RU2270050C1 - Water filter - Google Patents

Abstract

FIELD: stationary domestic filters for cleaning water by downward motion through filtering medium by gravity; domestic filters for final cleaning of cold tap water.

SUBSTANCE: proposed water filter includes filter element mounted in housing provided with branch pipe and detachable cover having water draining hole, diverter located in housing provided with attachment unit, upper hole with water flow divider, lower hole and branch pipe. Device for connecting the diverter branch pipe and filter element housing branch pipe is made in form of retainer of position of said branch pipes in longitudinal direction and lock limiting turn of said branch pipes relative to each other; branch pipe of filter element housing is engageable with holes of diverter housing for operation in water filtering mode or in mode of passing the flow through diverter past the filter element.

EFFECT: enhanced operational reliability of filter; increased service life due to avoidance of weak member-three-way cock.

6 cl, 6 dwg

Description

The invention relates to stationary household filters, in which water is purified when moving through the filtering medium from top to bottom by gravity under the action of gravitational forces, in particular household filters for the purification of cold tap water, purifying water or passing it without filtering when switching to the corresponding mode.

Currently, there are a large number of stationary water filters designed for mounting on a faucet, differing in the original design and variety of materials from which the filter elements are made.

The prior art filter for the purification of water (certificate of the Russian Federation for utility model No. 14928 dated 01/15/2000, C 02 F 1/18), comprising a housing, a sorption porous filter element placed in it, an inlet pipe for introducing purified water into the spout filter and an outlet pipe for outputting purified water. The filter element of the known filter is made of sintered ceramic material obtained by the method of self-propagating high-temperature synthesis in the form of a disk with a conical lateral surface with an angle of inclination of 10-30 °, installed in the filtration direction with a cone pointing down, sealed in the housing with a rubber conical gasket and fixed with a cover . The inlet pipe is equipped with a rubber sleeve and a union nut for connection to the water supply.

The known device is quite effective in purifying tap water, however, it does not ensure the use in necessary cases (for example, for household needs) of water coming from a faucet without additional treatment, since it does not contain a switch for directing the flow of water.

The prior art filter for the purification of drinking water according to the certificate of the Russian Federation for utility model No. 12366 dated 08/26/1999, 7 B 01 D 24/08, containing a housing with a filter element and a diverter (unit in which the direction of flow of water changes, depending on required operating mode). The diverter case is equipped with a nozzle and a switch. A removable adapter connects the nozzle of the filter element housing and the diverter nozzle. The filter element is mounted at the inlet to the water spout, and the diverter serves to distribute the flow of water passing through the filter material. In one embodiment of the device, the diverter case is provided with a fastening element on a spout of water. At the same time, the divertor supplies water to the filter element for additional treatment or allows water to pass through without filtering. In both cases, the divertor functions are realized using a three-way valve interacting with the holes made in the divertor case. The decision on the certificate of the Russian Federation for utility model No. 12366 does not allow replacing the filter material without disconnecting the filter from the water supply and disassembling it, and the protruding part of the diverter valve creates certain inconveniences when using the device.

The closest in technical essence to the claimed invention is a water filter according to the patent of the Russian Federation for utility model No. 38334, C 02 F 1/18.

The known solution includes a filter element located in a housing with a nozzle and a removable cover installed in its bottom and provided with at least one protrusion, a diverter located in the housing equipped with a fastening element on the spout of water, a nozzle and a flow direction switch in the form three-way valve, a means of connecting the nozzle of the housing of the filter element and the nozzle of the diverter in the form of a removable adapter equipped with at least one protrusion.

For aeration of the water flow, the divertor can be additionally equipped with an aerator.

Installing a removable cover of the filter element housing in its bottom allows you to replace the filter material without removing the device from the tap. To facilitate removal, at least one protrusion is made on the lid. The number of protrusions depends on the size of the filter and, accordingly, the cover, as well as the material from which the filter element housing is made.

A three-way valve simplifies the regulation of the direction of flow of the water, and the aerator allows you to get oxygen-saturated water. The protrusion (or protrusions) on the removable adapter performs a function similar to that of the protrusion on the removable cover of the filter element housing.

It should be noted that the presence of a crane in the filter design increases the labor costs for its manufacture, since an independent operation is not only the manufacture of the crane element, but also the structural support of its operation together with other elements in the filter. When installing a finished crane there are difficulties with its adjustment to the individual dimensions of the device. In addition, the valve is subjected to more intense wear and tear than other parts of the device, and if it breaks or is not functioning properly, the filter becomes unsuitable for use.

