WO2021018142A1 - 一种干粉喷雾器 - Google Patents

一种干粉喷雾器 Download PDF

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Publication number
WO2021018142A1
WO2021018142A1 PCT/CN2020/105197 CN2020105197W WO2021018142A1 WO 2021018142 A1 WO2021018142 A1 WO 2021018142A1 CN 2020105197 W CN2020105197 W CN 2020105197W WO 2021018142 A1 WO2021018142 A1 WO 2021018142A1
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WO
WIPO (PCT)
Prior art keywords
bottle body
cavity
dry powder
hole
outer bottle
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PCT/CN2020/105197
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English (en)
French (fr)
Inventor
沈军
Original Assignee
赫蕾雪(上海)科技有限公司
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Publication of WO2021018142A1 publication Critical patent/WO2021018142A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump

Definitions

  • the embodiments of the present application relate to the field of spraying, especially a dry powder sprayer.
  • dry powder sprayers have been produced on the market, and the nozzles of the dry powder sprayers can perform powder spraying and air intake at the same time.
  • the existing dry powder sprayers are used, there are more dry powder residues in the bottle of the dry powder sprayer.
  • the utilization rate of the sprayer is low.
  • the embodiment of the present application provides a dry powder sprayer, which reduces the possibility of dry powder remaining in the inner cavity and increases the utilization rate of the dry powder sprayer.
  • a dry powder sprayer comprising: an inner bottle body provided with an inner cavity for storing dry powder, a powder spraying pipe is arranged on the inner bottle body, and one end of the powder spraying pipe is arranged on the inner bottle On the outside of the body, the other end of the powder spraying pipe is set in the inner cavity of the inner bottle body; the outer bottle body, one end of the inner bottle body is embedded in the outer bottle body; along the outer bottle body The position of the inner bottle body in the outer bottle body is adjustable; an adjustable cavity is formed between the inner bottle body and the outer bottle body, and the inner bottle body is provided with a communication with the inner cavity
  • the first conducting hole with the adjustable cavity, the outer bottle body is provided with a second conducting hole connecting the adjustable cavity with the outside; the inner bottle body is provided with the The first conducting device on the first conducting hole, the outer bottle body is provided with a second conducting device arranged on the second conducting hole; when the inner bottle body is approaching the outer bottle When the body moves in the direction of the body, the volume of the adjustable cavity is reduced, and the
  • the inner cavity of the inner bottle body and the adjustable cavity are separated through the arrangement of the inner bottle body and the outer bottle body, and the powder spraying action can be realized at the same time during the air intake process of the inner cavity, thereby reducing the residual powder
  • the possibility in the inner cavity increases the utilization rate of the dry powder sprayer.
  • a connecting pipe is provided in the inner bottle body, one end of the connecting pipe is connected to the powder spraying pipe, and the other end of the connecting pipe is close to the first through hole.
  • a plurality of powder inlet holes are opened at one end of the connecting pipe away from the powder spraying pipe, and the radius of the powder inlet holes is smaller than the inner diameter of the connecting pipe.
  • the arrangement of the powder inlet hole with a smaller radius reduces the possibility of the dry powder entering the powder inlet hole after agglomeration, and then reduces the possibility of the connecting pipe and the powder spraying pipe being blocked, and increases the powder spraying of the dry powder sprayer. Reliability.
  • the powder inlet hole is opened on the side wall of the connecting pipe.
  • a first mixing hole is provided on the powder spraying pipe, and the first mixing hole is used to communicate the mixing pipe and the inner cavity; and/or; a second mixing hole is provided on the connecting pipe, The second mixing hole is used to connect the connecting pipe and the inner cavity.
  • the airflow in the inner cavity can pass through the first mixing hole and the second mixing hole to re-atomize the powder mist in the connecting pipe or the powder spraying pipe. , Increase the reliability of dry powder sprayer spray.
  • the second conduction device includes: a connecting block arranged on the inner wall of the outer bottle body; an elastic block for covering the second conduction hole; one end of the elastic block is arranged at For the connecting block, the other end of the elastic block is used to abut against the inner wall of the outer bottle; when the inner bottle moves away from the outer bottle, the elastic block moves away from the A gap is provided between one end of the connecting block and the inner wall of the outer bottle body.
  • a communication cavity is provided between the elastic block and the inner wall of the outer bottle body, and the communication cavity is The second via hole communicates with each other.
  • the pressure of the air flow on the elastic block is increased by the arrangement of the communicating cavity, which then facilitates the air flow to push up the elastic block and increases the reliability of the elastic block's lifting.
  • an elastic member is provided in the adjustable cavity, one end of the elastic member is arranged on the inner bottle body, and the other end of the elastic member is arranged on the outer bottle body or the second conducting device on.
  • the inner bottle body can be automatically jacked up by the elastic force of the elastic member, which is convenient for the user to operate.
  • one end of the elastic member close to the inner bottle body is sleeved on the outer side of the inner bottle body; and/or; a guide block is provided in the outer bottle body, and a guide groove is provided in the guide block, and the elastic One end of the member away from the inner bottle body is arranged on the inner wall of the guide groove.
  • the elastic member is sleeved on the inner bottle body, or the elastic member is arranged in the guide block, which increases the restraint of the elastic member, reduces the possibility of the elastic member shaking, and increases the stability of the elastic member .
  • the first conducting device is a one-way valve.
  • the selection of the pass-through check valve reduces the possibility of dry powder entering the first through hole and the adjustable cavity, thereby reducing the possibility of clogging of the first through hole and increasing the spray of the dry powder sprayer. The reliability of the powder.
  • the dry powder sprayer provided by this application has the following beneficial effects:
  • the inner cavity of the inner bottle body and the adjustable cavity are separated, and the powder spraying action can be realized at the same time during the air intake process of the inner cavity, which reduces the residual powder in the inner cavity.
  • the internal possibility increases the utilization rate of the dry powder sprayer.
  • the setting of the powder inlet hole with a smaller radius reduces the possibility of dry powder entering the powder inlet hole after agglomeration, thereby reducing the possibility of blockage of the connecting pipe and the powder spraying pipe, and increasing the reliability of powder spraying of the dry powder sprayer .
