CN111874079A

CN111874079A - Folding baby stroller

Info

Publication number: CN111874079A
Application number: CN202010674376.6A
Authority: CN
Inventors: 梁永佳
Original assignee: Individual
Current assignee: Shangrao Dasen Medical Technology Center Sole Proprietorship
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-11-03
Anticipated expiration: 2040-07-14
Also published as: CN111874079B

Abstract

A folding stroller, comprising: the back support, the bottom of the back support is fitted with the rear wheel, the top of the back support is fitted with the seat of the handrail, the front handrail is hinged with front end of the cushion; the middle part of the rear support is also hinged with a reset seat and a positioning seat, the front end of the positioning seat is hinged with the front support, the rear end of the positioning seat is hinged with the push rod, the bottom of the front support is provided with a front wheel, the front end of the reset seat is hinged with the front support through a pull arm, the rear end of the reset seat is provided with a rear support rod, the top end of the rear support rod is provided with a rear hinged seat, a positioning sleeve is hinged in the rear hinged seat and sleeved on the surface of the push rod, and the positioning sleeve slides along the push rod; and a locking mechanism is arranged in the positioning sleeve and locks the relative position between the positioning sleeve and the push rod. The invention has the beneficial effects that: adopt stereoplasm to support cushion and back in the present case, consequently compare with the flexible stifle of sitting of tradition, it is taken more comfortable unique beta structure, can realize that a key is folding, promotes folding convenience.

Description

Folding baby stroller

Technical Field

The invention relates to a baby carriage, in particular to a folding baby carriage.

Background

The handcart for children is a necessary tool in families with babies, is suitable for infants with small ages, arranges the infants in the handcart when going out, and the handcart is used for walking, so that parents are prevented from fatigue caused by holding the babies for a long time, and the independent activities of the infants are more convenient and comfortable. In order to be convenient to carry, the baby stroller is also designed to be a folding baby stroller and can be folded when needed. The folded stroller has greatly reduced volume, can be carried in a vehicle when traveling, and can be used after being taken out and stretched to be opened after reaching a preset place.

With the expansion of the travel range of people, people fly to and from all over the world quite often, and the demand of bringing folding children carts to trains and airplanes is increasing day by day. Therefore, the folding mode of the foldable stroller and the size after folding provide further requirements, the foldable stroller is more convenient to fold, and the size after folding is small enough to be carried on an airplane. Meanwhile, in the case of satisfying these requirements, comfort in the use state cannot be sacrificed, and it is necessary to have a sufficient height and width. Therefore, the research on the foldable stroller has been focused on people and is a great direction for the development of the stroller.

However, most of the pushchairs on the market today often have the following problems, for example: the volume is large after folding, and the carrying is not easy; or the folding mechanism is complex and is not easy to fold; or sacrifice comfort in riding, insufficient spaciousness of the seat, insufficient height of the seat, etc., and further improvement thereof is necessary.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a folding baby stroller which has a simple structure, is convenient to use, has small volume after being folded and is comfortable and safe for children to take.

The object of the invention is achieved in the following way: a folding children's shallow which characterized in that: it includes:

the back support, the bottom of the back support is fitted with the rear wheel, the top of the back support is fitted with the arm rest seat, the front handrail is mounted in the arm rest seat articularly, the front handrail is articularly connected with front end of the cushion;

the middle part of the rear support is also hinged with a reset seat and a positioning seat, the reset seat is positioned below the positioning seat, the front end of the positioning seat is hinged with the front support, the rear end of the positioning seat is hinged with a push rod, the bottom of the front support is provided with a front wheel, the front end of the reset seat is hinged with the front support through a pull arm, the rear end of the reset seat is provided with a rear supporting rod, the top end of the rear supporting rod is provided with a rear hinged seat, a positioning sleeve is hinged in the rear hinged seat and sleeved on the surface of the push rod, and the positioning sleeve slides along the push rod;

the utility model discloses a back-adjusting seat, including the location cover, the location cover in the location cover install locking mechanism, locking mechanism locks the relative position between location cover and the push rod, the location cover on still articulate and install the back and adjust the seat, the other one end of back regulation seat is articulated with the back and is installed, back lower extreme and cushion articulated installation to be provided with the sliding seat bottom the back, one side of sliding seat towards the push rod is provided with the constant head tank, the constant head tank buckle is at sliding support on the push rod.

