18 results about "Self locking" patented technology

The invention relates to a simple and reliable touch control switch. The simple and reliable touch control switch consists of a 12-V direct-current power supply, a one-way silicon controlled rectifier 1 (SCR1) trigger circuit, a one-way silicon controlled rectifier 2 (SCR2) trigger circuit, a relay control circuit and a load RL circuit. A conventional mechanical self-locking rocker switch or a toggle switch has the defects that actions are mechanical, operating actions are different because of persons, a contact is easy to jitter, a contact is easy to ablate, abrade and the like. The touch control switch is realized by only using a small number of common components and two touch metal pieces, namely an on-load circuit is switched on by touching a touch electrode once, and an off-load circuit is switched off by touching the touch electrode once. The overall touch control switch is made of discrete components, and strong electricity can be effectively isolated from weak electricity through a relay, so that the power supply of a load can use alternating current and also can use direct current. Therefore, the touch control switch has a certain function in the field of household appliances, industrial automation, and optical, mechanical and electrical integration.

The utility model discloses a simple structure's net mouth safety lock, it includes locking into the self locking plug of net mouth and the key of unlocking the self locking plug from net mouth, the self locking plug includes plug shell main part, the inside of plug shell main part is provided with the hollow cavity, the one side top of plug shell main part is connected with the elastic member of extending to the inside of hollow cavity and positioning to the net mouth inner wall, the side wall of other side is provided with the lock hole, the bottom of elastic member is provided with the buckle part, the first through -hole is provided with above the buckle part to elastic member, the key includes the key handle of one end and the key handle of other end, the key head includes the insertion part and sets up the unlocking part at the insertion part end bottom, the height of lock hole is greater than the height of insertion part. The utility model structure is simple, and the part number is few, and production technology is simple, and production cost is low, and unlocking action is simple, and the operation is light and smooth.

The invention relates to a two-column elevator with a self-locking transmission system. The two-column elevator comprises a first supporting column, a vehicle carrying plate, an inclined plate and a second supporting column. The first supporting column is connected with the rear end of the vehicle carrying plate, the vehicle carrying plate is hinged to the left end of the inclined plate, and the second supporting column is arranged at the front end of the vehicle carrying plate. According to the two-column elevator with the self-locking transmission system, when the motor breaks down or is in emergency power failure, due to the fact that the lead angle of the worm is small (generally smaller than the equivalent friction angle), the self-locking performance is achieved, only the worm can drive the worm gear, reverse rotation is prevented, first-weight self-locking is formed, meanwhile, the rotation speed sensor cannot detect rotation of the worm, and the worm can be driven to rotate. When the worm rotates, the electric push rod does contraction motion to drive the ejector rod to move towards the right end, so that the clamping blocks on the multiple clamping block structures are folded and close to each other, the right end of the worm is clamped and locked, rotation of the worm is prevented, double self-locking and double protection are formed, a vehicle carrying plate is prevented from falling, and the use safety of the elevator is improved.

The invention relates to the technical field of bridge pier settlement dynamic monitoring devices, in particular to a bridge pier settlement dynamic monitoring device based on shield pile grinding construction, and aims to solve the problems that monitoring equipment inclines along with inclination of a bridge pier during monitoring due to the fact that the bridge pier is generally monitored through a tripod in the prior art; and finally, the bridge pier monitoring effect is reduced. A threaded rod is driven to drive a bottom plate to move along a guide rail, then supporting plates perpendicular to each other on the bottom plate are linked to drive a spherical hinge to adjust the monitoring position in the XY direction, and then a spherical core in the spherical hinge keeps the gravity center perpendicular to a balance weight rod through a balance weight block, so that a camera connected with a supporting rod is perpendicular to the ground all the time; and meanwhile, supporting structures such as a support A and a supporting rod of the supporting part ensure stability of the camera, a spring B assists in supporting when being stable and buffers when being inclined, a lantern ring drives a self-locking plate to move when being inclined at a large angle, and a fixing rod of a self-locking assembly is inserted into a rod groove to lock an angle, so that the effect of the monitoring quality of the bridge pier is improved.

