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415results about How to "Prevent accidental opening" patented technology

Middle-small unmanned aircraft parachute descent recovery control device and control method thereof

The invention discloses a middle and small unmanned aerial vehicle parachute landing device and a controlling method. The device comprises two discrete input 'choosing two out of three' circuits A and B, relay driving circuits A and B and relays A and B, all of which are connected by printed panel lines and respectively control the power supply of the engine and the explosive bolt; the method thereof determines three logic states of 'before open', safety 'pre-commanding' and 'open' and times 'effective time of safety pre-commanding' and 'parking time of engine'. The conversion of the logic states is determined by current test and control instructions, logic states and two timed values and thus controls the relays A and B. The unmanned aerial vehicle parachute landing device can prevent the parachute opening controlling signal from being disturbed so as to avoid accidental parachute opening; the method thereof carries out integrated control to the engine parking and the parachute opening, reduces the possibilities of the accidental parachute opening caused by the misoperation of an operator and the winding and cutting of a parachute rope by the propeller, thereby ensuring the safety and the reliability of the unmanned aerial vehicle parachute landing.
Owner:BEIHANG UNIV

Roller washing machine with long-acting ventilation and disinfection functions

Provided is a roller washing machine with long-acting ventilation and disinfection functions. A transparent window opposite to an accommodation space is formed in a washing machine door, an air inlet is formed in the outer side of the transparent window, an air outlet is formed in the side, close to the accommodation space, of the transparent window, the air outlet is controlled by a solenoid valve, and the solenoid valve is in a switch-on state only under the situation that an air pump is opened; the top of a washing machine body is provided with a circuit storing cavity, an air pump drive circuit, a solenoid valve drive circuit and a disinfection lamp control circuit are connected with a control center through wires and controlled by the control center, the solenoid valve drive circuit is connected with the solenoid valve to drive the solenoid valve, the air pump drive circuit is connected with the air pump to drive the air pump, and the disinfection lamp control circuit is connected with an ultraviolet disinfection lamp to control the ultraviolet disinfection lamp; a solar cell panel is arranged on the surface of the top of the washing machine body, a lithium battery is charged through a solar energy charging circuit, and under the situation that an external power source does not work, the lithium battery supplies electricity to circuit elements in the washing machine body.
Owner:嘉兴智慧园区营运管理有限公司

Electric children safety structure of automobile door lock

The invention discloses an electric children safety structure of an automobile door lock, comprising a motor; the motor drives a worm and is connected with the worm; the worm is meshed with a worm gear; a first shaft is sleeved by the worm gear; the worm gear is provided with a first bulge matched with the first end of a pushing swing rod; a second shaft is sleeved by the pushing swing rod; the second end of the pushing swing rod is matched with a transitional rod; the transitional rod and an inward opening rod can slide mutually; the inward opening rod drives a handle inside an automobile and is connected with the handle inside the automobile; a third shaft is sleeved by the inward opening rod capable of overcoming a torsion of a second torsion spring and rotating around the axis of the third shaft; the motor drives the worm to rotate; the worm drives the worm gear to rotate; the first bulge on the worm gear toggles the pushing swing rod to rotate; and when the pushing swing rod drives the lower end of the traditional rod to be close to a plane where an opening connecting rod is located, an inward opening handle is pulled to drive the inward opening rod to overcome the torsion of the second torsion spring, so that the lower end of the transitional rod toggles the opening connecting rod to overcome a torsion of a first torsion spring to drive a pawl to rotate, and furthermore, the door lock is unlocked.
Owner:DEERFU VEHICLE LOCK ANTI THEFT SYST SHANGHAI

Dishwasher, especially domestic dishwasher

Dishwasher, in particular domestic dishwasher, comprising a crockery basket which comprises a, in particular rotating, washing arm which is supplied with water by a water transferring pipe (1), wherein the water transferring pipe (1) is connected with the crockery basket and coupling means (2) are provided for hydraulic coupling of the water transferring pipe (1) to a water supply pipe (3) which is arranged in a wall or in a corner of the washing cavity, wherein the crockery basket is adjustable in its height relatively to the washing cavity of the dishwasher and the coupling means (2) allow hydraulic coupling of the water transferring pipe (1) to the water supply pipe (3) in at least two different height positions of the crockery basket, wherein the coupling means (2) comprise a bellow that is elastically deformable, wherein the bellow (4) is connected to the water supply pipe (3); and comprises an open axial end (5) that is adapted for releasable sealing contact with the water transferring pipe (1), wherein the bellow (4) has a sealing surface (6) at its open axial end (5) which cooperates with at least one sealing surface (7', 7'') of an adapter element (8) which is provided at the corresponding end of the water transferring pipe (1), and wherein the adapter element (8) has at least two sealing surfaces (7', 7'') for different height positions of the crockery basket.
Owner:ELECTROLUX HOME PROD CORP NV

