Step climbing vehicle

Abstract

The utility model discloses a stair climbing vehicle which comprises a climbing vehicle body, a hanging bracket and a gravity center adjusting mechanism, and the climbing vehicle body can climb and walk along stairs; the hanging bracket is movably arranged on the climbing vehicle main body and is at least used for bearing goods; the gravity center adjusting mechanism is fixedly arranged on the climbing vehicle body, the gravity center adjusting mechanism is connected with the hanging bracket and used for applying variable acting force to the hanging bracket, and the hanging bracket can be driven by the resultant force of the gravity of the hanging bracket and the acting force to move. And the orthographic projection of the gravity center of the climbing vehicle is always kept on the climbing vehicle main body. Under the driving of the telescopic mechanism, the hanging bracket can be driven by the resultant force of the gravity and the acting force to move, so that the orthographic projection of the gravity center of the hanging bracket is always kept on the climbing vehicle main body, and the phenomenon that the hoisting gravity center shifts to cause rollover when people climb stairs or go down the stairs is prevented.

Description

Technical Field

[0001] The utility model relates to a transport vehicle, in particular to a step climbing vehicle, belonging to the field of transport vehicles. Background Art

[0002] When carrying items, people generally need to use a transport vehicle to save energy. However, this will cause inconvenience when encountering steps. It is necessary to apply an upward thrust or pull to overcome the gravity of the load and move it upward. Especially when transporting heavy objects upward through stairs, a transport vehicle cannot play a role, and it is necessary to rely on manpower to carry the objects, which wastes manpower.

[0003] In order to solve this problem, people invented a hand truck that can climb stairs, but this kind of truck still needs people to push the vehicle body upward to move upward. At the same time, because the truck is tilted when climbing the stairs, the center of gravity of the truck will shift, which can easily cause the truck to roll over. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a step climbing vehicle which can automatically climb stairs or go down stairs, save manpower, change the center of gravity position, and prevent rollover.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model includes:

[0006] The embodiment of the utility model provides a step climbing vehicle, comprising a climbing vehicle body, a hanger and a center of gravity adjustment mechanism;

[0007] The climbing vehicle body can climb and walk along the stairs;

[0008] The hanger is movably arranged on the climbing vehicle body and is at least used to carry cargo;

[0009] The center of gravity adjustment mechanism is fixedly arranged on the climbing vehicle body, and is connected to the hanger and is used to apply a variable force to the hanger. The hanger can move under the combined force of its own gravity and the force, so that the orthographic projection of its own center of gravity is always maintained on the climbing vehicle body.

[0010] Furthermore, the hanger includes a bottom frame and a hanger rod, the lower part of the hanger rod is fixedly connected to the bottom frame, the upper part of the hanger rod is movably connected to the bracket, and the bottom frame remains horizontal under the self-weight of the hanger.

[0011] Furthermore, the center of gravity adjustment mechanism includes a bracket and a telescopic mechanism, the bracket is at least used to support the hanger, one end of the bracket is hinged to the vehicle body, the other end of the bracket is hinged to one end of the telescopic mechanism, and the other end of the telescopic mechanism is hinged to the climbing vehicle body.

[0012] Furthermore, the climbing vehicle body includes a vehicle body, climbing wheels are provided on both sides of the vehicle body, the climbing wheels are rotatably connected to the vehicle body, the climbing wheels can at least drive the vehicle body to climb stairs and / or go down stairs, each of the climbing wheels is rotatably connected to a plurality of walking wheels, when climbing stairs, the walking wheels rotate with the climbing wheels, so that the plurality of walking wheels contact the stairs in turn, and a power mechanism is also provided on the vehicle body, the power mechanism is connected to the climbing wheels, and the climbing wheels rotate under the drive of the power mechanism, which can drive the vehicle body to climb stairs or go down stairs.

[0013] Furthermore, a sensing mechanism is provided on one side of the hanger, and the sensing mechanism can at least sense that the hanger swings to a certain angle.

[0014] Furthermore, a detection mechanism for detecting whether there are stairs is arranged in front and / or at the rear of the vehicle body.

[0015] Furthermore, the climbing wheel comprises a support frame, a plurality of the walking wheels are arranged on the support frame around the center of the support frame, and the walking wheels are rotatably connected to the support frame.

