T-beam construction device for road bridge

Abstract

The invention relates to the technical field of road bridge T-beam forming, in particular to a road bridge T-beam construction device which comprises a bottom formwork and two demolding frames located on the two sides of the bottom formwork and arranged in the length direction of a T-beam, and each demolding frame comprises a fixed formwork body, a movable formwork body and an auxiliary formwork body. The movable mold frame and the fixed mold frame are connected through an adjusting device, the adjusting device drives the movable mold frame to move in the length direction of the fixed mold frame so as to adjust the length of the demolding frame, then auxiliary mold frames are added or reduced between the movable mold frame and the fixed mold frame, and the auxiliary mold frames have various length specifications. The problems that in existing T-beam construction, the length of a formwork cannot be adjusted, and construction requirements of T-beams with different lengths are difficult to meet are solved, the movable formwork can move relative to the fixed formwork through the adjusting device, the length of the demolding frame can be rapidly adjusted, and the construction efficiency and flexibility are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of T-beam forming for road bridges, and particularly to a T-beam construction device for road bridges. Background Art

[0002] At present, a T-shaped precast bridge formwork with the patent publication number of CN209339001U includes side formworks, a bottom formwork and end formworks. The side formworks include two side frames which are installed on both sides of the bottom formwork, and the end formworks are arranged at both ends of the bottom formwork and connected to the two side formworks. The side frame includes a locking frame and a side pressing plate. The side pressing plate is adapted to the side surface of the T-shaped precast bridge. The locking frames are multiple and evenly arranged along the length direction of the side pressing plate. The locking frame includes a support and a locking plate. The support is connected to the side pressing plate, and a clamping groove is provided at the top of the support. The locking plate is inserted into the clamping groove and is hingedly connected to the support. A locking hole is provided at the top of the locking plate. By combining the side pressing plate and the locking frame to form the side frame, and using the support and the locking plate to form the locking frame, and cooperating with the clamping groove provided on the support, the locking plate and the support are hingedly connected through a rotating shaft, so that in the using process, the problem of interference between the high density of the reinforcing ribs and the locking plate can be effectively avoided, making its use more convenient and fast, and the problem of reduction in the strength of the T-shaped precast bridge caused by cutting the reinforcing ribs can be avoided.

[0003] However, there are also some problems with the above precast T-beam formwork. The above precast T-beam formwork lacks an adjusting device, that is, it is difficult for a precast T-beam formwork to pour bridge precast members of different lengths. That is, when it is necessary to pour bridge precast members of different lengths, a new precast T-beam formwork needs to be replaced, which not only increases the construction cost but also reduces the construction efficiency. Summary of the Invention

[0004] Therefore, in view of the above problems, the present invention proposes a T-beam construction device for road bridges.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A T-beam construction device for road bridges includes a bottom formwork and two demoulding frames located on both sides of the bottom formwork and arranged along the length of the T-beam. The two demoulding frames respectively include a fixed formwork, a movable formwork and an auxiliary formwork. The movable formwork and the fixed formwork are connected by an adjusting device. The adjusting device drives the movable formwork to move along the length direction of the fixed formwork, so as to adjust the length of the demoulding frame. Then, the auxiliary formwork is increased or decreased between the movable formwork and the fixed formwork. The auxiliary formwork has a variety of length specifications.

[0006] Further improvement: The adjusting device includes a plurality of clamping seats, at least two parallel fixed rods, and a driving mechanism. The clamping seats are fixedly arranged on the movable die carrier. One end of each fixed rod is fixed on the fixed die carrier, and the other end passes through the clamping seats. The driving mechanism is arranged on one of the clamping seats, and a rack is arranged on the fixed rod passing through this clamping seat. The driving mechanism is a motor, and a gear meshing with the rack is arranged at the output end of the motor.

[0007] Further improvement: A connecting rod is arranged between the fixed rods.

[0008] Further improvement: Ball bearings are arranged on the contact surfaces between the clamping seats and the fixed rods.

[0009] Further improvement: A universal caster assembly is installed at the bottom of the movable die carrier.

[0010] Further improvement: A support rod is arranged on one side of the movable die carrier facing the fixed die carrier, and a hollow rod for the support rod to penetrate is arranged on the fixed die carrier.

[0011] Further improvement: The fixed die carrier and the auxiliary die carrier, and the movable die carrier and the auxiliary die carrier are fixedly connected by a plurality of nuts.

