Balanced wheel structure and vehicle

By introducing an adjustment component into the balance wheel structure, the directional sliding of the wheel seat relative to the fixed frame is achieved, solving the problem of cumbersome height adjustment in the existing technology and improving the operational stability and efficiency of the transport vehicle.

CN224476794UActive Publication Date: 2026-07-10SANY ROBOT (CHANGSHA) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANY ROBOT (CHANGSHA) CO LTD
Filing Date
2025-09-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the existing technology, the height adjustment operation of the balance wheel structure of the transport vehicle is cumbersome and inefficient, requiring the disassembly of the entire wheel frame or wheel body to achieve different height adjustments.

Method used

By adjusting the components, the wheel seat slides relative to the fixed frame in a directional manner, and the wheel seat drives the wheel frame to move synchronously, thereby raising or lowering the height of the wheel body and avoiding disassembly.

Benefits of technology

The height adjustment process of the balance wheel structure is simplified, improving operational efficiency and ensuring stable vehicle operation under different working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a balanced wheel structure and a vehicle, and relates to the technical field of balanced wheels. The balanced wheel structure comprises a wheel body, a wheel frame connected with the wheel body, a wheel seat, a fixed frame, and an adjusting assembly. The wheel frame is rotationally arranged on the wheel seat. The wheel seat is slidingly arranged in the fixed frame. The adjusting assembly passes through the fixed frame and is press-connected with the wheel seat. The adjusting assembly is configured to rotate under the action of an external force to drive the wheel seat to slide in a specific direction relative to the fixed frame to adjust the height of the wheel body. The adjusting assembly is rotated to push the wheel seat to slide in a specific direction relative to the fixed frame. The wheel seat drives the wheel frame to move synchronously, and the wheel body is raised or lowered, so that the height position of the wheel body can be adjusted without disassembling the wheel body, and the operation is simple and efficient.
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Description

Technical Field

[0001] This application relates to the field of balance wheel technology, and more particularly to a balance wheel structure and vehicle. Background Technology

[0002] In warehousing environments, handling vehicles (such as forklifts and AGVs) need to operate stably on goods at different heights, uneven ground, or complex terrain. As an important supporting component of the vehicle, the balance wheel structure needs to be height-adjustable to adapt to different working conditions in order to ensure the stability of the vehicle, reduce the impact of vibration on the goods, and extend the service life of the equipment.

[0003] In the prior art, the balance wheel structure of the transport vehicle usually adopts a fixed height structure. Its height adjustment requires disassembling the original balance wheel structure. For example, the balance wheel structure includes a wheel frame and a wheel body. The wheel frame is rigidly connected to the vehicle body by welding or bolts. When adjusting, the entire wheel frame or wheel body needs to be disassembled to achieve the balance wheel structure adjustment of different heights.

[0004] However, adjusting the height of the balance wheel structure using the above methods is cumbersome and inefficient. Utility Model Content

[0005] This application provides a balance wheel structure and vehicle to solve the problems of cumbersome operation and low efficiency when adjusting the height of the balance wheel structure. This application uses an adjustment component to push the wheel seat to slide relative to the fixed frame in a directional manner, and the wheel seat drives the wheel frame to move synchronously, thereby raising or lowering the wheel body and adjusting the height position of the wheel body.

[0006] This application provides a balance wheel structure, including: a wheel body; a wheel frame, the wheel body being connected to the wheel frame; a wheel seat, the wheel frame being rotatably mounted on the wheel seat; a fixed frame, the wheel seat being slidably mounted within the fixed frame; and an adjustment component, the adjustment component partially passing through the fixed frame and pressing against the wheel seat; the adjustment component is configured to rotate under the action of an external force to drive the wheel seat to slide relative to the fixed frame in a directional manner to adjust the height of the wheel body.

[0007] In one possible implementation, the balance wheel structure in this application embodiment has at least a portion of the wheel seat inserted into the fixed frame, one of the wheel seat and the fixed frame having at least one first sliding part, and the other of the wheel seat and the fixed frame having at least one second sliding part, with the first sliding part and the second sliding part being slidably connected in a one-to-one correspondence.

