Folding type manned structure of manned folding electric trailer

Abstract

The folding type manned structure of the manned folding electric trailer comprises a folding trailer body, the folding trailer body is provided with supporting rods, the two supporting rods at at least one end are rotationally connected with folding foot bar assemblies correspondingly, the folding foot bar assemblies are arched from the middle to be folded, and the ends, away from the supporting rods, of the folding foot bar assemblies are rotationally connected with direction control mechanisms; a direction control mechanism is arranged on the folding vehicle body, a first wheel is rotationally arranged below the direction control mechanism, the first wheel is further in transmission connection with the direction control mechanism, a second wheel is arranged at the bottom of the folding vehicle body, the first wheel and the second wheel are arranged in a spaced mode, and the folding vehicle body is further provided with a controller and a battery. One end of the second foot bar is rotationally connected with one end of the first foot bar, the two foot bars can carry people when unfolded and can be folded relatively when not used, folding of the foot bars is achieved, an existing limiting structure is replaced with the rotation limiting rod, design is reasonable, the structure is simpler, cost is further reduced, assembling is easy, and production efficiency is effectively improved.

Description

Technical Field

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

[0002] A foldable trailer is a foldable and towable cargo vehicle. It is widely used in transporting things because of its simple use, ability to carry cargo, convenient storage, and time-saving and labor-saving properties. It is now often used in outdoor activities or short-distance transportation.

[0003] At present, most of the existing folding electric trailers only realize electric power assistance, such as patent number CN202220922980.0 (power-assisted trailer). Although this type of trailer improves convenience and is easier to use, it can be seen from the contents recorded in its specification and the drawings in the specification that it cannot carry people, and when in use, it still requires manual traction and requires the user to walk on foot, which can easily make the user feel tired and the user experience is not good. For this reason, engineers have designed an electric scooter that can carry people, such as patent number CN202223168040.6 (a manned folding pedal for an outdoor folding electric trailer). By setting a foldable pedal assembly at the front end of the folding body, the foldable pedal assembly can be used. The pedal assembly can be unfolded to carry people. This trailer can realize electric power assistance and the function of carrying people, which greatly improves the convenience of use. It can also be folded up when not in use to reduce the overall size and improve the convenience of carrying. However, in actual use, the inventor found that this method requires the front wheel to be on the ground so that it can cooperate with the rear wheel to support and erect the frame after folding. Therefore, the pedal assembly needs to be folded in half so that the wheel does not need to change its position relative to the pedal assembly. At the same time, in order to make the wheel in a vertical state to better support the frame, it is necessary to increase the structure to enable the wheel to rotate relative to the pedal assembly when needed, which makes the structure complicated and the cost will increase accordingly.

[0004] Therefore, it is urgent to design a foldable passenger-carrying structure of a passenger-carrying foldable electric trailer to overcome one or more deficiencies of the above-mentioned prior arts. Utility Model Content

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a foldable manned structure of a manned foldable electric trailer, characterized in that it includes: a foldable body, support rods are respectively provided on both sides of the front end and the rear end of the foldable body, and the two support rods at at least one end are rotatably connected to a folding pedal rod assembly, the folding pedal rod assembly is arched from the middle and folded in half, the folding pedal rod assembly is rotatably connected to a control mechanism at one end away from the support rod, a first wheel is rotatably provided below the control mechanism, the first wheel is also transmission-connected to the control mechanism, a second wheel is provided at the bottom of the foldable body, the first wheel and the second wheel are spaced apart, the foldable body is also provided with a controller and a battery for controlling the operation of the first wheel and / or the second wheel, and the folding pedal rod assembly pulls the control mechanism in the direction of the foldable body when it is arched from the middle and folded in half.

[0006] In a preferred embodiment, a bracket connecting seat is fixedly provided at the bottom end of each support rod connected to the folding pedal rod assembly, and one end of the folding pedal rod assembly away from the direction control mechanism is rotatably connected to the bracket connecting seat.

[0007] In a preferred embodiment, the folding pedal rod assembly includes: a first pedal rod, a limiting pull rod, a second pedal rod, and a rotation limiting rod; one end of the first pedal rod is rotationally connected to the direction control mechanism, and the other end is rotationally connected to the limiting pull rod, the end of the limiting pull rod away from the first pedal rod is rotationally connected to the corresponding support rod, one end of the second pedal rod is rotationally connected to the bottom end of the support rod, and the other end is rotationally connected to the middle part of the first pedal rod, one end of the rotation limiting rod is rotationally connected to the end of the second pedal rod away from the support rod, and the other end is rotationally connected to the direction control mechanism.

