Automobile seat backrest framework

Abstract

The utility model discloses an automobile seat backrest framework which comprises a framework body and adjusting frames, the adjusting frames are symmetrically installed on the inner wall of the framework body, driving motors are installed at the top ends of the adjusting frames, lead screws are movably installed in the adjusting frames, the output ends of the driving motors are connected with the lead screws, and the adjusting frames are connected with the driving motors. The surfaces of the lead screws are sleeved with threaded sleeves, the threaded sleeves are in threaded connection with the lead screws, a moving rod is installed between the two sets of threaded sleeves, two sets of waist supporting plates are arranged on the surface of the moving rod, a bearing rod is installed on the inner wall of the portion, above the adjusting frame, of the framework body, and the waist supporting plates are connected with the bearing rod. And an integrated frame is mounted on the inner wall of the framework body above the bearing rods. According to the adjustable waist support, the waist angle matched with a user can be conveniently adjusted, the back of the user can be elastically supported, the neck of the user can be knocked and massaged conveniently, and the use comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat back frame technology, specifically to a car seat back frame. Background Technology

[0002] The backrest frame of a car seat is an important component of the car seat. Its main functions are to bear loads, transmit torques, and increase the stability of the seat. The backrest frame is usually made of metal materials, commonly including thin steel plates and tubing. Thin steel plates are formed by stamping, while tubing is fixed by welding. The backrest frame plays a crucial role in the car seat, not only determining the comfort and safety of the seat, but also protecting the occupants in the event of a collision. Traditional backrest frames are often inconvenient for adjusting the back angle. To improve this situation, a new type of car seat backrest frame has been proposed.

[0003] For example, the automobile seat back frame disclosed in the authorization announcement number CN219214801U includes a frame support column, a fixed connecting frame is fixedly sleeved on the outer surface of the frame support column, a fixed mounting ring is fixedly sleeved on the top of the frame support column, a connecting limiting guide rail is fixedly connected to the top of the fixed mounting ring, and a movable mounting block is movably connected to the inner side of the connecting limiting guide rail.

[0004] Although it achieves the function of using a fixed mounting ring, connecting limit guide rail, movable mounting block, connecting top frame, connecting positioning mechanism and fixed positioning through hole, it is convenient to adjust the position of the movable mounting block through the connecting positioning mechanism and fixed positioning through hole, so that the position of the movable mounting block and the connecting top frame can be adjusted, thereby enabling the movable mounting block and the connecting top frame to effectively assist the driver's head support, so that the driver is in a comfortable position and improves driving safety;

[0005] However, it does not solve the problem that the existing seat back frame is not conducive to convenient adjustment to adapt to the user's lumbar angle, nor to providing elastic support for the user's back and tapping massage for the neck, thus affecting the comfort of use. Utility Model Content

[0006] The purpose of this utility model is to provide a car seat backrest frame to solve the problems mentioned in the background art, such as the inconvenience of adjusting the seat backrest frame to fit the user's lumbar angle, the lack of elastic support for the user's back and the lack of massage for the neck, which affect the comfort of use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a car seat backrest frame, comprising a frame body and an adjustment frame. The adjustment frames are symmetrically installed on the inner wall of the frame body. A drive motor is installed at the top of each adjustment frame. A lead screw is movably installed inside each adjustment frame, and the output end of the drive motor is connected to the lead screw. Threaded sleeves are fitted onto the surface of each lead screw, and the threaded sleeves are threadedly connected to the lead screw. A moving rod is installed between two sets of threaded sleeves. Two sets of lumbar support plates are provided on the surface of the moving rod. A bearing rod is installed on the inner wall of the frame body above the adjustment frame, and the lumbar support plates are connected to the bearing rod. An integrated frame is installed on the inner wall of the frame body above the bearing rod, and a support column is installed on the inner wall of the frame body above the integrated frame.

[0008] Preferably, the integrated frame has a sliding rod inside, and a sliding sleeve is symmetrically slidably mounted on the surface of the sliding rod. A spring is provided on the surface of the sliding rod on one side of the sliding sleeve.

