Seat cushion rear end comfort compensation mechanism

Abstract

The application relates to a seat cushion rear end comfort compensation mechanism, which comprises a seat cushion frame assembly and a compensation support assembly. The seat cushion frame assembly comprises a frame unit, a front transverse pipe and a rear transverse pipe. The frame unit comprises a base, seat cushion side plates and a front connecting plate. The seat cushion frame assembly further comprises a height adjusting mechanism. The height adjusting mechanism comprises a height adjusting toothed fan which is fixed to the rear transverse pipe and hinged to the base. The compensation support assembly comprises a compensation support transverse pipe. The compensation support transverse pipe is rotatably sleeved with connecting side plates on both sides, and the connecting side plates are rotatably sleeved with the front transverse pipe. The compensation support transverse pipe is provided with a first connecting piece. The first connecting piece comprises a first connecting plate and a second connecting plate. One end of the first connecting plate is rotatably sleeved with the compensation support transverse pipe, and the other end is hinged with one end of the second connecting plate. The second connecting plate is fixed to the rear transverse pipe. The application effectively solves the problems of insufficient support of the seat cushion rear end, ergonomic design defects and structural stability of the existing seat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to a seat cushion rear end comfort compensation mechanism. BACKGROUND

[0002] In the use process of automobile seats, the seat height adjustment function is an important design to meet the needs of different users. However, when the seat height is lowered, the existing technology has many drawbacks:

[0003] 1. Insufficient support of the seat cushion rear end: as the seat height is lowered, the support structure of the seat cushion rear end cannot be effectively adjusted, resulting in the sinking of the seat cushion rear end and weakening the support force on the user's hips and waist. When sitting for a long time, the user is prone to fatigue, especially for long driving or riding situations, the discomfort will be more obvious. For example, during long-distance driving, the driver will frequently adjust the sitting posture due to insufficient support of the seat cushion rear end, which will distract attention and affect driving safety.

[0004] 2. Ergonomic design defects: the existing seat does not fully consider the ergonomic principles when the height is lowered, and the fit of the seat cushion rear end with the human body is poor. The pressure distribution of the human body on the seat is uneven, resulting in excessive local pressure, affecting blood circulation and reducing the comfort of riding. For example, users with a higher body shape will have concentrated pressure on their legs and waists after the seat height is lowered, which will easily cause aching.

[0005] 3. Structural stability problems: the structural stability of the seat cushion rear end of some seats is insufficient during the height lowering process, which is prone to shaking or abnormal noise. This not only affects the user's experience, but also may affect the service life of the seat, increasing maintenance costs and safety hazards. For example, the connecting parts of some seats will loosen after frequent height lowering operations, resulting in a decrease in the overall stability of the seat.

[0006] Therefore, it is currently necessary to develop a mechanism that can compensate for the comfort of the seat cushion rear end when the height is lowered. SUMMARY

[0007] To solve the above technical problems, the present application provides a seat cushion rear end comfort compensation mechanism that synchronously adjusts the support structure and angle of the seat cushion rear end when the seat height is lowered, effectively solving the problems of insufficient support of the seat cushion rear end, ergonomic design defects and structural stability of the existing seat, improving the fit of the seat cushion rear end with the human body, optimizing the pressure distribution, enhancing the structural stability, and significantly improving the riding comfort and safety of the user.

[0008] The technical scheme adopted by the present application to solve its technical problems is: a seat cushion rear end comfort compensation mechanism, comprising a seat cushion frame assembly, a compensation support assembly mounted on the seat cushion frame assembly; the seat cushion frame assembly comprises left and right frame units, a front cross tube and a rear cross tube arranged between the two frame units; the frame unit comprises a base, a seat cushion side plate and a front connecting plate; one end of the front connecting plate is hingedly connected to the base, and the other end of the front connecting plate is rotatably sleeved on the front cross tube; the rear end of the seat cushion side plate is rotatably sleeved on the rear cross tube; the seat cushion frame assembly further comprises a height adjustment mechanism; the height adjustment mechanism comprises a height adjustment toothed fan fixed on the rear cross tube, a gear matched with the height adjustment toothed fan, and a driving mechanism fixed on the seat cushion side plate, and the output end of the driving mechanism is provided with the gear; the height adjustment toothed fan is also hingedly connected to the base; a rear connecting plate is also rotatably sleeved on the rear cross tube, and the bottom end of the rear connecting plate is hingedly connected to the base; the compensation support assembly comprises a compensation support cross tube; the two sides of the compensation support cross tube are rotatably sleeved with connecting side plates, and one end of the connecting side plate away from the compensation support cross tube is rotatably sleeved on the front cross tube; the compensation support cross tube is further provided with a first connecting piece at one end close to the height adjustment toothed fan; the first connecting piece comprises a first connecting plate and a second connecting plate; one end of the first connecting plate is rotatably sleeved on the compensation support cross tube, and the other end is hingedly connected to one end of the second connecting plate; the other end of the second connecting plate is sleeved on the rear cross tube and fixed on the rear cross tube.

