Chassis device based on steering wheels

Abstract

The embodiment of the utility model provides a chassis device based on steering wheels, and relates to the field of chassis devices. The chassis device based on the steering wheels comprises a chassis, four walking wheels and at least one steering wheel. The chassis is quadrilateral and comprises a first surface and a second surface which are oppositely arranged, the four walking wheels are installed at the four corners of the first surface of the chassis, and the steering wheels are installed on the first surface. The problem that traditional tank cleaning equipment is inflexible in steering due to the fact that common rollers are used is solved. The steering wheel can achieve accurate in-situ steering in a narrow space, the space does not need to be vacated for many times, and the maneuverability and operation flexibility of equipment in the narrow environment are improved.

Description

Technical Field

[0001] The utility model relates to the field of chassis devices, and specifically refers to a chassis device based on a steering wheel. Background Art

[0002] Tanks in the prior art usually include closed containers such as reaction kettles, liquid storage tanks, fermentation tanks, etc. After use, their interiors must be thoroughly cleaned to avoid residues on the inner wall of the tank contaminating newly stored materials during the next use. Most of the current cleaning methods are manual operations. That is, by setting a cleaning port on the tank, workers enter the interior of the tank and use a water pipe or cleaning equipment to flush the inner wall of the tank. However, manual cleaning is not only inefficient but also labor-intensive. In addition, for tanks that have stored corrosive or odoriferous materials, manual cleaning may pose a threat to the health of workers and increase safety hazards. Therefore, there is an urgent need for a device that can automatically clean the interior of the tank to replace manual cleaning, so as to improve the cleaning efficiency, reduce the labor intensity, and reduce the potential harm to human health.

[0003] In response to the above problems, a utility model patent with the publication number CN111468490A and the application date of April 29, 2020 discloses an automatic tank cleaning system. This system can cooperate with a coil pipe device, a hose automatic transmission device, a lifting device, and a swing arm cleaning device to automatically clean the interior of the tank instead of manual labor, thereby shortening the cleaning time and saving time, labor, and cost. However, the chassis of this cleaning system uses ordinary rollers as moving tools. Usually, tank equipment is closely placed together with other auxiliary equipment in the working site, and the surrounding moving space is narrow, which limits the flexibility of the cleaning equipment. Ordinary roller chassis requires a large amount of space to maneuver when turning in a narrow space and cannot complete the turn in one go. It needs to adjust the position multiple times, increasing the operation difficulty. In addition, during the transfer of the tank, there is also a lack of limiting the tank, resulting in the instability of the tank itself and prone to the problem that the tank falls off the chassis during transportation. Summary of the Utility Model

[0004] According to an embodiment of the present utility model, a chassis device based on a steering wheel is provided. It is used to solve the problems raised in the above-mentioned background art.

[0005] In the first aspect of the present utility model, a chassis device based on a steering wheel is provided.

[0006] The chassis device based on a steering wheel includes: a chassis, four traveling wheels, and at least one steering wheel; the chassis is quadrilateral and includes a first surface and a second surface arranged opposite to each other. The four traveling wheels are installed at the four corners of the first surface of the chassis, and the steering wheel is installed on the first surface.

[0007] Preferably, the steering wheel includes a mounting disc, a driving assembly, a wheel frame, a first motor, and a driving wheel; the mounting disc is fixedly connected to the first surface of the chassis, the wheel frame is rotatably connected to the mounting disc, the driving assembly is connected to the wheel frame and is used to drive the wheel frame to rotate relative to the axis of the mounting disc, the driving wheel is connected to the wheel frame, and the first motor is connected to the driving wheel and is used to drive the driving wheel to rotate.

[0008] Preferably, the wheel frame includes a base, a first mounting portion, and a second mounting portion. The first mounting portion and the second mounting portion are oppositely arranged and are both fixedly connected to the lower surface of the base. An installation space for the driving wheel is formed between the first mounting portion and the second mounting portion. The driving wheel is rotatably installed between the first mounting portion and the second mounting portion, and the first motor is installed on the first mounting portion.

[0009] Preferably, a third mounting portion is provided on the upper surface of the base, a circular hole is formed in the mounting disc, and the third mounting portion extends into the circular hole and is rotatably connected to the circular hole.

