Safety foot stool for construction engineering construction

By using a servo motor to drive the shaft rotation and an electromagnetic locking mechanism, the toolbox can be automatically raised and lowered and stably supported, solving the problems of inconvenience in picking up and putting down tools and instability in movement of existing tripods, thus improving construction safety and convenience.

CN224314542UActive Publication Date: 2026-06-02CHINA STATE CONSTR PORT ENG GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA STATE CONSTR PORT ENG GRP
Filing Date
2025-05-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing tripods have limited functionality, making it inconvenient for construction workers to access and place tools, posing safety hazards. Furthermore, they lack stable support points when moved, which affects construction operations.

Method used

The rotating shaft system, driven by a servo motor, raises and lowers the movable crossbar and toolbox. Combined with an electromagnetic locking mechanism and a telescopic rod, it provides stable support and convenient tool access.

Benefits of technology

It improves the safety and convenience of construction workers on scaffolding, reduces large movements, and enhances stability and support convenience during movement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of construction equipment, specifically a safety scaffold for construction engineering. It includes a work platform and a support rod for supporting the work platform. A rotating shaft is located below the work platform, parallel to the platform, and connected to a servo motor for driving its rotation. A movable crossbar is located below the shaft, with its two ends fixedly connected to the shaft via a left and right vertical rod, respectively. A support shaft is fixedly connected between the left and right vertical rods, and a toolbox is mounted on the support shaft. A groove is provided on the side of the work platform to accommodate either the left or right vertical rod, and a locking mechanism is provided within the groove to secure it. This safety scaffold can lift the toolbox onto the work platform, eliminating the need for personnel to squat or perform other large movements when retrieving tools. The raised support shaft and movable crossbar provide two positions for workers to lean on and hold onto, improving the safety and convenience of construction operations.
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Description

Technical Field

[0001] This utility model relates to the technical field of construction equipment, specifically a safety scaffold for construction engineering. Background Technology

[0002] Scaffolding, also known as scaffolding, refers to various supports erected on construction sites to facilitate worker operations and solve vertical and horizontal transportation issues. While scaffolding provides convenience for construction, existing scaffolding has a relatively limited function. Furthermore, it hinders convenient tool access while working on scaffolding, requiring workers to squat on it to pass tools or materials manually, posing a safety hazard. Additionally, the lack of stable support points when moving on scaffolding affects construction operations. Chinese Patent 2024215925165 discloses "A Scaffold for Construction," authorized by publication number CN222782354U. This scaffolding includes four support legs arranged in a rectangular array. A support plate is fixed to the upper end of each support leg. A diagonal brace is fixed to one side of each support leg, and a horizontal brace is fixed to the other side. Ladders are fixed to both ends of the support plate. A storage groove is provided on the side of each support leg, and a reinforcement structure is installed inside the storage groove. Its reinforcement structure can improve the support effect of the scaffolding, further supporting it and improving the safety of workers to a certain extent. However, its reinforcement structure occupies a lot of space, making installation and use inconvenient. In addition, the scaffolding still fails to improve the safety and convenience of construction workers passing tools or materials. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a safety scaffold for construction engineering, which makes it convenient for construction workers to pick up and put down tools and move their positions safely, thereby improving the safety and convenience of construction operations.

[0004] The technical solution adopted by this utility model to solve the technical problem is:

[0005] The present invention discloses a safety scaffold for construction engineering, comprising a working platform and a support rod for supporting the working platform. A rotating shaft is provided below the working platform, and the rotating shaft is parallel to the working platform. The rotating shaft is connected to a servo motor for driving the rotating shaft to rotate. A movable crossbar is provided below the rotating shaft, and the two ends of the movable crossbar are respectively fixedly connected to the rotating shaft via a left vertical bar and a right vertical bar. A support shaft is fixedly connected between the left vertical bar and the right vertical bar, and a toolbox is installed on the support shaft. The side of the working platform is provided with a groove for accommodating the left vertical bar or the right vertical bar, and a locking mechanism for locking the left vertical bar or the right vertical bar is provided in the groove.

