Quick release structure applied to a stroller and a stroller

Abstract

A quick release structure applied to a child stroller and the child stroller, comprising a first quick release part, a second quick release part, a quick release limiting part, the first quick release part is used for connecting a chassis of the child stroller, the second quick release part is used for connecting a rear wheel structure of the child stroller, and the quick release limiting part is used for limiting the first quick release part, wherein the first quick release part is provided with a first mounting part, the second quick release part is provided with a first mounting cavity and a first mounting position, the first mounting position is arranged outside the first mounting cavity and is connected with the quick release limiting part, and the first mounting part is connected with the first mounting cavity and is limited by the quick release limiting part. The quick release structure is designed without thread connection, has the advantages of improving the convenience of disassembling the chassis and the rear wheel structure, enhancing the reliability of the quick release structure in use, and improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of children's stroller technology, specifically to a quick-release structure for children's strollers, and a children's stroller having the quick-release structure. Background Technology

[0002] The current market offers a variety of stroller styles, which can be broadly categorized by opening mechanism into top-hook, front-folding, and side-opening types. To balance load-bearing strength and lightweight design, foldable strollers generally utilize aluminum alloy tubular frames, with the chassis and uprights forming the basic load-bearing channels.

[0003] However, the rear wheel structure on the chassis of existing side-opening trolleys is mostly designed to be completely disassembled. A quick-release structure is usually set between the chassis and the rear wheel structure. However, the existing quick-release structure is relatively complicated, making installation and disassembly laborious and inconvenient, which affects the user experience. Therefore, this utility model proposes a new solution to the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-release structure for children's strollers and a children's stroller, which has the advantages of improving the convenience of disassembling the chassis and rear wheel structure, enhancing the reliability of the quick-release structure during use, and improving the user experience.

[0005] The technical solution is as follows: A quick-release structure for use in a stroller includes: The first quick-release component is used to connect the chassis of the stroller; The second quick-release component is used to connect the rear wheel structure of the stroller; A quick-release limiting component, wherein the quick-release limiting component is used to limit the first quick-release component; The first quick-release component has a first mounting part, and the second quick-release component has a first mounting cavity and a first mounting position. The first mounting position is located outside the first mounting cavity and is connected to the quick-release limiting component. The first mounting part is connected to the first mounting cavity and is limited by the quick-release limiting component.

[0006] Furthermore, the first mounting part is provided with a first limiting hole, and the second quick-release component is provided with a second limiting hole that extends into the first mounting cavity. The quick-release limiting component is connected to the first limiting hole and the second limiting hole for limiting.

[0007] Furthermore, the quick-release limiting component includes a quick-release limiting component body, a quick-release limiting pin for engaging with the first limiting hole and the second limiting hole, and a reset component for resetting the first limiting hole. The quick-release limiting component body is provided with a second mounting cavity, and the quick-release limiting pin and the reset component are elastically connected in the second mounting cavity.

[0008] Furthermore, the quick-release limiting pin includes a pin body, a first pin limiting part for moving the pin body, and a second pin limiting part for elastic connection of the reset member; along the length direction of the pin body, the first pin limiting part and the second pin limiting part are disposed opposite to each other on the pin body for limiting; the pin body can move relative to the second mounting cavity and extend out of the second mounting cavity.

[0009] Furthermore, the quick-release limiting component body is provided with a rotation limiting part at one end near the first mounting position; the rotation limiting part abuts against the second quick-release component to limit the quick-release limiting component body.

[0010] Furthermore, the quick-release limiting component body includes a first limiting shell and a second limiting shell, the first limiting shell and the second limiting shell being connected to form the second mounting cavity.

[0011] Furthermore, the second quick-release component includes a first support base connected to the first quick-release component and a second support base connected to the rear wheel structure. The first mounting cavity, the first mounting position, and the second limiting hole are provided on the first support base. The second support base is provided with a second mounting cavity, and the first support base is connected to the second mounting cavity.

[0012] Furthermore, the second support base is also provided with a first connecting hole for connecting the rear wheel structure, the first connecting hole passing through the second mounting cavity.

[0013] Furthermore, the first quick-release component is also provided with a third mounting base for connecting to the chassis, and the first mounting part is located at one end of the third mounting base near the second quick-release component.