The objective of the invention is to overcome these disadvantages and create a device that is structurally simple, reliable and easy to use. The technical result consists in increasing the reliability of the filter (increasing its service life) by eliminating the weak link - a three-way valve.

The technical result is achieved by the fact that in the water filter, comprising a filter element located in the housing with a nozzle and a removable cover with a hole for draining water, a diverter equipped with a fastening element on the spout, an upper hole with a water flow divider, a lower hole and a nozzle, means for connecting the diverter pipe and the filter element housing pipe, the following improvements are made:

- means for connecting the divertor nozzle and the filter element housing nozzle is made in the form of a position lock of said nozzles relative to each other in the longitudinal direction and a stopper restricting the rotation of the filter element housing nozzle relative to the diverter nozzle;

- the nozzle of the filter element housing is configured to interact with the holes of the divertor housing, ensuring the operation of the device in the water filtration mode or in the mode of passing the water flow through the diverter, bypassing the filter element.

In a preferred embodiment of the invention, the interaction of the nozzle of the filter element housing with the holes of the diverter housing and the corresponding mode of operation of the filter is achieved due to the additional hole and the bypass channel in the wall of the nozzle housing of the filter element.

When the nozzle of the filter element housing is rotated until the specified hole is aligned with the upper hole of the diverter housing, water is supplied to the filtration and flows through the hole in the cover of the filter element housing.

When the nozzle of the filter element housing is rotated to a position in which the upper opening of the divertor housing is located above the bypass channel, the water flow is directed only through the divertor and is not subjected to cleaning in the filter element.

In a preferred embodiment of the invention, the stopper is made in the form of an arched protrusion on the nozzle of the filter element housing, limited by an arc of 60 ° ... 120 °, and interacting with it when the nozzles rotate relative to each other by a 90 ° angle of the response groove made on the end of the diverter nozzle , and limited by an arc of 150 ° ... 210 °.

In a preferred embodiment of the invention, the latch is made in the form of an element interacting with two recesses made on the surface of the diverter pipe and two grooves, one of which is through and made in the wall of the diverter pipe, and the other is circular and made in the pipe wall of the filter element housing.

One of the suitable forms of the retainer is shown in Fig.6 and can be characterized as follows:

the latch is made in the form of a flat horseshoe-shaped bracket containing an open annular element with an outer radius R and an inner radius r and three protrusions associated with it, combined into a single part - a segment with a rectilinear base and a radius r located in the upper part of the bracket, and two rectangular protrusions forming the pharynx of the bracket and located opposite each other, parallel to each other and perpendicular to the rectilinear base of the segment, which is perpendicular to the vertical axis of the bracket, while the small upper ends are rectangular The protrusions are located diametrically at the level of the horizontal axis of the open annular element, parallel to the rectilinear base of the segment, and r / R = 0.82 ... 0.85.

Unlike the design of the prototype, the claimed solution does not have a tap in the diverter, and the direction of the water is regulated and, accordingly, a predetermined mode of operation (filtering or draining water through the diverter to the sink) is established by rotating the nozzle of the filter element housing, in the wall of which an opening and a bypass channel are additionally made.

The connection of the divertor pipe and the filter element housing pipe using a latch that interacts with two recesses made on the surface of the divertor pipe and two grooves, one of which is through - in the wall of the divertor pipe, and the other ring - in the wall of the filter element housing, simplifies the connection nozzles, preserving the strength of the connection, and also to eliminate the extra part - a massive adapter, necessary in the solution prototype.

The design of the retainer and grooves in the walls of the nozzles allows you to rigidly fix the position of the nozzles relative to each other in the longitudinal direction with the possibility of ensuring their rotation relative to each other.

Installing a removable cover of the filter element housing in its bottom allows you to replace the filter material without removing the device from the tap. To facilitate removal, a protrusion is made in the central part of the cover of the filter element housing.

It should be noted that for the convenience of using the device, the rotation of the filter element housing is used as an indicator of the direction of water movement: when it is in the vertical position, the water is not filtered, but by gravity passes through the divertor to the sink, and if it is horizontal, the indicator shows the consumer that the water is directed to it. In the latter case, to ensure an even continuous stream, it is advisable to provide an opening for draining the filtered water in the cover of the filter element housing with an additional channel perpendicular to the axis of the filter element housing.

The invention is illustrated by the following graphic materials:

Figure 1 - Filter for water (in isometric) in the mode of passing water through a diverter;

Figure 2 - the same, in the mode of passing water through the divertor, a General view;

Figure 3 is the same in the filtering mode (isometry);

Figure 4 is the same, section aa (Figure 3);

Figure 5 is the same, section bB (Figure 2);

6 is the same clamp.

