10562 results about "Valve seat" patented technology

An embodiment of a valve seat for a pumping assembly includes a body having a bore. In addition, the valve seat includes an embedded structure embedded in the body so as to define, at least partially, a strike face of the valve seat. The strike face extends circumferentially about the bore, and the embedded structure includes a gradient material structure having a first material, a second material spaced from the first material, and a compositional transition region between the first material and the second material.

A valve seat for a pumping assembly. The valve seat includes a body including a gradient material structure that defines a strike face for the valve seat. The gradient material structure has a first material, a second material spaced from the first material, and a smooth compositional transition between the first material and the second material. In addition, the valve seat includes a bore extending through the body.

The invention provides a rigidity valve which comprises fixed iron, a valve element and a valve seat. The valve core is sleeved in the fixed iron and the valve seat; the valve element can move in the axial direction relative to the fixed iron and the valve seat so as to selectively open or close a valve port in the valve seat. The stress areas of the upper surface and the lower surface of the valve element are equal, so that the upward gas pressure and the downward gas pressure borne by the valve element are equal. Through the configuration, the operation comfort and the response speed of the rigidity valve are improved, meanwhile, the sealing performance is improved, and the sealing stability is improved.

A faucet comprises a faucet body and a locking assembly. The locking assembly is connected to the faucet body, and the locking assembly is configured to pass through a mounting hole of a countertop. At least part of the locking assembly is configured to be controlled to abut a lower side of the countertop, and the faucet body comprises a faucet housing, a support frame, and a valve. The support frame is disposed in the faucet housing, and the support frame is configured to be supported on an upper side of the countertop. The support frame is connected to the locking assembly, and the support frame forms a valve seat configured to be connected to the valve. The locking assembly comprises an operating member rotatably disposed on the support frame, and the operating member is configured to control the locking assembly to abut the lower side of the countertop.

The invention discloses a water pump and water purification equipment, and relates to the technical field of water purification. The water pump comprises a valve seat, a pump cover and a sealing piece; the pump cover is mounted on the valve seat; according to the technical scheme, the sealing piece is arranged between the valve seat and the pump cover, the first separation barrel and the second separation barrel are additionally arranged, so that the sealing piece can be more tightly connected between the two separation barrels in an abutting mode, the turned-over edge is arranged between the first separation barrel and the second separation barrel, the turned-over edge wraps the periphery of the first separation barrel and / or the periphery of the second separation barrel, and therefore the sealing effect is improved. Through the design, the sealing performance of the water pump is improved, leakage of gas or liquid is avoided, and therefore the overall performance of the water pump is improved.

A cage-type dual wedge throttle valve, comprising: a housing having an inner cavity; a valve cover arranged at the top of the housing; a valve seat arranged in the inner cavity, wherein the valve seat comprises an outer valve seat and an inner valve seat, and a plurality of flow holes are distributed on the peripheral wall of the outer valve seat; a valve core, which comprises two wedge-shaped surfaces and two cylindrical surfaces which are axially symmetrically arranged about the central axis, wherein the cylindrical surfaces face the direction in which a fluid flows into the inner cavity, and the cylindrical surfaces can fit the inner wall of the inner valve seat; and a valve stem having the two ends respectively connected to a driving device and the valve core, wherein under the driving of the driving device, the valve stem can drive the valve core to reciprocate in the valve seat in the axial extension direction of the valve stem. By means of the above solution, primary throttling is achieved when a fluid passes through the outer valve seat, and secondary throttling is achieved as the valve core gradually extends into the inner valve seat; moreover, the valve core comprises wedge-shaped surfaces, and a long throttling stroke is formed, thereby improving the throttling switching performance of the throttle valve; the symmetrical arrangement of the two wedge-shaped surfaces can balance the pressure on the two sides, thereby improving the stability of the valve core under force.

