Cart

Abstract

The utility model belongs to the technical field of children products, and discloses a cart. The cart comprises a frame, a push rod and a limiting structure, and the frame has an unfolded state and a folded state; the push rod is connected to one side of the frame; when the frame is switched between the unfolded state and the folded state, part of the structure of the frame moves in the axis direction of the push rod relative to the push rod. According to the cart, in the folding process of the cart frame, the push rod does not need to be detached from the cart frame, the steps of folding the cart are reduced, the push rod does not need to be detached from the cart frame, and therefore the probability that the push rod is lost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field especially, relate to a cart. BACKGROUND

[0002] The cart is a children's vehicle which can place articles and allow children to ride, and the cart is provided with wheels and can realize dragging forward.

[0003] In the prior art, the cart is usually equipped with a pull rod which is connected to the frame of the cart for being gripped by a user. In order to reduce the space occupied by the cart when it is not in use, the frame of the cart is often arranged to be foldable so as to facilitate storage and transportation. Moreover, the pull rod is detachably arranged on the frame, and when the frame needs to be folded, the pull rod is first detached from the frame, and then the frame is folded. After the folding of the frame is completed, the pull rod is placed together with the frame. It can be seen that the cart in the prior art has many steps when being folded, and the pull rod needs to be separated from the frame, which leads to the risk of loss of the pull rod. SUMMARY

[0004] The utility model aims at providing a cart to solve the problems of many folding steps and easy loss of the push rod in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The cart comprises:

[0007] The frame has an unfolded state and a folded state;

[0008] The push rod is connected to one side of the frame;

[0009] When the frame is converted between the unfolded state and the folded state, part of the structure of the frame moves relative to the push rod in the axial direction of the push rod.

[0010] In one of the embodiments, the cart further comprises a limiting structure which is arranged between the push rod and the frame, and when the frame is converted between the unfolded state and the folded state, the frame drives the limiting structure to move relative to the push rod in the axial direction of the push rod.

[0011] In one of the embodiments, the push rod has a first position close to the frame and a second position away from the frame, and when the push rod is located at the first position, the frame can be converted between the unfolded state and the folded state.

[0012] The stroller further comprises a limiting structure, which is arranged on the push rod or the frame, and when the limiting structure is connected with the frame or the push rod, the push rod is located at the first position; when the limiting structure is separated from the frame or the push rod is separated from the limiting structure, the push rod is located at the second position.

[0013] In one of the embodiments, the limiting structure has a containing space, the push rod is limited in the containing space, and when the frame is switched from the unfolded state to the folded state, the push rod is relatively movable with the containing space; and / or,

[0014] When the frame is switched between the unfolded state and the folded state, the frame drives the limiting structure to slide along the axis direction of the push rod; and / or,

[0015] When the frame is switched between the unfolded state and the folded state, the frame is relatively rotatable with the limiting structure; and / or,

[0016] The limiting structure comprises a first connecting part and a second connecting part connected with each other, the frame is relatively rotatable with the first connecting part, and the second connecting part is relatively slidable with the push rod.

[0017] In one of the embodiments, the limiting structure comprises a first fixing member and a second fixing member, at least one of the first fixing member and the second fixing member is movably connected with the surrounding frame of the frame, and has a closing state and a separating state, in the closing state, the first fixing member and the second fixing member surround to form a containing space, the push rod is limited in the containing space, and in the separating state, the push rod is separated from the limiting structure;

[0018] At least one of the first fixing member and the second fixing member movably connected with the part of the surrounding frame of the frame forms the first connecting part, and the part of the first fixing member and the second fixing member surrounding to form the containing space forms the second connecting part; or,

[0019] The limiting structure further comprises a base, the base is movably arranged on the surrounding frame of the frame, the first fixing member and the second fixing member are movably connected with the base, and have the closing state and the separating state relative to the base.

[0020] In one of the embodiments, the first connecting part is detachably connected with the frame, or the second connecting part is detachably connected with the push rod;

[0021] The second connecting part is provided with the containing space, the push rod is located in the containing space, and the containing space is a sliding groove.

[0022] The first connecting part is provided with a clamping part, which is detachably connected with the frame.

[0023] In one of the embodiments, in the unfolded state, the frame comprises:

[0024] A support structure, the push rod is pivotally connected to the support structure;

[0025] A surrounding frame connected to the support structure;

[0026] When the frame is converted from the unfolded state to the folded state, the surrounding frame moves along the axis direction of the push rod and approaches the support structure.

[0027] In one of the embodiments, the push rod has a first position where the push rod approaches the frame and a second position where the push rod is away from the frame, when the push rod is in the first position, the frame can be converted between the unfolded state and the folded state.

[0028] The stroller further comprises a limiting structure provided on the surrounding frame or the push rod, having a fixed state and a separated state, when the limiting structure is in the fixed state, the push rod is limited in the first position, when the frame is converted from the unfolded state to the folded state, the limiting structure slides along the axis direction of the push rod, when the limiting structure is in the separated state, the push rod is in the second position.

[0029] In one of the embodiments, when the frame is in the folded state, the extending direction of the surrounding frame is substantially parallel to the extending direction of the push rod.

[0030] The support structure comprises a front lower support and a rear lower support, the rear lower support is pivotally connected to the front lower support.

[0031] The surrounding frame comprises a front upper surrounding frame and / or a rear upper surrounding frame.

[0032] The frame further comprises a connecting structure provided between the support structure and the surrounding frame.

[0033] When the frame is converted from the unfolded state to the folded state, the rear lower support and the front lower support pivotally approach each other around the pivot, the front upper surrounding frame moves to approach the front lower support, and / or the rear upper surrounding frame moves to approach the rear lower support, the front upper surrounding frame and / or the rear upper surrounding frame extends in the up-down direction.

[0034] In one of the embodiments, the push rod is a telescopic structure.

[0035] The stroller further comprises a front wheel assembly and a rear wheel assembly, the front wheel assembly is arranged on the front lower support, and the rear wheel assembly is arranged on the rear lower support.

[0036] In the folded state, the projections of the front wheel assembly and the rear wheel assembly in the width direction of the frame at least partially coincide.

