KR800001301Y1 - Manually operated sprayer - Google Patents

Abstract

No content.

Description

Hand sprayer

1 is a cross-sectional view of a nebulizer according to one embodiment of the present invention prior to trigger manual operation.

2 is a view similar to the first diagram after pressure is applied to the pump member by the operation of the trigger.

3 is an enlarged cross-sectional view of the combined valve of FIGS. 1 and 2.

4 is a cross-sectional view of a portion of another embodiment of the present invention.

The present invention relates to a nebulizer manually operated in a container with a liquid.

Manual pump-operated discharge pumps for liquid containers have been proposed in the past, and a single application for a wide range of commercially available discharge pumps has been published in US Pat. No. 3,061,202. However, this type of pump is generally a lot of parts, and it is relatively expensive to build and assemble it.

Another conventional patent was granted in the direction of overcoming expensive manufacturing problems in the above-mentioned U.S. Patent Nos. 3,061,202, especially 3,749,290. This patent refers to a trigger sprayer having an internally deformable tubular member that is pressurized on its side by a triggering device to reduce its volume and drain liquid entering it from the container. The hollow tubular member combines in line, open bottom inlet and open top outlet with inlet and outlet valves, the inlet valve being at the open bottom, and the outlet valve of the inner surface of the sprayer body connected to form a valve mechanism. It is in the concentric rim on the member joining the part.

This device utilizes a trigger device in which the suction valve is sealed and the discharge valve bends the side wall of the tubular member which is opened for discharging the liquid. The amount of liquid discharged by triggering once is largely determined by the degree of flexibility of the sidewalls, which coincides with the space available for its displacement. This device is an example of a manual nebulizer, which is relatively inexpensive and requires less money.

Another conventional liquid discharge device is US Pat. No. 3,575,318, approved by Mr. Oh Couns on April 20, 1971, which represents a toy water pistol.

In this patent, a removable cartridge containing liquid is inserted into the body of the pistol which is in contact with the trigger for actuating the plunger. When the trigger is activated, the plunger compresses the cardlitch so that the liquid contained therein is ejected through a limited nozzle on the cardlitch opposite the plunger. Once all the liquid has been ejected, remove the card latch, reinsert the liquid from the faucet, and insert it back into the pistol.

Another conventional patent is this. Approved by Mr. Benko on February 27, 1962, for a double-gun gun with a flexible water container in the gun's butt chamber, the liquid inside the container expands the container and ejects the liquid through the nozzle. It is ejected by the trigger action. The device also shows that missile ammunition in the nozzle is fired from the gun by the pressure of the liquid in the container. As shown in this patent, in two adjustments, the container is prefilled from the supply and inserted into the gun before operation. The return spring is added so that the trigger device ejects the liquid and returns to position after insertion of the refilled cardrich or container.

Another type of nebulizer is well known in the art and is used to require spraying liquid from a container. For example, a well-known plunger sprayer by the operation of a finger or the like is well known and widely used. The technology has evolved with many manual nebulizers proposed and manufactured.

The main object of the present invention is to provide a structure and assembly of a low cost, manually triggered sprayer having a single-actuated pump vessel, which is composed of relatively few parts, each of which is manufactured And are very simple, inexpensive, and readily available in assembly.

Another object is to provide an apparatus of this type in which a liquid is discharged from a vessel holding a supply of liquid, a device is installed on the vessel, and an infusion or discharge valve is integrally combined with a single pump vessel.

Another object is that each part is inexpensive polyolefin; It is to provide a device in the form of a synthetic material, such as polyurethane, PVC, natural and synthetic rubber and similar materials, and a thermoplastic material of elasticity.

It is a further object of the present invention to provide a device of the above-mentioned manual nebulizer of the above type in which a single pump container has a double capability in one part and is combined to perform the functions of a piston, a liquid container, a return spring and a valve.

Hereinafter will be described in detail with reference to the drawings.

1 to 3, the present invention consists of a nebulizer 10 which is spirally fastened to the container 11 by a lid 12 screwed onto the neck of the container 11. The nebulizer 10 is composed of an actuating member or trigger 14 having an extension 16 connected by a single element retaining body 13, a plastic hinge 15, and the like.

The space 19 in the body 13 accommodates one hollow, resilient and collapsible pump container 20 formed as a resilient and compressible corrugated container as shown. The pump vessel 20 has a flexible wall or corrugated wall 21 surrounding the variable volumetric pump chamber 22 and is supported by an extension 16 in the recessed platform or plunger 23. It is. The barrel 22 has a closed lower end 22-a and an open upper end 22-b that terminates within the radially extending end 29 of the vessel 20. The radially elongated end 29 seals and accommodates the tapered protrusion 24 into the interior of the body 13 on the sealing surface of the discharge check valve 25 or on the valve seat 25-a. The elongated end 29 has an integral rib or lip with a movable valve member 26, which movable valve member 25 forms a discharge valve 25. are combined to work with -a). In FIG. 3, the discharge valve 25 is shown open or in the liquid discharge position. And as indicated by the arrow, the liquid flows there, and when the pump vessel 20 is compressed and folded by folding the flexible corrugated wall 21, the elongated end 29 opens the outlet valve 25. Inflate the valve member 26 slightly from the sheet 25-a to open.

