An adjustable spray nozzle

Abstract

The present invention provides an adjustable spray nozzle, comprising: a spray rod, a holder, a sleeve and a plugging cap. The outer side wall of the spray rod is provided with a plurality of vertical downward spray slots, which are connected to the inner through hole of the spray rod. The lower end of the spray rod is provided with an annular protrusion, and the holder is sleeved on the spray rod and fits with the upper end surface of the annular protrusion. The upper end of the spray rod is provided with a thread, and the plugging cap is threadedly connected with the spray rod through the thread to block the end of the spray rod. The sleeve is sleeved on the spray rod and located at the spray slot, the lower end surface of the sleeve fits with the upper end surface of the holder, and the upper end surface of the sleeve corresponds to the lower end surface of the plugging cap. The plugging cap adjusts the size of the annular gap between the sleeve and the plugging cap up and down along the spray rod through the thread. When the spray rod circulates high-pressure liquid, the high-pressure liquid sprays atomized liquid from the annular gap. The present invention can improve the atomization level of the nozzle and reduce the production cost of the nozzle.

Description

Technical Field

[0001] The invention relates to the technical field of spray nozzles, in particular to an adjustable spray nozzle. Background Art

[0002] With the rapid development of mechanization, sprinklers are widely used in dust removal, field crops, lawns, nurseries and vegetable gardens for watering and spraying. Existing sprinklers have the problem of too large droplets when spraying liquids, and the spray effect cannot be adjusted in real time according to actual needs, which easily leads to poor atomization effect. Therefore, it is of great significance to provide a spray nozzle with adjustable atomized droplet size. Summary of the invention

[0003] The invention provides an adjustable spray nozzle, which solves the problem that the existing nozzle cannot adjust the droplet size during spraying, resulting in poor atomization effect, can improve the atomization level of the nozzle, and reduce the production cost of the nozzle.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An adjustable spray nozzle comprises: a spray rod, a holder, a sleeve and a plug cap;

[0006] The outer side wall of the spray bar is provided with a plurality of spray slots extending vertically downward, and the spray slots are connected to the inner through hole of the spray bar;

[0007] The lower end of the spray rod is provided with an annular protrusion, and the clamping seat is sleeved on the spray rod and fits with the upper end surface of the annular protrusion;

[0008] The upper end of the spray rod is provided with a thread, and the plugging cap is threadedly connected to the spray rod through the thread to seal the end of the spray rod;

[0009] The ferrule is sleeved on the spray rod and located at the spray slot, the lower end surface of the ferrule is in contact with the upper end surface of the holder, and the upper end surface of the ferrule corresponds to the lower end surface of the plugging cap;

[0010] The plugging cap is adjusted up and down along the spray rod through the thread, so that the size of the annular gap between the plugging cap and the corresponding ferrule can be adjusted;

[0011] When the high-pressure liquid flows through the spray bar, the high-pressure liquid is sprayed into atomized liquid through the annular gap.

[0012] Preferably, it also includes: an adjustment ring;

[0013] The adjusting ring is sleeved on the clamping sleeve to shield the atomized liquid sprayed from the annular gap and make the atomized liquid collide with the adjusting ring to form fine mist.

[0014] Preferably, the end face of the adjusting ring is a bevel, so that when the adjusting ring is mounted on the ferrule, the bevel and the outer wall of the ferrule form a V-shaped annular groove, and the atomized liquid sprayed from the annular gap forms a fine mist through the V-shaped annular groove.

[0015] Preferably, the ferrule is provided with an axial through hole, and the ferrule is sleeved on the spray rod through the axial through hole.

[0016] Preferably, the end surface of the ferrule is provided with a slope, and when the high-pressure liquid flows through the spray rod, the high-pressure liquid is sprayed onto the slope through the spray slot to form atomized liquid.

[0017] Preferably, the end surface of the ferrule is provided with a plurality of bosses, the bosses are arranged at the bottom of the slope, the bosses and the slope form a groove, and the high-pressure liquid is sprayed out from the spray slot to form an atomized liquid from the groove.

