A camper with motor driven steering

Abstract

The application discloses a camping vehicle with motor-driven steering, which comprises a folding vehicle body and a control assembly. One end of the folding vehicle body is provided with a directional wheel at the bottom, and the other end is provided with a directional wheel at the bottom. A steering structure is connected between the two directional wheels. One end of the folding vehicle body provided with the directional wheel is further provided with a directional rod assembly. The bottom end of the directional rod assembly is further provided with an electric control steering device. The output end of the electric control steering device is connected with the transmission structure. The electric control steering device is further electrically connected with the control assembly. By arranging the electric control steering device on the directional rod assembly, manual steering and remote electric control steering can be realized, the diversification of steering control is improved, the user can be more free, different use requirements can be met, a solid and stable development foundation is provided for subsequent functions, and the structure is simple and reasonable.

Description

Technical Field

[0001] This utility model relates to the field of campervan technology, and in particular to a campervan with motor-driven steering. Background Technology

[0002] A campervan is a foldable, towable vehicle. Because it is easy to use, can carry cargo, is easy to store, and saves time and effort, it is widely used for transporting things and is now often used for outdoor activities or short-distance transportation.

[0003] Traditional campervans are typically towed manually, which can easily lead to fatigue for users during prolonged use or on uphill sections. To address this, engineers designed electrically assisted campervans by replacing the wheels with hub motors, enabling electric power and reducing user fatigue. However, this method still requires manual pulling from the front to control the direction, which can also cause fatigue during extended use. To further address this, inventors designed a passenger-carrying electric campervan, as illustrated by Chinese Utility Model Patent Publication No. CN222022739U, which discloses a folding electric vehicle with a footrest. Users can sit on the seat and control the folding vehicle's steering via a steering lever assembly, achieving a riding effect without the need for manual pulling, effectively avoiding fatigue and improving the user experience. However, in practical use, the inventors found that both standard assisted and rideable campervans require user control from the front or on the vehicle, lacking remote control capabilities and offering a limited control method.

[0004] Therefore, there is an urgent need to design a campervan with electric motor-driven steering to solve one or more technical problems that are lacking in the existing technology. Utility Model Content

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a campervan with motor-driven steering, characterized in that it includes: a folding vehicle body and a control component; the folding vehicle body is formed by multiple side supports enclosing a frame with a receiving cavity, and a foldable bottom support is connected to the middle of the folding vehicle body; a steering wheel is provided at one bottom end of the folding vehicle body, and a directional wheel is provided at the bottom end of the other bottom end; the steering wheel and / or the directional wheel are drive wheels and are electrically connected to the control component; the control component is used to control the operation of the drive wheels and provide power; there are two steering wheels, and a steering structure is connected between the two steering wheels; the folding... The vehicle body has a steering rod assembly at one end where the steering wheel is located. The bottom end of the steering rod assembly is connected to a transmission structure. The steering rod assembly is connected to the steering structure through the transmission structure and controls the movement of the steering structure. The bottom end of the steering rod assembly also has an electric steering device. The output end of the electric steering device is connected to the transmission structure. The electric steering device controls the movement of the steering structure through the transmission structure. The electric steering device receives external control signals to control the movement of the steering structure and drives the steering wheel to turn through the steering structure. The electric steering device is also electrically connected to the control component.

[0006] In a preferred embodiment, the steering column assembly further includes a switching structure for switching between the steering column assembly controlling the movement of the transmission structure and the electronic steering device controlling the movement of the transmission structure.

[0007] In a preferred embodiment, the folding vehicle body has a support assembly connected to one end of the steering wheel, the bottom of the steering rod assembly is rotatably connected to the support assembly, and the steering rod assembly can rotate relative to the support assembly on a horizontal plane.

[0008] In a preferred embodiment, the support assembly includes: two directional struts, which are rotatably disposed on both sides of the end of the folding vehicle body, and an adapter is connected to the end of the two directional struts away from the connection with the folding vehicle body, and the bottom end of the directional strut assembly is rotatably connected to the adapter.

[0009] In a preferred embodiment, a steering arm is further provided on one side of the steering wheel, and the steering structure is rotatably connected to the steering arm.

[0010] In a preferred embodiment, the conversion structure includes: a conversion pin slidably disposed at the bottom of the direction rod assembly; one end of the transmission structure extends outward and is provided with a pin hole adapted to the conversion pin; the conversion pin is also provided with a lever.

