Multi-gas-path hose, movable headrest and automobile seat

Abstract

The utility model provides a multi-gas-path hose, a movable headrest and an automobile seat, the multi-gas-path hose comprises a gas guide pipe fitting, the gas guide pipe fitting comprises an outer pipe wall and a spacing pipe body, and the spacing pipe body divides a gas path in the outer pipe wall into at least two gas guide passages which are not communicated with each other. According to the multi-air-path hose provided by the invention, the inner air path of the air pipe is divided into a plurality of different air guide passages on the basis of one air pipe, so that air can be supplied to a plurality of air bags through one multi-air-path hose, and one multi-air-path hose can easily penetrate through the interior of a headrest rod; the problem that the installation of the headrest rod is influenced by a plurality of air pipes is avoided.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of automotive components, and particularly relates to a multi-air passage hose, a movable headrest, and an automotive seat. Background Art

[0002] In automotive design, the seat headrest plays a crucial role in ensuring the neck safety and comfort of the occupants. The pneumatic headrest drive device is introduced as an innovative design to provide more personalized and comfortable head support for the occupants.

[0003] The pneumatic headrest drive device supports different positions of the seat headrest by inflating and deflating the airbag, thereby providing head support to varying degrees. The airbag is connected to the air source through a trachea. The existing pneumatic headrest drive device adjusts the headrest in two directions through two airbags. With the increasing application of the pneumatic drive device in automotive seats, when there are multiple airbags, it is difficult to install the headrest rod because the corresponding multiple tracheas pass through the narrow pipeline inside the headrest rod. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a multi-air passage hose, a movable headrest, and an automotive seat to solve the above problems.

[0005] In a first aspect of the present application, a multi-air passage hose is provided, including a gas guiding member, the gas guiding member including an outer tube wall and a spaced tube body, and the spaced tube body divides the gas path inside the outer tube wall into at least two non-communicating gas guiding passages.

[0006] In a second aspect of the present application, a movable headrest is provided, including a headrest fixing part and a headrest housing. The headrest fixing part is installed at the top of the seat headrest rod, the headrest housing is sleeved outside the headrest fixing part, the inner cavity of the headrest housing is divided into two installation cavities arranged along a first direction by the headrest fixing part, and the headrest housing and the headrest fixing part slide along the first direction. The movable headrest includes the multi-air passage hose as described above, and further includes:

[0007] A pneumatic drive device, at least one pneumatic drive device is arranged in each of the installation cavities, and the volume of the pneumatic drive device changes when it inflates and deflates;

[0008] A gas guiding assembly, the gas guiding assembly including the gas guiding member, and each gas guiding passage is communicated with a gas source device and one of the pneumatic drive devices.

[0009] According to the technical solution provided by the embodiment of the present application, the gas guiding assembly further includes:

[0010] The first air distribution component, the first air distribution component includes a first interface and a second interface that are the same in number as and correspond to and communicate with the air guide passages one by one. Each first interface is used to communicate with the air source device through a first independent air pipe, and each second interface communicates with one of the air guide passages;

[0011] The second air distribution component, the second air distribution component includes a third interface and a fourth interface that are the same in number as and correspond to and communicate with the air guide passages one by one. Each third interface is used to communicate with one of the pneumatic driving devices through a second independent air pipe, and each fourth interface communicates with one of the air guide passages.

[0012] According to the technical solution provided by the embodiment of the present application, the air pipe component is arranged in the seat headrest rod, one end of the air pipe component connected to the first air distribution component extends out of the seat headrest rod, and the independent air pipes connected to the second air distribution component penetrate through the side wall of the seat headrest rod and communicate with the pneumatic driving device.

[0013] According to the technical solution provided by the embodiment of the present application, a guide post extending along the first direction is provided on the inner wall of the headrest housing, and a through hole for the guide post to pass through is provided on the headrest fixing part.

