Construction device for concrete finishing

By setting up a movable working platform above the concrete surface, the problem of workers having nowhere to stand was solved, the finishing quality and construction efficiency of the precast box girder were improved, and the quality requirements were met.

CN224374425UActive Publication Date: 2026-06-19CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, the construction quality requirements for precast box girders are not high. Workers stand directly on the concrete surface to finish the surface after the initial setting of the poured concrete, resulting in the finishing quality failing to meet the requirements.

Method used

Design a construction device for concrete finishing, including a traveling mechanism, a working platform and a hanging assembly. By setting the working platform above the concrete surface, the working platform is moved using a drive assembly and a hanging assembly, providing a standing position and avoiding stepping on the concrete surface.

Benefits of technology

It improved the quality of concrete finishing, reduced trampling on the concrete surface, increased construction efficiency, and enhanced the reliability and safety of construction equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of railway engineering infrastructure construction technology, and in particular to a construction device for concrete surface finishing. The construction device includes: a traveling mechanism equipped with a guide rail and a drive assembly, the drive assembly being movably mounted on the guide rail; a working platform horizontally suspended above the concrete surface; and a hanging assembly, the upper end of which is connected to the drive assembly, and the lower end of which is connected to the working platform; wherein the working platform is arranged perpendicular to the movement direction of the traveling mechanism, and both ends of the working platform are respectively connected to two parallel and spaced traveling mechanisms via the hanging assembly. In this utility model, by providing a working platform for workers to stand on, the concrete surface is prevented from being trampled on, and the work is facilitated, improving the finishing quality; by using the traveling mechanism to move the working platform, repetitive walking by workers is avoided, greatly improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of railway engineering infrastructure construction technology, and in particular to a construction device for concrete finishing. Background Technology

[0002] Currently, the scale of railway infrastructure construction in my country is continuously expanding. Most areas outside urban areas are mountainous, hilly, and plateau regions. Many railway sections built in complex terrain require bridges for connection. Therefore, railway infrastructure construction necessitates the fabrication of a large number of precast box girders to facilitate bridge installation.

[0003] However, existing technologies generally do not have high requirements for the construction quality of precast box girders, and there is a lack of construction devices that can help improve the quality of precast box girders. When making precast box girders, workers often stand directly on the concrete surface to finish the surface after the initial setting of the poured concrete, resulting in the finishing quality failing to meet the requirements. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the related art. To this end, this utility model proposes a construction device for concrete finishing, so as to solve the problem that workers have nowhere to stand and can only step on the concrete surface during concrete finishing construction.

[0005] This utility model provides a construction device for concrete finishing, the construction device includes:

[0006] The traveling mechanism is provided with a guide rail and a drive assembly, wherein the drive assembly is movably mounted on the guide rail;

[0007] The work platform is horizontally suspended above the concrete surface;

[0008] A suspension assembly, the upper end of which is connected to the drive assembly, and the lower end of which is connected to the work platform;

[0009] The work platform is positioned perpendicular to the direction of movement of the traveling mechanism, and both ends of the work platform are connected to two traveling mechanisms that are arranged in parallel and spaced apart, respectively, through the hanging assembly.

[0010] According to the present invention, a construction device for concrete finishing is provided, wherein the working platform includes:

[0011] A base plate, the length of which is greater than the interval between the two traveling mechanisms, is used to support construction personnel and the tools required for construction.

[0012] A crossbeam is disposed on the lower surface of the base plate, the crossbeam extends along the width direction of the base plate and its two ends protrude from the base plate, for connection with the hanging assembly;

[0013] The two crossbeams are respectively disposed at both ends of the base plate and correspond one-to-one with the traveling mechanism above the base plate.

[0014] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein the working platform further includes guardrails, the guardrails extending vertically upward from the base plate, and two guardrails are respectively connected to the long edge of the base plate.

[0015] According to the present invention, a construction device for concrete finishing is provided, wherein the hanging assembly includes: a hook;

[0016] A first rope, the upper end of which is connected to the drive assembly, and the lower end of which is connected to the hook;

[0017] The second rope has its two ends connected to both sides of the width of the work platform;

[0018] The hook is connected to the middle of the second rope.

[0019] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein a pulley is provided at the upper end of the hook, both ends of the first rope are connected to the drive assembly, and the middle part of the first rope is wrapped around the outer circumference of the pulley for adjusting the height of the working platform.

[0020] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein the guardrail consists of a plurality of vertically spaced vertical bars installed on the base plate and a plurality of horizontal bars connecting adjacent vertical bars.

[0021] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein the width of the base plate is at least greater than 1.5 meters.

[0022] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein the height of the guardrail is 0.3 meters.

[0023] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein the driving component is an electric hoist, one end of the first rope is connected to the outer surface of the electric hoist, and the other end of the first rope is connected to the output shaft of the electric hoist. When the output shaft rotates, it can drive the first rope to wind around its outer circumference, thereby adjusting the height of the working platform.

