CN109733458A

CN109733458A - pushchair

Info

Publication number: CN109733458A
Application number: CN201910075194.4A
Authority: CN
Inventors: 钭子奇
Original assignee: Zhejiang Qunying Vehicles Co Ltd
Current assignee: Zhejiang Qunying Vehicles Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2019-05-10

Abstract

A foldable stroller includes a frame, the frame includes a pair of left and right side brackets, front wheels and rear wheels mounted on the side brackets, and the side brackets include a front support rod and a rear support rod that is rotatably connected to the front support rod and a handrail that is rotatably connected to the front support rod and the rear support rod, wherein the front wheel is fixedly connected to the bottom end of the front support rod, and the rear wheel is fixedly connected to the bottom end of the rear support rod; The device includes a front adjustment unit and a rear adjustment unit, the front adjustment unit is rotatably connected and matched with the two front support rods and the two rear support rods, the front adjustment unit is placed inside the two front support rods and the two rear support rods, and the rear adjustment unit is connected with the two rear support rods. The rods are hingedly matched, the rear adjustment unit is placed on the outside of the two rear support rods, and a limit unit is arranged on the rear adjustment unit. The trolley of the invention not only has a simple structure, is flexible and convenient to operate, but also has high safety performance, and is worthy of popularization.

Description

Pushchair

Technical field

The present invention relates to perambulator, especially a kind of Pushchair.

Background technique

Children trolley is a kind of main tool for the seating of baby open air, it has, and structure design is simple, light-weight, folds The advantages that easy to carry and the deep welcome by numerous babies parent, existing children trolley structure design are complex, operation compared with For inconvenience, use reliability is not good enough, is unfolded or inflexible, the strong influence use of baby parent that folds operation, and has The safety in utilization of a little children trolleys is poor, and the linkage structure in adjustment structure is connected jointly by a connection type, Such as the end of interlocking bar and the end of adjusting rod are bolted using one on vehicle frame, thus after the bolt is deviate from It will lead to interlocking bar and adjusting rod one end while disconnecting, then done by children and will lead to vehicle frame in interior brought pressure Automatically it inside contracts, safety is poor.

Summary of the invention

The shortcomings that the invention solves the above-mentioned prior arts provides a kind of foldable baby trolley easy to use, structure Succinctly, capable of expansion and contraction and easy to operate, and the usage safety performance of cart is further increased, it is convenient and efficient.

The technical scheme adopted by the invention to solve the technical problem: this Pushchair, including vehicle frame, vehicle frame include The side stand of a pair of left and right distribution, front vehicle wheel, the rear wheel being installed on side stand, side stand includes front support rod and front support rod Rotation connection cooperation and the back stay of trammer handle is installed and is rotationally connected with front support rod, the handrail on back stay, Middle front vehicle wheel is fixedly connected on front support rod bottom end, and rear wheel is fixedly connected on back stay bottom end；Tune is installed between two side stands Regulating device, regulating device include preceding adjusting unit and rear adjusting unit, and preceding adjusting unit and two front support rods and two back stays turn Dynamic connection cooperation, preceding adjusting unit are placed on the inside of two front support rods and two back stays, and the rear unit that adjusts hingedly is matched with two back stays It closes, the rear unit that adjusts is placed on the outside of two back stays, and the rear unit that adjusts is equipped with position-limiting unit.In this way, the scaling of vehicle frame passes through tune Regulating device, which is realized, to be adjusted, and regulating device is made of preceding adjustings unit and the rear unit that adjusts, thus make scaling conveniently and Using effect is good, and position-limiting unit makes it when cart sizing is in use state, the rear unit that adjusts is for adjusting unit after limiting Will not be seated at children it is interior brought by lower pressure cause after adjust unit and make angular adjustment movement, that is, adjust unit before keeping It is constant, because preceding adjusting unit and the rear unit that adjusts thus promote the safety in utilization of cart in linkage setting.

Preceding adjusting unit includes a pair of 4th adjusting rod, is arranged in a crossed manner between two the 4th adjusting rods, wherein the 4th is adjusted Bar both ends end is rotatablely connected with front support rod, back stay respectively.In this way, two side stands arranged in a crossed manner that can be achieved are adjusted according to adjusting two Angle between pole realizes inside and outside scaling, and angle is gradually reduced, and two side stands inside contract, and angle is gradually increased, outside two side stands Stretching, extension, convenient and efficient, using effect is good.