  • the air flow in the inner cavity can pass through the first mixing hole and the second mixing hole to re-atomize the powder mist in the connecting pipe or the powder spraying pipe, increasing The reliability of dry powder sprayer spraying.
  • Figure 1 is a schematic diagram of the structure of a dry powder sprayer of the present application
  • Figure 2 is a central sectional view of a dry powder sprayer according to the present application.
  • FIG. 3 is a schematic diagram of the lower structure of the connecting pipe in a dry powder sprayer of the present application
  • Fig. 4 is a middle sectional view of another dry powder sprayer of the present application.
  • a dry powder sprayer includes:
  • the inner bottle body 10 is provided with an inner cavity 11 for storing dry powder, and the user can place the dry powder to be sprayed (not shown in the figure) in the inner bottle body 10 according to needs;
  • the powder spraying pipe 13 is transmitted to the outside; in this embodiment, the powder spraying pipe 13 is horizontally arranged at the upper end of the inner bottle body 10.
  • the outer bottle body 20, the outer bottle body 20 can be arranged on the outside of the inner bottle body 10, and the inner bottle body 10 can be inserted into the outer bottle body 20 from the upper end of the outer bottle body 20. Therefore, the lower end of the inner bottle body 10 is located on the outer bottle body 20.
  • the position of the inner bottle body 10 in the outer bottle body 20 is adjustable, that is, the inner bottle body 10 can slide up and down on the upper end of the outer bottle body 20.
  • An adjustable cavity 21 is formed between the inner body 10 and the outer body 20, that is, the outer wall of the inner body 10 can abut the inner wall of the outer body 20, so the outer wall of the inner body 10 and the bottom of the outer body 20
  • the end can form a closed space, that is, the adjustable cavity 21 in this embodiment.
  • the adjustable cavity 21 is an area formed between the lower side of the inner bottle body 10 and the upper side of the outer bottle body 20.
  • the inner bottle body 10 is provided with a first through hole 12 for communicating the inner cavity 11 and the adjustable cavity 21, and the outer bottle body 20 is provided with a second through hole 22 for communicating the adjustable cavity 21 and the outside;
  • the first through hole 12 is provided at the center of the bottom of the inner bottle body 10, and there is only one first through hole 12, the second through hole 22 is provided at the bottom of the outer bottle body 20, and the second through hole 22 is provided at the bottom of the outer bottle body 20.
  • One or more through holes 22 are provided, and a plurality of second conductive through holes 22 can be circumferentially opened at the bottom of the outer bottle body 20 along the bottom of the outer bottle body 20.
  • the inner bottle body 10 is provided with a first conducting device 30 arranged on the first conducting hole 12, and the outer bottle body 20 is provided with a second conducting device 40 arranged on the second conducting hole 22, that is, when When the first conducting device 30 is connected, the inner cavity 11 of the inner bottle body 10 can communicate with the adjustable cavity 21.
  • the first conducting device 30 is closed, the inner cavity 11 of the inner bottle body 10 can communicate with the adjustable cavity 21.
  • the cavity 21 is separated; when the second conducting device 40 is turned on, the outside can communicate with the adjustable cavity 21, and when the second communicating device is closed, the outside can be separated from the adjustable cavity 21.
  • the volume of the adjustable cavity 21 is reduced, and the air pressure in the adjustable cavity 21 can be increased, which in turn leads to The first conducting device 30 is connected, and the gas in the adjustable cavity 21 can be transmitted to the inner cavity 11 through the first conducting device 30.
  • the volume of the adjustable cavity 21 increases, the air pressure in the adjustable cavity 21 decreases, and then the first The second conducting device 40, the outside gas can be transmitted to the adjustable cavity 21 through the second conducting device 40.
  • the gas in the adjustable cavity 21 can be transmitted to the inner cavity 11 through the first conducting device 30. Since the inner cavity 11 is connected to the outside, it is necessary to keep the inner cavity 11 still in At normal pressure, the air flow in the inner cavity 11 can be sprayed out along the powder spraying pipe 13; because the dry powder in the inner cavity 11 can be mixed with the newly introduced air to form a powder mist, the powder mist can follow the air flow The powder spraying pipe 13 is sprayed out to achieve the powder spraying effect.
  • the outside gas can be transmitted to the adjustable cavity 21 through the second conducting device 40, so that the gas can be filled into the adjustable cavity 21 again; when the user stops lifting the inner bottle At 10 o'clock, no outside air is injected into the adjustable cavity 21, and the adjustable cavity 21 is closed until the user presses the inner bottle 10 again; when the user continues to press and lift the inner bottle 10, the inner bottle 10 can continue to spray powder .
  • the inner cavity 11 of the inner bottle body 10 and the adjustable cavity 21 are separated, and the powder spraying action can be realized simultaneously during the air intake process of the inner cavity 11 This reduces the possibility of dry powder remaining in the inner cavity 11 and increases the utilization rate of the dry powder sprayer.
  • the first conduction device 30 is a one-way valve. Therefore, after the user presses down the inner bottle body 10, when the air pressure in the adjustable cavity 21 is greater than the conduction condition of the one-way valve , The one-way valve can be conducted, and the air flow in the adjustable cavity 21 can flow into the inner cavity 11; through the selection of the one-way valve, the entry of dry powder into the first conducting hole 12 and the adjustable cavity is reduced In turn, the possibility of blocking the first through hole 12 is reduced, and the reliability of powder spraying of the dry powder sprayer is increased.
  • FIGS. 2 to 4 a dry powder sprayer.
  • the difference between this embodiment and the first embodiment lies in the arrangement of the connecting pipe 14.
  • a connecting pipe 14 is provided in the inner bottle body 10, and the connecting pipe 14 can be arranged in the inner bottle body 10 in a vertical direction;
  • the pipe 13 is connected.
  • the upper end of the connecting pipe 14 can communicate with the inner end of the powder spraying pipe 13;
  • the other end of the connecting pipe 14 is close to the first conducting hole 12, that is, the other end of the connecting pipe 14 It can extend downwards until it is close to the first conducting hole 12;
  • the connecting pipe 14 can be detachably connected to the inner bottle body 10, specifically, the connecting pipe 14 can be plugged or threaded to the inner bottle body 10.
