CN105501355B - Foldable baby carriage - Google Patents

Abstract

The present invention discloses a foldable baby stroller, comprising a body, a first foldable backrest pivotally connected to the body, and a foldable handlebar, the handlebar comprising a handlebar body and a sleeve arranged below the handlebar body, a frame tube is arranged above a front wheel frame, the frame tube and the sleeve are pivotally connected together, a fixed shaft is arranged on the frame tube, and the free end of the sleeve abuts against the fixed shaft, and the baby stroller can be folded and contracted to a large extent by pivotally connecting the handlebar, the foldable and collapsible rear wheel device, and the first backrest, so as to reduce the volume and facilitate transportation and carrying.

Description

A foldable baby car

technical field

The invention relates to a foldable baby carriage.

Background technique

At present, stroller companies will put more and more energy on rideable children's vehicles, which are popular among children because of their stylish appearance and easy learning; however, the transportation of strollers also brings certain problems, for example, When it needs to be placed in the trunk for transportation, it is often limited by its large size and cannot be put into the trunk; therefore, if there is a baby carriage that can be fully folded and the volume is reduced to a certain extent, it will be very popular in the market.

Contents of the invention

The object of the present invention is to overcome the above-mentioned shortcomings, and provide a foldable baby carriage.

In order to achieve the above object, the specific solution of the present invention is as follows: a foldable children's car, including a body, the body is provided with a foldable rear wheel device, the front end shaft is connected to a front wheel frame; The rotating shaft at the lower part of the frame is connected with the front wheel; the body body is also pivotally connected with a foldable first back seat; it also includes a foldable handlebar, the handlebar includes a handlebar body and is located under the handlebar body. A casing, the top of the front wheel frame is provided with a frame tube, and the frame tube is pivotally connected with the casing; the frame tube is provided with a fixed shaft, and the free end of the casing is against the fixed shaft;

The lower part of the vehicle body is also provided with a foldable pedal mechanism.

Wherein, the pedal mechanism includes a folding rod; one end of the folding rod is pivotally connected to the body of the vehicle body, and the other end is pivotally connected to a group of foldable pedal blocks; the body body is provided with lugs; The folding rod is pivotally connected with the card ear; it also includes a folding mechanism for making the pedal mechanism folded to different angles and then fixed; the folding mechanism includes at least one ear card slot, positioning A pull rod and an elastic member that enables one end of the positioning pull rod to be clamped in the ear slot.

Wherein, there are two clips, and the folding rod includes two sub-rods, the sub-rods are provided with a straight hole, and the straight hole sets one end of the positioning pull rod; the top surface of the body body is provided with cushion.

Wherein, the frame tube is provided with an adjustment slot, the free end of the sleeve is fixed with a pivot shaft, and the sleeve is pivotally connected with the frame tube through the pivot shaft and the adjustment slot; the sleeve is provided with a switch column There is a shrapnel in the casing, and a post is provided on one side of the shrapnel, and the post is sleeved in the hole of the switch post; it also includes a case for holding the post and pushing the post back to the sleeve. button.

Wherein, it also includes a second back chair detachably connected to the first back chair, the second back chair includes a second back body; the first back chair includes a first back body;

The switch mechanism includes a plug-in board arranged on the lower side of the second back body; the plug-in board is provided with a fixing hole, and the first back body is provided with a jack for matching with the plug-in board; the switch mechanism also includes a fixed plug-in block; the fixed plug-in One side of the block is a slope and the side is provided with a stopper matched with the fixing hole;

The switch mechanism also includes a first reset elastic member disposed between the other side of the fixed plug and the first back body for resetting and rebounding the fixed plug;

The switch mechanism also includes a switch plate located in the first back body, one side of the switch plate is provided with a switch device, the first back body is provided with a switch hole for installing the switch device; the other side of the switch plate is provided with a slide plate , the free end of the slide plate is provided with a slope for matching with one side of the fixed plug;

The switch mechanism also includes a second reset elastic member disposed between the switch plate and the first back body for resetting the switch plate.

Wherein, the top surface of the stopper is an inclined surface; the switch plate is provided with a guide hole, and the first back body is provided with a guide post matched with the guide hole.

Wherein, it also includes a guardrail device arranged on the second back chair for preventing children from falling; the guardrail device includes two fixed arms respectively arranged on the second back chair, and the free ends of the two fixed arms are respectively The movable arm is pivotally connected; the free end of the movable arm is provided with a clamping device for connecting the free ends of the two movable arms.

