JP4530388B2 - Cartridge and apparatus for handling liquid - Google Patents

Description

[0001]
The present invention is a cartridge for purifying a flowing liquid, and includes a cartridge upper part having at least one intake opening, a sealing member, and a cartridge main part having a side wall and an outlet. The present invention relates to a cartridge in which a purifier is held in the part.
[0002]
The present invention also relates to an apparatus for purifying a liquid, comprising a supply container having a bottom portion in which an opening is disposed, and a cartridge that can be filled with a purifying agent and can seal the bottom portion of the container by sealing means. .
[0003]
Liquid purification includes, among others, cleaning, filtration, bacteria removal and aroma and odor change. Cartridges of the kind described at the outset are known. That is, it is composed of an intake sleeve having an intake port and a container having an extraction sleeve. In known cartridges, a granular cleaning agent is retained on the top of the cartridge having an intake sleeve or intake opening and an extraction sleeve to purify the water. Particulate cleaning agents are also known, for example in the form of ion exchangers, activated carbon, minerals and mixtures thereof. By using the above device for purifying the liquid, the liquid such as water is sterilized.
[0004]
Known purification devices for water perform purification by using a mixture of ion exchangers and activated carbon. Preferably, an annular edge inclined at a predetermined angle with respect to the vertical central axis of the supply container, i.e. with respect to the bottom opening, is arranged in the bottom opening of the known purification device supply container. The outer edge having a corresponding slope is arranged along the maximum circumference of the cartridge, and the sloped edge, ie the outer edge, functions as a sealing member. In known devices and cartridges, water contained in a supply container above the cartridge is discharged through an intake opening at the top of the cartridge and a cleaning agent. This known purification device works by gravity. The height of the liquid column is due to cleaning, i.e., the pressure that pushes the liquid to be purified from top to bottom by the cleaning agent in the cartridge.
[0005]
The outer edge of known cartridges, also called filter cartridges, is subject to impact when moving the sealing member radially outward. If this type of cartridge impacts the mechanism or falls to the floor during the manufacturing process, the sealing member, i.e. the outer edge having the maximum diameter of the cartridge, is reliably impacted. The predetermined bypass is formed by the groove or channel of the sealing member, so that it does not have a sufficient sealing function. Known filter cartridges are made of polypropylene which can be plastically deformed by external impacts. Such a channel with no sealing is less important for water demineralization, water aroma or odor improvement and similar treatments. Therefore, even if sealing is not performed in this way, the known purification device can be easily tolerated.
[0006]
Depending on whether a sealing member that easily functions in the form of an O-ring composed of rubber or other elastomeric material is manufactured against the reciprocal sealing sheet, or two plastic surfaces of the same shape are pressed together, The sealing function is always greatly optimized by the other member being twisted with respect to one member. In the known case, the cartridge provided on the rotationally symmetric sealing member is inserted from above into the opening in the bottom of the cone and is slightly twisted manually. When improving the sealing function, it is necessary to further increase the twisting force so as to give a good sealing function by an O-ring arranged outside the cartridge pressed against the inner sealing ring arranged in the opening of the conical bottom. There is. However, with such operation, after a few minutes after use, i.e. after removing the cartridge from the insertion funnel and inserting a new cartridge, the sealing member is impacted and possibly destroyed. . Mounting is a normal operation.
[0007]
Accordingly, it is an object of the present invention to provide a cartridge and liquid as described in detail at the outset which allows leak-free operation by a sealing member between the supply container and the cartridge and is mechanically protected for a relatively long life. It is to further improve the device for purification.
[0008]
The purpose is to arrange an annular groove that opens away from the cartridge main part on the side of the upper side of the cartridge facing the cartridge main part, and an expandable sealing lip projects from the bottom of the annular groove. This is solved by the cartridge according to the present invention.
