A child's vehicle which is easy to assemble

Abstract

This utility model discloses a child stroller that is easy to assemble, which facilitates assembly and prevents accidental unlocking of the locking mechanism. The stroller features a handle assembly connected to a connecting tube via an unlockable locking mechanism, or the connecting tube connected to a base via the same mechanism. The locking mechanism includes a resilient locking head and a locking pin mating part. The resilient locking head is mounted on the connecting tube, which has a hole for the head of the resilient locking head to extend out. The locking pin mating part includes an inner wall and an outer wall. The inner wall forms an assembly cavity for the end of the connecting tube to be inserted, and a channel for the head of the resilient locking head to extend into it. The outer wall is connected to the inner wall, and a button is provided on the outer wall. Most of the button's edge is separated from the outer wall, while a portion of the button is connected to it. The button is formed on the outer wall and can elastically deform to press and activate the head of the resilient locking head.

Description

Technical Field

[0001] This utility model belongs to the technical field of children's vehicles, specifically relating to a children's vehicle that is easy to assemble. Background Technology

[0002] A children's bicycle is a small, non-powered vehicle designed for toddlers to ride. For example, Chinese invention patent application CN106627910A, published on May 10, 2017, discloses a children's balance scooter, including a frame. A support tube is welded to the front end of the frame, and a support rod is installed inside the support tube. A handlebar is welded to the upper end of the support rod, and a bushing is welded to the lower end of the support rod. A connecting shaft passes through the bushing. A left front wheel is located at the left end of the connecting shaft, and a right front wheel is located at the right end of the connecting shaft; the left and right front wheels are symmetrically arranged. A left and right rear wheel are located at the rear end of the frame, symmetrically arranged. A protruding rod is integrally formed in the middle of the frame, and a seat is detachably mounted on the upper end of the protruding rod. In this children's design, the support rod is mounted to the support tube via a bearing structure. Typically, assembling the support rod into the support tube is relatively complex and difficult; therefore, the support rod is not disassembled before transportation. In this type of children's stroller design, the height between the handlebars and the front wheels is the highest part of the entire stroller. As a result, the stroller has a larger volume for delivery and transportation, which correspondingly increases transportation costs. Utility Model Content

[0003] The purpose of this invention is to provide a children's stroller that is easy to assemble, which on the one hand facilitates the assembly of the stroller, and on the other hand prevents the locking mechanism from being accidentally activated and unlocked.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A child stroller that is easy to assemble includes a handlebar assembly, a connecting tube, a base, a front axle, a front wheel, and a frame. The connecting tube passes through the front end of the frame. The handlebar assembly is connected to the base via the connecting tube. The front axle is mounted on the base, and the front wheel is mounted on the front axle. The stroller is characterized in that: the handlebar assembly is connected to the connecting tube via an unlockable locking pin structure, or the connecting tube is connected to the base via an unlockable locking pin structure. The locking pin structure includes a resilient locking head and a locking pin mating part. The resilient locking head is installed on the connecting tube. The connecting tube has a hole structure for the head of the resilient locking head to protrude. The locking pin mating part includes an inner wall and an outer wall. The inner wall forms an assembly cavity for the end of the connecting tube to be inserted. A channel for the head of the resilient locking head to extend into the inner wall is provided on the inner wall. The outer wall is connected to the inner wall. A button is provided on the outer wall. Most of the edge of the button is separated from the outer wall, and a portion of the button is connected to the outer wall. The button is formed on the outer wall and can elastically deform to press and actuate the head of the resilient locking head.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the elastic lock head is located at the lower end of the connecting tube, and the locking pin mating part is located at the upper part of the base.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the lower end of the connecting pipe is provided with a first limiting groove, and the bottom of the assembly cavity is provided with a first limiting block for inserting into the first limiting groove.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the front end of the frame is supported above the base, and the base is rotatable relative to the front end of the frame. The outer wall has a first platform portion, which is a ring structure. The base is provided with a first positioning head, which is coaxially arranged with the first platform portion. The front end of the frame is provided with a first shoulder portion, which is formed at the front end of the frame. The first platform portion and the first shoulder portion form a surface contact. The first shoulder portion is provided with a first mounting cavity for the first positioning head to be inserted.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the first mounting cavity includes a circular arc face and an irregular arc face, the circular arc face and the irregular arc face surround the first mounting cavity, the root of the irregular arc face is circular arc, the distance from the irregular arc face to the connecting pipe gradually decreases from the rear to the side, and the distance from the irregular arc face to the connecting pipe gradually decreases from the bottom to the top.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the width of the first limiting block gradually decreases from bottom to top and / or the width of the first limiting groove gradually decreases from bottom to top.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the first limiting block is disposed on the left and / or right side of the assembly cavity.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: a second limiting block is provided in the first mounting cavity, and the first positioning head is provided with a groove structure. The groove structure extends along the circumference of the first positioning head, and the two sides of the second limiting block are abutted by the two side walls of the groove structure to restrict the base from rotating within a predetermined angle.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the handle assembly is provided with a second platform portion, the second platform portion is in the form of a ring structure, the handle assembly is provided with a second positioning head, the second positioning head is coaxially arranged with the second platform portion, the front end of the frame is provided with a second shoulder portion, the second platform portion and the second shoulder portion form a surface contact, the second shoulder portion is provided with a second mounting cavity, the second mounting cavity is for the second positioning head to be inserted.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: a rib plate is also provided between the inner wall and the outer wall, the rib plate is located on the outside of the assembly cavity, and a number of circumferentially distributed ribs are provided in the assembly cavity along the axial direction, the ribs being for contact with the connecting pipe.