[0016] Furthermore, a back-stop mechanism is arranged on the support frame, and the back-stop mechanism is used to prevent the climbing vehicle from backing up during the process of climbing the ladder.

[0017] Furthermore, the anti-backlash mechanism includes a ratchet arranged on one side of the walking wheel, each walking wheel corresponds to a ratchet, and the ratchet rotates synchronously with the corresponding walking wheel, a anti-backlash plate is arranged on one side of the ratchet, and the anti-backlash plate is rotatably connected to the support frame, and the anti-backlash mechanism also includes a driving mechanism for driving the anti-backlash plate to rotate relative to the support frame, and under the drive of the driving mechanism, the anti-backlash plate extends into the groove of the ratchet wheel to brake the walking wheel.

[0018] Furthermore, the driving mechanism includes a turntable, a plurality of waist-shaped grooves are provided on the turntable, and a positioning pin is provided in each of the waist-shaped grooves. When the turntable rotates, the waist-shaped grooves rotate along the positioning pin. A connecting rope is provided on the turntable, and each connecting rope corresponds to a stop plate. One end of the connecting rope is fixed on the turntable, and the other end is fixedly connected to the stop plate. The driving mechanism also includes an elastic component, which pops the stop plate open when there is no pulling force of the connecting rope on the stop plate.

[0019] Furthermore, a stop mechanism is provided on the support frame, and the stop mechanism includes a mounting seat fixedly connected to the turntable, and a stop plate is fixedly connected to the mounting seat. The stop mechanism also includes a baffle fixedly connected to the support frame, and when the turntable rotates to a specified position, the baffle blocks the stop plate to prevent the turntable from continuing to rotate.

[0020] Furthermore, the upper part of the boom is rotatably connected to the bracket via a supporting mechanism, the supporting mechanism includes a supporting rod and a supporting seat, the supporting seat is fixedly connected to the bracket, the supporting rod includes a first supporting section and a second supporting section that are fixedly connected, the first supporting section is fixedly connected to the supporting seat, the second supporting section is connected to the upper part of the boom, and the upper part of the boom can rotate relative to the second supporting section.

[0021] Furthermore, a power source is arranged on the vehicle body; and the power source is electrically connected to the power mechanism.

[0022] Furthermore, a handle is provided on the front side of the vehicle body.

[0023] Compared with the prior art, the advantages of the utility model include:

[0024] 1) In the embodiment of the utility model, a stair climbing vehicle is provided. The climbing wheel can drive the running wheel to rotate under the drive of the power mechanism, thereby achieving automatic climbing or descending of stairs, which greatly saves manpower;

[0025] 2) The step climbing vehicle provided in the embodiment of the utility model can not only climb stairs but also travel on a plane, and can realize free switching;

[0026] 3) A stair climbing vehicle provided by an embodiment of the utility model has a telescopic mechanism on one side of the hoisting device. Under the drive of the telescopic mechanism, the hanger can move under the combined force of its own gravity and the acting force, so that the orthographic projection of its own center of gravity is always maintained on the main body of the climbing vehicle, thereby preventing the center of gravity of the hoisting device from shifting when climbing or descending stairs and causing the vehicle to roll over;

[0027] 4) A step climbing vehicle provided in an embodiment of the utility model is provided with a retreat-stopping mechanism, which can prevent the step climbing vehicle from retreating and causing rollover during the process of climbing the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of a step climbing vehicle provided in a typical implementation case of the utility model when climbing stairs;

[0030] Figure 2 It is a schematic diagram of the overall structure of a step climbing vehicle provided in a typical implementation case of the utility model;

[0031] Figure 3 It is a schematic diagram of the connection between the hoisting and the bracket provided in a typical implementation case of the utility model;

[0032] Figure 4 It is a structural schematic diagram of a climbing wheel provided in a typical implementation case of the utility model;

[0033] Figure 5 It is a structural schematic diagram of a stop mechanism provided in a typical implementation case of the utility model;

[0034] Explanation of the accompanying drawings: 1. Stairs; 2. Vehicle body; 3. Power mechanism; 4. Walking wheel; 5. Bracket; 6. Hanger; 7. Climbing wheel; 8. Support mechanism; 9. Telescopic mechanism; 10. Power supply; 11. Handle; 61. Bottom frame; 62. Hanging rod; 81. Support seat; 82. Support section one; 83. Support section two; 71. Support frame; 721. Ratchet; 722. Stop plate; 723. Turntable; 724. Waist-shaped groove; 725. Positioning pin; 73. Stop mechanism; 731. Mounting seat; 732. Stop plate; 733. Baffle. DETAILED DESCRIPTION

[0035] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the utility model after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0036] like Figure 2 As shown, a step climbing vehicle provided by the utility model comprises a climbing vehicle body, a hanger and a center of gravity adjusting mechanism.