[0008] In a preferred embodiment, it also includes: a lock hook, the lock hook is in a "7" shape, the corner of the lock hook is rotatably connected to the first pedal, one end of the lock hook is provided with a hook holding portion, the second pedal and the lock hook are provided with an unfolding lock column corresponding to the lock hook, the hook holding portion is adapted to the unfolding lock column, the end of the lock hook provided with the hook holding portion is also provided with a slot, the slot and the hook holding portion are spaced apart, a card column is provided at a predetermined position on the support rod, the slot is adapted to the card column, the other end of the lock hook is provided with a dial handle, the end of the lock hook provided with the dial handle is connected to a tension spring, and the tension spring is provided on the first pedal.

[0009] In a preferred embodiment, a synchronization rod is connected between the two folding pedal rod assemblies.

[0010] In a preferred embodiment, the direction control mechanism includes: a steering rod assembly, a connecting rod, and a link assembly; two first wheels are provided, and the two first wheels are respectively located below the two ends of the connecting rod and are rotatably connected to the connecting rod; a horizontally extending wheel swing arm is provided on the side of the two first wheels away from the folding body; the steering rod assembly passes through the middle of the connecting rod, the link assembly is connected to the bottom of the steering rod assembly, the two ends of the link assembly are respectively rotatably connected to the corresponding wheel swing arm, the steering rod assembly controls the direction of the first wheel through the link assembly, and the two ends of the connecting rod are respectively rotatably connected to the corresponding folding pedal rod assembly.

[0011] In a preferred embodiment, connecting ears are respectively provided at both ends of a side of the connecting rod facing the folding vehicle body, and one end of the folding pedal rod assembly away from the support rod is rotatably connected to the connecting ears.

[0012] In a preferred embodiment, the connecting rod assembly includes: a transmission rod, a direction connecting rod movably connected to the middle part of the transmission rod, an end of the direction connecting rod away from the transmission rod is fixedly connected to the bottom end of the direction rod assembly, and the two ends of the transmission rod are respectively rotatably connected to the corresponding wheel swing arm.

[0013] In a preferred embodiment, the direction rod assembly includes: an outer rod, an inner rod, and a turning rod; the turning rod is passed through the middle part of the connecting rod, the top of the turning rod is rotatably connected to the outer rod, the inner rod is slidably arranged in the outer rod, the top of the inner rod is connected to a direction handle, and a limit assembly is provided in the end of the outer rod connected to the turning rod, and the limit assembly is used to limit the rotation of the outer rod relative to the turning rod.

[0014] In a preferred embodiment, the direction handle is ring-shaped, and folding grooves are respectively provided on both sides of the direction handle. A grip rod is rotatably connected to the same end of the two folding grooves, and one of the grip rods is rotatably arranged. A handle limit pin is also provided at the end of the grip rod connected to the folding groove, which is used to limit the grip rod when the grip rod is received in the folding groove or when the grip rod is horizontal relative to the handle ring. A plurality of control buttons and a display device are also provided on the direction handle, and the control buttons and the display device are respectively electrically connected to the controller.

[0015] In a preferred embodiment, a telescopic pin is provided inside the inner rod, a plurality of telescopic holes adapted to the telescopic pin are provided on the outer rod, and a telescopic button for controlling the extension and retraction of the telescopic holes is also provided on the bottom inner wall of the direction handle.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a first pedal rod and a second pedal rod, one end of the second pedal rod is rotatably connected to one end of the first pedal rod, the two pedal rods can be unfolded to carry people, and can be folded relative to each other when not in use to achieve the folding of the pedal rods, and the existing limiting structure is replaced by a rotation limiting rod, the design is reasonable, the structure is simpler, the cost is further reduced, the assembly is also simple, and the production efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural schematic diagram of the folding pedal rod assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lock hook of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the direction control mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the connecting rod assembly of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the direction rod assembly of the utility model;

[0023] Figure 7 It is a cross-sectional view of the direction rod assembly of the utility model;

[0024] Figure 8 This is a diagram of the utility model in a folded state;

[0025] Fig. 9 This is the circuit schematic diagram of the controller of the utility model;

[0026] Fig.10 This is the electrical connection block diagram of the utility model.

[0027] In the figure:

[0028] 10. Folding vehicle body; 11. Support rod; 111. Clamp column; 12. Bracket connecting seat; 13. Second wheel; 14. Controller; 15. Battery;

[0029] 20. folding pedal assembly; 21. first pedal; 22. rotation limiting rod; 23. second pedal; 231. unfolding lock column; 24. limit pull rod; 25. synchronization rod; 26. lock hook; 261. hook holding part; 262. card slot; 263. dial handle; 27. tension spring;

