CN219927721U

CN219927721U - Trailer convenient to control turns to

Info

Publication number: CN219927721U
Application number: CN202321226675.9U
Authority: CN
Inventors: 苏鹏; 马聪泉; 赵国松
Original assignee: Shaoxing Shangyu Rixing Hardware Products Co Ltd
Current assignee: Shaoxing Shangyu Rixing Hardware Products Co Ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-31
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a trailer convenient for controlling steering, comprising: the car hopper surrounds and defines a bearing space; a plurality of wheels mounted at the bottom of the hopper, at least one of which is a steering wheel; the movable wheel frame is rotatably arranged at the bottom of the car hopper around a first axis, and the steering wheel is arranged on the movable wheel frame through a wheel shaft; the transmission mechanism is arranged at the bottom of the car hopper and is provided with a first part and a second part, wherein the first part is arranged at the bottom of the car hopper in a rotating way around a second axis, and the second part is in transmission connection with the movable wheel frame; and the handle is positioned on the horizontal side of the car hopper, and the bottom of the handle is connected with the first component. Compared with the prior art, the trailer provided by the utility model is convenient for directly pulling the handlebar to drive the trailer to turn.

Description

Trailer convenient to control turns to

Technical Field

The utility model relates to the field of trailers, in particular to a trailer convenient to control steering.

Background

With the development of socioeconomic performance, people can go to field play, photograph, or camp with their families during leisure, but these activities often require carrying a large number of personal items. In camping, trailers are often used to hold items.

The trailer generally comprises a hopper and wheels arranged at the bottom of the hopper, and a handle which is convenient for pushing and pulling the hopper to move is arranged on one side of the hopper. The existing trailer adopts universal wheels at the bottom for steering, but the universal wheels are passively towed, so that the active steering is inconvenient, and the convenience of the trailer is affected.

Disclosure of Invention

The utility model provides a trailer which is simple in structure and convenient to control steering.

The utility model provides a trailer convenient for controlling steering, comprising:

the car hopper surrounds and defines a bearing space;

a plurality of wheels mounted at the bottom of the hopper, at least one of which is a steering wheel;

the movable wheel frame is rotatably arranged at the bottom of the car hopper around a first axis, and the steering wheel is arranged on the movable wheel frame through a wheel shaft;

the transmission mechanism is arranged at the bottom of the car hopper and is provided with a first part and a second part, wherein the first part is arranged at the bottom of the car hopper in a rotating way around a second axis, and the second part is in transmission connection with the movable wheel frame;

and the handle is positioned on the horizontal side of the car hopper, and the bottom of the handle is connected with the first component.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the bottom wall below of car hopper is fixed with the backup pad in an abutting manner, the movable wheel carrier includes:

the steering wheel is arranged at the bottom of the frame body through a wheel shaft;

and one end of the steering shaft is mounted on the supporting plate, and the other end of the steering shaft is mounted on the top of the frame body.

Optionally, the bottom of the handle is rotatably mounted to the first member about a third axis, the third axis being substantially perpendicular to the first axis;

the handle has a first, upright position and a second, relatively inclined position relative to the first member, and the trailer further includes a reset member acting on the handle towards the first position.

Optionally, the plurality of wheels include two groups and are respectively arranged at two opposite sides of the hopper, one group is the steering wheel, and all steering wheels synchronously steer through the transmission mechanism;

the trailer has opposite front and rear sides, wherein the handle is on the front side, the first member extends from a handle bottom to the front side, and the second member and the connection of the second member to the first member are all housed in the hopper bottom.

Optionally, the second axis is substantially parallel to the first axis.

Optionally, the second component and the first component are rotatably mounted about a fourth axis, the fourth axis being substantially parallel to the first axis, and the bottom end of the handle and the fourth axis are on opposite sides of the second axis.

Optionally, the second component is a connecting rod, the middle part of the connecting rod is rotatably installed on the first component around the fourth axis, and two ends of the connecting rod are respectively and rotatably connected with the corresponding movable wheel frames.

