Rotary anti-falling mechanism
By designing a rotating anti-detachment mechanism, the problem of the limited functionality of the car tray unlocking mechanism was solved, achieving stability and safety in multi-functional operation, and improving user experience and overall performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-20
AI Technical Summary
Existing car tray table unlocking mechanisms are limited in function and simple in structure, making it difficult to meet the needs of multi-functional operation. They also lack stability and reliability, and are prone to accidental unlocking or unsmooth unlocking during vehicle operation, affecting user experience and overall performance.
A rotating anti-detachment mechanism was designed, including a small table body, an anti-detachment mechanism, and a connecting mechanism. Through the coordinated action of components such as the screw body, fastening plate, flat groove plate, torsion unit housing, and connecting shaft, the small table can be reliably locked and unlocked for operations such as raising, rotating, unfolding, and pressing down for storage, ensuring operational stability and safety.
It enables reliable unlocking and locking of the small table under different operating states, avoids accidental unlocking, improves the convenience and stability of operation, meets users' needs for convenience and security, and enhances the overall performance of the small table.
Smart Images

Figure CN224013458U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile movable parts, in particular to a rotation anti -drop mechanism. BACKGROUND
[0002] In order to meet the demand of automobile user to small table board and so on movable mechanism use convenience, stability in the movement process locking, realize the unlocking and locking function of automobile small table board under different operating conditions, including the locking and unlocking operation of rising, rotating, unfolding, pressing down and storing etc.
[0003] Because the unlocking mechanism in the existing automobile small table board is usually single function, simple structure, it is difficult to meet the complex operation demand and collision use safety demand of multifunctional automobile small table board, some traditional unlocking mechanism can only realize the basic locking and unlocking function, and there is the deficiency in stability, reliability and operation convenience, for example, in the vehicle driving process, the problem of accidental unlocking or unlocking is not smooth, at the same time, it cannot well cooperate with the linkage unlocking and locking of multiple function operations of small table board, such as rising, rotating, unfolding and pressing down and storing etc. UTILITY MODEL CONTENTS
[0004] In view of the deficiency of prior art, the utility model provides a rotation anti -drop mechanism, solves the problem that the unlocking mechanism in the existing automobile small table board is usually single function, simple structure, it is difficult to meet the complex operation demand and collision use safety demand of multifunctional automobile small table board, some traditional unlocking mechanism can only realize the basic locking and unlocking function, and there is the deficiency in stability, reliability and operation convenience, for example, in the vehicle driving process, the problem of accidental unlocking or unlocking is not smooth, at the same time, it cannot well cooperate with the linkage unlocking and locking of multiple function operations of small table board, such as rising, rotating, unfolding and pressing down and storing etc.
[0005] The utility model provides following technical scheme: a rotation anti -drop mechanism, including small table board body, the side of small table board body is provided with small table board long arm, be provided with anti -drop mechanism and connecting mechanism on small table board body;
[0006] The anti -drop mechanism is composed of screw body, first fastening piece, second fastening piece, flat copper bush, flat groove piece body, snap spring, torsion unit cover, torsion unit casing, connecting shaft body and pin;
[0007] One side of small table board long arm is provided with small table board long arm groove, the other side of small table board long arm is provided with small table board long arm inner circle, small table board long arm inner groove is arranged in small table board long arm inner circle;
[0008] The small table board body is provided with a small table board inner groove;
[0009] The screw body bottom is provided with a screw thread outside;
[0010] One side of the first fastening piece is provided with a first tooth shape, and the other side of the first fastening piece is provided with a second tooth shape.
[0011] Preferably, one side of the second fastening piece is provided with a third tooth shape, and the other side of the second fastening piece is provided with a fourth tooth shape.
[0012] Preferably, the flat copper sleeve is provided with a first copper sleeve groove and a second copper sleeve groove.
[0013] Preferably, the middle part of the flat groove piece body is provided with a flat groove piece inner groove.
[0014] Preferably, the side edge of the torsion unit shell is provided with a shell inner circle, and the bottom of the torsion unit shell is provided with a shell connecting seat.
