CN216611267U

CN216611267U - Trailer

Info

Publication number: CN216611267U
Application number: CN202123441976.7U
Authority: CN
Inventors: 段兴隆
Original assignee: Shanghai Baotung Tech Co ltd
Current assignee: Shanghai Baotung Tech Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-27
Anticipated expiration: 2031-12-31

Abstract

The application provides a trailer, including automobile body, unblock spare and locking piece. The unlocking piece and the locking piece are arranged on the vehicle body. The automobile body includes support frame and encloses frame subassembly. The enclosure frame assembly comprises a first enclosure frame and a second enclosure frame. The first frame and the second frame are respectively connected with the support frame in a rotating mode. The unlocking piece is in transmission connection with the locking piece to drive the locking piece to be locked or unlocked with the first surrounding frame and/or the second surrounding frame. When the locking piece is in locking fit with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame is limited to the unfolding position or the folding position; when the locking piece is unlocked with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame can be switched between the unfolding position and the folding position. So set up, through mutually supporting of unblock spare and locking piece to the convenience encloses the frame and/or the second to the first expansion or folding that encloses the frame, and folding back automobile body volume reduces, is convenient for accomodate and carry.

Description

Trailer

Technical Field

The application relates to the field of transportation tools, in particular to a trailer.

Background

Trailers are vehicles for transporting various items and goods. In the related art, the trailer is bulky, and has the problem that the operation is difficult to fold or unfold and unfold, and is inconvenient to store and carry. Therefore, how to promote the convenience of the folding, unfolding and unlocking operations of the trailer becomes a hot issue of current field research.

SUMMERY OF THE UTILITY MODEL

The application provides a trailer that aims at convenient storage and carry.

The application provides a trailer, which comprises a trailer body, an unlocking piece and a locking piece, wherein the unlocking piece and the locking piece are arranged on the trailer body; the vehicle body includes:

a support frame;

the enclosure frame assembly comprises a first enclosure frame and a second enclosure frame, and the first enclosure frame and the second enclosure frame are respectively in rotating connection with the support frame;

the unlocking piece is in transmission connection with the locking piece so as to drive the locking piece to be locked or unlocked with the first surrounding frame and/or the second surrounding frame; when the locking piece is in locking fit with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame is limited to a unfolding position or a folding position; when the locking piece is unlocked with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame can be switched between the unfolding position and the folding position.

Optionally, the vehicle body includes a rotating assembly, the rotating assembly includes a rotating shaft assembly, the first enclosing frame is connected with one group of the rotating shaft assembly, the second enclosing frame is connected with the other group of the rotating shaft assembly, so that the first enclosing frame and the second enclosing frame turn over around the rotating shaft assembly relative to the support frame.

Optionally, the locking member is movably assembled to the vehicle body, and the locking member comprises a locking position and an unlocking position;

in the locking position, the locking piece is in locking fit with the surrounding frame assembly and/or the supporting frame; in the unlocked position, the locking member is unlocked from the enclosure frame assembly and/or the support bracket.

Optionally, the rotating assembly includes a rotating protrusion disposed on the rotating shaft assembly; the rotating lug comprises an abutting surface rotating around the rotating shaft assembly;

the vehicle body comprises a wheel assembly, the wheel assembly is movably arranged on the surrounding frame assembly, and the wheel assembly is abutted against the abutting surface so as to overturn relative to the surrounding frame assembly along with the pushing of the abutting surface.

Optionally, the wheel assembly includes a wheel holder and a wheel connected to the bottom of the wheel holder;

the enclosure frame assembly comprises a horizontal section connected with the rotating assembly and a vertical section extending upwards along the horizontal section;

the wheel fixing seat is movably sleeved on the horizontal section and is in butt fit with the butt joint surface; the wheel fixing seat is provided with a sliding chute, and the horizontal section is provided with a guide structure accommodated in the sliding chute; the abutting surface pushes the wheel fixing seat to move relative to the horizontal section in the direction back to the rotating lug, so that the guide structure is in sliding fit with the sliding groove, and the wheel assembly is driven to turn towards the inside of the surrounding frame assembly by taking the horizontal section as an axis.

Optionally, the rotating assembly comprises a first rotating assembly and a second rotating assembly;

the first enclosure frame comprises a first armrest part, a first vertical section connected with the first armrest part and a first horizontal section connected with the first vertical section, and the first rotating assembly is connected with the free end of the first horizontal section; the second enclosure frame comprises a second armrest part, a second vertical section connected with the second armrest part and a second horizontal section connected with the second vertical section, and the second rotating assembly is connected with the free end of the second horizontal section; the length of the second horizontal segment is greater than the length of the first horizontal segment.

Optionally, the device further comprises a transmission assembly, wherein the transmission assembly comprises a transmission connecting piece and a transmission gear connected to the transmission connecting piece; the transmission connecting piece with the unlocking piece links to each other, the locking piece set up in drive gear.

