CN214189776U

CN214189776U - Folding type cart

Info

Publication number: CN214189776U
Application number: CN202120094437.1U
Authority: CN
Inventors: 杨樊; 叶书宏; 蒋坤德; 曾东
Original assignee: Kubbaby Mother And Baby Products Co ltd
Current assignee: Kubbaby Mother And Baby Products Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-14
Anticipated expiration: 2031-01-13

Abstract

A folding type cart comprises a front frame unit, a rear frame unit, a handle unit, a seat unit and a pin joint, wherein the front frame unit, the rear frame unit, the handle unit and the seat unit are all connected to the pin joint, after acting force is applied to the handle unit, the handle unit and the rear frame unit are linked to be turned to the front frame unit, and the cart is turned to be a folding state from a using state. The utility model discloses simple structure, front stall unit, after-poppet unit, handle unit, seat unit pass through the pin joint festival and connect integratively, and the pin joint festival hides in the seat unit below, and overall structure is pleasing to the eye, and only can make after-poppet unit, handle unit, seat unit linkage through acting on the handle unit, accomplishes folding operation fast, has very strong operation and feels.

Description

Folding type cart

Technical Field

The utility model relates to an infant's shallow field, concretely relates to folding type shallow.

Background

Most of the existing folding carts adopt a front-rear double-wheel structure for maintaining stability, namely, the folding carts are provided with a pair of front wheels and a pair of rear wheels, and the cart body can be folded by arranging folding devices on the front wheels and the rear wheels; however, the folding structure of the existing stroller is basically operated independently, i.e. when folding, the front wheel folding device needs to be operated to fold the front wheel first, and then the rear wheel folding device needs to be operated to fold the rear wheel, so that the operation steps are multiple, and the folding is very inconvenient.

SUMMERY OF THE UTILITY MODEL

According to the problem that the background art provided, the utility model provides a folding type shallow solves, it is right next the utility model discloses do further to explain.

A folding type cart comprises a front frame unit, a rear frame unit, a handle unit, a seat unit and a pin joint section, wherein the front frame unit comprises a front frame main body, and two sides of the front frame main body are pin-jointed with two front rollers; the rear frame unit comprises a rear frame main body, and two rear rollers are pivoted on two sides of the rear frame main body; the handle unit comprises a push rod and a holding rod connected with the push rod; the seat unit is pivoted on the pivoting joint; the pivoting joint comprises a pivoting body connected with the front frame main body, a movable cavity is arranged in the pivoting body, a seat pivoting seat and a handle pivoting seat are arranged at two ends of the pivoting body, and a rear frame pivoting cavity is arranged in the middle of the pivoting body; the top end of the rear frame main body is pivoted at the rear frame pivoting cavity, and a rear frame lug is arranged at the top end of the rear frame main body; the lower end of the push rod is pivoted with the handle pivoting seat; the end part of the push rod is provided with a handle lug which is pivoted to a rear frame lug through a connecting rod; after acting force is applied to the handle unit, the handle unit and the rear frame unit are linked to rotate to the front frame unit, and the cart is converted from a use state to a folded state.

Preferably, when the grip is pushed, the push rod is in contact with a surface of the end surface of the pivot joint to push the cart forward.

Preferably, the seat unit comprises a base, a bearing part is pivoted on the base, the seat unit further comprises a fence, the fence is respectively pivoted to the base and the bearing part through two supporting parts, and the base, the bearing part, the fence and the supporting parts form a movable connecting body; when folding and taking in, the connecting body is deformed at the pivot joint, and the rail is attached to the base, so that the occupation of space is reduced.

Preferably, in the use state, bolt fasteners penetrate through the pivoting parts of the base and the supporting part, the supporting part and the rail, and the rail and the bearing part; when the movable body is used, the pin joint is fixed, and the movable body can be stabilized under the impact of external force.

Preferably, the joint of the bearing part and the base is in an arc shape, the push rod and the pivot body are in an arc shape when in surface contact, the bearing part and the base are attached to the push rod and the pivot body, and the two arc parts are attached to each other; the seat unit is stable under the action of the two supporting points at the joint part and the pin joint part pivoted with the seat pin joint seat, and the whole gravity acts between the two supporting points after the infant is placed on the seat unit, so that the whole stress stability is strong.