[0037] The stroller has the advantages that:

[0038] The stroller provided by the utility model has the advantages that the push rod is connected to one side of the frame, and when the frame is converted between the unfolded state and the folded state, part of the structure of the frame moves relative to the push rod in the axial direction of the push rod, so that the push rod does not affect the folding and unfolding of the frame, the push rod does not need to be disassembled from the frame when the frame is folded, the operation steps when the stroller is folded are reduced, the push rod does not need to be disassembled from the frame, the probability of losing the push rod is further reduced, and the reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structure schematic view of the stroller provided by the utility model embodiment one Figure 1 ;

[0040] Figure 2 is a front view of the stroller provided by the utility model embodiment one

[0041] Figure 3 is a folding process reference of the stroller provided by the utility model embodiment one Figure 1 ;

[0042] Figure 4 is the front view of the stroller on the basis of Figure 3 ;

[0043] Figure 5 is a schematic view of the stroller provided by the utility model embodiment one in the folded state

[0044] Figure 6 is the front view of the stroller on the basis of Figure 5 ;

[0045] Figure 7 is a structure schematic view of the stroller provided by the utility model embodiment one Figure 2 ;

[0046] Figure 8 is a structure schematic view of the limiting assembly provided by the utility model embodiment one Figure 1 ;

[0047] Figure 9 is a structure schematic view of the limiting assembly provided by the utility model embodiment one Figure 2 ;

[0048] Figure 10 is a structural schematic view of the base provided by the embodiment one of the utility model;

[0049] Figure 11 is the exploded schematic view of the first fixing member and the locking member provided by the embodiment one of the utility model;

[0050] Figure 12 is the structural schematic view of the second fixing member provided by the embodiment one of the utility model Figure 1 ;

[0051] Figure 13 is the structural schematic view of the second fixing member provided by the embodiment one of the utility model Figure 2 ;

[0052] Figure 14 is the structural schematic view of the cart provided by the embodiment two of the utility model;

[0053] Figure 15 is the front view of the cart provided by the embodiment two of the utility model;

[0054] Figure 16 is the schematic view of the cart frame in the folded state provided by the embodiment two of the utility model.

[0055] In the drawing:

[0056] 1, cart frame; 11, front lower support member; 111, first rod; 112, second rod; 113, support rod; 12, rear lower support member; 13, front upper enclosing frame; 131, third rod; 132, fourth rod; 14, rear upper enclosing frame; 15, first connecting member; 151, fifth rod; 152, sixth rod; 16, second connecting member; 17, first connecting rod; 18, second connecting rod; 19, sliding member;

[0057] 2, push rod;

[0058] 3, limiting structure; 301, first connecting part; 3011, clamping part; 302, second connecting part; 3021, sliding groove; 31, base; 311, first limiting part; 312, second limiting part; 321, first fixing member; 3211, first pushing part; 322, second fixing member; 3221, locking groove; 3222, first guide inclined surface; 3223, second pushing part; 33, locking member; 331, first elastic member; 332, first shaft; 333, pressing part; 334, second guide inclined surface; 335, hook part; 34, second elastic member; 35, third elastic member; 361, eleventh axis line; 362, twelfth axis line; 363, thirteenth axis line; 37, mounting seat;

[0059] 4, front wheel assembly; 5, rear wheel assembly;

[0060] 10, first connection point; 20, second connection point; 30, third connection point; 40, fourth connection point;

[0061] a, first axis; b, second axis; c, third axis; d, fourth axis; e, fifth axis; f, sixth axis; g, seventh axis; h, eighth axis; i, ninth axis; j, tenth axis; k, fourteenth axis; L, fifteenth axis;

[0062] A1, first rotation direction; A2, second rotation direction; A3, third rotation direction; A4, fourth rotation direction; A5, fifth rotation direction; A6, sixth rotation direction;

[0063] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0064] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0065] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0066] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0067] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0068] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0069] Example 1

[0070] like Figures 1 to 6 As shown, this embodiment provides a trolley in which the push rod 2 and the frame 1 can remain connected during folding, which improves folding efficiency and reduces the risk of losing the push rod 2.

[0071] In this embodiment, the frame 1 has an unfolded state and a folded state; such as Figure 1 and Figure 2 This is a schematic diagram of the frame 1 in the unfolded state; Figure 5 and Figure 6 This is a schematic diagram showing the frame 1 in a folded state. From... Figures 1 to 6 It can be seen that the frame 1 folds along the front-to-back direction during the folding process. Of course, it is understandable that the frame 1 can also fold in other directions. The specific structure of the frame 1 can be a structure in the prior art, and this embodiment does not limit it.

[0072] For example, in this embodiment, the push rod 2 is connected to one side of the frame 1. When the frame 1 is switched between the unfolded state and the folded state, part of the structure of the frame 1 moves relative to the push rod 2 in the axial direction of the push rod 2, so that the push rod 2 and the frame 1 do not need to be separated.

[0073] The trolley provided in this embodiment has a push rod connected to one side of the frame. When the frame 1 is switched between the unfolded state and the folded state, part of the structure of the frame 1 moves relative to the push rod 2 in the axial direction of the push rod 2. This ensures that the push rod does not affect the folding and unfolding of the frame 1. The push rod 2 does not need to be removed from the frame 1, reducing the number of operation steps when folding the trolley. Furthermore, the push rod does not need to be removed from the frame, thereby reducing the probability of the push rod being lost and improving reliability.

[0074] Exemplarily, in this embodiment, the push rod 2 is movably connected to the frame 1. In some optional embodiments, the bottom end of the push rod 2 is movably connected to the bottom of the frame 1, and the top end of the push rod 2 is a gripping end, allowing the user to grip the gripping end to drag the cart. Exemplarily, the bottom end of the push rod 2 is rotatably connected to the frame 1.

[0075] In the embodiment, the relative movement between the stroller frame 1 and the push rod 2 can be achieved by the limiting structure 3. Specifically, the stroller further comprises the limiting structure 3, which is arranged between the push rod 2 and the stroller frame 1. When the stroller frame 1 is converted between the unfolded state and the folded state, the stroller frame 1 drives the limiting structure 3 to move relative to the push rod 2 along the axis of the push rod 2, that is, the limiting structure 3 can move relative to the push rod 2, thereby achieving the relative movement between the stroller frame 1 and the push rod 2.

[0076] In some embodiments, the push rod 2 is movably connected to the stroller frame 1, so that the push rod 2 has a first position close to the stroller frame 1 and a second position away from the stroller frame 1, wherein, Figure 1 is a schematic view of the push rod 2 close to the stroller frame 1, that is, a schematic view of the push rod 2 when the push rod is in the first position. When the push rod is in the second position, the top end of the push rod 2 is away from the stroller frame 1, so that the included angle between the push rod 2 and the stroller frame 1 increases.

[0077] In some optional embodiments, when the push rod 2 is in the first position, the stroller frame 1 can be converted between the unfolded state and the folded state, that is, when the push rod 2 is in the first position close to the stroller frame 1, it does not affect the folding of the stroller frame 1, so that the push rod 2 does not need to be detached from the stroller frame 1 when the stroller frame 1 is folded, reducing the operation steps when the stroller is folded, and the push rod 2 does not need to be detached from the stroller frame 1, thereby reducing the probability of losing the push rod 2. In the embodiment, when the push rod 2 is in the first position and the stroller frame 1 is converted between the unfolded state and the folded state, the limiting structure 3 moves relative to the push rod 2 along the axis of the push rod 2 to cooperate with the position change of the part connected with the limiting structure 3 in the axis direction of the push rod 2 when the stroller frame 1 is folded, thereby reducing the probability of stalling of the stroller frame 1.