Optionally, the first enclosure frame includes a first armrest portion and a first bent portion connected to the first armrest portion, and the first bent portion is connected to the support frame; the unlocking piece is arranged on the first armrest part;

and/or the second surrounding frame comprises a second armrest part and a second bent part connected with the second armrest part, and the second bent part is connected to the support frame; the second handrail portion is provided with the unlocking piece.

Optionally, the first enclosure frame includes a first armrest portion, a first vertical section connected to the first armrest portion, and a first horizontal section connected to the first vertical section; the second enclosure frame comprises a second armrest part, a second vertical section connected with the second armrest part and a second horizontal section connected with the second vertical section; the support frame is connected along length direction between first horizontal segment and the second horizontal segment, and with first enclose the frame with the second encloses the frame and encloses jointly and close and form accommodation space.

Optionally, the support frame includes two support rods arranged oppositely and a reinforcing rod connecting the two support rods.

The application provides a trailer, including automobile body, unblock spare and locking piece. The unlocking piece and the locking piece are arranged on the vehicle body. The automobile body includes support frame and encloses frame subassembly. The enclosure frame assembly comprises a first enclosure frame and a second enclosure frame. The first frame and the second frame of enclosing rotate with the support frame respectively and are connected. The unlocking piece is in transmission connection with the locking piece to drive the locking piece to be locked or unlocked with the first surrounding frame and/or the second surrounding frame. When the locking piece is in locking fit with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame is limited to the unfolding position or the folding position; when the locking piece is unlocked with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame can be switched between the unfolding position and the folding position. So set up, through mutually supporting of unblock spare and locking piece to the convenience encloses the frame and/or the second to the first expansion or folding that encloses the frame, and folding back automobile body volume reduces, is convenient for accomodate and carry.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic structural view of a trailer of the present application in an unfolded state;

FIG. 2 is a front view of the trailer of FIG. 1 in a deployed state;

FIG. 3 is a side view of the trailer shown in FIG. 1 in a deployed state;

FIG. 4 is a schematic structural view of the trailer of FIG. 1 in a collapsed state;

FIG. 5 is a side view of the trailer of FIG. 1 in a collapsed state;

FIG. 6 is a front view of the trailer of FIG. 1 in a collapsed state;

FIG. 7 is a side view of the trailer shown in FIG. 1 during folding;

FIG. 8 is an enlarged view of a portion A of the trailer shown in FIG. 1;

figure 9 is a front view of the trailer of figure 1 during folding.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides a trailer, including automobile body, unblock spare and locking piece. The unlocking piece and the locking piece are arranged on the vehicle body. The automobile body includes support frame and encloses frame subassembly. The enclosure frame assembly comprises a first enclosure frame and a second enclosure frame. The first frame and the second frame are respectively connected with the support frame in a rotating mode. The unlocking piece is in transmission connection with the locking piece to drive the locking piece to be locked or unlocked with the first surrounding frame and/or the second surrounding frame. When the locking piece is in locking fit with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame is limited to the unfolding position or the folding position; when the locking piece is unlocked with the first surrounding frame and/or the second surrounding frame, the first surrounding frame and/or the second surrounding frame can be switched between the unfolding position and the folding position. So set up, through mutually supporting of unblock spare and locking piece to the convenience encloses the frame to the first and/or the second encloses the expansion or folding of frame, and folding automobile body volume reduces, is convenient for accomodate.

Fig. 1 is a schematic structural view of a trailer 1 provided by the present application in a deployed state. Fig. 2 is a front view of the trailer 1 shown in fig. 1 in a deployed state. Fig. 3 is a side view of the trailer 1 shown in fig. 1 in a deployed state.

Referring to fig. 1-3, a trailer 1 includes a body 2, an unlocking member 3 and a locking member 4. The unlocking member 3 and the locking member 4 are provided to the vehicle body 2. The unlocking member 3 is used to unlock the locking member 4 from the vehicle body 2. The locking piece 4 is used for the automobile body 2 when unfolding the position or folding the position, locks the automobile body 2, avoids the automobile body 2 to take place to become flexible, influences the normal transportation or accomodate the effect of automobile body 2. In some embodiments, the unlocking piece 3 comprises an unlocking button, and the stop locking of the vehicle body 2 by the contact locking piece 4 can be realized by pressing the unlocking button. For example, the unlocking member 3 may be disposed at an armrest position of the vehicle body 2, and in the using process, the user holds the unlocking member 3 and the armrest by hand and applies pressure, so that the pressing operation of the unlocking member 3 can be realized.

