CN219846285U - Dispenser - Google Patents

Abstract

The utility model discloses a distributor, which comprises a shell, wherein a container is arranged in the shell, the container comprises a pump, a first check valve, a second check valve and an outlet, the pump comprises a pump inlet and a pump outlet, the pump inlet is communicated with the container, the pump outlet is communicated with the first check valve through a first pipeline, the first check valve is communicated with the second check valve through a second pipeline, and the second check valve is communicated with the outlet through a third pipeline. The utility model can effectively prevent liquid from continuing to leak from the container outlet after the dispenser is used by providing the first check valve and the second check valve between the pump outlet and the container outlet.

Description

Dispenser

Technical Field

The disclosure relates to the technical field of cleaning, in particular to a distributor.

Background

Dispensers such as soap, sanitizer, and emulsion dispensers provide a user with a selected amount of liquid upon actuation of the dispenser. Dispenser systems typically use a pump to pump liquid from a container into a user's hand, but are prone to leakage after the user has used the dispenser

Disclosure of Invention

The present utility model is directed to a dispenser that solves the above-mentioned problems.

In order to achieve the above object, the present utility model is specifically as follows:

an embodiment of the present utility model provides a dispenser including: a housing; the container, it set up in the casing, the container includes pump, first check valve, second check valve and export, the pump includes pump entry and pump export, the pump entry with the container intercommunication, the pump with first check valve passes through first pipeline intercommunication, first check valve with second check valve passes through the second pipeline intercommunication, the second check valve with the export passes through the third pipeline intercommunication.

In one embodiment, the dispenser further comprises a brake disposed within the housing, the brake for activating the pump.

In one embodiment, the pump further comprises a pump chamber, and the volume of the second conduit is greater than the volume of the pump chamber.

In one embodiment, the volume of the pumping chamber is between about 0.2 milliliters and about 0.5 milliliters.

In one embodiment, the pump, the first check valve and the second check valve are arranged up and down.

In one embodiment, the first check valve is a normally closed valve.

In one embodiment, the first check valve has a cracking pressure between about 0 megapascals and about 3.5 kilopascals.

In one embodiment, the second check valve is a normally closed valve.

In one embodiment, the second check valve has a cracking pressure of between about 3.5 megapascals and about 10 kilopascals.

In one embodiment, the opening pressure of the second check valve is greater than the opening pressure of the first check valve.

By adopting the technical scheme of the utility model, the utility model has the beneficial effects that: the liquid can be effectively prevented from continuing to leak out of the container outlet after the dispenser is used.

Drawings

Fig. 1 is a cross-sectional view of a dispenser of the present utility model.

Description of the embodiments

In order to make the present utility model better understood by those skilled in the art, the following description of the present utility model will be made in detail with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the utility model.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Fig. 1 illustrates a dispenser 100, the dispenser 100 having a housing 102, a container 104 for containing a liquid, a pump 108, a first check valve 120, a second check valve 122, and an outlet 110. The pump 108 is configured to pump liquid from the container 104 through the outlet 110 and into the user's hand, the liquid may be one or more of soap, sanitizing liquid, lotion, moisturizer, and the like, and in some embodiments, the liquid is combined with air and dispensed in the form of a foam. The pump 108 may be, for example, a displacement pump, a piston pump, a diaphragm pump, a rotary pump, or the like.

In some embodiments, the dispenser 100 is a "touchless" dispenser, and the dispenser 100 further includes an actuator 114, the actuator 114 being configured to activate the pump 108 to pump liquid from the container 104 and out the outlet 110 of the dispenser 100. The dispenser 100 may include a power source (not shown), a sensor (not shown) for detecting the presence of a hand, a controller (not shown), and a motor (not shown). A power source is in electrical communication with and provides power to the sensor, controller, and motor. The power source may be an internal power source, such as one or more batteries, or an external power source, such as a solar cell or a conventional power source.

In some embodiments, the dispenser is a manual dispenser, and the actuator 114 may require manual activation, e.g., a user push rod or button, etc. Specifically, a button (not shown) is mechanically coupled to the pump 108, and when the user presses the button, the pump causes liquid to exit the outlet 110 of the dispenser 100 from the container 104.