Wherein, the front wheel includes a rim and a pedal device for driving the front wheel to rotate; the front wheel is provided with a clutch mechanism that prevents the pedal device from following the rotation of the front wheel when the pedal device is not in use; The pedal device includes a pedal and a crankshaft;

The clutch device includes a drive shell connected to the rim and arranged coaxially and a set of expansion blocks. A circle of periphery is provided on one side of the drive shell, and a pit is provided on the inner wall of the periphery. One end of each expansion block is connected to the drive shell. Pivot connection, one outer surface of the expansion block is provided with a rib that matches the recess, and the other ends of the two expansion blocks are connected together by an elastic connector;

A clutch chamber is provided on the inner side of each expansion block; a horizontal block is provided on the crankshaft for enabling the rib to be clamped into the pit; the horizontal block is arranged in the clutch chamber, and the other ends of the two expansion blocks are provided with a The expansion block follows the convex point where the horizontal block rotates.

The cross block includes a fixed portion fixed to the crankshaft and resisting arms extending from both sides of the fixed portion;

The resisting arm is provided with a hollow groove, and also includes a fixed piece fixedly connected with the crankshaft, and the fixed piece is clamped in the hollow groove;

The free end of the resisting arm is wedge-shaped, and the clutch cavity is also wedge-shaped.

Wherein, there are multiple pits and ribs; the other end of each expansion block is provided with a hook, and the elastic connecting piece connects the two hooks together.

Wherein, the rear end shaft of the body body is connected with a steering rod for the parents to control the steering of the front wheels of the stroller; one end of the steering rod is radially provided with a first steering lug; the front wheel frame is radially provided with a second steering lug, and the first A steering connecting rod is connected between the first steering lug and the second steering lug; when the steering rod rotates, the front wheel frame is driven to rotate through the steering connecting rod; The end is pivotally connected with a control handle.

Wherein, the other end of the steering rod is provided with a handle.

Wherein, it also includes a protective umbrella detachably connected with the second back chair; one side of the second back chair is also provided with a headrest.

The rear wheel device includes a rear wheel, a rear wheel support arm for connecting the rear wheel with a rotating shaft, and a fixed frame with one end pivotally connected to the vehicle body and the other end connected to the rear wheel support arm; the vehicle body is provided with a fixed frame to receive Shelf slots to accommodate the retainer when folded.

Wherein, the rear end of the vehicle body is provided with a support rod.

Wherein, the support rod is provided with a horizontal shaft rod, and also includes a rear wheel switch mechanism, the rear wheel switch mechanism includes a switch handle block that is slidably connected with the fixed frame, and also includes a switch handle block and the fixed frame. An elastic block reset part used to reset the switch block; one end of the switch block is provided with a rod groove for clamping the horizontal shaft rod.

Wherein, the bottom of the body body is also provided with a positioning hole, and the front end of the switch handle block is provided with a locking protrusion matched with the positioning hole.

Wherein, the rear wheel support arm includes two sub-support arms which can pivotally connect a rear wheel respectively, and a detachable loading basket is arranged between the two sub-support arms.

Wherein, the top surface of the body body is provided with a cushion

The beneficial effects of the present invention are: the body body is also pivotally connected with a foldable first back seat; it also includes a foldable handlebar, and the handlebar includes a handlebar body and a handle arranged below the handlebar body. Sleeve, a frame tube is provided above the front wheel frame, and the frame tube is pivotally connected with the sleeve tube; a fixed shaft is provided on the frame tube, and the free end of the sleeve tube is against the fixed shaft; the handlebar can be folded, The collapsible rear wheel device and the first back seat are pivotally connected, and the stroller can be folded and contracted to a large extent, reducing the volume, and being convenient for transportation and carrying.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a perspective view of the present invention after being folded;

Fig. 3 is the perspective view of frame tube of the present invention;

Fig. 4 is a schematic structural view of the cooperation between the pedal mechanism of the present invention and the body of the vehicle body;

Fig. 5 is a partial enlarged view of Fig. 4;

Fig. 6 is the perspective view of the first back chair and the second back chair of the present invention;

Fig. 7 is the perspective view of the second back chair of the present invention;

Fig. 8 is an exploded schematic view of the second back chair and the first back chair of the present invention;

