A novel handling device for precast components

By designing a new type of handling device for precast components, the device utilizes a motor-driven chain and counterweight to lift and lower the precast components, and is equipped with limit and buffer devices. This solves the problems of low efficiency and safety risks associated with manual handling, and improves construction efficiency and safety.

CN224279634UActive Publication Date: 2026-05-26SHANGHAI HANSHI YUNSHENG HOUSING IND DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HANSHI YUNSHENG HOUSING IND DEV CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Manually moving prefabricated components is physically demanding, inefficient, and poses safety risks, such as sprained backs or crushed hands and feet.

Method used

A novel handling device for precast components has been designed, comprising a lifting assembly and a limiting assembly. The device utilizes a motor-driven chain and counterweight to lift the precast components, and combines a limiting plate and a snap-fit ​​plate to prevent them from falling. It is also equipped with a buffer device and a weighing sensor to improve safety and ease of operation.

Benefits of technology

It enables efficient and safe handling of prefabricated components, reduces the labor intensity of construction workers, and minimizes safety risks and construction costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a novel handling device for precast components, belonging to the field of precast component handling. It includes a top plate, on which a lifting assembly for lifting and transporting precast components is installed. The lifting assembly also includes a limiting assembly for preventing the precast components from falling. In use, the precast component is placed on the lifting body, and the top plate is connected to the floor level of the project. A motor drives a first sprocket to rotate, which in turn drives a chain. The chain then drives counterweights and the lifting body at both ends to move up and down. A second sprocket assists the chain movement. The counterweights prevent excessive motor pressure caused by relying solely on the motor. First and second limiting plates limit the placement of the precast component to prevent it from falling and causing accidents. First and second locking plates facilitate easy opening for placing or removing the precast component.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated component handling, and more specifically, to a novel handling device for prefabricated components. Background Technology

[0002] Precast components play a crucial role in engineering construction. They are building components manufactured in advance in factories or prefabrication sites, offering significant advantages: In terms of quality, the stable factory production environment allows for strict control of raw materials and processes, resulting in reliable quality and high precision, which can reduce on-site construction errors; in terms of efficiency, factory production and on-site assembly shorten the construction period and improve progress; in terms of environmental protection, it reduces on-site construction requirements and reduces pollution; and it is also convenient for transportation and storage, allowing for advance stockpiling and flexible allocation. With the development of building industrialization, the status of precast components will become even more important.

[0003] While prefabricated components offer numerous advantages in current engineering construction, they also present challenges. The manual handling of prefabricated components is a significant problem. Their large size and heavy weight make manual handling physically demanding and prone to causing injuries such as twisted backs or broken hands and feet due to improper force or posture, thus affecting progress and increasing safety risks and costs. Therefore, a new type of handling device is needed. Utility Model Content

[0004] The purpose of this utility model is to address the prominent problem of inconvenience in manual handling of prefabricated components. These components are large and heavy, and manual handling requires a lot of physical strength, resulting in low efficiency. Moreover, during the handling process, personnel are prone to injury due to improper force or incorrect posture, such as twisting the waist or injuring the hands and feet. This not only affects the construction progress but also increases safety risks and costs.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a novel handling device for precast components, comprising a top plate, wherein a lifting assembly for lifting and transporting precast components is provided on the top plate, and a limiting assembly for limiting the precast components to prevent them from falling is provided on the lifting assembly.

[0007] The lifting assembly includes four sliding columns fixedly connected to the bottom of the top plate. A grounding plate is fixedly connected to the bottom of each sliding column. A motor is fixedly installed on the top of the top plate. A first sprocket is fixedly connected to the output end of the motor. A second sprocket is rotatably installed on the top of the top plate. Five chains are connected to the periphery of the first and second sprockets under tension. A lifting body is fixedly connected to one end of each of the five chains, and a counterweight is fixedly connected to the other end of each chain. The lifting body is slidably connected to the periphery of the four sliding columns.

[0008] As a preferred technical solution of this utility model, a first limiting plate is welded to the top of the bottom platform of the lifting body, and a second limiting plate is welded to the top of the bottom platform of the lifting body. There are four second limiting plates, which are evenly distributed on the top of the bottom platform of the lifting body. A first locking plate is snapped into the top of the bottom platform of the lifting body, and a second locking plate is snapped into the opposite side of the two second limiting plates.

[0009] As a preferred technical solution of this utility model, a buffer spring is fixedly installed on the top of the grounding plate. The number of buffer springs is several and they are evenly distributed on the top of the grounding plate. A buffer plate is fixedly connected to the top of the several buffer springs.

[0010] As a preferred technical solution of this utility model, a weighing sensor is fixedly installed on the top of the buffer plate, a display is provided on the top of the buffer plate, and a speaker is provided on the top of the buffer plate.

[0011] As a preferred technical solution of this utility model, a number of fixing posts are welded to the side of the second limiting plate away from the second snap-fit ​​plate, and fixing ropes are connected to the peripheral joints of the two fixing posts.

[0012] As a preferred technical solution of this utility model, a protective shell is fixedly installed on the top of the top plate. The protective shell is used in conjunction with the motor protection, and a switch door is hinged to the top of the protective shell.

