TWM674013U - High-pressure spray cans - Google Patents

Abstract

This invention is a high-pressure spray canister, which includes a canister, a bladder, a connector, a conduit, a pressure relief valve assembly, and a nozzle. The canister is hollow, and the interior of the bladder is used to be filled with a liquid, while the space between the canister and the bladder is used to be filled with a high-pressure gas. The connector is located at the center of the top of the bladder, and a channel is formed in the center of the connector. The conduit is accommodated in the bladder, and one end of the conduit is fixed to the sleeve section of the connector. The pressure relief valve assembly is set on the canister. The top of the tank body seals the opening of the tank body and the top of the connector. The nozzle is fixed to the top of the tank body and has a coupling portion for coupling to the pressure relief valve. The other side of the nozzle forms a spray pipe portion, and a spray channel is formed within the spray pipe portion. The interior of the coupling portion is interconnected with the interior of the spray channel of the spray pipe portion. The diameter of the spray channel gradually expands from the coupling portion toward the outside.

Description

High-pressure spray cans

This creation is in the field of technology applied to everyday items, specifically a high-pressure spray can.

High-pressure sprayers are commonly used in a wide range of applications, such as fire extinguishers. They typically consist of a bladder inside a tank body. The bladder contains a liquid, and high-pressure gas is pumped between the tank body and the bladder. A pressure relief assembly is installed at the top of the bladder body, and a nozzle is connected to the pressure relief assembly. Pressing the nozzle connects the liquid to the external atmospheric pressure, creating a pressure imbalance between the high-pressure gas and the liquid inside the tank body. This causes the liquid to be squeezed by the high-pressure gas and ejected from the nozzle.

Typical high-pressure spray cans are not limited to single-use. After each use, the liquid level within the canister decreases. Therefore, to avoid liquid waste, sufficient high-pressure gas is usually required to squeeze out the remaining liquid before the next use. This results in the need for higher-pressure gas. However, to ensure sufficient high-pressure gas filling within the canister and to meet the safety factor of the canister to prevent rupture, the explosion resistance of various components, such as the canister thickness and the pressure relief valve safety factor, must be increased. This, in turn, results in increased costs and safety issues.

The author of this invention, recognizing that the previously mentioned high-pressure spray cans still have safety and cost shortcomings in actual use, created this invention to improve upon them.

The primary purpose of this invention is to provide a high-pressure spray canister that utilizes a pressure relief valve to connect the conduit to a position at least halfway down the bladder. This reduces the pressure of the high-pressure gas filling. This allows the canister to be used at reduced pressure or with the same high-pressure gas pressure, significantly reducing the amount of residual liquid in the bladder, thereby reducing costs and avoiding waste.

In order to achieve the aforementioned creative purpose, the technical means used in this invention is to provide a high-pressure spray tank, which includes a tank body, a bladder, a connector, a conduit, a pressure relief valve assembly and a nozzle. The tank body is hollow with an opening formed on the top. The bladder is made of a soft material and is filled with a liquid. A storage space is formed between the tank body and the bladder, and the storage space is filled with a high-pressure gas. A hollow joint is formed in the center of the top of the bladder. The connector is fixed to the joint of the bladder. A channel is formed in the center of the connector. The conduit is accommodated in the bladder, and one end of the conduit is fixed to the fitting section of the connector. The pressure relief valve assembly is provided. The pressure valve assembly is mounted on the top of the tank body, sealing the tank opening and the top of the connector to balance the pressure difference between the inside and outside of the tank body. The nozzle is fixed to the top of the tank body and has a joint for coupling to the pressure relief valve. A nozzle is formed on the other side of the nozzle, and a nozzle is formed within the nozzle. The interior of the joint communicates with the interior of the nozzle of the nozzle. The nozzle forms a nozzle away from the joint. The nozzle has a diameter that gradually expands from the joint toward the nozzle.

In one embodiment of the present invention, the high-pressure spray tank described above has a connector formed on its bottom side with a fitting section. The fitting section has a positioning ring formed at its bottom end. The conduit has a groove formed opposite the positioning ring of the fitting section, allowing the positioning ring of the fitting section to fit into the groove of the conduit.

In one embodiment of the present invention, the high-pressure spray canister is configured such that the conduit extends from one end of the sleeve section to at least a position equal to or less than half the length of the bladder.

