CN213831973U

CN213831973U - Folding mechanism of child scooter

Info

Publication number: CN213831973U
Application number: CN202021870426.XU
Authority: CN
Inventors: 贺国峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-07-30
Anticipated expiration: 2030-09-01

Abstract

A folding mechanism of a child scooter comprises a scooter body; the vehicle folding joint is hinged with the vehicle body, a cavity is arranged in the vehicle folding joint, and positioning holes are formed in the peripheral wall of the vehicle folding joint; the height adjusting device comprises a fixed pipe fixed in the cavity and a height adjusting pipe which can be inserted in the fixed pipe in an axial sliding manner and is provided with a handle at the upper end, wherein a height adjusting locking structure is arranged between the fixed pipe and the height adjusting pipe; the first positioning block and the second positioning block are arranged on the vehicle body and are distributed in the circumferential direction of the vehicle collection joint at intervals, and the first positioning block and the second positioning block can be respectively inserted into the positioning holes to lock the handle assembly in a use state and a vehicle collection state; the first positioning block and the second positioning block are respectively provided with a first spring and a second spring which tend to be inserted into the positioning holes; the unlocking block is arranged in the cavity, and the axial sliding of the height adjusting pipe can drive the unlocking block to axially extend outwards so that the first positioning block or the second positioning block is separated from the positioning hole, and the handle assembly can rotate relative to the vehicle body. The utility model relates to a child scooter receipts car mechanism, receipts car stable performance.

Description

Folding mechanism of child scooter

Technical Field

The utility model relates to a scooter technical field especially relates to a children's scooter mechanism of receiving.

Background

The scooter is a novel transportation tool integrating leisure, entertainment and walking, and has the advantages of small volume, light weight, moderate speed, low manufacturing cost, simple operation and the like. In order to make the scooter convenient to carry, the scooter is usually set to be a foldable structure, and in a use state, the handlebars are perpendicular to the base of the scooter body, and the handlebars are rotated relative to the scooter body so as to enable the handlebars to be transversely placed on the scooter body, and therefore the occupied space of the scooter is reduced.

The chinese utility model patent with patent number ZL201920425665.6 (No. CN209757395U) discloses a folding scooter, which comprises a scooter pedal, wherein the front part of the scooter pedal is connected with a supporting tube, and the supporting tube is rotatably arranged on the scooter pedal through a second folding device; the upper end of the handrail tube is provided with a folding handrail, the lower end of the handrail tube is provided with a front wheel, and the rear part of the bicycle pedal is provided with a rear wheel; the folding handrail is connected with the second folding device through the linkage mechanism, an unlocking button is arranged in the folding handrail, and the folding handrail and the handrail tube can be folded simultaneously by pressing the unlocking button. The handrail can be folded by pressing the unlocking button, and the second folding device is driven to operate by the linkage mechanism when the handrail is folded so as to fold the handrail tube and the scooter body, so that the occupied volume of the scooter can be effectively reduced; however, the folding scooter has a complicated folding mechanism and high manufacturing cost, and the folding mechanism needs to be linked by a plurality of parts when folding, and once any part fails, the normal operation of the folding mechanism can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a child's scooter receipts car mechanism is provided to foretell technical current situation, not only the structure is simpler, with low costs, thereby and the linkage piece makes the performance of receiving a car more stable less.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a folding mechanism of a child scooter comprises:

the vehicle body is provided with a plurality of wheels,

the handle assembly comprises a fixed pipe and a height adjusting pipe which is inserted in the fixed pipe and can axially slide, the upper end of the height adjusting pipe is provided with a handle, and a height adjusting locking structure is arranged between the fixed pipe and the height adjusting pipe;

it is characterized by also comprising

The folding joint is hinged with the vehicle body, a cavity is arranged in the folding joint, the fixing pipe is fixed in the cavity, and positioning holes communicated with the cavity are formed in the peripheral wall of the folding joint;

the first positioning block is arranged on the vehicle body and can be inserted into the positioning hole to lock the handle assembly in a use state;

the first spring enables the first positioning block to always have the movement tendency of being inserted into the positioning hole;

the second positioning block is arranged on the vehicle body, is distributed at intervals with the first positioning block in the circumferential direction of the vehicle folding joint, and can be inserted into the positioning hole to lock the handle assembly in a vehicle folding state;

the second spring enables the second positioning block to always have the movement tendency of being inserted into the positioning hole;

the unlocking block can be axially and telescopically arranged in the cavity, and the axial sliding of the height adjusting pipe can drive the unlocking block to axially extend outwards so as to enable the first positioning block or the second positioning block to be separated from the positioning hole, so that the handle assembly is unlocked and can freely rotate relative to the vehicle body.