[0078] When the stroller comprises the limiting structure 3, the limiting structure 3 is arranged on the push rod 2 or the stroller frame 1. When the limiting structure is connected with the stroller frame 1 or the push rod 2, the push rod 2 is in the first position, so that the limiting structure 3 can limit the push rod 2 in the first position to prevent the push rod 2 in the first position from moving relative to the stroller frame 1, thereby achieving the locking of the push rod 2. It should be noted that when the limiting structure 3 is arranged on the push rod 2 and the limiting structure 3 is connected with the stroller frame 1, the push rod 2 can be limited in the first position; when the limiting structure 3 is disconnected with the stroller frame 1, the push rod 2 is in the second position. When the limiting structure 3 is arranged on the stroller frame 1 and connected with the push rod 2, the push rod 2 can be limited in the first position; when the limiting structure 3 is disconnected with the push rod 2, the push rod 2 is in the second position.

[0079] In one embodiment, when the stroller frame 1 is converted between the unfolded state and the folded state, the stroller frame 1 drives the limiting structure 3 to slide along the axis of the push rod 2.

[0080] In other embodiments, when the frame 1 is converted between the unfolded state and the folded state, the frame 1 drives the limiting structure 3 to rotate along the axis direction of the push rod 2.

[0081] In other embodiments, when the frame 1 is converted between the unfolded state and the folded state, the frame 1 drives the limiting structure 3 to rotate along the axis direction of the push rod 2.

[0082] Exemplarily, as shown in Figure 1 The limiting structure 3 is arranged on the frame 1, and the connection between the limiting structure 3 and the frame 1 can be one or more of fixed connection, rotating connection and sliding connection. It can be understood that the connection between the limiting structure and the push rod can be rotating connection and / or sliding connection.

[0083] In some optional embodiments, the limiting structure 3 comprises a first connecting part and a second connecting part connected together. The frame 1 can rotate relative to the first connecting part, and the second connecting part can slide relative to the push rod 2, so as to realize the position change of the limiting structure 3 relative to the push rod 2 during the unfolding and folding of the frame 1.

[0084] Further optionally, as shown in Figures 8 to 13 The limiting structure 3 comprises a first fixing member 321 and a second fixing member 322. At least one of the first fixing member 321 and the second fixing member 322 is movably connected to the surrounding frame of the frame 1 and has a closed state and a separated state. In the closed state, the first fixing member 321 and the second fixing member 322 surround a containing space, and the push rod 2 is limited in the containing space. In the separated state, the push rod 2 is separated from the limiting structure 3. Specifically, the first fixing member 321 and the second fixing member 322 can form a half-enclosing structure (not shown in the figure), i.e., the first fixing member 321 and the second fixing member 322 surround to form a half-enclosed space, and one end of the first fixing member 321 is arranged opposite to one end of the second fixing member 322. The push rod 2 can enter between the first fixing member 321 and the second fixing member 322 (i.e., the half-enclosed space) through the opening of the half-enclosing structure, and then can be located in the containing space.

[0085] It should be noted that the containing space in the present embodiment can be formed between the first fixing member 321 and the second fixing member 322, or the containing space can also be formed by the first fixing member 321, the second fixing member 322 and the surrounding frame together, and the present example does not limit this.

[0086] In one embodiment, at least one of the first fixing member 321 and the second fixing member 322 is movably connected to the part of the frame 1 forming the first connecting part, i.e., the part of the first fixing member 321 and the second fixing member 322 connected to the frame 1 corresponds to the first connecting part. The part of the first fixing member 321 and the second fixing member 322 surrounding the accommodating space forms the second connecting part, i.e., one part of the first fixing member 321 is the first connecting part and the other part is the second connecting part, and one part of the second fixing member 322 is the first connecting part and the other part is the second connecting part.

[0087] In other embodiments, as shown in Figures 8 to 13 the limiting structure 3 further comprises a base 31 movably arranged on the frame 1, and the first fixing member 321 and the second fixing member 322 are movably connected to the base 31 and have a folded state and an unfolded state relative to the base 31. When the limiting structure 3 comprises the base 31, the base 31 can correspond to the first connecting part described above. The first fixing member 321 and / or the second fixing member 322 can correspond to the second connecting part described above.

[0088] Optionally, when the limiting structure 3 comprises the base 31, the first fixing member 321 and the second fixing member 322 are both rotatably connected to the base 31, and the base 31 is connected to the frame 1. For example, as shown in Figure 10 the first fixing member 321 is rotatably connected to the base 31 about an eleventh axis 361, and the second fixing member 322 is rotatably connected to the base 31 about a twelfth axis 362.

[0089] For example, a limiting assembly is arranged between the first fixing member 321 and the second fixing member 322, and the limiting assembly is used to limit the movement of the first fixing member 321 and / or the second fixing member 322 relative to the frame or the base 31, so that the first fixing member 321 and the second fixing member 322 remain in the folded state.

[0090] For example, the limiting assembly can be a locking member 33 capable of locking the first fixing member 321 and the second fixing member 322 in the folded state. Of course, it can be understood that the limiting assembly can also be achieved in other ways, such as buckles, magnetic attraction, etc., which are not limited in the present embodiment.

[0091] In some optional embodiments, the limiting assembly comprises a locking member 33 arranged on one of the first fixing member 321 and the second fixing member 322, and a locking groove 3221 arranged on the other of the first fixing member 321 and the second fixing member 322. The locking member 33 is movably connected to one of the first fixing member 321 and the second fixing member 322, and the locking member 33 moves relative to the first fixing member 321 or the second fixing member 322 to have a locking position and an unlocking position.

[0092] In some embodiments, the locking member 33 is rotationally connected to the first fixing member 321. For example, as shown in Figure 11 the locking member 33 is rotationally connected to the mounting base 37 about a thirteenth axis 363. For example, the mounting base 37 is provided with a first shaft 332, and the locking member 33 is sleeved on the first shaft 332 and can rotate about the first shaft 332.

[0093] For example, as shown in Figure 11 one end of the locking member 33 is a hook portion 335. In the locked position, the hook portion 335 can be hooked in the locking groove 3221, and the hook portion 335 will not be separated from the locking groove 3221 under the limitation of the groove wall of the locking groove 3221. In the unlocked position, the locking member 33 is separated from the locking groove 3221. For example, the locking member 33 can be driven out of the locking groove 3221 by an external force to achieve separation from the locking groove 3221.

[0094] Optionally, referring to Figure 13 , one of the second fixing member 322 and the first fixing member 321 provided with the locking groove 3221 is provided with a first guide inclined surface 3222. The locking member 33 can slide on the first guide inclined surface 3222, and the first guide inclined surface 3222 is used to guide the locking member 33 to the locking groove 3221. Through the guidance of the first guide inclined surface 3222, the difficulty of positioning the locking member 33 to the locking groove 3221 is reduced, the success rate of locking is improved, and the convenience of use is improved.

