Foldable man-carrying trailer

Abstract

A foldable man-carrying trailer, relating to the technical field of electric trailers. The foldable man-carrying trailer comprises a first base frame (10) and a second base frame (11); one end of the first base frame (10) is rotatably connected to one end of the second base frame (11); two sides of the ends where the first base frame (10) is away from the second base frame (11) are respectively connected to support vertical rods (12); two support vertical rods (12) on the same side are rotatably connected to a side support (13); a reinforcing vertical rod (14) is arranged in the middle of each side support (13); the front and rear ends of the side support (13) can move and fold towards the position where the reinforcing vertical rod (14) is located; fixed wheels (16) are fixedly connected to the bottom ends of the two support vertical rods (12) at one end, and directional wheels (17) are rotatably connected to the bottom ends of the two support vertical rods (12) at the other end; end transverse rods (18) are respectively connected at the top ends and the bottom ends of the two support vertical rods (12) connected to the directional wheels (17), and an end transverse rod (18) is connected between the bottom ends of the two support vertical rods (12) connected to the fixed wheels (16); the end transverse rod (18) located at the bottom ends of the two support vertical rods (12) connected to the directional wheels (17) is also movably connected to a directional rod assembly (19); the directional rod assembly (19) can vertically and transversely rotate relative to the end transverse rod (18) connected to the directional rod assembly (19); the bottom end of the directional rod assembly (19) is connected to the directional wheels (17); the directional rod assembly (19) controls the directional wheels (17) to rotate; the top ends of the two support vertical rods (12) connected to the directional wheels (17) are respectively rotatably connected to seat support rods (20); the end of each seat support rod (20) away from the position where the seat support rod (20) is rotatably connected to the corresponding support vertical rod (12) is connected to the top of the corresponding reinforcing vertical rod (14); a support member (21) is detachably connected between the two seat support rods (20); and the tops of the reinforcing vertical rods (14) are provided with limiting devices (141) for limiting the separation of the seat support rods (20). The trailer has a man-carrying function and strong stability.

Description

A foldable type manned trailer TECHNICAL FIELD

[0001] The present application relates to the technical field of electric trailers, in particular to a foldable type manned trailer. BACKGROUND

[0002] The camping car is a foldable and towable carrier, which is widely used in outdoor activities or short-distance transportation because of its simple use, carrying capacity, convenient storage, time and labor saving.

[0003] The existing camping car can be divided into two types according to the folding method. One is the foldable type, that is, the frame is folded from the front and rear ends to the middle, and the bottom of the frame is folded from the middle. The other is the gathering type, that is, the frame is gathered from the front, rear, left and right four directions to the middle, and the bottom of the frame is arched. The characteristic of the gathering type is that the space occupied after folding is small, but the structure is relatively complex and the cost is relatively high. The foldable type does not need to consider the gathering of the left and right two directions, so the structure is relatively simple and the cost is low. The existing camping car is upgraded from the traditional manual camping car to the electric camping car to improve the convenience of use. The camping car can greatly save the user's physical strength when in use through the driving of electricity. However, such camping car does not have the function of carrying people. If people are forced to use the carrying space of the camping car, it will be difficult to control the direction and safety accidents will easily occur. Moreover, the stability of such car body is low.

[0004] Therefore, it is urgent to design a foldable type manned trailer to overcome one or more of the above deficiencies of the prior art. SUMMARY

[0005] The technical scheme adopted by the present application to solve the above technical problems is to provide a foldable type manned trailer, characterized in that it comprises: a first chassis and a second chassis, one end of the first chassis and the second chassis is rotatably connected;

[0006] The other end of the first chassis and the second chassis is rotatably connected with a support vertical rod on both sides, and a side support is rotatably connected between the two support vertical rods on the same side. The middle part of each side support is provided with a reinforcing vertical rod, and the front and rear ends of the side support can move to the position of the reinforcing vertical rod and be folded.

[0007] The bottom end of the two support vertical rods at one end is fixedly connected with a fixed wheel, and the bottom end of the two support vertical rods at the other end is rotatably connected with a direction wheel.

[0008] The top end and the bottom end of the two support vertical rods connected with the direction wheel and the bottom end of the two support vertical rods connected with the fixed wheel are connected with an end cross bar.

[0009] The end crossbar at the bottom end of the two support vertical poles connected with the direction wheel is further movably connected with a direction rod assembly, the direction rod assembly can rotate vertically and horizontally relative to the connected end crossbar, the bottom end of the direction rod assembly is connected with the direction wheel, and the direction rod assembly controls the rotation of the direction wheel;

[0010] The top end of the two support vertical poles connected with the direction wheel is movably connected with a seat support rod, one end of each seat support rod away from the rotationally connected support vertical pole is connected with the top of the corresponding reinforcing vertical pole, and the two seat support rods are further detachably connected with a support member;

[0011] The top of the reinforcing vertical pole is further provided with a limiting device for limiting the disengagement of the seat support rod.

[0012] In a preferred embodiment, the bottom end of the two support vertical poles connected with the direction wheel is further movably connected with a foot pedal.

[0013] In a preferred embodiment, the two sides of one end of the first chassis connected with the second chassis are respectively provided with first hook portions, the two sides of one end of the second chassis connected with the first chassis are respectively provided with second hook portions, and the first hook portions and the second hook portions are matched to clamp the support crossbar.

