Silencing air tap structure, mute air bag and pneumatic comfort system

Abstract

The utility model relates to a silencing air tap structure, mute air bag and pneumatic comfort system.The silencing air tap structure comprises a silencing cavity and a silencing piece, the silencing cavity is provided with a cavity, an air inlet end and an air outlet end, the air inlet end and the air outlet end are communicated with the cavity, the silencing piece is assembled on the cavity of the silencing cavity, and the silencing piece is connected with the silencing cavity. And the silencing piece is provided with a micropore air channel which allows air circulation to be realized between the air inlet end and the air outlet end of the silencing cavity. According to the silencing air nozzle structure, through the silencing cavity and the silencing piece arranged in the silencing cavity, the air channel between the air inlet end and the air outlet end of the silencing cavity is blocked, and air can only flow through the micropore air channel of the silencing piece, so that the air filled from the air inlet end of the silencing cavity can only flow through the micropore air channel of the silencing piece; and after being decelerated by the micropore air passage of the silencing piece, the air enters the inflation space of the air bag from the air outlet end of the silencing cavity, so that the air flowing rapidly is prevented from generating noise, and the air flow sound is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic comfort systems, in particular to a silencer air nozzle structure, a silent air bag and a pneumatic comfort system. Background Art

[0002] Pneumatic comfort systems, including pneumatic lumbar support systems, pneumatic massage systems, etc., inflate the lumbar support air bags, massage air bags, etc. arranged on the supporting equipment through the air supply unit, so that the corresponding air bags are inflated to achieve the effect of pneumatic support and massage. For example, in the seat pneumatic massage system, the massage air bags are arranged on the backrest or seat of the seat, and the massage air bags are inflated by the air supply unit to provide massage for the seated person.

[0003] In traditional pneumatic comfort systems, the air pipe connecting the air supply unit and the air bag usually extends directly into the air bag, and the air outlet of the air pipe in the air bag is connected to an open air nozzle. During inflation, the gas is sprayed directly from the air nozzle into the cavity of the air bag. The high-speed and vortex airflow generates loud noise, which affects the experience of the pneumatic comfort system. In the prior art, a silencer air nozzle is used to inflate an air bag, such as the silencer air nozzle structure and the air bag containing the same disclosed in patent CN 204632328 U. The air nozzle structure includes a perforated diaphragm forming a cavity with the exhaust end, and a microporous partition is arranged in the cavity of the perforated diaphragm, and a raised column is formed at the exhaust end to support the microporous partition. Although the silencer air nozzle can achieve inflation and noise reduction of the air bag, the silencer structure of the air nozzle structure is complex, the molding process on the air bag is difficult, the production cost is high, and it is not conducive to improving production efficiency; moreover, after the microporous partition is used to reduce speed and noise, since the holes on the perforated diaphragm are small holes, even if multiple small holes are simultaneously inlet and outlet, it is still difficult to reach the inflation and deflation speed corresponding to the exhaust port, which will slow down the inflation and deflation speed of the overall air bag. Although the noise reduction effect is achieved, the inflation and deflation efficiency is greatly reduced. Summary of the invention

[0004] In order to overcome the problem that when gas enters the air bag, the air flow noise is loud, which affects the comfort of the pneumatic comfort system in the above-mentioned prior art, the utility model provides a silencer air nozzle structure, a silent air bag and a pneumatic comfort system.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] According to one purpose of the utility model, a silencer air nozzle structure is provided, comprising a silencer cavity and a silencer component, the silencer cavity having a chamber and an air inlet end and an air outlet end connected to the chamber, the silencer component being assembled on the chamber of the silencer cavity, and the silencer component having a microporous airway allowing gas to flow between the air inlet end and the air outlet end of the silencer cavity.

[0007] In some optional implementations, an assembly groove communicating with the chamber is provided on the silencer cavity, and the silencer is assembled on the assembly groove and placed in the chamber.

[0008] In some optional implementations, when a section is taken along a direction intersecting a direction from the air inlet end to the air outlet end, a cross-sectional area of ​​the silencer is larger than a cross-sectional area of ​​the air inlet end.

[0009] In some optional implementations, when a section is taken along a direction intersecting a direction from the air inlet end to the air outlet end, a cross-sectional area of ​​the air outlet end is greater than a cross-sectional area of ​​the air inlet end.

[0010] In some optional implementations, the sound-absorbing member includes a sound-absorbing sheet.

