Folding and manned structure of steering system of folding trailer
By designing a combination of folding frame, steering wheel and steering structure in a folding trailer, the problem of difficult steering of existing trailers is solved, and a more stable and safe steering effect is achieved.
Patent Information
- Application Number
- CN202322548943.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-03-06
- Filing Date
- 2023-09-19
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-09-19
AI Technical Summary
Existing trailers are difficult to control when steering, especially on loads and oblique uphill roads, resulting in lost control of the direction and inconvenient use.
A folding trailer steering system is designed, using a folding frame, a direction wheel, a wheel direction swing arm, a steering structure and a direction rod assembly. The steering wheel is controlled by a steering structure composed of multiple steering arms to adapt to the collection of the folding frame. fold.
It realizes simpler steering control, improves vehicle driving stability and use safety, and reduces the difficulty of use under load conditions.
Smart Images
Figure CN222432321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trailers, in particular to a folding and passenger-carrying structure of a steering system of a folding trailer. Background Art
[0002] A foldable trailer is a foldable and towable cargo vehicle. It is widely used in transporting things because of its simple use, ability to carry cargo, convenient storage, and time-saving and labor-saving properties. It is now often used in outdoor activities or short-distance transportation.
[0003] At present, existing trailers, whether foldable or not, usually use oblique fork universal wheels for easy steering. Due to its structural design (the wheel axle and the rotation axis are not on the same vertical line), the oblique fork universal wheel is more convenient and labor-saving in steering than the traditional straight fork universal wheel (the wheel axle and the rotation axis are on the same vertical line). It will rotate according to the direction of force transmission, but at the same time, due to its free steering, it will be more difficult to control than the straight fork universal wheel, especially on a loaded and inclined uphill road. At this time, the oblique fork universal wheel will turn in the direction of the sliding force due to the influence of the sliding force. In order to avoid the trailer from losing control, it can only be pulled in the opposite direction by manpower, which brings inconvenience to use. Moreover, trailers are usually used outdoors. When the road surface is rough, the free movement characteristics of the inclined fork universal wheel will cause the inclined fork universal wheel to turn by itself when it is squeezed by the uneven road surface. Although the inclined fork universal wheel can be straightened by increasing the forward force at this time, the inclined fork universal wheel is in a slanting state due to the squeezing, and the resistance of the uneven road surface is added. At this time, the force applied needs to be greater than various resistances, especially under heavy load, which greatly affects the use experience of the trailer.
[0004] Therefore, it is urgent to design a folding and manning structure of a folding trailer steering system to overcome the above-mentioned deficiencies of one or more prior arts. Utility Model Content
[0005] The technical solution adopted by the utility model to solve the above technical problems is: a folding and passenger-carrying structure of a folding trailer steering system, characterized in that it also includes a folding frame, a steering wheel is connected to the bottom of the folding frame, the steering wheel is connected to the steering structure through a wheel steering swing arm, the steering structure can be folded, and the steering structure is also connected to a steering rod assembly, and the steering rod assembly is used to control the movement of the steering structure.
[0006] In a preferred embodiment, a connecting device is connected to one side of the folding frame, and the connecting device includes a frame support seat, the steering wheel is connected to the frame support seat, and the end of the steering rod assembly is connected to the frame support seat.
[0007] In a preferred embodiment, the steering structure includes: a direction guide rod and a steering arm, the steering arm is provided with a plurality of steering arms, the plurality of steering arms are rotatably connected end to end in sequence, one end of the direction guide rod is movably connected to the steering arm located in the middle, and the other end of the direction guide rod is connected to the direction rod assembly.
[0008] In a preferred embodiment, the steering rod assembly comprises: a steering rod support arm and a steering rod, wherein at least two steering rod support arms are provided, the steering rod is located between the two steering rod support arms, and the bottom is rotatably connected to the steering rod support arm, one end of the steering rod support arm adjacent to the steering rod is rotatably connected to the steering rod via a steering bearing, and one end of the steering rod support arm away from the steering rod is rotatably connected to the folding frame.
