Steel bar bending device for road and bridge construction

By combining the gear and worm gear structure with the threaded rod, the clamping spacing and position of the steel bar bending device for road and bridge construction can be flexibly adjusted, solving the problem of insufficient adaptability of existing devices and improving the adaptability and service life of the equipment.

CN223642677UActive Publication Date: 2025-12-09HARBIN VOCATIONAL & TECHNICAL UNIV
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Patent Information

Application Number
CN202423256916.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-29
Publication Date
2025-12-09
Estimated Expiration
2034-12-29

AI Technical Summary

Technical Problem

The limiting rods of existing steel bar bending devices for road and bridge construction have a fixed spacing, which cannot be adjusted according to the actual size of the steel bars, resulting in insufficient adaptability.

Method used

The worm gear is driven to rotate by the hexagonal head at the rear of the gear frame, which in turn drives the gear to move the steel bar clamping plate at the front of the rack frame, thereby adjusting the clamping distance. The threaded rod then drives the guide rail clamping plate to move to adapt to the actual length of the steel bar.

Benefits of technology

It increases the adaptability and service life of the steel bar bending device for road and bridge construction, and can accurately clamp the steel bars according to their actual size and length, avoiding deformation of the rack on one side due to stress.

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Abstract

A road and bridge construction reinforcing steel bar bending device comprises an equipment base, a reinforcing steel bar table, a worm wheel shaft, a gear, a bending disc center shaft, a bending rod base and a bending rod support, the upper portion of the equipment base is fixedly connected with the reinforcing steel bar table, the rear portion of the reinforcing steel bar table is fixedly connected with a guide rail, and the lower portion of a clamping plate support is fixedly connected with a clamping plate positioning seat. The interior of the clamping plate positioning seat is fixedly connected with a threaded cylinder, the rear portion of the guide rail clamping plate is rotationally connected with a threaded rod, the threaded cylinder is matched with the threaded rod and connected with the threaded rod, and the threaded rod is in threaded connection in the threaded cylinder. The clamping plate guide groove is matched with the clamping plate guide rod and connected with the clamping plate guide rod, the clamping plate guide rod slides in the clamping plate guide groove, and the front portion of the clamping plate guide rod is provided with a clamping plate limit.
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Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction, and in particular to a steel bar bending device for road and bridge construction. Background Technology

[0002] An existing patent (publication number: CN219817818U) proposes a steel bar bending device for bridge and road construction. It includes an equipment platform, an adjustment structure, and a bending structure. Two sets of limiting plates are installed on the upper surface of the equipment platform, with the lower surface of the limiting plates fixedly connected to the upper surface of the equipment platform. Steel bars are placed between the two sets of limiting plates, and an adjustment structure is also provided between the two sets of limiting plates. The upper surface of the equipment platform has a through hole, and the lower surface of the equipment platform has a driving structure. However, this device has a limitation: "limiting rods are installed on the upper surface of the adjustment block." The device relies on these limiting rods on the upper part of the equipment platform to fix the steel bars. Since the two sets of limiting rods have a fixed spacing, it may not be able to clamp the steel bars according to their actual dimensions, thus having certain limitations. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing a rebar bending device for road and bridge construction. The device utilizes a hexagonal head at the rear of the gear frame to drive a worm gear, which in turn moves the gears to move the rebar clamping plate at the front of the rack frame. This allows the device to adjust the clamping spacing according to the actual dimensions of the rebar in road and bridge construction, thereby increasing the adaptability of the equipment.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A steel bar bending device for bridge and road construction includes an equipment base, a steel bar platform, a worm gear shaft, a gear, a bending disc central shaft, a bending rod base, and a bending rod support. The upper part of the equipment base is fixedly connected to the steel bar platform, and the rear part of the steel bar platform is fixedly connected to a guide rail. The lower part of the clamping plate support is fixedly connected to a clamping plate positioning seat, and a threaded cylinder is fixedly connected inside the clamping plate positioning seat. The rear part of the guide rail clamping plate is rotatably connected to a threaded rod. The threaded cylinder is adapted to the threaded rod and connects to it; the threaded rod is threadedly connected inside the threaded cylinder. The side of the clamping plate positioning seat has a clamping plate guide groove, and the side of the guide rail clamping plate is fixedly connected to a clamping plate guide rod. The clamping plate guide groove is adapted to the clamping plate guide rod and connects to it. The guide rod and clamping plate guide rod slide inside the clamping plate guide groove. The front part of the clamping plate guide rod has a clamping plate limit. The front part of the clamping plate positioning seat and the rear part of the guide rail clamping plate both have guide rail grooves. The guide rail grooves are adapted to the guide rail and are connected to the guide rail. The guide rail is snapped into the guide rail groove. The rear part of the clamping plate bracket is fixedly connected to the gear frame. The gear frame has a worm groove inside. The worm groove is adapted to the worm and is connected to the worm. The worm rotates inside the worm groove. The rear part of the worm is fixedly connected to the hexagonal head. The side of the gear frame has a worm wheel shaft groove. The worm wheel is fixedly connected to the worm wheel shaft inside. The worm wheel shaft groove is adapted to the worm wheel shaft and is connected to the worm wheel shaft. The worm wheel shaft rotates inside the worm wheel shaft groove. The worm wheel meshes with the worm on the side of the worm.