[0011] According to another object of the utility model, a silent air bag is provided, comprising a bag body and the silent air nozzle structure described above, wherein the air outlet end of the silent cavity of the silent air nozzle structure is connected to the inflation space of the bag body.

[0012] In some optional implementations, an air pipe is further included, and the air pipe is connected to the air inlet end of the silencer cavity of the silencer air nozzle structure.

[0013] In some optional implementations, the silencer air nozzle structure is disposed in the inflation space of the bag body, and the air pipe extends into the inflation space of the bag body.

[0014] In some optional implementations, the silencing cavity is fixedly connected to the bag body.

[0015] According to another object of the present utility model, a pneumatic comfort system is provided, comprising:

[0016] Several of the above-mentioned silent air bags;

[0017] Air supply unit;

[0018] and a gas distribution device, through which the gas supply unit is communicated with the silent air bag.

[0019] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0020] The silencer air nozzle structure provided by the utility model blocks the airway between the air inlet end and the air outlet end of the silencer cavity through a silencer cavity and a silencer component arranged in the silencer cavity, so that the gas can only flow through the microporous airway of the silencer component. As a result, the gas filled in from the air inlet end of the silencer cavity is decelerated through the microporous airway of the silencer component and then enters the inflation space of the air bag from the air outlet end of the silencer cavity, thereby avoiding noise generated by rapidly flowing gas and eliminating airflow sound.

[0021] Moreover, the cross-sectional area of ​​the outlet end of the silencer cavity and the cross-sectional area of ​​the silencer are designed to be larger than the cross-sectional area of ​​the inlet end, so that the outlet flux of the silencer and the outlet end can be close to the inlet flux of the inlet end. When used for inflating the air bag, it can silence and reduce noise while ensuring the inflation and deflation efficiency.

[0022] The silent air bag provided by the utility model is provided with the silent air nozzle structure. By adopting the silent air nozzle structure to inflate and deflate air, the noise generated by the rapidly flowing gas is avoided, the air flow sound is eliminated, and the inflation and deflation efficiency of the air bag is ensured.

[0023] The pneumatic comfort system of the utility model adopts the silent air bag described above, so that the entire pneumatic comfort system can be quietly inflated and deflated during operation, thereby providing better comfort.

[0024] The above description is only an overview of the technical solution of the embodiment of the utility model. In order to more clearly understand the technical means of the embodiment of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are only used to illustrate the embodiments and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0026] Figure 1 A schematic structural diagram of a silencer air nozzle structure provided in an embodiment of the utility model.

[0027] Figure 2 An exploded view of the silencer air nozzle structure provided in an embodiment of the utility model.

[0028] Figure 3 A schematic structural diagram of the silencer cavity of the silencer air nozzle structure provided in an embodiment of the utility model.

[0029] Figure 4 The embodiment of the utility model provides Figure 1 The CC section view of the silencer air nozzle structure is shown.

[0030] Figure 5 An exploded view of a silent airbag provided in an embodiment of the utility model.

[0031] Figure 6 A schematic diagram of the structure of a silent airbag provided in an embodiment of the utility model.

[0032] Figure 7 The embodiment of the utility model provides Figure 6 AA section view of the silent airbag shown.

[0033] Among them, 1-silence chamber, 11-air inlet end, 12-air outlet end, 13-assembly groove, 14-first gap, 15-second gap, 16-positioning protrusion, 2-silence piece, 3-bag body, 4-trachea.

[0034] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present invention and should not be regarded as an improper limitation on the present invention.

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the specific technical solution of the utility model will be further described in detail below in conjunction with the drawings in the embodiment of the utility model. The following embodiments are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0037] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0038] In the embodiments of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0039] In the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0040] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] In order to overcome the problem in the pneumatic comfort system in the prior art described above that when gas enters the air bag, the air flow noise is loud, which affects the comfort of the seat, this embodiment provides a silencer air nozzle structure.

[0042] The utility model discloses a muffler air nozzle structure, such as Figure 1 As shown, it includes a silencer cavity 1 and a silencer 2. The silencer cavity 1 has a chamber and an air inlet end 11 and an air outlet end 12 connected to the chamber. The silencer 2 is assembled on the chamber of the silencer cavity 1, and the silencer 2 has a microporous airway that allows gas to flow between the air inlet end 11 and the air outlet end 12 of the silencer cavity 1.