[0037] The climbing vehicle body can climb and walk along stairs. Specifically, the climbing vehicle body includes a vehicle body, and climbing wheels are arranged on both sides of the vehicle body. The climbing wheels 7 are symmetrically arranged in two groups along the center of the vehicle body 2, and each group is provided with at least two climbing wheels 7. Each group can be provided with two, three or more climbing wheels 7, and the number of climbing wheels 7 can be set according to the length of the vehicle body 2. The climbing wheels are rotatably connected to the vehicle body, and the climbing wheels can at least drive the vehicle body to climb stairs (such as Figure 1 As shown in the figure, when climbing stairs and / or going down stairs, each of the climbing wheels is rotatably connected to a plurality of running wheels, and when climbing stairs, the running wheels rotate with the climbing wheels, so that the plurality of running wheels contact the stairs in sequence.

[0038] The vehicle body is also provided with a power mechanism, which is connected to the climbing wheel. When the climbing wheel rotates under the drive of the power mechanism, the vehicle body can be driven to climb stairs or go down stairs. Each climbing wheel 7 may correspond to one power mechanism 3, or two symmetrically arranged climbing wheels 7 may correspond to one power mechanism 3. In this embodiment, in order to enable the two symmetrically arranged climbing wheels 7 to move synchronously, the two symmetrically arranged climbing wheels 7 use the same power mechanism 3. Specifically, the power mechanism 3 includes a main shaft, which is connected to the two climbing wheels 7 at both ends, and the two climbing wheels 7 at both ends can rotate with the main shaft. The outer surfaces of the two ends of the main shaft are connected to a first sprocket, and the outer surface of the first sprocket is meshed with a chain, and the inner surface of the chain away from the first sprocket is meshed with a second sprocket, and the second sprocket is connected to the driving shaft of the motor. The motor can also be directly connected to the connecting shaft through a coupling. The present application does not limit the power mechanism 3, as long as it can drive the climbing wheel 7 to rotate.

[0039] The hanger is movably arranged on the climbing vehicle body and is at least used to carry goods. For example, a cargo box can be installed on the hanger to load goods, and a chair can be installed to allow people to sit. The hanger 6 is connected to the bracket 5 through a supporting mechanism 8, and the hanger 6 can swing relative to the vehicle body 2. The bracket 5 is at least used to support the hanger 6, one end of the bracket 5 is hinged to the vehicle body 2, and the other end of the bracket 5 is hinged to one end of a telescopic mechanism 9, and the other end of the telescopic mechanism 9 is hinged to the vehicle body 2.

[0040] The center-of-gravity adjustment mechanism is fixedly arranged on the climbing vehicle body, and is connected to the hanger, and is used to apply a variable force to the hanger. The hanger can move under the combined force of its own gravity and the force, so that the positive projection of its own center of gravity is always maintained on the climbing vehicle body. Specifically, the center-of-gravity adjustment mechanism includes a bracket and a telescopic mechanism, and the bracket is at least used to support the hanger, one end of the bracket is hinged to the vehicle body, the other end of the bracket is hinged to one end of the telescopic mechanism, and the other end of the telescopic mechanism is hinged to the climbing vehicle body. Driven by the telescopic mechanism 9, the center of gravity of the hanger 6 on the vehicle body 2 is shifted. Specifically, as Figure 3As shown, the hanger 6 includes a bottom frame 61 and a hanger rod 62, the lower part of the hanger rod 62 is fixedly connected to the bottom frame 61, in order to prevent the transported object from tilting during the process of going up or down the stairs 1, the bottom frame 61 needs to be kept in a horizontal state, so the upper part of the hanger rod 62 needs to be able to rotate relative to the support mechanism 8. The upper and lower parts of the hanger rod 62 can be an integral structure, for example, the hanger rod 62 is a rod-shaped structure, the rod-shaped structure is bent into an arc shape from the center position in the length direction, the two ends of the rod-shaped structure are fixed on the vehicle body 2, the support mechanism is arranged in the arc groove at the bending position, and the support mechanism rotates relative to the arc groove; the hanger rod 62 can also be a structure in which the upper and lower parts are welded together, for example: the hanger rod 62 includes a ring, the two sides of the ring are symmetrically fixedly connected with the connecting structure, the end of the connecting structure away from the ring is connected to the vehicle body 2, the support mechanism is arranged in the ring, and the ring can rotate relative to the supporting mechanism.

