Windproof nozzle

Abstract

The utility model belongs to the technical field of nozzles, and particularly relates to a windproof nozzle which comprises a shell, the shell is provided with an inner cavity, and a nozzle is arranged at one end of the inner cavity; the base is fixed at the bottom of the shell; a liquid inlet channel is arranged in the base and is provided with a high-pressure section and a low-pressure section which are connected, and the channel section area of the high-pressure section is smaller than that of the low-pressure section; a first air inlet is further formed in the low-pressure section, and the low-pressure section is communicated with air outside the shell through the first air inlet; the flow guide seat is connected with the base, the flow guide seat is provided with a flow guide channel, and the flow guide channel comprises a first flow guide section communicated with the low-pressure section; the flow guide base further comprises a spraying cavity communicated with the spraying opening. The flow guide channel further comprises a second flow guide section communicated with the spraying cavity. By combining the flow guide seat and the base, the windproof effect of the nozzle is improved; and meanwhile, the split structure of the flow guide seat and the base facilitates manufacturing of the windproof nozzle and forming of a complex liquid flow channel in the windproof nozzle.

Description

Technical Field

[0001] The utility model belongs to the technical field of nozzles, in particular to a windproof nozzle. Background Art

[0002] Windproof nozzles are commonly used in agricultural irrigation, connected to water pipes and spraying liquids such as pesticides. The existing nozzles have too small water mist particles. When there is wind outside, the water mist sprayed by the nozzles is easily blown away by the outside wind, affecting the spraying effect. The Chinese utility model application No. 202220746546.1 discloses a windproof nozzle and a sprinkler irrigation system. The windproof effect of the windproof nozzle in the patent is not ideal, and a windproof nozzle with better windproof effect is now needed. Summary of the invention

[0003] The utility model aims to provide a windproof nozzle with better windproof effect.

[0004] The purpose of the utility model is achieved in this way:

[0005] A windproof nozzle comprises a shell, the shell has an inner cavity, one end of the inner cavity is provided with a nozzle; and further comprises:

[0006] A base is fixed to the bottom of the shell; a liquid inlet channel is provided in the base, and the liquid inlet channel has a high-pressure section and a low-pressure section connected to each other, and the channel cross-sectional area of ​​the high-pressure section is smaller than the channel cross-sectional area of ​​the low-pressure section; a first air inlet is also provided on the low-pressure section, and the gas outside the shell is connected through the first air inlet;

[0007] A flow guide seat connected to the base, the flow guide seat is provided with a flow guide channel, the flow guide channel includes a first flow guide section connected to the low-pressure section; the flow guide seat also includes a spray cavity connected to the nozzle, and the flow guide channel also includes a second flow guide section connected to the spray cavity;

[0008] The channel cross-sectional areas of the first flow guide section, the second flow guide section and the nozzle are all larger than the channel cross-sectional area of ​​the high-pressure section.

[0009] Furthermore, the guide seat is separated by the first guide section and the spray chamber above and below, respectively, the second guide section is formed between the outer wall of the guide seat and the shell, the guide seat at the first guide section is provided with a first flow hole connecting the first guide section and the second guide section, and the guide seat at the spray chamber is provided with a second flow hole connecting the spray chamber and the second guide section.

[0010] Furthermore, a plurality of the second flow holes are provided and are evenly distributed around the spray cavity.

[0011] Furthermore, a connecting boss is provided at the lower end of the guide seat, and an annular groove for mounting the connecting boss is provided on the inner wall of the base.

[0012] Furthermore, the shell is provided with a second air inlet opposite to the first air inlet, and the gas outside the shell enters the base through the second air inlet and the first air inlet in sequence.

[0013] Furthermore, a sealing member is provided on the outer edge of the base, the second flow guide section is formed on one side of the sealing member, and a gas flow portion connecting the first air inlet and the second air inlet is provided on the other side of the sealing member.