[0014] According to the technical solution provided by the embodiment of the present application, guide chutes extending along the first direction are provided on both sides of the headrest fixing part, and guide rails slidably connected to the guide chutes are provided on the inner wall of the headrest housing, and the sliding direction is the first direction.

[0015] According to the technical solution provided by the embodiment of the present application, guide rib columns are provided on the inner top wall and inner bottom wall of the headrest housing, and at least one limiting part is provided on the guide rib column. The limiting part extends along the first direction and abuts against the headrest fixing part.

[0016] According to the technical solution provided by the embodiment of the present application, a non-woven fabric structure is provided between the headrest fixing part and the limiting part, and the non-woven fabric structure is installed on the headrest fixing part.

[0017] According to the technical solution provided by the embodiment of the present application, lubricating grease is coated on the guide rail and the guide post.

[0018] According to the technical solution provided by the embodiment of the present application, a headrest housing cover is formed on the side wall of the headrest housing, and the headrest housing cover is detachably connected to the headrest housing.

[0019] A third aspect of the present application provides an automobile seat, including a seat backrest, a seat headrest rod, and the movable headrest as described above.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows: The multi-airway hose provided by the present application divides the inner airway of the trachea into multiple different air guiding passages on the basis of one trachea, so that multiple air bags can be supplied with air through one multi-airway hose, and one multi-airway hose can easily pass through the inside of the headrest rod, avoiding the problem that multiple tracheas affect the installation of the headrest rod. Description of the Drawings

[0021] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0022] Figure 1 Schematic structural diagram of the multi-airway hose provided for Embodiment 1;

[0023] Figure 2 Schematic structural diagram of the multi-airway hose integrating three air guiding passages;

[0024] Figure 3 Schematic structural diagram of the multi-airway hose integrating four air guiding passages;

[0025] Figure 4 Schematic structural diagram of the multi-airway hose integrating five air guiding passages;

[0026] Figure 5 Schematic structural diagram of the mobile headrest provided for Embodiment 2;

[0027] Figure 6 For Figure 5 Enlarged structural schematic at a in

[0028] Figure 7 Exploded view of the mobile headrest.

[0029] Reference numerals in the drawings: 1, headrest fixing part; 2, headrest housing; 3, seat headrest rod; 4, pneumatic driving device; 5, air guiding pipe fitting; 5-1, outer pipe wall; 5-2, spacer pipe body; 6, air guiding passage; 7, first air distribution part; 8, first interface; 9, second air distribution part; 10, second interface; 11, guiding column; 12, through hole; 13, guiding chute; 14, guiding slide rail; 15, guiding rib column; 16, limiting part; 17, non-woven fabric structure; 18, headrest housing cover; 19, third interface; 20, fourth interface; 21, first independent trachea; 22, second independent trachea. Detailed Embodiments

[0030] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] Embodiment 1

[0033] Please refer to Figures 1 - 4 , this embodiment provides a multi-airway hose, including an air duct member 5, the air duct member 5 includes an outer tube wall 5-1 and a spacer tube body 5-2, and the spacer tube body 5-2 divides the air path inside the outer tube wall 5-1 into at least two non-communicating air guide passages 6.

[0034] Specifically, the air duct member 5 is made of a flexible material, the inside of the air duct member 5 is hollow and both ends are connected, the outer tube wall 5-1 of the air duct member 5 has different shapes according to the number of the provided air guide passages 6, and the spacer tube body 5-2 is arranged inside the outer tube wall 5-1, thereby dividing the air path inside the air duct member 5 to form a plurality of non-communicating air guide passages 6. When in use, the multi-airway hose is passed through the cavity inside the headrest rod, one end can extend into the headrest for connecting an airbag, and the other end extends into the seat backrest for connecting an air source. The multi-airway hose provided in this embodiment integrates a plurality of air guide passages 6 inside while having a diameter similar to that of an ordinary air pipe, which not only ensures the stability of the plurality of air guide passages 6 together, but also does not make the overall cross-sectional area too large, and greatly adapts to the function of supplying air to a plurality of airbags separately inside the headrest rod.

