Double-four-bar seat lifting adjusting mechanism and system

Abstract

The utility model relates to the technical field of automobile seats, in particular to a double-four-bar seat lifting adjusting mechanism and system.The double-four-bar seat lifting adjusting mechanism comprises a sliding rail, a third rotating frame, a backrest and an adjusting seat, and the adjusting seat comprises a sliding frame, a second rotating frame, a first rotating frame and a pull rod; when a user has a rest, the backrest can be rotated and laid flat on the third rotating frame, then the first rotating frame is pulled through the pull rod so that the first rotating frame can rotate on the second rotating frame towards the side away from the third rotating frame, and after the first rotating frame finishes rotating, the second rotating frame acts, rotates on the sliding frame and gets close to the third rotating frame; according to the arrangement of the adjustable seat, the seat can be semi-automatically rotated and lifted up, so that the seat and the backrest are located on the same straight line, no height difference exists, when the user lies flat for rest, the waist can be effectively relaxed, and the use experience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a double four-rod seat lifting and adjusting mechanism and system. Background Art

[0002] As car owners' requirements for car seat comfort continue to increase, people have higher requirements for car comfort, especially commercial vehicles, MPV models and future driverless cars. However, the adjustment mechanisms of existing car seats generally focus on functionality rather than comfort.

[0003] At present, the prior art CN113246817A discloses an adjustment structure of a car seat and an adjustment method thereof, including: a lower slide rail relatively arranged and fixedly installed on the bottom plate of the vehicle body; a first upper slide rail and a second upper slide rail slidably arranged on the lower slide rail, the second upper slide rail being located near the backrest of the seat; a first connecting rod having one end rotationally connected to the first upper slide rail and the other end rotationally connected to the end of the seat frame away from the backrest; and a second connecting rod having one end rotationally connected to the second upper slide rail and the other end connected to the end of the seat frame near the backrest, by moving the first upper slide rail back and forth along the lower slide rail to drive the first connecting rod to rotate, and tilt the seat frame, thereby changing the angle between the seat frame and the bottom plate of the vehicle body. The utility model effectively solves the problem of large limitation of the seat adjustment range, by setting two upper slide rails on one lower slide rail to expand the seat adjustment range, which can not only improve the functionality of the seat, but also meet the passengers' needs for comfort.

[0004] However, when the backrest of the above-mentioned car seat is lowered for rest, there is a height difference between the seat and the backrest, which causes the waist of the user to be suspended in the air when the user lies flat for rest, and the waist cannot be relaxed, resulting in a poor user experience. Utility Model Content

[0005] The purpose of the utility model is to provide a double four-rod seat lifting adjustment mechanism and system, aiming to solve the problem that when the backrest of the existing car seat is lowered for rest, there is a height difference between the seat and the backrest, which causes the user's waist to be suspended in the air and unable to relax when lying flat for rest, resulting in a poor user experience.

[0006] To achieve the above-mentioned purpose, in a first aspect, the utility model provides a double four-rod seat lifting and adjusting mechanism, comprising a slide rail, a third rotating frame, a backrest and an adjusting seat, wherein the adjusting seat is arranged on one side of the slide rail, the third rotating frame is fixedly connected to the slide rail and is located on a side of the slide rail close to the adjusting seat, the backrest is rotatably connected to the third rotating frame and is located on a side of the third rotating frame away from the slide rail, and the adjusting seat comprises a slide frame, a second rotating frame, a first rotating frame and a pull rod;

[0007] The sliding frame is slidably arranged on one side of the slide rail, the second rotating frame is arranged on the side of the sliding frame away from the slide rail, the first rotating frame is arranged on the side of the second rotating frame away from the slide rail, and the pull rod is fixedly connected to the first rotating frame and is located on one side of the first rotating frame.

[0008] Wherein, the first rotating frame includes a rotating plate, a carrying arm and a connecting frame, the rotating plate is rotatably connected to the second rotating frame and is located on a side of the second rotating frame away from the sliding frame, the carrying arm is rotatably connected to the rotating plate and is located on a side of the rotating plate away from the second rotating frame, and the connecting frame is fixedly connected to the carrying arm and is located on one side of the carrying arm.

