2111results about "Preventing unauthorised/accidental actuation" patented technology

The present disclosure discloses a valve with dual ball valves, including two ball valves arranged side by side and clamped with each other, wherein each ball valve includes a valve body, a ball body, a valve rod and a handle, clamping structures are respectively and correspondingly arranged on one surfaces of the two valve bodies abutting against each other, and each ball valve further includes a limiting seat, a first anti-misoperation device and a second anti-misoperation device. The first anti-misoperation devices ensure that the handles can be rotated freely only when the two ball valves are in a clamped state. The second anti-misoperation devices ensure that the handles can only be rotated when external force is applied to the handles. Misoperation on the valve is prevented through triple protection.

The three-piece type high-pressure ball valve structure with the lock comprises a valve body and connectors symmetrically arranged on the left side and the right side of the valve body, a ball core is arranged in the valve body, a valve rod is connected to the top of the ball core in an inserted mode, and valve seats matched with the ball core are arranged on the left side and the right side of the valve body respectively. The left side and the right side of the valve body are each provided with a sealing ring, and the sealing rings and the valve seats are coaxially arranged. Through the arrangement of the annular cavity, the first elastic piece, the first flow channels, a piston column, a movable plate and the like, when the valve is in a closed state, the pressure of the liquid inlet end is increased, a belleville spring gets close to a ball core, the first elastic piece deforms, and hydraulic oil in an extrusion cavity and the annular cavity enters the multiple first flow channels; the multiple piston columns move towards the outer side and extrude the sealing ring, the sealing effect on the two sides of the sealing ring can be enhanced at the same time after the sealing ring is deformed, and the higher the pressure in the valve is, the better the sealing performance of the valve body and the connector is.

The invention relates to a pneumatic corrugated pipe stop valve, and relates to the technical field of stop valves, the pneumatic corrugated pipe stop valve comprises a valve body, a valve cover installed on the valve body, a valve clack located in the valve body and a valve rod driving the valve clack to slide, an air cylinder is fixedly arranged above the valve cover, and a piston is arranged in the air cylinder in a sliding mode; the side face, away from the valve deck, of the air cylinder is provided with an installation opening allowing the piston to be placed in, and a cover plate for blocking the installation opening is fixedly arranged outside the air cylinder. An upper air inlet and a lower air inlet for a compressed air pipeline to be connected in are formed in the periphery of the air cylinder, a push rod is fixedly arranged on the side face, facing the valve cover, of the piston, a mounting hole for the push rod to penetrate through is formed in the air cylinder, and the outer end of the push rod is coaxially and fixedly connected with the outer end of the valve rod; a first sealing ring is embedded in the inner wall of the mounting hole, a second sealing ring is embedded in the periphery of the piston, and a third sealing ring is embedded in the side face, facing the cover plate, of the air cylinder. The sealing performance and the stability of the pneumatic corrugated pipe stop valve are remarkably improved.

The invention provides a fluid coupler. The fluid coupler comprises a body, a supporting part, a valve assembly, a switch piece and an interlocking mechanism. The body is provided with a butt joint platform. The supporting part is annularly arranged at the first end of the body, is adjacent to one side, back to the butt joint surface, of the butt joint platform, is provided with a first mounting surface and a second mounting surface, and is internally provided with a limiting cavity and a clamping bolt hole; and the limiting cavity axially penetrates through the second mounting surface and the butt joint surface and is communicated with the safety bolt hole. The clamping bolt hole is opened in the first mounting surface and is communicated with the limiting cavity; the valve assembly comprises a ball core which is provided with a channel and is pivoted in the body. The switch piece is arranged on the first installation face and comprises a handle and a spring bolt, the handle is provided with a pivot joint part and a limiting groove, and the ball core is driven to rotate through the upper valve body. The interlocking mechanism comprises a safety bolt, a spring and a clamping bolt. The safety plug is arranged in the limiting cavity, and the spring provides elastic force so that the safety plug can be maintained at the preset position. The clamping bolt is arranged in the clamping bolt hole and provided with a limiting part and a locking part which are matched with the limiting groove and the safety bolt ring groove respectively so as to control locking and unlocking of the handle.

