Folding type manned trailer

Abstract

The folding type manned trailer comprises a first bottom frame and a second bottom frame, supporting vertical rods are connected to the two sides of the ends, away from each other, of the first bottom frame and the second bottom frame correspondingly, a side support is rotationally connected between the two supporting vertical rods on the same side, and seat supporting rods are rotationally connected to the top ends of the two supporting vertical rods at the front end correspondingly; the other end of each seat supporting rod is connected with the top of the corresponding reinforcing vertical rod, and a supporting piece is detachably connected between the two seat supporting rods. A rotatable tail frame is further arranged between the two supporting vertical rods at the rear end; by the adoption of the method, the reinforcing vertical rods are arranged in the middles of the side supports, the lateral stress capacity of the side supports is improved through the supporting transverse rods, meanwhile, the seat supporting rods are arranged above the side supports, so that the stability of the side supports is further improved, the stability of the trailer is ensured, the manned function of the trailer is achieved through the supporting pieces, and the trailer is high in stability. And the manned safety coefficient is high, and the load capacity is large, so that different use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of electric trailers, in particular to a foldable passenger trailer. Background Art

[0002] A camper van is a foldable, towable cargo vehicle. It 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 camping cars can be divided into two types according to the folding method. One is a folding type, that is, the frame is folded from the front and rear ends to the middle, and the bottom of the frame is arched from the middle and folded; the other is a gathering type, that is, the frame is gathered from the front, back, left and right directions to the middle, and the bottom of the frame is arched; the gathering type is characterized by a small space occupied after folding, but a relatively complex structure and a relatively high cost, while the folding type does not need to consider the gathering in the left and right directions, so the structure is relatively simple and the cost is low; in order to improve the convenience of use, the existing camping car upgrades the traditional manual camping car to an electric camping car. Through the drive of electricity, the camping car can greatly save the user's physical strength when in use, as shown in patent No. CN202322836690.1, but this type of camping car does not have the function of carrying people. If people are forced to use the accommodation space of the camping car, it will be inconvenient to control the direction, and safety accidents are very likely to occur, and the stability of this type of car body is low.

[0004] Therefore, it is urgent to design a foldable passenger trailer 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: to provide a foldable passenger trailer, characterized in that it comprises: a first base frame and a second base frame, wherein one end of the first base frame and the second base frame are rotatably connected;

[0006] The first base frame and the second base frame are connected to support vertical rods on both sides of the ends away from each other, and a side bracket is rotatably connected between the two support vertical rods on the same side. A reinforcing vertical rod is provided in the middle of each side bracket, and the front and rear ends of the side bracket can be moved and retracted toward the position of the reinforcing vertical rod;

[0007] The bottom ends of the two support vertical rods at one end are fixedly connected with fixed wheels, and the bottom ends of the two support vertical rods at the other end are rotatably connected with direction wheels;

[0008] End cross bars are respectively connected between the top and bottom ends of the two support vertical bars connected to the direction wheels and the bottom ends of the two support vertical bars connected to the fixed wheels;

[0009] The end cross bar located at the bottom ends of the two supporting vertical bars connected to the direction wheel is also movably connected to a direction bar assembly, and the direction bar assembly can rotate vertically and horizontally relative to the connected end cross bar, and the bottom end of the direction bar assembly is connected to the direction wheel, and the direction bar assembly controls the rotation of the direction wheel;

[0010] The top ends of the two support vertical rods connected to the direction wheels are rotatably connected to seat support rods respectively, one end of each seat support rod away from the rotatably connected support vertical rod is connected to the top of the corresponding reinforcement vertical rod, and a support member is detachably connected between the two seat support rods;

[0011] A limiting device for limiting the separation of the seat support rod is also provided on the top of the reinforcing vertical rod.

[0012] In a preferred embodiment, the bottom ends of the two supporting vertical rods connected to the direction wheel are also rotatably connected to pedals.

[0013] In a preferred embodiment, first hooks are respectively provided on both sides of one end where the first base frame is connected to the second base frame, and second hooks are respectively provided on both sides of one end where the second base frame is connected to the first base frame, and the first hooks cooperate with the second hooks to clamp the supporting cross bar.

[0014] In a preferred embodiment, a clamp device is further provided at the middle portion of the end cross bar located at the top ends of the two supporting vertical bars connecting the direction wheels, and the clamp device is used to limit the vertical rotation of the direction bar assembly.

[0015] In a preferred embodiment, the clamp device includes: a clamp sleeve and a limiting member; the clamp sleeve is adapted to the direction rod assembly, the clamp sleeve is provided with an opening, and the limiting member is provided at the opening for closing the opening.

[0016] In a preferred embodiment, a stabilizing rod is further provided between the top ends of the two supporting vertical rods connected to the fixed wheel, one end of the stabilizing rod is rotatably connected to one of the supporting vertical rods, and the other end of the stabilizing rod is detachably connected to the other supporting vertical rod.

[0017] In a preferred embodiment, a disassembly limiting slide is provided at one end of the stabilizing rod away from the rotational connection with one of the supporting vertical rods. The disassembly limiting slide is slidably connected to the stabilizing rod and cooperates with the corresponding supporting vertical rod to limit the disassembly of the stabilizing rod.

[0018] In a preferred embodiment, the top ends of the two support vertical rods connected to the fixed wheel are rotatably connected to the seat support rods respectively.

