11results about "Switch lubrication" patented technology

A limit switch includes: a switch main body; and an operation unit connected to the switch main body. The operation unit includes: a housing; a shaft member; and an urging portion. The urging portion includes: an elastic member; a return plunger; and a guide member having higher heat resistance than the housing. The elastic member is stretchable along a center line extending in the second direction and configured to bias the shaft member. The return plunger is positioned between the elastic member and the shaft member in the second direction, movable along the center line, and configured to transmit a biasing force of the elastic member to the shaft member. The guide member is attached to the housing, and configured to accommodate the return plunger inside the guide member and to guide movement of the return plunger.

The invention discloses a modularized vacuum circuit breaker which comprises an operation box, a base and a plurality of vacuum arc-extinguishing chambers, the base is connected to the rear of the operation box, and the vacuum arc-extinguishing chambers are mounted on the base in a linear manner; a connecting rod mechanism in the base comprises L-shaped lever frames, one L-shaped lever frame is hinged right below each vacuum arc-extinguishing chamber, all the L-shaped lever frames are linked through a synchronous frame, and the L-shaped lever frame close to the operation box is connected with an operation mechanism in the operation box; comprising a lubricating mechanism, the lubricating mechanism comprises a sealed oil storage cavity located at the bottom of a base and a manual booster pump, the tail end of a pump body and the tail end of a piston rod of the manual booster pump are hinged to the base and a synchronous frame respectively, and the synchronous frame reciprocates to drive the piston rod to stretch out and draw back synchronously. According to the invention, the lubricating mechanism is added, and the lubricating mechanism is not provided with electronic parts, is not influenced by high ionization and high static environment, can lubricate the connecting rod mechanism for a long time, and reduces the fault rate of the modular vacuum circuit breaker.

This invention belongs to the field of electrical switch technology and discloses a self-lubricating mechanism for the contacts of a frame circuit breaker. The mechanism includes a frame circuit breaker body, within which a moving contact group is fixedly installed. During rotation, the moving contact group can contact and separate from the stationary contacts, thereby controlling the on / off state of the circuit in the frame circuit breaker. A moving contact support plate is fixedly installed on the moving contact group, and a rotating shaft is fixedly installed within the moving contact group. This invention utilizes a shaft seal lubrication assembly on the outside of the rotating shaft. The rotational energy of the shaft during the opening and closing swing of the moving contact group drives a spiral blade to synchronously push grease, ensuring continuous and uniform penetration of the grease into the hinged joint surface between the rotating shaft and the moving contact support plate. This achieves automatic and long-term lubrication of the shaft hinge, effectively solving the problems of high rotational resistance, mechanism jamming, and accelerated wear caused by long-term dry friction of the rotating shaft in existing technologies. It significantly reduces the frictional loss during the swing of the moving contact group, ensuring smooth and stable opening and closing operation of the moving contact group.

The utility model relates to the technical field of vacuum circuit breakers, in particular to a transmission assembly of an outdoor vacuum circuit breaker, which comprises a frame and a connecting rod, a rotating shaft is rotatably connected in the frame, a plurality of crank arms are fixedly connected on the outer wall of the rotating shaft, and one end of each crank arm is rotatably connected with an insulating pull rod through a shaft rod. According to the utility model, each movable roller is arranged, so that the rotation of the rotating shaft is smoother and more stable, a worker can conveniently lubricate the rotating shaft, the working efficiency is improved, and the working efficiency is improved. And the telescopic push rod is arranged to be matched with the limiting block and the like, so that the stability of the closing head clamped at the upper end of the insulator can be improved, and the situation that the closing head is loosened and the closing operation is influenced is avoided.

The invention relates to the technical field of circuit breaker clutch mechanisms, and discloses a clutch mechanism for a circuit breaker electric operating mechanism, which comprises a bottom plate, a shell is fixedly connected to the top of the bottom plate, a circuit assembly is fixedly connected to the rear end surface of the shell, a driving chamber is arranged in the shell, and two storage chambers are arranged. The control assemblies are symmetrically and fixedly connected to the two sides of the inner wall of the top side of the shell respectively, the control assemblies are fixedly connected to the interior of the shell, a gate is rotationally connected to the middle of each control assembly, the gates are electrically connected with the circuit assemblies, and lock catches are fixedly connected to the interiors of the control assemblies; and the two rotating rods are rotationally connected to the inner wall of one side of the support, a rotating driving assembly is fixedly connected to the inner wall of the other side of the support, the rotating driving assembly is specifically a driving motor, and the device has the advantages that the maintenance effect of the device is improved, and the device is convenient to use by a user.

