TWI766561B - Foam spray can - Google Patents

Abstract

A foam spray can comprises a motor pump, a foaming tube and a nozzle. The motor pump can be used to suck air and solution and pump out the liquid-gas mixture. One end of the foaming tube is connected to the motor pump for transmitting the liquid-gas mixture pumped by the motor pump and fully mixing the air with the solution to produce foam. The nozzle is connected to the other end of the foaming tube to spray foam. The length of the foaming tube is between 10 to 500 cm, the tube inner diameter is between 0.8 to 20 mm, and the pressure of the liquid-gas mixture in the tube is between 8 to 32 PSI, thereby to provide sufficient time, space and conditions for the mixing of the air and the solution in the foaming tube to fully mix the air and the solution, and then to spray abundant foam from the nozzle.

Description

foam watering can

The present invention relates to a foam watering can, and more particularly, to a foam watering can that can generate a large amount of foam.

The watering can is a common and highly practical spraying device. Because of its small size, small footprint, easy portability and hand-held operation, it is widely used in different places such as homes, units and schools. Watering cans are often used in air humidification, water spraying for plant watering, and spraying of disinfectants and cleaning solutions in the cleaning and cleaning scenarios. When cleaning and cleaning the object, the liquid sprayed from the watering can contains a certain cleaning agent or disinfectant, and the liquid will generate a certain amount of foam. At this time, the watering can is used as a foam watering can.

In the cleaning and cleaning of objects, such as car cleaning, glass cleaning, etc., the liquid sprayed from the foam watering can is required to have relatively rich foam, and it is easy to use and operate. Existing foam spraying cans usually have dense sponges inserted into the nozzle portion thereof, and the pores on the sponge allow the liquid to be mixed with water and air when passing through the sponge to generate rich foam. After a long time of use, the sponge will absorb impurities in the liquid and block some of the pores in the sponge. Also, in order to generate a large amount of foam, it is necessary to pack a denser sponge in the nozzle. However, in order for the liquid to pass through the dense sponge, it is necessary to increase the pressure of the water injection, that is, to increase the pressure in the foam watering can. A common design increases the pressure inside the foam watering can by high-pressure gas injection, but this can bring some safety to its use. All hidden dangers, and inconvenient to use.

Furthermore, although the existing foam watering can has a method of injecting gas into the can to obtain rich foam, it requires the use of a large amount of cleaning agent, and is not environmentally friendly in use.

Therefore, the main purpose of the present invention is to provide a foam watering can that can generate rich foam without high pressure air injection and only needs less cleaning agent, so as to solve the above problems.

The purpose of the present invention is to provide a foam watering can, which can realize full mixing of air and solution in the pipeline without high pressure gas injection, so as to generate abundant foam.

In order to achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a foam watering can, including: a motor pump, which sucks in air and solution and pumps out the liquid-gas mixture; a foaming tube, one end of which is Connected to the motor pump, used to transmit the liquid-gas mixture pumped by the motor pump, and make the air and the solution fully mix to generate foam, wherein the length of the foaming tube is between 10cm and 500cm, The inner diameter of the tube is between 0.8mm and 20mm, and the pressure of the liquid-gas mixture in the foaming tube is between 8 and 32 PSI; and a nozzle is connected to the other end of the foaming tube for spraying foam.

In some embodiments, the ratio of the air to the solution in the liquid-gas mixture is between 1:1 and 10:1.

In some embodiments, the foam spray can further includes a first conduit for feeding air into the motor pump; and a second conduit for feeding solution into the motor pump.

In some embodiments, the foam watering can further includes a pot body and a cover body, wherein the pot body is used to accommodate the solution, and the cover body is used to accommodate the motor pump, the foaming tube, and the first pipe with this second pipe.

In some embodiments, one end of the second pipe is connected to the motor pump, and the other end extends into the kettle body to extract the solution.

In some embodiments, the solution includes water and a cleaning agent.

