A quick locking mechanism of a universal type automobile seat angle adjuster

By combining mechanical locking and electromagnetic assisted locking mechanisms, the problems of cumbersome operation and insufficient stability of traditional car seat adjusters are solved, achieving rapid adjustment and enhanced stability, and making it suitable for a variety of car seats.

CN224392409UActive Publication Date: 2026-06-23JIANGSU LILE AUTOMOBILE COMPONENTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LILE AUTOMOBILE COMPONENTS
Filing Date
2025-06-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional car seat adjusters have cumbersome locking mechanisms, slow adjustment speeds, and cannot meet users' needs for quick seat angle adjustments. Furthermore, they are prone to loosening due to vibrations and bumps while the vehicle is in motion.

Method used

The quick-locking mechanism, consisting of a positioning base, connecting legs, backrest frame, auxiliary frame, connecting rod, metal ring, and electromagnetic generator, combines mechanical locking and electromagnetic assisted locking to ensure that the seat back remains fixed after adjustment, thus enhancing stability.

Benefits of technology

It enables quick adjustment of the seat back angle and maintains stability in complex road conditions, providing a safe and comfortable riding experience and adapting to various car seat sizes and structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile seat accessory, specifically disclose a general type automobile seat angle adjuster's quick locking mechanism, include: the positioning base is set up the same width strip base structure of automobile seat, one connecting support foot is symmetrically set up in the positioning base upper end, and the connecting support foot upper end is connected with the chair back frame surface sliding, and the chair back frame is connected with the support of the chair back of automobile seat and constitutes the chair back structure of automobile seat, the chair back frame is connected pole one through, and the connecting rod one through auxiliary frame. This general type automobile seat angle adjuster's quick locking mechanism, when the user needs to adjust the chair back angle, press the locking frame and the angle gear separation and unlock, after unlocking operation, the chair back frame can take the connecting rod one as the axle, under the support and guide of auxiliary frame, steady rotation, auxiliary frame and chair back frame are arranged at the inclination angle and are connected with the seat bottom end support through bolt, ensure the stability in the rotating process of chair back frame.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat accessories technology, specifically a quick locking mechanism for a universal automotive seat adjuster. Background Technology

[0002] As a key device for adjusting the seat back angle, the performance of a car seat adjuster directly affects the comfort and safety of passengers. Currently, the market mainly offers two types of adjusters: stepped and stepless. Stepped adjusters are controlled by a handle or lever to lock or unlock, enabling discontinuous adjustment. They are characterized by rapid adjustment and high strength, and are commonly used in various car models. With the booming development of the automotive industry, consumers' expectations for the comfort and convenience of car seats are constantly rising.

[0003] Traditional locking mechanisms are cumbersome to operate, resulting in slow adjustment speeds that cannot meet users' needs for quick seat angle adjustments. Furthermore, during vehicle operation, vibrations and bumps can easily cause some locking mechanisms to loosen, altering the seat back angle. Summary of the Invention

[0004] The purpose of this utility model is to provide a quick locking mechanism for a universal car seat adjuster, so as to solve the problems mentioned in the background art, where the traditional locking mechanism is cumbersome to operate, resulting in slow adjustment speed, which cannot meet the user's need to quickly adjust the seat angle, and the fact that some locking mechanisms are easily loosened due to vibration and bumps during vehicle operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick locking mechanism for a universal car seat adjuster, including a positioning base, which is provided with a strip base structure of the same width as the car seat. The upper end of the positioning base is symmetrically provided with a connecting leg, and the upper end of the connecting leg is slidably connected to the surface of the seat back frame. The seat back frame is connected to the bracket of the car seat back to form the seat back structure of the car seat.

[0006] The chair back frame is pierced by a connecting rod, which also passes through an auxiliary frame. The auxiliary frame is set at an inclined angle to the chair back frame, and the auxiliary frame is connected to the bottom support of the seat by bolts to support the seat. An angle adjustment gear is provided on the outer wall of the chair back frame.

[0007] One end of the first connecting rod is connected to the second connecting rod, and the second connecting rod passes through a metal ring. The other end of the first connecting rod passes through an adjusting gear, and the gear teeth of the adjusting gear are engaged with one end of the locking frame. The locking frame is configured as an L-shaped structure, and a shaft is provided at the corner of the locking frame. The shaft of the locking frame is rotatably connected to the mounting frame.

