2929 results about "Ball valve" patented technology

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member. The pin member is adapted to be guided by a guide structure and compress the resilient member to separate from the engagement hole of the matching connector.

The invention belongs to the technical field of valves, and particularly discloses a self-pressure-control cut-off ball valve which comprises a valve shell, a sealing cavity is formed in the middle of the interior of the valve shell, a spherical valve element is rotationally arranged in the middle of the inner wall of the sealing cavity in a sealed mode, the middle of the spherical valve element is in a through opening shape, and an indicating groove is formed in the bottom of the valve shell. When pressure in a pipeline rises, the transmission assembly can be triggered in the valve shell to work so that the spherical valve element can rotate, then the valve shell is opened and conducted, the transmission assembly can be further driven to work along with pressure rising, and when the maximum pressure value of the valve is reached, the transmission assembly can be driven to rotate, so that the transmission assembly can be driven to rotate. At the moment, the opening degree of the spherical valve element in the valve shell is in the maximum state, the limiting assembly is triggered to limit the transmission assembly at the moment, the situation that the spherical valve element continues to rotate, and consequently the opening degree is decreased is prevented, and opening and closing of the valve can be automatically adjusted according to changes of the pressure in the pipeline.

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member. The pin member obstructs the rotation of the control element unless it is in a set position.

The invention provides a low-torque hydraulic balance ball valve, which relates to the technical field of valves, and comprises a valve body, a circular cavity is arranged in the valve body, a rotating shaft is arranged on the valve body in a penetrating manner, a valve core is arranged in the circular cavity, the rotating shaft is connected with the valve core, the valve body is also provided with a connecting channel, and the inlet end of the valve body is connected with the circular cavity through the connecting channel in a penetrating manner; a connecting hole is formed in the valve element, the valve element is communicated with the circular cavity through the connecting hole, a driving rod is arranged in the connecting channel, a stable sealing device is further arranged in the valve body, the driving rod is used for driving the stable sealing device, and the stable sealing device is used for enhancing the sealing effect of the rotating shaft and the circular cavity. The stable sealing device is arranged, the sealing action and the hydraulic balance process are synchronously carried out, an additional power source is not needed, the sealing effect of the rotating shaft and the circular cavity is synchronously enhanced in the hydraulic balance process, and dual optimization of torque reduction and leakage prevention is achieved.

A novel ball valve on a diaphragm pump comprises a ball seat, a ball cage and a valve ball. The ball cage comprises a positioning ring, a supporting column, a connecting ring and a limiting ring. The four supporting columns are annularly arranged at intervals. The positioning ring, the supporting column, the connecting ring and the limiting ring are integrally formed. The end, away from the positioning ring, of the supporting column and the side, facing the valve ball, of the supporting column are provided with an inclined face part, the inclined face of the inclined face part faces the valve ball, and the spherical face of the valve ball abuts against the four inclined face parts. According to the novel ball valve on the diaphragm pump, a one-way channel of the valve ball is formed through the four supporting columns which are annularly arranged at intervals, and the maximum flow of a fluid medium can be guaranteed while movement of the valve ball is limited. And during assembly, the ball cage of the corresponding model can be selected according to the flow performance required by the pump, so that the simple and low-cost matching of the overall flow characteristic of the pump can be realized, and the main structure of the pump body or the ball valve does not need to be changed.

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member.

The invention discloses a quick-change type ball valve with double mechanical interlocking assemblies, and particularly relates to the technical field of fluid control equipment, the quick-change type ball valve comprises a first ball valve and a second ball valve, and the second ball valve is installed on the side face of the first ball valve through a buckle; the first ball valve comprises a first valve element, a first valve seat, a first ball valve handle, a marble, a first pin and a first connecting buckle, a circular hole is formed in the upper wall of the first valve seat, a horizontally-placed first rectangular fillet long plate is arranged above the first ball valve handle, and a second arc-shaped groove is formed in the fillet position; a vertically-placed first threaded long rod structure is installed below the first rectangular fillet long plate, the first threaded long rod structure of the first ball valve handle vertically penetrates through a first circular hole of the first valve seat, and the first threaded long rod structure is rotationally connected with the first circular hole of the first valve seat.

