955results about "Lift valve" patented technology

This utility model discloses a solenoid valve with anti-clogging function, including a valve body with an inlet and an outlet at both ends. A flow control component and a first filter component are disposed inside the inlet of the valve body, adjacent to the flow control component. A sealing component is installed at the open end of the valve body. An electromagnetic control component is disposed adjacent to the sealing component on the outside of the valve body, with a first chamber between the electromagnetic control component and the sealing component. A second filter component is disposed between the flow control component and the sealing component, and is threadedly connected to the valve body. The pore size of the second filter component is smaller than that of the first filter component. This utility model achieves dual filtration through the first and second filter components, resulting in better filtration and preventing a large amount of impurities from entering the first chamber. Simultaneously, only small-particle impurities accumulate inside the valve body, avoiding frequent cleaning of the solenoid valve.

The utility model relates to wire and cable production equipment technical field discloses a kind of discharge valves for pre-branch cable production, valve body is hollow cylindrical structure, the upper end of valve body is provided with flange, the lower end of valve body is provided with screw, the surface of screw upper valve body is provided with hexagonal clamping surface, the bottom end outer periphery of valve body at hexagonal clamping surface is provided with discharge port, the inner cavity lower end of valve body is provided with stepped hole, and hole shoulder is cooperatively arranged in stepped hole, valve flap is arranged in the inner cavity of valve body and is slidably assembled with stepped hole;Solve the problem that the volume of joint is different after each crimping, in order to ensure that mold cavity is fully filled when injection molding, injection volume is often greater than mold cavity volume, and the flash is formed by the overflow of the excess extruded plastic from the cable inlet of the mold and the parting surface between the movable mold and the static mold, which causes material waste and increases the difficulty of finishing.

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.

A valve member (30) of an electric-operated valve includes a control portion (35) and a movement restriction portion (37). The control portion (35) includes a control surface (36) that is an annular tapered surface facing outward. A valve port (15) is closed when the control surface (36) is in contact with an upper end (16a) of the valve port (15). The movement restriction portion (37) includes a movement restriction surface (38) that is an annular tapered surface facing outward. Movement of the control portion (35) toward the valve port (15) is restricted when the movement restriction surface (38) is in contact with an outer peripheral edge (18a) of a valve seat (18) of a valve body (10). The movement restriction surface (38) comes into contact with the outer peripheral edge (18a) when the control surface (36) is in contact with the upper end (16a).

The utility model discloses a kind of bed with excrement collector valve body, including upper valve body and lower valve body, the lower valve body is installed in the upper valve body bottom, the lower valve body is communicated with excrement collector and is arranged, the lower valve body top is equipped with waist type sliding groove, the upper valve body and lower valve body form waist type sliding cavity after installation in valve body interior, sliding setting is equipped with valve plate in the waist type sliding groove inside adaptation;Driving mechanism, it is set in the lower valve body inside or outside and the valve plate peripheral side is connected, for driving the valve plate displacement along the waist type sliding groove length direction;The upper valve body and lower valve body are equipped with excrement collection hole, the excrement collection hole is located in the upper valve body and lower valve body side away from the driving mechanism, the excrement collection hole is located in the waist type sliding groove projection, the valve plate and the excrement collection hole specification adaptation;Sealing element, the sealing element is respectively set on the opposite end face of the upper valve body and lower valve body, for realizing the sealing between valve plate and excrement collection hole and the upper valve body and lower valve body.

The refrigerant valve comprises a valve seat, the crystal phase organization of the valve seat is in equiaxed grain distribution, and the forming process of the valve seat comprises a warm upsetting process. The forming process of the valve seat in the refrigerant valve comprises the warm upsetting process. The warm upsetting process can make the base body of the valve seat deform plastically, close the cracks around the inclusions in the base body, and further reduce the leakage of the refrigerant in the refrigerant valve.

To provide a butterfly valve that enables rapid product supply while eliminating the possibility of foreign matter contaminating the fluid. [Solution] The butterfly valve 1 comprises a valve body 2 and a valve element 3. The valve body 2 is connected to a pipeline such as a water and sewage pipe and has an internal flow path 7 through which water and sewage flow. The valve element 3, which opens and closes the internal flow path 7, has a valve element base 8 and a connecting member 9 connected to the edge of the valve element base 8. The connecting member 9 has a valve element seat 11 that abuts against the valve body 2 when the valve element 3 closes the internal flow path 7, a shaft portion 12 connected to the valve element seat 11, and projections 13 and 14 protruding from the shaft portion 12. The edge of the valve element base 8 has a shaft portion housing groove 18 for housing the shaft portion 12 and projection portion housing grooves 19 and 20 for housing the projections 13 and 14. The connecting member 9 is pressed against the edge of the valve element base 8, the shaft portion 12 is housed in the shaft portion housing groove 18, and the projections 13 and 14 are housed in the projection portion housing grooves 19 and 20.