It includes the upper adjustment portion being distributed up and down, lower adjustment portion and hinged with upper adjustment portion, lower adjustment portion for adjusting unit afterwards The middle linkage portion of cooperation, upper adjustment portion include superposition and the first adjusting rod hingedly cooperated before and after a pair of of inner end end, and first adjusts Pole is rotationally connected on back stay, and lower adjustment portion includes superposition and the second adjusting hingedly cooperated before and after a pair of of inner end end Bar, the second adjusting rod are rotationally connected on back stay, and middle linkage portion includes a pair of hinged cooperation and interlocking bar arranged in a crossed manner, connection Lever is articulated and connected on the first adjusting rod, the second adjusting rod.In this way, upper adjustment portion and lower adjustment portion are realized by middle linkage portion It is adjusted in synchronism, and two interlocking bar of linkage portion are articulated and connected in the both ends of the first adjusting rod, the second adjusting rod in composition Between portion, rather than end, it is not mounted directly connection connection between the two thus, it is de- at connection structure (such as bolt) After out, situation ineffective simultaneously both will not occur, thus an even side disconnects relationship (such as first Adjusting rod one end and back stay disconnect relationship, second adjusting rod one end and back stay and disconnect relationship, interlocking bar one end Relationship is disconnected with the first adjusting rod or the second adjusting rod) it will not influence the scaling of vehicle frame, while will not be by children Do causes vehicle frame to inside contract in lower pressure brought in cart, improves safety.

Position-limiting unit includes the regulation handle being rotationally connected on the second adjusting rod for being placed in front end, regulation handle be placed in The spacer pin inserted in the two is equipped between second adjusting rod of front end.In this way, regulation handle carrys out controling adjustment device, without straight Hand is connected, avoids bringing feeling of pain to hand, spacer pin is for limiting regulation handle rotation, so that position-limiting unit rotation is limited, Aspect is quick, and using effect is good.

It is further perfect, attachment base is equipped at the rotation connection between front support rod and back stay, before wherein attachment base inserts in In strut, back stay is rotationally connected in attachment base.In this way, convenient for front support rod, the connection installation of back stay, while being also convenient for reality Existing back stay rotation, it is convenient and efficient.

It is further perfect, L-type external ear is equipped at the rotation connection between the 4th adjusting rod and front support rod, back stay, wherein 4th adjusting rod is rotationally connected on L-type external ear.In this way, being convenient for the connection of the 4th adjusting rod by L-type external ear, and realize its turn It is dynamic, it is convenient and efficient.

It is further perfect, be equipped with the first inserting column for being installed on front support rod between L-type external ear and front support rod, L-type external ear with First inserting column is fixedly connected.In this way, being convenient for the installation of L-type external ear.

It is further perfect, be equipped with the second inserting column for being installed on back stay between L-type external ear and back stay, L-type external ear with Second inserting column is fixedly connected.In this way, being convenient for the installation of L-type external ear.

It is further perfect, it is placed at the second adjusting rod and the second adjusting rod rotation connection for being placed in front end of rear end and is equipped with peace Limited block loaded on the second adjusting rod upper end.In this way, being adjusted after when can quickly confirm that cart is in use state by limited block The stretching, extension for saving unit uses position, so that differential seat angle is not present between bar and bar in same level, it is convenient and efficient.

It is further perfect, it is placed in the second adjusting rod of rear end and is provided with sliding slot for spacer pin insert division.In this way, sliding slot is set It sets convenient for guidance spacer pin quick insertion, it is convenient and efficient.

The invention has the advantages that: cart of the invention is not only concise in structure, capable of expansion and contraction and easy to operate, and is made High with security performance, the first adjusting rod, the second adjusting rod and interlocking bar on the rear adjusting unit of this cart are to possess solely Vertical connection constraints point, even if thus single part disconnects, i.e., vehicle frame is still able to maintain the pattern being fully deployed, will not Its use is influenced, guarantees safety, is worthy to be popularized.

Detailed description of the invention

Fig. 1 is the schematic perspective view in the positive use of the present invention；

Fig. 2 is the schematic perspective view in back side use of the present invention；

Fig. 3 is the partial enlargement diagram of part A in Fig. 2 of the present invention；

Fig. 4 is the schematic perspective view that the back side of the present invention half is contracted；

Fig. 5 is the full reduced schematic perspective view in the back side of the present invention.