In some embodiments, the ratio of water to detergent in the solution is between 1000:1 and 1:1.

In some embodiments, the foam watering can further includes a regulating valve, connected between the first pipeline and the motor pump, for regulating the amount of air injected into the motor pump by the first pipeline.

In some embodiments, the foam watering can further includes a one-way valve disposed between the first pipeline and the motor pump to prevent the solution from flowing out when the foam watering can is poured.

In some embodiments, the foam tube is disposed on the inner side of the casing of the cover body in a circling manner.

In some embodiments, the cover body further includes an upper cover and a lower cover, the lower cover has a hollow cavity, and the cavity has a receiving seat for accommodating the motor pump.

In some embodiments, the cover body has a handle, and a battery is arranged inside the handle to provide the electric power of the motor pump.

In some embodiments, the cover body has a touch switch located on the upper side of the handle for controlling the switch of the motor pump.

Therefore, using the foam watering can provided by the present invention, the air and the solution sucked by the motor pump are fully mixed through the foaming tube and then sprayed out through a nozzle to spray rich foam, and high-pressure air injection is not required. At the same time, the foam watering can has a simple structure, Easy to carry and use.

The above description is only an overview of the technical solution of the present invention, in order to make it clearer In order to understand the technical means of this creation, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of this creation more obvious and easy to understand, the following preferred embodiments are given and combined with the accompanying drawings. , detailed as follows.

1: Handheld Foaming Can

10: Motor pump

11: one-way valve

12: Foam tube

14: Nozzle

16: First Pipeline

17: Tee joint

18: Second Pipeline

180: Filter

19: regulating valve

20: Pot body

22: Third Pipeline

24: Fourth Pipeline

30: Cover

32: upper cover

34: Lower cover

36: receiving seat

360: Connector

38: Handle

380: Battery

40: Knob

50: Waterproof plug

60: touch switch

The drawings, which are included to provide a further understanding of the embodiments of the present application, constitute a part of the specification, are used to illustrate the embodiments of the present application, and together with the written description, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some examples of the present application, and are not used to limit the embodiments of the present application. For those with ordinary knowledge in the art, of course, they can be derived from these drawings and obtained. other schemas. The schema includes:

[Fig. 1] It is an overall view of a hand-held foam watering can of the present invention.

[Fig. 2] is an exploded view of the hand-held foam watering can shown in Fig. 1.

[Fig. 3] is a three-dimensional schematic view of the motor pump and the pipeline in the hand-held foam watering can shown in Fig. 2. [Fig.

[FIG. 4] is a top view of the motor pump and pipeline shown in FIG. 3. [FIG.

Specific structural and functional details disclosed herein are merely representative and for purposes of describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as limited only to the embodiments set forth herein.

In the description of the present invention, it should be understood that the terms "center", "lateral", "top", "bottom", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The device or component referred to must have a particular orientation, or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, the term "comprising" and any variations thereof mean "at least comprising".

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two components. Those with ordinary knowledge in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an" and "an" are intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and/or "comprising" as used herein specify the presence of stated features, integers, steps, operations, units and/or components, but do not preclude the presence or addition of one or more Other features, integers, steps, operations, units, components and/or combinations thereof.

For ease of understanding, the illustration of the specific embodiment of the foam spraying can in this case is explained by taking a hand-held foam spraying can 1 as an example. Please refer to FIG. 1 and FIG. 2 , FIG. 1 is an overall view of a hand-held foam spraying can of the present invention, and FIG. 2 is an exploded view of the hand-held foam spraying can shown in FIG. 1 . for Dasuo In view of at least one of the above advantages or other advantages, an embodiment of the present invention provides a hand-held foam watering can 1 , which includes a motor pump 10 , a foaming tube 12 and a nozzle 14 . The motor pump 10 can be used for sucking in air and solution, and pumping out the liquid-air mixture. One end of the foaming tube 12 is connected to the motor pump 10 to transmit the liquid-gas mixture pumped by the motor pump 10, and to make the air and the solution fully mix to generate foam. The other end of the foaming tube 12 is connected to a nozzle 14 , and foam is sprayed through the nozzle 14 . The length of the foaming tube 12 is between 10 cm and 500 cm, the inner diameter of the tube is between 0.8 mm and 20 mm, and the pressure of the liquid-gas mixture in the foaming tube is between 8 and 32 PSI. This arrangement provides sufficient time, space and conditions for the mixing of the air and the solution in the foaming tube 12 , and then the nozzle 14 sprays abundant foam.

