CN222022744U

CN222022744U - A child stroller

Info

Publication number: CN222022744U
Application number: CN202420454360.8U
Authority: CN
Inventors: 平宙
Original assignee: Zhongshan Zetai Household Products Co ltd
Current assignee: Zhongshan Zetai Household Products Co ltd
Priority date: 2024-03-08
Filing date: 2024-03-08
Publication date: 2024-11-19
Anticipated expiration: 2034-03-08

Abstract

The utility model discloses a child cart, which comprises a front support frame (1) and a rear support frame (2) which is mutually intersected with the front support frame (1) and is rotatably connected with the front support frame (1) at an intersection position, wherein the lower end of the front support frame (1) is connected with a front wheel (3), the lower end of the rear support frame (2) is connected with a rear wheel (4), a sliding piece (5) which can slide relative to the front support frame (1) is arranged on the front support frame (1), a transmission rod (6) hinged with the sliding piece (5) and the rear support frame (2) is further arranged between the sliding piece and the rear support frame (2), a push rod assembly (7) which can slide or rotate relative to the front support frame (1) is also connected with a flexible seat pocket (8) which is used for taking and can be folded is arranged between the push rod assembly (7) and the upper end of the rear support frame (2). The folding device is simple in structure, convenient to fold and operate and low in cost.

Description

Child cart

[ Field of technology ]

The utility model relates to a child stroller.

[ Background Art ]

Child strollers are a common product in the course of child growth. The existing child cart can be unfolded or folded generally, and is convenient to carry or store when folded.

Chinese patent publication No. (CN 217022632U) discloses a stroller, which includes a front wheel support assembly 11, a rear wheel support assembly 12, a push rod assembly 13, a transmission mechanism 3 and a seat assembly having a backrest, and the transmission mechanism has a plurality of link mechanisms, and uses a duplex gear and a plurality of teeth to transmit, so that the stroller has a complex structure and high cost.

The present utility model has been made in view of the above drawbacks.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provides the child cart which is simple in structure, convenient to fold and operate and low in cost.

The utility model is realized by the following technical scheme:

The utility model provides a child cart, can follow expansion position and remove to folding position after locking device unblock, including preceding support frame 1 and with preceding support frame 1 intercrossing and at the back support frame 2 of the rotatable connection of preceding support frame 1 in the cross position, preceding support frame 1 lower extreme be connected with preceding wheel 3, back support frame 2 lower extreme be connected with rear wheel 4, preceding support frame 1 on be equipped with the slider 5 that can slide relative to it, slider 5 and back support frame 2 between still be equipped with two articulated transfer line 6, preceding support frame 1 still be connected with can slide or pivoted push rod assembly 7 relative to it, push rod assembly 7 and back support frame 2 upper end between be equipped with and be used for taking and folding flexible seat pocket 8.

The front support frame 1 comprises a support tube 11, a wheel frame 12 is arranged at the lower end of the support tube 11, front wheels 3 are arranged on two sides of the wheel frame 12, the push rod assembly 7 is slidably connected in the support tube 11, the sliding piece 5 is a sliding sleeve sleeved outside the support tube 11, and the locking device comprises a first locking mechanism 91 arranged between the push rod assembly 7 and the support tube 11 and a second locking mechanism 92 arranged between the sliding sleeve and the support tube 11.

The second locking mechanism 92 comprises a protruding portion 921 arranged on a sliding sleeve, a cavity 922 is formed in the protruding portion 921, a locking block 923 capable of sliding in the cavity 922 is arranged in the cavity, a locking hole capable of being clamped with or separated from the locking block 923 is formed in the supporting tube 11, a pushing portion 73 capable of pushing the locking block 923 out of the locking hole when the pushing portion slides towards the inside of the supporting tube 11 is arranged at the lower end of the push rod assembly 7, and a spring 924 capable of pushing the locking block 923 to return in a sliding mode is further arranged between the locking block 923 and the inner wall of the cavity 922.

The rear supporting frame 2 comprises a left supporting rod 21 and a right supporting rod 22, the left supporting rod 21 comprises a left lower supporting section 211 and a left upper supporting section 212 which is bent relative to the left lower supporting section 211 and integrally formed with the left lower supporting section 211, the right supporting rod 22 comprises a right lower supporting section 221 and a right upper supporting section 222 which is bent relative to the right lower supporting section 221 and integrally formed with the right lower supporting section 221, the left supporting rod 21 and the right supporting rod 22 are rotatably connected with the front supporting frame 1 around a first axis A at bending positions, and the lower part of the seat pocket 8 is connected to the left upper supporting section 212 and the right upper supporting section 222.