The invention discloses a pressure regulating solenoid valve, which relates to the technical field of solenoid valves, and comprises a valve body, the top of the valve body is provided with a valve seat, the valve seat is internally provided with a cavity, and through the arrangement of a first pressurizing hole, a second pressurizing hole, a flow dividing hole, a first flow dividing pipeline, a second flow dividing pipeline, a first pressurizing cavity and a second pressurizing cavity, the pressure regulating solenoid valve is formed. During use, when unstable high water pressure flows into the valve body, the high water pressure pushes the inner barrel upwards, then the inner barrel moves upwards to drive the flow dividing holes to move upwards, the flow dividing holes are driven to be sequentially in butt joint with the first pressurizing hole and the second pressurizing hole respectively, and then water is divided into the first flow dividing pipeline and the second flow dividing pipeline; then water flows into the first pressurizing cavity or the second pressurizing cavity, then water pressure is dispersed, then the water flowing into the first pressurizing cavity or the second pressurizing cavity downwards compresses the first spring to cause deformation shortening, and meanwhile, a stretched second spring is matched, so that when the water pressure upwards jacks the sleeve and the inner cylinder, buffering protection on the sleeve and the inner cylinder is enhanced.

The invention relates to the technical field of homogenizing equipment, and discloses an adjustable gap type high-pressure microjet collision homogenizing valve structure and a homogenizing method.The homogenizing valve structure comprises a valve body provided with a homogenizing channel; the homogenizing valve seat is mounted in the homogenizing channel; the homogenizing valve seat is provided with a plurality of flow guide channels penetrating through the homogenizing valve seat, and the plurality of flow guide channels are arranged around the circumference at intervals; the homogenizing valve element is mounted in the homogenizing channel in a sliding manner; a jet flow cavity is formed between the homogenizing valve core and the homogenizing valve seat; a discharging hole is formed in the center of the homogenizing valve element, and an impact cavity is formed between the end of the discharging hole and the homogenizing valve seat and located in the center of the jet flow cavity. The adjusting device is used for driving the homogenizing valve core to slide and adjusting the distance between the homogenizing valve core and the homogenizing valve seat; wherein the discharging hole is aligned with the center of the homogenizing valve seat, and materials enter the jet flow cavity through the flow guide channel and then enter the discharging hole after being collided by the collision cavity. According to the homogenizing valve structure, the gap and the homogenizing pressure can be adjusted, and the purity of materials is not affected.

The invention discloses a micro proportional valve gradient composite coating and a preparation method thereof, and belongs to the technical field of micro proportional valve surface strengthening manufacturing. Aiming at the corrosion-resistant and wear-resistant requirements of the micro proportional valve under the working conditions of strong corrosion, multiple impurities and high pressure difference, the interface strengthening and corrosion-resistant and wear-resistant performance optimization of a metal matrix and a functional coating are combined, and metal / ceramic / polymer gradient material design, spraying parameter suitability research and a coating porosity / bonding strength control method are covered; the valve core and valve seat protection device is suitable for high-efficiency protection technical systems of valve cores and valve seats of precise instruments such as gas chromatographs and mass spectrometers.

The invention relates to a paraffin type thermostat. The paraffin type thermostat comprises a main valve 1, a cover and seal gasket assembly 2, an upper support 3, a rubber pipe 4, a valve seat 5, a vent hole 6, a lower support 7, paraffin 8, an inductor 9, a bypass valve 10, a central rod 11 and a spring 12. The upper support, the lower support and the valve seat of the thermostat are riveted into a whole. The upper end of the central rod is fixed to the center of the upper support. The lower portion of the central rod is inserted into a central hole of the rubber pipe. The lower end of the central rod is conical. A cavity between the rubber pipe and a shell of the inductor contains the paraffin. The upper portion and the lower portion of the shell of the inductor are provided with the main valve and the bypass valve which are in linkage. The vent hole is formed in the main valve. The paraffin type thermostat is high in heat conductivity and guarantees that an engine cannot be excessively cold.

The invention discloses a temperature control ball valve self-adaptive to temperature difference change, and relates to the technical field of valves, the temperature control ball valve comprises a valve seat, a buckling valve piece, a collaboration piece and a valve rod; the valve seat is fixedly connected with the buckling valve piece through a bolt, the valve seat and the buckling valve piece are buckled to form a circulation pipeline, the cooperation piece is arranged above the buckling valve piece, and the valve rod is vertically arranged in the valve seat and the buckling valve piece; by means of the design of the deformability detection assembly, safe and stable operation of the system can be guaranteed for the valve body with the valve rod deformability detection function, faults can be early warned in advance, the deformation condition of the valve rod can be monitored in real time, early warning can be given out in time when tiny deformation of the valve rod begins, and the safety of the valve rod is guaranteed. Workers can take measures in advance, and the serious problems that the ball valve cannot be normally opened and closed and fluid leaks due to further aggravation of deformation of the valve rod are solved, so that safe and stable operation of a whole pipeline system is guaranteed.

