CN215462389U

CN215462389U - Leading filter with switching-over valve

Info

Publication number: CN215462389U
Application number: CN202121841585.1U
Authority: CN
Inventors: 智永胜
Original assignee: Hangzhou Makergood Technology Co ltd
Current assignee: Hangzhou Makergood Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-11
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a pre-filter with a reversing valve, which comprises a valve head and the reversing valve used for switching a flow channel, wherein the valve head comprises a water inlet end and a water outlet end; the reversing valve is rotatably arranged in the inner lining sleeve. According to the utility model, the inner lining (plastic) is added between the reversing valve and the copper valve head, so that sealing parts (a raw water sealing body and a purified water sealing body) on the reversing valve are prevented from being scratched by the copper valve head when the reversing valve rotates, and the service life of the prefilter is further prolonged.

Description

Leading filter with switching-over valve

Technical Field

The utility model relates to a prefilter, in particular to a prefilter with an optimized structure.

Background

The applicant discloses a prefilter disclosed in the patent with the application number of 2021212418856, which utilizes the synchronous linkage of a reversing valve, a screw rod part and a lifting part, and when in use, the filter state and the backwashing state can be switched only by controlling the rotation of the reversing valve, so that the operation is very convenient.

However, because hug closely raw water seal and the water purification seal in the valve head inner wall, can follow along with the rotation of switching-over valve and rotate, consequently when the switching-over valve rotates, the edge of the business turn over of valve head, delivery port can be constantly scraped raw water seal and water purification seal, and the valve head is the hard copper product of texture, therefore raw water seal and water purification seal are scratched very easily, and then lead to sealing performance to receive the influence.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pre-filter with a reversing valve, and aims to solve the problem that the sealing performance is influenced in the rotating process of the reversing valve due to the fact that the reversing valve is directly sealed with a valve head in the prior art.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

a pre-filter with a reversing valve comprises a valve head and the reversing valve for switching a flow channel, wherein the valve head comprises a water inlet end and a water outlet end; the reversing valve is rotatably arranged in the inner lining sleeve.

In a preferred embodiment, the inner sleeve comprises a tubular enclosure wall, the water inlet and outlet being provided on opposite sides of the tubular enclosure wall.

In a preferred embodiment, the inner liner further comprises a fitting portion for fixedly mounting the inner liner within the valve head.

In a preferred embodiment, the assembling portion is at least two projections, each projection projects from the tubular surrounding wall and is close to the lower port of the tubular surrounding wall; the inner wall of the valve head is provided with clamping grooves corresponding to the convex blocks respectively.

In a preferred embodiment, the upper and lower portions of the tubular enclosure wall are provided with respective annular grooves for fitting the sealing rings.

In a preferred embodiment, the inner liner is made of plastic.

In a preferred embodiment, the pre-filter comprises a filter element assembly, the inner side of which forms a raw water cavity; the filter element group spare outside forms the water purification chamber, raw water connector and water purification connector have been seted up on the switching-over valve lateral wall, install raw water seal and water purification seal on raw water connector and the water purification connector respectively.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

according to the utility model, the inner lining (plastic) is added between the reversing valve and the copper valve head, so that sealing parts (a raw water sealing body and a purified water sealing body) on the reversing valve are prevented from being scratched by the copper valve head when the reversing valve rotates, and the service life of the prefilter is further prolonged.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention in a filtration state.

Fig. 2 is an enlarged schematic view of a circled portion in fig. 1.

Fig. 3 is an exploded view of the diverter valve.

Fig. 4 is a schematic structural view of the inner liner.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

Referring to fig. 1 and 2, a prefilter with a diverter valve mainly comprises a valve head 1, a filter flask 2, a filter element assembly 3, a diverter valve 4 and an inner liner 5.

Filter flask 2 fixed mounting is in the lower port of valve head 1, and filter element group spare 3 fixed mounting is in filter flask 2. The valve head 1 comprises a water inlet end 11 and a water outlet end 12 which are oppositely arranged, and water flows in from the water inlet end 11 and flows out from the water outlet end 12.

With reference also to fig. 4, the prefilter further comprises an inner liner 5 made of plastic, the inner liner 5 is fixedly mounted in the valve head 1, and the inner liner 5 has a water inlet 51 and a water outlet 52 corresponding to the water inlet end 11 and the water outlet end 12, respectively, the main part of the inner liner 5 is a tubular enclosure wall, and the water inlet 51 and the water outlet 52 are arranged on opposite sides of the tubular enclosure wall.

In a preferred embodiment, a plurality of mutually spaced lugs 53 are arranged on the outer side wall of the inner bushing 5, and each lug 53 protrudes from the outer side wall of the inner bushing 5 and is close to the lower port of the inner bushing 5; the inner wall of the valve head 1 is provided with a slot (not shown) corresponding to the protrusion 53. In addition, the upper and lower portions of the inner hub 5 are respectively provided with annular grooves 54 for fitting seal rings. During installation, the inner bushing 5 is inserted into the valve head 1 from the lower end of the valve head 1, and a sealing ring (not marked in the figure) is tightly attached between the inner bushing 5 and the inner wall of the valve head 1.

Referring to fig. 3, a raw water cavity is formed inside the filter element assembly 3; the outer side of the filter element component 3 forms a water purifying cavity. The reversing valve 4 is rotatably installed in the inner bushing 5, a raw water connecting port 41 and a purified water connecting port 42 are formed in the side wall of the reversing valve 4, and a raw water sealing body 43 and a purified water sealing body 44 are respectively installed on the raw water connecting port 41 and the purified water connecting port 42.

When the pre-filter is used, the reversing valve 4 is rotated to switch flow channels, and the inner lining 5 (plastic) is additionally arranged between the reversing valve 4 and the valve head 1 made of copper, so that the raw water sealing body 43 and the purified water sealing body 44 on the reversing valve 4 are prevented from being scratched by the valve head 1 made of copper when the reversing valve 4 rotates, and the service life of the pre-filter is further prolonged.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a prefilter with switching-over valve, includes valve head and is used for switching over the switching-over valve of runner, and the valve head includes into water end and play water end, its characterized in that: the pre-filter also comprises an inner lining which is fixedly arranged in the valve head and is provided with a water inlet and a water outlet which correspond to the water inlet end and the water outlet end respectively; the reversing valve is rotatably arranged in the inner lining sleeve.

2. The prefilter of claim 1 wherein: the inner lining comprises a tubular surrounding wall, and the water inlet and the water outlet are arranged on the opposite sides of the tubular surrounding wall.

3. The prefilter of claim 2 wherein: the inner bushing also comprises an assembling part for fixedly installing the inner bushing in the valve head.

4. The prefilter of claim 3 wherein: the assembling part is at least two convex blocks, and each convex block respectively protrudes out of the tubular surrounding wall and is close to the lower port of the tubular surrounding wall; the inner wall of the valve head is provided with clamping grooves corresponding to the convex blocks respectively.

5. The prefilter of claim 2 wherein: and the upper part and the lower part of the tubular surrounding wall are respectively provided with an annular groove for assembling a sealing ring.

6. The prefilter of claim 1 wherein: the inner liner is made of plastic.

7. The prefilter of claim 1 wherein: the pre-filter comprises a filter element component, and a raw water cavity is formed at the inner side of the filter element component; the filter element group spare outside forms the water purification chamber, raw water connector and water purification connector have been seted up on the switching-over valve lateral wall, install raw water seal and water purification seal on raw water connector and the water purification connector respectively.