CN107891906B

CN107891906B - Multifunctional safety baby carriage

Info

Publication number: CN107891906B
Application number: CN201711189082.9A
Authority: CN
Inventors: 刘健; 程国标; 陈永奇
Original assignee: Zhijiang College of ZJUT
Current assignee: Zhijiang College of ZJUT
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2023-07-07
Anticipated expiration: 2037-11-24
Also published as: CN107891906A

Abstract

The invention provides a multifunctional safety baby carriage, which belongs to the technical field of baby carriages and comprises a carriage body, an automatic braking mechanism connected with wheels, a shaking table mechanism arranged on the carriage body and a climbing obstacle mechanism arranged at the bottom of the carriage body, and is characterized in that the automatic braking mechanism comprises a driving component, a transmission component, a driven component and a guiding component for guiding the driving component, the transmission component and the driven component which are sequentially connected; the multifunctional safety baby carriage is simple, environment-friendly, low in cost, safe and reliable due to the automatic braking device, and has the functions of a shaking table and climbing obstacles.

Description

Multifunctional safety baby carriage

Technical Field

The invention relates to a multifunctional safety baby carriage, and belongs to the technical field of baby carriages.

Background

Most of the existing strollers are provided with a foot brake mechanism at four wheels, and parents need to lock the wheels one by one in a pedal mode after stopping the stroller. Some parents are inattentive, and the infant in the car is injured due to the uncontrolled control of the baby car because the car is not braked immediately after stopping. In real life, parents of newborn babies always encounter a larger or smaller slope when the parents bring the babies to go out, and because the change range of the topography is large and the road section is multiple in landslide, the traditional baby carriage only has a manual brake assembly for fixing the carriage, and in case similar human negligence occurs, the baby carriage slides down at the high position of the landslide, so that accidents can occur.

In recent two years, a small number of strollers labeled "intelligent braking" have appeared on the market. These strollers rely on sensors and electrical control to achieve the effect of automatic braking. However, most consumers are hardly accepted from the aspects of safety, price and the like. In addition, the function of the baby carriage on the market is single, and the baby carriage can pass through the obstacle such as the stair by lifting the baby carriage, so that inconvenience is brought.

In view of this, the present inventors have conducted special studies to develop a multifunctional safety stroller, which is produced by the present invention.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a simple, environment-friendly, low-cost and safer and more reliable multifunctional safety baby carriage with an automatic braking device, and in order to achieve the purposes, the technical scheme adopted by the invention is as follows:

the utility model provides a many functional safety perambulator, includes car body, the automatic brake mechanism that links to each other with the wheel, locates shaking table mechanism on the car body and install in the barrier mechanism climbs of car body bottom, automatic brake mechanism is including consecutive drive assembly, driven assembly to and be used for direction drive assembly, drive assembly and driven assembly's direction subassembly.

Preferably, the vehicle body includes a first frame for fixing the automatic braking mechanism, and a second frame for connecting the wheel to the obstacle climbing mechanism.

Preferably, the driving component comprises an armrest and a push rod which are connected in sequence, a rack fixedly connected to the push rod; the transmission assembly comprises a gear meshed with the rack; the driven component comprises a brake disc connected with the wheels, a brake rod arranged on the brake disc, and a brake cable with one end fixed on the gear and the other end fixed on the brake rod; the guide assembly comprises a push rod guide rod arranged at the end part of the push rod, a guide rod fixer and a spring sleeved on the push rod guide rod, at least one brake wire guide bracket and at least two brake rod guide brackets which are sequentially arranged on the first frame, and a return spring sleeved on the brake rod, wherein the brake wire is fixed on the first frame through the brake wire guide bracket, and the brake rod is fixed on the first frame through the brake rod guide bracket; the cradle mechanism comprises a crib and a shaking assembly arranged on the crib.

Preferably, the rocking assembly comprises a connecting rod and a triangle connected to the crib through bearings.

Preferably, the rocking assembly further comprises a fixing bolt for connecting the crib, the connecting rod and the triangle.

Preferably, the crib is arranged on the vehicle body through a triangle and a reinforcing rod.

Preferably, the crib is movably connected with the lower end of the connecting rod through a bearing; the upper end of the connecting rod is movably connected with the right angle position of the triangle through a bearing; the non-right-angle large angle part of the triangular plate is fixedly connected with the first vehicle frame, the small angle part of the triangular plate is movably connected with the upper end of the reinforcing rod, and the lower end of the reinforcing rod is fixedly connected with the first vehicle frame.