[0008] The above technical solution, with the locking frame and the angle-adjusting gear engaging and designed with a specific structure, provides a reliable mechanical locking method to ensure that the seat back remains fixed after adjustment, thus guaranteeing passenger safety and comfort.

[0009] Preferably, the upper surface of the positioning base is provided with a lifting platform, and the lifting platform is installed in the middle of the upper surface of the positioning base.

[0010] By adopting the above technical solution, a lifting platform is added to the positioning base to reserve space for the implementation of the electromagnetic assisted locking function and expand the functional diversity of the locking mechanism.

[0011] Preferably, the lifting platform is a two-section lifting structure, and a block with an arc-shaped groove on one side is installed at the top of the lifting platform, and an electromagnetic generator is installed in the block.

[0012] By adopting the above technical solution, the two-stage lifting structure makes the adjustment of the lifting platform more flexible and can accurately control the position of the top block and the internal electromagnetic generator.

[0013] Preferably, the coil of the electromagnetic generator is wound around the surface of a soft iron sheet, and the soft iron sheet is set in an arc shape, and the arc shape of the soft iron sheet conforms to the curvature of the metal ring.

[0014] By adopting the above technical solution, when the electromagnetic generator is powered on, the soft iron sheet is magnetized and can attract the metal ring more efficiently, applying additional stabilizing force to the connecting rod and related components, which significantly enhances the stability of the locking mechanism under complex road conditions.

[0015] Preferably, the electromagnetic generator is connected to a contact switch via a wire, and the contact switch is mounted on an L-shaped frame of the mounting bracket.

[0016] By adopting the above technical solution, the electromagnetic generator is connected to the contact switch mounted on the L-shaped frame of the mounting bracket via a wire, which facilitates the user's operation and control of the opening and closing of the electromagnetic auxiliary locking function.

[0017] Preferably, a groove is provided at the contact point between the locking frame and the tooth block of the adjusting gear, and a spring is provided between the locking frame and the L-shaped frame of the mounting frame.

[0018] The above technical solution incorporates a groove design at the contact point between the locking frame and the adjusting gear block, which increases the tightness and stability of their engagement.

[0019] Preferably, the mounting bracket consists of an L-shaped support and a circular protective cover, and the mounting bracket is rotatably connected to the connecting rod.

[0020] Using the above technical solution, the L-shaped bracket provides stable support for the internal components, and the circular protective cover prevents dust and debris from entering, protecting the internal components from corrosion and extending the service life of the locking mechanism.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the quick locking mechanism of this universal car seat adjuster:

[0022] 1. When the user needs to adjust the seat back angle, the locking bracket is pressed to separate and unlock from the angle adjustment gear. After the unlocking operation, the seat back frame can rotate smoothly around the connecting rod as the axis, supported and guided by the auxiliary frame. The auxiliary frame and the seat back frame are set at an inclined angle and connected to the bottom bracket of the seat by bolts to ensure the stability of the seat back frame during rotation and avoid shaking. Furthermore, the positioning base is a strip base structure with the same width as the car seat, and the connecting feet symmetrically set at the upper end are slidably connected to the surface of the seat back frame, so that the quick locking mechanism can adapt to the size and structure of various car seats.

[0023] 2. After the seat back is adjusted to the correct position, the locking bracket, under the action of the spring force, tightly engages the groove with the teeth of the angle-adjusting gear, forming a stable mechanical lock. This locking method can effectively resist external forces such as vibration and bumps during vehicle operation, prevent the angle-adjusting gear from rotating, and ensure that the seat back angle remains stable, providing users with a safe and comfortable riding experience. Furthermore, when additional locking protection is required, the two-section lifting platform in the middle of the upper end face of the positioning base rises, and the electromagnetic generator in the top block approaches the metal ring. The coil of the electromagnetic generator is wrapped around the surface of the arc-shaped soft iron sheet that conforms to the curvature of the metal ring. After being energized, a magnetic field is generated, and the soft iron sheet is magnetized and attracts the metal ring, thereby applying additional stabilizing force to the connecting rod and the components connected to it, further enhancing the overall stability of the locking mechanism and reducing the risk of angular displacement of the seat back under complex road conditions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall connection and installation structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall single-sided installation structure of this utility model;

[0026] Figure 3 This is a three-dimensional and structural schematic diagram of the chair back frame and connecting rod of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the installation position of the connecting rod and the adjusting gear of this utility model;

[0028] Figure 5 This is a schematic diagram of the contact structure between the soft iron sheet and the metal ring during use of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the locking frame and the angle-adjusting gear of this utility model.