[0043] In this embodiment, the chamber of the silencer cavity 1 is an airway that allows gas to flow, and the air inlet end 11 and the air outlet end 12 thereon are respectively the two ends of the chamber, and it can also be understood that the air inlet end 11 and the air outlet end 12 of the silencer cavity 1 are connected through the chamber; the silencer 2 is provided with a microporous airway, which can realize the circulation of gas, and the silencer 2 is located on the chamber between the air inlet end 11 and the air outlet end 12, so as to block the air path between the air inlet end 11 and the air outlet end 12 of the silencer cavity 1, so that the gas filled from the air inlet end 11 of the silencer cavity 1 is decelerated through the microporous airway of the silencer 2, and then enters the inflation space of the air bag from the air outlet end 12 of the silencer cavity 1, or the gas entering from the air outlet end 12 is decelerated through the microporous airway of the silencer 2 and then flows out from the air inlet end 11, so as to avoid the rapid flow of gas to generate noise, thereby eliminating the air flow sound.

[0044] In this embodiment, which is a preferred embodiment, the silencer 2 is arranged near the air outlet end 12 of the silencer cavity 1 .

[0045] Specifically, the assembly structure of the silencer 2 and the silencer cavity 1 is as follows: Figure 2-4 As shown:

[0046] An assembly groove 13 is provided on the silencer cavity 1. Specifically, the assembly groove 13 passes through the outer surface of the silencer cavity 1 along a direction intersecting with the direction from the air inlet end 11 to the air outlet end 12 to the chamber of the silencer cavity 1, and the silencer 2 is plugged and assembled to the chamber of the silencer cavity 1 from the assembly groove 13, thereby blocking the air path between the air inlet end 11 and the air outlet end 12, but the gas introduced from the air inlet end 11 can flow to the air outlet end 12 through the microporous airway on the silencer 2, or the gas introduced from the air outlet end 12 can flow to the air inlet end 11 through the microporous airway on the silencer 2.

[0047] Therefore, the silencer air nozzle structure of this embodiment facilitates the plug-in assembly between the silencer 2 and the silencer cavity 1 by providing the assembly groove 13, and further facilitates the maintenance or replacement of the silencer 2.

[0048] In some optional embodiments, a first gap 14 is provided between the side of the assembly groove 13 near the air outlet end 12 of the silencer cavity 1 and the silencer 2, and a second gap 15 is provided on the opposite sides of the assembly groove 13 of the silencer cavity 1 and the silencer 2 to facilitate the assembly and disassembly of the silencer 2.

[0049] In some optional embodiments, in order to make the plug-in assembled silencer 2 more stable, a plurality of positioning protrusions 16 are extended from the side of the assembly groove 13 near the air outlet end 12 of the silencer cavity 1 in the direction of the silencer 2, that is, a plurality of positioning protrusions 16 are provided in the first gap 14, and the plurality of positioning protrusions 16 are abutted against the side of the silencer 2 near the air outlet end 12 of the sound cavity 1, so as to limit the position of the silencer 2 and prevent the silencer 2 from shifting or deforming after long-term use. Moreover, the positioning protrusions 16 are used to position the silencer 2, so that the silencer 2 can fit more closely to the side of the assembly groove 13 near the air inlet end 11, ensuring that the gas entering from the air inlet end 11 can be completely silenced and noise-reduced by the silencer 2 before entering the air outlet end 12, avoiding leakage and vortex generation at the air inlet end 11 before passing through the silencer 2, thereby ensuring the silencer and noise-reduction effect.

[0050] In some optional embodiments, along a direction intersecting with a direction from the air inlet end 11 to the air outlet end 12 , a cross-sectional area of ​​the muffler cavity 1 gradually expands from the air inlet end 11 to the air outlet end 12 .

[0051] In this embodiment, which is a preferred embodiment, the air inlet end 11 of the muffler cavity 1 is flared, and the air outlet end 12 is flat. Therefore, the cross-sectional area of ​​the air outlet end 12 of the muffler cavity 1 is greater than the cross-sectional area of ​​the air inlet end 11.

[0052] In addition, along the direction intersecting the direction from the air inlet end 11 to the air outlet end 12, the cross-sectional area of ​​the muffler 2 is greater than the cross-sectional area of ​​the air inlet end 11, and the cross-sectional area of ​​the air outlet end 12 of the muffler cavity 1 may be greater than or equal to the cross-sectional area of ​​the muffler 2. The muffler 2 may be of any shape and structure. In a preferred embodiment, the muffler 2 may be square or trapezoidal; and the muffler 2 has a plurality of microporous airways along the thickness direction from the air inlet end 11 to the air outlet end 12 for realizing gas circulation.

