41results about How to "Guarantee the reliability of use" patented technology

The invention provides a tissue clamping device for endoscope, comprising: a clamp with at least two clamp legs; a control line detachably connected to the perforation at the proximal end of the clamp; an axial sheath arranged around the control line; a sleeve detachably connected to the distal end of the axial sheath is used for accommodating the proximal end of the clamp; a retainer used to maintain the connection between the sleeve, and used to detach the axial sheath from the sleeve through the deformation of the retainer under the action of the control line; a control mechanism connectedto the proximal end of the axial sheath and the proximal end of the control line; and the control line can control at least two clamp legs of the clamp to open or close through the control mechanism.According to the invention, besides the function of rotating and multiple opening and closing, the tissue clamping device for endoscope has advantages of simplified structure, low cost in production and quality control, and the use stability and reliability of the tissue clamping device are guaranteed.

The invention discloses a single-hoisting-ring hoisting prevention device and belongs to the technical field of oil drilling equipment. The single-hoisting-ring hoisting prevention device comprises stopping blocks arranged in lower slots of hoisting lugs, and is characterized in that the stopping blocks are fixed in the lower slots through first rotating shafts and provided with sensing components for monitoring the positions of hoisting rings, and trigger blocks are arranged on the inner walls of the lower slots; and the device further comprises a single-hoisting prevention component which comprises a controller, and the controller is connected with the sensing components in a radio mode and used for receiving signals sent by the sensing components to control starting and stopping of traveling blocks. The device can accurately judge whether hoisting rings on the two sides of a lift sub enter hoisting lug holes or not and then send commands for hoisting or non-hoisting, single-hoisting-ring hoisting can be effectively prevented, and hoisting safety is improved.

The invention discloses a disengagement prevention and single suspension ring prevention lifting system, and belongs to the field of oil drilling equipment. The system comprises a disengagement prevention component, the disengagement prevention component comprises a stop block and a lock block, the stop block is in locked connection with the lock block, a sensing component is arranged on the stop block, and a trigger block is arranged on the inner wall of a lower notch; the system further comprises a single suspension prevention component and a disengagement prevention mechanism, the single suspension prevention component comprises a controller, the controller is in wireless electric connection with the sensing component, the disengagement prevention mechanism comprises a locking block and a baffle block, the locking block is in locking connection with the baffle block, the locking block comprises a latch hook portion and a stress portion, the baffle block performs pendulum motion around a rotating shaft, the baffle block swings clockwise and is locked with a latch hook portion of the locking block, the baffle block swing anticlockwise and is unlocked with the locking block, the baffle block comprises a locking portion and a disengagement prevention portion, the locking portion is located inside the upper notch of a suspension lug, and the disengagement prevention portion is located inside a lug hole of the suspension lug. A suspension ring can be firmly blocked into the lug hole, and the using stability of the whole lifting system is ensured; lifting of the single suspension ring can be avoided, and potential safety hazards are eradicated.

A fluidized bed semi-dry desulfurization system and method, comprising a pre-dust removal device connected to a desulfurization tower and a bag filter; the pre-dust removal device comprises a hollow shell, and both sides of the inner surface of the hollow shell are provided with Guide rails, the number of the guide rails is a pair, and the other pair of the guide rails are mirrored by the vertical center line of the hollow shell as a mirror image line, and the upper end and the lower end of the inner surface of the guide rail are fixedly connected A guide column is attached to the guide column, a guide plate is sleeved on the guide column, and a disc-shaped body is fixedly connected between the other pair of the guide plates. Combined with other structures or methods, the defects of the prior art that the adsorption tank body is not conducive to replacement in the pre-dust removal device, the pre-dust removal performance of the pre-dust removal device after a long period of use is not good, and the dedusting effect of the pre-dust removal device are effectively avoided.

The invention discloses a method for recording the service time of a device, and belongs to the field of automatic control. The method comprises the following steps: a, an intelligent module is mounted on the device, and when a ferromagnetic object approaches the intelligent module, a magnet in the intelligent module moves and contacts a conductor under the action of magnetic force; b, a chip in the intelligent module identifies the communication of the conductor, and starts to record the service time of the device; and c, when the ferromagnetic object moves away from the intelligent module, the magnet resets under the elastic force of a spring in the intelligent module, and is separated from the conductor, and the chip identifies the disconnection of the conductor, and ends the recordingof the service time of the device. The method can automatically and effectively monitor and record the working time of the device without regular manual recording, so the use reliability and the use safety of the device are guaranteed, and the labor intensity of maintenance personnel is reduced.

The invention discloses a method for preventing drop and hoisting of a single hanging ring. The method comprises the steps that a, a drop preventing mechanism of a system for preventing drop and hoisting of the single hanging ring is opened and made to be in an unlocking state; b, when one of the hanging rings is mounted in the position, on one side of an elevator, of a lug hole of a lifting lug, an induction part of a drop preventing part sends a signal, after receiving the signal, a controller forbids moving of a runner wagon, the runner wagon is in a stop state, and after the hanging ring enters the lug hole, the drop preventing mechanism is in a locking state, and the hanging ring is blocked in the lug hole; and c, and the other hanging ring is mounted in the position, on the other side of the elevator, inside the lug hole of the lifting lug, the induction part of the drop preventing part sends a signal, and after receiving the signal, the controller allows the runner wagon to move. It can be effectively guaranteed that the two hanging rings both enter the lug hole, so that single hanging ring hoisting is avoided. Through the joint effect of the drop preventing mechanism and the drop preventing part, the hanging rings can be blocked firmly in the lug hole, slipping is avoided, the working stability and reliability of the elevator are improved, and the safety accident is eradicated.

The invention discloses an oil groove sealing structure, and belongs to the technical field of bearings of power generation equipment. The oil groove sealing structure comprises a sealing cover and asealing tooth matched with a rotating part, wherein a sealing gap is formed between the sealing tooth and the rotating part; and the sealing tooth is in clearance fit with the sealing cover. The oil groove sealing structure is characterized in that an adjusting piece is arranged on the sealing cover; a screw rod is connected onto the adjusting piece in a penetrating mode; the screw rod is sleevedwith a nut; a notch is formed in the end of the screw rod; the sealing tooth is connected with the adjusting piece through the screw rod in a fastened mode; a groove is formed in the sealing tooth; areinforcing screw plug is embedded in the groove; one end of the screw rod stretches into the reinforcing screw plug and makes contact with the bottom wall of the groove; and the other end of the screw rod is sleeved with the nut. According to the oil groove sealing structure provided by the invention, the sealing gap between the sealing tooth and the rotating part can be rapidly and flexibly adjusted according to the actual operation condition, so that the lasting sealing performance can be kept, and the sealing reliability and the sealing effect are improved.