Abstract: A stop valve is provided. A stop valve includes a valve body, a valve core and a connecting block. The valve body is provided with a first opening and a second opening. The valve core is movable in the valve body to communicate the first opening with the second opening and cut off a communication therebetween. One end of the connecting block is located outside the valve body, the other end thereof is fixedly connected to an end of the valve body. A part of the valve core extends into the connecting block and is in threaded fit with the connecting block. The connecting block extends towards the valve body to define a seal portion along an axis of the valve core. When the stop valve is in a fully opened state, the valve core is capable of abutting against the seal portion and forming a linear seal therewith.

Abstract: A stop valve, including: a valve tube, wherein two ends thereof are respectively an operating end and a plugging end, a side wall of the valve tube is provided with a first interface and a second interface, the second interface is close to the plugging end relative to the first interface, and a space between the second interface and the plugging end in the valve tube forms a buffer chamber; a base, used for plugging an opening of the plugging end; a sleeve ring, fixed in the cavity of the valve tube, the sleeve ring is provided with a valve port; and a valve core, disposed in the cavity of the valve tube, so as to close or open the valve port; and the valve tube and the base both are made of stainless steel.

Abstract: A stop valve and a refrigeration system having the same are provided. The stop valve includes: a valve body, which is provided with a valve port; and a valve core, which is at least partially provided inside the valve body and capable of moving in the valve body along an axis of the valve body to seal or open the valve port. A side of the valve core towards the valve port is provided with a first groove, a first sealing member is embedded in the first groove, the first sealing member is in interference fit with the first groove, a restricting portion is provided on the inner surface of the first groove, and the restricting portion can restrict the first sealing member.

Abstract: An anti-disassembly connector, including: a connecting portion, where a threaded connecting section is disposed on the connecting portion; and bosses, where the bosses protrude from an end or a peripheral wall of the connecting portion, each of the bosses extends along a circumferential edge or the peripheral wall of the connecting portion, each of the bosses has a force-bearing surface and a force-releasing surface that are disposed opposite to each other, at least two bosses are arranged, the two bosses are disposed at intervals along the circumferential edge or the peripheral wall of the connecting portion, and a gap between two adjacent bosses forms a clamping interval. A force-bearing sideline is formed on a side of the force-bearing surface away from an inner wall of the connecting portion, a length of the force-bearing sideline is L, and 5 mm<L<20 mm.

Abstract: An anti-disassembly connector, including: a connecting portion, wherein a threaded connecting segment is disposed on the connecting portion; and bosses, wherein the bosses protrude from an end portion or a peripheral wall of the connecting portion, the bosses extend along a circumferential edge of the connecting portion or the peripheral wall of the connecting portion, each of the bosses has a force-bearing surface and a force-releasing surface, which are disposed opposite to each other, at least two bosses are provided, the two bosses are disposed at intervals along the circumferential edge of the connecting portion or the peripheral wall of the connecting portion, and a gap between the two adjacent bosses forms a clamping interval; a junction of the force-bearing surface and the connecting portion is a circular arc transition; and/or, the junction of the force-releasing surface and the connecting portion is a circular arc transition.

Abstract: An anti-disassembly connector, including: a connecting portion; and at least two bosses, where the bosses protrude from an end or a peripheral wall of the connecting portion, the bosses extend along a circumferential edge of the connecting portion, each of the bosses has a force-bearing surface and a force-releasing surface that are disposed opposite to each other, and two bosses are disposed at intervals along the circumferential edge of the connecting portion or the peripheral wall of the connecting portion; and a force-bearing sideline is formed on a side of the force-bearing surface away from the connecting portion, a distance between force-bearing sidelines of the two bosses is clamping distance L, an outer diameter of each of the at least two bosses has D, and L<D.

Abstract: Provided is a stop valve, including: a valve seat provided with a fluid channel and a mounting hole, the fluid channel communicates with the mounting hole, and an extending direction of the mounting hole and an extending direction of the fluid channel are disposed at a preset angle; a valve core, which is mounted in the mounting hole, a connecting hole is formed in the valve core, and a first internal thread is disposed in the connecting hole; a plugging member, which includes a rod body part and a covering part, a first external thread matched with the first internal thread is disposed on the rod body part, the rod body part is connected with the connecting hole through threads, the covering part is disposed at an end portion of the rod body part, and the covering portion protrudes out of an end portion of the mounting hole.

Abstract: An anti-disassembly connector, including: a connecting portion; and at least two bosses, where the bosses protrude from an end or a peripheral wall of the connecting portion, the bosses extend along a circumferential edge of the connecting portion, each of the bosses has a force-bearing surface and a force-releasing surface that are disposed opposite to each other, and two bosses are disposed at intervals along the circumferential edge of the connecting portion or the peripheral wall of the connecting portion; and a force-bearing sideline is formed on a side of the force-bearing surface away from the connecting portion, a distance between force-bearing sidelines of the two bosses is clamping distance L, an outer diameter of each of the at least two bosses has D, and L<D.