Seat backrest shielding structure

Abstract

The utility model discloses a seat backrest shielding structure which comprises a backrest framework and a cushion framework, the lower end of the backrest framework is rotatably connected with the rear end of the cushion framework through a sitting and leaning connecting rod, an avoiding groove is formed in the backrest framework in the moving direction of the sitting and leaning connecting rod, the seat backrest shielding structure is characterized by further comprising a shielding body, and the shielding body is arranged on the front side of the avoiding groove. The shielding main body is fixed on the backrest framework, a receding hole is formed in the position, corresponding to the receding groove, of the shielding main body, the receding hole is shielded by a shielding piece, the upper end of the shielding piece is rotationally connected to the back face of the shielding main body, a reset spring is arranged between the shielding piece and the shielding main body, and the reset spring has pre-tightening force for driving the shielding piece to overturn backwards. And the shielding sheet is propped against the back surface of the shielding main body under the action of the pre-tightening force. According to the utility model, dynamic shielding and automatic resetting functions are integrated, and a connecting mechanism of a sitting and leaning connecting rod in the seat is effectively hidden.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a seat back shielding structure. Background Technology

[0002] Current car seat backrest and seat cushion frames are typically adjusted for angle via a linkage mechanism. When the backrest is folded forward, a clearance groove is formed at the connection between its lower end and the seat cushion frame to accommodate moving parts. However, this clearance groove exposes the internal metal frame and linkage structure under normal use, affecting the overall appearance of the seat and posing a risk of pinching the user's clothing or skin. Some existing designs attempt to cover the clearance groove with fixed covers or soft materials, but these lack dynamic adaptability. For example, fixed covers may interfere with linkage movement, while soft materials are prone to damage from frequent friction and are difficult to align flush with the foamed surface of the backrest, resulting in localized depressions or bulges and reducing seating comfort. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a seat back shielding structure that integrates dynamic shielding and automatic reset functions.

[0004] To achieve the above objectives, this utility model proposes a seat backrest shielding structure, including a backrest frame and a seat cushion frame. The lower end of the backrest frame is rotatably connected to the rear end of the seat cushion frame via a seat-back linkage. An avoidance groove is provided on the backrest frame along the movement direction of the seat-back linkage. The structure also includes a shielding body, which is disposed in front of the avoidance groove and fixed to the backrest frame. An avoidance hole is provided on the shielding body at a position corresponding to the avoidance groove. The avoidance hole is blocked by a shielding plate. The upper end of the shielding plate is rotatably connected to the back of the shielding body, and a return spring is provided between the shielding plate and the shielding body. The return spring has a pre-tightening force that drives the shielding plate to flip backward. Under the action of the pre-tightening force, the shielding plate abuts against the back of the shielding body.

[0005] In the above scheme: a rotating shaft is fixedly mounted on the back of the shielding body, and a locking bolt is fixedly mounted on the back of the shield. The locking bolt and the rotating shaft are connected through an intermediate component. The locking bolt is movably sleeved on the lower end of the intermediate component, and the rotating shaft is movably sleeved on the upper end of the intermediate component. The design of the intermediate component may allow the shield to rotate more smoothly while maintaining the stability of the structure.

[0006] In the above solution: the intermediate component is a hollow structure, and the reset spring is a leaf spring. The leaf spring is arranged inside the intermediate component and sleeved on the rotating shaft. The inner end of the leaf spring is fixed to the rotating shaft, and the outer end of the leaf spring is hooked onto the locking bolt. This structure is beneficial to improving the reset efficiency of the baffle, and the hollow structure may reduce weight or facilitate installation.

[0007] In the above solution: Supporting steel wires are welded to both sides of the clearance groove on the front of the backrest frame, and mounting iron plates are welded to both supporting steel wires. Support ears are provided on the back of the shielding body corresponding to the two mounting iron plates, and the support ears are fixed to the corresponding mounting iron plates with screws. Installation is convenient and the structure is stable.

