10 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 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 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 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 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.