Shared car headrest with protective sleeve box

Abstract

The utility model provides a shared car headrest with protective sleeve box relates to car headrest technical field, include: headrest body, protective sleeve box is set in the other side of headrest body leans on the face, be equipped with first roll and second roll in protective sleeve box, the second roll is built -in drive its rotation scroll spring, first limit piece and second limit piece, first limit piece with second limit piece symmetry sets up in the both sides of headrest body. The utility model has the advantages of: through with headrest body, protective sleeve box, first limit piece, second limit piece and film roll integrated setting, make film roll under the drive of torsion spring can be automatically from first roll and by the second roll winding after headrest leans on the face, realize disposable coverage and quick replacement, guarantee that each user's head is contacted with clean film under the shared scene, avoid cross -contamination.

Description

Technical Field

[0001] This utility model relates to the field of automotive headrest technology, and in particular to a shared automotive headrest with a protective cover. Background Technology

[0002] Car headrests are an important component of vehicle seats, combining driving comfort features with safety protection functions. They are primarily used to alleviate neck fatigue and provide impact cushioning protection. Their core structure includes a support structure and cushioning materials.

[0003] In recent years, the shared mobility model has expanded rapidly. Headrests have become one of the areas most frequently exposed to scalp skin, sweat, sebum, hairspray, and dandruff. However, operators still follow the traditional private car approach, designing headrests as non-removable and non-washable semi-enclosed components. They rely solely on periodic interior spray disinfection or simple wiping to maintain surface cleanliness, failing to penetrate deep into the buffer layer. This leads to the continuous accumulation of pollutants and persistent hygiene blind spots. To address this issue, a shared car headrest with a protective cover is proposed. Utility Model Content

[0004] In view of this, embodiments of the present invention provide a shared car headrest with a protective cover to solve the technical problem of hygiene hazards existing in shared car headrests.

[0005] An embodiment of this utility model provides a shared car headrest with a protective sleeve, comprising: headrest body; A protective sleeve is provided on the other side of the headrest body's backing surface. The protective sleeve contains a first roller and a second roller, and the second roller has a built-in spiral spring that drives its rotation. The first limiting member and the second limiting member are symmetrically arranged on both sides of the headrest body, and the first limiting member and the second limiting member are respectively provided with a first positioning structure and a second positioning structure. The film roll passes through the first and second limiting members and is attached and tensioned to the backing surface of the headrest body, isolating the user's head from contact with the headrest body. The two ends of the film roll are respectively wound around the first and second rollers. The second roller can be wound up by the torque of the spiral spring, so that the film roll is replaced along the surface of the headrest body. The first and second positioning structures are used to limit the position of the film roll and prevent the film roll from naturally unwinding under normal conditions.

[0006] Furthermore, the first positioning structure includes two rotating shafts, two clamping rollers and two friction plates. Each clamping roller is disposed outside a corresponding rotating shaft. The two rotating shafts are rotatably disposed in the inner cavity of the first limiting member through bearings, and the two clamping rollers are configured to roll against each other. The two friction pads are respectively disposed at the upper ends of the two rotating shafts. The upper end of the first limiting member is provided with a first end cap. Both friction pads abut against the first end cap. Through the rotational resistance of the friction pads, the rotation of the two clamping rollers can be hindered, forcing the film roll to slowly pass through the first limiting member.

[0007] Furthermore, the second positioning structure includes two fixing blocks, two clamping plates, and a pressure block. The two fixing blocks are symmetrically fixed in the inner cavity of the second limiting member at an interval from the axis of the second limiting member. Each clamping plate is movably disposed between the two fixing blocks by means of an elastic member. By pushing the clamping plate with the elastic member, the two clamping plates can clamp the film roll, thereby preventing the film roll from naturally winding up. Both clamps are provided with folding plates at their upper ends. The two folding plates are arranged in a V-shape. The pressure block corresponds to the gap between the two folding plates. By pressing down the pressure block, the two folding plates can be moved away from each other.

[0008] Furthermore, a second end cap is slidably mounted on the upper end of the second limiting member, and the pressure block is disposed below the second end cap and corresponds to the upper and lower positions of the two folding plates.

