Filter screen filter

Abstract

The utility model discloses a filter screen filter which comprises a lower shell, an upper shell and a filter material, the upper end of the lower shell is fixedly connected with the upper shell, the filter material is fixedly installed between the lower shell and the upper shell, the filter material comprises filter paper, a supporting framework, a filter screen supporting frame and a filter screen, a large installation bin and a small installation bin are arranged in the supporting framework, and the filter screen supporting frame is fixedly connected with the lower shell. Filter paper is mounted in the large mounting bin, a plurality of filter screen supporting frames are fixedly connected into the small mounting bin, and filter screens are fixedly mounted on the filter screen supporting frames. The novel structure is adopted, the filter paper and the filter screen are arranged, the filter paper can provide large dust holding capacity, the filter screen can filter large particles, meanwhile, compared with pure filter paper, the pressure drop is greatly reduced, the filter is not prone to damage, the replacement rate of the filter is reduced, the use cost is reduced, and the filter is simple and reasonable in structure, convenient to install and use and suitable for popularization and application. The manufacturing cost is low and the practicability is high.

Description

Technical Field

[0001] The utility model relates to a filter screen filter, in particular to a filter screen filter. Background Art

[0002] The existing filters have a small dust holding capacity and a large pressure drop for the filter paper filter, which makes them easily damaged during use, increasing the replacement rate of the filter screen filter and raising the usage cost. Therefore, we propose a filter screen filter. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a filter screen filter, which solves the problems that the existing filters have a small dust holding capacity and a large pressure drop for the filter paper filter, making them easily damaged during use, increasing the replacement rate of the filter screen filter and raising the usage cost.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: A filter screen filter includes a lower housing, an upper housing and a filter medium. The upper end of the lower housing is fixedly connected to the upper housing, and a filter medium is fixedly installed between the lower housing and the upper housing. The filter medium includes filter paper, a support skeleton, a filter screen support frame and a filter screen. There are two installation chambers of different sizes in the support skeleton. The large installation chamber is internally provided with filter paper, and a plurality of filter screen support frames are fixedly connected in the small installation chamber. A filter screen is fixedly installed on the plurality of filter screen support frames.

[0005] On the basis of the above solution, an oil inlet is fixedly connected to the bottom end of the lower housing.

[0006] On the basis of the above solution, an oil outlet is fixedly connected to one end of the upper housing.

[0007] On the basis of the above solution, the filter screen is made of a metal material.

[0008] The beneficial effect of the utility model compared with the prior art is: A filter screen filter adopts a new structure, with filter paper and a filter screen provided. The filter paper can provide a large dust holding capacity, and while the filter screen can filter large particles, it greatly reduces the pressure drop compared to a simple filter paper. The filter is not easily damaged, reducing the replacement rate of the filter and the usage cost. The structure of the utility model is simple and reasonable, convenient for installation and use, with a low manufacturing cost and strong practicability. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of a filter screen filter of the utility model;

[0010] Figure 2 It is an upper view of an exploded view of a filter screen filter of the utility model;

[0011] Figure 3This is the bottom view of the exploded view of a filter screen filter of the present utility model.

[0012] The reference numerals in the figure are: 1 - lower housing, 101 - oil inlet, 2 - upper housing, 201 - oil outlet, 3 - filter medium, 301 - filter paper, 302 - support skeleton, 303 - filter screen support frame, 304 - filter screen. Detailed implementation manners

[0013] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0014] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0015] Refer to Figures 1 to 3 It can be seen that a filter screen filter includes a lower housing 1, an upper housing 2 and a filter medium 3. The upper end of the lower housing 1 is fixedly connected to the upper housing 2, and the filter medium 3 is fixedly installed between the lower housing 1 and the upper housing 2. The filter medium 3 includes a filter paper 301, a support skeleton 302, a filter screen support frame 303 and a filter screen 304. There are two installation bins of different sizes inside the support skeleton 302. The filter paper 301 is installed in the large installation bin, and the filter paper 301 can provide a large dust holding capacity. A plurality of filter screen support frames 303 are fixedly connected in the small installation bin, and a filter screen 304 is fixedly installed on the plurality of filter screen support frames 303, and the filter screen 304 can filter large particles.

[0016] The bottom end of the lower housing 1 is fixedly connected with an oil inlet 101, and this design facilitates the oil to enter the lower housing 1; one end of the upper housing 2 is fixedly connected with an oil outlet 201, and this design facilitates the filtered oil to flow out; the filter screen 304 is made of a metal material. The filter screen 304 made of a metal material can filter large particles while greatly reducing the pressure drop compared with a simple filter paper, and reducing the damage rate of the filter.

[0017] Principle and advantages of the present utility model: A filter screen filter. When in use, oil enters the lower housing 1 from the oil inlet 101, then passes through the filter paper 301 and the filter screen 304 and enters the upper housing 2, and then exits from the oil outlet 201. The filter paper 301 can provide a large dust capacity. While the filter screen 304 can filter large particles, it greatly reduces the pressure drop compared with the simple filter paper 301. The filter is not easily damaged, reducing the replacement rate of the filter and the usage cost. The structure of the present utility model is simple and reasonable, convenient for installation and use, and has a low manufacturing cost, making it suitable for popularization and use.

[0018] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screen filter, comprising a lower shell (1), an upper shell (2) and a filter material (3), characterized in that: The upper end of the lower shell (1) is fixedly connected to the upper shell (2); a filter material (3) is fixedly installed between the lower shell (1) and the upper shell (2); the filter material (3) comprises filter paper (301), a support frame (302), a filter screen support frame (303) and a filter screen (304); two installation chambers, one large and one small, are provided in the support frame (302); the filter paper (301) is installed in the large installation chamber; a plurality of filter screen support frames (303) are fixedly connected in the small installation chamber; and filter screens (304) are fixedly installed on the plurality of filter screen support frames (303).

2. A screen filter according to claim 1, characterized in that: The bottom end of the lower housing (1) is fixedly connected with an oil inlet (101).

3. A screen filter according to claim 1, characterized in that: One end of the upper housing (2) is fixedly connected to an oil outlet (201).

4. A screen filter according to claim 1, characterized in that: The filter screen (304) is made of metal material.

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