With continued reference to fig. 1, the pump 108 includes a pump inlet 112, a pump outlet 116, and a pump chamber 118. The pump inlet 112 is in communication with the vessel 104 via a conduit such that the pump inlet 114 receives liquid from the vessel 104. The pump chamber 118 is in communication with the pump inlet 112 via a conduit such that the pump chamber 118 can receive liquid from the container 104 through the pump inlet 112. Pump outlet 116 is in plumbing communication with pump chamber 118 and outlet 110 such that pump 108 can pump liquid from pump chamber 118 through pump outlet 116 and outlet 110. In some embodiments, the pump 108 is a positive displacement pump such that movement of the pump chamber 118 between the expanded and compressed positions causes the pump 108 to pump liquid through the outlet 110 of the dispenser 100 and move liquid from the container 104 into the pump chamber 118. In some embodiments, the pumping chamber 118 has a smaller volume, and the volume of the pumping chamber 118 is between about 0.2 milliliters and about 0.5 milliliters when the pumping chamber 118 is in the expanded position.

In some embodiments, the dispenser 100 includes a first check valve 120 and a second check valve 122. Both the first check valve 120 and the second check valve 122 are disposed between the pump 108 and the outlet 110. The first check valve 120 may be a normally closed valve disposed near the outlet 116 of the pump 108. Movement of the first check valve 120 from the closed position to the open position allows liquid in the pump chamber 118 to move past the first check valve 120 and into the second conduit 121 between the first check valve body 120 and the second check valve 122. Movement of the first check valve 120 from the open position back to the closed position prevents fluid, i.e., air or liquid, from flowing into the pump chamber 118 from the second conduit 121 between the first check valve 120 and the second check valve 122.

In some embodiments, the volume of the second conduit 121 is greater than the volume of the pump chamber 118. In some embodiments, the volume of the second conduit 121 is twice or more the volume of the pump chamber 118. In some embodiments, the volume of the second conduit 121 is three or more times the volume of the pump chamber 118. In some embodiments, the volume of the second conduit 121 is four or more times the volume of the pump chamber 118. In some embodiments, the volume of the second conduit 121 is five or more times the volume of the pump chamber 118.

In some embodiments, the first check valve 120 may be a high flow and fast acting check valve. Specifically, the first check valve closes in less than 0.1 seconds, and in some embodiments, upon activation of the pump 108, the first check valve 120 will move from the closed position to the open position about 5 to about 20 times in about 0.05 seconds, for example, about 10 times in 0.05 seconds. In some embodiments, the first check valve 120 has a minimum cracking pressure, specifically, the cracking pressure of the first check valve 120 is between about 0 megapascals and about 3.5 kilopascals. In some embodiments, first check valve 120 may be, for example, an umbrella valve, a duckbill valve, a flap valve, or the like.

In some embodiments, a second check valve 122 is disposed between the first check valve 120 and the outlet nozzle 110, further the second check valve 122 is a normally closed valve, the second check valve 122 being configured to prevent liquid from flowing out of the outlet 110 of the dispenser 100 when the pump 108 is not operating. When a user desires fluid, the second check valve 122 moves from the closed position to the open position allowing the fluid in the second conduit 121 to leave the outlet 110 of the dispenser 100 and be dispensed into the user's hand, after the fluid stops moving past the second check valve 122 and through the outlet 110, the second check valve 122 returns to the closed position, which prevents residual fluid in the second conduit 121 from exiting the dispenser 100 through the outlet 100, and thus the second check valve 122 acts as an anti-drip. In some embodiments, the second check valve 122 may be a slow-reacting high-flow check valve, specifically, the second check valve 122 remains in the open position for about 0.25 seconds to about 0.75 seconds, such as about 0.5 seconds, even if the first check valve 120 is opened and closed multiple times during the same period of time when the pump 108 is activated. In certain embodiments, the second check valve 122 has a cracking pressure of 3.5 kilopascals to 20 kilopascals, for example 5 kilopascals or 10 kilopascals. In some embodiments, the second check valve 122 may be a ball and spring valve, a mushroom valve, a flap valve, or the like.

