CN215490131U - Exhaust valve and new fan - Google Patents

Abstract

The utility model provides an exhaust valve and a fresh air machine, wherein the exhaust valve is arranged on the fresh air machine, the fresh air machine comprises an indoor air outlet pipeline and an outdoor air pipeline which are connected with the exhaust valve, outdoor air can be introduced into the fresh air machine through the outdoor air pipeline, the exhaust valve comprises a driving part and an adjusting part and is provided with an air outlet, and the driving part can drive the adjusting part to act so as to enable the air outlet to be communicated with the indoor air outlet pipeline or the outdoor air pipeline. By adopting the structure, the fresh air fan can adjust the air outlet of the exhaust valve to be communicated with the outdoor ventilation pipeline by controlling the driving part of the exhaust valve, under the condition, the air entering the fresh air fan can be blown out from the outdoor ventilation pipeline, and the impurities blocked in the filtering device in the outdoor ventilation pipeline are also blown out together, thereby realizing the self-cleaning of the fresh air fan.

Description

Exhaust valve and new fan

Technical Field

The utility model relates to the technical field of fresh air machines, in particular to an exhaust valve and a fresh air machine.

Background

The fresh air machine is an effective air purification device, can circulate indoor air, on one hand, discharges dirty indoor air outdoors, and on the other hand, inputs outdoor fresh air into the room after measures such as sterilization, disinfection, filtration and the like, so that the air in the room is fresh and clean at every moment.

And in the in-process of introducing the outside air at new fan, because there are impurities such as poplar wadding, catkin, big particulate matter or insect in the air, these impurities can be inhaled outdoor air pipe inside, block up on setting up the inside filter equipment of outdoor air pipe, cause pipeline jam, air volume to reduce, probably lead to the unable normal operating of new fan even. And among the prior art, the impurity that blocks up in filter equipment can only be through dismantling new fan, lift the filter screen off the artifical clearance alone, and whole process is comparatively loaded down with trivial details, and consumes a large amount of manpower and materials, has increased the maintenance cost of new fan.

Therefore, how to provide a new fan which is convenient to clean and maintain is a technical problem to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fresh air fan which is convenient to clean and maintain.

In order to solve the technical problems, the utility model provides an exhaust valve which is installed on a fresh air machine, wherein the fresh air machine comprises an indoor air outlet pipeline and an outdoor air pipeline, the indoor air outlet pipeline and the outdoor air pipeline are both connected to the exhaust valve, outdoor air can be introduced into the fresh air machine through the outdoor air pipeline, the exhaust valve comprises a driving part and an adjusting part and is provided with an air outlet, and the driving part can drive the adjusting part to act so that the air outlet is communicated with the indoor air outlet pipeline or the outdoor air pipeline.

By adopting the structure, the fresh air fan can adjust the air outlet of the exhaust valve to be communicated with the outdoor ventilation pipeline by controlling the driving part of the exhaust valve, under the condition, the air entering the fresh air fan can be blown out from the outdoor ventilation pipeline, and the impurities blocked in the filtering device in the outdoor ventilation pipeline are also blown out together, thereby realizing the self-cleaning of the fresh air fan.

Optionally, the exhaust valve is provided with a casing, the regulating part is the casing, the air outlet is located the casing, the drive part drive the casing rotates, so that the air outlet with indoor air-out pipeline or outdoor ventilation pipeline intercommunication.

Optionally, the drive division install in the new fan, the air outlet set up in the lateral wall of casing, indoor air-out pipeline with outdoor air pipe set up respectively in the both sides of casing, the drive division can drive the casing rotates, so that the air outlet with indoor air-out pipeline or outdoor air pipe intercommunication.

Optionally, the driving portion includes a gear, a rack matched with the gear is arranged on the upper edge of the side wall of the shell, and the driving portion can drive the gear to drive the rack to rotate.

Optionally, the exhaust valve includes the casing, the casing is equipped with closed area, regulating part is the rocking arm, the rocking arm is separated closed area, closed area intercommunication the air outlet, closed area still is equipped with the intercommunication respectively indoor air-out pipeline with outdoor air pipe's first wind gap, second wind gap, first wind gap with the second wind gap set up in the both sides of rocking arm, the drive division drive the rocking arm swing, make the air outlet with first wind gap or second wind gap intercommunication.