[0030] 30. Steering mechanism; 31. Steering rod assembly; 311. Outer rod; 3111. Telescopic card hole; 312. Inner rod; 3121. Telescopic card pin; 313. Turning rod; 314. Steering handle; 3141. Telescopic button; 315. Folding slot; 316. Grip; 317. Handle limit card pin; 318. Control button; 319. Display device; 32. Limit assembly; 321. Folding limit pin; 322. Pin head; 323. Rotating shaft slide groove; 324. Folding limit return spring; 33. Connecting rod; 331. Connecting ear; 34. Connecting rod assembly; 341. Transmission rod; 342. Steering connecting rod; 35. First wheel; 351. Wheel swing arm. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1-Figure 10 As shown, the utility model provides a foldable passenger structure of a passenger folding electric trailer, comprising: a foldable vehicle body 10, support rods 11 are respectively provided on both sides of the front end and the rear end of the foldable vehicle body 10, and the two support rods 11 at at least one end are rotatably connected to a folding pedal rod assembly 20, the folding pedal rod assembly 20 is arched from the middle and folded in half, and the end of the folding pedal rod assembly 20 away from the support rod 11 is rotatably connected to a control mechanism 30, a first wheel 35 is rotatably provided below the control mechanism 30, and the first wheel 35 is also transmission-connected to the control mechanism 30, a second wheel 13 is provided at the bottom of the foldable vehicle body 10, and the first wheel 35 is spaced from the second wheel 13, and the foldable vehicle body 10 is also provided with a controller 14 and a battery 15 for controlling the operation of the first wheel 35 and / or the second wheel 13, and when the folding pedal rod assembly 20 is arched from the middle and folded in half, the control mechanism 30 is pulled toward the direction of the foldable vehicle body 10;

[0037] Specifically, the folding vehicle body 10 can be a folding type vehicle body or a gathering type vehicle body. The folding type vehicle body is folded from the front and back to the middle, and the gathering type vehicle body is gathered from the front and back, left and right to the middle. Since the folding type vehicle body does not need to be folded in the left and right directions, the folding type vehicle body structure is relatively simple, so this embodiment is described by taking the folding type vehicle body as an example; the folding vehicle body 10 is provided with a total of four support rods 11, which are respectively located on both sides of the front end and the rear end of the folding vehicle body 10, wherein the bottom end of the support rod 11 is rotatably connected with a folding pedal rod assembly 20, and the folding pedal rod assembly 20 can be arched from the middle and folded in half, and the folding pedal rod assembly 20 can be rotated relative to the support rod 11, and the folding pedal rod assembly 20 can be provided with only two and located at one end of the folding vehicle body 10 or a group of two is respectively located at the front of the folding vehicle body 10 The folding lever assembly 20 is preferably a folding lever assembly 20, and the folding lever assembly 20 is preferably a folding lever assembly 20. The folding lever assembly 20 is preferably a folding lever assembly 20, and the folding lever assembly 20 is preferably a folding lever assembly 20. The folding lever assembly 20 is preferably a folding lever assembly 20, and the folding lever assembly 20 is preferably a folding lever assembly 20. The folding lever assembly 20 is preferably a folding lever assembly 20, and the folding lever assembly 20 is preferably a folding lever assembly 20. The folding lever assembly 20 is preferably a folding lever assembly 20, and the folding lever assembly 20 is preferably a folding lever assembly 20.A first wheel 35 is connected below the steering mechanism 30. The first wheel 35 can be one or two. When one first wheel 35 is selected, the first wheel 35 needs to be set below the middle of the steering mechanism 30. When two first wheels 35 are provided, the two first wheels 35 are set at a predetermined distance according to needs. The number and the distance between the first wheels 35 affect the driving stability of the electric trailer. The stability of the larger distance is better than that of the smaller distance. In this application, in order to improve the stability of the electric trailer during driving, two first wheels 35 are preferably used, and the width of the two first wheels 35 is preferably 1 / 4 of the first wheel 35. The middle line of the degree corresponds to the axis of the support rod 11, and the stability is guaranteed without exceeding the width of the folding body 10 by too much. The two first wheels 35 are connected to the control mechanism 30 in a transmission manner, and the control mechanism 30 can control the two first wheels 35 to turn synchronously. A second wheel 13 is also provided at the bottom of the folding body 10. The second wheel 13 is arranged at an interval with the first wheel 35. The second wheel 13 can be one or two. The total number of the first wheel 35 and the second wheel 13 must be at least three, preferably two respectively, and the stability of four is better. It should be pointed out that when the folding body 1 When both the front and rear ends of the folding vehicle body 10 are provided with a folding pedal assembly 20 and a steering mechanism 30, the second wheel 13 needs to be arranged below the steering mechanism 30 at the rear end to achieve cargo and front and rear passenger transportation. At the same time, in order to improve the carrying capacity, a third wheel (not shown in the figure) can be arranged below one end of the folding vehicle body 10. When the third wheel is provided, the second wheel 13 needs to be a universal wheel to avoid affecting the steering, and needs to be staggered with the first wheel 35 and the second wheel 13 in the length direction to avoid being unable to be completely folded due to the volume of the wheel. The third wheel needs to be arranged at the end away from the control direction. The lever principle makes it easier to make the end of the control direction touch the ground to avoid losing control of the direction; the folding vehicle body 10 is also provided with a controller 14 and a battery 15. In this embodiment, the first wheel 35 and the second wheel 13 can both be driving wheels with hub motors, or one of the first wheel 35 and the second wheel 13 can be selected as the aforementioned driving wheel. It should be pointed out here that if the folding vehicle body 10 is provided with a third wheel and a single drive is adopted, the wheel at the end away from the control direction should not be the driving wheel to prevent the driving wheel from slipping due to insufficient friction between the driving wheel and the ground, while the four-wheel drive is not affected. ;

