CN220452133U - Noise reduction structure and piston air pump - Google Patents
Noise reduction structure and piston air pump Download PDFInfo
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- CN220452133U CN220452133U CN202321715206.3U CN202321715206U CN220452133U CN 220452133 U CN220452133 U CN 220452133U CN 202321715206 U CN202321715206 U CN 202321715206U CN 220452133 U CN220452133 U CN 220452133U
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- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 30
- 238000000638 solvent extraction Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000030279 gene silencing Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The application provides a structure of making an uproar and piston air pump fall relates to air pump technical field. The noise reduction structure comprises a shell, an air wall and an air outlet pipe, wherein a partition plate is arranged in the shell and used for partitioning the shell into an air outlet chamber; the air wall is arranged in the air outlet chamber and comprises a wall body, a first baffle and a second baffle which are connected with the wall body and the shell, so that the air outlet chamber is separated into an air collecting area, and a first air channel and a second air channel which are respectively communicated with the air collecting area; one end of the air outlet pipe is arranged in the air outlet chamber, the other end of the air outlet pipe is arranged outside the shell, the air outlet pipe comprises an air inlet hole, and the air inlet hole is arranged on the wall body so that the air outlet pipe is communicated with the second air channel; the length of the first air channel is greater than that of the second air channel, and the tail end of the first air channel is communicated with the second air channel. In order to solve among the prior art and make an uproar to the compressor through amortization sponge, lead to influencing the problem of air compression effect.
Description
Technical Field
The utility model relates to the technical field of air pumps, in particular to a noise reduction structure and a piston air pump.
Background
The piston air pump is a device for continuously compressing air through a piston driving mechanism so as to change the air pressure. At present, a shaded pole motor is generally adopted as a compressor of the piston air pump, and the compressor has the advantages of stable overall structure performance, simple structure, long service life, low cost and the like, but also has certain defects, namely, quite loud noise is easy to generate in the running process.
The existing noise reduction device is improved in a damping mode and a silencing mode generally, the silencing sponge is placed at the joint of an air outlet chamber of exhaust gas and an air outlet pipe, but dust particles are easy to deposit after the silencing sponge is used for a long time, air circulation and compression effects are affected, and the air compression effect of a piston air pump is reduced.
Disclosure of Invention
The embodiment of the utility model aims to solve the technical problem that the noise reduction structure and the piston air pump are provided to solve the problem that in the prior art, noise reduction is carried out on a compressor through a noise reduction sponge, so that the air compression effect is affected.
In a first aspect, an embodiment of the present utility model provides a noise reduction structure, including: the air conditioner comprises a shell, an air wall and an air outlet pipe, wherein a partition plate is arranged in the shell and used for partitioning the shell into an air outlet chamber; the air wall is arranged in the air outlet chamber and comprises a wall body, a first baffle and a second baffle which are connected with the wall body and the shell, so that the air outlet chamber is separated into an air collecting area, and a first air channel and a second air channel which are respectively communicated with the air collecting area; one end of the air outlet pipe is arranged in the air outlet chamber, the other end of the air outlet pipe is arranged outside the shell, the air outlet pipe comprises an air inlet hole, and the air inlet hole is arranged on the wall body so that the air outlet pipe is communicated with the second air channel; the length of the first air channel is longer than that of the second air channel, and the tail end of the first air channel is communicated with the second air channel.
Further, the noise reduction structure further comprises a cover plate, the cover plate is arranged on the air outlet chamber in a covering mode, a third baffle plate and an air inlet pipe are arranged on the cover plate, the third baffle plate is contained in the second air duct, and the third baffle plate is abutted to the partition plate and the shell; the air inlet pipe is accommodated in the air collecting area.
Further, the first baffle, the wall body, the second baffle and the shell form a first air channel; the first baffle and the second baffle are respectively provided with a height difference with the wall body, the height of the first baffle is smaller than that of the wall body, and the height of the second baffle is smaller than that of the wall body.
Further, the wall body deviates from one side of the first air channel, the second baffle deviates from one side of the first air channel and the shell body to form the second air channel, and a gap is formed in the wall body, which is close to the air inlet hole, so that the air flow enters the second air channel.