[0006] The worm gear shaft is fixedly connected to the gear on the side. The clamping plate bracket has a rack frame positioning groove inside. The rear part of the steel bar clamping plate is fixedly connected to the rack frame. The rack frame positioning groove is adapted to the rack frame. The rack frame positioning groove is connected to the rack frame. The rack frame slides inside the rack frame positioning groove. The rack frame has a rack inside.

[0007] The gear meshes inside the rack, the front of the rebar platform is fixedly connected to the second rebar clamp, the rebar clamp and the second rebar clamp are in corresponding positions, the front of the equipment base has a bending table, the bending table has a bending disc central shaft inside, and the bending disc has a connecting pin inside. Beneficial effects

[0008] 1. During the use of this utility model bridge and road construction steel bar bending device, the hexagonal head at the rear of the gear frame drives the worm gear to rotate, which in turn drives the gear to move the steel bar clamping plate at the front of the rack frame. This allows the device to adjust the clamping spacing according to the actual size of the steel bars in bridge and road construction, thereby increasing the adaptability of the device.

[0009] 2. During the use of this utility model of steel bar bending device for road and bridge construction, if it is necessary to adjust the clamping position, the threaded rod at the rear of the clamping plate positioning seat is rotated, causing the threaded rod to move the guide rail clamping plate. At the same time, the guide rail clamping plate and the clamping plate positioning seat are released from the lock on the guide rail. This allows the steel bar clamping plate on the upper part of the clamping plate positioning seat to adjust the clamping position according to the actual length of the steel bar, thereby further increasing the adaptability of the equipment.

[0010] 3. During the use of this utility model bridge and road construction steel bar bending device, the hexagonal head at the rear of the gear frame drives the worm gear to rotate, which in turn drives four sets of gears to move the two sets of racks on the side of the steel bar clamp. As a result, during the use of the equipment, the racks at both ends support the steel bar clamp, avoiding deformation of the racks on one side due to stress, thereby increasing the service life of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the steel bar bending device for road and bridge construction according to the present invention.

[0012] Figure 2 This is a three-dimensional assembly diagram of a steel bar bending device for road and bridge construction according to the present invention.

[0013] Figure 3 This is a partial three-dimensional assembly diagram of the guide rail clamp structure of the steel bar bending device for road and bridge construction according to the present invention.

[0014] Figure 4 This is a three-dimensional assembly diagram of the gear frame structure of a steel bar bending device for road and bridge construction according to the present invention.

