1857 results about "Valve stem" patented technology

The invention discloses a fault monitoring sealing ball valve, belongs to the technical field of ball valves, and solves the problems that a self-adaptive compensation mechanism of an intelligent valve positioner can cover the degradation process of mechanical wear of a pneumatic sealing ball valve quietly during long-term operation, and finally sudden control instability is caused due to the fact that nonlinear wear exceeds a compensation limit. Comprising a valve body, a pneumatic actuator arranged on the valve body, a valve rod which is in transmission connection with an output shaft of the pneumatic actuator and located in the valve body, a valve ball fixedly connected with the valve rod and a fault prediction circuit. The fault prediction circuit comprises a multi-dimensional physical sensing array module, a high-speed synchronous acquisition and preprocessing module, a core signal processing and fusion analysis module, an artificial intelligence coprocessor module and a predictive maintenance decision and life cycle management module. Multi-dimensional signals are collected in real time, valve health is evaluated after fusion analysis, and early warning and maintenance decisions are output.

A valve has a body having an inlet, an outlet, and chamber. The inlet is in fluid communication with the chamber and the chamber is in fluid communication with the outlet. The valve has a stem designed to be received in the chamber. The valve stem has a valve surface. A corrosion-resistant or nonreactive sleeve is inserted into the inlet. The sleeve has a first end and a second end opposite the first end and a bore that extends from the first end to the second end. When the sleeve is inserted into the inlet, the second end extends into the chamber and is configured to be deformed within the chamber to secure the sleeve in the inlet. The deformed second end defines a valve seat configured to engage the valve surface of the stem.

A center hole is formed in a base, the lower end of a guide sleeve is coaxially fixed to the upper end of the base, a lower die is installed in the guide sleeve in a matched mode, and the lower end face of the lower die makes contact with the upper end face of the base. The conical section at the upper end of the valve rod and the lower half portion of the large-diameter section are matched with a lower die hole in the upper end of the center hole of the lower die, the upper die is arranged in the guide sleeve in a matched mode, an upper die hole in the lower end of the center hole of the upper die is matched with the large-diameter section of the valve rod, and the upper end of the upper die extends out of the guide sleeve. And the upper end of the valve rod is deformed and turned inwards until the belleville spring and the maximum-diameter position of the lower end of the valve head are completely wrapped in the stepped hole of the large-diameter section of the valve rod. According to the utility model, the technical problem that the valve rod assembly of the indicator valve cannot be directly assembled is solved, the problem that the valve head is arranged in the inner hole of the valve rod and the stroke of the valve is ensured by accurately controlling the length of the inner cavity when the valve head, the valve rod and the belleville spring of the indicator valve are assembled is effectively solved, the valve rod assembly is ensured to be smoothly assembled, and the assembling quality and the processing efficiency are ensured.

The utility model discloses an anti-blocking regulating valve which comprises a valve body, a valve cover installed on the valve body, a support installed on the valve cover, an actuator installed on the support and a valve rod connected with the actuator. The bottom of the valve body is detachably provided with a bottom cover and a filter cartridge arranged between the bottom cover and the valve body; the bottom cover is provided with a plurality of flushing holes, a flushing chute communicated with the flushing holes and a cleaning discharge port communicated with the cleaning discharge port. Impurities in liquid can be filtered by arranging the filter cartridge, and blockage caused by accumulation of the impurities in the liquid flowing to the valve element is prevented, so that normal use of the valve is guaranteed; impurities generated after the interior of the valve body and the filter cartridge are flushed can flow into the flushing chute through the flushing hole, and uniformly flow to the cleaning discharge port through guiding in the flushing chute to be uniformly discharged, so that the interior of the valve can be flushed without disassembling the valve, and the flushing convenience is improved.

A lockout device can be used to secure a valve, a valve stem, or other control. The lockout device includes a cover having an internal cavity and an opening about the internal cavity, a cable that is flexible, a cable attachment point attached to the cover to which the cable is attached at its securable end, and a cable lockout module attached to the cover. The cable lockout module includes a cable engagement element having a cable-receiving pathway extending therethrough for reception of a free end of the cable and selective securement thereof to create a cable loop. The cable lockout module further has a door. When the door is in a closed position, the cable engagement element is securely covered by the door and the door is lockable relative to a remainder of the cable lockout module to prevent the door from being opened.

