CN212559695U

CN212559695U - Filter equipment of production pure water

Info

Publication number: CN212559695U
Application number: CN202020902266.6U
Authority: CN
Inventors: 万小缨
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-19
Anticipated expiration: 2030-05-25

Abstract

The utility model belongs to the technical field of water purification machines, in particular to a filter device for producing pure water, which comprises a filter flask, a composite filter element arranged in the filter flask, an upper cover of the filter flask arranged at the upper end of the filter flask, an upper cover of the filter element arranged in the filter flask and connected with the upper end of the composite filter element, and a lower cover of the filter element connected with the lower end of the composite filter element; the water inlet, the pure water port and the concentrated water port are arranged on the lower end plate of the filter flask; the composite filter element comprises a preposed filter element, a reverse osmosis filter element arranged in the preposed filter element and an active carbon filter element arranged between the preposed filter element and the reverse osmosis filter element; the lower end of the reverse osmosis filter element is communicated with the pure water port. Compared with the pure water or water purifying device in the prior art, the filtering device of the utility model has simple structure, simple manufacturing process and low cost; the composite filter element, the filter element upper cover and the filter element lower cover form a whole body, so that the replacement is convenient; the filter elements of all levels forming the composite filter element have consistent service life, can be replaced at one time and are convenient after sale; the water passing joint is few, and the water seepage risk is reduced.

Description

Filter equipment of production pure water

Technical Field

The utility model belongs to the technical field of water purification machine, especially, indicate a simple structure's filter equipment for on water purification machine.

Background

In view of the fact that drinking water is affected by environmental pollution and is difficult to meet the drinking standards, more and more consumers choose water purifiers for purifying tap water, and at present, various water purifiers, water purification machines and the like exist in the market, and such water purifiers adopt various filter elements and can filter and purify tap water. At present, a water purifier and the like adopt multi-stage filtration, such as three-stage filtration, five-stage filtration and the like, different filter elements are adopted at different positions and are connected in series, and the occupied volume is large, so that the whole water purifying equipment needs a large installation space, and the available places are limited; in order to solve the problem, the composite filter element with the different filter elements coaxially arranged in the multistage filtration is used for the water purifying device, the size is reduced, the size of the whole water purifying device is reduced, the composite filter element is convenient to be applied to more places, the water purifying device adopting the composite filter element at present is complex in structure and high in cost, the service lives of all stages of filter elements forming the composite filter element are different, the filter elements are difficult to replace, the joints are multiple, and the water seepage risk is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, an object of the present invention is to provide a filter device for producing pure water, which adopts the following technical solution:

a filter device for producing pure water comprises a filter flask, a composite filter element arranged in the filter flask, a filter flask upper cover arranged at the upper end of the filter flask, a filter element upper cover arranged in the filter flask and connected with the upper end of the composite filter element, and a filter element lower cover connected with the lower end of the composite filter element; the water inlet, the pure water port and the concentrated water port are arranged on the lower end plate of the filter flask and are communicated with the inside of the filter flask; the composite filter element comprises a preposed filter element, a reverse osmosis filter element and an active carbon filter element, wherein two ends of the preposed filter element are respectively connected with the upper filter element cover and the lower filter element cover; the lower end of the reverse osmosis filter element is communicated with the pure water port. The lower extreme at the filter flask is unified to each interface setting with filter equipment, and composite filter element forms a whole with filter core upper cover, filter core lower cover fixed connection back, and when the renew cartridge, open the filter flask upper cover of filter flask, take out composite filter element and abandon rather than the filter core upper cover, the filter core lower cover that are connected, the renew cartridge can, it is convenient to change, simple structure moreover, with low costs.

Preferably, the filter element lower cover is formed by integrally forming an inner cylinder and an outer cylinder coaxial with the inner cylinder, a sealing plate is arranged at the lower end of the outer cylinder, the sealing plate is vertically sleeved on the outer wall of the inner cylinder, the lower end of the inner cylinder protrudes out of the lower surface of the sealing plate, the lower end of the preposed filter element is arranged in the outer cylinder, the lower end of the reverse osmosis filter element is positioned in the inner cylinder, and a water outlet joint arranged at the lower end of the reverse osmosis filter element is positioned below the inner cylinder after penetrating through the inner cylinder.