[0019] In a preferred embodiment, the side bracket includes: a first strut, a second strut, a third strut, and a fourth strut; the middle part of the first strut is rotatably connected to the middle part of the second strut, the middle part of the third strut is rotatably connected to the middle part of the fourth strut, one end of the first strut and the second strut is rotatably connected to the corresponding supporting vertical rod, and the other end is rotatably connected to the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut is rotatably connected to the corresponding supporting vertical rod, and the other end is rotatably connected to the corresponding reinforcing vertical rod, and each of the supporting vertical rods can be telescopically arranged.

[0020] In a preferred embodiment, the side bracket includes: a first strut, a second strut, a third strut, a fourth strut, and a transfer rod; the first strut and the second strut are cross-arranged and can rotate at the intersection, the third strut and the fourth strut are cross-arranged and can rotate at the intersection, one end of the first strut is rotatably connected to the bottom end of the support vertical rod connected to the direction wheel, one end of the second strut is rotatably connected to the transfer rod, and the other end of the transfer rod is rotatably connected to the top end of the support vertical rod connected to the direction wheel, the other ends of the first strut and the second strut are respectively rotatably connected to the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut are rotatably connected to the corresponding reinforcing vertical rod, the other end of the third strut is connected to the transfer rod, the end of the transfer rod away from the third strut is rotatably connected to the top of the support vertical rod connected to the fixed wheel, and the end of the fourth strut away from the reinforcing vertical rod is rotatably connected to the bottom end of the support vertical rod connected to the fixed wheel.

[0021] In a preferred embodiment, the direction wheel and / or the fixed wheel are operated under electric control, and the direction lever assembly can control the operation of the direction wheel and / or the fixed wheel.

[0022] In a preferred embodiment, a rotatable tail frame is further provided between the two supporting vertical rods connected to the fixed wheels.

[0023] In a preferred embodiment, one end of the tail frame is rotatably connected to a supporting vertical rod on one side, and the other end of the tail frame is provided with a rod sleeve adapted to the supporting vertical rod.

[0024] In a preferred embodiment, the bottom side of the tail frame is rotatably connected to the end cross bar, and rod sleeves adapted to the supporting vertical rods are respectively provided at both ends of the tail frame, and the two supporting vertical rods connected to the fixed wheel are respectively connected to connecting pieces, and one end of the connecting piece away from the supporting vertical rods is connected to the end of the tail frame.

[0025] In a preferred embodiment, a clamping sleeve adapted to the transfer rod is further provided at a position of the seat support rod corresponding to the transfer rod, and the seat support rod presses the transfer rod through the clamping sleeve.

[0026] In a preferred embodiment, the reinforcing vertical rod is telescopically arranged.

[0027] In a preferred embodiment, a supporting cross bar is fixedly connected between the bottom ends of the two reinforcing vertical bars.

[0028] The beneficial effects of the utility model are as follows: a reinforcing vertical rod is provided in the middle part of the side bracket, and the lateral force bearing capacity of the side bracket is improved by supporting the cross rod, and a seat support rod is provided above the side bracket to further improve the stability of the side bracket, thereby ensuring the stability of the trailer, and the passenger-carrying function of the trailer is realized by the setting of the support parts. The trailer has strong stability, high passenger safety factor, and large load capacity, thereby meeting different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the first base frame and the second base frame of the utility model;

[0031] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 It is a structural schematic diagram of the side bracket of the utility model;

[0033] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0034] Figure 6 It is a structural schematic diagram of the end cross bar of the utility model;

[0035] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0036] Figure 8 It is a structural schematic diagram of the direction rod assembly of the utility model;

[0037] Fig. 9 This is a diagram of the opening state of the first solution of the tailstock of the utility model;

[0038] Fig.10 This is a diagram of the opening state of the second solution of the tailstock of the utility model;

[0039] Fig.11 This is a diagram of the utility model in towing state;

[0040] Fig.12 This is a diagram of the utility model in a folded state.

[0041] In the figure:

[0042] 10. First chassis; 101. First hook; 11. Second chassis; 111. Second hook; 12. Supporting vertical rod; 13. Side bracket; 131. First support rod; 132. Second support rod; 133. Third support rod; 134. Fourth support rod; 135. Transfer rod; 14. Strengthening vertical rod; 141. Limiting device; 15. Supporting cross bar; 16. Fixed wheel; 17. Steering wheel; 18. End cross bar; 181. Clamp Device; 182, hoop; 183, limit piece; 184, opening; 19, steering rod assembly; 191, steering arm; 192, control rod; 20, seat support rod; 201, boss; 202, sleeve; 203, limit slot; 21, support member; 22, tail frame; 221, rod sleeve; 222, connecting member; 23, footrest; 24, stabilizer bar; 241, limited disassembly slide; 242, mounting hole; 243, spring. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] like Figure 1-Figure 8 As shown, the utility model provides a foldable passenger trailer, characterized in that it comprises: a first base frame 10 and a second base frame 11, wherein one end of the first base frame 10 and the second base frame 11 are rotatably connected;

[0049] The first base frame 10 and the second base frame 11 are connected to support vertical rods 12 on both sides of the ends away from each other, and a side bracket 13 is rotatably connected between the two support vertical rods 12 on the same side. A reinforcing vertical rod 14 is provided in the middle of each side bracket 13. The reinforcing vertical rod 14 can be telescopically arranged, and the front and rear ends of the side bracket 13 can be moved and retracted toward the position of the reinforcing vertical rod 14.