A valve opening / closing member and a direct-acting shutoff valve are provided with a valve flap, in which a valve body sealing gasket and a valve body sealing gasket fixing ring configured to fix the valve body sealing gasket to the valve flap are provided on one side of the valve flap in that order, the valve flap has a valve flap body, a male threaded post is provided concentrically below the valve flap body, the valve body sealing gasket fixing ring is provided with a female threaded hole to be screwed onto the male threaded post, and a sealing structure is provided on the side of the male threaded post away from the valve flap body, and the sealing structure prevents a medium from entering a gap between the male threaded post and the female threaded hole.

An embodiment of the present application provides a two-position, three-way combination valve with a self-holding pressure function, a pneumatic system, and a motor vehicle, comprising a valve body, wherein an installation space is provided inside the valve body, wherein a valve core is provided inside the installation space, wherein a first valve opening and a second valve opening are provided at each end of the installation space; wherein a third valve opening is further provided on the valve body, which is configured to be connected to an air consumption assembly, wherein the third valve opening is connected to the installation space;wherein an elastic recoil element comprises an elastic deformation section and a noise-damping interference section, wherein the elastic deformation section is arranged in the installation space, wherein at least one noise-damping interference section is provided on the elastic deformation section, wherein the noise-damping interference section is configured to suppress vibrations of the elastic deformation section;wherein, during use, the elastic deformation section deforms in a direction away from the first valve opening under the influence of an airflow pressure, wherein at this time the noise-dampening interference section is in contact with the valve body or the valve core to suppress vibrations generated by the blowing of an airflow onto the elastic deformation section, thereby eliminating shrill noises generated by strong vibrations at an edge position of the elastic deformation section, furthermore improving vehicle performance and ride comfort for occupants during travel.

This utility model belongs to the field of gate valve technology, and particularly relates to a gate valve, comprising: a valve body, wherein an inlet channel and an outlet channel are provided in the valve body; a valve core, which is movably installed in the valve body and has a first channel and a second channel; a valve stem, which is installed on the valve body for controlling the movement of the valve core; and a filter element, including a fixed seat, a first filter cartridge and a second filter cartridge, wherein the fixed seat is installed on the valve body, the first filter cartridge is installed on the fixed seat and communicates with the first channel, and the second filter cartridge is installed on the fixed seat and communicates with the second channel; when the valve core moves upward, the inlet channel, the first channel and the outlet channel remain connected, and when the valve core moves downward, the inlet channel, the second channel and the outlet channel remain connected; the beneficial effect of this utility model is that the gate valve can perform different filtering functions on different fluids according to the type of impurities contained in the fluid flowing through the valve body, thereby ensuring that different fluids flowing through the gate valve can achieve impurity filtration.

The present application provides a valve structure and an electronic expansion valve. The valve structure comprises a valve, a valve core assembly, and a filter screen assembly; the filter screen assembly comprises a filter screen; the valve core assembly is internally provided with a pressure equalization channel extending axially therethrough; the valve is provided with a valve port flow passage; the valve core assembly is disposed on the valve and is configured for regulating a flow rate of the valve port flow passage; the filter screen is arranged at one end of the valve core assembly close to the valve port flow passage and is located at an opening of the pressure equalization channel, the filter screen is configured for filtering a circulating medium entering the pressure equalization channel, and the filter screen protrudes toward the valve port flow passage, so that at the moment the valve core assembly opens the valve port flow passage, the circulating medium flowing through the valve port flow passage flows through a surface of the filter screen. The present application effectively utilizes a pressure difference at the moment a valve is opened, so that a large pressure difference at said moment drives a circulating medium to rapidly flush a filter screen, and thereby remove debris accumulated on the filter screen surface. This effectively prevents filter screen obstructions caused by debris, and enables filter screens to operate stably for a long period of time.

This utility model relates to the field of valve technology, and in particular to a butterfly valve that is easy to install. It includes a butterfly valve mechanism and a pre-reserved flange. An operating and fixing component is sleeved on the outside of the pre-reserved flange. The inner side of the operating and fixing component is spirally fitted to the outer side of an external component. An outer pipe flange is inserted into the rear end of the external component. The operating and fixing component includes a collar, with a contact ring plate fixedly connected to its inner side. A threaded hole is opened on the inner side of the collar. The external component includes a first permanent magnet plate, with an insertion hole opened on its inner side. An extension column is fixedly connected to the inner side of the insertion hole. A crimping ring is fixedly connected to the outer side of the extension column. A guide pin is fixedly connected to the bottom end of the first permanent magnet plate, and the guide pin is inserted into the guide hole. In this utility model, the device does not require external tools, solving the problem of butterfly valve fixing when the pipeline spacing is large, improving installation convenience, reducing labor intensity, ensuring construction progress, and demonstrating strong practicality.