[0006] With this solution, the toolbox is raised to a high position by a movable crossbar, allowing construction workers to easily access the tools and materials in the toolbox from the top of the scaffold. When taking or putting away tools, workers do not need to make large movements. At the same time, the raised support shaft and movable crossbar provide construction workers with two positions for leaning and holding on, which helps to improve the safety and convenience of construction operations.

[0007] Preferably, the working platform is a rectangular plate structure, and the four support rods are respectively set at the four corners of the working platform. The two ends of the rotating shaft are rotatably connected between two opposite support rods. A motor platform is fixedly connected to the side of one of the support rods on which the rotating shaft is mounted. The servo motor is mounted on the motor platform, and the output shaft of the servo motor is connected to the rotating shaft through a constantly meshing gear pair.

[0008] This solution utilizes a servo motor to drive the rotation of the shaft.

[0009] Preferably, the locking mechanism is an electromagnetic lock embedded in the sidewall of the groove.

[0010] This solution allows the raised movable crossbar to be locked in a high position, improving equipment safety.

[0011] Preferably, a horizontally arranged mounting plate is fixedly connected to the lower end of the support rod, and a movable wheel and a telescopic rod are installed under the mounting plate. A fixing pad is connected to the lower end of the telescopic rod.

[0012] This solution facilitates the movement of the scaffolding while ensuring the stability of each support rod during construction.

[0013] Preferably, the telescopic rod includes an internally threaded sleeve that is longitudinally disposed through the mounting plate and fixedly connected to the mounting plate, a screw rod that is installed in the internally threaded sleeve by a threaded engagement, and a fixing pad that is fixedly connected to the lower end of the screw rod.

[0014] With this solution, the height of the fixing pad at the lower end of the telescopic pole can be adjusted, taking into account both the flexibility during movement and the stability requirements during construction.

[0015] Thanks to the aforementioned structure, the safety tripod can automatically deliver the toolbox to the work platform, allowing construction workers to easily access the tools and materials in the toolbox from the top of the tripod. When taking or placing tools, workers do not need to squat or perform other large movements. At the same time, the raised support shaft and movable crossbar provide construction workers with two positions for leaning and holding on, which helps to improve the safety and convenience of construction operations. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of one embodiment of the present invention.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the movable crossbar in the embodiment when it is raised.

[0018] Figure 3 This is a top-view structural diagram of the work platform. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 , Figure 2 As shown, the safety scaffold for construction engineering of this utility model includes a rectangular plate-shaped working platform 1 and support rods 3 for supporting the working platform 1. Four support rods 3 are respectively arranged at the four corners of the working platform 1. A reinforcing rod 9 is fixedly connected between two support rods 3 on the same side to enhance the structural stability of the lower end of the support rod 3. A rotating shaft 203 is arranged below the working platform 1, parallel to the working platform 1. The two ends of the rotating shaft 203 are rotatably connected between two opposing support rods. Figure 1 In this embodiment, a bearing housing is fixedly installed on the side of the support rod 3, and a bearing is installed in the bearing housing. The end of the rotating shaft 203 is installed in the bearing. In addition, a motor platform 4 is fixedly connected to the side of one of the support rods that mounts the rotating shaft 203. The motor platform 4 is a platform for mounting and fixing the servo motor 201. The servo motor 201 is mounted on the motor platform 4, and the rotating shaft 203 is driven by the servo motor 201. The servo motor 201 is used to drive the rotating shaft 203 to rotate. Figure 1 In this embodiment, a mounting hole is provided on the support rod 3 next to the servo motor 201. A bearing is embedded in the mounting hole. The output shaft of the servo motor 201 is installed in the bearing and extends through the mounting hole on the support rod 3 to the bottom of the rotating shaft 203. A drive gear is fixedly installed at the end of the output shaft of the servo motor 201, and a driven gear is installed on the rotating shaft 203. The drive gear and the driven gear are constantly meshed, so that the output shaft of the servo motor 201 is connected to the rotating shaft 203 through the constantly meshed gear pair, thereby driving the rotating shaft 203 to rotate.

