29results about How to "Promote reflux" patented technology

This utility model relates to the field of hydraulic oil tank technology, specifically a hydraulic oil tank for a marine EHA power unit, comprising a tank body, an inlet, and a return outlet. The inlet is located at the top of the tank body, and a vent is located on one side of the inlet. A return outlet is located on one side of the top of the tank body. A filter screen limiting groove is provided in the return outlet, and a metal filter screen is installed in the filter screen limiting groove by screws. A sealing cap is installed at one end of the return outlet by clamping bolts. A return pipe is connected to one side of the sealing cap, and a sealing valve B is provided on the return pipe. An oil pump is installed on one side of the bottom of the tank body via a mounting base. The hydraulic oil tank for a marine EHA power unit facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen.

This invention belongs to the field of medical device technology and discloses a foot pressure relief device for diabetic foot. It includes a base, a pressure relief plate and a motor connected to the base, and a foot pedal and a transmission assembly connected to the pressure relief plate. The transmission assembly includes a crank, a first connecting rod, and a sliding seat. The crank is fixedly connected to the output shaft of the motor, and the sliding seat is connected to the pressure relief plate. The two ends of the first connecting rod are respectively connected to the crank and the sliding seat. The sliding seat is connected to a foot rolling shaft and a second connecting rod, and the second connecting rod is connected to a foot massage roller. A buffer spring is provided between the pressure relief plate and the base. The foot pedal has a through groove, and the foot rolling shaft is connected to a foot massage roller. This invention utilizes the foot rolling shaft / foot massage roller and the foot massage roller to simultaneously perform rolling massage on the sole and instep of the foot. The periodic oscillation of the pressure relief plate causes the heel and toes to alternately rise, resulting in good pressure relief for the foot.

The application relates to the technical field of machining equipment, in particular to a deep drilling device for elbow curved rods, which comprises an assembling shell, a hydraulic cylinder is embedded at the top end of the assembling shell, a pressing mechanism is connected to the power output end of the hydraulic cylinder, and a sliding groove is arranged on the abutting surface of the assembling shell and the pressing mechanism. The winding equipment body winds and unwinds the cable, so that the electromagnet connected with the connector through the thread is penetrated into the rod piece. When the hydraulic rod drives the inclined block to press and bend the rod piece, the bearing capacity is improved through the support of the electromagnet, so that the excessive pressing and bending of the rod piece is avoided, the deformation of the rod piece is avoided, the product quality is affected, the electromagnet is connected with the connector through the thread, the electromagnet is convenient to disassemble and assemble, the electromagnet with the diameter size suitable for the rod piece is replaced, the applicability is improved, the rod piece is conveniently attracted after the electromagnet is electrified through the cable, the sliding condition is avoided, the pressing and bending quality is affected, when the electromagnet is not worked, the connector is tightened in the connecting hole through the winding equipment body, and the rod piece is conveniently placed and corresponds to the electromagnet.

The utility model relates to a kind of exhaust structure of motor gear box for vehicle, including exhaust valve in gear box, labyrinth, backflow plate and several baffle, backflow groove is formed between backflow plate and gear box inner wall, baffle makes several intercommunicating chambers in gear box, chamber is between labyrinth and backflow groove, chamber is communicated with backflow groove, chamber is also communicated with labyrinth, exhaust valve is communicated with labyrinth, backflow groove is equipped with backflow port with gear box interior communication in both ends, oil liquid into chamber can flow through backflow groove and return in gear box, after the air pressure in gear box rises, gas is discharged from exhaust valve via labyrinth.The utility model is by being equipped with baffle, reduce the oil liquid that splashes when gear rotates enters labyrinth, also reduce the oil liquid reaching labyrinth entrance, effectively avoid the oil leakage situation of exhaust valve, oil liquid in chamber flows through backflow groove and returns in gear box, reach the effect of oil liquid backflow;Gas can avoid gear box oil leakage after being discharged.

