Folding support structure and vehicle

Abstract

The utility model discloses a folding support structure and a vehicle. The folding support structure comprises a vehicle frame, a rotating assembly and a locking assembly. The frame comprises a front arm and a rear arm, the front arm is rotatably connected with the rear arm, and the frame has an unfolded state and a folded state; the rotating assembly comprises a sliding piece and a limiting pin, the sliding piece is slidably connected to the rear arm, the limiting pin is fixedly arranged on the front arm, when the sliding piece abuts against the limiting pin, the rear arm is fixed relative to the front arm to be in an unfolded state, and when the sliding piece is separated from the limiting pin, the rear arm rotates relative to the front arm to be in a folded state; the locking assembly is connected with the frame and used for locking the front arm and the rear arm when the frame is in a folded state. The vehicle frame can be switched between the unfolded state and the folded state, so that the occupied space is smaller when the vehicle is parked, and the vehicle is convenient to carry and store.

Description

TECHNICAL FIELD

[0001] The utility model relates to a traffic tool field especially relates to a folding support structure and vehicle. BACKGROUND

[0002] With the development of science and technology and the improvement of people's life quality, the holding amount of small traffic tools in the market is also increasing day by day, compared with traditional large traffic tools such as household cars, small traffic tools such as trolleys and bicycles are usually not parked in the garage but carried to the indoor by the user. Although considering its use scene, these small traffic tools are also improved as light as possible in design, but in the actual storage scene, small traffic tools still occupy a large space, causing space waste and inconvenience. SUMMARY

[0003] One purpose of the utility model is to provide a folding support structure and vehicle, which aims to solve the technical problem that small traffic tools such as trolleys or bicycles occupy a large space when stored indoors, causing space waste and inconvenience.

[0004] To achieve the above purpose, a scheme provided by the utility model is: a folding support structure, the folding support structure includes a frame and a rotating assembly, a locking assembly, the frame includes a front arm and a rear arm, the front arm is rotatably connected with the rear arm, the frame has an unfolded state and a folded state, the rotating assembly includes a sliding sheet and a limiting pin, the sliding sheet is slidably connected to the rear arm, the limiting pin is fixedly arranged on the front arm, when the sliding sheet abuts against the limiting pin, the rear arm is fixed relative to the front arm to be in the unfolded state, when the sliding sheet is separated from the limiting pin, the rear arm rotates relative to the front arm to the folded state, the locking assembly is connected with the frame, and the locking assembly is used for locking the front arm and the rear arm when the frame is in the folded state.

[0005] Optionally, the front arm is provided with a sliding groove, a slot wall of the sliding groove is provided with a gap, the rear arm is inserted into the sliding groove, the limiting pin is fixedly arranged on the front arm close to the gap, and the gap is used for allowing the rear arm to rotate out when the unfolded state and the folded state are switched; when the frame is in the unfolded state and the sliding sheet is in the first position, the front arm and the rear arm are partially abutted to limit the rear arm from rotating in the first direction, and the sliding sheet and the limiting pin are abutted to limit the rear arm from rotating in the second direction.

[0006] Optionally, the sliding sheet is provided with a clamping groove, an opening direction of the clamping groove and a rotating direction of the rear arm are not coincident, and the clamping groove is used for clamping the limiting pin.

[0007] Optionally, the rotating assembly further includes a first rotating pin, the first rotating pin is fixedly connected with the rear arm, the front arm is rotatably connected with the rear arm through the first rotating pin, the sliding sheet is provided with a guide groove, the first rotating pin is inserted into the guide groove, and the guide groove extends along the sliding direction of the sliding sheet.

[0008] Optionally, the rotating assembly further comprises a spring, the sliding piece penetrates the spring, one end of the spring abuts against the sliding piece, and the other end of the spring abuts against the first rotating pin.

[0009] Optionally, the sliding piece comprises a piece body and a lock tongue, the piece body is provided with a guide groove, the piece body penetrates the spring, and the lock tongue is arranged at the end of the piece body that is located away from the first rotating pin.

[0010] Optionally, the sliding piece comprises a piece body and a lock tongue, the piece body is provided with a guide groove, the piece body penetrates the spring, and the lock tongue is arranged at the end of the piece body that is located away from the first rotating pin.

[0011] Optionally, the sliding piece comprises a piece body and a lock tongue, the piece body is provided with a guide groove, the piece body penetrates the spring, and the lock tongue is arranged at the end of the piece body that is located away from the first rotating pin.

