30results about How to "Entry does not affect" patented technology

The invention relates to a minimally invasive spinal canal dilatation cutting tool, which comprises a drilling tool, a cutting tool, a bone grinding tool, a dilatation tool, screws and a positioning guide rod which are matched with one another, wherein the drilling tool, the dilatation tool and the screws are provided with through holes, and the drilling tool comprises a drill bit; the cutting tool comprises a cutting knife, and the bone grinding tool comprises a bone grinding mechanism; the dilatation tool comprises a dilatation mechanism, and the drilling tool also comprises a fastening strip; and the cutting tool also comprises a first bayonet, and the bone grinding tool also comprises a second bayonet. The surgical tool is applied to new minimally invasive spinal stenosis dilatation and is used for cutting off, lengthening and re-fixing the pedicle bone. All tools operate in a bore with a diameter of about 5mm and are used for cutting off, lengthening and re-fixing the pedicle bone from the inside out and expanding the canalis vertebralis. The minimally invasive spinal canal dilatation surgery is realized, the wound surface of a patient is small, the period of recovery from surgery for the patient is greatly shortened, and the surgery cost is low.

The invention relates to a burner fire cover and a burner cooker using the fire cover, wherein the fire cover includes a ring-shaped fire cover body, the bottom of the fire cover body has an air mixing chamber, and the top of the fire cover body is provided with a The fire transmission groove penetrates along its radial direction, and the fire transmission groove is in fluid communication with the gas mixing chamber. The groove is divided into two regions, the length direction of the fire transfer groove is along the radial direction of the fire cover body, the partition is provided with through holes, and the two regions in the fire transfer groove pass through the The through holes are in fluid communication. The present invention divides the fire transfer tank into two areas by setting a partition, and the two areas are connected through a through hole, so that the two areas are integrated and independent of each other, and can stabilize the flame with each other, so that the transmission The fire is stable and reliable.

The invention discloses a composite solar photovoltaic hot-water cold supply and heating system for a building, which mainly comprises a solar photovoltaic hot water sunshade plate, a semiconductor refrigerating assembly, a separate heat pipe with a short pipe bundle, an integral gravity heat pipe, a heat exchange header and the like. The system is characterized in that the solar photovoltaic hotwater sunshade plate and the semiconductor refrigerating assembly form a loop to realize indoor refrigeration and heat supply in summer and in winter by using solar power generation respectively; andthe separate heat pipe, the integral gravity heat pipe, the heat exchange header, a coil pipe, a water tank and the like form a hot water system to generate hot water when cooling and heating of the semiconductor refrigerating assembly are realized in summer and in winter respectively. The system solves the problem that heating and hot water generation cannot be realized at the same time in the combined application of the traditional solar photovoltaic power generation and semiconductor refrigerating assemblies; and the introduction of the separate heat pipe and the gravity heat pipe improvesthe refrigerating and heating efficiency and enlarges the application range.

The invention relates to the technical field of air valves and discloses a fast-sucking slow-discharging type air valve with a filtration function. The fast-sucking slow-discharging type air valve with the filtration function comprises an air valve main body and a valve assembly. A valve opening of the air valve main body is connected with the valve assembly. The valve assembly comprises a valve body. A valve body inner cavity is an S-shaped runner, and the valve body is divided into a left cavity and a right cavity. The two ends of the S-shaped runner are correspondingly provided with an airvalve main body connector and a pipeline connector which are not in the same cavity. A filter barrel is further arranged in the cavity provided with the air valve main body connector. The fast-suckingslow-discharging type air valve is suitable for being arranged in a pipeline provided with a service valve, a filter does not need to be arranged for the air valve independently, all original functions of the air valve are achieved, the air valve is provided with a filter, the runner in the valve assembly is in an S shape, resistance to water is large, resistance to air is small, air dischargingis facilitated, water draining is not facilitated, the ejection phenomenon of gas-liquid two-phase flow at the closing moment of the air valve can be reduced or avoided, and fast sucking and slow discharging functions of the air valve are enhanced.

The invention relates to the technical field of air valves, and discloses a fast-inhalation and slow-discharge air valve with maintenance filter. The fast suction and slow discharge air valve with maintenance filter includes an air valve body and a valve assembly, the valve opening of the air valve body is connected to the valve assembly, and the valve assembly includes a valve body and a valve body on-off mechanism, The inner cavity of the valve body is an S-shaped flow channel, and the two ends of the S-shaped flow channel are respectively provided with an air valve main body connection port and a pipe connection port, and the valve body on-off mechanism divides the S-shaped flow channel into two left and right chambers The body is used to cut off or connect the flow between the connection port of the main body of the air valve and the connection port of the pipeline. There is also a filter cartridge in the cavity with the connection port of the main body of the air valve. The filter cartridge is a double-layer structure, including an outer filter screen, Inner strainer and support plate. The fast suction and slow discharge air valve with built-in maintenance filter of the present invention does not need to be equipped with a separate maintenance valve and filter for the air valve, and has all the original functions of the air valve.