The two transmission rods 6 are arranged, one end of one transmission rod 6 is hinged with the sliding sleeve, the other end is hinged with the left lower supporting section 211, one end of the other transmission rod 6 is hinged with the sliding sleeve, and the other end is hinged with the right lower supporting section 221.

The push rod assembly 7 comprises a push rod 71 capable of sliding in the support tube 11 in a telescopic way and a U-shaped push handle 72 arranged at the upper end of the push rod 71, and the upper end of the seat pocket 8 is connected to the push handle 72 through a pull rope 81.

The push rod 71 comprises a lower push rod 711 capable of sliding and stretching in the support tube 11 and an upper push rod 712 capable of sliding and stretching in the lower push rod 711, the push handle 72 is arranged at the upper end of the upper push rod 712, and a third locking mechanism 93 for locking the upper push rod 712 and the lower push rod 711 is arranged between the upper push rod 712 and the lower push rod 711.

The lower push rod 711 has a tubular structure, the third locking mechanism 93 includes a locking hole 931 provided on the lower push rod 711, a locking block 932 capable of moving transversely relative to the lower push rod 712 to be engaged with or disengaged from the locking hole 931 is provided in the upper push rod 712, a locking groove 933 capable of engaging with the edge 931a of the locking hole 931 is provided on the lower surface of the locking block 932, and a driving member 934 capable of driving the locking block 932 to move transversely to disengage from the locking hole 931 after the locking block 932 is driven to move upwardly to disengage from the edge 931a of the locking hole 931 is provided in the upper push rod 712.

A transverse connecting rod 23 is arranged between the left supporting rod 21 and the right supporting rod 22, and the rear wheels 4 are arranged at the lower ends of the left supporting rod 21 and the right supporting rod 22.

The upper end of the supporting tube 11 is provided with a hook 13, and the rear end of the seat pocket 8 is hung on the hook 13 through a hanging ring.

Compared with the prior art, the utility model has the following advantages:

1. When the child stroller is folded, the push rod assembly slides or rotates relative to the front support frame to fold, and then the front support frame and the rear support frame rotate relative to each other, in the process, the sliding part slides downwards along the front support frame, the transmission rod rotates relative to the sliding part and the rear support frame, so that the front support frame and the rear support frame rotate to be close, and the seat pocket for taking is a flexible foldable seat pocket, so that when the push rod assembly, the front support frame and the rear support frame are folded, the seat pocket is folded together. The whole children cart has few connecting rod mechanisms, simple transmission structure and low cost.

2. The left support rod comprises a left lower support section and a left upper support section which is bent relative to the left lower support section and integrally formed with the left lower support section, the right support rod comprises a right lower support section and a right upper support section which is bent relative to the right lower support section and integrally formed with the right lower support section, the upper ends of the left support rod and the right support rod bear seat bags, and the lower ends of the left support rod and the right support rod are connected with rear wheels. Therefore, the left support rod and the right support rod are of integrated integral structures, the whole rear support frame is high in structural strength, high in bearing capacity and low in cost.

3. When the third locking mechanism is unlocked, the upper push rod is required to be pulled upwards, the upper push rod drives the locking block to move upwards, so that the clamping groove on the locking block is separated from the edge of the locking hole, and the locking block can move transversely under the drive of the driving piece and be separated from the locking hole only after the clamping groove is separated from the edge of the locking hole. Therefore, when the third locking mechanism is unlocked, the push rod is required to be lifted upwards, and then the locking block and the locking hole can be separated, so that the effect of the secondary lock is achieved, the situation that the locking block and the locking hole are separated from each other for unlocking due to direct misoperation of the switch is avoided, and the safety is further ensured.

[ Description of the drawings ]

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a perspective view of the present utility model with the seat pocket removed;

FIG. 4 is a side view of the present utility model with the seat pocket removed;

FIG. 5 is a side view of the present utility model during folding with the seat pocket removed;

FIG. 6 is a side view of the present utility model in a collapsed condition with the seat pocket removed;

FIG. 7 is a cross-sectional view of the present utility model with the seat pocket removed;

Fig. 8 is an enlarged view at B in fig. 7;

fig. 9 is an enlarged view at C in fig. 7;

fig. 10 is a perspective view of the components of the present utility model.

