A stroller capable of being unlocked conveniently

Abstract

This invention relates to the field of strollers, specifically to a stroller with convenient unlocking capabilities, comprising a frame assembly, a seat assembly, and an unlocking assembly. The frame assembly includes a push handle structure, a front support structure, a rear support structure, and a locking element. The locking element is used to relatively fix at least two of the push handle structure, the front support structure, and the rear support structure in a locked position, and the locking element is movable along the width direction of the frame assembly to switch between a locked position and an unlocked position. The seat assembly includes a seat plate and a footrest connected together. The unlocking assembly includes a driving element and a driven element that are connected by a transmission. The driving element is movably mounted at the bottom end of the seat plate or the bottom end of the footrest, and the driven element is used to move the locking element from the locked position to the unlocked position under the action of the driving element. The driving element is equipped with an anti-accidental activation structure. By integrating the driving element into the seat assembly, the overall user experience of the stroller is improved.

Description

Technical Field

[0001] This invention relates to the field of stroller technology, and more specifically to a stroller that can be easily unlocked. Background Technology

[0002] Existing strollers mainly consist of a frame structure and a seat structure. The frame structure is equipped with a locking mechanism, which is used to lock and fix the push handle assembly, front support assembly, and rear support assembly (all three of which belong to the frame structure) together, thereby achieving positioning and fixation of the stroller in the unfolded state and ensuring the safety of the stroller during use.

[0003] All existing children's strollers are equipped with an unlocking mechanism that works in conjunction with the locking mechanism. The conventional design in the industry is to integrate the unlocking mechanism into the push handle assembly. Users can release the locking state between the components in the frame structure by operating the unlocking part on the push handle assembly, so that the stroller can be folded and stored.

[0004] Analysis revealed several flaws in the existing unlocking mechanism's arrangement: From a usage perspective, when supervising children, users are often positioned near the seat assembly (e.g., the side of the stroller), but the unlocking mechanism is located at the push handle, preventing users from easily unlocking the stroller and reducing its flexibility. Furthermore, when folding the stroller, users typically need to be at the side to apply force, but they must first move to the push handle to unlock and then return to the side to fold, making the process cumbersome and reducing ease of use.

[0005] In view of this, how to overcome the shortcomings of the existing technology has become the subject of study and solution of this invention. Summary of the Invention

[0006] The purpose of this invention is to provide a stroller that can be easily unlocked.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A stroller that can be easily unlocked includes a frame assembly, a seat assembly, and an unlocking assembly;

[0009] The frame assembly includes a push handle structure, a front support structure, a rear support structure, and a locking member. The locking member is used to fix at least two of the push handle structure, the front support structure, and the rear support structure relative to each other in a locked position, and the locking member is movable along the width direction of the frame assembly to switch between a locked position and an unlocked position.

[0010] The seat assembly includes a seat plate and a pedal connected together;

[0011] The unlocking component includes a driving member and a driven member that are connected by a transmission; the driving member is movably mounted on the bottom end of the seat plate or the bottom end of the pedal, and the driven member is used to drive the locking member from the locked position to the unlocked position by the action of the driving member;

[0012] The drive unit is equipped with an anti-accidental touch structure, which is used to lock the drive unit.

[0013] The push handle structure, front support structure, rear support structure, and locking mechanism are all standard features on existing strollers and are not innovative points of this application. They can be referred to in existing technologies and will not be elaborated upon here. Similarly, the seat plate and footrest in the seat assembly are also standard features on existing strollers; the seat plate supports the child's buttocks, and the footrest supports the child's feet. The connections within the frame assembly and between the frame assembly and the seat assembly are not limited here and are not innovative points of this application; they can be referred to in existing technologies.

[0014] It is understood that the unlocking components in this application can be used on strollers, such as shopping carts, and are not limited to strollers designed for children.

[0015] The driving component is movably installed at the bottom of the seat or the bottom of the pedal. By moving the driving component, the driven component can be driven, and then the driven component can drive the locking component to move from the locked position to the unlocked position, thereby unlocking the frame structure and allowing the stroller to be folded and stored.

[0016] By integrating the drive mechanism into the seat assembly (or seat structure), the problem of not being able to unlock the frame assembly (or frame structure) when the user is near the seat to supervise the child is effectively solved. When the user is near the seat assembly, such as on the side of the stroller, they can directly operate the drive mechanism on the seat assembly to unlock it, greatly improving the flexibility of use. On the other hand, it simplifies the process of unlocking and folding the stroller. When folding the stroller, the user does not need to travel back and forth between the push handle and the side of the stroller. Unlocking and folding can be completed simultaneously at the side of the stroller where force is applied, significantly improving the convenience of use. Furthermore, by freeing up the installation space on the push handle structure, the unlocking component is prevented from occupying the space of the push handle structure, which is conducive to the simplified design of the push handle structure. At the same time, the grip of the push handle structure can be optimized, further improving the overall user experience of the stroller.

