Wheel assembly and buggy

Abstract

The utility model relates to the technical field of buggy, and provides a wheel assembly and a buggy. The pedal assembly is connected to the wheel body and has a locking state and a free state; the locking piece is movably connected to the wheel body and is provided with a locking position and an unlocking position on the wheel body; and the driving piece is movably connected to the wheel body. Compared with the prior art, the wheel has the advantages that the locking piece which is movably clamped with the pedal assembly is movably arranged on the wheel body, and the driving piece which drives the position of the locking piece to switch is arranged on the wheel body, so that the pedal assembly can be switched between a locking state and a free state on the wheel body; therefore, when the buggy is pushed, the pedal assembly supports the feet of a child and does not rotate synchronously with the wheel body, so that the child can have a full rest.

Description

Technical Field

[0001] The utility model relates to the technical field of children's vehicles, in particular to a wheel assembly and a children's vehicle. Background Art

[0002] As a great tool for carrying children, strollers have become popular among consumers. Existing strollers are generally divided into two types: those with pedals and those without. Models with pedals are usually fixed to the front wheels of the stroller and are mainly used by the user to push or drive the stroller. Although fixed pedals for strollers have a simple structure and low manufacturing cost, their functions are relatively simple. In addition, pedals with this structure will still rotate with the wheels when the stroller is pushed. At this time, the feet of the child riding will still rotate with the rotation of the pedals, and thus the child will not be able to get enough rest. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a wheel assembly and a baby stroller in view of the current status of the existing technology.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a wheel assembly is proposed, comprising: a wheel body;

[0005] a pedal assembly connected to the wheel body and having a locked state and a free state, wherein when the pedal assembly is in the locked state, the wheel body is driven to rotate when the pedal assembly rotates, and when the pedal assembly is in the free state, the wheel body cannot be driven to rotate when the pedal assembly rotates;

[0006] a locking member movably connected to the wheel body and having a locked position and an unlocked position on the wheel body;

[0007] a driving member movably connected to the wheel body, and configured to switch the locking member between the locked position and the unlocked position when the driving member moves on the wheel body;

[0008] When the locking member is in the locking position, the locking member is engaged with the pedal assembly, so that the pedal assembly is in the locking state;

[0009] When the locking member is in the unlocking position, the locking member is disengaged from the pedal assembly, so that the pedal assembly is in the free state.

[0010] In the above-mentioned wheel assembly, the driving member is rotatably disposed on the wheel body and has a first rotation direction and a second rotation direction that are opposite in direction;

[0011] When the driving member rotates along the first rotation direction and rotates the pedal assembly, the locking member is moved from the unlocking position to the locking position;

[0012] When the driving member rotates along the second rotation direction, it is used to drive the locking member to move from the locking position to the unlocking position.

[0013] In the above-mentioned wheel assembly, the rotation center of the driving member coincides with the rotation center of the wheel body.

[0014] In the above-mentioned wheel assembly, a driving portion is provided on the driving member, and a boss is provided on the locking member. The boss is movably inserted in the driving portion to drive the locking member to switch between the locking position and the unlocking position when the driving member rotates.

[0015] In the above-mentioned wheel assembly, the driving portion is a curved surface arranged on the driving member, and a first elastic member is arranged between the locking member and the wheel body. When the locking member is in the unlocking position, the locking position and any position therebetween, the first elastic member is in an elastic energy storage state, so as to make the boss press against the curved surface, and along the first rotation direction, the maximum distance between the curved surface and the rotation center of the wheel body gradually increases.

[0016] In the above-mentioned wheel assembly, the curved surface is recessed along the starting end in the first rotation direction toward the rotation center of the driving member to form a limiting portion, and the limiting portion is adapted to the shape of the boss to fix the boss when the locking member is in the unlocked position.

[0017] In the above-mentioned wheel assembly, a sliding groove is provided on the wheel body, a cover plate is connected to the wheel body, a movable space is formed between the cover plate and the sliding groove, the driving member is movably connected in the movable space and one end of the driving member passes through the cover plate and is exposed to the outside of the movable space, the driving member movably abuts against the cover plate and / or the sliding groove to provide friction for the driving member.

[0018] In the above-mentioned wheel assembly, the wheel frame is further included, and the pedal assembly includes:

[0019] a rotating shaft rotatably connected to the wheel body, the rotating shaft being provided with a first engaging groove, the locking member being movably engaged with the first engaging groove;

[0020] A rotating shaft sleeve is rotatably connected to the wheel frame, and the rotating shaft sleeves are rotatably provided at both ends of the rotating shaft along the axial direction;

[0021] A pedal is fixed on each of the rotating shaft sleeves.

