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53results about How to "Improve labor saving" patented technology

Mechanical-locking-based wire traction variable stiffness mechanism

The invention discloses a mechanical-locking-based wire traction variable stiffness mechanism. The mechanism comprises a continuum robot basic structure, variable stiffness locking mechanisms and a variable stiffness traction mechanism. The continuum robot basic structure is composed of connection disks, a central wire and four driving wires distributed circumferentially. The connection disks include the middle connection disks and the tail end connection disk. The tail end connection disk is fixed to the tail end of the central wire and the tail ends of the driving wires through a wedge-shaped locking mouth. The middle connection disks are fixed to the central wire through wedge-shaped locking mouths. Each variable stiffness locking mechanism is a single-degree-of-freedom mechanism composed of sliding bevel wheels, springs, incomplete gears, connecting rods and inlaid metal sheets with each middle connection disk as a rack. The variable stiffness traction mechanism is composed of wire guide sheaths, a tensile metal wire and metal wire lock pieces. The wire guide sheaths and the central wire are concentric. The tensile metal wire penetrates through the wire guide sheaths and the wedge-shaped locking mouths of the central wire and is fixed to the sliding bevel gears through the metal wire lock pieces. The mechanical-locking-based wire traction variable stiffness mechanism is fast in rigid and flexible state switching and high in positioning rigidity.
Owner:TIANJIN UNIV

Replacement structure of ratchet wrench

A replacement structure of a ratchet wrench comprises a wrench rod, wherein at least one of the two ends of the wrench rod is provided with a head part; the head part is provided with a hollow pulley groove the bottom edge of which is provided with a butting edge; the head part is provided with a fork groove at the periphery of the pulley groove adjacent to the wrench rod; the head part is provided with a containing groove at the inner wall surface of the fork groove and the top surface of the head part is locked with a cover plate; a registration wheel is arranged on the butting edge of the pulley groove of the head part, the outer edge of the registration wheel is provided with a plurality of ratchets, and a position adjacent to the top edge, on the outer edge of the registration wheel is provided with a spacing ring groove; a brake pad is arranged in the fork groove of the head part and is provided with the plurality of the ratchets for braking the registration wheel in an engaged mode; the middle section adjacent to the top edge, of the brake pad is provided with a limit bump corresponding to the spacing ring groove; the top surface of the brake pad utilizes a connecting rod to fix zipper pulls which are attached to and abutted against the top surface of the cover plate to move; and the brake pad is provided with a fixed seat in the containing groove of the head part. The structure in the invention can enhance labor-saving performance and stationarity of the movement of the brake pad, enables the replacement of the registration wheel to be more smooth and convenient, enhances the structure strength, prolongs the service life and prevents component loss.
Owner:巨琩有限公司

Overflow dam with flood discharge function for water conservancy project

The invention belongs to the technical field of water conservancy projects, and particularly relates to an overflow dam with a flood discharge function for a water conservancy project. When the overflow dam is used and the upstream water level is full during the flood peak period, water blocked by the overflow dam can be completely released only by slowly lifting an inserting plate, when the inserting plate is lifted, the water flow at the bottom impacts on a first rotating wheel, at the moment, a rope winding wheel starts to wind a rope, then a lifting force is provided for the inserting plate, and the problem that the inserting plate is lifted in a more labor-saving mode is solved. According to the scheme, the overflow dam comprises a dam body, wherein the dam body is of a prism-shaped structure with a cavity; a notch is reserved in the middle of the dam body; T-shaped sliding grooves are formed in the opposite sides of the notch; and the same inserting plate with a flat cuboid structure with a cavity is connected between the two T-shaped sliding grooves in a sliding mode. The overflow dam is novel in structure, good in drainage smoothness performance and good in silt dischargingeffect, the high water level can be reduced in time, and the flood discharge capacity and speed are improved.
Owner:宁夏瑞力建设工程有限公司

Bidirectional screw rod device and care sickbed lifting device

The invention provides a bidirectional screw rod device and a care sickbed lifting device, and belongs to the field of transmission devices. The bidirectional screw device comprises a screw rod body, a left-handed assembly and a right-handed assembly, wherein a left-handed thread and a right-handed thread are arranged at the two ends of the screw rod body respectively; nut fixing baffle blocks are arranged on the screw rod body; the left-handed assembly comprises a left-handed nut and a limiting slide block; the right-handed assembly comprises a right-handed nut and a limiting slide block. The bidirectional screw rod device is quite steady to use, free of noise, good in using effect and long in service life. The care sickbed lifting device comprises a bedstead and a base, wherein two lifting connecting rod assemblies are symmetrically arranged on the two sides of the base; the upper end of each lifting connecting rod assembly is hinged to the bedstead, the lower end of each lifting connecting rod assembly is hinged to the base, and the bidirectional screw device is arranged between the two lifting connecting rod assemblies. During the use, the care sickbed lifting device does not generate noise in the lifting process, so that rest of a patient is not affected, a good rehabilitating environment can be provided for the patient and the patient can heal faster.
Owner:SICHUAN YU FENG MEDICAL APP

