Rear seat cushion lifting structure

Abstract

The utility model relates to the field of automobile seat structures, in particular to a rear seat cushion lifting structure which comprises a lifting driving assembly, a lifting connecting assembly and a backrest framework foot, the lifting driving assembly comprises a lifting motor, a lifting lead screw, a lifting driving rod, a driving sleeve shaft, a connecting rotating plate and a clamping jaw, the output end of the lifting motor is fixedly connected with the lifting lead screw, and the output end of the lifting driving rod is fixedly connected with the connecting rotating plate. The driving sleeve shaft is in threaded fit with the lifting lead screw, the lifting driving rod is rotationally connected to the backrest framework foot in a limiting mode, one end of the connecting rotating plate is rotationally connected with the driving sleeve shaft, the other end of the connecting rotating plate is fixedly connected with the lifting driving rod, and the clamping jaw is fixedly installed on the lifting driving rod and used for being connected with a cushion rear end framework 4. According to the utility model, the comfort of adjusting the angle of the seat cushion is realized, the overall structure occupies a small space, can be matched with various complex floors at the rear row of an automobile, is higher in universality, and can also be matched with a seat framework with a low Block value.

Description

Technical Field

[0001] The utility model relates to the field of automobile seat structures, in particular to a rear seat lifting structure. Background Art

[0002] With the development and progress of society, users have put forward higher requirements for the comfort of car seats. The lifting structure on the car seat is to adjust the inclination of the seat to suit the needs of users of different body shapes. However, the existing lifting structure is complex to assemble, has a large number of parts, occupies a large space under the seat, and due to the different shapes of the rear floors of different models, the existing lifting structure cannot be applied to rear floors with complex shapes.

[0003] The technical problem to be solved by this application is: how to design a lifting structure that can adapt to various rear floor shapes. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a rear seat cushion lifting structure.

[0005] The technical solution adopted by the utility model is: a rear seat cushion lifting structure, including a lifting drive component, a lifting connection component and a backrest frame foot, the lifting drive component includes a lifting motor and a lifting screw, a lifting drive rod, a driving sleeve shaft, a connecting rotating plate and a claw, the output end of the lifting motor is fixedly connected to the lifting screw rod, the driving sleeve shaft is threadedly matched with the lifting screw rod, the lifting drive rod is rotatably connected to the backrest frame foot, one end of the connecting rotating plate is rotatably connected to the driving sleeve shaft, and the other end is fixedly connected to the lifting drive rod, the claw is fixedly installed on the lifting drive rod, and the claw is used to connect the rear end frame of the seat cushion.

[0006] In some embodiments, the lifting connection assembly includes an open retaining ring, which is arranged on one side of the claw. The open retaining ring is connected to the claw for limited rotation. A locking torsion spring is provided between the open retaining ring and the claw. One end of the locking torsion spring is fixedly connected to the locking retaining ring, and the other end is fixedly connected to the claw.

[0007] In some embodiments, one end of the claw is fixedly sleeved on the outer wall of the lifting drive rod, and the other end is provided with a connecting slot for connecting to the rear end frame of the seat cushion, and the opening retaining ring is provided with a clamping opening connected to the connecting slot.

[0008] In some embodiments, the lifting connection assembly includes a skeleton connecting rod, both ends of which are fixedly connected to corresponding backrest skeleton feet, the fixed end of the lifting motor is connected to the skeleton connecting rod for limited rotation, the axial direction of the lifting motor is consistent with the axial direction of the skeleton connecting rod and the two are arranged side by side.

[0009] In some embodiments, the lift screw is disposed below the center of the lift drive rod.

[0010] In some embodiments, at least two sets of jaws and split retaining rings are provided.

[0011] The beneficial effects of the utility model are:

[0012] The rear seat cushion lifting structure realizes the comfort of adjusting the seat cushion angle. The overall structure occupies a small space and can match a variety of complex rear floors of cars. It has strong versatility and can also adapt to seat frames with low Block values. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 An enlarged schematic diagram of the structure marked A;

[0015] The numbers and names in the figure correspond to each other as follows: 1. Lifting drive assembly; 2. Lifting connection assembly; 3. Backrest frame foot; 4. Rear end frame of seat cushion; 11. Lifting motor; 12. Lifting screw rod; 13. Mounting seat; 21. Frame connecting rod; 22. Lifting drive rod; 23. Drive sleeve shaft; 24. Connecting rotating plate; 25. Claw; 26. Opening retaining ring; 27. Tightening torsion spring; 28. Positioning pin; 251. Connecting slot; 261. Pressing opening. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides a technical solution: please refer to Figure 1 The rear seat cushion lifting structure includes a lifting drive component 1, a lifting connection component 2 and a backrest frame foot 3, and the lifting drive component 1 and the lifting connection component 2 are arranged between two backrest frame feet 3.

[0018] See also Figure 1 and Figure 2The lifting drive assembly 1 includes a lifting motor 11 and a lifting screw 12, and the lifting connection assembly 2 includes a skeleton connecting rod 21, a lifting drive rod 22, a drive sleeve shaft 23, a connecting rotating plate 24, a clamping claw 25 and an opening retaining ring 26. The two ends of the skeleton connecting rod 21 are respectively fixedly connected to the corresponding backrest skeleton feet 3, and the two ends of the lifting drive rod 22 are respectively connected to the corresponding backrest skeleton feet 3 for limited rotation. The fixed end of the lifting motor 11 is connected to the skeleton connecting rod 21 for rotation, and the output end is fixedly connected to the lifting screw 12. The lifting motor 11 is connected to the skeleton connecting rod 21 through a mounting seat 13, and the mounting seat 13 is fixedly connected to the skeleton connecting rod 21. The fixed end of the lifting motor 11 is connected to the mounting seat 13 for limited rotation. The axial direction of the lifting motor 11 is consistent with the axial direction of the skeleton connecting rod 21 and the two are arranged side by side, which is more compact and saves space. The lifting screw 12 is arranged below the center of the lifting drive rod 22, and the lifting drive rod 22 is more stable when rotating.

