Seat headrest structure and vehicle

Abstract

The utility model provides a seat headrest structure and a vehicle, and belongs to the technical field of automobile seats, the seat headrest structure comprises a headrest body, two connecting arms and an inflating and deflating module; wherein the two connecting arms are symmetrically connected to the two sides of the headrest body, the two connecting arms are each provided with an annular air bag, and the annular air bags are used for axially expanding during inflation so as to press the peripheries of the ear parts to form sound insulation spaces; the inflation and deflation module is arranged in the headrest body, connected with the two annular air bags and used for inflating and deflating the two annular air bags at the same time. According to the seat headrest structure provided by the utility model, the two annular air bags can be matched to form flexible clamping constraint on the head of a passenger, so that the head of the passenger is always protected and supported by the headrest body, and the sitting safety is improved; in addition, sound insulation spaces can be formed in the ears of the passengers through the inflated and expanded annular air bags, so that quiet rest conditions are created for the passengers, and the sitting and rest comfort is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat technology, specifically relating to a seat headrest structure and a vehicle. Background Technology

[0002] The purpose of car seat headrests is to provide comfortable support for passengers' heads to alleviate fatigue and prevent head and cervical spine injuries due to inertial forces in the event of a collision. In real-world driving scenarios, passengers other than the driver often need to sleep or rest. Since the head tends to tilt when asleep, the headrest loses its effective support. In emergencies such as rear-end collisions, this can easily lead to injuries. Furthermore, unavoidable noise during driving can also affect passenger comfort. Therefore, it is necessary to upgrade and modify car seat headrests to improve both passenger safety and comfort. Utility Model Content

[0003] This utility model provides a seat headrest structure designed to improve the head support effect of car seat headrests on passengers and create a quiet resting environment, thereby enhancing safety and comfort.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: Firstly, a seat headrest structure is provided, including a headrest body, two connecting arms, and an inflation / deflation module; wherein, the two connecting arms are symmetrically connected to both sides of the headrest body, and each connecting arm is provided with an annular airbag, which is used to expand when inflated to press against the outer periphery of the ear to form a sound insulation space; the inflation / deflation module is located inside the headrest body and connected to the two annular airbags, and is used to inflate and deflate the two annular airbags.

[0005] In conjunction with the first aspect, in one possible implementation, one end of the connecting arm is rotatably connected to the headrest body, and the other end forms an ear protector plate with an annular airbag on it; wherein, the connecting arm has a forward extension state in which the ear protector plate is located in front of the headrest body, and also has a retracted state in which the ear protector plate is attached to the side wall of the headrest body.

[0006] In some embodiments, the side wall of the headrest body is provided with a receiving groove, the front end of which extends to the front surface of the headrest body; in the stored state, the connecting arm is embedded in the receiving groove.

[0007] For example, the end of the connecting arm away from the ear protector is provided with a shaft hole, and the connecting arm is provided with an airflow channel. One end of the airflow channel is connected to the annular airbag, and the other end is connected to the shaft hole. Connecting shafts are provided on both sides of the front end of the receiving groove. The two connecting shafts are respectively sealed and inserted into the two ends of the shaft hole and rotatedly engaged with the shaft hole. The connecting shaft has a vent hole that passes through it along its axial direction. The inflation and deflation module is connected to each connecting shaft respectively.

[0008] For example, the inflation / deflation module includes an air pump and multiple air pipes connected to the air pump, with each air pipe corresponding to a specific connecting shaft.

[0009] In some embodiments, two limiting pins are spaced apart on the front wall of the receiving groove, and a limiting hole is provided on the connecting arm; wherein, in the extended state, the limiting hole is engaged with one of the limiting pins; and in the retracted state, the limiting hole is engaged with the other limiting pin.

[0010] In some embodiments, a Bluetooth headset module is provided within the connecting arm, and the Bluetooth headset module is located within the area surrounded by the annular airbag.

[0011] For example, one of the connecting arms is provided with a control button, which is electrically connected to the inflation / deflation module.