[0014] In a preferred embodiment, the middle part of the end crossbar at the top end of the two support vertical poles connected with the direction wheel is further provided with a clamp device, and the clamp device is used to limit the vertical rotation of the direction rod assembly.

[0015] In a preferred embodiment, the clamp device comprises a clamp sleeve and a limiting member, the clamp sleeve is matched with the direction rod assembly, the clamp sleeve is provided with an opening, and the limiting member is arranged at the opening and used to close the opening.

[0016] In a preferred embodiment, the top end of the two support vertical poles connected with the fixed wheel is further provided with a stabilizing rod, one end of the stabilizing rod is movably connected with one of the support vertical poles, and the other end of the stabilizing rod is detachably connected with the other support vertical pole.

[0017] In a preferred embodiment, the end of the stabilizing rod away from the rotationally connected one of the support vertical poles is provided with a limiting and detaching sliding member, the limiting and detaching sliding member is movably connected with the stabilizing rod, and the limiting and detaching sliding member is matched with the corresponding support vertical pole to limit the disassembly of the stabilizing rod.

[0018] In a preferred embodiment, the top end of the two support vertical poles connected with the fixed wheel is movably connected with the seat support rod.

[0019] In a preferred embodiment, the side support frame comprises: a first strut, a second strut, a third strut, a fourth strut; the middle part of the first strut and the middle part of the second strut are rotationally connected, the middle part of the third strut and the middle part of the fourth strut are rotationally connected, one end of the first strut and the second strut is rotationally connected with the corresponding support vertical rod, the other end is rotationally connected with the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut is rotationally connected with the corresponding support vertical rod, the other end is rotationally connected with the corresponding reinforcing vertical rod, and each support vertical rod is telescopic.

[0020] In a preferred embodiment, the side support frame comprises: a first strut, a second strut, a third strut, a fourth strut, an adapter rod; the first strut and the second strut are cross arranged and can rotate at the cross, the third strut and the fourth strut are cross arranged and can rotate at the cross, one end of the first strut is rotationally connected with the bottom end of the support vertical rod connected with the direction wheel, one end of the second strut is rotationally connected with the adapter rod, the other end of the adapter rod is rotationally connected with the top end of the support vertical rod connected with the direction wheel, the other end of the first strut and the second strut is respectively rotationally connected with the corresponding reinforcing vertical rod, one end of the third strut and the fourth strut is rotationally connected with the corresponding reinforcing vertical rod, the other end of the third strut is connected with an adapter rod, one end of the adapter rod away from the third strut is rotationally connected with the top of the support vertical rod connected with the fixed wheel, one end of the fourth strut away from the reinforcing vertical rod is rotationally connected with the bottom of the support vertical rod connected with the fixed wheel.

[0021] In a preferred embodiment, the direction wheel and / or the fixed wheel is controlled to operate by power, and the direction rod 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 arranged between the two support vertical rods connected with the fixed wheel.

[0023] In a preferred embodiment, one end of the tail frame is rotationally connected with the support vertical rod of one side, and the other end of the tail frame is provided with a rod sleeve matched with the support vertical rod.

[0024] In a preferred embodiment, the bottom side of the tail frame is rotationally connected with the end cross rod, both ends of the tail frame are respectively provided with a rod sleeve matched with the support vertical rod, and the two support vertical rods connected with the fixed wheel are respectively connected with a connecting piece, one end of the connecting piece away from the support vertical rod is connected with the end of the tail frame.

[0025] In a preferred embodiment, the corresponding position of the seat support rod and the adapter rod is further provided with a clamping sleeve matched with the adapter rod, and the seat support rod presses the adapter rod through the clamping sleeve.

[0026] In a preferred embodiment, the reinforcing vertical rods are arranged in a telescopic manner.

[0027] In a preferred embodiment, a support cross rod is fixedly connected between the bottom ends of the two reinforcing vertical rods.

[0028] The present application has the advantages that: the reinforcing vertical rods are arranged in the middle of the side support, the lateral stress capacity of the side support is improved through the support cross rod, the seat support rod is arranged above the side support to further improve the stability of the side support, the stability of the trailer is ensured, the load-carrying function of the trailer is realized through the arrangement of the support, the trailer has high stability, high safety factor for carrying people, and large load capacity, thereby meeting different use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a structural schematic diagram of the present application;

[0030] Fig. 2 is a structural schematic diagram of the first and second bottom frames of the present application;

[0031] Fig. 3 is an enlarged view of A in Fig. 2;

[0032] Fig. 4 is a structural schematic diagram of the side support of the present application;

[0033] Fig. 5 is an enlarged view of B in Fig. 4;

[0034] Fig. 6 is a structural schematic diagram of the end cross rod of the present application;

[0035] Fig. 7 is an enlarged view of C in Fig. 6;

[0036] Fig. 8 is a structural schematic diagram of the direction rod assembly of the present application;

[0037] Fig. 9 is an open state diagram of the first scheme of the tail frame of the present application;

[0038] Fig. 10 is an open state diagram of the second scheme of the tail frame of the present application;

[0039] Fig. 11 is a towing state diagram of the present application;

[0040] Fig. 12 is a folding state diagram of the present application.