[0014] The outstanding and beneficial technical effects of this utility model compared to the prior art are: This utility model of an easy-to-assemble children's stroller employs an unlockable locking pin structure. In practical application, one end of the connecting tube is connected to the handle assembly, and the other end of the connecting tube passes through the front end of the frame. The user presses the head of the elastic lock head, causing it to retract into the hole structure. At this time, the other end of the connecting tube is inserted into the assembly cavity. After the head of the elastic lock head aligns with the channel, the elastic lock head extends into the channel, preventing the connecting tube from exiting the assembly cavity, thus connecting the connecting tube and the base together. When it is necessary to disassemble the connecting tube and the base, the user presses the button, causing the button to deform towards the head of the elastic lock head. The button touches the head of the elastic lock head, causing it to exit the channel. At this time, the connecting tube can be pulled out from the assembly cavity, realizing convenient assembly and disassembly of the connecting tube and the base. On the other hand, since the outer surface of the button is flush with the outer surface of the outer wall, the button does not protrude relative to the outer wall, thus the button is not easily accidentally pressed, causing the locking pin structure to unlock. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an exploded structural diagram of the present invention.

[0017] Figure 3 This is a partial sectional view of the present invention.

[0018] Figure 4 This is a cross-sectional view of part of the structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the bottom structure of the front end of the frame of this utility model.

[0020] Figure 6 This is a structural schematic diagram of the base of this utility model.

[0021] In the diagram, 1. Handle assembly; 2. Connecting pipe; 3. Base; 4. Front axle; 5. Front wheel; 6. Frame; 7. Front end of frame; 8. Elastic lock head; 9. Lock pin mating part; 10. Hole structure; 11. Head of elastic lock head; 12. Spring arm; 13. Inner wall; 14. Outer wall; 15. Assembly cavity; 16. Channel; 17. Upper wall; 18. Lower wall; 19. Button; 20. Protruding rib; 21. First limiting groove; 22. First limiting block; 23. First platform part; 24. First positioning head; 25. First shoulder part; 26. First mounting cavity; 27. Second platform part; 28. Second positioning head; 29. ​​Second shoulder part; 30. Arc-shaped surface part; 31. Irregular arc-shaped surface part; 32. Root of irregular arc-shaped surface part; 33. Second limiting block; 34. Groove structure; 35. Rib plate; 36. Through groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the given embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0025] This utility model discloses a children's vehicle that is easy to assemble, including a handle assembly 1, a connecting tube 2, a base 3, a front wheel axle 4, a front wheel 5, and a frame 6.

