Prefabricated part hoisting tool

Abstract

The utility model discloses a prefabricated part hoisting tool which comprises a left base plate, a right base plate and a two-way screw rod, a stepping motor is fixedly installed at the left end of the two-way screw rod, a screw block is connected to the outer side of the two-way screw rod in a threaded mode, a linkage rod is fixedly installed on the upper side of the screw block, a guide block is fixedly installed at the upper end of the linkage rod, and the left end of the guide block is fixedly connected with the right base plate. An L-shaped frame is fixedly installed on the lower side of the screw block, an arc-shaped pipe piece is arranged on the inner side of the L-shaped frame, a balancing weight is arranged on the right side of the right base plate, a traction rope is fixedly installed on the upper side of the left base plate, a hanging head is fixedly installed in the middle of the traction rope, and a motor fixing piece is fixedly installed on the outer side of a stepping motor. The L-shaped frame, the stepping motor, the two-way screw rod, the screw block, the guide block, the guide rod, the hanging head and the traction rope are used in cooperation, arc-shaped pipe pieces with different diameters can be clamped and fixed, a hanging tool matched with the diameter of the arc-shaped pipe piece does not need to be customized, the cost is reduced, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated component lifting tools, in particular to a prefabricated component lifting tool. Background Art

[0002] A shield tunnel is a structure made up of prefabricated curved segments connected and assembled with bolts. It is constructed using the shield method, a fully mechanized construction method within the underground excavation method. It involves pushing a shield machine underground, using the shield shell and segments to support the surrounding rock to prevent collapse into the tunnel. At the same time, soil is excavated in front of the excavation face with a cutting device, transported out of the tunnel by excavation machinery, and pressurized and pushed forward at the rear by jacks. Precast concrete segments are then assembled to form a mechanized tunnel structure.

[0003] In real life, the diameters of the curved segments used in different shield tunnels are inconsistent. When lifting the curved segments, prefabricated component lifting tools need to be customized to match the diameter of the curved segments, which greatly increases the cost and has low practicality. Therefore, we propose a new type of prefabricated component lifting tool. Utility Model Content

[0004] The utility model provides a prefabricated component hoisting tool to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A prefabricated component lifting tool comprises a left base plate and a right base plate, a guide rod is fixedly installed on the inner side of the left base plate, a bidirectional screw is provided just below the guide rod, a stepping motor is fixedly installed on the left end of the bidirectional screw, a screw block is threadedly connected to the outer side of the bidirectional screw, a linkage rod is fixedly installed on the upper side of the screw block, a guide block is fixedly installed on the upper end of the linkage rod, an L-frame is fixedly installed on the lower side of the screw block, an arc-shaped pipe segment is provided on the inner side of the L-frame, a counterweight block is provided on the right side of the right base plate, a traction rope is fixedly installed on the upper side of the left base plate, a lifting head is fixedly installed in the middle of the traction rope, a motor fixing part is fixedly installed on the outer side of the stepping motor, and a counterweight fixing part is fixedly installed on the outer side of the counterweight block.

[0007] As a further improvement of the present technical solution: the left end of the traction rope is fixedly mounted on the left base plate, and the right end of the traction rope is fixedly mounted on the right base plate.

[0008] As a further improvement of the present technical solution: the guide block is slidably connected to the guide rod.

[0009] As a further improvement of the present technical solution: the weight of the stepper motor and the motor fixing member is equal to the weight of the counterweight block and the counterweight block fixing member.

[0010] As a further improvement of the present technical solution: the motor fixing member is fixedly installed on the left base plate, and the counterweight fixing member is fixedly installed on the right base plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The L-frame, stepper motor, bidirectional screw, screw block, guide block, guide rod, lifting head and traction rope are used together to clamp and fix curved pipe segments of different diameters. There is no need to customize lifting tools that are suitable for the diameter of the curved pipe segments, which reduces its cost and improves practicality.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the counterweight block of the utility model;

[0017] Figure 3 It is a schematic diagram of the L-frame structure of the present utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Left base plate; 2. Right base plate; 3. Guide rod; 4. Bidirectional screw; 5. Stepper motor; 6. Screw block; 7. Linkage rod; 8. Guide block; 9. L-frame; 10. Arc segment; 11. Counterweight; 12. Traction rope; 13. Lifting head; 14. Motor fixing; 15. Counterweight fixing. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are not in exact proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] See also Figures 1 to 3 In the embodiment of the present utility model, a prefabricated component lifting tool includes a left base plate 1 and a right base plate 2. A guide rod 3 is fixedly installed on the inner side of the left base plate 1, and a bidirectional screw 4 is arranged just below the guide rod 3. A stepping motor 5 is fixedly installed on the left end of the bidirectional screw 4, and a screw block 6 is threadedly connected to the outer side of the bidirectional screw 4. A linkage rod 7 is fixedly installed on the upper side of the screw block 6, and a guide block 8 is fixedly installed on the upper end of the linkage rod 7. An L frame 9 is fixedly installed on the lower side of the screw block 6, and an arc-shaped pipe segment 10 is arranged on the inner side of the L frame 9. A counterweight block 11 is provided on the right side of the right base plate 2, a traction rope 12 is fixedly installed on the upper side of the left base plate 1, and a lifting head 13 is fixedly installed at the middle of the traction rope 12. A motor fixing part 14 is fixedly installed on the outer side of the stepping motor 5, and a counterweight fixing part 15 is fixedly installed on the outer side of the counterweight block 11.