[0009]
A new cleaning device with a new cartridge and the cartridge described at the beginning can be acted on by gravity. However, the same means of sealing without leakage also applies to cartridges and purifiers acting by pressure, in which case the liquid is pressurized through the cartridge by a pump or other propellant and discharged through the outlet. The However, in the case of a pressure operation system, not only the cartridge but also the supply container can be arranged and operated at an arbitrary angle with respect to the vertical direction. The present invention covers applications in all these cases. However, in order to understand the features of the present invention, a gravity operated purification device will be described, in which the central axis of the supply container and the central axis of the cartridge are substantially vertical. The intake is located in the upper part of the upper part of the cartridge, whereas the cartridge main part with side walls is located in the lower side and the outlet is located in the bottom end of the cartridge. According to this example, the side of the upper part of the cartridge facing the main part of the cartridge eventually becomes a lower region of the upper part of the cartridge to which the main part of the cartridge is fixed. According to the present invention, the annular groove that passes around the central axis of the cartridge along the plane is disposed in the lower region of the upper side of the cartridge. The central axis of the cartridge cuts this plane vertically. The annular groove opens away from the main part of the cartridge, that is, upward in the upper part of the cartridge. Assuming a cartridge with a take-out opening in front of a cartridge standing on the table, a flat and expandable sealing lip is viewed visually at the top of the annular groove and its bottom projecting annularly. When viewing from the top to the bottom in the direction of the central axis, the upper free end of the sealing lip fixed to the bottom of the annular groove can be viewed.
[0010]
The significant advantage of the new sealing lip is mainly in the protective space formed by the annular groove and protecting the sealing lip from external influences, impacts and impacts. The maximum diameter of the cartridge is in the area of the upper part of the cartridge facing the main part of the cartridge. Therefore, the sealing member has a relatively small outer periphery. The reason is that the sealing member has a somewhat smaller diameter inside the annular groove. The radius of the sealing member, i.e. the outer circumference, provides a radius greater than the radius of the sealing lip. It is therefore clear that the sealing lip is mechanically protected. The cartridge according to the invention moves in the direction of the open annular groove, ie in the direction of the protruding sealing lip towards the outer part of the corresponding structure, and is connected in an airtight manner. If a new cartridge according to the present invention is adjacent to the machine part during manufacture or falls to the ground, the impact on the cartridge occurs in the maximum radius region and at most only the outer periphery of the annular groove is damaged. The sealing member itself is protected from impacts or similar effects.
[0011]
In contrast, with known cartridges having an annular sealing edge which itself increases in size as the cartridge size increases, the maximum radius of the cartridge itself may be damaged accordingly, and according to the invention, the sealing lip The size of the diameter depends on the maximum radius of the cartridge. The annular groove only needs to be widened or narrowed accordingly. As a result of the sealing lip formed in the annular groove, variously shaped cartridges according to the invention can be provided without damage.
[0012]
The grooves are preferably annular, referred to as “annular grooves”, but other shapes are possible other than annular. Thus, the sealing lip can also follow a baseline different from a circle, for example an ellipse, an ellipse or a rounded polygon.
[0013]
The advantage of the configuration in which the annular sealing lip is expandable provides an excellent sealing force. Inserting a new cartridge into the outside, i.e. the opening in the bottom of the container, expands the new sealing lip. Up to this point, the sealing lip that has been used in the cartridge spreads rapidly and becomes flat. In the known structure, the outer sealing ring has a larger diameter than the sealing lip, so that when these two parts of the assumed structure are interconnected, the sealing lip spreads rapidly and becomes flat, As a result, twisting and bulging occur on the sealing lip. Twisting and bulging are extremely problematic when sealing lips. The size and force that cause twisting or bulging cannot be defined by the design of the sealing lip. This cannot be defined by the operating state that sometimes occurred prematurely.
[0014]
Since the new sealing ring according to the invention is expandable, the lip can be significantly stretched and torn even if excessive force is applied. However, the resistance to tearing the substrate is very well defined, and as a result, according to the present invention, the shape of the sealing lip is defined and the specific size is determined and the desired substrate is defined. Makes it very slow to reach a point where excessive stretching and tearing occurs. By using commercially available supportable means, the base of the sealing lip and the shape of the closed ring can be found, so that a high sealing force is reached by expansion of the sealing lip during operation.
[0015]
If the annular groove is bounded radially outward by an outer annular collar and bounded radially inward by a lower frusto-conical portion of the top of the cartridge facing the cartridge main part, the present invention Is preferable. By making the upper part of the cartridge into a conical conical shape, it is possible to arrange intake openings, slits, and the like for escaping gas for liquid or air. In this case, the liquid to be constantly washed can flow from the area above the sealing lip to the side surface of the upper part of the cartridge.
