Electric unlocking mechanism for electric slide rail of seat

Abstract

A seat electric slide rail electric unlocking mechanism, comprising a motor, a motor connecting rod assembly, a drive shaft, a sleeve, a guide plate, a compression spring, a locking pin, a limit plate, and a slide rail locking hole; wherein the motor drives the drive shaft to move up and down through the motor connecting rod assembly; the sleeve is fixed on the upper slide rail, the bottom of the sleeve is fixedly connected to the guide plate, the drive shaft passes through the sleeve and is fixedly connected to the limit plate below the guide plate, a first outer flange is arranged on both sides of the guide plate, a plurality of guide holes are processed on the first outer flange, a second outer flange is arranged on both sides of the limit plate, a plurality of locking pins are arranged at intervals on the second outer flange; the locking pin comprises a locking part, a limiting part, and a guiding part, the locking part is used to cooperate with the slide rail locking hole on the lower slide rail for locking; the guiding part is arranged on the upper side of the second outer flange, and the top end of the compression spring is extended to the outside of the guide hole of the first outer flange after the guide part is sleeved. The unlocking mechanism adopts double-row locking pins for locking, with a large number of locking pins and a higher locking strength.

Description

Technical Field

[0001] The invention belongs to the field of unlocking devices for automobile seat slide rails, and in particular relates to an electric unlocking mechanism for an electric seat slide rail. Background Art

[0002] Existing high-end automobile seat slide rail locking assemblies all use electric unlocking mechanisms, which mainly use electric drivers to adjust and lock the seat position. For example: Chinese patent CN 206841216 U discloses "an electromagnetic automobile seat slide rail automatic unlocking mechanism". However, the existing electric unlocking mechanism has a complex structure and is limited by the structure. The space for arranging the lock pins is limited, the number of lock pins is small, and the locking strength is low. Summary of the invention

[0003] In view of the above-mentioned technical problems and defects, the object of the present invention is to provide an electric unlocking mechanism for a seat electric slide rail, which adopts double-row locking pins, has a large number of locking pins, and has a higher strength of the locking system. The electric locking pins are independently arranged, with higher locking accuracy and a small locking step distance, so that the locking function of any position can be realized.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] A seat electric slide rail electric unlocking mechanism, comprising a motor, a motor connecting rod assembly, a drive shaft, a shaft sleeve, a guide plate, a compression spring, a locking pin, a limit plate, and a slide rail locking hole; wherein, the motor is connected to the motor connecting rod assembly, and the motor connecting rod assembly is fixedly connected to the drive shaft, and the movement of the motor drives the movement of the motor connecting rod assembly, thereby driving the drive shaft to move up and down; the shaft sleeve is fixed on the upper slide rail, the bottom of the shaft sleeve is fixedly connected to the guide plate, and the drive shaft is fixedly connected to the limit plate below the guide plate after passing through the shaft sleeve, and first outer flanges are arranged on both sides of the guide plate, and a plurality of guide flanges are processed on the first outer flanges Toward the hole, second outer flanges are arranged on both sides of the limiting plate, and a plurality of locking pins are arranged at intervals on the second outer flange, and the locking pins include a locking portion, a limiting portion, and a guiding portion which are arranged in sequence from bottom to top; wherein, the locking portion passes through the second outer flange and extends to the bottom of the second outer flange, and the locking portion is used to cooperate with the sliding rail locking hole on the lower sliding rail for locking; the limiting portion is used to limit the downward movement stroke of the locking portion, and the guiding portion is arranged on the upper side of the second outer flange, and after a compression spring is sleeved on the guiding portion, its top end passes through the guide hole on the first outer flange and extends to the outside of the guide hole.

[0006] As a preferred embodiment of the present invention, the motor connecting rod assembly includes an n-type lifting frame, lifting rods arranged on both sides of the n-type lifting frame, and a rotating sleeve installed at the center position of the n-type lifting frame and threadedly connected to the n-type lifting frame; wherein, the rotating sleeve is connected to the output shaft of the motor, and the rotating sleeve is driven to rotate by the motor, and the other end of the lifting rod is inserted into the driving shaft and fixedly connected to the driving shaft.

[0007] As a preferred embodiment of the present invention, the first outer flange is an L-shaped structure, and a plurality of guide holes are processed on the horizontal portion of the first outer flange; the second outer flange is an L-shaped structure, and a plurality of locking pins are arranged at intervals on the horizontal portion of the second outer flange.