[0018] Preferably, a plurality of bosses are annularly arranged around the periphery of the axial through hole, and the spacing grooves between the bosses correspond to the spraying grooves, and the high-pressure liquid is sprayed onto the slope through the spacing grooves.

[0019] Preferably, the height of the boss is greater than or equal to the height of the slope.

[0020] Preferably, a pipe quick connector is provided at the bottom of the spray rod.

[0021] Preferably, at least two of the ferrules are sleeved on the spray rod, and an annular gap is formed between adjacent ferrules, so that when high-pressure liquid flows in the spray rod, a multi-layer superimposed spray water curtain is formed.

[0022] Preferably, it also includes: an outer ring sleeve;

[0023] The outer ring sleeve is sleeved on the outside of the ferrule, so that the inner wall of the outer ring sleeve and the outer wall of the ferrule form a gas-liquid mixing chamber;

[0024] When the air flow is blown in from one end of the outer ring sleeve, the gas-liquid mixing chamber forms a uniform gas-liquid mixture with the atomized liquid and air sprayed by the spray rod.

[0025] Preferably, the outer ring sleeve is a pipeline structure so that the gas-liquid mixture can be sprayed along a set direction.

[0026] Preferably, the outer ring sleeve is a clamping ring structure, the outer ring sleeve annularly sleeves two adjacent clamping sleeves together, and a spray hole is arranged on the outer ring sleeve, so that the gas-liquid mixture is sprayed out through the spray hole to form an aerosol.

[0027] Preferably, the inner wall of the outer ring sleeve is provided with a boss, and the boss is any of the following structures: a plane structure, an inclined surface structure and an arc structure.

[0028] The present invention provides an adjustable spray nozzle, comprising: a spray rod, a holder, a sleeve and a plugging cap; the outer wall of the spray rod is provided with a spray groove, the plugging cap is provided at the top of the spray rod to block the end of the spray rod, the sleeve is connected in series between the holder and the plugging cap, and is sleeved at the spray groove of the spray rod, and the plugging cap adjusts the annular gap between the sleeve and the plugging cap up and down along the spray rod to adjust the size of the atomized liquid sprayed from the annular gap. The problem that the existing spray head cannot adjust the droplet size during spraying, resulting in poor atomization effect, can be solved, the atomization level of the spray head can be improved, and the production cost of the spray head can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0030] Figure 1 It is a structural schematic diagram of an adjustable spray nozzle provided by the present invention.

[0031] Figure 2 It is a structural schematic diagram of another adjustable spray nozzle provided by the present invention.

[0032] Figure 3 It is a structural schematic diagram of the spray bar provided by the present invention.

[0033] Figure 4 It is a structural schematic diagram of the ferrule provided by the present invention.

[0034] Figure 5 It is a cross-sectional schematic diagram of the ferrule provided by the present invention.

[0035] Figure 6 It is a structural schematic diagram of the adjustment ring provided by the present invention.

[0036] Figure 7 It is a cross-sectional schematic diagram of the adjustment ring provided by the present invention.

[0037] Figure 8 It is a cross-sectional schematic diagram of the plugging cap provided by the present invention.

[0038] Fig. 9 and Fig.10 It is a schematic diagram of the installation of the outer ring sleeve provided by the present invention.

[0039] Reference numerals

[0040] 1. Spray rod, 11. Spray slot, 12. Thread, 13. Annular protrusion, 14. Pipe quick connector, 2. Plug cap, 21. Bolt hole, 3. Card sleeve, 31 Axial through hole, 32. Boss, 33. Slope, 4. Card seat, 5. Adjusting ring, 51. Inclined surface, 6. Outer ring sleeve. DETAILED DESCRIPTION

[0041] In order to enable persons skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0042] In view of the problem that the current spray head cannot adjust the droplet size during spraying, the present invention provides an adjustable spray nozzle, including: a spray rod, a holder, a sleeve and a plugging cap; the outer wall of the spray rod is provided with a spray groove, the plugging cap is provided at the top of the spray rod to block the end of the spray rod, the sleeve is connected in series between the holder and the plugging cap, and is sleeved at the spray groove of the spray rod, and the plugging cap adjusts the annular gap between the sleeve and the plugging cap up and down along the spray rod to adjust the size of the atomized liquid sprayed from the annular gap. The problem that the existing spray head cannot adjust the droplet size during spraying, resulting in poor atomization effect, can be solved, the atomization level of the spray head can be improved, and the production cost of the spray head can be reduced.