In order to limit the axial downward movement of the height adjusting tube and enable the handle assembly to be stably locked in a use state, the handle assembly further comprises a limiting structure used for limiting the axial downward movement of the height adjusting tube and pushing the unlocking block to axially extend outwards. Handle subassembly is locked when the user state, inevitably the axial pushes down the altitude mixture control pipe when children's hand push altitude mixture control pipe moves forward, adopts limit structure restriction altitude mixture control pipe to move down receiving the axial when pushing down the effect, can effectively avoid children unblock handle subassembly and mistake folding scooter when normally using the scooter.

In order to make the limiting structure simpler, the limiting structure comprises a limiting column, a blocking part and an elastic part, the limiting column penetrates through the peripheral wall of the height adjusting pipe and can stretch out and draw back along the radial direction of the height adjusting pipe, the blocking part is arranged on the height adjusting locking structure and abuts against the lower end of the limiting column, and the elastic part enables the limiting column to always have a motion trend extending outwards along the radial direction of the height adjusting pipe.

In order to make altitude mixture control locking structure simpler, altitude mixture control locking structure include elasticity cover and threaded connection in the outside adjusting collar of elasticity cover, the elasticity cover cup joint in fixed pipe upper end and with the peripheral wall of altitude mixture control pipe is laminated mutually, the adjusting collar is used for adjusting the elasticity cover is right the tensioning degree of altitude mixture control pipe.

In order to enable the height adjustment of the handle assembly to be more accurate, a pinch plate is further arranged between the elastic sleeve and the adjusting sleeve, one end of the pinch plate is hinged with the elastic sleeve, a convex rib is arranged at the other end of the pinch plate, and a plurality of clamping grooves for the convex rib to be clamped into are formed in the peripheral wall of the height adjusting pipe at intervals; and a third spring is restrained between the buckle plate and the elastic sleeve, and the third spring enables the buckle plate to have a movement trend of rotating outwards to enable the convex rib to be separated from the clamping groove.

In order to simplify the structure of the child scooter, the upper end of the adjusting sleeve forms the stopper.

In order to enable the vehicle folding joint to only rotate along the circumferential direction, the vehicle folding joint comprises a hinge part positioned at the lower part and an insertion part positioned at the upper part, the hinge part is flat, the peripheral wall of the hinge part is an arc surface, the positioning hole is arranged on the hinge part, and the insertion part is tubular.

In order to enable the unlocking block to axially stretch along a preset track in the cavity, the car collecting joint is hinged to the car body through a rotating shaft, and a strip-shaped hole is formed in the unlocking block, is used for allowing the rotating shaft to penetrate through and extends along the axial direction of the positioning hole. If the unlocking block is separated from the positioning hole when the unlocking block is axially retracted in the cavity, the matching design of the strip-shaped hole and the rotating shaft can ensure that the unlocking block which is withdrawn from the positioning hole can enter the positioning hole again.

In order to facilitate the assembly of the vehicle folding mechanism and hide the locking structure in the vehicle body, the vehicle body comprises a base and a cover plate which are connected with each other, and the vehicle folding joint is hinged with the base and penetrates out of the cover plate; the base is provided with a first inner cavity and a second inner cavity which are distributed at intervals along the circumferential direction of the car collecting joint, the first positioning block and the first spring are arranged in the first inner cavity, and the second positioning block and the second spring are arranged in the second inner cavity.

Further, the first positioning block is arranged along the vertical direction, and the second positioning block is arranged along the horizontal direction.

Compared with the prior art, the utility model has the advantages of: make the handle subassembly locking in user state through inserting first locating piece in the locating hole, perhaps insert the second locating piece in the locating hole and make the handle subassembly locking in the state of receiving, and the axial of the drive unlocking piece in the cavity that slides through the height-adjusting pipe is overhanging, make first locating piece or second locating piece deviate from in the locating hole, thereby unblock handle subassembly and make the handle subassembly can freely rotate relative to the automobile body, children's scooter's receiving mechanism structure is simpler, low in manufacturing cost, and, the linkage is few, receiving mechanism is less because of the unable normal operating's of certain part trouble probability is less, receiving performance is more stable.