[0016]
The present invention will be described repeatedly with reference mainly to a system in which gravity acts. Therefore, the terms “top” and “bottom” are used. However, arrangements with pressure acting systems are also envisaged, in which case the axis of the cartridge can be set to be inclined or transverse to the vertical direction. However, the remainder of the specification will continue to refer to the top of the top of the cartridge, which means the part facing the liquid that will be flowed in or out.
[0017]
The height of the sealing lip measured from the bottom of the annular groove in the direction of the protruding sealing lip is lower than the corresponding height of the outer annular collar and tapers as it is separated from the bottom of the annular groove when viewed in cross section. When designed to form a shape, it is particularly suitable for the present invention. The former feature serves to enhance the protection of the sealing lip. However, the basic protective space is already formed by the entire area above the annular groove, in which case the upper end of this area of protection is the upper end of the above-mentioned frustoconical bottom at the top of the cartridge. The upper part of the cartridge has, for example, a frustoconical bottom and a subsequent conical upper part, that is, a frustoconical part having a diameter different from each other. In this case, the protective space is arranged in the region of the outer periphery of the frustoconical bottom and is defined by the upper free end of a relatively large annular collar. The second feature applies to different embodiments, and therefore the sealing lip is designed to form a cross-sectional taper from the bottom of the annular groove. That is, the base of the sealing lip is wider than the width of the upper free end of the sealing lip. Also, the height of the sealing lip is made sufficiently wider than the width of the base of the sealing lip. As a result of tapering the cross-sectional shape of the base of the annular groove, i.e. from the bottom to the top, the sealing lip becomes variable, which makes it possible to define the sealing force during operation very accurately. The taper design of the sealing lip is also advantageous from a manufacturing point of view. The reason is that the tapered sealing lip manufactured by injection molding is easy to remove from the mold.
[0018]
According to the present invention, when the sealing lip is made of the same base material or elastomer material as the upper part of the cartridge, it is preferable from the viewpoint of manufacturing. The top of the cartridge is well formed from polypropylene. However, elastomeric materials known in the injection molding art can be considered in forming the entire cartridge or part thereof.
[0019]
The present invention is also characterized in that a moving means for moving the cartridge relative to the outer portion in the axial direction is provided on the upper portion of the cartridge. This outer part is, for example, an opening at the bottom of the supply container. According to a preferred embodiment, a cartridge according to the invention is hermetically meshed with such an outer part, for example the inner edge of the opening, which is suitable when the cartridge moves relative to this outer part. During such movement, it is envisaged that the cartridge is inserted in the direction of the central axis of the outer part and hence from below the system on which gravity acts. A preferred embodiment combines such operation with rotation about the axis. By disposing the moving means on the cartridge according to the invention, a precisely defined movement can be performed during a specific operation of the cartridge. As a result, an accurate sealing force is defined and a hermetic seal between the cartridge and the lower opening of the container can be performed by a person who does not require special training.
[0020]
According to another preferred embodiment of the present invention, a guide groove as a moving means that is set at a predetermined inclination angle with respect to the bottom surface of the annular groove and opens in the inner radial direction is provided at least in the peripheral portion of the outer annular collar To place. For example, when the inside of the outer annular collar is viewed from the center, the guide groove extending so as to cross a part of the periphery of the inner side of the outer annular collar is viewed so as to open inward in the radial direction. If the entire circumference of the outer annular collar extends over 360 °, the perimeter corresponds to 20-330 °, preferably 60-180 °, more preferably about 90 °. In the latter case, four such peripheral portions and thus four guide grooves are provided.
[0021]
Assuming that the annular groove is flat, it is easily assumed that the guide groove can be set at the above angle with respect to the plane. As a result of the design of the guide groove of the outer annular collar in this way with respect to the ramp, as already explained, the cartridge moves in the direction of the central axis by rotation. Temporary movement is performed according to the gradient of the guide groove, that is, the inclination angle. The guide groove is defined in the downward direction (in the direction of the main part of the cartridge) by a “down slope”. In contrast, the guide groove is defined in the upward direction by an “uphill ramp”.
[0022]
According to the present invention, the insertion opening is disposed in the upper part of the guide groove so as to be further away from the main part of the cartridge, and the window is cut out over the entire thickness of the outer annular collar at the bottom opposite to the upper part. It is also suitable when arranged. The insertion opening serves to introduce a control protrusion on the outer side with respect to the rotation of the cartridge, and the window arranged on the opposite side allows the user to know the end state and sealing position by listening to the sound. In addition, the user can detect the control protrusion of the outer position at the end position through the window from the outside of the cartridge.