[0008] In one possible implementation, the balance wheel structure in this application embodiment has a first sliding part as a guide rail and a second sliding part as a sliding groove.

[0009] In one possible implementation, the balance wheel structure in this application embodiment further includes a rotating component, which is rotatably mounted on the wheel frame and connected to the wheel seat.

[0010] In one possible implementation, the balance wheel structure in this application embodiment includes an adjusting component and an adjusting baffle. The adjusting baffle is connected to the wheel seat, and one end of the adjusting component passes through the fixed frame and is connected to the adjusting baffle. The adjusting component is configured to rotate under the action of an external force to drive the adjusting baffle to make the wheel seat slide relative to the fixed frame.

[0011] In one possible implementation, the balance wheel structure in this application embodiment has a connecting platform at one end of the wheel seat, and the adjusting baffle is pressed against the connecting platform.

[0012] In one possible implementation, the balance wheel structure in this application embodiment further includes a limiting member, a first limiting hole on the fixing frame, a second limiting hole on the wheel seat, and the limiting member sequentially passing through the first limiting hole and the second limiting hole from the outside of the fixing frame.

[0013] In one possible implementation, the balance wheel structure in this application embodiment includes a wheel frame comprising a first frame and a second frame, the first frame being connected to the second frame, the first frame being rotatably connected to the wheel seat, and the second frame being connected to the wheel.

[0014] In one possible implementation, the balance wheel structure in this application embodiment further includes an elastic element, one end of which is connected to the first frame and the other end of which is connected to the second frame.

[0015] In addition, this application also improves a vehicle, including a vehicle body and a balance wheel structure of any of the above embodiments disposed on the vehicle body.

[0016] This application provides a balance wheel structure and vehicle. The balance wheel structure includes: a wheel body; a wheel frame, the wheel body being connected to the wheel frame; a wheel seat, the wheel frame being rotatably mounted on the wheel seat; a fixed frame, the wheel seat being slidably mounted within the fixed frame; and an adjustment component, partly passing through the fixed frame and pressing against the wheel seat. The adjustment component is configured to rotate under external force to drive the wheel seat to slide relative to the wheel seat, thereby adjusting the height of the wheel body. When the wheel body needs to turn, the wheel frame rotates around the axis (vertical direction) of the wheel seat, achieving the turning of the wheel body. This application, by rotating the adjustment component, pushes the wheel seat to slide directionally relative to the fixed frame, and the wheel seat drives the wheel frame to move synchronously, thereby raising or lowering the wheel body. This allows for adjustment of the wheel body's height without disassembling the wheel body, simplifying operation and improving efficiency. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the balance wheel structure provided in an embodiment of this application;

[0019] Figure 2 Cross-sectional view of the balance wheel structure provided in the embodiments of this application. Figure 1 ;

[0020] Figure 3 Cross-sectional view of the balance wheel structure provided in the embodiments of this application. Figure 2 ;

[0021] Figure 4 A schematic diagram of the wheel seat in the balance wheel structure provided for the implementation of this application;

[0022] Figure 5 This is a schematic diagram of the fixing frame in the balance wheel structure provided in the embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100-Wheel body; 200-Wheel frame; 210-First frame; 211-Receiving cavity; 220-Second frame; 221-Wheel frame body; 222-Connecting shaft; 300-Wheel seat; 301-Mounting cavity; 302-Connecting platform; 400-Fixing frame; 410-First sliding part; 420-Second sliding part; 500-Adjusting assembly; 510-Adjusting component; 511-Adjusting nut; 520-Adjusting baffle; 600-Rotating component; 700-Limiting component; 701-First limiting hole; 702-Second limiting hole; 800-Elastic component.

[0025] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0027] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and are not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0028] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In warehousing environments, handling vehicles (such as forklifts and AGVs) need to operate stably on goods at different heights, uneven ground, or complex terrain. As an important supporting component of the vehicle, the balance wheel structure needs to be height-adjustable to adapt to different working conditions in order to ensure the stability of the vehicle, reduce the impact of vibration on the goods, and extend the service life of the equipment.