The vehicle body 2 includes a support frame 5 and a surrounding frame assembly 6. The enclosure assembly 6 comprises a first enclosure 7 and a second enclosure 8. The first enclosing frame 7 and the second enclosing frame 8 are respectively connected with the support frame 5 in a rotating way. The first enclosing frame 7 and the second enclosing frame 8 are respectively connected to two ends of the support frame 5 in a rotating way. The support frame 5 is used for supporting an object above the support frame. The first enclosing frame 7 and the second enclosing frame 8 can enclose objects on the support frame 5 and can also be used as handles to facilitate pushing and pulling the vehicle body 2.

In some embodiments, the first enclosure 7 includes a first armrest portion 25, a first vertical section 26 connected to the first armrest portion 25, and a first horizontal section 27 connected to the first vertical section 26. The second enclosure frame 8 includes a second armrest portion 28, a second vertical section 29 connected to the second armrest portion 28, and a second horizontal section 30 connected to the second vertical section 29. The supporting frame 5 is connected between the first horizontal section 27 and the second horizontal section 30 along the length direction, and forms an accommodating space 36 with the first surrounding frame 7 and the second surrounding frame 8. In this embodiment, the first armrest portion 25 is located on the top of the first enclosure 7. The second armrest portion 28 is located at the top of the second enclosure frame 8. The user holds the first armrest portion 25 and/or the second armrest portion 28 to push or pull the vehicle body 2. The first horizontal section 27 of the first enclosing frame 7 and the second horizontal section 30 of the second enclosing frame 8 are respectively butted with two ends of the support frame 5, so that the length of the support frame 5 can be prolonged on the horizontal plane, and the support area for placing objects can be increased. And, the first vertical section 26 is vertically upward from the first horizontal section 27, and the second vertical section 29 is vertically upward from the second horizontal section 30, so as to enclose the front and rear ends of the support frame 5, so as to reduce the risk of falling objects.

In some embodiments, the support frame 5 includes two support rods 21 disposed opposite to each other and a reinforcing rod 22 connecting the two support rods 21. In this embodiment, two support rods 21 are disposed laterally and spaced apart. The reinforcing bar 22 is vertically connected between the two support bars 21. In this way, the two support rods 21 and the reinforcing rod 22 support the object together, so that the object can be placed more stably.

Continuing to refer to fig. 1, in some embodiments, body 2 includes a swivel assembly 9. The rotating assembly 9 comprises a rotating shaft assembly 10, the first surrounding frame 7 is connected with one group of rotating shaft assemblies 10, the second surrounding frame 8 is connected with the other group of rotating shaft assemblies 10, and the first surrounding frame 7 and/or the second surrounding frame 8 can turn relative to the support frame 5 around the rotating shaft assemblies 10.

Specifically, when the vehicle body 2 is folded, the first surrounding frame 7 and/or the second surrounding frame 8 are manually pushed towards the direction of the support frame 5, so that the first surrounding frame 7 can be turned over by taking one of the two sets of rotating shaft assemblies 10 as a center, and/or the second surrounding frame 8 can be turned over by taking the other set of rotating shaft assemblies 10 as a center until the first surrounding frame 7 and/or the second surrounding frame 8 are completely folded. When the vehicle body 2 is unfolded, the first surrounding frame 7 and/or the second surrounding frame 8 are manually pushed in the direction opposite to the support frame 5, and the first surrounding frame 7 can also be turned over by taking one of the two groups of rotating shaft assemblies 10 as the center, and/or the second surrounding frame 8 can be turned over by taking the other group of rotating shaft assemblies 10 as the center until the first surrounding frame 7 and/or the second surrounding frame 8 are completely unfolded.

In some embodiments, the rotating shaft assembly 10 can be rotated by pushing the first enclosing frame 7 and/or the second enclosing frame 8 by hand, so that the first enclosing frame 7 and/or the second enclosing frame 8 can be movably turned over, and then the first enclosing frame 7 and/or the second enclosing frame 8 can be folded or unfolded, the structure is simple, and the turning effect of the first enclosing frame 7 and/or the second enclosing frame 8 is good.

In other embodiments, the rotating shaft assembly 10 may be fixedly disposed on the supporting frame 5, and the first surrounding frame 7 and/or the second surrounding frame 8 are/is rotatably connected to the respective rotating shaft assembly 10, so that the first surrounding frame 7 and/or the second surrounding frame 8 can be turned over relative to the supporting frame 5 by driving the first surrounding frame 7 and/or the second surrounding frame 8. Or, one set of the rotating shaft assembly 10 may be fixedly disposed on the first surrounding frame 7, the other set of the rotating shaft assembly may be fixedly disposed on the second surrounding frame 8, and the supporting frame 5 is rotatably connected to the rotating shaft assembly 10, so that the first surrounding frame 7 and/or the second surrounding frame 8 can be rotated relative to the supporting frame 5 by driving the first surrounding frame 7, the second surrounding frame 8 or the rotating shaft assembly 10 to make the first surrounding frame 7 and/or the second surrounding frame 8.

