CN206938832U - Rotating assembly and foldable children's trolley with same - Google Patents

Abstract

The utility model discloses a rotating assembly and have its folding children's handcart, rotating assembly includes: a first rotating member; the second rotating piece is pivoted to one side of the first rotating piece and provided with a matching groove, and the matching groove comprises a locking groove and an unlocking groove which are communicated with each other; the locking mechanism comprises a trigger piece and a first locking piece, the trigger piece is movably arranged on the first rotating piece between a first position and a second position, and when the trigger piece is positioned at the first position, the free end of the first locking piece is matched in the locking groove to lock the position of the first rotating piece relative to the second rotating piece; when the trigger piece is triggered to move from the first position to the second position, the free end of the first locking piece is matched in the unlocking groove, and the first rotating piece is unlocked so that the first rotating piece can rotate relative to the second rotating piece. According to the utility model discloses a rotating assembly, simple structure, the unblock is convenient to can simplify folding operation process.

Description

Rotating assembly and foldable children's trolley with same

technical field

The utility model relates to a rotating assembly and a foldable children's trolley with the rotating assembly.

Background technique

Vehicles such as bicycles, scooters, and children's trolleys are generally equipped with folding mechanisms, so that storage space can be saved and it is convenient to carry out. However, the structure design of the folding mechanism in the prior art is complex and the folding operation is difficult.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the utility model proposes a rotating assembly, which has a simple structure and is easy to unlock, thereby simplifying the folding operation process and improving user experience.

The utility model also proposes a foldable children's trolley with the above-mentioned rotating assembly.

The rotating assembly according to the embodiment of the first aspect of the present invention includes: a first rotating member; a second rotating member, the second rotating member is pivotally connected to one side of the first rotating member, and the second rotating member One side adjacent to the first rotating member is provided with a matching groove, the matching groove includes a locking groove and an unlocking groove communicating with each other; a locking mechanism, the locking mechanism includes a trigger and a first trigger connected to the trigger a locking member, the triggering member is movably arranged on the first rotating member between a first position and a second position, and when the triggering member is in the first position, the first locking The free end of the trigger member fits in the locking groove to lock the position of the first rotating member relative to the second rotating member; when the trigger member is triggered to move from the first position to the second position, the free end of the first locking member fits in the unlocking groove, and the first rotating member is unlocked so that the first rotating member can rotate relative to the second rotating member.

According to the rotating assembly of the embodiment of the utility model, by controlling the movement of the trigger member between the first position and the second position, the cooperation between the first locking member and the locking groove and the unlocking groove can be controlled, thereby realizing the first The locking and unlocking of the position of the rotating member relative to the second rotating member, the rotating assembly has a simple structure, and the locking and unlocking of the rotating assembly is easy to operate, thereby simplifying the structure of the folding mechanism and facilitating the folding operation process of the folding mechanism, thereby improving user experience.

In addition, the rotating assembly according to the embodiment of the utility model may also have the following additional technical features:

According to an embodiment of the present invention, the unlocking groove is formed in an arc shape, and the locking groove is arranged at one end of the unlocking groove and extends along the radial direction of the unlocking groove.

According to an embodiment of the present invention, the first rotating member is provided with a first positioning member, and the first positioning member is provided with a locking groove extending along the length direction of the locking groove and penetrating through the first positioning member in the thickness direction. A position-limiting elongated hole of a locator, the position-limiting elongated hole has a first abutting portion and a second abutting portion in its length direction, and the triggering element is arranged at a position far away from the first locating element. On one side of the two rotating parts, the free end of the first locking part fits in the matching groove after passing through the long hole, when the trigger part is respectively located at the first position and the second position When in the second position, the first locking member abuts against the first abutting portion and the second abutting portion respectively.

Optionally, a second positioning member rotatably connected to the first positioning member is provided inside the second rotating member, and the second positioning member is provided with an escape notch for avoiding the matching groove.

According to an embodiment of the present invention, ribs are provided on a side of the second rotating member adjacent to the first rotating member, and the rotating assembly further includes: a third rotating member, the third rotating member pivotally Connected to the side of the first rotating member away from the second rotating member; the second locking member, the second locking member has a first mating end and a second mating end, the second locking The piece is passed through the first rotating member and the first matching end and the second matching end protrude from the first rotating member respectively, wherein the first matching end can stop against the rib slides on or away from the rib, and when the first mating end abuts against the rib, the second mating end presses against the third rotating member to rotate the third The position of the first rotating member is locked relative to the first rotating member. When the first matching end slides away from the rib, the second matching end is separated from the third rotating member to unlock the third rotating member. The third rotating member can rotate relative to the first rotating member.