  • the connecting pipe 14 through the arrangement of the connecting pipe 14, it is convenient for the atomized dry powder to enter the connecting pipe 14 and then into the powder spraying pipe 13, which increases the spray reliability of the dry powder sprayer and reduces the amount of dry powder remaining in the inner cavity 11. Possibly, the utilization rate of the dry powder sprayer is increased.
  • the connecting pipe 14 is provided with a plurality of powder inlet holes 141 at one end away from the powder spraying pipe 13, that is, the powder inlet holes 141 are opened at the lower end of the connecting pipe 14, and the radius of the powder inlet 141 is smaller than the inner diameter of the connecting pipe 14, specifically In this embodiment, the radius of the powder inlet 141 is much smaller than the radius of the connecting pipe 14.
  • the powder inlet 141 is opened on the side wall of the connecting pipe 14, that is, the powder inlet 141 is horizontally opened on the connecting pipe 14.
  • the adjustable cavity is reduced
  • the airflow in 21 enters the inner cavity 11
  • the powder spraying pipe 13 is provided with a first mixing hole 131.
  • the first mixing hole 131 is used to connect the mixing pipe 15 and the inner cavity 11.
  • the first mixing hole 131 can be opened in the spraying pipe.
  • the lower side of the powder pipe 13; preferably, the lower side of the powder spray pipe 13 can also extend to form a mixing pipe 15 that can extend downward, and the length of the mixing pipe 15 is less than the length of the connecting pipe 14.
  • the connecting pipe 14 is provided with a second mixing hole 142 and a second conducting device 40.
  • the second mixing hole 142 and the second conducting device 40 are used to connect the connecting pipe 14 and the inner cavity 11.
  • the second The second conducting device 40 of the mixing hole 142 can be opened on the upper side of the powder inlet 141, and the second conducting device 40 of the second mixing hole 142 can be opened on the connecting pipe 14 in the horizontal direction, and the second mixing hole 142
  • the second conducting device 40 can be opened on the connecting pipe 14 around, and the second mixing hole 142 can be provided with one or more layers.
  • the second mixing hole 142 and the second conducting device 40 can be opened on the upper end of the connecting pipe 14 or Central.
  • the air flow in the inner cavity 11 can pass through the first mixing hole 131 and the second mixing hole 142.
  • 40 re-atomizes the powder mist in the connecting pipe 14 or the powder spraying pipe 13, which increases the reliability of the dry powder sprayer.
  • the dry powder can also enter the powder spray duct 13 through the first mixing hole 131 and/or the second mixing hole 141.
  • the airflow enters the inner cavity Then, it can enter the connecting pipe 14 again, and then enter the powder spraying pipe 13 to atomize the dry powder. Therefore, through the arrangement of the second conducting device 40 of the first mixing hole 131 and the second mixing hole 142, the dry powder sprayer of this embodiment It can also be used upside down.
  • the lower end of the connecting pipe 14 can be closed, that is, the powder mist can only enter the connecting pipe 14 from the position of the powder inlet 141 on the side, and cannot enter the connecting pipe 14 from the remaining positions. Therefore, the possibility that the dry powder enters the powder inlet 141 after agglomeration is reduced, and the possibility that the connecting pipe 14 and the powder spraying pipe 13 are blocked is then reduced, and the reliability of powder spraying of the dry powder sprayer is increased.
  • a dry powder sprayer As shown in FIG. 2, a dry powder sprayer.
  • the difference between this embodiment and the first embodiment lies in the specific structure of the second conducting device 40.
  • the second conducting device 40 includes:
  • the connecting block 41 is arranged on the inner wall of the bottom of the outer bottle body 20, and the connecting block 41 can be fixed on the outer bottle body 20 in any manner.
  • the elastic block 42 can be used to cover the second conducting hole 22; one end of the elastic block 42 is disposed on the connecting block 41, and the other end of the elastic block 42 is used to abut against the inner wall of the outer bottle body 20.
  • a communication cavity is provided between the elastic block 42 and the inner wall of the outer bottle body 20, and the communication cavity is connected to the second conducting hole 22. Connected.
  • the pressure of the air flow on the elastic block 42 is increased, which in turn facilitates the air flow to push up the elastic block 42 and increase the reliability of the elastic block 42 tilting.
  • the second conducting holes 22 are symmetrically distributed along the axis of the outer bottle body 20 at the bottom of the outer bottle body 20. Therefore, the cross section of the connecting block 41 is circular, and the axis of the connecting block 41 is aligned with the outer bottle The axis of the body 20 coincides, and the connecting block 41 is located between the plurality of second conducting holes 22, that is, the radius of the connecting block 41 is smaller than the distance between the axis of the second conducting hole 22 and the axis of the outer bottle body 20.
  • the elastic block 42 is annular, the inner end of the elastic block 42 can be connected to the outer end of the connecting block 41, and the outer end of the elastic block 42 can abut on the outer bottle body 20 and cover the second conducting hole 22; In the embodiment, there is a certain distance between the lower end of the middle of the elastic block 42 and the bottom inner side of the outer bottle body 20, that is, the lower side of the elastic block 42 is provided with an annular groove 421.
  • the outside air flow can first flow into the groove 421 through the second conducting hole 22, but because the outer end of the elastic block 42 still abuts on the inner wall of the outer bottle body 20, the adjustable cavity 21 is still airtight State; when the user lifts the inner bottle 10 upwards, the air pressure in the adjustable cavity 21 is reduced. Therefore, the pressure difference between the two sides of the elastic block 42 will be generated. Then the atmospheric pressure on the lower side of the elastic block 42 will press the elastic block 42 upwards.
  • the block 42 is tilted, and a gap is formed between the outer end of the elastic block 42 and the outer bottle body 20, that is, the groove 421 is in communication with the adjustable cavity 21. Therefore, the external airflow can flow into the adjustable cavity 21.
  • a dry powder sprayer As shown in FIG. 2, a dry powder sprayer.
  • the difference between this embodiment and the first embodiment lies in the arrangement of the elastic member 50.
  • an elastic member 50 is provided in the adjustable cavity 21.
  • the elastic member 50 is an elastic member capable of restoring elastic deformation such as a spring.