Drawings

FIG. 1 is a perspective view of the embodiment of the present invention (the handle assembly is used and a small portion of the height adjusting tube is hidden in the fixing tube);

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a perspective view of the embodiment of the present invention (the handle assembly is in use and the height adjusting tube is mostly hidden in the fixing tube);

FIG. 4 is a cross-sectional view of FIG. 3;

fig. 5 is a cross-sectional view of an embodiment of the present invention (with the handle assembly unlocked);

fig. 6 is a perspective view of the embodiment of the present invention (in a state of folding the handle assembly);

fig. 7 is a cross-sectional view of fig. 6.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Fig. 1-7 show the preferred embodiment of the present invention.

As shown in fig. 1-7, the folding mechanism of the child scooter in the present embodiment includes a body 1, a folding joint 2, a handle assembly, a first positioning block 41, a second positioning block 42, a first spring 51, a second spring 52, a third spring 53, an unlocking block 6, a rotating shaft 10, and other main components.

The vehicle body 1 includes a base 11 and a cover 12 (see fig. 1) connected to each other. As shown in fig. 4-5 and 7, the folding joint 2 includes a hinge portion 22 located at the lower portion and an insertion portion 23 located at the upper portion, the hinge portion 23 is flat and has a curved peripheral wall, the hinge portion 23 is hinged to the base 11 through the rotating shaft 10, the insertion portion 23 is tubular and penetrates through the cover plate 12, and the handle assembly is fixedly inserted into the insertion portion 23. As shown in fig. 1, 3 and 6, the handle assembly includes a fixing tube 3 and a height adjusting tube 7 having a handle at an upper end thereof, the height adjusting tube 7 is inserted into the fixing tube 3 and can slide along an axial direction of the fixing tube 3, a height adjusting locking structure is disposed between the fixing tube 3 and the height adjusting tube 7, a handle sleeve 72 is sleeved on the handle, and a concave-convex structure convenient for a user to hold is further disposed on the handle sleeve 72.

As shown in fig. 4-5 and 7, the folding joint 2 has a cavity inside, and the fixing tube 3 is fixed in the cavity; the hinge 23 has a peripheral wall formed with a positioning hole 21 communicating with the cavity. As shown in fig. 4, the base 11 has a first inner cavity 111 and a second inner cavity 112 spaced apart from each other along the circumferential direction of the vehicle folding joint 2, the first positioning block 41 and the first spring 51 are located in the first inner cavity 111, and the second positioning block 42 and the second spring 52 are located in the second inner cavity 112. Wherein the first positioning block 41 is arranged along the vertical direction and can be inserted into the positioning hole 21 to lock the handle assembly in the use state (see fig. 4), at this time, the handle assembly is substantially perpendicular to the vehicle body 1 (see fig. 1 and 3), and the first spring 51 is used for enabling the first positioning block 41 to always have the movement tendency of being inserted into the positioning hole 21; the second positioning block 42 is disposed in the horizontal direction and can be inserted into the positioning hole 21 to lock the handle assembly in the retracted state (see fig. 7), in which the handle assembly is substantially parallel to the vehicle body 1 (see fig. 6), and the second spring 52 is used to make the second positioning block 42 always have a movement tendency to be inserted into the positioning hole 21. The unlocking block 6 is axially and telescopically arranged in the cavity, and the axial sliding of the height adjusting pipe 7 can drive the unlocking block 6 to axially extend outwards so that the first positioning block 41 or the second positioning block 42 is separated from the positioning hole 21, thereby unlocking the handle assembly and enabling the handle assembly to freely rotate relative to the vehicle body 1 (see fig. 5).

The child scooter folding mechanism in this embodiment, the structure is simpler, low in manufacturing cost to, the linkage is few, and folding mechanism is less because of the unable normal operating's of certain part probability is broken down, and folding performance is more stable.

In order to limit the axial downward movement of the height adjusting pipe 7 and stably lock the handle assembly in a use state, the handle assembly further comprises a limiting structure for limiting the axial downward movement of the height adjusting pipe 7 and pushing the unlocking block 6 to axially extend outwards, so that the wrong folding scooter under the downward pressing action on the height adjusting pipe 7 when the scooter is normally pushed by children can be effectively avoided. As shown in fig. 4 to 5, the limiting structure includes a limiting post 81, a blocking portion 921 and an elastic member 82, the limiting post 81 is inserted into the peripheral wall of the height adjusting pipe 7 and can extend and retract along the radial direction of the height adjusting pipe 7, the blocking portion 921 is arranged on the height adjusting locking structure and can abut against the lower end of the limiting post 81, the elastic member 82 is arranged inside the height adjusting pipe 7, and the elastic member 82 enables the limiting post 81 to have a moving trend of extending outward along the radial direction of the height adjusting pipe 7 all the time.