[0035] Embodiment 2

[0036] Please refer to Figures 5 - 7 , the present application provides a movable headrest, including a headrest fixing part 1 and a headrest housing 2, the headrest fixing part 1 is installed on the top of the seat headrest rod 3, the headrest housing 2 is sleeved outside the headrest fixing part 1, the inner cavity of the headrest housing 2 is divided by the headrest fixing part 1 into two installation cavities arranged along a first direction, the headrest housing 2 and the headrest fixing part 1 slide along the first direction, and it includes the multi-airway hose as described in Embodiment 1, and further includes:

[0037] A pneumatic driving device 4, at least one pneumatic driving device 4 is arranged in each installation cavity, and the volume of the pneumatic driving device 4 changes when inflating and deflating;

[0038] Air guiding assembly, the air guiding assembly includes the air guiding pipe member 5, and each air guiding passage 6 communicates with an air source device and one of the pneumatic driving devices 4.

[0039] Specifically, the seat headrest rod 3 is a U-shaped headrest rod, the seat headrest rod 3 is installed on the seat backrest, the headrest fixing part 1 is provided with a U-shaped fixing hole corresponding to the seat headrest rod 3, and the headrest fixing part 1 is connected to the seat headrest rod 3 by inserting the seat headrest rod 3 into the U-shaped fixing hole. The headrest housing 2 is sleeved outside the headrest fixing part 1, and the headrest housing 2 is slidable relative to the headrest fixing part 1, so as to realize the adjustment of the position of the headrest in the front-back direction of the occupant when the occupant is sitting. The headrest fixing part 1 and the headrest housing 2 form a seat headrest; the pneumatic driving devices 4 are fixed on the front and rear sides of the headrest fixing part 1 by buckles. The pneumatic driving device 4 is made of flexible material and is hollow inside. The pneumatic driving device 4 has elasticity. The pneumatic driving device 4 communicates with the air source device through the air guiding passage 6 on the air guiding pipe member 5, so as to realize inflation and deflation controlled by the air source device. The air source device is arranged in the seat backrest. Optionally, the air source device is an air pump, and the pneumatic driving device 4 is an air bag; the inside of the headrest housing 2 is hollow, the headrest fixing part 1 divides the inner cavity of the headrest housing 2 into two installation cavities, the two installation cavities are arranged one in front and one behind, and at least one pneumatic driving device 4 is arranged in each installation cavity. When the inflation amount of the pneumatic driving device 4 in the front installation cavity is greater than the inflation amount of the pneumatic driving device 4 in the rear installation cavity, the headrest housing 2 adjusts its position forward. On the contrary, when the inflation amount of the pneumatic driving device 4 in the rear installation cavity is greater than the inflation amount of the pneumatic driving device 4 in the rear installation cavity, the headrest housing 2 adjusts its position backward. The inflation amounts of the two pneumatic driving devices 4 are different, and the position of the headrest housing 2 relative to the headrest fixing part 1 is also different. It should be noted that the front-back direction mentioned here is relative to the front-back direction of the vehicle, and the front-back direction in the following text is the same, and the left-right direction in the following text is also relative to the left-right direction of the vehicle.

[0040] Specifically, in this embodiment, two air guiding passages 6 are integrated in the air guiding pipe member 5. Both ends of the two air guiding passages 6 are connected to one pneumatic driving device 4 at one end and to the air source device at the other end. Through the air guiding pipe member 5, inflation and deflation of the two pneumatic driving devices 4 can be realized respectively, so as to improve the movement stability of the headrest housing 2 while not increasing the number of air pipes and avoiding the influence of the air guiding pipe member 5 on the installation of the seat headrest rod 3.

