Automobile seat lock body with good adaptability
By setting an expansion component on the ratchet of the car seat lock body, the problem of poor lock body adaptability is solved, realizing a low-cost, highly adaptable lock body design that ensures the security and stability of the lock body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-24
AI Technical Summary
Existing technologies require redesigning and manufacturing lock body parts when matching latches of different diameters, resulting in high development costs, long development cycles, more parts, increased error prevention costs, and limited tolerance between latches and lock bodies. There is also a risk that the latch diameter may be too small to lock properly, making it difficult to meet customer requirements and lacking market competitiveness.
A car seat lock body with good adaptability is designed. By setting an expansion component on the ratchet, including first and second expansion parts, the ratchet and the anti-return pawl are used to adapt to locks of different diameters, avoiding the need to redesign the entire lock body. The expansion component extends and enlarges the shape on the upper surface of the ratchet to ensure the locking effect.
It enables the adaptation of locks with different diameters without changing the meshing surface of the ratchet and pawl, reducing development costs, improving the adaptability and security of the lock body, and ensuring the stability and security of the lock body.
Smart Images
Figure CN224028863U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of automobile accessories, in particular to an automobile seat lock body with good adaptability. BACKGROUND
[0002] The automobile seat lock is an important component of automobile seat design, and mainly functions to ensure the stability and safety of the seat. The design of the automobile seat lock needs to consider multiple factors, including the spatial arrangement and performance requirements of the lock body. However, due to different vehicle models and load conditions of different customers, different diameters of lock catches need to be matched, which brings certain challenges to the design and manufacturing of the lock body.
[0003] In the prior art, when dealing with the matching problem of lock catches with different diameters, it is usually necessary to redesign and manufacture lock body parts that match them, which can cause problems such as high development cost and long cycle. In addition, due to the large number of parts, the mistake-proofing cost is also increased. Moreover, due to the limited tolerance range of the lock catch and the lock body, if the diameter of the lock catch is too small, there may be a risk of being unable to lock, which makes the existing lock body structure unable to meet the requirements of customers and lack of market competitiveness. SUMMARY
[0004] The purpose of the embodiments of the application is to provide an automobile seat lock body with good adaptability, which can solve the technical problems that in the prior art, when dealing with the matching of lock catches with different diameters, it is usually necessary to redesign and manufacture lock body parts, resulting in high development cost and long cycle, and the large number of parts also increases the mistake-proofing cost. Moreover, due to the limited tolerance range of the lock catch and the lock body, if the diameter of the lock catch is too small, there may be a risk of being unable to lock, which makes the existing lock body structure difficult to meet the requirements of customers and lack of competitiveness.
[0005] The embodiments of the application provide an automobile seat lock body with good adaptability, which comprises a bottom plate, a ratchet wheel and a non-return pawl. The ratchet wheel and the non-return pawl are both rotationally arranged on the bottom plate. The ratchet wheel can be used in cooperation with the non-return pawl. An expansion assembly is arranged on the ratchet wheel, and the expansion assembly can abut against a lock catch.
[0006] The expansion assembly comprises a first expansion piece. An installation hole is formed in the ratchet wheel. The first expansion piece is sleeved on the ratchet wheel, and a first mounting block is fixedly arranged on the first expansion piece. The first mounting block is limitingly matched with the installation hole.
[0007] The expansion assembly further comprises a second expansion piece. An installation slot is formed in the ratchet wheel. The second expansion piece is sleeved on the ratchet wheel, and a second mounting block is fixedly arranged on the second expansion piece. The second mounting block is limitingly matched with the installation slot.
[0008] The base plate is riveted with a first rivet and a second rivet, the ratchet is rotatably sleeved on the first rivet, and the anti-return pawl is rotatably sleeved on the second rivet.
[0009] The second rivet is rotatably fitted with a driving pawl, the driving pawl has a limit hole, and the anti-return pawl is riveted with a limit pin, the limit pin passing through the limit hole;
[0010] A first torsion spring is fitted on the first rivet, one end of the first torsion spring is connected to the base plate, and the other end of the first torsion spring is connected to the ratchet.
[0011] A second torsion spring is fitted onto the second rivet. One end of the second torsion spring is connected to the base plate, and the other end of the second torsion spring is connected to the drive pawl.
[0012] The drive pawl is equipped with an unlocking lever.
