Baby stroller

Abstract

The invention belongs to the technical field of products for children, and discloses a stroller. The stroller comprises a push rod assembly, a first supporting module and a second supporting module, the push rod assembly comprises a push rod, a rotating shaft and a wheel unlocking piece, the push rod is fixedly connected with the rotating shaft, and the wheel unlocking piece is arranged on the rotating shaft in a sleeving mode and synchronously rotates along with the rotating shaft; the first supporting module comprises a first supporting frame, a first wheel assembly and a first locking pin. The second supporting module comprises a second supporting frame, a second wheel assembly and a second locking pin. When the push rod rotates to a first position, the wheel unlocking piece drives the second locking pin to retreat from the second locking groove so as to enable the second wheel assembly to be in a universal state, and when the push rod rotates to a second position, the second locking pin retreats from the second locking groove. The wheel unlocking piece drives the first locking pin to retreat from the first locking groove so that the first wheel assembly can be in a universal state. The baby stroller can ensure that the stroller pushing logic of a user is not changed, and the convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of children's products technology, and in particular to a children's stroller. Background Technology

[0002] As an important means of transportation for infants and toddlers, the core design goal of strollers is to ensure safety while improving ease of operation and user experience. To adapt to different usage scenarios, a stroller with an adjustable push handle has emerged on the market. The push handle of this stroller can rotate relative to the frame, allowing it to tilt backward for easy pushing from behind, or tilt forward so the user is in front of the stroller, facing the child inside. This facilitates face-to-face communication and interaction during movement, significantly enhancing parent-child bonding.

[0003] However, regardless of whether the push lever is in the forward or backward position, the preset state of the omnidirectional guiding mechanism (such as the orientation / omnidirectional switching device) of the front wheel assembly remains unchanged. This results in the stroller's operation logic becoming abnormal and extremely inconvenient when the user switches to the child-facing push mode, since the user's direction of travel is opposite to the stroller's inherent forward direction, while the wheel's guiding logic remains unchanged. Summary of the Invention

[0004] The purpose of this invention is to provide a stroller that ensures the user's stroller logic remains unchanged, thereby improving convenience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A stroller for children includes:

[0007] A push rod assembly includes a push rod, a rotating shaft, and a wheel unlocking component. The push rod is fixedly connected to the rotating shaft, and the wheel unlocking component is sleeved on the rotating shaft and rotates synchronously with the rotating shaft.

[0008] The first support module includes a first support frame, a first wheel assembly, and a first locking pin. The first support frame includes a first connecting part, which is rotatably connected to the rotating shaft. The first wheel assembly is connected to the first support frame. The first wheel assembly is provided with a first locking groove. The first locking pin is pulsatorically connected to the wheel unlocking component and inserted into the first locking groove.

[0009] The second support module includes a second support frame, a second wheel assembly, and a second locking pin. The second support frame includes a second connecting part, which is rotatably connected to the rotating shaft. The second wheel assembly is connected to the second support frame. The second wheel assembly is provided with a second locking groove. The second locking pin is throttlely connected to the wheel unlocking component and inserted into the second locking groove.

[0010] When the push rod rotates to the first position, the wheel unlocking component drives the second locking pin to exit the second locking groove so that the second wheel assembly is in a universal state. When the push rod rotates to the second position, the wheel unlocking component drives the first locking pin to exit the first locking groove so that the first wheel assembly is in a universal state.

[0011] Preferably, the first support module further includes a first unlocking slider and a first connecting rope. The first unlocking slider is slidably disposed on the first connecting part along the radial direction of the rotating shaft. One end of the first connecting rope is connected to the first unlocking slider, and the other end of the first connecting rope is connected to the first locking pin. The first unlocking slider is connected to the wheel unlocking component in a transmission connection.

[0012] Preferably, the first unlocking slider is provided with a first sliding boss, and the wheel unlocking component is provided with a first outer arc surface and a first inner arc surface connected in the circumferential direction, and the radius of the first outer arc surface is greater than the radius of the first inner arc surface. When the push rod is rotated to the first position, the first sliding boss slides against the first inner arc surface. When the push rod is rotated to the second position, the first sliding boss slides against the first outer arc surface.

[0013] Preferably, the second support module further includes a second unlocking slider and a second connecting rope. The second unlocking slider is slidably disposed on the second connecting part along the radial direction of the rotating shaft. One end of the second connecting rope is connected to the second unlocking slider, and the other end of the second connecting rope is connected to the second locking pin. The second unlocking slider is connected to the wheel unlocking component in a transmission connection.

[0014] Preferably, the second unlocking slider is provided with a second sliding boss, and the wheel unlocking component is provided with a second outer arc surface and a second inner arc surface connected in the circumferential direction, and the radius of the second outer arc surface is greater than the radius of the second inner arc surface. When the push rod is rotated to the first position, the second sliding boss slides against the second outer arc surface, and when the push rod is rotated to the second position, the second sliding boss slides against the second inner arc surface.

[0015] Preferably, the first support module further includes a first elastic element, one end of which abuts against the first support frame, and the other end of which abuts against the first locking pin. The first elastic element drives the first locking pin to insert into the first locking groove; and / or

[0016] The second support module further includes a second elastic element, one end of which abuts against the second support frame, and the other end of which abuts against the second locking pin. The second elastic element drives the second locking pin to insert into the second locking groove.