[0011] In a preferred embodiment, the steering rod assembly has a connecting drive device at one end where the conversion structure is located. The connecting drive device is connected to the conversion structure and is used to drive the steering structure to establish or interrupt the force transmission between the steering rod assembly and the transmission structure.

[0012] In a preferred embodiment, the drive device includes a motor, the output end of which is connected to a lead screw, which is connected to the conversion structure in a transmission connection.

[0013] In a preferred embodiment, a seat plate is detachably connected to the top of the folding vehicle body.

[0014] In a preferred embodiment, seat support rods are connected to the top two sides of the folding vehicle body, and the seat plate is detachably connected to the seat support rods.

[0015] In a preferred embodiment, when the transmission structure is in a state of motion controlled by the electronically controlled steering device, the conversion structure restricts the rotation of the steering rod assembly in the horizontal plane.

[0016] The beneficial effects of this utility model are: by setting an electronically controlled steering device on the steering column assembly, this application can achieve both manual steering and remote electronically controlled steering, which enhances the diversification of steering control, allows users to move more freely, meets different usage needs, provides a solid and stable foundation for the development of subsequent functions, and has a simple structure and reasonable design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the folding vehicle body of this utility model; Figure 3 This is a schematic diagram of the steering structure and steering rod assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the support component of this utility model; Figure 5 This is a cross-sectional view of the support component of this utility model; Figure 6 This is a cross-sectional view of the connecting drive device of this utility model; Figure 7 This is a schematic diagram of the manual control switching pin sliding structure of this utility model; Figure 8 This is a diagram showing the folded state of the steering structure of this utility model; Figure 9 This is a diagram showing the folded state of this utility model.

