7results about How to "Avoid excessive force" patented technology

The utility model discloses a PCB punching device which structurally comprises a workbench and pressing plates, PCBs are placed on a placing plate, a first motor drives a first lead screw to enable the pressing plates on the two sides to move inwards under the action of pushing force, the pressing plates enable the PCBs to be close to each other, attached to each other and clamped, and therefore the PCBs can be punched. And meanwhile, a second electric push rod at the upper end downwards pushes a lower pressing plate to downwards press the PCB again, so that the stability of the PCB during punching is better, the deviation condition is reduced, the condition that the PCB is damaged during pressing due to excessive stress can be prevented under the action of a first pressure sensor and a second pressure sensor, the safety is higher, and the production efficiency is improved. And a drill bit at the bottom end can move left and right under the condition that a second motor drives a second screw rod, and a stress sliding block can drive the drill bit to move front and back under the condition that a third motor drives a third screw rod, so that the punching work of different positions of the PCB can be realized, the working efficiency is higher, the time for manually adjusting the direction is saved, and the working progress is accelerated.

The utility model discloses an adjustable stirrer which comprises a bottom support, a driving rod detachably mounted above the bottom support, an adjusting rod mounted in the driving rod in a sliding manner, an adapter fixedly mounted at the bottom of the adjusting rod, a plurality of supporting rods mounted on the side wall of the adapter in a hinged manner, and a plurality of stirring rods mounted on the side wall of the bottom support in a hinged manner, one end of the supporting rod is movably connected with the stirring rod at the corresponding position; when the adjusting rod is pulled upwards, the multiple stirring rods are unfolded to be in an umbrella shape through the supporting rods, and when the adjusting rod is pushed downwards, the multiple stirring rods are folded through the supporting rods. The stirrer can penetrate through a pile hole and broach the bottom of the pile hole, conditions are provided for follow-up pile bottom construction, the problems that quicksand layer hole forming is difficult, hole collapse is prone to occurring, and sediment at the hole bottom is large are solved, the structure is simple and compact, and operation is convenient and fast.

The utility model relates to the technical field of hoist room construction, in particular to a bilateral balance type hanging basket device for hoist room facade construction, which comprises a moving mechanism mounted on a hoist room facade and in sliding fit with the hoist room facade, and hanging baskets respectively connected with the moving mechanism and positioned on the outer sides of two groups of parallel facades of a hoist room, the moving mechanism comprises a guide rail which is installed on the roof and arranged in the transverse direction and a connecting mechanism which is installed on the guide rail and connected with the two sets of hanging baskets. According to the utility model, two groups of external facades of the hoist room can be constructed simultaneously; the construction difficulty is greatly reduced, the construction efficiency is greatly improved, and the construction cost is reduced.

The invention relates to the technical field of medical instruments, and discloses a laparoscopic surgical instrument with an intelligent regulation and control function and an intelligent regulation and control method thereof.The laparoscopic surgical instrument with the intelligent regulation and control function comprises a mechanical operation part, a snake bone bending part, a tail end execution part, a mechanical transmission part and an intelligent regulation and control part; the mechanical operation part comprises a bent hand wheel; the snake bone bending part is connected with the mechanical operation part; the tail end execution part is connected with the snake bone bending part and is used for executing tissue separation, cutting and electrocoagulation operations; and the mechanical transmission part is connected between the bending hand wheel and the snake bone bending part. The intelligent regulation and control part is arranged, hand wheel operation is collected in real time through the pose sensing part, a pre-calibrated snake bone kinematics model is combined, the expected angle of the tail end execution part is accurately calculated, auxiliary torque or damping is applied to the bent hand wheel through the auxiliary regulation and control part, and transmission gaps, snake bone elastic deformation and hand shaking of a doctor are effectively compensated; and the positioning precision of the tail end can be improved.

This application relates to a balloon inflator, including a supporting balloon, a connecting tube, and supporting plates. The supporting balloon is connected end-to-end and forms an annular inner cavity for exposing the surgical field. One end of the connecting tube is connected to the supporting balloon, and the other end is used to connect to an external inflator. The connecting tube is used to inflate or deflate the supporting balloon. Two supporting plates are provided and conform to the outer wall of the supporting balloon, with the two supporting plates positioned opposite each other along the center of the supporting balloon. This application uses a flexible balloon inflator, which is more flexible than existing rigid mechanical structures. The supporting balloon is subjected to gas pressure all around, thus distributing the pressure evenly and avoiding excessive force on any one area. Furthermore, because it uses a balloon inflator, compared to a rigid mechanical structure, it has a larger expansion range and a smaller contraction range, making it suitable for more scenarios.

The utility model discloses a novel relay contact point elastic structure device belongs to relay technical field, including the casing, the casing is installed with the contact piece, one side of contact piece is installed with the swing board, one side fixed connection of swing board has the mounting block, the elastic device of assembly in mounting block outside, the locking device of assembly in mounting block with casing is inside. In the utility model, first hook loses or obtains the pulling force according to the electromagnetic attraction effect, at this moment, the round plate on the slide bar and the sleeve baffle synchronous movement are driven, when being in the closed state, the baffle is located above the connecting shell, can limit the elastic force of reset spring, thereby avoiding the contact point closing and the force too violent, and when being in the open state, the round plate moves down to the inside of connecting shell, also can limit the elastic force of reset spring, avoid the contact point strong rebound time too long because of the elastic force release too fast, thereby reduce the contact point damage risk, improve the reliability and stability of relay work.