[0041] Further, the air guiding assembly further includes:

[0042] The first air distribution component 7, the first air distribution component 7 includes a first interface 8 and a second interface 10 that are the same in number as and in one-to-one correspondence with the air guiding passages 6, each of the first interfaces 8 is used to communicate with the air source device through a first independent air pipe 21, and each of the second interfaces 10 communicates with one of the air guiding passages 6;

[0043] The second air distribution component 9, the second air distribution component 9 includes a third interface 19 and a fourth interface 20 that are the same in number as and in one-to-one correspondence with the air guiding passages 6, each of the third interfaces 19 is used to communicate with one of the pneumatic driving devices 4 through a second independent air pipe 22, and each of the fourth interfaces 20 communicates with one of the air guiding passages 6.

[0044] Specifically, please refer to Figure 5 The first air distribution component 7 is used to connect the air guiding passage 6 and the air source device. One end of the first air distribution component 7 is provided with a plurality of first interfaces 8, and the other end is provided with a plurality of second interfaces 10. The first interfaces 8 and the second interfaces 10 are in one-to-one correspondence and communication. The number of the first interfaces 8 and the number of the second interfaces 10 are the same as the number of the air guiding passages 6 on the air guiding pipe component 5. The second interfaces 10 communicate with the air guiding passages 6, and the first interfaces 8 communicate with different air ports of the air source device through the first independent air pipes 21. The second air distribution component 9 is used to connect the air guiding passage 6 and the pneumatic driving device 4. One end of the second air distribution component 9 is provided with a plurality of third interfaces 19, and the other end is provided with a plurality of fourth interfaces 20. The third interfaces 19 and the fourth interfaces 20 are in one-to-one correspondence and communication. The number of the third interfaces 19 and the number of the fourth interfaces 20 are the same as the number of the air guiding passages 6 on the air guiding pipe component 5. The fourth interfaces 20 communicate with the air guiding passages 6, and the third interfaces 19 communicate with the pneumatic driving device 4 through the second independent air pipes 22.

[0045] Further, the air guiding pipe component 5 is arranged in the seat headrest rod 3. One end of the air guiding pipe component 5 connected to the first air distribution component 7 extends out of the seat headrest rod 3, and the independent air pipes connected to the second air distribution component 9 penetrate through the side wall of the seat headrest rod 3 to communicate with the pneumatic driving device 4.

[0046] Specifically, please refer to Figure 5 The air guiding pipe component 5 is installed in the seat headrest rod 3. The first air distribution component 7 is placed near one end of the seat headrest rod 3 extending into the seat backrest, and the second air distribution component 9 is placed near one end of the seat headrest rod 3 extending into the seat headrest. The first independent air pipe 21 extends out of the seat headrest rod 3 and extends to the air source device, and the second independent air pipe 22 penetrates through the side wall of the seat headrest rod 3 and extends to the pneumatic driving device 4.

[0047] Further, a headrest housing cover 18 is formed on the side wall of the headrest housing 2, and the headrest housing cover 18 is detachably connected to the headrest housing 2.

[0048] Specifically, as Figure 7 shown, headrest housing covers 18 that are detachably connected to the headrest housing 2 are formed on the front and rear side walls of the headrest housing 2. Optionally, mounting holes are provided on the headrest housing covers 18, and the headrest housing covers 18 and the headrest housing 2 are connected by screws.

[0049] Specifically, the inside of the seat headrest rod 3 is hollow, the air duct member 5 is placed inside the seat headrest rod 3, one end of the air duct member 5 extends out of the seat headrest rod 3 and extends into the seat backrest and is provided with the first air distribution member 7; the other end of the air duct member 5 penetrates through the outer wall of the seat headrest rod 3 and extends into the headrest fixing part 1 and is provided with the second air distribution member 9.

[0050] Further, a guide post 11 extending along the first aspect is provided on the inner wall of the headrest housing 2, and a through hole 12 for the guide post 11 to pass through is provided on the headrest fixing part 1.

