5results about How to "Prevent down" patented technology

The utility model belongs to the field of surgical auxiliary instruments, and particularly provides a surgical triangular fixing frame which comprises a fixing frame body, a lower limb fixing support and an upper limb fixing support, the lower limb fixing support and the upper limb fixing support are used in cooperation with the fixing frame body, and a supporting plate is arranged in the surgical triangular fixing frame to improve the stability of the fixing frame. Through holes are formed in the operation triangular fixing frame, the supporting plate and the fixing support, when the operation triangular fixing frame is used, after the blood expelling and hemostasis lantern ring is well placed, a stretching rope of the blood expelling and hemostasis lantern ring is cut off, the rope is tied to the through holes to assist in fixing, the fixing firmness degree can be improved, and the anti-skid groove in the plate face of the operation triangular fixing frame can achieve the anti-skid and anti-disengagement effects.

This utility model relates to the field of chemical experimental equipment technology, specifically to a laboratory feeding device. The feeding device is characterized by comprising a mounting frame, which includes a lower material tray support and an upper feeding support. A feeding bottle is mounted on the material tray support, and a reaction vessel is connected below the feeding bottle. The feeding bottle includes a solid material bottle, and a discharge port is provided at the lower end of the solid material bottle. A solid feeding mechanism is provided on the feeding support, and the solid feeding mechanism includes a vertical drive mechanism. A vibration mechanism is provided at the lower end of the vertical drive mechanism. The vertical drive mechanism drives the vibration mechanism to move downward to contact the solid material bottle, causing residual material inside the solid material bottle to vibrate and fall off. The vibration mechanism enables vibratory feeding, causing material adhering to the walls of the solid material container to fall off, ensuring smooth material feeding and guaranteeing experimental efficiency and quality.

The utility model relates to the field of measurement technology, concretely relates to water level measuring scale, including fixed column and the rotatory strip of fixed column one side is equipped with, and the peak measuring assembly of rotatory strip inside is equipped with, and the rotatory strip front end is set up scale table and water surface board respectively, and the peak measuring assembly includes the second slide mouth of rotatory strip left end, and the rack of second slide mouth right end and rotatory strip corresponding place is equipped with, and the rack top is equipped with L type board, through setting up the rotating block with second sawtooth block and first spring ring, places second spring ring with rotating block corresponding place inside in rectangular groove inside, cooperates with arc convex block, circular ring groove, thread groove and fixed screw, realizes the rotatory strip with scale table and can be adjusted to the observation angle of suitable and fixed, sets up the peak measuring assembly in the rotatory strip inside to make the float ball with water surface height rise drive L type board and rack synchronous rise, sets up Z type block and third spring ring and prevents the rack to descend, thereby realizes water level measuring scale to water surface peak value data record.

The utility model relates to zip fastener technical field, and disclose a zip fastener convenient to replace zipper head's zip fastener the inside fixed mounting of upper shell has triangle cone, the inside movable joint of triangle cone has connecting column, connecting column penetrates triangle cone, the upper end fixed mounting of connecting column has runner, the lower end fixed mounting of connecting column has limit sheet, the lower end fixed mounting of limit sheet has limit post A, the outside fixed mounting of limit post A has outer thread, the lower end movable joint of upper shell has rotary column, the lower end fixed mounting of rotary column has connecting piece, the lower end fixed mounting of connecting piece has lower shell, the upper end fixed mounting of lower shell has nut, the inside arrangement of nut has internal thread, internal thread and outer thread adapt, this zip fastener convenient to replace zipper head, when the zipper head needs to be replaced when damaging, hand holds runner and rotates counterclockwise, runner drives connecting column synchronous rotation, because the outer thread of limit post A and the internal thread of nut adapt.

The utility model provides a steering wheel hand -off detection device, include: steering wheel subassembly, including steering wheel outer ring seat, slide hole, slide column, contact seat and micro -switch in steering wheel subassembly, compare with prior art, the utility model has the following beneficial effect: through increasing steering wheel subassembly, upper shell subassembly and lower shell subassembly, upper shell subassembly and lower shell subassembly are covered and set in steering wheel outer ring seat outside, the driver both hands hold steering wheel, and the uniform transmission of pressure passes through elastic buffer layer and flexible pressure conduction zone, overcomes reset spring elasticity and drives slide column to go down, makes contact seat and micro -switch contact and makes it " close " with, and micro -switch and slide column structure are evenly provided with four groups, to improve driving safety, through increasing steering wheel subassembly, upper shell subassembly and lower shell subassembly, upper shell subassembly and lower shell subassembly pre -with steering wheel subassembly snap, then realize splicing fixed, can be convenient to dismouting use.