Fig. 9 is a perspective view of the fixed plug of the present invention;

Fig. 10 is a perspective view of the front wheel of the present invention;

Fig. 11 is the structural schematic view of the front wheel of the present invention throwing away the rim and the tire;

Fig. 12 is a schematic structural view of the cross block of the present invention when it cooperates with the crankshaft;

Figure 13 is a perspective view of the expansion block of the present invention;

Fig. 14 is a structural schematic diagram of removing the vehicle body body;

Fig. 15 is a perspective view of the body of the vehicle body of the present invention;

Figure 16 is a perspective view of the rear wheel device of the present invention;

Fig. 17 is the perspective view of the rear wheel device of the present invention except the switch handle block;

Fig. 18 is a perspective view of a switch handle block of the present invention;

Explanation of reference numerals among Fig. 1 to Fig. 18:

f1-body body; f11-in the frame slot; f12-support rod; f13-horizontal rod; f14-positioning hole; f2-rear wheel support arm; ; f6-switch handle block; f61-rod slot; f62-carding protrusion; f7-folding rod; f71-foot step block; f72-positioning rod; f73-straight hole; groove;

b1-handlebar body; b2-sleeve;

m2-front wheel frame; m21-adjustment slot; m4-steering rod; m41-first steering ear; m42-second steering ear; m43-steering connecting rod; m5-telescopic rod; m6-control handle;

c1-rim; c2-tyre; c3-pedal; c4-crankshaft; c5-drive shell; c6-periphery; c61-dimple; c7-cross block; piece; c8-expansion block; c81-convex rib; c82-clutch chamber; c83-bulge; c84-hook.

k1-first back chair; k11-switch plate; k12-switch device; k13-slider; k14-guide hole; k15-fixed plug; k16-first reset spring; k19-block;

k2-the second back chair; k21-board; k22-fixing hole;

k3-protective umbrella; k4-fixed arm; k41-movable arm;

k5 - headrest.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

As shown in Fig. 1 to Fig. 2, the foldable children's vehicle described in this embodiment has a front wheel frame m2 connected to its front end shaft;

The front wheel is connected to the lower rotating shaft of the front wheel frame m2; the first foldable back seat k1 is also pivotally connected to the body f1; it also includes a foldable handlebar, which includes a handlebar body b1 and The bushing b2 located under the handlebar body b1 is provided with a frame tube above the front wheel frame m2, and the frame tube and the bushing b2 are pivotally connected together; the frame tube is provided with a fixed shaft, and the bushing b2 is free end against the fixed shaft; the lower part of the body f1 is also provided with a foldable pedal mechanism; the foldable and foldable rear wheel device and the first back seat k1 are articulated through the handlebar. It can achieve a large degree of folding and shrinkage, reduce the volume, and facilitate transportation and portability; the foldable foot pedal mechanism can provide a place for children to step on when in use, and can be folded when not in use.

As shown in Figures 4 to 5, specifically, the pedal mechanism described in this embodiment includes a foldable lever f7; one end of the folded lever f7 is pivotally connected to the body f1, and the other end is pivotally connected to a set of movable The folded foot block f71; the foot block f71 is pivotally connected to the folding rod f7, so that it has the functions that the foot block f71 can be folded, and the folding rod f7 can also be folded, and the folding function is improved.

The car body f1 is provided with a buckle f74; the folding rod f7 is pivotally connected to the buckle f74; it also includes a folding mechanism for making the pedal mechanism folded to different angles and then fixed; the folding mechanism includes At least one ear slot f75, a positioning rod f72, and an elastic member for engaging one end of the positioning rod f72 in the ear slot f75 are provided on the lug f74. When in use, pull down the positioning rod, and the free end of the positioning rod will break away from the ear clip slot f75. When the folding rod f7 is bent to the required angle, release the positioning rod, and the positioning rod will continue to be stuck on the corresponding ear clip due to the action of the elastic member Positioning is done in slot f75. Therefore, this structure can make the pedal mechanism stay fixed at different angles, which is convenient for different children.

In the foldable children’s vehicle described in this embodiment, there are two ears f74, and the folding rod f7 includes two sub-rods, and the sub-rods are provided with a straight hole f73, and the straight hole f73 sets One end of the tie rod f72; the design of two lugs f74 and two sub-rods will make the structure of the pedal mechanism more reasonable and more stable.

The top surface of the body f1 is provided with a cushion. The cushion can improve the comfort of children and improve the experience of the present invention.