[0012] For example, the back of the headrest body has a recess for accommodating the inflation / deflation module, and the opening of the recess has a vent cover.

[0013] The beneficial effects of the seat headrest structure provided by this utility model are as follows: Compared with the prior art, the seat headrest structure of this utility model has two connecting arms symmetrically connected to the headrest body, which can be height adjusted based on the up-and-down adjustment of the headrest body, thus making it suitable for passengers of different heights; the annular airbags on the two connecting arms are inflated using the inflation and deflation module. After inflation, the annular airbags expand and press against the outer periphery of the passenger's ears. On the one hand, the two annular airbags work together to form a flexible clamping restraint on the passenger's head, thereby preventing the passenger's head from tilting while sleeping and ensuring that the passenger's head is always protected and supported by the headrest body, thus improving riding safety. On the other hand, the inflated annular airbags, pressed against the outer periphery of the ears, can form a sealed soundproof space for the passenger's ears, thereby isolating the passenger from vehicle noise and creating a quiet resting condition, thus improving the passenger's riding comfort; after use, the air in the two annular airbags is released, and the two connecting arms are released from the passenger's head, making the operation simple and convenient.

[0014] When passengers are sleeping, they can swing the two connecting arms to the extended state, and then inflate the annular airbag through the inflation and deflation module. The annular airbag can then be used to form a flexible restraint on the head and isolate noise, thereby improving the safety and comfort of resting. After passengers have finished resting, they can use the inflation and deflation module to deflate the two annular airbags to release their head, and then swing the two connecting arms to the retracted state, thereby avoiding the two connecting arms occupying the normal head space.

[0015] The headrest body has recesses on both sides to accommodate the connecting arms. When passengers finish resting and switch the two connecting arms to the storage state, the connecting arms can be inserted into the recesses, thus preventing the connecting arms from protruding from the side wall of the headrest body and taking up space. At the same time, it can also improve the stability of the connecting arms in the storage state, as well as the neatness and aesthetics of the headrest body.

[0016] The shaft hole at the end of the connecting arm not only allows for rotational connection with the connecting shaft, but also enables inflation and deflation of the annular airbag by connecting to the airflow channel, eliminating the need for external pipelines and improving the flexibility of the connecting arm's movement. Furthermore, the connecting shaft serves two purposes: firstly, it mates with the shaft hole to achieve rotational connection between the connecting arm and the headrest body; secondly, it utilizes its internal vent holes to connect the inflation / deflation module with the airflow channel, thereby connecting the inflation / deflation module with the annular airbag. The structure is simple and compact.

[0017] When the annular airbag is inflated, the airflow output by the air pump enters the airflow channel through the vents inside the connecting shafts via various air tubes. When the annular airbag is deflated, the airflow is discharged from the airflow channel through the vents inside the connecting shafts into various air tubes, and then discharged by the air pump. The inflation and deflation process is stable and smooth, and the inflation amount of the annular airbag can be controlled by controlling the air pump's on / off switch. This allows for adjustment of the annular airbag's expansion amount as needed, not only meeting the usage needs of passengers with different head circumferences, but also allowing for adjustment of the head clamping force, thereby improving comfort.

[0018] Two limiting pins correspond to the swing range of the connecting arm and provide positions for locking with limiting holes. When the connecting arm swings to the extended state, the front limiting pin is inserted into the limiting hole to ensure the stability of the connecting arm in the extended state. When the connecting arm swings to the retracted state, the rear limiting pin is inserted into the limiting hole to improve the stability of the connecting arm in the retracted state. It can be seen that using the limiting pins and limiting holes to position the swing of the connecting arm can improve the stability of the connecting arm in both the extended and retracted states, and prevent the connecting arm from swinging freely and affecting the user experience.

[0019] Using a Bluetooth headset module, passengers can connect with their electronic devices such as mobile phones and computers to play sound effects to help them sleep. This not only improves noise reduction but also enhances comfort. Furthermore, connecting the Bluetooth headset module with electronic devices eliminates the need for external wiring, further improving ease of use.

