A powder sprayer

Abstract

The utility model discloses a powder sprayer, it is including: bottle body is equipped with powder, the opening of bottle body is connected to the body, and the piston cavity is formed in the body recess, and the piston piece is connected in the piston cavity, and the nozzle piece is connected to the piston piece, and the upper end of push rod is connected to the piston piece, and the spout of communication in the nozzle piece, and the lower end of push rod passes through the body and extends in the bottle body, and the elastic piece is set in the push rod, and is abutted to the body, and the body is equipped with air inlet, and the air inlet is communicated in the piston cavity, and the connector is connected to the body, and is communicated in the piston cavity and push rod. The utility model discloses through the integral design of the nozzle piece, the piston piece, the bottle body, the body, the push rod, the elastic piece and the connector and other components, it is convenient for carrying and storage, and does not need to assemble or disassemble to multiple components in the use process, has improved the convenience of use, in addition, the user only needs to press the nozzle piece this simple action, can trigger the ejection of powder, has simplified the use operation.

Description

Technical Field

[0001] This utility model relates to the field of sprayer technology, and in particular to a powder sprayer. Background Technology

[0002] Currently, the technology for sprayers used for liquid products is relatively mature and comes in a wide variety. Liquid sprayers, through specific nozzle structures and pressure devices, can uniformly spray liquids in a mist form, making them convenient to use and allowing for effective control of the amount used, greatly improving the user experience and effectiveness of liquid products.

[0003] However, existing methods of using dry powder products present many inconveniences. Currently, the common packaging and usage methods for dry powder products are mainly as follows:

[0004] Using canned or boxed products with a spoon or powder applicator: This is a more traditional method. The dry powder product is stored in a jar or box, and a spoon is used to scoop out the powder before applying it to the desired area of ​​the body; alternatively, a powder applicator is used to dip into the jar to collect the powder before application. This method is cumbersome, requires additional tools, and the spoon or powder applicator is prone to attracting dust and bacteria, contaminating the product. Furthermore, it's difficult to control the amount of powder used, leading to waste.

[0005] The can has multiple small holes for use with the powder applicator: Some dry powder products have multiple small holes at the can opening. To use, the can is tilted, allowing the powder to flow from these holes onto the powder applicator. However, in practice, it's difficult to precisely control the flow rate and volume of the powder. Improper tilting angles or force can easily cause a large amount of powder to gush out simultaneously, resulting in spillage. Spilled powder not only pollutes the surrounding environment, such as clothing and furniture, but also wastes the product and increases usage costs.

[0006] Furthermore, these existing methods of application share a common drawback: the difficulty in achieving uniform application of the dry powder. Due to the poor flowability of the dry powder, it is prone to clumping or uneven distribution during use, affecting the product's effectiveness and preventing it from fully realizing its intended benefits.

[0007] In summary, existing methods of using dry powder products suffer from inconvenience and are prone to spillage and waste. There is an urgent need for a new type of device for using dry powder products to improve these conditions and enhance the convenience and effectiveness of these products. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a powder sprayer.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] This utility model provides a powder sprayer, including: a nozzle, a piston, a bottle, a body, a hollow push rod, an elastic element, and a connector. The bottle contains powder. The body is connected to the opening of the bottle and has a concave piston cavity. The piston is slidably connected to the piston cavity. The nozzle is connected to the piston. The upper end of the push rod is connected to the piston and communicates with the nozzle nozzle's nozzle outlet. The lower end of the push rod passes through the body and extends into the bottle. The elastic element is sleeved on the push rod and abuts against the body. The body also has an air inlet, which communicates with the piston cavity. The connector is connected to the body and communicates with the piston cavity and the push rod. Pressing the nozzle causes the piston to move downward. The airflow entering through the air inlet is compressed and enters the powder-containing area of ​​the bottle along the connector. The powder is sprayed out through the nozzle along the push rod and the nozzle under the action of the airflow.

[0011] In one specific embodiment, the connector includes a first pipe and a second pipe, and the body is provided with an air guide pipe and a connecting pipe corresponding to the first pipe and the second pipe respectively. The lower end of the first pipe is provided with an air outlet, and the lower end of the second pipe is provided with an opening, and the air outlet is connected to the opening.

[0012] In one specific embodiment, a one-way valve is also provided in the first pipeline.

[0013] In one specific embodiment, the second pipe is slidably connected to a sleeve at the upper end of the opening, and the sleeve is throttle connected to the push rod.

[0014] In one specific embodiment, the connector is further provided with a support plate at its bottom.

