45results about How to "Avoid discouragement" patented technology

The invention discloses a gas generation and storage integrated biomass pool, comprising a biomass pool body (1), a discharge water sealing pipe (2), an inclined charging pipe (3) and a top cover. The gas generation and storage integrated biomass pool is characterized in that: the top cover is a floating top cover (1) installed in the biomass pool body, the bottom surface of the floating top cover is provided with a pulley frame (7) and a pulley (8), and the pulley is inserted into a slide rail (9) at the inner wall of the biomass pool body. A counter weight (6) is installed on a base beam a framework (4) of the floating top cover. A grate (12) is installed at the inlet of the inclined charging pipe. In the invention, the integration of gas generation and gas storage of the biomass pool is achieved by the arrangement of the floating top cover and the counter weight, the ratios of gas generation and gas storage are high, and the air pressure in the biomass pool is constant and adjustable, thereby the normal and stable work of marsh gas appliances is guaranteed; simultaneously, the floating top cover is detachable, people can pull out and clean residues outside the biomass pool, which is safe and convenient; in addition, the arranged grate prevents larger objects, such as plastic bags, tree branches and the like from entering the biomass pool.

An ultra-fine foreign material filter belongs to the technical field of liquid filter. The ultra-fine foreign matter filter comprises a bucket body consisting of a heating jacket, an upper close cover arranged on the upper part of the bucket body, a filtering element device arranged in a bucket body cavity of the bucket body in a hanging way, a lower close cover arranged on the lower part of the bucket body, a secondary filter device, a first sealing and fixing device and a second sealing and fixing device; the upper close cover consists of an insulation jacket which is communicated with the heating jacket, the lower close cover is provided with a lower close cover insulation jacket which is communicated with the heating jacket, the lower close cover is further provided with a filtrate outlet and a heating medium introducing interface, the secondary filter device is clamped between the lower close cover and the lower edge of the bucket body, the first sealing and fixing device consists of a first seal ring and a first fastener, and the second sealing and fixing device consists of a second seal ring and a second fastener. The ultra-fine foreign matter filter is characterized in that the first seal ring and the second seal ring are wrapped seal washers with first U-shaped cavities. The ultra-fine foreign material filter has the advantages of having ideal filtering effect, avoiding seepage and gas leakage and facilitating the protection of the device and the prevention of environmental pollution.

The invention relates to a vacuum heat sealing machine applicable to a vacuum insulation panel. The vacuum heat sealing machine is provided with a box the two ends of which are communicated, the middle part of the box is a vacuum cavity in which a vacuum insulation panel is placed, the two ends are respectively a vacuum heat sealing cavity, the openings at the two ends of the box are respectively hinged with a cover plate, the two ends at the top of the box are respectively fixed with two transition cylinder bodies and two bilayer seal electrodes, each transition cylinder body is fixed with a heat sealing cylinder, the piston rods of the heat sealing cylinders face downwards and are inserted into the vacuum heat sealing cavities by virtue of the transition cylinder bodies, two piston rods in each vacuum heat sealing cavity are connected with a bakelite plate, an electric heat flat wire is wound at the bottom of the bakelite plate, the two ends of the electric heat flat wire are respectively connected with a corresponding bilayer sealing electrode by virtue of tensioning columns arranged on the two ends of the bakelite plate, and the two sides of one corresponding vacuum heat sealing cavity on the box are respectively provided with an exhaust tube joint and a vacuum detector joint. The vacuum heat sealing machine can simultaneously seal the two ends of vacuum insulation panel and has good sealing property, thus not only being beneficial to improving working efficiency but also saving energy.

