CN201108773Y

CN201108773Y - Filtering element end cap capable of closing oil inlet valve automatically

Info

Publication number: CN201108773Y
Application number: CNU200720042368XU
Authority: CN
Inventors: 叶萍; 易际川; 姚银军
Original assignee: CHINA LEEMIN HYDRAULIC Co Ltd
Current assignee: CHINA LEEMIN HYDRAULIC Co Ltd
Priority date: 2007-11-18
Filing date: 2007-11-18
Publication date: 2008-09-03
Anticipated expiration: 2017-11-18

Abstract

The utility model discloses a filter core end cover which can automatically shut an oil inlet valve and relates to the technical field of the filter core end cover and comprises a filter core end cover body; wherein, a core shaft is arranged at the middle of the filter core end cover body; two semicircular valve core sheets which can rotate around the core shaft are positioned on the core shaft, and the sizes of the two semicircular valve core sheets are matched with the channel of the filter core end cover and the two semicircular valve core sheets can close the channel of the filter core end cover; a torsion spring is also mounted on the core shaft and the two semicircular valve core sheets are respectively pressed by both ends of the torsion spring; with the shutting and opening effect of the two semicircular valve core sheets, the pollutants blocked at the surface by the filter core and the media in the inner cavity of the filter core can be taken out together with the filter core when replacing the filter core so as to ensure the cleanliness of the system.

Description

Can close the filter core end cap of oil-feed valve automatically

Affiliated technical field

The utility model relates to a kind of filter core end cap, especially a kind of media flow direction filter core end cap from inside to outside.

Background technology

At present, the mode that medium flows in filter core is divided into two kinds, and a kind of is the ecto-entad type of flow; The another kind introversive outer type of flow of serving as reasons.Existing filter core end cap is under the situation that does not install the oil-feed valve additional, after filter core work is stopped up, more during renew cartridge, because of filter core integral body is to be immersed in the medium, in renew cartridge process more, can be entered in system's fuel tank previous like this filtration work meeting partial failure along with the rising and the medium reverse flow of filter core by the part pollutant of filter core interception on the surface.

Summary of the invention

In order to overcome the irrationality of existing filter core end cover designs, promptly more during renew cartridge, can be risen along with filter core by the part pollutant of filter core interception and the medium reverse flow enters in system's fuel tank on the surface, make previous filtration work meeting partial failure.The utility model provides a kind of filter core end cap that can close the oil-feed valve automatically, this the filter core end cap that can close the oil-feed valve automatically can utilize the pressure that system media flows to open and close automatically, when renew cartridge more, taken out with filter core together at the pollutant on surface and the medium of filter core inner chamber by the filter core interception, can guarantee the cleannes of system.

The technical scheme that its technical problem that solves the utility model adopts is, a kind of filter core end cap that can close the oil-feed valve automatically, comprise filter core end cap main body, the middle part of filter core end cap main body is provided with mandrel, and mandrel is provided with two semicircle Valve core blades, and two semicircle Valve core blades can rotate around mandrel, the size of two semicircle Valve core blades and filter core end cap passage are complementary, can seal filter core end cap passage, also be provided with torsion spring on the mandrel, the two ends of torsion spring are pressed in respectively on two semi-circular Valve core blades.

The beneficial effects of the utility model are, because this filter core end cap that can close the oil-feed valve automatically comprises filter core end cap main body, the middle part of filter core end cap main body is provided with mandrel, mandrel is provided with two semicircle Valve core blades, also be provided with torsion spring on the mandrel, the two ends of torsion spring are pressed in respectively on two semi-circular Valve core blades, therefore, because the sealing and the unlatching effect of two semicircle Valve core blades, when renew cartridge more, can be taken out with filter core together at the pollutant on surface and the medium of filter core inner chamber by the filter core interception, can guarantee the cleannes of system.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structure chart that embodiment can close the filter core end cap of oil-feed valve automatically.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the structure chart of embodiment can close the filter core end cap of oil-feed valve automatically the oil-feed valve is opened automatically in the course of the work the time.

Fig. 4 is the structure chart of embodiment can close the filter core end cap of oil-feed valve automatically the oil-feed valve is closed automatically in the course of the work the time.

The specific embodiment

As shown in Figures 1 to 4, a kind of filter core end cap that can close the oil-feed valve automatically, comprise filter core end cap main body 1, the middle part of filter core end cap main body 1 is provided with mandrel 2, the two ends of mandrel 2 are stuck on the filter core end cap inwall, mandrel 2 is provided with two semicircle Valve core blades 4, the size of two semicircle Valve core blades 4 and filter core end cap passage are complementary, can seal filter core end cap passage, also be provided with torsion spring 3 on the mandrel 2, the two ends of torsion spring 3 are pressed in respectively on two semi-circular Valve core blades 4, two semicircle Valve core blades 4 can rotate around mandrel 2, under the pressure of torsion spring 3, two semi-circular Valve core blades 4 tightly lean against filter core end cap main body 1 bottom, play sealing process at ordinary times.

In when work, filter core end cap main body 1 is installed on the filter core 5 because the pressure of filter core end cap top media flow is greater than the elastic force of torsion spring 3, two Valve core blades 4 with mandrel 2 be the center downwards about unlatching, make medium pass through valve smoothly.Shutting down or more during renew cartridge, medium is no longer mobile, because the effect of the elastic force of torsion spring 3, two semi-circular Valve core blades 4 tightly lean against filter core end cap main body 1 bottom, and Valve core blade 4 is in closed condition.When renew cartridge more, because the sealing process of two semi-circular Valve core blades 4 is changed along with filter core takes out at the pollutant on surface and the medium of filter core inner chamber together by the filter core interception.The pollutant of guaranteeing filter core can not enter system's fuel tank, and the cleannes of system are guaranteed.

The above is a preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, do not break away under the prerequisite of the utility model principle; can also make some distortion and improvement, these also should be considered as belonging to protection domain of the present utility model.

Claims

1, a kind of filter core end cap that can close the oil-feed valve automatically, comprise filter core end cap main body (1), it is characterized in that: the middle part of filter core end cap main body (1) is provided with mandrel (2), mandrel (2) is provided with two semicircle Valve core blades (4), two semicircle Valve core blades (4) can rotate around mandrel (2), the size of two semicircle Valve core blades (4) and filter core end cap passage are complementary, can seal filter core end cap passage, also be provided with torsion spring (3) on the mandrel (2), the two ends of torsion spring (3) are pressed in respectively on two semi-circular Valve core blades (4).