[0008] As a preferred embodiment of the present invention, the locking portion of the locking pin is a square pin, and the guiding portion of the locking pin is a round pin.

[0009] As a preferred embodiment of the present invention, the slide rail locking holes are relatively independently and continuously arranged on the lower slide rail, and the spacing between two adjacent locking pins is consistent with the length of a single slide rail locking hole.

[0010] As a preferred embodiment of the present invention, weight-reducing holes are processed on the guide plate.

[0011] Advantages and beneficial effects of the present invention:

[0012] (1) The electric unlocking mechanism provided by the present invention has a simple structure and is easy to use. The unlocking mechanism adopts double-row lock pins for locking, has a large number of lock pins, and has a higher strength of the locking system.

[0013] (2) The electric lock pin on the electric unlocking mechanism provided by the present invention is independently arranged, the locking accuracy is higher, the locking step distance is small, and the locking function at any position can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the electric unlocking mechanism of the present invention;

[0015] Figure 2 It is a partial schematic diagram of the electric unlocking mechanism of the present invention;

[0016] Figure 3 is a schematic diagram of the end portion of the electric unlocking mechanism of the present invention;

[0017] Figure 4 It is a schematic diagram of the overall structure of the lock pin of the present invention;

[0018] Figure 5 It is a schematic diagram of the dynamic unlocking mechanism of the present invention installed on the slide rail.

[0019] Figure numerals: motor 1, motor connecting rod assembly 2, drive shaft 3, sleeve 4, guide plate 5, compression spring 6, locking pin 7, limit plate 8, slide rail locking hole 9, N-type lifting frame 21, lifting rod 22, rotating sleeve 23, first outer flange 51, guide hole 52, locking part 71, limit part 72, guide part 73, second outer flange 81. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "inside", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] See also Figures 1 to 5The electric unlocking mechanism of an electric slide rail of a seat provided by the present invention comprises a motor 1, a motor connecting rod assembly 2, a driving shaft 3, a shaft sleeve 4, a guide plate 5, a compression spring 6, a locking pin 7, a limiting plate 8, and a slide rail locking hole 9, wherein the motor 1 is connected to the motor connecting rod assembly 2, and the motor connecting rod assembly 2 is fixedly connected to the driving shaft 3, and the movement of the motor drives the movement of the motor connecting rod assembly, thereby driving the driving shaft 3 to move up and down; the shaft sleeve 4 is fixed on the upper slide rail A, and the bottom of the shaft sleeve 4 is fixedly connected to the guide plate 5, and the driving shaft 3 is fixedly connected to the limiting plate 8 below the guide plate 5 after passing through the shaft sleeve 4, and the first outer flange 51 is arranged on both sides of the guide plate 5, and the first outer flange 51 is an L-shaped structure, and a plurality of guide holes 5 are processed on the horizontal part of the first outer flange 51. 2. The two sides of the limiting plate 8 are provided with second outer flanges 81, and the second outer flanges 81 are of L-shaped structure. A plurality of locking pins 7 are arranged at intervals on the horizontal part of the second outer flange 81, and the locking pin 7 comprises a locking portion 71, a limiting portion 72, and a guiding portion 73 which are arranged in sequence from bottom to top; wherein, the locking portion 71 passes through the second outer flange 81 and extends to the bottom of the second outer flange 81, and the locking portion 81 is used to cooperate with the slide rail locking hole 9 on the lower slide rail B for locking; the limiting portion 72 is used to limit the downward movement stroke of the locking portion 71, and the guiding portion 73 is arranged on the upper part of the second outer flange 81, and after the compression spring 6 is sleeved on the guiding portion 72, its top end passes through the guide hole 52 on the first outer flange 51 and extends to the outside of the guide hole.

[0024] Continue reading Figure 1 The motor connecting rod assembly 2 includes an n-type lifting frame 21, lifting rods 22 arranged on both sides of the n-type lifting frame, and a rotating sleeve 23 installed at the center position of the n-type lifting frame and threadedly connected to the n-type lifting frame; wherein the rotating sleeve 23 is connected to the output shaft of the motor 1, and the rotating sleeve is driven to rotate by the motor, and the other end of the lifting rod 22 is inserted into the driving shaft 3 and fixedly connected to the driving shaft 3.

