Locking structure and buggy with same

Abstract

The locking structure is used for connecting a first object and a second object to a third object, wherein the first object and the second object can rotate relative to each other. The locking structure is connected to the first object and the second object, and is releasably connected to the third object; wherein rotation of the second object relative to the first object allows release of the locking structure from the third object. The invention further discloses a buggy.

Description

[0001] This application is a divisional application of Chinese patent application No. 202111499757.6, filed on December 9, 2021, and entitled “Locking mechanism and children’s stroller with locking mechanism”. Technical Field

[0002] The present application relates to a locking structure and a baby stroller having the locking structure. Background Art

[0003] A baby stroller is a common infant product. It usually has a frame, wheels, and a seat. The frame is used to carry and connect other components. The wheels are located below the frame to provide the baby stroller with a walking function, and the seat is installed on the frame to provide the child with a riding function. The frame includes a handrail, which is located above the frame so that the caregiver can push the baby stroller.

[0004] In existing child strollers, the seat can be detachably mounted to the frame via a locking mechanism, and the seat can be reversibly engaged, that is, it can be mounted on the frame in a forward or reverse direction, so that the child can face the caregiver or turn his / her back to the caregiver. Summary of the invention

[0005] A locking structure according to the present application is used to connect a first object and a second object that can rotate relative to each other to a third object. The locking structure is connected to the first object and the second object, and is releasably connected to the third object; wherein the rotation of the second object relative to the first object allows the locking structure to be released from the third object.

[0006] In one embodiment, the locking structure includes: a first shell, fixed to the first object and having a first rotating disk; a second shell, fixed to the second object and having a second rotating disk, the first rotating disk and the second rotating disk are stacked along a laterally extending rotation axis and can rotate relative to each other; a fixed seat, fixed to the third object; a socket, fixed to the first shell, extending outward from the outer periphery of the first rotating disk, and releasably inserted into the fixed seat; a locking member, at least partially accommodated in the socket, and able to move between a locking position extending from the socket and engaging with the third object and a release position retracted into the socket and disengaged; wherein a protrusion is provided on the outer periphery of the second rotating disk, and when the second rotating disk rotates from a first angular position to a second angular position relative to the first rotating disk, the protrusion can act on the locking member to drive the locking member from the locking position to the release position.

[0007] In one embodiment, the locking structure also includes: a slider, which can be slidably disposed on the socket and can slide between a proximal position close to the second shell and a distal position away from the second shell; when the second rotating disk rotates from the first angular position to the second angular position, the protrusion abuts against the slider, driving the slider from the proximal position to the distal position; the slider engages with the locking member, and when moving from the proximal position to the distal position, drives the locking member from the locking position to the release position.

[0008] In one embodiment, the slider has two side walls and a accommodating space formed between the two side walls, at least one of the side walls is provided with a same sliding groove extending obliquely relative to the vertical and horizontal directions, the locking element is inserted in the accommodating space, and a pin extending from one side of the locking element can be slidably inserted in the sliding groove, so that the vertical movement of the slider from the proximal position to the distal position is converted into the lateral movement of the locking element from the locking position to the release position.

[0009] In one embodiment, the locking structure also includes: an engaging member and a driving member, which are stacked along the rotation axis in the accommodating space formed between the first shell and the second shell, the engaging member being inserted into the first shell in a shape-fitting manner, and the driving member being accommodated in the second shell and abutting against or connected to the engaging member; wherein the driving member is driven to rotate around the rotation axis, and the rotation of the driving member drives the engaging member to move along the lateral direction, so that the engaging member is partially moved out of the first shell and inserted into the second shell, or is separated from the second shell and moved into the first shell. When the engaging member is inserted into the second shell, the engaging member locks the second shell and the first shell to prevent the two from rotating relative to each other. At this time, the second rotating disk is in the first angular position. When the engaging member is separated from the second shell, the second shell can rotate relative to the first shell.

[0010] In one embodiment, the driving member is a disc-shaped component, and at least two driving member inclined surfaces facing the second shell are evenly distributed along the circumferential direction at its periphery, and a corresponding second shell inclined surface facing the at least two driving member inclined surfaces is provided on the inner side of the second shell. When the driving member is driven to rotate, the driving member inclined surface interacts with the second shell inclined surface to convert the rotational movement of the driving member relative to the second shell into a lateral movement of the engaging member toward the first shell, so that the engaging member disengages from the second shell.

