31results about How to "Effective opening and closing" patented technology

An assembly for opening and closing a furrow in soil includes a furrow opener with a pair of discs positioned at an angle relative to each other. The discs each have an inner side facing toward each other and an outer side facing away from each other. Each disc also has a leading edge and a trailing edge relative to a travel direction. A furrow closer includes a pair of wheels, each having an inner side facing toward each other and positioned adjacent to a corresponding disc outer side. Each wheel also has a leading edge positioned between a corresponding disc leading edge and disc trailing edge, and a trailing edge positioned rearward of a corresponding disc trailing edge relative to the travel direction.

The invention relates to a locking apparatus and a cap having the same. The locking apparatus is arranged on a cap which includes a main body part supported by one side of a container opening and an opn-close part that is supported by the main body part and can cover one side of the container opening, the locking apparatus capable of opening or closing a connecting state of the open-close part andthe main body part. The locking apparatus includes: a locking part, one side of which can pressurize one field of the open-close part; a convergence pin which is supported by the main body part and supports convergence of the locking part; an elastic part which provides elasticity to enable one field of the open-close part to be pressurized by the locking part; a movement part, one side of whichmoves in one direction of the locking part and which enables the elastic part to contract; and an open limit part, which is formed by protruding from the main body part and forms a clamp hole to allowinsertion of one portion of the movement part.

The invention discloses a cooking device.The cooking device comprises: a cooking cavity which is communicated with a steam generator and is movably connected with an opening and closing door; a valve piece which comprises a flow inlet and a flow outlet, wherein the flow inlet is communicated with the bottom wall of the cooking cavity; and a flow collecting container which is communicated with the flow outlet and also comprises a water outlet, wherein the water outlet is connected with a first valve body, and the first valve body is suitable for discharging water in the flow collecting container. The valve piece is arranged on the cooking cavity, opening and closing of the valve piece can be controlled according to the pressure intensity in the cooking cavity on the side of the flow inlet and the pressure intensity difference on the side of the flow outlet, the flow collecting container is communicated with the first valve body and the flow outlet, and the pressure intensity on the side of the flow outlet can be effectively controlled by controlling work of the first valve body, so that opening and closing of the valve part can be effectively controlled, high-pressure steam in the cooking cavity can be conveniently discharged, a user is prevented from being scalded when opening the opening and closing door, and meanwhile accumulated water in the cooking cavity can be effectively removed.

The invention discloses a car collision dummy chest structure with a collision detection method, and relates to the field of car collision dummy chest structures. The existing chest structure cannot effectively measure data, and the use environment is limited problem, the following scheme is proposed, which includes a base plate, a support frame, and a cover plate, a hinge is provided between the cover plate and the base plate, a support block is provided in the support frame, and a front side of the support frame is provided with a For the dummy mould, slideways are provided at the upper and lower ends of the front side of the support block, and a pressure sensor is arranged in the support frame, and an L-shaped first limiting plate is fixedly connected to the rear side of the pressure sensor. A cavity is arranged in the frame, and the upper and lower inner walls of the cavity are fixedly connected with a second limit block, and the rear side of the pressure sensor is fixedly connected with a threaded barrel, and a threaded rod is sleeved in the threaded barrel. The device has the characteristics of convenient intuitive and effective measurement data, easy disassembly and assembly, and the use of ambient light.