[0038] Furthermore, a bracket connection seat 12 is fixedly provided at the bottom end of each support rod 11 connected to the folding pedal rod assembly 20, and one end of the folding pedal rod assembly 20 away from the direction control mechanism 30 is rotatably connected to the bracket connection seat 12;

[0039] Specifically, the bottom end of each support rod 11 connected to the folding pedal rod assembly 20 is fixedly connected to a bracket connecting seat 12, and the bracket connecting seat 12 is used to connect to the frame. The folding pedal rod assembly 20 is rotatably connected to one end of the bracket connecting seat 12 away from the frame, and the folding pedal rod assembly 20 can rotate relative to the bracket connecting seat 12.

[0040] Further, the folding pedal rod assembly 20 includes: a first pedal rod 21, a limit rod 24, a second pedal rod 23, and a rotation-limiting rod 22; one end of the first pedal rod 21 is rotationally connected to the direction control mechanism 30, and the other end is rotationally connected to the limit rod 24, the end of the limit rod 24 away from the first pedal rod 21 is rotationally connected to the corresponding support rod 11, one end of the second pedal rod 23 is rotationally connected to the bottom end of the support rod 11, and the other end is rotationally connected to the middle part of the first pedal rod 21, one end of the rotation-limiting rod 22 is rotationally connected to the end of the second pedal rod 23 away from the support rod 11, and the other end is rotationally connected to the direction control mechanism 30;

[0041] Specifically, the folding pedal rod assembly 20 includes: a first pedal rod 21, a limit pull rod 24, a second pedal rod 23, and a rotation limit rod 22; one end of the second pedal rod 23 is rotationally connected to the bracket connecting seat 12, and the other end is rotationally connected to the middle part of the first pedal rod 21, one end of the first pedal rod 21 is rotationally connected to the control mechanism 30, and the other end is placed above the second pedal rod 23, wherein the first pedal rod 21 and the control mechanism 30 are rotationally connected in a limited position, that is, it can only rotate within a predetermined angle relative to the control mechanism 30, and the second pedal rod 23 is located below the first pedal rod 21. When the end of the first pedal rod 21 away from the control mechanism 30 is lifted, the second pedal rod 23 is driven to rotate and lift upward relative to the bracket connecting seat 12 until the first pedal rod 21 and the second pedal rod 23 are in contact with each other. In order to avoid the second pedal rod 23 rotating relative to the folding vehicle body 10 due to the load during use, The end of the first pedal rod 21 away from the control mechanism 30 is rotatably connected to the limit pull rod 24, and the end of the limit pull rod 24 away from the first pedal rod 21 is rotatably connected to the support rod 11. When the second pedal rod 23 and the first pedal rod 21 are horizontally fitted, the limit pull rod 24 pulls the first pedal rod 21 through the support rod 11 to prevent the first pedal rod 21 from sinking under the drive of the second pedal rod 23. At the same time, a limited rotation rod 22 is also connected between the second pedal rod 23 and the control mechanism 30. The two ends of the limit rotation rod 22 are respectively rotatably connected to the second pedal rod 23 and the control mechanism 30, and the limit rotation rod 22 and the end of the first pedal rod 21 rotatably connected to the control mechanism 30 are not coaxially arranged, so that the control mechanism 30 cannot rotate at will under the two-point connection restriction of the limit rod 22 and the first pedal rod 21, thereby preventing the control mechanism 30 from rotating relative to the first pedal rod 21.

[0042] It should be pointed out that, due to the provision of the limit pull rod 24, the upward rotation of the first pedal bar 21 will be hindered by the limit pull rod 24. When folding, a certain force is required to make the first pedal bar 21 lift the folding body 10 obliquely to the rear through the limit pull rod 24, and when the first pedal bar 21 rotates upward, the control mechanism 30 will synchronously rotate to a certain extent due to the existence of the limit rod 22, so that the control mechanism 30 is tilted forward, so that there will be no movement conflict. When the first pedal bar 21 rotates upward by a certain angle, the limit pull rod 24 is driven and no downward limiting force is generated. The first pedal bar 21 can drive the second pedal bar 23 to fit together in a vertical state.