[0015] Figure 5 This is a partial three-dimensional assembly diagram of the bending table structure of the steel bar bending device for road and bridge construction according to the present invention. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0017] Example 1:

[0018] A steel bar bending device for bridge and road construction includes an equipment base 01, a steel bar platform 02, a worm gear shaft 19, a gear 20, a bending disc central shaft 27, a bending rod base 31, and a bending rod support 33. The upper part of the equipment base 01 is fixedly connected to the steel bar platform 02, and the rear part of the steel bar platform 02 is fixedly connected to a guide rail 03. The lower part of the clamping plate support 04 is fixedly connected to a clamping plate positioning seat 05, and the interior of the clamping plate positioning seat 05 is fixedly connected to a threaded cylinder 06. The rear part of the guide rail clamping plate 07 is rotatably connected to a threaded rod 08. The threaded cylinder 06 is adapted to the threaded rod 08. During use, if the clamping position needs to be adjusted, the clamping plate is rotated. The threaded rod 08 at the rear of the positioning seat 05 moves the guide rail clamp 07 while simultaneously releasing the guide rail clamp 07 from the clamping seat 05, allowing the steel bar clamp 21 on top of the clamping seat 05 to adjust its clamping position according to the actual length of the steel bar, thus further increasing the adaptability of the equipment. A threaded cylinder 06 connects to the threaded rod 08, with the threaded rod 08 threaded inside the threaded cylinder 06. The side of the clamping seat 05 has a clamping guide groove 09, and the side of the guide rail clamp 07 is fixedly connected to the clamping guide rod 10. The clamping guide groove 09 adapts to the clamping guide rod 10. The clamping plate guide rod 10 is connected to the groove 09. The clamping plate guide rod 10 slides inside the clamping plate guide groove 09. The front part of the clamping plate guide rod 10 has a clamping plate limit 11. The front part of the clamping plate positioning seat 05 and the rear part of the guide rail clamping plate 07 both have guide rail grooves 12. The guide rail grooves 12 are adapted to the guide rail 03. The guide rail grooves 12 are connected to the guide rail 03. The guide rail 03 is inserted into the guide rail grooves 12. The rear part of the clamping plate bracket 04 is fixedly connected to the gear frame 13. The gear frame 13 has a worm groove 14 inside. The worm groove 14 is adapted to the worm 15. The worm groove 14 is connected to the worm 15. The worm 15 rotates inside the worm groove 14. The rear part of the worm 15 is fixedly connected to the hexagonal head 16. Next, during the use of the rebar bending device for road and bridge construction, the hexagonal head 16 at the rear of the gear frame 13 drives the worm gear 15 to rotate, which in turn drives the gear 20 to move the rebar clamp 21 at the front of the rack frame 23. This allows the equipment to adjust the clamping spacing according to the actual size of the rebar in road and bridge construction, thereby increasing the adaptability of the equipment. The gear frame 13 has a worm gear shaft groove 17 on its side. The worm gear 18 is fixedly connected to the worm gear shaft 19. The worm gear shaft groove 17 is adapted to the worm gear shaft 19 and connects to the worm gear shaft 19. The worm gear shaft 19 rotates inside the worm gear shaft groove 17, and the worm gear 18 meshes with the side of the worm gear 15.

[0019] Example 2:

[0020] The worm gear shaft 19 of this utility model is fixedly connected to the gear 20 on the side. During the use of the steel bar bending device for road and bridge construction, the worm 15 is driven to rotate by the hexagonal head 16 at the rear of the gear frame 13. The worm 15 drives the four sets of gears 20 to move the two sets of racks 24 on the side of the steel bar clamp 21. Thus, during the use of the equipment, since the racks 24 at both ends support the steel bar clamp 21, the racks 24 on one side are prevented from being deformed by force, thereby increasing the service life of the equipment. The clamp bracket 04 has rack frame positioning grooves 22 inside. The rear of the steel bar clamp 21 is fixedly connected to the rack frame 23. The rack frame positioning grooves 22 are adapted to the rack frame 23. The rack frame positioning grooves 22 are connected to the rack frame 23. The rack frame 23 slides inside the rack frame positioning grooves 22. The rack frame 23 has racks 24 inside.

