JP6019095B2 - PRESSURE STRUCTURE OF SPRAYER AND SPRAYER WITH PRESSURE STRUCTURE - Google Patents

Description

  The present invention relates to a pressure structure of a sprayer and a sprayer with this pressure structure.

  In recent years, spray cans have been used when spraying organic solvent liquids that are less viscous than water, such as thinner, acetone, hexane, xylene, trichloroethylene, benzene, benzine, gasoline, methyl ethyl ketone (also known as butanone), and dichloromethane. I came.

  However, the spray can containing the organic solvent-based liquid has a small amount of the organic solvent-based liquid stored per spray can, and the unit price of the organic solvent-based liquid to be used is high. Moreover, when disposing of the spray can, it is necessary to release the pressurized gas remaining in the spray can and properly recover the organic solvent liquid remaining in the interior. Collection operations are complicated and costly. Furthermore, the particle size of the organic solvent liquid sprayed from the spray can is relatively large, and the variation in particle size is relatively large.

  Spraying organic solvent-based liquids with a sprayer that uses a piston-cylinder assembly as a pressurized structure reduces the unit price of organic solvent-based liquids that are used as much as possible without using spray cans, and necessitates disposal of spray cans. The cost can be reduced, and the particle diameter of the sprayed organic solvent-based liquid is reduced, and the dispersion of the particle diameter is extremely reduced.

  However, when spraying an organic solvent-based liquid with a sprayer using a piston-cylinder assembly as a pressurized structure, the spraying liquid container has a relatively short time after the start of use of the sprayer. In the piston-cylinder assembly, the sealing member interposed between the outer peripheral surface of the piston and the inner peripheral surface of the cylinder is swollen by the steam due to the steam generated from the stored organic solvent-based liquid, and the piston-cylinder assembly. However, the internal space of the spraying liquid container of the sprayer cannot be sufficiently pressurized.

  An object of the present invention is to prevent swelling of a sealing member of a piston-cylinder assembly by vapor generated from an organic solvent-based liquid even when an organic solvent-based liquid is used as a spraying liquid. It is possible to maintain the original function as a sprayer for a long time from the start of spraying the system liquid, and it is easy to recover the spray liquid remaining in the spray liquid container of the sprayer from the spray liquid container Further, it is to provide a sprayer pressure structure and a sprayer with the pressure structure, which can be easily used and cleaned easily.

The purpose of the invention described above, and the spray liquid container have a inlet opening mists liquid is an organic solvent-based liquid not higher viscosity than water is stored, is attached to the inlet opening of the spray liquid container comprising a trigger structure is accompanied by nozzle structure, and a pressure structure for pressurizing the spray liquid is provided to the inlet opening is stored in said spray liquid container of the spray liquid container has The sprayer pressurization structure is:
Includes a cylinder and a piston slidably received with a sealing member in an inner hole of the cylinder, the are inserted into the inlet opening of the spray liquid container top end portion of the cylinder, the other end of the piston from the inlet opening is exposed to the outside space, the piston pushes the one end of the cylinder to compress the gas in the external space by longitudinal reciprocation of the piston in the bore of the cylinder - and cylinder assembly;
Said piston - a combination of a cylinder assembly of the The rewritable operate independently from each other are provided in series at one end of the cylinder, at least one of the valve body and the valve seat of the cup-shaped, at least one of a substantially conical shape a check valve in several in combination with the valve body and the valve seat;
It said piston - detachably mounting a sheath portion covering the outer peripheral surface of the cylinder of the cylinder assembly and said plurality of check valves, sealingly to the inlet opening of the integrally formed with the sheath portion and the spray liquid container anda mounting portion detachably mounted at the other end of the cylinder is sealed with is, compression which the sheath has exited from the check valve located on the cutting edge between the outer peripheral surface of the cylinder gas with a sheath member defining a compressed gas path leading to the site of the inner space of the spray liquid container adjacent to the mounting portion;
Wherein the plurality of check valves are connected in series detachably sealingly to each other is achieved by characterized and this.

Further, the nebulizer with the aforementioned pressure structure to achieve the aforementioned objectives is:
And the spray liquid container have a inlet opening mists liquid is an organic solvent-based liquid not higher viscosity than water is stored;
A trigger structure is accompanied by the nozzle structures attached to the inlet opening of the spray liquid container;
And a pressing structure for pressing the spray liquid stored in said spray liquid container is provided at the inlet opening of the spray liquid container;
With
The pressure structure is:
Includes a cylinder and a piston slidably received with a sealing member in an inner hole of the cylinder, the are inserted into the inlet opening of the spray liquid container top end portion of the cylinder, the other end of the piston from the inlet opening is exposed to the outside space, the piston pushes the one end of the cylinder to compress the gas in the external space by longitudinal reciprocation of the piston in the bore of the cylinder - and cylinder assembly;
Said piston - a combination of a cylinder assembly of the The rewritable operate independently from each other are provided in series at one end of the cylinder, at least one of the valve body and the valve seat of the cup-shaped, at least one of a substantially conical shape a check valve in several in combination with the valve body and the valve seat;
It said piston - detachably mounting a sheath portion covering the outer peripheral surface of the cylinder of the cylinder assembly and said plurality of check valves, sealingly to the inlet opening of the integrally formed with the sheath portion and the spray liquid container anda mounting portion detachably mounted at the other end of the cylinder is sealed with is, compression which the sheath has exited from the check valve located on the cutting edge between the outer peripheral surface of the cylinder gas with a sheath member defining a compressed gas path leading to the site of the inner space of the spray liquid container adjacent to the mounting portion;
Wherein the plurality of check valves are connected in series detachably sealingly to each other are characterized and this.

