12results about How to "Close fast" patented technology

The invention discloses a charge pump booster circuit, relates to the technical field of brush motors, and aims to solve the problem of low boosting efficiency of a built-in charge pump booster circuit in a brush motor in the prior art. The charge pump boost circuit comprises a logic control module, a current source module, a driving module and a boost module. The current source module is used for providing stable voltage for the driving module; the driving module at least comprises a pull-up PMOS tube; the logic control module is used for generating two non-overlapped clock signals based on an input clock source, and generating a first switching signal and a second switching signal based on the two non-overlapped clock signals; the two non-overlapped clock signals comprise a first clock signal and a second clock signal; and the logic control module is used for jointly controlling the switch of the driving module based on the two non-overlapped clock signals, the first switch signal and the second switch signal, so that the driving module drives the boosting module to output a target voltage by utilizing the pull-up PMOS tube. Therefore, the boosting efficiency can be improved.

Provided is a flow path control device which includes a fourth on-off valve 304 for opening or closing a fourth communication path through which oil flows from a jack chamber to a reservoir chamber, a third on-off valve 303 which controls the opening and closing of the fourth on-off valve 304 by transiting between a first state in which the fourth on-off valve 304 is moved to a position where the fourth communication path is closed and a second state in which the fourth on-off valve 304 is moved to a position where the fourth communication path is opened, and a push rod 316 which includes a push rod main body 316a of which one end is pressed and moved to the other side and the other end causes the third on-off valve 303 to transition from the first state to the second state and a washer 700 which protrudes radially outward of the push rod main body 316a from an outer peripheral surface of the push rod main body 316a so as to receive pressure of oil flowing from the jack chamber to the reservoir chamber.

The present invention relates to a side delivery and pickup structure of an automatic vending machine, wherein multiple layers of cargo bins are arranged vertically from top to bottom in a cargo bin chamber, and a swing mechanism is arranged on the inner wall surface of any side of the cargo bin chamber, and when the swing mechanism swings, the pickup bin arranged at the end thereof can be moved to the delivery position at the front end of any cargo bin. In the present invention, the pickup method and the pickup door structure are improved, wherein the improvement of the pickup method can improve production efficiency, and the longitudinal length of the cargo bin and the box body can be flexibly set; the improvement of the pickup door structure can facilitate the removal of goods, increase the number of layers of the cargo bin, and save electric energy.

The present invention provides a construction method for a locally deepened open-cut shaft, which relates to the technical field of tunnel construction and includes: first constructing a diaphragm wall, excavating to a first preset elevation to construct the first ring beam, then excavating down to a second preset elevation, and constructing the second ring beam and the first side wall between the first ring beam and the second ring beam; taking the bottom of the second ring beam as the excavation surface, constructing the shaft foundation and the locally deepened foundation, arranging a vertical support member between the top surface of the locally deepened foundation and the bottom surface of the second ring beam, and constructing the remaining side walls and ring beams from bottom to top relying on the vertical support member and the first side wall until the top of the shaft is closed, and finally constructing the second side wall between the top surface of the locally deepened foundation and the bottom surface of the second ring beam. This method improves the closing speed and construction safety of the main structure of the locally deepened open-cut shaft. By constructing the ring beam as a permanent support structure, the demolition process of the temporary waist beam is eliminated, and the problem of asynchronous construction of the left and right side walls in the traditional top-down method is solved.

The utility model belongs to the technical field of fireproof doors, and particularly discloses a cruise ship cabin fireproof door which comprises a cabin body, the inner side of the cabin body is fixedly connected with a first nesting frame and a second nesting frame, the inner surface of the first nesting frame is connected with a first door leaf in a sliding mode, and the inner surface of the second nesting frame is connected with a second door leaf in a sliding mode. Door handles are arranged on the outer surface of the first door and the outer surface of the second door, and a driving mechanism for closing the first door and the second door at the same time is arranged in the cabin body. According to the fireproof door of the cruise ship cabin, in the closing process of the fireproof door, compared with inclined push-pull closing of a single side, the fireproof door is closed through mutual approaching and contact of the two door bodies, the closing speed is higher, the influence of the fire behavior and the wind direction in smoke on the fireproof door is smaller, and the situation that the fireproof door is closed reversely is basically avoided; and the closing effectiveness of the fireproof door is greatly improved.

The present invention relates to the field of valve technology, and discloses an electromagnetic emergency shut-off valve for mechanical shut-off with pneumatic power failure, comprising a valve body and an external shell, the external shell being plugged into the surface of the valve body, an electromagnet being fixedly connected inside the external shell, a tension spring being fixedly connected to the side of the external shell away from the electromagnet, a strong magnetic round valve core being fixedly connected to the end of the tension spring close to the electromagnet, the valve being cut off by driving the round connecting rod valve core to rotate by cooperating with a half gear, the round connecting rod valve core being able to quickly cut off the flow of fluid to ensure the safety of operators, and at the same time, because the round connecting rod valve core quickly cuts off the flow of fluid when the valve or pipeline leaks, the production interruption and equipment maintenance time caused by the leakage can be reduced, thereby improving the production efficiency, which is very important for industrial production requiring continuous production, and can avoid the production interruption and equipment maintenance time caused by leakage accidents, thereby improving the production efficiency and economic benefits.

