38results about How to "Automatic opening and closing" patented technology

The invention belongs to the field of food packaging equipment, especially a packaging device for food production, which includes a bottom plate and a support box installed directly above the bottom plate, vertical fixing columns are fixed at the four corners of the top wall of the bottom plate, and the The bottom wall gap fits on the outer ring of the four fixed columns, the four corners of the top wall of the bottom plate are respectively connected with the four corners of the outer bottom wall of the support box with first springs, and the top ends of the four fixed columns extend to the inside of the support box and are fixedly connected There is a horizontal shock-absorbing plate, the middle section of the shock-absorbing plate is provided with a rectangular movable hole, both sides of the movable hole are movably socketed with rectangular shock-absorbing blocks, and the inner walls of both sides of the movable hole are fixedly connected with a fixed rod , the invention is novel in design, high in automation, can automatically realize the opening and closing of the vacuum cover, has less manual labor, less vibration during work, and less working noise, which can protect the hearing health of food packaging operators and is practical. Sex is higher.

The invention relates to a fireproof curtain plate door structure. The door structure comprises a fireproof curtain plate door main body formed by at least two curtain plates, a slide limiting part for preventing the curtain plates from sliding, and a driving part for driving the curtain plates to slide. A telescoping cooperation structure which is capable of sliding in a reciprocating manner is formed between adjacent curtain plates. According to the invention, problems of inconvenient opening and closing, proneness to break down and poor working reliability of a fireproof door caused by big thickness and weight of a current curtain plate are solved; the door structure is advantaged by simple structure, easy manufacturing, wide application, easy opening and closing and high working reliability; and the door structure is mainly used for manufacturing a fireproof curtain plate door of a building.

The invention relates to a high-temperature microwave reactor combined device and a reaction method, and is a research in the field of hydrogenation optimization of biomass heat conversion products. The cooling water device of the combined device is connected with the high-pressure reactor device through pipelines and forms a fluid circuit; the high-pressure reactor device and the high-temperature microwave reaction device are controlled through the control panel respectively; The connection between the reactor devices is equipped with an automatic control valve; the automatic control valve is opened and closed by the control panel to realize the optimal reaction of hydrogenation. The invention automatically realizes the continuous secondary reaction of hydrogenation optimization by automatically controlling the opening and closing of the valve, which saves time and is easy to operate; through the different tees on the cooling water pipe, the opening and closing of different tees can be adjusted according to the experimental needs , to achieve cooling in different positions, flexible operation and strong adaptability.

The invention discloses a high-pressure oblique stop valve. The valve structurally comprises a valve body, a connecting flange, a controller, buttons, a display screen, a power lead, a fixing frame, ascrew, a hand wheel, a valve element, a driving device and a water flow sensor. The high-pressure oblique stop valve provided by the invention has the beneficial effects that in order to solve the problems that a valve fails to be automatically opened and closed and consequentially is difficult to open and close, the driving device is arranged, a motor is energized to make mechanical movement, adriving shaft is driven to rotate, after the speed is reduced through a gear reducer, a connecting rod is driven to rotate on the inner sides of a first bearing and a second bearing through a coupler,accordingly, the connecting rod drives a gear to rotate, the gear drives the screw to move towards the upper end of the fixing frame, and the valve can be automatically opened and closed convenientlyand fast.

The invention relates to a pneumatic slag discharge valve capable of continuously opened and closed automatically, which comprises a slag discharge valve, a driving mechanism, a position sensor unit, a support and a central control chamber. The slag discharge valve comprises a valve body and a movable gate plate, the valve body is provided with a channel, a flow guiding hole is arranged on the gate plate, and a sealing device is disposed between the gate plate and the valve body; a furnace bottom flange is disposed on one end surface of the channel, and a pipe flange is disposed on the other end surface of the channel; the driving mechanism comprises a compressed air source, an electromagnetic reversing valve, a cylinder, a piston arranged in the cylinder and a piston rod; the cylinder is divided into a first air chamber and a second air chamber by the piston, a first air passage is communicated with the first air chamber, and a second air passage is communicated with the second air chamber; and the position sensor unit comprises a first position sensor, a second position sensor and a positioning ring. The pneumatic slag discharge valve resolves the technical problem that fused slag cannot be discharged and a valve cannot be automatically opened or closed. Besides, opening and closing of the valve can be automatically controlled continuously, and opening and closing time of the valve can be detected in real time.

The invention discloses an automatic opening and closing explosion-proof and fireproof safety door device and a working method thereof. The automatic opening and closing explosion-proof and fireproof safety door device is composed of a fixing frame, a controller, an alarm, a lifting device, a pressure sensor, a protecting plate, a temperature sensor and sliding rails. The sliding rails are arranged on the two sides of the interior of the fixing frame. The lifting device is arranged at the top ends of the sliding rails. The controller is arranged at the center of the upper portion of the lifting device. The alarm is located at the upper end of one of the sliding rails. The protecting plate is located between the two sliding rails. The pressure sensor and the temperature sensor are arranged in the center of the protecting plate. According to the automatic opening and closing explosion-proof and fireproof safety door device and the working method thereof, the device is low in dead weight and manufacturing cost, safe, environmentally friendly, easy to transport and install and stable in performance, materials are firm, the device can effectively cope with a fire scene, and a fire and toxic and harmful gas, smoke, dust and other impurity particles generated in the fire are effectively isolated.

The invention relates to a pneumatic pulse valve capable of continuously and automatically opening and closing, comprising a pulse valve and a driving mechanism, wherein the pulse valve and the driving mechanism are fixedly connected together through a supporting rod. The pulse valve comprises a valve seat, a valve cap arranged in a valve body and a valve rod capable of driving the valve cap to move. The driving mechanism is used for controlling the pulse valve to open or close through the motion of driving the valve rod and the valve cap, and a sealing device is arranged between the valve rod and the pulse valve. The pneumatic pulse valve capable of continuously and automatically opening and closing also comprises a position sensor unit and a central control room, wherein the position sensor unit is arranged on the supporting rod, and the central control room is connected with the position sensor unit. The position sensor unit can sense the action message of the valve rod and send the action message to the central control room, and the central control room is used for controlling the action of the driving mechanism. The pneumatic pulse valve capable of continuously and automatically opening and closing solves the technical problems that the traditional pulse valve can not automatically open or close and is inconvenient for detection, and the pneumatic pulse valve capable of continuously and automatically opening and closing can be continuously and automatically controlled to open or close.