Description of symbols: vehicle frame 1, side stand 2, front vehicle wheel 3, rear wheel 4, front support rod 5, back stay 6, handrail 7 are adjusted Regulating device 8, preceding adjusting unit 9 are rear to adjust unit 10, position-limiting unit 11, the 4th adjusting rod 12, upper adjustment portion 13, lower adjustment portion 14, middle linkage portion 15, the first adjusting rod 16, the second adjusting rod 17, interlocking bar 18, regulation handle 19, spacer pin 20, attachment base 21, L-type external ear 22, the first inserting column 23, the second inserting column 24, limited block 25, sliding slot 26, trammer handle 27.

Specific embodiment

The present invention will be further explained below with reference to the attached drawings:

Referring to attached drawing: this Pushchair, including vehicle frame 1, vehicle frame 1 include the side stand 2 of a pair of of left and right distribution, are installed on Front vehicle wheel 3, rear wheel 4 on side stand 2, side stand 2 are rotatablely connected cooperation including front support rod 5, with front support rod 5 and are equipped with and push away The back stay 6 of cart handle 27 and it is rotationally connected with front support rod 5, the handrail 7 on back stay 6, wherein front vehicle wheel 3 is fixedly connected In 5 bottom end of front support rod, rear wheel 4 is fixedly connected on 6 bottom end of back stay；Regulating device 8 is installed between two side stands 2, is adjusted Device 8 includes preceding adjusting unit 9 and rear adjusting unit 10, and preceding adjusting unit 9 connects with two front support rods 5 and the rotation of two back stays 6 Cooperation is connect, preceding adjusting unit 9 is placed in 6 inside of two front support rods 5 and two back stays, rear to adjust unit 10 and two back stays 6 hingedly Cooperation, the rear unit 10 that adjusts are placed in two back stays, 6 outside, and the rear unit 10 that adjusts is equipped with position-limiting unit 11；

Preceding adjusting unit 9 includes a pair of 4th adjusting rod 12, is arranged in a crossed manner between two the 4th adjusting rods 12, wherein the 4th is adjusted 12 both ends end of bar is rotatablely connected with front support rod 5, back stay 6 respectively；

Afterwards adjust unit 10 include be distributed up and down upper adjustment portion 13, lower adjustment portion 14 and with upper adjustment portion 13, lower adjustment portion The 14 middle linkage portions 15 hingedly cooperated, upper adjustment portion 13 include superposition and the first adjusting hingedly cooperated before and after the end of a pair of of inner end Bar 16, the first adjusting rod 16 are rotationally connected on back stay 6, and lower adjustment portion 14 includes superposition and hinged before and after a pair of of inner end end Second adjusting rod 17 of cooperation, the second adjusting rod 17 are rotationally connected on back stay 6, and middle linkage portion 15 includes a pair of hinged cooperation And interlocking bar 18 arranged in a crossed manner, interlocking bar 18 are articulated and connected on the first adjusting rod 16, the second adjusting rod 17；

Position-limiting unit 11 includes the regulation handle 19 that is rotationally connected on the second adjusting rod 17 for being placed in front end, regulation handle 19 with It is placed in the spacer pin 20 for being equipped with and being inserted in the two between the second adjusting rod 17 of front end.

Attachment base 21 is equipped at rotation connection between front support rod 5 and back stay 6, wherein attachment base 21 inserts in front support rod 5 Interior, back stay 6 is rotationally connected in attachment base 21.

L-type external ear 22 is equipped at rotation connection between 4th adjusting rod 12 and front support rod 5, back stay 6, wherein the 4th adjusts Pole 12 is rotationally connected on L-type external ear 22.

The first inserting column 23 being installed on front support rod 5, L-type external ear 22 and first are equipped between L-type external ear 22 and front support rod 5 Inserting column 23 is fixedly connected.

The second inserting column 24 being installed on back stay 6, L-type external ear 22 and second are equipped between L-type external ear 22 and back stay 6 Inserting column 24 is fixedly connected.

The second adjusting rod 17 for being placed in rear end and being equipped at 17 rotation connection of the second adjusting rod for being placed in front end is installed on the The limited block 25 of two adjusting rods, 17 upper end.

