly installed on the side of the movable seat and the mounting block.

[0010] Preferably, the side of the bracket is provided with a manual adjustment mechanism, which includes a fixed plate, a driven gear, a transmission rod, a driving gear, a connecting seat, a rotating handle, a conical block, a movable plate, and a connecting rod. The transmission rod is movably installed on the side of the bracket, the driven gear is fixedly connected to the surface of the rotating rod, and the driving gear is fixedly connected to the end of the transmission rod. The driving gear meshes with the driven gear.

[0011] Preferably, the movable disc is movably mounted on the side of the bracket, the connecting rod is symmetrically fixedly connected to the side of the movable disc, the fixed disc is sleeved on the connecting rod, the rotating handle is movably mounted inside the fixed disc, the conical block is fixedly connected to the end of the rotating handle, the connecting seat is fixedly connected to the end of the transmission rod, and the connecting seat has a conical groove adapted to the conical block.

[0012] Preferably, a first push spring is sleeved on the connecting rod, one end of the first push spring abutting against the side of the movable disk, and the other end of the first push spring abutting against the side of the fixed disk.

[0013] Preferably, two sets of guide rods are symmetrically fixedly installed inside the bracket, and the lifting plate is slidably installed on the guide rods.

[0014] Preferably, each of the multiple sets of positioning indicator rods has a stop block at its top, and multiple sets of corresponding reference rods are fixedly installed on the guide rod, with the reference rods positioned below the positioning indicator rods.

[0015] Preferably, a ruler is fixedly installed inside the bracket, and an indicator block corresponding to the ruler is fixedly installed on the side of the lifting plate.

[0016] Preferably, two sets of rotating seats are symmetrically fixedly installed on the side of the base plate. Each set of rotating seats has a damped rotating storage cylinder installed inside. A support block is inserted into the storage cylinder. A second push spring is fixedly installed inside the storage cylinder. One end of the second push spring is fixedly installed inside the support block. Positioning blocks are fixedly connected to the top and bottom of the support block. A limiting groove for sliding of the positioning block is opened in the storage cylinder. The positioning block is set in the limiting groove. A hand-tightening screw is threaded on the storage cylinder. The end of the hand-tightening screw abuts against the surface of the support block. A clamping rod for support is threaded on the support block.

[0017] Preferably, the side of the base plate is fixedly equipped with multiple sets of symmetrically arranged hand-cranked lifting casters.

[0018] Technical effects and advantages of the present invention: Compared with the prior art, the bridge railing reinforcement positioning device proposed in this invention has the following advantages:

[0019] 1. This invention, through the design of a structure including a geared motor, a rotating rod, a first bevel gear, a second bevel gear, and a lifting plate, uses a geared motor to drive the rotating rod to rotate, which in turn causes the first bevel gear to drive the second bevel gear to simultaneously rotate multiple sets of first adjusting screws. The simultaneous rotation of multiple sets of first adjusting screws allows for the raising and lowering adjustment of the lifting plate. By quickly adjusting the height of the positioning indicator rod as needed during the adjustment of the lifting plate, the time required for adjustment is reduced, significantly improving the construction progress.

[0020] 2. The present invention, through the design of the positioning mechanism, can position and fix the longitudinal steel bars, preventing the longitudinal steel bars from shifting or tilting during the binding process, which would cause the steel bar spacing and elevation deviation to exceed the specification requirements, thus preventing the overall alignment and anti-collision performance of the guardrail from being affected. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the positioning mechanism of the present invention;

[0025] Figure 5 This is a cross-sectional structural schematic diagram of the storage tube of the present invention.

[0026] In the diagram: 1. Base plate; 2. Bracket; 3. Gear motor; 4. Rotating rod; 5. Stop block; 6. First bevel gear; 7. Second bevel gear; 8. First adjusting screw; 9. Lifting plate; 10. Guide rod; 11. Positioning indicator rod; 12. Moving seat; 13. Clamping block; 14. Second adjusting screw; 15. Tightening screw; 16. Mounting block; 17. Indicator block; 18. Ruler; 19. Fixed plate; 20. Reference rod; 21. Hand-cranked lifting moving wheel; 22. Driven gear; 23. Transmission rod; 24. Driving gear; 25. Connecting seat; 26. Rotating handle; 27. Conical block; 28. Movable plate; 29. ​​First push spring; 30. Connecting rod; 31. Conical groove; 32. Rotating seat; 33. Storage cylinder; 34. Support block; 35. Clamping rod; 36. Second push spring; 37. Positioning block; 38. Limiting groove. Detailed Implementation

[0027] 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. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. 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.

