Turnover headrest

Abstract

The embodiment of the utility model discloses a turnover headrest which comprises a front shell and a rear shell, the front shell is connected with the rear shell, the lower end of the rear shell is provided with a steel pipe passing groove, the tops of steel pipes penetrate through the steel pipe passing groove, the tops of the two steel pipes are connected with a rotating shaft, an anti-rotating mechanism is arranged in the middle of the front end of the rotating shaft, and a sliding block installation sliding groove is formed in the middle of the front end of the rear shell. A sliding block is installed in the sliding block installation sliding groove, the rear shell is provided with a limiting groove corresponding to the anti-rotation mechanism, the top of the sliding block is connected with the wire harness, the wire harness penetrates through the wire harness limiting blocks and penetrates through one steel pipe, a torsional spring is installed on the rotating shaft, one end of the torsional spring is fixed to the anti-rotation mechanism, and the other end of the torsional spring is located at the bottom of the rear shell. The structure is greatly simplified, when the headrest needs to be turned over, only the wire harness needs to be pulled, when the headrest does not need to be turned over, only the front shell needs to be manually pushed, and when the headrest is seriously impacted on the front face or the back face, automatic unlocking is avoided.

Description

Technical Field

[0001] The utility model relates to a headrest for a car seat, in particular to a flip headrest. Background Art

[0002] The headrest of a car seat is a device provided to improve the comfort and safety of the car. Ordinary car seat headrests can only provide the function of adjusting the height. Such seats will not only hinder the vision of rear passengers, making them feel depressed, but also block the driver's sight of the rear vehicle. In addition, the current designs of flippable car seat headrests are very similar in structure, all of which are composed of a headrest frame, a flippable shell core component and an unlocking mechanism. However, they all have the risk of automatically unlocking when the car is hit by a serious front or rear impact, which cannot meet the safety requirements of the passengers. In addition, the existing shell flip headrest structures are relatively complex and the cost is relatively high. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a flip headrest to solve the defects of the headrest in the prior art.

[0004] The utility model embodiment discloses a flip headrest, comprising a front shell and a rear shell, the front shell and the rear shell are connected, the lower end of the rear shell is provided with a steel pipe passing groove, the top of the steel pipe passes through the steel pipe passing groove, the tops of the two steel pipes are connected with a rotating shaft, the middle of the front end of the rotating shaft is provided with an anti-rotation mechanism, the middle of the front end of the rear shell is provided with a slider installation slot, a slider is installed in the slider installation slot, the rear shell is provided with a limiting slot corresponding to the anti-rotation mechanism, the top of the slider is connected with a wiring harness, the wiring harness passes through a plurality of wiring harness limiting blocks, the wiring harness passes through one of the steel pipes, a torsion spring is installed on the rotating shaft, one end of the torsion spring is fixed on the anti-rotation mechanism, and the other end of the torsion spring is located at the bottom of the rear shell.

[0005] Furthermore, a vertically arranged wire harness limit block is provided above the slider installation slot, a horizontally arranged wire harness limit block is provided on the top side of the rear shell, and a return spring is provided between the wire harness limit block located above the slider installation slot and the slider.

[0006] Furthermore, a slide groove is provided in the middle of the rear end of the slide block, and a slide rail corresponding to the slide groove is provided on the rear shell.

[0007] Furthermore, a protective plate is provided at the bottom of the rear shell, and the protective plate includes two arc-shaped plates, the upper ends of the two arc-shaped plates are respectively connected to the connecting plate 1, and the lower ends of the two arc-shaped plates are connected to the connecting plate 2. The two connecting plates 1 and 2 are both connected to the rear shell, and the arc-shaped plates are facing the rotating shaft.

[0008] Furthermore, the anti-rotation mechanism is an arc-shaped structure, and a torsion spring installation groove is provided below the anti-rotation mechanism.

[0009] Furthermore, the limiting groove is provided with an inclined surface facing the anti-rotation mechanism, and the inclined surface is provided with felt.

[0010] Furthermore, the steel pipe is a bent structure, and the steel pipe includes steel pipe one and steel pipe two. Steel pipe one is located above steel pipe two, and a wire harness inlet is provided at the upper end of steel pipe one.

[0011] Compared with the traditional flip headrest, the structure of the embodiment of the utility model is greatly simplified. It only needs to pull the wire harness and the slider will move accordingly. The torsion spring drives the rear shell and the front shell to flip around the rotating shaft to realize the flipping of the headrest. When flipping is not needed, it is only necessary to manually push the front shell to make the rear shell and the front shell rotate around the rotating shaft in opposite directions. When the slider slides to the position, the slider and the anti-rotation mechanism are locked, and it will not be automatically unlocked when subjected to severe frontal or rear impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0013] Figure 2 This is a schematic diagram of another viewing angle of an embodiment of the utility model.

[0014] Figure 3 This is a schematic diagram of an embodiment of the utility model after removing the front shell.

[0015] Figure 4 It is a partial schematic diagram of an embodiment of the utility model.

[0016] Figure 5 This is a schematic diagram of a rear shell according to an embodiment of the present utility model.

[0017] Figure 6 This is a schematic diagram of a slider according to an embodiment of the utility model.

[0018] Figure 7 This is a schematic diagram of a protective plate according to an embodiment of the present utility model.

[0019] Figure 8 Schematic diagram of an anti-rotation mechanism according to an embodiment of the utility model.

[0020] Fig. 9 This is a schematic diagram of a steel pipe according to an embodiment of the utility model. DETAILED DESCRIPTION

[0021] 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 of 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.