It is placed in the second adjusting rod 17 of rear end and is provided with sliding slot 26 for 20 insert division of spacer pin.

Although the present invention has been illustrated and described with reference to preferred embodiments, this profession ordinary skill Personnel are it is to be appreciated that within the scope of the claims, can make various variation in form and details.

Claims

1. A foldable stroller, comprising a frame (1), the frame (1) comprising a pair of side brackets (2) distributed left and right, front wheels (3) and rear wheels (4) mounted on the side brackets (2) ), characterized in that: the side bracket (2) includes a front support rod (5), a rear support rod (6) that is rotatably connected to the front support rod (5) and mounted with a cart handle (27), and a rear support rod (6) that is rotatably connected The handrail (7) on the front support rod (5) and the rear support rod (6), wherein the front wheel (3) is fixedly connected to the bottom end of the front support rod (5), and the rear wheel (4) is fixedly connected to the rear support The bottom end of the rod (6); an adjusting device (8) is installed between the two side brackets (2), and the adjusting device (8) includes a front adjusting unit (9) and a rear adjusting unit (10), the front adjusting unit (9) It is rotatably connected with the two front struts (5) and the two rear struts (6), and the front adjustment unit (9) is placed inside the two front struts (5) and the two rear struts (6). The rear adjustment unit (10) is hingedly matched with the two rear support rods (6), the rear adjustment unit (10) is placed on the outside of the two rear support rods (6), and the rear adjustment unit (10) is provided with a limit unit (11) ;

The front adjustment unit (9) includes a pair of fourth adjustment rods (12), and the two fourth adjustment rods (12) are arranged in a cross manner, wherein the two ends of the fourth adjustment rod (12) are respectively connected to the front support rod (5), the rear support rod (6) is rotated and connected;

The rear adjustment unit (10) comprises an upper adjustment part (13), a lower adjustment part (14) distributed up and down, and a middle linkage part (15) hingedly matched with the upper adjustment part (13) and the lower adjustment part (14), The upper adjustment part (13) includes a pair of first adjustment rods (16) whose inner ends are superimposed front and rear and are hingedly matched. The first adjustment rod (16) is rotatably connected to the rear support rod (6), and the lower The adjusting portion (14) includes a pair of second adjusting rods (17) whose inner ends are superimposed front and rear and are hingedly matched. The second adjusting rod (17) is rotatably connected to the rear support rod (6), and the middle linkage portion ( 15) comprising a pair of linkage rods (18) that are hingedly matched and arranged in a cross manner, the linkage rods (18) are hingedly connected to the first adjustment rod (16) and the second adjustment rod (17);

The limiting unit (11) includes an adjusting handle (19) rotatably connected to the second adjusting rod (17) placed at the front end, and the adjusting handle (19) is connected to the second adjusting rod (17) placed at the front end. There is a limit pin (20) inserted between the two.

2 . The folding stroller according to claim 1 , wherein a connecting seat ( 21 ) is provided at the rotational connection between the front support rod ( 5 ) and the rear support rod ( 6 ), wherein the connecting seat (21) is inserted into the front support rod (5), and the rear support rod (6) is rotatably connected to the connecting seat (21).

3. The foldable stroller according to claim 1, characterized in that: the rotational connection between the fourth adjusting rod (12), the front support rod (5), and the rear support rod (6) is provided with an L. A shaped outer ear (22), wherein the fourth adjustment rod (12) is rotatably connected to the L-shaped outer ear (22).

4. The foldable stroller according to claim 1, characterized in that a first plug mounted on the front support rod (5) is provided between the L-shaped outer ear (22) and the front support rod (5). The post (23), the L-shaped outer ear (22) is fixedly connected with the first post (23).

5. The foldable stroller according to claim 1, characterized in that: a second plug mounted on the rear support rod (6) is provided between the L-shaped outer ear (22) and the rear support rod (6). The post (24), the L-shaped outer ear (22) is fixedly connected with the second post (24).

6. The foldable stroller according to claim 1, characterized in that: a rotational connection between the second adjusting rod (17) placed at the rear end and the second adjusting rod (17) placed at the front end is provided with A limit stop (25) installed on the upper end of the second adjusting rod (17).

7. The foldable stroller according to claim 6, characterized in that a chute (26) is opened in the second adjusting rod (17) at the rear end for insertion of the limit pin (20).