A valve seat for a pumping assembly. The valve seat includes a body including a gradient material structure that defines a strike face for the valve seat. The gradient material structure has a first material, a second material spaced from the first material, and a smooth compositional transition between the first material and the second material. In addition, the valve seat includes a bore extending through the body.

The utility model relates to an anti-backpressure high-precision spring safety valve which comprises a valve body, a valve seat, a valve clack, a valve rod, a guide sleeve and a spring pressure setting device, the lower end of the guide sleeve is pressed at an inlet of the valve body through a radial outer step of the valve seat, and a protruding cylinder arranged on the upper portion of the valve seat is concentrically sleeved in a guide cavity of the guide sleeve. The valve clack is sleeved in the guide cavity of the guide sleeve to form a piston type dynamic sealing structure, so that the concentricity of the valve clack and the sealing surface of the valve seat can be kept, and the sealing matching performance of a sealing pair is improved; the upper end of the guide sleeve is in sealing connection with the inner wall of the spring cavity on the upper portion of the valve body, the valve clack and the spring cavity are sealed and isolated from an outlet cavity of the valve body, back pressure of outlet cavity medium pressure on the valve clack is eliminated, and influence of corrosion of media on the spring on setting pressure is avoided. The device has the advantages of high pressure setting precision, reliable sealing performance of a sealing pair and the like.

The invention discloses a special working condition corrosion-resistant valve and relates to the technical field of valves, the special working condition corrosion-resistant valve comprises a valve body, a valve rod, a butterfly plate and a transmission device, and a valve seat containing cavity is defined by a limiting ring and a valve seat gland in the valve body on one side of the butterfly plate; a valve seat which can only slide in the axial direction of the valve body slides in the valve seat containing cavity in a sealed mode, and the whole valve seat is completely contained in the valve seat containing cavity. A metal sealing ring is fixedly installed on the outer periphery of the butterfly plate, and a valve seat sealing face matched with the metal sealing ring in a sealing mode is arranged on the inner side of the valve seat. And an elastic element is arranged between the valve seat and the valve seat gland. According to the three-eccentric butterfly valve, through the collaborative design of the three-eccentric structure, the hidden valve seat, the L-shaped fluid channel and the self-adaptive plugging assembly, the advantages of the three-eccentric butterfly valve are reserved, the defect of exposed design of a traditional valve seat is overcome through structural innovation, and it is ensured that the valve is accurate in action and reliable in sealing in the opening and closing process; and the sealing structure is particularly suitable for special working conditions with strict requirements on sealing performance and service life.

A multi-way valve includes a valve seat and a valve core. The valve core is rotatably disposed in the valve seat, the valve seat is provided with a plurality of valve port groups, each valve port group includes a plurality of valve ports, the valve core is provided with communication structure groups corresponding to the valve port groups, respectively, and each of the communication structure groups further includes a plurality of communication structures arranged along a circumferential direction of the valve core. When the valve core is rotated to different rotation positions, valve ports in different valve port groups form different communication states. Only one valve core is required to make a two-way proportional valves, three-way proportional valve, and a four-way proportional valve achieve different communication states, with simple control, compact structure and low cost.

The present invention discloses an electronically controlled evaporator and its control method. The electronically controlled evaporator includes: a medicine storage module, a plunger pump system, and a valve seat module; the medicine storage module includes a medicine tank, a medicine lid, and a bent plate; the plunger pump system is composed of a cylinder block, a piston rod, a floating joint, a lead screw, a pump motor, a pipe joint, etc., to realize the suction and pushing of anesthetic liquid; the valve seat module includes a valve seat, an air outlet, a diffusion joint, an air inlet, a lower valve plate of the evaporation core, an upper valve plate of the evaporation core, an evaporation core motor, an evaporation core spring, a ferrule, a switching valve motor, an upper valve plate of the switching valve, a lower valve plate of the switching valve, etc., to realize the on / off of the anesthetic liquid and the volatilization of the anesthetic. The anesthetic output by the plunger pump of the present invention can quickly volatilize and mix with fresh gas when entering the evaporation core, thereby realizing precise control of the anesthetic concentration. At the same time, when it is necessary to close the anesthetic output, the anesthetic liquid outlet can be quickly closed.

