Stroller

Abstract

The utility model discloses a baby carriage, baby carriage includes: frame, seat unit and locking piece. The frame is equipped with the mounting seat, and the mounting seat is equipped with the rotation hole and at least two sets of locking groove groups, and each locking groove group is located at the outer circumferential side of the rotation hole, and the at least two sets of locking groove groups are arranged along the circumferential direction interval of the rotation hole, and each locking groove group includes the first locking groove and the second locking groove located at the radial opposite sides of the rotation hole. The seat unit includes a support bracket, and the support bracket includes a support seat, and the support seat is provided with a rotating shaft, and the rotating shaft is rotatably arranged in the rotation hole, and the central axis of the rotating shaft extends along the left and right directions. The locking piece is arranged on the support seat and can move between the unlocking position and the locking position relative to the support seat, and the locking piece is provided with a first locking protrusion and a second locking protrusion. According to the baby carriage of the utility model embodiment, the locking strength of the seat unit can be increased, the shaking of the seat unit when being in the locking position can be reduced, and the comfort and safety of the seat unit can be improved.

Description

Technical Field

[0001] This utility model relates to the field of infant and toddler products, and in particular to a stroller. Background Technology

[0002] Strollers are widely used utility vehicles designed to facilitate infants' outdoor activities. To meet diverse needs, strollers in this technology often feature adjustable seat angles to accommodate different modes, such as sleep mode or seat mode. However, strollers with adjustable seat angles in this technology are prone to significant wobbling when the seat is locked, leading to reduced comfort and safety; therefore, improvements are needed. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a stroller whose seat unit, when in the locked position, has high locking strength, minimal wobbling, and high comfort and safety.

[0004] A stroller according to an embodiment of the present invention includes: a frame, wherein a mounting seat is provided on the frame, the mounting seat has a rotating hole and at least two sets of locking grooves, each set of locking grooves being located on the outer periphery of the rotating hole, and the at least two sets of locking grooves being arranged at intervals along the circumference of the rotating hole, each set of locking grooves including a first locking groove and a second locking groove located on opposite radial sides of the rotating hole; a seat unit, wherein the seat unit includes a support bracket, the support bracket including a support base, the support base having a rotating shaft, the rotating shaft being rotatably passed through the rotating hole and the central axis of the rotating shaft extending in the left-right direction; and a locking member, wherein the locking member is disposed on the support base and is positioned relative to the support base in an unlocked position and a locked position. The locking member is movable and has a first locking protrusion and a second locking protrusion. When the locking member is in the unlocked position, the support base is rotatable relative to the mounting base between a first locking position and a second locking position. When the locking member is in the locked position, the locking member is used to lock the support base in the first locking position or the second locking position. The first locking protrusion is received in the first locking groove, and the second locking protrusion is received in the second locking groove. When the support base is in the first locking position, the locking member cooperates with one set of the locking grooves. When the support base is in the second locking position, the locking member cooperates with the other set of the locking grooves.

[0005] According to the present invention, the stroller has two sets of locking grooves, which allow the locking member to engage with the locking grooves at different positions when in different locking positions. This allows the angle of the seat unit to be adjusted and the seat unit to be locked at a set angle position. Furthermore, the locking member has a first locking protrusion and a second locking protrusion, which are symmetrically arranged relative to the rotation axis of the seat unit. The first locking groove and the second locking groove of each locking groove group are located on opposite sides of the radial direction of the rotating hole. When the seat unit is in the locked position, the first locking protrusion and the second locking protrusion of the locking member are respectively accommodated in the first locking groove and the second locking groove, achieving bidirectional locking in the circumferential pivot direction. This increases the locking strength of the seat unit, reduces the shaking of the seat unit, and improves the comfort and safety of the seat unit.

[0006] According to some embodiments of the present invention, the locking member is slidable relative to the support seat along the radial direction of the rotating shaft.

[0007] According to some embodiments of this utility model, the locking groove group consists of two groups. A first separating protrusion is provided between the first locking grooves of the two groups, and a second separating protrusion is provided between the second locking grooves of the two groups. The mounting base is provided with a first guide groove and a second guide groove. The first guide groove is located radially outside the first separating protrusion and extends circumferentially along the rotating hole, connecting the first locking grooves of the two groups. The second guide groove is located radially inside the second separating protrusion and extends circumferentially along the rotating hole, connecting the second locking grooves of the two groups. When the locking member is in the unlocked position, the first locking protrusion is located within the first guide groove and is slidable along the extension direction of the first guide groove, and the second locking protrusion is located within the second guide groove and is slidable along the extension direction of the second guide groove.

[0008] According to some embodiments of the present invention, the locking member is provided with an avoidance limiting groove, and the rotating shaft passes through the avoidance limiting groove. The avoidance limiting groove has a first limiting wall and a second limiting wall that are arranged opposite to each other along the movement direction of the locking member. When the locking member is in the unlocked position, the rotating shaft contacts the first limiting wall; when the locking member is in the locked position, the rotating shaft contacts the second limiting wall.

[0009] According to some embodiments of the present invention, the support base is provided with a movable cavity, the rotating shaft is disposed on the bottom wall of the movable cavity, and the locking member is movably disposed within the movable cavity; the movable cavity has a first cavity wall and a second cavity wall disposed opposite to each other along the movement direction of the locking member; wherein, when the locking member is in the unlocked position, the locking member contacts the first cavity wall; when the locking member is in the locked position, the locking member contacts the second cavity wall.

[0010] According to some embodiments of this utility model, the mounting base is provided with a limiting protrusion located on the outer periphery of the rotating hole. Two sets of locking grooves are provided, with the limiting protrusion located between the two sets of locking grooves in the circumferential direction of the rotating hole. A first abutting protrusion and a second abutting protrusion are provided in the movable cavity. The first abutting protrusion and the second abutting protrusion are located on one side of the movable cavity and spaced apart along the circumferential direction of the support base. In the circumferential direction of the support base, the limiting protrusion is located between the first abutting protrusion and the second abutting protrusion. When the support base is in the first locking position, the limiting protrusion contacts the first abutting protrusion; when the support base is in the second locking position, the limiting protrusion contacts the second abutting protrusion.