[0009] Furthermore, each of the clamping plates is provided with a guide rod on one side facing a fixed block, the guide rod passing through and slidably connected to a fixed block.

[0010] Furthermore, the protective sleeve is detachably mounted on the headrest body, and the interior of the protective sleeve has two receiving cavities, with the first roller and the second roller respectively located in the two receiving cavities. The front of the protective sleeve is detachably provided with a snap-on cover.

[0011] Furthermore, each side of the protective sleeve is provided with a movable groove that communicates with the two accommodating cavities respectively. The first limiting member and the second limiting member are provided with through grooves at the front and back. The film roll passes through one of the movable grooves out of the protective sleeve, passes through the two through grooves, and returns to the protective sleeve through the other movable groove.

[0012] Furthermore, the widths of the through groove and the movable groove correspond to the height of the headrest body.

[0013] Furthermore, the pressure block is conical, and its two sides are respectively attached to the two folding plates.

[0014] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The shared car headrest with protective sleeve of this utility model integrates the headrest body, protective sleeve, first limiting member, second limiting member and film roll, so that the film roll can be automatically unwound from the first roller under the drive of the torsion spring and wound up by the second roller after passing the headrest backing surface, realizing one-time coverage and quick replacement, ensuring that the head of each user is in contact with the clean film in the shared scenario, avoiding cross-contamination; the first positioning structure uses the rotational resistance generated by the clamping roller and friction plate to make the film pass through at a uniform speed and prevent natural slippage, and the second positioning structure uses the elastic clamping and conical pressure block for one-button release, which can not only ensure that the film roll can pass through at a uniform speed under normal conditions, but also ensure that the film roll can be wound up by the second roller after passing through the first roller and after passing through the headrest backing surface. The system locks the film roll position in a fixed state and instantly releases resistance during replacement, making operation labor-saving and structurally reliable. The protective sleeve features a detachable snap-on cover and a double-sided movable groove design, allowing for tool-free installation and maintenance of the roll and film. The width of the through groove and movable groove matches the headrest height, ensuring the film remains taut and adhered throughout, without wrinkles or shifting, significantly improving wearing comfort and aesthetics. The overall solution has fewer parts, a smaller size, and lower cost. Driven entirely by mechanical elasticity without electricity, it is suitable for large-scale deployment in shared vehicles. It can update the headrest surface insulation layer within 3 seconds, reducing the frequency of cleaning and maintenance costs for operators, extending the lifespan of the headrest, and enhancing user safety and satisfaction. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the shared car headrest with a protective cover according to this utility model; Figure 2 This is another perspective structural diagram of the shared car headrest with protective cover of this utility model; Figure 3 This is a schematic diagram of the first and second limiting components of the shared car headrest with a protective cover according to this utility model. Figure 4 This is a schematic diagram of the second limiting component of the shared car headrest with a protective cover according to this utility model.

[0016] In the diagram: 1. Headrest body; 2. Protective sleeve; 201. Receiving cavity; 202. Fastening cover; 203. Movable groove; 3. First limiting component; 4. Second limiting component; 5. Film roll; 6. First roller; 7. Second roller; 8. Through groove; 9. First end cap; 10. Rotating shaft; 11. Clamping roller; 12. Friction plate; 13. Fixing block; 14. Clamping plate; 15. Folding plate; 16. Second end cap; 17. Pressure block; 18. Guide rod; 19. Elastic component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0018] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0019] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0021] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please refer to Figure 1 The present invention provides a shared car headrest with a protective cover, which mainly includes a headrest body 1, a protective cover 2, a first limiting member 3, a second limiting member 4, and a film roll 5.

[0023] The headrest body 1 is a conventional automotive headrest structure, with its backrest surface designed to support the passenger's head. The protective cover 2 is located on the other side of the backrest surface of the headrest body 1 and can be detachably connected via clips or bolts to facilitate maintenance and replacement of internal components.

[0024] The protective sleeve 2 has two accommodating cavities 201 inside, which are used to house the first roll 6 and the second roll 7, respectively. The second roll 7 has a built-in spiral spring that can provide a stable winding force, which can make the second roll 7 rotate and wind up, forcing the film roll 5 to be unwound from the surface of the first roll 6 and wound up outside the second roll 7.