The utility model provides a quick-connection ball valve which comprises two ball valves, the two ball valves are in linear clamping connection, each ball valve is provided with a through hole for fluid to pass through, each ball valve comprises a valve body, a valve element is arranged in each valve body, each valve element is connected with a valve rod, the end, away from the corresponding valve element, of each valve rod extends out of the corresponding valve body, and the end, extending out of the corresponding valve body, of each valve rod is connected with a handle. The handle drives the valve element to rotate through the valve rod. And the valve body is provided with a locking device. The locking device comprises a locking groove and a locking column; the handle is in driving connection with the locking column. When the handle is closed, the locking column is arranged in the valve body; when the two ball valves are in butt joint and the handle is opened, the handle drives the locking column to stretch into the locking groove of the other ball valve, the locking device locks the two ball valves, the two ball valves are prevented from rotating and disengaging, fluid leakage caused by looseness is avoided, and the safety of valve body connection is improved.

The utility model discloses an anti-loosening sealing diaphragm valve which comprises a valve body, a valve cover, an actuator, a valve cavity, a valve rod, a flow channel, a valve clack and a diaphragm. An inner shell is arranged in the valve cavity, an inner sliding block which is limited in the inner shell and slides in the horizontal direction is arranged in the inner shell, an embedded block is fixedly arranged at the left end of the inner sliding block, an embedded groove is formed in the right end of the valve rod, and when the flow channel is cut off by the valve clack, the embedded groove is just located on the left side of the embedded block. A driving spring for providing driving force for the embedded block to be embedded into the embedded groove is arranged in the inner shell; and an inclined guide contact surface is arranged on the embedded block. The utility model has the following advantages and effects: the inner sliding block can keep moving leftwards under the driving force of the driving spring, and then can push the embedded block to be embedded into the embedded groove of the valve rod, so as to lock the valve rod; longitudinal reciprocating offset of the valve rod is avoided, and the sealing performance of the valve clack is improved.

The invention relates to the technical field of gate valve equipment, and discloses a meter-front copper gate valve with a magnetic lockable structure, which comprises a valve body which is used as a basic component of the whole device and is used for assembling and bearing all mechanisms and subordinate lower structural parts; the valve basic mechanism is arranged on the valve body and used for being matched with other structural parts to execute basic operation treatment of the valve; and the locking protection mechanism is arranged at the upper part of the valve body. By adding and arranging an extreme protection mechanism, under the extreme working condition, a thermosensitive alloy sleeve of the mechanism expands in a high-temperature environment to push a locking pin rod to be inserted into a valve rod locking hole, a valve rod is mechanically locked, and fluid leakage caused by high-temperature damage of the valve under the extreme conditions such as a fire disaster is prevented; after the temperature is reduced, the pin rod is automatically reset, locking is relieved, follow-up normal operation is not affected, the valve body can be actively protected under the extreme working condition through the treatment mode, and the accident risk is prevented from being increased due to valve failure.

The utility model discloses a two-way rotary sealing butterfly valve, which belongs to the technical field of butterfly valves and comprises a butterfly valve body, wherein a mounting block is connected to the top of the butterfly valve body; the utility model is provided with a protection component, wherein a pull rod is moved to drive a plug-in rod to move upward, the plug-in rod moves upward to squeeze a first spring, and then the protection cover is moved toward the end plate direction, and a connecting column is plugged into the inside of a plug-in cavity, and then the pull rod is released, the first spring is restored to its original appearance and drives the plug-in rod to be plugged into the inside of the connecting column, and under the action of the end plate and the protection cover, the components of a cleaning and de-cluttering mechanism can be protected, and dust and other impurities in the external environment are prevented from adhering to the components of the cleaning and de-cluttering mechanism, causing the components of the cleaning and de-cluttering mechanism to be blocked, thereby ensuring the normal service life of the components of the cleaning and de-cluttering mechanism, and at the same time, during the operation of the cleaning and de-cluttering mechanism, air circulation inside the protection cover can be ensured under the action of the vent.

