CN108626834B

CN108626834B - Multipurpose exhaust cap

Info

Publication number: CN108626834B
Application number: CN201810549365.8A
Authority: CN
Inventors: 张琦
Original assignee: Shenzhen Wanju Technology Co ltd
Current assignee: Shenzhen Wanju Technology Co ltd
Priority date: 2018-05-31
Filing date: 2018-05-31
Publication date: 2023-09-29
Anticipated expiration: 2038-05-31
Also published as: CN108626834A

Abstract

A multipurpose exhaust cap. The invention relates to the technical field of centralized exhaust passage systems of residential kitchens and bathrooms, and provides a rainproof cover plate which comprises a base with a first air passage, a vent pipe arranged outside the base and above the first air passage, and a check plate which is arranged in the first air passage, wherein a second air passage communicated with the first air passage is arranged in the vent pipe, exhaust equipment capable of being opened and closed at fixed time is arranged in the second air passage, a third air passage is formed by reserving a vent between the vent pipe and the first air passage, and the base or the vent pipe is provided with a check plate for sealing the third air passage. In the invention, the exhaust equipment is started to exhaust air in the high-pressure and high-speed concentrated period of system exhaust, so that the exhaust capacity is enhanced; and closing the air draft equipment at the low pressure and low speed period of the system, and naturally exhausting air by the hood.

Description

Multipurpose exhaust cap

Technical Field

The invention relates to the technical field of centralized exhaust passage systems of residential kitchens and bathrooms, and particularly provides a multipurpose exhaust cap.

Background

At present, an exhaust cap applied to an air outlet of a residential exhaust passage system has two main types of natural exhaust and dynamic exhaust. Both types of exhaust caps have defects: wherein, the natural exhaust cap is in the concentrated exhaust period of users and exhausts the weakness; the power exhaust cap has the advantages of long-period power exhaust, high noise, high power consumption and high resistance when the machine is stopped for natural exhaust.

Disclosure of Invention

The invention aims to provide a multipurpose exhaust cap, which aims to solve the technical problems of weakness in exhaust, power consumption, noise, large resistance and the like of the exhaust cap in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a multi-purpose exhaust cap, includes the base that has first air flue and locates outside the base and be located the rain-proof apron of first air flue top, still including locating lead to the hollow tube in the first air flue, lead to the hollow tube in have with the second air flue of first air flue intercommunication, be equipped with the updraft ventilator that can regularly open and close in the second air flue, lead to the hollow tube with leave the logical sky between the first air flue and form the third air flue, be equipped with on base or the logical hollow tube and be used for sealing the check plate of third air flue.

Further, the air draft device comprises a motor, an impeller arranged on an output shaft of the motor and a timing/constant pressure/constant speed opening and closing device electrically connected with the motor.

Further, the cross section of the first air passage is round, oval, polygonal or special-shaped.

Further, the first air passage is a constant cross-section passage, or the first air passage is a variable cross-section passage.

Further, a plurality of fixing rods are connected to the outside of the base, and the rain cover plate is fixed to the tops of the fixing rods.

Further, still be equipped with the deep bead outside the base, the deep bead winds 360 degrees totally enclosed encloses of base closes, the deep bead the base reaches rain-proof apron is through a plurality of mounting fixed connection.

Further, the fixing piece is bent to be V-shaped, a bending point in the middle of the V-shaped fixing piece is fixedly connected with the inner wall of the wind shield, one end of the opening of the V-shaped fixing piece is fixedly connected with the rainproof cover plate, and the other end of the opening of the fixing V-shaped fixing piece is fixedly connected with the base.

Further, the outer edge of the rain-proof cover plate is provided with a water dripping edge.

Further, the second air passage is a constant cross-section passage, or the second air passage is a variable cross-section passage.

Further, the check plate is a check structure which can be opened by natural wind and closed by dead weight, or the check plate is opened and closed by an electromagnetic valve.

