CN111449524A

CN111449524A - Device for dispensing a liquid from a container and extraction tube therefor

Info

Publication number: CN111449524A
Application number: CN202010420570.1A
Authority: CN
Inventors: 韩志轩
Original assignee: Shengdoushi Shanghai Technology Development Co Ltd
Current assignee: Shengdoushi Shanghai Science and Technology Development Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-07-28
Also published as: WO2021233257A1

Abstract

The present invention provides an apparatus for dispensing a liquid from within a container, comprising: a pressure pump, an extraction pipe and a delivery pipe, the input end of the extraction pipe comprising at least a first input port and a second input port, wherein the first input port is positioned in the container and adapted to allow extraction of all available liquid in the container, and the second input port is positioned within the container and adapted to be positioned with a higher liquid level than the first input port. The present invention also provides an extraction tube for dispensing a liquid from a container. The liquid distribution device realizes the residue alarm through the mechanical structure of the extraction pipe, has low implementation cost and good reliability.

Description

Device for dispensing a liquid from a container and extraction tube therefor

Technical Field

The invention relates to the technical field of liquid distribution, in particular to a liquid distribution device with a residue warning function and an extraction pipe for the liquid distribution device.

Background

In a liquid dispensing device such as a beverage dispenser, a pressure pump such as an air pump or a hydraulic pump is generally used to pump a liquid such as a beverage in a tub through a pipe and discharge the liquid from a valve nozzle. Due to the application requirements of, for example, store brands, operators often need to be reminded of the excess material in the charging basket to make preparation for feeding in advance.

Currently, liquid dispensing devices on the market generally use electronic monitoring to realize feeding reminding. For example, a flow switch is installed on the liquid output pipe to feed back the volume of the liquid flowing out, and the remaining amount is calculated by subtracting the flowing-out volume from the total volume in the barrel, so that the remaining amount monitoring is completed. For another example, a probe, a floating ball and other liquid level sensors are placed inside the charging basket, or infrared rays, sound waves and other liquid level sensors are placed on the outer wall of the charging basket, and when the excess materials reach the warning liquid level, a red light or an alarm is used for warning.

The existing scheme has high cost and low reliability because sensitive electronic components are used and an expensive controller needs to be configured. In addition, the existing solutions have many design components, high technical support and maintenance requirements, and are prone to food safety risks.

Disclosure of Invention

The present invention provides an apparatus for dispensing a liquid from within a container, comprising: a pressure pump adapted to drive a flow of liquid in the conduit; an extraction tube having an input end adapted to extend into the interior chamber of the vessel and an output end connected to the inlet of the pressure pump to extract liquid from the vessel under the drive of the pressure pump; a delivery pipe connected to an outlet of the pressure pump to output the extracted liquid; the input end of the extraction duct comprises at least a first input port and a second input port, wherein the first input port is positioned in the container so as to allow extraction of all available liquid in the container, and the second input port is positioned within the container so as to have a higher liquid level than the first input port.

Advantageously, the extraction pipe comprises a main pipe and a first branch pipe, one end of the main pipe being connected to the inlet of the pressure pump and the other end being formed as the first inlet, and one end of the first branch pipe being connected to the main pipe and the other end being formed as the second inlet.

Advantageously, the extraction pipe comprises a main pipe, a first branch pipe and a second branch pipe, wherein one end of the main pipe is connected to the inlet of the pressure pump, the other end of the main pipe is connected to a pipe joint, one end of the first branch pipe is connected to the pipe joint, the other end of the first branch pipe forms the first input port, one end of the second branch pipe is connected to the pipe joint, and the other end of the second branch pipe forms the second input port.

Advantageously, the first and second branch pipes are arranged side by side and connected to the main pipe by means of a pipe connection.

Advantageously, the second sub-pipe is sleeved around the periphery of the first sub-pipe with a gap between the first and second sub-pipes allowing liquid and gas to flow therethrough.

Advantageously, the input end of the extraction duct further comprises a third input port, the position of which within the container is adapted to be arranged with a higher level than the second input port (24).

Advantageously, the extraction pipe comprises a main pipe, a first branch pipe and a second branch pipe, wherein one end of the main pipe is connected to the inlet of the pressure pump, the other end of the main pipe is formed as the first input port, one end of the first branch pipe is connected to the main pipe, the other end of the first branch pipe is formed as the second input port, one end of the second branch pipe is communicated to the main pipe, and the other end of the second branch pipe is formed as the third input port).

The present invention also provides an extraction tube for dispensing liquid from within a container, comprising: an input adapted to be extended into the inner cavity of the container and comprising at least a first input port and a second input port, the first input port being positioned within the container and adapted to allow extraction of all available liquid within the container, the second input port being positioned within the container and adapted to be positioned with a higher level of liquid than the first input port; an output adapted to be connected to an inlet of a pressure pump to draw liquid from the container under the drive of the pressure pump.