The locking mechanism comprises a lock pin which is arranged in the positioning sleeve in a sliding mode and a lock hole which is arranged on the push rod, the lock pin always moves towards the lock hole under the pushing of the spring and is inserted into the lock hole, and the relative position between the positioning sleeve and the push rod is locked.

The locking mechanism further comprises a guide sleeve arranged in the lock hole, the guide sleeve is fixed on the push rod through the base, a driving column is arranged in the guide sleeve through a guide groove, the lock pin is inserted into the lock hole through the guide sleeve, and the front end of the lock pin is pressed against the driving column.

The top of the positioning sleeve is also provided with a locking pin in a sliding mode, and the bottom of the locking pin is pressed on a limiting table at the top of the locking pin.

The locking mechanism further comprises a handle rod sleeved in the push rod, elastic beads are arranged on the cylindrical surface of the handle rod and selectively buckled in a plurality of gear holes on the push rod, the relative distance between the push rod and the handle rod is adjusted, a push block is further arranged on the cylindrical surface of the handle rod and is in an inclined shape with a low lower part and a high upper part, and the push block pushes the driving column to move outwards to force the lock pin to be separated from the lock hole.

The handle bar's afterbody install the unblock button, the unblock button passes through the actuating lever and is connected with the interlock seat of setting in the handle bar bottom, the drive seat is installed to interlock seat internal sliding formula, the slant is provided with first drive groove on the interlock seat, is provided with the second drive groove in the drive seat, through guide arm sliding type connection between first drive groove and the second drive groove, the elasticity pearl pass the handle bar and be connected with the drive seat.

The reset seat is provided with a reset torsion spring, two supporting feet of the torsion spring are respectively propped against the reset seat and the rear bracket, and the reset torsion spring drives the reset seat to swing towards the direction of the rear wheel all the time.

The rear adjusting seat comprises a lower sleeve with one end hinged with the positioning sleeve and an upper sleeve with one end hinged with the backrest, the lower sleeve is inserted into the upper sleeve, and a limiting device is arranged between the two sleeves.

The limiting device is provided with a locking pendulum buckle on the cylindrical surface of the lower sleeve, the locking pendulum buckle is hinged to the side wall of the upper sleeve when swinging through a swing arm, and the locking pendulum buckle is buckled into a locking groove arranged on the cylindrical surface of the lower sleeve to be fixed in the locking groove, so that the relative position between the upper sleeve and the lower sleeve is locked.

The invention has the beneficial effects that: 1. simple structure, low production cost and improved market competitiveness. 2. The hard supporting seat cushion and the hard supporting backrest are adopted in the scheme, so that the seat cushion is more comfortable to sit compared with the traditional flexible seat base. 3. Unique beta structure can realize a key and fold, promotes folding convenience. 4. After the cart is folded, the rear wheel and the headrest of the cart can be supported on the ground to stand, so that the cart is convenient for a user to store.

Drawings

Fig. 1, 2 and 3 are schematic views of the stroller in a use state.

FIG. 4 is an enlarged view of the structure of FIG. 2A according to the present invention.

Fig. 5 is an assembly view of the rear adjustment seat structure of the present invention.

Fig. 6 is an assembly view of the locking mechanism structure of the present invention.

Fig. 7 is a structural sectional view of the locking mechanism of the present invention.

Figure 8 is an assembly view of a seat and back rest of the present invention.

FIG. 9 is an assembly view of the handle bar and push rod of the present invention.

Fig. 10 is an assembly view of the unlocking button, the driving seat and the linking seat.

