Zero-gravity seat with single driving mechanism and vehicle with zero-gravity seat

Abstract

A zero-gravity seat with a single driving mechanism comprises a backrest assembly, a seat frame assembly, a sliding rail assembly and a synchronous driving mechanism. Left / right connecting rod connecting plates are arranged at the lower ends of the backrest assembly left / right angle adjuster upper connecting plates respectively. The seat frame assembly is hinged to a sliding rail upper connecting plate of the sliding rail assembly; the synchronous driving mechanism comprises a left / right connecting rod mechanism; the left connecting rod mechanism comprises a first left connecting rod, a second left connecting rod and a third left connecting rod; the rear end of the first left connecting rod is hinged to the left connecting rod connecting plate, the front end of the first left connecting rod is hinged to the rear end of the second left connecting rod and the rear end of the third left connecting rod, the front end of the second left connecting rod is hinged to a sliding rail upper connecting plate of the sliding rail assembly, and the front end of the third left connecting rod is hinged to the front end of a left side plate of the seat frame assembly. According to the seat, on the basis that an existing five-connecting-rod mechanism is reserved, synchronous driving adjustment of the seat and the backrest is achieved by improving the connecting rod structure and simplifying the driving mechanism, the structure is simple, the occupied space is small, the unfolding time is short, and meanwhile the requirements for comfort of different passengers can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, and in particular relates to a zero-gravity seat with a single driving mechanism and a vehicle thereof. Background Art

[0002] As people explore and practice future driving scenarios, seats, as important components in the cockpit, are also constantly innovating and upgrading. Zero-gravity seats, as a new type of seat, have gradually entered people's lives. They are designed to provide a sense of weightlessness and comfort, which can reduce physical fatigue and discomfort during long-term riding. However, in the prior art, the zero-gravity posture of car seats is achieved mainly by adjusting the backrest and seat basin separately. The seat cushion adjustment and seat basin adjustment are controlled by separate motors. The adjustment requires dual motors to cooperate with multiple connecting rods and a rotating drive mechanism to form an adjustment structure to achieve seat basin height adjustment and backrest inclination adjustment. It has the disadvantages and shortcomings of complex drive mechanism, high cost, and long adjustment and deployment time. Summary of the invention

[0003] In view of the above-mentioned technical problems and shortcomings, the purpose of the utility model is to provide a zero-gravity seat with a single drive mechanism. The seat is based on the existing 5-link mechanism, and by improving the link structure and simplifying the drive mechanism, the seat back is synchronously driven and adjusted. It has a simple structure, occupies a small space, and takes a short deployment time. At the same time, it can meet the comfort needs of different passengers.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A zero-gravity chair with a single drive mechanism, comprising a backrest assembly, a seat frame assembly, a slide rail assembly, and a synchronous drive mechanism; wherein the backrest assembly is provided with a left angle adjuster upper connecting plate, a right angle adjuster upper connecting plate, an adjuster, and a backrest motor; the backrest assembly is hinged with the upper ends of the slide rail upper connecting plates on the left and right sides of the slide rail assembly to form a rotation point A; after the angle adjuster is unlocked, the backrest assembly flips backward around the rotation point A under the action of the backrest motor; the lower ends of the left angle adjuster upper connecting plate and the right angle adjuster upper connecting plate are provided with a left connecting rod connecting plate and a right connecting rod connecting plate respectively;

[0006] The rear end of the seat frame assembly is hinged to the connecting plates on the slide rails on the left and right sides of the slide rail assembly to form a rotation point F;

[0007] The synchronous drive mechanism includes a left connecting rod mechanism and a right connecting rod mechanism; wherein the left connecting rod mechanism includes a first left connecting rod, a second left connecting rod and a third left connecting rod; the rear end of the first left connecting rod is hinged to the left connecting rod connecting plate to form a rotation point B, and the front end of the first left connecting rod is hinged to the rear ends of the second left connecting rod and the rear ends of the third left connecting rod at the same time to form a rotation point C; the front end of the second left connecting rod is hinged to the connecting plate on the slide rail on the left side of the slide rail assembly to form a rotation point D; the front end of the third left connecting rod is hinged to the front end of the left side plate of the seat frame assembly to form a rotation point E;

[0008] The right connecting rod mechanism is the same as the left connecting rod mechanism, including a first right connecting rod, a second right connecting rod, and a third right connecting rod. The rear end of the first right connecting rod is hinged to the right connecting rod connecting plate, the front end of the second right connecting rod is hinged to the connecting plate on the right side of the sliding rail assembly, and the front end of the third right connecting rod is hinged to the front end of the right side plate of the seat frame assembly.

