122results about How to "Turn on labor saving" patented technology

The invention discloses a refrigerator power-assisted door handle assembly and a refrigerator, and relates to the technical field of refrigerators. The refrigerator power-assisted door handle assembly is invented in order to solve the problem that when users use an existing refrigerator handle assembly to eject a refrigerator door away from a refrigerator body, a large amount of labor can be consumed. The refrigerator power-assisted door handle assembly comprises a support, a handle, a connecting rod mechanism and a reset piece. One end of the handle in the width direction is hinged to the support through a rotating shaft, and the other end of the handle is a hand-pulling end. The connecting rod mechanism comprises a first connecting rod, a second connecting rod and an ejector rod. The first end of the first connecting rod is connected with the handle, and the second end of the first connecting rod is hinged to the first end of the second connecting rod. The second end of the second connecting rod abuts against the first end of the ejector rod, and the middle part of the second connecting rod is hinged to the support. The ejector rod can slide linearly relative to the support. The second end of the ejector rod is used for abutting against the refrigerator body of the refrigerator, and the distance from the hand-pulling end of the handle to the rotating shaft is larger than the distance from the connecting point of the handle and the first connecting rod to the rotating shaft. The reset piece is used for applying reset force to the handle. The refrigerator power-assisted door handle assembly can be used in refrigerator power-assisted doors.

The invention discloses a gate valve and a manufacturing process thereof. The gate valve comprises a valve body with a T-joint structure, wherein an opening in the upper end of the valve body is connected with a valve cover; a valve stem penetrates into the valve body; the upper end of the valve stem is vertically connected with a handwheel, and the lower end of the valve stem is connected with a valve plate used for controlling opening and closing; a left connecting pipe and a right connecting pipe are respectively inserted into opposite openings on the left and right of the lower end of the valve body; the inner ends, adjacent to the valve plate, of the left connecting pipe and the right connecting pipe are respectively provided with a valve base; the peripheral surfaces of the left connecting pipe and the right connecting pipe are respectively welded and fixed together with the left and right side surfaces of the lower end of the valve body. Components, such as the valve body, the left connecting pipe and the right connecting pipe, in the gate valve are forged and molded, then are respectively processed and finally assembled without special fixtures, so that the labor strength is reduced, and the machining time is shortened.

The invention relates to the technical field of construction engineering pipelines. A manhole cover is composed of a manhole cover body, a base, pawls, cover opening ejector rods, elliptical reverse thread locking heads, unlocking opening reverse thread rods and the like. A trapezoid stopping ring on the bottom surface of the manhole cover body is sleeved with a pressure-proof rubber ring for preventing noise. When the manhole cover body is installed and placed on the base, the pawls are pressed down by the trapezoid stopping ring, and elastic force of ejector rod springs is transmitted to the pawls through levers and pawl connection rods to abut against and lock the trapezoid stopping ring so that an antitheft effect can be achieved. When the manhole cover body is opened, reverse thread pressure proof rubber plugs, gib headed keys and the elliptical reverse thread locking heads are taken out, the unlocking opening reverse thread rods are screwed into elliptical reverse thread locking holes, conical funnels and conical ejector rods are sleeved and connected, the levers are pushed, and the pawls are receded and unlocked through the pawl connection rods; and at the moment, the levers are just jacked to the upper ends of long-strip-shaped opening unlocking holes, and the manhole cover body is opened in a hidden mode by the pushing force of the unlocking opening reverse thread rods through the levers and the cover opening ejector rods. The contact surface between the manhole cover and a road is increased in a multilayer mode through a pawl mechanism box, a pressure-proof rubber ring flange face and a pavement flange face so that sedimentation can be prevented.

The invention provides an electric isolating valve, aiming at the problems of the traditional isolating valve that air does not flow smoothly in a wind tunnel contraction section, the sealing effect is poor and a gate is hard to open and close. The electric isolating valve is characterized in that a valve seat (2) is provided with an inflatable sealing ring (8) and the inflatable sealing ring (8) is internally provided with a cavity (9) communicated with an air tap outside; after being inflated with air, the inflatable sealing ring (8) is expended and closely clings onto the sealing face of a gate (3); after being deflated, the inflatable sealing ring (8) is sunken and departs from the sealing face of the gate (3). The electronic isolating valve has a good sealing effect; the gate can be opened and closed with a small force; moreover, the electric isolating valve has high repeated positioning accuracy; when the gate is opened completely, the gate is positioned stably, the airflow direction can be controlled accurately, the model flow field of airflow is slightly different from the actual flow field of airflow, and test data is closer to actual data.