[0009] Wherein, the rotating plate includes a first rotating head and a connecting plate, the connecting plate is rotatably connected to the second rotating frame and is located on the side of the second rotating frame away from the sliding frame, the first rotating head is rotatably connected to the connecting plate and fixedly connected to the supporting arm, and is located between the connecting plate and the supporting arm.

[0010] Among them, the second rotating frame includes a driving cylinder, a rotating arm and a rotating rod, the rotating arm is rotatably connected to the connecting plate and is located on the side of the connecting plate away from the first rotating head, the rotating rod is rotatably connected to the rotating arm and is rotatably connected to the sliding frame and is located between the sliding frame and the rotating arm, and the driving cylinder is fixedly connected to the sliding frame and is fixedly connected to the rotating arm and is located on one side of the rotating arm.

[0011] Among them, the third rotating frame includes a mounting frame and a second rotating head, the mounting frame is fixedly connected to the sliding frame and is located on the side of the sliding frame away from the slide rail, the second rotating head is rotatably connected to the mounting frame and fixedly connected to the backrest, and is located between the backrest and the mounting frame.

[0012] In a second aspect, the utility model further provides a double four-rod seat lifting and adjusting system, and the double four-rod seat lifting and adjusting system includes the double four-rod seat lifting and adjusting mechanism.

[0013] In a third aspect, the utility model also provides a double four-rod seat lifting and adjusting method, comprising the following steps:

[0014] Rotate the backrest so that the backrest is rotated and laid flat on the third rotating frame;

[0015] Pulling the first rotating frame by pulling the pull rod makes the first rotating frame rotate on the second rotating frame to a side away from the third rotating frame;

[0016] The second rotating frame moves and rotates on the sliding frame, approaching the third rotating frame, so that the seat is flush with the backrest, and the lifting adjustment of the seat is completed.

[0017] The utility model discloses a double four-rod seat lifting and adjusting mechanism, the setting of the slide rail can make the adjustable seat slide forward and backward on the frame, so as to adjust the position of the adjustable seat. When the user needs to rest, the backrest can be rotated so that the backrest is rotated and laid flat on the third rotating frame. At this time, the pull rod is pulled again, and the pull rod is pulled by force to pull the first rotating frame so that the first rotating frame is rotated on the second rotating frame to the side away from the third rotating frame. After the rotation of the first rotating frame is completed, the second rotating frame moves and rotates on the sliding frame and approaches the third rotating frame, so that the seat is flush with the flat backrest. At this time, the user can lie on the seat to rest. The setting of the adjustable seat can semi-automatically rotate and raise the seat height so that the seat and the backrest are in a straight line without height difference, so that the waist of the user can be effectively relaxed when lying flat to rest, and the user experience is better. The problem that there is a height difference between the seat and the backrest when the backrest is lowered for rest in the existing automobile seat, resulting in the waist of the user being suspended in the air and unable to relax when lying flat to rest, and the user experience is poor, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The utility model is a structural schematic diagram of a double four-rod seat lifting and adjusting mechanism.

[0020] Figure 2 The utility model provides a schematic diagram of a double four-rod seat lifting adjustment mechanism that is adjusted to be flush with a flat backrest.

[0021] Figure 3 The utility model provides a side view of a double four-rod seat lifting adjustment mechanism that is flush with a flat backrest after adjustment.

[0022] Figure 4 The utility model is a schematic diagram of a double four-rod seat lifting adjustment mechanism after adjustment and a folding backrest.

[0023] Figure 5 The utility model provides a flow chart of a double four-rod seat lifting and adjusting method.

[0024] In the figure: 1-slide rail, 2-backrest, 3-sliding frame, 4-pull rod, 5-bearing arm, 6-connecting frame, 7-first rotating head, 8-connecting plate, 9-driving cylinder, 10-rotating arm, 11-rotating rod, 12-mounting frame, 13-second rotating head. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] See also Figures 1 to 4 In the first aspect, the utility model provides a double four-rod seat lifting and adjusting mechanism, comprising a slide rail 1, a third rotating frame, a backrest 2 and an adjusting seat, wherein the adjusting seat is arranged on one side of the slide rail 1, the third rotating frame is fixedly connected to the slide rail 1 and is located on the side of the slide rail 1 close to the adjusting seat, the backrest 2 is rotatably connected to the third rotating frame and is located on the side of the third rotating frame away from the slide rail 1, and the adjusting seat comprises a slide frame 3, a second rotating frame, a first rotating frame and a pull rod 4;

[0027] The sliding frame 3 is slidably arranged on one side of the slide rail 1, the second rotating frame is arranged on the side of the sliding frame 3 away from the slide rail 1, the first rotating frame is arranged on the side of the second rotating frame away from the slide rail 1, and the pull rod 4 is fixedly connected to the first rotating frame and is located on one side of the first rotating frame.