[0010] Preferably, a bearing is installed on the second mounting portion, and the driving wheel is connected to the bearing.

[0011] Preferably, the driving assembly includes a second motor, a gear, and a toothed ring; the second motor is installed on the base, the gear is connected to the output end of the second motor, the toothed ring is fixedly installed on the mounting disc, and the gear is meshed with the toothed ring.

[0012] Preferably, a through hole is formed in the base, the second motor is installed on the lower surface of the base, and the output end of the second motor passes through the through hole and is connected to the gear.

[0013] Preferably, a limiting assembly is further included, and the limiting assembly is used to limit the tank carried by the chassis;

[0014] The limiting assembly includes two support arms, two groups of clamping arms, two mounting shells, and a one-way locking assembly. The two support arms are fixedly installed on the second surface of the chassis. The two mounting shells are respectively fixedly installed at one end of the support arms away from the second surface. The two groups of clamping arms are respectively connected to the two mounting shells. The number of each group of clamping arms is two. Teeth that mesh with each other are provided at one end of each group of clamping arms that are close to each other. The clamping arms are rotatably connected to the mounting shells. The one-way locking assembly is installed on the upper surface of the mounting shell and is used to lock the clamping arms; a rubber roller is provided at one end of the clamping arm away from the mounting shell.

[0015] Preferably, the one-way locking assembly includes a ratchet, a pawl, a mounting shaft, a torsion spring, a pull rod and a connecting shaft; the connecting shaft is fixedly connected to the clamping arm, the ratchet is fixedly connected to the connecting shaft, the mounting shaft is installed on the upper surface of the mounting shell, the torsion spring is sleeved on the mounting shaft, the pawl is sleeved on the mounting shaft and is rotatably connected to the mounting shaft, the torsion spring is connected to the pawl to provide torsional force to the pawl, and the pull rod is connected to the pawl.

[0016] Preferably, the running wheels are universal wheels.

[0017] Preferably, the number of the steering wheels is 1 to 4.

[0018] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0019] The utility model provides a chassis device based on a steering wheel, which controls the direction through the steering wheel and enables the chassis to move smoothly through the running wheels, thereby realizing flexible movement and precise positioning of the tank body in the working area. The steering of the steering wheel and the movement of the running wheels can cooperate with each other, so that the tank body can smoothly pass through narrow passages and meet the transportation needs under different working conditions. It solves the problem of inflexible steering of traditional tank cleaning equipment using ordinary rollers. The steering wheel can achieve precise on-the-spot steering in a small space without the need for multiple maneuvers, thereby improving the maneuverability and operational flexibility of the equipment in narrow environments. Through the cooperation of four running wheels and the steering wheel, the tank body can stably and quickly complete the transportation or rotation operation when the equipment is moving. Compared with the existing technology, the utility model avoids multiple movements and adjustments, significantly shortens the operation time of the cleaning equipment, and improves the overall work efficiency.

[0020] By moving one of the clamping arms, the other clamping arm will follow and move in different directions simultaneously until the rubber roller is in close contact with the can body, thus limiting and clamping the can body, ensuring the stability of the can body during transportation, and solving the problem of the can body falling off the chassis during transportation.

[0021] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features, advantages and aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0023] Figure 1Shows a three-dimensional structural schematic diagram of a chassis device based on a steering wheel from a first perspective according to Embodiment 1 of the present utility model;

[0024] Figure 2 Shows a three-dimensional structural schematic diagram of a chassis device based on a steering wheel from a second perspective according to Embodiment 1 of the present utility model;

[0025] Figure 3 Shows a three-dimensional structural schematic diagram of a steering wheel of a chassis device based on a steering wheel according to Embodiment 1 of the present utility model;

[0026] Figure 4 Shows an exploded view of a chassis device based on a steering wheel according to Embodiment 1 of the present utility model;

[0027] Figure 5 Shows a bottom view structural schematic diagram of a chassis device based on a steering wheel according to Embodiment 1 of the present utility model.

[0028] Figure 6 Shows a bottom view structural schematic diagram of a chassis device based on a steering wheel according to Embodiment 2 of the present utility model.

[0029] Figure 7 Shows a bottom view structural schematic diagram of a chassis device based on a steering wheel according to Embodiment 3 of the present utility model.

