CN218431571U - Folding locking device and scooter - Google Patents

Abstract

The utility model discloses a folding locking device and a scooter, which comprises a fixed part, a rotating part, a clamping part and a unlocking part, wherein the fixed part is provided with a clamping part; the rotating part is rotatably connected with the fixed part and is provided with a first position and a second position; the clamping piece is rotatably connected with the rotating piece, and at a first position, the clamping piece is suitable for being clamped and locked with the clamping part when the rotating piece is subjected to acting force in a first direction so as to block and limit one side of the rotating piece, and the other side of the rotating piece is blocked and limited with the fixing piece; the unlocking piece is connected with the clamping piece, and can apply acting force in the second direction to the clamping piece so as to unlock the clamping piece and the clamping stop part and enable the rotating piece to be switched from the first position to the second position. The utility model discloses a folding locking device can satisfy folding operation requirement on the one hand, and on the other hand can guarantee to rotate a stability of in use, has improved the condition that rotates and rock easily, is being applied to the car of riding instead of walk after, can promote the security of riding.

Description

Folding locking device and scooter

Technical Field

The utility model relates to a tool technical field rides instead of walk, specifically relates to a folding locking device and an applied this folding locking device's car of riding instead of walk.

Background

The electric scooter, the electric balance car and other mobility scooter are more and more popular among consumers due to simple operation and convenient use. In order to facilitate the storage of the scooter, the stand pipe of the scooter is usually designed to be foldable, and when the scooter is ridden, the stand pipe is erected, and when the scooter is required to be stored, the stand pipe is bent.

However, in the related art, the locking of the stand pipe during riding is mainly realized through the matching of the buckle and the clamping groove, and due to factors such as processing precision, use abrasion and the like, the stand pipe has the problem of serious shaking in use, is not beneficial to the safe riding of the scooter, and even can cause safety accidents in serious conditions.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent.

Therefore, the embodiment of the utility model provides a folding locking device, this folding locking device can satisfy folding operation requirement on the one hand, and on the other hand can guarantee to rotate a stability of in use, has improved the condition that rotates the easy rock, is being applied to the car of riding instead of walk after, can promote the security of riding.

The embodiment of the utility model provides a still provide an use above-mentioned folding locking device's car of riding instead of walk.

The utility model discloses folding locking device includes:

a fixing member provided with a locking portion;

the rotating part is rotatably connected with the fixed part and is provided with a first position and a second position;

the clamping piece is rotatably connected with the rotating piece, and is suitable for being clamped and locked with the clamping part to clamp and limit one side of the rotating piece when the rotating piece is subjected to an acting force in a first direction at the first position, and the other side of the rotating piece is clamped and limited with the fixing piece;

and the unlocking piece is connected with the clamping piece, and can apply acting force in a second direction to the clamping piece so as to release the clamping piece and the locking part and enable the rotating piece to be switched from the first position to the second position.

The utility model discloses folding locking device can satisfy folding operation requirement on the one hand, and on the other hand can guarantee to rotate a stability of in use, has improved the condition that rotates and rock easily, is being applied to the car of riding instead of walk after, can promote the security of riding.

In some embodiments, the fold-locking device comprises an elastic element acting between the rotary element and the detent, the elastic element being adapted to reset the detent so that the detent can remain locked with the catch in the first position.

In some embodiments, the locking member includes a locking section and a connecting section, one end of the connecting section is rotatably connected to the rotating member, the other end of the connecting section is connected to the locking section, the locking section is adapted to be locked by the locking portion, one end of the elastic member is connected to the connecting section, and the other end of the elastic member is connected to the rotating member.

In some embodiments, the rotating member includes a web connected between the first wing and the second wing, the first wing and the second wing are oppositely disposed, and the detent each fit between the first wing and the second wing.

In some embodiments, the elastic member is disposed outside the rotating member, and the elastic member is connected to the locking member by a fastening member, and one of the first wing plate and the second wing plate is provided with an arc-shaped hole, and the fastening member is slidably fitted in the arc-shaped hole.