The invention relates to an oblique-shaft type hydraulic self-control gate comprising gate piers, a gate floor plate, a gate plate, a waterstop, an oblique shaft and arc hydraulic damping devices. The gate piers are symmetrically and vertically disposed on two sides of the gate floor plate, and the oblique shaft is disposed on the gate pier on one side and is in rigid connection with the gate pier through an anchoring structure; the lower end of the oblique shaft is fixed at the joint of the gate pier on the side and the gate floor plate, and the upper end of the oblique shaft faces the upstream direction of water flow, and the oblique shaft is mounted obliquely with a 45-degree angle formed between the oblique shaft and the bottom edge of the gate pier of the side; the gate is fixed on the oblique shaft, and the arc hydraulic damping devices are arranged between the gate and one gate pier. By the oblique-shaft type hydraulic self-control gate, opening and closing of the gate can be controlled automatically according to the upstream water level, automatic control of the gate through upstream coming water is realized, a working system of unattended operation is realized, and popularization and application in practice are facilitated.

The invention provides a portable cable well lid opening tool. The portable cable well lid opening tool comprises a working arm composed of a fixed arm and a movable arm. The fixed arm and the movable arm are stacked forwards and backwards and hinged through a pin shaft in through holes in the upper ends, the portions, deviating from the central axis, of through holes in the lower ends of the fixed arm and the movable arm stretch to the two sides to form a fixed chute and a movable chute, a sliding shaft penetrates through the fixed chute and the movable chute, the sliding shaft is connected with the lower end of a linkage rod, the lower ends of the fixed arm and the movable arm are provided with working hooks with the stretching directions opposite to those of the fixed chute and the movable chute, the upper end of the fixed arm is fixedly connected with two parallel connecting arms of a bearing handle, sliding holes are oppositely formed in the two connecting arms, the two ends of a cross bar are provided with sliding faces matched with the sliding holes, the cross bar is positioned between the two connecting arms through the sliding holes and the sliding faces, the upper end of the linkage rod is connected with the cross bar, positioning nuts are arranged at the outer ends of the two sliding faces, reset springs are arranged at the two ends of each connecting arm respectively, and a control handle is arranged on the cross bar. Various cable well lids can be efficiently opened in a labor-saving mode.

The invention discloses an external protection system for a silicon cutting machine tool. According to the self characteristics of the machine tool, protection covers are divided into a machine tool body protection cover and a machine tool machining area protection cover; the two protection covers are connected and fixed with a machine tool body through a frame; the machine tool body protection frame and the machine tool machining area protection frame are subjected to split design so as to facilitate detachable assembly of the protection covers and the frame per se and flexible arrangement of a protection area; the machining area protection cover adopts a balancer sliding door, and gravity balance in a process of lifting the machine tool machining area protection cover is realized through lifting a balancer in a machine tool processing area so as to ensure a labor saving effect of the machine tool machining area protection cover in a lifting process and real-time positioning in a lifting process of the protection cover in a machining process and facilitates to observe the machining area; the whole protection covers and various parts are connected by means of screws and are thus convenient to disassemble, mount and maintain, materials are saved, the space is reduced and the structure of the machine tool is more compact.

The invention relates to improvement of a turn-over opening / closing device for a hanging-hole cover plate. In the invention, the assisted opening device for a turn-over cover plate adopts a plurality of torsion springs; and frameworks or hanging-hole walls on two axial rotation ends of the cover plate are equipped with revolving chains and door leaf turn-over movement guide rails, and the door leaf at the outermost side of the cover plate is connected with the revolving chains to be pulled. The turn-over opening / closing device has the beneficial effects that the torsion springs are combined with the revolving chains for assisted opening, which realizes simple opening structure and more stable opening / closing operation without adding occupied space, and maximally preserves effective space of a hanging hole, thus the device is more applicable to opening and closing the cover plate for multiple door leaves; the cover plate can be manually opened / closed and can be also opened / closed in a power-driven manner, and the cover plate can be firstly transformed by a component as required; and the assisted opening device is of a fully mechanical structure without damage, and has high service reliability and less maintenance workload.