In a specific embodiment, the ratio of the air to the solution in the liquid-gas mixture is between 1:1 and 10:1. The hand-held foam watering can 1 can be used in common cleaning occasions, such as car cleaning, glass cleaning, etc. Between the gas-liquid mixing ratio, the mixing uniformity, fluidity and foaming ratio of the liquid-gas mixture are in the range of use. In the best state required, it can generate rich foam with a certain degree of fineness, thereby ensuring the cleaning or cleaning effect of different needs.

Referring to FIG. 3 in conjunction with FIG. 2 , FIG. 3 is a schematic diagram of the motor pump and the pipeline in the hand-held foam watering can shown in FIG. 2 . In the illustrated embodiment, the hand-held foam watering can 1 may further include a first conduit 16 for feeding air into the motor pump 10; and a second conduit 18 for feeding solution into the motor pump Pu 10. Through the first pipe 16 and the second pipe 18 respectively inputting air and solution to the motor pump 10, the injection amount of air and the input amount and speed of the solution can be effectively controlled, which helps to further accurately control the liquid-gas mixture. Gas-liquid mixing ratio.

In one embodiment, the hand-held foam watering can 1 may further include a regulating valve 19 connected between the first pipe 16 and the motor pump 10 for regulating the injection of the first pipe 16 . The amount of air entering the motor pump 10. In other words, the injection amount of the air from the first pipe 16 to the motor pump 10 is regulated by the regulating valve 19, so as to further regulate the gas-liquid mixing ratio of the liquid-gas mixture, thereby regulating the hand-held foam watering can The quality of the foam sprayed by the nozzle 14 of 1.

In one embodiment, further, the hand-held foam watering can 1 may further include a one-way valve 11 disposed between the first pipe 16 and the motor pump 10 to prevent the hand-held foam watering can 1 from tipping over. The solution flows out of the first line 16 in countercurrent.

In another embodiment, further, the hand-held foam watering can 1 may further include a filter screen (not shown in the figure), which is arranged between the first pipe 16 and the motor pump 10, and the first A duct 16 injects the air into the motor pump 10 for filtering. The filter screen can prevent impurities carried in the air from entering the foaming tube 12 to block the foaming tube 12 , thereby affecting the mixing effect or foaming effect of the liquid-gas mixture in the foaming tube 12 .

In the embodiment shown in FIG. 1 and FIG. 2 , the hand-held foam watering can 1 can include a can body 20 and a cover body 30 . The pot body 20 is used for containing the solution, and the cover body 30 is used for containing the motor pump 10 , the foaming tube 12 , the first pipe 16 and the second pipe 18 . The pot body 20 and the cover body 30 are connected and fixed in a screw threading manner, but not limited to this, they can also be connected in a snap-locking manner, and the two can be connected, fixed and sealed.