The utility model relates to an inverted metal sealing ball valve, which relates to the technical field of ball valve sealing, and comprises a valve body, a self-sealing end cover, a main valve seat, a main valve seat and a sealing cover, the bottom of the valve body is provided with a mounting port for mounting an integrated ball rod, the self-sealing end cover is used for sealing the mounting port, and the main valve seat is in sealing fit with the integrated ball rod; one end of the self-sealing end cover is in sealing fit with the main valve seat, the other end of the self-sealing end cover is in sealing fit with the auxiliary valve seat far away from the integrated ball rod, and a first disc spring is arranged at the contact position of the self-sealing end cover and the integrated ball rod. The integrated ball rod is arranged, so that the situation that a valve rod and a ball body of a traditional ball valve are not suitable for high-frequency operation occasions due to the fact that a flat tenon or square tenon connecting structure is adopted is avoided; by means of the valve, the reliability of opening or closing of the valve is guaranteed, and the sealing effect can be improved by arranging the first disc spring.

The interlocking ball valve comprises a valve body, a ball body used for opening and closing the valve is arranged in the valve body, a handle corresponding to the ball body is arranged on the valve body, the handle is used for driving the ball body to rotate to open and close the valve body, a buckle is arranged on the valve body, a clamping groove corresponding to the buckle in shape is further formed in the valve body, and the clamping groove is used for clamping the valve body. The valve body is provided with a buckle, the buckle can stretch into a buckle of another valve body to conduct rotary clamping, the valve body is further provided with a positioning column, the valve body is provided with a positioning groove corresponding to the positioning column, a positioning spring is arranged between the positioning column and the valve body, and the positioning spring pulls the positioning column to move towards the interior of the valve body. And the positioning column can be embedded into the positioning groove of another valve body. According to the interlocking ball valve, two interlocking ball valves can be connected for use, the ball valves can be quickly disassembled and assembled during use, the working condition that the ball valves need to be disassembled is adapted, and clamping connection between the valve bodies is ensured through cooperation of the buckles and the clamping connection grooves.

The invention discloses a pressurizing oxygen cabin pressure control method which comprises the following control steps: after an oxygen cabin door is completely closed, a compressor in a pressure control system is started along with linkage control to implement a pressurizing mode in an oxygen cabin body; in the process of pressurizing the inside of the oxygen cabin, three paths of electric ball valves in the air circulation system are started according to three pressure gears set and monitored by an oxygen cabin pressure control system to open the corresponding electric ball valves to release pressure; and when the pressure in the oxygen cabin exceeds the pressure gear in the set three-gear pressure, the corresponding gear electric ball valve is automatically started and opened to execute the pressure relief task, so that the oxygen cabin pressure in the oxygen cabin is kept in a safe and effective pressure level interval, the pressure control in the oxygen cabin is simple, convenient and effective, and the pressure control cost is low.

The invention provides an interlocking type ball valve assembly. The interlocking type ball valve assembly comprises two ball valve units. Each ball valve unit comprises a valve body, a valve core, a valve rod and a handle; the inner ends of the two valve bodies are inserted in a matched mode and sealed in the circumferential direction. The two oppositely-arranged outer walls of each valve body are provided with inserting blocks and two limiting blocks distributed at intervals respectively, a limiting groove is formed between the two limiting blocks, and the inserting block on each valve body is inserted into the limiting groove in the other valve body. Each ball valve unit further comprises a sliding piece, the sliding piece is horizontally connected with the valve body located on one side of the limiting block in a sliding mode, and an inverted buckling part is arranged at the outer end of the sliding piece; after the inner ends of the two valve bodies are in butt joint and the sliding piece is slid, the reverse buckling part is used for wrapping the two limiting blocks on the corresponding side and the outer side of the inserting block and locking the inserting block in the limiting groove. After the two internal ball valve units are connected in a butt joint mode, interlocking of the two ball valve units can be achieved.

The invention relates to the technical field of valve detection, and discloses a ball valve airtightness detection method and system. The method comprises the following steps: in a pressurization and pressure maintaining test, synchronously acquiring multi-channel pressure information flow, and constructing a three-dimensional pressure field dynamic evolution sequence reflecting a sealing interface pressure transmission process; time-frequency domain cross comparison is carried out on the sequence and a leakage signal simulation library, potential leakage characteristic signals are extracted, reverse tracing analysis of a leakage energy propagation path is carried out on the potential leakage characteristic signals, and therefore space coordinates and energy intensity of a suspected leakage source are determined. And finally, calculating an overall leakage state index, and generating a sealing state evaluation map and a maintenance operation sequence. According to the method, the transformation from single-point pressure monitoring to three-dimensional pressure field dynamic analysis is realized, the position of a leakage source can be accurately positioned, and the detection intuition and the maintenance pertinence are improved.