[0026] As shown in the figure, the front axle 4 is mounted on the base 3, and the front wheel 5 is mounted on the front axle 4. In this invention, the front axle 4 and the base 3 are sleeved together, and the two can rotate relative to each other; the front wheel 5 is sleeved on the front axle 4, and the two can rotate relative to each other. In another embodiment, the front axle 4 is fixed relative to the base 3, and the front wheel 5 is rotatable relative to the front axle 4; or the front axle 4 is rotatable relative to the base 3, or the front wheel 5 is fixed relative to the front axle 4. With the above structure, during the child's riding of the children's bicycle, the front wheel 5 is rotatable relative to the base 3, thereby enabling the children's bicycle to glide.

[0027] In this embodiment, the connecting tube 2 passes through the front end 7 of the frame, and the handle assembly 1 is connected to the base 3 via the connecting tube 2. The connecting tube 2 is connected to the base 3 through an unlockable locking pin structure. As shown in the figure, the locking pin structure detachably connects the connecting tube 2 and the base 3 together. When the locking pin structure is unlocked, the connecting tube 2 and the base 3 can be separated.

[0028] In this invention, the locking pin structure includes a resilient locking head 8 and a locking pin mating part 9. After the locking pin structure is unlocked, the resilient locking head 8 and the locking pin mating part 9 can be separated, thereby allowing the connecting tube 2 and the base 3 to be disassembled.

[0029] In this invention, a locking pin structure is used to connect the base 3 and the connecting pipe 2. Correspondingly, the locking pin structure is located at the lower part of the connecting pipe 2. Specifically, the elastic locking head 8 is disposed at the lower end of the connecting pipe 2, and the locking pin mating part 9 is disposed at the upper part of the base 3. In this embodiment, the locking pin mating part 9 is formed on the base 3. As shown in the figure, the elastic locking head 8 is installed on the connecting pipe 2, and the connecting pipe 2 is provided with a hole structure 10 for the head 11 of the elastic locking head to extend out. The elastic locking head 8 has a spring arm 12, which is typically a bent metal sheet. The elasticity of the spring arm 12 allows the elastic locking head 8 to be in an extended state. As shown in the figure, the locking pin mating part 9 includes an inner wall 13 and an outer wall 14. The inner wall 13 encloses an assembly cavity 15 for the end of the connecting pipe 2 to be inserted, and a channel 16 is provided on the inner wall 13 for the head 11 of the elastic locking head to extend into. In this embodiment, the inner wall 13 has an upper wall 17 and a lower wall 18. The upper wall 17 has a circular cross-section in the direction perpendicular to its axis. The upper wall 17 serves as the inner wall 13 structure in the locking pin mating part 9. The lower arm also has a circular cross-section in the direction perpendicular to its axis. Typically, the outer diameter of the upper wall 17 is larger than the lower diameter of the lower wall 18, as shown in the figure. The channel 16 extends down to the lower end of the upper wall 17, which facilitates the molding of the channel 16 using an injection molding process. The height of the channel 16 in the axial direction of the inner wall 13 is greater than the head 11 of the elastic lock head. After the button 19 is deformed by force, the portion of the channel 16 located below the head 11 of the elastic lock head can accommodate part of the button 19, allowing the button 19 to fully contact the head 11 of the elastic lock head and thus exit the channel 16.

[0030] As shown in the figure, the outer wall 14 and the inner wall 13 are connected, and typically, the outer wall 14 and the inner wall 13 are integrally formed. The button 19 is formed on the outer wall 14, and the button 19 can undergo elastic deformation to press and actuate the head 11 of the elastic lock. In this embodiment, the button 19 is provided on the outer wall 14, most of the edge of the button 19 is separated from the outer wall 14, and a portion of the button 19 is connected to the outer wall 14. Since most of the button 19 is separated from the outer wall 14, and only a portion of the button 19 is connected to the outer wall 14, the button is constructed to have elastic deformation capability. The button 19 actuates the elastic lock 8 only after it undergoes elastic deformation. It can be understood that when the button 19 is not pressed by the user, the button 19 maintains its initial shape and does not deform. Therefore, part of the button 19 will not pass through the channel 16 into the assembly cavity 15, and the connecting tube 2 will not be interfered with by the button 19 during insertion into the assembly cavity 15, allowing the connecting tube 2 to be smoothly inserted into the bottom of the assembly cavity 15.

