Folding joint structure
By designing a closing joint structure including a base plate, a rotating plate and a rotating limit structure, the problems of complex joint structure and cumbersome operation of the existing children's car are solved, and the smooth closing and unfolding of the children's car are achieved, and the service life is extended. And reduces operation difficulty.
Patent Information
- Application Number
- CN202421272485.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing children's car has complex structure, high cost, and inconvenient assembly. It is easy to stumble when folded or unfolded, which affects the service life, and is cumbersome to operate and troublesome to use.
A retraction joint structure including a base plate connected by the intermediate shaft, a first rotating plate, a second rotating plate and a controllable rotating limit structure is designed. By cooperating with the limit sliding plate, an arcuate groove and a limit member, The smooth collection and deployment of the rotating plate is achieved, simplifying the structure and assembly, and reducing costs.
It achieves the effects of simple structure, low cost, convenient assembly, smooth collection or expansion, long service life and simple operation.
Smart Images
Figure CN222347103U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a folding joint structure, and more specifically to a folding joint structure which can be used for a baby carriage, a child carriage, a child stroller, a child pocket carriage, a walker, a high dining chair, a crib and the like. [Background technology]
[0002] In terms of the design of the frame structure of a children's stroller, in order to meet the practicality and portability requirements of consumers, a children's stroller is generally designed to be foldable, so that it can be opened into the shape of a baby stroller when in use, and can be folded into a smaller size when not in use for easy storage or carrying.
[0003] Generally, when folding a baby stroller, the front legs, the rear legs and the handlebars are folded. Therefore, joint mechanisms need to be provided between the front legs, the rear legs and the handlebars respectively so that the front legs, the rear legs and the handlebars can be pivotally connected to each other. However, the existing joint mechanism has the following defects: 1. The structure is complex, the cost is high, and the assembly is inconvenient. 2. It is easy to get stuck when folding or unfolding, and even the service life is affected, thereby affecting the service life of the entire baby stroller. 3. Some of them require two hands to operate and require multiple operating actions or operating steps, which are inconvenient to fold and troublesome to use. [Summary of the invention]
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a folding joint structure with simple structure, low cost, convenient assembly, smooth folding or unfolding, long service life and easy operation.
[0005] The purpose of the utility model is achieved in this way:
[0006] A folding joint structure, characterized in that it includes a base plate, a first rotating plate, a second rotating plate, and a rotation limiting structure that can control the rotation of the first rotating plate and the second rotating plate connected by an intermediate shaft; the rotation limiting structure includes a limiting sliding plate, the limiting sliding plate is provided with a left sliding groove and a right sliding groove, and an intermediate sliding groove for inserting the intermediate shaft; the base plate is provided with a first arc groove of the base plate that matches the left sliding groove, and a second arc groove of the base plate that matches the right sliding groove; a first limiting piece is inserted into the left sliding groove and the first arc groove of the base plate, and a second limiting piece is inserted into the right sliding groove and the second arc groove of the base plate; the first rotating plate is provided with a first rotating plate groove that matches the first limiting piece, and the second rotating plate is provided with a second rotating plate groove that matches the second limiting piece.
[0007] A folding joint structure as described above is characterized in that the rotation limiting structure also includes a first rotating plate limiting hole matched with the second limiting piece provided on the first rotating plate, and a second rotating plate limiting hole matched with the first limiting piece provided on the second rotating plate.
[0008] A folding joint structure as described above is characterized in that a first pivot seat is also provided on the outer side of the limiting sliding plate, the first pivot seat is provided with a first pivot seat middle hole, and a first pivot seat first arc groove and a first pivot seat second arc groove are symmetrically arranged; a second pivot seat is provided at the back of the second rotating plate, the second pivot seat is provided with a second pivot seat middle hole, a second pivot seat arc groove and a second pivot seat plate limiting hole; the first limiting member is inserted into the first pivot seat first arc groove and the second pivot seat plate limiting hole; the second limiting member is inserted into the first pivot seat second arc groove and the second pivot seat arc groove
[0009] The folding joint structure as described above is characterized in that the first rotating plate is connected to the first rotating plate connecting member, and the second rotating plate is connected to the second rotating plate connecting member.
[0010] The folding joint structure as described above is characterized in that the limiting sliding plate is arranged in front of the bottom plate, the first rotating plate is arranged behind the bottom plate, and the second rotating plate is arranged behind the first rotating plate.
[0011] The folding joint structure as described above is characterized in that the first pivot seat or the second pivot seat is provided with a bottom plate fixing groove, and the bottom plate is provided with a bottom plate fixing plate which is inserted into the bottom plate fixing groove.