The invention has the beneficial effects that:

in the invention, a user concentrates the exhaust period, the exhaust equipment is started, the exhaust equipment performs power exhaust on the second air passage, the check plate is in a closed state and seals the third air passage, at the moment, gas enters from the first air passage and is exhausted from the second air passage, so that the exhaust equipment is started to exhaust in the high-pressure and high-speed concentrated period of system exhaust, and the exhaust capacity is enhanced; the exhaust equipment is closed in the period of non-concentrated exhaust, meanwhile, the check plate is opened, at the moment, gas enters from the first air passage and is naturally exhausted from the second air passage and the third air passage, so that the exhaust equipment is closed in the period of low-pressure and low-speed sporadic exhaust of the system, and the hood is naturally exhausted, thereby solving the problem that the current natural exhaust hood is weak in the period of concentrated exhaust of users; the power exhaust cap has large noise and power consumption when in power exhaust for a long period of time, and has large resistance when in natural exhaust during shutdown.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a multi-purpose exhaust cap according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 and illustrates the natural exhaust path with the suction device closed;

FIG. 3 is a cross-sectional view of a multipurpose exhaust cap according to an embodiment of the present invention, and illustrates an exhaust path when an exhaust device is opened;

FIG. 4 is a top view of a multi-purpose exhaust cap according to a second embodiment of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4 and illustrates the natural exhaust path with the suction device closed;

FIG. 6 is a top view of a multi-purpose exhaust cap according to a third embodiment of the present invention;

FIG. 7 is a cross-sectional view C-C of FIG. 6 and illustrates the natural draft path with the suction device closed;

FIG. 8 is a cross-sectional view of a windshield in a multi-purpose exhaust cap according to a fourth embodiment of the present invention;

FIG. 9 is a cross-sectional view of a rain cover plate in a multi-purpose exhaust hood according to a fifth embodiment of the present invention;

FIG. 10 is a cross-sectional view of a rain cover plate in a multi-purpose exhaust hood according to a sixth embodiment of the present invention;

wherein, each reference sign in the figure:

10-a base; 11-a first airway; 12-a bottom plate; 121-mounting holes; 13-a sleeve; 14-fixing rod; 20-rain cover plate; 21-plate; 22-bending plate; 30-emptying the tube; 31-a second airway; 32-a third airway; 33-fixing blocks; 34-connecting blocks; 40-air draft equipment; 41-an electric motor; 42-impeller; 50-a check plate; 60-wind shield; 61-shooting plate; 70-fixing piece.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1 and 2, the multipurpose exhaust cap provided by the embodiment of the invention comprises a base 10 with a first air passage 11, a rainproof cover plate 20 arranged outside the base 10 and above the first air passage 11, and a vent pipe 30 arranged in the first air passage 11, wherein a second air passage 31 is arranged in the vent pipe 30, the second air passage 31 is communicated with the first air passage 11, an exhaust device 40 capable of being opened and closed at fixed time is arranged in the second air passage 31, a third air passage 32 is formed by leaving a vent between the vent pipe 30 and the first air passage 11, and a check plate 50 for sealing the third air passage 32 is arranged on the base 10 or the vent pipe 30.

In the embodiment of the present invention, as shown in fig. 3, a user concentrates the exhaust period, opens the exhaust device 40, the exhaust device 40 performs power exhaust on the second air passage 31, the check plate 50 is in a closed state, and seals the third air passage 32, at this time, the air enters from the first air passage 11 and is exhausted from the second air passage 31, so that the exhaust device 40 is started to perform exhaust during the high-pressure and high-speed concentrated period of system exhaust, and the exhaust capability is enhanced; in the period of non-concentrated exhaust, as shown in fig. 2, the exhaust device 40 is closed, meanwhile, the check plate 50 is opened, and at this time, gas enters from the first gas passage 11 and is naturally exhausted from the second gas passage 31 and the third gas passage 32, so that the exhaust device 40 is closed in the period of low-pressure and low-speed scattered exhaust of the system, and the hood is naturally exhausted, thereby solving the problem that the current natural exhaust hood is weak in the concentrated exhaust of users; the power exhaust cap has large noise and power consumption when in power exhaust for a long period of time, and has large resistance when in natural exhaust during shutdown.

