CN211167040U

CN211167040U - Shallow

Info

Publication number: CN211167040U
Application number: CN201921751525.3U
Authority: CN
Inventors: 马福生; 张阳
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-04
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to a cart, which comprises a vehicle rack, whole car locking mechanical system, the frame includes the chassis, connect the push rod subassembly on the chassis, connect the preceding handrail assembly on the push rod subassembly, the push rod subassembly includes the push rod down, the lower link, upper tie and connecting rod, the push rod down, the lower extreme of lower link rotates with the chassis respectively to be connected, the one end of upper tie rotates with the upper end of lower link to be connected, the other end rotates with the upper end of lower link to be connected, preceding handrail assembly slidable ground is connected on the push rod down, the one end and the preceding handrail assembly of connecting rod rotate to be connected, the other end rotates with the lower link to be connected, when the frame is folding, the push rod down, the lower link draws close to the chassis to the rotation of below in the back, handrail assembly slides. The utility model discloses a handrail subassembly slides on push rod down before four link mechanism drive, realizes the linkage and folds up, and the whole car is more flattened after folding up, and it is small to take up an area of, conveniently collects and carries, its simple structure, convenient operation.

Description

Shallow

Technical Field

The utility model relates to a children's articles for use field especially relates to a shallow.

Background

The stroller is the most common product of children products, and the structure of the stroller is more and more diversified. The stroller structure in the prior art generally includes necessary structures such as a front frame, a rear frame, a seat plate, a handrail, and a push handle rod, and in order to match with the folding of the stroller, more rod members are added to the necessary structures, which also makes the structure more complicated and the operation more cumbersome, so that a stroller with a simple structure, convenient operation, and a smaller folding volume is required.

Disclosure of Invention

The utility model aims at providing a shallow.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a cart, including the frame that has expansion state, fold condition, with the frame lock in the whole car locking mechanical system of expansion state, the frame include the chassis, connect push rod assembly on the chassis, connect the push rod assembly on preceding handrail assembly, push rod assembly including be located respectively the cart about push rod, lower link, upper tie and connecting rod of both sides, the lower extreme of lower link, lower link respectively with the chassis rotate to be connected, the one end of upper link with the upper end of lower link rotate to be connected, the other end of upper link with the upper end of lower link rotate to be connected, preceding handrail assembly slidable ground connect on the lower link, the one end of connecting rod with preceding handrail assembly rotate to be connected, the other end of connecting rod with the lower link rotate to be connected, when the frame is converted from an unfolded state to a folded state, the lower push rod and the lower pull rod rotate backwards and downwards to be close to the underframe, and the connecting rod drives the front handrail assembly to slide on the lower push rod.

Preferably, the push rod assembly further comprises upper push rods respectively positioned at the left side and the right side of the cart, the lower ends of the upper push rods are rotatably connected with the upper ends of the lower push rods, and when the frame is in an unfolded state, the extension directions of the upper push rods and the lower push rods are the same; when the frame is converted from the unfolding state to the folding state, the upper push rod rotates forwards and downwards to be close to the lower push rod.

Further preferably, the front armrest assembly comprises a front armrest seat slidably connected to the lower push rods on both sides, a front armrest rotatably connected to the front armrest seat, and an armrest locking mechanism for locking the front armrest seat and the front armrest, wherein when the frame is in the unfolded state, the armrest locking mechanism is locked, and the front armrest seat and the front armrest are fixed relative to each other; when the frame is converted from an unfolded state to a folded state, and the front armrest seat slides on the lower push rod, the armrest locking mechanism is unlocked, and the front armrest can rotate downwards to be close to the lower push rod.

Further preferably, the upper push rod rotates forwards and downwards to drive the front handrail to rotate downwards, and when the frame is in a folded state, the front handrail is folded between the upper push rods on the two sides.

Further preferably, the armrest locking mechanism includes a locking block disposed between the front armrest seat and the front armrest, a locking groove disposed in the front armrest, an elastic member connected between the locking groove and the locking block, an insertion block driving the locking block to be inserted into the locking groove, and a fixing seat fixedly disposed on the lower push rod, one end of the insertion block has an insertion inclined surface, the locking block has a matching inclined surface therein, the insertion block is inserted into the locking block, the insertion inclined surface of the insertion block is slidably matched with the matching inclined surface of the locking block, and the other end of the insertion block can abut against the fixing seat,

when the frame is in an unfolded state, the other end of the inserting block is abutted against the fixed seat, the locking block is inserted into the locking groove of the front armrest, the elastic piece is pressed, and the front armrest seat and the front armrest are relatively fixed; when the front armrest seat slides on the lower push rod, the other end of the inserting block is separated from the fixed seat, the inserting inclined surface of the inserting block and the matching inclined surface of the locking block slide relatively, the elastic piece rebounds to make the locking block separated from the locking groove of the front armrest, and the front armrest can rotate relative to the front armrest seat.