[0014] This utility model provides a children's stroller, including a quick-release structure, a chassis, a front wheel structure, and a rear wheel structure as described above. The front wheel structure and the rear wheel structure are connected to each other on both sides of the chassis, and the rear wheel structure is detachably connected to the chassis through the quick-release structure.

[0015] This utility model adopts a quick-release structure design without threaded connection. By disassembling the quick-release limiting piece, the first quick-release piece can be detached from the first mounting cavity of the second quick-release piece. This allows parents to quickly disassemble and assemble the rear wheel structure and chassis with one hand using the quick-release limiting piece, without tools, saving time and effort. This improves the convenience of disassembling the chassis and rear wheel structure and enhances the reliability during use. At the same time, placing the first mounting position on the outside of the first mounting cavity improves the convenience of installing the quick-release limiting piece and enhances the compactness of the overall quick-release structure, making it easy to store and maintain, thus improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the quick-release structure of this utility model installed on the rotating shaft; Figure 2 It corresponds Figure 1 A structural diagram from another direction; Figure 3 This is an exploded view of the quick-release structure of this utility model mounted on a rotating shaft according to an embodiment; Figure 4 It corresponds Figure 3 Enlarged view of the A-section structure; Figure 5 It corresponds Figure 3 A structural diagram from another direction; Figure 6 It corresponds Figure 5 Enlarged view of the structure of section B; Figure 7 It corresponds Figure 5 A structural diagram from another direction; Figure 8 It corresponds Figure 7 Enlarged view of the C-section structure; Figure 9 This is an exploded view of the quick-release limiting component according to an embodiment of this utility model; Figure 10 It corresponds Figure 9 A structural diagram from another direction; Figure 11 This is a structural schematic diagram of a children's stroller according to an embodiment of this utility model.

[0018] Figure label: 1. Quick-release structure; 11. First quick-release component; 111. First mounting part; 1111. First limiting hole; 112. Third mounting base; 1121. Fastening mounting position; 12. Second quick-release component; 121. Buffer spring; 122. First support base; 1221. First mounting cavity; 1222. First mounting position; 1223. Second limiting hole; 123. Second support base; 1231. Second mounting cavity; 1232. First connecting... 13. Connecting hole; 131. Quick-release limiting component; 1312. Quick-release limiting component body; 1313. Rotation limiting part; 1314. First limiting housing; 1315. Second limiting housing; 1316. First limiting through hole; 1317. First limiting protrusion; 132. Quick-release limiting pin; 1321. Pin body; 1322. First pin limiting part; 1323. Second pin limiting part; 1324. Limiting inclined surface; 133. Reset component; 2. Chassis; 3. Front wheel structure; 4. Rear wheel structure; 41. Rear wheel; 42. Rotating shaft. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Reference Figures 1-11This utility model provides a quick-release structure for a stroller, comprising: a first quick-release component 11, a second quick-release component 12, and a quick-release limiting component 13. The first quick-release component 11 is used to connect to the chassis 2 of the stroller, the second quick-release component 12 is used to connect to the rear wheel structure 4 of the stroller, and the quick-release limiting component 13 is used to limit the first quick-release component 11. The first quick-release component 11 has a first mounting portion 111, and the second quick-release component 12 has a first mounting cavity 1221 and a first mounting position 1222. The first mounting position 1222 is located outside the first mounting cavity 1221 and is connected to the quick-release limiting component 13. The first mounting portion 111 is connected to the first mounting cavity 1221 and is limited by the quick-release limiting component 13.

[0022] In this embodiment of the utility model, by designing the first mounting cavity 1221 and the first mounting part 111, when the first quick-release member 11 is connected to the chassis 2 and the second quick-release member 12 is connected to the rear wheel structure 4, the first mounting part 111 is connected to the first mounting cavity 1221. Then, by the quick-release limiting member 13 connected to the first mounting position 1222, the first mounting part 111 is fastened in the first mounting cavity 1221. By installing or removing the second quick-release member 12, the first mounting part 111 can be fastened or detached from the first mounting cavity 1221. This allows parents to disassemble the device with one hand during use without any tools, thus improving the convenience of disassembling the chassis 2 and the rear wheel structure 4 and enhancing the reliability during use. At the same time, by setting the first mounting position 1222 on the outside of the first mounting cavity 1221, the convenience of installing the quick-release limiting member and the compactness of the overall quick-release structure are improved, making it easy to store and maintain, and enhancing the user experience.