[0041] In the drawings:

[0042] 10, first chassis; 101, first hook part; 11, second chassis; 111, second hook part; 12, support vertical pole; 13, side support; 131, first support pole; 132, second support pole; 133, third support pole; 134, fourth support pole; 135, adapter pole; 14, reinforcing vertical pole; 141, limiting device; 15, support horizontal pole; 16, fixed wheel; 17, direction wheel; 18, end horizontal pole; 181, clamp device; 182, clamp sleeve; 183, limiting piece; 184, opening; 19, direction pole assembly; 191, direction swing arm; 192, control direction pole; 20, seat support pole; 201, convex column; 202, clamp sleeve; 203, limiting groove; 21, support piece; 22, tail frame; 221, pole sleeve; 222, connecting piece; 23, foot pedal; 24, stabilizing pole; 241, disassembly limiting sliding piece; 242, mounting hole; 243, spring. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0044] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, or can be indirect communication through intermediate medium. Among them, "fixing" means connecting with each other and the relative positional relationship after connection does not change. The orientation language mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., is only the direction of reference to the drawings, therefore, the orientation language used is to better and more clearly illustrate and understand the embodiments of the present application, and is not indicative or implied that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0045] In the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0046] In the embodiments of the present application, "and / or" is only used to describe the relationship of the associated objects, and means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0047] Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment, although it can. The terms "including," "comprising," "having" and variations thereof are meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Therefore, the application should not be limited by any of the above disclosed specific embodiments.

[0048] As shown in FIGS. 1-8, the present application provides a folding type personnel trailer, characterized in that it comprises a first chassis 10 and a second chassis 11, one end of the first chassis 10 and the second chassis 11 being rotatably connected;

[0049] The first chassis 10 and the second chassis 11 are respectively connected with support vertical rods 12 on both sides of the end away from each other, and a side support 13 is rotatably connected between two support vertical rods 12 on the same side. A reinforcing vertical rod 14 is arranged in the middle of each side support 13, and the reinforcing vertical rod 14 is arranged in an extendable manner. The front and rear ends of the side support 13 can move to the position of the reinforcing vertical rod 14 and be folded;

[0050] The bottom ends of two reinforcing vertical rods 14 are fixedly connected with a support cross rod 15;

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

[0052] The top and bottom ends of two support vertical rods 12 connected with the direction wheel 17 and the bottom ends of two support vertical rods 12 connected with the fixed wheel 16 are respectively connected with end cross rods 18;

[0053] The end cross bar 18 at the bottom end of the two support vertical rods 12 connecting the direction wheels 17 is also movably connected with a direction rod assembly 19, which can rotate vertically and horizontally relative to the connected end cross bar 18, the bottom end of the direction rod assembly 19 is connected with the direction wheel 17, and the direction rod assembly 19 controls the rotation of the direction wheel 17;

[0054] The top end of the two support vertical rods 12 connecting the direction wheels 17 is rotatably connected with a seat support rod 20, one end of each seat support rod 20 away from the rotatable connection with the support vertical rod 12 is connected with the top of the corresponding reinforcing vertical rod 14, and the two seat support rods 20 are also detachably connected with a support 21;

[0055] The two support vertical rods 12 connected with the fixed wheels 16 are also provided with a rotatable tail frame 22;

[0056] Specifically, one end of the first bottom frame 10 and one end of the second bottom frame 11 are rotatably connected, the first bottom frame 10 and the second bottom frame 11 can be folded towards each other, the two sides of the ends of the first bottom frame 10 and the second bottom frame 11 away from each other are respectively connected with a support vertical rod 12, the top end and the bottom end of each support vertical rod 12 are fixedly connected with a connecting seat, and the two support vertical rods 12 on the same side are rotatably connected with a side frame 13 through the connecting seats, the front end and the rear end of the side frame 13 can be moved towards the middle to be folded, and the middle part of the side frame 13 is also provided with a reinforcing vertical rod 14, the reinforcing vertical rod 14 has an inner rod and an outer rod, the inner rod can be telescoped in the outer rod, the top end of the inner rod and the bottom end of the outer rod are connected with connecting seats, when the front end and the rear end of the side frame 13 are moved towards the middle to be folded, the inner rod of the reinforcing vertical rod 14 will be extended, and vice versa; the connecting seats between the bottom ends of the two reinforcing vertical rods 14 are also fixedly connected with a support cross bar 15, when the first bottom frame 10 and the second bottom frame 11 are flat, the support cross bar 15 limits the first bottom frame 10 and the second bottom frame 11 from continuing to rotate downward, so that they are kept in a flat state, and through the arrangement of the support cross bar 15 and the reinforcing vertical rod 14, the side of the side frame 13 will not be bent by external force, thereby improving the stability and firmness of the side frame 13.

[0057] In order to control the walking direction of the trailer, the connecting seat at the bottom end of the two supporting vertical poles 12 is rotatably connected with a direction wheel 17, the direction of which can be adjusted by rotating, the connecting seat at the bottom end of the two supporting vertical poles 12 at the other end is fixedly connected with a fixed wheel 16, the direction of which is fixed. In order to facilitate subsequent description, the end where the direction 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, end cross bars 18 are fixedly connected between the top end and the bottom end of the two supporting vertical poles 12 at the front end, and end cross bars 18 are also fixedly connected between the bottom ends of the two supporting vertical poles 12 at the rear end. The end cross bars 18 can also be replaced with X-shaped supports, which can also achieve the effect of stability.

