RU210670U1 - Intake head for issuing a drink from a container - Google Patents

Abstract

The utility model relates to devices for dispensing drinks from containers and can be used in the food industry and trade. The technical result is to simplify the manufacturing technology and increase the strength of device parts made of polymeric materials. The intake head contains a body with an open channel for passing the drink, made with the possibility of installation on the container. The hollow rod is installed in the channel for passing the drink with the possibility of axial reciprocating movement and sealed with annular sealing elements. The rod position control handle has a yoke mounted on the housing support axis with the possibility of rotation and kinematically connected to the hollow rod, and a lock for turning the control handle yoke, made in the form of a spring-loaded locking element. The body has a channel for supplying gas connected with the channel for passing the drink. One of the ends of the rod is made with the possibility of communication with the cavity of the container when the body is installed on it. Check valves are installed in the gas supply channel and the rod cavity. The body with the gas supply pipe, the hollow stem and some of the parts of the stem position control knob are made of polymeric materials. The walls of the housing with the gas supply pipe are made of equal thickness. Annular sealing elements are located in annular grooves on the outer cylindrical surface of the rod. The housing support is made in the form of a plate with stiffeners, located on top of the gas supply pipe, under which an additional plate with stiffeners is installed, and the locking element of the control fork turning lock is made of polymeric material.

Description

The utility model relates to devices for dispensing drinks from permanent or temporary containers and can be used in the food industry and trade.

Known bypass valve for dispensing drinks containing a movable hollow plunger installed in a housing with channels for supplying and distributing media. The plunger body is connected to the drive and provided with a position lock, resiliently loaded. The valve is made with the possibility of simultaneous passage in opposite directions of pressure gas and liquid. The plunger is made with the possibility of passing liquid, and a check valve is installed at the inlet to the gas channel. A non-return ball valve is also installed in the liquid passage channel. As a drive, a plunger control handle is installed on the body, on which a latch and a latch control mechanism are installed. The latch control mechanism contains a latch limiter, a latch clip, a spring and a key (RF patent for utility model No. 104545, IPC B67D 1/04, publ. 20.05.2011).

Another bypass valve for issuing a drink from a container is known, containing a housing made with the possibility of installation on the container with a vertical open channel for passing a drink installed in the channel for passing a drink with the possibility of reciprocating movement vertically by a hollow plunger with a handle for controlling its position located on the body with lock. The body has a channel for gas supply communicated with the vertical channel, made with the possibility of connecting it to a gas source, one of the ends of the plunger is made with the possibility of communicating it with the container cavity when the body is installed on it. In the channel for supplying gas and at the inlet to the channel for passing the drink, check valves are installed (utility model patent No. 115346, IPC B67D1/04, publ. 27.04.2012).

However, some of the parts of the overflow taps for dispensing a drink from the container of the above analogues are made of metal, the other part is made of polymeric materials, which complicates the manufacturing technology of such taps, increases their cost, and during operation such taps have uneven wear of individual parts, which reduces their maintainability.

The closest analogue (prototype) is the intake head for issuing a drink from a container, containing a housing with an open channel for passing a drink, made with the possibility of installation on a container, a hollow rod installed in the channel for passing a drink with the possibility of axial reciprocating movement and sealed with annular sealing elements, a handle for controlling the position of the hollow rod, having a fork installed on the axis of the housing support with the possibility of rotation and kinematically connected to the hollow rod and a lock for turning the control handle fork, made in the form of a spring-loaded locking element. The body has a gas supply channel communicated with the drink passage channel, which is a branch pipe made in the form of a single part with the body with the possibility of connecting it to a gas source. One of the ends of the hollow rod is made with the possibility of communication with the container cavity when the body is installed on it. Non-return valves are installed in the channels for supplying gas and passing the drink. Moreover, the body with the gas supply pipe, the hollow stem and part of the parts of the stem position control knob are made of polymeric materials (https://alliance.tc/zabomve-golovki/zabornava-golovka-armpolast-tipa-a/).

However, in such an intake head, the walls of the housing with a gas supply pipe are made of different thicknesses, which complicates the manufacturing technology of the housing, contributes to the manufacture of defective parts due to their warping and cracking due to uneven cooling of the polymer melt during casting, and the inner surface of the beverage dispensing channel of the housing has protrusions. and depressions, in particular, annular grooves for installing elastic ring seals, as a result of which the specified channel requires additional processing and grinding, which also complicates the manufacturing technology of the housing. The intake head has a large number of parts, and some parts of the control knob are made of metal, which complicates the design of the device (Fig. 8-10).