[0022] The above-mentioned wheel assembly also includes a locking ring, which is connected to the wheel frame, one end of the locking ring passes through the side wall of the wheel frame and is exposed on the outside of the wheel frame, a second clamping groove is provided on the outside of the rotating shaft sleeve, and the locking ring is movably clamped with the second clamping groove, and a second elastic member is provided between the locking ring and the wheel frame to make the locking ring abut against the second clamping groove.

[0023] The present invention solves the above technical problems and further provides a children's vehicle comprising the above wheel assembly.

[0024] Compared with the prior art, the advantage of the present invention is that a locking member movably arranged on the wheel body and movably engaged with the pedal assembly is provided, and a driving member is provided on the wheel body to drive the position switching of the locking member, so as to realize the switching of the pedal assembly between a locked state and a free state on the wheel body. Therefore, when the children's stroller is pushed, the pedal assembly is supported on the child's feet while not rotating synchronously with the wheel body, so that the child can get sufficient rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of a wheel assembly of the present utility model;

[0026] Figure 2 This is a three-dimensional diagram of a wheel assembly of the present invention, in which the locking member is in the unlocked position and the cover plate is omitted;

[0027] Figure 3 yes Figure 2 A partial cross-sectional view of

[0028] Figure 4 yes Figure 2 A three-dimensional diagram of the middle structure;

[0029] Figure 5 This is a three-dimensional diagram of a wheel assembly of the present invention, in which the locking member is in a locked position and the cover plate is omitted;

[0030] Figure 6 yes Figure 5 A partial cross-sectional view of

[0031] Figure 7 yes Figure 5 A three-dimensional diagram of the middle structure;

[0032] Figure 8 It is a plan view of a wheel assembly of the present utility model;

[0033] Figure 9 yes Figure 8 Cross-sectional view along the AA axis.

[0034] In the figure, 100, wheel body; 110, first elastic member; 120, sliding groove; 130, cover plate; 200, pedal assembly; 210, rotating shaft; 211, first clamping groove; 220, rotating shaft sleeve; 221, second clamping groove; 230, pedal; 300, locking member; 310, boss; 400, driving member; 410, driving part; 420, limiting part; 430, toggle block; 500, wheel frame; 510, locking ring; 520, second elastic member. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figures 1 to 8 As shown, in this solution, the application of the wheel assembly in a children's vehicle and the specific structure of the wheel assembly are mainly described in detail. The above-mentioned children's vehicle can be a children's two-wheeled vehicle or a children's three-wheeled vehicle.

[0037] A wheel assembly includes: a wheel body 100, a pedal assembly 200, a locking member 300, a driving member 400, and a wheel frame 500.

[0038] Specifically, the wheel body 100 includes a hub and a tire on the outside of the hub. The pedal assembly 200 is connected to the wheel body 100 and has a locked state and a free state. When the pedal assembly 200 is in the locked state, it is used to drive the wheel body 100 to rotate when the pedal assembly 200 rotates. When the pedal assembly 200 is in the free state, it is used to prevent the wheel body 100 from rotating when the pedal assembly 200 rotates. The locking member 300 is movably connected to the wheel body 100 and has a locking member on the wheel body 100. The locking position and the unlocking position of the wheel body 100 are respectively defined as follows: the driving member 400 is movably connected to the wheel body 100, and when the driving member 400 moves on the wheel body 100, it is used to switch the locking member 300 between the locking position and the unlocking position; when the locking member 300 is in the locking position, the locking member 300 is engaged with the pedal assembly 200, so that the pedal assembly 200 is in a locked state; when the locking member 300 is in the unlocking position, the locking member 300 is disengaged from the pedal assembly 200, so that the pedal assembly 200 is in a free state.

[0039] Reference Figures 1 to 4, at this time, the locking member 300 is in the unlocked position, the locking member 300 and the pedal assembly 200 are disengaged, and the pedal assembly 200 is in a free state. At this time, rotating the pedal assembly 200 cannot drive the wheel body 100 to rotate, and correspondingly, the rotation of the wheel body 100 cannot drive the pedal assembly 200 to rotate. In this state, when the baby stroller is pushed and the child's feet are placed on the pedal assembly 200, the child's feet will not move due to the rotation of the pedal assembly 200, so that the child can get enough rest. When the driving member 400 is pushed, it drives the locking member 300 to move from the unlocked position to the locked position. Figures 5 to 7 In the locked position shown, the locking member 300 is engaged with the pedal assembly 200, and the pedal assembly 200 is locked. At this time, rotating the pedal assembly 200 can drive the wheel body 100 to rotate, so that the child can normally drive the wheel body 100 to rotate.

