CN211935746U

CN211935746U - Filter with quickly replaceable filter element

Info

Publication number: CN211935746U
Application number: CN202020461050.0U
Authority: CN
Inventors: 许海旺
Original assignee: Beijing Sinotech Purification Equipment Co Ltd
Current assignee: Beijing Sinotech Purification Equipment Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-17
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a but filter of quick replacement filter core, including the casing and the valve head that can dismantle the connection. One end of the valve head is provided with a water inlet channel, and the other end of the valve head is provided with a water outlet channel. The shell is internally provided with a separation plate which separates the shell into an upper cavity and a lower cavity, and a gap communicated with the upper cavity and the lower cavity is reserved between the separation plate and the inner wall of the shell. The middle part of the separation plate is sealed to penetrate through a central water inlet pipe extending into the valve head, and a central passage communicated with the water inlet passage and the upper cavity is arranged in the central water inlet pipe. An annular filter element is arranged in the lower cavity, one end of the annular filter element is embedded in the valve head in a sealing mode, and the other end of the annular filter element is abutted to the partition plate in a sealing mode. And a water purifying cavity communicated with the water outlet channel is formed between the annular filter element and the central water inlet pipe in a limited mode. The utility model discloses a filter has simplified the structure of filter, has improved filter core replacement efficiency.

Description

Filter with quickly replaceable filter element

Technical Field

The utility model relates to a filter technical field especially relates to a but filter of quick replacement filter core.

Background

Water filtration devices are one of the most common accessories in the water treatment industry, and are of a wide variety, such as: precision filters, activated carbon filters, pre-filters, coarse filters, disc filters, and the like. When in use, the matched type can be selected according to the water use requirement, the water quality and the water quality required to be discharged. Maintenance and servicing of the filter is particularly important because the filter can be used for a long time or left unused for a long time, which affects its service life and working efficiency. However, the existing water filter has complex structure and troublesome disassembly and assembly, the dirt holding capacity of the filter element is limited, the filter element needs to be frequently replaced, and the existing filter element replacement process is complex and wastes time, so that the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a but filter of quick replacement filter core has simplified the structure of filter, has improved filter core replacement efficiency.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a filter with a quickly replaceable filter element comprises a shell and a valve head which are detachably connected. One end of the valve head is provided with a water inlet channel, and the other end of the valve head is provided with a water outlet channel. The shell is internally provided with a separation plate which separates the shell into an upper cavity and a lower cavity, and a gap communicated with the upper cavity and the lower cavity is reserved between the separation plate and the inner wall of the shell. The middle part of the separation plate is sealed to penetrate through a central water inlet pipe extending into the valve head, and a central passage communicated with the water inlet passage and the upper cavity is arranged in the central water inlet pipe. An annular filter element is arranged in the lower cavity, one end of the annular filter element is embedded in the valve head in a sealing mode, and the other end of the annular filter element is abutted to the partition plate in a sealing mode. And a water purifying cavity communicated with the water outlet channel is formed between the annular filter element and the central water inlet pipe in a limited mode.

During filtration, raw water enters from the water inlet channel, enters the upper cavity through the central channel, enters the lower cavity (between the shell and the annular filter element) through a gap between the partition plate and the inner wall of the shell, impurities are retained between the shell and the annular filter element through the blocking of the annular filter element, and purified water enters the water purification cavity through the annular filter element and then flows out of the filter through the water outlet channel.

When the annular filter element needs to be replaced, the valve head is detached from the shell, and at the moment, because one end of the annular filter element is embedded in the valve head in a sealing mode, and the other end of the annular filter element is abutted against the separation plate in a sealing mode (namely, the annular filter element only abuts against the separation plate and is not connected with the separation plate), the annular filter element can be detached together with the valve head; then the annular filter element is reversely pulled out, so that the separation of the annular filter element and the valve head can be realized, and at the moment, the inside of the shell can be directly cleaned to discharge impurities.

The beneficial effects of the utility model reside in that: through the structure of simplifying the filter, the cleaning procedure of the shell is simplified, the quick replacement of the annular filter element is realized, and the working efficiency is improved.

