Safe scaffold with liftable platform

Abstract

The utility model discloses a safety type scaffold with a liftable platform, which comprises a bearing platform, the bearing platform is positioned in a support frame, the inner surface of the support frame is provided with a safety component and a lifting component, and the lower surface of the support frame is provided with a moving component; the safety assembly comprises a positioning plate and a rotating disc, the side wall of the positioning plate is fixedly connected with the inner surface of the supporting frame, a plurality of positioning blocks are fixedly installed on the other side wall of the positioning plate at intervals, a torsion spring and a connecting column are fixedly installed on the upper surface of the rotating disc, and one end of the torsion spring is fixedly connected with the lower surface of the bearing platform. And a limiting plate is rotationally installed on the lower surface of the rotating disc through a rotating shaft, a limiting groove is fixedly formed in the lower surface of the bearing platform, and one end of the limiting plate penetrates through the limiting groove in a sliding mode and is attached to the other side wall of the positioning plate. And the safety assembly is arranged, so that the condition that the platform drops suddenly is avoided, and the safety of the scaffold is improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a safe scaffold with a liftable platform. Background Technology

[0002] Scaffolding is a working platform erected to ensure the smooth progress of various construction processes. It can be divided into external scaffolding and internal scaffolding according to its location; and into wooden scaffolding, bamboo scaffolding, steel pipe scaffolding, etc. according to different materials.

[0003] Chinese patent discloses a scaffolding (CN220080713U) comprising a support mechanism including two side frames and diagonal strips intersecting on both sides, which are assembled and fixed by bolts; and a foot pedal mechanism including a base plate and hooks. The hooks are connected to the four corners of the base plate and attached to the tops of the two side frames. Movable grooves are provided on both sides of the top of the base plate, and I-shaped blocks are slidably installed in the grooves. Elastic bands are connected to the I-shaped blocks, and safety buckles are connected to the ends of the elastic bands for fastening to workers' clothing. This invention uses a stretchable elastic band design, combined with safety buckles to limit the movement of buckles on workers' clothing, thus providing additional restraint in case of a fall. Compared with existing technologies, this device can increase the protection of workers, making them less likely to suffer accidental fall injuries. Some scaffolding platforms are raised and lowered electrically. If a malfunction occurs, the platform may drop suddenly, which could easily cause a major accident. This reflects the low safety of current scaffolding and its poor protection of construction workers. Therefore, this utility model provides a safe scaffolding with a liftable platform. Utility Model Content

[0004] To address the technical problem that current scaffolding may experience a sudden drop in the load-bearing platform due to malfunctions, this utility model provides a safe scaffolding with a liftable platform.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a safe scaffold with a liftable platform, comprising a support frame and a load-bearing platform, wherein the load-bearing platform is located inside the support frame, and threaded plates are fixedly installed on both side walls of the load-bearing platform; a safety component and a lifting component are provided on the inner surface of the support frame; and a moving component is provided on the lower surface of the support frame.

[0006] The safety assembly includes a positioning plate and a rotating disk. The side wall of the positioning plate is fixedly connected to the inner surface of the support frame. Multiple positioning blocks are fixedly installed at intervals on the other side wall of the positioning plate. A torsion spring and a connecting column are fixedly installed on the upper surface of the rotating disk. One end of the torsion spring is fixedly connected to the lower surface of the bearing platform. One end of the connecting column extends to the upper surface of the bearing platform and a rotating disk is fixedly installed thereon. A groove is provided on the upper surface of the bearing platform, and the size of the groove is adapted to the rotating disk.

[0007] A limiting plate is rotatably mounted on the lower surface of the rotating disk via a rotating shaft, and a limiting groove is fixedly mounted on the lower surface of the bearing platform. One end of the limiting plate passes through the interior of the limiting groove and fits against the other side wall of the positioning plate. The outer surface of the limiting plate is slidably connected to the inner wall of the limiting groove.

[0008] Furthermore, one end of the limiting plate and the lower surface of the positioning block are both set as inclined surfaces.