[0009] Preferably, a linkage arm is movably installed on the side wall of the sliding sleeve, and a bearing plate is provided on the outside of the integrated frame, with the linkage arm movably connected to the bearing plate.

[0010] Preferably, an integrated plate is symmetrically installed at the top of the support column, and the integrated plate is fixedly connected to the support column.

[0011] Preferably, each of the integrated boards is equipped with a servo motor at its bottom end, and the motor shaft of each servo motor extends to the top of the integrated board and is equipped with a rotating arm.

[0012] Preferably, one end of each rotating arm is provided with a connecting arm, and the connecting arm is movably connected to the rotating arm.

[0013] Preferably, a reciprocating rod is movably mounted on the end of each connecting arm away from the rotating arm, and a limit block is mounted on the top of each integrated plate, with the reciprocating rod and the limit block being slidably connected.

[0014] Preferably, a massage frame is provided on one side of the support column, and the reciprocating rod is connected to the massage frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the seat back frame not only realizes convenient adjustment to adapt to the user's waist angle, but also facilitates elastic support for the user's back and tapping massage for the neck, and improves the comfort of use.

[0016] (1) The drive motor drives the lead screw to rotate, the lead screw drives the threaded sleeve to move, the threaded sleeve drives the moving rod to move downward, and the moving rod pulls the lumbar support plate. The lumbar support plate is a plate with good toughness and can be deformed. The lumbar support plate deforms under the pulling action of the moving rod, the degree of bending decreases, and thus increases the contact area between the lumbar support plate and the waist. If the operation is reversed, the degree of bending of the lumbar support plate will be increased, and the contact area between the lumbar support plate and the waist will be reduced. This allows for flexible adjustment of the contact area between the waist and the lumbar support plate, thereby adjusting the angle of the person's waist. When the person leans against it, the back first contacts the bearing plate, the person's body squeezes the bearing plate, the bearing plate drives the linkage arm to rotate, the linkage arm drives the sliding sleeve to slide on the surface of the sliding rod, the sliding sleeve squeezes the spring, and the spring cancels out the force of this part, avoiding the person's rigid contact with the seat back, thereby improving the comfort of the person leaning against the seat, realizing convenient adjustment to adapt to the user's waist angle, facilitating the elastic support of the user's back, and improving the comfort of use.

[0017] (2) The servo motor drives the rotating arm to rotate, the rotating arm drives the connecting arm to swing back and forth, the connecting arm drives the reciprocating rod to move back and forth inside the limit block, the reciprocating rod drives the massage frame to move back and forth, and the massage frame taps and massages the user's neck to further improve the user's comfort. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the lumbar support plate of this utility model;

[0020] Figure 3 This is a top sectional view of the integrated frame of this utility model.

[0021] Figure 4 This is a three-dimensional perspective structural diagram of the support plate of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the massage frame of this utility model.

[0023] In the diagram: 1. Frame body; 2. Moving rod; 3. Waist support plate; 4. Bearing rod; 5. Adjustment frame; 6. Integrated frame; 7. Support column; 8. Lead screw; 9. Drive motor; 10. Threaded sleeve; 11. Bearing plate; 12. Massage frame; 13. Slide rod; 14. Slide sleeve; 15. Spring; 16. Linkage arm; 17. Reciprocating rod; 18. Limit block; 19. Integrated plate; 20. Servo motor; 21. Rotating arm; 22. Connecting arm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-5 An embodiment of this utility model provides: a car seat back frame, including a frame body 1 and an adjustment frame 5. The adjustment frames 5 are symmetrically installed on the inner wall of the frame body 1. The top of each adjustment frame 5 is equipped with a drive motor 9, which serves as a power drive. The interior of each adjustment frame 5 is movably equipped with a lead screw 8, and the output end of the drive motor 9 is connected to the lead screw 8. The surface of each lead screw 8 is fitted with a threaded sleeve 10, and the threaded sleeve 10 is threadedly connected to the lead screw 8. A moving rod 2 is installed between the two sets of threaded sleeves 10. The surface of the moving rod 2 is provided with two sets of lumbar support plates 3. A bearing rod 4 is installed on the inner wall of the frame body 1 above the adjustment frame 5, and the lumbar support plates 3 are connected to the bearing rod 4. An integrated frame 6 is installed on the inner wall of the frame body 1 above the bearing rod 4. A support column 7 is installed on the inner wall of the frame body 1 above the integrated frame 6.