[0053] The structural design of the air inlet end 11 and the air outlet end 12 of the silencer cavity 1 provided in the embodiment of the utility model, that is, the cross-sectional area of ​​the air outlet end 12 of the silencer cavity 1 and the cross-sectional area of ​​the silencer component 2 are designed to be larger than the cross-sectional area of ​​the air inlet end 11, so as to replace the high-flow rate gas exchange with a large-area gas exchange channel, thereby reducing the speed of the airflow, thereby reducing the effect of air resistance, and at the same time ensuring the air flow rate and the charging and discharging efficiency.

[0054] In some optional embodiments, the cross-sectional area of ​​the air outlet end 12 of the muffler cavity 1 is approximately 3-8 times the cross-sectional area of ​​the air inlet end 11 thereof.

[0055] In some optional embodiments, the silencer 2 includes a silencer sheet, and the microporous airway is connected in the thickness direction of the silencer sheet. The microporous airway can be any form of micro airway, and can be a straight-through airway or an airway connected by multiple bends; specifically, each microporous airway has at least an inlet and an outlet that are connected to the air inlet end 11 and the air outlet end 12, respectively, and the middle section between the inlet and the outlet of the microporous airway can be an airway structure of any shape, including a straight airway with the inlet and the outlet directly connected at both ends, or a curved airway with the inlet and the outlet connected at both ends after multiple bends. Moreover, the number of microporous airways is multiple, and the multiple microporous airways can be independent of each other or have a connected relationship.

[0056] In a specific preferred embodiment, the sound-absorbing sheet can be hot-melt sintered PVC with microporous air channels to achieve better sound-absorbing effect.

[0057] In some optional embodiments, the utility model embodiments further provide a silent air bag, which adopts the above-mentioned silent air nozzle structure to realize inflation and deflation, thereby realizing silent inflation and deflation.

[0058] This embodiment provides a silent air bag, such as Figure 5-7 As shown, it includes a bag body 3 and the above-mentioned silencer air nozzle structure. The bag body 3 has an inflation space that can make the bag body 3 swell when inflated and shrink when deflated. The air outlet end 12 of the silencer air nozzle structure is connected to the inflation space of the bag body 3.

[0059] Specifically, the silencer air nozzle structure includes a silencer cavity 1 and a silencer component 2. The silencer cavity 1 has an air inlet end 11 and an air outlet end 12. The silencer component 2 is assembled on the silencer cavity 1, and the silencer component 2 has a microporous airway that allows gas to flow between the air inlet end 11 and the air outlet end 12 of the silencer cavity 1, and the air outlet end 12 of the silencer cavity 1 is connected to the inflation space of the bag body 3.

[0060] In some optional embodiments, the silent air bag further includes an air pipe 4, which is connected to the air inlet end 11 of the silent air nozzle structure.

[0061] Specifically, the air pipe 4 is communicated with the air inlet end 11 of the muffler cavity 1 .

[0062] The connecting structure between the air pipe 4 and the air inlet end 11 of the silencer cavity 1 is as follows: the air inlet end 11 of the silencer cavity 1 is an end extending outward, and the air pipe 4 can be sleeved outside the air inlet end 11 of the silencer cavity 1, or the air pipe 4 is embedded in the air inlet end 11 of the silencer cavity 1.

[0063] When the bag body 3 is inflated, the gas flows through the air pipe 4 to the air inlet end 11 of the silencer cavity 1 of the silencer air nozzle structure, and then flows through the microporous airway on the silencer 2 in the chamber of the silencer cavity 1, and after being decelerated and silenced by the microporous airway, the gas is discharged from the air outlet end 12 of the silencer cavity 1 and enters the inflation space of the bag body 3, so that the bag body 3 is inflated and expanded, and the inflation efficiency is ensured while silent inflation is achieved. When the bag body 3 is deflated, the gas in the inflation space of the bag body 3 enters the chamber of the silencer cavity 1 from the air outlet end 12 of the silencer cavity 1, flows through the microporous airway on the silencer 2, and after being decelerated and silenced by the microporous airway, the gas flows into the air pipe 4 from the air inlet end 11 of the silencer cavity 1 and then is discharged, so that the deflation efficiency is ensured while silent deflation is achieved.

[0064] In some optional embodiments, the silencer air nozzle structure is disposed in the inflation space of the bag body 3, one end of the air tube 4 extends into the inflation space of the bag body, and the other end of the air tube 4 extends out of the inflation space of the bag body.