[0017] Furthermore, the drive unit is movably mounted at the bottom of the seat plate (understood with the vertical direction as the reference) or the bottom of the pedal. The drive unit does not protrude upwards from the seat plate or pedal and will not affect the basic support function of the seat plate or pedal for the user.

[0018] In addition, the drive unit is equipped with an anti-accidental activation structure (also known as a locking structure, which locks and unlocks the drive unit). If the drive unit needs to slide to unlock, a limiting structure (i.e., the anti-accidental activation structure) is set in its sliding unlocking path (the limiting structure can move out of the path to allow the drive unit to slide), preventing the drive unit from accidentally unlocking the locking mechanism due to the bumps of the stroller. The specific construction of the anti-accidental activation structure is not limited; it can be constructed as an existing pin or other anti-accidental activation structure to prevent the drive unit from accidentally moving and unlocking. The specific support method of the anti-accidental activation structure is not limited; it can be slidably mounted on the bottom surface of the seat plate. In the following description, the anti-accidental activation structure specifically realizes the locking and unlocking of the moving parts.

[0019] In some embodiments, the driven member and the locking member abut against each other or are connected (such as by snap-fit ​​or threaded connection) to achieve synchronous movement of the driving member, driven member, and locking member, thereby improving the timeliness of unlocking. In addition, at least one of the driving member, driven member, and locking member can be equipped with a reset member (such as a compression spring, preferably connected to the driving member or locking member) to reset the locking member from the unlocked position to the locked position.

[0020] In a further technical solution, the locking member includes two locking portions symmetrically arranged in the width direction of the frame assembly. The locking portions are configured to achieve relative fixation of at least two of the push handle structure, the front bracket structure and the rear bracket structure, and the locking portions are movable along the width direction of the frame assembly to switch between a locked position and an unlocked position.

[0021] The driven member includes two driven parts symmetrically arranged in the width direction of the frame assembly. The driven parts are tractively connected to the driving member and are used to drive the corresponding locking part from the locked position to the unlocked position along the width direction of the frame assembly under the action of the driving member.

[0022] For example, the rear support structure includes two rear wheels and corresponding first links, and the push handle structure includes two second links. The locking part can lock the corresponding first links and second links. Compared with setting a locking part only at one end of the width direction of the frame assembly, the locking method of setting a locking part at both ends of the width direction of the frame assembly is more stable and reliable, and also makes the overall structure of the stroller stronger.

[0023] In a further technical solution, the driving component includes a movable part and two transmission parts symmetrically arranged in the width direction of the frame assembly; one end of the movable part is movably disposed at the bottom end of the seat plate or the bottom end of the pedal, and the other end is connected to one end of the transmission part, and the other end of the transmission part is connected to the corresponding driven part.

[0024] It is adapted to the setting of two driven parts. The transmission part is set to two and symmetrically arranged in the width direction of the frame assembly, while the moving part is single. When unlocking, only the moving part needs to be operated to move both driven parts to the unlocking position at the same time. Based on the setting of two driven parts, it avoids the increase in unlocking time and unlocking difficulty, and avoids unlocking failure caused by the asynchronous movement of the two driven parts.

[0025] In a further technical solution, the movable part has two first through holes symmetrically arranged in the width direction of the frame assembly, corresponding to the two transmission parts, and the first through holes are arranged through the movable part in the thickness direction;

[0026] The driven part is provided with a second through hole corresponding to the transmission part, and the second through hole is provided to penetrate along the thickness direction of the driven part;

[0027] The transmission part is constructed as a rope-like structure. One end of the rope-like structure is detachably connected to the movable part through a corresponding first through hole, and the other end is detachably connected to the driven part through a corresponding second through hole.

[0028] The first perforation is used as an example for illustration. The first perforation is set through the thickness direction of the movable part, which is convenient for processing and for the rope-like structure to pass through. The shape of the first perforation is not limited.

[0029] Each drive unit is equipped with a first through hole. The two first through holes are symmetrically arranged in the width direction of the frame assembly, further ensuring that the two driven units can be simultaneously moved to the unlocked position by operating only the moving part.

[0030] The transmission part is constructed as a rope-like structure, for example, a steel wire rope (this application can be used as an example). One end of the steel wire rope is detachably connected to the movable part through a corresponding first through hole, and the other end is detachably connected to the driven part through a corresponding second through hole. The steel wire rope can be quickly disassembled and assembled, thereby enabling the movable part to be quickly connected to the two driven parts for transmission, so as to ensure that only the movable part needs to be operated to simultaneously move the two driven parts to the unlocked position.

[0031] In some embodiments, the extension direction of the first perforation may be set at an angle to the thickness direction of the movable part, and the extension direction of the second perforation may be set at an angle to the thickness direction of the driven part.

[0032] It should be noted that the transmission part can be constructed as a linkage structure, which can be rotatably connected to the corresponding structure (such as the movable part). However, compared with the linkage structure, the use of a rope structure can improve the aesthetics of the stroller.