This application relates to a pipeline flow regulation device, belonging to the technical field of pipeline flow regulation. It includes an installation pipe installed at the ends of two adjacent pipelines and connecting them. The inner diameter of the installation pipe is larger than the inner diameter of the pipelines. An adjustment block facing into one of the pipelines is provided in the installation pipe. A sliding cylinder is slidably connected to the side of the adjustment block closer to the other pipeline. The diameter of the adjustment block gradually decreases towards the side farther from the sliding cylinder. A connecting pipe is installed on the side of the sliding cylinder away from the adjustment block. The end of the connecting pipe away from the sliding cylinder is bent and passes through the installation pipe. A driving assembly for moving the adjustment block is installed at the end of the connecting pipe passing through the installation pipe. The driving direction of the driving assembly is not parallel to the fluid flow direction. This application has the effect of facilitating pipeline flow regulation and reducing adverse effects on work efficiency.

Example valve seats for enhancing pressure control in pneumatic valves are disclosed. An example valve seat for use with a pneumatic valve includes a central axis and a sealing surface. The sealing surface includes a plurality of indentations extending in an axial direction defined by the central axis.

The utility model discloses an electronic expansion valve and refrigeration plant relates to electronic expansion valve technical field, wherein, electronic expansion valve includes valve seat, valve core and elastic sealing member, valve seat is equipped with the export, valve core is movable and is arranged in valve seat, to block or open export, valve core has the free end for with the mouth rim of export abuts, elastic sealing member is located on the free end of valve core or mouth rim. The technical scheme provided by the utility model can reduce the wear and tear of valve core and valve seat, and improve the sealing effect of valve seat opening.

To provide a fluid control valve capable of increasing the stroke amount.SOLUTION: A diaphragm member 34 has a center located on the extension line of an axial center CL of an operation rod 9 and is spherically crown-shaped swollen to the side of the operation rod 9. At the peak, it is held from both sides in the direction parallel to the axial center CL by a first holding piece 93 contacting the diaphragm member 34 from the side of the operation rod 9 and a second holding piece 323 contacting the diaphragm member 34 from the side of a valve element 32. The first holding piece 93 and the second holding piece 323 are formed in a circle-shape located coaxially with the operation rod 9, and a diameter D11 of the first holding piece 93 is longer than a diameter D of the second holding piece 323. The face of the first holding piece 93, opposed to the diaphragm member 34, is formed to be swollen to the side of the diaphragm member 34, as a convex face 94 having a center on the axial center CL of the operation rod 9.SELECTED DRAWING: Figure 2

The present invention aims at an electric valve capable of achieving improvement in workability and durability by suppressing damage of a metal member by a reinforcing fiber and suppressing generation of wear debris. The electric valve (10) is provided with a valve main body (1A), a drive unit (3) that rotates a drive screw shaft (33), a screw feed mechanism (4) that advances and retreats the screw shaft in the axial direction (L) in conjunction with rotation of the screw shaft, a valve core (2) that approaches and retreats relative to a valve seat portion (1G) in conjunction with advancement and retreat of the screw shaft, and a connecting body (5) that connects the screw shaft and the valve core. The screw feed mechanism has an internal thread member (42) supported by the valve main body (1A), an external thread portion (33B) of the screw shaft (33) is threadedly coupled to an internal thread portion (42A) of the internal thread member (42), and the internal thread member (42) is made of a resin containing a reinforcing fiber (F). The screw shaft is made of a metal member having the highest hardness, as compared with a metal-made sliding member that slides relative to other members.

A stainless-steel corrugated pipe assembly, including a stainless-steel corrugated pipe, a water inlet connector connected to an end of the stainless-steel corrugated pipe, and a water outlet connector connected to another end of the stainless-steel corrugated pipe. A water inlet assembly is arranged in the water inlet connector, and a water outlet assembly is arranged in the water outlet connector; a transfer pipe is connected between the water inlet assembly and the water outlet assembly, and the transfer pipe is arranged in the stainless-steel corrugated pipe. In condition of the water outlet connector being in a turned-on state, high-pressure water entering the water inlet assembly opens the water outlet assembly through the transfer pipe; while the water inlet assembly and the water outlet assembly are connected to water, part of the stainless-steel corrugated pipe in the water inlet connector and the water outlet connector is further sealed.

The utility model relates to a kind of ball type discharge valve.The ball type discharge valve includes discharge cylinder, metal ball, connecting rod and discharge driving element, when the working state of ball type discharge valve is in sealing state, metal ball and discharge hole rigid contact seal, avoid the influence of temperature on sealing effect, sealing effect is stable and reliable;Moreover, because the surface of metal ball has wear resistance and corrosion resistance, metal ball is not easy to wear, the probability of corrosion damage after long time use is lower, with longer service life.In addition, when ball type discharge valve is in sealing state, the gravity of metal ball is heavier, and it performs well under high pressure throttling in sealing state, which can meet the demand of precise flow control.Therefore, the above-mentioned ball type discharge valve has the advantages of stable and reliable sealing effect, precise flow control and long service life.

