JPH0441172U

JPH0441172U -

Info

Publication number: JPH0441172U
Application number: JP8274590U
Authority: JP
Priority date: 1990-08-06
Filing date: 1990-08-06
Publication date: 1992-04-08

Description

[Brief explanation of drawings]

第１図Ａ，Ｂ、第２図Ａ，Ｂ及び第３図Ａ，Ｂ
は本考案の一実施例を示す逆止弁の三つの異つた
動作説明図で、各図Ａは歯車駆動部の動作説明図
、各図Ｂは逆止弁部の動作説明図である。１……本体、２ａ，２ｂ……弁座、３ａ，３ｂ
……弁体、４ａ，４ｂ……弁軸、５ａ，５ｂ……
平歯車、６……駆動用平歯車、７……駆動軸、７
ａ……爪、８……凹所、８ａ，８ｂ……端部。 Figure 1 A, B, Figure 2 A, B and Figure 3 A, B
3A and 3B are diagrams illustrating three different operations of a check valve according to an embodiment of the present invention, each diagram A is an explanatory diagram of the operation of a gear drive section, and each diagram B is an explanatory diagram of the operation of the check valve section. 1...Main body, 2a, 2b...Valve seat, 3a, 3b
...Valve body, 4a, 4b...Valve shaft, 5a, 5b...
Spur gear, 6... Drive spur gear, 7... Drive shaft, 7
a...claw, 8...recess, 8a, 8b...end.

Claims

[Scope of utility model registration request]

Two valve seats are arranged side by side inside the main body, and two check valve bodies are used to open and close each valve seat from the same direction.
It is supported by two valve shafts that are interlocked through mutually meshing gears, and these gears are internally connected to each other.
A driving gear that accommodates a drive shaft having a pawl and has a recess in the rotational direction that engages with the pawl is engaged with the driving gear, and a locking position between the pawl of the drive shaft and the recess of the drive gear is set. A fluid controllable check valve characterized by being able to switch between a check operation and a control operation in one unit by changing the change.