[0018] In the picture: 10. Folding frame; 101. Steering wheel; 102. Fixed wheel; 103. Side support; 104. Base support; 105. Seat support rod; 106. Steering arm; 107. Seat plate; 108. Clamping device; 11. Control components; 111. Controller; 12. Steering structure; 121. First link; 122. Second link; 123. Third link; 13. Support assembly; 131. Directional strut; 132. Adapter; 133. Synchronizing gear; 134. Clearance hole; 135. Bearing; 14. Electric steering system; 141. Output shaft; 15. Transmission structure; 151. Pin hole; 16. Conversion structure; 161. Conversion pin; 162. Toggle block; 163. Connecting drive device; 164. Motor; 165. Transmission screw; 17. Steering rod assembly; 171. Limiting groove. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0021] In the embodiments of this application, 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 indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0022] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0023] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] like Figures 1-9As shown, this utility model provides a campervan with motor-driven steering, including: a folding body 10 and a control component 11; one end of the folding body 10 has a steering wheel 101 at its bottom, and the other end has a directional wheel 102 at its bottom. The control component 11 is disposed in the folding body 10. The steering wheel 101 and / or the directional wheel 102 are drive wheels and are electrically connected to the control component 11. The control component 11 is used to control the operation of the drive wheels and provide power. There are two steering wheels 101, and a steering structure 12 is connected between the two steering wheels 101. The end of the folding body 10 with the steering wheels 101 also has a steering rod assembly 17. The bottom end of the steering column assembly 17 is connected to a transmission structure 15. The steering column assembly 17 is connected to the steering structure 12 through the transmission structure 15 and controls the movement of the steering structure 12. The bottom end of the steering column assembly 17 is also provided with an electric steering device 14. The output end of the electric steering device 14 is connected to the transmission structure 15. The electric steering device 14 controls the movement of the steering structure 12 through the transmission structure 15. The electric steering device 14 receives external control signals to control the movement of the steering structure 12 and drives the steering wheel 101 to turn through the steering structure 12. The electric steering device 14 is also electrically connected to the control component 11. Specifically, the folding vehicle body 10 can be either a bi-fold type or a convergent type. A bi-fold type means the folding mechanism involves moving the front and rear ends of the folding body in opposite directions. A convergent type means the folding body 10 is formed by multiple foldable side supports 103 and has a accommodating cavity frame, converging towards the center from multiple directions during folding. The number of foldable side supports 103 is at least three forming a triangle, or four forming a rectangle, depending on actual needs. Both types have a foldable bottom support 104 at the bottom to support goods. In the bi-fold type, the front and rear side supports 103 do not have a folding function, while the bottom support 104 folds in a bi-fold manner. In the convergent type, all side supports 103 have a folding function, and the bottom support 104 has a convergent folding function. The convergent type has a smaller folded volume than the bi-fold type, making it easier to transport. In this embodiment, the convergent type is preferred. The following description uses a rectangular, folding vehicle body as an example. One end of the folding vehicle body 10 has a steering wheel 101, and the other end has a directional wheel 102. The steering wheel 101 can rotate laterally at the bottom of the folding vehicle body 10 to control the direction of travel. The directional wheel 102 cannot rotate laterally to ensure safety. Two steering wheels 101 and two directional wheels 102 are provided, arranged in a rectangular pattern, thus stably supporting the folding vehicle body 10 from four points. Either the steering wheel 101 or the directional wheel 102 can be used as a drive wheel, or both can be used together as drive wheels, depending on the usage requirements. A drive wheel is a wheel capable of generating power to drive the folding vehicle body 10. A hub motor is preferred. The folding vehicle body 10 also has a control component 11, which includes a controller 111 for controlling the operation of the drive wheels and a power source (not shown in the figure) that provides power to the controller 111, drive wheels, and other electrical components. The drive wheels are electrically connected to the controller 111.A steering structure 12 is also provided between the two steering wheels 101. This steering structure 12 connects the two steering wheels 101 and is used to enable steering linkage between the two steering wheels 101. A steering rod assembly 17 is also provided at one end of the folding vehicle body 10 where the steering wheels 101 are located. A transmission structure 15 is connected to the bottom of the steering rod assembly 17. The steering rod assembly 17 is connected to the steering structure 12 through the transmission structure 15, so that when the steering rod assembly 17 is subjected to force and rotates, the force can be transmitted to the steering structure 12 through the transmission structure 15, causing the steering structure 12 to move, thereby driving the two steering wheels 101. The steering wheels 101 are linked, and for simplicity and clarity, this method will be referred to as "manual steering". The specific structure of the steering lever assembly 17 can be referred to in the prior art, such as the Chinese Utility Model Authorization Publication No. CN222136788U, or conventional telescopic steering levers in the prior art. The steering lever assembly 17 integrates control buttons, which can be used to control the folding vehicle body 10 to start, move, accelerate, brake, adjust mode, and adjust gear. The steering lever assembly 17 and the control assembly 11 can be connected by wired electricity. Both wired and wireless connections are possible. To enhance the versatility of control methods, an electric steering device 14 is also provided at the bottom of the steering stick assembly 17. This electric steering device 14 is a motor, preferably a high-torque motor, such as a servo motor. The servo motor has a built-in gearbox and angle feedback, which can generate a large torque in a small volume and provide real-time feedback of the rotation angle to ensure sufficient torque for driving and easy understanding of the rotation angle. The output end of the electric steering device 14 is fixedly connected to the transmission structure 15 so that when the electric steering device 14 is running, it generates force to drive the transmission structure 15 to move. The force is transmitted to the steering structure 12 through the transmission structure 15, causing the steering structure 12 to move, thereby driving the steering wheel 101 to rotate and achieve steering control. For a concise and clear description, this method is referred to as "electric steering". The electric steering device 14 receives external control signals and operates according to control commands. The external control signals can be sent directly to the electric steering device 14 by the control terminal or sent to the controller 111 by the control terminal, and then sent to the electric steering device 14 by the controller 111, depending on the actual development needs. This structure allows the campervan to be steered by either manually controlling the steering wheel 101 via the steering lever assembly 17 or via the electronic steering device 14, thus moving beyond manual operation and meeting diverse needs.

[0025] It should be noted that, in the above embodiments, to ensure smooth steering control, the electronic steering device 14 is preferably fixedly connected to the steering column assembly 17. That is, when the steering column assembly 17 rotates, it must be able to synchronously drive the electronic steering device 14 to rotate, thereby driving the transmission structure 15 to move, and then driving the steering structure 12 to move. Furthermore, the electronic steering device 14 must have a power-off self-locking function to restrict the free rotation of the output shaft 141 of the electronic steering device 14, so as to prevent the electronic steering device 14 from rotating relative to the transmission structure 15 during manual steering, thus preventing the steering from becoming uncontrollable. In the case where the electric steering is not used, the electric steering device 14 is de-energized and self-locked. When the electric steering mode is selected, the electric steering device 14 is energized and the self-locking is released. At the same time, when the steering is controlled by the electric steering device 14, the steering rod assembly 17 needs to be fixed to prevent the electric steering device 14 from being unable to drive the steering structure 12 smoothly through the transmission structure 15 due to the rotation of the steering rod assembly 17. The steering rod assembly 17 can be detachably fixed to the folding vehicle body 10 or to other structural components on the folding vehicle body 10.