[0011] In one embodiment, the engaging member is roughly disc-shaped and has engaging portions protruding outward at both ends of its circumference in the radial direction, and the inner side of the second shell is provided with an engaging groove that matches the shape of the engaging member; the locking structure also includes a first elastic member, which is arranged between the first shell and the engaging member to bias the engaging member into the second shell.

[0012] In one embodiment, the locking structure also includes a second elastic member, which is arranged between the slider and the socket to bias the slider toward the proximal position; the locking member has a locking tongue that can extend from the socket and be inserted into the third object, and the outer surface of the locking tongue along the direction in which the socket is inserted into the fixed seat is provided with a locking member inclined surface, so that when the locking structure is inserted into the fixed seat, the fixed seat can temporarily retract the locking member into the socket with the help of the locking member inclined surface.

[0013] In one embodiment, the locking structure further includes a traction member having a traction member second end connected to the driving member and a traction member first end extending to the outside of the locking structure, and when the traction member first end is pulled, the traction member can drive the driving member to rotate.

[0014] In one embodiment, the locking structure also includes an operating device, which is installed on the second object and includes: a sliding connection member, which can be installed on the second object in a lateral sliding manner; and an operating component, which can be installed on the second object in a slidable or rotatable manner and is operatively connected to the sliding connection member; wherein the first end of the traction member of the traction member is connected to the sliding connection member, and the operation of the operating component can drive the sliding connections to slide toward each other, thereby pulling the traction member.

[0015] In one embodiment, the operating component is provided with a driving rib with a driving inclined surface, and the sliding connector is provided with a driving groove portion engaged with the driving rib. The driving rib drives the sliding connector to slide by acting on the driving groove portion with the help of the driving inclined surface.

[0016] In one embodiment, the angular difference between the first angular position and the second angular position is between 120 degrees and 180 degrees; the driving member inclined surface and the second shell inclined surface are arc-shaped inclined surfaces that can mesh with each other.

[0017] A children's vehicle according to the present application includes: a frame; wheels installed under the frame; a seat that can be detachably installed on the frame through a locking structure according to the present application, wherein the first object is a lower support tube of the seat, the second object is an upper support tube of the seat, and the third object is the frame; the lower support tube and the upper support tube are respectively U-shaped, and the two end portions of the U-shaped legs of the lower support tube are correspondingly connected with the two end portions of the U-shaped legs of the upper support tube via the locking structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which:

[0019] Figure 1 is a three-dimensional diagram of a frame and a seat of a baby stroller according to the present application. For the sake of ease of illustration, only a portion of the frame is shown in the figure, and the fabric portion is not shown;

[0020] Figure 2 yes Figure 1 a perspective view of a portion of the frame shown;

[0021] Figure 3 and Figure 4 are two three-dimensional views of the seat of the child vehicle according to the present application from different angles, wherein the upper support tube is in an unfolded state;

[0022] Figure 5 is a three-dimensional view of the saddle, wherein the upper support tube is in a folded state;

[0023] Fig. 6A is a three-dimensional view of a vehicle seat, in which the operating components on the armrest are shown in an exploded state. Figure 6B yes Fig. 6A A partial enlarged view of the boxed portion in FIG.

[0024] Fig. 7A is a perspective view of a vehicle seat with the upper support tube and armrest removed to show that the operating member is connected to the locking structure by a traction member, Figure 7B yes Fig. 7A A partial enlarged view of the boxed portion in FIG.

[0025] Fig. 8A is a perspective view of a vehicle seat, wherein the locking structure is shown in an exploded view, Figure 8B yes Fig. 8A A partial enlarged view of the boxed portion in FIG.

[0026] Fig.9A is a perspective view of a vehicle seat in an unfolded state, wherein the outer shell of the locking structure is removed to show the internal structure, Fig. 9B yes Fig.9A A partial enlarged view of the boxed portion in FIG.

[0027] Fig.10 is a stereoscopic view of the outer shell as viewed from the inside;

[0028] Fig.11A is a perspective view of a vehicle seat, wherein the upper support tube is in a partially folded state, and wherein the outer shell of the locking structure is removed to show the internal structure, Fig. 11B yes Fig.11A A partial enlarged view of the boxed portion in FIG.

[0029] Fig. 12A is a perspective view of a vehicle seat, wherein the upper support tube is in an unfolded state, the locking member is in a locked position, and wherein the locking mechanism is vertically sectioned along the pivot axis of the upper support tube, Fig. 12B yes Fig. 12A A partial enlarged view of the boxed portion in FIG.