[0021] Of course, as other embodiments of this utility model, the servo motor 201 can also use other transmission connection methods to drive the rotating shaft 203 to rotate, such as belt drive, worm gear drive, etc.

[0022] like Figure 1 , Figure 2 As shown, a movable crossbar 205 is provided below the rotating shaft 203. The two ends of the movable crossbar 205 are fixedly connected to the rotating shaft 203 through a left vertical bar 215 and a right vertical bar 225, respectively, forming a stable planar frame structure. When the rotating shaft 203 rotates, it drives the movable crossbar 205 to rotate around the central axis of the rotating shaft 203. The movable crossbar 205 can be moved above the rotating shaft 203 by rotating the rotating shaft 203 by 180 degrees.

[0023] Additionally, a support shaft 206 is fixedly connected between the left vertical rod 215 and the right vertical rod 225, and a toolbox 207 is mounted on the support shaft 206. The toolbox 207 is a rectangular box with through holes at the upper ends of both side plates. The support shaft 206 is rotatably inserted into the through holes, allowing the toolbox 207 to be suspended on the support shaft 206, and ensuring that the bottom of the toolbox 207 always faces downwards regardless of how the support shaft 206 rotates. For ease of use, the toolbox 207 has an openable lid at the top.

[0024] like Figure 1 , Figure 3 As shown, the side of the working platform 1 is provided with a groove 10 for accommodating the left vertical rod 215 or the right vertical rod 225, such as... Figure 2 As shown, when the pivot 203 rotates 180 degrees and the movable crossbar 205 flips to the top, the left vertical bar 215 and right vertical bar 225 on both sides of the movable crossbar 205 fit precisely into the corresponding grooves 10. The sidewalls of the grooves 10 provide support and limit for the left vertical bar 215 and right vertical bar 225. Additionally, the grooves 10 are equipped with a locking mechanism 11 for locking the left vertical bar 215 or right vertical bar 225. This locking mechanism 11 can lock the left vertical bar 215 and right vertical bar 225, preventing them from springing back. The locking mechanism is an electromagnetic lock embedded in the sidewalls of the grooves 10. Electromagnetic locks utilize electromagnetic force. When current passes through the silicon steel sheet, the electromagnetic lock generates a strong attraction force, tightly adhering to the adsorption iron plate to achieve a locking effect. After the power is cut off, the electromagnetic lock loses its attraction force and can be opened. There are various common types of electromagnetic locks, such as... Figure 3 In this embodiment, the electromagnetic force drives the latch 12 to extend and retract. A keyhole adapted to the latch 12 is provided at the corresponding position of the left vertical rod 215 or the right vertical rod 225. When the left vertical rod 215 or the right vertical rod 225 is engaged in the groove 10, the latch 12 extends and inserts into the keyhole, locking the left vertical rod 215 or the right vertical rod 225. To unlock, the electromagnetic lock simply retracts the latch 12. Of course, as another embodiment of this utility model, the locking mechanism 11 can also adopt other forms of electromagnetic locks. The structure and working principle of the electromagnetic lock are well-known technologies and will not be repeated here.

[0025] Finally, to facilitate movement on the construction site while ensuring stability and safety during construction, a horizontally mounted mounting plate 5 is fixedly connected to the lower end of the support rod 3. Moving wheels 6 and a telescopic rod 7 are mounted under the mounting plate 5, and a fixed pad 8 is connected to the lower end of the telescopic rod 7. During movement, the telescopic rod 7 can raise the fixed pad 8 off the ground, allowing the moving wheels 6 to directly contact the ground for easy repositioning. Upon reaching the construction position, the telescopic rod 7 lowers the fixed pad 8, ensuring it is in close contact with the ground, increasing friction and improving the stability of the scaffold.

