3results about How to "Increase magnetic attraction" patented technology

This invention belongs to the field of solenoid valve technology, specifically providing a solenoid valve. The invention aims to solve the problem of high processing costs in existing solenoid valves. To this end, the solenoid valve of this invention includes a valve body, a valve core, and an elastic member. The valve body defines a first inlet / outlet, a second inlet / outlet, and a receiving cavity. The valve core is movably disposed in the receiving cavity, dividing the receiving cavity into an inlet / outlet communication area and an inlet / outlet isolation area, the inlet / outlet communication area being connected to the first and second inlets / outlets respectively. The elastic member is arranged in the inlet / outlet isolation area and includes a fixed ring fixedly connected to the valve body and multiple elastic arms fixedly connected to or integrally formed with the fixed ring. The elastic arms extend radially inward toward the valve core and abut against the valve core, so that the elastic member drives the valve core through the elastic arms to block the air passage between the first and second inlets / outlets. This invention reduces the processing cost of the solenoid valve.

The utility model discloses a level, belong to manual measuring tool, the present level's magnet steel is fixed in the blind hole of the ruler body with the mode such as embedding, bonding, is not firm, the utility model discloses a magnet steel is fixed in the ruler body through fixed structure, and the fixed structure includes first accommodating hole, second accommodating hole and seat, and the first accommodating hole extends from the side of the ruler body to the inside of the ruler body, and the second accommodating hole intersects with the first accommodating hole and extends from the inside of the ruler body to the bottom surface, and the seat is located in the first accommodating hole, and the contour of the seat is greater than the contour of the second accommodating hole, and the magnet steel is fixed in the seat and is located in the second accommodating hole, and the first accommodating hole is sealed and covered and is blocked. The seat can not be separated from the first accommodating hole through the second accommodating hole. The magnet steel fixed in the seat can be more firmly and reliably assembled with the seat, which is different from the firmness caused by embedding and bonding the magnet steel in the blind hole of the ruler body, so that the magnet steel can be firmly and reliably assembled in the ruler body when being fixed in the seat and located in the second accommodating hole.

The utility model relates to an electromagnetic switch and storage box, including electromagnet subassembly and permanent magnet subassembly, electromagnet subassembly includes at least two in first direction sequential interval arrangement's magnetic core, wherein two adjacent magnetic core is first magnetic core and second magnetic core, and the first magnetic core and second magnetic core are wound with coil, and permanent magnet subassembly has at least first magnetic pole, second magnetic pole, third magnetic pole and fourth magnetic pole.