[0058] A direction rod assembly 19 is also provided at the end connected with the direction wheel 17, the bottom of the direction rod assembly 19 is movably connected with the end cross bar 18 at the bottom end, and the direction rod assembly 19 can rotate in the horizontal direction and the vertical direction relative to the end cross bar 18 connected thereto. The vertical rotation is for facilitating towing. The bottom end of the direction rod assembly 19 is fixedly connected with a direction swing arm 191, one end of the direction swing arm 191 away from the direction rod is rotatably connected with a control direction rod 192, and the two ends of the control direction rod 192 are respectively connected with the corresponding direction wheel 17. When the direction rod assembly 19 rotates in the horizontal direction, the control direction rod 192 moves left and right, thereby driving the direction wheel 17 to rotate, and the direction of the trailer is controlled. The rotation axis of the direction wheel 17 and the rotation axis of the direction rod assembly 19 are located on the same straight line. In order to improve the practicability of the trailer, a tail frame 22 is also rotatably provided between the two supporting vertical poles 12 at the rear end. The tail frame 22 realizes the rear opening door of the trailer by rotating, so as to meet the use demand when needed, and the stability of the top end of the trailer can also be improved by the tail frame 22 when not needed.

[0059] In order to realize the function of carrying people, the top end of the two support vertical rods 12 at the front end is respectively rotationally connected with a seat support rod 20, and the rotation mode of the seat support rod 20 has two modes, one is horizontal rotation, and the other is vertical rotation, the horizontal rotation is to avoid the folding of the trailer as a whole, and the vertical rotation is to facilitate the use of the seat support rod 20 according to the requirement; the other end of the seat support rod 20 is detachably connected with the top end of the corresponding side of the reinforcing vertical rod 14, when needed, the seat support rod 20 can be placed between the support vertical rod 12 and the reinforcing vertical rod 14, and the support piece 21 can be detachably connected between the two seat support rods 20, at this time, the user can sit on the support piece 21, and the orientation of the direction wheel 17 is controlled through the direction rod assembly 19, so as to realize the function of carrying people; when not needed, the support piece 21 can be removed, and then the connection between the seat support rod 20 and the reinforcing vertical rod 14 is released, and then the seat support rod 20 is horizontally rotated to be hung outside the trailer, so that the folding of the trailer can be avoided; when the loaded goods are more, only the support piece 21 can be removed, and the seat support rod 20 is used to improve the stability and firmness of the side support 13; wherein 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 the connection seat of the seat support rod 20 with the support vertical rod 12 adopts a screw rod to be fixed, so that the seat support rod 20 can be horizontally rotated, and the seat support rod 20 can also 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 prior art, and therefore will not be described here.

[0061] Further, the bottom end of the two support vertical rods 12 connected with the direction wheel 17 is also respectively rotationally connected with a foot pedal 23;

[0062] Specifically, in order to further improve the riding experience, as shown in FIG. 1, the bottom end of the two support vertical rods 12 at the front end is also respectively rotationally connected with a foot pedal 23, the foot pedal 23 can be rotated within a predetermined angle, when needed, the foot pedal 23 can be placed flat, at this time, when the user sits on the support piece 21, the foot can be stepped on the foot pedal 23, and when not needed, the foot pedal 23 can be directly erected to avoid occupying space.

[0063] Further, as shown in FIG. 3, the two sides of one end of the first chassis 10 connected with the second chassis 11 are respectively provided with first hook parts 101, the two sides of one end of the second chassis 11 connected with the first chassis 10 are respectively provided with second hook parts 111, and the first hook parts 101 and the second hook parts 111 cooperate to clamp the support horizontal rod 15;

[0064] Specifically, to further improve the stability of the side bracket 13 and avoid the side bracket 13 from shaking on the left and right sides during use, the side wall of the first base frame 10 abuts against the side wall of the connecting seat at the bottom end of the reinforcing vertical rod 14, so as to limit the shaking and bending of the two side brackets 13 in opposite directions through the first base frame 10; meanwhile, a first hook portion 101 is integrally arranged on both sides of the end where the first base frame 10 and the second base frame 11 are connected, a second hook portion 111 is integrally arranged on both sides of the end where the second base frame 11 and the first base frame 10 are connected, the first hook portion 101 and the second hook portion 111 are arranged in a staggered manner to avoid affecting the folding of the first base frame 10 and the second base frame 11, and since the first hook portion 101 and the second hook portion 111 are close to each other when the first base frame 10 and the second base frame 11 are flat and are separated from each other when the first base frame 10 and the second base frame 11 are folded, the first hook portion 101 and the second hook portion 111 can clamp the support cross rod 15 when the first base frame 10 and the second base frame 11 are flat, and after goods are placed on the first base frame 10 and the second base frame 11, the first hook portion 101 and the second hook portion 111 tightly clamp the support cross rod 15 under the gravity of the goods, so as to avoid the shaking of the side bracket 13.

[0065] Further, as shown in FIG. 6, the middle part of the end cross rod 18 at the top end of the two support vertical rods 12 connected with the direction wheel 17 is further provided with a clamp device 181, and the clamp device 181 is used to limit the vertical rotation of the direction rod assembly 19.

