34results about How to "Deadlock implementation" patented technology

The invention discloses an anti-falling device of a screw and nut type building scaffold. The device comprises a screw, a nut, an anti-falling frame and a spring. The nut is arranged in the anti-falling frame, the upper portion of the nut is provided with the spring, the screw penetrates through the anti-falling frame, the nut and the spring, the upper end face of the nut is provided with a tooth-shaped groove, and the inner surface of an upper plate of the anti-falling frame is provided with a tooth-shaped boss. By means of the nut and the screw with a large lead angle, the nut can ascend and descend automatically when the anti-falling frame ascends and descends at a proper speed, and the nut is prevented from being locked. When ascending speed exceeds the largest ascending speed of the nut, the nut will limit ascending of the scaffold. When descending speed reaches a set safety value of the nut, the nut compresses the spring, the tooth-shaped groove in the upper end face of the nut is matched with the tooth-shaped boss on the inner wall of the upper plate of the anti-falling frame, and accordingly the anti-falling frame is locked and the scaffold is prevented from falling. The anti-falling device is easy and convenient to operate, simple in structure and worthy of application and popularization.

The invention relates to a turnover-type dining table for a medical nursing bed. The dining table is arranged on a bed frame of the medical nursing bed and comprises a first movement mechanism, a second movement mechanism, a linkage mechanism arranged between the first movement mechanism and the second movement mechanism, a motor driving mechanism in driving connection with the first movement mechanism and a turnover-type table body arranged on the first movement mechanism and the second movement mechanism, wherein the first movement mechanism and the second movement mechanism are oppositely arranged on the inner side of the bed frame, and a locking mechanism is arranged on the turnover-type table body. Compared with the prior art, two surfaces of a table board can be used, functions of the dining table are expanded, locking of the table board at any angle can be achieved and is stable and reliable, the turnover-type table body can be automatically moved, the nursing efficiency is improved, and the burden of nursing workers is reduced.

The invention discloses a control rod driving mechanism with a safety protection function. The control rod driving mechanism comprises a rod position detector assembly, a pressure-resistant shell assembly, a claw assembly, a driving rod assembly, a coil assembly and a safety anti-expansion device. A safety protection device comprises a tipping magnetic pole, a tipping locking coil, a tipping spring, a tipping armature, a tipping claw and a transition supporting sleeve. A sealing shell is fixed to the transition supporting sleeve through the tipping magnetic pole, and the transition supportingsleeve is connected with the claw assembly in an assembled mode. The tipping armature is arranged on the transition support sleeve in a sliding manner; one end of the tipping spring elastically abutsagainst the tipping armature, and the other end of the tipping spring elastically abuts against the tipping magnetic pole or the transition supporting sleeve. The tipping claw is arranged on the transition supporting sleeve and is linked with the tipping armature; the driving rod assembly is arranged on the transition supporting sleeve and the tipping magnetic pole in a penetrating manner; the tipping locking coil is installed on the coil assembly, and the tipping armature is in linkage with the tipping claw in the axial sliding process to do pivot swing motion of being engaged with or disengaged from the driving rod assembly. Therefore, the safety function of tipping and locking is achieved, and safe shutdown of the reactor is achieved.

The invention discloses a multifunctional portable drawing board. The multifunctional portable drawing board mainly comprises a multifunctional drawing ruler plate part and an angle adjusting part, wherein one part of a bending support rod rack is connected with the multifunctional drawing ruler plate part by virtue of a desktop with a rail; the other part of the bending support rod rack is connected with the angle adjusting part by virtue of parallel sliding blocks; due to the limit of the bending support rod rack, the multifunctional drawing ruler plate part and the angle adjusting part are capable of relatively rotating in a certain angle range by connection of a hinge. The stepless variation of different angles can be obtained in different positions of the sliding blocks in a sliding rail; a mechanism needs to be locked during working; the sliding blocks are locked by using a conical surface clamping manner; meanwhile, one clamping slot is formed in a drawing panel of the multifunctional portable drawing board; a drawing ruler is matched with the clamping slot and is capable of horizontally or vertically moving; the other clamping slot is also formed in the drawing ruler and is matched with sliding insertion blocks; the sliding insertion blocks are capable of linearly moving on the drawing rules; the production of drawings is greatly facilitated.