[0012] Optionally, the locking assembly comprises a folding hook and a hook pin, the hook pin is protruded from the front arm, one end of the folding hook is rotationally connected with the rear arm, and the other end is used for hooking the hook pin in the folded state to limit the rotation of the rear arm.

[0013] In order to achieve the above-mentioned purpose, a kind of vehicle is provided in one scheme of the utility model, the vehicle includes the folding support structure of any one of the above and wheel, wheel is rotatably connected with frame.

[0014] Optionally, the vehicle comprises parallel assembly and two groups of folding support structures, the two groups of folding support structures are arranged side by side and are connected by parallel assembly, and parallel assembly is used to change the spacing between the two groups of folding support structures.

[0015] Optionally, the parallel assembly comprises a first connecting rod, a second connecting rod, a second rotating pin and a locking piece, the first connecting rod and the second connecting rod are cross-rotationally connected by the second rotating pin, the first connecting rod is rotationally connected with the two groups of folding support structures, the opposite ends of the second connecting rod are respectively rotationally connected with the two groups of folding support structures, and the locking piece is connected with the folding support structure and at least one of the first connecting rod and the second connecting rod.

[0016] Optionally, the locking piece comprises a locking hook and a fixed pin, the locking hook is rotationally connected with the frame, the fixed pin is connected with at least one of the first connecting rod and the second connecting rod, when the spacing between the two groups of folding support structures is adjusted to a preset value, the locking hook is arranged on the fixed pin to limit the change of the spacing between the two groups of folding support structures.

[0017] The utility model has the advantages that:

[0018] The front arm and the rear arm of the frame are rotationally connected, the rotating assembly comprises a limiting pin fixedly connected with the front arm and a sliding piece slidingly connected with the rear arm, when the sliding piece abuts against the limiting pin, the rear arm is fixed relative to the front arm to be in the unfolded state, and when the sliding piece is separated from the fiber pin, the rear arm is rotated relative to the front arm to the folded state.

[0019] The advantage of this arrangement is that the frame has an unfolded state and a folded state. When the vehicle is in normal use, which includes all possible travel states such as pushing, riding or sliding, the frame is in the unfolded state, the slide abuts against the limit pin, limiting the rotation of the rear arm relative to the front arm, and the vehicle usage experience in the unfolded state is no different from existing vehicles in the field; and when the vehicle is finished using and needs to be carried indoors for storage, the slide separates from the limit pin, causing the rear arm to rotate relative to the front arm, and the frame is in the folded state, so that the vehicle occupies a smaller space when stored, reducing space waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is an overall structural diagram of a vehicle provided by an embodiment of the utility model, with the frame in an unfolded state;

[0022] Figure 2 It is a cross-sectional schematic diagram of a vehicle provided by an embodiment of the present utility model with the frame in an unfolded state;

[0023] Figure 3 yes Figure 2 A partial enlarged view of area A in FIG;

[0024] Figure 4 This is an overall structural diagram of a vehicle provided by an embodiment of the utility model when the frame is in a folded state;

[0025] Figure 5 It is a cross-sectional schematic diagram of a vehicle provided by an embodiment of the utility model with the frame in a folded state;

[0026] Figure 6 yes Figure 5 A local enlarged view of area B in FIG;

[0027] Figure 7 This is an overall structural diagram of the vehicle provided by an embodiment of the utility model when the vehicle frame is in an unfolded state and the distance between the two sets of folding bracket structures is at the maximum;

[0028] Figure 8 This is an overall structural diagram of the vehicle provided by an embodiment of the utility model from another perspective when the vehicle frame is in an unfolded state and the distance between the two sets of folding bracket structures is at the maximum;

[0029] Figure 9 yesFigure 7 is a local enlarged view of the C region in FIG.

[0030] Figure 10 is a whole structure diagram of the vehicle when the frame is in the folded state and the distance between the two sets of folding support structures is the smallest, provided by the embodiment of the utility model;

[0031] Figure 11 is a whole structure diagram of the vehicle from another perspective when the frame is in the folded state and the distance between the two sets of folding support structures is the smallest, provided by the embodiment of the utility model.

