Seat height adjusting mechanism

Abstract

The utility model relates to the technical field of automobile seat adjusting mechanisms, in particular to a seat height adjusting mechanism which comprises a fixed base, a push rod, a height adjusting assembly, a transmission assembly and a reset assembly. Height adjusting rotating shafts are installed on the sides, close to each other, of the fixed bases, handle adjusting rotating shafts are installed on the sides, away from each other, of the fixed bases respectively, the push rods are installed on the handle adjusting rotating shafts, and the height adjusting rotating shafts and the handle adjusting rotating shafts are eccentric. One end of each reset piece is connected with a handle adjusting rotating shaft, and the other end of each reset piece is connected with a push rod; the transmission assembly is installed on the handle adjusting rotating shaft. The height adjusting assembly is mounted on the height adjusting rotating shaft; through the reset piece, the push rod can return conveniently after the height of the seat is adjusted, the position of the push rod is kept consistent with the initial design position, the user experience is improved, through eccentric arrangement of the height adjusting rotating shaft and the handle adjusting rotating shaft, height adjustment of different gears of the seat is facilitated, and the height adjusting efficiency of the seat is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seat adjustment, and in particular to a seat height adjustment mechanism. Background Art

[0002] In the automotive industry, seat design is crucial to driving and riding comfort. Among them, the height adjustment function of the car seat is a key innovation to improve comfort and safety. It allows users to adjust the seat height according to personal needs, significantly optimizing the driving field of view and riding experience.

[0003] The core components of the automobile seat height adjustment mechanism are the height adjustment shaft and the handle adjustment shaft. Generally, the height adjustment shaft is coaxially designed with the handle adjustment shaft. When adjusting the seat height, the driver will first find the handle adjustment shaft on the side of the seat, and then rotate the handle adjustment shaft. As the handle adjustment shaft rotates, its coaxial height adjustment shaft also starts working. Since the axes of the two coincide, the rotation action will directly drive the height adjustment shaft to rotate. The other end of the height adjustment shaft is connected to the lifting mechanism of the seat. Therefore, as the shaft rotates, the lifting mechanism also starts to move, driving the seat to move up and down to achieve seat height adjustment.

[0004] With regard to the above-mentioned related technologies, the seat height adjustment shaft and the handle adjustment shaft are on the same axis. When the height of the car seat is adjusted, the position of the adjustment handle will change with the change of the seat height, resulting in a deviation between the position of the adjustment handle and the initial design position, affecting the user experience. Utility Model Content

[0005] In order to improve the user experience, the present application provides a seat height adjustment mechanism.

[0006] The seat height adjustment mechanism provided in this application adopts the following technical solution:

[0007] A seat height adjustment mechanism comprises a fixed base, a push rod, a height adjustment assembly, a transmission assembly and a reset assembly; a height adjustment shaft is installed on the side where the two opposite side walls of the fixed base are close to each other, and a handle adjustment shaft is installed on the side where the two opposite side walls of the fixed base are far away from each other, the push rod is fixedly installed on the handle adjustment shaft, and the height adjustment shaft is eccentrically arranged with the handle adjustment shaft; the reset assembly comprises two groups of reset parts, one group of reset parts is installed on one handle adjustment shaft, one end of the reset part is connected to the handle adjustment shaft, and the other end is connected to the push rod, and the reset part is used to reset the transmission assembly after the seat height is adjusted; the transmission assembly is installed on the handle adjustment shaft, and is used to drive the height adjustment assembly to adjust the seat height; the height adjustment assembly is installed on the height adjustment shaft, and the height adjustment assembly is used to adjust the height of the seat.

[0008] By adopting the above technical solution, force is applied to the push rod, and the push rod drives the height adjustment component and the height adjustment shaft to rotate synchronously to achieve the adjustment and fixation of the seat height. The force applied to the push rod is stopped, and the reset member drives the push rod back to the initial state to achieve the reset of the push rod. The set seat height adjustment mechanism facilitates the return of the push rod after the seat height is adjusted through the reset member, so that the position of the push rod is consistent with the initial design position, thereby improving the user experience. At the same time, through the eccentric setting of the height adjustment shaft and the handle adjustment shaft, it is convenient to achieve height adjustment of different gears of the seat, thereby improving the height adjustment efficiency of the seat.