[0030] In the diagram: 1. Positioning base; 2. Connecting leg; 3. Chair back frame; 4. Auxiliary frame; 5. Connecting rod one; 6. Connecting rod two; 7. Metal ring; 8. Soft iron sheet; 9. Electromagnetic generator; 10. Lifting platform; 11. Contact switch; 12. Locking frame; 13. Mounting frame; 14. Angle adjustment gear. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6 This utility model provides a technical solution: a quick locking mechanism for a universal car seat adjuster, including a positioning base 1, a connecting leg 2, a seat back frame 3, an auxiliary frame 4, a connecting rod 1 5, a connecting rod 2 6, a metal ring 7, a soft iron sheet 8, an electromagnetic generator 9, a lifting platform 10, a contact switch 11, a locking frame 12, a mounting frame 13, and an adjusting gear 14.

[0033] Among them, the positioning base 1 is provided with a strip base structure of the same width as the car seat. A connecting leg 2 is symmetrically provided on the upper end of the positioning base 1, and the upper end of the connecting leg 2 is slidably connected to the surface of the backrest frame 3. The backrest frame 3 is connected to the support of the car seat back to form the backrest structure of the car seat.

[0034] The backrest frame 3 is penetrated by a connecting rod 5, which also penetrates an auxiliary frame 4. The auxiliary frame 4 is set at an inclined angle to the backrest frame 3, and the auxiliary frame 4 is connected to the bottom bracket of the seat by bolts to support the seat. An angle-adjusting gear 14 is provided on the outer wall of the backrest frame 3. A lifting platform 10 is provided on the upper surface of the positioning base 1, and the lifting platform 10 is installed in the middle of the upper surface of the positioning base 1. The lifting platform 10 is a two-section lifting structure, and a block with an arc-shaped groove on one side is installed at the top of the lifting platform 10. An electromagnetic generator 9 is installed in the block. The coil of the electromagnetic generator 9 is wrapped around the surface of the soft iron sheet 8, and the soft iron sheet 8 is set in an arc shape. The arc shape of the soft iron sheet 8 fits the arc of the metal ring 7. The electromagnetic generator 9 is connected to a contact switch 11 through a wire, and the contact switch 11 is installed on the L-shaped frame of the mounting bracket 13.

[0035] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, the positioning base 1 is placed at the corresponding position on the car seat base. The positioning base 1 is a strip-shaped base structure with the same width as the car seat to ensure accurate installation. Then, bolts and other fasteners are used to firmly install the positioning base 1 on the car seat base. The connecting legs 2 are symmetrically installed on the upper end of the positioning base 1. Then, the upper end of the connecting legs 2 is slidably connected to the surface of the seat back frame 3 to ensure that the connecting legs 2 can slide smoothly on the surface of the seat back frame 3. The seat back frame 3 is connected to the support of the car seat back to form the seat back structure of the car seat. Appropriate connectors such as bolts are used to ensure a firm connection. The auxiliary frame 4 is placed at an inclined angle to the seat back frame 3 so that the connecting rod 5 passes through the seat back frame 3 and the auxiliary frame 4 in sequence. Then, bolts are used to connect the auxiliary frame 4 to the bottom support of the seat to complete the installation of the auxiliary frame 4, which plays the role of supporting and guiding the rotation of the seat back frame 3.

[0036] When in normal use, the electromagnetic auxiliary locking function remains active. The electromagnetic generator 9 installed in the top block of the lifting platform 10 is also close to the metal ring 7. At this time, the locking frame 12 remains in its initial position and is not in contact with the contact switch 11. The electromagnetic generator 9 is energized to generate a magnetic field, which magnetizes the soft iron sheet 8 and attracts the metal ring 7, further enhancing the stability of the lock and preventing the adjustment gear 14 from becoming loose between the locking frame 12 due to vibration or other factors during vehicle operation. This ensures that the seat back angle does not change. When the locking frame 12 is pulled, the contact switch 11 is pressed directly. At this time, the electromagnetic generator 9 is de-energized, and the lifting platform 10 descends to reset, saving energy and increasing overall practicality.

