74results about How to "Accurate opening and closing" patented technology

The invention discloses a backpack type electric fertilizer applicator which comprises a charging barrel. The bottom of the charging barrel is provided with a discharging opening. A sliding plate is arranged below the discharging opening to be matched with the discharging opening. The lower part of the charging barrel is connected with a base of which the lower part is connected with a bottom cover. The base is provided with a fan blade in which a shaft sleeve is arranged. The shaft sleeve is provided with a rotary shaft of which the upper end is rotatably matched with the bottom of the charging barrel through a bearing. The lower end of the rotary shaft passes through the base to be connected with a helical tooth tray. A motor fixing seat and a panel are arranged below the base. One side of the motor fixing seat is provided with a motor output shaft which passes through the motor fixing seat to be connected with a small gear. The small gear is engaged with the helical tooth tray. The helical tooth tray drives the rotary shaft. The panel is provided with a power switch and a charging socket. A battery box is arranged below the base, and a battery is arranged in the battery box. The battery supplies power to the motor. The power switch is connected between the battery and the motor. The shaft sleeve is of an excentric shaft sleeve. The sliding plate is provided with a vibrating ring. The excentric shaft sleeve is contacted with the vibrating ring for driving the sliding plate to swing. The pendular sliding plate and the discharging opening are opened and closed, and the bottom of the charging barrel generates micro vibration, so that the chemical fertilizer falls down from the discharging opening.

The invention relates to a ball park service robot, and belongs to the field of intelligent robots. The ball park service robot comprises a ball delivering device, a haulage motor walking device, a ball grabbing mechanism and a robot body, the ball delivering device is arranged at the back end of the robot body, the haulage motor walking device is arranged at the middle portion of the robot body,and the ball grabbing mechanism is arranged at the front portion of the robot body; and through electromechanical liquid cooperative control, automatic walking, obstacle avoidance, collecting and shooting functions of the ball park service robot are completed. The robot is simple in overall structure, concise in mechanism, reliable in running, low in manufacturing cost and low in running and maintaining cost, collecting and shooting of large balls like basketballs can be achieved, and the ball park service robot can be widely applied to ball park exercise training for various balls.

The invention relates to an angle toggle electric valve device prepared from a manual ball valve and an additionally mounted micro gear motor. The device comprises a ball body of the manual ball valve, a valve shaft, a control box body, a fixed bolt of a supporting frame, a closing valve travel switch, the supporting frame, a handle connecting plate, a fastening screw of a universal joint, a motor fixing plate, bolts of the motor fixing plate, the micro gear motor, retaining screws of the micro gear motor, an output shaft of the micro gear motor, the universal joint, power transmission bolts, retaining screws of the handle connecting plate, an opening valve travel switch, a valve manual handle, connecting screws of a box body valve, a connecting plate of the box body valve, and a ball valve. The device is easy and convenient to handle, high in reliability, low in power consumption and cost, convenient to maintain and manage, suitable for automatic control of large-scale drop irrigation, and also suitable for independent control.

An adjustable furniture damping operation structure comprises a fixing seat, a hinge arm, a spring, a connecting arm assembly and a stop element. The connecting arm assembly at least comprises a first connecting arm and a second connecting arm. One end of the first connecting arm and one end of the second connecting arm are hinged to the fixing seat and the other end of the first connecting arm and the other end of the second connecting arm are hinged to the hinge arm. The stop element is hinged to the hinge arm and turned over, opened and closed to the fixing seat through the spring. A damping device in transmission fit with a lever is arranged on the fixing seat. The damping device comprises a swing rod element, a lever element and a damper. The first connecting arm at least drives the swing rod element when the stop element is closed, the swing rod element drives the lever element to act on the damper, and the damper is compressed so as to achieve the buffer effect. An adjusting assembly is arranged on the damping device and used for adjusting the position of the swing rod element or the lever element or the damper relative to the fixing seat, so that force acting on the damper by the swing rod element and/or the lever element is increased or decreased, and finally the buffer force is adjusted when the stop element is closed.

In an engine intake control apparatus, a cover is made of synthetic resin, a motor support plate is made of metal, a positioning boss is integrally formed on the cover, a first positioning hole arranged on a motor support plate is fitted on an outer peripheral surface of the positioning boss, and the positioning boss is positioned and fitted with a throttle valve body each other. With such an engine intake control apparatus, it is possible to perform with high accuracy the mutual positioning between the three components, i.e. the motor support plate, the cover and the throttle valve body, and it is possible to effectively improve the opening and closing accuracy for the opening and closing of the throttle valve by the motor.