[0026] Furthermore, the steering structure 12 includes a first link 121, which is located between the two steering wheels 101 and is rotatably connected to the steering wheels 101. Specifically, the steering structure 12 includes a first link 121, which is located between two steering wheels 101 and is rotatably connected to the corresponding steering wheels 101 at both ends. The connection point between the first link 121 and the steering wheel 101 is offset from the connecting shaft connecting the steering wheel 101 and the folding vehicle body 10, thereby ensuring that the first link 121 can cause the steering wheel 101 to rotate around its connecting shaft during translational movement to achieve steering. This simple steering structure 12 with only the first link 121 is more suitable for folding vehicle bodies with relatively simple folding methods.

[0027] Furthermore, there are two first connecting rods 121, with one end of each first connecting rod 121 rotatably connected. The steering structure 12 also includes a second connecting rod 122, which is located at the end of each first connecting rod 121 away from the one connected to it, and is rotatably connected to the first connecting rod 121. The end of the second connecting rod 122 away from the one connected to the first connecting rod 121 is rotatably connected to the corresponding steering wheel 101. Specifically, when the steering structure 12 is applied to a gathering-type vehicle body, the steering structure 12 further includes a second link 122. In this case, there are two first links 121 and two second links 122. One end of each of the two first links 121 is rotatably connected to the transmission structure 15. The two second links 122 are located at the ends of the two first links 121 away from the electric control steering device 14, and are rotatably connected to the corresponding first links 121 in a one-to-one correspondence. The ends of the two second links 122 away from the connection with the first links 121 are rotatably connected to the steering wheels 101. The rotation direction of the first links 121 and the second links 122 is rotation in a transverse plane or a vertical plane. When the foldable vehicle body 10 is folded, the first links 121 and the second links 122 form a "W" shape in the transverse plane or the vertical plane.

[0028] Further, the steering structure 12 further includes: two third links 123, which are respectively located at the ends of the two second links 122 away from the first links 121 and are rotatably connected to the second links 123, and the ends of the third links 123 away from the second links 122 are rotatably connected to the corresponding steering wheels 101; Specifically, to enable the steering structure 12 to better adapt to the folding of the gathering-type vehicle body, the steering structure 12 may further be provided with the third links 123. In this case, the first link 121 is rotatably connected to the transmission structure 15, the second links 122 are disposed at both ends of the first link 121 and are rotatably connected to the first link 121; the third links 123 are disposed at the ends of the second links 122 away from the first link 121 and are rotatably connected to the second links 122; the ends of the third links 123 away from the second links 122 are rotatably connected to the steering wheels 101. The first link 121, the second links 122 and the third links 123 can rotate relative to each other in the vertical direction or the transverse direction, forming a "several" shape when folded by vertical rotation, and a "W" shape when folded by transverse rotation; wherein according to the structure of the gathering-type vehicle body, the connection mode between the transmission structure 15 and the first link 121 also varies. For example, when the gathering-type vehicle body is folded, the uprights at the four corners of the vehicle body will extend and retract. In this case, guide sliding posts need to be provided at the connection positions between the two first links 121 and the transmission structure 15, and the transmission structure 15 can move on the guide sliding posts. When the gathering-type vehicle body is folded, the center points of the front and rear ends will displace upward, and at this time, the transmission structure 15 will slide relative to the guide sliding posts to avoid being restricted, which would lead to the situation that the gathering-type vehicle body cannot be folded; if the uprights at the four corners do not extend and retract when the gathering-type vehicle body is folded, the center points of the front and rear ends will not displace upward, and no guide sliding posts need to be provided at the connection positions between the first links 121 and the transmission structure 15.

[0029] It should be noted that, in the aforementioned embodiments, when the steering structure 12 is folded into a "W" shape, a sleeve is also required to be movably installed at the connection between the second link 122 and the first link 121, or at the connection between the second link 122 and the third link 123, and at the connection between the second link 122 and the first link 121. This sleeve is used to slide to a specific position when the folding vehicle body 10 is unfolded to lock the angle between the links, so as to avoid the steering structure 12 from folding unexpectedly during use, and to reduce the loss of force due to the shaking of the steering structure 12 during the transmission process.

[0030] Furthermore, a steering arm 106 is provided on one side of the steering wheel 101, and the steering structure 12 is rotatably connected to the steering arm 106. Specifically, in order to facilitate the steering structure 12 to drive the steering wheel 101, a steering swing arm 106 is provided on the side of the steering wheel 101 facing the directional wheel 102. The steering swing arm 106 is used to extend the distance between the steering structure 12 and the lateral rotation axis of the steering wheel 101, so that the steering structure 12 can drive the steering wheel 101 to rotate laterally more conveniently.