[0015] Preferably, the top of the connecting shaft body is provided with a connecting shaft inner groove, two connecting shaft grooves are symmetrically formed on the two sides of the connecting shaft inner groove, the bottom side of the connecting shaft groove is provided with a connecting shaft outer circle, and four screw holes are uniformly formed on the connecting shaft body.
[0016] Compared with the prior art, the utility model provides a rotation anti -drop mechanism, has the following beneficial effects:
[0017] (1) the utility model discloses a small table board body, small table board long arm, first fastening piece, flat groove piece body, torsion unit cover, torsion unit shell and connecting shaft body are set up, can satisfy different operating conditions such as rising, rotation, unfolding and down -pressing and provide reliable unlocking and locking function, the unlocking mechanism of the automobile small table board can accurately realize the locking and unlocking of the small table board rising, rotation, unfolding, down -pressing and operating, through the cooperation of each part, ensure the reliability and stability of operation, avoid accidental unlocking in the vehicle driving, guarantee the safe use, convenient operation, conform to the ergonomic design, and the user operation is easy, and the structure is durable, and is easy to maintain, improves the small table board performance, satisfies the demand of user to convenience and stability. ACCURATE DESCRIPTION
[0018] Figure 1 It is according to the small table board body perspective view of the present application;
[0019] Figure 2 It is according to the small table board body perspective view of the present application;
[0020] Figure 3Is the anti-off mechanism according to the application perspective view;
[0021] Figure 4 Is the anti-off mechanism installation site perspective view according to the application;
[0022] Figure 5 Is the anti-off mechanism installation site perspective view according to the application;
[0023] Figure 6 Is the connecting shaft body installation site perspective view according to the application;
[0024] Figure 7 Is the connecting shaft body perspective view according to the application;
[0025] Figure 8 Is the screw body perspective view according to the application;
[0026] Figure 9 Is the first fastening piece perspective view according to the application;
[0027] Figure 10 Is the second fastening piece perspective view according to the application;
[0028] Figure 11 Is the fastening piece separation flat groove piece body perspective view according to the application;
[0029] Figure 12 Is the flat position copper sleeve perspective view according to the application;
[0030] Figure 13 Is the torsion unit shell perspective view according to the application;
[0031] Figure 14 Is the torsion unit shell separation perspective view according to the application;
[0032] Figure 15 Is the spring perspective view according to the application;
[0033] Figure 16 Is the pin perspective view according to the application.
[0034] In the figure: 100, small table plate body; 200, small table plate long arm; 300, screw body; 400, first fastening piece; 500, second fastening piece; 600, flat position copper sleeve; 700, flat groove piece body; 800, spring; 900, torsion unit cover; 1000, torsion unit shell; 1100, connecting shaft body; 1200, pin;
[0035] 100-1, small table plate inner groove;
[0036] 200-1, small table plate long arm groove; 200-2, small table plate long arm inner circle; 200-3, small table plate long arm inner groove;
[0037] 300-1, thread;
[0038] 400-1, first tooth shape; 400-2, second tooth shape;
[0039] 500-1, third tooth shape; 500-2, fourth tooth shape;
[0040] 600-1, first copper sleeve groove; 600-2, second copper sleeve groove;
[0041] 700-1, flat slot inner groove;
[0042] 1000-1, housing inner circle; 1000-2, housing connecting seat.
[0043] 1100-1, connecting shaft inner groove; 1100-2, connecting shaft groove; 1100-3, connecting shaft outer circle; 1100-4, screw hole. DETAILED DESCRIPTION
[0044] Please refer to Figures 1-16 ,
[0045] Example one: a rotating anti-disengagement mechanism, comprising a small table plate body 100, a small table plate long arm 200 is arranged on the side of the small table plate body 100, and an anti-disengagement mechanism and a connecting mechanism are arranged on the small table plate body 100.
[0046] The anti-disengagement mechanism is composed of a screw body 300, a first fastening piece 400, a second fastening piece 500, a flat copper sleeve 600, a flat slot piece body 700, a circlip 800, a torsion unit cover 900, a torsion unit housing 1000, a connecting shaft body 1100, and a pin 1200.