Fig. 11 and 12 are schematic views illustrating the stroller in the folded state according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A folding children's shallow which characterized in that: it includes:

the back support 1, the bottom of the back support 1 is fitted with the rear wheel 2, the top of the back support 1 is fitted with the armrest seat 3, the front armrest 31 is articularly mounted in the armrest seat 3, the front armrest 31 is articularly connected with front end of the cushion 4;

the middle part of the rear support 1 is also hinged with a reset seat 5 and a positioning seat 6, the reset seat 5 is positioned below the positioning seat 6, the front end of the positioning seat 6 is hinged with a front support 7, the rear end of the positioning seat 6 is hinged with a push rod 8, the bottom of the front support 7 is provided with a front wheel 71, the front end of the reset seat 5 is hinged with the front support 7 through a pull arm 51, the rear end of the reset seat 5 is provided with a rear support rod 52, the top end of the rear support rod 52 is provided with a rear hinged seat 53, a positioning sleeve 9 is hinged in the rear hinged seat 53, and the positioning sleeve 9 is sleeved on the surface of the push rod 8 and slides along the push rod 8;

the utility model discloses a safety seat cushion, including position sleeve 9, back 41, locating sleeve 9 in install locking mechanical system, locking mechanical system locks the relative position between position sleeve 9 and the push rod 8, position sleeve 9 on still articulated install back regulation seat 10, the articulated installation of other one end and back 41 of back regulation seat 10, back 41 lower extreme and cushion 4 articulated installation to be provided with sliding seat 42 in back 41 bottom, sliding seat 42 is provided with constant head tank 43 towards one side of push rod 8, constant head tank 43 buckle sliding support on push rod 8.

The locking mechanism comprises a lock pin 91 arranged in the positioning sleeve 9 in a sliding mode and a lock hole 92 arranged on the push rod 8, the lock pin 91 always moves towards the lock hole 92 and is inserted into the lock hole 92 under the pushing of a spring 93, and the relative position between the positioning sleeve 9 and the push rod 8 is locked.

The locking mechanism further comprises a guide sleeve 94 arranged in the lock hole 92, the guide sleeve 94 is fixed on the push rod 8 through a base, a driving column 96 is arranged in the guide sleeve 94 through a guide groove 95, the lock pin 91 is inserted into the lock hole 92 through the guide sleeve 94, and the front end of the lock pin is pressed against the driving column 96.

The top of the positioning sleeve 9 is also provided with a locking pin 97 in a sliding manner, and the bottom of the locking pin 97 is pressed on a limiting table 98 at the top of the locking pin 91.

The locking mechanism further comprises a handle rod 81 sleeved in the push rod 8, an elastic bead 82 is arranged on the cylindrical surface of the handle rod 81, the elastic bead 82 is selectively buckled in a plurality of blocking holes 83 on the push rod 8 to adjust the relative distance between the push rod 8 and the handle rod 81, a push block 84 is further arranged on the cylindrical surface of the handle rod 81, the push block 84 is inclined in a low-down and high-up mode, and the push block 84 pushes the driving column 96 to move outwards to force the lock pin 91 to be separated from the lock hole 92.

The tail of handle pole 81 install unblock button 85, unblock button 85 passes through actuating lever 86 and is connected with the interlock seat 87 that sets up in the handle pole bottom, interlock seat 87 internal sliding type installs drive seat 88, the slant is provided with first drive groove 89 on the interlock seat 87, is provided with second drive groove 891 in the drive seat 88, passes through guide arm 892 sliding type connection between first drive groove 89 and the second drive groove 891, elastic bead 82 pass the handle pole and be connected with drive seat 88.

The reset seat 5 is provided with a reset torsion spring 54, two supporting feet of the torsion spring are respectively abutted against the reset seat 5 and the rear bracket 1, and the reset torsion spring 54 drives the reset seat 5 to swing towards the direction of the rear wheel 2 all the time.

The rear adjusting seat 10 comprises a lower sleeve 11 with one end hinged with the positioning sleeve 9 and an upper sleeve 12 with one end hinged with the backrest 41, the lower sleeve 11 is inserted in the upper sleeve 12, and a limiting device is arranged between the two sleeves.

The limiting device is provided with a locking swing buckle 13 on the cylindrical surface of the lower sleeve 11, the locking swing buckle 13 is hinged to the side wall of the upper sleeve 12 when swinging by a swing arm 15, and the locking swing buckle 13 is buckled into a locking groove 14 on the cylindrical surface of the lower sleeve 11 to be fixed so as to lock the relative position between the upper sleeve 11 and the lower sleeve 11.