[0008] In the above solution: the backrest frame is covered with backrest foam, and the backrest foam has a cutout at the position corresponding to the shielding body. The shielding body is installed in the cutout and is flush with the surface of the backrest foam. The shielding body is flush with the surface of the backrest foam, visually integrating completely into the seat design and further enhancing the aesthetics.

[0009] In the above solution: the lower end of the backrest frame is fixed to the vehicle floor via a floor bracket; the backrest frame and the floor bracket are rotatably connected, while the floor bracket and the vehicle floor are fixedly connected. The backrest frame is easy to flip.

[0010] In the above scheme: a rubber sleeve is fitted on the shield, the width of the rubber sleeve is greater than the width of the clearance hole, and the shield abuts against the back of the shielding body through the rubber sleeve. The rubber sleeve serves both as abutment and as a noise reduction and vibration damping function.

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

[0012] 1. By covering the avoidance groove area with a concealed main body and a cover plate, the internal connecting mechanism of the seat is effectively hidden, resulting in a cleaner and more uniform appearance. 2. The cover plate automatically closes under the pre-tension of the return spring, maintaining the avoidance groove's concealment without manual operation. When the backrest flips forward, the cover plate automatically opens with the movement of the linkage, forming an intelligent avoidance mechanism synchronized with the movement trajectory, balancing functionality and convenience. 3. The concealed structure prevents foreign objects from entering the avoidance groove and avoids accidental contact with the moving linkage by the user's limbs, reducing the risk of pinching injuries and improving the seat's safety. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a diagram showing the backrest frame when it is not flipped forward.

[0015] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0016] Figure 3 This is a schematic diagram of the backrest frame after it has been flipped forward.

[0017] Figure 4 This is a schematic diagram of the assembly of the mask and the main body of the mask.

[0018] Figure 5 yes Figure 4 An explosion diagram. Detailed Implementation

[0019] like Figure 1 As shown in Figure 5, a seat backrest shielding structure mainly consists of a backrest frame 1, a seat cushion frame 2, and a shielding body 5. The lower end of the backrest frame 1 is rotatably connected to the rear end of the seat cushion frame 2 via a seat-back linkage 3. An avoidance groove 4 is provided on the backrest frame 1 along the movement direction of the seat-back linkage 3 (the arrangement of the seat-back linkage is prior art).

[0020] The shielding body 5 is positioned in front of the clearance groove 4 and is fixed to the backrest frame 1. A clearance hole 51 is provided on the shielding body 5 at the position corresponding to the clearance groove 4. The clearance hole 51 is blocked by a shielding plate 6. The upper end of the shielding plate 6 is rotatably connected to the back of the shielding body 5, and a return spring 7 is provided between the shielding body 5 and the shielding body 5. The return spring 7 has a pre-tightening force that drives the shielding plate 6 to flip backward. Under the action of the pre-tightening force, the shielding plate 6 is pressed against the back of the shielding body 5.

[0021] Ideally, a pivot 8 is fixed to the back of the shielding body 5, and a locking bolt 9 is fixed to the back of the shield 6. The locking bolt 9 and the pivot 8 are connected by an intermediate member 10. The locking bolt 9 is movably sleeved on the lower end of the intermediate member 10, and the pivot 8 is movably sleeved on the upper end of the intermediate member 10. The design of the intermediate member 10 may allow the shield 6 to rotate more smoothly while maintaining the stability of the structure.

[0022] Ideally, the intermediate component 10 should be a hollow structure, and the return spring 7 should be a leaf spring. The leaf spring should be arranged inside the intermediate component 10 and sleeved on the rotating shaft 8. The inner end of the leaf spring should be fixed to the rotating shaft 8, and the outer end of the leaf spring should be hooked onto the locking bolt 9. This structure is beneficial to improving the return efficiency of the shield 6, and the hollow structure may reduce weight or facilitate installation.

[0023] Ideally, support wires 11 are welded to both sides of the backrest frame 1 corresponding to the avoidance groove 4, and mounting iron plates 12 are welded to both support wires 11. The back of the shielding body 5 is provided with lugs 52 corresponding to the two mounting iron plates 12. The lugs 52 are fixed to the corresponding mounting iron plates 12 by screws, which makes installation convenient and the structure stable.

