CN214399920U - Reverse osmosis filter element group spare and purifier that has it - Google Patents

Abstract

The utility model provides a reverse osmosis filter element group spare and purifier that has it, reverse osmosis filter element group spare includes the casing and holds the reverse osmosis filter element in the casing, the casing has dense mouth, reverse osmosis filter element group spare still includes the dense water cover, dense water cover covers on the dense water play water end of reverse osmosis filter element, the dense water covers and is provided with the through-hole, the through-hole intercommunication is between dense water play water end and dense mouth, the last articulated shutoff piece that has of dense water cover, the shutoff piece is used for only rotating to the open position of opening the through-hole by the shutoff position of shutoff through-hole under forward hydraulic effect. Thus, when the reverse osmosis filter element assembly stops producing water, the concentrate outside the concentrate cover can be separated from the pure water inside the concentrate cover, i.e., only a small amount of concentrate that can exist in the space between the concentrate cover and the concentrate outlet end and the interlayer between the membrane bags can contact the pure water. Therefore, the total amount of ions which can be diffused into pure water in the reverse osmosis filter element component can be effectively reduced. Compared with the prior art, the ion concentration of the first cup of water taken by the user can be effectively reduced.

Description

Reverse osmosis filter element group spare and purifier that has it

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to reverse osmosis filter element group spare and purifier that has it.

Background

With the pursuit of quality of life by the public, the quality of drinking water is beginning to attract much attention. Reverse osmosis water purifiers are becoming more popular because the purified water produced by them is fresher, more sanitary and safer.

The raw water has higher TDS (total dissolved solids) more, and the reverse osmosis filter element component can block a large amount of ions in the raw water before the reverse osmosis membrane when filtering, so that the TDS of the water passing through the reverse osmosis membrane meets the standard of direct drinking water. Meanwhile, the reverse osmosis filter element component can also discharge high-TDS concentrated water according to a certain proportion when preparing direct drinking water.

However, in a shutdown state, a small amount of concentrated water and raw water still exist in the reverse osmosis membrane filter core assembly. The TDS of concentrated water and raw water is higher than the pure water in the reverse osmosis filter element group spare far away, and the back of shutting down for a long time, the ion in raw water and the concentrated water can be to the pure water of membrane back purification in the diffusion, leads to the user when next water intaking, and the water that connects to get will have higher TDS, influences user's use and experiences.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems of the prior art, according to one aspect of the present invention, a reverse osmosis cartridge assembly is provided. The reverse osmosis filter element group spare includes the casing and holds the reverse osmosis filter core in the casing, and the casing has dense mouth of a river, and reverse osmosis filter element group spare still includes the dense water cover, and the dense water cover covers on the dense water play water end of reverse osmosis filter core, and the dense water covers and is provided with the through-hole, and the through-hole intercommunication is between dense water play water end and dense mouth of a river, and the last articulated shutoff piece that has of dense water cover, shutoff piece are used for only rotating to the open position of opening the through-hole by the shutoff position of shutoff through-hole under forward hydraulic effect.

The ion concentration of the concentrated water generated in the process of producing water by the reverse osmosis filter element is far higher than that of the raw water, and the ion concentration of the pure water collected in the membrane bag of the reverse osmosis filter element is the lowest after the filtration. From this, the thick water cover that covers to establish to have the shutoff piece on thick water play water end can separate most thick water and pure water in the reverse osmosis filter element group spare, promptly, only the space between thick water cover and the thick water play water end and the intermediate layer between the membrane bag in can exist a small amount of thick water still can contact with the pure water, and thick water outside the thick water cover is then isolated with the pure water owing to the effect of shutoff piece. The amount of concentrated water stored in the space and the interlayer is much less than the total amount of concentrated water outside the concentrated water cover, so that the total amount of ions which can be diffused into pure water in the reverse osmosis filter element assembly can be effectively reduced. Therefore, even under the condition that the reverse osmosis filter element assembly is in standby for a long time, compared with the prior art, the ion concentration of the first cup of water taken by a user can be effectively reduced.

The closure element and/or the concentrate hood are/is provided with a restoring element for exerting a force on the closure element in the direction of the closure position. The blocking piece and the thick water cover are provided with a resetting piece between, and the resetting piece is used for applying force towards the blocking position to the blocking piece.