[0095] In some optional embodiments, referring to Figure 11 , the limiting structure 3 further comprises a first elastic member 331. Among them, the first elastic member 331 is arranged between the first fixing member 321 or the second fixing member 322 and the locking member 33, and always has a tendency to drive the locking member 33 to be positioned in the locking groove 3221, so that during the movement of the first fixing member 321 and the second fixing member 322 from the separated state to the folded state, the locking member 33 can be automatically moved to the locking groove 3221 and positioned in the locking groove 3221 under the driving of the first elastic member 331, realizing automatic locking, the function is more abundant, the structure is more intelligent, and the use convenience is further improved.

[0096] For example, the first elastic member 331 can be a torsional spring. The main body of the torsional spring can be sleeved on the first shaft 332. One arm of the torsional spring abuts against the first fixing member 321 or the mounting base 37, and the other arm of the torsional spring abuts against the locking member 33, so as to be able to apply a force to the locking member 33 to drive the locking member 33 to be positioned in the locking groove 3221. Of course, it can be understood that the first elastic member 331 can also be other elastic components, which will not be enumerated one by one in this embodiment.

[0097] Optionally, as shown in Figure 1As shown, when the locking member 33 is rotationally connected to the first fixing member 321 or the second fixing member 322 through the first shaft 332, one end of the locking member 33 is positioned in the locking groove 3221. The other end of the locking member 33 is a pressing portion 333, and the first shaft 332 is arranged in the middle of the locking member 33. Pressing the pressing portion 333 can rotate the locking member 33 around the first shaft 332, so that one end of the locking member 33 is separated from the locking groove 3221. It can be seen that the unlocking step of the limiting structure 3 in the embodiment is relatively simple and convenient to operate. By arranging the mounting seat 37, the pressing portion 333 is away from the surface of the first fixing member 321 facing away from the second fixing member 322, so that the pressing portion 333 has sufficient space to drive one end of the locking member 33 to exit the locking groove 3221.

[0098] Optionally, when the first fixing member 321 and the second fixing member 322 are moved relative to the base 31 to switch to the closing state, the first fixing member 321 or the second fixing member 322 can drive the locking member 33 to move, so that the locking member 33 moves from the unlocking position to the locking position, without manually driving the locking member 33 to move, further improving the convenience of use.

[0099] In some optional embodiments, please continue to refer to Figure 11 The limiting structure 3 further comprises a second elastic member 34. The second elastic member 34 is arranged between the base 31 and the first fixing member 321 and always has a tendency to drive the first fixing member 321 to move to the separated state, so that when the locking member 33 is not connected to the first fixing member 321 and the second fixing member 322, the first fixing member 321 can be opened under the action of the second elastic member 34, so as to facilitate the push rod 2 to enter the semi-closed space, without manually adjusting the position of the first fixing member 321, improving the convenience of use.

[0100] In the embodiment, the second elastic member 34 is a torsion spring, and the base 31 is provided with a second shaft (not shown in the figure), the main body of the torsion spring is sleeved on the second shaft, and the two arms of the torsion spring are respectively abutted with the base 31 and the first fixing member 321 and apply a force to the first fixing member 321 to rotate away from the second fixing member 322, so as to be able to move to the separated state. Of course, it can be understood that the second elastic member 34 can also be other elastic components, which are not enumerated one by one in the embodiment.

[0101] Exemplarily, as Figure 10As shown, the base 31 is provided with a first limiting portion 311 for abutting against the first fixing member 321 to limit the first fixing member 321 to the separated state, that is, the first fixing member 321 will abut against the first limiting portion 311 when moving to the separated state and will not continue to move. For example, the first limiting portion 311 is a limiting block, and the first fixing member 321 is provided with a limiting groove, and the limiting block abuts against the groove wall of the limiting groove after the first fixing member 321 is moved to the position to achieve limiting.

[0102] Optionally, as shown, Figure 12 The limiting structure 3 further includes a third elastic member 35. The third elastic member 35 is arranged between the base 31 and the second fixing member 322 and always has a tendency to drive the second fixing member 322 to move to the separated state, so that when the locking member 33 is not connected to the first fixing member 321 and the second fixing member 322, the second fixing member 322 can be opened under the action of the third elastic member 35 to facilitate the push rod 2 to enter the semi-closed space, without the need for manual adjustment of the position of the second fixing member 322, thereby improving the use convenience.

[0103] In this embodiment, the third elastic member 35 is a torsion spring, and the base 31 is provided with a third shaft (not shown in the figure), the main body of the torsion spring is sleeved on the third shaft, and the two arms of the torsion spring are respectively abutted against the base 31 and the second fixing member 322 and apply a force to the second fixing member 322 to rotate away from the first fixing member 321 to be able to move to the separated state. Of course, it can be understood that the third elastic member 35 can also be other elastic components, which will not be enumerated one by one in this embodiment.

[0104] Exemplarily, as shown, Figure 10 The base 31 is provided with a second limiting portion 312 for abutting against the second fixing member 322 to limit the second fixing member 322 to the separated state, that is, the second fixing member 322 will abut against the second limiting portion 312 when moving to the separated state and will not continue to move. For example, the second limiting portion 312 is a limiting block, and the second fixing member 322 is provided with a limiting groove, and the limiting block abuts against the groove wall of the limiting groove after the second fixing member 322 is moved to the position to achieve limiting.

[0105] Optionally, one side of the first fixing member 321 is provided with a first pushing portion 3211, and the same side of the second fixing member 322 is provided with a second pushing portion 3223, and in the separated state, as shown, Figure 9As shown, the first pushing part 3211 intersects with the second pushing part 3223, that is, the first pushing part 3211 and the second pushing part 3223 are arranged in cross in one direction, and the movement of the first pushing part 3211 and the second pushing part 3223 does not interfere with each other when moving from the separation state to the closing state. It should be noted that one end of the first fixed part 321 is used to form an opening communicating with the semi-closed space, and the first pushing part 3211 is at the other end of the first fixed part 321. One end of the second fixed part 322 is used to form an opening communicating with the semi-closed space, and the second pushing part 3223 is at the other end of the second fixed part 322.

[0106] In this embodiment, when the push rod 2 enters the accommodation space, the first fixed part 321 and the second fixed part 322 are pushed to switch to the closing state. Specifically, the first pushing part 3211 and the second pushing part 3223 are used to contact the push rod 2, and the positioning member pushes the first pushing part 3211 and the second pushing part 3223 to push the first fixed part 321 to rotate around the eleventh axis 361 against the elastic force of the second elastic member 34 through the first pushing part 3211, and at the same time, the second pushing part 3223 pushes the second fixed part 322 to rotate around the twelfth axis 362 against the elastic force of the third elastic member 35, until the first fixed part 321 and the second fixed part 322 form the accommodation space.

[0107] For example, as shown in Figure 11 and Figure 12 , the first pushing part 3211 and the second pushing part 3223 are provided in plurality, respectively. And as shown in Figure 9 , the plurality of first pushing parts 3211 and the plurality of second pushing parts 3223 are arranged in cross in one direction.