[0023]
An object of the present invention is to provide a device for purifying a liquid, comprising: a supply container having a bottom portion in which an opening is disposed; and a cartridge that can be filled with a purifying agent and seal the bottom portion of the container by a sealing means. An annular expandable sealing lip projecting from the bottom of the annular groove on the cartridge side in the direction of the container bottom, and an inner sealing ring projecting in the opposite direction on the container bottom side; This is solved by an apparatus characterized in that the diameter of the sealing ring is smaller than the diameter of the sealing lip. In practice, the device is envisaged with an outer part, here a container bottom with an opening, so-called inner sealing rings have a diameter larger than the diameter of the sealing lip. Basically, when the cartridge moves to the bottom of the container, it is always possible to seal it. However, as already explained, excessive flattening and rapid spread cause twists and bulges. According to the present invention, it is preferable that the diameter of the inner sealing ring arranged at the inner end of the container bottom is smaller than the diameter of the sealing lip. During the rotational insertion of the sealing lip into the sealing sheet of the inner sealing ring, a force is applied to the sealing lip so as to expand outward by increasing the diameter of the sealing lip.
[0024]
As already explained, the advantage of the expansion of the sealing lip is that it has a protective function. The reason is that the expandable sealing lip is protected by the annular groove of the cartridge.
[0025]
The cartridge according to the present invention can also be easily and continuously inserted into the container bottom by a user who does not require skill without special instruction. Even if the cartridge or supply container is not handled carefully, little damage is expected.
[0026]
This is facilitated by being placed at the container bottom at a predetermined distance in the radial direction from the concentrically adjacent inner sealing ring of a larger diameter outer fixation ring than the inner sealing ring. The outer fixing ring forms an annular groove that passes around the inner sealing ring by a predetermined distance and opens downward with respect to the cartridge. The outer fixing ring protects the surface of the inner sealing ring which is airtight against the sealing lip. Preferably, the surface is spherical. However, the ramp is sufficient to hermetically seal the sealing lip when inserted into the groove between the inner sealing ring and the outer fixation ring.
[0027]
The function of fixing the container bottom to the cartridge is also important. The reason is that, according to another aspect of the present invention, at least one cam projecting in the outer radial direction of a size that can slide relative to the guide groove provided in the cartridge is arranged on the outer fixing ring. Because it does. Thus, such a cam opens the bottom of the container assumed to be stationary and is inserted into the insertion opening of the guide groove by proper rotation of the cartridge, and as a result, by engaging with the guide groove, the cartridge becomes conical. It is pulled or pushed axially (in the direction of the central axis) by rotating relative to the bottom. That is, the cartridge is inserted or removed. The lower slope of the guide groove is used to take out the cartridge when the cartridge is moved and removed from the bottom of the container during rotation. The upper ramp serves to fit the cartridge.
[0028]
According to another preferred embodiment of the invention, when the groove between the inner sealing ring and the outer fixing ring is joined in the area of the protective cam by the support rib, the cam is well supported against the outer fixing ring. And firmly held against the bottom of the container. Preferably, the cam is characterized by a key color that is visible from outside the sealing end when the window reaches the bottom end of the guide groove.
[0029]
It is also effective to arrange the cam in the outer radial direction of the outer fixing ring. This is because it has a good cleaning ability. The container bottom, i.e. the outer locking ring at the bottom of the container with the cam, needs to be removed when the cleaning agent is used up and is less consumed than a cartridge that needs to be replaced or refilled with a new one. However, it is suitable when the material of the cam and the outer fixing ring is stable and has a good shape. The guide groove has a somewhat complicated shape compared to the cam, and therefore cleaning becomes more difficult. However, since the cartridge is changed after the processing agent is used up, it is not so serious that unwanted particles are mixed into the guide groove as compared with the position of the outer fixing ring. Cleaning of the guide groove is extremely easy.
[0030]
The shape of the cam of the outer fixation ring can be a knob, hemisphere or other protruding shape. An elongated cam is also suitable, in which case the longitudinal direction of the cam extends in the peripheral direction of the outer fixing ring. The length must be selected so that the cam always fits the insertion opening and therefore fits through the window. The elongated shape serves to stabilize the cam and provides the advantage that the cartridge cam can be rotated with relatively little force relative to the container bottom. The material used for the cartridge is, for example, polypropylene. The main part of the cartridge and the upper part of the cartridge can be formed by injection molding using this material. A radially fixed flange extends at the upper end of the cap-shaped main portion of the cartridge and connects to the top of the cartridge below the bottom of the annular groove. This type of manufacture is simple and economical.
