CN217794825U

CN217794825U - Oil return filter

Info

Publication number: CN217794825U
Application number: CN202220974457.2U
Authority: CN
Inventors: 李红娟; 吴敏; 汪文君; 高武岳; 曾洁雨; 程莹伟; 谢莹; 张振
Original assignee: Collins Fluid Equipment Shanghai Co ltd
Current assignee: Collins Fluid Equipment Shanghai Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-11-15
Anticipated expiration: 2032-04-24

Abstract

The utility model relates to an oil return filter, including filter body, filter body includes casing and lower casing, goes up casing and lower body coupling, and the top of going up the casing is provided with the top cap, goes up still to be provided with respirator, breather and oil level gauge on the casing, and oil level gauge and respirator symmetry each other are connected with last casing, and breather setting is just connected with last casing in the respirator below, and the internal portion of inferior valve is provided with the filter core.

Description

Oil return filter

Technical Field

The utility model relates to a filtration equipment technical field specifically is an oil return filter.

Background

The very extensive filtering program who is applied to fluid of filter, the whole equipment of filter among the prior art is heavier, and in addition, its mechanical strength and rigidity are lower, are unfavorable for long-time the use, and in addition, its function is comparatively single, is difficult to satisfy staff's demand in the use, and in addition, some filter structures are comparatively complicated, and inconvenient change its filter core, and then can hinder filtration efficiency, the utility model discloses a new solution has been proposed to above problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the problem that exists among the prior art, the utility model provides an oil return filter to solve the technical problem who mentions in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an oil return filter, includes filter body, filter body includes casing and lower casing, goes up casing and lower body coupling, and the top of going up the casing is provided with the top cap, still is provided with respirator, breather and dipstick on going up the casing, and dipstick and respirator symmetry each other are connected with last casing, and breather sets up in the respirator below and is connected with last casing, and the internal portion of inferior valve is provided with the filter core.

Preferably, an oil inlet is formed in the upper shell, and an oil outlet corresponding to the oil inlet is formed in the lower shell.

In a further preferred embodiment, a first O-ring is provided at the connection of the top cover and the upper housing.

In a further preferred embodiment, a compression spring is arranged between the cover and the filter insert.

In a further preferred embodiment, the joint of the upper housing and the lower housing is provided with a second O-ring and a rubber gasket.

In a further preferred aspect, a receiving groove is provided extending upward from a lower end of the top cover, and the pressing spring is mounted in the receiving groove.

In a further preferred embodiment, a plastic cap is provided on the oil outlet.

(III) advantageous effects

Compared with the prior art, the utility model provides an oil return filter possesses following beneficial effect:

the components of the product part of the utility model are made of engineering plastics, so the weight is light; the oil level gauge has good mechanical strength and rigidity, and in addition, the upper shell is provided with the oil level gauge and the respirator, so that the functions of the oil level gauge are more diversified; in addition, the upper shell and the lower shell are arranged in a split mode, and the top cover and the upper shell are designed in a split mode, so that the product is convenient to install, and the filter element is easy to replace.

Drawings

FIG. 1 is a sectional view of the whole structure of the present invention;

fig. 2 is an overall structure front view of the present invention;

fig. 3 is a side view of the overall structure of the present invention.

In the figure: 1. an upper housing; 2. a lower housing; 3. a top cover; 4. a respirator; 5. a breather device; 6. an oil scale; 7. a filter element; 8. an oil inlet; 9. an oil outlet; 10. a first O-ring; 11. a compression spring; 12. a second O-ring; 13. a rubber pad; 14. a plastic plug cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-3, an oil return filter includes a filter body, the filter body includes an upper casing 1 and a lower casing 2, the upper casing 1 is connected to the lower casing 2, a top cover 3 is disposed on the top end of the upper casing 1, a breather 4, an air breather 5 and an oil level indicator 6 are further disposed on the upper casing 1, the oil level indicator 6 and the breather 4 are symmetrically connected to the upper casing 1, the breather 5 is disposed below the breather 4 and connected to the upper casing 1, and a filter element 7 is disposed inside the lower casing 2.

In this embodiment, an oil inlet 8 is provided on the upper housing 1, and an oil outlet 9 corresponding to the oil inlet 8 is provided on the lower housing 2. Thereby can be better oiling and the oil extraction, can filter fluid well.

In this embodiment, a first O-ring 10 is provided at the connection between the top cover 3 and the upper housing 1. The sealability between the top cover 3 and the upper case 1 is further improved.

In the present embodiment, a pressing spring 11 is provided between the top cover 3 and the filter element 7. The design of the compression spring 11 advantageously allows the top cover 3 to compress the filter insert 7, so that the filter insert 7 is more stable in the lower housing 2.

In this embodiment, a second O-ring 12 and a rubber pad 13 are disposed at the joint of the upper housing 1 and the lower housing 2. The sealability between the upper case 1 and the lower case 2 is further improved.

In this embodiment, a receiving groove is formed in the lower end surface of the top cover 3 to extend upward, and the pressing spring 11 is installed in the receiving groove. So that the pressing spring 11 can be mounted more easily.

In this embodiment, a plastic cap 14 is disposed on the oil outlet 9. Thereby preventing external dust from entering the filter element 7 and keeping the filter element 7 clean.

Example 2:

in conclusion, when the filter is used, oil is conveyed to the interior of the filter body through the oil inlet 8, the oil is filtered through the filter element 7, the oil is discharged outwards through the oil outlet 9 after the filtering is finished, during the assembly, a 60 × 3 sealing ring is arranged on the lower shell 2, lubricating grease is coated on the sealing ring, the lower shell 2 is arranged on the upper shell 1, the upper cover 3 is provided with the extrusion spring 11, the filter element 7 is arranged on the lower shell 2, the thread of the top cover 3 is provided with the sealing O-shaped ring, the extrusion spring 11 is pressed down on the filter element 7, the top cover 3 is used for prompting and screwing, then the sealing gasket 13 is arranged in the sealing groove of the upper shell 1, the type of the sealing gasket 13 is preferably RAF0090-0005, and the respirator 4 and the oil level gauge 6 are respectively packaged into PE bags by using nylon ribbons for fixing. The oil inlet 8 and the oil outlet 9 are plugged by a T-170 plastic plugging cap after being placed in the inner box and finally by a yellow plastic plugging cap 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An oil return filter comprises a filter body and is characterized in that the filter body comprises an upper shell and a lower shell, the upper shell is connected with the lower shell, a top cover is arranged at the top end of the upper shell, a breather and an oil level gauge are further arranged on the upper shell, the oil level gauge and the breather are symmetrically connected with the upper shell, the breather is arranged below the breather and connected with the upper shell, and a filter element is arranged inside the lower shell; a first O-shaped ring is arranged at the joint of the top cover and the upper shell; an extrusion spring is arranged between the top cover and the filter element; the lower extreme of top cap upwards extends and is provided with the holding tank, extrusion spring installs in the holding tank.

2. The oil return filter according to claim 1, wherein: an oil inlet is formed in the upper shell, and an oil outlet corresponding to the oil inlet is formed in the lower shell.

3. The oil return filter according to claim 1, wherein: and a second O-shaped ring and a rubber pad are arranged at the joint of the upper shell and the lower shell.

4. The oil return filter of claim 2, wherein: and a plastic plug cap is arranged on the oil outlet.