[0009] The compensation support cross tube is further provided with a second connecting piece at one end away from the height adjustment toothed fan; the second connecting piece comprises a third connecting plate and a support block; the support block is generally C-shaped and buckled on the upper and lower sides of the rear connecting plate through the C-shaped structure; one end of the third connecting plate is rotatably sleeved on the compensation support cross tube, and the other side is hingedly connected to the support block.

[0010] The base is an electric sliding rail, and the front connecting plate, the height adjustment toothed fan and the rear connecting plate are hingedly connected to the support fixed on the moving end of the electric sliding rail.

[0011] The height adjustment toothed fan comprises a fan-shaped body fixed on the rear cross tube; a tooth portion engaged with the gear is arranged on the arc surface of the front end of the fan-shaped body; a connecting portion extends from the bottom side of the front end of the fan-shaped body; and the connecting portion is hingedly connected to the base.

[0012] The seat cushion rear end comfort compensation mechanism of the present application can synchronously adjust the support structure and angle of the seat cushion rear end when the seat height is lowered, effectively solves the problems of insufficient support of the seat cushion rear end, ergonomic design defects and structural stability of existing seats, improves the fit of the seat cushion rear end and the human body, optimizes the pressure distribution, enhances the structural stability, and significantly improves the riding comfort and safety of users. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A perspective view of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0014] Figure 2 A three-dimensional schematic diagram of the raised state of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0015] Figure 3 A perspective view of a seat frame assembly of a seat rear comfort compensation mechanism according to an embodiment;

[0016] Figure 4 This is a three-dimensional schematic diagram of the seat frame assembly of a seat rear comfort compensation mechanism according to an embodiment;

[0017] Figure 5 A perspective view of a compensation support component of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0018] Figure 6 A perspective view of the second connector of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0019] Figure 7 A three-dimensional schematic diagram of the height adjustment gear of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0020] Figure 8 A front view schematic diagram of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0021] Figure 9 This is a front view schematic diagram of the raised state of a seat cushion rear comfort compensation mechanism according to an embodiment;

[0022] Figure 10 for Figure 8 A cross-sectional view of AA;

[0023] Figure 11 for Figure 9 A cross-sectional view of BB;

[0024] Figure 12 for Figure 8 A cross-sectional view of CC;

[0025] Figure 13 for Figure 9 A cross-sectional view of DD;

[0026] Figure 14 for Figure 8 A cross-sectional view of the EE;

[0027] Figure 15 for Figure 9 A cross-sectional view of FF;

[0028] Wherein, 1-seat cushion frame assembly, 2-compensation support assembly, 11-base, 12-seat cushion side plate, 13-front connecting plate, 14-front cross tube, 15-rear cross tube, 16-height adjustment mechanism, 17-rear connecting plate, 111-support, 161-height adjustment tooth fan, 162-gear, 163-driving mechanism, 1611-fan body, 1612-tooth part, 1613-connection part, 21-compensation support cross tube, 22-connection side plate, 23-first connecting piece, 24-second connecting piece, 231-first connecting plate, 232-second connecting plate, 241-third connecting plate, 242-support block. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present application, the present application will be further described in detail below in conjunction with the drawings and examples, which are only used to explain the present application and do not constitute a limitation on the protection scope of the present application.