[0051] Specifically, as Figure 6 and Figure 7 shown, the guide post 11 is provided on the headrest housing cover 18 located at the rear side, the guide post 11 extends in the front-rear direction, the guide post 11 penetrates through the through hole 12 on the headrest fixing part 1. Since the position of the headrest fixing part 1 is fixed, by providing the guide post 11 and the through hole 12, the headrest housing 2 can slide relative to the headrest fixing part 1 in the front-rear direction, and at the same time, the stability of the headrest housing 2 is maintained.

[0052] Further, guide chutes 13 extending along the first aspect are provided on both sides of the headrest fixing part 1, and guide rails 14 slidably connected to the guide chutes 13 are provided on the inner wall of the headrest housing 2, and the sliding direction is the first direction.

[0053] Specifically, as Figure 6 and Figure 7 shown, guide chutes 13 are respectively provided on the left and right sides of the headrest fixing part 1, the guide chutes 13 extend in the front-rear direction, the guide rails 14 are provided on the left and right inner walls of the headrest housing 2, the guide rails 14 are snap-connected to the guide chutes 13 and can slide in the front-rear direction. The arrangement of the guide rails 14 and the guide chutes 13 is on the one hand convenient for the relative sliding of the headrest housing 2 and the headrest fixing part 1, and on the other hand can further improve the stability of the left and right sides between the headrest housing 2 and the headrest fixing part 1.

[0054] Further, guiding rib columns 15 are provided on the inner top wall and the inner bottom wall of the headrest housing 2, and at least one limiting portion 16 is provided on the guiding rib column 15. The limiting portion 16 extends along the first direction and abuts against the headrest fixing portion 1.

[0055] Specifically, as Figure 6 shown, guiding rib columns 15 are provided on the upper and lower inner walls of the headrest housing 2. At least one limiting portion 16 is provided on the side of the guiding rib column 15 close to the headrest fixing portion 1. The limiting portion 16 is a strip-shaped protrusion formed on the guiding rib column 15. The limiting portion 16 extends in the front-rear direction. The limiting portion 16 is used to improve the stability of the headrest housing 2 in the up-down direction when sliding in the front-rear direction. At the same time, setting the limiting portion 16 as a strip shape can also avoid affecting the sliding of the headrest housing 2 in the front-rear direction.

[0056] Further, a non-woven fabric structure 17 is provided between the headrest fixing portion 1 and the abutting portion, and the non-woven fabric structure 17 is mounted on the headrest fixing portion 1.

[0057] Specifically, the non-woven fabric structure 17 is provided on the top surface and the bottom surface of the headrest fixing portion 1. The non-woven fabric structure 17 is filled between the limiting portion 16 and the headrest fixing portion 1. The function of the non-woven fabric structure 17 is to achieve buffering and vibration reduction by using a soft layer, and at the same time reduce the gap between the headrest housing 2 and the headrest fixing portion 1 to prevent the problem of the headrest housing 2 shaking caused by unstable inflation and deflation of the pneumatic driving device 4.

[0058] Further, lubricating grease is coated on the guiding slide rail 14 and the guiding column 11.

[0059] Specifically, by coating lubricating grease on the guiding slide rail 14 and the guiding column 11, the relative sliding between the headrest housing 2 and the headrest fixing portion 1 is made smoother, and the abnormal noise generated during sliding is reduced.

[0060] Embodiment 3

[0061] This embodiment provides an automobile seat, including a seat backrest, a seat headrest rod 3, and a movable headrest as described in Embodiment 2.

[0062] Specifically, the vehicle seat provided in this embodiment can achieve the front-back adjustment of the seat headrest. The adjustment process is realized by inflating and deflating the pneumatic driving device 4. The structure is simple. By integrating multiple groups of the air guiding passages 6 on the air guiding pipe member 5, the air source device can inflate and deflate multiple pneumatic driving devices 4 respectively through one air guiding pipe member 5. Furthermore, the air guiding pipe member 5 can be passed through the seat headrest rod 3, avoiding the exposure of the air guiding pipe member 5 and affecting the aesthetics of the seat. Moreover, the structure of the seat headrest is stable, which can prevent the shaking of the seat headrest caused by the unstable inflation and deflation of the pneumatic driving device 4.

