Stair-climbing moving trolley with high trafficability

Abstract

The utility model discloses a stair-climbing moving trolley with high trafficability, which belongs to the technical field of moving equipment and comprises a trolley body, a driving component and four groups of double-alternating climbing components. The four sets of double-alternate climbing assemblies are installed on the vehicle body in a rectangular shape, and the driving assembly is in transmission connection with the vehicle body. The double alternate climbing assemblies comprise an alternate climbing assembly I and an alternate climbing assembly II; the first alternate climbing assembly and the second alternate climbing assembly are both installed on the vehicle body and located on the inner side and the outer side of the vehicle body correspondingly. By means of the mode, the stair climbing function is achieved, and high passing performance is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile equipment technical field, concretely relates to a strong passability's stair -climbing mobile trolley. BACKGROUND

[0002] Stair -climbing mobile trolley is widely used in going up and down stairs.

[0003] Among numerous prior art, Chinese patent application CN105774867B discloses a kind of electric trolley that can climb stairs, it includes the frame comprising the pivot of front end below, rear end upper portion is provided with push hand and the combined wheel of being set in pivot two ends;The lower end of the frame is provided with motor by chain transmission and pivot connection;The push hand is provided with the button of controlling motor rotation;The rear end of the frame is provided with vertically placed fixed frame;The lower end of the fixed frame is provided with telescopic and one side is provided with spring pin's adjusting frame, and the side surface lower end of fixed frame is also provided with with spring pin cooperation and through-hole;Spring is also set in the fixed frame on the adjusting frame, and the lower end of the adjusting frame is provided with combined wheel, and the adjusting frame is provided with rotary positioning device.

[0004] But, this patent application has requirement to the height of each stair, and its stair -climbing function is invalid for higher stair, therefore there is the problem of poor passability, and it is only used for climbing power and cannot be used as driving force on flat ground.

[0005] Based on this, the utility model discloses a kind of strong passability's stair -climbing mobile trolley to solve above-mentioned problem. UTILITY MODEL CONTENT

[0006] In view of the above-mentioned shortcomings of prior art, the utility model provides a kind of strong passability's stair -climbing mobile trolley.

[0007] To achieve the above object, the utility model is realized by the following technical solutions:

[0008] A kind of strong passability's stair -climbing mobile trolley, including vehicle body and two groups of drive transmission components, further include four groups of double alternate climbing components;

[0009] Four groups of double alternate climbing components are installed on vehicle body in rectangular shape, and two groups of drive transmission components are symmetrically installed on vehicle body left and right and two groups of drive transmission components respectively drive the left and right sides of vehicle body to run;

[0010] The double alternate climbing component includes alternate climbing component one and alternate climbing component two;

[0011] Alternating Climbing Component 1 and Alternating Climbing Component 2 are both installed on the vehicle body, and Alternating Climbing Component 1 and Alternating Climbing Component 2 are located on the inner and outer sides of the vehicle body, respectively.

[0012] Furthermore, both Alternating Climbing Component 1 and Alternating Climbing Component 2 are equipped with climbing wheels.

[0013] Furthermore, the vehicle body includes a frame, four wheels, four axles (one), four axles (two), four axles (three), and four axles (four).

[0014] The four wheels, four axles one, four axles two, four axles three, and four axles four are all mounted on the frame in a rectangular rotatable manner. The central axes of every two axles one and two axles three are collinear, and axles three are located at the end of axles one near the center of the frame. The central axes of every two axles two and two axles four are collinear, and axles two are located at the end of axles two near the center of the frame.

[0015] Rotating shafts two and four are located above rotating shafts one and three, and the angle between the common perpendicular of the central axis of rotating shaft two and the central axis of rotating shaft one and the horizontal plane is 60 degrees.

[0016] Each wheel is fixedly connected to a pivot axle;

[0017] The wheel, axle one, and axle two are all connected to the alternating climbing assembly two.

[0018] Both pivot three and pivot four are connected to alternating climbing assembly one;

[0019] The drive transmission assembly is mounted on the bottom of the frame and is connected to a pivot located at the rear of the frame.

