CN209454824U - A baby carriage that is convenient for linkage and folding - Google Patents

Abstract

The utility model discloses a baby carriage convenient for linkage folding, which comprises a handle component, a main joint component, a front foot tube, a rear foot tube, a front wheel component, a rear wheel component and a seat frame tube, wherein the handle component, the front foot tube and the rear foot tube are respectively connected with the main joint component; a vehicle folding button is arranged in the handle component and is connected with the main joint component through a vehicle folding rope to form a vehicle folding control structure; the main joint component comprises a handle lower joint, a rear foot joint and a front foot joint which are coaxially combined together, the handle lower joint is connected with the handle component, the rear foot joint is connected with a rear foot pipe, and the front foot joint is connected with a front foot pipe. The utility model discloses a with preceding foot subassembly, back foot subassembly and hand (hold) subassembly all with main joint connection become rotatable structure, and main joint internal design becomes special rotation and locking structure, presses the button of receiving the car and can singlehanded fold preceding foot, back foot, hand (hold) and seat frame and receive, accomodates the convenience, the operation can be accomplished to the singlehanded, and it is more convenient to carry after receiving, takes up an area of littleer.

Description

A baby carriage that is convenient for linkage and folding

technical field

The utility model relates to the technical field of baby products, in particular to a baby trolley which can be conveniently folded and unfolded in conjunction.

Background technique

With the improvement of living standards, strollers have become an essential tool for babies. Putting infants and young children on the carts and being pushed by adults can not only greatly facilitate the care of adults, but also make babies more comfortable. It is also safer. Current baby carriages generally include a vehicle frame, seat frame, front wheel assembly, rear wheel assembly, handles, etc. , the rear wheel and the handle are installed on the front leg tube, the rear leg tube and the handle tube respectively. For ease of use, the user can fold and store the stroller when the stroller is not in use. However, the baby trolleys currently on the market are usually relatively complicated, most of them cannot be folded, and it is not convenient to store and carry them. In order to solve the above problems, someone has designed a foldable stroller. However, most of the previous strollers need to manually pull (or push) the handle tube, front leg tube, rear leg tube, seat tube and other components to realize folding. This manual operation mode is more time-consuming and laborious, the operation is cumbersome, and it is difficult to complete the operation with one hand, which will cause inconvenience to some users with weak hands-on ability, especially unfavorable for the elderly and women.

Utility model content

The technical problem to be solved by the utility model is to provide a stroller with a more reasonable structural design, more convenient and labor-saving unfolding and folding operations, and easy linkage and folding through the cooperation of the main joint components and the cooperation of the linkage structure.

In order to solve the above technical problems, the utility model adopts the following technical solution: a baby carriage that is convenient for linkage and folding, including a handle assembly, a main joint assembly, a front leg tube, a rear leg tube, a front wheel assembly, a rear wheel assembly and a seat frame tube , the handle assembly, the front leg tube and the rear leg tube are connected to the main joint assembly from various directions to form a rotatable structure; the handle assembly is provided with a button for closing the car, and the button for closing the car is connected to the main joint assembly through the car rope to form a car closing The control structure is characterized in that: the main joint assembly includes the lower joint of the handlebar, the rear foot joint and the front foot joint, the three are coaxially combined, the lower joint of the handlebar is connected with the handlebar assembly, the rear foot joint is connected with the rear foot tube, The front foot joint is connected with the front leg tube; a slidable car receiving piece is arranged on the lower joint of the handlebar, and the car receiving piece is connected with the car rope, and the car receiving piece is pulled by the car rope to slide towards the handlebar assembly to realize the main joint assembly Unlocking; a locking pin is fixed on the car receiving piece, one end of the locking pin is inserted into the rear foot joint, and the other end is inserted into the front foot joint; an arc-shaped chute is arranged in the rear foot joint and the front foot joint, and the end of the arc-shaped chute has a straight groove , when the rear foot joint, front foot joint and the lower joint of the handlebar are in the unlocked state, the locking pin is located in the arc-shaped chute so that the rear foot joint and the front foot joint form a structure that can rotate relative to the lower handlebar joint; the rear foot joint, the front foot joint and the handlebar When the lower joint is in the locked state, the locking pin slides into the straight groove and is limited so that the rear foot joint, the front foot joint and the lower joint of the handle form a locking structure.