[0023] Specifically, the first mounting part 111 is provided with a first limiting hole 1111, the second quick-release member 12 is provided with a second limiting hole 1223 that extends into the first mounting cavity 1221, and the quick-release limiting member 13 is connected to the first limiting hole 1111 and the second limiting hole 1223 for limiting.

[0024] In this embodiment of the utility model, the connection between the first mounting part 111 and the first mounting cavity 1221 is a snap-fit ​​structure design, and the first limiting hole 1111 and the second limiting hole 1223 are correspondingly set. When the first mounting part 111 is snapped into the first mounting cavity 1221, the first limiting hole 1111 and the second limiting hole 1223 are aligned so that the quick-release limiting member 13 can be inserted at the same time, thereby improving the accuracy of the quick-release limiting member 13 in limiting. At the same time, through the structure design of double hole coaxial positioning, the reliability of the quick-release limiting member 13 in limiting is significantly improved, effectively preventing the stroller from becoming abnormally loose or falling off when bumping or braking suddenly, thereby improving the safety and stability of the whole vehicle.

[0025] Furthermore, the quick-release limiting member 13 includes a quick-release limiting member body 131, a quick-release limiting pin 132 for engaging with the first limiting hole 1111 and the second limiting hole 1223, and a reset member 133 for resetting the first limiting hole 1111. The quick-release limiting member body 131 is provided with a second mounting cavity, and the quick-release limiting pin 132 and the reset member 133 are elastically connected in the second mounting cavity.

[0026] In this embodiment of the present invention, the quick-release limiting member body 131 is provided with a first limiting through hole 1315 penetrating both sides of the quick-release limiting member body 131. The first limiting through hole 1315 connects the second mounting cavity with the outside, so that the quick-release limiting pin 132 can move relative to the first limiting through hole 1315. Furthermore, the quick-release limiting pin 132 is provided with a limiting inclined surface 1324 facing the direction in which it is inserted into the first mounting part 111. During the process of the first mounting part 111 being inserted into the first mounting cavity 1221, the quick-release limiting pin 132 first passes through the second limiting hole. 1223, when the first mounting part 111 abuts against the limiting inclined surface 1324 and the first mounting part 111 moves along the slope direction of the limiting inclined surface 1324, the quick-release limiting pin 132 moves away from the first mounting part 111 and squeezes the reset member 133 to accumulate elastic potential energy; when the first limiting hole 1111 is aligned with the second limiting hole 1223, the quick-release limiting pin 132 automatically enters the first limiting hole 1111 to achieve fastening of the first mounting part 111 and improve the convenience of limiting the quick-release limiting pin 132.

[0027] The reset member 133 is an elastic member. In this embodiment of the present invention, it is preferably a spring to improve the ease of installation of the reset member 133.

[0028] Furthermore, the quick-release limiting pin 132 includes a pin body 1321 for engaging with the first limiting hole 1111 and the second limiting hole 1223, a first pin limiting part 1322 for moving the pin body 1321, and a second pin limiting part 1323 for elastic connection with the reset member 133; along the length direction of the pin body 1321, the first pin limiting part 1322 and the second pin limiting part 1323 are disposed opposite to each other on the pin body 1321 for limiting; the pin body 1321 can move relative to the second mounting cavity and extend out of the second mounting cavity.

[0029] In this embodiment of the utility model, the pin body 1321, the first pin limiting part 1322, and the second pin limiting part 1323 are integrally formed to enhance the stability of the quick-release limiting pin 132. The first pin limiting part 1322 is located outside the first limiting through hole 1315. When the rear wheel structure 4 needs to be disassembled, the parent only needs to pull the first pin limiting part 1322 away from the first limiting through hole 1315 to disassemble the pin body 1321 from the first limiting hole 1111 with one hand, so as to disassemble the first quick-release piece 11 from the second quick-release piece 12. The second pin limiting part 1323 is located in the second mounting cavity. One end of the second pin limiting part 1323 is used for the reset piece 133 to abut, and the other end can abut against the inner wall of the second mounting cavity to limit the maximum outward extension of the pin body 1321.