[0025] The protective case 2 has a snap-on cover 202 on the front, which can be connected by a snap or hinge for easy opening and closing.

[0026] It should be noted that the first limiting member 3 and the second limiting member 4 are symmetrically arranged on both sides of the headrest body 1 and can be fixed by bolts or buckles. The front and rear sides of the first limiting member 3 and the second limiting member 4 are provided with through grooves 8 for the film roll 5 to pass through and be positioned.

[0027] The film roll 5 consists of one or more layers of disposable film, possessing a certain degree of toughness and transparency. One end of the film roll 5 is wound around the first roller 6, and the other end passes sequentially through the through groove 8 of the first limiting member 3, the backing surface of the headrest body 1, and the through groove 8 of the second limiting member 4, finally winding around the second roller 7. Under the action of the spiral spring, the film roll 5 can maintain a taut state and adhere to the backing surface of the headrest body 1.

[0028] Reference Figure 2 and Figure 3 The first positioning structure is set inside the first limiting member 3, including two rotating shafts 10, two clamping rollers 11 and two friction plates 12. The rotating shafts 10 are rotatably set in the inner cavity of the first limiting member 3 through bearings, the clamping rollers 11 are fixed outside the rotating shafts 10, the two clamping rollers 11 abut against each other, and the film roll 5 passes through the two clamping rollers 11.

[0029] The friction plate 12 is fixed to the upper end of the rotating shaft 10, and the upper end of the first limiting member 3 is provided with a first end cap 9, with the friction plate 12 abutting against the first end cap 9. When the film roll 5 moves, the clamping roller 11 rotates accordingly, and the friction between the friction plate 12 and the first end cap 9 hinders the rotation of the clamping roller 11, thereby allowing the film roll 5 to pass slowly and preventing it from unwinding too quickly.

[0030] Reference Figure 3 and Figure 4 The second positioning structure is set inside the second limiting member 4, including two fixing blocks 13, two clamping plates 14 and a pressure block 17. The fixing blocks 13 are symmetrically fixed in the inner cavity of the second limiting member 4, and the clamping plates 14 are movably set between the fixing blocks 13 by means of elastic members 19 (such as springs).

[0031] Under the action of the elastic element 19, the two clamping plates 14 clamp the film roll 5, preventing it from winding naturally. The upper end of the clamping plate 14 is provided with a folding plate 15, and the two folding plates 15 are arranged in a V shape. The pressure block 17 is conical and is located below the second end cover 16, corresponding to the gap between the two folding plates 15.

[0032] When the film roll 5 needs to be replaced, press down the second end cover 16, the pressure block 17 moves down, squeezing the two folding plates 15, so that the clamping plates 14 move away from each other, releasing the film roll 5. At this time, under the action of the spiral spring, the film roll 5 is unwound from the first roller 6, passes the resting surface of the headrest body 1, and is wound onto the second roller 7, completing the replacement. During the natural unwinding and winding process of the film roll 5, the first positioning structure decelerates the speed.

[0033] In an optional embodiment, the protective sleeve 2 has movable slots 203 on both sides, which communicate with the receiving cavity 201. The film roll 5 passes through the movable slots 203 out of the protective sleeve 2, through the through slot 8, and then through another movable slot 203 back into the protective sleeve 2.

[0034] The width of the through slot 8 and the movable slot 203 is matched with the height of the headrest body 1 to ensure that the film roll 5 can completely cover the backing surface of the headrest body 1, while avoiding the film roll 5 from shifting or getting stuck during movement.

[0035] In the context of car sharing, after each passenger has used the vehicle, the operator or the next passenger can press the second end cap 16 to trigger the film roll 5 replacement mechanism. The used film is wound onto the second roll 7, and a clean film is placed over the headrest body 1 to ensure hygiene.