The water filter includes a filter element 1 located in the housing 2 with a nozzle 3 and a removable cover 4 with a hole 5 for draining water, communicating with an additional channel 6, a diverter 7 with a nozzle 8, a fastening element 9 of the divertor 7 on the spout and a hole 10 s a water flow divider for entering water into the divertor 7. The means of connecting the nozzle 8 of the divertor and the nozzle 3 of the housing 2 of the filter element 1 are made in the form of a latch 11 of the position of these nozzles relative to each other in the longitudinal direction and a stopper made in the form of arcs a protrusion 12 on the surface of the pipe 3 and the corresponding groove 21 on the end of the pipe 8. The interaction of these elements limits the rotation of the pipe 3 of the housing of the filter element 1 relative to the divertor 7 by a predetermined angle.

An additional hole 3a is made in the wall of the hollow pipe 3, designed to direct the flow of water into the housing 2 of the filter element 1. To withdraw from the divertor 7 when operating in the water supply mode only through the divertor 7, bypassing the filter element 1, a bypass channel is made in the pipe 3, and in the divertor 7 - hole 3g.

The latch 11 is made in the form of an element interacting with two recesses 13 on the surface of the pipe 8 of the diverter 7 and two grooves, one of which 14 is through, located in the wall of the pipe 8, and the other 15 is annular in the wall of the pipe 3. The latch 11 is made in in the form of a flat, horseshoe-shaped bracket (Fig.6), formed by an open annular element 16 with an outer radius R and an inner radius r, with a ratio r / R = 0.82 ... 0.85, and three protrusions associated with it, combined into a single part, of the segment 17 with rectilinear base 18 and radius r (marked by a dashed line and inscribed in the annular element 16) located in the upper part of the bracket, and two rectangular protrusions 19, forming the pharynx of the bracket, and located opposite each other, parallel to each other and perpendicular to the rectilinear base 18, which is located at right angles to the vertical axis of the bracket. Moreover, the small upper ends 20 of the rectangular protrusions 19 are located diametrically at the level of the horizontal axis of the open annular element 16 parallel to the rectangular base 18 of the segment. The stopper is made in the form of an arcuate protrusion 12 located on the nozzle 3, and a reciprocal groove 21 made on the end of the nozzle 8. The interaction of the protrusion 12 and the groove 21 allows you to limit the rotation of the nozzles relative to each other by an angle of 90 °, while the said protrusion 12 is limited by an arc 60 ° ... 120 °, and the return groove 21 with an arc of 150 ° ... 210 °.

For the convenience of using the filter in the cover 4 of the housing 2 of the filter element 1, an additional channel 6 is made, oriented perpendicular to the longitudinal axis of the housing 2 of the filter element 1, communicating with the hole 5 for draining the water.

It should be noted that the housing 2 simultaneously serves as a handle for switching the water flow to the filter element 1 or divertor 7.

On the opposite spout of the diverter part 7, it is possible to install an aerator, which is attached to the diverter 7 using a threaded connection (not shown).

The operation of the device is as follows.

The filter is supplied assembled and can operate in two modes - the filtration mode through the filter element 1 and the mode of water passage through the diverter 7 to the sink.

The device is connected through a divertor 7 to the spout of water using a threaded connection with a closed faucet (not shown) for cold water, while the housing 2 of the filter element 1 occupies a vertical position (Figure 1). Then the casing 2, used to switch the direction of the water flow, is turned 90 ° C and fix its position, bringing the protrusion 12 to the stop at the edges of the groove 21. Then, carefully open the tap. Water flows from the spout to the divertor 7 through the holes 10, 3a, the cavity of the pipe 8 and pipe 3 into the housing 2 of the filter element 1.

First, water is passed to the drain to flush the filter element 1. When a trickle of water without bubbles flows from the additional channel 6 in the cover 4 of the housing 2, the valve is closed. From now on, the filter is ready for use.

In the filtering mode, the device is operated by opening a cold water tap with the horizontal position of the housing 2.

In the mode of water passage through the divertor 7 (without filtration), the housing 2 is installed in an upright position, and water from the spout enters the hole 10 with the diverter diverter 7, then into the bypass channel 3c, the aerator, if any (not shown) and through the hole 3g goes to the sink.