[0043] Further, it also includes: a lock hook 26, the lock hook 26 is in a "7" shape, the corner of the lock hook 26 is rotatably connected to the first pedal 21, one end of the lock hook 26 is provided with a hook holding portion 261, the second pedal 23 is provided with an unfolding lock column 231 at a position corresponding to the lock hook 26, the hook holding portion 261 is adapted to the unfolding lock column 231, the end of the lock hook 26 provided with the hook holding portion 261 is also provided with a card slot 262, the card slot 262 is arranged at an interval with the hook holding portion 261, a card column 111 is arranged at a predetermined position on the support column 11, the card slot 262 is adapted to the card column 111, the other end of the lock hook 26 is provided with a dial handle 263, and the end of the lock hook 26 provided with the dial handle 263 is connected to a tension spring 27, and the tension spring 27 is arranged on the first pedal 21;

[0044] Specifically, in order to prevent the first pedal 21 and the second pedal 23 from jumping when driving on a rough road, a locking hook 26 is rotatably connected to the end of the first pedal 21 away from the control mechanism 30. The locking hook 26 is in a "7" shape, and the corner of the locking hook 26 is rotatably connected to the first pedal 21. A hook holding portion 261 is provided at one end of the locking hook 26, and an unfolding lock column 231 is provided at a position corresponding to the second pedal 23. When the first pedal 21 and the second pedal 23 are in contact with each other in a horizontal state, the hook holding portion 261 is hooked on the unfolding lock column 231, thereby fixing the first pedal 21 and the second pedal 23 in a horizontal state. In order to fix the first pedal 21 and the second pedal 23 in the folded state and prevent them from unfolding by themselves, a clamping groove 262 is also provided at the end of the locking hook 26 where the hook holding portion 261 is provided, and a clamping column 111 is provided at a position corresponding to the support column 11. When the lock 21 is in the vertical state, the locking column 111 can be embedded in the locking groove 262, so that the first pedal 21 and the second pedal 23 are fixed to the support rod 11 in the vertical state to prevent them from unfolding automatically. To facilitate unlocking, a toggle handle 263 is provided at the other end of the lock hook 26, and a tension spring 27 is connected to the end of the lock hook 26 with the toggle handle 263. The other end of the tension spring 27 is connected to the first pedal 21. The tension of the tension spring 27 enables the lock hook 26 to always have a force to rotate in one direction, so that the hook holding portion 261 or the locking groove 262 can automatically cooperate when corresponding to the unfolding lock column 231 or the locking column 111. When unlocking is required, it is only necessary to toggle the toggle handle 263 to make the lock hook 26 rotate in the opposite direction to achieve unlocking. This structure integrates the unfolding lock and the folding lock on one lock hook 26, that is, the lock hook 26 can be locked in the unfolded state and locked in the folded state, so as to achieve multiple uses and a simpler structure.

[0045] Furthermore, a synchronization rod 25 is connected between the two folding pedal rod assemblies 20. Specifically, since two folding pedal rod assemblies 20 are provided at the same end, in order to realize the synchronous movement of the two folding pedal rod assemblies 20, a synchronization rod 25 is connected between the two first pedal rods 21. The two ends of the synchronization rod 25 are fixedly connected to the corresponding first pedal rods 21, so that the movement of one of them can drive the other to move, thereby ensuring synchronization and improving coordination.

[0046] Further, in the present embodiment, the direction control mechanism 30 comprises: a direction rod assembly 31, a connecting rod 33, and a connecting rod assembly 34; two first wheels 35 are provided, the two first wheels 35 are respectively located below the two ends of the connecting rod 33 and are rotatably connected to the connecting rod 33, a horizontally extending wheel swing arm 351 is provided on the side of the two first wheels 35 away from the folding vehicle body 10, the direction rod assembly 31 is penetrated through the middle of the connecting rod 33, the connecting rod assembly 34 is connected to the bottom of the direction rod assembly 31, the two ends of the connecting rod assembly 34 are respectively rotatably connected to the corresponding wheel swing arm 351, the direction rod assembly 31 controls the direction of the first wheel 35 through the connecting rod assembly 34, and the two ends of the connecting rod 33 are respectively rotatably connected to the corresponding folding pedal rod assembly 20;

[0047] Specifically, the direction control mechanism 30 includes: a direction rod assembly 31, a connecting rod 33, and a connecting rod assembly 34; each end of the connecting rod 33 is rotatably connected to the corresponding first pedal 21 and the rotation-limiting rod 22, the direction rod assembly 31 is penetrated through the middle part of the connecting rod 33, and the bottom end passes through the connecting rod 33 and is connected to the connecting rod assembly 34, and the direction rod assembly 31 can rotate in situ relative to the connecting rod 33. In this embodiment, two first wheels 35 are provided, and the two first wheels 35 are rotatably arranged at the two ends of the connecting rod 33. The two first wheels 35 can rotate in situ relative to the connecting rod 33. A horizontally extending wheel swing arm 351 is provided on a side of each first wheel 35 away from the folding body 10. The two first wheels 35 are rotatably connected to the two ends of the connecting rod assembly 34 through the wheel swing arm 351. When the direction rod assembly 31 rotates, it drives the connecting rod assembly 34 to move, and the connecting rod assembly 34 drives the first wheels 35 rotating at its two ends to rotate synchronously in the same direction, thereby realizing the direction control of the first wheels 35.