A mechanism for an electrical device, including a plurality of metal parts which are not arranged for conducting an electrical current of which a first part includes a first contact surface and a second part includes a second contact surface arranged to move in relation to, and in contact with, the first contact surface. At least one of the first and second parts includes a Graphene and Related Materials (GRM) at its contact surface, in a metal-GRM composite.

The utility model relates to a novel ignition switch which comprises a shell, a lock body, a lock cylinder, a lock cylinder linkage sleeve, a gear seat, a lifting pin seat and an electric seat, the lock body is fixedly connected to the upper side of the shell, the lock cylinder is arranged in the lock body in a matched mode, the lower end of the lock cylinder is connected with the lock cylinder linkage sleeve, and the gear seat is arranged on the lower side of the lock cylinder linkage sleeve in a matched mode. The lifting pin seat is rotatably arranged on the lower side of the gear seat, the electrical seat is fixed on the lower side of the lifting pin seat, a plurality of connecting terminals are arranged on the electrical seat, a plurality of guide connecting pieces used for abutting against the contact pieces of the different connecting terminals are further arranged on the electrical seat, and the guide connecting pieces are located on the lower sides of the contact pieces. The electrical base is provided with a spring used for abutting against the guide connecting piece upwards on the lower side of the guide connecting piece, the upper end of the guide connecting piece is fixedly connected with a lifting pin, the lifting pin penetrates out of the electrical base and is in up-down sliding fit with a lifting pin base, the upper end of the lifting pin penetrates out of the lifting pin base and abuts against the gear base, and a plurality of lifting pin grooves are formed in the lower end face of the gear base. The device is compact in structure, small in size and stable and reliable to use.

The present disclosure relates to a mechanism comprising a plurality of components, a first of which comprises a first contact surface and a second of which comprises a second contact surface arranged to contact and move relative to the first contact surface. The first contact surface is provided by a multilayer coating (4) directly on a surface (5) of a metal substrate of the first component. The multilayer coating comprises a base layer arrangement (43) arranged directly on the surface of the substrate, a composite layer (41) arranged on top of the base layer arrangement, and a metal top layer (42) arranged directly on top of the composite layer, the composite layer being comprised of particles (7) of graphene and related materials, GRM materials, in a metal matrix (8).

The utility model relates to an anti-clamping stagnation rib groove cooperation button switch, comprising a housing and a circuit board fixed in the inner cavity of the housing, the top of the circuit board is electrically connected with a microswitch, the inner cavity of the housing is slidably connected with a slide block used for pressing the microswitch, the top of the slide block is fixedly connected with a button, and the button is fixedly connected with a button. The utility model relates to the technical field of key switches. According to the anti-clamping rib and groove matched key switch, the V-shaped groove is additionally formed in the sliding block, the matching area of the sliding block and the shell rib is reduced, so that friction force is reduced, the hand feeling of the switch is improved, meanwhile, tiny foreign matter falls into the V-shaped groove and is adsorbed into grease, and the clamping risk is reduced; grease can be stored in the V-shaped groove, the long-term switch lubrication effect is achieved, and the service life of the switch is prolonged; the V-shaped groove is additionally arranged on the sliding block, a long straight surface is changed into a small section, the size change is extremely small due to the influence of an injection molding process and weather, the clamping stagnation risk is reduced, meanwhile, the contact surface is reduced, the deformation points of the groove are also greatly reduced, and the clamping stagnation risk of the button caused by the size change is reduced.

An object is to achieve an improved service life of a cover. A switch (100) includes a case (8) that includes an opening (80), a cover (91) that covers the opening (80), the cover being made of an elastomer and being formed to bulge outward of the case (8), a push rod (11) that projects from inside of the case (8) to proceed into the cover (91) from the opening (80), the push rod movably disposed to proceed into the cover (91) from the opening (80) and to retreat toward the opening (80) from inside of the cover (91), a biasing portion (2) that biases the push rod (11) in a direction of proceeding into the cover (91) from the opening (80), a fixing contact piece (5) disposed in the case (8), a movable contact piece (4) that moves with the push rod (11) to contact and separate from the fixing contact piece (5), and a slide contact member (6) disposed on an inner surface of the cover (8), the slide contact member contacting a tip end of the push rod (11).