The reverse osmosis filter element assembly with the piece that resets can make the shutoff piece rotate to the shutoff position under the less condition of no forward water pressure or forward water pressure to further the shutoff through-hole, cover the dense water outside the dense water cover with dense water and cover to interior pure water isolated, prevent that the dense water in the reverse osmosis filter element assembly from being by dense water mouth to dense water outlet end reverse refluence, effectively reduced the ion total amount of diffusion in to the pure water.

Illustratively, the restoring member includes a magnetic element for generating a magnetic attraction force between the blocking member and the concentrate cover.

By using the magnetic elements as the reset pieces, the magnetic force between the magnetic elements can be used as the reset force to enable the plugging pieces to rotate towards the plugging position. Compared with a spring or a torsion spring as a reset part, the assembly cost of each part can be reduced, and the space is saved in the reverse osmosis filter element assembly; and also has a long service life, and is not easy to lose efficacy even if soaked in water for a long time.

Exemplarily, the magnetic element comprises a first magnetic element arranged on the plugging piece and a second magnetic element arranged on the concentrated water cover, wherein a first mounting groove is formed in the concentrated water cover, a second mounting groove is formed in the plugging piece, the first magnetic element is arranged in the first mounting groove, and the second magnetic element is arranged in the second mounting groove.

Like this, when producing magnetic attraction between shutoff piece and dense water cover, the shutoff piece just can be plugged the through-hole shutoff, can also avoid two magnetic element to drop in following respective mounting groove because of magnetic attraction simultaneously. The reverse osmosis filter element assembly with the reverse osmosis filter element structure is simple in structure, convenient to assemble and durable.

The concentrated water cover is provided with a limiting piece for limiting the blocking piece to pivot between the opening position and the blocking position.

Through setting up the locating part, can prevent that the shutoff piece when rotating, cross the open position and can not reset to the shutoff position automatically or under reverse hydraulic effect to influence reverse osmosis filter element group spare and prevent the effect of dense water refluence.

Exemplarily, be provided with the recess on the locating part, be provided with the arch on the shutoff piece, the arch stretches into in the recess, and the arch supports the relative lateral wall that leans on the recess respectively when the shutoff piece is located open position and shutoff position.

This arrangement may utilize the side walls as rotational stops for the closure. The reverse osmosis filter element assembly with the reverse osmosis filter element structure is simple in structure and easy to realize.

A seal is also provided between the concentrate hood and the closure piece.

The sealing element has the functions of improving the sealing property of the plugging piece when the plugging piece is positioned at the plugging position and improving the capability of preventing the backflow of concentrated water when the plugging piece is positioned at the plugging position.

Illustratively, a seal groove is disposed around the through hole, and a seal is disposed in the seal groove.

The sealing groove has the function of providing positioning for the sealing element, and the sealing element is prevented from being displaced under the impact of water flow, so that the sealing effect is reduced. And the mode of fixing the sealing ring through the sealing groove is simply implemented.

Illustratively, a rotating shaft is arranged on one of the concentrate cover and the plugging piece, and a shaft hole is arranged on the other of the concentrate cover and the plugging piece, the rotating shaft is arranged in the shaft hole, the rotating shaft and the shaft hole are matched when the plugging piece is in the plugging position, and the cross section of the rotating shaft is in a non-circular shape and used for generating a resetting force for rotating the plugging piece to the plugging position.

The blocking piece with the arrangement can play a role of a resetting piece for returning the blocking piece to the blocking position. Based on this, the technical staff in the field can not set up the piece that resets in reverse osmosis filter element group spare as required additionally to reduce the space occupation in the reverse osmosis filter element group spare, reduce the cost of product.

Illustratively, a rotating shaft is arranged on one of the concentrate cover and the plugging piece, and a shaft hole is arranged on the other, the rotating shaft is arranged in the shaft hole, the rotating shaft and the shaft hole are matched when the plugging piece is in the plugging position, the cross section of the rotating shaft has a first size along the axial direction of the filter element and a second size along the direction perpendicular to the axial direction, and the first size is smaller than the second size.