One end of the second pipe 18 is connected to the motor pump 10, and the other end extends into the kettle body 20 to extract the solution. The solution includes water and detergent. The ratio of water to detergent in this solution is between 1000:1 and 1:1. The capacity of the pot body 20 in the hand-held foam watering pot 1 is 1-2.5 liters (1000-2500 ml). For example, when the amount of water in the solution is 1000 ml, only 5 ml of detergent is mixed with water to spray rich foam from the nozzle 14 through the foaming tube 12 . Compared with the existing foam watering can, the usage amount of detergent can be saved and better foaming effect can be achieved. Please refer to again Referring to FIG. 2 , one end of the second pipe 18 extending into the pot body 20 is connected to a filter 180 at its end to filter the solution in the pot body 20 . In this way, when different types of solutions or cleaning agents are mixed in the pot body 20, the foaming effect of the liquid-gas mixture in the foaming tube 12 can be further improved, such as the size of the foaming amount and the density of the foam. Wait. Depending on the type of the solution, different filters 180 may be used. In the example of FIG. 2, the filter 180 is a filter screen.

Referring to FIG. 2 , FIG. 3 and FIG. 4 , in the illustrated embodiment, the regulating valve 19 is located on one side of the motor pump 10 and is connected with the first pipe 16 (input air) located above the motor pump 10 . A knob 40 is arranged on the top of the cover body 30 to control the regulating valve 19 . The regulating valve 19 and the knob 40 may be connected in a screw thread manner. The one-way valve 11 is disposed between the first pipe 16 and the motor pump 10 and at one end of the first pipe 16 close to the regulating valve 19 . The second pipe 18 is located on the same side of the motor pump 10 as the regulating valve 19 , which draws the solution from the kettle body 20 and feeds it into the motor pump 10 . After the air input from the first pipe 16 and the solution input from the second pipe 18 are mixed through a tee joint 17 , the liquid-gas mixture is input into the motor pump 10 through a third pipe 22 . The motor pump 10 is connected to the foaming tube 12 through a fourth pipeline 24 , and the liquid-gas mixture is pumped into the foaming tube 12 (as shown by the arrow in FIG. 3 ) for mixing and foaming, and then the nozzle 14 Squirt foam. The foaming tube 12 is disposed inside the casing of the cover body 30 in a circling manner. When using different detergents, adjusting the air intake can change or regulate the density of the foam. The more air, the thicker the foam, and the longer it stays on the cleaning surface, the better the cleaning power and the less cleaning agent used.

In one embodiment, the pipes are located above the motor pump 10 , and the foam tube 12 can be disposed above the motor pump 10 in a manner of circling the pipes, and then disposed on the cover 30 . inside the casing. The foaming tube 12 has a certain flexibility and is easy to be coiled, and the coiling method avoids bending and affects the transportation of the liquid-gas mixture, or even reduces foaming Mixing effect and foaming effect in tube 12 . The foaming tube 12 is arranged in this way, and the storage space thereof can be saved and the space in the cover body 30 can be fully utilized.

As shown in the figure, the cover 30 may further include an upper cover 32 and a lower cover 34, and the upper cover 32 and the lower cover 34 can be connected in a snap-locking manner. The lower cover 34 has a hollow cavity, and the cavity has a receiving seat 36 for accommodating the motor pump 10 . The motor pump 10 , the regulating valve 19 and the pipes can be installed in the receiving seat 36 . Thereby, the components are arranged in the hollow cavity of the lower cover 34 in a compact and orderly manner, so as to make full use of the space of the cover body 30 . The receiving seat 36 is connected with the nozzle 14 through a connecting piece 360 . In the figure, the receiving seat 36 and the nozzle can be connected and fixed in a threaded manner. One end of the foaming tube 12 communicates with the nozzle 14 after passing through the connecting piece 360 .

The cover 30 has a handle 38 through which the user can hold the hand-held foam spraying can 1 . The handle 38 may be provided with stripes to increase friction and prevent the user from slipping when using the hand-held foam spraying can 1 . Inside the handle 38 is a battery 380 for providing power to the motor pump 10 . The battery 380 is electrically connected to the motor pump 10 . In the illustrated example, the battery 380 is connected to the motor pump 10 via wires. The battery 380 can be a common disposable disposable battery, such as AAA battery, AAA battery, and the like. The battery 380 can also be a rechargeable battery, and the cover body 30 is provided with a charging hole for charging the battery 380 . In the example of FIG. 1 , the charging hole located on the upper cover 32 is covered by a waterproof plug 50 to protect the charging hole from water when charging is not required. When the battery 380 needs to be charged, the waterproof plug 50 can be pulled out. One end of the waterproof plug 50 can be fixed on the cover body 30 to prevent loss. But not limited to this. The waterproof plug 50 may also be provided separately from the cover body 30 .

