31results about How to "Achieve tripping" patented technology

An overvoltage and undervoltage tripper of a small-sized breaker solves the problem of complicated structure of an existing tripper and comprises a casing. The casing is provided with a control circuit board and a tripping driver inside. The tripping driver comprises a coil former, a movable iron core, a fixed iron core and an ejector rod, a rotation part is sleeved inside the casing, the ejector rod corresponds to the rotation part, the rotation part is provided with a connecting shaft, the connecting shaft penetrating through an arc groove on the casing to be connected with a lock catch of the breaker, the casing is provided with a guide mechanism, and the guide mechanism is matched with the rotation part. The overvoltage and undervoltage tripper of the small-sized breaker has the advantages that the motion manner of rotation of the single rotation part is created, tripping of the breaker is realized, transmission mechanism of an original tripper is simplified, size of the tripper can be reduced indirectly, assembling difficulty is reduced, and labor is saved. Furthermore, the lock catch can move in a unique and accurate track by the aid of the guide mechanism arranged on the casing.

The invention discloses a novel integrated combined electrical appliance. The novel integrated combined electrical appliance comprises a three-station disconnecting switch, a vacuum breaker or a load switch or a load switch-fuse combined electrical appliance which is matched with the three-station disconnecting switch, and an operating mechanism, wherein the three-station disconnecting switch is arranged on the upper side of the integrated combined electrical appliance and distributed in the sequence of front, middle and back; other electrical elements are embedded into epoxy embedded poles and arranged below the disconnecting switch; the epoxy embedded poles are spliced together to form a partition plate so as to separate a bus room from a switching cable room; in addition, the upper outgoing lines of the other electrical elements form the disconnecting link rotating pivots of the three-station disconnecting switch; the operating mechanism is a novel difunctional spring operating mechanism and is arranged at the front end of the integrated combined electrical appliance; a torsional spring energy storage mechanism at the upper end of the operating mechanism drives the rotating shafts of the three-station disconnecting switch to act so as to open and close; and a spring winding energy storage mechanism at the lower end of the operating mechanism drives the other electrical elements to operate. Current sensor installing rooms and line slots are reserved at the lower ends of the epoxy embedded poles, so that the novel integrated combined electrical appliance has a compact structure and is safe in use, room and fault sources are reduced, and cost is lowered.

The invention discloses a password doorlock with a lateral button. A central shaft is rotatably mounted in a lock case in a peripheral direction, at least two password wheels are rotatably arranged onthe central shaft in a sleeving manner in a peripheral direction, a first buckle structure is arranged on the surface of the periphery of each password wheel, a stop is slidably positioned in the lock case, a plurality of second buckle structures which can be connected with the first buckle structures in a fastened manner are arranged on the stop, an unlocking knob is rotatably mounted on the front surface of the outer side of the lock case and is coaxially connected with a stop thumbwheel, the stop thumbwheel can drive the stop to slide in a reciprocating manner to unlock or lock, at least two keys with different marks which can be mounted on a side surface of the outer side of the lock case in a way of axially sliding by a set distance, and each key can drive the corresponding passwordwheel to rotate intermittently in one way at a set angle to release the corresponding first buckle from the corresponding second buckle. Invisibility of the keys of the password doorlock is greatly improved, the password doorlock is not easy to damage even if the password doorlock is used for a long time, and furthermore, the password doorlock is difficult to unlock technically, and is high in safety.

The invention relates to a silent lock which comprises a lock body and a lock catch plate. The lock body comprises a lock box, a spring bolt assembly, a toggle block and a handle. The handle is connected with the toggle block and can drive the toggle block to rotate, the toggle block is in linkage with the spring bolt assembly for driving the spring bolt assembly to stretch and retract, the lock catch plate is provided with a cavity for limiting a spring bolt, the lock body is further provided with a clamping block, and the clamping block can be rotationally fixed in the lock box. The silent lock has an unlocked state and a locked state. In the unlocked state, the front end of the spring bolt is located in the lock box, and the clamping block is clamped to the toggle block. In the locked state, the front end of the spring bolt protrudes out of the lock box, the clamping block is disengaged from the toggle block, and the clamping block is used for switching the locked state and the unlocked state of the silent lock. The spring bolt can be automatically sprung out while being locked, automatic locking is achieved, safety is improved, and silent locking and unlocking are achieved.