Preferably, the inner surface of the lower end plate of the filter bottle is provided with a first connecting cylinder connected with the lower end of the inner cylinder, the first connecting cylinder is internally provided with a second connecting cylinder fixedly connected with the inner surface of the lower end plate, and the lower end of the water outlet joint on the reverse osmosis filter element is positioned in the second connecting cylinder and connected with the second connecting cylinder.

Preferably, the filter flask, the first connecting cylinder and the second connecting cylinder are made of stainless steel, coaxially arranged and integrally formed. The filter flask is made of stainless steel and can bear larger pressure.

Preferably, the outer wall of the lower end part of the inner cylinder is internally provided with an annular sealing groove for installing a sealing ring along the radial direction, and the sealing ring at the position prevents concentrated water between the activated carbon filter element and the reverse osmosis filter element from seeping out of the first connecting cylinder and mixing with tap water in the filter flask and also prevents the tap water from entering the first connecting cylinder; the lower sealing groove is radially arranged on the outer wall of the lower end of the water outlet joint along the radial direction of the water outlet joint, and the sealing ring at the position prevents concentrated water from entering the second connecting cylinder to pollute pure water and also prevents the pure water from entering the second connecting cylinder.

Preferably, the pure water port is communicated with the inside of the second connecting cylinder, the opening of the water inlet on the inner surface of the lower end plate is positioned on the outer side of the first connecting cylinder, and the thick water port is communicated with the first connecting cylinder.

The beneficial technical effects are as follows: compared with the pure water or water purifying device in the prior art, the filtering device of the utility model has simple structure, simple manufacturing process and low cost; the composite filter element, the filter element upper cover and the filter element lower cover form a whole body, so that the replacement is convenient; the filter elements of all levels forming the composite filter element have consistent service life, can be replaced at one time and are convenient after sale; the water passing joint is few, and the water seepage risk is reduced.

Drawings

Fig. 1 is a longitudinal cross-sectional view of an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the upper cover, the lower cover and the composite filter element of the filter element according to the embodiment of the present invention;

fig. 3 is a longitudinal cross-sectional view of a composite filter element according to an embodiment of the present invention;

fig. 4 is a longitudinal sectional view of the upper cover and the lower cover of the filter element according to the embodiment of the present invention;

fig. 5 is a longitudinal sectional view of a filter flask according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 5, the present embodiment discloses a filter apparatus for producing pure water, which comprises a cylindrical filter flask 1, and a filter flask upper cap 2 provided at an upper end of the filter flask. A water inlet 102, a pure water port 103 and a concentrated water port 104 which are arranged on a lower end plate 101 of the filter flask 1 and are communicated with the interior of the filter flask; the lower end plate 101 is integrally formed with the filter flask.

Still include, locate the composite filter element in the filter flask 1, composite filter element includes that both ends are leading filter core 3 respectively, and the leading filter core of here adopts the cotton filter core of PP, locates the reverse osmosis filter core 4 in leading filter core 3, locates the active carbon filter core 8 between leading filter core 3 and the reverse osmosis filter core 4. The reverse osmosis filter element 4 in the preposed filter element 3 is cylindrical.

The filter element upper cover 5 is arranged in the filter flask 1 and connected with the upper end of the composite filter element, and the filter element lower cover 6 is connected with the lower end of the composite filter element; the two ends of the preposed filter element 3 and the reverse osmosis filter element 4 are respectively connected with the filter element upper cover 5 and the filter element lower cover 6.

Here, the filter element lower cover 6 is formed by integrally molding an inner cylinder 601 and an outer cylinder 602 coaxial therewith, the lower end of the outer cylinder is provided with a sealing plate 7 integrated therewith, the sealing plate is vertically sleeved on the outer wall of the inner cylinder 601, the lower end of the inner cylinder 601 protrudes out of the lower surface of the sealing plate 7, the lower end of the preposed filter element 3 is arranged in the outer cylinder 602, the lower end of the reverse osmosis filter element 4 is arranged in the inner cylinder 601, and the water outlet joint 401 arranged at the lower end of the reverse osmosis filter element is arranged below the inner cylinder 601 after penetrating through the inner cylinder.

The inner surface of the lower end plate 101 of the filter flask 1 is provided with a first connecting cylinder 105 connected with the lower end of the inner cylinder 601, the lower end of the inner cylinder 601 is positioned in the first connecting cylinder 105, the first connecting cylinder 105 is internally provided with a second connecting cylinder 106 fixedly connected with the inner surface of the lower end plate 101, and the lower end of a water outlet joint 401 on the reverse osmosis filter element 4 is positioned in the second connecting cylinder 106 and connected with the second connecting cylinder.