The invention relates to the technical field of mixing equipment in powder metallurgy, and particularly discloses a metal powder and adhesive mixing device. The metal powder and adhesive mixing devicecomprises a machine frame and a mixing tank, wherein a partition board is fixedly connected to the interior of the mixing tank; an opening is formed in the partition board; a screen is horizontally connected to the opening in a sliding manner; a material storage chamber is fixedly mounted on the side wall of the mixing tank; the material storage chamber is communicated with a discharge pipe; a fixing block is mounted on the discharge pipe; the fixing block is connected with a sliding plate in a sliding manner; a through hole is formed in the sliding plate; in the sliding process of the sliding plate, the through hole can be intermittently communicated with the discharge pipe; a second spring is connected between the sliding plate and the partition board; a motor and a cylinder are fixedlymounted on the machine frame; the motor is used for driving the screen and the sliding plate to slide so as to achieve feeding; the cylinder is connected with an elastic gasbag for storing gas. The metal powder and adhesive mixing device can fully contact a metal powder with an adhesive, so that the mixing uniformity of the two is improved and the mixing efficiency of the two is improved, therefore, the production quality of hard alloy is guaranteed and the market competitiveness of an enterprise is improved.

The invention discloses a novel medical endoscope, and belongs to the field of medical endoscopes. The novel medical endoscope comprises a handle and a control display, a lower end of the handle is fixedly connected with a bended flexible pipe, a lower end of the bended flexible pipe is connected with a miniature camera, and the miniature camera is electrically connected with the control display. When the novel medical endoscope is required to be bended, gas in a springback long gas bag enters a large sealed tube, so that a large pushing disc can move upwardly. A first pulling rope is pulled via a connecting piece, a small pushing disc in a small sealed tube moves downwardly at the same time, a second pulling rope is loosened, so that a fourth inner tube rotates around a third inner tube, and the third inner tube enables the lower end of the bended flexible pipe to be bended. A plurality of inner tubes are connected in the bended flexible pipe, the two adjacent inner tubes can be actively bended, so that the bended flexible pipe can be actively bended. Friction between the bended flexible pipe and an inner wall of a throat tube of a human body is little, and discomfort of a patient can be effectively reduced.

The invention provides a pipeline stain remover, which consists of a first sealing leather cup, a second sealing leather cup, a third sealing leather cup, a stain removing wheel and a first elastic shaft, or a second elastic shaft, or a third elastic shaft, or a fourth elastic shaft, or a fifth elastic shaft, or a seventh elastic shaft. Compared with the prior art, the pipeline strain remover has the advantages that when the pipeline strain remover passes through a pipeline elbow, the self elastic shaft can naturally bend to turn along with the elbow, and after the pipeline strain remover passes through the pipeline elbow, through the self memory function, the working of immediately doing parallel movement to the pipeline axial line is realized, so that the undamaged completeness and the normal operation of the pipeline stain remover are protected, the service life of the pipeline stain remover is greatly prolonged, meanwhile, the pipeline stain remover is positioned at the elbow turning part, the pipeline stain remover can maintain the original state, the sealing performance is good, the air leakage is avoided, the resources are saved, the operation speed of the pipeline stain remover is uniform, the service life of the pipeline stain remover is prolonged, the scale removing cleaning efficiency is greatly improved, and the integral benefits are very obvious.

The invention discloses an inflation and ignition integrated gas blaster. The inflation and ignition integrated gas blaster comprises an inner pipe, an inner pipe filling cavity, an inflation and ignition mechanism, an inflation mechanism and an outer pipe, wherein the inner pipe filling cavity is formed in the inner pipe; the two ends of the inner pipe are in sealed connection with a first inner sealing cap and a second inner sealing cap correspondingly; the first inner sealing cap and the second inner sealing cap are connected through a connecting piece; the outer pipe is arranged outside the inner pipe; a first outer sealing cap and a second outer sealing cap are connected between the inner pipe and the outer pipe in a sealed mode; the inflation and ignition mechanism is installed on the first inner sealing cap; the first outer sealing cap is provided with the inflation mechanism; a sealed cavity between the inner pipe and the outer pipe is an outer pipe filling cavity; the inner pipe filling cavity is filled with supercritical oxygen and carbon-containing organic matter; and the outer pipe filling cavity is filled with liquid carbon dioxide, liquid nitrogen or other liquid substances liable to gasify. The inflation and ignition integrated gas blaster has the advantages of being low in manufacturing cost, high in heating efficiency, good in transportation safety and high in blasting power.

