6results about How to "Meet different job needs" patented technology

The invention relates to the technical field of railway vehicles, and discloses an automatic opening and closing mechanism for a railway vehicle and a control method thereof.The automatic opening and closing mechanism comprises a locking mechanism, a supporting frame, an upper supporting mechanism and a cabin door assembly; a left cabin door and a right cabin door of the cabin door assembly are connected to a supporting frame of the railway vehicle through upper supporting mechanisms and further connected with locking mechanisms symmetrically arranged on the supporting frame, and the locking mechanisms are used for locking the left cabin door and the right cabin door when the left cabin door and the right cabin door are opened and closed. By means of the opening and closing mechanism which is opened left and right, the cabin door can be opened or closed according to the actual running situation of the railway vehicle, the two working states of opening or closing of the cabin door are provided, and different working requirements of normal running or reconnection running of the railway vehicle are met; airflow impact force generated when a railway vehicle runs at a high speed acts on the rocker arm through the cabin doors, the sliding block can press the sliding block backstop more tightly, automatic locking of the mechanism is achieved, and it can be guaranteed that the left cabin door and the right cabin door are locked consistently.

The utility model discloses a building planning positioning identification device which comprises a concentric-square-shaped moving plate, a stable moving structure is installed at the bottom end of the concentric-square-shaped moving plate, and a positioning identification structure is installed on the concentric-square-shaped moving plate. The utility model relates to the technical field of building planning, and by changing the matching of two pairs of vertical telescopic limiting shaft tubes and vertical telescopic convex shaft rods, the system can adjust the horizontal angle of a concentric-square-shaped moving plate so as to adapt to different working requirements; through the synergistic effect of the lifting support driving machine and the lifting threaded pipe, the levelness of the concentric-square-shaped moving plate can be adjusted, so that the moving plate can be kept accurate and stable on different road surfaces; the design of the horizontal gear box and the horizontal driving shaft ensures the stability and efficiency of power transmission; and by using multiple pairs of vertical telescopic limiting shaft tubes and lifting sleeve springs, the system can be kept stable in the lifting process, and shaking is avoided.

The application discloses a steam pipeline cutting machine with a positioning function, and relates to the cutting technical field.The steam pipeline cutting machine with the positioning function comprises a cutting device.The steam pipeline cutting machine with the positioning function has the following advantages: the pipeline enters from one side of a conveyor, the pipeline is moved to one side of a circular saw through the conveyor, so that the automatic conveying of materials is realized, manual supporting and moving are reduced, the pipeline is in contact with a limiting mechanism in the conveying process, the shaking space of the pipeline is reduced, excessive shaking in the conveying process is avoided, the subsequent cutting effect is prevented from being affected, the pipeline is clamped through a positioning device, so that the pipeline is fixed, the cutting quality is improved, shaking in the cutting process is avoided, a servo motor controls a screw rod to ascend and descend in a machine body, so that the height of the circular saw is controlled, and the circular saw is easy to produce chippings and gas in the cutting process; the chippings are cleaned and collected through a processing device, and the safety hidden danger is reduced.

The utility model relates to the technical field of ball screw, concretely is a kind of two-way thread double-station ball screw, including workbench, sliding element, installation element, first screw assembly and second screw assembly;Sliding element is set at the both sides of workbench, first screw assembly and second screw assembly are oppositely set on workbench to drive the relative motion of sliding element;The both ends of installation element are erected in workbench, the installation element is used to first screw assembly and second screw assembly installation, so that first screw assembly and second screw assembly carry out unified transmission on the workbench;By setting sliding element at the both sides of workbench, the relative motion of first screw assembly and second screw assembly is provided with stable support and smooth sliding condition, by oppositely arranged first screw assembly and second screw assembly, the synchronous or asynchronous motion of double-station can be realized, increase flexibility and functionality, satisfy different work needs, or carry out different operation to different workpieces, improve work efficiency, and it is strong practicality.

The present invention discloses a bridge pile foundation reinforcement device for bridge construction, which relates to the field of bridge construction, including a frame, a second fixed block fixedly connected to the side wall of the frame, a connecting structure installed on one side of the frame, and a movable mechanism installed on one side of the connecting structure. The present invention provides preliminary positioning through a limit frame to ensure the stability of the initial docking, and the rocker drives the active bevel gear to drive the driven bevel gear to rotate synchronously, so as to promote the precise movement of the screw rod and the moving block. During the movement, the swing frame rotates around the center frame, driving the limit ring and the moving rod to linearly approach the second fixed block. As the threaded rod gradually approaches and docks with the threaded hole of the second fixed block, the moving rod realizes synchronous movement and rotation, ensuring that the threaded connection is fast and accurate. Finally, the two threaded rods are firmly docked to ensure the firmness and stability of the structure, and the operation is simple, and the assembly can be completed quickly and conveniently.

This invention discloses a variable-focus infrared lens suitable for a wide temperature field, comprising: an infrared lens base, an infrared dichroic filter assembly, a front infrared lens assembly, a rear infrared lens assembly, an infrared zoom lens assembly, and an infrared filter switching assembly; wherein the infrared dichroic filter assembly, the front infrared lens assembly, the rear infrared lens assembly, the infrared zoom lens assembly, and the infrared filter switching assembly are all fixed to the upper surface of the infrared lens base; the optical axes of the front infrared lens assembly, the rear infrared lens assembly, the infrared zoom lens assembly, and the infrared filter switching assembly are all aligned. This invention effectively improves the environmental adaptability and target acquisition capability of laser optical systems.