[0011] According to some embodiments of the present invention, a release assembly and an elastic reset member are included. The release assembly is disposed on the support bracket and includes a release handle and a traction rope. The release handle is movably disposed on the support bracket between a first position and a second position. One end of the traction rope is connected to the release handle, and the other end of the traction rope is connected to the locking member. The release handle is configured such that, during the movement from the first position to the second position, the traction rope pulls the locking member to the unlocked position. One end of the elastic reset member is connected to the support base, and the other end of the elastic reset member is connected to the locking member. The elastic reset member is used to drive the locking member to reset to the locked position and drive the release handle to move to the first position.

[0012] According to some embodiments of the present invention, the release assembly includes a drive slider, and the release handle is rotatably disposed on the support bracket between the first position and the second position. The rotation axis of the release handle extends in the left-right direction. The release handle includes a rotating part and a handle part connected together. The rotating part is rotatably connected to the support bracket. The rotating part is provided with a guide rib, which extends obliquely in the circumferential direction of the rotating part. The drive slider has a sliding groove that cooperates with the guide rib. The support bracket is provided with a sliding guide groove that extends in the left-right direction. The drive slider is accommodated in the sliding guide groove and is slidable in the left-right direction relative to the support bracket.

[0013] According to some embodiments of the present invention, the unlocking assembly further includes a mounting sleeve, which is clamped on the support bracket. The rotating part is accommodated in the mounting sleeve and rotatably connected to the mounting sleeve. An clearance opening is provided on the outer peripheral wall of the mounting sleeve, and the pull handle extends out of the mounting sleeve through the clearance opening.

[0014] According to some embodiments of the present invention, the locking member is provided with a mounting hole, the elastic reset member is accommodated in the mounting hole, the support base is provided with a fixing post, the fixing post passes through the mounting hole, one end of the elastic reset member is connected to the fixing post, the inner wall of the mounting hole is provided with a mounting protrusion, and the other end of the elastic reset member is connected to the mounting protrusion.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a stroller according to some embodiments of the present invention, wherein the support bracket is separate from the frame; Figure 2 yes Figure 1 A magnified view of a section at point X; Figure 3 yes Figure 1 The right view of the support bracket in the first locked position; Figure 4 yes Figure 1 The right view of the support bracket in the second locking position; Figure 5 yes Figure 3 A cross-sectional view of the support bracket; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; Figure 7 yes Figure 1 Exploded view of the central support bracket and mounting base; Figure 8 yes Figure 7 A magnified view of a section at point B in the middle; Figure 9 This is an exploded view of the support bracket and mounting base from another angle. Figure 10 yes Figure 9 A schematic diagram of the locking component and the elastic reset component; Figure 11 yes Figure 9 A schematic diagram of the mounting bracket; Figure 12 This is an exploded view of the support bracket and mounting base from another angle; Figure 13 yes Figure 12 A magnified view of a section at point C.

[0017] Figure label: 100. Stroller; 10. Frame; 11. Mounting base; 111. Rotary hole; 112. Locking groove assembly; 113. First locking groove; 114. Second locking groove; 115. First dividing protrusion; 116. Second dividing protrusion; 117. First guide groove; 118. Second guide groove; 12. Limiting protrusion; 13. Fixing base; 131. Insertion groove; 132. Locking hole; 14. Resilient locking tongue; 141. Insertion part; 142. Release button; 20. Seat unit; 21. Support bracket; 211. Sliding guide groove; 22. Support seat; 221. Rotating shaft; 23. Movable cavity; 231. First cavity wall; 232. Second cavity wall; 233. First abutting protrusion; 234. Second abutting protrusion; 24. Fixing post; 30. Locking element; 31. First locking protrusion; 32. Second locking protrusion; 33. Clearance limiting groove; 331. First limiting wall; 332. Second limiting wall; 34. Mounting hole; 341. Mounting protrusion; 40. Lock release assembly; 41. Lock release handle; 42. Mounting sleeve; 421. Clearance opening; 43. Drive slider; 431. Sliding groove; 44. Rotating part; 441. Guide rib; 45. Handle part; 50. Elastic reset component. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] The following is for reference. Figures 1-13 Description of a stroller 100 according to an embodiment of the present utility model.

[0020] refer to Figures 1-8 The stroller 100 according to an embodiment of the present utility model includes: a frame 10, a seat unit 20, and a locking member 30.

[0021] The frame 10 is provided with a mounting base 11, which has a pivot hole 111. The seat unit 20 includes a support bracket 21, which includes a support seat 22. The support seat 22 has a pivot 221, which is rotatably inserted through the pivot hole 111, and the central axis of the pivot 221 extends in the left-right direction. The seat unit 20 is rotatably mounted on the frame 10 through the cooperation of the pivot 221 and the pivot hole 111. A locking member 30 is provided on the support seat 22, which locks the seat unit 20 in the locked position after it rotates relative to the frame 10 to the desired angle.

[0022] Mounting base 11 is provided with at least two sets of locking grooves 112. Each set of locking grooves 112 is located on the outer periphery of the rotating hole 111. The at least two sets of locking grooves 112 are arranged at intervals along the circumference of the rotating hole 111. Each set of locking grooves 112 includes a first locking groove 113 and a second locking groove 114 located on opposite radial sides of the rotating hole 111. Locking member 30 is provided on support base 22 and is movable relative to support base 22 between an unlocked position and a locked position. Locking member 30 is provided with a first locking protrusion 31 and a second locking protrusion 32. When locking member 30 locks seat unit 20 in the locked position, locking member 30 cooperates with one set of locking grooves 112. The first locking protrusion 31 of locking member 30 is received in the first locking groove 113, and the second locking protrusion 32 of locking member 30 is received in the second locking groove 114. When the support base 22 is in the first locked position, the locking member 30 engages with one of the sets of locking grooves 112, with the first locking protrusion 31 of the locking member 30 being accommodated in the first locking groove 113 of one set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 being accommodated in the second locking groove 114 of one set of locking grooves 112; when the support base 22 is in the second locked position, the locking member 30 engages with another set of locking grooves 112, with the first locking protrusion 31 of the locking member 30 being accommodated in the first locking groove 113 of the other set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 being accommodated in the second locking groove 114 of the other set of locking grooves 112.

