CN204196977U - A kind of Foldable baby stroller - Google Patents

Abstract

The utility model relates to a kind of Foldable baby stroller, comprise stroller frame, front component, wheel assembly, first lockout mechanism, release mechanism, described stroller frame comprises push rod, front frame, after poppet, connecting rod, stretcher, second locking piece, described front frame is connected with described after poppet phase pivot, the bottom of described push rod is connected with described after poppet top phase pivot, one end of described connecting rod is connected on described push rod rotationally, the other end of described connecting rod is connected to the top of described front frame rotationally, described first lockout mechanism is located at arbitrary switching place of described four-bar linkage, the first hauling rope is connected with between described release mechanism and described first lockout mechanism, described release mechanism drives described second locking piece to slide to described stretcher and described push rod linkage of unlocking by driving described first hauling rope to described first lockout mechanism unblock simultaneously.Utilize the linkage of unlocking of release mechanism can realize the fast folding of doll carriage like this, easy to operate.

Description

A foldable baby stroller

technical field

The utility model belongs to the field of baby carriages, relates to a baby stroller, in particular to a foldable baby stroller.

Background technique

A baby stroller is a baby's "transportation tool", a small car that needs someone to help push or pull it. According to the baby's growth and usage, baby strollers can be divided into many types, such as: twin baby strollers, high-view baby strollers, sunshade strollers, etc.; mainly based on the load capacity, the general test standard is nine to fifteen kilograms. With the continuous development of society, people are more and more likely to travel or play with their babies, so a portable folding baby stroller that can be folded quickly has emerged as the times require. Due to the different number of rods, the connection relationship between the rods, and the connection position of the existing baby stroller frames, the folding principles and folding methods are different.

The Chinese invention patent with the application number of 201310258378.7 discloses a folding locking mechanism and a stroller. The folding locking mechanism includes a first bar and a second bar that rotate relatively, and a position locking mechanism arranged between the first bar and the second bar , the position locking mechanism includes a fixed sleeve, a sliding sleeve and a return device, the fixed sleeve is set on the end of the first rod; the sliding sleeve is slidably arranged on the second rod and can slide between the locked position and the unlocked position; the sliding sleeve is It has a first locking part, and the fixing sleeve is provided with a second locking part. The invention integrates the locking device and the folding mechanism, which can prevent the stroller from turning from the unfolded position to the folded position, thereby effectively preventing the child from being injured by folding the stroller due to improper use of the stroller. However, this will inevitably affect the safety of the stroller. Foldability increases the complexity of the folding operation of the stroller, making it inconvenient to fold the stroller.

Contents of the invention

The purpose of the utility model is to provide a foldable baby stroller that can be carried and folded in order to overcome the deficiencies of the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is: a foldable baby stroller, including a stroller frame with an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, and a The first locking mechanism and unlocking mechanism for locking the frame in the unfolded state, characterized in that the cart frame includes a push rod, a front bracket with the front wheel assembly on the lower part, and a rear wheel assembly on the lower part The rear bracket, the connecting rod, the pedal connected to the lower part of the push rod in rotation, the second locking piece for locking the pedal and the push rod, the front bracket is connected to the rear bracket pivotally connected, the lower part of the push rod is pivotally connected to the upper part of the rear bracket, one end of the connecting rod is rotatably connected to the push rod, and the other end of the connecting rod is rotatably connected to the On the top of the front bracket, a four-bar linkage mechanism is formed between the rear bracket, the front bracket, the push rod and the connecting rod, and the first locking mechanism is located at any rotation of the four-bar linkage mechanism. At the joint, a first traction rope is connected between the unlocking mechanism and the first locking mechanism, and the unlocking mechanism is connected with the second locking member. The unlocking mechanism drives the first traction rope to When the first locking mechanism is unlocked, the second locking member is driven to unlock the pedal and the push rod in a linked manner.

Preferably, the first locking mechanism is located at the connection between the connecting rod and the front bracket.

Preferably, the pedal is locked in the same plane as the push rod by the second locking member.