The invention discloses an intelligent electric regulating valve and a control method thereof, and relates to the technical field of regulating valves, the intelligent electric regulating valve comprises a valve body and an actuator, the valve body comprises a shell, a flow inlet channel and a flow outlet channel which are communicated with each other are arranged in the shell, a sealing cavity is formed between the flow inlet channel and the flow outlet channel, and a valve seat is arranged in the sealing cavity; a sealing hole is formed in the valve seat, an arc-shaped sealing face is formed in the valve seat, a valve element is arranged between the valve body and the actuator, the valve element comprises a valve rod and a valve head, the valve rod is connected with the shell in a sealed and sliding mode, the valve head is located in the shell and matched with the valve seat, and the valve sleeve is arranged on the valve head and matched with the valve seat. By means of the detachably-arranged valve sleeve, after the adjusting valve is used for a period of time, the sealing face of the valve sleeve is scoured by fluid media and then is greatly abraded, workers can solve the problem of the sealing performance of the valve element in the mode that the valve sleeve is replaced, and compared with a valve element of an integrated structure, the mode has the advantages of being simple, efficient and capable of saving cost.

A self-heat dissipation gate valve, comprising a valve body (1), a valve cover (2), a gate plate (3), and a valve rod (4). The valve body comprises a channel (11) and a valve seat (12) located on the channel. The valve cover is fixedly connected to the valve body, and a plurality of cooling fins (21) are arranged at intervals on the outer side wall of the valve cover. The gate plate is located in an inner cavity of the valve body. One end of the valve rod is connected to the gate plate, and the other end of the valve rod extends upwards until the other end of the valve rod partially extends out of the valve cover. The gate plate is configured to be driven by the valve rod to move to be mated with the valve seat to block the channel or is configured to be driven by the valve rod to move in a direction away from the valve seat to unblock the channel. During use, the high-temperature medium in the channel of the valve body can transfer heat to the valve body and the valve cover, and the plurality of cooling fins arranged on the valve cover can diffuse heat into the surrounding environment, so that the working performance of the gate valve is prevented from being affected by the excessively high temperature of the gate valve.

The invention discloses an exhaust butterfly valve with a sealing performance detection function, and relates to the technical field of butterfly valve detection.The exhaust butterfly valve comprises a butterfly valve body, a ventilation pipeline, a sealing detection mechanism and an anti-abrasion mechanism, the butterfly valve body is connected with the ventilation pipeline, the ventilation pipeline is connected with the sealing detection mechanism, and the ventilation pipeline is connected with the anti-abrasion mechanism; the butterfly valve body comprises a valve body, a valve seat and a sealing ring, the valve body is arranged on the ground, connecting holes are formed in the upper end and the lower end of the valve body, the valve seat is in a circular ring shape, and the valve seat is connected with the inner wall of the valve body in a fastened mode. The valve seat is arranged on one side of the valve body connecting hole.

A valve spring made of plastic, in particular for pretensioning a valve stem against a valve seat of a dispensing unit for dispensing a preferably liquid product, is proposed, wherein the valve spring has a plurality of spring elements arranged axially one behind the other, in particular along an axis or longitudinal axis. According to a first aspect, each spring element has two curved portions which are formed mirror-symmetrically with respect to one another and are connected to one another at their ends. According to a further aspect, the valve spring has a leaf-spring-like or cup-spring-like construction.

The utility model discloses a self-cleaning ore pulp knife gate valve, which relates to the technical field of valves, and comprises a valve body, a valve plate, a valve rod and a driving mechanism, the valve body is provided with a medium flow channel, the valve plate is inserted in the medium flow channel, the upper end of the valve body is provided with a through groove, the upper end of the valve plate penetrates through the through groove and is connected with the valve rod, the upper end of the valve rod is connected with the driving mechanism, and the valve rod is connected with the driving mechanism. A valve seat assembly is arranged in the medium flow channel and comprises an elastic sealing ring and an elastic annular scraper, the section of the front end of the elastic sealing ring and the section of the front end of the elastic annular scraper are in an arc shape and extend in the opposite directions, and the elastic sealing ring is in sealing fit with the valve plate. When the valve plate moves up and down, the elastic annular scraper can scrape silt, particulate matter and the like attached to the surface of the valve plate, the valve plate is kept clean, the service life of the valve is prolonged, the elastic sealing ring conducts elastic sealing compensation on the sealing face, the sealing face and the valve plate are kept sealed all the time, and the sealing reliability of the valve is guaranteed.

