Lifting device, seat and vehicle

Abstract

The utility model provides a lifting device, a seat and a vehicle, the lifting device is used for a seat cushion, the lifting device comprises a driving mechanism and a transmission assembly, and the driving mechanism is arranged on a base of the seat. The transmission assembly is connected with the driving mechanism and used for lifting the end, close to the backrest, of the seat cushion. According to the lifting device disclosed by the utility model, a gap between the seat cushion and the chair back can be eliminated after the chair back is adjusted, so that a human body can be better supported, and the comfort of the chair is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of automobile seats, and more specifically to a lifting device, a seat and a vehicle. Background Art

[0002] In some application scenarios, when the backrest is adjusted to be flat, there is a height difference between the rear end of the seat cushion and the bottom end of the backrest, resulting in a gap, which makes it impossible to better support the human body. In the prior art, the lifting design of the seat cushion has limitations, which affects the riding comfort. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the first aspect of the present invention provides a lifting device for a seat cushion, the lifting device comprising:

[0005] A driving mechanism, the driving mechanism being disposed on a base of the seat; and

[0006] A transmission assembly is connected to the driving mechanism and is used to lift one end of the seat cushion close to the backrest.

[0007] According to the lifting device of the first aspect of the utility model, the driving mechanism drives the seat cushion to lift through the transmission assembly, so that the gap between the seat cushion and the seat back can be eliminated after the seat back is adjusted, which can better support the human body and improve the comfort of the seat.

[0008] Optionally, the seat cushion also includes a cushion frame; one end of the transmission assembly is rotatably connected to the drive mechanism, and the other end of the transmission assembly is rotatably connected to the cushion frame; the drive mechanism drives the transmission assembly to lift one end of the cushion frame close to the backrest.

[0009] Optionally, the transmission assembly includes:

[0010] an adjusting plate, the adjusting plate being disposed on the base and being rotatable relative to the base around a first horizontal axis, the first end of the adjusting plate being connected to the driving mechanism; and

[0011] A connecting member, wherein a first end of the connecting member is used to be rotatably connected to the seat cushion frame, and a second end of the connecting member is rotatably connected to the second end of the adjustment plate.

[0012] Optionally, the driving mechanism includes a driving member and a driving gear, the driving member is arranged on the base, the output shaft of the driving member is connected to the driving gear, and the adjustment plate is provided with meshing teeth, and the meshing teeth are meshed with the driving gear.

[0013] Optionally, the lifting device also includes a limiting mechanism, which includes a fixing part and a limiting part, the fixing part is fixed relative to the base, the limiting part is arranged on the adjustment plate, the fixing part is connected to the limiting part, and the limiting part is movably arranged relative to the fixing part within a fixed stroke.

[0014] Optionally, the limiting portion is configured as a groove and extends in an arc direction surrounding the first horizontal axis, and the fixing portion passes through the limiting portion.

[0015] Optionally, the lifting device comprises a transmission member and two connecting members;

[0016] The transmission component and the adjustment plate are respectively arranged on two sides of the base;

[0017] Among them, one end of one of the connecting components is rotatably connected to the adjustment plate, and the other end is rotatably connected to the cushion frame; one end of another connecting component is rotatably connected to the transmission component, and the other end is rotatably connected to the cushion frame; the transmission component is rotatable around a first horizontal axis relative to the base of the seat.

[0018] Optionally, the lifting device further includes a fixing plate, the fixing plate is connected to the base, and the fixing portion and the driving mechanism are arranged on the fixing plate.

[0019] Optionally, the lifting device further includes a linkage lifting mechanism, which is disposed at a lifting end of the seat cushion, is at least partially fixed relative to the adjustment plate, and rotates with the rotation of the adjustment plate.

[0020] Optionally, the linkage lifting mechanism comprises a linkage plate and a linkage shaft located in the seat cushion, and the linkage plate is fixedly arranged relative to the adjustment plate;

[0021] The linkage shaft extends in a transverse direction and is fixed to the linkage plate, and rotates along with the rotation of the linkage plate.

