Joint structure for folding baby carriage and baby carriage
By adopting the design of triangular folding structure and locking components in the stroller, the problems of complex folding structure and high production cost of existing strollers are solved, and a simpler structural design and lower production cost are achieved.
Patent Information
- Application Number
- CN202421557969.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing strollers need to use locking structures to lock each part together, resulting in complex settings of folding structures and high production and processing costs.
The triangular folding structure is adopted to drive the upper and posterior joints to rotate and fold through the connecting rod, and lock the anterior joint and dorsal joints with locking components, simplifying the structure and production process.
The folding structure of the stroller is optimized so that it only needs to lock the anterior joint and dorsal joint when it is unfolded, reducing production and processing costs.
Smart Images
Figure CN222698543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of baby carriages, and more specifically, to a joint structure for folding a baby carriage and the baby carriage. Background Art
[0002] Baby strollers are an indispensable part of modern families. Whether going shopping in the supermarket or taking a walk in the park, they enable parents to take their babies out conveniently. At the same time, baby strollers also provide a comfortable environment for the baby's growth.
[0003] A baby stroller generally includes a front wheel assembly, a rear wheel assembly, a seat assembly, and a joint assembly. Existing baby strollers mainly use a locking structure to lock the front wheel assembly, the rear wheel assembly, the seat assembly, and the handle assembly together at the same time, and then unlock the parts with one key when folding. Since the locking structure is required to lock the parts together, the folding structure is relatively complicated to set up, resulting in high production and processing costs. Utility Model Content
[0004] The utility model provides a folding joint structure for a baby stroller and a baby stroller, aiming to solve the problem that the existing baby strollers need to use a locking structure to lock various parts together, thus making the arrangement of the folding structure more complicated and the production and processing cost higher.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint structure for folding a baby stroller, comprising a front joint, a back joint is arranged in the middle of one end of the front joint, rear joints are arranged on both sides of the front joint, the front joint, the back joint and the rear joint are rotatably connected through a central axis, upper joints are arranged on both sides of the front joint, one end of the upper joint is hinged to the rear joint, a connecting shaft 1 is rotatably connected to the upper joint, a long groove is provided at the end of the front joint away from the back joint, the connecting shaft 1 is arranged inside the long groove, and the front joint, the rear joint and the upper joint form a triangular structure; a connecting rod is arranged on the side of the back joint, one end of the connecting rod is hinged to the edge of the back joint, and the other end of the connecting rod is rotatably connected to the connecting shaft 1; a locking assembly is installed inside the back joint, and the locking assembly is used to lock the front joint and the back joint.
[0006] In a preferred embodiment, the locking assembly includes a slider, which is slidably inserted into the interior of the back joint, an elastic component is pressed onto the bottom of the slider, a clamping shaft is inserted into the slider, sliding grooves are provided on both sides of the back joint, the clamping shaft is movably arranged in the sliding grooves, arc grooves are provided on both sides of the front joint, and a limiting groove is provided at one end of the arc groove. When the clamping shaft is located inside the limiting groove, the front joint and the back joint are locked.
[0007] In a preferred embodiment, a groove is provided on the slider, a slope 1 is provided on one side of the groove, an unlocking block is movably provided at the upper end of the back joint, a slope 2 is provided at the bottom of the unlocking block, and the slope 2 is used to push the slope 1.
[0008] In a preferred embodiment, an avoidance groove is provided on the sliding block, and the front joint is movably arranged in the avoidance groove.
[0009] In a preferred embodiment, a side groove is provided on one side of the connecting rod, and when the front joint and the back joint are locked, the clamping shaft is located in the side groove.
[0010] The utility model also provides a baby carriage, comprising the above-mentioned joint structure, wherein a front wheel assembly is installed on the front joint, a push handle assembly is installed on the back joint, a rear wheel assembly is installed on the rear joint, and a seat is installed on the upper joint.
[0011] In a preferred embodiment, the push handle assembly includes a fixed rod, which is fixedly mounted on the back joint, and a movable rod is axially movably inserted into the upper end of the fixed rod, and the movable rod is used to push the unlocking block.