[0031]
Due to the advantages of the above configuration according to the present invention, a large sealing force can be obtained between the sealing members, the sealing lip not only being protected from mechanical external forces, but also from friction and other claims. A slight movement of the sealing surface is sufficient.
[0032]
In this way, an airtight 100% sealing of the supply container space for the liquid to be processed and the space between the upper side or outside and inside of the cartridge is ensured. The cleaning agent can eliminate bacteria and kill it, resulting in a bacteria-free liquid.
[0033]
When the guide groove ramp has an appropriate height, a user-friendly force can be generated. As a result, airtight fastening is performed, and the cartridge can be removed from the airtight fastening.
[0034]
The cartridge shown in FIG. 1 generally denoted by reference numeral 1 is composed of a cartridge upper portion 2 and a cartridge main portion 3 disposed below the cartridge upper portion 2.
[0035]
A supply container 4 having a bottom 5 and an opening 6 located in the bottom 5 is shown in the space above the cartridge 1 in FIG. First, the cartridge 1 will be described. The cartridge main portion 3 has a cup shape, and the cartridge main portion 3 has a discharge port, for example, a discharge sleeve, at a bottom portion that is not visible in FIG. It is assumed that the cartridge main part 3 holds a particle-shaped ion exchanger mixed with a cleaning agent, for example, activated carbon. The intake of the cartridge upper part 2 is also not shown. The intake may be in the form of a plurality of intake slits arranged in an annular shape. As a result, the particulate material can be held by a discharge sleeve (not shown) and an intake port at the top of the cartridge.
[0036]
A fixing flange 7 extending in the radial direction shown in FIGS. 1 and 6 is arranged at the upper end of the cartridge main part 3. The upper side of the fixed flange 7 surrounding the periphery of the cartridge main part 3 in an annular shape is a flat surface. The cartridge upper portion 2 is supported by an annular lower bottom portion 8 that becomes an edge of the cartridge main portion 3, and the lower bottom portion 8 is joined to the side surface of the cartridge main portion 3. After joining, it is indicated by reference numeral 9 in FIG.
[0037]
A cartridge top 2 having a sealing means that can be sealed and meshed, corresponding to the sealing means on the container bottom 5, is particularly useful in the present invention. The cartridge upper part 2 is composed of a lower flash conical part 10 having a larger diameter than the dome 12 disposed on the annular wall 11. Generally, the bottom 8 of the annular groove denoted by reference numeral 14 is an edge of the main part of the cartridge at the lower end of the upper part 2 of the conical cartridge. The bottom 8 is substantially flat and is arranged in parallel with the fixing flange 7. The surface formed by the bottom 8 of the annular groove 14 is orthogonal to the central axis. In the illustrated embodiment, the supply container 4 and the cartridge 1 having the opening 6 are rotationally symmetric with respect to this same central axis 13. The annular groove 14 is radially bounded on the outside by an outer annular collar 15. A concentrically expandable sealing lip 16 projects from the bottom 8 of the annular groove 14 between the lower flush conical portion 10 of the cartridge top 2 and the outer annular collar 15. From the drawing, it can be seen that the sealing lip 16 is designed to taper upward as it moves away from the bottom 8 of the annular groove 14. The annular groove 14 opens upward, that is, away from the cartridge main part 3. The sealing lip 16 is arranged in the center of the annular groove 14 or on either side. As apparent from FIG. 2, the sealing lip 16 is arranged closer (with a narrower interval) than the lower flush conical portion 10 of the upper cartridge portion 2.
[0038]
As apparent from FIG. 4, the height h of the protruding sealing lip 16 is made smaller than that of the outer annular collar 15. In the cross-sectional view of FIG. 4, the annular collar is clearly thinned at positions V and VI of FIGS. 5 and 6, but a height ratio of 1: 2 is preferred.
