42results about How to "Control opening size" patented technology

The invention relates to a pair of electric scissors. The scissors include a main body, a motor, a planet gearbox, a transmission assembly, a mobile blade assembly and a fixed blade, wherein the output shaft of the motor is connected with the input end of the planet gearbox, the output end of the planet gearbox is connected with the input end of the transmission assembly, and the transmission assembly is arranged on one end of the main body; the mobile blade assembly and the fixed blade are both mounted on the other end of the main body, and the mobile blade assembly and the fixed blade form a scissor shape and are both connected with the main body through a rotating shaft; the mobile blade assembly is rotatably connected with the transmission assembly and driven by the transmission assembly to rotate, and cooperates with the fixed blade for cutting during rotation. Compared with the prior art, the motor controls the rotation of the mobile blade assembly through the planet gearbox and the transmission assembly, the mobile blade assembly cooperates with the fixed blade for cutting, so that electric cutting is achieved, more convenience is provided, labor intensity is decreased, shearing efficiency is improved and the electric scissors are high in safety during shearing.

The invention discloses an unloading device, agricultural machinery with the same and an unloading method. The unloading device comprises a grain tank and a horizontal auger. The grain tank is provided with a first unloading hole through which grains are arrayed to the horizontal auger. The unloading device further comprises an unloading valve which controls opening and closing of the first unloading hole. According to the unloading device, opening and closing of the unloading hole of the grain tank are controlled through the arranged unloading valve, when unloading is of no need, the unloading valve can close the unloading hole at any time, the grains in the grain tank are prevented from being arrayed to the horizontal auger, the grains in the grain tank can be prevented from being accumulated on the horizontal auger and a back unloading cylinder, accordingly, when the unloading hole is continuously opened for unloading, the horizontal auger and the back unloading cylinder cannot be blocked, the horizontal auger can still rotate to convey grains, working efficiency is improved, in addition, the size of an opening of the unloading hole of the grain tank can be controlled through the unloading valve, and therefore unloading speed can be adjusted.

The invention discloses a greenhouse for grape planting. The greenhouse for grape planting comprises an upper top plate, a servo electric cylinder, a control switch, a thin film winding shaft, a closed thin film, a fixed connecting rod, a positioning clamping piece and a limiting clamping base, wherein the upper top plate is fixed to an upper supporting frame, lower supporting legs are fixedly arranged on the lower side of the upper supporting frame, a reinforcing rod is fixedly arranged at the joint of the upper supporting frame and the lower supporting legs, a middle supporting column is fixedly arranged in the middle of the lower side of the reinforcing rod, a movable connecting base is fixedly arranged on the outer side of the middle supporting column, an inner movable frame is installed on the outer side of the movable connecting base, the control switch is fixedly installed on the middle supporting column, the control switch is electrically connected with the servo electric cylinder, and the outer side of the thin film winding shaft is wound with the closed thin film. According to the greenhouse for grape planting, after grapes are ripe, the position height of the grapes on the inner movable frame can be changed so that the grapes can be conveniently picked, the grape picking efficiency is effectively improved, and the use value of the greenhouse can also be improved.

The invention discloses a water-saving temperature control device for a water heater. The device comprises a downcomer and a first water tank, wherein a plurality of water pipe branches are successively divided outside along the water down direction of the downcomer to lead water in the first water tank to a first water outlet pipe in the downcomer, a drain pipe for draining water of the whole device and a first water inlet pipe for introducing water into the first water tank successively. A thermistor for detecting the water temperature at the position is arranged on the downcomer above the first water outlet pipe, a normally closed temperature switch for inducing the water temperature in the position is arranged on the downcomer between the first water outlet pipe and the drain pipe; a first normally closed electromagnetic valve is arranged on the first water outlet pipe, a normally open electromagnetic valve is arranged on the drain pipe, and a second normally closed electromagneticvalve is arranged on the first water inlet pipe. The water-saving temperature control device disclosed by the invention has the advantages that by additionally arranged the first water tank, the water temperature of water discharged from the drain pipe is a preset water temperature by detecting the whole circuit, so that the energy source is saved greatly, and the water using comfort level is also guaranteed.