Optionally, the rib is arranged on the edge of the unlocking slot and extends along the extending direction of the unlocking slot, when the trigger is at the first position, the first mating end stops against the unlocking slot. On the raised rib, when the trigger member is in the second position, the first matching end can slide away from the raised rib.

Optionally, the third rotating member is provided with a locking groove open to the first rotating member, and when the first matching end abuts against the raised rib, the second matching end engages. It is arranged in the snap-in groove.

Optionally, a clip is provided on the third rotating member, the clip groove is formed on the clip, and a spring is provided between the clip and the third rotating member.

Optionally, the third rotating member is provided with an assembly groove, the clip is arranged in the assembly groove, and the spring is arranged on the clip and the bottom wall of the assembly groove between.

The foldable children's trolley according to the embodiment of the second aspect of the utility model includes: a frame, the frame includes a push rod and a front foot frame; according to the rotating assembly of the embodiment of the first aspect of the utility model, the first The rotating member is connected with the push rod, and the second rotating member is connected with the front leg.

According to the foldable children's trolley according to the embodiment of the utility model, by setting the rotating assembly according to the above-mentioned first aspect embodiment of the utility model, the children's trolley has all the advantages of the above-mentioned rotating assembly, the structure of the children's stroller is simple and the folding operation is convenient , which can improve the overall product quality of children's strollers and enhance user experience.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a children's trolley according to an embodiment of the present invention (wherein the children's trolley is in an unfolded state);

Fig. 2 is a schematic structural view of a children's trolley according to an embodiment of the present invention (wherein the children's trolley is in a folded state);

Fig. 3 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;

Figure 4 is an exploded view (from an angle) of the rotating assembly shown in Figure 3;

Figure 5 is an exploded view (from another angle) of the rotating assembly shown in Figure 3;

Figure 6 is an exploded view (from yet another angle) of the rotating assembly shown in Figure 3;

Figure 7 is an exploded view of a partial structure of the rotating assembly shown in Figure 3;

Fig. 8 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Fig. 9 is a partial structural schematic view of the rotating assembly shown in Fig. 3;

Fig. 10 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Fig. 11 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Fig. 12 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Fig. 13 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Fig. 14 is a partial structural schematic diagram of the rotating assembly shown in Fig. 3;

Reference signs:

rotating assembly 100;

The first rotating part 1; the first positioning part 11; the first body 111; the first connecting part 112;

Limiting long hole 12; first stop portion 121; second stop portion 122;

Turn the protruding shaft 13; limit notch 131;

The second rotating member 2; the matching groove 21; the locking groove 211; the first end 2111; the second end 2112; the unlocking groove 212;

The second positioning part 22; the avoidance gap 221; the second body 222; the second connecting part 223;

Rib 23; sliding end 231;

The third rotating member 3; the clamping member 31; the clamping groove 311; the assembly groove 32; the rotating collar 33; the limit protrusion 331;

Locking mechanism 4; Trigger piece 41; Positioning hole 411;

the first locking member 42;

The second locking member 43; the first mating end 431; the second mating end 432;

The first pivot hole 51; the second pivot hole 52; the matching hole 53; the connection hole 54;

Positioning column 61; Thread positioning hole 611; Positioning column 62;

spring 71; spring 72;

Children's trolley 200; push rod 201; front foot frame 202; dinner plate frame 203; front wheel 204;

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The rotating assembly 100 according to the embodiment of the first aspect of the present utility model will be described below with reference to FIGS. 1-14 . First of all, it should be noted that the rotating assembly 100 can be used in folding mechanisms, such as bicycles, scooters, and children's trolleys 200. Folding is described as an example, but the present application is not limited thereto.

As shown in FIGS. 3-14 , the rotating assembly 100 according to the embodiment of the first aspect of the present invention includes: a first rotating member 1 , a second rotating member 2 and a locking mechanism 4 .

The second rotating member 2 is pivotally connected to one side of the first rotating member 1, and the side of the second rotating member 2 adjacent to the first rotating member 1 is provided with a matching groove 21, and the matching groove 21 includes a locking groove 211 and an unlocking groove communicating with each other. slot 212, the locking mechanism 4 includes a trigger piece 41 and a first locking piece 42 connected to the trigger piece 41, the trigger piece 41 is movably arranged on the first rotating piece 1 between the first position and the second position, also That is to say, the triggering part 41 is arranged on the first rotating part 1 and the triggering part 41 can move between the first position and the second position. When the triggering part 41 is in the first position, the free end of the first locking part 42 fits In the locking groove 211 to lock the position of the first rotating member 1 relative to the second rotating member 2; when the trigger member 41 is triggered to move from the first position to the second position, the free end of the first locking member 42 fits In the unlocking slot 212 , the first rotating member 1 is unlocked so that the first rotating member 1 can rotate relative to the second rotating member 2 .