The utility model relates to the technical field of acupuncture equipment, and provides an acupuncture needle with sticking and pricking performance, which comprises an acupuncture needle handle, an acupuncture needle body, a fixer, kinesio and isolation paper, the isolation paper is stuck below the kinesio, the kinesio and the kinesio are arranged on the kinesio in a penetrating manner, and the acupuncture needle handle is connected with the fixer. The filiform needle handle and the filiform needle body are integrally formed, the fixator is arranged at the combined part of the filiform needle handle and the filiform needle body, the size of the filiform needle body is 0.25 * 40mm, and the fixator is a soft fixing band piece with a changeable shape. After acupuncture acupoint selection and needle insertion of a fixed filiform needle body are performed, a fixator and isolation paper are removed, kinesio tape is downwards fixed to acupoint skin along the needle body, then the kinesio tape is properly pulled, and local tissue is fixed in an attached and pricked mode, so that the acupoint stimulation effect is achieved, the local tissue is fixed, and the acupoint stimulation effect is achieved. Lymphatic reflux is improved, so that swelling and pain are relieved, and the treatment effect is improved.

The utility model provides a kind of oxygen concentrator oxygen concentration detection device, belong to oxygen detection technical field, including shunt box;Flow resistance box is equipped on the shunt box one side outer wall;Gear pump is equipped on the flow resistance box upper side outer wall away from shunt box;Detection tube is equipped on the gear pump upper side outer wall away from flow resistance box;Oxygen concentration detector is embedded and fixed in the top of detection tube;Airflow flow direction switching assembly is equipped on the shunt box;Airflow instantaneous flow resistance component is equipped on the flow resistance box;The utility model switches the flow direction of oxygen meeting requirements and abnormal oxygen by airflow flow direction switching assembly, not only convenient for oxygen meeting requirements backflow to oxygen concentrator, but also can use the delivery of gear pump and the storage of airflow temporary storage box, so that oxygen pressurized backflow, oxygen is directly used after detection, and abnormal oxygen detected can also be directly discharged.

The application provides a floating disc, comprising a first structure part and a second structure part which are integrally connected, the first structure part and the second structure part are respectively arched in directions away from each other, so that the outer surfaces of the first structure part and the second structure part form cambered surfaces, and the inner surfaces of the first structure part and the second structure part enclose a closed cavity. The floating disc provided by the application has a structure with a closed cavity, can float on the water surface, plays a shielding role on the water surface, and further avoids sunlight from irradiating the water surface to accelerate the evaporation rate of water on the water surface, is beneficial to reducing the water evaporation rate, reducing water loss, and the floating setting of the floating disc on the water surface can also adsorb the evaporated water vapor, is beneficial to condensation and backflow of the water vapor to the water surface, avoids loss of the water vapor, further reduces the loss of water, and is beneficial to reducing the water loss amount.

The application provides an engine crankcase ventilation system, comprising a cylinder head, a cylinder head exhaust chamber of the cylinder head being communicated with a cylinder head exhaust chamber of the crankcase through a cylinder head internal oil gas return channel, a first crankcase internal oil gas return channel, a second crankcase internal oil gas return channel, a third crankcase internal oil gas return channel, a fourth crankcase internal oil gas return channel, an oil pan exhaust chamber of an oil pan and the cylinder head exhaust chamber; the cylinder head exhaust chamber is communicated with a transmission case exhaust chamber of a transmission case, a crankcase longitudinal separation channel and a flywheel housing upper horizontal oil gas channel at a free end; the cylinder head exhaust chamber is communicated with a flywheel housing exhaust chamber of a flywheel housing, a flywheel housing internal vertical oil gas channel, a flywheel housing upper horizontal oil gas channel, a breather and a flywheel housing oil return channel at a transmission end; and the breather oil return channel is communicated with the oil pan exhaust chamber. The engine crankcase ventilation system effectively reduces breather separation pressure, reduces oil consumption and air pollution.

