1618results about "Preventing unauthorised/accidental actuation" patented technology

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 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.

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 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 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 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.

The utility model provides a manual valve capable of preventing misoperation, which comprises a valve body, a valve core is arranged in the valve body, the top of the valve core is connected with a valve rod which is in sealing running fit with the valve body, the top end of the valve rod penetrates out of the valve body, and the top end of the valve rod is provided with a valve handle which is used for driving the valve rod to rotate so as to realize opening and closing of the manual valve, a self-locking mechanism which is matched with the valve rod to enable the valve rod to rotate within the range of 90 degrees so as to control opening and closing of the valve is arranged in the valve body; a character opening signboard and a character closing signboard are arranged on the outer surface of the top of the valve body, and the character opening signboard and the character closing signboard are arranged at an included angle of 90 degrees by taking the axis of the valve rod as an angular point; the valve handle is provided with an arrow board which rotates along with the valve handle and is used for pointing to the character opening signboard when the manual valve is fully opened and pointing to the character closing signboard when the manual valve is fully closed. By means of the self-locking mechanism, the character opening signboard, the character closing signboard and the arrow board, misoperation of the manual valve can be effectively prevented.

The invention belongs to the technical field of pipeline valves, and particularly relates to a resistance-free prevention valve. Comprising a discharge valve, a main valve and two check valves, and the two check valves are fixedly installed in an inner cavity of the main valve and divide the inner cavity of the main valve into an inlet cavity, a middle cavity and an outlet cavity. When the pressure difference between the inlet cavity and the middle cavity is larger than a set value, the discharge valve is closed, and when the pressure difference between the inlet cavity and the middle cavity is continuously smaller than the set value, the pressure difference discharge valve is opened, discharge and pressure reduction are conducted through the discharge channel, and the discharge valve is closed until the pressure difference between the inlet cavity and the middle cavity recovers to the set value; the anti-misoperation device is arranged in the discharge valve, so that misoperation discharge of the discharge valve caused by water pressure fluctuation in a pipeline can be effectively prevented, and water pressure loss is avoided; valve membrane abrasion is reduced, and the service life of the discharge valve is prolonged; and the pressure difference during drainage can be adjusted according to working conditions and requirements.

The utility model discloses a hydrogenation ball valve with a self-locking function, which belongs to the technical field of valves, and comprises a valve body, a valve core, a valve cover, a filling pressure detection self-locking mechanism, a valve rod and a valve cover positioning mechanism, the upper end of the valve element is connected with a valve rod used for enabling the valve element to rotate to open and close the ball valve. The valve body is provided with a filling pressure detection self-locking mechanism used for locking the ball valve when the hydrogen pressure of the hydrogen inlet end is larger than the safety range. And a valve cover positioning mechanism for positioning and locking the valve cover is mounted on the outer side wall of the valve body. By means of the mode, when the hydrogen pressure on the hydrogen inlet side is too large and a hydrogen pipe on the hydrogen outlet side is damaged, the valve element can be locked, and the ball valve cannot be communicated; and when the valve cover is mounted, bolts of the flange on the valve cover do not need to be symmetrically screwed one by one through the valve cover positioning mechanism and are screwed in sequence, so that the time of an operator is saved.

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

The utility model provides a positioning and locking structure for controlling the opening degree of a ball valve and a single crystal furnace cooling water system, and aims to solve the technical problem of high energy consumption during cooling of an existing single crystal furnace. The system comprises a positioning and locking structure for controlling the opening degree of the ball valve, the positioning and locking structure for controlling the opening degree of the ball valve comprises an adjusting piece connected with a valve rod, and the valve rod is driven by the adjusting piece to rotate so as to adjust the flow; the dial is connected with the valve seat and is positioned below the adjusting piece; the limiting piece comprises a limiting clamping block, and a first clamping groove and an inserting groove which are formed in the limiting clamping block; one end of the adjusting piece is connected with the first clamping groove in a clamped mode. And the dial is inserted into the slot. According to the utility model, the flow opening can be controlled, the turning position of the adjusting piece can be determined according to the flow change displayed by the water flow meter, and the opening of the ball valve is controlled, the supply of cooling water is reduced and the energy consumption is reduced on the premise of ensuring the required cooling water quantity of the single crystal furnace.

