Nozzle assembly capable of adjusting flow

Abstract

The utility model discloses a nozzle assembly capable of adjusting flow, which comprises a nozzle and an atomizing hood covered outside the nozzle, a feed liquid channel is arranged inside the nozzle, and a nozzle opening communicated with the feed liquid channel is arranged in the center of the nozzle. A sliding groove is formed in the end face of the atomization hood and arranged in the diameter direction of the through hole, a sliding block is arranged in the sliding groove in a sliding mode, a plurality of discharging openings matched with the nozzle openings are formed in the sliding block in the length direction of the sliding block, the diameters of all the discharging openings are different, and the diameters of all the discharging openings are not larger than the diameters of the nozzle openings. The nozzle opening is correspondingly communicated with the discharging openings with different diameters by sliding the sliding block, so that the discharging flow of the nozzle assembly is adjusted. The nozzle assembly is simple in structure and convenient to operate, the discharge flow of the nozzle assembly can be adjusted only by pushing or pulling the sliding block to enable the nozzle opening to be correspondingly communicated with the discharge openings with different diameters, different spraying requirements are met, the nozzle assembly is suitable for various spraying occasions, and the product utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spray gun accessories, particularly relates to a nozzle assembly capable of adjusting flow. BACKGROUND

[0002] The spray gun is a kind of spray equipment for atomizing liquid, and then the object to be painted is sprayed to obtain uniform and beautiful coating layer.The spray gun usually includes gun body and storage barrel, the storage barrel is used to store paint, and the storage barrel is connected to the gun body.The gun body makes wind pressure by fan, and the paint in the storage barrel is delivered to the nozzle of the gun body, and then the paint is atomized and sprayed out by wind pressure, so as to realize the effect of uniform paint spraying, with the advantages of good spraying effect, fast spraying speed, large spraying area, uniform spraying thickness, etc., suitable for different paint and spraying occasions.

[0003] For example, a spray gun for multi-color paint spraying disclosed in Chinese utility model patent (publication number: CN203791094U) includes spray gun body, the paint channel of the spray gun body is connected to pressure tank through pipeline, or connected to paint storage tank through diaphragm pump, the air channel of the spray gun body is connected to air pump through pipeline, the nozzle of the spray gun body is installed with spray head, the middle of the spray head is provided with discharge port, the discharge port is communicated with the paint channel of the spray gun body, the discharge port is provided with auxiliary air holes in the shape of plum blossom around the discharge port, and the auxiliary air holes are communicated with the air channel of the spray gun body.It is beneficial to the pressure transient of color bead after multi-color paint is sprayed out by using multi-hole plum blossom-shaped spray head, and the expected pattern is achieved, and traditional spray gun cannot spray high-viscosity paint and color separation paint;the mode of connecting pressure tank or diaphragm pump through spray gun does not need frequent charging, the hand-held spray gun is light in weight, labor intensity of workers is reduced, and work efficiency is improved.

[0004] However, the diameter of the discharge port of the spray gun disclosed in the above prior art cannot be changed, so it cannot meet the requirements of different paint or different sprayed objects on the diameter of the discharge port.Some spray guns in the prior art are provided with adjusting devices for adjusting the size of paint spraying flow, but the structure of the adjusting device is often designed to be relatively complex, the process of adjusting the spraying amount is relatively cumbersome, and the adjusting device is difficult to replace when damaged.

[0005] Therefore, it is necessary to improve the prior art. UTILITY MODEL CONTENTS

[0006] The utility model discloses a nozzle assembly capable of adjusting flow is provided, and the nozzle assembly is provided with sliding block, and the nozzle port is communicated with the discharge port of different diameters by sliding the sliding block, so as to realize the adjustment of the discharge flow of the nozzle assembly.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A nozzle assembly capable of adjusting flow rate, comprising a nozzle and an atomizing cap covering the outside of the nozzle, a gap between the atomizing cap and the nozzle for gas to flow out, an inside of the nozzle being provided with a liquid channel, a center of the nozzle being provided with a nozzle port communicating with the liquid channel; a center of the atomizing cap being provided with a through hole matched with the nozzle port, an end face of the atomizing cap being provided with a sliding groove, the sliding groove being arranged along the diameter direction of the through hole, a sliding block being slidably arranged in the sliding groove, the sliding block being provided with a plurality of discharge ports matched with the nozzle port along the length direction of the sliding block, diameters of all the discharge ports being different from each other, and diameters of all the discharge ports being not greater than the diameter of the nozzle port, the nozzle port and the discharge ports of different diameters being correspondingly communicated by sliding the sliding block to realize the adjustment of the discharge flow rate of the nozzle assembly.