Preferably, the connection point between the push rod and the rear support is higher than the connection point between the front support and the connecting rod and lower than the connection point between the connecting rod and the push rod.

Preferably, the first locking mechanism includes a first connecting piece and a locking hook fixed on the upper part of the front bracket, a locking pin is arranged in the first connecting piece, and the locking hook is used to communicate with the locking pin. One end of the first traction rope is connected with the lock hook, and the first locking mechanism also includes a second connecting piece fixed at the other end of the connecting rod, and the second connecting piece is connected to the locking hook through a spring. The locking hook is connected and pivotally connected with the first connecting member.

Further, the lower parts of the left and right sides of the push rod are provided with push rod connectors, and the upper parts of the left and right sides of the pedal are provided with pedal connectors, and the push rod connector and the pedal connector rotate connection, a horizontal tube is provided at the junction of the push rod connection head and the pedal joint, and the unlocking mechanism is arranged on the horizontal tube.

Further, the unlocking mechanism is connected to the second locking piece through a second traction rope, and the second locking piece is slidably arranged at the junction of the push rod joint and the pedal joint. activity wheel.

Further, the unlocking mechanism also includes a traction rope base arranged in the horizontal tube, an unlocking knob fixed on the horizontal tube, the other end of the first traction rope is connected to the unlocking knob, One end of the second traction rope is wound on the traction rope base, and when the unlocking handle is turned, the horizontal tube is driven to rotate, so that the horizontal tube drives the traction rope bases at both ends to move along the horizontal tube. Move closer or farther away, and at the same time, the first traction rope drives the first locking mechanism to move.

Further, the unlocking mechanism further includes a folding traction belt connecting the unlocking handle and the connecting rod.

Further, the pedal has two states of folding and locking, when the pedal is in the folded state, the unlocking handle is located above the pedal; when the pedal is in the locked state , the unlocking knob is located under the pedal.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art: the utility model foldable baby stroller, by setting the second locking piece between the pedal and the push rod, is used to lock the pedal It is locked and connected with the push rod to facilitate the placement of the baby's feet; and the first locking mechanism can lock the stroller frame in the unfolded state, so that the unlocking mechanism can unlock the first locking mechanism by driving the first traction rope, and at the same time can Drive the second locking part to slide to unlock the pedal and the push rod in conjunction, so that the baby stroller can be quickly folded and the operation is convenient.

Description of drawings

Accompanying drawing 1 is the side view of the utility model folding stroller;

Accompanying drawing 2 is the structural representation of the utility model folding stroller;

Accompanying drawing 3 is the folded state diagram of the utility model folding stroller;

Accompanying drawing 4 is the enlarged view of the locking mechanism of the folding stroller of the present invention;

Accompanying drawing 5 is the partial structure schematic diagram of folding stroller of the utility model;

Accompanying drawing 6 is the partial enlarged view of accompanying drawing 5;

Among them, 1. cart frame; 11. push rod; 111. push rod connector; 12. front bracket; 13. rear bracket; 14. connecting rod; 15. pedal; 151. pedal connector; 16 , the second locking piece; 2, the front wheel assembly; 3, the rear wheel assembly; 4, the first locking mechanism; 41, the first connector; 42, the lock pin; 43, the lock hook; 44, the spring; 45, the second Connector; 5. Unlocking mechanism; 51. Traction rope base; 52. Unlocking handle; 53. Folding traction belt; 6. Horizontal tube; 7. First traction rope; 8. Second traction rope.

Detailed ways

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail:

The following definitions of directions are all defined according to the directions observed by children sitting and standing on the structure of the stroller when the foldable baby stroller is in the unfolded state.

The foldable baby stroller as shown in Figures 1 to 3 mainly includes a stroller frame 1, a front wheel assembly 2, a rear wheel assembly 3, and a first locking mechanism for locking the stroller frame 1 in an unfolded state 4.

Wherein, the stroller frame 1 has two states of an unfolded state and a folded state, and mainly includes components such as a push rod 11, a front bracket 12, a rear bracket 13, a connecting rod 14, a pedal 15, and a second locking member 16.

