KR800001302Y1 - Manually operated sprayer - Google Patents

Abstract

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Description

Hand sprayer

1 is a vertical cross-sectional view of a preferred embodiment of the present invention,

2 is an enlarged cross-sectional view of a part of the present invention of FIG.

3 is a vertical cross-sectional view of another embodiment of the present invention showing a unitary, ie inlet and outlet valve,

4 is a vertical cross-sectional view of another embodiment of the present invention,

5 is a view along line 5-5 of FIG.

The present invention is directed to a nebulizer that is manually operated in a container having a certain amount of liquid.

Manually operated, triggered pumps in liquid containers have been proposed in the past, among which Tracy B. It is patented by Tyler, US Patent No. 3,061,202, filed October 30, 1962. While pumps of this type are widely used, they are relatively expensive to manufacture because of the large number of parts, expensive or very complex, and relatively expensive materials to manufacture each of these parts.

Other conventional patents complement some of the problems of US Pat. No. 3,061,202, cited above, among which Levi's. Michalev et al., U.S. Patent No. 3,749,290, filed October 31, 1973. Within this body is indicated a trigger sprayer with a deformable hollow hollow tube directed inside. These tubes are compressed by the triggering device on the viewing wall to reduce the internal volume of the tubes, resulting in liquid being drawn from the vessel and sprayed. The tubular member is coupled axially with the inlet and outlet of each of the top and bottom of the apparatus together with the inlet and outlet valves, the inlet valve being connected to the lower opening of the tubular member suitable for engaging with the part of the sprayer body to form a valve. The discharge valve is at the top. The apparatus uses a trigger to compress the sidewalls of the tubular member that opens the discharge valve and closes the inlet valve to spray liquid, and the amount of sprayed liquid in one operation of the trigger is determined by sidewall momentum or bending. Such a device is inexpensive, can hold a container, and is one embodiment of a non-aerosol sprayer.

F patented December 30, 1969. Etch. Humphreys U.S. Patent No. 3,480,663 discloses a nebulizer with an elastic pump and check valve. It consists of an elastic member having a recessed portion suitable for sealing the bond with a support surface providing a closed barrel. In addition, one or more partitions forming one or more compartments are assembled in the apparatus. The inlet and outlet are combined there with the discharge orifice. When the finger bends the outer wall of the pump, the liquid is sucked into one or more compartments, after which it is discharged by a continuous bending action.

Other forms of nebulizers are known to attract attention when it is desired to spray liquid from a container. Finger operated plunger sprayers, for example, have been used and are widely used. Many spray devices have been developed which are manufactured by manual operation with a trigger actuator.

The main object of the present invention is the structure and assembly of a pump sprayer operated by an inexpensive manual trigger of a liquid container composed of a small number of parts, which are made of inexpensive and easily usable materials, which are simple to manufacture and assemble and are cheap.

The present invention provides a flexible body connected to the space and covering the open side of the space to form a variable volume pump reservoir and a space formed in the body defining a body and a container for receiving the liquid to be sprayed open on one side. An inlet and outlet device having a deformable diaphragm of elastic material, an inlet and outlet passage of the body for transferring liquid into and out of the variable volumetric pump barrel, and a pump for spraying liquid therein through the outlet device When the trigger is manually actuated, the diaphragm deforms into space to perform the pumping action by reducing the volume of the barrel, which constitutes a manually operable liquid atomizer having an actuator with a trigger fixed to the actuated body.

Reference is made to the accompanying drawings so that the present invention may be more clearly understood.

The structure of the embodiment of the present invention shown in FIGS. 1 and 2 has a sprayer 10 of most of the elements of the thermoplastic material fixed to the container 11 by means of a base 12 or a lid 12 screwed to the neck of the container 11. The nebulizer 10 has an actuating member or trigger 14 having an extension 16 connected thereto by the element support body 13 and the plastic hinge 15. An extension 16 contacts and engages an elastic flexible diaphragm 17 at its free end, which diaphragm 17 connects the general cylinder space or barrel 20 in the body 13 between the support plate 17 and the tightening surface of the groove in space 20. It is supported in the surrounding recess. The plate 18 has several holes, including a central hole 19 through which the extension 16 can pass in engagement with the diaphragm 17 and is pressed into the recess and seals and supports the diaphragm 17 on the side of the barrel 20. As best seen in FIG. 2, the upper wall 23 of the barrel 20 forms part of the outlet valve 21 consisting of the valve seat 22, which is the end of the wall 23 over the groove 22-a and the upper 24 of the diaphragm 17. It is part of the surface.