[0012] The folding joint structure as described above is characterized in that the bottom plate, the first rotating plate and the second rotating plate are all provided with a rotation positioning groove, and the rotation positioning piece is clamped in the rotation positioning groove.
[0013] The folding joint structure as described above is characterized in that the longest distance between the first arc groove of the bottom plate and the second arc groove of the bottom plate is equal to the longest distance between the left sliding groove and the right sliding groove.
[0014] The folding joint structure as described above is characterized in that the longest distance between the first rotating plate slot and the second rotating plate slot is equal to the longest distance between the left sliding slot and the right sliding slot.
[0015] A folding joint structure as described above is characterized in that the bottom plate is provided with a bottom plate middle hole for the middle shaft to pass through, the first rotating plate is provided with a first rotating plate middle hole for the middle shaft to pass through, and the second rotating plate is provided with a second rotating plate middle hole for the middle shaft to pass through.
[0016] The beneficial effects of the utility model are:
[0017] After the first rotating plate is rotated, the first rotating plate and the second rotating plate can be rotated together or rotated to expand under the cooperation of the limiting sliding plate, the first limiting member and the left sliding groove, the first arc groove of the bottom plate and the first rotating plate groove, and the second limiting member and the right sliding groove, the second arc groove of the bottom plate and the second rotating plate groove. The utility model has a simple structure, low cost, convenient assembly, smooth folding or expansion, long service life and easy operation.
Brief Description of the Drawings
[0018] Figure 1 It is a three-dimensional diagram of the utility model;
[0019] Figure 2 It is a structural explosion diagram of the utility model;
[0020] Figure 3 This is a structural diagram of the utility model assembled in a pivot seat;
[0021] Figure 4 It is a three-dimensional diagram of the utility model assembled in the pivot seat;
[0022] Figure 5 yes Figure 4 Internal structure diagram;
[0023] Figure 6 yes Figure 4 Exploded diagram of
[0024] Figure 7 yes Figure 6 Exploded diagram of
[0025] Figure 8 yes Figure 4 Exploded view in the other direction;
[0026] Fig. 9 It is a structural diagram of the utility model in an unfolded state;
[0027] Fig.10 It is a structural diagram of the utility model in a folded state;
[0028] Fig.11 It is a structural diagram of the utility model in a folded state;
[0029] Fig.12 It is a structural diagram of the utility model in a folded state. [Specific implementation method]
[0030] The utility model is further described below in conjunction with the accompanying drawings:
[0031] A folding joint structure, which includes a base plate 2, a first rotating plate 3, a second rotating plate 4 connected by an intermediate shaft 1, and a rotation limiting structure capable of controlling the rotation of the first rotating plate and the second rotating plate; the rotation limiting structure includes a limiting sliding plate 5, the limiting sliding plate 5 is provided with a left slide groove 51 and a right slide groove 52, and an intermediate slide groove 53 for inserting the intermediate shaft 1; the base plate 2 is provided with a first arc groove 21 of the base plate cooperating with the left slide groove, and a second arc groove 22 of the base plate cooperating with the right slide groove; a first limiting member 61 is inserted into the left slide groove 51 and the first arc groove 21 of the base plate, and a second limiting member 62 is inserted into the right slide groove 52 and the second arc groove 22 of the base plate; the first rotating plate 3 is provided with a first rotating plate groove 31 cooperating with the first limiting member 61, and the second rotating plate 4 is provided with a second rotating plate groove 41 cooperating with the second limiting member 62. Rotate the first rotating plate 3, with the cooperation of the limiting sliding plate 5, and the first limiting member 61 with the left slide groove 51, the first arc groove 21 of the bottom plate and the first rotating plate groove 31, and the cooperation of the second limiting member 62 with the right slide groove 52, the second arc groove 22 of the bottom plate and the second rotating plate groove 41, the first rotating plate and the second rotating plate can be rotated to retract or rotated to unfold.
[0032] The bottom plate 2, the first rotating plate 3 and the second rotating plate 4 of the utility model are all circular or approximately circular. The limiting sliding plate 5 is a cross-shaped plate. The first rotating plate groove 31 is an arc groove and matches the first arc groove 21 of the bottom plate for the first limiting member 61 to be inserted, and the second rotating plate groove 41 is an arc groove and matches the second arc groove 22 of the bottom plate for the second limiting member 62 to be inserted.
