Folding mechanism and stroller

Abstract

The folding mechanism comprises a mounting seat, a pivot joint seat and a locking mechanism, the pivot joint seat and the mounting seat are arranged in the first direction and rotationally connected in the first direction, a blocking part is arranged on the pivot joint seat, and the locking mechanism is arranged on the pivot joint seat and rotationally connected with the mounting seat in the first direction. The first end of the blocking part extends along the circumferential direction of the pivoting seat and is close to the second end of the blocking part; the locking mechanism comprises a first locking piece, the first locking piece comprises an abutting part, the abutting part can slide along the blocking part, and the first locking piece can move in the first direction relative to the mounting base and the pivoting base so that the mounting base and the pivoting base can be locked and unlocked; when the first locking piece is located at the locking position, the abutting portion is located between the first end and the second end of the blocking portion, and when the first locking piece is located at the unlocking position, the abutting portion slides to abut against the first end or the second end of the blocking portion. The utility model aims to reduce the probability that the inclination angle of the backrest assembly is too small or the backrest assembly is loosened when the frame is folded.

Description

Technical Field

[0001] The present application relates to the technical field of children's products, and in particular to a folding mechanism and a child stroller. Background Art

[0002] A child stroller, often referred to as a baby carriage or a child vehicle, is a portable vehicle used to carry and transport infants or young children. There are various designs of child strollers, among which a foldable child stroller can be folded into a smaller volume by its own folding joints when not in use, making it easier to store and carry.

[0003] Currently, when the frame of a foldable stroller is folded, the backrest assembly may become loose or fail to be completely folded, which is not conducive to user experience. Utility Model Content

[0004] The embodiments of the present application provide a folding mechanism and a child stroller, which can reduce the probability that the backrest component has a small tilt angle or becomes loose when the frame is folded.

[0005] In a first aspect, an embodiment of the present application provides a folding mechanism, comprising:

[0006] Mounting seat;

[0007] A pivot seat is arranged with the mounting seat along a first direction and is connected to the mounting seat for rotation around the first direction. A blocking portion is provided on the pivot seat, and a first end of the blocking portion extends along the circumference of the pivot seat and is close to a second end of the blocking portion; and

[0008] The locking mechanism comprises a first locking member, the first locking member comprises an abutting portion, the abutting portion can slide relative to the blocking portion around a first direction, and the first locking member can move relative to the mounting seat and the pivot seat along the first direction to lock and unlock the mounting seat and the pivot seat;

[0009] Among them, the first locking member has a locking position and an unlocking position on its movable track. When the first locking member is in the locking position, the mounting seat is locked with the pivot seat, and the abutment portion is located between the first end of the blocking portion and the second end of the blocking portion. When the first locking member is in the unlocking position, the mounting seat is unlocked with the pivot seat, and the abutment portion slides to abut against the first end of the blocking portion or the second end of the blocking portion.

[0010] In some embodiments, the mounting seat is provided with a first matching portion, the pivot seat is provided with a second matching portion, and the first locking member also includes a limiting portion. When the first locking member is in the locked position, the first matching portion and the second matching portion both cooperate with the limiting portion to lock the mounting seat and the pivot seat; when the first locking member is in the unlocked position, the limiting portion disengages from the second matching portion to unlock the mounting seat and the pivot seat.

[0011] In some embodiments, the limiting portion includes a plurality of limiting teeth arranged at intervals along the circumferential side of the main body, the first matching portion includes a plurality of first matching grooves provided on the inner circumferential wall of the mounting seat, and the second matching portion includes a plurality of second matching grooves provided on the inner circumferential wall of the pivot seat; the limiting teeth include a first tooth segment and a second tooth segment, and when the first locking member is in the locked position, the first tooth segment is inserted into the first matching groove, and the second tooth segment is inserted into the second matching groove to lock the mounting seat with the pivot seat; when the first locking member is in the unlocked position, the first tooth segment is inserted into the first matching groove, and the second tooth segment is disengaged from the second matching groove to unlock the mounting seat with the pivot seat.

