CN111776051A

CN111776051A - Baby carriage

Info

Publication number: CN111776051A
Application number: CN202010609677.0A
Authority: CN
Inventors: 钭子奇
Original assignee: Zhejiang Qunying Vehicles Co Ltd
Current assignee: Zhejiang Qunying Vehicles Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-16

Abstract

The invention relates to the technical field of baby products, in particular to a baby carriage which comprises a folding frame capable of being folded and stored in a folding mode and a linkage type brake mechanism arranged at the bottom of the folding frame, wherein the linkage type brake mechanism comprises a connecting shaft and wheels movably connected to the end part of the connecting shaft, the wheels can rotate relative to the connecting shaft, the linkage type brake mechanism further comprises a handle, a traction assembly and a brake assembly, the bottom end of the handle is hinged to the bottom of the folding frame, one end of the traction assembly is connected to the bottom end of the handle, the other end of the traction assembly acts on the connecting shaft, the brake assembly is sleeved on the connecting shaft, and the handle is pulled and/or rotated to drive the brake assembly to lock or unlock the wheels; make the perambulator can conveniently accomodate folding and the security is high.

Description

Baby carriage

Technical Field

The invention relates to the technical field of baby products, in particular to a baby carriage.

Background

The baby carriage is a tool carriage which is designed for providing convenience for outdoor activities of babies, is also a favorite walking vehicle for babies, and is an essential product for mothers to go shopping on the street with the babies. However, the baby carriage can be divided into various types according to the growth and usage of the baby. Mainly according to the standard of the load capacity, and the general test standard is nine to fifteen kilograms. A typical stroller may be used for approximately four to five years; and most families are two babies at present, the number of babies is not increased, and the market prospect of the baby carriage has great potential.

However, there are a number of significant disadvantages with current strollers: firstly, most of the baby carriages cannot be folded, so that the baby carriages occupy a large space under the condition of idle and are difficult to store; secondly, in the foldable baby carriage, the folding mechanism is complex, and a large amount of time and labor are needed to fold when the baby carriage is folded; thirdly, the brake block is usually arranged at the position of a wheel of the existing brake mechanism of the baby carriage, and a person needs to bend down or strongly tread the brake block with feet to lock the baby carriage, so that the brake block is easily damaged, and the old people have many situations when carrying children at present, and the old people are inconvenient to bend over; fourthly, the brake pad is easy to damage and can not brake effectively, and the baby carriage has great potential safety hazard due to the fact that the baby carriage cannot brake, for example, in case reports, the baby carriage slides freely due to the fact that the baby carriage forgets to brake and can not brake, and a baby in the baby carriage is injured.

Disclosure of Invention

The invention aims to provide a baby carriage which can be conveniently stored and folded and has high safety.

The invention aims to achieve the aim, and the main technical solution is a baby carriage which comprises a folding frame capable of being folded and stored in a folding mode and a linkage type brake mechanism arranged at the bottom of the folding frame, wherein the linkage type brake mechanism comprises a connecting shaft movably connected with wheels, a handle, a traction assembly and a brake assembly, the wheels can rotate relative to the connecting shaft, the bottom end of the handle is hinged to the bottom of the folding frame, one end of the traction assembly is connected to the bottom end of the handle, the other end of the traction assembly acts on the connecting shaft, the brake assembly is sleeved on the connecting shaft, and the handle is pulled and/or rotated to drive the brake assembly to lock or unlock the wheels.

In some examples, the folding frame comprises two side frames, a top frame and a bottom frame, the bottom frame comprises two first folding mechanisms and a bottom frame, two ends of the two first folding mechanisms are respectively connected with the bottom frame, and the other end of the bottom frame is hinged to the bottoms of the side frames; the top frame comprises two second folding mechanisms and a top rod; two ends of the second folding mechanism are respectively connected with the ejector rod, and the other end of the ejector rod is hinged to the top of the side frame; the chassis can upwards be folded relative to the first folding mechanism, and the ejector rod can downwards be folded relative to the second folding mechanism, so that the folding frame can be unfolded or folded.