[0065] The silent air bag provided in the embodiment of the utility model adopts the above-mentioned silent air nozzle structure for inflation and deflation, thereby avoiding the noise generated by the rapidly flowing gas and eliminating the air flow sound.

[0066] In some optional embodiments, the embodiments of the utility model also provide a pneumatic comfort system, which may be a pneumatic massage system, a pneumatic lumbar support system or a pneumatic side wing support system. The pneumatic comfort system includes: a number of the above-mentioned silent air bags, an air supply unit and a gas distribution device, and the air supply unit is connected to the silent air bag through the gas distribution device.

[0067] Among them, the silent air bag includes a bag body 3, an air pipe 4 and the above-mentioned silencer air nozzle structure, the air outlet end 12 of the silencer air nozzle structure is connected to the inflation space of the bag body 3, the air inlet end 11 of the silencer air nozzle structure is connected to the air pipe 4, and the air pipe 4 is connected to the gas distribution device, the gas distribution device is connected to the air supply unit, and the connection between the air supply unit and the air pipe 4 is controlled by the gas distribution device.

[0068] Specifically, the silencer air nozzle structure includes a silencer cavity 1 and a silencer component 2. The silencer cavity 1 has an air inlet end 11 and an air outlet end 12. The silencer component 2 is assembled on the silencer cavity 1, and the silencer component 2 has a microporous airway that allows gas to flow between the air inlet end 11 and the air outlet end 12 of the silencer cavity 1, and the air outlet end 12 of the silencer cavity 1 is connected to the inflation space of the bag body 3.

[0069] In a preferred embodiment, the gas distribution device includes a gas valve, such as a solenoid valve, and the multiple gas valves corresponding to the multiple silent air bags can be integrated on a gas valve module having a housing; the gas supply unit includes an air pump or a gas storage device, such as a gas storage tank. In other preferred embodiments, the gas distribution device and the gas supply unit can also be a pump-valve integrated structure integrating the gas valve and the air pump.

[0070] The pneumatic comfort system provided by the embodiment of the utility model adopts the above-mentioned silent air bag, so that the entire pneumatic comfort system can achieve silent inflation during operation and has better comfort.

[0071] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A silencer air nozzle structure, characterized in that: The invention comprises a silencer cavity (1) and a silencer element (2), wherein the silencer cavity (1) has a chamber and an air inlet end (11) and an air outlet end (12) connected to the chamber, the silencer element (2) is mounted on the chamber of the silencer cavity (1), and the silencer element (2) has a microporous air passage that allows gas to flow between the air inlet end (11) and the air outlet end (12) of the silencer cavity (1); The silencer cavity (1) is provided with an assembly groove (13) which is in communication with the chamber, and the silencer component (2) is assembled on the assembly groove (13) and placed in the chamber.

2. The muffler air nozzle structure according to claim 1, characterized in that: Taking a cross section along a direction intersecting the direction from the air inlet end (11) to the air outlet end (12), the cross-sectional area of ​​the silencer (2) is greater than the cross-sectional area of ​​the air inlet end (11).

3. The silencing air nozzle structure according to claim 1, characterized in that: Taking a cross section along a direction intersecting the direction from the air inlet end (11) to the air outlet end (12), the cross-sectional area of ​​the air outlet end (12) is greater than the cross-sectional area of ​​the air inlet end (11).

4. The silencing air nozzle structure according to claim 1, characterized in that: The sound-absorbing component (2) comprises a sound-absorbing sheet.

5. A silent air bag, characterized in that: It comprises a bag body (3) and the silencer air nozzle structure according to any one of claims 1 to 4, wherein the air outlet end (12) of the silencer cavity (1) of the silencer air nozzle structure is connected to the inflation space of the bag body (3).

6. The silent airbag according to claim 5, characterized in that: It also comprises an air pipe (4), wherein the air pipe (4) is in communication with an air inlet end (11) of the silencer cavity (1) of the silencer air nozzle structure.

7. The silent airbag according to claim 6, characterized in that: The silencer air nozzle structure is arranged in the inflation space of the bag body (3), and the air pipe (4) extends into the inflation space of the bag body (3).

8. The silent airbag according to any one of claims 5 to 7, characterized in that: The silencing cavity (1) is fixedly connected to the bag body (3).

9. A pneumatic comfort system, characterized in that: include: The silent airbag according to any one of claims 5 to 8; Air supply unit; and a gas distribution device, through which the gas supply unit is communicated with the silent air bag.

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