Anti-tire-abrasion steering structure of foldable electric camping wagon and foldable electric camping wagon

Abstract

An anti-tire-abrasion steering structure of a foldable electric camping wagon and a foldable electric camping wagon. The anti-tire-abrasion steering structure of the foldable electric camping wagon comprises: a swing member (10), wherein two ends of the swing member (10) are respectively rotatably connected to first linkages (11) that can respectively horizontally rotate relative to the swinging member (10); when rotating, a direction rod (30) drives the swing member (10) to swing in the horizontal direction; the swinging member (10) drives the two first linkages (11) to horizontally move; the first linkages (11) drive wheels to turn; the movement distances of the two first linkages (11) are not the same; and the two first linkages (11) enable the turning angles of two wheels to be different. By means of swing of the swing member (10), the two wheels have different turning angles during turning, so as to achieve an Ackerman steering effect, reduce abrasion of the wheels, and prolong the service life of the wheels; due to the Ackermann steering effect, a vehicle body is more stable during turning; the steering structure is also foldable, so as to adapt to the folding of the vehicle body, improving applicability; and the arrangement of the steering structure also provides for the vehicle body the foundation for subsequent upgrading and multi-functionalization.

Description

Anti-wear tire steering structure of folding electric camper and folding electric camper Technical Field

[0001] The present invention relates to the technical field of camping vehicles, in particular to an anti-wear tire steering structure of a folding electric camping vehicle and the folding electric camping vehicle. Background Art

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

[0003] Existing camper vans usually adopt the method of universal front wheels and fixed rear wheels. The universal method can improve the steering convenience and labor-saving of camper vans, but universal wheels are more suitable for vehicles with light loads. Once the load is heavy, it is easy to have the risk of difficulty in controlling the direction, especially in some inclined uphill sections. Under the influence of the downward force, the vehicle body will always be in a state of sliding down. Moreover, universal wheels are suitable for use on flat roads. Once used on uneven roads, they are easily squeezed by the road surface and shake. For this reason, a structure of fixed wheel steering is also designed in the prior art, that is, universal wheels are used on flat roads. The steering wheel is changed to the same structure as the rear directional wheel. The difference from the rear directional wheel is that the front directional wheel can rotate horizontally to achieve steering. Its steering is controlled by a connecting rod. The connecting rod is connected to the steering rod. The left and right displacement of the connecting rod is controlled by the swing or rotation of the steering rod. The connecting rod then controls the rotation of the front directional wheel. This method can effectively avoid the above situation. However, this method will have the problem that when turning, the two front wheels rotate in parallel. At this time, the axles of the four wheels are difficult to intersect at one point. Therefore, the outer wheels will have heavier tire wear, resulting in a short wheel service life.

[0004] Therefore, it is urgent to design a tire wear-proof steering structure for a folding electric camper and a folding electric camper to overcome one or more of the above-mentioned deficiencies of the prior art. Summary of the Invention

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an anti-tire wear steering structure for a folding electric camper, characterized in that it includes: a swinging member, both ends of the swinging member are rotatably connected to a first connecting rod, the two first connecting rods can respectively rotate horizontally relative to the swinging member, the swinging member is used to be connected to an external direction rod, the two first connecting rods are used to be rotatably connected to the external wheels, when the direction rod rotates, the swinging member is driven to swing in the horizontal direction, the swinging member drives the two first connecting rods to move horizontally, the first connecting rod drives the wheels to rotate, the movement distances of the two first connecting rods are not equal, and the two first connecting rods make the rotation angles of the two wheels unequal.

[0006] In a preferred embodiment, the swinging member is in a "T" shape or a "V" shape.

[0007] In a preferred embodiment, a transfer shaft is inserted into both ends of the swing member, the swing member can rotate horizontally relative to the transfer shaft, the first connecting rod is rotationally connected to the transfer shaft, and the first connecting rod can rotate vertically relative to the transfer shaft.

[0008] In a preferred embodiment, each first link is rotatably connected to a second link at one end away from the swinging member, the second link is rotatably connected to the wheel, the second link can rotate horizontally relative to the wheel, and the first link can rotate vertically relative to the second link.

[0009] In a preferred embodiment, when the swing member is in a "V" shape, adjacent ends of the two first connecting rods are discontinuous.

[0010] On the other hand, the present application also provides a foldable electric camper, characterized in that it includes: a gathering-type folding body, a directional wheel is provided at the bottom of one end of the folding body, and a steering wheel is provided at the bottom of the other end of the folding body, and the steering wheel can rotate in the horizontal direction, and the folding body is provided with a steering wheel on both sides of the end of the steering wheel, which is rotatably connected to the steering struts, and the two steering struts are connected to the end connected to the folding body through an adapter, and the adapter is rotatably connected to a steering rod assembly, and an anti-wear tire steering structure as described in any one of the above embodiments is connected between the two steering wheels, the swinging member is fixedly connected to the bottom end of the steering rod assembly, and the steering rod assembly controls the lateral rotation of the two steering wheels through the anti-wear tire steering structure, and the opposite sides of the two steering wheels are also respectively provided with mutually cooperating wheel rotation limiters, and a seat device is provided on the top of the folding body.