[0012] In some embodiments, the first end of the second tooth segment is connected to the first tooth segment, and the cross-sectional area of ​​the second tooth segment gradually increases from the second end of the second tooth segment to the first end of the second tooth segment.

[0013] In some embodiments, a first elastic member is provided between the mounting seat and the first locking member, and two ends of the first elastic member are respectively connected to the mounting seat and the first locking member. The first elastic member is used to drive the first locking member to reset from the unlocked position to the locked position.

[0014] In some of the embodiments, the pivot seat and the mounting seat are combined to form an accommodating cavity; the locking mechanism also includes a pushing piece and a pull handle, the first locking piece and the pushing piece are located in the accommodating cavity, the pushing piece is located on the side of the first locking piece and is in contact with the first locking piece, one end of the pull handle extends into the accommodating cavity and is connected to the pushing piece, the pull handle can move relative to the mounting seat and the pivot seat to drive the pushing piece to move relative to the mounting seat and the pivot seat, and then drive the first locking piece to move along the first direction to lock and unlock the mounting seat and the pivot seat.

[0015] In some embodiments, the pushing member has a driving curved surface, and the first locking member has a matching conical surface, and the driving curved surface abuts against the matching conical surface to drive the first locking member to move along the first direction.

[0016] In some embodiments, the folding mechanism also includes a driving member and a support rod, the driving member has a push inclined surface protruding outward, the axial direction of the support rod is parallel to the first direction, the mounting seat, the pivot seat and the driving member are all mounted on the support rod, the pivot seat and the driving member are both capable of rotating around the first direction relative to the support rod, the first locking member is mounted on the driving member and is slidably connected to the driving member along the first direction, the first locking member also includes a push member, the push member is spirally extended along the first direction, and the push member abuts against the push inclined surface.

[0017] In some embodiments, the pivot seat is provided with a stopper extending along its circumference, the stopper is located between the first end of the blocking portion and the second end of the blocking portion, the stopper is used to abut against the abutment portion, when the abutment portion and the stopper abut against the surface of the mounting seat close to the limit portion, the limiting portion disengages from the second mating portion.

[0018] In some of the embodiments, one end of the stopper is arranged in an arc shape, and the abutment portion is arranged in an arc shape on a surface close to the stopper in the circumferential direction of the pivot seat.

[0019] In some embodiments, there are two abutting portions, which are symmetrically arranged relative to the center of the first locking member, and there are two stoppers, which are symmetrically arranged relative to the rotation center of the pivot seat.

[0020] In a second aspect, an embodiment of the present application further provides a child stroller, comprising a folding member and a folding mechanism as in any of the above embodiments, wherein the folding member is connected to a portion of the driving member away from the support rod.

[0021] Based on the folding mechanism of the embodiment of the present application, when the first locking piece is in the locked position, the mounting seat and the pivot seat are locked, and the pivot seat cannot rotate relative to the mounting seat. When the first locking piece is in the unlocked position, the mounting seat and the pivot seat are unlocked, and the pivot seat can rotate relative to the mounting seat, and the blocking portion on the pivot seat rotates relative to the abutting portion on the first locking piece, thereby facilitating the user to adjust the backrest assembly. At the same time, after the pivot seat is rotated to a preset angle, the first end or the second end of the blocking portion on the pivot seat will abut against the abutting portion on the first locking piece, thereby limiting the continued rotation of the pivot seat, thereby reducing the probability of the backrest assembly having too small an inclination angle or the backrest assembly being loose when the frame is folded. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the child stroller of the present application after unfolding;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of the child stroller of the present application after unfolding from another perspective;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the child stroller of the present application after folding;

[0026] Figure 4 It is a cross-sectional structural diagram of the folding mechanism of the present application;

[0027] Figure 5 This is a schematic diagram of the decomposed structure of the folding mechanism of this application;

[0028] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the central connector;

[0029] Figure 7 for Figure 5 A schematic diagram of the three-dimensional structure of the first locking member;

[0030] Figure 8 for Figure 1 A schematic diagram of the cross-sectional structure of the central connector;

[0031] Fig. 9 This is a schematic diagram of the three-dimensional structure of the driving member, the first locking member and the mounting seat of the present application;

[0032] Fig.10 for Figure 3 Schematic diagram of the cross-sectional structure of the central connector.