[0020] Furthermore, the drive transmission assembly includes a drive assembly and a transmission assembly;

[0021] The drive assembly is mounted on the bottom of the vehicle frame. The drive assembly is connected to the same-side front and rear axles one and three via a transmission assembly. Axle three is connected to axle four via a transmission assembly, and axle one is connected to axle three via a transmission assembly.

[0022] Furthermore, the drive assembly includes a motor and a drive shaft;

[0023] The motor is fixedly installed at the bottom of the frame, the output end of the motor is fixedly connected to the drive shaft, the drive shaft is rotatably connected to the bottom of the frame, and the drive shaft is connected to the front and rear rotating shaft one and the front and rear rotating shaft three on the same side through a transmission assembly.

[0024] The transmission assembly includes two sets of transmission devices one, two sets of transmission devices two, two sets of transmission devices three, and two sets of transmission devices four. The drive shaft is connected to the front and rear rotating shaft one on the same side through the two sets of transmission devices three. The drive shaft is connected to the front and rear rotating shaft three on the same side through the two sets of transmission devices one. The rotating shaft three and the rotating shaft four are connected through the transmission device two. The rotating shaft one and the rotating shaft two are connected through the transmission device four.

[0025] Furthermore, the alternating climbing component one includes rhombus turntable one, rhombus turntable two, rhombus turntable three, rhombus turntable four, Y-shaped link one, and Y-shaped link two;

[0026] Both rhombus-shaped turntables three and four are fixedly connected to the rotating shaft four, and rhombus-shaped turntables three and four are arranged symmetrically.

[0027] Both rhombus-shaped turntable one and rhombus-shaped turntable two are fixedly connected to the rotating shaft three, and rhombus-shaped turntable one and rhombus-shaped turntable two are arranged symmetrically;

[0028] Diamond turntable 1 and diamond turntable 3 are on the same side, diamond turntable 2 and diamond turntable 4 are on the same side, and diamond turntable 1 is located on the side of diamond turntable 2 closer to the center of the frame;

[0029] The upper end of the rhomboid turntable four is hinged to the upper end of the Y-shaped connecting rod one;

[0030] The lower rear end of Y-shaped connecting rod one is hinged to the upper end of rhomboid turntable two;

[0031] The upper end of Y-shaped connecting rod 2 is hinged to the lower end of rhomboid turntable 3;

[0032] The lower rear end of Y-shaped connecting rod 2 is hinged to the lower end of rhomboid turntable 1.

[0033] Furthermore, the alternating climbing component two includes rhombus turntable five, rhombus turntable six, rhombus turntable seven, Y-shaped link three, and Y-shaped link four;

[0034] The rhomboid turntable five is fixedly connected to the rotating shaft one. The rhomboid turntables six and seven are symmetrically arranged and both are fixedly connected to the rotating shaft two. The lower rear end of the Y-shaped connecting rod three is hinged to the side wall of the wheel, and the upper end of the Y-shaped connecting rod three is hinged to the rear end of the rhomboid turntable six.

[0035] The upper end of Y-shaped link four is hinged to the front end of rhomboid turntable seven, and the lower rear end of Y-shaped link four is hinged to the front end of rhomboid turntable five.

[0036] Furthermore, climbing wheels are rotatably mounted on the lower front side of both Y-shaped link three and Y-shaped link four via one-way bearings;

[0037] Climbing wheels are rotatably mounted on the lower front side of both Y-shaped connecting rod one and Y-shaped connecting rod two via one-way bearings.

[0038] Furthermore, the rhombus-shaped turntables 1, 2, 3, 4, 5, 6, and 7 are all identical in shape and size.

[0039] Furthermore, the Y-shaped connecting rod one, Y-shaped connecting rod two, Y-shaped connecting rod three, and Y-shaped connecting rod four are all the same in shape and size.

[0040] Compared with the prior art, the advantages of this utility model are as follows: 1. When this utility model is used, climbing stairs is achieved through the alternating climbing action of four sets of double alternating climbing components;

[0041] On flat surfaces, the vehicle body is driven by the drive transmission components. When it is necessary to climb stairs, the vehicle body drives four sets of double alternating climbing components to operate synchronously, which can climb stairs or overcome obstacles relatively smoothly.

