Tooth groove locking type automobile seat sliding rail
By combining a toothed locking design with a spring-loaded mechanism, the problem of instability in traditional seat rails under complex driving conditions is solved, achieving stable locking and personalized position adjustment of the seat, thus improving the convenience and comfort of seat use.
Patent Information
- Application Number
- CN202520622039.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Traditional car seat rails have unstable locking mechanisms, making it difficult to maintain seat stability under complex driving conditions. Furthermore, their adjustment range and precision are insufficient, failing to meet personalized needs.
The seat adopts a toothed locking design, which uses a rotating shaft to drive the Z-shaped plate and toothed block to switch between the first and second toothed grooves to lock and unlock the seat. Combined with a rebound mechanism, it achieves automatic rebound, improving the stability and ease of adjustment of the seat.
It achieves stable locking of the seat under complex driving conditions, meets the needs of personalized position adjustment, improves the convenience and comfort of use, and reduces safety hazards.
Smart Images
Figure CN223890848U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toothed locking car seat slide rail technology, specifically a toothed locking car seat slide rail. Background Technology
[0002] In automotive interior systems, seat rails are key components for adjusting seat positions, and their performance directly impacts the user experience and safety of passengers. With the rapid development of the automotive industry and consumers' increasing demands for comfort and functionality, traditional automotive seat rails have gradually revealed numerous drawbacks.
[0003] Traditional seat rail locking mechanisms are often quite simple, making it difficult to meet the stringent stability requirements of seats under complex driving conditions. For example, common snap-locking structures are prone to loosening or even disengaging when the vehicle experiences severe bumps, rapid acceleration, or sudden braking, causing the seat to slide unexpectedly. This not only affects the comfort of passengers but also seriously threatens driving safety. Even some bolt-fastening locking methods are cumbersome to operate, making it difficult for passengers to easily adjust their seat position while driving, failing to meet the need for flexible seat repositioning in daily commutes.
[0004] In terms of ease of adjustment, traditional seat rails also have significant shortcomings in terms of adjustment range and precision. Some rails can only achieve adjustments to a limited number of fixed positions, failing to meet the personalized needs of drivers and passengers of different sizes. Moreover, the adjustment process lacks precise control, making it difficult for drivers and passengers to find the most suitable and comfortable seating position. Especially during long-distance driving, an uncomfortable seating position can easily lead to driver and passenger fatigue and increase driving risks. Utility Model Content
[0005] The purpose of this invention is to provide a toothed locking type automotive seat slide rail to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a toothed locking type car seat slide rail, including a slide rail base, a slide rail frame slidably connected to the slide rail base, limit rods symmetrically fixedly connected to the left and right sides of the front of the slide rail base, a locking mechanism provided on the back of the slide rail frame, and a spring-back mechanism provided on the right side of the slide rail frame.
[0007] The locking mechanism includes an arc-shaped fixing plate, which is symmetrically fixed to the back of the slide rail frame. A rotating sleeve is fixedly connected to the other end of the arc-shaped fixing plate. A rotating shaft is rotatably connected inside the rotating sleeve. A fixing sleeve is fixedly connected to the middle of the rotating shaft surface. A Z-shaped plate is fixedly connected to the surface of the fixing sleeve. A toothed block is fixedly connected to the bottom end of the Z-shaped plate. A first toothed groove is equidistantly opened on the top front of the slide rail seat. A second toothed groove is equidistantly opened on the top front of the slide rail frame. A first fixing ring is fixedly connected to the rotating shaft surface near the right end. A second fixing ring is fixedly connected to the rotating shaft surface near the right end. A torsion spring is sleeved between the first and second fixing rings on the rotating shaft surface.
[0008] Preferably, the rear end of the limiting rod extends into the sliding seat to limit the slider, so that the sliding frame can only move left and right a short distance within the sliding frame.
[0009] Preferably, the number of the second tooth grooves is less than the number of the first tooth grooves, and the tooth block is in the first and second tooth grooves by the rotation of the shaft.
