11results about How to "Keep closed" patented technology

The utility model relates to the technical field of fireproof windows, and discloses a fireproof window capable of being automatically closed, which comprises a window frame, the window frame is a rectangular frame, a smoke sensor is fixedly arranged on the side surface of the window frame, a first mounting cavity is formed in one side, far away from the smoke sensor, of the window frame, and the first mounting cavity is a rectangular cavity. According to the utility model, when the window plate begins to swing, the side surface of the window plate impacts the positions of the buffer rod and the buffer rubber block, the buffer rod swings through the rotating column after being impacted, and the swing of the rotating column is influenced by the torsion of the torsion spring, so that the impact force of the window plate is buffered; and the side face of the window plate makes contact with the side face of a buffering rubber block, the side face of the buffering rubber block makes contact with the side face of a third mounting cavity, the buffering rubber block is extruded, and therefore vibration generated during collision is reduced, and the situation that glass is shattered due to falling of the movable sash is avoided.

The utility model relates to the technical field of toilet deodorization, in particular to a hydraulically-driven water separation device which comprises a mounting seat and a valve, and the mounting seat is provided with a deodorization air channel and a water outlet channel which are communicated through an air inlet; the valve is rotationally arranged in the water outlet channel and comprises a control part and an opening and closing part, and the control part is used for controlling the valve to rotate under hydraulic drive of water flow in the water outlet channel, so that the opening and closing part closes the air inlet; and when the water flow in the water outlet channel stops, the opening and closing part is used for driving the valve to rotate under the action of gravity, so that the opening and closing part leaves the air inlet. The valve is arranged in the water outlet channel, the valve is driven by water flow in the water outlet channel to close the air inlet, and the valve is reversely driven under the gravity action of the body to enable the opening and closing part to leave the air inlet; therefore, when water flow exists in the water outlet channel, the air inlet can be closed to prevent the water flow from entering or partially entering the deodorization air channel to cause water inlet damage of the deodorization fan, and the hydraulic driving structure is sensitive in response, accurate in control and more reliable in work.

This invention discloses an automatic switching system, method, and drive circuit for an uninterruptible power supply (UPS) in the field of power electronics. It includes a power module for providing electrical energy to the system; a relay switch unit for controlling the switching of mains power input; an accelerated turn-off unit for accelerating the turn-off of the relay switch unit; a circuit switching unit for switching a high-current drive circuit to a low-current drive circuit after a predetermined delay; and a control module for outputting a high-level signal to control the circuit switching unit to switch the high-current drive circuit to accelerate the closing of the relay switch unit, and outputting a low-level signal to control the accelerated turn-off unit to accelerate the turn-off of the relay switch unit. This invention employs a delayed switching drive design and an accelerated turn-off unit, which significantly simplifies the power supply hardware design, reduces the power requirements of the auxiliary power module, and significantly shortens the relay turn-off time, ensuring the stability and reliability of the UPS during the switching process.

The invention provides an automobile anti-collision beam fixing and welding device, and relates to the technical field of welding devices.The automobile anti-collision beam fixing and welding device comprises a bottom plate, an adjusting assembly used for adjusting the welding position is arranged on the upper surface of the bottom plate, an extending plate is arranged on one side of the bottom plate, and a fixing assembly used for fixing the position of an anti-collision beam body is arranged above the extending plate; a finger air cylinder used for fixing a connecting piece is fixedly installed on one side of the adjusting assembly, and a welding assembly used for automatic welding is fixedly installed on the upper side of the adjusting assembly. A driving motor located in the middle is started, a driving wheel rotates, a transmission belt obtains power, then driven wheels on the two sides are driven, the driven wheels on the two sides drive a rotating wheel to rotate on a rod body of a connecting rod, a welding gun rotates along with the rotating wheel, and therefore the welding gun can surround the welding position of the connecting piece by a circle; and it is ensured that full-automatic welding can be achieved without overturning when the connecting piece is fixed, and the welding efficiency is greatly improved.

The utility model relates to the technical field of safety door lock relates to a new formula U type glass door latch, including the handheld part of U type structure, lock bar, fixed lock, locking sleeve, lock sleeve and locking mechanism. A new formula U type glass door latch handheld part of the application is used for user manual operation, lock bar is used as the main component of inserting glass door lock handle, fixed lock is used for closing after lock bar inserts to ensure the safe locking of glass door, locking sleeve is connected with handheld part and is set up in lock bar outer periphery and provides the protection to the outside world corrosion, lock sleeve is connected with locking sleeve and is connected with the locking sleeve and is jointly used to provide protection and prevent lock bar from being damaged. The function of locking mechanism is to fix lock sleeve and lock bar to keep lock sleeve close to lock bar surface, and enhance the protection effect.

The utility model discloses a special protective device for a roof bolter, which comprises a pneumatic component, a rotary drilling component is arranged at the top of the pneumatic component, and the special protective device is characterized in that a protective plate is sleeved on the outer side of the rotary drilling component, a discharge baffle is arranged on the protective plate, and the bottom of the discharge baffle is rotatably connected with the bottom of the protective plate; a pushing positioning assembly is arranged on the lower side of the protection plate and slidably connected with the pneumatic assembly, and the top end of the pushing positioning assembly abuts against the outer side of the discharging baffle. The upper portion of the pneumatic assembly is provided with a hand grabbing wheel, and a connecting rod is arranged between the hand grabbing wheel and the pneumatic assembly. By means of the device, operators are effectively protected, broken stones and sandy soil generated during top drilling operation are prevented from directly falling onto the operators, the bodies of the operators are prevented from being stained, the operators are further prevented from being injured, and the safety of mine operation is improved; and meanwhile, convenience of gravel dumping can be achieved, and the working efficiency is improved.