The present disclosure discloses a valve with dual ball valves, including two ball valves arranged side by side and clamped with each other, wherein each ball valve includes a valve body, a valve rod and a handle, the valve bodies include abutting surfaces provided with clamping structures, and the valve rods make the ball valves switch between a through-flow state and a closed state in a process of rotating along its own axes. The ball valves further include first anti-misoperation devices and second anti-misoperation devices. The two anti-misoperation devices provide multiple protections for the ball valves to avoid misoperation on the valve.

The present invention provides a high-pressure solenoid valve with signal feedback and a manual-automatic self-locking device, comprising a valve body, a valve core assembly, an electromagnet and a manual switch, wherein a valve cavity is formed in the valve body, an intermediate flow channel is provided in the valve cavity, and a liquid inlet and a liquid outlet are connected through the intermediate flow channel; the valve core assembly is slidably fitted in the valve core cavity, and an elastic assembly is provided in the valve core cavity to make the valve core assembly have a downward movement tendency and block the outlet end of the intermediate flow channel; the electromagnet is installed at the upper end of the valve body, and is used to drive the valve core assembly to move upward; the manual switch is installed on the side wall of the valve body, and is used to manually move the valve core assembly upward and realize manual opening. The high-pressure solenoid valve with signal feedback and a manual-automatic self-locking device of the present invention has a compact structure, a small size, is safe and reliable, and has a good use effect.

The invention relates to the technical field of double-ball valves, and discloses a double-ball valve with a self-locking protection function, which comprises a ball valve shell, a mounting space is arranged in the ball valve shell, a fluid channel is arranged at the center axis of the ball valve shell, and a plurality of valve balls are arranged in the mounting space of the ball valve shell. The inner side of the sealing cover is arranged to be in the shape of the semicircular groove matched with the valve ball, so that the valve ball can stably rotate in the sealing cover; when the contact ring in the sealing cover extrudes the valve ball, the sealing cover drives the sliding ring to slide along the interior of the sealing cylinder and extrudes the multiple extrusion springs, and the extrusion effect of the contact ring on the sealing cover on the valve ball is enhanced through the counter-acting force of the extrusion springs. And a gap is prevented from being generated when the valve ball and the inner wall of the ball valve shell rotate, so that the flow of the double-ball valve can be more accurately controlled.

The invention discloses an ultralow-temperature forged steel stop valve which comprises a stop valve body, a valve rod shell, a valve rod, an expansion mechanism, a limiting mechanism, a water conveying mechanism, a frame, a reciprocating lead screw, a moving block, an L-shaped supporting rod, an arc-shaped limiting plate and a rotating head. The top of the valve rod is connected with an expansion mechanism, the bottom of the valve rod is connected with a valve clack, the valve clack is in sealed contact connection with a channel in the stop valve body, a limiting mechanism is arranged outside a valve rod shell, and a water conveying mechanism is arranged on the side wall of the stop valve body. And the limiting mechanism comprises a frame, a reciprocating lead screw, a moving block, an L-shaped supporting rod, an arc-shaped limiting plate and a rotating head, a valve rod can be limited and fixed, the situation that the valve rod rotates due to accidental touch of an operator is avoided, meanwhile, the interior of a valve can be quickly unfrozen, and then the machining efficiency is improved.

