CN210250379U - Noise reduction device of negative pressure machine - Google Patents
Noise reduction device of negative pressure machine Download PDFInfo
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- CN210250379U CN210250379U CN201920776664.5U CN201920776664U CN210250379U CN 210250379 U CN210250379 U CN 210250379U CN 201920776664 U CN201920776664 U CN 201920776664U CN 210250379 U CN210250379 U CN 210250379U
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Abstract
The utility model discloses a noise reduction device of a negative pressure machine, which comprises a noise reduction base, the negative pressure machine erected on the noise reduction base, a fan cover covered on the negative pressure machine and fastened with the noise reduction base, and a shock absorption seat arranged between the negative pressure machine and the noise reduction base; a first noise reduction air channel for air flow to enter and exit in a spiral mode is arranged in the negative pressure machine, and a second noise reduction air channel for noise reduction of a motor of the negative pressure machine is arranged in the noise reduction base. With this structural design, through the setting that falls the wind channel of making an uproar of the second in the base of making an uproar, the noise when the air current air inlet goes out the wind in the time of can effectively reducing the motor heat transfer, in addition, can also effectively reduce the noise when the negative pressure machine air current spirals the business turn over through the first setting that falls the wind channel of making an uproar, the utility model discloses it is effectual to fall the shock attenuation, can effectively reduce the noise pollution of negative pressure machine at the operation in-process.
Description
Technical Field
The utility model relates to a rehabilitation apparatus technical field especially relates to a device of making an uproar falls in negative pressure machine.
Background
In the prior art, when a bed pan erected on a sickbed is cleaned, negative pressure generated by a negative pressure machine is needed to be used for implementing the cleaning, and the negative pressure machine on the market is lack of an effective noise reduction device, so that the noise is extremely high in the operation process of the machine, and great interference is brought to a patient, and therefore the cleaning is certainly improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of making an uproar falls in negative pressure machine, this device of making an uproar falls in negative pressure machine structural design is reasonable, can be to playing better vibration/noise reduction effect.
To achieve the purpose, the utility model adopts the following technical proposal:
a noise reduction device of a negative pressure machine comprises a noise reduction base, the negative pressure machine erected on the noise reduction base, a fan cover covered on the negative pressure machine and fastened with the noise reduction base, and a shock absorption seat arranged between the negative pressure machine and the noise reduction base; a first noise reduction air channel for air flow to enter and exit in a spiral mode is arranged in the negative pressure machine, and a second noise reduction air channel for noise reduction of a motor of the negative pressure machine is arranged in the noise reduction base.
The negative pressure machine comprises a motor, a first shock pad sleeved on the periphery of the motor, a second shock pad arranged on the top of the motor, a motor cover covering the lower end of the motor, and an air guide cover covering the upper end of the motor and fastened with the motor cover, wherein a cavity of the air guide cover and a cavity of the motor cover are arranged in an isolated mode through the first shock pad.
The wind guide cover comprises a wind guide cover and is characterized in that an annular flange is convexly arranged in the middle of the upper surface of the wind guide cover, a first air inlet hole for air flow to flow into the wind guide cover through a first air inlet of the wind cover in a spiral mode is uniformly distributed at the root of the annular flange, the first air inlet hole is communicated with a second air inlet hole formed in the upper surface of a motor through a through hole in a second shock pad, a first exhaust hole is formed in the outer peripheral surface of the motor, air flow discharged into the wind guide cover flows into a second exhaust hole of the wind cover, and sound absorption cotton is arranged in the wind cover.
The noise reduction base is provided with an exhaust passage communicated with the fan cover in a penetrating mode.
The shock absorption seat comprises a shock absorption plate and a plurality of shock absorption columns which are vertically and uniformly distributed on the upper surface of the shock absorption plate, and the upper end surfaces of the partition plates are matched with the lower bottom surface of the motor cover respectively.
The lower bottom surface of the motor cover is provided with a motor air inlet and a motor air outlet, the motor air inlet and the motor air outlet are arranged in the through hole of the shock absorption seat through penetration, and the through hole is respectively connected with the second noise reduction air channel in a penetrating manner.
The second noise reduction air channel comprises a motor air inlet noise reduction air channel and a motor air outlet noise reduction air channel which are arranged in the cavity of the noise reduction base at intervals, the motor air inlet noise reduction air channel and the motor air outlet noise reduction air channel are arranged in the noise reduction base in an isolated mode through partition plates 13 arranged in the noise reduction base, and air deflectors for prolonging the spiral inlet and outlet paths of air flow are arranged in the motor air inlet noise reduction air channel and the motor air outlet noise reduction air channel at intervals.
The noise reduction base comprises an upper shell provided with the partition board and the air guide plate, and a bottom cover matched with the upper shell, wherein the bottom cover is provided with an air outlet and an air inlet which are respectively communicated with the motor air inlet noise reduction air duct and the motor air outlet noise reduction air duct in a penetrating manner.