[0036] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0037] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shared car headrest with a protective sleeve, characterized in that, include: Headrest body (1); A protective sleeve (2) is provided on the other side of the headrest body (1) and a first roller (6) and a second roller (7) are provided inside the protective sleeve (2). The second roller (7) has a spiral spring built in it to drive its rotation. The first limiting member (3) and the second limiting member (4) are symmetrically arranged on both sides of the headrest body (1). The first limiting member (3) and the second limiting member (4) are respectively provided with a first positioning structure and a second positioning structure. And a film roll (5), which passes through the first limiting member (3) and the second limiting member (4) and is attached and tensioned to the backing surface of the headrest body (1) to isolate the user's head from contact with the headrest body (1). The two ends of the film roll (5) are respectively wound around the first roller (6) and the second roller (7). The second roller (7) can be wound up by the torque of the spiral spring, so that the film roll (5) is replaced as it passes through the surface of the headrest body (1). The first positioning structure and the second positioning structure are used to limit the position of the film roll (5) to prevent the film roll (5) from naturally winding and unwinding under normal conditions.

2. The shared car headrest with a protective sleeve as described in claim 1, characterized in that: The first positioning structure includes two rotating shafts (10), two clamping rollers (11) and two friction plates (12). Each clamping roller (11) is disposed outside a corresponding rotating shaft (10). The two rotating shafts (10) are rotatably disposed in the inner cavity of the first limiting member (3) through bearings, and the two clamping rollers (11) are configured to roll against each other. The two friction plates (12) are respectively disposed on the upper ends of the two rotating shafts (10). The upper end of the first limiting member (3) is provided with a first end cap (9). The two friction plates (12) abut against the first end cap (9). Through the rotational resistance of the friction plates (12), the two clamping rollers (11) can be prevented from rotating, forcing the film roll (5) to slowly pass through the first limiting member (3).

3. The shared car headrest with a protective sleeve as described in claim 1, characterized in that: The second positioning structure includes two fixing blocks (13), two clamping plates (14), and a pressure block (17). The two fixing blocks (13) are symmetrically fixed in the inner cavity of the second limiting member (4) at an axial distance from the second limiting member (4). Each clamping plate (14) is movably disposed between the two fixing blocks (13) through an elastic member (19). By pushing the clamping plate (14) through the elastic member (19), the two clamping plates (14) can clamp the film roll (5), thereby preventing the film roll (5) from naturally winding up. Both clamps (14) are provided with folding plates (15) at their upper ends. The two folding plates (15) are arranged in a V-shape. The pressure block (17) corresponds to the gap between the two folding plates (15). By pressing down the pressure block (17), the two folding plates (15) can be moved away from each other.

4. The shared car headrest with a protective sleeve as described in claim 3, characterized in that: The second end cap (16) is slidably installed on the upper end of the second limiting member (4), and the pressure block (17) is located below the second end cap (16) and corresponds to the upper and lower positions of the two folding plates (15).

5. The shared car headrest with a protective case as described in claim 3, characterized in that: Each of the clamps (14) is provided with a guide rod (18) on one side facing a fixed block (13), and the guide rod (18) passes through and is slidably connected to a fixed block (13).

6. The shared car headrest with a protective sleeve as described in claim 1, characterized in that: The protective sleeve (2) is detachably mounted on the headrest body (1), and the protective sleeve (2) has two accommodating cavities (201) inside. The first roller (6) and the second roller (7) are respectively located in the two accommodating cavities (201). The front of the protective sleeve (2) is detachably provided with a snap-fit ​​cover (202).

7. The shared car headrest with a protective sleeve as described in claim 6, characterized in that: The protective sleeve (2) has movable slots (203) on both sides that are connected to the two accommodating cavities (201). The first limiting member (3) and the second limiting member (4) have through slots (8) at the front and back. The film roll (5) passes through one of the movable slots (203) and exits the protective sleeve (2), passes through the two through slots (8) continuously, and returns to the protective sleeve (2) through the other movable slot (203).

8. The shared car headrest with a protective sleeve as described in claim 7, characterized in that: The widths of the through groove (8) and the movable groove (203) correspond to the height of the headrest body (1).

9. The shared car headrest with a protective sleeve as described in claim 3, characterized in that: The pressure block (17) is conical, and the two sides of the pressure block (17) are respectively attached to the two folding plates (15).

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