CN216521866U

CN216521866U - Nozzle, cleaning mechanism with nozzle and range hood

Info

Publication number: CN216521866U
Application number: CN202122703482.5U
Authority: CN
Inventors: 王发银; 张岩; 韩国强
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-13
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a nozzle, a cleaning mechanism applying the nozzle and a range hood, wherein the nozzle comprises a nozzle body and an air supplement component, a liquid inlet cavity and a pressurizing cavity are formed in the nozzle body, the caliber of the pressurizing cavity is smaller than that of the liquid inlet cavity, the air supplement component comprises an air supplement part arranged in the nozzle body, and an air supplement channel for gas to enter and pass and an air supplement hole for gas to flow out are formed in the air supplement part; when the nozzle is in a working state, the air supplementing part opens the pressurizing cavity, and the outlet of the air supplementing hole is positioned in the pressurizing cavity so that the air supplementing hole is communicated with the fluid of the pressurizing cavity; when the nozzle is in a non-working state, the air supplement component seals the pressurization cavity. Compared with the prior art, the utility model has the advantages that: through making the tonifying qi part seal the nozzle when out of work, can avoid the nozzle to block up, the runner switches on when spraying and guarantees the efflux blowout, realizes simultaneously that the efflux is to the washing in tonifying qi hole, guarantees the air supplement system normal operating.

Description

Nozzle, cleaning mechanism with nozzle and range hood

Technical Field

The utility model relates to cleaning equipment, in particular to a nozzle, a cleaning mechanism applying the nozzle and a range hood applying the cleaning mechanism.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

With the continuous progress of the self-cleaning technology of the range hood, steam cleaning or water cleaning is widely applied to the field of self-cleaning of the range hood, and the basic principle is that a steam generator generates steam or water pumped by a water pump, the steam or water is conveyed to a nozzle at the tail end of a spray pipe, the steam or water is quickly sprayed out of the nozzle to act on the surface of a target object, and oil stains are softened and peeled by means of chemical effects, hot melting, impact force and the like.

The existing jet nozzle is generally a cylindrical nozzle, a horn-shaped nozzle and the like, the jet for cleaning realizes the purpose of improving the jet cleaning force by improving the pressure, and the size of the nozzle is small, and only 0.1mm-0.15mm exists; the existing self-cleaning nozzle is not generally protected by a designed nozzle, and the nozzle is easily blocked by oil stains when exposed to an oil smoke environment for a long time; promote the cleaning force through constantly promoting water pressure, improved product cost on the one hand, on the other hand can destroy the surface coating of internals such as spiral case impeller, has caused spare part to rust, has shortened the life of product.

As disclosed in chinese patent application No. 202011322082.3, a small nozzle is placed between the volute and the impeller, and is only 0.1mm-0.15mm in size, which is the high pressure zone, and is necessarily blocked. This scheme promotes 360 rotatory enlargements that realize the cleaning range of shower nozzle through rivers, and then promotes the clean rate, realizes through the efflux that the shower nozzle is rotatory actually to turn into the kinetic energy of efflux into the kinetic energy of shower nozzle, and fluidic kinetic energy has reduced, and the cleaning power must descend, must need increase water pump pressure in order to ensure the cleaning power, has caused the energy extravagant.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a nozzle capable of preventing clogging and ensuring normal operation, in view of the above-mentioned drawbacks of the prior art.

A second technical problem to be solved by the present invention is to provide a cleaning apparatus using the above-described nozzle.

The third technical problem to be solved by the utility model is to provide a range hood with the cleaning device.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the utility model provides a nozzle, includes nozzle body and tonifying qi subassembly, this internal feed liquor chamber that supplies the cleaning medium to get into and pass through and the pressure boost chamber that supplies the cleaning medium to erupt that is formed with of nozzle, the bore in pressure boost chamber is less than the bore in feed liquor chamber, its characterized in that: the air supply component comprises an air supply part arranged in the nozzle body, and an air supply channel for air to enter and pass through and an air supply hole for air to flow out are formed in the air supply part;

when the nozzle is in a working state, the air supplementing part opens the pressurizing cavity, and the outlet of the air supplementing hole is positioned in the pressurizing cavity so that the air supplementing hole is communicated with the pressurizing cavity in a fluid mode;

when the nozzle is in a non-working state, the air supplement component seals the pressurization cavity.

In order to ensure that the cleaning medium is uniformly sprayed and fully supplied with air, when the nozzle is in a working state, an annular jet flow channel for spraying the cleaning medium is formed between the part of the air supply component in the pressurizing cavity and the wall surface of the nozzle body at the periphery of the pressurizing cavity, and the air supply hole is communicated with the jet flow channel in a fluid mode.

