Trolley

Abstract

The utility model belongs to the technical field of children products, and discloses a cart. The cart comprises a frame, a push handle mechanism, a handle unlocking structure and a rotary unlocking structure. The frame is provided with a frame body, a rotating seat rotationally installed on the frame body and a rotating locking structure, and the rotating locking structure moves on the frame and is used for locking the position relation between the rotating seat and the frame body; the push handle mechanism comprises a push rod rotationally installed on the rotating seat, a handle rotationally connected with the push rod and a handle locking structure used for locking the position relation between the handle and the push rod, and the handle can be folded towards the push rod; the handle unlocking structure is jointed with the push rod so as to unlock the handle locking structure when the push handle mechanism rotates; the rotary unlocking structure is connected with the push rod so as to unlock the rotary locking structure when the push handle mechanism rotates. According to the utility model, the reversing operation of the rotating seat of the baby stroller can be conveniently realized.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, and in particular to a stroller. Background Technology

[0002] Strollers are an essential tool for caring for babies.

[0003] A stroller typically consists of a base assembly, on which a seat assembly and a push handle assembly are mounted. The baby sits in the seat assembly, and the parent pushes the push handle assembly to move the stroller. Sometimes, to make it easier for parents to care for their baby, the seat assembly may need to be rearranged.

[0004] To enable the reversible orientation of the seat assembly, some existing strollers detachably mount the seat assembly onto the base assembly. However, reversing the seat assembly requires disassembling it, reversing it, and then reinstalling it, which is a cumbersome process. Utility Model Content

[0005] The purpose of this invention is to provide a stroller that allows for easy reversal of the swivel seat.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A trolley, comprising:

[0008] A frame has a frame body, a rotating seat rotatably mounted on the frame body, and a rotation locking structure, wherein the rotation locking structure is movable on the frame body and is used to lock the positional relationship between the rotating seat and the frame body;

[0009] The push handle mechanism includes a push rod rotatably mounted on the rotating seat, a handle rotatably connected to the push rod, and a handle locking structure for locking the positional relationship between the handle and the push rod. The handle can be folded towards the push rod.

[0010] A handle unlocking structure engages with the push rod to unlock the handle locking structure when the push handle mechanism is rotated;

[0011] A rotary unlocking structure engages with the push rod to unlock the rotary locking structure when the push handle mechanism is rotated;

[0012] After the push rod rotates at a first angle along a first direction, the push rod drives the rotary unlocking structure to move to unlock the rotary locking structure. After the push rod rotates at a second angle along the first direction, the push rod drives the handle unlocking structure to move to unlock the handle locking structure, wherein the second angle is greater than the first angle.

[0013] Compared with the prior art, the trolley proposed in this utility model has the following advantages:

[0014] When using the stroller, place the seat on the swivel seat and let the child sit in the seat.

[0015] When the seat basket does not need to be reversed, the rotary locking structure locks the rotating seat to the frame. When the seat basket needs to be reversed, the push rod rotates a first angle in the first direction, which drives the rotary unlocking structure to unlock the rotary locking structure. At this time, the rotating seat can be rotated.

[0016] In other words, when the seat needs to be reversed, it does not need to be removed, making it easy to operate.

[0017] Meanwhile, when the folding push handle mechanism is not needed, the handle locking structure can lock the positional relationship between the handle and the push rod; when the folding push handle mechanism is needed, after the push rod rotates at a second angle along the first direction, the push rod drives the handle unlocking structure to unlock the handle locking structure. At this time, the handle can be folded towards the push rod to reduce the space occupied by the cart.

[0018] Furthermore, the second angle is greater than the first angle. This design avoids triggering the handle locking structure when unlocking the rotary locking structure, thus preventing potential safety hazards.

[0019] As a preferred embodiment of the aforementioned trolley, the rotary locking structure includes a rotary locking member movably disposed on the rotary seat. The rotary unlocking structure can drive the rotary locking member to move, so that the rotary locking member is locked or separated from the frame.

[0020] As a preferred embodiment of the above-mentioned trolley, the rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking member. A first driving inclined surface is provided in the first locking groove. The first driving inclined surface can drive the rotary locking member to disengage from the first locking groove, so that the rotary locking member is separated from the frame.

[0021] The rotary locking structure further includes a first reset member disposed on the rotary seat. When the rotary locking member is engaged with the rotary unlocking structure, one end of the first reset member elastically abuts against the rotary seat, and the other end elastically abuts against the rotary locking member. When the rotary locking member is separated from the rotary unlocking structure, the first reset member is compressed and accumulates elastic potential energy.

[0022] As a preferred embodiment of the aforementioned trolley, the handle locking structure includes:

[0023] The handle locking component is movably connected to both the push rod and the handle;

[0024] The first handle locking component driver is movably connected to both the push rod and the handle. The first handle locking component driver cooperates with the handle locking component and can drive the handle locking component to move from the handle locking component locked position to the handle locking component unlocked position. In the handle locking component locked position, the push rod and the handle are locked. In the handle locking component unlocked position, the handle can be moved towards the push rod and folded.

[0025] As a preferred embodiment of the aforementioned trolley, the handle locking structure further includes:

[0026] The second handle locking mechanism drive is movably mounted on the frame.

