32results about How to "Stay closed" patented technology

The invention provides an electric control lock and a method for closing window-shades of a ventilation pavilion remotely. The window-shades can be opened and closed manually from the outer side of awindow. When the window-shades are in an opened state, the window-shades can be electrically controlled remotely to be closed in case of an alarming condition. After the alarming condition is relieved, the window-shades are opened by manually unlocking the electric control lock with a key on site, so that the ventilating function of the window-shades is achieved. The ventilation pavilion is closedautomatically according to the alarm condition on site, so that self protection of the ventilation pavilion is finally achieved. The two locking modes: remote closing and manual opening and closing do not interfere with each other.

The invention relates to a bearing for an electric fan, in particular to a high-rotating-speed detachable bearing for an electric fan. The high-rotating-speed detachable bearing for the electric fan can reduce bearing abrasion and prolong the service life of the fan bearing. A high-rotating-speed detachable bearing for an electric fan comprises a rolling shaft, balls, a limiting ring, a closing plate and the like. A circle of detachable balls are symmetrically arranged on the left side and the right side of the rolling shaft respectively, a limiting ring is rotationally arranged on the rolling shaft and composed of three limiting blocks capable of being separated, and a detachable closing plate is arranged on the limiting block on the foremost side. The rolling shaft extrudes the limiting ring to expand outwards through the balls while rotating at a high speed, under the action of the sliding blocks and the reset springs, impact force borne by the limiting ring can be buffered, abrasion of the limiting ring and the balls is reduced, meanwhile, the limiting ring can be kept in the state of being in contact with the balls, and therefore the pre-tightening force of the bearing is adjusted.

The present invention provides an automotive storage apparatus which can store various types of articles so as to improve the convenience for use. An automotive storage apparatus has a storage apparatus main body in which an opening which opens upward can be covered and uncovered by a slidable lid unit and a box unit which can detachably be installed in the storage apparatus main body and which covers part of the opening when installed, and in such a state that the box unit is installed in the storage apparatus main body, the lid unit is in abutment with the box unit at an end portion thereof, so as to cover the remaining portion of the opening.

The invention discloses an automatic inflatable boat. It includes: a tubular hull part with a plurality of air chambers inside; a velocity tube or an air delivery pipe installed on the tubular hull part; a compressed air supply source is fixed behind the tubular hull part, thereby The compressed air supply part that generates compressed air and provides compressed air to the velocity tube; the air distribution part that supplies compressed air to each air chamber of the hull part at the design pressure through the above velocity tube; the above hull part supplies the keel with the design pressure Air connection section for air. In the present invention, through the high-pressure intake valves at 1-2 places, the air of the required pressure is quickly input to each air chamber at the same time, so it can be quickly put into use in an emergency. It is especially suitable for the evacuation and transfer of rescue ships or military ships with emergency needs, ensuring that any air chamber in the hull part is damaged without affecting the remaining air chambers, ensuring safety.

The interlocking device of microwave oven is formed from first door lock, second door lock and first door lock board component and second door lock board component. First door lock and second door leak are respectively elastic door lock and fixed door lock, mounted on the back surface of down-pulling oven door, and respectively coupled with first door lock board component and second door lock board component, the first door lock board component and second door lock board component are placed at one side of microwave oven main body cooking chamber, and are equipped with microswitch. The operation of microswitch of elastic door lock is accurate, it can accurately detect opening or closing state of oven door, and can reliably retain the closed state of oven door, and the fixed door lock can more reliably retain closed state of oven door, and can detect the opening and closing state of oven door.

The invention relates to the technical field of fire rescue, and discloses an anti-collision fire hydrant which comprises an overground pipe, a standard water outlet in the top of the overground pipe and a hydrant cap at the top end of the overground pipe, the center of the top end of the overground pipe is movably sleeved with a hydrant cover, and the outer side of the bottom end of the hydrant cover is fixedly connected with a limiting protrusion. The center of the top end of the hydrant cover is fixedly connected with a rotating head, the bottom end of the hydrant cover is fixedly connected with an inclined ring, and a sliding groove is formed in the inclined ring. By designing the rotating head, the inclined ring, the movable rod, the extrusion seat, the pressed rod and the valve plate, the movable rod can be extruded and loosened in the whole process through the inclined ring when the rotating head rotates by a circle, so that the extrusion seat can extrude and loosen the pressed rod in a short time; and the valve plate can complete opening and closing of the valve hole and different opening and closing degrees in a short time, so that the fire hydrant is prevented from needing to rotate the screw rod for a long time to complete opening and closing of the valve in an emergency.

The invention belongs to the technical field of electric control locks, and provides a ventilation pavilion shutter electric control lock capable of preventing misoperation and a working method thereof.The ventilation pavilion shutter electric control lock comprises a lock sleeve, a lock shell, a lock cylinder, a moving disc, an upper cover and a lower cover, and is characterized in that the lock sleeve is fixed to the lock shell, and the lock cylinder capable of freely rotating is arranged in the lock sleeve; the lower cover is matched with the lock sleeve through a hole, and a manual shifting rod is arranged on the lock cylinder. By means of ingenious cooperation of the electromagnet shifting fork, the manual shifting rod, the moving disc, the lock cylinder, the rotating hook, the pin shaft, the compression spring and the tension spring, the blind window can be smoothly closed, the closed state can be kept, and terrorist damage can be prevented; and after the alarm condition is relieved, the worker can conveniently open the blind window again by using a key on site, so that ventilation in the tunnel is ensured. When the blind window is opened, the blind window is kept in an open state under the action of the moving disc, the rotating hook, the pin shaft and the pressure spring, and the open state can be kept.