[0009] In a specific possible implementation manner, the reset member includes a reset spring; the reset spring is wound around the handle adjustment shaft, both ends of the reset spring extend to the push rod, and the two ends of the reset spring are arranged close to each other.

[0010] By adopting the above technical solution, force is applied to the push rod, the push rod contacts the height adjustment component and moves synchronously around the height adjustment shaft, at which time the torsion arm of the return spring twists, and when the seat height adjustment is completed and the force applied to the push rod stops, the torsion arm of the return spring rotates in the opposite direction, and the torsion arms of the return spring tend from a state of being close to each other to a state of being parallel to each other, thereby driving the push rod to return to its initial position; the reset component provided, through the reset spring, facilitates the push rod to return to its initial position smoothly after the seat height adjustment is completed, thereby further improving the user experience.

[0011] In a specific feasible implementation scheme, the height adjustment assembly includes an adjusting member and a locking member, the adjusting member includes a first adjusting wheel, a second adjusting wheel and a height wire fixing wheel; the height wire fixing wheel is coaxially fixed on the height adjustment shaft; the first adjusting wheel and the second adjusting wheel are both coaxially fixed on the height adjustment shaft, and the first adjusting wheel and the second adjusting wheel are respectively located on both sides of the height wire fixing wheel; the locking member is installed on the fixed base, and is used for adjusting and fixing the seat height gear.

[0012] By adopting the above technical solution, force is applied to the push rod so that the push rod contacts the first adjusting wheel and the second adjusting wheel. When the push rod is pulled downward, the push rod rotates clockwise, and the push rod contacts the first adjusting wheel and gradually moves away from the second adjusting wheel. The first adjusting wheel drives the second adjusting wheel and the height pull wire fixing wheel to rotate synchronously, thereby adjusting the seat height downward. When the push rod is pulled upward, the push rod rotates counterclockwise, and the push rod contacts the second adjusting wheel and gradually moves away from the first adjusting wheel. The second adjusting wheel drives the first adjusting wheel and the height pull wire fixing wheel to rotate synchronously, thereby adjusting the seat height upward. The height adjustment component is arranged to facilitate the adjustment of the seat height through the height pull wire fixing wheel, the first adjusting wheel and the second adjusting wheel, and facilitates the position fixation of the seat height adjustment through the locking piece.

[0013] In a specific feasible implementation scheme, the locking member includes a locking shaft and two locking springs; a sliding groove is provided on the side wall of the fixed base, and the length direction of the sliding groove is arranged parallel to the axial direction of the height adjustment shaft; the locking shaft is installed in the sliding groove, and the locking shaft is axially parallel to the height adjustment shaft; the two locking springs are distributed along the length direction of the locking shaft, one end of the locking spring is connected to the locking shaft, and the other end is connected to the fixed base.

[0014] By adopting the above technical solution, the first adjusting wheel, the second adjusting wheel and the height adjustment shaft rotate synchronously, and the locking shaft moves along the length direction of the installation groove. At this time, the locking spring is stretched, so that the locking shaft disengages from the first tooth groove and the second tooth groove on the same horizontal line, and then the locking shaft enters an adjacent group of first tooth grooves and second tooth grooves along the rotation direction of the second adjusting wheel or the first adjusting wheel. At this time, the locking spring restores its original length to lock the position of the locking shaft; the provided locking member facilitates the adjustment of different gears of seat height through the locking shaft and the locking spring.

[0015] In a specific possible implementation scheme, two installation grooves are further provided on the side wall of the fixed base; the two installation grooves are respectively located at two ends of the sliding groove, and the length direction of the installation groove is arranged parallel to the radial direction of the height adjustment shaft.