[0030] Figure 8 Shows a bottom view structural schematic diagram of a chassis device based on a steering wheel according to Embodiment 4 of the present utility model.

[0031] Figure 9 Shows a structural schematic diagram of a clamping arm of a chassis device based on a steering wheel according to Embodiment 4 of the present utility model.

[0032] Figure 10 Is Figure 9 An enlarged schematic diagram at position A in

[0033] Explanation of reference numerals

[0034] 1 - Chassis, 11 - First surface, 12 - Second surface, 2 - Traveling wheel, 3 - Steering wheel, 31 - Mounting plate, 32 - Driving assembly, 321 - Second motor, 322 - Gear, 323 - Ring gear, 33 - Wheel frame, 331 - Base, 332 - First mounting portion, 333 - Second mounting portion, 334 - Third mounting portion, 335 - Bearing, 34 - First motor, 35 - Driving wheel, 4 - Limiting assembly, 41 - Support arm, 42 - Clamping arm, 421 - Teeth, 422 - Rubber roller, 43 - Mounting housing, 44 - One-way locking assembly, 441 - Ratchet wheel, 442 - Pawl, 443 - Mounting shaft, 444 - Torsion spring, 445 - Pull rod, 446 - Connecting shaft. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] In addition, the term "and / or" in this text merely describes an association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0037] Embodiment 1

[0038] As Figures 1 to 5 shown, the chassis device based on a steering wheel includes: a chassis 1, four traveling wheels 2, and a steering wheel 3; the chassis 1 is quadrilateral and includes a first surface 11 and a second surface 12 which are oppositely arranged. The four traveling wheels 2 are installed at the four corners of the first surface 11 of the chassis 1, and the steering wheel 3 is installed on the first surface 11.

[0039] Among them, the first surface 11 faces the ground. The four traveling wheels 2 are installed at the four corners of the first surface 11 of the chassis 1, and these four traveling wheels 2 can play a role in supporting and sliding during the movement of the chassis. The traveling wheels 2 can adopt a universal wheel structure, allowing the chassis to move freely in multiple directions. The steering wheel 3 is installed at the middle or a specified position of the first surface 11 of the chassis 1 and is used to control the direction when the chassis 1 moves. The steering wheel 3 is used for the chassis 1 to achieve in-situ turning in a narrow space without the need to vacate too much space. Through the rotation control of the steering wheel 3, it is possible to quickly adjust the direction and position of the chassis 1 within a limited space, enhancing the mobility and operational convenience of the chassis device based on the steering wheel.

[0040] The second surface 12 of the chassis 1 is a working platform for carrying the tank body. After the tank body is fixed on the chassis, when it is necessary to transfer or rotate the tank body, the steering wheel 3 is activated to control the direction, and at the same time, the chassis is smoothly moved through the walking wheels 2, so as to realize the flexible movement and precise positioning of the tank body within the working area. The steering of the steering wheel and the movement of the walking wheels can cooperate with each other, enabling the tank body to smoothly pass through narrow channels and meeting the transfer requirements under different working conditions. It solves the problem that the traditional tank body cleaning equipment uses ordinary rollers and has inflexible steering. The steering wheel 3 can achieve precise in-situ steering in a narrow space without the need to move the space multiple times, improving the mobility and operation flexibility of the equipment in a narrow environment. Through the cooperation of the four walking wheels 2 and the steering wheel 3, the tank body can stably and quickly complete the transfer or rotation operation when the equipment is moving. Compared with the prior art, the utility model avoids multiple movements and adjustments, significantly shortens the operation time of the cleaning equipment, and improves the overall work efficiency.

[0041] In this embodiment, the steering wheel 3 includes a mounting plate 31, a driving assembly 32, a wheel frame 33, a first motor 34 and a driving wheel 35; the mounting plate 31 is fixedly connected to the first surface 11 of the chassis 1, the wheel frame 33 is rotatably connected to the mounting plate 31, the driving assembly 32 is connected to the wheel frame 33 and is used for driving the wheel frame 33 to rotate relative to the axis of the mounting plate 31, the driving wheel 35 is connected to the wheel frame 33, and the first motor 34 is connected to the driving wheel 35 and is used for driving the driving wheel 35 to rotate.