Because the pivot has less first size along the axial direction of filter core, and has great second size in the direction of this axial direction of perpendicular to for the whole high less at reverse osmosis filter element group spare axial of shutoff piece and dense water cover, thereby can reduce the space that the shutoff piece took up in reverse osmosis filter element group spare. Because the space occupied by the plugging piece is reduced, relatively, the space between the plugging piece and the shell can be properly increased, so that a concentrated water channel in the reverse osmosis filter element assembly is more smooth, the flow speed of concentrated water can be accelerated, and the outlet of the concentrated water is smoother. Moreover, still for directly adopting the design of this application in current reverse osmosis filter element group spare provides the application space, can seamless joint even, directly install shutoff piece and dense water cover in current reverse osmosis filter element group spare, can avoid upgrading the transformation, reduce cost to the production line from this. On the other hand, because the space occupied by the plugging piece is reduced, the space between the concentrate cover and the shell can be reduced, thereby reducing the stock of the concentrate in the reverse osmosis filter core component. The stock of the concentrated water is reduced, and the ion quantity capable of polluting the pure water in the reverse osmosis filter element is also reduced. Therefore, the volume of the reverse osmosis filter element assembly can be reduced, the cost is saved, the possibility of the diffusion of ions in the concentrated water to the pure water can be reduced, and the water taking safety of a user is improved.

Illustratively, the shaft is elliptical in cross-section. The rotating shaft with the oval cross section is easy to process, and meanwhile, the rotating shaft is convenient to install in the shaft hole.

Illustratively, the concentrate cover comprises a cover body and a hook part, the cover body is covered on the concentrate outlet end of the reverse osmosis filter element, the first end of the hook part is connected to the outer surface of the cover body, the second end of the hook part is spaced from the cover body, the hook part and the outer surface of the cover body enclose to form an axle hole, the long axis of the ellipse is parallel to the outer surface of the cover body, and the distance between the second end of the hook part and the cover body is smaller than the short axis of the ellipse.

The reverse osmosis filter element group spare that has this setting can be convenient for install the pivot of shutoff piece to the shaft hole in, both can not cause the damage to crotch portion because of exerting oneself too greatly during the installation, can also avoid the pivot to break away from out from the shaft hole to the pivot can also rotate in the shaft hole.

According to another aspect of the present invention, there is provided a water purifier, comprising any one of the above reverse osmosis filter element assemblies.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a cross-sectional view of a reverse osmosis cartridge assembly according to an exemplary embodiment of the present invention;

FIG. 2 is an assembly view of the concentrate cap and closure of FIG. 1;

FIG. 3 is a cross-sectional view of the assembly view of FIG. 2;

FIG. 4 is an angled perspective view of the concentrate hood of FIG. 2; and

fig. 5 is a perspective view of another angle of the concentrate cover of fig. 2.

Wherein the figures include the following reference numerals:

100. a reverse osmosis filter element assembly; 200. a housing; 201. a dense water port; 300. a reverse osmosis filter element; 301. a concentrated water outlet end; 400. a concentrate cover; 401. a through hole; 402. a first mounting groove; 403. a sealing groove; 410. a cover body; 420. a hook portion; 421. a first end; 422. a second end; 500. a blocking member; 501. a second mounting groove; 502. a protrusion; 503. a rotating shaft; 700. a limiting member; 701. and (4) a groove.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

The utility model provides a reverse osmosis filter element group spare 100, as shown in fig. 1, including casing 200 and the reverse osmosis filter element 300 who holds in casing 200, casing 200 has dense mouth of a river 201, has dense water outlet 301 on the reverse osmosis filter element 300. The reverse osmosis filter element assembly 100 further comprises a concentrate cover 400, and the concentrate cover 400 covers the concentrate outlet end 301 of the reverse osmosis filter element 300. The concentrate cover 400 is provided with a through hole 401, and the through hole 401 is communicated between the concentrate outlet end 301 and the concentrate inlet 201. In the process of producing water by the reverse osmosis filter element 300, concentrated water can be discharged from the concentrated water outlet end 301 and then is discharged out of the reverse osmosis filter element assembly 100 through the through hole 401 and the concentrated water port 201 in sequence. Meanwhile, in the water purifier with the reverse osmosis filter element assembly 100, the concentrate inlet 201 can also be used for being connected with a water channel of the water purifier, so that the discharged concentrate can flow into the water channel of the water purifier. The concentrated water outlet end 301 of the reverse osmosis filter element 300 can be arranged at any position of the reverse osmosis filter element 300, and in one embodiment, if the reverse osmosis filter element 300 is a cylinder, the concentrated water outlet end 301 can be arranged at an end surface or a side surface; if the reverse osmosis filter element 300 is in a hollow column shape, the concentrated water outlet end 301 can be arranged on the outer circumferential surface, the inner circumferential surface or the end surface. In short, the position of the concentrate outlet 301 can be set according to the specific structure of the reverse osmosis filter element 300, and the concentrate cover 400 can be set according to the position of the concentrate outlet 301.