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 invention provides an anti-corrosion butterfly valve of a self-repairing sealing structure, and relates to the technical field of butterfly valves, the anti-corrosion butterfly valve comprises two mounting flanges, and the two mounting flanges are both fixedly connected to the outer side of a butterfly valve body; the two groups of mounting bolt holes are respectively formed in the inner sides of the two mounting flanges; the mounting support is fixedly mounted on the upper end face of the butterfly valve body through bolts. The transmission box is fixedly mounted on the upper end face of the mounting support through bolts. The transmission connection cylinder is fixedly connected to the outer side of the transmission box; the valve rod transmission shaft center is rotationally connected to the inner side of the butterfly valve body, and the problems that in the using process of an existing anti-corrosion butterfly valve, if cracks are generated due to abrasion or scratching of a sealing ring, a gap is easily formed between a disc type valve clack of the butterfly valve and the sealing ring, normal work of the valve is affected, and the service life of the valve is shortened are solved. The sealing performance of the butterfly valve is guaranteed, and the service life is prolonged.

The utility model relates to a cut-off type hydraulic ball valve for deep sea, which comprises a single-action hydraulic actuator and a valve, and the hydraulic actuator comprises a compact cylinder body, a piston rack, a gear transmission shaft, a pressure balancer, a spring energy storage device and a valve position feedback indicator. And the valve part comprises a valve body, a valve rod, a ball, a valve seat, a valve seat gland and a stuffing box. The deep-sea external pressure resistant ball valve has the advantages of deep-sea external pressure resistant working condition, simple structure, low cost and high stability.

The invention relates to the technical field of butterfly valves, in particular to a pressure relief butterfly valve. The pressure relief butterfly valve comprises a valve body, a valve core and a pressure relief valve core, the butterfly plate is rotatably arranged in the medium channel, and a pressure relief through hole is formed in the butterfly plate; the valve rod is sleeved with the rotating block, the rotating block is tightly matched with the valve rod, the rotating block is located on one side of the butterfly plate, a sealing cover is arranged on the rotating block, in the sealing state, the sealing cover is tightly matched with the pressure relief through hole, in the pressure relief state, the sealing cover is separated from the pressure relief through hole, and the valve rod is used for driving the rotating block to move. The rotating block is switched from a sealing state to a pressure relief state; and the reset elastic component is used for providing elastic driving force for switching the rotating block from the pressure relief state to the sealing state. And in the pressure relief state, the sealing cover is separated from the pressure relief through hole, and a medium can flow through the pressure relief through hole, so that the torque required when the valve is opened is reduced, the problems of vibration and abrasion of the valve are solved, and the reliability and the safety of the valve are improved.

The present technology relates to an automatically locking, releasable, safety knob assembly for a stove. The assembly includes a base with a locking notch. An adapter mates with the stove's valve stem and has a head, a tubular middle section, and an adapter base with a central aperture for receiving the valve stem. The knob includes a housing with a housing disk covering the base, an arm movement channel aligned with the locking notch in the locked configuration, and a central aperture for receiving the adapter head. The assembly further includes a sub-assembly with a slidable button allowing free rotation of the knob in the unlocked configuration, an automatic locking arm biased with the slidable button, and engagement with the button causing the arm to disengage from the locking notch and move in the arm movement channel, enabling the knob to freely rotate and rotate the valve stem.

The invention discloses a valve inner leakage detection method based on multi-source information fusion, and particularly relates to the field of valve inner leakage detection.The valve inner leakage detection method comprises the steps that firstly, multi-dimensional information of dynamic response of a valve body and the state of a driving system is synchronously collected, and high-quality basic data is constructed through noise reduction, alignment and abnormal correction preprocessing; extracting time domain, frequency domain and time-frequency domain characteristics and valve rod displacement, servo torque and current characteristics, and integrating the characteristics into high-dimensional characteristic vectors; then training a hierarchical diagnosis model, learning a health state feature boundary by a feature-level fusion model, and establishing a fault recognition rule by a decision-level fusion model through dual-channel classification and evidence fusion; and finally, during online detection, preliminarily screening anomalies through the model, finely identifying faults, and outputting a report containing a valve identifier, an operation state, an inner leakage level and confidence. According to the method, through multi-source information cooperation and hierarchical diagnosis, the inner leakage detection precision and the anti-interference capability are improved, and a reliable basis is provided for valve operation and maintenance.