In some examples, the first folding mechanism comprises a first intermediate piece, and two ends of the first intermediate piece are respectively hinged with a first swinging piece, the other end of the first swinging piece is connected with the underframe, the rotating angle range of the first swinging piece relative to the first intermediate piece is 0-90 degrees, and the unfolding or folding state of the first folding mechanism is realized; the arc wall surfaces of the two first swinging parts are tooth surfaces and are meshed with each other for rotation; at least one part of the first swinging pieces is an abutting part, and when the first folding mechanism is in an unfolding state, the abutting parts of the two first swinging pieces are abutted and positioned.

In some examples, the first folding mechanism further comprises a locking assembly, the locking assembly comprises a locking column and a sleeve, the locking column is sleeved with the elastic member and is arranged in the inner cavity of the sleeve; the first swinging piece is provided with a lock hole, the first intermediate piece is provided with a through hole, and one end of the sleeve is fixedly connected to the same side wall of the through hole and is coaxial with the through hole; when the first folding mechanism is in an unfolded state, the lock hole is superposed with the through hole, and the lock column can penetrate through the lock hole and the through hole.

In some examples, the brake assembly comprises a trigger piece sleeved on the connecting shaft, a brake pin assembly and a rotating disc rotating synchronously with the wheel; the brake pin assembly is sleeved at the end of the connecting shaft and located between the trigger assembly and the rotating disc, at least one locking groove is circumferentially arranged on the side wall of the rotating disc facing the brake pin assembly, the brake pin assembly comprises a pin shaft, the trigger assembly can drive the pin shaft to axially move relative to the brake pin assembly, and then the pin shaft is placed in or moved out of the locking groove, so that a locking or unlocking state is realized.

In some examples, the traction assembly includes a traction rope and a shaft sleeve connected to one end of the traction rope, the shaft sleeve is sleeved on the connecting shaft, the other end of the traction rope is connected to the handle, and the shaft sleeve and the connecting shaft rotate circumferentially synchronously.

In some examples, the brake pin subassembly includes the fixing base, the fixing base cover is established the tip of even axle, the round pin axle runs through the setting in the fixing base and can axial displacement through the elastic component that resets, and the trigger part acts on the one end of round pin axle and can make the other end of round pin axle put into or shift out the locked groove.

In some examples, when the triggering member and the connecting shaft rotate synchronously and circumferentially, at least one part of the side wall of the triggering member facing the brake pin assembly is provided with a convex block, the top surface of the convex block is a concave arc surface, when the triggering member and the connecting shaft are in a locking state, the arc surface is abutted against one end of the pin shaft, and one side wall surface of the convex block is an inclined leading-in surface for guiding one end of the brake pin into the arc surface.

In some examples, when the trigger member moves axially relative to the shaft, the trigger member is pushed or pulled, which causes the trigger member and thus the pin to move into or out of the lock groove.

In some examples, the handle comprises a control main body and a support main body, the control main body is hinged to the support main body, a locking structure is arranged at the hinged position of the support main body and the control main body, and the support main body and the control main body are locked and positioned through the locking structure; the supporting main body is connected to the bottom of the side frame, and a hook is hinged to the control main body; at least the middle part of the cross beam at the top of the side frame is of an upward convex structure; when the folding frame is in a folding state, the control main body is turned over relative to the supporting main body, and the hook can be hooked on a protruding structure of a cross beam at the top of the other side frame.

The invention adopts the technical scheme to realize the following effects:

when the baby carriage is not in use, the baby carriage can be folded, is convenient to store and does not occupy space;

second, through rotating the handle, and then linkage brake mechanism carries out the brake of perambulator and handles, and need not to carry out manual push switch and operate every brake block respectively, and is convenient and high-efficient.

And thirdly, the strength of the folding part is improved, and the baby is not easy to be injured due to excessive turnover.