[0050] A supporting cross bar 15 is fixedly connected between the bottom ends of the two reinforcing vertical bars 14;

[0051] The bottom ends of the two support vertical rods 12 at one end are fixedly connected with a fixed wheel 16, and the bottom ends of the two support vertical rods 12 at the other end are rotatably connected with a direction wheel 17;

[0052] End cross bars 18 are respectively connected between the top and bottom ends of the two support vertical bars 12 connected to the direction wheels 17 and the bottom ends of the two support vertical bars 12 connected to the fixed wheels 16;

[0053] The end cross bar 18 located at the bottom ends of the two supporting vertical bars 12 connected to the direction wheel 17 is also movably connected to a direction bar assembly 19, and the direction bar assembly 19 can rotate vertically and horizontally relative to the connected end cross bar 18. The bottom end of the direction bar assembly 19 is connected to the direction wheel 17, and the direction bar assembly 19 controls the rotation of the direction wheel 17;

[0054] The top ends of the two support vertical rods 12 connected to the direction wheel 17 are rotatably connected to seat support rods 20, and one end of each seat support rod 20 away from the rotatably connected support vertical rod 12 is connected to the top of the corresponding reinforcement vertical rod 14, and a support member 21 is detachably connected between the two seat support rods 20;

[0055] A rotatable tail frame 22 is also provided between the two support vertical rods 12 connected with the fixed wheels 16;

[0056] Specifically, one end of the first base frame 10 is rotatably connected to one end of the second base frame 11, and the first base frame 10 and the second base frame 11 can be folded against each other. Support vertical rods 12 are respectively connected to both sides of the ends of the first base frame 10 and the second base frame 11 that are away from each other. The top and bottom ends of each support vertical rod 12 are fixedly connected to a connecting seat. A side bracket 13 is rotatably connected between the two support vertical rods 12 on the same side through the connecting seat. The front and rear ends of the side bracket 13 can be moved and retracted toward the middle respectively. A reinforcing vertical rod 14 is also provided in the middle of the side bracket 13. The reinforcing vertical rod 14 has an inner rod and an outer rod. The inner rod can be telescoped in the outer rod, and the top of the inner rod can be retracted. The bottom ends of the outer rods are both connected with connecting seats. When the front and rear ends of the side bracket 13 move toward the middle and retract, the inner rod of the reinforcing vertical rod 14 will be extended, and vice versa. A supporting cross bar 15 is also fixedly connected between the connecting seats at the bottom ends of the two reinforcing vertical rods 14. When the first base frame 10 and the second base frame 11 are laid flat, the supporting cross bar 15 restricts the first base frame 10 and the second base frame 11 from continuing to rotate downward, so that they remain in a flush state. Moreover, through the arrangement of the supporting cross bar 15 and the reinforcing vertical rod 14, the lateral side of the side bracket 13 will not be bent by the external force even if it is subjected to external force, thereby improving the stability and firmness of the side bracket 13.

[0057] In order to control the traveling direction of the trailer, a connecting seat at the bottom end of the two supporting vertical rods 12 at one end is rotatably connected with a steering wheel 17, and the direction of the steering wheel 17 can be adjusted by rotation. The connecting seat at the bottom end of the two supporting vertical rods 12 at the other end is fixedly connected with a fixed wheel 16, and the direction of the fixed wheel 16 is fixed. For the convenience of subsequent description, the end where the steering wheel 17 is located is defined as the front end, and the end where the fixed wheel 16 is located is defined as the rear end; in order to further improve the stability of the trailer, an end cross bar 18 is fixedly connected between the top and bottom ends of the two front supporting vertical rods 12 respectively, and an end cross bar 18 is also fixedly connected between the bottom ends of the two rear supporting vertical rods 12, wherein the end cross bar 18 can also be replaced with an "X"-shaped bracket, which can also have a stabilizing effect.

[0058] A direction rod assembly 19 is also provided at one end connected to the direction wheel 17, and the bottom of the direction rod assembly 19 is movably connected to the end cross bar 18 located at the bottom, and the direction rod assembly 19 can rotate horizontally and vertically relative to the end cross bar 18 connected thereto, and the vertical rotation is for the convenience of towing; at the same time, the bottom end of the direction rod assembly 19 is fixedly connected to a direction swing arm 191, and the end of the direction swing arm 191 away from the direction rod is rotatably connected to a control rod 192, and the two ends of the control rod 192 are respectively connected to the corresponding direction wheel 17, so that the direction wheel 17 can be easily dragged. When the steering rod assembly 19 rotates in the lateral direction, it drives the control rod 192 to move left and right, thereby driving the steering wheel 17 to rotate, and then realizing the control of the driving direction of the trailer. The rotation axis of the steering wheel 17 and the rotation axis of the steering rod assembly 19 are located on the same straight line. In order to improve the practicality of the trailer, a tail rack 22 is also rotatably provided between the two supporting vertical rods 12 at the rear end. The tail rack 22 realizes the rear opening of the trailer by rotating, so as to meet the use requirements when needed. When not needed, the stability of the top of the trailer can also be improved by the tail rack 22.

