Foldable baby carriage

Abstract

The utility model relates to a foldable baby carriage which comprises a baby carriage body, a first connecting rod, a rotating assembly, a pushing handle, a locking assembly, a folding support, a fixed support, a rotating lining frame, a backrest support and a rotating support, the top end of the baby carriage body is rotationally connected with the first connecting rod, and the rotating assembly is installed on the first connecting rod; a pushing handle is installed above the first connecting rods, a locking assembly is installed in the middle of the top end of the pushing handle, a folding support is installed between the first connecting rods, fixing supports are symmetrically installed on one side of the folding support, and rotating lining frames are rotatably installed on the outer walls of one ends of the fixing supports; the top end of the folding support is symmetrically and rotationally connected with backrest supports, and the top end of the folding support is rotationally connected with a rotating support; the baby carriage can be folded front, back, left and right, so that the baby carriage can be completely folded, the minimum size is achieved, and the baby carriage is convenient to carry and store.

Description

Technical Field

[0001] This utility model relates to the field of stroller technology, and in particular to a foldable stroller. Background Technology

[0002] A stroller is a tool vehicle designed to facilitate outdoor activities for infants. There are various models, and foldable strollers are one of them. However, existing strollers are generally complicated to operate, usually requiring several steps to complete. They need to be folded left and right first, and then folded forward and backward. They cannot be folded forward and backward and left and right at the same time, making the folding process very cumbersome and unable to be fully folded to achieve the smallest size. Utility Model Content

[0003] The problem solved by this utility model is to provide a foldable stroller that can be folded in all directions, so that the stroller can be completely folded to achieve the smallest size, making it convenient to carry and store.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a foldable stroller, comprising a stroller body, a first connecting rod, a rotating assembly, a push handle, a locking assembly, a folding bracket, a fixed bracket, a rotating bushing, a backrest bracket, and a rotating bracket. The top of the stroller body is rotatably connected to the first connecting rod, the rotating assembly is mounted on the first connecting rod, the push handle is mounted above the first connecting rod, the locking assembly is mounted at the middle of the top of the push handle, the folding bracket is mounted between the first connecting rods, the fixed bracket is symmetrically mounted on one side of the folding bracket, the rotating bushing is rotatably mounted on the outer wall of one end of the fixed bracket, the backrest bracket is symmetrically rotatably connected to the top of the folding bracket, and the rotating bracket is rotatably connected to the top of the folding bracket.

[0005] Preferably, the rotating assembly includes a first joint housing, a sleeve, a fourth connecting rod, a second joint housing, a fifth connecting rod, a first limiting groove, a first limiting block, a first spring, a first locking gear, a slot, a connecting sleeve, a canopy rod seat, a first rivet, a gear unlocking component, a second limiting groove, a second spring, a sliding block, an unlocking block, an unlocking rod, and a fixing block. One end of the pusher is inserted into the sleeve, and a gear unlocking component is installed inside the sleeve. The gear unlocking component has a second limiting groove, and a second spring is fixedly connected inside the second limiting groove. A sliding block is fixedly connected to one side of the gear unlocking component, and one side of the sliding block is slidably connected to the inner wall of the sleeve. An unlocking rod is fixedly connected to one side of the gear unlocking component, and an unlocking block is fixedly connected to the outer wall of the gear unlocking component on the other side of the unlocking rod. A fixing block is installed at one end of the first connecting rod corresponding to the unlocking rod position. One end of the sleeve... A first joint housing is fixedly connected to one end. A fourth connecting rod is fixedly connected to the outer side of the first joint housing. A second joint housing is engaged with one side of the outer wall of the first joint housing. A fifth connecting rod is fixedly connected to the outer side of the second joint housing. A first limiting groove is formed on the inner side of the second joint housing. A first locking gear is meshed in the first limiting groove. A first spring is fixedly connected to one side of the first locking gear, and the other end of the first spring is fixedly connected to the inner wall of the first limiting groove. A first limiting block is fixedly connected to one side of the inner wall of the first limiting groove. A slot is formed on the first locking gear corresponding to the position of the first limiting block. A first rivet is installed in the middle of the first joint housing and the second joint housing, and one side of the first rivet penetrates the interior of the first locking gear. A connecting sleeve is threaded to one side of the second joint housing, and a canopy rod seat is fixedly connected to the outer side of the connecting sleeve.

