Intermittent Mobility Device, Wheel Lock Structure, and Stroller

Abstract

To provide an intermittent mobility device, a wheel lock structure, and a stroller. [Solution] The intermittent movement device of the present application includes a housing, a drive member, a plurality of engagement teeth, and an operating member, the drive member is disposed in the housing and rotatable about a first axis, the plurality of engagement teeth are distributed circumferentially on the drive member based on the first axis, the operating member can perform reciprocating motion between an initial position and an operating position relative to the drive member about the first axis, when the operating member moves from the operating position to the initial position, the operating member moves back from the operating position to the initial position beyond one of the engagement teeth, and the drive member does not rotate together with the operating member. The present application further discloses a wheel lock structure and a stroller.

Description

[Technical field]

[0001] The present application relates to an intermittent mobility device, a wheel lock structure having said intermittent mobility device, and a stroller. [Background technology]

[0002] According to the prior art, the wheel locking mechanism of the stroller includes a wheel, an axle rotatably connected to the wheel, and a plurality of locking grooves distributed annularly on each wheel, and a parking pedal connected to the stroller frame is provided on one side of each wheel. When the pedal is pressed, the parking block connected to the pedal is inserted into one of the locking grooves, preventing the wheel from rotating. When unlocking is required, the user needs to hook the parking pedal with the instep of the foot and separate the parking block from the locking groove. This locking mechanism requires two actions to be moved up and down during operation, which is inconvenient to perform with the foot and is easy to damage or soil the shoes, and may expose the exposed instep of the user, especially when wearing shoes with exposed insteps.

[0003] Therefore, it is necessary to propose a new wheel lock structure that can reliably lock and unlock the wheel by stepping on the pedal in one direction. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to make it easier for babysitters to go shopping or carry things they need to go out, some strollers are equipped with storage crates to store luggage. However, due to limitations such as the connection method and spatial combination with the stroller frame, the existing storage crates on strollers are often inconvenient to use and provide a poor user experience. [Means for solving the problem]

[0005] The intermittent movement device of the present application includes a housing, a drive member, a plurality of engagement teeth, and an operating member, the drive member being disposed within the housing and rotatable about a first axis, the plurality of engagement teeth being distributed circumferentially on the drive member based on the first axis, the operating member being capable of reciprocating motion relative to the drive member between an initial position and an operating position about the first axis, and when the operating member moves from the operating position to the initial position, the operating member moves past one of the engagement teeth and returns from the operating position to the initial position, and the drive member does not rotate together with the operating member.

[0006] In one embodiment, the multiple engagement teeth can each rotate between an engagement position and an avoidance position relative to the drive member, and when the operating member moves from the initial position to the operating position, the operating member pushes one engagement tooth into the engagement position and rotates the drive member along a rotational direction via the engagement tooth, and when the operating member moves from the operating position to the initial position, the operating member moves beyond the next engagement tooth after the one engagement tooth in the rotational direction and returns from the operating position to the initial position, and the drive member does not rotate together with the operating member.

[0007] In one embodiment, each of the engagement teeth is capable of rotating relative to the drive member between the engagement position and the avoidance position about a second axis, the second axis being parallel to the first axis, or each of the engagement teeth is linearly movable between the engagement position and the avoidance position along a direction perpendicular to the first axis.

[0008] In one embodiment, each of the engagement teeth includes a front surface and a rear surface, the front surface and the rear surface forming an angle with each other, the operating member includes a pressing portion that applies a pressing action to one of the engagement teeth, and when the operating member moves from the initial position to the operating position, the pressing portion of the operating member presses the front surface of one of the engagement teeth so that the one of the engagement teeth is in the engagement position, and when the operating member moves from the operating position to the initial position, the pressing portion goes over the next engagement tooth and presses the rear surface of the next engagement tooth to place the next engagement tooth in the avoidance position.

[0009] In one embodiment, the intermittent movement device further includes a plurality of engagement tooth elastic members disposed between the plurality of engagement teeth and the drive member and biasing the engagement teeth to the engagement position, in which the engagement teeth protrude radially relative to the first axis further than in the avoidance position.

[0010] In one embodiment, the engaging tooth resilient member is a compression spring, and each of the engaging teeth includes an engaging tooth resilient member receiving portion that at least partially receives one end of each of the engaging tooth resilient members.

[0011] In one embodiment, the drive member includes a plurality of engagement tooth grooves, the plurality of engagement tooth grooves being concavely formed from one side of the drive member, distributed circumferentially based on the first axis, and accommodating the plurality of engagement teeth respectively, each of the engagement tooth grooves including an engagement limiting portion, an avoidance limiting portion, and an engagement tooth elastic member abutment portion, the engagement limiting portion preventing the engagement tooth from rotating beyond the engagement position relative to the drive member when one engagement tooth is in its engagement position, the avoidance limiting portion preventing the engagement tooth from rotating beyond the avoidance position relative to the drive member when one engagement tooth is in its avoidance position, and the engagement tooth elastic member abutment portion being positioned adjacent to the engagement limiting portion for the other end of the engagement tooth elastic member to abut against.

[0012] In one embodiment, the engagement limiting portion, the avoidance limiting portion and the engagement tooth elastic member abutment portion are all axially extending walls of the engagement tooth groove, the engagement limiting portion radially faces both the avoidance limiting portion and the engagement tooth elastic member abutment portion, the engagement limiting portion is a radial outer wall of the engagement tooth groove, and the avoidance limiting portion and the engagement tooth elastic member abutment portion are each radial inner walls of the engagement tooth groove.

[0013] In one embodiment, the stroke of each reciprocating movement of the operating member is equal to or greater than the distance between two adjacent engagement teeth.

[0014] In one embodiment, the operating member further includes an operating member main body, which is arranged coaxially with the drive member along the first axis, the multiple engagement teeth are arranged on a side of the drive member facing the operating member main body, and a pushing portion is located on a side of the operating member main body facing the drive member, and when the operating member moves from the initial position to the operating position, the pushing portion protrudes in the axial direction and abuts against one of the engagement teeth.

[0015] In one embodiment, the housing includes a disk surface facing the operating member main body, and an insertion slot extending circumferentially is formed on the disk surface, the operating member further includes an insertion post extending axially inside the housing, and when the operating member reciprocates relative to the drive member, the insertion post inserts into the insertion slot and slides along the insertion slot, and the insertion slot limits the stroke of movement of the operating member between the operating position and the initial position, and the intermittent movement device further includes an operating elastic member, which is arranged in the insertion slot and abuts between the end wall of the insertion slot and the insertion post, and urges the operating member to the initial position.

[0016] The wheel lock structure of the present application includes the intermittent movement device, a wheel, and a pin, the wheel is rotatably connected to the housing around the first axis, a parking hole is provided on the side of the wheel facing the housing, the operating member and the wheel are located on the opposite side of the drive member, the pin is disposed on the housing and located between the drive member and the wheel, and can move axially between a parked position and a non-parked position, in the parked position, the pin is inserted into the parking hole to prevent rotation of the wheel, and in the non-parked position, the pin is removed from the parking hole to allow rotation of the wheel, the drive member of the intermittent movement device is rotatably connected to the housing and abuts against one end of the pin, the drive member has a parking portion protruding from the wheel and a non-parking portion recessed away from the wheel on the side abutting against the pin, and when the drive member rotates, one of the parking portions or one of the non-parking portions abuts against the pin, and the pin moves to the parked position or the non-parked position.

[0017] In one embodiment, the pin has a first indication portion and a second indication portion, the first indication portion and the second indication portion are arranged along an axis and have different visual effects, and an indication window is provided on the peripheral wall of the housing, and when the pin is in the non-parked position, the first indication portion is exposed to the outside corresponding to the position of the indication window, and when the pin is in the parked position, the second indication portion is exposed to the outside corresponding to the position of the indication window.

[0018] In one embodiment, a pin resilient member is disposed between the pin and the housing, the pin resilient member biasing the pin toward the non-park position.

[0019] In one embodiment, the parking portions and the non-parking portions are alternately distributed around the axis of the drive member.

[0020] In one embodiment, the wheel lock structure further includes the other wheel, the other pin, the other drive member, and a cable, the other wheel being arranged in a pair with the wheel and rotatably connected to the other housing about the first axis, the other wheel having the other parking hole on a side facing the other housing, the other pin being provided in the other housing and being axially movable between a parked position and a non-parked position, the other pin being inserted into the other parking hole to prevent the other wheel from rotating, and the other pin being removed from the other parking hole to allow the other wheel to rotate, the other drive member being rotatably connected to the other housing, one end of the other pin being inserted into the other parking hole to prevent the other wheel from rotating, and the other drive member being rotatably connected to the other housing, the other driving member has an other parking portion protruding toward the other wheel and an other non-parking portion recessed away from the other wheel on the side abutting against the other pin, and when the other driving member rotates, the other parking portion or the other non-parking portion abuts against the other pin, and the other pin is moved to the other parking position or the other non-parking position, the cable has one end connected to a cable second end connection portion provided on the outer periphery of the other driving member, and the other end is connected to the driving member via a link mechanism, and when one of the parking portions of the driving members abuts against the pin and enters its parking position, the driving member moves the other driving member via the link mechanism and the cable, whereby the other driving member rotates toward the other parking portion and abuts against the other pin to enter the parking position.

[0021] In one embodiment, the link mechanism includes a link slider and a link sheet, the link slider is disposed in the housing and can slide relative to the wheel in a direction perpendicular to the first axis, the other end of the cable is connected to a cable first end connection portion of the link slider, the link sheet is disposed in the housing and can slide relative to the wheel in a direction parallel to the first axis, the link sheet and the link slider engage with each other via an inclined surface, and the link mechanism is configured such that when one parking section abuts against the pin, the other parking section abuts against the link sheet and the link sheet slides in a direction parallel to the first axis, the link sheet slides the link slider vertically in the axial direction due to the inclined surface engagement, and the link slider rotates the other drive member via the cable.

[0022] The stroller of the present application includes a stroller frame, a stroller seat standing on the stroller frame, front and rear wheels arranged under the stroller frame, and the above-mentioned wheel lock structure, wherein the wheels are the front wheels or the rear wheels.

[0023] The present application provides a stroller with a storage crate that is easy to use and provides a good user experience.

[0024] One aspect of the present application provides a stroller, comprising a stroller frame, a storage crate, and a locking mechanism, the storage crate being removably disposed on the stroller frame, the storage crate comprising a storage basket and a handlebar, the handlebar being rotatably connected to the storage basket, the handlebar being capable of rotating to a first rotational position for placing the locking mechanism in a locked state in which the storage crate and the stroller frame are locked relative to one another, and the handlebar being capable of rotating to a second rotational position for placing the locking mechanism in an unlocked state in which the storage crate and the stroller frame are unlocked relative to one another.

[0025] In such a stroller, the locking mechanism disposed between the stroller frame and the storage crate allows the locking and unlocking between the storage crate and the stroller frame to be realized by simply rotating the handlebar with one hand, which is convenient for operation. For example, a position where the handlebar is arranged horizontally can be defined as a first rotation position, and a position where the handlebar is arranged vertically can be defined as a second rotation position. When it is necessary to separate the storage crate from the stroller frame, the locking of the storage crate from the stroller frame can be released and the storage crate can be lifted from the stroller frame by simply rotating the handlebar from a horizontal position to a vertical position with one hand. In addition, there is no need to dispose an additional operating member between the stroller frame and the storage crate to realize the unlocking between the storage crate and the stroller frame, which simplifies the structure and saves costs.

[0026] In one embodiment, the locking mechanism includes an actuating member, a first locking portion, and a second locking portion, the actuating member being fixed to the handlebar, the first locking portion being provided on the storage crate, and the second locking portion being provided on the stroller frame, and the handlebar rotating to rotate the actuating member, whereby the actuating member drives the first locking portion and the second locking portion to lock or unlock each other.

