Stairway mobile device for working at height

Abstract

This utility model discloses a stair-type mobile device for working at heights, including an anti-slip standing board. Two diagonal rods are hinged to the outer wall of the anti-slip standing board, and multiple stair treads are fixedly connected between the two diagonal rods. A telescopic component is provided at the bottom of the anti-slip standing board, and an adjustment component is provided on the outer wall of the diagonal rods. In this utility model, the diagonal rods, adjustment rods, and anti-slip standing board form a stable triangular support to adapt to different working height requirements. The railings, fence netting, and double doors form a closed protective structure to prevent personnel from falling. The anti-slip standing board provides a stable standing surface that can withstand the reaction forces from drilling and cutting, reducing the risk of swaying. The diagonal rods, vertical rods, and railings can be quickly folded to reduce space occupation and facilitate transportation and storage. The use of bolt fastening and a telescopic structure facilitates quick adjustment and fixation, improving work efficiency. The stair treads are designed for easy climbing, and standing work is more comfortable than using a ladder, reducing the risk of fatigue.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude equipment technology, and in particular to a stair-type mobile device for high-altitude operations. Background Technology

[0002] High-altitude operations and maintenance are frequently required in building construction and industrial maintenance. These operations are characterized by high working heights, significant safety risks, and stringent technical requirements. They mainly include the following aspects: Building maintenance: maintenance of high-rise building facades, cleaning and repair of glass curtain walls, inspection of lightning protection devices, and construction of roof waterproofing layers. Industrial equipment maintenance: inspection and maintenance of tall equipment such as chemical plant reaction towers and storage tanks, and maintenance of blast furnaces and chimneys in the metallurgical industry.

[0003] In existing technologies, during traditional high-altitude operations and maintenance, workers typically use simple straight or inclined ladders as climbing tools. These ladders lack necessary safety railings and cannot provide effective fall protection. When workers perform tasks requiring significant force, such as drilling, cutting, or using an angle grinder, the ladder cannot provide a stable platform, making it difficult for workers to maintain their balance. This can easily lead to swaying or even tipping over. Traditional ladders fail to provide reliable support points, and when performing tasks requiring both hands, workers often struggle to maintain balance simultaneously, increasing the risk of falls. Therefore, we propose a staircase-style mobile device for high-altitude operations to address these problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a stair-type mobile device for working at heights.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stair-type mobile device for working at heights includes an anti-slip standing board. Two diagonal rods are hinged to the outer wall of the anti-slip standing board, and multiple stair treads are fixedly connected between the two diagonal rods. A telescopic component is provided at the bottom of the anti-slip standing board, and an adjustment component is provided on the outer wall of the diagonal rods. Multiple vertical sleeves are installed on the outer walls of both the anti-slip standing board and the two diagonal rods, and railings are slidably connected to the inner walls of the multiple vertical sleeves. Multiple circular sleeves are fixedly connected to the top of both the anti-slip standing board and the two diagonal rods, and cylinders are rotatably connected to the inner walls of the multiple circular sleeves. One end of each cylinder is fixedly connected to the outer wall of a vertical sleeve. A rectangular groove is formed on the outer wall of the cylinder, and a spring is fixedly connected to the inner wall of the rectangular groove. A rectangular column is fixedly connected to one end of the spring, and a pad is fixedly connected to one end of the rectangular column. A limit post is fixedly connected to the outer wall of the pad. An arc-shaped groove is formed on the outer wall of each circular sleeve, and the inner wall of the arc-shaped groove is slidably connected to the outer wall of the limit post.

[0007] Preferably, the telescopic assembly includes two vertical rods, the tops of which are hinged to the bottom of the anti-slip standing plate. Threaded rods are fixedly connected to the bottoms of the two vertical rods. An increasing rod is threaded onto the outer wall of each of the two threaded rods. A rectangular washer is threaded onto the outer wall of each of the two increasing rods. A connecting rod is rotatably connected to the outer wall of each increasing rod. Threaded holes are formed in both the connecting rod and the outer wall of the anti-slip standing plate. Fastening bolts are threaded onto the inner walls of the threaded holes. The height of the anti-slip standing plate can be adjusted by using the telescopic assembly.