[0030] Furthermore, the quick-release limiting member body 131 is provided with a rotation limiting part 1312 at one end near the first mounting position 1222; the rotation limiting part 1312 abuts against the second quick-release member 12 to limit the quick-release limiting member body 131.

[0031] In this embodiment of the present invention, the first mounting position 1222 is designed as a slot structure, and the contact surfaces of the quick-release limiting member body 131 and the first mounting position 1222 are both planar to enhance the stability of the quick-release limiting member body 131. The quick-release limiting member body 131 is preferably connected to the first mounting position 1222 by bolt connection. By providing the rotation limiting part 1312, the quick-release limiting member body 131 can be effectively prevented from rotating around the bolt, so that the rotation limiting part 1312 abuts against the second quick-release member 12, thereby making the quick-release limiting member body 131 tightly abut against the second limiting hole 1223, enhancing the stability of the quick-release limiting member 13.

[0032] Furthermore, the quick-release limiting component body 131 includes a first limiting shell 1313 and a second limiting shell 1314, with the first limiting shell 1313 and the second limiting shell 1314 connected to form the second mounting cavity.

[0033] In this embodiment of the present invention, the first limiting housing 1313 and the second limiting housing 1314 adopt a symmetrical structural design. Both the first limiting housing 1313 and the second limiting housing 1314 are provided with a first limiting protrusion 1316 along the relative movement direction parallel to the pin body 1321. The first limiting protrusion 1316 on the first limiting housing 1313 and the second limiting housing 1314 abut against each other to form a joint limiting part. This joint limiting part can ensure the stable extension or retraction of the pin body 1321 and improve the smoothness of the movement of the pin body 1321. At the same time, the joint limiting part separates the second mounting cavity, which helps to ensure the reliability of the reset member 133 and the quick-release limiting member body 131 during operation.

[0034] Furthermore, the second quick-release component 12 includes a first support base 122 connected to the first quick-release component 11 and a second support base 123 connected to the rear wheel structure 4. The first mounting cavity 1221, the first mounting position 1222, and the second limiting hole 1223 are provided on the first support base 122. The second support base 123 is provided with a second mounting cavity 1231, and the first support base 122 is connected to the second mounting cavity 1231.

[0035] In this embodiment of the present invention, the second quick-release component 12 is further provided with a buffer spring 121 between the first support base 122 and the second support base 123. One end of the buffer spring 121 is connected to the first support base 122, and the other end of the buffer spring 121 is connected to the second support base 123, so that when the first support base 122 is impacted, the buffer spring 121 can be squeezed by the first support base 122 to reduce the impact force generated, thereby enhancing the structural stability of the second quick-release component 12.

[0036] Furthermore, the second support 123 is also provided with a first connecting hole 1232 for connecting the rear wheel structure 4, the first connecting hole 1232 passing through the second mounting cavity 1231.

[0037] In this embodiment of the present invention, the second support base 123 is fixedly connected to the rear wheel structure 4 through the first connecting hole 1232 to ensure the stability of the second quick-release piece 12 during use.

[0038] Furthermore, the first quick-release component 11 is also provided with a third mounting base 112 for connecting to the chassis 2, and the first mounting part 111 is located at one end of the third mounting base 112 near the second quick-release component 12.

[0039] In this embodiment of the present invention, the first mounting part 111 is disposed at one end of the third mounting base 112, so as to limit the maximum insertion depth of the first mounting part 111 by the third mounting base 112, thereby enhancing the stability of the quick-release structure connection.

[0040] Preferably, the third mounting base 112 is provided with a plurality of fastening mounting positions 1121 on the other side opposite to the first mounting part 111, and the chassis 2 is pre-installed on the third mounting base 112 through the plurality of fastening mounting positions 1121 to improve the installation and disassembly efficiency of the stroller; and the first limiting holes 1111 are provided on both sides of the first mounting part 111 to enhance the adaptability of the first mounting part 111 to the chassis 2.

[0041] This utility model embodiment also provides a children's stroller, including a quick-release structure 1, a chassis 2, a front wheel structure 3, and a rear wheel structure 4 as described above. The front wheel structure 3 and the rear wheel structure 4 are connected opposite to each other on both sides of the chassis 2 for support. The rear wheel structure 4 and the chassis 2 are detachably connected through the quick-release structure 1.

