CN205055108U - A gaseous noise reduction device and breathing machine for on breathing machine - Google Patents
A gaseous noise reduction device and breathing machine for on breathing machine Download PDFInfo
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- CN205055108U CN205055108U CN201520805161.8U CN201520805161U CN205055108U CN 205055108 U CN205055108 U CN 205055108U CN 201520805161 U CN201520805161 U CN 201520805161U CN 205055108 U CN205055108 U CN 205055108U
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- gas
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- decreasing device
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Abstract
The utility model discloses a gaseous noise reduction device and the breathing machine of breathing machine, the former includes casing (11) and the fixed connection resistance wall (12) on casing (11) inner wall, the resistance is cut off (12) and is lain in between the gas access (11a) and gas outlet (11b) of casing (11), and forms passageway that gas access (11a) flow direction gas outlet (11b) was followed to air feed body in casing (11), the latter is provided with the gaseous noise reduction device of this kind on the air flue. The utility model discloses a set up the resistance and cut off in the casing, the cross -sectional area that enables the gas passage constantly undergos mutation on the gas delivery route, consequently can effectively increase gaseous noise and make a round trip to reflect endless time scalar sum probability in the casing, and this can the more gaseous noises of filtering, obtain better noise -reducing effect, the silence grade of improvement breathing machine.
Description
Technical field
This utility model relates to respirator gas noise reduction technique field, and more specifically, this utility model relates to a kind of gas noise-decreasing device on respirator and is provided with the respirator of this kind of gas noise-decreasing device.
Background technology
An important sources of gas noise is exactly the raw noise of gas flow movable property; therefore for the more quiet place of external environment; such as that respirator etc. needs to produce gas and the machinery equipment that gas is flowed; the noise attenuation material of usual meeting setting example silencing cotton in this way on the air flue inwall of equipment, to reduce the impact of gas noise environment to external world.But, because noise attenuation material is limited in one's ability for the weakening of gas noise, therefore this kind of noise-reducing structure cannot obtain ideal noise reduction effect usually, and this problem is being such as the machinery equipment that needs to use under very quiet sleep environment such as respirator embodies particularly outstanding.
Utility model content
This utility model solves on the one hand the poor problem of the noise reduction effect of existing respirator noise-reducing structure, provides a kind of gas noise-decreasing device with better noise reduction effect for respirator.
According to an aspect of the present utility model, provide a kind of gas noise-decreasing device, it comprises housing and the resistance be fixedly connected on the inwall of described housing is cut off, described housing has gas access and gas outlet, described resistance is cut off between described gas access and described gas outlet, and forms supplied gas flows to described gas outlet passage from described gas access in described housing.
Preferably, the neighboring that described resistance is cut off along comprising the fillet edge is connected with the inwall of described housing and the free margins edge be not connected with the inwall of described housing, relatively described fillet edge, described free margins edge on the centerline direction of described gas access closer to described gas access.
Preferably, described resistance cuts off the through hole comprising and cut off body and be arranged on described partition body, and the neighboring of described partition body is connected along enclosing inwall with one of described housing, forms described passage in described housing by described through hole.
Preferably, a described through hole cutting off through described gas outlet and described resistance of the centrage of described gas access.
Preferably, described resistance is cut off and is also comprised reflection guide portion, and described reflection guide portion is connected with described partition body, and the angle between described reflection guide portion and described partition body is greater than 0 degree and is less than 180 degree.
Preferably, described reflection guide portion be arranged on described partition body towards on the surface of described gas access.
Preferably, reflect guide portion described at least one and be arranged on the periphery of described through hole as reflection guide portion of entering the room, and described in reflection guide portion of entering the room extend via the direction of described partition body along the centrage moving closer to corresponding through hole.
Preferably, reflection guide portion is entered the room described in the taper around corresponding through hole.
Preferably, described gas noise-decreasing device is provided with at least two described resistances partitions.
This utility model solves on the other hand the problem that gas noise that existing respirator exists affects user's sleep quality.
According to second aspect of the present utility model, provide a kind of respirator, the air flue of described respirator is connected with above-mentioned gas noise-decreasing device described in any one.