In some embodiments, an outer wall surface of one of the first wing plate and the second wing plate is provided with a fitting groove, the elastic member is fitted in the fitting groove, and the arc-shaped hole is provided at a bottom of the fitting groove.

In some embodiments, the locking part is provided with a blocking surface, and an included angle α between any tangent of the blocking surface and the first direction is an acute angle, so that the clamping piece can slide along the blocking surface and be hooked and matched with the locking part when being acted by the acting force in the first direction.

In some embodiments, a rotation center is formed at a connection position of the locking member and the rotation member, the blocking surface extends along a circumferential direction of the rotation center, and a distance between the blocking surface and the rotation center is gradually increased along an extending direction of the blocking surface.

In some embodiments, the distance L between the stop face and the center of rotation is 24.75 mm to 25.25 mm.

In some embodiments, the unlocking element is connected to the blocking element via an adjusting element, which is arranged on the blocking element and is adjustable in position relative to the blocking element, so that the tightness of the unlocking element is adjustable.

In some embodiments, the folding and locking device includes a fixing frame, the fixing frame is connected to the fixing frame, a clamping groove is formed on the fixing frame, and in the second position, the clamping member fits in the clamping groove.

In some embodiments, the folding locking device includes a limiting member disposed on the rotating member and adapted to be stopped by the fixing member to limit the relative rotation between the rotating member and the fixing member when the rotating member is in the first position, and the position of the limiting member relative to the rotating member is adjustable to adjust the inclination angle of the rotating member when the rotating member is in the first position.

In some embodiments, the folding and locking device includes a mounting bracket detachably disposed on the rotating member, and the limiting member is screw-fitted to the mounting bracket.

The utility model discloses car of riding instead of walk includes folding locking device as in above-mentioned arbitrary embodiment.

In some embodiments, the scooter comprises a front fork support, a front fork body and a handle stem, the front fork body is rotatably assembled with the front fork support, the handle stem is connected with the front fork body, the front fork support forms the fixed member, the front fork body forms the rotating member, one end of the unlocking member is connected with the clamping member, and the other end of the unlocking member is connected with the handle stem.

Drawings

Fig. 1 is a front side perspective view of a scooter according to an embodiment of the present invention.

Fig. 2 is a perspective view of the fixing member of the folding and locking device of fig. 1.

Fig. 3 is a perspective view of a rotary member of the folding locking device of fig. 1.

FIG. 4 is an exploded view of the unlocking member and the detent member of the folding locking device of FIG. 1.

Fig. 5 is a schematic view of the mounting bracket of the fold-over latch of fig. 1.

Fig. 6 is a schematic diagram of the rotating member switching to the first position according to the embodiment of the present invention.

Fig. 7 is a schematic diagram of the rotating member switching to the second position according to the embodiment of the present invention.

Fig. 8 is a side view of a rotating member of a fold-down locking device in a first position according to an embodiment of the present invention.

Fig. 9 is a side view of the rotating member of the fold-down locking mechanism of an embodiment of the present invention in a second position.

Fig. 10 is a schematic view of a folding locking device according to an embodiment of the present invention.

Reference numerals:

folding and locking device 100;

a fixing member 1; a locking part 11; a blocking surface 111;

a rotating member 2; a web 21; a first wing plate 22; a fitting groove 221; an arcuate aperture 222; a first connection bit 223; a second connection bit 224; a second wing plate 23;

a clamping part 3; a card position section 31; a connecting section 32;

unlocking member 4;

an elastic member 5;

an adjusting member 6;

a fixed frame 7; a card slot 71;

a limiting member 8;

a mounting frame 9;

a stem 200;

a wheel 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 10, a folding locking device 100 according to an embodiment of the present invention includes a fixed member 1, a rotating member 2, a locking member 3, and an unlocking member 4.

The fixing member 1 is provided with a locking portion 11. For example, the fixing member 1 may be a member that is not moved in the in-use position, and the fixing member 1 may be a base, a frame body, or the like. As shown in fig. 2, the locking portion 11 may be integrally formed with the fixing member 1, and the locking portion 11 may be located at the tip end of the fixing member 1.