The invention discloses a vertical double-station wire winding machine, and belongs to the technical field of vertical wire winding equipment. The wire winding machine comprises a rack, a wire winding driving mechanism, a supporting plate assembly, an idle positioning mechanism and a lifting rotating mechanism, wherein the wire winding driving mechanism, the idle positioning mechanism and the lifting rotating mechanism are all arranged on the rack; the lifting rotating mechanism is located between the wire winding driving mechanism and the idle positioning mechanism; an anti-slip assembly is arranged on the wire winding driving mechanism; the supporting plate assembly is arranged on the lifting rotating mechanism; and receding openings are formed in the positions, corresponding to the wire winding driving mechanism and the idle positioning mechanism, on the supporting plate assembly. The upper end of the anti-slip assembly extends into a clamping hole in the lower end of a winding drum, so that the winding drum is prevented from slipping relative to a bearing plate in the wire winding process, and smooth wire winding work is guaranteed.

The invention discloses an automobile wheel enhancing the overall bearing capacity. The automobile wheel comprises a tire, threads, a spoke, bolt holes, a reinforcing ring, cooling holes, a rim, a tire pressure monitoring device and a rubber sealing layer. The rim is connected with the spoke, and the bolt holes and the cooling holes are formed in the outer side of the spoke; the reinforcing ring is arranged on the cooling holes, and the tire is arranged on the rim; the tire pressure monitoring device is arranged in the tire, and the threads are formed in the tire; and the rubber sealing layer is pasted to the inner wall of the tire. The tire of the automobile wheel enhancing the overall bearing capacity is a vacuum tire, the rubber sealing layer is pasted to the inner wall of the tire, and the good air tightness between the tire and the rim can be ensured; a failure part of the rim is usually located at a wheel flange, the wheel flange of the rim of the wheel is thickened by 2mm, the problem of rim cracking is effectively solved, and the overall bearing capacity of the wheel is improved; and failure of the spoke usually occurs at the cooling holes and the bolt holes, the thickness of the spoke of the wheel is increased by 2.5mm, and the overall bearing capacity of the wheel is improved.

The invention discloses a gas blasting device which comprises an inner pipe, an inner pipe filling cavity, an ignition mechanism, a first inflation mechanism and an outer pipe, wherein the inner pipe filling cavity is arranged in the inner pipe; the two ends of the inner pipe are in sealing connection with a first inner sealing cover and a second inner sealing cover; the first inner sealing cover and the second inner sealing cover are connected through a connecting piece; the outer pipe is arranged on the outer layer of the inner pipe; a first outer sealing cover and a second outer sealing cover are connected between the inner pipe and the outer pipe in a sealing manner; the ignition mechanism and the first inflation mechanism are mounted on the first inner sealing cover; a second inflation mechanism is mounted on the first outer sealing cover; the sealing cavity between the inner pipe and the outer pipe is an outer pipe filling cavity; the inner pipe filling cavity is filled with supercritical oxygen and carbon-containing organic matters; the outer pipe filling cavity is filled with liquid easy gasifying materials such as liquid carbon dioxide or liquid nitrogen. The gas blasting device has the advantages that the manufacture cost is low, the heat release efficiency is high, the transport security is good and the blast power is high.

The invention discloses a multifunctional air bag test device. The test device mainly comprises an air bag box, a blower, a fixed test piece connecting plate, an air bag membrane sealing fixing pressing strip, a safety guard bar and a rubber sealing fin. Apart from being used for testing wind uplift resistance of a metal enclosure plate, the multifunctional air bag test device can also be used for testing stability performance of a purline under metal roofing board constraint condition, can simulate a wind uplift force effect and a gravity load effect, and can perform a stability performance test of the purline under the two totally different load effects.

