Seat pocket and stroller

Abstract

The utility model relates to the technical field of products for children, and discloses a seat pocket and a stroller, and the seat pocket comprises a base, a leg support, a locking mechanism and an unlocking mechanism. The leg support is rotationally connected to the base, the locking mechanism is arranged between the leg support and the base, and the locking mechanism is provided with a locking position for locking the leg support and the base and an unlocking position for unlocking the leg support and the base. The unlocking mechanism comprises an unlocking piece and a transmission assembly, the unlocking piece is movably arranged on the leg support, and the transmission assembly is connected with the unlocking piece and the locking mechanism so that the transmission assembly can drive the locking mechanism to move towards the unlocking position when the unlocking piece is operated. When the angle of the pedal of the leg support is adjusted or the leg support is folded and stored, the base and the leg support can be unlocked or fixed only by operating the unlocking piece, operation is easy, the position of the pedal can be adjusted with one hand, and better use experience feeling is provided for a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field especially, relate to a seat pocket and children's push car. BACKGROUND

[0002] The seat pocket generally includes base and backrest, and the backrest can rotate relative to the base, and the use state of the seat pocket can be adjusted. In order to facilitate storage, the existing seat pocket is usually designed as a foldable type, that is, the backrest can rotate and fold relative to the base to reduce the storage volume of the seat pocket.

[0003] In order to facilitate supporting the feet of children, the footrest is usually arranged on the seat pocket. The footrest on the seat pocket of the existing part is usually fixed in supporting angle and cannot be adjusted, which affects the use comfort. Although the footrest of the seat pocket of part can adjust the angle, it needs to be operated by both hands, and the adjustment is difficult, so that the use is inconvenient.

[0004] Therefore, a seat pocket and children's push car are needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] Based on the above problems, the purpose of the utility model is to provide a seat pocket and children's push car, which can reduce the adjustment difficulty of the supporting angle of the footrest and improve the use convenience.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] On the one hand, a seat pocket is provided, which comprises:

[0008] Base;

[0009] Leg support, which is rotatably connected to the base;

[0010] Locking mechanism, which is arranged between the leg support and the base, and has a locking position for locking the leg support and the base and an unlocking position for unlocking the leg support and the base;

[0011] Unlocking mechanism, which comprises an unlocking piece and a transmission assembly, the unlocking piece is movably arranged on the leg support, and the transmission assembly is engaged with the unlocking piece and the locking mechanism respectively, so that the transmission assembly can drive the locking mechanism to move towards the unlocking position when the unlocking piece is operated.

[0012] As an optional scheme of the seat pocket of the utility model, the locking mechanism comprises a locking piece, and the locking piece is movably arranged on the rotation axis of the base and the leg support;

[0013] The transmission assembly comprises a rotating member coaxially arranged with the locking member, the transmission member can rotate around the rotating axis, the leg support is provided with a first guide part, the rotating member is provided with a second guide part, when the rotating member rotates, the first guide part cooperates with the second guide part to drive the rotating member to move the locking member along the rotating axis;

[0014] The rotating member is provided with a first rotation-stopping structure, the leg support is provided with a second rotation-stopping structure, and the first rotation-stopping structure cooperates with the second rotation-stopping structure to limit the rotation of the rotating member in the locking position.

[0015] As an optional scheme of the seat pocket of the utility model, one of the first guide part and the second guide part is a guide protrusion, the other of the first guide part and the second guide part is a guide groove, the guide protrusion can be inserted into the guide groove, the guide protrusion has a first guide inclined surface, and the inner wall of the guide groove has a second guide inclined surface, the first guide inclined surface and the second guide inclined surface slide in cooperation.

[0016] As an optional scheme of the seat pocket of the utility model, the locking member is provided with a limiting tooth, the leg support is provided with a first limiting groove, the base is provided with a second limiting groove, the limiting tooth is clamped with the first limiting groove and the second limiting groove in the locking position, and the limiting tooth is separated from the first limiting groove and clamped with the second limiting groove in the unlocking position;

[0017] The first limiting groove and the second limiting groove are both provided with a plurality of limiting grooves, a plurality of the first limiting grooves are distributed along the circumference of the rotating axis, a plurality of the second limiting grooves correspond to a plurality of the first limiting grooves one by one, and the limiting tooth can be selectively clamped into the corresponding first limiting groove and second limiting groove.

[0018] As an optional scheme of the seat pocket of the utility model, the leg support comprises a foot pedal connecting base, the foot pedal connecting base is rotationally connected with the base, the foot pedal connecting base is provided with a first groove, the base is provided with a second groove, the first groove and the second groove are opposite, and the locking member and the rotating member move along the rotating axis in the space formed by the first groove and the second groove;

[0019] The transmission assembly further comprises a transmission member, both ends of the transmission member are connected with the unlocking member and the rotating member respectively, and the unlocking member drives the rotating member to rotate through the transmission member.

[0020] The leg support further comprises a foot pedal connecting pipe connected with the foot pedal connecting base, a foot pedal space is formed between the foot pedal connecting pipe and the foot pedal connecting base, the unlocking member is arranged in the foot pedal connecting pipe, and the transmission member is located in the foot pedal connecting pipe.

[0021] As an optional embodiment of the seat of this utility model, the locking mechanism includes a locking member, which is movably disposed on the rotation axis of the base and the leg rest. The unlocking mechanism further includes a first elastic member, which is sandwiched between the locking member and the base. The locking member can move along the rotation axis under the elastic force of the first elastic member, so that the locking member switches from the unlocked position to the locked position.