[0031] In existing technologies, the balance wheel structure of a transport vehicle typically employs a fixed-height design. Adjusting its height requires disassembling the existing balance wheel structure. For example, the balance wheel structure may consist of a wheel frame and a wheel body, with the wheel frame rigidly connected to the vehicle body via welding or bolts. Adjustment necessitates disassembling the entire wheel frame or wheel body to achieve different height adjustments. However, this method of adjusting the balance wheel structure's height is cumbersome and inefficient.

[0032] In view of this, this application provides a balance wheel structure and a vehicle. The balance wheel structure includes: a wheel body; a wheel frame, the wheel body being connected to the wheel frame; a wheel seat, the wheel frame being rotatably mounted on the wheel seat; a fixed frame, the wheel seat being slidably mounted within the fixed frame; and an adjustment component, a portion of which passes through the fixed frame and presses against the wheel seat. The adjustment component is configured to rotate under the action of an external force to drive the wheel seat to slide directionally relative to the fixed frame, thereby adjusting the height of the wheel body. When the wheel body needs to turn, the wheel frame rotates around the axis (vertical direction) of the wheel seat to achieve wheel body turning. When the wheel body height needs to be adjusted, the adjustment component is rotated under the action of an external force, the adjustment component pushes the wheel seat to slide directionally relative to the fixed frame, the wheel seat drives the wheel frame to move synchronously, thereby causing the wheel body to rise or fall, thus adjusting the height position of the wheel body.

[0033] This application provides a balance wheel structure, combined with Figure 1 , Figure 2 , Figure 4 , Figure 5 The device includes: a wheel body 100; a wheel frame 200, the wheel body 100 being connected to the wheel frame 200; a wheel seat 300, the wheel frame 200 being rotatably mounted on the wheel seat 300; a fixed frame 400, the wheel seat 300 being slidably mounted within the fixed frame 400; and an adjusting component 500, a portion of which passes through the fixed frame 400 and is pressed against the wheel seat 300. The adjusting component 500 is configured to rotate under the action of an external force to drive the wheel seat 300 to slide relative to the fixed frame 400 in a directional manner, thereby adjusting the height of the wheel body 100.

[0034] The wheel body 100 is a roller, which is connected to the wheel frame 200 through the connecting shaft 222. The wheel body 100 can rotate freely around the connecting shaft 222.

[0035] The wheel frame 200 can rotate 360 ​​degrees around the axis of the wheel seat 300, thus not limiting the rotation range of the wheel body 100.

[0036] The wheel seat 300 has a mounting cavity 301, and the wheel frame 200 is partially inserted into the mounting cavity 301. At least one rotating member 600 is sleeved on the outer periphery of the wheel frame 200. The rotating member 600 is connected to the wheel seat 300, and the wheel frame 200 can be rotated relative to the wheel seat 300 through the rotating member 600.

[0037] The fixed frame 400 is fixed to the crossbeam at the bottom of the trolley by bolts. The lower part of the wheel seat 300 is inserted into the inner cavity of the fixed frame 400 in the vertical direction. The lower part of the wheel frame 200 is connected to the wheel body 100, and the upper part is inserted into the mounting cavity 301 of the wheel seat 300. The adjustment component 500 is vertically arranged above the fixed frame 400, and part of it passes through the top of the fixed frame 400 and is pressed against the upper end face of the wheel seat 300.

[0038] When the wheel 100 needs to turn, the wheel 100 is subjected to lateral friction from the ground, causing the wheel frame 200 to rotate 360° around the axis (vertical direction) of the wheel seat 300. For example, the inner ring of the rotating component 600 rotates with the wheel frame 200, while the outer ring is fixed on the wheel seat 300, reducing frictional resistance. When the height of the wheel 100 needs to be adjusted, the adjusting component 500 is rotated under the action of external force. The adjusting component 500 pushes the wheel seat 300 to slide relative to the fixed frame 400. The wheel seat 300 drives the wheel frame 200 to move synchronously, thereby raising or lowering the wheel 100, thus adjusting the height position of the wheel 100.