Fourthly, the folding mode and the structure are simple, and the cost is low.

And fifthly, the structure and the linkage mode of the brake mechanism are simple and easy to operate, and even the old does not need to excessively bend down to operate the brake pad.

Drawings

Figure 1 is a schematic structural view of an embodiment of the present invention,

figure 2 is a schematic structural view of the stroller of the embodiment of figure 1,

figure 3 is a schematic structural view of the folding frame of the embodiment of figure 1,

figure 4 is a schematic view of the folding chassis of the embodiment of figure 1,

figure 5 is a schematic view of the first folding mechanism of the embodiment of figure 1 in combination with a latch assembly,

figure 6 is an exploded view of the first pendulum and locking assembly of the embodiment of figure 1,

figure 7 is a schematic diagram of the second folding mechanism of the embodiment of figure 1,

figure 8 is a schematic view of the locking block of the embodiment of figure 1 against a second swing,

figure 9 is a schematic structural view of the brake assembly of the embodiment of figure 1,

figure 10 is an exploded view of the brake assembly of the embodiment of figure 1,

figure 11 is a schematic view of the stroller of the embodiment of figure 1 in a folded configuration,

figure 12 is a side view of the stroller of the embodiment of figure 1 in a collapsed configuration,

figure 13 is a schematic view of the stroller of the embodiment of figure 1 in a braking state,

figure 14 is a schematic view of the trigger of the embodiment of figure 1,

in the figure: the brake assembly 1, the handle 11, the control body 111, the support body 112, the hook 113, the locking member 114, the trigger 12, the protrusion block 121, the brake pin assembly 13, the fixing seat 131, the pin 132, the rotating disc 14, the connecting shaft 15, the folding frame 2, the second folding mechanism 21, the second intermediate member 211, the locking button 2111, the locking block 2112, the second swinging member 212, the push rod 213, the first folding mechanism 22, the first intermediate member 221, the first swinging member 222, the locking hole 2221, the support rod 223, the chassis 224, the locking assembly 225, the locking column 2251, the sleeve 2252, the side frame 23, the wheel 3, the axle 31, the support frame 4, the table top 5, the fixing sleeve 6, the traction rope 7 and the traction rope 8.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning that a number of one element may be one in one embodiment or multiple in another embodiment, and the terms "a" and "an" are not to be interpreted as limiting the number.

The first embodiment is as follows:

referring to figures 1 to 14 of the drawings accompanying this specification, a stroller according to a preferred embodiment of the present invention is illustrated, the stroller comprising a foldable frame 2 capable of being folded in half and a linkage type brake mechanism, wheel assemblies at four corner ends of the bottom of the foldable frame 2, the wheel assemblies comprising wheels 3; the linkage type brake mechanism is mainly used for controlling the baby carriage to move and is arranged at the bottom of the folding frame 2.

Specifically, in the present embodiment, the folding frame 2 includes two side frames 23, a bottom frame, and a top frame, which are oppositely disposed; the bottom frame comprises two first folding mechanisms 22 and a bottom frame 224, and the top frame comprises two second folding mechanisms 21 and a top rod 213; the two side frames 23 are a front side frame and a rear side frame respectively, and two front wheels 3 are arranged at the bottom of the front side frame; the two ends of the first folding mechanism 22 are respectively connected with the bottom frame 224, so as to form a bottom frame; in order to ensure the turning synchronism and the turning alignment, the two first folding mechanisms 22 are connected through a support rod 223, the base frame 224 is in an H shape, and the other end of the base frame 224 is hinged to the bottom of the side frame 23; two ends of the second folding mechanism 21 are respectively connected with a top rod 213 to form a top frame, and the other end of the top rod 213 is hinged to the top of the side frame 23; as shown in fig. 11 and 12, the bottom frame 224 can be folded upward and folded back with respect to the first folding mechanism 22, and the top bar 213 can be folded downward and folded back with respect to the second folding mechanism 21, thereby achieving the unfolded or folded state of the folding frame 2.