[0066] Further, the clamp device 181 comprises a clamp sleeve 182 and a limiting piece 183, the clamp sleeve 182 is matched with the direction rod assembly 19, the clamp sleeve 182 is provided with an opening 184, and the limiting piece 183 is arranged at the opening 184 and used to close the opening 184.

[0067] Specifically, in order to facilitate the operation of the handlebar assembly 19 during riding, the end crossbar 18 at the top of the front end is further provided with a clamp device 181, when the handlebar assembly 19 is placed in the clamp device 181, the handlebar assembly 19 can be limited in the vertical rotation by the clamp device 181, but the horizontal rotation of the handlebar assembly 19 will not be limited, so the steering of the handlebar assembly 19 will not be limited, thereby ensuring that the handlebar assembly 19 can be normally used during riding, and the use safety will not be affected; wherein the clamp device 181 comprises a clamp sleeve 182, the clamp sleeve 182 is matched with the handlebar assembly 19, the clamp sleeve 182 is provided with an opening 184, so as to facilitate the handlebar assembly 19 to be placed in the clamp sleeve 182, and the clamp sleeve 182 can be attached to the handlebar assembly 19, since the opening 184 is provided, in order to prevent the limitation effect from being unable to be achieved, a limiting piece 183 is further arranged at the opening 184, the limiting piece 183 is used to block the opening 184, so that when the handlebar assembly 19 enters the clamp sleeve 182, the handlebar assembly 19 cannot be separated from the clamp sleeve 182; in the embodiment, the clamp sleeve 182 is preferably made of plastic material, which has good toughness, low cost and sufficient strength.

[0068] Further, as shown in FIG. 6, a stabilizing rod 24 is further arranged between the top ends of the two support vertical rods 12 connected with the fixed wheel 16, one end of the stabilizing rod 24 is rotatably connected with one of the support vertical rods 12, and the other end of the stabilizing rod 24 is detachably connected with the other support vertical rod 12.

[0069] Specifically, in order to avoid that the top stability of the trailer is insufficient when the tail frame 22 is in the open state, the stabilizing rod 24 is further arranged between the top ends of the two support vertical rods 12 at the rear end, by arranging the stabilizing rod 24, the top stability of the trailer is improved, and the side bracket 13 is prevented from being easily bent after being subjected to the side force; at the same time, in order to avoid that the loading of goods is affected due to the arrangement of the stabilizing rod 24 after the tail frame 22 is opened, one end of the stabilizing rod 24 is rotatably connected with one of the support vertical rods 12, and the other end of the stabilizing rod 24 is detachably connected with the other support vertical rod 12, preferably by clamping, so that when needed, the stabilizing rod 24 can be lifted to facilitate the placement of large goods, and the loading capacity of the trailer is improved.

[0070] Further, as shown in FIG. 7, the stabilizing rod 24 is provided with a disassembly limiting piece 241 away from the end rotatably connected with one of the support vertical rods 12, the disassembly limiting piece 241 is slidably connected with the stabilizing rod 24, and the disassembly limiting piece 241 cooperates with the corresponding support vertical rod 12 to limit the disassembly of the stabilizing rod 24.

[0071] Specifically, to avoid disengaging the stabilizing rod 24 from the corresponding support vertical rod 12 due to jumping during riding, a dismounting slide 241 is arranged on the top surface of the end of the stabilizing rod 24 which is connected with the support vertical rod 12, and when it is necessary to fix the stabilizing rod 24, the dismounting slide 241 is slid to be inserted into the connecting seat at the top end of the corresponding support vertical rod 12, and cooperates with the connecting seat to limit the lifting of the stabilizing rod 24. At the same time, to avoid self-motion of the dismounting slide 241, a mounting hole 242 is arranged in the middle of the dismounting slide 241, and a spring 243 is arranged in the mounting hole 242, one end of the spring 243 abuts against a protruding column 201 arranged at the corresponding position of the stabilizing rod 24, and the spring 243 abuts against the dismounting slide 241 to cooperate with the connecting seat, thereby avoiding self-motion of the dismounting slide 241.

[0072] Further, the top end of each of the two support vertical rods 12 connected with the fixed wheel 16 is rotatably connected with the seat support rod 20.

[0073] Specifically, the top end of each of the two support vertical rods 12 at the rear end is rotatably connected with the seat support rod 20, and the end of the seat support rod 20 at the rear end away from the support vertical rod 12 is also detachably connected with the top end of the reinforcing vertical rod 14, preferably by clamping, so as to facilitate dismounting. The two seat support rods 20 at the rear end can also be detachably mounted with a support 21 according to the use requirement, to realize the function of carrying two people, and even if no people are carried, the front-to-rear and left-to-right motion of the side support 13 can be limited by the seat support rods 20 at the front and rear ends, to improve the stability of the side support 13, and further improve the firmness of the trailer, to ensure the safety of carrying people.

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

[0075] Further, as shown in FIG. 5, the top of the reinforcing vertical rod 14 is also provided with a limiting device 141 for limiting disengagement of the seat support rod 20.