[0031] Furthermore, the folding vehicle body 10 has a support assembly 13 connected to one end of the steering wheel 101, and the bottom of the steering rod assembly 17 is rotatably connected to the support assembly 13, and the steering rod assembly 17 can rotate laterally relative to the support assembly 13. Specifically, to facilitate fixing the steering rod assembly 17 to the end of the folding vehicle body 10 where the steering wheel 101 is located, a support assembly 13 is also provided outside the end of the folding vehicle body 10 where the steering wheel 101 is located. The bottom of the steering rod assembly 17 is rotatably connected to the support assembly 13, and the steering rod assembly 17 can rotate laterally relative to the support assembly 13 so as to drive the steering structure 12 to rotate through the transmission structure 15. If the folding vehicle body 10 is a bi-fold type vehicle body, the support assembly 13 can be an integral structure.

[0032] Furthermore, the support assembly 13 includes: two directional struts 131, which are rotatably disposed on both sides of the end of the folding vehicle body 10. The ends of the two directional struts 131 away from the folding vehicle body 10 are connected to a connector 132, and the bottom end of the directional strut assembly 17 is rotatably connected to the connector 132. Specifically, when the folding vehicle body 10 is a convergent type, to adapt to the folding method of the convergent type, the support assembly 13 includes two directional struts 131. The two directional struts 131 are respectively disposed on both sides of the end of the folding vehicle body 10, and the ends of the two directional struts 131 away from the connection with the folding vehicle body 10 are connected to a common adapter 132. The steering rod assembly 17 is connected to the adapter 132 via a bearing 135 to connect the electronically controlled steering device 14 and the support assembly 13, and to allow the steering rod assembly 17 to rotate laterally relative to the adapter 132. To adapt to the folding of the convergent type, the two directional struts 131... The adapter 132 is rotatably connected to the folding vehicle body 10, and is rotatably connected to the two directional support rods 131. When the folding vehicle body 10 is folded, the two directional support rods 131 can rotate vertically relative to the adapter 132. Thus, when the folding vehicle body is folded, the two directional support rods 131 also fold and move closer together. At the same time, the folding of the directional support rods 131 will push up the adapter 132, and the adapter 132 will drive the directional rod assembly 17 to rise. The directional rod assembly 17 will then drive the steering structure 12 to fold through the transmission structure 15, realizing linkage. Therefore, there is no need for manual intervention to make the steering structure 12 fold, making folding simpler and more convenient.

[0033] Since the two directional support rods 131 can rotate relative to the adapter 132 and the folding vehicle body 10 respectively, the two directional support rods 131 are prone to different rotation angles during folding. This causes the steering rod assembly 17 to be subjected to tilting force, which acts on the steering structure 12 and affects the service life of the structure. To avoid this situation, synchronous teeth 133 are respectively provided at the ends of the two directional support rods 131 connected to the adapter 132, and the synchronous teeth 133 of the two directional support rods 131 mesh with each other, thereby ensuring that the two directional support rods 131... The rotation of the directional struts 131 is synchronized to ensure that the adapter 132 is in a horizontal position. In this embodiment, the ends of the two directional struts 131 with synchronizing teeth 133 are located inside the adapter 132. In order to avoid the adapter 132 and the synchronizing teeth 133 abutting each other during rotation, which would prevent the directional struts 131 from rotating, a clearance hole 134 can be opened at the position corresponding to the synchronizing teeth 133 on the adapter 132, so that the synchronizing teeth 133 can be exposed outside the adapter 132 when the directional struts 131 rotate, thus avoiding affecting the rotation of the directional struts 131.

[0034] Furthermore, the transmission structure 15 is in the shape of an "S" strip; Specifically, when the folding vehicle body 10 adopts a convergent type body, since the side supports 103 at both the front and rear ends of the folding vehicle body 10 will converge along the width direction, in order to avoid clamping the transmission structure 15 when converging along the width direction, in this embodiment, the transmission structure 15 is preferably a rocker arm that is bent in an "S" shape in the horizontal plane. The strip shape can reduce the width volume, and the S shape can avoid the side supports 103, so as to avoid being clamped and affecting the complete folding of the folding vehicle body 10. One end of the transmission structure 15 is connected to the direction rod assembly 17, and the other end is connected to the first link 121 of the steering structure 12 through a hinge or ball joint.