Replacement structure of ratchet wrench

A replacement structure of a ratchet wrench comprises a wrench rod, wherein at least one of the two ends of the wrench rod is provided with a head part; the head part is provided with a hollow pulley groove the bottom edge of which is provided with a butting edge; the head part is provided with a fork groove at the periphery of the pulley groove adjacent to the wrench rod; the head part is provided with a containing groove at the inner wall surface of the fork groove and the top surface of the head part is locked with a cover plate; a registration wheel is arranged on the butting edge of the pulley groove of the head part, the outer edge of the registration wheel is provided with a plurality of ratchets, and a position adjacent to the top edge, on the outer edge of the registration wheel is provided with a spacing ring groove; a brake pad is arranged in the fork groove of the head part and is provided with the plurality of the ratchets for braking the registration wheel in an engaged mode; the middle section adjacent to the top edge, of the brake pad is provided with a limit bump corresponding to the spacing ring groove; the top surface of the brake pad utilizes a connecting rod to fix zipper pulls which are attached to and abutted against the top surface of the cover plate to move; and the brake pad is provided with a fixed seat in the containing groove of the head part. The structure in the invention can enhance labor-saving performance and stationarity of the movement of the brake pad, enables the replacement of the registration wheel to be more smooth and convenient, enhances the structure strength, prolongs the service life and prevents component loss.
Owner:巨琩有限公司

Front drive reciprocating type stepless labor-saving bicycle

InactiveCN103523146AReduced pedaling cycle timeGood for riding speedChain/belt transmissionRider propulsionFreewheelDrive wheel
The invention discloses a front drive reciprocating type stepless labor-saving bicycle which comprises existing components. A shaft sleeve is welded at the front end of a frame and is close to the rear of the front end of the frame, a flywheel is fixed to one ends of bearings via an axial bar, and a chain wheel and another flywheel are fixed to the other ends of the bearings; a bearing pulley is connected to the outer periphery of a front fork barrel in a sleeved manner; a left lever and a right lever of pedals are connected onto the frame and the lower ends of the two flywheels; a chain comprising steel wire ropes is arranged in the middle sections of the flywheels, is wound around the bearing pulley to be meshed with two rear ends of the two flywheels and is connected with rear positions of the front ends of the two levers; a reducing driving wheel is arranged at the right end of the axis of the frame, and a pinion of the reducing driving wheel is connected the chain wheel by a chain, and a gear wheel of the reducing driving wheel is connected with a rear-circle flywheel by another chain. The front drive reciprocating type stepless labor-saving bicycle has the advantages that the stepping cycle can be shortened, riding acceleration can be facilitated, circulation disappearance of a moment arm lever effect can be prevented, power consumption can be halved, a moment arm is triple a resistance arm, a large quantity of power can be saved, and the pedals can slide along the levers, so that the speed can be steplessly changed, and a labor saving effect is better than a labor saving effect of a speed-variable bicycle; the requirement on riding power can be met by the gravity of the two legs of a rider, so that the rider does not feel tired, the front drive reciprocating type stepless labor-saving bicycle is applicable to long journal and favorable for jam decrease, emission reduction, energy conservation and low-carbon life, and great economical and social benefits can be realized.
Owner:张俊岭

Precision electrical appliance control cabinet

InactiveCN107148181AAvoid more difficult problems when hanging on the wallEasy to installCasings/cabinets/drawers detailsElectrostatic chargesPolyethylene glycolEngineering
The invention discloses a precision electrical appliance control cabinet. The precision electrical appliance control cabinet comprises a main cabinet body panel, an installation fixing piece and a protruding platform, wherein the installation fixing piece is connected with the main cabinet body panel by an installation fixing connection rod, the protruding platform is arranged at a right middle position of a front surface of the main cabinet body panel, and the main cabinet body panel comprises a reinforcement core board, a shaping plate, a corrosion-prevention plate and an anti-static layer, the reinforcement core board is arranged at the innermost layer of the main cabinet body panel, the corrosion-prevention layer is arranged outside the anti-static layer in an extruded manner, a layer of anti-static thin film is arranged on an outer surface of the anti-static layer in an extruded manner, and the anti-static thin film comprises the following raw materials: 18-22 parts of silica powder, 3-5 parts of titanium dioxide, 1-4 parts of curing agent, 2-5 parts of polyethylene glycol and 4-5 parts of ammonium ethoxy alkyl ammonium sulfate. The precision electrical appliance control cabinet has the advantages of labor saving, higher safety and the like, and is more convenient to install, and the problem that an existing control cabinet is relatively difficult to hang on a wall is prevented.
Owner:滁州市朝友精密制造有限公司

Novel multifunctional garden scissors

InactiveCN108040653AAvoid damageNo need to squeezeSecateursCuttersTool bitEngineering
The invention discloses novel multifunctional garden scissors. The scissors include a first tool holder, a second tool holder, a hinge shaft, a first tool bit, a second tool bit, a mounting groove, aradio, a storage battery, a covering plate, a rubber sleeve, multiple reflective strips, a concave blade and jags; the first tool holder is hinged to the second tool holder through the hinge shaft, the first tool bit is integrally arranged at the upper end of the first tool holder, a second tool bit is integrally arranged at the upper end of the second tool holder, and the mounting groove is formed in the side portion of the first tool holder; the mounting groove is internally provided with the radio and the storage battery, the storage battery is electrically connected with the radio, the covering plate is hinged to the opening of the mounting groove through a hinge, the rubber sleeve slidingly sleeves the first tool holder, and the annular reflective strips are arranged at the exteriorsof all the first tool holder and the second tool holder. Compared with the prior art, the garden scissors have the advantages that thick branches can be sawed off conveniently, the radio can be organically combined with the garden scissors, the labor-saving performance and the practicability of the garden scissors are improved, the structure is simple, and the garden scissors are convenient to use.
Owner:XINCHANG SHENGXIA MACHINERY PLANT
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