TWI760223B - High-pressure spray can and valve mechanism for high-pressure spray can - Google Patents

Abstract

The invention is a high-pressure spray can, comprising a can body, a valve mechanism and two bead bodies. The valve mechanism includes a valve assembly and a switch seat. The valve assembly is sealed and fixed on the tank body and can communicate with the inside and outside of the tank. The top end of the switching seat is connected with the valve assembly, and includes two channels, a positive spray water suction port and a reverse spray water suction port. The two water suction ports are respectively connected with the two channels, and are respectively connected with the liquid agent outlet of the valve assembly through the two channels. The two beads are respectively movably arranged in the two channels, and can respectively control the communication or blocking of the forward spray water suction port and the reverse spray water suction port by moving. Using the inclined inner walls of the two channels, the two beads can be linked at the same time, so that the liquid agent can be sprayed smoothly when the tank is in the forward spraying state, the reverse spraying state and the horizontal state without leaking the propellant, and there will be no residual liquid agent left. inside the tank.

Description

High-pressure spray can and valve mechanism for high-pressure spray can

The present invention relates to a container for containing and spraying product liquid agent, especially a container that can spray liquid agent smoothly when it is used in forward spraying state, reverse spraying state and horizontal spraying state without leaking propellant.

For the needs of consumers in the modern terminal market, there are countless high-pressure spray can products innovatively developed by relevant manufacturers and spanning various fields. Therefore, high-pressure spray can products have been widely used in people's daily life. For example, hair care sprays, kitchen and bath cleaners and insecticides in personal and household products; or carburetor cleaners, air fresheners and paint sprays in automotive and industrial products; even police, Security personnel and women as pepper spray for their own safety and more.

The high-pressure spray can used to spray the product liquid in the conventional technology has a can opening at the top of the can body; the valve assembly is sealed and fixed on the can opening of the can body; the head end of the suction pipe installed in the can body is connected to the valve assembly, and The bending direction of the end of the slightly curved straw is usually fixed to the same side as the nozzle opening of the nozzle at the top of the high-pressure spray tank, and the suction port at the end of the straw is close to the corner where the tank body and the bottom of the tank are connected. Therefore, the water suction port can be submerged and positioned in the liquid agent in the bottom of the tank; when the high-pressure spray tank is in use, the liquid agent and the propellant (usually compressed gas, such as nitrogen N ₂ ) are filled in the tank, and the propellant is in the tank. The pressure built up in the body pushes the liquid into the straw, and after passing through the valve assembly, it is ejected from the nozzle of the spray head.

The key to the operation principle of the high-pressure spray can product is that when the valve assembly and the suction tube are installed in the sealed tank, the actual usable volume in the tank at this time is usually filled with liquid agent accounting for about 70%, while the propellant (such as nitrogen N2 ) accounts for about 30%, and this volume proportion can be sprayed almost completely after the tank product is used up; the propellant of nitrogen N2 in the tank is incompatible with the liquid, and the proportion of nitrogen N2 is higher than that of air. It is light, so nitrogen N2 is suspended on the liquid surface in the sealed tank; further, the suction port at the end of the straw needs to be immersed in the liquid in the bottom of the tank, so that when the user presses the nozzle, the valve assembly When the valve stem is in the open state, and the liquid agent squeezed by the propellant at the same time will flow rapidly to the valve assembly through the suction port at the end of the suction pipe and then be ejected from the nozzle of the spray head; on the contrary, if the suction port at the end of the suction pipe of the valve assembly Instead of being immersed in the liquid agent but exposed to the propellant, when the user presses the spray head, the propellant quickly escapes from the valve assembly and the liquid agent cannot be ejected with it, resulting in the residual liquid agent remaining in the tank. form waste. In other words, if the liquid agent capacity in the tank is only half or less, when the traditional high-pressure spray tank is used for reverse spraying, the tank top faces the ground and the liquid agent also flows in the same direction, so the propellant is It is located above the liquid level, and at the same time, the suction port at the end of the straw is exposed to the propellant, so when the user presses the nozzle, the liquid cannot enter the suction port at the end of the straw located above, but the propellant quickly The water enters the suction port and flows to the valve assembly and is sprayed from the nozzle of the spray head, so this is the disadvantage of the conventional high-pressure spray can.

In order to solve the problem that traditional high-pressure spray cans cannot be sprayed backwards, a side bead valve mechanism capable of backward spraying is developed in the high-pressure spray cans of the prior art. Please refer to FIG. 10 to FIG. 13 , which are high-pressure spray cans using a side ball valve mechanism in the prior art. The side bead valve mechanism has a valve assembly 911 , a switch seat 912 , a suction pipe 92 , a reverse spray suction port 93 , and a bead body 94 , and the suction pipe 92 has a positive spray suction port 921 .

As shown in FIG. 10, when the tank is used in the forward spray state, the beads 94 slide down and block the reverse spray suction port 93, and the forward spray suction port 921 of the suction pipe 92 can be immersed in the liquid in the tank In the agent A, when the user presses the spray head 98, the valve stem of the valve assembly 911 is in an open state, and the pressure formed by the propellant B in the tank can push the liquid agent A into the positive spray water suction port 921, and the liquid agent A sequentially It is sprayed from the nozzle 981 of the spray head 98 through the positive spray channel 922 , the common channel 923 , the liquid agent inlet 924 , and the liquid agent outlet 925 .

As shown in FIG. 11 , when the high-pressure spray can held by hand is used in the inverted spray state, the spray head 98 is facing the ground, so the liquid agent A also flows in the same direction, and the beads 94 are gravitationally and fall to the ground. When the user presses the spray head 98, the valve assembly 911 is opened, and the pressure formed by the propellant B in the tank can push the liquid A to flow in. The water suction port 93 is sprayed backward, and the liquid agent A bypasses the reverse spray channel 931 and is sequentially sprayed from the common channel 923 , the liquid agent inlet 924 , and the liquid agent outlet 925 , and then sprayed by the nozzle 981 of the spray head 98 .

That is to say, the switching seat 912 of the side ball valve mechanism is a single ball single channel side ball switching seat 912; however, although the side ball valve mechanism of the prior art uses a single ball single channel side ball switching seat 912 can achieve reverse spraying, but it still has the following disadvantages:

First, please refer to FIG. 10 and FIG. 11 . When the hand-held high-pressure spray can is used in the forward spraying state, the beads 94 will slide down due to the action of gravity and block the reverse spray suction port 93, so the forward spray suction port 921 of the suction pipe 92 can be immersed in the forward spraying state. The liquid agent A is sprayed normally, and the propellant B above the liquid level will not be leaked from the reverse spray suction port 93; The direction of the ground slides down and the reverse spray suction port 93 is immersed in the liquid agent A, so the liquid agent A can be smoothly sprayed from the nozzle 981 of the spray head 98 in the reverse spray state; at the same time, the forward spray suction port 921 of the suction pipe 92 is not immersed In the liquid agent A, it is exposed to the propellant B located above the liquid surface, so the propellant B is also instantly sprayed from the positive spray suction port 921 of the suction pipe 92 through the common channel 923 . In other words, although the side bead valve mechanism of the prior art can realize reverse spraying, since there is no element that can block the forward spraying water suction port 921 of the suction pipe 92 during reverse spraying, the propellant B also leaks during the backward spraying. spray out and cause residual liquid in the tank to occur.

Second, please refer to FIG. 12, when the high-pressure spray can held by hand is used in the horizontal spraying state, at this time, since the wall supporting the bead body 94 is horizontal, the bead body 94 will not be fixed in the open or closed position due to the action of gravity The position of the water jet suction port 93, on the contrary, moves indefinitely from left to right, resulting in sometimes opening the back jet water suction port 93 or sometimes closing the back jet water suction port 93; at this time, if the amount of the liquid agent A in the tank is not enough to submerge the suction pipe at the same time When the user presses the nozzle 98 to make the valve stem of the valve assembly 911 open, when the user presses the nozzle 92 for the forward spray suction port 921 and the reverse spray suction port 93, the forward spray suction port 921 of the suction pipe 92 is close to the can body and the canister. The bottom is connected to the corner, so the positive spray suction port 921 of the suction pipe 92 can be immersed in the liquid agent A in the tank and sprayed out smoothly; The spray suction port 93 drifts erratically, so that the propellant B will intermittently leak out from the reverse spray suction port 93 through the common channel 923 together. Agent A collides to generate turbulent flow, which eventually leads to intermittent spraying of liquid agent A. At this time, propellant B leaks and sprays from the reverse spray suction port 93 to form waste, resulting in the occurrence of residual liquid in the tank.