[0019] The driving sleeve shaft 23 is sleeved on the outer wall of the lifting screw rod 12 and is threadedly matched with the lifting screw rod 12. The connecting rotating plate 24 is fixedly arranged on the outer wall of the lifting driving rod 22. Both sides of the driving sleeve shaft 23 are respectively connected to the limited rotation of the corresponding connecting rotating plate 24. One end of the clamping claw 25 is fixedly sleeved on the outer wall of the lifting driving rod 22, and the other end is provided with a connecting slot 251 for connecting the rear end frame 4 of the seat cushion. An opening retaining ring 26 is arranged on one side of the clamping claw 25. The opening retaining ring 26 is connected to the clamping claw 25 through a positioning pin 28. A locking torsion spring 27 is arranged between the opening retaining ring 26 and the clamping claw 25. One end of the locking torsion spring 27 is fixedly connected to the locking retaining ring and the other end is fixedly connected to the clamping claw 25. The spring coil of the locking torsion spring 27 is movably sleeved on the outer wall of the positioning pin 28. The opening retaining ring 26 is provided with a clamping opening connected to the connecting slot 251, and the pre-tightening force of the tightening torsion spring 27 makes the opening retaining ring 26 keep the tendency to move toward the lifting driving rod 22, so that the clamping bayonet can clamp the rear end frame 4 of the seat cushion arranged on the connecting slot 251. The claw 25 is provided with a stopper, which limits the excessive rotation of the opening retaining ring 26.

[0020] In order to make the connection between the clamping claw 25 and the rear end frame 4 of the seat cushion more stable, in this embodiment, preferably, at least two groups of the clamping claw 25 and the opening retaining ring 26 are provided.

[0021] The working principle and usage process of the utility model are as follows: when the seat cushion angle needs to be adjusted, the lifting motor 11 works, the lifting screw rod 12 rotates, the driving sleeve shaft 23 moves along the lifting screw rod 12, and the connecting rotating plate 24 moves with the driving sleeve shaft 23. The connecting rotating plate 24 moves in a circular motion around the axis of the lifting driving rod 22, thereby driving the lifting driving rod 22 to rotate, and the claws 25 and the opening retaining ring 26 are lifted and lowered by rotation, and the rear end frame 4 of the seat cushion connected to the claws 25 and the opening retaining ring 26 is lifted and lowered accordingly.

[0022] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. The rear seat cushion lifting structure is characterized by: The invention comprises a lifting drive component (1), a lifting connection component (2) and a backrest frame foot (3), wherein the lifting drive component (1) comprises a lifting motor (11) and a lifting screw rod (12), and the lifting connection component (2) comprises a lifting drive rod (22), a driving sleeve shaft (23), a connecting rotating plate (24) and a clamping claw (25), wherein the output end of the lifting motor (11) is fixedly connected to the lifting screw rod (12), the driving sleeve shaft (23) is threadedly matched with the lifting screw rod (12), the lifting drive rod (22) is rotatably connected to the backrest frame foot (3), one end of the connecting rotating plate (24) is rotatably connected to the driving sleeve shaft (23), and the other end is fixedly connected to the lifting drive rod (22), and the clamping claw (25) is fixedly mounted on the lifting drive rod (22), and the clamping claw (25) is used to connect the rear end frame (4) of the seat cushion.

2. The rear seat cushion lifting structure according to claim 1, characterized in that: The lifting connection assembly (2) comprises an opening retaining ring (26), wherein the opening retaining ring (26) is arranged on one side of the clamping claw (25), and the opening retaining ring (26) is connected to the clamping claw (25) for limited rotation. A locking torsion spring (27) is provided between the opening retaining ring (26) and the clamping claw (25), and one end of the locking torsion spring (27) is fixedly connected to the locking retaining ring, and the other end is fixedly connected to the clamping claw (25).

3. The rear seat cushion lifting structure according to claim 2, characterized in that: One end of the claw (25) is fixedly sleeved on the outer wall of the lifting drive rod (22), and the other end is provided with a connecting slot (251) for connecting to the rear end frame (4) of the seat cushion, and the opening retaining ring (26) is provided with a clamping opening communicated with the connecting slot (251).

4. The rear seat cushion lifting structure according to claim 1, characterized in that: The lifting connection assembly (2) comprises a skeleton connecting rod (21), the two ends of which are respectively fixedly connected to the corresponding backrest skeleton feet (3), the fixed end of the lifting motor (11) is connected to the skeleton connecting rod (21) for limited rotation, and the axial direction of the lifting motor (11) is consistent with the axial direction of the skeleton connecting rod (21), and the two are arranged side by side.

5. The rear seat cushion lifting structure according to claim 1, characterized in that: The lifting screw rod (12) is arranged below the center of the lifting driving rod (22).

6. The rear seat cushion lifting structure according to claim 2, characterized in that: At least two groups of the clamping claws (25) and the opening retaining rings (26) are provided.

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