Preferably, when the frame is in the unfolded state, the rotation connection point of the lower push rod and the underframe is positioned in front of the rotation connection point of the lower pull rod and the underframe.

Preferably, the chassis including be located respectively the shallow left and right sides preceding frame, back frame and frame connecting rod, the lower extreme of preceding frame, back frame be connected with the wheel, the upper end of preceding frame, back frame rotate to be connected, the frame connecting rod connect preceding frame, back frame between, the lower extreme of push down rod with the upper end of preceding frame and/or back frame rotate to be connected, the lower extreme of pull down rod with the middle part of back frame rotate to be connected, when the frame convert to fold condition from the expansion state, preceding frame, back frame draw close each other.

Preferably, the frame connecting rod comprises a front frame connecting rod and a rear frame connecting rod, the front end of the front frame connecting rod is rotatably connected with the front frame, the rear end of the front frame connecting rod is rotatably connected with the front end of the rear frame connecting rod, and the rear end of the rear frame connecting rod is rotatably connected with the rear frame.

Further preferably, the lower end of the lower pull rod is rotatably and slidably connected to the rear frame link.

Preferably, the cart further comprises a seat plate assembly, the seat plate assembly comprises a seat plate body, a seat plate front connecting rod and a seat plate rear connecting rod, one end of the seat plate front connecting rod is rotatably connected with the seat plate body, and the other end of the seat plate front connecting rod is rotatably connected with the underframe; one end of the seat plate rear connecting rod is rotatably connected with the seat plate body, and the other end of the seat plate rear connecting rod is rotatably connected with the lower pull rod.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a handrail subassembly slides on push rod down before four link mechanism drive, realizes the linkage and folds up, and the whole car is more flattened after folding up, and it is small to take up an area of, conveniently collects and carries, its simple structure, convenient operation.

Drawings

FIG. 1 is a schematic view of the present embodiment in an expanded state;

FIG. 2 is a schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of the present embodiment in a semi-folded state;

FIG. 4 is a first schematic view of the present embodiment in a folded state;

FIG. 5 is a second schematic view of the present embodiment in a folded state;

FIG. 6 is a partial schematic view of the present embodiment in a semi-folded state;

FIG. 7 is a partial schematic view of the present embodiment in a deployed state;

FIG. 8 is a schematic cross-sectional view B-B of FIG. 7.

Wherein: 10. a front frame; 11. a rear frame; 12. a wheel; 13. a frame rail; 14. a front frame link; 15. a rear frame link; 20. a push rod is arranged; 21. a lower push rod; 22. a lower pull rod; 23. an upper pull rod; 24. a connecting rod; 30. a front armrest seat; 31. a front armrest; 320. a fixed seat; 321. inserting a block; 322. a locking block; 323. locking the groove; 324. an elastic member; 325. inserting the bevel; 326. a mating bevel; 40. a seat plate body; 41. a seat plate front connecting rod; 42. a seat board rear connecting rod.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The cart shown in the figure comprises a frame with an unfolded state and a folded state, and a whole cart locking mechanism for locking the frame in the unfolded state.

The frame comprises a bottom frame, a push rod assembly connected to the bottom frame, a front handrail assembly connected to the push rod assembly and a seat board assembly. Wherein:

the underframe comprises a front frame 10, a rear frame 11 and frame connecting rods which are respectively positioned at the left side and the right side of the cart. The lower ends of the front frame 10 and the rear frame 11 are connected with wheels 12, the upper ends of the front frame 10 and the rear frame 11 are rotatably connected, and the upper ends of the front frame 10 and the rear frame 11 on the two sides are connected through a frame cross rod 13. The frame connecting rod is connected between the front frame 10 and the rear frame 11 and specifically comprises a front frame connecting rod 14 and a rear frame connecting rod 15, wherein the front end of the front frame connecting rod 14 is rotatably connected with the front frame 10, the rear end of the front frame connecting rod 14 is rotatably connected with the front end of the rear frame connecting rod 15, and the rear end of the rear frame connecting rod 15 is rotatably connected with the rear frame 11.