The invention discloses a circuit breaker. The circuit breaker comprises a housing body, a heat conducting block, a dialing rod, double metal sheets and a mechanical tripping device. The housing bodycomprises a first side and a second side. A composite terminal connected with a circuit is arranged on the first side. The heat conducting block is arranged on the first side of the housing body and connected with the composite terminal. The dialing rod is rotatably arranged on the second side of the housing body. Each double metal sheet comprises a positioning end and a free end. The positioningends are connected to the heat conducting block. The free ends pass through the housing body and extend to the dialing rod. The mechanical tripping device is installed on the second side of the housing body. The heat conducting block is capable of conducting heat of the composite terminal to the double metal sheets. When the current of the circuit is overloaded, heat is increased so that the double metal sheets are bent to drive the dialing rod to rotate, and when the dialing rod rotates to a triggering angle, the mechanical tripping device is triggered to move. According to the invention, thedouble metal sheets are bent after being heated to drive the dialing rod to rotate, thereby achieving tripping of the circuit breaker. Compared with the current electronic type circuit breaker, the structure is simple, the components are fewer, the cost is quite low and different requirements can be met.

The invention relates to the field of textile technology. The purpose is to provide a two-for-one twister with long service life and automatic braking of broken wires, including a winding device, a wire breaking detection device, a yarn collector and a twisting device arranged on the frame from top to bottom; After successively passing through the twisting device, the yarn collector, and the broken wire detection device, it is wound on the winding device; the twisting device includes a twisting mechanism and a driving mechanism for driving the action of the twisting mechanism; the driving mechanism includes a The second transmission rod on one side of the first transmission rod is installed on the frame through the second bearing; the lower end of the second transmission rod is connected to the rotating shaft of the twisting motor through a magnetic clutch transmission assembly. The invention can quickly disconnect the power connection between the driving mechanism and the twisting mechanism, reduces the load on the driving mechanism during braking, lays the foundation for the emergency stop of the twisting mechanism, and greatly prolongs the operating time of the driving mechanism. service life.

The invention relates to a release for a miniature circuit breaker. The release comprises a movable iron core, a static iron core, an ejector rod, an iron core sleeve, an electric leakage coil and a current coil, wherein the electric leakage coil is wound outside the iron core sleeve, the current coil is wound outside the electric leakage coil, the number of turns of the electric leakage coil is larger than that of the current coil, and the electric leakage coil and the current coil are wound outside the iron core sleeve at the same time. The functions of short-circuit protection and leakage protection can be realized through using one release, the size of the miniature circuit breaker caused by the number of the release is effectively reduced, and the purpose of miniaturization of the size of the miniature leakage circuit breaker is realized.

The invention relates to the field of transmission technology. The purpose is to provide a double-row sprocket with overload protection for high torque transmission, including a driving sprocket, a driven sprocket and a chain, the chain is composed of several chain links, and the chain is wound on the driving sprocket on the gear teeth of the sprocket and the driven sprocket; the driving sprocket and the driven sprocket both include two wheel bodies arranged side by side, the number of the chains is two, and the two chains are arranged side by side, and correspondingly wind around It is set on the gear teeth of the two groups of opposite wheels of the driving sprocket and the driven sprocket; the two chains are provided with an overload buffer zone, which is opposite to a chain link of the chain, and the chain corresponding to the overload buffer zone A section consists of an anterior segment and a posterior segment that are independent of each other. The invention can protect the chain from overload and prevent the chain from breaking and being damaged when the torque is too large.

The invention relates to an automobile electric door lock and belongs to the field of automobile engineering. According to a topology variable structure provided transmission mechanism for an automobile electric door lock, based on an interval composite piece with a return spring, a single motor drives an insurance relieving branched chain and an opening branched chain of a novel transmission mechanism according to an expected timing sequence; a topology structure of the mechanism can be changed through a cam mechanism angle of repose and a limiting position of the interval composite piece, and the movement time sequence and the movement shutdown ratio of the mechanism are determined; and the limiting position is determined through a limiting position check block, and determined movement of the opening branched chain is achieved. A lower gear of a dual gear in the mechanism drives an insurance branched chain, a lower gear of the insurance branched chain and an engaged insurance gear, the insurance gear drives insurance shifting teeth, the shifting teeth drive an insurance rotary table to rotate, the insurance rotary table pulls an insurance push rod, and an insurance relieving function is achieved. In the insurance relieving process, a driven member cam sliding crank of an interval composite piece cam mechanism is in a shutdown state. An upper gear of the dual gear drives the opening branched chain, and an electric unlocking function is achieved.

The invention relates to a flip type Bluetooth earphone charging box which comprises a box body, a left box cover, a right box cover and a sliding buckle structure. The left part of the top surface of the box body is provided with a left accommodating groove and the right part is provided with a right accommodating groove; the left box cover is assembled on the box body in a turnable manner, the right box cover is assembled on the box body in a turnable manner, the left box cover is provided with a left upper buckle, and the right box cover is provided with a right upper buckle; the sliding type buckle structure comprises a fixed support and a movable support, the movable support and the fixed support are assembled in a sliding mode in the front-back direction through a limiting structure, the elastic assembly is assembled to the movable support, and the left portion of the movable support is provided with a left lower buckle and the right portion is provided with a right lower buckle. The left lower buckle is used for being buckled with the left upper buckle through the left opening hole so that the left containing groove can be covered with the left box cover, the right lower buckle is used for being buckled with the right upper buckle through the right opening hole so that the right containing groove can be covered with the right box cover, and the movable support is provided with a sliding pushing part which penetrates through the sliding hole and is exposed out of the middle of the box body. Compared with the prior art, the sliding cover opening structure is more reliable.