  In the pressurizing structure of the sprayer according to the invention of the present application, which is configured as described above, the cylinder of the piston-cylinder assembly of the pressurizing structure and one end of the cylinder are provided in series with each other. A plurality of check valves that operate independently are covered by the sheath portion of the sheath member, and the compressed gas emitted from the check valve located at the foremost position between the sheath portion of the sheath member and the outer peripheral surface of the cylinder By defining a compressed gas passage that leads to a portion of the internal space of the spray liquid container adjacent to the mounting portion, the spray liquid and the vapor of the spray liquid in the spray liquid container The possibility of directly touching the check valves provided in series at one end of the cylinder of the piston-cylinder assembly and operating independently of each other is almost eliminated.

  Therefore, even if the spray liquid in the spray liquid container is an organic solvent-based liquid, the spray liquid and the vapor of the spray liquid may adhere to a plurality of check valves and impair these functions. Is almost lost. As a result, it is possible to almost eliminate the possibility that the piston sealing member of the piston-cylinder assembly swells due to the spraying liquid and the vapor of the spraying liquid and the function of the piston-cylinder assembly deteriorates, and as a result, pressurization. The initial function of the structure can be kept for a long time, and the nebulizer with this pressurized structure allows the original function to be kept for a long time.

  A plurality of check valves that operate independently from each other are provided at one end of the cylinder. Even if the vapor of the spray liquid in the spray liquid container enters the compressed gas passage, This greatly reduces the possibility that the function of the piston-cylinder assembly is lowered.

  Further, since the pressurized structure is detachably attached to the inlet opening of the spray liquid container in a sealed state, the inlet structure of the spray liquid container can be removed by removing the pressurized structure from the inlet opening of the spray liquid container. It is possible to easily add a spraying liquid such as a new organic solvent-based liquid into the spraying liquid container or to recover a spraying liquid such as an unused organic solvent-based liquid from the spraying liquid container. Furthermore, repeated use and cleaning of the sprayer can be facilitated.

FIG. 1 is a longitudinal cross-sectional view of a nebulizer with a pressurized structure according to one embodiment of the present invention. FIG. 2 is another longitudinal section of the nebulizer of FIG. 1 that intersects the longitudinal section of FIG. 1 at a right angle.

  Hereinafter, a sprayer 12 with a pressurizing structure 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 attached herewith.

  The sprayer 12 has an inlet opening 14a and a spraying liquid container 14 in which the spraying liquid 16 is stored, and a trigger structure attached to the inlet opening 14a of the spraying liquid container 14 and accompanied by a nozzle structure 18. 20. The pressurizing structure 10 pressurizes the spraying liquid 16 provided in the inlet opening 14 a of the spraying liquid container 14 and stored in the spraying liquid container 14.

  The spraying liquid 16 used in the sprayer 12 is, for example, an organic solvent system having a viscosity not higher than that of water such as thinner, acetone, hexane, xylene, trichloroethylene, benzene, benzine, gasoline, methyl ethyl ketone (also known as butanone), and dichloromethane. It is liquid.

  A plurality of constituent members of the spray liquid container 14, the nozzle structure 18, the trigger structure 20, and the pressurization structure 10 are not altered by the spray liquid 16 unless otherwise specified below. It is formed by injection molding of an elastic body such as engineering plastic or synthetic rubber or metal which does not change the quality of the material.

<Nozzle structure 18 and trigger structure 20>
In this embodiment, the trigger structure 20 with the nozzle structure 18 is screwed to the outer peripheral surface of the inlet opening 14a of the spray liquid container 14 in a sealed state with a plurality of sealing members 22 in a detachable manner. Thus, a pressurizing structure mounting opening 20a is provided at a portion corresponding to the inlet opening 14a. Each of the plurality of sealing members 22 is formed in a ring shape with an elastic material that is not altered by the spraying liquid 16. In this embodiment, the elastic material of each of the plurality of sealing members 22 is hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) that is excellent in heat resistance, chemical resistance, and weather resistance.

  The trigger structure 20 includes a handle 20b that protrudes obliquely downward from the pressure structure attachment opening 20a outward in the radial direction, a trigger member 20c that is slidably coupled to the handle 20b in a vertical direction, and a trigger member It includes a valve body driving member 20d that bypasses the pressure structure mounting opening 20a from 20c and extends to the opposite side of the handle 20b.