[0022] As an optional solution for the seat of this utility model, the unlocking member is rotatably connected to the leg rest. The unlocking member has an open position and a closed position. During the process of the unlocking member rotating from the closed position to the open position, the transmission component can drive the locking mechanism to switch from the locked position to the unlocked position.

[0023] The unlocking mechanism further includes a second elastic element, one end of which is connected to the unlocking member and the other end of which is connected to the leg support. The unlocking member can rotate from the open position to the closed position under the elastic force of the second elastic element.

[0024] As an optional solution for the seat of this utility model, the leg rest is provided with a first rotation limiting structure and the base is provided with a second rotation limiting structure. The first rotation limiting structure and the second rotation limiting structure cooperate to limit the rotation range of the leg rest relative to the base.

[0025] The first rotation limiting structure includes a rotation limiting protrusion, and the second rotation limiting structure includes an arc-shaped groove. The rotation limiting protrusion and the arc-shaped groove are slidably engaged. The angular range of the arc where the arc-shaped groove is located is the rotation range of the leg support relative to the base.

[0026] As an optional embodiment of the seat of this utility model, the base has a seat surface and a bottom surface that are arranged opposite to each other, and the leg rest can be rotated to approach the bottom surface of the base.

[0027] On the other hand, a stroller is provided, including a frame and a seat as described above, the seat being disposed on the frame.

[0028] The beneficial effects of this utility model are as follows:

[0029] The seat and stroller provided by this utility model allow for easy adjustment of the footrest angle or folding of the leg rest. Simply operate the unlocking mechanism, which drives the locking mechanism to the unlock position via a transmission component, thus unlocking the base from the leg rest. The angle or folding state can then be adjusted by rotating the leg rest. After adjusting the angle or folding, operate the unlocking mechanism again, which drives the locking mechanism to the locked position via the transmission component, thus securing the leg rest. The operation is simple, allowing for one-handed adjustment of the footrest position and providing a better user experience. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the seat provided in a specific embodiment of the present utility model;

[0032] Figure 2 This is a first exploded view of the seat provided in a specific embodiment of this utility model;

[0033] Figure 3 This is a second exploded view of the seat provided in a specific embodiment of the present utility model;

[0034] Figure 4 yes Figure 2 A magnified view of a section at point A in the middle;

[0035] Figure 5 This is an exploded view of the foot pedal connecting seat provided in a specific embodiment of this utility model;

[0036] Figure 6 This is a schematic diagram of the rotating component provided in a specific embodiment of the present utility model;

[0037] Figure 7 This is a cross-sectional view of the rotatable connection between the foot pedal connector and the base, provided in a specific embodiment of this utility model.

[0038] Figure 8 This is an exploded view of the leg support and unlocking mechanism provided in a specific embodiment of this utility model;

[0039] Figure 9 This is a structural schematic diagram of the unlocking component and the fixing base provided in a specific embodiment of this utility model;

[0040] Figure 10This is a diagram showing the first folding process of the seat pocket provided in a specific embodiment of this utility model;

[0041] Figure 11 This is a diagram showing the second folding process of the seat pocket provided in a specific embodiment of this utility model;

[0042] Figure 12 This is a diagram showing the third folding process of the seat pocket provided in a specific embodiment of this utility model;

[0043] Figure 13 This is a diagram showing the fourth folding process of the seat pocket provided in a specific embodiment of this utility model;

[0044] Figure 14 This is a diagram showing the fifth folding process of the seat provided in a specific embodiment of this utility model;

[0045] Figure 15 This is a schematic diagram of the seat folded to its final state according to a specific embodiment of this utility model.

[0046] In the picture:

[0047] 1-Base; 2-Leg rest; 4-Unlocking mechanism; 5-Backrest; 6-Armrest;

[0048] 11-Second limiting groove; 12-Arc-shaped groove; 13-Second groove; 14-Second shaft segment;

[0049] 21-Foot pedal connector; 22-Foot pedal connecting tube; 23-Pedal;

[0050] 211-Guide protrusion; 212-First limiting groove; 213-Rotation limiting protrusion; 214-First groove; 215-Anti-rotation

[0051] 216 - Protrusion; 217 - Upper shell; 218 - Lower shell; 218 - First shaft segment;

[0052] 221-Fixed base; 222-Second rotating shaft; 231-Hook and clip part;

[0053] 2111-First guide ramp; 2211-Wire groove; 2161-Connecting arm; 2171-Arc-shaped support;

[0054] 31-Locking component; 311-Limiting tooth;

[0055] 41-Unlocking component; 42-Transmission assembly; 43-Second elastic component;

[0056] 411-Second mounting slot; 412-Operating part; 413-Rotation hole;

[0057] 421 - Transmission component; 422 - Rotating component;

[0058] 4211 - First mounting section; 4212 - Second mounting section;

[0059] 4221-Guide groove; 42211-Second guide slope; 4222-Anti-rotation slot. Detailed Implementation

[0060] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0061] In the description of this utility model, it should be noted that the terms "center," "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. 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0062] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] like Figures 1 to 9 As shown, this embodiment provides a seat that reduces the difficulty of adjusting the footrest support angle and improves ease of use. The seat includes a base 1, a leg rest 2, a locking mechanism, and an unlocking mechanism 4.