The invention discloses an arm muscle wire drawing machine for basketball training, which comprises a mounting base plate, a connecting plate is connected to the outer side of the mounting base plate, a wire drawing assembly is mounted at the top end of the connecting plate, a supporting rod is welded to the top end of the connecting plate, a counterweight cylinder is mounted at the top end of the supporting rod, and a volute spiral spring is mounted on the inner side of the counterweight cylinder. One end of the volute spiral spring is clamped with a take-up reel, and one end face of the take-up reel is provided with a coil groove, the inner side of the coil groove is rewound with a transmission cable, the middle position of the inner side of a steering box is welded with a transmission column, the outer side, located at the side of a driven disk, of the transmission column is covered with a transmission roller, and the inner side of the transmission roller is sliding embedded with a positioning screw; and a driving cable is wound on the outer side of the transmission roller, one end of the driving cable is connected with a pull handle, and by changing the length of the driving cable, people do not need to run back and forth to multiple places for exercise, time waste is reduced, the interval time of exercise can be shortened, the exercise effect is improved, and space occupation of multiple devices can be reduced.

The invention discloses a pneumatic type closed smoke-blocking type safety fireproof door, and belongs to the technical field of fireproof doors. According to the pneumatic type closed smoke-blocking type safety fireproof door, when a fire disaster occurs, a ball pricking steel needle can spontaneously prick a material storage balloon, a pneumatic solution flows out, pneumatic powder reacts to generate a large amount of carbon dioxide, the generated carbon dioxide flows into an arc-shaped guide cylinder through a communicating hole and can push the push rod piston, and therefore the fireproof door in an open state is closed, the fireproof door is ensured to be in a closed state when the fire disaster happens, then smoke is prevented from penetrating through the fireproof door and rushing to an escape channel, the safety performance is greatly improved, through the arrangement of an air leakage door opening assembly, escape personnel can make an air leakage main pipe communicated through a first valve and a second valve on the two sides of the fireproof door correspondingly, and therefore the carbon dioxide is sprayed out; and the sprayed carbon dioxide can achieve a flame-retardant effect, so that fire spreading is hindered to a certain extent, and more sufficient escape time is won for people.

The invention provided a tussilago farfara mothproof storage technology. The storage technology is a low-cost and easy-to-operate tussilago farfara controlled atmosphere bag nitrogen filling storage technology. The storage technology is characterized in that the tussilago farfara is loaded into a plastic film airbag, the nitrogen with the purity of 99% fills the airbag, oxygen in the gaps betweenmedicinal materials in the airbag is replaced, and breeding of moth in the bag is inhibited; the nitrogen is manufactured by a small movable type automobile tire nitrogen machine, and the nitrogen isused as a nitrogen source after being purified by using a nitrogen purifier taking the glass fiber and the glass wool as a filter element; the plastic film airbag is manufactured of a cylindrical plastic film with the thickness of 0.1 mm and the double layer width of 2-5 meters, one end of the plastic film is tied with a thin rope to make a simple plastic airbag with the circumference of 4-10 meters; after the tussilago farfara are sorted and packaged through cartons or hemp bags, the tussilago farfara are placed into the airbags, and then the bag openings are tied; a hard plastic pipe with adiameter of 1 cm is led into the bottom of the plastic airbag as an air inlet pipe, and an air outlet pipe is led into the top of the plastic airbag; and the air inlet pipe is connected with the nitrogen purifier, nitrogen fills the airbag for one time every ten days, 5-10 minutes each time, and air in the bag is discharged to the outside through the exhaust pipe.

The invention discloses a milk cup. The milk cup comprises a cup body and a base installed at the bottom of the cup body, wherein a limiting cavity is formed in the bottom of the base, an inner bottomof the limiting cavity is rotationally connected with a lead screw, an upper end of the lead screw penetrates through the base and the bottom of the cup body, extends into the cup body and is fixedlyprovided with a rotating vane, a circumferential side wall of the lead screw is in threaded connection with a sliding block, a lower end of the sliding block and the inner bottom of the base are jointly connected with a reset spring, a driving block is fixed to an upper end of the sliding block, and a storage box is fixed into the base. The method is advantaged in that heat of hot water poured into the cup body is absorbed through a heat absorbing plate, a heat conduction column transfers heat into a driving box so that a dichloroethyl ether solution in the driving box is gasified, a drivingmagnetic block moves out of the driving box under the action of air pressure, the sliding block can be driven by the driving block to move upwards, the lead screw is driven by the sliding block to rotate, a rotating vane rotates, and milk powder is stirred.