[0042] 2. The alternating movement of Y-shaped link one and Y-shaped link two, as well as the alternating movement of diamond turntable four and Y-shaped link four, simulates the action of a person climbing stairs with alternating legs, thus achieving strong stair climbing performance. Two or more of the sixteen climbing wheels lift the frame each time, thus providing strong stair climbing stability. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0044] Figure 1 This utility model relates to a three-dimensional stair-climbing mobile cart with strong maneuverability. Figure One ;

[0045] Figure 2 This is a front view of a high-traffic stair-climbing mobile cart according to the present invention;

[0046] Figure 3 This is a left view of a high-traffic stair-climbing mobile cart according to the present invention;

[0047] Figure 4 This utility model relates to a three-dimensional stair-climbing mobile cart with strong maneuverability. Figure Two ;

[0048] Figure 5 This utility model is based on Figure 2 A three-dimensional view with a portion removed along the AA direction;

[0049] Figure 6 This is a perspective view of alternating climbing component one and alternating climbing component two of this utility model;

[0050] Figure 7 This is a perspective view of the alternating climbing component of this utility model;

[0051] Figure 8 This is a perspective view of the alternating climbing component two of this utility model;

[0052] Figure 9 This is a perspective view of the Y-shaped connecting rod and climbing wheel of this utility model;

[0053] Figure 10 This is a perspective view of the vehicle frame of this utility model;

[0054] Figure 11 This is a schematic diagram of the mobile trolley of this utility model climbing stairs. Figure One ;

[0055] Figure 12 This is a schematic diagram of the mobile trolley of this utility model climbing stairs. Figure Two ;

[0056] Figure 13 This is a schematic diagram of the mobile trolley of this utility model climbing stairs. Figure Three ;

[0057] Figure 14 This is a schematic diagram of the mobile trolley of this utility model climbing stairs. Figure Four .

[0058] The labels in the diagram represent:

[0059] 1. Vehicle Body 11. Frame 12. Wheel 13. Axle 1 14. Axle 2 15. Axle 3 16. Axle 4 2. Drive Transmission Assembly 21. Drive Assembly 211. Motor 212. Drive Shaft 22. Transmission Assembly 221. Transmission Device 1 222. Transmission Device 2 23. Transmission Device 3 224. Transmission Device 4 3. Dual Alternating Climbing Assembly 31. Alternating Climbing Assembly 1 311. Diamond Turntable 1 312. Diamond Turntable 2 313. Diamond Turntable 3 314. Diamond Turntable 4 315. Y-Link 1 316. Y-Link 2 32. Alternating Climbing Assembly 2 321. Diamond Turntable 5 322. Diamond Turntable 6 323. Diamond Turntable 7 324. Y-Link 3 325. Y-Link 4 33. Climbing Wheel. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0061] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0062] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-14 It includes the vehicle body 1 and two sets of drive transmission components 2, as well as four sets of dual alternating climbing components 3;

[0063] Four sets of double alternating climbing components 3 are installed in a rectangular shape on the vehicle body 1, and two sets of drive transmission components 2 are symmetrically installed on the vehicle body 1, and the two sets of drive transmission components 2 drive the left and right sides of the vehicle body 1 respectively.

[0064] The dual alternating climbing assembly 3 includes alternating climbing assembly one 31 and alternating climbing assembly two 32;

[0065] Alternating climbing component 1 31 and alternating climbing component 2 32 are both installed on the vehicle body 1, and alternating climbing component 1 31 and alternating climbing component 2 32 are located on the inner and outer sides of the vehicle body 1, respectively.

[0066] When this utility model is used, climbing stairs is achieved through the alternating climbing action of four sets of double alternating climbing components 3;

[0067] On a flat road, the vehicle body 1 is driven by the drive transmission assembly 2. When it is necessary to climb stairs, the drive transmission assembly 2 drives the dual alternating climbing assembly 3 to climb stairs or overcome obstacles relatively smoothly. At the same time, the two sets of drive transmission assemblies 2 can adjust the running direction of the vehicle body 1 through differential speed.

[0068] Example 2: In some embodiments, such as Figures 1-13 As shown, in a preferred embodiment of the present invention, both the alternating climbing component 1 31 and the alternating climbing component 2 32 are equipped with climbing wheels 33.