[0033] In a further technical solution, the rope-like structure includes a first segment, a second segment, and a third segment connected in sequence. The first segment (through a first perforation) is detachably connected to the movable part, and the third segment (through a second perforation) is detachably connected to the corresponding driven part.

[0034] The stroller is configured to have a locked state. In the locked state, the driven parts are in the locked position. The first section extends along the length of the frame assembly, the second section is bent, and the third section extends along the width of the frame assembly. At this time, the movable part is not located between the two driven parts. For example, in the length direction of the frame assembly, the movable part can be installed at the end of the seat away from the third section. When unlocking, the operator only needs to stand on the side of the stroller and then reach under the seat to unlock it. This is adapted to the operator's standing position when folding the stroller, without requiring the operator to move repeatedly, and there is no situation where the connecting rod of the rear support structure interferes with the operator's hand when unlocking.

[0035] The second curved section allows for a smooth transition between the first and third sections, reducing resistance during rope-like structure movement and preventing increased unlocking difficulty by incorporating two driven parts.

[0036] The first, second, and third segments are preferably set up as a single unit.

[0037] In a further technical solution, the movable part is rotatably disposed at the bottom end of the seat plate, or the movable part is slidably disposed at the bottom end of the seat plate.

[0038] The activity area is located on the seat. Since the seat is higher than the footrest when the stroller is in use, it is convenient for the operator to unlock the stroller without having to move the stroller repeatedly, thus avoiding increasing the difficulty of unlocking (such as avoiding the need to squat to unlock).

[0039] If the movable part is located on the footrest, the length of the rope structure needs to be increased, leading to higher costs and reduced transmission reliability. Furthermore, if the rope structure needs to be as internally integrated as possible (i.e., not exposed to the external environment of the stroller), this becomes more difficult to achieve, further increasing costs. If most of the rope structure is exposed, it can easily cause transmission malfunctions. Locating the movable part on the seat plate avoids these problems.

[0040] When the movable part is slidably located at the bottom of the seat, whether in the locked or unlocked state (to achieve folding of the stroller), the first section extends along the length of the frame assembly, and the third section extends along the width of the frame assembly.

[0041] Taking the example of the movable part sliding at the bottom of the seat plate, in the locked state, the movable part can protrude downward relative to the bottom surface of the seat plate to facilitate the operator to push the movable part.

[0042] It should be noted that the movable part is preferably installed at the bottom of the seat and centered in the width direction of the stroller, and preferably installed at the end of the seat away from the push handle structure, and preferably using a sliding installation method.

[0043] A further technical solution is that the base plate is provided with a first groove corresponding to the first segment, a second groove corresponding to the second segment, and a third groove corresponding to the third segment;

[0044] The first groove is connected to the corresponding second groove and the corresponding third groove;

[0045] The first segment is spaced apart from the wall of the corresponding first tank; the third segment is spaced apart from the wall of the corresponding third tank.

[0046] It is understandable that the connection can be indirect, such as the first tank and the third tank being connected through the second tank.

[0047] Taking the first groove as an example, the opening of the first groove accommodates the first segment, protecting it from external interference and improving the transmission reliability of the transmission unit during long-term use. Furthermore, because the first segment and the corresponding wall of the first groove are spaced apart, no friction is generated between them, thus avoiding increased unlocking difficulty even with two driven parts.

[0048] In a further technical solution, the second groove is an arc-shaped groove, and the second section fits into an arc-shaped surface of the corresponding second groove to achieve a curved setting of the second section, so that the first section and the third section can achieve a smooth transition connection, which can reduce the resistance encountered when the rope structure moves, and avoid increasing the difficulty of unlocking by setting two driven parts.

[0049] Furthermore, taking the second segment as an example with a circular cross-section, in its radial direction, only one side of the surface is in contact with the corresponding second groove. At this time, the size of the second groove in this direction is larger than that of the second segment. This avoids both symmetrical surfaces of the second segment being in contact with the second groove, which can reduce the resistance encountered when the rope structure moves.

[0050] In a further technical solution, the base plate is provided with two fourth grooves corresponding to the two driven parts and a fifth groove corresponding to the movable part. The fourth groove is connected to the corresponding third groove, and the fifth groove is connected to the first groove.

[0051] In the length direction of the frame assembly, the fourth groove is adapted to the size of the corresponding driven part to restrict the movement of the corresponding driven part along the length direction of the frame assembly, so that the driven part can only switch between the locked position and the unlocked position, avoiding deviation that would affect the locking and unlocking effects;

[0052] In the width direction of the frame assembly, the fifth groove is adapted to the size of the movable part to restrict the movement of the movable part along the width direction of the frame assembly, promote the stable and symmetrical arrangement of the two transmission parts in the width direction of the frame assembly, and realize that in the long-term use, only the movable part needs to be operated to simultaneously transfer the two driven parts to the unlock position. Based on the setting of two driven parts, the unlocking time and unlocking difficulty are avoided.

