41results about How to "Good for moving up and down" patented technology

The invention discloses a gate for a water conservancy project. The gate for the water conservancy project comprises an embedded groove and a gate device, wherein the gate device is connected with the embedded groove in a matched mode, a gate plate is connected with the embedded groove in a matched mode, and arc-shaped elastic pieces are arranged on the two corresponding sides of the surface of the gate plate and located at the edge positions; one ends of connecting rotating rods are rotatably connected to the inner part of the gate plate, sliding guide rods are slidably connected to the inner part of the gate plate, the ends of the connecting rotating rods are fixedly connected with the surfaces of the sliding guide rods, and one ends of the sliding guide rods are hinged to the arc-shaped elastic pieces; scraping devices are hinged to the ends, away from the arc-shaped elastic pieces, of the sliding guide rods and located on the surface of the gate plate. According to the gate for the water conservancy project, the purpose of self-cleaning is achieved, and sundries can be cleaned in time and prevented from being clamped in gaps, so that the gate can move up and down smoothly, meanwhile, the abrasion loss is reduced, the service life is prolonged, safety and reliability are achieved, and the use performance is improved.

The invention discloses an electro-hydraulic dual-control energy storage type fracturing completion switch, which comprises an upper joint, a central pipe, a pressure transmission outer cylinder, a sliding sleeve outer cylinder, an outer sheath, and a lower joint connected sequentially from top to bottom. An energy storage device is arranged on the central tube, a sliding sleeve system is installed inside the outer sleeve of the sliding sleeve, a hydraulic transmission system is installed inside the outer sleeve of the sliding sleeve and the outer sheath, and the central tube, the outer pressure transmission cylinder, and the outer sleeve of the sliding sleeve are Connected pressure transmission holes are provided, and the energy storage device, the sliding sleeve system and the hydraulic transmission system are connected through the pressure transmission holes. A control drive system is also arranged between the lower half of the outer cylinder of the sliding sleeve and the outer sheath. The invention solves the problems of segmental fracturing of the conventional ball-pitching sliding sleeve, which has limited stratified stages due to the existence of the ball seat, which affects the production of oil wells, and does not have the problems of later-stage controlled exploitation and selective exploitation.

The invention discloses an anti-error operation mechanism of a low-voltage fixed type switchgear. The anti-error operation mechanism comprises a lock catch which is provided with a through hole and is fixed at the inner side of the door plate of the switchgear; a dead bolt sleeve which is provided with a through hole and is fixed below the lock catch, wherein the through hole of the dead bolt sleeve and the through hole of the lock catch are disposed at the same straight line; a dead bolt whose upper portion is embedded into the through hole of the dead bolt sleeve and is also embedded into the through hole of the lock catch at the same time when an isolation switch is at a switching-on state, wherein the widths of the through holes of the lock catch and the dead bolt sleeve are greater than the width of the upper portion of the dead bolt; and a cam which has a circular upper portion and an elliptical lower portion when the isolation switch is at a switching-on state, wherein the outer edge of an ellipse is provided with a guide rail, the lower portion is fixedly connected with the rotating shaft of the isolation switch, the upper portion of the cam and a pin at the lower portion of the dead bolt are connected through the guide rail, and the connected pin at the lower portion of the dead bolt is parallel to the rotating shaft of the isolation switch. The mechanism provided by the invention can ensure that the door of the switchgear is open only when the isolation switch is switched off, and the safety and convenience are high.

The invention provides an enterprise financial management risk identification device, which includes a sealed box body, a storage bin, a sealed box door, a multi-stage locking frame structure, an intelligent risk opening frame structure, a transparent support plate, a lifting monitoring frame structure, and a support plate. Bolt mounting plate, tension spring, pressure plate, rechargeable lithium battery, charging socket, external power cord and locking hole, the storage compartment is set on the inner upper part of the sealed box body; the sealed box door hinge is connected to Seal the front left side of the case. The beneficial effects of the present invention are: through the setting of the limit sliding column and the L-shaped limit lever, it is beneficial to limit the position of the limit slide column through the lower left part of the L-shaped limit lever, preventing the device from locking When tightening, the electromagnet is energized due to external signal interference, ensuring that the upper part of the metal plunger is always inserted into the inner side of the locking hole when the device is locked, and the device is double locked.

The invention belongs to the technical field of guardrails, and specifically relates to a lifting and folding building construction guardrail, including upright columns, connecting columns, support seats, shielding cloth, casters, worm wheels, worms, screw rods, sliding rods, connecting blocks, and guide columns , the scissors mechanism, the connecting rod and the No. 1 telescopic shaft; the present invention drives the scissors mechanism and the No. 1 telescopic shaft to expand by pulling the handle on the column, and realizes the lateral expansion of the guardrail. By rotating the worm, the worm drives the worm wheel to rotate , the worm wheel drives the screw to rotate, the screw drives the sliding rod to slide in the sinking groove, the sliding rod drives the No. 1 telescopic shaft to move upward, and the No. 1 telescopic rod drives the covering cloth to move, realizing the adjustment of the vertical height of the guardrail , to separate the construction area from the outside world, thereby avoiding the dust and gravel generated in the construction area from causing harm to pedestrians and vehicles outside the guardrail, and at the same time meeting the needs for guardrails of different heights and increasing the protection The scope of use of the column.

The invention discloses a multipurpose traditional martial art fitness push pile, which particularly relates to the technical field of fitness push piles. The multipurpose traditional martial art fitness push pile comprises a base, the upper side face of the base is fixedly connected with a pile body, the top of the pile body is sleeved with a protective cap, reinforcing rods are arranged between the base and the protective cap, the reinforcing rods are located on the left side and the right side of the pile body respectively, and the reinforcing rods are slidably sleeved with sliding blocks; the sliding blocks are arranged on the left side and the right side of the pile body correspondingly, push rods are fixedly connected to the outer side faces of the sliding blocks, a rope winding wheel is rotationally connected into the pile body, a connecting rope is wound around the rope winding wheel and located on the inner side face of the telescopic rod, the lower end of the connecting rope is connected with the balancing weight, and the telescopic rod is slidably connected to the movable rod. The push rod can move up and down and horizontally, the position of the push rod can be adjusted, the push pile can be conveniently used by people with different heights, the application range is expanded, the movable rod and the telescopic rod can be contracted and unfolded, and the space utilization rate is increased.

The invention relates to the design field of borehole radar, in particular to a butterfly-shaped directional antenna for borehole radar. Including metal butterfly antenna with arc-shaped end, dielectric material shell, arc-shaped reflector, end-loaded resistor and capacitor, coaxial feeder, air via hole, etc. The shell of the dielectric material is cylindrical, and the butterfly antenna piece is buried in its physical center, and the end is loaded with series resistors and capacitors to connect with the curved reflector; the curved reflector is set on the side surface of the dielectric material shell to conform to it; the air is through the hole Through the two end faces of the dielectric material shell, it is used as a cable passage; the coaxial feeder is connected to the feeder port of the metal butterfly antenna piece through the air hole. The antenna of the invention has small overall size, adapts to the shape of the borehole, has wide working frequency band, can match with the signal source, and has good waveform fidelity and directivity.