In this embodiment, the air extraction device 40 includes a motor 41, an impeller 42 provided on an output shaft of the motor 41, and a timing/constant pressure/constant speed opening and closing device (not shown) electrically connected to the motor 41. The exhaust passage system concentrates the exhaust period: kitchen systems are typically 6:30-8:30 in the morning, 11:00-13:00 in the noon, and 18:00-20:00 in the evening; toilet systems are typically 6:30-8:30 in the morning and 20:00-22:00 in the evening. The common concentrated exhaust period is also the period with high pressure and high flow speed in the system, so the opening and closing device can be opened and closed at fixed time, fixed pressure and fixed speed.

In this embodiment, the base 10 includes a bottom plate 12 and a sleeve 13 disposed on the bottom plate 12, the first air passage 11 penetrates through the sleeve 13 and the bottom plate 12 from top to bottom, and a mounting hole 121 is disposed on the bottom plate 12 for fixing to the base 10. In this embodiment, the cross section of the first air passage 11 is rectangular. Alternatively, the cross section of the first air passage 11 may be circular, elliptical, other polygonal or shaped.

In this embodiment, the bottom of the sleeve 13 is slightly larger and the top is slightly smaller, i.e. the first air passage 11 is a variable cross-section passage, i.e. the cross sections of the first air passage 11 along the air flow path direction are not exactly the same. Alternatively, the first air passage 11 may be a uniform cross-sectional passage, that is, the first air passage 11 has the same cross-section along the air flow path direction.

In this embodiment, four fixing rods 14 are connected to the outside of the base 10, the four fixing rods 14 are respectively fixed on four sides of the sleeve 13 with a rectangular cross section, and the rain-proof cover plate 20 is fixed on the top of the four fixing rods 14.

In this embodiment, the outer edge of the flashing 20 is provided with a drip edge (not shown). The water drop edge is arranged, so that water drops formed during condensation of water vapor can be conveniently collected.

In this embodiment, the hollow tube 30 is a cylindrical tube, and the second air passage 31 is a constant-section channel, that is, the hollow tube 30 is a constant-diameter tube. Of course, the hollow tube may be a reducing tube, so that the second air passage 31 is a variable-section passage. The hollow pipes 30 are fixedly connected with the inner wall of the sleeve 13 of the base 10 through fixing blocks 33 which are arranged around the hollow pipes and are opposite to each other.

In this embodiment, the check plate 50 is disposed in the first air passage 11 and is located slightly higher than the vent pipe 30, so that the third air passage 32 between the first air passage 11 and the vent pipe 30 can be opened or closed when the check plate is opened or closed. Alternatively, the check plate 50 may be provided on top of the sleeve 13 as long as it can block/open the third air passage 32.

In this embodiment, the check plate 50 is a check structure that can be opened by natural wind and closed by self weight, or the check plate 50 is opened and closed by an electromagnetic valve.

Further, in the present embodiment, a gas filtering device (not shown) is provided at the gas inlet of the first gas passage 11. Thus, the impurities, oil stains and the like in the gas are subjected to preliminary filtration, and the impurities and the oil stains are prevented from entering the first air passage 11 to form stains on the inner wall.

Example two

Referring to fig. 4 and 5, the difference between the present embodiment and the first embodiment is that a wind deflector 60 is further disposed outside the base 10, the wind deflector 60 is enclosed by 360 degrees around the base 10, and the cross section of the enclosed wind deflector 60 is rectangular. Alternatively, the wind deflector 60 may be a semi-enclosed enclosure, and the baffle may be enclosed in other shapes, such as a circle, oval, or other shaped.

In this embodiment, the wind deflector 60, the base 10 and the rain cover 20 are fixedly connected by a plurality of fixing members 70. Specifically, each fixing piece 70 is bent to be V-shaped, a bending point in the middle of the V-shaped fixing piece 70 is fixedly connected with the inner wall of the wind deflector 60, one end of the opening of the V-shaped fixing piece 70 is fixedly connected with the rain-proof cover plate 20, and the other end of the opening of the fixing V-shaped fixing piece 70 is fixedly connected with the base 10.

The present embodiment also differs from the present embodiment in that in the present embodiment, the first air duct 11 is a constant cross-section duct. I.e. the sleeve 13 is straight.