Specifically, the first locking member 42 is arranged on the triggering member 41, and when the triggering member 41 moves between the first position and the second position, the triggering member 41 will drive the first locking member 42 to move accordingly, When the trigger member 41 is at the first position, the free end of the first locking member 42 fits in the locking groove 211, and in the direction in which the first rotating member 1 rotates relative to the second rotating member 2, the first locking member 42 The side wall of the locking groove 211 stops against each other, and the first locking member 42 cannot rotate in this rotation direction, thus preventing the first rotating member 1 from rotating relative to the second rotating member 2, and the first rotating member 1 relative to the second rotating member 2 The positions of the two rotating parts 2 are locked.

When the trigger 41 is triggered to move from the first position to the second position, the trigger 41 will drive the first locking member 42 to move from the locking groove 211 to the unlocking groove 212 to cooperate with the unlocking groove 212. In the direction in which the first rotating member 1 rotates relative to the second rotating member 2, the first locking member 42 can rotate in the unlocking groove 212, the first rotating member 1 is unlocked, and the first rotating member 1 can rotate relative to the second rotating member 2, During the rotation of the first rotating member 1 relative to the second rotating member 2, the first rotating member 1 drives the first locking member 42 to rotate together, that is, when the first rotating member 1 rotates relative to the second rotating member 2, the first rotating member 1 The locking member 42 will rotate in the unlocking groove 212 .

By controlling the movement of the trigger member 41 between the first position and the second position, the cooperation between the first locking member 42 and the locking groove 211 and the unlocking groove 212 can be controlled, thereby realizing the relative movement of the first rotating member 1 to the second The locking and unlocking of the position of the rotating member 2, the rotating assembly 100 is simple in structure, and the locking and unlocking operation of the rotating assembly 100 is convenient. The rotating assembly 100 of the present application can be applied in a folding mechanism. The second rotating part 2 can be connected with the second folding part. When the position of the first rotating part 1 relative to the second rotating part 2 is locked, the first folding part and the second folding part are locked in the unfolded state. When a rotating part 1 is unlocked and can rotate relative to the second rotating part 2, the first rotating part 1 rotates relative to the second rotating part 2, thereby realizing the folding of the first folding part relative to the second folding part.

Referring to FIGS. 1-2 , the application of the rotating assembly 100 to the folding mechanism of the stroller 200 as an example will be described below to describe the process of applying the rotating assembly 100 of the present application to realize the folding of the folding mechanism.

As shown in Figures 1-2, the children's trolley 200 includes a vehicle frame, and the vehicle frame includes a push rod 201 and a front foot frame 202 and a meal tray frame 203 that are respectively connected to the push rod 201. The front foot frame 202 is provided with a front wheel 204, and The plate frame 203 is provided with a dinner plate 205, wherein the push rod 201 and the front foot frame 202 can be connected through the above-mentioned rotating assembly 100, specifically, one of the push rod 201 and the front foot frame 202 is connected with the first rotating member 1, and the push rod 201 The other one of the front legs 202 is connected to the second rotating member 2 , here, the push rod 201 is connected to the first rotating member 1 , and the front leg 202 is connected to the second rotating member 2 as an example for illustration.

When the stroller 200 is in the unfolded state, the trigger member 41 is located at the first position, and the free end of the first locking member 42 fits in the locking groove 211, thereby rotating the first rotating member 1 relative to the second rotating member 2. The position is locked, the first rotating part 1 cannot rotate relative to the second rotating part 2, because the first rotating part 1 is connected with the push rod 201, and the second rotating part 2 is connected with the front foot frame 202, so that the first rotating part 1 is locked At this time, the positions of the push rod 201 and the front leg frame 202 are correspondingly locked, and the push rod 201 and the front leg frame 202 are locked in the unfolded position for use.

