44results about How to "Supercharged convenience" patented technology

The invention relates to a miniature sprayer pump core and a two-stroke pressing method thereof, which are designed for solving the technical problem of poor structure design of a traditional miniature sprayer. The miniature sprayer pump core is characterized in that the internal diameter of a connecting cover is in a hexagonal rhombus shape, the external diameter of the connecting cover is provided with a convex fastener, the connecting cover is sleeved into rod convex ribs of a piston rod, and the external diameter convex ribs of the connecting cover are buckled with an internal diameter groove of a pump body; the pump body is provided with a hollow cavity from the convex space of the internal diameter to a large spring in a compression state, and the height H of the hollow cavity is larger than the height h of each convex rib of a lower valve and an upper valve. When a head cap is pressed, the head cap drives the piston rod, a small spring, the lower valve and a piston to simultaneously move downwards, the large spring is stressed to deform, the piston stops in the convex space of the internal diameter of the pump body, and the large spring is in a compression state. When the head cap is continuously pressed, the head cap drives the piston rod and the lower valve to simultaneously and continuously move downwards, the small spring is stressed to deform, a diversion hole of the lower valve is exposed out of the external diameter, and high-pressure liquid enters a diversion groove of the lower valve in the piston rod through the diversion hole. The invention is suitable for pressing-type miniature sprayers with various kinds of low-density liquid.

The invention discloses compensation type switchable concrete block multi-performance detection equipment. The invention relates to the technical field of concrete block detection. In the prior art, during the detection of concrete blocks, the detection equipment is scattered; when many detection items exist, rapid integrated detection cannot be realized, therefore, an accurate result cannot be quickly obtained, the invention provides a technical scheme which is characterized in that the equipment comprises a mounting frame, a detection base, a water supply mechanism and a driving mechanism, wherein a detection base is movably arranged in the mounting frame, a water supply mechanism is fixedly arranged at the top of the mounting frame, the detection base and the water supply mechanism arein transmission operation through the driving mechanism, and a placement table movably arranged with the mounting frame is arranged below the detection base. Water feeding, steering and transpositionare achieved through driving of one motor, different items can be detected conveniently, different detection devices are arranged in an integrated mode, different items can be detected at the same time, and the detection efficiency and accuracy are improved.

The invention relates to the technical field of nursery stock treatment and management equipment, and specifically discloses a quantitative nutrient solution injection device used for contaminated trees. The quantitative nutrient solution injection device used for the contaminated trees comprises a fixing structure, a support frame, a driving structure, a storing structure, a stirring structure, and a pressurizing structure; the storing structure is rotatably connected with the support frame by the driving structure, so that the storing structure is capable of driving the driving structure torotate under the action of wind; at the same time, the driving structure drives the storing structure to rotate, so that a nutrient solution stored in the storing structure shakes under the action ofa centrifugal force so as to achieve a uniform mixing effect on the nutrient solution in the storing structure; the wind power is synchronously transformed into a driving force of the stirring structure; the stirring structure is rotatably connected with the storing structure by the driving structure, so that stirring on the nutrient solution along a vertical direction in the storing structure bythe driven stirring structure is facilitated along with rotation of the storing structure so as to have the nutrient solution stirred in all directions, thereby greatly improving stirring efficiency and quality so as to avoid deposition of the nutrient solution.

The invention relates to an emulsion explosive conveying twin-screw pump system. The emulsion explosive conveying twin-screw pump system comprises an outboard bearing twin-screw pump, wherein the outboard bearing twin-screw pump is connected with an explosion-proof deceleration motor through a flexible coupler. The emulsion explosive conveying twin-screw pump system is characterized by also comprising a spiral propeller, wherein the spiral propeller is arranged in a propeller shell and connected with the propeller shell through a propeller bracket, the lower end of an outlet of the propeller shell is connected with the upper end of an inlet of the outboard bearing twin-screw pump, and the spiral propeller is driven by an explosion-proof motor connected at the other end of the propeller bracket. The emulsion explosive conveying twin-screw pump system has the advantages that by designing the two-motor driving type, the spiral propeller and the twin-screw pump are driven by different motors, the rotating directions, the rotating speeds and the power of the two motors are different, the motor of the propeller is low in power and rotating speed so as to be beneficial to material exhaust, and the driving motor of the twin-screw pump is high in power and rotating speed so as to be beneficial to material supercharging.