[0042] When the first motor 34 is started, the first motor 34 drives the driving wheel 35 to rotate. The rotation of the driving wheel 35 will drive the chassis 1 to move forward. The walking wheels 2 are in contact with the ground and the walking wheels 2 rotate. In this way, the walking of the chassis 1 can be realized. When steering is required, the driving assembly 32 is used to drive the wheel frame 33 to rotate relative to the axis of the mounting plate 31. The wheel frame 33 drives the driving wheel 35 to rotate, thereby changing the traveling direction of the driving wheel 35, so as to realize the flexible movement and precise positioning of the chassis 1 within the working area, and further realize the flexible transfer of the tank body.

[0043] In this embodiment, the wheel frame 33 includes a base 331, a first mounting portion 332 and a second mounting portion 333. The first mounting portion 332 and the second mounting portion 333 are arranged oppositely and are both fixedly connected to the lower surface of the base 331. An installation space for the driving wheel 35 is formed between the first mounting portion 332 and the second mounting portion 333. The driving wheel 35 is rotatably installed between the first mounting portion 332 and the second mounting portion 333, and the first motor 34 is installed on the first mounting portion 332. When the first motor 34 is started, the first motor 34 can drive the driving wheel 35 to rotate, and the driving wheel 35 drives the chassis 1 to move forward or turn.

[0044] In this embodiment, a bearing 335 is installed on the second mounting portion 333, and the driving wheel 35 is connected to the bearing 335. The setting of the bearing 335 makes the rotation of the driving wheel 35 smoother.

[0045] In this embodiment, a third mounting portion 334 is provided on the upper surface of the base 331. A circular hole is formed in the mounting disc 31. The third mounting portion 334 extends into the circular hole and is rotatably connected to the circular hole. The driving assembly 32 includes a second motor 321, a gear 322, and a gear ring 323. The second motor 321 is installed on the base 331. The gear 322 is connected to the output end of the second motor 321. The gear ring 323 is fixedly installed on the mounting disc 31. The gear 322 is meshed with the gear ring 323. When the second motor 321 is started, the output end of the second motor 321 drives the gear 322 to rotate. Since the gear ring 323 is fixedly connected to the mounting disc 31, during the rotation of the gear 322, it will perform a circular motion around the gear ring 323. The second motor 321 body, the base 331, and the third mounting portion 334 will rotate relative to the axis of the mounting disc 31 to change the traveling direction of the driving wheel 35.

[0046] In this embodiment, a through hole 3311 is formed in the base 331. The second motor 321 is installed on the lower surface of the base 331. The output end of the second motor 321 passes through the through hole 3311 and is connected to the gear 322. By arranging the second motor 321 on the lower surface of the base 331, interference caused by the rotation of the base 331 of the second motor 321 can be effectively avoided.

[0047] In this embodiment, as Figure 2 、 Figure 9 and Figure 10 shown, the chassis device based on the steering wheel further includes a limiting assembly 4, and the limiting assembly 4 is used to limit the tank body carried by the chassis 1.

[0048] The limiting assembly 4 includes two support arms 41, two sets of clamping arms 42, two mounting housings 43, and a one-way locking assembly 44. The two support arms 41 are fixedly mounted to the second surface 12 of the chassis 1, and the two mounting housings 43 are respectively fixedly mounted to the ends of the support arms 41 away from the second surface 12. The two sets of clamping arms 42 are respectively connected to the two mounting housings 43, forming a clamping space for clamping the tank body between the two sets of clamping arms 42. Each set of clamping arms 42 has two, and the adjacent ends of each set of clamping arms 42 are provided with intermeshing teeth 421. The clamping arms 42 are rotatably connected to the mounting housing 43. The meshing teeth 421 enable the two clamping arms in a set of clamping arms 42 to operate synchronously. The one-way locking assembly 44 is installed on the upper surface of the mounting shell 43 and is used to lock the clamping arm 42; a rubber roller 422 is provided at one end of the clamping arm 42 away from the mounting shell 43, and the rubber roller 422 is used to closely contact the surface of the tank body during the clamping process, thereby enhancing the fixing effect on the tank body.