In one embodiment of the invention, the high-pressure spray tank is provided with a first inner diameter and a second inner diameter formed in the channel of the connecting member from the opening of the tank body downward in sequence. The first inner diameter is larger than the second inner diameter, so that the connecting member forms a ring-shaped blocking surface between the first inner diameter and the second inner diameter due to the diameter difference. The pressure relief The valve comprises an outer cover, a slider, and an elastic body, with the slider and the elastic body sequentially housed within the first inner diameter of the connector. One end of the elastic body elastically abuts against the blocking surface. The outer cover seals the opening of the tank body and has a central through-hole connecting to the passage of the connector. One end of the slider, which is different from the elastic body, elastically abuts against the outer cover.

In one embodiment of the present invention, the elastic body of the high-pressure spray can is a spring.

In one embodiment of the present invention, the high-pressure spray can is provided with a first gasket around the opening of the outer cap and the can body, and a second gasket is provided between the outer cap and the top surface of the connector. The slider is spaced apart from the second gasket to elastically press against the inner side of the outer cap.

In one embodiment of the present invention, the high-pressure spray tank is configured such that the nozzle is fixed to the top of the outer cover of the pressure relief valve, and the nozzle's coupling portion penetrates a through-hole in the outer cover, with one end of the coupling portion being connected to the slider.

In one embodiment of the present invention, the high-pressure spray tank described above has a spray structure within the nozzle of the nozzle tube. The spray structure comprises a plurality of radially protruding ridges on the inner wall of the nozzle channel of the nozzle tube. The ridges are angled at both ends to form an oblique radial shape.

In one embodiment of the present invention, the high-pressure spray tank described above has a spray structure installed in the nozzle of the nozzle tube at the nozzle channel. The spray structure forms a tapered polygonal hole in the nozzle channel of the nozzle tube, and each angled line between the polygonal holes forms an angle at both ends.

In one embodiment of the present invention, the high-pressure spray tank described above has a spray structure disposed within the nozzle of the nozzle tube. The spray structure is formed by several spiral protrusions protruding from the inner wall of the nozzle of the nozzle tube.

10: Tank

11: Opening

12: Storage Space

20: Gallbladder

200: Joint

21: Connectors

210: Fitting Section

211: Positioning Ring

22: Channel

220: First inner diameter

221: Second inner diameter

222: Block the face

30: Catheter

300: Groove

40: Pressure relief valve assembly

41: Outer cover

410: Perforation

42: Slider

43: Elastic body

44: First gasket

45: Second gasket

50, 50A, 50B, 50C: Nozzle

51: Junction

52, 52A, 52B, 52C: Spray pipe

520, 520A, 520B, 520C: Spray channel

521: Nozzle

521A: Raised Strips

521B: Angle line

521C: spiral convex body

[Figure 1] is a three-dimensional exterior view of this work.

[Figure 2] is a partial 3D exploded view of this work.

[Figure 3] is a partial cross-sectional view of this work.

[Figure 4] is a partial cross-sectional action drawing of this work.

[Figure 5] is a three-dimensional external view of the first embodiment of the nozzle structure of this invention.

Figure 6 is a three-dimensional cross-sectional view of Figure 5.

[Figure 7] is a three-dimensional external view of the second embodiment of the nozzle structure of this invention.

Figure 8 is a three-dimensional cross-sectional view of Figure 7.

[Figure 9] is a three-dimensional external view of the third embodiment of the nozzle structure of this invention.

Figure 10 is a three-dimensional cross-sectional view of Figure 9.

As shown in Figures 1 to 3, the high-pressure spray tank of this invention includes a tank body 10, a bladder 20, a connector 21, a conduit 30, a pressure relief valve assembly 40, and a nozzle 50.

The tank body 10 is hollow, and an opening 11 is formed on the top;

The bladder 20 is made of a soft material and is filled with a liquid. A accommodating space 12 is formed between the tank body 10 and the bladder 20. The accommodating space 12 is filled with a high-pressure gas. A hollow joint 200 is formed in the center of the top of the bladder 20.

The connector 21 is secured to the joint 200 of the liner 20. A channel 22 is formed in the center of the connector 21. A first inner diameter 220 and a second inner diameter 221 are formed in this channel 22, extending downward from the opening 11 of the tank body 10. The first inner diameter 220 is larger than the second inner diameter 221, allowing the connector 21 to form a ring-shaped stopper 222 due to the diameter difference between the first and second inner diameters 220 and 221. The connector 21 also has a fitting section 210 formed on its bottom side, with a positioning ring 211 formed at its bottom end.