[0012] The beneficial effects of the utility model are:
[0013] The utility model sets a triangular folding structure. When the back joint is rotated and folded, the back joint only needs to drive the upper joint to rotate and fold through the connecting rod, and the upper joint can drive the rear joint to rotate and fold. That is, when unfolding and locking, it is only necessary to lock the front joint and the back joint, thereby optimizing the structure and reducing the production and processing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the baby carriage of the utility model after being unfolded.
[0015] Figure 2 For this utility model Figure 1 sectional view of .
[0016] Figure 3 It is a schematic diagram of the local structure of the utility model Figure 1 .
[0017] Figure 4 For this utility model Figure 3 Exploded diagram.
[0018] Figure 5 For this utility model Figure 3 sectional view of .
[0019] Figure 6 It is a schematic diagram of the local structure of the utility model Figure 2 .
[0020] Figure 7It is a schematic diagram of the local structure of the utility model Figure 3 .
[0021] Figure 8 It is a structural schematic diagram of the back joint of the utility model.
[0022] Fig. 9 For this utility model Figure 1 Schematic diagram of the local structure.
[0023] Fig.10 It is a schematic diagram of the baby stroller of the utility model after being folded.
[0024] The accompanying drawings are marked as follows: 1. middle axis; 11. front joint; 111. long groove; 112. arc groove; 113. limit groove; 12. back joint; 121. slide groove; 13. rear joint; 14. upper joint; 15. connecting axis one; 16. connecting rod; 161. side groove; 17. connecting axis two; 2. front wheel assembly; 3. push handle assembly; 31. fixed rod; 32. movable rod; 4. rear wheel assembly; 5. locking assembly; 51. slider; 52. elastic component; 53. card axis; 54. avoidance groove; 55. groove; 56. inclined plane one; 6. unlocking block; 61. inclined plane two. DETAILED DESCRIPTION
[0025] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.
[0026] Refer to the instruction manual Figure 1-Figure 10 The present embodiment provides a joint structure for folding a baby stroller, comprising a front joint 11, a back joint 12 is arranged in the middle of one end of the front joint 11, and rear joints 13 are arranged on both sides of the front joint 11. The front joint 11, the back joint 12 and the rear joint 13 are rotatably connected through a central axis 1, upper joints 14 are arranged on both sides of the front joint 11, one end of the upper joint 14 is hinged to the rear joint 13, and a connecting shaft 15 is rotatably connected to the upper joint 14. A long groove 111 is opened at one end of the front joint 11 away from the back joint 12, and the connecting shaft 15 is arranged inside the long groove 111. The front joint 11, the rear joint 13 and the upper joint 14 form a triangular structure; a connecting rod 16 is arranged on the side of the back joint 12, one end of the connecting rod 16 is hinged to the edge of the back joint 12, and the other end of the connecting rod 16 is rotatably connected to the connecting shaft 15; a locking assembly 5 is installed inside the back joint 12, and the locking assembly 5 is used to lock the front joint 11 and the back joint 12.
[0027] It should be noted that the front joint 11 is used for installing the front wheel assembly 2, the back joint 12 is used for installing the handlebar assembly 3, the rear joint 13 is used for installing the rear wheel assembly 4, and the upper joint 14 is used for installing the seat.
[0028] In the above technical solution, the upper joint 14 and the rear joint 13 are hinged by the second connecting shaft 17. The triangular structure formed by the front joint 11, the rear joint 13 and the upper joint 14 is a triangular structure with the central axis 1, the second connecting shaft 17 and the first connecting shaft 15 as the connection points. When folding, the front joint 11 remains stationary, and the back joint 12 rotates in the direction of the front joint 11. At this time, the connecting rod 16 drives the first connecting shaft 15 to slide inside the long groove 111, so that the first connecting shaft 15 drives the upper joint 14 to fold, and the upper joint 14 drives the rear joint 13 to fold through the second connecting shaft 17. After the front joint 11 and the back joint 12 are locked by the locking assembly 5, the front joint 11 and the back joint 12 can no longer rotate, so they cannot be folded.