A biomass compressed straw stalk molding machine with a double-layer ring mold and a compression roller which are matched relates to a straw molding device. The biomass compressed straw molding machine solves the problem that the existing compressed straw stalk molding machine is poor in working stability, and the main working parts are severely abraded. A compressed straw stalk molding system comprises a double-layer ring mold mechanism, a spindle and a double-layer compression roller mechanism. The inner cavity of the double-layer ring mold mechanism forms a compression molding chamber, the double-layer ring mold mechanism and a motor are installed on a machine frame abreast, the spindle penetrates the double-layer ring mold mechanism, the lower end of the spindle stretches out of the machine frame to be fixedly connected with a large belt wheel, a power shaft of the motor stretches out of the machine frame to be fixedly connected with a small belt wheel, and the large belt wheel and the small belt wheel are connected through a synchronous tooth-shaped belt. The double-layer compression roller mechanism is arranged in the compression molding chamber and fixed on the spindle, and the compression roller and the ring mold of the double-layer ring module mechanism are in interference fit to achieve straw compression molding, The machine is used for molding of biomass compressed straw stalk.

The invention relates to the technical field of air valves, and discloses an air valve group with the function of maintenance, filtration and backwashing. The air valve group with the function of inspection, filtration and anti-cleaning includes an air valve, a filter, a first on-off mechanism, a second on-off mechanism and a T-shaped pipe fitting. Sewage outlet, the air valve is connected to the upper end of the T-shaped pipe fitting, the filter is a filter cartridge with a double-layer structure, the filter cartridge is fixed at the lower end of the air valve, and the length covers the valve opening of the air valve, the filter The ports of the cartridge for entering impurities correspond to the pipe connection port and the waste discharge port respectively, and the diameter of the ports is larger than the pipe diameter of the T-shaped pipe fitting. The first on-off mechanism is arranged on the T-shaped pipe fitting between the filter cartridge and the pipe connection port. , the second on-off mechanism is arranged on the T-shaped pipe fitting between the filter cartridge and the impurity sewage outlet.

The invention discloses a free fall type fully automatic intelligent continuous mousetrap, comprising a box body, a transmission board, an equipment shell, a mouse repelling component, a linkage component, a mouse storage component and an electric control board; the free fall type fully automatic intelligent mouse trap The continuous mousetrap has simple structure, small size and simple operation. It can realize unmanned management and reduce labor management costs; it does not block the walking path of mice, and does not cause the "new object reaction" of mice. Good; before the rodent enters the mousetrap and is forced to enter the rat storage assembly, except for being frightened, the body is not harmed, and no "danger signal" is released; the rodent is forced to enter the rat storage assembly and finally enters the bucket. Dangerous, but the "danger signal" cannot be transmitted because the whole rat body is immersed in liquid and the container is closed, so that the physical "separation" of rat trapping and rat storage does not affect the entry of subsequent rodents, and solves the problem of one follow-up mechanical rat trapping. The problem is that it is difficult for rodents to enter, and there is no secondary pollution. It is convenient and quick to dump the dead rodents and liquid in the bucket regularly.

The invention relates to a minimally invasive spinal canal dilatation cutting tool, which comprises a sleeve rod, a cutting rod sleeved with the sleeve rod in a sliding way, and a cutting knife, wherein the front of the sleeve rod is provided with an opening through which the cutting knife radially extends and retracts, and one end of the cutting knife is connected with the cutting rod; and the other end of the cutting knife is opposite to the opening, and the cutting knife radially extends or retracts through the opening under the driving of the relative sliding of the cutting rod and the sleeve rod to complete the cutting operation of pedicle bone. The cutting tool provided by the invention is applied to new minimally invasive spinal stenosis dilatation and is used for cutting off, lengthening and re-fixing the pedicle bone. The cutting tool only operates in a bore with a diameter of about 5mm and is used for cutting off the pedicle bone from the inside out. When the cutting tool enters the bore, the cutting knife retracts; and the cutting knife radially extends to cut the pedicle bone after entering the bore. The minimally invasive spinal canal dilatation surgery is realized in structural design, the wound surface of a patient is small, the period of recovery from surgery for the patient is greatly shortened, and the surgery cost is low.