Further, the first folding mechanism 22 includes a first intermediate member 221, and two ends of the first intermediate member 221 are respectively hinged with a first swinging member 222, the other end of the first swinging member 222 is connected to the bottom frame 224, the rotating angle range of the first swinging member 222 relative to the first intermediate member 221 is 0 to 90 °, so as to realize the unfolding or folding state of the first folding mechanism 22; the arc-shaped wall surfaces of the two first swinging members 222 are tooth surfaces and rotate in mesh with each other; at least one part of the first swinging members 222 is an abutting part, and when the first folding mechanism 22 is in the unfolded state, the abutting parts of the two first swinging members 222 are in abutting position; the second folding mechanism 21 includes a second intermediate member 211 and a second swinging member 212 hinged to two ends of the second intermediate member 211 respectively; the other end of the second swinging member 212 is connected with the top rod 213, and the rotating angle range of the second swinging member 212 relative to the second intermediate member 211 is 0-90 degrees, so that the unfolding or folding state of the second folding mechanism 21 is realized; as shown in fig. 7 and 8, the second intermediate member 211 is provided with a locking key 2111, and the locking key 2111 is provided with a locking block 2112; when the second folding mechanism 21 is in the unfolded state, the locking block 2112 abuts against the second swinging member 212, and when the locking key 2111 is pressed, the locking block 2112 falls down, and the second folding mechanism 21 can be folded freely; the side frame 23 comprises two beams and two pillars which are sequentially enclosed, at least the upper half part of each pillar is bent outwards, the caliber of a frame body formed by enclosing the tops of the second folding mechanism 21 and the side frame 23 is larger than that of a frame body formed by enclosing the bottoms of the first folding mechanism 22 and the side frame 23, and at least the middle part of each beam at the top of the side frame 23 is of an upward protruding structure which is convenient for being held by hands; as shown in fig. 11 and 12, the first folding mechanism 22 and the second folding mechanism 21 can perform offset folding during folding.

Of course, in some embodiments, the first folding mechanism 22 is used as a driving folding mechanism, and the second folding mechanism 21 is used as a driven folding mechanism, in this embodiment, the second folding mechanism 21 does not need to be provided with the locking button 2111, and only the second swinging member 212 and the second intermediate member 211 need to be hinged, and when the first folding mechanism 22 is folded, the second folding mechanism 21 is also folded.

In order to ensure that when the first folding mechanism 22 is unfolded, the first swinging member 222 is more stably abutted and the situation of excessive folding is avoided, the first folding mechanism 22 further comprises a locking assembly 225, the locking assembly 225 comprises a locking column 2251 and a sleeve 2252, the locking column 2251 is sleeved with an elastic member and is arranged in an inner cavity of the sleeve 2252, one end of the elastic member abuts against the locking column 2251, and the other end of the elastic member abuts against the inner wall of the sleeve 2252; a locking hole 2221 is formed in the first swinging member 222, a through hole is formed in the first intermediate member 221, and one end of the sleeve 2252 is fixedly connected to the same side wall of the through hole and is coaxial with the through hole; when the first folding mechanism 22 is in the unfolded state, the locking hole 2221 coincides with the through hole, and the locking column 2251 can penetrate through the locking hole 2221 and the through hole; one end of the lock cylinder 2251 exposed to the outside is a pulling end, and the other end can penetrate through the through hole and be inserted into the lock hole 2221; the lock cylinder 2251 is axially moved by releasing the pull-up end, so as to realize an unlocking or locking state; the end of the other end of the lock column 2251 is arc-shaped, at least one section of the outer wall of the pulling end is provided with a thread, the outer wall provided with the thread is wound with a pull rope 8, the lock column 2251 can be pulled out of the lock hole 2221 only by pulling the pull rope 8 axially and then pulling the pull rope 8 upwards, at this time, the first folding mechanism 22 can be folded freely, and as long as the pull rope 8 is loosened, the lock column 2251 is locked into the lock hole 2221 again under the action of the elastic element, the first folding mechanism 22 cannot be folded freely; further, the two diametrically opposite pulling ends are wound and connected by a pulling rope 8.