[0028] The user can lie on the seat and rest, and the setting of the adjustable seat can semi-automatically rotate and raise the seat height, so that the seat and the backrest 2 are in a straight line without a height difference, so that the waist of the user can be effectively relaxed when lying flat to have a better user experience, and solves the problem that when the backrest of the existing car seat is lowered to have a rest, there is a height difference between the seat and the backrest, resulting in the waist of the user being suspended in the air and unable to be relaxed when lying flat to have a rest, and the user experience is poor.

[0029] Furthermore, the first rotating frame includes a rotating plate, a supporting arm 5 and a connecting frame 6, the rotating plate is rotatably connected to the second rotating frame and is located on a side of the second rotating frame away from the sliding frame 3, the supporting arm 5 is rotatably connected to the rotating plate and is located on a side of the rotating plate away from the second rotating frame, and the connecting frame 6 is fixedly connected to the supporting arm 5 and is located on one side of the supporting arm 5.

[0030] In this embodiment, the load-bearing arm 5 is used to install the seat and support the seat. The setting of the connecting frame 6 strengthens the strength of the load-bearing arm 5 and also supports the seat, thereby preventing the middle of the seat from being suspended in the air and sinking after the user sits down. The setting of the rotating plate rotates around the second rotating frame under the pulling force of the pull rod 4 to achieve the first rotation and lifting of the seat.

[0031] Furthermore, the rotating plate includes a first rotating head 7 and a connecting plate 8, the connecting plate 8 is rotatably connected to the second rotating frame and is located on the side of the second rotating frame away from the sliding frame 3, the first rotating head 7 is rotatably connected to the connecting plate 8 and is fixedly connected to the supporting arm 5, and is located between the connecting plate 8 and the supporting arm 5.

[0032] In this embodiment, the arrangement of the connecting plate 8 and the first rotating head 7 enables the carrying arm 5 to rotate around the second rotating frame to achieve the first rotation and lifting of the seat.

[0033] Furthermore, the second rotating frame includes a driving cylinder 9, a rotating arm 10 and a rotating rod 11. The rotating arm 10 is rotatably connected to the connecting plate 8 and is located on the side of the connecting plate 8 away from the first rotating head 7. The rotating rod 11 is rotatably connected to the rotating arm 10 and is rotatably connected to the sliding frame 3 and is located between the sliding frame 3 and the rotating arm 10. The driving cylinder 9 is fixedly connected to the sliding frame 3 and is fixedly connected to the rotating arm 10 and is located on one side of the rotating arm 10.

[0034] In this embodiment, after the supporting arm 5 completes the first rotation and lifting, the driving cylinder 9 is energized and extended, thereby pushing the rotating arm 10 to rotate. The rotation of the rotating arm 10 causes the rotating rod 11 to rotate on the sliding frame 3, thereby lifting the seat for a second time and moving the seat closer to the third rotating frame so that the seat is flush with the backrest 2.

[0035] Furthermore, the third rotating frame includes a mounting frame 12 and a second rotating head 13, the mounting frame 12 is fixedly connected to the sliding frame 3 and is located on the side of the sliding frame 3 away from the slide rail 1, the second rotating head 13 is rotatably connected to the mounting frame 12 and fixedly connected to the backrest 2, and is located between the backrest 2 and the mounting frame 12.

[0036] In this embodiment, the installation of the mounting frame 12 provides installation conditions for the second rotating head 13. The installation of the second rotating head 13 can make the backrest 2 rotate on the mounting frame 12 to achieve the action of lowering the backrest 2.

[0037] Furthermore, the backrest 2 can be rotated on the mounting frame 12 toward a side close to the seat, so that the backrest 2 can be folded on the seat, allowing rear passengers to put their legs or luggage, thereby improving practicality.

[0038] In a second aspect, the utility model further provides a double four-rod seat lifting and adjusting system, and the double four-rod seat lifting and adjusting system includes the double four-rod seat lifting and adjusting mechanism.