[0009] Furthermore, the lifting assembly includes a fixed box, with both ends of the fixed box fixedly connected to the inner walls of both sides of the support frame. A mounting cover is fixedly installed on the lower surface of the fixed box, and a drive motor is fixedly installed on the inner wall of the bottom surface of the mounting cover. A driving threaded column and a driven threaded column are rotatably installed on the inner wall of the bottom surface of the fixed box. A toothed sprocket is fixedly installed on the outer surface of both the driving threaded column and the driven threaded column, and the toothed sprockets are connected to each other through a toothed chain drive. A fixed plate is rotatably installed at one end of both the driving threaded column and the driven threaded column. The side wall of the fixed plate is fixedly connected to the inner surface of the support frame, and the other end of the driving threaded column is fixedly connected to the output end of the drive motor. The outer surfaces of the driving threaded column and the driven threaded column are threadedly connected to the inner walls of the two threaded plates, respectively.

[0010] Furthermore, the movable component includes a support leg, the upper surface of which is fixedly connected to the lower surface of the support frame. The lower surface of the support leg is provided with a groove, and a connecting spring is fixedly installed on the inner wall of the top surface of the groove. A mounting bracket is fixedly installed at one end of the connecting spring. A roller is rotatably installed on the inner wall of the mounting bracket via a rotating shaft. A limit hole is provided on the side wall of the mounting bracket. A positioning spring is installed in the groove on the inner side wall of the support leg. A fixing ring is fixedly installed at one end of the positioning spring. A positioning pin is fixedly installed on the inner wall of the fixing ring. One end of the positioning pin is adapted to the size of the limit hole, and the other end of the positioning pin extends to the outside of the support leg.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting a safety component, when the carrying platform moves to the appropriate position, the upper surface of the positioning block will limit the plate to provide support. When the carrying platform needs to be lowered, the rotating disc is rotated. At this time, under the action of the connecting column, the rotating disc is driven to rotate. At this time, the limit plate retracts towards the lower surface of the carrying platform in the limit groove. While realizing the lifting function of the scaffolding platform, it also provides a safety effect for the platform, further improving the stability of the platform during lifting and after raising, avoiding the platform from falling suddenly, improving the safety of the scaffolding, and improving the protection of construction personnel.

[0013] 2. In this utility model, by providing a movable component, when the mounting frame loses the fixation of the positioning pin, the weight of the support frame itself will compress the roller into the interior of the support leg. At this time, the support frame contacts the bottom surface through the support leg. When the carrying platform needs to be moved, simply lift the support frame, and the roller will automatically pop out under the action of the connecting spring. Then, under the action of the positioning spring, the fixing ring will drive the positioning pin to insert into the limiting hole, thereby fixing the roller through the mounting frame. When moving, the roller is used to move, improving the convenience and efficiency of scaffolding movement. When in use, the roller is retracted, and the scaffolding is supported by the support leg, increasing the contact area between the scaffolding and the ground, thereby improving the stability of the scaffolding during use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the lifting assembly of this utility model.

[0016] Figure 3 This is an exploded structural diagram of the insurance component and the support platform of this utility model.

[0017] Figure 4 This is an exploded structural diagram of the mobile component of this utility model.

[0018] In the diagram: 1. Support frame; 2. Bearing platform; 3. Lifting assembly; 31. Fixing box; 32. Mounting cover; 33. Drive motor; 34. Driving threaded column; 35. Toothed sprocket; 36. Fixing plate; 37. Driven threaded column; 4. Safety assembly; 41. Positioning plate; 42. Positioning block; 43. Torsion spring; 44. Rotating disk; 45. Connecting column; 46. Twisting disk; 47. Limiting plate; 48. Limiting groove; 5. Moving assembly; 51. Support leg; 52. Connecting spring; 53. Mounting bracket; 54. Roller; 55. Positioning spring; 56. Fixing ring; 57. Positioning pin; 6. Threaded plate. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This embodiment provides a safe scaffold with a liftable platform, including a support frame 1 and a load-bearing platform 2. The load-bearing platform 2 is located inside the support frame 1. Threaded plates 6 are fixedly installed on both side walls of the load-bearing platform 2. A safety component 4 and a lifting component 3 are provided on the inner surface of the support frame 1, and a moving component 5 is provided on the lower surface of the support frame 1.