[0016] By adopting the above technical solution, a fixed base is provided, which facilitates the smooth transition of the locking shaft at different height positions of the seat through the installation groove, thereby improving the user experience.

[0017] In a specific feasible implementation scheme, the transmission assembly includes a first paddle and a second paddle; a first mounting hole is opened on the side wall of the push rod, and the first mounting hole is arranged near a top section of the push rod, the first paddle is installed in the first mounting hole, and the first paddle is arranged at an angle, a second mounting hole is opened on the side wall of the push rod, and the second mounting hole is arranged near a bottom wall of the push rod, the second paddle is installed in the second mounting hole, and the second paddle is arranged at an angle.

[0018] By adopting the above technical solution, when the push rod is pulled downward, the first paddle contacts the first adjusting wheel and the second paddle moves away from the second adjusting wheel, thereby realizing synchronous movement of the push rod and the height adjustment assembly; when the push rod is pulled upward, the second paddle contacts the second adjusting wheel and the first paddle moves away from the first adjusting wheel, thereby realizing synchronous movement of the push rod and the height adjustment assembly; the transmission assembly is arranged, through the first paddle and the second paddle, to facilitate the eccentric setting between the height adjustment shaft and the handle adjustment shaft, so that when the seat height is adjusted upward or downward, there is no interference between the push rod and the height adjustment assembly, thereby realizing height adjustment of the seat to different gears.

[0019] In a specific implementation manner, the first adjusting wheel is provided with first tooth grooves, which are distributed circumferentially along the first adjusting wheel; the second adjusting wheel is provided with second tooth grooves, which are distributed circumferentially along the second adjusting wheel.

[0020] By adopting the above technical solution, the first adjusting wheel and the second adjusting wheel are provided, and cooperate with each other through the first tooth groove and the second tooth groove, so as to facilitate the synchronous locking of the first adjusting wheel and the second adjusting wheel by the locking member, thereby realizing the adjustment of different gears of seat height.

[0021] In a specific possible implementation scheme, a third mounting hole is provided on the height cable fixing wheel, the third mounting hole is parallel to the axis of the height cable fixing wheel, and the third mounting hole is used to fix the seat.

[0022] By adopting the above technical solution, the height pull wire fixing wheel is arranged, and the connection between the height pull wire fixing wheel and the seat is facilitated through the third mounting hole.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The designed seat height adjustment mechanism facilitates the return of the push rod after seat height adjustment through the reset part, so that the position of the push rod is consistent with the initial design position, improving the user experience. At the same time, through the eccentric setting of the height adjustment shaft and the handle adjustment shaft, it is easy to adjust the height of the seat to different gears, thereby improving the height adjustment efficiency of the seat.

[0025] 2. The designed seat height adjustment mechanism uses a return spring to facilitate the push rod to return smoothly to its initial position after the seat height adjustment is completed, further improving the user experience.

[0026] 3. The designed seat height adjustment mechanism, through the first paddle and the second paddle, is convenient for coordinating the eccentric setting between the height adjustment shaft and the handle adjustment shaft, so that when the seat height is adjusted upward or downward, there is no interference between the push rod and the height adjustment component, thereby realizing height adjustment of different gears of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the seat height adjustment mechanism of an embodiment of the present application.

[0028] Figure 2 It is a partial structural schematic diagram of the seat height adjustment mechanism of the embodiment of the present application, which is intended to illustrate the push rod.

[0029] Figure 3 It is a partial structural diagram of the seat height adjustment mechanism of the embodiment of the present application, which is intended to illustrate the height adjustment component.