A pneumatic actuator with an automatic locking function, comprising: a cylinder main casing, with a gas push block accommodation chamber; a cylinder front cover, installed and sealed at one end of the cylinder main casing ; Wherein, the front cover of the cylinder also includes a first lock assembly; a gas push block, which is arranged in the chamber of the gas push block; and a cylinder movable rod, one end of which is connected to the gas push block, It is provided on the front cover of the cylinder; wherein, when the gas pushing block is pushed, the moving rod of the cylinder moves and is locked together with the first locking component, and the moving rod of the cylinder is locked Unable to move.

A binding device for files and binders is provided in which rings to be inserted into binding holes of objects to be bound can be opened sufficiently, in which a lever of an opening-closing mechanism for the rings can be operated sufficiently, and which can be attached to the cover of files and binders. This binding device for files and binders is a binding device in which rings (612) to be inserted into binding holes of an object to be bound are openably and closeably secured to a base plate (618) so as to be opened and closed by an opening-closing mechanism (616) including a rotationally movable lever (614). In the binding device, a first ring member (620) and a second ring member (640) are configured such that they are interlocked with the opening-closing mechanism (616) including the lever (614) so as to be opened and closed about respective pivot portions 646 and (650) provided in the lower end thereof by rotationally moving the lever (614). In addition to this, the first ring member (620) and the second ring member (640) are secured in an opened state when opened, and the lever (614) is secured such that the first ring member (620) and the second ring member (640) are maintained in the opened state.

The invention relates to a cleaning type ventilation protection air-tight door. The cleaning type ventilation protection air-tight door comprises a door leaf. Inner air-tight doors are arranged on theinner side of the door leaf and vertically hinged to the door leaf, and each hinge point is located on one side of the corresponding inner air-tight door. Opening and closing devices which are used for driving the inner air-tight doors to rotate are connected to the inner air-tight doors and connected with a transmission device. The input end of the transmission device is connected with a hand wheel, a weight is detachably connected to the hand wheel, the force, applied to the hand wheel, of the weight generates the torque to the hand wheel, and the direction of the torque is the direction ofthe process that the inner air-tight doors are closed by the hand wheel. The cleaning type ventilation protection air-tight door has the effect that after the inner air-tight doors are locked and closed, the airtightness is good.

The present invention provides an automobile door lock device capable of reliably maintaining a closed state of a door even when the direction of inertia acting on an inertial lever is reversed upon receiving an impact. When the opening link (17) is in the unlocked position, and the inertial operating lever (15) overcomes the force of the spring (26) to move from the standby position to the blocking position due to the inertial force exceeding the set value, the inertial operating lever ( 15) Abut against the opening link (17), so that the opening link (17) moves from the unlocked position to the locked position, and prevent the opening link (17) from moving from the locked position to the unlocked position, and the inertial operating lever (15 ) is prevented from moving from the blocking position to the standby position by engaging with the opening link (17).

The invention discloses a heating / natural gas intelligent leakage-proof device, system and method. The heating / natural gas intelligent leakage-proof device is characterized in that a pipeline in a device body is provided with a three-wire two-control electric valve and photoelectricity, the photoelectricity is internally provided with a photoelectric pressure switch, and the pipeline is also provided with an electricity distribution box which carries out the WIFI communication control based on a WIFI IOT circuit breaker and is provided with self-locking control and timing control; and the electricity distribution box is connected between the three-wire two-control electric valve and the photoelectric pressure switch. The heating / natural gas intelligent leakage-proof device is based on Internet of Things control and comprises an execution module, an Internet of Things control terminal module, a mobile terminal Internet of Things APP server and a PC terminal APP server, the execution module is connected into a heating pipeline system or a natural gas pipeline system, the execution module is connected with the Internet of Things control terminal module, and the Internet of Things control terminal module is connected into a user power supply system. The invention provides the intelligent leakage-proof, explosion-proof and electric shock-proof multidirectional automatic wireless Internet of Things safety device and system which are accurate in detection, automatically lock the valve and always keep a locked state, and meanwhile, can realize remote control of a client.

The invention relates to a clean ventilation protection airtight door, which comprises a door leaf. An inner airtight door is arranged on the inner side of the door leaf. The inner airtight door is vertically hinged on the door leaf and the hinge point is located on one side of the inner airtight door. The inner airtight door The top is connected with an opening and closing device for driving the inner airtight door to rotate. The opening and closing device is connected with a transmission device. The input end of the transmission device is connected with a hand wheel. The hand wheel is detachably connected with a heavy object. The force generates torque on the hand wheel and the direction of the torque is the direction in which the hand wheel closes the inner airtight door. The invention has the effect of good sealing performance after the inner airtight door is locked.