Steel pipe truss hoisting auxiliary device

Abstract

The utility model belongs to the technical field of building construction, and discloses a steel pipe truss hoisting auxiliary device which comprises a hoisting underframe, a two-way screw rod and a fixing mechanism, the top of the hoisting underframe is fixedly connected with a bearing assembly, the side face of the hoisting underframe is fixedly connected with a first motor, and one end of the two-way screw rod is rotatably connected to the inner wall of the hoisting underframe; and the fixing mechanism comprises two U-shaped frames, the two U-shaped frames are connected to the two sides of the bottoms of the connecting frames correspondingly, second motors are fixedly connected to the side faces of the U-shaped frames, and supporting frames are arranged on the inner sides of the U-shaped frames in a penetrating mode. Through the use of the fixing mechanism, the steel pipe truss is supported by the supporting frame, meanwhile, the fixing clamp can clamp and fix a steel pipe on the inner side of the steel pipe truss, the problem that the steel pipe truss is prone to sliding towards the two sides of the device after being fixed is solved, and the fixing stability of the steel pipe truss is improved.

Description

Technical Field

[0001] The utility model belongs to the field of construction engineering, and particularly relates to an auxiliary device for hoisting steel pipe trusses. Background Art

[0002] A steel pipe truss is a frame structure composed of steel pipes, designed in the form of a truss, and is usually used to support buildings, bridges, towers and other large structures. The basic principle of the truss is to distribute and transfer loads through the geometric shape of triangles, thereby enhancing the stability and load-bearing capacity of the structure. An auxiliary device for hoisting steel pipe trusses is a device or tool used to support and guide steel pipe trusses during hoisting. These devices are designed to improve the safety, efficiency and accuracy of hoisting, ensure that the truss is not damaged during installation, and can successfully complete the installation task.

[0003] For example, the Chinese utility model patent with the application number 202323242148X discloses an auxiliary device for hoisting steel pipe trusses. Through the arranged mobile bearing mechanism and hoisting execution mechanism, the steel pipe truss is effectively hoisted. By setting a variable-frequency motor to drive the forward rotation ball screw and the reverse rotation ball screw to rotate, and drive the mobile platform to move, while driving the first support rod and the second support rod to move, drive the hoisting frame to rise or fall. The positioning component drives the hoisting frame to adjust to a suitable position. The steel pipe truss is loaded above the hoisting frame through the stop knife plate and the stop soft teeth, and the bearing plate is driven by a telescopic cylinder for auxiliary support, so that the hoisting frame can quickly clamp the steel pipe truss, or quickly separate the hoisting frame from the steel pipe truss, with simple operation and convenient use.

[0004] However, in the above disclosed technical solution, when the steel pipe truss is fixed, the surface of the steel pipe is relatively smooth. After being fixed, it is easy to slide towards both sides of the device, resulting in the falling of the steel pipe truss and causing damage to the steel pipe truss, affecting the stability of the fixation of the steel pipe truss.

[0005] In summary, there is a need for an auxiliary hoisting device that can prevent the steel frame from sliding towards both sides during hoisting. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an auxiliary device for hoisting steel pipe trusses. Through the use of the fixing mechanism, while the support frame supports the steel pipe truss, the fixing clamp can clamp and fix the steel pipe inside the steel pipe truss, solving the problem that the steel pipe truss is easy to slide towards both sides of the device after being fixed, and improving the stability of the fixation of the steel pipe truss.

[0007] The technical solution adopted by the utility model to solve the above problems is: an auxiliary device for hoisting steel pipe trusses, comprising:

[0008] Lifting chassis, a bearing assembly is fixedly connected to the top of the lifting chassis, and a first motor is fixedly connected to the side of the lifting chassis;

[0009] A bidirectional lead screw, one end of the bidirectional lead screw is rotatably connected to the inner wall of the lifting chassis, the bidirectional lead screw is also fixedly connected to the first motor, and a connecting frame is threadedly connected to the bidirectional lead screw;

[0010] Fixing mechanism, the fixing mechanism includes a U-shaped frame, the U-shaped frame is connected to the bottom of the connecting frame, a second motor is fixedly connected to the side of the U-shaped frame, a support frame is disposed through the inside of the U-shaped frame, and a rack is fixedly connected to the inside of the support frame through a connecting rod, and a gear is meshed with the rack, one end of the gear shaft is fixedly connected to the second motor, and the gear shaft is also rotatably connected to the inside of the U-shaped frame, and a clamping assembly is fixedly connected to the top of one end of the support frame.