The invention discloses a decoupling type fluid self-sealing overflow valve, and relates to the technical field of overflow valves, the decoupling type fluid self-sealing overflow valve comprises a valve body, a first cavity and a second cavity, the first cavity and the second cavity are arranged in the valve body, and the first cavity is communicated with a pressure relief channel on the valve body; a flow channel is formed in the sealing seat; the sealing module comprises a valve rod arranged in the first cavity in a sliding mode, a pressure cavity is formed in the first end of the valve rod, a first elastic piece is arranged in the pressure cavity, and a valve element coaxial with the flow channel is arranged at one end of the first elastic piece; the pressure regulating module comprises a second elastic piece arranged in the second cavity, and one end of the second elastic piece abuts against the second end of the valve rod. The decoupling type fluid self-sealing overflow valve solves the technical problems that an existing overflow valve has the defects that sealing is loosened under high pressure, inner leakage is increased, the valve element opening resistance is large, overflow response lags behind, an overflow pressure set value drifts, and control precision is reduced.

The utility model provides a safety gas valve which comprises a valve body, a gas inlet channel, a gas outlet channel, a lower installation cavity and an upper installation cavity are arranged in the valve body, a ball valve is arranged in the gas outlet channel, an electromagnetic valve assembly is arranged in the lower installation cavity, the electromagnetic valve assembly is connected with an induction device through an electric control device, and the induction device is connected with the ball valve. The upper mounting cavity is correspondingly arranged above the lower mounting cavity, a valve rod connected with the ball valve is in clearance sealing connection in the upper mounting cavity, a bouncing valve element assembly is arranged in the valve rod, and the lower end of the bouncing valve element assembly penetrates out of the ball valve and is arranged above the electromagnetic valve assembly; the gas stove is reasonable and compact in structure, circulation of the ball valve and the gas outlet channel is controlled by rotating the ball valve through the valve rod, circulation of the ball valve and the gas inlet channel is controlled through cooperation of the electromagnetic valve assembly, the induction device and the bouncing valve element assembly, gas leakage caused by misoperation under the condition that the gas stove is shut down accidentally and is unattended can be avoided, and the safety of the gas stove is improved. The use is safer.

The utility model discloses an anti-particle combination valve, which comprises a valve body, a valve core, a valve core and a valve core, the driving mechanism is connected to the side wall of the valve body; one end of the valve rod is connected with the driving mechanism; the valve element is arranged in the valve body and connected with the other end of the valve rod, when the valve rod is linked by the driving mechanism, the valve element is linked by the valve rod, the valve element moves in the valve body, and the gas channel is opened or closed; the protection piece is connected to the side wall of the valve body and arranged opposite to the driving mechanism, one end of the protection piece makes contact with the gas channel, and the valve element abuts against the protection piece when the gas channel is closed by the valve element; the protection piece is made of stainless steel; the part, making contact with the protection piece, of the valve element is made of stainless steel. Therefore, the technical problem that particles generated by contact friction between the valve element and the valve body pollute a vacuum system is solved.

The utility model discloses a distributor with a spiral lock. The distributor comprises a pump body, a valve rod, a spiral sleeve and a spring. The lower portion of the valve rod is sleeved with the spiral sleeve, and the spiral sleeve and the valve rod are fixed in the circumferential direction. The valve rod is sleeved with the spring, the upper plane of the spring abuts against the duckbill, and the lower plane of the spring abuts against the spiral sleeve. A spiral groove is formed in the pump body, and a transverse groove is formed adjacent to the top of the spiral groove. A spiral protrusion is arranged on the side wall of the spiral sleeve. When the spiral protrusion is located in the transverse groove, the distributor with the spiral lock is in an opened state. When the spiral protrusion is located at the bottom of the spiral groove, the distributor with the spiral lock is in a closed state. According to the distributor with the spiral lock, the user experience of consumers is improved, and the service life of the distributor is prolonged. According to the distributor with the spiral lock, the product height is reduced, and the production cost is reduced; and the outer diameter of the pump body is reduced, so that the adaptability and the applicability of the spiral lock distributor are wider.