The dense water cover 400 is provided with a plugging piece 500, and the plugging piece 500 is hinged with the dense water cover 400. The blocking member 500 is adapted to be rotatable from the blocking position to the open position only under the influence of positive water pressure. The forward water pressure refers to the water pressure generated by the booster pump when the reverse osmosis filter element assembly normally produces water. The positive water pressure is from the concentrate outlet end 301 to the concentrate outlet 201. Wherein, when the block piece 500 is in the block position, the through hole 401 is blocked, and when the block piece 500 is in the open position, the through hole 401 is opened. The block piece 500 can be rotated only by the push of the positive water pressure, so that the thick water is discharged through the through-hole 401. When the plugging member 500 is under the action of no forward water pressure, the plugging member 500 may rotate to the plugging position by the self gravity, the buoyancy in water or the acting force of the restoring member, thereby plugging the through hole 401. If reverse water pressure occurs in the reverse osmosis filter element assembly 100, that is, the water pressure direction is from the concentrate inlet 201 to the concentrate outlet 301, the reverse water pressure can keep the plugging member 500 at the plugging position to plug the through hole 401, so that the plugging member 500 can make the flow direction of the concentrate in the reverse osmosis filter element assembly 100 have directionality. The concentrate in the reverse osmosis filter core assembly 100 can only flow from the concentrate inlet 201 to the concentrate outlet 301, but can not flow reversely. The closure 500 functions as a one-way valve.

It is known that the ion concentration of the concentrated water generated during the water production process of the reverse osmosis filter element 300 is much higher than that of the raw water, and the ion concentration of the pure water collected in the membrane bag of the reverse osmosis filter element 300 after the filtration is the lowest. Therefore, the concentrated water cover 400 with the plugging piece 500 is covered on the concentrated water outlet end 301 to separate most of the concentrated water in the reverse osmosis filter core assembly 100 from the pure water, namely, only a small amount of concentrated water which can exist in the space between the concentrated water cover 400 and the concentrated water outlet end 301 and the interlayer between the membrane bags can still be contacted with the pure water, and the concentrated water outside the concentrated water cover 400 is isolated from the pure water due to the effect of the plugging piece 500. The amount of concentrate stored in the space and the interlayer is much less than the total amount of concentrate outside the concentrate cover 400, so that the total amount of ions that can diffuse into pure water in the reverse osmosis filter element assembly 100 can be effectively reduced. Therefore, even under the condition that the reverse osmosis filter element assembly 100 is standby for a long time, compared with the prior art, the ion concentration of the first cup of water received by the user can be effectively reduced.

Illustratively, the reverse osmosis cartridge assembly 100 may include a reset (not shown). In one embodiment, a reset piece is provided on one or both of the block piece 500 and the concentrate cap 400. The above piece that resets can be magnet, and through the magnetic attraction that magnet produced, the piece that resets can exert the power that resets towards the shutoff position to shutoff piece 500. In another embodiment, a restoring member may be provided between the blocking member 500 and the concentrate cover 400. The above reset piece can be a spring or a torsion spring and the like, the end part of the spring or the torsion spring can be respectively connected with the plugging piece 500 and the concentrated water cover 400, and the spring or the torsion spring can apply reset force towards the plugging position to the plugging piece 500 through elastic deformation.

The reverse osmosis filter element assembly 100 with the resetting piece can enable the plugging piece 500 to rotate towards the plugging position under the condition that forward water pressure is not available or the forward water pressure is small, and further the through hole 401 is plugged, so that concentrated water outside the concentrated water cover 400 is isolated from the concentrated water cover 400 to pure water inside, the reverse backflow of the concentrated water in the reverse osmosis filter element assembly 100 from the concentrated water port 201 to the concentrated water outlet end 301 is prevented, and the total amount of ions diffused into the pure water is effectively reduced.