[0011] In a preferred embodiment, the wheel rotation limiting member includes: a pin sleeve and a latch; the pin sleeve is provided on one of the steering wheels, the latch is provided on the other steering wheel, and the pin sleeve is opposite to the latch.

[0012] In a preferred embodiment, one end of the pin sleeve is trumpet-shaped.

[0013] In a preferred embodiment, the steering wheel is provided with a fork, the steering wheel is located inside the fork and is rotatably connected to the fork, a wheel swing arm is provided on the side of the fork facing the directional wheel, and the anti-tire steering structure is rotatably connected to the wheel swing arm.

[0014] In a preferred embodiment, a limiting member for limiting the rotation angle of the steering wheel is provided at the connection between the folding vehicle body and the steering wheel, at one end of the steering rod assembly connected to the swing member, or on the wheel fork.

[0015] In a preferred embodiment, the seat device includes: a connecting rod, one end of which is rotatably connected to the folding body, and the connecting rod can be rotated laterally and vertically relative to the folding body. A seat is provided in the middle of the side bracket of the folding body, and the other end of the connecting rod is engaged with the seat. The seat is provided with a locking structure for fixing the connecting rod, and the seat plate is detachably connected above the connecting rod.

[0016] In a preferred embodiment, adjacent ends of the two directional struts are respectively provided with meshing synchronous teeth, and the top wall of the adapter is further provided with an avoidance hole.

[0017] In a preferred embodiment, the direction rod assembly includes: a first folding member, a second folding member, and a direction rod; one end of the first folding member is rotatably connected to one end of the second folding member, the first folding member is also rotatably connected to the adapter, the end of the first folding member away from the second folding member is connected to the swinging member, the second folding member can rotate within a predetermined vertical angle relative to the first folding member, the direction rod is passed through the first folding member and the second folding member, and can slide in the first folding member and the second folding member, and a limiting device is also provided on the second folding member for limiting the sliding of the direction rod. When the direction rod is located in the first folding member, the rotation of the second folding member relative to the first folding member is limited.

[0018] In a preferred embodiment, at least two limiting holes are further provided on the direction rod, and the limiting device cooperates with the limiting holes.

[0019] In a preferred embodiment, a handle is provided on the top of the direction rod, and the handle forms a "T" shape with the direction rod. The two ends of the handle are respectively rotatably connected to the folding rod, and a handle sleeve is provided on the sliding sleeve of each folding rod to limit the rotation of the folding rod. A speed shift finger is provided on the end of one of the handles away from the folding rod, and a brake finger is provided on the end of the other handle away from the folding rod.

[0020] In a preferred embodiment, the folding body is further provided with a clamp device at one end where the steering rod is located, and the clamp device is used to limit the vertical rotation of the steering rod.

[0021] In a preferred embodiment, the anti-tire wear steering structure is foldable, and the anti-tire wear steering structure is folded along with the folding of the folding vehicle body.

[0022] The beneficial effects of the present invention are: different rotation angles are achieved when the two wheels rotate through the swinging of the swinging member, so as to realize the Ackerman steering effect, reduce wheel wear, and improve the service life of the vehicle road. In addition, due to the Ackerman steering effect, the vehicle body is more stable when turning. At the same time, the steering structure can be folded to adapt to the folding of the vehicle body, thereby improving applicability. The setting of the steering structure also provides a basis for subsequent upgrading of the vehicle body to multifunctionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of the present invention;

[0024] FIG2 is a structural diagram of the Ackerman implementation principle of the present invention;

[0025] FIG3 is a schematic structural diagram of the combination of the first aspect and the second aspect of the present invention;

[0026] FIG4 is a schematic structural diagram of the foldable vehicle body of the present invention;

[0027] FIG5 is a schematic structural diagram of a directional support rod according to the present invention;

[0028] FIG6 is a schematic structural diagram of a wheel rotation limiting member according to the present invention;

[0029] FIG7 is a schematic structural diagram of a direction rod assembly according to the present invention;

[0030] FIG8 is an exploded view of the direction rod assembly of the present invention;

[0031] FIG9 is a schematic structural diagram of the locking structure of the present invention;

[0032] FIG10 is a schematic diagram of another shape of the direction swing arm of the present invention;

[0033] FIG11 is a schematic diagram of towing according to the second aspect of the present invention;

[0034] FIG12 is a schematic diagram of a folded state of the first aspect of the present invention;

[0035] FIG13 is a schematic diagram of the folded state of the second aspect of the present invention.

[0036] .

[0037] In the picture:

[0038] 10. Swinging member; 11. First connecting rod; 12. Second connecting rod; 13. Adapter shaft;

[0039] 20. Folding body; 21. Fixed wheel; 22. Steering wheel; 221. Wheel fork; 222. Wheel swing arm; 223. Limiting member; 23. Steering support rod; 24. Adapter; 241. Avoidance hole; 25. Synchronizing gear; 26. Wheel rotation limiter; 27. Pin sleeve; 28. Latch; 29. ​​Clamp device;

[0040] 30. Steering lever assembly; 31. First folding member; 32. Second folding member; 33. Steering lever; 34. Limiting device; 35. Limiting hole; 36. Grip; 37. Folding lever; 38. Grip cover; 39. Brake shifter; 391. Shifter;

[0041] 40. Seat assembly; 41. Connecting rod; 42. Detent seat; 43. Locking structure; 44. Pin; 45. Locking member; 46. Tension spring; 47. Protrusion; 48. Detent slot; 49. Seat plate; DETAILED DESCRIPTION

[0042] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. 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. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0044] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0045] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0046] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing at various points in 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 "comprises," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized. The present invention is therefore not limited to the specific embodiments disclosed below.