[0059] In order to realize the passenger carrying function, the top ends of the two support vertical rods 12 at the front end are rotatably connected with seat stays 20 respectively. There are two ways of rotating the seat stays 20, one is lateral rotation and the other is vertical rotation. The lateral rotation is to avoid the folding of the trailer as a whole, and the vertical rotation is to facilitate the use of the seat stays 20 according to needs; the other end of the seat stays 20 is detachably connected to the top end of the reinforcement vertical rod 14 on the corresponding side. When necessary, the seat stays 20 can be placed between the support vertical rod 12 and the reinforcement vertical rod 14. At the same time, the support member 21 can be detachably connected between the two seat stays 20. At this time, the user can sit on the support member 21 and control the direction of the steering wheel 17 through the steering rod assembly 19. To achieve carrying of people; when not needed, the support member 21 can be removed, and then the connection between the seat support rod 20 and the reinforcing vertical rod 14 can be released, and then the seat support rod 20 can be rotated horizontally to make the seat support rod 20 hang on the outside of the trailer, so as to avoid it affecting the folding of the trailer; when loading more cargo, only the support member 21 can be removed, and the seat support rod 20 can be used to improve the stability and firmness of the side bracket 13; the seat support rod 20 itself has a folding structure, so that the seat support rod 20 can be rotated in the vertical direction, and at the same time, one end of the seat support rod 20 with the folding structure is fixed to the connecting seat of the supporting vertical rod 12 by a screw, so that the seat support rod 20 can be rotated horizontally, and the seat support rod 20 can be removed when not needed.

[0060] It should be pointed out that the direction rod assembly 19 is provided with a speed control device, including but not limited to a brake; this is a prior art and will not be described in detail here.

[0061] Furthermore, the bottom ends of the two supporting vertical rods 12 connected to the direction wheel 17 are also rotatably connected to pedals 23 respectively;

[0062] Specifically, to further improve the riding experience, Figure 1 As shown, the bottom ends of the two front support vertical rods 12 are also rotatably connected to footrests 23, which can rotate within a predetermined angle. When needed, the footrests 23 can be laid flat, and the user can step on the footrests 23 when sitting on the support 21. When not in use, the footrests 23 can be directly erected to avoid taking up space.

[0063] Further, such as Figure 3 As shown, first hooks 101 are respectively provided on both sides of one end where the first base frame 10 is connected to the second base frame 11, and second hooks 111 are respectively provided on both sides of one end where the second base frame 11 is connected to the first base frame 10, and the first hooks 101 and the second hooks 111 cooperate to clamp the support cross bar 15;

[0064] Specifically, in order to further improve the stability of the side bracket 13 and prevent the side bracket 13 from shaking on the left and right sides during use, the side walls of the first base frame 10 abut against the side walls of the connecting seat at the bottom end of the reinforcing vertical rod 14, so that the two side brackets 13 are restricted from shaking and bending in opposite directions by the first base frame 10; at the same time, first hooks 101 are respectively integrated on both sides of the end where the first base frame 10 and the second base frame 11 are connected, and second hooks 111 are respectively integrated on both sides of the end where the second base frame 11 is connected to the first base frame 10. The first hook 101 and the second hook 111 are staggered to avoid affecting the first base frame 10 and the second base frame 11 is folded in half, and at the same time, since the first hook 101 and the second hook 111 are close to each other when the first base frame 10 and the second base frame 11 are laid flat, and the first hook 101 and the second hook 111 are separated from each other when the first base frame 10 and the second base frame 11 are arched and folded in half, the first hook 101 and the second hook 111 are prompted to clamp the supporting cross bar 15 when the first base frame 10 and the second base frame 11 are laid flat, and after goods are placed on the first base frame 10 and the second base frame 11, the first hook 101 and the second hook 111 tightly clamp the supporting cross bar 15 under the gravity of the goods to prevent the side bracket 13 from shaking.

[0065] Further, such as Figure 6 As shown, a clamp device 181 is also provided in the middle of the end cross bar 18 located at the top of the two supporting vertical bars 12 connecting the direction wheel 17, and the clamp device 181 is used to limit the vertical rotation of the direction bar assembly 19;

[0066] Furthermore, the clamp device 181 includes: a clamp sleeve 182 and a stopper 183; the clamp sleeve 182 is adapted to the direction rod assembly 19, the clamp sleeve 182 is provided with an opening 184, and the stopper 183 is provided at the opening 184 for closing the opening 184;

[0067] Specifically, in order to facilitate the operation of the direction bar assembly 19 during riding, a clamp device 181 is further provided at the top of the front end cross bar 18. When the direction bar assembly 19 is placed in the clamp device 181, the clamp device 181 can limit the vertical rotation of the direction bar assembly 19, but will not limit the lateral rotation of the direction bar assembly 19, so that the direction control of the direction bar assembly 19 will not be limited, thereby ensuring that the direction bar assembly 19 can be used normally during riding and will not affect the safety of use; wherein the clamp device 181 includes a hoop 182, and the hoop 182 To match the direction rod assembly 19, the hoop 182 is provided with an opening 184, which is convenient for the direction rod assembly 19 to be placed in the hoop 182, and the hoop 182 can fit the direction rod assembly 19. Since the opening 184 is provided, in order to prevent the restriction effect from not being achieved, a limiter 183 is also provided at the opening 184. The limiter 183 is used to block the closed opening 184 so that the direction rod assembly 19 cannot escape from the hoop 182 when entering the hoop 182. In this embodiment, the hoop 182 is preferably made of plastic material, which has good toughness, low cost, and sufficient strength.