The rotating member 2 is rotatably connected to the fixed member 1, and the rotating member 2 has a first position and a second position. For example, the rotation element 2 may be fitted on the outer circumferential side of the fixed element 1, and the rotation element 2 may be pivotally assembled with the fixed element 1, the rotation element 2 having a first position and a second position during rotation of the rotation element 2 with respect to the fixed element 1.

It should be noted that, when the folding and locking device 100 is applied to a scooter, as shown in fig. 1, the fixed member 1 may be assembled with the wheel 300, the rotating member 2 may be pivotally assembled with the fixed member 1, and a vertical pipe of the scooter may be fixedly connected with the rotating member 2. Thus, when the rotor 2 is switched to the first position, as shown in fig. 6, the riser of the scooter is now substantially vertical and the scooter is suitable for riding. When the rotating member 2 is switched to the second position, as shown in fig. 7, the vertical tube of the scooter extends substantially forward and backward and is substantially parallel to the frame of the scooter, and the scooter is adapted to be stored.

The detent member 3 is rotatably connected to the rotating member 2, and in the first position, the detent member 3 is adapted to be tightly locked with the locking portion 11 to stop and limit one side of the rotating member 2 when the rotating member 2 is applied with a force in a first direction (the first direction may be substantially a front-back direction), and the other side of the rotating member 2 is stopped and limited with the fixing member 1.

For example, when the rotating member 2 is switched from the second position to the first position, the rotating member 2 can swing forward, and after swinging to the first position, a part of the rotating member 2 can be stopped and limited with a part of the fixing member 1, so that the rotating member 2 can be limited from continuing to swing forward.

Meanwhile, a part of the detent member 3 may be rotated to the front side of the locking portion 11 of the fixed member 1, whereby, when the rotation member 2 is applied with a rearward force, the detent member 3 may be brought into hooking engagement with the fixed member 1, so that the condition that the rotation member 2 swings rearward may be restricted.

The unlocking member 4 is connected to the locking member 3, and the unlocking member 4 can apply a force in a second direction (the second direction may be substantially a vertical direction) to the locking member 3 to unlock the locking member 3 and the locking portion 11 and allow the rotating member 2 to be switched from the first position to the second position. It should be noted that, in the use process, as long as the rotating member 2 has a component force action backwards, the blocking member 3 can be tightly fitted with the locking part 11, and in the riding process, the human body is located behind the rotating member 2 and always has a backwards acting force on the rotating member 2, so that the situation that the blocking member 3 is separated from the locking part 11 is avoided.

For example, unlocking piece 4 can be wire rope, unlocking piece 4's one end can be fixed continuous with screens piece 3, when needs switch over rotation piece 2 to the second place from the primary importance, can at first draw unlocking piece 4, unlocking piece 4 can upwards stimulate screens piece 3, and unlocking piece 4 can not produce backward component effect at the in-process of upwards pulling, thereby the complex problem of screens piece 3 and clamping part 11 chucking has been avoided, make screens piece 3 can be along contacting the chucking locking with the tangent direction contact of clamping part 11. After the detent 3 and the locking part 11 are separated, the rotor 2 is driven to swing backward, so that the rotor 2 can be switched from the first position to the second position.

The utility model discloses folding locking device 100 has satisfied folding operation requirement through rotating swing of piece 2 for mounting 1. Secondly, in use, a human body can exert a backward component force effect on the rotating part 2, due to the fact that the clamping part 3 is connected with the rotating part 2, the clamping part 3 can also generate a backward component force effect, under the action of the component force, the clamping part 3 can be in clamping fit with the clamping and stopping part 11, the situation that the rotating part 2 swings backward is avoided, the rotating part 2 can be stopped with the fixing part 1, the situation that the rotating part 2 swings forward is avoided, therefore, the swinging displacement of the rotating part 2 in the front and back directions is limited, the structural stability of the rotating part 2 in use is guaranteed, the situation that the rotating part 2 is easy to swing is improved, and the riding safety is improved.