As shown in Figure 3, in the collapsible baby carriage described in this embodiment, the frame tube is provided with an adjustment slot m21, the free end of the sleeve b2 is fixed with a pivot shaft, and the sleeve b2 passes through the pivot shaft. And the adjustment slot m21 is pivotally connected with the frame pipe; the sleeve b2 is provided with a switch column hole, and the casing b2 is provided with a shrapnel, one side of the shrapnel is provided with a clamping column, and the switch column hole is sleeved with the clamping column; It also includes a clamping shell for clamping the clamping column and a key switch for pushing the clamping column back to the sleeve. Specifically, during normal use, the free end of the sleeve b2 is against the fixed shaft. When it needs to be folded, press and hold the button switch to make the clamping post disengage from the clamping case, and lift the handlebar upwards. At this time, the pivot shaft slides all the way to the bracket After the top end of the adjustment slot m21 on the pipe, it can be folded backwards to realize the folding function of the handlebar.

As shown in Fig. 6 to Fig. 9, in the foldable baby carriage described in this embodiment, the second back seat k2 includes a second back body; the first back seat k1 includes a first back body; the switch mechanism includes There is a board k21 located on the lower side of the second back body; the board k21 is provided with a fixing hole k22, and the first back body is provided with a jack that cooperates with the board k21; the switch mechanism also includes a fixed plug k15; One side of the plug k15 is an inclined plane and the side is provided with a stopper k19 matched with the fixing hole k22; The first reset elastic member k16 used to make the fixed plug k15 reset and rebound; the switch mechanism also includes a switch board k11 located in the first back body, and a switch device k12 is provided on one side of the switch board k11, and the first back body is provided with a switch device k12. There is a switch hole k18 for installing the switch device k12; the other side of the switch plate k11 is provided with a slide plate k13, and the free end of the slide plate k13 is provided with a slope for matching with one side of the fixed plug k15; the switch mechanism also includes There is a second resetting elastic member disposed between the switch board k11 and the first back body for resetting the switch board k11. The second reset spring is a spring, and its principle is as follows: when the disassembled first back chair k1 and second back chair k2 need to be plugged together, the switch device k12 is lifted up, so that the switch board k11 also goes up Movement, because the free end of the slide plate k13 on the other side of the switch plate k11 is an inclined plane, and one side of the fixed insert k15 is also an inclined plane, so when the slide plate k13 moves upward with the switch plate k11, the fixed insert k15 moves backwards, Thus the stopper k19 retreats subsequently; at this time, insert the plugboard k21 into the socket and make the fixing hole k22 reach the position corresponding to the stopper k19, then release the switch device k12, due to the effect of the second reset spring, the switch The device k12 drives the switch plate k11 to move downward and return to its position, and due to the action of the first reset elastic member k16, the fixed insert k15 moves forward, and finally sets the stopper k19 in the fixed hole k22 to complete the locking action. When disassembling, in the same way, the switch device k12 is lifted up, the stopper k19 is separated from the fixing hole k22, and the second back seat k2 is pulled out. The top surface of the stopper k19 of a stroller suitable for children of multiple ages described in the embodiment is an inclined surface. In this embodiment, the top surface of the stopper k19 is a slope, and the bottom surface is a plane. Due to such arrangement, when the disassembled first back chair k1 and second back chair k2 are plugged together, the plugging can be directly completed without lifting the switch device k12 upward. Specifically, when the board k21 is inserted into the jack, the free end of the board k21 touches the top surface of the stopper k19, and due to the action of the inclined surface, the fixed plug k15 will naturally retreat. When the board k21 is inserted into the jack and the The fixing hole k22 reaches the position corresponding to the stopper k19, and due to the action of the first return elastic member k16, the fixing insert k15 moves forward, and finally sets the stopper k19 in the fixing hole k22 to complete the locking action. This setting makes the plugging action more convenient and fast.