[0006] Preferably, the locking assembly includes a third joint housing, a fourth joint housing, a plug-in rod, a third limiting groove, a second limiting block, a third spring, a mounting port, a second locking gear, an unlocking hole, a fourth spring, a mounting plate, an unlocking button, an unlocking post, a cover plate, a second rivet, a decorative cover, a buckle groove, a first buckle, a gear button, and a second buckle. A plug-in rod is installed inside the push handle. One end of the plug-in rod is fixedly connected to the fourth joint housing. The fourth joint housing has a third limiting groove inside. A second limiting block is fixedly connected to the third limiting groove. A second locking gear is engaged within the third limiting groove, and the second limiting block is inserted into the inner wall of the second locking gear. A third spring is fixedly connected to the bottom end of the second locking gear, and the other end of the third spring is fixedly connected to the inner wall of the third limiting groove. The top end of the fourth joint housing is engaged with the third joint housing, and the outer side of the third joint housing is fixedly connected to the outer wall of the plug-in rod. The top end of the third joint housing... A decorative cover is installed, with a first buckle symmetrically fixed to the outer side of the decorative cover, and one side of the first buckle engaging with the inner wall of the third joint housing. A gear button is installed at the top of the decorative cover, and a second buckle is symmetrically fixed to the outer side of the gear button. A buckle groove is opened on the inner wall of the top of the decorative cover corresponding to the position of the second buckle. An installation plate is installed on the inner wall of the bottom end of the fourth joint housing, with an unlocking button installed on the outer side of the installation plate. An installation opening is opened on the outer side of the fourth joint housing corresponding to the position of the unlocking button. Unlocking pins are symmetrically fixed to the outer wall of the top of the installation plate, and unlocking holes are symmetrically opened on the second locking gear corresponding to the position of the unlocking pins. A fourth spring is fixed to the top of the installation plate, and the top of the fourth spring is fixed to the inner wall of the fourth joint housing. A cover plate is threaded to the bottom end of the fourth joint housing, and a second rivet is installed in the middle of the cover plate, with one side of the second rivet penetrating the inner wall of the second locking gear.

[0007] Preferably, a second connecting rod is rotatably connected to the bottom end of the stroller body, a first roller is installed at the bottom end of the second connecting rod, a third connecting rod is fixedly connected to the bottom end of the stroller body, a second roller is installed at the bottom end of the third connecting rod, and a brake pad is installed on the second roller.

[0008] Preferably, a first folding plate is symmetrically rotatably connected to one side of the backrest bracket, a third folding plate is symmetrically rotatably connected to one side of the backrest bracket, and the top of one side of the third folding plate is rotatably connected to the outer wall of the first folding plate. A second folding plate is symmetrically rotatably connected to one side of the backrest bracket, and the two second folding plates are rotatably connected by a hinge. A fourth folding plate is rotatably connected to the outer wall of one side of the second folding plate.

[0009] Preferably, a first rotating plate is inserted into the bottom end of the fifth connecting rod, and one side of the first rotating plate is rotatably connected to the outer wall of the third connecting rod. A second rotating plate is rotatably connected to one side of the first rotating plate, and one side of the second rotating plate is rotatably connected to the outer wall of the second connecting rod.

[0010] Preferably, the third spring is sleeved on the outer wall of the second rivet, and the third spring is a torsion spring.