The invention relates to the technical field of clamping devices and particularly discloses a device for clamping motorbike parts. The device comprises a rack and a downward pressing mechanism for compressing workpieces, a telescopic air cylinder, a cylinder body and a tube body are fixedly connected to the rack, and a second piston is slidably connected into the cylinder body. The cylinder body is partitioned into an upper cavity and a lower cavity by the second piston, the lower cavity communicates with a discharging pipe, and a pipe opening of the discharging pipe is in threaded connectionwith a spray nozzle. The output end of the telescopic air cylinder is fixedly connected with the second piston, the second piston is rotatably connected with a first rotary shaft, and a sliding blockis fixedly connected to the outer wall of the first rotary shaft. A spiral sliding way matched with the sliding block is formed in the inner wall of the tube body, the interior of the first rotary shaft is of a hollow structure, a plurality of ventilating holes are formed in the first rotary shaft, and a suction cup for sucking the workpeices is connected with the first rotary shaft. The first rotary shaft is in linkage with the downward pressing mechanism. The device for clamping the motorbike parts aims to achieve workpiece stable clamping, the situation that the workpieces skew in positionin the paint spraying process and thus paint spraying fails is avoided, and the paint spraying quality is improved.

The invention relates to the technical field of white spirit distillation equipment, and discloses a liftable white spirit distillation device with high sealing performance and white spirit distillation process. The liftable white spirit distillation device comprises a box body, fixing blocks are fixedly installed on the two sides of the bottom of the box body, a lifting device is installed through the fixing blocks, a supporting plate is installed at the top of a second connecting plate, and a distillation barrel is installed on the upper end face of the supporting plate; the top of the distillation barrel is movably connected with a distillation cover; a component box is fixedly arranged on one side of the distillation barrel, and an automatic uncovering device is arranged in the component box; a transverse strip and an air outlet pipe are arranged on the upper end surface of the distillation cover; a steam pipe is clamped in the air outlet pipe; the steam pipe is provided with a convex ring and a groove; a clamping cavity is formed in the solid part of the air outlet pipe; the clamping cavity is provided with a clamping device through the T-shaped groove. By means of the technical scheme, the automatic uncovering function of the distiller is achieved, the distiller is lowered and lifted through the lifting device, connection of the outlet pipe and the steam pipe is facilitated, and damage caused by moving the steam pipe back and forth is not needed; in addition, fixing and sealing of pipeline connection are achieved through the clamping device.

The invention discloses a miniature air charging device which comprises a valve body and an air bag. A hollow chamber body is formed in the valve body, and an air inlet communicating with the hollow chamber body is formed in the upper end of the valve body. An air outlet communicating with the hollow chamber body is formed in one end of the valve body, and an air bag port communicating with the hollow chamber body is formed in the other end of the valve body. An air inlet valve device is arranged at the air inlet, and an air outlet valve device is arranged at the air outlet. The air bag port is connected with the air bag. The miniature air charging device also comprises an end cover arranged at the air outlet, and the end cover moves along the axial direction of the valve body so as to close or open the air inlet. By changing the set positions of the air inlet and the air outlet, the volume of the miniature air charging device can be reduced, so that the occupied space is less. Meanwhile, the end cover is arranged at the air outlet of the miniature air charging device and can move to open the air inlet, and then the operation of air charging, air discharging and the like can be conducted. The end cover also can move to close the air inlet, the product is sealed well at the moment, air cannot leak, and the miniature air charging device does not need to be charged repeatedly under the condition of long-term use.

The invention specifically relates to a non-pneumatic tire of an elliptical overall bearing body structure. The non-pneumatic tire comprises a tire crown part (1), an elliptical overall bearing body (2) and a rim joint ring (3); the tire crown part (1) sequentially comprises a tread (1-1), a tread compound (1-2), a buffer layer (1-3) and a carcass ply (1-4) from the near-ground side to the inside;the elliptical overall bearing body (2) is divided into an upper layer structure (2-1), a middle layer structure (2-2) and a lower layer structure (2-3) in the radial direction of the tire; each layer consists of a transverse elliptical structure and a longitudinal elliptical structure which is located in the transverse elliptical structure; and the major axis of each longitudinal elliptical structure coincides with the minor axis of the transverse elliptical structure correspondingly. According to the non-pneumatic tire of the elliptical overall bearing body structure, the elliptical overallbearing body (2) can fully absorb the impact force received by the tire crown part (1) and uniformly distribute the load, and the radial deformation generated by a stress point of the tire is reduced, so that the non-pneumatic tire has better buffering property and durability.