Third, please refer to FIG. 13 , when the high-pressure spray can held by hand is in a horizontal spray state and the spray head 98 continues to be tilted toward the ground, if the volume of the liquid agent A in the can is only half or less, the beads 94 Under the action of gravity, it slides down and opens the reverse spray suction port 93 . Since the amount of the liquid agent A in the tank is insufficient at this time, neither the reverse spray suction port 93 nor the forward spray suction port 921 of the suction pipe 92 can be immersed in the liquid agent A in the tank. The forward spray water suction port 921 may be exposed to the propellant B at the same time. When the user presses the spray head 98 and opens the valve assembly 911, the propellant B will be instantly sprayed from the reverse spray water suction port 93 and the forward spray water suction port 921 of the straw 92. Through the common channel 923, all of them are instantly discharged; and the remaining liquid agent A remains in the tank.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a high-pressure spray can and a valve mechanism for the high-pressure spray can, which utilizes two beads to respectively control the communication or resistance of the first water suction port and the second water suction port. It can be broken, and the propellant will not leak when used in the forward spray state and in the reverse spray state. In addition, the design of the inclined inner wall of the two channels enables the double beads to move quickly at the same time, so that when the tank is in a horizontal spray state, the liquid agent can be sprayed smoothly without leaking the propellant, and there will be no residual liquid agent at the same time. left in the tank.

In order to achieve the above-mentioned creative purpose, the technical means used in the present invention is to design a valve mechanism for a high-pressure spray tank, which is used to be arranged on a tank body and can communicate with the inside and outside of the tank. an inner space and an installation tank mouth; the valve mechanism for high-pressure spray cans includes: a first reference direction, which is parallel to the axis of the tank and toward the top of the tank; a second reference direction, which is perpendicular to the first reference direction and faces the radial outer side of the tank; a third reference direction, which is parallel to the axis of the tank and toward the bottom end of the tank; A valve assembly, which is sealed and fixed on the installation tank mouth of the tank body, the valve assembly has a liquid agent inlet and a liquid agent outlet, the liquid agent inlet is located in the inner space of the tank body, the liquid agent The outlet is located outside the tank; the liquid agent inlet selectively communicates with the liquid agent outlet; A switch seat, the top of which is engaged with the bottom end of the valve assembly and communicated with the valve assembly, which includes a first channel, which includes a first communication port, which is formed at one end of the first channel facing the first reference direction and communicated with the liquid agent inlet; a first inclined inner wall, which is located on one side of the first channel in the second reference direction; the first inclined inner wall is inclined to the axis of the tank body, and extends from the end facing the first reference direction to the One end of the third reference direction extends obliquely toward the second reference direction; a first water suction port, which is communicated with the first channel, and is communicated with the liquid agent inlet through the first communication port of the first channel; a second channel, which includes a second communication port, which is formed at one end of the second channel facing the third reference direction and communicated with the liquid agent inlet; a second inclined inner wall, which is located on one side of the second channel in the second reference direction; the second inclined inner wall is inclined to the axis of the tank body, and extends from one end facing the third reference direction to the One end of the first reference direction extends obliquely toward the second reference direction; a second water suction port, which is communicated with the second channel, and is communicated with the liquid agent inlet through the second communication port of the second channel; a first bead, which is movably disposed in the first channel, and selectively connects or blocks the first water suction port and the liquid agent inlet; a second bead, movably disposed in the second channel, and selectively connecting or blocking the second water suction port and the liquid agent inlet; in, When the first reference direction is vertically upward, the first water suction port is connected to the liquid agent inlet, and the second bead blocks the second communication port, whereby the second bead blocks the second water suction port with the liquid inlet; When the first reference direction is vertically downward, the second suction port is connected to the liquid agent inlet, and the first bead blocks the first communication port, whereby the first bead blocks the first bead The suction port and the liquid agent inlet; When the second reference direction is vertically downward, the first ball abuts against the first inclined inner wall and stops at the lower end of the first inclined inner wall, whereby the first water suction port communicates with the A liquid agent inlet, and the second bead abuts against the second inclined inner wall and stagnates at the lower end of the second inclined inner wall, whereby the second water suction port is communicated with the liquid agent inlet.

In order to achieve the above-mentioned creation purpose, the technical means adopted in the present invention is to design a high-pressure spray can, which comprises: a tank body, which includes an inner space and an installation tank opening which are communicated with each other; a spray head, which includes a nozzle; A valve mechanism for a high-pressure spray can as described above, which is arranged on the can body and can communicate with the inside and outside of the can; the first reference direction is parallel to the axis of the can body; the valve assembly is The liquid agent outlet of the valve assembly is connected to the nozzle of the spray head.

Further, in the valve mechanism for a high-pressure spray can, the included angle between the first inclined inner wall and the first reference direction is 1 to 3 degrees; the second inclined inner wall and the third reference The included angle of the directions is 1 degree to 3 degrees.

Further, in the valve mechanism for a high-pressure spray can, the included angle between the first inclined inner wall and the first reference direction is 1.5 degrees; the included angle between the second inclined inner wall and the third reference direction is 1.5 degrees. is 1.5 degrees.

Further, in the valve mechanism for a high-pressure spray can, the switch seat further includes a body, the body includes a common channel, which is communicated with the liquid agent inlet, and the first communication port and the first communication port Two communication ports are communicated with the liquid agent inlet through the common channel; a converging baffle is arranged in the common channel and located between the first communication port and the second communication port.

Further, in the valve mechanism for a high-pressure spray can, the switch seat further includes a body, the first channel, the first water suction port, the second channel, and the second water suction port are formed in on the body; a first opening formed on the body and located at one end of the first channel facing the third reference direction, and the first ball can enter or leave the first channel through the first opening ; A first plug cover, which can detachably close the first opening. a second opening, which is formed on the body and is located at one end of the second channel facing the first reference direction, and the second ball can enter or leave the second channel through the second opening; a second a plug cover, which can detachably close the second opening; a third opening, which is formed on the side of the body facing the second reference direction and communicated with the first communication port; a third plug cover, which is The third opening can be detachably closed, and includes a third plug guide wall, which is sandwiched with the main body to form a curved connecting channel connected between the first suction port and the first channel; a fourth opening , which is formed on the side of the body facing the second reference direction, and communicates with the second communication port; a fourth plug cover, which can detachably close the fourth opening, and includes a fourth plug cover guide The wall is sandwiched with the body to form a curved connecting channel connected between the second communication port and the common channel.

Further, in the valve mechanism for a high-pressure spray can, the switch seat further comprises a body, the first channel and the second channel are formed on the body; a reverse spray extension pipe part is formed on the main body and extending toward the second reference direction; the second water suction port is formed at the end of the backward spray extension pipe portion located in the second reference direction.

Further, in the valve mechanism for a high-pressure spray can, the switch seat further comprises a body, the first channel and the second channel are formed on the body; a positive spray extension pipe part, which is provided with on the main body, communicated with the first water suction port, and extends toward the third reference direction.

Further, for the high-pressure spray can, the valve mechanism for the high-pressure spray can further comprises a positive spray suction pipe, which is arranged on the switch seat and communicated with the first suction port, and the positive spray The rear end of the suction pipe extends to the bottom of the tank body toward the second reference direction and toward the third reference direction.

Further, for the high-pressure spray can, the switch seat further comprises a body, the first channel and the second channel are formed on the body; a positive spray extension pipe part is arranged on the body is connected to the first water suction port, and extends toward the third reference direction; the forward spray suction pipe is combined with the forward spray extension pipe portion.