In addition, if the foldable lengths of the first surrounding frame 7 and the second surrounding frame 8 are different, it is necessary to push the first surrounding frame 7 and the second surrounding frame 8 to turn over at intervals. Specifically, the first frame 7 that encloses is folded earlier than the second frame 8, and after setting for a period of time again, make the second enclose the frame 8 folding and the second encloses the frame 8 and is located the first top that encloses the frame 7 to avoid the first frame 7 that encloses and the second enclose frame 8 and simultaneously at the in-process mutual interference of upset, influence the whole folding effect of automobile body 2. If the foldable length of the first enclosing frame 7 and the second enclosing frame 8 is the same, after the first enclosing frame 7 and the second enclosing frame 8 are folded, the first enclosing frame 7 and the second enclosing frame 8 are oppositely arranged, so that the first enclosing frame 7 and the second enclosing frame 8 can be pushed to turn over without mutual interference, and the folding time of the vehicle body 2 can be saved.

In some embodiments, the first enclosure frame 7 includes a first connection end 37 connected to one end of the rotation shaft assembly 10 and a second connection end 38 connected to the other end of the rotation shaft assembly 10, and the wheel assembly 13 includes a first wheel 39 disposed at the first connection end 37 and the second connection end 38. The first connecting end 37 and the second connecting end 38 of the first enclosure frame 7 are arranged in parallel and at an interval, and are respectively connected to two ends of the rotating shaft assembly 10. Accordingly, a first wheel 39 is provided at each of the first and second connection ends 37, 38. Therefore, at least two first wheels 39 can be driven to overturn through the rotation of the group of rotating shaft assemblies 10, on one hand, the power for driving the first enclosure frame 7 to overturn can be balanced, and on the other hand, the material cost is also reduced.

Similarly, the second enclosure frame 8 having the same structure as the first enclosure frame 7 includes a third connection end 40 connected to one end of the rotation shaft assembly 10 and a fourth connection end 41 connected to the other end of the rotation shaft assembly 10, and the wheel assembly 13 includes a second wheel 42 provided at the third connection end 40 and the fourth connection end 41. Therefore, the at least two second wheels 42 are driven to turn over through the rotation of the group of rotating shaft assemblies 10, on one hand, the power for driving the second enclosure frame 8 to turn over can be balanced, and on the other hand, the material cost is also reduced.

In the above-described embodiment, each set of the rotary shaft assemblies 10 may include the connecting rod 43 and the rotary shafts 45 provided at both ends of the connecting rod 43. The first connecting end 37 and the second connecting end 38 of the first enclosure frame 7 are respectively connected with the rotating shafts 45 at two ends of the connecting rod 43 so as to be controlled to turn relative to the supporting frame 5. In this case, the two rotation shafts 45 at both ends of the connecting rod 43 may be rotated concentrically or non-concentrically.

The rotating shaft 45 may be fixedly connected to the connecting rod 43, or may be an integral structure with the connecting rod 43, and the first connecting end 37 and the second connecting end 38 can respectively rotate relative to the supporting frame 5 around the respective rotating shafts 45, so as to enable the first enclosure frame 7 to be turned relative to the supporting frame 5. Alternatively, the rotating shaft 45 may be fixedly connected to the first connecting end 37 and the second connecting end 38, and the connecting rod 43 is rotatably connected to the rotating shaft 45 at both ends, so that the first enclosure frame 7 can be turned over relative to the supporting frame 5.

Similarly, the third connecting end 40 and the fourth connecting end 41 of the second enclosure frame 8 are respectively connected with the rotating shafts 45 at two ends of the connecting rod 43 so as to be controlled to turn relative to the support frame 5. In this case, the two rotation shafts 45 at both ends of the connecting rod 43 may be rotated concentrically or non-concentrically.

The rotating shaft 45 may be fixedly connected to the connecting rod 43, or may be an integral structure with the connecting rod 43, and the third connecting end 40 and the fourth connecting end 41 can rotate around the respective rotating shafts 45 relative to the supporting frame 5, so as to turn the second enclosure frame 8 relative to the supporting frame 5. Alternatively, the rotating shaft 45 may be fixedly connected to the third connecting end 40 and the fourth connecting end 41, and the connecting rod 43 is rotatably connected to the rotating shafts 45 at both ends, so that the second enclosure frame 8 can be turned over relative to the supporting frame 5.

The first wheel 39 and the second wheel 42 are turned correspondingly with the rotation of the spindle assembly 10. The rotating shaft assembly 10 is indirectly connected with the first wheel 39 and the second wheel 42 in a rotating mode, so that the first wheel 39 and the second wheel 42 can be driven to overturn through rotation of the rotating shaft assembly 10, the structure is simple, and the driving overturning effect is good.

In some embodiments, first wheel 39 and second wheel 42 may be universal wheels. That is, the first wheel 39 and the second wheel 42 may rotate in any direction to facilitate transportation of the vehicle body 2.