[0047] In a first aspect, as shown in Figures 1-2, an anti-wear tire steering structure for a foldable electric camper is provided, comprising: a swing member 10, wherein both ends of the swing member 10 are rotatably connected to first connecting rods 11, and the two first connecting rods 11 can respectively rotate horizontally relative to the swing member 10, the swing member 10 is used to be connected to an external direction rod 33, and the two first connecting rods 11 are used to be rotatably connected to external wheels. When the direction rod 33 rotates, the swing member 10 is driven to swing horizontally, and the swing member 10 drives the two first connecting rods 11 to move horizontally. The first connecting rod 11 drives the wheels to rotate. The movement distances of the two first connecting rods 11 are unequal, and the two first connecting rods 11 cause the rotation angles of the two wheels to be unequal.

[0048] Specifically, the swing member 10 is used to be fixedly connected to the direction rod 33 of the external vehicle body. When the direction rod 33 rotates, it drives the swing member 10 to swing. The first connecting rod 11 is rotatably connected to the two ends of the swing member 10. The first connecting rod 11 is used to connect to the external wheel, wherein the connection between the first connecting rod 11 and the wheel is a rotational connection. The first connecting rod 11 can rotate horizontally relative to the wheel and the swing member 10 respectively. When the swing member 10 swings, it drives the two first connecting rods 11 to move left and right. The first connecting rod 11 drives the wheel to rotate left and right. In order to avoid the rotation angle of the two wheels To achieve the positive Ackerman turning angle, the connection points of the swing member 10 and the two first connecting rods 11 are respectively located on the straight lines from the horizontal rotation axis of the two rear wheels to the center of the interval between the two front wheels. At this time, the turning angle of the two wheels is positive Ackerman turning, which can maximize the effect of Ackerman steering. This structure is suitable for folding electric campers with the front and rear ends moving closer to the middle in a folding manner.

[0049] Furthermore, the swing member 10 is in a "T" shape or a "V" shape; specifically, when the connection point between the swing member 10 and the two first links 11 is located on a straight line from the horizontal rotation axis of the two rear wheels to the center of the interval between the two front wheels, the swing member 10 includes but is not limited to a "T" shape, a "V" shape, a "Y" shape, etc., and the swing member adopts any of the aforementioned shapes, as shown in Figure 1, so that the connection point between the two first links 11 and the swing member 10 is in a separated state. In this state, when the two first links 11 move, due to the separation of the connection point, a difference in movement distance occurs between the two first links 11, thereby making the rotation angles of the two wheels inconsistent, thereby achieving the Ackerman steering effect.

[0050] Furthermore, when the swing member 10 is in a "V" shape, the adjacent ends of the two first connecting rods 11 are discontinuous; specifically, when the swing member 10 is in a "V" shape, the two first connecting rods 11 are discontinuously arranged, which does not affect the Ackerman steering and makes steering more labor-saving.

[0051] Furthermore, in this embodiment, a transfer shaft 13 is inserted into each end of the swing member 10, and the swing member 10 can rotate horizontally relative to the transfer shaft 13. The first connecting rod 11 is rotatably connected to the transfer shaft 13, and the first connecting rod 11 can rotate vertically relative to the transfer shaft 13. The swing member 10 is located above the first connecting rod 11.

[0052] Specifically, in order to make the steering structure adapt to the convergence type vehicle body, a transfer shaft 13 is inserted at both ends of the swing member 10, wherein the swing member 10 can only rotate horizontally relative to the transfer shaft 13, and the two first connecting rods 11 are rotatably connected to the transfer shaft 13. The two first connecting rods 11 can rotate vertically relative to the transfer shaft 13, and the upper and lower positions of the first connecting rod 11 and the swing member 10 are adapted according to the folding direction of the first connecting rod 11. If the connection between the first connecting rod 11 and the swing member 10 is rotated upward, the first connecting rod 11 is located below the swing member 10 to avoid interference between the swing member 10 and the first connecting rod 11 during rotation, and vice versa.

[0053] It should be pointed out that in addition to using the adapter shaft 13, a fisheye bearing or a universal joint can also be used. When using a fisheye bearing or a universal joint, the swing member 10 does not need to be located above the first connecting rod 11, but can be flush with the first connecting rod 11, and the effect is the same.

[0054] Furthermore, one end of each first link 11 away from the swing member 10 is rotatably connected to a second link 12, and the second link 12 is rotatably connected to the wheel. The second link 12 can rotate horizontally relative to the wheel, and the first link 11 can rotate vertically relative to the second link 12.