In one embodiment, the reset element may include a magnetic element. The magnetic element is used to generate magnetic attraction between the closure 500 and the concentrate cover 400. The magnetic element includes at least an element capable of generating a magnetic field, such as a magnet; the magnetic element may also include a substance, such as iron, nickel, cobalt, etc., that is subject to a magnetic field and may produce magnetism. By using the magnetic elements as the reset member, the blocking member 500 can be rotated toward the blocking position by using the magnetic force between the magnetic elements as the reset force. Compared with a spring or a torsion spring as a reset part, the assembly cost of each part can be reduced, and the space is saved in the reverse osmosis filter element assembly 100; and also has a long service life, and is not easy to lose efficacy even if soaked in water for a long time.

In one embodiment, as shown in fig. 2 and 5, the magnetic elements may include a first magnetic element disposed on the closure 500 and a second magnetic element disposed on the concentrate cap 400. The concentrate cover 400 is provided with a first mounting groove 402, and the plugging member 500 is provided with a second mounting groove 501. A first magnetic member may be disposed in the first mounting groove 402 and a second magnetic member may be disposed in the second mounting groove 501. Wherein at least one of the first magnetic element and the second magnetic element is an element capable of generating a magnetic field, such as a magnet. Preferably, one of the magnets is a magnet, and the other is an iron sheet, so that the cost can be reduced, and in addition, the situation that two magnets are used and the polarities are reversed can be avoided. The first mounting groove 402 may be located on an end surface of the concentrate cover 400 facing away from the reverse osmosis filter element 300. The first magnetic element is sandwiched between the concentrate cover 400 and the reverse osmosis filter element 300, thereby serving as a fixing function. A second mounting groove 501 may be provided on the end face of the block piece 500 remote from the concentrate cover 400. Thus, when magnetic attraction is generated between the plugging piece 500 and the concentrated water cover 400, the plugging piece 500 can plug the through hole 401, and meanwhile, the two magnetic elements can be prevented from falling off from respective mounting grooves due to the magnetic attraction. The reverse osmosis filter element assembly 100 with the arrangement is simple in structure, convenient to assemble and durable.

Illustratively, as shown in fig. 2-4, a stopper 700 is disposed on the concentrate cover 400. The limiting member 700 is used to limit the pivoting of the blocking member 500 between the open position and the blocking position. The limiting member 700 may limit the maximum opening angle of the blocking member 500. In one embodiment, the stop member 700 may be a flap disposed on the concentrate cover 400 above the blocking member 500, which may prevent the blocking member 500 from rotating to a greater angle beyond the open position when the blocking member 500 is flipped over toward the open position under positive water pressure. By providing the stopper 700, the blocking member 500 can be prevented from passing the open position and not being automatically or being restored to the blocking position under the reverse water pressure when rotating, thereby affecting the function of the reverse osmosis filter element assembly 100 to prevent the reverse flow of the concentrated water.

In one embodiment, a groove 701 may be disposed on the limiting member 700. Alternatively, the stop 700 may protrude from the outer surface of the concentrate cover 400. The groove 701 may open towards the closure 500. The closure 500 may be provided with a protrusion 502. The protrusion 502 may be provided on a portion of the block piece 500 facing the stopper 700. The protrusion 502 may protrude into the groove 701. The height of the groove 701 is greater than the thickness of the protrusion 502, so that the protrusion 502 can move within the groove 701 with the rotation of the blocking member 500. The projections 502 abut against opposite side walls of the groove 701 when the closure 500 is in the open position and the closure position, respectively. The sidewall is used as a rotational stop for the closure 500. The reverse osmosis filter element assembly 100 with the arrangement is simple in structure and easy to realize.

A seal (not shown) is also provided, for example, between the concentrate hood 400 and the closure 500. In one embodiment, the sealing member may be a sealing ring, which may be disposed around the edge of the block piece 500, the sealing member being sandwiched between the concentrate cap 400 and the block piece 500 when the block piece 500 is in the blocking position. The sealing member functions to improve the sealing property of the plugging member 500 at the plugging position and to improve the ability of the plugging member 500 to prevent the reverse flow of the concentrated water at the plugging position.

Further, referring to fig. 4, a sealing groove 403 is provided around the through hole 401, and a seal 800 is provided in the sealing groove 403. The seal may be a gasket. The sealing groove 403 has the function of providing a positioning function for the sealing element, and the sealing element 800 is prevented from being displaced under the impact of water flow, so that the sealing effect is reduced. And the manner of fixing the seal ring by the seal groove 403 is simply implemented.