[0011] The beneficial effects of this utility model are: the stroller can be folded in all directions, so that the stroller can be completely folded to achieve the smallest size, making it convenient to carry and store. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is an exploded view of the rotating component of this utility model;

[0014] Figure 3 This is an exploded view of the locking component of this utility model;

[0015] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0016] Legend:

[0017] 1. Stroller body; 2. First connecting rod; 3. Rotating assembly; 4. Push handle; 5. Locking assembly; 6. Folding bracket; 7. Fixed bracket; 8. Rotating liner; 9. Backrest bracket; 10. Rotating bracket; 11. First rotating plate; 12. Second rotating plate; 13. Second connecting rod; 14. First roller; 15. Third connecting rod; 16. Second roller; 17. Brake foot pad; 18. First folding plate; 19. Second folding plate; 20. Third folding plate; 21. Fourth folding plate; 301. First joint housing; 302. Sleeve; 303. Fourth connecting rod; 304. Second joint housing; 305. Fifth connecting rod; 306. First limiting groove; 307. First limiting block; 308. First spring; 309. First locking gear; 3010. Slot; 3011. Connecting sleeve; 30 12. Canopy rod holder; 3013. First rivet; 3014. Gear unlocking component; 3015. Second limiting groove; 3016. Second spring; 3017. Sliding block; 3018. Unlocking block; 3019. Unlocking rod; 3020. Fixing block; 501. Third joint housing; 502. Fourth joint housing; 503. Insert rod; 504. Third limiting groove; 505. Second limiting block; 506. Third spring; 507. Mounting port; 508. Second locking gear; 509. Unlocking hole; 5010. Fourth spring; 5011. Mounting plate; 5012. Unlocking button; 5013. Unlocking post; 5014. Cover plate; 5015. Second rivet; 5016. Decorative cover; 5017. Snap-on groove; 5018. First snap-on; 5019. Gear button; 5020. Second snap-on. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-3A foldable stroller includes a stroller body 1, a first connecting rod 2, a rotating assembly 3, a push handle 4, a locking assembly 5, a folding bracket 6, a fixing bracket 7, a rotating liner 8, a backrest bracket 9, a rotating bracket 10, a first rotating plate 11, a second rotating plate 12, a second connecting rod 13, and first rollers 14. The top of the stroller body 1 is rotatably connected to the first connecting rod 2, the rotating assembly 3 is mounted on the first connecting rod 2, the push handle 4 is mounted above the first connecting rod 2, the locking assembly 5 is mounted at the top center of the push handle 4, and the folding bracket 6 is installed between the first connecting rods 2. A fixed bracket 7 is symmetrically installed on one side of the folding bracket 6. A rotating bushing 8 is rotatably installed on the outer wall of one end of the fixed bracket 7. A backrest bracket 9 is symmetrically rotatably connected to the top of the folding bracket 6, and a rotating bracket 10 is rotatably connected to the top of the folding bracket 6. A second connecting rod 13 is rotatably connected to the bottom of the stroller body 1. A first roller 14 is installed at the bottom of the second connecting rod 13. A third connecting rod 15 is fixedly connected to the bottom of the stroller body 1. A second roller 16 is installed at the bottom of the third connecting rod 15. A brake foot pad 17 is installed on the second roller 16. When the stroller body 1 needs to be positioned... When fixed, pressing the brake pad 17 can fix the position of the second roller 16 on the third connecting rod 15; the bottom end of the fifth connecting rod 305 is inserted with a first rotating plate 11, and one side of the first rotating plate 11 is rotatably connected to the outer wall of the third connecting rod 15. One side of the first rotating plate 11 is rotatably connected to a second rotating plate 12, and one side of the second rotating plate 12 is rotatably connected to the outer wall of the second connecting rod 13. When the first joint housing 301 and the second joint housing 304 rotate, the first rotating plate 11 is driven to rotate upward, which in turn drives the second rotating plate 12. The stroller body 1 is rotated downwards, causing the second connecting rod 13 to fold along the stroller body 1 towards the third connecting rod 15, thus folding the stroller body 1. When the stroller body 1 is folded, the folding bracket 6 is automatically folded by force, and the rotating bracket 10 is rotated onto the backrest bracket 9, thus fully folding the stroller body 1. When an infant is sitting in the stroller body 1, if the child is about to fall asleep, the rotating liner 8 can be rotated to make the rotating liner 8 flush with the fixed bracket 7 and fixed to the fixed bracket 7, ensuring that the child's legs can be placed.A first folding plate 18 is symmetrically rotatably connected to one side of the backrest support 9. A third folding plate 20 is symmetrically rotatably connected to one side of the backrest support 9, and the top of one side of the third folding plate 20 is rotatably connected to the outer wall of the first folding plate 18. A second folding plate 19 is symmetrically rotatably connected to one side of the backrest support 9, and the two second folding plates 19 are rotatably connected by a hinge. A fourth folding plate 21 is rotatably connected to the outer wall of one side of the second folding plate 19. When the folding support 6 is folded, the backrest support 9 will move closer to each other. The top of the third folding plate 20 will be rotated upward by the first folding plate 18, so that the first folding plate 18 and the third folding plate 20 will fold together. The second folding plate 19 will be rotated downward, so that the second folding plate 19 will fold together. Then the fourth folding plate 21 will be moved closer to the middle.