Further, the valve head includes the valve head body, the upper end of valve head body is equipped with and is used for the embedding annular filter element's annular No. one, an organic whole is provided with on the upper end outer wall of valve head body and can cup joints connecting portion on the casing.

Further, the upper end of the valve head body is also provided with a sealing gasket covering the first annular groove, and one end of the sealing gasket is embedded in the connecting part. When the annular filter element is embedded into the first annular groove, the sealing gasket can seal the gap between the annular filter element and the first annular groove.

The annular filter element is pressed on the sealing gasket, the sealing gasket is pressed in the first annular groove, when the valve head is installed on the shell, the upper end of the annular filter element is pressed on the separation plate, and the lower end of the annular filter element can be tightly pressed on the sealing gasket in the first annular groove to realize sealing. When the annular filter element needs to be replaced, the annular filter element is pulled out of the first annular groove in the reverse direction, and the sealing gasket rebounds to cover the first annular groove again. Break away from the valve head body when can effectively avoiding seal gasket resilience through embedding seal gasket's one end in the connecting portion.

Further, the lower end of the partition plate is provided with a second ring groove for embedding the annular filter element, the inner wall of the second ring groove is provided with a sealing ring, and the bottom of the second ring groove is provided with a pressure spring capable of abutting against the annular filter element; when the annular filter element is embedded into the second annular groove, the pressure spring is in a compressed state. The annular filter element embedded in the second annular groove is always subjected to downward pressure by arranging a pressure spring in the second annular groove; when the valve head is disassembled, the pressure spring can push the annular filter element to leave the second annular groove quickly, so that the annular filter element is convenient to separate from the partition plate. The sealing of the annular filter element can be realized through the arrangement of the sealing ring.

Further, the central water inlet pipe comprises a first pipe, and a second pipe located on the upper cavity is integrally arranged at the upper end of the first pipe. The bottom of the first pipe is provided with a water inlet end of the central channel, and the side wall of the second pipe is provided with a water outlet end of the central channel.

Furthermore, the lower end of the first pipe is positioned in the water inlet channel, and the side wall of the first pipe is provided with an external thread structure; and an internal thread structure matched with the external thread structure is arranged in the water inlet channel.

Further, the division board includes the circular slab, the symmetry is provided with the trip on the outer wall of circular slab, be equipped with on the inner wall of casing with the draw-in groove that the trip matches.

Further, an observation window for observing the annular filter element is further arranged on the side wall of the shell. The use condition of the annular filter element is convenient to check through the arrangement of the observation window, and the annular filter element is replaced in time.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic sectional structure diagram of the embodiment of the present invention;

FIG. 3 is a partial enlarged view of portion A of FIG. 2;

fig. 4 is a sectional structure diagram of a valve head according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a central water inlet pipe according to an embodiment of the present invention.

In the figure:

1-a shell; 11-a viewing window; 2-valve head; 21-a water inlet channel; 22-a water outlet channel; 23-a valve head body; 231-first ring groove; 24-a connecting portion; 3-a partition plate; 31-circular plate; 311-hook; 312-ring groove number two; 313-a seal ring; 314-pressure spring; 315-a clamping part; 4-a central water inlet pipe; 41-a central channel; 42-first tube; 43-second tube; 5-a ring-shaped filter element; 6-a water purifying cavity; 7-a sealing gasket.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Examples

Referring to fig. 1-2, the filter with quick replaceable filter element of the present invention comprises a housing 1 and a valve head 2 detachably connected to each other. One end of the valve head 2 is provided with a water inlet channel 21, and the other end is provided with a water outlet channel 22. A partition plate 3 for dividing the interior of the shell into an upper cavity and a lower cavity is arranged in the shell 1, and a gap for communicating the upper cavity and the lower cavity is reserved between the partition plate 3 and the inner wall of the shell 1. The middle part of the separation plate 3 is sealed and provided with a central water inlet pipe 4 extending into the valve head 2 in a penetrating way, and a central channel 41 communicating the water inlet channel 21 with the upper cavity is arranged in the central water inlet pipe 4. An annular filter element 5 is arranged in the lower cavity, one end of the annular filter element 5 is embedded in the valve head 2 in a sealing mode, and the other end of the annular filter element 5 is abutted to the partition plate 3 in a sealing mode. The annular filter element 5 and the central water inlet pipe 4 define a purified water cavity 6 communicated with the water outlet channel 22.