[0023] When the locking member 30 is in the unlocked position, the support base 22 can rotate relative to the mounting base 11 between a first locked position and a second locked position, thereby adjusting the angle position of the seat unit 20. When the locking member 30 is in the locked position, the locking member 30 is used to lock the support base 22 in the first locked position or the second locked position, thereby locking the seat unit 20 in the first locked position or the second locked position.

[0024] For example, when the support base 22 is in the first locked position, the locking member 30 is in the locked position. The first locking protrusion 31 of the locking member 30 is accommodated in the first locking groove 113 of one set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 is accommodated in the second locking groove 114 of one set of locking grooves 112. By cooperating with one set of locking grooves 112 on the mounting base 11, the seat unit 20 can be locked in the first locked position.

[0025] When the angle of the seat unit 20 needs to be adjusted, and the seat unit 20 needs to be adjusted from the first locked position to the second locked position, the locking member 30 is moved to the unlocked position. At this time, the support seat 22 can rotate relative to the mounting seat 11. When the support seat 22 rotates relative to the mounting seat 11, it drives the locking member 30 to rotate relative to the mounting seat 11. The support seat 22 rotates relative to the mounting seat 11, so that the support seat 22 moves relative to the mounting seat 11 from the first locked position to the second locked position. The locking member 30 is moved to the locked position, and the support seat 22 is locked relative to the mounting seat 11. The first locking protrusion 31 of the locking member 30 is accommodated in the first locking groove 113 of another set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 is accommodated in the second locking groove 114 of another set of locking grooves 112, so that the seat unit 20 can be locked in the second locked position.

[0026] When it is necessary to adjust the seat unit 20 from the second locked position to the first locked position, the locking member 30 is moved to the unlocked position. At this time, the support seat 22 can rotate relative to the mounting seat 11. Rotating the support seat 22 relative to the mounting seat 11 causes the locking member 30 to rotate relative to the mounting seat 11, so that the support seat 22 moves relative to the mounting seat 11 from the second locked position to the first locked position. The locking member 30 is then moved to the locked position, and the support seat 22 is locked relative to the mounting seat 11. The first locking protrusion 31 of the locking member 30 is accommodated in the first locking groove 113 of one set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 is accommodated in the second locking groove 114 of one set of locking grooves 112, thereby locking the seat unit 20 in the first locked position.

[0027] The angle of the seat unit 20 can be adjusted by rotating the support base 22 relative to the mounting base 11 and locking it with the locking member 30. For example, when the support base 22 is in the first locked position, the seat unit 20 can be tilted relative to the horizontal plane, which is the seat mode, allowing the baby to sit in the seat unit 20; for example, when the support base 22 is in the second locked position, the seat unit 20 can be parallel to the horizontal plane, which is the sleeping box mode, allowing the baby to lie down and sleep in the seat unit 20.

[0028] According to the embodiment of the present invention, the stroller 100 is provided with two sets of locking grooves 112, so that the locking member 30 cooperates with the locking grooves 112 located in different positions when in different locking positions. The angle of the seat unit 20 can be adjusted and the seat unit 20 can be locked at a set angle position. Furthermore, the locking member 30 is provided with a first locking protrusion 31 and a second locking protrusion 32, and the first locking protrusion 31 and the second locking protrusion 32 are symmetrically arranged relative to the rotation axis 221 of the seat unit 20. The first locking groove 113 and the second locking groove 114 of each set of locking grooves 112 are located on opposite sides of the radial direction of the rotating hole 111. When the seat unit 20 is in the locked position, the first locking protrusion 31 and the second locking protrusion 32 of the locking member 30 are respectively accommodated in the first locking groove 113 and the second locking groove 114, realizing bidirectional locking in the circumferential pivot direction. This can increase the locking strength of the seat unit 20, reduce the shaking of the seat unit 20, and improve the comfort and safety of the seat unit 20.

[0029] refer to Figures 1-2 In some embodiments, the mounting base 11 is detachably connected to the frame 10, allowing the seat unit 20 to be removed from the frame 10, for example, by snapping the mounting base 11 onto the frame 10. This facilitates the storage of the stroller 100.

[0030] refer to Figures 1-3 In some embodiments, the frame 10 has a mounting base 13, which has a insertion groove 131 and a locking hole 132. The locking hole 132 is located on the upper side of the insertion groove 131. The mounting base 11 has a resilient locking tongue 14 and an insertion part 141. The insertion part 141 is inserted into the insertion groove 131, and the resilient locking tongue 14 is accommodated in the locking hole 132. Thus, the mounting base 11 can be connected and fixed to the frame 10, and the seat unit 20 can be connected and fixed to the frame 10.

[0031] The mounting base 11 may be provided with a release button 142, which is convexly connected to the elastic locking tongue 14 to drive the elastic locking tongue 14 to move, thereby causing the elastic locking tongue 14 to separate or engage with the locking hole 132. The mounting base 11 is also provided with a locking spring, which is used to drive the elastic locking tongue 14 to move to engage with the locking hole 132.

[0032] When it is necessary to remove the seat unit 20, the release button 142 can be pressed to separate the elastic locking tongue 14 from the locking hole 132, thereby removing the seat unit 20. When installing the seat unit 20 onto the frame 10, the release button 142 can be pressed. After the seat unit 20 is in place, the release button 142 can be released, and the elastic locking tongue 14 can be inserted into the locking hole 132 under the action of the locking spring, thereby fixing the seat unit 20 onto the frame 10.

[0033] refer to Figures 5-6 According to some embodiments of this utility model, the locking member 30 is slidable relative to the support base 22 along the radial direction of the rotating shaft 221. By allowing the locking member 30 to slide radially relative to the support base 22 along the rotating shaft 221, the movement trajectory of the locking member 30 is simplified, facilitating the switching of the support base 22 between the first locking position and the second locking position.

[0034] refer to Figures 7-8 According to some embodiments of the present invention, the locking groove group 112 consists of two groups. A first separating protrusion 115 is provided between the first locking grooves 113 of the two groups of locking groove groups 112, and a second separating protrusion 116 is provided between the second locking grooves 114 of the two groups of locking groove groups 112. The mounting base 11 is provided with a first guide groove 117 and a second guide groove 118. The first guide groove 117 is located on the radially outer side of the first separating protrusion 115 and extends circumferentially along the rotating hole 111. The first guide groove 117 connects the first locking grooves 113 of the two groups of locking groove groups 112. The second guide groove 118 is located on the radially inner side of the second separating protrusion 116 and extends circumferentially along the rotating hole 111. The second guide groove 118 connects the second locking grooves 114 of the two groups of locking groove groups 112.