A control valve capable of accurately and easily adjusting a degree of a communication opening or a volume of a flow channel with a simple configuration is provided. A control valve (flow-rate regulator valve 16) includes: a valve housing 20 including a flow channel block 21 with a flow channel in which a fluid flows; a valve assembly 50 mounted on the valve housing 20 to be movable in a first direction and provided with a valve body 31 configured to change the degree of the communication opening of the flow channel; and an operation shaft 51a including a shaft section 53 inserted into an insertion hole 52 formed in the valve housing 20 and a tapered shaft section 54 being in contact with the valve assembly, and a position of the valve body through the tapered shaft section is adjusted by motion of the operation shaft in a second direction.

The invention provides a double-control mixing faucet valve element and a faucet, the double-control mixing faucet valve element comprises the following structures: a fixing assembly, the fixing assembly is provided with a water supply channel and a water outlet channel, the double-control mixing faucet valve element further comprises an adjusting assembly, a mounting cavity is formed in the fixing assembly, and the adjusting assembly is provided with a manual control water mixing cavity, an electric control water mixing cavity and a plugging part; the adjusting assembly moves in the mounting cavity, one of the manual control water mixing cavity, the electric control water mixing cavity or the plugging part is selected to be in butt joint with the water supply channel, and the double-control mixing faucet valve element is switched among a manual control mode, an electric control mode and a closing mode. The manual control mode and the electric control mode cannot control water outlet, and the situation that in the prior art, when an electromagnetic valve is damaged, a faucet leaks water is avoided. A plurality of pipe fittings are not needed for connection, the hidden danger of water leakage caused by untight connection of the pipe fittings is avoided, the overall structure is more compact, and meanwhile the complexity of later maintenance is reduced.

The utility model discloses a five-eccentric high-temperature hard sealing butterfly valve which comprises a valve body and a butterfly plate, a valve seat is arranged on the valve body, a sealing ring corresponding to the valve seat is arranged on the butterfly plate, a spherical cambered surface structure is arranged on an outer ring of the sealing ring, a valve shaft is further arranged in the valve body and penetrates through the valve body to be fixed with the butterfly plate, and a bottom cover is further arranged on the valve body. One end of the valve shaft penetrates through the valve body and abuts against the bottom cover. Compared with the prior art, the five-eccentric high-temperature hard sealing butterfly valve has the advantages that the spherical cambered surface structure and the perfect circular sealing surface of the valve seat form a linear sealing pair, forced linear sealing is formed based on medium pressure and torque applied by the valve shaft, the contact area of the linear sealing pair is small, the sealing effect is larger under the same torque force and pressure, and the sealing effect is better. And the perfect circular sealing specific pressure is uniform, the sealing zero-leakage performance is improved, the sealing device is particularly suitable for the working conditions of high temperature, ultralow temperature and temperature cross change, deformation generated by a sealing pair under the height difference is uniform, and the stability of the sealing performance can be guaranteed.

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

The high-sealing-performance ball valve comprises a ball valve shell and a spherical valve body, the ball valve shell comprises a mounting ball shell and a connecting pipe coaxially communicating with the two opposite sides of the mounting ball shell, the spherical valve body is rotationally arranged in the mounting ball shell with the same ball center, a valve hole is formed in the spherical valve body, and the inner diameter shape of the valve hole corresponds to the shape of the connecting pipe; a rotating inner rod is rotationally arranged in the mounting spherical shell in the radius direction, one end of the rotating inner rod is connected with the spherical valve body, a sealing assembly is arranged in the ball valve shell and comprises a mounting sealing ring and a first sealing air bag ring, and the mounting sealing ring is arranged on the inner ring wall of the connecting position of the connecting pipe and the mounting spherical shell; the first sealing air bag ring is arranged on the side wall, close to the spherical valve body, of the installation sealing ring, and the first sealing air bag ring is attached to the surface of the spherical valve body. The sealing structure has the effects of improving the sealing performance of the ball valve and prolonging the service life of the ball valve.