[0035] Furthermore, in another preferred embodiment, the end of the steering rod assembly 17 connected to the transmission structure 15 is further provided with a conversion structure 16, which can selectively establish or interrupt the force transmission between the steering rod assembly 17 and the transmission structure 15. Specifically, although the self-locking mechanism of the electronic steering system 14 enables the steering column assembly 17 to drive the transmission structure 15, the rotating shaft of the electronic steering system 14 will be frequently subjected to force in this situation. Over time, this can easily affect the internal components of the electronic steering system 14, leading to decreased accuracy and even reduced service life. To avoid this, a conversion structure 16 is provided at the end where the steering column assembly 17 connects to the transmission structure 15. This conversion structure 16 can establish or interrupt the force transmission path between the steering column assembly 17 and the transmission structure 15. That is, when manually steering, the conversion structure 16 physically connects the steering column assembly 17 and the transmission structure 15 together. The steering column assembly 17 transmits force to the transmission structure 15 through the conversion structure 16. The force-driven movement then drives the steering structure 12 to move, achieving manual steering. When switching to electronic steering in manual steering mode, the movement of the conversion structure 16 interrupts the force transmission path between the steering rod assembly 17 and the transmission structure 15. At this time, the rotation of the steering rod assembly 17 cannot drive the transmission structure 15 to move, and cannot control the rotation of the steering wheel 101. The rotation of the steering wheel 101 can only be controlled by the electronic steering device 14 driving the transmission structure 15 to move. With the conversion structure 16, the electronic steering device 14 does not need to have a power-off self-locking function, allowing the rotating shaft of the electronic steering device 14 to rotate freely when the power is off. By freely rotating, the force is dissipated, avoiding frequent force application that affects accuracy, and providing a stable foundation for subsequent functional development.

[0036] It should be noted that when the steering control is in electronic steering mode, when the conversion structure 16 interrupts the force transmission path between the steering rod assembly 17 and the transmission structure 15, it also restricts the free rotation of the steering rod assembly 17 by cooperating with the folding vehicle body 10 or the additional structural components of the folding vehicle body 10. This avoids the situation where electronic steering cannot be controlled due to the free rotation of the steering rod assembly 17. In addition, the restriction on the steering rod assembly 17 also facilitates the electronic steering device 14 to accurately obtain the current rotation angle so as to provide feedback to the external control terminal.

[0037] Furthermore, the conversion structure 16 includes: a conversion pin 161, which is slidably disposed at the bottom of the direction rod assembly 17; one end of the transmission structure 15 extends outward and is provided with a pin hole 151 adapted to the conversion pin 161; the conversion pin 161 is also provided with a lever 162. Specifically, the adapter structure includes a conversion pin 161, which is slidably disposed at the bottom of the steering rod assembly 17. The sliding direction can be selected according to the structural configuration. In this embodiment, it is preferably sliding up and down. At the same time, a pin hole 151 is provided at the end of the transmission structure 15 that is not connected to the steering structure 12. The sliding of the conversion pin 161 will insert into or disengage from the pin hole 151. When inserted, the steering rod assembly 17 is connected to the transmission structure 15 through the conversion pin 161 to form a force transmission path. At this time, the steering rod assembly 17 can drive the transmission structure 15 to move synchronously. When disengaged from the pin hole 151, the force transmission path between the steering rod assembly 17 and the transmission structure 15 is interrupted. At this time, the steering rod assembly 17 and the transmission structure 15 can move freely.

[0038] There are two ways to control the sliding of the conversion pin 161: one is manual operation, such as... Figure 7 As shown, a lever 162 is fixedly connected to the conversion pin 161. The lever 162 allows the conversion pin 161 to be manually moved up and down. To ensure the conversion pin 161 is in a stable engagement or disengagement state, a limiting groove 171 corresponding to "manual steering" and "electric steering" is provided on the side of the steering lever assembly 17 with the conversion structure 16. One limiting groove 171 is used to keep the conversion pin 161 in the highest position in electric steering mode, and the other limiting groove 171 is used to keep the conversion pin 161 in the lowest position. In the low position, the steering is in manual mode. The limiting groove 171 is adapted to the lever 162. When the conversion pin 161 slides to the highest or lowest position, the conversion pin 161 can be rotated to make the lever 162 enter the corresponding limiting groove 171, thereby limiting the sliding of the conversion pin 161 and keeping it at a predetermined height. Whether switching from manual steering to electric steering or from electric steering to manual steering, the transmission structure 15 must be reset so that the conversion pin 161 can be aligned with the pin hole 151 of the transmission structure 15.

