RU2763584C1 - Air cleaner in the local area - Google Patents

Abstract

FIELD: air purification and ventilation.

SUBSTANCE: invention relates to technological processes related to the purification and ventilation of air, namely to devices for air purification, removal of gases, odors, smoke evacuation, etc. in the local area, for example, a nail technician, stylist, beautician, etc. The effect is achieved due to the fact that an air purifier in a local area is declared, containing a housing, a fan, a flexible air duct, an adjustable stand, a ring-shaped lamp and a filter located inside an insulating casing, and elastic gaskets are located between it and the inner side walls of the housing, on the support platform the fan is fixed, and the support platform itself is fixed through radial stops, characterized in that the insulating casing is made of plastic and fixed to the inner side of the upper part of the housing, and with its lower part it is made with a tapering and ending round hole, the ends of which are fixed close to the round hole in the bottom of the body.

EFFECT: increasing vibration and noise insulation protection.

15 cl, 8 dwg

Description

The invention relates to technological processes associated with air purification and ventilation, namely, devices for air purification, removal of gases, odors, smoke evacuation, etc. in a local area, for example, a nail service master, stylist, beautician, etc. [A45D29/00, A47L7/02, B08B15/00, B08B15/04, F24F7/007, F24F13/20].

Known VACUUM CLEANER FOR MANICURE/PEDICURE ROOM [RU195199 (U1), publ.: 01/17/2020], characterized in that it contains a housing with a compartment for a drive fan located inside and a dust collection chamber; flexible air duct, fixed by means of an adjustable tripod on the body and connected by its channel to the dust collection chamber; and a luminaire pivotally mounted on a tripod and connected to a flexible duct channel; moreover, a cylindrical filter is installed in the dust collection chamber, and the lamp is made annular, in the center of which the end of the flexible air duct is installed, and the lamp is made with the possibility of adjusting the illumination, while the filter is attached to the housing using a pressure plate and a sealing ring.

The main technical problem of the analog is low vibration and noise isolation, since the fan is located in a special compartment, the casing of which is rigidly fixed in the lower part of the case to the internal partition, which is in rigid contact with the inner walls of the case. In addition, the air flow coming from the filter passes directly into the interior of the housing and is in no way isolated from the walls of the housing.

The closest analogue is an air purifier in a local area (RU200961U, published: 11/20/2020), containing a housing, a fan unit with a fan, a cylindrical filter, a flexible air duct, an adjustable stand, an annular lamp, characterized in that a filtration unit is mounted inside the housing to the hole , in the lower part of which a fan unit with a fan is mounted, the inlet of the filtration unit is aligned with the hole in the top cover of the housing and with the hole in the hinged cover of the housing mounted above the top cover, the filter is mounted in the filtration unit through the inlet of the said unit and rests on the top cover corps.

The prototype describes that vibration isolation is mounted between the filtration unit and the housing, to the casing of which a support platform is fixed, on which the fan is fixed.

In the prototype, vibration and noise isolation is provided better than in the previous analogue, since the air flow coming from the filter passes directly into the inner space of the filtration unit housing, thereby, it is isolated from the housing walls.

However, the design of the vibration-noise isolation system is not described.

The technical problem of the prototype is also that the vibration and noise isolation in it is also imperfect.

This is explained as follows. The filtration unit and the fan unit are represented by separate insulating casings, the entire vibration protection of which is supported by elastic gaskets against the inner and upper walls of the housing.

In this case, the fan unit is rigidly supported on the bottom of the case, the filter unit is rigidly supported on the fan unit itself, and the fan is rigidly supported on radial stops, which are based on the walls of the fan unit.

Thus, the main load of the weight of the fan unit and the filtration unit is carried by the bottom, which easily transmits vibrations and fur coats from them.

The objective of the invention is to create such an air purifier in a local area, which provides effective vibration and noise isolation.

The technical result of the invention is to increase the vibration and noise protection.

The specified technical result is achieved due to the fact that an air purifier in a local area is claimed, containing a housing, a fan, a flexible air duct, an adjustable stand, an annular lamp and a filter placed inside an insulating casing, and elastic gaskets are located between it and the inner side walls of the casing, on the fan is fixed to the support platform, and the support platform itself is fixed through radial stops, characterized in that the insulating casing is made of plastic and is fixed to the inner side of the upper part of the case, and its lower part is made with a tapering and ending round hole, the ends of which are fixed against the round hole in the bottom of the case.

Preferably, the radial stops are made of plastic and fixed with their ends to the tapering part of the insulating casing. In this case, the location of the radial stops can be performed symmetrically with respect to the axis of rotation of the fan.

Preferably, the radial stops are made in the form of the same type of plates in the form of a polygon, in which the smallest of the sharp corners is adjacent to the support area. At the same time, each of such radial stops can be fixed with its end to the supporting surface or to the tapering part of the insulating casing with a slope to one side.

