Steel structure scaffold

Abstract

The utility model discloses a steel structure scaffold which comprises four hollow supporting legs, and a working platform is fixed to the tops of the four supporting legs. The bottoms of the four supporting legs are rotationally connected with a barrel-shaped supporting disc, telescopic through holes communicated with the supporting legs are formed in the supporting disc, telescopic trundle mechanisms are arranged in the telescopic through holes, and the telescopic trundle mechanisms can slide up and down at the bottoms of the supporting legs; when the bottom of the supporting disc is flush with the lowest position of the telescopic trundle mechanism, the supporting disc covers the bottom of the telescopic trundle mechanism. The bottom of the supporting leg is provided with the supporting disc capable of being telescopically switched, the supporting area of the supporting disc is large, the supporting effect can be better achieved, the steel structure scaffold has better stability, meanwhile, compared with a trundle with a brake, the supporting disc does not slide, and therefore the steel structure scaffold has more excellent stability, and the service life of the steel structure scaffold is prolonged. And the safety of operators is ensured.

Description

Technical Field

[0001] This utility model relates to the field of construction and decoration equipment, specifically to a steel structure scaffolding. Background Technology

[0002] In construction and decoration processes, moving scaffolding is essential. Existing scaffolding typically uses casters with brakes for sliding. The scaffolding is moved to the work position via the casters, and then the casters are locked, preventing further sliding and thus stopping the scaffolding. While this type of scaffolding is convenient to move, when the casters are locked and there is significant wobbling, although the casters cannot roll, they can still slide slightly relative to the ground, as shown in a steel structure scaffolding disclosed in patent document CN115045489A. Furthermore, if the brakes malfunction, the casters cannot be secured, and the scaffolding may continue to move, leading to instability and posing certain safety hazards. Therefore, it is necessary to propose a steel structure scaffolding that is easy to move and offers better stability. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, this utility model provides a steel structure scaffolding.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: it includes four hollow support legs, with a working platform fixed to the top of each support leg; a barrel-shaped support plate is rotatably connected to the bottom of each support leg, and the support plate is provided with a telescopic through hole communicating with the support leg, and a telescopic caster mechanism is provided in the telescopic through hole, which can slide up and down at the bottom of the support leg; when the bottom of the support plate is flush with the lowest point of the telescopic caster mechanism, the support plate covers the bottom of the telescopic caster mechanism.

[0005] Furthermore, the retractable caster mechanism includes a caster, a guide shaft, and a return spring. The top of the caster is fixedly connected to the guide shaft, the guide shaft is slidably mounted on the bottom of the support leg, the top of the first support leg is fixedly connected to the return spring, and a spring limiting plate that mates with the top of the return spring is fixed inside the support leg. A horizontal limiting shaft is fixed on the guide shaft, a slotted hole that mates with the horizontal limiting shaft is provided on the support leg, and a locking element that mates with the horizontal limiting shaft is provided on the support leg.

[0006] Furthermore, the locking fastener includes a locking hook and a hook rotating pin. The locking hook is provided with a through hole that mates with the hook rotating pin. The locking hook is rotatably mounted on the support leg via the hook rotating pin. The locking hook is provided with a hook part that mates with the horizontal limiting shaft.

[0007] Furthermore, when the return spring is in its normal state, the support plate extends from the bottom of the caster.

[0008] Furthermore, the support legs include a first support leg, a second support leg, a third support leg, and a fourth support leg; several climbing poles are fixed between the first support leg and the second support leg, and between the third support leg and the fourth support leg, and the climbing poles are parallel to each other.

[0009] Furthermore, X-shaped reinforcing beams are provided between the second and third support legs, and between the first and fourth support legs.

[0010] Furthermore, the work platform includes a U-shaped work frame and hand and foot plates. The U-shaped work frame is fixedly connected to several support legs, and the hand and foot plates are fixed on the U-shaped work frame.

[0011] Furthermore, the exterior of the four supporting legs is coated with paint.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model.

[0014] This utility model features a support plate at the bottom of its support leg, within which is a retractable and height-adjustable caster mechanism. In normal operation, the casters of the retractable caster mechanism extend from the bottom of the support plate under the action of return springs, with the four casters working together to move the steel structure scaffold. During operation, after moving the steel structure scaffold to the working position, pressing down on a single support plate compresses the caster's return spring, causing it to retract into the lowered support plate. Then, locking the horizontal limit shaft on the guide shaft with a locking hook secures the caster back into the support plate. This process is repeated for each retractable caster mechanism, allowing the bottom of the steel structure scaffold to be supported by a larger support plate, resulting in better bottom stability and a safer working environment.