[0053] Furthermore, by using the limiting follower and the moving part, it is also possible to set the distance between the first stable section and the wall of the corresponding first groove, and the distance between the third stable section and the wall of the corresponding third groove, so as to avoid increasing the difficulty of unlocking.

[0054] In some embodiments, at least one guide ring (not shown in the figure) is fixedly disposed within the second groove. The second segment passes through the corresponding guide ring, which creates a gap between the second segment and the wall of the corresponding second groove, further reducing the difficulty of unlocking. Preferably, a guide ring is disposed at the opening of the second groove facing the corresponding first groove, another guide ring is disposed at the opening of the second groove facing the corresponding third groove, and a third guide ring is disposed in the middle of the second groove. Compared to the second segment being flush with the wall of the corresponding second groove, the second segment is flush with the inner wall of the narrower guide ring, resulting in less resistance.

[0055] Due to the application of the above-mentioned solution, the technical solution of this application has the following advantages and effects compared with the prior art:

[0056] The driving component is movably installed at the bottom of the seat or the bottom of the pedal. By moving the driving component, the driven component can be driven, and then the driven component can drive the locking component to move from the locked position to the unlocked position, thereby unlocking the frame structure and allowing the stroller to be folded and stored.

[0057] By integrating the drive mechanism into the seat assembly, the problem of not being able to unlock the frame assembly when the user is near the seat to supervise the child is effectively solved. When the user is near the seat assembly, such as on the side of the stroller, they can directly operate the drive mechanism on the seat assembly to unlock it, greatly improving the flexibility of use. On the other hand, it simplifies the process of unlocking and folding the stroller. When folding the stroller, the user does not need to go back and forth between the push handle and the side of the stroller. Unlocking and folding can be completed simultaneously at the side of the stroller where force is applied, significantly improving the convenience of use. Furthermore, by freeing up the installation space on the push handle structure, the unlocking component is not occupied by the push handle structure, which is conducive to the simplified design of the push handle structure. At the same time, the grip of the push handle structure can be optimized, further improving the overall user experience of the stroller.

[0058] In addition, the drive unit is movably mounted at the bottom of the seat plate or the bottom of the pedal. The drive unit does not protrude upwards from the seat plate or pedal and will not affect the basic support function of the seat plate or pedal for the user.

[0059] In addition, the drive unit is equipped with an anti-accidental touch structure (which can also be called a locking structure to lock and unlock the drive unit). If the drive unit needs to slide to unlock, a limit structure (i.e., the anti-accidental touch structure) is set on its sliding unlock path (the limit structure can be moved out of the path so that the drive unit can slide), to prevent the drive unit from accidentally unlocking the locking device due to the bumps of the stroller. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the structure of a stroller according to an embodiment of the present invention (part of the seat structure is omitted to show the unlocking component);

[0061] Figure 2 for Figure 1 A structural diagram from another perspective;

[0062] Figure 3 for Figure 1 Another structural diagram from a different perspective;

[0063] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0064] Figure 5 This is one of the partial cross-sectional views of the stroller according to an embodiment of the present invention (the locking part is in the locked position);

[0065] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0066] Figure 7 This is a second partial cross-sectional view of the stroller according to an embodiment of the present invention (the locking part is in the unlocked position).

[0067] Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0068] In the attached diagrams above:

[0069] 1. Chassis components;

[0070] 11. Push handle structure; 111. Second connecting rod;

[0071] 12. Front support structure;

[0072] 13. Rear support structure; 131. Rear wheel; 132. First connecting rod;

[0073] 14. Locking component; 141. Locking part;

[0074] 2. Base assembly;

[0075] 21. Seat plate; 211. First groove; 212. Second groove; 213. Third groove; 214. Fourth groove; 215. Fifth groove;

[0076] 22. Pedal;

[0077] 3. Unlock components;

[0078] 31. Driving component; 311. Moving part; 3111. First through hole;

[0079] 312. Transmission section; 3121. First section; 3122. Second section; 3123. Third section;

[0080] 32. Follower; 321. Follower part; 3211. Second perforation. Detailed Implementation

[0081] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0082] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0083] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0084] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0085] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this case.

[0086] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0087] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0088] See Figures 1-8 A stroller that can be easily unlocked includes a frame assembly 1, a seat assembly 2, and an unlocking assembly 3;

[0089] The frame assembly 1 includes a push handle structure 11, a front support structure 12, a rear support structure 13, and a locking member 14. The locking member 14 is used to fix at least two of the push handle structure 11, the front support structure 12, and the rear support structure 13 in a locked position, and the locking member 14 can move along the width direction of the frame assembly 1 (parallel to the Y direction in the figure) to switch between a locked position and an unlocked position.

[0090] The seat assembly 2 includes a seat plate 21 and a pedal 22 connected to each other;

[0091] The unlocking component 3 includes a driving member 31 and a driven member 32 connected by a transmission. The driving member 31 is movably mounted on the bottom end of the seat plate 21 or the bottom end of the pedal 22. The driven member 32 is used to drive the locking member 14 from the locked position to the unlocked position by the action of the driving member 31.