When it is necessary to store and carry the children's trolley 200, in order to reduce the storage space and make it easy to carry, it is necessary to fold the children's trolley 200 to reduce the volume of the children's trolley 200. At this time, the trigger 41 is triggered by the trigger 41. The first position moves toward the second position. At this time, the first locking member 42 will move from the locking groove 211 to the unlocking groove 212 to cooperate with the unlocking groove 212. At this time, the first locking member can slide in the unlocking groove 212, and the first rotating member 1 is unlocked, the first rotating member 1 can rotate relative to the second rotating member 2, so that the push rod 201 connected with the first rotating member 1 can rotate relative to the front leg 202 connected with the second rotating member 2, that is, The push rod 201 can be folded relative to the front leg frame 202 . When the first rotating member 1 is unlocked, the push rod 201 can be automatically folded relative to the front leg frame 202 under the action of gravity, of course, the user can also manually rotate the push rod 201 to fold relative to the front leg frame 202 .

Wherein, when the rotating assembly 100 is used for the children's trolley 200, the triggering mode of the trigger member 41 can be selected arbitrarily according to actual needs, for example, the push rod 201 is provided with a handle 206 for retracting the cart, and the handle 206 for retracting the cart and the trigger member 41 They are connected by a wire rope. Optionally, the wire rope can be accommodated in the push rod 201, and the wire rope can be driven to move by turning the handle 206, so that the trigger 41 can be driven to move from the first position to the second position, thereby triggering the trigger 41. Simple structure and convenient operation. Further, the wire rope can be connected to the handle 206 through a return spring, so that when the handle 206 is released to unfold the baby stroller 200, the wire rope automatically resets under the action of the return spring, so that the trigger 41 returns to the first position , the baby stroller 200 is locked in the unfolded position, so that the trigger 41 can automatically reset after being triggered, thereby further simplifying the locking and unlocking process of the folding mechanism and making the operation more convenient.

According to the rotating assembly 100 of the embodiment of the present utility model, the cooperation between the first locking member 42 and the locking groove 211 and the unlocking groove 212 can be controlled by controlling the movement of the trigger member 41 between the first position and the second position. In this way, the locking and unlocking of the position of the first rotating member 1 relative to the second rotating member 2 is realized. The structure of the rotating assembly 100 is simple, and the locking and unlocking of the rotating assembly 100 is easy to operate, thereby simplifying the structure of the folding mechanism and facilitating the folding of the folding mechanism. operation process to improve user experience.

In one embodiment of the present utility model, as shown in FIG. 5 , FIG. 6 and FIG. 14 , the unlocking slot 212 is formed in an arc shape, and the center of the arc-shaped unlocking slot 212 is the first locking member 42 and the first rotation The rotation center of the component 1 , the locking groove 211 is disposed at one end of the unlocking groove 212 and extends along the radial direction of the unlocking groove 212 . When the trigger member 41 is at the first position, the first locking member 42 fits in the locking groove 211, and the first locking member 42 abuts against an end of the locking groove 211 away from the unlocking groove 212 (as indicated in FIG. 14 . first end 2111), the first rotating member 1 is locked; when the trigger member 41 is triggered to move from the first position to the second position, the first locking member 42 faces from the end of the locking groove 211 away from the unlocking groove 212 One end adjacent to the unlocking groove 212 moves, and when the trigger member 41 moves to the second position, the first locking member 42 moves to the position where the locking groove 211 and the unlocking groove 212 communicate (as indicated by the second end 2112 in FIG. 14 ), at this time the first rotating member 1 is unlocked, the first rotating member 1 can rotate relative to the second rotating member 2, and during the rotation of the first rotating member 1, the first locking member 42 is rotatably fitted in the unlocking groove 212 .

Further, when the first locking member 42 fits in the unlocking groove 212, in the radial direction of the unlocking groove 212, the side walls of the first locking member 42 and the unlocking groove 212 can stop against each other, thereby in radial direction. The first locking member 42 is limited in the direction, thereby preventing the first locking member 42 from shaking when it rotates in the unlocking groove 212 in the circumferential direction, and it can be understood that the first rotating member 1 is relatively The rotatable angle of the rotating member 2 is equal to the rotatable angle of the first locking member 42 in the unlocking groove 212, which is the central angle of the unlocking groove 212, so that the central angle of the unlocking groove 212 can be set according to actual needs during design To meet the actual folding angle needs.