[0009] Further, a side of the sliding block close to the nozzle is provided with an annular groove surrounding the outside of the discharge port, and the nozzle port is provided with an annular protrusion correspondingly matched with the annular groove.

[0010] Further, both sides of the sliding block are provided with I-shaped blocks, and a groove bottom of the sliding groove of the atomizing cap is provided with an I-shaped groove correspondingly matched with the I-shaped blocks.

[0011] Further, an end of the sliding block is provided with a handle.

[0012] Further, the liquid channel extends in a flared manner from one end close to the nozzle port to one end away from the nozzle port.

[0013] Further, the nozzle is further provided with a first air port and a second air port surrounding the outer peripheral side of the nozzle port, a pair of side air outlet blocks are symmetrically arranged on a side of the atomizing cap away from the nozzle, a side air outlet port corresponding to the second air port is arranged on an end face of the side air outlet block, and the second air port and the side air outlet port are correspondingly communicated or disconnected when the atomizing cap is rotated.

[0014] Further, a side of the atomizing cap close to the nozzle is provided with a side air outlet channel communicated with the side air outlet port, and an end of the side air outlet channel is abuttingly matched with an end face of the nozzle.

[0015] Further, an end face of a side of the nozzle close to the atomizing cap is provided with a limiting groove for limiting the side air outlet channel, and the second air port and the side air outlet port are correspondingly communicated when the side air outlet channel is stopperingly matched with the limiting groove.

[0016] Further, a side of the atomizing cap close to the nozzle is provided with an annular air plate, and the annular air plate separates the first air port and the second air port.

[0017] Further, the outer circumference of the nozzle is provided with a plurality of positioning rotation-stopping protrusions.

[0018] With the above structure, the nozzle assembly capable of adjusting flow rate has the advantages that: the nozzle assembly capable of adjusting flow rate comprises a nozzle and an atomizing cap cover outside the nozzle, a gap for gas outflow is formed between the atomizing cap and the nozzle, a liquid channel is arranged inside the nozzle, and a nozzle port communicating with the liquid channel is arranged at the center of the nozzle; a through hole matched with the nozzle port is arranged at the center of the atomizing cap, a sliding groove is arranged on the end face of the atomizing cap and is arranged along the diameter direction of the through hole, a sliding block is slidably arranged in the sliding groove, a plurality of discharge ports matched with the nozzle port are arranged on the sliding block along the length direction of the sliding block, the diameters of all the discharge ports are different from each other, and the diameters of all the discharge ports are not greater than the diameter of the nozzle port; the nozzle port and the discharge ports with different diameters are correspondingly communicated by sliding the sliding block, so that the discharge flow rate of the nozzle assembly is adjusted. The nozzle assembly has the advantages of simple structure and convenient operation, the discharge flow rate of the nozzle assembly can be adjusted by only pushing or pulling the sliding block to make the nozzle port and the discharge ports with different diameters correspondingly communicate, the requirements in different occasions or for different objects to be sprayed can be met, one nozzle assembly can be applied to various spraying occasions, and the utilization rate and universality of the product are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the following specific embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a schematic view of the overall structure of the present application;

[0021] Figure 2 is a sectional view of the overall structure of the present application Figure One ;

[0022] Figure 3 is an enlarged schematic view of the structure at A of the present application Figure 2 ;

[0023] Figure 4 is a sectional view of the overall structure of the present application Figure Two ;

[0024] Figure 5 is an exploded view of the overall structure of the present application;

[0025] Figure 6 is a schematic view of the sliding block of the present application Figure One ;

[0026] Figure 7 is a three-dimensional schematic view of the sliding block of the utility model Figure Two ;

[0027] Figure 8 is a three-dimensional schematic view of the nozzle of the utility model Figure One ;

[0028] Figure 9 is a three-dimensional schematic view of the nozzle of the utility model Figure Two ;

[0029] Figure 10 is a three-dimensional schematic view of the atomizing air cap of the utility model Figure One ;

[0030] Figure 11 is a three-dimensional schematic view of the atomizing air cap of the utility model Figure Two .

