17 results about "Left valve" patented technology

The utility model relates to a valve field technical field, a split type lock residue valve, including left valve body and right valve body, left valve body is connected through bolt and right valve body screw thread, left valve body upper end is fixedly connected with valve seat, the inner wall of valve seat is fixedly connected with sealing washer, the inner wall of sealing washer is fixedly connected with valve rod, the upper end of left valve body is connected with protection mechanism and is opened through the control aluminum alloy material's protection strip outside left valve body and right valve body, make the recess of protection strip inside will be caught on the bolt of left valve body and right valve body both ends, play the effect that protection strip protects outside, and protection cover will cover the lower end of arc -shaped seat again and protect, improve the corrosion intensity of installation position, make the stability and service life of whole valve.

This invention discloses a high-temperature resistant, zero-friction, soft-seal ball valve. The ball valve includes a valve body, a ball, a valve stem, a valve cover, and an actuator. The left valve stem has an inlet channel A, and the right valve stem has an outlet channel A, forming a first cooling circuit flowing through the ball. The valve cover has an inlet channel B and an outlet channel B, forming a second cooling circuit flowing through the valve cover. The valve body has an inlet channel C and an outlet channel C, forming a third cooling circuit flowing through the valve body. An inflatable and deflated sealing ring is provided between the valve cover, valve seat, and the ball's sealing surface. The valve cover has a vent channel connected to the sealing ring's inflation port and a pneumatic control system. The pneumatic control system includes a filter pressure reducing valve, a solenoid valve, a pneumatic control valve, a quick-release valve, and a pressure transmitter, and controls the inflation and deflation of the sealing ring through a control center. This invention cools the sealing ring through a dual cooling circuit, successfully applying soft sealing to high-temperature conditions.

This quick-acting check valve has two ends of its body for connecting to the feed pipe. One end of the valve body contains a guide rod, on which a left and right valve disc are fitted. The back of each valve disc has a connecting part. A screw is located inside the valve body, with one end extending out of the valve body. The screw inside the valve body is divided into upper and lower sections. The upper section has clockwise threads, and the lower section has counterclockwise threads. A sleeve is fitted on the upper section, and another sleeve is fitted on the lower section. One sleeve is movably connected to one end of a connecting rod, and the other end of this connecting rod is movably connected to the connecting part on the back of the right valve disc, driving the right valve disc to open and close. The other sleeve is movably connected to one end of another connecting rod, and the other end of this connecting rod is movably connected to the connecting part on the back of the left valve disc, driving the left valve disc to open and close. The left and right valve discs are used to open and close one end of the valve body. Advantages include: good sealing due to the connecting rod, rapid response, and improved sealing due to the beveled design.

The application discloses a multifunctional air control coaxial valve, and belongs to the valve field, which is mainly composed of a valve body, a valve core, a piston valve sleeve and a limiting assembly, wherein the valve core can slide among the left position, the middle position and the right position; when the piston valve sleeve moves to the most right side and the valve core is located in the middle position, the left valve port is closed and the right valve port is opened; when the piston valve sleeve moves to the most left side and the valve core is located in the left position, the left valve port is closed; when the valve core is located in the right position, the right valve port is closed; the limiting assembly can control the sliding of the valve core; the limiting assembly can be switched among the first state, the second state and the third state; when the limiting assembly is in the first state, the limiting assembly limits the valve core in the middle position; when the limiting assembly is in the second state, the limiting assembly limits the valve core to slide between the middle position and the left position; when the limiting assembly is in the third state, the limiting assembly limits the valve core to slide between the middle position and the right position; the application can realize the control function of the medium flow direction; and the control is convenient and the operation is simple without disassembly.

This utility model discloses a quick connector assembly, including a left connector assembly and a right connector assembly. The left connector assembly includes a left spring and a left valve core, and the right connector assembly includes a right connector body. The right connector body is provided with a right spring, a right valve core, and a floating piston. The right spring can push the floating piston to the left, causing the right valve core to block the floating piston. The right end of the left connector assembly is provided with a plug-in part, and the outer wall of the plug-in part is provided with a protrusion. The right connector body is provided with a waist hole, and a locking groove is provided on the left side of one end of the waist hole. The other end of the waist hole is provided with a plug-in groove leading to the left end of the right connector body. This utility model utilizes the cooperation structure of the protrusion, waist hole, and locking groove, combined with the elastic return characteristics of the left and right springs, to replace the traditional threaded connection, realize quick plugging and locking, significantly shorten the disassembly and assembly time, and improve the ease of use of folding bicycles.

