CN215232437U

CN215232437U - Filter element of pre-filter

Info

Publication number: CN215232437U
Application number: CN202120699709.0U
Authority: CN
Inventors: 智永胜
Original assignee: Zhejiang Meigu Technology Co ltd
Current assignee: Zhejiang Meigu Technology Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-21
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a filter core of leading filter, it includes: go up skeleton, lower skeleton, go up filter screen and lower filter screen, go up skeleton detachably fixed connection in lower skeleton, go up the filter screen cover and locate the skeleton, the lower skeleton is located to the filter screen cover down. The utility model discloses a filter core adopts two segmentation filter screen structures, and it is more convenient not only to install, can reduce the problem that the filter screen sprained moreover.

Description

Filter element of pre-filter

Technical Field

The utility model relates to a leading filter, especially indicate the filter core of leading filter.

Background

Tap water passes through a plurality of pipelines before reaching each user through the pipe network, and a plurality of impurities such as silt, rust, suspended matters and the like exist in the pipelines, so that water pollution can be caused if the filtering treatment is not carried out. The pre-filter is adopted to filter at the source of the domestic water, so that the secondary pollution can be effectively eliminated, the water pollution diseases are reduced, solid impurities can be removed, the safety of a pipeline system is protected, and the system maintenance cost is reduced.

The filter core is the core component of leading filter, and current filter core includes skeleton and filter screen usually, and the filter screen chucking is located outside the skeleton. At present, when the filter screen and the framework are assembled, the filter screen is required to be made into a cylinder shape with the same outer diameter as the framework in advance, and then the cylinder-shaped filter screen is sleeved outside the framework in a manual assembly mode. Because the length of the framework is larger, the axial length of the filter screen matched with the framework is relatively longer; and the internal diameter of filter screen is the same basically with the external diameter of skeleton again, therefore, in prior art, the great filter screen of axial length is difficult directly the suit outside the skeleton through the mode of manual installation, and in addition, the filter screen of overlength also is easier in the installation, is sprained to influence its filtration performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leading filter's filter core, the comparatively difficult problem of manual installation that its aim at overcome the filter screen that prior art exists and skeleton lead to because axial length is great.

In order to achieve the purpose, the utility model provides a technical scheme as follows:

a cartridge for a prefilter comprising: go up skeleton, lower skeleton, go up filter screen and lower filter screen, go up skeleton detachably fixed connection in lower skeleton, go up the filter screen cover and locate the skeleton, the lower skeleton is located to the filter screen cover down.

In a preferred embodiment, the upper end of the lower frame is clamped to the lower end of the upper frame.

In a preferred embodiment, the lower frame is snapped onto the inner wall of the upper frame.

In a recommended embodiment, the lower framework is provided with a first positioning part, the upper framework is provided with a second positioning part, and the first positioning part is matched with the second positioning part to prevent the upper framework and the lower framework from rotating relatively.

In a preferred embodiment, the upper frame is clamped to the inner wall of the lower frame.

In a recommended embodiment, the filter element further comprises a water distribution frame, the water distribution frame comprises a circular surrounding wall and a plurality of connecting rods which are spaced from each other, one end of each connecting rod is connected to the upper framework, and the other end of each connecting rod is connected to the surrounding wall. The arrangement of the water distribution frame can facilitate the assembly of the filter element in the filter flask.

In a recommended embodiment, the filter element further comprises a water distribution frame, the water distribution frame comprises a circular surrounding wall and a plurality of connecting rods which are spaced from each other, one end of each connecting rod is connected to the lower framework, and the other end of each connecting rod is connected to the surrounding wall.

In a preferred embodiment, the peripheral wall is provided with a positioning portion. When the filter element is used, the inner wall of the filter bottle is usually provided with an assembling part matched with the positioning part, and the positioning part is used for facilitating the filter element to be fixedly arranged in the filter bottle as a whole.

In a recommended embodiment, an upper compression ring and a lower compression ring are respectively arranged at the upper end and the lower end of the lower framework, and the edge of the upper end of the lower filter screen is compressed in the upper compression ring; the lower end edge of the lower filter screen is tightly pressed in the lower pressing ring. The upper and lower edge of lower filter screen is compressed tightly by last clamping ring and lower clamping ring, can prevent the deckle edge problem from appearing.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model discloses a filter core adopts two segmentation filter screen structures, and it is more convenient not only to install, can reduce the problem that the filter screen sprained moreover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic structural diagram of the upper framework and the water distribution framework.