[0076] Specifically, since the seat support rod 20 is detachably connected with the top of the reinforcing vertical rod 14, in order to avoid the seat support rod 20 from being detached from the reinforcing vertical rod 14 due to jumping and the like, a limiting device 141 is further arranged on the connecting seat at the top end of the reinforcing vertical rod 14, which can limit the detachment of the seat support rod 20 when the seat support rod 20 is in the clamped state with the top end of the reinforcing vertical rod 14. Specifically, the limiting device 141 comprises a rotating handle, which is rotationally connected with the connecting seat. When it is needed to place the seat support rod 20, the rotating handle can be rotated to a predetermined angle so as not to affect the placement of the seat support rod 20, and then the seat support rod 20 is placed between the two side baffles, and the lateral movement of the seat support rod 20 is limited by the baffles. After the seat support rod 20 is clamped with the reinforcing vertical rod 14, the rotating handle can be rotated so as to abut against the seat support rod 20, thereby avoiding the lifting of the seat support rod 20. Meanwhile, in order to limit the shaking of the rotating handle, a limiting groove 203 is further arranged at the end where the seat support rod 20 is clamped with the reinforcing vertical rod 14, and the height of the rotating handle is slightly lower than that of the seat support rod 20. The rotating handle is made of a material with toughness, so that the rotating handle can be rotated into the limiting groove 203, thereby limiting the shaking of the rotating handle. Alternatively, a tension spring can be arranged at the bottom of the rotating handle. When the rotating handle is rotated above the limiting groove 203, the tension spring pulls the rotating handle downward, so that the rotating handle is clamped into the limiting groove 203.

[0077] Further, the direction wheel 17 and / or the fixed wheel 16 is controlled by power, and the direction lever assembly 19 can control the operation of the direction wheel 17 and / or the fixed wheel 16.

[0078] Specifically, in the embodiment, the direction wheel 17 and / or the fixed wheel 16 is preferably a hub motor. Alternatively, a middle motor is arranged between the two fixed wheels 16, and the two output ends of the middle motor are respectively in transmission connection with the fixed wheels 16. The fixed wheels 16 are driven to operate by the middle motor. In this scheme, a control structure for controlling the operation of the hub motor is arranged on the direction lever assembly 19. The functions of the control structure include but are not limited to acceleration, braking, start / stop, etc. Meanwhile, a power supply and a controller for processing control information are arranged on the trailer.

[0079] Further, as shown in FIG. 9, one end of the tail frame 22 is rotationally connected with the support vertical rod 12 on one side, and the other end of the tail frame 22 is provided with a rod sleeve 221 which is adapted to the support vertical rod 12.

[0080] Specifically, in one embodiment of the tail frame 22, one end of the tail frame 22 is rotatably connected to the support vertical rod 12 on one side, and the tail frame 22 is opened by rotating to one side. Through the opening of the tail frame 22, the trailer has the ability to load large items, and this opening mode also enables the trailer to be used for pet houses; and a rod sleeve 221 adapted to the support vertical rod 12 is further arranged at the other end of the tail frame 22, which can be sleeved on the support vertical rod 12 when the tail frame 22 does not need to be opened, thereby achieving the closing of the tail frame 22.

[0081] Further, as shown in FIG. 10, the bottom side of the tail frame 22 is rotatably connected to the end cross rod 18, and the two ends of the tail frame 22 are respectively provided with a rod sleeve 221 adapted to the support vertical rod 12. The two support vertical rods 12 connected to the fixed wheel 16 are respectively connected with a connecting piece 222, and one end of the connecting piece 222 away from the support vertical rod 12 is connected with the end of the tail frame 22.

[0082] Specifically, in another embodiment of the tail frame 22, the bottom side of the tail frame 22 is rotatably connected to the end cross rod 18 at the bottom end, and the two ends of the tail frame 22 are respectively connected with a connecting piece 222, and the other end of the connecting piece 222 is connected with the support vertical rod 12. The tail frame 22 is placed flat at the rear end of the support vertical rod 12 through the traction of the connecting piece 222, thereby enabling the trailer to load large goods and also increasing the loading capacity of the trailer. The two ends of the tail frame 22 are also respectively provided with a rod sleeve 221 adapted to the support vertical rod 12, which can be sleeved on the support vertical rod 12 when the tail frame 22 does not need to be opened, thereby achieving the closing of the tail frame 22.

[0083] Further, the side support 13 comprises: 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, and 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 reinforcing 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 reinforcing vertical rod 14. Each of the support vertical rods 12 can be telescopic.

[0084] Specifically, in one of the embodiments of the side support 13, each side support 13 comprises a first support rod 131, a second support rod 132, a third support rod 133, and a fourth support rod 134. The first support rod 131 and the second support rod 132 are cross-connected and rotatable at the cross-connection, and the third support rod 133 and the fourth support rod 134 are cross-connected and rotatable at the cross-connection. The first support rod 131 and the second support rod 132 are located at the front side of the reinforcing vertical rod 14, and the third support rod 133 and the fourth support rod 134 are located at the rear side of the reinforcing vertical rod 14. The first support rod 131 is rotatably connected to the connecting seat at the top end of the reinforcing vertical rod 14 adjacent to one end of the reinforcing vertical rod 14, and the second support rod 132 is rotatably connected to the connecting seat at the bottom end of the reinforcing vertical rod 14 adjacent to one 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] The third support rod 133 is rotatably connected to the connecting seat at the bottom end of the reinforcing vertical rod 14 adjacent to one end of the reinforcing vertical rod 14, and the fourth support rod 134 is rotatably connected to the connecting seat at the top end of the reinforcing vertical rod 14 adjacent to one 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 rear support vertical rod 12, and the other end of the fourth support rod 134 is rotatably connected to the connecting seat at the bottom end of the rear support vertical rod 12. In this scheme, the support vertical rod 12 is telescopic, so that the first support rod 131 and the second support rod 132, and the third support rod 133 and the fourth support rod 134 can rotate relative to the cross-connection.