[0032] Explanation of reference numerals: 10, folding support structure; 11, frame; 111, forearm; 1111, sliding groove; 11111, notch; 112, rear arm; 12, rotating assembly; 121, sliding sheet; 1211, clamping groove; 1212, guide groove; 1213, sheet body; 1214, lock tongue; 1215, push rod; 12151, buffer groove; 122, limiting pin; 123, first rotating pin; 124, spring; 13, locking assembly; 131, folding hook; 132, hook pin; 20, wheel; 30, parallel assembly; 31, first connecting rod; 311, first main rod; 312, first auxiliary rod; 32, second connecting rod; 321, second main rod; 322, second auxiliary rod; 33, second rotating pin; 34, locking piece; 341, third rotating pin; 342, locking hook; 343, coil spring; 344, fixing pin; 3441, folding fixing pin; 3442, unfolding fixing buckle. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Please refer to Figures 1 to 3 , Figure 1 is a whole structure diagram of the vehicle when the frame 11 is in the unfolded state, provided by the embodiment of the utility model; Figure 2 is a cross-sectional schematic view of the vehicle when the frame 11 is in the unfolded state, provided by the embodiment of the utility model; Figure 3 is Figure 2 a local enlarged view of the A region in FIG.

[0035] The utility model embodiment provides a kind of folding support structure 10, the folding support structure 10 includes frame 11 and rotating component 12, locking component 13;Frame 11 includes forearm 111 and rear arm 112, forearm 111 is rotatably connected with rear arm 112, frame 11 has unfolded state and folding state;Rotating component 12 includes slide 121 and limit pin 122, slide 121 is slidably connected in rear arm 112, limit pin 122 is fixedly arranged in forearm 111, when slide 121 abuts against limit pin 122, rear arm 112 is fixed relative to forearm 111 to be in unfolded state, when slide 121 is separated from limit pin 122, rear arm 112 rotates relative to forearm 111 to folding state;Locking component 13 is connected with frame 11, and locking component 13 is used to lock forearm 111 and rear arm 112 when frame 11 is in folding state.

[0036] Specifically, the utility model embodiment provides an alternative implementation, please refer to the view angle direction in figure, when rear arm 112 is relative to forearm 111 at first angle, frame 11 is in unfolded state, under the action of frame 11 dead weight and load, rear arm 112 exists relative to forearm 111 counterclockwise rotation tendency, but, because slide 121 is abutted with limit pin 122, rear arm 112 cannot counterclockwise rotate, and thus maintain in unfolded state to realize the normal function of frame 11.

[0037] Please see Figures 4 to 6 Shown, Figure 4 It is the overall structural drawing of vehicle in the folding state of frame 11 provided by the utility model embodiment; Figure 5 It is the cross-sectional schematic view of vehicle in the folding state of frame 11 provided by the utility model embodiment; Figure 6 It is Figure 5 The local enlarged view of B area in it.

[0038] When frame 11 needs to switch from unfolded state to folding state, slide 121 is slid right and rear arm 112 is counterclockwise rotated to second angle relative to forearm 111, locking component 13 locks the included angle of forearm 111 and rear arm 112, so that frame 11 keeps in folding state, and it is convenient to store.

[0039] The above-mentioned "clockwise", "counterclockwise", "right" are the orientations of the specific structure provided by the embodiment in the specific view of the drawings in the specification, and do not represent the actual operation direction of the structure. In addition, the functions of the embodiment can also be realized by other structures. For example, the sliding sheet 121 of the embodiment abuts against the limiting pin 122 at the end away from the rear arm 112. In other embodiments, the limiting pin 122 can also be located on the side of the sliding sheet 121 close to the rear arm 112. In this way, when the sliding sheet 121 slides away from the rear arm 112, the sliding sheet 121 is separated from the limiting pin 122, and the frame 11 can be switched from the unfolded state to the folded state.

[0040] The advantage of such design is that when the small vehicle is in use, the abutment of the limiting pin 122 and the sliding sheet 121 makes the frame 11 remain in the unfolded state, which enables the frame 11 to complete its design function, that is, to maintain a stable form to transfer the load and dead weight to the ground. When the small vehicle is in a non-use state, the frame 11 in the folded state occupies a smaller space relative to the frame 11 in the unfolded state, which is more practical for the use requirement of carrying the small vehicle to an indoor parking place. It should be noted that there is no volume loss when the frame 11 is switched from the unfolded state to the folded state. The "smaller space" described herein should be understood as: the more tightly stacked frame 11 in the folded state only needs a smaller cuboid box to be accommodated. From the actual use experience, only a smaller space needs to be reserved for the frame 11 in the folded state to complete the storage.

[0041] Please refer to Figure 3 and Figure 6 In an embodiment of the present application, the front arm 111 is provided with a sliding groove 1111, and the rear arm 112 is inserted into the sliding groove 1111. The groove wall of the sliding groove 1111 is provided with a gap 11111 for allowing the rear arm 112 to rotate out when switching between the unfolded state and the folded state. The limiting pin 122 is fixedly arranged on the front arm 111 close to the gap 11111.

