4results about How to "Reliable working environment" patented technology

This utility model belongs to the field of elevator maintenance technology, specifically relating to an elevator maintenance rack bracket. This bracket, through the cooperation of a support frame, a crossbar, and a base plate, allows the bracket to be directly pushed into the elevator shaft after the landing door is opened, enabling quick locking and improving elevator maintenance efficiency. Simultaneously, the crossbar's placement against the walls on both sides of the elevator shaft landing door ensures a more stable overall fixation of the bracket, providing a reliable and stable working environment for maintenance personnel. Turning the handle allows the lead screw to drive the support plate back and forth via threaded transmission, better matching the wall thickness and improving the bracket's applicability. The combination of wheels and a handle allows a single person to easily push the bracket to the target floor elevator entrance, reducing the labor intensity of maintenance personnel when moving the elevator and improving its ease of use.

The utility model discloses a top-air-out type air conditioner outdoor unit which comprises a machine shell, an outdoor air outlet and an outdoor air inlet are formed in the top and the side portion of the machine shell respectively. The electric control box is connected with the machine shell, a containing cavity is formed in the electric control box, and the electric control box comprises a supporting plate connected to the machine shell; the box body is arranged in the accommodating cavity and is provided with an opening; the electric control board is installed on the box body and provided with a first through hole, the heating module is installed on the electric control board through a supporting frame and penetrates through the open hole, and the heating module or the box body or the supporting frame is provided with a second through hole; the refrigerant heat dissipation component is connected to the supporting plate and abuts against the heating module, and a first mounting hole is formed in the refrigerant heat dissipation component; the first positioning part is arranged on the supporting plate; and the second positioning part is arranged on the box body. According to the invention, the first positioning part is adaptively connected with the second positioning part, so that the first via hole and the second via hole are aligned with the first mounting hole, manual alignment is not needed when the first fastener is used for connection and fixation, and the assembly efficiency is improved.

The utility model discloses an elevator shaft self-overturning type operation platform relates to building construction auxiliary equipment technical field, solves the platform installation stability of prior art is insufficient, sets up the hidden danger of safety is bigger, and the installation and the inconvenient problem of use in the field. The utility model discloses two parallel corresponding setting right triangle frame, two right triangle frame are connected through connecting rod between, be provided with the limit rod on the right triangle frame, and the lower end of right triangle frame is all hinged with support rod, and support rod cooperates with limit rod, and limit rod can limit the rotation angle of support rod, be provided with telescopic push rod for and elevator shaft inner wall cooperation on the right triangle frame. Through the support rod lap joint on the floor, form the stable support base to whole operation platform, through telescopic push rod and elevator well wall cooperation, provide powerful lateral support force, ensure that platform and well wall closely adhere to, effectively prevent the shaking and displacement, provide stable work environment for construction personnel.

The utility model provides a roller cone box assembling auxiliary device which comprises a square overturning frame formed by welding 100 mm channel steel and a supporting frame composed of two triangular supports and a cross beam, and bases of the triangular supports are fixed to a working face through foundation bolts. Fan-shaped rotating plates are symmetrically arranged below the two sides of the square overturning frame and synchronously rotate with a cone box rotating shaft through shaft holes, and the other end of the rotating shaft is connected to a bearing seat at the top of a triangular support through a spherical roller bearing. The driving mechanism is composed of a worm and gear assembly and a hand wheel, a worm gear is fixed to the extending end of the rotating shaft, and a worm mounting base is provided with a radial adjusting bolt to optimize the meshing clearance. According to the additional function design, 15-degree indexing locking holes in the edge of the fan-shaped rotating plate are matched with spring buckles for positioning; and an anti-skid rubber pad and a hand wheel anti-skid texture sleeve on the inner side of the overturning frame improve the operation stability. The device integrates rotation, transmission and positioning functions through a modular structure, and meets the precise rotation control requirement of the heavy cone box.