The utility model discloses a double-interlocking quick connector, which belongs to the technical field of pipeline connecting tools, and aims to solve the problem that the existing male and female connectors are poor in interchangeability and generality, the double-interlocking quick connector comprises a first half connector (37) and a second half connector (38), the structures of the first half connector (37) and the second half connector (38) are the same, the first half connector (37) comprises a connector main body (1), and the connector main body (1) is provided with an opening. A buckle (2), an inserting opening (20) and a clamping groove (21) are arranged at the front end of the connector body (1), the buckle (2) of the first half connector (37) can be connected with the clamping groove (21) of the second half connector (38) in a clamped mode, and the buckle (2) of the second half connector (38) can also be connected with the clamping groove (21) of the first half connector (37) in a clamped mode. The first half joint and the second half joint are not divided into male and female parts, and the double-interlocking quick joint has ultrahigh interchangeability and high universality, and is also very convenient to replace.

The present invention discloses a concentrated water regulating valve, comprising: a valve body, which has a water inlet, a water outlet and a discharge port, and a valve cavity is formed inside the valve body; a partition component, which is arranged in the valve body and divides the valve cavity into a first cavity and a second cavity, and a hole system penetrating the first cavity and the second cavity is opened on the partition component, the water inlet and the water outlet are connected to the first cavity, and the discharge port is connected to the second cavity; a valve core, which is arranged in the second cavity to change the flow cross section of the hole system; wherein: the first cavity is arranged as a columnar cavity; at least the water inlet is extended to the first cavity along the tangential direction so that the concentrated water enters the first cavity through the water inlet and then flows in a rotation. By extending the water inlet to the first cavity along the tangential direction, the hole system is continuously flushed to a large extent, and thus the hole system can be effectively prevented from being blocked due to crystallization, especially the end of the hole system where the hole opening is smaller can be effectively prevented from being blocked.

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

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 invention relates to the technical field of block valves, in particular to a self-compensation type intelligent block valve. Comprising a valve body, a ball body is rotatably connected in the valve body, the valve body is provided with a liquid inlet and a liquid outlet, the upper side of the ball body is fixedly connected with a valve rod rotatably connected with the valve body, the upper side of the valve body is rotatably connected with a rotating rod perpendicular to the space of the valve rod, and the upper side of the valve body is provided with a first cavity; the rotating rod and the valve rod are in transmission through a power module, the valve rod is in limited sliding connection with an inserting rod, and the inserting rod is fixedly connected with a limiting column. According to the cut-off valve, the limiting column is clamped into the upper side of the limiting groove to accurately control opening and closing of the ball body, whether the ball body is in the opening and closing state or not is directly fed back to an operator through the extending length of the inserting rod, and transmission deviation caused by problem observation of the operator or pipeline vibration is avoided; therefore, an operator misjudges the state of the cut-off valve, and normal operation of the cut-off valve is affected.

The self-cleaning type ball valve comprises a ball valve body and a leakage early warning device, the leakage early warning device comprises a ring body, an electric telescopic rod, a collecting groove, a sound sensor, a controller, an alarm and a sealing gasket, and one side of the ball valve body is fixedly connected with a first circulation pipeline. The leakage early warning device is arranged at the joint of the ball valve body and the external connecting pipeline, so that the joint can be monitored in real time, and early warning and secondary protection can be carried out when fluid medium leakage occurs, so that a worker is prompted to carry out maintenance; meanwhile, when a fluid medium flows through the ball valve body, the ball valve body can be self-cleaned through a first cleaning mechanism and a second cleaning mechanism, the situation that the ball valve body falls off and is in direct contact with the ground, and consequently the ball valve body is damaged can be avoided through a protection mechanism, and therefore early warning, cleaning and protection can be conducted on the ball valve body; the practicability and functionality of the ball valve body are enhanced, and the service life of the ball valve body is effectively prolonged.