[0033] Description of reference numerals:

[0034] 100, folding mechanism; 200, stroller; 201, backrest assembly; 202, backrest tube; 203, basket tube; 300, folding member; 1, mounting seat; 11, first matching groove; 2, pivot seat; 21, blocking portion; 211, first end of blocking portion; 212, second matching groove; 213, second end of blocking portion; 22, stopper; 221, arc-shaped end of stopper; 3, locking mechanism; 31, first locking member; 311, matching cone surface; 312, abutment portion; 313, push member; 314, limiting tooth; 3141, first tooth segment; 3142, second tooth segment; 32, push member; 321, driving curved surface; 33, handle; 4, driving member; 41, push inclined surface; 5, first elastic member; 6, support rod; 7, accommodating cavity.

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] Currently, when a foldable stroller is in use, the inclination angle of the backrest assembly is difficult to adjust or even impossible to adjust. In addition, when the frame of the foldable stroller is folded, the backrest assembly is easily loosened or cannot be completely folded, which is not conducive to user experience.

[0038] In view of this, the present application provides a folding mechanism and a child stroller. Figures 1 to 10 It is a schematic structural diagram of the folding mechanism and the child stroller according to an embodiment of the present application.

[0039] First, see Figure 4 The present application proposes a folding mechanism 100, which includes a mounting seat 1, a pivot seat 2 and a locking mechanism 3. The pivot seat 2 is arranged with the mounting seat 1 along a first direction and is connected to the mounting seat 1 for rotation around the first direction. A blocking portion 21 is provided on the pivot seat 2, and a first end of the blocking portion 21 extends along the circumference of the pivot seat 2 and is close to a second end of the blocking portion 21.

[0040] When the stroller 200 is used, in order to make the backrest tube 202 rotate only within a certain angle range and control the adjustment of the tilt angle of the backrest assembly 201 within a certain range, in some embodiments of the present application, the locking mechanism 3 includes a first locking member 31, the first locking member 31 includes an abutting portion 312, the abutting portion 312 can slide around the first direction relative to the blocking portion 21, and the first locking member 31 can move along the first direction relative to the mounting seat 1 and the pivot seat 2 to lock and unlock the mounting seat 1 and the pivot seat 2. The first locking member 31 has a locking position and an unlocking position on its movable track. When the first locking member 31 is in the locking position, the mounting seat 1 is locked with the pivot seat 2, and the abutting portion 312 is located between the first end 211 of the blocking portion and the second end 213 of the blocking portion. When the first locking member 31 is in the unlocking position, the mounting seat 1 is unlocked from the pivot seat 2, and the abutting portion 312 slides to abut against the first end 211 of the blocking portion or the second end 213 of the blocking portion.

[0041] Specifically, when the first locking piece 31 is in the locked position, the mounting seat 1 is locked with the pivot seat 2, and the pivot seat 2 cannot rotate relative to the mounting seat 1. When the first locking piece 31 is in the unlocked position, the mounting seat 1 and the pivot seat 2 are unlocked, and the pivot seat 2 can rotate relative to the mounting seat 1, and the blocking portion 21 on the pivot seat 2 rotates relative to the abutment portion 312 on the first locking piece 21, thereby facilitating the user to adjust the backrest assembly 201. At the same time, after the pivot seat 2 rotates to a preset angle, the first end 212 or the second end 213 of the blocking portion 21 on the pivot seat 2 will abut against the abutment portion 312 on the first locking piece 31, thereby limiting the pivot seat 2 from continuing to rotate, thereby preventing the backrest assembly 201 from tilting too small or the backrest assembly 201 from loosening when the child stroller 200 is folded, causing safety hazards.

[0042] When the first end 211 of the blocking portion slides close to the abutting portion 312 , the second end 213 of the blocking portion moves away from the abutting portion 312 ; when the first end 211 of the blocking portion moves away from the abutting portion 312 , the second end 213 of the blocking portion slides close to the abutting portion 312 .

