Abstract: An electrical connector includes a conductive housing having a first receiving portion with an open end, a movable terminal having a first end inserted into the first receiving portion via the open end, the movable terminal having a second receiving portion, and a first elastic piece located in a space defined by the first receiving portion and the second receiving portion. A second end of the movable terminal opposite to the first end protrudes movably out of the first receiving portion against an elasticity of the first elastic piece. The first end of the movable terminal has a first elastic arm elastically abutting an inner side wall of the first receiving portion. The movable terminal is electrically connected to the conductive housing by each of the first elastic piece and the first elastic arm.

Abstract: An electrical connector includes a conductive housing having a first receiving portion with an open end, a movable terminal having a first end inserted into the first receiving portion via the open end, the movable terminal having a second receiving portion, and a first elastic piece located in a space defined by the first receiving portion and the second receiving portion. A second end of the movable terminal opposite to the first end protrudes movably out of the first receiving portion against an elasticity of the first elastic piece. The first end of the movable terminal has a first elastic arm elastically abutting an inner side wall of the first receiving portion. The movable terminal is electrically connected to the conductive housing by each of the first elastic piece and the first elastic arm.

Abstract: A connector adapter includes a first sub-adapter directly and electrically connected with a first end of a connector and a second sub-adapter directly and electrically connected with a second end of the connector. The first end of the connector is electrically connected to a first cable through the first sub-adapter and to a test equipment through the first cable. The second end of the connector is electrically connected to a second cable through the second sub-adapter and to the test equipment through the second cable.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: The multi-way valve comprises an upper valve body, a lower valve body and a rotary valve core. A valve seat ring is located in the rotary valve core and comprises a body. A first annular boss is arranged on an outer wall of the body, and a second annular boss is arranged on an inner wall. The upper surfaces of the first annular boss and the second annular boss are respectively flush with the upper surface of the body to form a sealing surface which fits with a sealing surface of the upper valve body in a sealed manner. An annular gap is formed between the lower surface of the first annular boss and the rotary valve core, so that liquid in the chamber and an oil incoming channel respectively acts on the lower surface of the first annular boss or the second annular boss to form a sealing load.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: Disclosed are a valve seat ring and a multi-way valve having the valve seat ring. The multi-way valve comprises an upper valve body, a lower valve body and a rotary valve core, wherein the valve seat ring is located in the rotary valve core, the valve seat ring comprises a body, the body is provided with a penetrated through-hole, a first annular boss is arranged on an outer wall of the body, and a second annular boss is arranged on an inner wall; the upper surfaces of the first annular boss and the second annular boss are respectively flush with the upper surface of the body to form a sealing surface which fits with a sealing surface of the upper valve body in a sealed manner; and an annular gap is formed between the lower surface of the first annular boss and the rotary valve core, so that liquid in the chamber and an oil incoming channel respectively acts on the lower surface of the first annular boss or the second annular boss to form a sealing load.