[0015] In one specific embodiment, the body is further provided with a limiting member at the upper end of the piston member.

[0016] In one specific embodiment, the inner wall of the limiting member is provided with a sliding groove, and the nozzle member is provided with a slider corresponding to the sliding groove.

[0017] In one specific embodiment, the upper end of the push rod is provided with an annular protrusion, the inner wall of the connecting tube is provided with a limiting protrusion, the upper end of the elastic element abuts against the annular protrusion, and the lower end abuts against the limiting protrusion.

[0018] In one specific embodiment, the nozzle is connected to a rotating arm assembly, which consists of a rotating arm block, a rotating arm rod, and a nozzle component connected in sequence. The rotating arm block is connected to the nozzle, the rotating arm rod is connected to the rotating arm block, and the nozzle component is connected to the rotating arm rod.

[0019] In one specific embodiment, a bottom cap is also connected to the lower end of the bottle body.

[0020] The advantages of this powder sprayer compared to existing technologies are as follows: By integrating the nozzle, piston, bottle, main body, push rod, elastic element, and connector into a single, compact, and complete device, this integrated design not only facilitates carrying and storage but also eliminates the need for assembling or disassembling multiple components during use, thus improving ease of use. Furthermore, users only need to press the nozzle to trigger powder dispensing, a far cry from traditional methods of using a spoon or powder applicator to pick up dry powder or pouring it through the can's opening. This eliminates the need for additional tools and cumbersome procedures, greatly simplifying operation and making it easy for users of all ages and in various usage scenarios to use, resulting in high practicality. Additionally, the airflow, upon entering the powder-containing area of ​​the bottle, evenly disperses the powder, allowing it to be smoothly sprayed along the push rod and nozzle under the influence of the airflow. During spraying, the airflow stirs and propels the powder, ensuring even distribution at the nozzle and uniform application to the target area.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional schematic diagram of the powder sprayer provided by this utility model;

[0024] Figure 2 A cross-sectional schematic diagram of the powder sprayer provided by this utility model;

[0025] Figure 3 An exploded view of the powder sprayer provided by this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0033] See Figures 1 to 3 The specific embodiment shown in this utility model discloses a powder sprayer, including: a nozzle 10, a piston 20, a bottle 30, a body 40, a hollow push rod 50, an elastic element 60, and a connector 70. The bottle 30 is filled with powder. The body 40 is connected to the opening 721 of the bottle 30, and the body 40 has a concave piston cavity. The piston 20 is slidably connected to the piston cavity. The nozzle 10 is connected to the piston 20. The upper end of the push rod 50 is connected to the piston 20 and communicates with the nozzle 11 of the nozzle 10. The lower end of the push rod 50 passes through the... The body 40 extends into the bottle 30, the elastic element 60 is sleeved on the push rod 50 and abuts against the body 40, the body 40 is also provided with an air inlet 41, and the air inlet 41 is connected to the piston chamber, the connector 70 is connected to the body 40 and is connected to the piston chamber and the push rod 50; pressing the nozzle 10 causes the piston 20 to move down, the airflow entering through the air inlet 41 is compressed and enters the area of ​​the bottle 30 containing powder along the connector 70, the powder is sprayed out through the nozzle 11 along the push rod 50 and the nozzle 10 under the action of the airflow.

[0034] Specifically, the body 40 is securely connected to the bottle 30 via threaded connection, snap-fit ​​connection, or other suitable connection method. This connection method must ensure good sealing to prevent powder leakage and the entry of external impurities. The piston 20 is slidably installed into the piston cavity formed by the recess in the body 40. An appropriate fit clearance should be maintained between the piston 20 and the piston cavity to ensure smooth sliding of the piston 20 while preventing airflow leakage. The nozzle 10 is connected to the piston 20, which can be done by threaded connection or plug-in connection, ensuring a tight connection so that the nozzle 10 and piston 20 form a whole and can move synchronously. The upper end of the push rod 50 is connected to the piston 20, ensuring that the push rod 50 is connected to the nozzle 11 of the nozzle 10 so that the powder can smoothly pass through the push rod 50 to the nozzle 11 and be sprayed out. The lower end of the push rod 50 passes through the body 40 and extends into the bottle 30. The elastic element 60 is fitted onto the push rod 50, with one end of the elastic element 60 abutting against the body 40. The selection of the elastic element 60 should be based on actual requirements to determine its elasticity and specifications, ensuring it provides appropriate restoring force during use. Connect the connector 70 to the body 40, ensuring that the connector 70 is connected to the piston chamber and the push rod 50. The connector 70 must be securely and reliably installed to prevent loosening or air leakage during use.