In order to further ensure that the air is fully supplemented, the air supplementing hole is inclined with the jet flow channel.

Preferably, in order to facilitate closing and opening of the pressurizing cavity, the jet flow channel is formed, the air supply part comprises a body and a head, the air supply channel is formed in the body, the air supply hole is formed in the head and penetrates through the head, the position of the air supply hole penetrating through the head is the outlet, the outer diameter of the body is matched with the inner diameter of the pressurizing cavity to seal the pressurizing cavity, and the jet flow channel is formed between the head and the wall surface of the nozzle body, which is located on the periphery of the pressurizing cavity.

More preferably, the body is cylindrical, the head is conical, and the outer diameter of the head is gradually reduced from a position close to the body to a direction far away from the body.

In order to better control the position of air supply, a neck is arranged between the body and the head, the outer diameter of the neck is smaller than that of the body and is the same as the maximum outer diameter of the head, the outer diameter of the head is gradually reduced from the joint of the head and the neck to the direction far away from the neck, and the air supply channel extends to the neck.

Preferably, the air supplement part moves linearly in the nozzle body, so that the air supplement part is in different positions to open and close the pressurizing cavity.

In order to facilitate driving the air supplement component to move, the air supplement assembly further comprises a first coil and a second coil which are arranged outside the nozzle body, the first coil and the second coil are arranged at intervals along the movement direction of the air supplement component, one coil is used for driving the air supplement component to extend into the pressurizing cavity to seal the pressurizing cavity, the other coil is used for driving the air supplement component to withdraw from the pressurizing cavity for a certain distance to open the pressurizing cavity, and the air supplement component further comprises a moving part which is made of ferromagnetic materials and used for being matched with the first coil and the second coil.

Preferably, in order to facilitate the movement of the body and the head, the movement path of the body and the head is defined at the same time, the air supply component makes linear movement in the nozzle body, the air supply component further comprises a first coil and a second coil which are arranged outside the nozzle body, the first coil and the second coil are arranged at intervals along the movement direction of the air supply component, one coil is used for driving the air supply component to extend into the pressurizing cavity to seal the pressurizing cavity, the other coil is used for driving the air supply component to withdraw from the pressurizing cavity for a certain distance to open the pressurizing cavity, the air supply component further comprises a movement part which is made of a ferromagnetic material and is matched with the first coil and the second coil, and the movement part is located on the outer side of the body and is attached to the wall surface of the nozzle body, which is located on the periphery of the liquid inlet cavity.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: a cleaning mechanism, characterized by: a nozzle as described in any of the above is applied.

The technical scheme adopted by the utility model for solving the third technical problem is as follows: a range hood, its characterized in that: a cleaning mechanism as described above is applied.

Compared with the prior art, the utility model has the advantages that: the nozzle is closed when the air supplementing part does not work, so that the nozzle can be prevented from being blocked, the flow channel is communicated during spraying to ensure jet flow to be sprayed out, and meanwhile, the air supplementing hole is flushed by the jet flow, so that the normal operation of an air supplementing system is ensured; the cavitation jet technology for realizing jet center air supplement through the air supplement part and the nozzle body has the advantages of fully and uniformly supplementing air, ensuring the stability of bubble jet and realizing the purpose of improving the cleaning force.

Drawings

FIG. 1 is a schematic view of a nozzle according to an embodiment of the present invention;

FIG. 2 is a front view of a nozzle of an embodiment of the present invention;

FIG. 3 is a cross-sectional view (in operation) of a nozzle in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view (non-operating) of a nozzle in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a gas compensation member of the nozzle according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, a nozzle includes a nozzle body 1 and an air supplement assembly, wherein the air supplement assembly includes an air supplement component 21 disposed in the nozzle body 1, and a first coil 22 and a second coil 23 disposed outside the nozzle body 1.

The nozzle is a cavitation nozzle, the nozzle body 1 is cylindrical, a liquid inlet cavity 11 and a pressurizing cavity 12 are formed in the nozzle body, wherein the liquid inlet cavity 11 is used for being communicated with an external cleaning medium source, the pressurizing cavity 12 is coaxially arranged with the liquid inlet cavity 11 and is in fluid communication with the liquid inlet cavity 11, and the cleaning medium can be sprayed out through the pressurizing cavity 12 after entering the liquid inlet cavity 11. The pressurizing cavity 12 and the liquid inlet cavity 11 are both cylindrical, and the caliber of the pressurizing cavity 12 is smaller than that of the liquid inlet cavity 11.