  • the elastic member 50 is vertically arranged In the adjustable cavity 21, one end of the elastic member 50 is disposed on the inner bottle body 10, and the other end of the elastic member 50 is disposed on the outer bottle body 20 or the second conducting device 40.
  • the inner bottle body 10 can be automatically jacked up by the elastic force of the elastic member 50, which is convenient for the user to operate.
  • the end of the elastic member 50 close to the inner bottle body 10 is sleeved on the outer side of the inner bottle body 10; and/or; the outer bottle body 20 is provided with a guide block 60, the guide block 60 has a guide groove 61, and the elastic member 50 is far away
  • One end of the inner bottle body 10 is arranged on the inner wall of the guide groove 61;
  • the elastic member 50 is sleeved on the inner bottle body 10, or the elastic member 50 is arranged in the guide block 60, which increases the restraint of the elastic member 50, reduces the possibility of the elastic member 50 shaking, and increases the elastic member 50 stability.
  • the bottom of the inner bottle body 10 can bulge downward, the elastic member 50 can be sleeved at the raised position of the inner bottle body 10, and the radius of the raised position is equal to or slightly smaller than the radius of the spring.
  • the guide block 60 can be directly arranged on the outer bottle body 20, or on the second conducting device 40, and adjusted according to the needs of the user; in this embodiment, because Only a single large-radius spring is used. Therefore, in order to ensure the normal ascent of the inner bottle body 10, the axis of the elastic member 50 is coincident with the axis of the outer bottle body 20, and the guide block 60 also needs to be set at the axis position. Therefore, the guide block 60 needs It is arranged on the second conducting device 40, and the guide groove 61 is opened on the upper side of the guide block 60, and the guide block 60 and the second conducting device 40 can be integrally formed.
  • the elastic member 50 can abut the second conducting device 40 on the inner wall of the outer bottle body 20, therefore, the second conducting device 40 does not need to be directly fixed to the outer bottle body 20. It is convenient to load and unload the dry powder sprayer.
  • the inner bottle body 10 includes an upper bottle body 101 and a lower bottle body 102.
  • the upper bottle body 101 and the lower bottle body 102 can be screwed together to facilitate the user to install the dry powder inside.
  • the bottom end of the inner bottle body 10 is also provided with a bottle holder 103, the inner bottle body 10 can be abutted on the work surface through the bottle holder 103;
  • the outer bottle body 20 is also provided with an upper cover 201, an upper cover 201 can be detachably connected to the outer bottle body 20.
  • the inner bottle body 10 moves to the uppermost end, the inner bottle body 10 can abut on the upper cover 201.
