A baby stroller with an integrated handle lock

Abstract

This invention discloses a baby stroller with an integrated handle lock, including a front leg tube, a rear leg tube, a handle tube, a support rod, an integrated locking device, and a seat. The front and rear leg tubes are respectively connected to the handle joint via front leg joints. A slider is provided in a groove on the handle joint, and a limiting rod on the slider mates with an arc-shaped groove on the front leg joint. The rear leg tube is rotatably connected to the front leg tube, and a support rod is connected between the rear leg tube and the handle tube. A pair of front wheels and a pair of rear wheels are respectively provided on the front and rear leg tubes. The two ends of the push tube are sleeved onto the handle tube, and the push tube is equipped with an integrated locking device, including a joint locking key and a folding locking key. The seat is also connected to the inner side of the two handle joints. Advantages: The integrated design of push tube height adjustment and folding / unlocking provides good unlocking effect, improves the stroller's integrity, enhances aesthetics, and the quadrilateral support structure ensures high stability and prevents wobbling.

Description

Technical Field

[0001] This invention relates to a baby stroller with an integrated handle lock. Background Technology

[0002] There are many different styles of baby strollers on the market, and these baby strollers have different folding and unlocking methods. Although most baby strollers on the market can achieve folding and unlocking functions, in actual use, the folding structure is complicated and the stability is poor. Moreover, although all of them can adjust the height of the handle and unlock when the stroller is folded, the unlocking method is a separate structural design and is located in different positions on the baby stroller, which not only affects the overall structure but is also unsightly. Summary of the Invention

[0003] To address the aforementioned issues, the present invention aims to provide a baby stroller with an integrated handle lock that combines push tube height adjustment and stroller folding / unlocking, offering superior unlocking performance, enhanced stroller integrity, aesthetic appeal, a quadrilateral support structure, high stroller stability, and a wobbly design.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A baby stroller with an integrated handle lock includes a front leg tube, a rear leg tube, a handle tube, a support rod, an integrated locking device, and a seat. The front and rear leg tubes are respectively connected to the handle joint via front leg joints on both sides. A slider is provided in a groove on the handle joint, and a limiting rod on the slider mates with an arc-shaped groove on the front leg joint. The rear leg tube is rotatably connected to the front leg tube, and a support rod is connected between the rear leg tube and the handle tube. A pair of front wheels and a pair of rear wheels are respectively provided on the front and rear leg tubes. The two ends of the push tube are sleeved onto the handle tube, and an integrated locking device is provided on the push tube. The locking device is an integrated locking device including a joint lock key and a retraction lock key. A protective sleeve is fitted onto the outside of the push tube, and the joint lock key and retraction lock key are located inside the protective sleeve. The joint lock key has two movement grooves and a pair of symmetrically designed guide grooves. The two slide rods in the guide grooves are respectively set in the moving grooves on both sides of the inner wall of the protective sleeve. The two slide rods are respectively connected to the handle cable and the joint cable. The handle cable is connected to the handle adjustment mechanism, and the end of the joint cable is connected to the slider. The retraction lock key has a limit block, and the position of the limit block corresponds to the two movement grooves. The inner side of the two handle joints is also connected to the seat.

[0006] Preferably, the forefoot joint and the handle joint are rotatably fastened together via a central rod.

[0007] Preferably, the slider is connected to the central rod via a waist-shaped groove, and the end of the arc-shaped groove extends into a vertical groove.

[0008] Preferably, a support rod is rotatably connected between the rear leg tube and the adapter on the handle tube. The support rod has a protrusion, and the buckle on the adapter has a buckle groove corresponding to the protrusion. The support rod, the rear leg tube, and the adapter are rotatably connected by a pin.

[0009] Preferably, the two motion grooves are designed in a stepped manner, and the distance between the two guide grooves is designed to gradually approach each other at an incline.

[0010] Preferably, a return spring is provided between the slider and the slide groove, between the two motion grooves and the limiting block, and between the end of the retraction lock key and the protective sleeve.

[0011] Preferably, the handle adjustment mechanism includes push block one and push block two, and push block one and push block two are in contact with each other through an inclined surface. Push block two is provided with a locking block that corresponds to the adjustment port on the handle tube.

[0012] Preferably, the joint cable is fitted with a bendable but not stretchable steel cable sleeve, and the two ends of the steel cable sleeve are fixed.

[0013] Preferably, the front leg tube, rear leg tube, handle tube, and support rod form a four-dimensional support structure.