The invention relates to the technical field of medical instruments, in particular to a hydrops drainage device based on head and neck surgery, which comprises a drainage tube connected with a surgical wound, and one end, far away from the surgical wound, of the drainage tube is communicated with a negative pressure generation mechanism for forming negative pressure suction force; one end, far away from the drainage tube, of each flushing tube is communicated with a cleaning tank for storing normal saline; the drainage tube is further sleeved with an opening and closing mechanism used for controlling the flushing tube to be communicated with the drainage tube, the opening and closing mechanism comprises a closed tank and a blocking plate, the blocking plate is located between the closed tank and the flushing tube, a sealing cavity is formed in the closed tank, air pressure in the sealing cavity is consistent with negative pressure suction in the drainage tube, and an elastic film is arranged between the sealing cavity and the drainage tube in a dividing mode. One end of the blocking plate is located in the sealing cavity, and the other end communicates with the flushing pipe; the drainage tube is used for achieving automatic dredging treatment of blockage of the drainage tube, it is guaranteed that effusion drainage is continuously conducted, and the infection risk and complications are reduced.

The application discloses a novel intelligent lung rehabilitation dynamic monitor, which comprises a monitoring seat, a control panel, a myoelectricity electrode, an arc-shaped gasket and a dynamic adjusting mechanism, wherein the dynamic adjusting mechanism comprises a displacement mechanism, a hollow tube, a spring, a moving rod, a flexible balloon, a magneto-rheological fluid, an electromagnet and a current adjusting mechanism; the arc-shaped gasket can be attached to the chest cavity of a user through the displacement mechanism, so that the myoelectricity electrode can collect lung myoelectricity signals; the expansion and contraction of the chest cavity during the breathing process of the user can drive the moving rod to move, and the current adjusting mechanism is used for adjusting the current size delivered to the electromagnet; the viscosity of the magneto-rheological fluid is adjusted through the change of the magnetic field intensity, and then the rigidity of the flexible balloon is changed; during inhalation, the flexible balloon with larger rigidity can keep the movement of the moving rod stable; the rigidity of the flexible balloon decreases during breathing, and the spring can pull the moving rod to reset, so that the myoelectricity electrode can stably collect myoelectricity signals, thereby being used for evaluating the rehabilitation effect of the lung of the user.

The utility model relates to the technical field of circular knitting machines, and discloses an online detection device for cloth of a circular knitting machine. The on-line detection device comprises a fixing support, a plastic baffle, a first metal detector, an electromagnetic coil and a controller, the circular knitting machine is provided with a cloth expanding frame, the fixing support comprises a center stand column and a supporting cross rod, the center stand column is arranged on a fixing base, the supporting cross rod is arranged on the center stand column, the plastic baffle is provided with a coil stand column, and the coil stand column is provided with a first metal detector. The coil stand column is connected with the supporting cross rod, the electromagnetic coil is wound on the coil stand column, and the first metal detector is arranged on the plastic baffle. The on-line detection device is arranged in the needle cylinder of the circular knitting machine, the first metal detector scans and detects cloth and sends a signal to the controller when sensing a metal foreign matter, and the controller controls the electromagnetic coil to be powered on to suck out the metal foreign matter on the cloth when the metal foreign matter passes through the electromagnetic coil, so that non-stop operation is realized, and the work efficiency is improved. And the cloth cannot be damaged.

The utility model discloses a raw material screening device for ceramic membrane production, and relates to the technical field of ceramic membrane filtration, the raw material screening device comprises an upper cover, a tank body and a material screening pocket, the upper end of the material screening pocket is provided with an opening, the side wall and the bottom of the material screening pocket are provided with arrayed meshes, the upper cover is installed above the tank body through threads, and a truss is fixedly arranged below the tank body. A lower connecting seat is fixedly arranged at the bottom of the rotating shaft; a connecting groove is formed in the bottom of the lower connecting seat; a connecting column is fixedly arranged at the position, corresponding to the connecting groove, of the truss; the position, surrounding the connecting groove, of the bottom of the lower connecting seat is a diagonal plane; a sealing ring is fixedly arranged at an opening in the upper end of the screening bag in a surrounding mode, and an upper ring groove is fixedly formed in the position, corresponding to the sealing ring, of the upper cover. The material screening device is simple in structure, high in working efficiency, high in practicability and suitable for popularization, and the material screening speed is increased by driving the material screening structure to rotate and vibrate up and down.

The utility model relates to the technical field of valve welding, and discloses a valve connecting pipe welding clamp which comprises an upper plate and a lower plate, side edge fixing plates are arranged on the two sides of the upper plate and the two sides of the lower plate to form a closed area, and connecting hole positions are arranged behind the upper plate and the lower plate and used for installing the clamp on the fixing plates. The clamp is used for arranging the outlet end of a valve between the upper plate and the lower plate and welding a connecting pipe connected to the upper portion of the outlet end, a round hole is formed in the lower plate and used for allowing the outlet end of the valve to enter, and a hexagonal hole is formed in the upper plate and used for allowing a hexagonal connecting pipe to enter. The height of the clamp is increased, so that enough space is provided during argon arc welding operation, and the welding quality and efficiency are improved.