[0031] Figures 1 to 11 Reference numerals are:

[0032] 1, nozzle; 11, liquid channel; 12, nozzle opening; 121, annular protrusion; 13, first air opening; 14, second air opening; 15, limiting groove; 16, positioning rotation-stopping protrusion; 2, atomizing air cap; 21, through hole; 22, sliding groove; 221, I-shaped groove; 23, side air outlet block; 231, side air outlet; 232, side air channel; 24, annular air plate; 3, sliding block; 31, material opening; 311, annular groove; 32, I-shaped block; 33, handle. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the following disclosed specific embodiments.

[0034] In the description of the utility model, it is necessary to understand that if these terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0035] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0036] In the utility model, unless otherwise specifically defined and limited, if the terms "mounting", "connection", "connection", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise specifically defined and limited, if there is a similar description of the first feature "on" or "under" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0039] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] like Figures 1 to 11 As shown, a nozzle assembly capable of adjusting flow rate includes a nozzle 1 and an atomizing cap 2 covering the outside of the nozzle 1. A gap for gas flow is provided between the atomizing cap 2 and the nozzle 1. A liquid channel 11 is provided inside the nozzle 1, and a nozzle orifice 12 communicating with the liquid channel 11 is provided at the center of the nozzle 1. A through hole 21 cooperating with the nozzle orifice 12 is provided at the center of the atomizing cap 2. A sliding groove 22 is provided on the end face of the atomizing cap 2, and the sliding groove 22 is arranged along the diameter direction of the through hole 21. A slider 3 is slidably disposed within the sliding groove 22. The slider 3 has several outlets 31 cooperating with the nozzle orifice 12 along its own length direction. The diameter of all outlets 31 is different, and the diameter of all outlets 31 is not greater than the diameter of the nozzle orifice 12. By sliding the slider 3, the nozzle orifice 12 is connected to the outlets 31 of different diameters, thereby adjusting the flow rate of the nozzle assembly. The liquid channel 11 extends in a widening shape from one end near the nozzle 12 to the end away from the nozzle 12.

[0041] Based on the above embodiment, the utility model wants to solve is provided a kind of nozzle assembly that can adjust flow, including nozzle 1 and cover in the outside of nozzle 1 atomizing hood 2, the gap for gas to flow out between the atomizing hood 2 and nozzle 1, the inside of the nozzle 1 is provided with liquid channel 11, the center of the nozzle 1 is provided with the nozzle port 12 that is communicated with liquid channel 11;The center of the atomizing hood 2 is provided with the through-hole 21 that is cooperated with nozzle port 12, the end surface of the atomizing hood 2 is equipped with sliding groove 22, the sliding groove 22 is along the diameter direction of through-hole 21, the sliding block 3 is slidably arranged in the sliding groove 22, the sliding block 3 is along the length direction of itself and is equipped with several discharge ports 31 that are cooperated with nozzle port 12, the diameter of all discharge ports 31 is different, and the diameter of all discharge ports 31 is not greater than the diameter of the nozzle port 12, and the nozzle port 12 and the discharge port 31 of different diameter are correspondingly communicated by sliding sliding block 3, to realize the adjustment of the discharge flow of nozzle assembly.The utility model structure is simple, and it is convenient to operate, just need to push or pull sliding block 3, so that nozzle port 12 and the discharge port 31 of different diameter are correspondingly communicated, the discharge flow of nozzle assembly can be adjusted, meet the requirement in different occasions or different object to be sprayed, realize that one nozzle 1 component is suitable for multiple spraying occasions, improve the utilization rate and versatility of product.The structure is easy to clean, the sliding block 3, atomizing hood 2 and nozzle 1 can be detachably connected, when needing to clean, sliding block 3, atomizing hood 2 and nozzle 1 are respectively disassembled, and are cleaned separately, after cleaning, it is installed to spray gun body one by one again.