The invention provides a large-scale production process for preparing a beta-crystal form polyvinylidene fluoride hollow fiber membrane by an improved TIPS method and the polyvinylidene fluoride hollow fiber membrane prepared by the preparation method. According to the method, an existing high-speed mixer is used for mixing and stirring materials, a twin-screw extruder is used for heating, melting, meshing and modifying the materials, and the materials are extruded by a granulation die head, cooled, formed, granulated, bagged and stored into a semi-finished product; similarly, the twin-screw extruder is additionally provided with a melt metering pump for metering and pressurizing, a spinning die head is replaced, the process is adjusted, and hollow fiber nascent filaments can be produced by using the granules; by carrying out stretching and annealing shaping combined post-treatment on the obtained hollow fiber membrane filaments, on the premise of ensuring high strength, hydrophilicityand high flux of the beta-crystal structured polyvinylidene fluoride product, the process is simpler, the production efficiency is higher, the membrane filament quality is more stable, and the product is particularly suitable for membrane bioreactors with higher requirements on the membrane filament strength and the membrane flux.

The invention discloses a gas supercharging device for carbon dioxide flooding. The device comprises a tank body, a drainage pipe, a gas outlet pipe, an adjusting valve, a booster pump, a gas inlet pipe, a first barrel body, a motor, a spiral shaft, a flow guide pipe, a second barrel body, a top plate, a hydraulic cylinder, supporting legs, a pressing plate, a connecting rod, a limiting rod, a piston, a sealing ring, a supporting plate, a bearing seat, a rotating shaft, a roller, a washer, a fixed pipe, a connecting pipe, a sleeve, a conveying pipe, a gasket, a convex plate, a bolt, a box body, a box cover, a water outlet pipe, a water inlet pipe, a water pump, a circulating pipe, a separator plate and a diversion port. The device has the beneficial effects that the tank body is adopted for storing carbon dioxide, carbon dioxide gas can be compressed while carbon dioxide is conveyed, the pressurization effect of carbon dioxide is improved, the effect of mixing the carbon dioxide with crude oil is improved by adopting multi-stage gas compression, heat dissipation of the surface of the barrel body can be implemented, temperature adjustment is achieved, and adjustment on pressure and temperature in the carbon dioxide gas conveying process is facilitated.

Provided is a supercharged internal combustion engine comprising a high-pressure turbine connected to a channel of a low-pressure turbine and a bypass line, branching from upstream the high-pressure turbine, connectable to the channels of the low-pressure turbine via a control element positioned within the bypass line, is provided. Adjusting the control element fluidly connects each of the channels of the low-pressure turbine to the bypass line responsive to the exhaust-gas flow rate to optimize the performance of the engine.

The invention discloses a pressure relay, relates to the technical field of relays, and solves the problems that when an existing pressure relay triggers an electric signal, the pressure of the pressure relay is inconvenient to adjust, the sensitivity is relatively low, the pressure relay cannot be suitable for various occasions, the practicability is relatively low, misoperation is caused when the pressure is unstable, and the operation safety of a circuit cannot be ensured. The relay comprises a relay shell; the upper part of the relay shell is rotationally connected with a group of pressure adjusting rotary handles; a group of central transmission supporting columns are connected in the relay shell in a sliding manner; the left side in the relay shell is rotationally connected with a group of connecting transmission shafts; the left side in the relay shell is rotationally connected with a group of electric shock transmission shafts; and a group of oil discharge plunger is slidably connected to the internal of the lower side of the right side of the relay shell. According to the invention, pressurization is carried out through the pressure spring, the middle transmission connecting plate moves, the movable contact is driven to be in contact with the static contact, triggering is carried out, and generation of an electric signal is realized.

The invention relates to the field of electroplating wastewater treatment tanks, and particularly discloses an electroplating wastewater treatment tank, which comprises a storage structure, a chip removal structure, a driving structure, a flow guide structure, a feeding structure, a cleaning structure and an angle adjusting structure. The driving structure is connected to the interior of the storage structure, and the cleaning structure is used for cleaning sludge and stirring an electroplating solution; one end of the driving structure is connected with the flow guide structure for aeration; and the cleaning structure can be conveniently driven by the driving structure to perform all-dimensional stirring in the storage structure, so that the stirring efficiency and the stirring quality are greatly improved, meanwhile, in the stirring process, gas conveniently passes through the flow guide structure and then enters the cleaning structure from the driving structure, wastewater in the storage structure is aerated by the cleaning structure, the stirring and mixing efficiency and quality of the wastewater are further improved, after sludge and scraps are deposited in the storage structure, the scraps and the sludge are conveniently scraped through the cleaning structure, and the treatment effect of the scraps and the sludge in the storage structure is better.