  • the user can also remove the upper cover 201 and remove the inner bottle body 10 from The outer bottle body 20 is taken out, which is convenient for the user to operate; the middle outer diameter of the inner bottle body 10 is slightly smaller than the inner diameter of the outer bottle body 20, thus reducing the possibility of friction between the inner bottle body 10 and the outer bottle body 20, and increasing the inner bottle body The reliability of the body 10 when sliding in the outer bottle body 20.
  • the lower end of the connecting pipe 14 is also provided with a tapered block 16 with the tip of the tapered block 16 facing downwards.
  • the radius of the upper end of the tapered block 16 is larger than the outer diameter of the connecting pipe 14, which reduces the airflow and sprays dry powder directly into the powder inlet 141 Possible.

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Abstract

一种干粉喷雾器，包括：内瓶体（10），内瓶体（10）内设有用于存储干粉的内腔（11）；外瓶体（20），内瓶体（10）的一端嵌设于外瓶体（20）内；沿外瓶体（20）的轴线方向，内瓶体（10）在外瓶体（20）内的位置可调；内瓶体（10）与外瓶体（20）之间形成可调空腔（21），内瓶体（10）上设有连通内腔（11）与可调空腔（21）的第一导通孔（12），外瓶体（20）上设有连通可调空腔（21）与外界的第二导通孔（22）；内瓶体（10）上设有设置于第一导通孔（12）上的第一导通装置（30），外瓶体（20）上设有设置于第二导通孔（22）上的第二导通装置（40）。

Description

一种干粉喷雾器
本申请要求于2019年7月31日提交中国专利局、申请号为201921226866.9、申请名称为一种干粉喷雾器的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及喷雾领域，尤指一种干粉喷雾器。
背景技术
目前市场上液体喷雾器很多，但对于干粉类产品如爽身粉、痱子粉等一般都是采用罐装或盒装，需要用勺子或扑粉头来使用，或者在罐体的罐口上设置有多个用于倾倒的小孔，使用时通过小孔将干粉扑到扑粉头上。这几种方式使用起来都很不方便，不小心容易造成干粉洒落，既污染环境，又造成浪费。
因此，市面上产生了干粉喷雾器，在干粉喷雾器的喷头处能够同时进行喷粉动作以及进气动作，但现有的干粉喷雾器在使用时，在干粉喷雾器的瓶体内存在较多的干粉残留，干粉喷雾器的利用率较低。
申请内容
为此，本申请实施例提供一种干粉喷雾器，减小了干粉残留在内腔内的可能，增加了干粉喷雾器的利用率。
为了实现上述目的，本申请实施例提供如下技术方案：
一种干粉喷雾器，包括：内瓶体，所述内瓶体内设有用于存储干粉的内腔，所述内瓶体上设有喷粉管道，所述喷粉管道的一端设置于所述内瓶体的外侧，所述喷粉管道的另一端设置于所述内瓶体的内腔内；外瓶体，所述内瓶体的一端嵌设于所述外瓶体内；沿所述外瓶体的轴线方 向，所述内瓶体在所述外瓶体内的位置可调；所述内瓶体与外瓶体之间形成可调空腔，所述内瓶体上设有连通所述内腔与所述可调空腔的第一导通孔，所述外瓶体上设有连通所述可调空腔与外界的第二导通孔；所述内瓶体上设有设置于所述第一导通孔上的第一导通装置，所述外瓶体上设有设置于所述第二导通孔上的第二导通装置；当所述内瓶体向靠近所述外瓶体的方向运动时，所述可调空腔的体积减小，所述可调空腔内的气体通过所述第一导通装置向所述内腔传输；当所述内瓶体向远离所述外瓶体的方向运动时，所述可调空腔的体积增大，外界的气体通过所述第二导通装置向所述可调空腔传输。
本技术方案中，通过内瓶体与外瓶体的设置，分离了内瓶体的内腔与可调空腔，在内腔进气过程中能够同时实现喷粉的动作，减小了干粉残留在内腔内的可能，增加了干粉喷雾器的利用率。
进一步，所述内瓶体内设有连接管道，所述连接管道的一端与所述喷粉管道连通，所述连接管道的另一端靠近所述第一导通孔。
本技术方案中，通过连接管道的设置，方便雾化后的干粉进入连接管道继而进入喷粉管道，增加了干粉喷雾器的喷雾可靠性，也减小了干粉残留在内腔内的可能，增加了干粉喷雾器的利用率。
进一步，所述连接管道远离所述喷粉管道的一端开设有多个进粉孔，所述进粉孔的半径小于所述连接管道的内径。
本技术方案中，通过半径较小的进粉孔的设置，减小了干粉结块后进入进粉孔的可能，继而减小了连接管道以及喷粉管道堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
进一步，所述进粉孔开设于所述连接管道的侧壁。
本技术方案中，通过将进粉孔开设在侧壁上，减小了可调空腔内的气流进入内腔时，直接将干粉冲击进入进粉孔的可能，使得气流与干粉能够混合均匀，增加了干粉喷雾器喷粉的可靠性。
进一步，所述喷粉管道上开设有第一混合孔，所述第一混合孔用于连通所述混合管道与所述内腔；和/或；所述连接管道上设有第二混合孔， 所述第二混合孔用于连通所述连接管道与所述内腔。
本技术方案中，通过第一混合孔与第二混合孔的设置，内腔内的气流能够通过第一混合孔以及第二混合孔再次对连接管道内或喷粉管道内的粉雾再次雾化，增加了干粉喷雾器喷雾的可靠性。
进一步，所述第二导通装置包括：连接块，设置于所述外瓶体的内壁；弹性块，所述弹性块用于覆盖所述第二导通孔；所述弹性块的一端设置于所述连接块，所述弹性块的另一端用于抵接于所述外瓶体的内壁；当所述内瓶体向远离所述外瓶体的方向运动时，所述弹性块远离所述连接块的一端与所述外瓶体的内壁之间设有间隙。
本技术方案中，通过连接块与弹性块的设置，在内瓶体向远离外瓶体的方向运动时，弹性块与外瓶体之间能够形成间隙，继而方便空气流入可调空腔内，实现了可调空腔内压力的自主调节。
进一步，当所述弹性块远离所述连接块的一端抵接于所述外瓶体的内壁时，所述弹性块与所述外瓶体的内壁之间设有连通腔，所述连通腔与所述第二导通孔连通。
本技术方案中，通过连通腔的设置，增加了气流对弹性块的压力，继而方便了气流顶起弹性块，增加了弹性块翘起的可靠性。
进一步，所述可调空腔内设有弹性件，所述弹性件的一端设置于所述内瓶体，所述弹性件的另一端设置于所述外瓶体或所述第二导通装置上。
本技术方案中，通过弹性件的设置，用户按压内瓶体后，内瓶体通过弹性件的弹力能够自动顶起，方便了用户进行操作。