[0020] The control buttons are located on one of the connecting arms, which reduces the space occupied by other parts of the vehicle, such as the dashboard or the passenger dashboard. Moreover, passengers can easily reach the control buttons on the connecting arm to control the operation of the inflation and deflation module, thereby controlling the inflation volume of the ring airbag. The operation is convenient and the user experience is excellent.

[0021] The recessed cavity on the back of the headrest body ensures proper support for the head. At the same time, the cavity accommodates the inflation and deflation module, which effectively utilizes the internal space of the headrest and improves the structural compactness. The vent cover allows the inflation and deflation module to draw in external air or vent air into the cavity, thereby improving the working stability of the inflation and deflation module. The vent cover also has a dustproof function.

[0022] Secondly, this utility model embodiment also provides a vehicle including the above-described seat headrest structure.

[0023] The beneficial effects of the vehicle provided by this utility model are as follows: Compared with the prior art, the vehicle of this utility model adopts the above-mentioned seat headrest structure. The two connecting arms are symmetrically connected to the headrest body, and the height can be adjusted based on the up and down adjustment of the headrest body, thus making it suitable for passengers of different heights. The annular airbags on the two connecting arms are inflated by the inflation and deflation module. After inflation, the annular airbags expand axially and press against the outer periphery of the passenger's ears. On the one hand, the two annular airbags work together to form a flexible clamping restraint on the passenger's head, thereby preventing the passenger's head from tilting while sleeping and ensuring that the passenger's head is always protected and supported by the headrest body, thus improving riding safety. On the other hand, after the inflated annular airbags press against the outer periphery of the ears, they can form a sealed soundproof space for the passenger's ears, thereby isolating the passenger from vehicle noise and creating a quiet resting condition, thus improving the passenger's riding and resting comfort. Attached Figure Description

[0024] Figure 1 A schematic diagram of an axial view of a seat headrest structure in use, provided as an embodiment of this utility model. Figure 1 ;

[0025] Figure 2 A schematic diagram from an axial side view of a seat headrest structure in a stowed state, provided as an embodiment of this utility model;

[0026] Figure 3 A schematic diagram of an axial view of a seat headrest structure in use, provided as an embodiment of this utility model. Figure 2 ;

[0027] Figure 4A schematic diagram of a seat headrest structure excluding the headrest body is provided for an embodiment of this utility model;

[0028] Figure 5 This is a cross-sectional view of the connecting arm used in an embodiment of the present invention.

[0029] In the diagram: 10. Headrest body; 11. Receiving groove; 12. Connecting shaft; 121. Vent hole; 13. Limiting pin; 14. Vent cover; 20. Connecting arm; 21. Annular airbag; 211. Sound insulation space; 22. Ear protector plate; 23. Shaft hole; 24. Airflow channel; 25. Limiting hole; 30. Inflation / exhaust module; 31. Air pump; 32. Air tube; 40. Bluetooth headset module; 50. Control button. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0032] Please refer to the following: Figures 1 to 5 The present invention provides a seat headrest structure. The seat headrest structure includes a headrest body 10, two connecting arms 20, and an inflation / deflation module 30. The two connecting arms 20 are symmetrically connected to both sides of the headrest body 10, and each connecting arm 20 is provided with an annular airbag 21. The annular airbag 21 expands during inflation to press against the outer periphery of the ear, forming a sound-insulating space 211. The inflation / deflation module 30 is located inside the headrest body 10 and connected to the two annular airbags 21, and is used to inflate and deflate the two annular airbags 21.

[0033] It should be noted that the connection between the headrest body 10 and the seat back is a conventional lifting connection structure, which will not be described in detail here. Since the two connecting arms 20 are connected to the headrest body 10, the position of the annular airbag 21 can be adjusted simultaneously when the headrest body 10 is raised or lowered, allowing passengers of different heights to have the annular airbag 21 held against the outer periphery of their ears. Specifically, the annular airbag 21 can be an axial accordion-style airbag or a fully expanded airbag in both radial and axial directions. This allows for adjustment of its expansion amount by varying the inflation volume, enabling not only adjustment of the flexible clamping force of the two annular airbags 21 on the head but also catering to passengers with different head circumferences.

