CN-224228678-U - Adjustable reinforcing bar rack

Abstract

The utility model provides an adjustable steel bar rack, which belongs to the technical field of tunnel construction and comprises a bottom frame, moving wheels, steel frames and top frames, wherein the moving wheels are arranged at two sides of the bottom end of the bottom frame, the steel frames are fixed at the top end of the bottom frame, top frames are fixed at the top ends of the steel frames, stretching structures are arranged at two sides of the steel frames, and each lifting structure comprises a connecting sleeve fixed at one side of the bottom frame, a supporting plate fixed at the bottom end of a supporting column and locking assemblies arranged at two sides of the supporting column. According to the utility model, the hydraulic cylinder stretches to push the steel frame to move upwards, the integral height of the device is adjusted, the double-output-shaft motor is started to drive the screw rod to rotate, and the position of the connecting sleeve is locked, so that the height adjusting function of the device is realized, the variable clearance heights of different mileage sections of a high-speed rail tunnel can be adapted, the construction feasibility is ensured, the construction universality is improved, the frequent replacement or reconstruction of a rack due to the tunnel height difference is avoided, and the cost and time are saved.

Inventors

• SHI HAO
• GENG XIAOQIANG
• LUO XIANG
• DAI YI
• PEI ANYIN
• ZHAO HAILONG
• HUANG YEKE
• CAO XINYI
• HUANG LIJIN
• WANG GUOWEI
• LUO FANGCHENG

Assignees

• 中铁二局第一工程有限公司

Dates

Publication Date

20260512

Application Date

20250521

Claims (6)

1. 1. An adjustable reinforcement rack, includes chassis (1), and its characterized in that still includes: The movable wheels (2) are arranged at two sides of the bottom end of the underframe (1); The steel frame (10) is fixed at the top end of the underframe (1), and a top frame (11) is fixed at the top end of the steel frame (10); The top workbench (8) is arranged at the top end of the top frame (11), and the two sides of the top workbench (8) are provided with top connecting beams (6) connected with the top frame (11); the stretching structures (7) are arranged on two sides of the steel frame (10) and are used for adjusting the width of the device; The side workbench (3) is arranged at the top end of the extension structure (7), and a side connecting beam (4) is arranged on one side of the extension structure (7); The mounting sleeve (12) is mounted at the bottom end of the extension structure (7), and a stay bar (5) is connected inside the mounting sleeve (12) in a sliding manner; Lifting structure (9), set up in the both sides of chassis (1), wherein, lifting structure (9) are including fixing adapter sleeve (906) in chassis (1) one side, sliding connection at inside support column (902) of adapter sleeve (906), install in steelframe (10) one side and telescopic end and support column (902) connected pneumatic cylinder (901), fix backup pad (905) in support column (902) bottom and set up the locking Assembly in support column (902) both sides.
2. 2. The adjustable reinforcement bar rack according to claim 1, wherein the locking assembly comprises a protective case (907) fixed at one side of the connecting sleeve (906), a double-output-shaft motor (908) installed inside one side of the protective case (907), a screw (910) installed at both output shaft ends of the double-output-shaft motor (908) and rotatably connected with the protective case (907), a moving frame (911) screwed outside the screw (910), a moving block (904) fixed at one side of the moving frame (911) and slidably connected with the connecting sleeve (906), an external tooth plate (909) fixed at one side of the moving block (904), and internal tooth plates (903) fixed at both sides of the supporting upright (902).
3. 3. An adjustable reinforcement bar rack according to claim 2, characterized in that the external tooth plates (909) and the internal tooth plates (903) are in a meshing connection, and the moving blocks (904) and the external tooth plates (909) are symmetrically distributed on the vertical center line of the support upright (902).
4. 4. An adjustable reinforcement bar rack according to claim 2, characterized in that the protective shell (907) is provided with two groups on both sides of the double-output shaft motor (908), and the external screw threads on the surfaces of the two groups of protective shells (907) are opposite in direction.
5. 5. An adjustable reinforcement bar rack according to claim 1, characterized in that the extension structure (7) comprises a support beam (701) fixed on both sides of the steel frame (10), a translation cylinder (702) installed inside the support beam (701), a movable base (703) installed on the translation cylinder (702) and inserted at the end and connected with the side connecting beam (4), a movable sleeve (705) installed on the top of the movable base (703) and connected with the side working table (3), and a sliding plate (704) fixed on both sides of the top of the support beam (701).
6. 6. The adjustable reinforcement bar rack according to claim 5, wherein a sliding structure is formed between the sliding plate (704) and the moving sleeve (705), and the moving sleeve (705) is arranged at equal intervals at the bottom end of the side working table (3).