[0035] When the nozzle 10 is not pressed, the elastic element 60 is in a naturally extended state, the piston 20 is located at the higher position of the piston chamber, the air inlet 41 is open to the outside atmosphere, and the powder in the bottle 30 is in a static state. When the user needs to use the powder sprayer, he presses the nozzle 10 by hand. Since the nozzle 10 is connected to the piston 20, pressing the nozzle 10 will cause the piston 20 to move downward along the piston chamber. During the downward movement of the piston 20, the volume of the piston chamber decreases, which compresses the airflow entering the piston chamber from the air inlet 41. The compressed airflow enters the area of ​​the bottle 30 containing powder along the connector 70. The airflow entering the bottle 30 creates a certain pressure inside the bottle 30, which lifts the powder and drives it upward along the hollow push rod 50. The powder reaches the nozzle 10 through the push rod 50 and is finally sprayed out from the nozzle 11. When the user releases the nozzle 10, under the elastic restoring force of the elastic element 60, the piston 20 moves upward along the piston chamber and returns to its initial position. At this time, the volume of the piston chamber increases, and outside air re-enters the piston chamber through the air inlet 41, preparing for the next press.

[0036] In other words, by integrating components such as the nozzle 10, piston 20, bottle 30, main body 40, push rod 50, elastic element 60, and connector 70 into one compact and complete device, this integrated design not only facilitates carrying and storage but also eliminates the need for assembling or disassembling multiple components during use, thus improving ease of use. Furthermore, users only need to press the nozzle 10 to trigger powder dispensing. Compared to traditional methods of using a spoon or powder applicator to pick up dry powder and pouring it through the small holes in the can, this eliminates the need for additional tools and cumbersome procedures, greatly simplifying operation and making it easy for users of all ages and in various usage scenarios to use, demonstrating its high practicality. Additionally, after the airflow enters the powder-containing area of ​​the bottle 30, it evenly disperses the powder, allowing it to be smoothly sprayed out along the push rod 50 and nozzle 10 under the action of the airflow. During the spraying process, the airflow stirs and propels the powder, ensuring its even distribution at the nozzle 11 and thus evenly spraying it onto the target area. Furthermore, through the coordinated operation of components such as piston 20, push rod 50, elastic element 60, and connector 70, when the nozzle 10 is pressed, piston 20 moves downward. The airflow entering through air inlet 41 is compressed and then enters the powder-containing area of ​​bottle 30 along connector 70. This causes the powder to be ejected through nozzle 11 along push rod 50 and nozzle 10 under the action of the airflow. This design allows for precise control of the powder output and direction, avoiding the spillage caused by excessive powder discharge due to improper operation in traditional methods. Users can adjust the powder output by controlling the pressure and duration of pressing nozzle 10, achieving precise use and significantly reducing powder waste. Additionally, users can adjust the spray range by changing the method and pressure of pressing nozzle 10, thereby altering the airflow intensity and powder ejection speed. For example, when large-area spraying is required, the pressing force can be increased to spray more powder under stronger airflow, expanding the spray range; while when localized fine spraying is needed, the pressing force can be reduced to precisely control the amount and range of powder sprayed. This adjustability allows the powder sprayer to adapt to different usage scenarios and needs, further improving the product's practicality and applicability. Furthermore, due to the closed structural design of the powder sprayer, the powder inside the bottle 30 is relatively isolated from the external environment, effectively preventing external dust, bacteria, and other contaminants from entering the bottle 30 and contaminating the powder.

[0037] In one embodiment, the connector 70 includes a first pipe 71 and a second pipe 72. The body 40 is provided with an air guide pipe 42 and a connecting pipe 43 corresponding to the first pipe 71 and the second pipe 72, respectively. The lower end of the first pipe 71 is provided with an air outlet 711, and the lower end of the second pipe 72 is provided with an opening 721. The air outlet 711 is connected to the opening 721.