Optionally, the frame body is an inverted U-shaped structure as a whole, the steering shaft is connected to a closed part at the top of the inverted U-shaped structure, and the steering wheel is positioned outside the inverted U-shaped structure;

the closed part at the top of the inverted U-shaped structure is provided with an outer convex lug, and two ends of the connecting rod are rotationally connected to the corresponding lug.

Optionally, a positioning piece is mounted on the first component, and the second component or the movable wheel frame is blocked by the positioning piece when moving to a limit position.

Optionally, the other of the two sets of wheels is a directional wheel and is mounted at the bottom of the hopper through a fixed wheel carrier.

Optionally, the end of the first part far away from the vehicle body is provided with two support arms arranged side by side, and the bottom end of the handle is arranged between the two support arms through a pivot.

Optionally, the hopper has opposite longitudinal and width directions, and the two sets of wheels are arranged on both sides in the longitudinal direction.

Optionally, the handle includes a rod body and a holding piece (omitted in the figure) connected to one end of the rod body, and the length of the hopper is not less than the length of the rod body.

Optionally, a gasket is fixed on the top surface of the first component, and the gasket is abutted against the hopper.

Optionally, the hopper is a rigid structure.

The trailer convenient to control steering can control the steering angle of the wheels through the handle, change the advancing direction of the trailer and enable the trailer to be more agile and flexible in steering and turning around.

Drawings

FIG. 1 is a schematic perspective view of a trailer in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic illustration of the hopper of FIG. 1 shown separated;

FIG. 3 is a bottom view of the trailer handle in a pre-steering position in accordance with an embodiment of the present utility model;

FIG. 4 is a bottom view of the handle in the post-steering position according to the embodiment of the present utility model;

FIG. 5 is a schematic diagram of a portion of a transmission mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the handle according to the embodiment of the present utility model when the handle is tilted relatively;

FIG. 7 is a schematic view of the connection of the handle to the first member according to an embodiment of the present utility model;

fig. 8 is a further enlarged view of the transmission structure of fig. 5.

Reference numerals in the drawings are described as follows:

1. a hopper; 2. a wheel; 21. a steering wheel; 22. a directional wheel; 3. a movable wheel frame; 31. a frame body; 311. ear pieces; 32. a steering shaft; 4. a wheel axle; 5. a transmission mechanism; 51. a first component; 511. a positioning piece; 512. a support arm; 513. a gasket; 52. a second component; 6. a handle; 7. a support plate; 8. a fixed wheel frame; 9. a pivot; 102. a reset member;

A. a first axis; B. a second axis; C. a third axis; D. and a fourth axis.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the present disclosure, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implicitly indicating the number, order of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present disclosure, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.

Referring to fig. 1 to 4, in one embodiment of the present utility model, a trailer for controlling steering is provided, which includes a hopper 1 enclosing a carrying space for containing articles, wherein the hopper may be foldable or non-foldable, and when in a folded structure, the hopper may include a foldable framework and a flexible pocket mounted on the framework, so that the hopper can be easily folded and stored when not in use, and the space occupied by the hopper is effectively reduced. For example, the hopper 1 can be of an integrated rigid structure, so that the whole hopper is firmer, and the bearing capacity of the hopper is enhanced.

A plurality of wheels 2 are mounted at the bottom of the hopper 1, and at least one is a steering wheel 21, so as to change the traveling direction. In order to facilitate the installation of the steering wheel, as shown in fig. 5, a movable wheel frame 3 may be provided, the movable wheel frame 3 is rotatably installed at the bottom of the hopper 1 around the first axis a, the steering wheel 21 is installed on the movable wheel frame 3 through a wheel shaft 4, and when the steering is required, the movable wheel frame drives the steering wheel to change direction.

The handles 6 are located on the horizontal side of the hopper 1 (the relative positions between the handles and the hopper and the angles of the handles are not strictly limited relative to the top side and the bottom side), and the movable wheel frame is driven by the handles to walk by the trailer in the embodiment.