Methods and systems are provided for adjusting flow of exhaust gas from downstream of an exhaust turbine outlet to an exhaust gas aftertreatment device inlet via a compact turbine outlet cone with adjustable swirl vanes. Exhaust flow reaching the exhaust gas aftertreatment device is adjusted based on a desired exhaust gas temperature and exhaust gas flow rate at the aftertreatment device. During cold start conditions, the swirl vanes may be closed to concentrate exhaust gas flowing towards a portion of the aftertreatment device while after attainment of aftertreatment device light-off temperature, the position of the swirl vanes may be adjusted to introduce turbulence and homogeneity to exhaust flow reaching the exhaust aftertreatment device.

The invention discloses a small power deep well pumping unit, and the small power deep well pumping unit comprises a turbine pump and a vane pump, the circulating fluid outlet of the turbine pump is connected with the inlet of the vane pump through a pipeline, the outlet of the vane pump is connected with the circulating fluid inlet of the turbine pump through a pipeline, a closed circulating channel is formed between the turbine pump and the vane pump and filled with the circulating fluid, the rotary shaft of the vane pump is connected with the output shaft of a driving motor, the rotary shaft of the turbine pump is connected with the rotary shaft of a screw pump, an oil pumping port is formed at the lower end of the screw pump while the upper end of the screw pump is connected with an oil discharge pipeline. The small power deep well pumping unit has remarkable result that no reversing abrasion is generated; the oil can be pumped in a small power; the oil well liquid column load is raised by hydraulic pressure, the impact and vibration load of the walking beam rod string are not generated and energy-saving effect is achieved; the length of the screw pump can be changed for increasing the pressure without limit on the supercharging area ratio, the lift of pump is raised by hydraulic pressure supercharging operation and the high lift of pump deep well oil pumping can be realized.

The invention discloses a biogas supercharging device. The biogas supercharging device comprises a supercharging device body and a gas storage tank; the supercharging device body comprises a supercharging tank, an air cylinder and a push rod; one side of the supercharging tank is provided with the air cylinder, and one end of the air cylinder is fixedly connected with the push rod; the other end of the push rod penetrates through the side wall of the supercharging tank and extends into the supercharging tank, and the position, located in the supercharging tank, of the top of the push rod is fixedly connected with a compression plate; the two sides of the compression plate are provided with a gas inlet bin and a compression bin correspondingly; and the other side of the supercharging tank is provided with the gas storage tank, and the top of the gas storage tank is provided with an exhaust pipe and a pressure gage. The biogas supercharging device has the beneficial effects that the compression plate is arranged in the supercharging tank and used for squeezing biogas, and thus, the biogas with a large volume can be supercharged at a time conveniently; a combination of a reset springand a sealing plug is arranged on the compression plate and used for gas feeding, so that the biogas is conveniently compressed; and the air cylinder is arranged on one side of the supercharging tankand used for pushing the push rod to circularly contract, and continuous supercharging is facilitated.

The invention discloses a ground pit repair equipment for indoor decoration. The ground pit repair equipment comprises a box body, wherein a support bottom plate is fixedly connected to the lower surface of the box body, a fixed discharging pipe, a positioning fixed column and a connecting column are fixedly connected to the lower surface of the support bottom plate, an electromagnetic valve is fixedly connected to the surface of the fixed discharging pipe, universal wheels with brakes are fixedly connected to the bottom end of the positioning fixed column, an inverted concave plate is fixedly connected to the bottom end of the connecting column, and a positioning convex plate is inserted into the inner wall of the inverted concave plate. According to the ground pit repair equipment for indoor decoration, the box body, the support bottom plate, the fixed discharging pipe, the positioning fixed column, the connecting column, the electromagnetic valve, the universal wheels with the brakes, the inverted concave plate, the positioning convex plate, a locking bolt, a scraping plate, an arc-shaped handrail, a control panel, a driving motor, a stirring rod and a fixed feeding pipe are arranged, so that the ground pit repair equipment for indoor decoration has the effect of convenience in use.