[0028] This invention provides, for example Figure 1-5 A bridge railing reinforcement positioning device is shown, comprising a base plate 1, a bracket 2 fixedly installed on the top of the base plate 1, a reduction motor 3 fixedly installed on the side of the bracket 2, a rotating rod 4 fixedly connected to the conveying shaft of the reduction motor 3 via a coupling, two sets of first bevel gears 6 fixedly connected to the rotating rod 4, two sets of first adjusting screws 8 movably installed inside the base plate 1, and a second bevel gear 7 fixedly connected to the end of each of the two sets of first adjusting screws 8, the second bevel gear 7 meshing with the first bevel gear 6, a lifting plate 9 threadedly installed on the two sets of first adjusting screws 8, and multiple sets of positioning indicator rods 11 fixedly installed on the side of the lifting plate 9;

[0029] Each of the multiple sets of positioning indicator rods 11 is equipped with a positioning mechanism for temporary fixing of longitudinal reinforcing bars.

[0030] In an optional embodiment: the positioning mechanism includes a movable seat 12, a clamping block 13, a second adjusting screw 14, and a mounting block 16. The second adjusting screw 14 is movably installed inside the positioning indicator rod 11, the mounting block 16 is fixedly connected to the bottom of the positioning indicator rod 11, the movable seat 12 is threaded onto the second adjusting screw 14, the movable seat 12 is in contact with the inner wall of the positioning indicator rod 11, and the clamping block 13 is fixedly installed on the side of the movable seat 12 and the mounting block 16.

[0031] It should be noted that the movable seat 12, clamping block 13, second adjusting screw 14 and mounting block 16 cooperate to clamp and fix the longitudinal steel bars, so that the longitudinal steel bars are naturally perpendicular to the pre-embedded steel bars, preventing the longitudinal steel bars from shifting or tilting during the binding process. At this time, the construction personnel can bind the longitudinal steel bars. In addition, the movable seat 12 contacts the inner wall of the positioning indicator rod 11, which guides the movable seat 12, so that the movable seat 12 can stably drive a set of clamping blocks 13 to move.

[0032] In an optional embodiment: the side of the bracket 2 is provided with a manual adjustment mechanism, which includes a fixed plate 19, a driven gear 22, a transmission rod 23, a driving gear 24, a connecting seat 25, a rotating handle 26, a conical block 27, a movable plate 28 and a connecting rod 30. The transmission rod 23 is movably installed on the side of the bracket 2. The driven gear 22 is fixedly connected to the surface of the rotating rod 4. The driving gear 24 is fixedly connected to the end of the transmission rod 23. The driving gear 24 meshes with the driven gear 22.

[0033] It should be noted that, through the cooperation of the fixed plate 19, driven gear 22, transmission rod 23, driving gear 24, connecting seat 25, rotating handle 26, conical block 27, movable plate 28 and connecting rod 30, the positions of the lifting plate 9 and positioning indicator rod 11 can be finely adjusted. When the lifting plate 9 moves, the indicator block 17 can move on the ruler 18, so that the position can be quantitatively adjusted as needed. Through the cooperation of the fixed plate 19 and connecting rod 30, the rotating handle 26 can be installed on the movable plate 28.

[0034] In an optional embodiment: the movable disk 28 is movably mounted on the side of the bracket 2, the connecting rod 30 is symmetrically fixedly connected to the side of the movable disk 28, the fixed disk 19 is sleeved on the connecting rod 30, the rotating handle 26 is movably mounted in the fixed disk 19, the conical block 27 is fixedly connected to the end of the rotating handle 26, the connecting seat 25 is fixedly connected to the end of the transmission rod 23, and the connecting seat 25 has a conical groove 31 that matches the conical block 27.

[0035] It should be noted that the engagement of the conical block 27 with the conical groove 31 allows the rotating handle 26 to be separated from the transmission rod 23.

[0036] In an optional embodiment: a first push spring 29 is sleeved on the connecting rod 30, one end of the first push spring 29 abuts against the side of the movable disk 28, and the other end of the first push spring 29 abuts against the side of the fixed disk 19.

[0037] It should be noted that the first push spring 29 pushes the fixed plate 19, causing the conical block 27 to move out of the conical groove 31. After the position of the positioning indicator rod 11 is finely adjusted, the rotating handle 26 can automatically separate from the transmission rod 23.

[0038] In an optional embodiment: two sets of guide rods 10 are symmetrically fixedly installed inside the bracket 2, and the lifting plate 9 is slidably installed on the guide rods 10.

[0039] It should be noted that the guide rod 10 is used to position the lifting plate 9, so that the lifting plate 9 can stably drive the positioning indicator rod 11 to move.