[0033] The middle slide groove 53 on the limiting sliding plate 5 of the utility model is arranged vertically, and the left slide groove 51 and the right slide groove 52 are arranged horizontally, so that the middle slide groove 53 is perpendicular to the left slide groove 51 and the right slide groove 52, and the left slide groove 51 and the right slide groove 52 are arranged on the left and right sides of the middle slide groove 53.
[0034] like Figure 1-Figure 2 As shown, the rotation limiting structure further includes a first rotation plate limiting hole 32 that cooperates with the second limiting member 62 on the first rotation plate 3, and a second rotation plate limiting hole 42 that cooperates with the first limiting member 61 on the second rotation plate 4. Figure 9-12 As shown, in this way, when the first rotating plate 3 is rotated, under the cooperation of the limiting sliding plate 5, and the first limiting member 61 with the left slide groove 51, the first arc groove 21 of the bottom plate, the first rotating plate groove 31 and the second rotating plate limiting hole 42, and the second limiting member 62 with the right slide groove 52, the second arc groove 22 of the bottom plate, the second rotating plate groove 41 and the first rotating plate limiting hole 32, the first rotating plate and the second rotating plate can achieve synchronous rotation and retraction or synchronous rotation and expansion.
[0035] Another embodiment of the present invention may be: the first rotating plate 3 is provided with a first rotating plate groove 31, the first limiting member 61 is fixed on the other side of the first rotating plate groove 31 on the first rotating plate 3, and the second limiting member 62 is fixed on the other side of the second rotating plate groove 41 on the second rotating plate 4.
[0036] like Figure 4-Figure 8 As shown, the outer side of the limiting sliding plate 5 of the utility model is also provided with a first pivot seat 7, the first pivot seat 7 is provided with a first pivot seat middle hole 71 for connecting the intermediate shaft 1, and the first pivot seat 7 is also symmetrically provided with a first pivot seat first arc groove 72 and a first pivot seat second arc groove 73; a second pivot seat 8 is provided at the back of the second rotating plate 4, the second pivot seat 8 is provided with a second pivot seat middle hole 81 for connecting the intermediate shaft 1, and the second pivot seat 8 is also provided with a second pivot seat arc groove 82 and a second pivot seat plate limiting hole 83; the first limiting member 61 is inserted into the first pivot seat first arc groove 72 and the second pivot seat plate limiting hole 83; the second limiting member 62 is inserted into the first pivot seat second arc groove 73 and the second pivot seat arc groove 82.
[0037] In order to facilitate fixing of the bottom plate, the utility model is provided with a bottom plate fixing groove 70 on the first pivot seat or the second pivot seat, and the bottom plate 2 is provided with a bottom plate fixing plate 23 which is inserted into the bottom plate fixing groove.
[0038] The first rotating plate 3 of the utility model is connected to the first rotating plate connecting member 33, and the second rotating plate 4 is connected to the second rotating plate connecting member 43. The bottom plate fixing plate 23 can be connected to the rear foot assembly of the baby carriage, the first rotating plate connecting member 33 can be connected to the front foot assembly of the baby carriage, and the second rotating plate connecting member 43 can be connected to the handle of the baby carriage. Alternatively, the first rotating plate connecting member 33 can be connected to the rear foot assembly of the baby carriage, the second rotating plate connecting member 43 can be connected to the handle of the baby carriage, and the bottom plate fixing plate 23 can be connected to the front foot assembly of the baby carriage.
[0039] The limit sliding plate 5 of the utility model is arranged in front of the bottom plate 2, the first rotating plate 3 is arranged behind the bottom plate 2, and the second rotating plate 4 is arranged behind the first rotating plate 3. The front and rear order of the limit sliding plate 5, the bottom plate 2, the first rotating plate 3 and the second rotating plate 4 can also be arbitrarily exchanged.
[0040] The first pivot seat or the second pivot seat of the present invention is provided with a bottom plate fixing groove 70, and the bottom plate 2 is provided with a bottom plate fixing plate 23 which is inserted into the bottom plate fixing groove.
[0041] The bottom plate 2, the first rotating plate 3 and the second rotating plate 4 of the utility model are all provided with a rotating positioning groove 91, and a rotating positioning member 92 is inserted into the rotating positioning groove 91. The rotating positioning member 92 can be automatically inserted into the rotating positioning groove 91 by a spring 93 or other elastic component to achieve locking, and then the rotating positioning member 92 is pulled out of the rotating positioning groove 91 to achieve unlocking.
[0042] The longest distance between the first arc groove 21 of the bottom plate and the second arc groove 22 of the bottom plate is equal to the longest distance between the left sliding groove 51 and the right sliding groove 52 .