[0009] As a preferred embodiment of the present invention, the seat further comprises a leg rest mechanism, wherein the leg rest mechanism is mounted at the front end of the seat frame assembly, and the leg rest mechanism is an independently driven mechanism.

[0010] As a preferred embodiment of the present invention, the rotation point F is closer to the front end of the seat relative to the rotation point A, and its height is lower than the rotation point A; the rotation point B is located below the rotation point A; the height of the rotation point C is located between the rotation point D and the rotation point E, and is closer to the rear end of the seat relative to the rotation point D and the rotation point E; the rotation point D is closer to the rotation point C relative to the rotation point E.

[0011] As a preferred embodiment of the present invention, the left connecting rod connecting plate and the left angle adjuster upper connecting plate are an integrated structure, and the left connecting rod connecting plate and the right angle adjuster upper connecting plate are an integrated structure.

[0012] As a preferred embodiment of the present invention, the upper connecting plate of the slide rail of the slide rail assembly is fixed on the upper slide rail of the slide rail assembly, and the upper slide rail slides forward and backward relative to the lower slide rail of the slide rail assembly.

[0013] As a preferred embodiment of the utility model, the rear end of the seat frame assembly is connected to the connecting plates on the slide rails on the left and right sides of the slide rail assembly through step bolts to form a rotation point F; the rear end of the first left connecting rod is connected to the left connecting rod connecting plate through step bolts to form a rotation point B, and the front end of the first left connecting rod is connected to the rear ends of the second left connecting rod and the third left connecting rod at the same time through step bolts to form a rotation point C; the front end of the second left connecting rod is connected to the connecting plate on the slide rail on the left side of the slide rail assembly through step bolts to form a rotation point D; the front end of the third left connecting rod is connected to the left side plate of the seat frame assembly through step bolts to form a rotation point E.

[0014] As a preferred embodiment of the present invention, the left connecting rod mechanism and the right connecting rod mechanism are both arranged on the inner side of the seat frame assembly, the left connecting rod mechanism is close to the left side of the seat frame assembly, and the right connecting rod mechanism is close to the right side of the seat frame assembly.

[0015] As a preferred embodiment of the present invention, the synchronous drive mechanism also includes a connecting rod synchronization rod arranged between the left connecting rod mechanism and the right connecting rod mechanism, and the connecting rod synchronization rod is fixed between the first left connecting rod and the first right connecting rod and is arranged close to the front end of the seat.

[0016] The utility model also provides a vehicle, on which the zero-gravity seat with the single drive mechanism is installed.

[0017] Advantages and beneficial effects of the utility model:

[0018] (1) The utility model retains the existing 5-link mechanism and improves the link structure to simplify the drive mechanism. It has a simple structure, small space occupation, high transmission efficiency, and short deployment time. A single motor can achieve synchronous adjustment of the backrest and the seat frame to meet the comfort needs of different passengers.

[0019] (2) The present invention also adopts a 5-bar linkage, but the linkage connecting plate and the upper connecting plate of the recliner are an integrated structure and are arranged at the lower end of the upper connecting plate of the recliner. Compared with the existing 5-bar linkage, this linkage has fewer parts and is easier to assemble, which can reduce material costs and production time.

[0020] (3) The five-link mechanism of the utility model requires little space for arrangement, and the arrangement on both sides of the left / right link mechanism can provide high stability and synchronization; in addition, the link mechanism has a large adjustment stroke, which can meet the comfort requirements of different passengers and different sitting postures.

