9results about How to "Realize fixed limit" patented technology

The utility model discloses a motor shaft rust cleaning equipment for motor, it includes the U type mounting seat, the top of one side of U type mounting seat is installed motor, the output of motor is equipped with the rotating rod no. 2 that extends to the inside of U type mounting seat. Through rotating rod no. 2 and motor can realize the rotation of motor shaft, and cooperate bevel gear no. 2, bevel gear no. 1, rotating rod no. 1, rotating rod no. 1, the structure design of tooth block and connecting rod, still can drive sliding block, internal thread sleeve, threaded rod and arc rust cleaning plate move in the inside of sliding slot, to realize the compression of spring, and through the movement of arc rust cleaning plate and then cooperate the rotation of motor shaft, can realize the polishing rust cleaning work at different positions of motor shaft outside, and through the structure design of this part, need not operator hand -held polisher, effectively reduced the labor intensity of later period worker, increased the convenience and practicality of this equipment later period use.

This utility model discloses an auxiliary tool for replacing walking boards, including a base, a mounting seat fixedly installed on the top of the base, a rotating seat rotatably connected inside the mounting seat, a connecting sleeve rotatably connected to the rotating seat via a slewing bearing, a drive arm disposed inside the connecting sleeve, a sliding part of the drive arm slidably connected to the inner wall of the connecting sleeve, a mounting arm fixedly connected to the bottom end of the drive arm, and a lifting fork fixedly installed at both ends of the bottom of the mounting arm. Using casters installed on the bottom of the base and the base plate, the device can be easily moved to the location of the walking board to be replaced, so that the lifting fork is positioned directly above the gap between the walking boards. The lifting fork is inserted into the gap between the walking boards by the drive arm. Since the connecting sleeve and the rotating seat are rotatably connected via the slewing bearing, the lifting fork is swung left and right by the drive arm to insert it deeper into the gap between the walking boards. The lifting fork is then rotated upwards by the drive arm to lift the walking board to be replaced, thus removing the installed walking board.

The utility model belongs to the sintering field, concretely relates to a kind of bearing plate assembly, including bearing plate and support assembly, support assembly includes stand, positioning pin and clamping piece;Bearing plate is provided with one or more, when bearing plate is provided one, bearing plate is set in the top of stand, and stand is used to support bearing plate assembly in placement position;When bearing plate is provided multiple, adjacent two bearing plates are spaced apart by stand Parallel arrangement, the lowermost bearing plate is provided with stand below;Bearing plate is provided with through-hole on the board face, positioning pin is embedded on the through-hole, clamping piece is embedded with positioning pin and stand simultaneously, for limiting positioning pin on stand. The setting of positioning pin and clamping piece, can be conveniently and quickly the stable fixation of bearing plate to stand, and the fixed limit of stand above and below bearing plate can be realized, improve the overall support effect.

The utility model relates to the technical field of instruments and meters, and discloses a water level detection rod accurate measuring device which comprises a shell, the rear side of the shell is fixedly connected with two protective covers, the rear sides of the two protective covers are both slidably connected with first moving rods, the front sides of the first moving rods are rotatably connected with a fixing plate, and the fixing plate is fixedly connected with the shell. The device comprises a fixed plate, movable plates are fixedly connected to the upper side and the lower side of the fixed plate, first springs are fixedly connected to the front sides of the two movable plates, second fixed plates are fixedly connected to the front sides of the two movable plates, transverse plates are fixedly connected to the close sides of the two second fixed plates, and two limiting shafts are fixedly connected to the rear sides of the two transverse plates. And moving rods II are slidably connected to the far sides of the two protective covers. According to the traction rope fixing device, the first moving rod moves, the first fixing plate drives the moving plate to move, the fixing plate drives the transverse plate to move, the limiting shaft breaks away from control over the second moving rod, and fixing and limiting of the traction rope are achieved.

