Liquid dispenser

Abstract

Liquid dispenser comprising cylindrical elements arranged coaxially to the container neck and concentrically to each other: a cylindrical body with a lid, a measuring cylinder and a measuring piston, wherein the measuring cylinder and the measuring body are axially aligned. Movement is effected by means of a lever attached to the side surface of the measuring cylinder, and holes are provided in the measuring cylinder which, when the measuring cylinder is moved, are alternately aligned with the inlet and outlet holes of the cylindrical body, characterized in that the measuring cylinder has a continuation of the cylindrical wall which forms a drain above the spout holes of its cylindrical surface, as well as a sealing element in the form of a cylindrical wall at the contact point with the measuring piston, while the lid of the cylindrical body has a locking element which ensures tight contact with the container neck.

Description

The technical solution relates to devices for dosing liquids and can be used to measure a certain volume of liquid when pouring from a container, in particular, but not exclusively, from universal consumer containers. The claimed device can be used in the food, pharmaceutical and chemical industries, in production together with containers for liquid food products requiring dosed use, as well as as a separate product for household use. A known bottle filler [GB 1434892, Verof. on 05.05.1976], which has a cylindrical hollow body hermetically connected to the bottle neck, a control dosing chamber arranged coaxially inside the cylindrical hollow body and forming with it an annular flow channel connected from the outside to an annular outlet hole.A small air inlet tube extends from the dispensing chamber into the interior of the bottle and forms the inner wall of the annular opening that allows the flow of liquid from the bottle into the dispensing chamber and into the annular space between the body and the air inlet. In the tube there are means to prevent air from entering the bottle through the annular flow channel. A known metering device for insertion into the neck of a liquid container [US4582230, pub. on 11.10.1983], consisting of an elongated cylinder having a cylindrical outlet projecting beyond the edges of the neck of the specified container for liquid, and one or more holes at the other end connected to the interior of the container for liquid, a metering chamber in the specified elongated cylinder for outlet, a ball valve chamber in the elongated cylinder and a ball valve between the interior of the container and the metering chamber. Near the inlet of the metering chamber on the container side is a ball valve consisting of a ball and a seat. The valve ball is connected by a piston rod to a piston which is movably mounted in the cylindrical outlet of the metering chamber. The disadvantages of the above-mentioned analogues include limited functionality regarding variable regulation of the volume of liquid dispensed from the container (the device is designed to dispense a constant volume determined by the volume of the dosing chamber). In addition, the product is attached directly to the bottle neck and is not intended for reuse as a separate product with different containers. A well-known device for storing and accurately dispensing liquids is RU2123466, published on December 20.1998], comprising a bottle for storing liquid located between the base of the bottle and its neck, and a lid, characterized in that the lid is mounted on the neck of the bottle and connected to a hollow cylinder located along the central axis of the bottle, the base of which has an open upper and lower end with a central hole, and consists of a dosing device that performs a reciprocating movement inside a cylinder consisting of a sleeve and a piston, the sleeve containing an upper part with a larger diameter than the lower part. The dosing device has a lower end with a central bore aligned with the central bore of a cylinder in which the piston includes a piston, a stepped piston rod and a stepped piston head, as well as a central bore. The disadvantages of the known device lie in its imperfect design, which does not ensure reliable sealing, comfort, and uninterrupted operation. The closest analogue to the technical essence of the claimed utility model is a device for dispensing liquids [UA 113714, MPK G01F 11 / 00, published on February 27, 2017, Bulletin No. 4, 2017], which has a cylindrical body with inlet and outlet openings arranged coaxially with the neck cover of the consumer container, in which a measuring cylinder is concentrically mounted, allowing for axial movement during liquid measurement.In this case, the cylindrical body is mounted inside the lid of the consumer container, partially located inside the consumer container, with the possibility of axial movement from the neck of the lid of the consumer container and back, holes are made in the measuring cylinder, which are alternately aligned with the inlet and outlet holes of the cylindrical body when the measuring cylinder is moved using an external mechanism installed on the side surface of the measuring cylinder and having the possibility of