[0022] A second aspect of the present invention provides a seat, characterized in that it comprises:

[0023] Base;

[0024] A seat cushion, the seat cushion is arranged on the base, and the front end of the seat cushion is overlapped with the base;

[0025] a chair back, the chair back being disposed on the base and located at a rear end of the seat cushion; and

[0026] According to the above-mentioned lifting device, the lifting device is arranged on the side of the seat cushion.

[0027] According to the seat of the second aspect of the utility model, the gap between the seat cushion and the seat back can be eliminated after the seat back is adjusted, thereby better supporting the human body and improving the comfort of the seat.

[0028] Optionally, one end of the lifting device is connected to the seat cushion, and the other end is connected to the base.

[0029] A third aspect of the utility model provides a vehicle, comprising the seat according to the above.

[0030] The vehicle according to the third aspect of the utility model has high seat comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0032] Figure 1 A three-dimensional schematic diagram of a seat according to a preferred embodiment of the present invention;

[0033] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0034] Figure 3 for Figure 1 A top view of the seat in FIG. 1 , wherein the seat back frame is hidden; and

[0035] Figure 4 It is a three-dimensional schematic diagram of a seat support device according to a preferred embodiment of the utility model.

[0036] Description of Reference Numerals

[0037] 100: Base 101: Cushion frame

[0038] 102: Chair back frame 103: Driving mechanism

[0039] 104: Transmission assembly 110: Drive gear

[0040] 120: Adjustment plate 130: Fixed plate

[0041] 140: driving member 150: connecting member

[0042] 160: Limiting mechanism 161: Fixing part

[0043] 162: Limiting part 170: Transmission component

[0044] 180: horizontal axis 121: meshing teeth

[0045] 190: Linkage lifting mechanism 191: Linkage plate

[0046] 192: Linkage axis AX1: first horizontal axis

[0047] AX2: Second horizontal axis AX3: Third horizontal axis

[0048] D1: Horizontal direction D2: Height direction DETAILED DESCRIPTION

[0049] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0050] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0051] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0052] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0053] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0054] Figures 1 to 4A lifting device is shown, which is used for a seat cushion. The lifting device includes a driving mechanism 103 and a transmission assembly 104. The driving mechanism 103 is arranged on the seat base 100. The transmission assembly 104 is connected to the driving mechanism 103 and is used to lift one end of the seat cushion close to the backrest.

[0055] According to the lifting device of the present invention, the driving mechanism 103 drives the seat cushion to lift through the transmission assembly 104, so that the gap between the seat cushion and the seat back can be eliminated after the seat back is adjusted, which can better support the human body and improve the comfort of the seat.

[0056] Optionally, the seat cushion further includes a cushion frame 101, one end of a transmission assembly 104 is rotatably connected to the driving mechanism 103, and the other end of the transmission assembly 104 is rotatably connected to the cushion frame 101. The driving mechanism 103 drives the transmission assembly 104 to lift one end of the cushion frame 101 close to the backrest. The driving mechanism 103, the transmission assembly 104 and the cushion frame 101 are rotatably connected, which is conducive to saving space and more stable transmission.

[0057] Optionally, the transmission assembly 104 may be a seesaw mechanism, which has a stable transmission mode and can effectively support the seat cushion frame 101 .

[0058] Furthermore, the transmission assembly 104 includes an adjustment plate 120 and a connecting member 150. The adjustment plate 120 is disposed on the seat base 100 and can rotate relative to the seat base 100 around a first horizontal axis AX1. The first end of the adjustment plate 120 is connected to the driving mechanism 103. The first end of the connecting member 150 is used to be rotatably connected to the seat cushion frame 101, and the second end of the connecting member 150 is rotatably connected to the second end of the adjustment plate 120. The driving mechanism 103 drives the adjustment plate 120 to rotate relative to the seat base 100, and drives the seat cushion frame 101 to be lifted through the connecting member 150, so that the gap between the seat cushion and the seat back can be eliminated after the seat back is adjusted, which can better support the human body and improve the comfort of the seat.