[0068] Further, such as Figure 6 As shown, a stabilizing rod 24 is further provided between the top ends of the two supporting vertical rods 12 connected to the fixed wheel 16, one end of the stabilizing rod 24 is rotatably connected to one of the supporting vertical rods 12, and the other end of the stabilizing rod 24 is detachably connected to the other supporting vertical rod 12;

[0069] Specifically, in order to avoid insufficient stability of the top of the trailer when the tail rack 22 is in the open state, a stabilizing bar 24 is further provided between the top ends of the two supporting vertical rods 12 at the rear end. The provision of the stabilizing bar 24 improves the stability of the top of the trailer and prevents the side bracket 13 from being easily bent after the side force is applied. At the same time, in order to avoid affecting the loading of goods due to the provision of the stabilizing bar 24 after the tail rack 22 is opened, one end of the stabilizing bar 24 is rotatably connected to one of the supporting vertical rods 12, and the other end is detachably connected to the other supporting vertical rod 12, preferably by snapping, so that when needed, the stabilizing bar 24 can be lifted to facilitate the placement of large goods and improve the loading capacity of the trailer.

[0070] Further, such as Figure 7 As shown, the end of the stabilizing rod 24 away from the rotational connection with one of the supporting vertical rods 12 is provided with a disassembly limiting sliding piece 241, the disassembly limiting sliding piece 241 is slidably connected with the stabilizing rod 24, and the disassembly limiting sliding piece 241 cooperates with the corresponding supporting vertical rod 12 to limit the disassembly of the stabilizing rod 24;

[0071] Specifically, in order to prevent the stabilizer bar 24 from being disengaged from the corresponding support vertical bar 12 due to bouncing during riding, a disassembly limiting slide 241 is slidably provided on the top surface of one end of the stabilizer bar 24 where the stabilizer bar 24 is engaged with the support vertical bar 12. When the stabilizer bar 24 needs to be fixed, the disassembly limiting slide 241 is slid and inserted into the connecting seat at the top end of the corresponding support vertical bar 12, and cooperates with the connecting seat to limit the lifting of the stabilizer bar 24. At the same time, in order to prevent the self-movement of the disassembly limiting slide 241, a mounting hole 242 is opened in the middle part of the disassembly limiting slide 241, and a spring 243 is provided in the mounting hole 242. A boss 201 is provided at the corresponding position of the stabilizer bar 24, and one end of the spring 243 is abutted against the boss 201. The spring 243 presses the disassembly limiting slide 241 to cooperate with the connecting seat to prevent it from moving on its own.

[0072] Furthermore, the top ends of the two support vertical rods 12 connected to the fixed wheel 16 are rotatably connected to the seat support rods 20 respectively;

[0073] Specifically, the top ends of the two supporting vertical rods 12 at the rear end are respectively rotatably connected with seat struts 20, and the end of the seat strut 20 at the rear end away from the supporting vertical rod 12 is also detachably connected to the top end of the reinforcing vertical rod 14, preferably by snap-on connection, for easy disassembly, and the support member 21 can also be detachably installed between the two seat struts 20 at the rear end according to usage requirements to achieve the function of carrying two people, and even if no people are on board, the front and rear rear seat struts 20 can limit the front and rear, left and right movement of the side bracket 13, thereby improving the stability of the side bracket 13, and then improving the firmness of the trailer to ensure the safety of the people on board.

[0074] It should be noted that the two seat stays 20 at the rear end can also rotate in the horizontal and vertical directions, and have the same function as the two seat stays 20 at the front end, and the two seat stays 20 at the rear end can also be removed from the supporting vertical rod 12.

[0075] Further, such as Figure 5 As shown, the top of the reinforcing vertical rod 14 is also provided with a limiting device 141 for limiting the separation of the seat support rod 20;

[0076] Specifically, since the seat support rod 20 is detachably connected to the top of the reinforcing vertical rod 14, in order to prevent the seat support rod 20 from being disengaged from the reinforcing vertical rod 14 due to jumping or the like, a limiting device 141 is further provided on the connecting seat at the top of the reinforcing vertical rod 14. When the seat support rod 20 is in a state of being engaged with the top of the reinforcing vertical rod 14, the limiting device 141 can limit the disengagement of the seat support rod 20. Specifically, the limiting device 141 includes a rotating handle, which is rotatably connected to the connecting seat. When the seat support rod 20 needs to be placed, the rotating handle can be rotated to a predetermined angle so that it will not affect the placement of the seat support rod 20, and then the seat support rod 20 can be placed between the baffles on both sides. The lateral movement of the seat support rod 20 is limited by the baffle plate. When the seat support rod 20 is clamped with the reinforcing vertical rod 14, the rotary handle can be rotated so that the rotary handle is against the seat support rod 20 to prevent the seat support rod 20 from lifting. At the same time, in order to limit the shaking of the rotary handle, a limiting groove 203 is provided at one end of the seat support rod 20 that is clamped with the reinforcing vertical rod 14. At the same time, the height of the rotary handle is slightly lower than the seat support rod 20. It is made of a tough material so that the rotary handle can be rotated into the limiting groove 203, and the shaking of the rotary handle is limited by the limiting groove 203. Alternatively, a tension spring can be provided at the bottom of the rotary handle. When the rotary handle is rotated to the top of the limiting groove 203, the tension spring pulls the rotary handle downward so that the rotary handle is clamped into the limiting groove 203.