[0031] This utility model of an easy-to-assemble children's stroller adopts an unlockable locking pin structure, enabling convenient assembly. In practical application, one end of the connecting tube 2 is connected to the handle assembly 1, and the other end of the connecting tube 2 is passed through the front end 7 of the frame. The user presses the head 11 of the elastic lock head, causing it to retract into the hole structure 10. At this time, the other end of the connecting tube 2 is inserted into the assembly cavity 15. After the head 11 of the elastic lock head aligns with the channel 16, the elastic lock head 8 extends into the channel 16. Under the action of the elastic lock head 8, the connecting tube 2 is prevented from exiting from the assembly cavity 15, thereby connecting the connecting tube 2 and the base 3 together. When it is necessary to disassemble the connecting tube 2 and the base 3, the user presses the button 19, causing the button 19 to deform towards the head 11 of the elastic lock head. The button 19 touches the head 11 of the elastic lock head, causing the head 11 of the elastic lock head to exit the channel 16. At this time, the connecting tube 2 can be pulled out from the assembly cavity 15, realizing convenient assembly and disassembly of the connecting tube 2 and the base 3.

[0032] As shown in the figure, several circumferentially distributed protruding ribs 20 are arranged along the axial direction inside the assembly cavity 15, and the protruding ribs 20 provide contact for the connecting tube 2. The structure of the protruding ribs 20 ensures that there is a certain distance between the connecting tube 2 and the inner wall 13, so that the head 11 of the elastic lock head does not need to be fully retracted into the hole structure 10 before the connecting tube 2 is inserted into the assembly cavity 15, which facilitates the insertion of the connecting tube 2 into the assembly cavity 15.

[0033] In this embodiment, the lower end of the connecting pipe 2 is provided with a first limiting groove 21, and the bottom of the assembly cavity 15 is provided with a first limiting block 22 for insertion and mating with the first limiting groove 21. The structure of the first limiting block 22 and the first limiting groove 21 allows the connecting pipe 2 to transmit torque to the base 3. With this structure, the cross-sections of the connecting pipe 2 and the assembly cavity 15 can be circular, so that in the initial stage of inserting the connecting pipe 2 into the assembly cavity 15, it is not necessary to correct their circumferential positions. From this perspective, it also facilitates the assembly of the connecting pipe 2 into the assembly cavity 15. Preferably, the head 11 of the elastic lock head has a spherical structure, and its height is less than the distance the rib extends towards the axis of the assembly cavity 15. In one embodiment, the first limiting block 22 is located on the left and / or right side of the assembly cavity 15. It should be noted that in the description of this embodiment, left and right are defined as the side of the handle assembly 1 for the user's hand to grip, and the other side is defined as right.

[0034] Typically, the width of the first limiting block 22 gradually decreases from bottom to top, and the width of the first limiting groove 21 also gradually decreases from bottom to top. In another embodiment, only the width of the first limiting block 22 may gradually decrease from bottom to top. This gradual decrease in width from bottom to top facilitates the entry of the first limiting block 22 into the first limiting groove 21.

