A stroller with stair climbing function

Abstract

The utility model discloses a trolley with stair uplink function, including bottom bearing frame, the upper end of bottom bearing frame is provided with the car body structure, the inside of car body structure is provided with the auxiliary uplink structure, the auxiliary uplink structure includes the side support board of symmetrical setting in the inside of bottom bearing frame, the inner wall fixedly connected with the slide of side support board, the surface sliding connection of slide has the sliding seat, the bottom fixedly connected with electric telescopic pump of sliding seat. The utility model provides a trolley with stair uplink function, and the device can realize the jacking of car body structure through the setting auxiliary uplink structure cooperation infrared sensor and controller, and infrared sensor and controller can accurately judge the step height and the lift position cooperation, so can play the key role to the stair uplink of trolley through controller control electric telescopic pump cooperation support leg, and then can solve the inconvenient problem of trolley uplink stair.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, and in particular to a handcart with a stair-climbing function. Background Technology

[0002] Strollers for the elderly, also known as walking aids, are primarily used to assist seniors with rehabilitation training and walking in indoor spaces, communities, parks, supermarkets, and other locations. They are particularly suitable for seniors with mobility issues, providing support and assistance when needed, while also offering support and rest areas for shopping.

[0003] For example, Chinese Patent Publication No. (CN222195444U) discloses a handcart for the elderly, which describes: "It includes a support device, a support plate, a seat, a support frame, and two connecting plates. The top of the support device is fixedly connected to the bottom of the support plate. A lifting device is connected to the support plate. The bottom of the seat is connected to the top of the lifting device. One end of each of the two connecting plates is fixedly connected to the side wall of the seat. An installation plate is fixedly connected between the two connecting plates. The bottom ends of the support frame are respectively movably inserted into the grooves opened on the top of the two connecting plates. The support frame is connected to the two connecting plates through a limiting component installed on the installation plate. The handcart for the elderly provided by this utility model adjusts the height of the seat and the support frame separately, so that the support frame is not too high when the elderly have a large degree of back curvature."

[0004] In summary, the device also has the following technical problems: Since some elderly people live in older residential communities, which are mostly apartment buildings without elevators due to building age and construction requirements, it is difficult for some elderly people with mobility issues to go up and down stairs. At the same time, since most elderly people prefer to use trolleys, this can cause inconvenience for those living on the second floor or above. Therefore, it is necessary to propose a trolley with stair-climbing function to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to provide a trolley with stair-climbing function to address the above-mentioned technical problems. This device, by setting an auxiliary upward structure in conjunction with infrared sensors and a controller, can lift the trolley structure. The infrared sensors and controller work together to accurately determine the step height and lifting position. In this way, the controller can control the electric telescopic pump in conjunction with the support legs to play a key role in the upward movement of the trolley up stairs, thereby solving the problem of the inconvenience of pushing the trolley up stairs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A trolley with a stair-climbing function.

[0008] The trolley with stair-climbing function specifically includes a bottom support frame, a trolley body structure at the upper end of the bottom support frame, and an auxiliary upward structure inside the trolley body structure.

[0009] The auxiliary upward structure includes side support plates symmetrically arranged inside the bottom support frame. A sliding rod is fixedly connected to the inner wall of the side support plate. A sliding seat is slidably connected to the surface of the sliding rod. An electric telescopic pump is fixedly connected to the bottom end of the sliding seat. A support leg is fixedly connected to the output end of the electric telescopic pump.

[0010] As a preferred embodiment of the trolley with stair-climbing function provided by this utility model, the number of sliding rods is four, and the surface of each of the four sliding rods is slidably connected to an electric telescopic pump through a sliding seat. A return spring is sleeved on the surface of each sliding rod, and the two ends of the return spring are fixedly connected to the surface of the sliding seat and the side support plate, respectively.

[0011] As a preferred embodiment of the trolley with stair-climbing function provided by this utility model, a positioning mounting frame is fixedly connected to the top of the bottom support frame, a pushing frame is fixedly connected to the upper end of the positioning mounting frame, handrails are symmetrically fixedly connected to both sides of the pushing frame, and the side support plate is fixedly connected to the inside of the positioning mounting frame.

[0012] As a preferred embodiment of the trolley with stair-climbing function provided by this utility model, a seat cushion is fixedly connected to the top surface of the positioning mounting frame, a backrest is fixedly connected to the inside of the pushing frame, four universal wheels are provided at the bottom of the bottom support frame, and a foot support is fixedly connected to one side of the bottom support frame.