[0063] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. A multi-airway hose, characterized in that, It includes an air duct member (5), and the air duct member (5) includes an outer pipe wall (5-1) and a spacer pipe body (5-2). The spacer pipe body (5-2) divides the air path inside the outer pipe wall (5-1) into at least two non-connecting air guiding passages (6).

2. A mobile headrest, comprising a headrest fixing part (1) and a headrest housing (2). The headrest fixing part (1) is installed at the top of a seat headrest rod (3), and the headrest housing (2) is sleeved outside the headrest fixing part (1). The inner cavity of the headrest housing (2) is divided into two installation cavities arranged along a first direction by the headrest fixing part (1), and the headrest housing (2) slides along the first direction with the headrest fixing part (1). It is characterized in that, It includes the multi-air path hose as described in Claim 1, and further includes: A pneumatic driving device (4), with at least one pneumatic driving device (4) provided in each of the installation cavities. The volume of the pneumatic driving device (4) changes during inflation and deflation. An air guiding assembly, and the air guiding assembly includes the air duct member (5). Each air guiding passage (6) is used to communicate with an air source device and one of the pneumatic driving devices (4).

3. The mobile headrest according to claim 2, wherein, The air guiding assembly further includes: A first air distribution member (7), and the first air distribution member (7) includes a first interface (8) and a second interface (10) that are the same in number as and in one-to-one correspondence with the air guiding passages (6). Each first interface (8) is used to communicate with the air source device through a first independent air pipe (21), and each second interface (10) communicates with one air guiding passage (6). A second air distribution member (9), and the second air distribution member (9) includes a third interface (19) and a fourth interface (20) that are the same in number as and in one-to-one correspondence with the air guiding passages (6). Each third interface (19) is used to communicate with one of the pneumatic driving devices (4) through a second independent air pipe (22), and each fourth interface (20) communicates with one air guiding passage (6).

4. The mobile headrest according to claim 3, wherein The air duct member (5) is provided inside the seat headrest rod (3). One end of the air duct member (5) connected to the first air distribution member (7) extends out of the seat headrest rod (3). The independent air pipes connected to the second air distribution member (9) penetrate through the side wall of the seat headrest rod (3) to communicate with the pneumatic driving device (4).

5. The mobile headrest according to any one of claims 2-4, characterized in that, On the inner wall of the headrest housing (2), there are guide posts (11) extending along the first direction. On the headrest fixing part (1), there are through holes (12) for the guide posts (11) to pass through.

6. The mobile headrest according to any one of claims 2-4, characterized in that, On both sides of the headrest fixing part (1), there are guide chutes (13) extending along the first direction. On the inner wall of the headrest housing (2), there are guide rails (14) slidably connected to the guide chutes (13), and the sliding direction is the first direction.

7. The mobile headrest according to any one of claims 2-4, characterized in that, On the inner top wall and inner bottom wall of the headrest housing (2), there are guide rib columns (15). On the guide rib columns (15), there are at least one limiting part (16). The limiting part (16) extends along the first direction and abuts against the headrest fixing part (1).

8. The mobile headrest according to claim 7, characterized in that, There is a non-woven fabric structure (17) between the headrest fixing part (1) and the limiting part (16), and the non-woven fabric structure (17) is installed on the headrest fixing part (1).

9. The mobile headrest according to claim 2, wherein On the side wall of the headrest housing (2), there is formed a headrest housing cover (18), and the headrest housing cover (18) is detachably connected to the headrest housing (2).

10. An automotive seat, characterized in that, It includes a seat back, a seat headrest rod (3), and a mobile headrest as described in any one of Claims 2-9.

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