[0039]
A moving means is provided on the cartridge 1, and a guide groove 17 is arranged in the outer annular collar 15. The foundation of the groove is the remaining outer wall of the outer annular collar 15. The guide groove 17 is opened radially inward. As is apparent from FIG. 1, as a result of cutting out a part of the cartridge 1, the outer annular collar 15, that is, the inside of the guide groove 17 can be visually observed. FIG. 3 shows the development of the drawing plane across the periphery of the outer annular collar 15. The observer is located between the sealing lip 16 and the outer annular collar 15. When viewed from the top to the bottom of the cartridge 1 in the direction of the central axis 13, the broken line 21 in FIG. 2 along the arc indicates the position of the cross section of FIG. 3, that is, the position of the person viewing the cross section of FIG. The bottom 8 of the annular groove is shown in cross section, and the annular inner surface of the outer annular collar 15 is shown over approximately 1/4 of the circumference of the annular collar 15.
[0040]
It is clear from FIG. 2 that the periphery of the outer annular collar 15 is divided into four sections, each periphery corresponding to about 90 °. The development shown in FIG. 3 is shown at 4 × 90 ° inside. Thus, in describing the present invention, it is sufficient to merely show and describe the periphery corresponding to an angle of 90 °. The other three peripheral portions of the annular collar 15 have the same design.
[0041]
A guide groove 17 that opens inward in the direction of the central axis 13 toward the observer is set with a β inclination angle with respect to the plane of the bottom 8 of the annular groove 14. Therefore, the insertion end of the guide groove 17 as shown on the left side of FIG. 3 is higher than the holding end or engagement end on the right side of the guide groove disposed on the opposite side, and is separated from the bottom 8 of the annular groove 14. is doing. At the meshing end, the outer annular collar 15, that is, the outside in the radial direction can be seen through the window 18. This is also apparent from FIG. 1 at the position of the window 18 in the annular collar 15. In the region of the window 18, the guide groove 17 is made bottomless and the window passes through the entire thickness D (FIG. 6) of the outer annular collar 15. The guide groove 17 having the insertion opening 19 starts at the upper end spaced from the cartridge main part 3. This is in the form of a funnel with two lateral spherical surfaces 20 shown as inclined intake surfaces 20 to show other embodiments. The embodiment of FIG. 3 is shown in the direction of the central axis 13 shown in FIG. As shown, a relatively wide spherical intake surface 20 can be seen, followed by an insertion opening 19 and a relatively thin intake surface 20 in a counterclockwise direction. The guide groove 17 actually starts at a relatively thin intake surface, ie under the intake gradient 20, continues as shown by the broken line in FIG. 2 and ends at the window 18.
[0042]
FIG. 3 shows three cross sections by allowing the guide groove 17 to be further clarified in cooperation with FIGS. 4-6. 4 corresponds to the sectional line IV-IV in FIG. Parallel to the outer annular collar 15, the insertion opening 19 opens from top to bottom between the lower ramps 22 of the guide groove 17. However, the person referring to FIG. 3 cannot visually see the sealing lip 16 arranged radially toward the center (center axis 13). The observer generally attaches the reference numeral 23 and views only the outer portion hatched downward while forming a right angle from above in FIGS.
[0043]
The cross section of FIG. 5 is a cross section along the line V-V of FIG. Here, the guide groove 17 is clearly indicated by two horizontal broken lines. A guide groove 17 is disposed between them. The upper ramp 24 can be visually observed outside the lower ramp 22. The lower ramp 22 also belongs to the bottom 8 of the annular groove 14. A slit 25 can be seen between the radially outer end of the lower ramp 22 (on the left side of FIGS. 4-6) and the reduced thickness portion 15 ′ of the annular collar 15. The slit 25 simply improves the removal from the molding during the production of the plastic member by injection molding.
[0044]
The sectional view of FIG. 6 will be described through the window 18. The distance of the lower slope 22 from the bottom surface of the bottom portion 8 of the annular groove 14 decreases sequentially from the position IV to the position VI through the position V. This corresponds to the inclination angle β of the guide groove 17 extending downward from the insertion opening 19 in FIG. 3 so as to be close to the bottom portion 8 in the right direction.
[0045]
All the portions that contact the guide groove 17 as the moving means can be confirmed on the side surface of the cartridge, particularly 17-20, 22 and 24.
[0046]
The sealing means at the bottom 5 of the supply container 4 is interlocked with the three sealing means on the side surface of the cartridge.