[0108] Optionally, the first limiting part 311 can abut against the part of the first fixed part 321 except the first pushing part 3211, for example, two adjacent first pushing parts 3211 form a limiting groove for abutting against the first limiting part 311, and the first limiting part 311 contacts the groove bottom of the limiting groove. Similarly, the second limiting part 312 can abut against the part of the second fixed part 322 except the second pushing part 3223, for example, two adjacent second pushing parts 3223 form a limiting groove for abutting against the second limiting part 312, and the second limiting part 312 contacts the groove bottom of the limiting groove.

[0109] For example, as shown in Figure 9 , the locking member 33 is provided with a second guide inclined surface 334, and in the separation state, the second guide inclined surface 334 is arranged towards the positioning member, and the positioning member can slide on the second guide inclined surface 334, so that the push rod 2 cannot enter the semi-closed space due to the jamming with the locking member 33, and the reliability of the limiting structure 3 is improved.

[0110] In some optional embodiments, the base 31, the first fixing member 321 or the second fixing member 322 is rotatably arranged on the fourth rod 132 of the front upper surrounding frame 13, and the rotation axis of the base 31, the first fixing member 321 or the second fixing member 322 is the axis of the fourth rod 132, i.e., the fourteenth axis k.

[0111] Of course, it can be understood that the limiting structure 3 can also be other structures as long as the function of the limiting push rod 2 can be realized, and the embodiments are not limited in this regard.

[0112] When folding the stroller provided by the embodiments, please refer to Figure 1 and Figure 7 , the push rod 2 is in the first position, at this time, the front lower support member 11 and the rear lower support member 12 can be pushed or pulled in the B direction shown in Figure 2 , at this time, the front lower support member 11 and the rear lower support member 12 rotate around the sixth axis f, and the fourth connecting point 40 moves upward. When the front lower support member 11 rotates, the first connecting member 15 is driven to rotate, specifically, the first connecting member 15 rotates around the ninth axis i in the second rotation direction A2; at the same time, the first connecting member 15 rotates around the fifth axis e in the fifth rotation direction A5; the rotation of the first connecting member 15 drives the front upper surrounding frame 13 to be pulled by the first connecting rod 17, wherein the first connecting rod 17 rotates around the tenth axis j and the eighth axis h, and the first connecting member 15 pulls the front upper surrounding frame 13 by the first connecting rod 17 to make the front upper surrounding frame 13 rotate around the seventh axis g in the third rotation direction A3, and at the same time drives the limiting structure 3 to rotate around the fourteenth axis k to drive the push rod 2 to rotate around the fifteenth axis L in the first rotation direction A1, and makes the push rod 2 slide downward along the limiting structure 3.

[0113] At the same time, when the rear lower support member 12 rotates around the second axis b in the sixth rotation direction A6, the second connecting member 16 rotates around the fifth axis e in the fourth rotation direction A4. During the movement of the second connecting member 16, the two ends of the second connecting rod 18 rotate around the first axis a and the fourth axis d respectively, and the sliding member 19 slides on the second connecting member 16. In this process, the rear upper surrounding frame 14 rotates around the third axis c and rotates in the direction opposite to the direction A3 until it is folded into the state shown in Figure 5 and Figure 6 .

[0114] Exemplarily, the embodiments provide a stroller frame 1, which has a relatively simple structure, is convenient to fold, and has high folding reliability.

[0115] In the unfolded state, the frame 1 comprises a support structure (not shown in the figure) and a surrounding frame (not shown in the figure). The push rod 2 is rotationally connected to the support structure, and the surrounding frame is connected to the support structure. When the frame 1 is converted from the unfolded state to the folded state, the surrounding frame moves along the axis direction of the push rod 2 and approaches the support structure to achieve the folding of the frame 1.

[0116] Further optionally, when the push rod comprises a limiting structure 3, the limiting structure 3 is arranged on the surrounding frame, and the limiting structure 3 has a fixed state and a separated state. When the limiting structure 3 is in the fixed state, the push rod 2 is limited in the first position. At this time, when the frame 1 is converted from the unfolded state to the folded state, the limiting structure 3 slides along the axis direction of the push rod 2 to achieve the relative movement of the push rod 2 and the limiting structure 3, so that the surrounding frame moves without being limited by the push rod 2 relative to the support structure, preventing the problem that the frame 1 cannot be folded due to the arrangement of the push rod 2, improving the operation convenience, and having high folding reliability. When the limiting structure is in the separated state, the push rod 2 is in the second position.

[0117] The support structure in the embodiment is used to support children or goods, and an object is arranged between the surrounding frame and the support structure to form a placement space with an open top.

[0118] In some optional embodiments, when the frame 1 is in the folded state, the extension direction of the surrounding frame is substantially parallel to the extension direction of the push rod 2, or the included angle between the extension direction of the surrounding frame and the extension direction of the push rod 2 is small, so that the folding of the frame 1 can be more complete, and the folded stroller can have a smaller volume. In the embodiment, in the folded state, the support structure and the surrounding frame are close to each other relative to the push rod 2, so that the distance between the support structure, the surrounding frame and the push rod 2 can be minimized to further improve the folding effect.

[0119] In some optional embodiments, as shown in Figures 1 to 6 The support structure comprises a front lower support 11 and a rear lower support 12, wherein the rear lower support 12 is pivotally connected to the front lower support 11.

[0120] The surrounding frame in the embodiment comprises a front upper surrounding frame 13 and / or a rear upper surrounding frame 14, wherein Figures 1 to 6 is a schematic view of the surrounding frame comprising the front upper surrounding frame 13 and the rear upper surrounding frame 14.

[0121] Exemplarily, the frame 1 further comprises a connecting structure (not shown in the figure) arranged between the support structure and the surrounding frame, for connecting the support structure and the surrounding frame to make the frame 1 into a whole.

[0122] Optionally, when the frame 1 is converted from the unfolded state to the folded state, the rear lower support 12 rotates around the pivot between the rear lower support 12 and the front lower support 11 and moves towards the front lower support 11, the support structure drives the surrounding frame to move, so that the front upper surrounding frame 13 moves towards the front lower support 11 and the rear upper surrounding frame 14 moves towards the rear lower support 12, to achieve folding. In addition, the front upper surrounding frame 13 and / or the rear upper surrounding frame 14 extend in the up-down direction (i.e. the first direction X in the embodiment), so that the front upper surrounding frame 13 and the rear upper surrounding frame 14 are converted from the horizontal state to the vertical state, reducing the space required in the horizontal direction.

[0123] In the embodiment, in the unfolded state, the front lower support 11 and the rear lower support 12 cooperate to form a support plane, and the support plane is used to support a child or other objects. For example, the front lower support 11 and the rear lower support 12 are both frame structures, and the front lower support 11 and the rear lower support 12 are provided with support plates, and the child or other objects are supported on the support plates.