The utility model provides a leg blood activating exercise device for fracture rehabilitation. The leg blood activating exercise device for fracture rehabilitation comprises a bed body, a first moving plate and a second moving plate are arranged at the top of the bed body, a second screw rod and a third screw rod are rotationally installed in the first moving plate and the second moving plate correspondingly, and the ends, close to each other, of the second screw rod and the third screw rod are fixedly connected; second servo motors are fixedly installed in the first moving plate and the second moving plate correspondingly, output shafts of the two second servo motors are fixedly connected with one ends of the two second screws correspondingly, and the outer sides of the second screws and the outer sides of the third screws are in threaded connection with moving connecting bases correspondingly. The leg blood activating exercise device for fracture rehabilitation has the advantages of being convenient to use, capable of conforming to the angle change of the leg and easy to operate.

The application discloses a bogie with four-rail return flow device and a railway vehicle, the bogie comprising a cross beam and side beams arranged at both ends of the cross beam, the side beams comprising upper cover plates and lower cover plates arranged at intervals, inner and outer vertical plates and reinforcing rib plates being connected between the upper cover plates and the lower cover plates, the upper cover plates and the lower cover plates extending towards the cross beam and forming a box structure with the vertical plates, two out-of-plane surfaces of the box structure and the inner side surfaces of the side beams being each provided with a brake hanger forging to form a brake hanger, and the mounting block being provided with the four-rail return flow device, the four-rail return flow device being located within the vehicle outline limit, the four-rail return flow device comprising a flat shell and a return flow slider for slidingly connecting four rails, the return flow slider being connected with a return flow cable, the inside of the shell being provided with a control circuit and a pneumatic driving assembly, the pneumatic driving assembly being connected with the return flow slider, and the control circuit being used for sending a control signal to the pneumatic driving assembly to drive the pneumatic driving assembly to drive the return flow slider to be separated from or contacted with the four rails.

The present disclosure provides a gravity-assisted heat dissipation device, comprising an evaporator, a horizontal pipe, a vertical pipe and a condenser; the evaporator is arranged above and in contact with a component to be cooled, so as to vaporize working medium in the evaporator by using heat of the component to be cooled; an outlet of the evaporator is connected with a first connecting end of the horizontal pipe; a second connecting end of the horizontal pipe is connected with a first connecting end of the vertical pipe; the horizontal pipe is used for transmitting working medium; the distance between the first connecting end of the horizontal pipe and a horizontal plane is less than the distance between the second connecting end of the horizontal pipe and the horizontal plane; a second connecting end of the vertical pipe is connected with a bottom of the condenser; the vertical pipe is used for transmitting working medium; the distance between the second connecting end of the vertical pipe and the horizontal plane is greater than the distance between the first connecting end of the vertical pipe and the horizontal plane; and the condenser is used for liquefying working medium in a vaporized state.

The utility model discloses an ozone water generating device for optimizing the proportion of inlet and outlet water, which comprises a top cover, a flow guide ring, a bottom cover, a motor, an impeller and a partition plate, the flow guide ring is provided with a plurality of via holes and is clamped between the top cover and the bottom cover, and the partition plate is fixedly covered on the bottom cover to form a motor cavity. The motor is mounted in the motor cavity, and an output shaft of the motor penetrates above the partition plate and is connected with the impeller; a water inlet channel is formed between the water distribution plate and the top cover in a matched mode, a water outlet channel is formed between the water distribution plate and the partition plate in a matched mode, and a communicating opening is formed in the position, corresponding to the impeller, of the water distribution plate; the water diversion plate divides the via hole in the flow guide ring into a water inlet hole directly communicated with the water inlet channel and a water outlet hole directly communicated with the water outlet channel, and the proportion of the water inlet hole to the water outlet hole in the flow guide ring is 3: 1. According to the utility model, the water distribution plate is used for controlling the proportion of the water inlet and the water outlet in the flow guide ring to optimize water inlet and water outlet, so that backflow is accelerated, the pressure in the water outlet channel is increased, and the concentration of generated ozone water can be effectively improved.

