Novel locking structure of automobile seat angle adjuster

Abstract

The utility model relates to the technical field of automobile seat angle adjusters, and discloses a novel locking structure of an automobile seat angle adjuster, which comprises a support shell, and a limit locking mechanism is arranged on the inner back of the support shell close to the left side. A handle is pulled when the angle between a seat and a backrest is adjusted through a limiting locking mechanism, the handle enables a guide rod and a sliding ring to move leftwards through cooperation of a hinge frame, the guide rod moves leftwards to drive a fixed arc-shaped rack to move leftwards, and other gears are in a non-meshed state; then, the angle between the seat and the backrest is adjusted, a handle is loosened after adjustment, and at the moment, a guide rod and a sliding ring can move rightwards through the elastic force of a spring, so that an arc-shaped rack moves rightwards to be meshed with a gear, the gear is limited, a rotating wall is further limited, and the angle between the seat and the backrest is fixed; meanwhile, the handle can be restored to the original position, and the seat and the backrest can be effectively limited and locked through the limiting and locking mode.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat recliners, in particular to a novel locking structure of an automobile seat recliner. Background Art

[0002] Car seats are one of the indispensable parts of a car. When riding in a car, in order to maintain a comfortable seat, users need to use a car seat recliner to adjust the seat back angle.

[0003] According to announcement number CN 208530348 U, a new structure of a car seat recliner includes a gear cover, a gear bowl, a small gear plate, a small gear plate driving mechanism, an edge ring and a socket spring; the gear cover is provided with a first shaft hole, a group of first positioning bosses are provided on the outer side of the gear cover, a gear plate positioning boss is provided on the inner side of the gear cover, a sliding groove is formed between two adjacent gear plate positioning bosses, and the gear cover is provided with a socket spring reserved groove and a socket spring hook groove.

[0004] This device is not only compact and simple in structure, but also easy to assemble. Two springs act to lock the first position. Even if one spring fails in extreme circumstances, the locking function of the single spring remains intact. A spring acting on the central axis also assists in achieving the locking function, thereby increasing the safety of the recliner. During the second position, two force-bearing contact surfaces act simultaneously, providing reliable locking, minimal clearance, easy unlocking, high strength, and excellent flexibility. It also has a wide range of applications, allowing connection to any seat. It is also easy to manufacture and has low production costs. However, the device's limit lock for seat and backrest adjustment is unstable and prone to movement. Utility Model Content

[0005] The purpose of the present utility model is to provide a novel locking structure for a car seat recliner to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a novel locking structure for a car seat recliner, comprising a support shell, a protective cover being clamped to the front of the support shell, a rotation mechanism being provided on the inner back of the support shell, and a limited locking mechanism being provided on the inner back of the support shell near the left side;

[0007] The rotating mechanism includes a first rotating shaft, which is arranged on the back side of the inner wall of the support shell near the top, and a rotating arm is fixedly connected to the surface of the first rotating shaft near the front end. The back side of the inner wall of the support shell is rotatably connected to the second rotating shaft, and a coil spring is fixedly connected to the surface of the second rotating shaft near the front end. A fixed block is fixedly connected to the front side of the rotating arm near the left bottom, and a gear is fixedly connected to the surface of the second rotating shaft.

[0008] Preferably, a hole matching the first rotating shaft is opened near the top on the back side of the inner wall of the support shell, and the surface of the first rotating shaft passes through and is rotatably connected to the hole, and the rear end of the first rotating shaft is fixedly connected to the front end of the connecting shaft between the seat and the backrest.

[0009] Preferably, the other end of the coil spring is fixedly connected to the surface of the fixed block, the bottom of the rotating arm is in an arc-shaped tooth shape and meshes with the gear, the top of the support shell is provided with a groove, and the rotating arm is located in the groove.