The invention discloses a side suction type range hood. The range hood comprises a shell, a panel and a smoke gathering mechanism, wherein the panel and the smoke gathering mechanism are positioned onthe front side of the shell; an air inlet is formed in the panel; and the smoke gathering mechanism comprises a smoke deflector which is connected to the panel in a rotating mode and can open or close the air inlet. The range hood is characterized in that the smoke gathering mechanism further comprises two fan wing mechanisms; each fan wing mechanism comprises a fan wing main plate and a fan wingauxiliary plate, wherein the fan wing main plate is in linkage with the smoke deflector, and the fan wing auxiliary is in linkage with the fan wing main plate; the fan wing main plate and the fan wing auxiliary plate of each fan wing mechanism can be located at the first positions on the two sides of the shell when the smoke deflector is closed and can be at least partially located on the front side of the panel and located at the second positions on the two sides of the smoke deflector at the same time when the smoke deflector is opened; and when the fan wing mechanisms are located at the second positions, the fan wing main plates and the fan wing auxiliary plates form fan wing shapes with larger upper parts and smaller lower parts.

The invention provides a seating induction device of an intelligent pedestal pan, and belongs to the technical field of sanitary ware. The seating induction device solves the problems that a seating induction device of an existing intelligent pedestal pan is short in service life, inconvenient to maintain and the like. The intelligent pedestal pan comprises a seat ring and an upper whole pedestal pan cover, a rotating shaft is arranged at the inner end, close to the upper whole pedestal pan cover, of the seat ring, the seating induction device comprises a fixed frame, a moving frame, a spring and a microswitch, the moving frame is clamped in the fixed frame, the moving frame can move relative to the fixed frame, the spring is located between the fixed frame and the moving frame, one end of the spring abuts against the fixed frame, the other end of the spring abuts against the moving frame, the microswitch is fixedly connected to the fixed frame, a connecting shaft and a spring board are arranged on the moving frame, the connecting shaft is connected with the rotating shaft, and the spring board and a contact of the microswitch are correspondingly arranged. The seating induction device has the advantages of being high in flexibility, long in service life and the like.

The invention discloses a manually-opened-and-closed gate valve. The gate valve comprises a valve frame, a gate plate and a pushing mechanism, wherein the gate plate is arranged in the valve frame, the pushing mechanism is fixed to the valve frame and is in thread connection with the gate plate, a screw rod of the pushing mechanism rotates to push the gate plate to slide to open and close a valveport in the valve frame, and the top end of the gate plate corresponds to a scale on the valve frame to control the opening and closing size of the valve port. According to the gate valve, the problems that the opening and closing flow is not easy to control and the opening and closing labor intensity is high in the original solid particulate matter intercepting and opening and closing process aresolved, and the advantages that the structure is simple, opening and closing are accurate, the flow can be conveniently controlled, the operation strength is low, and the operation is easy and convenient are achieved.

The invention discloses an elastic limiting mechanism for a furniture sliding door. The elastic limiting mechanism comprises an elastic limiting device. The elastic limiting device comprises a fixed component and a swinging component. The swinging component is arranged on the fixed component. Rollers are correspondingly arranged on the fixed component left and right. A torsional spring is arranged between the swinging component and the fixed component. The swinging component is arranged on the fixed component in an elastic swinging mode through the torsional spring and is provided with a rotating wheel. The rotating wheel elastically swings on the fixed component within a certain range through the matching of the swinging component and the torsional spring. The stress direction of the rotating wheel points to one of the rollers all the time, and two elastic terminals of the rotating wheel are located on the outer side of one of the rollers and at the position within the radial distance of the two rollers. By means of the structural improvement, the elastic limiting mechanism has the characteristics of being simple and reasonable in structure, reliable in performance, convenient to operate, compact in connection between all the components, accurate in positioning, smooth and steady in opening and closing process, free of noise, small in applied force and the like, thereby being high in practicability.