One side of the second back seat k2 is also provided with a headrest k5. One side of the second back chair k2 is also provided with a headrest k5, which plays a role of head support, can protect young children's cervical spine and head, and prevent young children from being physically injured. It also includes a guardrail device that is located on the second back seat k2 and is used to prevent children from falling, which can surround young children and prevent young children from falling. In the baby carriage suitable for children of multiple ages described in the embodiment, the guardrail device includes two fixed arms k4 respectively arranged on the second back seat k2, and the free ends of the two fixed arms k4 are respectively pivotally connected with movable arms k41. When children need to get on the car, the guardrail device can be opened by opening the movable arm k41, which is convenient for children to get on the car. When the child needs to be protected, the movable arm k41 can be fixed so that the guardrail device becomes closed to protect children's safety . In the baby carriage suitable for children of multiple ages described in the embodiment, the free end of the movable arm k41 is provided with a clamping device connecting the free ends of the two movable arms k41, which can make the guardrail device more secure when it becomes closed , to prevent separation, and secondly, it can be convenient for parents to use and prevent children from disassembling by mistake.

As shown in Figures 10 to 13, in the foldable children's vehicle described in this embodiment, the front wheel includes a rim c1 and a pedal device for driving the front wheel to rotate; A clutch mechanism that prevents the pedal device from rotating with the front wheel when the device is not in use; the pedal device includes a pedal c3 and a crankshaft c4;

In the collapsible baby carriage described in this embodiment, the pedal device includes a pedal c3 and a crankshaft c4; the crankshaft c4 is the S-shaped crankshaft c4 often used on the wheels of this type of baby carriage; there are two pedals c3, which are respectively located on Both ends of the crankshaft c4; the clutch device includes a drive case c5 connected to the rim c1 and arranged coaxially and a set of expansion blocks c8, a circle of peripheral c6 is provided on one side of the drive case c5, and the inner wall of the peripheral c6 is provided with Concave c61, one end of each expansion block c8 is pivotally connected with the drive housing c5, one outer surface of the expansion block c8 is provided with a convex rib c81 matching with the depression c61, and an elastic The connectors are connected together; the inner surface of each expansion block c8 is provided with a clutch chamber c82; the crankshaft c4 is provided with a horizontal block c7 for enabling the rib c81 to be clamped into the recess c61; the horizontal block c7 is arranged in the clutch chamber In c82, the other ends of the two expansion blocks c8 are provided with convex points c83 for making the expansion block c8 follow the horizontal block c7 to rotate. The principle is as follows: when the child steps on the pedal c3 of the pedal device, the horizontal block c7 rotates in the clutch chamber c82 along with the crankshaft c4, and the convex rib c81 can be locked into the concave cavity c61 due to the rotation of the horizontal block c7 ; When continuing to rotate to a certain angle, the horizontal block c7 and the convex point c83 will abut, and at this moment, when the child continues to step on the pedal c3 to move forward, the front wheel will also move along with the movement of the pedal c3; When the child does not step on the pedal c3, when the parent pushes the stroller behind, since the pedal c3 has no forward turning force, the expansion block c8 will shrink the opening due to the connection of the elastic connector, so that the rib c81 is separated from the pit c61; The rotation of the wheel will not drive the drive housing c5, so that the crankshaft c4 and the pedal c3 no longer follow the rotation of the front wheel, which protects the immature little feet of children.

In the foldable baby carriage described in this embodiment, the cross block c7 includes a fixed part c71 fixed to the crankshaft c4 and resisting arms c72 extending from both sides of the fixed part c71; the fixed part c71 is used for The crankshaft c4 is fixedly connected, and the resisting arm c72 is used to abut against the convex point c83; the structure designed in this way is convenient for installation and production, and the structure is more reasonable.

In the foldable baby carriage described in this embodiment, the resisting arm c72 is provided with a hollow groove, and also includes a fixed piece c73 fixedly connected to the crankshaft c4, and the fixed piece c73 is clamped in the hollow groove; to make this structure, you can first The fixing piece c73 is welded to the crankshaft c4, and then directly inserted into the hollow groove to complete the setting of the horizontal block c7. This method has a reasonable structure, is convenient for installation, and is conducive to mass production and improvement of yield.

In the foldable baby carriage described in this embodiment, the free end of the resisting arm c72 is wedge-shaped, and the clutch chamber c82 is also wedge-shaped; the free end of the wedge-shaped resisting arm c72 can make the resisting arm c72 rotate with the expansion block c8 The contact between them is smoother, which improves children's riding experience. The clutch cavity c82 is a wedge-shaped cavity matched with the wedge of the resisting arm c72 so that when the expansion block c8 shrinks, the clutch cavity c82 can effectively make way for the resisting arm c72, so that the expansion block c8 can shrink more thoroughly.