[0040] Preferably, two toggle blocks 430 are provided on the driving member 400. When the locking member 300 is in the locked position and the unlocked position, there is a toggle block 430 that abuts against the wheel body 100. The toggle block 430 is configured as a fulcrum for the operator to apply force to the driving member 400, and is used to facilitate the movement of the driving member 400 on the wheel body 100. In addition, the provision of the two toggle blocks 430 and the fact that there is a toggle block 430 that abuts against the wheel body 100 when the locking member 300 is in the locked position and the unlocked position can also be used to provide a limit for the driving member 400, so that the driving member 400 can correctly drive the locking member 300 to move to the locked position and the unlocked position.

[0041] In this solution, a locking member 300 movably engaged with the pedal assembly 200 is movably provided on the wheel body 100, and a driving member 400 is provided on the wheel body 100 to drive the locking member 300 to switch its position, so as to realize the switching of the pedal assembly 200 between a locked state and a free state on the wheel body 100. Therefore, when the baby stroller is pushed, the pedal assembly 200 is supported on the child's feet while not rotating synchronously with the wheel body 100, so that the child can get sufficient rest.

[0042] In one embodiment, the driving member 400 is rotatably disposed on the wheel body 100 and has a first rotation direction and a second rotation direction in opposite directions; when the driving member 400 rotates along the first rotation direction and rotates the pedal assembly 200, it is used to move the locking member 300 from the unlocked position to the locked position; when the driving member 400 rotates along the second rotation direction, it is used to drive the locking member 300 to move from the locked position to the unlocked position.

[0043] Reference Figure 2 and Figure 4, at this time, the locking member 300 is in the unlocked position and the pedal assembly 200 is in a free state. Figure 2 The counterclockwise direction is the first rotation direction of the driving member 400. Figure 2 When the pedal assembly 200 is rotated in the counterclockwise direction, the locking member 300 is moved from the unlocked position to the locked position until the driving member 400 and the locking member 300 are respectively moved to Figure 5 and Figure 7 At this time, the locking member 300 moves to the locking position and engages with the pedal assembly 200, so that the pedal assembly 200 is switched to the locking state.

[0044] Similarly, when the driving member 400 and the locking member 300 are respectively in Figure 5 and Figure 7 In the state shown, the locking member 300 is in the locked position and the pedal assembly 200 is in the locked state. Figure 5 When the locking member 300 is rotated in the clockwise direction, the locking member 300 is driven to move from the locked position to the unlocked position until the driving member 400 and the locking member 300 are respectively moved to Figure 2 and Figure 4 At this time, the locking member 300 moves to the unlocking position and is disengaged from the pedal assembly 200, so that the pedal assembly 200 switches to the free state.

[0045] In one embodiment, when the driving member 400 is rotatably disposed on the wheel body 100 , the rotation center of the driving member 400 is located at the rotation center of the wheel body 100 .

[0046] In one embodiment, a driving portion 410 is provided on the driving member 400, and the driving portion 410 can be integrally formed with the driving member 400 or separately provided. A boss 310 is provided on the locking member 300. Similarly, the boss 310 and the locking member 300 can be integrally formed or separately provided. The boss 310 is movably inserted in the driving portion 410 to drive the locking member 300 to switch between a locked position and an unlocked position when the driving member 400 rotates.

[0047] In one embodiment, the driving portion 410 is a curved surface arranged on the driving member 400, and a first elastic member 110 is arranged between the locking member 300 and the wheel body 100. The first elastic member 110 is preferably a spring, and when the locking member 300 is in the unlocked position, the locked position and any position therebetween, the first elastic member 110 is in an elastic energy storage state, so that the boss 310 is pressed against the curved surface, and along the first rotation direction, the maximum distance between the curved surface and the rotation center of the wheel body 100 gradually increases.

[0048] Reference Figure 3 At this time, the locking member 300 is in the unlocked position, the protruding column 310 is pressed against the starting end of the curved surface along the first rotation direction, and the first elastic member 110 is in a compressed state. Since the maximum distance from the curved surface to the rotation center of the wheel body 100 gradually increases along the first rotation direction, when the driving member 400 rotates in the first rotation direction (i.e. Figure 3 When the wheel body 100 rotates in the counterclockwise direction, the first elastic member 110 pushes the locking member 300 to gradually move toward the rotation center direction of the wheel body 100, thereby moving the locking member 300 from the unlocking position to the locking position.