The utility model relates to the technical field of alloy drill bits, and provides a self-locking type high-precision alloy drill bit which comprises a drill bit body, a positioning clamping groove is formed in the drill bit body, a limiting mechanism is installed on the outer wall of the drill bit body, and the limiting mechanism comprises a drilling machine connector installed on the outer wall of the drill bit body. A threaded groove is formed in the drilling machine connector, a threaded column is installed in the drilling machine connector, an annular protruding block is fixedly connected to the inner wall of the threaded column, and a limiting elastic piece is fixedly connected to the interior of the drilling machine connector. The drill bit main body is moved to be inserted into the drilling machine connector, the four positioning clamping grooves correspond to the four positioning clamping blocks in position, the rotating block is rotated, the threaded column rotates, the annular protruding block fixedly connected with the inner wall of the threaded column extrudes the four protruding inclined plates, and the drill bit main body is inserted into the drilling machine connector. And the four positioning clamping blocks are clamped into the four positioning clamping grooves for limiting, so that the drill bit main body and the drilling machine connector are stably mounted and connected.

The utility model discloses a modularized self-locking device for high concentricity processing of a stator, which comprises a support core part provided with two first conical surfaces, and the first conical surfaces are arranged at intervals; the two expansion pieces are arranged on the supporting core part in a sleeving mode and make contact with the first conical surfaces one to one; the two replaceable contact pieces are connected to the outer wall of the expansion piece in a one-to-one mode, move along with the expansion piece and make contact with and support the inner hole in the stator from inside to outside; the at least two locking pieces are arranged on the expansion pieces in a one-to-one penetrating manner and are connected with the supporting core part; the at least two loosening pieces are connected to the expansion pieces in a one-to-one mode, the loosening pieces and the locking pieces are arranged at intervals, and when the loosening pieces move on the expansion pieces, the loosening pieces abut against the supporting core part and are in linkage with the expansion pieces to move in the direction away from the middle position of the supporting core part; therefore, the technical problems that the positioning precision is relatively poor, the machining precision is relatively poor, the modularization degree is low, operation is inconvenient, and the machining efficiency is relatively low are solved.

The utility model relates to the technical field of rope lock catch, disclose a big rope lock catch with self locking mechanism, including rotating plate, rotating plate is provided with two groups, and one end of rotating plate is provided with lock catch body, and the rotating plate is provided with placing groove no.

The utility model provides a concrete curing box of adaptation different test block relates to the technical field of regenerating concrete maintenance, including the case, the inside of case includes the article placing device and support device, the inside fixed mounting of case has self locking motor, the output fixed mounting of self locking motor has gear, through setting, gear, rack, support frame, support platform, support rod, support plate and sliding ring, have realized when needing to place different size test block, need not through manual dismounting support frame to realize the method of adjusting interval, only need to start motor, realize adjustment through motor drive support rod, effectively solve the problem of low efficiency of manual adjustment, and adopt non equal interval adjustment when adjusting, can place to different article placing board according to test block size after adjusting, make space utilization maximization, and when the interval is too big too small can dismount the adjustment of article placing board, realize the adaptation of different test block.

The utility model discloses a screw rod seat processing fixed base with a self-locking structure, which comprises a base body, a hydraulic air cylinder V is fixedly arranged in the base body, a bracket is fixedly arranged at the upper end of the hydraulic air cylinder V, clamping jaws I are rotatably arranged at two ends of the bracket, and clamping jaws II are fixedly arranged at two ends of the bracket. A fourth hydraulic air cylinder is rotationally connected to the outer side of the first clamping jaw, a second clamping jaw is installed on one side of the first clamping jaw, and a third hydraulic air cylinder is connected to the top of the second clamping jaw. A first clamping jaw and a second clamping jaw are installed in the middle area of the base body, the arrangement directions of the first clamping jaw and the second clamping jaw are opposite, two sets of first clamping jaws are arranged for clamping from bottom to top, the second clamping jaw is located between the two sets of first clamping jaws, clamping is conducted from top to bottom, the clamping directions are opposite, then the lead screw body is clamped in an abutting mode, the clamping force on the lead screw is improved, and the clamping efficiency is improved. And the phenomenon that the lead screw is prone to rolling due to clamping in the same direction is avoided.