[0010] Preferably, the first fixing ring is located to the left of the second fixing ring, one end of the torsion spring is fixedly connected to the right side of the first fixing ring, and the other end of the torsion spring is fixedly connected to the back of the slide rail frame near the right side.
[0011] Preferably, the rebound mechanism includes a guide rod, which is symmetrically and fixedly connected to the right side of the slide rail frame. Connecting plates are fixedly connected to the upper and lower sides of the slide rail seat near the right side. A limiting plate is fixedly connected to the right end of the guide rod, and a spring is sleeved on the surface of the guide rod between the connecting plate and the limiting plate.
[0012] Preferably, the connecting plate has symmetrical holes on the left side that match the guide rod, and the guide rod is slidably connected to the holes by passing through the surface of the guide rod.
[0013] Preferably, the left end of the spring is fixedly connected to the right side of the connecting plate, the right end of the spring is fixedly connected to the left side of the limiting plate, and the spring is in its natural state.
[0014] Compared with the prior art, this utility model provides a toothed locking type car seat slide rail, which has the following advantages:
[0015] 1. This toothed locking car seat slide rail, by rotating a pivot, drives the Z-shaped plate and toothed blocks fixed on its surface to move. The toothed blocks can freely switch between the first and second toothed grooves, thereby locking the slide rail frame in different positions within the slide rail seat. Passengers can conveniently and quickly adjust the fore-and-aft position of the seat according to their own needs, meeting the personalized requirements of people of different heights, improving the convenience and comfort of the seat. The rear end of the limiting rod extends into the sliding seat to limit the slider, ensuring that the slide rail frame can only move a short distance left and right within the slide rail seat. This design ensures that the seat can meet the needs of fine-tuning in daily use while avoiding the safety hazards that may arise from excessive seat sliding, and makes seat adjustment more precise, allowing passengers to find the most comfortable sitting posture.
[0016] 2. This toothed locking car seat slide rail features a spring-loaded mechanism that, through a combination of guide rods, connecting plates, limiting plates, and springs, enables the seat to automatically spring back after adjustment. When the seat is adjusted to the desired position and released, the spring force pushes the slide rail frame to automatically spring back to the initial or preset position, improving the convenience and accuracy of seat adjustment. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the sliding seat of this utility model;
[0020] Figure 3 This is a three-dimensional schematic diagram of the locking mechanism of this utility model;
[0021] Figure 4 This is a three-dimensional schematic diagram of the tooth block and the second tooth groove of this utility model.
[0022] Figure 5 This is a three-dimensional schematic diagram of the springback mechanism of this utility model.
[0023] In the diagram: 1. Slide rail seat; 2. Slide rail frame; 3. Limiting rod; 4. Locking mechanism; 41. Arc-shaped fixing plate; 42. Rotating sleeve; 43. Rotating shaft; 44. Fixing sleeve; 45. Z-shaped plate; 46. Tooth block; 47. First tooth groove; 48. Second tooth groove; 49. First fixing ring; 411. Second fixing ring; 412. Torsion spring; 5. Rebound mechanism; 51. Guide rod; 52. Connecting plate; 53. Limiting plate; 54. Spring. Detailed Implementation
[0024] 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.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] This utility model provides the following technical solution:
[0027] Example 1
[0028] Please see Figure 1-4 This utility model provides a technical solution: a toothed locking type car seat slide rail, including a slide rail base 1, a slide rail frame 2 slidably connected to the slide rail base 1, limit rods 3 symmetrically fixedly connected to the left and right sides of the front of the slide rail base 1, a locking mechanism 4 provided on the back of the slide rail frame 2, and a spring-back mechanism 5 provided on the right side of the slide rail frame 2.