[0077] Further, the direction wheel 17 and / or the fixed wheel 16 are operated under electric control, and the direction rod assembly 19 can control the operation of the direction wheel 17 and / or the fixed wheel 16;

[0078] Specifically, in the present embodiment, the steering wheel 17 and / or the fixed wheel 16 are preferably hub motors; another method is to arrange a mid-mounted motor between the two fixed wheels 16, and the two output ends of the mid-mounted motor are respectively connected to the fixed wheels 16 by transmission, and the fixed wheels 16 are driven to operate by the mid-mounted motor. Under this scheme, a control structure that can control the operation of the hub motor is provided on the steering rod assembly 19, and the functions of the control structure include but are not limited to: acceleration, braking, start / stop, etc., and a power supply and a controller for processing control information are provided on the trailer.

[0079] Further, such as Fig. 9 As shown, one end of the tail frame 22 is rotatably connected to the support vertical rod 12 on one side, and the other end of the tail frame 22 is provided with a rod sleeve 221 adapted to the support vertical rod 12;

[0080] Specifically, in one embodiment of the tail rack 22, one end of the tail rack 22 is rotatably connected to the support vertical rod 12 located on one side, and the tail rack 22 is opened by rotating to one side. By opening the tail rack 22, the trailer has the ability to load large items, and this door opening method can also make the trailer used as a pet house; and a rod sleeve 221 adapted to the support vertical rod 12 is also provided at the other end of the tail rack 22. When the tail rack 22 does not need to be opened, the rod sleeve 221 can be sleeved on the support vertical rod 12 to achieve the closing of the tail rack 22.

[0081] Further, such as Fig.10 As shown, the bottom side of the tail frame 22 is rotatably connected to the end cross bar 18, and rod sleeves 221 adapted to the support vertical rods 12 are respectively provided at both ends of the tail frame 22, and the two support vertical rods 12 connected to the fixed wheel 16 are respectively connected to connecting members 222, and the ends of the connecting members 222 away from the support vertical rods 12 are connected to the ends of the tail frame 22;

[0082] Specifically, in another implementation scheme of the tail rack 22, the bottom side of the tail rack 22 is rotatably connected to the end cross bar 18 at the bottom, and connecting pieces 222 are respectively connected to the two ends of the tail rack 22, and the other end of the connecting piece 222 is connected to the supporting vertical rod 12. The tail rack 22 is pulled by the connecting piece 222 and placed flat on the rear end of the supporting vertical rod 12, so that the trailer has the ability to load large cargo and can also increase the loading capacity of the trailer. Rod sleeves 221 adapted to the supporting vertical rod 12 are also respectively provided at both ends of the tail rack 22. When the tail rack 22 does not need to be opened, the rod sleeve 221 is sleeved on the supporting vertical rod 12 to achieve the closing of the tail rack 22.

[0083] Further, the side bracket 13 includes: a first support rod 131, a second support rod 132, a third support rod 133, and a fourth support rod 134; the middle part of the first support rod 131 is rotatably connected to the middle part of the second support rod 132, the middle part of the third support rod 133 is rotatably connected to the middle part of the fourth support rod 134, one end of the first support rod 131 and the second support rod 132 is rotatably connected to the corresponding support vertical rod 12, and the other end is rotatably connected to the corresponding reinforcement vertical rod 14, one end of the third support rod 133 and the fourth support rod 134 is rotatably connected to the corresponding support vertical rod 12, and the other end is rotatably connected to the corresponding reinforcement vertical rod 14, and each of the support vertical rods 12 can be telescopically arranged;

[0084] Specifically, in one embodiment of the side bracket 13, each side bracket 13 includes: a first support rod 131, a second support rod 132, a third support rod 133, and a fourth support rod 134; wherein the first support rod 131 and the second support rod 132 are cross-arranged and rotatable at the intersection, the third support rod 133 and the fourth support rod 134 are cross-arranged and rotatable at the intersection, the first support rod 131 and the second support rod 132 are located at the front side of the reinforcing vertical rod 14, the third support rod 133 and the fourth support rod 134 are located at the rear side of the reinforcing vertical rod 14, one end of the first support rod 131 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the top end of the reinforcing vertical rod 14, one end of the second support rod 132 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the bottom end of the reinforcing vertical rod 14, the other end of the first support rod 131 is rotatably connected to the connecting seat at the bottom end of the front support vertical rod 12, and the other end of the second support rod 132 is rotatably connected to the connecting seat at the top end of the front support vertical rod 12;

[0085] One end of the third support rod 133 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the bottom end of the reinforcing vertical rod 14, one end of the fourth support rod 134 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the top end of the reinforcing vertical rod 14, the other end of the third support rod 133 is rotatably connected to the connecting seat at the top end of the supporting vertical rod 12 at the rear end, and the other end of the fourth support rod 134 is rotatably connected to the connecting seat at the bottom end of the supporting vertical rod 12 at the rear end; and under this scheme, the supporting vertical rods 12 are all telescopically arranged so that the first support rod 131 and the second support rod 132, the third support rod 133 and the fourth support rod 134 can rotate relative to each other at the intersection.