[0064] Among them, see Figure 1 , Figure 2 and Figure 3The leg support 2 is rotatably connected to the base 1. A locking mechanism is disposed between the leg support 2 and the base 1. The locking mechanism has a locked position for locking the leg support 2 to the base 1 and an unlocked position for unlocking the leg support 2 to the base 1. The unlocking mechanism 4 includes an unlocking component 41 and a transmission assembly 42. The unlocking component 41 is movably disposed on the leg support 2. The transmission assembly 42 engages with both the unlocking component 41 and the locking mechanism, so that when the unlocking component 41 is operated, the transmission assembly 42 can drive the locking mechanism to move toward the unlocked position.

[0065] When it is necessary to adjust the foot pedal angle or fold the leg rest 2 for storage, simply operate the unlocking component 41. This will cause the unlocking component 41 to drive the locking mechanism to the unlocked position via the transmission component 42, thus unlocking the base 1 from the leg rest 2. The angle or folding state can then be adjusted by rotating the leg rest 2. After adjusting the angle or folding, operate the unlocking component 41 again. This will cause the unlocking component 41 to drive the locking mechanism to the locked position via the transmission component 42, thus securing the leg rest 2. The operation is simple, allowing for one-handed adjustment of the foot pedal position and providing a better user experience.

[0066] In this embodiment, "between the leg support 2 and the base 1" refers to the rotatable connection position between the leg support 2 and the base 1. If the leg support 2 and the base 1 are directly rotatably connected, the locking mechanism can be installed at the rotatable connection point between the leg support 2 and the base 1. If the leg support 2 and the base 1 are indirectly rotatably connected through an intermediate component, the locking mechanism can also be disposed on the intermediate component.

[0067] Optionally, see Figure 3 The locking mechanism includes a locking element 31, which is movably mounted on the rotation axis of the base 1 and the leg support 2. Operating the unlocking element 41 causes the transmission assembly 42 to move the locking element 31 along the rotation axis, switching the locking element 31 between a locked position and an unlocked position. In other words, locking or unlocking the leg support 2 and the base 1 is achieved by driving the locking element 31 to move linearly. The driving principle is simple and easy to implement.

[0068] Optionally, see Figure 2 and Figure 3 The transmission assembly 42 includes a rotating member 422 coaxially arranged with the locking member 31, and the rotating member 422 can rotate around the rotation axis. A first guide portion is provided on the leg support 2, and a second guide portion is provided on the rotating member 422. When the rotating member 422 rotates, the first guide portion and the second guide portion cooperate to cause the rotating member 422 to drive the locking member 31 to move along the rotation axis. That is, while driving the rotating member 422 to rotate around the rotation axis, the rotating member 422 moves linearly along the rotation axis direction under the cooperation of the first guide portion and the second guide portion, thereby pushing the locking member 31 to move linearly along the rotation axis direction simultaneously, realizing the switching of the locking member 31 between the locked position and the unlocked position.

[0069] Furthermore, the transmission assembly 42 also includes a transmission member 421, with the two ends of the transmission member 421 connected to the unlocking member 41 and the rotating member 422, respectively. The unlocking member 41 drives the rotating member 422 to rotate through the transmission member 421. That is, when the unlocking member 41 is operated, the unlocking member 41 drives the transmission member 421 to move, which in turn drives the rotating member 422 to rotate around the rotation axis. This causes the rotating member 422 to push the locking member 31 to move synchronously along the rotation axis, thus realizing the linkage between the unlocking member 41 and the rotating member 422 through the transmission member 421, thereby driving the locking member 31 to move.

[0070] Optionally, see Figure 1 and Figure 2 The leg rest 2 includes a foot pedal connecting seat 21, which is rotatably connected to the base 1. (See reference...) Figure 4 and Figure 5 The foot pedal connector 21 has a first groove 214, and the base 1 has a second groove 13. The first groove 214 and the second groove 13 are directly opposite each other. The locking member 31 and the rotating member 422 move along the rotation axis within the space formed by the first groove 214 and the second groove 13. The arrangement of the first groove 214 and the second groove 13 provides installation space and movement space for the locking member 31 and the rotating member 422, allowing the locking member 31 to smoothly switch between the locked position and the unlocked position.

[0071] For example, the base 1 includes a seat plate and limiting plates disposed on both sides of the seat plate, with the two limiting plates and the seat plate forming a seating space. A rotating connection portion is provided on the front side of the seat plate, and a second groove 13 is provided on the rotating connection portion.

[0072] Furthermore, each end of the foot pedal connecting seat 21 is provided with a first groove 214. Correspondingly, the seat plate is provided with two rotating connecting parts, which are rotatably connected to the two ends of the foot pedal connecting seat 21 one by one, thereby improving the stability of the rotational connection between the leg support 2 and the base 1.

[0073] See Figure 1 , Figure 2 and Figure 3 The leg rest 2 also includes a foot pedal connecting tube 22 connected to the foot pedal connecting seat 21. A foot pedal space is formed between the foot pedal connecting tube 22 and the foot pedal connecting seat 21. The unlocking member 41 is disposed in the foot pedal connecting tube 22, and the transmission member 421 is located inside the foot pedal connecting tube 22. This arrangement can hide the transmission member 421, ensuring a neat and aesthetically pleasing exterior for the seat. In this embodiment, the foot pedal connecting tube 22 is U-shaped, and each end of the foot pedal connecting seat 21 is provided with a connecting arm 2161 (e.g., ...). Figure 5 As shown, the two straight arms of the U-shaped foot pedal connecting tube 22 are connected one-to-one with the two connecting arms 2161, so that the foot pedal connecting tube 22 and the foot pedal connecting seat 21 form the foot pedal space mentioned above, providing a place for the child's feet and legs.