[0013] The beneficial effects of this utility model are:
[0014] This utility model provides a highly adaptable car seat lock body. When locking is required, the operator applies force to the seat, causing the lock buckle to move into the U-shaped groove of the base plate. The lock buckle pushes the ratchet to rotate counterclockwise, and the ratchet pushes the anti-return pawl to rotate clockwise until the ratchet and anti-return pawl engage. At this point, the expansion component abuts against the lock buckle, and the ratchet and anti-return pawl work together to lock and fix the lock buckle. This car seat lock body, without changing the meshing surface of the ratchet and pawl, extends and enlarges the ratchet's shape on the upper surface of the ratchet by setting an expansion component. It can adapt to lock buckles of different diameters without redesigning and manufacturing the entire lock body, resulting in low development costs, improved lock body adaptability, and ensured lock body safety. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Fig. 1 This is a schematic diagram of the overall structure in some embodiments of this application;
[0017] Fig. 2 This is a schematic diagram of the overall structure of the locking latch state in some embodiments of this application;
[0018] Fig. 3 This is an exploded view of the overall structure in some embodiments of this application;
[0019] Fig. 4 A schematic view of a part structure in some embodiments of the present application;
[0020] Fig. 5 A schematic view of a ratchet structure in some embodiments of the present application;
[0021] Fig. 6 A schematic view of an expansion assembly structure in some embodiments of the present application.
[0022] The reference signs are respectively:
[0023] 1, bottom plate; 11, first rivet; 12, second rivet; 13, driving pawl; 14, limiting hole; 15, first torsion spring; 16, second torsion spring; 17, unlocking rod;
[0024] 2, ratchet; 21, mounting hole; 22, mounting groove;
[0025] 3, non-return pawl; 31, limiting pin;
[0026] 4, expansion assembly; 41, first expansion piece; 42, first mounting block; 43, second expansion piece; 44, second mounting block;
[0027] 5, lock catch. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.
[0030] It should be noted that: similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0032] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] As shown in Figs. 1 to 6 The embodiment of the present application provides an automobile seat lock body with good adaptability, which comprises a bottom plate 1, a ratchet wheel 2 and a non-return pawl 3, the ratchet wheel 2 and the non-return pawl 3 are rotationally arranged on the bottom plate 1, the ratchet wheel 2 can be used in cooperation with the non-return pawl 3, an outward expansion assembly 4 is arranged on the ratchet wheel 2, and the outward expansion assembly 4 can abut against a lock catch 5.
[0035] When locking is needed, an operator applies force to the seat to drive the lock catch 5 to move into the U-shaped groove of the bottom plate 1, the lock catch 5 drives the ratchet wheel 2 to rotate counterclockwise, the ratchet wheel 2 drives the non-return pawl 3 to rotate clockwise, until the ratchet wheel 2 and the non-return pawl 3 are clamped with each other, at this time, the outward expansion assembly 4 abuts against the lock catch 5, and the ratchet wheel 2 and the non-return pawl 3 cooperate to lock and fix the lock catch 5.
[0036] The automobile seat lock body, without changing the meshing surface of the ratchet wheel 2 and the pawl, through the outward expansion assembly 4, extends and enlarges the shape of the ratchet wheel 2 on the upper surface, without the need to redesign and manufacture the entire lock body, can adapt to lock catches 5 of different diameters, has low development cost, improves the adaptability of the lock body, and ensures the safety of the lock body in use.
[0037] AsFigs. 1 to 6 As shown in the drawings, in the embodiment, the outer expansion assembly 4 comprises a first outer expansion piece 41, the ratchet wheel 2 is provided with a mounting hole 21, the first outer expansion piece 41 is sleeved on the ratchet wheel 2, and a first mounting block 42 is fixedly arranged on the first outer expansion piece 41, and the first mounting block 42 is limitedly matched with the mounting hole 21.
[0038] The first outer expansion piece 41 is fixed through the limited matching of the first mounting block 42 and the mounting hole 21, so that the stable connection of the first outer expansion piece 41 and the ratchet wheel 2 is ensured, and the risk of loosening and falling off is avoided.
[0039] As shown in the drawings, in the embodiment, the outer expansion assembly 4 further comprises a second outer expansion piece 43, the ratchet wheel 2 is provided with a mounting groove 22, the second outer expansion piece 43 is sleeved on the ratchet wheel 2, and a second mounting block 44 is fixedly arranged on the second outer expansion piece 43, and the second mounting block 44 is limitedly matched with the mounting groove 22. Figs. 1 to 6 The second outer expansion piece 43 is fixed through the limited matching of the second mounting block 44 and the mounting groove 22, so that the stable connection of the second outer expansion piece 43 and the ratchet wheel 2 is ensured, and the risk of loosening and falling off is avoided.
[0040] As shown in the drawings, in the embodiment, the bottom plate 1 is riveted with a first rivet 11 and a second rivet 12, the ratchet wheel 2 is rotatably sleeved on the first rivet 11, and the check pawl 3 is rotatably sleeved on the second rivet 12.
[0041] Figs. 1 to 4 By setting the first rivet 11 and the second rivet 12 as the rotation axis, the ratchet wheel 2 and the check pawl 3 can be stably installed on the bottom plate 1, the overall structural strength of the lock body is improved, and the ratchet wheel 2 and the check pawl 3 can be flexibly rotated to realize the locking and unlocking functions.