Optionally, the driving portion includes a gear, the housing is further provided with a rack matched with the gear, the rack is of an arc-shaped structure, and the driving portion can drive the gear to drive the rocker arm to swing along the rack.

Optionally, the air conditioner further comprises an outdoor ventilation valve, wherein the outdoor ventilation valve can open or close the second air opening.

Optionally, the exhaust valve comprises a shell and a bracket, the shell and the bracket both comprise a cylinder body with a grid structure, the shell and the bracket are nested, the bracket is provided with two transition grids, the rest grids are as wide as the grids of the shell, and gaps between the grids are as wide as the grids; the two transition grids circumferentially divide the bracket into a first part and a second part which are respectively communicated with the indoor air outlet pipeline and the outdoor ventilation pipeline; the driving part is installed on the fresh air machine, the adjusting part is the shell, the driving part can drive the shell to rotate, partial grids of the shell are overlapped with the grids of the first part, the partial grids are completely staggered with the grids of the second part, and gaps between the first part grids form the air outlet; or partial grids of the shell are overlapped with the grids of the second part, the partial grids are completely staggered with the grids of the first part, and gaps between the grids of the second part form the air outlet.

Optionally, the driving portion includes a gear and a rack that are matched with each other, a protruding block is arranged on the upper edge of the side wall of the shell, a clamping groove matched with the protruding block is arranged at the lower end of the rack, and the driving portion can drive the gear to rotate so that the rack drives the protruding block to rotate.

The utility model also provides a fresh air fan, which comprises an air blower, an outdoor ventilating duct and a filtering device arranged in the outdoor ventilating duct, wherein the fresh air fan is also provided with an exhaust valve, and the exhaust valve is the exhaust valve described above; outdoor air pipe's low reaches reposition of redundant personnel is equipped with first pipeline or second pipeline, the reposition of redundant personnel position set up in outdoor air pipe in filter equipment's low reaches, the air outlet can pass through the second pipeline intercommunication outdoor air pipe.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of an exhaust valve according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of an exhaust valve according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a third embodiment of an exhaust valve according to an embodiment of the present invention;

FIG. 4 is a partial schematic view of the exhaust valve of FIG. 3;

FIG. 5 is a schematic bottom view of the structure of FIG. 4;

FIG. 6 is a schematic view of the exhaust valve in FIG. 3 in communication with the outdoor ventilation duct;

fig. 7 is an exploded view of a fresh air machine according to an embodiment of the present invention.

The reference numerals in fig. 1-7 are illustrated as follows:

the air conditioner comprises a shell 1, a rack 11, an air outlet 12, a rocker arm 13, an outdoor ventilation valve 14, a clamping groove 15, a first air opening 16, a second air opening 17, a convex block 18, a limiting groove 19, a driving part 2, a gear 21, a support 3, a limiting block 31, a transition grid 32, a fan motor 4, an impeller 5 and a photoelectric switch 6.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a first implementation of an exhaust valve according to an embodiment of the present invention.

The embodiment of the utility model provides an exhaust valve which is arranged on a fresh air fan, wherein the fresh air fan comprises an indoor air outlet pipeline and an outdoor ventilating pipeline which are both connected with the exhaust valve, outdoor air can be introduced into the fresh air fan through the outdoor ventilating pipeline, the exhaust valve comprises a driving part 2 and an adjusting part and is provided with an air outlet 12, and the driving part 2 can drive the adjusting part to rotate so that the air outlet 12 is communicated with the indoor air outlet pipeline or the outdoor ventilating pipeline.

Adopt as above structure, new fan can be through the drive division 2 of control exhaust valve, adjust the air outlet 12 of exhaust valve to be linked together with outdoor air pipe, under this condition, new fan is after the air pump goes into the exhaust valve, the air can be followed air outlet 12 and is got into outdoor air pipe, thereby it is outdoor to discharge, in the exhaust in-process, the impurity that blocks up in the filter equipment outside in outdoor air pipe also can together be blown off to the open air, realize new fan's automatically cleaning, the consumption of manpower and materials has been reduced, the artifical cleanness of new fan has been reduced, the cost of maintenance.

It can be understood that the structure and connection manner of the adjusting portion and the driving portion 2 in this embodiment are not limited in the present invention, and the present invention is also included in the protection scope of the present invention as long as the air outlet 12 can be rotated by the driving portion 2 to drive the adjusting portion to rotate, so as to communicate the air outlet 12 with the indoor air outlet duct or the outdoor ventilation duct.