  The nozzle structure 18 is located on the opposite side of the handle 20b through the pressure structure attachment opening 20a and protrudes on the opposite side of the handle 20b. The nozzle structure 18 includes a nozzle cylinder member 18b in which a high-pressure spray liquid passage 18a extending from the pressurizing structure mounting opening 20a toward the protruding end of the nozzle structure 18 is formed. A valve seat 18c facing the direction of the pressurizing structure mounting opening 20a is formed in the high-pressure spraying liquid passage 18a, and a valve body 18d that can contact and separate from the valve seat 18c is disposed. The valve body 18d is urged by an urging member 18e accommodated in the high-pressure spray liquid passage 18a, contacts the valve seat 18c, and closes the high-pressure spray liquid passage 18a in a sealed state. The valve body 18d is connected to the valve body drive member 20d of the trigger structure 20 via the sealing member S, and resists the biasing force of the biasing member 18e when the trigger member 20c of the trigger structure 20 is pushed downward. It is pulled by the valve body drive member 20d and leaves the valve seat 18c to open the high pressure spray liquid passage 18a. The sealing member S seals the high-pressure spraying liquid passage 18a from the valve body driving member 20d. The sealing member S is also formed in a ring shape from an elastic material that is not altered by the spraying liquid 16. In this embodiment, the elastic material of the sealing member 16 is also hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber), which has the same heat resistance, chemical resistance, and weather resistance as the sealing member 22 described above. is there.

  In this embodiment, the valve body 18d has a conical shape, and the conical surface contacts the valve seat 18c. A valve stem extends from the flat bottom surface of the conical valve body 18d toward the extension end of the valve body drive member 20d of the trigger structure 20, and the extension end of the valve stem is a high-pressure spray liquid. While being surrounded by the sealing member S in a sealed state in the proximal end portion of the passage 18a, the valve body driving member 20d is connected to the extending end portion. The urging member 18e for the valve body 18d is constituted by a metal spiral spring disposed so as to surround the valve rod of the valve body 18d. Both ends of the metal spiral spring are supported by the flat bottom surface of the valve body 18d and the sealing member S at the base end portion of the high-pressure spray liquid passage 18a to compress the metal spiral spring.

  A nozzle plate 18f having a nozzle hole is disposed at the tip of the high-pressure spraying liquid passage 18a. The nozzle plate 18f is fixed to the tip of the high-pressure spraying liquid passage 18a by a nozzle cap 18g that is detachably fixed by being screwed to the protruding end of the nozzle cylinder member 18b through a sealing member (not shown), for example. Has been. The sealing member (not shown) is made of the same material as the sealing member S in the high-pressure spraying liquid passage 18a. In the nozzle cap 18g, an atomizing liquid spray pattern forming opening 18h is formed at a position facing the nozzle hole of the nozzle plate 18f.

  By removing the nozzle cap 18g from the protruding end of the nozzle cylinder member 18b, the nozzle plate 18f can be replaced. If a plurality of nozzle caps 18g having various shapes of spray liquid spray pattern forming openings 18h are prepared in advance, a desired shape spray liquid spray pattern can be obtained when a desired shape spray liquid spray pattern is desired. A plurality of nozzle caps 18g having spraying liquid spray pattern forming openings 18h having a shape corresponding to the above can be attached to the protruding end portion of the nozzle cylinder member 18b.

  Further, when the position of the nozzle cap 18g relative to the protruding end in the longitudinal direction of the protruding end of the nozzle cylinder member 18b is moved, the diameter of the spraying liquid spray pattern ejected from the spraying liquid spray pattern forming opening 18h. The diffusion range (diffusion angle) in the direction can be adjusted to a desired level.

  In the high-pressure spraying liquid passage 18a, the high-pressure extending from the valve seat 18c and the sealing member S to the bottom of the internal space of the spraying liquid container 14 through the inlet opening 14a of the spraying liquid container 14 is provided. The proximal end portion of the spray liquid delivery tube 18i is connected in a sealed state. A filter member 18j also serving as a weight is attached to the extending end of the high-pressure spraying liquid delivery tube 18i. Since the high-pressure spraying liquid delivery tube 18i is made of a flexible engineering plastic, even if the sprayer 12 is tilted, the extended end of the high-pressure spraying liquid delivery tube 18i is supported by the filter member 18j serving also as a weight. The part can always be located at the deepest part of the spraying liquid 16 in the internal space at the bottom of the internal space of the spraying liquid container 14.

<Pressure structure 10>
The pressure structure 10 includes a cylinder 30 and a piston-cylinder assembly 34 including a piston 32 accommodated in an inner hole 30a of the cylinder 30 with a sealing member 32a so as to be slidable in the longitudinal direction. The piston-cylinder assembly 34 is inserted into the inlet opening 14a of the spray liquid container 14 with one end of the cylinder 30 at the head, and the other end of the piston 32 is exposed to the external space from the inlet opening 14a. The gas in the external space is compressed and pushed out from one end of the cylinder 30 by reciprocating sliding of the piston 32 in the longitudinal direction in the inner hole 30a. Such a configuration of the piston-cylinder assembly 34 is well known.

  In this embodiment, the sealing member 32 a of the piston 32 has a ring shape, is attached to the outer peripheral surface of the other end of the piston 32, and the inner hole 30 a of the cylinder 30 has a longitudinal length of the inner hole 30 a. Makes sliding contact in the sealed state. The elastic material of the sealing member 32a is also hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) which is excellent in heat resistance, chemical resistance and weather resistance, similar to the sealing member 22 described above. .

  In this embodiment, one end of the cylinder 30 is inserted into the inlet opening 14 a of the spray liquid container 14 through the pressurizing structure mounting opening 20 a of the trigger structure 20.

  The pressurizing structure 10 further includes a plurality of check valves 36 and 38 that are provided in series at one end of the cylinder 30 of the piston-cylinder assembly 34 and operate independently of each other. In this embodiment, the number of check valves 36 and 38 is two.