Further, for the high-pressure spray can, the valve mechanism for the high-pressure spray can further comprises a reverse spray suction pipe, which is arranged on the switch seat and communicated with the second suction port, and the reverse spray The straw is L-shaped, and its tail end faces the second reference direction and extends to the top of the tank body toward the first reference direction.

Further, for the high-pressure spray can, the switch seat further comprises a body, the first channel and the second channel are formed on the body; a reverse spray extension pipe part is formed on the body and extending toward the second reference direction; the second suction port is formed at the end of the backward spray extension pipe portion located in the second reference direction; a positioning convex rib is formed on the backward spray extension pipe portion; the backward spray extension pipe portion is formed The suction pipe includes a joint end, which is combined with the extension pipe part of the reverse spray; a positioning box, which is engaged with the positioning protruding rib of the extension pipe part of the reverse spray.

The advantage of the present invention lies in that a switching seat is provided at the bottom end of the valve assembly, the switching seat further comprises two channels of a first channel and a second channel, and when the positive spray suction pipe is connected to the first water suction port and the reverse spray suction pipe is connected to the When the second water suction port is used, the forward spray suction port of the forward spray suction pipe and the reverse spray suction port of the reverse spray suction pipe can be respectively communicated with the liquid agent inlet of the valve assembly through the first channel and the second channel, and then the first beads and The second bead bodies are respectively movably disposed in the first channel and the second channel, whereby the first bead body and the second bead body can respectively control the communication or blocking of the forward spray water suction port and the reverse spray water suction port. In this way, when the liquid agent capacity in the tank is only half or less, when using in the forward spray state, the first bead body is affected by the gravitational force and slides down, thereby making the forward spray water suction port communicate with the water through the first communication port. The liquid agent inlet, and the positive spray suction port is immersed in the liquid agent A at this time, and at the same time the second bead is affected by gravity and slides down and blocks the second communication port, thereby blocking the reverse spray suction port and the liquid agent and when the top of the tank is in the direction of the ground when used in the reverse spray state, at this time, the second bead body is affected by gravity and slides down, so that the reverse spray suction port is communicated with the liquid agent inlet through the second communication port, and at this time the reverse spray The water suction port is immersed in the liquid agent A, and at the same time, the first bead body is affected by the gravitational force and slides down and blocks the first communication port, thereby blocking the positive spray water suction port and the liquid agent inlet. Therefore, whether the present invention is used in the forward spray state or in the reverse spray state, the beads can block the water suction port that is not immersed in the liquid agent, so the present invention is compared with the valve assembly or The valve mechanism can spray the liquid agent and avoid the leakage of the propellant, so as to reduce the residual liquid and avoid waste.

In addition, in the present invention, when the tank body is used in a horizontal spray state, and the liquid agent capacity in the tank is only half or less, the first inclined inner wall and the second inclined inner wall are inclined downward, so the first inclined inner wall and the second inclined inner wall are inclined downward. The bead will abut against the first inclined inner wall towards the bottom of the tank and move rapidly in the downward inclined direction, so that the positive spray suction port is connected to the liquid inlet, and at the same time, the second bead will also abut against the top of the tank. The second inclined inner wall quickly moves to the downward inclined direction, so that the reverse spray water suction port is connected to the liquid agent inlet; Because of the interlocking movement, the bodies move downward at the same time in a downward inclined direction and promote the opening of the two water suction ports, so that the two water suction ports of the forward spray and the reverse spray are both immersed in the liquid agent and can spray the liquid agent at the same time, without causing the two beads to be in the two. The fluctuating flow in the channel, which sometimes opens and sometimes closes the two suction ports, disrupts the flow of the liquid agent, resulting in intermittent spraying.

Furthermore, in the present invention, when the tank body is inclined at a small angle between the horizontal state and the horizontal state, the two water suction openings will be opened at the same time to promote the overlapping of the two pouring angle ranges; The two inclined inner walls are respectively inclined downward toward the bottom of the tank and the top of the tank, so the two beads can be linked together and move in the two downward inclined directions. When the tank is close to the horizontal state and the small angle between the horizontal state When tilted, the two ends of the tank body are tilted up and down like a balance; During the transition from the horizontal state to the horizontal spray state, the first bead still stagnates toward the bottom of the tank and abuts against the lower end of the first inclined inner wall, and the positive spray suction port is still kept open, and At the same time, when the reverse spray water suction port continues to gradually switch from the horizontal state to the horizontal spray state when the tank is in the forward spray state, the second bead moves toward the top of the tank and abuts against the lower part of the second inclined inner wall. At the low end, the reverse spray suction port is also open, so that the forward spray suction port and the reverse spray suction port are both open when the tank body continues to gradually switch from a state close to a horizontal state to a horizontal state, resulting in the forward spray and reverse spray. The two water suction ports are both immersed in the liquid agent and can spray the liquid agent at the same time, which is the overlap of the so-called two pouring angle ranges where the two water suction ports are both open, so the present invention can quickly and accurately switch the forward spraying state and the backward spraying state , and the horizontal spray state, and the key point is to ensure that the propellant does not leak during the switching of various use states and during the switching of various inclined states. This is not present in prior art valve assemblies or valve mechanisms.

The technical means adopted by the present invention to achieve the predetermined purpose of the invention are further described below with reference to the drawings and preferred embodiments of the present invention.

Please refer to FIGS. 1 and 2 , a preferred embodiment of the high-pressure spray can of the present invention includes a can body 10 , a spray head 20 , and a valve mechanism 30 . The valve mechanism 30 includes a valve assembly 31 and a switch seat 32; wherein the valve assembly 31 is sealed and fixed on a mounting tank port 12 of the tank body 10 and can communicate with the inside and outside of the tank body 10, and the switch seat 32 The top end is disposed at the bottom end of the valve assembly 31 and communicates with the valve assembly 31 . Moreover, the spray head 20 includes a horizontal nozzle 21 , and the spray head 20 is mounted on the top of the valve assembly 31 and communicates with the valve assembly 31 .

Referring to FIGS. 1 and 2 , the tank body 10 includes an inner space 11 , the aforementioned installation tank opening 12 , and a bottom wall 13 . The aforementioned tank body 10 is a hollow body and has a mounting tank opening 12 for installation; in this embodiment, the tank body 10 is preferably made of metal, and the mounting tank opening 12 is located at the top of the tank body 10; in this embodiment The bottom of the tank 10 has an arc-convex bottom wall 13 , and the bottom wall 13 is concave toward the inner space 11 of the tank 10 , whereby the tank 10 can stand upright by the periphery of the bottom wall 13 .

Please refer to FIG. 2 and FIG. 3 further, the valve mechanism 30 is disposed on the tank body 10 and can communicate the inside and outside of the tank body 10, and includes a first reference direction D1, a second reference direction D2, a third reference direction D3, The aforementioned valve assembly 31 , the aforementioned switching seat 32 , a first bead body 33 , a second bead body 34 , a positive-spray suction pipe 35 , and a reverse-spray suction pipe 36 . The first reference direction D1 is parallel to the axis of the can body 10 and faces the top end of the can body 10 . The second reference direction D2 is perpendicular to the first reference direction D1 and faces the radially outer side of the can body 10 . The third reference direction D3 is parallel to the axis of the can body 10 and faces the bottom end of the can body 10 .