[0039] In some possible implementations, the balance wheel structure used in this application, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5At least a portion of the wheel seat 300 is inserted into the fixing frame 400. One of the wheel seat 300 and the fixing frame 400 has at least one first sliding part 410, and the other of the wheel seat 300 and the fixing frame 400 has at least one second sliding part 420. The first sliding part 410 and the second sliding part 420 are slidably connected in a one-to-one correspondence.

[0040] The mounting bracket 400 can be screwed or welded to the base edge of the vehicle body. The upper part of the wheel seat 300 is inserted vertically into the inner cavity of the mounting bracket 400. The lower part of the wheel frame 200 is connected to the wheel body 100, and the upper part is rotatably connected to the wheel seat 300.

[0041] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The inner circumferential side of the fixing frame 400 is integrally formed with a plurality of first sliding parts 410. The first sliding parts 410 are elongated convex strips extending along the z direction. There are two first sliding parts 410, which are distributed at intervals of 180 degrees or 120 degrees, etc. This application does not limit this. The outer circumferential side of the wheel seat 300 is provided with a plurality of second sliding parts 420. For example, the second sliding parts 420 are elongated grooves. The first sliding parts 410 are embedded in the second sliding parts 420 to form a one-to-one sliding connection.

[0042] When adjusting the height, an external force drives the wheel seat 300, which slides along the extension direction (vertical direction) of the first sliding part 410 via the second sliding part 420, causing the wheel frame 200 and the wheel body 100 to rise and fall synchronously. When there is no external force, the first sliding part 410 and the second sliding part 420 can also limit the lateral displacement of the wheel seat 300.

[0043] In some embodiments, the first sliding part 410 is a guide rail, and the second sliding part 420 is a sliding groove.

[0044] The wheel seat 300 is partially inserted into the fixed frame 400. A guide rail is provided on the outer periphery of the wheel seat 300, and a sliding groove is provided on the inner periphery of the fixed frame 400. The guide rail and the sliding groove are slidably connected.

[0045] The wheel base 300 has at least two guide rails and at least two sliding grooves. At least two guide rails are spaced apart on the outer periphery of the wheel base 300, and at least two sliding grooves are spaced apart on the inner periphery of the mounting bracket 400. The guide rails and grooves prevent the wheel base 300 from shifting during sliding, thus improving the stability of height adjustment.

[0046] In some embodiments, a rotating member 600 is further included, which is rotatably sleeved on the wheel frame 200 and connected to the wheel seat 300.

[0047] This application achieves the rotation of the wheel frame 200 through the rotating component 600, allowing for unobstructed rotation. The wheel seat 300 is directionally slidable through the cooperation of the guide rail and the sliding groove. The wheel seat 300 is moved by the rotation of the adjusting component 500, ultimately achieving the steering and height adjustment of the wheel body 100.

[0048] The rotating component 600 can be a bearing. This application does not limit the number of bearings. For example, the number of bearings can be one or two. For example, the rotating component 600 includes two bearings, which are spaced apart on the wheel frame 200 along the z-direction.

[0049] In some embodiments, the adjustment assembly 500 includes an adjustment member 510 and an adjustment baffle 520. The adjustment baffle 520 is connected to the wheel seat 300. One end of the adjustment member 510 passes through the fixed frame 400 and is connected to the adjustment baffle 520. The adjustment member 510 is configured to rotate under the action of an external force to drive the adjustment baffle 520 to slide the wheel seat 300 relative to the fixed frame 400.

[0050] The adjusting component 510 of the adjusting assembly 500 is vertically arranged above the fixed frame 400, and the adjusting baffle 520 is horizontally arranged above the wheel seat 300 and located in the inner cavity of the fixed frame 400.

[0051] The adjusting component 510 includes an adjusting bolt. The fixed frame 400 has a threaded hole. One end of the adjusting bolt passes through the threaded hole and is connected to the adjusting baffle 520. Rotating the adjusting bolt causes it to move relative to the fixed frame 400, thereby pushing the adjusting baffle 520 to move relative to the fixed frame 400. The adjusting baffle 520 acts on the wheel seat 300, driving the wheel seat 300 to move relative to the fixed frame 400.