[0017] Preferably, the first support module further includes a first locking block, which is slidably disposed on the first connecting portion along the axial direction of the rotating shaft, and the first locking block locks the relative angle between the second support frame and the first support frame.

[0018] Preferably, the first connecting part is provided with a first slot along the circumference on the side facing the second connecting part rod, the second connecting part is provided with a second slot along the circumference on the side facing the first connecting part, and the outer periphery of the first locking block is provided with a first locking protrusion, the first locking protrusion being slidably disposed in the first slot and capable of being engaged in the second slot.

[0019] Preferably, the push rod assembly further includes a rotation unlocking component, which is sleeved on the rotating shaft and fixedly connected to the push rod. The first support module further includes a first unlocking drive block, and the rotation unlocking component has a first unlocking drive inclined surface on the side facing the first unlocking drive block. The first unlocking drive block slides against the first unlocking drive inclined surface.

[0020] Preferably, the push rod also includes a folded position. During the process of the push rod rotating to the folded position, the rotating unlocking member slides against the first unlocking driving block through the first unlocking driving inclined surface. The first unlocking driving block pushes the first locking block away from the second connecting part, so that the first locking protrusion disengages from the second slot.

[0021] Preferably, the first support module further includes a first locking elastic element, which is disposed between the first connecting portion and the first locking block. The first locking elastic element drives the first locking block to approach the second connecting portion so that the first locking protrusion engages with the second slot.

[0022] Preferably, the second support module further includes a second locking block, which is slidably disposed on the second connecting part along the axial direction of the rotating shaft, and the second locking block locks the relative angle between the second support frame and the push rod.

[0023] Preferably, the second connecting part is provided with a third slot along the circumference on the side facing the push rod, the push rod is provided with a fourth slot along the circumference on the side facing the second connecting part, and the outer periphery of the second locking block is provided with a second locking protrusion, which is slidably disposed in the third slot and can be engaged in the fourth slot.

[0024] Preferably, the push rod assembly further includes a third unlocking slider and a second unlocking drive block. A reversing handle is movably disposed on the push rod. The reversing handle is induced to be connected to the third unlocking slider. The third unlocking slider is induced to be connected to the unlocking drive block. The third unlocking slider drives the unlocking drive block to abut against and push the second locking block away from the push rod, so that the second locking protrusion disengages from the fourth slot.

[0025] Preferably, the third unlocking slider is provided with a second unlocking drive slope, and the third unlocking slider is slidably disposed on the push rod along the radial direction of the rotating shaft, and the second unlocking drive block slidably abuts against the second unlocking drive slope.

[0026] Preferably, the second support module further includes a second locking elastic element, which is disposed between the second connecting portion and the second locking block. The second locking elastic element drives the second locking block to approach the push rod so that the second locking protrusion engages with the fourth slot.

[0027] The beneficial effects of this invention are:

[0028] This invention provides a stroller. In this stroller, the user can rotate a push rod assembly relative to a first support module and a second support module, so that the push rod of the push rod assembly has a first position and a second position. The first position is where the push rod is tilted towards the first support module, and the second position is where the push rod is tilted towards the second support module, allowing the user to push the stroller in either the forward or reverse direction. When the push rod is rotated to the first position, a wheel unlocking component drives a second locking pin out of a second locking groove, causing the second wheel assembly located in front of the user in the direction of pushing the stroller to be in a swivel state. When the push rod is rotated to the second position, the wheel unlocking component drives a first locking pin out of the first locking groove, causing the first wheel assembly located in front of the user in the direction of pushing the stroller to be in a swivel state. In other words, with the rotation and resting position of the push rod, the wheels of the stroller located in front of the user in the direction of pushing the stroller are in a swivel state, while the wheels located behind the user in the direction of pushing the stroller are in a directional state, ensuring that the user's stroller pushing logic remains unchanged and improving convenience. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the push rod of the stroller in the first position according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the push rod of the stroller in the second position according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the first support module according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the second support module according to an embodiment of the present invention;

[0033] Figure 5 This is a partial enlarged cross-sectional view of the connection position of the first support module, the second support module, and the push rod as described in the embodiment of the present invention;

[0034] Figure 6 This is a first exploded view of the connection positions of the first support module, the second support module, and the push rod according to an embodiment of the present invention;

[0035] Figure 7 This is a second exploded view of the connection positions of the first support module, the second support module, and the push rod as described in the embodiment of the present invention;

[0036] Figure 8 This is a first structural schematic diagram of the wheel unlocking component according to an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the second structure of the wheel unlocking component according to an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the push rod of the stroller described in an embodiment of the present invention being in a vertical position;

[0039] Figure 11 This is a schematic diagram of the push rod of the stroller described in an embodiment of the present invention in the folded position;

[0040] Figure 12 This is a schematic diagram of the structure of the rotation unlocking component according to an embodiment of the present invention;

[0041] Figure 13 This is a schematic diagram of the structure of the first unlocking drive block according to an embodiment of the present invention.