[0029] The locking mechanism 4 includes an arc-shaped fixing plate 41, which is symmetrically fixed to the back of the slide rail frame 2. A rotating sleeve 42 is fixedly connected to the other end of the arc-shaped fixing plate 41. A rotating shaft 43 is rotatably connected inside the rotating sleeve 42. A fixing sleeve 44 is fixedly connected to the middle of the surface of the rotating shaft 43. A Z-shaped plate 45 is fixedly connected to the surface of the fixing sleeve 44. A toothed block 46 is fixedly connected to the bottom end of the Z-shaped plate 45. A first toothed groove 47 is equidistantly opened on the top front of the slide rail seat 1. A second toothed groove 48 is equidistantly opened on the top front of the slide rail frame 2. A first fixing ring 49 is fixedly connected to the surface of the rotating shaft 43 near the right end. A second fixing ring 411 is fixedly connected to the surface of the rotating shaft 43 near the right end. A torsion spring 412 is sleeved between the first fixing ring 49 and the second fixing ring 411 on the surface of the rotating shaft 43.
[0030] The rear end of the limiting rod 3 extends into the sliding seat to limit the slider, so that the sliding frame can only move left and right a short distance within the sliding frame.
[0031] The number of second tooth grooves 48 is less than the number of first tooth grooves 47, and the tooth block 46 is in the first tooth groove 47 and the second tooth groove 48 through the rotation of the rotating shaft 43.
[0032] The first fixing ring 49 is located to the left of the second fixing ring 411. One end of the torsion spring 412 is fixedly connected to the right side of the first fixing ring 49, and the other end of the torsion spring 412 is fixedly connected to the back of the slide rail 2 near the right side.
[0033] Example 2
[0034] Please see Figure 5 Furthermore, based on Example 1, a springback mechanism 5 was obtained.
[0035] The rebound mechanism 5 includes a guide rod 51, which is symmetrically and fixedly connected to the right side of the slide rail frame 2. The upper and lower sides of the slide rail seat 1 are fixedly connected to the connecting plate 52 near the right side. The right end of the guide rod 51 is fixedly connected to the limiting plate 53. A spring 54 is sleeved on the surface of the guide rod 51 between the connecting plate 52 and the limiting plate 53.
[0036] The connecting plate 52 has symmetrical holes on the left side that match the guide rod 51, and the guide rod 51 is slidably connected to the holes by passing through the surface of the guide rod 51.
[0037] The left end of spring 54 is fixedly connected to the right side of connecting plate 52, and the right end of spring 54 is fixedly connected to the left side of limit plate 53. Spring 54 is in its natural state.
[0038] In actual operation, when this device is in use, the torsion spring 412 is normally in a pre-tensioned state. One end of the torsion spring 412 is connected to the first fixing ring 49, and the other end is connected to the back of the slide rail 2. This connection method allows the torsion spring 412 to continuously apply a rotational force to the rotating shaft 43. Under the action of this force, the fixing sleeve 44, the Z-shaped plate 45, and the toothed block 46, which are fixedly connected to the rotating shaft 43, also receive corresponding torque. Under the action of the torque of the torsion spring 412, the toothed block 46 is tightly embedded in the first toothed groove 47 or the second toothed groove 48. When the seat needs to be locked in a certain position, the toothed block 46 falls precisely into the corresponding first toothed groove 47 and second toothed groove 48. Due to the torque of the torsion spring 412, the toothed block 46 and the first toothed groove 47 and second toothed groove 48 form a tight engagement, thereby stably fixing the slide rail 2 in the current position within the slide rail seat 1. This effectively prevents the seat from accidentally sliding due to external forces such as bumps and vibrations during vehicle operation. When the driver or passenger needs to adjust the seat position, an external force that overcomes the torque of the torsion spring 412 is applied to the locking mechanism 4, causing the rotating shaft 43 to rotate. The rotation of the rotating shaft 43 drives the fixing sleeve 44, the Z-shaped plate 45, and the toothed block 46 to rotate together, and the toothed block 46 gradually disengages from the currently embedded toothed groove. Then, the seat is slid, allowing the slide rail 2 to move within the slide rail. After adjustment, the external force applied to the rotating shaft 43 is released. Under the action of the torque of the torsion spring 412, the toothed block 46 quickly and accurately falls into the target first toothed groove 47 and second toothed groove 48, thus locking the seat in the new position. In this way, passengers can flexibly adjust the fore-and-aft position of the seats according to their own needs;
