56results about How to "Small opening and closing force" patented technology

The invention discloses a damping device for a sliding door. The damping device comprises an immobile part, a movable part, a toggling mechanism and a damping mechanism; the toggling mechanism comprises a fixed part and a toggling part; the damping mechanism comprises an oscillating member which is arranged on a fixed seat through a spring in a sliding manner, wherein the oscillating member is provided with a locating gap buckled with the toggling part in a collision way, the fixed seat is provided with a damper, a piston rod of the damper protrudes towards the direction of the oscillating member and at least one section of travel of the piston rod acts on the oscillating member when the damper is used for buffering; the spring is a tension spring, one end of the spring is connected with the fixed seat, and the other end of the spring wound around a turning member on the fixed seat and then is connected with the oscillating member; the toggling mechanism is arranged on the immobile part, the damping mechanism is arranged on the movable part and is provided with a damping roller, or the toggling mechanism is arranged on the movable part and is provided with a toggling roller, the damping mechanism is arranged on the immobile part, and either the damping roller or the toggling roller is rotationally located on the immobile part and / or the toggling mechanism when the movable part moves. The damping device is strong in practicality.

A novel double-stage flexible flapper device suitable for a bidirectional pumping station and its operating method, comprising a central shaft, a deflector, a double-stage flapper, a large spring, a magnetic plate and a water pump top cover. The two-stage flexible flapper device is a detachable structure. Each flapper is composed of two separate flappers. The outer side of a single flapper adopts a 1 / 4 circular surface shape and is set directly above the water outlet bell mouth. It is connected to the central axis and can move spirally around the central axis, and the weight of the second-stage flap door is greater than that of the first-stage flap door. There are magnetic plates in the single flap door and the top cover of the water pump, and the single flap door and the top cover of the flap door Large springs are arranged obliquely between them. The whole device realizes graded outflow and graded cutoff through the balance relationship between the flapper's own weight, spring force (pull force), magnetic plate attraction and water pressure. The invention has a simple structure and a novel concept, and can ensure that the flap door can be opened smoothly and in time when the machine is turned on and the water flow can maintain a good flow state, and the flap door can be closed in time by gravity when the machine is turned off.

The invention discloses a positioning anti-retract regulation mechanism used for a sliding door. The positioning anti-retract regulation mechanism used for the sliding door comprises a stationary component, a movable component, a toggling device and a backstepping and / or damping device, wherein the toggling device and the backstepping and / or damping device mutually act; the movable component is at least the sliding door; the stationary component is at least a chute component or a cabinet body; the toggling device is arranged on the chute component or the cabinet body; the backstepping and / or damping device is arranged on the sliding door and is provided with idler wheels; the idler wheels carry out a rolling action on the chute component when the sliding door slides; the toggling device comprises a regulation assembly and a positioning seat, wherein the regulation assembly is arranged on the positioning seat and comprises a screw regulation component and a toggling component; the regulation acting part of the screw regulation component is acted by a tool, the screw regulation component carries out positioning rotation and drives the toggling component to carry out spacing sliding relative to the positioning seat. Through the above structure improvement, the positioning anti-retract regulation mechanism has the characteristics of simple and reasonable structure, reliable performance, quickness in regulation, convenience in operation, long service life, high connection compactness among construction members, stable and smooth opening and closing process, small acting force, high practicality and the like.

The invention discloses a rolling wheel integrated optimization adjustment structure of a furniture sliding door, which comprises a rolling wheel adjustment device, wherein the rolling wheel adjustment device comprises a fixed seat, rolling wheels and an adjustment rod, and the rolling wheels and the adjustment rod are positioned and rotationally arranged on the fixed seat. The structure is characterized in that at least two rolling wheels are positioned and rotationally arranged on the fixed seat; rotating axes of the rolling wheels are basically perpendicular to the transverse direction of the fixed seat; the rotating axis of the adjustment rod is basically parallel to the transverse direction of the fixed seat; the adjustment rod drives the at least two rolling wheels to linearly slide in different directions through driving of a tool; the sliding directions of the rolling wheels are basically parallel to the transverse direction of the fixed seat; and the rotating axis of the adjustment rod is basically perpendicular to the rotating axes of the rolling wheels. Through the structural improvement, the structure is high in practicability and has the characteristics that the structure is simple and reasonable, reliable in performance, large in adjustment quantity, quick to adjust, and convenient to operate; various members are connected with each other compactly; and opening and closing processes are stable and smooth and requires little force.

The invention relates to a built-in diaphragm type sleeve valve. The built-in diaphragm type sleeve valve comprises a valve body, a sleeve gate arranged in the valve body, and a valve base mounted on a flange in an outlet of the valve body. The sleeve valve further comprises a control component, a movement component and a diaphragm cavity component; the control component is arranged above the valve body; the movement component and the diaphragm cavity component are arranged in the valve body; the back end of the movement component is connected with the control component through a distribution pipe, and the front end is connected with the sleeve gate by penetrating through the diaphragm cavity component; and when the sleeve valve performs an opening / closing action, the control component detects and controls pressure in the diaphragm cavity component through the distribution pipe so as to control the movement component to drive the sleeve gate to move so as to realize the opening / closing action of the valve. Compared with the prior art, the built-in diaphragm type sleeve valve has such advantages as simple structure, low cost, good fluid state, excellent energy dissipation and cavitation resistance, multiple driving modes, powerful functions, low opening / closing force and reduction of extension connecting cost.