[0055] Specifically, in order to realize the folding of the steering structure, the end of the first link 11 away from the swing member 10 is also rotatably connected to the second link 12. The second link 12 can rotate vertically relative to the first link 11, and the end of the second link 12 away from the first link 11 is horizontally rotatably connected to the wheel. Therefore, without affecting the folding of the steering structure, the wheel can be driven to rotate through the first link 11 and the second link 12, thereby realizing Ackerman steering and folding at the same time, thereby adapting to the convergent type of vehicle body and improving practicality.

[0056] In a second aspect, as shown in FIG3-4, a foldable electric camper is provided, which includes a foldable body 20. The foldable body 20 is a gathering type body. The foldable body 20 is a frame with upper and lower openings formed by side bracket assemblies that can be folded in four directions, front, back, left, and right. At least one foldable bottom bracket is connected to the middle bottom of the frame. When gathered, the middle bottom bracket arches upward, and the front, back, left, and right sides are brought together and folded toward the middle from four directions. The gathering type body 20 occupies less space after folding than other types of folding bodies 20. Two fixed wheels 21 are connected to the bottom of one end of the folding body 20. The directions of the two fixed wheels 21 are fixed. Two directional wheels 22 are connected to the bottom of the other end of the folding body 20. The two directional wheels 22 can rotate in the transverse direction relative to the folding body 20 to control the moving direction of the folding body 20. The anti-wear tire steering structure in the above embodiment is rotatably connected between the two directional wheels 22. The anti-wear tire steering structure controls the lateral rotation of the two directional wheels 22. In order to facilitate the control of the movement of the anti-wear tire steering structure, a directional wheel is provided on the folding body 20. The two ends of the wheel 22 are rotatably connected to the direction struts 23 on both sides. The two direction struts 23 are connected together through an adapter 24 away from the end that is rotatably connected to the folding body 20, and the two direction struts 23 can rotate vertically relative to the adapter 24. At the same time, the adapter 24 is also rotatably connected to the direction rod assembly 30. The direction rod assembly 30 can rotate horizontally relative to the adapter 24. The bottom end of the direction rod assembly 30 is fixedly connected to the swing member 10. When the direction rod assembly 30 rotates horizontally, it synchronously drives the swing member 10 to rotate. The swing member 10 is rotated due to the rotation of the direction rod assembly 30. The rotational connection of the first connecting rod 11 causes the swing member 10 to rotate relative to the first connecting rod 11 when it rotates, and since the left and right positions of the swing member 10 change when it rotates, the first connecting rod 11 will be prompted to move. The movement of the first connecting rod 11 drives the steering wheel 22 to rotate laterally, thereby realizing steering control; since in this embodiment, the folding body 20 is a gathering type body, in order to enable the folding body 20 to be folded smoothly, the anti-wear tire steering structure adopts the above-mentioned method of being connected with the second connecting rod 12, so that the anti-wear tire steering can be folded as the folding body 20 is folded.

[0057] It should be pointed out that since the steering wheel 22 is connected through the anti-wear tire steering structure, its rotation is driven by the anti-wear tire steering structure. Therefore, the steering wheel 22 can be a straight fork universal wheel, that is, the wheel axis and the rotation axis are on the same vertical line. During driving, it can be more stable than the oblique fork universal wheel and cannot rotate freely. It will only rotate when subjected to force in a specific direction, thereby improving safety in use. In addition, under heavy load conditions, the steering of the straight fork universal wheel is simpler.

[0058] During the folding process, when the folding body 20 is folded, the bottom bracket in the middle of the folding body 20 is lifted upward to make it arch upward. During the arching process, the four sides of the folding body 20 gather toward the middle. At the same time, since a direction support rod 23 is provided, in order to avoid affecting the folding of the folding body 20, the direction rod assembly 30 is lifted upward while the folding body 20 is folded. The direction rod assembly 30 drives the adapter 24 and the swing member 10 to move upward. The adapter 24 drives the two direction support rods 23 to rotate upward. The swing member 10 drives the first connecting rod 11 to rotate upward relative to the second connecting rod 12, so that the folding body 20 can be folded smoothly until it is shown in Figure 13; when unfolding, it is only necessary to apply force to the folding body 20 to spread its four sides outward. The direction support rod 23 and the anti-wear tire steering structure are unfolded together under the drive of the folding body 20.

[0059] As shown in Figure 6, since the steering wheel 22 is not limited after the folding body 20 is folded, if movement occurs, the steering wheel 22 will rotate. At this time, although the anti-wear tire steering structure will limit the steering wheel 22 from rotating too much to a certain extent, it cannot completely limit it. In the process of rotation of the steering wheel 22, the anti-wear tire steering structure will be driven to move. This movement is performed after folding, which is easy to cause damage to the anti-wear tire steering structure. To avoid this situation, as shown in the figure, the two steering wheels 22 connected to the anti-wear tire steering structure are respectively provided with mutually cooperating wheel rotation limiters 26. The wheel rotation limiters 26 will cooperate together when the two steering wheels 22 are close to each other, and the wheel rotation limiters 26 limit the free rotation of the steering wheel 22 after folding, thereby protecting the anti-wear tire steering structure from damage.