[0034] It should be explained that in this embodiment, the inflation / deflation module 30 can be an electric inflation / deflation device, which can be electrically connected to the vehicle control system and controlled by the operation commands of the in-vehicle control panel, or it can be controlled by a separate controller. Considering the convenience of use for passengers, the option of a separate controller is preferred. The inflation and deflation process of the two annular airbags 21 by the inflation / deflation module 30 can be carried out simultaneously or separately. Here, it is preferable to have the inflation / deflation module 30 inflate and deflate the two annular airbags 21 simultaneously, thereby ensuring that the flexible pressure exerted by the two annular airbags 21 on the two sides of the passenger's ears is consistent, and at the same time, it can keep the passenger's head in the middle of the two connecting arms to the greatest extent, thereby avoiding the passenger's head tilting and improving the user comfort experience.

[0035] In this embodiment, the annular airbag 21 can be a circular ring, an elliptical ring, or a polygonal ring, as long as it can form a space to accommodate the outline of the passenger's ear when it is inflated. Since the annular airbag 21 is pressed against the outer periphery of the ear after it is inflated, it can be used to create a sealed soundproof space 211 to isolate the passenger's ear from the outside world, thereby achieving the effect of sound insulation and noise reduction.

[0036] This embodiment provides a seat headrest structure that, compared to existing technologies, features two symmetrically connected connecting arms 20 to the headrest body 10, allowing for height adjustment based on the vertical adjustment of the headrest body 10. This makes it suitable for users of different heights. The inflation / deflation module 30 inflates the annular airbags 21 on the two connecting arms 20. After inflation, the annular airbags 21 expand and press against the outer periphery of the user's ears. This provides a flexible clamping restraint on the user's head, preventing injury during sleep. In the event of head tilt, the headrest body 10 ensures that the passenger's head is always protected and supported, thereby improving riding safety. As the inflated annular airbag 21 presses against the outer periphery of the ear, it forms a sealed soundproof space 211 for the passenger's ears, thus isolating the passenger from vehicle noise and creating a quiet resting environment, thereby improving the passenger's riding comfort. After use, simply releasing the gas from the two annular airbags 21 will release the two connecting arms 20 from the passenger's head, making the operation simple and convenient.

[0037] In some embodiments, see Figure 1 , Figure 2 and Figure 5 One end of the connecting arm 20 is rotatably connected to the headrest body 10, and the other end forms an ear protector plate 22, which is provided with an annular airbag 21. The connecting arm 20 has a forward extension state in which the ear protector plate 22 is located in front of the headrest body 10, and also has a storage state in which the ear protector plate 22 is attached to the side wall of the headrest body 10.

[0038] Since the annular airbag 21 is flexible, an ear protector plate 22 is provided to provide rigid support for the annular airbag 21, thereby ensuring the stability of the flexible clamping of the head by the annular airbag 21. On this basis, the connecting arm 20 is rotatably connected to the headrest body 10, so that the connecting arm 20 can be swung to the storage state when not in use, thereby avoiding the connecting arm 20 from occupying the head space of the passenger and ensuring comfort in normal riding conditions.

[0039] It should be noted that the swing of the connecting arm 20 can be manually swung by the passenger, or the swing of the connecting arm 20 can be electrically controlled by configuring a rotary drive component such as a motor. No specific limitation is made here.

[0040] For some possible implementations, please refer to [link / reference]. Figure 1 and Figure 2The headrest body 10 has a receiving groove 11 on its side wall, and the front end of the receiving groove 11 extends to the front surface of the headrest body 10. In the stored state, the connecting arm 20 is embedded in the receiving groove 11. By setting the receiving groove 11, the connecting arm 20 can be prevented from protruding from the side wall of the headrest body 10 and occupying space in the stored state. At the same time, the groove wall of the receiving groove 11 can also provide support and constraint for the connecting arm 20, preventing the connection between the connecting arm 20 and the headrest body 10 from being damaged or broken due to excessive force during vehicle bumps. This improves the stability of the connecting arm 20 in the stored state and reduces the probability of failure.