[0043] The longest distance between the first rotating plate slot 31 and the second rotating plate slot 41 is equal to the longest distance between the left sliding slot 51 and the right sliding slot 52 .
[0044] The bottom plate 2 is provided with a bottom plate middle hole 24 for the intermediate shaft 1 to pass through, the first rotating plate 3 is provided with a first rotating plate middle hole 34 for the intermediate shaft to pass through, and the second rotating plate 4 is provided with a second rotating plate middle hole 44 for the intermediate shaft to pass through. The bottom plate middle hole 24, the first rotating plate middle hole 34 and the second rotating plate middle hole 44 are all center holes.
Claims
1. A folding joint structure, characterized in that The invention comprises a bottom plate (2), a first rotating plate (3), a second rotating plate (4) connected via an intermediate shaft (1), and a rotation limiting structure capable of controlling the rotation of the first rotating plate and the second rotating plate; the rotation limiting structure comprises a limiting sliding plate (5), the limiting sliding plate (5) being provided with a left sliding groove (51), a right sliding groove (52), and a middle sliding groove (53) for inserting the intermediate shaft (1); the bottom plate (2) being provided with a first arc groove (21) of the bottom plate which is matched with the left sliding groove, and A second arc groove (22) of the bottom plate cooperates with the right side slide groove; a first stopper (61) is inserted into the left side slide groove (51) and the first arc groove (21) of the bottom plate, and a second stopper (62) is inserted into the right side slide groove (52) and the second arc groove (22) of the bottom plate; the first rotating plate (3) is provided with a first rotating plate groove (31) that cooperates with the first stopper (61), and the second rotating plate (4) is provided with a second rotating plate groove (41) that cooperates with the second stopper (62).
2. A folding joint structure according to claim 1, characterized in that The rotation limiting structure also includes a first rotation plate limiting hole (32) on the first rotation plate (3) and cooperating with the second limiting member (62), and a second rotation plate limiting hole (42) on the second rotation plate (4) and cooperating with the first limiting member (61).
3. The folding joint structure according to claim 1, characterized in that A first pivot seat (7) is also provided on the outer side of the limiting sliding plate (5), and the first pivot seat (7) is provided with a first pivot seat middle hole (71), and a first pivot seat first arc groove (72) and a first pivot seat second arc groove (73) are symmetrically arranged; a second pivot seat (8) is provided on the rear side of the second rotating plate (4), and the second pivot seat (8) is provided with a second pivot seat middle hole (81), a second pivot seat arc groove (82) and a second pivot seat plate limiting hole (83); the first limiting member (61) is inserted into the first pivot seat first arc groove (72) and the second pivot seat plate limiting hole (83); the second limiting member (62) is inserted into the first pivot seat second arc groove (73) and the second pivot seat arc groove (82).
4. The folding joint structure according to claim 1, characterized in that The first rotating plate (3) is connected to a first rotating plate connecting member (33), and the second rotating plate (4) is connected to a second rotating plate connecting member (43).
5. The folding joint structure according to claim 1, characterized in that The limiting sliding plate (5) is arranged in front of the bottom plate (2), the first rotating plate (3) is arranged behind the bottom plate (2), and the second rotating plate (4) is arranged behind the first rotating plate (3).
6. The folding joint structure according to claim 1, characterized in that The first pivot seat or the second pivot seat is provided with a bottom plate fixing groove (70), and the bottom plate (2) is provided with a bottom plate fixing plate (23) which is inserted into the bottom plate fixing groove.
7. The folding joint structure according to claim 1, characterized in that The bottom plate (2), the first rotating plate (3) and the second rotating plate (4) are all provided with a rotating positioning groove (91), and a rotating positioning member (92) is inserted into the rotating positioning groove (91).
8. The folding joint structure according to claim 1, characterized in that The longest distance between the first arc-shaped groove (21) of the bottom plate and the second arc-shaped groove (22) of the bottom plate is equal to the longest distance between the left sliding groove (51) and the right sliding groove (52).
9. The folding joint structure according to claim 1, characterized in that The longest distance between the first rotating plate slot (31) and the second rotating plate slot (41) is equal to the longest distance between the left sliding slot (51) and the right sliding slot (52).
10. The folding joint structure according to claim 1, characterized in that The bottom plate (2) is provided with a bottom plate middle hole (24) for the middle shaft (1) to pass through, the first rotating plate (3) is provided with a first rotating plate middle hole (34) for the middle shaft to pass through, and the second rotating plate (4) is provided with a second rotating plate middle hole (44) for the middle shaft to pass through.