In this embodiment, the first folding mechanism 22 includes two locking assemblies 225, each locking hole 2221 corresponds to one locking assembly 225, and the two locking assemblies 225 can be unlocked or locked simultaneously; the cross section of the first intermediate member 221 is a U-shape with an opening facing downward, and the first swinging member 222 is located in the U-shaped chamber of the first intermediate member 221.

The baby carriage also comprises a support frame 4 for a baby carriage seat, the support frame 4 is positioned in the folding frame 2, the support frames 4 are respectively hinged on the side frames 23, and when the folding frame 2 is folded and stored, the support frame 4 is turned over relative to the side frames 23, so that the storage is convenient; in addition, many families are two or more babies at present, and in order to adapt to the number of babies at present, the baby stroller comprises two support frames 4, the two support frames 4 are arranged in the folding frame 2 in a radial opposite manner, and the two support frames 4 are respectively hinged to the two side frames 23, so that at least two babies can be seated on the baby stroller at the same time.

In this embodiment, the stroller further comprises a table top 5, when the second folding mechanism 21 is in the unfolded state, two ends of the table top 5 are respectively erected on the second folding mechanism 21, and the frame formed by enclosing the top of the second folding mechanism 21 and the top of the side frame 23 is divided into two areas, which can support two infants facing each other, and further, the table top 5 comprises a common table top and cup slots symmetrically arranged for holding water cups.

In order to prevent the hands of the infant from touching the hinged end and being clamped, in this embodiment, the other end of the push rod 213 is hinged to an adapter kit for preventing hands from being clamped, the adapter kit is arranged at the corner end of the top of the side frame 23, the other end of the push rod 213 is wrapped in the inner cavity of the adapter kit, and the push rod 213 can rotate relative to the adapter kit.

The linkage type brake mechanism comprises a connecting shaft 15 movably connected with the wheel 3, the wheel 3 can independently rotate relative to the connecting shaft 15, namely the connecting shaft 15 is sleeved on an axle 31 of the wheel 3, and the rear wheel 3 is a rear wheel 3; it is also possible to implement the axle 31 with a bearing on the body, which is connected to the inner cavity of the connecting shaft 15 through the bearing, so as to realize the independent rotation of the rear wheel 3 relative to the connecting shaft 15.

Further, the linkage type brake mechanism further comprises a handle 11, a traction assembly and a brake assembly 1, in this embodiment, the handle 11 comprises a first folding body and a second folding body, the first folding rod is used as a support main body 112, the support main body 112 is a part which is connected with the folding frame 2 and plays a supporting role, the second folding rod is used as a control main body 111, the control main body 111 is a control rod for operating the direction of the baby carriage, and the control main body 111 can be folded relative to the support main body 112; in order to avoid the folding effect caused by no need of folding, in this embodiment, an external locking element 114 is disposed at the hinged end between the supporting body 112 and the control body 111, the locking element 114 includes a locking part and a connecting part hinged to the locking part, the locking part can be fastened to the connecting part, the connecting part is fixedly sleeved at the bottom of the control body 111, the locking part is fixedly sleeved at the top of the supporting body 112, and when the locking part is fastened to the connecting part, the supporting body 112 is fixedly positioned with respect to the control body 111, and the folding cannot be performed; when the locking part is unlocked, the supporting body 112 can be folded relative to the control body 111; the bottom of the support body 112 is hinged to the bottom cross member of one of the side frames 23, so that the handle 11 is rotated with respect to said side frame 23; in order to prevent the handle 11 from tilting without any other force due to an excessively large rotation angle of the handle 11, in this embodiment, a shaft rod is disposed inside the side frame 23, a link mechanism for limiting the rotation angle of the handle 11 is sleeved on the shaft rod, and the other end of the link mechanism is hinged to the support main body 112; when the handle 11 rotates to the maximum angle, the supporting body 112, the link mechanism and the shaft rod form a triangular area, which has certain stability; in addition, as shown in fig. 11 and 12, a hook 113 is hinged on the control main body 111, when the folding frame 2 is in the folding and accommodating state, the control main body 111 is folded relative to the support main body 112, and the hook 113 can be hooked on a protruding structure on the cross beam at the top of the other side frame 23, so as to form a lifting frame, which is convenient for holding and lifting the whole stroller.