The technical result of the claimed utility model is to simplify the manufacturing technology and increase the strength of device parts made of polymeric materials due to their better manufacturing by ensuring that the walls of the housing with the gas supply pipe are of equal thickness (the principle of equal thickness is used) and that the inner surface of the beverage dispensing channel is made without annular grooves for seals, as well as simplifying the design of the device by reducing the number of its parts and making all parts of the control handle from polymeric materials (including the locking element), except for the spring.

The specified technical result is achieved by the fact that in the intake head for dispensing a drink from a container, containing a body with an open channel for passing a drink, made with the possibility of installation on a container, a hollow rod installed in the channel for passing a drink with the possibility of axial reciprocating movement and sealed annular sealing elements, a handle for controlling the position of the hollow rod, having a plug installed on the axis of the housing support with the possibility of rotation and kinematically connected with the hollow rod, and a lock for turning the plug of the control knob, made in the form of a spring-loaded locking element; the body has a gas supply channel connected with the channel for passing a drink, which is a branch pipe made in the form of a single part with the body with the possibility of connecting it to a gas source, one of the ends of the hollow rod is made with the possibility of communicating it with the cavity of the container when the body is installed on it ; check valves are installed in the gas supply channel and the stem cavity, and the body with the gas supply pipe, the hollow stem and part of the parts of the stem position control knob are made of polymeric materials, according to the utility model, the walls of the body with the gas supply pipe are made of equal thickness, annular sealing elements are located in the annular grooves on the outer cylindrical surface of the rod, the body support for installation on the axis of the control fork fork is made in the form of a plate with stiffeners located on top of the gas supply pipe, under which an additional plate with stiffeners is installed, and the locking element of the handle fork turning lock control is made of polymer material.

The claimed utility model is illustrated by the following graphics. In FIG. 1a shows a sectional diagram of the intake head. In FIG. 1b shows a section A-A of the support of the body of the intake head in Fig. 1a. In FIG. 1c shows a B-B section of the beverage supply fitting in FIG. 1a. In FIG. 2 shows node B - the gas supply fitting of the intake head shown in FIG. 1a. In FIG. 3 shows a diagram of the intake head located on the fitting of a container with a drink. In FIG. 4a shows a sectional diagram of the control knob of the intake head. In FIG. 4b - the same, top view. In FIG. 5 - the same, section Г-Г of Fig. 4a. In FIG. 6 shows a section of the body of the intake head. In FIG. 7 is a three-dimensional view of the appearance of FIG. 6. In FIG. 8a shows the appearance of the prototype intake head. In FIG. 8b - the same, section D-D in Fig. 8b. In FIG. 9 shows a section of the body of the sampling head of the prototype. In FIG. 10 is a three-dimensional view of the appearance of FIG. 9. In FIG. 11a shows a fragment of the skirt of the body of the sampling head of the prototype, and in Fig. 116 - the same, in the proposed technical solution.

