Carrying stair-climbing trolley
By designing a rear push-type stair climbing cart, the climbing wheels and track walking racks with curved wheels and trapezoidal grooves are used to solve the problem of time-consuming, labor-intensive and unsafe handling in the prior art, and achieve a more labor-saving, clear and stable cargo handling effect.
Patent Information
- Application Number
- CN202421855287.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the prior art, when items are transported on large floors without elevators or cannot be accommodated by elevators, porters need to take stairs, which leads to time-consuming and laborious handling and unsafe handling, and the perspective of the front-pull-type stair climbing truck is poor, which can easily cause goods to slip or overturn.
A cart carrying stairs is designed, adopting a push-back structure, equipped with stairs with curved wheels and trapezoidal grooves, combined with a crawler walking rack and an intermediate ferry, to increase friction and stability.
It realizes more labor-saving cargo handling, with clear perspectives, reducing the risk of goods falling, the track walking structure improves the smoothness and stability of movement, and the arc-shaped wheel clamping steps are more stable and reliable.
Smart Images
Figure CN223031046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to equipment for handling articles on floors, in particular to a load-carrying stair-climbing trolley. Background Art
[0002] When handling articles on some floors without elevators or where the elevator shafts cannot accommodate large-sized and heavy articles, or on mountain climbing stairs, porters generally need to carry the articles up the stairs step by step. Usually, porters use ropes to tie and carry the articles on their backs or shoulders. This handling method is not only time-consuming and laborious, but also very unsafe. For this reason, some stair-climbing trolleys have emerged on the market. The stair-climbing trolleys are driven by electricity, but most of them adopt a front-pulling handling method. This handling method is not only unreasonable in terms of stair-climbing, consumes a lot of physical strength, but also because the front-pulling method cannot see the situation of the goods during handling at any time, and if slipping occurs, it will cause the goods to tip over. Content of the Utility Model
[0003] Aiming at the problems existing in the handling of articles in the above-mentioned prior art, the utility model provides a load-carrying stair-climbing trolley with a more reasonable structure, more convenient and safe use, and higher working efficiency.
[0004] The technical problem to be solved by the utility model and the technical solution adopted are as follows: The load-carrying stair-climbing trolley includes a load-carrying frame, stair-climbing wheels, a crawler walking frame, a driving motor, a power supply, and a control panel. A number of arc-shaped wheel pieces are annularly and spacedly arranged on the stair-climbing wheels, and trapezoidal grooves are formed between the arc-shaped wheel pieces. The stair-climbing wheels are connected through stair-climbing wheel shafts. A rotary bearing is fixedly arranged inside the stair-climbing wheel shafts. The rotary bearing is fixedly connected to a pushing handrail, a crawler walking frame, and a load-carrying frame. The crawler walking frame is fixedly connected to the lower part of the load-carrying frame. Crawler wheels are symmetrically arranged at the front and rear ends of the crawler walking frame respectively. The crawler wheels at the rear end are connected through a crawler wheel shaft. Intermediate transition wheels are symmetrically arranged at positions lower than the crawler wheels in the middle of the crawler walking frame. The intermediate transition wheels are connected through intermediate transition wheel shafts. A crawler is sleeved on the crawler wheels and the intermediate transition wheels. One end of the crawler wheel shaft is provided with a first transmission sprocket, and the first transmission sprocket is connected to a driving sprocket on the output shaft of the driving motor through a first transmission chain. The other end of the crawler wheel shaft is provided with a second transmission sprocket, and the second transmission sprocket is connected to a third transmission sprocket fixedly arranged on the stair-climbing wheel shaft through a second transmission chain.
[0005] Further, the rotary bearing is connected to the pushing handrail through a connecting plate. A reinforcing plate is arranged on the load-carrying frame, and a hanging ear is arranged on the crawler walking frame. The connecting plate and the reinforcing plate are fixedly connected at the hanging ear.
[0006] Further, anti-slip rubber pads are arranged on the arc-shaped wheel pieces.
[0007] Further, the crawler wheels at the front end of the crawler walking frame are arranged in kidney-shaped adjustment grooves.