The main function of the push rod 11 is to push the baby stroller to walk when the stroller frame 1 is in the unfolded state. Folding rods connected by connectors.

The upper part of the rear bracket 13 is pivotally connected with the lower part of the push rod 11, so that the push rod 11 can turn backwards and move closer to the rear bracket 13; In this embodiment, the rear bracket 13 is pivotally connected to the push rod connecting head 111 , so as to increase the connection strength between the rear bracket 13 and the push rod 11 .

The lower part of the front bracket 12 is provided with the front wheel assembly 2 , and the upper part is pivotally connected with the rear bracket 13 . However, in the present embodiment, the distance between the pivot connection of the front frame 12 and the rear frame 13 is smaller than the distance from the upper end of the front frame 12 (but not at the upper end of the front frame 12), because The upper end of the front bracket 12 needs to fix the first locking mechanism 4 .

One end of connecting rod 14 is rotatably connected on the push rod 11, and the other end is rotatably connected on the top of front bracket 12, so that rear bracket 13, front bracket 12, push rod 11 and connecting rod 14 form a four-bar linkage, so that the folding The folding and opening operations of the baby stroller are very simple and convenient.

Pedal 15 is rotatably connected to the bottom of push rod 11, and when stroller vehicle frame 1 was in unfolded state, pedal 15 was locked on the bottom of push rod 11 by second locking member 16, so that pedal 15 and push rod The rods 11 are in the same plane so that a child sitting on the stroller frame 1 can place their feet on the footrest 15 like this. In this embodiment, in order to increase the connection strength between the pedal 15 and the push rod 11 and coordinate with the setting of other parts of the foldable stroller, the bottom of the push rod 11 is provided with a push rod connector 111, and the upper part of the pedal 15 Pedal joint 151 is provided, and the push rod 11 and the pedal 15 are rotationally connected together by utilizing the pivotal connection of the push rod connector 111 and the pedal joint 151, and the push rod joint 111 and the pedal joint The junction of 151 is equipped with cross pipe 6 and forms accommodation space; On a straight line; while the pedal joint 151 and the push rod connector 111 form a snap-fit structure that matches the second locking piece 16 at the accommodation space, when the second locking piece 16 is connected to the pedal joint 151 and the push rod When the heads 111 cooperate with each other, the pedal 15 is locked on the lower part of the push rod 11 .

The first locking mechanism 4 can be arranged at any junction of the four-bar linkage mechanism formed among the rear bracket 13 , the front bracket 12 , the push rod 11 and the connecting rod 14 . When the first locking mechanism 4 is locked, the above-mentioned four-bar linkage mechanism is in a stable state, so that the cart frame 1 is in a stable unfolded state. At this time, as shown in FIG. The connection point is higher than the connection point between the front bracket 12 and the connecting rod 14 and lower than the connection point between the connecting rod 14 and the push rod 11 . In this embodiment, the first locking mechanism 4 is installed at the junction of the front bracket 12 and the connecting rod 14, and its structure is shown in FIG. The spring 44 and the second connecting piece 45 fixed on the other end (ie the lower end) of the connecting rod 14 . The first connecting part 41 is provided with a locking pin 42 matched with the locking hook 43; the second connecting part 45 is connected to the locking hook 43 through a spring 44 on the one hand, and is pivotally connected to the first connecting part 41 on the other hand; When the cart frame 1 was in the unfolded state, the locking hook 43 and the locking pin 42 were locked by the force of the spring 44 to form a stable triangle. At this time, one end of the locking hook 43 was pulled to make the other end of the locking hook 43 and the lock. The pin 42 disengages and presses the spring 44, so that the first connecting member 41 and the second connecting member 45 are relatively rotated, that is, the relative movement of the front bracket 12 and the connecting rod 14 realizes the folding of the stroller.