Description

Adjustable reinforcing bar rack Technical Field The utility model relates to the technical field of tunnel construction, in particular to an adjustable steel bar bench. Background The high-speed rail tunnel is an important component of modern railway traffic, the construction of the high-speed rail tunnel relates to multiple aspects such as complex engineering technology, construction method and environmental impact, in order to conveniently erect tunnel steel bars, a steel bar bench is required to be used for providing a stable operation platform for steel bar installation, the construction efficiency is effectively improved, the accurate installation position of the steel bars is ensured, meanwhile, the safety of construction can be improved by the bench, and the risk of high-place operation of workers is reduced. The construction method has the advantages that the construction quality of open cut tunnel lining steel bars is guaranteed, and the arrangement of the steel bars meets the design requirements. The existing method still has the defects that the tunnel cross section sizes of different area sections are inconsistent because the tunnel clearance, the height, the width and other dimensions are designed according to the train speed, the tunnel burial depth and the geological conditions, and the traditional reinforcement rack needs to be cut again to change the rack size when encountering the cross section change, so that the method has low work efficiency and is extremely inconvenient to use. Disclosure of utility model The utility model provides an adjustable steel bar bench which solves the problems set forth in the background art. In order to solve the technical problems, the technical scheme of the utility model is as follows: the embodiment of the utility model provides an adjustable reinforcement rack, which comprises a bottom frame and further comprises: the movable wheels are arranged at two sides of the bottom end of the underframe; The steel frame is fixed at the top end of the underframe, and the top end of the steel frame is fixed with a top frame; The top workbench is arranged at the top end of the top frame, and both sides of the top workbench are provided with top connecting beams connected with the top frame; The stretching structures are arranged on two sides of the steel frame and used for adjusting the width of the device; The side workbench is arranged at the top end of the extension structure, and a side connecting beam is arranged on one side of the extension structure; the mounting sleeve is mounted at the bottom end of the extension structure, and a stay bar is connected inside the mounting sleeve in a sliding manner; the lifting structure is arranged on two sides of the underframe and comprises a connecting sleeve fixed on one side of the underframe, a supporting column in the connecting sleeve in a sliding mode, a hydraulic cylinder installed on one side of the steel frame and connected with the supporting column at the telescopic end, a supporting plate fixed on the bottom end of the supporting column and locking assemblies arranged on two sides of the supporting column. Through above-mentioned technical scheme, roll through the movable wheel and make rack overall movement, provide operating platform for the workman through top workstation and side workstation, support and adjust the position that inlayer principal muscle was installed through side tie-beam and top tie-beam, each group vaulting pole is pulled out to the manual, places the plank as operating platform on the vaulting pole to in order to from the vertical distributing muscle of inlayer principal muscle outside ligature. Further, the locking component comprises a protective shell fixed on one side of the connecting sleeve, a double-output-shaft motor arranged inside one side of the protective shell, a screw rod arranged at the end parts of output shafts on two sides of the double-output-shaft motor and rotationally connected with the protective shell, a movable frame in the outer side of the screw rod in threaded connection, a movable block fixed on one side of the movable frame and slidably connected with the connecting sleeve, an external tooth plate fixed on one side of the movable block and an internal tooth plate fixed on two sides of the supporting upright post. Through above-mentioned technical scheme, extend through the pneumatic cylinder and promote the steelframe and shift up, adjusting device holistic height, start two play axle motors and drive the screw rod and rotate, lock the position of adapter sleeve. Furthermore, the outer tooth plates and the inner tooth plates are in meshed connection, and the moving blocks and the outer tooth plates are symmetrically distributed on the vertical central line of the supporting upright post. Through above-mentioned technical scheme, external tooth piece and internal tooth piece meshing are connected, and cooperation movable block and external tooth piece are o