  The pressurizing structure 10 further includes a sheath portion 40a that covers the outer peripheral surface of the cylinder 30 of the piston-cylinder assembly 34 and the plurality of check valves 36, 38, and the spray liquid container 14 that is integrally formed with the sheath portion 40a. And a mounting member 40b that is detachably attached to the inlet opening 14a in a sealed state and the other end of the cylinder 30 is detachably attached in a sealed state. The sheath part 40a of the sheath member 40 is a part of the internal space of the spraying liquid container 14 adjacent to the attachment part 40b. A compressed gas passage 40c is defined. The compressed gas passage 40c has a compressed gas outlet hole (not shown) that communicates with the internal space of the spray liquid container 14 at a position adjacent to the mounting portion 40b in the sheath 40a.

  In this embodiment, the sheath member 40 is inserted into the inlet opening 14a of the spray liquid container 14 via the pressurizing structure attachment opening 20a of the trigger structure 20, and the outer peripheral surface of the attachment portion 40b is the trigger structure 20. The pressure structure mounting opening 20a is screwed together with a sealing member 40d. Thereby, the front-end | tip of the sheath member 40 is located in the vicinity of the bottom surface of the internal space of the liquid container 14 for spraying. The elastic material of the sealing member 40d is also hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) that is excellent in heat resistance, chemical resistance, and weather resistance, similar to the sealing member 22 described above.

  The other end of the outer peripheral surface of the cylinder 30 is screwed to the inner peripheral surface of the mounting portion 40b with a sealing member 40e. The elastic material of the sealing member 40e is also hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) that is excellent in heat resistance, chemical resistance, and weather resistance, similar to the sealing member 22 described above.

  The sealing member 40d between the outer peripheral surface of the mounting portion 40b and the pressurizing structure mounting opening 20a of the trigger structure 20 is such that the internal space of the spray liquid container 14 communicates with the external space through the sealing member 40d. To prevent. The sealing member 40e between the inner peripheral surface of the mounting portion 40b and the other end portion of the outer peripheral surface of the cylinder 30 prevents the compressed gas passage 40c from communicating with the external space through the space therebetween.

  A compressed gas discharge port 30 b for discharging compressed gas compressed in the piston-cylinder assembly 34 is formed at one end of the cylinder 30.

  The first check valve 36 on the one end side of the cylinder 30 includes an annular valve seat packing 36a fitted to the compressed gas discharge port 30b. In this embodiment, the valve seat packing 30a is formed of hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) which is similar to the sealing member 22 and has excellent heat resistance, chemical resistance, and weather resistance. The first check valve 36 on one end side of the cylinder 30 concentrically surrounds the valve seat packing 36a on the end surface of the one end portion of the cylinder 30 and extends away from the end surface along the longitudinal center line of the cylinder 30. An extended cylindrical first check valve holder 36b is included. In this embodiment, the first check valve holder 36 b is formed integrally with one end of the cylinder 30. In the first check valve holder 36b, a closed position that contacts the valve seat packing 36a and closes the valve seat hole of the valve seat packing 36a, and away from the valve seat packing 36a, opens the valve seat hole of the valve seat packing 36a. A cup-shaped first valve body 36c that is movable along the longitudinal center line with respect to the open position is stored. The first valve body 36c includes a valve shaft extending in a direction away from the valve seat hole of the valve seat packing 36a. The first check valve holder 36b further stores a first urging member 36d for urging the first valve body 36c from the open position toward the closed position. In this embodiment, the first urging member 36d is a metal spiral spring disposed in the first check valve housing 36b so as to surround the valve shaft of the first valve body 36c.

  The second check valve 38 on the side far from one end of the cylinder 30 is fitted concentrically with the first check valve holder 36b via the sealing member 38a on the extending end of the first check valve holder 36b. It includes a joined cylindrical second check valve holder 38b. That is, the second check valve 38 is connected to the first check valve 36 in series in a detachable manner in a sealed state. The sealing member 38a is also formed of hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) which is similar to the sealing member 22 and has excellent heat resistance, chemical resistance, and weather resistance.

  A valve seat packing 38c is fitted in an opening of the second check valve holder 38b adjacent to the first check valve holder 36b. In this embodiment, the valve seat packing 38c does not alter the organic solvent liquid stored in the internal space of the spray liquid container 14, and does not alter the organic solvent liquid. It is made of an elastic material. In the second check valve holder 38b, a closed position that contacts the valve seat packing 38c and closes the valve seat hole of the valve seat packing 38c, and away from the valve seat packing 38c, the valve seat hole of the valve seat packing 38c is opened. A second valve body 38d is stored that is movable along the longitudinal center line with respect to the open position. The second valve body 38d has a substantially conical shape, has a conical surface on the side of the valve seat packing 38c, and has a flat surface opposite to the conical surface in a direction away from the valve seat hole of the valve seat packing 38c. Including a valve shaft extending to The second check valve holder 38b further stores a second urging member 38e for urging the second valve body 38d from the open position toward the closed position. In this embodiment, the second urging member 38e is a metal spiral spring disposed in the second check valve housing 38b so as to surround the valve shaft of the second valve body 38d.