[0024] See also Figure 1-2 The left end of the traction rope 12 is fixedly installed on the left base plate 1, and the right end of the traction rope 12 is fixedly installed on the right base plate 2. The traction rope 12 and the lifting head 13 are used in conjunction with each other to facilitate the external power mechanism to connect the entire prefabricated component lifting tool.

[0025] See also Figure 1-2The guide block 8 is slidably connected to the guide rod 3. By cooperating with the guide block 8 and the guide rod 3, the guide rod 3 and the guide block 8 will force the screw block 6 to move horizontally on the bidirectional screw 4 and will not rotate with it.

[0026] See also Figure 1-2 The weight of the stepper motor 5 and the motor fixing part 14 is equal to the weight of the counterweight block 11 and the counterweight block fixing part 15. By setting the weight of the stepper motor 5 and the motor fixing part 14 to be equal to the weight of the counterweight block 11 and the counterweight block fixing part 15, it is possible to ensure the balance of the left and right sides of the prefabricated component lifting tool, facilitate daily lifting operations of the curved pipe segment 10, and will not cause offset due to uneven force on the left and right sides.

[0027] See also Figure 1-2 The motor fixing member 14 is fixedly mounted on the left substrate 1 , and the counterweight fixing member 15 is fixedly mounted on the right substrate 2 . The stepper motor 5 can be fixed by the motor fixing member 14 , and the counterweight fixing member 15 can fix the counterweight 11 .

[0028] The working principle of the present invention is as follows: when using the prefabricated component lifting tool, the distance between the left and right L frames 9 is adjusted according to the diameter of the arc-shaped pipe segment 10, the stepper motor 5 is started, the stepper motor 5 drives the bidirectional screw 4 to rotate forward, the screw blocks 6 on the bidirectional screw 4 approach each other, the linkage rod 7 moves with the screw block 6, the linkage rod 7 drives the guide block 8 to move, the guide block 8 moves on the guide rod 3, the guide rod 3 and the guide block 8 force the screw block 6 to move horizontally on the bidirectional screw 4 and will not rotate with it, so that The screw block 6 moves more stably on the bidirectional screw 4. When the left and right L frames 9 are clamped to the bottom of the arc-shaped pipe segment 10, the stepper motor 5 is turned off, and then the external power mechanism is used to connect to the lifting head 13. With the coordinated use of the lifting head 13, the traction rope 12 and the external power mechanism, the arc-shaped pipe segment 10 can be moved to the specified position. The prefabricated component lifting tool can clamp and fix arc-shaped pipe segments 10 of different diameters. There is no need to customize the lifting tool to match the diameter of the arc-shaped pipe segment, which reduces its cost and improves practicality.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A prefabricated component lifting tool, characterized in that: The invention comprises a left base plate (1) and a right base plate (2), wherein a guide rod (3) is fixedly mounted on the inner side of the left base plate (1), a bidirectional screw rod (4) is arranged directly below the guide rod (3), a stepping motor (5) is fixedly mounted on the left end of the bidirectional screw rod (4), a screw block (6) is threadedly connected to the outer side of the bidirectional screw rod (4), a linkage rod (7) is fixedly mounted on the upper side of the screw block (6), a guide block (8) is fixedly mounted on the upper end of the linkage rod (7), and a stepping motor (5) is fixedly mounted on the left end of the bidirectional screw rod (4). An L frame (9) is fixedly installed on the side, an arc-shaped pipe segment (10) is arranged on the inner side of the L frame (9), a counterweight (11) is arranged on the right side of the right base plate (2), a traction rope (12) is fixedly installed on the upper side of the left base plate (1), a hanging head (13) is fixedly installed in the middle of the traction rope (12), a motor fixing part (14) is fixedly installed on the outer side of the stepping motor (5), and a counterweight fixing part (15) is fixedly installed on the outer side of the counterweight (11).

2. A prefabricated component lifting tool according to claim 1, characterized in that: The left end of the traction rope (12) is fixedly mounted on the left base plate (1), and the right end of the traction rope (12) is fixedly mounted on the right base plate (2).

3. A prefabricated component lifting tool according to claim 1, characterized in that: The guide block (8) is slidably connected to the guide rod (3).

4. A prefabricated component lifting tool according to claim 1, characterized in that: The weight of the stepper motor (5) and the motor fixing member (14) is equal to the weight of the counterweight (11) and the counterweight fixing member (15).

5. A prefabricated component lifting tool according to claim 1, characterized in that: The motor fixing member (14) is fixedly mounted on the left base plate (1), and the counterweight fixing member (15) is fixedly mounted on the right base plate (2).

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