[0021] Rotating assembly 3 includes a first joint housing 301, a sleeve 302, a fourth connecting rod 303, a second joint housing 304, a fifth connecting rod 305, a first limiting groove 306, a first limiting block 307, a first spring 308, a first locking gear 309, a slot 3010, a connecting sleeve 3011, a canopy rod seat 3012, a first rivet 3013, a gear unlocking component 3014, a second limiting groove 3015, a second spring 3016, a sliding block 3017, an unlocking block 3018, an unlocking rod 3019, and a fixing block 3020. One end of the pusher 4 is inserted into a sleeve. 302. A gear unlocking component 3014 is installed inside the sleeve 302. A second limiting groove 3015 is formed on the gear unlocking component 3014. A second spring 3016 is fixedly connected inside the second limiting groove 3015. A sliding block 3017 is fixedly connected to one side of the gear unlocking component 3014, and one side of the sliding block 3017 is slidably connected to the inner wall of the sleeve 302. An unlocking rod 3019 is fixedly connected to one side of the gear unlocking component 3014. An unlocking block 3018 is fixedly connected to the outer wall of the gear unlocking component 3014 on the other side of the unlocking rod 3019. One end of the first connecting rod 2 is corresponding to the unlocking. A fixing block 3020 is installed at position 3019. A first joint housing 301 is fixedly connected to one end of the sleeve 302. A fourth connecting rod 303 is fixedly connected to the outer side of the first joint housing 301. A second joint housing 304 is engaged with one side of the outer wall of the first joint housing 301. A fifth connecting rod 305 is fixedly connected to the outer side of the second joint housing 304. A first limiting groove 306 is formed on the inner side of the second joint housing 304. A first locking gear 309 is engaged within the first limiting groove 306. A first spring 308 is fixedly connected to one side of the first locking gear 309. The other end of the spring 308 is fixed to the inner wall of the first limiting groove 306. A first limiting block 307 is fixed to one side of the inner wall of the first limiting groove 306. A slot 3010 is provided on the first locking gear 309 corresponding to the position of the first limiting block 307. A first rivet 3013 is installed in the middle of the first joint housing 301 and the second joint housing 304, and one side of the first rivet 3013 penetrates the interior of the first locking gear 309. A connecting sleeve 3011 is threaded to one side of the second joint housing 304, and a canopy rod seat 3012 is fixed to the outside of the connecting sleeve 3011.During unlocking, rotating the pusher 4 causes an interaction force between the fixed block 3020 and the unlocking lever 3019. Through the relative sliding between the inclined surfaces of the fixed block 3020 and the unlocking lever 3019, the pusher 4, during rotation, can push the unlocking lever 3019 along the axis perpendicular to the first joint housing 301 and the second joint housing 304. Furthermore, the unlocking lever 3019, during its movement, can also move the sliding block 3017. Since the surface of the sliding block 3017 in contact with the slot 3010 is inclined, the sliding block 3017, during its movement, can push the first locking gear 309 into the interior of the second joint housing 304. When the pusher 4 rotates to its maximum angle, the sliding block 3017 completely slides out of the slot 3010. At this time, both the first spring 308 and the second spring 3016 are in a compressed state, thus causing the first locking gear... The teeth of 309 engage with the first limiting groove 306 inside the second joint housing 304, and then the limiting block inside the second joint housing 304 is positioned in the tooth groove of the locking gear. The first limiting block 307 inside the second joint housing engages with the outside of the tooth groove of the first locking gear 309. At this time, the first joint housing 301 is disengaged from the first locking gear 309. This is the unlocked state, which allows the first joint housing 301 and the second joint housing 304 to rotate relative to each other, causing the first connecting rod 2 to fold along the stroller body 1 towards the third connecting rod 15. When the first joint housing 301 and the second joint housing 304 rotate, the first rotating plate 11 is driven to rotate upward, and then the second rotating plate 12 is driven to rotate downward, thereby causing the second connecting rod 13 to fold along the stroller body 1 towards the third connecting rod 15, thus folding the stroller body 1.