Further, the wall body comprises a separation section, a guide section and an extension section which are sequentially connected, wherein the separation section is connected with the shell through the first baffle, and the extension section is connected with the shell through the second baffle.
Further, the extension section is arc-shaped, and the arc-shaped concave surface is arranged towards one side facing away from the guide section.
Further, a first buffer area is formed at the joint of the extension section and the second baffle plate in the first air channel.
Further, the first baffle plate is opposite to one side of the first air duct, the separation section is opposite to one side of the second air duct, and the separation plate and the shell form the wind gathering area.
Further, the noise reduction structure is integrally formed.
In a second aspect, an embodiment of the present utility model provides a piston air pump, including: a compressor and noise reducing structure as defined in any one of the above; the compressor is connected with the noise reduction structure.
Compared with the prior art, the noise reduction structure has the beneficial effects that the partition plate separates the shell into the air outlet chamber, the air outlet chamber is internally provided with the air wall, and the wall body of the air wall is respectively connected with the shell through the first baffle plate and the second baffle plate, so that the wall body and the first baffle plate and the second baffle plate jointly separate the first air channel and the second air channel, and because the length of the first air channel is longer than that of the second air channel, the path through which the air flow in the first air channel flows is also longer than that in the second air channel, and when the flow speed of the air flow is the same, the time of the air flow flowing through the first air channel and the second air channel is different, namely the air flow is split. The air flow entering the air outlet pipe is split, disordered air flow can be effectively guided, the air flow cannot totally rush to the air inlet hole of the air outlet pipe, the air flow passing through the air inlet hole is ordered, and accordingly noise at the air inlet hole is reduced.
Drawings
The utility model will now be described in further detail with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a noise reduction structure according to an embodiment of the present utility model;
FIG. 2 is a schematic structural view of a cover plate according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a portion of the A position of FIG. 1;
FIG. 4 is a schematic structural diagram of a noise reduction structure according to an embodiment of the present utility model;
fig. 5 is an enlarged schematic view of a portion of the B position of fig. 4.
The accompanying drawings: 1000. a noise reduction structure; 100. a housing; 101. a gas outlet chamber; 102. a partition plate; 200. an air wall; 201. a first baffle; 202. a second baffle; 203. a wall body; 2031. a separation section; 20311. a notch; 2032. a guide section; 2033. an extension section; 300. a first air duct; 400. a second air duct; 500. a wind gathering area; 600. a gas outlet chamber; 700. an air outlet pipe; 701. an air inlet hole; 800. a first buffer; 900. a cover plate; 901. a third baffle; 902. and an air inlet pipe.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.
An embodiment of the present utility model provides a noise reduction structure 1000, as shown in fig. 1 to 5, the noise reduction structure 1000 includes: the air conditioner comprises a shell 100, an air wall 200 and an air outlet pipe 700, wherein a partition plate 102 is arranged in the shell 100 and is used for partitioning the shell 100 into an air outlet chamber 600; the air wall 200 is arranged in the air outlet chamber 600, and the air wall 200 comprises a wall 203, a first baffle 201 and a second baffle 202 which are connected with the wall 203 and the shell 100, so that the air outlet chamber 600 is separated into an air collecting area 500, and a first air duct 300 and a second air duct 400 which are respectively communicated with the air collecting area 500; one end of the air outlet pipe 700 is arranged in the air outlet chamber 600, the other end of the air outlet pipe 700 is arranged outside the shell 100, the air outlet pipe 700 comprises an air inlet 701, and the air inlet 701 is arranged on the wall 203 so that the air outlet pipe 700 is communicated with the second air duct 400; the length of the first air channel 300 is greater than that of the second air channel 400, and the end of the first air channel 300 is communicated with the second air channel 400.
The partition plate 102 partitions the housing 100 into an air outlet chamber 600, the air outlet chamber 600 is internally provided with an air wall 200, and the wall 203 of the air wall 200 is respectively connected with the housing 100 through the first baffle 201 and the second baffle 202, so that the wall 203 and the first baffle 201 and the second baffle 202 jointly partition the first air channel 300 and the second air channel 400, and because the length of the first air channel 300 is longer than that of the second air channel 400, the path of the air flow in the first air channel 300 is also longer than that of the air flow in the second air channel 400, and when the flow rates of the air flows are the same, the time of the air flow flowing through the first air channel 300 and the second air channel 400 is different, namely the air flow is split. The air flow entering the air outlet pipe 700 is split, so that disordered air flow can be effectively guided, the air flow cannot totally flow to the air inlet hole 701 of the air outlet pipe 700, the air flow passing through the air inlet hole 701 is ordered, and the noise of the air inlet hole 701 is reduced.