[0043] like Figures 1 to 5 As shown, an adjustable spray nozzle comprises: a spray rod 1, a holder 4, a sleeve 3 and a plugging cap 2. The outer wall of the spray rod 1 is provided with a plurality of vertical downward spray slots 11, and the spray slots 11 are connected to the inner through hole of the spray rod 1. The lower end of the spray rod 1 is provided with an annular protrusion 13, and the holder 4 is sleeved on the spray rod 1 and fits with the upper end surface of the annular protrusion 13. The upper end of the spray rod 1 is provided with a thread 12, and the plugging cap 2 is threadedly connected with the spray rod 1 through the thread 12 to block the end of the spray rod. The sleeve 3 is sleeved on the spray rod 1 and located at the spray slot 11, the lower end surface of the sleeve 3 fits with the upper end surface of the holder 4, and the upper end surface of the sleeve 3 corresponds to the lower end surface of the plugging cap 2. The plugging cap 2 is adjusted up and down along the spray rod 1 through the thread 12, so that the size of the annular gap between the plugging cap 2 and the corresponding sleeve 3 can be adjusted. When the high-pressure liquid flows through the spray bar 1, the high-pressure liquid is sprayed into atomized liquid through the annular gap.

[0044] In practical applications, the holder is sleeved on the annular protrusion of the spray rod, and a holder and a plugging cap are sleeved on the holder in sequence. The holder can be a cylindrical structure, and the upper end surface of the holder fits with the lower end surface of the plugging cap to form an annular gap. High-pressure liquid is sprayed through the annular gap to form atomized liquid. The size of the sprayed atomized liquid is adjusted by adjusting the annular gap. If the atomized liquid is too large, the annular gap can be reduced, and vice versa. It should be noted that a sealing gasket can be provided between the holder and the annular protrusion to prevent the high-pressure liquid from leaking through the connection. The nozzle adjusts the atomization degree by adjusting the size of the high-pressure liquid spray gap, which can improve the atomization level of the nozzle, simplify the nozzle structure, and reduce production costs.

[0045] like Figure 2As shown, the nozzle further includes: an adjusting ring 5, which is sleeved on the ferrule 3 to shield the atomized liquid sprayed from the annular gap and make the atomized liquid collide with the adjusting ring to form a fine mist.

[0046] Further, if Figure 6 and Figure 7 As shown, the end face of the adjusting ring 5 is a bevel 51, so that when the adjusting ring 5 is sleeved on the ferrule 3, the bevel 51 and the outer wall of the ferrule 3 form a V-shaped annular groove, and the atomized liquid sprayed from the annular gap forms a fine mist through the V-shaped annular groove.

[0047] In practical applications, the adjusting ring is set at the annular gap, so that the liquid ejected from the annular gap hits the inclined surface of the adjusting ring, and then hits the outer wall of the ferrule or the plugging cap to form finer droplets, thereby improving the atomization effect.

[0048] like Figure 4 and Figure 5 As shown, the ferrule 3 is provided with an axial through hole 31 , and the ferrule 3 is sleeved on the spray rod 1 through the axial through hole 31 . Meanwhile, the size of the axial through hole 31 matches the outer diameter of the spray rod 1 .

[0049] Furthermore, a slope 33 is provided on the end surface of the ferrule 3. When the high-pressure liquid flows through the spray rod 1, the high-pressure liquid is sprayed onto the slope 33 through the spray slot 11 to form an atomized liquid.

[0050] In practical applications, in order to achieve different atomization effects, different ferrules can be used, and the structures of the ferrules can be varied.