[0042] Specifically, when the discharge flow of nozzle 1 needs to be increased, the discharge port 31 with larger diameter is correspondingly communicated with the nozzle port 12 by pulling or pushing the sliding block 3;On the contrary, when the discharge flow of nozzle 1 needs to be reduced, the discharge port 31 with smaller diameter is correspondingly communicated with the nozzle port 12 by pulling or pushing the sliding block 3.In this embodiment, the liquid channel 11 extends in a flared shape from one end close to the nozzle port 12 to the other end away from the nozzle port 12.The liquid channel 11 is arranged in a flared shape, which has a guiding effect on the paint, and forms a constricted shape at the nozzle port 12, which is beneficial to improve the pressure and speed of paint spraying from the nozzle port 12 and improve the spraying efficiency.

[0043] As another preferred embodiment of the utility model, the side of the sliding block 3 close to the nozzle 1 is provided with an annular groove 311 surrounding the outside of the discharge port 31, and the nozzle port 12 is provided with an annular protrusion 121 corresponding to the annular groove 311.In this embodiment, as shown in Figure 3 、 Figure 7 and Figure 8As shown, the limiting cooperation between the sliding block 3 and the nozzle port 12 is realized by the cooperation between the annular protrusion 121 and the annular groove 311. When it is needed to make the nozzle port 12 correspondingly communicate with the discharge port 31 of different diameters to realize the adjustment of the discharge flow, the annular protrusion 121 is moved out of the current annular groove 311 and enters the next annular groove 311 by pushing or pulling the sliding block 3 through the handle 33.

[0044] As another preferred scheme of the utility model, both sides of the sliding block 3 are provided with an I-shaped block 32, and the groove bottom of the sliding groove 22 of the atomizing air cap 2 is provided with an I-shaped groove 221 corresponding to the I-shaped block 32. The end of the sliding block 3 is provided with a handle 33. In the embodiment, as shown in Figure 4 、 Figure 6 and Figure 10 As shown, the sliding connection of the sliding block 3 relative to the atomizing air cap 2 is realized by the sliding cooperation between the I-shaped block 32 and the I-shaped groove 221, and the sliding block 3 can be prevented from being pulled out of the sliding groove 22. The handle 33 is arranged to facilitate pushing or pulling the sliding block 3, and the operation is more labor-saving.

[0045] As another preferred scheme of the utility model, the nozzle 1 is further provided with a first air port 13 and a second air port 14 surrounding the outer peripheral side of the nozzle port 12, the first air port 13 is in communication with the through hole 21, and the side away from the nozzle 1 of the atomizing air cap 2 is symmetrically provided with a pair of side air outlet blocks 23, the end face of the side air outlet block 23 is provided with a side air outlet port 231 corresponding to the second air port 14, and when the atomizing air cap 2 is rotated, the second air port 14 and the side air outlet port 231 are in communication or disconnected. The side close to the nozzle 1 of the atomizing air cap 2 is provided with a side air outlet channel 232 in communication with the side air outlet port 231, and the end of the side air outlet channel 232 is in abutting cooperation with the end face of the nozzle 1. The end face of the side close to the atomizing air cap 2 of the nozzle 1 is provided with a limiting groove 15 for limiting the side air outlet channel 232, and when the side air outlet channel 232 is in abutting cooperation with the limiting groove 15, the second air port 14 and the side air outlet port 231 are in communication. The side close to the nozzle 1 of the atomizing air cap 2 is provided with an annular air plate 24, and the annular air plate 24 isolates the first air port 13 and the second air port 14. In the embodiment, as shown in Figures 8 to 11As shown, in working, the atomizing air cap 2 is driven to rotate by rotating the side air outlet block 23, in the process, when the side air outlet 231 is communicated with the corresponding second air outlet 14, the air pressure in the spray gun body flows to the nozzle opening 12 through the first air outlet 13 and the through hole 21, and another part of the air pressure flows to the nozzle opening 12 through the corresponding second air outlet 14 and the side air outlet 231, so as to realize the flat atomizing spraying of the liquid material; when the side air outlet 231 is disconnected from the corresponding second air outlet 14, the air pressure in the spray gun body flows to the nozzle opening 12 through the first air outlet 13 and the through hole 21, so as to realize the circular atomizing spraying of the liquid material. In the embodiment, the limiting groove 15 is arranged to facilitate the adjustment of the atomizing air cap 2.

[0046] In a further embodiment, by replacing the nozzle 1 provided with the nozzle opening 12 with different diameters, the adjustment of the coating spraying flow can be further realized, and correspondingly, the slider 3 matched with the nozzle 1 needs to be replaced.