The utility model belongs to valve technical field, concretely relates to a gas pipeline temperature and pressure monitoring control valve, including left valve body, right valve body and the ball core with V -shaped opening, ball core is located in right valve body, left valve body and right valve body are connected through connecting bolt, and the watchcase is arranged on right valve body top, and the watchcase is arranged with executing mechanism, and the output end of executing mechanism is connected with ball core one end, and the other end of ball core is rotatably connected with right valve body inner wall. The V-shaped opening on the ball core and the flow passage of the valve can form a sector area. During the rotation, the cross-sectional area of the flow passage can be changed to accurately regulate the flow of gas. When the ball core is rotating to close, the ball core can contact the sealing ring to compress the two compression springs. The outer wall of the ball core is in close contact with the sealing ring through the pressure of the spring, improving the sealing performance.

This invention relates to a bidirectional high-temperature and high-pressure spring-loaded safety valve, belonging to the field of valve technology. It includes a valve body, valve seat, valve disc, guide sleeve, valve cover, and spring pressure setting device. The valve body has a left channel and a right channel, with a switching valve positioned between them. When the medium pressure in the left channel is greater than that in the right channel, the medium pressure pushes the switching valve disc to the right, sealing it with the right valve seat. The valve seat flow channel orifice connects to the left channel, and the valve seat outlet cavity connects to the right channel via a right check valve, forming a discharge channel. Conversely, when the medium pressure in the right channel is greater than that in the left channel, the medium pushes the switching valve disc to the left, sealing it with the left valve seat. The valve seat flow channel orifice connects to the right channel, and the valve seat outlet cavity connects to the left channel via a left check valve, forming a discharge channel. This achieves bidirectional discharge functionality, reduces the number of safety valves required, and lowers equipment installation costs.

The application discloses a kind of one-way valve airtight inspection device and method before welding, device structure, sleeve inside is equipped with two sealing grooves, end face is equipped with a sealing groove;Left sleeve nut has two sealing parts, and is sealed with left connector cooperation, right sleeve nut and right connector cooperate sealing;Device inside is equipped with pad, internal hexagon bolt and top rod.The use method of the application is as follows: top rod and pad screw are respectively loaded into one-way valve, left and right valve core are respectively pulled apart, sleeve, right connector, right sleeve nut and rubber ring are sequentially installed on the right end of one-way valve, left connector, left sleeve nut and rubber ring are sequentially installed on the left end of one-way valve, respectively keep right and left valve core closed state, realize airtightness check before welding to left and right valve core.The airtightness inspection device of the application can be widely applied to the field of one-way valve airtightness check before welding, with the advantages of simple structure, reliable sealing and novel structure.

The utility model provides a kind of electro-hydraulic electromagnetic reversing valve with position feedback, including main valve part and the two electromagnetic reversing valves of left and right ends located in the main valve part, the main valve part includes main valve body, valve core hole is opened in the main valve body, left valve core and right valve core are equipped in the valve core hole.The utility model adds the magnetic pressure-resistant switch in contact with the top of left valve core or right valve core on the upper end surface of main valve body, the movement of left valve core or right valve core can be sensed, and its left and right reversing condition is monitored;Device structure is simple, processing is convenient, it is favorable to improve device overall quality and reduce cost, also convenient to load and unload and maintenance.

The application discloses a kind of anti-freezing corrosion rotary disc valves for high-pressure oil and gas pipeline, belong to valve technical field.The valve is connected by stud nut and is formed valve body by left valve body, right valve body and intermediate ring, and the intermediate ring is equipped with disc with valve hole, and disc is cooperated with gear disc and is slidably arranged in intermediate ring;Small gear shaft is mounted on valve body, gear disc is eccentrically connected to small gear shaft, disc is rotatably connected to valve body by positioning pin, and intermediate ring top is equipped with grease injection valve.Working time, small gear shaft drives gear disc to do circumferential motion, drives disc to rotate around positioning pin to realize opening and closing, adopts circumferential rotation opening and closing mode, and sealing surface only contacts in fitting position, significantly reduces friction and wear;Through grease injection valve, lubricating grease can be directly injected on site, without disassembly maintenance, improve sealing and lubricating performance.The application effectively solves the problems of large opening and closing friction, easy wear of sealing surface, inconvenient maintenance and the like, and is suitable for high-pressure oil and gas pipeline working condition.