[0043] In some embodiments of the present application, the pivot seat 2 and the mounting seat 1 are enclosed to form a accommodating cavity 7; the locking mechanism 3 includes a first locking member 31, a pushing member 32 and a pull handle 33, the first locking member 31 and the pushing member 32 are located in the accommodating cavity 7, the first locking member 31 can move along a first direction relative to the mounting seat 1 and the pivot seat 2, the pushing member 32 is located on the side of the first locking member 31 and contacts the first locking member 31, one end of the pull handle 33 extends into the accommodating cavity 7 and is connected to the pushing member 32, the pulling handle 33 can move relative to the mounting seat 1 and the pivot seat 2 to drive the pushing member 32 to move relative to the mounting seat 1 and the pivot seat 2, and then drive the first locking member 31 to move along the first direction to lock and unlock the mounting seat 1 and the pivot seat 2 (such as Figure 4 ).

[0044] In the embodiment provided by the present application, when the folding mechanism 100 is applied to the stroller 200, the mounting seat 1 is slidably connected to the basket tube 203 on the stroller 200. On the folding stroller 200, the mounting seat 1 can be slid to the first end of the basket tube 203, so that the end of the backrest assembly 201 away from the folding mechanism 100 can be close to the second end of the basket tube 203, which is convenient for folding the backrest assembly 201. The pivot seat 2 is connected to the backrest tube 202, and the pivot seat 2 is rotatably connected to the mounting seat 1. The pivot seat 2 can be driven to rotate around the first direction by rotating the backrest tube 202. Among them, the pivot seat 2 can be provided with a circular groove extending along its circumference, and the mounting seat 1 is provided with a circular protrusion extending along its circumference, and the circular protrusion can be inserted into the circular groove. The accommodating cavity 7 accommodates the first locking member 31 and the pushing member 32. The size of the first locking member 31 is larger than that of the pushing member 32. The mounting seat 1 and the pivot seat 2 can enclose the accommodating cavity 7 extending along the first direction, so that the first locking member 31 can only move in the first direction, and the pushing member 32 can move in the first direction and perpendicular to the first direction. The pushing member 32 can be provided with a slot extending along the first direction, and the handle can be inserted into the slot. Pulling the slot wall can drive the pushing member 32 to move perpendicular to the first direction. The first locking member 31 moves toward the direction close to the pivot seat 2 and partially extends into the pivot seat 2 to lock the mounting seat 1 and the pivot seat 2, so that the backrest assembly 201 can be positioned at the desired tilt angle. The tilt angle of the backrest assembly 201 can be adjusted according to the comfort level of the child's back resting on the backrest assembly 201. When the mounting seat 1 and the pivot seat 2 are locked, the first locking member 31 extends into the mounting seat 1 and the pivot seat 2 on both sides of the first direction respectively. When the mounting seat 1 and the pivot seat 2 are unlocked, the first locking member 31 is separated from the pivot seat 2 so that the pivot seat 2 can rotate.

[0045] In some embodiments of the present application, the mounting seat 1 is provided with a first matching portion, the pivot seat 2 is provided with a second matching portion, the first locking member 31 includes a main body and a limiting portion provided on the main body, and the first locking member 31 has a locking position and an unlocking position on its movable track. When the first locking member 31 is in the locking position, the first matching portion and the second matching portion both cooperate with the limiting portion to lock the mounting seat 1 with the pivot seat 2; when the first locking member 31 is in the unlocking position, the limiting portion is disengaged from the second matching portion to unlock the mounting seat 1 with the pivot seat 2. In this way, the locking of the mounting seat 1 with the pivot seat 2 is facilitated by the cooperation of the limiting portion with the first matching portion and the second matching portion, and the unlocking of the mounting seat 1 with the pivot seat 2 is facilitated by the disengagement of the limiting portion from the second matching portion.

[0046] Specifically, both the abutting portion 312 and the limiting portion may extend along the first direction, and the length of the abutting portion 312 along the first direction may be greater than the length of the limiting portion along the first direction.

[0047] The first matching portion may include a first matching hole, the second matching portion may include a second matching hole, the limiting portion may include a limiting protrusion, and the limiting protrusion can be inserted into the first matching hole and the second matching hole. Of course, the first matching portion may also include a first matching protrusion, the second matching portion may also include a second matching protrusion, the limiting portion may include a limiting hole, and the first matching protrusion and the second matching protrusion can both be inserted into the limiting hole.