[0035] When the locking member 30 is in the unlocked position, the first locking protrusion 31 is located in the first guide groove 117 and can slide along the extension direction of the first guide groove 117, and the second locking protrusion 32 is located in the second guide groove 118 and can slide along the extension direction of the second guide groove 118.

[0036] For example, when the support base 22 is in the first locked position, the locking member 30 is in the locked position. The first locking protrusion 31 of the locking member 30 is accommodated in the first locking groove 113 of one set of locking grooves 112, and the second locking protrusion 32 of the locking member 30 is accommodated in the second locking groove 114 of one set of locking grooves 112. By cooperating with one set of locking grooves 112 on the mounting base 11, the seat unit 20 can be locked in the first locked position.

[0037] When it is necessary to adjust the angle of the seat unit 20, and to adjust the seat unit 20 from the first locked position to the second locked position, the locking member 30 is moved to the unlocked position. For example, the locking member 30 is slid radially along the rotating shaft 221 to the unlocked position. At this time, the support seat 22 can rotate relative to the mounting seat 11. When the support seat 22 is rotated relative to the mounting seat 11, the locking member 30 is rotated relative to the mounting seat 11. The first locking protrusion 31 disengages from the first locking groove 113 of one set of locking grooves 112 and slides along the first guide groove 117. The second locking protrusion 32 disengages from the second locking groove 114 of one set of locking grooves 112 and slides along the second guide groove 118. When the support seat 22 is moved from the first locking position to the second locking position, and the locking member 30 is reset to the locking position when the support seat 22 is moved to the second locking position, for example, the locking member 30 slides radially along the rotating shaft 221 to the locking position, that is, the first locking protrusion 31 slides into the first locking groove 113 of another set of locking grooves 112, and the second locking protrusion 32 slides into the second locking groove 114 of another set of locking grooves 112. The support bracket 21 is locked in the second locking position by the locking member 30, thereby locking the seat unit 20 in the second locking position.

[0038] When it is necessary to adjust the seat unit 20 from the second locked position to the first locked position, the locking member 30 is moved to the unlocked position, for example, the locking member 30 is slid radially along the rotating shaft 221 to the unlocked position. At this time, the support seat 22 can rotate relative to the mounting seat 11. The support seat 22 is rotated relative to the mounting seat 11. When the support seat 22 rotates relative to the mounting seat 11, the locking member 30 is rotated relative to the mounting seat 11. The first locking protrusion 31 disengages from the first locking groove 113 of another set of locking grooves 112 and slides along the first guide groove 117. The second locking protrusion 32 disengages from the second locking groove 114 of another set of locking grooves 112 and slides along the second guide groove 118. When the support seat 22 is moved from the second locking position to the first locking position, and the locking member 30 is reset to the locking position when the support seat 22 is moved to the first locking position, for example, the locking member 30 slides radially along the rotating shaft 221 to the locking position, that is, the first locking protrusion 31 slides into the first locking groove 113 of one set of locking grooves 112, and the second locking protrusion 32 slides into the second locking groove 114 of one set of locking grooves 112. The support bracket 21 is locked in the first locking position by the locking member 30, thereby locking the seat unit 20 in the first locking position.

[0039] By providing a first separating protrusion 115 between the first locking slots 113 of the two locking slot groups 112, the first locking slots 113 of the two locking slot groups 112 can be separated; by providing a second separating protrusion 116 between the second locking slots 114 of the two locking slot groups 112, the second locking slots 114 of the two locking slot groups 112 can be separated. Furthermore, a first guide groove 117 is formed between the first locking slots 113 of the two locking slot groups 112 to facilitate the sliding switching of the first locking protrusion 31 between the first locking slots 113 of the two locking slot groups 112; a second guide groove 118 is formed between the second locking slots 114 of the two locking slot groups 112 to facilitate the sliding switching of the second locking protrusion 32 between the second locking slots 114 of the two locking slot groups 112. Through the above configuration, it is convenient to switch between different locking positions of the support base 22, thereby facilitating the switching of the seat unit 20 between the first locking position and the second locking position, and the adjustment method is simple.

[0040] refer to Figure 6 According to some embodiments of this utility model, the locking member 30 is provided with an avoidance limiting groove 33, and the rotating shaft 221 passes through the avoidance limiting groove 33. The avoidance limiting groove 33 has a first limiting wall 331 and a second limiting wall 332 arranged opposite to each other along the movement direction of the locking member 30. Both the first limiting wall 331 and the second limiting wall 332 are arc-shaped. By providing an avoidance limiting groove 33 on the locking member 30 and allowing the rotating shaft 221 to pass through the avoidance limiting groove 33, it can, on the one hand, avoid the rotating shaft 221, and on the other hand, when the support base 22 rotates, the rotating shaft 221 can drive the locking member 30 to rotate synchronously with the support base 22. In addition, it can also limit the sliding stroke of the locking member 30, restricting the movement of the locking member 30 between the unlocked position and the locked position.

[0041] For example, when the locking member 30 is in the unlocked position, the rotating shaft 221 contacts the first limiting wall 331; when the locking member 30 is in the locked position, the rotating shaft 221 contacts the second limiting wall 332. By making the first limiting wall 331 contact the rotating shaft 221 to limit the locking member 30, the locking member 30 can be kept in the unlocked state; by making the second limiting wall 332 contact the rotating shaft 221 to limit the locking member 30, the locking member 30 can be kept in the locked state.

[0042] By providing an avoidance limiting groove 33 to avoid the rotating shaft 221, the rotating shaft 221 can pass through the locking member 30 to connect with other components. It can also limit the rotating shaft 221 to the first limiting wall 331 and the second limiting wall 332 of the avoidance limiting groove 33, so that the locking member 30 can only move between the locked position and the unlocked position. The switching between the locked position and the unlocked position is simple and facilitates the operation of the seat unit 20 to switch between different angles.