[0069] The vehicle body 1 includes a frame 11, four wheels 12, four axles 13, four axles 2 14, four axles 3 15 and four axles 4 16;

[0070] Four wheels 12, four axles 13, four axles 24, four axles 35 and four axles 46 are all rectangularly mounted on the frame 11. The central axes of every two axles 13 and two axles 35 are collinear, and axle 35 is located at the end of axle 13 near the center of the frame 11. The central axes of every two axles 24 and two axles 46 are collinear, and axle 24 is located at the end of axle 24 near the center of the frame 11.

[0071] Rotating shaft 2 14 and rotating shaft 4 16 are located above rotating shaft 1 13 and rotating shaft 3 15, and the angle between the common perpendicular of the central axis of rotating shaft 2 14 and the central axis of rotating shaft 1 13 and the horizontal plane is 60 degrees.

[0072] Each wheel 12 is fixedly connected to a pivot 13;

[0073] Wheel 12, axle one 13, and axle two 14 are all connected to alternating climbing component two 32;

[0074] Both pivot 3 15 and pivot 4 16 are connected to alternating climbing assembly 1 31;

[0075] The drive transmission assembly 2 is mounted on the bottom of the frame 11 and is connected to the pivot 13 located at the rear of the frame 11.

[0076] The drive transmission assembly 2 includes a drive assembly 21 and a transmission assembly 22;

[0077] The drive assembly 21 is mounted on the bottom of the frame 11. The drive assembly 21 is connected to the front and rear axles 13 and 3 on the same side via the transmission assembly 22. The axle 3 15 is connected to the axle 4 16 via the transmission assembly 22. The axle 13 and the axle 3 15 are connected via the transmission assembly 22.

[0078] The drive assembly 21 includes a motor 211 and a drive shaft 212;

[0079] The motor 211 is fixedly installed at the bottom of the frame 11. The output end of the motor 211 is fixedly connected to the drive shaft 212. The drive shaft 212 is rotatably connected to the bottom of the frame 11. The drive shaft 212 is connected to the front and rear rotating shaft 13 and the front and rear rotating shaft 3 15 on the same side through the transmission assembly 22.

[0080] The transmission assembly 22 includes two sets of transmission devices 1 221, two sets of transmission devices 222, two sets of transmission devices 3 223 and two sets of transmission devices 4 224. The drive shaft 212 is connected to the same side front and rear rotating shaft 13 via the two sets of transmission devices 3 223. The drive shaft 212 is connected to the same side front and rear rotating shaft 15 via the two sets of transmission devices 1 221. The rotating shaft 15 and the rotating shaft 4 16 are connected via the two sets of transmission devices 222. The rotating shaft 13 and the rotating shaft 2 14 are connected via the four sets of transmission devices 4 224.

[0081] The transmission device may employ, but is not limited to, pulley assemblies, sprockets, chains, and gears.

[0082] Alternating climbing component 1 31 includes rhombus turntable 1 311, rhombus turntable 2 312, rhombus turntable 3 313, rhombus turntable 4 314, Y-shaped link 1 315 and Y-shaped link 2 316;

[0083] Both rhomboid turntable 313 and rhomboid turntable 414 are fixedly connected to the rotating shaft 416, and rhomboid turntable 313 and rhomboid turntable 414 are arranged symmetrically.

[0084] Both rhomboid turntable 1 (311) and rhomboid turntable 2 (312) are fixedly connected to rotating shaft 3 (15), and rhomboid turntable 1 (311) and rhomboid turntable 2 (312) are arranged symmetrically.

[0085] Diamond turntable 1 (311) and diamond turntable 3 (313) are on the same side, diamond turntable 2 (312) and diamond turntable 4 (314) are on the same side, and diamond turntable 1 (311) is located on the side of diamond turntable 2 (312) closer to the center of frame 11.

[0086] The upper end of the rhomboid turntable 314 is hinged to the upper end of the Y-shaped connecting rod 315.

[0087] The rear end of the Y-shaped connecting rod 315 is hinged to the upper end of the rhomboid turntable 312.