[0027] In one embodiment, the actuating member includes an inclined push rib, the first locking portion is an engagement block and the second locking portion is an engagement hole, and when the handlebar is rotated to the second rotation position, the handlebar rotates the actuating member, thereby driving the push rib to disengage the engagement block from the engagement hole.

[0028] In one embodiment, the locking mechanism further includes a pushing block fixedly connected to the engagement block, the pushing block being capable of abutting the push rib.

[0029] In one embodiment, the locking mechanism further includes a first reset member, and the first reset member constantly urges the engagement block to move in a direction in which the engagement block engages with the engagement hole.

[0030] In one embodiment, the locking mechanism further includes a fixed sheet provided on the stroller frame and a connecting sheet provided on the storage basket, the engagement hole being provided in the fixed sheet and the engagement block being movably provided on the connecting sheet.

[0031] In one embodiment, said stationary seat comprises a cooperating bulge and said connecting seat comprises a cooperating slot which mates with said cooperating bulge.

[0032] In one embodiment, the locking mechanism further includes a first reset member and a connection cover, the first reset member is located between the connection cover and the connection sheet, the connection sheet has an accommodating hole, both ends of the first reset member abut against the connection cover and the engagement block, respectively, and the engagement block is movably arranged in the accommodating hole.

[0033] In one embodiment, the locking mechanism further includes a positioning member, the positioning member fixedly connected to the connection sheet, the actuating member rotatably connected to the positioning member, and the actuating member capable of being fixed in a plurality of positions relative to the positioning member.

[0034] In one embodiment, the positioning member comprises at least one connection hole, and the connection sheet comprises at least one connection arm cooperating with the connection hole and fixable therewith.

[0035] In one embodiment, the positioning member includes at least one first positioning portion, and the connecting sheet includes a plurality of second positioning portions in a circumferential direction, and the plurality of second positioning portions are capable of cooperating with the first positioning portion along the circumferential direction, or the connecting sheet includes at least one first positioning portion, and the positioning member includes a plurality of second positioning portions that are capable of cooperating with the first positioning portion along the circumferential direction.

[0036] In one embodiment, the positioning member includes at least one elastic arm, the elastic arm includes at least one positioning protrusion, and the connecting sheet includes a plurality of positioning recesses in the circumferential direction that can cooperate with the positioning protrusions.

[0037] In one embodiment, the stroller frame includes a handrail support bar, and the fixed seat is slidably mounted on the handrail support bar.

[0038] In one embodiment, the storage basket includes a connecting frame and a cover fabric sleeved onto the connecting frame.

[0039] In one embodiment, the connection frame includes a first connection tube and a second connection tube, two locking mechanisms are located on the left and right sides of the stroller frame, respectively, and the connection pins are arranged on both sides of the connection seats of each locking mechanism and are inserted into one end of the first connection tube and one end of the second connection tube to connect them.

[0040] Another aspect provides a stroller, comprising a stroller frame including a front leg support bar, and a storage crate provided on the front leg support bar.

[0041] In this stroller, the storage crate is installed on the front leg support bar of the stroller frame, which is convenient for the spatial structure design of the stroller. Especially for strollers with two seats, the storage crate is installed on the front leg support bar, which can avoid interference between the lower seat of the stroller and the storage crate, and can realize the coexistence effect of the storage crate and the lower seat.

[0042] In one embodiment, the storage crate includes a connection frame and a cover fabric sleeved onto the connection frame, the connection frame being mounted to the front foot support bar.

[0043] In one embodiment, the connection frame is rotatably connected to the forefoot support bar.

[0044] In one embodiment, the stroller further includes a first engagement sheet and a second engagement sheet, the first engagement sheet being provided on the front leg support bar and the second engagement sheet being provided on the connecting frame.

[0045] In one embodiment, one end of the first engagement sheet is rotatably connected to the second engagement sheet, and the other end of the first engagement sheet is rotatably connected to the front foot support bar.

[0046] In one embodiment, the first engagement seat includes a turntable pivotally attached to the front foot support bar, the turntable having a plurality of first cooperating parts in a circumferential direction, and the stroller further includes a second cooperating part movably mounted on the front foot support bar, the second cooperating part being capable of cooperating with any of the first cooperating parts.

[0047] In one embodiment, the first cooperating portion is a cooperating slot provided in the turntable and the second cooperating portion is a cooperating pin movably provided on the front foot support bar.

[0048] In one embodiment, the stroller further includes a second reset member, the second reset member constantly biasing the cooperating pin to move in a direction proximal to the cooperating slot.

[0049] In one embodiment, the first engagement sheet and the second engagement sheet are detachably connected.

[0050] In one embodiment, the stroller frame further includes a first sitting assembly, a second sitting assembly, two handrail support bars, and two rear foot support bars, the first sitting assembly being disposed between the two handrail support bars and the second sitting assembly being disposed between the two rear foot support bars. [Brief description of the drawings]

[0051] [Figure 1] 1 is a perspective view showing a wheel lock structure according to the present application, in which the operating member is not pressed down and the wheel is in an unlocked state. [Diagram 2] 1 is a perspective view showing a wheel lock structure in which the operating member is pressed down and the wheel is in a locked state; [Diagram 3] FIG. 2 is a perspective view of the wheel lock structure with the operating member removed to clearly show the internal mechanism including the drive member and engagement teeth. [Figure 4] FIG. 4 is a partial enlarged view of a block in FIG. 3. [Diagram 5] FIG. 2 is a perspective view of a wheel lock arrangement with one wheel removed to clearly show the housing, operating member and pin, and with a portion of the housing of the other wheel removed to clearly show the drive member of the other wheel. [Figure 6A] 6 is a partial enlarged view of the left and right blocks in FIG. 5. [Figure 6B] 6 is a partial enlarged view of the left and right blocks in FIG. 5. [Figure 7] FIG. 2 is an exploded perspective view of the stroller frame, wheels, and some of the component parts. [Figure 8] FIG. 8 is a partial enlarged view of a block in FIG. 7. [Figure 9] FIG. 2 is a partially exploded perspective view of the stroller frame, wheels, and components. [Figure 10] FIG. 10 is a partial enlarged view of a block in FIG. [Figure 11A] 4A to 4C are perspective views of the drive member from different angles. [Figure 11B] 4A to 4C are perspective views of the drive member from different angles. [Figure 11C] 4A to 4C are perspective views of the drive member from different angles. [Figure 12A] 11A-11C are perspective views of the engagement teeth from different angles. [Figure 12B] 11A-11C are perspective views of the engagement teeth from different angles. [Figure 13A] 11A and 11B are perspective views of the operating member from different angles. [Figure 13B] 11A and 11B are perspective views of the operating member from different angles. [Figure 14A] 11A-11C are perspective views of the pin and pin resilient member assembled together from different angles. [Figure 14B] 11A-11C are perspective views of the pin and pin resilient member assembled together from different angles. [Figure 15] 4A to 4C are cross-sectional views showing an interaction process between an operating member, a driving member and an engagement tooth. [Figure 16] 4A to 4C are cross-sectional views showing an interaction process between an operating member, a driving member and an engagement tooth. [Figure 17] 4A to 4C are cross-sectional views showing an interaction process between an operating member, a driving member and an engagement tooth. [Figure 18] FIG. 4 is a cross-sectional view showing the abutment relationship between a driving member and a pin. [Figure 19] FIG. 19 is a partial enlarged view of a block in FIG. 18. [Figure 20] 1 is a perspective view of a wheel lock structure from a different angle, with the cable shown diagrammatically in dotted lines; [Figure 21] 1 is a perspective view of a wheel lock structure from a different angle, with the cable shown diagrammatically in dotted lines; [Figure 22] FIG. 2 is a perspective view of the wheel lock arrangement with the cable shown diagrammatically in dotted lines and with a portion of the other housing removed to show the other drive member; [Figure 23] FIG. 13 is a perspective view showing the other wheel, the other housing and the other drive member. [Figure 24A] 13A-13C are two perspective views showing the other drive member and the other pin from different angles. [Figure 24B] 13A-13C are two perspective views showing the other drive member and the other pin from different angles. [Diagram 25] A perspective view showing the drive member, the pin, the link slider, the link seat and a portion of the housing. [Figure 26A] 26A and 26B are schematic diagrams showing the operation of the linkage mechanism with the pin and the other pin in their respective unparked positions and with the pin and the other pin in their respective parked positions. [Figure 26B] 26A and 26B are schematic diagrams showing the operation of the linkage mechanism with the pin and the other pin in their respective unparked positions and with the pin and the other pin in their respective parked positions. [Figure 27] 1 is a cross-sectional view of a wheel having an operating member, and a partial cross-sectional view of a wheel without an operating member after being removed; FIG. [Figure 28] FIG. 28 is a partial enlarged view of a block in FIG. 27. [Figure 29] A diagram showing the link slider and link seat, with the link slider in a proximal position. [Diagram 30] FIG. 30 is a partial enlarged view of a block in FIG. 29. [Diagram 31] A diagram showing the link slider and link seat, with the link slider in a distal position. [Diagram 32] FIG. 32 is a partial enlarged view of a block in FIG. 31. [Diagram 33] 1 is a partial structural schematic diagram of a stroller according to an embodiment of the present disclosure, with the handlebar in a first rotation position. [Diagram 34]1 is a partial structural schematic diagram of a stroller according to an embodiment of the present disclosure, with the handlebar in a second rotation position. [Diagram 35] FIG. 35 is a structural schematic diagram of a portion of FIG. 34. [Diagram 36] FIG. 35 is a structural schematic diagram of the other portion of FIG. 34. [Figure 37] FIG. 37 is an exploded perspective view of FIG. 36. [Figure 38] FIG. 38 is an enlarged view of the actuation member of FIG. 37. [Figure 39] FIG. 38 is an enlarged view of the pressing block and the engagement block in FIG. 37. [Diagram 40] 38 is an enlarged view of the positioning member in FIG. 37. FIG. [Diagram 41] FIG. 34 is a partial cross-sectional view of FIG. [Diagram 42] FIG. 42 is an enlarged view of “A” in FIG. 41. [Diagram 43] FIG. 35 is a partial cross-sectional view of FIG. [Diagram 44] FIG. 44 is an enlarged view of “B” in FIG. [Diagram 45] FIG. 34 is a partial exploded view of FIG. [Figure 46] FIG. 46 is an enlarged view of “C” in FIG. 45. [Figure 47] FIG. 35 is a partial exploded view of FIG. [Figure 48] FIG. 46 is an enlarged view of “D” in FIG. 45. [Figure 49] 38 is an enlarged view of the connection sheet of FIG. 37 viewed from another angle. [Figure 50] FIG. 13 is a structural schematic diagram of a stroller according to another embodiment of the present disclosure, in which the second sitting assembly is a child seat and the storage crate is in a fully open state. [Figure 51] FIG. 51 is a structural schematic diagram of a stroller according to another embodiment of the present disclosure, in which the second seat assembly is a child seat and the storage crate is in a fully folded state. [Figure 52] FIG. 11 is a structural schematic diagram of a stroller according to another embodiment of the present disclosure, in which the second seat assembly is a child seat and the storage crate is removed. [Diagram 53] FIG. 51 is a side view of FIG. [Figure 54] FIG. 52 is a side view of FIG. 51. [Figure 55] FIG. 53 is a side view of FIG. 52. [Figure 56] FIG. 13 is a structural schematic diagram of a stroller according to yet another embodiment of the present disclosure, in which the second sitting assembly is a sleep box and the storage crate is in a fully open state. [Figure 57] 13 is a structural schematic diagram of a stroller according to yet another embodiment of the present disclosure, in which the second sitting assembly is a sleep box and the storage crate is removed. FIG. [Figure 58] FIG. 53 is a partially enlarged view of FIG. 52. [Figure 59] FIG. 59 is an enlarged view at "E" in FIG. 58, with the first engagement sheet in a state in which the contact pin is approximately vertical. [Figure 60] FIG. 60 is a structural schematic diagram of the structure shown in FIG. 59, in which the first engagement sheet is in a state in which the connection pin is inclined downward. [Figure 61] 13 is a structural schematic diagram of a first engagement sheet in a stroller according to a further embodiment. FIG. [Figure 62] FIG. 62 is a structural schematic diagram of the first engagement sheet shown in FIG. 61 in a state in which the connection pin is substantially vertical. [Figure 63] 62 is a schematic structural diagram of the first engagement sheet shown in FIG. 61 in a state in which the connection pin is inclined downward. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0052] Although the present application is illustrated and described herein with reference to specific embodiments, the present application should not be limited to the details shown, indeed many changes may be made in these details within the scope and range of equivalents of the claims without departing from the present application.