The intake head for dispensing a drink from the container 1 contains a body 2 with an open channel 3 for passing the drink, made with the possibility of installation on the container 1. The hollow rod 4 is installed in the channel 3 for passing the drink with the possibility of axial reciprocating movement and is sealed with annular sealing elements 5 and 6, which in the extreme upper position of the rod 4 prevent the flow of gas into the container 1, and when the rod 4 is in the extreme lower position, the annular sealing element 6 opens the gap between the walls of the channel 3 of the housing 2 and the outer surface of the rod 4 and the gas enters the container 1. The handle 7 for controlling the position of the hollow rod 4 has a fork 8 installed on the axis 9 of the support 10 of the housing 2 with the possibility of rotation and kinematically connected to the hollow rod 4 by means of protrusions 11. The lock 12 for turning the fork 8 of the handle 7 of the control is made in the form of a locking element 14 spring-loaded by a spring 13 In the initial upper position of the handle 7, the locking element 14 abuts against the body 2, and in the extreme lower position of the handle 7, the end of the locking element 14 is located in the groove 15 of the housing 2, preventing spontaneous movement of the handle 7 and the stem 4. The fixing of the locking element 14 is carried out by the button 16, the lever 17 of which is passed through the hole 18 in the locking element 14 and placed in the groove of the body of the handle 7 and has a point of rotation relative to this groove. At the same time, the lever 17 of the button 16 is a stroke limiter of the locking element 14. The housing 2 has a gas supply channel connected with the channel 3 for passing a drink, which is a branch pipe 19 made in the form of a single part with the housing 2 with the possibility of connecting it to a gas source. One of the ends of the hollow rod 4 is configured to communicate its cavity 20 with the cavity of the container 1, when the housing 2 is installed on it. In the branch pipe 19 of the gas supply and the cavity 20 of the stem 4, check valves 21 and 22 are installed, respectively. The body 2 with the gas supply pipe 19, the hollow stem 4 and all parts of the handle 7 for controlling the position of the stem 4 with the locking element 14 (except for the spring 13) are made of polymeric materials. The walls of the housing 2 with the gas supply pipe 19 are made of equal thickness. The annular sealing elements 5 and 6 are located in the annular grooves on the outer cylindrical surface of the rod 4. The support 10 of the housing 2 for installation on the axis 9 of the fork 8 of the control handle 7 is made in the form of a plate 23 with stiffeners 24 located on top of the gas supply pipe 19, under which has an additional plate 25 with stiffeners 26. The check valve 21 is mounted in the nipple 27 installed at the inlet to the pipe 19 of the gas supply. The check valve 22 is made in the form of a silicone ball 28 located in the seat in the lower part of the hollow stem 4 with the possibility of its movement in the cavity 20 of the stem 4 under the pressure of the drink and its installation on the stop 29 of the nipple 30 with a gap relative to its outlet. The intake head is intended to be connected to a fitting 31 mounted on a beverage container 1, such as a beer keg, in which the beverage may be under pressure. The lower end 32 of the housing 2 of the intake head rests against the fitting 31, the outer contour of which is sealed with an O-ring 33 having slots (not shown in the drawings) for the free passage of carbon dioxide, and the lower end of the hollow rod 4 rests against the spring-loaded spring 34 gasket 35 fitting 31 and located around the end of the immersion tube 36, passed through the axial hole of the gasket 35.

Description of the device. Before installation on a keg (tank 1) and use of the intake head for its intended purpose, a beverage supply hose is mounted on nipple 30 (Fig. 1c, section B-B), connected to a dispensing device, for example, a tap or a defoamer (the drink comes from the keg). On the nipple 27 (Fig. 2, node B) a carbon dioxide supply hose is mounted. The control knob 7 is in its uppermost position and during the supply of carbon dioxide, the channel of the pipe 19 is sealed by annular sealing elements 5 and 6 located in the grooves of the stem 4. After that, the intake head is put on the fitting 31 in its original position. The fitting 31 enters the housing groove 2 by 6.5 mm until it stops (Fig. 3).

To bring the intake head into the working position, press the button 16, the locking element 14 disengages from the housing 2 and the handle 7 is moved down until the locking element 14 enters the groove 15 of the housing 2 under the action of the spring 13 and returns the button 16 to its original position In this case, the hollow rod 4 moves vertically down by 16 mm. The annular sealing element 6 on the rod 4 comes out of contact with the surface of the channel 3 of the body 2 and carbon dioxide flows out in the direction of the arrow (Fig. 3).

When the rod 4 moves down, the seal 33 of the fitting 31 is deformed in two places (Fig. 3): at the point of contact with the body 2 and at the point of contact with the fitting 31 of the keg. At the point of contact with the rod 4 on the seal 33 of the fitting 31, slots are provided for the free passage of carbon dioxide into the keg (indicated by arrows). Also, the rod 4 with its lower end pushes the membrane (not shown in the drawings) in the fitting and is sealed along the gasket 35 of the fitting 31, thus preventing carbon dioxide from entering the cavity 20 of the rod 4 along a short path. Further, carbon dioxide supplied under a pressure of 2-4 bar, acting on the drink, pushes it through the immersion tube 36 of the fitting 31. The drink lifts the silicone ball 28 of the check valve 22 to the stop 29, falling into the cavity 20 of the stem 4 and further through the gap of the nipple 30 along hose to a faucet or defoamer. After the drink is dispensed, the ball 28 of the check valve 22 falls into the seat of the stem 4 under its own weight, closes the cavity 20 of the stem 4 and prevents the drink from moving in the opposite direction. To complete the work and dismantle the intake head from the fitting 31 of the keg (tank 1), press the button 16 until the locking element 14 disengages from the groove 15 of the body 2. The stem 4 together with the handle 7 is returned to its original upper position. The channel 3 of the housing 2 is again sealed with an annular sealing element 6 and the gas flow from the channel of the pipe 19 is stopped. If the carbon dioxide in the source ends and its pressure drops, then to prevent the pressure drop in the keg with a drink, the check valve 21 installed in the nipple 27 is activated, and the gas supply channel in the pipe 19 is automatically locked in the opposite direction, under pressure in the keg (Fig. 2, node B).