[0021] (4) The five-link mechanism of the present invention has high compatibility with existing seat interfaces and can be adapted to front and rear row seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The overall structure of the zero-gravity chair with a single drive mechanism of the utility model is shown in FIG. Figure 1 (Design status);

[0024] Figure 2 The overall structure of the zero-gravity chair with a single drive mechanism of the utility model is shown in FIG. Figure 2(Design status);

[0025] Figure 3 The overall structural diagram of the zero-gravity chair with a single drive mechanism of the utility model (zero-gravity state);

[0026] Figure 4 It is a side view (zero gravity state) of the zero gravity chair with a single drive mechanism of the utility model;

[0027] Figure 5 The working principle of the synchronous drive mechanism of the zero-gravity chair with a single drive mechanism of the utility model is shown in FIG. Figure 1 ;

[0028] Figure 6 The working principle of the synchronous drive mechanism of the zero-gravity chair with a single drive mechanism of the utility model is shown in FIG. Figure 2 ;

[0029] Figure 7 It is an exploded schematic diagram of a zero-gravity chair with a single drive mechanism of the utility model;

[0030] Figure 8 This is a top view of the zero-gravity chair with a single drive mechanism of the utility model.

[0031] Figure numerals: backrest assembly 1, seat frame assembly 2, slide rail assembly 3, synchronous drive mechanism 4, leg support mechanism 5, left angle adjuster upper connecting plate 11, right angle adjuster upper connecting plate 12, angle adjuster 13, backrest motor 14, left side plate 21, right side plate 22, slide rail upper connecting plate 31, upper slide rail 32, lower slide rail 33, left connecting rod mechanism 41, right connecting rod mechanism 42, connecting rod synchronization rod 43, left connecting rod connecting plate 111, right connecting rod connecting plate 121, first left connecting rod 411, second left connecting rod 412, third left connecting rod 413, first right connecting rod 421, second right connecting rod 422, third right connecting rod 423. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present application, it should be noted that the terms "front", "rear", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the present application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0034] 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.

[0035] like Figures 1 to 8 As shown, this embodiment provides a zero-gravity chair with a single drive mechanism, including a backrest assembly 1, a seat frame assembly 2, a slide rail assembly 3, a synchronous drive mechanism 4, and a leg support mechanism 5; wherein, the backrest assembly 1 is provided with a left angle adjuster upper connecting plate 11, a right angle adjuster upper connecting plate 12, an adjuster 13, and a backrest motor 14, and the backrest assembly 1 is hinged at the upper ends of the slide rail upper connecting plates 31 on the left and right sides of the slide rail assembly 3 to form a rotation point A, and after the adjuster 13 is unlocked, the backrest assembly 1 flips backward around the rotation point A under the action of the backrest motor 14; the lower ends of the left angle adjuster upper connecting plate 11 and the right angle adjuster upper connecting plate 12 are respectively provided with a left connecting rod connecting plate 111 and a right connecting rod connecting plate 121;

[0036] The rear end of the seat frame assembly 2 is hinged to the connecting plates 31 on the left and right sides of the slide rail assembly 3 to form a rotation point F;

[0037] The synchronous drive mechanism 4 includes a left connecting rod mechanism 41 and a right connecting rod mechanism 42; wherein the left connecting rod mechanism 41 includes a first left connecting rod 411, a second left connecting rod 412, and a third left connecting rod 413; the rear end of the first left connecting rod 411 is hinged to the left connecting rod connecting plate 111 to form a rotation point B, and the front end of the first left connecting rod 411 is hinged to the rear ends of the second left connecting rod 412 and the rear ends of the third left connecting rod 413 to form a rotation point C; the front end of the second left connecting rod 412 is hinged to the upper connecting plate 31 of the slide rail on the left side of the slide rail assembly 3 to form a rotation point D; the front end of the third left connecting rod 413 is hinged to the front end of the left side plate 21 of the seat frame assembly 2 to form a rotation point E;

[0038] The right connecting rod mechanism 42 is the same as the left connecting rod mechanism 41, and includes a first right connecting rod 421, a second right connecting rod 422, and a third right connecting rod 423. The rear end of the first right connecting rod 421 is hinged to the right connecting rod connecting plate 121, the front end of the second right connecting rod 422 is hinged to the upper connecting plate 31 of the slide rail on the right side of the slide rail assembly 3, and the front end of the third right connecting rod 423 is hinged to the front end of the right side plate 22 of the seat frame assembly 2.