[0014] Furthermore, an atomizing gasket is provided between the guide seat and the nozzle, and an atomizing port for fluid to pass through is provided in the atomizing gasket.

[0015] Furthermore, a conical member protruding toward the nozzle is provided in the spray chamber, and a surface of the conical member is used to contact the fluid in the spray chamber.

[0016] Furthermore, the shell and the base are provided with bosses. When the base is installed in the shell, the bosses of the shell and the bosses on the base abut against each other up and down.

[0017] Furthermore, the channel cross-sectional areas of the first guide section, the second guide section and the nozzle are at least three times the channel cross-sectional area of ​​the high-pressure section.

[0018] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0019] This patent increases the windproof effect of the nozzle by combining the structure of the guide seat and the base; at the same time, the split structure of the guide seat and the base facilitates the manufacture of the windproof nozzle and the forming of complex liquid flow channels in the windproof nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the nozzle in Example 1.

[0021] Figure 2 It is a schematic cross-sectional view of the nozzle in Example 1.

[0022] Figure 3 Schematic diagram of the explosion of the nozzle in Example 1.

[0023] Figure 4 It is a schematic diagram of the structure of the guide seat in Example 2.

[0024] The meaning of the symbols in the figure:

[0025] 1. Shell; 11. Inner cavity; 12. Nozzle; 13. Second air inlet; 14. Atomizing gasket; 141. Atomizing port; 15. Boss portion; 16. Gas flow portion;

[0026] 2. Base; 211. High-pressure section; 212. Low-pressure section; 22. First air inlet; 23. Annular groove; 24. Sealing member;

[0027] 3. flow guide seat; 311. first flow guide section; 312. second flow guide section; 32. spray chamber; 33. first flow hole; 34. second flow hole; 35. connecting boss; 36. conical member; DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with specific embodiments:

[0029] Embodiment 1:

[0030] A windproof nozzle, comprising a shell 1, a base 2, and a guide seat 3, such as Figure 1 As shown, the shell 1 is cylindrical and hollow inside, so that an inner cavity 11 for installing the base 2 and the guide seat 3 is formed inside the shell 1, and a nozzle 12 is provided at one end of the inner cavity 11, and the nozzle 12 is used to spray liquid outward.

[0031] Combination Figure 1-3 As shown, the nozzle 12 is arranged at the top of the shell 1, and an open installation port is provided at the bottom of the shell 1. The guide seat 3 and the base 2 are installed in the shell 1 and closed in turn through the installation port to realize the windproof nozzle in this patent; in addition, in order to facilitate the connection between the base 2 and the shell 1, the patent provides an annular boss portion 15 on the outer edge of the shell 1 and the outer edge of the base 2. During installation, the boss portion 15 of the base 2 and the boss portion 15 of the shell 1 are arranged and fixed relative to each other up and down, which increases the contact area between the base 2 and the shell 1, thereby facilitating the setting of the connecting structure, and increasing the sealing between the base 2 and the shell 1 by the upper and lower abutment of the boss portion 15.

[0032] Combination Figure 1 , 3 As shown, the base 2 in this patent is cylindrical, and a liquid inlet channel is provided in the base 2. The liquid inlet channel has a high pressure section 211 and a low pressure section 212 connected to each other. The channel cross-sectional area of ​​the high pressure section 211 is smaller than the channel cross-sectional area of ​​the low pressure section 212. The low pressure section 212 is also provided with a first air inlet 22, and the gas outside the shell 1 is connected through the first air inlet 22. Figure 2 , 3As shown, the high-pressure section 211 and the low-pressure section 212 are directly formed in the base 2 when the base 2 is manufactured. The channel cross-sections of the high-pressure section 211 and the low-pressure section 212 are both circular, and the low-pressure section 212 is connected to the high-pressure section 211 at the top and bottom respectively; the first air inlet 22 is opened on the outer walls of both sides of the low-pressure section 212. In this embodiment, the shell 1 is provided with a second air inlet 13 opposite to the first air inlet 22, and the gas outside the shell 1 enters the base 2 through the second air inlet 13 and the first air inlet 22 in turn. During operation, when the water flows from the low-pressure section 212 into the high-pressure section 211, it will generate suction on the first air inlet 22 and the second air inlet 13, so that the water flows while moving and mixes with other gases entering from the first air inlet 22 and the second air inlet 13 to produce an atomization effect.