Referring to fig. 1, in a first embodiment of the present invention, an exhaust valve is provided with a housing 1, an adjusting portion is the housing 1, an air outlet 12 is provided in the housing 1, and a driving portion 2 drives the housing 1 to rotate, so that the air outlet 12 is communicated with an indoor air outlet duct or an outdoor air duct.

Specifically, drive division 2 installs in new fan, and casing 1 is the tubbiness structure, and air outlet 12 sets up in casing 1's lateral wall, and indoor air-out pipeline (not shown in the figure) and outdoor air pipe (not shown in the figure) set up respectively in casing 1's both sides, and this both sides mean for casing 1's lateral wall, the both sides of circumference, and drive division 2 can drive casing 1 and rotate, adjusts air outlet 12 to communicate with indoor air-out pipeline or outdoor air pipe.

The forms of the driving portion 2 and the casing 1 are not limited in the present invention, as long as the driving portion 2 can drive the casing 1 to rotate, and the air outlet 12 is adjusted to be communicated with the indoor air outlet pipeline or the outdoor ventilation pipeline.

In addition, the form of the indoor air outlet pipeline and the outdoor ventilation pipeline is not limited to the pipeline, in the embodiment, the circumferential outer side of the side wall of the shell 1 is divided into two parts, the two parts respectively occupy 180 degrees of the circumferential direction of the shell 1, the two parts are not communicated with each other, one part is communicated with the indoor air outlet pipeline, and the other part is communicated with the outdoor ventilation pipeline.

It should be noted that the size of the air outlet 12 should be moderate, and if the air outlet 12 is too small, the air outlet 12 cannot meet the air exhaust requirement of the fresh air machine; if the air outlet 12 is too large, the air exhaust is too dispersed, and the air can be discharged from an outdoor ventilation pipeline and an indoor air outlet pipeline simultaneously, so that the self-cleaning effect of the fresh air fan is reduced. In this embodiment, the size of the air outlet 12 is one fourth of the side wall of the casing 1, that is, the 90-degree opening is formed in the side wall of the casing 1, and the size can ensure the air exhaust requirement of the fresh air machine and does not affect the self-cleaning effect of the fresh air machine.

In this embodiment, the driving portion 2 includes a gear 21, a rack 11 matched with the gear 21 is disposed on the sidewall of the housing 1, the driving portion 2 can drive the gear 21 to rotate, so as to drive the rack 11 to rotate, in fig. 1, the rack 11 is disposed along the sidewall of the housing 1 along the circumferential outer edge, the length of the rack 11 can be set according to the rotation adjustment interval of the housing 1, and in fig. 1, the rack 11 is substantially disposed at 180 degrees.

As shown in fig. 1, in the present embodiment, the center of the casing 1 is fixed in the fresh air machine, and the whole casing can rotate around the center, the driving portion 2 further includes a motor, the motor is fixedly connected with the fresh air machine, the motor can drive the gear 21 to rotate, and the gear 21 is fixed on the motor, so the gear 21 can drive the rack 11 to rotate, so as to drive the whole casing 1 to rotate along with the gear.

Still include photoelectric switch 6 in this embodiment, photoelectric switch 6 can detect whether air outlet 12 rotates in place to with indoor air-out pipeline or outdoor air pipe intercommunication.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an exhaust valve according to a second embodiment of the present invention.

In the second embodiment of this embodiment, the exhaust valve includes a housing 1, the housing 1 is provided with a closed area, the closed area is an internal space of the housing 1, the adjusting portion is a rocker arm 13, the rocker arm 13 separates the closed area, the closed area is communicated with the air outlet 12, the closed area is further provided with a first air port 16 and a second air port 17 which are respectively communicated with an indoor air outlet pipeline and an outdoor air pipeline, the first air port 16 and the second air port 17 are respectively arranged on two sides of the rocker arm 13, and are separated on two sides of the closed area by the rocker arm 13, and the driving portion 2 can drive the rocker arm 13 to swing, so that the air outlet 12 is communicated with the first air port 16 or the second air port 17.