[0041] In some embodiments, see Figure 4 and Figure 5 The connecting arm 20 is provided with a shaft hole 23 at the end away from the ear protector plate 22. The connecting arm 20 is provided with an airflow channel 24. One end of the airflow channel 24 is connected to the annular airbag 21, and the other end is connected to the shaft hole 23. The front end of the receiving groove 11 is provided with connecting shafts 12 on both sides of the groove wall. The two connecting shafts 12 are respectively sealed and inserted into the two ends of the shaft hole 23 and rotatedly engaged with the shaft hole 23. The connecting shaft 12 has a vent hole 121 that passes through it along its axial direction. The inflation and deflation module 30 is connected to each connecting shaft 12 respectively.

[0042] To ensure the sealing of the connection between the connecting shaft 12 and the shaft hole 23, a sealing ring can be fitted on the connecting shaft 12. When the inflation / deflation module 30 inflates the annular airbag 21, the airflow can enter the shaft hole 23 through the vent hole 121 inside the connecting shaft 12, and then enter the airflow channel 24 to inflate the annular airbag 21. When the annular airbag 21 deflates, the airflow enters the shaft hole 23 through the airflow channel 24, and then enters the vent holes 121 opened inside the two connecting shafts 12 from both ends of the shaft hole 23 to be discharged to the inflation / deflation module 30. Here, the connecting shaft 12 serves both as a vent and a rotational coupling, and the overall structure is simple and compact.

[0043] It should be noted that if the connecting arm 20 adopts an automatic swing switching between the extended and retracted states driven by a motor, the aforementioned rotating shaft can be fixedly inserted into the shaft hole 23, and the rotating shaft and the groove wall of the receiving groove 11 are rotated together. Thus, the rotation drive of the connecting arm 20 can be realized by connecting the motor and the rotating shaft. It should be noted that in this case, the motor can be built into the headrest body 10.

[0044] Specifically, in this embodiment, the optional structure of the inflation / deflation module 30 is as follows: Figure 4As shown, the inflation / deflation module 30 includes an air pump 31 and multiple air pipes 32 connected to the air pump 31. Each air pipe 32 is respectively inserted into each connecting shaft 12. The air pump 31 used in this embodiment has pressure holding and deflation functions. It has one air inlet and one air outlet. Since each connecting arm 20 is rotatably connected to the headrest body 10 by two connecting shafts 12, the number of air pipes 32 can be four. Specifically, the air outlet of the air pump 31 is connected to a main pipe, and a five-way valve with one inlet and four outlets is connected to the main pipe. Each of the four outlets of the five-way valve is connected to an air pipe 32, so that the air pump 31 can simultaneously vent to the four air pipes 32, thereby realizing the simultaneous inflation and deflation of the two annular airbags 21 by the air pump 31. Each air pipe 32 can be inserted and fixed to each connecting shaft 12 by an interference fit to ensure the connection is sealed and prevent air leakage.

[0045] It should be noted that you should refer to [link / reference]. Figure 2 , Figure 3 and Figure 5 Two limiting pins 13 are spaced apart on the front wall of the receiving groove 11, and a limiting hole 25 is provided on the connecting arm 20; wherein, in the extended state, the limiting hole 25 is engaged with one of the limiting pins 13; in the retracted state, the limiting hole 25 is engaged with the other limiting pin 13.

[0046] The limiting pin 13 can be a conventional pin structure, but considering the convenience of operation, a ball positioning pin is preferred. That is, a ball is embedded in one end of the pin body, and a spring is set inside to apply a pushing force to the ball. When the connecting arm 20 touches the ball, the ball can retract into the pin body, and after the ball aligns with the limiting hole 25, it pops out and forms a locking with the limiting hole 25, thereby achieving the positioning of the connecting arm 20. When it is necessary to swing the connecting arm 20, only sufficient external force needs to be applied to make the ball disengage from the limiting hole 25, which can improve the convenience of operation while meeting the limiting function requirements.