This utility model technique effect is, gas noise-decreasing device of the present utility model cuts off by arranging resistance in housing, the cross-sectional area of gas passage can be made constantly to undergo mutation on gas delivery path, therefore probability and the number of times of gas noise roundtrip circulation in housing can effectively be increased, the smooth housing of this opposed inner walls obviously can the more gas noise of filtering, obtains good noise reduction effect.And respirator of the present utility model owing to being provided with this kind of gas noise-decreasing device on air flue, higher quiet grade therefore can be realized.
Accompanying drawing explanation
What form a part for description drawings describes embodiment of the present utility model, and together with the description for explaining principle of the present utility model.
Fig. 1 is a kind of cross-sectional schematic implementing structure of this utility model gas noise-decreasing device, and wherein the direction of arrow is gas flow direction, is also gas noise flow direction;
Fig. 2 is that schematic diagram is looked on the right side that in Fig. 1, resistance is cut off;
Fig. 3 is that gas noise cuts off the schematic diagram carrying out roundtrip circulation in the cell be separated out in resistance as shown in Figure 1, and in figure, the direction of arrow is the direction of the roundtrip circulation of gas noise.
Fig. 4 is the schematic diagram of a kind of syndeton of gas noise-decreasing device according to this utility model respirator.
Description of reference numerals:
1-gas noise-decreasing device; 11-housing;
11a-gas feed; 11b-gas outlet;
12-resistance is cut off; 121-cuts off body;
122-through hole; 123-reflects guide portion;
123a-enters the room reflection guide portion; 13-cell;
2-blower fan; 3-silica gel sealing ring.
Detailed description of the invention
Various exemplary embodiment of the present utility model is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to this utility model and application or use.
The technology and equipment known for person of ordinary skill in the relevant may not discuss in detail, but in the appropriate case, described technology and equipment should be regarded as a part for description.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
The poor problem of noise reduction effect that this utility model exists to solve existing gas noise-reducing structure, propose a kind of gas noise-decreasing device for respirator, as depicted in figs. 1 and 2, this gas noise-decreasing device 1 comprises housing 11 and the resistance be fixedly connected on the inwall of housing 11 cuts off 12, this housing 11 has gas access 11a and gas outlet 11b, gas noise-decreasing device 1 is connected on air flue by gas access 11a and gas outlet 11b, wherein, this housing 11 can be formed as body, to connect maintenance air flue uniformity in appearance after on air flue, this resistance cuts off 12 between gas access 11a and gas outlet 11b, can first flow out in housing 11 via gas outlet 11b again through the noise abatement process of resistance partition 12 to make the gas entered in housing 11, for this reason, this gas noise-decreasing device 1 should form supplied gas flows to gas outlet 11b passage from gas access 11a in housing 11.
The noise abatement principle of this utility model gas noise-decreasing device 1 is: be equivalent to form more cell 13 in housing 11 owing to arranging resistance partition 12 on the inwall of housing 11, namely this cell 13 is cut off 12 spaces formed with the inwall of housing 11 by resistance, this can make the cross-sectional area of gas passage constantly undergo mutation on gas delivery path, and then realize resistant noise-reducing, therefore, as shown in Figure 3, this kind of structure effectively can increase probability and the number of times that gas noise carries out roundtrip circulation in housing 11, the smooth housing of this opposed inner walls obviously can the more gas noise of filtering, obtain good noise reduction effect.
Above-mentioned resistance cuts off 12 can adopt any structure that the cross-sectional area of gas passage can be made constantly to undergo mutation on gas delivery path, such as, in a specific embodiment of the present utility model, this resistance cuts off the neighboring of 12 along comprising the fillet edge be connected with the inwall of housing 11 and the free margins edge be not connected with the inwall of housing, and, this free margins is along being preferably relative fillet edge on the centerline direction of gas access 11a closer to gas access 11a, be conducive to more gas to guide to enter in cell 13 like this to participate in reflection, thus raising noise reduction.Again such as, in a specific embodiment of the present utility model, this resistance is cut off 12 and is comprised the through hole 122 cutting off body 121 and be arranged on partition body 121, the neighboring cutting off body 121 is connected along enclosing inwall with one of housing 11, and form above-mentioned passage by this through hole 122 in housing 11, wherein, the connection of enclosing between inwall cutting off body 121 and housing 11 is preferably tightly connected, and is conducive to more gas to guide to enter in cell 13 like this to participate in reflection; In addition, this through hole 122 can be one, also can be more than one, and through hole 122 is not limited to the center being arranged on and cutting off body 121, surrounds as long as the surrounding of through hole 122 is cut off body 121.