[0013] As a preferred embodiment of the trolley with stair-climbing function provided by this utility model, a controller is fixedly connected to the rear side of the positioning mounting frame, and infrared sensors are symmetrically fixedly connected to both sides of the bottom support frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a trolley with stair-climbing function. This device, by setting an auxiliary upward structure in conjunction with an infrared sensor and a controller, can lift the trolley structure. The infrared sensor and controller work together to accurately determine the height of the steps and the lifting and lowering position. In this way, the controller can control the electric telescopic pump to work with the support legs to play a key role in the upward movement of the trolley up stairs, thereby solving the problem of the inconvenience of pushing the trolley up stairs. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the trolley with stair-climbing function provided by this utility model;

[0018] Figure 2 A rear view schematic diagram of the overall structure of the trolley with stair-climbing function provided by this utility model;

[0019] Figure 3 A schematic diagram of the internal structure of the trolley positioning and mounting frame with stair up function provided by this utility model;

[0020] Figure 4 A schematic diagram of the trolley auxiliary upward structure with staircase upward function provided by this utility model;

[0021] Figure 5 A schematic diagram of the electric telescopic pump with stair up function, bottom connecting rod and directional pulley provided by this utility model.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Bottom support frame; 2. Vehicle body structure; 3. Auxiliary upward structure; 4. Positioning and mounting frame; 5. Push frame; 6. Armrest; 7. Seat cushion; 8. Backrest; 9. Controller; 10. Infrared sensor; 11. Casters; 12. Foot support; 13. Side support plate; 14. Slide rod; 15. Sliding seat; 16. Electric telescopic pump; 17. Support leg; 18. Return spring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] As mentioned in the background, some elderly people live in older residential communities, which are mostly walk-up buildings. Due to the age of the buildings and building requirements, elevators were not installed. This makes it difficult for some elderly people with mobility issues to go up and down the stairs. In addition, since most elderly people prefer to use strollers, this can cause inconvenience for those living on the second floor or above.

[0026] To solve this technical problem, this utility model provides a trolley with a stair-climbing function.

[0027] For details, please refer to Figure 1 and Figure 5 The trolley with stair up function specifically includes a bottom support frame 1, a trolley body structure 2 at the upper end of the bottom support frame 1, and an auxiliary up structure 3 inside the trolley body structure 2.

[0028] The auxiliary upward structure 3 includes side support plates 13 symmetrically arranged inside the bottom support frame 1. A slide rod 14 is fixedly connected to the inner wall of the side support plate 13. A slide seat 15 is slidably connected to the surface of the slide rod 14. An electric telescopic pump 16 is fixedly connected to the bottom end of the slide seat 15. A support leg 17 is fixedly connected to the output end of the electric telescopic pump 16.

[0029] The trolley with stair-climbing function provided by this utility model can lift the trolley body structure 2 by setting an auxiliary upward structure 3 in conjunction with an infrared sensor 10 and a controller 9. The infrared sensor 10 and the controller 9 work together to accurately determine the step height and the lifting and lowering position. In this way, the controller 9 can control the electric telescopic pump 16 in conjunction with the support leg 17 to play a key role in the upward movement of the trolley up the stairs, thereby solving the problem of the inconvenience of pushing the trolley up stairs.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example

[0032] Please refer to Figures 1-5 A trolley with stair-climbing function includes a bottom support frame 1, a trolley body structure 2 at the upper end of the bottom support frame 1, and an auxiliary upward structure 3 inside the trolley body structure 2.

[0033] The auxiliary upward structure 3 includes side support plates 13 symmetrically arranged inside the bottom support frame 1. A slide rod 14 is fixedly connected to the inner wall of the side support plate 13. A slide seat 15 is slidably connected to the surface of the slide rod 14. An electric telescopic pump 16 is fixedly connected to the bottom end of the slide seat 15. A support leg 17 is fixedly connected to the output end of the electric telescopic pump 16.

[0034] Specifically, there are four slide rods 14. The surfaces of the four slide rods 14 are slidably connected to the electric telescopic pumps 16 via sliding seats 15. The surfaces of the slide rods 14 are fitted with return springs 18, and the two ends of the return springs 18 are fixedly connected to the surfaces of the sliding seats 15 and the side support plates 13, respectively.

[0035] Specifically, a positioning mounting frame 4 is fixedly connected to the top of the bottom support frame 1, a push frame 5 is fixedly connected to the upper end of the positioning mounting frame 4, handrails 6 are symmetrically fixedly connected to both sides of the push frame 5, and a side support plate 13 is fixedly connected to the inside of the positioning mounting frame 4.