Further, the locking pin includes a first locking pin and a second locking pin, and the two locking pins are fixed in the locking pin hole of the car receiving sheet with their positions staggered, the first locking pin is close to the edge of the main joint, and the second locking pin Near the middle of the main joint; the arc chute in the rear foot joint and the front foot joint also includes a first arc chute and a second arc chute respectively, and the end of the first arc chute has a first straight groove , the end of the second arc-shaped chute has a second straight groove, the first arc-shaped chute and the first straight groove are located at the periphery of the second arc-shaped chute and the second straight groove; the two ends of the first locking pin are respectively connected to The first arc-shaped groove and the first straight groove of the rear foot joint and the front foot joint are butted, and the two ends of the second locking pin are respectively butted with the second arc-shaped groove and the second straight groove of the rear foot joint and the front foot joint.

Further, the car receiving piece is arranged on the opposite side of the lower joint of the handlebar and the front foot joint, one end of the locking pin passes through the lower joint of the handlebar and is inserted into the rear foot joint, and the other end is directly inserted into the front foot joint.

Further, a joint shaft is provided at the center of the lower joint of the handle, and two elongated locking pins respectively corresponding to the first locking pin and the second locking pin are provided between the joint shaft and the edge of the lower joint of the handle. The two locking pins respectively pass through the two locking pin slots and dock with the rear foot joints; a long strip-shaped joint shaft groove is arranged in the car receiving piece, and the car receiving piece is sleeved on the joint shaft through its joint shaft groove to form a front and rear sliding joint. structure.

When the button is pressed, the retracting rope pulls the retracting piece to move backward, and the retracting piece simultaneously drives the first lock pin to move backward, breaks away from the first straight groove and enters the first arc-shaped chute, and the second lock pin goes to After moving away from the second straight groove and entering the second lock arc chute, the first lock pin can slide freely in the first arc chute, and the second lock pin can slide freely in the second arc chute. At this time, the rear foot joint, the front foot joint and the lower joint of the handlebar are unlocked, and the three can be relatively rotated respectively, so as to complete the operations of receiving and displaying the car. When showing the car, when the first lock pin slides in the first arc-shaped chute and the second lock pin slides in the second arc-shaped chute to enter the first straight groove and the second straight groove respectively, the second Both the first lock pin and the second lock pin can no longer slide, so that the rear foot joint and the front foot joint can no longer rotate, so that the locking of the main joint assembly is realized, and the car body is completely unfolded.

Further, limit pins are provided on both sides of the lower joint of the handle, and arc-shaped structure limit grooves corresponding to the limit pins are arranged in the rear foot joint and the front foot joint, and the limit pins are inserted into the limit grooves. Form the limit structure of the rear foot joint and the front foot joint during the rotation process, so that the joints will not be over-rotated and cause damage to the joints, and secondly, the rotation process of the joints can be made more stable.

Further, a rotatable link piece is connected to the eccentric position of the lower joint of the handle, and the link piece is a curved structure; the lower end of the link piece is connected with the front part of a link seat to form a rotatable structure, and the link seat The rear part of the rear leg is connected to the middle position of the rear leg tube to form a rotatable structure; the front end of the linkage seat is connected to a rear linkage arm, the front end of the rear linkage arm is connected to a linkage joint, and the connection joint is connected to the front linkage arm. The front end of the linkage arm is movably connected with the front leg tube to form a pulling/push structure for the front leg tube; the linkage plate, linkage seat, front linkage arm, linkage joint and rear linkage arm together form a linkage structure, and the front linkage The arm and the rear link arm are connected through a link joint to form a rotatable and foldable structure. After the main joint assembly is unlocked, when the handle assembly is pushed or pulled, the linkage piece will rotate with the rotation of the lower joint of the handlebar. When it rotates, the linkage seat drives the rear leg tube and the rear linkage arm to rotate synchronously, and the rear linkage arm The front linkage arm is driven by the linkage joint, and the front linkage arm drives the front leg tube and the seat frame tube to rotate, thus realizing folding and closing or rotating and unfolding.