[0059] Figure 1A seat according to the utility model is shown (the filling material and outer packaging structure of the seat are hidden), the seat includes a base 100, a cushion frame 101 and a backrest frame 102, the cushion frame 101 is arranged on the base 100, the backrest frame 102 is arranged on the base 100 and is spaced apart from the cushion frame 101 along the lateral direction D1, that is, the backrest frame 102 is located at the rear end of the seat cushion (that is, the lifting end of the seat cushion). The backrest frame 102 is rotatably arranged relative to the base 100, so that the angle of the seat back can be adjusted. When the seat back is laid flat, it is inevitable that there will be a gap between the bottom end of the seat back and the seat cushion along the height direction D2, so that the gap position cannot support the human body well, affecting the comfort of the seat. For this reason, the lifting device according to the utility model can be used to lift the seat cushion independently, thereby eliminating the gap between the seat cushion and the backrest. The following is combined with the attached Figures 1 to 4 Further explanation.

[0060] like Figure 4 As shown, the connecting member 150 is rotatably arranged relative to the seat cushion frame 101 around the second horizontal axis AX2, the connecting member 150 is rotatably arranged relative to the adjustment plate 120 around the third horizontal axis AX3, and the first horizontal axis AX1, the second horizontal axis AX2 and the third horizontal axis AX3 are all arranged in parallel, so that the seat cushion frame 101, the connecting member 150, the adjustment plate 120 and the base 100 are configured as a connecting rod structure, thereby lifting the seat cushion frame 101.

[0061] like Figure 4 As shown, the lifting device includes a fixing plate 130, which is fixed to the base 100 and located on one side of the cushion frame 101. Further, the driving mechanism 103 includes a driving member 140 and a driving gear 110. The driving member 140 can be a motor, which is fixed relative to the base 100, and the driving member 140 can be fixed to the base 100 or fixed to the fixing plate 130. The driving member 140 is located on one side of the fixing plate 130 close to the cushion frame 101, and the output shaft of the driving member 140 is passed through the fixing plate 130 and connected to the driving gear 110. The adjusting plate 120 is provided with meshing teeth 121, and the meshing teeth 121 mesh with the driving gear 110. Furthermore, the first end of the connecting member 150 is rotatably connected to one side of the cushion frame 101. When the driving member 140 is started, the output shaft of the driving member 140 drives the driving gear 110 to rotate, and the adjustment plate 120 is driven to rotate around the first horizontal axis AX1 through the cooperation between the driving gear 110 and the meshing teeth 121 , thereby lifting the seat cushion frame 101 through the connecting member 150 .

[0062] Overall, referring to Figure 3 and Figure 4The lifting device further includes a transmission member 170 and two connecting members 150. The transmission member 170 and the adjustment plate 120 are respectively arranged on both sides of the base 100. One end of one connecting member 150 is rotatably connected to the adjustment plate 120, and the other end is rotatably connected to the cushion frame 101. One end of another connecting member 150 is rotatably connected to the transmission member 170, and the other end is rotatably connected to the cushion frame 101. The transmission member 170 is rotatable around the first horizontal axis AX1 relative to the base 100 of the seat, so that both sides of the cushion frame 101 are supported and driven by the connecting member 150, so that the lifting of the cushion frame 101 is more stable.

[0063] Optionally, the connecting member 150, the adjustment plate 120 and the transmission member 170 can all be sheet metal stamping parts, which have high structural strength and are helpful in saving seat layout space.

[0064] Further, see Figure 1 The lifting device also includes a transverse axis 180, the axis of which is the first horizontal axis AX1. The first end of the transverse axis 180 is passed through the adjustment plate 120 and fixed to the adjustment plate 120, and the second end of the transverse axis 180 is passed through the transmission member 170 and fixed to the transmission member 170, so that when the adjustment plate 120 rotates, the transmission member 170 can be driven to rotate through the transverse axis 180, so that both sides of the cushion frame 101 are supported and lifted, making it more stable.

[0065] Reference Figure 4 The lifting device further includes a limiting mechanism 160, which includes a fixing portion 161 and a limiting portion 162. The fixing portion 161 is fixed relative to the base 100, and specifically, the fixing portion 161 is fixed to the fixing plate 130. The limiting portion 162 is provided on the adjustment plate 120, and the fixing portion 161 is connected to the limiting portion 162. The limiting portion 162 is movably provided within a fixed stroke relative to the fixing portion 161, so that the rotation stroke of the adjustment plate 120 around the first horizontal axis AX1 can be within a certain range, so as to prevent the lifting of the cushion frame 101 from conflicting with other positions of the seat, thereby preventing the driving member 140 from being damaged.