Fig. 4 is a schematic structural view of the trailer 1 shown in fig. 1 in a folded state. Figure 5 is a side view of the trailer 1 shown in figure 1 in a folded state. Fig. 6 is a front view of the trailer 1 shown in fig. 1 in a folded state. As shown in fig. 1, 4-6, the unlocking member 3 is in transmission connection with the locking member 4 to drive the locking member 4 to lock or unlock the first surrounding frame 7 and/or the second surrounding frame 8. When the locking piece 4 is in locking fit with the first surrounding frame 7 and/or the second surrounding frame 8, the first surrounding frame 7 and/or the second surrounding frame 8 are limited to the unfolding position (shown in figure 1) or the folding position (shown in figure 4); when the locking member 4 is unlocked from the first surrounding frame 7 and/or the second surrounding frame 8, the first surrounding frame 7 and/or the second surrounding frame 8 can be switched between the unfolded position and the folded position. In this embodiment, the locking member 4 is disposed inside the vehicle body 2, movably connected to the first enclosure frame 7 and the second enclosure frame 8, and interlocked with the unlocking member 3. When the vehicle body 2 is in the unfolding state and locked, the unlocking piece 3 is pressed manually, so that the locking piece 4 is driven to unlock the first surrounding frame 7 and/or the second surrounding frame 8, and at the moment, the first surrounding frame 7 and/or the second surrounding frame 8 can rotate relative to the support frame 5. Further, the first enclosing frame 7 and/or the second enclosing frame 8 are manually turned towards the direction of the support frame 5 until the first enclosing frame 7 and/or the second enclosing frame 8 are completely folded, and the locking piece 4 locks the first enclosing frame 7 and/or the second enclosing frame 8 to prevent the loosening. When the vehicle body 2 needs to be unfolded, the unlocking piece 3 is pressed again to drive the locking piece 4 to unlock the first surrounding frame 7 and/or the second surrounding frame 8, and at the moment, the first surrounding frame 7 and/or the second surrounding frame 8 can rotate relative to the support frame 5. Further, the first surrounding frame 7 and/or the second surrounding frame 8 are manually turned in a direction opposite to the supporting frame 5 until the first surrounding frame 7 and/or the second surrounding frame 8 are completely unfolded, and the locking piece 4 locks the first surrounding frame 7 and/or the second surrounding frame 8 to prevent the influence on the normal transportation of the vehicle body 2. So set up, through the mutually supporting of unlocking piece 3 and locking piece 4 to the convenience encloses frame 7 and \ or the second to the first expansion or folding that encloses

frame

8, and 2 volume reductions of automobile body after folding, be convenient for accomodate and carry. In some embodiments, the folded vehicle body 2 is a cuboid (as shown in fig. 4), and the first enclosure frame 7 and the second enclosure frame 8 are in a folded structure, where the first enclosure frame 7 is located below the second enclosure frame 8 or the second enclosure frame 8 is located below the first enclosure frame 7. In this manner, the volume of the vehicle body 2 is reduced for storage.

In some embodiments, the lock 4 is movably assembled to the vehicle body 2, and the lock 4 includes a locked position and an unlocked position. In the locking position, the locking piece 4 is in locking fit with the surrounding frame assembly 6 and/or the supporting frame 5; in the unlocked position, the locking member 4 is unlocked from the enclosure frame assembly 6 and/or the support frame 5. The vehicle body 2 includes a cavity in which the lock 4 is disposed. The locking piece 4 is used for locking or unlocking the enclosing frame assembly 6 and the supporting frame 5. Specifically, when the automobile body 2 is in the unfolding state or the folding state, the locking piece 4 locks the enclosure frame assembly 6 and the support frame 5 to prevent the enclosure frame assembly 6 and the support frame 5 from loosening to influence the normal transportation of the automobile body 2 or the storage effect of the automobile body 2. When the vehicle body 2 is in the process of folding or unfolding, the locking piece 4 unlocks the surrounding frame assembly 6 and the support frame 5, and then pushes the surrounding frame assembly 6, so that the surrounding frame assembly 6 can be turned over through the rotation of the support frame 5, and the folding or unfolding of the surrounding frame assembly 6 is realized.