As shown in fig. 2, 4 and 5, the height adjusting and locking structure includes an elastic sleeve 91 and an adjusting sleeve 92 screwed to the outside of the elastic sleeve 91, the elastic sleeve 91 is sleeved on the upper end of the fixing tube 3 and is attached to the outer peripheral wall of the height adjusting tube 7 to press the height adjusting tube 7, and the adjusting sleeve 92 is used for adjusting the degree of tension of the elastic sleeve 91 on the height adjusting tube 7. As shown in fig. 4, a stopper 921 is formed at the upper end of the adjustment sleeve 92.

In order to make the height adjustment of the handle assembly more accurate, as shown in fig. 2, a fastening plate 93 is further arranged between the elastic sleeve 91 and the adjusting sleeve 92, the lower end of the fastening plate 93 is hinged to the elastic sleeve 91, a convex rib 931 is arranged at the upper end of the fastening plate 93, and a plurality of clamping grooves 711 for the convex rib 931 to be clamped into are arranged on the outer peripheral wall of the height adjusting pipe 7 at intervals. As shown in fig. 2, in the present embodiment, two racks 71 are fixed to the outer peripheral wall of the height adjusting tube 7, and the gap between the teeth of the racks 71 forms the engaging groove 711. As shown in fig. 2, a third spring 53 is also constrained between the buckle plate 93 and the elastic sleeve 91, and the third spring 53 is used for enabling the buckle plate 93 to have the moving tendency of rotating outwards to enable the convex rib 931 to be disengaged from the clamping groove 711.

In order to enable the unlocking block 6 to axially extend and retract along a preset track in the inner cavity, as shown in fig. 4-5 and 7, a strip-shaped hole 61 is formed in the unlocking block 6, through which the rotating shaft 10 penetrates and which axially extends along the positioning hole 21.

The theory of operation of children's scooter receipts car mechanism in this embodiment does:

when the child scooter is in a normal use state, the positioning hole 21 is opposite to the first inner cavity 111, the first positioning block 41 is inserted into the positioning hole 21, the height adjusting tube 7 is separated from the unlocking block 6, so that the unlocking block 6 cannot be pressed down, and the handle assembly is locked in a use state (see fig. 4); at this time, the tensioning effect of the elastic sleeve 91 on the height adjusting tube 7 can be adjusted by rotating the adjusting sleeve 92, so that the height adjusting tube 7 can axially slide in the inner cavity 22 and be clamped into different clamping grooves 711, and the height of the handle assembly of the scooter can be adjusted to adapt to the height of a child; when the height of the handle assembly is adjusted to a proper axial length, the adjusting sleeve 92 is rotated reversely, so that the squeezing action of the elastic sleeve 91 on the height adjusting tube 7 is increased to increase the friction force between the height adjusting tube 7 and the fixing tube 3, and the axial relative positions of the height adjusting tube 7 and the fixing tube 3 are fixed to lock the height of the handle assembly.

When the child scooter needs to be folded, the adjusting sleeve 92 is rotated, so that the height adjusting tube 7 can axially slide in the inner cavity 22 to the lower end of the limiting column 81 to abut against the adjusting sleeve 92, and at the moment, the height adjusting tube 7 and the unlocking block 6 are still in a separated state (see fig. 4); the limiting column 81 is pressed to enable the limiting column 81 to move inwards along the radial direction of the height adjusting pipe 7, the height adjusting pipe 7 can move downwards in the inner cavity 22 in the axial direction to press the unlocking block 6 downwards, the unlocking block 6 extends outwards in the positioning hole 21 in the axial direction to push the first positioning block 41 out of the positioning hole 21, and the handle assembly is unlocked to enable the handle assembly and the vehicle folding joint 2 to rotate freely relative to the vehicle body 1 (see figure 5); when the handle assembly and the vehicle folding joint 2 are rotated to be substantially parallel to the vehicle body 1 so that the positioning hole 21 is opposite to the second inner cavity 112, the height adjusting tube 7 is axially moved upwards to axially retract the unlocking block 6 in the positioning hole 21, so that the second positioning block 42 enters the positioning block 21 under the pushing action of the second spring 52, and the handle assembly is locked in the vehicle folding state (see fig. 7).