The invention discloses a purification tower of super mixed and melted gas-liquid-solid ternary phase. The purification tower comprises a purification tower body, a purification unit, a cover body, a rotor wing, fan blades, atomization devices, jetting devices and a gas-water separator, wherein a flue gas inlet and a sewage outlet are formed in the lower end of the purification tower body; a flue gas outlet is formed in the upper end of the purification tower body; the purification unit comprises annular water tanks; the annular water tanks with upward openings are circumferentially arranged on the inner side wall of the purification tower body; an opening of the cover body faces towards the lower end of the purification tower body; the cover body covers the annular water tanks; one part of skirt of the cover body extends into each annular water tank; the rotor wings and the fan blades are coaxially arranged on the outer side and the inside of the cover body respectively; the atomization devices and the jetting devices respectively extend into the purification tower body and are located above the cover body; water injection directions of the jetting devices directly face towards the rotor wing; the gas-water separator is arranged between the purification unit and the flue gas outlet; at least one purification unit is arranged in the purification tower body. The purification tower is capable of achieving multilayer, multistage, resistance-free and zero-pressure purification treatment of flue gas or tail gas; the treatment effect is excellent; and the purification tower is energy-saving and environmental-friendly.

The invention relates to the technical field of marine lifesaving, in particular to a life jacket with an automatic inflating and tightening buoyancy device, which comprises a lifesaving vest, a buoyancy foam block sewn on the outer side surface of the lifesaving vest and an automatic inflating device. According to the life jacket with the automatic inflating and tightening buoyancy device, a bottom supporting cover internally provided with an inflating air bag is connected to a bottom bandage at the lower end of a life vest, annular inner air bags are sewn to the inner sides of arm wearing openings in the two sides of the life vest, the supporting area of the bottom of a wearer is increased, and meanwhile the annular inner air bags expand and extrude out; an internal opening of the arm wearing opening is tightened, so that the wearing comfort is improved while the wearing stability of a person is ensured; solid sealing liquid is inserted into the connecting end of the internal air delivery pipe, and the solid sealing liquid is fused with water to form a cementing substance through automatic water encountering or manual pressing, so that the damaged end of the air bag is sealed and plugged, air leakage is avoided, and the safety of the life jacket is greatly improved.

The invention discloses an air leakage prevention tyre pressure detector comprising a base, a butting cover, a tyre pressure detecting assembly and a valve nozzle assembly, wherein the base is provided with an annular protruding wall, an external thread and an annular limiting wall, and an annular groove is formed between the annular limiting wall and the annular protruding wall; the butting cover is provided with an annular wall body which is in threaded connection with the external thread of the base by an internal thread, the end part of the annular wall body is contained in the annular groove, an air tight ring is embedded and clamped between the butting cover and the base, and the butting cover and the base are in threaded connection and then matched to define an air tight space together; the tyre pressure detecting assembly is contained in the air tight space; and the valve nozzle assembly is arranged between the base and the butting cover. The invention limits the position and the shape of the annular wall body because the outer part of the annular wall body of the butting cover is provided with the annular limiting wall, and keeps good gas tightness by preventing the threaded connection part between the butting cover and the base from being deformed.