[0036] Specifically, a seat cushion 7 is fixedly connected to the top surface of the positioning mounting frame 4, a backrest 8 is fixedly connected to the inside of the push frame 5, four universal wheels 11 are provided at the bottom of the bottom support frame 1, and a foot support 12 is fixedly connected to one side of the bottom support frame 1.

[0037] Specifically, a controller 9 is fixedly connected to the rear side of the positioning mounting bracket 4, and infrared sensors 10 are symmetrically fixedly connected to both sides of the bottom support bracket 1.

[0038] With the above structural design, after the trolley reaches the front of the stairs, the infrared sensor 10 detects an obstacle in front. At this time, the output ends of the two electric telescopic pumps 16 on both sides of the controller 9 extend, and the electric telescopic pumps 16 push the support legs 17 down to contact the ground. The output ends of the electric telescopic pumps 16 continue to extend, thereby pushing the entire vehicle structure 2 to rise. After the vehicle structure 2 rises above the front stairs, the infrared sensor 10 detects that the obstacle in front has disappeared. At this time, the controller 9 controls the electric telescopic pumps 16 to stop rising. After completion, the entire vehicle structure 2 is pushed forward by the push frame 5 so that the front universal wheel 11 is above the step. While the entire vehicle structure 2 moves, the two sets of electric telescopic pumps 16 on both sides slide on the surface of the slide rod 14 through the sliding seat 15 and squeeze and contract the return spring 18. After the movement, the two sets of electric telescopic pumps 16 in the middle are above the first step.

[0039] When the front of the omnidirectional wheel 11 contacts the second step, the infrared sensor 10 detects an obstacle in front again. At this time, the controller 9 controls the two sets of electric telescopic pumps 16 in the middle to extend so that the support legs 17 at the bottom contact the surface of the first step and push the vehicle body structure 2 to rise as a whole. At the same time, the controller 9 controls the output ends of the electric telescopic pumps 16 on both sides to retract and detach from the ground. When the support legs 17 detach from the ground, the reset spring 18 pushes the sliding seat 15 to reset the electric telescopic pumps 16 to the middle. When the infrared sensor 10 detects that the obstacle in front has disappeared, it controls the two electric telescopic pumps 16 in the middle to stop extending. At this time, it pushes the push frame 5 to move the vehicle body structure 2 to the top of the second step. At this time, the electric telescopic pumps 16 on both sides move to the top of the second step along with the vehicle body structure 2.

[0040] By repeating the above steps, the stairs of the vehicle can be ascended.

Claims

1. A trolley with stair-climbing function, characterized in that; Includes a bottom support frame (1), the upper end of which is provided with a vehicle body structure (2), and the interior of the vehicle body structure (2) is provided with an auxiliary upward structure (3); The auxiliary upward structure (3) includes side support plates (13) symmetrically arranged inside the bottom support frame (1). A slide rod (14) is fixedly connected to the inner wall of the side support plate (13). A slide seat (15) is slidably connected to the surface of the slide rod (14). An electric telescopic pump (16) is fixedly connected to the bottom end of the slide seat (15). A support leg (17) is fixedly connected to the output end of the electric telescopic pump (16).

2. The trolley with stair-climbing function according to claim 1, characterized in that, There are four slide rods (14). The surfaces of the four slide rods (14) are slidably connected to an electric telescopic pump (16) via a sliding seat (15). A return spring (18) is sleeved on the surface of each slide rod (14). The two ends of the return spring (18) are fixedly connected to the surfaces of the sliding seat (15) and the side support plate (13), respectively.

3. The trolley with stair-climbing function according to claim 1, characterized in that, The bottom support frame (1) is fixedly connected to the top of the positioning mounting frame (4), the upper end of the positioning mounting frame (4) is fixedly connected to the push frame (5), the two sides of the push frame (5) are symmetrically fixedly connected to the handrails (6), and the side support plate (13) is fixedly connected to the inside of the positioning mounting frame (4).

4. The trolley with stair-climbing function according to claim 3, characterized in that, A seat cushion (7) is fixedly connected to the top surface of the positioning mounting bracket (4), a backrest (8) is fixedly connected inside the push frame (5), four universal wheels (11) are provided at the bottom of the bottom support frame (1), and a foot support (12) is fixedly connected to one side of the bottom support frame (1).

5. The trolley with stair-climbing function according to claim 4, characterized in that, A controller (9) is fixedly connected to the rear side of the positioning mounting bracket (4), and infrared sensors (10) are symmetrically fixedly connected to both sides of the bottom support bracket (1).

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