[0074] Further, see Figure 5 The foot pedal connector 21 includes an upper shell 216 and a lower shell 217 that interlock, which facilitates the assembly of the locking mechanism and the unlocking mechanism 4, and also reduces the weight of the foot pedal connector 21, making it easier to fold and carry in the seat bag. For example, the upper shell 216 and the lower shell 217 can be connected by a snap-fit ​​structure, or they can be fixed by fasteners such as screws.

[0075] See Figure 1 and Figure 2 The leg support 2 also includes a footrest 23, which is located in the middle of the footrest connecting tube 22 and is used to support the foot. In this embodiment, the footrest 23 is L-shaped, with one end connected and fixed to the footrest connecting tube 22 and the other end extending towards the base 1 to support the child's foot.

[0076] Furthermore, the unlocking component 41 is also located in the middle of the foot pedal connecting tube 22, integrated with the pedal 23 in the same area of ​​the foot pedal connecting tube 22, making the layout more aesthetically pleasing.

[0077] For example, such as Figure 8 As shown, the pedal 23 is provided with a hook-and-loop fastener 231, which hooks onto the foot pedal connecting tube 22 and is fixed to the foot pedal connecting tube 22 by fasteners (such as screws). The number of hook-and-loop fasteners 231 can be adjusted according to actual needs. For example, two hook-and-loop fasteners 231 can be provided at intervals on the pedal 23 to ensure a secure connection between the pedal 23 and the foot pedal connecting tube 22. Figure 1 The unlocking component 41 is located between the two hook parts 231, and the layout is reasonable and aesthetically pleasing.

[0078] Optionally, see Figure 4 , Figure 5 and Figure 7A first shaft segment 218 is provided in the first groove 214 of the foot pedal connecting seat 21, and a second shaft segment 14 is provided in the second groove 13 of the base 1. After the foot pedal connecting seat 21 is connected to the base 1, the first shaft segment 218 and the second shaft segment 14 are coaxially connected. The axis of the first shaft segment 218 and the second shaft segment 14 is the aforementioned rotation axis. The rotating component 422 and the locking component 31 are coaxially arranged on the first rotating shaft formed after the first shaft segment 218 and the second shaft segment 14 are connected, and are located in the space formed by the first groove 214 and the second groove 13. The transmission component 421 is led out through the foot pedal connecting tube 22 and extends into the space formed by the first groove 214 and the second groove 13 to connect with the rotating component 422. During the process of switching from the locked position to the unlocked position, the unlocking component 41 pulls the transmission component 421 to drive the rotating component 422 to rotate. While the rotating component 422 rotates around the first rotating shaft, it moves axially under the cooperation of the first guide part and the second guide part until the rotating component 422 pushes the locking component 31 to the right into the second groove 13, and the locking component 31 disengages from the first groove 214, thus completing the unlocking.

[0079] Furthermore, the locking mechanism is provided in two sets, which are located at both ends of the foot pedal connecting seat 21, thereby improving the reliability of the leg support 2 after locking with the base 1.

[0080] For example, both the first shaft segment 218 and the second shaft segment 14 are hollow structures, and a connecting shaft is inserted through the cavity of the first shaft segment 218 and the second shaft segment 14 to stably connect the foot pedal connecting seat 21 to the base 1.

[0081] Further, see Figure 5 An arc-shaped support 2171 is provided on the lower shell 217 of the foot pedal connector 21. The rotating part 422 can roll with the arc-shaped support 2171. The arc-shaped support 2171 makes the rotation of the rotating part 422 more stable.

[0082] Optionally, the transmission component 421 is a traction rope, such as a steel wire rope, which has a certain degree of flexibility and can adapt to deformation when the rotating component 422 rotates, ensuring that the rotating component 422 rotates smoothly.

[0083] Optionally, see Figure 6 The rotating component 422 is provided with a first mounting groove (not shown), and the transmission component 421 is provided with a first mounting part 4211. The first mounting part 4211 is fitted into the first mounting groove to connect the transmission component 421 and the rotating component 422. Further, the rotating component 422 is also provided with a first lead groove (not shown) communicating with the first mounting groove. A portion of the transmission component 421 is located within the first lead groove to prevent the transmission component 421 from interfering with the rotation of the rotating component 422. Exemplarily, the first mounting part 4211 is a cylindrical structure, and the first mounting groove is a cylindrical groove, with the cylindrical structure inserted into the cylindrical groove.

[0084] Optionally, one of the first guide portion and the second guide portion is a guide protrusion 211, and the other is a guide groove 4221. The guide protrusion 211 can be inserted into the guide groove 4221. The guide protrusion 211 has a first guide slope 2111, and the inner wall of the guide groove 4221 has a second guide slope 42211. The first guide slope 2111 and the second guide slope 42211 are in sliding engagement. During the rotation of the rotating member 422, the first guide slope 2111 and the second guide slope 42211 abut against each other and slide in engagement with the rotating member 422 as it rotates. Under the mutual pushing action of the first guide slope 2111 and the second guide slope 42211, the rotating member 422 is driven to move along the rotation axis, thereby improving the axial movement accuracy of the rotating member 422 and the locking member 31.