[0033] The guide seat 3 is fixed on the base 2, and the guide seat 3 is provided with a guide channel, which includes a first guide section 311 connected to the low-pressure section 212; the guide seat 3 also includes a spray chamber 32 connected to the nozzle 12, and the guide channel also includes a second guide section 312 connected to the spray chamber 32; the channel cross-sectional area of ​​the first guide section 311, the second guide section 312 and the nozzle 12 is smaller than the channel cross-sectional area of ​​the high-pressure section 211. In this embodiment, the channel cross-sectional area of ​​the first guide section 311, the second guide section 312 and the nozzle 12 is at least three times the channel cross-sectional area of ​​the high-pressure section 211; Figure 2 , 3 As shown, in this patent, a connecting boss 35 is provided at the lower end of the guide seat 3, and an annular groove 23 for installing the connecting boss 35 is provided on the inner wall of the base 2. When connected, the connecting boss 35 is inserted into the annular groove 23 to achieve positioning, and glue or fasteners can be set between the connecting boss 35 and the annular groove 23 to achieve fixation.

[0034] In fact, the guide seat 3 is separated from the first guide section 311 and the spray chamber 32 by a partition, the spray chamber 32 is arranged upward, and the first guide section 311 is arranged downward and connected to the low-pressure section 212; in this patent, the outer diameter of the guide seat 3 is smaller than the inner chamber 11 of the shell 1, so that the second guide section 312 is formed between the outer wall of the guide seat 3 and the shell 1, and at this time, the guide seat 3 at the first guide section 311 is provided with a first flow hole 33 connecting the first guide section 311 and the second guide section 312, and the guide seat 3 at the spray chamber 32 is provided with a second flow hole 34 connecting the spray chamber 32 and the second guide section 312; in this patent, a plurality of the first flow holes 33 and the second flow holes 34 are provided, which are arranged around the base 2 and the guide seat 3 in sequence. When the liquid flows, the liquid enters the first guide section 311 from the low-pressure section 212, then enters the second guide section 312 through the first flow hole 33, then enters the spray chamber 32 through the second flow hole 34, and then sprays out from the nozzle 12. When the liquid passes through the guide seat 3, the bent liquid channel in the guide seat 3 will fully mix the gas and liquid, making it more powerful when spraying, thereby achieving a windproof effect. Therefore, this patent combines the structure of the guide seat 3 and the base 2 to increase the windproof effect of the nozzle; at the same time, the split structure of the guide seat 3 and the base 2 facilitates the manufacture of the windproof nozzle and the formation of complex liquid flow channels in the windproof nozzle.

[0035] Furthermore, a seal 24 is provided at the outer edge of the base 2, the second guide section 312 is formed on one side of the seal 24, and a gas flow portion 16 connecting the first air inlet 22 and the second air inlet 13 is provided on the other side of the seal 24. The seal 24 is a sealing ring provided at the outer edge of the base 2, and the gas flow portion 16 and the second guide section 312 are isolated by the sealing ring, and at the same time, the connection between the base 2 and the housing 1 is increased by the sealing ring.

[0036] Furthermore, an atomizing gasket 14 is provided between the guide seat 3 and the nozzle 12. The atomizing gasket 14 is made of stainless steel and has an atomizing port 141 for fluid to pass through. The liquid is sprayed outward through the fine atomizing port 141, which facilitates liquid atomization, thereby making the nozzle work better.