Preferably, elastic spacers are installed between the outer walls of the insulating casing and the inner side walls of the housing at the points of the shortest distance between them.

Preferably, the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which are fixed by shrinkage inside the diameter of the round hole in the bottom of the housing. At the same time, the ventilation grill installed at the bottom of the hole in the bottom of the housing may have an annular protrusion on the inside, the outer diameter of which corresponds to the diameter of the round hole of the tapered part of the insulating casing.

It is possible that the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which rest on the edges of the round hole in the bottom of the housing. At the same time, it is preferable that an elastic annular gasket is installed at the edges of the ends of the round hole of the insulating casing.

Preferably, in addition to its lower part, the insulating casing is made cylindrical and consists of inner and outer cavities, wherein a filter is placed in the inner cavity, and the outer cavity interacts with the housing through elastic gaskets. In this case, the fan can be placed inside a plastic casing, in which the upper part of the intake hole is adjacent to the lower part of the inner cavity of the insulating casing. In this case, the filter can be installed in the inner cavity of the insulating casing with the filter cover resting on its upper walls.

It is possible that the inlet for installing the filter in the insulating casing is aligned with the hole in the upper cover of the housing and with the hole in the hinged cover of the housing, while the filter rests on the upper cover of the housing.

It is acceptable that the upper part of the filter is fixed to the upper part of the housing by means of a pressure plate and fixing screws through a rubber gasket.

Brief description of the drawings

Figure 1 shows the air cleaner device (side view in section) for an embodiment where the ends of the tapered part of the insulating casing are fixed by shrinking inside the diameter of the round opening of the bottom of the casing.

Figure 2 shows the device of the air purifier (view in the volume of the collection).

Figure 3 shows the air purifier device (bottom view of the assembly).

Figure 4 shows the device of the air purifier (bottom view with the ventilation grille removed).

Figure 5 shows the air purifier device (bottom view with the ventilation grille and bottom removed).

Fig. 6 shows an example of filter replacement for an air purifier with pressure cover (3D view with pressure cover lifted, filter removed and no stand).

Fig. 7 shows an example of filter replacement for an air purifier with a pressure plate (3D view with the filter removed and without the stand).

Figure 8 shows the air purifier device (side view in section) for an embodiment where the ends of the tapered part of the insulating casing rest on the edges of the round opening of the bottom of the casing, and an elastic ring gasket is installed on the edges of the ends of the round opening of the insulating casing.

On the drawings: 1 - side wall of the case, 2 - clamping cover, 3 - radial stop, 4 - bottom of the case, 5 - fan, 6 - fan rotation axis, 7 - support platform, 8 - elastic gasket, 9 - outer walls of the insulating casing , 10 - inner walls of the insulating casing, 11 - fan casing, 12 - upper supporting part of the casing, 13 - ventilation grill, 14 - wheel, 15 - air flow direction, 16 - connector for the pipe, 17 - pipe, 18 - switch, 19 - screw, 20 - filter, 21 - starting capacitor, 22, 23, 26, 27 - electrical wires, 24 - electrical plug, 25 - filter support cover, 28 - ventilation grille ring, 29 - front panel, 30 - adjustable tripod , 31 - corrugated air duct, 32 - retainer, 33 - lamp, 34 - LED lamp, 35 - mounting screws, 36 - upper mounting part of the casing, 37 - lower support rim of the casing, 38 - through hole in the front panel, 39 - hole for adjustable tripod inserts, 40 - p rubber gasket, 41 - holes with threaded bushings, 42 - pressure plate, 43 - through holes in the pressure plate, 44 - washer, 45 - fixing screw, 46 - hole in the top cover of the housing, 47 - annular elastic gasket.

Implementation of the invention

The claimed air purifier in the local area contains (see Fig.2) a housing, a fan, a flexible duct, an adjustable stand 30, an annular lamp 33 and a filter, where the latter is placed inside the insulating casing.

Between the insulating casing and the inner side walls 1 (see Fig.1) of the housing there are elastic gaskets 8. A fan 5 is fixed on the support platform 7, and the support platform 7 itself is fixed through the radial stops 3.

What is new is that the insulating casing is made of plastic and fixed to the inner side of the upper part of the housing 36 (see Fig.5), for example, using screws 19, and its lower part is made tapering and ending in a round hole, the ends of which are fixed in butt to the round hole of the bottom 4 of the body.

This design of the insulating casing, made of plastic, suspended from the inner side of the upper part of the housing 36 and not rigidly fixed to the housing, where the insulating casing is pressed against the inner side walls 1 of the housing through elastic gaskets 8, provides more effective vibration compensation compared to analogues.