In one embodiment of the present utility model, as shown in Fig. 4-Fig. Through the limit slot 12 of the first positioning member 11 in the thickness direction, the limit slot 12 has a first stop portion 121 and a second stop portion 122 in its length direction, and the trigger member 41 is set at the first position On the side of the part 11 away from the second rotating part 2, the free end of the first locking part 42 passes through the limiting slot 12 and fits in the matching groove 21. When the trigger part 41 is respectively in the first position and the second position When in position, the first locking member 42 respectively abuts against the first abutting portion 121 and the second abutting portion 122 . That is, when the trigger 41 is located at the first position, the first locking member 42 abuts against the first stop portion 121 , and when the trigger 41 is triggered, the trigger 41 drives the first locking member 42 to the limit length. The inside of the hole 12 moves along the length direction of the limiting long hole 12 , and when the trigger member 41 moves to the second position, the first locking member 42 abuts against the second abutting portion 122 . The displacement of the first locking member 42 and the triggering member 41 is limited through the cooperation of the first locking member 42 and the limiting long hole 12 , the structure is simple, and the reliability of locking and rotating of the rotating assembly 100 can be improved.

Optionally, as shown in FIGS. 4-7 , the first locking member 42 can be formed as a pin, the trigger member 41 is provided with a positioning hole 411, and one end of the first locking member 42 fits in the positioning hole 411, Thus, the connection between the triggering part 41 and the first locking part 42 is realized, and the structure is simple and the assembly is convenient.

In an optional example of the present utility model, as shown in Fig. 4-Fig. , the second rotating member 2 is provided with a second positioning member 22, through the rotatable connection between the first positioning member 11 and the second positioning member 22, so as to realize the rotation between the first rotating member 1 and the second rotating member 2 connect. The second positioning piece 22 is provided with an avoidance notch 221 for avoiding the matching groove 21, so that there will be no interference between the second positioning piece 22 and the matching groove 21, and the normal operation between the first locking piece 42 and the matching groove 21 is ensured. Cooperate.

Specifically, as shown in FIGS. 6-7 , the first positioning member 11 may include a flat first body 111 and a strip-shaped first connecting portion 112 connected to the first body 111 , and the second positioning member 22 It may include a flat second body 222 and a strip-shaped second connecting portion 223 connected to the second body 222. The first body 111 is connected to the first rotating member 1, and the second body 222 is connected to the second rotating member 2. The first body 111 is provided with a first pivot hole 51, the second body 222 is provided with a second pivot hole 52, and the pivot shaft (not shown) is rotatably fitted in the first pivot hole 51 and the first pivot hole 51. In the second pivot hole 52 , the rotational connection between the first positioning member 11 and the second positioning member 22 is thereby realized, thereby realizing the pivotal connection between the first rotating member 1 and the second rotating member 2 .

Optionally, both the first body 111 and the first rotating member 1 and the second body 222 and the second rotating member 2 can be connected by threaded fasteners, specifically, the first rotating member 1 and the second rotating member Positioning posts 61 are respectively arranged on the part 2, and threaded positioning holes 611 are provided in the positioning posts, and matching holes 53 are respectively provided on the first body 111 and the second body 222, through which threaded fasteners (such as screws, etc.) pass through the first The fitting hole 53 on the first body 111 fits in the threaded positioning hole 611 on the first rotating member 1, thereby realizing the connection between the first rotating member 1 and the first body 111, which is convenient to connect and has high connection reliability; Specifically, threaded fasteners (such as screws, etc.) pass through the matching holes 53 on the second body 222 and fit in the threaded positioning holes 611 on the second rotating member 2, thereby realizing the second rotating member 2 and the second body. 222, the connection is convenient and the connection reliability is high.

The free ends of the first connecting part 112 and the second connecting part 223 are suitable for being connected with the folder, for example, the first connecting part 112 can be connected with the push rod 201, and the second connecting part 223 can be connected with the front leg 202, specifically, As shown in Figures 4-8, the free end of the first connecting part 112 can be inserted into the push rod 201, and the first connecting part 112 and the push rod 201 are respectively provided with a connecting hole 54, and the connecting piece (not shown in the figure) out) through the connection hole 54 on the first connecting part 112 and the push rod 201 at the same time, so as to connect the first connecting part 112 and the push rod 201 together, the connection is convenient and the connection reliability is high. Similarly, the second connecting portion 223 can be inserted into the front foot frame 202, and the second connecting portion 223 and the front foot frame 202 are respectively provided with connection holes 54, and the connecting piece (not shown) passes through the second connecting portion at the same time. 223 and the connection hole 54 on the front foot frame 202, so as to fix the second connecting part 223 and the front foot frame 202 together, the connection is convenient and the connection reliability is high. Optionally, the connecting member may be a threaded connecting member (such as a screw, a bolt, etc.), and of course it may also be a pin or the like.