The utility model relates to a smokeless moxibustion device with controllable smoke volume, which is applied to the technical field of moxibustion, and is characterized in that smoke is conveyed into a purification box by driving an exhaust fan, then a water pump is started to pump water in a water storage box out, the water is sprayed out from a plurality of atomizing nozzles to form a water curtain, and the smoke is purified by the flushing of the water curtain; the water sprayed into the purification box flows back into the water storage box through a leakage groove, recycling is facilitated, and water resources are saved; a worm can be made to drive a turbine to rotate by rotating a handle, so that an adjusting support can drive the moxibustion instrument to rotate, and the angle of the moxibustion instrument can be adjusted conveniently; and the flexibility is improved.

The invention discloses a long-path tank body breathing channel capable of preventing oil mist from escaping, which is applied to the technical field of power-assisted steering, a spiral pipeline made of a high-elasticity rubber material is adopted, discharge promotion treatment of residual oil liquid in the spiral pipeline is realized by utilizing staged stretching of the spiral pipeline, and a small amount of oil liquid which is difficult to flow back is prevented from entering the spiral pipeline. The distance between the follower and the fixed part is controlled to change through the electromagnetic block, the upper part and the lower part of the pipeline are sequentially stretched after exhausting is finished every time, the inclination of the pipeline is changed to promote residual oil to flow back, then the spiral pipeline recovers to the original shape through self-resilience, and therefore the pipeline is kept unobstructed. In addition, the tail end of the spiral pipeline is connected with a discharge pipeline through an adapter pipe, air flow pushes a floating plate to move upwards during exhaust, the floating plate falls down after exhaust is finished, scraping blocks get close to each other under the action of constraint springs, oil accumulated on the surface of a waterproof breathable plate is scraped, and oil backflow is promoted while blockage is avoided.

The utility model relates to the technical field of sports equipment, and discloses a binding band device and a protective tool with the binding band device, the binding band device comprises a flexible binding band body, two ends of the flexible binding band body are respectively connected with a first connector and a second connector, and the second connector is detachably connected to the protective tool to which the flexible binding band is applied. The flexible bandage can be used as an expansion function part to be fixed on the outer side of the protective tool, can form a double locking mechanism with the protective tool on the bottom layer, exerts directional pressure on corresponding positions (such as the periphery of patella and the attachment point of achilles tendon) in strenuous exercise or complex actions, effectively limits relative sliding of the protective tool and limbs, improves dynamic protection efficiency, and is safe and reliable. And the secondary injury risk is reduced.

This invention discloses a non-insulated frequency-shifting track circuit and its automatic blocking insulating joint. The non-insulated frequency-shifting automatic blocking insulating joint includes a resonant unit, a first traction balancing unit, and a second traction balancing unit. The resonant unit, the first traction balancing unit, and the second traction balancing unit are connected in parallel in the track circuit between two adjacent sections. The first traction balancing unit includes a second capacitor and a second inductor connected in series, and the second traction balancing unit includes a third capacitor and a third inductor connected in series. In this solution, the resonant unit prevents the frequency-shifting signal from crossing zones in adjacent track circuit sections, and the traction balancing units balance the traction return current between the two rails. Furthermore, the use of two traction balancing units further optimizes the traction return current balancing function. This solution also features a simple structure, significant effect, and ease of promotion.

This utility model relates to the technical field of edible oil storage, and in particular to a novel sealing structure for flaxseed-olive blended oil bottles. It accelerates the reflux of residual oil, avoids oil residue, prevents oil from contacting the outside air, and ensures the safety of oil use. It includes a bottle mouth, a bottle cap, an oil outlet plate, a sealing component, a connecting component, and a scraping component. An oil outlet plate is installed inside the bottle mouth, and multiple oil outlet grooves are opened on the oil outlet plate. The middle part of the oil outlet plate is connected to the bottle cap through the connecting component. A scraping component is installed above the oil outlet plate and is connected to the connecting component.