The invention discloses a roof ventilator which comprises a structure support, wherein a rain baffle is arranged on the upper portion of the structure support, outer protective plates and water collection chutes are symmetrically arranged on the two sides of the structure support, and symmetrical exhaust outlets are formed between the rain baffle and the outer protective plates on the two sides. The roof ventilator is characterized in that a middle suspension valve plate and an electric push rod are arranged on the structure support and located at the position of each exhaust outlet, the middle of each middle suspension valve plate is hinged to the structure support, one side of each middle suspension valve plate is connected with the corresponding electric push rod, and each exhaust outlet can be closed by the corresponding middle suspension valve plate driven by the corresponding electric push rod after the middle suspension valve plate overturns. The roof ventilator has the advantages that the structure is reasonable, opening can be achieved effortlessly, damage does not occur easily, maintenance is convenient, external rain, snow and sand can be prevented from flowing backwards into a roof ventilation opening along with wind when the valve plates are opened, a closed shell communicated with a building can be formed when the valve plates are closed, the ventilation quantity adjusting function and the external air backflow adjusting function can be achieved by adjusting the opening degree of the valve plates, the long-term and effective lighting effect can be guaranteed, and manufacturing cost is low.

The invention relates to a self-closed anti-blocking water faucet which is suitable for the old and children vulnerable groups and has small opening force when in use and has no need to open faucet dredging water-replenishing small holes after long-time usage; the self-closed anti-blocking water faucet comprises a three-way valve body, a valve core assembly is arranged in the valve body, the inner part of the valve core is separated into a water inlet chamber, a water outlet chamber and a control chamber by the valve core assembly, the valve core assembly is composed of a middle washer, a piston, a cylinder sleeve, a spring, a valve rod, a small O-shaped ring, a large washer, a small washer and a large O-shaped ring; a needle-shaped anti-blocking pin is arranged at the top part of the lower end of the valve rod, and the lower end of the anti-blocking pin enters the water-replenishing small holes below the piston; as the water faucet is opened only by applying force to overcome the friction force of the small O-shaped ring and the tensile force of the spring, therefore, the self-closed anti-blocking water faucet has the advantages of easy opening and labor saving; as the needle-shaped anti-blocking pin is arranged at the top part of the lower end of the valve rod, the anti-blocking pin can move up and down to dredge the water-replenishing small holes one time when the water faucet is opened one time, thereby no need of dredging the water-replenishing small holes by opening the water faucet after long-time usage and bringing great usage convenience to the old and children vulnerable groups.

The invention relates to a high-pressure self-sealing valve. The high-pressure self-sealing valve comprises a valve body, a hand wheel and a valve cover. The valve body is provided with an inlet, an outlet and an operation opening. A front bracket and a back bracket which are siamesed are arranged in the valve body. The front bracket is provided with a valve port. The back bracket is provided with a through opening. A cylinder body, a valve rod and a cylinder rod are arranged between the front bracket and the back bracket. The cylinder body is fixed to the back bracket and provided with two sections of communicating hydraulic cavities which are formed in an included angle mode. One section of hydraulic cavity is provided with the sliding telescopic cylinder rod which faces towards the operation opening, and the other section of hydraulic cavity is provided with the sliding telescopic valve rod which faces towards the valve port. The cylinder rod is directional sliding relative to the valve body. The hand wheel is positioned rotating relative to the valve body. The hand wheel is in thread fit with the cylinder rod. The end, stretching out of the cylinder body, of the valve rod is connected with the valve cover used for sealing the valve port of the front bracket. When rotated, the hand wheel pushes the cylinder rod to compress the hydraulic cavities in the cylinder body and then pushes the valve rod to drive the valve cover to open the valve port, so that valve breakover is achieved. Conversely, self sealing of the valve cover under the stress of the inlet of the valve body is achieved, and sealing is reliable.

A ball valve without high-pressure torque is composed of valve body, connecting body, ball, valve rod and valve seat with an oil storage chamber communicated with oil controller. It has high sealing performance and is suitable for liquid delivering pipeline.

A drain valve for the toilet cistern features that shear rotation between the sealing surfaces of moving and static ceramic rings is used to open or close it. Its advantages are no leakage, long service life and small opening force.

The invention relates to a rotary gate automatically controlled by waterpower and provided with a horizontal shaft. The rotary gate comprises a lock chamber, bearing bodies, a gate shaft, a rotary gate body, suspension mechanisms, a cover plate bridge, a service bridge, a water-stopping unit and hydraulic vibration-damping units. Each bearing body is composed of a bearing groove, a bearing, a bearing gland and a bolt; the gate shaft is fixed in the bearing grooves through the bearings; the upper end of the rotary gate body is installed on the gate shaft through the suspension mechanisms; each hydraulic vibration-damping unit is composed of a piston cylinder, a piston and a piston rod; and each piston cylinder is connected to the service bridge at the side in the downstream direction through a bridge hinge, and each piston rod is connected to the lower end of the rotary gate body through a gate hinge. According to the invention, the state of water flow in the lock chamber is stable, the water storage and discharge capacity can be improved, the automatic opening and closing of the rotary gate can be controlled completely by means of the condition of upland water, the opening degree of the rotary gate can be automatically adjusted at any moment along with the water level change, and the problem of siltation in front of the gate can be solved.