[0047]
The opening 6 of the container bottom 5 has already been described with reference to FIG. In particular, the inner sealing ring 26 shown in FIGS. 4-6 extends in the direction of the central axis 13 on the circular end inside the opening 6. In these drawings, the bottom 5 of the container 4 is partially cut away. The innermost lip in the radial direction is an inner sealing ring 26 that protrudes downward in the container bottom 5 and in the direction of the central axis 13. From the drawing, it is found that the diameter of the inner sealing ring 26 of the present embodiment is equal to or smaller than the diameter of the sealing lip 16. In this way, the radially uppermost end 27 on the uppermost side of the inner sealing lip 26 is in line contact with the spherical sealing surface 28 of the inner sealing ring 26 and can be hermetically engaged as shown in FIG. I can do it. Moving from FIGS. 4 and 5 to FIG. 6, a slight shift of the sealing lip 16 is equivalent to an increase in diameter. In other words, the sealing lip 16 expands.
[0048]
When the cartridge 1 is placed on the supply container 4 and the state of the purification device of FIG. 1 is examined before it is hermetically connected, the expandable sealing lip 16 moves in the direction 29 of the central axis 13 to the bottom 8 of the annular groove 14. The inner sealing ring 26 projects in the reverse direction 30, ie along the central axis 13, on the container bottom 5 side. The directions 29 and 30 are located parallel to the central axis 13 and to each other.
[0049]
There is an outer fixing ring 31 which is concentrically spaced radially from the inner sealing ring 26 and which has a larger diameter than the sealing ring 26 on the container bottom 5. As a result, the inner sealing ring 26 and the outer safety ring 31 arranged at a predetermined distance form a groove 32 that extends in the direction 30 of the bottom 5 toward the cartridge and opens downward in the direction 30. .
[0050]
Four cams 33 projecting outward in the radial direction are arranged on the outer fixing ring 31. Each of these cooperates with one of the four guide grooves 17. In describing the present invention, it is sufficient to describe only a pair of moving means, namely the cam 33 and the guide groove 17.
[0051]
The cross section according to FIGS. The depth and length of the cam 33 are set so as to partially pass through the insertion opening reaching the position of the window 18 so that it can be confirmed from the position shown in FIG. In this way, the cam 33 shown on the outside can be viewed from the outside of the outer annular collar 15 at the fastening position corresponding to the sealing position, that is, the holding position (FIG. 6).
[0052]
The groove 32 between the inner sealing ring 26 and the outer fixing ring 31 is connected in the region of the protruding cam 33 by the support rib 34. Since the cross section is set in the visual line “in front” of the center of the cam 33, the support rib 34 can be confirmed in FIGS. 4-6.
[0053]
The initial state during operation is shown in FIG. The user passes the four cams 33 through the four insertion portions 19 and rotates the cartridge 1 with respect to the bottom portion 5 in which the supply container 4 is considered to be stationary. When the cartridge 1 is viewed from above in the direction of the arrow 30 through the opening 6 in the bottom portion 5, the cartridge 1 is rotated counterclockwise, and thereby each cam 33 is slid under the guide groove 17. A position V is reached in the middle of the height direction. In FIG. 5, the outer annular collar 15, ie the cam 33 engaged under the upper ramp 24 can be seen. In FIG. 5, when proceeding further inward in the radial direction, it can be confirmed that the uppermost inner edge 27 of the sealing lip 16 directly contacts the spherical surface 18 of the inner sealing ring 26 and is in a bending position. . The sealing lip 16 begins to expand. When the cartridge 1 continues to rotate by the user, the cam 33 slides further downward and goes straight to the guide groove 17 until it reaches the window 18 and is held there. This state is shown in FIG. Further, when proceeding radially inward, the expanded sealing lip 16 sealed and engaged with the spherical surface 28 of the inner sealing ring 26 can be seen.
[0054]
The release operation is executed by performing the reverse of the above operation.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a supply container shown on the upper side having a bottom part and an opening positioned thereon, and a cartridge shown on the lower side with a predetermined space.
FIG. 2 is a plan view of a cartridge with a relatively thick annular line showing a sealing lip at the top.
FIG. 3 shows the development of the periphery of the outer annular collar corresponding to an angle of approximately 90 °.
4 is a cross-sectional view taken along line IV-IV in FIG. 3;
FIG. 5 is a cross-sectional view taken along line VV in FIG. 3;
6 is a cross-sectional view taken along line VI-VI in FIG. 3 in which a part of the cartridge is also indicated by a broken line.