[0027] The linkage has one end connected to the second handle locking component driver and the other end connected to the first handle locking component driver. The second handle locking component driver can move relative to the frame and drive the first handle locking component driver to move through the linkage, thereby causing the first handle locking component driver to move the handle locking component from the locked position to the unlocked position.

[0028] As a preferred embodiment of the above-mentioned trolley, the handle unlocking structure is provided with a second locking groove that cooperates with the second handle locking member drive. The second locking groove is provided with a second driving slope. The second driving slope can drive the second handle locking member drive to disengage from the second locking groove, so that the second handle locking member drive can move relative to the frame and drive the first handle locking member drive to move through the linkage.

[0029] The handle locking structure also includes a second reset member. One end of the second reset member elastically abuts against the frame, and the other end elastically abuts against the second handle locking member drive member. When the second handle locking member drive member moves to disengage from the second locking groove, the second reset member is compressed by the second handle locking member drive member.

[0030] As a preferred embodiment of the aforementioned trolley, the handle locking structure further includes:

[0031] The first connecting member is fixedly connected to one of the push rod and the handle, and the handle locking member and the first handle locking member driving member are both movably disposed on the first connecting member;

[0032] The second connector is fixedly connected to the other of the push rod and the handle. The second connector is movably connected to the first connector. The handle locking member can be locked to both the first connector and the second connector, and the handle locking member can be unlocked from the second connector alone.

[0033] The handle locking member is provided with a first locking tooth, the first connecting member is provided with a second locking tooth, and the second connecting member is provided with a third locking tooth. The first locking tooth can lock simultaneously with the second locking tooth and the third locking tooth, and the first locking tooth can disengage from the third locking tooth while remaining locked with the second locking tooth.

[0034] As a preferred embodiment of the aforementioned trolley, the rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking structure, and the handle unlocking structure is provided with a second locking groove that cooperates with the handle locking structure. After the first locking groove rotates by the push rod along the first direction at the first angle, the rotary locking structure is unlocked by the first locking groove. After the second locking groove rotates by the push rod along the first direction at the second angle, the handle locking structure is unlocked by the second locking groove.

[0035] To achieve this objective, the present invention may also adopt the following technical solutions:

[0036] A trolley, comprising:

[0037] A frame has a frame body, a rotating seat rotatably mounted on the frame body, and a rotation locking structure, wherein the rotation locking structure is movable on the frame body and is used to lock the positional relationship between the rotating seat and the frame body;

[0038] The push handle mechanism includes a push rod rotatably mounted on the rotating seat, a handle rotatably connected to the push rod, and a handle locking structure for locking the positional relationship between the handle and the push rod. The handle can be folded towards the push rod.

[0039] A handle unlocking structure engages with the push rod to unlock the handle locking structure when the push handle mechanism is rotated;

[0040] A rotary unlocking structure engages with the push rod to unlock the rotary locking structure when the push handle mechanism is rotated;

[0041] After the push rod rotates in the first direction, the push rod drives the rotary unlocking structure to move to unlock the rotary locking structure. After the push rod rotates in the second direction, the push rod drives the handle unlocking structure to move to unlock the handle locking structure. The first direction and the second direction are opposite directions.

[0042] Compared with the prior art, the trolley proposed in this utility model has the following advantages:

[0043] When using the stroller, place the seat on the swivel seat and let the child sit in the seat.

[0044] When the seat basket does not need to be reversed, the rotary locking mechanism locks the rotating seat to the frame. When the seat basket needs to be reversed, the push rod rotates in the first direction, which drives the rotary unlocking mechanism to unlock the rotary locking mechanism. At this time, the rotating seat can be rotated.

[0045] In other words, when the seat needs to be reversed, it does not need to be removed, making it easy to operate.

[0046] Meanwhile, when the folding push handle mechanism is not needed, the handle locking structure can lock the positional relationship between the handle and the push rod; when the folding push handle mechanism is needed, after the push rod rotates in the second direction, the push rod drives the handle unlocking structure to unlock the handle locking structure. At this time, the handle can be folded towards the push rod to reduce the space occupied by the cart.

[0047] The direction of the push rod when reversing the seat pocket is different from the direction of the push rod when folding the push handle mechanism, so as to avoid triggering the handle locking mechanism when unlocking the rotation locking mechanism and causing safety hazards.

[0048] As a preferred embodiment of the aforementioned trolley, the rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking structure, and the handle unlocking structure is provided with a second locking groove that cooperates with the handle locking structure. After the first locking groove rotates with the push rod in the first direction, the rotary locking structure is unlocked by the first locking groove, and after the second locking groove rotates with the push rod in the second direction, the handle locking structure is unlocked by the second locking groove. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the trolley's rotating seat in the positive orientation according to an embodiment of the present invention;

[0051] Figure 2 yes Figure 1 A diagram from another perspective;

[0052] Figure 3 This is a schematic diagram of the trolley's rotating seat in the reverse direction according to an embodiment of the present invention;

[0053] Figure 4 yes Figure 3 A diagram from another perspective;

[0054] Figure 5 This is a schematic diagram of the push handle mechanism provided in this embodiment of the utility model being mounted on a rotating base;

[0055] Figure 6 This is a schematic diagram showing that the rotating locking component and the second handle locking component driving component provided in this embodiment of the utility model are both installed in the mounting shell;

[0056] Figure 7 yes Figure 6 A schematic diagram of the decomposed structure;

[0057] Figure 8 This is a schematic diagram of the push handle mechanism provided in this embodiment of the utility model, where both the handle unlocking structure and the rotary unlocking structure are provided.