[0053] Directional descriptions in this specification, such as "front", "back", "upper" and "lower", are merely for the convenience of understanding. The present application is in no way limited to these directions, and can be adjusted according to actual circumstances. Although the present application is described with reference to exemplary embodiments, the terms used are illustrative and not limiting.

[0054] It should be noted that when an element is said to be "fixed" to another element, the element may be directly connected to the other element, or there may be intervening elements between them. When an element is said to be "connected" to another element, it may be directly connected to the other element, or there may be intervening elements between them. As used herein, the terms "vertical," "horizontal," "left," "right," and similar terms are for illustrative purposes only and do not imply the only implementation.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present disclosure. The terms used in the description of the present disclosure herein are intended to describe specific embodiments and are not intended to limit the present disclosure. Furthermore, the term "and / or" used herein includes any combination of one or more associated items.

[0056] Next, the stroller frame 1300 of the stroller according to the present application will be described in outline with reference to Figs. 1 and 2. Only the stroller frame 1300 and two wheels installed under the stroller frame 1300 are shown. Other parts of the stroller, such as the stroller seat and armrests, are well known, so illustration and description thereof will be omitted. The wheels of the present application can be two front wheels in parallel or two rear wheels in parallel, preferably the rear wheels, of the stroller, to facilitate the user's operation. For distinction, the two wheels are called the wheel 1120 and the other wheel 1220, respectively, and can correspond to the left wheel and the right wheel, respectively, or can be interchangeable.

[0057] In the wheel lock structure according to the present application, an operating member 1160 is disposed on the wheel 1120. The non-depressed state of the operating member 1160 is shown in FIG. 1, and the depressed state of the operating member 1160 is shown in FIG. 2. When a user presses (e.g., steps on) the operating member 1160 and releases it, the operating member 1160 automatically returns to the non-depressed state, i.e., one reciprocating motion of the operating member 1160 can be completed. Each reciprocating motion of the operating member 1160 switches the wheel lock structure between the parked state and the non-parked state. In this way, the user can complete the switching between the parked state and the non-parked state without lifting the operating member 1160 upward with the instep of the foot.

[0058] With reference to Figures 1 and 2, the wheel lock structure of the present application will be further described with reference to Figures 3 and 4. The wheel lock structure includes a wheel 1120, a pin 1130, and an intermittent motion device. Here, the intermittent motion device includes a housing 1110, an operating member 1160, a driving member 1140, and an engagement tooth 1150. The intermittent motion device is installed inside the wheel 1120, and the pin 1130 is installed between the wheel 1120 and the intermittent motion device.

[0059] In this embodiment, the axis of rotation of the drive member 1140 and the axis of rotation of the wheel 1120 are the same as the first axis 1141, which can simplify the manufacturing process. However, this is not necessary, and on the contrary, the axis of rotation of the drive member 1140 can be offset from the first axis 1141, for example some other axis parallel to the first axis 1141.

[0060] The pin 1130 is provided with a first indicator 1134 and a second indicator 1135 arranged along an axis having different visual effects (as shown more clearly in FIGS. 14A and 14B). An indicator window 1111 is provided on the peripheral wall of the housing 1110. When the pin 1130 is in the non-parked position, the first indicator 1134 is exposed to the outside corresponding to the position of the indicator window 1111, and when the pin 1130 is in the parked position, the second indicator 1135 is exposed to the inside corresponding to the state of the indicator window 1111. For example, the first indicator 1134 may be green and the second indicator 1135 may be red.

[0061] 5-6B, the wheel lock structure is shown from another angle. FIG. 6A shows the other housing 1210 and the other drive member 1240, which will be described below, along with the link mechanism. FIG. 6B shows one side of the housing 1110 facing the wheel 1120 with the wheel 1120 removed to clearly show the housing 1110, the operating member 1160, and the pin 1130. It can be seen that the pin 1130 is joined to the wheel 1120 by passing through a pin hole 1113 in the housing 1110, and moves axially in the pin hole 1113, without rotating with the operating member 1160 or the drive member 1140 (because the housing 1110 does not rotate).

[0062] The housing 1110 is generally cylindrical with one open end, includes a disk surface facing the operating member body 1161, and has one or more insertion slots 1112 extending circumferentially formed on the disk surface. The operating member 1160 includes one or more insertion posts 1164, each of which extends axially inside the housing 1110. The insertion posts 1164 are inserted into the insertion slots 1112 and slide along the insertion slots 1112 when the operating member 1160 reciprocates relative to the drive member 1140. The insertion slots 1112 limit the movement stroke of the operating member 1160 between the operating position and the initial position. The intermittent motion device further includes one or more operating elastic members 1192. The operating elastic member 1192 is provided in the corresponding insertion slot 1112 and abuts between the end wall of the insertion slot 1112 and the corresponding insertion post 1164, biasing the operating member 1160 to the initial position (ie, the non-pressed position shown in FIG. 1).

[0063] In this embodiment, the housing 1110 is provided with three insertion slots 1112, and the operating member 1160 is provided with three corresponding insertion posts 1164. The three insertion posts 1164 are inserted into the three insertion slots 1112, respectively, and the three operating elastic members 1192 abut between the three insertion slots 1112 and the three insertion posts 1164, respectively. Such an arrangement can provide more uniform elasticity to the operating member 1160. However, the application is not limited thereto, and in other embodiments, more or fewer insertion slots 1112, insertion posts 1164, and operating elastic members 1192 can be arranged as long as the stroke of the operating member 1160 can be satisfied. In addition, the number of operating elastic members 1192 does not necessarily correspond to the number of insertion slots 1112, i.e., it is not necessary to provide an operating elastic member 1190 for each insertion slot 1112.

[0064] With reference to Figs. 7 to 10, the assembly relationship of the wheel lock structure according to the present application will be described below.

[0065] The wheel 1120 is rotatably connected to the housing 1110 around a first axis 1141, and the wheel 1120 is provided with a parking hole 1121 and a wheel axle 1122 on the side facing the housing 1110. More specifically, the wheel axle 1122 is rotatably inserted into a wheel axle hole 1114 of the housing 1110. The operating member 1160 and the wheel 1120 are located on two axial sides of the driving member 1140. The pin 1130 is disposed in a pin hole 1113 of the housing 1110 and can be moved between the driving member 1140 and the wheel 1120 in the axial direction between a parked position and a non-parked position. In the parked position, the pin 1130 is inserted into the parking hole 1121 to prevent the wheel 1120 from rotating, and in the non-parked position, the pin 1130 is removed from the parking hole 1121 to allow the wheel 1120 to rotate. The driving member 1140 of the intermittent motion device is rotatably connected to the housing 1110 and always abuts against one end of the pin 1130. The driving member 1140 is provided with a parking portion 1145 that protrudes toward the wheel 1120, a non-parking portion 1146 that is recessed away from the wheel 1120, and a driving slope 1147 that is located between the parking portion 1144 and the non-parking portion 1141 that are located on the side that abuts against the pin 1130 (FIGS. 11A and 11B). When the driving member 1140 rotates, the parking portion 1145 or the non-parking portion 1146 abuts against the pin 1130, and the pin 1130 moves to the parking position or the non-parking position.

[0066] The driving member 1140 is disposed in the housing 1110 and is rotatable around a first shaft 1141. A plurality of engagement teeth 1150 are uniformly distributed around the circumference based on the first shaft 1141 and are rotatably connected to the driving member 1140 (see FIG. 4 and FIG. 10). As shown in FIG. 11A, the driving member 1140 is provided with a corresponding number of engagement teeth shafts 1144 on the side closer to the engagement teeth 1150 in correspondence with the engagement teeth 1150. The engagement teeth 1150 are sleeved on the corresponding engagement teeth shafts 1144 and can rotate between an engagement position (pressed position) and an avoidance position (non-pressed position) with respect to the driving member 1140. The operating member 1160 can perform reciprocating motion between an initial position (non-pressed position) and an operating position (pressed position) with respect to the driving member 1140, centering on the first shaft 1141.

[0067] 8-10 also show the location of several engagement tooth resilient members 1193. Although only two engagement tooth resilient members 1193 are shown, each engagement tooth 1150 is provided with a respective engagement tooth resilient member 1193.

[0068] FIG. 10 also shows a link slider 1170 and a link sheet 1180, the link device including the link slider 1170 and the link sheet 118a being described below.

[0069] 11A and 11B, the structure of the driving member 1140 will be described in detail. The driving member 1140 is substantially disk-shaped and includes a driving member shaft hole 1142, an engagement tooth groove 1143, and an engagement tooth shaft 1144 on the side facing the operating member 1160, and includes a parking portion 1145 and a non-parking portion 1146 on the side facing the wheel 1120.

[0070] The drive member shaft hole 1142 is located on the first shaft 1141 and is disposed in the housing 1110 such that the drive member 1140 can rotate about the first shaft 1141 .

[0071] The engagement tooth grooves 1143 are formed concavely from one side surface of the driving member 1140 and are uniformly distributed in the circumferential direction based on the first axis 1141 to accommodate a plurality of engagement teeth 1150. Each engagement tooth groove 1143 includes an engagement limiting portion 1143a, an avoidance limiting portion 1143b, and an engagement tooth elastic member abutting portion 1143c. When the engagement tooth 1150 is in its engagement position, the engagement limiting portion 1143a prevents the engagement tooth 1150 from further rotating beyond the engagement position relative to the driving member 1140. When the engagement tooth 1150 is in its avoidance position, the avoidance limiting portion 1143b prevents the engagement tooth 1150 from further rotating beyond the avoidance position relative to the driving member 1140. The engagement tooth elastic member abutting portion 1143c is disposed adjacent to the engagement limiting portion 1143a so as to abut against one end of the engagement tooth elastic member 1193.

[0072] In this embodiment, six engagement tooth slots 1143 are provided. However, in other embodiments, more or less engagement tooth slots 1143 may be provided, depending on the number of engagement teeth 1150.

[0073] In this embodiment, the engagement limiting portion 1143a, the avoidance limiting portion 1143b, and the engagement tooth elastic member abutting portion 1143c are all axially extending walls of the engagement tooth groove 1143, and the engagement limiting portion 1141a faces the avoidance limiting portion 1141b and the engagement tooth elastic member abutting portion 1143c in the radial direction. Here, the engagement limiting portion 1143a is the radial outer wall of the engagement tooth groove 1143, and the avoidance limiting portion 1143b and the engagement tooth elastic member abutting portion 1143c are the radial inner walls of the engagement tooth groove 1143.

[0074] More specifically, the engagement limiting portion 1143a is adjacent to the outer periphery of the driving member 1140, and the outer surface of the engagement limiting portion 1141a is flush with the outer periphery of the driving member 1140. A gap between two adjacent engagement limiting portions 1143a allows one engagement tooth 1150 to protrude radially outward from the outer periphery of the driving member 1140. The avoidance limiting portion 1143b is adjacent to the driving member shaft hole 1142, and the engagement tooth shaft 1144 is located between the engagement limiting portion 1143a and the avoidance limiting portion 1141b. In one embodiment, the engagement limiting portion 1143a and the avoidance limiting portion 1143b are formed in a circular arc shape facing each other, and the engagement tooth shaft 1144 is located at the center of curvature of the engagement limiting portion 1141a and the avoidance limiting portion 1143b.

