53results about How to "Flexible pressure adjustment" patented technology

The invention discloses an automatic grinding machine for metallographic specimens, which comprises a basal body, an automatic adjusting stand, a spray pipe, a swivel bearing, a driving motor, a driving gear, a driven gear, a rotating disk and a sandpaper pad, wherein the swivel bearing is fixedly mounted on the basal body, the driven gear is fixedly mounted on the swivel bearing, the driven gear is engaged with the driving gear mounted on a spindle of the driving motor, and the driving motor is fixedly mounted at the back side position of the basal body. The rotating disk is fixedly mounted at the upper part of the driven gear, and the sandpaper pad is fixedly mounted above the rotating disk. The automatic adjusting stand is vertically mounted at the upper part of the basal body, adjustable pressing rods are arranged on a crossbeam of the automatic adjusting stand, and adjustable pressing blocks are mounted at the lower parts of the adjustable pressing rods. The spray pipe is fixedly mounted on the basal body. By arranging the multi-layer annular sandpaper pad and the adjustable pressing blocks, the working efficiency of the automatic grinding machine is increased, and moreover, the pressure between a metallographic specimen and sandpaper can be flexibly adjusted to meet different grinding requirements; the structure of the automatic grinding machine for metallographic specimens is simple, the design is reasonable, and the cost is low.

The invention discloses a clamping-installing type quick clamping mechanism and an installation method thereof, and relates to the technical field of mechanical clamps. The clamping-installing type quick clamping mechanism comprises a first clamping plate and a second clamping plate, wherein the second clamping plate is provided with a pressing plate; by pressing a buckling plate at one end of a lever plate and extruding an elastic element, the spacing between a clamping block and the second clamping plate is enlarged, the clamping block and the second clamping plate are directly clamped to aobject to be clamped, and the pressure of the buckling plate is removed to enable the clamping block and the second clamping plate to fix the object to be clamped under the elastic force of the elastic element. The clamping-installing type quick clamping mechanism is provided with a group of clamping plate to quickly clamp and install the superposed periphery of a plurality of sets of plates, thefunction of clamping is achieved by a lever and a spring group, pressure regulation is flexible, and the application is wide.

The invention relates to a corset for auxiliary use in stereotaxic radiotherapy, which is provided with an air bag, a balloon catheter and a corset; one end of the corset is provided with a fixing belt, and the other end is provided with a restraining ring of the fixing belt. The corset belt is provided with two auxiliary brake airbags; the two auxiliary brake airbags are connected with the airbags through the airbag catheter, and correspond to the patient's abdomen in use, and are symmetrical with respect to the sagittal plane of the human body; The corset belt is provided with ventilation holes; the fixing belt is a self-adhesive belt; the connection between the air bag and the air bag catheter is provided with an air bag regulating valve. The corset belt used in auxiliary stereotactic radiotherapy of the present invention has a good fixing effect on organs, is easy to use and operate, has a simple structure, and is low in cost. Comprehensive therapeutic effect of surgery.

The invention discloses a wire feeding reduction gearbox, which comprises a transmission mechanism, wire feeding shafts and wire feeding regulating shafts, wherein the wire feeding shafts are erected horizontally, one end of each of the wire feeding shafts is connected with one wire feeding regulating shaft while the other end of each of the wire feeding shafts is provided with a wire feeding wheel, the transmission mechanism transmits power to the wire feeding shafts, and fixing mechanisms used for axially positioning the wire feeding regulating shafts are mounted on the wire feeding regulating shafts. The wire feeding reduction gearbox is simple and convenient in operation, high in precision and long in service life and operators do not need to run back and forth to regulate the wire feeding reduction gearbox.