[0042] In the picture:

[0043] 1. First support module; 11. First support frame; 111. First connecting part; 112. First slot; 12. First wheel assembly; 121. First wheel frame; 122. First wheel; 123. First connecting pin; 124. First locking groove; 13. First locking pin; 14. First unlocking slider; 141. First sliding boss; 15. First connecting rope; 16. First elastic element; 17. First locking block; 171. First locking protrusion; 18. First unlocking drive block; 181. First unlocking drive boss; 182. Second unlocking drive boss; 19. First locking elastic element;

[0044] 2. Second support module; 21. Second support frame; 211. Second connecting part; 212. Second slot; 213. Third slot; 22. Second wheel assembly; 221. Second wheel frame; 222. Second wheel; 223. Second connecting pin; 224. Second locking groove; 23. Second locking pin; 24. Second unlocking slider; 241. Second sliding boss; 25. Second connecting rope; 26. Second elastic element; 27. Second locking block; 271. Second locking protrusion; 28. Second unlocking drive block; 29. ​​Second locking elastic element;

[0045] 3. Push rod assembly; 31. Push rod; 311. Fourth slot; 312. Horizontal bar; 313. Vertical bar; 32. Rotating shaft; 33. Wheel unlocking component; 331. First outer arc surface; 332. First inner arc surface; 333. First transition surface; 334. Second outer arc surface; 335. Second inner arc surface; 336. Second transition surface; 34. Rotation unlocking component; 341. First unlocking drive slope; 342. Third unlocking drive slope; 35. Third unlocking slider; 351. Second unlocking drive slope; 36. Third connecting rope; 371. Reversing handle; 372. Button; 38. Reset elastic component. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0050] This invention provides a children's stroller, such as Figures 1-4 As shown, the stroller includes a push rod assembly 3, a first support module 1, and a second support module 2. The first support module 1 and the second support module 2 are connected to form a frame. The bottom of the first support module 1 is provided with a first wheel assembly 12, and the bottom of the second support module 2 is provided with a second wheel assembly 22. The push rod assembly 3 is used by the user to push the stroller for easy use.

[0051] To adapt to different usage scenarios, the push rod assembly 3 of this stroller can rotate relative to the frame. It can tilt backward, making it easier for the user to push from behind the stroller, or it can tilt forward, allowing the user to be in front of the stroller and push it towards the child inside. This facilitates face-to-face communication and interaction with the child during the stroller, significantly enhancing parent-child bonding.

[0052] However, regardless of whether the push rod assembly 3 is in the forward or backward position, the preset state of the omnidirectional guiding mechanism (such as the orientation / omnidirectional switching device) of the front wheel assembly remains unchanged. This results in the stroller's operation logic becoming abnormal and extremely inconvenient when the user switches to the child-facing push mode, since the user's direction of travel is opposite to the stroller's inherent forward direction, and the wheel's guiding logic remains unchanged.

[0053] like Figures 3-7As shown, to solve the above problems, in the stroller provided in this embodiment, the push rod assembly 3 includes a push rod 31, a rotating shaft 32, and a wheel unlocking component 33. The push rod 31 is fixedly connected to the rotating shaft 32, and the wheel unlocking component 33 is sleeved on the rotating shaft 32 and rotates synchronously with the rotating shaft 32. The first support module 1 includes a first support frame 11, a first wheel assembly 12, and a first locking pin 13. The first support frame 11 includes a first connecting part 111, which is rotatably connected to the rotating shaft 32. The first wheel assembly 12 is connected to the first support frame 11. The first locking groove 124 is provided, and the first locking pin 13 is connected to the wheel unlocking component 33 and inserted into the first locking groove 124. The second support module 2 includes a second support frame 21, a second wheel assembly 22 and a second locking pin 23. The second support frame 21 includes a second connecting part 211, which is rotatably connected to the rotating shaft 32. The second wheel assembly 22 is connected to the second support frame 21. The second wheel assembly 22 is provided with a second locking groove 224, and the second locking pin 23 is connected to the wheel unlocking component 33 and inserted into the second locking groove 224.

[0054] For ease of description, in this embodiment, the first support module 1 is a front wheel support module, the first wheel assembly 12 is a front wheel assembly, the second support module 2 is a rear wheel support module, and the second wheel assembly 22 is a rear wheel assembly. When the push rod 31 rotates to the first position, the user pushes the stroller in the reverse direction, and the wheel unlocking component 33 drives the second locking pin 23 to disengage from the second locking groove 224, so that the second wheel assembly 22 is in a omnidirectional state. When the push rod 31 rotates to the second position, the user pushes the stroller in the forward direction, and the wheel unlocking component 33 drives the first locking pin 13 to disengage from the first locking groove 124, so that the first wheel assembly 12 is in a omnidirectional state. The first wheel assembly 12 includes two front wheels, and the second wheel assembly 22 includes two rear wheels; the four wheels improve the stability of the stroller.