[0092] The drive unit 31 is equipped with an anti-accidental touch structure, which is used to lock the drive unit 31.

[0093] The push handle structure 11, front support structure 12, rear support structure 13, and locking element 14 are all standard features on existing strollers and are not innovative points of this application. They can be referred to in existing technology and will not be elaborated upon here. Similarly, the seat plate 21 and footrest 22 in the seat assembly 2 are also standard features on existing strollers. The seat plate 21 supports the child's buttocks, and the footrest 22 supports the child's feet. The connections of the internal structures of the frame assembly 1, and the connections between the internal structures of the frame assembly 1 and the internal structures of the seat assembly 2, are not limited here and are not innovative points of this application. They can be referred to in existing technology.

[0094] It is understood that the unlocking component 3 in this embodiment can be used in strollers, such as shopping carts, and is not limited to strollers for children.

[0095] The drive component 31 is movably installed at the bottom of the seat plate 21 or the bottom of the pedal 22. By moving the drive component 31, the driven component 32 can be driven, and then the driven component 32 can drive the locking component 14 from the locked position to the unlocked position, thereby unlocking the frame structure and enabling the stroller to be folded and stored.

[0096] By integrating the drive unit 31 onto the seat assembly (or seat structure), the problem of not being able to unlock the frame assembly 1 (or frame structure) when the user is near the seat to supervise the child is effectively solved. When the user is near the seat assembly, such as on the side of the stroller, the drive unit 31 on the seat assembly can be directly operated to unlock the stroller, greatly improving the flexibility of use. On the other hand, the operation process of unlocking and folding the stroller is simplified. When folding the stroller, the user does not need to travel back and forth between the push handle structure 11 and the side of the stroller. Unlocking and folding can be completed simultaneously at the side of the stroller where force is applied, significantly improving the convenience of use. Furthermore, by freeing up the installation space on the push handle structure 11, the unlocking component 3 is prevented from occupying the space of the push handle structure 11, which is conducive to the simplified design of the push handle structure 11. At the same time, the grip of the push handle structure 11 can be optimized, further improving the overall user experience of the stroller.

[0097] In addition, the drive unit 31 is movably mounted on the bottom end of the seat plate 21 (understood with the vertical direction as the reference) or the bottom end of the pedal 22. The drive unit 31 does not protrude upwards from the seat plate 21 or the pedal 22 and will not affect the basic support function of the seat plate 21 or the pedal 22 for the user.

[0098] In addition, the drive component 31 is equipped with an anti-accidental touch structure (also known as a locking structure, which locks and unlocks the drive component 31). If the drive component 31 needs to slide to unlock, a limiting structure (i.e., the anti-accidental touch structure) is set on its sliding unlocking path (the limiting structure can move out of the path to allow the drive component 31 to slide), preventing the drive component 31 from accidentally unlocking the locking component 14 due to the bumps of the stroller. The specific construction of the anti-accidental touch structure is not limited; it can be constructed as an existing anti-accidental touch structure such as a latch, as long as it achieves the purpose of preventing the drive component 31 from moving and unlocking accidentally. In the following, the anti-accidental touch structure specifically realizes the locking and unlocking of the movable part 311.

[0099] In some embodiments, the driven member 32 abuts against the locking member 14 or establishes a connection (such as a snap-fit ​​or threaded connection) to achieve synchronous movement of the driving member 31, the driven member 32, and the locking member 14, thereby improving the timeliness of unlocking. Furthermore, at least one of the driving member 31, the driven member 32, and the locking member 14 may be equipped with a reset member (not shown in the figure, but may be a compression spring, preferably connected to the driving member 31 or the locking member 14) to reset the locking member 14 from the unlocked position to the locked position.

[0100] See Figures 5-8In one embodiment of this application, the locking member 14 includes two locking portions 141 symmetrically arranged in the width direction of the frame assembly 1. The locking portions 141 are configured to achieve relative fixation of at least two of the push handle structure 11, the front bracket structure 12 and the rear bracket structure 13, and the locking portions 141 are movable along the width direction of the frame assembly 1 to switch between a locked position and an unlocked position.

[0101] The driven member 32 includes two driven parts 321 symmetrically arranged in the width direction of the frame assembly 1. The driven parts 321 are connected to the driving member 31 and are used to drive the corresponding locking part 141 from the locked position to the unlocked position by the driving member 31 along the width direction of the frame assembly 1.

[0102] For example, the rear support structure 13 includes two rear wheels 131 and corresponding first connecting rods 132, and the push handle structure 11 includes two second connecting rods 111. The locking part 141 can lock the corresponding first connecting rod 132 and second connecting rod 111. Compared with setting the locking part 141 only at one end of the width direction of the frame assembly 1, the locking method of setting a locking part 141 at both ends of the width direction of the frame assembly 1 is more stable and reliable, and also makes the overall structural strength of the stroller higher.