[0021] The safety component 4 includes a positioning plate 41 and a rotating disk 44. The side wall of the positioning plate 41 is fixedly connected to the inner surface of the support frame 1. Multiple positioning blocks 42 are fixedly installed at intervals on the other side wall of the positioning plate 41. A torsion spring 43 and a connecting column 45 are fixedly installed on the upper surface of the rotating disk 44. One end of the torsion spring 43 is fixedly connected to the lower surface of the bearing platform 2. One end of the connecting column 45 extends to the upper surface of the bearing platform 2 and a rotating disk 46 is fixedly installed thereon. A groove is provided on the upper surface of the bearing platform 2. The groove is adapted to the size of the rotating disk 46. A limit plate 47 is rotatably installed on the lower surface of the rotating disk 44 via a rotating shaft. A limit groove 48 is fixedly installed on the lower surface of the bearing platform 2. One end of the limit plate 47 passes through the interior of the limit groove 48 and fits against the other side wall of the positioning plate 41. Both the lower surface of the limit plate 47 and the positioning block 42 are set as inclined surfaces. The outer surface of the limit plate 47 is slidably connected to the inner wall of the limit groove 48.

[0022] When the carrying platform 2 moves upward, since one end of the limiting plate 47 and the lower surface of the positioning block 42 are both set as inclined surfaces, they will not hinder the upward movement of the carrying platform 2. When the carrying platform 2 moves to the appropriate position, the upper surface of the positioning block 42 will support the limiting plate 47. When the carrying platform 2 needs to be lowered, the rotating disc 46 is rotated. At this time, the rotating disc 44 is driven to rotate under the action of the connecting column 45. At this time, the limiting plate 47 retracts towards the lower surface of the carrying platform 2 in the limiting groove 48. When the positioning block 42 no longer obstructs the limiting plate 47, it moves downward under the action of the active threaded column 34 and the driven threaded column 37.

[0023] The lifting assembly 3 includes a fixed box 31. The two ends of the fixed box 31 are fixedly connected to the inner walls of the two sides of the support frame 1, respectively. A mounting cover 32 is fixedly installed on the lower surface of the fixed box 31. A drive motor 33 is fixedly installed on the inner wall of the bottom surface of the mounting cover 32. An active threaded column 34 and a driven threaded column 37 are rotatably installed on the inner wall of the bottom surface of the fixed box 31. A toothed sprocket 35 is fixedly installed on the outer surface of both the active threaded column 34 and the driven threaded column 37. The toothed sprockets 35 are connected to each other by a toothed chain drive. A fixed plate 36 is rotatably installed on one end of both the active threaded column 34 and the driven threaded column 37. The side wall of the fixed plate 36 is fixedly connected to the inner surface of the support frame 1. The other end of the active threaded column 34 is fixedly connected to the output end of the drive motor 33. The outer surfaces of the active threaded column 34 and the driven threaded column 37 are threadedly connected to the inner walls of the two threaded plates 6, respectively.

[0024] The drive motor 33 inside the mounting cover 32 drives the active threaded column 34 to rotate. Under the action of the toothed sprocket 35 and the toothed chain, it drives the driven threaded column 37 to rotate synchronously. As the active threaded column 34 and the driven threaded column 37 rotate, the threaded plate 6 drives the bearing platform 2 to move up and down inside the support frame 1 under the action of the thread.

[0025] The movable component 5 includes a support leg 51, the upper surface of which is fixedly connected to the lower surface of the support frame 1. The lower surface of the support leg 51 is provided with a groove, and a connecting spring 52 is fixedly installed on the inner wall of the top surface of the groove. A mounting bracket 53 is fixedly installed on one end of the connecting spring 52. A roller 54 is rotatably installed on the inner wall of the mounting bracket 53 via a rotating shaft. A limit hole is provided on the side wall of the mounting bracket 53. A positioning spring 55 is installed in the groove on the inner side wall of the support leg 51. A fixing ring 56 is fixedly installed on one end of the positioning spring 55. A positioning pin 57 is fixedly installed on the inner wall of the fixing ring 56. One end of the positioning pin 57 is adapted to the size of the limit hole, and the other end of the positioning pin 57 extends to the outside of the support leg 51.