[0030] Figure 4 It is a partial structural schematic diagram of the seat height adjustment mechanism of the embodiment of the present application, and is intended to illustrate the third mounting hole.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. fixed base; 11. height adjustment shaft; 12. handle adjustment shaft; 13. sliding groove; 14. mounting groove; 2. push rod; 3. height adjustment assembly; 31. adjusting member; 311. first adjusting wheel; 3111. first tooth groove; 312. second adjusting wheel; 3121. second tooth groove; 313. height pull wire fixing wheel; 3131. third mounting hole; 32. locking member; 321. locking shaft; 322. locking spring; 4. transmission assembly; 41. first paddle; 42. second paddle; 43. first mounting hole; 44. second mounting hole; 5. reset assembly; 51. reset member; 511. reset spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a seat height adjustment mechanism.

[0034] Reference Figure 1 and Figure 2 A seat height adjustment mechanism includes a fixed base 1, a push rod 2, a height adjustment component 3, a transmission component 4 and a reset component 5; a height adjustment shaft 11 is installed on the side where the two opposite side walls of the fixed base 1 are close to each other, and a handle adjustment shaft 12 is installed on the side where the two opposite side walls of the fixed base 1 are far away from each other, respectively, the push rod 2 is fixedly installed on the handle adjustment shaft 12, and the height adjustment shaft 11 is eccentrically arranged with the handle adjustment shaft 12; by applying force to the push rod 2, the push rod 2 is made to contact with the height adjustment component 3, and then the height adjustment component 3 and the push rod 2 move synchronously to achieve the height adjustment of the seat.

[0035] Reference Figure 2 In order to facilitate the synchronous movement of the push rod 2 and the height adjustment component 3, the transmission component 4 includes a first paddle 41 and a second paddle 42. A first mounting hole 43 is opened on the side wall of the push rod 2, and the first mounting hole 43 is arranged near the top section of the push rod 2. The first paddle 41 is installed in the first mounting hole 43, and the first paddle 41 is arranged at an angle. A second mounting hole 44 is opened on the side wall of the push rod 2, and the second mounting hole 44 is arranged near the bottom wall of the push rod 2. The second paddle 42 is installed in the second mounting hole 44, and the second paddle 42 is arranged at an angle.

[0036] Reference Figure 3 In order to facilitate the adjustment of the seat height so that the position of the push rod 2 is consistent with the initial design position, a reset component 5 is provided. The reset component 5 includes two groups of reset members 51. One group of reset members 51 is correspondingly installed on a handle adjustment shaft 12. One end of the reset member 51 is connected to the handle adjustment shaft 12, and the other end is connected to the push rod 2. The reset member 51 includes a reset spring 511. The reset spring 511 is wound around the handle adjustment shaft 12. Both ends of the reset spring 511 extend to the push rod 2, and the two ends of the reset spring 511 are arranged close to each other.

[0037] Reference Figure 3 The height adjustment assembly 3 includes an adjustment member 31 and a locking member 32. The adjustment member 31 includes a first adjustment wheel 311, a second adjustment wheel 312 and a height pull wire fixing wheel 313. The height pull wire fixing wheel 313 is coaxially fixed on the height adjustment shaft 11. The first adjustment wheel 311 and the second adjustment wheel 312 are coaxially fixed on the height adjustment shaft 11, and the first adjustment wheel 311 and the second adjustment wheel 312 are respectively located on both sides of the height pull wire fixing wheel 313. The first adjustment wheel 311 is provided with a first tooth groove 3111, and the first tooth groove 3111 is distributed circumferentially along the first adjustment wheel 311. The second adjustment wheel 312 is provided with a second tooth groove 3121, and the second tooth groove 3121 is distributed circumferentially along the second adjustment wheel 312.

[0038] The locking member 32 includes a locking shaft 321 and two locking springs 322. A sliding groove 13 is provided on the side wall of the fixed base 1, and the length direction of the sliding groove 13 is arranged parallel to the axial direction of the height adjustment shaft 11. The locking shaft 321 is installed in the sliding groove 13, and the locking shaft 321 is axially parallel to the height adjustment shaft 11. The two locking springs 322 are distributed along the length direction of the locking shaft 321. One end of the locking spring 322 is connected to the locking shaft 321, and the other end is connected to the fixed base 1. Two mounting grooves 14 are also provided on the side wall of the fixed base 1. The two mounting grooves 14 are respectively located at the two ends of the sliding groove 13, and the length direction of the mounting groove 14 is arranged parallel to the radial direction of the height adjustment shaft 11. Through the arranged mounting groove 14, it is easy to realize the smooth transition of the locking shaft 321 at different height positions of the seat, thereby improving the user experience.