In a specific embodiment, the cover 30 has a touch switch 60 located on the upper side of the handle 38 for controlling the switch of the motor pump 10 . Further, the touch switch 60 is located on one side of the upper cover 32 , and the knob 40 is located on the other side of the upper cover 32 .

Therefore, using the foam watering can provided by the present invention, after the air and the solution sucked by the motor pump are fully mixed through the foaming tube, abundant foam is sprayed through a nozzle, and high-pressure air injection is not required. In particular, compared to the conventional foam watering can, the present invention can generate the same amount of foam by using only about one tenth of the cleaning agent. The more air, the thicker the foam, and the longer it stays on the cleaning surface, the better the cleaning power and the less cleaning agent used. At the same time, the hand-held foam watering can provided by the present invention has a simpler and more compact structure, and is convenient to carry and use.

Through the detailed description of the preferred embodiments above, it is hoped that the features and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the claimed scope of the present invention.

1: Handheld Foaming Can

10: Motor pump

12: Foam tube

14: Nozzle

16: First Pipeline

18: Second Pipeline

180: Filter

19: regulating valve

20: Pot body

32: upper cover

34: Lower cover

36: receiving seat

360: Connector

38: Handle

380: Battery

40: Knob

50: Waterproof plug

Claims (13)

A foam watering can comprising: A motor pump, inhaling air and solution and pumping out the liquid-gas mixture; A foaming tube, one end of which is connected to the motor pump, is used to transmit the liquid-gas mixture pumped by the motor pump, and make the air and the solution fully mix to generate foam, wherein the length of the foaming tube is between Between 10cm and 500cm, the inner diameter of the tube is between 0.8mm and 20mm, and the pressure of the liquid-gas mixture in the foaming tube is between 8 and 32 PSI; and A nozzle is connected to the other end of the foaming tube for spraying foam. The foam watering can of claim 1, wherein the ratio of the air to the solution in the liquid-gas mixture is between 1:1 and 10:1. The foam spray can of claim 1, further comprising a first conduit for feeding air into the motor pump; and a second conduit for feeding solution into the motor pump. The foam watering can of claim 3, further comprising a pot body and a cover body, wherein the pot body is used for accommodating the solution, and the cover body is used for accommodating the motor pump, the foaming tube, the first pipeline and the Second pipeline. The foam watering can of claim 4, wherein one end of the second pipe is connected to the motor pump, and the other end extends into the can body to extract the solution. The foam watering can of claim 5, wherein the solution includes water and a cleaning agent. The foam watering can of claim 6, wherein the ratio of water to cleaning agent in the solution is between 1000:1 and 1:1. The foam watering can of claim 3, further comprising a regulating valve, connected between the first pipe and the motor pump, for regulating the amount of air injected into the motor pump by the first pipe. The foam watering can of claim 3, further comprising a one-way valve disposed between the first pipe and the motor pump. The foam watering can of claim 4, wherein the foaming tube is disposed inside the casing of the cover body in a circling manner. The foam watering can of claim 4, wherein the cover further comprises an upper cover and a lower cover, the lower cover has a hollow cavity, and the cavity has a receiving seat for accommodating the motor pump. The foam watering can of claim 11, wherein the cover has a handle, and a battery is arranged inside the handle to provide the electric power of the motor pump. The foam watering can of claim 12, wherein the cover has a touch switch located on the upper side of the handle for controlling the switch of the motor pump.

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