CN2380755Y

CN2380755Y - Leakage-free valve

Info

Publication number: CN2380755Y
Application number: CN 99215494
Authority: CN
Inventors: 伍小峙
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-03
Filing date: 1999-07-03
Publication date: 2000-05-31
Anticipated expiration: 2009-07-03

Abstract

The utility model discloses a non-leakage valve, which comprises a valve body, a valve clack opening and closing the valve and a valve rod controlling the valve clack. The utility model is characterized in that the utility model is also provided with an isloation sleeve made of non-magnetic metal, wherein, the isolation sleeve and the valve body are hermetically formed to be whole, and one to four pairs of permanent magnets are arranged on the valve rod. One to four pairs of permanent magnets are correspondingly at the outer side of the isolation sleeve, the polarities of the adjacent permanent magnets are different, matched threads and nuts are respectively arranged at the lower end of the valve rod and at the inner side of the isolation sleeve, and a handle is arranged on the permanent magnet at the outer side of the isolation sleeve, wherein, the handle can rotate the permanent magnet. The utility model has the advantages of safety, energy saving, easy maintenance, long service life, etc. and is especially suitable for the valves in pipeline systems which are completely sealed and do not admit leakage.

Description

Leakage-free valve

The utility model relates to a kind of valve, particularly a kind of leakage-free valve.

Existing manually-operated gate mostly is that manpower directly acts on the valve shaft, and valve shaft seals by filler, in use, since gas during the wearing and tearing of filler make in the valve or liquid from valve shaft to external leakage, often need frequently change filler, cause a large amount of energy wastes otherwise influence to produce consequently, as carry inflammable, explosive and toxic gas or liquid, also easily accidents caused, cause personal injury and property loss or befouling environment.

The purpose of this utility model provides a kind of leakage-free valve that does not need the magnetic control of filler.

For realizing the purpose of this utility model, the technical solution of the utility model is: a kind of leakage-free valve, comprise a valve body, on valve body, have an entrance point and an outlet end, one is used to that entrance point and outlet end are communicated with or the flap of disconnection, the valve rod of control flap, it also has one by the metal separation sleeve of no magnetic, separation sleeve becomes an integral body with valve seal, valve rod is arranged in the separation sleeve, 1-4 is installed to permanent magnet on the valve rod, adjacent permanent polarity outwardly is different, 1-4 is installed accordingly to permanent magnet in the outside of separation sleeve, adjacent permanent polarity inwardly is different, be carved with screw thread on the valve rod of permanent magnet lower end, the nut that is complementary with screw thread is carved with in the inboard, lower end of separation sleeve, on the permanent magnet in the separation sleeve outside handle that can make its rotation is installed.

Effect of the present utility model is: 1, separation sleeve becomes an integral body with valve seal, thereby can not leak, and is safe and reliable; 2, adopt the unlatching closure of magnetic force control valve, do not need filler, thereby long service life, for ease of maintenaince.

Below in conjunction with accompanying drawing the utility model is further elaborated:

Accompanying drawing 1 is a longitdinal cross-section diagram of the present utility model.

Accompanying drawing 2 is the view in transverse section of A-A position shown in the utility model accompanying drawing 1.

As shown in Figures 1 and 2: the utility model comprises valve body 1, on valve body 1, have an entrance point 2 and an outlet end 3, one is used to that entrance point 2 and outlet end 3 are communicated with or the flap 4 of disconnection, the valve rod 5 of control flap 4, it also has one by the metal separation sleeve 6 of no magnetic, separation sleeve 6 is sealed to an integral body with valve body 1, valve rod 5 is arranged in the separation sleeve 6, valve rod 5 is equipped with 2 pairs of permanent magnets 7, adjacent permanent polarity outwardly is different, in the outside of separation sleeve 62 pairs of permanent magnets 8 are installed accordingly, adjacent permanent polarity inwardly is different, be carved with screw thread 9 on the valve rod 5 of permanent magnet 7 lower ends, the nut 10 that is complementary with screw thread 9 is carved with in the inboard, lower end of separation sleeve 6, and a handle 11 that can make its rotation is installed on the permanent magnet 8 in separation sleeve 6 outsides.

During use, as valve 1 being closed, handle 11 is rotated in the direction of the clock, permanent magnet 7 on the valve rod 5 is also clockwise direction rotation under magnetic force, drive valve rod 5 to backspin, thereby reach the purpose of throttle down 1, as need valve 1 is opened, rotation gets final product only to need to connect handle 11 counterclockwise.

Permanent magnet of the present utility model can be made by rare earth ammonium iron boron material.

Claims

1, a kind of leakage-free valve, comprise a valve body, on valve body, have an entrance point and an outlet end, one is used to that entrance point and outlet end are communicated with or the flap of disconnection, the valve rod of control flap, it is characterized in that: it also has one by the metal separation sleeve of no magnetic, separation sleeve becomes an integral body with valve seal, valve rod is arranged in the separation sleeve, 1-4 is installed to permanent magnet on the valve rod, adjacent permanent polarity outwardly is different, 1-4 is installed accordingly to permanent magnet in the outside of separation sleeve, adjacent permanent polarity inwardly is different, is carved with screw thread on the valve rod of permanent magnet lower end, the nut that is complementary with screw thread is carved with in the inboard, lower end of separation sleeve, on the permanent magnet in the separation sleeve outside handle that can make its rotation is installed.

2, by the described leakage-free valve of claim 1, it is characterized in that: described permanent magnet is made by the rare-earth Nd-Fe-B material.