[0009] In a preferred embodiment, the upper end of the folding frame is connected to the seat board via a seat board support frame, and the seat board and the folding frame are detachably arranged.
[0010] In a preferred embodiment, the direction rod is connected to the steering bearing, and a folding structure is provided on the direction rod, and the folding structure is used to enable the direction rod to bend in a predetermined direction. A pull rod conversion sleeve is also slidably provided on the direction rod, and the pull rod conversion sleeve is used to limit the folding of the direction rod.
[0011] In a preferred embodiment, one end of the folding frame provided with the direction rod assembly is also rotatably connected to a pedal.
[0012] The beneficial effects of the utility model are as follows: a steering structure composed of a plurality of steering arms is arranged between two steering wheels, the steering of the steering wheels is controlled by the steering structure, and the steering structure can be converted between an unfolded state and a folded state to adapt to the folding of the folding frame. The control is simple, convenient and practical. By adopting this structure, the steering wheels can be replaced with straight-forked universal wheels, thereby improving the driving stability of the vehicle, increasing the safety of use, and making the steering simpler. The design is reasonable, the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the steering structure and the steering rod assembly of the utility model;
[0015] Figure 3 for Figure 2 Schematic diagram of the folded state;
[0016] Figure 4 for Figure 2 Schematic diagram of the steering state;
[0017] Figure 5 It is a schematic diagram of the bending of the direction rod of the utility model.
[0018] In the figure:
[0019] 10. Folding frame; 11. Connecting device; 111. Frame support seat; 112. Limiting slot; 12. Steering wheel; 121. Wheel steering arm; 13. Steering rod assembly; 131. Steering rod support arm; 132. Steering rod; 133. Steering bearing; 134; Tie rod conversion sleeve; 14. Steering structure; 141. Steering guide rod; 142. Steering arm. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0021] In the description of the embodiments of the present utility model, 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, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, 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 utility model, 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 utility model.
[0022] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0023] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0024] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. Therefore, the utility model is not limited to the specific embodiments disclosed below.
[0025] like Figure 1-Figure 5 As shown, the utility model provides a folding and manned structure of a folding trailer steering system, characterized in that it also includes a folding frame 10, a steering wheel 12 is connected to the bottom of the folding frame 10, the steering wheel 12 is connected to a steering structure 14 through a wheel direction swing arm 121, the steering structure 14 can be folded, and the steering structure 14 is also connected to a steering rod assembly 13, and the steering rod assembly 13 is used to control the movement of the steering structure 14;
[0026] Specifically, the folding frame 10 is a gathered type of vehicle body, which is arched upward in the middle and folded toward the middle from four directions, front, back, left, and right. The gathered type of vehicle body folded will occupy less space than other types of folding frames 10. The folding frame 10 is provided with four connecting devices 11, and the four connecting devices 11 are surrounded by a rectangle. Each connecting device 11 includes a frame support seat 111, and the frame support seat 111 is used to connect the frame. A steering wheel 12 is provided under each frame support seat 111, and a steering wheel 12 is provided at the top of the steering wheel 12. There is a wheel direction swing arm 121, and a steering structure 14 is connected between the two wheel direction swing arms 121 at the same end. The steering structure 14 is used to control the rotation of the steering wheel 12. The steering structure 14 is also connected to a direction rod assembly 13. The direction rod assembly 13 can rotate horizontally relative to the folding frame 10. The direction rod assembly 13 is used to control the movement of the steering structure 14. When the direction rod assembly 13 rotates, it drives the steering structure 14 to swing left and right, and the steering structure 14 drives the steering wheel 12 to rotate left and right, thereby controlling the rotation of the steering wheel 12.
[0027] It should be noted that since the steering wheels 12 are connected together by the steering structure 14 and their rotation is driven by the steering structure 14, the steering wheels 12 can be straight fork universal wheels, which can be more stable than the inclined fork universal wheels during driving and cannot rotate freely. They will only rotate when subjected to a force in a specific direction, improving the safety of use. Moreover, in the case of large loads, the straight fork universal wheels are easier to steer.