[0042] Specifically, the sliding groove 1111 is a stretched body with a U-shaped cross section, and the U-shaped opening is part of the gap 11111. Of course, the sliding groove 1111 can also be a non-stretched body, and the cross section can also be any shape that can form the gap 11111. The rotation axis of the front arm 111 and the rear arm 112 is located at the end of the front arm 111 close to the rear arm 112. In order for the rear arm 112 to smoothly rotate out of the sliding groove 1111, the gap 11111 extends to the upper right of the front arm 111 as shown in the figure, or the front arm 111 protrudes to the right and is rotatably connected to the sheet body 1213 of the rear arm 112, or the rear arm 112 is provided with a matching part embedded in the front arm 111 and can be rotated out. The figure only shows one of the embodiments.

[0043] When the frame 11 is in the unfolded state and the sliding sheet 121 is in the first position, i.e. the illustrated position, the front arm 111 and the rear arm 112 are partially abutted, specifically, the inner wall of the sliding groove 1111 and the upper surface of the part of the rear arm 112 located on the left side of the rotation shaft are abutted, the rear arm 112 is limited and cannot rotate clockwise, and the sliding sheet 121 is abutted with the limiting pin 122 to limit the rear arm 112 from rotating counterclockwise. The additional sliding groove 1111 makes the rear arm 112 unable to rotate clockwise relative to the front arm 111 even considering the disturbance of the environment when the frame 11 is in the unfolded state, and the positional relationship between the front arm 111 and the rear arm 112 is locked, so that the structure is more stable.

[0044] In an embodiment of the utility model, the sliding sheet 121 is provided with a clamping groove 1211. Specifically, the sliding sheet 121 comprises a sheet body 1213, the sheet body 1213 is provided with a clamping groove 1211 for clamping the limiting pin 122, the clamping groove 1211 is arranged at the area where the sheet body 1213 and the limiting pin 122 are abutted, and the opening direction of the clamping groove 1211 and the rotating direction of the rear arm 112 are not coincident,

[0045] When the frame 11 is in the unfolded state, in order to limit the clockwise rotation of the rear arm 112, the sliding sheet 121 needs to be pushed to the left side in the drawing, so that the sliding sheet 121 is abutted with the limiting pin 122, and the clamping groove 1211 makes the sliding sheet 121 unable to be pushed to the left side after being abutted with the limiting pin 122, thereby avoiding the risk that the sliding sheet 121 is pushed out of the rear arm 112 from the left side due to misoperation, and playing a role of foolproof structure.

[0046] Further, in order to stably clamp the limiting pin 122 in the clamping groove 1211, the maximum width of the sheet body 1213 is greater than the gap of the limiting pin 122 above the drawing, and the width of the area where the sheet body 1213 is provided with the clamping groove 1211 is less than the gap of the limiting pin 122 above the drawing. In this way, when the limiting pin 122 is abutted with the clamping groove 1211, even considering the influence of the rotation of the front arm 111 and the rear arm 112, the remaining part of the sheet body 1213 cannot continue to move to the left.

[0047] In an embodiment of the utility model, the rotating assembly 12 further comprises a first rotating pin 123, the first rotating pin 123 is fixedly connected with the rear arm 112, the front arm 111 is rotatably connected with the rear arm 112 through the first rotating pin 123, the sliding sheet 121 is provided with a guide groove 1212, the first rotating pin 123 is inserted into the guide groove 1212, and the guide groove 1212 extends along the sliding direction of the sliding sheet 121. Apparently, the first rotating pin 123 can also be fixedly connected with the front arm 111, and the rear arm 112 is rotatably connected with the front arm 111 through the first rotating pin 123.

[0048] In the embodiment, the slide 121 is not only in sliding connection with the rear arm 112, but also in sliding connection with the first rotating pin 123. The plurality of slidingly matched contacts make the sliding of the slide 121 more stable.

[0049] Further, the guide groove 1212 is a closed groove. When the slide 121 slides to the extreme position at both ends, the first rotating pin 123 abuts against the groove wall at both ends. The guide groove 1212 in the embodiment can be used as an anti-fumble structure. When the first rotating pin is installed in the vehicle frame 11 and the first rotating pin is clamped in the guide groove 1212, the sliding of the slide 121 in both directions is limited, thereby avoiding the risk that the slide 121 slides out of the rear arm 112.

[0050] The rotating assembly 12 further comprises a spring 124. The slide 121 penetrates the spring 124. One end of the spring 124 abuts against the slide 121, and the other end of the spring 124 abuts against the first rotating pin 123.

