4results about How to "Enough deformation" patented technology

The invention relates to the technical field of hemostatic clips, in particular to a chuck mechanism and a hemostatic clip. Aiming at the technical problem that the existing hemostatic clip has defects, the invention provides the chuck mechanism and the hemostatic clip, the structure of a clamping piece is improved, a three-way integrated hole is formed in the tail part of the clamping piece, and the integrated hole is matched and connected with a ball head of a metal wire, so that the clamping and closing of the clamping piece are controlled; and the mutual influence of the clamping and closing operation and the separation operation of the clamping pieces in the operation can be avoided by combining the control of the metal wire and the separation control between the metal wire and the clamping pieces. And moreover, through the design of the multi-stage locking part, the clamping piece can be locked under different clamping degrees, so that the clamping requirements under different conditions are met, and more excellent practicability and operation convenience are achieved.

The invention belongs to the field of hybrid bonding, and particularly discloses a bonding head for hybrid bonding and a bonding method.The bonding head comprises a bonding head body, the lower surface of the bonding head body is of a horizontal structure, and an annular air pressure groove with a downward opening is formed in the lower surface of the bonding head body along the edge; the positive-negative air pressure device is used for adjusting the air pressure in the annular air pressure groove; and the moving rod assembly comprises a main moving rod and a plurality of auxiliary moving rods, the main moving rod and the auxiliary moving rods penetrate through the bonding head body, and the auxiliary moving rods are arranged around the peripheral side of the main moving rod. According to the bonding head, the annular air pressure groove is formed in the bonding head body, the adsorption force on the to-be-bonded chip is increased, in the bonding process, the main moving rod and the auxiliary moving rod can push the to-be-bonded chip to enable the to-be-bonded chip to have enough deformation quantity, the chip cannot be separated from the bonding head body, the bonding effect of hybrid bonding is improved, and the bonding efficiency is improved. And voids on the bonding interface are avoided.

The present application discloses an adjustable oil well packer for oil well exploitation, which relates to the technical field of packers, and comprises a shell, a sealing pressure plate, a sealing rubber block, and a regulating component, wherein the regulating component comprises a first driving rod, a driving disc, a clutch disc, a control disc, and a second driving rod, wherein the clutch disc is configured to be composed of a plurality of fan-shaped discs, and the plurality of fan-shaped discs can independently move vertically. When the sealing rubber block is deformed to fit the inner wall of the oil pipe, if the driving disc continues to rotate, and the force tooth ring or the latch tooth has local wear, or debris is stuck between the force tooth ring and the latch tooth, then the plurality of fan-shaped discs that can independently move vertically can independently move according to the above situation, disperse the local pressure, and extend the service life of the driving disc or the fan-shaped disc, and when a certain fan-shaped disc or the latch tooth is damaged, it can be replaced separately, thereby reducing the maintenance cost.

This utility model discloses a rebound hammer for non-destructive testing of UHPC compressive strength, belonging to the field of concrete engineering testing technology. It includes a hollow shell, an impact rod, an impact hammer, an impact spring, a guide rod, a hook assembly, and a switch. The impact rod is telescopically connected to one end of the shell. One end of the impact spring is fixed, and the other end is connected to the impact hammer. Both the impact hammer and the hook assembly are slidably connected to the guide rod. The hook assembly can slide along the guide rod and engage with the impact hammer. The switch controls the release of the impact hammer by the hook assembly. The free length of the impact spring is 134.4±0.5mm, and the impact length after stretching is 140.0±0.5mm. The wire diameter of the impact spring is greater than 1.5mm. The UHPC compressive strength regression equation is: ; the value of c ranges from -0.001 to -0.004, where is the average rebound value of the test area or specimen, is the average carbonation depth of the test area, and is the converted value of concrete strength in MPa. This enables non-destructive testing of the compressive strength of UHPC.