The invention relates to a configuration mechanism for radiation shield concrete slurry used for a neutron research. The configuration mechanism for the radiation shield concrete slurry used for the neutron research comprises a rack and a configuration cylinder. The upper part of the configuration cylinder is provided with a particle feed inlet, the middle part is provided with a water injection inlet and a cement feed inlet, and the lower part is provided with a configuration outlet, and the configuration outlet is connected with a delivery cylinder through a delivery control valve. A vertically-directed stirring motor is arranged below an upper cover of the configuration cylinder. The lower part of the stirring motor is connected with a stirring rotating block, and the side of the stirring rotating block is provided with evenly stirring blades, and a stirring pulling rod is arranged at the lower part of the stirring rotating block. A stirring lifting seat is connected with the lowerpart of the stirring pulling rod. A stirring rod inclined outwards and downwards is evenly arranged around the stirring lifting seat. The configuration mechanism can feed granular raw materials separately. And through the action of the stirring blades, the granular raw materials can evenly fall into the bottom of the configuration cylinder, and with the stirring rod designed at the bottom, the rawmaterials can be fully mixed and stirred with cement and water, so as to ensure that the granular raw materials in the prepared concrete slurry basically maintain uniform.

The invention relates to a truck and a carriage of the truck. The carriage of the truck comprises a chassis, a driving mechanism, a locking mechanism and two box bodies; the driving mechanism, the locking mechanism and the two box bodies are arranged on the chassis, and the two box bodies are oppositely arranged and can be matched and communicated to form a protective cover for placing goods; a sliding way is arranged on the upper surface of the chassis in the longitudinal direction, at least one box body can slide along the sliding way under the action of the driving mechanism so as to open and close the protective cover, and when the protective cover is in a closed state, the locking mechanism can lock the relative positions of the two box bodies. The structure of the truck can be simplified, installation and operation are convenient, goods can be protected, and damage is prevented.

The invention relates to an electrically operated valve device combining a hand-operated inner lifting stop valve with a double-shaft motor. The electrically operated valve device comprises a valve body, a valve cap, an inner lifting body, an outer frame fixing bolt, an outer frame, a box body, an inner bracket fixing bolt, an inner bracket, an inner and outer bracket fixing bolt, a hand wheel, a hand wheel fixing seat, a universal joint coupling, a motor fixing screw, a motor fixing plate, a micro-reducing motor, a motor upper shaft, a measuring position rotating bar, a upper and lower position transmission plate bolt, a valve opening travel switch, an upper and lower position transmission plate, an upper and lower position transmission plate upright hole, a motor upper shaft coupling, a valve closing travel switch, a travel switch upright, a motor lower shaft, a motor fixing plate fixing screw, a upright fixing screw, a universal joint coupling fastening motor shaft screw, a valve transmission shaft, a universal joint coupling fastening valve shaft screw, a hand wheel fastening valve shaft screw, a valve shaft thread and an inner lifting body thread. The device has the advantages that the operation is simple and convenient, the reliability is high, the power consumption and cost are low and the maintenance and management are facilitated; the device is suitable for the automatic control of large-scale drip irrigation and independent control.

The present invention relates to a switching device for the wrench for taking pipe of the plastic drawing and blowing machine, which comprises a support, a rolling disc arranged on the support, drawing and blowing machines for a plurality of working positions arranged on the rolling disc, the drawing and blowing machines for each working position is provided with a wrench for taking pipe, the wrench is driven by the inner and outer reciprocating movement mechanism, the sliding bar head of the wrench is provided with left and right tong heads which are provided with gear teeth respectively, a pushing bar is arranged on the sliding bar and is connected with rack at the head part, the rack meshes with the gear teeth of the tong head, an ejector cam is arranged at the end part of the pushing bar and contacts with the offsetting spring of the sliding bar, the spring is provided with a cover plate, the left and right tong heads are provided with jaws respectively, the jaw contacts with the plastic bottle tube. The present invention is characterized in that the left and right tong heads are respectively provided with tong rams, roller is arranged on the tong ram, guide rail is arranged on the support, the roller contacts with the guide rail.

The invention relates to the technical field of bicycles, in particular to a bicycle with a light control device. The bicycle comprises a bicycle body and a light control device arranged on the bicycle body. The light control device comprises a forward driving lamp, a backward driving lamp, a front steering lamp, a rear steering lamp, a brake lamp, a control circuit, a key switch and a speed sensor, wherein the key switch and the speed sensor are connected with the control circuit. The rear steering lamp is mounted on the bicycle through a folding and unfolding mechanism; the folding and unfolding mechanism can drive the rear left steering lamp and the rear right steering lamp to be unfolded in a relative swing mode in the horizontal direction or folded and stored in a containing cavity ofthe tailstock in a face-to-face swing mode. The overall size of the bicycle is reduced, the rear steering lamp is prevented from obstructing daytime driving and bicycle parking, and when lamplight isneeded, the rear left steering lamp and the rear right steering lamp are driven by the folding and unfolding mechanism to oppositely swing and be unfolded to the two sides of the bicycle, and observation of other vehicles and pedestrians is facilitated.