It should be noted that, in the embodiment, a part of the air outlet pipe 700 is disposed in the housing 100, a part of the air outlet pipe 700 is disposed outside the housing 100, the air inlet hole 701 on the air outlet pipe 700 is located in the air outlet chamber 600, the air inlet hole 701 is communicated with the second air duct 400, and the end of the first air duct 300 is communicated with the second air duct 400, so that the air flow passing through the first air duct 300 can also enter the air outlet pipe 700 through the second air duct 400.
Specifically, the wall 203 and the first baffle 201 jointly partition the air outlet chamber 600 from the air collecting area 500 for containing air, in this embodiment, on a plane where the wall 203 is located, the heights of the wall 203 and the first baffle 201 are higher, that is, the depth of the air collecting area 500 is deeper, so that more air flows can be contained, and thus, the flow speed of the air flows can be effectively reduced, so that the flow speed of the air flows entering the first air duct 300 and the second air duct 400 is lower, and the noise when the air flows enter the air outlet pipe 700 can be smaller due to the lower flow speed of the air flows.
Referring to fig. 2, 4 and 5, the noise reduction structure 1000 further includes a cover plate 900, the cover plate 900 is covered on the air outlet chamber 101, a third baffle 901 and an air inlet pipe 902 are disposed on the cover plate 900, the third baffle 901 is accommodated in the second air duct 400, and the third baffle 901 abuts against the partition plate 102 and the housing 100; the intake pipe 902 is accommodated within the wind gathering area 500.
The cover plate 900 is covered on the whole air outlet chamber 101, in this embodiment, the edge of the cover plate 900 abutting against the housing 100 is parallel to the direction in which the housing 100 is arranged, and the edge of the cover plate 900 and the edge of the third baffle 901 abutting against the partition plate 102 have a certain inclination to be matched and sealed with the partition plate 102, so that the cover plate 900 can seal the air outlet chamber 101 as much as possible, the air tightness of the air outlet chamber 101 is ensured, and the air entering the air outlet chamber 101 can flow according to the preset first air duct 300 and second air duct 400, so that the diversion effect of the air flow is finally formed.
In this embodiment, the cover plate 900 and the housing 100 are designed to be separated, so that the cover plate can be quickly installed and removed, meanwhile, the separated design can be conveniently manufactured and demolded, and the separated design can be more economical and practical under the condition that the air tightness of the air outlet chamber 101 is not affected.
Specifically, in the embodiment without the air inlet pipe 902, the air flow enters the air outlet chamber 101 through the cover plate 900, but during the air inlet process, the air flow does not enter the air collecting area 500 entirely, so that part of the air flow cannot flow according to the preset flow paths of the first air duct 300 and the second air duct 400, and the flow splitting effect of the noise reduction structure on the air flow is reduced. In order to solve the above problem, the air inlet pipe 902 is disposed on the cover plate 900, so that the external air directly enters the air collecting area 500, and the air flow can move from the air collecting area 500 into the first air duct 300 or the second air duct 400 in a preset manner, so that the air flow finally flows out of the air outlet chamber 101 through the air outlet pipe 700, and the diversion effect of the noise reduction structure can be achieved.
Specifically, the third baffle 901 is accommodated in the second air duct 400, and the third baffle 901 abuts against the housing 100 and the partition plate 102, so that no gap is reserved between the third baffle 901 and the housing 100 and between the third baffle 901 and the partition plate 102, and the air flow in the second air duct 400 is ensured to flow along a preset path. On the other hand, the second air duct 400 is further curved due to the third baffle 901, so that the path of the second air duct 400 is longer, the time of the air flow passing through the second air duct 400 can be effectively prolonged, the flow velocity of the air flow in the second air duct 400 is reduced, the flow velocity of the air flow in the second air duct 400 is lower when the air flow flows into the air outlet pipe 700, and the noise generated when the air flow flows out is smaller.