[0030] Fig. 12C is a front view of the vehicle seat, wherein the upper support tube is in an unfolded state, the locking member is in a released position, and wherein the locking mechanism is vertically sectioned along the pivot axis of the upper support tube, Fig.12D yes Fig. 12C A partial enlarged view of the boxed portion in FIG.

[0031] Fig.13A is a perspective view of a vehicle seat with the upper support tube in an expanded state and with the outer surface of the socket removed to illustrate the slider and the locking member; Fig. 13B yes Fig.13A A partial enlarged view of the boxed portion in FIG.

[0032] Fig.14A is a perspective view of a vehicle seat with the upper support tube in a partially folded state and with the outer surface of the socket removed to illustrate the slider and the locking member; Fig. 14B yes Fig.14A A partial enlarged view of the boxed portion in FIG.

[0033] Fig.15A is a perspective view of a vehicle seat with the upper support tube in a folded state and with the outer surface of the socket removed to illustrate the slider and the locking member; Fig. 15B yes Fig.15A A partial enlarged view of the boxed part.

[0034] Reference numerals list

[0035] 100 locking structure

[0036] 110 first housing (inner housing)

[0037] 111 First Rotating Disk

[0038] 112 First connection

[0039] 113 First axis hole

[0040] 114 Storage Tank

[0041] 120 second housing (outer housing)

[0042] 121 Second rotating disk

[0043] 122 Second connection

[0044] 123 Second axis hole

[0045] 124 snap-in slot

[0046] 125 raised part

[0047] 126 second shell inclined surface

[0048] 130 socket

[0049] 131 Opening

[0050] 140 snap-fit ​​parts

[0051] 141 Ring

[0052] 142 snap-fit ​​part

[0053] 150 Drive parts

[0054] 151 Driving inclined surface

[0055] 152 traction member second end connection portion

[0056] 160 Sliders

[0057] 161 Cam contact part

[0058] 162 Chute

[0059] 170 Locking piece

[0060] 171 Lock tongue

[0061] 172 Pin hole

[0062] 173 Pins

[0063] 174 Locking piece inclined surface

[0064] 180 Fixed seat

[0065] 181 socket slot

[0066] 191 first elastic member (locking member elastic member)

[0067] 192 second elastic member (slider elastic member)

[0068] 200 Lower support tube (first object)

[0069] 300 upper support tube (second object)

[0070] 400 frame (third object)

[0071] 500 Operating device

[0072] 520 Operating parts

[0073] 530 Sliding connector

[0074] 540 Mount

[0075] 550 Drive Rib

[0076] 560 Drive ramp

[0077] 570 driving groove part

[0078] 510 Traction Parts

[0079] 511 first end of traction member

[0080] 512 traction member second end

[0081] X Horizontal Axis DETAILED DESCRIPTION

[0082] While the invention is illustrated and described herein with reference to particular embodiments, the invention should not be limited to the details shown, rather various modifications may be made to the details within the range and scope of equivalents of the claims and without departing from the invention.

[0083] The descriptions of directions such as “front”, “rear”, “up” and “down” involved in this article are only for the convenience of understanding. The present invention is not limited to these directions, but can be adjusted according to actual conditions. Although the present application has been described with reference to typical embodiments, the terms used are illustrative and exemplary rather than restrictive terms.

[0084] First refer to Figures 1 to 5 The frame and seat of a child vehicle according to the present application are generally described.

[0085] As shown in the figure, the frame 400 generally extends in the up-down direction, and the upper end is tilted backward. The frame 400 has two vertical parts arranged side by side on the left and right, and a transverse part connecting the two vertical parts transversely at the top. Wheels (not shown in the present application) are installed below the vertical parts, and the transverse part also serves as a handrail for the user to push the baby stroller.

[0086] See also Figure 1 to Figure 2The two vertical parts of the frame 400 are respectively fixedly mounted with a fixing seat 180, and a socket groove 181 is provided on the fixing seat 180. The socket groove 181 is generally opened upward so that the socket 130 of the locking structure 100 can be inserted into the socket groove 181.

[0087] The vehicle seat is detachably mounted on the vehicle frame 400 via a locking structure 100. The vehicle seat includes an upper support tube 300, a lower support tube 200, a backrest (not shown) mounted on the upper support tube 300, and a seat (not shown) mounted on the lower support tube 200. The lower support tube 200 and the upper support tube 300 are respectively U-shaped, and the two end portions of the U-shaped legs of the lower support tube 200 are respectively connected to the two end portions of the U-shaped legs of the upper support tube 300 via the locking structure 100.