The push rod assembly includes an upper push rod 20, a lower push rod 21, a lower pull rod 22, an upper pull rod 23 and a connecting rod 24 respectively located at the left and right sides of the cart. As shown in fig. 2: the lower end of the upper push rod 20 is rotatably connected with the upper end of the lower push rod 21 through a rotating point A, the lower end of the lower push rod 21 is rotatably connected with the upper ends of the front frame 10 and the rear frame 11 of the underframe through a rotating point D, the lower end of the lower pull rod 22 is rotatably connected with the middle part of the rear frame 11 through a rotating point C, the lower end of the lower pull rod 22 is rotatably and slidably connected with the rear frame connecting rod 15, one end of the upper pull rod 23 is also rotatably connected with the upper end of the lower pull rod 21 through a rotating point A, and the other end of the upper pull rod 23 is rotatably connected with the upper end of the lower pull rod 23 through. The rods between the turning points A, B, C, D form a four bar linkage. The front handrail assembly is slidably connected to the lower push rod 21, one end of the connecting rod 24 is rotatably connected to the front handrail assembly through a rotation point F, and the other end of the connecting rod 24 is rotatably connected to the lower push rod 22 through a rotation point E.

The front handle assembly includes a front handle seat 30 slidably coupled to the two side push-down rods 21, a front handle 31 rotatably coupled to the front handle seat 30 through a pivot point G, and a handle locking mechanism for locking the front handle seat 30 and the front handle 31. When the frame is in the unfolding state, the handrail locking mechanism is locked, and the front handrail seat 30 and the front handrail 31 are relatively fixed; when the frame is switched from the unfolded state to the folded state and the front armrest seat 30 slides on the lower push rod 21, the armrest locking mechanism is unlocked, and the front armrest 31 can rotate downward to approach the lower push rod 21.

In this embodiment: as shown in fig. 6-8: the armrest locking mechanism comprises a locking block 322 arranged between the front armrest seat 30 and the front armrest 31, a locking groove 323 arranged in the front armrest 31, an elastic piece 324 connected between the locking groove 323 and the locking block 322, an inserting block 321 for driving the locking block 322 to be inserted into the locking groove 323, and a fixed seat 320 fixedly arranged on the lower push rod 21, wherein one end of the inserting block 321 is provided with an inserting inclined surface 325, a matching inclined surface 326 is arranged in the locking block 322, the inserting block 321 is inserted into the locking block 322, the inserting inclined surface 325 of the inserting block 321 is slidably matched with the matching inclined surface 326 of the locking block 322, and the other end of the inserting block 321 can be abutted against the fixed seat 320. The armrest locking mechanism is not the point of the invention of the present application, but only one embodiment is given, and other locking mechanisms with equivalent effects are possible.

The cart also comprises a seat plate component, the seat plate component comprises a seat plate body 40, a seat plate front connecting rod 41 and a seat plate rear connecting rod 42, one end of the seat plate front connecting rod 41 is rotatably connected with the seat plate body 40, and the other end of the seat plate front connecting rod 42 is rotatably connected with the frame cross rod 13 of the underframe; one end of the seat plate rear link 42 is rotatably connected to the seat plate body 40, and the other end of the seat plate rear link 42 is rotatably connected to the lower link 22.

The whole vehicle locking mechanism is not the invention point of the application, and the vehicle frame can be locked, so that the detailed description is omitted.

As shown in fig. 1: the whole vehicle locking mechanism is locked, the vehicle frame is in an unfolded state, all rod pieces are relatively fixed, at the moment, the extending directions of a front vehicle frame connecting rod 14 and a rear vehicle frame connecting rod 15 of the vehicle frame are the same (positioned on a straight line), and the extending directions of an upper push rod 20 and a lower push rod 21 are also the same (positioned on a straight line); in the armrest locking mechanism, the other end of the insertion block 321 is abutted against the fixed seat 320, the locking block 322 is inserted into the locking groove 323 of the front armrest 31, the elastic piece 324 is pressed, and the front armrest seat 30 and the front armrest 31 are relatively fixed.

As shown in fig. 3: the whole vehicle locking mechanism is unlocked, the lower push rod 21 and the lower pull rod 22 rotate towards the rear lower direction to be close to the rear vehicle frame 11, the connecting rod 24 drives the front armrest seat 30 to slide upwards on the lower push rod 21, the other end of the inserting block 321 is separated from the fixed seat 320, the inserting inclined plane 325 of the inserting block 321 and the matching inclined plane 326 of the locking block 322 slide relatively, the elastic piece 324 rebounds to enable the locking block 322 to be separated from the locking groove 323 of the front armrest, the armrest locking mechanism is unlocked, the upper push rod 20 rotates towards the front lower direction to be close to the lower push rod 21, the front armrest 31 is driven to rotate downwards after a certain angle is reached, and the front vehicle frame 10 and the rear vehicle frame 11 are close.