[0022] The locking assembly 5 includes a third joint housing 501, a fourth joint housing 502, a plug-in rod 503, a third limiting groove 504, a second limiting block 505, a third spring 506, a mounting port 507, a second locking gear 508, an unlocking hole 509, a fourth spring 5010, a mounting plate 5011, an unlocking button 5012, an unlocking post 5013, a cover plate 5014, a second rivet 5015, a decorative cover 5016, a buckle groove 5017, a first buckle 5018, a gear button 5019, and a second buckle 5020. A plug-in rod 503 is installed inside the push handle 4. One end of the plug-in rod 503 is fixedly connected to the fourth joint housing 502. The fourth joint housing 502 has a third limiting groove 504 inside. A second limiting block 505 is fixedly connected within the third limiting groove 504. A second locking gear 508 is meshed within the third limiting groove 504, and the second limiting block 505 is inserted into the inner wall of the second locking gear 508. A third spring 506 is fixedly connected to the bottom end of the second locking gear 508, and the other end of the third spring 506 is fixedly connected to the inner wall of the third limiting groove 504. The top end of the fourth joint housing 502 is engaged with the third joint housing 501, and the outer side of the third joint housing 501 is fixedly connected to the outer wall of the insertion rod 503. A decorative cover 5016 is installed on the top end of the third joint housing 501. A first buckle 5018 is symmetrically fixed to the outer side of the decorative cover 5016, and one side of the first buckle 5018 is engaged with... A gear button 5019 is installed on the top of a decorative cover 5016 attached to the inner wall of the third joint housing 501. A second buckle 5020 is symmetrically fixed to the outer side of the gear button 5019. A buckle groove 5017 is provided on the inner wall of the top of the decorative cover 5016 corresponding to the position of the second buckle 5020. A mounting plate 5011 is installed on the inner wall of the bottom end of the fourth joint housing 502. An unlocking button 5012 is installed on the outer side of the mounting plate 5011. An installation opening 507 is provided on the outer side of the fourth joint housing 502 corresponding to the position of the unlocking button 5012. Unlocking pins 5013 are symmetrically fixed to the outer wall of the top of the mounting plate 5011. Unlocking holes 5013 are symmetrically provided on the second locking gear 508 corresponding to the position of the unlocking pins 5013. 09. A fourth spring 5010 is fixedly connected to the top of the mounting plate 5011, and the top of the fourth spring 5010 is fixedly connected to the inner wall of the fourth joint housing 502. The bottom end of the fourth joint housing 502 is threadedly connected to a cover plate 5014. A second rivet 5015 is installed in the middle of the cover plate 5014, and one side of the second rivet 5015 penetrates the inner wall of the second locking gear 508. A third spring 506 is sleeved on the outer wall of the second rivet 5015, and the third spring 506 is a torsion spring. When the folded stroller body 1 needs to be extended, the second locking gear 508 can be reset to the inside of the third joint housing 501. In this way, the second locking gear 508 is reset and rotated by the third spring 506.When the stroller body 1 needs to be folded, rotate the unlock button 5012 to rotate the unlock pin 5013 on the mounting plate 5011 to the unlock hole 509. At this time, press the gear button 5019 to disengage the second latch 5020 on the gear button 5019 from the latch groove 5017 on the decorative cover 5016, and push the second locking gear 508 into the fourth joint housing 502. At this time, both the third spring 506 and the fourth spring 5010 are in a compressed state, so that all the teeth of the second locking gear 508 are in the fourth joint housing 502. The third limiting groove 504 inside the joint housing 502 engages with the tooth groove of the second locking gear 508, causing the third joint housing 501 to separate from the second locking gear 508. This unlocks the third joint housing 501 and the fourth joint housing 502, allowing them to rotate relative to each other. Then, the connecting rod 503 drives the pusher 4 to rotate towards the joint.