[0035] In this embodiment, the front end 7 of the frame is supported above the base 3, and the base 3 is rotatable relative to the front end 7 of the frame. The outer wall 14 has a first platform portion 23, which has a ring structure. The base 3 is provided with a first positioning head 24, which is coaxially arranged with the first platform portion 23. The front end 7 of the frame is provided with a first shoulder portion 25, which is an integral structure with the front end 7 of the frame. The first platform portion 23 and the first shoulder portion 25 form a surface contact. A first mounting cavity 26 is provided inside the first shoulder portion 25 for the first positioning head 24 to be inserted. In this utility model, the first platform portion 23 is rotatable relative to the first shoulder portion 25, and the first shoulder portion 25 is in contact with the first platform portion 23, and the two form a surface contact. Therefore, it is not necessary to provide a separate ball bearing. Similarly, as shown in the figure, the handle assembly 1 is provided with a second platform portion 27, which has a circular structure. A second positioning head 28 is provided on the handle assembly 1, and the second positioning head 28 is coaxially arranged with the second platform portion 27. The front end 7 of the frame is provided with a second shoulder portion 29. The second platform portion 27 and the second shoulder portion 29 form a surface contact. A second mounting cavity is provided within the second shoulder portion 29 for the insertion of the second positioning head 28. In this embodiment, the connecting tube 2 passes integrally through the front end 7 of the frame. Using the above structure, the connecting tube 2 does not need to be connected to the front end 7 of the frame via a bearing structure. Furthermore, after unlocking the locking pin structure, the connecting tube 2 can be pulled out from the front end 7 of the frame, completing the disassembly of the connecting tube 2 from the front end 7 of the frame. After disassembly, the children's stroller can be packaged and transported in a smaller volume.

[0036] In this embodiment, a through groove 33 is provided on the first shoulder 25 and the mounting cavity 26. When the connecting tube 2 passes through the front end 7 of the frame, the through groove 33 allows the head 11 of the elastic lock to pass through. Thus, when the connecting tube 2 passes through the front end 7 of the frame, the user does not need to press the head 11 of the elastic lock separately, which obviously achieves convenient installation.

[0037] As shown in the figure, the first mounting cavity 26 includes a circular arc surface 30 and an irregular arc surface 31, which surround the first mounting cavity 26. The root 32 of the irregular arc surface is circular. In this embodiment, the distances from the circular arc surface 30 and the root 32 of the irregular arc surface to the connecting pipe 2 are the same or very close. The distance from the irregular arc surface 31 to the connecting pipe 2 gradually decreases from the rear to the side, and the distance from the irregular arc surface 31 to the connecting pipe 2 gradually decreases from the bottom to the top. In the first mounting cavity 26 with this irregular structure, when the first positioning head 24 is initially inserted into the first mounting cavity 26, the inner diameter of the first mounting cavity 26 in the front-back direction is significantly larger than the diameter of the first positioning head 24 in the front-back direction. The first positioning head 24 can swing back and forth within the first mounting cavity 26. That is, the base 3 can be wobbled relative to the connecting pipe 2 in the front-back direction. This allows the base 3 to be gradually pushed into the connecting pipe 2 by back-and-forth wobbling, overcoming the first limiting groove 21 of the connecting pipe 2 from being stuck in the first limiting block 22, making it easier to assemble the base 3 and the connecting pipe 2. After assembly, because the root 32 of the irregular arc-shaped surface is arc-shaped, it, together with the arc-shaped surface 30, positions the first positioning head 24, thus ensuring stable installation of the base 3. It should be noted that in the description of this embodiment, the front-back direction refers to the direction in which the front wheel 5 (the wheel mounted on the front axle 4) is forward, and the installation position of the rear wheel is backward.

[0038] As shown in the figure, a second limiting block 33 is provided in the first mounting cavity, and a groove structure 34 is provided in the first positioning head 24. The groove structure 34 extends circumferentially along the positioning head. The two sides of the second limiting block 33 are used to abut against the two side walls of the groove structure 34, thereby restricting the base 3 from rotating within a predetermined angle. By cooperating with the second limiting block 33 and the groove structure 34, the rotation range of the handle assembly 1 can be limited, making the use of the stroller safer.

[0039] In this embodiment, a rib 35 is also provided between the inner wall 13 and the outer wall 14, and the rib 35 is located on the outer side of the assembly cavity 15. Since the locking pin mating part 9 forms a structure with two layers of walls, and a rib 35 is also provided, the strength of the base 3 is obviously further enhanced.