[0043] refer to Figure 6 According to some embodiments of this utility model, the support base 22 is provided with a movable cavity 23, the rotating shaft 221 is provided on the bottom wall of the movable cavity 23, and the locking member 30 is movably disposed in the movable cavity 23. The movable cavity 23 has a first cavity wall 231 and a second cavity wall 232 disposed opposite to each other along the movement direction of the locking member 30. The first cavity wall 231 and the second cavity wall 232 play a limiting role in locking the locking member 30, so that the movement range of the locking member 30 does not exceed the movable cavity 23, and can limit the movement stroke of the locking member 30, restricting the locking member 30 to move between the unlocked position and the locked position.

[0044] Specifically, when the locking member 30 is in the unlocked position, it contacts the first cavity wall 231; when the locking member 30 is in the locked position, it contacts the second cavity wall 232. By having the first cavity wall 231 contact the rotating shaft 221 to limit the locking member 30, it can be kept in the unlocked state; by having the second cavity wall 232 contact the rotating shaft 221 to limit the locking member 30, it can be kept in the locked state. The movable cavity 23 allows the locking member 30 to move only between the locked and unlocked positions, simplifying the switching between them and facilitating the operation of the seat unit 20 at different angles.

[0045] refer to Figures 6-8 According to some embodiments of the present invention, the mounting base 11 is provided with a limiting protrusion 12, which is located on the outer periphery of the rotating hole 111. The locking groove group 112 consists of two groups. In the circumferential direction of the rotating hole 111, the limiting protrusion 12 is located between the two groups of locking groove groups 112. The movable cavity 23 is provided with a first abutting protrusion 233 and a second abutting protrusion 234. The first abutting protrusion 233 and the second abutting protrusion 234 are located on one side of the movable cavity 23 and are spaced apart along the circumferential direction of the support base 22. In the circumferential direction of the support base 22, the limiting protrusion 12 is located between the first abutting protrusion 233 and the second abutting protrusion 234. When the support base 22 is in the first locking position, the limiting protrusion 12 contacts the first abutting protrusion 233. When the support base 22 is in the second locking position, the limiting protrusion 12 contacts the second abutting protrusion 234.

[0046] The first abutting protrusion 233 and the second abutting protrusion 234 can indirectly limit the rotation angle of the support base 22 by limiting the limiting protrusion 12. For example, when it is necessary to move the support base 22 from the first locked position to the second locked position, the locking member 30 moves from the locked position to the unlocked position, and the support base 22 rotates relative to the mounting base 11 from the first locked position to the second locked position. At this time, the limiting protrusion 12 contacts the second abutting protrusion 234, so that when the support bracket 21 moves to the second position, the support base 22 cannot continue to rotate relative to the mounting base 11. Then the locking member 30 moves from the unlocked position to the locked position, thereby fixing the support base 22 in the second locked position.

[0047] By limiting the limiting protrusion 12 with the first abutting protrusion 233 and the second abutting protrusion 234, the support base 22 and the locking member 30 can be limited. This can reduce the impact of the mounting base 11 on the first locking protrusion 31 and the second locking protrusion 32 during the rotation of the support base 22, reduce the wear of the first locking protrusion 31 and the second locking protrusion 32, thereby extending the life of the locking member 30 and ensuring the locking strength of the locking member 30.

[0048] refer to Figures 10-13 According to some embodiments of the present invention, the stroller 100 includes a release assembly 40 and an elastic reset member 50. The release assembly 40 is disposed on the support bracket 21 and includes a release handle 41 and a traction rope. The release handle 41 is movably disposed on the support bracket 21 between a first position and a second position. One end of the traction rope is connected to the release handle 41, and the other end of the traction rope is connected to the locking member 30. The release handle 41 is configured such that, during the process of moving from the first position to the second position, the traction rope pulls the locking member 30 to the unlocked position.

[0049] When the release handle 41 is in the first position, the locking member 30 is in the locked position, at which time the first locking protrusion 31 is located in the first locking groove 113 and the second locking protrusion 32 is located in the second locking groove 114; when the release handle 41 is in the second position, the locking member 30 is in the unlocked position, at which time the first locking protrusion 31 is located in the first guide groove 117 and can slide along the extension direction of the first guide groove 117, and the second locking protrusion 32 is located in the second guide groove 118 and can slide along the extension direction of the second guide groove 118.

[0050] One end of the elastic reset member 50 is connected to the support base 22, and the other end of the elastic reset member 50 is connected to the locking member 30. The elastic reset member 50 is used to drive the locking member 30 to reset to the locked position and drive the release handle 41 to move to the first position.

[0051] For example, the elastic reset member 50 can be a spring or other elastic component. One end of the elastic reset member 50 is connected to the support base 22, which can fix the elastic reset member 50, and the other end of the elastic reset member 50 is connected to the locking member 30.

[0052] For example, when the support bracket 21 needs to move from the first locked position to the second locked position, a force is applied to the release handle 41, causing it to move from the first position to the second position. When the release handle 41 moves to the second position, the locking member 30 is in the unlocked position, and the support bracket 21 can rotate relative to the mounting base 11. After adjusting the support bracket 21 to the second locked position, the force applied to the release handle 41 is released. The elastic reset member 50, through its own elasticity, drives the locking member 30 to reset to the locked position, thereby causing the locking member 30 to pull the release handle 41 back to the first position with the traction rope. Locking the locking member 30 can be achieved without manually applying additional force. Unlocking and locking the support bracket 21 through the release assembly 40 and the elastic reset member 50 is simple and allows for quick changes in the different locking positions of the support bracket 21.

[0053] refer to Figures 10-13 According to some embodiments of the present invention, the release assembly 40 includes a drive slider 43, and a release handle 41 rotatably mounted on a support bracket 21 between a first position and a second position. The rotation axis of the release handle 41 extends in the left-right direction. The release handle 41 includes a connected rotating part 44 and a handle part 45. The rotating part 44 is rotatably connected to the support bracket 21. The rotating part 44 is provided with a guide rib 441, which extends obliquely in the circumferential direction of the rotating part 44. The drive slider 43 has a sliding groove 431 that cooperates with the guide rib 441. The guide rib 441 serves to guide the drive slider 43. The support bracket 21 is provided with a sliding guide groove 211 extending in the left-right direction. The drive slider 43 is accommodated in the sliding guide groove 211 and can slide relative to the support bracket 21 in the left-right direction.