The working principle is as follows: as shown in fig. 1 and 2, when the stroller is in a use state, the lock pin in the positioning sleeve passes through the positioning sleeve and is inserted into the lock hole of the push rod, so that the relative position between the positioning sleeve and the push rod is locked, at this time, a triangular support is formed among the push rod 8, the rear support 52 and the rear support, the front support and the pull arm 51 form the triangular support, so that a supporting function for a seat cushion and a backrest is achieved, and the stroller is in a normal pushing use state.

As shown in fig. 9 and 10, when the stroller is folded, the user pulls the latch pin 97 upward, and the bottom of the latch pin 97 is separated from the stopper 98 at the top of the lock pin 91, thereby releasing the stopper in which the latch pin is moved backward. Then, an unlocking button 85 at the tail of the handle bar 81 is pressed, the unlocking button 85 pushes the linkage seat 87 to move downwards through the driving rod 86, and a first driving groove on the linkage seat and an inner guide rod 892 thereof are utilized to press a second driving groove on the driving seat. The interaction of the first driving groove and the second driving groove is utilized to force the driving seat to descend downwards, the elastic bead 82 is forced to be separated from the position blocking hole 83 on the push rod 8, a user can press the handle rod 81 downwards, when the handle rod 81 is pushed down to the right position, the push block 84 positioned on the cylindrical surface of the handle rod 81 pushes the driving column 96 to move outwards, when the driving column moves outwards, the lock pin 91 is forced to be separated from the lock hole 92, the locking between the positioning sleeve 9 and the push rod 8 is released, the positioning sleeve can slide on the push rod, and at the moment, the reset torsion spring 54 on the positioning seat 5 drives the reset seat 5 to deflect towards the rear wheel 2 all the time, and the self weight of the baby carriage generates folding power. Then the support rod 52 and the push rod 8 drive the backrest to tilt towards the direction of the rear wheels, the pull arm 51 pulls the front support to tilt towards the direction of the rear wheels, and finally the folding of the baby carriage is realized. Wherein, because the setting of reset torsion spring 54 for in case the user removes the back to the locking of position sleeve by pressing down the handle pole, the reset torsion spring can drive this shallow automatic folding with the help of bassinet dead weight, great promotion folding convenience.

As shown in fig. 4 and 5, when the backrest is folded, the locking swing buckle 13 is pulled inward to force the locking swing buckle to separate from the locking groove 14 on the cylindrical surface of the lower sleeve 11, at this time, the upper sleeve 12 loses the supporting force, and under the action of the gravity of the backrest, the upper sleeve 12 moves towards the sleeve 11, so that the whole backrest swings towards the direction of the rear wheel, thereby further reducing the volume of the folded baby carriage. Similarly, in the using process, the function of adjusting the angle of the backrest can be achieved by selecting the butting or separating of the locking swing buckle 13 and the locking groove 14, so that the requirement of a user on the angle of the backrest can be met.

When the user needs to reuse the cart, the user only needs to reversely operate to lift the handle rod upwards, the dead weight of the cart is utilized to force the positioning sleeve to reset, the lock pin 91 is inserted into the lock hole 92 again to be locked, and the locking swing buckle 13 and the locking groove 14 are buckled again. Compared with the prior art, the hard supporting cushion and the hard supporting backrest are adopted in the stroller in the scheme, so that the stroller is more comfortable to sit compared with the traditional flexible seat. Meanwhile, due to the unique folding structure, one-key folding can be realized, and the folding convenience is improved. In addition, after the cart is folded, the rear wheels and the headrest can be supported on the ground to stand, so that the cart is convenient for a user to store, and can be widely popularized and used.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A folding children's shallow which characterized in that: it includes:

the back support (1), the bottom of the back support (1) is equipped with the back wheel (2), the top of the back support (1) is equipped with the armrest seat (3), the front armrest (31) is installed in the armrest seat (3) in a hinged manner, the front armrest (31) is hinged with the front end of the cushion (4);