[0026] Under the action of the roller 54, the support frame 1 is moved to the appropriate position, and then the positioning pin 57 is pulled to the outside of the support leg 51. When one end of the positioning pin 57 is pulled out of the limiting hole, the mounting bracket 53 loses the fixation of the positioning pin 57. Under the weight of the support frame 1 itself, the roller 54 will be compressed into the inside of the support leg 51. At this time, the support frame 1 contacts the bottom surface through the support leg 51. When the bearing platform 2 needs to be moved, the support frame 1 only needs to be lifted. Under the action of the connecting spring 52, the roller 54 will automatically pop out. Then, under the action of the positioning spring 55, the fixing ring 56 will drive the positioning pin 57 to insert into the limiting hole, thereby fixing the roller 54 through the mounting bracket 53.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safe scaffold with a liftable platform, comprising a support frame (1) and a load-bearing platform (2), characterized in that: The bearing platform (2) is located inside the support frame (1). Threaded plates (6) are fixedly installed on both sides of the bearing platform (2). The inner surface of the support frame (1) is provided with a safety component (4) and a lifting component (3). The lower surface of the support frame (1) is provided with a moving component (5). The safety component (4) includes a positioning plate (41) and a rotating disk (44). The side wall of the positioning plate (41) is fixedly connected to the inner surface of the support frame (1). Multiple positioning blocks (42) are fixedly installed at intervals on the other side wall of the positioning plate (41). A torsion spring (43) and a connecting column (45) are fixedly installed on the upper surface of the rotating disk (44). One end of the torsion spring (43) is fixedly connected to the lower surface of the bearing platform (2). One end of the connecting column (45) extends to the upper surface of the bearing platform (2) and a rotating disk (46) is fixedly installed. A groove is provided on the upper surface of the bearing platform (2), and the size of the groove is adapted to the rotating disk (46). The lower surface of the rotating disk (44) is rotatably mounted with a limiting plate (47) via a rotating shaft, and the lower surface of the bearing platform (2) is fixedly mounted with a limiting groove (48). One end of the limiting plate (47) passes through the interior of the limiting groove (48) and is attached to the other side wall of the positioning plate (41). The outer surface of the limiting plate (47) is slidably connected to the inner wall of the limiting groove (48).

2. The safety-type scaffolding with a liftable platform according to claim 1, characterized in that, One end of the limiting plate (47) and the lower surface of the positioning block (42) are both set as inclined surfaces.

3. A safe scaffold with a liftable platform according to claim 1, characterized in that, The lifting assembly (3) includes a fixed box (31), the two ends of which are fixedly connected to the inner walls of the two sides of the support frame (1). A mounting cover (32) is fixedly installed on the lower surface of the fixed box (31). A drive motor (33) is fixedly installed on the inner wall of the bottom surface of the mounting cover (32). An active threaded column (34) and a driven threaded column (37) are rotatably installed on the inner wall of the bottom surface of the fixed box (31). The outer surfaces of the active threaded column (34) and the driven threaded column (37) are both fixed. The toothed sprockets (35) are installed and connected by toothed chain drive. One end of the driving threaded column (34) and the driven threaded column (37) are rotatably mounted with a fixing plate (36). The side wall of the fixing plate (36) is fixedly connected to the inner surface of the support frame (1). The other end of the driving threaded column (34) is fixedly connected to the output end of the drive motor (33). The outer surfaces of the driving threaded column (34) and the driven threaded column (37) are respectively threaded to the inner walls of the two threaded plates (6).

4. A safety-type scaffolding with a liftable platform according to any one of claims 1 to 3, characterized in that, The movable component (5) includes a support leg (51), the upper surface of which is fixedly connected to the lower surface of the support frame (1). The lower surface of the support leg (51) is provided with a groove, and a connecting spring (52) is fixedly installed on the inner wall of the top surface of the groove. A mounting bracket (53) is fixedly installed at one end of the connecting spring (52). A roller (54) is rotatably installed on the inner wall of the mounting bracket (53) via a rotating shaft. A limit hole is provided on the side wall of the mounting bracket (53). A positioning spring (55) is installed in the groove on the inner side wall of the support leg (51). A fixing ring (56) is fixedly installed at one end of the positioning spring (55). A positioning pin (57) is fixedly installed on the inner wall of the fixing ring (56). One end of the positioning pin (57) is adapted to the size of the limit hole, and the other end of the positioning pin (57) extends to the outside of the support leg (51).

Images