[0030] Embodiment

[0031] Please refer to Figures 1 to 15 The embodiment provides a seat cushion rear end comfort compensation mechanism, which comprises a seat cushion frame assembly 1 and a compensation support assembly 2 installed on the seat cushion frame assembly 1. The seat cushion frame assembly 1 comprises left and right frame units, a front cross tube 14 and a rear cross tube 15 arranged between the two frame units. The frame unit comprises a base 11, a seat cushion side plate 12 and a front connecting plate 13. One end of the front connecting plate 13 is hingedly connected to the base 11, and the other end of the front connecting plate 13 is rotatably sleeved on the front cross tube 14. The rear end of the seat cushion side plate 12 is rotatably sleeved on the rear cross tube 15. The seat cushion frame assembly 1 further comprises a height adjustment mechanism 16. The height adjustment mechanism 16 comprises a height adjustment tooth fan 161 fixed on the rear cross tube 15, a gear 162 matched with the height adjustment tooth fan, and a driving mechanism 163 fixed on the seat cushion side plate 12. The output end of the driving mechanism 163 is installed with the gear 162. The height adjustment tooth fan 161 is also hingedly connected to the base 11. The rear connecting plate 17 is also rotatably sleeved on the rear cross tube 15, and the bottom end of the rear connecting plate 17 is hingedly connected to the base 11. The compensation support assembly 2 comprises a compensation support cross tube 21. The two sides of the compensation support cross tube 21 are rotatably sleeved with connection side plates 22, and the ends of the connection side plates 22 away from the compensation support cross tube 21 are rotatably sleeved on the front cross tube 14. The compensation support cross tube 21 is also provided with a first connecting piece 23 at one end close to the height adjustment tooth fan 161. The first connecting piece 23 comprises a first connecting plate 231 and a second connecting plate 232. One end of the first connecting plate 231 is rotatably sleeved on the compensation support cross tube 21, and the other end is hingedly connected to one end of the second connecting plate 232. The other end of the second connecting plate 232 is sleeved on the rear cross tube 15 and fixed with the rear cross tube 15.

[0032] Referring to Figs. 1 and 2 again, Figure 5 and Figure 6 As shown, the compensation support cross pipe 21 is further provided with a second connecting piece 24 at the end away from the height adjustment tooth fan 161; the second connecting piece 24 comprises a third connecting plate 241 and a support block 242; the support block 242 is generally C-shaped and buckled on the upper and lower sides of the rear connecting plate 17 through the C-shaped structure; one end of the third connecting plate 241 is rotatably sleeved on the compensation support cross pipe 21, and the other side is hinged with the support block 242.

[0033] Referring to Figs. 1 and 2 again, Figure 10 and Figure 12 As shown, the base 11 is an electric slide rail, and the front connecting plate 13, the height adjustment tooth fan 161 and the rear connecting plate 17 are respectively hinged with the support 111 fixed on the moving end of the electric slide rail.

[0034] Referring to Figs. 1 and 2 again, Figure 7 and Figure 14 As shown, the height adjustment tooth fan 161 comprises a fan-shaped body 1611, and the fan-shaped body 1611 is fixed on the rear cross pipe 15; the arc surface of the front end of the fan-shaped body 1611 is provided with a tooth portion 1612 engaged with the gear 162; the bottom side of the front end of the fan-shaped body extends a connecting portion 1613; and the connecting portion 1613 is hinged with the base 11.

[0035] Referring to Figs. 1 and 2 again, Figures 10 to 15 As shown, the working principle of the seat cushion rear end comfort compensation mechanism of the embodiment is as follows:

[0036] Seat height adjustment process: the gear is driven to rotate by the driving mechanism, the height adjustment tooth fan is actuated by the gear, the front side of the height adjustment tooth fan is flipped downward, the right side of the seat cushion side plate is raised under the linkage cooperation of the right side of the front connecting plate and the height adjustment tooth fan, and the left side of the seat cushion side plate is raised under the linkage cooperation of the front cross pipe, the rear cross pipe, the left side of the front connecting plate and the rear connecting plate; simultaneously, since the height adjustment tooth fan is fixedly connected with the rear cross pipe, the rear cross pipe rotates synchronously with the rotation of the height adjustment tooth fan, the rear cross pipe also drives the second connecting plate fixed thereto to rotate, the right side of the compensation support cross pipe rotates through the second connecting plate and is raised under the linkage cooperation of the first connecting plate and the right side of the connecting side plate, simultaneously, the rear connecting plate changes the angle with the base with the left side of the seat cushion side plate raised, thereby driving the support block to be raised, under the linkage cooperation of the left side of the connecting side plate and the third connecting plate, the compensation support cross pipe as a whole is raised, the compensation support cross pipe is stably supported through the cooperation of the first connecting plate, the second connecting plate and the rear cross pipe and through the cooperation of the third connecting plate, the support block and the rear connecting plate; in the process of the seat cushion frame assembly being raised, the raising amplitude of the compensation support cross pipe is smaller than that of the rear cross pipe;