Please refer to FIG. 1 , FIG. 2 , and FIG. 3 , the aforementioned valve assembly 31 has a liquid agent inlet 315 and a liquid agent outlet 316 , the liquid agent inlet 315 is located in the inner space 11 of the tank body 10 , and the liquid agent outlet 316 is located in the tank body 10 . Outside; the liquid agent inlet 315 selectively communicates with the liquid agent outlet 316 . Specifically, as shown in FIG. 1 , FIG. 2 , and FIG. 3 , the valve assembly 31 includes a valve seat 314 , a valve stem 312 and a fixed cover 311 (specifically, a metal fixed cover), and the valve seat 314 is provided at the bottom of the fixed cover 311 , the fixed cover 311 is sealed and fixed on the installation tank mouth 12 of the tank body 10, the liquid agent inlet 315 is formed at the bottom end of the valve seat 314; 3121; its bottom end is set inside the valve seat 314, the top end of the valve stem 312 penetrates and protrudes from the central hole at the bottom of the fixed cover 311, and the top end of the valve stem 312 is provided with a liquid agent outlet 316; further, The liquid agent A can communicate with the liquid agent outlet 316 through the common channel 325 of the valve assembly 31, the liquid agent inlet 315 and the horizontal hole 3121 of the valve rod 312; Ancillary products; usually the spray head 20 is installed on the liquid agent outlet 316 at the top of the valve stem 312, and the nozzle 21 of the spray head 20 and the liquid agent outlet 316 of the valve stem 312 can be communicated, so when the user presses the spray head 20, The inner hole of the valve stem sealing ring 313 will be immediately separated from the horizontal hole 3121 of the valve stem 312, then the valve assembly 31 can spray the liquid agent A in the tank when the valve assembly 31 is open; It is fixed to the same side as the forward spray suction port 322 of the slightly curved forward spray suction pipe 35 . Since the valve assembly 31 is an existing standard assembly, its detailed structure will not be further described in detail. The size of the valve assembly 31 in this embodiment is 1 inch; please refer to the components shown in FIG. 1 , that is, the conventional standard valve assembly 31 includes a valve stem 312 , a valve stem sealing ring 313 , a fixed cover 311 , and a fixed cover sealing ring 3111 , valve seat 314, a spring 3112, and a positive spray suction pipe 35 and other seven parts.

Please refer to FIG. 1 , FIG. 3 , and FIG. 9 , the aforementioned switch seat 32 includes a main body 32A, and the main body 32A further includes a first channel 321 , a first water suction port 322B, a second channel 323 , and a second water suction port 324B, a common channel 325, a confluence baffle 326, a first opening 327, a first plug cover 328, a second opening 329, a second plug cover 330, a third opening 32B, a third plug cover 32C, a fourth opening 32D, a fourth plug cover 32E, a reverse spray extension pipe portion 36A, and a forward spray extension pipe portion 35A. Among them, the aforementioned first channel 321, first water suction port 322B, second channel 323, second water suction port 324B, common channel 325, confluence partition 326, first opening 327, second opening 329, third opening 32B, The fourth opening 32D and the backward spray extension pipe portion 36A are all formed in the main body 32A, while the first plug cover 328 , the second plug cover 330 , the third plug cover 32C, the fourth plug cover 32E and the forward spray extension pipe portion 35A are connected to the main body 32A. The body 32A is a separate and independent element from each other.

Please refer to FIG. 2 , FIG. 3 , and FIG. 6 , further, the top end of the switch seat 32 is disposed at the bottom end of the valve assembly 31 and communicates with the valve assembly 31 , and the switch seat 32 includes a first channel 321 and a second channel 323, and the first horizontal line and the second horizontal line. Among them, the first horizontal line is marked in the first channel 321, and the first horizontal line is only a reference for comparing the virtual angle with the first inclined inner wall when the tank body is in a horizontal state; the second horizontal line is marked with In the second channel 323, the second horizontal line is only a reference for comparing the virtual included angle with the second inclined inner wall when the tank body is in a horizontal state in the present invention.

Referring to FIG. 2 and FIG. 3 , on the main body 32A, the first channel 321 includes a first communication port 3211 and a first inclined inner wall 3212 . The first communication port 3211 is formed at one end of the first passage 321 facing the first reference direction D1 and communicates with the liquid agent inlet 315 . The first inclined inner wall 3212 is located on one side of the first channel 321 in the second reference direction D2, the first inclined inner wall 3212 is inclined to the axis of the tank body 10, and is directed from one end of the first reference direction D1 (this is the starting point, that is, the top end direction of the tank body) to the end facing the third reference direction D3 (this is the end point, that is, the bottom end direction of the tank body), which is inclined to extend in the second reference direction D2; that is, in the figure, the first tilt The inner wall 3212 is located on the left side of the first channel 321, and is inclined to the axis of the tank body 10, and is inclined to the left from top to bottom. In other words, as shown in FIG. 6 , since the first inclined inner wall 3212 is formed on one side of the first channel 321 in the second reference direction D2, when the tank body is in a horizontal state, the first inclined inner wall 3212 is on the first side of the first channel 321. The lower edge of the horizontal line is inclined at an included angle towards the bottom of the tank. Specifically, in this example, the angle θ between the first inclined inner wall 3212 and the first reference direction D1 can be 1 degree to 3 degrees, and preferably 1.5 degrees, but in other embodiments, the angle is not the same as the above limit.

Referring to FIG. 3 , the first suction port 322B is formed at the bottom of the main body 32A and communicated with the first channel 321 , and communicated with the liquid agent inlet 315 through the first communication port 3211 of the first channel 321 .

Referring to FIG. 3 , the forward spray extension pipe portion 35A is disposed on the main body 32A, communicates with the first water suction port 322B, and extends toward the third reference direction D3. The forward spray suction pipe 35 is coupled to the forward spray extension pipe portion 35A.

Referring to FIGS. 2 and 3 , on the main body 32A, the second channel 323 includes a second communication port 3231 and a second inclined inner wall 3232 . The second communication port 3231 is formed at one end of the second passage 323 facing the third reference direction D3 and communicates with the liquid agent inlet 315 . The second inclined inner wall 3232 is located on one side of the second channel 323 in the second reference direction D2, the second inclined inner wall 3232 is inclined to the axis of the tank body 10, and is directed from one end in the third reference direction D3 (this is The starting point, that is, the bottom end direction of the tank body) to the end facing the first reference direction D1 (this is the end point, that is, the top end direction of the tank body) is inclined to extend in the second reference direction D2; that is, within the second inclination in the figure The wall 3232 is located on the left side of the second channel 323, and is inclined to the axis of the tank body 10, and is inclined to the left from bottom to top. In other words, as shown in FIG. 6 , since the second inclined inner wall 3232 is formed on one side of the second channel 323 in the second reference direction D2, when the tank body is in a horizontal state, the second inclined inner wall 3232 is on the second side of the second channel 323 in the second reference direction D2. The lower edge of the horizontal line is inclined at an angle toward the tank top. Specifically, in this example, the angle θ between the second inclined inner wall 3232 and the third reference direction D3 may be 1 degree to 3 degrees, and preferably 1.5 degrees, but in other embodiments, the angle is not the same as the above limit.

Referring to FIG. 9 , in the present embodiment, the switch seat 32 further includes a reverse spray extension pipe portion 36A directly formed on the main body 32A and extending toward the second reference direction D2 to be close to the inner wall surface of the tank body 10 . The aforementioned second water suction port 324B is formed at the end of the backward spray extension pipe portion 36A located in the second reference direction D2, that is to say, the second water suction port 324B is formed at the tail hole of the backward spray extension pipe portion 36A, and It communicates with the second channel 323 , and then communicates with the liquid agent inlet 315 through the second communication port 3231 of the second channel 323 . In addition, a positioning protruding rib 363 is formed on the backward spray extension pipe portion 36A.

Please refer to FIG. 1 , FIG. 3 , FIG. 9 and FIG. 9A , a positioning box 361 and an engaging end 362 are provided on the reverse spouting suction pipe 36 . The engagement between the positioning box 361 and the positioning protruding rib 363 of the backward spray extension pipe portion 36A is used for orientation positioning, and the engagement end 362 is connected to the second suction port 324B and the second communication port 3231 . Specifically, when the backward spray suction pipe 36 is combined with the backward spray extension pipe portion 36A, the joint end 362 is inserted into the backward spray extension pipe portion 36A, and since the joint end 362 and the backward spray extension pipe portion 36A are two The circular pipe bodies are butted together. Therefore, in order to position the L-shaped reverse spray suction pipe 36 to face upward, the positioning box 361 is designed to engage with the positioning rib 363 when the reverse spray suction pipe 36 is combined with the reverse spray extension pipe portion 36A. This achieves the effect of directional positioning.

