CN219785202U

CN219785202U - Atomizing spray valve

Info

Publication number: CN219785202U
Application number: CN202320895688.9U
Authority: CN
Inventors: 郗真超; 吕土生; 赵多顺
Original assignee: Guangzhou Ascend Precision Machinery Co ltd
Current assignee: Guangzhou Ascend Precision Machinery Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-10-03
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses an atomization spraying valve, which comprises a valve body and a spray pipe, wherein the proximal end of the spray pipe is connected with the valve body, the spray pipe comprises an inner pipe and an outer pipe, the outer pipe is sleeved on the periphery of the inner pipe, a first air inlet channel is formed between the outer pipe and the inner pipe, a first liquid inlet channel is arranged in the inner pipe, the valve body is used for conveying air into the first air inlet channel and high-viscosity reagent into the first liquid inlet channel, the distal end of the outer pipe is provided with a nozzle, the distal end of the inner pipe extends into the nozzle, the periphery of the distal end of the inner pipe is provided with a protruding part, the protruding part forms a first guide wall positioned at the proximal end and a second guide wall positioned at the distal end, the inner periphery of the nozzle forms a third guide wall, the distance between the second guide wall and the third guide wall is smaller than the distance between the inner wall of the outer pipe and the outer wall of the inner pipe, an atomization cavity is formed between the second guide wall and the third guide wall, the distal end of the nozzle is provided with an atomization opening, liquid and gas are mixed in the atomization cavity, and atomized and then sprayed out of the atomization opening.

Description

Atomizing spray valve

Technical Field

The utility model is used in the technical field of spraying equipment, and particularly relates to an atomization spraying valve.

Background

In the production processes of prefilled tube wall spraying, diagnostic reagent spraying, blood collection tube inner wall spraying, medicine bracket spraying, solvent-bonded plasticizer spraying, trace water mist/humidification, silica gel surface spraying in industrial manufacturing industry and the like, a spraying valve is required to uniformly spray reagents on various surfaces or inner walls, but when the existing atomization spraying valve is used for spraying, high-viscosity reagent atomization spraying can be realized only by high air pressure, and the spraying is uneven.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provides an atomization spraying valve which can realize spraying of a high-concentration reagent under normal pressure.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an atomizing spraying valve, includes valve body and spray tube, the proximal end of spray tube with the valve body links to each other, the spray tube includes inner tube and outer tube, the outer tube cover is established the periphery of inner tube, the outer tube with form first inlet channel between the inner tube, be equipped with first inlet channel in the inner tube, the valve body be used for to carry air in the first inlet channel and to carry high viscosity reagent in the first inlet channel, the distal end of outer tube is equipped with the nozzle, the distal end of inner tube stretches into inside the nozzle, the periphery of inner tube distal end is equipped with the bulge, the bulge forms the first guide wall that is located the proximal end and the second guide wall that is located the distal end, the inner circumference of nozzle forms the third guide wall, the second guide wall with distance between the third guide wall is less than the distance between the outer tube inner wall with the inner tube outer wall, the second guide wall with form the chamber between the third guide wall, the distal end of nozzle is equipped with the atomizing mouth, the liquid is in the atomizing chamber, after atomizing the atomizing chamber is mixed in the atomizing mouth.

Preferably, a second air inlet channel and a second liquid inlet channel are arranged in the valve body, the second air inlet channel is communicated with the first air inlet channel, and the second liquid inlet channel is communicated with the first liquid inlet channel.

Preferably, the second air inlet channel is annular in cross section along the radial direction of the second air inlet channel, and the second air inlet channel is positioned at the periphery of the second liquid inlet channel.

Preferably, a connector is arranged in the valve body, the connector is arranged at the proximal end of the spray pipe, a third liquid inlet channel is arranged in the connector, the first liquid inlet channel, the third liquid inlet channel and the second liquid inlet channel are sequentially communicated, and the distal end of the connector is connected with the proximal end of the outer pipe and seals the second air inlet channel.

Preferably, a mounting groove for inserting the spray pipe is formed in the valve body, the connector is arranged in the mounting groove, and a first sealing ring is arranged on the periphery of the connector.

Preferably, a second sealing ring sleeved on the outer periphery of the outer tube is arranged in the mounting groove, and the second sealing ring is positioned between the outer tube and the valve body.

Preferably, an air inlet is formed in the outer wall of the outer tube, the air inlet is located inside the valve body, and the second air inlet channel is communicated with the first air inlet channel through the air inlet.

Preferably, a locking screw is arranged in the valve body, and the locking screw is connected with the outer wall of the outer tube.

Preferably, a heating device for heating the liquid in the valve body is arranged on the periphery of the valve body.