The invention provides a rotary clamping mechanism. The rotary clamping mechanism comprises a rotary controllable stop dog (100) and a rotator (200); the rotary controllable stop dog (100) is providedwith a rotator containing hole (101); the rotator (200) is inserted into the rotator containing hole (101); and the rotary controllable stop dog (100) can lock or release the rotator (200) in the circumferential rotary direction of the rotator (200). The rotary controllable stop dog (100) is used for containing and controlling the rotator (200) to be locked or released in the first circumferential direction and the second circumferential direction, especially, flexible bidirectional or unidirectional rotary control can be achieved through cooperation of a first channel groove (102) and a second channel groove (103) like movement contact bodies of spheres.

The invention provides an electric locking mechanism of a shock absorption device for a medical bed. The electric locking mechanism comprises a shock absorption outer cylinder, an oil return pipeline,an oil return check valve, an oil return solenoid valve, an oil discharge pipeline, an oil discharge check valve, an oil discharge solenoid valve, a piston, a piston rod, a baffle plate, a cushioningspring, and a sealing ring, wherein the piston is arranged in the shock absorption outer cylinder and is used for dividing the interior of the shock absorption outer cylinder into a first cavity anda second cavity; the two ends of the oil return pipeline are respectively in communication with the first cavity and the second cavity; the oil return check valve and the oil return solenoid valve areconnected to the oil return pipeline in series; the two ends of the oil discharge pipeline are respectively in communication with the first cavity and the second cavity; the oil discharge check valveand the oil discharge solenoid valve are connected to the oil discharge pipeline in series; the piston is connected to the piston rod; and the cushioning spring is arranged on the piston rod in a sleeving manner. The electric locking mechanism solves the problems of complicated operation and insufficient stability of the locking mechanism of the shock absorption device in the prior art.

The invention discloses an automatic docking mechanism for gas water heating device detection equipment, which belongs to the field of gas water heating devices, and comprises a docking male seat matched with a docking female seat, a base, more than two automatic locking mechanisms fixed on the base and positioned on the side surface of the docking male seat, and a male seat driving cylinder, the butt joint male seat is fixed on the base, the automatic locking mechanism comprises a resettable horizontal sinker bar, a power transmission mechanism and a rotary spring bolt, the resettable horizontal sinker bar is connected with the power output end of the power transmission mechanism, and the power output end of the power transmission mechanism is connected with the rotary spring bolt. According to the automatic locking docking mechanism disclosed by the invention, the docking female seat is creatively close to the docking male seat to convert the docking male seat into power for automatic locking, so that the problem that a plurality of air cylinders are required to cooperate in the prior art is avoided.

The invention discloses a 400MPa grade disc screw steel, a preparation method and a preparation device, and relates to the technical field of metallurgy. The invention includes a ladle, a connecting ring and an n-shaped plate. The ring is connected with the external hoisting structure, the bottom of the n-shaped plate is connected with a rotating structure for the rotation of the ladle, and the rotating structure includes a first rotating rod, a first ring gear, an n-shaped plate, a driving motor, a support plate, a Two rotating rods, a second ring gear, a rotating shaft, a rotating shaft and a fixing bolt, the first rotating rod and the second rotating rod are connected with a connection structure for the active connection of the ladle, and the outer end of the first rotating rod is connected There is a locking structure for locking the first rotating rod, and the locking structure includes a rotating circular plate, a sliding rod, a fixed plate, a second spring, a fixed ring, a push ring, a concave plate, a movable block, a connecting rod, The movable tooth block and the fixed tooth block are convenient for the loading and unloading of the ladle, and it is convenient to replace the ladle in actual use.

The invention belongs to the technical field of construction and in particular relates to a metro rail paving method. A detachable locking bolt adopted by the method comprises a first screw cap, a first screw and a first nut. The first screw and the first screw cap are coaxially and fixedly mounted on the bottom surface of the first screw cap, and the first screw cap is arranged on an outer layerof the first screw in a sleeving mode; a first through hole penetrating to the bottom surface of the first screw cap is formed in the bottom surface, far away from the first screw cap, of the first screw; a second through hole penetrating to the first through hole is formed in the upper surface of the first screw cap; a locking part is fixedly mounted on the upper surface of the first screw cap; and the other end of a steel wire rope penetrates a mounting plate, the first through hole and the second through hole and is connected to the locking part. By arranging a friction block and an elasticpart to extrude the first nut, the bolt is locked. By arranging the first screw to drive the steel wire to move in the vertical direction, the bolt is convenient to detach, and the using efficiency of the metro rail paving method is improved.