[0048] In some embodiments of the present application, the limiting portion includes a plurality of limiting teeth 314 arranged at intervals along the circumferential side of the main body, the first matching portion includes a plurality of first matching grooves 11 provided on the inner circumferential wall of the mounting seat 1, and the second matching portion includes a plurality of second matching grooves 212 provided on the inner circumferential wall of the pivot seat 2; the limiting tooth 314 includes a first tooth segment 3141 and a second tooth segment 3142, and when the first locking member 31 is located in the locked position, the first tooth segment 3141 is inserted into the first matching groove 11, and the second tooth segment 3142 is inserted into the second matching groove 212 to lock the mounting seat 1 with the pivot seat 2; when the first locking member 31 is located in the unlocked position, the first tooth segment 3141 is inserted into the first matching groove 11, and the second tooth segment 3142 is disengaged from the second matching groove 212 to unlock the mounting seat 1 with the pivot seat 2.

[0049] It can be understood that by setting the first matching groove 11 on the inner circumferential wall of the mounting seat 1 and the second matching groove 212 on the inner circumferential wall of the pivot seat 2, when the first tooth segment 3141 and the second tooth segment 3142 of the limiting tooth 314 are respectively inserted into the first matching groove 11 and the second matching groove 212, the two sides of the first locking member 31 can be respectively located inside the mounting seat 1 and the pivot seat 2, thereby locking the mounting seat 1 and the pivot seat 2; when the first tooth segment 3141 is inserted into the first matching groove 11 and the second tooth segment 3142 is disengaged from the second matching groove 212, the first locking member 31 can only be located inside the mounting seat 1, thereby unlocking the mounting seat 1 and the pivot seat 2; at the same time, the folding mechanism 100 can be made more compact and the space occupied by the first locking member 31 can be reduced, wherein a plurality of first matching grooves 11 can be arranged at intervals along the circumference of the mounting seat 1, and a plurality of second matching grooves 212 can be arranged at intervals along the circumference of the pivot seat 2. Two first matching teeth can be arranged at intervals along the circumference of the inner circumferential wall of the mounting seat 1, and the two first matching teeth can extend along the first direction. The two first matching teeth and the inner circumferential wall of the mounting seat 1 can enclose a first matching groove 11. When the first tooth segment 3141 is inserted into the first matching groove 11, the first tooth segment 3141 is located between the two first matching teeth. Two second matching teeth can be arranged at intervals along the circumference of the inner circumferential wall of the pivot seat 2, and the two second matching teeth can extend along the first direction. The two second matching teeth and the inner circumferential wall of the pivot seat 2 can enclose a second matching groove 212. When the second tooth segment 3142 is inserted into the second matching groove 212, the second tooth segment 3142 is located between the two first matching teeth.

[0050] Furthermore, the first end of the second tooth segment 3142 is connected to the first tooth segment 3141, and the cross-sectional area of ​​the second tooth segment 3142 gradually increases from the second end of the second tooth segment 3142 to the first end of the second tooth segment 3142. With such a configuration, when the first locking member 31 is in the locked position, when the pivot seat 2 is rotated due to an erroneous operation, the second tooth segment 3142 can be prevented from being greatly deformed or broken. The side edge of the second tooth segment 3142 can form a certain angle with the side edge of the first tooth segment 3141, so that the side edge of the second tooth segment 3142 can form an inclined surface, and the inclined surface here can play a role of guiding engagement for the second matching tooth, thereby facilitating the second matching tooth to be inserted between two adjacent second tooth segments 3142 along the inclined surface. Among them, the second tooth segment 3142 can also be arranged in a stepped shape, and the first tooth segment 3141 can also be arranged in a cubic shape.