Referring to FIG. 3 , on the main body 32A, the common channel 325 is communicated with the liquid agent inlet 315 , and the first communication port 3211 and the second communication port 3231 are communicated with the liquid agent inlet 315 through the common channel 325 . The bus divider 326 is disposed in the common channel 325 and located between the first communication port 3211 and the second communication port 3231 . The confluence baffle 326 and the common channel 325 can generate a stable confluence effect when the liquid agent A enters from the first water suction port 322B and the second water suction port 324B at the same time, so as to avoid the collision of the liquid agent A in the two flow directions to cause disturbance and affect the normal injection. , but in other embodiments, there may be no common channel 325 and bus partition 326 .

Referring to FIGS. 2 and 3 , on the main body 32A, a first opening 327 is formed at one end of the first channel 321 facing the third reference direction D3 , and the first ball 33 can enter or escape from the first opening 327 Channel 321. The first plug cover 328 can detachably close the first opening 327 , thereby supporting the first ball 33 so as not to escape from the first channel 321 . The second opening 329 is formed at one end of the second channel 323 facing the first reference direction D1 , and the second beads 34 can enter or leave the second channel 323 through the second opening 329 . The second plug cover 330 is detachably disposed on the second opening 329 , thereby supporting the second ball 34 so as not to be separated from the second channel 323 . The preferred material of the bead body is stainless steel.

Referring to FIGS. 3 and 9 , on the main body 32A, the third opening 32B is formed on the side of the main body 32A facing the second reference direction D2 and communicated with the first communication port 3211 . The third plug cover 32C can detachably close the third opening 32B, and includes a third plug cover guide wall 32C1 . When the third plug cover 32C closes the third opening 32B, the third plug guide wall 32C1 and the main body 32A can be sandwiched to form a curved connecting channel connected between the first water suction port 322B and the first channel 321 . The fourth opening 32D is formed on the side of the body 32A facing the second reference direction D2 and communicated with the second communication port 3231 . The fourth plug cover 32E can detachably close the fourth opening 32D, and includes a fourth plug cover guide wall 32E1. When the fourth plug cover 32E closes the fourth opening 32D, the fourth plug cover guide wall 32E1 and the body 32A can be sandwiched to form a curved connection channel connected between the second communication port 3231 and the common channel 325 . In other words, the third opening 32B is formed between the top of the first water suction port 322B and the first channel 321 , and the fourth opening 32D is formed between the second communication port 3231 and the common channel 325 . The third plug cover 32C and the fourth plug cover 32E are combined at intervals; the third plug cover 32C can detachably close the third opening 32B, thereby supporting the passage between the top of the first suction port 322B leading to the first passage 321 The purpose of bending and detouring; the fourth plug cover 32E can detachably close the fourth opening 32D, thereby supporting the purpose of bending and detouring of the channel between the second communication port 3231 leading to the common channel 325 .

In addition, please refer to FIG. 1 , in this embodiment, the forward spray extension pipe portion 35A and the first plug cover 328 are combined at intervals, but in other embodiments, this is not limited.

In particular, please refer to FIG. 1 , FIG. 3 and FIG. 4 , the main body 32A is one of the components constituting the switch seat 32 (as described in [0034]), so when the main body 32A has not been combined with the positive spray suction pipe 35 and the reverse spray suction pipe 36 When used, the two water suction ports on the main body 32A are respectively defined as the first water suction port 322B and the second water suction port 324B; and in actual use, that is, after the main body 32A is combined with the positive spray suction pipe 35 and the reverse spray suction pipe 36, the The opening at the rear end of the spouting suction pipe 35 is defined as the forward spraying suction port 322 , and the opening at the tail end of the L-shaped reverse spraying suction pipe 36 is defined as the reverse spraying suction opening 324 .

Referring to FIG. 3 , in the embodiment of the present invention, the first beads 33 are movably disposed in the first channel 321 and selectively connect or block the positive spray water suction port 322 and the liquid agent inlet 315 . The second beads 34 are movably disposed in the second channel 323 , and selectively connect or block the reverse spray water suction port 324 and the liquid agent inlet 315 . 4 , when the high-pressure spray can held by hand is being used for forward spraying, the first beads 33 slide down on the first plug cover 328 under the action of gravity, so that the forward spray suction port 322 of the forward spray suction pipe 35 is immersed. In the liquid agent A, it is communicated with the liquid agent inlet 315 through the first communication port 3211 , and at the same time, the second bead 34 is also gravitated and slides down and blocks the second communication port 3231 , thereby blocking the reverse spray water suction port 324 and the liquid agent inlet 315; please refer to FIG. 5, when the high-pressure spray can is used for reverse spraying, the second beads 34 slide down on the second plug cover 330 under the action of gravity, which promotes the reverse spray suction port 324 of the reverse spray suction pipe 36 It is immersed in the liquid agent A and communicated with the liquid agent inlet 315 through the second communication port 3231, and at the same time, the first bead 33 is also gravitated to slide down and block the first communication port 3211, thereby blocking the positive spray water suction port 322 and the liquid agent inlet 315; please refer to FIG. 6, when the high-pressure spray can is used for horizontal spraying, the first bead 33 is moved against the first inclined inner wall 3212 by the action of gravity and rolls downward toward the bottom of the tank, And finally stop and abut against the lower end of the first inclined inner wall 3212 , whereby the forward spray suction port 322 of the forward spray suction pipe 35 is immersed in the liquid agent A and communicated with the liquid agent inlet 315 through the first communication port 3211 , and at the same time, the second bead 34 is also moved against the second inclined inner wall 3232 by the force of gravity and rolls downward toward the top of the tank, and finally stops and abuts against the lower end of the second inclined inner wall 3232, Thereby, the reverse spray suction port 324 of the reverse spray suction pipe 36 is immersed in the liquid agent A and communicated with the liquid agent inlet 315 through the second communication port 3231 .

Referring to FIGS. 3 , 4 and 5 , in the embodiment of the present invention, on the main body 32A, the head end of the positive spray suction pipe 35 is connected to the first water suction port 322B of the main body 32A through the positive spray extension pipe portion 35A and communicated with the main body 32A. The first communication port 3211, and the bending direction of the slightly curved positive spray suction pipe 35 is fixedly arranged on the same side as the nozzle 21 of the spray head 20, and the positive spray suction port 322 of the positive spray suction pipe 35 is facing the first. The three reference directions D3 extend and are close to the corner where the tank body and the tank bottom are connected, so when used in the forward spray state, the forward spray suction port 322 of the forward spray suction pipe 35 can be immersed and positioned in the liquid agent A in the tank bottom; the present invention In this embodiment, the reverse spray suction pipe 36 is L-shaped, and the joint end 362 of the reverse spray suction pipe 36 is engaged with the reverse spray suction port 324B of the main body 32A and communicates with the second communication port 3231, and the reverse spray of the reverse spray suction pipe 36 The water suction port 324 extends to the top of the tank body 10 toward the second reference direction D2 and toward the first reference direction D1. Therefore, when used in the reverse spray state, the reverse spray suction port 324 of the reverse spray suction pipe 36 can be submerged and positioned on the tank. in Liquid A in the top. However, it is not limited to this, the forward spray suction port 322 of the forward spray suction pipe 35 can also be directed toward the third reference direction D3, and the backward spray suction port 324 of the reverse spray suction pipe 36 can also be directed not toward the top of the tank body 10 but toward the top of the tank 10 . The second reference direction D2.

More specifically, when the present invention is used, it is roughly divided into five states, which will be described below.

First, the positive spray state. Referring to FIG. 4 , when the tank body 10 is used in the forward spray state, the first beads 33 are located at the bottom end of the first channel 321 so that the forward spray suction port 322 is connected to the liquid agent inlet 315 through the first communication port 3211 , and at the same time The two balls 34 also slide down on the bottom end of the second channel 323 and block the second communication port 3231, thereby blocking the reverse spray suction port 324 and the liquid agent inlet 315, and at this time, the forward spray suction port 322 is immersed in the liquid agent A, while the reverse jet suction port 324 is exposed to propellant B. Therefore, when the spray head 20 is pressed, the liquid agent A passes through the positive spray suction port 322, the first channel 321, the first communication port 3211 and the common channel 325 in sequence and then enters the liquid agent inlet 315 to spray the liquid agent A in the tank. At this time, since the second bead 34 blocks the reverse spray suction port 324 and the liquid agent inlet 315 , even if the reverse spray suction port 324 of the reverse spray suction pipe 36 is exposed to the propellant B, the propellant B will not be released by the nozzle 21 leak out.