In this embodiment, the traction assembly includes a traction rope 7 and a shaft sleeve connected to one end of the traction rope 7, the shaft sleeve is sleeved on the connecting shaft 15, the other end of the traction rope 7 is connected to the bottom of the support main body 112, and the shaft sleeve is further driven to rotate circumferentially by rotating the control main body 111; further, the shaft sleeve and the connecting shaft 15 rotate in the circumferential direction synchronously.

It should be noted that, in the present embodiment, the brake assembly 1 includes a trigger 12 sleeved on a connecting shaft 15, a brake pin assembly 13, and a rotating disc 14 rotating synchronously with the wheel 3; the brake pin assembly 13 is sleeved at the end of the connecting shaft and is located between the trigger assembly 12 and the rotating disc 14, at least one locking groove is circumferentially arranged on the side wall of the rotating disc 14 facing the brake pin assembly 13, the brake pin assembly 13 comprises a pin shaft 132, the trigger assembly 12 can drive the pin shaft 132 to axially move relative to the brake pin assembly 13, and then the pin shaft 132 is placed in or moved out of the locking groove, so that a locking or unlocking state is realized; the brake pin assembly 13 further includes a fixing seat 131, the fixing seat 131 is sleeved on the end portion of the connecting shaft 15, the pin shaft 132 is arranged in the fixing seat 131 in a penetrating manner through a reset elastic member and can move axially, the trigger member 12 acts on one end of the pin shaft 132 and can enable the other end of the pin shaft 132 to be placed in or moved out of the locking groove; the embodiment that the triggering part 12 drives the pin shaft 132 to move axially is two, one is that the triggering part 12 and the connecting shaft 15 rotate synchronously and circumferentially, so that the pin shaft 132 moves axially; alternatively, the trigger member 12 is axially movable relative to the shaft 15 to axially move the pin 132.

In this embodiment, the former embodiment is adopted, the triggering member 12 is fixedly sleeved on the end of the connecting shaft 15, the connecting shaft 15 rotates circumferentially relative to the fixing seat 131, the handle 11 rotates to drive the shaft sleeve and the connecting shaft 15 to rotate circumferentially synchronously, and the triggering member 12 is further linked to rotate circumferentially, at least one part of the side wall surface of the triggering member 12 facing the pin 132 is provided with a limiting groove along the circumferential direction, a protruding block 121 is arranged in the limiting groove, the top surface of the protruding block 121 is a downward-recessed arc surface, and one side wall surface of the protruding block 121 is an inclined lead-in surface for guiding one end of the pin 132 to enter the arc surface; when the braking action is not performed, one end of the pin shaft 132 is placed in the clearance area of the limiting groove; when the trigger 12 rotates circumferentially, the guiding surface gradually abuts against one end of the pin 132 and guides one end of the pin 132 onto the arc surface to be abutted and locked, so that the pin 132 moves axially towards the lock groove direction, and the other end of the pin 132 is pushed into the lock groove, thereby realizing the braking effect; when the trigger 12 is rotated in the opposite direction, the pin 132 falls back to the clearance area from the arc surface, and under the action of the reset elastic member, the pin 132 is separated from the locking groove, so as to unlock the lock.