[0049] Similarly, refer to Figure 6 At this time, the locking member 300 is in the locked position, the protruding column 310 is pressed against the starting end of the curved surface along the second rotation direction, and the first elastic member 110 is still in the compressed state. Since the maximum distance from the curved surface to the rotation center of the wheel body 100 gradually decreases along the second rotation direction, when the driving member 400 rotates along the second rotation direction (i.e. Figure 6 When the wheel body 100 is rotated in a clockwise direction, the curved surface pushes the boss 310 to move in a direction away from the wheel body 100, thereby moving the locking member 300 from the locked position to the unlocked position.

[0050] In one embodiment, the driving portion 410 is a track groove (not shown in the figure) provided on the driving member 400. Along the first rotation direction, the maximum distance between the track groove and the wheel body gradually increases. The boss 310 is movably provided in the track groove, and is used to drive the locking member 300 to move on the wheel body through the boss 310 when the driving member 400 rotates.

[0051] In one embodiment, the curved surface is recessed along the starting end in the first rotation direction toward the rotation center of the driving member 400 to form a limiting portion 420, which is adapted to the shape of the boss 310 and is used to fix the boss 310 when the locking member 300 is in the unlocked position.

[0052] Reference Figure 3 , at this time, the locking member 300 is in the unlocked position, and the first elastic member 110 is in the maximum compression state. Under the action of the first elastic member 110, the reaction force of the curved surface on the protrusion 310 is directed toward Figure 3 The reaction force pushes the boss 310 to rotate in the second direction (ie Figure 3This can cause the locking member 300 to disengage from its locked position when the wheel body 100 traverses a bumpy road section. To address this issue, this solution provides a stopper 420 at the starting section of the curved surface along the first rotational direction, adapted to the outer shape of the boss 310. For example, if the boss 310 is cylindrical, the stopper 420 is an arcuate surface; if the boss 310 is truncated, the stopper 420 is the outer surface of the truncated cone, securing the boss 310 at the starting point of the curved surface along the first rotational direction.

[0053] In one embodiment, a sliding groove 120 is provided on the wheel body 100, and a cover plate 130 is connected to the wheel body 100. A movable space is formed between the cover plate 130 and the sliding groove 120. The driving member 400 is movably connected in the movable space and one end of the driving member 400 passes through the cover plate 130 and is exposed to the outside of the movable space. The driving member 400 movably abuts against the cover plate 130 and / or the sliding groove 120 to provide friction for the driving member 400.

[0054] The cover plate 130 and the wheel body 100 may be threaded or snap-fitted together. The movable space formed between the cover plate 130 and the sliding groove 120 serves to guide the movement of the driving member 400. One end of the driving member 400 is exposed outside the movable space, allowing the user to push the driving member 400 on the wheel body 100. The movable contact between the driving member 400 and the cover plate 130 and / or the sliding groove 120 provides friction during the movement of the stroller, preventing the driving member 400 from moving relative to the wheel body 100 when the stroller is bumpy, thereby ensuring the stability of the wheel assembly of this embodiment.

[0055] In one embodiment, a wheel frame 500 is further included, which is used to connect the wheel assembly of this solution with the body of the children's car. The pedal assembly 200 includes: a rotating shaft 210, which is rotatably connected to the wheel body 100, and a first clamping groove 211 is provided on the rotating shaft 210, and the locking member 300 is movably clamped with the first clamping groove 211; a rotating shaft sleeve 220, which is rotatably connected to the wheel frame 500, and a rotating shaft sleeve 220 is rotatably provided at both ends of the rotating shaft 210 along the axial direction; a pedal 230, and a pedal 230 is fixed on each rotating shaft sleeve 220.

[0056] The locking member 300 is preferably a block-shaped structure, which can increase the engagement area between the locking member 300 and the first engagement groove 211 , and increase the stability of the wheel assembly of this solution when the locking member 300 is in the locked position.

[0057] Since the connection between the wheel carrier 500 and the vehicle body belongs to the existing technology, it will not be described here in detail.

[0058] In one embodiment, a locking ring 510 is further included. The locking ring 510 is connected to the wheel frame 500. One end of the locking ring 510 passes through the side wall of the wheel frame 500 and is exposed on the outside of the wheel frame 500. A second clamping groove 221 is provided on the outside of the rotating shaft sleeve 220. The locking ring 510 is movably clamped with the second clamping groove 221. A second elastic member 520 is provided between the locking ring 510 and the wheel frame 500 to make the locking ring 510 abut against the second clamping groove 221.