Further, the handle assembly includes a handle lower tube and a handle upper tube, the two are connected to a rotatable folding structure through the handle upper joint, so that the height of the handle can be adjusted; In the upper tube, the car rope is passed through the upper tube of the handle and the lower tube of the handle, and penetrates into the lower joint of the handle to connect with the car receiving piece; the upper pipe for fixing the awning is also connected through the upper joint of the handle.

Furthermore, a retractable axle is provided on the outer surface of the upper tube of the handlebar, and a locking piece with a hole is provided at the middle of the rear leg tube. The unique folding and locking structure keeps the folded car body fixed without falling apart.

Further, the seat frame tube is installed on the front leg tube through the seat joint to form a rotatable structure.

Further, it also includes a handrail tube, which is connected to the main joint assembly through the forefoot joint to form a rotatable structure.

The utility model forms a rotatable structure by connecting the front foot assembly, the rear foot assembly and the handle assembly with the main joint, and the inside of the main joint is designed as a special rotation and locking structure. Just press the button to fold the front foot assembly, rear foot assembly, handle assembly and seat frame assembly with one hand, which is more convenient to store and fold, saves time and effort, and can be completed with one hand, which is very beneficial for the elderly and women to use ; and it is beneficial for the overall volume of the stroller to become smaller after being folded and stored, making it more convenient to carry and occupying a smaller area when storing.

Description of drawings

Fig. 1 is the structural representation of the expanded state of the utility model;

Fig. 2 is the structural representation of the folding process of the utility model;

Fig. 3 is a schematic structural diagram of the utility model fully folded;

Fig. 4 is an exploded schematic diagram of the first angle of the main joint assembly of the present invention;

Fig. 5 is an exploded schematic diagram of the second angle of the main joint assembly of the present invention;

Fig. 6 is an exploded schematic view of the third angle of the main joint assembly of the present invention;

Fig. 7 is a structural diagram of cooperation between the lower joint of the handlebar and the linkage plate of the utility model;

Fig. 8 is a structural diagram of the rear foot joint of the present invention.

In the figure, 11 is the lower tube of the handlebar, 12 is the upper tube of the handlebar, 13 is the upper joint of the handlebar, 14 is the retracting button, 15 is the retracting axle, 16 is the upper surrounding tube, 2 is the lower joint of the handlebar, 21 is the Joint shaft, 22 is the locking pin groove, 23 is the first locking pin, 24 is the second locking pin, 25 is the car receiving piece, 26 is the joint shaft groove, 27 is the locking pin hole, 28 is the limit pin, 3 is the rear foot Joint, 31 is the first arc-shaped chute, 32 is the second arc-shaped chute, 33 is the first straight groove, 34 is the second straight groove, 35 is the limit groove, 4 is the front foot joint, 41 is the first arc 42 is the second arc-shaped chute, 43 is the first straight groove, 44 is the second straight groove, 45 is the limit groove, 5 is the rear leg tube, 51 is the rear wheel assembly, 52 is the locking piece, 6 61 is the front wheel assembly, 7 is the seat tube, 71 is the seat frame joint, 81 is the linkage piece, 82 is the linkage seat, 83 is the rear linkage arm, 84 is the linkage joint, 85 is the front linkage Boom, 9 is handrail pipe.