The invention provides a multistage hard sealing eccentric plug valve, and relates to the field of valves. A plug valve cover is arranged on the top end surface of the plug valve body; a plug valve rod is arranged in the plug valve cover; the upper part of the plug valve rod is fixedly connected with a control handle; an eccentric plug body is arranged at the lower part of the plug valve rod; the eccentric plug body is arranged in the plug valve body; the left part of the plug valve body is in threaded connection with an internal thread valve cavity; the internal thread valve cavity is aligned with the eccentric cock body in position; and two groups of mounting threaded holes are symmetrically formed in the outer part of the plug valve body in an annular array shape. When a limiting vertical plate makes contact with an auxiliary base, a stop base can penetrate through an auxiliary groove and extrude a limiting wedge block, then through a series of transmission, the limiting wedge block is inserted into the stop groove to limit a plug valve rod, and the problems that when a worker operates in a narrow space, an adjacent valve handle is likely to be touched by mistake, unexpected opening and closing of a valve are caused, and the working efficiency is high are solved. And the abrasion of the eccentric plug valve is accelerated.

The invention provides a method for regulating and controlling a hydrodynamic balance valve with a real-time load feedback function, and the method comprises the steps: collecting the strain, water level, gas, vibration and motor current data of the balance valve in real time, constructing and utilizing a comprehensive load balance model, and calculating the effective safety torque of the balance valve in real time at an edge calculation layer; a mechanical wear degradation factor is calculated based on the action history and the current variance of the locking mechanism, and the instantaneous instability risk probability is calculated in combination with the effective safety torque and the current locking torque; according to the instantaneous instability risk probability, an output mode of a locking mechanism is dynamically adjusted to execute a graded locking action; and periodically calculating a full-life-cycle health degree index, and automatically generating a maintenance or replacement work order when the full-life-cycle health degree index is lower than a preset threshold value. According to the invention, the conversion from passive alarm to active defense is realized, and the safety and operation and maintenance efficiency of the urban balance valve in rainstorm, heavy load and corrosion environments are obviously improved.

The utility model provides a coded locking valve, and belongs to the technical field of valves. The problem of insufficient use reliability is solved. The upper end of the valve rod extends out of the valve body, the lock shell is fixedly connected to the upper end of the valve body, the roller coded lock cylinder is fixedly connected to the upper end of the valve rod, the roller coded lock cylinder is located in the upper end of the lock shell, the roller coded lock cylinder and the lock shell are fixed in the vertical direction, and the upper end of the lock shell is sleeved with a lock cover which is fixedly connected with the roller coded lock cylinder; the blocking cover is hinged to the lock cover and can be opened around a hinge point, the side portion of the blocking cover is in threaded connection with an anti-disassembly screw in the horizontal direction, the side portion of the lock cover is provided with a blocking portion, and the end of the anti-disassembly screw is located below the blocking portion. The method has the advantages of higher reliability and the like.

Valve assemblies are described having a valve positioner, a ball valve assembly configured to be actuated by the valve positioner between an open state and a closed state, an indicator configured to provide visual indication of the state of the ball valve assembly, and a positioning pin configured between the valve positioner and the ball valve assembly, the positioning pin arranged to prevent installation of the valve positioner to the ball valve assembly in all but one orientation and to ensure installation in only one orientation.

The invention provides a self-adaptive locking state valve structure which comprises a valve body, a valve rod and a valve element, the valve rod and the valve element are arranged in the valve body, the valve rod comprises an outer rod rotationally connected with the valve element and an inner rod rotationally arranged in the outer rod, the outer rod is in threaded connection with the valve body, and the inner rod slides in the outer rod in the length direction of the outer rod; the valve structure further comprises an adjusting cap connected with the outer rod and a locking cap rotating on the adjusting cap and connected with the inner rod, a connecting block is connected to the bottom wall of the locking cap, a connecting groove allowing the connecting block to rotate in is formed in the top wall of the adjusting cap, and the connecting block is used for limiting the locking cap to be disengaged from the adjusting cap in the length direction of the outer rod. A movable cavity allowing the end of the inner rod to move is formed in the end, close to the valve element, of the outer rod, a locking piece is arranged in the movable cavity and used for locking the outer rod and the valve element, the inner rod is separated from the adjusting cap along with the locking cap to open locking of the locking piece, and the inner rod is close to the adjusting cap along with the locking cap to close locking of the locking piece. In this way, the rotary connection of the outer rod and the valve element is locked, external mistaken touch is reduced, and the use safety of the corrugated pipe valve is improved.