In this case, the radial stops 3 can also be made of plastic and fixed ends to the tapering part of the insulating casing (see Fig.4, Fig.5). Due to the fact that the fan 5 is fixed on the support platform 7, and the support platform 7 itself is fixed through the radial stops 3, such mounting of the fan 5 further reduces the transmission of vibration from the fan 5 to the housing, since the vibration is transmitted only along the ends of the radial stops 3, which reduces the area of vibration impact on the insulating casing, and with it the housing. The symmetrical placement of the radial stops 3 relative to the rotation axis 6 of the fan 5 makes it possible to reduce the transmission of vibration to the housing even more effectively, since the vibration is distributed evenly over the stops 3, and the vibration force vectors are oriented from the center of the rotation axis 6 in different directions, canceling each other out.

To further reduce the transmission of vibration radial stops 3 can be made in the form of the same type of plates in the form of a polygon, in which the smallest of the sharp corners would be adjacent to the support platform (see Fig.4, Fig.5). Due to the fact that the vibration is transmitted to the sharpest angle in the stop plate 3, the area of the plate, on which the vibration is transmitted towards the insulating casing, is significantly small in comparison with that which holds the stops 3 on the walls of the tapering part of the insulating casing.

If each of these radial stops 3 is also fixed with its end to the supporting surface or to the tapering part of the insulating casing with a slope to one side (as shown in Fig.5), this will reduce vertical vibrations, since the plastic of the radial stops 3 in this case, it will be more subject to bending and the support platform 7 will be fixed through the radial stops 3 to the insulating casing with a damping effect.

Elastic spacers 8 can be installed between the outer walls 9 of the insulating casing (see Fig.1) and the inner side walls 1 of the casing in places of the shortest distance between them (see Fig.5), where direct contact is possible between the outer walls 9 of the insulating casing and inner side walls of 1 case. But it must not be allowed, otherwise strong vibration and noise are possible. Therefore, the installation of gaskets 8 in these places provides more effective protection against noise and vibration.

As a fan 5 can be used, for example, a centrifugal fan. The fan 5 has a power connection wire 26, which, for example, through the starting capacitor 21, the connection through the wire 27 through the wiring, is led to the wiring 22 to the switch 18 and to the power supply wire 23, which has an electrical plug 24 at the end.

If necessary, the body of the device can be mounted on wheels 14 for ease of movement.

The insulating casing can be made in different ways. The preferred embodiment is one in which the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which are fixed by shrinkage inside the diameter of the round hole of the bottom 4 of the housing (see Fig.1). At the same time, the ventilation grille 13 (see its view in Fig.3), installed at the bottom of the hole in the bottom 4 of the housing, may have an annular protrusion 28 on the inside, the outer diameter of which corresponds to the diameter of the round hole of the tapering part of the insulating casing. This design of the insulating casing provides, on the one hand, crimping the insulating grating 13 with an annular protrusion 28, with which the grating 13 itself is fixed in the bottom 4, and, on the other hand, crimping against the edges of the inner diameter of the round hole of the bottom 4 of the housing.

An acceptable embodiment is also one in which the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which simply rest on the edges of the round hole of the bottom 4 of the body (see Fig.8). In this case, it is preferable that an elastic ring gasket 47 be installed at the edges of the ends of the round hole of the insulating casing, which would enhance vibration damping and sound insulation.

The insulating casing itself, in addition to its lower part, can be cylindrical in shape and consisting of an inner 10 and an outer 9 cavities (see Fig.1, Fig.8). With this embodiment, a filter 20 can be placed in the inner cavity, and the outer cavity 9 interacts with the housing through elastic gaskets 8. In this case, the fan 5 can be placed inside a plastic casing 11, in which the upper part of the intake hole is adjacent to the lower part of the inner cavity 10 insulating casing. The filter 20 itself can be located in the inner cavity 10 of the insulating casing with emphasis on its upper walls through the cover 25 of the filter.

The principle of fixing the filter 20 inside the housing can be implemented in any way, since this does not affect the reduction of vibration or noise in any way.

So, (see Fig.6) the inlet for installing the filter 20 in the insulating casing can be aligned with the hole 46 in the top cover of the housing 12 and with the hole in the hinged cover of the housing 2, while the filter 20 rests on its upper cover 25 of the housing.

Also, the upper part of the filter 20 can be (see Fig.7) fixed to the upper part of the housing by means of a pressure plate 42 and fixing screws 45 through the rubber gasket 40. To do this, the tripod 30 is removed from the hole 34 so as not to interfere, then the filter 20 lowered with a stop cover 25 on the top cover of the housing 12 (which in this embodiment is not hinged). After that, a pressure plate 42 is lowered onto the rubber pad 40, in which there are through holes 43, so that they are aligned with the holes 41 containing the threaded bushings. Through washers 44, fixing screws 45 are screwed into the threaded bushings.