Consider the through-rate of gas noise reduction effect and gas, the centrage of this gas access 11a preferably cuts off a through hole 122 of 12 through gas outlet 11b and resistance, the centrage that the centrage of this gas access 11a particularly cuts off a through hole 122 of 12 with the centrage of gas outlet 11b and resistance overlaps.
The active area of the participation gas noise reflection of 12 is cut off in order to increase resistance as much as possible, to increase probability and the number of times that gas noise carries out roundtrip circulation in housing 11 further, as depicted in figs. 1 and 2, this resistance cuts off 12 only can arrange a through hole 122, and this through hole 122 is preferably arranged on the centre cutting off body 121, to make partition body 121 in the annular of surrounding this through hole 122.
The active area cutting off the participation gas noise reflection of 12 in order to increase resistance as much as possible equally, to increase probability and the number of times that gas noise carries out roundtrip circulation in housing 11 further, in a specific embodiment of the present utility model, as depicted in figs. 1 and 2, this resistance cuts off 12 can also comprise reflection guide portion 123, and this reflection guide portion 123 and the angle cut off between body 121 are greater than 0 degree, are less than 180 degree, and be preferably that acute angle or obtuse angle connect.
On the basis of embodiment that reflection guide portion 123 is set, its guiding function can be played largely to make reflection guide portion 123, in a specific embodiment of the present utility model, as depicted in figs. 1 and 2, this reflection guide portion 123 be arranged on cut off body 121 towards on the surface of gas access 11a.
On the basis of embodiment that reflection guide portion 123 is set, enter as much as possible to be cut off in 12 and the cell 13 that surrounds of the inwall of housing 11 by resistance to enable gas noise and carry out roundtrip circulation, as depicted in figs. 1 and 2, at least one reflection guide portion 123 is preferably made to be arranged on the periphery of through hole 122 as the reflection guide portion 123a that enters the room, and this reflection guide portion 123a that enters the room is extended via the direction of described partition body 121 along the centrage moving closer to corresponding through hole 122, such as, this reflection guide portion 123a that enters the room can extend via the direction of the edge of corresponding through hole 122 along the centrage moving closer to corresponding through hole 122, like this, the partial occlusion of guide portion 123a is reflected because gas can be subject to entering the room in the process flowing to through hole 122, again because namely gas itself have the trend to surrounding volume diffusion, therefore, gas noise just can enter into more by resistance cut off 12 and the cell 13 that surrounds of the inwall of housing 11 carry out roundtrip circulation, and reduce the amount of direct via through holes 122 outflow.On this basis, in order to improve the effect of the reflection guide portion 123a that enters the room further, as depicted in figs. 1 and 2, this reflection guide portion 123a that enters the room, preferably in the taper around corresponding through hole 122, forms noise-damping bowl.
In order to improve the noise reduction effect of gas noise-decreasing device 1 further, this gas noise-decreasing device 1 preferably includes at least two resistances and cuts off 12.And, cut off 12 in resistance comprise partition body 121 and be arranged in the embodiment of the through hole 122 cut off on body 121, all resistances are cut off 12 and are preferably arranged in parallel between gas access 11a and gas outlet 11b, this is conducive to the noise abatement stability improving gas noise-decreasing device 1, it is also preferred that making each resistance cut off 12 arranges at equal intervals, this noise abatement being conducive to improving gas noise-decreasing device 1 is harmonious.
In embodiment shown in Fig. 1 to Fig. 3, this gas noise-decreasing device 1 is provided with multiple resistance and cuts off 12, each resistance is cut off 12 and is provided with a through hole 122 and a reflection guide portion 123, and this reflection guide portion 123 is the reflection guide portion 123a that enters the room around through hole 122.
This utility model additionally provides a kind of respirator on the basis of above-mentioned gas noise-decreasing device 1, the air flue being specially this respirator is connected with gas noise-decreasing device 1 of the present utility model, gas noise-decreasing device 1 can be connected on air flue by pipe joint by this, this air flue can be blower fan air inlet air flue, air flue given vent to anger by blower fan, gas conveying air flue at least one air flue.