[0051] Furthermore, the end surface of the ferrule 3 is provided with a plurality of bosses 32, and the bosses 32 are arranged at the bottom of the slope. The bosses 32 and the slope form a groove, and the high-pressure liquid is sprayed out from the spray slot to form an atomized liquid from the groove.

[0052] Furthermore, a plurality of bosses 32 are annularly arranged around the periphery of the axial through hole 31 , and the spacing grooves between the bosses 32 correspond to the spraying grooves 11 , and the high-pressure liquid is sprayed onto the slope through the spacing grooves.

[0053] Furthermore, the height of the boss 32 is greater than or equal to the height of the slope 33. It should be noted that the height of the boss 32 determines the initial size of the annular gap.

[0054] like Figures 1 to 3 As shown, a pipe quick connector 14 is provided at the bottom of the spray bar 1.

[0055] Furthermore, at least two of the ferrules 3 are sleeved on the spray bar 1, and the annular gap is formed between adjacent ferrules 3. When high-pressure liquid flows in the spray bar, a multi-layer superimposed spray water curtain is formed. In practical applications, the outer wall of the spray bar can be provided with multiple layers of spray slots, and each layer of the spray slots corresponds to one or more ferrules to form a multi-layer spray structure, which can be applied to various sightseeing water curtains.

[0056] like Figure 8 As shown, the plugging cap 2 is provided with a bolt hole 21 , and the bolt hole 21 is adapted to the threaded end 12 of the spray rod 1 , and the plugging cap 2 is threadedly fixed to the spray rod 1 through the bolt hole 21 .

[0057] like Fig. 9 As shown, the nozzle further includes: an outer ring sleeve 6. The outer ring sleeve 6 is sleeved on the outside of the ferrule 3, so that the inner wall of the outer ring sleeve 6 and the outer wall of the ferrule 3 form a gas-liquid mixing chamber; when airflow is blown in from one end of the outer ring sleeve, the gas-liquid mixing chamber forms a uniform gas-liquid mixture with the atomized liquid and air sprayed from the spray rod.

[0058] like Fig. 9 As shown, the outer ring sleeve 6 is a pipeline structure so that the gas-liquid mixture is sprayed along a set direction. In practical applications, the nozzle can be set on a nozzle in a farm, a water tower or an indoor bathroom, and the nozzle can make the sprayed aerosol mix more uniform.

[0059] like Fig.10 As shown, the outer ring sleeve 6 is a clamping ring structure, the outer ring sleeve 6 annularly sleeves two adjacent clamping sleeves 3 together, and a spray hole is arranged on the outer ring sleeve, so that the gas-liquid mixture is sprayed out through the spray hole to form an aerosol. This structure can be used for spraying liquid medicine on various plants in the field to prevent the water droplets of the liquid medicine from being too large.

[0060] Furthermore, the inner wall of the outer ring sleeve is provided with a boss, and the boss is any of the following structures: a plane structure, an inclined surface structure, and an arc structure. Through bosses of different structures, gas and liquid collide to form gas mists of various angles, thereby obtaining different atomization effects.

[0061] It can be seen that the present invention provides an adjustable spray nozzle, including: a spray rod, a holder, a sleeve and a plugging cap; the outer wall of the spray rod is provided with a spray groove, the plugging cap is provided at the top of the spray rod to block the end of the spray rod, the sleeve is connected in series between the holder and the plugging cap, and is sleeved at the spray groove of the spray rod, and the plugging cap adjusts the annular gap between the sleeve and the plugging cap up and down along the spray rod to adjust the size of the atomized liquid sprayed from the annular gap. The problem that the existing spray head cannot adjust the droplet size during spraying, resulting in poor atomization effect, can be solved, the atomization level of the spray head can be improved, and the production cost of the spray head can be reduced.

