6results about How to "Block circulation" patented technology

This invention discloses a hemostatic device for emergency rescue in the wild, comprising a binding and fixing mechanism, a local pressure mechanism, and a rotation and fixing mechanism. This invention belongs to the field of outdoor rescue technology, specifically referring to a hemostatic device for emergency rescue in the wild. The binding and fixing mechanism allows the device to be fixed to the location where bleeding needs to be stopped on the injured person. The hemostatic bandage is fixed to the cylindrical shell, forming a complete ring with the main hemostatic shell and the hemostatic bandage. This complete ring can accommodate limbs of different diameters and allows for compression of bleeding arteries and veins via its own mechanism, thereby stopping the bleeding.

The utility model belongs to the technical field of doors and windows and furniture, and particularly relates to a dustproof partition door and window which comprises a door and window frame, a control panel is fixedly installed on the front face of the door and window frame, a dustproof cover is fixedly connected to the top of the door and window frame, and two sets of sliding grooves are formed in the two sides of the top of the door and window frame. A glass plate is slidably connected into each sliding groove, sealing assemblies are arranged on the two glass plates, each sealing assembly comprises an L-shaped groove formed in the inner side of the corresponding glass plate, a strip-shaped groove is fixedly connected to the top of one side of each L-shaped groove, and a strip-shaped sliding block is slidably connected to the inner side of each strip-shaped groove; a rack is fixedly installed on one side of the strip-shaped sliding block, and one side of the rack is connected with a gear in an engaged mode. The door and window can be automatically opened and closed, the door and window can be prevented from loosening or being damaged, it is ensured that the closing position of the door and window is tightly attached in the closed state, air circulation and invasion of dust and tiny particles are effectively blocked, and the dustproof effect of the door and window is improved.

The utility model belongs to the field of Tyvek paper packaging tightness test, and particularly discloses a Tyvek packaging product air tightness test cavity which comprises an upper cavity, a lower cavity, a pressing plate, a rubber pad, a test sample and Tyvek paper, and is characterized in that the pressing plate, the rubber pad and the upper cavity are combined to form a rubber convex surface; in the testing process, the Tyvek paper expands due to the internal and external pressure difference, the rubber convex face is attached to the Tyvek paper through the gravity of the upper cavity, air circulation of the Tyvek paper can be effectively blocked, deformation of the Tyvek paper is greatly reduced, and due to the fact that the Tyvek paper has the characteristic of air permeability, the structure effectively solves the problem that the Tyvek paper has interference on detection data results, and the detection accuracy is improved. The rubber convex surface is perfectly attached to the Tyvek paper, the possibility that the Tyvek paper is broken due to excessive deformation is avoided, the rubber pad is in contact with the boss to form a sealed cavity, a closed detection cavity environment is formed in the lower cavity, the structure is ingeniously used, the soft rubber has the advantage of good compliance, and the sealing effect is guaranteed.

The utility model provides a subsynchronous oscillation suppression device used for a doubly-fed fan, a machine side converter and a grid side converter of the doubly-fed fan both adopt a VSG control strategy, the doubly-fed fan comprises an active power error path and a reactive power error path, and the subsynchronous oscillation suppression device comprises a self-adaptive wave trap, a voltage stabilizing circuit, a voltage stabilizing circuit and a voltage stabilizing circuit, the adaptive wave trap is arranged in the active power error path and the reactive power error path; and the subsynchronous information estimator is installed at a grid connection point of the double-fed fan, and the subsynchronous information estimator is used for estimating the subsynchronous oscillation frequency. According to the utility model, the technical problem of grid-connected broadband oscillation of the doubly-fed fan in which both the machine-side converter and the grid-side converter adopt a VSG control strategy is solved.

The utility model relates to medical equipment technical field discloses a transfusion monitoring and alarm device for nursing, including drip bottle, the bottom installation of drip bottle has transfusion pipe, the surface fixed of transfusion pipe has Murphy's dropper, the surface installation of transfusion pipe has first fixed box, the surface installation of transfusion pipe has second fixed box, the bottom installation of second fixed box has infrared scanning device. This transfusion monitoring and alarm device for nursing, when the user needs to transfuse the patient, through the shaft and make the first fixed box and second fixed box merge together, then push the button to one side, make the one end of button hold the one side of mushroom block and form fixed, make the clamping device of small pusher both ends clamp the transfusion pipe, make the medicine liquid in transfusion pipe unable to deliver, avoid personnel when hearing the alarm sound, unable to change the medicine bottle in time, also will not happen the phenomenon of blood reflux.

This invention discloses a mining equipment detection and identification device, relating to the field of mining equipment detection technology. It includes a protective shell, a housing, and a door. Fixed posts are fixedly installed on both sides of the bottom of the protective shell. The housing is fixedly installed on the top of the two fixed posts. First filter plates are fixedly installed on both sides of the top of the housing. A fan is fixedly installed between the two first filter plates. A first air inlet is provided through the top of the housing, and the fan extends into the first air inlet. This invention not only dissipates heat from the inside of the device but also filters dust from the air, preventing dust from damaging the RFID tag. It also allows for timely replacement or cleaning of the first filter frames, preventing dust from blocking airflow within the protective shell. Furthermore, it keeps the housing away from the ground, preventing dust from entering the housing through the air outlet, thus improving the practicality of the mining equipment detection and identification device.