[0052] Specifically, rotating the adjusting bolt clockwise moves it downward along the threaded hole of the fixing bracket 400, pushing the adjusting baffle 520 down onto the wheel seat 300, causing the wheel seat 300 to slide down, and the wheel body 100 to descend with the wheel frame 200. Rotating the adjusting bolt counterclockwise moves it upward, causing the adjusting baffle 520 to pull the wheel seat 300 upward, and the wheel body 100 to rise.

[0053] The adjusting component 510 also includes an adjusting nut 511, which is located on one side of the fixing frame 400. The adjusting bolt passes through the adjusting nut 511 and connects to the threaded hole on the fixing frame 400. By rotating the adjusting nut 511, the adjusting bolt can be rotated, changing the applied position and the direction of force, making it convenient for operators to use. For example, rotating the adjusting nut 511 can adjust the applied force position of the adjusting bolt. If the operating space is small, the bolt can be rotated by rotating the nut to change the direction of force.

[0054] In some embodiments, one end of the wheel seat 300 has a connecting platform 302, and the adjusting baffle 520 is pressed against the connecting platform 302.

[0055] The wheel seat 300 has a connecting platform at one end facing the adjusting member 510. The connecting platform is located inside the wheel seat 300. Part of the circumferential end face of the adjusting baffle 520 is connected to the connecting platform. The adjusting baffle 520 covers one end of the wheel seat 300. The adjusting baffle 520 transmits the force of the adjusting member 510 to the wheel seat 300, thereby driving the wheel seat 300 to slide relative to the fixed frame 400.

[0056] Since the wheel frame 200 is partially inserted into the mounting cavity 301 of the wheel seat 300, it drives the wheel frame 200 to move in the z direction, and the wheel body 100 is connected to the wheel frame 200, thereby adjusting the height of the wheel body 100.

[0057] An annular connecting platform 302 is integrally formed on the inner side of the top of the wheel seat 300, and the top surface of the connecting platform 302 is flush with the top surface of the wheel seat 300. The connecting platform 302 provides a stable force support point for the adjusting baffle 520. By connecting the adjusting baffle 520 to the connecting platform 302, the wheel seat 300 is prevented from deforming due to excessive local force, and the force of the adjusting component 500 is evenly transmitted to the wheel seat 300, so as to realize the directional sliding of the wheel seat 300.

[0058] In addition, this application also includes a limiting member 700, a first limiting hole 701 on the fixing frame 400, and a second limiting hole 702 on the wheel seat 300. The limiting member 700 passes through the first limiting hole 701 and the second limiting hole 702 sequentially from the outside of the fixing frame 400.

[0059] The limiting member 700 can be a bolt or screw, with a first limiting hole 701 and a second limiting hole 702, to restrict the sliding of the fixing frame 400 relative to the wheel seat 300, thereby fixing the position of the wheel seat 300 to maintain the adjusted height position of the wheel body 100. This application uses the limiting member 700 to prevent axial movement of the wheel seat 300.

[0060] The limiting member 700 is horizontally disposed on the side wall of the fixing frame 400. Multiple first limiting holes 701 are spaced apart in the vertical direction. When in the fixed position, the second limiting hole 702 corresponds to at least the first limiting hole 701.

[0061] Among them, combined Figure 1 , Figure 2 , Figure 3 The wheel frame 200 includes a first frame 210 and a second frame 220. The first frame 210 is connected to the second frame 220. The first frame 210 is rotatably connected to the wheel seat 300. The second frame 220 is connected to the wheel 100.

[0062] The second frame 220 includes a connecting shaft 222 and two wheel frames 221. The wheel 100 is rotatably mounted on the connecting shaft 222, and the two ends of the connecting shaft 222 are respectively connected to the two wheel frames 221.