[Explanation of symbols]
1 cartridge
2 Cartridge top
3 Main parts of cartridge
4 Supply container
5 Container bottom
6 Bottom opening
7 Fixed flange
8 Bottom of cartridge top
9 joints
10 Lower flush conical part on the upper part of the cartridge
11 annular wall
12 Dome
13 Center axis
14 annular groove
15 Outer annular groove
16 Sealing lip
17 Guide groove
18 windows
19 Insertion opening
20 Side surface
21 Cross section indicated by broken line
22 Lower slope
23 Outside
24 Upper inclined part
25 slits
26 Inner sealing ring
27 Inner edge
28 Sealing surface
29 Upward direction of the sealing lip (center axis direction)
30 Lower direction of the sealing lip (center axis direction)
31 Fixing ring
32 grooves
33 cams
34 Support rib

Claims (11)

  A cartridge (1) for purifying flowing liquid, the cartridge upper part (2) having at least one intake opening, and a seal for sealing between the cartridge upper part (2) and the supply container (4) A cartridge having a member (16) and a cartridge main part (3) having a side wall and an outlet, and the cartridge main part (3) holds a cleaning agent. An annular groove (14) that opens away from the main part (3) is provided at a position adjacent to the cartridge main part (3), and the sealing member (16) is closed and annular and expandable. The sealing lip (16) is characterized in that the sealing lip (16) protrudes while being fixed to the bottom (8) of the annular groove (14). Cartridge that.   The annular groove (14) delimits the outer radial direction by an outer annular collar (15) and the lower flush conical part (10) of the cartridge upper part (2) facing the cartridge main part (3). The cartridge of claim 1, wherein the cartridge defines an inner radial boundary. The annular groove (14) is bounded radially outward by an outer annular collar (15 ) and measured from the bottom (8) of the annular groove (14) in the direction of the protruding sealing lip (16). the height of the sealing lip (16) which was a (h), the lower than the corresponding height of the outer annular collar (15) (H), said sealing lip (16), the annular groove when viewed in cross section ( 14. The cartridge according to claim 1, wherein the cartridge is designed so as to form a tapered shape as it is separated from the bottom part of the bottom part.   The cartridge according to any one of claims 1 to 3, wherein the sealing lip (16) is made of the same base material or elastomer material as the cartridge upper part (2).   Moving means (17-20, 22, 24) for relatively moving the cartridge (1) and the supply container (4) in the direction of the central axis (13) is provided on the cartridge upper part (2). The cartridge according to any one of claims 1 to 4, wherein: Predetermined angle of inclination relative to the bottom (8) of the annular groove (14) (beta) with the set, the guide grooves (17) as a moving means for opening inwardly radially, said outer annular collar (15) The cartridge according to claim 2 , wherein the cartridge is disposed at least on an inner periphery. The cartridge main portion (3), and place the insertion opening (19) in the upper part of the guide groove (17) as further away than the annular groove (14), said guide groove (17) that faces the top a cartridge according to claim 6 of the engagement end, and characterized in that a said outer annular collar (15) of the outright over the entire thickness (D) devoid window (18). A liquid comprising a supply container (4) having a bottom with an opening (6) and a cartridge (1) filled with a purifier and capable of sealing the bottom (5) of the container by sealing means. In the purifying apparatus, the sealing means is closed on the side of the cartridge (1) and protruding in a state of being fixed to the bottom (8) of the annular groove (14) in the direction (29) of the container bottom (5). annular having an expandable sealing lip (16), wherein the side of the container bottom (5), an inner sealing ring which projects in the opposite direction (30) relative to the direction (29) of the container bottom (5) (26), wherein the diameter of the sealing ring is smaller than the diameter of the sealing lip (16).   An outer fixing ring (31) having a diameter larger than the diameter of the inner sealing ring (26) concentrically adjacent to the container bottom (5) at a predetermined distance (a) in the radial direction from the inner sealing ring (26) 9. The device according to claim 8, wherein the device is arranged. Wherein the cartridge at least one projecting cam which projects outwardly radially sized to slide relative to the guide groove provided in (1) (33) was placed on the outer fixed ring (31) The apparatus according to claim 9 .   A support rib (34) is provided in a region where the protruding cam (33) is disposed in a groove (32) between the inner sealing ring (26) and the outer fixing ring (31). The device according to claim 10.

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