[0058] Figure 9 yes Figure 8 Enlarged view of part of the structure;

[0059] Figure 10 This is a top view of the frame provided in this embodiment of the utility model;

[0060] Figure 11 yes Figure 10 Enlarged view of point A in the middle;

[0061] Figure 12 This is a schematic diagram of the rotating locking structure provided in this embodiment of the present invention locking the frame and the rotating base;

[0062] Figure 13 yes Figure 12 Enlarged view of point B in the middle;

[0063] Figure 14 This is a schematic diagram of the rotating locking structure provided in this embodiment of the present invention when the frame and the rotating base are unlocked;

[0064] Figure 15 yes Figure 14 Enlarged view of point C in the middle;

[0065] Figure 16 This is a schematic diagram of the push handle mechanism provided in this embodiment of the present invention in the unfolded state;

[0066] Figure 17 This is a schematic diagram of the push handle mechanism provided in this embodiment of the present invention in a folded state;

[0067] Figure 18 This is a schematic diagram of the handle locking structure provided in this embodiment of the present invention in the locked state;

[0068] Figure 19 This is a schematic diagram of the handle locking structure provided in this embodiment of the present invention in the unlocked state;

[0069] Figure 20 This is an exploded view of the handle locking structure provided in an embodiment of the present invention.

[0070] In the picture:

[0071] 1. Frame; 11. Frame body; 111. Rotary lock groove; 12. Rotary seat; 13. Rotary locking structure; 131. Rotary locking component; 1311. Horizontal shaft; 1312. Vertical shaft; 132. First reset component; 133. Mounting shell; 1331. Guide groove;

[0072] 2. Push handle mechanism; 21. Push rod; 22. Handle; 23. Handle locking structure; 231. Handle locking component; 2311. First locking tooth; 232. First handle locking component drive component; 2321. Third drive ramp; 233. Second handle locking component drive component; 234. First connecting component; 2341. Guide shaft; 235. Second connecting component; 2351. Fourth drive ramp;

[0073] 3. Handle unlocking structure; 31. Second locking groove; 311. Second driving inclined surface; 312. Limiting surface;

[0074] 4. Rotary unlocking structure; 41. First locking groove; 411. First driving inclined surface; 42. Abutting end face;

[0075] 5. Seat. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0077] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0078] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0079] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0080] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0083] Example 1

[0084] See Figures 1-4 This embodiment provides a trolley.

[0085] Specifically, the stroller is a children's stroller.

[0086] Specifically, see Figures 1-10In this embodiment, the trolley includes a frame 1, a push handle mechanism 2, a handle unlocking structure 3, and a rotation unlocking structure 4.

[0087] Among them, see Figure 1 and Figure 5 The frame 1 has a frame body 11, a rotating seat 12 rotatably mounted on the frame body 11, and a rotation locking structure 13. The rotation locking structure 13 is movable on the frame 1 and is used to lock the positional relationship between the rotating seat 12 and the frame body 11.

[0088] See Figure 1 , Figure 16 and Figure 17 The push handle mechanism 2 includes a push rod 21 rotatably mounted on the rotating seat 12, a handle 22 rotatably connected to the push rod 21, and a handle locking structure 23 for locking the positional relationship between the handle 22 and the push rod 21. The handle 22 can be folded towards the push rod 21.

[0089] See Figure 8 and Figure 9 The handle unlocking structure 3 engages with the push rod 21 to unlock the handle locking structure 23 when the push handle mechanism 2 is rotated.

[0090] See Figure 8 and Figure 9 The rotary unlocking structure 4 engages with the push rod 21 to unlock the rotary locking structure 13 when the push handle mechanism 2 rotates.

[0091] After the push rod 21 rotates at a first angle along the first direction, the push rod 21 drives the rotary unlocking structure 4 to move to unlock the rotary locking structure 13. After the push rod 21 rotates at a second angle along the first direction, the push rod 21 drives the handle unlocking structure 3 to move to unlock the handle locking structure 23. The second angle is greater than the first angle.

[0092] Specifically, the first direction is Figure 8 and Figure 9 The first direction is shown. More specifically, the first direction is the clockwise direction.

[0093] In this embodiment, the stroller is used with the seat 5 placed on the rotating seat 12, and the child sits on the seat 5.

[0094] When the seat pocket 5 does not need to be reversed, the rotary locking structure 13 locks the rotating seat 12 and the frame 11. When the seat pocket 5 needs to be reversed, the push rod 21 rotates at a first angle in the first direction, and the push rod 21 drives the rotary unlocking structure 4 to move to unlock the rotary locking structure 13. At this time, the rotating seat 12 can be rotated.

[0095] In other words, when it is necessary to change the direction of the seat 5, it is not necessary to remove the seat 5, which is convenient to operate.