[0055] In this stroller, the user can rotate the push rod assembly 3 relative to the first support module 1 and the second support module 2, so that the push rod 31 of the push rod assembly 3 has a first position and a second position. For example... Figure 1 As shown, the first position is where push rod 31 is tilted towards the first support module 1, as... Figure 2As shown, the second position is where the push rod 31 is tilted towards the second support module 2, allowing the user to push the stroller in either the reverse or forward direction. When the push rod 31 rotates to the first position, the wheel unlocking component 33 drives the second locking pin 23 out of the second locking groove 224, causing the second wheel assembly 22 located in front of the user in the stroller's direction to be in a swivel state. When the push rod 31 rotates to the second position, the wheel unlocking component 33 drives the first locking pin 13 out of the first locking groove 124, causing the first wheel assembly 12 located in front of the user in the stroller's direction to be in a swivel state. In other words, with the rotation and resting position of the push rod 31, the wheels of the stroller located in front of the user in the stroller's direction are in a swivel state, while the wheels located behind the user in the stroller's direction are in a directional state, ensuring that the user's stroller pushing logic remains unchanged and improving convenience.

[0056] like Figure 3 As shown, in this embodiment, the first wheel assembly 12 includes a first wheel frame 121, a first wheel 122, and a first connecting pin 123. The first wheel 122 is rotatably mounted on the first wheel frame 121, and the first connecting pin 123 is fixedly connected to the first wheel frame 121. A first connecting hole is provided at the bottom of the first support frame 11, and the first connecting pin 123 is inserted into the first connecting hole and can rotate within the first connecting hole. A first locking groove 124 is provided on the first wheel frame 121. When the first locking pin 13 is inserted into the first locking groove 124, the first wheel frame 121 is fixed and in a fixed state. When the first locking pin 13 is pulled out of the first locking groove 124, the first wheel frame 121 is unlocked and in a omnidirectional state.

[0057] like Figure 4 As shown, in this embodiment, the second wheel assembly 22 includes a second wheel frame 221, a second wheel 222, and a second connecting pin 223. The second wheel 222 is rotatably mounted on the second wheel frame 221, and the second connecting pin 223 is fixedly connected to the second wheel frame 221. A second connecting hole is provided at the bottom of the second support frame 21, and the second connecting pin 223 is inserted into the second connecting hole and can rotate within the second connecting hole. A second locking groove 224 is provided on the second wheel frame 221. When the second locking pin 23 is inserted into the second locking groove 224, the second wheel frame 221 is fixed and in a fixed state. When the second locking pin 23 is pulled out of the second locking groove 224, the second wheel frame 221 is unlocked and in a omnidirectional state.

[0058] like Figure 6 and Figure 7As shown, the first support module 1 also includes a first unlocking slider 14 and a first connecting rope 15. The first unlocking slider 14 is slidably disposed on the first connecting part 111 along the radial direction of the rotating shaft 32. One end of the first connecting rope 15 is connected to the first unlocking slider 14, and the other end of the first connecting rope 15 is connected to the first locking pin 13. The first unlocking slider 14 is connected to the wheel unlocking component 33 in a transmission connection. When the wheel unlocking component 33 drives the first unlocking slider 14 to slide, the first unlocking slider 14 pulls the first locking pin 13 through the first connecting rope 15, thereby pulling the first locking pin 13 out of the first locking groove 124, thereby unlocking the first wheel assembly 12 and putting the first wheel assembly 12 in a omnidirectional state.

[0059] Specifically, such as Figures 6-9 As shown, in order to link the state of the first wheel assembly 12 with the rotation angle of the push rod 31, the first unlocking slider 14 is provided with a first sliding boss 141. The wheel unlocking component 33 is provided with a first outer arc surface 331 and a first inner arc surface 332 connected in the circumferential direction, and the radius of the first outer arc surface 331 is larger than the radius of the first inner arc surface 332. When the push rod 31 rotates to the first position, the first sliding boss 141 slides against the first inner arc surface 332. When the push rod 31 rotates to the second position, the first sliding boss 141 slides against the first outer arc surface 331.

[0060] Due to the radius difference between the first outer arc surface 331 and the first inner arc surface 332, as the wheel unlocking component 33 rotates with the rotating shaft 32, the first unlocking slider 14 will be in different positions due to the different positions of the first sliding boss 141 on the outer periphery of the wheel unlocking component 33, thereby causing the first connecting rope 15 to be in a relaxed or pulled state, and thus driving the movement of the first locking pin 13.

[0061] In order to enable the first sliding boss 141 to smoothly transition between the first outer arc surface 331 and the first inner arc surface 332, the wheel unlocking component 33 is provided with a first transition surface 333 in the circumferential direction, and the two ends of the first transition surface 333 are respectively connected to the first outer arc surface 331 and the first inner arc surface 332.

[0062] like Figure 6 and Figure 7As shown, the second support module 2 also includes a second unlocking slider 24 and a second connecting rope 25. The second unlocking slider 24 is slidably disposed on the second connecting part 211 along the radial direction of the rotating shaft 32. One end of the second connecting rope 25 is connected to the second unlocking slider 24, and the other end of the second connecting rope 25 is connected to the second locking pin 23. The second unlocking slider 24 is connected to the wheel unlocking component 33 in a transmission connection. When the wheel unlocking component 33 drives the second unlocking slider 24 to slide, the second unlocking slider 24 pulls the second locking pin 23 through the second connecting rope 25, thereby pulling the second locking pin 23 out of the second locking groove 224, thereby unlocking the second wheel assembly 22 and putting the second wheel assembly 22 in a omnidirectional state.