In some embodiments, the fold-locking device 100 comprises an elastic element 5, the elastic element 5 acting between the rotary element 2 and the detent element 3, the elastic element 5 being adapted to reset the detent element 3 so that the detent element 3 remains clampingly locked with the detent 11 in the first position.

For example, as shown in fig. 3, the elastic member 5 may be a spring, the spring may be a tension spring or a compression spring, one end of the elastic member 5 may be connected to the rotating member 2, the other end of the elastic member 5 may be connected to the locking member 3, and in use, the elastic member 5 may apply an acting force to the locking member 3, so that the locking member 3 may be normally attached to and contacted with the locking portion 11, thereby preventing the locking member 3 from being easily separated from the locking portion 11 during bumping, and ensuring stability of locking.

In some embodiments, the locking element 3 comprises a locking section 31 and a connecting section 32, one end of the connecting section 32 is rotatably connected to the rotating element 2, the other end of the connecting section 32 is connected to the locking section 31, the locking section 31 is adapted to be locked by the locking portion 11, one end of the elastic element 5 is connected to the connecting section 32, and the other end of the elastic element 5 is connected to the rotating element 2.

As shown in fig. 4, the detent element 3 can be substantially U-shaped, and the detent element 3 can comprise a detent section 31 and two connecting sections 32, the two connecting sections 32 being arranged substantially parallel to each other, the detent section 31 being connected between the two connecting sections 32. When assembled, the free ends of the two connecting segments 32 may be pivotally assembled with the rotary member 2 by means of a pivot. One end of the elastic member 5 may be connected to the middle of the connection section 32, and the other end of the elastic member 5 may be connected to the rotation member 2. When the rotating part 2 is switched to the first position, the elastic part 5 can apply a downward force to the connecting section 32, so that the locking section 31 of the locking part 3 can always abut against the locking part 11, thereby achieving the effect of locking.

Alternatively, unlocking element 4 can be connected to the middle of detent section 31.

In some embodiments, the rotation member 2 includes a web 21, a first wing 22 and a second wing 23, the web 21 is connected between the first wing 22 and the second wing 23, the first wing 22 and the second wing 23 are oppositely disposed, and the detent 11 and the detent 3 are both fitted between the first wing 22 and the second wing 23.

As shown in fig. 3, the rotation member 2 may be substantially U-shaped, the first wing plate 22 and the second wing plate 23 are arranged substantially in parallel and oppositely in the left-right direction, and the web 21 is connected between one end of the first wing plate 22 and one end of the second wing plate 23. The other end of the first wing 22 and the other end of the second wing 23 can be pivotally assembled to the fixing member 1. Specifically, the top of the fixed member 1 can fit into a U-shaped slot formed by the rotating member 2, wherein the free end of the first wing 22 and the free end of the second wing 23 can both pivotally fit with the bottom of the fixed member 1 and form a first connection site 223.

Therefore, on the one hand, the compactness of assembling the fixed part 1 and the rotating part 2 can be enhanced, and on the other hand, in the first position, the overall height size of the rotating part 2 and the fixed part 1 can be lower, which is beneficial to lowering the gravity center and enhancing the structural stability.

In some embodiments, the elastic member 5 is disposed outside the rotating member 2, and the elastic member 5 is connected to the locking member 3 by a fastener, and one of the first wing plate 22 and the second wing plate 23 is provided with an arc hole 222, and the fastener is slidably fitted in the arc hole 222.

As shown in fig. 3 and 8, the fixed member 1 may be fitted inside the U-shaped groove formed in the rotation member 2, and the elastic member 5 may be fitted to the left side of the first wing 22. The fastener can be a pin shaft, one end of the fastener can be hinged with the clamping part 3, and the other end of the fastener can be connected with the elastic part 5.

As shown in fig. 8, the arc hole 222 may have an arc shape, and the arc hole 222 may penetrate the first wing plate 22 in the left-right direction. The connection between the detent element 3 and the rotor 2 can form a second connection position 224, and the detent element 3 can pivot about the second connection position 224. The center of the arc hole 222 may be the second connection site 224. The fastener may fit within the arcuate aperture 222.