This invention relates to a repair device for water accumulation inside a sealed electrical device in a vehicle, belonging to the field of automotive repair. It includes: a constant-temperature hot air blowing mechanism, a return air humidity monitoring mechanism, and a vent plug adapter assembly. The two ends of the vent plug adapter assembly are connected to the vent plug and the return air humidity monitoring mechanism, respectively. The output end of the constant-temperature hot air blowing mechanism passes sequentially through the return air humidity monitoring mechanism, the vent plug adapter assembly, and the vent plug. A first gap is formed between the vent plug adapter assembly and the outer wall of the output end of the constant-temperature hot air blowing mechanism, and a second gap is formed between the return air humidity monitoring mechanism and the outer wall of the output end of the constant-temperature hot air blowing mechanism. The first gap and the second gap communicate to form a return air channel. This invention, through the return air channel, facilitates the directional discharge of moisture, thereby providing a basis for judging the drying endpoint, avoiding drying dead zones and preventing moisture from being blown deep into the cavity, thus aggravating the malfunction.

The utility model discloses a multi-cavity mechanical flow dividing device for thrombus prevention after a lower limb operation, and belongs to the technical field of thrombus prevention after the lower limb operation. The device comprises a cover body part, a mechanical gas distribution mechanism and a power device. The mechanical gas distribution mechanism is located at the bottom end of the cover body part, the power device is installed below the mechanical gas distribution mechanism, and the power device, the mechanical gas distribution mechanism and the cover body part are tightly connected through the elastic sealing connecting part. And the power device drives the cover body part to rotate, so that the gas inlet of the mechanical gas distribution mechanism is connected with an external gas source, and gas distribution and output are realized. The human body air bags are sequentially inflated with air, circulating pressure is formed from the telecentric end to the proximal end, backflow of venous blood and lymph is promoted, and deep venous thrombosis is prevented. By optimizing the mechanical structure, simplifying the sealing design and increasing the gas flow, the inflation efficiency and the sealing performance are remarkably improved, meanwhile, the production cost is reduced, and the device is suitable for being used in medical institutions and families.

This invention discloses a traditional Chinese medicine composition for improving otitis media, belonging to the field of traditional Chinese medicine health care technology. Addressing the shortcomings of Western medicine treatments for otitis media, which often lead to microcirculatory abnormalities and recurring symptoms, and the limitations of traditional Chinese medicine's reliance on bitter and cold herbs to block ear orifices and treat only the symptoms without addressing the root cause, this invention is based on a precise formulation of the core pathogenesis of liver and gallbladder microcirculatory disorders and gallbladder meridian stagnation and heat disturbing the ear orifices. The core ingredients of this composition are lotus leaf, angelica dahurica, jujube seed, gardenia, bergamot, and platycodon, with a scientifically reasonable ratio and mild medicinal properties. In the formula, bergamot acts as the principal ingredient to soothe the liver and gallbladder; lotus leaf and gardenia act as assistant ingredients to clear heat and promote diuresis; angelica dahurica opens the orifices and drains pus; jujube seed relieves spasms and calms the mind; and platycodon acts as the guiding ingredient to carry the medicine upwards and relax blood vessels. The synergistic effect of these herbs counteracts the vasoconstrictive side effects of bitter and cold herbs and Western medicine. This invention can improve liver and gallbladder microcirculation and inhibit the release of inflammatory factors, fundamentally resolving symptoms such as ear fullness, ear pain, and middle ear effusion caused by acute and chronic otitis media, while also improving problems such as bitter taste in the mouth and insomnia caused by liver and gallbladder stagnation and heat. This composition has significant therapeutic effects, a low recurrence rate, and no toxic side effects. It can be formulated into various preparations to suit long-term conditioning for various populations, thus making up for the technical shortcomings of existing treatment options.