During filtration, raw water enters from the water inlet channel 21, enters the upper cavity through the central channel 21, enters the lower cavity (between the shell 1 and the annular filter element 5) through a gap between the partition plate 3 and the inner wall of the shell 1, impurities are retained between the shell 1 and the annular filter element 5 through the blocking of the annular filter element 5, and purified water enters the purified water cavity 6 through the annular filter element 5 and then flows out of the filter through the water outlet channel 22.

When the annular filter element 5 needs to be replaced, the valve head 2 is detached from the housing 1, and at this time, because one end of the annular filter element 5 is embedded in the valve head 2 in a sealing manner, and the other end of the annular filter element 5 is abutted against the separation plate 3 in a sealing manner (i.e., the annular filter element 5 only abuts against the separation plate 3 and is not connected with the separation plate 3), the annular filter element 5 can be detached together with the valve head 2; then the annular filter element 5 is pulled out reversely to realize the separation of the annular filter element 5 and the valve head 2, and at the moment, the inside of the shell 1 can be directly cleaned to discharge impurities.

Referring to fig. 2 and 4, the valve head 2 includes a valve head body 23, a first annular groove 231 for embedding the annular filter element 5 is provided at an upper end of the valve head body 23, and a connecting portion 24 capable of being sleeved on the housing 1 is integrally provided on an outer wall of the upper end of the valve head body 23. The connecting portion 24 is connected to the housing 1 by a screw structure.

The upper end of the valve head body 23 is further provided with a sealing gasket 7 covering the first annular groove 231, and one end of the sealing gasket 7 is embedded in the connecting part 24. When the filter ring 5 is inserted into the first annular groove 231, the sealing gasket 7 can seal the gap between the filter ring 5 and the first annular groove 231. The annular filter element 5 is abutted against the sealing gasket 7, so that the sealing gasket 7 is pressed into the first annular groove 231, when the valve head 2 is mounted on the shell 1, along with the abutting of the upper end of the annular filter element 5 against the partition plate 3, the lower end of the annular filter element 5 can be tightly pressed on the sealing gasket 7 positioned in the first annular groove 231, and sealing is realized. When the annular filter element 5 needs to be replaced, the annular filter element 5 is pulled out of the first annular groove 231 reversely, and the sealing gasket 7 rebounds to be covered on the first annular groove 231 again. The sealing gasket 7 can be effectively prevented from being separated from the valve head body 23 when rebounding by embedding one end of the sealing gasket 7 into the connecting part 24.

Referring to fig. 3, the partition plate 3 includes a circular plate 31, and the radial dimension of the circular plate 31 is smaller than the inner diameter dimension of the housing 1. The outer wall of the circular plate 31 is symmetrically provided with hooks 311, and the inner wall of the shell 1 is provided with clamping grooves matched with the hooks 311. The lower end of the circular plate 31 is provided with a second annular groove 312 matched with the annular filter element 5, the inner wall of the second annular groove 312 is provided with a sealing ring 313, and the bottom of the second annular groove 312 is provided with a pressure spring 314 capable of abutting against the annular filter element 5; when the annular filter element 5 is installed, the annular filter element can be embedded into the second annular groove 312 and pressed against the compression spring 314, and the compression spring 314 is in a compressed state.

The sealing of the annular filter element 5 during filtering can be realized through the arrangement of the sealing ring 313; the annular filter element 5 embedded in the second ring groove 312 is always pressed downwards by arranging the pressure spring 314 in the second ring groove 312; when the valve head 2 is disassembled, the pressure spring 314 can push the ring-shaped filter element 5 to rapidly leave the second annular groove 312, so that the ring-shaped filter element 5 can be conveniently and rapidly separated from the partition plate 3.