Second, the reverse spray state, please refer to FIG. 5 , when the tank body 10 is used in the reverse spray state, the second bead 34 is located at the bottom end of the second channel 323 so that the reverse spray suction port 324 is connected to the water through the second communication port 3231. The liquid agent inlet 315, and at the same time, the first bead 33 also slides down the bottom end of the first channel 321 and blocks the first communication port 3211, thereby blocking the positive spray water suction port 322 and the liquid agent inlet 315, and at this time, the liquid agent inlet 315 is blocked. The spray suction port 324 is immersed in the liquid agent A, and the forward spray suction port 322 is exposed to the propellant B. Therefore, when the spray head 20 is pressed, the liquid agent A sequentially passes through the reverse spray suction port 324, the second channel 323, and the propellant B. After the second communication port 3231 and the common channel 325 enter the liquid agent inlet 315, the liquid agent A in the tank can be ejected. At this time, since the first bead 33 blocks the forward spray suction port 322 and the liquid agent inlet 315 , even if the forward spray suction port 322 of the forward spray suction pipe 35 is exposed to the propellant B, the propellant B will not be released by the nozzle 21 leak out.

Third, the flat spray state. Referring to FIG. 6 , when the tank body 10 is in a horizontal spray state, since the first inclined inner wall 3212 is formed on the lower edge of the first horizontal line, and is inclined at an included angle θ of 1.5 degrees toward the tank bottom, the second inclined inner wall 3232 It is formed on the lower edge of the second horizontal line, and is inclined at an included angle θ of 1.5 degrees toward the top of the tank. Therefore, when the capacity of the liquid agent A in the tank is only half or less, when the user holds the tank 10 in a 100% horizontal spray state, the first inclined inner wall 3212 and the second inclined inner wall 3232 are used. It is inclined downward, so the first bead 33 abuts against the first inclined inner wall 3212 and rolls rapidly toward the bottom of the tank and is positioned at the lower end of the inclination, so that the positive spray suction port 322 is communicated with the liquid agent inlet 315, and At the same time, the second bead 34 will also abut against the second inclined inner wall 3232 and move rapidly toward the top of the tank and be positioned at the lower end of the inclination, so that the reverse spray suction port 324 is connected to the liquid agent inlet 315; that is, In the 100% horizontal spray state, due to the design of the first inclined inner wall 3212 and the second inclined inner wall 3232, the first bead 33 and the second bead 34 will move in a downward inclined direction at the same time due to the mutual linkage. The two inclined lower ends make both the forward spray suction port 322 and the reverse spray suction port 324 open, and the liquid agent A passes through the two channels, the two communication ports and the common channel 325 in sequence through the two suction ports and then enters the liquid agent The liquid agent A in the tank can be sprayed out from the inlet 315 at the same time. Even when the tank body 10 is used to the end, the liquid agent A and the propellant B in the tank may both be used up without any waste.

Fourth, when the can body is sprayed horizontally and the spray head 20 continues to tilt downward. Please refer to FIG. 7 , because the second inclined inner wall 3232 is formed on the lower edge of the second horizontal line, and forms an inclined angle θ of 1.5 degrees toward the top of the tank. Therefore, when the capacity of the liquid agent A in the tank is only half or less, the user holds the tank body 10 in the forward spraying state and the tank top continues to incline at a small angle toward the ground until it is close to the horizontal line at an angle of 1.5 degrees or more than 1.5 degrees. When the included angle θ is 1.5 degrees, the second inclined inner wall 3232 originally at an included angle θ of 1.5 degrees is almost parallel to the second horizontal line or the tank top is more inclined toward the ground, because the second bead 34 abuts against the second horizontal line. The inner wall 3232 is inclined so that the second bead 34 moves rapidly toward the top of the tank and is positioned at the lower end of the inclination, so that the reverse spray suction port 324 is immersed in the liquid agent A and communicated with the liquid agent inlet 315; The beads 33 have also moved toward the top of the tank and block the first communication port 3211, thereby blocking the communication between the forward spray suction port 322 and the liquid agent inlet 315; and at this time, the reverse spray suction port 324 is immersed in the liquid agent A. , and the forward spray suction port 322 is exposed to the propellant B, so when the spray head 20 is pressed, the liquid agent A passes through the reverse spray suction port 324 , the second channel 323 , the second communication port 3231 , and the common channel 325 in sequence. Entering the liquid agent inlet 315, the liquid agent A in the tank can be sprayed out. At this time, since the first bead 33 blocks the communication between the forward spray suction port 322 and the liquid agent inlet 315, even if the forward spray suction port 322 is exposed to the propellant B , the propellant B will not leak out from the nozzle 21 accordingly.

Fifth, when the tank is sprayed horizontally and the spray head 20 continues to tilt upward. Please refer to FIG. 8 , since the first inclined inner wall 3212 is formed on the lower edge of the first horizontal line, and is inclined at an included angle θ of 1.5 degrees toward the tank bottom. Therefore, when the capacity of the liquid agent A in the tank is only half or less, the user holds the tank body 10 in the inverted spray state, and the tank top continues to incline at a small angle in the opposite direction to the ground until it is close to the horizontal line and the lower edge is 1.5 degrees or less. When the included angle θ is 1.5 degrees, the first inclined inner wall 3212, which originally had an included angle θ of 1.5 degrees, is almost parallel to the first horizontal line or the tank top is more inclined to the opposite direction to the ground, because the first bead 33 abuts against the ground. Because of the first inclined inner wall 3212, the first beads 33 move rapidly toward the bottom of the tank and are positioned at the lower end of the inclination, so that the positive spray suction port 322 is immersed in the liquid agent A and communicated with the liquid agent inlet 315; and at the same time The second bead 34 has also moved toward the bottom of the tank and blocks the second communication port 3231, thereby blocking the communication between the reverse spray suction port 324 and the liquid agent inlet 315; and at this time, the forward spray suction port 322 is immersed in the liquid agent A , and the reverse spray suction port 324 is exposed to the propellant B, so when the spray head 20 is pressed, the liquid agent A sequentially passes through the forward spray suction port 322, the first channel 321, the first communication port 3211, and the common channel After entering the liquid agent inlet 315 after 325, the liquid agent A in the tank can be sprayed. At this time, since the second bead 34 blocks the communication between the reverse spray suction port 324 and the liquid agent inlet 315, even if the reverse spray suction port 324 is exposed to the propellant In B, the propellant B does not leak out from the nozzle 21 because of this.

To sum up, although there are five states according to the arrangement of the tank body 10, in fact, the movement and operation of the first bead body 33 and the second bead body 34 only have three states, that is, the first bead body 33 is opened and The water suction port 322 is sprayed and the second bead body 34 blocks the reverse spray water suction port 324. The second bead body 34 opens the backward spray water suction port 324 and at the same time the first bead body 33 blocks the forward spray water suction port 322 and the first bead body. 33 and the second bead 34 simultaneously open the forward spray suction port 322 and the reverse spray suction port 324, and these three operating states are in a state where the tank body is sprayed horizontally and the spray head 20 continues to tilt downward (as shown in Figure 7) and the tank body is horizontal When spraying and the nozzle head 20 continues to be tilted upwards (FIG. 8), when the specific angle changes rapidly, the first bead 33 and the second bead 34 are rapidly moved and positioned at the same time, so that the positive spray water suction port 322 and the inverted The water spray and suction port 324 is either immersed in the liquid agent A or blocked by the first bead 33 or the second bead 34, so the present invention can achieve the effect of quickly switching between different operating states, so that even if the user is in the When the can body 10 is moved and used dynamically, there is no need to worry about the intermittent spraying or the leakage of the propellant B, which will affect the function of the product.