Preferably, the multi-kinetic energy stroller includes two automatic braking mechanisms symmetrically disposed on a pair of wheels.

Preferably, the vehicle body further includes a push rod supporting frame connecting the two automatic brake mechanisms, a first reinforcing rod fixing the climbing obstacle mechanism and the first frame, and a second reinforcing rod fixing the push rod and the first frame.

Preferably, the obstacle-climbing mechanism employs a triangular wheel.

The invention can realize the following technical effects:

(1) The current situation of fixed braking of the traditional baby carriage is changed, the reasonable mechanical design is adopted, the characteristic of deformation recovery of the spring is skillfully utilized, the automatic braking and stable effect is achieved, and unexpected situations caused by sliding or forgetting to brake can be effectively prevented in daily life;

(2) The smart connection of the triangle, the connecting rod and the reinforcing rod in the cradle mechanism ensures that the cradle is firmly supported and the cradle is easy to shake;

(3) The cradle has the functions of adopting a four-bar mechanism and using a bearing at a hinge, so that the cradle is slightly swayed and has proper frequency, thereby not only providing fun for amusing infants, but also providing stable damping function when the cradle is used for pushing, having entertainment and embodying humanization;

(4) The addition of the triangular wheels enables the baby carriage to cope with more road surface conditions, is convenient for traveling and has better adaptability.

(5) The structure is simple and reasonable, the operation is convenient, and the manufacture and the maintenance are convenient; meets the market demand, has lower manufacturing cost and is beneficial to market popularization.

Drawings

FIG. 1 is a schematic view of the overall structure of a safety stroller according to the present embodiment;

FIG. 2 is an exploded view of the structure of the safety stroller of the present embodiment;

FIG. 3 is a schematic diagram of an automatic braking structure of a safety stroller in accordance with the present embodiment;

FIG. 4 is a partial enlarged view of the safety pushchair of the present embodiment at the automatic brake A;

FIG. 5 is an enlarged view of a portion of the safety stroller at an automatic brake B;

FIG. 6 is a schematic view of a rocking mechanism of a multi-functional safety stroller;

fig. 7 is a schematic view of a multi-functional safety stroller obstacle-surmounting mechanism according to the present embodiment.

Labeling and describing:

the brake device comprises an armrest 1, a push rod 2, a push rod supporting frame 3, a fixed sleeve 4, a spring 5, a rack 6, a gear 7, a return spring 8, a brake lever 9, a brake disc 10, a rear wheel 11, a rear wheel shaft fixed sleeve 12, a brake lever guide bracket 13, a first reinforcing rod 14, a triangle wheel 15, a first frame 16, a brake cable 17, a bearing 18, a connecting rod 19, a triangle 20, a crib 21, a fixed bolt 22, a guide rod fixer 23, a brake cable guide bracket 24, a hinge connecting block 25, a roller 26, a triangle wheel supporting frame 27, a bearing 28, a reinforcing rod 29, a push rod guide rod 30, a second reinforcing rod 31, a second frame 32 and a connecting block 33.

Detailed Description

In order to make the technical means and the technical effects achieved by the technical means of the invention clearer and more perfect disclosure, an embodiment is provided, and the following detailed description is given with reference to the accompanying drawings:

the multifunctional safety baby carriage comprises a carriage body, an automatic braking mechanism connected with wheels, a shaking table mechanism arranged on the carriage body and a climbing obstacle mechanism arranged at the bottom of the carriage body. The body includes a first frame 16 for securing the automatic braking mechanism and a second frame for connecting the wheel to the obstacle-climbing mechanism. The vehicle body further includes a push rod supporting frame 3 connecting the two automatic braking mechanisms, a first reinforcing rod 14 fixing the climbing barrier mechanism and the first frame 16, and a second reinforcing rod 31 fixing the push rod 2 and the first frame 16.

As shown in fig. 1 and 2, fig. 1 is a schematic overall structure of the multifunctional safety stroller of the present embodiment, and fig. 2 is an exploded structure of the multifunctional safety stroller of the present embodiment, where the stroller body includes a first frame 16, a second frame 32, a first reinforcing rod 14, and a second reinforcing rod 31. The second frame 32 is mechanically coupled to the first frame 16 by a connecting block 33 without relative movement; the first reinforcing bar 14 is mechanically connected to the first frame 16 by a hinged connection 25 without relative movement; the second reinforcement bar 31 is mechanically coupled to the first reinforcement bar 14 and the first frame 16 by rivets without relative movement. Namely, the first frame 16, the second frame 32, the first reinforcing rod 14, and the second reinforcing rod 31 are mechanically connected to form a unitary structure.