The tapered trunk projection 24 has a central passage formed to end at the suction opening 27 in the open upper portion 22-b of the barrel 22. A check ball 28-a and an inlet valve sheet 28-b are formed in the inlet port 27 above the inlet port 27 radially held by an annular rib or land 27-a. There is an inlet valve 28.

The inflow passage 17 is connected to the liquid suction portion or the immersion pipe which is supported into the container 11 through the valve 28 and held in the body or the base insertion portion 38.

The collapsible vessel pump or compressible corrugation tube 20 is secured by a press in the space 19 that engages with any annular collar or clamp ring 31 thereon and into a cylindrical support sleeve 30. It is supported by the body 13 in the circumferential groove or groove 29-a. The clamp ring 31 is also used to prevent leakage of the outside of the space 19 around the corrugation wall when the corrugation wall is compressed to drain the liquid into the space surrounding the valve 25.

The discharge passage 32 is connected to the upper portion 22-b opened through the discharge valve 25 to receive the liquid pumped from the corrugated barrel 20, and a spray nozzle for ejecting or spraying the liquid as necessary Guide the liquid to (33).

The sprayer 10 is also provided with a venting device for the container 11 so that the pressure equilibrium is maintained, and this venting device is provided with a flange 38 of the body or the base insert 38 and of the container 11. A generally conical resilient washer vent or ring seal 39 is removably secured in the lid 12 between the tops.

Aperture washers 39, which can be made of elastic materials such as natural or artificial rubber, polyethylene, polypropylene or any other material that can maintain their general shape and elasticity, prevent the liquid from leaking from the bottom while spraying Of the tube holder or support member 36 of the base insert 38, which is associated with a check valve that allows air to flow into the vessel 11 from the top to be replaced with a liquid that is to be pressure balanced. It has a small central hole to the outside. In operation, air enters the vessel 12 through the passage 40 over the ring seal or washer vent 39 through a slot 41 at the top of the lid 12 and into the vent 39 ) Is bent away from the surface of the support member 36 so as to enter the container 11 is replaced with the liquid in which the outside air is sucked. On the other hand, the liquid in the container 11 does not leak because the pressure of the liquid on the container side of the washer vent 39 makes it more tightly tight around the support member 36.

4 shows the atomizer 110 having an element portion for holding the body 113 and the trigger 114 has an extension 116 connected thereto by a plastic hinge 115. The space 119 in the body 113 has a corrugated wall 121 surrounding the corrugated container 12 or the pump chamber 122 having a single pump or a flexible wall.

The groove 122 has a closed bottom end and a substantial portion open, and is supported on the platform 123. The pump or corrugated container 120 has an open top flare end 129 and ends in an expandable flexible flange or collar 43. The flange 43 is engaged with the groove 44 in the body 113 formed by the tapered protrusion 124. The tapered protrusion 124 expands into the flare end 129 and acts with the valve member 126 of the end 129 such that a portion of its outer peripheral surface 125-a constitutes the discharge check valve 125. Provide a sheet to be made.

The tapered portion 124 has a central passage terminating in the inlet 127 of the inlet facing the inner cylinder 122. An inlet valve 128 is supported in the central passage of the projection between the ribs or lands 127-a at the inlet facing the keg 122 and includes a check ball 128-a and a valve seat 128-a. b) The angled inlet passage 117 connects the tub 122 to the support immersion tube 118 and a container of liquid (not shown) as described above in FIG.

The corrugation tube 120 is connected to the body 113 in the groove or groove 129 in the space 119 by a creep or snap ring 130 that engages the peripheral radially extending clamping ring 131 on the corrugation pump 120. And the device prevents leakage of liquid outside of the space 119 around the corrugation container.

A discharge passage 132 for guiding liquid from the inner chamber 122 extends from the discharge valve to a nozzle (not shown).

In operation of the first embodiment, the nebulizer 10 spirally couples the lid 12 to the neck of the container 11 so that the user attached to the container 11 holds the nebulizer 10 assembled in the hand, The finger grasps the trigger 14, the palm 12 has a lid 12, and the container 11 extends under the hand. The trigger 14 is driven by a crimping operation that forces the trigger extension 16 and the recessed platform 23 on the hinge 15 to the bottom 22-a of the corrugated pump 20. Compression force acts.