[0085] In this embodiment, see Figure 5 and Figure 6 A guide protrusion 211 is disposed within the first groove 214 of the foot pedal connecting seat 21, and a guide groove 4221 is disposed on the rotating member 422. Both the first guide inclined surface 2111 and the second guide inclined surface 42211 are arranged in an arc shape along the rotation direction of the rotating member 422 to accommodate its rotation. For example, three guide protrusions 211 are spaced apart circumferentially within the first groove 214, and each guide protrusion 211 extends in an arc shape along the rotation direction of the rotating member 422. Correspondingly, three guide grooves 4221 are disposed on the rotating member 422, each extending in an arc shape along the rotation direction of the rotating member 422. The three guide protrusions 211 and the three guide grooves 4221 slide in a one-to-one correspondence, improving the axial movement stability of the rotating member 422. The number of guide protrusions 211 and guide grooves 4221 can be increased or decreased according to actual needs, and is not limited to the number and distribution methods listed in this embodiment.

[0086] In other embodiments, the guide protrusion 211 may be provided on the rotating member 422, and the guide groove 4221 may be provided on the foot pedal connecting seat 21.

[0087] Optionally, the unlocking mechanism 4 further includes a first elastic element, which is sandwiched between the locking member 31 and the base 1. The locking member 31 can move along the rotation axis under the elastic force of the first elastic element, so that the locking member 31 switches from the unlocked position to the locked position. The first elastic element allows the locking member 31 to automatically reset to the locked position, enabling the locking member 31 to smoothly switch between the locked and unlocked positions. Specifically, during the unlocking process, the rotating member 422 axially pushes the locking member 31 into the second groove 13, while compressing the first elastic element to deform and accumulate elastic potential energy. During the locking process, the force exerted by the transmission member 421 on the rotating member 422 disappears. At this time, the first elastic element releases its elastic potential energy, causing the locking member 31 to move away from the second groove 13 under the elastic force of the first elastic element until the locking member 31 pushes the rotating member 422 axially into place, thus completing the locking.

[0088] For example, the first elastic element is a spring, which can be sleeved on the second shaft segment 14 in the second groove 13, with the two ends of the spring abutting against the locking element 31 and the bottom wall of the second groove 13, respectively.

[0089] Optionally, see Figure 4 and Figure 5 The locking element 31 has a limiting tooth 311, the leg support 2 has a first limiting groove 212, and the base 1 has a second limiting groove 11. In the locked position, the limiting tooth 311 engages with both the first limiting groove 212 and the second limiting groove 11. In the unlocked position, the limiting tooth 311 disengages from the first limiting groove 212 and engages with the second limiting groove 11. That is, locking and unlocking are achieved through the cooperation of the limiting tooth 311 with the first limiting groove 212 and the second limiting groove 11. The structure is simple and easy to implement. Specifically, when the locking element 31 moves along the rotation axis until the limiting tooth 311 completely disengages from the first limiting groove 212, unlocking is completed, and the leg support 2 can rotate relative to the base 1. When the locking element 31 moves along the rotation axis until it engages with both the first limiting groove 212 and the second limiting groove 11, locking is completed, and the leg support 2 cannot rotate relative to the base 1.

[0090] In this embodiment, the locking member 31 is an annular member, with a limiting tooth 311 protruding from the outer peripheral surface of the locking member 31. A first limiting groove 212 is disposed on the outer periphery of the first groove 214 and communicates with the first groove 214; a second limiting groove 11 is disposed on the outer periphery of the second groove 13 and communicates with the second groove 13. The limiting tooth 311 is always engaged with the second limiting groove 11. The rotating member 422 only needs to axially push the locking member 31 to move, causing the limiting tooth 311 to disengage from or engage with the first limiting groove 212, to achieve unlocking or locking. The first groove 214 and the second groove 13 provide axial movement space for the rotating member 422 and the locking member 31. Specifically, in the locked position, the rotating member 422 is completely located within the first groove 214, and a portion of the locking member 31 is located within the first groove 214, while another portion is located within the second groove 13 (e.g., ...). Figure 7 As shown), the limiting tooth 311 engages simultaneously with the first limiting groove 212 and the second limiting groove 11. During the process of switching to the unlocked position, the rotating part 422 gradually moves axially out of the first groove 214, while simultaneously pushing the locking part 31 to move axially into the second groove 13. When the locking part 31 is completely moved out of the first groove 214 (i.e., the limiting tooth 311 disengages from the first limiting groove 212), the unlocking is completed, and the leg support 2 can rotate relative to the base 1 around the rotation axis.

[0091] Existing seat footrests typically can only maintain a certain tilt angle, resulting in poor flexibility. To address this issue, in this embodiment, refer to... Figure 4 and Figure 5 Multiple first limiting grooves 212 and multiple second limiting grooves 11 are provided. The multiple first limiting grooves 212 are distributed circumferentially at intervals along the rotation axis. The multiple second limiting grooves 11 correspond one-to-one with the multiple first limiting grooves 212. The limiting teeth 311 can selectively engage with the corresponding first limiting groove 212 and second limiting groove 11. The multiple first limiting grooves 212 and multiple second limiting grooves 11 correspond to multiple rotation angles of the leg rest 2, corresponding to multiple positions, which can realize multi-angle adjustment of the leg rest 2, improve the flexibility of the seat, and meet the different usage needs of users.