Preferably, a supporting frame is arranged between the inner pipe and the outer pipe, the inner side of the supporting frame is connected with the inner pipe, and the outer side of the supporting frame is connected with the outer pipe.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when the first air inlet channel of the atomization spraying valve is used for air inlet, air passes through the space between the second guide wall and the third guide wall, the space through which the air passes is suddenly reduced due to the protruding part, the air flow speed is suddenly accelerated, and meanwhile, the first liquid inlet channel is led with a high-viscosity reagent, so that the air passing through the space between the second guide wall and the third guide wall and the high-viscosity reagent conveyed by the far end of the first liquid inlet channel are fully mixed and atomized at a nozzle and sprayed out through an atomization opening, the atomization spraying effect is achieved, and the atomization spraying valve can realize the atomization spraying of the high-viscosity reagent under the common air pressure, and has good atomization effect and uniform spraying.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of one embodiment of the present utility model;

FIG. 2 is a side view of one embodiment of the present utility model;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

fig. 4 is an enlarged view at B in fig. 3.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Wherein, fig. 1, fig. 2, fig. 3 and fig. 4 show reference direction coordinate systems of embodiments of the present utility model, and the embodiments of the present utility model are described below with reference to the directions shown in fig. 1, fig. 2, fig. 3 and fig. 4.

An embodiment of the present utility model provides an atomized spray valve, referring to fig. 1 and 2, including a valve body 100 and a spray tube 200, a proximal end of the spray tube 200 is connected to the valve body 100, the spray tube 200 includes an inner tube 210 and an outer tube 220, the outer tube 220 is sleeved on an outer circumference of the inner tube 210, a first air inlet channel 230 is formed between the outer tube 220 and the inner tube 210, a first liquid inlet channel 240 is provided in the inner tube 210, the valve body 100 is used for conveying air into the first air inlet channel 230 and high viscosity reagent into the first liquid inlet channel 240, a distal end of the outer tube 220 is provided with a nozzle 300, a distal end of the inner tube 210 extends into the nozzle 300, referring to fig. 4, a protrusion 211 is provided on an outer circumference of a distal end of the inner tube 210, the protrusion 211 forms a first guide wall 212 at a proximal end and a second guide wall 213 at a distal end, an inner circumference of the nozzle 300 forms a third guide wall 320, a distance between the second guide wall 213 and the third guide wall 320 is smaller than a distance between an inner wall of the outer tube 220 and an outer wall of the inner tube 210 in conjunction with fig. 3, an atomization cavity is formed between the second guide wall 213 and the third guide wall 320, an atomization opening 310 is formed at the distal end of the nozzle 300, specifically, the inner diameter of the nozzle 300 gradually decreases from the proximal end to the distal end to form the atomization opening 310, liquid and gas are mixed in the atomization cavity and sprayed out of the atomization opening 310 after atomization, when the first air inlet channel 230 of the atomized spray valve is used for air intake, when the gas passes between the second guide wall 213 and the third guide wall 320, the space through which the gas passes is suddenly reduced due to the protrusion 211, the gas flow speed is suddenly accelerated, and simultaneously, the first liquid inlet channel 240 is led into the high viscosity reagent, so that the gas passing through the space between the second guide wall 213 and the third guide wall 320 and the high viscosity reagent conveyed at the distal end of the first liquid inlet channel 240 are fully mixed at the nozzle 300, atomized and sprayed out through the atomization opening 310, the atomization spraying valve can realize the atomization spraying of the high-viscosity reagent under the common air pressure, and has good atomization effect and uniform spraying.

As a preferred embodiment of the present utility model, referring to fig. 3, a second air intake passage 110 and a second liquid intake passage 120 are provided in the valve body 100, the second air intake passage 110 communicates with the first air intake passage 230, and the second liquid intake passage 120 communicates with the first liquid intake passage 240.

In some embodiments, the second air intake passage 110 has an annular cross section along a radial direction thereof, and the second air intake passage 110 is located at an outer periphery of the second liquid intake passage 120.

Referring to fig. 3, a connector 400 is disposed in the valve body 100, the connector 400 is disposed at a proximal end of the nozzle 200, a third liquid inlet channel 410 is disposed in the connector 400, the first liquid inlet channel 240, the third liquid inlet channel 410 and the second liquid inlet channel 120 are sequentially communicated, a distal end of the connector 400 is connected with a proximal end of the outer tube 220 and seals the second air inlet channel 110, and the connector 400 enables the inner tube 210 to be firmly connected with the valve body 100, and ensures sealing performance.