In order to realize the linkage of the handle and the movable wheel frame, a transmission mechanism 5 is arranged, the transmission mechanism 5 is arranged at the bottom of the car hopper 1, and comprises a plurality of parts along the transmission relation, wherein a first part 51 is relatively positioned at the power input side and is connected with the bottom of the handle 6, and the first part 51 can be processed by adopting a plate material and is provided with a bending and reinforcing rib structure. The second part 52 is on the output side, wherein the first part 51 is rotatably mounted on the bottom of the hopper 1 about the second axis B, and the second part 52 is in driving connection with the movable wheel carrier 3.

With reference to fig. 3 and 4, by changing the position of the handle, the first part 51 is driven to rotate along the second axis B (as shown in fig. 2), so that the second part 52 is offset, and the movable wheel frame 3 is further driven to rotate around the first axis a (as shown in fig. 2), and the steering wheel 21 is driven to change the angle, so that the trailer is quickly steered by operating the handle 6.

The plurality of wheels 2 comprises two sets and are respectively arranged on two opposite sides of the hopper 1, for example, one set is arranged on one side relatively close to the handle 6 and the other set is arranged on one side relatively far away from the handle 6, so that uniform supporting force is provided for the hopper, the stability of the hopper is improved, and the risk of rollover or shaking is reduced.

Preferably, one of the plurality of wheels is a steering wheel 21, as can be seen in fig. 1, all steering wheels are on the same side (the side close to the handle) so as to simplify the transmission mechanism, and all steering wheels 21 are synchronously steered through the transmission mechanism 5, so that the trailer can be more suitable for different environments and steering conditions, is more flexible and convenient to control, and is more smooth to operate.

The second part 52 is intended to be connected to the movable wheel carrier 3 for transmitting the turning direction of the handle 6 to the steering wheel 21. The shape of the second part 52 is not strictly limited, but at least the necessary strength is maintained to ensure the transmission effect, in another embodiment the trailer has opposite front and rear sides, wherein the handle 6 is on the front side, the first part 51 extends from the bottom of the handle to the front side, and both the second part 52 and the connection part of the second part 52 and the first part 51 are hidden at the bottom of the hopper 1, thereby minimizing the exposure of the transmission mechanism and avoiding safety hazards during use.

In another embodiment, the second axis B is substantially parallel (angular deviation less than 5 °, preferably parallel) to the first axis a, and the steering angle of the trailer can be accurately perceived.

Referring to fig. 2 and 5, the movable wheel frame 3 includes a frame body 31, the frame body 31 having opposite top and bottom portions, wherein the bottom portion of the frame body 31 is mounted with a steering wheel 21 through a wheel shaft 4.

The movable wheel frame 3 further comprises a steering shaft 32 defining a first axis A, the steering shaft is arranged at the top of the frame body 31, the supporting plate 7 is fixedly attached to the lower portion of the bottom wall of the car hopper 1, one end of the steering shaft 32 is arranged at the top of the frame body 31, and the other end of the steering shaft 32 is arranged on the supporting plate 7, so that the assembly is facilitated, and the strength of the car hopper is ensured.

In another embodiment, as shown in fig. 2, 6 and 7, the bottom of the handle 6 is rotatably mounted to the first member 51 about a third axis C which is substantially perpendicular (offset by less than 5 ° and preferably perpendicular) to the first axis a, and the user can adjust the handle 6 from a first upright position (dashed line in fig. 6) to a second, relatively inclined position (solid line) to adapt the handle 6 to the force.

Further, the trailer further comprises a return member 102 acting on the handle 6 towards the first position, the return member 102 being adapted to automatically return the handle 6 from the tilted second position to the upright first position when the handle 6 is not under tension, thereby reducing the number of handling steps during use of the trailer. The return member 102 may be any element having a resilient function, such as a spring, tension spring, torsion spring, etc. Preferably, the restoring member 102 is a coil spring. The handle can be automatically restored to the first position after being released.

The second member 52 is rotatably mounted to the first member 51 about a fourth axis D which is substantially parallel (offset less than 5 degrees, preferably parallel) to the first axis a, the bottom end of the handle 6 being on either side of the second axis B from the fourth axis D, thereby improving the flexibility of relative movement of the first and second members and enabling the first member to rotate about the second axis more effort.