The utility model discloses a manual valve which comprises a valve shell and a valve assembly. The valve assembly comprises a main shaft, a diaphragm and a hand wheel, the hand wheel drives the main shaft to rotate, and the main shaft rotates to drive the diaphragm to reciprocate in the axial direction to open and close the fluid channel. A tooth part is arranged at the top of the valve shell; the hand wheel comprises a skirt part, and a notch is formed in the skirt part; a locking piece is rotationally connected to the hand wheel, and a limiting convex part is arranged on the side part of the locking piece; wherein the skirt part elastically deforms when the limiting convex part passes through the notch, and resets to keep the locking position after the limiting convex part passes through the notch and is meshed with the tooth part. The locking piece is rotationally connected to the hand wheel, meanwhile, the tooth part is arranged on the valve shell, a user can rotate the locking piece to penetrate through the notch to be meshed with the tooth part, the tooth part can limit the locking piece in the circumferential direction, the situation that the hand wheel is collided or rotates when the user operates mistakenly is avoided, the diaphragm is kept at the set position, and the safety of the valve is improved. Therefore, the fluid channel is kept in a closed state or a state in which the set flow of liquid flows.

The invention discloses a turnover limiting butterfly valve, which belongs to the technical field of valves, and comprises a valve seat and a liquid inlet pipe, an upper cover is arranged at the top end of the valve seat, a connecting pipe is arranged between the valve seat and the liquid inlet pipe, the connecting pipe is respectively communicated with the valve seat and the liquid inlet pipe, a liquid outlet is formed in the bottom surface of the valve seat, and a sealing plug for blocking the liquid outlet is arranged in the valve seat. A valve element is clamped to the sealing plug, a side wing is arranged on the peripheral face of the valve element, a through opening is formed in the peripheral face of the valve seat, the end, away from the valve element, of the side wing penetrates through the through opening, and a locking piece used for being detachably connected with the upper cover is arranged on the side wing. The butterfly valve has the effect of reducing the butterfly valve application cost of a user.

The invention discloses a connecting end of a fluid connector, which comprises a valve body, a valve core and an operating handle, and further comprises a lock bead, a locking ball and a locking device, which are all mounted on the operating handle, and when the lock bead is prevented from rolling out of a containing groove, the lock bead can prevent the operating handle from moving relative to the valve body; the lock pin can move to an abutting position to prevent the lock bead from retreating from the containing groove, and can move to an unlocking position to relieve the blocking of the lock bead, so that the valve element can move relative to the valve body; one end of the operating pin is exposed out of the operating handle to serve as an operating end, the other end of the operating pin is used for abutting against the lock pin, and the moving direction of the operating pin and the moving direction of the lock pin are arranged in a crossed mode so that the lock pin can be pushed to retreat from the abutting position to move to the unlocking position during pressing. The connecting end can effectively solve the problem that the unlocking operation of the operating handle is inconvenient. The invention further discloses a fluid connector comprising the connecting end.

The present invention provides a pneumatic valve system for easily attaching and sealing a valve coupler to a valve stem for filling an inflatable vessel such as a tire, tube, mattress, etc. The valve system may comprise the following major components: a valve stem, a valve cap with a pin passage and attachment structure for attaching to a valve coupler, a sealing member, a biasing member, the valve coupler comprising a coupler housing, a pin seat, an inflation pin, and a collar with ball bearings complementary to the attachment structure of the valve cap, and an elastic sleeve for providing inward force against the ball bearings. The valve system may allow for easy, secure, and sealed engagement between the valve coupler and valve stem by simply pushing down on the valve coupler, and disengagement by pulling up on the valve coupler with as little as two fingers.

The utility model relates to a radiator constant temperature control valve which comprises a valve body which is in a vertical tubular shape, and a medium outlet is formed in the side wall of the lower portion of the valve body. The valve element is coaxially arranged in the valve body and is in rotary sealing fit with the valve body, a valve element cavity is formed in the bottom of the valve element, a valve element outlet used for communicating the valve element cavity with the medium outlet is formed in the cavity wall of the valve element cavity, and the vertical width of the valve element outlet gradually changes in the circumferential direction of the valve element; the flow adjusting piece is fixedly connected to the top end of the valve element and is in running fit with the inner wall of the valve body, and the top of the flow adjusting piece is located outside the valve body; the protective cap is in an inverted cup shape, and a matched detachable fixed connection structure is arranged between the inner wall of the protective cap and the outer wall of the upper part of the valve body; and a matched insertion positioning structure is arranged between the bottom of the hand wheel and the top of the flow adjusting part. The opening degree and the flow Kv value of the valve are controlled respectively, the accuracy of valve flow adjustment can be effectively improved, the opening degree of the valve can be automatically adjusted according to the environment temperature, and it is guaranteed that the environment temperature is basically constant.