The invention discloses an intermediate type nasopharynx expanding and bleeding-stopping bag and a use method thereof. The intermediate type nasopharynx expanding and bleeding-stopping bag comprises a flexible rubber hose, wherein a blind tube is arranged at one end of the flexible rubber hose while a valve is arranged at the other end of the flexible rubber hose; a soft rubber bag is fixedly arranged at the middle position of the flexible rubber hose; the flexible rubber hose runs through the soft rubber bag; the soft rubber bag and the flexible rubber hose are sealed to form an integral structure; and the flexible rubber hose in the soft rubber bag is provided with a small hole serving as a channel which allows air and a liquid to flow in and out. The intermediate type nasopharynx expanding and bleeding-stopping bag, disclosed by the invention, has a simple structure, is easy to process and produce, has a low cost, can protect the surface of a wound of the nasopharynx part safely, can stop bleeding and prevent infection efficiently and can prevent adhesion and bleeding of the nasopharynx part after an operation.

The invention discloses a similar material simulation semi-flexible loading experimental facility and an experimental method thereof. A loading device formed by a plurality of semi-flexible loading units is adopted on the basis of the prior art, the semi-flexible loading unit adopts a hexahedral structure form of which the bottom surface is only elastically deformed and other surfaces are made of rigid materials, and adopts a hydraulic oil transmission stress loading mode; connecting parts are arranged at two ends of a top beam and are fixed on a vertical column by bolts to realize detachable connection; a plurality of locating holes are formed in different height positions of the vertical column respectively, the top beam can be locked at the positions in different heights of the vertical column through the connecting parts by the bolts or hinge pins according to different experiment demands, and the problems that the sample model loading stress is non-uniform, the system error is caused, the adjustment is inconvenient and the operation is time-saving and labor-saving and the like are solved.

The invention relates to a cyclone for ore dressing, which includes a frame and a plurality of cyclones, and the plurality of cyclones are arranged on the frame; an overflow pipe and a feeding pipe are arranged on the frame, and the overflow pipe Placed above a plurality of cyclones, the overflow pipe communicates with the tops of the plurality of cyclones through a plurality of arc-shaped tubes; a bracket is provided on one side of the upper end of the frame; the feed pipe is fixed on the bracket On the top, the feed pipe communicates with the upper ends of multiple cyclones through a plurality of conical pipes; each conical pipe is fixed with a non-gap gate valve and a pressure regulating valve; the pressure regulating valve includes a valve seat And two valve plates, the valve seat is fixed on the conical pipe, and there is a guide channel in the valve seat; there are two installation grooves in the valve seat; the two valve plates are respectively movable and placed in the two installation grooves ; Both valve plates are provided with magnet blocks, and the two magnet blocks are magnetically attracted to each other. Compared with the prior art, the present invention regulates the pressure of incoming raw materials to improve the separation effect of raw materials.

The invention discloses a pressurization system based on free piston expansion / compressor-linear motor. The system mainly consists of four parts, including an excess pressure recycling system, a circuit switching system, a pressurization system and a control system. The pressurization system disclosed by the invention can be used for transforming excess pressure energy in a gas conveying pipeline of a natural gas driven generator set into electric energy and storing the electric energy, simultaneously driving a free piston expansion / compressor to compress air and then respectively supplying the compressed air to a gas charging system of the natural gas driven generator set and a pressure regulation system of the free piston expansion / compressor. In comparison with a current excess pressure driven power generation system which adopts a turbine type machinery as an acting unit, the excess pressure driven power generation system has the advantages of being reliable in work, high in system energy utilization rate and mechanical and electrical integration degree and flexible in regulation on pressure fluctuation of natural gas or pressurized air at the outlet of the expansion / compressor.

The invention discloses a multi-level combined protection steaming cabinet, wherein: when the steaming cabinet is powered on, the central controller controls the closing of the second exhaust valve; after the user inputs an instruction through a button module, the central controller executes the instruction and Control the opening or closing of the intake valve and the first exhaust valve to control the heating process of the steamer; when the travel switch is off, it means that the door is open, and the central controller controls the opening of the first exhaust valve; when the travel switch is closed , indicating that the door is closed, and the central controller controls the heating process of the steamer by controlling the on-off of the intake valve and the first exhaust valve. The above-mentioned multi-level joint protection steam cabinet forms a combination of active and passive, normal and abnormal, mechanical and electronic through the joint action of the button module, the first exhaust valve, the second exhaust valve, the travel switch and the handle-type door lock. The multi-level joint protection method achieves better safety and more flexible pressure regulation, effectively ensuring the safety of the steamer.