[0060] In order to further improve the convenience of use of the foldable electric camper and enhance the user experience, a seat device 40 is also provided on the top of the foldable body 20. Through the setting of the seat device 40, the user can sit on the foldable electric camper. The foldable electric camper of this embodiment is electrified, which is a prior art and will not be described in detail here. Through electrification and cooperation with the seat device 40, riding can be achieved.

[0061] Furthermore, as shown in Figure 5, in order to achieve synchronous rotation of the two direction struts 23, a synchronous tooth 25 is provided at the adjacent end of the two direction struts 23. The synchronous tooth 25 is arc-shaped, and the two synchronous teeth 25 are engaged with each other. The engagement of the synchronous teeth 25 will mutually restrict the two direction struts 23 and always maintain equal movement, thereby ensuring that the adapter 24 is always in a horizontal state, and then the direction rod assembly 30 is vertical. Since the direction strut 23 will drive the synchronous tooth 25 to rotate, the top of the synchronous tooth 25 will interfere with the adapter at this time. To avoid this situation, an avoidance hole 241 corresponding to the synchronous tooth 25 is provided on the adapter 24. When the direction strut 23 rotates, the synchronous tooth 25 will pass through the adapter 24 to avoid affecting the rotation of the direction strut 12.

[0062] Furthermore, as shown in Figure 6, the wheel rotation limiting member 26 includes: a pin sleeve 27 and a latch 28; the pin sleeve 27 is fixed or limited in rotation and is set on one of the steering wheels 22, and the latch 28 is fixed or limited in rotation and is set on the other steering wheel 22. When the two steering wheels 22 are close to each other, the latch 28 will be inserted into the pin sleeve 27, thereby limiting the rotation of the two steering wheels 22 through the cooperation of the pin sleeve 27 and the latch 28, and the folded vehicle body is tied up by the strap. Under the restraint of the strap, the pin sleeve 27 and the latch 28 on the steering wheel 22 are tightly inserted together to avoid separation, and with the cooperation of the pin sleeve 27 and the latch 28, the purpose of towing can also be achieved, thereby increasing convenience.

[0063] In order to improve the smoothness of the cooperation between the pin sleeve 27 and the plug 28, the end of the pin sleeve 27 facing the plug 28 is trumpet-shaped. The trumpet-mouth design improves the convenience of inserting the plug 28 into the pin sleeve 27.

[0064] Furthermore, as shown in FIG1 , the steering wheel 22 is provided with a wheel fork 221 , the steering wheel 22 is located in the wheel fork 221 and is rotatably connected to the wheel fork 221 , a wheel swing arm 222 is provided on the side of the wheel fork 221 facing the directional wheel, and the anti-wear tire steering structure is rotatably connected to the wheel swing arm 222 ;

[0065] Specifically, the steering wheel 22 is rotatably connected to the folding body 20 through a wheel fork 221. In order to facilitate the anti-tire wear steering structure to control the lateral rotation of the steering wheel 22, a wheel swing arm 222 is provided on the top side of the wheel fork 221. In order to improve the overall aesthetics and avoid exposure of the anti-tire wear steering structure, the wheel swing arm 222 is provided on the side of the wheel fork 221 facing the directional wheel, so that the anti-tire wear steering structure is located directly below the folding body 20.

[0066] Furthermore, as shown in FIG1 , a limiting member 223 for limiting the rotation angle of the steering wheel 22 is provided at the connection between the folding body 20 and the steering wheel 22 or at one end of the steering rod assembly 30 connected to the swing member 10 or on the wheel fork 221 ;

[0067] Specifically, in order to prevent the steering wheel 22 from being difficult to return to its original position after excessive rotation, two limiting members 223 are further provided on each wheel fork 221. The limiting members 223 can be welded bumps or screws threadedly connected to the wheel fork 221. When the steering wheel 22 rotates to a certain angle, the second connecting rod 12 will abut against the limiting members 223. At this time, the limiting member 223 will not be able to continue to rotate, thereby preventing the steering wheel 22 from being unable to return to its original position through the movement of the transmission rod due to excessive steering. The situation; and the position where the limit member 223 is set at the connection between the folding body 20 and the steering wheel 22 refers to the connection seat where the folding body 20 and the steering wheel 22 are connected; and the limit member 223 is set at one end of the direction rod 33 connected to the swing member 10, which means that extending limit members 223 are respectively provided on both sides of the bottom end of the direction rod 33, and the limit member 223 does not rotate horizontally with the direction rod 33, so that after the direction rod 33 rotates to a certain angle, the limit member 223 supports the swing member 10 and prevents it from continuing to rotate.