[0049] During the transport of the can, the positioning assembly 4 can be provided to improve the stability of the can. In actual use, the one-way locking assembly 44 on the clamping arm 42 is canceled, and then the clamping arm 42 is moved to open the clamping arm 42. Next, the can is placed on the chassis 1, and then the clamping arm 42 is moved to clamp the can. Since the end of each group of clamping arms 42 that is close to each other is provided with mutually meshing teeth 421, when one clamping arm 42 is moved, the other clamping arm 42 follows it and moves in a different direction at the same time. Until the rubber roller 422 is in close contact with the can, the position of the can is limited and clamped, ensuring the stability of the can during transport and solving the problem of the can falling off the chassis during transport.

[0050] Furthermore, the one-way locking assembly 44 includes a ratchet wheel 441, a pawl 442, a mounting shaft 443, a torsion spring 444, a pull rod 445, and a connecting shaft 446; the connecting shaft 446 is fixedly connected to the clamping arm 42, the ratchet wheel 441 is fixedly connected to the connecting shaft 446, the mounting shaft 443 is mounted on the upper surface of the mounting housing 43, the torsion spring 444 is sleeved on the mounting shaft 443, the pawl 442 is sleeved on the mounting shaft 443 and is rotatably connected to the mounting shaft 443, the torsion spring 444 is connected to the pawl 442 to provide a torsional force for the pawl 442, so that the pawl 442 meshes with the ratchet wheel 441 to prevent the ratchet wheel 441 from rotating in the first direction. The pull rod 445 is connected to the pawl 442. When it is necessary to open the clamping arm 42, the pull rod 445 is pulled to disengage the pawl 442 from the ratchet wheel 441. At this time, the prevention of the ratchet wheel 441 from rotating in the first direction is cancelled, and at the same time, the torsion spring 444 is also compressed. Next, the clamping arm 42 is toggled to open. After the clamping arm 42 is opened, the pull rod 445 is released, and under the elastic force of the torsion spring 444, the pawl 442 is urged to contact the ratchet wheel 441. The tank body is placed on the upper surface of the chassis 1, and then the clamping arm 42 can be directly toggled until the rubber roller 422 of the clamping arm 42 contacts the tank body. At this time, under the action of the pawl 442 and the ratchet wheel 441, the clamping arm 42 cannot be opened any further.

[0051] Embodiment 2

[0052] As Figure 6 shown, compared with Embodiment 1, the difference in this embodiment is that the number of steering wheels 3 is two. Both of the two steering wheels 3 are mounted on the first surface 11 of the chassis 1 and cooperate with each other to achieve more flexible steering and moving operations. Compared with the one steering wheel 3 in Embodiment 1, the two steering wheels 3 can provide a more stable steering control effect. Especially in the case of a larger tank body or when a greater weight needs to be carried, the two steering wheels 3, through their collaborative action, further enhance the steering flexibility and stability of the chassis. Each steering wheel 3 can independently adjust its direction, so as to ensure that the device can complete the steering operation more smoothly and accurately in a narrow space, reducing the number of adjustments required for steering.

[0053] Embodiment 3

[0054] As Figure 7 shown, compared with Embodiment 1, the difference in this embodiment is that the number of steering wheels 3 is three. All three steering wheels 3 are mounted on the first surface 11 of the chassis 1, and the connecting lines of adjacent steering wheels 3 form an isosceles triangle. The collaborative action of the three steering wheels enables the chassis to achieve smoother steering during movement, especially suitable for occasions where flexible operation is required in a narrow space.

[0055] Embodiment 4

[0056] As Figure 8As shown in the figure, the difference between this embodiment and the first embodiment is that the number of steering wheels 3 is four, and the four steering wheels 3 are all installed on the first surface 11 of the chassis 1, and the four steering wheels 3 are respectively close to the traveling wheels 2. Since the four steering wheels 3 are all close to the traveling wheels 2, the device can achieve more flexible control during steering. The close cooperation between the steering wheels 3 and the traveling wheels 2 enables the chassis to quickly respond to the steering requirements and can achieve in-situ steering. Whether in a narrow space or a spacious working site, it can be operated flexibly. The four steering wheels 3 are evenly distributed at the four corners of the chassis, enabling the chassis to achieve smooth 360-degree steering operation, reducing the need for multiple position adjustments, and improving the overall work efficiency.