[0051] In some embodiments of the present application, a first elastic member 5 is provided between the mounting seat 1 and the first locking member 31, and the two ends of the first elastic member 5 are respectively connected to the mounting seat 1 and the first locking member 31, and the first elastic member 5 is used to drive the first locking member 31 to reset from the unlocked position to the locked position. In the process of the first locking member 31 moving from the locked position to the unlocked position, that is, when the handle 33 is pulled outward, the first elastic member 5 will be compressed, and after the mounting seat 1 and the pivot seat 2 are unlocked, the backrest assembly 201 can be placed at a desired tilt angle. When the backrest assembly 201 is positioned at the desired tilt angle, it is only necessary to release the handle 33, and the first locking member 31 will move from the unlocked position to the locked position under the action of the elastic force of the first elastic member 5, which is more convenient and quick.

[0052] In order to enable the push member 32 to drive the first locking member 31 to move along the first direction, the push member 32 may be provided with a first inclined surface, and the first locking member 31 may be provided with a second inclined surface, and the first inclined surface and the second inclined surface abut each other. In some embodiments of the present application, the push member 32 has a driving curved surface 321, and the first locking member 31 has a matching conical surface 311, and the driving curved surface 321 abuts against the matching conical surface 311 to drive the first locking member 31 to move along the first direction. In this way, the contact area between the push member 32 and the first locking member 31 can be reduced, and the friction resistance between the push member 32 and the first locking member 31 can be reduced, which is beneficial to the movement of the first locking member 31, wherein the driving curved surface 321 may include an arc surface. By providing the matching conical surface 311, the pull handle 33 can drive the push member 32 to push the first locking member 31 to move along the first direction in more movement directions.

[0053] After using the stroller 200, it is necessary to fold the stroller 200 for storage. When folding the stroller 200, the backrest tube 202 is rotated. Even if the pivot seat 2 is rotated, in order to enable the pivot seat 2 to rotate to a larger angle to facilitate the folding of the stroller 200, it is necessary to disengage the abutment portion 312 from the pivot seat 2. In some embodiments of the present application, the folding mechanism 100 also includes a driving member 4 and a support rod 6. The driving member 4 has a push inclined surface 41 protruding outwardly. The axial direction of the support rod 6 is parallel to the first direction. The mounting seat 1, the pivot seat 2 and the driving member 4 are all sleeved on the support rod 6. The pivot seat 2 and the driving member 4 can rotate around the first direction relative to the support rod 6. The first locking member 31 is sleeved on the driving member 4 and is slidably connected to the driving member 4 along the first direction. The first locking member 31 also includes a push member 313. The push member 313 is spirally extended along the first direction, and the push member 313 abuts against the push inclined surface 41. Before rotating the pivot seat 2, the driving member 4 can be rotated first. During the rotation of the driving member 4, the pushing inclined surface 41 is always in contact with the resisting member 313. In this way, the resisting member 313 can drive the main body and the limiting portion of the first locking member 31 to move. The first locking member 31 will move toward the mounting seat 1, and the limiting portion and the abutting portion 312 will both be separated from the pivot seat 2. At this time, the pivot seat 2 can be rotated to a larger angle to smoothly fold the child stroller 200.

[0054] In some embodiments of the present application, the pivot seat 2 is provided with a stopper 22 extending along its circumference, the stopper 22 is located between the first end of the blocking portion 21 and the second end of the blocking portion 21, the stopper 22 is used to abut against the abutment portion 312, and when the abutment portion 312 abuts against the surface of the stopper 22 close to the mounting seat 1, the limiting portion is disengaged from the second matching portion. The stopper 22 has a certain thickness so that there is a certain height difference between the stopper 22 and the blocking portion 21. When the driving member 4 is rotated to move the first locking member 31 toward the mounting seat 1, when the limiting portion is separated from the pivot seat 2 and the abutting portion 312 is not separated from the pivot seat 2, the pivot seat 2 can be rotated to make the stopper 22 correspond to the abutting portion 312, and the driving member 4 is released. The abutting portion 312 will abut against the surface of the stopper 22 close to the mounting seat 1 under the elastic force of the first elastic member 5, while the limiting portion is still separated from the pivot seat 2. At this time, the child stroller 200 can be folded by rotating the pivot seat 2. In this way, the child stroller 200 can be folded by rotating the driving member 4 at a small angle without the abutting portion 312 being separated from the pivot seat 2. Of course, there is no need to continuously use external force to rotate the driving member 4, which is more labor-saving.