[0075] On the side facing the wheel 1120, the parking portion 1145 of the driving member 1140 protrudes toward the wheel 1120, and the non-parking portion 1146 is recessed away from the wheel 1120. The parking portion 1145 and the non-parking portion 1146 are both fan-shaped surfaces approximately perpendicular to the first axis 1141. The circumferential extension angle of the parking portion 1145 is greater than the extension angle of the non-parking portion 1146. One end of the non-parking portion 1146 is connected to the parking portion 1145 via a relatively steep driving slope 1147, and the other end is connected to the other parking portion 1145 via a relatively gentle slope.

[0076] The multiple parking portions 1145 and the multiple non-parking portions 1146 are uniformly and alternately distributed around the axis of the driving member 1140. As a result, the position corresponding to the pin 1130 switches from one of the parking portions 1145 to one of the non-parking portions 1146, or from one of the non-parking portions 1146 to one of the parking portions 1145, every time the driving member 1140 rotates at the engagement pitch.

[0077] The specific structure of the engagement teeth 1150 will be described with reference to FIGS. 12A and 12B.

[0078] The engaging tooth elastic member 1193 may be a compression spring. Each engaging tooth 1150 includes an engaging tooth shaft hole 1153, a front surface 1151, a rear surface 1152, and an engaging tooth elastic member receiving portion 1154. The engaging tooth shaft hole 1153 is located on a second axis 1155 parallel to the first axis 1141 and is sleeved on one engaging tooth shaft 1144 of the driving member 1140, allowing the engaging tooth 1150 to rotate between an engaging position and an avoiding position around the corresponding second axis 1155 relative to the driving member 1140. At the free end of the corresponding engaging tooth 1150, the front surface 1151 and the rear surface 1152 both extend axially and form an angle therebetween, which is an acute angle in this embodiment. The engaging tooth elastic member receiving portion 1154 is provided near the engaging tooth shaft hole 1153. Both ends of each of the engaging teeth elastic members 1193 (FIG. 10) are in contact with the engaging teeth elastic member accommodating portion 1154 and the engaging teeth elastic member abutting portion 1143c, respectively.

[0079] 13A and 13B, a specific configuration of the operating member 1160 will be described.

[0080] The operating member 1160 includes an operating member body 1161, a pedal 1162, a pushing portion 1163, and an insertion post 1164. The operating member body 1161 is substantially disk-shaped and is arranged coaxially with the driving member 1140 along a first axis 1141. The engagement teeth 1150 are provided on the side of the driving member 1140 facing the operating member body 1161. The pushing portion 1163 is provided on the side of the operating member body 1161 facing the driving member 1140, and protrudes in the axial direction. The pushing portion 1163 is arranged to abut and press one of the engagement teeth 1150 when the operating member 1160 moves from the initial position to the operating position.

[0081] A specific structure of the pin 1130 will be described below with reference to FIGS. 14A and 14B.

[0082] The pin 1130 includes a pin insertion portion 1131, a pin abutment portion 1132, a pin elastic member accommodating portion 1133, a first indicator portion 1134, and a second indicator portion 1135. The pin 1130 is generally cylindrical, and the pin insertion portion 1131 and the pin abutment portion 1132 are located at opposite ends of the cylindrical pin 1130, i.e., the pin insertion portion 1311 is located at one end facing the wheel 1120, and the pin abutment portion 1132 is located at the other end facing the drive member 1140. The pin elastic member accommodating portion 1133 is arranged as a cylindrical hollow internal space and is open to the pin insertion portion 1131. The first indicator portion 1134 and the second indicator portion 1135 extend outward from one side of the cylinder. Here, the first indication portion 1134 is adjacent to the pin insertion portion 1131, and the second indication portion 1135 is adjacent to the pin abutment portion 1132. As described above, the first indication portion 1134 and the second indication portion 1135 can have different visual effects, such as different colors. The pin elastic member 1194 is sleeved in the pin insertion portion 1131 and at least partially accommodated in the pin elastic member accommodating portion 1133. Both ends of the pin elastic member 1194 abut against the pin elastic member accommodating portion 1133 and the housing 1110, respectively, to bias the pin 1130 toward the driving member 1140, i.e., toward the non-parked position.

[0083] 15 to 17, the operation of the intermittent motion device including the drive member 1140, the operating member 1160 and the engagement teeth 1150 will be described.

[0084] In FIG. 15, the operating member 1160 is in a non-pressing position, i.e., an initial position. At this time, the pedal 1162 of the operating member 1160 is in a substantially horizontal position or in a position at an angle to the horizontal plane, for example, 30°. The pushing portion 1163 is located on the front surface 1151 of the engagement tooth 1150. For ease of understanding, the same engagement tooth 1150 is indicated by an arrow in FIGS. 15 to 17. In this state, the pushing portion 1163 may be attached in close contact with the front surface 1151, or may have a certain distance (idle stroke) from the front surface 1151. At this time, the pin 1130 may correspond to the non-parking portion 1146 of the driving member 1140, or may correspond to the parking portion 1145 of the driving member 1140.

[0085] When a user wants to switch between the parked and unparked states, the user can press the operating member 1160 to move the operating member 1160 from the initial position to the operating position. When the operating member 1160 moves from the initial position to the operating position, the pressing portion 1163 of the operating member 1160 presses the front surface 1151 of the engagement tooth 1150 (the engagement tooth 1150 indicated by an arrow in FIG. 15) so that the engagement tooth 1150 is held in the engagement position. When the engagement tooth 1150 is in the engagement position, the radial protrusion with respect to the first shaft 1141 is farther than when the engagement tooth 1150 is in the avoidance position. The pressing portion 1163 presses the engagement tooth 1150, and the engagement tooth 1150 moves the driving member 1140. As a result, the driving member 1140 rotates together with the operating member 1160 by the engagement tooth 1150, resulting in the state shown in FIG. 16.

[0086] In FIG. 16, the operating member 1160 has reached the pressed position, i.e., the operating position. At this time, the pedal 1162 is in a position inclined downward. With the rotation of the operating member 1160, the drive member 1140 and each of the engagement teeth 1150 pass through one engagement tooth pitch. At this time, the user releases the operating member 1160, and the operating member 1160 returns to the initial position (FIG. 6B) by the operating elastic member 1192, as shown in FIG. 17.

[0087] In FIG. 17, when the operating member 1160 moves from the operating position to the initial position, the pushing portion 1163 presses and abuts against the rear surface 1152 of the next engagement tooth 1150, thereby making the engagement tooth 1150 in its avoidance position. Since the engagement tooth 1150 in the avoidance position retreats to the driving member 1140, the driving member 1140 is not driven to rotate by the operating member 1160, that is, while the operating member 1160 moves from the operating position to the initial position, the driving member 1140 does not rotate together with the operating member 1160. Therefore, the operating member 1160 returns to the initial position after passing the next engagement tooth 1150. In this process, the driving member 1140 does not rotate together with the operating member 1160.

[0088] In this manner, in a reciprocating cycle in which the operating member 1160 moves from the initial position to the operating position and then moves from the operating position to the initial position, the driving member 1140 rotates at an engagement tooth pitch, realizing an intermittent motion of the driving member 1140. This intermittent motion switches the stroller from a non-parked state to a parked state, and vice versa.

[0089] In addition, if there is an idle stroke between the operating member 1160 and the engagement teeth 1150 in the initial position, the intermittent motion device can allow the user to perform an incomplete pressing operation. Specifically, when an idle stroke is set, if the operating member 1160 has not moved completely in the pressing process, the driving member 1140 and the corresponding engagement teeth 1150 will not rotate completely, and the pushing portion 1163 of the operating member 1160 can ride over the next engagement teeth 1150 in the reset process. In the absence of an idle stroke, if the driving member 1140 and the corresponding engagement teeth 1150 have not rotated completely, the pushing portion 1163 cannot ride over the next engagement teeth 1150, and the driving member 1140 cannot be moved by the next reciprocating motion of the operating member 1160.

[0090] When there is no idle stroke, the stroke of the reciprocating motion of the operating member 1160 is equal to the distance between two adjacent engagement teeth 1150. On the other hand, when there is an idle stroke, the stroke of the reciprocating motion of the operating member 1160 is greater than the distance between two adjacent engagement teeth 1150.

[0091] In this embodiment, the engagement teeth 1150 undergo a rotational movement relative to the drive member 1140. In other embodiments, the engagement teeth 1150 may also move linearly relative to the drive member 1140, with each engagement tooth 1150 moving linearly between the engaged and avoided positions along a direction perpendicular to the first axis 1141. Specifically, the direction of linear movement of the engagement teeth 1150 is perpendicular to the first axis 1141, e.g., a radial direction of the drive member 1140.

[0092] 18-19, the interaction between the driving member 1140 and the pin 1130 is shown. In FIG. 18 and FIG. 19, since the non-parking portion 1146 of the driving member 1140 corresponds to the pin 1130, the pin elastic member 1194 biases the pin 1130 to the non-parking position, i.e., a position away from the wheel 1120. At this time, the pin insertion portion 1131 is not inserted into the parking hole 1121, and the wheel 1120 can rotate freely. When the driving member 1140 rotates, the driving slope 1146 pushes the pin 1130, so that the parking portion 1145 corresponds to the pin 1130, and the pin 1130 overcomes the bias of the pin elastic member 1194 and reaches the parking position, i.e., a position close to the wheel 1120 (not shown). At this time, the pin insertion portion 1131 is inserted into the parking hole 1121 to prevent the wheel 1120 from rotating.

[0093] Hereinafter, the wheel lock structure and the link mechanism in the other wheel 1220 will be described with reference to FIGS. 6A, 10, and 20 to 25.

[0094] To provide a braking effect to the wheel 1120 and the other wheel 1220, the wheel lock structure includes the other wheel 1220, the other housing 1210, the other pin 1230, the other drive member 1240, the cable 1191 and a link mechanism.

[0095] The other wheel 1220 is arranged in a pair with the wheel 1120 and is rotatably connected to the other housing 1210 around the first axis 1141. The stroller frame 1300 is erected between the other housing 1210 and the housing 1110, and the other wheel 1220 is provided with the other parking hole (not shown) on the side facing the other housing 1210.

[0096] The other pin 1230 is disposed within the other housing 1210. The other pin 1230 has substantially the same structure and arrangement as the pin 1130 and is also capable of axial movement between a parked position and an unparked position. In the parked position of the other pin 1230, the other pin 1230 is inserted into the other parking hole to prevent the other wheel 1220 from rotating, and in the unparked position of the other pin 1230, the other pin 1230 leaves the other parking hole to allow the other wheel 1220 to rotate.

[0097] The other driving member 1240 is rotatably connected to the other housing 1210 and abuts against an end of the other pin 1230. The other driving member 1240 is provided with a other parking portion 1245 that protrudes toward the other wheel 1220 on the side abutting against the other pin 1230, and a other non-parking portion 1246 that is recessed away from the other wheel 1220. When the other driving member 1240 rotates, the other parking portion 1245 or the other non-parking portion 1246 abuts against the other pin 1230, thereby moving the other pin 1230 to its parking position or non-parking position. As shown in FIG. 24A, the other pin elastic member 1294 is disposed between the other pin 1230 and the other housing 1210 (not shown), and the other pin elastic member 1294 urges the other pin 1230 toward the non-parking position. The other driving ramp 1247 is disposed between the other non-parking portion 1246 and the other parking portion 1245. While the other driving member 1240 rotates, the other driving ramp 1247 pushes the other pin 1230 to overcome the bias of the other pin elastic member 1294 and reach the parking position. Unlike the driving member 1140, the other driving member 1240 performs a reciprocating motion (described in detail below), so that it can provide only one parking portion and one non-parking portion, instead of providing multiple parking portions and multiple non-parking portions as the driving member 1140 does.

[0098] The other pin 1230 is provided with the other first indication portion 1234 and second indication portion 1235 having the same configuration and function as the first indication portion 1134 and second indication portion 1135, so the description will be omitted.