[0048] Furthermore, the two ends of the connecting rod 33 facing the folding body 10 are respectively provided with connecting ears 331, and the end of the folding pedal rod assembly 20 away from the support rod 11 is rotatably connected to the connecting ears 331;

[0049] Specifically, connecting ears 331 extending outward are respectively provided at both ends of the connecting rod 33 facing the folding body 10, and the end of the first pedal bar 21 away from the connecting ear 331 is rotatably connected. The connecting ear 331 extending outward can stagger the connection point between the first pedal bar 21 and the connecting rod 33 and the connection point between the first wheel 35 and the connecting rod 33, thereby facilitating the unfolding of the first pedal bar 21 with less effort; in order to further improve the bearing capacity of the first pedal bar 21, the bottom of the connecting ear 331 is closed. When the first pedal bar 21 is rotated downward by a predetermined angle relative to the connecting ear 331, it is restricted by the structure of the connecting ear 331 and cannot continue to rotate, thereby supporting the first pedal bar 21, thereby improving the bearing capacity of the first pedal bar 21.

[0050] A foot brake (not shown) is provided on one end of the connecting rod 33, and the foot brake is connected to the first wheel 35 and / or the second wheel 13 for braking.

[0051] Further, the connecting rod assembly 34 includes: a transmission rod 341, a direction connecting rod 342 is movably connected to the middle of the transmission rod 341, an end of the direction connecting rod 342 away from the transmission rod 341 is fixedly connected to the bottom end of the direction rod assembly 31, and both ends of the transmission rod 341 are respectively rotatably connected to the corresponding wheel swing arm 351;

[0052] Specifically, the direction rod assembly 31 passes through one end of the connecting rod 33 and is fixedly connected to the direction link 342. The rotation of the direction rod assembly 31 will drive the end of the direction link 342 away from the direction rod assembly 31 to rotate around the direction rod assembly 31. A sliding groove is provided at the end of the direction link 342 away from the direction rod assembly 31. At the same time, a sliding shaft is provided in the middle of the transmission rod 341. The transmission rod 341 is movably connected to the direction link 342 through the sliding shaft. The two ends of the transmission rod 341 are respectively rotatably connected to the corresponding wheel swing arms 351. When the direction link 342 rotates, it will drive the transmission rod 341 to move left and right, and the transmission rod 341 will drive the two first wheels 35 to rotate synchronously. The sliding groove is used to enable the sliding shaft to be displaced when the direction link 342 rotates to avoid movement conflicts.

[0053] Furthermore, in this embodiment, the direction rod assembly 31 includes: an outer rod 311, an inner rod 312, and a turning rod 313; the turning rod 313 is inserted into the middle portion 33 of the connecting rod, the top of the turning rod 313 is rotatably connected to the outer rod 311, the inner rod 312 is slidably arranged in the outer rod 311, the top of the inner rod 312 is connected to a direction handle 314, and a limit assembly 32 is arranged in one end of the outer rod 311 connected to the turning rod 313, and the limit assembly 32 is used to limit the rotation of the outer rod 311 relative to the turning rod 313;

[0054] Specifically, the inner rod 312 is movably arranged in the outer rod 311, the turning rod 313 is penetrated in the middle of the connecting rod 33, the turning rod 313 can rotate relative to the connecting rod 33, and the direction connecting rod 342 is fixedly connected to the bottom end of the turning rod 313, the top of the turning rod 313 is rotatably connected to the bottom end of the outer rod 311, and the outer rod 311 can rotate vertically relative to the turning rod 313 to change the angle of the direction rod assembly 31 when towing is required, so as to facilitate towing; in order to limit the free rotation of the outer rod 311 relative to the turning rod 313, a The limit position assembly 32 includes: a folding limit latch 321 and a folding limit reset spring 324. The folding limit latch 321 is slidably arranged in one end of the outer rod 311 connected to the turning rod 313. The folding limit latch 321 can slide up and down in the outer rod 311. A latch head 322 is provided on the top of the folding limit latch 321. The folding limit reset spring 324 is sleeved on the outside of one end of the folding limit latch 321. One end of the folding limit reset spring 324 abuts against the latch head 322, and the other end abuts against the bottom end of the outer rod 311. The bottom end of the outer rod 311 is also provided with a through hole for the folding limit latch 321 to pass through. The folding rod 313 is fixed to the outer rod 311, and the folding limit pin 321 is pressed against the outer rod 311 to release the folding limit pin 321. When the rod 311 and the turning rod 313 are fixed, it is only necessary to extend the inner rod 312 out of the outer rod 311. At this time, the pin loses the squeezing of the inner rod 312, and the folding limit return spring 324 generates a restoring force to lift the folding limit pin 321 and retract it into the end of the outer rod 311. At this time, the fixation between the outer rod 311 and the turning rod 313 is released. In order to prevent the movement of the folding limit pin 321 from being restricted by the rotating shaft at the connection between the outer rod 311 and the turning rod 313, a rotating shaft slot 323 is provided on the folding limit pin 321, and the rotating shaft is located in the rotating shaft slot 323, thereby avoiding movement conflict.