The invention discloses a compressor cylinder cover with good tightness. The compressor cylinder cover comprises a cylinder cover main body, a pressing ring is integrally formed at the middle positioninside the cylinder cover main body, a first rubber sleeve is arranged on the outer surface of the cylinder cover main body, a groove is formed in the upper surface of the cylinder cover main body, asliding groove plate is welded at the bottom end inside the groove, a protective pad is placed inside the groove, and four connecting holes are formed in the middle of the protective pad. Since the protective pad is designed inside the groove, so that the problem that the cylinder cover is inconvenient to protect and easily touches the outer surface of the cylinder cover during transportation, and therefore the cylinder cover is not tightly installed and deflated during installation and use is avoided, the outer surface of the cylinder cover main body can be protected by the first rubber sleeve, and when the protective pad touches the upper surface of the cylinder cover main body, a sliding head slides inside a sliding groove plate through the action of elastic deformation of the spring to buffer the protective pad, and at the moment, the upper surface of the cylinder head main body is protected by the protective pad.

The anti-infection respiratory endoscopy auxiliary device comprises a mask, an air outlet pipe, a rear lower bandage, a rear upper bandage, a left air inlet pipe and a right air inlet pipe, an auxiliary sleeve is arranged in the middle of the front side face of the mask, an air outlet pipe opening is formed in the lower end of the auxiliary sleeve, and the upper end of the air outlet pipe is twisted outside the air outlet pipe opening; a rear upper bandage is tied between the two groups of upper hanging buckles, and a rear lower bandage is tied between the two groups of lower hanging buckles; a left air inlet pipe is installed outside the left air inlet, and a right air inlet pipe is installed outside the right air inlet. The detachable bandage is arranged, the mask can be conveniently and elastically bound to the back side of the head of a patient, binding is safe and stable, meanwhile, the air inlet pipes are installed on the left side and the right side of the mask, air inlet is rapid, the air inlet amount completely meets the requirement for the respiratory capacity of the patient, and meanwhile the arranged air outlet pipe is long enough and can conveniently extend downwards to be connected with peripheral disinfection and purification equipment; arm spreading during examination of doctors is prevented from being affected, and the medical examination bed is safer and more convenient to use.

The invention relates to the technical field of powder metallurgy mixing equipment, and specifically discloses a mixing device for metal powder and adhesive, which includes a frame and a mixing tank. A partition is fixedly connected to the inside of the mixing tank, and the partition is provided with an opening. The horizontal sliding connection is connected with a screen; the side wall of the mixing tank is fixedly installed with a storage room, the storage room is connected with a discharge pipe, and a fixed block is installed on the discharge pipe. During the sliding process, the through hole can be intermittently connected to the discharge pipe, and the second spring is connected between the sliding plate and the partition; the motor and the cylinder are fixedly installed on the frame, and the motor is used to drive the screen and the sliding plate to slide to realize feeding. The cylinder body is connected with an elastic air bag for storing gas. The invention can make the metal powder and the adhesive fully contact, thereby improving the uniformity and efficiency of the mixing of the two, ensuring the production quality of the cemented carbide, and improving the market competitiveness of the enterprise.

The invention discloses an air feeding nozzle of automatic press fitting equipment for an automobile barometer pointer. The air feeding nozzle aims to solve the problems that an existing air nozzle cannot meet the using requirement of new automatic press fitting equipment, the air tightness is poor, local air leakage is caused, and due to the fact that the filling amount is too large instantaneously, an air pipe connected to the outer portion of the air nozzle is prone to tube bursting. The air nozzle comprises a head end and a rod end, the head end and the rod end are integrally manufacturedor fixedly connected, the top end face of the head end is hemispherical, the outer side end face of the rod end is cylindrical, vent holes formed along the central axis are formed in the head end andthe rod end, one or more layers of annular protrusions are arranged on the outer end face of the rod end, and the number of the annular protrusions is three or five. The upper portion of the air feeding nozzle is manufactured to be hemispherical, the middle of the air feeding nozzle is provided with a large hole for ventilation, the upper portion of the air feeding nozzle is manufactured to be hemispherical so that the air feeding nozzle can be tightly attached to a ventilation threaded hole of the automobile instrument air pressure pointer, and air leakage is prevented; and a stepped hole isformed in the air feeding nozzle, the lower portion of the air feeding nozzle is provided with a small hole, the upper portion of the air feeding nozzle is provided with the large hole, a small swirling airflow vortex is formed, and air leakage is prevented.