The unlocking mechanism 5 is arranged on the horizontal pipe 6, the first traction rope 7 is connected between the unlocking mechanism 5 and the first locking mechanism 4, and is connected with the second locking member 16 through the second traction rope 8, when the unlocking mechanism 5 is unlocked At the same time, it can drive the first traction rope 7 to move so as to realize the unlocking of the first locking mechanism 4, and simultaneously drive the second locking member 16 to slide, so that the foot pedal 15 and the push rod 11 are linked to unlock. As shown in FIG. 2 , FIG. 5 and FIG. 6 , the unlocking mechanism 5 mainly includes a traction rope base 51 , an unlocking handle 52 and a folding traction belt 53 . The specific connection mode of the traction rope base 51 and the cross pipe 6 and the setting method of the traction rope base 51 at the junction of the push rod connector 111 and the pedal joint 151 can be set according to actual needs, as long as the cross pipe can be rotated At 6 o'clock, it can drive the traction rope base 51 at its two ends to move closer or away from the movement. In this embodiment, one end of the traction rope base 51 is inserted from one end of the horizontal tube 6, and the pins arranged at an angle are used to carry it out. connected, and the other end is set in the accommodating space formed by the connection between the push rod connector 111 and the pedal joint 151, the unlocking knob 52 is fixed at the center of the horizontal tube 6, when the unlocking knob 52 is turned, the horizontal tube 51 synchronous rotation. Therefore, when the unlocking knob 52 is pulled upwards and rotated, the horizontal tube 6 rotates together with the unlocking knob 52, and the traction rope bases 51 located at both ends of the horizontal tube 6 rotate synchronously and move toward each other under the action of the pin. One end of the first traction rope 7 is connected with the locking hook 43, and the other end is connected with the unlocking knob 52, that is, the first traction rope 7 is connected between the locking hook 43 and the unlocking knob 52, and the folding traction belt 53 is connected with the unlocking knob 52. and between the connecting rod 14, when the unlocking handle 52 is rotated, the first traction rope 7 connected thereto can be driven, and the first traction rope 7 pulls the lock hook 43 connected thereto to make it disengage from the lock pin 42, continue Rotating the unlocking knob 52 drives the foldable traction belt 53 connected thereto, and the foldable traction belt 53 pulls the connecting rod 14 to rotate, so that the rear bracket 13 and the push rod 11 in the four-bar linkage mechanism are relatively close together. The second traction rope 8 is connected with the second locking member 16 (i.e. the movable wheel) in the accommodating space at one end, and the other end is wound on the traction rope base 51, so when the above-mentioned traction rope base 51 approaches, it Pulling the second traction rope 8 pulls the second locking member 16 away from the pedal joint 151 , realizing the unlocking of the pedal 15 and the push rod 11 . It can be seen from this that the rotating unlocking handle 52 can not only unlock the first locking mechanism 4 by driving the first traction rope 7 to move, so that the rear bracket 13 and the push rod 11 are relatively close together; but also can pull the second traction rope 8 to pull The second locking member 16 unlocks the pedal 15 and the push rod 11, that is, the baby stroller can be folded into the shape shown in Figure 3 only by operating the unlocking handle 52, which is very convenient to operate; When the vehicle frame 1 is in the unfolded state, the unlocking knob 52 is located below the pedal 15 ; when the first locking mechanism 4 or the second locking mechanism 16 is unlocked, the unlocking knob 52 is located above the pedal 15 .

The structure of the folding baby stroller of the present invention has been described above, and its working principle is briefly described below:

As shown in Figure 1, the folding baby stroller, after the locking hook 43 and the locking pin 42 are locked by the force of the spring 44, a stable triangle is formed; and the second locking member 16 is connected with the pedal connector 151 and the push rod The head 111 cooperates so that the pedal 15 is locked with the push rod 11 in the same plane. When folding, the unlocking handle 52 is first rotated. On the one hand, the horizontal tube 6 rotates synchronously with the unlocking handle 52, so that the traction rope bases 51 at its two ends move toward each other, and then the second locking member 16 is pulled by the second traction rope 8. It is separated from the pedal connector 151 and accommodated in the push rod connector 111 to realize the unlocking of the pedal 15 and the push rod 11, so that the pedal 15 is in a freely movable state; at the same time, on the other hand The unlocking handle 52 pulls the lock hook 43 through the first traction rope 7 to disengage from the lock pin 42, and continues to rotate the unlocking handle 52 to pull the connecting rod 14 through the folded traction belt 53, and the lock hook 43 is pulled and squeezes the spring 44 Furthermore, an active force is applied to the second connecting member 45 , and their joint action makes the push rod 11 move closer to the rear support 13 to realize the folding of the stroller.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. Equivalent changes or modifications made according to the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims (10)