[0040] In an optional embodiment: a stop block 5 is provided on the top of each of the multiple sets of positioning indicator rods 11, and multiple sets of reference rods 20 corresponding to the positioning indicator rods 11 are fixedly installed on the guide rod 10, with the reference rods 20 located below the positioning indicator rods 11.

[0041] It should be noted that, by setting the stop block 5, when it is necessary to tie the transverse steel bar to the longitudinal steel bar after the longitudinal steel bar is tied, the positioning indicator rod 11 is inserted into the space between the adjacent longitudinal steel bars, the transverse steel bar is placed on the top of the positioning indicator rod 11, the positioning indicator rod 11 supports the transverse steel bar, and the moving device allows the stop block 5 to press the transverse steel bar against the longitudinal steel bar. By tying the transverse steel bar, the transverse steel bar is tied to the longitudinal steel bar, which makes it easier to tie the transverse steel bar to the longitudinal steel bar.

[0042] In an optional embodiment: a ruler 18 is fixedly installed inside the bracket 2, and an indicator block 17 corresponding to the ruler 18 is fixedly installed on the side of the lifting plate 9.

[0043] In an optional embodiment: two sets of rotating seats 32 are symmetrically fixedly installed on the side of the base plate 1. Each set of rotating seats 32 has a damped rotating storage cylinder 33 installed inside. A support block 34 is inserted into the storage cylinder 33. A second push spring 36 is fixedly installed inside the storage cylinder 33. One end of the second push spring 36 is fixedly installed inside the support block 34. Positioning blocks 37 are fixedly connected to the top and bottom of the support block 34. A limiting groove 38 for sliding of the positioning block 37 is opened in the storage cylinder 33. The positioning block 37 is set in the limiting groove 38. A hand screw 15 is threaded on the storage cylinder 33. The end of the hand screw 15 abuts against the surface of the support block 34. A clamping rod 35 for support is threaded on the support block 34.

[0044] It should be noted that the rotating seat 32, the storage tube 33, the support block 34 and the clamping rod 35 work together to support the device and improve its stability during use. The second push spring 36 can push the support block 34, which can easily move the support block 34 out of the storage tube 33. The positioning block 37 works with the limiting groove 38 to position the support block 34 and prevent it from falling out of the storage tube 33. The hand screw 15 is used to fix the support block 34.

[0045] In an optional embodiment, a plurality of symmetrically arranged hand-cranked lifting casters 21 are fixedly installed on the side of the base plate 1.

[0046] It should be noted that the hand-cranked lifting caster 21 facilitates the movement of the device.

[0047] In practice, the device is moved to the construction position, and the positioning indicator rod 11 is brought close to the longitudinal reinforcement. The reduction motor 3 is started, and the output shaft of the reduction motor 3 rotates, driving the rotating rod 4 to rotate. When the rotating rod 4 rotates, it drives the first bevel gear 6 to drive the second bevel gear 7 to rotate, which in turn drives the first adjusting screw 8 to rotate. When the first adjusting screw 8 rotates, it drives the lifting plate 9 to move upward. When the lifting plate 9 moves upward, it drives the positioning indicator rod 11 to move. The height difference between the longitudinal reinforcement of the guardrail and the positioning indicator rod 11 is observed, and the binding height of the longitudinal reinforcement of the guardrail is adjusted according to the height difference. By pushing the rotating handle 26, the end of the rotating handle 26... After the conical block 27 is inserted into the conical groove 31, the rotating handle 26 is rotated, causing the rotating handle 26 to drive the transmission rod 23 to rotate through the conical block 27 and the conical groove 31. When the transmission rod 23 rotates, it drives the drive gear 24 to rotate. When the drive gear 24 rotates, it drives the rotating rod 4 to rotate through the driven gear 22. When the rotating rod 4 rotates, it drives the first adjusting screw 8 to rotate through the first conical gear 6 and the second conical gear 7. The first adjusting screw 8, in conjunction with the lifting plate 9, can finely adjust the positioning indicator rod 11. The indicator block 17 moves with the lifting plate 9, and the vertical position of the ruler 18 pointed to by the indicator block 17 is quantitatively adjusted.