If the latter embodiment is adopted, structures such as the protruding block 121 do not need to be arranged, and the triggering member 12 pushes and presses one end of the pin shaft 132, so that the pin shaft 132 axially moves relative to the fixed seat 131, and the other end of the pin shaft 132 is placed in the locking groove, thereby realizing the braking effect; further, in some embodiments, the shaft sleeve is movably sleeved on the connecting shaft 15, the shaft sleeve can rotate circumferentially relative to the connecting shaft 15 and move axially towards the trigger 12, and the shaft sleeve abuts against the trigger 12, so that the trigger 12 moves axially towards the pin 132, and the pin 132 is further pressed; in addition, a reset elastic element is disposed between the fixing seats 131 of the triggering element 12, and when the shaft sleeve does not abut against the triggering element 12, the triggering element 12 returns to the initial position, so that the pin 132 is reset and then unlocked.

In addition, an embodiment is adopted as the shaft sleeve to rotate in the circumferential direction and move axially towards the trigger member 12, and meanwhile, the trigger member 12 is driven to rotate in the circumferential direction and move axially towards the pin shaft 132.

In this embodiment, the pin 132 includes a pin 132 portion and an abutting portion, the pin 132 portion is connected to an inner cavity of the abutting portion through an elastic member, wherein the side wall surface or the protruding block 121 of the trigger 12 acts on the abutting portion, and the advantage of the design is that the pin 132 plays a role of buffering when being placed in the lock groove; if only the pin 132 is used alone, the locking groove is easily worn during the process of being placed in the locking groove.

In an embodiment, the two pulling ropes 7 are arranged in parallel up and down and are respectively connected to the supporting body 112 and the shaft sleeve, when the handle 11 rotates, one pulling rope 7 is in tension, and the other pulling rope is in slack, so as to ensure that the shaft sleeve returns to the original position.

In addition, the fixed seat 131 is fixedly connected to the bottom of the rear side frame 23, a fixed sleeve 6 is fixedly sleeved on a cross beam at the bottom of the rear side frame 23, the fixed sleeve 6 is provided with two guide through holes for guiding the traction rope 7 to be connected to the shaft sleeve, and the traction rope 7 penetrates through the guide through holes to be connected to the shaft sleeve.

In addition, in the stroller of the present embodiment, a baby basket is placed in the foldable frame 2 with the table panel 5 removed, and the baby basket can be placed on the two supporting frames 4, so as to form a crib for a baby to sleep.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention.

The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. The utility model provides a baby carriage, its characterized in that, is including folding frame (2) that can the fifty percent discount be accomodate and the coordinated type brake mechanism of setting in folding frame (2) bottom, coordinated type brake mechanism includes even axle (15), a leader (11), traction assembly and brake subassembly (1) with wheel (3) swing joint, wheel (3) are even axle (15) relatively and can be rotated, the bottom of handle (11) articulates in the bottom of folding frame (2), traction assembly's one end is connected in the bottom of handle (11), and the other end acts on even axle (15), brake subassembly (1) cover is established on even axle (15), orders about brake subassembly (1) locking or unblock wheel (3) through pulling and/or rotation handle (11).

2. The stroller according to claim 1, wherein the folding frame (2) comprises two side frames (23), a top frame and a bottom frame, the bottom frame comprises two first folding mechanisms (22) and a bottom frame (224), two ends of the first folding mechanisms (22) are respectively connected with the bottom frame (224), and the other ends of the bottom frame (224) are hinged to the bottoms of the side frames (23); the top frame comprises two second folding mechanisms (21) and a top rod (213); two ends of the second folding mechanism (21) are respectively connected with the ejector rod (213), and the other end of the ejector rod (213) is hinged to the top of the side frame (23); the bottom frame (224) can be folded upwards relative to the first folding mechanism (22), the ejector rod (213) can be folded downwards relative to the second folding mechanism (21), and then the folding frame (2) can be unfolded or folded.