Specifically, as shown in fig. 2, the rear end of the rocker arm 13 is hinged to the housing 1, and the front end is driven by the driving part 2 to swing towards two sides, that is, the rocker arm 13 integrally swings around the fixed position of the rear end; the air outlet 12 is arranged at the bottom of the shell 1, the upper side and the lower side of the rocker arm 13 are sealed with the top and the bottom of the shell 1, the rocker arm 13 divides a sealed area inside the shell 1 into two parts, one part is connected with the first air port 16, the other part is connected with the second air port 17, when the rocker arm 13 swings to the leftmost end, namely is deviated to the first air port 16, the air outlet 12 is completely positioned at the right side of the rocker arm 13, and the air outlet 12 can be communicated with the second air port 17 at the right side; when the swing arm 13 swings to the rightmost end, i.e. is biased to the second air opening 17, the air outlet 12 is completely positioned at the left side of the swing arm 13, and the air outlet 12 can be communicated with the first air opening 16 at the left side. Of course, the swing arm 13 may also be located in a middle position, in which state the outlet 12 can communicate with both the first tuyere 16 and the second tuyere 17.

The driving part 2 may be disposed at other positions of the rocker arm 13, for example, at the middle or rear end of the rocker arm 13, and the driving part 2 may also drive the rocker arm 13 to swing towards two sides.

The forms of the driving portion 2 and the adjusting portion are not limited in the present invention, as long as the driving portion 2 can drive the adjusting portion to rotate, so that the air outlet 12 is communicated with the first air opening 16 or the second air opening 17, or both the first air opening 16 and the second air opening 17.

In addition, the air outlet 12 may be disposed at the bottom, the top, or other positions of the housing 1, and may be freely disposed according to actual conditions, the size of the air outlet 12 should be moderate, so that the air outlet can be located within the rotation range of the swing arm 13, and the swing arm 13 should be able to completely separate the air outlet 12 to be communicated with the first air port 16 or the second air port 17.

In this embodiment, the driving portion 2 includes a gear, the housing 1 is further provided with a rack 11 matched with the gear, the rack 11 is of an arc-shaped structure, and the driving portion 2 can drive the gear to drive the rocker arm 13 to swing along the rack 11.

As shown in fig. 2, the rack 11 is an arc structure arranged inside the housing 1, and is fixedly mounted inside the housing 1, the rack 11 is arranged at the front end of the rocker arm 13, the driving portion 2 further comprises a motor, the motor is fixedly connected with the front end of the rocker arm 13, the motor drives the gear to rotate, and the gear is fixed on the motor, so that the gear can drive the front end of the rocker arm 13 to rock along the rack 11, so as to drive the rocker arm 13 to swing integrally. In fig. 2, a vertical plate is arranged in a housing 1, two ends of the vertical plate are connected to the inner periphery of the side wall of the housing 1 to form a closed area, a rocker arm 13 is located in the closed area, wherein an arc-shaped structure of a rack 11 is a part of the vertical plate.

Similarly, a photoelectric switch (not shown) is also provided in the present embodiment, and the photoelectric switch can detect whether the rocker arm 13 is in place or not, so as to communicate the air outlet 12 with the indoor air outlet duct or the outdoor air outlet duct.

In this embodiment, an outdoor ventilation valve 14 is further included, and the outdoor ventilation valve 14 can open or close the second tuyere 17. With such an arrangement, when the exhaust valve exhausts air only indoors, the second air port 17 can be closed through the outdoor ventilation valve 14, so as to further seal and limit the second air port 17, and prevent outdoor impurities from being blown into the exhaust valve through the second air port 17, which is also applicable to other embodiments.

Referring to fig. 3-6, fig. 3 is a schematic structural diagram of a third embodiment of an exhaust valve according to an embodiment of the present invention; FIG. 4 is a partial schematic view of the exhaust valve of FIG. 3; FIG. 5 is a schematic bottom view of the structure of FIG. 4; fig. 6 is a schematic structural view of the exhaust valve in fig. 3 communicating with the outdoor ventilation duct.

In a third embodiment of this embodiment, the exhaust valve further includes a housing 1 and a bracket 3, the housing 1 and the bracket 3 both include a cylinder with a grid structure, the housing 1 and the bracket 3 are nested, and the housing 1 can rotate around the bracket 3, where a specific structural relationship between the housing 1 and the bracket 3 may be that the housing 1 is sleeved on the bracket 3, or the bracket 3 is sleeved on the housing 1, which is not limited in this invention.