The invention discloses a high-pressure sealing ball valve for hydrogen, and relates to the technical field of ball valves, the high-pressure sealing ball valve comprises a first valve body and a second valve body, the first valve body and the second valve body are detachably and fixedly connected, and a sealing ring is arranged at the joint of the first valve body and the second valve body; the second valve body fixedly communicates with a valve seat, a valve rod is rotationally arranged in the valve seat, and a valve opening and closing mechanism is jointly installed between the first valve body and the second valve body. The valve has the advantages that pressure self-adaptive adjustment and dynamic adaptation to working condition fluctuation are achieved through opening, closing and sealing actions, excessive abrasion of components is avoided while sealing reliability is guaranteed, the instantaneous leakage risk of a traditional valve in the opening and closing stage is reduced, meanwhile, impact damage and operation resistance of the components are remarkably reduced by means of multiple buffering structures and friction optimization, and the service life of the valve is prolonged. The operation and maintenance convenience of equipment is improved, the service life is effectively prolonged, and the harsh working condition requirement of high-pressure hydrogen conveying is met.

The invention relates to a self-locking quick ball valve connector and a connector system, and relates to the technical field of connector connection, and the self-locking quick ball valve connector comprises a connector valve body, a valve element and a valve rod assembly. The connector valve body is provided with a connecting end, a control containing cavity, a self-locking hole and an interlocking hole. The valve rod assembly comprises a rotating part and a control part, the control part is arranged in the control containing cavity, and a self-locking groove is formed in the control part; the self-locking assembly comprises a self-locking rod piece and a self-locking spring which are located in the self-locking hole, and a self-locking ball located in the interlocking hole. The self-locking rod piece is provided with an unlocking ring groove and a self-locking structure; when the self-locking groove in the control part rotates to be right opposite to the interlocking hole, the self-locking structure drives the self-locking ball to be clamped into the self-locking groove, and locking is achieved. And during unlocking, the self-locking ball enters the unlocking ring groove, so that the self-locking ball is separated from the self-locking groove, and the locking is released. The method has the effect of improving the safety of connector connection.

The invention provides an integrated ball valve which comprises a valve body and an actuator, a ball body is arranged in the valve body, the actuator is in driving connection with the ball body through a valve rod, the integrated ball valve is characterized by further comprising an electromagnetic valve, a first piston cylinder and a second piston cylinder, a first piston is arranged in the first piston cylinder, and a second piston is arranged in the second piston cylinder. A first piston is arranged in the first piston cylinder, a second piston is arranged in the second piston cylinder, the first piston and the second piston are in meshed connection with the valve rod, and the electromagnetic valve is used for introducing medium pressure on the high-pressure side of the valve body into the first piston cylinder and / or the second piston cylinder so that the first piston cylinder and / or the second piston cylinder can act. The piston cylinder is arranged on the valve body, medium pressure is introduced, driving force is formed at the two ends of the piston through medium pressure difference, the driving force and the actuator are combined to drive the valve rod to achieve rapid opening and closing of the valve, and the problems that an actuator of an existing high-pressure working condition integrated ball valve is large in size and weight and long in opening and closing time are solved.

The invention discloses an injection molding method of a ball core of a ball valve, a ball valve injection molding method and the ball core of the ball valve.The injection molding method comprises the steps that an inner-layer ball body is formed through one-time injection molding, and the outer diameter of the inner-layer ball body is smaller than that of a standard ball core; and performing secondary injection molding on the outer-layer ball coat on the basis of the inner-layer ball body to obtain a standard ball core. According to the scheme, the ball core is obtained through the two-time injection molding process, the inner-layer ball body is cooled and shaped firstly, then the outer-layer ball coat is subjected to injection molding, and after the inner-layer ball body is shaped, even if the problem that the roundness is poor due to the influence of uncontrollable shrinkage characteristics of materials, the outer-layer ball coat subjected to two-time injection molding can be used for making up for the problem; as the thickness of the outer-layer ball coat is smaller than that of the whole ball core, even if the outer-layer ball coat shrinks after being cooled, the shrinkage degree is smaller, the influence on the roundness of the ball core is smaller, and the purpose of obtaining the ball core with higher outer surface roundness is achieved.