The advantage of the present invention is that, please refer to FIG. 4 and FIG. 5 , two channels of the first channel 321 and the second channel 323 are provided, and the forward spray water suction port 322 and the reverse spray water suction port 324 pass through the first channel 321 and the second channel respectively. The channel 323 is communicated with the liquid agent inlet 315 of the valve assembly assembly 31, and the first bead 33 and the second bead 34 are movably disposed in the first channel 321 and the second channel 323 respectively, whereby the first bead The 33 and the second beads 34 can respectively control the communication or blocking of the forward jet water suction port 322 and the reverse jet water suction port 324 . In this way, in the forward spraying state, the first bead 33 slides down under the influence of gravity, thereby making the forward spray suction port 322 communicate with the liquid agent inlet 315, and at the same time, the second bead 34 is also under the influence of gravity and slides down to block the first bead. The two communication ports 3231 thereby block the reverse spray suction port 324 and the liquid agent inlet 315; and when the reverse spray state is in the reverse spray state, the second beads 34 slide down under the influence of gravity, thereby making the reverse spray suction port 324 communicate with the liquid agent inlet 315, At the same time, the first bead 33 is also affected by the gravitational force and slides down to block the first communication port 3211 , thereby blocking the positive spray water suction port 322 and the liquid agent inlet 315 . Therefore, whether the present invention is in the forward spray state or in the reverse spray state, the beads can block the water suction port that is not immersed in the liquid agent A. Therefore, the present invention is compared with the valve assembly or the valve assembly of the prior art. The valve mechanism can avoid the leakage of the propellant B in the forward spray state or the reverse spray state, and also allows the user to obtain smooth work in progress and avoid troubles.

In addition, please refer to FIG. 6 , when the tank is used in a horizontal spray state, the first bead 33 will abut against the first bead 33 due to the downward inclination of the first inclined inner wall 3212 and the second inclined inner wall 3232. An inclined inner wall 3212 rolls rapidly toward the bottom of the tank and is positioned at the lower end of the inclination, so that the positive spray water suction port 322 is connected to the liquid agent inlet 315, and at the same time, the second ball 34 also abuts against the second inclined inner wall 3212. The wall 3232 moves rapidly towards the top of the tank and is positioned at the lower end of the inclination, so that the reverse spray suction port 324 is communicated with the liquid agent inlet 315; The design of 3212 and the second inclined inner wall 3232, so the first bead 33 and the second bead 34 will move in the downward inclined direction at the two inclined lower ends of the two channels at the same time due to interlocking with each other, and promote the positive spray to absorb water The port 322 and the reverse jet suction port 324 are both open, so as not to cause the two beads to wander in the two channels, sometimes opening or sometimes closing the two suction ports to disrupt the flow of the liquid agent A and cause the spray to be intermittent. .

Furthermore, please refer to FIG. 6 , the first inclined inner wall 3212 is formed on the lower edge of the first horizontal line and is inclined at an included angle θ of 1.5 degrees toward the bottom of the tank. The second inclined inner wall 3232 is formed on the lower edge of the second horizontal line, and is inclined at an included angle θ of 1.5 degrees toward the top of the tank. Since the first bead body 33 and the second bead body 34 are respectively movably disposed in the first channel 321 and the second channel 323, it is difficult for the hand-held can body 10 to be used in a horizontal spray state. It is in a 100% horizontal state, and at this time, both ends of the tank body 10 are slightly tilted up and down like a balance, so the operation of the tank body 10 at this time can only be said to be close to a horizontal spray state. Further, when the spray head 20 of the tank body 10 is used for forward spraying, the spray head 20 of the tank body 10 continues to gradually incline towards the ground to the upper edge of the first horizontal line and is within the tilting range of an included angle θ of 1.5 degrees, so that the first bead body 33 can still be maintained At the same time, the second inclined inner wall 3232 and the second horizontal line, which originally formed an included angle θ of 1.5 degrees, are almost transformed into a parallel state. , so that the second bead 34 can be moved toward the lower end of the second inclined inner wall 3232 (ie, the direction of the top of the tank), so that the reverse spray suction port 324 is also in an open state; The sprinkler head 20 continues to gradually incline toward the opposite direction of the ground and is inclined to the lower edge of the second horizontal line within the inclination range of an included angle θ of 1.5 degrees, so that the second beads 34 can still remain relatively stagnant against the second inclined inner wall. At the low end, the inverted water suction port 324 is opened. At the same time, the first inclined inner wall 3212, which originally had an included angle θ of 1.5 degrees, and the first horizontal line are almost transformed into a parallel state, so that the first bead 33 can be directed toward the first bead 33. The lower end of an inclined inner wall 3212 moves (ie, in the direction of the bottom of the tank), so that the positive spray water suction port 322 is also in an open state.

More specifically, please refer to FIG. 6 , as described above, the two ends of the tank body 10 are slightly tilted up and down like a balance, so the movement of the two bead bodies forms a respective 1.5° during the above two periods of approaching the horizontal spray state. If the included angle θ is within the dumping range, the maximum overlapping range between the two can be approximately 3 degrees angle θ (1.5 degrees + 1.5 degrees). Both the forward spray water suction port 322 and the reverse spray water suction port 324 can be immersed in the liquid agent A, and the liquid agent A in the tank can be simultaneously sprayed out when the spray head 20 is pressed. Therefore, the present invention can quickly and accurately switch the forward spraying state, the reverse spraying state, and the horizontal spraying state, and the key point is to ensure that the propellant B does not leak out during the switching of various usage states and during the switching of various inclined states. This is not present in prior art valve assemblies or valve mechanisms.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those of ordinary knowledge, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above, but any content that does not depart from the technical solution of the present invention, according to the present invention. The technical essence of the invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

A: liquid B: propellant D1: The first reference direction D2: The second reference direction D3: The third reference direction θ: included angle 10: Tank 11: Internal space 12: Install the tank mouth 13: Bottom wall 20: Nozzle 21: Nozzle 30: Valve mechanism 31: Valve assembly 311: Fixed cover 3111: Fixed cover seal 3112: Spring 312: Stem 3121: Horizontal hole 313: Stem seal 314: valve seat 315: Liquid inlet 316: Liquid outlet 32: switch seat 321: first channel 3211: The first communication port 3212: First inclined inner wall 322: Positive spray suction port 322B: The first suction port 323: Second channel 3231: Second communication port 3232: Second inclined inner wall 324: Reverse spray suction port 324B: The second suction port 325: common channel 326: Bus Barrier 327: The first opening 328: First plug cover 329: Second Opening 330: Second plug cover 32A: Ontology 32B: Third opening 32C: Third plug cover 32C1: Third plug cover guide wall 32D: Fourth opening 32E: Fourth plug cover 32E1: Fourth plug cover guide wall 33: The first bead 34: The second bead 35: Positive spray straw 35A: Positive spray extension pipe 36: Inverted spray straw 36A: Inverted spray extension pipe 361: Positioning Box 362: Splice End 363: Locating lobes 911: Valve Assembly 912: switch seat 92: Straw 921: Positive spray suction port 922: Positive spray channel 923: Common channel 924: Liquid inlet 925: Liquid outlet 93: Reverse spray suction port 931: Reverse spray channel 94: beads 98: Nozzle 981: Nozzle

Figure 1 is an exploded view of the elements of the present invention. Figure 2 is a side sectional view of the present invention. FIG. 3 is a partial enlarged view of FIG. 2 of the present invention. FIG. 4 is a schematic side sectional view of the forward spray state of the present invention. FIG. 5 is a schematic side sectional view of the reverse spray state of the present invention. FIG. 6 is a schematic side sectional view of the flat spray state of the present invention. FIG. 7 is a schematic side cross-sectional view of the flat spray of the present invention with the spray head continuing to tilt downward. FIG. 8 is a schematic side cross-sectional view of the flat spray of the present invention with the spray head continuing to tilt upward. FIG. 9 is an exploded view of the switch seat of the present invention. FIG. 9A is a schematic diagram of the combination of the switch seat and the reverse-spray suction pipe of the present invention. FIG. 10 is a schematic side cross-sectional view of a high-pressure spray can of the prior art in a forward spray state. FIG. 11 is a schematic side cross-sectional view of the high-pressure spray can of the prior art in the reverse spray state. FIG. 12 is a schematic side cross-sectional view of a high-pressure spray can of the prior art in a flat spray state. FIG. 13 is a schematic side cross-sectional view of the high-pressure spray can of the prior art in a downwardly inclined state.