[0021] Example 3:

[0022] The gear 20 of this utility model meshes inside the rack 24. The front part of the rebar platform 02 is fixedly connected to the second rebar clamp 25. The rebar clamp 21 and the second rebar clamp 25 are positioned correspondingly. The front part of the equipment base 01 has a bending platform 26. The bending platform 26 has a bending disc central shaft 27 inside. The bending disc 28 has a connecting pin 29 inside.

[0023] Example 4:

[0024] The bending disc central shaft 27 of this utility model is adapted to the docking pin 29. The bending disc central shaft 27 is connected to the docking pin 29. The docking pin 29 rotates inside the bending disc central shaft 27. The side of the bending disc 28 is fixedly connected to the handle 30. The front of the bending disc 28 is fixedly connected to the handle 30. The lead screw 32 is rotatably connected inside the bending rod base 31.

[0025] Example 5:

[0026] The bending rod bracket 33 of this utility model slides inside the bending rod base 31, the bending rod base 31 is threaded inside the lead screw 32, the upper part of the bending rod bracket 33 is fixedly connected to the bending rod 34, the upper part of the bending disc central shaft 27 is fixedly connected to the inner support rod 35, and the bending rod 34 and the inner support rod 35 are in corresponding positions.

[0027] Example 6:

[0028] Installation steps of this utility model: Fix the upper part of the equipment base 01 to the rebar platform 02; fix the rear part of the rebar platform 02 to the guide rail 03; fix the lower part of the clamping plate bracket 04 to the clamping plate positioning seat 05; fix the inside of the clamping plate positioning seat 05 to the threaded cylinder 06; rotatably connect the rear part of the guide rail clamping plate 07 to the threaded rod 08; thread the threaded rod 08 inside the threaded cylinder 06; fix the side part of the guide rail clamping plate 07 to the clamping plate guide rod 10; slide the clamping plate guide rod 10 inside the clamping plate guide groove 09; insert the guide rail 03 into the guide rail groove 12; fix the rear part of the clamping plate bracket 04 to the gear frame 13; rotate the worm 15 inside the worm groove 14; fix the rear part of the worm 15 to the hexagonal head 16; fix the inside of the worm wheel 18 to the worm wheel shaft 19; rotate the worm wheel shaft 19 inside the worm wheel shaft groove 17; mesh the worm wheel 18 on the side of the worm 15; The worm gear shaft 19 is fixedly connected to the gear 20 on the side. The rear of the rebar clamp 21 is fixedly connected to the rack frame 23. The rack frame 23 slides inside the rack frame positioning groove 22. The gear 20 meshes inside the rack 24. The front of the rebar platform 02 is fixedly connected to the second rebar clamp 25. The positions of the rebar clamp 21 and the second rebar clamp 25 are aligned. The butt pin 29 rotates inside the bending disc central shaft 27. The side of the bending disc 28 is fixedly connected to the handle 30. The front of the bending disc 28 is fixedly connected to the handle 30. The lead screw 32 is rotatably connected inside the bending rod base 31. The bending rod bracket 33 slides inside the bending rod base 31. The bending rod base 31 is threaded inside the lead screw 32. The upper part of the bending rod bracket 33 is fixedly connected to the bending rod 34. The upper part of the bending disc central shaft 27 is fixedly connected to the inner support rod 35. The positions of the bending rod 34 and the inner support rod 35 are aligned.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steel bar bending device for road and bridge construction, characterized in that: The equipment includes a base (01), a rebar platform (02), a worm gear shaft (19), a gear (20), a bending disc center shaft (27), a bending rod base (31), and a bending rod bracket (33). The upper part of the base (01) is fixedly connected to the rebar platform (02), the rear part of the rebar platform (02) is fixedly connected to the guide rail (03), the lower part of the clamping plate bracket (04) is fixedly connected to the clamping plate positioning seat (05), the inside of the clamping plate positioning seat (05) is fixedly connected to the threaded cylinder (06), the rear part of the guide rail clamping plate (07) is rotatably connected to the threaded rod (08), the threaded cylinder (06) is adapted to the threaded rod (08), the threaded cylinder (06) is connected to the threaded rod (08), and the threaded rod (08) is threaded inside the threaded cylinder (06). The positioning seat (05) has a clamping plate guide groove (09) on its side. The side of the guide rail clamp (07) is fixedly connected to the clamping plate guide rod (10). The clamping plate guide groove (09) is adapted to the clamping plate guide rod (10). The clamping plate guide groove (09) is connected to the clamping plate guide rod (10). The clamping plate guide rod (10) slides inside the clamping plate guide groove (09). The front of the clamping plate guide rod (10) has a clamping plate limit (11). The front of the clamping plate positioning seat (05) and the rear of the guide rail clamp (07) both have guide rail grooves (12). The guide rail grooves (12) are adapted to the guide rail (03). The guide rail grooves (12) are connected to the guide rail (03). The guide rail (03) is inserted into the guide rail groove (12). The rear of the clamping plate bracket (04) is fixedly connected to the gear frame (13).