Advantageously, the extraction pipe comprises a main pipe, a first branch pipe and a second branch pipe, wherein one end of the main pipe is suitable for being connected to an inlet of the pressure pump, the other end of the main pipe is connected to a pipe joint, one end of the first branch pipe is connected to the pipe joint, the other end of the first branch pipe forms the first input port, one end of the second branch pipe is connected to the pipe joint, and the other end of the second branch pipe forms the second input port.

Advantageously, the input end of the extraction duct further comprises a third input port, the third input port being adapted to be arranged at a higher level of liquid within the container than the second input port.

The liquid distribution device realizes the residue alarm through the mechanical structure of the extraction pipe, has low implementation cost and good reliability.

Drawings

Further details and advantages of the invention will be described in further detail below with reference to the accompanying drawings, in which:

FIG. 1 is a first embodiment of an apparatus for dispensing liquid from a container according to the present invention, wherein a first extraction tube according to the present invention is used;

FIG. 2 is a second embodiment of the apparatus according to the invention, in which a second extraction tube according to the invention is used;

FIG. 3 is a third embodiment of the apparatus according to the invention, in which a third extraction tube according to the invention is used;

FIG. 4 is a fourth embodiment of the apparatus according to the invention, in which a fourth extraction tube according to the invention is used;

FIG. 5 is a fifth embodiment of the apparatus according to the invention, wherein a fifth extraction tube according to the invention is used;

Fig. 6 shows a sixth embodiment of the device according to the invention, in which a sixth extraction tube according to the invention is used.

The drawings described above are for illustration and example only and are not drawn to scale nor are all of the components or details associated with a particular use environment fully drawn. Those skilled in the art will appreciate that the conception and specific use of the disclosure may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention.

Detailed Description

The terms "first," "second," and the like, as may be used in the following description, are not intended to limit any order, but merely to distinguish between various separate components, features, structures, elements, and the like, that may be the same, similar, or different. Meanwhile, descriptions about orientations such as "upper", "lower", "inner", "outer", "left", "right", "radial", "axial", and the like may be used in the following description, unless explicitly stated, are merely for convenience of description, and do not form any limitation on the technical solution of the present invention.

Fig. 1 is a schematic diagram of an apparatus for dispensing liquid from a container 80 according to the present invention. In the present invention, the "container" is used to describe broadly a container suitable for storing liquid, including sealed and non-sealed containers, and may be in various shapes of a can, a tub, a box, a bottle, and the like. The device according to the invention, also called "liquid dispensing device", is used to withdraw a metered quantity of liquid from a container.

As shown, the liquid dispensing device comprises a pressure pump 10 adapted to power the flow of liquid, which may be selected according to the requirements of the application etc., e.g. a pressure pump powered by means of an air compressor etc. The inlet of the pressure pump 10 is connected to the extraction tube 20, and the extraction tube 20 extends into the container 80, so that the liquid in the container is extracted through the extraction tube by the pressure pump. The outlet of the pressure pump 10 is connected to a delivery pipe 90 to output the liquid extracted from the container. The piping of the delivery pipe 90 may be provided with, for example, a valve which, in addition to controlling the opening and closing of the delivery flow path, may be provided in conjunction with the pressure pump so that the pressure pump is started while the flow path is open and stopped while the flow path is closed.

The extraction tube 20 is provided in fig. 1 as a continuous conduit having an input end 22 and an output end 21 at its two ends, wherein the input end 22 is adapted to extend into the inner cavity of the container 80 and the output end 21 is adapted to be connected to the inlet of the pressure pump 10 for extracting liquid from the container under the driving of the pressure pump. The input end 22 is provided with another opening as a second input port 24 at a distance from the end in addition to the port at the end as a first input port 23. After the extraction tube is in place in the container 80, the first inlet 23 is located at a position h1 in the container that is almost adjacent to the bottom of the tank, allowing extraction of almost all of the available liquid in the container, while the second inlet 24 has a higher level in the container than the first inlet 23 at a position h 2. The position of the second inlet 24 is set to correspond to a situation where the liquid surplus in the vessel is already small and ready for feeding.

During normal liquid dispensing, when the liquid level in the container 80 is higher than the position h2 of the second inlet, liquid can enter the extraction tube 20 from both the first inlet 23 and the second inlet 24. As less liquid is present in the container, and the liquid level is below the level h2 of the second inlet, liquid enters the extraction tube only from the first inlet 23, and a large amount of air is drawn in from the second inlet 24. This results in a significant reduction in liquid flow from the outlet conduit 90 and an audible sound due to the intake of air from the second inlet port, thereby simultaneously providing a visual and audible alarm of insufficient material remaining to alert the operator to the readiness for replenishing.

