Assembling and disassembling tool for pre-tensioning method I-beam slow release device

Abstract

The utility model discloses a mounting and dismounting tool for a pre-tensioning method I-beam slow release device, which comprises a base, a support and a release assembly are fixed on the base, a driving bevel gear is rotatably arranged on the support, the release assembly comprises a driven bevel gear meshed with the driving bevel gear, a socket spanner is arranged on the driven bevel gear, and the socket spanner is connected with the support. And a driving mechanism capable of driving the driving bevel gear to rotate is arranged on the bracket. The device has the advantages that the device is simple in structure and convenient to move, the releasing assembly is placed in the narrow space below the pedestal to replace leaning operation of workers, operation is labor-saving, use is convenient, and the problem that the bodies of the workers are prone to being hurt when the workers lean to the narrow space to operate can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction auxiliary equipment, in particular to a tool for installing and removing a pre-tensioned I-beam slow-release device. Background Art

[0002] The fold line pre-tensioning method is a type of pre-tensioning method. By arranging a diverter on the tensioning pedestal, the prestressed tendons are passed through the diverter, and then the prestressed tendons are tensioned, thereby realizing the steering of the prestressed tendons. After the tensioning is completed, the prestressed tendons are anchored, and then concrete is poured. After the concrete is cured to the specified strength, the anchor is loosened, the prestressed tendons are cut off, and the direct connection between the lower part of the diverter and the pedestal is released, forming a prestressed concrete structure with fold line reinforcement pre-tensioning method.

[0003] During on-site construction, the steering gear is usually connected downward to the bolts using a through steel rod, and the bolts are anchored on the pedestal to fix the steering gear. However, when the steering gear is disassembled and released after the concrete curing is completed, workers are required to lean over to the bottom of the I-beam pedestal and use a wrench to remove the nuts on the through steel rods. However, the operating space reserved at the bottom of the pedestal is generally small, which makes it inconvenient for workers to operate. In addition, the construction requires that the steering gear cannot be released upward too quickly. Therefore, the time workers spend leaning over in the narrow space will be relatively long. The longer the operation time, the more inconvenient it is for the workers, and it is easy to bump into something when operating in a narrow space, causing physical injuries. Utility Model Content

[0004] In order to overcome the problem in the prior art that workers are inconvenient to operate and are prone to physical injury when releasing the pre-tensioned I-beam diverter, the embodiment of the utility model provides a tool for installing and removing the pre-tensioned I-beam slow-release device. The technical solution is as follows:

[0005] A tool for installing and removing a pre-tensioned I-beam slow-release device comprises a base, a bracket and a release assembly are fixed on the base, a driving bevel gear is rotatably provided on the bracket, the release assembly comprises a driven bevel gear meshing with the driving bevel gear, a socket wrench is provided on the driven bevel gear, and a driving mechanism capable of driving the driving bevel gear to rotate is provided on the bracket.

[0006] Furthermore, the release assembly also includes a fixed cylinder fixed on the upper end surface of the base, the driven bevel gear is coaxially rotatably arranged on the top surface of the fixed cylinder, a hydraulic cylinder is arranged inside the fixed cylinder, the bottom end of the hydraulic cylinder is fixedly connected to the base, one end of the movable shaft of the hydraulic cylinder is coaxially rotatably connected to a connecting rod, the driven bevel gear is provided with a keyway, a protrusion matching the keyway is axially arranged on the surface of the connecting rod, and the connecting rod is slidably arranged in the axial hole of the driven bevel gear, the socket wrench is arranged on the upper end of the connecting rod and can rotate coaxially with the connecting rod, the socket wrench can be sleeved on the fastening nut at the lower end of the through-steel rod, and the sleeve is raised by the hydraulic cylinder, so as to replace manual work of holding a wrench to tighten the fastening nut.

[0007] Furthermore, the driven bevel gear is connected to the fixed cylinder via a bearing, and one end of the movable shaft of the hydraulic cylinder is also connected to the connecting rod via a bearing.