[0012] By adopting the foregoing technical solutions, the beneficial effects of the present invention are as follows: 1. By arranging an adjusting device between the movable die carrier and the fixed die carrier, the present invention can conveniently and quickly adjust the overall length of the demoulding frame to meet the pouring requirements of T-beam precast members of different lengths, effectively avoiding frequent replacement of the die carrier, reducing construction costs, and significantly improving construction efficiency. 2. In the adjusting device, the driving mechanism adopts a motor and a gear-rack transmission mode, which can more accurately control the moving distance of the movable die carrier, and after the adjustment is completed, it is not easy to slide, ensuring the dimensional accuracy of the T-beam precast members. 3. By arranging a connecting rod between the fixed rods, the stability of the fixed rods is enhanced, preventing deformation or displacement during the adjustment process. At the same time, the arrangement of the connecting rod can also play a limiting role in the adjustment of the movable die carrier, preventing excessive adjustment and causing the rack and the gear to disengage. 4. The arrangement of the ball bearings effectively reduces the frictional resistance of the fixed rods during the movement process, making the adjustment process smoother, reducing energy consumption, and extending the service life of the device. 5. The arrangement of the universal caster assembly plays a certain supporting role in the movement of the movable die carrier, making the movable die carrier more flexible during the movement process. 6. The arrangement of the support rod plays a positioning and a certain degree of supporting role in the movement of the movable die carrier. 7. The fixed mold base and the auxiliary mold base, as well as the movable mold base and the auxiliary mold base, are fixedly connected by a plurality of nuts. This connection method facilitates the assembly and disassembly of the mold base, improving the convenience and efficiency of construction. At the same time, the nut fixed connection also has high connection strength and stability, which can ensure the overall performance of the demolding frame during the pouring process. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural view of the present invention.

[0014] Figure 2 is a schematic structural view of the demolding frame of the present invention.

[0015] Figure 3 is a schematic structural view of the demolding frame of the present invention from another angle.

[0016] Figure 4 is Figure 3 an enlarged structural view of part A in

[0017] Figure 5 is a schematic structural view of the adjusting device of the present invention.

[0018] Figure 6 is Figure 5 an enlarged structural view of part B in

[0019] Figure 7 is a three-dimensional cross-sectional structural view of the adjusting device of the present invention.

[0020] Figure 8 is Figure 7 an enlarged structural view of part C in

[0021] Icon: 1. Bottom mold base; 2. Demolding frame; 21. Fixed mold base; 22. Movable mold base; 23. Auxiliary mold base; 201. Channel steel; 202. Column assembly; 203. Template; 204. Support rod; 205. Hollow rod; 207. Connecting plate; 208. Through hole; 209. Universal caster assembly; 3. Adjusting device; 31. Clamping seat; 32. Fixed rod; 33. Driving mechanism; 34. Rack; 35. Gear; 36. Ball; 37. Connecting rod. Detailed Embodiments

[0022] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] Refer to Figures 1-8, this embodiment provides a T-beam construction device for road bridges, which includes a bottom formwork frame 1 and two demoulding frames 2 located on both sides of the bottom formwork frame 1 and arranged along the length of the T-beam. The two demoulding frames 2 respectively include a fixed formwork frame 21, a movable formwork frame 22 and an auxiliary formwork frame 23. The movable formwork frame 22 and the fixed formwork frame 21 are connected by an adjusting device 3. The adjusting device 3 drives the movable formwork frame 22 to move along the length direction of the fixed formwork frame 21, so as to adjust the length of the demoulding frame 2 to meet the casting requirements of T-beam precast parts of different lengths. Then, the auxiliary formwork frame 23 is increased or decreased between the movable formwork frame 22 and the fixed formwork frame 21. The auxiliary formwork frame 23 has a variety of length specifications, which can be taken by the operator as needed. A universal caster assembly 209 is installed at the bottom of the movable formwork frame 22. The universal caster assembly 209 is equipped with a brake structure. The setting of the universal caster assembly 209 plays a certain supporting role when the movable formwork frame 22 moves, making the movable formwork frame 22 more flexible during the movement process.

[0024] Among them, the fixed formwork frame 21, the movable formwork frame 22 and the auxiliary formwork frame 23 all include multiple channel steels 201 arranged at intervals up and down and in parallel, a column assembly 202 arranged on one side of the channel steel 201 for fixing each channel steel 201, and a template 203 arranged on the other side of the channel steel 201. The adjusting device 3 is arranged on the column assemblies 202 of the movable formwork frame 22 and the fixed formwork frame 21.