In some embodiments, referring to fig. 3, a mounting groove 130 for inserting the nozzle 200 is provided in the valve body 100, a coupling head 400 is provided in the mounting groove 130, and a first sealing ring 410 is provided at an outer circumference of the coupling head 400.

Preferably, referring to fig. 3, a second sealing ring 222 is disposed in the mounting groove 130 and sleeved on the outer periphery of the outer tube 220, and the second sealing ring 222 is located between the outer tube 220 and the valve body 100.

In some embodiments, referring to fig. 3, an air inlet 223 is provided on the outer wall of the outer tube 220, the air inlet 223 being located inside the valve body 100, and the second air inlet passage 110 communicates with the first air inlet passage 230 through the air inlet 223.

Preferably, referring to fig. 3, a locking screw 500 is provided in the valve body 100, and the locking screw 500 is connected to the outer wall of the outer tube 220, thereby achieving stable connection between the outer tube 220 and the valve body 100.

As a preferred embodiment of the present utility model, a heating means for heating the liquid in the valve body 100 is provided at the outer circumference of the valve body 100, so that the high viscosity reagent is heated to avoid solidification of the high viscosity reagent.

Preferably, referring to fig. 3, a supporting frame 600 is disposed between the inner tube 210 and the outer tube 220, the inner side of the supporting frame 600 is connected with the inner tube 210, the outer side of the supporting frame 600 is connected with the outer tube 220, and both ends of the inner tube 210 are provided with the supporting frames 600 to ensure the stability of the structure.

In the description of the present specification, reference to the terms "example," "embodiment," or "some embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present utility model is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and these equivalent modifications or substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. An atomized spray valve, characterized in that: the spray pipe comprises a valve body and a spray pipe, wherein the proximal end of the spray pipe is connected with the valve body, the spray pipe comprises an inner pipe and an outer pipe, the outer pipe is sleeved on the periphery of the inner pipe, a first air inlet channel is formed between the outer pipe and the inner pipe, a first liquid inlet channel is arranged in the inner pipe, the valve body is used for conveying air into the first air inlet channel and high-viscosity reagent into the first liquid inlet channel, a nozzle is arranged at the distal end of the outer pipe, the distal end of the inner pipe stretches into the nozzle, a protruding part is arranged at the periphery of the distal end of the inner pipe, a first guide wall positioned at the proximal end and a second guide wall positioned at the distal end are formed on the protruding part, a third guide wall is formed on the inner periphery of the nozzle, the distance between the inner wall of the outer pipe and the outer pipe is smaller than the distance between the inner wall of the second guide wall and the third guide wall, an atomizing cavity is formed between the second guide wall and the third guide wall, an atomizing cavity is formed at the distal end of the nozzle, and after the liquid is mixed in the atomizing cavity and atomized.

2. The atomizing spray valve of claim 1, wherein: the valve body is internally provided with a second air inlet channel and a second liquid inlet channel, the second air inlet channel is communicated with the first air inlet channel, and the second liquid inlet channel is communicated with the first liquid inlet channel.

3. The atomizing spray valve of claim 2, wherein: the section of the second air inlet channel along the radial direction of the second air inlet channel is annular, and the second air inlet channel is positioned at the periphery of the second liquid inlet channel.

4. The atomizing spray valve of claim 2, wherein: the valve body is internally provided with a connector, the connector is arranged at the proximal end of the spray pipe, a third liquid inlet channel is arranged in the connector, the first liquid inlet channel, the third liquid inlet channel and the second liquid inlet channel are sequentially communicated, and the distal end of the connector is connected with the proximal end of the outer pipe and seals the second air inlet channel.

5. The atomizing spray valve set forth in claim 4, wherein: the valve body is internally provided with a mounting groove for inserting the spray pipe, the connector is arranged in the mounting groove, and the periphery of the connector is provided with a first sealing ring.

6. The atomizing spray valve set forth in claim 5, wherein: the mounting groove is internally provided with a second sealing ring sleeved on the periphery of the outer tube, and the second sealing ring is positioned between the outer tube and the valve body.

7. The atomizing spray valve of claim 2, wherein: an air inlet is formed in the outer wall of the outer tube, the air inlet is located inside the valve body, and the second air inlet channel is communicated with the first air inlet channel through the air inlet.

8. The atomizing spray valve of claim 1, wherein: and a locking screw is arranged in the valve body and connected with the outer wall of the outer tube.

9. The atomizing spray valve of claim 1, wherein: the periphery of the valve body is provided with a heating device for heating the liquid in the valve body.

10. The atomizing spray valve of claim 1, wherein: a supporting frame is arranged between the inner pipe and the outer pipe, the inner side of the supporting frame is connected with the inner pipe, and the outer side of the supporting frame is connected with the outer pipe.