The invention relates to an automatic floating-type lock gate. The automatic floating-type lock gate comprises a lock chamber, rolling wheel grooves, rails, a lock gate body, rolling wheels, a water stop and hydraulic damping devices. Gate piers and a gate lock base plate form the lock chamber; the lock gate body is installed between the gate piers on the two sides; the rolling wheels are arranged on the positions, on the two sides, of the bottom of a bottom face plate, the rolling wheels are distributed on the rails, the rails can be fixed onto the bottom faces of the rolling wheel grooves, and the hydraulic damping devices are fixed onto the inner sides of the rolling wheel grooves. By means of the automatic floating-type lock gate, the opening degree of the lock gate can be automatically adjusted at any time with the high-low changes of water levels of upland water, the gradual opening performance of the lock gate is good, and the opening and the closing are more strength-saving and flexible. The automatic floating-type lock gate does not need external power, and the automatic opening and closing of the lock gate can be achieved totally through the upland water.

The invention discloses a self-closed check valve which comprises a valve casing and a plunger, the plunger is connected with the valve casing in a sliding mode, the valve casing is provided with a liquid inlet pipe, a liquid outlet pipe and a hole shoulder, the hole shoulder is arranged between the liquid inlet pipe and the liquid outlet pipe, the plunger is provided with a valve plate, the self-closed check valve further comprises a spring and a sealing cover, one end of the spring is connected with the valve plate, the other end of the spring is connected with the sealing cover, and the sealing cover is connected with the valve casing. The self-closed check valve has the advantages that the spring is arranged, the valve plate can be closed automatically, the reliability of the whole check valve is improved, and backflow of fluid is prevented; meanwhile, a lever structure formed by a handle is arranged, so that opening is rapid and effortless.

This invention is a single-startup double sealed parallel sluice board valve, and belongs to F16K field of International Patent Classifying Form. It includes an exterior shell of the valve gate, which is composed of a valve case, a valve cover, a connector and a hand wheel. In the chamber of the valve casing are the valve pole and the sluice board. The hand wheel drives the nut of the valve pole, the nut drives the valve pole, and the pole drives the sluice board through the trapeziform thread, at the bottom of the interior chamber of the valve case is a power-fixing rod, the sluice board train is composed of two symmetrical sluice boards, on the top of the board is a T-shaped groove that is used to connected fixedly with the valve rod, in the middle of the board is a big through hole linking to the flow hole on the two ends of the valve case, above the big hole is a wedging slipper groove, the bottom of the big hole is connected with the small passage. This invention solves the problems of low-pressure sealing and power cannot be add manually. Its characteristics are: novel design, special exterior, small size, light weight, easily switches and energy saving, and it is suitable for the pipelines of oil chemistry and other industry of transferring the fluid medium.

The invention discloses a lever type automatic closing valve. Two valve door plates comprise arcs-shaped panels and fan-shaped side plates at two sides; a discharging opening formed in the lower end of a hopper is just sealed by the arc-shaped panels of the two valve door plates; the fan-shaped side plates at two sides are fixedly arranged at two sides of the arc-shaped panels; the upper end of each fan-shaped side plate is hinged to the outer side of the discharging opening of the hopper; the inner side of a hinging shaft of the two valve door plates is provided with mutually engaged gears; one end of a rope is connected with one valve door plate; the other end of the rope is connected with the end part of one end of a first lever; the end part of the other end of the first lever is hinged to a substrate; a connecting rod is in vertical arrangement; the upper end of the connecting rod is hinged onto the first lever; the lower end of the connecting rod is hinged to the end part of oneend of a second lever; the second lever is hinged to the substrate. The lever type automatic closing valve has the advantages that the valve can be opened in a labor-saving way; the effective controlof loading is realized; the labor is used in the whole process; the external connection of a power supply is not needed; safety and convenience are realized; the wharf loading and unloading efficiencyis improved.

The invention discloses a fully-sealed welded nuclear grade valve, which comprises a valve body and a valve seat, wherein the valve seat is provided with a rotating shaft, an oil cylinder, a check valve, a first valve hole and a second valve hole; the rotating shaft is pivoted with a rotating valve plug; the oil cylinder is connected to the first valve hole in the valve seat; the end part of the oil cylinder is provided with an oil cylinder cover plate; the rotating valve plug comprises a valve cover and a rotating piston connected with the valve cover; when the valve is closed, the valve cover closes the second valve hole, the rotating piston is positioned on the port of the first valve hole; and a spring is tightly sleeved on the rotating shaft. The valve is highly airtight and free from leakage. Without torque, the valve can be opened easily.