It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A folding mechanism of a child scooter comprises:

a vehicle body (1),

the handle assembly comprises a fixed pipe (3) and a height adjusting pipe (7) which is inserted into the fixed pipe (3) and can axially slide, a handle is arranged at the upper end of the height adjusting pipe (7), and a height adjusting locking structure is arranged between the fixed pipe (3) and the height adjusting pipe (7);

it is characterized by also comprising

The folding joint (2) is hinged with the vehicle body (1), a cavity is formed in the folding joint, the fixing pipe (3) is fixed in the cavity, and a positioning hole (21) communicated with the cavity is formed in the peripheral wall of the folding joint (2);

a first positioning block (41) which is mounted on the vehicle body (1) and can be inserted into the positioning hole (21) to lock the handle assembly in a use state;

a first spring (51) which enables the first positioning block (41) to always have the movement tendency of being inserted into the positioning hole (21);

the second positioning blocks (42) are arranged on the vehicle body (1), are distributed in the circumferential direction of the vehicle folding joint (2) at intervals with the first positioning blocks (41), and can be inserted into the positioning holes (21) to lock the handle assembly in a vehicle folding state;

a second spring (52) which enables the second positioning block (42) to always have the movement tendency of being inserted into the positioning hole (21);

the unlocking block (6) can be axially and telescopically arranged in the cavity, and the axial sliding of the height adjusting pipe (7) can drive the unlocking block (6) to axially extend outwards so as to enable the first positioning block (41) or the second positioning block (42) to be separated from the positioning hole (21), so that the handle assembly is unlocked and can freely rotate relative to the vehicle body (1).

2. The child's scooter stowing mechanism of claim 1, wherein: the handle assembly further comprises a limiting structure used for limiting the height adjusting pipe (7) to move downwards in the axial direction so as to push the unlocking block (6) to extend outwards in the axial direction.

3. The child's scooter stowing mechanism according to claim 2, wherein: spacing structure includes spacing post (81), fender portion (921) and elastic component (82), wear to locate spacing post (81) on the perisporium of altitude mixture control pipe (7) and can follow the radial flexible of altitude mixture control pipe (7), fender portion (921) is located altitude mixture control locking structure go up and with the lower extreme of spacing post (81) offsets, elastic component (82) make spacing post (81) have all the time along the radial overhanging motion trend of altitude mixture control pipe (7).

4. The child's scooter stowing mechanism of claim 3, wherein: height adjustment locking structure include elasticity cover (91) and threaded connection in the outside adjusting collar (92) of elasticity cover (91), elasticity cover (91) cup joint in fixed pipe (3) upper end and with the periphery wall laminating of height control pipe (7) mutually, adjusting collar (92) are used for adjusting elasticity cover (91) are right the tensioning degree of height control pipe (7).

5. The child's scooter stowing mechanism of claim 4, wherein: a buckle plate (93) is further arranged between the elastic sleeve (91) and the adjusting sleeve (92), one end of the buckle plate (93) is hinged with the elastic sleeve (91), a convex rib (931) is arranged at the other end of the buckle plate (93), and a plurality of clamping grooves (711) for the convex rib (931) to be clamped into are formed in the outer peripheral wall of the height adjusting pipe (7) at intervals; and a third spring (53) is restrained between the buckling plate (93) and the elastic sleeve (91), and the third spring (53) enables the buckling plate (93) to have a movement trend of rotating outwards to enable the convex rib (931) to be separated from the clamping groove (711).

6. The child's scooter stowing mechanism of claim 4, wherein: the upper end of the adjusting sleeve (92) forms the blocking part (921).

7. The child's scooter stowing mechanism of claim 1, wherein: the folding joint (2) comprises a hinge part (22) positioned at the lower part and an insertion part (23) positioned at the upper part, the hinge part (22) is flat, the peripheral wall of the hinge part is an arc surface, the positioning hole (21) is arranged on the hinge part (22), and the insertion part (23) is tubular.

8. The child's scooter stowing mechanism of claim 1, wherein: the folding joint (2) is hinged to the trolley body (1) through a rotating shaft (10), and a strip-shaped hole (61) for the rotating shaft (10) to penetrate and extend along the axial direction of the positioning hole (21) is formed in the unlocking block (6).

9. The child's scooter stowing mechanism of claim 1, wherein: the vehicle body (1) comprises a base (11) and a cover plate (12) which are connected with each other, and the vehicle folding joint (2) is hinged with the base (11) and penetrates out of the cover plate (12); the folding mechanism is characterized in that a first inner cavity (111) and a second inner cavity (112) are arranged on the base (11) and are distributed at intervals along the circumferential direction of the folding joint (2), the first positioning block (41) and the first spring (51) are installed in the first inner cavity (111), and the second positioning block (42) and the second spring (52) are installed in the second inner cavity (112).

10. The child's scooter stowing mechanism of claim 1, wherein: the first positioning block (41) is arranged along the vertical direction basically, and the second positioning block (42) is arranged along the horizontal direction basically.