[0055] Furthermore, in the present embodiment, the direction handle 314 is annular, and folding grooves 315 are respectively provided on both sides of the direction handle 314. A grip 316 is rotatably connected to the same end of the two folding grooves 315. One of the grips 316 is rotatably arranged. A handle limit latch 317 is also provided at one end of the grip 316 connected to the folding groove 315, which is used to limit the grip 316 when the grip 316 is received in the folding groove 315 or when the grip 316 is horizontal relative to the handle ring. A plurality of control buttons 318 and a display device 319 are also provided on the direction handle 314, and the control buttons 318 and the display device 319 are respectively electrically connected to the controller 14.

[0056] Specifically, the shape of the direction handle 314 can be an inverted trapezoid, a triangle, a rectangle, a circle, or other polygons, so that the user can put his hand in the direction handle 314 for dragging. Folding grooves 315 are respectively provided on both sides of the direction handle 314, and a grip rod 316 is rotatably connected to one end of the folding sleeve. The grip rod 316 can be stored in the folding groove 315 when not in use, and the grip rod 316 can be rotated to be horizontal when needed. One of the two grip rods 316 can be set to rotate, that is, the grip rod 316 can rotate in situ on the direction handle 314, just like the throttle grip of an electric bicycle, and the rotation speed of the external electric wheel can be controlled by the rotation angle; a handle limit pin 317 is also provided on the top surface of the end where the folding groove 315 and the grip rod 316 are connected. The handlebar limit pin 317 is a pin structure with a spring inside. At the same time, a limit hole (not shown in the figure) adapted to the handlebar limit pin 317 is provided on the end where the handlebar 316 is connected to the folding groove 315, which is used to limit the handlebar 316 when the handlebar 316 is in a horizontal state or stored relative to the direction handle 314; a plurality of control buttons 318 are also provided on the direction handle 314, and the control buttons 318 include but are not limited to forward / reverse buttons, driving / towing switching buttons, trailer power-assist speed control buttons, headlight switch buttons, horn buttons, turn signal control buttons, etc. For details, reference can be made to the button design of the electric bicycle in the prior art. A display device 319 for displaying power and speed is also provided on the direction handle 314, and the display device 319 and the control buttons 318 are respectively electrically connected to the controller 14.

[0057] Furthermore, a telescopic latch 3121 is provided inside the inner rod 312, a plurality of telescopic holes 3111 adapted to the telescopic latch 3121 are provided on the outer rod 311, and a telescopic button 3141 for controlling the extension and retraction of the telescopic holes 3111 is also provided on the bottom inner wall of the direction handle 314;

[0058] Specifically, a telescopic pin 3121 is provided in the inner rod 312, and the telescopic pin 3121 is adapted to the telescopic hole 3111. A telescopic button 3141 is also provided on the direction handle 314. The telescopic pin 3121 will pass through the inner rod 312 and insert into the telescopic hole 3111 on the outer rod 311 according to the pressing of the telescopic button 3141 to restrict the inner rod 312 and prevent the inner rod 312 from moving freely in the outer rod 311. The specific structure between the telescopic button 3141 and the telescopic pin 3121 adopts the existing technology, and can refer to the pull rod limiting structure of the existing luggage case or the structure disclosed in Chinese patent CN201821724858.2, so it will not be described in detail here.

[0059] It should be pointed out that in order to improve the comfort of use of the trailer, a foldable seat panel can be provided above the front end of the foldable body 10. When the user uses it, the seat panel can be lowered and sat on, the first pedal bar 21 can be stepped on, and the steering rod assembly 31 can be held by the user. At the same time, a pedal can be fixedly provided between the two first pedal bars 21, and the pedal can be folded as the first pedal bar 21 is folded, so that people can stand or put their feet.

[0060] It should be noted that when the folding vehicle body adopts a gathered type vehicle body, in order to avoid affecting the folding of the folding vehicle body, the synchronization rod 25 and the connecting rod and the connecting rod assembly need to be a foldable structure.

[0061] In summary, the utility model provides a first pedal rod and a second pedal rod, and one end of the second pedal rod is rotatably connected to one end of the first pedal rod. The two pedal rods can be unfolded to carry people, and can be folded relative to each other when not in use to achieve the folding of the pedal rods. The existing limiting structure is replaced by a rotation limiting rod. The design is reasonable, the structure is simpler, the cost is further reduced, the assembly is simple, and the production efficiency is effectively improved.