[0037] The seat lowering process: the driving gear is driven to rotate by the driving mechanism, the gear drives the height adjustment tooth fan to turn, the front side of the height adjustment tooth fan is turned up, the right side of the seat cushion side plate is lowered under the linkage cooperation of the right side of the front connecting plate and the height adjustment tooth fan, and the left side of the seat cushion side plate is lowered under the linkage cooperation of the front cross pipe, the rear cross pipe, the left side of the front connecting plate and the rear connecting plate; simultaneously, since the height adjustment tooth fan is fixedly connected with the rear cross pipe, the rear cross pipe rotates synchronously with the rotation of the height adjustment tooth fan, the rear cross pipe also drives the second connecting plate fixedly connected therewith to rotate, the right side of the compensation support cross pipe is lowered through the rotation of the second connecting plate and under the linkage cooperation of the first connecting plate and the right side of the connecting side plate, simultaneously, the rear connecting plate changes the angle with the base with the lowering of the left side of the seat cushion side plate, thereby driving the support block to lower, under the linkage cooperation of the left side of the connecting side plate and the third connecting plate, the compensation support cross pipe as a whole is lowered, the compensation support cross pipe is stably supported through the cooperation of the first connecting plate, the second connecting plate and the rear cross pipe and through the cooperation of the third connecting plate, the support block and the rear connecting plate; during the lowering of the seat cushion frame assembly, the lowering amplitude of the compensation support cross pipe of the compensation support assembly is smaller than the lowering amplitude of the rear cross pipe.

[0038] The seat cushion rear end comfort compensation mechanism of the embodiment automatically lowers the compensation support cross pipe of the compensation support assembly relative to the rear cross pipe in a small amplitude when the seat cushion frame assembly is lowered in a high amplitude, thereby being more in line with the change of the human body posture when the seat is lowered in a high amplitude, improving the fitting degree of the seat cushion rear end and the human body, making the pressure distribution of the human body on the seat more uniform, and simultaneously, enhancing the structural stability; significantly improving the riding comfort and safety of the user; simultaneously, the seat cushion rear end comfort compensation mechanism of the embodiment is simple in structure and easy to integrate into the design of the existing automobile seat.

[0039] The above embodiments should not limit the present application in any way, and any technical solution obtained by equivalent replacement or equivalent conversion falls within the protection scope of the present application.

Claims

1. A seat cushion rear end comfort compensation mechanism characterized by: The seat cushion frame assembly comprises two frame units on the left and right sides, a front cross tube and a rear cross tube arranged between the two frame units; the frame unit comprises a base, a seat cushion side plate and a front connecting plate; one end of the front connecting plate is hingedly connected to the base, and the other end of the front connecting plate is rotatably sleeved with the front end of the seat cushion side plate on the front cross tube; the rear end of the seat cushion side plate is rotatably sleeved on the rear cross tube; the seat cushion frame assembly further comprises a height adjusting mechanism; the height adjusting mechanism comprises a height adjusting tooth fan fixed on the rear cross tube, a gear matched with the height adjusting tooth fan, and a driving mechanism fixed on the seat cushion side plate, and the output end of the driving mechanism is provided with the gear; the height adjusting tooth fan is further hingedly connected to the base; a rear connecting plate is further rotatably sleeved on the rear cross tube, and the bottom end of the rear connecting plate is hingedly connected to the base; the compensation support assembly comprises a compensation support cross tube; the two sides of the compensation support cross tube are rotatably sleeved with connecting side plates, and the ends of the connecting side plates away from the compensation support cross tube are rotatably sleeved on the front cross tube; the compensation support cross tube is further provided with a first connecting piece at one end close to the height adjusting tooth fan; the first connecting piece comprises a first connecting plate and a second connecting plate; one end of the first connecting plate is rotatably sleeved on the compensation support cross tube, and the other end is hingedly connected to one end of the second connecting plate; the other end of the second connecting plate is sleeved on the rear cross tube and fixed on the rear cross tube; The compensation support cross tube is further provided with a second connecting piece at one end away from the height adjusting tooth fan; the second connecting piece comprises a third connecting plate and a support block; the support block is generally C-shaped and buckled on the upper and lower sides of the rear connecting plate through the C-shaped structure; one end of the third connecting plate is rotatably sleeved on the compensation support cross tube, and the other side is hingedly connected to the support block.

2. A seat cushion rear end comfort compensation mechanism according to claim 1, characterized by: The base is an electric sliding rail, and the front connecting plate, the height adjusting tooth fan and the rear connecting plate are respectively hingedly connected to the support fixed on the moving end of the electric sliding rail.

3. A seat cushion rear end comfort compensation mechanism according to claim 1 or 2, characterized in that: The height adjusting tooth fan comprises a fan-shaped body, and the fan-shaped body is fixed on the rear cross tube; a tooth portion engaged with the gear is arranged on the arc surface of the front end of the fan-shaped body; a connecting portion extends from the bottom side of the front end of the fan-shaped body; and the connecting portion is hingedly connected to the base.

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