This utility model relates to the field of wheat pest control technology, specifically a winter wheat pest control device, including a base, a rotating platform, an arc-shaped toothed plate, an angle adjustment component, a support sleeve, a lifting rod, a lifting component, a housing, an pest control component, and two grounding components. The base has four rectangular casters at its bottom. The rotating platform is rotatably mounted on the top of the base. The arc-shaped toothed plate is mounted on the outer wall of the rotating platform. The angle adjustment component is mounted on the top of the base. The support sleeve is vertically mounted on the top of the rotating platform. The lifting rod is slidably mounted inside the support sleeve. The lifting component is mounted on the top outer wall of the support sleeve. The housing is mounted on the top of the lifting rod. The two grounding components are symmetrically arranged on the base. This utility model's pest control component can automatically switch the yellow sticky trap, eliminating the need for manual replacement and making pest control convenient.

The utility model discloses bed board processing and cutting equipment which comprises a bottom plate, two first sliding grooves and two second sliding grooves are formed in the upper surface of the bottom plate, a fixing frame is fixedly connected to the upper surface of the bottom plate, and a first hydraulic telescopic rod is fixedly connected to the inner wall of each first sliding groove; the telescopic end of each first hydraulic telescopic rod is fixedly connected with a sliding plate, the upper surface of each sliding plate is fixedly connected with a supporting block, the right side faces of the two supporting blocks are jointly and fixedly connected with a sliding frame, and the inner wall of the fixing frame is in threaded connection with a rotating threaded rod. Through mutual cooperation of the second hydraulic telescopic rod, the third hydraulic telescopic rod, the sliding block, the sliding guide rail frame, the electric sliding block and the laser cutting head, the two faces of the bed board body can be cut at the same time, and the situation that the other face of the bed board cannot be cut can be effectively avoided; the bed board needs to be turned over manually, so that the processing efficiency of the bed board is reduced.

The utility model relates to the technical field of hole flanging dies, in particular to a flow guide ring hole flanging die with a pressing structure, which comprises a lower bottom plate, a striker plate is mounted at the upper end of the lower bottom plate, a central column is arranged on one side of the striker plate, a supporting plate is mounted at the upper end of the central column, a lower die is mounted at the upper end of the supporting plate, and the pressing structure is arranged on the lower die. An upper molded surface block is arranged at the upper end of the lower die, a punch is arranged at the upper end of the upper molded surface block, a transition plate is connected to the upper end of the punch, an upper bottom plate is installed at the upper end of the transition plate, a Misi guide column set is installed at the bottom of the upper bottom plate, and a Misi rectangular spring is arranged on one side of the Misi guide column set. According to the device, the Misi rectangular spring and the punch are additionally arranged, when the device conducts downward pressing and hole flanging, the Misi rectangular spring can drive the upper molded surface block to conduct downward pressing in advance, the punch is made to position a part, and the part is prevented from shaking and shifting during hole flanging.

The utility model discloses a lining structure which comprises a paper box, a supporting plate is fixedly arranged at the bottom of the paper box, a paper lining assembly is placed in the paper box, a sealing cover covers the paper lining assembly, the upper surface of the sealing cover is flush with the upper surface of the paper box, and a plurality of vehicle logo frames which are distributed at equal intervals are placed in the paper lining assembly. The paper lining assembly is arranged in the carton, the vehicle logo frames can be arranged one by one, the distance between the vehicle logo frames is guaranteed, the stability of placement of the vehicle logo frames can be guaranteed, people can conveniently place the vehicle logo frames in the carton, and better packaging and transportation of the vehicle logo frames are achieved.

The present application discloses a coal machine airborne curtain secondary negative pressure dust falling device, which belongs to the technical field of coal mining and comprises a bottom plate, a fixing seat fixedly connected to the outer wall of the bottom plate, an installation hole formed in the surface of the fixing seat, a first supporting plate fixedly connected to one side of the upper surface of the bottom plate, a supporting rod rotatably connected to the inner side of the bottom plate close to the first supporting plate, a spray pipe fixedly connected to the end of the supporting rod away from the first supporting plate, a nozzle fixedly sleeved with the top of the spray pipe, a second supporting plate fixedly connected to the upper surface of the bottom plate away from the first supporting plate, and a water inlet pipe rotatably connected to the inside of the second supporting plate. The coal machine airborne curtain secondary negative pressure dust falling device can solve the problem that the dust concentration in the ambient air is still high during production, the coal dust generated in the production process cannot be effectively controlled, the coal dust is flammable and explosive and has occupational hazards, and the on-site operators are seriously threatened.