进一步，所述弹性件靠近所述内瓶体的一端套设于所述内瓶体的外侧；和/或；所述外瓶体内设有导向块，所述导向块内导向槽，所述弹性件远离所述内瓶体的一端设置于所述导向槽的内壁。
本技术方案中，通过弹性件套设在内瓶体上，或将弹性件设置在导向块内，增加了弹性件受到的约束，减小了弹性件晃动的可能，增加了弹性件的稳定性。
进一步，所述第一导通装置为单向阀。
本技术方案中，通通过单向阀的选用，减小了干粉进入第一导通孔以及可调空腔内的可能，继而减小了第一导通孔堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
与现有技术相比，本申请提供的一种干粉喷雾器具有以下有益效果：
1、通过内瓶体与外瓶体的设置，分离了内瓶体的内腔与可调空腔，在内腔进气过程中能够同时实现喷粉的动作，减小了干粉残留在内腔内的可能，增加了干粉喷雾器的利用率。
2、通过半径较小的进粉孔的设置，减小了干粉结块后进入进粉孔的可能，继而减小了连接管道以及喷粉管道堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
3、通过第一混合孔与第二混合孔的设置，内腔内的气流能够通过第一混合孔以及第二混合孔再次对连接管道内或喷粉管道内的粉雾再次雾化，增加了干粉喷雾器喷雾的可靠性。
4、通过连接块与弹性块的设置，在内瓶体向远离外瓶体的方向运动时，弹性块与外瓶体之间能够形成间隙，继而方便空气流入可调空腔内，实现了可调空腔内压力的自主调节。
附图说明
为了更清楚地说明本申请的实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是示例性的，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图引申获得其它的实施附图。
本说明书所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本申请可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关 系的改变或大小的调整，在不影响本申请所能产生的功效及所能达成的目的下，均应仍落在本申请所揭示的技术内容得能涵盖的范围内。
图1是本申请一种干粉喷雾器的结构示意图；
图2是本申请一种干粉喷雾器的中部剖视图；
图3是本申请一种干粉喷雾器中连接管道的下部结构示意图；
图4是本申请另一种干粉喷雾器的中部剖视图。
附图标号说明：10.内瓶体，101.上瓶体，102.下瓶体，103.瓶托，11.内腔，12.第一导通孔，13.喷粉管道，131.第一混合孔，14.连接管道，141.进粉孔，142.第二混合孔，15.混合管道，16.锥形块，20.外瓶体，201.上盖，21.可调空腔，22.第二导通孔，30.第一导通装置，40.第二导通装置，41.连接块，42.弹性块，421.凹槽，50.弹性件，60.导向块，61.导向槽。
具体实施方式
以下由特定的具体实施例说明本申请的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本申请的其他优点及功效，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
根据本申请提供的一种实施例，如图1和图2所示，一种干粉喷雾器，包括：
内瓶体10，内瓶体10内设有用于存储干粉的内腔11，用户能够依据需要在内瓶体10内放置需要喷出的干粉(图中未示出)；内瓶体10上设有喷粉管道13，喷粉管道13的一端设置于内瓶体10的外侧，喷粉管道13的另一端设置于内瓶体10的内腔11内，因此，内腔11内的干粉能够通过喷粉管道13传输至外界；本实施例中，喷粉管道13水平设置在内瓶体10的上端。
外瓶体20，外瓶体20能够设置在内瓶体10的外侧，内瓶体10能够 从外瓶体20的上端插入外瓶体20，因此，内瓶体10的下端位于外瓶体20内；沿外瓶体20的轴线方向，即沿竖直方向，内瓶体10在外瓶体20内的位置可调，即内瓶体10能够在外瓶体20内的上端上下滑移。
内瓶体10与外瓶体20之间形成可调空腔21，即内瓶体10的外壁能够抵接在外瓶体20的内壁上，因此内瓶体10的外壁与外瓶体20的底端能够形成封闭的空间，即本实施例中的可调空腔21，具体地，可调空腔21为内瓶体10下侧与外瓶体20底部上侧之间形成的区域。
内瓶体10上设有用于连通内腔11与可调空腔21的第一导通孔12，外瓶体20上设有连通可调空腔21与外界的第二导通孔22；本实施例中，第一导通孔12设置在内瓶体10的底部中心，且第一导通孔12有且仅有一个，第二导通孔22设置在外瓶体20的底部，第二导通孔22设置为一个或多个，若干个第二导通孔22能够沿外瓶体20的底部环绕开设在外瓶体20的底部。
内瓶体10上设有设置于第一导通孔12上的第一导通装置30，外瓶体20上设有设置于第二导通孔22上的第二导通装置40，即当第一导通装置30导通时，内瓶体10的内腔11能够与可调空腔21连通，当第一导通装置30关闭时，内瓶体10的内腔11能够与可调空腔21分离；当第二导通装置40导通时，外界与可调空腔21能够连通，而当第二连通装置关闭时，外界与可调空腔21能够分离。
当内瓶体10向靠近外瓶体20的方向运动时，即内瓶体10向下运动时，可调空腔21的体积减小，可调空腔21内的气压能够增大，继而导通第一导通装置30，可调空腔21内的气体能够通过第一导通装置30向内腔11传输。
当内瓶体10向远离外瓶体20的方向运动时，即内瓶体10向上运动时，可调空腔21的体积增大，可调空腔21内的气压减小，继而导通第二导通装置40，外界的气体能够通过第二导通装置40向可调空腔21传输。
当用户向下按压内瓶体10后，可调空腔21内的气体能够通过第一 导通装置30向内腔11传输，由于内腔11与外界连通，因此，为保持内腔11仍然处于常压状态，内腔11内的气流能够沿着喷粉管道13向外喷出；由于内腔11内的干粉能够与刚通入的空气进行混合，形成粉雾，因此粉雾能够跟随气流沿着喷粉管道13向外喷出，实现了喷粉的效果。
当用户向上提起内瓶体10后，外界的气体能够通过第二导通装置40向可调空腔21传输，使得气体能够再次充入可调空腔21内；当用户停止向上提升内瓶体10时，外界气体不再注入可调空腔21，可调空腔21封闭，直至用户再次按压内瓶体10；用户持续按压、提起内瓶体10时，内瓶体10即可持续喷粉。
本实施例中，通过内瓶体10与外瓶体20的设置，分离了内瓶体10的内腔11与可调空腔21，在内腔11进气过程中能够同时实现喷粉的动作，减小了干粉残留在内腔11内的可能，增加了干粉喷雾器的利用率。
优选地，本实施例中，第一导通装置30为单向阀，因此，在用户向下按压内瓶体10后，在可调空腔21内的气压大于单向阀的导通条件时，单向阀即可导通，可调空腔21内的气流即可向内腔11内进行流动；通过单向阀的选用，减小了干粉进入第一导通孔12以及可调空腔21内的可能，继而减小了第一导通孔12堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
根据本申请提供的另一种实施例，如图2至图4所示，一种干粉喷雾器，本实施例与第一种实施例的区别在于连接管道14的设置。