[0011] A further preferred technical solution is that: the clamping assembly includes a fixing frame, a connecting rod and two fixing clips, the fixing frame is fixedly connected to the support frame, two connecting columns are fixedly connected to the side of the fixing frame, one end of the connecting column is connected through the inside of the fixing clip, the top of the fixing clip is rotatably connected to a slider through a connecting rod, both sides of the slider are abutted against the inside of the two fixing frames, and the connecting rod is rotatably connected to the fixing clip.

[0012] A further preferred technical solution is that: the clamping assembly is located above the U-shaped frame and the clamping assembly is located inside the connecting frame.

[0013] A further preferred technical solution is that: an installation groove is provided at the bottom of the lifting chassis, the bidirectional lead screw is rotatably connected in the installation groove, and the top of the connecting frame abuts against the installation groove.

[0014] A further preferred technical solution is that: the bearing assembly includes a connecting block, a lifting wire rope and a lifting ring, the connecting block is fixedly connected to the lifting chassis, and the connecting block and the lifting ring are fixedly connected by a lifting wire rope.

[0015] A further preferred technical solution is that: a through groove for the connecting rod to pass through is provided inside the U-shaped frame.

[0016] A further preferred technical solution is that: a through groove for the support frame to pass through is provided inside the U-shaped frame.

[0017] A further preferred technical solution is that: a fixing block is fixedly connected to the top of the U-shaped frame.

[0018] A further preferred technical solution is that: a spring is fixedly connected to one side of the slider, and one end of the spring is fixedly connected to the inside of the support frame.

[0019] A further preferred technical solution is that: the connecting frame is connected to the U-shaped frame through an adjusting rod, the adjusting rod is threadedly connected to the connecting frame, and one end of the adjusting rod is rotatably connected to the U-shaped frame.

[0020] In summary, the present utility model has the following beneficial effects:

[0021] 1. By using the fixing mechanism of the present utility model, while the support frame supports the steel pipe truss, the fixing clamp can clamp and fix the steel pipe inside the steel pipe truss, solving the problem that the steel pipe truss is prone to slide to both sides of the device after being fixed, and improving the stability of the fixation of the steel pipe truss.

[0022] 2. By using the fixing mechanism of the present utility model, when the steel pipe truss is released, the support frame and the fixing clamp move outward to the steel pipe truss at the same time, enabling the steel pipe truss to be released. Lifting the device can disengage it from the steel pipe truss, solving the problem that it is difficult for the device to disengage from the steel pipe truss and improving the applicable range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 is a schematic diagram of the hoisting chassis, load-bearing assembly and first motor structure of the present utility model;

[0025] Figure 3 is a schematic sectional structure diagram of the fixing mechanism of the present utility model.

[0026] In the drawings, the components represented by each reference numeral are as follows: 1. Hoisting chassis; 2. Load-bearing assembly; 3. Connecting frame; 4. Adjusting rod; 5. U-shaped frame; 6. Support frame; 7. Second motor; 8. Fixed block; 9. Fixing clamp; 10. Gear; 11. Rack; 12. First motor; 13. Slide block; 14. Link rod; 15. Connecting rod; 16. Bidirectional lead screw; 17. Fixed frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further details the present utility model with reference to the accompanying drawings.

