Lifting appliance for bridge construction

Abstract

The utility model belongs to the field of bridge construction, and particularly relates to a lifting appliance for bridge construction, which comprises a main body and a movable adapting component, the movable adaptation assembly is provided with a fixing rod, a rack is fixedly installed on one side of the fixing rod, a gear is in transmission connection with the top of the rack, the gear is fixedly installed at the output end of a torque motor, an installation plate is fixedly installed on one side of the torque motor, and a movable plate is fixedly installed on the other side of the installation plate; a gear at the output end is made to rotate through a driving torque motor, when the gear and a rack are in transmission fit, the rotating motion of the gear is converted into linear motion of a mounting plate and a movable plate, the movable plate and the mounting plate are limited through cooperation of a limiting rod and a limiting sliding block, and the supporting point position of a building material is changed; the function of adaptive adjustment is achieved, the problem that operation is tedious in adjustment and use is solved, and the limitation in use is improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction, and specifically to a lifting tool for bridge construction. Background Art

[0002] A bridge generally refers to a structure erected over rivers, lakes and seas to enable vehicles, pedestrians, etc. to pass smoothly. To adapt to the modern rapidly developing transportation industry, a bridge is also extended to a building that is erected across mountain streams, poor geological conditions or to meet other traffic needs to make passage more convenient. A bridge generally consists of an upper structure, a lower structure, bearings and accessory structures. The upper structure is also called the bridge span structure and is the main structure for crossing obstacles. The lower structure includes abutments, piers and foundations. The bearing is a force transmission device provided at the supporting place of the bridge span structure and the pier or abutment. The accessory structures refer to approach slabs, tapered revetments, revetments, diversion works, etc.

[0003] Chinese Patent No. CN202221877980.X discloses a lifting tool for hoisting bridge components, including a top plate, an insertion shell and an empty shell. An empty shell is arranged below the top plate. A movable plate is movably connected inside the empty shell. A pressing switch is fixed at the inner bottom of the empty shell. Insertion shells are provided on both sides of the empty shell. Compression springs are fixedly arranged in a rectangular array at the top of the inner wall of the insertion shell. In the utility model, the device is hung on the hanging mechanism of the crane through the first hook on the top plate. The long-strip bridge component is inserted into the insertion shell. After the second rope below the empty shell is wound around it, and the second hook is stuck on the second rope above the bridge component, the hoisting of the long-strip bridge component can be started.

[0004] As can be seen from the above, the problem that the existing lifting tool for hoisting bridge components cannot conveniently hoist long-strip bridge components is solved. The hanging rope is directly wound around the block-shaped bridge component. When it is necessary to hoist a long-strip bridge component, the end of the long-strip bridge component is stuffed into the insertion shell. However, there are still the following deficiencies in this case: When hoisting construction materials during bridge construction, it is often necessary to hoist construction materials of different specifications. When the construction materials and the supporting points of the lifting tool cannot be adapted, readjustment is required, resulting in cumbersome operation during use and inability to install and adjust according to the actual situation.

[0005] Therefore, a lifting tool for bridge construction is proposed for the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the existing technology and solve the problem of cumbersome operation during use, the utility model proposes a lifting tool for bridge construction.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A sling for bridge construction described in the present utility model includes a main body and a movable adaptation component; a fixed rod is installed on the movable adaptation component, a rack is fixedly installed on one side of the fixed rod, a gear is drivingly connected to the top of the rack, the gear is fixedly installed at the output end of a torque motor, a mounting plate is fixedly installed on one side of the torque motor, and a movable plate is fixedly installed on the other side of the mounting plate.

[0008] Preferably, a first hook is installed on the main body, and a fixed rod is suspended at the bottom of the first hook through a first traction rope.

[0009] Preferably, two limiting rods are fixedly installed on one side of the fixed rod, and four limiting sliders are respectively movably installed on one side of the two limiting rods.

[0010] Preferably, a movable plate is fixedly installed on one side of the front surface of the limiting slider, and a movable plate is fixedly installed on one side of the front surface of the limiting slider.

[0011] Preferably, a second hook is fixedly installed on one side of the movable plate, a first connecting rod is suspended at the bottom of the second hook through a second traction rope, and second pulleys are fixedly installed at both ends of the first connecting rod.

[0012] Preferably, a third hook is fixedly installed on one side of the fixed rod, a second connecting rod is suspended at the bottom of the third hook through a third traction rope, and first pulleys are fixedly installed at both sides of the second connecting rod.

[0013] The advantages of the present utility model are as follows:

[0014] Through the structural design of the movable adaptation component of the present utility model, the gear at the output end is rotated by driving the torque motor. When the gear and the rack are in driving cooperation with each other, the rotational movement of the gear is converted into the linear movement of the mounting plate and the movable plate. The cooperation of the limiting rod and the limiting slider limits the movable plate and the mounting plate, changes the supporting points of the building materials, realizes the function of adaptive adjustment, solves the problem of cumbersome operation in the adjustment and use, and improves the limitations in the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Exploded schematic diagram of the overall structure of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the activity adaptation component of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at position A in the present utility model;

[0020] Figure 5 Schematic diagram of the structure of the main body of the present utility model.