In one embodiment of the present utility model, as shown in Fig. 3-Fig. and the second locking member 43, the third rotating member 3 is pivotally connected to the side of the first rotating member 1 away from the second rotating member 2, for example as shown in Fig. 3-Fig. The right side of the first rotating member 1, the third rotating member 3 is arranged on the left side of the first rotating member 1, the second locking member 43 has a first mating end 431 and a second mating end 432, the second locking member 43 wears It is provided on the first rotating part 1 and the first matching end 431 and the second matching end 432 protrude from the first rotating part 1 respectively, wherein the first matching end 431 can stop against the raised rib 23 or slide away from the raised rib 23, And when the first matching end 431 abuts against the rib 23, the second matching end 432 presses against the third rotating member 3 to lock the position of the third rotating member 3 relative to the first rotating member 1. The position of the three rotating parts 3 relative to the first rotating part 1 is locked, and the third rotating part 3 cannot rotate relative to the first rotating part 1. When the first matching end 431 slides away from the rib 23, the second matching end 432 and the third The rotating member 3 is separated to unlock the third rotating member 3 , and the third rotating member 3 can rotate relative to the first rotating member 1 . Optionally, as shown in FIGS. 3-8 , the second locking member 43 may be a pin, which has a simple structure and low cost.

The third rotating member 3 of the rotating assembly 100 can be connected to the third folding member. For example, in the example shown in FIGS. When the position of the first rotating member 1 is locked, the plate rack 203 is in the unfolded and locked state. When the third rotating member 3 is unlocked and can rotate relative to the first rotating member 1, the plate rack 203 passes through the opening of the third rotating member 3. Turning and folding relative to the push rod 201 can further reduce the volume of the children's trolley 200, which is convenient for storage and carrying.

Further, as shown in FIG. 5-FIG. 7 and FIG. 14, the rib 23 is provided on the edge of the unlocking groove 212 and extends along the extending direction of the unlocking groove 212. When the trigger 41 is in the first position, the first mating end 431 At this time, the second mating end 432 is pressed against the third rotating member 3 to lock the position of the third rotating member 3 relative to the first rotating member 1, that is, at this time, the first rotating member 1 and The third rotating part 3 is locked, the first rotating part 1 cannot rotate relative to the second rotating part 2, and the third rotating part 3 cannot rotate relative to the first rotating part 1. Correspondingly, the folding mechanism is in the unfolded and locked state at this time, and the second Neither the first folder nor the third folder can be folded.

When the trigger member 41 is at the second position, the first matching end 431 can slide away from the rib 23 . Specifically, when the trigger member 41 is at the second position, the first locking member 42 will fit in the unlocking groove 212, the first rotating member 1 is unlocked, and the first rotating member 1 can rotate relative to the second rotating member 2, Since the second locking member 43 is inserted on the first rotating member 1, when the first rotating member 1 rotates, it will drive the second locking member 43 to rotate, and the second locking member 43 will slide on the rib 23, when When the second locking member 43 slides away from the rib 23, the second locking member 43 will move toward the second rotating member 2, and the second matching end 432 of the second locking member 43 will be separated from the third rotating member 3 to By unlocking the third rotating member 3 , the third rotating member 3 can rotate relative to the first rotating member 1 , and correspondingly, the folding mechanism can perform further folding at this time.

By setting the rib 23 on the edge of the unlocking groove 212 and setting the second locking member 43 on the first rotating member 1, when the first rotating member 1 is unlocked and can rotate relative to the second rotating member 2 , the rotation of the first rotating member 1 drives and triggers the second locking member 43 to slide away from the rib 23 , thereby unlocking the third rotating member 3 . The rotating assembly 100 has a simple structure and is easy to operate.

When the above-mentioned rotating assembly 100 is used for the folding mechanism of the children's trolley 200, as shown in FIGS. The piece 3 is connected with the plate holder 203, when the trigger piece 41 is at the first position, the first locking piece 42 fits in the locking groove 211, and the first matching end 431 of the second locking piece 43 stops against the rib 23, the second mating end 432 of the second locking member 43 is pressed against the third rotating member 3, at this time the push rod 201 and the plate holder 203 are in the unfolded locked state; when the trigger member 41 is triggered from the first position When moving to the second position, the first locking member 42 fits in the unlocking groove 212. At this time, the push rod 201 is unlocked and can be folded relative to the front leg 202. When the push rod 201 rotates and folds relative to the front leg 202, it will drive The second locking member 43 slides away from the rib 23, so that the second mating end 432 of the second locking member 43 will be separated from the third rotation to unlock the third rotation member 3, and now the plate holder 203 can be pushed relatively. The rod 201 is rotated and folded, thereby further reducing the volume of the stroller 200 for children.