The invention discloses an electro-hydraulic pilot control type plug-in type check valve which comprises a valve body, a valve element, a valve cover, a spring and a pilot valve. The valve cover is connected to the valve body in a covering mode, and the valve element and the spring are arranged in the valve body. The spring is connected between the valve cover and the valve element in a pressing mode, a cover plate is arranged on the valve cover, and a safety oil cylinder is defined by the valve cover and the cover plate together. A piston type ejector rod used for executing opening and closing of the valve element and for detecting whether the valve element is closed or not is arranged in the safety oil cylinder in a sliding mode. One end of the piston type ejector rod is connected with the valve element, and the other end of the piston type ejector rod extends out of the cover plate. The valve element comprises a plug-in check valve arranged in the valve element. The two ends of the plug-in check valve are communicated with a first hole and a valve element cavity respectively, and the allowed flowing direction of the plug-in check valve is the direction from the first hole and the valve element cavity. The safety oil cylinder is divided into two rod cavities, namely a first piston cavity and a second piston cavity, by the piston type ejector rod. The electro-hydraulic pilot control type plug-in type check valve has the advantages of being simple and reasonable in structure, high in safety, fast in closing response, low in noise, and wide in application range.

The invention discloses an extra-high-voltage earthing switch with series-wound main circuit and arc extinguishing chamber for opening and closing an induction current. The extra-high-voltage earthing switch comprises an earthing switch body, an arc extinguishing chamber and an arc extinguishing chamber operation mechanism; the earthing switch body comprises a mounting base, an earthing base, a porcelain bottle, a main earthing knife switch, a small earthing knife switch, a main earthing knife switch operation mechanism and a small earthing knife switch operation mechanism; a main static contact is mounted at the top end of the porcelain bottle; the earthing base is mounted above the mounting base through an insulating column; the bottom end of the main earthing knife switch is mounted on the earthing base and connected with the main earthing knife switch operation mechanism, and a main movable contact is mounted at the top end; the bottom end of the small earthing knife switch is mounted on the mounting base and connected with the small earthing knife switch operation mechanism, a small movable contact is mounted at the top end, and a small static contact is mounted on the earthing base; and one end of the arc extinguishing chamber is connected with the arc extinguishing chamber operation mechanism while the other end is connected with the earthing base. The extra-high-voltage earthing switch has the advantages of simple structure, high reliability, capacity of opening and closing the high-parameter induction current and the like.

The invention discloses a self-cleaning garbage truck, which relates to the technical field of garbage truck cleaning. Including the head, tires and carriage, side panels are arranged on the front and rear sides of the carriage, a cover plate is arranged above the carriage, a first chute is arranged at the upper end of the side plate, a sliding mechanism is arranged at the lower end of the right side of the cover plate, and a protective layer is arranged on one side of the carriage The upper end of the protective layer is provided with a lifting mechanism. The lifting mechanism includes a screw rod, a fixed plate and a rotating sleeve. The sliding mechanism includes a sliding column and a rotating wheel. There are second spray ports on the left and right sides of the upper end of the inner side of the side plate. Traction rollers are provided, and the traction rollers are connected by a drive crawler, and a plurality of cleaning roller brushes are arranged between the lower part of the drive crawler and the bottom of the carriage. The invention overcomes the shortcomings of the prior art, is convenient to use, can clean the garbage truck efficiently and quickly, and improves the cleaning efficiency of the garbage truck.

The invention discloses an air enema instrument with an air purification function. The air enema instrument with the air purification function comprises a vacuum pump, an inlet end of an electromagnetic valve, an end of a connecting pipe, an inlet end of an exhaust air bottle and an inlet end of a purification unit, wherein the inlet end of the electromagnetic valve is connected with an air outlet end of the vacuum pump, the end of the connecting pipe is connected with a first outlet end of the electromagnetic valve, the inlet end of the exhaust air bottle is connected with a second outlet end of the electromagnetic valve, the inlet end of the purification unit is connected with an outlet end of the exhaust air bottle, the outlet end of the purification unit is connected with an air inlet end of the vacuum pump, and the other end of the connecting pipe is externally connected into a human body. According to the air enema instrument with the air purification function, an air inlet pipeline and an air outlet pipeline can be effectively separated in a crossing mode to avoid cross infection by arranging the electromagnetic valve at the joint of the air inlet pipeline and the air outlet pipeline; exhaust air can be recycled by arranging the purification unit at the outlet end of the exhaust air bottle. The air enema instrument with the air purification function is safe, reliable, convenient and fast to operate, intelligent and efficient, and has a good market prospect.