Fig. 2 is a schematic view of another embodiment of a liquid dispensing device according to the invention, differing from the liquid dispensing device of fig. 1 mainly in the modification of the extraction duct. Specifically, the extraction pipe is composed of a main pipe 30 and a branch pipe 40, wherein one end of the main pipe 30 is connected to an inlet of the pressure pump 10, and the other end is formed as the first input port 23, and one end of the branch pipe 40 communicates with the main pipe 30, and the other end is formed as the second input port 24. The main pipe 30 and the branch pipes 40 may be provided as an integral piece, or may be formed by connecting the branch pipes to the main pipe after being formed separately. Compared with the case that the second input port is directly formed in the side wall of the extraction pipe in fig. 1, the extraction pipe in fig. 2 adopts the branch pipe 40, so that stress concentration of the extraction pipe caused by the opening formed in the side wall can be reduced, and the pipe body strength is better.

Fig. 3 is a schematic view of another embodiment of a liquid dispensing device according to the present invention, with further modifications to the extraction tube. Specifically, the extraction pipe includes a main pipe 30, a first branch pipe 40, and a second branch pipe 50, wherein one end of the main pipe 30 is connected to an inlet of the pressure pump 10, and the other end is connected to a pipe joint 60, and the first branch pipe 40 and the second branch pipe 50 are arranged in parallel and connected to the main pipe through the common pipe joint 60. Wherein one end of the first branch pipe 40 is connected with the pipe joint 60, the other end is formed as the first input port 23, one end of the second branch pipe 50 is connected with the pipe joint 60, and the other end is formed as the second input port 24. The main pipe 30, the first branch pipe 40 and the second branch pipe 50 according to the present embodiment are connected to the pipe joint 60, for example, by plugging, so that selection can be made in use to meet the use requirements of containers with different depths.

Fig. 4 is a schematic view of another embodiment of a liquid dispensing device according to the present invention with further modifications to the extraction tube. Specifically, the extraction pipe includes a main pipe 30, a first branch pipe 40, and a second branch pipe 50, wherein one end of the main pipe 30 is connected to an inlet of the pressure pump 10, and the other end is connected to a pipe joint 60, and the second branch pipe 50 is fitted over the first branch pipe 40 and is commonly connected to the pipe joint 60 to communicate with the main pipe 30. The free end of the first branch pipe 40 forms a first inlet 23, the end of the second branch pipe 50 forms a second inlet 24, and a gap is left between the first branch pipe 40 and the second branch pipe 50 to form a passage for liquid or gas to flow through.

Fig. 5 is a schematic view of another embodiment of a liquid dispensing device according to the present invention with further modifications to the extraction tube. Specifically, the input end of the liquid distributor extraction tube includes three input ports: a first input port at the distal end, a second input port having a higher fluid level than the first input port, and a third input port having a higher fluid level than the second input port.

The position h1 of the first input port in the container is almost proximate the bottom of the tank after the extraction tube is in place in the container, thereby allowing extraction of almost all of the liquid in the container. As the liquid in the container becomes less and less, when the liquid level is lower than the position h2 of the second inlet, the liquid enters the extraction tube only from the first inlet and the third inlet, and simultaneously enters a large amount of air from the second inlet. This results in a significant reduction in the flow from the delivery line and an audible sound due to the intake of air from the second inlet, which gives both a visual and audible alarm of insufficient material remaining, alerting the operator to prepare the feed.

When the liquid in the container is further reduced to a position lower than the third inlet, the liquid enters the extraction tube only from the first inlet, and simultaneously enters a large amount of air from the second inlet and the third inlet. This results in a further reduction in the flow from the takeoff pipe and a greater sound due to the suction of air from the second and third inlet ports, thus alerting the operator to the need for replenishment as soon as possible, thereby simultaneously giving a visual and audible alarm of a serious shortage of excess material.

The extraction pipe shown in fig. 5 allows for multi-level warning of the degree of residue in the container by arranging a plurality of input ports at different liquid levels, which is convenient for an operator to grasp the amount of liquid remaining in the container. Advantageously, in addition to the three inlet configurations shown in the figures, further inlets may be provided as desired. In addition, the input ports may be configured to have different apertures to allow for different flow rates and audible alarms at different fluid levels.