[0039] It should be noted that, in order to prevent the conversion pin 161 from sliding freely due to vibration or shaking when the folding frame 10 is in motion, a spring can also be fitted on the conversion pin 161 to limit the free sliding of the conversion pin 161; and a clamp device 108 (not shown in the figure) is also provided at the end of the folding frame 10 where the steering rod assembly 17 is located. The clamp device 108 is used to limit the rotation of the steering rod assembly in the vertical plane to prevent the steering rod assembly from rotating freely vertically in the riding state. The clamp device 108 can improve the safety of riding and prevent the inconvenience of manual steering due to the free vertical rotation of the steering rod assembly 17.

[0040] Another way to control the sliding of the conversion pin 161 is to provide a connecting drive device 163 at one end of the steering rod where the conversion structure 16 is located. This connecting drive device 163 is connected to the conversion structure 16 and can drive the conversion structure 16 to establish or interrupt the force transmission between the steering rod assembly 17 and the transmission structure 15. The connecting drive device 163 is an electrical component, such as a cylinder or a motor 164. When using a cylinder, the extended end of the cylinder can be directly connected to the lever 162. The sliding of the control conversion pin 161 is extended or retracted. When a motor 164 is used, a transmission screw 165 is connected to the output end of the motor 164. The transmission screw 165 passes through the lever 162 and is threadedly connected to the lever 162. When the transmission screw 165 rotates, it drives the conversion pin 161 to slide through the lever 162. The connecting drive device 163 is electrically connected to the controller 111. The controller 111 receives the command from the control end and controls the connecting drive device 163 to run according to the command. In this way, there is no need to manually move the conversion pin 161 and there is no need to set the limit groove 171.

[0041] Furthermore, a pin hole is also provided at the position corresponding to the conversion pin 161 on the adapter 132 of the support assembly 13; specifically, a pin hole 151 adapted to the conversion pin 161 can also be provided on the support assembly 13. Under this structure, the connecting drive device 163 can be set with multiple positions: One is that the drive conversion pin 161 is inserted into the pin hole 151 of the transmission structure 15, and the conversion pin 161 is completely disengaged from the pin hole 151 of the support component 13, thus entering the manual steering mode. Secondly, the drive conversion pin 161 completely disengages from the pin hole 151 of the transmission structure 15 and is inserted into the pin hole 151 of the support assembly 13. Through the connection between the conversion pin 161 and the support assembly 13, the rotation of the steering rod assembly 17 is restricted to ensure safety during use and enter the electric steering mode. Thirdly, the drive conversion pin 161 is in the middle of the two modes mentioned above, that is, the bottom end of the conversion pin 161 is not completely disengaged from the pin hole 151, and the top part is located in the pin hole 151 on the support component 13. At this time, the steering rod assembly 17 cannot drive the transmission structure 15 to rotate, and the electric steering device 14 also cannot drive the transmission structure 15 to rotate, so as to lock the steering. This method is used to prevent the steering wheel 101 from rotating laterally and causing the steering structure 12 to twist when moving the folded vehicle body 10 in the folded state, thus affecting the overall service life of the steering structure 12.

[0042] It should be noted that, since the transmission structure 15 rotates, to prevent misalignment between the conversion pin 161 and the pin hole 151 during mode switching, thus hindering smooth switching, the connecting drive device 163 acquires the rotation angle value of the current transmission structure 15 in real time via an angle sensor and controls the movement of the conversion pin 161 based on this angle value. The angle sensor acquires the angle values ​​of the transmission structure under both electronic and manual steering. When a mode change is required, the connecting drive device 163 will only drive the conversion pin 161 to move after the transmission structure 15 is at a predetermined angle value and after receiving a control signal, allowing the conversion pin 161 to smoothly insert into the pin hole 151 to change the mode. If the transmission structure 15 is not within the predetermined angle value, it will not operate, and the control terminal will prompt that the transmission structure 15 needs to be reset. Both the end of the conversion pin 161 and the end of the pin hole 151 are chamfered, allowing for a predetermined deviation between them while ensuring smooth engagement.

[0043] Furthermore, a seat plate 107 is detachably connected to the top of the folding vehicle body 10; Specifically, at least one seat 107 can be detachably fixed to the top of the folding vehicle body 10. The seat 107 allows the user to sit on it and drive the folding vehicle body 10 to move, thus improving the user experience of the folding vehicle body 10.