The multi-functional stroller of this embodiment includes two automatic braking mechanisms symmetrically disposed on a pair of wheels. The automatic braking mechanism comprises a driving assembly, a transmission assembly and a driven assembly which are sequentially connected, and a guiding assembly used for guiding the driving assembly, the transmission assembly and the driven assembly. The driving assembly comprises a handrail 1 and a push rod 2 which are sequentially connected, and a rack 6 fixedly connected to the push rod 2; the transmission assembly comprises a gear 7 meshed with the rack 6; the driven component comprises a brake disc 10 connected with the wheels, a brake rod 9 arranged on the brake disc 10, and a brake cable 17 with one end fixed on the gear 7 and the other end fixed on the brake rod 9; the guide assembly comprises a push rod guide rod 30 arranged at the end part of the push rod 2, a guide rod fixer 23 and a spring 5 sleeved on the push rod guide rod 30, at least one brake wire guide bracket 24 and at least two brake rod guide brackets 13 which are sequentially arranged on the first frame 16, and a return spring 8 sleeved on the brake rod 9, wherein the brake wire 17 is fixed on the first frame 16 through the brake wire guide bracket 24, and the brake rod 9 is fixed on the first frame 16 through the brake wire guide bracket 13.

As shown in fig. 3, 4 and 5, fig. 3 is a schematic diagram of an automatic braking structure of the multifunctional safety baby carriage of the present embodiment, fig. 4 is a partially enlarged view of an automatic braking a of the multifunctional safety baby carriage of the present embodiment, and fig. 5 is a partially enlarged view of an automatic braking B of the multifunctional safety baby carriage of the present embodiment, wherein the automatic braking mechanism comprises a handrail 1, a push rod 2, a push rod supporting frame 3, a fixing sleeve 4, a spring 5, a rack 6, a gear 7, a return spring 8, a brake lever 9, a brake disc 10, a brake lever guiding bracket 13, a brake cable 17, a frame and guiding lever fixer 23, a brake cable guiding bracket 24 and a push rod guiding lever 30. The handrail 1 and the push rod supporting frame 3 are connected with the push rod 2 into a fixed whole through a set screw; the push rod 2 and the rack 6 are connected into a fixed whole through the fixed sleeve 4; the push rod guide rod 30 and the guide rod fixer 23 are connected with the first frame 16 into a fixed whole; the push rod 2 is a hollow tube, is sleeved outside the push rod guide rod 30, and the spring 5 is sleeved on the outer ring of the push rod guide rod 30 and is arranged between the fixed sleeve 4 and the frame and guide rod fixer 23; the gear 7 is arranged on the first frame 16 and can rotate freely; the rack 6 is meshed with the gear 7; the brake wire 17 passes through wire hole sites on the two brake wire guide brackets 24, one end of the brake wire is fixed on one tooth of the gear 7 through a set screw, and the other end of the brake wire is knotted and fixed with the upper end of the brake rod 9; the brake lever guide bracket 13 and the brake cable guide bracket 24 are provided with grooves and are fixed with the first frame 16 into a whole through bolts; the reset spring 8 is sleeved on the outer ring of the brake lever 9 between the upper brake lever guide bracket 13 and the lower brake lever guide bracket 13, the upper end of the reset spring 8 is fixed with the upper brake lever guide bracket 13, and the lower end is fixed with the end, close to the tooth fork, of the brake lever 9; the brake disc 10 and the rear wheel 11 of the baby carriage are fixed together through bolts; the rear wheel 11 of the baby carriage is mounted on the first frame 16 through a rear wheel axle fixing sleeve 12 and can rotate freely.

A certain gap is reserved between the push rod 2 and the guide rod 30, so that the push rod 2 can slide along the push rod guide rod 30; the push rod 2 is provided with a slot at the connection place of the hinge connection block 25 and the push rod guide rod 30, so that the sliding of the push rod 2 on the push rod guide rod 30 is not affected; a gap is reserved between the spring 5 and the push rod guide rod 30, and the spring 5 can be compressed and stretched freely on the push rod guide rod 30; the teeth of the gear 7 have a certain thickness so that the brake cable 17 can be wound on the tooth top circle of the gear 7; the brake cable guide bracket 24 is provided with a circular opening, the diameter of the circular opening is slightly larger than that of the brake cable 17, and the brake cable 17 can freely slide in the circular hole of the brake cable guide bracket 24; the square holes are reserved on the brake rod guide support 13, a certain gap is reserved between the square holes and the rod part of the brake rod 9, and the brake rod 9 moves linearly through the holes of the upper brake rod guide support 13 and the lower brake rod guide support 13.

