一种带止锁功能的折叠连接结构
By using a folding connection structure with a locking function, the problem of easy loss of locking mechanisms in existing folding tables and other outdoor products is solved, achieving stable unfolding and easy folding, and improving safety and compressive strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州富兰德户外休闲用品有限公司
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-17
AI Technical Summary
The locking mechanisms of existing folding tables, cabinets, and chairs are easily lost, leading to inconvenience, instability, and safety hazards, and failing to meet the needs of modern outdoor leisure activities.
It adopts a folding connection structure with locking function, including a right rotating connector, a left rotating connector, a right hinge piece, a left hinge piece, a locking wheel, a locking pin, a spring, and a rotating pin. The hinge piece can be stably unfolded and folded through an axial rotation telescopic structure, and the locking wheel and locking pin can be used to effectively lock and unlock.
It improves the compressive strength and stability of outdoor products such as folding tables, avoids problems such as accidental folding or insecure unfolding, provides easy operation and safety, and ensures that it is firmly locked when unfolded and operates smoothly when folded.
Smart Images
Figure CN224515655U_ABST
Abstract
Claims
1. A folding connection structure with a locking function, characterized by: The assembly includes a right rotating connector (1), a left rotating connector (2), a right hinge piece (3), a left hinge piece (4), a locking wheel (5), a locking pin (6), a spring (7), and a rotating pin (8). The right rotating connector (1) is fixedly connected to the right hinge piece (3), and the left rotating connector (2) is fixedly connected to the left hinge piece (4). The right hinge fixing piece (31) of the right hinge piece (3) has spaced right pin holes (32) and right locking holes (33), and the left hinge fixing piece (41) of the left hinge piece (4) has spaced left pin holes (42) and left locking holes (43). The right pin hole (32) on the right hinge piece (3) and the left pin hole (42) on the left hinge piece (4) are hinged together by the rotating pin (8). The locking pin (6) is fitted onto the left rotating connector (2), and the spring (7) is fitted onto the left hinge piece (4). Mounted on the locking pin (6), the exposed end of the locking pin (6) is fixedly mounted on the locking wheel (5). An axial rotation telescopic structure is provided between the locking wheel (5) and the left rotating connector (2). When the locking wheel (5) is in the locked state, the right hinge piece (3) and the left hinge piece (4) are in the unfolded state. The right locking hole (33) on the right hinge piece (3) and the left locking hole (43) on the left hinge piece (4) are coaxial and can rotate axially. The structure allows the other end of the locking pin (6) to be inserted into the right locking hole (33) of the right hinge plate (3) and the left locking hole (43) of the left hinge plate (4) at the same time; when the locking wheel (5) is in the unlocked state, the axial rotation telescopic structure allows the other end of the locking pin (6) to exit from the left locking hole (43) of the left hinge plate (4), and the right hinge plate (3) and the left hinge plate (4) can rotate and fold around the rotating pin (8).
2. The folding connection structure with locking function according to claim 1, characterized in that: The axial rotation telescopic structure includes a locking wheel (5), a locking pin (6), a spring (7), and a right-turning connector (1). The locking wheel (5) includes a handwheel (51), an inner end face arc-shaped protrusion (52), a circumferential limiting block (53), and a center hole (54). The locking pin (6) is coaxially provided with a pin head (61), a limiting shoulder (62), and a connecting shaft (63). On the side of the right-turning connector (1) away from the right hinge piece, there is a starting protrusion (11), a ending protrusion (12), a lifting end face (13), and a pin hole (14). The starting protrusion (11) and the ending protrusion (12) are symmetrically arranged on both sides of the pin hole (14). The lifting end face (13) is located between the starting protrusion (11) and the ending protrusion (12). The spring (7) 7) The connecting shaft (63) of the locking pin (6) is fitted on the connecting shaft (63) of the locking pin (6), which is fitted on the pin hole (14). The exposed section is fixedly connected to the center hole (54) of the locking wheel (5). The spring (7) is located between the limiting shoulder (62) and the side of the right rotating connector (1). When the locking wheel (5) is in the unlocked state, the inner end face arc protrusion (52) is located on the side of the starting protrusion (11), and the pin head (61) of the locking pin (6) is in the retracted state. When the locking wheel (5) is in the locked state, the inner end face arc protrusion (52) is located on the side of the ending protrusion (12), and the pin head (61) of the locking pin (6) is in the extended state. The circumferential limiting block (53) is located between the starting protrusion (11) and the ending protrusion (12).
3. The folding connection structure with a locking function according to claim 2, characterized in that: The radial cross-sectional shape of the inner end face arc-shaped protrusion (52) is an outwardly convex V-shape.
4. The folding connection structure with locking function according to claim 1, characterized in that: Two spaced right mounting holes (34) are provided on the right hinge fixing plate (31) of the right hinge plate (3), and two spaced left mounting holes (44) are provided on the left hinge fixing plate (41) of the left hinge plate (4).
5. A folding connection structure with locking function according to claim 1, characterized in that: The right pin hole (32) and the right locking hole (33) are distributed at intervals along the vertical direction on the right hinge fixing plate (31), and the left pin hole (42) and the left locking hole (43) are distributed at intervals along the vertical direction on the left hinge fixing plate (41). The distance between the right pin hole (32) and the right locking hole (33) is the same as the distance between the left pin hole (42) and the left locking hole (43).
6. A folding connection structure with locking function according to claim 1, characterized in that: The right-rotating connector (1) includes a right connecting section (16) and a right-rotating mating section (17). The right connecting section (16) is provided with a right through hole (15) corresponding to the right mounting hole (34) on the right hinge fixing piece (31).
7. A folding connection structure with locking function according to claim 1, characterized in that: The left-turning connector (2) includes a left connecting section (21) and a left-turning mating section (22). The left connecting section (21) is provided with a left through hole (23) corresponding to the left mounting hole (44) on the left hinge fixing piece (41).
8. The folding connection structure with locking function according to claim 1, characterized in that: The right-turn connector (1) and the left-turn connector (2) are respectively inserted into the inner hole of the corresponding connecting pipe (10). The connecting part of the right-turn connector (1) and the connecting pipe (10) is fixedly connected to the right hinge piece (3), and the connecting part of the left-turn connector (2) and the connecting pipe (10) is fixedly connected to the left hinge piece (4).
9. A folding connection structure with locking function according to claim 7, characterized in that: The cross-sectional shape of the right connecting section (16) of the right rotating connector (1) corresponds to the inner hole shape of the connecting pipe (10), and the cross-sectional shape of the left connecting section (21) corresponds to the inner hole shape of the connecting pipe (10).
10. The folding connection structure with a locking function according to claim 9, characterized in that: After the right connecting section (16) is fitted onto the right connecting pipe (10), it is fixedly connected to the right hinge fixing piece (31) by rivets (9). After the left connecting section (21) is fitted onto the left connecting pipe (10), it is fixedly connected to the left hinge fixing piece (41) by rivets (9).