Fig. 4 is a schematic view of the filter cartridge assembled in a filter flask.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to the following 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, a cartridge for a prefilter comprising: an upper framework 1, a lower framework 2, an upper filter screen 3, a lower filter screen 4 and a water distribution frame 5. Referring to fig. 2, the upper frame 1 and the lower frame 2 are both hollow cylinders, and the side walls thereof are both hollow structures and both include axial beams and radial ring beams which are staggered with each other. In this embodiment, the upper end of lower skeleton 2 is equipped with four buckles 21, these buckles 21 evenly distributed in the top edge of lower skeleton 2, during the installation, buckle 21 joint in the fretwork part of the inner wall of last skeleton 1 of lower skeleton 2 to this assembly of accomplishing skeleton 1 and lower skeleton 2, in order to prevent that skeleton 1 and lower skeleton 2 from taking place relative rotation, go up skeleton 1 and lower skeleton 2 and still be equipped with first location portion and the second location portion of mutually supporting respectively.

Referring to fig. 2 and 3, the first positioning portion of the lower frame 2 is two protrusions 22 located at the upper end of the lower frame 2, and the two protrusions 22 are arranged oppositely; the second positioning part of the upper framework 1 is two positioning notches 11 positioned on the inner wall of the upper framework 1, and the two positioning notches 11 are also oppositely arranged. During assembly, the two projections 22 of the lower framework 2 are respectively clamped into the two positioning notches 11 of the upper framework 1.

With continued reference to fig. 2 and 3, the water distribution frame 5 includes a circular surrounding wall 51 and a plurality of connecting rods 52 spaced from each other, each connecting rod 52 is radially disposed, one end of each connecting rod 52 is connected to the lower end of the upper framework 1, the other end is connected to the surrounding wall 51, and a water flow channel is formed by the gap between the adjacent connecting rods 52. Further, in the present embodiment, the water distribution frame 5 and the upper frame 1 are integrally formed.

Referring to fig. 1, the upper filter screen 3 is sleeved on the upper framework 1, the inner diameter of the upper filter screen 3 is substantially the same as the outer diameter of the upper framework 1, and the lower end of the upper filter screen 3 abuts against the water distribution frame 5. As can be seen from fig. 2, a step portion 12 is provided at the upper end of the upper framework 1, a sealing ring 13 adapted to the step portion 12 is mounted on the step portion 12, and the upper end edge of the upper filter screen 3 is covered by the sealing ring 13 during mounting.

The lower filter screen 4 is sleeved on the lower framework 2, an upper press ring 6 and a lower press ring 7 are respectively arranged at the upper end and the lower end of the lower framework 2, and the edge of the upper end of the lower filter screen 4 is tightly pressed in the upper press ring 6; the lower end edge of the lower filter screen 4 is pressed in the lower pressing ring 7. The upper and lower edges of the lower filter screen 4 are compressed by the upper compression ring 6 and the lower compression ring 7, so that the problem of burrs can be prevented.

In the preferred embodiment, the wall 51 of the water distribution frame 5 is provided with a positioning portion, in this embodiment two protruding positioning blocks 53. Referring also to fig. 4, the inner wall of the filter bottle 8 is provided with an assembling portion which is matched with the positioning block 53, the assembling portion in this embodiment is a positioning groove 81, and when the filter bottle is installed, the positioning block 53 is clamped into the corresponding positioning groove 18, which facilitates the fixed installation of the filter element in the filter bottle 8 as a whole.

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 the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Filter element of a prefilter, characterized in that it comprises: go up skeleton, lower skeleton, go up filter screen and lower filter screen, go up skeleton detachably fixed connection in lower skeleton, go up the filter screen cover and locate the skeleton, the lower skeleton is located to the filter screen cover down.

2. The filter cartridge of claim 1, wherein: the upper end of the lower framework is clamped at the lower end of the upper framework.

3. The filter cartridge of claim 2, wherein: the lower framework is clamped on the inner wall of the upper framework.

4. A filter cartridge as recited in claim 3, wherein: the lower framework is provided with a first positioning part, the upper framework is provided with a second positioning part, and the first positioning part is matched with the second positioning part to prevent the upper framework and the lower framework from rotating relatively.

5. The filter cartridge of claim 2, wherein: the upper framework is clamped on the inner wall of the lower framework.

6. The filter cartridge of claim 1, wherein: the filter element further comprises a water distribution frame, the water distribution frame comprises a circular surrounding wall and a plurality of connecting rods which are spaced from each other, one end of each connecting rod is connected to the upper framework, and the other end of each connecting rod is connected to the surrounding wall.

7. The filter cartridge of claim 1, wherein: the filter element further comprises a water distribution frame, the water distribution frame comprises a circular surrounding wall and a plurality of connecting rods which are spaced from each other, one end of each connecting rod is connected to the lower framework, and the other end of each connecting rod is connected to the surrounding wall.

8. A filter cartridge as claimed in claim 6 or 7, wherein: and the surrounding wall is provided with a positioning part.

9. The filter cartridge of claim 1, wherein: the upper end and the lower end of the lower framework are respectively provided with an upper compression ring and a lower compression ring, and the edge of the upper end of the lower filter screen is tightly pressed in the upper compression ring; the lower end edge of the lower filter screen is tightly pressed in the lower pressing ring.