[0063] Specifically, such as Figures 6-9 As shown, in order to link the state of the first wheel assembly 12 with the rotation angle of the push rod 31, the second unlocking slider 24 is provided with a second sliding boss 241. The wheel unlocking component 33 is provided with a second outer arc surface 334 and a second inner arc surface 335 connected in the circumferential direction, and the radius of the second outer arc surface 334 is larger than the radius of the second inner arc surface 335. When the push rod 31 rotates to the first position, the second sliding boss 241 slides against the second outer arc surface 334. When the push rod 31 rotates to the second position, the second sliding boss 241 slides against the second inner arc surface 335.

[0064] Due to the radius difference between the second outer arc surface 334 and the second inner arc surface 335, as the wheel unlocking component 33 rotates with the rotating shaft 32, the second unlocking slider 24 will be in different positions due to the different positions of the second sliding boss 241 on the outer periphery of the wheel unlocking component 33, thereby causing the second connecting rope 25 to be in a relaxed or pulled state, and thus driving the movement of the second locking pin 23.

[0065] In order to enable the second sliding boss 241 to smoothly transition between the second outer arc surface 334 and the second inner arc surface 335, the wheel unlocking member 33 is provided with a second transition surface 336 in the circumferential direction, and the two ends of the second transition surface 336 are respectively connected to the second outer arc surface 334 and the second inner arc surface 335.

[0066] It is worth noting that, such as Figure 10 As shown, when the push rod 31 is in a vertical position, both the first wheel assembly 12 and the second wheel assembly 22 are in a omnidirectional state, making it easy for the user to rotate the stroller in place. In this embodiment, the first outer arc surface 331 and the second outer arc surface 334 are both the outer peripheral surfaces of the wheel unlocking component 33, so that the wheel unlocking component 33 can keep the first unlocking slider 14 and the second unlocking slider 24 in a state of pulling the first connecting rope 15 and the second connecting rope 25 at most angles, thereby ensuring that when the push rod 31 is in a vertical position, both the first wheel assembly 12 and the second wheel assembly 22 are in a omnidirectional state.

[0067] like Figure 3 As shown, the first support module 1 also includes a first elastic element 16. One end of the first elastic element 16 abuts against the first support frame 11, and the other end of the first elastic element 16 abuts against the first locking pin 13. The first elastic element 16 drives the first locking pin 13 to insert into the first locking groove 124. The first elastic element 16 ensures that when the first unlocking slider 14 is not pulling the first locking pin 13 by the first connecting rope 15, the first locking pin 13 can be inserted into the first locking groove 124. This ensures the stability of the first locking pin 13 and allows the first unlocking slider 14 to return to its original position, thus ensuring the normal switching of the stroller's states.

[0068] Similarly, such as Figure 4 As shown, the second support module 2 also includes a second elastic element 26. One end of the second elastic element 26 abuts against the second support frame 21, and the other end abuts against the second locking pin 23. The second elastic element 26 drives the second locking pin 23 to insert into the second locking groove 224. The second elastic element 26 ensures that when the second unlocking slider 24 is not pulled by the second connecting rope 25, the second locking pin 23 can be inserted into the second locking groove 224. This ensures the stability of the second locking pin 23 and allows the second unlocking slider 24 to return to its original position, thus ensuring the normal switching of the stroller's states.

[0069] like Figure 11 As shown, it is worth noting that most strollers have a folding function for easy storage, which allows the first support frame 11 and the second support frame 21 to rotate relative to each other. Figures 5-7 As shown, to ensure the stability of the stroller when a child is placed in it, the first support module 1 also includes a first locking block 17. The first locking block 17 is slidably disposed on the first connecting part 111 along the axial direction of the rotating shaft 32. The first locking block 17 locks the relative angle between the second support frame 21 and the first support frame 11. When the first support frame 11 and the second support frame 21 are extended to a preset angle, the first locking block 17 will lock the relative angle between the second support frame 21 and the first support frame 11, thereby ensuring the relative stability between the first support frame 11 and the second support frame 21.

[0070] Preferably, the first connecting part 111 has a first slot 112 circumferentially arranged on the side facing the second connecting part 211, and the second connecting part 211 has a second slot 212 circumferentially arranged on the side facing the first connecting part 111. The outer periphery of the first locking block 17 has a first locking protrusion 171, which slides in the first slot 112 and can be engaged in the second slot 212. The first locking protrusion 171 on the outer periphery of the first locking block 17 is always engaged with the first slot 112. When the first locking block 17 moves axially along the rotating shaft 32, it can be engaged in or disengaged from the second slot 212. When the first locking protrusion 171 is engaged in the second slot 212, the relative angle between the first connecting part 111 and the second connecting part 211 is locked. When the first locking protrusion 171 is disengaged from the second slot 212, the relative angle between the first connecting part 111 and the second connecting part 211 is unlocked.

[0071] like Figures 5-7 , Figure 12 and Figure 13 As shown, the push rod assembly 3 also includes a rotating unlocking component 34, which is sleeved on the rotating shaft 32 and fixedly connected to the push rod 31. The first support module 1 also includes a first unlocking drive block 18. The rotating unlocking component 34 has a first unlocking drive inclined surface 341 on the side facing the first unlocking drive block 18, and the first unlocking drive block 18 slides against the first unlocking drive inclined surface 341.