The utility model provides a high performance liquid chromatograph for detecting the concentration of vitamin C in human serum. Comprising a degasser, a detector arranged above the degasser, an automatic sample injector arranged above the detector, a solvent frame arranged above the automatic sample injector, a column oven arranged on the automatic sample injector, a side door hinged to the outer side of the degasser, a valve body fixedly installed on the inner side of the degasser and a valve rod installed in the valve body. And an exhaust driving mechanism mounted on the valve body is fixedly mounted on the inner side of the degasser. According to the high performance liquid chromatograph for detecting the human serum vitamin C concentration, a two-way lead screw is automatically matched with thread transmission to drive a first clamping plate and a second clamping plate to move reversely, and then a solvent bottle located on the inner side of an avoiding hole is clamped and fixed through an anti-skid pad; the vibration generated when the high performance liquid chromatograph is used cannot cause the shaking of the solvent bottle, so that the high performance liquid chromatograph can well limit the solvent bottle.

The utility model relates to the technical field of inflating valves, and discloses a vacuum tire inflating valve with a sealing reinforcing ring, which comprises an inflating valve body, a sealing head is fixedly mounted at one end of the inflating valve body, a valve core is arranged in the inflating valve body far away from the sealing head, the valve core comprises a core body, and a core cap is fixedly mounted on the core body. The core body is in threaded connection in the inflating valve body through a core cap, a core rod is installed in the core cap in a penetrating mode, a valve seat and a spring seat are fixedly installed on the outer side of the core rod, and a compression spring is further arranged on the core rod between the inner bottom of the core body and the valve seat in a sleeved mode. The outer side of the core body is provided with a plurality of second sealing grooves, and the lower end of the core body is provided with a sealing ring of which the inner side and the outer side are provided with reinforcing grooves, so that when the upper end of the core seat abuts against the core body through the sealing reinforcing ring, the sealing ring is clamped into a third sealing groove, and then multiple sealing between the sealing reinforcing ring and the core body is achieved; and the airtight reliability of the whole valve core can be 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 utility model discloses a small caliber high pressure bellows safety valve relates to safety valve technical field, solves the failure problem such as small size valve stem bending easily, the valve piece includes the valve piece of the integral constitution and the recoil disc part, and the lower extreme of bellows is connected with the recoil disc part, the top side of valve piece forms the guide column upwards and extends, and the guide hole of guide bushing slides up and down with the guide column, and the top end of guide column extends to the top hole orifice position of guide hole, and the lower spring seat is equipped with below spring, and the bottom of valve rod is abutted with lower spring seat, and the bottom surface of lower spring seat has the first cone body of the downward convex inverted cone, and the top surface of guide column is equipped with the first taper groove of the first cone body adaptation, and the first cone body is formed positioning into the first taper groove. The overall structural strength and rigidity of valve rod system are strengthened, can bear the high load under the high pressure working condition of small caliber, and the length of guide cooperation is prolonged, and the perpendicularity and stability of valve piece in the movement in the opening and closing process are ensured.

This invention relates to the field of valve technology, and in particular to a bidirectional sealing ball valve specifically for sewage, comprising a valve body, a ball, a through hole, a valve stem, an outer casing, a worm gear, a worm, and a handwheel. The outer casing has a first horizontal block and a second horizontal block on both sides, with a first adjusting bolt and a second adjusting bolt screwed onto the first and second horizontal blocks respectively. The worm gear has a first cross-section and a second cross-section on both sides, with the included angle between the first and second cross-sections greater than 45 degrees. This invention achieves precise adjustable calibration of the ball's opening and closing position from 0 to 90 degrees through the cooperation of the adjusting bolts and the worm gear cross-sections, compensating for machining and assembly errors and ensuring bidirectional sealing reliability. This invention integrates precise limiting, transmission clearance elimination, ball surface self-cleaning, and inner wall self-driving scraping, effectively solving the problems of valves not closing tightly, easily jamming, and easily scaling under sewage conditions, significantly extending the valve's service life.

The utility model belongs to the field of diaphragm valves, and particularly relates to an integrated dual-drive controlled fluorine-lined diaphragm valve which comprises a valve body, a valve rod is arranged on the surface of the valve body in a penetrating mode, an operation assembly is arranged at the top of the valve rod, one side of the valve body is fixedly communicated with a connecting pipe, a movable pipe is arranged in an inner cavity of the connecting pipe, and the movable pipe is connected with the valve rod. The right side of the moving pipe extends to the right side of the connecting pipe and is fixedly sleeved with a connecting disc. The operation assembly comprises a rotating box, the bottom of the rotating box is fixedly connected with the valve rod, the top of the rotating box is fixedly connected with a hand wheel, and the surface of the rotating box is sleeved with a fixing shell; by arranging the operation assembly, the inserting rod can be inserted into the inserting hole to fix the rotating box, limiting of the valve rod is achieved, the stability of the valve rod is improved, the valve rod is prevented from rotating, by arranging the adjusting assembly, the using length of the whole valve body can be prolonged by adjusting the moving pipe, and the requirements for different installation space lengths can be met.