The utility model discloses an evaporation reflux device for preparing a bird repellent, and relates to the technical field of evaporation reflux devices. The device comprises a heating box, wherein a feeding and discharging assembly, a condensation assembly, a scraping assembly, a transmission assembly and a stirring assembly are respectively arranged on the heating box; the interior of the feeding and discharging assembly communicates with the interior of the heating box, so that the feeding and discharging assembly adds the raw materials into or discharges the raw materials out of the heating box; raw materials in the heating box are heated by starting the heating device, steam generated in the heating process can enter the condensation assembly and is condensed into a liquid state in the condensation assembly, and the scraping assembly can move up and down by starting the scraping assembly, so that the raw materials are scraped. And liquid raw materials attached to the inner wall of the condensation assembly can be conveniently scraped into the heating box, and condensed raw materials attached to the inner wall of the condensation assembly can conveniently flow back into the heating box, so that the normal internal proportioning of the raw materials is ensured, and the production quality of the bird repellent is stabilized.

This application relates to the field of medical devices, and more particularly to an aortic valve annulus repair system, including a delivery device and an annulus repair device. The annulus repair device includes a repair ring, three clamping and locking devices, a repair cord, and a locking device. The repair cord is connected to each clamping and locking device. The delivery device includes a control catheter and an adjustment control element. The control catheter is used to connect to the clamping and locking devices, and the adjustment control element is used to connect to the locking device. By operating the control catheter, the clamping and locking devices capture and anchor the leaflet tissue at the leaflet junction. The locking device is used to be positioned in the central region of the aortic valve and is sleeved around the periphery of the repair cord. In this invention, the clamping and locking devices capture and anchor the leaflet tissue at the junction, causing the leaflet junction to close. Combined with the pulling action of the repair cord, the annulus circumference is effectively reduced, achieving a dual repair effect on the valve and effectively improving the aortic valve regurgitation problem.

The utility model discloses a knitted garment which comprises a relatively high-temperature and high-humidity area which is easy to form in the movement of a human body, and the high-temperature and high-humidity area is made of breathable antibacterial absorbing and discharging fabric; the low-temperature and high-humidity area is made of moisture-absorbing and warm-keeping fabric; the low-temperature and low-humidity area is made of a warm-keeping fabric; in the high-temperature and low-humidity area, except for the lower abdomen position of the female, the fabric of the high-temperature and low-humidity area should be made smooth and thin as much as possible so as to meet the comfort requirement of the product; and a targeted antibacterial and deodorant area. Partition functional design is arranged to accurately match with heat and humidity distribution characteristics of a human body, gradient hook-and-loop fasteners and waist stabilizing pieces are arranged at key exercise supporting portions, dynamic muscle supporting and blood flow optimization are achieved through multi-level pressure adjustment, the problem that traditional clothes are single in function and limited is solved, and the health care effect of the clothes is improved. Damp-heat dynamic balance, local pressure regulation and control and static wearing comfort in the motion state are considered, and the comprehensive performance of the garment is remarkably improved.

The utility model discloses a microcatheter capable of preventing backflow, which at least comprises a main body tube, the main body tube is of a multi-layer structure, and one layer of structure of the main body tube forms a closable structure at a far-end port of the main body tube; the main body tube is of a three-layer structure, namely the inner layer, the middle layer and the outer layer, the main body tube is provided with the tube cavity capable of containing embolism agents and pushing the guide wire, the outlet at the far end of the tube cavity is of a closable structure, the problem of backflow of embolism materials, contrast agents or medicine solutions in an operation can be effectively solved through the structure, and the injection efficiency can be improved. The main body tube is of a reducing structure, and the super-selectivity of the micro-catheter can be improved.

The utility model discloses a cat litter basin capable of preventing cat litter and cat urine from leaking, which relates to the technical field of cat litter basins and comprises a base, a roller component is arranged inside the top end of the base, a three-proofing pad component is fixedly mounted at the bottom of the inner side of the roller component, and a filter component is fixedly mounted at the top of the inner side of the roller component. The roller assembly comprises a rotating roller, a plurality of screw holes are formed in the bottom of the rotating roller, an air hole is formed in the middle of the bottom end of the rotating roller, the three-proofing pad assembly comprises a fixing ring, the fixing ring is arranged at the bottom of the inner side of the rotating roller, the fixing ring is arranged at the top of the screw holes, and screw holes are formed in the bottom of the fixing ring. A sealing ring is arranged between the fixing ring and the rotating roller, three-proofing cloth is fixedly installed in the middle of the fixing ring, and the edge of the three-proofing cloth and the fixing ring are fixed through a hot pressing technology. The cat urine and cat litter leakage prevention device can effectively prevent cat urine and cat litter from leaking, and has high practical value.