Referring to fig. 1, 3 and 5, the first baffle 201, the wall 203, the second baffle 202 and the housing 100 constitute a first air duct 300; the first baffle 201 and the second baffle 202 have a height difference from the wall 203, respectively, and the first baffle 201 is smaller than the wall 203 in height, and the second baffle 202 is smaller than the wall 203 in height.
The wall 203 and the housing 100 are connected to the housing 100 by the first baffle 201 and the second baffle 202, and the first baffle 201 and the wall 203 have a height difference, and the second baffle 202 also has a height difference from the wall 203, in this embodiment, the heights of the first baffle 201 and the second baffle 202 are smaller than the height of the wall 203. Because the height of the first baffle 201 is smaller than that of the wall 203, the connection between the first baffle 201 and the wall 203 forms a height difference, which forms an inlet for the air flow from the air collecting area 500 into the first air duct 300, and similarly, the connection between the second baffle 202 and the wall 203 forms a height difference, which forms an outlet for the air flow from the first air duct 300 into the second air duct 400.
Referring to fig. 1, 3 and 5, a side of the wall 203 facing away from the first air channel 300, a side of the second baffle 202 facing away from the first air channel 300, a third baffle 901 and the partition plate 102 form a second air channel 400, and a gap 20311 is formed at a position, close to the air inlet 701, of the wall 203 so that air flows into the second air channel 400.
The wall 203, the second baffle 202, the third baffle 901, the side facing away from the first air channel 300 and the casing 100 together form the second air channel 400, wherein the wall 203 is provided with a notch 20311 near the air inlet 701, the notch 20311 is used for enabling air flow to flow into the second air channel 400 from the air collecting area 500, air flow entering the second air channel 400 from the notch 20311 is partially gushed into the second baffle 202 to follow the air flow flowing out of the first air channel 300, the other part of the air flow is directly discharged from the air inlet 701 through a channel formed by the wall 203 and the third baffle 901, and at the joint of the second baffle 202 and the wall 203, the height of the second baffle 202 is lower than the height of the wall 203 to form an inlet for enabling the air flow in the first air channel 300 to enter the second air channel 400, so that the air flow in the second air channel 400 can enter the air outlet pipe 700 more quickly than the first air channel 300, the air flow is split, the path length of the air flow in the first air channel 300 and the second air channel 400 is different, and the purpose of reducing air inlet noise at the air inlet 701 is achieved.
Specifically, the wall 203 is provided with a notch 20311 near the air intake hole 701, and in this embodiment, the height of the notch 20311 is lower than the height of the wall 203 near the air intake hole 701, and the height of the wall 203 far from the air intake hole 701 at the notch 20311 is the same as or smaller than the height of the notch 20311. In addition, the height of the notch 20311 may be smaller than the height of the other wall 203, and the notch 20311 and the other wall 203 form a "U" structure.
Specifically, the third baffle 901 separates the second air duct 400 into an "S" shape, so that the path of the second air duct 400 is longer, the time for the air flow to pass through the second air duct 400 can be effectively prolonged, the flow velocity of the air flow in the second air duct 400 is reduced, the flow velocity of the air flow in the second air duct 400 is lower when the air flow in the second air duct 400 flows into the air outlet pipe 700, and the noise generated when the air flow out is smaller.
Referring to fig. 3, the wall 203 includes a partition 2031, a guide 2032, and an extension 2033 connected in sequence, the partition 2031 being connected to the housing 100 by a first barrier 201, and the extension 2033 being connected to the housing 100 by a second barrier 202.
In this embodiment, the partition 2031 is connected to the first baffle 201, the first baffle 201 is connected to the housing 100, and the air intake holes 701 are disposed on the partition 2031, thereby partitioning the air outlet chamber 600 from the air collecting region 500. In order to facilitate the air flow in the air collecting region 500 to smoothly enter the second air duct 400, a notch 20311 is provided on the partition 2031 for the air flow to enter the inlet of the second air duct 400. The partition 2031 is used as a part of the wall 203, and is mainly used for separating the first air duct 300 from the wind collecting area 500, separating the second air duct 400 from the wind collecting area 500, and guiding the air flow in the wind collecting area 500 into the first air duct 300.