[0023] Working principle: When the stroller body 1 needs to be folded, rotate the unlock button 5012 to rotate the unlock pin 5013 on the mounting plate 5011 to the unlock hole 509. At this time, press the gear button 5019 to disengage the second latch 5020 on the gear button 5019 from the latch groove 5017 on the decorative cover 5016, and push the second locking gear 508 into the fourth joint housing 502. At this time, the third spring 506 and the fourth spring 5010 are both in a compressed state, so that all the teeth of the second locking gear 508 are located in the third limiting groove 504 inside the fourth joint housing 502, and the third limiting groove 504 inside the fourth joint housing 502 engages with the tooth groove of the second locking gear 508, so that the third joint housing 501 and the... The second locking gear 508 is disengaged, thereby disengaging the third joint housing 501 from the second locking gear 508, resulting in an unlocked state. This allows the third joint housing 501 and the fourth joint housing 502 to rotate relative to each other. Then, the connecting rod 503 drives the pusher 4 to rotate towards the joint. During unlocking, rotating the pusher 4 causes an interaction force between the fixed block 3020 on the pusher 4 and the unlocking rod 3019. Through the relative sliding between the inclined surfaces on the fixed block 3020 and the unlocking rod 3019, the pusher 4, during rotation, can push the unlocking rod 3019 to move along the axis perpendicular to the first joint housing 301 and the second joint housing 304. Furthermore, during this movement, the unlocking rod 3019... The sliding block 3017 can move together with the sliding block 3017. Because the surface of the sliding block 3017 that contacts the slot 3010 is inclined, the sliding block 3017 can push the first locking gear 309 into the interior of the second joint housing 304 during movement. When the pusher 4 rotates to its maximum angle, the sliding block 3017 completely slides out of the slot 3010. At this time, both the first spring 308 and the second spring 3016 are in a compressed state, causing the teeth of the first locking gear 309 to engage in the first limiting groove 306 inside the second joint housing 304. Then, the limiting block inside the second joint housing 304 is positioned in the tooth groove of the locking gear. The first limiting block 307 inside the second joint housing engages with the outside of the tooth groove of the first locking gear 309. At this time, the first locking gear 309... When the first joint housing 301 disengages from the first locking gear 309, it is in an unlocked state, allowing the first joint housing 301 and the second joint housing 304 to rotate relative to each other. This causes the first connecting rod 2 to fold along the stroller body 1 towards the third connecting rod 15. As the first and second joint housings 301 and 304 rotate, the first rotating plate 11 rotates upwards, and then the second rotating plate 12 rotates downwards, causing the second connecting rod 13 to fold along the stroller body 1 towards the third connecting rod 15. During folding, the force causes the folding bracket 6 to fold towards the center, and the backrest brackets 9 to move closer together. The first folding plate 18 then causes the top of the third folding plate 20 to rotate upwards.The first folding plate 18 and the third folding plate 20 are folded together, and the second folding plate 19 is rotated downwards to fold together. Then, the fourth folding plate 21 is moved closer to the center, and finally, the rotating bracket 10 is rotated onto the backrest bracket 9, thus folding the stroller body 1. This allows the stroller to be folded forward, backward, left, and right, achieving a completely folded size for easy carrying and storage.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foldable stroller, characterized in that, The stroller includes a main body (1), a first connecting rod (2), a rotating assembly (3), a pusher (4), a locking assembly (5), a folding bracket (6), a fixed bracket (7), a rotating liner (8), a backrest bracket (9), and a rotating bracket (10). The top of the main body (1) is rotatably connected to the first connecting rod (2), the rotating assembly (3) is installed on the first connecting rod (2), the pusher (4) is installed above the first connecting rod (2), the locking assembly (5) is installed at the middle of the top of the pusher (4), the folding bracket (6) is installed between the first connecting rods (2), the fixed bracket (7) is symmetrically installed on one side of the folding bracket (6), the rotating liner (8) is rotatably installed on the outer wall of one end of the fixed bracket (7), the backrest bracket (9) is symmetrically rotatably connected to the top of the folding bracket (6), and the rotating bracket (10) is rotatably connected to the top of the folding bracket (6).