[0041] Specifically, Figure 3 As shown, the support mechanism 8 includes a support rod and a support seat 81, the support seat 81 is fixedly connected to the bracket 5, the support rod includes a fixedly connected support section 1 82 and a support section 2 83, the support section 1 82 is fixedly connected to the support seat 81, the support section 2 83 is connected to the upper part of the suspension rod 62, and the upper part of the suspension rod 62 can rotate relative to the support section 2 83. The support section 1 82 can be a cylinder or a cuboid, for example, the support section 1 82 is a cylinder, a circular through hole is provided on the support seat 81, the support section 1 82 extends into the support seat 81 and is fixed in the support seat 81; for another example, the support section 82 is a cuboid, the support section 82 can be directly fixed on the support seat 81, or a through hole consistent with the cross-sectional shape of the cuboid can be provided in the support seat 81, the support section 82 extends into the through hole and is fixed in the through hole.

[0042] In some embodiments, a sensing mechanism is provided on one side of the hanger 6, and the sensing mechanism can at least sense that the hanger 6 swings to a certain angle. The sensing mechanism can be a limit switch or an angle sensor.

[0043] Specifically, when the sensing mechanism is a limit switch, the limit switch is set on both sides of the hoisting swing direction. The specific position of the limit switch needs to be set according to the angle allowed for the hoisting swing. For example, if the angle allowed for the hoisting swing is small, the limit switch needs to be set in a place where it can be touched by the small swing angle of the hoisting. When the hoisting touches the limit switch during the swinging process, a signal is sent to the control mechanism, and the control mechanism controls the telescopic mechanism 9 to extend or retract, so that the swing amplitude of the hoisting is reduced. The limit switch can be set in the relative front or rear of the support mechanism. The front here refers to the forward direction of the vehicle body 2. It is preferred to set the limit switch in front and behind the support mechanism 8.

[0044] Specifically, when the sensing mechanism is an angle sensor, the threshold of the angle sensor needs to be set in advance in the control mechanism. When the sensor detects that the swing angle of the suspension rod 62 exceeds the threshold, a signal is sent to the control mechanism, and the control mechanism controls the extension mechanism to extend or retract, so that the swing angle of the suspension rod 62 is reduced. It is necessary to ensure that the laser emitted by the angle sensor is horizontal, so that the inclination angle of the suspension bracket can be accurately determined, so as to more accurately ensure that the orthographic projection of the suspension bracket is always kept on the main body of the climbing vehicle.

[0045] In some embodiments, a detection mechanism for detecting whether there is a staircase 1 is provided in front and / or behind the vehicle body 2, and the detection mechanism includes a sensor, and the sensor may be a laser sensor or an ultrasonic sensor. When the sensor detects the staircase 1, a signal is sent to the control mechanism, and the control mechanism controls the power mechanism 3 to start the action, and the power mechanism 3 drives the climbing wheel 7 to rotate, thereby driving the vehicle body 2 to climb the staircase 1.

[0046] Specifically, Figure 4 As shown, the climbing wheel 7 includes a support frame 71, and a plurality of the walking wheels 4 are arranged on the support frame 71 around the center of the support frame 71, and the walking wheels 4 are rotatably connected to the support frame 71. When climbing the stairs 1, the climbing wheel 7 rotates, and the walking wheels 4 rotate along with the bracket 5, and the plurality of walking wheels 4 contact the stairs 1 in sequence to achieve a climbing effect. When the climbing vehicle walks on a flat road, the climbing wheel 7 does not rotate, and the walking wheels 4 rotate relative to their center and contact the ground to achieve a flat walking effect.