[0055] Furthermore, one end of the stopper 22 is arranged in an arc shape, and the surface of the abutting portion 312 close to the stopper 22 in the circumferential direction of the pivot seat 2 is arranged in an arc shape. In this way, after the driving member 4 is rotated to make the limiting portion detach from the pivot seat 2, it is only necessary to rotate the pivot seat 2 to make the arc-shaped end 221 of the stopper contact the arc-shaped surface of the abutting portion 312 and push the abutting portion, so that the abutting portion 312 abuts against the surface of the stopper 22 close to the mounting seat 1, which can further save effort.

[0056] In some embodiments of the present application, there are two abutting portions 312, which are symmetrically arranged relative to the center of the first locking member 31, and there are two stoppers 22, which are symmetrically arranged relative to the rotation center of the pivot seat 2. The arrangement of the two abutting portions 312 and the stopper 22 allows the pivot seat 2 to rotate and the stopper 22 to correspond to the abutting portions 312. After the abutting portions 312 abut against the surface of the stopper 22 close to the mounting seat 1, the first locking member 31 can be prevented from tilting to the side away from the abutting portions 312 under the elastic force of the first elastic member 5, so that the pivot seat 2 can rotate more smoothly, which is conducive to the folding of the child stroller 200.

[0057] In a second aspect, the present application embodiment further provides a child stroller 200, see Figure 1 and Figure 2 , including a folding member 300 and a folding mechanism 100 as in any of the above embodiments, the folding member 300 is connected to the portion of the driving member 4 away from the support rod 6. The folding member 300 is connected to the portion of the driving member 4 away from the support rod 6, and the driving member 4 can be rotated by pulling the folding member 300 outwards. The arrangement of the folding member 300 facilitates the driving member 4 to rotate at a long distance. The folding member 300 may include a webbing.

[0058] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A folding mechanism, characterized in that: include: Mounting seat (1); A pivot seat (2) is arranged along a first direction with the mounting seat (1) and is connected to the mounting seat (1) for rotation around the first direction, a blocking portion (21) is provided on the pivot seat (2), a first end of the blocking portion (21) extends along the circumference of the pivot seat (2) and is close to a second end of the blocking portion (21); and The locking mechanism (3) comprises a first locking member (31), wherein the first locking member (31) comprises an abutting portion (312), wherein the abutting portion (312) is capable of sliding relative to the blocking portion (21) around the first direction, and the first locking member (31) is capable of moving relative to the mounting seat (1) and the pivot seat (2) along the first direction so as to lock and unlock the mounting seat (1) and the pivot seat (2); Wherein, the first locking member (31) has a locking position and an unlocking position on its movable track. When the first locking member (31) is located at the locking position, the mounting seat (1) is locked with the pivot seat (2), and the abutting portion (312) is located between the first end of the blocking portion (21) and the second end of the blocking portion (21); when the first locking member (31) is located at the unlocking position, the mounting seat (1) is unlocked with the pivot seat (2), and the abutting portion (312) slides to abut against the first end of the blocking portion (21) or the second end of the blocking portion (21).

2. The folding mechanism according to claim 1, characterized in that: The mounting seat (1) is provided with a first matching portion, the pivot seat (2) is provided with a second matching portion, and the first locking member (31) further comprises a main body and a limiting portion arranged on the main body; When the first locking member (31) is located at the locking position, the first matching portion and the second matching portion both match with the limiting portion, so that the mounting seat (1) and the pivot seat (2) are locked; when the first locking member (31) is located at the unlocking position, the limiting portion disengages from the second matching portion, so that the mounting seat (1) and the pivot seat (2) are unlocked.