The invention discloses a multifunctional portable drawing board. The multifunctional portable drawing board mainly comprises a multifunctional drawing ruler plate part and an angle adjusting part, wherein one part of a bending support rod rack is connected with the multifunctional drawing ruler plate part by virtue of a desktop with a rail; the other part of the bending support rod rack is connected with the angle adjusting part by virtue of parallel sliding blocks; due to the limit of the bending support rod rack, the multifunctional drawing ruler plate part and the angle adjusting part are capable of relatively rotating in a certain angle range by connection of a hinge. The stepless variation of different angles can be obtained in different positions of the sliding blocks in a sliding rail; a mechanism needs to be locked during working; the sliding blocks are locked by using a conical surface clamping manner; meanwhile, one clamping slot is formed in a drawing panel of the multifunctional portable drawing board; a drawing ruler is matched with the clamping slot and is capable of horizontally or vertically moving; the other clamping slot is also formed in the drawing ruler and is matched with sliding insertion blocks; the sliding insertion blocks are capable of linearly moving on the drawing rules; the production of drawings is greatly facilitated.

The present invention discloses a rise mechanism of a communication cable bracing piece. The mechanism comprises a support column, a fixed mechanism is fixedly installed at the bottom portion of the support column, a height regulation mechanism is installed at the internal portion of the support column, and a fine tuning mechanism is installed at the upper end of the height regulation mechanism; and a drive mechanism is installed at the upper portion of the support column, the drive mechanism is in transmission connection with the height regulation mechanism, and a dead lock mechanism is installed at the bottom portion of the drive mechanism. A drive gear drives a transmission gear to rotate, and the transmission gear is in engagement transmission with a height regulation rack so that a height regulation rod is driven to lift and the height regulation of the device is achieved, and a connection rod is driven to achieve threaded connection with an external rod so as to perform height regulation at the ground; a fine tuning spring is employed to allow a fine tuning rod to float up and down and can perform fine tuning with the change of the relaxation degree change of a cable so as toavoid damaging of the cable; and a lock dead spring is employed to drive a dead lock pin to rise through a lifting plate so as to achieve dead lock of the drive gear, avoid automatic declination of the height of the device and improve the safety performance.

The invention discloses a folding electric tricycle which comprises an underpan of the tricycle, a main beam, a main beam bracket and a foldable four-bar support. The main beam support is fixed on the underpan of the tricycle, and the main beam and the main beam support are connected through a rotating shaft; the main beam support is provided with stepped holes used for locating and locking an opening of the main beam, and the main support is provided with a through hole matched with the stepped holes; the main beam support is further provided with a clamping jaw used for locking the bottom end of the main beam; the foldable four-bar support comprises four support bars and a saddle supporting plate which form a four-bar structure which can swing in the front-back direction of the tricycle; the saddle supporting plate is provided with two saddle seats which are parallel to each other and are arranged in the front-back direction of the tricycle, and the distance between the saddle seats is larger than the maximum diameter of the main beam, so that the main beam can be downwards placed between the saddle seats when the main beam is folded.

A steel wire rope locking device comprises a shell, an eccentric block, a top block, a sealing cover and a steel wire rope. The eccentric block and the top block are arranged in the shell. An eccentric groove is formed in the eccentric body. The top block is arranged in the eccentric groove. The sealing cover is connected with the shell. The steel wire rope is connected with the sealing cover. Thetop block comprises a locking end and a top block body. The top block body extends to the locking end to form an eccentric shaft insertion hole. The locking end is provided with a top block groove and an antiskid protrusion. In the locking state of the steel wire rope locking device, the steel wire rope penetrates through the top block groove of the locking end and is pressed into the top block groove of the top block, the antiskid protrusion of the locking end clamps the steel wire rope, and therefore the top block locks the steel wire rope, wherein an NdFeB magnet is arranged in the top block groove of the top block.