There are various ways in which the block piece 500 can be hinged to the thick water cover 400, and preferably, a rotation shaft 503 is provided on one of the thick water cover 400 and the block piece 500, and a shaft hole is provided on the other. The rotating shaft 503 is installed in the shaft hole. The structure is simple and small.

Based on this, in one set of embodiments, the rotating shaft 503 is adapted to the shaft hole when the plugging member 500 is in the plugging position, and the cross section of the rotating shaft 503 has a non-circular shape for generating the restoring force for rotating the plugging member 500 to the plugging position.

In the embodiment shown in fig. 2-4, the cross-section of the rotating shaft 503 is an ellipse, and the shaft hole has a shape adapted to the elliptical rotating shaft 503, for example, the inner surface of the shaft hole may be a curved surface having a C-shaped opening, and the shape in the C-shaped opening may be substantially elliptical. The two ellipses are concentric and the long shaft is positioned on the same straight line, and once the plugging piece 500 leaves the plugging position, the two ellipses can be mutually extruded to generate micro deformation, and the resetting force generated by the deformation forces the plugging piece 500 to rotate towards the plugging position, so that the effect of the resetting piece is achieved.

Alternatively, the cross-section of the rotating shaft 503 may have other shapes, such as a star shape, a triangle shape, a quadrangle shape, and the like. As long as the plugging piece 500 is in the plugging position, the rotating shaft 503 and the shaft hole can be adapted to each other and rotate to other directions to generate a certain restoring force.

Based on this, a person skilled in the art can set a reset element in the reverse osmosis filter element assembly 100 as needed, so as to reduce the space occupation in the reverse osmosis filter element assembly 100 and reduce the cost of the product. Preferably, the cross section of the rotating shaft 503 is elliptical, so that the rotating shaft 503 and the shaft hole are easy to machine, and the rotating shaft 503 can be conveniently installed in the shaft hole.

In another set of embodiments, the rotation shaft 503 is adapted to the shaft hole when the plugging member 500 is in the plugging position, and the cross section of the rotation shaft 503 may have a first dimension and a second dimension in two directions perpendicular to each other, wherein the first dimension is a dimension of the rotation shaft 503 along the axial direction of the filter cartridge 300. The first dimension is less than the second dimension. In this way, the height of the blocking piece 500 and the concentrate cover 400 in the axial direction of the reverse osmosis cartridge assembly as a whole can be reduced, so that the space occupied by the blocking piece 500 in the reverse osmosis cartridge assembly can be reduced. Because the space occupied by the plugging member 500 is reduced, relatively, the space between the plugging member 500 and the shell 200 can be properly increased, so that a concentrated water channel in the reverse osmosis filter element assembly 100 can be more smooth, the flow rate of concentrated water can be accelerated, and the outlet of the concentrated water is smoother. Moreover, still for directly adopting the design of this application in current reverse osmosis filter element group spare provides the application space, can seamless joint even, directly install shutoff piece 500 and dense water cover 400 in current reverse osmosis filter element group spare, can avoid upgrading the transformation, reduce cost to the production line from this. On the other hand, since the space occupied by the blocking member 500 is reduced, the interval between the concentrate cover 400 and the housing 200 can be reduced, thereby reducing the amount of concentrate in the reverse osmosis cartridge assembly. The amount of concentrated water stored is reduced, which reduces the amount of ions that can contaminate the pure water in the reverse osmosis cartridge 300. Therefore, the volume of the reverse osmosis filter element assembly can be reduced, the cost is saved, the possibility of the diffusion of ions in the concentrated water to the pure water can be reduced, and the water taking safety of a user is improved.

Illustratively, the thick water shield 400 includes a shield body 410 and a hook portion 420. The cover 410 covers the concentrate outlet end 301 of the reverse osmosis filter element 300. A first end 421 of the bent hook part 420 is connected to an outer surface of the cover 410, and a second end 422 is spaced apart from the cover 410. The bent hook part 420 and the outer surface of the cover body 410 surround to form a shaft hole, and the shaft hole is oval. The major axis of the ellipse is parallel to the outer surface of the shield 410 and the second end 422 of the hook 420 is spaced from the shield 410 a distance less than the minor axis of the ellipse. In this embodiment, the rotating shaft 503 is provided on the block piece 500. When the plug 500 is attached to the dense water cover 400, the long axis of the elliptical rotation shaft 503 may be inserted into the shaft hole in a horizontal posture, and when a force is applied, the hook portion 420 is deformed, and the rotation shaft 503 is fitted into the shaft hole. The reverse osmosis filter element assembly with the reverse osmosis filter element assembly can be used for conveniently installing the rotating shaft 503 of the plugging piece 500 into the shaft hole, the hook part 420 cannot be damaged due to excessive force during installation, the rotating shaft 503 can be prevented from being separated from the shaft hole, and the rotating shaft 503 can also rotate in the shaft hole.