The working principle of the automatic braking mechanism is as follows: the brake lever 9 is in a braking state by the self tension of the return spring 8 in a natural state. When a user pushes the baby carriage, two hands naturally generate a downward oblique force to push the handrail 1 (when a person pulls the baby carriage backwards, the handrail 1 is pulled), the rack 6 fixed with the push rod 2 is driven to slide downwards (or upwards) along the push rod guide rod 30, the rack 6 drives the gear 7 to rotate (clockwise or anticlockwise), the gear 7 rotates, one end of the brake wire 17 is lifted upwards around the top circle of the gear 6 (the brake wire can be wound up no matter whether the gear rotates anticlockwise or rotates clockwise), the other end of the brake wire 17 lifts the brake rod 9 upwards for a certain distance, the fork of the brake rod 9 is separated from the brake disc 10, and the rear wheel 11 can rotate automatically. When a person pushes the stroller, the fork of the brake lever 9 is always separated from the brake disc 10 due to the action of the component force, and the stroller freely rotates. When both hands of a person leave the handrail 1, the deformation of the spring 5 and the return spring 8 is recovered, so that the push rod 2, the rack 6, the gear 7, the brake cable 17, the brake lever 9 and the like are reset, the tooth fork of the brake lever 9 is meshed with the brake disc 10 again, the rear wheel 11 stops rotating, and the automatic braking effect of the baby carriage is realized.

The cradle mechanism of the multifunctional safety baby carriage of the embodiment comprises a baby crib 21 and a shaking assembly arranged on the baby crib 21: the rocking assembly comprises a connecting rod 19 and a triangle 20 which are connected to a crib 21 through a bearing 18, and a fixing bolt 22 which is connected to the crib 21, the connecting rod 19 and the triangle 20, wherein the crib 21 is arranged on the vehicle body through the triangle 20 and a reinforcing rod 29.

As shown in fig. 6, fig. 6 is a schematic diagram of a rocking mechanism of a multi-functional safety baby carriage, in which a baby carriage 21 is movably connected with the lower end of a connecting rod 19 through a bearing 18; the upper end of the connecting rod 19 is movably connected with the right angle position of the triangle 20 through a bearing 18; the large angle part of the triangle 20 which is not right angle is fixedly connected with the first frame 16, the small angle part of the triangle 20 is movably connected with the upper end of the reinforcing rod 29, and the lower end of the reinforcing rod 29 is fixedly connected with the first frame 16.

The cradle mechanism consists of a bearing 18, a connecting rod 19, a triangle 20, a crib 21, a fixing bolt 22 and a reinforcing rod 29. The crib 21 is hinged with the lower end of the connecting rod 19, and a bearing 18 is used at the hinge; the upper end of the connecting rod 19 is hinged with the large right-angle side of the triangle 20, and a bearing 18 is used at the hinge; the non-right large angle of the triangle 20 is fixedly connected with the first frame 16 through bolts; the small angle of the triangle 20 which is not right angle is connected with the upper end of the reinforcing rod 29 by a hinge; the lower end of the reinforcing rod 29 is fixedly connected with the first frame 16 by bolts.

Triangle 20 is a non-isosceles right triangle; the hypotenuse of the triangle 20, the reinforcing rod 29 and the first frame 16 form a fixed triangle, so that the triangle 20 stably and reliably supports the crib 21; the connecting rod 19 forms a parallelogram with the lower edge of the crib 21 and the large right-angle edge of the triangular plate 20, so that the crib 21 can be rocked; holes for inserting the fixing bolts 22 are formed in the corresponding positions of the small right-angle sides of the connecting rod 19 and the triangular plate 20; the fixing bolt 22 can be inserted into the holes formed by the connecting rod 19 and the triangle 20, so that the parallelogram mechanism is broken, and the crib 21 cannot swing.

Working principle of the cradle: if the crib 21 does not need to swing, the crib 21 is fixed by the fixing bolt 22. If the crib 21 needs to swing, the fixing bolt 22 is pulled out, so that the crib 21 can swing in parallel under the action of pushing force, and the crib 21 can stably slide back to the original state again under the influence of gravity, thereby realizing the function of the cradle. In normal use of the stroller, the fixing bolt 22 can be pulled out, and the vibration of the stroller 21 caused by the frame is indirectly reduced due to the swinging effect of the parallelogram, so that the damping effect can be achieved.