[0037] One end of connecting rod 5 is connected to connecting rod 6, and connecting rod 6 passes through metal ring 7. The other end of connecting rod 5 passes through angle-adjusting gear 14, and the tooth block of angle-adjusting gear 14 is engaged with one end of locking frame 12. Locking frame 12 is set in an L-shaped structure, and a shaft is provided at the corner of locking frame 12. The shaft of locking frame 12 is rotatably connected to mounting frame 13. A groove is provided at the contact point between locking frame 12 and the tooth block of angle-adjusting gear 14. A spring is provided between locking frame 12 and the L-shaped frame of mounting frame 13. Mounting frame 13 is composed of L-shaped bracket and circular protective cover, and mounting frame 13 is rotatably connected to connecting rod 5.

[0038] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, one end of connecting rod 5 is connected to connecting rod 6, so that connecting rod 6 passes through metal ring 7. At the same time, the other end of connecting rod 5 passes through angle-adjusting gear 14 to ensure that all components are tightly connected and rotate flexibly. The shaft of locking frame 12 is installed on mounting frame 13 so that locking frame 12 can rotate around the shaft. A spring is installed between locking frame 12 and L-shaped frame of mounting frame 13. At the same time, a groove is set at the contact point between locking frame 12 and tooth block of angle-adjusting gear 14 to ensure that locking frame 12 can engage with tooth block of angle-adjusting gear 14 under the action of spring. Lifting platform 10 is installed in the middle position of the upper end face of positioning base 1. Electromagnetic generator 9 is installed in the block with arc-shaped groove on one side of the top of lifting platform 10. Soft iron sheet 8 is wrapped around the coil surface of electromagnetic generator 9, and the arc of soft iron sheet 8 fits the arc of metal ring 7. Electromagnetic generator 9 is connected to contact switch 11 installed on L-shaped frame of mounting frame 13 using wire.

[0039] In the initial state, under the action of the spring, the groove at one end of the locking bracket 12 engages with the gear block of the adjusting gear 14, locking the adjusting gear 14 and preventing the seat back frame 3 from rotating, thus fixing the seat back angle. When it is necessary to adjust the seat back angle, the user manually operates the locking bracket 12, causing it to rotate around the shaft, overcoming the spring force and separating the locking bracket 12 from the gear block of the adjusting gear 14. At this time, the adjusting gear 14 is unlocked. After the adjusting gear 14 is unlocked, since the seat back frame 3 is connected to the adjusting gear 14, the user can manually push the seat back frame 3 to rotate it around the connecting rod 5. During rotation, connecting rod 5 passes through the backrest frame 3 and auxiliary frame 4. The auxiliary frame 4 is tilted and connected to the bottom support of the seat with bolts, which supports and guides the rotation of the backrest frame 3. At the same time, connecting rod 6, which is connected to one end of connecting rod 5, passes through the metal ring 7. These components move in coordination to adjust the angle of the seat back. When the seat back is adjusted to the appropriate angle, the component that operates the locking bracket 12 is released. The locking bracket 12 is reset under the elastic force of the spring, and its groove engages with the tooth block of the angle adjustment gear 14 again, locking the angle adjustment gear 14 and thus fixing the angle of the seat back.

[0040] Working principle: When using the quick-locking mechanism of this universal car seat adjuster, the seat back frame 3 is connected to the seat back frame, and the auxiliary frame 4 is connected to the seat bottom support. The auxiliary seat back frame 3 remains stable. In the initial state, under the action of the spring, the groove at one end of the locking frame 12 engages with the gear block of the adjustment gear 14, locking the adjustment gear 14 and preventing the seat back frame 3 from rotating, thus fixing the angle of the car seat back. When it is necessary to adjust the seat back angle, the user operates the locking frame 12 to rotate around its axis, overcoming the spring force and separating the locking frame 12 from the gear block of the adjustment gear 14. At this time, the adjustment gear 14 is unlocked. After the adjustment gear 14 is unlocked, due to the seat back frame... 3 is connected to the angle adjustment gear 14. The user can push the backrest frame 3 to rotate around the connecting rod 1 5. During the rotation, the connecting rod 1 5 passes through the backrest frame 3 and the auxiliary frame 4. The auxiliary frame 4 is tilted and connected to the bottom support of the seat with bolts, which plays the role of supporting and guiding the rotation of the backrest frame 3. At the same time, the connecting rod 2 6 connected to one end of the connecting rod 1 5 passes through the metal ring 7. When the backrest frame 3 rotates, these components move together to adjust the angle of the seat back. When the seat back is adjusted to the appropriate angle, the operating component is released, and the locking frame 12 is reset under the action of the spring. Its groove engages with the tooth block of the angle adjustment gear 14 again to lock the angle adjustment gear 14, thereby fixing the angle of the seat back.