interaction of the mechanism with the measuring cylinder, while in the end surface In the measuring cylinder, extending outward from the cylindrical body, there is a hole in which a measuring flask is inserted, installed coaxially to the measuring cylinder with the possibility of axial movement. The disadvantages of the closest analogue are that it does not prevent the liquid from flowing onto the volumetric flask during dosing, which leads to spillage and reduces measurement accuracy. Adequate tightness of the device is not guaranteed if it is mounted on a container containing liquid instead of a lid. The movement of the device parts is not restricted, which would increase the convenience of assembly and disassembly at the container neck. The technical solution is based on the task of improving the design of the liquid dispenser in order to ensure high tightness of the device, prevent overflow of liquids between structural elements outside the provided bypass channels and thereby increase the convenience of use and reliability of the installation of the device.The goal is achieved in that the liquid dispenser contains cylindrical elements arranged coaxially with the container neck and concentrically with each other: a cylindrical body with a lid, a measuring cylinder and a measuring flask, while the measuring cylinder and the measuring cylinder are provided with a scale. The body is equipped with the possibility of axial movement using a lever attached to the side surface of the measuring cylinder, and holes are made in the measuring cylinder, which, when the measuring cylinder is moved, are alternately aligned with the inlet and outlet holes of the cylindrical body. The measuring cylinder has a continuation of the cylindrical wall, forming a drain above the pouring holes of its cylindrical surface, as well as a sealing element in the form of a cylindrical wall at the point of contact with the measuring flask.In this case, the cover of the cylindrical body has a fastening element that ensures tight contact with the container neck. According to the preferred embodiment of the utility model, an annular seal is mounted under the cover of the cylindrical body. According to the preferred embodiment of the utility model, the fastening element of the cylindrical housing cover is designed in the form of latches or a threaded turn, while in the upper part of the cover there is a recess with latches into which the projection projects. The cylindrical body is solid and in the lower part there is an inner cylindrical projection on which there is at least one annular projection which fits tightly against the cylindrical body. According to the preferred embodiment of the utility model, the inlet of the cylindrical body is closed by a failure plug. According to the preferred embodiment of the utility model, the hole of the cylindrical body in which the lever of the measuring cylinder moves is connected to the upper end part of the cylindrical body, and the lever can freely exit from the cylindrical body. It is not allowed that at least one latch attached to the corresponding portions of the wall of the upper end part of the cylindrical body has a greater height than the other part of the cylindrical body. According to the preferred embodiment of the utility model, in . At least one latch (bar or circular projection) is located on the underside of the cylindrical body, which, when the cylindrical body is moved to its upper operating position, contacts the seal or the lower edge of the cover of the cylindrical body and prevents it from leaving the cover. According to a preferred embodiment of the utility model, a cylindrical wall located near the hole in the measuring cylinder through which the measuring flask enters and exits is provided with at least one annular projection (recess) which comes into contact with the circular recesses (projections) corresponding to the scale on the measuring flask. According to the preferred embodiment of the utility model, circular recesses (protrusions) are provided on the measuring piston through each scale division, which move gradually between the circular projections (recesses) in the cylindrical wall of the measuring cylinder and fix their position and at least one lock or circular projection which prevents the measuring piston from withdrawing completely from the measuring cylinder. According to a preferred embodiment of the utility model, on the outer surface of the measuring cylinder, on the lever side, there is a longitudinal recess that begins below the lever and ends at the edge of the lower hole of the measuring cylinder. When the measuring cylinder moves upwards to pour the measured liquid, it connects to the lower part of the longitudinal hole of the cylindrical body in which the lever moves. According to a preferred embodiment of the utility model, at least one annular projection is located on the outer surface of the measuring cylinder. According to the preferred embodiment of the utility model, an additional external cover is mounted on the top of the device, which is mounted on the outer part of the dispenser lid and prevents the penetration of moisture and dust into the dispenser parts and blocks access of the