[0063] The first frame 210 is partially inserted into the wheel seat 300, with a portion of the first frame 210 located on the outer side of the wheel seat 300. The first frame 210 has a receiving cavity 211. The second frame 220 is at least partially disposed within the receiving cavity 211. Both wheel frames 221 are partially located within the receiving cavity 211 and are arranged opposite to each other. A connecting member is also included, through which the wheel frames 221 are fixed to the inner wall of the receiving cavity 211.

[0064] The top of the first frame 210 is provided with bolt holes, and bolts are connected to the bolt holes through the washers. There is a certain gap between the bolts and the adjusting baffle 520.

[0065] In some embodiments, an elastic element 800 is also included, one end of which is connected to the first frame 210 and the other end of which is connected to the second frame 220.

[0066] Combination Figure 1 , Figure 2 , Figure 3 One end of the elastic element 800 is connected to the inner wall of the receiving cavity 211, and the other end of the elastic element 800 is connected to the second frame 220. The extending direction of the elastic element 800 is perpendicular to the extending direction of the connecting shaft 222; for example, the elastic element 800 extends along the y-direction, and the connecting shaft 222 extends along the x-direction. The elastic element 800 can be a spring, serving as a shock absorber. The elastic element 800 generates elastic force through stretching or compression, reducing the impact load on the wheel 100 and forming an elastic shock-absorbing structure without affecting the steering and height adjustment functions.

[0067] This application provides a vehicle, including a vehicle body and a balance wheel structure of any of the above embodiments disposed on the vehicle body.

[0068] The vehicle can be a handling vehicle, such as a forklift or AGV. The vehicle body has a frame, and the mounting bracket 400 is connected to the frame by bolts or screws.

[0069] Other embodiments of this application will readily conceive upon consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0070] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A balance wheel structure, characterized in that, include: Wheel body; A wheel frame, wherein the wheel body is connected to the wheel frame; A wheel seat, on which the wheel frame is rotatably mounted; The fixed frame, wherein the wheel seat is slidably disposed within the fixed frame; An adjustment assembly, wherein a portion of the adjustment assembly passes through the fixing frame and is pressed against the wheel seat; The adjustment component is configured to rotate under the action of an external force to drive the wheel seat to slide relative to the fixed frame in an directional manner to adjust the height of the wheel.

2. The balance wheel structure according to claim 1, characterized in that, At least a portion of the wheel seat is inserted into the fixed frame. One of the wheel seat and the fixed frame has at least one first sliding portion, and the other of the wheel seat and the fixed frame has at least one second sliding portion. The first sliding portion and the second sliding portion are slidably connected in a one-to-one correspondence.

3. The balance wheel structure according to claim 2, characterized in that, The first sliding part is a guide rail, and the second sliding part is a sliding groove.

4. The balance wheel structure according to claim 3, characterized in that, It also includes a rotating component, which is rotatably mounted on the wheel frame and connected to the wheel seat.

5. The balance wheel structure according to claim 3, characterized in that, The adjustment assembly includes an adjustment member and an adjustment baffle. The adjustment baffle is connected to the wheel seat. One end of the adjustment member passes through the fixed frame and is connected to the adjustment baffle. The adjustment member is configured to rotate under the action of an external force to drive the adjustment baffle to make the wheel seat slide relative to the fixed frame.

6. The balance wheel structure according to claim 5, characterized in that, One end of the wheel seat has a connecting platform, and the adjusting baffle is pressed against the connecting platform.

7. The balance wheel structure according to any one of claims 1-5, characterized in that, It also includes a limiting member, wherein the fixing frame has a first limiting hole and the wheel seat has a second limiting hole, and the limiting member passes through the first limiting hole and the second limiting hole sequentially from the outside of the fixing frame.

8. The balance wheel structure according to any one of claims 1-5, characterized in that, The wheel frame includes a first frame and a second frame, the first frame is connected to the second frame, the first frame is rotatably connected to the wheel seat, and the second frame is connected to the wheel.

9. The balance wheel structure according to claim 8, characterized in that, It also includes an elastic element, one end of which is connected to the first frame and the other end of which is connected to the second frame.

10. A vehicle, characterized in that, It includes a vehicle body and a balance wheel structure as described in any one of claims 1-9, which is disposed on the vehicle body.