JPS6191670U

JPS6191670U -

Info

Publication number: JPS6191670U
Application number: JP17597884U
Authority: JP
Priority date: 1984-11-20
Filing date: 1984-11-20
Publication date: 1986-06-13
Also published as: JPH028134Y2

Description

[Brief explanation of the drawing]

第１図は本考案のバルブ装置の実施例を示す断
面図、第２図は第１図−線に沿う断面図、第
３図は第１図及び第２図の要部拡大図、第４図は
第２の実施例に係るバルブ装置のシール部の断面
構造を示す図、第５図はクラツシユリングの底面
図、第６図及び第７図はそれぞれ第３及び第４の
実施例に係るバルブ装置のシール部の断面構造を
示す図、第８図及び第９図はそれぞれ第５及び第
６の実施例に係るバルブ装置の断面図、第１０図
は更に異なる実施例に用いられる弁体の斜視図、
第１１図は第１０図−線に沿う断面図で
ある。１０……バルブ装置、１２……ホツパ、１４…
…配管、１６……バルブハウジング、１８……弁
体、２０……流入口、２４……流出口、３６，３
８……回転軸、４４，４６……ベアリング、５４
……モータ、６０……第１のリング、６２……第
２のリング、６３……凹部、６４……シールリン
グ、６６……コイルばね、６８……第１の連通孔
、７２……第２の連通孔、７４……第１のクラツ
シユリング、７６……第２のクラツシユリング。 Fig. 1 is a sectional view showing an embodiment of the valve device of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is an enlarged view of the main parts of Figs. The figure shows the cross-sectional structure of the sealing part of the valve device according to the second embodiment, FIG. 5 is a bottom view of the crush ring, and FIGS. 8 and 9 are cross-sectional views of the valve devices according to the fifth and sixth embodiments, respectively, and FIG. 10 is a diagram showing the sectional structure of the seal portion of the valve device, and FIG. 10 is a diagram showing the valve device used in a further different embodiment. perspective view of the body,
FIG. 11 is a cross-sectional view taken along the line of FIG. 10. 10...Valve device, 12...Hopper, 14...
... Piping, 16 ... Valve housing, 18 ... Valve body, 20 ... Inflow port, 24 ... Outlet port, 36, 3
8... Rotating shaft, 44, 46... Bearing, 54
... Motor, 60 ... First ring, 62 ... Second ring, 63 ... Recess, 64 ... Seal ring, 66 ... Coil spring, 68 ... First communication hole, 72 ... No. 2 communication hole, 74...first crushing ring, 76...second crushing ring.

Claims

[Claims for Utility Model Registration] (1) A valve device for controlling the flow of powder or granular material, which includes a valve housing having an inlet and an outlet for the powder or granular material, and a valve housing having an inlet and an outlet for the powder or granular material downstream of the inlet in the flow direction of the powder or granular material. In a valve device, the valve device includes a valve body for opening and closing an inlet that slides in contact with a side opening edge, and a seal portion provided at a sliding contact portion of the valve body on a peripheral edge of the inlet opening of the valve housing, the seal portion comprising: A recess surrounding the inlet, a seal ring fitted into the recess so as to be movable in the direction of contact with and away from the valve body, and a seal ring interposed between the seal ring and the bottom of the recess to remove the seal ring from the valve body. a sealing return member that returns and holds the sealing at a position separated by a predetermined distance, a communication hole for extruding the sealing ring that communicates the inside of the recess with the outside of the valve housing, and both side portions of the recess. A valve device comprising a fluid ejection communication hole communicating with the outside of the valve housing. (2) A ring-shaped crush ring that goes around the inlet is installed along both sides of the recess, and the gap between the valve body facing surface and the valve body surface of the crush ring is such that the distance between the valve body facing surface and the valve body surface is The valve device according to claim 1, characterized in that the valve device has a shape that gradually becomes larger as the distance from the recessed portion increases. (3) The valve device according to claim 2 of the utility model registration, characterized in that a groove is carved on the face of the crushing ring facing the valve body.