[0088] The upper end of Y-shaped connecting rod 2 316 is hinged to the lower end of rhomboid turntable 3 313;

[0089] The lower rear end of Y-shaped connecting rod 316 is hinged to the lower end of rhomboid turntable 311.

[0090] Climbing wheels 33 are rotatably mounted on the lower front side of both Y-shaped connecting rod 1 (315) and Y-shaped connecting rod 2 (316) via one-way bearings.

[0091] The climbing wheel 33 uses a one-way bearing, which allows it to roll forward while preventing it from rolling backward when climbing stairs, thus providing forward friction.

[0092] Alternating climbing component 2 32 includes rhombus turntable 5 321, rhombus turntable 6 322, rhombus turntable 7 323, Y-shaped link 3 324 and Y-shaped link 4 325;

[0093] The rhombus turntable 5 321 is fixedly connected to the rotating shaft 1 13. The rhombus turntable 6 322 and the rhombus turntable 7 323 are symmetrically arranged and are both fixedly connected to the rotating shaft 2 14. The lower rear side of the Y-shaped connecting rod 3 324 is hinged to the side wall of the wheel 12, and the upper end of the Y-shaped connecting rod 3 324 is hinged to the rear end of the rhombus turntable 6 322.

[0094] The upper end of Y-shaped link 4 325 is hinged to the front end of rhomboid turntable 7 323, and the rear side of the lower end of Y-shaped link 4 325 is hinged to the front end of rhomboid turntable 5 321.

[0095] Climbing wheels 33 are rotatably mounted on the lower front side of Y-shaped link 324 and Y-shaped link 4 325 via one-way bearings.

[0096] The rhombus turntables 1 (311), 2 (312), 3 (313), 4 (314), 5 (321), 6 (322), and 7 (323) are all the same in shape and size.

[0097] The Y-shaped connecting rods 1 (315), 2 (316), 3 (324), and 4 (325) are all the same in shape and size.

[0098] When this utility model is in use, the mobile trolley achieves steering through the differential speed of the two motors 211.

[0099] When this utility model is used, the motor 211 is started, and the motor 211 drives the drive shaft 212 to rotate. The drive shaft 212 drives the rotating shaft 3 15 and the rotating shaft 13 to rotate through the transmission device 1 221 and the transmission device 3 223.

[0100] Rotating shaft 13 drives wheel 12 to rotate, and at the same time, rotating shaft 13 drives rotating shaft 24 to rotate through transmission device 4 224;

[0101] Rotating shaft 3 15 drives rotating shaft 4 16 to rotate via transmission device 222;

[0102] The first pivot 13 simultaneously drives the fifth rhombus turntable 321 to rotate, and the second pivot 14 drives the seventh rhombus turntable 323 and the sixth rhombus turntable 322 to rotate. The fifth rhombus turntable 321, the wheel 12, the seventh rhombus turntable 323, and the sixth rhombus turntable 322 together drive the fourth Y-shaped link 325 and the third Y-shaped link 324 to alternately paddle. The climbing wheel 33 located at the lower front of the third Y-shaped link 324 and the fourth Y-shaped link 325 alternately supports the frame 11.

[0103] Alternating climbing component 1 31 and alternating climbing component 2 32 have the same angular velocity movement and are angled with the frame 11 through the Y-shaped linkage mechanism, thereby producing a climbing effect when climbing stairs.

[0104] The rotating shaft 315 simultaneously drives the rhomboid turntable 1 311 and rhomboid turntable 2 312 to rotate. The rotating shaft 4 16 drives the rhomboid turntable 313 and rhomboid turntable 4 314 to rotate. The rhomboid turntable 313, rhomboid turntable 1 311, rhomboid turntable 313, and rhomboid turntable 4 314 together drive the Y-shaped connecting rod 2 316 and Y-shaped connecting rod 1 315 to move. The Y-shaped connecting rod 1 315 and Y-shaped connecting rod 2 316 move alternately and exhibit alternating paddle motion. The climbing wheel 33 located on the front side of the lower end of the Y-shaped connecting rod 1 315 and Y-shaped connecting rod 2 316 alternately supports the frame 11.