This application relates to a liquid discharge mechanism, a battery box, a battery, and an electric apparatus. The liquid discharge mechanism includes: a valve seat having a mounting chamber; a valve core assembled on the valve seat and at least partially accommodated in the mounting chamber; and a deformation member accommodated in the mounting chamber and connected between the valve seat and the valve core. The deformation member is configured to deform after contacting a target liquid, thus causing formation of a liquid discharge channel between the valve core and the valve seat.

The invention discloses a stop valve, and relates to the field of valves. A stop valve comprises a valve seat, a valve cover, a support, a lead screw and a sealing valve column, the liquid inlet end and the liquid outlet end of the valve seat are fixedly connected with liquid conveying pipelines on the two sides through flange plates and bolts respectively, the valve cover is fixedly installed on the valve seat through bolts, the support is fixedly installed on the valve cover, the sealing valve column is arranged in the valve seat, and the lead screw is fixedly installed on the support. The lead screw is fixedly connected to the upper end of the sealing valve column, the upper end of the lead screw upwards penetrates through the valve cover, and the double-opening sleeve is rotationally connected to the support; the operation difficulty of resisting fluid pressure when the valve is opened manually is effectively reduced, the downward pressure of fluid becomes assistance during closing, a worker only needs to reversely rotate the rotating wheel to achieve smooth downward movement of the sealing valve column, operation is convenient and fast, tighter sealing can be achieved through the fluid pressure, and the reliability after the valve is closed is improved.

A valve seat for a pumping assembly. The valve seat includes a body including a gradient material structure that defines a strike face for the valve seat. The gradient material structure has a first material, a second material spaced from the first material, and a smooth compositional transition between the first material and the second material. In addition, the valve seat includes a bore extending through the body.

Relates to an electric control valve for semiconductor gluing equipment and an assembling method of the electric control valve. The electric control valve comprises a pre-assembled inner box which is arranged in the dustproof shell and is provided with a driving assembly and an elastic pre-tightening module in a pre-assembled mode, a sealing membrane which is provided with a semi-circular-ring-shaped arc-shaped thin film part and an inverted-cone-shaped sealing boss and is used for sealing a longitudinal valve port, and a valve seat which is arranged at the lower end of the longitudinal valve port, connected with an inlet flow channel and provided with an inner arc spherical surface. According to the electric adjusting valve, the adjusting lead screw is driven by the stepping motor to rotate so as to achieve accurate lifting motion of the diaphragm connecting shaft, the elastic pre-tightening module provides stable pre-tightening force for the diaphragm connecting shaft, and the cooling space in the dustproof shell effectively reduces the operating temperature of the stepping motor; high-precision fluid control can be achieved, and meanwhile good sealing performance and long-time use durability are achieved. The problems that in the prior art, sealing leakage occurs, a flow channel is polluted, a membrane is prone to being damaged, and environmental adaptability is poor are solved, high-precision, long-service-life and zero-pollution flow control is achieved, and the technical effect of being applied to semiconductor gluing equipment is achieved.

The utility model relates to a supercritical unit drain ball valve structure which comprises a valve body, a valve rod and a valve ball, the valve body is integrally manufactured, a valve cavity is formed in the middle of the valve body, and flange holes are formed in the two ends of the valve body respectively. One side of the valve cavity is communicated with one flange hole, and the other side of the valve cavity is communicated with the other flange hole through a water through hole; a valve rod hole is formed in the middle of the upper end of the valve body, and fixing supports are arranged on the two sides of the upper end of the valve body respectively. The valve body is of an integrated die forging structure, the situation that a split valve is prone to leakage is avoided, the valve body is of a floating ball structure, and the ball body is easier to seal under high pressure; medium chromium carbide is sprayed on the ball body and the valve seat, so that the spraying hardness, the binding rate and the porosity are guaranteed, and the sealing reliability is guaranteed; a compensation disc spring is arranged between the valve seat and the positioning pressing ring, so that the valve seat ensures the mounting reliability and the sealing reliability; the thrust ring is arranged on the valve rod to limit the displacement of the valve rod and prevent the valve rod from being separated from the ball body, and safety and reliability are achieved.