An inlet passage 25 extends from the inlet valve 26 and connects the inside of the vessel 11 with the canister 20 through the liquid supply line 27. An inlet valve 26 is formed in the tube support or insert 38 in the body 13. The outlet passage 28 connects the canister 20 through the outlet valve 21 to the outlet nozzle 29 to spray the liquid.

Trigger 14 is pivotally supported above body 13 by pin 30 to use the flexible actuation of diaphragm 17.

The atomizer 10 mentioned above is attached to the container 11 by means of a base or a lid 12 and a device for evacuation of the container 11 is installed so that the pressure balance therein is ensured. The evacuation device has a thin, annular flexible washer-like membrane or ring seal 31 secured over the top of the container 11 by the lid 12 below the flange 32-a of the insert 38. The ring seal 31 has a central hole and seals contact with the tubular support 38 inserted into the lower end of the body 13 or the circular outer surface 32 of the insert, and is bent down when the air pressure is higher than the lower pressure. In other words, if negative pressure occurs in the vessel 11 due to the absorption of the liquid, the ring seal 31 is deformed to bend downward and separate from the surface 32. Air from the outside flows through the exhaust passage 32-c provided between the lid 12 and the body 13 and is drawn into the barrel 20 through the slot in the flange 32-a between the center hole of the ring seal 31 and the surface 32. Flow into container 11, replacing liquid.

In FIG. 2 mentioned above, the outlet valve 21 is shown in an enlarged size, and in an open or liquid discharge condition, the diaphragm portion 24 of the flexible diaphragm 17 allows liquid in the pail 20 to pass into the passage 28. Separate from valve seat 22 to open valve 21. When the diaphragm 17 is bent by the operation of the trigger extension 16, ie when the trigger extension generates liquid pressure in the barrel 20, the valve portion 24 of the diaphragm 17 is separated from the valve seat 22. A liquid flow connection is thus established between the outlet passage 28 and the interior of the barrel 20 so that the liquid is discharged from the nozzle 29.

Referring to FIG. 3, another embodiment of the present invention is shown having a nebulizer 110 with a pump diaphragm 117 in the body 113. A barrel 120 having a cylinder wall 123 is formed in the body 113. An inlet passage 125 is connected to the canister 120 via a synthetic, movable valve element portion 33 by an inlet passage 34 therein and an outlet passage 128 is connected to the canister 120 by an outlet passage 35 in the element portion 33. The valve element 33 is slidably movable between the two positions in the valve hole 36 in the body 113 and thereby by a circumferential lip or support ring 37 in the hole 36 near the inlet of the cylinder 120 by means of a compression spring 51 therein. Supported. In the normal position, the valve element 33 is in contact with the ring 37 and the inlet passage 34 therein is arranged in line with the inlet passage 125, the diaphragm 117 is not bent, and the outlet passage 35 is closed in the outlet passage 128.

To more fully describe the operation of the present invention, the discharge passage 35 has a larger cross-sectional area than the passage 34, the valve element portion 33 is able to slide in the hole 36 between the two position portions, and the pressure in the cylinder 120 causes the diaphragm 117 If it is increased by bending, it is pushed to the right.

The nebulizer 110 is installed on the vessel 11 by a spiral cap 12, as in the previous embodiment, and its exhaust is installed by a perforated ring seal 31, as previously described. In this case, however, insert 138 is used with a vertically extending tube support 39 having a circular sealing surface 40 at its end. The radially extending flange 41 over the inlet 138 has an exhaust passage 42 which allows air to flow into the vessel 11 when the ring 31 is bent downward from the surface 40 in the connection of a similar passage 42-a of the lid 12.