The grid widths of the shell 1 are all equal, the gap width between every two adjacent grids is equal to the grid width, the support 3 is provided with two transition grids 32, the width of each transition grid 32 is equal to the width of one grid of the shell 1 plus one gap, the rest grids are equal to the grid of the shell 1, the gap width between every two adjacent grids is equal to the grid width of the shell 1, the two transition grids 32 divide the support 3 into a first part and a second part, and the first part and the second part are respectively communicated with an indoor air outlet pipeline and an outdoor air outlet pipeline.

As shown in fig. 3, the driving part 2 is installed on the fresh air machine, the adjusting part is the casing 1, the driving part 2 can drive the casing 1 to rotate, so that part of grids of the casing 1 are completely overlapped with the grids of the first part of the bracket 3, part of grids are completely staggered with the grids of the second part, and gaps between the grids of the first part of the bracket 3 form air outlets 12; alternatively, some of the grids of the housing 1 may be completely offset from the grids of the first portion of the rack 3, some of the grids may completely overlap with the grids of the second portion of the rack 3, and the gaps between the grids of the second portion of the rack 3 may form the air outlets 12.

So set up, air outlet 12 can drive casing 1 through drive division 2 and rotate, communicate indoor air-out pipeline or outdoor air pipe, if drive division 2 drive casing 1 rotates, the grid that makes casing 1 and 3 first parts of support and the grid of second part all stagger or incompletely overlap, then the clearance between the first part of support 3 and each grid of second part all forms air outlet 12, air outlet 12 communicates with indoor air-out pipeline and outdoor air pipe all promptly.

In practical application, the arrangement positions of the two transition grids 32 can be freely arranged according to practical conditions, and if the included angle between the two transition grids 32 is set to be close to 180 degrees, the sizes of the air outlets 12 when the air outlets are communicated with the indoor air outlet pipeline and the outdoor ventilation pipeline are approximate; if the included angle between the two transition grids 32 is set to be smaller, the size difference between the air outlet 12 when the indoor air outlet pipeline is communicated and the air outlet 12 when the outdoor air duct is communicated is larger.

The arrangement forms of the shell 1, the driving part 2 and the bracket 3 are not limited in the utility model, as long as the driving part 2 can drive the shell 1 to rotate around the bracket 3, so that the air outlet 12 is communicated with an indoor air outlet pipeline or an outdoor air outlet pipeline.

In this embodiment, the driving portion 2 includes a gear 21 and a rack 11 that are matched with each other, a protrusion 18 is disposed on an upper edge of a side wall of the housing 1, a slot 15 that can be matched with the protrusion 18 is disposed at a lower end of the rack 11, and the driving portion 2 can drive the gear 21 to rotate, so that the rack 11 drives the protrusion 18 to rotate in the slot 15.

Referring to fig. 3-6, the rack 11 is semi-circular, and the lower end thereof is provided with a circular slot 15, which is referred to fig. 3 and the same applies hereinafter. Be provided with two dog 180 degrees of being separated from in the draw-in groove 15, the lug 18 card on edge on the casing 1 lateral wall goes into behind draw-in groove 15, when rack 11 rotates, draw-in groove 15 just also rotates thereupon, after rotating certain angle, the dog in the draw-in groove 15 can butt lug 18, continue to rotate the back, the dog can promote lug 18 and also rotate thereupon, drive casing 1 and correspond the rotation to control air outlet 12 and indoor air-out pipeline or outdoor air pipe intercommunication.

In this embodiment, the inner edge of the upper end of the housing 1 is further provided with a limiting groove 19, the upper end of the bracket 3 is further provided with a limiting block 31, and specifically, as shown in fig. 5, the width of the limiting groove 19 is the same as the width of a grid of the housing 1 plus a gap.

With such arrangement, when the casing 1 is sleeved with the support 3 and rotates, because the support 3 is fixed on the fresh air machine, the limiting groove 19 is matched with the limiting block 31, the casing 1 can only rotate by a small angle, namely the limiting block 31 moves from one end of the limiting groove 19 to the other end, and when the limiting blocks 31 are respectively positioned at two ends of the limiting groove 19, the air outlet 12 can be respectively communicated with an indoor air outlet pipeline or an outdoor ventilation pipeline; when the limiting block 31 is not contacted with the two ends of the limiting groove 19, the air outlet 12 can be communicated with both the indoor air outlet pipeline and the outdoor ventilation pipeline.