在第一种实施例的基础上，本实施例中，内瓶体10内设有连接管道14，连接管道14能够沿竖直方向设置在内瓶体10内；连接管道14的一端与喷粉管道13连通，具体地，本实施例中，连接管道14的上端能够与喷粉管道13内侧的端部连通；连接管道14的另一端靠近第一导通孔12，即连接管道14的另一端能够向下延伸，直至靠近第一导通孔12；优选地，连接管道14能够可拆卸连接于内瓶体10上，具体地，连接管道14能够插接或螺纹连接在内瓶体10上。
本实施例中，通过连接管道14的设置，方便雾化后的干粉进入连接 管道14继而进入喷粉管道13，增加了干粉喷雾器的喷雾可靠性，也减小了干粉残留在内腔11内的可能，增加了干粉喷雾器的利用率。
优选地，连接管道14远离喷粉管道13的一端开设有多个进粉孔141，即进粉孔141开设在连接管道14的下端，进粉孔141的半径小于连接管道14的内径，具体地，本实施例中，进粉孔141的半径远小于连接管道14的半径。
本实施例中，通过半径较小的进粉孔141的设置，减小了干粉结块后进入进粉孔141的可能，继而减小了连接管道14以及喷粉管道13堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
进粉孔141开设于连接管道14的侧壁，即进粉孔141水平开设在连接管道14上；本实施例中，通过将进粉孔141开设在侧壁上，减小了可调空腔21内的气流进入内腔11时，直接将干粉冲击进入进粉孔141的可能，使得气流与干粉能够混合均匀，增加了干粉喷雾器喷粉的可靠性。
根据上述实施例的改进，本实施例中，喷粉管道13上开设有第一混合孔131，第一混合孔131用于连通混合管道15与内腔11，第一混合孔131能够开设在喷粉管道13的下侧；优选地，喷粉管道13的下侧还能够延伸形成混合管道15，能够向下延伸，且混合管道15的长度小于连接管道14的长度。
和/或连接管道14上设有第二混合孔142第二导通装置40，第二混合孔142第二导通装置40用于连通连接管道14与内腔11，本实施例中，第二混合孔142第二导通装置40能够开设在进粉孔141的上侧，且第二混合孔142第二导通装置40能够沿水平方向开设在连接管道14上，且第二混合孔142第二导通装置40能够环绕开设在连接管道14上，第二混合孔142能够开设一层或多层，具体地，第二混合孔142第二导通装置40能够开设在连接管道14的上端或中部。
本实施例中，通过第一混合孔131与第二混合孔142第二导通装置40的设置，内腔11内的气流能够通过第一混合孔131以及第二混合孔142第二导通装置40再次对连接管道14内或喷粉管道13内的粉雾再次 雾化，增加了干粉喷雾器喷雾的可靠性。
当用户将干粉喷雾器倒置进行喷雾时，干粉也能够通过第一混合孔131和/或第二混合孔141进入喷粉管道13内，当用户按压上侧的外瓶体20时，气流进入内腔后，能够再进入连接管道14，继而进入喷粉管道13对干粉进行雾化，因此，通过第一混合孔131与第二混合孔142第二导通装置40的设置，本实施例的干粉喷雾器也能够倒置使用。
根据上述实施例的改进，本实施例中，连接管道14的下端能够封闭，即粉雾只能够从侧面的进粉孔141的位置进入连接管道14内，而不能从其余的位置进入连接管道14，继而减小了干粉结块后进入进粉孔141的可能，继而减小了连接管道14以及喷粉管道13堵塞的可能，增加了干粉喷雾器喷粉的可靠性。
根据本申请提供的又一种实施例，如图2所示，一种干粉喷雾器，本实施例与第一种实施例的区别在于第二导通装置40的具体结构。
在第一种实施例的基础上，本实施例中，第二导通装置40包括：
连接块41，设置于外瓶体20底部的内壁上，连接块41能够以任意方式固定在外瓶体20上。
弹性块42，弹性块42能够用于覆盖第二导通孔22；弹性块42的一端设置于连接块41，弹性块42的另一端用于抵接于外瓶体20的内壁。
当内瓶体10向远离外瓶体20的方向运动时，弹性块42远离连接块41的一端与外瓶体20的内壁之间设有间隙；即内瓶体10向上运动时，弹性块42的外端能够向上翘起，因此，外界的气流能够向可调空腔21内流入。
本实施例中，通过连接块41与弹性块42的设置，在内瓶体10向远离外瓶体20的方向运动时，弹性块42与外瓶体20之间能够形成间隙，继而方便空气流入可调空腔21内，实现了可调空腔21内压力的自主调节。
优选地，当弹性块42远离连接块41的一端抵接于外瓶体20的内壁时，弹性块42与外瓶体20的内壁之间设有连通腔，连通腔与第二导通 孔22连通。
本实施例中，通过连通腔的设置，增加了气流对弹性块42的压力，继而方便了气流顶起弹性块42，增加了弹性块42翘起的可靠性。
具体地，本实施例中，第二导通孔22沿外瓶体20的轴线对称分布在外瓶体20的底部，因此，连接块41的截面为圆形，且连接块41的轴线与外瓶体20的轴线重合，连接块41位于多个第二导通孔22之间，即连接块41的半径小于第二导通孔22的轴线与外瓶体20轴线之间的间距。
弹性块42为圆环状，弹性块42的内端能够连接在连接块41的外端，弹性块42的外端能够抵接在外瓶体20上，并覆盖住第二导通孔22；本实施例中，弹性块42中部的下端与外瓶体20的底部内侧之间存在一定的间距，即弹性块42的下侧开设有环状的凹槽421。
外界的气流能够首先通过第二导通孔22将气流首先流动到凹槽421内，但由于弹性块42的外端仍然抵接在外瓶体20的内壁上，因此可调空腔21仍然处于密闭状态；当用户向上提起内瓶体10时，可调空腔21内的气压减小，因此，弹性块42两侧产生气压差，继而弹性块42下侧的大气压将向上压迫弹性块42，弹性块42翘起，弹性块42的外端与外瓶体20之间产生间隙，即凹槽421与可调空腔21连通，因此，外界的气流即可流动到可调空腔21内。
根据本申请提供的再一种实施例，如图2所示，一种干粉喷雾器，本实施例与第一种实施例的区别在于弹性件50的设置。
在第一种实施例的基础上，本实施例中，可调空腔21内设有弹性件50，弹性件50为弹簧等能够恢复弹性形变的弹性部件，具体地，弹性件50竖直设置在可调空腔21内，弹性件50的一端设置于内瓶体10，弹性件50的另一端设置于所述外瓶体20或第二导通装置40上。
本实施例中，通过弹性件50的设置，用户按压内瓶体10后，内瓶体10通过弹性件50的弹力能够自动顶起，方便了用户进行操作。
优选地，弹性件50靠近内瓶体10的一端套设于内瓶体10的外侧；和/或；外瓶体20内设有导向块60，导向块60内导向槽61，弹性件50 远离内瓶体10的一端设置于导向槽61的内壁；
通过弹性件50套设在内瓶体10上，或将弹性件50设置在导向块60内，增加了弹性件50受到的约束，减小了弹性件50晃动的可能，增加了弹性件50的稳定性。
具体地，内瓶体10的底部能够向下凸起，弹性件50能够套设在内瓶体10凸起的位置，且凸起位置的半径等于或略小于弹簧的半径。
结合第三种实施例所描述的干粉喷雾器，导向块60能够直接设置在外瓶体20上，也可以设置在第二导通装置40上，并依据用户的需要进行调节；本实施例中，由于只选用单个大半径弹簧，因此，为保证内瓶体10的正常上升，将弹性件50的轴线与外瓶体20的轴线重合，导向块60也需要设置在轴线位置，因此，导向块60需要设置在第二导通装置40上，导向槽61开设在导向块60的上侧，导向块60与第二导通装置40能够一体成型。
当可调空腔21内存在弹性件50时，弹性件50能够将第二导通装置40抵接在外瓶体20的内壁上，因此，第二导通装置40也无需直接固定在外瓶体20上，方便了干粉喷雾器的装卸。