[0124] In some optional embodiments, the front lower support 11 and the rear lower support 12 are both U-shaped, and each include two first rods 111 arranged opposite to each other and a second rod 112 connected between the two first rods 111. For example, the two first rods 111 of the front lower support 11 are pivotally connected to the two first rods 111 of the rear lower support 12 one by one. For example, the positions where the two first rods 111 of the front lower support 11 are pivotally connected to the two first rods 111 of the rear lower support 12 are located at the ends of the first rods 111 away from the second rod 112. In the unfolded state, the first rods 111 and the second rod 112 of the front lower support 11 and the rear lower support 12 can be arranged in the same layer, i.e. in the same plane, to form a support plane. In the folded state, the front lower support 11 and the rear lower support 12 are rotated around the pivot between the front lower support 11 and the rear lower support 12 to move towards each other, to achieve folding.

[0125] Optionally, a support rod 113 can be connected between the two first rods 111 of the front lower support 11 to improve the support performance of the front lower support 11 in the unfolded state. Similarly, a support rod 113 can also be connected between the two first rods 111 of the rear lower support 12.

[0126] In the embodiment, the front upper surrounding frame 13 and the front lower support 11 are arranged opposite to each other in the first direction X (i.e. the up-down direction in the embodiment), and specifically, the front upper surrounding frame 13 is arranged above the front lower support 11, and the cooperation of the front upper surrounding frame 13 and the front lower support 11 can form a frame with a certain height. The limiting structure 3 is arranged on the front upper surrounding frame 13, so that the limiting structure 3 can be connected to the middle part of the push rod 2, to improve the limiting effect of the push rod 2.

[0127] As Figure 2As shown, the rear upper frame 14 and the rear lower support member 12 are arranged opposite each other in the first direction X, and are arranged opposite to the front upper frame 13 in the second direction Y, so that the front upper frame 13, the front lower support member 11, the rear upper frame 14 and the rear lower support member 12 can cooperate with each other to form a receiving space. The second direction Y is perpendicular to the first direction X.

[0128] In some alternative embodiments, both the front upper frame 13 and the rear upper frame 14 are U-shaped and each includes two opposing third rods 131 and a fourth rod 132 connecting the two third rods 131. For example, the fourth rod 132 of the front upper frame 13 is parallel to the second rod 112 of the front lower support member 11, and the fourth rod 132 of the rear upper frame 14 is parallel to the second rod 112 of the rear lower support member 12.

[0129] For example, an enclosure is connected between the front upper frame 13, the front lower support member 11, the rear upper frame 14, and the rear lower support member 12, forming a receiving space for accommodating a child or object. The enclosure includes, but is not limited to, cloth, nylon, etc.

[0130] In some optional embodiments, the frame 1 further includes a first connector 15. The lower end of the first connector 15 is pivotally connected to the front lower support 11, and the upper end of the first connector 15 is pivotally connected to the rear upper frame 14, allowing the rear upper frame 14 and the front lower support 11 to be connected via the first connector 15. Since the connections between the first connector 15 and the front lower support 11, and between the first connector 15 and the rear upper frame 14, are both pivotal connections, it facilitates the folding of the first connector 15 relative to the front lower support 11 and relative to the rear upper frame 14. In this embodiment, the lower end of the push rod 2 can be rotatably connected to either the first connector 15 or the rear lower support 12.

[0131] like Figure 2 As shown, the frame 1 also includes a second connector 16. The lower end of the second connector 16 is pivotally connected to the rear lower support member 12, and the upper end of the second connector 16 is pivotally connected to the front upper frame 13, thereby connecting the rear lower support member 12 and the front upper frame 13. In some optional embodiments, the second connector 16 is arranged crosswise with the first connector 15 and pivotally connected at the intersection. On the one hand, this can improve the stability of the connection between the front upper frame 13, the front lower support member 11, the rear upper frame 14, and the rear lower support member 12; on the other hand, it can also facilitate the folding of the entire frame 1.

[0132] In some alternative embodiments, the lower end of the push rod 2 may also be rotatably connected to the second connector 16 or the front lower support 11.

[0133] In some optional embodiments, the first connecting member 15 and the second connecting member 16 are both in U-shape, and each comprises two fifth rods 151 arranged oppositely and a sixth rod 152 connected between the two fifth rods 151. For example, the two fifth rods 151 of the first connecting member 15 are pivotally connected with the two fifth rods 151 of the second connecting member 16 one by one. In this embodiment, the two fifth rods 151 of the first connecting member 15 are also pivotally connected with the two first rods 111 of the front lower support 11 one by one, for example, the ends of the two fifth rods 151 of the first connecting member 15 close to the sixth rod 152 are pivotally connected with the two first rods 111 of the front lower support 11 one by one. The two fifth rods 151 of the second connecting member 16 are also pivotally connected with the two first rods 111 of the rear lower support 12 one by one, for example, the ends of the two fifth rods 151 of the second connecting member 16 close to the sixth rod 152 are pivotally connected with the two first rods 111 of the rear lower support 12 one by one, so as to obtain the frame 1 as shown in Figure 1

[0134] In some optional embodiments, the sixth rod 152 of the first connecting member 15 is parallel to the sixth rod 152 of the front lower support 11, and the sixth rod 152 of the second connecting member 16 is parallel to the sixth rod 152 of the rear lower support 12. In some other optional embodiments, the sixth rod 152 of the first connecting member 15 is parallel to the sixth rod 152 of the second connecting member 16.

[0135] It should be noted that the lower end of the push rod 2 is movably connected to the front lower support 11 or the first connecting member 15, so that when the push rod 2 moves, it can drive the entire frame 1 to move. For example, the lower end of the push rod 2 is pivotally connected to the front lower support 11 or the first connecting member 15. When the lower end of the push rod 2 is pivotally connected to the front lower support 11, the lower end of the push rod 2 is pivotally connected to the second rod 112 of the front lower support 11. When the lower end of the push rod 2 is pivotally connected to the first connecting member 15, the lower end of the push rod 2 is pivotally connected to the sixth rod 152 of the first connecting member 15.

[0136] When the frame 1 is converted from the unfolded state to the folded state, the front lower support 11 and the rear lower support 12 are folded towards each other, the first connecting member 15 and the second connecting member 16 are folded towards each other, and the front upper surrounding frame 13 and the rear upper surrounding frame 14 are folded towards each other, so that the front lower support 11, the rear lower support 12, the first connecting member 15, the second connecting member 16, and the front upper surrounding frame 13 and the rear upper surrounding frame 14 are folded towards each other in the second direction Y, so as to realize folding.

[0137] Optionally, please continue to refer to Figure 2 ​The frame 1 also includes a first link 17. The upper end of the first link 17 is pivotally connected to the front upper frame 13, and the lower end of the first link 17 is pivotally connected to the middle or lower part of the first connector 15. The first link 17 is used to connect the front upper frame 13 and the first connector 15 to limit the distance between the two.

[0138] Furthermore, the pivot connection position between the first link 17 and the first connector 15 is located between the lower end of the first connector 15 and the first preset position. The first preset position is the rotational connection position between the first connector 15 and the second connector 16. This ensures that the arrangement of the first link 17 will not interfere with the relative movement between the first connector 15 and the second connector 16, nor with the relative movement between the first connector 15 and the front lower support 11, thus reducing the probability of jamming during folding.