With reference to fig. 5, the air compensation member 21 is in the form of a micro-motion air needle, preferably in one piece, comprising a body 211 and a head 212, preferably arranged coaxially with the nozzle body 1, alternatively the body 211, the head 212 and the nozzle body 1 may not be coaxial. In the present embodiment, the body 211 is cylindrical, and the head 212 is tapered with an outer diameter gradually decreasing from the connection with the body 211 to a direction away from the body 211. Alternatively, a neck 216 may be provided between the body 211 and the head 212, the neck 216 having an outer diameter smaller than the body 211 and the same as the maximum outer diameter of the head 212, wherein the head 212 has an outer diameter gradually decreasing from the junction with the neck 216. An air supply passage 213 is formed in the body 211 for fluid communication with an external air source, and the air supply passage 213 extends in the axial direction of the body 211. When the neck portion 216 is present, the gas replenishing passage 213 extends to the neck portion 216. The head 212 is provided with an air supply hole 214, the air supply hole 214 is inclined to the axis of the body 211, one end of the air supply hole 214 is communicated with the air supply channel 213, the other end penetrates through the side wall of the head 212, and the penetrating position is an outlet 2141 of the air supply hole 214. The outer diameter of the body 211 is adapted to the inner diameter of the pumping cavity 12, and zero fitting, i.e., a completely fitted state, can be achieved, so that when the body 211 enters the pumping cavity 12, the pumping cavity 12 is closed. When the gas supplementing member 21 exits the pressurizing chamber 12, once the body 211 exits, the gap between the gas supplementing member 21 and the wall surface of the nozzle body 1 at the outer periphery of the pressurizing chamber 12 forms the annular jet flow channel 13 for the cleaning medium to be ejected.

The air supplement member 21 further includes a moving portion 215 provided at an end of the outer periphery of the body 211 away from the head portion 212. In the present embodiment, the moving portion 215 has two and is symmetrically arranged, and the moving portion 215 extends to be in close contact with the inner peripheral wall of the nozzle body 21.

The first coil 22 and the second coil 23 are respectively helical and surround the outer periphery of the portion of the nozzle body 1 corresponding to the liquid inlet chamber 11, and the first coil 22 and the second coil 23 are arranged at intervals along the axial direction of the nozzle body 1, wherein the first coil 22 is close to the pressure increasing chamber 12 relative to the second coil 22. The moving part 215 is made of a ferromagnetic material and can be engaged with the first coil 22 and the second coil 23.

When the first coil 22 and the second coil 23 are respectively energized, a magnetic field is generated to push the moving portion 215 to communicate with the body 211 to move linearly along the axial direction of the nozzle body 1, and the moving portion 215 also defines the position of the body 211 so that the axis thereof is maintained on the axis of the nozzle body 1.

In the embodiment, the nozzle is mainly used for cleaning the inner cavity of the range hood, but the nozzle can also be used in any other occasions needing spray cleaning.

Referring to fig. 4, in the non-operating state of the nozzle, the body 211 of the nozzle at least partially enters the pressurizing cavity 12 to close the pressurizing cavity 12, so as to protect the nozzle body 1, and a small amount of soot adheres to the surface of the air supplement part 21.

When the nozzle needs to be opened for cleaning, the second coil 23 is electrified to generate a magnetic field, so that the air supplement part 21 moves along the axial direction of the nozzle body 1 to the direction far away from the pressurization cavity 12 until the body 211 exits the pressurization cavity 12 and the head part 212 is still positioned in the pressurization cavity 12, the air supplement hole 214 is positioned in the middle of the jet flow channel 13, and the second coil 23 is powered off, which is shown in fig. 3; meanwhile, cleaning medium is introduced into the nozzle body 1, air is introduced into the air supplement part 21, when high-pressure cleaning medium is sprayed out at high speed through the jet flow channel 13, negative pressure is formed on the periphery of the head part 212, and at the moment, air in the air supplement channel 213 is sprayed out from the air supplement hole 213 under the action of the negative pressure and mixed into jet flow to form bubble jet flow. Compared with the method that air is mixed in the periphery of the outer part of the nozzle, the air is mixed in the middle of the inner part of the nozzle, so that air bubbles are more stable, and the cleaning force of air bubble jet flow is improved. Meanwhile, when cleaning is performed each time, the air supplement part 21 is cleaned, so that the surface of the air supplement part 21 is ensured to be clean, and the problem of possible blockage on the surface is avoided.