2. A foldable stroller according to claim 1, characterized in that, The rotating assembly (3) includes a first joint housing (301), a sleeve (302), a fourth connecting rod (303), a second joint housing (304), a fifth connecting rod (305), a first limiting groove (306), a first limiting block (307), a first spring (308), a first locking gear (309), a slot (3010), a connecting sleeve (3011), a canopy rod seat (3012), a first rivet (3013), a gear unlocking component (3014), a second limiting groove (3015), a second spring (3016), a sliding block (3017), an unlocking block (3018), an unlocking rod (3019), and a fixing block (3020). One end of the pusher (4) is inserted with... A sleeve (302) is provided, and a gear unlocking component (3014) is installed inside the sleeve (302). A second limiting groove (3015) is provided on the gear unlocking component (3014). A second spring (3016) is fixedly connected in the second limiting groove (3015). A sliding block (3017) is fixedly connected to one side of the gear unlocking component (3014), and one side of the sliding block (3017) is slidably connected to the inner wall of the sleeve (302). An unlocking rod (3019) is fixedly connected to one side of the gear unlocking component (3014). An unlocking block (3018) is fixedly connected to the outer wall of the gear unlocking component (3014) on the other side of the unlocking rod (3019). One end of the first connecting rod (2) A fixing block (3020) is installed at the position corresponding to the unlocking rod (3019). A first joint housing (301) is fixedly connected to one end of the sleeve (302). A fourth connecting rod (303) is fixedly connected to the outer side of the first joint housing (301). A second joint housing (304) is engaged with one side of the outer wall of the first joint housing (301). A fifth connecting rod (305) is fixedly connected to the outer side of the second joint housing (304). A first limiting groove (306) is opened on the inner side of the second joint housing (304). A first locking gear (309) is engaged in the first limiting groove (306). A first spring (308) is fixedly connected to one side of the first locking gear (309). The other end of the first spring (308) is fixed to the inner wall of the first limiting groove (306). A first limiting block (307) is fixed to one side of the inner wall of the first limiting groove (306). A slot (3010) is opened on the first locking gear (309) corresponding to the position of the first limiting block (307). A first rivet (3013) is installed in the middle of the first joint housing (301) and the second joint housing (304). One side of the first rivet (3013) passes through the interior of the first locking gear (309). A connecting sleeve (3011) is threaded to one side of the second joint housing (304). A canopy rod seat (3012) is fixed to the outside of the connecting sleeve (3011).