[0040] In another embodiment of the stroller, the stroller is essentially the same as that of the above-described embodiment, except that in this embodiment, the handle assembly is connected to the connecting tube 2 via an unlockable locking pin structure. Specifically, the locking pin structure detachably connects the upper end of the connecting tube 2 and the handle assembly 1 together. When the locking pin structure is unlocked, the connecting tube 2 and the handle assembly 1 can be separated, and the lower end of the connecting tube 2 is connected to the base 3. In this embodiment, the unlockable locking pin structure is the same as that of the above-described embodiment, and will not be described again here.

[0041] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A child stroller that is easy to assemble, comprising a handlebar assembly, a connecting tube, a base, a front axle, a front wheel, and a frame, wherein the connecting tube passes through the front end of the frame, the handlebar assembly is connected to the base via the connecting tube, the front axle is mounted on the base, and the front wheel is mounted on the front axle, characterized in that: The handle assembly is connected to the connecting tube via an unlockable locking pin structure, or the connecting tube is connected to the base via an unlockable locking pin structure. The locking pin structure includes a resilient locking head and a locking pin mating part. The resilient locking head is installed on the connecting tube, which has a hole structure for the head of the resilient locking head to extend out. The locking pin mating part includes an inner wall and an outer wall. The inner wall forms an assembly cavity for the end of the connecting tube to be inserted into, and a channel for the head of the resilient locking head to extend into is provided on the inner wall. The outer wall is connected to the inner wall, and a button is provided on the outer wall. Most of the edge of the button is separated from the outer wall, and a part of the button is connected to the outer wall. The button is formed on the outer wall and can elastically deform to press and actuate the head of the resilient locking head.

2. The child stroller that is easy to assemble according to claim 1, characterized in that: The elastic lock head is located at the lower end of the connecting tube, and the locking pin mating part is located at the upper part of the base.

3. The child stroller that is easy to assemble according to claim 2, characterized in that: The lower end of the connecting pipe is provided with a first limiting groove, and the bottom of the assembly cavity is provided with a first limiting block for insertion into the first limiting groove.

4. The child stroller that is easy to assemble according to claim 2, characterized in that: The front end of the frame is supported above the base, and the base is rotatable relative to the front end of the frame. The outer wall has a first platform portion, which is a ring structure. The base is provided with a first positioning head, which is coaxially arranged with the first platform portion. The front end of the frame is provided with a first shoulder portion, which is formed at the front end of the frame. The first platform portion and the first shoulder portion form a surface contact. The first shoulder portion is provided with a first mounting cavity for the first positioning head to be inserted.

5. The child stroller that is easy to assemble according to claim 4, characterized in that: The first mounting cavity includes a circular arc facet and an irregular arc facet, which surround the first mounting cavity. The root of the irregular arc facet is circular arc-shaped. The distance from the irregular arc facet to the connecting pipe gradually decreases from the rear to the side, and the distance from the irregular arc facet to the connecting pipe gradually decreases from the bottom to the top.

6. The child stroller that is easy to assemble according to claim 3, characterized in that: The width of the first limiting block gradually decreases from bottom to top and / or the width of the first limiting groove gradually decreases from bottom to top.

7. The child stroller that is easy to assemble according to claim 6, characterized in that: The first limiting block is located on the left and / or right side of the assembly cavity.

8. The child stroller that is easy to assemble according to claim 4, characterized in that: The first mounting cavity is provided with a second limiting block, and the first positioning head is provided with a groove structure. The groove structure extends along the circumference of the first positioning head, and the two sides of the second limiting block are abutted by the two side walls of the groove structure to restrict the base from rotating within a predetermined angle.

9. The child stroller that is easy to assemble according to claim 1, characterized in that: The handlebar assembly is provided with a second platform portion, which has a circular structure. The handlebar assembly is provided with a second positioning head, which is coaxially arranged with the second platform portion. The front end of the frame is provided with a second shoulder portion. The second platform portion and the second shoulder portion form a surface contact. The second shoulder portion is provided with a second mounting cavity for the second positioning head to be inserted.

10. The easily assembled children's stroller according to claim 1, characterized in that: A rib is also provided between the inner wall and the outer wall. The rib is located on the outside of the assembly cavity. Several circumferentially distributed ribs are provided in the assembly cavity along the axial direction. The ribs are for the connection pipe to contact.

Images