[0038] Specifically, the air guide tube 42 connects the piston chamber to the first pipe 71, the connecting tube 43 connects to the second pipe 72, and the push rod 50 extends through the connecting tube 43 into the second pipe 72. The opening 721 allows powder to enter, and the outlet 711 allows airflow to lift the powder and propel it upwards along the hollow push rod 50. More specifically, the first pipe 71 of the connector 70 is inserted into the air guide tube 42 of the body 40, ensuring a tight, gapless connection. An interference fit can be used, where appropriate tolerances are designed at the connection between the first pipe 71 and the air guide tube 42 to securely fix the first pipe 71 within the air guide tube 42. Simultaneously, the second pipe 72 of the connector 70 is connected to the connecting tube 43 of the body 40, ensuring a tight seal at the connection point. For example, sealant or sealing rings can be used for sealing. The push rod 50 is then passed through the connecting tube 43 of the body 40 and inserted into the second pipe 72 of the connector 70. When the user presses the nozzle 10, the piston 20 moves downward, reducing the volume of the piston chamber. Outside air enters the piston chamber through the air inlet 41 of the body 40. The airflow entering the piston chamber is compressed by the piston 20 and then enters the first pipe 71 of the connector 70 through the air guide tube 42. The compressed airflow is ejected from the outlet 711 at the lower end of the first pipe 71 and enters the opening 721 at the lower end of the second pipe 72. At this time, the powder inside the bottle 30 is lifted by the airflow and moves upward along the second pipe 72. Since the push rod 50 extends into the second pipe 72 through the connecting tube 43 and is hollow, the powder and airflow enter the push rod 50 and continue to move upward along it, eventually reaching the nozzle 11 of the nozzle 10 and being ejected.

[0039] In other words, the design of the air outlet 711 at the lower end of the first pipe 71 and the opening 721 at the lower end of the second pipe 72 allows the airflow to directly act on the powder inside the bottle 30. The airflow is ejected at high speed from the air outlet 711, forming a local low-pressure area at the opening 721, thereby effectively lifting the powder. Compared with traditional powder lifting methods, this design can mix the powder and airflow more quickly and efficiently, improving the powder lifting efficiency. In addition, the airflow fully contacts and mixes with the powder inside the second pipe 72. Due to the relatively enclosed space of the second pipe 72, the airflow can form a stable flow inside the pipe, allowing the powder to be evenly distributed in the airflow. This helps to ensure that the powder can evenly cover the target area when ejected, improving the powder's effectiveness. Furthermore, the push rod 50 extends into the second pipe 72 through the connecting pipe 43, providing a stable channel for the transport of powder and airflow. After the powder and airflow are agitated within the second pipe 72, they can move directionally upwards along the inside of the push rod 50, preventing the powder from scattering and leaking during the conveying process. This directional conveying method ensures that the powder accurately reaches the nozzle 11 for ejection, improving the stability of powder conveying. In addition, the design of the opening 721 in the second pipe 72 ensures that the powder can smoothly enter the pipe.

[0040] In one embodiment, a one-way valve 80 is also provided in the first pipe 71.

[0041] Specifically, see Figure 2 As shown, downward-pointing arrows indicate the airflow direction, and upward-pointing arrows indicate the powder movement direction. The one-way valve 80 is an elastic body, easily deformed elastically under impact to form an air intake. The air intake of the one-way valve 80 is connected to the air guide pipe 42, and the air outlet of the one-way valve 80 is connected to the air outlet 711. More specifically, the one-way valve 80 is made of an elastic material with good elasticity and flexibility, such as silicone or rubber. These materials can undergo elastic deformation under external force and quickly return to their original shape after the external force is removed, meeting the working requirements of the one-way valve 80. When the user presses the nozzle 10, the piston 20 moves downward, compressing the airflow in the piston chamber and increasing the pressure. The compressed airflow enters the first pipe 71 through the air guide pipe 42 and impacts the air intake of the one-way valve 80. Because the one-way valve 80 is an elastic body, under the impact of the airflow, the air inlet of the one-way valve 80 undergoes elastic deformation, opening the air inlet channel and allowing the airflow to pass smoothly through the one-way valve 80 and be ejected from the air outlet 711 into the second pipe 72. When the user releases the nozzle 10, the piston 20 moves upward under the action of the elastic element 60, reducing the pressure in the piston chamber. At this time, the airflow impact force on the one-way valve 80 disappears, its elastic deformation recovers, the air inlet closes, preventing outside air from flowing back into the piston chamber, ensuring a stable airflow pressure for the next press.