[0008] Advantages of the utility model: 1. Changing the front-pulling structure to a rear-pushing structure not only makes it more labor-saving to carry goods, but also provides a clear view and prevents the sudden dropping of goods; 2. Adding an intermediate wheel at a certain angle to the track wheels in the track walking structure to increase the contact area between the track and the steps, improve the moving friction, and make the track wheels in the track frame move more smoothly and not prone to slipping; 3. Using a climbing wheel with an arc-shaped wheel piece with trapezoidal grooves to climb the stair steps, which is more stable and reliable for clamping the stair steps. Description of the Drawings
[0009] Figure 1 is a top view structural schematic diagram of the utility model,
[0010] Figure 2 is Figure 1 the A-A cross-sectional structural schematic diagram in
[0011] Figure 3 is Figure 2 the enlarged structural schematic diagram at B in
[0012] Figure 4 is a structural schematic diagram of the utility model in the use state.
[0013] In the figure, 1. Horizontal loading plate; 2. Driving sprocket; 3. Track; 4. Track wheel; 5. Rotary bearing; 6. Climbing wheel; 7. Power supply; 8. Pushing handrail; 9. Climbing wheel shaft; 10. Driving motor; 11. First driving sprocket; 12. First driving chain; 13. Third driving sprocket; 14. Second driving chain; 15. Second driving sprocket; 16. Connecting plate; 17. Track wheel shaft; 18. Hanging ear; 19. Reinforcing plate; 20. Track walking frame; 21. Control panel; 22. Vertical loading plate; 23. Power supply fixing frame; 24. Intermediate transition wheel; 25. Waist-shaped adjustment groove; 26. Intermediate transition wheel shaft; 27. Anti-slip rubber pad; 28. Trapezoidal groove; 29. Arc-shaped wheel piece; 30. Stair step. Detailed Implementation Manner
[0014] In order to enable those skilled in the art to better understand the technical solution of the utility model, the following further describes the utility model in detail according to the drawings in combination with specific embodiments.
[0015] As shown in the figure, the load-carrying stair-climbing trolley includes a load-carrying rack, stair-climbing wheels 6, a crawler walking rack 20, a driving motor, a power source 7, and a control panel 21. The load-carrying rack is composed of a horizontal load-carrying plate 1 and a vertical load-carrying plate 22 that are perpendicular to each other. The driving motor is supported on a crossbar on the crawler walking rack (not marked in the figure). The power source is fixed to the load-carrying rack through a power source fixing bracket 23. The power source is connected to the motor (the power source is preferably an industrial lithium battery), and the motor is connected to the control panel. The control panel includes multiple control buttons (such as a power switch, a forward / backward switching button, a power and voltage display screen, a speed fine-tuning knob, a work start switch, etc.). A number of arc-shaped wheel pieces 29 are arranged at intervals in a ring on the stair-climbing wheels. Anti-slip rubber pads 27 are provided on the arc-shaped wheel pieces, and trapezoidal grooves 28 are formed between the arc-shaped wheel pieces. The stair-climbing wheels are connected through a stair-climbing wheel shaft 9. A rotary bearing 5 is fixedly arranged inside the stair-climbing wheel shaft. The rotary bearing is fixedly connected to a push handle 8, the crawler walking rack 20, and the load-carrying rack (a specific connection method: the rotary bearing is connected to the push handle through a connecting plate 16. A reinforcing plate 19 is provided on the load-carrying rack, and a hanging ear 18 is provided on the crawler walking rack. The connecting plate and the reinforcing plate are fixedly connected at the hanging ear). The crawler walking rack is fixedly connected to the lower part of the load-carrying rack. Crawler wheels 4 are symmetrically arranged at the front and rear ends of the crawler walking rack respectively. The crawler wheel at the front end of the crawler walking rack is arranged in a kidney-shaped adjustment groove 25, and the crawler wheels at the rear end are connected through a crawler wheel shaft 17. Intermediate transition wheels 24 are symmetrically arranged at positions lower than the crawler wheels in the middle of the crawler walking rack. The intermediate transition wheels are connected through an intermediate transition wheel shaft 26. A crawler 3 is sleeved on the crawler wheels and the intermediate transition wheels. A first driving sprocket 11 is arranged at one end of the crawler wheel shaft. The first driving sprocket is connected to a driving sprocket 2 on the output shaft of the driving motor 10 through a first driving chain 12. A second driving sprocket 15 is arranged at the other end of the crawler wheel shaft. The second driving sprocket is connected to a third driving sprocket 13 fixedly arranged on the stair-climbing wheel shaft through a second driving chain 14.