[0051] Further, the rotating assembly 12 further comprises a spring 124. The slide 121 penetrates the spring 124. One end of the spring 124 abuts against the slide 121, and the other end of the spring 124 abuts against the first rotating pin 123. Alternatively, a flange is arranged on the surface of the rear arm 112 close to the slide 121. One end of the spring 124 abuts against the slide 121, and the other end of the spring 124 abuts against the flange. The slide 121 provides a guide effect for the spring 124. Correspondingly, the force of the spring 124 acting on the slide 121 is also along the sliding direction of the slide 121, thereby reducing the friction between the slide 121 and the rear arm 112 in sliding cooperation.

[0052] The spring 124 is configured as a compression spring to exert its effect. Those skilled in the art can transform it into an application mode other than a compression spring without creative labor. A feasible implementation manner is that, in the illustrated perspective, the right end of the spring 124 is fixedly connected with the slide 121, and the left end of the spring 124 is fixedly connected with the rear arm 112. When the slide 121 abuts against the limiting pin 122, the spring 124 is subjected to a tensile stress.

[0053] For some embodiments lacking a limiting structure, in order to prevent the spring 124 from sliding off the slide 121, an optional improvement scheme is that the slide 121 comprises a slide body 1213 and a locking tongue 1214. The slide body 1213 is provided with the guide groove 1212. The slide body 1213 penetrates the spring 124. The locking tongue 1214 is arranged at the end of the slide body 1213 located at the first rotating pin 123. The spring 124 further abuts against the locking tongue 1214.

[0054] When the slide 121 is far enough away from the first rotating pin 123 so that the spring 124 is separated from the first rotating pin 123, the end of the spring 124 close to the first rotating pin 123 abuts against the lock tongue 1214, so that the spring 124 is fixed by the slide 121 itself even if it loses the limit of the first rotating pin 123, and will not slip off the slide 121.

[0055] Further, the slide 121 comprises a slide body 1213 and a lever 1215, the slide body 1213 is provided with a guide groove 1212, the slide body 1213 is provided with the spring 124, the lever 1215 is sleeved at the end of the slide body 1213 away from the first rotating pin 123, and the lever 1215 extends out of the frame 11, and one end of the spring 124 abuts against the lever 1215. It should be noted that the frame 11 should be provided with a groove for the movement of the lever 1215, so that the lever 1215 will not interfere with the frame 11 during the adjustment of the slide 121.

[0056] The setting of the lever 1215 makes the adjustment of the slide 121 more convenient, and the reset effect of the spring 124 on the slide 121, when it is needed to switch the frame 11 from the unfolded state to the folded state, the operator only needs to hold the front arm 111 and pull the lever 1215 with one hand, and rotates the rear arm 112 with the other hand to realize the state switching of the frame 11; similarly, when it is needed to switch reversely, only the lever 1215 needs to be pulled when the slide 121 is close to the limit pin 122, and after the frame 11 is switched to the unfolded state and the slide 121 passes the limit pin 122, the lever 1215 is released, the slide 121 abuts against the limit pin 122 under the action of the spring 124, and the frame 11 is locked in the unfolded state.

[0057] Optionally, the lever 1215 is provided with a buffer groove 12151 around the slide body 1213.

[0058] In actual assembly and use process, if the slide 121 and the rear arm 112 are in transition fit or interference fit state, the sliding of the slide 121 in the rear arm 112 will be resisted by a large force, and considering the plastic deformation such as creep of the material, it even can cause the slide 121 and the rear arm 112 to be locked with each other and cannot slide; and if the slide 121 and the rear arm 112 are in clearance fit, the sliding of the slide 121 will exist the shaking condition, so that the structure of the frame 11 is unstable and affects the use experience. The setting of the buffer groove 12151 makes the slide 121 can be closely fitted with the rear arm 112 to avoid the shaking of the frame 11, and can provide the accommodation effect when the slide 121 slides relative to the rear arm 112 to reduce the friction between the slide 121 and the rear arm 112.