The utility model has the advantages that: the utility model provides a noise reduction device of a negative pressure machine, which comprises a noise reduction base, the negative pressure machine erected on the noise reduction base, a fan cover covered on the negative pressure machine and fastened with the noise reduction base, and a shock absorption seat arranged between the negative pressure machine and the noise reduction base; a first noise reduction air channel for air flow to enter and exit in a spiral mode is arranged in the negative pressure machine, and a second noise reduction air channel for noise reduction of a motor of the negative pressure machine is arranged in the noise reduction base. With this structural design, through the setting that falls the wind channel of making an uproar of the second in the base of making an uproar, the noise when the air current air inlet goes out the wind in the time of can effectively reducing the motor heat transfer, in addition, can also effectively reduce the noise when the negative pressure machine air current spirals the business turn over through the first setting that falls the wind channel of making an uproar, the utility model discloses it is effectual to fall the shock attenuation, can effectively reduce the noise pollution of negative pressure machine at the operation in-process.
Drawings
Fig. 1 is an exploded view of the noise reduction device of the negative pressure machine of the present invention.
Fig. 2 is an assembly view of fig. 1.
FIG. 3 is an exploded view of the noise reduction mount of FIG. 2.
Fig. 4 is a top view of fig. 2.
Fig. 5 is a cross-sectional view a-a in fig. 4.
Figure 6 is an isometric view of the wind scooper of figure 1.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
With reference to fig. 1 to 6, the present embodiment provides a noise reduction device for a negative pressure machine, which includes a noise reduction base 1, a negative pressure machine 2 erected on the noise reduction base 1, a fan housing 3 covering the negative pressure machine 2 and fastened to the noise reduction base 1, and a damper base 4 disposed between the negative pressure machine 2 and the noise reduction base 1; a first noise reduction air channel for air flow to enter and exit in a spiral mode is arranged in the negative pressure machine 2, and a second noise reduction air channel for noise reduction of a motor of the negative pressure machine 2 is arranged in the noise reduction base 1.
Specifically, in this embodiment, the negative pressure machine 2 includes the motor 21, a first shock pad 22 sleeved on the periphery of the motor 21, a second shock pad 23 disposed on the top of the motor 21, a motor cover 24 covering the lower end of the motor 21, and an air guide cover 25 covering the upper end of the motor 21 and fastened to the motor cover 24, wherein a cavity of the air guide cover 25 and a cavity of the motor cover 24 are isolated from each other by the first shock pad 22.
Further, as shown in fig. 1, 5 and 6, an annular flange 251 is convexly disposed in the middle of the upper surface of the air guiding cover 25, first air inlets 252 for air to flow into the air guiding cover 25 through the first air inlet 31 of the air cover 3 in a spiral manner are uniformly distributed at the root of the annular flange 251, the first air inlets 252 are connected to the second air inlets 211 provided with the upper surface of the motor 21 in a penetrating manner through holes formed in the second damping pad 23, first air outlets 212 are disposed on the outer circumferential surface of the motor 21, second air outlets 253 for air to flow into the air guiding cover 25 are uniformly distributed on the outer circumferential surface of the air guiding cover 25 and flow into the air cover 3, sound absorbing cotton is disposed in the air cover 3, and an air outlet channel communicated with the air cover 3 is disposed through the noise reduction base 1.
With the first noise reduction air duct designed by the above structure, the specific flow path of the air flow can refer to the path shown by the arrow in fig. 5, and it needs to be further explained, after the air flow flows in from the first air inlet 31, because the annular flange 251 at the top of the air guiding cover 25 and the flange at the inner bottom surface of the air cover 3 form a sealed chamber, and the first air inlet holes 252 are uniformly distributed at the root of the inner side wall of the annular flange 251, at this time, the air flow can be coiled in the chamber, then enters the chamber formed by the second shock absorption pad 23 and the air guiding cover 25 through the first air inlet holes 252, and finally flows into the motor through the second air inlet holes 211, then, the air flows into the air guiding cover 25 from the first air outlet 212 on the outer peripheral surface of the motor, and is influenced by the internal structure of the air guiding cover 25, and the air flows into the cavity of the air hood 3 from the second air outlet 253 of the air guiding cover 25 in the circling process, and then flows out through an air outlet channel penetrating through the noise reduction base. The first wind channel of making an uproar that falls of design like this, great extension wind channel length, the soundproof cotton who sets up in fan housing 3 simultaneously to make along the first wind channel of making an uproar that falls spiral inflow outflow air current noise greatly reduced.