The invention discloses a shaft with supporting, centering and pressurizing functions and a gas turbine rotor. The shaft sequentially comprises a compressor installation part and a turbine installation part, the turbine installation part includes a turbine support part connected with a turbine, the outer diameter of the turbine support part is larger than that of other parts, adjacent to the turbine support part, of the shaft, and a pressurizing mechanism is arranged on the turbine support part. The shaft with the supporting, centering and pressurizing functions and the gas turbine rotor havethe beneficial effects that the structure and layout are simple, machining is easy, the supporting, centering and pressurizing functions can be achieved through the turbine support part, in the case of consuming a small amount of useful work, the deformation quantity of the rotor is reduced, the probability of collision between rotor parts and stator parts is reduced, the stability of the whole rotor is optimized, and best comprehensive benefits are achieved.

The invention relates to the technical field of fire-fighting equipment, and discloses a conveying device for conveying fire-fighting foam liquid. The conveying device comprises a liquid storage cylinder, wherein the top of the liquid storage cylinder fixedly communicates with a transition pipe; a matched L-shaped inserting pipe is inserted into the transition pipe; a first sealing ring matched with the transition pipe is fixedly connected to the outer pipe wall of the L-shaped inserting pipe in a sleeving mode; one end, far away from the transition pipe, of the L-shaped inserting pipe fixedlycommunicates with an air inlet hose; an external thread is arranged on the outer pipe wall, close to the top end, of the transition pipe; moreover, a rotating cylinder is arranged on the transition pipe in a sleeving mode; an internal thread matched with the external thread is arranged on the inner cylinder wall of the rotating cylinder; moreover, the rotating cylinder is in threaded connection with the transition pipe; a matched ball bearing is fixedly installed on the inner cylinder wall, close to the top end, of the rotating cylinder; and the L-shaped inserting pipe penetrates through theball bearing. According to the conveying device for conveying the fire-fighting foam liquid, the fire-fighting foam liquid can be conveniently and rapidly conveyed into a storage tank of a fire-fighting truck, so that time-consuming and labor-consuming manual carrying is avoided, and then the conveying efficiency of the fire-fighting foam liquid is effectively improved.

The invention discloses a vagina plugging device for maintaining abdominal cavity pressure in minimally invasive gynecology. The device comprises a plugging air bag for plugging the vagina and maintaining the abdominal cavity pressure; the plugging air bag is connected with an inflation device; the inflation device is a manual inflation assembly; the manual inflation assembly comprises a holding and pressing inflation air bag assembly; and the holding and pressing inflation air bag assembly communicates with the plugging air bag through a hose. According to the invention, the uterus is taken out of the vagina after being completely excised in a minimally invasive surgery, at the moment, the abdominal cavity communicates with the outside through the vagina stump, CO2 gas filling the abdominal cavity leaks out of the body from the vagina stump, and at the moment, a surgeon plugs the vacant plugging air bag into the vagina of a patient and uses the holding and pressing inflation air bag assembly in the manual inflation assembly to inflate the plugging air bag to plug the vagina of the patient to keep certain pressure of pneumoperitoneum, so that the abdominal wall is separated from the organs, and space is created for the laparoscopic minimally invasive surgery. According to the invention, the manual inflation assembly is convenient for nurses and doctors to manually and flexiblyincrease the pressure, the cost is low and the effect is good.

The invention discloses a method and equipment for preventing and controlling weed damage in a rice planting process, and relates to the technical field of agricultural equipment. Supporting legs are installed on the two opposite sides of the frame body, pin shafts are installed at the bottom ends of the supporting legs, idler wheels are installed on the pin shafts, a plurality of installation bases are installed on the frame body, long shafts are installed on the installation bases, the long shafts and the pin shafts are in transmission connection through a first belt, and a plurality of cover bodies are installed in the frame body. The other end of the cover body is connected with a cleaning part installed on the frame body through a vibrating rod, a rotating part is installed in the cover body, a belt wheel corresponding to the rotating part is installed on the long shaft, and the corresponding belt wheel and the rotating part are in transmission connection through a second belt. In the moving process, the roller rotates, the rotating roller drives the long shaft to rotate through the first belt, the rotating long shaft drives the rotating part to rotate through the second belt, use of a power assembly is reduced, the structure of the device is effectively reduced, and installation and maintenance are facilitated.