The invention provides a lock catch system and a breaker operating mechanism. The lock catch system comprises a main connecting lever and an electromagnet, wherein at least one stage of latch structure is arranged between the main connecting lever and the electromagnet; the electromagnet comprises a static iron core and a movable iron core; a coil is wound on the static iron core; the movable iron core is connected with a reset spring; the movable iron core can rotate relatively to the static iron core and comprises an adsorption part which is attracted by the static iron core when the coil is electrified, so that the movable iron core reversely rotates towards the static iron core; and the movable iron core is also provided with a locking part, which positively rotates along with the movable iron core under the action of elastic force of the reset spring when the coil is powered off, and is in stop coordination with the latch structure. The lock catch system provided by the invention is simple in structure, convenient to use and relatively high in reliability.

The invention relates to the technical field of curtains, and aims to provide a light curtain. The light curtain comprises a mounting rod and a light curtain body arranged below the mounting rod, wherein the mounting rod is a hollow rod; a lead screw which extends in the length direction of the mounting rod is arranged in the center of the inside of the mounting rod; one end of the lead screw is in transmission connection with a driving motor; the other end of the lead screw is in running fit with the mounting rod; a strip-shaped opening which extends in the length direction of the mounting rod is formed in the bottom of the mounting rod; a plurality of moving blocks are arranged in the mounting rod; each moving block comprises an inner ring and an outer ring; each inner ring sleeves the outside of the lead screw and is in threaded fit with the lead screw; each outer ring sleeves the outside of the corresponding inner ring; and a pressure limiting assembly is arranged between each inner ring and the corresponding outer ring. The light curtain is simple and reliable in structure; and the light curtain body can be folded and unfolded quickly.

The invention discloses a clutch device of an electric tool. The clutch device comprises a reduction box and a middle cover covering the front side of the reduction box, wherein a small shaft passes through the front wall of the reduction box; a first bearing is arranged between the small shaft and the middle cover; a second bearing is arranged between the small shaft and the front wall of the reduction box; a disc spring, a separation and reunion gear and a separation and reunion block are sleeved in sequence between the second bearing and the first bearing on the small shaft; the separation and reunion block is fixed together with the small shaft; the separation and reunion gear is pressed onto the separation and reunion block through the disc spring; meshed separation and reunion teeth are arranged between the separation and reunion gear and the separation and reunion block; the separation and reunion gear is meshed with a gear of an armature arranged on the middle cover. The structural safety and reliability of the clutch device are enhanced.

The invention discloses a drilling anchoring pre-supporting system based on shield operation and a construction method, and aims to provide the drilling anchoring pre-supporting system and the construction method based on the drilling anchoring pre-supporting system. The system comprises an MF quick-change drill rod, a drill shank and an anchor rod; the anchor rod (1) is composed of a drill bit (1-1) connected with an anchoring pipe, a pipe shoe (1-6) connected with the anchoring pipe through a pipe opening lock catch connector and a PVC pipe (1-7) connected with the pipe shoe; and the pipe opening lock catch connector is composed of a lock catch female connector (1-4) connected with the anchoring pipe and a lock catch male connector (1-5) connected with the MF quick-change drill rod (4), and a spiral through groove (1-4-1) of the lock catch female connector (1-4) is matched with a spiral cam groove (1-5-1) of the lock catch male connector (1-5). According to the system, the cutting boundary (7) of the tunnel face (6) is determined firstly, the system is obliquely chiseled into the rock mass (5), the MF quick-change drill rod (4) is withdrawn from the PVC pipe (1-7), and the tunnel face (6) is cut after grouting solidification.

An overvoltage and undervoltage tripper of a small-sized breaker solves the problem of complicated structure of an existing tripper and comprises a casing. The casing is provided with a control circuit board and a tripping driver inside. The tripping driver comprises a coil former, a movable iron core, a fixed iron core and an ejector rod, a rotation part is sleeved inside the casing, the ejector rod corresponds to the rotation part, the rotation part is provided with a connecting shaft, the connecting shaft penetrating through an arc groove on the casing to be connected with a lock catch of the breaker, the casing is provided with a guide mechanism, and the guide mechanism is matched with the rotation part. The overvoltage and undervoltage tripper of the small-sized breaker has the advantages that the motion manner of rotation of the single rotation part is created, tripping of the breaker is realized, transmission mechanism of an original tripper is simplified, size of the tripper can be reduced indirectly, assembling difficulty is reduced, and labor is saved. Furthermore, the lock catch can move in a unique and accurate track by the aid of the guide mechanism arranged on the casing.