[0086] Further, such as Figure 4 As shown, the side bracket 13 includes: a first support rod 131, a second support rod 132, a third support rod 133, a fourth support rod 134, and a transfer rod 135; the first support rod 131 and the second support rod 132 are cross-arranged and can rotate at the intersection, the third support rod 133 and the fourth support rod 134 are cross-arranged and can rotate at the intersection, one end of the first support rod 131 is rotatably connected to the bottom end of the support vertical rod 12 connected to the direction wheel 17, one end of the second support rod 132 is rotatably connected to the transfer rod 135, and the other end of the transfer rod 135 is connected to the support vertical rod 12 connected to the direction wheel 17 2, the other ends of the first support rod 131 and the second support rod 132 are respectively rotatably connected to the corresponding reinforcing vertical rod 14, one end of the third support rod 133 and the fourth support rod 134 are rotatably connected to the corresponding reinforcing vertical rod 14, the other end of the third support rod 133 is connected to a transfer rod 135, one end of the transfer rod 135 away from the third support rod 133 is rotatably connected to the top of the supporting vertical rod 12 connected to the fixing wheel 16, and one end of the fourth support rod 134 away from the reinforcing vertical rod 14 is rotatably connected to the bottom end of the supporting vertical rod 12 connected to the fixing wheel 16;

[0087] Specifically, in another embodiment of the side bracket 13, each side bracket 13 includes: a first brace 131, a second brace 132, a third brace 133, a fourth brace 134, and a transfer rod 135; the first brace 131 and the second brace 132 are cross-arranged and can rotate at the intersection, the third brace 133 and the fourth brace 134 are cross-arranged and can rotate at the intersection, the first brace 131 and the second brace 132 are located at the front side of the reinforcing vertical rod 14, and the third brace 133 and the fourth brace 134 are located at the rear side of the reinforcing vertical rod 14;

[0088] One end of the first support rod 131 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connection seat at the top of the reinforcing vertical rod 14, and the other end is rotatably connected to the connection seat at the bottom of the front support vertical rod 12; one end of the second support rod 132 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connection seat at the bottom of the reinforcing vertical rod 14, and the other end of the second support rod 132 is rotatably connected to the transfer rod 135, and the end of the transfer rod 135 away from the second support rod 132 is rotatably connected to the connection seat at the top of the front support vertical rod 12;

[0089] One end of the third support rod 133 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the bottom end of the reinforcing vertical rod 14, and the other end is rotatably connected to the transfer rod 135. One end of the transfer rod 135 away from the third support rod 133 is rotatably connected to the connecting seat at the top end of the rear support vertical rod 12. One end of the fourth support rod 134 adjacent to the reinforcing vertical rod 14 is rotatably connected to the connecting seat at the top end of the reinforcing vertical rod 14, and the other end is rotatably connected to the connecting seat at the bottom end of the rear support vertical rod 12. When the first support rod 131 and the second support rod 132 rotate relative to each other, the first support rod 131 drives the reinforcing vertical rod 14 to rise, and the second support rod 132 pushes up the transfer rod 135, so that it changes from a flat state to an upright state, so as to replace the support vertical rod 12 being set to a telescopic mode, and the rotation of the first support rod 131 and the second support rod 132 can also be realized, thereby realizing the folding of the trailer, and the third support rod 133 and the fourth support rod 134 are also the same.

[0090] The connection between the transfer rod 135 and the connection seat is limited rotation, that is, after the transfer rod 135 rotates to a predetermined angle, it will be limited by the connection seat and cannot continue to rotate, thereby avoiding affecting the stability of the side bracket 13;

[0091] In this solution, the arrangement of the seat support rod 20 can also prevent the transfer rod 135 from arching due to jumping and other reasons during use, thereby stabilizing the side bracket 13.

[0092] Further, such as Figure 4 As shown, the position of the seat support rod 20 corresponding to the transfer rod 135 is also provided with a clamping sleeve 202 adapted to the transfer rod 135;

[0093] Specifically, in the second scheme of the side bracket 13, a sleeve 202 adapted to the transfer rod 135 is further provided on the lower side of the seat strut 20 at a position corresponding to the transfer rod 135. When the seat strut 20 is placed flat on the top of the side bracket 13, the sleeve 202 semi-encloses the outer side of the transfer rod 135. In this way, the side bracket 13 is restricted from shaking and bending after being subjected to lateral force. At the same time, the transfer rod 135 is pressed down by the seat strut 20 to prevent the transfer rod 135 from arching during use.

[0094] In summary, the present application provides a reinforcing vertical bar in the middle part of the side bracket, and improves the lateral force bearing capacity of the side bracket by supporting the cross bar, and at the same time provides a seat support rod above the side bracket to further improve the stability of the side bracket and ensure the stability of the trailer. The passenger-carrying function of the trailer is realized through the setting of the support parts. The trailer has strong stability, high passenger safety factor and large load capacity, thereby meeting different usage requirements.

[0095] 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 foldable passenger trailer, characterized in that: include: A first base frame and a second base frame, wherein one end of the first base frame and the second base frame are rotatably connected; The first base frame and the second base frame are connected to support vertical rods on both sides of the ends away from each other, and a side bracket is rotatably connected between the two support vertical rods on the same side. A reinforcing vertical rod is provided in the middle of each side bracket, and the front and rear ends of the side bracket can be moved and retracted toward the position of the reinforcing vertical rod; The bottom ends of the two support vertical rods at one end are fixedly connected with fixed wheels, and the bottom ends of the two support vertical rods at the other end are rotatably connected with direction wheels; End cross bars are respectively connected between the top and bottom ends of the two support vertical bars connected to the direction wheels and the bottom ends of the two support vertical bars connected to the fixed wheels; The end cross bar located at the bottom ends of the two supporting vertical bars connected to the direction wheel is also movably connected to a direction bar assembly, and the direction bar assembly can rotate vertically and horizontally relative to the connected end cross bar, and the bottom end of the direction bar assembly is connected to the direction wheel, and the direction bar assembly controls the rotation of the direction wheel; The top ends of the two support vertical rods connected to the direction wheels are rotatably connected to seat support rods respectively, one end of each seat support rod away from the rotatably connected support vertical rod is connected to the top of the corresponding reinforcement vertical rod, and a support member is detachably connected between the two seat support rods; A limiting device for limiting the separation of the seat support rod is also provided on the top of the reinforcing vertical rod.