Spacing groove 19 and two structures of stopper 31 and draw-in groove 15 cooperate with two structures of lug 18, when drive division 2 drives rack 11 rotatory, need rotatory 180 degrees earlier, make dog butt lug 18 in the draw-in groove 15, later only need rotatory less angle once more, can make the direction of intercommunication of air outlet 12 change, then need drive division 2 to drive rack 11 rotatory 180 degrees backs to opposite direction during adjustment once more, the dog butt of opposite side in lug 18 and the draw-in groove 15, rotatory less angle again, can make the direction of intercommunication of air outlet 12 continue to change.

Of course, the present invention does not limit the arrangement of the locking slot 15, the protrusion 18, the limiting slot 19 and the limiting block 31, and the arrangement position and structure can be freely adjusted according to the situation in practical application, and the present invention is included in the protection scope of the present invention as long as the present invention has the same effect as the present embodiment.

As shown in fig. 3, the photoelectric switch 6 is also provided in the present embodiment, and the photoelectric switch 6 can detect whether the housing 1 is rotated in place, so that the air outlet 12 is communicated with the indoor air outlet duct or the outdoor air outlet duct.

Referring to fig. 7, fig. 7 is an exploded view of a fresh air machine according to an embodiment of the present invention.

The present invention further provides a new blower, including an air blower, an outdoor ventilation duct, and a filtering device disposed inside the outdoor ventilation duct, wherein the new blower is further provided with an exhaust valve, which is the exhaust valve described above.

In this embodiment, the downstream of the outdoor ventilation duct is provided with a first duct and a second duct in a shunting manner, the shunting position is arranged at the downstream of the filtering device in the outdoor ventilation duct, and the air outlet 12 can be communicated with the outdoor ventilation duct through the second duct. It should be noted that the new air blower further comprises an air mixing valve, a blower and an indoor air inlet pipeline, the air mixing valve is communicated with the indoor air inlet pipeline and the first pipeline of the outdoor ventilation pipeline, the air mixing valve can adjust the proportion of air inlet from indoor to outdoor, the blower can extract air from indoor and outdoor through the air mixing valve, pump the air into the new air blower, and discharge the air to indoor or outdoor through an exhaust valve, and the blower comprises a blower motor 4 and an impeller 5.

Taking the first embodiment of the exhaust valve as an example, the fan motor 4 and the impeller 5 are both disposed inside the exhaust valve housing 1, and the new fan can realize the following four modes through the air mixing valve and the exhaust valve:

fresh air purification mode: an air inlet of the air mixing valve is communicated with a first pipeline of an outdoor ventilating pipeline, an air outlet of the exhaust valve is communicated with an indoor air outlet pipeline, a fan motor 4 is started, outdoor air is pumped into a fresh air machine to be filtered and flows into a room to form indoor positive pressure, and indoor dirty air is naturally exhausted;

and (3) circulating purification mode: the air inlet of the air mixing valve is communicated with an indoor air inlet pipeline, the air outlet of the exhaust valve is communicated with an indoor air outlet pipeline, a fan motor 4 is started, indoor dirty air is pumped into a fresh air machine, and the filtered air flows into the room;

a mixed purification mode: an air inlet of the air mixing valve is communicated with a first pipeline of an outdoor ventilating pipeline and an indoor air inlet pipeline, an air outlet of the exhaust valve is communicated with an indoor air outlet pipeline, a fan motor 4 is started, indoor dirty air and outdoor air are pumped into a fresh air machine together, and the filtered dirty air flows into a room to form indoor positive pressure and naturally discharge the indoor dirty air;

an air exhaust purification mode: when outdoor air is better, an air inlet of the air mixing valve is communicated with an indoor air inlet pipeline, an air outlet of the exhaust valve is communicated with a second pipeline of the outdoor ventilating pipeline, the fan motor 4 is started, indoor dirty air is exhausted outdoors through the outdoor ventilating pipeline, meanwhile, impurities attached to the outer side of the filtering device inside the outdoor ventilating pipeline are blown out, self-cleaning is completed, meanwhile, negative pressure is formed indoors, and outdoor fresh air is naturally introduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides an exhaust valve installs in new fan, new fan includes indoor air-out pipeline and outdoor air pipe, the two all connect in exhaust valve, outdoor air can warp outdoor air pipe introduces new fan, its characterized in that: the exhaust valve comprises a driving part (2) and an adjusting part, an air outlet (12) is formed in the driving part, the driving part (2) can drive the adjusting part to act, and therefore the air outlet (12) is communicated with an indoor air outlet pipeline or an outdoor air pipeline.