[0025] In this embodiment, the adjusting device 3 includes a plurality of clamping seats 31, at least two parallel fixed rods 32 and a driving mechanism 33. The clamping seats 31 are fixed on the movable formwork frame 22. One end of each fixed rod 32 is fixed on the fixed formwork frame 21, and the other end passes through the clamping seat 31. The driving mechanism 33 is arranged on one of the clamping seats 31. A rack 34 is arranged on the fixed rod 32 passing through this clamping seat 31. The driving mechanism 33 is a motor, and a gear 35 meshing with the rack 34 is arranged at the output end of the motor. At the same time, a ball 36 is arranged on the contact surface between the clamping seat 31 and the fixed rod 32. Specifically, the ball 36 is rollably embedded in the clamping seat 31, and the embedding depth is less than the diameter of the ball 36 and greater than the radius of the ball 36.

[0026] In this embodiment, there are two fixed rods 32, and three connecting rods 37 are arranged between the two fixed rods 32. The fixed rods 32 and the connecting rods 37 cooperate to form a "day" shape. The setting of the connecting rods 37 enhances the stability of the fixed rods 32, prevents deformation or displacement during the adjustment process. At the same time, the setting of the connecting rods 37 can also play a limiting role in the adjustment of the movable formwork frame 22, preventing it from being adjusted excessively and causing the rack 34 to disengage from the gear 35.

[0027] In practical applications, the above-mentioned gear-rack structure of gear 35 and rack 34 can also adopt a common lead screw drive structure to push the movable mold frame 22 to move along the length direction of the lead screw. It can also achieve precise control of the moving distance of the movable mold frame 22, and after the adjustment is completed, it is not easy to slip, ensuring the dimensional accuracy of the precast T-beam components.

[0028] In this embodiment, a support rod 204 is provided on one side of the movable mold frame 22 facing the fixed mold frame 21. The fixed mold frame 21 is provided with a hollow rod 205 for the support rod 204 to penetrate. At the same time, to ensure smooth sliding between the support rod 204 and the hollow rod 205, the inner surface of the hollow rod 205 and the outer surface of the support rod 204 need to be smooth and flat.

[0029] In this embodiment, the fixed mold frame 21 and the auxiliary mold frame 23, and the movable mold frame 22 and the auxiliary mold frame 23 are fixedly connected by a plurality of nuts, which is convenient for the assembly and disassembly of the mold frames, improving the construction convenience and efficiency. Specifically, connecting plates 207 are fixedly arranged at the connection parts of the fixed mold frame 21, the movable mold frame 22, and the auxiliary mold frame 23, and a plurality of through holes 208 for the nuts to pass through are arranged at intervals on the connecting plates 207.

[0030] By providing the adjusting device 3 between the movable mold frame 22 and the fixed mold frame 21, the present invention can conveniently and quickly adjust the overall length of the demolding frame 2, effectively avoiding frequent replacement of the mold frames, reducing the construction cost, and significantly improving the construction efficiency.

[0031] Although the present invention is specifically shown and described in combination with the preferred implementation embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all are within the protection scope of the present invention.

Claims

1. A T-beam construction device for road bridges, characterized in that: It includes a bottom formwork support and two demoulding frames located on both sides of the bottom formwork support and arranged along the length of the T-beam. The two demoulding frames respectively include a fixed formwork, a movable formwork and an auxiliary formwork. The movable formwork and the fixed formwork are connected by an adjusting device, and the adjusting device drives the movable formwork to move along the length direction of the fixed formwork, so as to adjust the length of the demoulding frame. Then, the auxiliary formwork is increased or decreased between the movable formwork and the fixed formwork, and the auxiliary formwork has a variety of length specifications; The adjusting device includes a plurality of clamping seats, at least two parallel fixed rods and a driving mechanism. The clamping seats are fixedly arranged on the movable formwork. One end of each fixed rod is fixed on the fixed formwork, and the other end is inserted through the clamping seats. The driving mechanism is arranged on one of the clamping seats, and a rack is arranged on the fixed rod passing through this clamping seat. The driving mechanism is a motor, and a gear meshing with the rack is arranged at the output end of the motor.

2. The T-beam construction device for a road bridge according to claim 1, characterized in that: Connecting rods are arranged between the fixed rods.

3. The T-beam construction device for a road bridge according to claim 2, characterized in that: Ball bearings are arranged on the contact surfaces between the clamping seats and the fixed rods.

4. The T-beam construction device for a road bridge according to claim 1, characterized in that: Universal caster assemblies are installed at the bottom of the movable formwork.

5. The T-beam construction device for a road bridge according to claim 1, characterized in that: A support rod is arranged on one side of the movable formwork facing the fixed formwork, and a hollow rod for the support rod to penetrate into is arranged on the fixed formwork.

6. The T-beam construction device for a road bridge according to claim 1, characterized in that: The fixed formwork and the auxiliary formwork, and the movable formwork and the auxiliary formwork are fixedly connected by a plurality of nuts.

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