The utility model discloses a main valve structure of high pressure pneumatic cleaning device, including valve body, valve ball, left valve pipe spare, right valve pipe spare, the inside of valve body is provided with valve cavity, valve ball rotation is connected in the inside of valve cavity, the left side of valve body is fixedly connected with left valve pipe spare through flange spare, left valve pipe spare other end is connected with gas pressure system, be provided with pneumatic seal spare in left valve pipe spare, pneumatic seal spare and valve ball left side contact, the right side of valve body is fixedly connected with right valve pipe spare through flange spare, right valve pipe spare other end is connected with cleaning device, be provided with spring seal spare in right valve pipe spare, spring seal spare and valve ball right side contact. The utility model discloses a kind of main valve structures of reliable sealing, effectively improve service life and safety.

This utility model relates to the field of pipeline shut-off technology, specifically to a quick-cut blind valve that is easy to maintain. It includes a left valve body, with a right valve body located on the right side of the left valve body. The left and right valve bodies are connected by a clamping double-ended bolt. A blocking assembly is disposed inside the left valve body, comprising a valve plate made of aerospace-grade aluminum alloy. The surface of the valve plate has a shaped groove, the inner wall of which is fitted with a sealing ring. By using a shaped groove to embed the sealing ring, the problem of O-rings falling off due to adhesion is avoided, while overcoming the difficulty of replacing vulcanized rubber rings. The contact between the sealing ring and the inner wall of the left valve body enhances the media blocking effect. Simultaneously, the shaped groove structure mechanically limits the sealing ring, maintaining stable sealing performance even under high-temperature conditions. The modular design allows for individual replacement of the sealing ring without disassembling the entire valve.

The present application relates to the field of hydraulic transmission and control technology of engineering machinery, disclose a kind of multi-way valve and control method for medium excavator, to solve the problem of traditional multi-way valve inlet and return coupling, flow distribution inflexible, low control precision, high energy consumption.The multi-way valve includes parallel left valve body and right valve body, and the inlet and return of the actuator is controlled by independent single valve core, breaking the coupling relationship of traditional four-way spool;Core working valve core is matched with electro-hydraulic actuator, and independent closed-loop control of valve core displacement and flow is realized by built-in displacement sensor;Valve body integrates double pump dynamic confluence, boom oil regeneration, arm differential regeneration cut-off, straight walking anti-deviation oil path.The present application has high control precision, good composite action smoothness, system energy utilization rate and strong working condition adaptability, high integration, reliable operation, suitable for medium excavator batch promotion and application.

This invention belongs to the field of pneumatic control ball valves, particularly pneumatic control ball valves for gas-liquid multiphase flow media and their operating process. Addressing the problem of inconvenient maintenance and cleaning of existing pneumatic control ball valves for gas-liquid multiphase flow media, the following solution is proposed: It includes a power unit for power output, a valve stem for transmission, and a valve for sealing. The output end of the power unit is fixedly connected to the top of the valve stem, and the bottom of the valve stem is detachably connected to the top of the valve. Valve bodies are provided on both sides of the valve surface. The left valve body is fixedly connected to the surface of the power unit, and the left side of the right valve body contacts the surface of the left valve body. This invention solves the problem of inconvenient maintenance and cleaning of existing pneumatic control ball valves for gas-liquid multiphase flow media by incorporating a power unit, valve stem, valve, valve body, positioning structure, connecting flange, sealing plate, and limiting structure.

The utility model discloses a top-mounted wear-resistant ball valve which comprises a valve body, a valve cover is fixedly installed on the top of the valve body through a bolt, a valve ball is installed in the valve body, a lower fixing shaft is integrally formed in the center of the bottom of the valve body, a valve rod is integrally formed on the top of the valve ball, and a driving device is fixedly installed on the top of the valve cover and connected with the top of the valve rod. A left cylindrical valve seat and a right cylindrical valve seat are sleeved with a left inlet and a right inlet of the valve body, threaded sleeves are arranged at the outer ends of the left valve seat and the right valve seat respectively, elastic supporting devices are circumferentially distributed between the left valve seat and the threaded sleeves and between the right valve seat and the threaded sleeves, and an annular stepped left inner cavity is formed in the inner wall of the left valve seat. The side-mounted left valve seat and the side-mounted right valve seat can be rapidly replaced by detaching the threaded sleeves, pressure is prevented from directly acting on the inner wall of the valve body, the annular step left inner cavity is a stepped pressure reduction channel, medium erosion is reduced, the elastic supporting device dynamically compensates pressure fluctuation, it is guaranteed that the attaching pressure of the valve ball and the left valve seat and the attaching pressure of the valve ball and the right valve seat are constant, and the service life of the valve ball is prolonged. The medium leakage rate is reduced, and the sealing life is prolonged.