[0037] Embodiment 2:

[0038] Most structures of this embodiment are the same as those of the embodiment 1, and the difference is that in this embodiment, a conical member 36 protruding toward the nozzle 12 is provided in the spray chamber 32, and the surface of the conical member 36 is used to contact the fluid in the spray chamber 32, while in the embodiment 1, the conical member 36 is not provided in the spray chamber 32. In this embodiment, after the liquid enters the spray gun, the liquid hits the conical member 36, and spiral flow is achieved through the conical member 36, so that part of the liquid is mixed into larger water droplets, and the liquid is not easily blown away when it is sprayed out.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A windproof nozzle, comprising a housing (1), the housing (1) having an inner cavity (11), one end of the inner cavity (11) being provided with a nozzle (12); characterized in that: Also included are: A base (2) is fixed to the bottom of the shell (1); a liquid inlet channel is provided in the base (2), the liquid inlet channel has a high-pressure section (211) and a low-pressure section (212) connected to each other, the channel cross-sectional area of ​​the high-pressure section (211) is smaller than the channel cross-sectional area of ​​the low-pressure section (212); a first air inlet (22) is also provided on the low-pressure section (212), and the gas outside the shell (1) is connected through the first air inlet (22); A flow guide seat (3) connected to the base (2), the flow guide seat (3) being provided with a flow guide channel, the flow guide channel comprising a first flow guide section (311) connected to the low-pressure section (212); the flow guide seat (3) further comprising a spray chamber (32) connected to the spray port (12), the flow guide channel further comprising a second flow guide section (312) connected to the spray chamber (32); The channel cross-sectional areas of the first flow guide section (311), the second flow guide section (312) and the nozzle (12) are all greater than the channel cross-sectional area of ​​the high-pressure section (211).

2. A windproof nozzle according to claim 1, characterized in that: The guide seat (3) is separated from the first guide section (311) and the spray chamber (32) above and below, respectively; the second guide section (312) is formed between the outer wall of the guide seat (3) and the shell (1); the guide seat (3) at the first guide section (311) is provided with a first flow hole (33) connecting the first guide section (311) and the second guide section (312); the guide seat (3) at the spray chamber (32) is provided with a second flow hole (34) connecting the spray chamber (32) and the second guide section (312).

3. A windproof nozzle according to claim 2, characterized in that: A plurality of second flow holes (34) are provided and are evenly distributed around the spray chamber (32).

4. A windproof nozzle according to claim 1, characterized in that: A connecting boss (35) is provided at the lower end of the guide seat (3), and an annular groove (23) for mounting the connecting boss (35) is provided on the inner wall of the base (2).

5. The windproof nozzle according to claim 1, characterized in that: The shell (1) is provided with a second air inlet (13) opposite to the first air inlet (22), and the gas outside the shell (1) enters the base (2) through the second air inlet (13) and the first air inlet (22) in sequence.

6. A windproof nozzle according to claim 5, characterized in that: A sealing member (24) is provided on the outer edge of the base (2), the second flow guide section (312) is formed on one side of the sealing member (24), and a gas flow portion (16) connecting the first air inlet (22) and the second air inlet (13) is provided on the other side of the sealing member (24).

7. A windproof nozzle according to claim 1, characterized in that: An atomizing gasket (14) is also provided between the flow guide seat (3) and the nozzle (12), and an atomizing port (141) is provided in the atomizing gasket (14) for fluid to pass through.

8. The windproof nozzle according to claim 1, characterized in that: A conical member (36) protruding toward the nozzle (12) is provided in the spray chamber (32), and a surface of the conical member (36) is used for contacting the fluid in the spray chamber (32).

9. The windproof nozzle according to claim 1, characterized in that: The shell (1) and the base (2) are provided with a boss portion (15); when the base (2) is installed in the shell (1), the boss portion (15) of the shell (1) and the boss portion (15) on the base (2) abut against each other vertically.

10. The windproof nozzle according to claim 1, characterized in that: The channel cross-sectional areas of the first flow guide section (311), the second flow guide section (312) and the nozzle (12) are respectively at least three times the channel cross-sectional area of ​​the high-pressure section (211).

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