[ Detailed description ] of the invention

The utility model is further described below with reference to the accompanying drawings:

As shown in fig. 1 to 6, a stroller can move from an unfolding position to a folding position after being unlocked by a locking device, and comprises a front support frame 1 and a rear support frame 2 which is mutually intersected with the front support frame 1 and is rotatably connected with the front support frame 1 at the intersecting position, wherein the lower end of the front support frame 1 is connected with a front wheel 3, the lower end of the rear support frame 2 is connected with a rear wheel 4, the front support frame 1 is provided with a sliding piece 5 which can slide relative to the front support frame 1, a transmission rod 6 hinged with the sliding piece 5 and the rear support frame 2 is further arranged between the sliding piece 5 and the rear support frame 2, the front support frame 1 is further connected with a push rod assembly 7 which can slide relative to the front support frame, and a flexible seat pocket 8 which is used for taking and can be folded is arranged between the push rod assembly 7 and the upper end of the rear support frame 2. When folding, the push rod assembly 7 slides relative to the front support frame 1 to fold, and then rotates the front support frame 1 and the rear support frame 2 relatively, in the process, the sliding piece 5 slides downwards along the front support frame 1, the transmission rod 6 rotates relative to the sliding piece 5 and the rear support frame 2, so that the front support frame 1 and the rear support frame 2 rotate to be close, and the seat pocket 8 for riding is a flexible foldable seat pocket, therefore, when the push rod assembly 7, the front support frame 1 and the rear support frame 2 are folded, the seat pocket 8 is folded together. The whole children cart has few connecting rod mechanisms, simple transmission structure and low cost. Of course, the push rod assembly 7 may also be rotatably connected to the front support frame 1.

As shown in fig. 3 to 9, the front support 1 includes a support 11, a wheel frame 12 is disposed at the lower end of the support 11, the front wheels 3 are disposed at two sides of the wheel frame 12, the push rod assembly 7 is slidably connected in the support 11, the sliding member 5 is a sliding sleeve sleeved outside the support 11, and the locking device includes a first locking mechanism 91 disposed between the push rod assembly 7 and the support 11 and a second locking mechanism 92 disposed between the sliding sleeve and the support 11. When the stroller is in the unfolded state, the first locking mechanism 91 locks the push rod assembly 7 and the support pipe 11, the second locking mechanism 92 locks the sliding sleeve and the support pipe 11, and the transmission rod 6 supports the rear support frame 2 and the front support frame 1, so that the stroller is kept in the unfolded state. When the stroller needs to be folded, the first locking mechanism 91 and the second locking mechanism 92 are unlocked, the push rod assembly 7 slides relative to the support tube 11 to be folded, the sliding sleeve slides downwards along the support tube 11, the transmission rod 6 slides relative to the sliding sleeve and is rotated by the rear support frame 2, and the rear support frame 2 rotates relative to the front support frame 1 to be close to the front support frame 1. The first locking mechanism 91 may adopt a conventional locking structure of a locking hole and a locking block, which is not described herein.

As shown in fig. 6 and 7, the second locking mechanism 92 includes a protrusion 921 disposed on the sliding sleeve, a cavity 922 is disposed in the protrusion 921, a locking block 923 capable of sliding in the cavity 922 is disposed in the protrusion, a locking hole (not shown in the drawings) capable of being engaged with or disengaged from the locking block 923 is disposed on the supporting tube 11, a pushing portion 73 capable of pushing the locking block 923 out of the locking hole when the pushing member slides toward the inside of the supporting tube 11 is disposed at the lower end of the push rod assembly 7, and a spring 924 capable of pushing the locking block 923 to slide and reset is disposed between the locking block 923 and the inner wall of the cavity 922. When the push rod assembly 7 slides downwards, the pushing part 73 at the lower end of the push rod assembly 7 ejects the locking block 923 from the locking hole on the supporting tube 11, once the locking block 923 is separated from the locking hole, the sliding sleeve can slide downwards along the supporting tube 11, the transmission rod 6 can be sleeved with the rear supporting frame 2 in a sliding manner, and the rear supporting frame 2 can also be folded in a rotating manner relative to the front supporting frame 1.

As shown in fig. 3 and 10, the rear support frame 2 includes a left support bar 21 and a right support bar 22, the left support bar 21 includes a left lower support section 211 and a left upper support section 212 bent with respect to the left lower support section 211 and integrally formed with the left lower support section 211, the right support bar 22 includes a right lower support section 221 and a right upper support section 222 bent with respect to the right lower support section 221 and integrally formed with the right lower support section 221, the left support bar 21 and the right support bar 22 are rotatably connected with the front support frame 1 around the first axis a at a bent position, and the lower portion of the seat pocket 8 is connected to the left upper support section 212 and the right upper support section 222. The left support bar 21 includes a left lower support section 211 and a left upper support section 212 bent with respect to the left lower support section 211 and integrally formed with the left lower support section 211, the right support bar 22 includes a right lower support section 221 and a right upper support section 222 bent with respect to the right lower support section 221 and integrally formed with the right lower support section 221, and the upper ends of the left support bar 21 and the right support bar 22 are supported by the seat pocket 8, the lower ends of which are connected with the rear wheels 4. Therefore, the left support rod 21 and the right support rod 22 are integrally formed, and the whole rear support frame 2 has high structural strength, strong bearing capacity and low cost.