[0015] The support leg of this utility model is equipped with a retractable and switchable support plate at its bottom. The support plate has a large support area, which can better provide support and make the steel structure scaffolding more stable. At the same time, compared with casters with brakes, the support plate will not slip, thus having superior stability and ensuring the safety of workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the retractable caster mechanism;

[0018] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0019] The symbols for each component are as follows:

[0020] 11. First support leg; 111. Slot hole; 12. Second support leg; 13. Third support leg; 14. Fourth support leg; 15. Support plate; 16. Climbing pole; 17. X-shaped reinforcing beam;

[0021] 2. Working platform; 21. U-shaped working frame; 3. Casters; 4. Guide shaft; 5. Horizontal limit shaft; 6. Return spring; 7. Spring limit plate; 8. Locking hook; 9. Hook rotating pin. Detailed Implementation

[0022] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0023] like Figure 1 As shown, the steel structure scaffolding includes four hollow support legs. A working platform 2 is fixed to the top of each support leg. The working platform 2 includes a U-shaped working frame 21 and handboards. The U-shaped working frame 21 is fixedly connected to several support legs, and the handboards are fixed to the U-shaped working frame 21. The support legs include a first support leg 11, a second support leg 12, a third support leg 13, and a fourth support leg 14. Several climbing poles 16 are fixed between the first support leg 11 and the second support leg 12, and between the third support leg 13 and the fourth support leg 14. The climbing poles 16 are parallel to each other, and the distance between adjacent climbing poles 16 is equal. A paint layer is applied to the exterior of the four support legs and the exterior of the climbing poles 16 to improve the corrosion resistance of the steel structure scaffolding.

[0024] X-shaped reinforcing beams 17 are provided between the second support leg 12 and the third support leg 13, and between the first support leg 11 and the fourth support leg 14. The X-shaped reinforcing beams 17 can further improve the structural strength between the second support leg 12 and the third support leg 13, and between the first support leg 11 and the fourth support leg 14.

[0025] A barrel-shaped support plate 15 is fixedly connected to the bottom of each of the four support legs. The support plate 15 has telescopic through holes communicating with the support legs, and a telescopic caster mechanism is installed within these through holes. The telescopic caster mechanism can slide up and down at the bottom of the support legs. When the bottom of the support plate 15 is flush with the lowest point of the telescopic caster mechanism, the support plate 15 covers the bottom of the telescopic caster mechanism. The support plate 15 has a large support area, providing better support and enhancing the stability of the steel structure scaffolding. Furthermore, compared to casters with brakes, the support plate 15 does not slip, thus offering superior stability and ensuring the safety of workers.

[0026] like Figure 2 As shown, the telescopic caster mechanism includes a caster 3, a guide shaft 4, and a return spring 6. The top of the caster 3 is rotatably connected to the guide shaft 4, which is slidably mounted on the bottom of the support leg. The top of the first support leg 11 is fixedly connected to the return spring 6, and a spring-limiting partition 7 that mates with the top of the return spring 6 is fixed inside the support leg. A horizontal limiting shaft 5 is fixed on the guide shaft 4, and the support leg has a slot 111 that mates with the horizontal limiting shaft 5. A locking fastener that mates with the horizontal limiting shaft 5 is also provided on the support leg. The caster 3 is slidably mounted in the telescopic through-hole and the support leg via the guide shaft 4. The top of the caster 3 is rotatably connected to the guide shaft 4, allowing the caster 3 to move in any direction, thus facilitating the movement of the steel structure scaffold. The caster 3 can also be a caster with brakes or a support foot. The casters 3 in the figure are for illustrative purposes only. In real life, the installation methods of casters 3 include fixed, swivel, and screw rod. The fixed method means that the caster cannot rotate and can only move forward or backward. The swivel method allows the caster to rotate 360 ​​degrees, providing all-round movement capability. The connection between the caster 3 and the guide shaft 4 can also adopt the aforementioned three methods.