Preferably, the connecting rod and the rear frame lug are in a ladder shape in a use state, the top of the connecting rod is horizontal in the use state, and the bottom of the seat unit is contacted with the horizontal top of the connecting rod; the ladder-shaped structure formed by the connecting rod and the rear frame lug has good pressure resistance and forms a third supporting point for the seat unit.

Preferably, the pivot body is further provided with a limiting part in the movable cavity, and in a use state, the rear frame lug leans against the limiting part, namely, the left side and the right side of the ladder-shaped structure formed by the connecting rod and the rear frame lug are stabilized under the action of the limiting part and the handle lug.

Preferably, the middle part of the limiting part is provided with a position avoiding groove, the lug of the rear frame is connected with a top block, and the top block is positioned below the seat unit after crossing the position avoiding groove; the linkage folding of the rear frame unit, the handle unit and the seat unit is realized, and the efficiency of the folding device is greatly improved compared with that of the existing split folding device.

Has the advantages that: compared with the prior art, the utility model has simple structure, the front frame unit, the rear frame unit, the handle unit and the seat unit are connected into a whole through the pin joint, the pin joint is hidden under the seat unit, the whole structure is beautiful, the rear frame unit, the handle unit and the seat unit can be linked only by acting on the handle unit, the folding operation can be completed quickly, and the folding chair has strong operation feeling; the utility model discloses still can avoid a large amount of uses of fastener, it is convenient to install and dismantle.

Drawings

FIG. 1: the structure of the utility model is shown schematically;

FIG. 2: the utility model is a structural explosion diagram;

FIG. 3: the structure at A in FIG. 2 is enlarged schematically;

FIG. 4: the utility model is also a schematic diagram of the structure explosion;

FIG. 5: the structure at B in FIG. 4 is an enlarged schematic view;

FIG. 6: the utility model has a schematic structure view after the seat unit is removed;

FIG. 7: the structure at C in FIG. 6 is enlarged;

FIG. 8: the utility model has another schematic structure diagram after the seat unit is removed;

FIG. 9: the structure at D in fig. 8 is an enlarged schematic view;

in the figure: a front frame unit 10, a front frame main body 11, a front roller 12; a rear frame unit 20, a rear frame body 21, a rear roller 22, a rear frame lug 23, a top block 24 and a pedal 25; a handle unit 30, a push rod 31, a holding rod 32, a handle lug 33 and a connecting rod 34; a seat unit 40, a base 41, a load bearing part 42, a rail 43, a support part 44, and a pivot 45; pivot joint 50, pivot body 51, activity cavity 52, seat pivot seat 53, handle pivot seat 54, rear frame pivot chamber 55, spacing portion 56, avoiding the position groove 561.

Detailed Description

A specific embodiment of the present invention will be described in detail with reference to fig. 1-8.

A folding-type stroller includes a front frame unit 10, a rear frame unit 20, a handle unit 30, a seat unit 40, and a pivot joint 50, wherein,

the front frame unit 10 includes a front frame body 11, two front rollers 12 are pivotally connected to two sides of the front frame body 11, the front rollers 12 can rotate relative to the front frame body 11 to change the traveling direction, the upper end of the front frame body 11 is fixedly connected to a pivot joint 50, and the rear frame unit 20, the seat unit 40, and the handle unit 30 are pivotally connected to the pivot joint 50 to form a foldable linked cart.

The pivoting joint 50 comprises a pivoting body 51 integrated with the front frame main body 11, a movable cavity 52 is arranged inside the pivoting body 51, a seat pivoting seat 53 and a handle pivoting seat 54 are arranged at two ends of the pivoting body 51, and a rear frame pivoting cavity 55 is arranged in the middle of the pivoting body;

the rear frame unit 20 includes a rear frame main body 21, two rear rollers 22 are pivotally connected to two sides of the rear frame main body 21, the rear rollers 22 can rotate relative to the rear frame main body 21 to change the traveling direction, the top end of the rear frame main body 21 is pivotally connected to a rear frame pivot cavity 55, a rear frame lug 23 is arranged at the top end of the rear frame main body 21, and the rear frame lug 23 is located in the movable cavity 52.

The handle unit 30 comprises a push rod 31 and a holding rod 32 connected to the push rod 31, the lower end of the push rod 31 is pivoted at a handle pivoting seat 54 of the pivoting joint 50, and in the relative rotation process of the push rod 31 and the handle pivoting seat 54, the end surface of the push rod 31 is in contact with or not in contact with the end surface of the pivoting joint 50, and when the holding rod 32 is pushed, the cart is pushed to advance through the surface contact of the push rod 31 and the end surface of the pivoting joint 50; the end middle portion of the push rod 31 is provided with a handle lug 33, and the handle lug 33 is pivoted to the rear frame lug 23 of the rear frame unit 20 through a connecting rod 34, so that the handle unit 30 is linked with the rear frame unit 20.