Therefore, when the clamping part 3 swings relative to the rotating part 2, the fastener can slide in the arc-shaped hole 222, so that the compactness and the structural strength of assembly can be enhanced on one hand, the swinging guidance of the clamping part 3 can be enhanced on the other hand, and the precision of displacement is ensured. In addition, the arc-shaped hole 222 can also play a limiting effect, so that the situation that the amplitude of the clamping part 3 is large in the swinging process is avoided.

In some embodiments, the outer wall surface of one of the first wing plate 22 and the second wing plate 23 is provided with a fitting groove 221, the elastic member 5 is fitted in the fitting groove 221, and the arc-shaped hole 222 is provided at the bottom of the fitting groove 221. As shown in fig. 3, a fitting groove 221 may be provided on an outer wall surface (left wall surface) of first wing plate 22, and an arc-shaped hole 222 is provided in fitting groove 221 and communicates a groove bottom of fitting groove 221 with the right wall surface of first wing plate 22.

Therefore, the elastic member 5 can be assembled in the assembly groove 221, so that the situation that the elastic member 5 protrudes out of the outer wall surface of the first wing plate 22 is avoided, the effect of protecting the elastic member 5 is achieved, the situation that foreign matters interfere with the elastic member 5 is avoided, and the stability of the effect of the elastic member 5 is ensured.

In some embodiments, the stopping portion 11 is provided with a stopping surface 111, and an included angle α between any tangent of the stopping surface 111 and the first direction is an acute angle, so that the blocking member 3 can slide along the stopping surface 111 and be hooked and matched with the stopping portion 11 when being acted by a force in the first direction.

As shown in fig. 2, the blocking surface 111 may be provided at a front side of the locking part 11, the blocking surface 111 may be a curved surface, and a generatrix of the blocking surface 111 may be arranged in the left-right direction. As shown in fig. 10, the blocking surface 111 may be generally sloped in a front-up to back-down direction, and any tangent to the blocking surface 111 forms an included angle α with the first direction, where the included angle α is acute, for example, the included angle α may be constant, and the included angle α may be 85 degrees, 80 degrees, 75 degrees, 70 degrees, and the like.

Therefore, when the clamping piece 3 is subjected to backward acting force, due to the attaching effect of the clamping piece 3 and the blocking surface 111, the clamping piece 3 tends to move downwards, so that the clamping piece 3 can be always clamped and locked with the clamping part 11.

In some embodiments, the joint of the detent member 3 and the rotation member 2 forms a rotation center, the blocking surface 111 extends along a circumferential direction of the rotation center, and a distance between the blocking surface 111 and the rotation center gradually increases along an extending direction of the blocking surface 111.

For example, as shown in fig. 10, the rotation center may be the second connecting position 224, and the locking member 3 may swing around the second connecting position 224. The distance L that blocks face 111 and second connection position 224 can be along from last orientation grow gradually extremely down, from this, at screens 3 wobbling in-process down, screens 3 and the effort that blocks between the face 111 can be bigger and bigger to can strengthen chucking locking effect, further avoided rotating the condition that piece 2 rocked at will.

In some embodiments, the distance L between the stop face 111 and the center of rotation is 24.75 mm to 25.25 mm. As shown in fig. 10, barrier surface 111 has a critical line a, which may be an upper edge line of barrier surface 111. At the critical line a, the distance L between the tangent of the blocking surface 111 and the second connecting location 224 may take a minimum value, for example, 24.75 mm. And at various locations where blocking surface 111 is spaced downwardly away from critical line a, distance L may gradually increase to 25.25 millimeters.

When detent section 31 of detent element 3 is pivoted into a position corresponding to critical line a, detent section 31 can be substantially tangent to stop surface 111 at critical line a, so that detent element 3 is locked more tightly to locking portion 11 when detent element 3 is moved downward, and detent element 3 can be disengaged from locking portion 11 when unlocking element 4 pulls detent element 3 to pivot upward.