[0096] Meanwhile, when the folding push handle mechanism 2 is not needed, the handle locking structure 23 can lock the positional relationship between the handle 22 and the push rod 21. When the folding push handle mechanism 2 is needed, after the push rod 21 rotates at a second angle along the first direction, the push rod 21 drives the handle unlocking structure 3 to move to unlock the handle locking structure 23. At this time, the handle 22 can be folded towards the push rod 21 to reduce the space occupied by the cart.

[0097] Furthermore, the second angle is greater than the first angle. This design avoids triggering the handle locking structure 23 when unlocking the rotation locking structure 13, thus preventing potential safety hazards.

[0098] Specifically, the rotary unlocking structure 4 is provided with a first locking groove 41 that cooperates with the rotary locking structure 13, and the handle unlocking structure 3 is provided with a second locking groove 31 that cooperates with the handle locking structure 23. After the first locking groove 41 rotates by a first angle along the first direction with the push rod 21, the rotary locking structure 13 is unlocked by the first locking groove 41. After the second locking groove 31 rotates by a second angle along the first direction with the push rod 21, the handle locking structure 23 is unlocked by the second locking groove 31.

[0099] Specifically, see Figure 9 In this embodiment, the rotary unlocking structure 4 and the handle unlocking structure 3 are coaxially arranged on the rotation axis of the push rod 21. Figure 9 Taking the orientation shown as an example, the upper surface of the first locking groove 41 does not exceed the upper surface of the second locking groove 31, and the lower surface of the first locking groove 41 does not exceed the lower surface of the second locking groove 31.

[0100] Specifically, see Figures 5-9 The rotary locking structure 13 includes a rotary locking member 131 movably disposed on the rotary seat 12. The rotary unlocking structure 4 can drive the rotary locking member 131 to move so that the rotary locking member 131 is locked or separated from the frame 11.

[0101] Further, see Figure 9 The rotating unlocking structure 4 is provided with a first locking groove 41 that cooperates with the rotating locking member 131. A first driving inclined surface 411 is provided in the first locking groove 41. The first driving inclined surface 411 can drive the rotating locking member 131 to disengage from the first locking groove 41, so that the rotating locking member 131 is separated from the frame 11.

[0102] Furthermore, in order to achieve automatic reset of the rotating locking member 131, the rotating locking structure 13 also includes a first reset member 132 disposed on the rotating seat 12. When the rotating locking member 131 is engaged with the rotating unlocking structure 4, one end of the first reset member 132 elastically abuts against the frame 11, and the other end elastically abuts against the rotating locking member 131. When the rotating locking member 131 is separated from the rotating unlocking structure 4, the first reset member 132 is compressed and accumulates elastic potential energy.

[0103] Specifically, see Figure 10 and Figure 11 The frame 11 is provided with a rotating locking groove 111 that cooperates with the rotating locking member 131. The rotating locking member 131 is movable relative to the rotating seat 12 and can be locked or separated from the rotating locking groove 111, thereby realizing the locking or separation of the rotating locking member 131 from the frame 11.

[0104] Further, see Figure 7 In this embodiment, the rotating locking member 131 includes a horizontal shaft 1311 that cooperates with the rotating unlocking structure 4 and a vertical shaft 1312 that cooperates with the rotating locking groove 111. The horizontal shaft 1311 and the vertical shaft 1312 are arranged at an angle.

[0105] Specifically, the cross-sectional shape and size of the rotary locking groove 111 are adapted to the vertical shaft 1312, and the side opening of the rotary locking groove 111 facilitates the locking or disengagement of the rotary locking member 131 with the rotary locking groove 111.

[0106] For example, when it is not necessary to reverse the seat 5, see Figure 12 and Figure 13 At this time, the rotating locking member 131 is locked with the first locking groove 41 and the rotating locking groove 111, and the rotating seat 12 cannot rotate relative to the frame 11. Specifically, at this time, the horizontal axis 1311 is locked with the first locking groove 41, and the vertical axis 1312 is locked with the rotating locking groove 111.

[0107] For example, when it is necessary to reverse the direction of the seat 5, see Figure 14 and Figure 15 After the push rod 21 rotates at a first angle along the first direction, the push rod 21 drives the rotary unlocking structure 4 to rotate. During the rotation, the first driving inclined surface 411 drives the horizontal axis 1311 of the rotary locking member 131 to move to the left until it disengages from the first locking groove 41. At this time, the vertical axis 1312 of the rotary locking member 131 also disengages from the rotary locking groove 111.

[0108] Specifically, see Figure 13 When the rotating locking member 131 is locked with the first locking groove 41 and the rotating locking groove 111, the free end of the horizontal shaft 1311 is locked in the first locking groove 41, and the free end of the horizontal shaft 1311 abuts against the first driving inclined surface 411; the free end of the vertical shaft 1312 is locked in the rotating locking groove 111. At this time, the first reset member 132 is in a compressed state, and the first reset member 132 can apply force to the rotating locking member 131. Figure 13 The force applied to the right, as shown, allows the rotary locking member 131 to be stably locked with the first locking groove 41 and the rotary locking groove 111.