[0066] Specifically, the limiting portion 162 is constructed as a groove and extends in an arc direction around the first horizontal axis AX1, and the fixing portion 161 is constructed as a pin and passes through the limiting portion 162. Therefore, when the adjustment plate 120 rotates around the first horizontal axis AX1, the fixing portion 161 is offset between the two ends of the limiting portion 162 relative to the adjustment plate 120, thereby limiting the rotational travel of the adjustment plate 120.

[0067] In addition, the fixing portion 161 and the driving member 140 are both disposed on the fixing plate 130 , so that the limiting mechanism 160 and the driving mechanism 103 are integrated together, thereby improving assembly efficiency.

[0068] Reference Figure 1 and Figure 2 The lifting device also includes a linkage lifting mechanism 190, which is arranged at the lifting end of the seat cushion. The linkage lifting mechanism 190 is at least partially fixed relative to the adjustment plate 120, and the linkage lifting mechanism 190 rotates with the rotation of the adjustment plate 120.

[0069] In other words, the linkage lifting mechanism 190 is configured to rotate with the rotation of the adjustment plate 120. The lifting position of the seat cushion acted on by the linkage lifting mechanism 190 is located on the side of the first horizontal axis AX1 closer to the seat back, so that the end of the seat cushion closer to the seat back (i.e., the lifting end of the seat cushion) can be further lifted, so that after the seat back is laid flat, the seat cushion can better support the human body.

[0070] Specifically, the linkage lifting mechanism 190 includes two linkage plates 191 and a linkage shaft 192. The two linkage plates 191 are spaced apart along the transverse direction D1 and are respectively located on both sides of the cushion frame 101. The linkage plates 191 are fixedly arranged relative to the adjustment plate 120. Specifically, both ends of the transverse shaft 180 are respectively connected to the two linkage plates 191, so that the linkage plates 191 can rotate with the rotation of the adjustment plate 120. The linkage shaft 192 extends along the transverse direction D1 and is located on the side of the first horizontal axis AX1 closer to the seat back. The linkage shaft 192 is fixed between the two linkage plates 191 and is located in the seat cushion, so that the linkage shaft 192 rotates with the rotation of the linkage plates 191. When the driving member 140 is started, the adjustment plate 120 rotates, so that the transverse shaft 180 rotates, thereby driving the two linkage plates 191 to rotate, so that the linkage shaft 192 rotates around the first horizontal axis AX1, thereby further lifting the seat cushion.

[0071] Optionally, the linkage shaft 192 may be passed through the seat cushion without being connected to the cushion frame 101, and is used to independently lift the lifting end of the seat cushion to support the human body, so that the seat cushion has multiple lifting positions suitable for supporting the human body.

[0072] like Figure 1 and Figure 3 As shown, the utility model also provides a seat, including a base 100, a seat cushion, a seat back and the lifting device according to the above, the seat cushion is arranged on the base 100, and the front end of the seat cushion (i.e., the end opposite to the lifting end of the seat cushion) is overlapped to the base 100. The seat back is arranged on the base 100 and is located at the rear end of the seat cushion (i.e., the lifting end of the seat cushion). The lifting device is arranged on the side of the seat cushion.

[0073] According to the seat of the utility model, the gap between the seat cushion and the seat back can be eliminated after the seat back is adjusted, thereby better supporting the human body and improving the comfort of the seat. In addition, the lifting device is arranged on the side of the seat cushion to prevent the lifting device from contacting the human body on the seat, thereby preventing the lifting device from causing discomfort to the human body.

[0074] The utility model also provides a vehicle, comprising the seat according to the above. The vehicle according to the utility model has a high seat comfort.