[0088] exist Figure 3 to Figure 4 In the unfolded state of the baby stroller shown, the upper support tube 300 extends obliquely upward from the locking structure 100, and the lower support tube 200 extends obliquely downward from the locking structure 100, and the extending directions of the two are approximately 180 degrees. Figure 5 In the folded state of the baby stroller shown, the upper support tube 300 is rotated downward by the locking structure 100 to substantially overlap with the lower support tube 200 .

[0089] The locking structure 100 of the present application generally includes a first housing 110, a second housing 120, a fixing seat 180, a socket 130, an operating device 500 and a pulling member 510, wherein the first housing 110 is fixed to the lower support tube 200 of the vehicle seat, the second housing 120 is fixed to the upper support tube 300 of the vehicle seat, the fixing seat 180 is fixed to the frame 400, and the socket 130 is fixed to the first housing 110. The second housing 120 can rotate relative to the first housing 110 around the transverse axis X so that the upper support tube 300 rotates relative to the lower support tube 200. The operating device 500 according to the present application is arranged on the transverse portion of the upper support tube 300, and the user can unlock the rotation of the second housing 120 through the operating device 500. Only when the upper support tube 300 rotates to a position substantially overlapping with the lower support tube 200, the socket 130 can be separated from the fixing seat 180. In this way, the user must first fold the bicycle seat before removing the bicycle seat from the bicycle frame 400 , thereby preventing the user from performing a dangerous operation of removing the bicycle seat together with the child from the bicycle frame 400 .

[0090] Now refer to 6A to 7B The operating device 500 according to the present application is described in detail.

[0091] As shown in the figure, the operating device 500 is installed on the lateral portion of the upper support tube 300 and includes: a sliding connection member 530 and an operating component 520 .

[0092] The sliding connector 530 can be installed on the upper support tube 300 in a slidable manner in the lateral direction. More specifically, the sliding connector 530 is disposed in the hollow interior of the lateral portion of the upper support tube 300 and can slide along the lateral portion. The operating member 520 can be installed on the upper support tube 300 in a slidable or rotatable manner and is operatively connected to the sliding connector 530. Both ends of the traction member 510 are respectively connected to the sliding connector 530 and the driving member 150. More specifically, the traction member 510 has a traction member second end 512 connected to the driving member 150, and a traction member first end 511 extending to the outside of the locking structure 100 and connected to the sliding connector 530. When the traction member 510 is pulled, it will drive the driving member 150 to unlock the rotation of the second housing 120.

[0093] In this embodiment, the operating member 520 is configured to be rotatably mounted in the mounting seat 540 so as to rotate along the transverse axis. A driving rib 550 is provided on the outer periphery of the operating member 520, and the driving rib 550 has a driving inclined surface 560 extending obliquely, and a driving groove portion 570 engaged with the driving rib 550 is provided on the sliding connection member 530. The driving rib 550 acts on the driving groove portion 570 by means of the driving inclined surface 560 to drive the sliding connection member 530 to slide. The traction member first end 511 of the traction member 510 is connected to the sliding connection member 530, and the operation of the operating member 520 can drive the sliding connection member 530 to slide toward each other, thereby pulling the traction member 510. In this way, when the user rotates the operating member 520, the traction member 510 will be pulled and moved toward the middle, that is, in the direction away from the first shell 110 and the second shell 120.

[0094] In other embodiments, the operating component 520 may also be configured to move linearly, for example, being pulled outward or pushed inward relative to the lateral portion of the upper support tube 300 , so as to drive the lateral movement of the sliding connector 530 .

[0095] Now refer to 8A to 12B The specific structure of the locking structure 100 is described.

[0096] As shown in the figure, in addition to the first housing 110, the second housing 120, the fixing seat 180, and the socket 130 described above, the locking structure 100 also includes a locking member 170, a slider 160 ( Fig. 14B ), the engaging member 140 , the driving member 150 , and the first elastic member 191 and the second elastic member 192 .

