6results about How to "Adjust flow speed" patented technology

The application belongs to the technical field of medical supplies, and particularly relates to a lumbar cistern drainage and medicine administration device which comprises a connecting seat, a liquid storage bag, a catheter, a guide puncture needle and a puncture needle. After the insertion end of the guide puncture needle enters the subarachnoid space, the temperature of the cerebrospinal fluid increases the temperature of the first limiting part, and then the first limiting structure becomes an arched curve shape, and then the side wall of the first limiting part arches, and then the catheter in the subarachnoid space is prevented from moving out of the subarachnoid space, and at the same time, the catheter reserved below the partition plate is moved outward, and then the development needs are compensated through the reserved catheter, and then the catheter is prevented from being separated from the subarachnoid space. When the catheter needs to be taken out, low-temperature normal saline is slowly injected into the catheter through the liquid storage bag, and then the temperature of the catheter is reduced, and then the temperature of the first metal sheet is reduced, and then the first limiting structure becomes a straight line shape, and then the first limiting part is contracted, and then the catheter is conveniently pulled out.

This invention discloses an automatic grading and coal preparation equipment based on wet separation, comprising a bottom plate, side plates, a first grading hopper, a second grading hopper, a first jigging mechanism, a second jigging mechanism, a flow rate regulating mechanism, and a control chip. A screening and conveying mechanism for screening and conveying tailings is located above the first grading hopper. The screening and conveying mechanism picks up suspended coal from the first grading hopper according to control commands from the control chip and conveys it. The first and second jigging mechanisms screen the coal and floating liquid in the first and second grading hoppers. The flow rate regulating mechanism is installed inside the side plates and connected to the first and second grading hoppers respectively, adjusting the cutting angle of the first and second grading hoppers according to control commands from the control chip. This invention solves the technical problems of existing wet coal preparation equipment, such as the inability to adjust the screening speed, a large particle size range, and the inability to perform grading screening during the screening process.

The utility model relates to shock absorber technical field, and disclose a shock absorber internal hydraulic buffer stop structure, including the first cylinder, the first cylinder inner wall top is fixedly connected with the second cylinder, the oil cavity is formed between the first cylinder and the second cylinder, the second cylinder inner wall is provided with buffer stop mechanism. Through buffer stop mechanism realizes double buffering effect. When piston rod drives piston to move downward, second fixed ring moves down with piston, extrudes lift ring, makes buffer spring compression, utilizes the elastic deformation of spring to absorb vibration energy, provides first buffering, when piston continues to move down and approaches limit position, second fixed ring and the rubber block of first fixed ring top contact, the elastic buffer of rubber block further reduces piston descending speed, realizes second buffering. Double buffering mechanism not only effectively reduces vibration transmission, still can prevent piston and cylinder rigid impact under extreme working condition, prolongs shock absorber life.

The utility model discloses a quick-setting crystallizer which comprises an outer cylinder body, a spiral flow deflector is arranged between the outer cylinder body and an inner cylinder body, a cooling interlayer is fixedly installed on the inner side of the inner cylinder body, the upper end of the outer side of a shaft rod is fixedly connected with a push type stirring blade, and the lower end of the outer side of the shaft rod is fixedly connected with an anchor type stirring blade. The bottom end of the shaft rod is fixedly connected with a flow guide cone, feed liquid enters from a top feed port, a cooling medium is reversely introduced into each interlayer from top to middle to bottom, cooling water spirally moves through spiral flow deflectors, and the heat exchange coefficient is increased by more than 40%; crystal mush is guided by the flow guide cone to form secondary circulation, full-volume mixing is realized by matching with the double-structure stirring blades, and a temperature gradient of 10-25 DEG C / m is established through segmented temperature control, so that ordered growth of crystals is promoted; according to the device, the rotating speed of the shaft rod is controlled through the servo motor, the flowing speed of materials is adjusted, and the materials can be uniformly mixed, so that the cooling efficiency can be improved, the crystallization efficiency is improved, and the energy consumption is reduced.

The utility model discloses a liquid-driven extraction device for a wound drainage tube, which comprises a peristaltic pump and a storage bag, and the storage bag is provided with a shoulder strap. The peristaltic pump is arranged on the shoulder strap and comprises a driving shell and a pump head shell, the pump head shell is provided with a movable cavity, a rotating shaft is arranged in the movable cavity, rollers are arranged on the periphery of the rotating shaft, and the rotating shaft is driven by a motor to rotate. An inlet and an outlet are formed in the side face of the pump head shell, the drainage tube can be clamped and fixed between the side wall of the movable cavity and the roller, the two ends of the drainage tube extend out of the inlet and the outlet respectively, and the end, extending out of the outlet, of the drainage tube is connected to the drainage ball. When the patient gets out of the bed and walks, the patient does not need to hold the drainage ball with hands, traction is not prone to being caused, and the risk of tube disengaging is reduced; blood in the drainage tube is promoted to be conveyed into the drainage ball through the peristaltic pump, the drainage tube is kept unobstructed, and tube blockage caused by coagulation due to the fact that the blood in the drainage tube is not extracted in time is prevented.

The utility model relates to a cooling shaping jig for metallized film preparation, which belongs to the technical field of metallized film preparation, and comprises an I-shaped underframe, a template positioned above the I-shaped underframe and a film treatment groove arranged on the template in a penetrating manner, and an adjusting structure is arranged on the I-shaped underframe; the adjusting structure comprises a first motor and a supporting rod installed on the top of the I-shaped bottom frame, the supporting rod is rotationally connected with a rotating rod, and the template is connected with one end of the rotating rod; and a first shaft rod is mounted at the output end of the first motor. By arranging an adjusting structure, a first motor is started to drive a gear to rotate, so that an arc-shaped rack is driven to rotate, then the angle of a template is adjusted, the flowing speed of molten metal in a film treatment groove is adjusted, and the effect of controlling the forming speed of the molten metal is achieved; and therefore, matched operation of the molten metal input mechanism and the winding mechanism is facilitated.