[0013] As a preferred technical solution of this utility model, floodlights are fixedly installed on the lifting body, and the number of floodlights is four and they are evenly distributed on the lifting body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. With the lifting assembly in place, prefabricated parts are placed on the lifting body during use. The top slab is connected to the floor of the project point. The motor drives the first sprocket to rotate, which in turn drives the chain to move. The chain then drives the counterweights and the lifting body connected at both ends to move up and down. The second sprocket works with the chain to facilitate the chain's movement. The counterweights can prevent the motor from being under excessive pressure due to relying solely on the motor to drive it.

[0016] 2. With the setting of the limiting components, the first limiting plate and the second limiting plate limit the placement of the precast component during use to prevent the precast component from falling and causing accidents. The first snap-fit ​​plate and the second snap-fit ​​plate can be opened easily to facilitate the placement or removal of the precast component. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the novel handling device for prefabricated components provided by this utility model;

[0018] Figure 2 A schematic diagram of the protective shell structure of the novel handling device for prefabricated components provided by this utility model;

[0019] Figure 3 A schematic diagram of the fixing column structure of the novel handling device for prefabricated components provided by this utility model;

[0020] Figure 4 Left view of the novel handling device for prefabricated components provided by this utility model;

[0021] Figure 5 The present invention provides a novel handling device for prefabricated components. Figure 3 A three-dimensional cross-sectional view at point AA;

[0022] Figure 6 A schematic diagram of the limiting component structure of the novel handling device for prefabricated components provided by this utility model.

[0023] The diagram shows: 1. Top plate; 2. Lifting assembly; 3. Limiting assembly; 201. Sliding column; 202. Grounding plate; 203. Motor; 204. First sprocket; 205. Second sprocket; 206. Chain; 207. Lifting body; 208. Counterweight; 301. First limiting plate; 302. Second limiting plate; 303. First locking plate; 304. Second locking plate; 4. Buffer spring; 5. Buffer plate; 6. Weighing sensor; 7. Display; 8. Speaker; 9. Fixing column; 10. Fixing rope; 11. Protective shell; 12. Opening and closing door; 13. Floodlight. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1 As shown, this embodiment proposes a novel handling device for precast components, including a top plate 1, a lifting assembly 2 for lifting and transporting precast components on the top plate 1, and a limiting assembly 3 for limiting the precast components to prevent them from falling off the lifting assembly 2.

[0029] like Figure 3 and Figure 5 As shown, the lifting assembly 2 includes four sliding columns 201 fixedly connected to the bottom of the top plate 1. A ground plate 202 is fixedly connected to the bottom of the sliding column 201 for fixing the sliding column 201. A motor 203 is fixedly installed on the top of the top plate 1 for providing power. A first sprocket 204 is fixedly connected to the output end of the motor 203. A second sprocket 205 is rotatably installed on the top of the top plate 1. Five chains 206 are connected to the periphery of the first sprocket 204 and the second sprocket 205 under common tension. A lifting body 207 is fixedly connected to one end of the five chains 206 for placing prefabricated parts for transportation. A counterweight 208 is fixedly connected to the other end of the chains 206 for cooperating with the motor 203 to raise or lower the lifting body 207. The lifting body 207 is slidably connected to the periphery of the four sliding columns 201. In use, prefabricated components are placed on the lifting body 207, and the top plate 1 is connected to the floor of the project point. The motor 203 drives the first sprocket 204 to rotate, thereby driving the chain 206 to move. The chain 206 then drives the counterweights 208 connected at both ends and the lifting body 207 to move up and down. The second sprocket 205 cooperates with the chain 206 to facilitate the movement of the chain 206. The counterweights 208 can prevent the motor 203 from being driven by the motor alone, which would cause excessive pressure on the motor 203.

[0030] like Figure 6 As shown, a first limiting plate 301 is welded to the top of the bottom platform of the lifting body 207, and a second limiting plate 302 is welded to the top of the bottom platform of the lifting body 207. These are used to limit the prefabricated parts to prevent them from falling. There are four second limiting plates 302, which are evenly distributed on the top of the bottom platform of the lifting body 207. A first locking plate 303 is engaged with the top of the bottom platform of the lifting body 207. A second locking plate 304 is engaged with the opposite side of the two second limiting plates 302, which is used to facilitate opening for loading or removing the prefabricated parts. In use, the first limiting plate 301 and the second limiting plate 302 limit the placed prefabricated parts to prevent them from falling and causing accidents. The first locking plate 303 and the second locking plate 304 facilitate opening for the placement or removal of the prefabricated parts.

[0031] like Figure 2As shown, a number of buffer springs 4 are fixedly installed on the top of the grounding plate 202 and are evenly distributed on the top of the grounding plate 202. A buffer plate 5 is fixedly connected to the top of the buffer springs 4. The buffer plate 5 is used to buffer the lifting body 207. In use, the buffer springs 4 buffer the descending lifting body 207 to prevent collision damage, and the buffer plate 5 increases the contact buffer area of ​​the lifting body 207, making the buffering force more even.