[0097] Reference Figure 8B, the first shell 110 has: a first rotating disk 111, a first connecting portion 112, a first axial hole 113, and a receiving groove 114. Among them, the first rotating disk 111 is a disk-shaped portion for coupling to the second shell 120. The first connecting portion 112 extends obliquely downward from the outer periphery of the first rotating disk 111, and is used to couple to the lower support tube 200. Its form can be set according to the form of the lower support tube 200, for example, it can be set as a sleeve or an insert. The first axial hole 113 is opened at the center of the first rotating disk 111 for inserting a horizontal rotating shaft therein. The receiving groove 114 is opened on the inner surface of the first rotating disk 111 and is defined by a wall extending radially from the inner surface toward the second rotating disk 121 (i.e., in the lateral direction of the baby carriage). The shape of the receiving groove 114 corresponds to the snap-fit ​​member 140, and is used to accommodate the snap-fit ​​member 140.

[0098] Reference Fig.10 The second shell 120 has: a second rotating disk 121, a second connecting portion 122, a second axial hole 123, a snap-fitting groove 124, a protrusion 125, and a second shell inclined surface 126. Among them, the second rotating disk 121 is a disk-shaped portion for joining to the first shell 110, and can have approximately the same diameter as the first rotating disk 111. The first rotating disk 111 and the second rotating disk 121 are stacked along a laterally extending rotation axis and can rotate relative to each other. The first rotating disk 111 and the second rotating disk 121 can be buckled together to form a disk-shaped storage space, which is used to accommodate the driving member 150, the snap-fitting member 140, and the first elastic member 191.

[0099] A protrusion 125 is provided on the outer periphery of the second rotating disk 121. When the second rotating disk 121 rotates from a first angular position (expanded position) to a second angular position (folded position) relative to the first rotating disk 111, the protrusion 125 can act on the locking member 170 to drive the locking member 170 from the locked position to the released position, which will be described in detail later.

[0100] In this embodiment, the angular difference between the first angular position and the second angular position may be between 120 degrees and 180 degrees.

[0101] The second connecting portion 122 extends obliquely upward from the outer periphery of the second rotating disk 121 for coupling to the upper support tube 300, and its form can be set according to the form of the upper support tube 300, for example, it can be set as a sleeve or an insert. The second shaft hole 123 is opened at the center of the second rotating disk 121 for inserting the horizontal rotating shaft therein. In the embodiment of the present application, the rotating shaft is directly integrated on the second shell 120, while in other embodiments, the rotating shaft can be an independent component. The engaging groove 124 is opened on the inner surface of the second rotating disk 121, and is defined by a wall extending radially from the inner surface toward the first rotating disk 111 (i.e., the lateral direction of the baby carriage). The shape of the engaging groove 124 corresponds to the engaging member 140 and is used to accommodate the engaging member 140. The second shell inclined surface 126 is arranged on the inner side of the second shell 120 and corresponds to the driving inclined surface 151 of the driving member 150. More specifically, the second shell inclined surface 126 can be a spiral inclined surface extending along the circumference of the second shell 120 and gradually rising toward the driving member 150.

[0102] The socket 130 extends downward from the outer periphery of the first housing 110. In the present application, the socket 130 and the first housing 110 are integrated into one component. In other embodiments, the two may also be independent components installed together. The socket 130 is roughly rectangular and corresponds to the shape of the socket slot 181 in the fixing seat 180. The socket 130 is provided with an opening 131 on the side facing the fixing seat 180, and the locking member 170 can extend to the outside of the socket 130 through the opening 131 so as to be inserted into the fixing seat 180.

[0103] Reference Fig. 12B and 13B The locking member 170 is at least partially accommodated in the socket 130 and can extend from the opening 131 of the socket 130. The locking member 170 can move between a locking position in which the locking member is engaged with the fixing seat 180 and a release position in which the locking member is retracted into the socket 130 and disengaged. More specifically, the locking member 170 comprises a locking tongue 171, a pin hole 172, a pin 173, and a locking member inclined surface 174. The locking tongue 171 is a portion extending from the socket 130. The locking member inclined surface 174 is arranged on the outer surface of the locking tongue 171 along the direction in which the socket 130 is inserted into the fixing seat 180, so that when the locking structure 100 is inserted into the fixing seat 180, the fixing seat 180 can temporarily retract the locking member 170 into the socket 130 by means of the locking member inclined surface 174. The pin hole 172 is a through hole opened transversely along the locking member 170, and the pin 173 is transversely inserted into the pin hole 172.

[0104] Reference Fig. 13B, the slider 160 can be slidably placed on or in the socket 130. The slider 160 has a cam contact portion 161 and a slide groove 162. The cam contact portion 161 is arranged at one end close to the second shell 120, and the slide groove 162 is opened at the same position of the two side walls of the slider 160. The slider 160 can slide between a proximal position close to the second shell 120 and a distal position away from the second shell 120. In this embodiment, the slider 160 is configured to slide approximately longitudinally. In other embodiments, the slider 160 can also slide along an inclined direction. A second elastic member 192 (see Fig. 12B , Fig.12D ), which biases the slider 160 toward the proximal position.