Here, the filter flask 1, the first connecting cylinder 105, and the second connecting cylinder 106 are made of stainless steel and are coaxially disposed, and the filter flask 1, the first connecting cylinder 105, and the second connecting cylinder 106 are integrally molded. The filter flask 1 can bear larger pressure by being made of stainless steel.

An annular sealing groove 601a for installing a sealing ring is radially arranged in the outer wall of the lower end part of the inner cylinder 601, and the sealing ring at the position prevents concentrated water between the activated carbon filter element 8 and the reverse osmosis filter element 4 from seeping out of the first connecting cylinder 105 and mixing with tap water in the filter flask 1 and also prevents the tap water from entering the first connecting cylinder 105; a lower sealing groove 401a is arranged on the outer wall of the lower end of the water outlet joint 401 along the radial direction, and the sealing ring at the position prevents concentrated water from entering the second connecting cylinder 106 to pollute pure water and also prevents the pure water from entering the second connecting cylinder 106.

Specifically, the pure water port 103 communicates with the inside of the second connecting cylinder 106, the opening of the water inlet 102 on the inner surface of the lower end plate is located outside the first connecting cylinder 105, and the rich water port 104 communicates with the first connecting cylinder 105.

After the pressurized tap water (usually 5-8kg) enters the filter flask 1 through the water inlet 102, the tap water is pushed by the water supply pressure, filtered by the pre-filter element 3 and the activated carbon filter element 8, enters the reverse osmosis filter element 4, filtered to obtain pure water, and flows out of the pure water port 103, and the concentrated water is discharged from the concentrated water port 104.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all embodiments, and that the appended drawings illustrate preferred embodiments of the present invention, but do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. A filter device for producing pure water comprises a filter flask, a composite filter element arranged in the filter flask, and a filter flask upper cover arranged at the upper end of the filter flask, and is characterized by also comprising a filter element upper cover arranged in the filter flask and connected with the upper end of the composite filter element, and a filter element lower cover connected with the lower end of the composite filter element; the water inlet, the pure water port and the concentrated water port are arranged on the lower end plate of the filter flask and are communicated with the inside of the filter flask; the composite filter element comprises a preposed filter element, a reverse osmosis filter element and an active carbon filter element, wherein two ends of the preposed filter element are respectively connected with the upper filter element cover and the lower filter element cover; the lower end of the reverse osmosis filter element is communicated with the pure water port.

2. The filtration device for producing pure water according to claim 1, wherein the lower cover of the filter element is formed by integrally molding an inner cylinder and an outer cylinder coaxial therewith, the lower end of the outer cylinder is provided with a sealing plate, the lower end of the inner cylinder protrudes from the lower surface of the sealing plate, the lower end of the pre-filter element is arranged in the outer cylinder, the lower end of the reverse osmosis filter element is arranged in the inner cylinder, and the water outlet joint arranged at the lower end of the reverse osmosis filter element passes through the inner cylinder and then is arranged below the inner cylinder.

3. The filtration device for producing pure water as claimed in claim 2, wherein the inner surface of the lower end plate of the filter flask is provided with a first connecting cylinder connected with the lower end of the inner cylinder, the first connecting cylinder is provided with a second connecting cylinder fixedly connected with the inner surface of the lower end plate, and the lower end of the water outlet joint of the reverse osmosis filter element is positioned in the second connecting cylinder and connected with the second connecting cylinder.

4. The filter device for producing pure water according to claim 3, wherein the filter flask, the first connecting cylinder and the second connecting cylinder are made of stainless steel and are coaxially arranged, and the filter flask, the first connecting cylinder and the second connecting cylinder are integrally formed.

5. A filter unit for pure water production according to claim 3 wherein an annular seal groove for fitting a seal ring is provided radially inside the outer wall of the lower end portion of the inner cylinder; and a lower sealing groove is arranged on the outer wall of the lower end of the water outlet joint along the radial direction of the water outlet joint.

6. A pure water producing filter unit according to claim 3, wherein the pure water port is communicated with the inside of the second connecting cylinder, the opening of the water inlet port on the inner surface of the lower end plate is located outside the first connecting cylinder, and the concentrate port is communicated with the first connecting cylinder.