When using a regenerated filter element for its regeneration or, if necessary, replacing the filter element with a new tap, the water spout is closed, when the housing 2 is horizontal or vertical, the cover 4 is unscrewed and the filter element 1 is removed.

The structural unity of the filter elements indicated in the drawings is illustrated by the example of disassembling a water filter.

The filter is disassembled as follows:

Unscrew the cover 4 of the housing 2, remove the filter element 1. The diverter 7 is removed from the spout. The retainer 11 is removed from the recesses 13 and the grooves 14 and 15 and, moving the divergor 7 and the housing 2 in the longitudinal direction, disconnect them. This opens up access to the hole 3A and the bypass channel 3B.

The assembly is carried out in the reverse order, shifting the divertor housing 7 and the filter element housing 2 towards each other, introducing the nozzle 3 into the nozzle 8 until the through groove 14 and the annular groove are combined 15. Next, the latch 11 is inserted, placing its ends in the recesses 13, and the element 17 in said grooves. The click indicates the correct position of the latch 11, fastening the nozzles 3 and 8 and ensuring the normal operation of the stopper of rotation of the pipes, restricting the rotation of the pipe 3 relative to the pipe 8 of the diverter 7.

The latch 11 (Fig.6) consists of an open annular element 16 with an outer radius R and an inner radius r, providing the necessary elasticity of the latch with a ratio R / r = 0.82 ... 0.85, and three protrusions - one (17) and two (19) forming a single part - a flat horseshoe-shaped bracket. The protrusion 17 is made in the form of a segment of radius r and a rectilinear base 18. The protrusion 17 enters the annular groove 15 through the through groove 14 and excludes the movement of the nozzles 3 and 8 relative to each other along the longitudinal axis, while, thanks to two other rectangular protrusions 19, forming a pharynx staples and interacting with the recesses 13 on the surface of the pipe 8, the latch 11 snaps into place with the small upper ends 20 of the protrusions 19, facing the rectilinear base 18 and located diametrically at the level of the horizontal axis of the annular ring element 16.

When attaching the filter to a water tap, both filtered water (for example, for cooking) and water for household purposes that have not undergone tertiary treatment are stationary used.

The filter is always ready for use and is put into operation when it is necessary to obtain purified water from harmful substances, while installing the filter and its maintenance (changing filter material, tightening the connections) does not complicate the washing process (washing dishes, etc.).

Claims (6)

1. A water filter comprising a filter element housed in a housing with a nozzle and a removable cover with a hole for draining water, a divertor housed in a housing provided with a fastener on the spout, an upper hole with a water flow divider, a lower hole and a nozzle, means connection of the divertor nozzle and the filter element housing nozzle, characterized in that the means of connecting the divertor nozzle and the filter element housing nozzle are made in the form of a position lock of said nozzles itelno other in the longitudinal direction, and a stopper that restricts the rotation of said nozzle relative to each other, and the housing tube of the filter element is adapted to cooperate with holes diverter housing providing operation of the device in water filtration mode or in the water flow skip mode through the diverter, bypassing the filter element. 2. The filter according to claim 1, characterized in that the hole and the bypass channel are additionally made in the wall of the pipe of the housing of the filter element. 3. The filter according to claim 1, characterized in that the latch is made in the form of an element interacting with two recesses made on the surface of the diverter pipe, and two grooves, one of which, through, is made in the wall of the diverter pipe, and the other, annular, made in the wall of the pipe housing of the filter element. 4. The filter according to claim 3, characterized in that the latch is made in the form of a flat horseshoe-shaped bracket formed by an open annular element with an outer radius R and an inner radius r and three protrusions associated with it, forming a single part in the form of a segment with a rectilinear base and radius r, located in the upper part of the bracket, and two rectangular protrusions, forming the pharynx of the bracket and located opposite each other, parallel to each other and perpendicular to the rectilinear base of the segment perpendicular to the vertical axis staples, while the small upper ends of the rectangular protrusions are located diametrically at the level of the horizontal axis of the open annular element, parallel to the rectilinear base of the segment, a r / R = 0.82 ... 0.85. 5. The filter according to claim 1, characterized in that the stopper is made in the form of an arcuate protrusion on the nozzle of the filter element housing and interacting with it when the nozzles rotate relative to each other by a 90 ° angle of the response groove made on the end of the divertor nozzle, wherein the protrusion is limited by an arc of 60 ... 120 °, and the return groove by an arc of 150 ... 210 °. 6. The filter according to claim 1, characterized in that an additional channel is made in the cover of the filter element housing, perpendicular to the longitudinal axis of the filter element housing and communicating with an opening for draining water.

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