[0054] For example, there can be two drive sliders 43, which can be arranged in the left and right direction. The two drive sliders 43 can be connected to the locking members 30 on both sides of the support bracket 21 respectively by traction ropes.

[0055] For example, when the support bracket 21 needs to move from the first locked position to the second locked position, a force is applied to the release handle 41. For example, a force can be applied to the handle portion 45 to make the release handle 41 rotate from the first position to the second position. During the process of the release handle 41 rotating from the first position to the second position, the drive slider 43 moves in the left and right direction under the combined action of the guide rib 441 and the sliding guide groove 211. For example, the two drive sliders 43 move towards each other. The drive slider 43 pulls the locking member 30 towards the unlock position through the traction rope.

[0056] When the release handle 41 moves to the second position, the locking member 30 is in the unlocked position, and the support bracket 21 can rotate relative to the mounting base 11. After the support bracket 21 is adjusted to the second locking position, the force applied to the release handle 41 is released. The elastic reset member 50 drives the locking member 30 to reset to the locked position through its own elastic force, so that the locking member 30 drives the drive slider 43 to move through the traction rope. For example, the two drive sliders 43 move in a direction away from each other, and the drive sliders 43 drive the release handle 41 to rotate to the first position.

[0057] By rotating the release handle 41, and driving the slider 43 to drive the traction rope to pull the locking member 30 to slide, the operation is simple and saves effort.

[0058] refer to Figures 12-13 According to some embodiments of this utility model, the release assembly 40 further includes a mounting sleeve 42, which is clamped onto the support bracket 21. The rotating part 44 is accommodated within the mounting sleeve 42 and is rotatably connected to the mounting sleeve 42. The outer peripheral wall of the mounting sleeve 42 is provided with an avoidance opening 421, which can extend along the pivot direction of the rotating part 44. The drive slider 43 is sleeved therein, which guides and limits the drive slider 43. The pull handle 45 extends out of the mounting sleeve 42 through the avoidance opening 421. By providing the mounting sleeve 42, the rotating part 44 of the release assembly 40 can be protected, and the release handle 41 can be easily installed onto the support bracket 21. By extending the handle 45 out of the mounting sleeve 42 through the avoidance opening 421, the user can easily apply force to the handle 45 and rotate it.

[0059] refer to Figures 12-13 According to some embodiments of this utility model, a cable routing channel is formed within the support bracket 21, and the traction rope runs along the cable routing channel. By forming a cable routing channel within the support bracket 21, the space occupied by the traction rope can be saved, and the risk of the traction rope cutting the user when pulled can also be reduced.

[0060] refer to Figure 6According to some embodiments of this utility model, the locking member 30 is provided with a mounting hole 34, the elastic reset member 50 is accommodated in the mounting hole 34, the support base 22 is provided with a fixing post 24, the fixing post 24 passes through the mounting hole 34, one end of the elastic reset member 50 is connected to the fixing post 24, the inner wall of the mounting hole 34 is provided with a mounting protrusion 341, and the other end of the elastic reset member 50 is connected to the mounting protrusion 341. By providing a mounting hole 34 for accommodating the elastic reset member 50 on the locking member 30, the spring can be easily installed, and the fixing post 24 and the mounting protrusion 341 facilitate the connection and fixation of both ends of the elastic reset member 50.

[0061] The following is for reference. Figures 1-13 The present invention describes a stroller 100 in some embodiments.

[0062] In this embodiment, the stroller 100 includes: a frame 10, a seat unit 20, a locking member 30, a release assembly 40, and a resilient reset member 50.

[0063] The frame 10 is provided with a mounting base 11, which has a rotating hole 111 and two sets of locking grooves 112. The two sets of locking grooves 112 are located on the outer periphery of the rotating hole 111 and are arranged at intervals along the circumference of the rotating hole 111. Each set of locking grooves 112 includes a first locking groove 113 and a second locking groove 114 located on opposite radial sides of the rotating hole 111. The frame 10 has a fixing base 13, which has a insertion groove 131 and a locking hole 132. The locking hole 132 is located on the upper side of the insertion groove 131. The mounting base 11 has a resilient locking tongue 14 and an insertion part 141. The insertion part 141 is inserted into the insertion groove 131, and the resilient locking tongue 14 is accommodated in the locking hole 132. The mounting base 11 has a release button 142, which is kinetically connected to the resilient locking tongue 14.

[0064] The seat unit 20 includes a support bracket 21, which includes a support base 22. The support base 22 is provided with a rotating shaft 221 and a movable cavity 23. The rotating shaft 221 is rotatably inserted through a rotating hole 111 and the central axis of the rotating shaft 221 extends in the left-right direction. The rotating shaft 221 is located on the bottom wall of the movable cavity 23. The locking member 30 is movably disposed in the movable cavity 23. The movable cavity 23 has a first cavity wall 231 and a second cavity wall 232 that are disposed opposite to each other along the movement direction of the locking member 30.

[0065] The locking member 30 is disposed on the support base 22 and is movable relative to the support base 22 between the unlocked position and the locked position. The locking member 30 is also slidable relative to the support base 22 along the radial direction of the rotating shaft 221. The locking member 30 is provided with a first locking protrusion 31 and a second locking protrusion 32. The locking member 30 is also provided with an avoidance limiting groove 33. The rotating shaft 221 passes through the avoidance limiting groove 33. The avoidance limiting groove 33 has a first limiting wall 331 and a second limiting wall 332 that are arranged opposite to each other along the movement direction of the locking member 30.

[0066] A first separating protrusion 115 is provided between the first locking grooves 113 of the two sets of locking groove groups 112, and a second separating protrusion 116 is provided between the second locking grooves 114 of the two sets of locking groove groups 112. The mounting base 11 is provided with a first guide groove 117 and a second guide groove 118. The first guide groove 117 is located on the radially outer side of the first separating protrusion 115 and extends circumferentially along the rotating hole 111. The first guide groove 117 connects the first locking grooves 113 of the two sets of locking groove groups 112. The second guide groove 118 is located on the radially inner side of the second separating protrusion 116 and extends circumferentially along the rotating hole 111. The second guide groove 118 connects the second locking grooves 114 of the two sets of locking groove groups 112.