[0105] When the protrusion 125 of the second rotating disk 121 is engaged with the slider 160, when the second rotating disk 121 (and the upper support tube 300) rotates from the first angular position to the second angular position, the protrusion 125 abuts against the slider 160, driving the slider 160 from the proximal position to the distal position.

[0106] The slider 160 is engaged with the locking member 170, and when moving from the proximal position to the distal position, the locking member 170 is driven from the locking position to the releasing position. More specifically, the slider 160 has two side walls and a receiving space formed between the two side walls, and the two side walls are respectively provided with identical slide grooves 162 extending obliquely with respect to both the vertical and horizontal directions. The locking member 170 is inserted into the receiving space, and the pins 173 extending from the two sides of the locking member 170 can be slidably inserted into the slide grooves 162 on the two side walls, respectively, so that the vertical movement of the slider 160 from the proximal position to the distal position can be converted into the lateral movement of the locking member 170 from the locking position to the releasing position.

[0107] In other embodiments, the protrusion 125 of the second housing 120 may also directly act on the locking member 170. For example, the locking member 170 may be provided with an inclined abutment surface extending toward the second housing 120 and obliquely relative to the transverse and longitudinal directions at the same time, the inclined abutment surface being relatively far away from the second housing 120 on the locking position side of the locking member, and relatively close to the second housing 120 on the release position side. In this way, when the second housing 120 rotates from the first angular position to the second angular position, the protrusion 125 abuts against the inclined abutment surface, so that the locking member moves from the locking position to the release position. In such an embodiment, the slider 160 may be omitted, and the second elastic member 192 may be configured to bias the locking member 170 toward its locking position.

[0108] The engaging member 140 is inserted into the first housing 110 in a shape-matching manner, and can be partially inserted into the second housing 120 by moving in the lateral direction. More specifically, the engaging member 140 has an annular portion 141 and an engaging portion 142. The annular portion 141 is substantially perpendicular to the rotation axis of the first housing and the second housing, and is sleeved on the rotation axis. The engaging portion 142 extends radially outward from the periphery of the annular portion 141, and the shape of the engaging portion 142 corresponds to the accommodating groove 114 in the first housing 110 and the engaging groove 124 in the second housing 120. When the engaging member 140 is partially inserted into the second housing 120, the engaging member 140 locks the second housing 120 and the first housing 110 to prevent the two from rotating relative to each other, and at this time, the second rotating disk 121 is in the first angular position.

[0109] The first elastic member 191 is disposed between the engaging member 140 and the first housing 110 , and biases the engaging member 140 to be inserted into the second housing 120 .

[0110] The driving member 150 is accommodated in the second housing 120 and abuts against or is connected to the engaging member 140. The driving member 150 is arranged to be roughly disc-shaped and rotates along the same rotation axis as the first housing 110 and the second housing 120. The driving member 150 includes a driving member inclined surface 151 and a traction member second end connection portion 152. The driving member inclined surface 151 is arranged to be at least two, uniformly distributed along the circumferential direction at the driving member 150 and facing the second housing 120. The shape of the driving member inclined surface 151 corresponds to the shape of the second housing inclined surface 126. More specifically, the driving member inclined surface 151 can be an inclined surface extending along the circumference of the driving member 150 and gradually rising toward the second housing 120. The traction member second end connection portion 152 is arranged at a position outside the center of the disc-shaped portion of the driving member 150, which is arranged to be a protrusion, a card slot or any appropriate form, as long as the traction member 510 can be fixed to the driving member 150.

[0111] The driving member 150 can be driven to rotate around the rotation axis according to the operation of the user, and its rotation will drive the engaging member 140 to move in the lateral direction, so that the engaging member 140 is partially moved out of the first shell 110 and inserted into the second shell 120, or is separated from the second shell 120 and moved into the first shell 110. More specifically, when the driving member 150 is pulled and rotated by the traction member 510, the driving member inclined surface 151 and the second shell inclined surface 126 will abut against each other, thereby converting the rotational power into a lateral movement force, so that the driving member 150 moves toward the first shell 110. In this embodiment, the driving member 150 is arranged between the engaging member 140 and the second shell 120, and abuts against the engaging member 140, so that the engaging member 140 will be driven to move toward the first shell 110, thereby releasing the rotation of the second shell 120. In other embodiments, the driving member 150 may also be disposed between the engaging member 140 and the first housing 110 , and may be rotatably engaged with the engaging member 140 , and may also drive the engaging member 140 to move toward the first housing 110 .