[0042] In other words, the one-way valve 80, acting as an elastic body, buffers and regulates the airflow pressure as it passes through. When the airflow pressure increases instantaneously, the one-way valve 80 undergoes elastic deformation, absorbing some energy and preventing a sharp rise in airflow pressure. When the airflow pressure decreases, the one-way valve 80 gradually returns to its original shape, maintaining a relatively stable airflow pressure. This buffering and regulating effect effectively prevents uneven powder spraying caused by excessive airflow pressure fluctuations. Furthermore, during the operation of the powder sprayer, airflow pressure pulses may be generated due to the movement of the piston 20 and the impact of the airflow. The one-way valve 80 eliminates these pulses, ensuring that the airflow pressure remains within a stable range. Stable airflow pressure provides reliable power for powder lifting and conveying, ensuring consistent force exerted by the airflow on the powder during each spray. Additionally, because the one-way valve 80 ensures stable airflow pressure each time, according to Bernoulli's principle, the airflow rate through the outlet 711 will also be relatively stable under stable airflow pressure. A stable airflow rate allows for precise control of the airflow entering the second pipe 72 and agitating the powder, ensuring a consistent powder dosage with each spray. Furthermore, the check valve 80 effectively prevents outside air from flowing back into the piston chamber during the piston's ascent. Backflow of outside air into the piston chamber would cause pressure instability, affecting airflow formation and powder spraying performance with each subsequent press. Simultaneously, dust, bacteria, and other contaminants from the outside air could enter the piston chamber with the backflowing air, contaminating the powder aerosol sprayer and reducing its lifespan and hygiene.

[0043] In one embodiment, the second pipe 72 is slidably connected to a sleeve 90 at the upper end of the opening 721, and the sleeve 90 is throttle connected to the push rod 50.

[0044] Specifically, when the nozzle 10 is not pressed, the sleeve 90 is located at a relatively high position within the second pipe 72, with a certain gap between it and the opening 721. At this time, the opening 721 is fully open, allowing the powder in the bottle 30 to freely enter the second pipe 72. When the user presses the nozzle 10, the push rod 50 moves downward. Since the push rod 50 is connected to the sleeve 90, the movement of the push rod 50 will drive the sleeve 90 to move downward synchronously. The sleeve 90 gradually inserts into the area of ​​the opening 721. As the sleeve 90 continues to move downward, the effective passage area of ​​the opening 721 gradually decreases. When the sleeve 90 moves to a certain position, the sleeve 90 and the opening 721 are fully engaged, closing the opening 721 to a set size. At this time, only a specific amount of powder can enter the second pipe 72 through the gap between the opening 721 and the sleeve 90. This amount of powder is the precisely measured powder dosage. Subsequently, airflow is ejected from the outlet 711 of the first pipe 71, raising this measured amount of powder and spraying it along the push rod 50 and the nozzle 10. When the user releases the nozzle 10, the push rod 50 moves upward under the action of the elastic element 60, driving the sleeve 90 to move upward synchronously. The sleeve 90 gradually moves away from the opening 721 area, and the opening 721 reopens, preparing for the next press.

[0045] In other words, the amount of powder entering the second pipe 72 each time can be precisely controlled through the fit between the sleeve 90 and the opening 721. The fit dimensions between the sleeve 90 and the opening 721 can be precisely designed and manufactured according to actual needs, ensuring that only a specific amount of powder can pass through each time the nozzle 10 is pressed, thus achieving precise quantitative powder dosage. This is of great significance for some applications with strict requirements on powder dosage, such as pharmaceuticals and cosmetics production. In addition, precise quantitative powder dosage ensures that the amount of powder sprayed each time is uniform, resulting in more even powder coverage on the target area. Under the action of airflow, the quantitative powder can be evenly dispersed and sprayed, improving the powder spraying effect and the accuracy of the coverage area. Users can control the amount of powder sprayed each time by adjusting the fit dimensions between the sleeve 90 and the opening 721 or by adjusting the force and time of pressing the nozzle 10, according to actual needs. This controllable powder spraying method can meet the usage requirements of different scenarios and products, improving the applicability and flexibility of the powder atomizer.

[0046] In one embodiment, the connector 70 is further provided with a support plate 100 at its bottom.

[0047] Specifically, the support plate 100 supports the connector 70 and seals with the connector 70 and the sleeve 90 to achieve precise powder dosage. More specifically, when the nozzle 10 is not pressed, the sleeve 90 is positioned a certain distance above the support plate 100, and the opening 721 is open, allowing powder in the bottle 30 to freely enter the second pipe 72 through the opening 721. When the user presses the nozzle 10, the push rod 50 moves the sleeve 90 downward, gradually inserting it into the area of ​​the opening 721. As the sleeve 90 continues to move downward, the effective passage area of ​​the opening 721 gradually decreases until the sleeve 90 abuts against the support plate 100. At this point, the sleeve 90, the support plate 100, and the connector 70 together form a closed metering chamber, where only a specific amount of powder is sealed, achieving precise powder dosage. Subsequently, airflow is ejected from the outlet 711 of the first pipe 71, lifting this metered amount of powder and ejecting it along the push rod 50 and the nozzle 10.