[0105] The frame 11 achieves stair climbing function under the alternating support of a total of sixteen climbing wheels 33 of four sets of alternating climbing components 1 31 and alternating climbing components 2 32. The alternating action of Y-shaped connecting rod 1 315 and Y-shaped connecting rod 2 316 and the alternating action of diamond turntable 4 314 and Y-shaped connecting rod 4 325 simulates the action of a person climbing stairs with alternating legs, thus achieving strong stair climbing performance. Two or more climbing wheels 33 lift the frame 11 each time, thus having strong stair climbing stability.

[0106] Example 3: In some embodiments, such as Figures 1-13 As shown, in a preferred embodiment of this utility model, the Y-shaped connecting rod is made of carbon fiber.

[0107] When this utility model is used, the Y-shaped connecting rod is made of carbon fiber, which has high strength, low density, and extremely light weight, and can effectively reduce the burden on the trolley.

[0108] Example 4: In some embodiments, such as Figures 1-13 As shown, in a preferred embodiment of this utility model, the climbing wheel 33 can be replaced with a foot component; thereby enabling the mobile vehicle to have better passability in muddy, sandy, snowy and other scenarios.

[0109] Example 5: In some embodiments, for example, to reduce the weight of the trolley, reduce the cost of the trolley, and reduce the complexity of the mechanism, the four sets of climbing components one (31) of this design can be removed, and only the four sets of climbing components two (32) can be retained, which can still achieve the functions of climbing stairs and overcoming obstacles.

[0110] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-traffic stair-climbing mobile vehicle, comprising a vehicle body (1) and two sets of drive transmission components (2), characterized in that: It also includes four sets of dual alternating climbing components (3); Four sets of double alternating climbing components (3) are installed in a rectangular shape on the vehicle body (1), and two sets of drive transmission components (2) are symmetrically installed on the vehicle body (1) and the two sets of drive transmission components (2) drive the left and right sides of the vehicle body (1) respectively. The dual alternating climbing assembly (3) includes alternating climbing assembly one (31) and alternating climbing assembly two (32). Alternating climbing component one (31) and alternating climbing component two (32) are both installed on the vehicle body (1), and alternating climbing component one (31) and alternating climbing component two (32) are located on the inner and outer sides of the vehicle body (1), respectively.

2. The high-traffic stair-climbing mobile trolley according to claim 1, characterized in that, Both alternating climbing component one (31) and alternating climbing component two (32) are equipped with climbing wheels (33).

3. The high-traffic stair-climbing mobile trolley according to claim 2, characterized in that, The vehicle body (1) includes a frame (11), four wheels (12), four axles (13), four axles (14), four axles (15) and four axles (16). The four wheels (12), four axles one (13), four axles two (14), four axles three (15) and four axles four (16) are all rectangularly mounted on the frame (11). The central axes of every two axles one (13) and two axles three (15) are collinear, and the axle three (15) is located at the end of axle one (13) near the center of the frame (11). The central axes of every two axles two (14) and two axles four (16) are collinear, and the axle two (14) is located at the end of axle two (14) near the center of the frame (11). Rotating shaft 2 (14) and rotating shaft 4 (16) are located above rotating shaft 1 (13) and rotating shaft 3 (15), and the angle between the common perpendicular of the central axis of rotating shaft 2 (14) and the central axis of rotating shaft 1 (13) and the horizontal plane is 60 degrees. Each wheel (12) is fixedly connected to a pivot (13); The wheel (12), axle one (13), and axle two (14) are all connected to the alternating climbing component two (32); Both the third (15) and the fourth (16) pivot are connected to the alternating climbing assembly one (31); The drive transmission assembly (2) is installed at the bottom of the frame (11) and is connected to the pivot (13) located at the rear of the frame (11).

4. The high-traffic stair-climbing mobile trolley according to claim 3, characterized in that, The drive transmission assembly (2) includes a drive assembly (21) and a transmission assembly (22); The drive assembly (21) is installed at the bottom of the frame (11). The drive assembly (21) is connected to the front and rear axles 1 (13) and 3 (15) on the same side via a transmission assembly (22). The axle 3 (15) is connected to the axle 4 (16) via a transmission assembly (22). The axle 1 (13) is connected to the axle 3 (15) via a transmission assembly (22).