[0092] For example, a first limiting groove 212 (second limiting groove 11) can be set at intervals of 30°, 35°, 40°, etc., so that the leg support 2 can be adjusted by 30°, 35°, 40°, etc. in each position.

[0093] Further, see Figure 4 The locking member 31 is provided with a plurality of limiting teeth 311 at intervals along the circumferential direction. The plurality of limiting teeth 311 correspond one-to-one with the plurality of first limiting grooves 212. This arrangement enables the plurality of limiting teeth 311 to engage one-to-one with the plurality of first limiting grooves 212 and second limiting grooves 11, thereby improving the locking reliability of the locking mechanism.

[0094] Optionally, the rotating member 422 is provided with a first anti-rotation structure, and the leg support 2 is provided with a second anti-rotation structure. When in the locked position, the first and second anti-rotation structures cooperate to restrict the rotation of the rotating member 422. That is, when the locking member 31 switches to the locked position, the first and second anti-rotation structures cooperate to restrict the rotating member 422 from continuing to rotate, preventing the rotating member 422 from exceeding its rotation range, thereby ensuring that the rotating member 422 and the locking member 31 are stably kept in the locked position, and ensuring that the leg support 2 is securely locked to the base 1.

[0095] In this embodiment, see Figure 5 and Figure 6 The first anti-rotation structure is an anti-rotation groove 4222 provided on the rotating member 422, and the second anti-rotation structure is an anti-rotation protrusion 215 provided in the first groove 214 of the foot pedal connecting seat 21. When locked, the groove wall of the anti-rotation groove 4222 abuts against the anti-rotation protrusion 215, restricting the rotation of the rotating member 422.

[0096] Furthermore, the anti-rotation groove 4222 is an arc-shaped notch provided on the outer peripheral wall of the rotating member 422. The arc-shaped notch has a certain arc length. During the unlocking process, when the rotating member 422 rotates, the anti-rotation protrusion 215 can move relative to the arc-shaped notch along the arc length direction. As the rotating member 422 moves axially, the anti-rotation protrusion 215 gradually disengages from the arc-shaped notch. Similarly, during the locking process, as the rotating member 422 moves axially, the anti-rotation protrusion 215 is inserted into the arc-shaped notch and can move circumferentially relative to the arc-shaped notch until the anti-rotation protrusion 215 abuts against the wall surface at the end of the arc-shaped notch, thereby restricting the rotating member 422 from continuing to rotate.

[0097] In other embodiments, anti-rotation protrusions 215 may be provided on the rotating member 422, and anti-rotation grooves 4222 may be provided on the foot pedal connecting seat 21, as long as the rotation stroke of the rotating member 422 can be limited.

[0098] Optionally, the leg rest 2 is provided with a first rotation limiting structure, and the base 1 is provided with a second rotation limiting structure. The first and second rotation limiting structures cooperate to limit the rotation range of the leg rest 2 relative to the base 1. The first and second rotation limiting structures ensure that the leg rest 2 can only rotate within a limited range, preventing the leg rest 2 from swinging arbitrarily and improving the safety of the seat.

[0099] Optionally, the first rotation limiting structure includes a rotation limiting protrusion 213, and the second rotation limiting structure includes an arc-shaped groove 12. The rotation limiting protrusion 213 and the arc-shaped groove 12 are slidably engaged, and the angle range of the arc in which the arc-shaped groove 12 is located is the rotation range of the leg support 2 relative to the base 1. Specifically, in this embodiment... Figure 3 and Figure 5A rotation-limiting protrusion 213 is provided on the foot pedal connecting seat 21, and an arc-shaped groove 12 is formed on the rotating connecting part of the base 1. The rotation-limiting protrusion 213 can only move within the arc-shaped groove 12 to limit the rotation range of the foot pedal connecting seat 21 relative to the base 1. Furthermore, the arc of the arc-shaped groove 12 is centered on the rotation axis to ensure smooth rotation of the foot pedal connecting seat 21.

[0100] In other embodiments, an arc-shaped groove 12 may be provided on the foot pedal connecting seat 21, and a rotation-limiting protrusion 213 may be provided on the base 1, as long as the rotation range of the leg support 2 can be limited.

[0101] For example, the included angle of the arc of the arc groove 12 is 180°, that is, the leg support 2 can rotate relative to the base 1 within the range of 0° to 180°. In other embodiments, the rotation angle range of the leg support 2 can also be adaptively designed according to actual needs, and is not limited to the range listed in this embodiment.

[0102] Optionally, the unlocking component 41 is rotatably connected to the leg rest 2. The unlocking component 41 has an open position and a closed position. During the rotation of the unlocking component 41 from the closed position to the open position, it enables the transmission component 42 to drive the locking mechanism to switch from the locked position to the unlocked position. Unlocking via rotation allows for one-handed operation, making the unlocking process simpler and less strenuous. The closed position refers to the position where the unlocking component 41 is in a closed state. Figure 1 and Figure 10 The "open" position, as shown, refers to the unlocking component 41 being in the position shown. Figure 11 The state shown.

[0103] Specifically, see Figure 8 and Figure 9 A fixed seat 221 is provided on the foot pedal connecting tube 22. The unlocking member 41 is rotatably connected to the fixed seat 221 via a second rotating shaft 222 to realize the rotational opening and closing of the unlocking member 41. Specifically, the unlocking member 41 has a rotating hole 413, and the second rotating shaft 222 passes through the rotating hole 413 and rotatably engages with the rotating hole 413. An installation opening is provided at the middle position of the foot pedal connecting tube 22, and the fixed seat 221 is fitted into the installation opening. Further, a wire groove 2211 is provided on the fixed seat 221, and the transmission member 421 of the transmission assembly 42 extends out through the wire groove 2211 and connects to the unlocking member 41.