[0029] The above technical solution sets up a triangular folding structure. When the back joint 12 is rotated and folded, the back joint 12 only needs to drive the upper joint 14 to rotate and fold through the connecting rod 16, and the upper joint 14 can drive the rear joint 13 to rotate and fold. That is, when unfolding and locking, it is only necessary to lock the front joint 11 and the back joint 12, thereby optimizing the structure and reducing the production and processing costs.
[0030] Furthermore, if Figure 4 , Figure 7-Figure 9 As shown, the locking assembly 5 includes a slider 51, which is slidably inserted into the inside of the back joint 12. An elastic component 52 is pressed on the bottom of the slider 51, and a clamping shaft 53 is inserted on the slider 51. Slide grooves 121 are provided on both sides of the back joint 12, and the clamping shaft 53 is movably arranged in the slide grooves 121. Arc grooves 112 are provided on both sides of the front joint 11, and a limiting groove 113 is provided at one end of the arc groove 112. When the clamping shaft 53 is located in the limiting groove 113, the front joint 11 and the back joint 12 are locked.
[0031] It should be noted that the elastic component 52 is a compression spring, which is used to reset the slider 51. When the slider 51 is reset, the slider 51 drives the clamping shaft 53 to enter the limiting groove 113. The axis of the arc groove 112 is coaxial with the central axis 1, and the limiting groove 113 is opened along the radial direction of the arc groove 112.
[0032] Furthermore, a groove 55 is provided on the slider 51 , a slope 1 56 is provided on one side of the groove 55 , an unlocking block 6 is movably provided on the upper end of the back joint 12 , a slope 2 61 is provided on the bottom of the unlocking block 6 , and the slope 2 61 is used to push the slope 1 56 .
[0033] Furthermore, an avoidance groove 54 is formed on the sliding block 51 , and the front joint 11 is movably disposed in the avoidance groove 54 .
[0034] Furthermore, a side groove 161 is formed on one side of the connecting rod 16 , and when the front joint 11 and the back joint 12 are locked, the clamping shaft 53 is located in the side groove 161 .
[0035] Working principle:
[0036] In the expanded state, Figure 1-Figure 3 , Figure 5-Figure 9 As shown, the clamping shaft 53 is located inside the limiting groove 113. At this time, the clamping shaft 53 locks the front joint 11 and the back joint 12, so that the front joint 11 and the back joint 12 cannot rotate relative to each other, and thus cannot be folded.
[0037] When folding is required, first press the unlocking block 6 so that the second inclined plane 61 pushes the first inclined plane 56, thereby moving the slider 51 downward, the elastic component 52 is compressed, and the slider 51 drives the clamping shaft 53 to move from the limiting groove 113 to the inside of the arc groove 112, and then keep the front joint 11 still and rotate the back joint 12. During the rotation process, the clamping shaft 53 moves inside the arc groove 112, and the back joint 12 pushes the connecting shaft 15 to move inside the long groove 111 through the connecting rod 16. The connecting shaft 15 drives the upper joint 14 to fold forward, and the upper joint 14 drives the rear joint 13 to fold forward through the connecting shaft 2 17. After folding, Fig.10 When unfolding, the back joint 12 can be rotated in the opposite direction. After unfolding, the elastic component 52 pushes the slider 51 to move, and the slider 51 drives the clamping shaft 53 to re-enter the interior of the limiting groove 113 from the arc groove 112 to lock the front joint 11 and the back joint 12.
[0038] Refer to the instruction manual Figure 1-Figure 10 This embodiment also provides a baby carriage, including the above-mentioned joint structure, a front wheel assembly 2 is installed on the front joint 11, a push handle assembly 3 is installed on the back joint 12, a rear wheel assembly 4 is installed on the rear joint 13, and a seat is installed on the upper joint 14.
[0039] Furthermore, the push handle assembly 3 includes a fixed rod 31 , which is fixedly mounted on the back joint 12 , and a movable rod 32 is axially movably inserted into the upper end of the fixed rod 31 , and the movable rod 32 is used to push the unlocking block 6 .
