Zero-gravity cushion device of vehicle seat
By using a five-link structure and a motor drive mechanism, the zero-gravity function of the driver and passenger seat cushions is realized, solving the problems of the lack of a zero-gravity device and complex structure in the driver's seat in the existing technology, and realizing low-cost flexible adjustment and modification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-04-10
AI Technical Summary
Existing vehicle seats lack a zero-gravity seat cushion for the driver, and existing zero-gravity seats have complex structures, high production costs, and cannot be flexibly adjusted between the driver and passenger seats.
It adopts a five-link structure and is driven by front and rear drive mechanisms and motors to realize arbitrary height adjustment of the seat cushion. It is suitable for driver and passenger seats, has a simple structure and low production cost.
It achieves zero-gravity functionality for the driver and passenger seat cushions, has a simple structure, low production cost, is easy to modify, and has significant expansion potential and block value advantages.
Smart Images
Figure CN224103922U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to vehicle seat technical field, especially involve a kind of zero gravity cushion device of vehicle seat. BACKGROUND
[0002] At present, the seat on general vehicle is mostly set with zero gravity seat on vice driver, but the seat is not provided with height adjustment function, the structure of zero gravity seat is complex, and the production cost is high, and the zero gravity cushion device of main driver is lacked. SUMMARY
[0003] The utility model aims at providing a kind of zero gravity cushion device for main vice driver, which can be arbitrarily adjusted by using existing seat structure.
[0004] The utility model is solved as follows:
[0005] A kind of zero gravity cushion device of vehicle seat, including seat base and seat basin framework, the rear part of seat base two side plates is respectively hinged in the one end of first connecting rod, the other end of two first connecting rods is hinged in the two ends of rear synchronous pipe, the two ends of rear synchronous pipe are hinged with the rear part of left and right side plates of seat basin framework, the front part of seat base two side plates is respectively hinged with front synchronous pipe, the two ends of front synchronous pipe are respectively fixed in the one end of second connecting rod, the other end of second connecting rod is hinged with the one end of third connecting rod, the other end of third connecting rod is hinged with the front part of left and right side plates of seat basin framework, the front part of seat base is provided with front drive mechanism for driving the rotation of front synchronous pipe, the rear part of seat base is provided with rear drive mechanism for driving the rotation of rear synchronous pipe.
[0006] As further optimization of the above technical solution, the specific structure of the front drive mechanism is: first screw rod motor is hinged on the connecting pipe of seat base left and right side plates, the screw sleeve screwed on the screw rod of first screw rod motor is hinged on the front synchronous pipe, the rotation of first screw rod motor drives the movement of screw sleeve, in turn drives the rotation of front synchronous pipe, and drives the lifting of seat basin framework front part through second connecting rod and third connecting rod.
[0007] As further optimization of the above technical solution, the specific structure of the rear drive mechanism is: driving motor is fixed on the left side plate or right side plate of seat base, the pinion fixed on the motor shaft of driving motor is engaged with the sector gear fixed on the first connecting rod, driving motor drives the rotation of first connecting rod, which drives the lifting of seat basin framework rear part through rear synchronous pipe.
[0008] As further optimization of the above technical solution, the two sides of seat base are slidably arranged on seat slide on both sides through slide rail.
[0009] As further optimization of the above technical solutions, the upper and lower sides of the two side plates of the seat base are provided with outward turning edges or / and first outward turning edges and then downward turning edges or upward turning edges to form a reinforcing structure.
[0010] As further optimization of the above technical solutions, the length of the second connecting rod is less than the length of the third connecting rod.
[0011] As further optimization of the above technical solutions, the length of the third connecting rod is less than the length of the first connecting rod.
[0012] As further optimization of the above technical solutions, the front part of the seat base is provided with a rotatable and liftable leg support, and rotation and extension of a second screw rod motor driven connecting rod assembly hinged at the front part of the seat base drives the leg support to be folded or unfolded.
[0013] The positive effect of the present application compared with the prior art is:
[0014] 1. The present application adopts a five-connecting-rod form, and realizes arbitrary height adjustment and lowering of the front and rear parts of the seat cushion through two motors, and realizes zero gravity function.
[0015] 2. The same set of framework of the present application is applicable to main driver zero gravity and vice driver zero gravity, and only needs to be slightly adjusted in connection details without structural change, and the Block value is lower than other zero gravity frameworks and has more expansion space, and the Block value has great advantage compared with similar six-direction frameworks.
[0016] 3. The present application has simple structure, is convenient for reforming the cushion framework of the existing main driver or vice driver seat, has low production cost, fast production speed, and is convenient for popularization and application. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is one of the three-dimensional schematic views of the present application.
[0018] Figure 2 is the second three-dimensional schematic view of the present application.
[0019] Figure 3 is the exploded view of the present application.
[0020] Figure 4 is the working principle schematic view of the present application. DETAILED DESCRIPTION
[0021] The present application will be further described in combination with the embodiments and the drawings, and the drawings are referred to as follows: Figures 1-4 :
[0022] The zero-gravity cushion device of a vehicle seat comprises a seat base and a seat pan frame, the rear part of the two side plates 35 of the seat base is hinged to one end of the first connecting rod 38 through the pin shaft 37, the other end of the two first connecting rods 38 is hinged to the two ends of the rear synchronous pipe 39, the two ends of the rear synchronous pipe 39 is hinged to the hinge hole 40 at the rear part of the left and right side plates 36 of the seat pan frame, the front part of the two side plates 35 of the seat base is hinged to the front synchronous pipe 34 through the hinge hole 41, the two ends of the front synchronous pipe 34 is fixed to one end of the second connecting rod 31, the other end of the second connecting rod 31 is hinged to one end of the third connecting rod 32 through the pin shaft 30, the other end of the third connecting rod 32 is hinged to the front part of the left and right side plates 36 of the seat pan frame through the hinge shaft 33, the front part of the seat base is provided with a front driving mechanism for driving the rotation of the front synchronous pipe 34, and the rear part of the seat base is provided with a rear driving mechanism for driving the rotation of the rear synchronous pipe 39.