[0047] It should be noted that the two limiting pins 13 are symmetrically distributed on both sides of the connecting shaft 12, so that the two limiting pins 13 can be accurately inserted into the limiting holes 25 after the connecting arm 20 swings to the corresponding angle. Of course, it is also possible to use one limiting pin 13 and two limiting holes 25. When the connecting arm 20 swings to the extended state, the limiting pin 13 is inserted into one of the limiting holes 25, and when the connecting arm 20 swings to the retracted state, the limiting pin 13 is inserted into the other limiting hole 25. This can also improve the stability of the connecting arm 20 in the extended and retracted states.

[0048] For some possible implementations, please refer to [link / reference]. Figure 1A Bluetooth headset module 40 is installed inside the connecting arm 20, located within the area surrounded by the annular airbag 21. Specifically, the Bluetooth headset module 40 can be an integrated module with both a Bluetooth module and a speaker module. It can establish a connection via Bluetooth with electronic devices brought by the passenger or in-vehicle devices such as mobile phones or computers, and play corresponding audio through the speaker module. Its Bluetooth connection and sound playback functions are conventional technologies and will not be detailed here. The main purpose of setting up the Bluetooth headset module 40 in this embodiment is twofold: firstly, it allows the passenger to obtain their preferred sound; secondly, the direction of the sound waves emitted by the Bluetooth headset module 40 into the soundproof space 211 is opposite to the direction of the noise sound waves transmitted from the outside into the soundproof space 211. Therefore, the sound played by the Bluetooth headset module 40 can suppress the transmission of external noise into the soundproof space 211, thereby improving the noise reduction effect.

[0049] It should be noted that, as Figure 1 As shown, in this embodiment, one of the connecting arms 20 is equipped with a control button 50, which is electrically connected to the inflation / deflation module 30. The control button 50 allows passengers to easily control the operation of the inflation / deflation module 30, thereby controlling the inflation state of the annular airbag 21, making operation convenient.

[0050] Specifically, the control button 50 can be one or more. Here, we will use three buttons as an example for control explanation. A long press of button one controls the power on / off of the inflation / deflation module 30. A long press of button two controls the inflation / deflation module 30 to inflate the annular airbag 21. Once the passenger feels the annular airbag 21 provides adequate pressure around the head, releasing button two stops inflation and maintains pressure. A short press of button three causes the annular airbag 21 to deflate rapidly, while a long press causes the annular airbag 21 to deflate slowly to reduce the pressure. It should be understood that the above control method is only one possible approach; other control methods are also possible and are not limited here.

[0051] It should be understood that, in this embodiment, please refer to... Figure 3 The back of the headrest body 10 has a recess for accommodating the inflation / deflation module 30, and a vent cover 14 is provided at the opening of the recess. The recess on the back ensures the normal support effect of the headrest body 10 on the head, and at the same time, accommodating the inflation / deflation module 30 in the recess effectively utilizes the internal space of the headrest, thereby improving the structural compactness. The vent cover 14 can be a grid plate or a perforated plate. The vent cover 14 facilitates the inflation / deflation module 30 to draw in external air or vent air into the recess, thereby improving the working stability of the inflation / deflation module 30, and also has a dustproof function.

[0052] Based on the same inventive concept, combined with Figures 1 to 5 It is understood that this application also provides a vehicle including the above-described seat headrest structure.

[0053] Compared with the prior art, the vehicle provided by this utility model adopts the above-mentioned seat headrest structure. The two connecting arms 20 are symmetrically connected to the headrest body 10, and the height can be adjusted based on the up and down adjustment of the headrest body 10, thus making it suitable for passengers of different heights. The inflation and deflation module 30 can be used to inflate the annular airbags 21 on the two connecting arms 20. After inflation, the annular airbags 21 expand and press against the outer periphery of the passenger's ears. On the one hand, the two annular airbags 21 work together to form a flexible clamping restraint on the passenger's head, thereby preventing the passenger's head from tilting while sleeping. This ensures that the passenger's head is always protected and supported by the headrest body 10, thereby improving riding safety. Since the inflated annular airbags 21 press against the outer periphery of the ears, they can form a sealed soundproof space 211 for the passenger's ears, thereby isolating the passenger from vehicle noise and creating a quiet resting condition, thus improving the passenger's riding and resting comfort.