Detailed ways

In this embodiment, referring to Fig. 1-Fig. 8, the stroller for easy linkage and folding includes a handle assembly, a main joint assembly, a front leg tube 6, a rear leg tube 5, a front wheel assembly 61, a rear wheel assembly 51 and a seat The frame pipe 7, the handle assembly, the front leg pipe 6 and the rear leg pipe 5 are connected to the main joint assembly from all directions to form a rotatable structure; the handle assembly is provided with a car receiving button 14, which is passed through the car rope ( not shown) is connected with the main joint assembly to form a car closing control structure; the main joint assembly includes the lower joint 2 of the handlebar, the rear foot joint 3 and the front foot joint 4, the three are coaxially combined, the lower joint 2 of the handlebar and the The lower handle pipe 11 of the handle assembly is connected, the rear foot joint 3 is connected with the rear foot pipe 5, and the front foot joint 4 is connected with the front foot pipe 6; Connect with the car rope, pull the car receiving piece 25 to slide towards the handle assembly through the car receiving rope to realize the unlocking of the main joint assembly; a locking pin is fixed on the car receiving piece 25, one end of the locking pin is inserted into the rear foot joint 3, and the other end is Insert it into the front foot joint 4; both the rear foot joint 3 and the front foot joint 4 are provided with an arc-shaped chute, and the end of the arc-shaped chute has a straight groove. When the rear foot joint 3 and the front foot joint 4 are in the unlocked state , the locking pin is located in the arc-shaped chute so that the rear foot joint 3 and the front foot joint 4 form a structure that can rotate relative to the lower handlebar joint 2; when the rear foot joint 3, the front foot joint 4 and the lower handlebar joint 2 are in a locked state, Slide into the straight groove and be limited so that the rear foot joint 3 and the front foot joint 4 form a locking structure with the lower joint 2 of the handlebar, and this time it can no longer rotate.

The locking pin includes a first locking pin 23 and a second locking pin 24, and the two locking pins are fixed in the locking pin hole 27 of the car receiving piece 25 in a staggered position. The first locking pin 23 is close to the edge position of the main joint, and the second locking pin is Lock pin 24 is close to the middle position of main joint; The end of the arc chute 31,41 has a first straight groove 33,43, the end of the second arc chute 32,42 has a second straight groove 34,44, the first arc chute 31,41 and the first The straight grooves 33, 43 are positioned at the periphery of the second arc chute 32, 42 and the second straight groove 34, 44; , 41 and the first straight groove 33,43 docking, the two ends of the second locking pin 24 are respectively docking with the second arc groove 32,42 and the second straight groove 34,44 of the rear foot joint 3 and the front foot joint 4.

The car receiving piece 25 is arranged on the opposite side of the lower joint 2 of the handlebar and the front foot joint 4 , one end of the locking pin passes through the lower joint 2 of the handlebar and is inserted into the rear foot joint 3 , and the other end is directly inserted into the front foot joint 4 .

A joint shaft 21 is arranged at the center of the lower joint 2 of the handle, and two strips corresponding to the first locking pin 23 and the second locking pin 24 are provided between the joint shaft 21 and the edge of the lower joint 2 of the handle. Shape locking pin groove 22, makes locking pin slide in the groove, and two locking pins respectively pass through two locking pin grooves 22 and rear foot joint 3 docking; The car plate 25 is sleeved on the joint shaft 21 through its joint shaft groove 26 to form a structure that can slide back and forth.

When the car receiving button 14 is pressed, the car receiving rope pulls the car receiving piece 25 to move backward, and the car receiving piece 25 simultaneously drives the first lock pin 23 to move backward, break away from the first straight grooves 33, 43 and enter the first arc-shaped chute 31, 41. The second lock pin 24 moves backwards from the second straight groove 34, 44 and enters the second lock arc chute 32, 42. The first lock pin 23 can be in the first arc chute 31, 41, the second locking pin 24 can slide freely in the second arc-shaped slide grooves 32,42. Now the rear foot joint 34, the front foot joint and the lower joint 2 of the handlebar are unlocked, and the three can be relatively rotated respectively, so as to complete the operation of closing the car and showing the car. When showing the car, when the first lock pin 23 is in the first arc-shaped chute 31, 41, the second lock pin 24 slides in the second arc-shaped chute 32, 42 to enter the first straight groove 33 respectively , 43 and the second straight groove 34, 44, the first lock pin 23 and the second lock pin 24 can no longer slide, so that the rear foot joint 3 and the front foot joint 4 can no longer rotate, so that the main joint assembly is realized lock, and the car body is fully unfolded.

Both sides of the lower joint 2 of the handle are respectively provided with a limit pin 28, and the rear foot joint 3 and the front foot joint 4 are all provided with arc-shaped structure limit grooves 35, 45 corresponding to the limit pin 28, and the limit pin 28 The two ends are respectively inserted into the limiting grooves 35 and 45 to form a limiting structure for the rear foot joint 3 and the front foot joint 4 during rotation, so that the joints will not be damaged due to excessive rotation, and secondly, the joints The rotation process is more stable.