Fig. 6 is a schematic view of another embodiment of a liquid dispensing device according to the present invention with further modifications to the extraction tube. In comparison with the embodiment shown in fig. 5, in addition to the first inlet 23 at the end of the extraction tube, other inlets having a higher liquid level are not provided directly on the body of the extraction tube, but instead are provided at the ends of the branch tubes extending from the body of the main tube. Specifically, the extraction pipe is composed of a main pipe 30, a first branch pipe 40, and a second branch pipe 50, one end of the main pipe 30 being connected to the inlet of the pressure pump 10 and the other end thereof being formed as the first input port 23, one end of the first branch pipe 40 being connected to the main pipe 30 and the other end thereof being formed as the second input port 24, and one end of the second branch pipe 50 being communicated to the main pipe 30 and the other end thereof being formed as the third input port 25.

The foregoing merely describes exemplary embodiments of the spirit and principles of the present invention. It will be appreciated by those skilled in the art that changes may be made in the described examples without departing from the principles and spirit thereof, and that such changes are contemplated by the inventors and are within the scope of the invention as defined in the appended claims.

Claims

1. An apparatus for dispensing liquid from a container, comprising:

A pressure pump (10) adapted to drive a flow of liquid in the conduit;

An extraction tube (20) having an input end (22) and an output end (21), wherein the input end (22) is adapted to extend into the inner cavity of the container (80), and the output end (21) is connected to the inlet of the pressure pump (10) to extract liquid from the container (80) under the driving of the pressure pump (10); and

A delivery pipe (90) connected to the outlet of the pressure pump (10) to output the extracted liquid;

It is characterized in that the preparation method is characterized in that,

The input end (22) of the extraction duct (20) comprises at least a first input port (23) and a second input port (24), wherein the first input port (23) is positioned in the container in such a way as to allow extraction of all available liquid in the container, and the second input port (24) is positioned in the container in such a way as to have a higher liquid level than the first input port (23).

2. The device according to claim 1, characterized in that the extraction pipe comprises a main pipe (30) and a first branch pipe (40), wherein one end of the main pipe (30) is connected to the inlet of the pressure pump (10) and the other end is formed as the first inlet port (23), and wherein one end of the first branch pipe (40) is connected to the main pipe (30) and the other end is formed as the second inlet port (24).

3. The device according to claim 1, characterized in that the extraction pipe comprises a main pipe (30), a first branch pipe (40) and a second branch pipe (50), wherein one end of the main pipe (30) is connected to the inlet of the pressure pump (10) and the other end is connected to a pipe joint (60), wherein one end of the first branch pipe (40) is connected to the pipe joint (60) and the other end is formed as the first inlet port (23), and wherein one end of the second branch pipe (50) is connected to the pipe joint (60) and the other end is formed as the second inlet port (24).

4. A device according to claim 3, characterised in that the first (40) and second (50) branch pipes are arranged side by side and connected to the main pipe (30) by means of a pipe connection (60).

5. The device according to claim 3, wherein the second branch pipe (50) is fitted around the outer periphery of the first branch pipe (40), and the first branch pipe (40) and the second branch pipe (50) have a gap therebetween that allows liquid and gas to flow therethrough.

6. The device according to claim 1, wherein the input end (22) of the extraction tube (20) further comprises a third input port (25), the third input port (25) being adapted to be arranged at a higher level in the container than the second input port (24).

7. The device according to claim 6, characterized in that the extraction pipe comprises a main pipe (30), a first branch pipe (40) and a second branch pipe (50), wherein one end of the main pipe (30) is connected to the inlet of the pressure pump (10) and the other end is formed as the first inlet (23), wherein one end of the first branch pipe (40) is connected to the main pipe (30) and the other end is formed as the second inlet (24), and wherein one end of the second branch pipe (50) is connected to the main pipe (30) and the other end is formed as the third inlet (25).

8. An extractor tube for dispensing liquid from a container, comprising:

An input adapted to be extended into the inner cavity of the container and comprising at least a first input port and a second input port, the first input port being positioned within the container and adapted to allow extraction of all available liquid within the container, the second input port being positioned within the container and adapted to be positioned with a higher level of liquid than the first input port; and

An output adapted to be connected to an inlet of a pressure pump to draw liquid from the container under the drive of the pressure pump.

9. An extraction pipe according to claim 8, characterized in that the extraction pipe comprises a main pipe, a first branch pipe and a second branch pipe, wherein one end of the main pipe is adapted to be connected to an inlet of a pressure pump and the other end is connected to a pipe connection, wherein one end of the first branch pipe is connected to the pipe connection and the other end forms the first inlet, and wherein one end of the second branch pipe is connected to the pipe connection and the other end forms the second inlet.

10. The extraction tube of claim 8, wherein the input end of the extraction tube further comprises a third input port positioned within the container and adapted to be disposed at a higher level than the second input port.