[0054] 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 and improvements 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 seat headrest structure, characterized by, The utility model provides a seat headrest structure, which comprises the following: a headrest body (10); two connecting arms (20) symmetrically connected to the two sides of the headrest body (10), each of the two connecting arms (20) being provided with an annular air bag (21) for expanding to press the outer periphery of the ear to form a sound insulation space (211) when inflated; a charging and discharging module (30) arranged inside the headrest body (10) and connected to the two annular air bags (21) for charging and discharging the two annular air bags (21).

2. A headrest structure for a seat as defined in claim 1, characterized in that One end of the connecting arm (20) is rotatably connected to the headrest body (10), and the other end forms an ear guard plate (22) provided with the annular air bag (21); wherein the connecting arm (20) has a forward stretching state in which the ear guard plate (22) is swung to be located in front of the headrest body (10), and has a storage state in which the ear guard plate (22) is swung to be attached to the side wall of the headrest body (10).

3. A headrest structure for a seat as claimed in claim 2, wherein The side wall of the headrest body (10) is provided with a receiving groove (11), and the front end of the receiving groove (11) extends to the front surface of the headrest body (10); in the storage state, the connecting arm (20) is embedded in the receiving groove (11).

4. A headrest structure for a seat as claimed in claim 3, wherein The end of the connecting arm (20) away from the ear guard plate (22) is provided with a shaft hole (23), the inside of the connecting arm (20) is provided with an airflow channel (24), one end of the airflow channel (24) is in communication with the annular air bag (21), and the other end is in communication with the shaft hole (23); the front end of the receiving groove (11) is provided with a connecting shaft (12) on each of the two side walls, and the two connecting shafts (12) are respectively sealingly inserted into the two ends of the shaft hole (23) and rotatably connected with the shaft hole (23); wherein the connecting shaft (12) has an air hole (121) penetrating along the axial direction thereof, and the charging and discharging module (30) is connected with each connecting shaft (12).

5. A headrest structure for a seat as claimed in claim 4, wherein The charging and discharging module (30) comprises a gas pump (31) and a plurality of gas pipes (32) connected to the gas pump (31), and each gas pipe (32) is correspondingly inserted into each connecting shaft (12).

6. A seat headrest structure as defined in claim 4 wherein, Two limiting pins (13) are arranged on the front end of the receiving groove (11) at intervals, and the connecting arm (20) is provided with a limiting hole (25); wherein in the forward stretching state, the limiting hole (25) is inserted and matched with one of the limiting pins (13); and in the storage state, the limiting hole (25) is inserted and matched with the other limiting pin (13).

7. A seat headrest structure as defined in claim 1 wherein, A Bluetooth earphone module (40) is arranged in the connecting arm (20), and the Bluetooth earphone module (40) is located in the area surrounded by the annular air bag (21).

8. A seat headrest structure as defined in claim 1 wherein, One of the connecting arms (20) is provided with a control button (50), and the control button (50) is electrically connected with the charging and discharging module (30).

9. A headrest structure as claimed in any one of claims 1 to 8, wherein, The back of the headrest body (10) is provided with a recess for accommodating the charging and discharging module (30), and the mouth of the recess is provided with an air cover plate (14).

10. Vehicle, characterized in that The utility model provides a seat headrest structure, which comprises the following: a headrest body (10); two connecting arms (20) symmetrically connected to the two sides of the headrest body (10), each of the two connecting arms (20) being provided with an annular air bag (21) for expanding to press the outer periphery of the ear to form a sound insulation space (211) when inflated; a charging and discharging module (30) arranged inside the headrest body (10) and connected to the two annular air bags (21) for charging and discharging the two annular air bags (21).

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