[0067] The mounting base 11 is provided with a limiting protrusion 12, which is located on the outer periphery of the rotating hole 111. In the circumferential direction of the rotating hole 111, the limiting protrusion 12 is located between two sets of locking grooves 112. The movable cavity 23 is provided with a first abutting protrusion 233 and a second abutting protrusion 234. The first abutting protrusion 233 and the second abutting protrusion 234 are located on one side of the movable cavity 23 and are spaced apart along the circumferential direction of the support base 22. In the circumferential direction of the support base 22, the limiting protrusion 12 is located between the first abutting protrusion 233 and the second abutting protrusion 234.

[0068] The release assembly 40 is mounted on the support bracket 21 and includes a release handle 41 and a traction rope. The release handle 41 is movably mounted on the support bracket 21 between a first position and a second position. One end of the traction rope is connected to the release handle 41, and the other end is connected to the locking member 30. The release assembly 40 includes a drive slider 43 and a mounting sleeve 42. The release handle 41 is rotatably mounted on the support bracket 21 between the first position and the second position. The rotation axis of the release handle 41 extends in the left-right direction. The release handle 41 includes a connected rotating part 44 and a handle part 45. The rotating part 44 is rotatably connected to the support bracket 21. The rotating part 44 is provided with a guide rib 441, which extends obliquely in the circumferential direction of the rotating part 44. The drive slider 43 has a guide rib 441 that extends obliquely in the circumferential direction of the rotating part 44. The rib 441 has a sliding groove 431 that fits into it. The support bracket 21 has a sliding guide groove 211 extending in the left and right direction. The drive slider 43 is accommodated in the sliding guide groove 211 and can slide in the left and right direction relative to the support bracket 21. The mounting sleeve 42 is clamped onto the support bracket 21. The rotating part 44 is accommodated in the mounting sleeve 42 and is rotatably connected to the mounting sleeve 42. The outer peripheral wall of the mounting sleeve 42 has an avoidance opening 421. The pull handle part 45 extends out of the mounting sleeve 42 through the avoidance opening 421. A cable routing channel is formed inside the support bracket 21, and the traction rope runs along the cable routing channel.

[0069] One end of the elastic reset member 50 is connected to the support base 22, and the other end of the elastic reset member 50 is connected to the locking member 30. The elastic reset member 50 is used to drive the locking member 30 to reset to the locked position and drive the release handle 41 to move to the first position. The locking member 30 is provided with a mounting hole 34, and the elastic reset member 50 is accommodated in the mounting hole 34. The support base 22 is provided with a fixing post 24, which passes through the mounting hole 34. One end of the elastic reset member 50 is connected to the fixing post 24. The inner wall of the mounting hole 34 is provided with a mounting protrusion 341, and the other end of the elastic reset member 50 is connected to the mounting protrusion 341.

[0070] When it is necessary for the support base 22 to move from the first locked position to the second locked position, the following operation can be performed: When the support base 22 is in the first locked position, the locking member 30 is in the locked position. The first locking protrusion 31 is accommodated in the first locking groove 113, and the second locking protrusion 32 is accommodated in the second locking groove 114. When the user pulls the handle portion 45 of the release handle 41 towards the drive slider 43, the user moves from the first position to the second position, causing the rotating portion 44 of the release handle 41 to move in the same direction. The drive slider 43 moves relative to the support bracket 21 along the guide rib 441 of the rotating portion 44 in the left-right direction towards each other, thereby pulling... The traction rope pulls the locking member 30 from the locked position to the unlocked position. At this time, the support base 22 can rotate relative to the mounting base 11. When the support base 22 is rotated relative to the mounting base 11, the locking member 30 is rotated relative to the mounting base 11. The first locking protrusion 31 disengages from the first locking groove 113 of one set of locking grooves 112 and slides along the first guide groove 117. The second locking protrusion 32 disengages from the second locking groove 114 of one set of locking grooves 112 and slides along the second guide groove 118. When the support base 22 is moved from the first locking position to the second locking position, and the locking member 30 is reset to the locked position, the locking member 30 slides radially along the rotating shaft 221 to the locked position. That is, the first locking protrusion 31 slides into the first locking groove 113 of another set of locking grooves 112, and the second locking protrusion 32 slides into the second locking groove 114 of another set of locking grooves 112. The support bracket 21 is locked in the second locking position by the locking member 30, thereby locking the seat unit 20 in the second locking position. When the locking member 30 moves to the locked position, it also drives the traction rope to apply a force to the drive slider 43 in the left-right direction, causing the drive slider 43 to move away from each other along the guide rib 441, thereby driving the release handle 41 to move from the second position back to the first position.

[0071] When it is necessary for the support base 22 to move from the second locked position to the first locked position, the following operation can be performed: When the support base 22 is in the second locked position, the locking member 30 is in the locked position. The first locking protrusion 31 is accommodated in the first locking groove 113, and the second locking protrusion 32 is accommodated in the second locking groove 114. When the user pulls the handle portion 45 of the release handle 41 towards the drive slider 43, the user moves from the second position to the first position, causing the rotating portion 44 of the release handle 41 to move in the same direction. The drive slider 43 moves relative to the support bracket 21 along the guide rib 441 of the rotating portion 44 in the left-right direction towards each other, thereby pulling... The traction rope pulls the locking member 30 from the locked position to the unlocked position. At this time, the support base 22 can rotate relative to the mounting base 11. When the support base 22 is rotated relative to the mounting base 11, the locking member 30 is rotated relative to the mounting base 11. The first locking protrusion 31 disengages from the first locking groove 113 of one set of locking grooves 112 and slides along the first guide groove 117. The second locking protrusion 32 disengages from the second locking groove 114 of one set of locking grooves 112 and slides along the second guide groove 118. When the support base 22 is moved from the first locking position to the second locking position, and the locking member 30 is reset to the locked position when the support base 22 is moved to the first locking position, the locking member 30 slides radially along the rotating shaft 221 to the locked position. That is, the first locking protrusion 31 slides into the first locking groove 113 of another set of locking grooves 112, and the second locking protrusion 32 slides into the second locking groove 114 of another set of locking grooves 112. The support bracket 21 is locked in the first locking position by the locking member 30, thereby locking the seat unit 20 in the first locking position. When the locking member 30 moves to the locked position, it also drives the traction rope to apply a force to the drive slider 43 in the left-right direction, causing the drive slider 43 to move away from each other along the guide rib 441, thereby driving the release handle 41 to move from the second position back to the first position.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0073] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0074] In the description of this utility model, "multiple" means two or more.