[0047] As another preferred scheme of the utility model, the outer circumference of the nozzle 1 is provided with a plurality of positioning rotation stop protrusions 16, and the spray gun body is provided with a plurality of spray gun body clamping grooves corresponding to the positioning rotation stop protrusions 16 one by one. Figure 8 and Figure 9 As shown, when the nozzle 1 is installed to the spray gun body, the quick positioning is realized by the cooperation of the positioning rotation stop protrusions 16 and the spray gun body clamping grooves, and the rotation stop cooperation of the nozzle 1 and the spray gun body is realized.

[0048] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the embodiments. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A nozzle assembly capable of adjusting flow, comprising a nozzle (1) and an atomizing cap (2) covering the outside of the nozzle (1), wherein a gap for gas outflow is provided between the atomizing cap (2) and the nozzle (1), an internal part of the nozzle (1) is provided with a liquid channel (11), and a center of the nozzle (1) is provided with a nozzle port (12) communicating with the liquid channel (11); a center of the atomizing cap (2) is provided with a through hole (21) matched with the nozzle port (12), characterized in that: The end surface of the atomizing hood (2) is provided with a sliding groove (22) arranged along the diameter direction of the through hole (21), and the sliding groove (22) is slidably provided with a sliding block (3), the sliding block (3) is provided with a plurality of discharge ports (31) matched with the nozzle port (12) along the length direction of the sliding block (3), the diameters of all the discharge ports (31) are different, and the diameters of all the discharge ports (31) are not greater than the diameter of the nozzle port (12), the nozzle port (12) and the discharge ports (31) of different diameters are correspondingly communicated by sliding the sliding block (3), so as to adjust the discharge flow of the nozzle assembly. ​ 2. A flow adjustable nozzle assembly according to claim 1, wherein: The side of the sliding block (3) close to the nozzle (1) is provided with an annular groove (311) surrounding the outside of the discharge port (31), and the nozzle port (12) is provided with an annular protrusion (121) matched with the annular groove (311).

3. A flow adjustable nozzle assembly according to claim 1, wherein: Both sides of the sliding block (3) are provided with an I-shaped block (32), and the groove bottom of the sliding groove (22) of the atomizing hood (2) is provided with an I-shaped groove (221) matched with the I-shaped block (32).

4. A flow adjustable nozzle assembly according to any one of claims 1 to 3, wherein: The end of the sliding block (3) is provided with a handle (33).

5. The flow-adjustable nozzle assembly of claim 1, wherein: The liquid channel (11) extends in a flared manner from one end close to the nozzle port (12) to an end away from the nozzle port (12).

6. The flow-adjustable nozzle assembly of claim 1, wherein: The nozzle (1) is also provided with a first air port (13) and a second air port (14) surrounding the outer peripheral side of the nozzle port (12), the first air port (13) is communicated with the through hole (21), and the side of the atomizing hood (2) away from the nozzle (1) is symmetrically provided with a pair of side air outlet blocks (23), the end surface of the side air outlet block (23) is provided with a side air outlet (231) matched with the second air port (14), and when the atomizing hood (2) is rotated, the corresponding second air port (14) and side air outlet (231) are communicated or disconnected.

7. A flow adjustable nozzle assembly according to claim 6, wherein: The side of the atomizing hood (2) close to the nozzle (1) is provided with a side air outlet channel (232) communicated with the side air outlet (231), and the end of the side air outlet channel (232) is abuttingly matched with the end surface of the nozzle (1).

8. A flow adjustable nozzle assembly according to claim 7, wherein: The end surface of the nozzle (1) on the side close to the atomizing hood (2) is provided with a limiting groove (15) for limiting the side air outlet channel (232), and when the side air outlet channel (232) is stopped and matched with the limiting groove (15), the corresponding second air port (14) and side air outlet (231) are communicated.

9. A flow adjustable nozzle assembly according to claim 6, wherein: The side of the atomizing hood (2) close to the nozzle (1) is provided with an annular air baffle (24), and the annular air baffle (24) isolates the first air port (13) and the second air port (14).

10. The flow-adjustable nozzle assembly of claim 1, wherein: The outer periphery of the nozzle (1) is provided with a plurality of positioning rotation stopping protrusions (16).

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