[0086] Further, as shown in FIG. 4, the side support 13 comprises a first support rod 131, a second support rod 132, a third support rod 133, a fourth support rod 134, and an adapter rod 135. The first support rod 131 and the second support rod 132 are cross-connected and rotatable at the cross-connection, and the third support rod 133 and the fourth support rod 134 are cross-connected and rotatable at the cross-connection. 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 adapter rod 135, the other end of the adapter rod 135 is rotatably connected to the top end of the support vertical rod 12 connected to the direction wheel 17, and the other ends of the first support rod 131 and the second support rod 132 are rotatably connected to the corresponding reinforcing vertical rod 14. One end of the third support rod 133 and one end of 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 the adapter rod 135, the end of the adapter rod 135 away from the third support rod 133 is rotatably connected to the top of the support vertical rod 12 connected to the fixed wheel 16, and the end of the fourth support rod 134 away from the reinforcing vertical rod 14 is rotatably connected to the bottom end of the support vertical rod 12 connected to the fixed wheel 16.

[0087] Specifically, in another embodiment of the side support 13, each side support 13 comprises: a first support rod 131, a second support rod 132, a third support rod 133, a fourth support rod 134, and an adapter rod 135; the first support rod 131 and the second support rod 132 are cross arranged and can rotate at the cross, the third support rod 133 and the fourth support rod 134 are cross arranged and can rotate at the cross, the first support rod 131 and the second support rod 132 are located at the front side of the reinforcing vertical rod 14, and the third support rod 133 and the fourth support rod 134 are located at the rear side of the reinforcing vertical rod 14;

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

[0089] The third support rod 133 is rotationally connected to the connecting seat at the bottom end of the reinforcing vertical rod 14 at one end adjacent to the reinforcing vertical rod 14 and to the adapter rod 135 at the other end, and the end of the adapter rod 135 away from the third support rod 133 is rotationally connected to the connecting seat at the top end of the rear support vertical rod 12; the fourth support rod 134 is rotationally connected to the connecting seat at the top end of the reinforcing vertical rod 14 at one end adjacent to the reinforcing vertical rod 14 and to the connecting seat at the bottom end of the rear support vertical rod 12 at the other end; when the first support rod 131 and the second support rod 132 rotate relative to each other, the first support rod 131 lifts the reinforcing vertical rod 14, and the second support rod 132 lifts the adapter rod 135 to change from a flat state to a vertical state, so as to achieve the rotation of the first support rod 131 and the second support rod 132 without the need to set the support vertical rod 12 to be telescopic, thereby achieving the folding of the trailer, and the third support rod 133 and the fourth support rod 134 are the same;

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

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

[0092] Further, as shown in FIG. 4, the position corresponding to the adapter rod 135 of the seat support rod 20 is also provided with a sleeve 202 adapted to the adapter rod 135;

[0093] Specifically, in the second scheme of the side support 13, a clamping sleeve 202 adapted to the adapter rod 135 is arranged at the lower side of the seat support rod 20 corresponding to the adapter rod 135, when the seat support rod 20 is placed on the upper side of the side support 13, the clamping sleeve 202 is half-enclosed on the outer side of the adapter rod 135, in this way, the shaking and bending of the side support 13 under lateral force is limited, and the adapter rod 135 is pressed by the seat support rod 20, so that the adapter rod 135 is prevented from arching during use.

[0094] In summary, the application is provided with a reinforcing vertical rod in the middle of the side support, and the lateral force bearing capacity of the side support is improved by the supporting horizontal rod, and the seat support rod is arranged above the side support to further improve the stability of the side support, so as to ensure the stability of the trailer, the load carrying function of the trailer is realized by the supporting member, the trailer has high stability, high safety factor for carrying people, and large load capacity, so as to meet different use requirements.

[0095] The application is not limited to the description and embodiments described in the specification, and therefore other advantages and modifications can be easily realized by those skilled in the art, and the application is not limited to specific details, representative devices and the illustrated examples shown and described herein, without departing from the spirit and scope of the general concept defined by the claims and their equivalent ranges.

Claims

1. A foldable manned trailer, characterized in that, The utility model relates to a kind of foldable stroller, including: First chassis, second chassis, one end of the first chassis and the second chassis is rotatably connected; Two sides of the end of the first chassis and the second chassis away from each other are respectively connected with support vertical rods, and two support vertical rods of the same side are rotatably connected with side supports, and the middle part of each side support is provided with a reinforcing vertical rod, and the front and rear ends of the side support can be moved to the position of the reinforcing vertical rod and folded; The bottom end of two support vertical rods at one end is fixedly connected with fixed wheel, and the bottom end of two support vertical rods at the other end is rotatably connected with direction wheel; The top end and bottom end of two support vertical rods connected with the direction wheel and the bottom end of two support vertical rods connected with the fixed wheel are respectively connected with end cross bar; The end cross bar located at the bottom end of two support vertical rods connected with the direction wheel is further movably connected with direction rod assembly, the direction rod assembly can be vertically rotated and horizontally rotated relative to the connected end cross bar, the bottom end of the direction rod assembly is connected with the direction wheel, and the direction rod assembly controls the rotation of the direction wheel; The top end of two support vertical rods connected with the direction wheel is rotatably connected with seat support rod respectively, and the end away from the rotatable connection with the support vertical rod of each seat support rod is connected with the top of corresponding reinforcing vertical rod, and two seat support rods are further detachably connected with support member; The top of the reinforcing vertical rod is further provided with limiting device for limiting the disengagement of the seat support rod.