[0024] Ideally, the backrest frame 11 is covered with backrest foam, and the backrest foam has a cutout at the position corresponding to the shielding body 5. The shielding body 5 is installed in the cutout and is flush with the surface of the backrest foam. The shielding body 5 is flush with the surface of the backrest foam, visually integrating completely into the seat design and further enhancing the aesthetics.

[0025] Ideally, the lower end of the backrest frame 11 is fixed to the vehicle floor via a floor bracket 13. The backrest frame 11 and the floor bracket 13 are rotatably connected, while the floor bracket 13 and the vehicle floor are fixedly connected. The backrest frame 11 is easy to flip.

[0026] Ideally, a rubber sleeve 14 is fitted on the shield 6, and the width of the rubber sleeve is greater than the width of the clearance hole 51. The shield 6 abuts against the back of the shielding body 5 through the rubber sleeve 14. The rubber sleeve 14 serves both as abutment and as a noise reduction and vibration damping function.

Claims

1. A seat back shielding structure comprising a backrest frame (1) and a cushion frame (2), the lower end of the backrest frame (1) being pivotally connected to the rear end of the cushion frame (2) through a seat-reclining link (3), and a clearance slot (4) being formed in the backrest frame (1) along the movement direction of the seat-reclining link (3), characterized in that: The utility model also includes a shielding body (5) arranged in front of the escape groove (4), which is fixed to the backrest framework (1), and an escape hole (51) is arranged on the shielding body (5) at a position corresponding to the escape groove (4), the escape hole (51) is shielded by a shielding piece (6), the upper end of the shielding piece (6) is rotatably connected to the back of the shielding body (5), and a return spring (7) is arranged between the shielding piece (6) and the shielding body (5), the return spring (7) has a pre-tightening force for driving the shielding piece (6) to flip back, and the shielding piece (6) is abutted against the back of the shielding body (5) under the action of the pre-tightening force.

2. The seat back shielding structure according to claim 1, characterized by: The back of the shielding body (5) is fixedly provided with a rotating shaft (8), the back of the shielding piece (6) is fixedly provided with a lock bolt (9), the lock bolt (9) is connected with the rotating shaft (8) through an intermediate piece (10), the lock bolt (9) is movably sleeved on the lower end of the intermediate piece (10), and the rotating shaft (8) is movably sleeved on the upper end of the intermediate piece (10).

3. The seat back shielding structure according to claim 2, characterized by: The intermediate piece (10) is a hollow structure, the return spring (7) is a leaf spring, the leaf spring is arranged in the intermediate piece (10) and sleeved on the rotating shaft (8), the inner end of the leaf spring is fixed to the rotating shaft (8), and the outer end of the leaf spring is hooked on the lock bolt (9).

4. The seat back shielding structure according to claim 1, characterized by: The front of the backrest framework (1) is welded with a support steel wire (11) at positions corresponding to the two sides of the escape groove (4), the support steel wire (11) is welded with a mounting iron sheet (12), the back of the shielding body (5) is provided with a lug (52) corresponding to the two mounting iron sheets (12), and the lug (52) and the corresponding mounting iron sheet (12) are fixed through screws.

5. The seat back shielding structure according to claim 1, characterized by: The backrest framework (11) is coated with backrest foam, the backrest foam is provided with a hollow part corresponding to the position of the shielding body (5), the shielding body (5) is mounted in the hollow part and flush with the surface of the backrest foam.

6. The seat back shielding structure according to claim 1, characterized by: The lower end of the backrest framework (11) is fixed to the vehicle body floor through a floor stand (13), the backrest framework (11) and the floor stand (13) are rotatably connected, and the floor stand (13) and the vehicle body floor are fixedly connected.

7. The seat back shielding structure according to claim 1, characterized by: The shielding piece (6) is sleeved with a rubber sleeve (14), the width of the rubber sleeve is greater than the width of the escape hole (51), and the shielding piece (6) is abutted against the back of the shielding body (5) through the rubber sleeve (14).

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