As shown in fig. 3, the two transmission rods 6 are arranged, one end of one transmission rod 6 is hinged with the sliding sleeve, the other end is hinged with the left lower supporting section 211, one end of the other transmission rod 6 is hinged with the sliding sleeve, and the other end is hinged with the right lower supporting section 221. Therefore, the folding child stroller is stable, reliable and firm in the unfolded state, and smooth folding can be ensured when the child stroller is folded.

As shown in fig. 3 to 6, the push rod assembly 7 comprises a push rod 71 capable of sliding telescopically in the support tube 11 and a U-shaped push handle 72 arranged at the upper end of the push rod 71, and the upper end of the seat pocket 8 is connected to the push handle 72 through a pull rope 81.

As shown in fig. 3 to 6, the push rod 71 includes a lower push rod 711 capable of sliding and expanding in the support pipe 11 and an upper push rod 712 capable of sliding and expanding in the lower push rod 711, the push handle 72 is disposed at the upper end of the upper push rod 712, and a third locking mechanism 93 for locking the upper push rod 712 and the lower push rod 711 is disposed between them. The arrangement of the upper push rod 712 and the lower push rod 711 makes the push handle 72 have enough height when the stroller is in the unfolded state, so as to satisfy the pushing of the user. When the stroller is folded, the upper push rod 712 can be slidably stored in the lower push rod 711, and the lower push rod 711 can be slidably stored in the support tube 11, so that the folded stroller is small in size and convenient to carry or store.

As shown in fig. 7 and 9, the lower push rod 711 has a tubular structure, the third locking mechanism 93 includes a locking hole 931 provided in the lower push rod 711, a locking block 932 capable of moving laterally relative to the lower push rod 712 to engage with or disengage from the locking hole 931, a slot 933 capable of engaging with the edge 931a of the locking hole 931 is provided on the lower surface of the locking block 932, and a driving member 934 capable of driving the locking block 932 to move laterally to disengage from the locking hole 931a after the locking block 933 moves upwardly to disengage from the edge 931a of the locking block 931 is provided in the upper push rod 712. When the third locking mechanism 93 is unlocked, the upper push rod 712 needs to be pulled upwards, and the upper push rod 712 drives the locking block 932 to move upwards, so that the locking groove 933 on the locking block 932 is separated from the edge 931a of the locking hole 931, and only after the locking groove 933 is separated from the edge 931a of the locking hole 931, the locking block 932 can move transversely under the drive of the driving piece 934 and be separated from the locking hole 931. Therefore, when unlocking the third locking mechanism 93, the push rod 912 needs to be lifted upwards, and then the locking block 932 and the locking hole 931 can be separated, so that the function of the second lock is achieved, the situation that the locking block 932 and the locking hole 931 are separated and unlocked due to direct misoperation of the switch is avoided, and the safety is further ensured. The driving member 934 may adopt a conventional unlocking driving structure such as a pull rope or a pull rod, which is not described herein.

As shown in fig. 10, a transverse connecting rod 23 is arranged between the left support rod 21 and the right support rod 22, so that the strength of the rear support frame 2 is enhanced, the bearing capacity is improved, and the rear wheels 4 are arranged at the lower ends of the left support rod 21 and the right support rod 22.

As shown in fig. 2 and 4, a hook 13 is arranged at the upper end of the supporting tube 11, and the rear end of the seat pocket 8 is hung on the hook 13 through a hanging ring. Therefore, the upper end of the seat pocket 8 is connected to the handle 72, the lower end of the seat pocket 8 is connected to the upper ends of the left support bar 21 and the right support bar 22, and the rear end of the seat pocket 8 is connected to the upper end of the support tube 11, so that the seat pocket 8 is unfolded and positioned when the stroller is in an unfolded state, thereby facilitating the sitting of the child, and when the stroller is folded, the flexible seat pocket 8 can be directly folded together with the front support frame 1 and the rear support frame 2.