When the nozzle finishes the cleaning operation, the first coil 22 is energized to generate a magnetic field, and the air supplement part 21 is moved in the direction of the pressurizing cavity 12 along the axial direction of the nozzle body 1 until the body 211 at least partially enters the pressurizing cavity 12, so as to close the pressurizing cavity 12 again, as shown in fig. 4.

In the above embodiments, the nozzle may be used not only for cleaning the blower system, but also for any other component or machine or the like that requires spray cleaning.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims

1. The utility model provides a nozzle, includes nozzle body (1) and tonifying qi subassembly, be formed with in nozzle body (1) and supply cleaning medium entering and through feed liquor chamber (11) and supply the pressurized cavity (12) that cleaning medium erupted, the bore of pressurized cavity (12) is less than the bore of feed liquor chamber (11), its characterized in that: the air supply component comprises an air supply part (21) arranged in the nozzle body (1), and an air supply channel (213) for air to enter and pass through and an air supply hole (214) for air to flow out are formed in the air supply part (21);

when the nozzle is in a working state, the air supplementing part (21) opens the pressurization cavity (12), and the outlet (2141) of the air supplementing hole (214) is positioned in the pressurization cavity (12) so that the air supplementing hole (214) is communicated with the pressurization cavity (12) in a fluid mode;

when the nozzle is in a non-working state, the air supplement part (21) closes the pressurization cavity (12).

2. The nozzle of claim 1, wherein: when the nozzle is in a working state, an annular jet flow channel (13) for jetting the cleaning medium is formed between the part of the air supplementing component (21) in the pressurizing cavity (12) and the wall surface of the nozzle body (1) on the periphery of the pressurizing cavity (12), and the air supplementing hole (214) is communicated with the jet flow channel (13) in a fluid mode.

3. The nozzle of claim 2, wherein: the air supply hole (214) is inclined with the jet flow channel (13).

4. The nozzle of claim 2, wherein: air supplement part (21) includes body (211) and head (212), air supplement channel (213) form in body (211), air supplement hole (214) are seted up in head (212) and are run through head (212), the position that air supplement hole (214) run through head (212) does export (2141), the internal diameter adaptation of the external diameter of body (211) and booster cavity (12) can seal booster cavity (12), jet channel (13) form and are located between the wall of booster cavity (12) periphery at head (212) and nozzle body (1).

5. The nozzle of claim 4, wherein: the body (211) is cylindrical, the head (212) is conical, and the outer diameter of the head (212) is gradually reduced from the position close to the body (211) to the direction far away from the body (211).

6. The nozzle of claim 4, wherein: a neck (216) is arranged between the body (211) and the head (212), the outer diameter of the neck (216) is smaller than that of the body (211) and is the same as the maximum outer diameter of the head (212), the outer diameter of the head (212) is gradually reduced from the connection part of the head and the neck (216) to the direction far away from the neck (216), and the air supply channel (213) extends to the neck (216).

7. The nozzle of any one of claims 1 to 6, wherein: the air supplement component (21) moves linearly in the nozzle body (1).

8. The nozzle of claim 7, wherein: the air supplement component further comprises a first coil (22) and a second coil (23) which are arranged outside the nozzle body (1), the first coil (22) and the second coil (23) are arranged at intervals along the movement direction of the air supplement component (21), one coil is used for driving the air supplement component (21) to extend into the pressurizing cavity (12) to seal the pressurizing cavity (12), the other coil is used for driving the air supplement component (21) to withdraw from the pressurizing cavity (12) for a certain distance to open the pressurizing cavity (12), and the air supplement component (21) further comprises a movement part (215) which is made of ferromagnetic materials and used for being matched with the first coil (22) and the second coil (23).

9. The nozzle of any one of claims 4 to 6, wherein: the air supply component (21) moves linearly in the nozzle body (1), the air supply component also comprises a first coil (22) and a second coil (23) which are arranged outside the nozzle body (1), the first coil (22) and the second coil (23) are arranged at intervals along the movement direction of the air supplementing part (21), one coil is used for driving the air supplement component (21) to extend into the pressurizing cavity (12) to seal the pressurizing cavity (12), the other coil is used for driving the air supplement component (21) to withdraw from the pressurizing cavity (12) for a certain distance to open the pressurizing cavity (12), the air supplement component (21) also comprises a moving part (215) which is made of ferromagnetic material and is used for being matched with the first coil (22) and the second coil (23), the moving part (215) is positioned on the outer side of the body (211) and is attached to the wall surface of the nozzle body (1) positioned on the periphery of the liquid inlet cavity (11).

10. A cleaning mechanism, characterized by: use of a nozzle according to any one of claims 1 to 9.

11. A range hood, its characterized in that: use of a cleaning mechanism according to claim 10.