Further, the damper 4 in this embodiment includes a damper plate, and a plurality of damping pillars 41 vertically and uniformly distributed on the upper surface of the damper plate, the upper end surfaces of the plurality of damping pillars 41 are respectively matched with the lower bottom surface of the motor cover 24, the lower bottom surface of the motor cover 24 is provided with a motor air inlet and a motor air outlet, the motor air inlet and the motor air outlet are respectively communicated with the second noise reduction air duct through holes penetrating the damping seat 4, the second noise reduction air channel comprises a motor air inlet noise reduction air channel 11 and a motor air outlet noise reduction air channel 12 which are arranged in the cavity of the noise reduction base 1 at intervals, the motor air inlet noise reduction duct 11 and the motor air outlet noise reduction duct 12 are isolated by a partition plate 13 arranged in the noise reduction base 1, air deflectors 14 for prolonging the spiral inlet and outlet paths of air flow are arranged in the motor air inlet noise reduction air duct 11 and the motor air outlet noise reduction air duct 12 at intervals. Further specifically, the noise reduction base 1 includes an upper shell 15 provided with the partition plate 13 and the air deflector, and a bottom cover 16 matched with the upper shell 15, wherein the bottom cover 16 is provided with an air outlet 161 and an air inlet 162 which are respectively communicated with the motor air inlet noise reduction duct 11 and the motor air outlet noise reduction duct 12 in a penetrating manner.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. The utility model provides a device of making an uproar falls in negative pressure machine which characterized in that: the noise reduction device comprises a noise reduction base, a negative pressure machine erected on the noise reduction base, a fan cover covering the negative pressure machine and fastened with the noise reduction base, and a shock absorption seat arranged between the negative pressure machine and the noise reduction base; a first noise reduction air channel for air flow to enter and exit in a spiral mode is arranged in the negative pressure machine, and a second noise reduction air channel for noise reduction of a motor of the negative pressure machine is arranged in the noise reduction base.
2. The negative-pressure machine noise reduction device according to claim 1, characterized in that: the negative pressure machine comprises a motor, a first shock pad sleeved on the periphery of the motor, a second shock pad arranged on the top of the motor, a motor cover covering the lower end of the motor, and an air guide cover covering the upper end of the motor and fastened with the motor cover, wherein a cavity of the air guide cover and a cavity of the motor cover are arranged in an isolated mode through the first shock pad.
3. The negative-pressure machine noise reduction device according to claim 2, characterized in that: the wind guide cover is characterized in that an annular flange is convexly arranged in the middle of the upper surface of the wind guide cover, a first air inlet hole for enabling air flow to flow into the wind guide cover through a first air inlet of the wind cover in a spiral mode is uniformly distributed at the root of the annular flange, the first air inlet hole is communicated with a second air inlet hole formed in the upper surface of the motor through a through hole in the second shock absorption pad, a first exhaust hole is formed in the outer peripheral surface of the motor, air flow discharged into the wind guide cover flows into a second exhaust hole of the wind cover, and sound absorption cotton is arranged in the wind cover.
4. The negative-pressure machine noise reduction device according to claim 1, characterized in that: the noise reduction base is provided with an exhaust passage communicated with the fan cover in a penetrating way.
5. The negative-pressure machine noise reduction device according to claim 2, characterized in that: the shock mount includes the shock attenuation board to and perpendicular equipartition in a plurality of shock attenuation posts of shock attenuation board upper surface, it is a plurality of the up end of shock attenuation post respectively with the lower bottom surface of motor cover cooperatees.
6. The negative-pressure machine noise reduction device according to claim 2, characterized in that: the lower bottom surface of motor cover is provided with motor air intake and motor air exit, motor air intake and motor air exit are seted up through running through in the through-hole of shock mount respectively with the wind channel through connection of making an uproar falls in the second.
7. The negative-pressure machine noise reduction device according to claim 2, characterized in that: the second noise reduction air channel comprises a motor air inlet noise reduction air channel and a motor air outlet noise reduction air channel which are arranged in the cavity of the noise reduction base at intervals, the motor air inlet noise reduction air channel and the motor air outlet noise reduction air channel are arranged in the noise reduction base in an isolated mode through partition plates, and air deflectors for prolonging the spiral inlet and outlet paths of air flow are arranged in the motor air inlet noise reduction air channel and the motor air outlet noise reduction air channel at intervals.
8. The negative-pressure machine noise reduction device according to claim 7, wherein: the noise reduction base comprises an upper shell provided with the partition board and the air guide plate, and a bottom cover matched with the upper shell, wherein the bottom cover is provided with an air outlet and an air inlet which are communicated with the motor air inlet noise reduction air channel and the motor air outlet noise reduction air channel respectively in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776664.5U CN210250379U (en) | 2019-05-27 | 2019-05-27 | Noise reduction device of negative pressure machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776664.5U CN210250379U (en) | 2019-05-27 | 2019-05-27 | Noise reduction device of negative pressure machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210250379U true CN210250379U (en) | 2020-04-07 |
Family
ID=70038792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920776664.5U Active CN210250379U (en) | 2019-05-27 | 2019-05-27 | Noise reduction device of negative pressure machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210250379U (en) |
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2019
- 2019-05-27 CN CN201920776664.5U patent/CN210250379U/en active Active
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