[0016] Brief description of the working process of the present utility model: Place the goods on the load-carrying rack and tie and fix them. Then lift the handrail upward. The rotary bearing on the stair-climbing wheel shaft rotates accordingly, driving the connecting plate together with the load-carrying rack and the crawler walking rack to be lifted and placed on the stair step 30 at a certain inclination angle with the horizontal. Control the driving motor to start working. The output shaft of the driving motor drives the driving sprocket to rotate, so as to drive the crawler wheel shaft and the first driving sprocket at one end of the crawler wheel shaft to rotate through the first driving chain. While the first driving sprocket rotates, it drives the crawler wheels and the intermediate transition wheels to rotate, so that the load-carrying rack moves forward on the stair step; in addition, while the crawler wheel shaft rotates, the second driving sprocket at the other end of the crawler wheel also rotates simultaneously, so as to drive the third driving sprocket on the stair-climbing wheel shaft to drive the stair-climbing wheels to rotate through the second driving chain. The trapezoidal grooves between the arc-shaped wheel pieces of the stair-climbing wheels calmly catch the two sides of the steps during the movement process to climb upward, thus completing the handling of the goods.
[0017] It should be noted that the automatic control part involved in the present utility model and the content not described in the specification are all prior arts. The above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit. Although the present utility model has been described in detail with reference to specific embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered by the scope of protection of the claims of the present utility model.
Claims
1. The cargo climbing trolley is characterized by: The invention comprises a loading rack, a climbing wheel (6), a crawler walking frame (20), a driving motor (10), a power supply (7) and a control panel (21); a plurality of arcuate wheel pieces (29) are arranged at intervals on the climbing wheel; a trapezoidal groove (28) is formed between the arcuate wheel pieces; the climbing wheel is connected via a climbing wheel shaft (9); a rotating bearing (5) is fixedly arranged on the inner side of the climbing wheel shaft; the rotating bearing is fixedly connected to a push handrail (8), a crawler walking frame (20) and the loading rack; the crawler walking frame is fixedly connected to the lower part of the loading rack; crawler wheels (4) are symmetrically arranged at the front and rear ends of the crawler walking frame; and the crawler wheels at the rear end are connected to each other. The crawler wheel shaft (17) is connected, and an intermediate transition wheel (24) is symmetrically arranged at a position lower than the crawler wheel in the middle of the crawler walking frame, and the intermediate transition wheel is connected through an intermediate transition wheel shaft (26). The crawler wheel and the intermediate transition wheel are sleeved with a crawler (3). A first transmission sprocket (12) is arranged at one end of the crawler wheel shaft, and the first transmission sprocket is connected to a driving sprocket (2) on an output shaft of a driving motor (10) through a first transmission chain (11). A second transmission sprocket (15) is arranged at the other end of the crawler wheel shaft, and the second transmission sprocket is connected to a third transmission sprocket (13) fixedly arranged on the climbing wheel shaft through a second transmission chain (14).
2. The cargo stair climbing trolley according to claim 1, characterized in that: The rotary bearing (5) is connected to the push armrest (8) via a connecting plate (16); a reinforcing plate (19) is provided on the load carrier; a hanging ear (18) is provided on the crawler walking frame (20); and the connecting plate and the reinforcing plate are fixedly connected at the hanging ear.
3. The cargo stair climbing trolley according to claim 1, characterized in that: An anti-slip rubber pad (27) is provided on the arc-shaped wheel piece (29).
4. The cargo stair climbing trolley according to claim 1, characterized in that: The track wheel (4) at the front end of the track traveling frame (20) is arranged in a waist-shaped adjustment groove (25).