[0072] When the user prepares to fold the stroller, the push rod 31 of the push rod assembly 3 needs to be rotated. At this time, the unlocking part 34 also rotates and slides against the first unlocking drive block 18 through the first unlocking drive inclined surface 341, so that the first unlocking drive block 18 moves along the axial direction of the rotating shaft 32, so that the first unlocking drive block 18 can push the first locking block 17 in the direction of the first connecting part 111, thereby unlocking the relative angle between the first support frame 11 and the second support frame 21.

[0073] Specifically, the push rod 31 also includes a folding position. During the rotation of the push rod 31 to the folding position, the rotating unlocking member 34 slides against the first unlocking drive block 18 via the first unlocking drive inclined surface 341. The first unlocking drive block 18 pushes the first locking block 17 away from the second connecting part 211, so that the first locking protrusion 171 disengages from the second slot 212. This structure allows the user to unlock the relative angle between the first support frame 11 and the second support frame 21 simply by rotating the push rod 31 to the folding position when preparing to fold the stroller. This simplifies the structure, allows the stroller to be folded with one hand, and greatly facilitates the use of smaller children. Parents can hold the child with one hand and fold the stroller with the other.

[0074] like Figure 12As shown, a third unlocking drive ramp 342 is also provided on the side of the rotating unlocking member 34 facing the first unlocking drive block 18. The first unlocking drive block 18 is provided with a first unlocking drive boss 181 and a second unlocking drive boss 182, wherein the first unlocking drive boss 181 slides against the first unlocking drive ramp 341, and the second unlocking drive boss 182 slides against the third unlocking drive ramp 342. This structure enables the driving force of the rotating unlocking member 34 on the first unlocking drive block 18 to be evenly distributed, preventing the first unlocking drive block 18 from shifting.

[0075] In this embodiment, the first support module 1 further includes a first locking elastic element 19, which is disposed between the first connecting portion 111 and the first locking block 17. The first locking elastic element 19 drives the first locking block 17 closer to the second connecting portion 211, so that the first locking protrusion 171 engages with the second slot 212. The first locking elastic element 19 can not only drive the first locking protrusion 171 of the first locking block 17 to engage with the second slot 212 in a timely manner when the relative angle between the first support frame 11 and the second support frame 21 reaches a preset value, but also ensure the stability of the first locking block 17, preventing the first locking protrusion 171 from dislodging from the second slot 212 during the use of the stroller, but also increase the feel when unlocking and improve the user experience.

[0076] It is worth noting that, such as Figures 5-7 As shown, to ensure the stability of the relative angle between the push rod 31 and the first support frame 11 or the second support frame 21, so that the user can push the stroller with the push rod 31, the second support module 2 also includes a second locking block 27. The second locking block 27 is slidably disposed on the second connecting part 211 along the axial direction of the rotating shaft 32, and the second locking block 27 locks the relative angle between the second support frame 21 and the push rod 31. When the push rod 31 and the second support frame 21 are extended to a preset angle, the first locking block 27 will lock the relative angle between the second support frame 21 and the first support frame 11, thereby ensuring the relative stability between the first support frame 11 and the second support frame 21. The second locking block 27 can lock the push rod 31 in at least a first position or a second position.

[0077] Preferably, the second connecting part 211 has a third slot 213 circumferentially arranged on the side facing the push rod 31, and the push rod 31 has a fourth slot 311 circumferentially arranged on the side facing the second connecting part 211. The outer periphery of the second locking block 27 has a second locking protrusion 271, which slides in the third slot 213 and can be engaged in the fourth slot 311. The second locking protrusion 271 on the outer periphery of the second locking block 27 is always engaged with the third slot 213. When the second locking block 27 moves axially along the rotating shaft 32, it can be engaged in or disengaged from the fourth slot 311. When the second locking protrusion 271 is engaged in the fourth slot 311, the relative angle between the second connecting part 211 and the push rod 31 is locked. When the second locking protrusion 271 is disengaged from the fourth slot 311, the relative angle between the second connecting part 211 and the push rod 31 is unlocked.

[0078] like Figures 5-7 As shown, the push rod assembly 3 also includes a third unlocking slider 35 and a second unlocking drive block 28. A reversing handle 371 is movably provided on the push rod 31. The reversing handle 371 is connected to the third unlocking slider 35 in a transmission connection. The third unlocking slider 35 is connected to the unlocking drive block in a transmission connection. The third unlocking slider 35 drives the unlocking drive block to abut against and push the second locking block 27 away from the push rod 31, so that the second locking protrusion 271 disengages from the fourth slot 311.

[0079] When the user is about to rotate the push rod 31, the reversing handle 371 needs to be pulled. At this time, the third unlocking slider 35 also moves. Simultaneously, the third unlocking slider 35 drives the unlocking drive block to abut against and push the second locking block 27 away from the push rod 31, so that the second locking protrusion 271 disengages from the fourth slot 311, thereby unlocking the relative angle between the second support frame 21 and the push rod 31.

[0080] It is worth noting that the push rod 31 includes a horizontal bar 312 and two vertical bars 313. The two vertical bars 313 are respectively connected to the two ends of the horizontal bar 312. The first support module 1 includes two first connecting parts 111, and the second support module 2 includes two second connecting parts 211. One first connecting part 111, one second connecting part 211 and one vertical bar 313 are connected by a pivot 32. The other first connecting part 111, the other second connecting part 211 and another vertical bar 313 are connected by a pivot 32.