The invention relates to the technical field of medical equipment, in particular to a beam-limiting device blade driving device which is used for driving blades of a beam-limiting device. The beam-limiting device blade driving device comprises an upper-layer plate, a lower-layer plate, a rotating wheel, four hinge pins and four blade fixing and transmitting mechanisms, wherein the rotating wheel is horizontally arranged below the upper-layer plate, four pin holes are distributed in the rotating wheel in a central symmetry mode, and the rotating wheel is fixed to the lower surface of the upper-layer plate through a flange; the four hinge pins penetrate through the pin holes respectively and are arranged vertically; the four blade fixing and transmitting mechanisms are arranged at the lower ends of the four hinge pins respectively. The invention further provides the beam-limiting device provided with the beam-limiting device blade driving device and an X-ray machine. The beam-limiting device blade driving device is simple in structure, low in cost and easy to maintain.

The application discloses an epitaxial structure and its manufacturing method, which is located on the first carrier supply layer on the substrate; the control structure is located on the first carrier supply layer, including multiple quantum well layers; multiple V-shaped depressions , extending from the surface of the regulating structure into the regulating structure; and a second carrier supply layer located on the regulating structure, wherein at least two V-shaped depressions are different. The epitaxial structure of the present invention controls the extension depth of each V-shaped depression in the control structure through the regulating structure, which not only improves the uniformity of the distribution of the V-shaped depressions in the longitudinal direction of the epitaxial structure, disperses the stress, but also increases the mechanical strength of the epitaxial structure. The uniformity of intensity, thereby improving the internal quantum efficiency of the light-emitting element.

The invention provides a hydro-pneumatic suspension system and engineering machinery with the same. The hydro-pneumatic suspension system comprises a suspension cylinder, a pressure sensor, a controller and an energy accumulator unit. The pressure sensor is configured to detect the pressure of a rodless cavity of the suspension cylinder and output a pressure value. The controller is configured toreceive the pressure value and compare with a preset pressure value, a first control command corresponding to the pressure value is output according to the corresponding relation between the preset comparison result and the first control command. The energy accumulator unit is configured to receive the first control command and perform the corresponding preset actions to obtain the corresponding preset stiffness. The preset actions include changing the initial pressure of an energy accumulator and / or changing the capacity of an energy accumulator connected to the hydro-pneumatic suspension system. The hydro-pneumatic suspension system and the engineering machinery with the same can change the stiffness of the suspension system under different loads to achieve better hydro-pneumatic suspension function. Furthermore, suitable damping can be matched according to different road conditions to improve the driving and riding comfort.

The invention relates to a multifunctional umbrella structure with holes. The multifunctional umbrella structure comprises ribs, an umbrella rod and an umbrella cover. The ribs are connected to the umbrella rod. The umbrella cover is connected to the ribs and provided with the through holes. The through holes are formed in the umbrella cover; when the wind is strong, the umbrella cover is not prone to being lifted up; when the multifunctional umbrella structure is used in the sun, part of sunshine can enter the multifunctional umbrella structure, a small amount of sunshine can be received while the sun-resistant effect is achieved, and the body immunity can be improved.

The invention provides a stacked three-way flow valve, and belongs to the technical field of three-way flow valves. The stacked three-way flow valve comprises a valve body, a flow adjustment valve core and a pressure compensation valve core; a valve hole is formed in the valve body; the valve hole comprises an oil outlet chamber, a first channel, an oil inlet chamber, a second channel, an oil returning chamber, a third channel and a bottom chamber which are connected in sequence; a first through hole is formed in the flow adjustment valve core; a second through hole is formed in the pressure compensation valve core; the pressure compensation valve core is arranged in the oil inlet chamber and the oil outlet chamber, and the first through hole is positioned in the first channel; the pressure compensation valve core is arranged in the oil inlet chamber, the oil returning chamber, and the bottom chamber, and seals the third channel; and the second through hole is positioned in the secondchannel. The stacked three-way flow valve has the beneficial effects that the pressure compensation effect is good; stable flow can be maintained; the pressure change difference at an inlet is small;and the speed of an executing element can be controlled precisely.