[0027] like Figure 3 As shown, the locking fastener includes a locking hook 8 and a hook rotating pin 9. The locking hook 8 is provided with a through hole that cooperates with the hook rotating pin 9. The locking hook 8 is rotatably mounted on the support leg 1 through the hook rotating pin 9. The locking hook 8 is provided with a hook part that cooperates with the horizontal limiting shaft 5.

[0028] Working process and principle: When the return spring 6 is in its normal state, under the overall gravity of the steel structure scaffold, the bottom of the four casters 3 protrudes from the bottom of the support plate 15, thus enabling the steel structure scaffold to move. When the steel structure scaffold moves to the required position, the support plate 15 is pressed down sequentially to retract and fix the casters 3. Specifically, by pressing down on the support plate 15, the support plate 15 drives the support foot to press down, and the support foot compresses the return spring 6 through the spring limiting plate 7. The bottom of the caster 3 supports the ground, and the bottom of the support foot moves down. When the slot 111 at the bottom of the support foot moves down to the appropriate locking position, the horizontal limiting shaft 5 can be fastened by rotating the locking hook 8, thereby realizing the retraction and locking of the caster 3. Repeat the aforementioned operation to sequentially retract the retractable caster mechanisms on each support plate 15, thereby storing all four casters 3 within the support plate 15. The four support plates 15 then support the bottom of the supporting legs, achieving more stable support for the steel structure scaffolding. Compared to directly using the self-locking mechanism of casters for supporting the steel structure scaffolding, this invention provides a larger support area for the four support plates 15, offering better support and reducing the likelihood of horizontal movement, thus providing a safer working environment.

Claims

1. A steel structure scaffold, characterized in that, It includes four hollow support legs, and a work platform (2) is fixed to the top of each of the four support legs; The bottom of the four support legs is fixedly connected to a barrel-shaped support plate (15). The support plate (15) is provided with a telescopic through hole communicating with the support leg. A telescopic caster mechanism is provided in the telescopic through hole. The telescopic caster mechanism can slide up and down at the bottom of the support leg. When the bottom of the support plate (15) is flush with the lowest point of the retractable caster mechanism, the support plate (15) covers the bottom of the retractable caster mechanism.

2. The steel structure scaffolding according to claim 1, characterized in that, The retractable caster mechanism includes a caster (3), a guide shaft (4), and a return spring (6). The top of the caster (3) is rotatably connected to the guide shaft (4). The guide shaft (4) is slidably installed on the bottom of the support leg. The top of the first support leg (11) is fixedly connected to the return spring (6). A spring limiting plate (7) that cooperates with the top of the return spring (6) is fixed inside the support leg. A horizontal limiting shaft (5) is fixed on the guide shaft (4). A slot (111) that cooperates with the horizontal limiting shaft (5) is provided on the support leg. A locking element that cooperates with the horizontal limiting shaft (5) is provided on the support leg.

3. The steel structure scaffolding according to claim 2, characterized in that, The locking fastener includes a locking hook (8) and a hook rotating pin (9). The locking hook (8) is provided with a through hole that cooperates with the hook rotating pin (9). The locking hook (8) is rotatably mounted on the support leg (1) through the hook rotating pin (9). The locking hook (8) is provided with a hook part that cooperates with the horizontal limiting shaft (5).

4. The steel structure scaffolding according to claim 2, characterized in that, When the return spring (6) is in its normal state, the bottom of the caster (3) extends out of the support plate (15).

5. The steel structure scaffolding according to claim 1, characterized in that, The support legs include a first support leg (11), a second support leg (12), a third support leg (13) and a fourth support leg (14); a plurality of climbing poles (16) are fixed between the first support leg (11) and the second support leg (12), and between the third support leg (13) and the fourth support leg (14), and the plurality of climbing poles (16) are parallel to each other.

6. The steel structure scaffolding according to claim 5, characterized in that, An X-shaped reinforcing beam (17) is provided between the second support leg (12) and the third support leg (13), and between the first support leg (11) and the fourth support leg (14).

7. The steel structure scaffolding according to claim 1, characterized in that, The work platform (2) includes a U-shaped work frame (21) and hand and foot plates. The U-shaped work frame (21) is fixedly connected to several supporting legs, and the hand and foot plates are fixed on the U-shaped work frame (21).

8. The steel structure scaffolding according to claim 1, characterized in that, The exterior of the four supporting legs is coated with paint.

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