Preferably, as shown in FIG. 14 , the rib 23 has a sliding end 231 for the second locking member 43 to slide away, and the transition between the sliding end 231 and the edge of the unlocking groove 212 is smooth, so that when the folding mechanism is folded, , the second locking member 43 can slide away from the raised rib 23 smoothly, avoiding vibration during the unlocking rotation of the rotating assembly 100; 23. When the folding mechanism is unfolded, the second locking member 43 will slide from the sliding end 231 onto the rib 23 so that the first mating end 431 stops against the rib 23, and the sliding end 231 and the unlocking groove The edge of 212 is smoothly transitioned, thereby ensuring that the second locking member 43 slides onto the raised rib 23 more smoothly, and avoiding the jamming phenomenon during the unfolding process of the folding mechanism.

In an example of the present utility model, one of the third rotating member 3 and the first rotating member 1 is provided with a rotating collar 33, and the other is provided with a rotating protruding shaft 13, and the rotating collar 33 is rotatably sleeved On the rotating protruding shaft 13, that is to say, the rotating collar 33 can be arranged on the third rotating member 3, and the rotating protruding shaft 13 can be arranged on the first rotating member 1 (that is, shown in FIGS. 4 and 9 ); Alternatively, the rotating collar 33 is arranged on the first rotating member 1 , and the rotating protruding shaft 13 is arranged on the third rotating member 3 . Through the cooperation between the rotating collar 33 and the rotating protruding shaft 13, the third rotating member 3 can be rotated relative to the first rotating member 1 after unlocking.

Preferably, as shown in FIG. 4 and FIG. 9 , a limit projection 331 is provided on the inner wall of the rotating collar 33, and an arc-shaped limit notch 131 is provided on the edge of the rotating protruding shaft 13, and the limit projection 331 cooperates with In the limiting notch 131, and can respectively stop against the two ends of the limiting notch 131, thereby limiting the angle of rotation of the third rotating member 3 relative to the first rotating member 1, it is conceivable that the third rotating member 3 The rotatable angle relative to the first rotating member 1 is the central angle of the limiting notch 131 , and the central angle of the limiting notch 131 can be determined according to actual needs in practical applications. In this way, excessive folding of the folding mechanism during the folding process can be avoided.

In a preferred embodiment of the present utility model, as shown in Figures 10-13, the third rotating member 3 is provided with a snap-in slot 311 open toward the first rotating member 1, when the first mating end 431 stops against the When the convex rib 23 is on, the second matching end 432 is clamped in the engaging groove 311, and by making the second engaging end 432 fit in the engaging groove 311, the second engaging end 432 can be pressed against the third engaging groove more stably. On the rotating member 3, the locking of the third rotating member 3 is more stable, thereby improving the stability of the unfolded state of the folding mechanism.

Optionally, as shown in FIGS. 10-13 , the third rotating member 3 is provided with a clip 31 , and the clip groove 311 is formed on the clip 31 and between the clip 31 and the third rotating member 3 A spring 71 is provided, furthermore, the third rotating member 3 is provided with an assembly groove 32, the clamping member 31 is arranged in the assembly groove 32, and the spring 71 is arranged between the clamping member 31 and the bottom wall of the assembly groove 32 between. A spring 71 is arranged between the clamping member 31 and the third rotating member 3 , when the first mating end 431 of the second locking member 43 abuts against the rib 23 and the second mating end 432 presses against the third rotating member 3 When it is on, the spring 71 is in a contracted state. When the first matching end 431 of the second locking member 43 slides away from the rib 23, and when the second matching end 432 is separated from the third rotating member 3, the spring 71 is automatically stretched, thus The position of the clamping piece 31 can be fine-tuned to prevent the clamping piece 31 from being stuck in the assembly groove 32 . As shown in FIGS. 10-13 , the clip 31 may be provided with a positioning column 62 , and the spring 71 is sleeved on the positioning column 62 , thereby making the positioning of the spring 71 more stable and preventing the spring 71 from moving.

Preferably, as shown in Figures 10-13, the second locking member 43 is covered with a spring 72, and the spring 72 often drives the second mating end 432 to separate from the third rotating member 3, specifically, when the second locking member When 43 stops against the convex rib 23, one end of the spring 72 stops against the first mating end 431, and the other end of the spring 72 stops against the clamping member 31, thus, when the second locking member 43 slides away from the protrusion When the rib 23 is closed, the second locking member 43 can be automatically separated from the third rotating member 3 under the drive of the spring 72, and the unlocking is faster.