根据上述任意一种实施例的改进，本实施例中，内瓶体10包括上瓶体101和下瓶体102，上瓶体101和下瓶体102能够螺纹连接，方便用户将干粉安装在内瓶体10中；内瓶体10的底端还设有瓶托103，内瓶体10的能够通过瓶托103抵接在工作台面上；外瓶体20上还设有上盖201，上盖201能够可拆卸连接在外瓶体20上，当内瓶体10向运动至最上端时，内瓶体10能够抵接在上盖201，用户也能够取下上盖201，将内瓶体10从外瓶体20中取出，方便用户进行操作；内瓶体10的中部外径略小于外瓶体20的内径，继而减小了内瓶体10与外瓶体20摩擦的可能，增加了内瓶体10在外瓶体20内滑移时的可靠性。
连接管道14的下端还设有锥形块16，锥形块16的尖端朝下，锥形块16的上端半径大于连接管道14的外径，减小了气流将干粉直接喷入进粉孔141的可能。
虽然，上文中已经用一般性说明及具体实施例对本申请作了详尽的描述，但在本申请基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本申请精神的基础上所做的这些修改或改进，均属于本申请要求保护的范围。

Claims (10)

  1. 一种干粉喷雾器，其特征在于，包括：
    内瓶体，所述内瓶体内设有用于存储干粉的内腔，所述内瓶体上设有喷粉管道，所述喷粉管道的一端设置于所述内瓶体的外侧，所述喷粉管道的另一端设置于所述内瓶体的内腔内；
    外瓶体，所述内瓶体的一端嵌设于所述外瓶体内；沿所述外瓶体的轴线方向，所述内瓶体在所述外瓶体内的位置可调；
    所述内瓶体与外瓶体之间形成可调空腔，所述内瓶体上设有连通所述内腔与所述可调空腔的第一导通孔，所述外瓶体上设有连通所述可调空腔与外界的第二导通孔；
    所述内瓶体上设有设置于所述第一导通孔上的第一导通装置，所述外瓶体上设有设置于所述第二导通孔上的第二导通装置；
    当所述内瓶体向靠近所述外瓶体的方向运动时，所述可调空腔的体积减小，所述可调空腔内的气体通过所述第一导通装置向所述内腔传输；
    当所述内瓶体向远离所述外瓶体的方向运动时，所述可调空腔的体积增大，外界的气体通过所述第二导通装置向所述可调空腔传输。
  2. 根据权利要求1所述的一种干粉喷雾器，其特征在于：所述内瓶体内设有连接管道，所述连接管道的一端与所述喷粉管道连通，所述连接管道的另一端靠近所述第一导通孔。
  3. 根据权利要求2所述的一种干粉喷雾器，其特征在于：所述连接管道远离所述喷粉管道的一端开设有多个进粉孔，所述进粉孔的半径小于所述连接管道的内径。
  4. 根据权利要求3所述的一种干粉喷雾器，其特征在于：所述进粉孔开设于所述连接管道的侧壁。
  5. 根据权利要求2所述的一种干粉喷雾器，其特征在于：所述喷粉管道上开设有第一混合孔，所述第一混合孔用于连通所述混合管道与所述内腔；
    和/或所述连接管道上设有第二混合孔，所述第二混合孔用于连通所述连接管道与所述内腔。
  6. 根据权利要求1所述的一种干粉喷雾器，其特征在于，所述第二导通装置包括：连接块，设置于所述外瓶体的内壁；
    弹性块，所述弹性块用于覆盖所述第二导通孔；所述弹性块的一端设置于所述连接块，所述弹性块的另一端用于抵接于所述外瓶体的内壁；
    当所述内瓶体向远离所述外瓶体的方向运动时，所述弹性块远离所述连接块的一端与所述外瓶体的内壁之间设有间隙。
  7. 根据权利要求6所述的一种干粉喷雾器，其特征在于：当所述弹性块远离所述连接块的一端抵接于所述外瓶体的内壁时，所述弹性块与所述外瓶体的内壁之间设有连通腔，所述连通腔与所述第二导通孔连通。
  8. 根据权利要求1所述的一种干粉喷雾器，其特征在于：所述可调空腔内设有弹性件，所述弹性件的一端设置于所述内瓶体，所述弹性件的另一端设置于所述外瓶体或所述第二导通装置上。
  9. 根据权利要求8所述的一种干粉喷雾器，其特征在于：所述弹性件靠近所述内瓶体的一端套设于所述内瓶体的外侧；
    和/或所述外瓶体内设有导向块，所述导向块内导向槽，所述弹性件远离所述内瓶体的一端设置于所述导向槽的内壁。
  10. 根据权利要求1～9中任意一项所述的一种干粉喷雾器，其特征在于：所述第一导通装置为单向阀。
PCT/CN2020/105197 2019-07-31 2020-07-28 一种干粉喷雾器 WO2021018142A1 (zh)

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CN210883370U (zh) * 2019-07-31 2020-06-30 赫蕾雪(上海)科技有限公司 一种干粉喷雾器
CN110498127A (zh) * 2019-07-31 2019-11-26 赫蕾雪(上海)科技有限公司 一种干粉喷雾器

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US1540198A (en) * 1924-09-24 1925-06-02 Josiah Flournoy Insecticide container and distributor
GB223230A (en) * 1923-10-08 1925-07-30 Marcel Franck Improvements in pocket atomisers
US1777278A (en) * 1928-06-25 1930-09-30 Henry O Benedict Dust gun
US2431081A (en) * 1945-06-19 1947-11-18 R C Can Co Powder spray dispenser
CN110436059A (zh) * 2019-07-31 2019-11-12 赫蕾雪(上海)科技有限公司 一种按压式干粉喷雾器
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Publication number Priority date Publication date Assignee Title
GB223230A (en) * 1923-10-08 1925-07-30 Marcel Franck Improvements in pocket atomisers
US1540198A (en) * 1924-09-24 1925-06-02 Josiah Flournoy Insecticide container and distributor
US1777278A (en) * 1928-06-25 1930-09-30 Henry O Benedict Dust gun
US2431081A (en) * 1945-06-19 1947-11-18 R C Can Co Powder spray dispenser
CN110436059A (zh) * 2019-07-31 2019-11-12 赫蕾雪(上海)科技有限公司 一种按压式干粉喷雾器
CN210883370U (zh) * 2019-07-31 2020-06-30 赫蕾雪(上海)科技有限公司 一种干粉喷雾器

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