[0109] Specifically, when push rod 21 along Figure 9 When rotating in the first direction as shown, push rod 21 moves from the first position to the second position. Under the driving action of the first driving inclined surface 411, the free end of the horizontal shaft 1311 gradually disengages from the first locking groove 41 and finally abuts against the abutting end face 42 of the rotary unlocking structure 4. At the same time, the vertical shaft 1312 also moves along... Figure 15 The left side moves and disengages from the first locking groove 41, and finally the rotating locking member 131 moves to... Figure 15 At the position shown, the rotating locking member 131 is unlocked from the first locking groove 41 and the rotating locking groove 111; the first reset member 132 is further compressed, which can apply pressure to the vertical axis 1312 of the rotating locking member 131. Figure 15 The force shown is directed to the right.

[0110] When it is necessary to switch the rotating locking member 131 to the locked position again, the push rod 21 is rotated in the second direction opposite to the first direction. The push rod 21 moves from the second position to the first position. When the free end of the horizontal shaft 1311 rotates to disengage from the abutment end face 42 and is opposite to the first locking groove 41, under the elastic force of the first reset member 132, the free end of the horizontal shaft 1311 will re-enter the first locking groove 41. As the push rod 21 continues to rotate in the second clockwise direction, the free end of the horizontal shaft 1311 gradually enters the first locking groove 41 along the first driving inclined surface 411 and finally switches to the locked position.

[0111] Optionally, in this embodiment, the first direction is the direction in which the push rod 21 is rotated forward.

[0112] Further, see Figures 16-20 In this embodiment, the handle locking structure 23 includes a handle locking member 231 and a first handle locking member drive member 232.

[0113] The handle locking component 231 is movably connected to both the push rod 21 and the handle 22.

[0114] The first handle locking member drive 232 is movably connected to the push rod 21 and the handle 22. The first handle locking member drive 232 cooperates with the handle locking member 231 and can drive the handle locking member 231 from the handle locking member locked position to the handle locking member unlocked position. In the handle locking member locked position, the push rod 21 and the handle 22 are locked. In the handle locking member unlocked position, the handle 22 can move towards the push rod 21 and fold.

[0115] Further, see Figures 6-9 The handle locking structure 23 also includes a second handle locking member drive 233 and a linkage member (not shown in the figure), with the second handle locking member drive 233 movably mounted on the frame 11.

[0116] One end of the linkage is connected to the second handle locking member drive 233, and the other end is connected to the first handle locking member drive 232. The second handle locking member drive 233 can move relative to the frame 11 and drive the first handle locking member drive 232 to move through the linkage, thereby causing the first handle locking member drive 232 to drive the handle locking member 231 from the handle locking member locked position to the handle locking member unlocked position.

[0117] Optionally, the linkage is a traction cable.

[0118] Further, see Figure 9 The handle unlocking structure 3 is provided with a second locking groove 31 that cooperates with the second handle locking member drive 233. The second locking groove 31 is provided with a second driving inclined surface 311. The second driving inclined surface 311 can drive the second handle locking member drive 233 to disengage from the second locking groove 31, so that the second handle locking member drive 233 moves relative to the frame 11 and drives the first handle locking member drive 232 to move through the linkage.

[0119] Specifically, see Figure 9 One inner surface of the second locking groove 31 is a second driving ramp 311, and the other inner surface is a limiting surface 312. In the initial state, the second handle locking member drive 233 abuts against the limiting surface 312. When the push rod 21 rotates a second angle along the first direction, the second driving ramp 311 drives the second handle locking member drive 233 to disengage from the second locking groove 31.

[0120] Furthermore, in order to achieve automatic reset of the second handle locking member drive 233, the handle locking structure 23 also includes a second reset member. One end of the second reset member is elastically abutted against the frame 11, and the other end is elastically abutted against the second handle locking member drive 233. When the second handle locking member drive 233 moves to disengage from the second locking groove 31, the second reset member is compressed by the second handle locking member drive 233.

[0121] Further, see Figures 16-20 The handle locking structure 23 also includes a first connector 234 and a second connector 235.

[0122] The first connector 234 is fixedly connected to one of the push rod 21 and the handle 22, and the handle locking member 231 and the first handle locking member drive member 232 are both movably disposed on the first connector 234.

[0123] The second connector 235 is fixedly connected to the other of the push rod 21 and the handle 22. The second connector 235 is movably connected to the first connector 234. The handle locking member 231 can be locked with both the first connector 234 and the second connector 235, and the handle locking member 231 can be unlocked separately from the second connector 235.

[0124] Furthermore, in this embodiment, a guide shaft 2341 is provided on the first connector 234, and both the handle locking member 231 and the first handle locking member drive member 232 can be slidably sleeved on the guide shaft 2341.

[0125] Specifically, the second handlebar locking member drive 233 can drive the first handlebar locking member drive 232 to move along the guide shaft 2341 via the linkage member, thereby causing the first handlebar locking member drive 232 to drive the handlebar locking member 231 to slide along the guide shaft 2341, so that the handlebar locking member 231 can move from... Figure 18 The lock state shown has been switched to Figure 19 The unlocked state is shown.

[0126] Furthermore, in order to enable the first handle locking member drive 232 to drive the handle locking member 231 to slide along the guide shaft 2341, the first handle locking member drive 232 is provided with a third drive inclined surface 2321, and the second connecting member 235 is provided with a fourth drive inclined surface 2351 that cooperates with the third drive inclined surface 2321.