Fig. 4 shows the embodiment of giving vent to anger on air flue gas noise-decreasing device 1 being connected to blower fan 2, wherein, blower fan 2 can be connected by silica gel sealing ring 3 with gas noise-decreasing device 1, and silica gel sealing ring 3 can ensure that blower fan 2 gas leak phenomenon can not occur with the junction of gas noise-decreasing device 1.In addition, blower fan 2 also can be connected with gas noise-decreasing device 1 by other means, such as, cross tight fit, the mode such as be threaded.
The various embodiments described above primary focus describes the difference with other embodiments, but it will be clear for those skilled in the art that the various embodiments described above can be used alone as required or be combined with each other.
Although be described in detail specific embodiments more of the present utility model by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, when not departing from scope and spirit of the present utility model, above embodiment can be modified.Scope of the present utility model is limited by claims.
Claims (10)
1. the gas noise-decreasing device (1) for respirator, it is characterized in that, comprise housing (11) and be fixedly connected on resistance partition (12) on the inwall of described housing (11), described housing (11) has gas access (11a) and gas outlet (11b), described resistance is cut off (12) and is positioned between described gas access (11a) and described gas outlet (11b), and forms supplied gas flows to described gas outlet (11b) passage from described gas access (11a) in described housing (11).
2. gas noise-decreasing device (1) according to claim 1, it is characterized in that, described resistance cuts off the neighboring of (12) along comprising the fillet edge is connected with the inwall of described housing (11) and the free margins edge be not connected with the inwall of described housing (11), relatively described fillet edge, described free margins edge on the centerline direction of described gas access (11a) closer to described gas access (11a).
3. gas noise-decreasing device (1) according to claim 1, it is characterized in that, described resistance is cut off (12) and is comprised the through hole (122) cutting off body (121) and be arranged on described partition body (121), the neighboring of described partition body (121) is connected along enclosing inwall with one of described housing (11), forms described passage in described housing (11) by described through hole (122).
4. gas noise-decreasing device (1) according to claim 3, it is characterized in that, the centrage of described gas access (11a) cuts off a described through hole (122) of (12) through described gas outlet (11b) and described resistance.
5. gas noise-decreasing device (1) according to claim 3, it is characterized in that, described resistance is cut off (12) and is also comprised reflection guide portion (123), described reflection guide portion (123) is connected with described partition body (121), and the angle between described reflection guide portion (123) and described partition body (121) is greater than 0 degree and is less than 180 degree.
6. gas noise-decreasing device (1) according to claim 5, is characterized in that, described reflection guide portion (123) be arranged on described partition body (121) towards on the surface of described gas access.
7. gas noise-decreasing device (1) according to claim 6, it is characterized in that, reflect guide portion (123) described at least one and be arranged on the periphery of described through hole (122) as reflection guide portion (123a) of entering the room, and described in reflection guide portion (123a) of entering the room extend via the direction of described partition body (121) along the centrage moving closer to corresponding through hole (122).
8. gas noise-decreasing device (1) according to claim 7, is characterized in that, described in enter the room reflection guide portion (123a) in around the taper of corresponding through hole (122).
9. gas noise-decreasing device (1) according to any one of claim 1 to 8, is characterized in that, described gas noise-decreasing device (1) is provided with at least two described resistances and cuts off (12).
10. a respirator, is characterized in that, the air flue of described respirator is connected with the gas noise-decreasing device (1) according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805161.8U CN205055108U (en) | 2015-10-16 | 2015-10-16 | A gaseous noise reduction device and breathing machine for on breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805161.8U CN205055108U (en) | 2015-10-16 | 2015-10-16 | A gaseous noise reduction device and breathing machine for on breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205055108U true CN205055108U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520805161.8U Active CN205055108U (en) | 2015-10-16 | 2015-10-16 | A gaseous noise reduction device and breathing machine for on breathing machine |
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| Country | Link |
|---|---|
| CN (1) | CN205055108U (en) |
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- 2015-10-16 CN CN201520805161.8U patent/CN205055108U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100036 No. 110, A block, 115 office building, Fucheng Road, Haidian District, Beijing. Patentee after: Beijing Ka Yip Yee medical Polytron Technologies Inc Address before: 100036 No. 110, A block, 115 office building, Fucheng Road, Haidian District, Beijing. Patentee before: Beijing delightful harmony Jia Ye medical science and technology company limited |