In the foldable stroller described in this embodiment, there are multiple pits c61 and ribs c81; multiple ribs c81 and pits c61 cooperate with each other, so that when the expansion block c8 drives the periphery c6 to rotate, the frictional force Larger and prevents slipping.

In the foldable baby carriage described in this embodiment, the other end of each expansion block c8 is provided with a hook c84, and the elastic connecting piece connects the two hooks c84 together. This structure can effectively prevent the elastic connecting piece from detaching from the expansion block c8 and prevent the clutch from failing.

In the foldable baby carriage described in this embodiment, the elastic connecting member is a tension spring. The extension spring has the advantages of low cost, simple structure and good effect. A tire c2 is provided on the surface of the rim c1 to enhance the passability and comfort of the front wheel.

As shown in Fig. 14 to Fig. 15, in the foldable baby carriage according to this embodiment, the rear end shaft of the body f1 is connected with a steering rod m4 for the parent to control the steering of the front wheel of the baby carriage. One end of the steering rod m4 is radially provided with a first steering ear m41; the front wheel frame m2 is radially provided with a second steering ear m42, and a steering connecting rod m43 is connected between the first steering ear m41 and the second steering ear m42 ; When the steering rod m4 rotates, the front wheel frame m2 is driven to rotate through the steering connecting rod m43. The principle is as follows: when the steering rod m4 rotates, the first steering ear m41 also rotates accordingly, and the first steering ear m41 drives the second steering ear m42 to rotate through the steering connecting rod m43, thereby driving the front wheel frame m2 to rotate, thereby controlling the front The rotation of the wheel. In addition, parents can also push the stroller through the steering rod m4.

In the foldable stroller described in this embodiment, the other end of the steering rod m4 is provided with a telescopic rod m5, which can enhance the practicality. Specifically, the telescopic rod m5 can provide parents with different heights with suitable Height, in addition, the space utilization rate of the stroller can also be improved by stretching. The free end of the telescopic rod m5 is pivotally connected with a control handle m6, and the control handle m6 is pivotally connected to the telescopic rod m5. It can be lifted or put down, which is convenient for parents Use and grasp. In the baby carriage suitable for children of multiple ages described in the embodiment, a handle is provided at the other end of the steering rod m4, which is convenient for carrying and folding the baby carriage.

In the collapsible stroller described in this embodiment, one side of the second back seat k2 is also provided with a headrest k5, which plays a role in supporting the head, and can protect the cervical vertebrae and the head of young children, preventing young children from suffer bodily harm.

In the foldable baby car described in this embodiment, the rear wheel device includes a rear wheel f4, a rear wheel support arm f2 for connecting the rear wheel f4 with a rotating shaft, and one end is pivotally connected to the body f1 and the other end is connected to the rear wheel support. The fixing frame f5 of the arm f2; the body f1 is provided with a frame groove for accommodating the fixing frame f5 when the fixing frame f5 is folded. When folding, it is only necessary to bend the fixed frame f5, fold the fixed frame f5 into the frame groove f11, and the rear wheel device will be folded to a certain position to complete the folding; through the structure of the fixed frame f5, a The body of the foldable rear wheel mechanism is convenient and practical, and the housing groove can effectively avoid the position of the rear wheel support arm f2, which is scientific and reasonable, and has high practicability.

In the foldable baby carriage described in this embodiment, the rear end of the body f1 is provided with a support rod f12; when in use, the free end of the support rod f12 abuts against the fixing frame f5. The support rod f12 can firstly strengthen the fixing effect between the rear wheel support arm f2 and the vehicle body f1 during use, and secondly can prevent the rear wheel support arm f2 from being extended excessively, causing damage to the rear wheel support arm f2.

As shown in Figure 16 to Figure 18, the foldable children's vehicle described in this embodiment is provided with a horizontal axis rod f13 on the support rod f12, and also includes a rear wheel switch mechanism, and the rear wheel switch mechanism includes a fixed frame The block f6 of the switch that f5 is slidably connected also includes being located between the switch block f6 and the fixed frame f5, and is used to make the switch reset the block f6 elastically; one end of the switch block f6 is provided with a The rod groove f61 of the horizontal axis rod f13 is clamped. When in use, pull the switch block f6 back, and the rod groove f61 will be separated from the horizontal shaft rod f13. At this time, the folding action of the rear wheel support arm f2 can be carried out. On the contrary, when unfolding, pull the switch block f6 back , when unfolding in place, unclamp the switch handle block f6, and the switch handle block f6 moves forward due to the action of the block reset member until the cross-axis rod f13 can be located in the rod groove f61 to complete the locking action.