[0039] The leg support mechanism 5 is installed at the front end of the seat frame assembly 2, and the leg support mechanism 5 is an independently driven mechanism.

[0040] In this embodiment, the rotation point F is closer to the front end of the seat relative to the rotation point A, and its height is lower than the rotation point A; the rotation point B is located below the rotation point A; the height of the rotation point C is located between the rotation point D and the rotation point E, and is closer to the rear end of the seat relative to the rotation point D and the rotation point E; the rotation point D is closer to the rotation point C relative to the rotation point E.

[0041] Further, in this embodiment, the left connecting rod connecting plate 111 and the left angle adjuster upper connecting plate 11 are an integrated structure, the right connecting rod connecting plate 121 and the right angle adjuster upper connecting plate 12 are an integrated structure, the left connecting rod connecting plate 111, the first left connecting rod 411, the second left connecting rod 412, the third left connecting rod 413, and the seat frame assembly 2 form a 5-link mechanism; the backrest motor 14 provides a single drive unit, first drives the backrest assembly 1 to rotate backward around the rotation point A (the rotation center of the backrest), at this time the left connecting rod connecting plate 111, the right The connecting rod connecting plate 121 rotates around the rotation point B and drives the first left connecting rod 411 and the first right connecting rod 421 to move forward, thereby driving the rotation point C to move forward. When the rotation point C moves forward, the second left connecting rod 412 and the second right connecting rod 422 rotate upward around the rotation point D, and the third left connecting rod 413 and the third right connecting rod 423 drive the rotation point E to move upward, thereby pushing the seat frame assembly 2 and the leg support mechanism 5 to rotate and lift around the rotation point F, and the rear leg support motor 5 drives the leg support mechanism to extend to achieve a zero gravity posture.

[0042] Further, if Figure 1 As shown, in this embodiment, the upper connecting plate 31 of the slide rail assembly 3 is fixed on the upper slide rail 32 of the slide rail assembly 3, and the upper slide rail 32 slides forward and backward relative to the lower slide rail 33 of the slide rail assembly 3.

[0043] Further, in the present embodiment, the rear end of the seat frame assembly 2 is connected to the connecting plates 31 on the left and right sides of the slide rail assembly 3 by step bolts to form a rotation point F; the rear end of the first left connecting rod 411 is connected to the left connecting rod connecting plate 111 by step bolts to form a rotation point B, and the front end of the first left connecting rod 411 is connected to the rear end of the second left connecting rod 412 and the rear end of the third left connecting rod 413 by step bolts to form a rotation point C; the front end of the second left connecting rod 412 is connected to the connecting plate 31 on the left side of the slide rail assembly 3 by step bolts to form a rotation point D; the front end of the third left connecting rod 413 is connected to the left side plate 21 of the seat frame assembly by step bolts to form a rotation point E.

[0044] In this embodiment, the left connecting rod mechanism 41 and the right connecting rod mechanism 42 are both arranged on the inner side of the seat frame assembly 2, the left connecting rod mechanism 41 is close to the left side of the seat frame assembly 2, and the right connecting rod mechanism 42 is close to the right side of the seat frame assembly 2.

[0045] Furthermore, in this embodiment, the synchronous drive mechanism 4 also includes a connecting rod synchronization rod 43 arranged between the left connecting rod mechanism 41 and the right connecting rod mechanism 42, and the connecting rod synchronization rod 43 is fixed between the first left connecting rod 411 and the first right connecting rod 421, and is arranged close to the front end of the seat; specifically, the connecting rod synchronization rod 43 is fixed between the first left connecting rod 411 and the first right connecting rod 421 by welding.

[0046] The utility model also provides a vehicle, on which the zero-gravity seat with the single drive mechanism is installed.