The multifunctional baby carriage of the embodiment comprises two climbing obstacle mechanisms arranged below the body carriage, wherein the climbing obstacle mechanisms adopt triangular wheels 15, and the triangular wheels 15 consist of three rollers 26, a triangular wheel supporting frame 27 and bearings 28. The roller 26 and the triangle wheel support 27 are assembled together by a bearing 28 through a bolt connection. The three rollers 26 are free to rotate or rotate as a unit about the triangle wheel support 27. The triangle wheel support 27 is in turn coupled to the first frame 16 via a shaft.

Climbing over the obstacle working principle: when the stroller is pushed on a flat ground, the contact of two of the casters 26 with the ground is unchanged, the normal running is performed, and the contact characteristics of the casters with the ground improve the stability on a slightly bumpy road (e.g., a paved road). If the road block or the normal step is encountered, the forefront roller 26 is stopped against the obstacle, and the triangular wheel 15 rolls as a whole with the obstacle as a rotation center, and the upper roller 26 rolls down and then passes over the obstacle. The three rollers 26 are angled 120 degrees apart to easily clear most obstacles.

The foregoing is a further detailed description of the provided technical solution in connection with the preferred embodiments of the present invention, and it should not be construed that the specific implementation of the present invention is limited to the above description, and it should be understood that several simple deductions or substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and all the embodiments should be considered as falling within the scope of the present invention.

Claims

1. The multifunctional safety baby carriage comprises a carriage body, an automatic braking mechanism connected with wheels, a shaking table mechanism arranged on the carriage body and a climbing obstacle mechanism arranged at the bottom of the carriage body, and is characterized in that the automatic braking mechanism comprises a driving assembly, a transmission assembly, a driven assembly and a guiding assembly for guiding the driving assembly, the transmission assembly and the driven assembly, which are sequentially connected;

the driving assembly comprises a handrail (1) and a push rod (2) which are connected in sequence, and a rack (6) fixedly connected to the push rod (2);

the transmission assembly comprises a gear (7) meshed with the rack (6);

the driven component comprises a brake disc (10) connected with the wheels, a brake rod (9) arranged on the brake disc (10), and a brake cable (17) with one end fixed on the gear (7) and the other end fixed on the brake rod (9);

the guide assembly comprises a push rod guide rod (30) arranged at the end part of the push rod (2), a guide rod fixer (23) and a spring (5) sleeved on the push rod guide rod (30), at least one brake wire guide bracket (24) and at least two brake wire guide brackets (13) which are sequentially arranged on the first frame (16), and a return spring (8) sleeved on the brake rod (9), wherein the brake wire (17) is fixed on the first frame (16) through the brake wire guide bracket (24), and the brake rod (9) is fixed on the first frame (16) through the brake wire guide bracket (13);

the cradle mechanism comprises a baby crib (21) and a cradle assembly arranged on the baby crib (21);

the shaking assembly comprises a connecting rod (19) and a triangle (20) which are connected to the crib (21) through a bearing (18), and a fixing bolt (22) which is connected with the crib (21), the connecting rod (19) and the triangle (20);

the crib (21) is arranged on the vehicle body through a triangular plate (20) and a reinforcing rod;

the crib (21) is movably connected with the lower end of the connecting rod (19) through a bearing (18); the upper end of the connecting rod (19) is movably connected with the right angle position of the triangle (20) through a bearing (18); the large angle part of the triangle (20) is fixedly connected with the first frame (16), the small angle part of the triangle (20) is movably connected with the upper end of the reinforcing rod (29), and the lower end of the reinforcing rod (29) is fixedly connected with the first frame (16);

the multi-kinetic energy stroller includes two automatic braking mechanisms symmetrically disposed on a pair of wheels.

2. The multi-functional safety stroller of claim 1, wherein: the vehicle body includes a first frame (16) for securing an automatic braking mechanism, and a second frame (32) for connecting a wheel climbing barrier mechanism.

3. The multi-functional safety stroller of claim 1, wherein: the vehicle body further comprises a push rod supporting frame (3) connected with the two automatic braking mechanisms, a first reinforcing rod (14) for fixing the climbing obstacle mechanism and the first frame (16), and a second reinforcing rod (31) for fixing the push rod (2) and the first frame (16).

4. The multi-functional safety stroller of claim 1, wherein: the obstacle climbing mechanism adopts a triangular wheel (15).