[0014] The advantages of this invention are: the integrated design of the hand-push tube height adjustment and the trolley unlocking has a good unlocking effect, improves the integrity of the trolley, enhances its aesthetics, and the quadrilateral support structure ensures high stability and prevents wobbling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is an exploded view of the forefoot joint and handle joint of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection structure between the support rod, the front leg tube, and the handle tube of the present invention.

[0018] Figure 4 This is an exploded view of the integrated lock device of the present invention. Detailed Implementation

[0019] like Figure 1 , 2As shown in Figures 3 and 4, a baby stroller with an integrated handle lock includes a front leg tube 1, a rear leg tube 3, a handle tube 5, a support rod 11, an integrated locking device, and a seat 25. The front leg tube 1 and rear leg tube 3 are respectively connected to the handle joint 7 via front leg joints 6 on both sides. A slider 9 is provided in a groove 8 on the handle joint 7, and a limiting rod 10 on the slider 9 engages with an arc-shaped groove on the front leg joint 6. The rear leg tube 3 is rotatably connected to the front leg tube 1. A support rod 11 is connected between the rear leg tube 3 and the handle tube 5. A pair of front wheels 2 and a pair of rear wheels 4 are respectively provided on the front leg tube 1 and the rear leg tube 3. The push tube 15 is sleeved at both ends onto the handle tube 5, and an integrated locking device is provided on the push tube 15. The integrated locking device includes a joint lock key 17 and a retraction lock key 23. A sleeve 16 is fitted onto the outside of the push tube 15, and the sleeve 16 contains the joint lock key 17 and the retraction lock key 23. The joint lock key 17 has two movement grooves 18 and a pair of symmetrically designed guide grooves 19. The two slide rods 20 in the guide grooves 19 are respectively set in the moving grooves on both sides of the inner wall of the sleeve 16. The two slide rods 20 are respectively connected to the handle cable 21 and the joint cable 22. The handle cable 21 is connected to the handle adjustment mechanism, and the end of the joint cable 22 is connected to the slider 9. The retraction lock key 23 has a limiting block 24, and the position of the limiting block 24 corresponds to the two movement grooves 18. The inner sides of the two handle joints 7 are also connected to seats 25. The front foot joint 6 and the handle joint 7 are rotatably fastened through the central rod. The slider 9 is sleeved with the central rod through the waist-shaped groove, and the end of the arc-shaped groove extends into a vertical groove. A support rod 11 is rotatably connected between the rear leg tube 3 and the adapter 12 on the handlebar tube 5. The support rod 11 has a protrusion, and the fastener 13 on the adapter 12 has a fastening groove 14 corresponding to the protrusion. The support rod 11, the rear leg tube 3, and the adapter 12 are rotatably connected by a pin. The two movement grooves 18 are designed in a stepped manner, and the distance between the two guide grooves 19 is designed to gradually approach each other at an incline. Return springs are placed between the slider 9 and the slide groove 8, between the two movement grooves 18 and the limiting block 24, and between the end of the retraction lock key 23 and the protective sleeve 16. The handlebar adjustment mechanism includes a push block one and a push block two, and the push block one and the push block two are in contact with each other through an inclined surface. The push block two has a locking block corresponding to the adjustment port on the handlebar tube. A bendable but non-stretchable steel cable sleeve is sleeved on the joint cable 22, and the two ends of the steel cable sleeve are fixed. The front leg tube 1, rear leg tube 3, handle tube 5, and support rod 11 form a four-dimensional support structure.

[0020] The front leg tube 1 and rear leg tube 3 of this invention are respectively provided with a pair of front wheels 2 and a pair of rear wheels 4 for forward and backward movement. The support rod 11 is provided with a protrusion, and the fastener 13 on the adapter 12 is provided with a fastening groove 14. The protrusion on the active support rod 11 engages with the fastening groove 14, thereby achieving a lock and preventing the trolley from falling apart during transport. The seat 25 is for infants to lie down or sit. When it is necessary to unlock the push tube 15 to adjust the height, pressing the joint lock key 17 drives the two sliding rods 20. When the handle cables 21 are brought closer together, they retract and unlock the height adjustment mechanism, allowing the push tube 15 to slide and adjust its height on the handle tube 5. Simultaneously, due to the design of the second movement groove 18 and the limiting block 24, the folding lock key 23 can only move the second movement groove 18 to the first step where it contacts the limiting block 24, preventing further movement. This means the slide bar 20 on the joint cable 22 will not be pulled, thus preventing the trolley from unlocking and folding. When it is necessary to fold the trolley, the push... The retraction lock key 23 moves its limiting block 24 to the middle of the second movement groove 18, so that after the retraction lock key 23 moves, the limiting block 24 can move to the bottom of the second movement groove 18. Thus, through the guide groove 19 on the joint lock key 17, both slide rods 20 of the handle cable 21 and the joint cable 22 can be brought closer together, realizing the retraction of the handcart. At the same time, since the joint cable 22 is fitted with a steel cable sleeve, and the two ends of the steel cable sleeve are fixed, when the push tube 5 is lowered to the lowest point, the steel cable sleeve is bent but its length is not affected. With the angle unchanged, the slider 9 of the handcart can also be moved by driving the joint cable 22 to achieve the unlocking and closing action. The movement of the slider 9 drives the limit rod 10 to move from the vertical groove to the arc groove, thereby rotating the push tube 5 to make the limit rod 10 move in the arc groove, achieving the closing effect of the handcart. The handle height can be adjusted and the closing and unlocking actions can be achieved independently. At the same time, the front leg tube 1, the rear leg tube 3, the handle tube 5 and the support rod 11 form a four-deformation support structure, which is stable and does not wobble during use, and has a long service life.