[0099] One end of the cable 1191 is connected to a cable first end connection portion 1171 of a link slider 1170 of the link mechanism. The other end of the cable 1191 is connected to a periphery of the other driving member 1240, specifically, to a cable second end connection portion 1241 around the other driving member 1240. Both ends of the cable 1191 may have a hammer head 1191a (see FIG. 28) or a similar structure for joining the cable first end connection portion 1171 and the cable second end connection portion 1241. Since the hammer head is a common joining structure, a detailed description thereof will be omitted in this application.

[0100] The link mechanism includes a link slider 1170 and a link seat 1180. The link slider 1170 is provided in the housing 1110 and is slidable relative to the wheel 1120 in a direction perpendicular to the first axis 1141. The link seat 1180 is provided within the housing 1110 and is slidable relative to the wheel 1120 in a direction parallel to the first axis 1141. The link seat 1180 and the link slider 1170 are engaged in an inclined plane.

[0101] The link mechanism is configured so that when one parking section 1145 abuts against the pin 1130, the other parking section 1145 abuts against the link sheet 1180, the link sheet 1180 slides in a direction parallel to the first axis 1141, the link sheet 1180 slides the link slider 1170 vertically in the axial direction due to slope engagement, and the link slider 1170 rotates the other drive member 1240 via the cable 1191.

[0102] As shown in FIG. 25, the link slider 1170 extends in a direction substantially perpendicular to the first axis 1141 and includes a cable first end connection portion 1171 and a slider slope 1172. The cable first end connection portion 1171 is located at an end portion of the link slider 1170 away from the first axis 1141, and this end portion is formed, for example, as a cylindrical groove to which the hammer head 1191a of the cable 1191 is joined. The slider slope 1172 extends from a substantially middle position of the link slider 1170 to an end portion of the link slider 1190 close to the first axis 1141, and extends at an angle toward the drive member 1140. The slider slope 1172 is provided by two slider slopes arranged side by side in a direction perpendicular to the first axis 1141, and a gap is formed between the two slider slopes 1172. The cylindrical portion 1182 of the link seat 1180 is inserted into the gap so that the link seat 1180 slides axially relative to the link slider 1170.

[0103] The link sheet 1180 extends in a direction substantially parallel to the first axis 1141, and includes a link sheet base portion 1181, a cylindrical portion 1182, and a slope portion 1183. The link sheet base portion 1181 is located at one end of the link sheet 1180 close to the drive member 1140, the cylindrical portion 1182 extends from the link sheet 1180 to one end of the link sheet 1180 far from the drive member 1140, and the slope portion 1183 extends laterally from both sides of the link sheet 1180 and has an inclination corresponding to the slider slope 1172. The position of the link sheet 1180 relative to the driving member 1140 is configured so that when one parking portion 1145 of the driving member 1140 abuts against the pin 1130, the other parking portion 1145 of the driving member 1140 also abuts against the link sheet 1180, and when one non-parking portion 1146 of the driving member 1140 abuts against the pin 1130, the other non-parking portion 1146 of the driving member 1140 abuts against the link sheet 1180.

[0104] Referring to FIG. 26A, the pin 1130 and the other pin 1230 are in the non-parking position. At this time, the two non-parking portions 1146 of the driving member 1140 abut against the pin 1130 and the link sheet 1180, respectively. When the driving member 1140 rotates to the state shown in FIG. 26B, one parking portion 1145 of the driving member 1140 abuts against the pin 1130, and the pin 1130 reaches its parking position. Meanwhile, the other parking portion 1145 of the driving member 1140 abuts against the link sheet 1180, and the link sheet 1180 moves away from the driving member 1140 (or in other words, toward the wheel 1120). Due to the abutment relationship between the slope portion 1183 of the link sheet 1180 and the slider slope 1172 of the link slider 1170, the link slider 1170 moves to its near end position (a position close to the bottom). The link slider 1170 moves the other driving member 1240 via the cable 1191, and rotates the other driving member 1240, so that the other parking portion 1245 abuts against the other pin 1230 and enters the parking position. This allows the wheel 1120 and the other wheel 1220 to park / run synchronously.

[0105] 27 and 28, the configurations of the link slider 1170 and the link sheet 1180 can be understood from the cross-sectional views showing the link sheet elastic member 1195 provided between the housing 1110 and the link sheet 118a.

[0106] 29 and 30, the parking portion 1145 (not shown) abuts against the link sheet 1180 so that the link sheet 1180 slides toward the wheel 1120 (left side in FIG. 30). Due to the interaction between the slope portion 1183 and the slider slope 1172, the link slider 1170 slides toward the first shaft 1141 (lower side in FIG. 30) and pulls the cable 1191. Thus, the cable 1191 pulls the other driving member 1240 so that the other parking portion 1245 of the other driving member 1240 corresponds to the other pin 1230 and the other pin 1230 reaches the parking position.

[0107] In FIG. 31 and FIG. 32, the non-parking portion 1146 (not shown) abuts against the link sheet 1180 such that the link sheet elastic member 1195 arranged between the housing 1110 and the link sheet 118O biases the link sheet 1180 to slide toward the driving member 1140 (to the right in FIG. 32). Due to the interaction between the slope portion 1183 and the slider slope 1172, the link slider 1170 slides away from the first shaft 1141 (lower side in FIG. 32) to release the cable 1191. Thus, the cable 1191 releases the other driving member 1240 such that the other non-parking portion 1246 of the other driving member 1240 corresponds to the other pin 1230, and the other pin 1230 reaches the non-parking position.

[0108] In short, this application provides a wheel lock mechanism that allows the user to switch between parked and unparked states by simply pressing an operating member. The wheel lock mechanism of this application also enables interlocking between two wheels, allowing the user to simultaneously switch between parked and unparked states of two wheels by simply pressing one operating member.

[0109] 33 and 34, a stroller according to an embodiment of the present disclosure includes a stroller frame 2100, a storage crate 2200, and a locking mechanism 2300. The stroller can realize unlocking and locking between the storage crate 2200 and the stroller frame 2100 by simply rotating the handlebar 2220 with one hand, and can be operated without requiring additional operating members, which simplifies the structure and saves costs.

[0110] Specifically, the stroller frame 2100 includes two handrail support bars 2110, two front leg support bars (not shown), two rear leg support bars, and four wheel assemblies (not shown). The lower ends of the two handrail support bars 2110 are connected to the upper ends of the two front leg support bars, respectively, and the two rear leg support bars are connected to the two middle front leg support bars at a certain angle, and the four wheel assemblies are installed on the lower ends of the two front leg support bars and the two rear leg support bars, respectively.

[0111] Specifically, as shown in FIG. 33 and FIG. 34, the storage crate 2200 is detachably attached to the stroller frame 2100. The storage crate 2200 includes a storage basket 2210 and a handle bar 2220. The storage basket 2210 includes a connection frame 2211 and a cover fabric (not shown) sleeved to the connection frame 22111. In this manner, the cover fabric sleeved to the outside of the connection frame 2211 forms a storage space for storing items. The connection frame 2211 is a substantially rectangular frame including a first connection tube 2211a and a second connection tube 2211b. The first connection tube 2211a and the second connection tube 2211b are both U-shaped tubes and are connected via a connection sheet 2330 described later. The handle bar 2220 has a substantially U-shaped rod structure including a cross bar 2221 and two struts 2222 connected to both ends of the cross bar 2221. The handlebar 2220 is rotatably connected to the storage basket 2210 .

[0112] Specifically, as shown in Figures 35 to 37, in this embodiment, there are two locking mechanisms 2300 located respectively on the left and right sides of the stroller frame 2100. Each locking mechanism 2300 includes a fixing sheet 2310, an actuating member 2320, a connecting sheet 2330, a connecting pin 2340, a connecting cover 2350, a push block 2360, an engagement block 2370, a first reset member 2380, and a positioning member 2390. Taking one of the locking mechanisms 2300 as an example, the configuration of the locking mechanisms 2300 will be described in detail below.

[0113] As shown in FIG. 35, the fixed sheet 2310 is slidably provided on the handrail support bar 2110. Specifically, a chute 2311 may be provided on the fixed sheet 2310, and a slide rail 2111 may be provided on the handrail support bar 2110. The slidable cooperation between the fixed sheet 2310 and the handrail support bar 2110 is realized by the cooperation between the chute 2311 and the slide rail 2111. The fixed sheet 2310 is provided with an engagement hole 2312 and a cooperating bulge 2313. In this embodiment, the engagement hole 2312 is located above the cooperating bulge 2313. Of course, in other embodiments, the relative positions of the engagement hole 2312 and the cooperating bulge 2313 may be set as necessary.

[0114] As shown in Figs. 37 and 38, the actuating member 2320 is disposed between the connection sheet 2330 and the connection cover 2350. The actuating member 2320 is fixed to an end of one strut 2222 of the handlebar 2220, the end being away from the crossbar 2221. The actuating member 2320 includes a connection portion 2321 and a substantially disk-shaped driver 2322. In this embodiment, the connection portion 2321 and the driver 2322 are integrally formed. In other embodiments, the connection portion 2321 and the driver 2322 may be configured to be independent and connected to each other. A receiving slot 2322a having a substantially circular cross section is provided on the side surface of the driver 2322, and a plurality of positioning recesses 2322b are provided in an annular shape on the side wall of the receiving groove 2322a. A push rib 2322c is further provided in an annular shape on the outer circumferential surface of the driver 2322, and the push rib 2322c is disposed at an angle with respect to the axial direction of the driver 2321.

[0115] 36, 37 and 49, a side of the connecting sheet 2330 away from the actuating member 2320 is provided with a cooperating slot 2331, and the cooperating slot 2330 can cooperate with the cooperating bulge 2313. The connecting sheet 2330 is provided with an accommodating hole 2332 through which the engaging block 2370 can movably pass. A side of the connecting sheet 2330 facing the actuating member 2320 is provided with a connecting arm 2333. In this embodiment, the actuating member 2320 includes two connecting arms 2333, and the two connecting arms 2333 are disposed opposite to each other. In other embodiments, the number and configuration of the actuating member 2320 can also be adjusted according to actual needs.

[0116] Alternatively, as shown in Figs. 36, 37, and 49, each locking mechanism 2300 has two connection pins 2340 located on both sides of the connection sheet 2330. In this embodiment, the connection pins 2340 and the connection sheet 2330 are integrally formed, and in other embodiments, the connection pins 2340 and the connection sheet 2330 may be independent structures connected to each other. In addition, the two connection pins 2340 of one locking mechanism 2300 are inserted into one end of the first connection tube 2211a and one end of the second connection tube 2211b, respectively, and connected, and the two connection pins 234 of the other locking mechanism 2300 are inserted into the other end of the first connection tube 2212a and the other end of the second connection tube 2212b, respectively, and connected so that the first connection tube 2211a and the second connection tube 2211b form a substantially rectangular connection frame 2211. Of course, the manner in which the first connection tube 2211a and the second connection tube 2211b are connected is not limited to this.

[0117] 36 and 37, in each locking mechanism 2300, the shape of the connection cover 2350 is consistent with the shape of the connection sheet 2330. The connection cover 2350 and the connection sheet 2330 are formed to close an accommodation space for accommodating the operating member 2320, the engagement block 2370, the positioning member 2390 and the first reset member 2380, thereby making the overall appearance structure of the stroller more simple and beautiful.