In FIG. 4 another embodiment of the present invention is shown wherein the diaphragm 217 is supported by the body 213 of the nebulizer 210 covering the opening of the inner cylinder 220. Inlet passage 225 is guided from inlet valve 226, which is a check ball similar to valve 26 in FIG. The exhaust of the container 11 is re-installed by the washer-type perforated ring seal 31, which is closed by the flange 238-a on the suction insert 238 which is pressurized by inserting it into the groove 43 in the body 213. It is transported over the top of the container 11 which is fixed above. Insertion 238 holds the fluid seal generated by the teeth or ribs 44 against the inner surface 238-b of groove 43. The slot 45 in the body 213 and the passage 45 in the insert 238 arranged above the ring seal 31 act to bend downward from the sealing surface 48-a on the tube support 48 of the insert 238 when a negative pressure occurs in the container 11. Air flows into the annular barrel 47.

A movable discharge valve or spin element portion 49 is installed in the trunk 213 in the nozzle barrel 53 which is slidably movable between two positions between the inlet of the discharge nozzle 229 above the trunk 213 and the end of the discharge passage 228. When the valve 49 is opened at a position adjacent to the inlet of the nozzle 229 in FIG. 4, the valve 49 is closed at an opposite position adjacent to the end of the discharge passage 228, and operated by the trigger 214 through the extension 216, As shown, the diaphragm 217 is moved to a position corresponding to the bending and not bending. The bent and unbend of the diaphragm 217, i.e., pumping, opens and closes the inlet valve 226, and its upward movement is limited by the protrusion 50 of the body 213 extending downward from the position above the valve 226.

In FIG. 5, the valve or spin element portion 49 is formed with an outer protrusion or shoulder 56 that slides in contact with the inner wall of the vessel 53 and engages it to provide a liquid passage 54. Liquid passage 54 ends in radial passage 55 connected to nozzle 229 for liquid discharge.

In operation of the preferred embodiment of the present invention, the nebulizer 10 of FIG. 1 is installed on the vessel 11 by screwing the lid 12 onto the helixed neck of the vessel 11 and tightening the perforated ring seal 31 therebetween. A nebulizer 10 assembled with a container 11 extending downward to operate the nebulizer is held in the hand, the lid 12 is in the palm of the hand, and the finger is held by the trigger 14. When trigger 14 acts in a squeeze operation, this action causes the diaphragm to bend inward to reduce the volume of the barrel in which trigger extension 16 to diaphragm 17 extends. At the same time, as shown in FIG. 2, the valve 21 in the upper end of the keg 20 is opened by bending the diaphragm 17 and its valve opening 24, and the fluid flows through the discharge passage 28 and drops the valve opening from the sheet 22 discharged from the nozzle 29. Drop. Fluid pressure occurs in the canister 20 and is caused by the pump diaphragm 17 bending the ball 26 of the valve to the valve seat 26-a. When the pressing force on trigger 14 is released, trigger 14 is moved to its normal position, turning over pin 30, shifting to resistance to elasticity or deformation of diaphragm 17, and the properties of diaphragm 17 and the elastic material that produced it are returned to their original state. come. The return of diaphragm 17 expands barrel 20 into a slight vacuum and the inlet valve 26 opens. At the same time, the valve opening 24 of the diaphragm 17 is put back on the sheet 22 and the valve 21 is closed, and the liquid is sucked into the barrel 20 from the container 11 through the supply pipe 27, the open inlet valve 26 and the passage 25. Continuous operation of trigger 14 reduces the volume of canister 20, closes valve 26, opens valve 21, and causes liquid to flow into outlet 28 and spray through nozzle 29.