[0026] In one embodiment of this utility model, the telescopic rod 7 includes an internally threaded sleeve 71 that is longitudinally disposed through and fixedly connected to the mounting plate 5, and a screw 72 that is threadedly installed inside the internally threaded sleeve 71. A fixing block 8 is fixedly connected to the lower end of the screw 72. Rotating the fixing block 8 and the screw 72 allows the rod to move up or down within the internally threaded sleeve 71, thus raising or lowering the fixing block 8. Of course, the telescopic rod 7 can also employ other telescopic structures, such as hydraulic cylinders or pneumatic cylinders.

[0027] like Figure 1 , Figure 2 As shown, during use, first adjust the telescopic rod 7 so that the fixing pad 8 rests on the bottom surface, preventing the entire device from moving easily. The worker stands on the work platform 1 to perform operations. When a tool is needed, it can be placed into the tool box 207 by the worker below. Then, the servo motor 201 is turned on, driving the rotating shaft 203 to rotate. As the rotating shaft 203 rotates, the movable frame 205 gradually rises. When the rotating shaft 203 rotates 180 degrees, the left vertical rod 215 and right vertical rod 225 at both ends of the movable frame 205 engage with the groove 10. At this time, the locking mechanism 11 is energized, locking the movable frame 205. The worker can then open the toolbox 207 from above the tripod and retrieve the tools for use. A pull ring 15 is installed on the movable frame 205 at its highest point for easy handholding. The worker can hold onto the pull ring 15 to maintain balance when moving on the work platform 1. The support shaft 206 of the toolbox 207 is located at a relatively low position, blocking the waist of the construction worker. It can serve as a support and leaning point for the person when picking up and putting down tools, and it can also serve as a safety railing during construction, thereby improving the safety of construction operations.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety scaffold for construction engineering, comprising a working platform (1) and a support rod (3) for supporting the working platform (1), characterized in that: A rotating shaft (203) is provided below the work platform (1). The rotating shaft (203) is parallel to the work platform (1). The rotating shaft (203) is connected to a servo motor (201) for transmission. The servo motor (201) is used to drive the rotating shaft (203) to rotate. A movable crossbar (205) is provided below the rotating shaft (203). The two ends of the movable crossbar (205) are fixedly connected to the rotating shaft (203) through a left vertical bar (215) and a right vertical bar (225) respectively. A support shaft (206) is fixedly connected between the left vertical bar (215) and the right vertical bar (225). A toolbox (207) is installed on the support shaft (206). A groove (10) is provided on the side of the work platform (1) for accommodating the left vertical bar (215) or the right vertical bar (225). A locking mechanism for locking the left vertical bar (215) or the right vertical bar (225) is provided in the groove (10).

2. The safety scaffold for construction engineering according to claim 1, characterized in that: The working platform (1) is a rectangular plate structure. The four support rods (3) are respectively set at the four corners of the working platform (1). The two ends of the rotating shaft (203) are rotatably connected between the two opposite support rods. A motor platform (4) is fixedly connected to the side of one of the support rods on which the rotating shaft (203) is installed. The servo motor (201) is installed on the motor platform (4). The output shaft of the servo motor (201) is connected to the rotating shaft (203) through a constantly meshing gear pair.

3. The safety scaffold for construction engineering according to claim 1 or 2, characterized in that: The locking mechanism is an electromagnetic lock embedded in the side wall of the groove (10).

4. A safety scaffold for construction engineering according to claim 1 or 2, characterized in that: The lower end of the support rod (3) is fixedly connected to a horizontally arranged mounting plate (5), and a movable wheel (6) and a telescopic rod (7) are installed under the mounting plate (5). The lower end of the telescopic rod (7) is connected to a fixing pad (8).

5. The safety scaffold for construction engineering according to claim 4, characterized in that: The telescopic rod (7) includes an internally threaded sleeve (71) that is longitudinally arranged through the mounting plate (5) and fixedly connected to the mounting plate (5), a screw (72) that is installed in the internally threaded sleeve (71) by threaded engagement, and a fixing pad (8) that is fixedly connected to the lower end of the screw (72).