TH65719B - Valve with lead function - Google Patents

Abstract

DC60 (23/11/55) In a pilot valve comprising a main valve member having a guided port and a sub-valve member which opens and closes the guide port by moving relative to the main valve member. The present invention is intended to provide a pilot valve which achieves size reduction and which, when the sub-valve member and the main valve member are assembled in such a way as to limit their relative movement, is therefore facilitated in assembling them. One main valve member 78 and one sub-valve member 79 are provided with a groove section 90 and the other is provided with an insertion section 91. Rings 98 are fitted in tubular grooves 97, the rings 98 being flexibly deformable such that the rings 98 are extendable or contractable. Tubular grooves 97 are provided on one side around the inside of the groove section 90 and on the outside of the section. For insertion 91 , engagement protrusions 99 extend over the inner circumference of the grooved portion 90 and the outer circumference of the insertion portion 91 . The engagement protrusions 99 are constructed to move over the ring 98 during assembly by inserting the insertion portion 91 into the grooved portion 90 . As the sub-valve assembly 79 moves laterally to open the guideway 80 , the engagement protrusions 99 are engaged by the ring 98 so as to move the main valve assembly 78 to the open position following the opening of the guideway 80 . In a guided valve comprising a main valve assembly having guided ports and a sub-valve assembly that opens and closes the guideway by moving relative to each other over a predetermined range relative to the main valve assembly , the present invention is intended to provide a guided valve which achieves size reduction and in which, when the reduced valve assembly and main valve assembly are assembled in such a way as to limit their relative movement, assembly operations are carried out easily. One of the main valve members 78 and the sub-valve members 79 is provided with a groove section 90 and the other is provided with an insertion section 91. The ring (98) is mounted in a tubular groove 97, the ring 98 being flexibly deformable such that the ring 98 expands or contracts. Tubular grooves 97 are provided in one section around the inside of the groove section 90 and in the outside of the insertion section 91. The engagement projections 99 extend over the inside of the groove section 90 and in the outside of the insertion section 91. The engagement projections 99 are contoured to move over the ring 98 during the It is assembled by inserting the insertion portion 91 into the groove portion 90 , when the sub-valve assembly (79) is moved laterally to open the guide port 80 , the engagement portion 99 is engaged by a ring 98 to cause the main valve assembly 78 to move to the open valve position after opening the guide port 80 .

Claims (1)

1. A valve having a guiding function comprising a main valve member (78) capable of moving along the centerline of the valve to facilitate the flow of fluid and to block the flow, and having a guide channel (80) provided on the centerline, and a subsidiary valve member (79) capable of moving in the direction along the centerline within a specified range relative to the main valve member (78), and which opens and closes the channels (80) by relative movement, and is characterized in that one member of the main valve member (78) and the subsidiary valve member (79) is provided with a groove section (90) coaxial with the centerline, and the other member of the main valve member (78) and the subsidiary valve member (79) is provided with an insertion section (91) constructed to be inserted into the groove section (90), the ring (98) being fitted in the tubular groove. (97) such that a portion of the ring (98) extends outward from the tubular groove (97) when no external force is applied, and the ring (98) is elastically deformable such that the ring (98) expands or contracts by the application of an external force, and the tubular groove (97) is provided in one section around the inside of the grooved portion (90) and around the outside of the insertion member (91). The engagement member (99) extends on the inside of the grooved portion (90) and around the outside of the insertion member (91). The engagement member (99) is contoured to move over the ring (98) by the application of an external force to the ring (98) when the valve member (79) is It is assembled by inserting the insertion part (91) into the groove part (90), and the relative positions of the ring (98) and the engagement projections (99) in such a way that when the main valve assembly (78) and the subsidiary valve assembly (79) are assembled, a gap is formed between the ring (98) and the engagement projections (99) in the direction in which the main valve assembly (78) and the subsidiary valve assembly (79) move, and when the subsidiary valve assembly (79) is moved laterally to open the guide (80), the engagement projections (99) are engaged by the ring (98) to cause the main valve assembly (78) to move to the open valve position after opening the guide (80).