3. The stroller of claim 2, wherein the first folding mechanism (22) comprises a first intermediate member (221) and a first swinging member (222) is hinged to each of two ends of the first intermediate member (221), the other end of the first swinging member (222) is connected to the bottom frame (224), the first swinging member (222) is rotated relative to the first intermediate member (221) within a range of 0-90 ° to realize the unfolding or folding state of the first folding mechanism (22); the arc-shaped wall surfaces of the two first swinging members (222) are tooth surfaces and are meshed with each other for rotation; at least one part of the first swinging pieces (222) is an abutting part, and when the first folding mechanism (22) is in an unfolding state, the abutting parts of the two first swinging pieces (222) are abutted and positioned.

4. The stroller of claim 3, wherein the first folding mechanism (22) further comprises a locking assembly (225), the locking assembly (225) comprising a locking post (2251) and a sleeve (2252), the locking post (2251) being provided with a resilient member and being disposed within an interior of the sleeve (2252); a lock hole (2221) is formed in the first swinging piece (222), a through hole is formed in the first middle piece (221), and one end of the sleeve (2252) is fixedly connected to the same side wall of the through hole and is coaxial with the through hole; when the first folding mechanism (22) is in an unfolded state, the lock hole (2221) is overlapped with the through hole, and the lock column (2251) can penetrate through the lock hole (2221) and the through hole.

5. The stroller of claim 1, wherein the brake assembly (1) comprises a trigger member (12) fitted over a coupling shaft (15), a brake pin assembly (13), and a rotating disc (14) rotating synchronously with the wheel (3); brake round pin subassembly (13) cover is established at the tip of even axle (15) and is located between trigger part (12) and rolling disc (14), at least one locked groove has been arranged to rolling disc (14) circumference on the lateral wall towards brake round pin subassembly (13), brake round pin subassembly (13) include a round pin axle (132), trigger part (12) can order about round pin axle (132) brake round pin subassembly (13) axial displacement relatively, and then make round pin axle (132) put into or shift out the locked groove, realize locking or unblock state.

6. The stroller of claim 1, wherein the traction assembly comprises a traction rope (7) and a shaft sleeve connected to one end of the traction rope (7), the shaft sleeve is sleeved on the connecting shaft (15), the other end of the traction rope (7) is connected to the handle (11), and the shaft sleeve and the connecting shaft (15) rotate circumferentially synchronously.

7. The stroller according to claim 5, wherein the brake pin assembly (13) comprises a fixed seat (131), the fixed seat (131) is sleeved on the end of the connecting shaft (15), the pin shaft (132) is disposed in the fixed seat (131) through a return elastic member and can move axially, and the triggering member (12) acts on one end of the pin shaft (132) and can enable the other end of the pin shaft (132) to be placed in or moved out of the locking groove.

8. The stroller of claim 5, wherein the trigger member (12) has a protrusion on at least a portion of a side wall thereof facing the brake pin assembly (13) when the trigger member (12) rotates in a circumferential direction in synchronization with the coupling shaft (15), the protrusion having a top surface formed as a concave arc surface, the arc surface abutting against an end of the pin shaft (132) when the stroller is in the locked state, and a side wall surface of the protrusion being an inclined guide surface for guiding an end of the brake pin into the arc surface.

9. A stroller according to claim 5, characterized in that the trigger member (12) is pushed or pulled when the trigger member (12) is axially displaced relative to the coupling shaft (15) so that the trigger member (12) and thus the pin (132) is placed in or removed from the locking groove.

10. The stroller according to claim 1, wherein the handle (11) comprises a control body (111) and a support body (112), the control body (111) is hinged to the support body (112), a locking structure is arranged at the hinged position of the support body (112) and the control body (111), and the support body (112) and the control body (111) are locked and positioned through the locking structure; the supporting main body (112) is connected to the bottom of the side frame (23), and a hook (113) is hinged to the control main body (111); at least the middle part of the cross beam at the top of the side frame (23) is of an upward convex structure; when the folding frame (2) is in a folding state, the control main body (111) is turned over relative to the support main body (112), and the hook (113) can be hooked on a convex structure of a cross beam at the top of the other side frame (23).