[0010] Preferably, the limit locking mechanism includes a third rotating shaft, the third rotating shaft is rotatably connected to the back side of the inner wall of the support shell near the left side, the surface of the third rotating shaft is fixedly connected to a handle, the back side of the inner wall of the support shell is fixedly connected to a fixed seat, a fixed cylinder is provided on the left side of the fixed seat, a fixed ring is fixedly connected to the left side of the inner wall of the fixed cylinder, the inner ring of the fixed ring is slidably connected to a guide rod left and right, the surface of the guide rod is fixedly connected to a sliding ring, a spring is sleeved on the surface of the guide rod between the fixed ring and the sliding ring, the right end of the guide rod is fixedly connected to an arc rack, and the left end of the guide rod is hinged to a hinged frame.

[0011] Preferably, a hole matching the fixing cylinder is opened on the left side of the fixing seat, and the surface of the fixing cylinder passes through and is fixedly connected to the hole.

[0012] Preferably, the outer wall of the sliding ring is slidably connected to the inner wall of the fixed cylinder, one end of the spring is fixedly connected to the right side of the fixed ring, and the other end of the spring is fixedly connected to the left side of the sliding ring.

[0013] Preferably, the arc-shaped rack is engaged with the gear, and the right end of the handle is hinged to the left side of the hinged frame.

[0014] Compared with the prior art, the present invention provides a new locking structure for a car seat recliner, which has the following beneficial effects:

[0015] 1. The new locking structure of the car seat recliner uses a rotating mechanism to pull the handle upward so that the arc-shaped rack and the gear do not mesh. If the driver does not apply force to the backrest, the backrest will move toward the seat due to the elastic force of the coil spring, thereby driving the rotating arm to move toward the seat, further driving the gear to rotate clockwise. If the driver pushes the backrest, the backrest will move in the opposite direction of the seat, thereby driving the rotating arm to move in the opposite direction of the seat, further driving the gear to rotate counterclockwise. This adjustment method can easily adjust the angle between the seat and the backrest, so that the driver's sitting posture is in a comfortable state.

[0016] 2. The new locking structure of the car seat recliner uses a limit locking mechanism to adjust the angle between the seat and the backrest by pulling the handle. The handle moves the guide rod and the sliding ring to the left through the cooperation of the hinge frame, and the movement of the sliding ring squeezes the spring. The leftward movement of the guide rod drives the fixed arc-shaped rack to move to the left, leaving the other gears in an unengaged state. Then the angle between the seat and the backrest is adjusted. After the adjustment, the handle is released. At this time, the guide rod and the sliding ring move to the right by the elastic force of the spring, thereby moving the arc-shaped rack to the right and engaging with the gear, limiting the gear and further limiting the rotating wall to fix the angle between the seat and the backrest. At the same time, the handle will return to its original position. This limit locking method can effectively limit and lock the seat and backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the interior of the structural support shell of the utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the rotating mechanism of the utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the structural gear of the utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the limit locking mechanism of the utility model;

[0023] Figure 6 This is a front sectional perspective schematic diagram of the fixing seat and fixing cylinder of the utility model structure.

[0024] In the figure: 1. Support shell; 2. Protective cover; 3. Rotating mechanism; 31. First rotating shaft; 32. Rotating arm; 33. Second rotating shaft; 34. Coil spring; 35. Fixed block; 36. Gear; 4. Limit locking mechanism; 41. Third rotating shaft; 42. Handle; 43. Fixed seat; 44. Fixed cylinder; 45. Fixed ring; 46. Guide rod; 47. Sliding ring; 48. Spring; 49. Arc rack; 411. Articulated frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] Example 1

[0029] See also Figure 1-4 The utility model provides a technical solution: a new locking structure for a car seat recliner, comprising a support shell 1, a protective cover 2 being clamped on the front of the support shell 1, a rotating mechanism 3 being provided on the inner back of the support shell 1, and a limited locking mechanism 4 being provided on the inner back of the support shell 1 near the left side;