[0059] The second elastic member 520 is preferably a spring. Figure 4 、 Figure 7 and Figure 9 , the second elastic member 520 is pressed against the lock ring 510, so that the lock ring 510 is clamped in the second clamping groove 221. The pedal 230 is fixed to the wheel frame 500 in a rotating connection manner through the rotating shaft sleeve 220. Figure 4 When the locking ring 510 is pushed upward from the bottom until the end thereof is exposed outside the wheel frame 500, the locking ring 510 overcomes the elastic force of the second elastic member 520 and moves, thereby disengaging from the second engaging groove 221. At this point, under the action of an external force, the pedal 230 and the rotating shaft sleeve 220 can be removed from the rotating shaft 210, thereby satisfying the user's remaining usage requirements for the stroller.

[0060] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement status of the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0061] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0063] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0064] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the scope defined by the spirit of the present invention.

Claims

1. A wheel assembly, characterized in that: include: Wheel body; a pedal assembly connected to the wheel body and having a locked state and a free state, wherein when the pedal assembly is in the locked state, the wheel body is driven to rotate when the pedal assembly rotates, and when the pedal assembly is in the free state, the wheel body cannot be driven to rotate when the pedal assembly rotates; a locking member movably connected to the wheel body and having a locked position and an unlocked position on the wheel body; a driving member movably connected to the wheel body, and configured to switch the locking member between the locked position and the unlocked position when the driving member moves on the wheel body; When the locking member is in the locking position, the locking member is engaged with the pedal assembly, so that the pedal assembly is in the locking state; When the locking member is in the unlocking position, the locking member is disengaged from the pedal assembly, so that the pedal assembly is in the free state.

2. A wheel assembly according to claim 1, characterized in that: The driving member is rotatably disposed on the wheel body and has a first rotation direction and a second rotation direction that are opposite in direction; When the driving member rotates along the first rotation direction and rotates the pedal assembly, the locking member is moved from the unlocking position to the locking position; When the driving member rotates along the second rotation direction, it is used to drive the locking member to move from the locking position to the unlocking position.

3. A wheel assembly according to claim 2, characterized in that: The rotation center of the driving member coincides with the rotation center of the wheel body.

4. A wheel assembly according to claim 2, characterized in that: The driving member is provided with a driving portion, and the locking member is provided with a boss. The boss is movably inserted in the driving portion to drive the locking member to switch between the locking position and the unlocking position when the driving member rotates.

5. A wheel assembly according to claim 4, characterized in that: The driving portion is a curved surface arranged on the driving member, and a first elastic member is arranged between the locking member and the wheel body. When the locking member is in the unlocking position, the locking position and any position therebetween, the first elastic member is in an elastic energy storage state, so as to make the boss press against the curved surface, and along the first rotation direction, the maximum distance between the curved surface and the rotation center of the wheel body gradually increases.

6. A wheel assembly according to claim 5, characterized in that: The curved surface is recessed along the starting end in the first rotation direction toward the rotation center of the driving member to form a limiting portion, and the limiting portion is adapted to the shape of the boss to fix the boss when the locking member is in the unlocking position.

7. A wheel assembly according to claim 1, characterized in that: A sliding groove is provided on the wheel body, and a cover plate is connected to the wheel body. A movable space is formed between the cover plate and the sliding groove. The driving member is movably connected in the movable space and one end of the driving member passes through the cover plate and is exposed to the outside of the movable space. The driving member movably abuts against the cover plate and / or the sliding groove to provide friction for the driving member.

8. The wheel assembly according to claim 1, wherein: Also included is a wheel frame, the pedal assembly comprising: a rotating shaft rotatably connected to the wheel body, the rotating shaft being provided with a first engaging groove, the locking member being movably engaged with the first engaging groove; A rotating shaft sleeve is rotatably connected to the wheel frame, and the rotating shaft sleeves are rotatably provided at both ends of the rotating shaft along the axial direction; A pedal is fixed on each of the rotating shaft sleeves.

9. A wheel assembly according to claim 8, characterized in that: It also includes a locking ring, which is connected to the wheel frame, one end of the locking ring passes through the side wall of the wheel frame and is exposed on the outside of the wheel frame, a second clamping groove is provided on the outside of the rotating shaft sleeve, and the locking ring is movably clamped with the second clamping groove, and a second elastic member is provided between the locking ring and the wheel frame to make the locking ring abut against the second clamping groove.

10. A children's vehicle, characterized in that: The invention comprises a wheel assembly according to any one of claims 1 to 9.

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