Proof of achievement of the claimed technical result. The prototype ("https://alliance.tc/zabomve-golovki/zabomava-golovka-armpolast-tipa-a/") is a plastic intake head from the Alliance company, the diagram in Fig. 8 a, b.

The main disadvantages of the prototype:

the use of metal parts in the handle 37 control: the locking element 38 is made of brass alloy with nickel coating;

low manufacturability of the housing (item 39): large mass of the housing and different thickness of its walls, the need for machining after casting grooves for sealing rings 40.41 (Fig. 9 and 10);

insufficient strength of the skirt (the place of interface with the keg fitting) of body 39 (Fig. 11a, b);

complex design of the handle 37 - 5 parts are used: 42, 43, 38, 44, 45 (Fig. 8b).

The advantages of the claimed design of the utility model:

the body is made in comparison with the prototype more technologically advanced, the estimated time of the casting cycle is less and the weight of the casting is less, there is no need to mechanically refine the inner and outer surfaces of the body (Fig. 6 D1).

Equal thickness in the design provides better technological properties, such as uniform cooling, less warping, less cooling time. Also due to this, in the claimed device (Fig. 6 D2 and Fig. 7 D3, D4) achieved a smaller weight than the prototype. These figures indicate a reduction in weight and the achievement of equal thickness due to the geometry of the body 2 and the use of stiffeners 24 and 26 in the manufacture of supports 10 and pipe 19. Ring elements G1 (Fig. 9) in the prototype require additional machining, which increases the time spent on production , and accordingly complicates the manufacturing technology and increases labor costs. In the claimed device, ring elements D1 (Fig. 6) are absent on the housing and are made on the outer surface of the hollow rod, which does not require additional surface treatment.

The design strength of the skirt is higher, with the same types of loading, due to the correct selection of geometry, using the principle of equal thickness. In FIG. 11a shows a weak point in the prototype in comparison with the claimed design (Fig. 11b). Compared with the prototype (Fig. 8b), the control knob 7 in the proposed solution (Fig. 3) has a simpler design: 4 parts instead of 5. The locking element 14 is made of plastic (brass in the prototype). The device is easy to assemble and disassemble. In order to disassemble the head, you need to remove the button 16 and the rest of the parts are easily separated from the body. Assembly is in reverse order.

Thus, from the above rationale, it follows that the claimed technical solution achieves a simplified design and simplification of its manufacturing technology, as well as an increase in the strength of the intake head parts.

Claims (1)

Intake head for dispensing a drink from a container, comprising a body with an open channel for passing a drink, made with the possibility of installation on a container, a hollow rod installed in the channel for passing a drink with the possibility of axial reciprocating movement and sealed with annular sealing elements, a handle for controlling the position of the hollow a rod having a fork installed on the axis of the housing support with the possibility of rotation and kinematically connected with the hollow rod, and a lock for turning the control handle fork, made in the form of a spring-loaded locking element; the body has a gas supply channel connected with the channel for passing a drink, which is a branch pipe made in the form of a single part with the body with the possibility of connecting it to a gas source, one of the ends of the hollow rod is made with the possibility of communicating it with the cavity of the container when the body is installed on it ; in the channels for supplying gas and passing the drink, check valves are installed, and the body with the gas supply pipe, the hollow stem and part of the parts of the stem position control knob are made of polymeric materials, characterized in that the walls of the body with the gas supply pipe are made of equal thickness, annular sealing elements located in grooves on the outer cylindrical surface of the rod, the body support for installation on the axis of the control fork fork is made in the form of a plate with stiffeners, located on top of the gas supply pipe, under which an additional plate with stiffeners is installed, and the locking element of the control knob turn lock made of polymer material.

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