  In this embodiment, the sheath portion 40a of the sheath member 40 includes a cylinder cover 40a-1 formed integrally with the mounting portion 40b and covering the outer peripheral surface of the cylinder 30, and an extension of the cylinder cover 40a-1 on one end side of the cylinder 30. A plurality of check valves removably attached to the end portion in a sealed state, and in this embodiment, a check valve cap 40a-2 covering the first check valve 36 and the second check valve 38; It is out.

  The cylinder cover 40a-1 has a cylindrical shape, and the check valve cap 40a-2 has a bottomed cylindrical shape whose end on the side far from the cylinder cover 40a-1 is closed. The check valve cap 40a-2 holds the second check valve 38 in the inner hole with the sealing member 38a on the second check valve holder 38b facing the inlet of the inner hole. The check valve cap 40 a-2 has a first check valve holder at the inner peripheral surface of the extending end of the cylinder cover 40 a-1 and the one end of the cylinder 30 with an annular sealing member P at the open end. After being inserted into the gap between the outer peripheral surface of 36b and screwed into the outer peripheral surface of the first check valve holder 36b, the cylinder cover 40a-1 is coupled to the extended end portion. The sealing member P seals the gap between the extended end of the cylinder cover 40a-1 and the open end of the check valve cap 40a-2. In this embodiment, the sealing member P is formed of hydrogenated NBR (hydrogenated acrylonitrile-butadiene rubber) which is excellent in heat resistance, chemical resistance and weather resistance, similar to the sealing member 22.

  By connecting the open end of the check valve cap 40a-2 to the extended end of the cylinder cover 40a-1, as described above, the second end held in the inner hole of the check valve cap 40a-2 is obtained. The inlet side end of the check valve holder 38b is fitted to the extended end of the first check valve holder 36b at one end of the cylinder 30 and on the inlet side end of the second check valve holder 38b. The sealing member 38a is pressed against the extending end of the first check valve holder 36b, and the second check valve holder 38b is sealed with the first check valve holder 36b through the sealing member 38a. Removably connected in series.

  Further, the first urging member 36d of the first check valve 36 is pressed and compressed by the inlet side end portion of the second check valve holder 38b to urge the first valve body 36c to the closed position. To do. At the same time, the second biasing member 38e of the second check valve 38 is configured such that the inlet side end portion of the second check valve holder 38b is pushed by the extending end of the first check valve holder 36b. Compressed between the bottom of the inner surface of the check valve cap 40a-2 and the flat surface of the second valve body 38d, urges the second valve body 38d to the closed position.

  In this embodiment, the compressed gas passage 40c extends to the attachment portion 40b, and a safety valve 40f communicating with the compressed gas passage 40c is provided at a portion of the attachment portion 40b of the sheath member 40 exposed to the external space. The safety valve 40f is opened when the gas pressure in the compressed gas passage 40c, and thus in the internal space of the spray liquid container 14, becomes equal to or higher than a predetermined value, and lowers the gas pressure below the predetermined value. As a result, when the internal space of the spray liquid container 14 is pressurized by the pressurizing structure 10, the gas pressure in the internal space of the spray liquid container 14 rises to a predetermined value or more, and the spray liquid container 14 It can be surely eliminated from bursting.

<Operation of the nebulizer 12 with the pressurized structure 10 according to one embodiment>
The operation of the nebulizer 12 with the pressurizing structure 10 according to one embodiment of the present invention configured as described above will now be described.

  The sprayer 12 with the pressurizing structure 10 according to one embodiment of the present invention can spray neatly even when an organic solvent-based liquid is used as the spraying liquid 16.

  In order to store the spray liquid 16 in the internal space of the spray liquid container 14 of the sprayer 12, the trigger structure 20 with the nozzle structure 18 with respect to the inlet opening 14a of the spray liquid container 14 is sealed. The trigger structure 20 accompanied with the nozzle structure 18 is removed together with the sealing member 22 from the inlet opening 14a of the spray liquid container 14 by releasing the screwing. During this time, the pressure structure 10 is kept attached to the pressure structure attachment opening 20a of the trigger structure 20 in a sealed state, and therefore, the trigger structure 20 with the nozzle structure 18 is added. The pressure structure 10 is also removed from the inlet opening 14 a of the spray liquid container 14.

  A desired amount of the spraying liquid 16 can be poured into the internal space of the spraying liquid container 14 from the inlet opening 14 a of the spraying liquid container 14 thus opened.

  Thereafter, the pressurized structure 10 is inserted into the inner space of the spraying liquid container 14 from the inlet opening 14a of the spraying liquid container 14 with one end thereof at the top, and further to the inlet opening 14a of the spraying liquid container 14. The trigger structure 20 with the nozzle structure 18 is screwed together, and the gap between the inlet opening 14 a of the spray liquid container 14 and the trigger structure 20 is sealed by the sealing member 22.