[0042] As shown in the drawings, in the embodiment, the second rivet 12 is rotatably sleeved with a driving pawl 13, the driving pawl 13 is provided with a limiting hole 14, and the check pawl 3 is riveted with a limiting pin 31, and the limiting pin 31 passes through the limiting hole 14.
[0043] As shown in the drawings, in the embodiment, the first rivet 11 is sleeved with a first torsional spring 15, one end of the first torsional spring 15 is connected with the bottom plate 1, and the other end of the first torsional spring 15 is connected with the ratchet wheel 2. Figs. 1 to 4 The second rivet 12 is sleeved with a second torsional spring 16, one end of the second torsional spring 16 is connected with the bottom plate 1, and the other end of the second torsional spring 16 is connected with the driving pawl 13.
[0044]
[0045]
[0046] When it is necessary to unlock, the driving pawl 13 is rotated, the driving pawl 13 drives the limiting pin 31 to rotate through the limiting hole 14, the limiting pin 31 drives the check pawl 3 to rotate, until the check pawl 3 is out of contact with the ratchet wheel 2, the lock catch 5 can be removed from the lock body; the design of the first torsional spring 15 and the second torsional spring 16 provides a reset force for the ratchet wheel 2 and the driving pawl 13.
[0047] As shown in the drawings, in the embodiment, the driving pawl 13 is provided with an unlocking rod 17; when it is necessary to unlock, the driving pawl 13 is driven to rotate by the unlocking rod 17. Figs. 1 to 3
[0048] Working principle: the automobile seat lock body with good adaptability provided by the application, when it is necessary to lock, the operator applies force to the seat to drive the lock catch 5 to move into the U-shaped groove of the bottom plate 1, the lock catch 5 drives the ratchet wheel 2 to rotate counterclockwise, the ratchet wheel 2 drives the check pawl 3 to rotate clockwise, until the ratchet wheel 2 and the check pawl 3 are mutually clamped, at this time, the outward expansion assembly 4 abuts against the lock catch 5, the ratchet wheel 2 and the check pawl 3 are used in cooperation to lock and fix the lock catch 5.
[0049] When it is necessary to unlock, the driving pawl 13 is driven to rotate by the unlocking rod 17, the driving pawl 13 drives the limiting pin 31 to rotate through the limiting hole 14, the limiting pin 31 drives the check pawl 3 to rotate, until the check pawl 3 is out of contact with the ratchet wheel 2, the lock catch 5 can be removed from the lock body.
[0050] The above is only the preferred embodiment of the application and is not used to limit the application, for those skilled in the art, the application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.
Claims
1. A car seat lock body with good adaptability, characterized in that: It includes a base plate (1), a ratchet (2) and a check pawl (3). The ratchet (2) and the check pawl (3) are rotatably mounted on the base plate (1). The ratchet (2) can be used in conjunction with the check pawl (3). An expansion component (4) is provided on the ratchet (2), and the expansion component (4) can abut against the latch (5).
2. The adaptable car seat lock body according to claim 1, characterized in that: The expansion component (4) includes a first expansion member (41), a mounting hole (21) is provided on the ratchet (2), the first expansion member (41) is sleeved on the ratchet (2), and a first mounting block (42) is fixedly provided on the first expansion member (41), and the first mounting block (42) is limited to the mounting hole (21).
3. The adaptable car seat lock body according to claim 1, characterized in that: The expansion component (4) further includes a second expansion member (43). The ratchet (2) has an installation groove (22). The second expansion member (43) is sleeved on the ratchet (2), and a second installation block (44) is fixedly provided on the second expansion member (43). The second installation block (44) is in a limiting fit with the installation groove (22).
4. The adaptable car seat lock body according to claim 1, characterized in that: The base plate (1) is riveted with a first rivet (11) and a second rivet (12). The ratchet (2) is rotatably sleeved on the first rivet (11), and the anti-return pawl (3) is rotatably sleeved on the second rivet (12).
5. The adaptable car seat lock body according to claim 4, characterized in that: The second rivet (12) is rotatably fitted with a driving pawl (13), the driving pawl (13) is provided with a limiting hole (14), the anti-return pawl (3) is riveted with a limiting pin (31), the limiting pin (31) passes through the limiting hole (14); A first torsion spring (15) is fitted on the first rivet (11), one end of the first torsion spring (15) is connected to the base plate (1), and the other end of the first torsion spring (15) is connected to the ratchet (2); A second torsion spring (16) is fitted on the second rivet (12). One end of the second torsion spring (16) is connected to the base plate (1), and the other end of the second torsion spring (16) is connected to the drive pawl (13).
6. The adaptable car seat lock body according to claim 5, characterized in that: An unlocking lever (17) is provided on the drive pawl (13).