[0068] Furthermore, as shown in FIG3 , the seat device 40 includes: a connecting rod 41 , one end of which is rotatably connected to the folding body 20 , and the connecting rod 41 can rotate laterally and vertically relative to the folding body 20 ; a holder 42 is provided in the middle of the side bracket of the folding body 20 ; the other end of the connecting rod 41 is engaged with the holder 42 ; the holder 42 is provided with a locking structure 43 for fixing the connecting rod 41 ;

[0069] Furthermore, as shown in FIG9 , the locking structure 43 includes: a pin 44, the pin 44 being rotatably connected to the holder 42, the pin 44 being integrally formed with a locking member 45, a tension spring 46 being connected to the bottom of the locking member 45, the tension spring 46 being used to tilt the locking member 45 in a predetermined direction, a protrusion 47 being provided on a side of the locking member 45 corresponding to the tilting direction, and a slot 48 being provided at an end of the connecting rod 41 away from the end rotatably connected to the folding body 20, the slot 48 being adapted to fit the locking member 45;

[0070] Specifically, the connecting rod 41 is arranged on both sides of the folding body 20, and at least one connecting rod 41 is arranged on each side. One end of the connecting rod 41 is rotatably connected to the folding body 20, and the other end is clamped with the middle part of the side bracket of the folding body 20. If the side bracket is a single "X" structure, it is directly clamped with the tail end of the folding body 20. When in use, the connecting rod 41 can be placed on the folding body 20. The connecting rod 41 is used to limit the forward, backward, left and right movement of the frame of the folding body 20, thereby improving the stability of the folding body 20 during use. At the same time, the seat plate 49 can be supported by the connecting rod 41 to carry people. It only needs to be detachably fixed to the connecting rod 41.

[0071] In this embodiment, the connecting rod 41 is in the shape of two sections, one section is rotatably connected to the folding body 20 and can be horizontally rotated relative to the folding body 20, and the two sections are rotatably connected and can be rotated vertically. When the connecting rod 41 is horizontally rotated by a predetermined angle, the other section can be hung on the folding body 20. Through this structure, the connecting rod 41 does not need to be removed when the folding body 20 is folded, and no additional space is occupied. A base 42 is provided on the middle part of the side bracket of the folding body 20, and a locking structure 43 is provided on the base 42. The locking structure 43 includes a pin 44, and a locking member 45 is integrally connected to the pin 44. The bottom of the locking member 45 is connected to a tension spring 46, and the tension spring 46 is arranged in the base 42. The tension spring 46 is used to keep the locking member 45 in an inclined position at all times. The locking member 45 is in the state of being inclined, and a protrusion 47 is provided on the side of the locking member 45 corresponding to the inclined direction, and a slot 48 is provided on the end of the connecting rod 41 away from the rotation connection with the folding body 20. The size of the locking member 45 is adapted to the slot 48. When the connecting rod 41 is engaged with the pin 44, the locking member 45 is located in the connecting rod 41 through the slot 48. Moreover, since the locking member 45 is inclined and has the protrusion 47, the protrusion 47 will be above the bottom wall of the connecting rod 41 when the locking member 45 is inclined, thereby limiting the upward rotation of the connecting rod 41 through the protrusion 47. When the lock needs to be released, the pin 44 can be rotated to convert the locking member 45 from the inclined state to the vertical state. At this time, the protrusion 47 is out of the motion range of the bottom wall of the connecting rod 41, thereby releasing the restriction.

[0072] Furthermore, as shown in Figures 7-8 and 11, the direction rod assembly 30 includes: a first folding member 31, a second folding member 32, and a direction rod 33; the first folding member 31 and the second folding member 32 are both hollow cylindrical, the first folding member 31 and the second folding member 32 are rotatably connected, and the second folding member 32 can be vertically rotated within a predetermined unidirectional angle relative to the first folding member 31, preferably less than or equal to 90° to facilitate conversion between a vertical state and an inclined state, wherein the first folding member 31 is rotatably connected to the adapter 24 and can be horizontally rotated relative to the adapter 24, but cannot be rotated vertically, the direction rod 33 is disposed in the first folding member 31 and the second folding member 32, and can slide in the first folding member 31 and the second folding member 32, and limits the first folding member 31 and the second folding member 32 by its position. The second folding member 31 is fixed to the left and right sides of the folding member 32 so that the folding member 32 can move in a straight line and move in a straight line, thereby preventing the folding member 32 from moving in a straight line.

[0073] Among them, the limiting device 34 includes but is not limited to a spring pin. In this embodiment, a spring pin is preferred, that is, a pin with a spring inside. The tail end of the limiting device 34 may be provided with a pull ring. The limiting device 34 is fixed on the second folding part 32, and its head end will penetrate into the second folding part 32 under the action of its own spring to achieve limiting. When the limiting needs to be released, the limiting device 34 can be pulled out through the pull ring. At this time, the direction rod 33 loses the restriction of the limiting device 34 and can slide in the second folding part 32 and the first folding part 31.

[0074] It should be pointed out that the shape of the direction rod 33 can be set to non-circular or circular according to the use requirements. The non-circular structure allows the direction rod 33 to drive the first folding part 31 and the second folding part 32 inside that are adapted to the shape of the direction rod 33 to rotate horizontally synchronously when rotating horizontally, so as to achieve other required functions; while the circular shape can be used when the direction rod 33 is only used for trailers and has no other use requirements. In this application, a non-circular structure is preferred to meet other use requirements.