The seat unit 40 is pivotally connected to the seat pivot base 53 of the pivot joint 50 by a pivot shaft provided at the bottom thereof.

When the folding state is formed, the handle unit 30 is pressed downwards, so that the handle unit 30 rotates towards the front frame unit 10 by taking the handle pivot seat 54 as a shaft, the push rod 31 is out of surface contact with the end surface of the pivot joint 50, the synchronously rotating handle lugs 33 pull the connecting rod 34, and further the connecting rod 34 pulls the rear frame lugs 23, so that the rear frame unit 20 rotates towards the front frame unit 10 by taking the rear frame pivot cavity 55 as a shaft, and the final effect is that the handle unit 30 is pressed downwards, and meanwhile, the handle unit 30 and the rear frame unit 20 are linked to rotate towards the front frame unit 10 and are folded side by side with the front frame unit 10, so that the space occupation is reduced.

To further reduce the space occupied after folding, the seat unit 40 can be folded as follows: the seat unit 40 comprises a base 41, a bearing part 42 pivoted on the base 41, and a rail 43, wherein the rail 43 is respectively pivoted to the base 41 and the bearing part 42 through two supporting parts 44 to form a movable connecting body, and an infant is placed in the seat unit 40; when the foldable.

After the baby is placed, as is well known, the baby moves well, and inertia in braking in the pushing process causes the baby to impact on the movable connecting body, and the movable body deforms, that is, the seat unit 40 is unstable, so that the safety of the baby cannot be ensured, therefore, in the embodiment, bolt fasteners penetrate through the pivoting positions of the base 41 and the supporting portion 44, the supporting portion 44 and the rail 43, and the rail 43 and the bearing portion 42, and the pivoting positions are fixed when the baby is used, and the movable body can be stable under the impact of external force.

The connection part of the bearing part 42 and the base 41 is arc-shaped, the push rod 31 and the pivoting body 51 are arc-shaped when in surface contact, the bearing part 42 and the base 41 are attached to the push rod 31 and the pivoting body 51, the two arc-shaped parts are attached, the seat unit 40 is stable at the attaching part and two support points at the pivoting part pivoted with the seat pivoting seat 53, and after the infant is placed on the seat unit 40, the whole gravity acts between the two support points, so that the whole stress stability is strong.

Similarly, to further enhance the stability, the pivotal connection between the seat unit 40 and the seat pivotal seat 53 is also fastened by a bolt fastener.

Furthermore, the connecting rod 34 and the rear frame lug 23 are in a ladder shape in the using state, the top of the connecting rod 34 is horizontal in the using state, the bottom of the seat unit 40 is in contact with the horizontal top of the connecting rod 34, and the ladder-shaped structure formed by the connecting rod 34 and the rear frame lug 23 has good pressure resistance and forms a third supporting point for the seat unit 40 according to the mechanical structure; the pivot body 51 is further provided with a limiting part 56 in the movable cavity 52, and in a use state, the rear frame lug 23 leans against the limiting part 56, that is, the left side and the right side of the ladder-shaped structure formed by the connecting rod 34 and the rear frame lug 23 are stabilized under the action of the limiting part 56 and the handle lug 33.

In this embodiment, a spacing groove 561 is disposed in the middle of the limiting portion 56, a top block 24 is connected to the rear frame lug 23, and the top block 24 crosses the spacing groove 561 and is located below the seat unit 40; when folding, according to the foregoing description, the handle lug 33 pulls the rear frame lug 23 to rotate through the connecting rod 34, the handle unit 30 is linked with the rear frame unit 20, the rotating rear frame lug 23 drives the top block 24 to rotate, and the rotating top block 24 jacks up the seat unit 40, so that the seat unit 40 rotates by the pivot 45 pivoted on the seat pivoting seat 53, that is, the rear frame unit 20, the handle unit 30 and the seat unit 40 are folded in a linked manner, and the efficiency is greatly improved compared with the existing split folding.