[0075] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0076] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A lifting device for a seat cushion, characterized in that: The lifting device comprises: A driving mechanism (103), wherein the driving mechanism (103) is arranged on a base (100) of the seat; and A transmission assembly (104), the transmission assembly (104) being connected to the driving mechanism (103) and used for lifting one end of the seat cushion close to the backrest; The seat cushion also includes a cushion frame (101); one end of the transmission assembly (104) is rotatably connected to the drive mechanism (103), and the other end of the transmission assembly (104) is rotatably connected to the cushion frame (101); the drive mechanism (103) drives the transmission assembly (104) to lift one end of the cushion frame (101) close to the backrest; The transmission assembly (104) comprises an adjustment plate (120) and a connecting member (150); the adjustment plate (120) is arranged on the base (100) and is rotatable relative to the base (100) around a first horizontal axis (AX1); the first end of the adjustment plate (120) is connected to the driving mechanism (103); the first end of the connecting member (150) is used to be rotatably connected to the seat cushion frame (101); the second end of the connecting member (150) is rotatably connected to the second end of the adjustment plate (120).

2. The lifting device according to claim 1, characterized in that: The driving mechanism (103) comprises a driving member (140) and a driving gear (110); the driving member (140) is arranged on the base (100); an output shaft of the driving member (140) is connected to the driving gear (110); the adjusting plate (120) is provided with meshing teeth (121); and the meshing teeth (121) mesh with the driving gear (110).

3. The lifting device according to claim 1, characterized in that: The lifting device also includes a limiting mechanism (160), the limiting mechanism (160) includes a fixing portion (161) and a limiting portion (162), the fixing portion (161) is fixed relative to the base (100), the limiting portion (162) is arranged on the adjustment plate (120), the fixing portion (161) is connected to the limiting portion (162), and the limiting portion (162) is movably arranged within a fixed stroke relative to the fixing portion (161).

4. The lifting device according to claim 3, characterized in that: The limiting portion (162) is configured as a groove and extends in an arc direction surrounding the first horizontal axis (AX1), and the fixing portion (161) is disposed through the limiting portion (162).

5. The lifting device according to claim 1, characterized in that: The lifting device comprises a transmission component (170) and two connecting components (150); The transmission component (170) and the adjustment plate (120) are respectively arranged on two sides of the base (100); Among them, one end of one of the connecting members (150) is rotatably connected to the adjustment plate (120), and the other end is rotatably connected to the seat cushion frame (101); one end of another of the connecting members (150) is rotatably connected to the transmission member (170), and the other end is rotatably connected to the seat cushion frame (101); the transmission member (170) is rotatable around a first horizontal axis (AX1) relative to the base (100) of the seat.

6. The lifting device according to claim 3, characterized in that: The lifting device further comprises a fixing plate (130), wherein the fixing plate (130) is connected to the base (100), and the fixing portion (161) and the driving mechanism (103) are arranged on the fixing plate (130).

7. The lifting device according to claim 1, characterized in that: The lifting device further comprises a linkage lifting mechanism (190), wherein the linkage lifting mechanism (190) is arranged at the lifting end of the seat cushion, the linkage lifting mechanism (190) is at least partially fixed relative to the adjustment plate (120), and the linkage lifting mechanism (190) rotates with the rotation of the adjustment plate (120).

8. The lifting device according to claim 7, characterized in that: The linkage lifting mechanism (190) comprises a linkage plate (191) and a linkage shaft (192) located in the seat cushion, and the linkage plate (191) is fixedly arranged relative to the adjustment plate (120); The linkage shaft (192) extends along the transverse direction D1 and is fixed to the linkage plate (191), and rotates along with the rotation of the linkage plate (191).

9. A seat, characterized in that: include: Base (100); A seat cushion, the seat cushion being arranged on the base (100), and the front end of the seat cushion being overlapped with the base (100); A chair back, the chair back being arranged on the base (100) and located at the rear end of the seat cushion; as well as The lifting device according to any one of claims 1 to 8, wherein the lifting device is arranged on a side of the seat cushion.

10. The seat according to claim 9, characterized in that One end of the lifting device is connected to the seat cushion, and the other end is connected to the base (100).

11. A vehicle, characterized in that: Comprising a seat according to claim 9 or 10.

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