In some embodiments, unlocking element 4 is connected to detent element 3 by an adjustment element 6, wherein adjustment element 6 is arranged on detent element 3 and is adjustable in position relative to detent element 3 such that the tightness of unlocking element 4 is adjustable.

As shown in fig. 4, the adjusting member 6 may be fixedly connected to the unlocking member 4 in a manner of screw connection, snap connection, or the like. The adjusting part 6 can be a stud, the adjusting part 6 can be in threaded fit with the clamping section 31 of the clamping part 3, during use, the relative position of the adjusting part 6 and the clamping part 3 can be adjusted through rotating the adjusting part 6, and then the tightening degree of the unlocking part 4 can be adjusted, the correction effect is achieved, the requirement on the machining precision of parts can be reduced, and the assembly is facilitated.

In some embodiments, the folding and locking device 100 includes a fixing frame 7, the fixing frame 7 is connected to the fixing member 1, a slot 71 is provided on the fixing frame 7, and in the second position, the detent member 3 is fitted in the slot 71.

As shown in fig. 1 and 5, the fixing frame 7 may be arc-shaped, and one end of the fixing frame 7 may be fixedly connected with the fixing element 1, and the fixing manner may be a bolt connection. The slot 71 can be disposed on the upper surface of the fixing frame 7, and after the rotating member 2 is switched to the second position, the blocking member 3 can be transversely inserted into the slot 71, thereby achieving the locking and limiting effect.

It should be noted that, under the reset action of the elastic element 5, the blocking element 3 can be always kept in the slot 71, thereby achieving the locking effect.

In some embodiments, the folding locking device 100 includes a limiting member 8, the limiting member 8 is disposed on the rotating member 2 and adapted to be stopped by the fixing member 1 to limit the relative rotation between the rotating member 2 and the fixing member 1 when the rotating member 2 is at the first position, and the position of the limiting member 8 relative to the rotating member 2 is adjustable to enable the tilt angle of the rotating member 2 to be adjustable when the rotating member is at the first position.

As shown in fig. 3, the limiting member 8 may be a bolt, the limiting member 8 may be screwed on the rotating member 2, and after the rotating member 2 is switched to the first position, the end of the limiting member 8 may be stopped against the fixing member 1, thereby limiting the maximum forward swing stroke of the rotating member 2.

In the use, can stretch out the length that rotates piece 2 through rotatory locating part 8 adjustment locating part 8, from this, when the primary importance, prop the length that props up locating part 8 between rotating piece 2 and fixed part 1 and can change, when the length grow of rotating the locating part 8 between piece 2 and the fixed part 1, the inclination of rotating piece 2 at the primary importance can diminish, otherwise can grow to can realize rotating the adjustment of 2 inclination.

In some embodiments, the folding locking device 100 includes a mounting block 9, the mounting block 9 is detachably disposed on the rotating member 2, and the limiting member 8 is threadedly assembled with the mounting block 9. As shown in fig. 9, the mounting bracket 9 may be T-shaped, the mounting bracket 9 may be fixed to the rotation member 2 by screws, and the limiting member 8 may be assembled with the mounting bracket 9 by screw threads. Because the threads of the limiting part 8 and the mounting rack 9 are easy to wear after long-term use, the mounting rack 9 is convenient to overhaul and replace.

The following describes the scooter of the embodiment of the present invention.

The scooter of the embodiment of the present invention includes the folding locking device 100, and the folding locking device 100 may be the folding locking device 100 described in the above embodiments. The scooter can be an electric scooter, an electric balance vehicle, an electric bicycle and other scooters, and certainly can also be other scooters needing to use the folding locking device 100.

In some embodiments, as shown in fig. 8 and 9, the walker comprises a front fork support rotatably assembled with the front fork support, a front fork body 200 connected with the front fork body, the front fork support forming a fixed member 1, the front fork body forming a rotating member 2, an unlocking member 4 connected at one end to a locking member 3, and the unlocking member 4 connected at the other end to the handlebar 200.