The invention discloses an ultrahigh-pressure working cylinder structure for hot isostatic pressing machines, which mainly comprises a working cylinder body, an upper end cover and a lower end cover, the upper end cover is arranged on the upper end of the working cylinder body, and the lower end cover is arranged on the lower end of the working cylinder body. The ultrahigh-pressure working cylinder structure is characterized in that the working cylinder body comprises a core barrel (1), an insulating layer (2) and a cooling interlayer (3), the cooling interlayer (3) is arranged between the core barrel (1) and the insulating layer (2), and the upper end cover and the lower end cover are respectively arranged on the upper and lower ends of the core barrel (1). Not only is the structure of the ultrahigh-pressure working cylinder structure simple, but also the cost is low, and the ultrahigh-pressure working cylinder structure also can meet the service requirement of a hot isostatic pressing working cylinder, and thereby can carry out hot isostatic pressing operation under the working condition of temperature lower than 300 DEG C, so the ultrahigh-pressure working cylinder structure is suitable for popularization and use.

The invention relates to a miniature sprayer pump core and a two-stroke pressing method thereof, which are designed for solving the technical problem of poor structure design of a traditional miniature sprayer. The miniature sprayer pump core is characterized in that the internal diameter of a connecting cover is in a hexagonal rhombus shape, the external diameter of the connecting cover is provided with a convex fastener, the connecting cover is sleeved into rod convex ribs of a piston rod, and the external diameter convex ribs of the connecting cover are buckled with an internal diameter groove of a pump body; the pump body is provided with a hollow cavity from the convex space of the internal diameter to a large spring in a compression state, and the height H of the hollow cavity is larger than the height h of each convex rib of a lower valve and an upper valve. When a head cap is pressed, the head cap drives the piston rod, a small spring, the lower valve and a piston to simultaneously move downwards, the large spring is stressed to deform, the piston stops in the convex space of the internal diameter of the pump body, and the large spring is in a compression state. When the head cap is continuously pressed, the head cap drives the piston rod and the lower valve to simultaneously and continuously move downwards, the small spring is stressed to deform, a diversion hole of the lower valve is exposed out of the external diameter, and high-pressure liquid enters a diversion groove of the lower valve in the piston rod through the diversion hole. The invention is suitable for pressing-type miniature sprayers with various kinds of low-density liquid.

The invention provides a light substance wet separator for construction waste treatment. The light substance wet separator comprises a driving device, the rotating frame is connected to the output end of the driving device; the rotating frame is rotationally connected to the shell; the fishing buckets are connected to the rotating frame in a circumferentially and uniformly distributed manner; the bucket inlet is formed in the fishing bucket; the multiple drainage holes are formed in the side, away from the bucket inlet, of the fishing bucket; the pressurizing hopper is connected to the fishing hopper and is communicated with the interior of the fishing hopper through the drainage hole; the pressurizing hopper outlet is formed in the end, away from the drainage hole, of the pressurizing hopper; the drainage seat is connected to the pressurizing hopper; the drainage inlet is formed in the drainage seat; the drainage outlet is formed in the drainage seat and is communicated with the pressurizing hopper outlet; and the lower opening is formed in the lower end of the shell and can separate the light substances from the water and guide the water flow, so that the water carrying the light substances enters the hopper more easily.

The invention relates to the technical field of heat exchangers, in particular to a propulsion device for heat exchangers capable of accelerating the exchange speed, including heat exchange structures, heat dissipation structures, drive structures, drain pipes, smoke exhaust structures, propulsion structures and cleaning structures The propulsion structure used to clean the scale on the heat exchange structure is rotationally connected with the heat exchange structure, which facilitates the rotation between the propulsion structure and the heat exchange structure through the drive structure, effectively preventing the scale from sticking inside the heat exchange structure, At the same time, the heat exchange structure increases the heat exchange area, which greatly improves the heat exchange efficiency and quality. At the same time, the inside of the heat exchange structure is pressurized to make the water discharge effect better; the inside of the heat exchange structure is equipped with a cleaning structure. , it is convenient to clean the scale on the propulsion structure through the cleaning structure, so that the cleaning efficiency of the scale is better; the smoke exhaust structure is connected to the heat dissipation structure, which is convenient for utilizing the waste heat in the flue gas, so that the waste heat in the flue gas can preheat the water source, Greatly improved thermal energy utilization efficiency.