A sprinkler head (1), comprising a sprinkler body (6) with a water flow path (10) formed therein, capable of being mounted on the sprinkler body (6) in an approachable and detachable manner The rod (15), the on-off valve (13) for opening and closing the flow path (10), has a fulcrum (17) rotatably supported on the spray head body (6), and a contact with the operating rod (15). Power point parts (18, 19) and the relay rod (16) of the action point part (20) abutted with the on-off valve (13), the relay rod (16) and the operating rod (15) and the nozzle main body (6) The positional relationship of the valve rotates correspondingly to open and close the on-off valve (13). Among them, two or more power point parts (18, 19) with different distances from the fulcrum part (17) are set on the relay rod (16). , at the water-stop position of the on-off valve (13), the point of force (18) formed farthest from the fulcrum (17) is abutted against the operating rod (15), and the opening ratio of the on-off valve (13) is At a position where the predetermined degree is large, another point of force (19) is brought into contact with the operating rod (15). According to the above configuration, in the sprinkler head, even in the state of high water pressure at the water stop position, the workload on the control lever can be reduced.

The invention discloses a continuous river channel sewage collection and cleaning system, the structure of which includes a load-bearing platform, a hoist, a sewage catcher, and a sewage collection tank. The dirt collection tanks are connected by a sliding fit. There is a chute at the matching position between the dirt catcher plate and the side of the dirt collection tank. The dirt catcher plate is hollow and its top is not closed. The dirt catcher plate is composed of a dirt catcher frame , carrying liner, support base, lifting control center, impact detection module, installation port, liner movable mechanism, the trash plate of the present invention is made into a structure that the top of the cavity is not closed, and the load-carrying liner acts on the inside of the trash block outer frame , when the water level rises higher and overflows the trash baffle, the water will flow into the load-bearing liner to increase the weight of the trash baffle, and when the gravity is greater than the buoyancy, the trash baffle will sink, so as to better realize the flow and reduce the two side pressure.

A femtosecond heterodyne optical Kerr gate and an imaging device and method based on the optical Kerr gate. The detection optical path of the imaging device is sequentially provided with the target to be measured, a femtosecond heterodyne optical Kerr gate composed of a polarizer, an optical Kerr medium and a polarizer, and a CCD; and the polarization direction of the polarizer and the detection pulse The vertical direction of polarization has a heterodyne angle of 3-5°; the switching optical path is provided with an optical delay line and a half-wave plate in sequence, and the switching pulse and the detection pulse overlap in the optical Kerr medium. The imaging method is as follows: the femtosecond pulse is divided into two channels, the detection pulse is incident on the sample to be tested, and enters the femtosecond heterodyne optical Kerr gate after reflection and transmission; The component of the detection pulse that carries the sample topography information is incident on the CCD by the gated detection pulse to obtain a topography image of the sample to be tested with ultra-high time resolution. The invention has the advantages of simple optical path, very short gate time, imaging spatial resolution close to system diffraction limit and the like.

The present invention is applicable to the technical field of sewage treatment, and provides a sewage treatment device for canned fruit processing, including a carrying device, a quantitative adding device and a control system, and a cleaning device and a conveying device are installed inside the carrying device; the quantitative adding device includes an adding box, Guide rail, moving block and guiding device, the adding box is connected to the moving block through the guiding device, the top plate is connected to the box body through the reset piece, and there is a feeding hole on the box body; the guiding device includes a guide rod, a connecting block and a rotating piece, and the upper end of the connecting block is fixed Connect the add-on box, the rotating part includes a rotating sleeve and a bracket, and the rotating sleeve is sleeved on the guide rod; the moving block is sleeved on the guide rail, and the other end of the guide rail is provided with a top cover device. crossbar. Thereby, the present invention can effectively treat waste water with different drug concentrations, and improve work efficiency and work quality.