Specifically, one end of the guiding section 2032 is connected to the separating section 2031, and the other end is connected to the extending section 2033, and the guiding section 2032 is used as a part of the first air duct 300, mainly for separating the first air duct 300 from the second air duct 400, and guiding the airflow in the first air duct 300 to flow through.
Specifically, one end of the extension section 2033 is connected to the guide section 2032, the other end is connected to the second baffle 202, the height of the second baffle 202 is lower than that of the extension section 2033, and the extension section 2033 is used as a part of the first air duct 300 to separate the first air duct 300 from the second air duct 400, and guides the air flow in the first air duct 300 to flow into the second air duct 400.
In the present embodiment, the first air duct 300 is formed by the first baffle 201, the partition section 2031, the guide section 2032, the extension section 2033, the second baffle 202, and the housing 100 together; the second duct 400 is composed of a partition section 2031, a guide section 2032, an extension section 2033, a second baffle 202, and a partition plate 102.
Referring to fig. 3, the extension 2033 is arc-shaped with the convex surface of the arc disposed toward one side of the intake hole 701.
In this embodiment, the extending section 2033 is curved, and the curved convex surface is disposed towards one side of the air inlet 701, that is, the arc of the extending section 2033 is curved away from the second air duct 400, so that when the air flow in the first air duct 300 enters the second air duct 400, the air flow takes a relatively curved path, so that the air flow velocity is relatively low. The arcuately disposed extension 2033 allows for a larger space at the inlet of the second air chute 400, allowing more air to be contained in the second air chute 400. Meanwhile, the air flow can be better guided to enter the second air duct 400, the arc-shaped air duct is bent towards the second baffle 202, the distance between the extension section 2033 and the shell 100 is further, a wider area is formed, more air can be contained, the speed of the air flow passing through the first air duct 300 is slowed down, and the effects of reducing speed and noise are achieved.
Referring to fig. 3 and 5, the first air duct 300 is formed with a first buffer area 800 at the junction of the extension 2033 and the second baffle 202.
Specifically, the extending section 2033 is curved toward the air inlet 701, so that the first air duct 300 at the curved portion of the extending section 2033 is wider, and forms the first buffer area 800 with the housing 100 connected to the surrounding and partition plates 102, and the first buffer area 800 can accommodate more air flow, and slow down the speed of the air flow passing therethrough, so that the air flow has different flow rates between the air flow entering the second air duct 400 from the first air duct 300 and the air flow entering the second air duct 400 from the air collecting area 500, thereby splitting the air flow and reducing the speed, and making the noise when entering the air inlet 701 smaller.
In the present embodiment, the first air duct 300 is formed with a second buffer area at the connection of the guide section 2032 and the extension section 2033.
Specifically, the direction of the wall 203 gradually changes from the extending direction of the guide section 2032 to the extending direction of the extending section 2033 at the connection point with the extending section 2033, where the first air duct 300 is wider and forms a second buffer area with the surrounding housing 100, and the second buffer area can accommodate more air flow and thereby slow down the speed of the air flow passing through, so that the air flow is slowed down when passing through the first air duct 300 at the guide section 2032, and enters the first air duct 300 at the extending section 2033 at a lower flow rate until entering the second air duct 400 at a lower flow rate.
Referring to fig. 1 and 3, a side of the first baffle 201 facing away from the first air duct 300, a side of the partition 2031 facing away from the second air duct 400, the partition plate 102, and the housing 100 constitute a wind collecting region 500.
In this embodiment, on the plane where the wall 203 is located, the heights of the wall 203 and the first baffle 201 are higher, that is, the depth of the wind collecting area 500 is deeper, so that more airflow can be accommodated, and the flow speed of the airflow can be effectively reduced, so that the flow speed of the airflow entering the first air duct 300 and the second air duct 400 is lower, and the noise when the airflow enters the air outlet pipe 700 is smaller due to the lower flow speed of the airflow.
In this new alternative embodiment of the present use, the noise reduction structure 1000 is integrally formed.
The integrated into one piece design can make the integration of structure 1000 of making an uproar stronger, and structural strength is higher, can effectively prolong the life of structure 1000 of making an uproar falls, and the structure 1000 of making an uproar of integrated into one piece design only need design a mould to produce, and the installation degree of difficulty is low, makes the production installation of structure 1000 of making an uproar more simple and convenient.