  Next, when the piston 32 of the piston-cylinder assembly 34 of the pressurizing structure 10 is slid back and forth in the longitudinal direction in the inner hole 30a of the cylinder 30, the gas in the outer space in the inner hole 30a, in this embodiment, The air is compressed, and the compressed air is pushed out into the valve hole of the valve seat packing 36a of the first check valve 36 fitted in the compressed gas discharge port 30b at one end of the cylinder 30. The compressed air pushes the first valve body 36c of the first check valve 36 away from the valve hole of the valve seat packing 36a against the urging force of the first urging member 36d, and the first check valve Pass through valve 36. The compressed air that has passed through the first check valve 36 then enters the valve hole of the valve seat packing 38 c of the second check valve 38 and the second valve body of the second check valve 38. 38d is pushed away from the valve hole of the valve seat packing 38c against the urging force of the second urging member 38e, and passes through the second check valve 38. The compressed air that has passed through the second check valve 38 is a compressed gas passage defined between the sheath 40 a of the sheath member 40 of the pressurizing structure 10 and the cylinder 30 of the piston-cylinder assembly 34. The gas in the internal space of the spray liquid container 14 is guided to the portion of the internal space of the spray liquid container 14 adjacent to the mounting portion 40b of the sheath member 40 by 40c, and thus the spray liquid stored in this internal space 16, increase the pressure.

  As the pressure increases, the compressed air in the inner space of the spraying liquid container 14 travels through the compressed gas passage 40c and the second valve body 38d of the second check valve 38 to the valve hole of the valve seat packing 38c. The second check valve 38 is more strongly closed by pressing with a stronger force. Even if the compressed air in the internal space of the spray liquid container 14 travels through the compressed gas passage 40c and passes through the second check valve 38 for any reason and flows back toward the first check valve 36. As the pressure increases, the first valve body 36c of the first check valve 36 is pressed against the valve hole of the valve seat packing 36a with a stronger force to close the first check valve 36 more strongly.

  Therefore, the pressurized structure 10 with a plurality of check valves, in this embodiment the first and second check valves 36, 38, is a gas in the internal space of the spray liquid container 14, and thus the internal space. Regardless of the amount of the spraying liquid 16 in the internal space, the pressure of the spraying liquid 16 inside can always be kept high reliably. As a result, the high-pressure spray liquid 16 in the internal space of the spray liquid container 14 reaches the high-pressure spray liquid passage 18a of the nozzle structure 18 via the filter member 18j and the high-pressure spray liquid delivery tube 18i.

  Thereafter, when the trigger member 20c of the trigger structure 20 is pushed down, the valve body 18d in the nozzle structure 18 separates from the valve seat 18c against the urging force of the urging member 18e. Then, the high pressure spray liquid 16 in the high pressure spray liquid passage 18a is ejected from the nozzle hole of the nozzle plate 18f toward the spray liquid spray pattern forming opening 18h of the nozzle cap 18g, and further, the spray liquid spray pattern forming opening 18h. It sprays toward the target in external space with the spray pattern corresponding to.

  When the depression of the trigger member 20c of the trigger structure 20 is stopped, the valve body 18d in the high-pressure spray liquid passage 18a of the nozzle structure 18 is directed toward the valve seat 18c by the biasing force of the biasing member 18e, and the conical shape is formed. The valve body 18d receives the pressure of the high-pressure spray liquid 16 in the high-pressure spray liquid passage 18a on the flat bottom surface and has a conical surface on the valve seat 18c side, so that the high-pressure spray in the high-pressure spray liquid passage 18a is used. The liquid 16 can be quickly moved to the valve seat 18c and the valve hole of the valve seat 18c can be quickly closed. That is, after stopping the depression of the trigger member 20c of the trigger structure 20, the leakage of the high-pressure spray liquid 16 from the spray liquid spray pattern forming opening 18h of the nozzle cap 18g of the nozzle structure 18 can be quickly eliminated. I can do it.

  In the pressurizing structure 10 of the sprayer 12, a plurality of check valves are provided in series at one end of the cylinder 30 and the cylinder 30 of the piston-cylinder assembly 34 of the pressurizing structure 10 and operate independently of each other. In this embodiment, the first and second check valves 36 and 38 are covered by the sheath 40 a of the sheath member 40, and the sheath 40 a of the sheath member 40 is between the outer peripheral surface of the cylinder 30. A compressed gas passage 40c that guides the compressed gas from the check valve located at the foremost end, the second check valve 38 in this embodiment, to a portion of the internal space of the spray liquid container 14 adjacent to the mounting portion 40b. By defining, the spraying liquid 16 in the spraying liquid container 14 and the vapor of the spraying liquid 16 are serially connected to the cylinder 30 of the piston-cylinder assembly 34 of the pressurizing structure 10 and one end of the cylinder 30. Provided in Re plurality of check valves which operate independently of one another, in this embodiment is eliminated almost the possibility of direct contact with the first and second check valves 36, 38,.

  Therefore, even if the spraying liquid 16 in the spraying liquid container 14 is an organic solvent-based liquid, the vapor of the spraying liquid 16 and the spraying liquid 16 includes a plurality of check valves. And the second check valve 36, 38, and into the inner hole 30a of the cylinder 30 of the piston-cylinder assembly 34, almost eliminating the possibility of swelling the sealing member 32a of the piston 32. As a result, the possibility that the function of the piston-cylinder assembly 34 is lowered can be almost eliminated, and as a result, the piston-cylinder assembly 34 of the pressurizing structure 10 removes the spraying liquid 16 in the spraying liquid container 14. It is possible to pressurize at high pressure to the end over a long period of time, and the sprayer 12 with this pressurizing structure 10 neatly sprays the organic solvent-based liquid spraying liquid 16 over the long term to the end. Make it possible.