1. a Foldable baby stroller, comprise the stroller frame with deployed condition and folded state, front component, wheel assembly, for described stroller frame being locked in the first lockout mechanism of deployed condition, release mechanism, it is characterized in that: described stroller frame comprises push rod, bottom is provided with the front frame of described front component, bottom is provided with the after poppet of described wheel assembly, connecting rod, be connected to the stretcher of described push rod bottom rotationally, for locking the second locking piece of described stretcher and described push rod, described front frame is connected with described after poppet phase pivot, the bottom of described push rod is connected with described after poppet top phase pivot, one end of described connecting rod is connected on described push rod rotationally, the other end of described connecting rod is connected to the top of described front frame rotationally, described after poppet, described front frame, four-bar linkage is formed between described push rod and described connecting rod, described first lockout mechanism is located at arbitrary switching place of described four-bar linkage, the first hauling rope is connected with between described release mechanism and described first lockout mechanism, described release mechanism is connected with described second locking piece, described release mechanism drives described second locking piece to described stretcher and described push rod linkage of unlocking while driving described first hauling rope to unlock described first lockout mechanism.

2. Foldable baby stroller according to claim 1, is characterized in that: described first lockout mechanism is positioned at the junction of described connecting rod and described front frame.

3. Foldable baby stroller according to claim 1, is characterized in that: described stretcher is locked it in by described second locking piece and is in same plane with described push rod.

4. Foldable baby stroller according to claim 1, is characterized in that: the point of connection of described push rod and described after poppet higher than described front frame and described connecting rod point of connection and lower than the point of connection of described connecting rod and described push rod.

5. Foldable baby stroller according to claim 1, it is characterized in that: described first lockout mechanism comprises the first attaching parts, the latch hook that are fixed on described fore poppet overhead, lock pin is provided with in described first attaching parts, described latch hook is used for fastening with described lock pin, one end of described first hauling rope is connected with described latch hook, described first lockout mechanism also comprises the second attaching parts being fixed on the described connecting rod other end, and described second attaching parts to be connected with described latch hook by spring and to be connected with described first attaching parts phase pivot.

6. according to described Foldable baby stroller arbitrary in claim 1 to 5, it is characterized in that: the bottom, the left and right sides of described push rod is provided with push rod connector, the top, the left and right sides of described stretcher is provided with stretcher joint, described push rod connector and described stretcher joint are rotationally connected, described push rod connector and switching place of described stretcher joint are provided with transverse tube, and described release mechanism is arranged on described transverse tube.

7. Foldable baby stroller according to claim 6, it is characterized in that: described release mechanism is connected with described second locking piece by the second hauling rope, described second locking piece is the castor being arranged at described push rod connector and switching place of described stretcher joint slidably.

8. Foldable baby stroller according to claim 7, it is characterized in that: described release mechanism also comprises the hauling rope pedestal be arranged in transverse tube, the unblock swing handle be fixed on described transverse tube, the other end of described first hauling rope is connected with described unblock swing handle, described second hauling rope one end is wound on described hauling rope pedestal, when rotating described unblock swing handle, described transverse tube is driven to rotate, make transverse tube drive the described hauling rope pedestal at its two ends along transverse tube near or away from moving, simultaneously described first hauling rope drives described first lockout mechanism motion.

9. Foldable baby stroller according to claim 8, is characterized in that: described release mechanism also comprises the folding traction belt connecting described unblock swing handle and described connecting rod.

10. Foldable baby stroller according to claim 9, is characterized in that: described stretcher has folding and locking two states, and when described stretcher is in folded state, described unblock swing handle is positioned at the top of described stretcher; When described stretcher is in the lock state, described unblock swing handle is positioned at the below of described stretcher.