Example III

Referring to fig. 6 and 7, the difference between the present embodiment and the second embodiment is that two hollow pipes 30 are provided in the first air duct 11 side by side, and the two hollow pipes 30 are connected by a connection block 34. The air exhausting device 40 is arranged in each air passing pipe 30, a third air passage 32 is arranged between the two air passing pipes 30 and the first air passage 11, and a check plate 50 is arranged on the third air passage 32.

Example IV

Referring to fig. 8, the present embodiment differs from the first embodiment in that the structure of the wind deflector 60 is different, and thus only the structure of the wind deflector 60 is shown. In this embodiment, the wind deflector 60 includes a multi-stage ejector plate 61 disposed from inside to outside. The air deflector 60 is arranged so that the air flow is subjected to a smooth pressure differential, facilitating the evacuation of the air.

Example five

Referring to fig. 9, this embodiment is different from the first embodiment in that the structure of the flashing 20 is different, and thus only the structure of the flashing 20 is shown. In this embodiment, the rain-proof cover 20 includes a flat plate 21 at the bottom and a bending plate 22 disposed above the flat plate 21, where the bending plate 22 is bent upwards to form a protrusion with an acute angle. By the arrangement, the influence of natural wind on the resistance of the hood exhaust can be reduced, and the sound during rain falling can be reduced.

Example six

Referring to fig. 10, the present embodiment is different from the fifth embodiment in that the structure of the flashing 20 is different, and thus only the structure of the flashing 20 is shown. In this embodiment, the middle portion of the rain-proof cover 20 is bent upward to form a protrusion at an acute angle, so that the effect is the same as that of the fifth embodiment, but the material is saved.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a multi-purpose cap of airing exhaust, includes the base that has first air flue and locates outside the base and be located rain-proof apron of first air flue top, its characterized in that: the air exhaust device is characterized by further comprising an air exhaust pipe arranged in the first air passage, wherein a second air passage communicated with the first air passage is arranged in the air exhaust pipe, an exhaust device capable of being opened and closed at regular time is arranged in the second air passage, a user concentrates an exhaust period, the exhaust device is started instead of the concentrated exhaust period, and the exhaust device is closed; and a through hole is reserved between the through hole pipe and the first air passage to form a third air passage, and a check plate for sealing the third air passage is arranged on the base or the through hole pipe.

2. The multi-purpose exhaust hood of claim 1, wherein: the air draft device comprises a motor, an impeller arranged on an output shaft of the motor and a timing/constant pressure/constant speed opening and closing device electrically connected with the motor.

3. The multi-purpose exhaust hood of claim 1, wherein: the cross section of the first air passage is round, oval or polygonal.

4. The multi-purpose exhaust hood of claim 1, wherein: the first air passage is a constant cross-section passage, or the first air passage is a variable cross-section passage.

5. The multi-purpose exhaust hood of claim 1, wherein: the base is externally connected with a plurality of fixing rods, and the rain-proof cover plate is fixed on the tops of the fixing rods.

6. The multi-purpose exhaust hood of claim 1, wherein: the rain-proof cover plate is characterized in that a wind shield is further arranged outside the base, the wind shield surrounds the base in a 360-degree full-closed mode, and the wind shield, the base and the rain-proof cover plate are fixedly connected through a plurality of fixing pieces.

7. The multi-purpose exhaust hood of claim 6, wherein: the fixing piece is bent to be V-shaped, a bending point in the middle of the V-shaped fixing piece is fixedly connected with the inner wall of the wind shield, one end of the opening of the V-shaped fixing piece is fixedly connected with the rain-proof cover plate, and the other end of the opening of the V-shaped fixing piece is fixedly connected with the base.

8. The multi-purpose exhaust hood of claim 1, wherein: the outer edge of the rain-proof cover plate is provided with a water dripping edge.

9. The multi-purpose exhaust hood of claim 1, wherein: the second air passage is a constant cross-section passage, or the second air passage is a variable cross-section passage.

10. The multi-purpose exhaust hood of claim 1, wherein: the check plate is of a check structure which can be opened by natural wind and closed by dead weight, or the check plate is opened and closed by an electromagnetic valve.