[0104] Continue reading Figure 8 and Figure 9The unlocking component 41 is provided with a second mounting groove 411, and the end of the transmission component 421 extending out of the wire-passing groove 2211 is provided with a second mounting part 4212. The second mounting part 4212 is fixed in the second mounting groove 411 to connect the transmission component 421 and the unlocking component 41. In this embodiment, the second mounting groove 411 and the rotating hole 413 are spaced apart in the rotation radius direction of the unlocking component 41 to ensure that the unlocking component 41 can drive the transmission component 42 to move during rotation, thereby causing the transmission component 421 to drive the rotating component 422 to rotate.

[0105] Furthermore, the unlocking member 41 is also provided with a second lead groove communicating with the second mounting groove 411, and part of the transmission member 421 is located in the second lead groove to prevent the transmission member 421 from interfering with the rotation of the unlocking member 41. For example, the second mounting part 4212 is a cylindrical structure, the second mounting groove 411 is a cylindrical groove, and the cylindrical structure is inserted into the cylindrical groove.

[0106] In this embodiment, the unlocking member 41 is a plate-shaped structure, and its free end is provided with an operating part 412 for easy gripping of the unlocking member 41 during unlocking operations. Exemplarily, the operating part 412 is a flange that is bent and connected to the unlocking member 41.

[0107] Optionally, such as Figure 8 and Figure 9 As shown, the unlocking mechanism 4 also includes a second elastic element 43. One end of the second elastic element 43 is connected to the unlocking element 41, and the other end is connected to the leg support 2. The unlocking element 41 can rotate from the open position to the closed position under the elastic force of the second elastic element 43. The second elastic element 43 makes it easier for the unlocking element 41 to automatically rotate from the open position to the closed position during locking operations.

[0108] For example, the second elastic element 43 is a torsion spring, which is sleeved on the second rotating shaft 222. The first torsion arm of the torsion spring is connected to the unlocking element 41, and the second torsion arm of the torsion spring is connected to the fixing seat 221.

[0109] When the existing footrest on the seat is folded and stored, it can usually only rotate forward and come together with the backrest 5. The structure is large after folding, which is inconvenient to carry and store.

[0110] To address the aforementioned issues, in this embodiment, the base 1 has a seat surface and a bottom surface positioned opposite each other, and the leg rest 2 can rotate to be close to the bottom surface of the base 1. That is, the leg rest 2 can be folded under the base 1 (e.g., Figure 14 and Figure 15 As shown in the figure, it is attached to the bottom surface of the base 1, which effectively reduces the overall volume of the seat after folding, making it convenient to carry and store. Among them, after the leg rest 2 is folded, the unlocking piece 41 is rotated from the open position to the closed position, so that the locking mechanism moves along the rotation axis direction under the elastic force of the first elastic piece and switches to the locked position, locking the leg rest 2 in the current folded state.

[0111] Furthermore, the leg support 2 can rotate within a range of 0° to 180°, such as Figure 1 , Figure 10 and Figure 15 As shown, the leg rest 2 can be rotated and folded from a position flush with the seat surface of the base 1 until it is against the bottom surface of the base 1.

[0112] Optionally, see Figure 1 , Figure 2 and Figure 4 The seat also includes a backrest 5 and an armrest 6, both of which are rotatably connected to the base 1. Both the backrest 5 and the armrest 6 can rotate to be close to the base 1. In this embodiment, both the backrest 5 and the armrest 6 can rotate forward to be close to the base 1, further reducing the overall volume of the seat after folding, making it convenient to carry when going out.

[0113] The rotational connection between the backrest 5 and armrest 6 and the base 1 can be a conventional rotational connection, which will not be described in detail here. Of course, the rotational connection between the backrest 5 and armrest 6 and the base 1 can also be the rotational connection between the leg rest 2 and the base 1 in this embodiment.

[0114] See Figures 10 to 15 , seat from Figure 10 The state shown is folded to the point where... Figure 15 The folding process for the state shown is as follows:

[0115] First, along Figure 10 Rotate the unlocking member 41 in the m direction to move it from the closed position to the open position (e.g., Figure 11 (As shown). During this process, the unlocking component 41 pulls the transmission assembly 42, causing the locking mechanism to move along the rotation axis, switching the locking mechanism to the unlocked position. At this time, the leg support 2 can rotate relative to the base 1. Subsequently, along... Figure 11 and Figure 12 Rotate leg support 2 in the middle n direction until leg support 2 is rotated below base 1, as shown. Figure 13 As shown. Then, along Figure 13 Rotate the armrest 6 in the center o direction until it is close to the base 1, as shown. Figure 14 As shown, the unlocking element 41 is then rotated from the open position to the closed position, and the locking mechanism moves along the rotation axis to switch to the locked position, so that the leg rest 2 is stably maintained in the current folded state. Finally, along... Figure 14 Rotate the backrest 5 in the middle p direction until it is close to the base 1, as shown. Figure 15 As shown, the seat is folded to its final state, and the folded seat has a smaller volume.