The utility model provides a centrifugal hatch cover capable of being closed safely, which relates to the technical field of medical instruments and comprises a fixing part, a cover body and a cover body. The damping piece is U-shaped on the whole and is provided with a rotating cavity; the damping piece is fixedly connected to the upper end of the fixing piece; the damping piece is provided with a mounting hole, and the mounting hole is aligned with the mounting screw hole of the fixing piece; the damping piece has elasticity; the adjusting screw penetrates through the mounting hole of the damping piece and is connected with the mounting screw hole of the fixing piece through a thread; the connecting shaft is inserted into the rotating cavity of the damping part, and when the adjusting screw rotates in the mounting screw hole, the adjusting screw is screwed in / out along the central axis of the mounting screw hole; and when the adjusting screw is screwed in / out, the damping piece is compressed / released, and the friction force between the damping piece and the connecting shaft is increased / reduced, so that the problems that the whole centrifugal hatch cover has relatively large weight, the hatch cover needs to be controlled by relatively large force when the centrifugal hatch cover is opened and closed, and a user is easily injured by pressing or squeezing due to unstable control are solved.

The utility model relates to the technical field of civil air defense engineering, and disclose a detachable installation's civil air defense protection partition, including wall, the inner chamber of wall installs door frame, and the other side of wall is provided with the protective door main part, the front side of protective door main part is fixedly installed with fixed slot in the top department, and the inner chamber of fixed slot is provided with adjusting assembly, and the front side of wall is close to the recess that sets up in the other side department, when locking protective door main part, under the cooperation use of adjusting assembly, can be in the user foot presses down movable plate, through the drive rod of fixed in movable plate can make drive pipe rotate, and then can make two T shape sliding insert block move to opposite side, make the end of T shape sliding insert block move to opposite side, when closing protective door main part, under the reset telescopic link and reset spring elasticity effect, can make T shape sliding insert block insert in the inner chamber of adjacent locking mouth quickly, can close and lock protective door main part quickly, improve the efficiency of closing.

The utility model provides an automatic door opening mechanism of a dispenser, which relates to the technical field of door opening mechanisms and comprises a main box body, a propelling lug plate and a driving motor, the propelling lug plate is arranged on the upper portion of the main box body, the driving motor is arranged on the upper portion of the main box body, a tail nut is fixed at the tail end of the propelling lug plate, and the center of the tail nut is in threaded connection with a screw rod in a penetrating mode. A limiting plate is fixed to the head end of the screw, the tail end of the screw is fixedly connected with the polished rod, the limiting plate is fixedly connected with the head end of the outer corrugated protective sleeve, the head end of the pushing lug plate is rotationally connected with the door opening lug plate, and the polished rod and the tail nut slide in a penetrating mode. The tail nut is separated from the screw rod and moves to the polish rod, under the thrust of the gas spring telescopic cylinder, the tail nut rapidly moves along the polish rod, instant opening of the box door is achieved, and the problems that the screw rod or an electric telescopic rod or the like drives the box door to be opened at a constant speed, and the box door is slowly opened in the emergency rescue situation are solved.

The utility model relates to the technical field of automobile warm water valves, in particular to an automobile electromagnetic warm water valve. The electromagnetic valve comprises a valve body, a first water outlet channel, a second water outlet channel, a water inlet channel, a first electromagnetic valve body and a second electromagnetic valve body are arranged on the valve body, the first electromagnetic valve body and the second electromagnetic valve body each comprise a shell, a valve rod, a coil assembly, a movable magnetic core and a fixed magnetic core, and the valve rod is installed in the center of the coil assembly in an axial moving mode; a sealing mechanism is arranged between the valve rod and the water inlet channel, a movable magnetic core and a fixed magnetic core are fixedly arranged on the valve rod, the movable magnetic core is arranged at the end, away from the water inlet channel, of the valve rod, a reset spring is arranged between the movable magnetic core and the fixed magnetic core, and a magnetic sleeve is arranged between the movable magnetic core and the coil assembly. The end, away from the fixed magnetic core, of the movable magnetic core is located in the middle of the magnetic sleeve, and the other end of the movable magnetic core extends out of the magnetic sleeve. After the prior art is improved, the electromagnetic warm water valve is high in closing speed and high in sensitivity.

This utility model discloses a novel in-lens shutter structure, comprising a lower fixed base and an upper cover plate. A middle partition plate, a first upper blade located on the upper side of the middle partition plate, and a first lower blade located on the lower side of the middle partition plate are installed within the blade receiving cavity. A blade driving assembly is installed on the lower fixed base, including a crank. The first upper blade and the first lower blade rotate synchronously in opposite directions under the drive of the crank. A second upper blade, stacked with the first upper blade, is installed on the upper side of the middle partition plate, and a second lower blade, stacked with the first lower blade, is installed on the lower side of the middle partition plate. The first upper blade and the second upper blade are staggered, and the first lower blade and the second lower blade are also staggered. The second upper blade and the second lower blade rotate synchronously in opposite directions under the drive of the crank. This utility model has the advantages of novel structural design and fast closing speed, and can effectively reduce the distortion of object shape when shooting high-speed moving objects or rapid panning.