In some embodiments, the trailer 1 further comprises a drive assembly 31, the drive assembly 31 comprising a drive link 32 and a drive gear 33 connected to the drive link 32; the transmission connecting piece 32 is connected with the unlocking piece 3, and the locking piece 4 is arranged on the transmission gear 33. In this embodiment, the unlocking member 3 drives the locking member 4 to lock or unlock the enclosure frame assembly 6 through the transmission assembly 31. Specifically, when the locking member 4 is in the locking position, the unlocking member 3 is pressed, the unlocking member 3 pushes the transmission connecting member 32, the transmission connecting member 32 pushes the transmission gear 33 to rotate, and then the locking member 4 is loosened from the surrounding frame assembly 6 and/or the rotating shaft assembly 10 along with the rotation of the transmission gear 33, so that the locking member 4 is unlocked from the surrounding frame assembly 6 and/or the rotating shaft assembly 10, the rotating shaft assembly 10 can rotate, and the surrounding frame assembly 6 can turn over along with the rotation of the rotating shaft assembly 10. At the moment, when the locking piece 4 is in the unlocking position, if the locking piece 4 needs to be locked with the surrounding frame assembly 6 and/or the rotating shaft assembly 10, the unlocking piece 3 is pressed again, the unlocking piece 3 gives a pulling force to the transmission connecting piece 32, the transmission connecting piece 32 pulls the transmission gear 33 to rotate towards the direction opposite to the unlocking direction, and then the locking piece 4 can be driven to be locked with the surrounding frame assembly 6 and/or the rotating shaft assembly 10. In some embodiments, the locking member 4 comprises a latch. The enclosure frame assembly 6 and/or the rotating shaft assembly 10 comprise through holes. The locking piece 4 is locked with the surrounding frame assembly 6 and/or the rotating shaft assembly 10 in a mode that the lock catch is clamped in the through hole.

In some embodiments, the first surrounding frame 7 includes a first bent portion 34 connected to the first armrest portion 25, the first bent portion 34 is connected to the supporting frame 5; the first armrest portion 25 is provided with the unlocking piece 3. In this embodiment, the first armrest portion 25 is disposed perpendicular to the length direction of the supporting frame 5, and the end portion thereof is connected to the first bent portion 34. The first bent portion 34 is connected to one end of the support frame 5 through the rotating shaft assembly 10, and can be turned over above the support frame 5 through rotation of the rotating shaft assembly 10 to form a folded state, so that the volume of the vehicle body 2 can be reduced. The unlocking member 3 may be provided at the first armrest portion 25 to facilitate a close-up operation by a user. In some embodiments, the first bending portion 34 is an L-shaped structure, so that an end of the enclosure support frame 5 is effective, and the risk of dropping an object is reduced.

The second surrounding frame 8 comprises a second bent part 35 connected with the second armrest part 28, and the second bent part 35 is connected to the supporting frame 5; the second armrest portion 28 is provided with the unlocking piece 3. The second armrest portion 28 is disposed perpendicular to the longitudinal direction of the support frame 5, and the end portion thereof is connected to the second bent portion 35. The second bent portion 35 is connected to the other end of the support frame 5 through the pivot assembly 10, and can be turned over above the support frame 5 by the rotation of the pivot assembly 10 to form a folded state, so that the volume of the vehicle body 2 can be reduced. The unlocking member 3 may be provided at the second armrest portion 28 to facilitate a close-up operation by a user. In some embodiments, the second bending portion 35 is an L-shaped structure, and the other end of the enclosure support frame 5 is effective, so as to reduce the risk of dropping the object.

In some embodiments, the rotation assembly 9 includes a rotation boss 11 provided to the rotation shaft assembly 10; the rotation lug 11 comprises an abutment surface 12 rotating around the rotation shaft assembly 10; the vehicle body 2 includes a wheel assembly 13, the wheel assembly 13 is movably disposed on the surrounding frame assembly 6, and the wheel assembly 13 abuts against the abutting surface 12 so as to be turned over relative to the surrounding frame assembly 6 along with the pushing of the abutting surface 12. Wherein, the distance of the abutting surface 12 from the rotation center of the rotation shaft assembly 10 in different radial directions of the rotation shaft assembly 10 can be different to push the wheel assembly 13 to turn during the rotation of the rotation lug 11. In this embodiment, since the abutting surface 12 and the wheel assembly 13 abut against each other, the abutting surface 12 rotates to generate a corresponding pushing force according to the interaction of the forces, the wheel assembly 13 can be pushed to move in a direction away from the abutting surface 12, and can be turned relative to the surrounding frame assembly 6. Specifically, when the vehicle body 2 is folded, the unlocking piece 3 is pressed, so that the locking piece 4 is unlocked from the surrounding frame assembly 6 and/or the rotating shaft assembly 10, and the surrounding frame assembly 6 is further pushed, and the surrounding frame assembly 6 can turn towards the supporting frame 5 along with the rotation of the rotating shaft assembly 10. And, the rotation shaft assembly 10 rotates the rotation boss 11. The abutting surface 12 of the rotary lug 11 pushes the wheel assembly 13 to move back to the abutting surface 12, and meanwhile, the wheel assembly 13 is driven to turn towards the inside of the enclosure frame assembly 6 until the enclosure frame assembly 6 is completely folded. When the vehicle body 2 is unfolded, the enclosure frame assembly 6 is pulled by hand, and the enclosure frame assembly 6 can turn back to the direction of the support frame 5 along with the rotation of the rotating shaft assembly 10. And, the abutting surface 12 of the rotary lug 11 pushes the wheel assembly 13 to move in the direction opposite to the abutting surface 12, so that the pushing force of the abutting surface 12 on the wheel assembly 13 is gradually reduced. At this time, the wheel assembly 13 may be automatically turned back toward the inside of the surrounding frame assembly 6 due to the self-weight of the wheel assembly 13 until the surrounding frame assembly 6 is fully unfolded to the unfolded position and the wheel assembly 13 is also fully unfolded.