[0047] The above are specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A zero-gravity chair with a single drive mechanism, comprising a backrest assembly, a seat frame assembly, a slide rail assembly, and a synchronous drive mechanism; wherein: The backrest assembly is provided with a left angle adjuster upper connecting plate, a right angle adjuster upper connecting plate, an adjuster, and a backrest motor. The backrest assembly is hinged with the upper ends of the slide rail upper connecting plates on the left and right sides of the slide rail assembly to form a rotation point A. After the angle adjuster is unlocked, the backrest assembly flips backward around the rotation point A under the action of the backrest motor; it is characterized in that the lower ends of the left angle adjuster upper connecting plate and the right angle adjuster upper connecting plate are respectively provided with a left connecting rod connecting plate and a right connecting rod connecting plate; The rear end of the seat frame assembly is hinged to the connecting plates on the slide rails on the left and right sides of the slide rail assembly to form a rotation point F; The synchronous drive mechanism includes a left connecting rod mechanism and a right connecting rod mechanism; wherein the left connecting rod mechanism includes a first left connecting rod, a second left connecting rod and a third left connecting rod; the rear end of the first left connecting rod is hinged to the left connecting rod connecting plate to form a rotation point B, and the front end of the first left connecting rod is hinged to the rear ends of the second left connecting rod and the rear ends of the third left connecting rod at the same time to form a rotation point C; the front end of the second left connecting rod is hinged to the connecting plate on the slide rail on the left side of the slide rail assembly to form a rotation point D; the front end of the third left connecting rod is hinged to the front end of the left side plate of the seat frame assembly to form a rotation point E; The right connecting rod mechanism is the same as the left connecting rod mechanism, including a first right connecting rod, a second right connecting rod, and a third right connecting rod. The rear end of the first right connecting rod is hinged to the right connecting rod connecting plate, the front end of the second right connecting rod is hinged to the connecting plate on the right side of the sliding rail assembly, and the front end of the third right connecting rod is hinged to the front end of the right side plate of the seat frame assembly.

2. A zero-gravity chair with a single drive mechanism according to claim 1, characterized in that: The seat also includes a leg support mechanism, which is installed at the front end of the seat frame assembly and is an independently driven mechanism.

3. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The rotation point F is closer to the front end of the seat relative to the rotation point A and is lower in height than the rotation point A; the rotation point B is located below the rotation point A; the height of the rotation point C is located between the rotation point D and the rotation point E and is closer to the rear end of the seat relative to the rotation point D and the rotation point E; the rotation point D is closer to the rotation point C relative to the rotation point E.

4. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The left connecting rod connecting plate and the left angle adjuster upper connecting plate are an integrated structure, and the left connecting rod connecting plate and the right angle adjuster upper connecting plate are an integrated structure.

5. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The rear end of the seat frame assembly is connected to the connecting plates on the slide rails on the left and right sides of the slide rail assembly through step bolts to form a rotation point F; the rear end of the first left connecting rod is connected to the left connecting rod connecting plate through step bolts to form a rotation point B, and the front end of the first left connecting rod is connected to the rear ends of the second left connecting rod and the rear ends of the third left connecting rod through step bolts at the same time to form a rotation point C; the front end of the second left connecting rod is connected to the connecting plate on the slide rail on the left side of the slide rail assembly through step bolts to form a rotation point D; the front end of the third left connecting rod is connected to the left side plate of the seat frame assembly through step bolts to form a rotation point E.

6. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The left connecting rod mechanism and the right connecting rod mechanism are both arranged on the inner side of the seat frame assembly, the left connecting rod mechanism is close to the left side of the seat frame assembly, and the right connecting rod mechanism is close to the right side of the seat frame assembly.

7. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The synchronous drive mechanism also includes a connecting rod synchronization rod arranged between the left connecting rod mechanism and the right connecting rod mechanism. The connecting rod synchronization rod is fixed between the first left connecting rod and the first right connecting rod and is arranged close to the front end of the seat.

8. A zero-gravity chair with a single drive mechanism according to claim 1 or 2, characterized in that: The upper connecting plate of the slide rail of the slide rail assembly is fixed on the upper slide rail of the slide rail assembly, and the upper slide rail slides forward and backward relative to the lower slide rail of the slide rail assembly.

9. A vehicle, characterized in that: The vehicle is equipped with a zero-gravity seat with a single drive mechanism as claimed in any one of claims 1 to 8.

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