The eccentric position of the lower joint 2 of the handle is connected with a rotatable link piece 81, which is a curved structure; the lower end of the link piece 81 is connected with the front part of a link seat 82 to form a rotatable structure. The rear portion of the movable seat 82 is connected to the middle section of the rear foot pipe 5 to form a rotatable structure; the front end of the movable seat 82 is connected to a rear linkage arm 83, and the front end of the rear linkage arm 83 is connected with a linkage joint 84, which connects the joint 84 is connected with front link arm 85, and the front end of front link arm 85 is movably connected with front leg tube 6 to form the pulling/push structure to front leg tube 6; Link plate 81, link seat 82, front link arm 85, link The moving joint 84 and the rear linking arm 83 jointly form a linking structure, and the front linking arm 85 and the rear linking arm 83 are connected by the linking joint 84 to form a rotatable folding structure. After the main joint assembly is unlocked, when the handle assembly is pushed or pulled, the linkage piece 81 will rotate with the rotation of the lower joint 2 of the handlebar. When it rotates, the linkage seat 82 will drive the rear leg tube 5 and the rear linkage arm 83 to rotate synchronously. , the rear link arm 83 drives the front link arm 85 through the link joint 84, and the front link arm 85 drives the front leg tube 6 and the seat frame tube 7 to rotate, so that the folding car or the rotation is unfolded.

The handle assembly includes a handle lower tube 11 and a handle upper tube 12, both of which are connected to a rotatable foldable structure through a handle upper joint 13, so that the height of the handle can be adjusted; the car receiving button 14 is arranged on In the upper handlebar tube 12, the car rope is passed through the upper handlebar tube 12 and the lower handlebar tube 11, and penetrates into the lower joint 2 of the handlebar to connect with the car receiving piece 25; The upper surrounding pipe 16 of tent.

On the outer surface of the upper handle tube 12, there is a retractable axle 15, and the middle position of the rear leg tube 5 is provided with a locking piece 52 with a hole. The folding and locking structure of the whole vehicle keeps the folded vehicle body fixed without falling apart.

The seat frame pipe 7 is installed on the front leg pipe 6 through the seat joint 71 to form a rotatable structure.

Also includes a handrail tube 9, the handrail tube 9 is connected to the main joint assembly through the front foot joint 4 to form a rotatable structure.

The utility model has been described in detail above. The above description is only a preferred embodiment of the utility model. When it cannot limit the scope of the utility model, all equivalent changes and modifications made according to the scope of the application should be Still belong to the scope covered by the present utility model.

Claims (10)