In some embodiments, the rotation lug 11 is in a cam structure. The abutment surface 12 is a side surface of the cam structure. The rotation lug 11 comprises a plurality of abutting surfaces 12, wherein the abutting surfaces 12 abutting against the wheel assembly 13 are in an inclined surface structure in the rotation process of the rotation lug 11, so that the rotation lug 11 rotates to drive the wheel assembly 13 to move more smoothly. The abutting surface 12 may be a surface formed by connecting a plane and/or a curved surface. In some embodiments, the junction of two adjacent abutment surfaces 12 is radiused. In some embodiments, the rotating assembly 9 includes, but is not limited to, a gear drive or a hinge drive. The wheel assembly 13 moves with the rotation of the gear transmission structure or the hinge transmission structure.

In some embodiments, wheel assembly 13 includes a wheel mount 14 and a wheel 15 attached to the bottom of wheel mount 14. When the vehicle body 2 is in an unfolded state, the wheel fixing seat 14 is transversely placed, and the wheel 15 is positioned at the bottom end of the wheel fixing seat 14; when the vehicle body 2 is in a folded state, the wheel fixing seat 14 is vertically placed, and the wheel 15 is located on the side portion of the wheel fixing seat 14. The enclosure frame assembly 6 includes a horizontal section 16 connected to the rotating assembly 9 and a vertical section 17 extending upwardly along the horizontal section 16. The wheel fixing seat 14 is movably sleeved on the horizontal section 16, and the wheel fixing seat 14 is in butt fit with the butt joint surface 12. The horizontal section 16 is closer to the rotating component 9 than the vertical section 17, and therefore the wheel fixing seat 14 sleeved on the horizontal section 16 is close to the rotating component 9, so that the requirement that the wheel fixing seat 14 can be abutted against the abutting surface 12 is met, and the wheel fixing seat 14 can be driven to overturn through the rotation of the abutting surface 12.

Figure 7 is a side view of the trailer 1 shown in figure 1 during folding. As shown in fig. 1 and 7, the wheel fixing seat 14 has a sliding slot 18, and the horizontal segment 16 has a guiding structure 19 accommodated in the sliding slot 18; the abutting surface 12 pushes the wheel fixing seat 14 to move relative to the horizontal section 16 along the direction away from the rotating lug 11, so that the guiding structure 19 is in sliding fit with the sliding groove 18, and the wheel assembly 13 is driven to turn towards the inside of the enclosure frame assembly 6 by taking the horizontal section 16 as an axis. When the vehicle body 2 is folded, the unlocking piece 3 is pressed, so that the locking piece 4 is unlocked from the surrounding frame assembly 6 and/or the rotating shaft assembly 10, the surrounding frame assembly 6 is further pushed, the rotating shaft assembly 10 rotates along with the pushing of the surrounding frame assembly 6, meanwhile, the rotating shaft assembly 10 drives the corresponding rotating lug 11 to rotate, the wheel fixing seat 14 moves along the rotating track of the rotating lug 11 in the direction opposite to the rotating lug 11, meanwhile, the guide structure 19 moves towards the rotating lug 11 relative to the sliding groove 18, the wheel fixing seat 14 is turned towards the inside of the surrounding frame assembly 6 by taking the horizontal section 16 as an axis, and then the wheel 15 is also turned towards the inside of the surrounding frame assembly 6 along with the wheel fixing seat 14. When the vehicle body 2 is unfolded, the enclosing frame assembly 6 is pulled by hand, the rotating shaft assembly 10 rotates along with the pulling of the enclosing frame assembly 6, meanwhile, the rotating shaft assembly 10 also drives the corresponding rotating lug 11 to rotate, so that the wheel fixing seat 14 moves towards the direction of the rotating lug 11 along the rotating track of the rotating lug 11, meanwhile, the guide structure 19 moves relative to the sliding groove 18 in the direction opposite to the rotating lug 11, so that the wheel fixing seat 14 is turned towards the outside of the enclosing frame assembly 6 by taking the horizontal section 16 as an axis, and further, the wheel 15 is turned towards the outside of the enclosing frame assembly 6 along with the wheel fixing seat 14. In addition, the sliding groove 18 is inclined, which is beneficial to the overturn of the wheel fixing seat 14. In some embodiments, the guide structure 19 comprises a guide post. In some embodiments, there is a gap between the guide structure 19 and the slide groove 18, so that the guide structure 19 slides smoothly within the slide groove 18.