[0139] It should be noted that there are two first connecting rods 17, which are arranged in parallel. The two ends of one first connecting rod 17 are pivotally connected to a third rod 131 of the front upper frame 13 and a fifth rod 151 of the first connecting member 15. The two ends of the other first connecting rod 17 are pivotally connected to another third rod 131 of the front upper frame 13 and another fifth rod 151 of the first connecting member 15.

[0140] In some alternative embodiments, such as Figure 2 As shown, the frame 1 also includes a second link 18, wherein the upper end of the second link 18 is pivotally rotatably connected to the rear upper frame 14, and the lower end of the second link 18 is slidably connected to the second connector 16. For example, the lower end of the second link 18 is slidably connected to the second connector 16 along the axial direction of the second connector 16. Furthermore, the position where the second link 18 and the second connector 16 are slidably connected is between the lower end of the second connector 16 and a second preset position, which is the rotational connection position between the first connector 15 and the second connector 16.

[0141] In this embodiment, by configuring the lower end of the second connecting rod 18 to be slidably connected to the second connecting member 16, when folding, as the second connecting member 16 and the rear upper frame 14 move closer to the first connecting member 15 and the front upper frame 13, the second connecting rod 18 can slide relative to the second connecting member 16, thereby facilitating the rear upper frame 14 to move closer to the first connecting member 15 and improving structural reliability. If the connection between the first connecting rod 17 and the second connecting rod 18 is a pivotal rotation connection, there will be a situation where the front upper frame 13 and the rear upper frame 14 cannot move closer to the first connecting member 15 and the second connecting member 16 due to the presence of the first connecting rod 17 and the second connecting rod 18, thus causing jamming.

[0142] Of course, it is understood that the upper end of the second link 18 can be slidingly connected with the rear upper surrounding frame 14, the lower end of the second link 18 is pivotally connected with the first connecting member 15, and the pivot connection position of the second link 18 and the first connecting member 15 is between the lower end of the first connecting member 15 and the second preset position. In this way, the vehicle frame 1 can also be smoothly folded.

[0143] In the embodiment, the second link 18 is slidingly connected with the second connecting member 16, and the sliding connection manner of the two can have multiple modes. The embodiment exemplarily provides the following three sliding connection manners.

[0144] In the first sliding connection manner, the lower end of the second link 18 is provided with a transverse pin shaft, the second connecting member 16 is provided with a guide groove along the axial direction of the second connecting member 16, and the transverse pin shaft is inserted into the guide groove to form direct sliding connection.

[0145] In the second sliding connection manner, as shown in Figure 2 , a sliding member 19 sliding along the axial direction of the second connecting member 16 is arranged on the second connecting member 16, and the lower end of the second link 18 is pivotally connected with the sliding member 19.

[0146] In the third sliding connection manner, a roller is pivotally connected to the lower end of the second link 18, and a guide rail is arranged on the second connecting member 16 along the axial direction of the second connecting member 16, and the roller is rollably installed on the guide rail.

[0147] In some optional embodiments, in the folded state, the projection of the front lower support 11 in the width direction of the vehicle frame 1 coincides with the projection of the first connecting member 15 in the width direction of the vehicle frame 1, and the projection of the rear lower support 12 in the width direction of the vehicle frame 1 coincides with the projection of the second connecting member 16 in the width direction of the vehicle frame 1, so that the volume of the folded vehicle frame 1 can be smaller.

[0148] Optionally, as shown in Figure 4 , the pivot connection point of the front upper surrounding frame 13 and the second connecting member 16 is the first connection point 10, the pivot connection point of the rear upper surrounding frame 14 and the first connecting member 15 is the second connection point 20, the pivot connection point of the first connecting member 15 and the second connecting member 16 is the third connection point 30, and the pivot connection point of the front lower support 11 and the rear lower support 12 is the fourth connection point 40. When the vehicle frame 1 is converted from the unfolded state to the folded state, the first connection point 10, the second connection point 20, the third connection point 30, and the fourth connection point 40 move in the same direction, so as to reduce the size of the folded vehicle frame 1 in the first direction X (which can be understood as the longitudinal direction), thereby facilitating the miniaturization of the vehicle frame 1. For example, when the vehicle frame 1 is converted from the unfolded state to the folded state, the first connection point 10, the second connection point 20, the third connection point 30, and the fourth connection point 40 all move upward, so as to reduce the interference with the front wheel assembly 4 and the rear wheel assembly 5.

[0149] In some optional embodiments, in the folded state, the first connecting point 10 and the second connecting point 20 are at the same height, the fourth connecting point 40 is below the first connecting point 10, and the third connecting point 30 is between the first connecting point 10 and the fourth connecting point 40 in the first direction X.

[0150] In one embodiment, the push rod 2 in the present embodiment is a telescopic structure, specifically an axial telescopic structure. In the folded state, the upper end of the push rod 2 is flush with the first connecting point 10 or is located on the side of the first connecting point 10 towards the fourth connecting point 40, that is, the upper end of the push rod 2 can be below the first connecting point 10, or the upper end of the push rod 2 is not higher than the first connecting point 10, so that the length of the stroller in the first direction X after folding is the length of the frame 1 in the folded state in the first direction X, so that the size of the stroller after folding can be smaller, facilitating storage and transportation.

[0151] Optionally, as shown in Figure 2 , the stroller further comprises a front wheel assembly 4 and a rear wheel assembly 5. The front wheel assembly 4 is arranged on the front lower support 11. The rear wheel assembly 5 is arranged on the rear lower support 12. For example, the front wheel assembly 4 comprises two front wheels, and the rear wheel assembly 5 comprises two rear wheels.

[0152] In the present embodiment, in the folded state, the projections of the front wheel assembly 4 and the rear wheel assembly 5 in the width direction of the frame 1 at least partially overlap, so that the size of the stroller in the second direction Y (which can be understood as the transverse direction) after folding is smaller, facilitating the miniaturization of the stroller after folding.

[0153] It should be noted that the projections of the front wheel assembly 4 and the rear wheel assembly 5 in the width direction of the frame 1 at least partially overlapping can be understood as the projections of the two front wheels and the two rear wheels in the width direction of the frame 1 at least partially overlapping.

[0154] Embodiment Two

[0155] As shown in Figures 14 to 16 , the present embodiment provides a stroller, which is different from the first embodiment in that:

[0156] The specific structure of the limiting structure 3 in the present embodiment is different from that of the limiting structure 3 in the first embodiment. Specifically, the limiting structure 3 in the present embodiment comprises a first connecting part 301 and a second connecting part 302 connected together. The frame 1 can rotate relative to the first connecting part 301, and the second connecting part 302 can slide relative to the push rod 2, so as to realize the change of the position of the limiting structure 3 relative to the push rod 2 during the unfolding and folding of the frame 1.