[0062] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. An adjustable spray nozzle, characterized in that: include: Spray rod, holder, sleeve, adjusting ring and plug cap; The outer side wall of the spray bar is provided with a plurality of spray slots extending vertically downward, and the spray slots are connected to the inner through hole of the spray bar; The lower end of the spray rod is provided with an annular protrusion, and the clamping seat is sleeved on the spray rod and fits with the upper end surface of the annular protrusion; The upper end of the spray rod is provided with a thread, and the plugging cap is threadedly connected to the spray rod through the thread to seal the end of the spray rod; The ferrule is sleeved on the spray rod and located at the spray slot, the lower end surface of the ferrule is in contact with the upper end surface of the holder, and the upper end surface of the ferrule corresponds to the lower end surface of the plugging cap; The ferrule is a cylindrical structure, the upper end surface of the ferrule fits with the lower end surface of the plugging cap to form an annular gap, the high-pressure liquid is sprayed through the annular gap to form atomized liquid, and the size of the sprayed atomized liquid is adjusted by adjusting the annular gap; The plugging cap is adjusted up and down along the spray rod through the thread, so that the size of the annular gap between the plugging cap and the corresponding ferrule can be adjusted; When the high-pressure liquid flows through the spray bar, the high-pressure liquid is sprayed into atomized liquid through the annular gap; The adjusting ring is sleeved on the ferrule to shield the atomized liquid sprayed from the annular gap and make the atomized liquid collide with the adjusting ring to form fine mist; The end surface of the adjusting ring is an inclined surface, so that when the adjusting ring is sleeved on the ferrule, the inclined surface and the outer wall of the ferrule form a V-shaped annular groove, and the atomized liquid sprayed from the annular gap forms a fine mist through the V-shaped annular groove; The ferrule is provided with an axial through hole, and the ferrule is sleeved on the spray rod through the axial through hole; The end surface of the ferrule is provided with a slope, and when the high-pressure liquid flows through the spray rod, the high-pressure liquid is sprayed onto the slope through the spray slot to form atomized liquid.

2. The adjustable spray nozzle according to claim 1, characterized in that: The end surface of the ferrule is provided with a plurality of bosses, the bosses are arranged at the bottom of the slope, the bosses and the slope form a groove, and the high-pressure liquid is sprayed out from the spray slot to form an atomized liquid from the groove.

3. The adjustable spray nozzle according to claim 2, characterized in that: A plurality of bosses are annularly arranged around the periphery of the axial through hole, and the spacing grooves between the bosses correspond to the spraying grooves. High-pressure liquid is sprayed onto the slope through the spacing grooves.

4. The adjustable spray nozzle according to claim 3, characterized in that: The height of the boss is greater than or equal to the height of the slope.

5. The adjustable spray nozzle according to any one of claims 1 to 4, characterized in that: A pipeline quick connector is arranged at the bottom of the spray rod.

6. The adjustable spray nozzle according to claim 5, characterized in that: At least two of the clamping sleeves are sleeved on the spray rod, and an annular gap is formed between adjacent clamping sleeves. When high-pressure liquid flows in the spray rod, a multi-layer superimposed spray water curtain is formed.

7. The adjustable spray nozzle according to claim 6, characterized in that: Also includes: Outer ring sleeve; The outer ring sleeve is sleeved on the outside of the ferrule, so that the inner wall of the outer ring sleeve and the outer wall of the ferrule form a gas-liquid mixing chamber; When the air flow is blown in from one end of the outer ring sleeve, the gas-liquid mixing chamber forms a uniform gas-liquid mixture with the atomized liquid and air sprayed by the spray rod.

8. The adjustable spray nozzle according to claim 7, characterized in that: The outer ring sleeve is a pipeline structure, so that the gas-liquid mixture can be sprayed along a set direction.

9. The adjustable spray nozzle according to claim 8, characterized in that: The outer ring sleeve is a clamping ring structure, and the outer ring sleeve annularly sleeves two adjacent clamping sleeves together, and a spray hole is arranged on the outer ring sleeve, so that the gas-liquid mixture is sprayed out through the spray hole to form aerosol.

10. The adjustable spray nozzle according to claim 9, characterized in that: The inner wall of the outer ring sleeve is provided with a boss, and the boss is any of the following structures: a plane structure, an inclined surface structure and an arc structure.

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