Methods and systems are provided for regulating exhaust flow from an exhaust turbine outlet downstream to an exhaust aftertreatment device inlet via a compact turbine outlet cone with adjustable convoluted vanes. Exhaust flow to the exhaust aftertreatment device is regulated based on a desired exhaust temperature and an exhaust flow rate at the aftertreatment device. During cold start conditions, the swirl vanes can be closed to focus the exhaust flow towards a portion of the aftertreatment device, while the position of the swirl vanes can be adjusted to direct the exhaust gas flow towards the aftertreatment device after the light-off temperature of the aftertreatment device is reached. Turbulence and homogenization are introduced into the exhaust stream of the aftertreatment device.

The water pump volute comprises an upper shell body and a lower shell body, the upper shell body is provided with a first containing cavity used for installing the upper portion of a first power component, and the upper portion of the lower shell body is provided with a second containing cavity used for installing the lower portion of the first power component. The side lower portion of the lower shell is provided with a third containing cavity used for installing a second power component, the bottom of the lower shell is provided with a second water inlet allowing water to enter the third containing cavity, and the side of the lower shell is provided with a water outlet allowing water to be output from the third containing cavity. The second containing cavity and the first containing cavity supply water to the bottom in a spraying mode, the third containing cavity supplies water to the top and / or the middle in a spraying mode, power of two paths of water flow is independently supplied by corresponding pumps, the lift and the water flow of each path of water flow are improved, and the cleaning effect is improved. And the molded line corresponding to the third accommodating cavity is formed by fitting a curve passing through at least four points, so that the third accommodating cavity forms a flow channel structure which is gradually expanded along the water flow flowing direction, the pressure of discharged water is favorably increased, the lift is improved, and the requirement of high-position water flow conveying is met.

The present invention relates to the field of charging pile devices, specifically a new energy charging pile with an automatic cleaning function, including a charging pile body, a retracting structure, a storage structure, a guiding structure, a cleaning structure and a boosting structure; the guiding structure is in conflict with The supercharging structure used for supercharging inside the charging pile body; the end of the supercharging structure is set inside the storage structure, and the storage structure for storing disinfectant is fixed on the charging pile body; The cleaning structure of the disinfectant, and the supercharging structure is connected to the cleaning structure, so that when the guiding structure interferes with the wheels and the guiding structure is reset, the guiding structure drives the supercharging structure to slide between the charging pile body, and the supercharging structure resets the storage structure. The internal disinfectant is pressurized, so that the disinfectant is sprayed on the charging gun from the cleaning structure, which facilitates the disinfection of the charging gun, and effectively prevents cross-infection caused by different users touching the charging gun, greatly improving the safety performance of use.

The disclosure provides a system and method for water meter detection and boosting, including a booster cylinder and a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, and a booster cylinder that are serially connected through pipelines. It includes a connected first cylinder and a second cylinder, and the inner diameter of the second cylinder is smaller than that of the first cylinder, and a pressure detection element is provided on the communication pipeline between the water outlet port of the second cylinder and the water inlet port of the water meter to be checked; The pipeline between the first solenoid valve and the second solenoid valve communicates with the drain port, the pipeline between the second solenoid valve and the third solenoid valve communicates with the boost port, and the pipeline between the third solenoid valve and the fourth solenoid valve The pipeline of the system is connected with the water inlet port of the system, and the pipeline between the first solenoid valve and the fourth solenoid valve is connected with the pressure relief port; this disclosure achieves better The effect of boosting and maintaining pressure does not require an additional hydraulic system or electric system, which improves the accuracy of water meter detection.

The invention relates to a surgical instrument, in particular to an improved pourable pedicle screw. At least one axial groove (5) communicated with a seepage hole (4) is arranged on the outer surface of a screw body (1) of the pedicle screw. The improved pourable pedicle screw is characterized in that an exhaust hole (6) enabling a thread groove (9) to be communicated with the air is arranged on the periphery of a blind hole (3) and on a screw end (2) of the pedicle screw, and a flow adjusting valve is arranged in an outlet of the exhaust hole(6). The flow adjusting valve is formed by an outlet portion (8) of the exhaust hole (6) and a valve core (7) matched with the outlet portion (8), wherein the valve core (7) is formed by a cylinder and a cone with the gradually-reduced section in sequence from the port of the outlet portion (8) of the exhaust hole (6), and the cylinder is in threaded connection with the outlet portion (8) of the exhaust hole (6). The improved pourable pedicle screw has the advantages of achieving fully pouring and having good fixing effect.