external environment to the liquid stored in the container between its uses. The analysis of the prior art carried out by the applicant, which includes a search for patent and scientific and technical information sources, as well as the identification of sources containing information on analogues of the claimed invention, allowed us to establish that the applicant has not disclosed an analogue characterized by features identical to the essential features of the claimed technical solution. The essence of the utility model is explained in the drawings.In Fig. 1 - shows an exploded view of the liquid dispenser.In Fig. 2 - shows a general view of the installation of a liquid dispenser on the neck of a consumer container.In Fig. 3 - shows the cover of the cylindrical body in section.In Fig. 4 - shows a cylindrical body (front view).In Fig. 5 - shows a measuring cylinder (in section).In Fig. 6 - shows a graduated piston. The drawings show: 1 neck of the consumer packaging; 2 cover of the cylindrical body; 2.1 projections on the inner side of the cover; 2.2 a recess in the upper part of the lid with latches; 2.3 an inner cylindrical projection in the lower inner part of the cover; 2.4 annular projections on the inner surface of the inner cylindrical projection; 3 cylindrical body; 3.1 latch on the underside of the cylindrical body; 3.2 projection in a cylindrical body; 3.3 latch of the cylindrical body; 3.4 raised walls of the upper end part of the cylindrical body; 4 measuring cylinder; 4.1 measuring cylinder cover; 4.2 the wall of the measuring cylinder above its upper holes; 4.3 cylindrical wall of a measuring cylinder; 4.4 longitudinal recess on the outer surface of the measuring cylinder; 4.5 an annular projection on the inner surface of the cylindrical wall of the measuring cylinder; 4.6 upper and lower annular projections on the outer surface of the measuring cylinder; 5 lever arm; 6 hole in the cylindrical body; 7 pins; 8 lower holes of the measuring cylinder; 9 upper holes of the measuring cylinder; 10 stepped piston; 10.1 latch on the underside of the measuring piston; 10.2 stepped annular recesses in the stepped piston; 11 failure plug of the cylindrical body; 12 outer cover; 13 base; 14 stepped piston cover. The liquid dispenser is installed on the consumer container 1 using the dispenser lid 2, with the projections 2.1 engaging with the projections of the consumer container. The tightness of the connection between the consumer container 1 and the dispenser lid 2 is ensured by the gasket 13 located under the bottom of the lid, as well as by the inner cylindrical projection 2.3 and the inner surface of the neck of the consumer container. In the neck of the lid 2 there is a cylindrical body 3 with the possibility of axial movement; the tightness of the connection with the lid 2 is further ensured by a gasket 13 and / or annular projections 2.4 on the inner cylindrical projection of the lid 2, which fit snugly against the outer walls of the cylindrical body and prevent liquid from flowing between the lid and the cylindrical body. A projection 3 is located in the upper part of the cylindrical body 3.2, which is connected to the lid 2 in the recess of the lid 2 by latches 2.2 in its lower working position. In the lower part of the cylindrical body 3, latches 3.1 are located which, in the upper position of the cylindrical body 3, prevent it from leaving the lid 2 by engaging with the inner cylindrical projection 2.3. A measuring cylinder 4 is installed inside the cylindrical body 3. The cylindrical body 3 has holes (inlet and outlet openings) at both ends through which the liquid alternately enters and exits the measuring cylinder. The cylindrical body 3, which is connected to the neck of the consumer container 1 via a lid 2, contains inside a measuring cylinder 4, which is connected at the bottom to the inside of the consumer container and has holes 8 through which liquid can flow is drawn from the container. In the upper part of the measuring cylinder 4 there are holes 9, which in the working position are connected to the outside environment and through which the measured liquid exits the device. At the bottom of the measuring cylinder 4 there is a lid 4.1, which is structurally necessary for the manufacture of the measuring cylinder 4. Above the upper holes 9. In the measuring cylinder 4 there is a wall 4.2 as a continuation of the cylinder walls, which prevents the flow of liquid to the measuring flask 10 when the measuring liquid is poured out of the measuring cylinder and the remaining liquid blocks the measuring cylinder 4 when it returns to the lower working position.On the outer surface of the measuring cylinder 4 there is a longitudinal recess 4.4, which in the upper working position of the measuring cylinder is connected to the bore of the cylindrical body 6 and provides air access to the lower part of the measuring cylinder. This ensures unhindered drainage of the measuring liquid from the measuring cylinder. Above the bore (not indicated in the drawing) in the exit end part of the measuring cylinder 4 there is a cylindrical wall 4.3, the inner surface of which adjoins the outer surface of the measuring piston 10, allowing its movement