  A plurality of check valves that operate independently from each other at one end of the cylinder 30, in this embodiment, the first and second check valves 36 and 38 are also provided. Even if the vapor of the spraying liquid 16 in the spraying liquid container 14 enters, the vapor is surely prevented from entering the inner hole 30a of the cylinder 30 of the piston-cylinder assembly 34. As a result, the vapor of the spraying liquid 16 in the spraying liquid container 14 that has entered the compressed gas passage 40c reliably reaches the sealing member 32a of the piston 32 and swells the sealing member 32a. Yes. As a result, the possibility that the function of the piston-cylinder assembly 34 deteriorates can be reliably eliminated.

  Further, since the pressure structure 10 is detachably attached to the inlet opening 14a of the spray liquid container 14 together with the trigger structure 20 accompanied with the nozzle structure 18, the pressure structure 10 is attached to the nozzle structure. New organics into the spray liquid container 14 via the inlet opening 14a of the spray liquid container 14 by removal from the inlet opening 14a of the spray liquid container 14 together with the trigger structure 20 with the body 18 It is possible to easily add a spraying liquid 16 such as a solvent-based liquid, and to recover a spraying liquid 16 such as an organic solvent-based liquid left over from the spraying liquid container 14, and to use the sprayer 12 repeatedly. Cleaning can also be facilitated.

Further, the pressure structure 10 can be removed from the pressure structure attachment opening 20a of the trigger structure 20 accompanied with the nozzle structure 18, and the sheath member 40 of the pressure structure 10 is a cylinder cover 40a-1. And the check valve cap 40a-2, and then the second check valve 38 can be separated from the first check valve 36, and the piston-cylinder assembly 34 is covered with the cylinder. it is possible to detach from 40a-1, Ru can be to facilitate cleaning of the pressure structure 10. Hereinafter, the invention described in the scope of claims of the present application will be appended.
[1] A spraying liquid container having an inlet opening in which a spraying liquid is stored, a trigger structure attached to the inlet opening of the spraying liquid container and accompanied by a nozzle structure, and a spraying liquid container A pressurizing structure for a sprayer comprising: a pressurizing structure for pressurizing a spraying liquid provided in an inlet opening and stored in a spraying liquid container;
Includes a cylinder and a piston that is slidably housed in the inner hole of the cylinder with a sealing member, and is inserted into the inlet opening of the spray liquid container with one end of the cylinder at the head, and the other end of the piston is connected to the outside from the inlet opening. A piston-cylinder assembly that is exposed to the space and compresses the gas in the external space by reciprocating sliding in the longitudinal direction of the piston in the inner bore of the cylinder and pushes it out from one end of the cylinder;
A plurality of check valves provided in series at one end of the cylinder of the piston-cylinder assembly and operating independently of each other;
A sheath portion that covers the outer peripheral surface of the cylinder of the piston-cylinder assembly and the plurality of check valves, and is formed integrally with the sheath portion and is detachably attached to the inlet opening of the spray liquid container in addition to the cylinder. And an attachment part that is detachably attached to the end part in a sealed state, and for the spraying of the compressed gas emitted from a check valve located at the foremost position between the sheath part and the outer peripheral surface of the cylinder adjacent to the attachment part A sheath member defining a compressed gas passage leading to a portion of the interior space of the liquid container;
A pressurizing structure for a sprayer, comprising:
[2] A plurality of non-return check in which a sheath is detachably attached in a sealed state to a cylinder cover that is formed integrally with the mounting part and covers the outer peripheral surface of the cylinder, and an extended end of the cylinder cover on one end of the cylinder The pressure structure of the atomizer according to [1], including a check valve cap that covers the valve.
[3] The pressurizing structure for a sprayer according to [1] or [2], wherein a plurality of check valves are detachably connected in series in a sealed state.
[4] In any one of [1] to [3], the compressed gas passage extends to the attachment portion, and a safety valve communicating with the compressed gas passage is provided in a portion exposed to the external space in the attachment portion. Pressure structure of the atomizer described.
[5] a spray liquid container having an inlet opening and storing a spray liquid;
A trigger structure attached to the inlet opening of the spray liquid container and accompanied by a nozzle structure;
A pressurizing structure that pressurizes the spray liquid provided in the inlet opening of the spray liquid container and stored in the spray liquid container;
With
Pressurized structure:
Includes a cylinder and a piston that is slidably housed in the inner hole of the cylinder with a sealing member, and is inserted into the inlet opening of the spray liquid container with one end of the cylinder at the head, and the other end of the piston is connected to the outside from the inlet opening. A piston-cylinder assembly that is exposed to the space and compresses the gas in the external space by reciprocating sliding in the longitudinal direction of the piston in the inner bore of the cylinder and pushes it out from one end of the cylinder;
A plurality of check valves provided in series at one end of the cylinder of the piston-cylinder assembly and operating independently of each other;
A sheath portion that covers the outer peripheral surface of the cylinder of the piston-cylinder assembly and the plurality of check valves, and is formed integrally with the sheath portion and is detachably attached to the inlet opening of the spray liquid container in addition to the cylinder. And an attachment part that is detachably attached to the end part in a sealed state, and for the spraying of the compressed gas emitted from a check valve located at the foremost position between the sheath part and the outer peripheral surface of the cylinder adjacent to the attachment part A sheath member defining a compressed gas passage leading to a portion of the interior space of the liquid container;
A nebulizer characterized by comprising:

  DESCRIPTION OF SYMBOLS 10 ... Pressure structure, 12 ... Nebulizer, 14 ... Spray container, 14a ... Inlet opening, 16 ... Spraying liquid, 18 ... Nozzle structure, 18a ... High pressure spray liquid passage, 18b ... Nozzle cylinder member, 18c ... Valve seat, 18d ... Valve body, 18e ... Energizing member, S ... Sealing member, 18f ... Nozzle plate, 18g ... Nozzle cap, 18h ... Liquid spray pattern forming opening for spraying, 18i ... Liquid delivery tube for high pressure spraying, 18j ... Filter member, 20 ... Trigger structure, 20a ... Pressure structure attachment opening, 20b ... Handle, 20c ... Trigger member, 20d ... Valve drive member, 22 ... Sealing member, 30 ... Cylinder, 30a ... Inner hole, 30b ... compressed gas discharge port, 32 ... piston, 32a ... sealing member, 34 ... piston-cylinder assembly, 36 ... (first) check valve, 36a ... valve seat packing, 36b ... first Check valve holder, 36c ... first valve body, 36d ... first biasing member, 38 ... (second) check valve, 38a ... sealing member, 38b ... second check valve holder, 38c ... valve seat packing, 38d ... second valve element, 38e ... second urging member, 40 ... sheath member, 40a ... sheath part, 40b ... mounting part, 40c ... compressed gas passage, 40d ... sealing member, 40e ... Sealing member, 40a-1 ... cylinder cover, 40a-2 ... check valve cap, P ... sealing member, 40f ... safety valve.

Claims (4)

And the spray liquid container have a inlet opening mists liquid is an organic solvent-based liquid not higher viscosity than water is stored, with a nozzle structure be attached to the inlet opening of the spray liquid container trigger structure and pressurized structures atomizer and a, and a pressing structure for pressing the spray liquid stored in said spray liquid container is provided at the inlet opening of the spray liquid container are Is:
Includes a cylinder and a piston slidably received with a sealing member in an inner hole of the cylinder, the are inserted into the inlet opening of the spray liquid container top end portion of the cylinder, the other end of the piston from the inlet opening is exposed to the outside space, the piston pushes the one end of the cylinder to compress the gas in the external space by longitudinal reciprocation of the piston in the bore of the cylinder - and cylinder assembly;
Said piston - a combination of a cylinder assembly of the The rewritable operate independently from each other are provided in series at one end of the cylinder, at least one of the valve body and the valve seat of the cup-shaped, at least one of a substantially conical shape a check valve in several in combination with the valve body and the valve seat;
It said piston - detachably mounting a sheath portion covering the outer peripheral surface of the cylinder of the cylinder assembly and said plurality of check valves, sealingly to the inlet opening of the integrally formed with the sheath portion and the spray liquid container anda mounting portion detachably mounted at the other end of the cylinder is sealed with is, compression which the sheath has exited from the check valve located on the cutting edge between the outer peripheral surface of the cylinder gas with a sheath member defining a compressed gas path leading to the site of the inner space of the spray liquid container adjacent to the mounting portion;
Wherein the plurality of check valves are connected in series detachably sealingly mutually pressurized structure nebulizer characterized by and this. The sheath portion is a cylinder cover which is formed integrally with the attachment portion covers the outer peripheral surface of the cylinder, said plurality removably attached sealingly to the extending end portion of the cylinder cover of one end of the cylinder The pressure structure of the sprayer according to claim 1, further comprising: a check valve cap that covers the check valve. Compressed gas passage has extended to the mounting portion, according safety valve in communication with the compressed gas passage at a site exposed to the external space is provided, that to claim 1 or 2, characterized in said mounting portion Pressure structure of the atomizer. And the spray liquid container have a inlet opening mists liquid is an organic solvent-based liquid not higher viscosity than water is stored;
A trigger structure is accompanied by the nozzle structures attached to the inlet opening of the spray liquid container;
And a pressing structure for pressing the spray liquid stored in said spray liquid container is provided at the inlet opening of the spray liquid container;
With
The pressure structure is:
Includes a cylinder and a piston slidably received with a sealing member in an inner hole of the cylinder, the are inserted into the inlet opening of the spray liquid container top end portion of the cylinder, the other end of the piston from the inlet opening is exposed to the outside space, the piston pushes the one end of the cylinder to compress the gas in the external space by longitudinal reciprocation of the piston in the bore of the cylinder - and cylinder assembly;
Said piston - a combination of a cylinder assembly of the The rewritable operate independently from each other are provided in series at one end of the cylinder, at least one of the valve body and the valve seat of the cup-shaped, at least one of a substantially conical shape a check valve in several in combination with the valve body and the valve seat;
It said piston - detachably mounting a sheath portion covering the outer peripheral surface of the cylinder of the cylinder assembly and said plurality of check valves, sealingly to the inlet opening of the integrally formed with the sheath portion and the spray liquid container anda mounting portion detachably mounted at the other end of the cylinder is sealed with is, compression which the sheath has exited from the check valve located on the cutting edge between the outer peripheral surface of the cylinder gas with a sheath member defining a compressed gas path leading to the site of the inner space of the spray liquid container adjacent to the mounting portion;
Wherein the plurality of check valves are connected in series detachably sealingly mutually atomizer characterized by and this.