The embodiment of the invention provides a hydraulic electricity test handcart tool, which comprises a hydraulic power device, a fixed mount and a pushing device, wherein the hydraulic power device is fixed on the fixed mount; two long holes which extend in the horizontal direction and have different heights are respectively formed on both sides of the front end of the fixed mount; the pushing device is arranged in the fixed mount; two push pins with different heights are respectively arranged on both sides of the front end of the pushing device and pass through the two long holes on the same side of the front end of the fixed mount respectively from the inner side of the fixed mount; the power output end of the hydraulic power device is fixedly connected with the rear end of the pushing device, so that the power output end drives the push pins of the pushing device to move back and forth in the long holes in the fixed mount; an overflow oilway is formed between an oil discharging oilway and an oil return oilway in the hydraulic power device; and an overflow valve is arranged in the overflow oilway, so that oil in the oil discharging oilway flows back to an oil tank from an overflow channel when oil pressure in the oil discharging oilway overcomes spring pressure in the overflow valve.

The invention provides a profiling stripping structure applied to die opening engineering of a U-shaped workpiece drawing die. According to the structure, skirt edges are arranged on the two sides ofthe width direction of a U-shaped workpiece, the profiling stripping structure comprises a profiling stripping mechanism arranged on a lower die mechanism, wherein the profiling stripping mechanism comprises an upward ejection driving part and a profiling stripping block, the profiling stripping block is located in a preset space in a male die of the lower die mechanism in an initial state, a driving shaft of the upward ejection driving part is connected with the profiling stripping block, the driving shaft is of a V-shaped bending structure, and the upward ejection driving part drives the profiling stripping block to move upwards and ejects the U-shaped workpiece in the direction deviated from a male die of an upper die mechanism during die opening. Compared with the prior art, the structure can be used for effectively solving the problem that an ejection block damages the skirt edges during auxiliary stripping, so that the product yield is improved.

The invention relates to a valve, in particular to an antibiotic stop valve which is used in medicinal biochemistry field and takes antibiotic as medium. The invention provides the following technical scheme: an antibiotic stop valve comprises a valve body, a valve cap, a valve clack and a valve rod linked with the valve clack; wherein the valve cap is internally provided with a valve rod moving space which is vertically arranged to the connecting passage on the valve body, the valve clack comprises a coupling end and a sealed end, the coupling end thereof is extended into the moving space on the valve cap and is connected with the valve, the sealed end is arranged in the connecting passage and is arranged toward a sealing socket, a sealing assembly which forms sealing between the moving space and the connecting passage is arranged between the moving space of the valve cap and the connecting passage of the valve body, the sealing assembly is arranged between the coupling end and the sealed end of the valve clack, and the sealing assembly comprises a plurality of seal rings. By adopting the technical scheme, an antibiotic stop valve with easy assembly, simple structure, sterile source and low cost is provided.

The invention discloses a dual-purpose opener a lengthened arm of force. A hook-shaped opening head is arranged at the front end of an iron cap opener body, a rivet at the other end of the iron cap opener body axially penetrates through a bend-nose-shaped locking sheet, a guiding slideway is fixedly connected in the groove of the iron cap opener body by rivets, a sliding body with a tooth-shaped upper end is arranged in the groove of the guiding slideway, a protrusion is arranged at the position vertical to one end of the sliding body, and the upper end of the protrusion is connected with a spiral rotary cone by the rivet. When in use, the hook-shaped opening head at the front end of the iron cap opener body opens the iron cap, the spiral cone opens a soft plug, the sliding body slides back and forth to lengthen the arm of the force when different caps are opened, thereby the invention is convenient and labor-saving to use.

The invention relates to a lock body of a handle lock. The lock body of the handle lock comprises a lock case, an inclined tongue assembly and a first toggle block, wherein the inclined tongue assembly comprises an inclined tongue, an inclined tongue shaft connected with the inclined tongue, a limiting sliding block and a spring, the limiting sliding block and the spring are arranged on the inclined tongue shaft in a sleeved mode, and the first toggle block drives the inclined tongue to slide along the inclined tongue shaft in the axial direction. The lock body of the handle lock is characterized in that a handle button and a second inclined tongue toggle block are arranged on the lock case, the second inclined tongue toggle block is connected with the lock case in a hinged mode, one end of the second inclined tongue toggle block is connected with the limiting sliding block in a linkage mode, and the other end of the second inclined tongue toggle block is connected with the handle button in a linkage mode. The lock body of the handle lock has the advantages that the button is pressed downwards to unlock the inclined tongue lock, the structure is simple, the design is reasonable, and using is convenient.