According to the foregoing explanation, the present invention can be stabilized by the structure of the front frame unit 10, the rear frame unit 20, and the handle unit 30 without the fastener, but the fastener is not prevented from being added at the pivot joint to fix the front frame unit, the rear frame unit 20, and the handle unit 30, or the button can be provided at the pivot joint, and the button is fixed or released by controlling the button, so that the implementation manner is the conventional technology, and the present embodiment is not further explained.

According to the habit of different users, the sitting posture of the infant in the sitting unit 40 is different, and in this embodiment, the rear frame body 21 and/or the push rod 31 are provided with pedals 25 for placing the feet of the infant.

The height of the handle unit 30 can be adjusted by adjusting the length of the portion of the holding rod 32 in the pushing rod 31, which is realized by conventional technology, and this embodiment is not further described.

The utility model discloses simple structure, front frame unit 10, after-frame unit 20, handle unit 30, seat unit 40 are connected integratively through pivot joint 50, and pivot joint 50 hides below seat unit 40, and overall structure is pleasing to the eye, and just can make after-frame unit 20, handle unit 30, seat unit 40 linkage through acting on handle unit 30, accomplish folding operation fast, have very strong operation sense; the utility model discloses still can avoid a large amount of uses of fastener, it is convenient to install and dismantle.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding type cart comprises a front frame unit (10), a rear frame unit (20), a handle unit (30), a seat unit (40) and a pivoting joint (50), wherein the front frame unit (10) comprises a front frame main body (11), and two front rollers (12) are pivoted on two sides of the front frame main body (11); the rear frame unit (20) comprises a rear frame main body (21), and two rear rollers (22) are pivoted on two sides of the rear frame main body (21); the handle unit (30) comprises a push rod (31) and a holding rod (32) connected to the push rod (31); the seat unit (40) is pivoted on the pivoting joint (50); the method is characterized in that:

the pivoting joint (50) comprises a pivoting body (51) connected with the front frame main body (11), a movable cavity (52) is arranged inside the pivoting body (51), two ends of the pivoting body (51) are provided with a seat pivoting seat (53) and a handle pivoting seat (54), and the middle part of the pivoting body is provided with a rear frame pivoting cavity (55);

the top end of the rear frame main body (21) is pivoted at a rear frame pivoting cavity (55), and a rear frame lug (23) is arranged at the top end of the rear frame main body (21); the lower end of the push rod (31) is pivoted with the handle pivoting seat (54); the end part of the push rod (31) is provided with a handle lug (33), and the handle lug (33) is pivoted to the rear frame lug (23) through a connecting rod (34);

when an acting force is applied to the handle unit (30), the handle unit (30) and the rear frame unit (20) are linked and turned to the front frame unit (10), and the cart is turned from the use state to the folded state.

2. The folding-style cart of claim 1, wherein: when the holding rod (32) is pushed, the push rod (31) pushes the cart to advance in a mode of surface contact with the end face of the pivoting joint (50).

3. The folding-style cart of claim 1, wherein: the seat unit (40) comprises a base (41), a bearing part (42) and a fence (43), wherein the bearing part (42) is pivoted on the base (41), the fence (43) is respectively pivoted to the base (41) and the bearing part (42) through two supporting parts (44), and the base (41), the bearing part (42), the fence (43) and the supporting parts (44) form a movable connecting body.

4. The fold-style cart of claim 3, wherein: in the using state, bolt fasteners penetrate through the pivoting parts of the base (41) and the supporting part (44), the supporting part (44) and the rail (43), and the rail (43) and the bearing part (42).

5. The folding-type cart of claim 3 or 4, wherein: the connection part of the bearing part (42) and the base (41) is arc-shaped, the push rod (31) and the pivoting body (51) are also arc-shaped when in surface contact, the bearing part (42) and the base (41) are attached to the push rod (31) and the pivoting body (51), and the two arc-shaped parts are attached.

6. The folding-style cart of claim 1, wherein: the connecting rod (34) and the rear frame lug (23) are in a trapezoid shape in a use state, the top of the connecting rod (34) is horizontal, and the bottom of the seat unit (40) is in contact with the horizontal top of the connecting rod (34).

7. The folding-style cart of claim 1, wherein: the pivot joint body (51) is also provided with a limiting part (56) in the movable cavity (52), and the lug (23) of the rear frame leans against the limiting part (56) in the use state.

8. The folding-style cart of claim 7, wherein: spacing groove (561) are equipped with in spacing portion (56) middle part, are connected with kicking block (24) on back frame lug (23), and kicking block (24) are located the below of seating unit (40) after crossing spacing groove (561).