In some embodiments, the opening pressure of the second check valve 122 is greater than the opening pressure of the first check valve 120, in particular, the opening pressure of the second check valve 122 may have a pressure between about 3.5 kilopascals and 20 kilopascals, and the opening pressure of the first check valve 120 may have a pressure between about 0 megapascals and about 3.5 kilopascals. In some embodiments, the ratio of the opening pressure of the second check valve 122 to the opening pressure of the first check valve 120 may be between about 2 to 1 and about 4 to 1, specifically, for example, when the ratio of the opening pressure of the second check valve 122 to the opening pressure of the first check valve 120 is 2 to 1, the opening pressure of the second check valve 122 is 6 kilopascals and the opening pressure of the first check valve 120 is 3 kilopascals. In some alternative embodiments, the ratio of the opening pressure of the second check valve 122 to the opening pressure of the first check valve 120 may be greater than 4 to 1, such as 5 to 1, 6 to 1, 7 to 1, 8 to 1, 9 to 1, 10 to 1, 11 to 1, and 12 to 1.

To operate the dispenser 100, a user activates the pump 108 using the actuator 114, thereby causing fluid to flow from the pump chamber 118, through the outlet 110, and into the user's hand. Actuation of the pump 108 causes the pump chamber 118 to move from the expanded position to the compressed position, which causes fluid in the pump chamber to travel through the pump outlet 116 and into the first check valve 120, which causes the first check valve 120 to move to the open position, that is, the force exerted by the fluid creates a pressure on the first check valve 120 that exceeds the opening pressure of the first check valve, which causes the first check valve body 120 to move to the open position. Movement of the first check valve 120 to the open position allows fluid to move past the first check valve 120 and into the second conduit 121 between the first check valve body 120 and the second check valve body 122. As the fluid moves into the second conduit 121, the fluid flows into the second check valve 122 and applies a force to the second stop valve 122 that moves the second stop valve 122 to the open position. That is, the force exerted by the fluid (from actuation of the pump 108) creates a pressure on the second check valve 122 that exceeds the opening pressure of the second check valve 122, which causes the second check valve 122 to move to an open position, the movement of the second check valve 122 to the open position allowing the fluid to move past the second check valve 122, through the outlet 110 of the dispenser 100, and into the user's hand. The contraction of pump chamber 118 also causes first check valve 120 to close rapidly to prevent fluid from being drawn from second conduit 121 and into container 104.

When air on the pump chamber 118 exits the pump chamber 118, the pump 108 is activated and another activation of the pump 108 causes fluid to be pumped to the outlet 110 of the dispenser 100. When pump chamber 118 is fully compressed, fluid flow ceases and the force exerted by the fluid on first check valve 120 decreases until the pressure exerted on first check valve 120 is less than the opening pressure of first check valve 120, which may cause first check valve 120 to return to the closed position. When fluid flow ceases, the force exerted by the liquid on the second check valve 122 will decrease until the pressure exerted on the second check valve is less than the opening pressure of the second stop valve, which will cause the second stop valve to return to the closed position. Expansion and contraction of pump chamber 118 causes first check valve 120 to close and open, respectively. In some embodiments, the opening and closing of the first check valve 120, and thus the expansion and contraction of the pump chamber 118, occurs sufficiently fast that sufficient fluid flow continues through the second conduit 121 to keep the second check valve 122 open.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A dispenser, comprising:

a housing;

the container, it set up in the casing, the container includes pump, first check valve, second check valve and export, the pump includes pump entry and pump export, the pump entry with the container intercommunication, the pump with first check valve passes through first pipeline intercommunication, first check valve with second check valve passes through the second pipeline intercommunication, the second check valve with the export passes through the third pipeline intercommunication.

2. The dispenser of claim 1, further comprising a brake disposed within the housing, the brake for activating the pump.

3. The dispenser of claim 1, wherein the pump further comprises a pump chamber, the second conduit having a volume that is greater than a volume of the pump chamber.

4. The dispenser of claim 3, wherein the volume of the pump chamber is between about 0.2 milliliters and about 0.5 milliliters.

5. The dispenser of claim 1, wherein the pump, the first check valve, and the second check valve are arranged in an up-down arrangement.

6. The dispenser of claim 1, wherein the first check valve is a normally closed valve.

7. The dispenser of claim 6, wherein the first check valve has a cracking pressure between about 0 megapascals and about 3.5 kilopascals.

8. The dispenser of claim 1, wherein the second check valve is a normally closed valve.

9. The dispenser of claim 1, wherein the second check valve has a cracking pressure of between about 3.5 megapascals and about 10 kilopascals.

10. The dispenser of claim 1, wherein the opening pressure of the second check valve is greater than the opening pressure of the first check valve.