The pressure relief device of the liquid carbon dioxide storage tank comprises a storage tank, the upper surface of the storage tank is fixedly connected with a valve body, the bottom of the inner side face of the valve body is connected with a valve element in a sliding mode, and the upper surface of the valve element is fixedly connected with a spring. According to the pressure relief device of the liquid carbon dioxide storage tank, three groups of pressure relief pipes, a connecting rod, a supporting arm, an induction button and an electric bell are arranged, so that the pressure relief speed of the device is increased, the device can realize graded pressure relief, and the safety of the device can be improved; when the storage tank is decompressed, the other end of the supporting arm presses the sensing buttons, so that the electric bell gives out warning sound to remind a worker that the storage tank is decompressed and is careful, the electric bell can be provided with three warning sounds corresponding to the three sets of sensing buttons, the device can give out different warning sounds according to different levels of pressure relief speeds, the effect is better, and use is convenient.

In the valve assembly, a valve seat comprises a valve hole and a valve hole edge portion. A valve stem moves along its central axis, causing the valve body to contact and separate from the valve hole edge portion to open and close the valve hole. The valve body comprises a sealing element and a convex portion. An end face on a projecting side of the convex portion is a tapered surface of the convex portion. A surface on the valve hole side at a pointed end of the valve hole edge portion is a tapered surface of the valve hole edge portion.An inclination angle of the tapered surface of the convex part with respect to a sealing surface is greater than an inclination angle of the tapered surface of the valve hole edge part with respect to the sealing surface, and a corner part of the convex part, at which an outer diameter of the valve body at the tapered surface of the convex part is minimal, is arranged on an inner side in a radial direction of the valve hole than a part with a minimum diameter of the tapered surface of the valve hole edge part, at which an inner diameter of the valve hole at the tapered surface of the valve hole edge part becomes minimal.

The utility model relates to the technical field of valve faucets, and discloses a valve faucet suitable for a high-temperature environment, which comprises a valve body, the upper end of the valve body is rotatably connected with a valve rod assembly in a penetrating manner, the surfaces of the valve body and the valve rod assembly are coated with ceramic coatings, the upper end of the valve rod assembly is fixedly connected with a handle, and the handle is fixedly connected with the valve body. A water filtering mechanism is arranged at the water outlet end of the valve body, a positioning ring is fixedly connected to the exterior of the upper end of the valve body, a positioning hole is formed in the left end of the interior of the positioning ring, and a positioning mechanism is arranged on the lower surface of the handle; according to the utility model, the water filtering mechanism is arranged, and the water filtering mechanism realizes real-time filtering of impurities in a medium through the modular design of the supporting sleeve and the filter cartridge; the filter cartridge can be quickly detached and cleaned, flow reduction caused by impurity blockage is avoided, the positioning mechanism automatically locks a handle in a positioning hole of a positioning ring through cooperation of a spring and a positioning rod when the valve is closed, and accidental opening of the valve caused by accidental touch, vibration or accidental collision is thoroughly eradicated.

This invention relates to the field of directional valve technology, specifically a miniature explosion-proof pneumatic directional valve with a redundant anti-jamming structure. It includes a housing with an internal air passage, a valve stem slidably disposed within the housing, a pneumatic piston connected to one end of the valve stem for driving the valve stem to reciprocate, a valve core slidably mounted on the valve stem and located within the air passage, and an anti-jamming component connected between the valve stem and the valve core. This component includes a positioning disc fixedly connected to the surface of the valve stem and an energy storage spring sleeved outside the valve stem, with both ends of the energy storage spring abutting against the positioning disc and the valve stem, respectively. When the valve core jams within the air passage, the valve stem can overcome the resistance of the anti-jamming component and continue moving relative to the valve core, allowing the anti-jamming component to store energy. When the stored energy reaches a threshold, the anti-jamming component releases the energy to drive the valve core to generate an impact motion.