The catheter 30 is housed within the bladder 20, with one end of the catheter 30 secured to the fitting section 210 of the connector 21. A recess 300 is formed in the catheter 30 opposite the locating ring 211 of the fitting section 210, allowing the locating ring 211 of the fitting section 210 to engage within the recess 300 of the catheter 30. The catheter 30 extends from one end of the fitting section 210 to at least a point equal to or less than half the length of the bladder 20.

The pressure relief valve assembly 40 is mounted on the top of the tank 10 and seals the opening 11 of the tank 10 and the top of the connector 21. The pressure relief valve assembly 40 includes an outer cover 41, a slider 42, and an elastic body 43.

The slider 42 and the elastic member 43 are sequentially housed within the first inner tube 220 of the connector 21. The elastic member 43 can be a spring, with one end of the elastic member 43 elastically abutting against the blocking surface 222. The outer cover 41 seals the opening 11 of the can 10 and has a central through-hole 410 connecting to the passage 22 of the connector 21. An end of the slider 42, which is opposite to the elastic member 43, elastically abuts against the outer cover 41.

A first gasket 44 is installed around the outer lid 41 and the opening of the can body 10. A second gasket 45 is installed between the outer lid 41 and the top surface of the connector 21.

The nozzle 50 is fixed to the top of the outer cover 41 of the pressure relief valve assembly 40 and has a coupling portion 51. The coupling portion 51 passes through a through-hole 410 in the outer cover 41. One end of the coupling portion 51 is connected to the slider 42. A nozzle 50 has a nozzle tube 52 formed on one side. A nozzle channel 520 is formed within the nozzle tube 52. The interior of the coupling portion 51 communicates with the interior of the nozzle channel 520 of the nozzle tube 52. A nozzle outlet 521 is formed in the nozzle channel 520 away from the coupling portion. The nozzle channel 520 has a diameter that gradually expands from the coupling portion 51 toward the nozzle outlet 521.

Furthermore, the nozzle tube 52 of the nozzle 50 of this embodiment can have different lengths according to actual needs, and the diameter of the nozzle 521 can also be changed as needed to achieve optimal performance when the high-pressure spray can is used in different applications.

When in use, as shown in FIG4 , the user can press the top of the nozzle 50 to press the slider 42 and the elastic body 43 of the pressure relief valve assembly 40 via the coupling portion 51 of the nozzle 50, so that the outside atmospheric air is connected to the channel 22 in the connector 21 via the coupling portion 51 of the nozzle 50, thereby causing the liquid in the bladder 20 to be discharged from the tank body 10. The high-pressure gas in the nozzle 50 creates a pressure imbalance. Consequently, the high-pressure gas squeezes the liquid in the bladder 20, where the pressure is lower. This causes the liquid to be ejected sequentially through the channel 22 of the connector 21, the interior of the junction 51 of the nozzle 50, and the nozzle 520 of the nozzle tube 52. The nozzle 521 of the nozzle 520 forms a gradual expansion pattern, providing a wider spray area.

Please refer to Figures 5 and 6, which illustrate the first embodiment of the spray structure of the present invention's nozzle 50A. The nozzle section 52A is provided with a spray structure within the nozzle channel 520A. This spray structure comprises a plurality of radially protruding ridges 521A on the inner wall of the nozzle channel 520A. These ridges 521A are angled at both ends, allowing them to form an oblique radial pattern. This allows the ridges 521A to guide the liquid during spraying, thereby improving spray efficiency, such as spray intensity and distance.

Please refer to Figures 7 and 8, which illustrate a second embodiment of the spray structure of the present invention's nozzle 50B. The nozzle section 52B is provided with a spray structure within the nozzle channel 520B. This spray structure forms a tapered polygonal hole within the nozzle channel 520B of the nozzle section 52B. As shown in the figure, the hole is a hexagonal hole. Each corner line 521B between the polygonal holes forms an angle at both ends, thereby improving spray efficiency.

Please refer to Figures 9 and 10, which illustrate a third embodiment of the spray structure of the present invention's nozzle 50C. The nozzle 52C is equipped with a spray structure within the nozzle channel 520C. This spray structure comprises several spiral protrusions 521C protruding from the inner wall of the nozzle channel 520C. These spiral protrusions 521C guide the liquid in a swirling motion, enhancing spray efficiency.