the middle part of the rear support (1) is also hinged with a reset seat (5) and a positioning seat (6), the reset seat (5) is positioned below the positioning seat (6), the front end of the positioning seat (6) is hinged with the front support (7), the rear end of the positioning seat (6) is hinged with the push rod (8), the bottom of the front support (7) is provided with a front wheel (71), the front end of the reset seat (5) is hinged with the front support (7) through a pull arm (51), the rear end of the reset seat (5) is provided with a rear support rod (52), the top end of the rear support rod (52) is provided with a rear hinged seat (53), a positioning sleeve (9) is hinged in the rear hinged seat (53), and the positioning sleeve (9) is sleeved on the surface of the push rod (8) and slides along the push rod (8);

locating sleeve (9) in install locking mechanical system, locking mechanical system locks the relative position between locating sleeve (9) and push rod (8), locating sleeve (9) on still articulated install after-adjustment seat (10), the articulated installation of other one end and back (41) of after-adjustment seat (10), back (41) lower extreme and cushion (4) articulated installation to be provided with sliding seat (42) bottom back (41), one side of sliding seat (42) orientation push rod (8) is provided with constant head tank (43), constant head tank (43) buckle sliding support on push rod (8).

2. A folding stroller according to claim 1, wherein: the locking mechanism comprises a lock pin (91) which is arranged in the positioning sleeve (9) in a sliding mode and a lock hole (92) which is formed in the push rod (8), the lock pin (91) always moves towards the lock hole (92) under the pushing of a spring (93) and is inserted into the lock hole (92), and the relative position between the positioning sleeve (9) and the push rod (8) is locked.

3. A folding stroller according to claim 2, wherein: the locking mechanism further comprises a guide sleeve (94) arranged in the lock hole (92), the guide sleeve (94) is fixed on the push rod (8) through a base, a driving column (96) is arranged in the guide sleeve (94) through a guide groove (95), the lock pin (91) is inserted into the lock hole (92) through the guide sleeve (94), and the front end of the lock pin is pressed against the driving column (96).

4. A folding stroller according to claim 2, wherein: the top of the positioning sleeve (9) is also provided with a locking pin (97) in a sliding manner, and the bottom of the locking pin (97) is pressed on a limiting table (98) at the top of the locking pin (91).

5. A folding stroller according to claim 2, wherein: the locking mechanism further comprises a handle rod (81) sleeved in the push rod (8), elastic beads (82) are arranged on the cylindrical surface of the handle rod (81), the elastic beads (82) are selectively buckled in a plurality of gear holes (83) on the push rod (8) to adjust the relative distance between the push rod (8) and the handle rod (81), a push block (84) is further arranged on the cylindrical surface of the handle rod (81), the push block (84) is in a lower-upper inclined shape, and the push block (84) pushes the driving column (96) to move outwards to force the lock pin (91) to be separated from the lock hole (92).

6. A folding stroller according to claim 5, wherein: the tail of handle pole (81) install unblock button (85), unblock button (85) are connected with interlock seat (87) of setting in the handle pole bottom through actuating lever (86), drive seat (88) are installed to interlock seat (87) internal sliding type, the slant is provided with first drive groove (89) on interlock seat (87), be provided with second drive groove (891) in drive seat (88), pass through guide arm (892) sliding type connection between first drive groove (89) and second drive groove (891), elasticity pearl (82) pass the handle pole and be connected with drive seat (88).

7. A folding stroller according to claim 1, wherein: the reset seat (5) is provided with a reset torsion spring (54), two supporting legs of the torsion spring are respectively abutted against the reset seat (5) and the rear bracket (1), and the reset torsion spring (54) drives the reset seat (5) to swing towards the direction of the rear wheel (2) all the time.

8. A folding stroller according to claim 1, wherein: the rear adjusting seat (10) comprises a lower sleeve (11) with one end hinged with the positioning sleeve (9) and an upper sleeve (12) with one end hinged with the backrest (41), the lower sleeve (11) is inserted into the upper sleeve (12), and a limiting device is arranged between the two sleeves.

9. A folding stroller according to claim 8, wherein: the limiting device is provided with a locking pendulum buckle (13) on the cylindrical surface of the lower sleeve (11), the locking pendulum buckle (13) is hinged to the side wall of the upper sleeve (12) when swinging through a swing arm (15), the locking pendulum buckle (13) is buckled into a locking groove (14) formed in the cylindrical surface of the lower sleeve (11) and is fixed in the locking groove, and the relative position between the upper sleeve (11) and the lower sleeve (11) is locked.