[0047] One side of the small table plate long arm 200 is provided with a small table plate long arm groove 200-1, and the other side of the small table plate long arm 200 is provided with a small table plate long arm inner circle 200-2, and a small table plate long arm inner groove 200-3 is arranged in the small table plate long arm inner circle 200-2.
[0048] The small table plate body 100 is provided with a small table plate inner groove 100-1.
[0049] The bottom outer side of the screw body 300 is provided with a thread 300-1.
[0050] One side of the first fastening piece 400 is provided with a first tooth shape 400-1, and the other side of the first fastening piece 400 is provided with a second tooth shape 400-2.
[0051] One side of the second fastening piece 500 is provided with a third tooth shape 500-1, and the other side of the second fastening piece 500 is provided with a fourth tooth shape 500-2.
[0052] The flat copper sleeve 600 is provided with a first copper sleeve groove 600-1 and a second copper sleeve groove 600-2.
[0053] Embodiment two: The difference between this embodiment and embodiment one is that the middle part of the flat slot body 700 is provided with a flat slot inner groove 700-1.
[0054] Embodiment three: The difference between this embodiment and embodiment one is that the side of the torsion unit shell 1000 is provided with a shell inner circle 1000-1, and the bottom of the torsion unit shell 1000 is provided with a shell connecting seat 1000-2.
[0055] Embodiment four: The difference between this embodiment and embodiment one is that the top of the connecting shaft body 1100 is provided with a connecting shaft inner groove 1100-1, two connecting shaft grooves 1100-2 are symmetrically arranged on both sides of the connecting shaft inner groove 1100-1, a connecting shaft outer circle 1100-3 is arranged at the bottom side of the connecting shaft groove 1100-2, and four screw holes 1100-4 are uniformly arranged on the connecting shaft body 1100.
[0056] In the prior art, the unlocking mechanism of the automobile small table plate is usually single-function and simple in structure, and it is difficult to meet the complex operation requirements and collision use safety requirements of the multifunctional automobile small table plate. Some traditional unlocking mechanisms can only realize the basic locking and unlocking functions, and there are deficiencies in stability, reliability and operation convenience. For example, during vehicle driving, accidental unlocking or unlocking inconvenience may occur, and the unlocking mechanism cannot well cooperate with the multiple function operations of the small table plate, such as linkage unlocking and locking of ascending, rotating, unfolding and depressing storage operations, which affects the user's use experience and the overall performance of the small table plate.
[0057] In summary, in specific implementation, the anti-disengagement part is composed of the screw body 300, the first fastening piece 400, the second fastening piece 500, the flat slot body 700, the flat copper sleeve 600, the snap spring 800, the torsion unit shell 1000, the torsion unit cover 900, the connecting shaft body 1100 and the pin 1200.
[0058] The anti-falling mechanism is installed in the small table plate long arm slot 200-1, and the main purpose of the anti-falling mechanism is to strengthen the cooperation between the small table plate body 100 and the small table plate long arm 200. The anti-falling mechanism mainly comprises a screw body 300, a first fastening piece 400, a second fastening piece 500, a flat slot piece body 700, a flat copper sleeve 600, a connecting shaft body 1100, a clamping spring 800, a torsion unit housing 1000, a torsion unit cover 900, and is installed in the small table plate long arm 200. First, the second tooth shape 400-2 and the third tooth shape 500-1 between the first fastening piece 400 and the second fastening piece 500 are matched with each other, and the function is that when the small table plate body 100 rotates, the screw body 300 will appear gap and looseness with the increase of the rotation times of the small table plate body 100, and the two second tooth shapes 400-2 and the third tooth shapes 500-1 will make the cooperation between the screw body 300 and the small table plate body 100 more and more tight to prevent looseness.