[0021] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A baby stroller with an integrated handle lock, comprising a front leg tube (1), a rear leg tube (3), a handle tube (5), a support rod (11), an integrated lock device, a seat (25), characterized in that, The front leg pipe (1) and the rear leg pipe (3) are respectively connected with the handle joint (7) through the front leg joint (6) on the two sides, the sliding groove (8) on the handle joint (7) is provided with the sliding block (9), the limiting rod (10) on the sliding block (9) is connected with the arc-shaped slot on the front leg joint (6), the rear leg pipe (3) is rotatably connected with the front leg pipe (1), the support rod (11) is connected between the rear leg pipe (3) and the handle pipe (5), a pair of front wheels (2) and a pair of rear wheels (4) are respectively arranged on the front leg pipe (1) and the rear leg pipe (3), the hand pushing pipe (15) is sleeved on the handle pipe (5), the integral lock device is arranged on the hand pushing pipe (15), the integral lock device comprises the joint lock key (17) and the folding lock key (23), the sheath (16) is sleeved on the outer side of the hand pushing pipe (15), the joint lock key (17) and the folding lock key (23) are arranged in the sheath (16), the two motion grooves (18) and the pair of symmetrical guide grooves (19) are arranged on the joint lock key (17), the two sliding rods (20) in the guide grooves (19) are movably arranged in the moving grooves on the two sides of the inner wall of the sheath (16), the handle cable (21) and the joint cable (22) are respectively connected with the two sliding rods (20), the handle cable (21) is connected with the handle adjusting mechanism, the end of the joint cable (22) is connected with the sliding block (9), the limiting block (24) is arranged on the folding lock key (23), the position of the limiting block (24) corresponds to the two motion grooves (18), and the seat (25) is arranged on the inner side of the two handle joints (7).

2. A one-piece handle lock stroller as claimed in claim 1, wherein, The front leg joint (6) and the handle joint (7) are rotatably connected through the center rod.

3. A one-piece handle lock stroller as claimed in claim 1, wherein, The sliding block (9) is sleeved with the center rod through the waist-shaped slot, and the vertical slot is extended from the end of the arc-shaped slot.

4. The one-piece handle lock stroller of claim 1, wherein, The support rod (11) is rotatably connected between the rear leg pipe (3) and the handle pipe (5) through the adapter (12), the convex block is arranged on the support rod (11), the buckle (13) on the adapter (12) is provided with the buckle groove (14) corresponding to the convex block, and the support rod (11) is rotatably connected with the rear leg pipe (3) and the adapter (12) through the pin.

5. The one-piece handle lock stroller of claim 1, wherein, The two motion grooves (18) are designed in a stepped manner, and the distance between the two guide grooves (19) is designed to be gradually close to each other in an inclined manner.

6. The one-piece handle lock stroller of claim 1, wherein, The sliding block (9) and the sliding groove (8), the two motion grooves (18) and the limiting block (24), and the end of the folding lock key (23) and the sheath (16) are all provided with return springs.

7. The one-piece handle lock stroller of claim 1, wherein, The handle adjusting mechanism comprises the push block one and the push block two, the push block one and the push block two are in contact through the inclined surface, and the push block two is provided with the clamping block corresponding to the gear adjusting opening on the handle pipe.

8. The one-piece handle lock stroller of claim 1, wherein, The joint cable (22) is sleeved with the steel cable sleeve which can be bent but not stretched, and the steel cable sleeve is fixedly designed at both ends.

9. The one-piece handle lock stroller of claim 1, wherein, The front leg pipe (1), the rear leg pipe (3), the handle pipe (5) and the support rod (11) form a four-transformation support structure.

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