[0021] In the figure: 1. Main body; 2. Activity adaptation component; 11. First hook; 12. First traction rope; 21. Fixed rod; 22. Limit rod; 23. Limit slider; 24. Movable plate; 25. Mounting plate; 26. Torque motor; 27. Gear; 28. Rack; 29. Second hook; 31. Second traction rope; 32. First connecting rod; 33. Third hook; 34. Third traction rope; 35. Second connecting rod; 36. First pulley; 37. Second pulley. Detailed implementation manners

[0022] Next, with reference to the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 As shown, a lifting tool for bridge construction includes a main body 1 and an activity adaptation component 2; a fixed rod 21 is installed on the activity adaptation component 2, a rack 28 is fixedly installed on one side of the fixed rod 21, the top of the rack 28 is drivingly connected to a gear 27, the gear 27 is fixedly installed at the output end of a torque motor 26, a mounting plate 25 is fixedly installed on one side of the torque motor 26, and a movable plate 24 is fixedly installed on the other side of the mounting plate 25;

[0024] During operation, power is provided by the torque motor 26 to drive the mounting plate 25 at the output end to have a mutual driving cooperation with the rack 28, thereby facilitating the relative movement of the mounting plate 25 and the movable plate 24.

[0025] Furthermore, a first hook 11 is installed on the main body 1, and the fixed rod 21 is suspended at the bottom of the first hook 11 through a first traction rope 12;

[0026] During operation, through the installation of the first hook 11, the whole is supported during use, and the fixed rod 21 is driven to move correspondingly by the first towing rope 12, which is beneficial to moving the building materials to the designated position.

[0027] Furthermore, two limiting rods 22 are fixedly installed on one side of the fixed rod 21, and four limiting sliders 23 are respectively movably installed on one side of the two limiting rods 22;

[0028] During operation, through the installation of the limiting rods 22 and the limiting sliders 23, it is beneficial for load bearing and support, and at the same time, the limiting sliders 23 can move on the limiting rods 22.

[0029] Furthermore, a movable plate 24 is fixedly installed on one side of the front surface of the limiting slider 23, and a movable plate 24 is fixedly installed on one side of the front surface of the limiting slider 23;

[0030] During operation, when the movable plate 24 and the mounting plate 25 linearly move on the fixed rod 21, through the cooperation of the limiting rods 22 and the limiting sliders 23, the movement thereof is limited, which is beneficial to ensuring the stability during movement.

[0031] Furthermore, a second hook 29 is fixedly installed on one side of the movable plate 24. A first connecting rod 32 is suspended at the bottom of the second hook 29 through a second towing rope 31, and second pulleys 37 are fixedly installed at both ends of the first connecting rod 32;

[0032] During operation, when the movable plate 24 moves, it drives the second hook 29 to move correspondingly. At the same time, the first connecting rod 32 is driven by the second towing rope 31 to correspondingly change the support points of the building materials.

[0033] Furthermore, a third hook 33 is fixedly installed on one side of the fixed rod 21. A second connecting rod 35 is suspended at the bottom of the third hook 33 through a third towing rope 34, and first pulleys 36 are fixedly installed at both sides of the second connecting rod 35;

[0034] During operation, through the installation of the third hook 33, when the whole hoists the building materials, multi-point support work is carried out.

[0035] Working principle: When hoisting building materials, the driving torque motor 26 is used to make the gear 27 at the output end perform a rotational motion. One side of the gear 27 is in transmission cooperation with the rack 28 during operation, converting the rotational motion of the gear 27 into the linear motion of the mounting plate 25 and the movable plate 24. The cooperation between the limit rod 22 and the limit slider 23 is used to limit the movable plate 24 and the mounting plate 25, ensuring that the movable plate 24 always moves horizontally. When the movable plate 24 moves, it drives the second hook 29 to move synchronously, thereby adjusting the first connecting rod 32 suspended at the bottom, changing the position of the second pulley 37 accordingly, and changing the support points of the building materials, so as to realize the overall hoisting work of building materials of different specifications.

[0036] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A lifting device for bridge construction, characterized in that: The invention comprises a main body (1) and an active adaptable component (2); the active adaptable component (2) is installed with a fixed rod (21); a rack (28) is fixedly installed on one side of the fixed rod (21); a gear (27) is transmission-connected to the top of the rack (28); the gear (27) is fixedly installed on the output end of a torque motor (26); a mounting plate (25) is fixedly installed on one side of the torque motor (26); and a movable plate (24) is fixedly installed on the other side of the mounting plate (25).

2. A lifting device for bridge construction according to claim 1, characterized in that: The main body (1) is installed with a first hook (11), and a fixing rod (21) is suspended at the bottom of the first hook (11) via a first traction rope (12).

3. A lifting device for bridge construction according to claim 2, characterized in that: Two limiting rods (22) are fixedly mounted on one side of the fixing rod (21), and four limiting sliding blocks (23) are movably mounted on one side of each of the two limiting rods (22).

4. A lifting device for bridge construction according to claim 3, characterized in that: A movable plate (24) is fixedly mounted on the front side of the position-limiting sliding block (23). A movable plate (24) is fixedly mounted on the front side of the position-limiting sliding block (23).

5. A lifting device for bridge construction according to claim 4, characterized in that: A second hook (29) is fixedly mounted on one side of the movable plate (24); a first connecting rod (32) is suspended at the bottom of the second hook (29) via a second traction rope (31); and second pulleys (37) are fixedly mounted at both ends of the first connecting rod (32).

6. The lifting device for bridge construction according to claim 1, characterized in that: A third hook (33) is fixedly mounted on one side of the fixed rod (21), a second connecting rod (35) is suspended at the bottom of the third hook (33) via a third traction rope (34), and a first pulley (36) is fixedly mounted on both sides of the second connecting rod (35).

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