[0008] Furthermore, the bracket includes a support rod fixed to the upper end surface of the base, a sleeve is fixed to the upper end of the support rod, a rotating shaft is rotatably arranged in the sleeve, one end of the rotating shaft is fixedly connected to the active bevel gear, and one end of the rotating shaft is provided with a protrusion matching the shaft hole and keyway of the active bevel gear, and the other end of the rotating shaft is fixedly connected to the driving mechanism.

[0009] Furthermore, the driving mechanism is a handle, or the driving mechanism is a motor.

[0010] Furthermore, the socket wrench is detachably connected to the connecting rod, and the socket wrench can be detachably replaced so as to fit different types of nuts on different through-core steel rods, thereby increasing the versatility of use of the device.

[0011] Furthermore, the bracket and the release assembly are arranged at one end of the base, which facilitates placing the end of the base provided with the release assembly into the narrow space at the bottom of the I-beam pedestal, thereby facilitating subsequent operations.

[0012] Furthermore, the bottom surface of the base is provided with universal wheels.

[0013] Furthermore, a push handle is fixed to one end of the base away from the release assembly.

[0014] Furthermore, the foot switch of the hydraulic cylinder is arranged on the top surface of one end of the base away from the release assembly.

[0015] Furthermore, a polygonal slot is provided at the upper end of the connecting rod, and an insert block matching the polygonal slot is provided at the lower end of the socket wrench, and the socket wrench is plugged into the connecting rod.

[0016] The beneficial effects of the technical solution provided by the embodiment of the utility model are: the device has a simple structure and is easy to move, and can replace the workers' leaning over to operate by placing the release component in the narrow space under the pedestal. Not only is the operation more labor-saving and easy to use, but it can also avoid the problem of workers being easily injured when leaning over to operate in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 It is a front view schematic diagram of an embodiment of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Base; 2. Bracket; 201. Support rod; 202. Sleeve; 203. Rotating shaft; 3. Driving bevel gear; 4. Driven bevel gear; 5. Socket wrench; 6. Driving mechanism; 7. Fixed cylinder; 8. Hydraulic cylinder; 801. Foot switch; 9. Connecting rod; 10. Protrusion; 11. Universal wheel; 12. Push handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figure 1 to Figure 2 The embodiment of the utility model provides an installation and disassembly tool for a pre-tensioned I-beam slow-release device, comprising a base 1, a bracket 2 and a release assembly are fixed on the base 1, a driving bevel gear 3 is rotatably provided on the bracket 2, the release assembly comprises a driven bevel gear 4 meshing with the driving bevel gear 3, a socket wrench 5 is provided on the driven bevel gear 4, and a driving mechanism 6 capable of driving the driving bevel gear 3 to rotate is provided on the bracket 2.

[0024] The release assembly also includes a fixed cylinder 7 fixed on the upper end surface of the base 1, and the driven bevel gear 4 is coaxially rotatably arranged on the top surface of the fixed cylinder 7. A hydraulic cylinder 8 is arranged inside the fixed cylinder 7, and the bottom end of the hydraulic cylinder 8 is fixedly connected to the base 1. One end of the movable shaft of the hydraulic cylinder 8 is coaxially rotatably connected to a connecting rod 9, and the driven bevel gear 4 is provided with a keyway. A protrusion 10 matching the keyway is axially arranged on the surface of the connecting rod 9, and the connecting rod 9 is slidably arranged in the axial hole of the driven bevel gear 4. The socket wrench 5 is arranged on the upper end of the connecting rod 9 and can rotate coaxially with the connecting rod 9.

[0025] The driven bevel gear 4 is connected to the fixed cylinder 7 through a bearing, and one end of the movable shaft of the hydraulic cylinder 8 is also connected to the connecting rod 9 through a bearing.

[0026] The bracket 2 includes a support rod 201 fixed to the upper end surface of the base 1, a sleeve 202 is fixed to the upper end of the support rod 201, a rotating shaft 203 is rotatably arranged in the sleeve 202, one end of the rotating shaft 203 is fixedly connected to the active bevel gear 3, and one end of the rotating shaft 203 is provided with a protrusion matching the shaft hole and keyway of the active bevel gear 3, and the other end of the rotating shaft 203 is fixedly connected to the driving mechanism 6.