The foldable children's trolley 200 according to the embodiment of the second aspect of the utility model includes a frame and a rotating assembly 100, the frame includes a push rod 201 and a front foot frame 202, the first rotating member 1 is connected with the push rod 201, and the second rotating Part 2 is connected to the front foot frame 202 .

According to the foldable children's trolley 200 according to the embodiment of the utility model, by setting the rotating assembly 100 according to the embodiment of the first aspect of the utility model, the children's trolley 200 has all the advantages of the above-mentioned rotating assembly 100, and the structure of the children's trolley 200 is simple Moreover, the folding operation is convenient, thereby improving the overall product quality of the children's trolley 200 and improving user experience.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" is intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A rotating assembly, characterized in that it comprises: first rotating member; A second rotating member, the second rotating member is pivotally connected to one side of the first rotating member, a matching groove is provided on a side of the second rotating member adjacent to the first rotating member, and the matching groove including a locking slot and an unlocking slot communicating with each other; A locking mechanism, the locking mechanism includes a trigger and a first locking member connected to the trigger, the trigger is movably arranged on the first rotating member between a first position and a second position , when the trigger member is at the first position, the free end of the first locking member fits in the locking groove to lock the position of the first rotating member relative to the second rotating member ; when the trigger member is triggered to move from the first position to the second position, the free end of the first locking member fits in the unlocking groove, and the first rotating member is unlocked to The first rotating member can rotate relative to the second rotating member. 2 . The rotating assembly according to claim 1 , wherein the unlocking slot is formed in an arc shape, and the locking slot is provided at one end of the unlocking slot and extends radially of the unlocking slot. 3 . 3. The rotating assembly according to claim 1, wherein a first positioning member is provided inside the first rotating member, and a positioning member extending along the length direction of the locking groove and positioned on the first positioning member is provided on the first positioning member. The limiting long hole passing through the first positioning member in the thickness direction, the limiting long hole has a first stop portion and a second stop portion in its length direction, and the trigger member is arranged on the first On the side of the locating member away from the second rotating member, the free end of the first locking member fits in the matching groove after passing through the limiting slot, when the triggering member is respectively positioned on the At the first position and the second position, the first locking member is respectively abutted against the first abutment portion and the second abutment portion. 4. The rotating assembly according to claim 3, wherein a second positioning member rotatably connected to the first positioning member is provided inside the second rotating member, and the second positioning member is provided for Avoid the avoidance gap of the matching groove. 5. The rotating assembly according to any one of claims 1-4, wherein a rib is provided on a side of the second rotating member adjacent to the first rotating member, and the rotating assembly further includes : a third rotating member, the third rotating member is pivotally connected to a side of the first rotating member away from the second rotating member; The second locking piece, the second locking piece has a first matching end and a second matching end, the second locking piece is passed through the first rotating piece, and the first matching end and the second locking piece are The second matching ends protrude from the first rotating member respectively, wherein the first matching ends can stop against the ribs or slide away from the ribs, and when the first matching ends stop against the ribs When the rib is on, the second matching end presses against the third rotating member to lock the position of the third rotating member relative to the first rotating member, and when the first matching end slides When leaving the convex rib, the second matching end is separated from the third rotation to unlock the third rotation member, and the third rotation member can rotate relative to the first rotation member. 6 . The rotating assembly according to claim 5 , wherein the rib is arranged on the edge of the unlocking groove and extends along the extending direction of the unlocking groove. When the trigger member is in the first position When the trigger member is at the second position, the first matching end stops against the raised rib, and when the trigger member is at the second position, the first matching end can slide away from the raised rib. 7 . The rotating assembly according to claim 6 , wherein the third rotating member is provided with a snap-in groove open to the first rotating member, when the first mating end abuts against the When the convex rib is on, the second matching end is clamped in the clamping groove. 8. The rotating assembly according to claim 7, wherein the third rotating member is provided with a clip, the clip groove is formed on the clip, and the clip and the clip are A spring is arranged between the third rotating members. 9. The rotating assembly according to claim 8, characterized in that, the third rotating member is provided with an assembly groove, the clamping member is arranged in the assembly groove, and the spring is arranged in the Between the clamping piece and the bottom wall of the fitting groove. 10. A foldable children's trolley, comprising: A vehicle frame, which includes a push rod and a front foot; According to the rotating assembly according to any one of claims 1-9, the first rotating member is connected with the push rod, and the second rotating member is connected with the front stand.