[0026] The lumbar support plate 3 is positioned at the waist of the user. When the drive motor 9 is turned on, it rotates the lead screw 8. With the threaded connection between the threaded sleeve 10 and the lead screw 8, the lead screw 8 moves the threaded sleeve 10, which in turn moves the moving rod 2 downwards. Under the fixed support of the bearing rod 4, the moving rod 2 pulls the lumbar support plate 3. The lumbar support plate 3 is made of a flexible and deformable material. Under the pulling action of the moving rod 2, the lumbar support plate 3 deforms, reducing its bending degree and thus increasing the contact area between the lumbar support plate 3 and the waist. Conversely, operating in the opposite direction increases the bending degree of the lumbar support plate 3, reducing the contact area between the lumbar support plate 3 and the waist. This allows for… The contact area between the waist and the lumbar support plate 3 can be flexibly adjusted, thereby adjusting the angle of the user's waist. When the user leans against the support plate 11, the back first contacts the support plate 11. The user's body presses against the support plate 11, which drives the linkage arm 16 to rotate. The linkage arm 16 drives the sliding sleeve 14 to slide on the surface of the sliding rod 13. The sliding sleeve 14 compresses the spring 15, which cancels out the force and prevents the user from rigidly contacting the seat back. This improves the comfort of the user when leaning against the seat, and allows for convenient adjustment to adapt to the user's waist angle. It also facilitates elastic support for the user's back and improves the comfort of use.

[0027] The integrated frame 6 has a slide rod 13 inside, and a slide sleeve 14 is symmetrically slidably installed on the surface of the slide rod 13. A spring 15 is provided on the surface of the slide rod 13 on one side of the slide sleeve 14. A linkage arm 16 is movably installed on the side wall of the slide sleeve 14. A bearing plate 11 is provided on the outside of the integrated frame 6, and the linkage arm 16 is movably connected to the bearing plate 11.

[0028] An integrated plate 19 is symmetrically installed on the top of the support column 7 and is fixedly connected to the support column 7. A servo motor 20 is installed at the bottom of the integrated plate 19. The servo motor 20 plays the role of power drive. The motor shaft of the servo motor 20 extends to the top of the integrated plate 19 and is equipped with a rotating arm 21.

[0029] One end of each rotating arm 21 is provided with a connecting arm 22, and the connecting arm 22 is movably connected to the rotating arm 21. The end of the connecting arm 22 away from the rotating arm 21 is movably installed with a reciprocating rod 17. The top of each integrated plate 19 is installed with a limit block 18, and the reciprocating rod 17 is slidably connected to the limit block 18.

[0030] A massage frame 12 is provided on one side of the support column 7, and the reciprocating rod 17 is connected to the massage frame 12;

[0031] The user's neck corresponds to the position of the massage frame 12. When a neck massage is needed, the servo motor 20 is turned on, which drives the rotating arm 21 to rotate. The rotating arm 21 drives the connecting arm 22 to swing back and forth. Under the limiting cooperation of the limiting block 18, the connecting arm 22 drives the reciprocating rod 17 to move back and forth inside the limiting block 18. The reciprocating rod 17 drives the massage frame 12 to move back and forth. The massage frame 12 then performs a tapping massage on the user's neck to further improve the user's comfort.