A fluid flow rate sensor, which may also be the basis of a valve for a fire suppression system, uses a sensing arm to convey motion of an obturation body or a valve closing member to a sensor system which evaluates the motion and generates a calibrated measure of the flow rate and / or an alarm signal in response if warranted. The obturation body and the valve closing member are capable of both rotation and translational motion, both of which are sensed using the sensing arm. The sensor system is isolated from the fluid within the valve.

The utility model relates to a kind of hydraulic control check valve and its valve core subassembly for hydraulic support stand column, valve core subassembly includes screw plug, screw shell, connecting sleeve and screw sleeve, first compression sleeve and second compression sleeve embedded in screw shell;The inner peripheral wall of screw shell has protruding part;First compression sleeve is arranged between protruding part and screw plug, and second compression sleeve is arranged between protruding part and connecting sleeve;Valve stem includes stem end and stem body part;Stem end is slidably connected with the protruding part of screw shell;Left side of stem end is formed as first sealing part, and right side is formed as second sealing part;Valve stem has initial position and right limit position, when initial position, first sealing part and first compression sleeve form first sealing fit;When right limit position, second sealing part and second compression sleeve form second sealing fit, and the sealing effect between valve stem and valve body is enhanced, the stability of the pressure that maintains valve stem in two positions is guaranteed, ensure the stability of one-way valve two-stage unloading process.

The utility model relates to the technical field of valve plate, concretely relates to a high temperature resistant valve plate structure, including valve plate, the inside middle part of valve plate is fixedly connected with sleeve, the inside of sleeve is opened has the insertion hole, the inside of valve plate is opened has the accommodation groove, sleeve will the accommodation groove divide into two groups same size, the fixedly connected with cooling pipe of accommodation groove, cooling pipe is multiple groups superposition structure design, the edge of valve plate is fixedly connected with reinforcing ring, reinforcing ring's extension to the outside of valve plate, the outside fixed connection of sleeve has fixed ring, the both ends fixed connection of fixed ring has reinforcing strip, the both sides of reinforcing plate extension to valve plate, the both sides fixed connection of accommodation groove has honeycomb board, form expansion space between honeycomb board and accommodation groove, compare with existing high temperature resistant valve plate structure, the utility model passes through the design of cooling pipe and honeycomb board, can reduce the steel bar use amount, still can carry out the cooling to the whole.

The present invention relates to the technical field of exhaust ball valves. Disclosed is an exhaust ball valve with an internal self-cleaning function. The exhaust ball valve comprises an exhaust ball valve main body (1), wherein the exhaust valve main body (1) comprises a connection pipe (2) and an exhaust pipe (3), the exhaust pipe (3) being mounted above the connection pipe (2); a partition plate (31) is mounted inside the exhaust pipe (3), a space below the partition plate (31) is a primary filtering space (32), and a space above the partition plate (31) is a secondary filtering space (33); mounting plates (11) are mounted at the joint between the connection pipe (2) and the exhaust pipe (3), and an auxiliary cleaning assembly (4) is mounted between the mounting plates (11); a blocking assembly (5) is provided on the partition plate (31); an end cover (7) is mounted above the exhaust pipe (3), an exhaust assembly (8) and a pressure gauge are mounted on the end cover (7), and the blocking assembly (5) is connected to the end cover (7); and the auxiliary cleaning assembly (4) can clean the primary filtering space (32), and the blocking assembly (5) can block air entering the secondary filtering space (33); therefore, when in use, the device can automatically clean the inner wall of the exhaust ball valve and remove dust remaining on the inner wall.

The application discloses an anti-impact bidirectional sealing butterfly valve and relates to the technical field of industrial valves.The anti-impact bidirectional sealing butterfly valve comprises a valve body, a sealing unit, an anti-impact unit and a detection unit, wherein the valve body is used for providing a mounting and fixing base for the sealing unit, the anti-impact unit and the detection unit; the sealing unit is used for controlling the opening and closing of the valve body; the anti-impact unit is used for avoiding the abrasion of the sealing unit caused by the water flow impact on the sealing unit; and the detection unit is used for detecting the water flow direction and controlling the anti-impact unit. After the sealing unit completes the sealing of the valve body, the detection unit detects the water flow direction in the valve body, the impact force of the water flow on the sealing unit is reduced through the anti-impact unit, the relative movement of the sealing part is avoided, the abrasion of the butterfly valve caused by the impact is reduced, and thus the service life of the butterfly valve is prolonged.