The utility model relates to mechanical support equipment field, concretely relates to a movable self locking type hydraulic support device. The self locking type hydraulic support device includes: frame, jacking platform is provided with the jacking cylinder between frame and jacking platform, is provided with the outrigger of going out frame on jacking platform, and the roller is installed at the lower end of outrigger, mechanical locking structure, including the spacing support that forms fixed connection with frame, the spacing seat that forms fixed connection with jacking platform to and the hydraulic clamp of installing on spacing support and the clamping spacing seat. The utility model relates to a movable self locking type hydraulic support device sets up mechanical locking structure and assists jacking cylinder to carry out locking, and hydraulic lifting and mechanical locking structure cooperate, and the compact structure is supported stable and reliable, is applicable to various industrial scenes needing to move and support.

The embodiment of the utility model relates to the technical field and discloses an antiskid chain locking device for a wrench switch. The cable lock catch comprises a lock catch shell provided with a center shaft and a cable outlet; the rotating teeth are arranged on the central shaft in a sleeving manner; one end of the cable is fixed on the rotating teeth, and the other end penetrates out of the cable outlet; the hasp is fixedly connected with one end of the cable self-locking buckle; the limiting mechanism is connected with the rotating teeth and is configured to control the rotating teeth to move up and down in the axis direction of the central shaft; the wrench is assembled on the surface of the lock catch shell and can rotate around a preset first axis; wherein one surface of the rotating teeth is provided with first plane ratchets, and the inner surface of the lock catch shell is provided with second plane ratchets; the wrench is linked with the limiting mechanism; when the wrench is closed, the limiting mechanism releases the rotating teeth so that the first plane ratchets can be meshed with the second plane ratchets. When the wrench is opened, the limiting mechanism drives the rotating teeth to be away from the second plane ratchets, so that the first plane ratchets are separated from the second plane ratchets.

The utility model belongs to the technical field, and particularly relates to a lifting platform suitable for a large-diameter shield tunnel reinforcing construction method main machine. Comprising a base on which a bearing platform is arranged; the lifting supporting assembly comprises a plurality of sets of hydraulic cylinders and matched guide rods, and the guide rods and the hydraulic cylinders are arranged in parallel and installed on the base; a linear bearing is slidably arranged on the guide rod, a connecting plate is arranged on the linear bearing, the connecting plate is connected with the bearing platform, and a hydraulic cylinder is connected with the bottom of the connecting plate; and the self-locking mechanism is matched with the linear bearing on the guide rod and used for locking the linear bearing, and the self-locking mechanism comprises a locking piece matched with the linear bearing. Aiming at the technical problems, the utility model provides the lifting platform suitable for the large-diameter shield tunnel reinforcement construction method main machine, which can be used for self-locking a lifting structure and effectively improving the stability of the lifting platform.

The utility model relates to the technical field of construction platforms, in particular to a safety construction platform for constructional engineering, which comprises a lifting platform of a scissor type construction platform, two groups of scissor structures, a base, moving wheels with self-locking structures and a hydraulic cylinder, the moving wheels are mounted on the periphery of the outer wall of the base, and each scissor structure consists of a plurality of scissor rods. The uppermost scissor fork rod is rotationally connected with the bottom of the lifting platform, connecting rods are rotationally installed at the output end and the tail of the hydraulic cylinder correspondingly, the two connecting rods are rotationally connected with the two scissor fork structures correspondingly, a vertical through hole is formed in the base, a ground contact piece is slidably connected into the through hole, and a spring is fixedly installed at the top of the ground contact piece. And a mounting plate is fixedly mounted at the top end of the spring, connecting shafts are fixedly mounted on the two sides of the mounting plate correspondingly, and the connecting shafts penetrate through the two lowermost shear fork rods in the adjacent shear fork structures at the same time.

The invention provides a self-locking tow hook device, and relates to the technical field of tow hooks, the self-locking tow hook device comprises a rotating assembly, a first transmission assembly, a second transmission assembly, a locking piece and a tow hook, the rotating assembly is connected with the locking piece through the first transmission assembly; the rotating assembly is connected with the tow hook through the second transmission assembly, and the tow hook is provided with a locking part. The rotating assembly can drive the locking piece to reciprocate through the first transmission assembly, the rotating assembly can drive the tow hook to rotate through the second transmission assembly, and when the tow hook rotates to the extending position or the retracting position, the locking piece can be locked with the locking part; on one hand, the locking piece is in linkage with the tow hook, the structure can be effectively simplified, the operation convenience is improved, on the other hand, self-locking can be achieved, the stability of the extending state of the tow hook is improved, and therefore the safety and reliability of the tow dragging process are guaranteed, meanwhile, stress can be optimized, the load bearing capacity of the device is improved, and the service life of parts is prolonged; and the production and use cost is reduced.