[0157] In one embodiment, the first connecting part 301 is detachably connected with the frame 1, such that the first connecting part 301 and the frame 1 have a connected state and a separated state, so that the push rod 2 can be located in the first position and the second position. Wherein, when the first connecting part 301 is connected with the frame 1, the push rod 2 is located in the first position; when the first connecting part 301 is separated from the frame 1, the push rod 2 is located in the second position. Wherein, Figure 14 is a schematic view of the first connecting part 301 connected with the frame 1, Figure 15 is a schematic view of the first connecting part 301 separated from the frame 1.

[0158] In other embodiments, the second connecting part 302 is detachably connected with the push rod 2, such that the second connecting part 302 and the push rod 2 have a connected state and a separated state, so that the push rod 2 can be located in the first position and the second position. Wherein, when the second connecting part 302 is connected with the push rod 2, the push rod 2 is located in the first position; when the second connecting part 302 is separated from the push rod 2, the push rod 2 is located in the second position.

[0159] In the present embodiment, the first connecting part 301 is detachably connected with the frame 1, and, please continue to refer to Figure 15 , the second connecting part 302 is provided with a receiving space, and when the push rod 2 is located in the first position, the push rod 2 is located in the receiving space, so that the push rod 2 can be kept in the receiving space.

[0160] Optionally, the receiving space is a sliding groove 3021, and the second connecting part 302 is slidably sleeved on the push rod 2 relative to the push rod 2, so that the limiting structure 3 can slide relative to the push rod 2 in the axial direction of the push rod 2.

[0161] Further optionally, as Figure 15 shown, the first connecting part 301 is provided with a clamping part 3011, which is used for detachable connection with the frame 1. Specifically, the surrounding frame of the frame 1 can be clamped in the clamping part 3011. For example, the clamping part 3011 can be a groove, and the surrounding frame of the frame 1 can be located in the groove and can rotate relative to the groove.

[0162] Illustratively, when using the stroller provided by the present embodiment, the push rod 2 is pushed in the direction close to the frame 1, so that the distance between the frame 1 and the push rod 2 is reduced. Then, the clamping part is aligned with the surrounding frame of the frame 1, and the push rod 2 is pressed with force, so that the surrounding frame is clamped into the clamping part 3011. Then, the frame 1 is folded, and in the process of folding, the frame 1 drives the limiting structure 3 to slide along the axial direction of the push rod 2, that is, the limiting structure 3 slides relative to the push rod 2 through the sliding groove 3021, until the stroller is folded to the state as Figure 16 shown.

[0163] The other structures in the embodiment have similar structures and similar beneficial effects to the corresponding structures in Embodiment One, and will not be described in detail herein.

[0164] Obviously, the above embodiments of the utility model are merely examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A cart, characterized in that, The stroller comprises: a frame, which has an unfolded state and a folded state; a push rod, which is connected to one side of the frame; when the frame is converted between the unfolded state and the folded state, part of the frame moves relative to the push rod along the axis of the push rod.

2. The cart of claim 1, wherein, The stroller further comprises a limiting structure, which is arranged between the push rod and the frame, and when the frame is converted between the unfolded state and the folded state, the frame drives the limiting structure to move relative to the push rod along the axis of the push rod.

3. The cart of claim 1, wherein, The push rod has a first position in which the push rod is close to the frame and a second position in which the push rod is away from the frame, and when the push rod is in the first position, the frame can be converted between the unfolded state and the folded state. The stroller further comprises a limiting structure, which is arranged on the push rod or the frame, and when the limiting structure is connected to the frame or the push rod, the push rod is in the first position; when the limiting structure is disconnected from the frame or the push rod is disconnected from the limiting structure, the push rod is in the second position.

4. The cart of claim 2 or 3, wherein, The limiting structure has a containing space, the push rod is limited in the containing space, and when the frame is converted from the unfolded state to the folded state, the push rod moves relative to the containing space; and / or, when the frame is converted between the unfolded state and the folded state, the frame drives the limiting structure to slide along the axis of the push rod; and / or, when the frame is converted between the unfolded state and the folded state, the frame can rotate relative to the limiting structure; and / or, the limiting structure comprises a first connecting part and a second connecting part connected to each other, the frame can rotate relative to the first connecting part, and the second connecting part can slide relative to the push rod.

5. The cart of claim 4, wherein, The limiting structure comprises a first fixing member and a second fixing member, at least one of the first fixing member and the second fixing member is movably connected to the surrounding frame of the frame and has a closing state and a separated state, in the closing state, the first fixing member and the second fixing member surround to form a containing space, the push rod is limited in the containing space, in the separated state, the push rod is disconnected from the limiting structure; at least one of the first fixing member and the second fixing member movably connected to the part of the surrounding frame of the frame forms the first connecting part, and the part of the first fixing member and the second fixing member surrounding to form the containing space forms the second connecting part; or the limiting structure further comprises a base, the base is movably arranged on the surrounding frame of the frame, the first fixing member and the second fixing member are movably connected to the base and have the closing state and the separated state relative to the base.

6. The cart of claim 4, wherein, The first connecting part is detachably connected to the frame, or the second connecting part is detachably connected to the push rod; the second connecting part is provided with the containing space, the push rod is located in the containing space, and the containing space is a sliding groove; the first connecting part is provided with a clamping part, and the first connecting part is detachably connected to the frame.

7. The cart of claim 1, wherein, In the unfolded state, the frame comprises: a support structure, the push rod being pivotally connected to the support structure; a surrounding frame connected to the support structure; when the frame is converted from the unfolded state to the folded state, the surrounding frame moves along the axis direction of the push rod and approaches the support structure.

8. The cart of claim 7, wherein, The push rod has a first position where the push rod approaches the frame and a second position where the push rod is away from the frame, and when the push rod is in the first position, the frame can be converted between the unfolded state and the folded state. The stroller further comprises a limiting structure provided on the surrounding frame or the push rod, the limiting structure having a fixed state and a separated state, when the limiting structure is in the fixed state, the push rod is limited in the first position, and when the frame is converted from the unfolded state to the folded state, the limiting structure slides along the axis direction of the push rod, and when the limiting structure is in the separated state, the push rod is in the second position.

9. The cart of claim 7, wherein, When the frame is in the folded state, the extending direction of the surrounding frame is substantially parallel to the extending direction of the push rod. The support structure comprises a front lower support member and a rear lower support member, the rear lower support member being pivotally connected to the front lower support member; The surrounding frame comprises a front upper surrounding frame and / or a rear upper surrounding frame; The frame further comprises a connecting structure provided between the support structure and the surrounding frame; When the frame is converted from the unfolded state to the folded state, the rear lower support member and the front lower support member pivotally approach each other around the pivot, the front upper surrounding frame moves to approach the front lower support member, and / or the rear upper surrounding frame moves to approach the rear lower support member, and the front upper surrounding frame and / or the rear upper surrounding frame extends in the up-down direction.

10. The stroller according to claim 9, wherein The push rod is a telescopic structure; The stroller further comprises a front wheel assembly and a rear wheel assembly, the front wheel assembly being provided on the front lower support member, and the rear wheel assembly being provided on the rear lower support member; In the folded state, the projections of the front wheel assembly and the rear wheel assembly in the width direction of the frame at least partially overlap.

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