[0028] Further, the steering structure 14 includes: a direction guide rod 141 and steering arms 142. There are several steering arms 142, and several of the steering arms 142 are sequentially rotatably connected end to end. One end of the direction guide rod 141 is movably connected to the steering arm 142 located in the middle, and the other end of the direction guide rod 141 is connected to the direction rod assembly 13;
[0029] Specifically, the steering structure 14 includes a direction guide rod 141 and several steering arms 142. The several steering arms 142 are sequentially rotatably connected end to end, enabling the several steering arms 142 to rotate and fold relative to each other to adapt to the folding of the folding frame 10. One end of the direction guide rod 141 is rotatably connected to the steering arm 142 in the middle, and the other end of the direction guide rod 141 is fixedly connected to the direction rod assembly 13. When the direction rod assembly 13 rotates, it drives the direction guide rod 141 to swing. The swing of the direction guide rod 141 drives the steering arms 142 to move left and right, thereby driving the steering wheels 12 connected to the steering arms 142 to rotate left and right, realizing the control of steering. Among them, preferably five steering arms 142 are provided, and the two steering arms 142 at both ends are of equal length, and the two steering arms 142 connected to the two ends are of equal length, so that the steering arms 142 form a shape similar to the Chinese character "ji" when folded.
[0030] It should be noted that the rotation centers of the direction guide rod 141 and the steering wheel 12 are located on a straight line. In this structure, there is no need to provide a chute on the direction guide rod 141. Otherwise, since the movement trajectory of the direction guide rod 141 is arc-shaped and the steering arm 142 moves in a straight line, a chute needs to be opened on the direction guide rod 141 to avoid movement conflicts and inability to rotate.
[0031] Further, the direction rod assembly 13 includes: direction rod support arms 131 and a direction rod 132. There are at least two direction rod support arms 131. The direction rod 132 is located between the two direction rod support arms 131 and is rotatably connected to the direction rod support arms 131 at the bottom. One end of the direction rod support arm 131 adjacent to the direction rod 132 is rotatably connected to the direction rod 132 through a steering bearing 133, and the end of the direction rod support arm 131 away from the direction rod 132 is rotatably connected to the folding frame 10;
[0032] Specifically, the direction rod assembly 13 includes: a direction rod support arm 131, and the direction rod support arm 131 is provided with two. One end of the direction rod support arm 131 is rotatably connected to the frame support seat 111 and can be vertically rotated relative to the frame support seat 111. The two direction rod support arms 131 are arranged opposite to each other, and the direction rod 132 is arranged between the two direction rod support arms 131. The direction rod 132 is connected to the direction rod support arm 131 through a steering bearing 133, so that the direction rod support arm 131 can rotate relative to the direction rod 132. When the folding frame 10 needs to be folded, the direction rod 132 is pulled first, so that it drives the direction support arm from a horizontal state to an inclined state with a certain angle. At this time, when the folding frame 10 is folded, the distance between the two sides will be reduced when the folding frame 10 is folded. At this time, the direction rod support arm 131 will be squeezed. Under the squeezing, the direction rod support arm 131 will be lifted up and changed from an inclined state to a vertical state, and at the same time drive the direction rod 132 to rise, so as to avoid limiting the folding of the folding frame 10.
[0033] Furthermore, in the present embodiment, the upper end of the folding frame 10 is connected to a seat board (not shown in the figure) via a seat board support frame (not shown in the figure), and the seat board and the folding frame 10 are detachably arranged; specifically, the seat board and the folding frame 10 are detachably arranged, and when the seat board is not needed, the seat board can be removed to avoid affecting the loading of goods or the folding of the folding frame 10.