The handlebar stem 200 may include a stem and a handlebar stem, one end of the stem may be connected to the front fork, and the other end of the stem may be connected to the handlebar stem. Unlocking piece 4 can be wire rope, and unlocking piece 4's one end can link to each other with screens piece 3, and unlocking piece 4's partly can cooperate in the riser, and unlocking piece 4's the other end can with link to each other violently, violently can be equipped with to dial unlocking structure such as turning round, can play the effect of pulling unlocking piece 4 through unlocking structure to can realize dragging to screens piece 3.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (15)

1. A fold-over latch, comprising:

a fixing member provided with a locking portion;

the rotating part is rotatably connected with the fixed part and is provided with a first position and a second position;

the clamping piece is rotatably connected with the rotating piece, and is suitable for being clamped and locked with the clamping part to clamp and limit one side of the rotating piece when the rotating piece is subjected to an acting force in a first direction at the first position, and the other side of the rotating piece is clamped and limited with the fixing piece;

and the unlocking piece is connected with the clamping piece, and can apply acting force in a second direction to the clamping piece so as to release the clamping piece and the locking part and enable the rotating piece to be switched from the first position to the second position.

2. A fold-locking device as claimed in claim 1, comprising a resilient member acting between the rotary member and the detent, the resilient member being adapted to reset the detent so that the detent is retainable locked with the detent in the first position.

3. The fold-locking device of claim 2 wherein the detent member comprises a detent section and a connecting section, one end of the connecting section is rotatably connected to the rotating member, the other end of the connecting section is connected to the detent section, the detent section is adapted to be locked by the detent, one end of the resilient member is connected to the connecting section, and the other end of the resilient member is connected to the rotating member.

4. The fold-over locking device of claim 3 wherein the rotating member comprises a web connected between the first wing and the second wing, the first wing and the second wing being oppositely disposed, the detent and the detent each fitting between the first wing and the second wing.

5. A fold-over locking device according to claim 4, wherein the resilient member is provided on the outer side of the rotary member and is connected to the catch member by a fastener, one of the first and second wings being provided with an arcuate aperture in which the fastener is slidably fitted.

6. The fold-locking apparatus of claim 5 wherein an outer wall surface of one of the first wing and the second wing is provided with a fitting groove, the resilient member is fitted in the fitting groove, and the arcuate hole is provided at a bottom of the fitting groove.

7. A fold lock according to claim 1, wherein the detent is provided with a blocking surface, any tangent to the blocking surface being at an acute angle to the first direction, such that the detent is slidable along the blocking surface and into hooking engagement with the detent when subjected to the force of the first direction.

8. The fold-locking device of claim 7 wherein the junction of the detent and the rotating member forms a center of rotation, the blocking surface extends circumferentially of the center of rotation, and the distance between the blocking surface and the center of rotation increases progressively along the direction of extension of the blocking surface.

9. The fold-locking device of claim 8 wherein the distance L between the blocking surface and the center of rotation is 24.75 mm to 25.25 mm.

10. The fold locking device of claim 1 wherein the unlocking member is connected to the detent member by an adjustment member, the adjustment member being disposed on the detent member and being positionally adjustable relative to the detent member to allow for adjustment of the tightness of the unlocking member.

11. The fold-over locking device of claim 1 comprising a mounting bracket, said mounting bracket being connected to said securing member, said mounting bracket having a detent, said detent fitting within said detent in said second position.

12. The folding and locking device of any one of claims 1 to 11, comprising a limiting member disposed on the rotating member and adapted to be stopped by the fixed member to limit the relative rotation of the rotating member and the fixed member when in the first position, wherein the position of the limiting member relative to the rotating member is adjustable to adjust the tilt angle of the rotating member when in the first position.

13. The fold-over locking device of claim 12 including a mounting bracket removably mounted to the rotatable member, the retaining member being threadably mounted to the mounting bracket.

14. A scooter, characterized in that it comprises a fold-over locking device according to any of claims 1-13.

15. The walker of claim 14 including a front fork support, a front fork body and a handle, said front fork body pivotally mounted to said front fork support, said handle attached to said front fork body, said front fork support forming said fixed member, said front fork body forming said pivoting member, said release member attached at one end to said detent member and said release member attached at an opposite end to said handle.

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