[0112] In other embodiments, the driving member 150 can be driven in other ways. For example, a portion of the driving member 150 (referred to as the pull portion) can be exposed to the outside through a slot on the side wall of the first housing 110 or the second housing 120. The user can directly rotate the driving member 150 through the pull portion. In such an embodiment, the traction member 510 and the operating device 500 are unnecessary.

[0113] In other embodiments, other locking forms may be used between the first housing 110 and the second housing 120. For example, a latch may be provided on the outer circumference of the first housing 110, and a slot may be provided on the outer circumference of the second housing 120. The user may directly operate the latch to lock and unlock the rotation of the second housing 120. In such an embodiment, the engaging member 140, the driving member 150, the pulling member 510, and the operating device 500 are all unnecessary.

[0114] Now refer to FIG. 12A to FIG. 15B The operation of the locking structure 100 according to the present application will be described.

[0115] exist FIG. 12A to FIG. 12B In the state shown, the saddle is in the unfolded position, the engaging member 140 is inserted into the first shell 110 and the second shell 120 at the same time, and the locking member 170 is inserted into the fixing seat 180. Therefore, the second shell 120 (and the upper support tube 300) cannot rotate, and the saddle cannot be removed from the frame 400.

[0116] When the user wants to take off the seat, the user must first fold the seat. Specifically, the user pulls the traction member 510 through the operating device 500, and the traction member 510 drives the driving member 150 to rotate, so that the driving member 150 is oriented toward the first housing 110 ( Fig. 12BThe driving member 150 then drives the engaging member 140 to move into the first housing 110 and disengage from the second housing 120. At this time, the locking structure 100 becomes FIG. 12C to FIG. 12D Status shown.

[0117] Since the engaging member 140 is disengaged from the second housing 120, the second housing 120 can now rotate relative to the second housing 120. Therefore, the user rotates the second housing 120 toward the folded position, and the rotation process is as follows: FIG. 13A to FIG. 15B As the second housing 120 rotates, the protrusion 125 abuts against the slider 160 and drives the slider 160 toward the distal position (the lower side in the figure). As the slider 160 moves toward the distal position, since the locking member 170 is limited to lateral movement, the pin 173 of the locking member 170 moves leftward along the slide slot 162 of the slider 160, so that the locking member 170 moves from Figures 13A to 13B The locking position shown moves to FIG. 15A to FIG. 15B The released position shown in FIG. 4 is shown. At this moment, the vehicle seat is disengaged from the vehicle frame 400 to allow the user to remove the vehicle seat from the vehicle frame 400.

[0118] When the user wants to install the saddle onto the frame 400 , the user only needs to perform the above steps in reverse.

[0119] In summary, the present application proposes a locking structure that allows two relatively rotating parts to be detachably locked to another part. Moreover, the lock of the other part can only be released when the two parts are relatively rotated to a specific angle. The current situation is that the caregiver may not take the child away from the seat when the seat is switched, but directly separate the child from the frame together with the seat, which is a very dangerous behavior. The child stroller of the present application adopts the locking structure of the present application to connect the seat and the frame, forcing the user to fold the seat before removing the seat from the frame. That is, if the caregiver wants to change the direction of the seat, he must first take the child away, and then fold the seat before removing the seat. In this way, the caregiver's operation can be compulsorily regulated, the safety performance of the child stroller can be increased, and thus the dangerous operation of removing the child from the frame together with the seat can be avoided.

[0120] Since the present application can be implemented in various forms without departing from the spirit and essence of the present application, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be interpreted in the broadest scope within the scope defined by the claims. Therefore, all changes that fall within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A locking structure (100), characterized in that: include: A first housing (110); A second shell (120) capable of rotating around the first shell (110); A locking member (170) at least partially accommodated in the first housing (110) and movable between a locking position and a releasing position; a slider (160) capable of sliding between a proximal position close to the second housing (120) and a distal position away from the second housing (120), and engaged with the locking member (170); When the second housing (120) rotates from a first angular position to a second angular position relative to the first housing (110), the second housing (120) drives the slider (160) to move, so that the slider (160) drives the locking member (170) from the locking position to the releasing position.