[0118] In this embodiment, as shown in Figs. 37 and 39, in each lock mechanism 2300, the push block 2360 and the engagement block 2370 are integrally formed. Of course, in other embodiments, the push block 2360 and the engagement block 2370 may be two independent structures connected to each other. As shown in Figs. 41 to 44, both ends of the first reset member 2380 abut against the connection cover 2350 and the engagement block 2370, respectively, and the engagement block 2370 is arranged to be movable in the accommodation hole 2332 along the axial direction of the driver 2322. The engagement block 2370 can move in a direction away from the connection cover 2350 so as to engage with the engagement hole 2312, thereby realizing the locking of the storage crate 2200 and the stroller frame 2100, and conversely, the engagement block 2370 can move in a direction approaching the connection cover 235O so as to disengage from the engagement hole 2312, thereby realizing the unlocking of the storage crate 2200 and the stroller frame 2100. The first reset member 2380 constantly biases the engagement block 2370 to move in a direction to engage with the engagement hole 2312. In this embodiment, the first reset member 2380 is a spring, and in other embodiments, the first reset member 238 may be other elastic structures. The push block 2360 can abut against the push rib 2322c.

[0119] In this embodiment, as shown in Figs. 45 to 48, the push rib 2322c can abut against the side of the push block 2360 that is away from the connection cover 2350. Of course, in other embodiments, the push rib 2322c may be provided so as to be able to abut against other positions of the push block 2360. The push rib 2322c is disposed so as to be inclined with respect to the axial direction of the driver 2322, so that when the drive member 2320 rotates due to the rotation of the handle bar 2220, the push rib 2322c on the drive member 232 abuts against the pressing rib 2322b at different positions, and the push rib 2360 moves in the axial direction of the driver 2321, i.e., the engagement block 2370 moves along the axis of the driver 2322. As shown in Figs. 47 and 48, when the handle bar 2220 rotates to the second rotation position (for example, the handle bar 2220 can be disposed vertically), the push rib 2322c abuts against the push block 2360 at position A closest to the connection cover 2350. At this time, the push block 2360 is located at a position close to the connecting cover 2350, i.e., at a position farthest from the connecting sheet 2330 and the fixing sheet 2310, and the first reset member 2380 is compressed. At this time, the engagement block 2370 is disengaged from the engagement hole 2312, and the storage crate 2200 and the stroller frame 2100 are unlocked. As shown in Figures 45 and 46, when the handlebar 2220 is rotated to the first rotation position (for example, the handlebar 2220 may be positioned horizontally), the push rib 2322c no longer abuts the pushing block 2360, and at this time, the engagement block 2370 moves in a direction away from the connection cover 2350, i.e., in a direction approaching the connection sheet 2330 and the fixing sheet 2310, due to the elastic restoring force of the first reset member 2380, thereby enabling the engagement block 2371 to be inserted into the engagement hole 2312 via the accommodation hole 2332, thereby locking the storage crate 2200 and the stroller frame 2100.

[0120] As shown in FIGS. 40, 46, and 48, the positioning member 2390 is provided in the receiving slot 2322a. The positioning member 2390 has a substantially hollow disk-like structure. The positioning member 2390 is provided with a connection hole 2391 that cooperates with the connection arm 2333 to enable connection between the connection sheet 2330 and the positioning member 2392. Two elastic arms 2392 are provided around the positioning member 2390 and are arranged opposite each other. Each of the two elastic arms 2392 is provided with at least one positioning protrusion 2392a that matches one of the positioning recesses 2322b. This allows the positioning member 2390 and the connection sheet 2330 to be fixed relative to each other. When the handlebar 2220 is rotated relative to the positioning member 2390 and the connecting seat 2330, the elastic arm 2392 on the positioning member 2390 is elastically deformed, and the positioning protrusion 2392a on the elastic arm 2392 cooperates with a different positioning recess 2322b depending on the rotation angle of the actuating member 2320, thereby realizing the locking of the handlebar 2220 to the storage crate 2200.

[0121] The locking mechanism 2300 also includes a pivot shaft (not shown), in which a first pivot hole 2322d is provided in the driver 2322, a second pivot hole 2334 is provided in the connection sheet 2330, a third pivot hole 2351 is provided in the connection cover 2350, and a fourth pivot hole 2393 is provided in the positioning member 2390. The pivot shaft passes through the second pivot hole 2334, the fourth pivot hole 2393, the first pivot hole 2322d, and the third pivot hole 2351 to realize rotation of the driver 2322 relative to the connection sheet 2330, the positioning member 2390, and the connection cover 2350.

[0122] It is understood that the specific structure of the other locking mechanism 2300 is similar to the locking mechanism 2300 which will not be described any further here.

[0123] The steps for using the stroller are as follows:

[0124] When the storage crate 2200 needs to be unlocked and moved from the stroller frame 2100, the handle bar 2220 is rotated from a horizontal position to a vertical position, which rotates the actuating member 2320 via the handle bar 2220, so that the push rib 2322c abuts against the push block 2360 at position A. The push block 2360 moves the engagement block 2370 in a direction approaching the connection cover 2350, i.e., away from the connection sheet 2330 and the fixing sheet 2310, and the first reset member 2380 is compressed, disengaging the engagement block 2370 from the engagement hole 2312, pulling the storage crate 2200 upward and separating the cooperating bulge 2313 from the cooperating slot 2331. At this time, the storage crate 2200 can be unlocked and removed from the stroller frame 2100, as shown in Figs. 43, 44, 47, and 48.

[0125] When the storage crate 2200 needs to be secured to the stroller frame 2100, the storage crate 2200 is placed on the stroller frame 2100, thereby cooperating with the cooperating slots 2331 (see FIG. 37) of the locking mechanisms 2300 on both sides of the storage crate 2200 and the cooperating bulges 2313 (see FIG. 35) of the handrail support bars 2110 slidably arranged on both sides of the stroller frame 2100. The handle bar 2220 rotates from a vertical position to a horizontal position, and the operating member 2320 is driven and rotated by the handle bar 2220 so that the push rib 2322c does not hit the push block 2360, and the engagement block 2370 moves together with the push block 236O in a direction away from the connection cover 2350 by the first reset member 2380, i.e., closer to the connection sheet 2330 and the fixed sheet 2310, and the engagement block 2370 engages with the engagement hole 2312, and at the same time the storage crate 2200 is locked to the stroller frame 2100.

[0126] This stroller has at least the following technical advantages:

[0127] In the stroller, the locking mechanism 2300 is provided between the stroller frame 2100 and the storage crate 2200, and can be locked and unlocked between the storage crate 2200 and the stroller frame 2200 simply by rotating the handle bar 2220, which is easy to operate. For example, the first rotation position can be set to a position where the handle bar 2220 is arranged horizontally, and the second rotation position can be set to a position where the handle bar 2220 is arranged vertically. Then, when it is necessary to remove the storage crate 2200 from the stroller frame 2100, the storage crate 2200 can be unlocked from the stroller frame 2100 and lifted from the stroller frame 2100 simply by rotating the handle bar 2220 from a horizontal position to a vertical position with one hand. Also, since there is no need to provide an additional operating member between the stroller frame 2100 and the storage crate 2200 to realize the unlocking and locking between the storage crate 2200 and the stroller frame 2200, the structure is simple and the cost is saved.

[0128] As shown in Figs. 50-52, 62, and 63, another embodiment of the present application provides a stroller including a stroller frame 2100, a storage crate 2200, a first engagement sheet 2400, a second engagement sheet 2500, a cooperating pin 2600, and a second reset member 2700. The stroller can be flexibly designed in terms of spatial structure, and is particularly convenient for arranging two upper and lower seats, and the lower seat can avoid interference with the storage crate 2200, and the coexistence effect of the storage crate 2200 and the lower seat can be realized. Next, the structure of the stroller will be described in detail by taking a stroller with two upper and lower seats as an example. Note that the stroller frame 2100 in this embodiment is not limited to the stroller frame 2100 having two upper and lower seats, and can be applied to a one-seat stroller and other types of strollers.

[0129] Specifically, as shown in Figures 50 to 52, the stroller frame 2100 includes two handrail support bars 2110 arranged opposite to each other, two front leg support bars 2120 arranged opposite to each other, two rear leg support bars 2130 arranged opposite to each other, four wheel assemblies 2140, a first sitting assembly 2150, and a second sitting assembly 2160. The lower ends of the two handrail support bars 2110 are connected to the upper ends of the two front leg support bars 2120, respectively, and the two rear leg support bars 2130 are connected to the two front leg support bars 2120 at a certain angle, respectively, and the four wheel assemblies 2140 are installed at the lower ends of the two front leg support bars 2120 and the two rear leg support bars 2130, respectively. In this way, each of the first sitting assembly 2150 and the second sitting assembly 2160 can accommodate one child, thereby realizing the purpose of carrying two children in the same stroller at the same time, which is very convenient for the caregiver's travel. In this embodiment, the first sitting assembly 2150 and the second sitting assembly 2160 are both child seats. The first sitting assembly 2150 includes two first backrest support bars 2151, which are respectively connected to the two handrail support bars 2110. The second sitting assembly 2160 includes two second backrest support bars 2161, which are respectively connected to the two rear leg support bars 2130. Of course, in other embodiments, as shown in Figures 56 and 57, the first sitting assembly 2150 or the second sitting assembly 2160 can be replaced with a car seat, a baby cot, or the like, as desired.

[0130] Specifically, as shown in Figs. 50 to 52, the storage crate 2200 includes a connection frame 2211 and a cover fabric (not shown) sleeved on the connection frame 2211. The cover fabric sleeved on the outside of the connection frame 2211 forms a storage space for storing items. The connection frame 2211 is a substantially rectangular frame disposed on the front leg support bar 2120. In this way, the storage crate 2200 realizes the coexistence effect of the storage crate 2200 and the second sitting assembly 2160 located below without interfering with the second sitting assembly 2160 disposed between the two rear leg support bars 2130.

[0131] In this embodiment, as shown in Figs. 50 to 52, the storage crate 2200 is connected to the two front leg support bars 2120 via a first engagement sheet 2400 and a second engagement sheet 2500. Of course, in other embodiments, the storage crate 2200 may be connected to the two front leg support bars 2120 in other ways. There are two first engagement sheets 2400 and two second engagement sheets 2500, which are used to connect the left and right sides of the connection frame 2211 to the two front leg support bars 2120, respectively. Next, one of the first engagement sheets 2400 and the second engagement sheet 2500 will be described as an example.

[0132] As shown in FIG. 61 to FIG. 63, the first engagement sheet 2400 includes a turntable 2410 and a connection member 2420 connected to each other. In this embodiment, the turntable 2410 and the connection member 2420 are integrally formed. In other embodiments, the turntable 2410 and the connection member 2420 may be two separate members connected to each other. The turntable 2410 is rotatably connected to the front foot support bar 2120, and the turntable 2410 is provided with two oppositely arranged cooperating slots 2411. The second engagement sheet 2500 has a substantially elongated structure. As shown in FIG. 50, one end of the second engagement sheet 2500 is rotatably connected to a substantially intermediate position on the connection frame 2211 side, and the other end of the second engagement sheet 2500 is rotatably connected to an end of the connection member 2420 away from the turntable 2410. In this way, the first engagement sheet 2400 and the second engagement sheet 2500 form a structure similar to a rotating joint. When the storage crate 2200 is not needed, the connection frame 2211 can be rotated and folded to a state where it substantially overlaps with the front leg support bar 2120 as shown in FIG. 51, thereby saving space without affecting the removal of the child from the second sitting assembly 2160. Also, the other end of the second engagement sheet 2500 is detachably connected to the end of the connection member 2420 away from the turntable 2410 as shown in FIG. 52, and when the storage crate 2200 is not needed for a long time, the second engagement sheet 2500 and the first engagement sheet 2400 can be separated to remove the storage crate 2200 from the stroller frame 2100.