[0023] As a further optimization of the above technical solution, the specific structure of the front driving mechanism is that the first screw rod motor 45 is hinged to the connecting pipe 43 of the left and right side plates 35 of the seat base, the screw sleeve screwed on the screw rod of the first screw rod motor 45 is hinged to the front synchronous pipe 34, the rotation of the first screw rod motor 45 drives the movement of the screw sleeve, and in turn drives the rotation of the front synchronous pipe 34, and drives the lifting of the front part of the seat pan frame through the second connecting rod 31 and the third connecting rod 32.
[0024] As a further optimization of the above technical solution, the specific structure of the rear driving mechanism is that the left side plate 35 or the right side plate 35 of the seat base is fixed with a driving motor 46, the pinion 42 fixed on the motor shaft of the driving motor 46 is engaged with the sector gear 44 fixed on the first connecting rod 38 for transmission, the driving motor 46 drives the rotation of the first connecting rod 38, which drives the lifting of the rear part of the seat pan frame through the rear synchronous pipe 39.
[0025] As a further optimization of the above technical solution, the two sides of the seat base are slidably arranged on the seat slide 20 on the two sides through the slide rail 21.
[0026] As a further optimization of the above technical solution, the upper and lower sides of the two side plates 35 of the seat base are provided with an everted edge or / and a first everted edge, a second downward everted edge or an upward everted edge to form a reinforcing structure.
[0027] As a further optimization of the above technical solution, the length of the second connecting rod 31 is less than the length of the third connecting rod 32.
[0028] As a further optimization of the above technical solution, the length of the third connecting rod 32 is less than the length of the first connecting rod 38.
[0029] As further optimization of the above technical solutions, the front part of the seat base is provided with a rotatable and liftable leg rest 10, and the rotation and extension of a second screw rod motor driven linkage assembly 11 hinged to the front part of the seat base drives the folding and unfolding of the leg rest 10.
[0030] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make simple replacements or modifications to the technical solutions or technical features recorded in the foregoing embodiments by using similar technologies, and these simple replacements or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and substance of the technical solutions of the embodiments of the present application, and still fall within the protection scope of the present application.
Claims
1. A zero-gravity cushion device for a vehicle seat, comprising a seat base and a seat pan frame, characterized by: The rear parts of the two side plates of the seat base are hingedly connected to one end of the first connecting rod, the other end of the two first connecting rods is hingedly connected to the two ends of the rear synchronous pipe, the two ends of the rear synchronous pipe are hingedly connected to the rear parts of the left and right side plates of the seat basin framework, the front parts of the two side plates of the seat base are respectively hingedly connected to the front synchronous pipe, the two ends of the front synchronous pipe are respectively fixed to one end of the second connecting rod, the other end of the second connecting rod is hingedly connected to one end of the third connecting rod, the other end of the third connecting rod is hingedly connected to the front parts of the left and right side plates of the seat basin framework, the front part of the seat base is provided with a front driving mechanism for driving the rotation of the front synchronous pipe, and the rear part of the seat base is provided with a rear driving mechanism for driving the rotation of the rear synchronous pipe.
2. A zero-gravity cushion device for a vehicle seat according to claim 1, wherein: The specific structure of the front driving mechanism is that the first lead screw motor is hingedly connected to the connecting pipe of the left and right side plates of the seat base, the screw sleeve screwed on the lead screw of the first lead screw motor is hingedly connected to the front synchronous pipe, the rotation of the first lead screw motor drives the movement of the screw sleeve, and in turn drives the rotation of the front synchronous pipe, and the front synchronous pipe drives the lifting of the front part of the seat basin framework through the second connecting rod and the third connecting rod.
3. A zero-gravity cushion device for a vehicle seat as defined in claim 1, wherein: The specific structure of the rear driving mechanism is that the driving motor is fixed on the left side plate or the right side plate of the seat base, the pinion fixed on the motor shaft of the driving motor is in meshing transmission with the sector gear fixed on the first connecting rod, the driving motor drives the rotation of the first connecting rod, and in turn drives the lifting of the rear part of the seat basin framework through the rear synchronous pipe.
4. A zero-gravity cushion device for a vehicle seat as defined in claim 1, wherein: The two side plates of the seat base are slidably arranged on the seat slide rails on the two sides through the slide rails.
5. A zero-gravity cushion device for a vehicle seat as defined in claim 1, wherein: The upper and lower sides of the two side plates of the seat base are respectively provided with the turned-up edges or / and the first turned-up edges, the second turned-down edges or the turned-up edges to form the reinforcing structure.
6. A zero-gravity cushion device for a vehicle seat as defined in claim 1, wherein: The length of the second connecting rod is less than the length of the third connecting rod.
7. A zero-gravity cushion assembly for a vehicle seat as defined in claim 1, wherein: The length of the third connecting rod is less than the length of the first connecting rod.
8. A zero-gravity cushion device for a vehicle seat as defined in claim 1, wherein: The front part of the seat base is provided with a rotatable leg support which is raised, and the second lead screw motor hingedly connected to the front part of the seat base drives the rotation and extension of the connecting rod assembly, and in turn drives the folding and unfolding of the leg support.