The utility model discloses an anti-failure oil drain valve driving device which comprises a valve block, an oil drain valve connecting rod and a push-pull electromagnet, wherein the oil drain valve connecting rod is movably connected to the valve block, and the push-pull electromagnet is used for driving the oil drain valve connecting rod to act. The oil drain valve is characterized by further comprising an anti-failure mechanism which is connected to the oil drain valve connecting rod and plays a role in limiting the position of the oil drain valve connecting rod. The failure prevention mechanism comprises a second connecting screw rod connected to the oil drain valve connecting rod and a second electromagnet connected to the second connecting screw rod. Due to the arrangement of the anti-failure mechanism, after the oil drain valve is opened through the push-pull electromagnet, the position of the oil drain valve connecting rod is fixed through the anti-failure mechanism, the push-pull electromagnet can be powered off after being fixed, and the situation that the push-pull electromagnet fails due to the too high temperature after working for a long time and continuously rising the temperature is avoided.

The utility model belongs to the technical field of ball valves, and particularly relates to an adjustable bidirectional pressure-bearing eccentric semi-ball valve which comprises a valve body, two ends of the valve body are respectively connected with a liquid inlet pipe and a liquid outlet pipe, the upper end of an eccentric shaft penetrates out of the valve body to be connected with a turbine, and a driving main gear is arranged on the eccentric shaft. The liquid inlet pipe and the liquid outlet pipe are provided with pressure adjusting mechanisms connected with the driving main gear in a meshed mode, the liquid inlet pipe and the liquid outlet pipe are connected with a pressure pump through a pressure pipe, and the bottom of the liquid inlet pipe and the bottom of the liquid outlet pipe are connected with pressure release valves through pressure release pipes. The pressure pump and the pressure release valve are used for adjusting the internal pressure of the valve body to be the same as the internal pressure of the liquid inlet pipe and the liquid outlet pipe, the turbine transmission rod is rotated to drive the eccentric shaft to rotate, the ball body and the pressure adjusting valve are synchronously driven to rotate by driving the main gear and the driven gear to be meshed, and synchronous opening and closing of the valve body and the liquid inlet pipe and the liquid outlet pipe can be rapidly achieved. The ball body is prevented from deflecting; and when liquid enters the valve body, the eccentric shaft and the ball body rotate more stably and safely, and convenience is brought to rotating operation of maintenance personnel.

The invention discloses a novel variable flow channel liquid cooling plate applied to an automobile power battery and an energy storage battery. The variable flow channel liquid cooling plate cooling equipment is applied to battery cooling and comprises a plate cooling mechanism, a plate cooling mechanism, a plate cooling mechanism and a plate cooling mechanism, the valve mechanism is arranged above the cold plate mechanism; the locking mechanism is arranged in the valve mechanism; the locking mechanism is used for fixing the valve mechanism after the valve mechanism enters a corresponding working condition; the valve mechanism is matched with the cold plate mechanism with six linear runners arranged side by side left and right to achieve switching of runner types. The optimal flow channel form suitable for the current target can be switched under different targets such as heating or cooling of the battery, the heating and cooling efficiency of the liquid cooling plate on the battery can be remarkably improved, and the required energy consumption is reduced.

The utility model relates to the technical field of flow valves, in particular to a three-way switch valve with a locking function, which comprises a three-way valve assembly, the three-way valve assembly comprises a valve core, the valve core is arranged in the three-way valve assembly, and the valve core is rotatably arranged; the three fluid valve ports are formed in the three-way valve assembly respectively, and circulation of the fluid valve ports is switched through rotation of the valve element; the rotating handle is fixedly connected with the valve element and used for driving the valve element to rotate; the locking mechanism is arranged on the rotating handle, a locking pin is arranged on the locking mechanism, a locking hole is formed in the position, corresponding to the locking pin, of the three-way valve assembly, and when the locking pin is inserted into the locking hole, rotation of the rotating handle is limited. According to the utility model, the valve can be ensured not to change accidentally at a specific position. The problem that a valve element of a traditional three-way ball valve shifts due to external factors is solved, and meanwhile the requirements for rapid emptying and fluid switching in air source treatment can be met.

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