[0040] It should be noted that when the unlocking block 6 is installed, a groove can be opened on the unlocking block 6, holes can be opened on the back joint 12 and the fixing rod 31 and a pin can be inserted, and the pin can be inserted into the groove on the unlocking block 6, so that the unlocking block 6 can slide relative to the pin, the back joint 12 and the rear joint 13.
[0041] Working principle: when the stroller needs to be folded, the unlocking block 6 needs to be pressed so that the second inclined surface 61 pushes the first inclined surface 56 to unlock. Through the setting of the fixed rod 31 and the movable rod 32, when folding the stroller, the movable rod 32 is first pressed to retract the movable rod 32 into the fixed rod 31. At this time, the bottom of the movable rod 32 can push the unlocking block 6 to move and unlock, making unlocking more convenient.
[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A joint structure for folding a baby stroller, characterized in that: The invention comprises a front joint (11), a back joint (12) is arranged in the middle of one end of the front joint (11), a back joint (13) is arranged on both sides of the front joint (11), the front joint (11), the back joint (12) and the back joint (13) are rotatably connected via a central axis (1), an upper joint (14) is arranged on both sides of the front joint (11), one end of the upper joint (14) is hinged to the back joint (13), a connecting shaft (15) is rotatably connected to the upper joint (14), a long slot (111) is provided at one end of the front joint (11) away from the back joint (12), the connecting shaft (15) is arranged inside the long slot (111), and the front joint (11), the back joint (13) and the upper joint (14) form a triangular structure; A connecting rod (16) is provided on the side of the back joint (12), one end of the connecting rod (16) is hinged to the edge of the back joint (12), and the other end of the connecting rod (16) is rotatably connected to a connecting shaft (15); A locking assembly (5) is installed inside the back joint (12), and the locking assembly (5) is used to lock the front joint (11) and the back joint (12).
2. A folding joint structure for a baby stroller according to claim 1, characterized in that: The locking assembly (5) comprises a slider (51), the slider (51) is slidably inserted into the interior of the back joint (12), an elastic component (52) is pressed at the bottom of the slider (51), a clamping shaft (53) is inserted into the slider (51), both sides of the back joint (12) are provided with sliding grooves (121), the clamping shaft (53) is movably arranged in the sliding grooves (121), both sides of the front joint (11) are provided with arc grooves (112), one end of the arc groove (112) is provided with a limiting groove (113), when the clamping shaft (53) is located in the limiting groove (113), the front joint (11) and the back joint (12) are locked.
3. A folding joint structure for a baby stroller according to claim 2, characterized in that: The sliding block (51) is provided with a groove (55), one side of the groove (55) is provided with a first inclined surface (56), the upper end of the back joint (12) is movably provided with an unlocking block (6), the bottom of the unlocking block (6) is provided with a second inclined surface (61), and the second inclined surface (61) is used to push the first inclined surface (56).
4. A folding joint structure for a baby stroller according to claim 3, characterized in that: The sliding block (51) is provided with an avoidance groove (54), and the front joint (11) is movably arranged in the avoidance groove (54).
5. The joint structure for folding a baby stroller according to claim 3, characterized in that: A side groove (161) is provided on one side of the connecting rod (16); when the front joint (11) and the back joint (12) are locked, the clamping shaft (53) is located in the side groove (161).
6. A baby stroller, comprising the joint structure according to any one of claims 3 to 5, characterized in that: The front joint (11) is equipped with a front wheel assembly (2), the back joint (12) is equipped with a push handle assembly (3), the rear joint (13) is equipped with a rear wheel assembly (4), and the upper joint (14) is equipped with a seat.
7. A baby stroller according to claim 6, characterized in that: The push handle assembly (3) comprises a fixed rod (31), the fixed rod (31) is fixedly mounted on the back joint (12), a movable rod (32) is axially movably inserted into the upper end of the fixed rod (31), and the movable rod (32) is used to push the unlocking block (6).