The invention belongs to the technical field of drainage equipment, and discloses an interventional puncture drainage device.The interventional puncture drainage device comprises a collecting bottle, negative pressure equipment, a self-adjusting assembly, a negative pressure tube and a drainage tube, the self-adjusting assembly comprises a base body, the base body is provided with a drainage cavity, a negative pressure adjusting cavity and a negative pressure cavity, the drainage cavity is provided with a liquid guide opening, and the negative pressure cavity is provided with an air guide opening; the base body is connected with a main shaft and a wedge-shaped valve body, the main shaft is connected with a turbine and a fixing rod, the fixing rod is connected with a connecting arm, the connecting arm is connected with a ball and a linkage piece, the linkage piece is connected with a sliding sleeve, the sliding sleeve is connected with a spring and a connecting rod, and the connecting rod is connected with a ball valve. According to the drainage device, the negative pressure can be automatically adjusted in real time according to the momentum of drainage liquid, the drainage efficiency is guaranteed, and accidental injuries caused by too large negative pressure to a patient are avoided; the whole device is simple in structure, low in cost, good in stability in the clinical use process, high in anti-interference capacity and convenient to popularize and apply clinically.

The invention discloses a steel pipe pile grouting system and a steel pipe pile construction method, and belongs to the field of underground engineering grouting. The grouting system comprises a slurry stirrer, a slurry discharging pool, a grouting pump, a ball valve, a grouting pipe, a fixing support and a steel pipe pile side post-grouting device. The ball valve is arranged at the top of the grouting pipe, and the grouting pipe is arranged on the inner wall of the steel pipe pile through the fixing support. The steel pipe pile side post-grouting device comprises an elbow, a breast board, a grouting device and a sealing cover. According to the steel pipe pile grouting system, grouting can be conducted on the side portion of the steel pipe pile through the steel pipe pile side post-grouting device, a cement reinforcing layer wrapping the steel pipe pile is formed, pile-soil gaps caused by vibration or the soil squeezing effect in construction are filled, existing pile defects are repaired, the pile bearing capacity is restored, the pile-soil contact area can be increased, and the construction efficiency is improved. And after the slurry is solidified, the side friction resistance can be greatly improved, and long-term sedimentation can be reduced.

The utility model discloses a small-scale test device for research on anaerobic fermentation of granular sludge. The small-scale test device comprises a fermentation bottle, a granular sludge feeding component, a granular sludge sampling component, an exhaust component and a stirring and mixing device, the granular sludge feeding and sampling component comprises a sample feeding pipe and a sampling pipe which penetrate through the sealing rubber plug of the fermentation bottle, the sample feeding pipe and the sampling pipe enter the fermentation liquid in the fermentation bottle, the feeding pipe is provided with a manual ball valve, and the sampling pipe is provided with a manual ball valve and a check valve. The exhaust component comprises an exhaust pipe, a manual ball valve and an air collecting bag, the exhaust port is connected with the air collecting bag, and a closed environment is kept. The stirring device comprises a stirring rotor and a magnetic stirrer which are arranged in the fermentation bottle, and fermentation liquor is kept uniform in the sampling process. According to the small-scale test device for the granular sludge anaerobic fermentation research, the difficulty in a granular sludge fermentation test can be solved, the device is simple to assemble, the sampling is uniform and sufficient, and the anaerobic environment is stable.

The invention discloses a ball valve easy to clean, and relates to the technical field of valves. Comprising a shell, a valve cavity, a valve body, a rotating wheel assembly, an upper connection flange, a lower connection flange and a sealing ring. The valve body is rotationally arranged in the valve cavity and controls on-off of fluid. The upper flange and the lower flange are detachably connected to the two ends of the shell respectively and form a sealed valve cavity together with the shell and the sealing ring. A rotating part is arranged at the bottom of the valve body and rotates in cooperation with an abrasion sleeve embedded in a lower connection flange, the abrasion resistance of the abrasion sleeve is lower than that of the valve body, and core components of the valve body are preferentially abraded and protected. A conductive block is embedded in the abrasion sleeve, the abrasion sleeve, the valve body, the rotating rod, the conductive rod and the reminding element form a detection circuit, when abrasion reaches a preset limit, the circuit is switched on, and an alarm is triggered to prompt replacement. The structure is convenient to disassemble and clean, realizes abrasion early warning, improves the maintenance efficiency and prolongs the service life of the valve.