2. The foldable personnel trailer of claim 1, wherein, The bottom end of two support vertical rods connected with the direction wheel is further rotatably connected with foot pedal respectively.

3. The foldable personnel trailer of claim 1, wherein, The bottom end of two reinforcing vertical rods is fixedly connected with support cross bar.

4. The foldable personnel trailer of claim 3, wherein, The two sides of the end of the first chassis connected with the second chassis are respectively provided with first hook part, and the two sides of the end of the second chassis connected with the first chassis are respectively provided with second hook part, and the first hook part and the second hook part cooperate to clamp the support cross bar.

5. The foldable personnel trailer of claim 1, wherein, The middle part of the end cross bar located at the top end of two support vertical rods connected with the direction wheel is further provided with clamp device, and the clamp device is used to limit the vertical rotation of the direction rod assembly.

6. The foldable personnel trailer of claim 5, wherein, The clamp device includes: sleeve, limiting piece;The sleeve is matched with the direction rod assembly, the sleeve is provided with opening, and the limiting piece is arranged at the opening to close the opening.

7. The foldable personnel trailer of claim 1, wherein, The top end of two support vertical rods connected with the fixed wheel is further provided with stabilizing rod, one end of the stabilizing rod is rotatably connected with one of the support vertical rods, and the other end of the stabilizing rod is detachably connected with the other support vertical rod.

8. The foldable personnel trailer of claim 7, wherein, The end of the stabilizing rod away from the rotatable connection with one of the support vertical rods is provided with limit dismounting piece, the limit dismounting piece is slidably connected with the stabilizing rod, and the limit dismounting piece cooperates with corresponding support vertical rod to limit the dismounting of the stabilizing rod.

9. The foldable personnel trailer of claim 1, wherein, The top end of two support vertical rods connected with the fixed wheel is rotatably connected with the seat support rod respectively.

10. The foldable personnel trailer of claim 1, wherein, The side support frame comprises: a first support rod, a second support rod, a third support rod, and a fourth support rod; the middle part of the first support rod is rotationally connected with the middle part of the second support rod, and the middle part of the third support rod is rotationally connected with the middle part of the fourth support rod; one end of the first support rod and the second support rod is rotationally connected with the corresponding support vertical rod, and the other end is rotationally connected with the corresponding reinforcing vertical rod; one end of the third support rod and the fourth support rod is rotationally connected with the corresponding support vertical rod, and the other end is rotationally connected with the corresponding reinforcing vertical rod; and each support vertical rod is telescopically arranged.

11. The foldable personnel trailer of claim 1, wherein, The side support frame comprises: a first support rod, a second support rod, a third support rod, a fourth support rod, and an adapter rod; the first support rod and the second support rod are arranged in a cross shape and can rotate at the cross; the third support rod and the fourth support rod are arranged in a cross shape and can rotate at the cross; one end of the first support rod is rotationally connected with the bottom end of the support vertical rod connected with the direction wheel; one end of the second support rod is rotationally connected with the adapter rod; the other end of the adapter rod is rotationally connected with the top end of the support vertical rod connected with the direction wheel; the other end of the first support rod and the second support rod is respectively rotationally connected with the corresponding reinforcing vertical rod; one end of the third support rod and the fourth support rod is rotationally connected with the corresponding reinforcing vertical rod; the other end of the third support rod is connected with an adapter rod; one end of the adapter rod away from the third support rod is rotationally connected with the top of the support vertical rod connected with the fixed wheel; and one end of the fourth support rod away from the reinforcing vertical rod is rotationally connected with the bottom of the support vertical rod connected with the fixed wheel.

12. The foldable personnel trailer of claim 1, wherein, The direction wheel and / or the fixed wheel are controlled to operate by power; and the direction rod assembly can control the operation of the direction wheel and / or the fixed wheel.

13. The fold-over personnel trailer of claim 1, wherein, Two support vertical rods connected with the fixed wheel are further provided with a rotatable tail frame.

14. The foldable personnel trailer of claim 13, wherein, One end of the tail frame is rotationally connected with the support vertical rod on one side; the other end of the tail frame is provided with a rod sleeve matched with the support vertical rod.

15. The foldable personnel trailer of claim 13, wherein, The bottom side of the tail frame is rotationally connected with the end cross rod; both ends of the tail frame are respectively provided with a rod sleeve matched with the support vertical rod; and two support vertical rods connected with the fixed wheel are respectively connected with a connecting piece; one end of the connecting piece away from the support vertical rod is connected with the end of the tail frame.

16. The foldable personnel trailer of claim 11, wherein, The position corresponding to the adapter rod of the seat support rod is further provided with a clamping sleeve matched with the adapter rod; and the seat support rod presses the adapter rod through the clamping sleeve.

17. The foldable personnel trailer of claim 1 or 10 or 11, wherein, The reinforcing vertical rod is telescopically arranged.

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