[0133] Of course, in other embodiments, as shown in FIGS. 58 to 60, the first engagement sheet 2400 may include only a connection member 2420, without being limited thereto. Also, as shown in FIG. 62 and FIG. 63, the front foot support bar 2120 is provided with an attachment slot 2121, and one of the cooperating pins 2600 is movably disposed in the attachment slot 2121. One end of one of the second reset members 2700 abuts against the groove bottom of the attachment slot 2121, and the other end abuts against the cooperating pin 2600. The second reset member 2700 always biases the cooperating pin 2600 to move in a direction approaching the cooperating slot 2411, and the cooperating pin 2600 can be inserted into any cooperating slot 24111 to position the first engagement seat 2400 at a specific position. In this embodiment, the second reset member 2700 is a spring, and in other embodiments, the second reset member 2700 may be of other elastic structures. For example, the two cooperating slots 2411 can be a first cooperating slot 2411 and a second cooperating slot 2411. When the first engagement sheet 2400 is rotated until the cooperating pin 2600 is inserted into the first cooperating slot 2411, the first engagement sheet 2400 has the connecting member 2420 in a substantially vertical state, and the first engagement sheet 2400 and the second engagement sheet 2500 cooperate with each other to bring the storage crate 2200 into a fully open state, as shown in FIG. 62. When the second engagement sheet 2500 is rotated until the cooperating pin 2600 is inserted into the second cooperating slot 2411, the first engagement sheet 2400 has the connecting member 2420 in a downwardly inclined state, and the first engagement sheet 2400 and the second engagement sheet 2500 cooperate with each other to bring the storage crate 2200 into a fully folded state, as shown in FIG. 63. Of course, the number and arrangement of the cooperating slots 2411 can be adjusted according to actual needs. For example, but not limited to, one or more cooperating slots 2411 can be provided so that the storage crate 2200 has a semi-folded state between the fully open state and the fully folded state, etc. Of course, the manner of realizing the position lock of the first engagement sheet 2400 is not limited to the manner in which the cooperating slots 2411 and the cooperating pins 2600 cooperate with each other as described in this embodiment, and many variations are possible as long as the position of the first engagement sheet 2400 can be fixed.

[0134] The stroller has at least the following technical advantages:

[0135] In such a stroller, the storage crate 2200 is installed on the front leg support bar 2120 of the stroller frame 2100, which facilitates the design of the spatial structure of the stroller. In particular, for a stroller having two seats, an upper and lower, the storage crate 2200 is provided on the front leg support bar 2120, which can prevent interference between the lower seat of the stroller and the storage crate 2200, thereby achieving the effect of allowing the storage crate 2200 and the lower seat to coexist.

[0136] The technical features of the above embodiments may be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, unless there is a contradiction between the combinations of these technical features, they should be considered as belonging to the scope recorded in this specification.

[0137] Since the present application may be embodied in various forms without departing from the spirit and substance of the present application, it should be understood that the above-described embodiments are not limited to the details described above, but should be interpreted in the broadest sense as defined in the claims. Accordingly, all modifications that come within the scope of the claims or their equivalents should be covered by the claims. [Explanation of symbols]

[0138] 1110 Housing 1111 Indicator window 1112 Insertion Slot 1113 Pin hole 1114 Wheel axle hole 1120 Wheels 1121 Parking Hole 1122 Wheel shaft 1130 Pin 1131 Pin insertion part 1132 Pin contact part 1133 Pin elastic member receiving section 1134 First Instruction 1135 Second Instruction 1140 Driving member 1141 First Axis 1142 Drive member shaft hole 1143 Engagement tooth groove 1143a Engagement limited part 1143b Evasion limited part 1143c Engagement teeth elastic member abutment portion 1144 Engagement tooth shaft 1145 Parking Department 1146 Non-Parking Section 1147 Drive ramp 1150 Engagement teeth 1151 Front 1152 Rear 1153 Engagement tooth shaft hole 1154 Engagement teeth elastic member receiving portion 1155 Second Axis 1160 Operating member 1161 Operating member body 1162 Pedal 1163 Push part 1164 Insertion Post 1170 Link Slider 1171 Cable first end connection 1172 Slider Slope 1180 Link Sheet 1181 Link sheet stand 1182 Cylindrical part 1183 Slope section 1191 Cable 1191a Hammerhead 1192 Operation elastic member 1193 Engagement teeth elastic member 1194 Pin elastic member 1195 Link sheet elastic member 1210 Other housing 1220 The other wheel 1230 other pin 1234 The other first indicator 1235 The other second indicator 1240 The other driving member 1241 Cable second end connection 1245 The other parking area 1246 Other non-parking area 1247 Other driving slope 1294 The other pin elastic member 1300 Stroller Frame 2100 Stroller Frame 2110 Handrail support bar 2111 Slide rail 2120 Front leg support bar 2121 Mounting slot 2130 Rear leg support bar 2140 Wheel Assembly 2150 1st Sitting Assembly 2151 1st backrest support rod 2160 Second Sitting Assembly 2161 Second back support rod 2200 Storage Crate 2210 Storage Basket 2211 Connection Frame 2211a First connecting tube 2211b Second connecting tube 2220 Handlebar 2221 Crossbar 2222 Strut 2300 Locking mechanism 2310 Fixed seat 2311 Shoot 2312 Engagement hole 2313 Collaborative Bulge 2320 Actuating member 2321 Connection 2322 Driver 2322a Storage Slot 2322b Positioning recess 2322c Push Rib 2322d 1st pivot hole 2330 Connection Sheet 2331 Collaborative Slot 2332 Receiving hole 2333 Connecting Arm 2334 Second Pivot Hole 2340 connection pin 2350 Connection Cover 2351 3rd pivot hole 2360 Pushing Block 2370 Engagement block 2380 First reset member 2390 Positioning member 2391 Connection hole 2392 Elastic Arm 2392a Positioning protrusion 2393 4th pivot hole 2400 First engagement sheet 2410 Turntable 2411 Collaborative Slot 2420 Connection parts 2500 Second engagement sheet 2600 Collaborative Pin 2700 Second reset member

Claims

1. An intermittent movement device including a housing (1110), a drive member (1140), a plurality of engagement teeth (1150), and an operating member (1160), The drive member (1140) is disposed within the housing (1110) and is rotatable about a first axis (1141); the plurality of engagement teeth (1150) are circumferentially distributed on the drive member (1140) based on the first axis (1141); The operating member (1160) can reciprocate between an initial position and an operating position relative to the drive member (1140) about the first axis (1141); When the operating member (1160) moves from the operating position to the initial position, the operating member (1160) moves past one of the engagement teeth (1150) and returns from the operating position to the initial position, and the drive member (1140) does not rotate together with the operating member (1160). An intermittent movement device comprising:

2. the plurality of engagement teeth (1150) are each rotatable relative to the drive member (1140) between an engagement position and an escape position; When the operating member (1160) moves from the initial position to the operating position, the operating member (1160) pushes one of the engagement teeth (1150) into the engagement position, and rotates the driving member (1140) along a rotation direction via the engagement tooth (1150); When the operating member (1160) moves from the operating position to the initial position, the operating member (1160) moves beyond the next engagement tooth (1150) after the one engagement tooth (1150) in the rotation direction and returns from the operating position to the initial position, and the drive member (1140) does not rotate together with the operating member (1160).

2. The intermittent mobility device of claim 1.

3. each of said engagement teeth (1150) is rotatable relative to said drive member (1140) between said engagement position and said escape position about a second axis (1155), said second axis (1155) being parallel to said first axis (1141); or each said engagement tooth (1150) is linearly movable between said engagement position and said escape position along a direction perpendicular to said first axis (1141); 3. The intermittent mobility device of claim 2.

4. Each of the engagement teeth (1150) includes a front surface (1151) and a rear surface (1152), the front surface (1151) and the rear surface (1152) being angled with respect to each other; The operating member (1160) includes a pushing portion (1163) that exerts a pushing action on one of the engagement teeth (1150), When the operating member (1160) moves from the initial position to the operating position, the pushing portion (1163) of the operating member (1160) presses the front surface (1151) of one of the engagement teeth (1150) so that the one of the engagement teeth (1150) is in the engagement position; When the operating member (1160) moves from the operating position to the initial position, the pushing portion (1163) passes over the next engagement tooth (1150) and presses the rear surface (1152) of the next engagement tooth (1150) to move the next engagement tooth (1150) to the avoidance position.

4. An intermittent movement device according to claim 2 or 3.

5. The intermittent movement device further includes a plurality of engaging teeth elastic members (1193); the plurality of engagement teeth elastic members (1193) are disposed between the plurality of engagement teeth (1150) and the drive member (1140) and bias the engagement teeth (1150) to the engagement position; In the engagement position, the engagement teeth (1150) protrude radially relative to the first shaft (1141) more than in the avoidance position. An intermittent moving device according to any one of claims 2 to 4.

6. The engaging tooth elastic member (1193) is a compression spring, and each of the engaging teeth (1150) includes an engaging tooth elastic member receiving portion (1194) that at least partially receives one end of each of the engaging tooth elastic members (1193).

6. The intermittent mobility device of claim 5.

7. The drive member (1140) includes a plurality of engagement teeth (1143); The plurality of engagement tooth grooves (1143) are formed concavely from one side surface of the driving member (1140), are distributed in a circumferential direction based on the first axis (1141), and respectively accommodate the plurality of engagement teeth (1150); Each of the engagement tooth grooves (1143) includes an engagement limiting portion (1143a), an avoidance limiting portion (1143b), and an engagement tooth elastic member abutment portion (1143c), the engagement limiting portion (1143a) prevents the corresponding engagement tooth (1150) from rotating beyond the engagement position relative to the drive member (1140) when the corresponding engagement tooth (1150) is in its engagement position; the avoidance limiting portion (1143b) prevents the corresponding engagement tooth (1150) from rotating beyond the avoidance position relative to the drive member (1140) when the corresponding engagement tooth (1150) is in the avoidance position; The engaging tooth elastic member abutting portion (1143c) is disposed adjacent to the engagement limiting portion (1143a) so that the other end of the engaging tooth elastic member (1193) abuts against the engaging tooth elastic member abutting portion (1143c). An intermittent moving device according to any one of claims 2 to 6.

8. The engagement limiting portion (1143a), the avoidance limiting portion (1143b), and the engagement tooth elastic member abutment portion (1143c) are all axially extending walls of the engagement tooth groove (1143), the engagement limiting portion (143a) faces radially both the avoidance limiting portion (1143b) and the engagement tooth elastic member abutment portion (1143c), the engagement limiting portion (1143a) is a radial outer wall of the engagement tooth groove (1143), and the avoidance limiting portion (1143b) and the engagement tooth elastic member abutment portion (1143c) are respectively radial inner walls of the engagement tooth groove (1143).

8. The intermittent mobility device of claim 7.

9. The stroke of each reciprocating movement of the operating member (1160) is equal to or greater than the distance between two adjacent engagement teeth (1150). An intermittent moving device according to any one of claims 1 to 8.

10. The operating member (1160) further includes an operating member main body (1161), the operating member main body (1161) being arranged coaxially with the driving member (1140) along the first axis (1141); The plurality of engagement teeth (1150) are arranged on a side of the driving member (1140) facing the operating member main body (1161), The pushing portion (1163) is disposed on the side of the operating member main body (1161) facing the driving member (1140), and when the operating member (1160) moves from the initial position to the operating position, the pushing portion (1163) protrudes in the axial direction and pushes the engagement teeth (1150). An intermittent moving device according to any one of claims 1 to 9.

11. The housing (1110) includes a disk surface facing the operating member main body (1161), and an insertion slot (1112) extending in a circumferential direction is formed on the disk surface. The operating member (1160) further includes an insertion post (1164) extending axially within the housing (1110); When the operating member (1160) reciprocates relative to the drive member (1140), the insertion post (1164) is inserted into the insertion slot (1112) and slides along the insertion slot (1112), and the insertion slot (1112) limits the stroke of movement of the operating member (1160) between the operating position and the initial position; the intermittent movement device further includes an operating elastic member (1192), the operating elastic member (1192) is disposed in the insertion slot (1112) and abuts between an end wall of the insertion slot (1112) and the insertion post (1164), and biases the operating member (1160) to the initial position; 11. The intermittent mobility device of claim 10.