The utility model provides a workpiece moving tray, which relates to the technical field of workpiece moving trays and comprises a mounting plate, damping wheel components are arranged at four ends of the bottom of the mounting plate, a supporting plate is arranged above the mounting plate, a supporting component is arranged on one side of the mounting plate, and a protective component is arranged at the top of the mounting plate. Compared with the prior art, the protective frame has the advantages that according to the height of a workpiece, the protective frame is lifted upwards to the proper height, then bolts are installed in the threaded holes for limiting, shielding protection on the workpiece is increased, and inclination during transportation is avoided; a plurality of damping fins are installed between the supporting plate and the mounting plate and used for absorbing vibration, damping wheel assemblies are arranged at the four ends of the bottom of the mounting plate, the tops of self-locking universal wheels are installed through hydraulic dampers, and the hydraulic dampers are matched with compression springs for damping and buffering, so that the situation that the self-locking universal wheels press foreign matter and jolt on the mounting plate when the self-locking universal wheels pass through an uneven road surface is reduced; and the influence on workpiece transportation is reduced.

The utility model relates to the technical field of electric power engineering, in particular to a special tool for laying a grounding down lead of a power transmission line tower. Comprising a fixing sleeve component used for fixing a reinforcing steel bar and a stress application rotating component installed on the fixing sleeve component, and a self-locking component is arranged between the fixing sleeve component and the stress application rotating component. Through the integrated design of the fixed sleeve part and the stress application rotating part, the portability and the operation convenience of the tool are achieved, and through the cooperation of a sleeve and a rotating shaft seat in the fixed sleeve part and the operation of a stress application rod of the stress application rotating part, the practicability of the tool is achieved. And a self-locking pawl in the self-locking part is matched with a ratchet wheel, so that high safety is realized. By means of the structural cooperation, the stress application rotating component can be locked in the bending process, accidental loosening or springback caused by external force is prevented, and therefore the safety of operators is protected.

The utility model relates to the technical field of self locking device, concretely is a kind of lifting motor with self locking module, including shell, drive is arranged in the shell, mounting seat is arranged on the shell, output shaft is arranged on the drive output end, self locking assembly is arranged between the output shaft and shell, the self locking assembly includes the adsorption subassembly being arranged on the shell, magnetic block is arranged in the adsorption subassembly, fixed ring is set on the output shaft, magnetic cooperation subassembly is arranged on the fixed ring, this lifting motor with self locking module, utilize magnetic adsorption and mechanical limit double structure, long-term use still can keep stable magnetic force, mechanical limit structure is further enhanced the reliability of self locking by the cooperation of moving block and positioning hole, ensure that lifting motor keeps stable in stop state, improve the security of equipment.

The utility model relates to floor detection technical field, concretely is a floor detection device, including the bottom plate, the top left side of bottom plate all is fixedly connected with the side board, the top between two side boards is fixedly connected with the top plate, is provided with adjustable support subassembly on the bottom plate, the top middle part fixedly connected with fixed pipe of top plate, rotates and connects in fixed pipe inside rotation sleeve, inserts and set up screw rod in rotation sleeve, screw rod and rotation sleeve screw cooperation, the bottom fixed mounting of screw rod has the spoke type force sensor, the bottom fixedly connected with the mounting bracket of spoke type force sensor, the front and back end of mounting bracket all extend downward, the front and back inner wall of mounting bracket rotatably connected with the compression roller, the bottom outer wall of rotation sleeve fixedly has the worm wheel, the left side of worm wheel has the worm, and worm and worm wheel are engaged. Adopt worm wheel and worm drive mechanism drive screw rod, have the self locking characteristic, when stopping rotating the handle, the mechanism can automatically keep the current pressure, ensure the stable pressure.