[0008] Preferably, the adjustment assembly includes four adjustment rods. The outer walls of two inclined rods are rotatably connected to one end of each of the four adjustment rods. The outer walls of both the anti-slip standing plate and the two height-increasing rods have multiple threaded mating holes. The outer walls of the adjustment rods have through holes, and the inner walls of these through holes are threaded with locking bolts. By setting the adjustment assembly, the support angle of the two inclined rods on the anti-slip standing plate can be changed. The other ends of two adjustment rods are connected to the threaded mating holes on the anti-slip standing plate, and the other ends of the other two adjustment rods are connected to the threaded mating holes on the height-increasing rods. When the overall height of the device needs to be adjusted, this adjustment assembly can both adapt and adjust the angles of the inclined rods and the stair treads, and simultaneously use the four adjustment rods to stabilize the entire device, preventing tipping due to instability.

[0009] Preferably, the bottom of both the heightening rod and the diagonal rod are fixedly connected with self-locking wheels, and the two railings are fixedly connected with the same soft rope. The self-locking wheels facilitate the movement of the whole structure, and the self-locking wheels have existing mechanical self-locking structures.

[0010] Preferably, the outer wall of the rectangular column is slidably connected to the inner wall of the rectangular groove, the rectangular column moves outward along the rectangular groove, and the rectangular column rotates synchronously with the cylinder through the rectangular groove.

[0011] Preferably, the top of the anti-slip standing board is fixedly connected to a fence net, and the outer walls of the two vertical sleeves are hinged with double doors. The double doors are composed of two mesh frames, and door locks are installed between them. The door locks can be common types such as bolts and latches.

[0012] Preferably, a soft rope connects the railing at the anti-slip standing board and the railing at the stair tread. This soft rope serves as a barrier and a grip, preventing gaps at the connection between stair treads that could pose a safety hazard, and also providing leverage for workers when going up or down the treads.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution uses diagonal braces, adjusting rods, and anti-slip standing boards to form a stable triangular support, adapting to different working height requirements. Guardrails, fencing, and double doors form a closed protective structure to prevent falls. The anti-slip standing boards provide a stable standing surface, capable of withstanding reaction forces from drilling and cutting, reducing the risk of swaying. The diagonal braces, vertical bars, and guardrails can be quickly folded to reduce space occupation, facilitating transportation and storage. Bolt fastening and telescopic structures allow for quick adjustment and fixation, improving work efficiency. The stair treads design facilitates climbing; standing work is more comfortable than using ladders, reducing fatigue risks. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

[0016] Figure 1 This is a three-dimensional structural diagram of a stair-type mobile device for working at heights, as proposed in this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of a stair-type mobile device for working at heights, as proposed in this utility model.

[0018] Figure 3 This utility model proposes a stair-type mobile device for working at heights. Figure 2 A magnified structural diagram of part A in the diagram;

[0019] Figure 4 This is a partial cross-sectional structural diagram of a staircase-type mobile device for working at heights, as proposed in this utility model.

[0020] In the diagram: 1. Anti-slip standing board; 2. Diagonal bar; 3. Stair tread; 4. Vertical bar; 5. Heightening bar; 6. Self-locking wheel; 7. Connecting rod; 8. Adjusting rod; 9. Threaded mating hole; 10. Fence net; 11. Double door; 12. Vertical sleeve; 13. Railing; 14. Round sleeve; 15. Column; 16. Spring; 17. Rectangular column; 18. Pad; 19. Limiting post; 20. Soft rope; 21. Horizontal plate. Detailed Implementation

[0021] 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.

[0022] Depend on Figures 1-4 As shown, a stair-type mobile device for working at heights is disclosed, comprising an anti-slip standing board 1. Two diagonal rods 2 are hinged to the outer wall of the anti-slip standing board 1, and multiple stair treads 3 are fixedly connected between the two diagonal rods 2 for climbing. Multiple vertical sleeves 12 are installed on the outer walls of the anti-slip standing board 1 and the two diagonal rods 2, and existing screws are installed on the outer walls of the multiple vertical sleeves 12. Railings 13 are slidably connected to the inner walls of the multiple vertical sleeves 12. The multiple vertical sleeves 12 are divided into four groups, located on the two diagonal rods 2 and at the front and rear positions of the anti-slip standing board 1, respectively. The four railings 13 can be moved up and down through the four groups of vertical sleeves 12 to adjust the extension distance, and the screws on the vertical sleeves 12 can be rotated to press and fix their positions.

