353results about How to "Won't slide" patented technology

An object of this invention is to provide such a welded structure of and welding method for two metallic parts fitted together at a tubular section in a high-pressure fuel supply pump, that enables rapid joining of both metallic parts by staking (press-fitting included), screw fastening, and / or laser welding, offers high welding strength and sufficient fluid sealability, and keeps the metallic materials free from thermal changes in composition. While an electric current is supplied to any one of the welding connection surfaces formed between a pump housing and cylinder in a high-pressure fuel supply pump, between the pump housing and an installation flange, between the pump housing and an intake or discharge joint, between the pump housing and a pulsation-absorbing damper cover, between the pump housing and a relief valve mechanism, and between the pump housing and an electromagnetically driven intake valve mechanism, the particular two sections are pressed against each other to generate, along the connection surface, a plastic flow not causing melting or fusion due to heat, and form a diffusion-weld region at the connection surface by using the plastic flow and the application of the pressure.

The invention provides a ramp starting method of an electric drive tramcar for preventing sliding on a ramp, and belongs to the technical field of engineering machinery. The ramp starting method comprises the following steps of: calculating an estimated gravity component Gsin theta when a vehicle travels on the ramp through a formula: F-(Gsin theta+f)=ma, wherein F is motor torque; G is gravity of the vehicle; theta is gradient of the ramp; f is resistance; m is mass and alpha is acceleration; calculating drive force required when the vehicle starts on the ramp, wherein the drive force is greater than 0.9-1.2 times of estimated gravity component. An additional sensor does not need to be added; the motor drive force with certain accuracy is calculated out by equipment of the vehicle; a certain car sense of a driver is ensured, and the vehicle does not slide on the ramp, thereby playing a starting-assisting function.

An assembly providing a first annular shield including a sleeve portion integral with a rotating member and with a flange portion, which radially extends to protrude from the first sleeve portion; a second annular shield having a sleeve portion integral with a stationary member and with a flange portion that radially extends to protrude on the opposite side of the sleeve portion of the first shield and facing the flange portion; and an annular seal, which the flange portion of the first shield ends with an L-shaped annular portion that protrudingly radially and axially extends out of an annular gap delimited between the rotating and stationary members to define an L-shaped channel in radial section having constant width and forming a first labyrinth seal; the channel leads into an annular recess, delimited between the second shield and a first lip of the annular seal without contacting the first shield.

The invention discloses power supply equipment with a telescopic dustproof cover and a use method of the power supply equipment. The power supply equipment comprises a power use component (8) and a power supply component (9), wherein the power use component (8) comprises a first shell (81) and a first electrical interface (82) formed inside the first shell (81); an opening is formed in the side surface facing to the power supply component (9), of the first shell (81); locking bulges which are arranged above and below the opening and are provided with locking inclined surfaces (811) are respectively arranged on the side surface facing to the power supply component (9), of the first shell (81); the power supply component (9) comprises a second shell with an upper side wall (91) and a lower side wall (93); a cavity is formed between the upper side wall (91) and the lower side wall (93) of the shell; a power supply sliding block (97) which is connected with a power supply through a telescopic lead (970) and can slide is arranged inside the cavity.

The invention provides a power supply device with elastic projections and a usage method thereof. The device comprises a power utilization side part (8) and a power supplying side part (9). The power utilization side part (8) comprises a first housing (81) and a first electric interface (82) arranged in the first housing (81). Elastic projections (200) are arranged on the upper part and the lower part in the first electric interface (82). The side surface, facing the power supplying side part (9), of the first housing (81) is provided with an opening and locking projections which are arranged above and below the opening and provided with locking inclined surfaces (811). The power supplying side part (9) comprises a second housing provided with an upper side wall (91) and a lower side wall (93). The second housing is provided with a cavity arranged between the upper side wall (91) and the lower side wall (93), and a slidable power supply slide block (97) connected with a power supply through a telescopic lead (970) is arranged in the cavity.

The invention discloses a bathroom cabinet having a foot pad base with adjustable height. The bathroom cabinet comprises a wall body, a cabinet body is fixed on the wall surface of the wall body, a basin is fixed on the top surface of the cabinet body, lateral moving through grooves are formed in the left and right sides of a bottom plate of the cabinet body, moving supporting plates are fixed onthe front portion and the rear portion of the top surface of the bottom plate of the cabinet body at the lateral moving through grooves, the two ends of a transverse screw are hinged to the two movingsupporting plates, a main driving motor is fixed on the outer side wall of the moving supporting plate at the rear side, an output shaft of the main driving motor is a spline shaft, the spline shaftis inserted into a spline hole in the rear end of the transverse screw, moving blocks are screwed into the corresponding transverse screw, and the moving blocks are inserted in the corresponding lateral moving through grooves. According to the bathroom cabinet, the foot pad base can be automatically extended out of the lower portion of the cabinet body, the height of a lifting board can be adjusted according to the different heights of children, a child can stand on the lifting board conveniently during the face washing, the sliding of the bathroom cabinet is prevented, and the bathroom cabinet is safe and has good effect.