The invention relates to the technical field of valve bodies, and provides an opening adjusting valve with discharge protection and emergency shut-off, which comprises a main valve body, a driving unit and a valve core assembly, the main valve body comprises a valve cavity with a water inlet end and a water outlet end, the valve core assembly is arranged in the valve cavity, the opening adjusting valve further comprises a check valve core, the valve core assembly and the check valve core are sequentially arranged in the valve cavity, and the valve core assembly and the check valve core are arranged in the valve cavity. A middle cavity is formed between the valve element assembly and the check valve element, the valve element assembly is connected with the driving unit, the driving unit controls the valve element assembly and the check valve element to be opened in one direction from the water inlet end to the water outlet end, the valve element assembly comprises a valve rod, a valve plug and a pressure lock pin unit, and the valve plug is connected with the valve rod in a lockable mode. When the valve plug and the valve rod are in an unlocked state, the valve plug and the valve rod have the freedom degree of moving in the vertical direction, and the anti-backflow reversing valve enables the valve plug and the valve rod to be locked or unlocked according to the pressure of the water inlet end and the pressure of the water outlet end. The problems that in the prior art, anti-backflow response of an opening degree adjusting valve is not timely, and reliability is difficult to maintain for a long time are solved.

The invention discloses a self-locking emergency cut-off valve device for a gas pipeline. The self-locking emergency cut-off valve device comprises a valve body, a valve cover, an electromagnetic valve, a valve rod, an elastic piece and a pressure sensor. The valve body is provided with an air inlet channel, a cut-off channel, an air outlet channel and a containing cavity, and the three channels intersect in the containing cavity. The valve cover is mounted on the valve body, and a first through hole communicated with the cut-off channel and a second through hole communicated with the outer peripheral wall of the valve cover and the inner wall of the first through hole are formed in the valve cover; the electromagnetic valve is mounted on the valve cover; the valve core extends into the first through hole through the second through hole; the valve rod is movably arranged in the first through hole and the cut-off channel in a penetrating mode and extends to the containing cavity. The end, located in the containing cavity, of the valve rod is connected with a sealing head. The valve rod is provided with a first limiting groove and a second limiting groove which are distributed in the axial direction. The elastic piece is located in the containing cavity, and the two ends of the elastic piece abut against the sealing head and the cavity wall of the containing cavity correspondingly; the pressure sensor is arranged on the valve body and electrically connected with the electromagnetic valve. The problem that a valve rod of an existing valve device is not firmly fixed in a cut-off state is solved.

The utility model discloses a corrosion-resistant high-pressure fire extinguisher valve structure which comprises a valve body, a nozzle communicated with the inside of the valve body is arranged on the side wall of the valve body, the lower end of the valve body is detachably connected with a vertical pipe seat, a handle is arranged at the upper end of the valve body, a convex ring is arranged on the outer side wall of the valve body and located between the handle and the vertical pipe seat, and the top of the convex ring is close to the handle. The bottom of the convex ring is far away from the handle, the valve body is sleeved with an O-shaped ring, the O-shaped ring is located at the bottom of the convex ring, the part, located at the bottom of the convex ring, of the valve body is wedge-shaped and sleeved with the O-shaped ring, the inner side of the convex ring is fixedly connected with the valve body, the outer side of the convex ring is provided with a plurality of L-shaped locking blocks, and the locking blocks are evenly distributed in the circumferential direction of the convex ring. One side of the locking block is in damping sliding connection with the protruding ring in the radial direction of the protruding ring, the magnetizer and the pull ring are fixed to the other side of the locking block, the magnetizer is located on one side of the locking block and forms a U-shaped structure together with the locking block, and the pull ring is located on the other corresponding side of the locking block. The utility model has the beneficial effect that the valve body is convenient to disassemble.

The invention belongs to the technical field of valves, and discloses a speed regulation switch valve and a bubble machine, the speed regulation switch valve is used for regulating the flow speed of a gas-liquid mixed material flowing out of the bubble machine, the speed regulation switch valve comprises a valve body, a connecting piece, a valve element, a water outlet structure, a T-shaped pin and a handle, the handle is rotated to be in a horizontal state, at the moment, a first channel is directly communicated with a third channel; the second channel and the fourth channel are oppositely communicated, and the material liquid outlet flow speed is fastest; the handle can be rotated to any other position to stop, so that the outlet of the first channel does not directly face the inlet of the third channel, the inlet of the second channel does not directly face the outlet of the fourth channel, and the primary adjustment of the material flow rate is realized; materials pass through the water outlet structure, due to the fact that the aperture of the water outlet hole is reduced, the pressure of the materials reversely pushes the T-shaped pin to slide towards the second channel in the axial direction of the material outlet channel, the distance between the T-shaped pin and the outlet of the second channel is reduced, the flow speed of the materials is adjusted again, and the flow speed of the materials is adjusted obviously through two times of speed adjustment.