[0116] This embodiment also provides a stroller, including a frame and a seat as described above, with the seat disposed on the frame. The stroller using this seat allows for multi-angle adjustment of the leg rest 2, making it more flexible to use. Furthermore, when adjusting the footrest angle of the leg rest 2 or folding it for storage, simply operate the unlocking component 41. The unlocking component 41 drives the locking mechanism to move to the unlocked or locked position via the transmission component 42, thus unlocking or securing the base 1 and leg rest 2. The operation is simple, allowing for one-handed adjustment of the footrest position, providing a better user experience. In addition, the leg rest 2 can be folded under the base 1 and rest against the bottom surface of the base 1. The backrest 5 and armrest 6 can both be rotated forward to align with the base 1, effectively reducing the overall volume of the folded seat for easy carrying and storage.

[0117] 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. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A seat, characterized in that, include: Base; Leg rests are rotatably connected to the base. A locking mechanism is disposed between the leg rest and the base, the locking mechanism having a locking position for locking the leg rest and the base and an unlocking position for unlocking the leg rest and the base; The unlocking mechanism includes an unlocking component and a transmission assembly. The unlocking component is movably disposed on the leg rest. The transmission assembly engages with both the unlocking component and the locking mechanism, such that when the unlocking component is operated, the transmission assembly can drive the locking mechanism to move toward the unlocking position.

2. The seat according to claim 1, characterized in that, The locking mechanism includes a locking element, which is movably disposed on the rotation axis of the base and the leg rest; The transmission assembly includes a rotating member coaxially arranged with the locking member. The rotating member can rotate around the rotation axis. The leg support is provided with a first guide portion, and the rotating member is provided with a second guide portion. When the rotating member rotates, the first guide portion and the second guide portion cooperate to cause the rotating member to drive the locking member to move along the rotation axis. The rotating component is provided with a first anti-rotation structure, and the leg support is provided with a second anti-rotation structure. When in the locked position, the first anti-rotation structure and the second anti-rotation structure cooperate to restrict the rotation of the rotating component.

3. The seat according to claim 2, characterized in that, One of the first guide portion and the second guide portion is a guide protrusion, and the other of the first guide portion and the second guide portion is a guide groove. The guide protrusion can be inserted into the guide groove. The guide protrusion has a first guide slope, and the inner wall of the guide groove has a second guide slope. The first guide slope and the second guide slope are in sliding engagement.

4. The seat according to claim 2, characterized in that, The locking component is provided with a limiting tooth, the leg support is provided with a first limiting groove, and the base is provided with a second limiting groove. When the locking position is reached, the limiting tooth engages with both the first limiting groove and the second limiting groove. When the unlocking position is reached, the limiting tooth disengages from the first limiting groove and engages with the second limiting groove. Multiple first and second limiting grooves are provided. The multiple first limiting grooves are distributed circumferentially along the rotation axis. The multiple second limiting grooves correspond one-to-one with the multiple first limiting grooves. The limiting teeth can selectively engage with the corresponding first and second limiting grooves.

5. The seat according to claim 2, characterized in that, The leg support includes a foot pedal connecting seat, which is rotatably connected to the base. The foot pedal connecting seat is provided with a first groove, and the base is provided with a second groove. The first groove and the second groove are directly opposite each other. The locking member and the rotating member move along the rotation axis within the space formed by the first groove and the second groove. The transmission assembly further includes a transmission component, the two ends of which are respectively connected to the unlocking component and the rotating component, and the unlocking component drives the rotating component to rotate through the transmission component; The leg rest also includes a foot pedal connecting tube connected to the foot pedal connecting seat, and a foot pedal space is formed between the foot pedal connecting tube and the foot pedal connecting seat. The unlocking member is disposed in the foot pedal connecting tube, and the transmission member is located inside the foot pedal connecting tube.

6. The seat according to any one of claims 1-5, characterized in that, The locking mechanism includes a locking member movably disposed on the rotation axis of the base and the leg rest. The unlocking mechanism further includes a first elastic member sandwiched between the locking member and the base. The locking member can move along the rotation axis under the elastic force of the first elastic member, so that the locking member switches from the unlocked position to the locked position.

7. The seat according to any one of claims 1-5, characterized in that, The unlocking component is rotatably connected to the leg rest. The unlocking component has an open position and a closed position. During the process of the unlocking component rotating from the closed position to the open position, the transmission component can drive the locking mechanism to switch from the locked position to the unlocked position. The unlocking mechanism further includes a second elastic element, one end of which is connected to the unlocking member and the other end of which is connected to the leg support. The unlocking member can rotate from the open position to the closed position under the elastic force of the second elastic element.

8. The seat according to any one of claims 1-5, characterized in that, The leg rest is provided with a first rotation limiting structure, and the base is provided with a second rotation limiting structure. The first rotation limiting structure and the second rotation limiting structure cooperate to limit the rotation range of the leg rest relative to the base. The first rotation limiting structure includes a rotation limiting protrusion, and the second rotation limiting structure includes an arc-shaped groove. The rotation limiting protrusion and the arc-shaped groove are slidably engaged. The angular range of the arc where the arc-shaped groove is located is the rotation range of the leg support relative to the base.

9. The seat according to any one of claims 1-5, characterized in that, The base has a seat surface and a bottom surface that are arranged opposite to each other, and the leg rest can rotate to come close to the bottom surface of the base.

10. A stroller, characterized in that, It includes a frame and a seat as described in any one of claims 1-9, the seat being disposed on the frame.

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