The invention relates to a point load device based on pressure-maintaining coring and a testing method, the point load device comprises a pressure-maintaining cabin, the pressure-maintaining cabin comprises an outer cylinder, a core cylinder, a pressure-maintaining controller and a pressure head, the core cylinder is located in the outer cylinder, the pressure-maintaining controller comprises a valve seat and a valve clack, the valve seat is coaxially installed in the outer cylinder, and one end of the valve clack is movably connected with the upper end of the valve seat; the number of the pressure heads is two, the side wall of the outer cylinder is provided with mounting holes matched with the pressure heads, and the mounting holes are higher than the pressure maintaining controller. The two pressure heads are radially mounted in the mounting holes in the two sides of the outer cylinder respectively, the two pressure heads are opposite to each other, and sealing rings are arranged between the outer circular surfaces of the pressure heads and the hole walls of the mounting holes; through holes in one-to-one correspondence with the pressing heads are formed in the core barrel, when the core barrel is located at a preset position, the valve clack and the valve seat are closed, and the pressing heads directly face the through holes in the corresponding positions of the core barrel. According to the method, the influence of the in-situ pressure environment on the rock strength is considered, the point load experiment can be carried out in the in-situ environment, and then the real strength parameters of the rock in the in-situ environment can be obtained.

The present invention relates to the technical field of valves, and disclosed is a butterfly valve for use in ultra-low temperature environment. The butterfly valve comprises a valve body (1), a butterfly disc (2) in the valve body (1), a valve seat (3) matching with the butterfly disc (2), a valve stem (4) fixed to the butterfly disc (2), and an operating assembly (5) for driving the valve stem (4) to rotate, wherein a manhole (11) and an observation cover (12) covering the manhole (11) are provided on the valve body (1), and the observation cover (12) is detachably connected to an outer edge of the manhole (11) on the valve body (1); a cleaning assembly (6) is provided on an outer side face of the valve body (1), and the cleaning assembly (6) comprises a cleaning member (61) located above the observation cover (12) and a driving member (62) for driving the cleaning member (61) to slide back and forth on an upper side face of the observation cover (12); and an operating wheel (51) rotates to drive the driving member (62) to operate, and one side of the cleaning member (61) abuts against the upper side face of the observation cover (12), which reduces the difficulty of maintenance of the butterfly valve and improves the efficiency of maintenance of the butterfly valve. In addition, the rotation of the operating wheel (51) can drive the driving member (62) to operate, which in turn drives the cleaning member (61) to clean an outer surface of the observation cover.

A capacity control valve includes a main valve that opens and closes communication between a discharge port and a control port formed in a valve housing by movement of a rod driven by a solenoid, a CS communication passage providing communication between a control fluid supply chamber formed in the valve housing and a suction port, and an on-off valve formed by a communication passage forming member having an annular valve seat in an outer periphery of the CS communication passage and an on-off valve element biased in the valve closing direction with respect to the valve seat.

The utility model provides a fuel gas pressure reducing valve with a pilot-operated type fuel gas cut-off valve, which comprises a valve seat, a valve cover and a piston assembly, a gas inlet and a gas outlet are arranged on the valve seat, and the cut-off valve assembly is arranged on a gas inlet channel communicated between the gas inlet and the piston assembly and used for controlling on-off of gas flow in the pressure reducing valve. A three-way electromagnetic valve assembly is arranged in the valve seat on one side of the stop valve assembly, the three-way electromagnetic valve assembly is provided with an air inlet hole, a second air outlet hole and a third air outlet hole, and high-pressure air entering from the air inlet connector is communicated to the air inlet hole of the three-way electromagnetic valve assembly through a first process hole formed in the valve seat; the third air outlet hole is communicated with the back face of the stop valve assembly through a second process hole formed in the valve seat, and the second air outlet hole is communicated with the air outlet through a third process hole formed in the valve seat. Through the design of the independent three-way electromagnetic valve, a valve element switch is controlled by adopting very small electromagnetic force, so that the airflow direction is controlled, and switch control over the high-pressure main loop stop valve assembly is achieved.