2. The locking structure (100) according to claim 1, characterized in that: The slider (160) has two side walls and a containing space between the two side walls, and at least one side wall is provided with a slide groove (162) extending obliquely in both the vertical and horizontal directions; The locking member (170) is inserted into the accommodating space and is slidably connected to the sliding groove (162) via a pin (173), so that the vertical movement of the sliding block (160) is converted into the lateral movement of the locking member (170).

3. The locking structure (100) according to claim 1, characterized in that: The locking structure (100) further comprises a clamping member (140) and a driving member (150); the clamping member (140) is disposed between the first housing (110) and the second housing (120) in a manner that allows for transverse movement; The driving member (150) is configured to drive the engaging member (140) to disengage from the second shell (120) so as to allow the second shell (120) to rotate relative to the first shell (110).

4. The locking structure (100) according to claim 3, characterized in that: The driving member (150) is a disc-shaped member, and a driving inclined surface (151) is provided on its periphery, and a corresponding second shell inclined surface (126) is provided on the inner side of the second shell (120); When the driving member (150) rotates, the engaging member (140) is driven to move laterally through the engagement of the driving inclined surface (151) with the second shell inclined surface (126).

5. The locking structure (100) according to claim 4, characterized in that: The engaging member (140) is in the shape of a disk and is provided with a radially protruding engaging portion (142) in its circumferential direction. The inner side of the second shell (120) is provided with an engaging groove (124) that cooperates with the engaging portion (142).

6. The locking structure (100) according to claim 1, characterized in that: Also includes: A socket (130) fixed to the first housing (110) and extending outwardly, and releasably inserted into the fixing seat (180); The fixing seat (180) is provided with a socket groove (181) matching the shape of the socket (130), and the locking member (170) is locked by being inserted into the socket groove (181).

7. The locking structure (100) according to claim 6, characterized in that: It also includes a first elastic member (191), the first elastic member (191) being disposed between the first housing (110) and the engaging member (140) of the locking structure (100), biasing the engaging member (140) to be inserted into the second housing (120); and a second elastic member (192) disposed between the slider (160) and the socket (130) to bias the slider (160) toward a proximal position.

8. The locking structure (100) according to claim 1, characterized in that: The locking member (170) has a locking tongue (171), and an outer surface of the locking tongue (171) is provided with a locking member inclined surface (174). When the locking structure (100) is inserted into a fixing seat (180), the fixing seat (180) temporarily retracts the locking member (170) to a release position via the locking member inclined surface (174).

9. The locking structure (100) according to claim 1, characterized in that: The locking structure (100) further comprises a traction member (510), one end of which is connected to the driving member (150) and the other end of which extends to the outside of the locking structure (100); When the traction member (510) is pulled, it drives the driving member (150) to rotate, thereby unlocking the rotation of the second housing (120).

10. The locking structure (100) according to claim 1, characterized in that: The first housing (110) is fixed with a first rotating disk (111), and the second housing (120) is fixed with a second rotating disk (121), the first rotating disk (111) and the second rotating disk (121) are stacked along a rotating axis extending transversely and are relatively rotatable; A protrusion (125) is provided on the outer periphery of the second rotating disk (121); when the second rotating disk (121) rotates from a first angular position to a second angular position, the protrusion (125) acts on the slider (160) to drive the slider (160) to slide.

11. The locking structure (100) according to claim 1, characterized in that: The sliding movement of the slider (160) between the proximal position and the distal position is a vertical movement, and the movement of the locking member (170) between the locking position and the releasing position is a lateral movement.

12. A baby stroller, comprising a frame (400) and a seat, characterized in that: The vehicle seat is detachably mounted to the vehicle frame (400) by means of the locking structure (100) according to any one of claims 1 to 11; The first shell (110) is fixed to a lower support tube (200) of the vehicle seat, and the second shell (120) is fixed to an upper support tube (300) of the vehicle seat.

13. The baby carriage according to claim 12, characterized in that: When the vehicle seat moves from the unfolded position to the folded position, the second shell (120) can rotate to the second angular position relative to the first shell (110), and the locking member (170) releases the lock between the vehicle seat and the frame (400) to allow the vehicle seat to be separated from the frame (400).

14. The baby stroller according to claim 12, characterized in that: The vehicle seat also includes a backrest mounted on the upper support tube (300) and a seat mounted on the lower support tube (200); when the upper support tube (300) is rotated downward through the locking structure (100) to substantially overlap with the lower support tube (200), the vehicle seat is in a folded position.

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