[0059] Optionally, the locking assembly 13 includes a vehicle receiving hook 131 and a hook pin 132, the hook pin 132 is protruding from the front arm 111, one end of the vehicle receiving hook 131 is rotatably connected to the rear arm 112, and the other end is used to hook the hook pin 132 when in the folded state to limit the rotation of the rear arm 112. Obviously, the retracting hook 131 can also be connected to the rear arm 112 in other ways. For example, the retracting hook 131 is a spring plate fixedly connected to the rear arm 112. When the rear arm 112 rotates so that one end of the rear arm 112 is away from the front arm 111 and approaches the front arm 111, the retracting hook 131 first contacts the hook pin 132 and deforms. Then, as the rear arm 112 rotates further, the retracting hook 131 passes over the hook pin 132 and returns to its original shape, so that the hook pin 132 is hooked by the retracting hook 131; or the retracting hook 131 is an elastic rope, one end of the retracting hook 131 is fixed to the rear arm 112, and the other end is connected to the hook pin 132. When the vehicle frame 11 is in the unfolded state, the retracting hook 131 is in the stretched state. When the slide 121 is separated from the limit pin 122, the retracting hook 131 returns to its original length and drives the rotation of the rear arm 112, so that the vehicle frame 11 is switched to the folded state.

[0060] When the frame 11 is in the deployed state, the contact area between the slide 121 and the stop pin 122 bears the weight of the folding support structure 10 as well as a portion of the load. Consequently, significant friction exists between the slide 121 and the stop pin 122, making it less likely for the frame 11 to fail in the deployed state. When the frame 11 is in the stowed state, the locking assembly 13 engages to keep the frame 11 relatively stable in the stowed state, preventing it from accidentally deploying indoors and causing trouble for the user.

[0061] See also Figures 7 to 9 , Figure 7 This is an overall structural diagram of the vehicle provided by the embodiment of the present utility model when the vehicle frame 11 is in an unfolded state and the distance between the two sets of folding support structures 10 is at the maximum; Figure 8 This is an overall structural diagram of the vehicle provided by the embodiment of the utility model from another perspective when the vehicle frame 11 is in an unfolded state and the distance between the two sets of folding support structures 10 is at the maximum; Figure 9 yes Figure 7 In one embodiment of the present invention, a vehicle includes any one of the above-mentioned folding support structures 10 and wheels 20 , wherein the wheels 20 are rotatably connected to the vehicle frame 11 .

[0062] The vehicle shown in the accompanying drawings is a trolley, but this does not limit the scope of protection of this embodiment. In addition to trolleys, any small vehicle that requires folding can be adapted to the technical solution of this embodiment. When in use, the frame 11 is in the unfolded state, and the vehicle functions just like existing non-foldable vehicles in the field. When stored, the frame 11 can be folded, making the vehicle occupy a smaller space and reducing the space required for storage.

[0063] The vehicle includes a parallel assembly 30 and two groups of folding support structures 10 . The two groups of folding support structures 10 are arranged side by side and connected by the parallel assembly 30 . The parallel assembly 30 is used to change the distance between the two groups of folding support structures 10 .

[0064] As can be imagined, in order to facilitate smoother approach between the two sets of folding support structures 10, the wheels 20 of this embodiment, in addition to being able to roll relative to the ground, can also be provided with an additional rotation axis, allowing the wheels 20 to rotate about an axis perpendicular to the ground, thereby arbitrarily changing their rolling direction. Furthermore, rotation about the axis perpendicular to the ground also provides space for the rear arms 112 to rotate, allowing the front wheels of the vehicle to be positioned further back, making the vehicle structure more compact.

[0065] Please also refer to Figure 10 and Figure 11 , Figure 10 This is an overall structural diagram of the vehicle provided by the embodiment of the present utility model when the vehicle frame 11 is in a folded state and the distance between the two sets of folding support structures 10 is the smallest;

[0066] Figure 11 This is a diagram of the overall structure of the vehicle provided by the embodiment of the present invention from another perspective when the vehicle frame 11 is in a folded state and the distance between the two sets of folding support structures 10 is minimal. It should be noted that for the sake of clarity, some structures not related to this embodiment are omitted in the figure.

[0067] The vehicle's length is designated as the direction of travel, the height is designated as the direction perpendicular to the ground, and the width is designated as the direction perpendicular to these two directions. As the vehicle frame 11 changes from an unfolded state to a folded state, the deformation of the folding bracket assembly reduces the vehicle's length. The parallel assembly 30 adjusts the vehicle's width by varying the spacing between the two folding bracket structures 10, further reducing the space occupied by the vehicle when it is stored.

[0068] Optionally, the parallel assembly 30 comprises a first connecting rod 31, a second connecting rod 32, a second rotating pin 33 and a locking member 34, the first connecting rod 31 and the second connecting rod 32 are cross-rotatingly connected through the second rotating pin 33, the first connecting rod 31 is rotatably connected with the two sets of folding support structures 10, the opposite ends of the second connecting rod 32 are rotatably connected with the two sets of folding support structures 10 respectively, the locking member 34 is connected with the folding support structure 10 and at least one of the first connecting rod 31 and the second connecting rod 32.