This utility model discloses a liquid dispensing device and a cleaning equipment, belonging to the technical field of cleaning equipment. The liquid dispensing device includes a liquid bottle; a cover plate, with the liquid bottle inverted on the cover plate; a storage tank connected to the cover plate, the storage tank having a second chamber; a first sealing element fitted around the outer periphery of the cover plate, abutting against the liquid bottle; a second sealing element fitted around the outer periphery of the cover plate, abutting against the storage tank; the first and second sealing elements form a closed chamber with the liquid bottle, cover plate, and storage tank; a detection element connected to the second chamber via a connecting assembly, the detection element obtaining the liquid level in the liquid bottle by monitoring the gas pressure in the second chamber, the connecting assembly including a diaphragm that prevents liquid from entering the detection element. This device can prevent liquid from overflowing from the liquid bottle due to increased external temperature, thus avoiding dirt accumulation on the dispensing device platform. Simultaneously, it can monitor the liquid level in the bottle in real time, enabling accurate dispensing and ensuring the cleaning effect of the cleaning equipment.

This utility model relates to an overflow prevention structure for a gate well platform. It is applicable to the field of water conservancy and hydropower engineering technology. The technical solution adopted by this utility model is: an overflow prevention structure for a gate well platform, wherein a gate well is provided on the gate well platform, a crane is installed on the gate well platform, and a gate is connected to the crane. The gate can extend into the water conveyance channel through the gate well. It includes: a enclosure arranged on the gate well platform, surrounding the gate well, with an overflow outlet at the bottom of the enclosure; and a drainage ditch set on the gate well platform, positioned corresponding to the overflow outlet, and connected to the drainage system. When there is a large volume of water in the water conveyance channel, and some water overflows from the gate well platform, the overflowing water can overflow through the overflow outlet on the enclosure into the drainage ditch and be discharged through the drainage ditch, effectively preventing water overflow from affecting the equipment on the gate well platform.

The utility model discloses a kind of gas-liquid mixed transmission synchronous self-priming pump structure, belong to self-priming pump technical field, comprising: centrifugal pump, its front end is provided with siphon tank, several steady flow baffle are provided in the siphon tank, exhaust port and water filling port are provided on the siphon tank, the siphon tank bottom is provided with drainage tube, liquid discharge pipe and liquid delivery pipe, the liquid delivery pipe is connected in the centrifugal pump water inlet;And gas-liquid separation chamber, it is connected at the centrifugal pump outlet.The utility model is by being provided with siphon tank, so that every time before starting does not need special water diversion operation, and also can achieve pump and simultaneously realize to send medium, ordinary self-priming pump after starting pump can only empty air and not self-priming time of water.

This utility model discloses a vent valve, which includes a main body, a cap, a support frame, and a first oil-blocking component. A filter element is housed inside the main body; the support frame is fixed within the main body, and a vent membrane is connected to the main body via ultrasonic welding; the first oil-blocking component is disposed in a through-hole and located on the side away from the cap, with the filter element positioned between the first oil-blocking component and the support frame. The first oil-blocking component includes two first blocks, which are spaced apart relative to each other in the through-hole along its axial direction. The two first blocks gradually shift towards the axis of the through-hole along its axial direction away from the cap, and are arranged in a semi-circular shape. The two inclined first blocks in the first oil-blocking component effectively prevent the upward flow of liquid within the equipment and facilitate the return of liquid splashed to the top back into the equipment. Therefore, the vent valve can meet the usage requirements of equipment with higher demands for dust and water resistance, venting and pressure relief, and oil prevention.