[0027] The driving mechanism 6 is a turning handle, or the driving mechanism is a motor.

[0028] The socket wrench 5 and the connecting rod 9 are detachably connected; for example, a polygonal slot is provided at the upper end of the connecting rod 9, and an insert matching the polygonal slot is provided at the lower end of the socket wrench 5, and the socket wrench 5 and the connecting rod 9 are plugged together.

[0029] The bracket 2 and the release assembly are arranged at one end of the base 1 .

[0030] A universal wheel 11 is disposed on the bottom surface of the base 1 ; a push handle 12 is fixed to one end of the base 1 away from the release assembly.

[0031] The foot switch 801 of the hydraulic cylinder 8 is arranged on the top surface of the end of the base 1 away from the release assembly.

[0032] Instructions for use: When the device is used, the end of the device provided with the release assembly is pushed into the narrow space at the bottom of the I-beam pedestal by means of the push handle 12, and then the position of the device is finely adjusted so that the socket wrench 5 is aligned with the nut at the lower end of the through-steel rod, and then the hydraulic cylinder 8 is started by means of the foot switch 801, so that the movable shaft of the hydraulic cylinder 8 rises, driving the connecting rod 9 to rise, and then the socket wrench 5 rises until the upper end of the socket wrench 5 is sleeved on the nut at the lower end of the through-steel rod, and then the driving mechanism 6 is operated to drive the active bevel gear 3 to rotate, thereby driving the driven bevel gear 4 to rotate, and then the connecting rod 9 and the socket wrench 5 to rotate, thereby replacing the manual hand-held wrench to screw the nut at the lower end of the through-steel rod.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for installing and removing a pre-tensioned I-beam slow-release device, characterized in that: The invention comprises a base (1), a bracket (2) and a release assembly being fixed on the base (1), a driving bevel gear (3) being rotatably arranged on the bracket (2), the release assembly comprising a driven bevel gear (4) meshing with the driving bevel gear (3), a socket wrench (5) being arranged on the driven bevel gear (4), and a driving mechanism (6) capable of driving the driving bevel gear (3) to rotate being arranged on the bracket (2); The release assembly further comprises a fixed cylinder (7) fixed to the upper end surface of the base (1); the driven bevel gear (4) is coaxially rotatably arranged on the top surface of the fixed cylinder (7); a hydraulic cylinder (8) is arranged inside the fixed cylinder (7); the bottom end of the hydraulic cylinder (8) is fixedly connected to the base (1); one end of the movable shaft of the hydraulic cylinder (8) is coaxially rotatably connected to a connecting rod (9); the driven bevel gear (4) is provided with a keyway; a protrusion (10) matching the keyway is axially arranged on the surface of the connecting rod (9); the connecting rod (9) is slidably arranged in the axial hole of the driven bevel gear (4); and the socket wrench (5) is arranged at the upper end of the connecting rod (9) and can coaxially rotate with the connecting rod (9).

2. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The bracket (2) comprises a support rod (201) fixed to the upper end surface of the base (1); a sleeve (202) is fixed to the upper end of the support rod (201); a rotating shaft (203) is rotatably arranged in the sleeve (202); one end of the rotating shaft (203) is fixedly connected to the active bevel gear (3); one end of the rotating shaft (203) is provided with a protrusion matching the shaft hole and keyway of the active bevel gear (3); and the other end of the rotating shaft (203) is fixedly connected to the driving mechanism (6).

3. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The driving mechanism (6) is a turning handle, or the driving mechanism is a motor.

4. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The socket wrench (5) and the connecting rod (9) are detachably connected.

5. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The bracket (2) and the release assembly are arranged at one end of the base (1).

6. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The bottom surface of the base (1) is provided with universal wheels (11).

7. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: A push handle (12) is fixed to one end of the base (1) away from the release assembly.

8. The installation and removal tool of the pre-tensioned I-beam slow-release device according to claim 1, characterized in that: The foot switch (801) of the hydraulic cylinder (8) is arranged on the top surface of an end of the base (1) away from the release assembly.

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