The invention relates to the technical field of intelligent monitoring of industrial valves, in particular to an intelligent monitoring and state evaluation system for sealing wear of a semi-ball valve, which comprises the following steps of: dividing action stages in the opening and closing process of the semi-ball valve, and organizing sealing monitoring in an operation stage of forming stable sealing contact between a valve core and a sealing surface; corresponding data acquisition modes are adopted according to different operation stages, and operation parameters directly related to the sealing contact behavior are obtained; staged processing is carried out on collected data, a sealing response characteristic section with clear physical significance is constructed, and a sealing contact dominant state and a change relation thereof are identified in multiple operation cycles; further comprehensively evaluating the sealing wear state of the semi-ball valve based on the persistence characteristic and the space migration condition of the dominant sealing response characteristic section in the continuous operation cycle; according to the invention, the operation evaluation and maintenance decision-making capability of the sealing state of the semi-ball valve is greatly improved.

The utility model discloses a fireproof self -cleaning gas ball valve, including the ball valve shell, the outer surface fixed mounting of ball valve shell has data processor, the upper surface fixed mounting of ball valve shell has the connecting seat, the upper surface fixed mounting of connecting seat has the connecting disc, the upper surface fixed mounting of connecting disc has electric drive part. The device can monitor the gas concentration in the air in real time through the gas sensor arranged on the monitoring branch plate, and the collected data can be transmitted to the data processor for analysis and processing. In addition, when the gas leaks, the flashing warning light is turned on and the voice broadcaster issues an alarm, which can remind the surrounding personnel on the spot. The wireless communication module can also send alarm information to the mobile terminal and the system terminal, which is convenient for relevant personnel to take timely measures and achieve the effect of pre-treatment fire prevention. The cleaning blade on the inner wall of the ball valve shell can contact the valve body when it rotates, and the outer surface of the valve body can be cleaned.

Bypass unit (10) comprising a delivery duct (2) and a return duct (3) for a fluid directed to or coming from a fluid-exploiting unit (1), respectively, a first ball valve (11) placed along the delivery duct (2), a second ball valve (12) placed along the return duct (3), and a bypass duct (13) connecting the delivery and return ducts (2, 3) at said valves (11, 12) The valves (11, 12) are two-way spherical shutter and are associated with a first ring-shaped sealing gasket (34, 36) and a second gasket (35, 37) performs its sealing action on the side of the bypass unit (10) connected to the thermal exchange unit (1).

The application relates to the technical field of valve sealing structures, and provides a full-sealing structure of a deep-sea ball valve, which comprises a valve cover, a ball, a power supply assembly, a ceramic disc, a driving assembly and a limiting assembly; a wire hole is arranged in the center of the valve cover, and the wire of the power supply assembly enters the valve body from the wire hole; the power supply assembly comprises a wire, a wire tube and a sealing assembly, the wire tube is installed in the wire hole of the valve cover, the wire is installed in the wire tube, and the sealing assembly is arranged between the wire and the wire tube and between the wire tube and the valve cover; the driving assembly comprises an impeller and a magnet; the disc body of the ceramic disc is fixedly connected with the ball, the center cavity is installed with the magnet, the outer side annular cavity is filled with metal fluid or electrolyte solution, the impeller is installed on the annular partition plate and the blades are immersed in the metal fluid or electrolyte solution; and the limiting assembly limits the rotating range of the ceramic disc and the ball. The application changes the dynamic sealing at the valve rod into static sealing, and can more effectively seal the ball valve in the deep-sea environment.

The invention belongs to the technical field of pipeline ball valves, and particularly relates to a multi-redundancy sealing ball valve for a hydrogen conveying pipeline, which comprises a valve body, a ball valve component, a switch assembly and two blocking modules. The ball valve assembly is used for opening or closing gas conveying of the hydrogen conveying pipeline. The switch assembly is detachably connected with the valve body and used for controlling the valve rod to rotate. The two blocking modules and the valve body are coaxially arranged, after the ball valve assembly is closed, the two blocking modules can further block conveyed gas, and the purpose of double blocking is achieved. According to the invention, through the dual sealing of the ball valve and the blocking assembly and the anti-permeation effect of the sealing assembly, the gas in the pipeline can stay outside the blocking assembly, even if the sealing between the ball valve and the valve body is abnormal, the gas can be blocked through the blocking assembly, and the dual-guarantee effect is achieved. The sealing assembly enables the gas not to permeate out of the sealing ball valve through a gap of the valve body when the gas is outside the blocking assembly, and the sealing performance of the sealing ball valve is further improved.