[0028] This specific embodiment is only an explanation of the present utility model and does not limit the present utility model. Those skilled in the art can make modifications without creative contributions to this embodiment as needed after reading this specification, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

[0029] Embodiment:

[0030] Please refer to Figures 1-3, An auxiliary device for hoisting a steel pipe truss in this embodiment includes a hoisting chassis 1 for the support device. An installation groove is provided at the bottom of the hoisting chassis 1. A bidirectional lead screw 16 is rotatably connected in the installation groove. Both sides of the top surface of the connecting frame 3 are abutted in the installation groove. A bearing assembly 2 is fixedly connected to the top of the hoisting chassis 1. The bearing assembly 2 includes three connecting blocks, three hoisting steel wires and a lifting ring. The connecting blocks are fixedly connected to the hoisting chassis 1. The connecting blocks and the lifting ring are fixedly connected by hoisting steel wires. A first motor 12 for driving the bidirectional lead screw 16 to rotate is fixedly connected to the side of the hoisting chassis 1.

[0031] The bidirectional lead screw 16 for driving the connecting frame 3 to move. One end of the bidirectional lead screw 16 is rotatably connected to the inner wall of the hoisting chassis 1. The other end of the bidirectional lead screw 16 is fixedly connected to the first motor 12. Connecting frames 3 for driving the fixing mechanism to move are threadedly connected to both sides of the surface of the bidirectional lead screw 16. The connecting frame 3 and the U-shaped frame 5 are connected by an adjusting rod 4. The adjusting rod 4 is threadedly connected to the connecting frame 3. One end of the adjusting rod 4 is rotatably connected to the U-shaped frame 5.

[0032] A fixing mechanism for fixing the steel pipe truss. The fixing mechanism includes two U-shaped frames 5. A through groove for the connecting rod to pass through is provided inside the U-shaped frame 5. A through groove for the support frame 6 to pass through is provided inside the U-shaped frame 5. A fixing block 8 is fixedly connected to the top of the U-shaped frame 5. The two U-shaped frames 5 are respectively connected to both sides of the bottom of the connecting frame 3. A second motor 7 for driving the gear 10 to rotate is fixedly connected to the side of the U-shaped frame 5. A support frame 6 is disposed through the inside of the U-shaped frame 5. A rack 11 for driving the support frame 6 to move is fixedly connected to the inside of the support frame 6 by two connecting rods. A gear 10 for driving the rack 11 to move is meshed with the surface of the rack 11. One end of the rotating shaft of the gear 10 is fixedly connected to the second motor 7. The other end of the rotating shaft of the gear 10 is rotatably connected to the inside of the U-shaped frame 5. A clamping assembly for clamping the inner steel pipe of the steel pipe truss is fixedly connected to the top of one end of the support frame 6. The clamping assembly includes two fixing frames 17, two connecting rods 14 and two fixing clamps 9. The fixing frames 17 are fixedly connected to the support frame 6. Two connecting columns 15 are fixedly connected to the side of the fixing frame 17. One end of the connecting column 15 is connected through the inside of the fixing clamp 9. The top of the fixing clamp 9 is rotatably connected to a slider 13 by a connecting rod 14. Both sides of the slider 13 are abutted against the inside of the two fixing frames 17. The connecting rod 14 is rotatably connected to the fixing clamp 9. The clamping assembly is located above the U-shaped frame 5 and inside the connecting frame 3. A spring is fixedly connected to one side of the slider 13, and one end of the spring is fixedly connected to the inside of the support frame 6.

[0033] In the embodiment of the present application, the implementation principle of an auxiliary device for hoisting a steel pipe truss is as follows: during use, according to the length of the steel pipe truss, the first motor 12 is started to rotate, driving the bidirectional lead screw 16 to rotate. By the rotation of the bidirectional lead screw 16, the connecting frame 3 is driven to move, so as to adapt to the length of the steel pipe truss. The height of the U-shaped frame 5 is adjusted by rotating the adjusting rod 4 to adapt to the height of the steel pipe truss. By turning on the second motor 7 to drive the gear 10 to rotate, by the rotation of the gear 10, the rack 11 is driven to move. By the movement of the rack 11, the support frame 6 is driven to move. By the movement of the support frame 6, the clamping assembly is driven to move. When the slider 13 abuts against the surface of the fixed block 8, the clamping assembly continues to move. When the fixed clamp 9 clamps the steel pipe inside the steel pipe truss, after turning off the second motor 7, the device can be lifted by an external hoisting mechanism. When it is necessary to lower the steel pipe truss, the second motor 7 is reversed, so that the support frame 6 and the clamping assembly move backward. Through the action of the spring, the slider 13 can be reset, so that the fixed clamp 9 loses the clamping force on the steel pipe truss.