[0062] 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-carrying structure of a passenger-carrying foldable electric trailer, characterized in that: include: A folding bicycle body, wherein support rods are respectively provided on both sides of the front end and the rear end of the folding bicycle body, and the two support rods at at least one end are rotatably connected to a folding pedal rod assembly, and the folding pedal rod assembly is arched from the middle and folded in half, and the folding pedal rod assembly is rotatably connected to a control mechanism at one end away from the support rod, and a first wheel is rotatably provided below the control mechanism, and the first wheel is also transmission-connected to the control mechanism, and a second wheel is provided at the bottom of the folding bicycle body, and the first wheel and the second wheel are spaced apart. The folding bicycle body is also provided with a controller and a battery for controlling the operation of the first wheel and / or the second wheel, and when the folding pedal rod assembly is arched from the middle and folded in half, the control mechanism is pulled toward the direction of the folding bicycle body.

2. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 1, characterized in that: A bracket connecting seat is fixedly provided at the bottom end of each support rod connected to the folding pedal rod assembly, and one end of the folding pedal rod assembly away from the direction control mechanism is rotatably connected to the bracket connecting seat.

3. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 1, characterized in that: The folding pedal rod assembly includes: a first pedal rod, a limiting pull rod, a second pedal rod, and a rotation limiting rod; one end of the first pedal rod is rotationally connected to the direction control mechanism, and the other end is rotationally connected to the limiting pull rod; the end of the limiting pull rod away from the first pedal rod is rotationally connected to the corresponding support rod; one end of the second pedal rod is rotationally connected to the bottom end of the support rod, and the other end is rotationally connected to the middle part of the first pedal rod; one end of the rotation limiting rod is rotationally connected to the end of the second pedal rod away from the support rod, and the other end is rotationally connected to the direction control mechanism.

4. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 3, characterized in that: Also includes: The lock hook is in the shape of a "7", and the corner of the lock hook is rotatably connected to the first pedal, one end of the lock hook is provided with a hook holding portion, and the second pedal and the lock hook are provided with an unfolding lock column corresponding to the lock hook, and the hook holding portion is adapted to the unfolding lock column, and the end of the lock hook provided with the hook holding portion is also provided with a slot, and the slot and the hook holding portion are spaced apart, and a card column is provided at a predetermined position on the support rod, and the slot is adapted to the card column, and the other end of the lock hook is provided with a dial handle, and the end of the lock hook provided with the dial handle is connected to a tension spring, and the tension spring is provided on the first pedal.

5. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 4, characterized in that: A synchronization rod is connected between the two folding pedal rod assemblies.

6. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 1, characterized in that: The direction control mechanism includes: a steering rod assembly, a connecting rod, and a link assembly; two first wheels are provided, the two first wheels are respectively located below the two ends of the connecting rod and are rotatably connected to the connecting rod, a horizontally extending wheel swing arm is provided on the side of the two first wheels away from the folding body, the steering rod assembly is passed through the middle of the connecting rod, the link assembly is connected to the bottom of the steering rod assembly, the two ends of the link assembly are respectively rotatably connected to the corresponding wheel swing arms, the steering rod assembly controls the direction of the first wheel through the link assembly, and the two ends of the connecting rod are respectively rotatably connected to the corresponding folding pedal rod assembly.

7. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 6, characterized in that: The two ends of the connecting rod facing the folding vehicle body are respectively provided with connecting ears, and the end of the folding pedal rod assembly away from the support rod is rotatably connected to the connecting ears.

8. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 6, characterized in that: The connecting rod assembly includes: a transmission rod, a direction connecting rod is movably connected to the middle of the transmission rod, one end of the direction connecting rod away from the transmission rod is fixedly connected to the bottom end of the direction rod assembly, and the two ends of the transmission rod are respectively rotatably connected to the corresponding wheel swing arm.

9. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 6, characterized in that: The direction rod assembly includes: an outer rod, an inner rod, and a turning rod; the turning rod is inserted into the middle part of the connecting rod, the top of the turning rod is rotatably connected to the outer rod, the inner rod is slidably arranged in the outer rod, the top of the inner rod is connected to a direction handle, and a limit assembly is provided in the end of the outer rod connected to the turning rod, and the limit assembly is used to limit the rotation of the outer rod relative to the turning rod.

10. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 9, characterized in that: The direction handle is ring-shaped, and folding grooves are respectively provided on both sides of the direction handle. A grip rod is rotatably connected to the same end of the two folding grooves, and one of the grip rods is rotatably arranged. A handle limit pin is also provided at the end of the grip rod connected to the folding groove, which is used to limit the grip rod when the grip rod is stored in the folding groove or when the grip rod is horizontal relative to the direction handle. The direction handle is also provided with a plurality of control buttons and a display device, and the control buttons and the display device are respectively electrically connected to the controller.

11. The foldable passenger-carrying structure of the passenger-carrying foldable electric trailer according to claim 10, characterized in that: A telescopic latch is provided inside the inner rod, a plurality of telescopic holes matched with the telescopic latch are provided on the outer rod, and a telescopic button for controlling the extension and retraction of the telescopic holes is also provided on the bottom inner wall of the direction handle.

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