After installing the filter 20 and fixing it as described above and shown in Fig.6, Fig.7, then the adjustable stand 30 is inserted, then the connector 16 for the nozzle 17, which is then attached to it, and the corrugated duct 31 is attached to the nozzle 17, the end which is inserted into the annular lamp 33 in the form of a torus, where the ring is an LED lamp 34. Then, using the latch 32, the lamp 33 is fixed to the tripod 30.

After that the device is ready to work.

The principle of operation of the invention is as follows. The electrical plug 24 is plugged into the socket. After turning on the switch 18, power is supplied through the wires through the starting capacitor 21 to the fan 5, which starts to work and sucks in air.

The air is sucked in through the corrugated air duct 31, then into the branch pipe 17 and then enters the filter zone 20, where further the air flow 15 goes along the edges of the filter 20 into the opening between them and the inner walls 10 of the insulating casing, then it enters the fan 5 in the area of the plastic casing 11 , from where it then exits through the hole in the bottom 4 and the ventilation grill 13.

During operation of the device, the main noise from the movement of air and the fan goes inside the insulating casing, which, due to the fact that it is made of plastic, in itself serves as a good sound insulator. Due to the small area of contact of the insulating casing with the housing, the noise is also reduced.

Thus, by eliminating the technical problems of known solutions, namely:

- exclusion of rigid fixation of the ventilation zone and the fan to the walls and bottom of the case,

- exclusion of the transfer of the main load of the weight of the fan unit and the filtration unit on the bottom,

which is generally implemented by freely hanging the insulating casing to the upper part of the body and minimizing the stop on the bottom, it was possible to achieve the task of creating such an air purifier in a local area that provides effective vibration and noise insulation.

During the tests, it was empirically found that the noise reduction in comparison with the prototype was at the level of 22-24 dB, and the vibration was almost completely eliminated and was not actually felt when using the device as a vacuum cleaner for a manicure / pedicure room.

Claims (15)

1. An air purifier in a local area, containing a housing, a fan, a flexible air duct, an adjustable stand, an annular lamp and a filter placed inside the insulating casing, moreover, elastic gaskets are located between it and the inner side walls of the housing, a fan is fixed on the support platform, and the support itself the platform is fixed through radial stops, characterized in that the insulating casing is made of plastic and fixed to the inner side of the upper part of the housing, and its lower part is made with a tapering and ending round hole, the ends of which are fixed close to the round hole of the housing bottom. 2. The air purifier according to claim 1, characterized in that the radial stops are made of plastic and fixed with their ends to the tapering part of the insulating casing. 3. The air purifier according to claim 2, characterized in that the location of the radial stops is symmetrical with respect to the axis of rotation of the fan. 4. The air purifier according to claim 1, characterized in that the radial stops are made in the form of the same type of plates in the form of a polygon, in which the smallest of the sharp corners adjoins the support platform. 5. The air purifier according to claim 4, characterized in that each of such radial stops is fixed with its end to the supporting surface or to the tapering part of the insulating casing with a slope in one direction. 6. The air purifier according to claim 1, characterized in that the elastic gaskets are installed between the outer walls of the insulating casing and the inner side walls of the housing in the places of the shortest distance between them. 7. The air purifier according to claim 1, characterized in that the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which are fixed by shrinkage inside the diameter of the round hole in the bottom of the case. 8. The air purifier according to claim 7, characterized in that the ventilation grill installed at the bottom of the hole in the bottom of the housing has an annular protrusion on the inside, the outer diameter of which corresponds to the diameter of the round hole of the tapering part of the insulating casing. 9. The air purifier according to claim 1, characterized in that the lower part of the insulating casing is made with a tapering and ending round hole, the ends of which rest on the edges of the round hole in the bottom of the housing. 10. An air purifier according to claim 9, characterized in that an elastic ring gasket is installed at the edges of the ends of the round hole of the insulating casing. 11. The air purifier according to claim 1, characterized in that the insulating casing, in addition to its lower part, is made cylindrical and consists of an inner and outer cavities, and a filter is placed in the inner cavity, and the outer cavity interacts with the housing through elastic gaskets. 12. The air purifier according to claim 11, characterized in that the fan is placed inside a plastic casing, in which the upper part of the intake opening is adjacent to the lower part of the internal cavity of the insulating casing. 13. The air purifier according to claim 12, characterized in that the filter in the inner cavity of the insulating casing is installed with an emphasis on its upper walls with a filter cover. 14. The air purifier according to claim 1, characterized in that the inlet for installing the filter in the insulating casing is aligned with the hole in the top cover of the housing and with the hole in the hinged cover of the housing, while the filter rests on the upper cover of the housing. 15. The air purifier according to claim 1, characterized in that the upper part of the filter is fixed to the upper part of the housing by means of a pressure plate and fixing screws through a rubber gasket.

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