[0023] Multiple circular sleeves 14 are fixedly connected to the top of the anti-slip standing board 1 and the two diagonal bars 2. The inner walls of the multiple circular sleeves 14 are rotatably connected to cylinders 15. One end of the cylinder 15 is fixedly connected to the outer wall of the vertical sleeve 12. The cylinder 15 rotates through the circular sleeves 14, thereby driving the railing 13 to rotate.

[0024] A rectangular groove is formed on the outer wall of the cylinder 15. A spring 16 is fixedly connected to the inner wall of the rectangular groove. A rectangular column 17 is fixedly connected to one end of the spring 16. The spring 16 ensures that the rectangular column 17 has the ability to extend and retract. The outer wall of the rectangular column 17 is slidably connected to the inner wall of the rectangular groove. A pad 18 is fixedly connected to one end of the rectangular column 17. A limit post 19 is fixedly connected to the outer wall of the pad 18. An arc-shaped groove is formed on the outer wall of the sleeve 14. The inner wall of the arc-shaped groove is slidably connected to the outer wall of the limit post 19. When the railing 13 rotates outward, causing the cylinder 15 to rotate along the sleeve 14, the pad 18 drives the limit post 19 to rotate. When the limit post 19 is located on one side of the arc-shaped groove, it moves due to the tension of the spring 16. The limit post 19 is located in the arc-shaped groove, limiting the rotation of the cylinder 15, thereby fixing the position of the railing 13.

[0025] The bottom of the anti-slip standing board 1 is equipped with a telescopic assembly, which includes two vertical rods 4. The tops of the two vertical rods 4 are hinged to the bottom of the anti-slip standing board 1, and the bottoms of the two vertical rods 4 are fixedly connected to threaded rods. The outer walls of the two threaded rods are threaded with extension rods 5. The two extension rods 5 are fixedly connected to each other by a horizontal plate 21, which increases the connection between them and improves stability. The extension rods 5 rotate through the threaded rods, giving them telescopic capabilities. The bottoms of the extension rods 5 and the diagonal rods 2 are fixedly connected to self-locking wheels 6. The railings at the anti-slip standing board and the railings at the stair treads are fixedly connected to the same soft rope 20. The soft rope 20 makes it easy for the operator to hold and walk up and down, and also serves as a protective barrier.

[0026] Both threaded rods have rectangular washers threaded onto their outer walls. The rectangular washers are rotated to the top of the heightening rod 5 for compression and fixation to prevent the heightening rod 5 from rotating on its own. Both heightening rods 5 have connecting rods 7 rotatably connected to their outer walls via existing shafts. Both connecting rods 7 and the outer wall of the anti-slip standing plate 1 have threaded holes. Fastening bolts are threaded onto the inner walls of the threaded holes. The fastening bolts fix the connecting rods 7 and the vertical rods 4 to the bottom of the anti-slip standing plate 1.

[0027] The outer wall of the inclined rod 2 is equipped with an adjustment assembly, which includes four adjustment rods 8. The outer walls of the two inclined rods 2 are rotatably connected to one end of each of the four adjustment rods 8 via existing shafts. The outer walls of the anti-slip standing plate 1 and the two heightening rods 5 are each provided with multiple threaded mating holes 9. The outer walls of the adjustment rods 8 are provided with through holes, and locking bolts are threaded onto the inner walls of the through holes. The locking bolts can be selected through the multiple threaded mating holes 9 to change the position of the other end of the adjustment rod 8 on the anti-slip standing plate 1 and the two heightening rods 5, thereby changing the support angle of the inclined rod 2. A fence net 10 is fixedly connected to the top of the anti-slip standing plate 1, and the outer walls of the two vertical sleeves 12 are hinged with double doors 11. The four adjustment rods are two sets of adjustment rods 8 of different lengths. One set is used to connect the inclined rod 2 and the anti-slip standing plate 1, and the other set is used to connect the inclined rod 2 and the heightening rods 5. The adjustment rod connecting the inclined rod 2 and the heightening rod 5 serves as a diagonal support, mainly to further ensure the stability of the device.