[0025] Furthermore, the locking portion 71 of the lock pin is a square pin, and the guide portion 73 of the lock pin is a round pin. The square pin design of the lock pin 71 increases the contact area between the lock pin and the slide rail locking hole 9, and has stronger cutting resistance. In addition, in order to reduce the overall weight of the unlocking mechanism, a weight reduction hole can be processed on the guide plate 5.

[0026] The unlocking principle of the unlocking mechanism of the present invention is: the motor 1 drives the driving shaft 3 to move upward through the motor connecting rod assembly 2, and the driving shaft 3 drives the limit plate 8 and the locking pin 7 to move upward. At this time, the compression spring 6 is compressed, and the locking pin 7 moves upward along the guide hole 52 on the guide plate 5, and disengages from the slide rail locking hole 9 of the lower slide rail, thereby unlocking the slide rail.

[0027] The locking principle of the unlocking mechanism of the present invention is: the motor 1 drives the driving shaft 3 to move downward through the motor connecting rod assembly 2, the driving shaft 3 drives the limit plate 8 to move downward, and the locking pin 7 moves downward under the elastic force of the compression spring 6 and locks into the slide rail locking hole 9 of the lower slide rail to achieve the locking of the slide rail.

[0028] The slide rail locking holes 9 of the unlocking mechanism of the present invention are relatively independently and continuously arranged on the lower slide rail, and the spacing between two adjacent locking pins is consistent with the length of a single slide rail locking hole 9. In this way, the locking function at any position is guaranteed by designing the distance between the locking pin 7 and the slide rail locking hole 9 and the locking structure.

[0029] The above description is only a preferred embodiment of the present application and is not intended to limit the present application.

Claims

1. An electric unlocking mechanism for an electric seat slide rail, characterized in that: The invention comprises a motor, a motor connecting rod assembly, a drive shaft, a bushing, a guide plate, a compression spring, a locking pin, a limit plate, and a slide rail locking hole, wherein the motor is connected to the motor connecting rod assembly, and the motor connecting rod assembly is fixedly connected to the drive shaft. The movement of the motor drives the movement of the motor connecting rod assembly, thereby driving the drive shaft to move up and down; the bushing is fixed on the upper slide rail, the bottom of the bushing is fixedly connected to the guide plate, and the drive shaft is fixedly connected to the limit plate below the guide plate after passing through the bushing, and first outer flanges are arranged on both sides of the guide plate, and a plurality of guide holes are processed on the first outer flange. The plate is provided with second outer flanges on both sides, and a plurality of locking pins are arranged at intervals on the second outer flanges, and the locking pins include a locking portion, a limiting portion, and a guiding portion which are arranged in sequence from bottom to top; wherein the locking portion passes through the second outer flange and extends to the bottom of the second outer flange, and the locking portion is used to cooperate with the slide rail locking hole on the lower slide rail for locking; the limiting portion is used to limit the downward movement of the locking portion, and the guiding portion is arranged on the upper side of the second outer flange, and after a compression spring is sleeved on the guiding portion, the top end of the compression spring passes through the guide hole on the first outer flange and extends to the outside of the guide hole; The motor connecting rod assembly includes an n-type lifting frame, lifting rods arranged on both sides of the n-type lifting frame, and a rotating sleeve installed at the center of the n-type lifting frame and threadedly connected to the n-type lifting frame; wherein the rotating sleeve is connected to the output shaft of the motor, and the rotating sleeve is driven to rotate by the motor, and the other end of the lifting rod is inserted into the driving shaft and fixedly connected to the driving shaft; The first outer flange is an L-shaped structure, and a plurality of guide holes are processed on the horizontal portion of the first outer flange. The second outer flange is an L-shaped structure, and a plurality of locking pins are arranged at intervals on the horizontal portion of the second outer flange.

2. The electric unlocking mechanism for an electric seat slide rail according to claim 1, characterized in that: The locking portion of the lock pin is a square pin, and the guiding portion of the lock pin is a round pin.

3. The electric unlocking mechanism for an electric seat slide rail according to claim 1, characterized in that: The slide rail locking holes are relatively independently and continuously arranged on the lower slide rail, and the spacing between two adjacent locking pins is consistent with the length of a single slide rail locking hole.

4. The electric unlocking mechanism for an electric seat slide rail according to claim 1, characterized in that: The guide plate is machined with weight-reducing holes.

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