D1: The first reference direction

D2: The second reference direction

D3: The third reference direction

10: Tank

11: Internal space

30: Valve mechanism

31: Valve assembly

312: Stem

314: valve seat

315: Liquid inlet

32: switch seat

321: first channel

3211: The first communication port

3212: First inclined inner wall

322B: The first suction port

323: Second channel

3231: Second communication port

3232: Second inclined inner wall

324: Reverse spray suction port

324B: The second suction port

325: common channel

326: Bus Barrier

327: The first opening

328: First plug cover

329: Second Opening

330: Second plug cover

32A: Ontology

33: The first bead

34: The second bead

35: Positive spray straw

35A: Positive spray extension pipe

36: Inverted spray straw

36A: Inverted spray extension pipe

Claims (12)

A valve mechanism for a high-pressure spray can, which is arranged on a can body and can communicate with the inside and outside of the can, and the can body includes an internal space and an installation can opening that communicate with each other; the valve mechanism is used for a high-pressure spray can The valve mechanism contains a first reference direction, which is parallel to the axis of the tank and toward the top of the tank; a second reference direction, which is perpendicular to the first reference direction and faces the radial outer side of the tank; a third reference direction, which is parallel to the axis of the tank and toward the bottom end of the tank; A valve assembly, which is sealed and fixed on the installation tank mouth of the tank body, the valve assembly has a liquid agent inlet and a liquid agent outlet, the liquid agent inlet is located in the inner space of the tank body, the liquid agent The outlet is located outside the tank; the liquid agent inlet selectively communicates with the liquid agent outlet; A switch seat, which is engaged with the bottom end of the valve assembly and communicated with the valve assembly, the switch seat further includes a body, which includes a first channel, which includes a first communication port, which is formed at one end of the first channel facing the first reference direction and communicated with the liquid agent inlet; a first inclined inner wall, which is located on one side of the first channel in the second reference direction; the first inclined inner wall is inclined to the axis of the tank body, and extends from the end facing the first reference direction to the One end of the third reference direction extends obliquely toward the second reference direction; a first water suction port, which is communicated with the first channel, and is communicated with the liquid agent inlet through the first communication port of the first channel; a second channel, which includes a second communication port, which is formed at one end of the second channel facing the third reference direction and communicated with the liquid agent inlet; A second inclined inner wall, which is located on one side of the second channel in the second reference direction; the second inclined inner wall is inclined to the axis of the tank body, and extends from the end facing the third reference direction to the One end of the first reference direction extends obliquely toward the second reference direction; a second water suction port, which is communicated with the second channel, and is communicated with the liquid agent inlet through the second communication port of the second channel; a first bead, which is movably disposed in the first channel, and selectively connects or blocks the first water suction port and the liquid agent inlet; a second bead, which is movably disposed in the second channel, and selectively connects or blocks the second water suction port and the liquid agent inlet; in, When the tank is in an upright state and the first reference direction is vertically upward, the first ball slides down, whereby the first suction port communicates with the liquid inlet, and at the same time the second ball blocks the second communication a port, whereby the second bead blocks the second water suction port and the liquid agent inlet; When the tank is in an upside-down state, and the first reference direction is vertically downward, the second ball slides down so that the second suction port is connected to the liquid inlet, and at the same time, the first ball blocks the first ball a communication port, whereby the first bead blocks the first water suction port and the liquid agent inlet; When the tank is in a horizontal state and the second reference direction is vertically downward, the first ball abuts against the first inclined inner wall and stops at the lower end of the first inclined inner wall, whereby the The first water suction port is communicated with the liquid agent inlet, and at the same time the second bead is abutted against the second inclined inner wall and stagnant at the lower end of the second inclined inner wall, whereby the second water suction port is communicated with at the liquid inlet. The valve mechanism for a high-pressure spray can as claimed in claim 1, wherein, The included angle between the first inclined inner wall and the first reference direction is 1 degree to 3 degrees; The included angle between the second inclined inner wall and the third reference direction is 1 degree to 3 degrees. The valve mechanism for a high-pressure spray can as claimed in claim 2, wherein, The included angle between the first inclined inner wall and the first reference direction is 1.5 degrees; The included angle between the second inclined inner wall and the third reference direction is 1.5 degrees. The valve mechanism for a high-pressure spray can as claimed in any one of claims 1 to 3, wherein, The switch seat further includes a body, which includes a common channel, which is communicated with the liquid agent inlet, and the first communication port and the second communication port are communicated with the liquid agent inlet through the common channel; A converging baffle is arranged in the common channel and located between the first communication port and the second communication port. The valve mechanism for a high-pressure spray can as claimed in claim 4, wherein, The switch seat further includes that the first channel, the first water suction port, the second channel, and the second water suction port are formed on the main body; the main body further includes a first opening formed on the body and located at one end of the first channel facing the third reference direction, and the first ball can enter or leave the first channel through the first opening; A first plug cap that can detachably close the first opening. a second opening, which is formed on the body and is located at one end of the second channel facing the first reference direction, and the second ball can enter or leave the second channel through the second opening; a second plug cap that can detachably close the second opening; a third opening, which is formed on the side of the body facing the second reference direction and communicated with the first communication port; a third plug cap that can detachably close the third opening and includes a third plug guide wall, which is sandwiched with the main body to form a curved connecting channel connected between the first water suction port and the first channel; a fourth opening, which is formed on the side of the body facing the second reference direction and communicated with the second communication port; a fourth plug cap that can detachably close the fourth opening and includes A fourth plug guide wall is sandwiched with the body to form a curved connecting channel connected between the second communication port and the common channel. The valve mechanism for a high-pressure spray can as claimed in any one of claims 1 to 3, wherein, The switch seat further includes that the first channel and the second channel are formed on the body; the body further includes A reverse spray extension pipe portion is formed on the main body and extends toward the second reference direction; the second water suction port is formed at the end of the backward spray extension pipe portion located in the second reference direction. The valve mechanism for a high-pressure spray can as claimed in any one of claims 1 to 3, wherein, The switch seat further includes that the first channel and the second channel are formed on the body; the body further includes A forward-spray extension pipe part is arranged on the main body, communicates with the first water suction port, and extends toward the third reference direction. A high-pressure spray can, which contains a tank body, which includes an inner space and an installation tank opening which are communicated with each other; a spray head, which includes a nozzle; A valve mechanism for a high-pressure spray can according to any one of claims 1 to 7, which is arranged on the can body and can communicate with the inside and outside of the can; the first reference direction is parallel to the The shaft center; the valve assembly is sealed and fixed to the installation tank mouth and connected to the spray head, and the liquid agent outlet of the valve assembly is communicated with the nozzle of the spray head. The high-pressure spray can of claim 8, wherein, The valve mechanism for a high pressure spray can further comprises A positive spray suction pipe is installed on the switch seat and communicated with the first water suction port, and the tail end of the positive spray suction pipe extends to the bottom of the tank body toward the second reference direction and toward the third reference direction. The high-pressure spray can of claim 9, wherein, The switch seat further includes that the first channel and the second channel are formed on the body; the body further includes A forward-spray extension pipe part is arranged on the body, communicated with the first water suction port, and extends toward the third reference direction; the forward-spray suction pipe is combined with the forward-spray extension pipe part. The high-pressure spray can of claim 8, wherein, The valve mechanism for a high pressure spray can further comprises A reverse spray suction pipe, which is arranged on the switch seat and communicated with the second suction port, the backward spray suction pipe is L-shaped, and its tail end faces the second reference direction and extends toward the first reference direction to the tank top of the body. The backward-spray suction pipe further includes a joint end coupled to the backward-spray extension pipe portion; and a positioning box, which is engaged with the positioning protruding rib of the backward-spray extension pipe portion. The high-pressure spray can of claim 11, wherein, The switch seat further includes that the first channel and the second channel are formed on the body; the body further includes A reverse spray extension pipe portion is formed on the body and extends toward the second reference direction; the second water suction port is formed at the end of the backward spray extension pipe portion located in the second reference direction; the backward spray extension A positioning protruding rib is formed on the pipe part.

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