Fig. 8 is an enlarged view of a partial region a of the trailer 1 shown in fig. 1. As shown in fig. 8, in some embodiments, the rotating shaft assembly 10 includes a fixing member 44 further sleeved on the connecting rod 43; the rotation boss 11 is provided between the fixing member 44 and the rotation shaft 45. In this embodiment, the two ends of the connecting rod 43 are respectively provided with the rotating shaft 45 and the fixing piece 44, and the rotating lug 11 is correspondingly and respectively arranged, and the rotating lug 11 is clamped between each rotating shaft 45 and the fixing piece 44 to limit the rotating lug 11, so as to prevent the rotating lug 11 from being displaced in the rotating process. In some embodiments, the fastener 44 comprises a tapered sleeve. In some embodiments, the first port of the sleeve abuts against the rotation protrusion 11, and the size of the first port matches with the planar size of the rotation protrusion 11, so that the limiting effect on the rotation protrusion 11 is good. The second port of the sleeve is sized to match the outer diameter of the connecting rod 43.

Figure 9 is a front view of the trailer 1 shown in figure 1 during folding. As shown in fig. 9, in some embodiments, rotating assembly 9 includes a first rotating assembly 23 and a second rotating assembly 24. The first enclosing frame 7 is correspondingly and rotatably connected with the first rotating assembly 23, and the first enclosing frame 7 is driven to turn over by the rotation of the first rotating assembly 23. The second enclosure frame 8 is correspondingly and rotatably connected with the second rotating assembly 24, and the second enclosure frame 8 is driven to turn over through the rotation of the second rotating assembly 24.

The first rotating assembly 23 is connected to the free end of the first horizontal segment 27. The second rotating assembly 24 is connected to the free end of the second horizontal segment 30; the length of the second horizontal segment 30 is greater than the length of the first horizontal segment 27. In this embodiment, the length of the second horizontal section 30 of the second surrounding frame 8 is set to be greater than the length of the first horizontal section 27 of the first surrounding frame 7. That is to say, the second encloses frame 8 and the first rotation point position of enclosing frame 7 different for after first enclosing frame 7 and second enclose frame 8 are folded, compare in setting up the second and enclose the same technical scheme in rotation point position of frame 8 and first enclosing frame 7, whole car size is littleer, is more convenient for store and carry. In some embodiments, the length of the first horizontal segment 27 of the first peripheral frame 7 may also be set to be greater than the length of the second horizontal segment 30 of the second peripheral frame 8.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. A trailer is characterized by comprising a trailer body, an unlocking piece and a locking piece, wherein the unlocking piece and the locking piece are arranged on the trailer body; the vehicle body includes:

a support frame;

2. The trailer of claim 1, wherein the body comprises a swivel assembly comprising a pivot assembly, the first enclosure frame being connected to one set of the pivot assembly, the second enclosure frame being connected to another set of the pivot assembly, such that the first enclosure frame and the second enclosure frame are tilted relative to the support frame about the pivot assembly.

3. A trailer in accordance with claim 2, wherein the lock is movably assembled to the body, the lock comprising a locked position and an unlocked position;

4. The trailer of claim 2, wherein the rotation assembly comprises a rotation protrusion disposed on the rotation shaft assembly; the rotating lug comprises an abutting surface rotating around the rotating shaft assembly;

5. A trailer in accordance with claim 4, wherein the wheel assembly comprises a wheel mount and a wheel attached to the bottom of the wheel mount;

6. A trailer in accordance with claim 2, wherein the swivel assembly comprises a first swivel assembly and a second swivel assembly;

7. The trailer of claim 1, further comprising a drive assembly comprising a drive link and a drive gear connected to the drive link; the transmission connecting piece with the unlocking piece links to each other, the locking piece set up in drive gear.

8. The trailer of claim 7, wherein the first enclosure frame comprises a first armrest portion and a first bent portion connected to the first armrest portion, the first bent portion being connected to the support frame; the unlocking piece is arranged on the first armrest part;

and/or the second surrounding frame comprises a second armrest part and a second bent part connected with the second armrest part, and the second bent part is connected to the support frame; the second handrail part is provided with the unlocking piece.

9. The trailer of claim 1, wherein the first enclosure frame comprises a first armrest portion, a first vertical section connected to the first armrest portion, a first horizontal section connected to the first vertical section; the second enclosure frame comprises a second armrest part, a second vertical section connected with the second armrest part and a second horizontal section connected with the second vertical section; the support frame is connected along length direction between first horizontal segment and the second horizontal segment, and with first enclose the frame with the second encloses the frame and encloses jointly and close and form accommodation space.

10. The trailer of claim 1, wherein the support frame comprises two support rods disposed opposite each other and a reinforcing rod connecting the two support rods.