[0039] When the seat is not adjusted, the spring 54 in the rebound mechanism 5 is in its natural state, and the guide rod 51 is not subjected to any external force between the connecting plate 52 and the limiting plate 53. When the seat is adjusted, the external force is released, and the slide rail 2 begins to rebound under the action of the spring 54. The spring 54 pushes the limiting plate 53 and the guide rod 51 to move to the left, thereby driving the slide rail 2 to move to the left. When the slide rail 2 moves to the initial position or the preset position, the spring 54 and the resistance of the slide rail 2 reach a balance, and the rebound process ends.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A toothed locking type car seat slide rail, comprising a slide rail base (1), characterized in that: The slide rail base (1) is slidably connected to the slide rail frame (2) in the left and right. The slide rail base (1) is symmetrically fixedly connected to the left and right sides of the front side with limit rods (3). The slide rail frame (2) is provided with a locking mechanism (4) on the back side. The slide rail frame (2) is provided with a spring-back mechanism (5) on the right side. The locking mechanism (4) includes an arc-shaped fixing plate (41), which is symmetrically fixed to the back of the slide rail frame (2). A rotating sleeve (42) is fixedly connected to the other end of the arc-shaped fixing plate (41). A rotating shaft (43) is rotatably connected inside the rotating sleeve (42). A fixing sleeve (44) is fixedly connected to the middle of the surface of the rotating shaft (43). A Z-shaped plate (45) is fixedly connected to the surface of the fixing sleeve (44). The bottom end of the Z-shaped plate (45) is fixedly connected to... The slide rail base (1) has a toothed block (46), and the top front of the slide rail base (1) has a first toothed groove (47) at equal intervals. The top front of the slide rail frame (2) has a second toothed groove (48) at equal intervals. The surface of the rotating shaft (43) is fixedly connected to the right end with a first fixing ring (49). The surface of the rotating shaft (43) is fixedly connected to the right end with a second fixing ring (411). A torsion spring (412) is sleeved between the first fixing ring (49) and the second fixing ring (411) on the surface of the rotating shaft (43).
2. The toothed locking type automotive seat slide rail according to claim 1, characterized in that: The rear end of the limiting rod (3) extends into the sliding seat to limit the slider, so that the sliding frame can only move left and right a short distance within the sliding frame.
3. The toothed locking type automotive seat slide rail according to claim 1, characterized in that: The number of the second tooth groove (48) is less than the number of the first tooth groove (47), and the tooth block (46) is in the first tooth groove (47) and the second tooth groove (48) by the rotation of the shaft (43).
4. The toothed locking type automotive seat slide rail according to claim 1, characterized in that: The first fixing ring (49) is located to the left of the second fixing ring (411). One end of the torsion spring (412) is fixedly connected to the right side of the first fixing ring (49), and the other end of the torsion spring (412) is fixedly connected to the back of the slide rail frame (2) near the right side.
5. A toothed locking type automotive seat slide rail according to claim 1, characterized in that: The rebound mechanism (5) includes a guide rod (51), which is symmetrically fixedly connected to the right side of the slide rail frame (2). The upper and lower sides of the slide rail seat (1) are fixedly connected to a connecting plate (52) near the right side. The right end of the guide rod (51) is fixedly connected to a limiting plate (53). A spring (54) is sleeved on the surface of the guide rod (51) between the connecting plate (52) and the limiting plate (53).
6. The toothed locking type automotive seat slide rail according to claim 5, characterized in that: The connecting plate (52) has symmetrical holes on the left side that match the guide rod (51), and the guide rod (51) is slidably connected to the hole by passing through the surface of the guide rod (51) and sliding left and right.
7. A toothed locking type automotive seat slide rail according to claim 5, characterized in that: The left end of the spring (54) is fixedly connected to the right side of the connecting plate (52), and the right end of the spring (54) is fixedly connected to the left side of the limiting plate (53). The spring (54) is in its natural state.