[0024] According to the present invention, a construction device for finishing concrete surfaces is provided, wherein a rack is provided on the guide rail and the rack extends along the length direction of the guide rail;

[0025] The electric hoist is connected to the rack and pinion drive and is used to control the work platform to move along the extension direction of the guide rail.

[0026] The above-mentioned one or more technical solutions of this utility model have at least one of the following technical effects: by setting up a working platform above the concrete surface for workers to stand on, it can not only prevent the concrete surface from being trampled on, but also facilitate the finishing work and help improve the finishing quality; by moving the working platform through the walking mechanism, it can avoid workers from walking repeatedly and greatly improve work efficiency.

[0027] In addition to the technical problems solved by this utility model, the technical features of the technical solutions constituted by this utility model, and the advantages brought about by these technical features, as described above, other technical features of this utility model and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or can be learned through the practice of this utility model. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A three-dimensional structural diagram of the construction device provided in an embodiment of this utility model.

[0030] Figure label:

[0031] 100. Traveling mechanism; 110. Guide rail; 120. Drive assembly; 200. Working platform; 210. Base plate; 220. Crossbeam; 230. Guardrail; 231. Vertical bar; 232. Horizontal bar; 300. Suspension assembly; 310. Hook; 320. First rope; 330. Second rope. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In this utility model, concrete finishing refers to a series of treatments carried out after concrete pouring in order to achieve a smooth, dense, and aesthetically pleasing surface.

[0034] Currently, the scale of railway infrastructure construction in my country is continuously expanding. At the same time, my country's vast territory is characterized by complex and varied terrain. Most areas outside cities are mountainous, hilly, and plateau regions. Many railway sections built in complex terrain require bridges for connection. Therefore, railway infrastructure construction necessitates the fabrication of a large number of precast box girders to facilitate bridge installation.

[0035] However, existing technologies generally do not have high requirements for the construction quality of precast box girders, and there is a lack of construction devices that can help improve the quality of precast box girders. When making precast box girders, workers often stand directly on the concrete surface to finish the surface after the initial setting of the poured concrete, resulting in the finishing quality failing to meet the requirements.

[0036] To address the problem that workers have nowhere to stand and can only step on the concrete surface during concrete finishing construction, this utility model introduces a construction device for concrete finishing.

[0037] like Figure 1 As shown, the construction device mainly includes a traveling mechanism 100, a working platform 200, and a hanging assembly 300.

[0038] The traveling mechanism 100 is equipped with a guide rail 110 and a drive assembly 120. The drive assembly 120 is movably mounted on the guide rail 110. The work platform 200 is horizontally suspended above the concrete surface.

[0039] The upper end of the suspension assembly 300 is connected to the drive assembly 120. The lower end of the suspension assembly 300 is connected to the work platform 200.

[0040] Furthermore, the work platform 200 is positioned perpendicular to the direction of movement of the traveling mechanism 100. Both ends of the work platform 200 are connected to two parallel, spaced-apart traveling mechanisms 100 via the suspension assembly 300.

[0041] In this embodiment, by setting up a work platform 200 above the concrete surface for workers to stand on, it is possible to avoid trampling on the concrete surface and to facilitate the finishing work, which helps to improve the finishing quality. The work platform 200 is moved by the walking mechanism, which can avoid workers from walking repeatedly and greatly improve work efficiency.

[0042] Based on the above embodiments, this utility model introduces a construction device for concrete finishing.

[0043] The work platform 200 mainly includes a base plate 210 and a crossbeam 220.

[0044] The base plate 210 is longer than the distance between the two traveling mechanisms 100, and is used to support construction personnel and tools required for construction.

[0045] A crossbeam 220 is disposed on the lower surface of the base plate 210. The crossbeam 220 extends along the width direction of the base plate 210. Furthermore, both ends of the crossbeam 220 protrude from the base plate 210 for connection with the suspension assembly 300.

[0046] Two crossbeams 220 are respectively disposed at both ends of the base plate 210. Furthermore, these two crossbeams 220 correspond one-to-one with the traveling mechanism 100 above the base plate 210. This ensures that the hanging assembly 300 remains perpendicular to the base plate 210, reduces the tensile force on the hanging assembly 300, and improves the reliability of the construction device.

[0047] Based on the above embodiments, this utility model introduces a construction device for concrete finishing.

[0048] The work platform 200 also includes guardrails 230. The guardrails 230 extend vertically upward from the base plate 210. Two guardrails 230 are respectively connected to the long edge of the base plate 210.

[0049] Furthermore, the guardrail 230 includes vertical bars 231 and horizontal bars 232. The vertical bars 231 are perpendicular to the surface of the base plate 210. The horizontal bars 232 are parallel to the surface of the base plate 210.

[0050] A plurality of vertical rods 231 are installed at intervals on the base plate 210. Furthermore, horizontal rods 232 connect adjacent vertical rods 231. Preferably, the vertical rods 231 are spaced apart along the long edge of the base plate 210.

[0051] Furthermore, the base plate 210 may also be provided with raised textures on its top surface to prevent workers or tools from slipping off the base plate 210. In addition, in order to enhance the balance of the work platform 200 and provide workers with sufficient space to move comfortably, the width of the base plate 210 is at least greater than 1.5 meters.