3. The folding mechanism according to claim 2, characterized in that: The limiting portion comprises a plurality of limiting teeth (314) arranged at intervals along the circumference of the main body, the first matching portion comprises a plurality of first matching grooves (11) arranged on the inner circumferential wall of the mounting seat (1), and the second matching portion comprises a plurality of second matching grooves (212) arranged on the inner circumferential wall of the pivot seat (2); The limiting tooth (314) includes a first tooth segment (3141) and a second tooth segment (3142). When the first locking member (31) is located at the locking position, the first tooth segment (3141) is inserted into the first matching groove (11), and the second tooth segment (3142) is inserted into the second matching groove (212), so as to lock the mounting seat (1) with the pivot seat (2); when the first locking member (31) is located at the unlocking position, the first tooth segment (3141) is inserted into the first matching groove (11), and the second tooth segment (3142) is disengaged from the second matching groove (212), so as to unlock the mounting seat (1) with the pivot seat (2).

4. The folding mechanism according to claim 3, characterized in that: The first end of the second tooth segment (3142) is connected to the first tooth segment (3141), and the cross-sectional area of ​​the second tooth segment (3142) gradually increases from the second end of the second tooth segment (3142) to the first end of the second tooth segment (3142).

5. The folding mechanism according to claim 1, characterized in that: A first elastic member (5) is provided between the mounting seat (1) and the first locking member (31), and two ends of the first elastic member (5) are respectively connected to the mounting seat (1) and the first locking member (31), and the first elastic member (5) is used for driving the first locking member (31) to return from the unlocking position to the locking position.

6. The folding mechanism according to claim 1, characterized in that: The pivot seat (2) and the mounting seat (1) enclose a receiving cavity (7); The locking mechanism (3) also includes a pushing member (32) and a pulling handle (33). The first locking member (31) and the pushing member (32) are located in the accommodating cavity (7). The pushing member (32) is located on the side of the first locking member (31) and is in contact with the first locking member (31). One end of the pulling handle (33) extends into the accommodating cavity (7) and is connected to the pushing member (32). The pulling handle (33) can move relative to the mounting seat (1) and the pivot seat (2) to drive the pushing member (32) to move relative to the mounting seat (1) and the pivot seat (2), thereby driving the first locking member (31) to move along the first direction to lock and unlock the mounting seat (1) and the pivot seat (2).

7. The folding mechanism according to claim 6, characterized in that: The pushing member (32) has a driving curved surface (321), and the first locking member (31) has a matching conical surface (311). The driving curved surface (321) abuts against the matching conical surface (311) to drive the first locking member (31) to move along the first direction.

8. The folding mechanism according to claim 1, characterized in that: The folding mechanism further comprises: A driving member (4), wherein the driving member (4) has a push inclined surface (41) protruding outward; and A support rod (6), wherein the axial direction of the support rod (6) is parallel to the first direction, the mounting seat (1), the pivot seat (2) and the driving member (4) are all mounted on the support rod (6), the pivot seat (2) and the driving member (4) are both capable of rotating around the first direction relative to the support rod (6), the first locking member (31) is mounted on the driving member (4) and is slidably connected to the driving member (4) along the first direction, the first locking member (31) also includes a push member (313), the push member (313) is spirally extended along the first direction, and the push member (313) abuts against the push inclined surface (41).

9. The folding mechanism according to claim 2, characterized in that: The pivot seat (2) is provided with a stopper (22) extending along its circumference, and the stopper (22) is located between the first end of the blocking portion (21) and the second end of the blocking portion (21), and the stopper (22) is used to abut against the abutting portion (312); when the abutting portion (312) and the stopper (22) abut against the surface of the mounting seat (1), the limiting portion disengages from the second matching portion.

10. The folding mechanism according to claim 9, characterized in that: One end of the stopper (22) is arranged in an arc shape, and the surface of the abutment portion (312) close to the stopper (22) in the circumferential direction of the pivot seat (2) is arranged in an arc shape.

11. The folding mechanism according to claim 9, characterized in that: The abutting portions (312) are configured in two, and the two abutting portions (312) are symmetrically arranged relative to the center of the first locking member (31); the stopping members (22) are configured in two, and the two stopping members (22) are symmetrically arranged relative to the rotation center of the pivot seat (2).

12. A baby stroller, characterized in that: It comprises a folding member and a folding mechanism as claimed in any one of claims 1 to 11, wherein the folding member is connected to a portion of the driving member (4) away from the supporting rod (6).

Images