[0048] In other words, the support plate 100 cooperates with the connector 70 and the sleeve 90 to form a closed metering chamber when the sleeve 90 moves downward to a specific position. The volume of this chamber is fixed. By precisely designing and manufacturing the dimensions of the support plate 100, connector 70, and sleeve 90, it can be ensured that the amount of powder contained in the metering chamber formed each time is precisely consistent, thereby achieving precise metering of powder dosage.

[0049] In one embodiment, the body 40 is further provided with a limiting member 110 at the upper end of the piston member 20.

[0050] Specifically, the limiting member 110 limits the piston member 20, preventing it from dislodging from the piston chamber. More specifically, when the user presses the nozzle member 10, the piston member 20 moves downward under the action of the nozzle member 10, compressing the airflow in the piston chamber and spraying out the powder. At this time, the limiting member 110 does not affect the normal movement of the piston member 20, which can move freely up and down within the piston chamber. When the user releases the nozzle member 10, and the piston member 20 moves upward under the action of the elastic member 60, the limiting member 110 prevents the piston member 20 from continuing to move upward, preventing it from dislodging from the piston chamber.

[0051] In other words, the limiting component 110 effectively prevents the piston component 20 from disengaging from the piston chamber during its upward movement, avoiding product malfunctions caused by the piston component 20 disengaging. If the piston component 20 disengages from the piston chamber, it may prevent the airflow from forming properly, causing the powder to fail to spray out, and may even damage other components of the powder atomizer, affecting the normal use of the product. By limiting the piston component 20 with the limiting component 110, the integrity of the internal structure of the powder atomizer is maintained, allowing components such as the piston component 20, piston chamber, and push rod 50 to work together as designed, ensuring stable and reliable operation of the product.

[0052] In one embodiment, the inner wall of the limiting member 110 is provided with a groove 111, and the nozzle member 10 is provided with a slider 12 corresponding to the groove 111.

[0053] Specifically, the nozzle 10 is in its initial position, and the slider 12 is located at the upper end of the groove 111. At this time, the nozzle 10 is not pressed, and the piston 20 is also in its initial position, with the powder sprayer in a standby state. When the user presses the nozzle 10, the nozzle 10 begins to move downwards, and the slider 12 slides downwards along the groove 111. The groove 111 guides the movement of the slider 12, ensuring that the nozzle 10 can only move vertically up and down without any horizontal deviation or wobbling. As the nozzle 10 moves downwards, it drives the piston 20 to move downwards, compressing the airflow in the piston chamber and spraying powder from the nozzle 10. During the powder spraying process, the slider 12 always slides within the groove 111, ensuring the stability of the nozzle 10's movement.

[0054] In other words, the cooperation between the slide groove 111 and the slider 12 provides precise guidance for the up and down movement of the nozzle 10, effectively preventing the nozzle 10 from deviating horizontally during movement. This allows the nozzle 10 to move accurately along the vertical direction, ensuring the consistency of the powder spraying direction and position, and improving the powder spraying accuracy.

[0055] In one embodiment, the upper end of the push rod 50 is provided with an annular protrusion 51, the inner wall of the connecting tube 43 is provided with a limiting protrusion, the upper end of the elastic element 60 abuts against the annular protrusion 51, and the lower end abuts against the limiting protrusion. Preferably, the elastic element 60 is a spring.

[0056] Specifically, when the nozzle 10 is not pressed, the spring is in its naturally extended state, the push rod 50 is in a relatively high position under the action of the spring, and the piston 20 is also in its initial position. At this time, the spring applies an upward elastic force to the push rod 50 and the piston 20, so that the piston 20 always tends to return to its original position. When the user presses the nozzle 10, the push rod 50 is subjected to downward pressure, overcoming the elastic force of the spring and moving downward, compressing the spring. As the push rod 50 moves downward, the piston 20 is also driven to move downward, compressing the airflow in the piston chamber and spraying out the powder. When the user releases the nozzle 10, the spring begins to extend under its own elastic force, pushing the push rod 50 upward. The push rod 50 drives the piston 20 upward to return to its initial position, preparing for the next press.