[0030] The rotating mechanism 3 includes a first rotating shaft 31, which is arranged on the back side of the inner wall of the supporting shell 1 near the top, and a rotating arm 32 is fixedly connected to the surface of the first rotating shaft 31 near the front end. The back side of the inner wall of the supporting shell 1 is rotatably connected to the second rotating shaft 33, and a coil spring 34 is fixedly connected to the surface of the second rotating shaft 33 near the front end. A fixed block 35 is fixedly connected to the front side of the rotating arm 32 near the bottom on the left side, and a gear 36 is fixedly connected to the surface of the second rotating shaft 33.

[0031] A hole matching the first rotating shaft 31 is opened near the top on the back of the inner wall of the support shell 1, and the surface of the first rotating shaft 31 passes through and is rotatably connected to the hole. The rear end of the first rotating shaft 31 is fixedly connected to the front end of the connecting shaft between the seat and the backrest.

[0032] The other end of the coil spring 34 is fixedly connected to the surface of the fixed block 35. The bottom of the rotating arm 32 is in an arc-shaped tooth shape and meshes with the gear 36. A groove is opened on the top of the support shell 1, and the rotating arm 32 is located in the groove.

[0033] Example 2

[0034] See also Figure 5-6, and on the basis of embodiment 1, a limit locking mechanism 4 is further obtained.

[0035] The limit locking mechanism 4 includes a third rotating shaft 41, which is rotatably connected to the back side of the inner wall of the support shell 1 near the left side. A handle 42 is fixedly connected to the surface of the third rotating shaft 41, and a fixed seat 43 is fixedly connected to the back side of the inner wall of the support shell 1. A fixed cylinder 44 is provided on the left side of the fixed seat 43, and a fixed ring 45 is fixedly connected to the left side of the inner wall of the fixed cylinder 44. The inner ring of the fixed ring 45 is connected to a guide rod 46 for sliding left and right. A sliding ring 47 is fixedly connected to the surface of the guide rod 46. A spring 48 is sleeved on the surface of the guide rod 46 between the fixed ring 45 and the sliding ring 47. The right end of the guide rod 46 is fixedly connected to an arc rack 49, and the left end of the guide rod 46 is hinged to a hinged frame 411.

[0036] A hole matching the fixing tube 44 is formed on the left side of the fixing seat 43 , and the surface of the fixing tube 44 passes through and is fixedly connected to the hole.

[0037] The outer wall of the sliding ring 47 is slidably connected to the inner wall of the fixed tube 44 , one end of the spring 48 is fixedly connected to the right side of the fixed ring 45 , and the other end of the spring 48 is fixedly connected to the left side of the sliding ring 47 .

[0038] The arc-shaped rack 49 is meshed with the gear 36 , and the right end of the handle 42 is hinged to the left side of the hinge frame 411 .

[0039] In actual operation, when this device is used, the handle 42 is pulled upward so that the arc-shaped rack 49 is not meshed with the gear 36. If the driver does not apply force to the backrest, the backrest will move toward the seat due to the elastic force of the coil spring 34, thereby driving the rotating arm 32 to move toward the seat, and further driving the gear 36 to rotate clockwise. If the driver pushes the backrest, the backrest will move in the opposite direction of the seat, thereby driving the rotating arm 32 to move in the opposite direction of the seat, and further driving the gear 36 to rotate counterclockwise. This adjustment method can easily adjust the angle between the seat and the backrest to make the driver's sitting posture comfortable.