[0034] In addition, as much as possible, the same or similar element symbols are used in the drawings and the description to refer to the same or similar parts or steps. The drawings are presented in a simplified form and are not drawn to an exact scale. For convenience and clarity only, directional terms such as top, bottom, front side, rear side, left side, right side, front, back, up, above, upper, below, lower, behind and front may be used for the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. A steel tube truss lifting auxiliary device, characterized in that: include: A lifting base frame (1), wherein a bearing assembly (2) is fixedly connected to the top of the lifting base frame (1), and a first motor (12) is fixedly connected to the side of the lifting base frame (1); a bidirectional screw rod (16), one end of the bidirectional screw rod (16) being rotatably connected to the inner wall of the hoisting base frame (1), the bidirectional screw rod (16) being also fixedly connected to the first motor (12), and a connecting frame (3) being threadedly connected to the bidirectional screw rod (16); A fixing mechanism, the fixing mechanism comprising a U-shaped frame (5), the U-shaped frame (5) being connected to the bottom of the connecting frame (3), a second motor (7) being fixedly connected to the side of the U-shaped frame (5), a support frame (6) being provided through the inner side of the U-shaped frame (5), a rack (11) being fixedly connected to the inner side of the support frame (6) via a connecting rod, a gear (10) being meshingly connected to the rack (11), one end of a rotating shaft of the gear (10) being fixedly connected to the second motor (7), the rotating shaft of the gear (10) being also rotatably connected to the inner side of the U-shaped frame (5), and a clamping assembly being fixedly connected to the top of one end of the support frame (6).

2. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The clamping assembly comprises a fixing frame (17), a connecting rod (14) and two fixing clamps (9); the fixing frame (17) is fixedly connected to the support frame (6); two connecting columns (15) are fixedly connected to the side of the fixing frame (17); one end of the connecting column (15) is connected to the inner side of the fixing clamp (9); the top of the fixing clamp (9) is rotatably connected to a slider (13) via a connecting rod (14); both sides of the slider (13) abut against the inner sides of the two fixing frames (17); and the connecting rod (14) is rotatably connected to the fixing clamp (9).

3. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The clamping assembly is located above the U-shaped frame (5), and the clamping assembly is located inside the connecting frame (3).

4. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The bottom of the hanging base frame (1) is provided with a mounting groove, the bidirectional screw rod (16) is rotatably connected in the mounting groove, and the top of the connecting frame (3) abuts against the mounting groove.

5. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The bearing assembly (2) comprises a connection block, a lifting wire and a lifting ring; the connection block is fixedly connected to the lifting base frame (1); and the connection block and the lifting ring are fixedly connected via the lifting wire.

6. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The inner side of the U-shaped frame (5) is provided with a through slot for the connecting rod to pass through.

7. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: The inner side of the U-shaped frame (5) is provided with a through slot for the support frame (6) to pass through.

8. The steel tube truss lifting auxiliary device according to claim 1, characterized in that: A fixing block (8) is fixedly connected to the top of the U-shaped frame (5).

9. The steel tube truss lifting auxiliary device according to claim 2, characterized in that: A spring is fixedly connected to one side of the sliding block (13), and one end of the spring is fixedly connected to the inner side of the support frame (6).

10. The steel tube truss hoisting auxiliary device according to claim 1, characterized in that: The connecting frame (3) and the U-shaped frame (5) are connected via an adjusting rod (4); the adjusting rod (4) is threadedly connected to the connecting frame (3); and one end of the adjusting rod (4) is rotatably connected to the U-shaped frame (5).

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