[0069] In the above embodiment, the first connecting rod 31 and the second connecting rod 32 are cross-rotatingly connected through the second rotating pin 33, and the first connecting rod 31 and the second connecting rod 32 are respectively rotatably connected with the two sets of folding support structures 10, when the parallel assembly 30 adjusts the distance between the two sets of folding support structures 10, there are two rotating connection points for each set of folding support structures 10, which makes the two sets of folding support structures 10 closer and separate more smoothly.

[0070] Specifically, the first connecting rod 31 comprises a first main rod 311 and a first auxiliary rod 312 which are rotatably connected, wherein one end of the first main rod 311 away from the first auxiliary rod 312 is rotatably connected with one set of folding support structures 10, and one end of the first auxiliary rod 312 away from the first main rod 311 is rotatably connected with the other set of folding support structures 10; the second connecting rod 32 comprises a second main rod 321 and a second auxiliary rod 322 which are rotatably connected, wherein one end of the second main rod 321 away from the second auxiliary rod 322 is rotatably connected with one set of folding support structures 10, and one end of the second auxiliary rod 322 away from the second main rod 321 is rotatably connected with the other set of folding support structures 10. The first main rod 311 and the second auxiliary rod 322 are connected with the same set of folding support structures 10, and the second main rod 321 and the first auxiliary rod 312 are connected with the other set of folding support structures 10.

[0071] The parallel assembly 30 in the embodiment is connected with the front arm 111 of the frame 11 only, and thus the rotation axes of the first connecting rod 31 and the second connecting rod 32 connected with the frame 11 are parallel to the axial direction of the second rotation pin 33. If the parallel assembly 30 is connected with the front arm 111 and the rear arm 112 simultaneously, the influence of the rotation of the rear arm 112 relative to the front arm 111 should be considered, and corresponding adjustment should be made so that the parallel assembly 30 can normally play its role of adjusting the distance between the two sets of folding support structures 10. An alternative embodiment is that the first main rod 311 and the second main rod 321 are connected with a rear arm 112 respectively, and the first auxiliary rod 312 and the second auxiliary rod 322 are connected with the rear arm 112 respectively through newly added rotation structures, so that the rotation axes of the first main rod 311 and the second main rod 321 connected with the rear arm 112 can rotate along the rotation axes respectively which are at an angle to the axial direction of the second rotation pin 33. An alternative direction of the rotation axis is a horizontal line perpendicular to the axial direction of the second rotation pin 33.

[0072] The parallel assembly 30 above adjusts the distance between the two sets of folding support structures 10 only through rotation of the structures, which is simple in structure, convenient in production and not easy to be damaged.

[0073] Further, the locking member 34 includes a locking hook 342 and a fixing pin 344, the locking hook 342 is connected with the frame 11 rotatably, and the fixing pin is connected with at least one of the first connecting rod 31 and the second connecting rod 32. When the distance between the two sets of folding support structures 10 is adjusted to the preset value, the locking hook 342 is hung on the fixing pin 344 to limit the change of the distance between the two sets of folding support structures 10.

[0074] When the distance between the two sets of folding support structures 10 is adjusted to the preset value, due to the elasticity of the material and the disturbance of the environment, it is difficult for the distance between the two sets of folding support structures 10 to remain constant at the preset value, and the structure is in an unstable state. The locking hook 342 is rotatably connected with the frame 11 at one end and hung on the fixing pin 344 on the first connecting rod 31 or the second connecting rod 32 at the other end, so that the movement of the parallel assembly 30 is limited, and the distance between the two sets of folding support structures 10 remains at the preset value.

[0075] Specifically, the locking member 34 comprises a third rotating pin 341, a locking hook 342, a coil spring 343 and a fixing pin 344, the locking hook 342 is rotatably connected with the frame 11 through the third rotating pin 341, the coil spring 343 is sleeved on the third rotating pin 341, two ends of the coil spring 343 are connected with the frame body and the locking hook 342 respectively, the fixing pin 344 comprises at least one of an unfolded fixing pin and a folded fixing pin 3441, and the unfolded fixing pin and the folded fixing pin 3441 are fixedly arranged at least one of the first connecting rod 31 or the second connecting rod 32.

[0076] When the two groups of folding support structures 10 are separated to a preset distance, the coil spring 343 drives the locking hook 342 to hang the unfolded fixing pin, so that the two groups of folding support structures 10 are kept separated; when the two groups of folding support structures 10 are close to each other, the coil spring 343 drives the locking hook 342 to hang the folded fixing pin 3441, so that the two groups of folding support structures 10 cannot be separated. It can be imagined that the unfolded fixing pin in the embodiment can be other structures capable of cooperating with the locking hook 342, such as an unfolded fixing buckle 3442 and an unfolded fixing hole, and the folded fixing pin 3441 is the same, which will not be described here.