[0057] In other words, the elastic element 60 ensures that the piston element 20 always tends to return to its original position. After the user releases the nozzle element 10, the piston element 20 automatically returns to its initial position without requiring manual reset, thus improving ease of use. Furthermore, the automatic reset function allows the powder sprayer to quickly return to its ready-to-work state, facilitating continuous powder spraying and improving work efficiency. Additionally, the spring acts as a buffer and pressure regulator during the pressing and releasing process of the push rod 50. During pressing, the spring is compressed, storing elastic potential energy; during releasing, the spring releases elastic potential energy, providing stable power for the piston element 20 to reset. This buffering and regulating effect allows the powder sprayer to maintain a relatively stable working pressure during operation, thereby improving the uniformity and stability of powder spraying.

[0058] In one embodiment, the nozzle 11 is connected to a rotating arm assembly 120, which consists of a rotating arm block 121, a rotating arm rod 122, and a nozzle component 123 connected in sequence. The rotating arm block 121 is connected to the nozzle 11, the rotating arm rod 122 is connected to the rotating arm block 121, and the nozzle component 123 is connected to the rotating arm rod 122.

[0059] Specifically, install the rotating arm block 121 onto the nozzle 11 according to the designed connection interface on the nozzle 11 and the rotating arm block 121. If it is a threaded connection, align the external thread of the rotating arm block 121 with the internal thread of the nozzle 11, and then rotate the rotating arm block 121 to make it tightly connected to the nozzle 11; if it is a snap-fit ​​connection, align the snap on the rotating arm block 121 with the snap groove on the nozzle 11, and press the rotating arm block 121 firmly to make the snap engage in the snap groove. Connect one end of the rotating arm rod 122 to the corresponding connection part on the rotating arm block 121. Similarly, according to the connection method (such as threaded connection), screw the external thread of the rotating arm rod 122 into the internal thread of the rotating arm block 121 until the connection is secure. Install the nozzle component 123 onto the other end of the rotating arm rod 122, and assemble it according to the designed connection method (such as threaded connection) to ensure that the nozzle component 123 is tightly connected to the rotating arm rod 122 and there is no powder leakage.

[0060] When the powder atomizer is not in operation, the rotating arm assembly 120 is in its initial position, and the nozzle 123 points in a predetermined direction. At this time, the powder inside the powder atomizer is stationary, and there is no powder flow in the channel within the rotating arm assembly 120. When the user starts the powder atomizer, the powder is ejected from the nozzle 11, enters the internal flow channel of the rotating arm block 121, and then passes sequentially through the internal channel of the rotating arm rod 122 and the nozzle 123, finally exiting from the nozzle 123. The user can adjust the position and angle of the rotating arm rod 122 according to actual needs, changing the powder spraying direction and range of the nozzle 123. When the user stops the operation of the powder atomizer, the powder stops being ejected from the nozzle 11, the powder flow within the rotating arm assembly 120 gradually stops, and the nozzle 123 stops spraying powder.

[0061] In other words, the design of the rotating arm assembly 120 allows for flexible adjustment of the position and angle of the nozzle 123. Users can rotate the rotating arm rod 122 or adjust the overall posture of the rotating arm assembly 120 to point the nozzle 123 in different directions, thereby expanding the powder spraying range. For example, when powder coating large areas, the nozzle 123 can be easily moved to different positions to achieve omnidirectional powder coating. Furthermore, by adjusting the rotating arm assembly 120, users can precisely control the powder spraying direction of the nozzle 123, accurately spraying powder onto the target area. This is of great significance for applications with high requirements for powder coating positioning, such as surface treatment of electronic components and rust-proofing coating of precision instruments.

[0062] In one embodiment, the nozzle element 123 is connected to a dust cap 124.

[0063] Specifically, when the powder atomizer is not in use, the dust cap 124 effectively prevents dust, impurities, and other contaminants in the air from entering the internal channels of the nozzle component 123. The entry of dust and impurities may cause blockages in the channels, affecting the normal spraying of powder and even damaging the precision structure inside the nozzle component 123. The presence of the dust cap 124 keeps the internal channels of the nozzle clean, ensuring smooth powder spraying operations.

[0064] In one embodiment, the air inlet 41 is an air inlet groove provided on both sides of the inner wall of the main body 40.

[0065] Specifically, because the air inlet slots are located on both sides of the inner wall of the body 40, gas can enter the body 40 simultaneously from both sides, resulting in a more uniform airflow distribution within the body 40. This is crucial for products requiring uniform airflow distribution (such as powder atomizers, where uniform airflow ensures thorough mixing of powder and gas, leading to more even powder spraying), improving product performance and working efficiency. Furthermore, compared to a single air inlet, the dual air inlets reduce dead air zones within the body 40. Dead air zones can obstruct gas flow, affecting normal product operation; uniform airflow avoids this, improving gas utilization.