[0103] See Figures 1-4 In one embodiment of this application, the drive member 31 includes a movable part 311 and two transmission parts 312 symmetrically arranged in the width direction of the frame assembly 1; one end of the movable part 311 is movably disposed at the bottom end of the seat plate 21 or the bottom end of the pedal 22, and the other end is connected to one end of the transmission part 312, and the other end of the transmission part 312 is connected to the corresponding driven part 321.

[0104] The transmission part 312 is configured to be two and symmetrically arranged in the width direction of the frame assembly 1, while the movable part 311 is a single one. When unlocking, only the movable part 311 needs to be operated to move the two driven parts 321 to the unlocking position at the same time. Based on the configuration of two driven parts 321, the unlocking time and unlocking difficulty are avoided, and the unlocking failure caused by the asynchronous movement of the two driven parts 321 is avoided.

[0105] See Figure 4 In one embodiment of this application, the movable part 311 has two first through holes 3111 symmetrically arranged in the width direction of the frame assembly 1, corresponding to the two transmission parts 312. The first through holes 3111 are arranged through the movable part 311 in the thickness direction.

[0106] The driven part 321 is provided with a second through hole 3211 corresponding to the transmission part 312, and the second through hole 3211 is provided through the thickness direction of the driven part 321.

[0107] The transmission part 312 is constructed as a rope-like structure. One end of the rope-like structure is detachably connected to the movable part 311 through a corresponding first through hole 3111, and the other end is detachably connected to the driven part 321 through a corresponding second through hole 3211.

[0108] The first perforation 3111 is used as an example for illustration. The first perforation 3111 is provided through the thickness direction of the movable part 311, which is convenient for processing and for the rope-like structure to pass through. The shape of the first perforation 3111 is not limited.

[0109] Each transmission part 312 is equipped with a first through hole 3111. The two first through holes 3111 are symmetrically arranged in the width direction of the frame assembly 1, which further ensures that the two driven parts 321 can be moved to the unlocked position simultaneously by operating the moving part 311.

[0110] The transmission part 312 is constructed as a rope-like structure, for example, the transmission part 312 is constructed as a steel wire rope (this embodiment can be used as an example). One end of the steel wire rope is detachably connected to the movable part 311 through the corresponding first through hole 3111, and the other end is detachably connected to the driven part 321 through the corresponding second through hole 3211. The steel wire rope can be quickly disassembled and assembled, thereby enabling the movable part 311 to be quickly connected to the two driven parts 321 for transmission, so as to ensure that only the movable part 311 needs to be operated to simultaneously transfer the two driven parts 321 to the unlocked position.

[0111] In some embodiments, the extension direction of the first perforation 3111 may be set at an angle to the thickness direction of the movable part 311, and the extension direction of the second perforation 3211 may be set at an angle to the thickness direction of the driven part 321.

[0112] It should be noted that the transmission part 312 can be constructed as a linkage structure, which can be rotatably connected to the corresponding structure (such as the movable part 311). However, compared with the linkage structure, the use of a rope-like structure can improve the aesthetics of the stroller.

[0113] See Figure 4 In one embodiment of this application, the rope-like structure includes a first segment 3121, a second segment 3122, and a third segment 3123 connected in sequence. The first segment 3121 is connected to the movable part 311, and the third segment 3123 is connected to the corresponding driven part 321.

[0114] The stroller is configured to have a locked state. In the locked state, the driven part 321 is in the locked position. The first segment 3121 extends along the length direction of the frame assembly 1, the second segment 3122 is bent, and the third segment 3123 extends along the width direction of the frame assembly 1. At this time, the movable part 311 is not located between the two driven parts 321. For example, in the length direction of the frame assembly 1, the movable part 311 can be installed at the end of the seat plate 21 away from the third segment 3123. When unlocking, the operator only needs to stand on the side of the stroller and then reach under the seat plate 21 to unlock it. This is adapted to the standing position of the operator when folding the stroller. The operator does not need to move repeatedly, and there will be no situation where the connecting rod of the rear support structure 13 interferes with the operator's hand when unlocking.

[0115] The second segment 3122 is curved, which allows for a smooth transition between the first segment 3121 and the third segment 3123. This reduces the resistance encountered when the rope structure moves and avoids increasing the difficulty of unlocking, based on the setting of two driven parts 321.

[0116] The first segment 3121, the second segment 3122, and the third segment 3123 are preferably integrated into one unit.

[0117] In one embodiment of this application, the movable part 311 is rotatably disposed at the bottom end of the seat plate 21, or the movable part 311 is slidably disposed at the bottom end of the seat plate 21.

[0118] The activity section 311 is located on the seat 21. Since the seat 21 is higher than the foot pedal 22 when the stroller is in use, it is convenient for the operator to unlock the stroller without having to move it repeatedly, thus avoiding increasing the difficulty of unlocking (such as avoiding the need to squat to unlock).