[0044] Furthermore, seat support rods 105 are connected to the top two sides of the folding vehicle body 10, and the seat plate 107 is detachably connected to the seat support rods 105. Specifically, in order to better support the seat plate 107, seat support rods 105 are detachably connected to the top sides of the folding vehicle body 10. The front and rear ends of the seat support rods 105 are connected to the folding vehicle body 10, which can support the seat plate 107 and prevent the side support 103 of the folding vehicle body 10 from expanding and deforming outward under the pressure of the cargo.

[0045] To further enhance the user experience, foot pedals can be rotatably mounted on both sides of the end of the folding vehicle body 10 where the steering rod assembly 17 is located. A brake foot brake can be installed on one of the foot pedals. The brake foot brake is connected to the mechanical braking structure of the steering wheel 101 and / or the directional wheel 102. The brake foot brake controls the mechanical braking structure to brake, further improving the safety of use.

[0046] In summary, this application enables both manual and remote electronic steering by installing an electronic steering device 14 on the steering column assembly 17, thereby enhancing the versatility of steering control, allowing users greater freedom of movement, meeting diverse usage needs, providing a solid and stable foundation for the development of subsequent functions, and exhibiting a simple structure and reasonable design.

[0047] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A campervan with motor-driven steering, characterized in that, include: The folding vehicle body comprises a frame with accommodating cavities formed by multiple side supports. A foldable bottom support is connected to the middle of the folding vehicle body. One end of the folding vehicle body has a steering wheel, and the other end has a directional wheel. The steering wheel and / or the directional wheel are drive wheels and are electrically connected to the control component, which controls the operation of the drive wheels and provides power. Two steering wheels are provided, connected by a steering structure. A steering rod assembly is also provided at the end of the folding vehicle body with the steering wheels. A transmission structure is connected to the bottom of the steering rod assembly, which is connected to the steering structure and controls its movement. An electric steering device is also provided at the bottom of the steering rod assembly. The output of the electric steering device is connected to the transmission structure, which controls the movement of the steering structure. The electric steering device receives external control signals to control the movement of the steering structure and drives the steering wheels to turn through the steering structure. The electric steering device is also electrically connected to the control component.

2. The campervan with motor-driven steering according to claim 1, characterized in that, The steering column assembly is further provided with a switching structure, which is used to switch between the steering column assembly controlling the movement of the transmission structure and the electronic steering device controlling the movement of the transmission structure.

3. The campervan with motor-driven steering according to claim 1, characterized in that, The folding vehicle body has a support assembly connected to one end of the steering wheel, and the bottom of the steering rod assembly is rotatably connected to the support assembly. The steering rod assembly can rotate relative to the support assembly on a horizontal plane.

4. The campervan with motor-driven steering according to claim 3, characterized in that, The support assembly includes two directional struts, which are rotatably mounted on both sides of the end of the folding vehicle body. The ends of the two directional struts away from the connection with the folding vehicle body are connected to adapters, and the bottom end of the directional strut assembly is rotatably connected to the adapters.

5. The campervan with motor-driven steering according to claim 1, characterized in that, A steering arm is also provided on one side of the steering wheel, and the steering structure is rotatably connected to the steering arm.

6. The campervan with motor-driven steering according to claim 2, characterized in that, The conversion structure includes: a conversion pin, which is slidably disposed at the bottom of the direction rod assembly; one end of the transmission structure extends outward and is provided with a pin hole adapted to the conversion pin; the conversion pin is also provided with a lever.

7. The campervan with motor-driven steering according to claim 2, characterized in that, The steering rod assembly is provided with a connecting drive device at one end of the conversion structure. The connecting drive device is connected to the conversion structure and is used to drive the steering structure to establish or interrupt the force transmission between the steering rod assembly and the transmission structure.

8. The campervan with motor-driven steering according to claim 7, characterized in that, The drive device includes a motor, the output end of which is connected to a lead screw, which is connected to the conversion structure in a transmission connection.

9. The campervan with motor-driven steering according to claim 1, characterized in that, The top of the folding vehicle body is detachably connected to a seat plate.

10. The campervan with motor-driven steering according to claim 9, characterized in that, The top two sides of the folding vehicle body are connected to seat support rods, and the seat plate is detachably connected to the seat support rods.

11. The campervan with motor-driven steering according to claim 2, characterized in that, When the transmission structure is in a state of motion controlled by the electronically controlled steering device, the conversion structure restricts the rotation of the steering rod assembly in the horizontal plane.

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