Solenoid valve

A solenoid valve formed by coupling a main valve unit that includes a valve member movable to open and close a flow path and an electromagnetic operation unit that causes, by using an electromagnetic force, the valve member to perform opening and closing operations to each other,

• wherein the main valve unit includes a valve body in which the valve member is disposed, and the valve body includes a coupling portion for coupling the electromagnetic operation unit, the coupling portion having a front surface in which a coupling groove is formed and a rear surface in which a coupling groove is formed,
• wherein the electromagnetic operation unit includes a magnetic cover that has a quadrangular box shape and that covers the electromagnetic operation unit,
• wherein the magnetic cover has a rectangular upper surface wall, a rectangular front surface wall, a rectangular rear surface wall, a rectangular left surface wall, and a rectangular right surface wall, and the upper surface wall, the front surface wall, the rear surface wall, the left surface wall, and the right surface wall are integrally formed by bending a single metal plate,
• wherein a lower surface of the magnetic cover is open, and the coupling portion of the valve body is fitted into the magnetic cover through the lower surface,
• wherein the front surface wall of the magnetic cover is formed by bringing a rectangular first front-surface half wall that is integrally contiguous to a front end of the left surface wall and a rectangular second front-surface half wall that is integrally contiguous to a front end of the right surface wall into contact with each other at a joint, and the rear surface wall is formed by bringing a rectangular first rear-surface half wall that is integrally contiguous to a rear end of the left surface wall and a rectangular second rear-surface half wall that is integrally contiguous to a rear end of the right surface wall into contact with each other at a joint,
• wherein latch recesses or latch protrusions that are formed in or on an upper end portion of the first front-surface half wall and an upper end portion of the second front-surface half wall and latch protrusions or latch recesses that are formed on or in a front end portion of the upper surface wall are latched together at a front ridge portion at which the upper surface wall and the front surface wall are in contact with each other, and latch recesses or latch protrusions that are formed in or on an upper end portion of the first rear-surface half wall and an upper end portion of the second rear-surface half wall and latch protrusions or latch recesses that are formed on or in a rear end portion of the upper surface wall are latched together at a rear ridge portion at which the upper surface wall and the rear surface wall are in contact with each other, and
• wherein, in a lower end portion of the magnetic cover, hook portions for engagement are formed on a lower end portion of the first front-surface half wall and a lower end portion of the second front-surface half wall of the front surface wall in such a manner as to be contiguous to each other via the corresponding joint, and hook portions for engagement are formed on a lower end portion of the first rear-surface half wall and a lower end portion of the second rear-surface half wall of the rear surface wall in such a manner as to be contiguous to each other via the corresponding joint, and
• wherein the hook portions are folded and engaged into the coupling grooves formed in the coupling portion of the valve body such that the main valve unit and the electromagnetic operation unit are coupled to each other.