This invention has been described through the above-mentioned embodiments and variations. All embodiments and variations of this invention are merely illustrative. Based on the essential spirit and scope of this invention, all variations of high-pressure spray tanks that include the above-mentioned features are covered by this new invention.

10: Tank

12: Storage Space

20: Gallbladder

200: Joint

21: Connectors

210: Fitting Section

211: Positioning Ring

22: Channel

220: First inner diameter

221: Second inner diameter

222: Block the face

30: Catheter

300: Groove

40: Pressure relief valve assembly

41: Outer cover

42: Slider

43: Elastic body

44: First gasket

45: Second gasket

50: Spray nozzle

51: Junction

52: Spray pipe

520: Spray

521: Nozzle

Claims (10)

A high-pressure spray can comprising: A can body, which is hollow and has an opening formed on the top; A bladder, which is made of a soft material and is filled with a liquid. A accommodating space is formed between the tank body and the bladder, which is filled with a high-pressure gas. A hollow joint is formed at the top of the bladder. A connecting piece, which is fixed to the joint of the bladder and has a channel formed in the center of the connecting piece; A conduit, the conduit being housed in the bladder, and one end of the conduit being secured to the sleeve portion of the connector; A pressure relief valve assembly is installed at the top of the tank body and seals the opening of the tank body and the top of the connector to balance the pressure difference between the inside and outside of the tank body; and A nozzle is fixed to the top of the tank body. The nozzle has a coupling portion for coupling to the pressure relief valve and a nozzle portion on the other side. A nozzle channel is formed within the nozzle channel. The interior of the coupling portion and the nozzle channel of the nozzle channel are interconnected. The nozzle channel forms a nozzle away from the coupling portion. The diameter of the nozzle channel gradually expands from the coupling portion toward the nozzle. The high-pressure spray tank as described in claim 1, wherein the connector has a fitting section formed on its bottom side, a positioning ring formed on its bottom end, and the conduit has a groove formed opposite to the positioning ring of the fitting section, so that the positioning ring of the fitting section fits into the groove of the conduit. The high-pressure spray tank as described in claim 1 or 2, wherein the conduit extends from one end of the sleeve section to at least a position equal to or less than half the length of the bladder. The high-pressure spray tank as described in claim 1, wherein the passage of the connecting member is formed with a first inner tube diameter and a second inner tube diameter in order from the opening of the tank body downward, the first inner tube diameter being larger than the second inner tube diameter, so that the connecting member forms an annular stop surface between the first inner tube diameter and the second inner tube diameter due to the diameter difference, and the pressure relief valve is The container comprises an outer cover, a slider, and an elastic body, wherein the slider and the elastic body are sequentially accommodated within the first inner diameter of the connector, and one end of the elastic body elastically abuts against the blocking surface. The outer cover seals the opening of the container body and has a central through-hole for connecting to the passage of the connector. The slider, which is different from the elastic body, elastically abuts against the outer cover. The high-pressure spray tank as described in claim 4, wherein the elastic body is a spring. The high-pressure spray tank as described in claim 5, wherein a first gasket is provided around the opening of the outer cover and the tank body, and a second gasket is provided between the outer cover and the top surface of the connector, and the slider is spaced apart from the second gasket to elastically press against the inner side of the outer cover. The high-pressure spray tank as described in claim 4, wherein the nozzle is fixed to the top of the outer cover of the pressure relief valve, and the coupling portion of the nozzle passes through the through hole of the outer cover, and one end of the coupling portion is connected to the slider. The high-pressure spray tank as described in claim 1, wherein the nozzle portion of the nozzle has a spray structure disposed within the nozzle channel. The spray structure comprises a plurality of radially protruding ridges disposed on the inner wall of the nozzle channel of the nozzle portion, and the ridges are angled at both ends to form an oblique radial shape. The high-pressure spray tank as described in claim 1, wherein the nozzle portion of the nozzle is provided with a spray structure within the nozzle channel. The spray structure forms a tapered polygonal hole in the nozzle channel of the nozzle portion, and each angled line between the polygonal holes forms an angle at both ends. The high-pressure spray tank as described in claim 1, wherein the nozzle of the nozzle has a spray structure disposed within the nozzle channel. The spray structure is formed by a plurality of spiral protrusions protruding from the inner wall of the nozzle channel of the nozzle.