61results about How to "Easy structure assembly" patented technology

The invention discloses a small-bore opposite type ultrasonic flowmeter. The small-bore opposite type ultrasonic flowmeter comprises a circuit box, a pipe section outer layer, a pipe section inner layer and transducer assemblies, wherein the circuit box is arranged on the pipe section outer layer; the pipe section inner layer is integrally formed by injection molding; a transducer mounting seat is formed at an end of the pipe section inner layer; the transducer assemblies are mounted in the mounting seat; the two pairs of transducer assemblies are arranged in pairs; and the pipe section inner layer is mounted in the pipe section outer layer. According to the ultrasonic flowmeter, ultrasonic waves are oppositely transmitted and received, energy loss is low, the pipe section outer layer can be a standard pipe fitting, and therefore, the costs are reduced. By the design of small step-free transducers, the problem that transducers cannot be mounted in small-diameter pipes is solved, pressure loss is reduced, water flows smoothly, and metering is accurate. The pipe section inner layer is assembled conveniently and quickly, is positioned accurately and is good in sealing. A whole cavity does not have water, transducer connecting lines are effectively prevented from being soaked in water, retractable space for deformation of the pipe section inner layer and tiny expansion caused by the reason that water is changed into ice is provided, and freezing is prevented effectively.

A rotor structure of a vehicular generator comprises a rotating shaft, a front claw pole, a rear claw pole, a rear bearing, a collector ring, and an exciting coil assembly, wherein the front claw pole, the rear claw pole, the rear bearing, the collector ring and the exciting coil assembly are disposed on the rotating shaft. The front claw pole, the rear claw pole and the exciting coil assembly are press-fitted in a whole through the rotating shaft. The rotor structure is characterized in that a channel forms between each two adjacent claws of the front and rear claw poles, a packaged permanent magnet is fixed in each channel and made with a metal support plate, a permanent magnet member and a bottom shell by injection moulding, each permanent magnet member is disposed between the corresponding metal support plate and the corresponding bottom shell, and the bottom shells are made of plastic or nylon material. The rotor structure is simple to assemble, and damage of the permanent magnet member is prevented; compared to the existing rotor structure, the rotor structure has the advantages that yield of rotor production is increased and generator failure caused by the damage of the permanent magnet members occurs less likely.

An independent auto glass lifter switch comprises a base (3), an ejector pin (4), a dynamic contact piece (6), a shell body (2) and a button (1); the upper end face of the base (3) is provided with static contact pieces (7,7a), and the lower end face is provided with a pin (33) conductively communicated with the static contact pieces (7,7a); the shell body (2) is arranged at the upper end part ofthe base (3); besides, the button is rotatably arranged at the upper end part of the shell body (2) and can drive the ejector pin (4), so that the ejector pin (4) can drive the dynamic contact piece (6) to achieve the connection and disconnection between the dynamic contact piece (6) and the static contact pieces (7,7a). The independent auto glass lifter switch is characterized in that the switchalso comprises a flexible insulator (5) arranged at the upper end face of the base (3) and contained in the shell body (2); the lower end face of the flexible insulator (5) is provided with the dynamic contact piece (6) corresponding to the static contact pieces (7,7a); and the upper end face of the flexible insulator (5) and the ejector pin (4) prop each other. Compared with the prior art, the independent auto glass lifter switch has the advantages that the switch has no spring reset mechanism and is restored, transited and driven through the flexible insulator; besides, the entire structureis compact and smart and is suitable for thinned and miniaturized product design.

The invention relates to a winch brake which comprises a drive seat, an inverse expansion torsion spring, a driven seat, and a brake sleeve. The drive seat and the driven seat are coaxially connected and rotate relative to each other. The inverse expansion torsion spring is connected to a column section of the drive seat and a column section of the driven seat in a sleeved mode. The drive seat, the inverse expansion torsion spring and the driven seat constitute a whole body and are arranged in the brake sleeve. An outer ring of the inverse expansion torsion spring is in friction contact with the inner wall of the brake sleeve in an initial state, and the initial friction force is smaller than the friction force formed by the inverse expansion torsion spring and the inner wall of the brake sleeve at braking time. A flange blocking a corresponding bending foot bending part is arranged on the circumferential face of the column section of the driven seat and on one side where a bending foot groove pushes a corresponding bending foot to enable the inverse expansion torsion spring to expand. The size of the outer diameter formed by the flange relative to the axis of the driven seat is not smaller than the radius of the outer ring of the inverse expansion torsion spring. Through the flange, the inverse expansion torsion spring can still be driven to realize brake when the bending foot of the torsion spring is damaged, so that the stability and the reliability of the winch brake are improved, and traction is prevented from failing. The winch brake is suitable for various winch brake devices or structural improvement of like products.