According to another aspect of the utility model, still provide a purifier, include any kind of reverse osmosis filter element group spare above-mentioned.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (14)

1. The utility model provides a reverse osmosis filter element group spare, includes the casing and holds reverse osmosis filter core in the casing, the casing has dense mouth of a river, its characterized in that still includes the dense water cover, the dense water cover is in the dense water of reverse osmosis filter core goes out on the water end, be provided with the through-hole on the dense water cover, the through-hole intercommunication is in dense water goes out the water end with between the dense mouth of a river, the last articulated shutoff piece that has of dense water cover, the shutoff piece is used for only by the shutoff under forward hydraulic pressure the shutoff position of through-hole rotates to opening the open position of through-hole.

2. The reverse osmosis cartridge assembly according to claim 1, wherein a reset element is provided on the blocking element and/or the concentrate cover for applying a force to the blocking element towards the blocking position.

3. The reverse osmosis cartridge assembly of claim 2, wherein the reset member comprises a magnetic element for creating a magnetic attraction between the blocking member and the concentrate cover.

4. The reverse osmosis filter cartridge assembly of claim 3, wherein the magnetic elements comprise a first magnetic element disposed on the closure and a second magnetic element disposed on the concentrate cover, the concentrate cover having a first mounting slot disposed thereon, the closure having a second mounting slot disposed thereon, the first magnetic element disposed in the first mounting slot and the second magnetic element disposed in the second mounting slot.

5. The reverse osmosis cartridge assembly according to claim 1, wherein a reset member is provided between the blocking member and the concentrate cover, the reset member being adapted to apply a force to the blocking member towards the blocking position.

6. The reverse osmosis filter element assembly according to claim 1, wherein a stop is provided on the concentrate cover for limiting pivoting of the blocking member between the open position and the blocking position.

7. The reverse osmosis filter element assembly according to claim 6, wherein the retaining member is provided with a recess and the blocking member is provided with a projection extending into the recess, the projection abutting opposite side walls of the recess when the blocking member is in the open position and the blocking position, respectively.

8. The reverse osmosis cartridge assembly of claim 1, further comprising a seal between the concentrate cover and the plug.

9. The reverse osmosis filter element assembly of claim 8, wherein a seal groove is disposed about the through-hole, the seal being disposed in the seal groove.

10. The reverse osmosis filter element assembly of claim 1, wherein one of the concentrate cap and the blocking member is provided with a shaft and the other is provided with a shaft bore, the shaft being mounted in the shaft bore, the shaft fitting into the shaft bore when the blocking member is in the blocking position, the shaft having a non-circular cross-section for generating a restoring force for rotating the blocking member to the blocking position.

11. The reverse osmosis filter cartridge assembly of claim 1, wherein one of the concentrate cap and the block is provided with a shaft and the other is provided with a shaft bore, the shaft being mounted in the shaft bore, the shaft fitting into the shaft bore when the block is in the blocking position, the cross-section of the shaft having a first dimension along an axial direction of the filter cartridge and a second dimension along a direction perpendicular to the axial direction, the first dimension being less than the second dimension.

12. The reverse osmosis cartridge assembly of claim 10 or claim 11, wherein the shaft is elliptical in cross-section.

13. The reverse osmosis filter cartridge assembly of claim 12, wherein the concentrate cover comprises a cover body and a hook portion, the cover body covers the concentrate outlet end of the reverse osmosis filter cartridge, a first end of the hook portion is connected to an outer surface of the cover body, and a second end of the hook portion is spaced apart from the cover body, the hook portion and the outer surface of the cover body enclose the shaft hole, a major axis of the ellipse is parallel to the outer surface of the cover body, and a distance between the second end of the hook portion and the cover body is smaller than a minor axis of the ellipse.

14. A water purification machine comprising a reverse osmosis cartridge assembly according to any one of claims 1 to 13.

Images