[0041] The lifting platform 10 in the middle of the upper surface of the positioning base 1 has a two-stage lifting structure. When the electromagnetic assisted locking function is needed, the lifting platform 10 rises. The block with an arc-shaped groove on one side of its top rises along with it, and the electromagnetic generator 9 installed in the block also approaches the metal ring 7. When the contact switch 11 is disconnected, the electromagnetic generator 9 is energized and generates a magnetic field. At this time, the soft iron sheet 8 is magnetized and attracts the metal ring 7, further enhancing the stability of the lock and preventing the angle adjustment gear 14 from loosening between the locking frame 12 due to vibration and other factors during vehicle operation. This ensures that the seat back angle does not change. When the electromagnetic assisted locking is not needed, the locking frame 12 is triggered when the contact switch 11 is pulled, the electromagnetic generator 9 is de-energized, and the lifting platform 10 can be lowered to reset, increasing the overall practicality.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-locking mechanism for a universal car seat adjuster, comprising: The positioning base (1) is provided with a strip base structure of the same width as the car seat. The upper end of the positioning base (1) is symmetrically provided with a connecting leg (2), and the upper end of the connecting leg (2) is slidably connected to the surface of the backrest frame (3). The backrest frame (3) is connected to the support of the backrest of the car seat to form the backrest structure of the car seat. The chair back frame (3) is penetrated by a connecting rod (5), and the connecting rod (5) penetrates the auxiliary frame (4). The auxiliary frame (4) is set at an inclined angle to the chair back frame (3), and the auxiliary frame (4) is connected to the seat bottom bracket by bolts to support the seat. An angle adjustment gear (14) is provided on the outer wall of the chair back frame (3). One end of the connecting rod (5) is connected to the connecting rod (6), and the connecting rod (6) passes through the metal ring (7). The other end of the connecting rod (5) passes through the angle-adjusting gear (14), and the tooth block of the angle-adjusting gear (14) is engaged with one end of the locking frame (12). The locking frame (12) is set as an L-shaped structure, and a shaft is provided at the corner of the locking frame (12). The shaft of the locking frame (12) is rotatably connected to the mounting frame (13).

2. The quick-locking mechanism for a universal car seat adjuster according to claim 1, characterized in that: The positioning base (1) is provided with a lifting platform (10) on its upper surface, and the lifting platform (10) is installed in the middle of the upper surface of the positioning base (1).

3. The quick-locking mechanism for a universal car seat adjuster according to claim 2, characterized in that: The lifting platform (10) is a two-section lifting structure, and a block with an arc-shaped groove on one side is installed at the top of the lifting platform (10), and an electromagnetic generator (9) is installed in the block.

4. The quick-locking mechanism for a universal car seat adjuster according to claim 3, characterized in that: The coil of the electromagnetic generator (9) is wrapped around the surface of the soft iron sheet (8), and the soft iron sheet (8) is set in an arc shape, and the arc shape of the soft iron sheet (8) fits the arc of the metal ring (7).

5. The quick-locking mechanism for a universal car seat adjuster according to claim 3, characterized in that: The electromagnetic generator (9) is connected to the contact switch (11) via wires, and the contact switch (11) is mounted on the L-shaped frame of the mounting bracket (13).

6. The quick-locking mechanism for a universal car seat adjuster according to claim 1, characterized in that: The locking frame (12) has a groove at the contact point with the tooth block of the adjusting gear (14), and a spring is provided between the locking frame (12) and the L-shaped frame of the mounting frame (13).

7. The quick-locking mechanism for a universal car seat adjuster according to claim 1, characterized in that: The mounting bracket (13) consists of an L-shaped bracket and a circular protective cover, and the mounting bracket (13) is rotatably connected to the connecting rod (5).