The corrugated pump 20 is then compressed by folding the flexible corrugated wall 21 as shown in FIG. As the corrugated container pump is compressed, the barrel 22 is reduced in volume and pressure is generated. Initially, only air is in the barrel 22 and the increase in pressure presses the valve 28-a against an inlet check against the sheet 28-b which locks the valve 28. At the same time, the discharge valve 25 is opened by the air pressure that the flare end 29 expands until the valve member 26 and the valve seat 25-a are no longer in contact. At this time, the air in the barrel 22 passes through the open valve 25 into the discharge passage 32 and is sprayed through the nozzle 33. When the trigger 14 is released, the "elasticity" of the corrugation wall 21, which is the elasticity and flexibility of the corrugation tube 20, returns the corrugation wall to its original uncompressed state and simultaneously releases the trigger 14. It is returned to its original state as shown in FIG. 1 and pivoted on the pin connector 21-a of the body 13.

This feedback generates a partial vacuum caused by the canister 22 to seal the discharge valve 25 and open the inlet valve 28, thus immersing tube 18, passage 17, open inlet. Liquid is sucked from the container 11 into the barrel 22 through the valve 28 and the inlet 27.

The continuous compression of the next trigger 14 causes the liquid in the barrel 22 to be pressurized by the compressive force and pressurizes the pull check ball 28-a against the sheet 28-b. Fold, close the inlet valve 28, and as described above, the flare end 29 of the corrugated container 20 is bent to open the outlet valve 25, and the liquid is discharged to the outlet passage 32. It flows into and is sprayed from the nozzle 33.

During the pumping and spraying operation of the sprayer 10 as described above, the height of the liquid in the container 11 is lowered when the liquid is sprayed. This will cause partial vacuum to occur in the container 11 until there is a discharge.

In the present invention, the discharge is made by an elastic vent hole washer or ring seal 39. The atmospheric pressure acting on the vent washer 39 causes it to bend downward away from the support 36. Air enters the container through the opening between the support 36 and the vent washer 39 through the passage 40 around the top of the spiral lid 12 and the spiral container 11.

If no discharge is provided, the container 11 tends to fold and thus pumping efficiency will be enjoyed. The vent washer also has some liquid from the container 11 acting on the lower side of the washer 39 and applying it to the support 36 to tightly seal the container 11 against leakage.

In order to operate the sprayer 10 of FIG. 4, the trigger 114 is moved to the right, and the elastic corrugated barrel 120 presses the check ball 128-a onto the sheet 128-a to allow the valve 128 to operate. ) Is sealed and compressed for the first time.

The trapped air in the canister 22 increases the pressure to open the discharge valve 125 by expanding the flange 43 radially and separating the valve member 126 from the sheet surface 125.

When the trigger 114 is released, the corrugated container 120 is elongated to its original fully elongated structure according to the elasticity of the original state. This elongation creates suction or partial vacuum in the keg 122 that seats the valve member 126 back to the surface 125-a sealing the outlet valve 125. At the same time, the inlet valve 128 is opened so that the liquid enters the barrel 122 from the vessel 11 through the immersion tube 118 and the inlet passage 117.

By the operation of the next trigger 114, the compression stroke of the corrugated container 120 seals the valve 128, extends the flange 43 to open the valve 125, and the liquid in the cylinder 122 is sprayed. It flows into the discharge passage 132 to be sprayed from the (110).

So far, the embodiment has been shown as a more advanced refinement of a liquid atomizer with a flexible container pump device and valve, in the form of a corrugated pump.

This atomizer is one in which the pump consists of a thermoplastic elastic material and casting resin especially. Corrugated pumps with stretchable walls are refolded and not resilient and have the operation of pistons, fluid bottles, return springs and valves in one piece.

The corrugated pump can be fabricated as a thermoplastic elastomeric material by any known procedure (especially well known blow casting) as described above. By doing so, the corrugated pump can remove the springs required to return the trigger. The corrugating member is folded when compressed from the closed lower end and then returned to its original state when the stress is removed by the plastic elasticity. Suitable known plastic materials are used, usually polyolefins, in particular polyethylene. A family of thermoplastic rubbers known under the trademark TPR, registered in the United States Patent Office available for the technology.

It is not limited to polypropylene, polyurethane, polyester elastomer, PVC and natural and resin rubber.

In some cases, the pump member is a metal or a metal combined with plastic, and the combination of such materials is contemplated for use in the present invention. Combinations with other materials will be made by skilled craftsmen to carry out the present invention.

Claims (1)

It has inlet and outlet check valves 28 and 25 for regulating the flow of liquid in the inlet and outlet passages 17 and 32 for delivering liquid into and out of the expandable pump chamber with the expandable pump chamber 22. An actuator (14, 16) for changing and converting the pump from the non-pumped position to the pumped position and a discharge nozzle (16) connected to the discharge valve (25) through the discharge passage (32) for dispersing liquid pumped from the pump chamber ( 33. A known nebulizer having a 33), comprising a hand-held nebulizer pump 20 fixed in a space 19 located in a urea holding body 13 for receiving a support 30. .