[0040] When adjusting the angle between the seat and the backrest, pull the handle 42, and the handle 42 will move the guide rod 46 and the sliding ring 47 to the left through the cooperation of the hinge frame 411, and the movement of the sliding ring 47 will squeeze the spring 48. The leftward movement of the guide rod 46 will drive the fixed arc-shaped rack 49 to move to the left, so that the other gears 36 are in a non-engaged state. Then, the angle between the seat and the backrest is adjusted again. After adjustment, release the handle 42. At this time, the guide rod 46 and the sliding ring 47 will move to the right through the elastic force of the spring 48, thereby causing the arc-shaped rack 49 to move to the right and engage with the gear 36, limiting the gear 36 and further limiting the rotating wall to fix the angle between the seat and the backrest. At the same time, the handle 42 will also return to its original position. This limit locking method can effectively limit and lock the seat and the backrest.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A novel locking structure for a car seat recliner, comprising a support shell (1), characterized in that: The front of the support shell (1) is clamped with a protective cover (2), the inner back of the support shell (1) is provided with a rotation mechanism (3), and the inner back of the support shell (1) is provided with a limited locking mechanism (4) near the left side; The rotating mechanism (3) comprises a first rotating shaft (31), the first rotating shaft (31) being arranged on the back side of the inner wall of the support shell (1) near the top, a rotating arm (32) being fixedly connected to the surface of the first rotating shaft (31) near the front end, a second rotating shaft (33) being rotatably connected to the back side of the inner wall of the support shell (1), a coil spring (34) being fixedly connected to the surface of the second rotating shaft (33) near the front end, a fixing block (35) being fixedly connected to the front side of the rotating arm (32) near the left bottom, and a gear (36) being fixedly connected to the surface of the second rotating shaft (33).

2. The novel locking structure of the car seat recliner according to claim 1 is characterized in that: A hole matching the first rotating shaft (31) is provided on the back side of the inner wall of the support shell (1) near the top, and the surface of the first rotating shaft (31) passes through and is rotatably connected to the hole, and the rear end of the first rotating shaft (31) is fixedly connected to the front end of the connecting shaft between the seat and the backrest.

3. The novel locking structure of the car seat recliner according to claim 1 is characterized in that: The other end of the coil spring (34) is fixedly connected to the surface of the fixed block (35). The bottom of the rotating arm (32) is in the shape of an arc-shaped tooth and meshes with the gear (36). A groove is provided on the top of the support shell (1), and the rotating arm (32) is located in the groove.

4. The novel locking structure of the car seat recliner according to claim 1 is characterized in that: The limit locking mechanism (4) includes a third rotating shaft (41), the third rotating shaft (41) is rotatably connected to the back side of the inner wall of the support shell (1) near the left side, the surface of the third rotating shaft (41) is fixedly connected to a handle (42), the back side of the inner wall of the support shell (1) is fixedly connected to a fixing seat (43), a fixing cylinder (44) is provided on the left side of the fixing seat (43), a fixing ring (45) is fixedly connected to the left side of the inner wall of the fixing cylinder (44), the inner ring of the fixing ring (45) is slidably connected to a guide rod (46) on the left and right, the surface of the guide rod (46) is fixedly connected to a sliding ring (47), the surface of the guide rod (46) is sleeved with a spring (48) between the fixing ring (45) and the sliding ring (47), the right end of the guide rod (46) is fixedly connected to an arc-shaped rack (49), and the left end of the guide rod (46) is hinged to a hinge frame (411).

5. The novel locking structure of the car seat recliner according to claim 4 is characterized in that: A hole matching the fixing cylinder (44) is provided on the left side of the fixing seat (43), and the surface of the fixing cylinder (44) passes through and is fixedly connected to the hole.

6. The novel locking structure of the car seat recliner according to claim 4 is characterized in that: The outer wall of the sliding ring (47) is slidably connected to the inner wall of the fixed cylinder (44) in a left-right manner. One end of the spring (48) is fixedly connected to the right side of the fixed ring (45), and the other end of the spring (48) is fixedly connected to the left side of the sliding ring (47).

7. The novel locking structure of the car seat recliner according to claim 4 is characterized in that: The arc-shaped rack (49) is meshed with the gear (36), and the right end of the handle (42) is hinged to the left side of the hinge frame (411).

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