[0127] The second handlebar locking actuator 233 drives the first handlebar locking actuator 232 to rotate along the guide shaft 2341 via a linkage. During this rotation, the fourth drive inclined surface 2351 engages with the third drive inclined surface 2321, causing the first handlebar locking actuator 232 to move towards the first connecting member 234. In this process, the first handlebar locking actuator 232 pushes the handlebar locking member 231 towards the first connecting member 234, causing the handlebar locking member 231 to... Figure 18 The lock state shown has been switched to Figure 19 The unlocked state is shown.

[0128] Furthermore, in order to save space, a groove is provided on the first handle locking drive member 232, and the third drive inclined surface 2321 is the inner surface of the groove; a protrusion adapted to the groove is provided on the second connector 235, and the fourth drive inclined surface 2351 is located on the protrusion.

[0129] Furthermore, in order to enable the handle locking element 231 to... Figure 19 The unlocked state shown has been reset to Figure 18 In the locked state shown, the trolley also includes a third reset member, which is elastically clamped between the first connector 234 and the handle locking member 231. When the handle locking member 231 is in the unlocked state, the third reset member is compressed and stores elastic potential energy.

[0130] Optionally, the third reset element is a compression spring.

[0131] Further, see Figure 20The handle locking member 231 is provided with a first locking tooth 2311, the first connecting member 234 is provided with a second locking tooth, and the second connecting member 235 is provided with a third locking tooth. The first locking tooth 2311 can lock simultaneously with the second locking tooth and the third locking tooth, and the first locking tooth 2311 can disengage from the third locking tooth while remaining locked with the second locking tooth.

[0132] Specifically, in Figure 19 In the unlocked state shown, the first locking tooth 2311 disengages from the third locking tooth but remains locked to the second locking tooth. Figure 18 The locking state shown indicates that the first locking tooth 2311 is locked simultaneously with the second and third locking teeth.

[0133] Furthermore, to facilitate the assembly of the trolley, in this embodiment, the trolley also includes a mounting shell 133, on which a guide groove 1331 is provided, and a rotating locking member 131 is slidably disposed in the guide groove 1331; at the same time, a handle locking member 231 is also slidably disposed in the guide groove 1331.

[0134] Understandably, a partition is provided in the guide groove 1331 to separate the rotary locking member 131 and the handle locking member 231, so as to avoid interference between the two.

[0135] The mounting housing 133 is fixedly mounted on the lower surface of the rotating base 12. The first reset member 132 and the second reset member are also both disposed in the guide groove 1331.

[0136] Furthermore, in this embodiment, both the first reset member 132 and the second reset member are compression springs.

[0137] For example, in this embodiment, during the process of switching the push handle mechanism 2 from the unfolded state to the folded state, the operation of the handle unlocking structure 3 and the handle locking structure 23 is as follows:

[0138] The push rod 21 rotates in the first direction so that the handle unlocking structure 3 rotates from the first position to the third position (the second position is between the first position and the third position); during this process, the handle locking member 231 switches from the state of abutting against the limiting surface 312 to the state of abutting against the second driving inclined surface 311.

[0139] As the push rod 21 continues to rotate in the first direction, under the driving action of the second driving inclined surface 311, the second handle locking member drive 233 retracts relative to the guide groove 1331. During the retraction process, the second handle locking member drive 233 pulls the first handle locking member drive 232 around the guide shaft 2341 through the linkage. During the rotation of the first handle locking member drive 232 around the guide shaft 2341, under the cooperation of the third driving inclined surface 2321 and the fourth driving inclined surface 2351, the first handle locking member drive 232 pushes the handle locking member 231 along the axial direction of the guide shaft 2341, so that the first locking tooth 2311 disengages from the third locking tooth and remains locked with the second locking tooth. At this time, the handle locking member 231 moves to the unlocked position, and the first connecting member 234 and the second connecting member 235 can rotate relative to each other, so that the push rod 21 and the handle 22 can be folded relative to each other.

[0140] For example, in this embodiment, during the process of switching the push handle mechanism 2 from the folded state to the unfolded state, the operation of the handle unlocking structure 3 and the handle locking structure 23 is as follows:

[0141] The handle 22 rotates relative to the push rod 21 so that the handle 22 opens relative to the push rod 21. Under the elastic restoring force of the third reset member, the handle locking member 231 gradually pushes the first handle locking member drive member 232 to move along the guide shaft 2341 toward the second connector 235. During this process, the third drive inclined surface 2321 gradually rotates to a state where it is in contact with the fourth drive inclined surface 2351 again, until the handle locking member 231 switches from the unlocked position to the locked position.

[0142] During the process of switching the handle locking member 231 from the unlocked position to the locked position, the first handle locking member drive member 232 moves along the guide shaft 2341 toward the second connector 235. At the same time, the traction cable switches from the original tensioned state to the slack state. Under the action of the elastic restoring force of the second reset member, the second handle locking member drive member 233 gradually enters the second locking groove 31 along the second drive inclined surface 311. When the second handle locking member drive member 233 is fully entered into the second locking groove 31, the traction cable switches from the slack state back to the tensioned state.