[0057] The above specific implementation manners do not constitute a limitation on the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A chassis device based on a steering wheel, characterized in that It includes a chassis (1), four traveling wheels (2) and at least one steering wheel (3); the chassis (1) is quadrilateral and includes a first surface (11) and a second surface (12) which are oppositely arranged, the four traveling wheels (2) are installed at the four corners of the first surface (11) of the chassis (1), and the steering wheel (3) is installed on the first surface (11). The steering wheel (3) includes a mounting disc (31), a driving assembly (32), a wheel frame (33), a first motor (34) and a driving wheel (35); the mounting disc (31) is fixedly connected to the first surface (11) of the chassis (1), the wheel frame (33) is rotatably connected to the mounting disc (31), the driving assembly (32) is connected to the wheel frame (33) and is used for driving the wheel frame (33) to rotate relative to the axis of the mounting disc (31), the driving wheel (35) is connected to the wheel frame (33), and the first motor (34) is connected to the driving wheel (35) and is used for driving the driving wheel (35) to rotate.

2. The chassis device based on a steering wheel according to claim 1, characterized in that, The wheel frame (33) includes a base (331), a first mounting portion (332) and a second mounting portion (333), the first mounting portion (332) and the second mounting portion (333) are oppositely arranged and are both fixedly connected to the lower surface of the base (331), an installation space for the driving wheel (35) is formed between the first mounting portion (332) and the second mounting portion (333), the driving wheel (35) is rotatably installed between the first mounting portion (332) and the second mounting portion (333), and the first motor (34) is installed on the first mounting portion (332).

3. The chassis device based on a steering wheel according to claim 2, characterized in that, A bearing (335) is installed on the second mounting portion (333), and the driving wheel (35) is connected to the bearing (335).

4. The chassis device based on a steering wheel according to claim 2, characterized in that A third mounting portion (334) is arranged on the upper surface of the base (331), a round hole is formed in the mounting disc (31), the third mounting portion (334) extends into the round hole and is rotatably connected to the round hole.

5. The chassis device based on a steering wheel according to claim 2, characterized in that, The driving assembly (32) includes a second motor (321), a gear (322) and a toothed ring (323); the second motor (321) is installed on the base (331), the gear (322) is connected to the output end of the second motor (321), the toothed ring (323) is fixedly installed on the mounting disc (31), and the gear (322) is meshed and connected to the toothed ring (323).

6. The chassis device based on a steering wheel according to claim 1, characterized in that It further includes a limiting assembly (4), and the limiting assembly (4) is used for limiting the tank body carried by the chassis (1). The limiting component (4) includes two support arms (41), two groups of clamping arms (42), two mounting housings (43) and a one-way locking component (44). The two support arms (41) are fixedly mounted on the second surface (12) of the chassis (1). The two mounting housings (43) are respectively fixedly mounted at one ends of the support arms (41) away from the second surface (12). The two groups of clamping arms (42) are respectively connected to the two mounting housings (43). The number of each group of clamping arms (42) is two. The mutually approaching ends of each group of clamping arms (42) are provided with mutually meshing teeth (421). The clamping arms (42) are rotatably connected to the mounting housings (43). The one-way locking component (44) is mounted on the upper surface of the mounting housing (43) for locking the clamping arms (42). One end of the clamping arm (42) away from the mounting housing (43) is provided with a rubber roller (422).

7. The chassis device based on a steering wheel according to claim 6, characterized in that, The one-way locking component (44) includes a ratchet wheel (441), a pawl (442), a mounting shaft (443), a torsion spring (444), a pull rod (445) and a connecting shaft (446). The connecting shaft (446) is fixedly connected to the clamping arm (42). The ratchet wheel (441) is fixedly connected to the connecting shaft (446). The mounting shaft (443) is mounted on the upper surface of the mounting housing (43). The torsion spring (444) is sleeved on the mounting shaft (443). The pawl (442) is sleeved on the mounting shaft (443) and is rotatably connected to the mounting shaft (443). The torsion spring (444) is connected to the pawl (442) to provide a torsional force for the pawl (442). The pull rod (445) is connected to the pawl (442).

8. The chassis device based on a steering wheel according to claim 1, characterized in that, The traveling wheel (2) is a universal wheel.

9. The chassis device based on a steering wheel according to claim 1, characterized in that, The number of the steering wheels (3) is 1 to 4.

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