[0039] Reference Figure 4 In order to facilitate the connection between the height pull wire fixing wheel 313 and the seat, a third mounting hole 3131 is opened on the height pull wire fixing wheel 313. The third mounting hole 3131 is parallel to the axial direction of the height pull wire fixing wheel 313, and the third mounting hole 3131 is used to fix the seat.

[0040] A feasible implementation principle of a seat height adjustment mechanism of the embodiment of the present application is: apply force to the push rod 2 so that the push rod 2 contacts both the first adjustment wheel 311 and the second adjustment wheel 312, then pull the push rod 2 downward, and the push rod 2 rotates clockwise. At this time, the first paddle 41 contacts the first adjustment wheel 311, and the second paddle 42 gradually moves away from the second adjustment wheel 312. The first paddle 41 drives the first adjustment wheel 311, the second adjustment wheel 312 and the height pull wire fixing wheel 313 to rotate synchronously, the torsion arm of the reset spring 511 rotates, and at the same time the locking shaft 321 moves in the sliding groove 13, the locking spring 322 stretches, and the locking shaft 321 is locked. The shaft 321 disengages from the first tooth groove 3111 and the second tooth groove 3121 which are on the same horizontal line, and then the locking shaft 321 enters an adjacent group of first tooth grooves 3111 and second tooth grooves 3121 as the first adjusting wheel 311 rotates, and stops applying force to the push rod 2. The first paddle 41 separates from the first adjusting wheel 311. At this time, the locking spring 322 restores its original length, so that the position of the locking shaft 321 is locked. At the same time, the torsion arm of the return spring 511 rotates in the opposite direction, and the torsion arms of the return spring 511 tend to be parallel to each other from a state of being close to each other, driving the push rod 2 to return to its initial position, thereby realizing downward adjustment of the seat height.

[0041] Apply force to the push rod 2 so that the push rod 2 contacts with the first adjusting wheel 311 and the second adjusting wheel 312, then pull the push rod 2 upward and rotate it counterclockwise. At this time, the second paddle 42 contacts with the second adjusting wheel 312 and the first paddle 41 gradually moves away from the first adjusting wheel 311. The second paddle 42 drives the second adjusting wheel 312, the first adjusting wheel 311 and the height wire fixing wheel 313 to rotate synchronously, and the torsion arm of the reset spring 511 rotates. At the same time, the locking shaft 321 moves in the sliding groove 13 and the locking spring 322 stretches. The locking shaft 321 moves from the second adjusting wheel 312 on the same horizontal line to the first adjusting wheel 311. The first tooth groove 3111 and the second tooth groove 3121 are disengaged, and then the locking shaft 321 enters an adjacent group of first tooth grooves 3111 and second tooth grooves 3121 as the second adjusting wheel 312 rotates, and the force applied to the push rod 2 stops, and the second paddle 42 is separated from the second adjusting wheel 312. At this time, the locking spring 322 restores its original length, so that the position of the locking shaft 321 is locked. At the same time, the torsion arm of the return spring 511 rotates in the opposite direction, and the torsion arms of the return spring 511 tend to be parallel to each other from a state of being close to each other, driving the push rod 2 to return to its initial position, thereby realizing the upward adjustment of the seat height.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A seat height adjustment mechanism, characterized in that: It comprises a fixed base (1), a push rod (2), a height adjustment component (3), a transmission component (4) and a reset component (5); A height adjustment shaft (11) is installed on the side where the two opposite walls of the fixed base (1) are close to each other, and a handle adjustment shaft (12) is installed on the side where the two opposite walls of the fixed base (1) are far away from each other, respectively. The push rod (2) is fixedly installed on the handle adjustment shaft (12), and the height adjustment shaft (11) and the handle adjustment shaft (12) are eccentrically arranged. The reset assembly (5) comprises two groups of reset members (51), one group of reset members (51) is mounted on one of the handle adjustment shafts (12), one end of the reset member (51) is connected to the handle adjustment shaft (12), and the other end is connected to the push rod (2), and the reset member (51) is used to reset the transmission assembly (4) after the seat height is adjusted; The transmission assembly (4) is mounted on the handle adjustment shaft (12) and is used to drive the height adjustment assembly (3) to adjust the height of the seat; The height adjustment component (3) is mounted on the height adjustment rotating shaft (11), and the height adjustment component (3) is used to adjust the height of the seat.