[0032] Working principle: The lumbar support plate 3 corresponds to the waist of the person. The drive motor 9 drives the lead screw 8 to rotate, which in turn drives the threaded sleeve 10 to move. The threaded sleeve 10 then drives the moving rod 2 to move downward. Under the fixed support of the bearing rod 4, the moving rod 2 pulls the lumbar support plate 3. The lumbar support plate 3 is a flexible and deformable material. Under the pulling action of the moving rod 2, the lumbar support plate 3 deforms, reducing its bending degree, thereby increasing the contact area between the lumbar support plate 3 and the waist. Conversely, if operated in the opposite direction, the bending degree of the lumbar support plate 3 is increased, reducing the contact area between the lumbar support plate 3 and the waist. This allows for flexible adjustment of the contact area between the waist and the lumbar support plate 3, thereby adjusting the angle of the person's waist. When the person leans against it, their back first contacts the bearing plate 11, and the person's body presses against the bearing plate 11. The support plate 11 drives the linkage arm 16 to rotate, and the linkage arm 16 drives the sliding sleeve 14 to slide on the surface of the sliding rod 13. The sliding sleeve 14 compresses the spring 15, and the spring 15 cancels out the force, preventing the person from rigidly contacting the seat back, thereby improving the comfort of the person leaning against the seat. The person's neck corresponds to the position of the massage frame 12. When the neck needs to be massaged, the servo motor 20 drives the rotating arm 21 to rotate, and the rotating arm 21 drives the connecting arm 22 to swing back and forth. The connecting arm 22 drives the reciprocating rod 17 to move back and forth inside the limit block 18, and the reciprocating rod 17 drives the massage frame 12 to move back and forth. The massage frame 12 taps and massages the user's neck to relieve the user's neck pain. The above is the complete usage of the car seat back frame.

Claims

1. A car seat backrest frame, comprising a frame body (1) and an adjustment frame (5), characterized in that: Adjustment frames (5) are symmetrically installed on the inner wall of the skeleton body (1). A drive motor (9) is installed at the top of each adjustment frame (5). A lead screw (8) is movably installed inside each adjustment frame (5). The output end of the drive motor (9) is connected to the lead screw (8). A threaded sleeve (10) is fitted on the surface of each lead screw (8). The threaded sleeve (10) is threadedly connected to the lead screw (8). A moving rod (2) is installed between the two sets of threaded sleeves (10). Two sets of waist support plates (3) are provided on the surface of the moving rod (2). A bearing rod (4) is installed on the inner wall of the skeleton body (1) above the adjustment frame (5). The waist support plate (3) is connected to the bearing rod (4). An integrated frame (6) is installed on the inner wall of the skeleton body (1) above the bearing rod (4). A support column (7) is installed on the inner wall of the skeleton body (1) above the integrated frame (6).

2. The car seat backrest frame according to claim 1, characterized in that: The integrated frame (6) is provided with a slide rod (13) inside. A sliding sleeve (14) is symmetrically slidably installed on the surface of the slide rod (13). A spring (15) is provided on the surface of the slide rod (13) on one side of the sliding sleeve (14).

3. The car seat backrest frame according to claim 2, characterized in that: All sliding sleeves (14) are movably mounted on their side walls. The integrated frame (6) is provided with a bearing plate (11) on its exterior, and the sliding sleeves (16) are movably connected to the bearing plate (11).

4. The car seat backrest frame according to claim 1, characterized in that: An integrated plate (19) is symmetrically installed at the top of the support column (7), and the integrated plate (19) is fixedly connected to the support column (7).

5. The car seat backrest frame according to claim 4, characterized in that: Each of the integrated boards (19) is equipped with a servo motor (20) at its bottom end. The motor shaft of each servo motor (20) extends to the top of the integrated board (19) and is equipped with a rotating arm (21).

6. The car seat backrest frame according to claim 5, characterized in that: One end of each rotating arm (21) is provided with a connecting arm (22), and the connecting arm (22) is movably connected to the rotating arm (21).

7. A car seat backrest frame according to claim 6, characterized in that: Each of the connecting arms (22) has a reciprocating rod (17) movably mounted at the end away from the rotating arm (21), and each of the integrated plates (19) has a limit block (18) mounted on its top end, with the reciprocating rod (17) and the limit block (18) slidably connected.

8. The car seat backrest frame according to claim 1, characterized in that: A massage frame (12) is provided on one side of the support column (7), and the reciprocating rod (17) is connected to the massage frame (12).

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