12. A wheel lock structure comprising an intermittent movement device according to any one of claims 1 to 11, a wheel (1120), and a pin (1130), the wheel (1120) is rotatably connected to the housing (1110) around the first axis (1141), the wheel (1120) has a parking hole (1121) on the side facing the housing (1110), and the operating member (1160) and the wheel (1120) are located on the opposite side of the drive member (1140); The pin (1130) is disposed in the housing (1110), is located between the drive member (1140) and the wheel (1120), and can move axially between a parked position and a non-parked position, in which the pin (1130) is inserted into the parking hole (1121) to prevent the wheel (1120) from rotating, and in which the pin (1130) is removed from the parking hole (1121) to allow the wheel (1120) to rotate, The drive member (1140) of the intermittent movement device is rotatably connected to the housing (1110) and abuts against one end of the pin (1130), the drive member (1140) has a parking portion (1145) protruding toward the wheel (1120) and a non-parking portion (1146) recessed away from the wheel (1120) on the side abutting against the pin (1130), and when the drive member (1140) rotates, the parking portion (1145) or the non-parking portion (1146) abuts against the pin (1130), and the pin (1130) moves to the parking position or the non-parking position. A wheel lock structure characterized by the above.

13. the pin (1130) comprises a first indicator (1134) and a second indicator (1135), the first indicator (1134) and the second indicator (1135) being arranged along an axis and having different visual effects; An indication window (1111) is provided on a peripheral wall of the housing (1110), and when the pin (1130) is in the non-parking position, the first indication portion (1134) is exposed to the outside corresponding to the position of the indication window (1111), and when the pin (1130) is in the parking position, the second indication portion (1135) is exposed to the outside corresponding to the position of the indication window (1111).

13. A wheel lock arrangement according to claim 12.

14. a pin resilient member (1194) disposed between the pin (1130) and the housing (1110), the pin resilient member (1194) biasing the pin (1130) toward the non-parked position; 14. A wheel lock structure according to claim 12 or 13.

15. The parking portions (1145) and the non-parking portions (1146) are alternately distributed around the axis of the drive member (1140). A wheel lock structure according to any one of claims 12 to 14.

16. the wheel lock structure further includes another wheel (1220), another pin (1230), another drive member (1240), and a cable (1191); the other wheel (1220) is arranged in a pair with the wheel (1120) and is rotatably connected to the other housing (1210) around the first axis (1141), and the other wheel (1220) has a other parking hole on the side facing the other housing (1210); The other pin (1230) is provided in the other housing (1210) and can move axially between its parked position and non-parked position, and in the parked position of the other pin (1230), the other pin is inserted into the other parking hole to prevent the other wheel (1220) from rotating, and in the non-parked position of the other pin (1230), the other pin is removed from the other parking hole to allow the other wheel (1220) to rotate; The other driving member (1240) is rotatably connected to the other housing (1210) and is connected to one end of the other pin (1230) by abutting it, and the other driving member (1240) has an other parking portion (1245) protruding toward the other wheel (1220) and an other non-parking portion (1246) recessed away from the other wheel (1220) on the side abutting the other pin (1230), and when the other driving member (1240) rotates, the other parking portion (1245) or the other non-parking portion (1246) abuts against the other pin (1230) to move the other pin (1230) to the other parking position or the other non-parking position, The cable (1191) has one end connected to a cable second end connection portion (1241) provided on the outer periphery of the other driving member (1240), and the other end is connected to the driving member (1140) via a link mechanism, and when one of the parking portions (1145) of the driving member (1140) abuts against the pin (1130) and enters its parking position, the driving member (1140) moves the other driving member (1240) via the link mechanism and the cable (1191), whereby the other driving member (1240) rotates to the other parking portion (1245) and abuts against the other pin (1230) to enter the parking position. A wheel lock structure according to any one of claims 12 to 15.

17. The link mechanism includes a link slider (1170) and a link sheet (1180), The link slider (1170) is disposed in the housing (1110) and can slide relative to the wheel (1120) in a direction perpendicular to the first axis (1141), and the other end of the cable (1191) is connected to a cable first end connection portion (1171) of the link slider (1170); The link sheet (1180) is disposed in the housing (1110) and can slide in a direction parallel to the first axis (1141) relative to the wheel (1120), and the link sheet (1180) and the link slider (1170) engage with each other at an inclined surface; The link mechanism is configured such that, when one parking section (1145) abuts against the pin (1130), the other parking section (1145) abuts against the link sheet (1180), thereby causing the link sheet (1180) to slide in a direction parallel to the first axis (1141), the link sheet (1180) slides the link slider (1170) vertically in the axial direction by inclined surface engagement, and the link slider (1170) rotates the other drive member (1240) via the cable (1191).

17. A wheel lock arrangement according to claim 16.

18. A stroller, Stroller frame (1300) and A stroller seat that supports the stroller frame (1300); Front and rear wheels arranged under the stroller frame (1300); The wheel lock structure according to any one of claims 12 to 17, The wheel is the front wheel or the rear wheel. A stroller characterized by the above.

19. A stroller including a stroller frame (2100), a storage crate (2200), and a locking mechanism (2300), The storage crate (2200) is removably disposed on the stroller frame (2100) and includes a storage basket (2210) and a handlebar (2200), the handlebar (2200) being rotatably connected to the storage basket (2210); The handlebar (2200) can be rotated to a first rotation position to place the locking mechanism (2300) in a locked state in which the storage crate (2200) and the stroller frame (2100) are locked relative to each other, and the handlebar (2200) can be rotated to a second rotation position to place the locking mechanism (2300) in an unlocked state in which the storage crate (2200) and the stroller frame (2100) are unlocked relative to each other. A stroller characterized by the above.

20. The locking mechanism (2300) includes an actuating member (2320), a first locking portion, and a second locking portion, the actuating member (2320) being fixed to the handlebar (2200), the first locking portion being provided on the storage crate (2200), and the second locking portion being provided on the stroller frame (2100), and the handlebar (2200) rotating to rotate the actuating member (2320), whereby the actuating member (2320) drives the first locking portion and the second locking portion to lock or unlock each other.

20. The stroller of claim 19.

21. the actuating member (2320) comprises an inclined push rib (2322c), the first locking portion is an engagement block (2370), and the second locking portion is an engagement hole (2312), and when the handlebar (2200) rotates to the second rotation position, the handlebar (2200) rotates the actuating member (2320), thereby driving the push rib (2322c) to disengage the engagement block (2370) from the engagement hole (2312); 21. The stroller according to claim 20.

22. The locking mechanism (2300) further includes a pushing block (2360) fixedly connected to the engagement block (2370), the pushing block (2360) being capable of abutting the push rib (2322c).

22. The stroller of claim 21.

23. The lock mechanism (2300) further includes a first reset member (2380), and the first reset member (2380) constantly biases the engagement block (2370) to move in a direction in which the engagement block (2370) engages with the engagement hole (2312).

23. The stroller according to claim 21 or 22.

24. The locking mechanism (2300) further includes a fixed sheet (2310) provided on the stroller frame (2100) and a connecting sheet (2330) provided on the storage basket (2210), the engagement hole (2312) is provided on the fixed sheet (2310), and the engagement block (2370) is movably provided on the connecting sheet (2330). The stroller according to any one of claims 21 to 23.

25. said fixing sheet (2310) comprises a cooperating bulge (2313) and said connecting sheet (2330) comprises a cooperating slot (2331) which matches said cooperating bulge (2313); 25. The stroller of claim 24.

26. The locking mechanism (2300) further includes a first reset member (2380) and a connection cover (2350), the first reset member (2380) is located between the connection cover (2350) and the connection sheet (2330), the connection sheet (2330) has an accommodating hole (2332), both ends of the first reset member (2380) abut against the connection cover (2350) and the engagement block (2370), respectively, and the engagement block (2370) is movably provided in the accommodating hole (2332); 26. The stroller according to claim 24 or 25.

27. the locking mechanism (2300) further includes a positioning member (2390), the positioning member (2390) is fixedly connected to the connecting sheet (2330), the actuating member (2320) is rotatably connected to the positioning member (2390), and the actuating member (2320) can be fixed in a plurality of positions relative to the positioning member (2390); The stroller according to any one of claims 24 to 26.

28. The positioning member (2390) has at least one connection hole (2391), and the connection sheet (2330) has at least one connection arm (2392) that can cooperate with the connection hole (2391) and be fixed.

28. The stroller of claim 27.

29. the positioning member (2390) comprises at least one first positioning portion, and the connecting sheet (2330) comprises a plurality of second positioning portions in a circumferential direction, and the plurality of second positioning portions can cooperate with the first positioning portion along the circumferential direction; or the connecting sheet (2330) comprises at least one first positioning portion, and the positioning member (2390) comprises a plurality of second positioning portions in a circumferential direction, and the plurality of second positioning portions can cooperate with the first positioning portion along the circumferential direction.

29. The stroller according to claim 27 or 28.

30. The positioning member (2390) includes at least one elastic arm (2392), the elastic arm (2392) includes at least one positioning protrusion (2392a), and the connection sheet (2330) includes a plurality of positioning recesses (2322b) in the circumferential direction that can cooperate with the positioning protrusion (2392a); 30. The stroller according to any one of claims 27 to 29.

31. The stroller frame (2100) includes a handrail support bar (2110), and the fixed seat (2310) is slidably mounted on the handrail support bar (2110). The stroller according to any one of claims 24 to 30.

32. The storage basket (2210) includes a connection frame (2211) and a cover fabric sleeved on the connection frame (2211); The stroller according to any one of claims 19 to 31.

33. The connection frame (2211) includes a first connection tube (2211a) and a second connection tube (2211b), and two locking mechanisms (2300) are located on the left and right sides of the stroller frame (2100), respectively. The connection pins (2340) are disposed on both sides of the connection sheet (2330) of each locking mechanism (2300), and are inserted into one end of the first connection tube (2211a) and one end of the second connection tube (2211b) to connect them.

33. The stroller of claim 32.

34. A stroller, A stroller frame (2100) including a front leg support bar (2120); A storage crate (2200) provided on the front leg support bar (2120), A stroller characterized by the above.

35. The storage crate (2200) includes a connection frame (2211) and a cover fabric sleeved on the connection frame (2211), and the connection frame (2211) is provided on the front foot support bar (2120); 35. The stroller of claim 34.

36. The connection frame (2211) is rotatably connected to the front foot support bar (2120).

36. The stroller of claim 35.

37. The stroller further includes a first engagement sheet (2400) and a second engagement sheet (2500), the first engagement sheet (2400) being provided on the front leg support bar (2120), and the second engagement sheet (2500) being provided on the connection frame (2211); 37. A stroller as claimed in claim 35 or 36.

38. One end of the first engagement sheet (2400) is rotatably connected to the second engagement sheet (2500), and the other end of the first engagement sheet (2400) is rotatably connected to the front foot support bar (2120).

38. The stroller of claim 37.

39. The first engagement seat (2400) includes a turntable (2410) pivotally attached to the front leg support bar (2120), the turntable (2410) having a plurality of first cooperating parts in a circumferential direction, and the stroller further includes a second cooperating part movably provided on the front leg support bar (2120), the second cooperating part being capable of cooperating with any of the first cooperating parts.

39. The stroller according to claim 37 or 38.

40. The first cooperating part is a cooperating slot (2411) provided in the turntable (2410), and the second cooperating part is a cooperating pin (2600) movably provided on the front foot support bar (2120).

40. The stroller of claim 39.

41. The stroller further includes a second reset member (2700), the second reset member (2700) constantly biasing the cooperating pin (2600) to move in a direction closer to the cooperating slot (2411).

41. The stroller of claim 40.

42. The first engagement sheet (2400) and the second engagement sheet (2500) are detachably connected. The stroller according to any one of claims 37 to 41.

43. The stroller frame (2100) further includes a first sitting assembly (2150), a second sitting assembly (2160), two handrail support bars (2110), and two rear leg support bars (2130), the first sitting assembly (2150) being provided between the two handrail support bars (2110), and the second sitting assembly (2160) being provided between the two rear leg support bars (2130). The stroller according to any one of claims 34 to 41.

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