The invention relates to a manual tightly-pressing tool for lap joint of colorful plate tiles and an operating method of the manual tightly-pressing tool. The manual tightly-pressing tool comprises asupport, an undercutblock and a limiting block, the lower portion of the support and the upper portion of the undercut block are hinged through a rotary shaft, and the upper side and the lower side ofthe rotary shaft are fixedly provided with a limiting handle and a connecting rod correspondingly. The limiting block is arranged on the connecting rod in an adjustable mode, a pressing shaft is arranged on the upper portion of the undercut block, and an undercut tooth is arranged on the lower portion of the undercut block. A rotatable transmission shaft and a gear set capable of increasing torque are arranged on the upper portion of the support, an undercut handle is fixed to the upper side of the transmission shaft, and an input gear of the gear set is coaxially connected with the transmission shaft. One end of a transmission rod is eccentrically hinged to an output gear of the gear set, and the other end of the transmission rod is hinged to the pressing shaft. The pressing shaft and the limiting block are located on the two sides of the rotary shaft correspondingly. During work, after the undercut handle and the limiting handle are operated, the undercut block tightly presses the one side of the lap joint in an undercut mode, and the limiting block tightly presses the other side of the lap joint in a limiting mode. Through the manual tightly-pressing tool, the water leakage phenomenon is avoided, tile faces are not prone to being damaged, operating is easy and capable of saving labor, the efficiency is high, the construction accuracy is high, and the cost is low.

The invention provides a gasahol pump which comprises a valve jacket, an end cover and a suction pipe, and is characterized in that a pump assembly consists of a ferrule, an inner inserted link, a spring and a button switch, wherein the suction pipe is connected at the bottom of the ferrule, and the inner inserted link is inserted in the ferrule; the ferrule is provided with a spacer arranged in the direction of a cross section, the spacer is provided with an axial through channel, the bottom end of the inner inserted link is adaptive to the channel in shape and can seal the channel; the button switch is matched with the inner inserted link and can drive the bottom end of the inner inserted link to leave away the channel, the spring is sheathed on the inner inserted link, and the spring has a trend for leading a first oblique surface and a second oblique surface to be supported tightly at all the time and the bottom end of the inner inserted link to seal the channel. The gasahol pump can be used for effectively controlling the opening size of the ferrule channel and can apply force easily by adopting horizontal pushing mode for operation; and in use process, the opening or closing of the ferrule channel can be realized through the mobile contact of the first oblique surface and the second oblique surface, wear caused by extrusion and deformation can be effectively reduced, and the service life can be prolonged.

The present invention relates to a control device for a lift landing door. The landing door is provided with a positioning hook, one end of the positioning hook rotates around a fixed shaft, a cheese block is fixed, and a retaining shaft is arranged 5-10mm away from the center of the landing door; a manual operation rod is fixed on one end of the positioning hook; the present invention can be widely used in the lift.

The invention relates to the field of granule manufacturing, and relates to an elevating opening and closing type material collecting device for plastic granules. The material collecting device comprises a material bag placed on the ground, a supporting frame, a floating lifting frame, a pair of hydraulic cylinders, a material guiding pipe, an opening and closing mechanism and a lower guiding cylinder, wherein the floating lifting frame can be vertically arranged on the supporting frame in a sliding mode, the pair of hydraulic cylinders are vertically arranged, piston rods of the hydraulic cylinders are connected with the floating lifting frame and supports the floating lifting frame, the material guiding pipe is located under a discharging port of a discharging chute, the opening and closing mechanism is used for opening and closing the discharging port of the material guiding pipe, the lower guiding cylinder is fixedly arranged on the supporting frame, the upper port of the lower guiding cylinder is located right under the discharging port of the material guiding pipe when receiving and guiding a material, and the lower port of the lower guiding cylinder is located right above the opening at the upper end of the material bag. The material guiding pipe can be temporarily closed when the bag is replaced, and after the bag replacement is completed, the material guiding pipe is opened again.

The invention belongs to the technical field of fishing devices, and particularly relates to a fishing net closing and opening device, a fishing device and a fishing net control method. A shear fork deformation mechanism is mounted at an opening of a fishing net and is movably connected with a traction mechanism; and the traction mechanism is suitable for controlling the shear fork deformation mechanism to drive the fishing net to close or open. According to the fishing net closing and opening device, the traction mechanism remotely pulls the shear fork deformation mechanism to drive the fishing net to be closed and opened, and the function of remotely and conveniently controlling the opening size of the fishing net can be achieved.