[0052] Furthermore, the height of the guardrail 230 is 0.3 meters.

[0053] In this embodiment, by setting guardrails 230 on both sides of the base plate 210, it is possible to prevent workers from falling during construction and to prevent tools or debris from falling from the base plate 210 onto the concrete surface.

[0054] Based on the above embodiments, this utility model introduces a construction device for concrete finishing.

[0055] The suspension assembly 300 mainly includes a hook 310, a first rope 320, and a second rope 330.

[0056] Specifically, the upper end of the first rope 320 is connected to the drive assembly 120. The lower end of the first rope 320 is connected to the hook 310.

[0057] The two ends of the second rope 330 are respectively connected to both sides of the width of the work platform 200.

[0058] The hook 310 is hooked to the middle of the second rope 330.

[0059] Furthermore, a pulley is provided at the upper end of the hook 310, so that the height of the hook 310 and the working platform 200 can be adjusted by pulling the end of the first rope 320.

[0060] Specifically, both ends of the first rope 320 are connected to the drive assembly 120. The middle portion of the first rope 320 is wound around the outer periphery of the pulley for adjusting the height of the work platform 200.

[0061] Based on the above embodiments, this utility model introduces a construction device for concrete finishing.

[0062] The drive assembly 120 is configured as an electric hoist. One end of the first rope 320 is connected to the outer surface of the electric hoist. The other end of the first rope 320 is connected to the output shaft of the electric hoist. When the output shaft rotates, it can cause the first rope 320 to wind around its outer circumference, thereby adjusting the height of the working platform 200.

[0063] Furthermore, a rack is provided on the guide rail 110. The rack extends along the length direction of the guide rail 110.

[0064] The electric hoist is connected to the rack and pinion drive and is used to control the work platform 200 to move along the extension direction of the guide rail 110.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0066] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0068] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms are not limited to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A construction device for finishing concrete surfaces, characterized in that, include: The traveling mechanism (100) is provided with a guide rail (110) and a drive assembly (120), the drive assembly (120) being movably disposed on the guide rail (110); The work platform (200) is horizontally suspended above the concrete surface; A suspension assembly (300) is provided, the upper end of which is connected to the drive assembly (120), and the lower end of which is connected to the work platform (200). The work platform (200) is arranged perpendicular to the movement direction of the traveling mechanism (100), and the two ends of the work platform (200) are respectively connected to two traveling mechanisms (100) arranged in parallel and spaced apart through the hanging assembly (300).

2. The construction device for concrete finishing according to claim 1, characterized in that, The operating platform (200) includes: The base plate (210) is longer than the distance between the two traveling mechanisms (100) and is used to support construction personnel and tools required for construction. A crossbeam (220) is disposed on the lower surface of the base plate (210), the crossbeam (220) extends along the width direction of the base plate (210) and its two ends protrude from the base plate (210), for connection with the hanging assembly (300); The two crossbeams (220) are respectively disposed at both ends of the base plate (210) and correspond one-to-one with the traveling mechanism (100) above the base plate (210).

3. The construction device for concrete finishing according to claim 2, characterized in that, The work platform (200) also includes guardrails (230), which extend vertically upward from the base plate (210), and the two guardrails (230) are respectively connected to the long edge of the base plate (210).

4. The construction device for concrete finishing according to any one of claims 1 to 3, characterized in that, The suspension assembly (300) includes: a hook (310); A first rope (320) is connected at its upper end to the drive assembly (120) and at its lower end to the hook (310). The second rope (330) has its two ends connected to both sides of the width of the working platform (200); The hook (310) is hooked to the middle of the second rope (330).

5. The construction device for concrete finishing according to claim 4, characterized in that, The upper end of the hook (310) is provided with a pulley, and the two ends of the first rope (320) are connected to the drive assembly (120). The middle part of the first rope (320) is wrapped around the outer periphery of the pulley for adjusting the height of the work platform (200).

6. The construction device for concrete finishing according to claim 3, characterized in that, The guardrail (230) consists of a number of vertical bars (231) installed at vertical intervals on the base plate (210) and a number of horizontal bars (232) connecting adjacent vertical bars (231).

7. The construction device for concrete finishing according to claim 6, characterized in that, The width of the base plate (210) is at least greater than 1.5 meters.

8. The construction device for concrete finishing according to claim 7, characterized in that, The height of the guardrail (230) is 0.3 meters.

9. The construction device for concrete finishing according to claim 4, characterized in that, The drive assembly (120) is configured as an electric hoist. One end of the first rope (320) is connected to the outer surface of the electric hoist, and the other end of the first rope (320) is connected to the output shaft of the electric hoist. When the output shaft rotates, it can drive the first rope (320) to wrap around its outer circumference, which is used to adjust the height of the working platform (200).

10. The construction device for concrete finishing according to claim 9, characterized in that, A rack is provided on the guide rail (110), and the rack extends along the length direction of the guide rail (110); The electric hoist is connected to the rack and pinion drive and is used to control the work platform (200) to move along the extension direction of the guide rail (110).