[0032] like Figure 3 As shown, a weighing sensor 6 is fixedly installed on the top of the buffer plate 5, a display 7 is installed on the top of the buffer plate 5, and a speaker 8 is installed on the top of the buffer plate 5. In use, the weighing sensor 6 weighs the placed precast components to prevent accidents caused by placing too many precast components at once, and the weight is displayed on the display 7. When overload occurs, the speaker 8 will issue a warning.

[0033] like Figure 3 As shown, several fixing posts 9 are welded to the side of the second limiting plate 302 away from the second snap-fit ​​plate 304. Fixing ropes 10 are connected to the peripheral joints of two fixing posts 9. The fixing ropes 10 span the top of a pair of second limiting plates 302 to stop the precast component below. In use, the fixing ropes 10 are used to secure the component, preventing it from accidentally falling through the gap above and further enhancing safety.

[0034] like Figure 2 As shown, a protective shell 11 is fixedly installed on the top of the top plate 1. The protective shell 11 is used in conjunction with the motor 203 for protection. A hinged door 12 is connected to the top of the protective shell 11. In use, the protective shell 11 protects the motor 203 from damage caused by wind and sun.

[0035] like Figure 5 As shown, four floodlights 13 are fixedly installed on the lifting body 207 and are evenly distributed on the lifting body 207. In use, the floodlights 13 facilitate nighttime use and help determine the position of the lifting body 207 at night.

[0036] Specifically, when using the new handling device for this precast component: The precast component is placed on the lifting body 207. The top slab 1 is connected to the floor level of the project site. The motor 203 drives the first sprocket 204 to rotate, thereby driving the chain 206 to move. The chain 206 then drives the counterweights 208 connected to both ends of the chain and the lifting body 207 to move up and down. The second sprocket 205 cooperates with the chain 206 to facilitate its movement. The counterweights 208 prevent excessive pressure on the motor 203 caused by relying solely on the motor for operation (e.g., ...). Figure 3 and Figure 5As shown), the first limiting plate 301 and the second limiting plate 302 limit the placement of the precast component to prevent it from falling and causing an accident. The first locking plate 303 and the second locking plate 304 facilitate opening, allowing for the insertion or removal of the precast component (as shown). Figure 3 and Figure 5 As shown), the descending lifting body 207 is cushioned by the buffer spring 4 to prevent collision damage, and the contact buffer area of ​​the lifting body 207 is increased by the buffer plate 5 to make the buffering force more even (as shown). Figure 2 (As shown).

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A novel handling device for precast components, comprising a top plate (1), characterized in that, The top plate (1) is provided with a lifting assembly (2) for lifting and transporting prefabricated components, and the lifting assembly (2) is provided with a limiting assembly (3) for limiting the prefabricated components to prevent them from falling. The lifting assembly (2) includes four sliding columns (201) fixedly connected to the bottom of the top plate (1). The bottom of the sliding column (201) is fixedly connected to a grounding plate (202). A motor (203) is fixedly installed on the top of the top plate (1). A first sprocket (204) is fixedly connected to the output end of the motor (203). A second sprocket (205) is rotatably installed on the top of the top plate (1). Five chains (206) are connected to the periphery of the first sprocket (204) and the second sprocket (205) under tension. A lifting body (207) is fixedly connected to one end of the five chains (206). A counterweight (208) is fixedly connected to the other end of the chains (206). The lifting body (207) is slidably connected to the periphery of the four sliding columns (201).

2. The novel handling device for prefabricated components according to claim 1, characterized in that, A first limiting plate (301) is welded to the top of the bottom platform of the lifting body (207), and a second limiting plate (302) is welded to the top of the bottom platform of the lifting body (207). There are four second limiting plates (302) evenly distributed on the top of the bottom platform of the lifting body (207). A first locking plate (303) is snapped into the top of the bottom platform of the lifting body (207), and a second locking plate (304) is snapped into the opposite side of the two second limiting plates (302).

3. The novel handling device for prefabricated components according to claim 1, characterized in that, A buffer spring (4) is fixedly installed on the top of the grounding plate (202). The number of buffer springs (4) is several and they are evenly distributed on the top of the grounding plate (202). A buffer plate (5) is fixedly connected to the top of several buffer springs (4).

4. A novel handling device for prefabricated components according to claim 3, characterized in that, A weighing sensor (6) is fixedly installed on the top of the buffer plate (5), a display (7) is provided on the top of the buffer plate (5), and a speaker (8) is provided on the top of the buffer plate (5).

5. A novel handling device for prefabricated components according to claim 2, characterized in that, A number of fixing posts (9) are welded to the side of the second limiting plate (302) away from the second snap-fit ​​plate (304), and fixing ropes (10) are connected to the periphery joints of two of the fixing posts (9).

6. A novel handling device for prefabricated components according to claim 1, characterized in that, A protective shell (11) is fixedly installed on the top of the top plate (1). The protective shell (11) is used in conjunction with the motor (203) for protection. A switch door (12) is hinged to the top of the protective shell (11).

7. A novel handling device for prefabricated components according to claim 1, characterized in that, The lifting body (207) is fixedly equipped with floodlights (13), and there are four floodlights (13) evenly distributed on the lifting body (207).