In the operation of the embodiment of FIG. 3, the actuation of trigger 114 causes the diaphragm 117 to bend into the keg 120 reducing its volume. Pushing the composite valve element portion 33 movable back into the hole 36 compressing the spring 51 until the fluid pressure in the cylinder 120 rises and reaches the position shown by the dashed line in FIG. The composite valve element 33 is moved backwards because the inlet passage 34 is too small in cross-section than the outlet passage 35, and as soon as pressure is established in the canister 120, no liquid is sent back toward the inlet passage 125, so that the force develops. It acts on the element part 33 which moves it backward against the spring 51.

In this position, an internal discharge passage 35 is arranged along with the discharge passage 128 and liquid flows from the passage 120 into the passage 128 and is discharged from the nozzle 29 as in the previously described embodiment of FIG. It exits in a straight line with the entry passage 125 in the hole 36 to prevent flow.

Once the operating pressure above trigger 114 is removed, diaphragm 117 returns to its original shape due to its elasticity and pushes trigger 114 to the original position shown in the solid line of FIG. The dashed line of FIG. 3 shows the location of the various components when trigger 114 is operated to pump liquid from sprayer 110. FIG. 3 also shows a two function valve arrangement, one movable element portion 33 which acts as an inlet and outlet valve.

The operation of the embodiment of FIG. 4 in which another valve arrangement is shown will be described. In the nebulizer 210, the diaphragm 217 is bent by the trigger 214 as indicated by the dashed line, as in the embodiment described above. At the same time, the barrel 220 into which the diaphragm 217 is bent is pressed, and its volume decreases. The inlet valve 226 closes to prevent the flow of fluid back into the vessel 11, while at the same time the fluid under pressure in the tub 220 flows into the outlet passage 228 and the shoulder 56 in the nozzle vessel 53 until it contacts the inlet of the nozzle 229. Move unit 49 downward. The liquid then enters passage 54, radial passage 55 through passage 52 at the end of passage 228 and exits through nozzle 229. When the pressure on trigger 214 is released, diaphragm 217 returns to its original shape due to its elasticity and causes trigger 214 to return to its original initial position. If diaphragm 217 is intact, i.e. under uncompressed condition, the volume of barrel 220 increases and a slight vacuum is generated therein. As a result, the inlet valve 226 opens without seating, and the discharge valve 49 returns to the position close to the discharge end of the discharge passage 228, thereby closing the passage 52 and drawing the liquid from the vessel 11 through the dip tube 27 into the vessel 220. Lose.

Thus, what has been described as an improvement of the triggered atomizer and the like is the elastically deformable diaphragm that stretches and similarly covers the atomizer pump barrel. The diaphragm is bent by the trigger operator to reduce the volume of the pump pail and liquid is pumped out of the sprayer. Diaphragms are made of natural and synthetic rubbers, such as natural and synthetic rubbers, polyolefins, polyurethane PVC, and other well known thermoplastic materials with the resilience required.

The device is also provided to ensure that the liquid supply vessel is adequately vented and prevented from leaking of liquid therein. As shown, for example, in FIGS. 1, 3 and 4, in each embodiment of the present invention, when the flexible ring seal 31 is pressed from the container side, it moves and bends outward with respect to each circular sealing surface. , Thus preventing the leakage of liquid from the container. The trigger action causes the tensile stress on the diaphragm to be applied and removed alternately. The present invention uses an elastic material that is preferably of a high degree of elasticity for carrying out the present invention because of its elasticity which allows it to regain its original form after the stress has been removed. Therefore, it is believed that the present invention is an important improvement of the nebulizer in the form of an efficient and useful device that is simple in structure, low in parts, and easy to operate at low cost and easily.

Claims (1)

One or more check valves for regulating the flow of liquid, usually from a non-pumped position to a pumped position, with passages 125 and 128 for transferring liquid to the immersion tube and variable volume pump cylinder 120 supported from the element support body 113 In known atomizers of the type having a variable volume with an actuator 114, 116 for converting and for changing the volume of the pump bottle and an outlet orifice 129 connected to the discharge passage 128 for spraying the liquid pumped by the pump, The pump cylinder 120 is formed by the space located in the element support body 113 and the diaphragm 117, so that the operating device 114, 116 compresses the diaphragm 117 when it is converted from the non-positive position to the positive position. Hand sprayer.