[0081] For ease of operation, the horizontal bar 312 is equipped with a button 372, and both vertical bars 313 are equipped with reversing handles 371. The button 372 is connected to the two reversing handles 371, and each reversing handle 371 is connected to the corresponding third unlocking slider 35 via a third connecting rope 36. When the user needs to unlock the relative angle between the push rod 31 and the second support frame 21, they only need to hold the horizontal bar 312 and press the button 372, which is simple and quick.

[0082] In this embodiment, the third unlocking slider 35 is provided with a second unlocking drive ramp 351. The third unlocking slider 35 is slidably disposed on the push rod 31 along the radial direction of the rotating shaft 32, and the second unlocking drive block 28 slides against the second unlocking drive ramp 351. When the user is about to rotate the push rod 31, the button 372 needs to be pressed to drive the third unlocking slider 35 to move radially along the rotating shaft 32. Through the sliding contact between the second unlocking drive ramp 351 and the second unlocking drive block 28, the second unlocking drive block 28 moves axially along the rotating shaft 32, so that the second unlocking drive block 28 can push the second locking block 27 towards the second connecting part 211, thereby unlocking the relative angle between the second support frame 21 and the push rod 31.

[0083] In this embodiment, the second support module 2 further includes a second locking elastic member 29, which is disposed between the second connecting portion 211 and the second locking block 27. The second locking elastic member 29 drives the second locking block 27 closer to the push rod 31, so that the second locking protrusion 271 engages with the fourth slot 311. The second locking elastic member 29 can not only drive the second locking protrusion 271 of the second locking block 27 to engage with the fourth slot 311 in time when the relative angle between the second support frame 21 and the push rod 31 reaches a preset value, but also ensure the stability of the second locking block 27, preventing the second locking protrusion 271 from dislodging from the fourth slot 311 during the use of the stroller, but also improve the feel when unlocking and enhance the user experience.

[0084] In this embodiment, the push rod 31 also includes a reset elastic element 38, which is disposed between the third unlocking slider 35 and the push rod 31. The reset elastic element 38 drives the third unlocking slider 35 to reset, and can also drive the button 372 to extend out of the push rod 31 through the third connecting rope 36 and the reversing handle 371, so as to ensure that when the user does not press the button 372, the third unlocking slider 35 is in the initial state, and the second unlocking drive block 28 is in the initial position away from the second connecting part 211, so as to ensure that the second locking elastic element 29 drives the second locking block 27 to approach the push rod 31, so that the second locking protrusion 271 is engaged in the fourth slot 311.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A children's stroller, characterized in that, include: The push rod assembly (3) includes a push rod (31), a rotating shaft (32) and a wheel unlocking component (33). The push rod (31) is fixedly connected to the rotating shaft (32), and the wheel unlocking component (33) is sleeved on the rotating shaft (32) and rotates synchronously with the rotating shaft (32). The first support module (1) includes a first support frame (11), a first wheel assembly (12) and a first locking pin (13). The first support frame (11) includes a first connecting part (111), which is rotatably connected to the rotating shaft (32). The first wheel assembly (12) is connected to the first support frame (11). The first wheel assembly (12) is provided with a first locking groove (124). The first locking pin (13) is operatively connected to the wheel unlocking member (33) and inserted into the first locking groove (124). The second support module (2) includes a second support frame (21), a second wheel assembly (22), and a second locking pin (23). The second support frame (21) includes a second connecting part (211), which is rotatably connected to the rotating shaft (32). The second wheel assembly (22) is connected to the second support frame (21). The second wheel assembly (22) is provided with a second locking groove (224). The second locking pin (23) is operatively connected to the wheel unlocking member (33) and inserted into the second locking groove (224). When the push rod (31) rotates to the first position, the wheel unlocking component (33) drives the second locking pin (23) to exit the second locking groove (224) so ​​that the second wheel assembly (22) is in a universal state. When the push rod (31) rotates to the second position, the wheel unlocking component (33) drives the first locking pin (13) to exit the first locking groove (124) so ​​that the first wheel assembly (12) is in a universal state.

2. The stroller according to claim 1, characterized in that, The first support module (1) further includes a first unlocking slider (14) and a first connecting rope (15). The first unlocking slider (14) is slidably disposed on the first connecting part (111) along the radial direction of the rotating shaft (32). One end of the first connecting rope (15) is connected to the first unlocking slider (14), and the other end of the first connecting rope (15) is connected to the first locking pin (13). The first unlocking slider (14) is connected to the wheel unlocking component (33) in a transmission connection.

3. The stroller according to claim 2, characterized in that, The first unlocking slider (14) is provided with a first sliding boss (141). The wheel unlocking component (33) is provided with a first outer arc surface (331) and a first inner arc surface (332) connected in the circumferential direction. The radius of the first outer arc surface (331) is greater than the radius of the first inner arc surface (332). When the push rod (31) rotates to the first position, the first sliding boss (141) slides against the first inner arc surface (332). When the push rod (31) rotates to the second position, the first sliding boss (141) slides against the first outer arc surface (331).