[0034] Furthermore, the direction rod 132 is connected to the steering bearing 133, and a folding structure is provided on the direction rod 132, and the folding structure is used to bend the direction rod 132 in a predetermined direction. A pull rod conversion sleeve 134 is also slidably provided on the direction rod 132, and the pull rod conversion sleeve 134 is used to limit the folding of the direction rod 132;
[0035] Specifically, the direction rod 132 is inserted into the steering bearing 133 and can rotate horizontally relative to the steering bearing 133 to drive the direction guide rod 141 to swing left and right. A folding structure is provided above the steering bearing 133 of the direction rod 132. The folding structure enables the direction rod 132 to rotate vertically relative to the steering bearing 133 so that the direction rod 132 is inclined to facilitate towing. A pull rod conversion sleeve 134 is also movably provided on the direction rod 132. The pull rod conversion sleeve 134 is used to limit the vertical rotation of the direction rod 132. When the pull rod conversion sleeve 134 covers the folding structure, the direction rod 132 is restricted by the pull rod conversion sleeve 134, that is, it cannot be rotated vertically through the folding structure. When the direction rod 132 needs to rotate vertically, it only needs to move the pull rod conversion sleeve 134 to make it out of the range of the folding structure.
[0036] Furthermore, in this embodiment, one end of the folding frame 10 provided with the direction rod assembly 13 is also rotatably connected to a pedal (not shown in the figure);
[0037] Specifically, in order to improve the riding comfort of the user, a limit slot 112 is provided on the frame support seat 111, and a pedal is rotatably connected in the limit slot 112. The pedal can be folded down to a horizontal state when in use, so that the user can place his feet on the pedal when riding. When not in use, it can be rotated and folded on the folding frame 10. Two pedals are provided, one on each side.
[0038] In summary, the utility model sets a steering structure 14 composed of multiple steering arms 142 between the two steering wheels 12, and controls the steering of the steering wheels 12 through the steering structure 14. The steering structure 14 can be converted between the unfolded state and the folded state to adapt to the folding of the folding frame 10. The control is simple, convenient and practical. By adopting this structure, the steering wheel 12 can be replaced with a straight fork universal wheel, which improves the driving stability of the vehicle, has high safety in use, and makes steering simpler. The design is reasonable, the structure is simple, and the cost is low.
[0039] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.
Claims
1. A folding and passenger carrying structure of a folding trailer steering system, characterized in that: It also includes a folding frame, a steering wheel is connected to the bottom of the folding frame, the steering wheel is connected to the steering structure through a wheel steering swing arm, the steering structure is foldable, and the steering structure is also connected to a steering rod assembly, and the steering rod assembly is used to control the movement of the steering structure.
2. The folding and passenger carrying structure of the folding trailer steering system according to claim 1, characterized in that: A connecting device is connected to one side of the folding frame, and the connecting device includes a frame support seat, the direction wheel is connected to the frame support seat, and the end of the direction rod assembly is connected to the frame support seat.
3. The folding and passenger carrying structure of the folding trailer steering system according to claim 1, characterized in that: The steering structure includes: a direction guide rod and a steering arm. The steering arms are provided with a plurality of steering arms, which are rotatably connected head to tail in sequence. One end of the direction guide rod is movably connected to the steering arm located in the middle, and the other end of the direction guide rod is connected to the direction rod assembly.
4. The folding and passenger carrying structure of the folding trailer steering system according to claim 3, characterized in that: The steering rod assembly comprises: a steering rod support arm and a steering rod, wherein at least two steering rod support arms are provided, the steering rod is located between the two steering rod support arms, and the bottom is rotatably connected to the steering rod support arm, one end of the steering rod support arm adjacent to the steering rod is rotatably connected to the steering rod via a steering bearing, and one end of the steering rod support arm away from the steering rod is rotatably connected to the folding frame.
5. The folding and passenger carrying structure of the folding trailer steering system according to claim 1, characterized in that: The upper end of the folding frame is connected to the seat plate through a seat plate support frame, and the seat plate and the folding frame are detachably arranged.
6. The folding and passenger carrying structure of the folding trailer steering system according to claim 4, characterized in that: The direction rod is connected to the steering bearing. A folding structure is provided on the direction rod, and the folding structure is used to bend the direction rod in a predetermined direction. A pull rod conversion sleeve is also slidably provided on the direction rod, and the pull rod conversion sleeve is used to limit the folding of the direction rod.
7. The folding and passenger carrying structure of the folding trailer steering system according to claim 1, characterized in that: The folding frame is provided with one end of the direction rod assembly and is rotatably connected with a pedal.