[0048] By placing the upper end of the longitudinal reinforcing bar between the movable seat 12 and the mounting block 16, and rotating the second adjusting screw 14, the movable seat 12 is moved when the second adjusting screw 14 rotates. When the movable seat 12 moves, a set of clamping blocks 13 are brought close to the longitudinal reinforcing bar and clamped and fixed, so that the longitudinal reinforcing bar is naturally perpendicular to the pre-embedded reinforcing bar, preventing the longitudinal reinforcing bar from shifting or tilting during the binding process. At this time, the construction personnel can bind the longitudinal reinforcing bar.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bridge guardrail reinforcement positioning device comprising a base plate (1), characterized in that: A bracket (2) is fixedly installed on the top of the base plate (1), and a geared motor (3) is fixedly installed on the side of the bracket (2). The conveying shaft of the geared motor (3) is fixedly connected to a rotating rod (4) through a coupling. Two sets of first bevel gears (6) are fixedly connected on the rotating rod (4). Two sets of first adjusting screws (8) are movably installed inside the base plate (1). The ends of the two sets of first adjusting screws (8) are fixedly connected to second bevel gears (7). The second bevel gears (7) mesh with the first bevel gears (6). Lifting plates (9) are threaded onto the two sets of first adjusting screws (8). Multiple sets of positioning indicator rods (11) are fixedly installed on the side of the lifting plate (9). A stop block (5) is provided on the top of each of the multiple sets of positioning indicator rods (11). Two sets of guide rods (10) are symmetrically fixedly installed inside the bracket (2), and the lifting plate (9) is slidably installed on the guide rods (10); Each of the multiple sets of positioning indicator rods (11) is provided with a positioning mechanism for temporary fixing of longitudinal reinforcing bars. The positioning mechanism includes a movable seat (12), a clamping block (13), a second adjusting screw (14), and an installation block (16). The second adjusting screw (14) is movably installed inside the positioning indicator rod (11). The installation block (16) is fixedly connected to the bottom of the positioning indicator rod (11). The movable seat (12) is threaded onto the second adjusting screw (14). The movable seat (12) contacts the inner wall of the positioning indicator rod (11). The clamping block (13) is fixedly installed on the side of the movable seat (12) and the installation block (16). The side of the bracket (2) is provided with a manual adjustment mechanism, which includes a fixed plate (19), a driven gear (22), a transmission rod (23), a driving gear (24), a connecting seat (25), a rotating handle (26), a conical block (27), a movable plate (28), and a connecting rod (30). The transmission rod (23) is movably installed on the side of the bracket (2). The driven gear (22) is fixedly connected to the surface of the rotating rod (4). The driving gear (24) is fixedly connected to the end of the transmission rod (23). The driving gear (24) meshes with the driven gear (22).

2. A bridge guardrail reinforcement positioning device according to claim 1, characterized in that: The movable disc (28) is movably installed on the side of the bracket (2). The connecting rod (30) is symmetrically fixedly connected to the side of the movable disc (28). The fixed disc (19) is sleeved on the connecting rod (30). The rotating handle (26) is movably installed in the fixed disc (19). The conical block (27) is fixedly connected to the end of the rotating handle (26). The connecting seat (25) is fixedly connected to the end of the transmission rod (23). The connecting seat (25) has a conical groove (31) that matches the conical block (27).

3. A bridge guardrail reinforcement positioning device according to claim 2, characterized in that: A first push spring (29) is sleeved on the connecting rod (30). One end of the first push spring (29) abuts against the side of the movable disk (28), and the other end of the first push spring (29) abuts against the side of the fixed disk (19).

4. The bridge guardrail reinforcement positioning device of claim 1, wherein: Multiple sets of reference rods (20) corresponding to the positioning indicator rod (11) are fixedly installed on the guide rod (10), and the reference rods (20) are located below the positioning indicator rod (11).

5. The bridge guardrail reinforcement positioning device of claim 1, wherein: A ruler (18) is fixedly installed inside the bracket (2), and an indicator block (17) corresponding to the ruler (18) is fixedly installed on the side of the lifting plate (9).

6. A bridge guardrail reinforcement positioning device according to claim 1, characterized in that: Two sets of rotating seats (32) are symmetrically fixedly installed on the side of the base plate (1). Each set of rotating seats (32) has a storage cylinder (33) installed in a damped rotation. A support block (34) is inserted into the storage cylinder (33). A second push spring (36) is fixedly installed inside the storage cylinder (33). One end of the second push spring (36) is fixedly installed inside the support block (34). A positioning block (37) is fixedly connected to the top and bottom of the support block (34). A limiting groove (38) for sliding of the positioning block (37) is opened in the storage cylinder (33). The positioning block (37) is set in the limiting groove (38). A hand screw (15) is threaded on the storage cylinder (33). The end of the hand screw (15) abuts against the surface of the support block (34). A clamping rod (35) for support is threaded on the support block (34).

7. A bridge guardrail reinforcement positioning device as defined in claim 1, wherein: The base plate (1) is fixedly installed with multiple sets of symmetrically arranged hand-cranked lifting casters (21).

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