1. A baby carriage that is easy to be linked and folded, including a handle assembly, a main joint assembly, a front leg tube, a rear leg tube, a front wheel assembly, a rear wheel assembly, and a seat tube. The handle assembly, the front leg tube, and the rear leg tube are respectively Each direction is connected with the main joint assembly to form a rotatable structure; a car closing button is arranged in the handle assembly, and the car closing button is connected with the main joint assembly through a car closing rope to form a car closing control structure, which is characterized in that: the main joint assembly Including the lower joint of the handlebar, the rear foot joint and the front foot joint, the three are coaxially combined, the lower joint of the handlebar is connected with the handlebar assembly, the rear foot joint is connected with the rear leg tube, and the front foot joint is connected with the front leg tube; the lower joint of the handlebar is connected with the handlebar assembly There is a slidable car receiving piece on the top, the car receiving piece is connected with the car rope, and the car receiving piece is pulled by the car receiving rope to slide towards the handle assembly to realize the unlocking of the main joint assembly; the car receiving piece is fixed with a locking pin, and the locking pin One end is inserted into the rear foot joint, and the other end is inserted into the front foot joint; both the rear foot joint and the front foot joint are provided with an arc-shaped chute, and the end of the arc-shaped chute has a straight groove. In the unlocked state, the locking pin is located in the arc-shaped chute so that the rear foot joint and the front foot joint form a structure that can rotate relative to the lower handlebar joint; when the rear foot joint, the front foot joint and the lower handlebar joint are in the locked state, the locking pin slides into the The position is limited in the groove so that the rear foot joint, the front foot joint and the lower joint of the handlebar form a locking structure. 2. The baby carriage that is convenient for linkage and folding according to claim 1, wherein the locking pin includes a first locking pin and a second locking pin, and the two locking pins are fixed in the locking pin hole of the car receiving piece at staggered positions Among them, the first locking pin is close to the edge position of the main joint, and the second locking pin is close to the middle position of the main joint; and the arc-shaped chute in the rear foot joint and the front foot joint also includes the first arc-shaped chute and the second arc-shaped chute respectively. The end of the first arc-shaped chute has a first straight groove, the end of the second arc-shaped chute has a second straight groove, the first arc-shaped chute and the first straight groove are located in the second arc-shaped chute and the periphery of the second straight groove; the two ends of the first locking pin are respectively docked with the first arc groove and the first straight groove of the rear foot joint and the front foot joint, and the two ends of the second locking pin are respectively connected with the rear foot joint and the front foot joint. The second arc-shaped groove and the second straight groove are butted. 3. The baby carriage that is convenient for linkage and folding according to claim 1, characterized in that: the retractable piece is arranged on the side opposite to the lower joint of the handle and the joint of the front foot, and one end of the locking pin passes through the lower joint of the handle and is inserted into the joint of the rear foot , and the other end is inserted directly into the forefoot joint. 4. The baby carriage that is convenient for linkage and folding according to claim 2, characterized in that: a joint shaft is set at the center of the handlebar joint, and two separate joints are provided between the joint shaft and the edge of the handlebar joint. The elongated locking pin grooves corresponding to the first locking pin and the second locking pin, the two locking pins respectively pass through the two locking pin grooves to connect with the rear foot joints; The car sheet forms a structure that can slide back and forth on the joint shaft through its joint shaft groove sleeve. 5. The stroller that is convenient for linkage and folding according to claim 1 is characterized in that: limit pins are provided on both sides of the lower joint of the handlebar, and corresponding limit pins are provided in the rear foot joint and the front foot joint. The arc-shaped structure limit groove, the limit pin is inserted into the limit groove, forming the limit structure of the rear foot joint and the front foot joint during the rotation process. 6. The baby carriage that is easy to be linked and folded according to claim 1, characterized in that: a rotatable linking piece is connected to the eccentric position of the lower joint of the handlebar, and the linking piece is a curved structure; the lower end of the linking piece is connected to the The front part of a link seat is connected to form a rotatable structure, and the rear part of the link seat is connected to the middle section of the rear leg pipe to form a rotatable structure; the front end of the link seat is connected and fixed to a rear link arm, and the rear link arm The front end is connected with a linkage joint, and the connection joint is connected with a front linkage arm, and the front end of the front linkage arm is movably connected with the front leg tube to form a pulling/push structure for the front leg tube; linkage piece, linkage seat, front linkage arm, The linkage joint and the rear linkage arm jointly form a linkage structure, and the front linkage arm and the rear linkage arm are connected through the linkage joint to form a rotatable and folding structure. 7. The baby carriage that is convenient for linkage and folding according to claim 1, wherein the handle assembly includes a handle lower tube and a handle upper tube, and the two are connected by a handle upper joint to form a rotatable folding structure The button for closing the car is set in the upper tube of the handlebar, the rope for closing the car passes through the upper tube of the handlebar and the lower tube of the handlebar, and penetrates into the lower joint of the handlebar to connect with the car receiving piece; the upper joint of the handlebar is also connected with a sunshade Canopy top tube. 8. The stroller that is convenient for linkage and folding according to claim 7 is characterized in that: the outer surface of the upper tube of the handle is provided with a retractable axle, and the middle part of the rear leg tube is provided with a locking piece with a hole. After it is fully folded, hang the locking piece on the retractable axle to form a retractable locking structure for the entire vehicle. 9. The stroller that is easy to be linked and folded according to claim 1, wherein the seat frame tube is mounted on the front leg tube through the seat joint to form a rotatable structure. 10. The stroller for easy linkage and folding according to claim 1, further comprising a handrail tube, which is connected to the main joint assembly through the front foot joint to form a rotatable structure.