[0119] If the movable part 311 is located on the footrest 22, the length of the rope structure needs to be increased, leading to higher costs and reduced transmission reliability. In this case, if the rope structure needs to be as internally mounted as possible (i.e., not exposed to the external environment of the stroller), it becomes more difficult to achieve, further increasing costs. If most of the rope structure is exposed, it can easily cause transmission malfunctions. By locating the movable part 311 on the seat plate 21, these problems can be avoided.

[0120] When the movable part 311 is slidably disposed at the bottom end of the seat plate 21, whether in the locked state or the unlocked state (to realize the folding of the stroller), the first section 3121 extends along the length direction of the frame assembly 1, and the third section 3123 extends along the width direction of the frame assembly 1.

[0121] Taking the example of the movable part 311 being slidably disposed at the bottom end of the base plate 21, in the locked state, the movable part 311 can protrude downward relative to the bottom surface of the base plate 21, so as to facilitate the operator to push the movable part 311.

[0122] It should be noted that the movable part 311 is preferably installed at the bottom of the seat plate 21 and is centered in the width direction of the stroller. It is also preferably installed at the end of the seat plate 21 away from the push handle structure 11, and preferably it is installed in a sliding manner.

[0123] See Figure 4 In one embodiment of this application, the seat plate 21 is provided with a first groove 211 corresponding to the first segment 3121, a second groove 212 corresponding to the second segment 3122, and a third groove 213 corresponding to the third segment 3123;

[0124] The first groove 211 is connected to the corresponding second groove 212 and the corresponding third groove 213;

[0125] The first segment 3121 is spaced apart from the wall of the corresponding first groove 211; the third segment 3123 is spaced apart from the wall of the corresponding third groove 213.

[0126] It is understandable that the connection can be indirect, such as the first slot 211 and the third slot 213 being connected through the second slot 212.

[0127] Taking the first groove 211 as an example, the opening of the first groove 211 accommodates the first segment 3121, which can protect the first segment 3121 from easy interference from the external environment due to its exposure, thereby improving the transmission reliability of the transmission part 312 during long-term use. In addition, since the first segment 3121 and the corresponding first groove 211 are spaced apart, no friction is generated between them, and with the two driven parts 321 provided, the difficulty of unlocking is avoided.

[0128] In one embodiment of this application, the second groove 212 is an arc-shaped groove, and the second segment 3122 fits into an arc-shaped surface of the corresponding second groove 212, thereby achieving a curved setting of the second segment 3122. This allows for a smooth transition connection between the first segment 3121 and the third segment 3123, which can reduce the resistance encountered when the rope structure moves. Based on the setting of two driven parts 321, it avoids increasing the difficulty of unlocking.

[0129] Furthermore, taking the second segment 3122 as an example with a circular cross-section, in its radial direction, only one side of its surface is in contact with the corresponding second groove 212. At this time, the size of the second groove 212 in this direction is larger than that of the second segment 3122. This avoids both symmetrical surfaces of the second segment 3122 being in contact with the second groove 212, which can reduce the resistance encountered when the rope structure moves.

[0130] See Figure 4In one embodiment of this application, the seat plate 21 is provided with two fourth grooves 214 corresponding to the two driven parts 321 and a fifth groove 215 corresponding to the movable part 311. The fourth grooves 214 are connected to the corresponding third grooves 213, and the fifth groove 215 is connected to the first groove 211.

[0131] In the length direction of the frame assembly 1, the fourth groove 214 is adapted to the size of the corresponding driven part 321 to restrict the movement of the corresponding driven part 321 along the length direction of the frame assembly 1 (parallel to the X direction in the figure), so that the driven part 321 can only switch between the locked position and the unlocked position, avoiding deviation that would affect the locking and unlocking effects;

[0132] In the width direction of the frame assembly 1, the fifth groove 215 is adapted to the size of the movable part 311 to restrict the movement of the movable part 311 along the width direction of the frame assembly 1, and promote the stable and symmetrical arrangement of the two transmission parts 312 in the width direction of the frame assembly 1. This allows the two driven parts 321 to be moved to the unlock position simultaneously by operating the movable part 311 during long-term use. Based on the setting of two driven parts 321, the unlocking time and unlocking difficulty are avoided.

[0133] Furthermore, by using the limiting follower 321 and the movable part 311, the first segment 3121 can be stabilized and the wall of the corresponding first groove 211 can be spaced apart, and the third segment 3123 can be stabilized and the wall of the corresponding third groove 213 can be spaced apart, thus avoiding increased difficulty in unlocking.

[0134] In some embodiments, at least one guide ring (not shown in the figure) is fixedly disposed inside the second groove 212. The second segment 3122 passes through the corresponding guide ring, which achieves the spacing between the second segment 3122 and the wall of the corresponding second groove 212, further reducing the difficulty of unlocking. Preferably, a guide ring is disposed at the opening of the second groove 212 facing the corresponding first groove 211, a guide ring is disposed at the opening of the second groove 212 facing the corresponding third groove 213, and a guide ring is disposed in the middle of the second groove 212. Compared with the second segment 3122 being in contact with the wall of the corresponding second groove 212, the second segment 3122 is in contact with the inner wall of the guide ring, which has a smaller width, and experiences less resistance.