[0039] See also Figure 5 In a third aspect, the utility model also provides a double four-rod seat lifting and adjusting method, comprising the following steps:

[0040] S1 rotates the backrest 2 so that the backrest 2 is rotated and laid flat on the third rotating frame;

[0041] Specifically, under the action of the second rotating head 13 , the user can rotate the backrest 2 so that the backrest 2 rotates on the connecting frame 6 , thereby realizing the action of lowering the backrest 2 .

[0042] S2 pulls the first rotating frame by pulling the pull rod 4, so that the first rotating frame rotates on the second rotating frame to a side away from the third rotating frame;

[0043] Specifically, by pulling the pull rod 4 to pull the carrying arm 5, the carrying arm 5 rotates around the second rotating frame and away from the third rotating frame under the action of the connecting plate 8 and the first rotating head 7, thereby realizing the first rotation and lifting of the seat.

[0044] S3: the second rotating frame moves and rotates on the sliding frame 3, approaching the third rotating frame, so that the seat is flush with the backrest 2, and the lifting adjustment of the seat is completed.

[0045] Specifically, after the supporting arm 5 completes the first rotation and lifting, the driving cylinder 9 is energized and extended, pushing the rotating arm 10 to rotate. The rotation of the rotating arm 10 causes the rotating rod 11 to rotate on the sliding frame 3, thereby lifting the seat for a second time and moving the seat closer to the third rotating frame so that the seat is flush with the backrest 2, completing the lifting adjustment of the seat.

[0046] The above disclosure is only a preferred embodiment of a double four-bar seat lifting and adjusting mechanism, system and method of the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A double four-rod seat lifting and adjusting mechanism, characterized in that: It includes a slide rail, a third rotating frame, a backrest and an adjustable seat, wherein the adjustable seat is arranged on one side of the slide rail, the third rotating frame is fixedly connected to the slide rail and is located on the side of the slide rail close to the adjustable seat, the backrest is rotatably connected to the third rotating frame and is located on the side of the third rotating frame away from the slide rail, and the adjustable seat includes a slide frame, a second rotating frame, a first rotating frame and a pull rod; The sliding frame is slidably arranged on one side of the slide rail, the second rotating frame is arranged on the side of the sliding frame away from the slide rail, the first rotating frame is arranged on the side of the second rotating frame away from the slide rail, and the pull rod is fixedly connected to the first rotating frame and is located on one side of the first rotating frame.

2. A double four-rod seat lifting and adjusting mechanism as claimed in claim 1, characterized in that: The first rotating frame includes a rotating plate, a carrying arm and a connecting frame. The rotating plate is rotatably connected to the second rotating frame and is located on a side of the second rotating frame away from the sliding frame. The carrying arm is rotatably connected to the rotating plate and is located on a side of the rotating plate away from the second rotating frame. The connecting frame is fixedly connected to the carrying arm and is located on one side of the carrying arm.

3. A double four-rod seat lifting and adjusting mechanism as claimed in claim 2, characterized in that: The rotating plate includes a first rotating head and a connecting plate, the connecting plate is rotatably connected to the second rotating frame and is located on the side of the second rotating frame away from the sliding frame, the first rotating head is rotatably connected to the connecting plate and is fixedly connected to the carrying arm, and is located between the connecting plate and the carrying arm.

4. A double four-rod seat lifting and adjusting mechanism as claimed in claim 3, characterized in that: The second rotating frame includes a driving cylinder, a rotating arm and a rotating rod. The rotating arm is rotatably connected to the connecting plate and is located on a side of the connecting plate away from the first rotating head. The rotating rod is rotatably connected to the rotating arm and is rotatably connected to the sliding frame and is located between the sliding frame and the rotating arm. The driving cylinder is fixedly connected to the sliding frame and to the rotating arm and is located on one side of the rotating arm.

5. The double four-rod seat lifting and adjusting mechanism according to claim 1, characterized in that: The third rotating frame includes a mounting frame and a second rotating head. The mounting frame is fixedly connected to the sliding frame and is located on a side of the sliding frame away from the slide rail. The second rotating head is rotatably connected to the mounting frame and fixedly connected to the backrest and is located between the backrest and the mounting frame.

6. A double four-rod seat lifting and adjusting system, comprising a double four-rod seat lifting and adjusting mechanism as claimed in any one of claims 1 to 5.

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