within the cylindrical wall and the possibility of axial movement within the measuring cylinder and outwards, thereby changing its volume. On the inner surface of the cylindrical wall 4.3 there is an annular projection 4.5, which alternately engages the annular recesses 10 during its step-by-step movement inside and outside the measuring cylinder.2 in the measuring flask 10 and thus ensures that no liquid leaks out between the measuring cylinder 4 and the measuring flask 10. The measuring flask 10 is closed from above by a cover 14. On the outer surface of the measuring cylinder 4, annular projections 4,6 are arranged from above and below, which lie slidably along the inner walls of the cylindrical body 3 and prevent the flow of liquid between the walls of the cylindrical body 3 and the walls of the measuring cylinder 4. At the bottom of the measuring flask 10 there are locks 10.1 which prevent the measuring flask 10 from escaping completely from the measuring cylinder 4. The measuring cylinder 4 moves by axial movement • in a cylindrical body with the aid of a lever 5, the longitudinal movement of which is limited by the end of the hole 6 in the cylindrical body 3 on one side and by locks 3.3 on the other side.In this case, when the lever 5, together with the measuring cylinder 4, moves to the middle position in the hole 6 (halfway), both holes (inlet and outlet) of the cylindrical body are blocked by the end parts of the measuring cylinder, which prevents unmeasured liquid from flowing out of the consumer container. When the lever 5 moves completely to the latch 3.3 and reaches the working position, the measured liquid is poured into the prepared container. In this case, the longitudinal recess 4A in the measuring cylinder is connected through the hole 6 in the cylindrical body 3, and air flows through it into the lower part of the measuring cylinder, ensuring quick supply. Pouring of the measured liquid. On the cylindrical body 3, there are handles 7 on top, with the help of which the cylindrical body 3 of the device is connected to the projection 3.2 by the latches 2.2 of the dispenser lid 2 and can be removed from the neck 1 of the consumer container and back again at the lid 2 when this is necessary for the full use of the liquid from the consumer container 1. The technical solution is implemented as follows. Install the device on the neck of the consumer container 1 with the lid 2 through the gasket 13 and fix the connection of the consumer container 1 with the lid 2 with projections 2.1. Remove the outer cover 12 from the device. The measuring flask 10 is moved if necessary to measure small and precise amounts of liquid. Place it in a position corresponding to the required volume of liquid. When the lever 5 of the measuring cylinder 4 is pressed down with force, under the pressure of the end part of the measuring cylinder 4, the failure plug 11 is removed from the cylindrical body 3 and falls to the bottom of the cylinder body 3 consumer container, which allows liquid access to the device. In this case, when the lever 5 and the cylinder 4 are lowered, the measuring cylinder 4 of the device moves to the starting position and the holes 8 are open for access to the liquid from the consumer container 1.Then the consumer container is tilted with liquid and the measuring cylinder 4 is filled In this case, the measuring cylinder 4 moves, the holes 8 are blocked to allow liquid access, and then the holes 9 are opened through which the measured liquid is poured out. Return the lever 5 to its original position and the measuring cylinder 4 is filled with a new portion of liquid. When most of the liquid has been measured and poured out of the container and the liquid in the tilted container falls below the holes 8 through which it is taken from the container, the cylindrical body 3 is moved out of the consumer container 1 using handles 7, so that all the liquid contained in consumer packages can be measured. Thus, using a liquid dispenser, you can measure amounts of liquid that are within certain limits permitted by the design of the device. In this form, the device hermetically seals the consumer container and can be attached to a consumer container containing a measured liquid instead of a lid. The measured liquid flowing from the device does not spill or overflow. The liquid dispenser is easy to assemble / disassemble and clean and is designed for reusable use, thus reducing environmental impact. At the same time, it is easy to use and has an ergonomic shape. The device is compact, connected to the standardized necks of consumer packaging by a lid, and the lid of the cylindrical body for different necks of consumer packaging can be interchanged according to the design of the neck of the consumer packaging. The liquid dispenser can be manufactured from polymer materials (including those obtained through recycling) using known technologies. The technical solution is fully described in the application documents, and prototypes have been tested, meaning they meet the "industrial suitability" criterion for patentability as a utility model. QUOTES CONTAINED IN THE DESCRIPTION This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature GB 1434892