[0135] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A stroller with easy unlocking capability, comprising a frame assembly (1), a seat assembly (2), and an unlocking assembly (3); the frame assembly (1) includes a push handle structure (11), a front support structure (12), a rear support structure (13), and a locking member (14), the locking member (14) being used to fix at least two of the push handle structure (11), the front support structure (12), and the rear support structure (13) relative to each other in a locked position, and the locking member (14) being movable along the width direction of the frame assembly (1) to switch between a locked position and an unlocked position; the seat assembly (2) includes a seat plate (21) and a pedal (22) connected together; characterized in that: The unlocking component (3) includes a drive member (31) and a driven member (32) connected by transmission; the drive member (31) is movably installed at the bottom end of the seat plate (21) or the bottom end of the pedal (22), and the driven member (32) is used to drive the locking member (14) from the locked position to the unlocked position by the action of the drive member (31); The drive unit (31) is equipped with an anti-accidental touch structure, which is used to lock the drive unit (31).

2. The stroller that can be easily unlocked according to claim 1, characterized in that: The locking member (14) includes two locking portions (141) symmetrically arranged in the width direction of the frame assembly (1), the locking portions (141) being configured to achieve relative fixation of at least two of the push handle structure (11), the front bracket structure (12) and the rear bracket structure (13), and the locking portions (141) being movable in the width direction of the frame assembly (1) to switch between a locked position and an unlocked position; The driven member (32) includes two driven parts (321) symmetrically arranged in the width direction of the frame assembly (1). The driven parts (321) are connected to the driving member (31) and are used to drive the corresponding locking part (141) from the locked position to the unlocked position by the action of the driving member (31) along the width direction of the frame assembly (1).

3. A stroller that can be easily unlocked according to claim 2, characterized in that: The drive unit (31) includes a movable part (311) and two transmission parts (312) symmetrically arranged in the width direction of the frame assembly (1); one end of the movable part (311) is movably disposed at the bottom end of the seat plate (21) or the bottom end of the pedal (22), and the other end is connected to one end of the transmission part (312), and the other end of the transmission part (312) is connected to the corresponding driven part (321).

4. A stroller that can be easily unlocked according to claim 3, characterized in that: The movable part (311) has two first through holes (3111) symmetrically arranged in the width direction of the frame assembly (1) corresponding to the two transmission parts (312). The first through holes (3111) are arranged through the movable part (311) in the thickness direction. The driven part (321) is provided with a second through hole (3211) corresponding to the transmission part (312), and the second through hole (3211) is provided through the driven part (321) along the thickness direction; The transmission part (312) is constructed as a rope-like structure. One end of the rope-like structure is detachably connected to the movable part (311) through a corresponding first through hole (3111), and the other end is detachably connected to the driven part (321) through a corresponding second through hole (3211).

5. A stroller that can be easily unlocked according to claim 4, characterized in that: The rope-like structure includes a first segment (3121), a second segment (3122), and a third segment (3123) connected in sequence. The first segment (3121) is detachably connected to the movable part (311), and the third segment (3123) is detachably connected to the corresponding driven part (321). The stroller is configured to have a locked state, in which the driven part (321) is in a locked position, the first segment (3121) extends along the length direction of the frame assembly (1), the second segment (3122) is bent, and the third segment (3123) extends along the width direction of the frame assembly (1).

6. A stroller that can be easily unlocked according to claim 5, characterized in that: The movable part (311) is rotatably disposed at the bottom end of the seat plate (21), or the movable part (311) is slidably disposed at the bottom end of the seat plate (21).

7. A stroller that can be easily unlocked according to claim 6, characterized in that: The seat plate (21) is provided with a first groove (211) corresponding to the first segment (3121), a second groove (212) corresponding to the second segment (3122) and a third groove (213) corresponding to the third segment (3123). The first groove (211) is connected to the corresponding second groove (212) and the corresponding third groove (213); The first segment (3121) is spaced apart from the wall of the corresponding first groove (211); the third segment (3123) is spaced apart from the wall of the corresponding third groove (213).

8. A stroller that can be easily unlocked according to claim 7, characterized in that: The second groove (212) is an arc-shaped groove, and the second segment (3122) is in contact with an arc-shaped surface of the corresponding second groove (212).

9. A stroller that can be easily unlocked according to claim 7, characterized in that: The seat plate (21) is provided with two fourth grooves (214) corresponding to the two driven parts (321) and a fifth groove (215) corresponding to the movable part (311). The fourth groove (214) is connected to the corresponding third groove (213), and the fifth groove (215) is connected to the first groove (211). In the longitudinal direction of the frame assembly (1), the fourth groove (214) is sized to match the corresponding driven part (321) to restrict the movement of the corresponding driven part (321) along the longitudinal direction of the frame assembly (1); In the width direction of the frame assembly (1), the fifth groove (215) is sized to match the movable part (311) to restrict the movement of the movable part (311) in the width direction of the frame assembly (1).

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