[0028] Working Principle: When performing work at height, rotating the two locking bolts releases the angle support of the two adjusting rods 8 on the two diagonal rods 2. Rotating the two diagonal rods 2 and the two heightening rods 5 adjusts the height of the anti-slip standing plate 1. Rotating the two adjusting rods 8 again aligns their through holes on their outer walls with the two threaded mating holes 9 on the front and rear sides of the anti-slip standing plate 1. Rotating the other two adjusting rods 8 aligns their other ends with the threaded mating holes 9 on the outer walls of the two heightening rods 5. Rotating the four fastening bolts into the four through holes and the four threaded mating holes 9 creates multiple triangular supports between the diagonal rods 2, adjusting rods 8, anti-slip standing plate 1, and heightening rods 5. The four railings 13 extend and retract vertically via multiple vertical sleeves 12, and are then secured with existing screws. This can be adjusted according to the operator's needs. In use, the operator climbs to the top of the anti-slip standing board 1 via multiple stair treads 3, opens the double doors 11, and the two railings 13, the fence net 10, and the double doors 11 at the top of the anti-slip standing board 1 form a protective enclosure, with the operator in a standing position for easy subsequent operation; when it is time to store after use, turn the two locking bolts and the two fastening bolts to release the positions of the two diagonal bars 2 and the two vertical bars 4, turn the two diagonal bars 2 toward the bottom of the anti-slip standing board 1, turn the two vertical bars 4 and the two heightening bars 5 to the right to make the whole thing more horizontal, pull the limiting posts 19 on the four round sleeves 14 outward to overcome the elastic force of the springs 16, after the limiting posts 19 are disengaged from the arc-shaped grooves, they slide along the outer wall of the round sleeves 14, and turn the four railings 13 inward to fold them.

[0029] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stair-type mobile device for working at heights, comprising an anti-slip standing platform (1), characterized in that, The outer wall of the anti-slip standing board (1) is hinged with two diagonal rods (2), and multiple stair treads (3) are fixedly connected between the two diagonal rods (2). The bottom of the anti-slip standing board (1) is provided with a telescopic component, and the outer wall of the diagonal rods (2) is provided with an adjustment component. Multiple vertical sleeves (12) are installed on the outer walls of the anti-slip standing board (1) and the two diagonal rods (2). The inner walls of the multiple vertical sleeves (12) are slidably connected with railings (13). Multiple round sleeves (14) are fixedly connected to the top of the anti-slip standing board (1) and the two diagonal rods (2). The inner walls of the multiple round sleeves (14) are all A cylinder (15) is rotatably connected. One end of the cylinder (15) is fixedly connected to the outer wall of the vertical sleeve (12). A rectangular groove is provided on the outer wall of the cylinder (15). A spring (16) is fixedly connected to the inner wall of the rectangular groove. A rectangular column (17) is fixedly connected to one end of the spring (16). A pad (18) is fixedly connected to one end of the rectangular column (17). A limit post (19) is fixedly connected to the outer wall of the pad (18). An arc-shaped groove is provided on the outer wall of the sleeve (14). The inner wall of the arc-shaped groove is slidably connected to the outer wall of the limit post (19).

2. The stair-type mobile device for working at heights according to claim 1, characterized in that, The telescopic assembly includes two vertical rods (4), the tops of which are hinged to the bottom of the anti-slip standing plate (1). The bottoms of the two vertical rods (4) are fixedly connected to threaded rods. The outer walls of the two threaded rods are threaded with height-increasing rods (5). The outer walls of the two threaded rods are threaded with rectangular washers. The outer walls of the two height-increasing rods (5) are rotatably connected to connecting rods (7). The connecting rods (7) and the outer walls of the anti-slip standing plate (1) are both provided with threaded holes. The inner walls of the threaded holes are threaded with fastening bolts.

3. The stair-type mobile device for working at heights according to claim 1, characterized in that, The adjustment assembly includes four adjustment rods (8), and the outer walls of the two inclined rods (2) are rotatably connected to one end of the four adjustment rods (8). The outer walls of the anti-slip standing plate (1) and the two height-increasing rods (5) are provided with multiple threaded docking holes (9). The outer walls of the adjustment rods (8) are provided with through holes, and the inner walls of the through holes are threaded with locking bolts.

4. A stair-type mobile device for working at heights according to claim 2, characterized in that, The bottom of both the heightening rod (5) and the diagonal rod (2) are fixedly connected to self-locking wheels (6).

5. A stair-type mobile device for working at heights according to claim 1, characterized in that, The outer wall of the rectangular column (17) is slidably connected to the inner wall of the rectangular groove.

6. A stair-type mobile device for working at heights according to claim 1, characterized in that, The top of the anti-slip standing board (1) is fixedly connected to a fence net (10), and the outer walls of the two vertical sleeves (12) are hinged with double doors (11).

Images