Cabin door lock

The invention belongs to design technologies of door lock mechanisms of aircraft cabins and particularly relates to a novel cabin door lock. The current status of an existing cabin door lock mechanism is a combination of a planar four-bar linkage mechanism and a slider-crank mechanism, the structure of the cabin door lock mechanism is dispersed, and the occupied space is large; design is performed according to specific types as required so that the universality performance is poor; a lock handle protrudes from the surface of an aircraft body, and accordingly the attractiveness of the appearance is affected; other structures need to be designed for insurance and accordingly the reliability is affected. The novel cabin door lock is characterized by comprising a lock frame, an inner handle, an outer handle, a fastener, a sliding piece, a locking piece, a key lock, a gas spring and the like, an embedded handle is utilized in the novel cabin door lock, and the inner handle and the outer handle do not protrude from the surface of the cabinet door when the cabin door is locked; the structure is compact, the size is small, the weight is light, the structure is ingenious and reasonable, and the transmission efficiency is high; double insurance is utilized both in opening and locking, the operation is simple and labor-saving, and accidental opening of the cabin door can be prevented, and accordingly the reliability and the safety of the opening and the closing of the cabin door can be guaranteed; the novel cabin door lock is applicable to various small-sized aircrafts and high in universality and can greatly reduce the costs of the products through mass production.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Power distribution box suitable for intelligent power grid

The invention relates to the field of power distribution boxes and more specifically relates to a power distribution box suitable for an intelligent power grid. Two supporting leg assemblies and two rainproof plates are arranged, the two supporting leg assemblies are symmetrically and fixedly connected to the front end and the rear end of the bottom surface of the power distribution box, the two rainproof plates are symmetrically and fixedly connected to the left end and the right end of the upper end of the power distribution box, a door frame assembly is fixedly connected to the front end ofthe power distribution box, a box door is in clearance fit in the door frame assembly, the upper end of the door frame assembly is clamped to the upper end of the box door, and a box door control assembly is in rotary connection to the middle end of the box door. The power distribution box disclosed by the invention is prevented from being damaged by ground pollutants and water, a power distribution cabinet body has a heat radiating function, the box door can be locked in the door frame assembly by a lower locking assembly, the box door is prevented from being pried by illegal staff, components and parts are prevented from being stolen, and loss is avoided; meanwhile, the box door can slide to the upper end of the power distribution box when in an open state, so that the box door is prevented from being opened or closed by mistake in a work process of workers, the box door is also prevented from being bumped by the workers by accident in the work process, and safety is improved.
Owner:湖南恒力通电气设备科技有限公司

Magnetic lock control ball valve

The invention relates to the technical field of valves, in particular to a magnetic lock control ball valve. The magnetic lock control ball valve comprises a valve body. A ball is disposed in the valve body. A valve rod is connected to the upper end of the ball. A handle is connected to the upper end of the valve rod. A first blind hole is formed in the upper portion of the valve body. A first spring is disposed in the first blind hole. A second blind hole is formed in the lower end of the handle. A first strong magnet is disposed between the second blind hole and the first spring. A third blind hole is formed in the upper portion of the handle. A lock cap is sleeved outside the handle. A second strong magnet is disposed in the lock cap. When the valve needs to be opened, the lock cap is covered at the upper end of the handle, the second strong magnet pushes the first strong magnet downwardly under the action of the spring to relieve the first strong magnet's blocking to the handle, a positioning pin moves upwardly to relieve the positioning pin's blocking to the handle, and the handle can be pulled. When the valve needs to be locked, the lock cap is taken off when the handle is pulled to an appropriate position, the first strong magnet and the positioning pin reset through the spring to limit and lock the handle, and theft and accidental opening can be prevented.
Owner:宁波世亚燃气仪表管件有限公司

Pinch-grip hanger

A pinch-grip hanger includes an elongated body with first and second pinch-grips positioned along the body. Each pinch-grip has a stationary back leg and a front leg movable about a pivot axis, with single gripping portions at the lower ends thereof. An inverted U-shaped spring applies a force near the lower ends of the legs to bias the gripping portions thereof toward each other. Moving the upper ends of the front leg rearwardly separates the gripping portions, thereby opening the pinch-grip. Spacers at opposite sides of the legs extend in the front-to-back direction a sufficient distance so that contact with another hanger on a rack will not move the upper ends of the legs toward each other a sufficient distance to release an item being held by the gripping portions. Opposed overlapping barriers extend from the front and back legs just below the pivot axis. These shield an item held by the hanger from the area near the pivot axis. The gripping portions each have a single gripping tooth, the tips of which are substantially in contact when the pinch grip is closed and an item is not being held by the hanger. The teeth have substantially planar parallel upper surfaces that together define the lower end of the gripping area between the gripping portions. The gripping portions also have outwardly tapering end portion with substantially smooth surfaces extending downward below the teeth.
Owner:VISCONTI POLYOAK
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