[0001] US 4582230

[0002] RU 2123466

[0003] UA 113714

[0004]

Claims

Liquid dispenser comprising cylindrical elements arranged coaxially with the container neck and concentrically with each other: a cylindrical body with a lid, a measuring cylinder and a measuring flask, wherein the measuring cylinder and the measuring body are aligned axially by means of a lever attached to the side surface of the measuring cylinder, and in the measuring cylinder there are holes which, when the measuring cylinder is moved, are alternately aligned with the inlet and outlet holes of the cylindrical body, characterized in that the measuring cylinder has a continuation of the cylindrical wall forming a drain over the pouring holes of its cylindrical surface, as well as a sealing element in the form of a cylindrical wall at the point of contact with the measuring flask, while the lid of the cylindrical body has a locking element ensuring tight contact with the container neck. Liquid dispenser according to claim 1, which differs in that an annular seal is installed under the cover of the cylindrical body. Liquid dispenser according to claim 1, characterized in that it comprises a fastening element of the cylindrical housing cover in the form of latches or a thread, while in the upper part of the cover there is a recess with latches to which the projection of the cylindrical body is fastened, and in the lower part there is an inner cylindrical projection which includes at least one annular projection which fits tightly against the cylindrical body. A liquid dispenser according to claim 1, which differs in that the inlet of the cylindrical body is closed with a drop-out plug. Liquid dispenser according to claim 1, characterized in that the hole of the cylindrical body in which the lever of the measuring cylinder moves is connected to the upper end part of the cylindrical body and the free exit of the lever. Falling out of the cylindrical body is prevented by at least one lock installed on corresponding sections of the wall of the upper end part of the cylindrical body and having a greater height than the other part of the cylindrical body. Liquid dispenser according to claim 1, characterized in that in the lower part of the cylindrical body there is at least one locking device (bar or circular projection) which, when the cylindrical body is moved to its upper working position, contacts the seal or the lower edge of the lid of the cylindrical body and prevents it from escaping from the lid. Liquid dispenser according to claim 1, characterized in that the cylindrical wall located next to the opening in the measuring cylinder through which the measuring piston enters and exits is provided with at least one annular projection (recess) which penetrates into the measuring cylinder and comes into contact with the corresponding scale with circular recesses (projections) on the measuring piston. Liquid dispenser according to claim 1 , which differs in that circular recesses (projections) are provided on the measuring piston through each scale division, which circular recesses (projections) move gradually between the circular projections (recesses) in the cylindrical wall of the measuring cylinder and fix their position, and on the underside of the measuring piston there is provided at least one lock or circular projection which prevents the measuring piston from being completely withdrawn from the measuring cylinder. Liquid dispenser according to claim 1, characterized in that on the outer surface of the measuring cylinder on the side of the lever there is a longitudinal recess which begins under the lever and ends at the edge of the lower hole of the measuring cylinder, which is connected to the lower part of the longitudinal hole of the cylindrical body in which the lever moves when the measuring cylinder is raised to pour out the measured liquid. Liquid dispenser according to claim 1, characterized in that at least one annular projection is located on the outer surface of the measuring cylinder. Liquid dispenser according to claim 1, which differs in that an additional external cover is attached to the upper part of the device, which is attached to the outer part of the dispenser cover and prevents the ingress of moisture and dust into the dispensing parts, and blocks the access of the external environment to the liquid stored in the container between uses.

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