In the foldable baby carriage described in this embodiment, the bottom of the body f1 is further provided with a positioning hole f14, and the front end of the switch handle block f6 is provided with a locking protrusion f62 matching the positioning hole f14. When folding the rear wheel support arm f2, the protrusion of the switch block f6 can be stuck in the card pit, preventing the rear wheel support arm f2 from shaking randomly, and then preventing the damage of the rear wheel support arm f2.

In the foldable baby carriage described in this embodiment, the rear wheel support arm f2 includes two sub-support arms that can pivotally connect a rear wheel f4 respectively, and a detachable loading basket f3 is arranged between the two sub-support arms ; which increases the utility of the present invention.

In the foldable children's vehicle body described in this embodiment, a cushion is provided on the top surface of the body f1 of the vehicle body; the cushion can improve the comfort of the child and enhance the experience of the present invention.

The above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present invention are included in the protection scope of the patent application of the present invention.

Claims (8)

1. A collapsible children's car, comprising a body (f1), characterized in that: the body (f1) is provided with a foldable rear wheel device behind it, and a front wheel frame ( m2); The front wheel is connected to the lower rotating shaft of the front wheel frame (m2); the first foldable back chair (k1) is also pivotally connected to the vehicle body (f1); it also includes a foldable handlebar, which includes There is a handlebar body (b1) and a bushing (b2) under the handlebar body (b1), and a frame tube is arranged above the front wheel frame (m2), and the frame tube and the bushing (b2) are pivotally connected to each other together; the frame tube is provided with a fixed shaft, and the free end of the casing (b2) leans against the fixed shaft; the lower part of the body (f1) is also provided with a foldable pedal mechanism; The pedal mechanism includes a folding rod (f7); one end of the folding rod (f7) is pivotally connected to the body (f1), and the other end is pivotally connected to a group of foldable pedal blocks (f71); The car body (f1) is provided with lugs (f74), and the folding rod (f7) is pivotally connected to the lugs (f74); it also includes a folding mechanism for making the pedal mechanism folded to different angles and then fixed ; The folding mechanism includes at least one ear card slot (f75) on the card ear (f74), a positioning pull rod (f72) and one end of the positioning pull rod (f72) is set in the ear card slot (f75) elastic parts; The frame tube is provided with an adjustment slot (m21), the free end of the sleeve (b2) is fixed with a pivot shaft, and the sleeve (b2) is pivoted to the frame tube through the pivot shaft and the adjustment slot (m21). connected together; the bushing (b2) is provided with a switch post hole, the casing (b2) is provided with a shrapnel, one side of the shrapnel is provided with a post, and the switch post hole is set with the post; The clamping shell for clamping the clamping column and the key switch for pushing the clamping column back to the sleeve; It also includes a second back chair (k2) detachably connected to the first back chair (k1), the second back chair (k2) includes a second back body; the first back chair (k1) includes a first Back body; The switch mechanism includes a plug-in board (k21) arranged on the lower side of the second back; the plug-in board (k21) is provided with a fixing hole (k22), and the first back body is provided with a socket that cooperates with the plug-in board (k21) ; The switch mechanism also includes a fixed plug (k15); one side of the fixed plug (k15) is an inclined plane and the side is provided with a stopper (k19) that matches the fixed hole (k22); The switch mechanism also includes a first reset elastic member (k16) arranged between the other side of the fixed plug (k15) and the first back body, used to reset and rebound the fixed plug (k15); The switch mechanism also includes a switch board (k11) disposed in the first back body, a switch device (k12) is provided on one side of the switch board (k11), and a switch for installing the switch device (k12) is provided on the first back body hole (k18); the other side of the switch plate (k11) is provided with a slide plate (k13), and the free end of the slide plate (k13) is provided with a slope for matching with one side of the fixed plug (k15); The switch mechanism also includes a second reset elastic member arranged between the switch plate (k11) and the first back body for resetting the switch plate (k11); the switch plate (k11) is provided with a guide hole (k14 ), the first back body is provided with a guide post (k17) matching with the guide hole (k14). 