Claims

1. The utility model provides a children's shallow, can remove to folding position from the expansion position after locking device unblock, its characterized in that: including preceding support frame (1) and with preceding support frame (1) intercrossing and in the back support frame (2) of cross position and preceding support frame (1) rotatable coupling, preceding support frame (1) lower extreme be connected with preceding wheel (3), back support frame (2) lower extreme be connected with back wheel (4), preceding support frame (1) on be equipped with relative its gliding slider (5), slider (5) and back support frame (2) between still be equipped with two articulated transfer line (6), preceding support frame (1) still be connected with relative its slip or pivoted push rod subassembly (7), push rod subassembly (7) and back support frame (2) upper end between be equipped with and be used for taking and folding flexible seat pocket (8).

2. The stroller of claim 1, wherein: the front support frame (1) comprises a support tube (11), a wheel frame (12) is arranged at the lower end of the support tube (11), front wheels (3) are arranged on two sides of the wheel frame (12), the push rod assembly (7) is slidably connected in the support tube (11), the sliding piece (5) is a sliding sleeve sleeved outside the support tube (11), and the locking device comprises a first locking mechanism (91) arranged between the push rod assembly (7) and the support tube (11) and a second locking mechanism (92) arranged between the sliding sleeve and the support tube (11).

3. The stroller of claim 2, wherein: the second locking mechanism (92) comprises a protruding portion (921) arranged on the sliding sleeve, a cavity (922) is formed in the protruding portion (921), a locking block (923) capable of sliding in the cavity (922) is arranged in the cavity, a locking hole capable of being clamped with or separated from the locking block (923) is formed in the supporting tube (11), a pushing portion (73) capable of pushing the locking block (923) out of the locking hole when the pushing portion slides towards the inside of the supporting tube (11) is arranged at the lower end of the push rod assembly (7), and a spring (924) capable of pushing the locking block (923) to return in a sliding mode is further arranged between the locking block (923) and the inner wall of the cavity (922).

4. The stroller of claim 2, wherein: the rear support frame (2) include left bracing piece (21) and right bracing piece (22), left bracing piece (21) include left lower part supporting section (211) and relative left lower part supporting section (211) buckle and with left lower part supporting section (211) integrated into one piece's upper left portion supporting section (212), right bracing piece (22) include right lower part supporting section (221) and relative right lower part supporting section (221) buckle and with right lower part supporting section (221) integrated into one piece's upper right portion supporting section (222), left bracing piece (21) and right bracing piece (22) in buckling position and front support frame (1) around first axis (A) rotatable coupling, seat pocket (8) lower part connect on upper left portion supporting section (212) and upper right portion supporting section (222).

5. The stroller of claim 4, wherein: the two transmission rods (6) are arranged, one end of one transmission rod (6) is hinged with the sliding sleeve, the other end of the transmission rod is hinged with the left lower supporting section (211), one end of the other transmission rod (6) is hinged with the sliding sleeve, and the other end of the other transmission rod is hinged with the right lower supporting section (221).

6. The stroller of claim 4, wherein: the push rod assembly (7) comprises a push rod (71) capable of stretching and sliding in the supporting tube (11) and a U-shaped push handle (72) arranged at the upper end of the push rod (71), and the upper end of the seat pocket (8) is connected to the push handle (72) through a pull rope (81).

7. The stroller of claim 6, wherein: the push rod (71) comprises a lower push rod (711) capable of sliding and stretching in the supporting tube (11) and an upper push rod (712) capable of sliding and stretching in the lower push rod (711), the push handle (72) is arranged at the upper end of the upper push rod (712), and a third locking mechanism (93) for locking the upper push rod (712) and the lower push rod (711) is arranged between the upper push rod and the lower push rod.

8. The stroller of claim 7, wherein: the lower push rod (711) is of a tubular structure, the third locking mechanism (93) comprises a locking hole (931) formed in the lower push rod (711), a locking block (932) capable of transversely moving relative to the upper push rod and being locked or separated from the locking hole (931) is arranged in the upper push rod (712), a clamping groove (933) capable of being locked with the edge (931 a) of the locking hole (931) is formed in the lower surface of the locking block (932), and a driving piece (934) capable of driving the locking block (932) to transversely move and separate from the locking hole (931) after the locking block (933) is driven to move upwards to separate from the edge (931 a) of the locking hole (931) is further arranged in the upper push rod (712).

9. The stroller of claim 4, wherein: a transverse connecting rod (23) is arranged between the left supporting rod (21) and the right supporting rod (22), and the rear wheels (4) are arranged at the lower ends of the left supporting rod (21) and the right supporting rod (22).

10. The stroller of claim 4, wherein: the upper end of the supporting tube (11) is provided with a hook (13), and the rear end of the seat pocket (8) is hung on the hook (13) through a hanging ring.