[0077] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0078] It should also be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element.

[0079] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0080] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A folding support structure, characterized in that: include: A frame, comprising a front arm and a rear arm, wherein the front arm is rotatably connected to the rear arm, and the frame has an unfolded state and a folded state; a rotating assembly comprising a slide and a limit pin, wherein the slide is slidably connected to the rear arm, and the limit pin is fixed to the front arm, and when the slide abuts against the limit pin, the rear arm is fixed relative to the front arm to be in the expanded state, and when the slide is separated from the limit pin, the rear arm rotates relative to the front arm to the folded state; A locking assembly is connected to the frame, and is used to lock the front arm and the rear arm when the frame is in a folded state.

2. The folding support structure according to claim 1, characterized in that: The front arm is provided with a sliding groove, a groove wall of the sliding groove is provided with a notch, the rear arm is inserted into the sliding groove, the limit pin is fixed on the front arm near the notch, and the notch is used to allow the rear arm to rotate out when switching between the unfolded state and the folded state; When the frame is in the expanded state and the slide is in the first position, the front arm partially abuts against the rear arm to limit the rear arm from rotating in the first direction, and the slide abuts against the limit pin to limit the rear arm from rotating in the second direction.

3. The folding support structure according to claim 2, characterized in that: The slide is provided with a slot, the opening direction of the slot does not coincide with the rotation direction of the rear arm, and the slot is used to clamp the limit pin.

4. The folding support structure according to claim 1, characterized in that: The rotating assembly also includes a first rotating pin, which is fixedly connected to the rear arm. The forearm is rotatably connected to the rear arm through the first rotating pin. The slide is provided with a guide groove, and the first rotating pin is inserted into the guide groove. The guide groove extends along the sliding direction of the slide.

5. The folding support structure according to claim 4, characterized in that: The rotating assembly further includes a spring, the sliding plate passes through the spring, one end of the spring abuts against the sliding plate, and the other end of the spring abuts against the first rotating pin.

6. The folding support structure according to claim 5, characterized in that: The slide includes a sheet body and a lock tongue. The sheet body is provided with the guide groove. The sheet body is penetrated by the spring. The lock tongue is arranged at the end of the sheet body located at the first rotating pin. The spring further abuts against the lock tongue.

7. The folding support structure according to claim 5, characterized in that: The sliding plate includes a plate body and a shift rod, the plate body is provided with the guide groove, the plate body is penetrated by the spring, the shift rod is sleeved on one end of the plate body away from the first rotating pin, and the shift rod extends to the outside of the frame, and one end of the spring is in contact with the shift rod.

8. The folding support structure according to claim 7, characterized in that: The shifting rod is provided with a buffer groove around the sheet body.

9. The folding support structure according to claim 1, characterized in that: The locking assembly includes a vehicle receiving hook and a hook pin. The hook pin is protruding from the front arm. One end of the vehicle receiving hook is rotatably connected to the rear arm, and the other end is used to hook the hook pin in the folded state to limit the rotation of the rear arm.

10. A vehicle, characterized in that: include: The folding support structure according to any one of claims 1 to 9; as well as A wheel is rotatably connected to the frame.

11. The vehicle according to claim 10, characterized in that The vehicle includes a parallel assembly and two groups of folding support structures. The two groups of folding support structures are arranged side by side and connected by the parallel assembly. The parallel assembly is used to change the distance between the two groups of folding support structures.

12. The vehicle according to claim 11, characterized in that The parallel assembly includes a first connecting rod, a second connecting rod, a second rotating pin and a locking piece. The first connecting rod and the second connecting rod are cross-rotatingly connected by the second rotating pin. The first connecting rod is rotationally connected to the two groups of the folding support structures. The opposite ends of the second connecting rod are respectively rotationally connected to the two groups of the folding support structures. The locking piece is connected to the folding support structure and is connected to at least one of the first connecting rod and the second connecting rod.

13. The vehicle according to claim 12, characterized in that The locking member includes a locking hook and a fixing pin, the locking hook is rotationally connected to the frame, and the fixing pin is connected to at least one of the first connecting rod and the second connecting rod. When the distance between the two groups of the folding support structures is adjusted to a preset value, the locking hook is hung on the fixing pin to limit the change in the distance between the two groups of the folding support structures.

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