[0143] For example, taking a stroller as an example, see Figures 1-4 The operation of this child product when turning the seat 5 is as follows:

[0144] Rotate the push handle mechanism 2 forward by a first angle, so that the push rod 21 drives the rotary unlocking structure 4 to rotate from the first position to the second position, and the rotary locking component 131 switches from the locked position to the unlocked position;

[0145] Rotate the push handle mechanism 2 to change the orientation of the rotating seat 12, thereby changing the orientation of the seat 5;

[0146] Rotate the push handle mechanism 2 in the opposite direction by a first angle, causing the rotary unlocking structure 4 to switch from the second position to the first position, and the rotary locking member 131 to switch from the unlocked position to the locked position, locking the rotating base 12 relative to the frame 11; at this time, the children's products... Figure 1 and Figure 2 The status shown has switched to Figure 3 and Figure 4 The state shown.

[0147] For example, taking a stroller as an example, see Figure 16 and Figure 17 The operation of switching the push handle mechanism 2 from the unfolded state to the folded state is as follows:

[0148] Rotate the push handle mechanism 2 forward by a second angle (the second angle is greater than the first angle, and after the rotation is completed, the push handle mechanism 2 is roughly horizontal), so that the push rod 21 drives the handle unlocking structure 3 to switch from the locked position to the unlocked position;

[0149] Fold the handle 22 of the push handle mechanism 2 backward, so that the push handle mechanism 2 is presented as follows: Figure 17 The folded state shown.

[0150] Example 2

[0151] This embodiment provides a trolley, wherein the same or corresponding parts as in Embodiment 1 are labeled with the same reference numerals as in Embodiment 1.

[0152] Specifically, in this embodiment, the trolley includes a frame 1, a push handle mechanism 2, a handle unlocking structure 3, and a rotation unlocking structure 4.

[0153] The frame 1 has a frame body 11, a rotating seat 12 rotatably mounted on the frame body 11, and a rotation locking structure 13. The rotation locking structure 13 is movable on the frame 1 and is used to lock the positional relationship between the rotating seat 12 and the frame body 11.

[0154] The push handle mechanism 2 includes a push rod 21 rotatably mounted on the rotating seat 12, a handle 22 rotatably connected to the push rod 21, and a handle locking structure 23 for locking the positional relationship between the handle 22 and the push rod 21. The handle 22 can be folded towards the push rod 21.

[0155] The handle unlocking structure 3 engages with the push rod 21 to unlock the handle locking structure 23 when the push handle mechanism 2 is rotated.

[0156] The rotary unlocking structure 4 engages with the push rod 21 to unlock the rotary locking structure 13 when the push handle mechanism 2 is rotated.

[0157] After the push rod 21 rotates in the first direction, the push rod 21 drives the rotary unlocking structure 4 to move to unlock the rotary locking structure 13. After the push rod 21 rotates in the second direction, the push rod 21 drives the handle unlocking structure 3 to move to unlock the handle locking structure 23. The first direction and the second direction are opposite directions.

[0158] In this embodiment, the stroller is used with the seat 5 placed on the rotating seat 12, and the child sits on the seat 5.

[0159] When the seat pocket 5 does not need to be reversed, the rotary locking structure 13 locks the rotating seat 12 and the frame 11. When the seat pocket 5 needs to be reversed, the push rod 21 rotates in the first direction, and the push rod 21 drives the rotary unlocking structure 4 to move to unlock the rotary locking structure 13. At this time, the rotating seat 12 can be rotated.

[0160] In other words, when it is necessary to change the direction of the seat 5, it is not necessary to remove the seat 5, which is convenient to operate.

[0161] Meanwhile, when the folding push handle mechanism 2 is not needed, the handle locking structure 23 can lock the positional relationship between the handle 22 and the push rod 21. When the folding push handle mechanism 2 is needed, after the push rod 21 rotates in the second direction, the push rod 21 drives the handle unlocking structure 3 to move to unlock the handle locking structure 23. At this time, the handle 22 can be folded towards the push rod 21 to reduce the space occupied by the cart.

[0162] The direction of rotating the push rod 21 when reversing the seat pocket 5 is different from the direction of rotating the push rod 21 when folding the push handle mechanism 2, so as to avoid triggering the handle locking structure 23 when unlocking the rotation locking structure 13 and causing safety hazards.

[0163] Furthermore, in this embodiment, the rotary unlocking structure 4 is provided with a first locking groove 41 that cooperates with the rotary locking structure 13, and the handle unlocking structure 3 is provided with a second locking groove 31 that cooperates with the handle locking structure 23. After the first locking groove 41 rotates along the first direction with the push rod 21, the rotary locking structure 13 is unlocked by the first locking groove 41. After the second locking groove 31 rotates along the second direction with the push rod 21, the handle locking structure 23 is unlocked by the second locking groove 31.

[0164] The rotary unlocking structure 4 and the handle unlocking structure 3 are coaxially arranged on the rotation axis of the push rod 21. Along the circumference of the push rod 21, the first locking groove 41 and the second locking groove 31 extend in opposite directions.

[0165] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A trolley, characterized in that, include: A frame has a frame body, a rotating seat rotatably mounted on the frame body, and a rotation locking structure, wherein the rotation locking structure is movable on the frame body and is used to lock the positional relationship between the rotating seat and the frame body; The push handle mechanism includes a push rod rotatably mounted on the rotating seat, a handle rotatably connected to the push rod, and a handle locking structure for locking the positional relationship between the handle and the push rod. The handle can be folded towards the push rod. A handle unlocking structure engages with the push rod to unlock the handle locking structure when the push handle mechanism is rotated; A rotary unlocking structure engages with the push rod to unlock the rotary locking structure when the push handle mechanism is rotated; After the push rod rotates at a first angle along a first direction, the push rod drives the rotary unlocking structure to move to unlock the rotary locking structure. After the push rod rotates at a second angle along the first direction, the push rod drives the handle unlocking structure to move to unlock the handle locking structure, wherein the second angle is greater than the first angle.