[0022] As shown in the figure, the embodiment of the utility model discloses a flip headrest, including a front shell 1 and a rear shell 2, the front shell 1 and the rear shell 2 are connected, the lower end of the rear shell 2 is provided with a steel pipe passing groove 201, the top of the steel pipe 3 passes through the steel pipe passing groove 201, the tops of the two steel pipes 3 are connected with a rotating shaft 4, the middle of the front end of the rotating shaft 4 is provided with an anti-rotation mechanism 5, the middle of the front end of the rear shell 2 is provided with a slider mounting groove 202, a slider 6 is installed in the slider mounting groove 202, the rear shell 2 is provided with a limiting groove 203 corresponding to the anti-rotation mechanism, the top of the slider 6 is connected with a wiring harness 7, the wiring harness 7 passes through a plurality of wiring harness limiting blocks 8, the wiring harness 7 passes through one of the steel pipes 3, a torsion spring 9 is installed on the rotating shaft 4, one end of the torsion spring 9 is fixed on the anti-rotation mechanism 5, and the other end of the torsion spring 9 is located at the bottom of the rear shell 2. When the headrest needs to be flipped, the wire harness 7 is pulled. The wire harness moves, driving the slider 6 to move upward. When the slider 6 is separated from the anti-rotation mechanism 5 as a whole, the anti-rotation mechanism 5 cannot exert pressure on the rear shell 2. At this time, the torsion spring 9 drives the rear shell 2 to flip around the rotation axis 4. When the anti-rotation mechanism 5 fits the limit groove 203, the rear shell 2 stops flipping. When the headrest does not need to be flipped, it is only necessary to manually push the front shell 1 to rotate in the opposite direction.

[0023] In one embodiment of the utility model, a vertically arranged harness stopper 8 is provided above the slider installation slot 202, a horizontally arranged harness stopper 8 is provided on one side of the top of the rear shell 2, and a return spring 10 is provided between the harness stopper located above the slider installation slot and the slider. When the headrest is in a flipped state, the return spring 10 is compressed. The return spring 10 is conducive to pushing the slider back to the slider installation slot 202.

[0024] In one embodiment of the present invention, a slide groove 61 is provided in the middle of the rear end of the slider 6, and a slide rail 204 corresponding to the slide groove is provided in the rear housing 2. The design of the slide rail 204 and the slide groove 61 ensures that the slider 6 moves smoothly.

[0025] In one embodiment of the utility model, a protective plate 11 is provided at the bottom of the rear housing 2, and the protective plate includes two arc-shaped plates 12, the upper ends of the two arc-shaped plates are respectively connected to the connecting plate 1 13, and the lower ends of the two arc-shaped plates are connected to the connecting plate 2 14, the two connecting plates 1 13 and the connecting plate 2 14 are both connected to the rear housing, and the arc-shaped plate 12 faces the rotating shaft 4. The design of the protective plate 11 plays a role in protecting the rear housing 2.

[0026] In an embodiment of the present invention, the anti-rotation mechanism 5 is an arc-shaped structure, and a torsion spring installation groove 51 is provided below the anti-rotation mechanism.

[0027] In one embodiment of the utility model, the limiting groove is provided with an inclined surface facing the anti-rotation mechanism, and the inclined surface is provided with a felt 15. The felt 15 plays a buffering role.

[0028] In an embodiment of the present invention, the steel pipe 3 is a bent structure, and the steel pipe includes a steel pipe 1 31 and a steel pipe 2 32 . The steel pipe 1 31 is located above the steel pipe 2 32 , and a wiring harness inlet 311 is provided at the upper end of the steel pipe 1.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flip headrest, comprising a front shell and a rear shell, characterized in that: The front shell and the rear shell are connected, and a steel pipe passing groove is provided at the lower end of the rear shell, and the top of the steel pipe passes through the steel pipe passing groove. A rotating shaft is connected to the tops of the two steel pipes, and an anti-rotation mechanism is provided in the middle of the front end of the rotating shaft. A slider mounting groove is provided in the middle of the front end of the rear shell, and a slider is installed in the slider mounting groove. The rear shell is provided with a limiting groove corresponding to the anti-rotation mechanism, and the top of the slider is connected to the wiring harness, and the wiring harness passes through several wiring harness limiting blocks, and the wiring harness passes through one of the steel pipes. A torsion spring is installed on the rotating shaft, one end of the torsion spring is fixed on the anti-rotation mechanism, and the other end of the torsion spring is located at the bottom of the rear shell. The anti-rotation mechanism is an arc structure, and a torsion spring mounting groove is provided below the anti-rotation mechanism.

2. A flip headrest as claimed in claim 1, characterized in that: A vertically arranged harness limit block is provided above the slider installation slot, a horizontally arranged harness limit block is provided on the top side of the rear shell, and a return spring is provided between the harness limit block located above the slider installation slot and the slider.

3. A flip headrest as claimed in claim 1, characterized in that: A slide groove is arranged in the middle of the rear end of the slide block, and a slide rail corresponding to the slide groove is arranged on the rear shell.

4. A flip headrest as claimed in claim 1, characterized in that: A protective plate is provided at the bottom of the rear shell, which includes two arc-shaped plates. The upper ends of the two arc-shaped plates are respectively connected to the connecting plate 1, and the lower ends of the two arc-shaped plates are connected to the connecting plate 2. The two connecting plates 1 and 2 are both connected to the rear shell, and the arc-shaped plates are facing the rotating shaft.

5. The flip headrest according to claim 1, characterized in that: The limiting groove is provided with an inclined surface which is directly opposite to the anti-rotation mechanism, and the inclined surface is provided with felt.

6. The flip headrest according to claim 1, characterized in that: The steel pipe is a bent structure, and comprises a steel pipe 1 and a steel pipe 2. The steel pipe 1 is located above the steel pipe 2, and a wiring harness inlet is arranged at the upper end of the steel pipe 1.

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