[0047] The support frame 71 is provided with a backstop mechanism, which is used to prevent the climbing vehicle from backing up during the process of climbing the ladder. Specifically, the backstop mechanism includes a ratchet 721 provided on one side of the walking wheel 4, each walking wheel 4 corresponds to a ratchet 721, and the ratchet 721 rotates synchronously with the corresponding walking wheel 4, specifically, the ratchet 721 and the walking wheel 4 are connected to the same connecting shaft, and a backstop sheet 722 is provided on one side of the ratchet 721, and the backstop sheet 722 is rotatably connected to the support frame 71, and the backstop mechanism also includes a driving mechanism for driving the backstop sheet 722 to rotate relative to the support frame 71, and under the drive of the driving mechanism, the backstop sheet 722 extends into the groove of the ratchet 721 to brake the walking wheel 4, and when backstop is not needed, the backstop sheet 722 is away from the ratchet 721 and does not extend into the groove of the ratchet 721.

[0048] Specifically, Figure 4As shown, the driving mechanism includes a turntable 723, on which a plurality of waist-shaped grooves 724 are provided, and each of the waist-shaped grooves 724 is provided with a positioning pin 725, and the positioning pin 725 includes a first part and a second part that are fixedly connected, the diameter of the first part is larger than the diameter of the second part, so as to prevent the turntable 723 from approaching the support frame 71, the first part is fixed on the support frame 71, and the second part extends into the waist-shaped groove 724, and the waist-shaped groove 724 rotates along the second part when the turntable 723 rotates, and a through hole is provided at one end of the second part away from the first part, and the through hole is provided at a position where the second part protrudes from the waist-shaped groove 724, and a connecting rope is provided on the turntable, each connecting rope corresponds to a stop plate, one end of the connecting rope is fixed on the turntable, and the other end is fixedly connected to the stop plate, and the driving mechanism also includes an elastic component, which pops the stop plate open when there is no pulling force of the connecting rope on the stop plate. When the climbing vehicle needs to brake, the turntable is rotated, and one end of the connecting rope pulls the stop plate as the turntable rotates, so that one end of the stop plate extends into the groove of the ratchet wheel, and the climbing vehicle brakes; when the climbing vehicle does not need to brake, the turntable is rotated in the opposite direction, so that the connecting rope is not tightened, and the elastic component bounces the stop plate, so that the stop plate is away from the groove of the ratchet wheel, and the climbing vehicle is in a movable state. The elastic component can be a spring or a spring.

[0049] The support frame 71 is provided with a stop mechanism 73. Figure 5 As shown, the stop mechanism 73 includes a mounting seat 731 fixedly connected to the rotating disk 723, a stop piece 732 fixedly connected to the mounting seat 731, and a baffle 733 fixedly connected to the support frame 71. When the rotating disk 723 rotates to a specified position, the baffle 733 blocks the stop piece 732 to prevent the rotating disk 723 from continuing to rotate. The stop mechanism is used in conjunction with the anti-retraction mechanism.

[0050] In some embodiments, a power source 10 is provided on the vehicle body 2; the power source 10 is electrically connected to the power mechanism 3, and the power source 10 provides electricity to the power mechanism 3. The step climbing vehicle further includes a control mechanism, which includes a control panel and control buttons.

[0051] In some embodiments, a handle 11 is disposed on the front side of the vehicle body 2 . The handle 11 is disposed on the front side of the vehicle body 2 for an operator to pull the climbing vehicle on the front side of the vehicle body 2 .

[0052] It should be understood that the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A step climbing vehicle, characterized in that: include: A climbing vehicle body, wherein the climbing vehicle body is capable of climbing and walking along stairs; A hanger, the hanger is movably arranged on the climbing vehicle body and is at least used to carry cargo; A center of gravity adjustment mechanism, wherein the center of gravity adjustment mechanism is fixedly arranged on the climbing vehicle body, the center of gravity adjustment mechanism is connected to the hanger and is used to apply a variable force to the hanger, the hanger can move under the combined force of its own gravity and the force, so that the orthographic projection of its own center of gravity is always maintained on the climbing vehicle body.