[0075] Furthermore, since the direction rod 33 can slide freely in the first folding part 31 and the second folding part 32, in order to avoid affecting the user experience, a limiting device 34 is also provided on the second folding part 32. At the same time, at least two limiting holes 35 for cooperating with the limiting device 34 are opened on the direction rod 33. The purpose of the two limiting holes 35 is, one is used to limit the direction rod 33 in the first folding part 31, and the other is used to limit the direction rod 33 in the second folding part 32, so that it can be fixed in both states.

[0076] Preferably, there are three limiting holes 35, and the three limiting holes 35 are respectively suitable for: the bottom end of the direction rod 33 is located in the second folding part 32, the bottom end of the direction rod 33 is located in the first folding part 31, and the bottom end of the direction rod 33 passes through the outside of the first folding part 31; the third situation is used to lower the height of the direction rod 33 when storing.

[0077] Furthermore, in this embodiment, a handle 36 is further provided at the top of the direction rod 33. The handle 36 and the direction rod 33 form a "T"-shaped structure. Folding rods 37 are rotatably connected to the two end portions of the handle 36. The folding rods 37 can be rotated vertically relative to the handle 36 to extend or shorten the length of the handle 36. A handle sleeve 38 is slidably sleeved on each folding rod 37. The handle sleeve 38 can limit the vertical rotation of the folding rod 37 while being convenient for the user to hold. When it is necessary to rotate the folding rod 37 vertically, the handle 38 can be slid away from the connection between the folding rod 37 and the handle 36, and then the folding rod 37 can be rotated; in order to adapt to the electric, a speed shift dial 391 and a brake dial 39 are also fixedly connected to the handle 36, and the speed shift dial 391 and the brake dial 39 are electrically connected to the control system of the folding electric camper. The speed shift dial 391 is used to control the driving speed of the electric camper in real time, and the brake dial 39 is used to brake, and the braking method can also be a mechanical brake.

[0078] In order to further improve the stability of the steering rod assembly 30 in the riding state, a clamp device 29 is also provided on one end of the folding body 20 where the steering rod assembly 30 is provided. The clamp device 29 is used to limit the vertical movement of the steering rod assembly 30, wherein the clamp device 29 includes but is not limited to: a clamp (not shown in the figure), a clamping strip (not shown in the figure), one end of the clamping strip is hinged to one end of the clamp, and the other end of the clamp is provided with a slot 48 for the clamping strip to be placed therein, and a spring pin is also installed on the end of the clamp where the slot 48 is provided. When the steering rod assembly 30 is placed in the clamp, the clamping strip is placed in the slot 48 away from the end hinged to the clamp, and the spring pin is used to limit the movement of the clamping strip, thereby limiting the vertical rotation of the steering rod assembly 30.

[0079] Furthermore, as shown in Figure 10, since the folding body 20 is of a gathering type, its front end bracket will be in an "X" shape. When the folding body 20 is folded, the two sides will gather toward the middle. At this time, the swing member 10 rises under the drive of the direction rod assembly 30. In this case, the front end bracket of the folding body 20 is likely to clamp the swing member 10. Under the restriction of the swing member 10, the folding body 20 will not be able to be completely folded into place. To avoid this situation, the swing member 10 can be set to an "S" shape. Since the front end bracket of the folding body 20 is spaced one front and one rear, the "S" design can leave a movement space for the front end bracket of the folding body 20 when the swing member 10 is at a predetermined height, avoiding interference with the front end bracket of the folding body 20, so that it can be folded into place.

[0080] In summary, the present application realizes different rotation angles of the two wheels through the swinging of the swinging member 10, so as to realize the Ackerman steering effect, reduce wheel wear, and improve the service life of the vehicle road. In addition, due to the Ackerman steering effect, the vehicle body is more stable when turning. At the same time, the steering structure can be folded to adapt to the folding of the vehicle body, thereby improving applicability. The setting of the steering structure also provides the vehicle body with a foundation for subsequent upgrades to multifunctionality.

[0081] The present invention is not limited to what is described in the specification and embodiments, and additional advantages and modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein without departing from the spirit and scope of the general concept defined by the claims and their equivalents.

Claims

1. A tire wear-proof steering structure for a foldable electric camper, characterized in that: include: A swinging member, both ends of which are rotatably connected with first connecting rods, the two first connecting rods can respectively rotate horizontally relative to the swinging member, the swinging member is used to connect with an external direction rod, the two first connecting rods are used to rotate with external wheels, the direction rod rotates and drives the swinging member to swing in the horizontal direction, the swinging member drives the two first connecting rods to move horizontally, the first connecting rod drives the wheels to rotate, the movement distances of the two first connecting rods are not equal, and the two first connecting rods make the rotation angles of the two wheels unequal.

2. The anti-wear tire steering structure of the foldable electric camper according to claim 1, characterized in that: The swinging member is in a "T" shape or a "V" shape.

3. The anti-wear tire steering structure of the foldable electric camper according to claim 2, characterized in that: The two ends of the swinging member are respectively inserted with a transfer shaft, and the swinging member can rotate horizontally relative to the transfer shaft. The first connecting rod is rotationally connected to the transfer shaft, and the first connecting rod can rotate vertically relative to the transfer shaft.