As shown in fig. 4 and 5, the entire vehicle is folded, and the front arm rests 31 are folded between the push rods 20 on both sides.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a cart, including the frame that has expansion state, fold condition, general the frame lock in the whole car locking mechanical system of expansion state, the frame include the chassis, connect the chassis on push rod assembly, connect push rod assembly on preceding handrail assembly, its characterized in that: push rod subassembly including being located respectively the shallow left and right sides the push down link, lower link, upper boom and connecting rod, the lower extreme of lower push rod, lower link respectively with the chassis rotate to be connected, the one end of upper boom with the upper end of lower link rotate to be connected, the other end of upper boom with the upper end of lower link rotate to be connected, preceding handrail subassembly slidable connect the lower push rod on, the one end of connecting rod with preceding handrail subassembly rotate to be connected, the other end of connecting rod with the lower link rotate to be connected, work as the frame when expanding state to fold condition conversion, lower push rod, lower link to the rear below rotatory with the chassis draw close together, the connecting rod drive preceding handrail subassembly slide on the lower link.

2. A cart according to claim 1, wherein: the push rod assembly further comprises upper push rods which are respectively positioned at the left side and the right side of the cart, the lower ends of the upper push rods are rotatably connected with the upper ends of the lower push rods, and when the frame is in an unfolded state, the extension directions of the upper push rods and the lower push rods are the same; when the frame is converted from the unfolding state to the folding state, the upper push rod rotates forwards and downwards to be close to the lower push rod.

3. A cart according to claim 2, wherein: the front handrail assembly comprises a front handrail seat which is connected to the lower push rods on two sides in a sliding manner, a front handrail which is connected to the front handrail seat in a rotating manner, and a handrail locking mechanism which locks the front handrail seat and the front handrail, when the frame is in an unfolded state, the handrail locking mechanism is locked, and the front handrail seat and the front handrail are relatively fixed; when the frame is converted from an unfolded state to a folded state, and the front armrest seat slides on the lower push rod, the armrest locking mechanism is unlocked, and the front armrest can rotate downwards to be close to the lower push rod.

4. A cart according to claim 3, wherein: the upper push rod rotates forwards and downwards to drive the front handrail to rotate downwards, and when the frame is in a folded state, the front handrail is folded between the upper push rods on two sides.

5. A cart according to claim 3, wherein: the handrail locking mechanism comprises a locking block arranged between the front handrail seat and the front handrail, a locking groove arranged in the front handrail, an elastic piece connected between the locking groove and the locking block, an inserting block driving the locking block to be inserted into the locking groove and a fixed seat fixedly arranged on the lower push rod, wherein one end of the inserting block is provided with an inserting inclined plane, the locking block is internally provided with a matching inclined plane, the inserting block is inserted into the locking block, the inserting inclined plane of the inserting block is matched with the matching inclined plane of the locking block in a sliding way, and the other end of the inserting block can be abutted against the fixed seat,

6. A cart according to claim 1, wherein: when the frame is in an unfolded state, the rotating connection point of the lower push rod and the underframe is positioned in front of the rotating connection point of the lower push rod and the underframe.

7. A cart according to claim 1, wherein: the chassis including being located respectively the shallow left and right sides preceding frame, back frame and frame connecting rod, the lower extreme of preceding frame, back frame be connected with the wheel, the upper end of preceding frame, back frame rotate to be connected, the frame connecting rod connect preceding frame, back frame between, the lower extreme of push down rod with the upper end of preceding frame and/or back frame rotate to be connected, the lower extreme of lower pull rod with the middle part of back frame rotate to be connected, work as the frame from the expansion state to fold condition when changing, preceding frame, back frame draw close each other.

8. A cart according to claim 7, wherein: the frame connecting rod comprises a front frame connecting rod and a rear frame connecting rod, the front end of the front frame connecting rod is rotatably connected with the front frame, the rear end of the front frame connecting rod is rotatably connected with the front end of the rear frame connecting rod, and the rear end of the rear frame connecting rod is rotatably connected with the rear frame.

9. A cart according to claim 8, wherein: the lower end part of the lower pull rod is connected with the rear frame connecting rod in a rotatable and sliding manner.

10. A cart according to claim 1, wherein: the cart also comprises a seat plate assembly, the seat plate assembly comprises a seat plate body, a seat plate front connecting rod and a seat plate rear connecting rod, one end of the seat plate front connecting rod is rotatably connected with the seat plate body, and the other end of the seat plate front connecting rod is rotatably connected with the underframe; one end of the seat plate rear connecting rod is rotatably connected with the seat plate body, and the other end of the seat plate rear connecting rod is rotatably connected with the lower pull rod.