The utility model discloses an automatic cleaning ball valve, and relates to the technical field of ball valves. The cleaning device comprises a water pipeline, an installation assembly, a ball valve assembly and a cleaning assembly, the water pipeline is connected with an external pipeline through a flange, a water inlet is formed in one end of the water pipeline, and a water outlet is formed in the other end of the water pipeline; the first channel and the second channel are both communicated with the interior of the water passing pipeline, the ball valve assembly is installed in the water passing pipeline and comprises a ball valve body, the ball valve body is rotationally arranged in the water passing pipeline, a water passing opening is formed in the peripheral side face of the ball valve body and communicated with the water passing pipeline, and the cleaning assembly comprises a dredging plate. And a plurality of dredging rods are fixedly arranged on one side of the dredging plate. Through the specific structural design of the water passing pipeline, the mounting assembly, the ball valve assembly and the cleaning assembly, the cleaning efficiency of the ball valve is improved.

The utility model provides a kind of pneumatic ultralow temperature ball valve and automatic LNG loading sled, it is related to cryogenic valve technical field, including valve main body and pneumatic actuator, the valve main body includes valve body, valve stem, valve cover, ball and drip tray, wherein: the valve cover is connected with the valve body, the ball is arranged in the valve body and can rotate under the drive of the valve stem, the valve stem is arranged in the through channel formed by valve cover and the valve body, one end extends into the valve body and is connected with the ball for controlling medium on-off, the other end is connected with the pneumatic actuator to realize driving;The valve cover is lengthened neck structure and the length of the valve cover is less than 250mm;The drip tray includes three groups, three groups of drip tray are sequentially fixed along the axial direction of the valve cover.The utility model has the beneficial effect of shortening the length of lengthened neck while ensuring the anti-condensation effect, so that the pneumatic ultralow temperature ball valve can adapt to specific working conditions.

The application provides a deep-sea rapid blocking valve and a use method. The rapid blocking valve comprises a valve body, a valve cover and a valve rod. The valve body is internally provided with a valve cavity. The valve cover is connected with one side of the valve body to form a closed space. A flow channel is arranged in the valve cavity. A one-way valve structure and a two-way valve structure are arranged along the flow channel. The inner side end of the valve rod extends into the valve cavity and is connected with the one-way valve and the two-way valve in linkage. The one-way valve and the two-way valve are both provided with sealing structures between the valve body and the inner wall of the valve body. The L-shaped integrated valve body type is arranged in a side-mounted structure. The two-way ball valve is integrated in the interior. The structure is compact, light in weight, small in size, reduces the external leakage points of the valve, is convenient to install, improves the pressure-bearing capacity and the sealing capacity.

The utility model discloses a ball valve structure, including split type valve seat, the valve seat inside movable installation has the valve body, is equipped with the flow channel with valve seat communication on the valve body, and the first impeller and second impeller are rotatoryly installed respectively in the middle part of flow channel and one end close to valve seat output, and the middle part of two sets of impeller all is equipped with through -hole, and a plurality of first brush rod close to flow channel inner wall distribution are fixedly connected between the first impeller and second impeller, and one end close to valve seat input of flow channel is fixedly covered with filter screen. In the utility model, in the medium flow process, two sets of impeller are rotated by fluid thrust, with the rotation of impeller, first brush rod constantly scrapes flow channel inner wall, and the second brush rod on the central shaft rotates synchronously, and the surface of filter screen is cleaned continuously, avoids the problem that the flow is reduced or is blocked because of the accumulation of impurity, and the influence of impurity to valve is reduced to the integration filtering and self -cleaning function, and long -term stable operation is ensured.

1. Name of the designed product: Three-way ball valve (manual). 2. Use of the designed product: For controlling fluid. 3. Design points of the designed product: In shape. 4. Picture or photo best indicating the design points: Perspective view.