4. The anti-wear tire steering structure of the foldable electric camper according to claim 3, characterized in that: One end of each first connecting rod away from the swinging member is rotatably connected to a second connecting rod, the second connecting rod is rotatably connected to the wheel, the second connecting rod can rotate horizontally relative to the wheel, and the first connecting rod can rotate vertically relative to the second connecting rod.

5. The anti-wear tire steering structure of the foldable electric camper according to claim 2, characterized in that: When the swinging member is in a "V" shape, the adjacent ends of the two first connecting rods are discontinuous.

6. A foldable electric camper, characterized in that: include: A gathering-type folding body, a directional wheel is provided at the bottom of one end of the folding body, and a direction wheel is provided at the bottom of the other end of the folding body, and the direction wheel can rotate in the horizontal direction. The folding body has the direction wheel at both sides, and the direction struts are rotatably connected to the ends thereof, and the two direction struts are connected via an adapter away from the ends connected to the folding body, and the adapter is rotatably connected to a direction rod assembly, and an anti-wear tire steering structure as described in any one of claims 1 to 5 is connected between the two direction wheels, the swinging piece is fixedly connected to the bottom end of the direction rod assembly, and the direction rod assembly controls the lateral rotation of the two direction wheels through the anti-wear tire steering structure, and the opposite sides of the two direction wheels are also respectively provided with wheel rotation limiters that cooperate with each other, and a seat device is provided on the top of the folding body.

7. The foldable electric camper according to claim 6, characterized in that: The wheel rotation limiting member comprises: a pin sleeve and a latch pin; the pin sleeve is arranged on one of the steering wheels, the latch pin is arranged on the other steering wheel, and the pin sleeve is opposite to the latch pin.

8. The foldable electric camper according to claim 7, characterized in that: One end of the pin sleeve is in a trumpet shape.

9. The foldable electric camper according to claim 6, characterized in that: The steering wheel is provided with a wheel fork, the steering wheel is located in the wheel fork and is rotationally connected to the wheel fork, a wheel swing arm is provided on the side of the wheel fork facing the directional wheel, and the anti-wear tire steering structure is rotationally connected to the wheel swing arm.

10. The foldable electric camper according to claim 9, characterized in that: A limiting member for limiting the rotation angle of the steering wheel is provided at the connection point between the folding vehicle body and the steering wheel, or at one end where the steering rod assembly is connected to the swinging member, or on the wheel fork.

11. The foldable electric camper according to claim 6, characterized in that: The seat device includes: a connecting rod, one end of which is rotatably connected to the folding body, and the connecting rod can rotate laterally and vertically relative to the folding body. A socket is provided in the middle of the side bracket of the folding body, and the other end of the connecting rod is engaged with the socket. A locking structure for fixing the connecting rod is provided on the socket, and a seat plate is detachably connected to the top of the connecting rod.

12. The foldable electric camper according to claim 6, characterized in that: The adjacent ends of the two direction support rods are respectively provided with meshing synchronous teeth, and the top wall of the adapter is also provided with an avoidance hole.

13. The foldable electric camper according to claim 6, characterized in that: The direction rod assembly includes: a first folding piece, a second folding piece, and a direction rod; one end of the first folding piece is rotatably connected to one end of the second folding piece, the first folding piece is also rotatably connected to the adapter, the end of the first folding piece away from the second folding piece is connected to the swinging piece, the second folding piece can rotate within a predetermined vertical angle relative to the first folding piece, the direction rod is penetrated by the first folding piece and the second folding piece, and can slide in the first folding piece and the second folding piece, the second folding piece is also provided with a limiting device for limiting the sliding of the direction rod, and when the direction rod is located in the first folding piece, the rotation of the second folding piece relative to the first folding piece is limited.

14. The foldable electric camper according to claim 13, characterized in that: The direction rod is also provided with at least two limiting holes, and the limiting device cooperates with the limiting holes.

15. The foldable electric camper according to claim 13, characterized in that: A handle is provided on the top of the direction rod, and the handle forms a "T" shape with the direction rod. The two ends of the handle are rotatably connected to the folding rods respectively. A handle sleeve is provided on the sliding sleeve of each folding rod, and the handle sleeve limits the rotation of the folding rod. A speed shift finger is provided at the end of one of the handles away from the folding rod, and a brake finger is provided at the end of the other handle away from the folding rod.

16. The foldable electric camper according to claim 6, characterized in that: The folding vehicle body is further provided with a clamp device at one end where the direction rod is located, and the clamp device is used to limit the vertical rotation of the direction rod.

17. The foldable electric camper according to claim 6, characterized in that: The swinging member is in an "S" shape.

18. The foldable electric camper according to claim 11, characterized in that: The locking structure includes: a pin shaft, which is rotatably connected to the base, and the pin shaft is integrally formed with a locking piece. A tension spring is connected to the bottom of the locking piece, and the tension spring is used to tilt the locking piece in a predetermined direction. A protrusion is provided on the side of the locking piece corresponding to the tilting direction, and a slot is provided at the end of the connecting rod away from the end rotatably connected to the folding body, and the slot is adapted to the locking piece.

19. The foldable electric camper according to claim 6, characterized in that: The anti-tire wear steering structure can be folded, and the anti-tire wear steering structure is folded along with the folding of the folding vehicle body.

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