Preferably, the second component is a connecting rod, the middle part of the connecting rod is rotatably installed with the first component 51 around the fourth axis D, two ends of the connecting rod are respectively rotatably connected with the corresponding movable wheel frame 3, the structure of the connecting rod is relatively simple, the design is convenient, and the mechanical structure is convenient to simplify.

As shown in fig. 5 and 8, the frame 31 is preferably an inverted U-shaped structure as a whole to provide stronger bearing capacity, the steering shaft 32 is connected to the closed portion at the top of the inverted U-shaped structure, so as to further improve the stability of the connection between the steering shaft and the frame, and make the connection between the steering shaft and the frame stronger, the steering wheel 21 is located outside the inverted U-shaped structure, the closed portion at the top of the inverted U-shaped structure is provided with an outer protruding lug 311, and two ends of the connecting rod are rotatably connected to the corresponding lugs 311.

In another embodiment, as shown in fig. 5, a positioning member 511 is mounted on the first member 51, and the movement of the second member 52 or the movable wheel frame 3 to the limit position is blocked by the positioning member 511. The positioning member 511 can control the steering limit of the first member 51.

In another embodiment, the other of the two sets of wheels 2 is a directional wheel 22, so as to better maintain the straight direction, ensure that the trailer is not easy to run away, and the directional wheel 22 is mounted at the bottom of the hopper 1 through a fixed wheel frame 8.

In another embodiment, as shown in fig. 7, the end of the first part 51 remote from the vehicle body is provided with two support arms 512 arranged side by side, the bottom end of the handle 6 being mounted between the two support arms 512 by means of the pivot 9.

The hopper 1 has opposite longitudinal and width directions, and two sets of wheels 2 are arranged on both sides in the longitudinal direction to keep the stress of the hopper 1 uniform.

The handle 6 comprises a rod body and a holding piece (omitted in the figure) connected to one end of the rod body, so as to facilitate the holding of the handle 6, and the length of the car hopper 1 is not less than the length of the rod body, so that the combination stability of the car hopper and the handle is enhanced

The top surface of the first component 51 is fixed with a gasket 513 (as shown in fig. 8) that is abutted against the support plate 7, so as to reduce friction between the first component 51 and the support plate 7 during rotation, and prevent abnormal sound and vibration generated during steering of the trailer.

In the using process of the trailer, the steering force can be simultaneously transmitted to the two steering wheels only by rotating the direction of the handle, so that the directions of the two steering wheels are simultaneously adjusted, and the running direction of the trailer is rapidly adjusted.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. Trailer convenient to control turns to, characterized by includes:

the car hopper surrounds and defines a bearing space;

2. The trailer of claim 1 wherein a support plate is secured against and below the bottom wall of the hopper, the movable wheel frame comprising:

3. The trailer of claim 1 wherein the bottom of the handle is rotatably mounted to the first member about a third axis, the third axis being substantially perpendicular to the first axis;

4. The trailer of claim 1, wherein the plurality of wheels comprises two sets and are disposed on opposite sides of the hopper, respectively, wherein one set is the steering wheel and all steering wheels are synchronously steered by the transmission mechanism;

5. A trailer as claimed in claim 2, wherein the second and first members are rotatably mounted about a fourth axis, the fourth axis being substantially parallel to the first axis, the bottom end of the handle and the fourth axis being on opposite sides of the second axis.

6. The trailer of claim 5, wherein the second member is a link, a middle portion of the link is rotatably mounted to the first member about the fourth axis, and both ends of the link are rotatably connected to corresponding movable wheel frames, respectively.

7. The trailer of claim 6 wherein the frame is an inverted U-shaped structure as a whole, the steering shaft being connected to a closed portion of the top of the inverted U-shaped structure, the steering wheel being external to the inverted U-shaped structure;

8. A trailer as claimed in claim 1, wherein the first member has a locating member mounted thereon, the second member or the movable wheel frame being prevented from moving to an extreme position by the locating member.

9. The trailer of claim 4 wherein the other of the two sets of wheels is a directional wheel and is mounted to the bottom of the hopper by a fixed wheel carrier.

10. A trailer according to claim 1, wherein the end of the first member remote from the body is provided with two support arms arranged side by side, the bottom end of the handle being pivotally mounted between the two support arms.