Specifically, a clamping groove for clamping the pressure spring 314 is formed in the second annular groove 312, and a clamping portion 315 capable of being embedded into the clamping groove is formed in the pressure spring 314.

Referring to fig. 5, the central water inlet pipe 4 includes a first pipe 42, and a second pipe 43 located in the upper chamber is integrally provided at an upper end of the first pipe 42. The radial dimension of second tube 43 is greater than the radial dimension of first tube 42. The bottom of the first tube 42 is provided with a water inlet end 421 of the central channel 41, and the side wall of the second tube 43 is provided with a water outlet end 431 of the central channel 41.

The lower end of the first pipe 42 is positioned in the water inlet channel 21, and the side wall of the first pipe is provided with an external thread structure. And an internal thread structure matched with the external thread structure is arranged in the water inlet channel 21. And a sealing sheet is arranged between the external thread structure and the internal thread structure.

And the side wall of the shell 1 is also provided with an observation window 11 for observing the annular filter element 5. The arrangement of the observation window 11 is convenient for checking the use condition of the annular filter element 5 and replacing the annular filter element in time.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A filter with a quickly replaceable filter element comprises a shell and a valve head which are detachably connected; one end of the valve head is provided with a water inlet channel, and the other end of the valve head is provided with a water outlet channel; the method is characterized in that: a partition plate for dividing the interior of the shell into an upper cavity and a lower cavity is arranged in the shell, and a gap for communicating the upper cavity and the lower cavity is reserved between the partition plate and the inner wall of the shell; a central water inlet pipe extending into the valve head is hermetically arranged in the middle of the partition plate in a penetrating manner, and a central channel for communicating the water inlet channel with the upper cavity is arranged in the central water inlet pipe; an annular filter element is arranged in the lower cavity, one end of the annular filter element is embedded on the valve head in a sealing mode, and the other end of the annular filter element is abutted against the partition plate in a sealing mode; and a water purifying cavity communicated with the water outlet channel is formed between the annular filter element and the central water inlet pipe in a limited mode.

2. The filter of claim 1, wherein: the valve head includes the valve head body, the upper end of valve head body is equipped with and is used for the embedding annular filter core's annular No. one, an organic whole is provided with on the upper end outer wall of valve head body and can cup joints connecting portion on the casing.

3. The filter of claim 2, wherein: the upper end of the valve head body is also provided with a sealing gasket covering the first ring groove, and one end of the sealing gasket is embedded in the connecting part; when the annular filter element is embedded into the first annular groove, the sealing gasket can seal the gap between the annular filter element and the first annular groove.

4. A filter according to any one of claims 1 to 3, wherein: the lower end of the partition plate is provided with a second ring groove used for embedding the annular filter element, the inner wall of the second ring groove is provided with a sealing ring, and the bottom of the second ring groove is provided with a pressure spring capable of pressing against the annular filter element; when the annular filter element is embedded into the second annular groove, the pressure spring is in a compressed state.

5. The filter of claim 4, wherein: the central water inlet pipe comprises a first pipe, and a second pipe positioned in the upper cavity is integrally arranged at the upper end of the first pipe; the bottom of the first pipe is provided with a water inlet end of the central channel, and the side wall of the second pipe is provided with a water outlet end of the central channel.

6. The filter of claim 5, wherein: the lower end of the first pipe is positioned in the water inlet channel, and the side wall of the first pipe is provided with an external thread structure; and an internal thread structure matched with the external thread structure is arranged in the water inlet channel.

7. The filter of claim 1, wherein: the partition plate comprises a circular plate, clamping hooks are symmetrically arranged on the outer wall of the circular plate, and clamping grooves matched with the clamping hooks are formed in the inner wall of the shell.

8. The filter of claim 1, wherein: and the side wall of the shell is also provided with an observation window for observing the annular filter element.