5. The high-traffic stair-climbing mobile trolley according to claim 4, characterized in that, The drive assembly (21) includes a motor (211) and a drive shaft (212). The motor (211) is fixedly installed at the bottom of the frame (11). The output end of the motor (211) is fixedly connected to the drive shaft (212). The drive shaft (212) is rotatably connected to the bottom of the frame (11). The drive shaft (212) is connected to the front and rear rotating shaft one (13) and the front and rear rotating shaft three (15) on the same side through the transmission assembly (22). The transmission assembly (22) includes two sets of transmission devices one (221), two sets of transmission devices two (222), two sets of transmission devices three (223) and two sets of transmission devices four (224). The drive shaft (212) is connected to the front and rear rotating shaft one (13) on the same side through the two sets of transmission devices three (223). The drive shaft (212) is connected to the front and rear rotating shaft three (15) on the same side through the two sets of transmission devices one (221). The rotating shaft three (15) is connected to the rotating shaft four (16) through the transmission device two (222). The rotating shaft one (13) and the rotating shaft two (14) are connected through the transmission device four (224).

6. The high-traffic stair-climbing mobile trolley according to claim 5, characterized in that, The alternating climbing component 1 (31) includes rhombus turntable 1 (311), rhombus turntable 2 (312), rhombus turntable 3 (313), rhombus turntable 4 (314), Y-shaped link 1 (315) and Y-shaped link 2 (316). Both the third (313) and the fourth (314) rhombus turntables are fixedly connected to the fourth (16) rotating shaft, and the third (313) and the fourth (314) rhombus turntables are symmetrically arranged; Both rhomboid turntable one (311) and rhomboid turntable two (312) are fixedly connected to rotating shaft three (15), and rhomboid turntable one (311) and rhomboid turntable two (312) are symmetrically arranged; Diamond turntable 1 (311) and diamond turntable 3 (313) are on the same side, diamond turntable 2 (312) and diamond turntable 4 (314) are on the same side, and diamond turntable 1 (311) is located on the side of diamond turntable 2 (312) closer to the center of the frame (11); The upper end of the rhomboid turntable four (314) is hinged to the upper end of the Y-shaped connecting rod one (315); The rear side of the lower end of Y-shaped connecting rod one (315) is hinged to the upper end of rhomboid turntable two (312); The upper end of Y-shaped link 2 (316) is hinged to the lower end of rhomboid turntable 3 (313); The lower rear end of the Y-shaped connecting rod 2 (316) is hinged to the lower end of the rhomboid turntable 1 (311).

7. The high-traffic stair-climbing mobile trolley according to claim 6, characterized in that, The alternating climbing component two (32) includes rhombus turntable five (321), rhombus turntable six (322), rhombus turntable seven (323), Y-shaped link three (324) and Y-shaped link four (325). The rhomboid turntable five (321) is fixedly connected to the rotating shaft one (13), the rhomboid turntable six (322) and rhomboid turntable seven (323) are symmetrically arranged and are both fixedly connected to the rotating shaft two (14), the lower rear side of the Y-shaped connecting rod three (324) is hinged to the side wall of the wheel (12), and the upper end of the Y-shaped connecting rod three (324) is hinged to the rear end of the rhomboid turntable six (322); The upper end of Y-shaped link four (325) is hinged to the front end of rhomboid turntable seven (323), and the rear side of the lower end of Y-shaped link four (325) is hinged to the front end of rhomboid turntable five (321).

8. The high-traffic stair-climbing mobile trolley according to claim 7, characterized in that, The lower front ends of the Y-shaped link three (324) and Y-shaped link four (325) are each rotatably mounted with climbing wheels (33) via one-way bearings. Climbing wheels (33) are rotatably mounted on the front side of the lower end of Y-shaped link one (315) and Y-shaped link two (316) via one-way bearings.

9. The high-traffic stair-climbing mobile trolley according to claim 8, characterized in that, The rhombus-shaped turntables 1 (311), 2 (312), 3 (313), 4 (314), 5 (321), 6 (322), and 7 (323) are all the same in shape and size.

10. The high-traffic stair-climbing mobile trolley according to claim 9, characterized in that, The Y-shaped connecting rods one (315), two (316), three (324), and four (325) are all the same in shape and size.

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