4. The stroller according to claim 1, characterized in that, The second support module (2) further includes a second unlocking slider (24) and a second connecting rope (25). The second unlocking slider (24) is slidably disposed on the second connecting part (211) along the radial direction of the rotating shaft (32). One end of the second connecting rope (25) is connected to the second unlocking slider (24), and the other end of the second connecting rope (25) is connected to the second locking pin (23). The second unlocking slider (24) is connected to the wheel unlocking component (33) in a transmission connection.

5. The stroller according to claim 4, characterized in that, The second unlocking slider (24) is provided with a second sliding boss (241). The wheel unlocking component (33) is provided with a second outer arc surface (334) and a second inner arc surface (335) connected in the circumferential direction. The radius of the second outer arc surface (334) is greater than the radius of the second inner arc surface (335). When the push rod (31) rotates to the first position, the second sliding boss (241) slides against the second outer arc surface (334). When the push rod (31) rotates to the second position, the second sliding boss (241) slides against the second inner arc surface (335).

6. The stroller according to claim 1, characterized in that, The first support module (1) further includes a first elastic element (16), one end of which abuts against the first support frame (11), and the other end of which abuts against the first locking pin (13). The first elastic element (16) drives the first locking pin (13) to insert into the first locking groove (124); and / or, The second support module (2) further includes a second elastic element (26), one end of which abuts against the second support frame (21), and the other end of which abuts against the second locking pin (23). The second elastic element (26) drives the second locking pin (23) to insert into the second locking groove (224).

7. The stroller according to any one of claims 1 to 6, characterized in that, The first support module (1) further includes a first locking block (17), which is slidably disposed on the first connecting part (111) along the axial direction of the rotating shaft (32), and the first locking block (17) locks the relative angle between the second support frame (21) and the first support frame (11).

8. The stroller according to claim 7, characterized in that, The first connecting part (111) is provided with a first slot (112) along the circumferential direction on the side facing the second connecting part (211) rod, and the second connecting part (211) is provided with a second slot (212) along the circumferential direction on the side facing the first connecting part (111). The outer periphery of the first locking block (17) is provided with a first locking protrusion (171). The first locking protrusion (171) is slidably disposed in the first slot (112) and can be engaged in the second slot (212).

9. The stroller according to claim 8, characterized in that, The push rod assembly (3) further includes a rotating unlocking component (34), which is sleeved on the rotating shaft (32) and fixedly connected to the push rod (31). The first support module (1) further includes a first unlocking drive block (18), and the rotating unlocking component (34) has a first unlocking drive inclined surface (341) on the side facing the first unlocking drive block (18). The first unlocking drive block (18) slides against the first unlocking drive inclined surface (341).

10. The stroller according to claim 9, characterized in that, The push rod (31) also includes a folded position. During the process of the push rod (31) rotating to the folded position, the rotating unlocking member (34) slides against the first unlocking driving block (18) through the first unlocking driving inclined surface (341). The first unlocking driving block (18) pushes the first locking block (17) away from the second connecting part (211) so that the first locking protrusion (171) disengages from the second slot (212).

11. The stroller according to claim 8, characterized in that, The first support module (1) further includes a first locking elastic element (19), which is disposed between the first connecting part (111) and the first locking block (17). The first locking elastic element (19) drives the first locking block (17) to approach the second connecting part (211) so that the first locking protrusion (171) is engaged in the second slot (212).

12. The stroller according to any one of claims 1 to 6, characterized in that, The second support module (2) further includes a second locking block (27), which is slidably disposed on the second connecting part (211) along the axial direction of the rotating shaft (32). The second locking block (27) locks the relative angle between the second support frame (21) and the push rod (31).

13. The stroller according to claim 12, characterized in that, The second connecting part (211) is provided with a third slot (213) circumferentially on the side facing the push rod (31), and the push rod (31) is provided with a fourth slot (311) circumferentially on the side facing the second connecting part (211). The outer periphery of the second locking block (27) is provided with a second locking protrusion (271). The second locking protrusion (271) is slidably disposed in the third slot (213) and can be engaged in the fourth slot (311).

14. The stroller according to claim 13, characterized in that, The push rod assembly (3) further includes a third unlocking slider (35) and a second unlocking drive block (28). A reversing handle (371) is movably provided on the push rod (31). The reversing handle (371) is connected to the third unlocking slider (35) in a transmission connection. The third unlocking slider (35) is connected to the unlocking drive block in a transmission connection. The third unlocking slider (35) drives the unlocking drive block to abut against and push the second locking block (27) away from the push rod (31), so that the second locking protrusion (271) disengages from the fourth slot (311).

15. The stroller according to claim 14, characterized in that, The third unlocking slider (35) is provided with a second unlocking drive slope (351). The third unlocking slider (35) is slidably disposed on the push rod (31) along the radial direction of the rotating shaft (32). The second unlocking drive block (28) slides against the second unlocking drive slope (351).

16. The stroller according to claim 13, characterized in that, The second support module (2) further includes a second locking elastic element (29), which is disposed between the second connecting part (211) and the second locking block (27). The second locking elastic element (29) drives the second locking block (27) to approach the push rod (31) so that the second locking protrusion (271) is engaged in the fourth slot (311).

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