2. The seat height adjustment mechanism according to claim 1, characterized in that: The reset element (51) comprises a reset spring (511); The return spring (511) is wound around the handle adjustment shaft (12), both ends of the return spring (511) extend to the push rod (2), and the two ends of the return spring (511) are arranged close to each other.

3. The seat height adjustment mechanism according to claim 1, characterized in that: The height adjustment assembly (3) comprises an adjustment member (31) and a locking member (32); the adjustment member (31) comprises a first adjustment wheel (311), a second adjustment wheel (312) and a height wire fixing wheel (313); The height wire fixing wheel (313) is coaxially fixedly mounted on the height adjustment rotating shaft (11); The first adjusting wheel (311) and the second adjusting wheel (312) are both coaxially fixed on the height adjustment rotating shaft (11), and the first adjusting wheel (311) and the second adjusting wheel (312) are respectively located on both sides of the height pull-wire fixing wheel (313); The locking member (32) is mounted on the fixed base (1) and is used for adjusting and fixing the height position of the seat.

4. The seat height adjustment mechanism according to claim 3, characterized in that: The locking member (32) comprises a locking shaft (321) and two locking springs (322); A sliding groove (13) is provided on the side wall of the fixed base (1), and the length direction of the sliding groove (13) is arranged parallel to the axial direction of the height adjustment shaft (11); The locking shaft (321) is installed in the sliding groove (13), and the locking shaft (321) is axially parallel to the height adjustment shaft (11); The two locking springs (322) are distributed along the length direction of the locking shaft (321); one end of the locking spring (322) is connected to the locking shaft (321), and the other end is connected to the fixed base (1).

5. The seat height adjustment mechanism according to claim 4, characterized in that: The side wall of the fixed base (1) is also provided with two mounting grooves (14); The two installation grooves (14) are respectively located at two ends of the sliding groove (13), and the length direction of the installation groove (14) is arranged parallel to the radial direction of the height adjustment shaft (11).

6. The seat height adjustment mechanism according to claim 1, characterized in that: The transmission assembly (4) comprises a first paddle (41) and a second paddle (42); A first mounting hole (43) is provided on the side wall of the push rod (2), and the first mounting hole (43) is arranged close to a top section of the push rod (2); the first paddle (41) is installed in the first mounting hole (43), and the first paddle (41) is arranged obliquely; A second mounting hole (44) is provided on the side wall of the push rod (2), and the second mounting hole (44) is arranged close to a section of the bottom wall of the push rod (2); the second paddle (42) is installed in the second mounting hole (44), and the second paddle (42) is arranged obliquely.

7. The seat height adjustment mechanism according to claim 3, characterized in that: The first adjusting wheel (311) is provided with first tooth grooves (3111), and the first tooth grooves (3111) are distributed along the circumference of the first adjusting wheel (311); The second adjusting wheel (312) is provided with second tooth grooves (3121), and the second tooth grooves (3121) are distributed along the circumference of the second adjusting wheel (312).

8. The seat height adjustment mechanism according to claim 3, characterized in that: The height cable fixing wheel (313) is provided with a third mounting hole (3131), the third mounting hole (3131) is axially parallel to the height cable fixing wheel (313), and the third mounting hole (3131) is used to fix the seat.

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