Of course, besides the above arrangement, the noise reduction structure 1000 can also adopt a design manner of being assembled after being manufactured separately, and after the wall 203, the first baffle 201 and the second baffle 202 are manufactured integrally, the noise reduction structure is fixedly connected with the housing 100, so that the wall 203, the first baffle 201 and the second baffle 202 can be disassembled and replaced.
In a second aspect, an embodiment of the present utility model provides a piston air pump, including: a compressor and noise reducing structure as defined in any one of the above; the compressor is connected with the noise reduction structure.
The piston air pump includes the same structure and advantageous effects as those of the noise reduction structure in the foregoing embodiment. The structure and the beneficial effects of the noise reduction structure have been described in detail in the foregoing embodiments, and are not described herein.
It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present utility model, and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art; all such modifications and substitutions are intended to be included within the scope of this disclosure as defined in the following claims.
Claims (10)
1. A noise reduction structure, comprising:
the shell is internally provided with a partition plate for partitioning the shell into an air outlet chamber;
the air wall is arranged in the air outlet chamber and comprises a wall body, a first baffle and a second baffle which are connected with the wall body and the shell, so that the air outlet chamber is separated into an air collecting area, and a first air channel and a second air channel which are respectively communicated with the air collecting area;
one end of the air outlet pipe is arranged in the air outlet chamber, the other end of the air outlet pipe is arranged outside the shell, the air outlet pipe comprises an air inlet hole, and the air inlet hole is arranged on the wall body so that the air outlet pipe is communicated with the second air channel;
the length of the first air channel is longer than that of the second air channel, and the tail end of the first air channel is communicated with the second air channel.
2. The noise reducing structure of claim 1, wherein: the noise reduction structure further comprises a cover plate, the cover plate is arranged on the air outlet chamber in a covering mode, a third baffle plate and an air inlet pipe are arranged on the cover plate, the third baffle plate is contained in the second air duct, and the third baffle plate is abutted to the partition plate and the shell; the air inlet pipe is accommodated in the air collecting area.
3. The noise reducing structure of claim 2, wherein: the first baffle, the wall body, the second baffle and the shell form a first air channel; the first baffle and the second baffle are respectively provided with a height difference with the wall body, the height of the first baffle is smaller than that of the wall body, and the height of the second baffle is smaller than that of the wall body.
4. A noise reducing structure according to claim 3, wherein: the wall body deviates from one side of the first air channel, the second baffle deviates from one side of the first air channel, the third baffle and the shell form the second air channel, and a gap is formed in the wall body, which is close to the air inlet hole, so that air flow enters the second air channel.
5. The noise reducing structure of claim 1, wherein: the wall body comprises a separation section, a guide section and an extension section which are sequentially connected, wherein the separation section is connected with the shell through the first baffle, and the extension section is connected with the shell through the second baffle.
6. The noise reducing structure of claim 5, wherein: the extension section is arc-shaped, and the curved concave surface is towards deviating from the one side setting of guide section.
7. The noise reducing structure of claim 6, wherein: and a first buffer area is formed at the joint of the extension section and the second baffle plate in the first air channel.
8. The noise reducing structure of claim 5, wherein: the first baffle is opposite to one side of the first air duct, the separation section is opposite to one side of the second air duct, and the separation plate and the shell form the air gathering area.
9. The noise reducing structure of any one of claims 1-8, wherein: the noise reduction structure is integrally formed.
10. A piston air pump comprising a compressor and a noise reducing structure according to any one of claims 1 to 9;
the compressor is connected with the noise reduction structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715206.3U CN220452133U (en) | 2023-06-30 | 2023-06-30 | Noise reduction structure and piston air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715206.3U CN220452133U (en) | 2023-06-30 | 2023-06-30 | Noise reduction structure and piston air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452133U true CN220452133U (en) | 2024-02-06 |
Family
ID=89734265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321715206.3U Active CN220452133U (en) | 2023-06-30 | 2023-06-30 | Noise reduction structure and piston air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452133U (en) |
-
2023
- 2023-06-30 CN CN202321715206.3U patent/CN220452133U/en active Active
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