2. The trolley according to claim 1, characterized in that, The rotary locking structure includes a rotary locking member movably disposed on the rotary seat. The rotary unlocking structure can drive the rotary locking member to move so that the rotary locking member is locked or separated from the frame.

3. The trolley according to claim 2, characterized in that, The rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking member. A first driving inclined surface is provided in the first locking groove. The first driving inclined surface can drive the rotary locking member to disengage from the first locking groove, so that the rotary locking member is separated from the frame. The rotary locking structure further includes a first reset member disposed on the rotary seat. When the rotary locking member is engaged with the rotary unlocking structure, one end of the first reset member elastically abuts against the rotary seat, and the other end elastically abuts against the rotary locking member. When the rotary locking member separates from the rotary unlocking structure, the first reset member is compressed and accumulates elastic potential energy.

4. The trolley according to claim 1, characterized in that, The handle locking structure includes: The handle locking component is movably connected to both the push rod and the handle; The first handle locking component driver is movably connected to both the push rod and the handle. The first handle locking component driver cooperates with the handle locking component and can drive the handle locking component to move from the handle locking component locked position to the handle locking component unlocked position. In the handle locking component locked position, the push rod and the handle are locked. In the handle locking component unlocked position, the handle can be moved towards the push rod and folded.

5. The trolley according to claim 4, characterized in that, The handle locking structure also includes: The second handle locking mechanism drive is movably mounted on the frame. The linkage has one end connected to the second handle locking component driver and the other end connected to the first handle locking component driver. The second handle locking component driver can move relative to the frame and drive the first handle locking component driver to move through the linkage, thereby causing the first handle locking component driver to move the handle locking component from the locked position to the unlocked position.

6. The trolley according to claim 5, characterized in that, The handle unlocking structure is provided with a second locking groove that cooperates with the second handle locking member drive. A second driving slope is provided in the second locking groove. The second driving slope can drive the second handle locking member drive to disengage from the second locking groove, so that the second handle locking member drive can move relative to the frame and drive the first handle locking member drive to move through the linkage. The handle locking structure also includes a second reset member. One end of the second reset member elastically abuts against the frame, and the other end elastically abuts against the second handle locking member drive member. When the second handle locking member drive member moves to disengage from the second locking groove, the second reset member is compressed by the second handle locking member drive member.

7. The trolley according to claim 4, characterized in that, The handle locking structure also includes: The first connecting member is fixedly connected to one of the push rod and the handle, and the handle locking member and the first handle locking member driving member are both movably disposed on the first connecting member; The second connector is fixedly connected to the other of the push rod and the handle. The second connector is movably connected to the first connector. The handle locking member can be locked to both the first connector and the second connector, and the handle locking member can be unlocked from the second connector alone. The handle locking member is provided with a first locking tooth, the first connecting member is provided with a second locking tooth, and the second connecting member is provided with a third locking tooth. The first locking tooth can lock simultaneously with the second locking tooth and the third locking tooth, and the first locking tooth can disengage from the third locking tooth while remaining locked with the second locking tooth.

8. The stroller according to any one of claims 1-7, characterized in that, The rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking structure, and the handle unlocking structure is provided with a second locking groove that cooperates with the handle locking structure. After the first locking groove rotates by the push rod along the first direction by the first angle, the rotary locking structure is unlocked by the first locking groove. After the second locking groove rotates by the push rod along the first direction by the second angle, the handle locking structure is unlocked by the second locking groove.

9. A trolley, characterized in that, include: A frame has a frame body, a rotating seat rotatably mounted on the frame body, and a rotation locking structure, wherein the rotation locking structure is movable on the frame body and is used to lock the positional relationship between the rotating seat and the frame body; The push handle mechanism includes a push rod rotatably mounted on the rotating seat, a handle rotatably connected to the push rod, and a handle locking structure for locking the positional relationship between the handle and the push rod. The handle can be folded towards the push rod. A handle unlocking structure engages with the push rod to unlock the handle locking structure when the push handle mechanism is rotated; A rotary unlocking structure engages with the push rod to unlock the rotary locking structure when the push handle mechanism is rotated; After the push rod rotates in the first direction, the push rod drives the rotary unlocking structure to move to unlock the rotary locking structure. After the push rod rotates in the second direction, the push rod drives the handle unlocking structure to move to unlock the handle locking structure. The first direction and the second direction are opposite directions.

10. The trolley according to claim 9, characterized in that, The rotary unlocking structure is provided with a first locking groove that cooperates with the rotary locking structure, and the handle unlocking structure is provided with a second locking groove that cooperates with the handle locking structure. After the first locking groove rotates with the push rod in the first direction, the rotary locking structure is unlocked by the first locking groove, and after the second locking groove rotates with the push rod in the second direction, the handle locking structure is unlocked by the second locking groove.

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