[0066] In one embodiment, a bottom cap 130 is also connected to the lower end of the bottle body 30.

[0067] Specifically, a suitable connection structure, such as a threaded structure, a slotted structure, or a plug-in structure, is typically provided at the lower end of the bottle body 30. If a threaded structure is used, external threads are machined on the outer wall of the lower end of the bottle body 30, and the thread specifications are determined according to the dimensions of the bottle body 30 and the connection strength requirements. The bottom cap 130 needs to be designed with a part that matches the connection structure at the lower end of the bottle body 30. If the bottle body 30 has a threaded connection, corresponding internal threads are machined inside the bottom cap 130 to ensure a tight connection between the two.

[0068] In other words, the bottom cap 130 can cushion and protect the lower end of the bottle 30 during placement or handling. When the bottle 30 is subjected to collision, compression, or friction, the bottom cap 130 can absorb some energy, reducing the impact on the bottle 30 itself and preventing breakage or wear at the lower end, thus extending the lifespan of the bottle 30. In certain special environments, such as damp ground or the presence of corrosive substances, the bottom cap 130 can isolate the lower end of the bottle 30 from direct contact with the external environment, preventing chemical corrosion. Especially for metal bottles 30, chemical corrosion may cause rust and thinning, affecting its strength and sealing performance; the presence of the bottom cap 130 can effectively reduce this risk. Furthermore, the design of the bottom cap 130 can coordinate with the overall style of the bottle 30, making the product look more aesthetically pleasing and refined. By choosing appropriate colors, materials, and shapes, the bottom cap 130 can become a decorative element of the bottle 30, enhancing the overall visual appeal of the product. In addition, the bottom cap 130 provides a flat surface for the bottle 30, allowing it to be placed stably on a table or other flat surface without easily tipping over. This is very important for bottles 30 that need to be stored for extended periods, such as cosmetic bottles and medicine bottles.

[0069] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A powder sprayer characterized by, include: The device comprises a nozzle, a piston, a bottle, a body, a hollow push rod, an elastic element, and a connector. The bottle contains powder. The body is connected to the opening of the bottle and has a concave piston cavity. The piston is slidably connected to the piston cavity. The nozzle is connected to the piston. The upper end of the push rod is connected to the piston and communicates with the nozzle nozzle's nozzle opening. The lower end of the push rod passes through the body and extends into the bottle. The elastic element is sleeved on the push rod and abuts against the body. The body also has an air inlet that communicates with the piston cavity. The connector is connected to the body and communicates with the piston cavity and the push rod. Pressing the nozzle causes the piston to move downward. Airflow entering through the air inlet is compressed and enters the powder-containing area of ​​the bottle along the connector. The powder, under the action of the airflow, travels along the push rod and the nozzle and is ejected through the nozzle.

2. The powder sprayer of claim 1, wherein, The connector includes a first pipe and a second pipe. The body is provided with an air guide pipe and a connecting pipe corresponding to the first pipe and the second pipe, respectively. The lower end of the first pipe is provided with an air outlet, and the lower end of the second pipe is provided with an opening. The air outlet is connected to the opening.

3. The powder sprayer of claim 2, wherein, The first pipeline is also equipped with a one-way valve.

4. The powder sprayer of claim 2, wherein, The second pipe is slidably connected to a sleeve at the upper end of the opening, and the sleeve is kinetically connected to the push rod.

5. The powder sprayer according to claim 2, characterized in that, The connector is also equipped with a support plate at its bottom.

6. The powder sprayer according to claim 1, characterized in that, The main body is located at the upper end of the piston component and is also provided with a limiting component.

7. The powder sprayer according to claim 6, characterized in that, The inner wall of the limiting member is provided with a sliding groove, and the nozzle member is provided with a slider corresponding to the sliding groove.

8. The powder sprayer according to claim 2, characterized in that, The upper end of the push rod is provided with an annular protrusion, the inner wall of the connecting tube is provided with a limiting protrusion, the upper end of the elastic element abuts against the annular protrusion, and the lower end abuts against the limiting protrusion.

9. The powder sprayer according to claim 1, characterized in that, The nozzle is connected to a rotating arm assembly, which consists of a rotating arm block, a rotating arm rod, and a nozzle component connected in sequence. The rotating arm block is connected to the nozzle, the rotating arm rod is connected to the rotating arm block, and the nozzle component is connected to the rotating arm rod.

10. The powder sprayer according to claim 1, characterized in that, The lower end of the bottle is also connected to a bottom cap.

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