2. The steel reinforcement bending device for road and bridge construction according to claim 1, characterized in that: The gear frame (13) has a worm groove (14) inside, which is adapted to the worm (15). The worm groove (14) connects to the worm (15), and the worm (15) rotates inside the worm groove (14). The rear of the worm (15) is fixedly connected to the hexagonal head (16). The side of the gear frame (13) has a worm wheel shaft groove (17), which is fixedly connected to the worm wheel shaft (19) inside the worm wheel (18). The worm wheel shaft groove (17) is adapted to the worm wheel shaft (19), and the worm wheel shaft groove (17) connects to the worm wheel shaft (19). The worm wheel shaft (19) rotates inside the worm wheel. The wheel shaft groove (17) rotates inside, and the worm gear (18) meshes with the side of the worm (15); the side of the worm gear shaft (19) is fixedly connected to the gear (20), and the clamp bracket (04) has a rack frame positioning groove (22) inside. The rear of the steel bar clamp (21) is fixedly connected to the rack frame (23), the rack frame positioning groove (22) is adapted to the rack frame (23), the rack frame positioning groove (22) is connected to the rack frame (23), the rack frame (23) slides inside the rack frame positioning groove (22), and the rack frame (23) has a rack (24) inside.

3. The steel reinforcement bending device for road and bridge construction according to claim 2, characterized in that: The gear (20) meshes inside the rack (24). The front part of the rebar platform (02) is fixedly connected to the second rebar clamp (25). The rebar clamp (21) and the second rebar clamp (25) are in corresponding positions. The front part of the equipment base (01) has a bending platform (26). The bending platform (26) has a bending disc central shaft (27) inside. The bending disc (28) has a connecting pin (29) inside.

4. The steel reinforcement bending device for road and bridge construction according to claim 3, characterized in that: The bending disc central shaft (27) is adapted to the docking pin (29). The bending disc central shaft (27) is connected to the docking pin (29). The docking pin (29) rotates inside the bending disc central shaft (27). The side of the bending disc (28) is fixedly connected to the handle (30). The front of the bending disc (28) is fixedly connected to the handle (30). The lead screw (32) is rotatably connected inside the bending rod base (31).

5. A steel reinforcement bending device for road and bridge construction according to claim 4, characterized in that: The bending rod bracket (33) slides inside the bending rod base (31), the bending rod base (31) is threaded inside the lead screw (32), the upper part of the bending rod bracket (33) is fixedly connected to the bending rod (34), the upper part of the bending disc central shaft (27) is fixedly connected to the inner support rod (35), and the bending rod (34) and the inner support rod (35) are in corresponding positions.

Citation Information

Patent Citations

  • Adjustable bending device for traffic transportation road and bridge construction

    CN219817818U