2. The foldable passenger trailer according to claim 1, characterized in that: The bottom ends of the two supporting vertical rods connected to the direction wheels are also rotatably connected to pedals respectively.

3. The foldable passenger trailer according to claim 1, characterized in that: A supporting cross bar is fixedly connected between the bottom ends of the two reinforcing vertical bars.

4. The foldable passenger trailer according to claim 3, characterized in that: First hooks are respectively provided on both sides of one end where the first base frame is connected to the second base frame, and second hooks are respectively provided on both sides of one end where the second base frame is connected to the first base frame, and the first hooks cooperate with the second hooks to clamp the supporting cross bar.

5. The foldable passenger trailer according to claim 1, characterized in that: A clamp device is also provided at the middle part of the end cross bar located at the top ends of the two supporting vertical bars connecting the direction wheels, and the clamp device is used to limit the vertical rotation of the direction bar assembly.

6. The foldable passenger trailer according to claim 5, characterized in that: The clamp device comprises: a clamp sleeve and a limiting member; the clamp sleeve is adapted to the direction rod assembly, the clamp sleeve is provided with an opening, and the limiting member is arranged at the opening for closing the opening.

7. The foldable passenger trailer according to claim 1, characterized in that: A stabilizing rod is also provided between the top ends of the two supporting vertical rods connected to the fixed wheel, one end of the stabilizing rod is rotatably connected to one of the supporting vertical rods, and the other end of the stabilizing rod is detachably connected to the other supporting vertical rod.

8. The foldable passenger trailer according to claim 7, characterized in that: The end of the stabilizing rod away from the rotational connection with one of the supporting vertical rods is provided with a disassembly limiting slide, the disassembly limiting slide is slidably connected to the stabilizing rod, and the disassembly limiting slide cooperates with the corresponding supporting vertical rod to limit the disassembly of the stabilizing rod.

9. The foldable passenger trailer according to claim 1, characterized in that: The top ends of the two support vertical rods connected to the fixed wheel are respectively rotatably connected to the seat support rods.

10. The foldable passenger trailer according to claim 1, characterized in that: The side bracket includes: a first strut, a second strut, a third strut, and a fourth strut; the middle part of the first strut is rotatably connected to the middle part of the second strut, the middle part of the third strut is rotatably connected to the middle part of the fourth strut, one end of the first strut and the second strut is rotatably connected to the corresponding supporting vertical rod, and the other end is rotatably connected to the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut is rotatably connected to the corresponding supporting vertical rod, and the other end is rotatably connected to the corresponding reinforcing vertical rod, and each of the supporting vertical rods can be telescopically arranged.

11. The foldable passenger trailer according to claim 1, characterized in that: The side stand includes: A first support rod, a second support rod, a third support rod, a fourth support rod, and a transfer rod; The first strut and the second strut are cross-arranged and can rotate at the intersection, the third strut and the fourth strut are cross-arranged and can rotate at the intersection, one end of the first strut is rotatably connected to the bottom end of the support vertical rod connected to the direction wheel, one end of the second strut is rotatably connected to the transfer rod, and the other end of the transfer rod is rotatably connected to the top end of the support vertical rod connected to the direction wheel, the other ends of the first strut and the second strut are respectively rotatably connected to the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut are rotatably connected to the corresponding reinforcing vertical rod, the other end of the third strut is connected to the transfer rod, one end of the transfer rod away from the third strut is rotatably connected to the top of the support vertical rod connected to the fixed wheel, and one end of the fourth strut away from the reinforcing vertical rod is rotatably connected to the bottom end of the support vertical rod connected to the fixed wheel.

12. The foldable passenger trailer according to claim 1, characterized in that: The steering wheel and / or the fixed wheel are operated under electric control, and the steering lever assembly can control the operation of the steering wheel and / or the fixed wheel.

13. The foldable passenger trailer according to claim 1, characterized in that: A rotatable tail frame is also provided between the two supporting vertical rods connected with the fixed wheels.

14. The foldable passenger trailer according to claim 13, characterized in that: One end of the tail frame is rotatably connected to a supporting vertical rod on one side, and the other end of the tail frame is provided with a rod sleeve adapted to the supporting vertical rod.

15. The foldable passenger trailer according to claim 13, characterized in that: The bottom side of the tail frame is rotatably connected to the end cross bar, and rod sleeves adapted to the support vertical rods are respectively provided at both ends of the tail frame. The two support vertical rods connected to the fixed wheel are respectively connected to connecting pieces, and one end of the connecting piece away from the support vertical rod is connected to the end of the tail frame.

16. The foldable passenger trailer according to claim 11, characterized in that: A clamping sleeve adapted to the transfer rod is also provided at a position corresponding to the transfer rod of the seat support rod, and the seat support rod presses the transfer rod through the clamping sleeve.

17. The foldable passenger trailer according to claim 1, 10 or 11, characterized in that: The reinforcing vertical rod can be telescopically arranged.

Images