2. A foldable children's car according to claim 1, characterized in that: there are two lugs (f74), and the folding bar (f7) includes two sub-bars, and the sub-bars are provided with straight To the hole (f73), one end of the positioning pull rod (f72) is set in the said straight hole (f73). 3. A foldable baby carriage according to claim 1, characterized in that: it also includes a guardrail device arranged on the second back seat (k2) for preventing children from falling; said guardrail device includes Two fixed arms (k4) respectively arranged on the second back chair (k2), the free ends of the two fixed arms (k4) are respectively pivotally connected with movable arms (k41); the free ends of the movable arms (k41) are provided with A clamping device for connecting the free ends of two movable arms (k41). 4. A foldable children's car according to claim 1, characterized in that: the front wheel includes a rim (c1) and a pedal device for driving the front wheel to rotate; A clutch mechanism that prevents the pedal device from rotating with the front wheel when the pedal device is not in use; the pedal device includes a pedal (c3) and a crankshaft (c4); The clutch device includes a drive housing (c5) connected to the rim (c1) and arranged coaxially and a set of expansion blocks (c8). One side of the drive housing (c5) is provided with a circle of periphery (c6), and the periphery (c6) There is a pit (c61) on the inner wall, one end of each expansion block (c8) is pivotally connected with the drive housing (c5), and one outer surface of the expansion block (c8) is provided with a protrusion that matches the pit (c61) Rib (c81), the other ends of the two expansion blocks (c8) are connected together by an elastic connector; Each expansion block (c8) is provided with a clutch chamber (c82) on the inner surface; the crankshaft (c4) is provided with a horizontal block (c7) for enabling the rib (c81) to be clamped into the pit (c61); The block (c7) is set in the clutch chamber (c82), and the other ends of the two expansion blocks (c8) are provided with protrusions (c83) for making the expansion block (c8) follow the horizontal block (c7) to rotate; The cross block (c7) includes a fixed portion (c71) fixed to the crankshaft (c4) and resisting arms (c72) extending from both sides of the fixed portion (c71); The resisting arm (c72) is provided with a hollow groove, and also includes a fixed piece (c73) fixedly connected with the crankshaft (c4), and the fixed piece (c73) is clamped in the hollow groove; The free end of the resisting arm (c72) is wedge-shaped, and the clutch cavity (c82) is also wedge-shaped; the pits (c61) and ribs (c81) are multiple; each expansion block (c8) The other ends are provided with hooks (c84), and the elastic connecting piece connects the two hooks (c84). 5. A foldable baby stroller according to claim 1, characterized in that: the rear shaft of the vehicle body (f1) is connected with a steering rod (m4) for the parents to control the steering of the front wheels of the stroller; the steering One end of the rod (m4) is radially provided with a first steering lug (m41); the front wheel frame (m2) is radially equipped with a second steering lug (m42), the first steering lug (m41) and the second steering lug (m42) A steering connecting rod (m43) is connected between them; when the steering rod (m4) turns, the front wheel frame (m2) is driven to rotate through the steering connecting rod (m43); the other end of the steering rod (m4) is provided with a telescopic The telescopic rod (m5), the free end of the telescopic rod (m5) is pivotally connected with a control handle (m6). 6. A foldable baby carriage according to claim 1, characterized in that: the rear wheel device includes a rear wheel (f4), a rear wheel support arm (f2) for connecting the rear wheel (f4) to the rotating shaft And one end is pivotally connected to the vehicle body (f1) and the other end is connected to the fixed frame (f5) of the rear wheel support arm (f2); the vehicle body (f1) is provided with a fixed frame (f5) to accommodate the fixed frame ( The frame groove of f5); the rear end of the vehicle body (f1) is provided with a support rod (f12); The mechanism includes a switch block (f6) slidingly connected with the fixed frame (f5), and also includes a switch block (f6) and the fixed frame (f5), which is used to reset the switch block (f6). The elastic block reset part; one end of the switch block (f6) is provided with a rod groove (f61) for clamping the horizontal shaft rod (f13). 7. A foldable baby carriage according to claim 6, characterized in that: the bottom of the vehicle body (f1) is provided with a positioning hole (f14), and the front end of the switch handle block (f6) is provided with a The locking protrusion (f62) matched with the positioning card hole (f14). 8. A foldable children's carriage according to claim 6, characterized in that: the rear wheel support arm (f2) includes two sub-support arms that can pivotally connect a rear wheel (f4) respectively, and the two sub-support arms Between the arms there is a removable load basket (f3).