The invention discloses an aluminum alloy door and window with a drainage mechanism, and relates to the technical field of doors and windows, the aluminum alloy door and window comprises a window body and a water storage device, the bottom of the water storage device is fixedly connected with the outer wall of the window body, and the water storage device comprises a water flow collecting hopper, a discharge pipe, a baffle and an airflow change cavity. The bottom of the water flow collecting hopper is in through connection with the top of a discharging pipe, the bottom of a baffle is in through connection with the outer wall of the discharging pipe, the bottom of an airflow changing cavity is fixedly connected with the bottom of the inner wall of a water storage device, and a sealing block is arranged on the inner wall of the discharging pipe. The water storage device and the water drainage device are combined, rainwater detained in the window body is conveniently drained by collecting quantitative water and utilizing certain air pressure generated by the gravity of the water, the situation that the rainwater detained in gaps in the window body for a long time is difficult to clean is avoided, the water storage device provides power for the water drainage device, and the water drainage device is convenient to clean. Rainwater remaining in window gaps can be drained in time.

The invention relates to a semi-contact graphite sealing device. The semi-contact graphite sealing device comprises a friction moving ring and a graphite fixed ring, the inner ring surface of the friction moving ring is in clearance fit with a rotary shaft, and the friction end surface of the friction moving ring makes contact with the end surface of the graphite fixed ring; a plurality of spiralshallow slots which are of the same structure are uniformly distributed in the friction end surface, all the spiral shallow slots extend outwards along the friction end surface from the junction between the friction end surface and the inner ring surface so that the spiral shallow slots can form openings on the inner ring surface, the friction end surface is provided with an annular pressure stabilizing ring slot, and the tail ends of the spiral shallow slots communicate with the pressure stabilizing ring slot so that the tail ends of the spiral shallow slots can communicate with one another;and the pressure stabilizing ring slot and the friction moving ring are coaxially arranged, the inner diameter of the pressure stabilizing ring slot is larger than that of the graphite fixed ring, theouter diameter of the pressure stabilizing ring slot is smaller than that of the graphite fixed ring so that the end surface of the graphite fixed ring can completely cover the pressure stabilizing ring slot when the friction moving ring and the graphite fixed ring are assembled, and meanwhile, the tails of the spiral shallow slots are covered by the end surface of the graphite fixed ring.

The invention relates to a split type vibration and noise reduction air pump. The split type vibration and noise reduction air pump includes a shell base, a shell cover, a vibration and noise reduction cavity, a reciprocating vibration and noise reduction air passage, a pump body and a plurality of extraction and exhaust devices, wherein the shell base is provided with an air inlet hole and an airoutlet hole, the shell cover is detachably connected with the shell base, the vibration and noise reduction cavity is formed in the upper end of the shell base, the reciprocating vibration and noisereduction air passage is arranged on the rear side of the vibration and noise reduction cavity and communicates with the air outlet hole, and the pump body blocks the upper ends of the vibration and noise reduction cavity and the reciprocating vibration and noise reduction air passage and is detachably connected with the shell base; and each extraction and exhaust device includes an air inlet passage, an air outlet passage, an air chamber seat, an air inlet check valve, an air outlet check valve, a leather cup, a swing arm and a swing arm driving device, wherein the air inlet passage is arranged in the pump body and communicates with the air inlet hole, the air outlet passage communicates with the vibration and noise reduction cavity, the air chamber seat is provided with an air chamber, the inner end of the air chamber seat is detachably connected with the pump body, the air inlet check valve is arranged between the air inlet passage and the air chamber, the air outlet check valve isarranged between the air chamber and the air outlet passage, the opening end of the leather cup is detachably connected with the outer end of the air chamber seat, and the swing arm is connected withthe sealing end of the leather cup. When the split type vibration and noise reduction air pump is used, vibration noise is small, and installation and disassembly are convenient.