3. A foldable stroller according to claim 1, characterized in that, The locking assembly (5) includes a third joint housing (501), a fourth joint housing (502), a plug rod (503), a third limiting groove (504), a second limiting block (505), a third spring (506), a mounting port (507), a second locking gear (508), an unlocking hole (509), a fourth spring (5010), a mounting plate (5011), an unlocking button (5012), an unlocking post (5013), a cover plate (5014), a second rivet (5015), a decorative cover (5016), a buckle groove (5017), a first buckle (5018), a gear button (5019), and a second buckle (5020). The pusher (4) is equipped with a plug rod (503). 3) One end of the fourth joint housing (502) is fixedly connected to a fourth joint housing (502). A third limiting groove (504) is provided inside the fourth joint housing (502). A second limiting block (505) is fixedly connected inside the third limiting groove (504). A second locking gear (508) is meshed inside the third limiting groove (504). The second limiting block (505) is inserted into the inner wall of the second locking gear (508). A third spring (506) is fixedly connected to the bottom end of the second locking gear (508). The other end of the third spring (506) is fixedly connected to the inner wall of the third limiting groove (504). The top end of the fourth joint housing (502) is engaged with a third joint housing (501). The outer side of the third joint housing (501) is fixedly connected to the insertion rod. On the outer wall of (503), a decorative cover (5016) is installed at the top of the third joint shell (501). A first buckle (5018) is symmetrically fixed to the outer side of the decorative cover (5016), and one side of the first buckle (5018) is engaged with the inner wall of the third joint shell (501). A gear button (5019) is installed at the top of the decorative cover (5016). A second buckle (5020) is symmetrically fixed to the outer side of the gear button (5019). A buckle groove (5017) is opened on the inner wall of the top of the decorative cover (5016) corresponding to the position of the second buckle (5020). An installation plate (5011) is installed on the inner wall of the bottom end of the fourth joint shell (502). An unlocking button (5012) is installed on the outside of the fourth joint housing (502). An installation port (507) is opened on the outside of the fourth joint housing (502) corresponding to the unlocking button (5012). Unlocking posts (5013) are symmetrically fixed to the top outer wall of the mounting plate (5011). Unlocking holes (509) are symmetrically opened on the second locking gear (508) corresponding to the unlocking posts (5013). A fourth spring (5010) is fixed to the top of the mounting plate (5011), and the top of the fourth spring (5010) is fixed to the inner wall of the fourth joint housing (502). A cover plate (5014) is threaded to the bottom of the fourth joint housing (502). A second rivet (5015) is installed in the middle of the cover plate (5014).Furthermore, one side of the second rivet (5015) penetrates the inner wall of the second locking gear (508).

4. A foldable stroller according to claim 1, characterized in that, The bottom end of the stroller body (1) is rotatably connected to a second connecting rod (13), the bottom end of the second connecting rod (13) is equipped with a first roller (14), the bottom end of the stroller body (1) is fixedly connected to a third connecting rod (15), the bottom end of the third connecting rod (15) is equipped with a second roller (16), and a brake pad (17) is installed on the second roller (16).

5. A foldable stroller according to claim 1, characterized in that, The backrest support (9) is symmetrically rotatably connected to a first folding plate (18) on one side, and a third folding plate (20) is symmetrically rotatably connected to one side of the backrest support (9). The top of one side of the third folding plate (20) is rotatably connected to the outer wall of the first folding plate (18). The backrest support (9) is symmetrically rotatably connected to a second folding plate (19) on one side, and the two second folding plates (19) are rotatably connected by a hinge. A fourth folding plate (21) is rotatably connected to the outer wall of one side of the second folding plate (19).

6. A foldable stroller according to claim 2, characterized in that, The bottom end of the fifth connecting rod (305) is inserted with a first rotating plate (11), and one side of the first rotating plate (11) is rotatably connected to the outer wall of the third connecting rod (15). One side of the first rotating plate (11) is rotatably connected to a second rotating plate (12), and one side of the second rotating plate (12) is rotatably connected to the outer wall of the second connecting rod (13).

7. A foldable stroller according to claim 3, characterized in that, The third spring (506) is sleeved on the outer wall of the second rivet (5015), and the third spring (506) is a torsion spring.

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