[0075] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0076] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A stroller, characterized in that, include: A frame, wherein a mounting base is provided on the frame, the mounting base is provided with a rotating hole and at least two sets of locking grooves, each set of locking grooves is located on the outer periphery of the rotating hole, and at least two sets of locking grooves are arranged at intervals along the circumference of the rotating hole, each set of locking grooves includes a first locking groove and a second locking groove located on opposite radial sides of the rotating hole. A seat unit, the seat unit including a support bracket, the support bracket including a support base, the support base having a rotating shaft, the rotating shaft being rotatably inserted through the rotating hole and the central axis of the rotating shaft extending in the left-right direction; A locking member is disposed on the support base and movable relative to the support base between an unlocked position and a locked position. The locking member is provided with a first locking protrusion and a second locking protrusion. Wherein, when the locking member is in the unlocked position, the support base is rotatable relative to the mounting base between a first locking position and a second locking position; When the locking member is in the locked position, the locking member is used to lock the support in the first locking position or the second locking position. The first locking protrusion is received in the first locking groove, and the second locking protrusion is received in the second locking groove. When the support is in the first locking position, the locking member cooperates with one of the sets of locking grooves. When the support is in the second locking position, the locking member cooperates with the other set of locking grooves.

2. The stroller according to claim 1, characterized in that, The locking element is slidable relative to the support base along the radial direction of the pivot.

3. The stroller according to claim 2, characterized in that, The locking slot group consists of two groups. A first separating protrusion is provided between the first locking slots of the two groups of locking slot groups, and a second separating protrusion is provided between the second locking slots of the two groups of locking slot groups. The mounting base is provided with a first guide slot and a second guide slot. The first guide slot is located on the radially outer side of the first separating protrusion and extends circumferentially along the rotating hole. The first guide slot connects the first locking slots of the two groups of locking slot groups. The second guide slot is located on the radially inner side of the second separating protrusion and extends circumferentially along the rotating hole. The second guide slot connects the second locking slots of the two groups of locking slot groups. When the locking member is in the unlocked position, the first locking protrusion is located in the first guide groove and is slidable along the extension direction of the first guide groove, and the second locking protrusion is located in the second guide groove and is slidable along the extension direction of the second guide groove.

4. The stroller according to claim 1, characterized in that, The locking member is provided with an avoidance and limiting groove, and the rotating shaft passes through the avoidance and limiting groove. The avoidance and limiting groove has a first limiting wall and a second limiting wall that are arranged opposite to each other along the movement direction of the locking member. Specifically, when the locking member is in the unlocked position, the rotating shaft is in contact with the first limiting wall; when the locking member is in the locked position, the rotating shaft is in contact with the second limiting wall.

5. The stroller according to claim 1, characterized in that, The support base is provided with a movable cavity, the rotating shaft is disposed on the bottom wall of the movable cavity, and the locking member is movably disposed in the movable cavity; the movable cavity has a first cavity wall and a second cavity wall disposed opposite to each other along the movement direction of the locking member; When the locking member is in the unlocked position, the locking member is in contact with the first cavity wall; when the locking member is in the locked position, the locking member is in contact with the second cavity wall.

6. The stroller according to claim 5, characterized in that, The mounting base is provided with a limiting protrusion located on the outer periphery of the rotating hole. There are two sets of locking grooves. In the circumferential direction of the rotating hole, the limiting protrusion is located between the two sets of locking grooves. The movable cavity is provided with a first abutting protrusion and a second abutting protrusion. The first abutting protrusion and the second abutting protrusion are located on one side of the movable cavity and are spaced apart along the circumferential direction of the support base. In the circumferential direction of the support base, the limiting protrusion is located between the first abutting protrusion and the second abutting protrusion. When the support is in the first locked position, the limiting protrusion contacts the first abutting protrusion; when the support is in the second locked position, the limiting protrusion contacts the second abutting protrusion.

7. The stroller according to any one of claims 1-6, characterized in that, The device includes a release assembly and an elastic reset member. The release assembly is disposed on the support bracket and includes a release handle and a traction rope. The release handle is movably disposed on the support bracket between a first position and a second position. One end of the traction rope is connected to the release handle, and the other end of the traction rope is connected to the locking member. The release handle is configured such that, during the movement from the first position to the second position, the traction rope pulls the locking member to the unlocked position. One end of the elastic reset member is connected to the support base, and the other end of the elastic reset member is connected to the locking member. The elastic reset member is used to drive the locking member to reset to the locked position and drive the release handle to move to the first position.

8. The stroller according to claim 7, characterized in that, The release assembly includes a drive slider, and the release handle is rotatably mounted on the support bracket between the first position and the second position. The rotation axis of the release handle extends in the left-right direction. The release handle includes a connected rotating part and a handle part. The rotating part is rotatably connected to the support bracket. The rotating part is provided with a guide rib, which extends obliquely in the circumferential direction of the rotating part. The drive slider has a sliding groove that cooperates with the guide rib. The support bracket is provided with a sliding guide groove that extends in the left-right direction. The drive slider is accommodated in the sliding guide groove and is slidable relative to the support bracket in the left-right direction.

9. The stroller according to claim 8, characterized in that, The release assembly also includes a mounting sleeve, which is clamped on the support bracket. The rotating part is accommodated in the mounting sleeve and rotatably connected to the mounting sleeve. The outer peripheral wall of the mounting sleeve is provided with an clearance opening, and the pull handle extends to the outside of the mounting sleeve through the clearance opening.

10. The stroller according to claim 7, characterized in that, The locking member has a mounting hole, the elastic reset member is accommodated in the mounting hole, the support base has a fixing post, the fixing post passes through the mounting hole, one end of the elastic reset member is connected to the fixing post, the inner wall of the mounting hole has a mounting protrusion, and the other end of the elastic reset member is connected to the mounting protrusion.

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