[0059] The flat slot piece body 700 is installed in the small table plate long arm slot 200-1, and the main function of the flat slot piece body 700 is to isolate the direct contact between the screw body 300 and the small table plate long arm slot 200-1. When the small table plate moves, the screw body 300 is locked on the connecting shaft body 1100, the connecting shaft body 1100 is locked on the small table plate body 100, the small table plate body 100 rotates to drive the screw body 300 to rotate, and the small table plate long arm 200 is in a static state. The screw and the long arm rub each other, which causes the screw to loosen and fall off after long-term use, and the small table plate long arm 200 and the screw flat head limit are too small, which may cause the screw to fall off. The flat slot piece body 700 is placed on the screw to avoid loosening and falling off and rubbing the small table plate long arm, and plays a role of strong connection, limiting and stability.
[0060] The connecting mechanism part is that the torsion unit housing 1000, the torsion unit cover 900 and the internal torsion unit are first installed on the clamping spring 800 of the connecting shaft outer circle 1100-3, and then installed in the inner slot 200-3 of the small table plate long arm. The pin 1200 is installed in the small table plate long arm inner circle 200-2 to play a role of interference fit, which can limit the torsion unit housing 1000 in the small table plate long arm 200, so that the use is more stable, the gap and the shaking amount are eliminated, and then the flat copper sleeve 600 is installed. The first copper sleeve slot 600-1 is assembled with the slot in the small table plate long arm 200 to play a role of limiting and eliminating gap.
[0061] Then install the flat groove body 700 again, install and cooperate with the connecting shaft groove 1100-2, play the role of strong connection, limiting and stability, then install the first fastening piece 400 and the second fastening piece 500, when moving, the two second tooth shapes 400-2 and the third tooth shape 500-1 will make the screw body 300 and the small table plate body 100 more and more tightly cooperate to prevent loosening, finally install the screw body 300, the mechanism completes the connection and installation with the small table plate long arm, then there are four screw holes 1100-4 on the connecting shaft bottom plate for screw connection with the small table plate inner groove 100-1, realizing the cooperation and rotating state of the small table plate and the long arm.
Claims
1. A rotating anti-detachment mechanism, comprising a small table body (100), characterized in that: The side of the small table body (100) is provided with a small table long arm (200), and the small table body (100) is provided with an anti-detachment mechanism and a connecting mechanism. The anti-loosening mechanism consists of a screw body (300), a first fastening plate (400), a second fastening plate (500), a flat copper sleeve (600), a flat groove plate body (700), a snap ring (800), a torque unit cover (900), a torque unit housing (1000), a connecting shaft body (1100), and a pin (1200). A small table long arm groove (200-1) is provided on one side of the small table long arm (200), and a small table long arm inner circle (200-2) is provided on the other side of the small table long arm (200). A small table long arm inner groove (200-3) is provided inside the small table long arm inner circle (200-2). The small table body (100) is provided with a small table inner groove (100-1); The screw body (300) has a thread (300-1) on the outer bottom side; The first fastening plate (400) has a first tooth (400-1) on one side and a second tooth (400-2) on the other side.
2. The rotating anti-detachment mechanism according to claim 1, characterized in that: The second fastening plate (500) has a third tooth (500-1) on one side and a fourth tooth (500-2) on the other side.
3. The rotating anti-detachment mechanism according to claim 2, characterized in that: The flat copper sleeve (600) is provided with a first copper sleeve groove (600-1) and a second copper sleeve groove (600-2).
4. The rotating anti-detachment mechanism according to claim 3, characterized in that: The flat groove plate body (700) is provided with a flat groove plate inner groove (700-1) in the middle.
5. The rotating anti-detachment mechanism according to claim 4, characterized in that: The side of the torque unit housing (1000) is provided with an inner circle (1000-1), and the bottom of the torque unit housing (1000) is provided with a housing connecting seat (1000-2).
6. The rotating anti-detachment mechanism according to claim 5, characterized in that: The top of the connecting shaft body (1100) is provided with a connecting shaft inner groove (1100-1), and two connecting shaft grooves (1100-2) are symmetrically opened on both sides of the connecting shaft inner groove (1100-1). The bottom side of the connecting shaft groove (1100-2) is provided with a connecting shaft outer circle (1100-3), and four screw holes (1100-4) are evenly opened on the connecting shaft body (1100).