The invention discloses a double-diaphragm type pneumatic two-way valve which comprises a valve body, a top cover, a bottom cover, a valve seat and a valve rod. A hollow cavity is formed in the valve body, and a medium inlet and a medium outlet which communicate with the hollow cavity are formed in the two sides of the valve body. The bottom end of the top cover is fixedly connected with the top end of the valve body; the top end of the bottom cover is fixedly connected with the bottom end of the valve body; the valve seat is located in the hollow cavity, the valve seat is fixedly connected with the valve body, and a medium channel is formed in the valve seat; the bottom end of the valve rod penetrates through the medium channel, a membrane A, a valve plate and a membrane B are sequentially fixed to the valve rod from top to bottom, the membrane A is connected between the valve body and the top cover in a sealed mode, the membrane B is connected between the valve body and the bottom cover in a sealed mode, and the valve plate is located between the medium channel and the membrane B. The diaphragm deforms to drive the valve rod to work through pressure difference, friction can be reduced, the driving efficiency is improved, part abrasion is reduced, and the service life of the valve is prolonged.

The invention relates to the field of aerosol bottle opening switch structures, in particular to a side-pushing type self-starting switch structure and a gas spacer, a slide way is provided with a bayonet structure, and the width of the bayonet structure is smaller than that of slide ways on the two sides of the bayonet structure; when the sliding unit slides along the slide way, the first part and the second part abut against the bayonet structure to slide, and when the first part slides along the bayonet structure, the width of the bayonet structure is gradually increased, so that the track frame deforms and accumulates elastic potential energy. After the widest position point passes through the bayonet structure, the width of the bayonet structure is narrowed, and the rail frame releases elastic potential energy to extrude the second part to continuously slide; the slideway is provided with a vertically-through through hole, the through hole is used for extending out of the valve rod, and the contact point of the switch unit and the bayonet is defined as a starting point when the valve rod is opened by the second switch assembly; the activation point is located on the second portion. The switch structure can ensure the one-time opening success rate through a self-starting mode, and is simple to operate and low in cost.

The spray gun comprises a barrel (12) having an angularly arranged handle (14), a barrel liquid supply conduit for guiding liquid from a liquid supply to a discharge orifice of the barrel (12), and a valve stem arranged within the barrel liquid supply conduit for relative movement between open and closed positions of the discharge orifice (21). Comprising a pair of magnets (40A, 40B) disposed outside the liquid supply conduit is effective for biasing the valve stem to the discharge hole closed position in response to the repulsive magnetic force of the magnets, and the trigger (15) is actuatable to move the valve stem against the repulsive magnetic force of the magnet assemblies (40A, 40B) in order to open the discharge hole (21), the opposite magnetic forces of the magnets force the valve stem to a closed position of the discharge hole (21).

This invention relates to the field of industrial valve technology. It discloses an intelligent manual ball valve with electronic locking function, comprising a valve body, a valve ball, a valve stem, and a handle, and further including an electronic locking unit located above or to the side of the valve stem. The electronic locking unit includes a housing, a locking mechanism located within the housing, an electric actuator, and a control module. The locking mechanism restricts the rotation of the handle relative to the valve body in the locked state. The electric actuator drives the locking mechanism to switch between locked and unlocked states. The control module is electrically connected to the electric actuator and an external signal interface. The control module is configured to output a drive signal to the electric actuator based on control information from at least one local authorized operation, remote control command, and process interlock signal, thereby controlling the locking mechanism to switch between locked and unlocked states, thus achieving electronic locking and unlocking of the handle. The valve opening and closing actions are completed by the operator through manual rotation of the handle.

The utility model is suitable for the technical field of building construction, and provides a concrete water stop ridge platform reinforcing structure which comprises two supporting assemblies and a plurality of sliding fixing assemblies matched with the two supporting assemblies. Each supporting assembly comprises a hollow support, fixing rods are slidably inserted into the two ends of the interior of each support, the ends, away from the supports, of the fixing rods are fixedly connected with fixing plates, inflating valves communicated with the interiors of the supports are arranged in the middles of the supports, and two supporting rods are fixedly connected to the tops of the supports. The two supporting rods are symmetrically arranged with the inflating valve as the center, and connecting rods are slidably arranged at the ends, away from the inflating valve, of the supporting rods and provided with sliding grooves parallel to the connecting rods. The sliding fixing assembly comprises a sliding rod, the sliding rod is arranged between the sliding grooves in the same side of the two supporting assemblies in a sliding mode, and two detachable limiting inserting plates are oppositely arranged on the sliding rod. Therefore, the device can be freely adjusted according to the actual size of the water stop ridge platform, and construction is fast and convenient.