2. An exhaust valve as defined in claim 1, further comprising: the exhaust valve is provided with casing (1), the regulating part does casing (1), air outlet (12) are located casing (1), drive division (2) drive casing (1) rotate, so that air outlet (12) with indoor air-out pipeline or outdoor air pipe intercommunication.

3. An exhaust valve as defined in claim 2, further comprising: drive division (2) install in new fan, air outlet (12) set up in the lateral wall of casing (1), indoor air-out pipeline with outdoor air pipe set up respectively in the both sides of casing (1), drive division (2) can drive casing (1) rotates, so that air outlet (12) with indoor air-out pipeline or outdoor air pipe intercommunication.

4. An exhaust valve as defined in claim 3, further comprising: the driving portion (2) comprises a gear (21), a rack (11) matched with the gear (21) is arranged on the side wall of the shell (1) along the upper edge, and the driving portion (2) can drive the gear (21) to drive the rack (11) to rotate.

5. An exhaust valve as defined in claim 1, further comprising: exhaust valve includes casing (1), casing (1) is equipped with closed area, regulating part is rocking arm (13), rocking arm (13) are separated closed area, closed area intercommunication air outlet (12), closed area still is equipped with respectively the intercommunication indoor air-out pipeline with outdoor air pipe's first wind gap (16), second wind gap (17), first wind gap (16) with second wind gap (17) set up in the both sides of rocking arm (13), drive division (2) drive rocking arm (13) swing, make air outlet (12) with first wind gap (16) or second wind gap (17) intercommunication.

6. An exhaust valve as defined in claim 5, further comprising: the driving portion (2) comprises a gear (21), the shell (1) is further provided with a rack (11) matched with the gear (21), the rack (11) is of an arc-shaped structure, and the driving portion (2) can drive the gear (21) to drive the rocker arm (13) to swing along the rack (11).

7. An exhaust valve as defined in claim 5, further comprising: and the air conditioner also comprises an outdoor ventilation valve (14), wherein the outdoor ventilation valve (14) can open or close the second air opening (17).

8. An exhaust valve as defined in claim 1, further comprising: the exhaust valve comprises a shell (1) and a support (3), the shell (1) and the support (3) respectively comprise a cylinder body with a grid structure, the shell (1) and the support (3) are nested, the support (3) is provided with two transition grids (32), the rest grids are as wide as the grids of the shell (1), and gaps among the grids are as wide as the grids; the two transition grids (32) divide the bracket (3) into a first part and a second part along the circumferential direction and are respectively communicated with the indoor air outlet pipeline and the outdoor ventilation pipeline;

the driving part (2) is installed on the fresh air machine, the adjusting part is the shell (1), the driving part (2) can drive the shell (1) to rotate, partial grids of the shell (1) are overlapped with grids of the first part, the partial grids are completely staggered with grids of the second part, and gaps among the grids of the first part form the air outlet (12); or partial grids of the shell (1) are overlapped with the grids of the second part, the partial grids are completely staggered with the grids of the first part, and gaps between the grids of the second part form the air outlet (12).

9. An exhaust valve as defined in claim 8, further comprising: drive division (2) are including matched with gear (21) and rack (11), be equipped with lug (18) along being equipped with on casing (1) lateral wall, rack (11) lower extreme be equipped with lug (18) matched with draw-in groove (15), drive division (2) can drive gear (21) rotate, make rack (11) drive lug (18) rotate.

10. New fan, including air-blower, outdoor air pipe and set up in the inside filter equipment of outdoor air pipe, its characterized in that: the fresh air machine is also provided with an exhaust valve, and the exhaust valve is as defined in any one of claims 1 to 9;

outdoor ventilation pipe's low reaches reposition of redundant personnel is equipped with first pipeline or second pipeline, the reposition of redundant personnel position set up in outdoor ventilation pipe in filter equipment's low reaches, air outlet (12) can pass through the second pipeline intercommunication outdoor ventilation pipe.

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