2. A step climbing vehicle according to claim 1, characterized in that: The center of gravity adjustment mechanism includes a bracket and a telescopic mechanism, the bracket is at least used to support the hanger, one end of the bracket is hinged to the vehicle body, the other end of the bracket is hinged to one end of the telescopic mechanism, and the other end of the telescopic mechanism is hinged to the climbing vehicle body.

3. A step climbing vehicle according to claim 2, characterized in that: The hanger comprises a bottom frame and a hanger rod, the lower part of the hanger rod is fixedly connected to the bottom frame, the upper part of the hanger rod is movably connected to the bracket, and the bottom frame remains horizontal under the self-weight of the hanger.

4. A step climbing vehicle according to claim 1, characterized in that: The climbing vehicle body comprises a vehicle body, climbing wheels are arranged on both sides of the vehicle body, the climbing wheels are rotatably connected to the vehicle body, the climbing wheels can at least drive the vehicle body to climb stairs and / or go down stairs, each of the climbing wheels is rotatably connected to a plurality of walking wheels, when climbing stairs, the walking wheels rotate with the climbing wheels, so that the plurality of walking wheels contact the stairs in sequence, and a power mechanism is also arranged on the vehicle body, the power mechanism is connected to the climbing wheels, and the climbing wheels rotate under the drive of the power mechanism, so as to drive the vehicle body to climb stairs or go down stairs.

5. A step climbing vehicle according to claim 1, characterized in that: A sensing mechanism is provided on one side of the hanger, and the sensing mechanism can at least sense that the hanger swings to a certain angle.

6. A step climbing vehicle according to claim 2, characterized in that: A detection mechanism for detecting whether there are stairs is arranged in front of and / or at the rear of the vehicle body.

7. A step climbing vehicle according to claim 4, characterized in that: The climbing wheel comprises a support frame, a plurality of walking wheels are arranged on the support frame around the center of the support frame, and the walking wheels are rotatably connected to the support frame.

8. A step climbing vehicle according to claim 7, characterized in that: The support frame is provided with a back-stop mechanism, which is used to prevent the climbing vehicle from backing off during the process of climbing the ladder.

9. A step climbing vehicle according to claim 8, characterized in that: The anti-backward mechanism includes a ratchet arranged on one side of the walking wheel, each walking wheel corresponds to a ratchet, and the ratchet rotates synchronously with the corresponding walking wheel. A anti-backward plate is arranged on one side of the ratchet, and the anti-backward plate is rotatably connected to the support frame. The anti-backward mechanism also includes a driving mechanism for driving the anti-backward plate to rotate relative to the support frame. Under the drive of the driving mechanism, the anti-backward plate extends into the groove of the ratchet wheel to brake the walking wheel.

10. A step climbing vehicle according to claim 9, characterized in that: The driving mechanism includes a turntable, which is provided with a plurality of waist-shaped grooves, each of which is provided with a positioning pin. When the turntable rotates, the waist-shaped groove rotates along the positioning pin. A connecting rope is provided on the turntable, and each connecting rope corresponds to a stop plate. One end of the connecting rope is fixed on the turntable, and the other end is fixedly connected to the stop plate. The driving mechanism also includes an elastic component, which pops the stop plate open when there is no pulling force of the connecting rope on the stop plate.

11. A step climbing vehicle according to claim 10, characterized in that: The support frame is provided with a stop mechanism, which includes a mounting seat fixedly connected to the turntable, a stop plate fixedly connected to the mounting seat, and a baffle fixedly connected to the support frame. When the turntable rotates to a specified position, the baffle blocks the stop plate to prevent the turntable from continuing to rotate.

12. A step climbing vehicle according to claim 3, characterized in that: The upper part of the suspension rod is rotatably connected to the bracket through a supporting mechanism, the supporting mechanism includes a supporting rod and a supporting seat, the supporting seat is fixedly connected to the bracket, the supporting rod includes a first supporting section and a second supporting section that are fixedly connected, the first supporting section is fixedly connected to the supporting seat, the second supporting section is connected to the upper part of the suspension rod, and the upper part of the suspension rod can rotate relative to the second supporting section.

13. A step climbing vehicle according to claim 4, characterized in that: The vehicle body is provided with a power source, which is electrically connected to the power mechanism.

14. A step climbing vehicle according to claim 4, characterized in that: A handle is provided on the front side of the vehicle body.

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