[0042] In this embodiment of the utility model, the rear wheel structure 4 is provided with a rear wheel 41 and a rotating shaft 42. The two rear wheels 41 are arranged opposite each other on both sides of the rotating shaft 42, and the second support seat 123 is connected to the rotating shaft 42 through the first connecting hole 1232 to improve the convenience of installing and disassembling the second support seat 123. The chassis 2 is connected to the third mounting seat 112 through multiple fastening mounting positions 1121 to improve the convenience of maintaining the stroller through the detachable structural design.

[0043] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A quick-release structure for use in a children's stroller, characterized in that, include: The first quick-release piece (11) is used to connect the chassis of the stroller; The second quick-release piece (12) is used to connect the rear wheel structure of the stroller; Quick-release limiting member (13), the quick-release limiting member (13) is used to limit the first quick-release member (11); The first quick-release component (11) is provided with a first mounting part (111), and the second quick-release component (12) is provided with a first mounting cavity (1221) and a first mounting position (1222). The first mounting position (1222) is located outside the first mounting cavity (1221) and is connected to the quick-release limiting component (13). The first mounting part (111) is connected to the first mounting cavity (1221) and is limited by the quick-release limiting component (13).

2. The quick-release structure for a children's stroller according to claim 1, characterized in that, The first mounting part (111) is provided with a first limiting hole (1111), and the second quick-release part (12) is provided with a second limiting hole (1223) that extends into the first mounting cavity (1221). The quick-release limiting part (13) is connected to the first limiting hole (1111) and the second limiting hole (1223) for limiting.

3. The quick-release structure for a children's stroller according to claim 2, characterized in that, The quick-release limiting component (13) includes a quick-release limiting component body (131), a quick-release limiting pin (132) for engaging the first limiting hole (1111) and the second limiting hole (1223), and a reset component (133) for resetting the first limiting hole (1111). The quick-release limiting component body (131) is provided with a second mounting cavity, and the quick-release limiting pin (132) and the reset component (133) are elastically connected in the second mounting cavity.

4. The quick-release structure for a children's stroller according to claim 3, characterized in that, The quick-release limiting pin (132) includes a pin body (1321), a first pin limiting part (1322) for moving the pin body (1321), and a second pin limiting part (1323) for elastic connection with the reset member (133); along the length direction of the pin body (1321), the first pin limiting part (1322) and the second pin limiting part (1323) are disposed opposite to each other on the pin body (1321) to limit the movement; the pin body (1321) can move relative to the second mounting cavity and extend out of the second mounting cavity.

5. A quick-release structure for a children's stroller according to claim 4, characterized in that, The quick-release limiting component body (131) is further provided with a rotation limiting part (1312) at one end near the first mounting position (1222); the rotation limiting part (1312) abuts against the second quick-release component (12) to limit the quick-release limiting component body (131).

6. A quick-release structure for a children's stroller according to claim 3, characterized in that, The quick-release limiting component body (131) includes a first limiting shell (1313) and a second limiting shell (1314), and the first limiting shell (1313) and the second limiting shell (1314) are connected to form the second mounting cavity.

7. The quick-release structure for a children's stroller according to claim 1, characterized in that, The second quick-release component (12) includes a first support base (122) connected to the first quick-release component (11) and a second support base (123) connected to the rear wheel structure. The first mounting cavity (1221), the first mounting position (1222), and the second limiting hole (1223) are provided on the first support base (122). The second support base (123) is provided with a second mounting cavity (1231). The first support base (122) is connected in the second mounting cavity (1231).

8. A quick-release structure for a children's stroller according to claim 7, characterized in that, The second support (123) is also provided with a first connecting hole (1232) for connecting the rear wheel structure, and the first connecting hole (1232) passes through the second mounting cavity (1231).

9. A quick-release structure for a children's stroller according to claim 1, characterized in that, The first quick-release component (11) is also provided with a third mounting base (112) for connecting to the chassis, and the first mounting part (111) is located at one end of the third mounting base (112) near the second quick-release component (12).

10. A stroller, comprising a quick-release structure (1) for use in a stroller as described in any one of claims 1-9, a chassis (2), a front wheel structure (3), and a rear wheel structure (4), wherein the front wheel structure (3) and the rear wheel structure (4) are connected opposite to each other on both sides of the chassis (2), and the rear wheel structure (4) and the chassis (2) are detachably connected via the quick-release structure (1).

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