211 results about "Mechanical valve" patented technology

The utility model discloses a portable auxiliary tool for quickly operating a mechanical valve, which comprises an auxiliary wheel (1), the center of the auxiliary wheel (1) is rotatably connected with a rotating rod (2), and the bottom end of the rotating rod (2) is provided with a plurality of clamping jaws (3) for fixing a valve hand wheel (5). Aiming at a mechanical valve with a hand wheel with a large number of rotation turns but small resistance torque, the large-size valve operating device has the characteristics of assisting in single-hand operation of a large-size valve and improving the operating efficiency of the large-size valve.

A filtering facepiece respirator is provided. The filtering facepiece respirator includes a facemask adapted to fit over the nose and mouth of a wearer, where the facemask comprises a mask body containing a filtering structure. A harness is coupled to the mask body for securing the facemask on the face of the wearer, and a mechanical valve is coupled to a portion of the mask body proximate the wearer's mouth. The valve may be adjusted between a first mode of operation and a second mode of operation, where in the first mode of operation is permitted to flow through the valve on exhalation but not on inhalation and in the second mode of operation air is obstructed from flowing through the valve on exhalation and inhalation. There is an optional third mode of operation where air is permitted to flow through the valve on inhalation and exhalation.

The calibration method of the mechanical valve is applied to respiratory support equipment and comprises the steps that the mechanical valve is controlled to be opened according to at least three different preset opening states; acquiring corresponding current data and gas flow data of the mechanical valve in different preset opening states; wherein the mechanical valve in a preset opening state corresponds to a group of current data and gas flow data; performing linear fitting on the current data and the gas flow data to obtain linear model parameters; the linear model parameters are input into a preset linear dynamic compensation function, and dynamic compensation parameters corresponding to the mechanical valve are obtained through calculation; and performing dynamic calibration compensation on the original corresponding relation between the current data and the gas flow data according to the dynamic compensation parameters to obtain a new corresponding relation between the current data and the gas flow data. In this way, accurate and efficient dynamic calibration compensation can be carried out on the original corresponding relation between the current data and the gas flow data of the mechanical valve.

The utility model relates to the technical field of floor drains, in particular to a deodorant antibacterial floor drain, which can be used for ground drainage or water pipe drainage and comprises a first cylinder and a second cylinder, the first cylinder is provided with a water storage portion, the second cylinder is provided with a drainage portion, and the drainage portion is sleeved in the water storage portion. A certain distance is formed between the outer wall of the drainage part and the inner wall of the water storage part, an overflow port is formed in the top of the water storage part, and an annular non-return cover which can move up and down under the hydraulic action like a piston is arranged above the overflow port, so that a water seal and mechanical valve structure is formed; a protruding part is arranged on the inner bottom face of the water storage part and located on the inner side of the water drainage part in the radial direction of the water drainage part. The protruding part can reduce the area of the inner bottom face, so that the speed of water flowing from the water discharging part to the water storage part is increased, impurities mixed in the water can be conveniently taken away by the water, deposition at the bottom of the water seal is reduced, the interior of the water storage part is kept clean, and odor and reptiles are prevented from reversely entering a room.

The utility model discloses a gas extraction parameter routing inspection regulation and control device which comprises receiving and extracting pipes, a confluence sampler, a gas guide pipe rotating shaft group, a rotating gas guide pipe and a rotating arm, and the side face of the confluence sampler is connected with the corresponding receiving and extracting pipes. One end of the gas-guide tube rotating shaft group is connected with a driving device, and the other end of the gas-guide tube rotating shaft group is communicated with a measuring device. One end of the rotary gas-guide tube is fixed and communicated with the gas-guide tube rotating shaft group, and the other end of the rotary gas-guide tube is communicated with any receiving and pumping tube along with the rotation of the gas-guide tube rotating shaft group. And when the rotary air guide pipe in the same direction as the rotary arm is communicated with the receiving and pumping pipe, the valve regulation and control device of the rotary arm acts on the mechanical valve of the receiving and pumping pipe. According to the utility model, the circulating conduction of each drilling hole and the confluence cavity with the measuring device and the synchronous regulation and control of the valves are realized, and the device has the advantages of high automation degree, simple structure, convenience in installation and the like.

A vacuum pumping system comprises a vacuum pump, an oil supply line 106 to the vacuum pump, a valve 220 in the oil supply line, and a pressure-controlled valve actuator 109 to actuate the valve, prefe

The mechanism in the invention provides a solution for automated, remote regulating high pressure air in the industrial air tube system. With double layer electromagnetic valves, the mechanism assure the comfortable and safe working platform for humans and equipment. The mechanism comprises: mechanical valve, 20 L pneumatic tank, pressure gauge, sealed metal box, static disc, electromagnetic relay with movable stem, capacitor, low pressure air tube, high pressure air tube, electrical wire, electromagnetic relay.

The invention relates to the technical field of medical instruments, in particular to a plastic pipe inserting device which comprises a connector clamping air cylinder, a plastic pipe clamping air cylinder, a pushing air cylinder, an upper connector clamping block, a lower connector clamping block, an upper plastic pipe clamping block, a lower plastic pipe clamping block, a foot switch, a mechanical valve and a touch block. The connector and the plastic pipe are pre-inserted and placed on the connector lower clamping block, and one end of the plastic pipe is placed on the plastic pipe lower clamping block; when the foot switch is pressed down, the joint clamping air cylinder is controlled to act, the joint upper clamp is driven to approach the joint lower clamping block, the plastic pipe clamping air cylinder is controlled to act, the plastic pipe upper clamping block is driven to approach the plastic pipe lower clamping block, and meanwhile, the touch block is driven to approach the mechanical valve and act on the mechanical valve steering switch. The mechanical valve controls an ejector rod of the pushing air cylinder to stretch out, the plastic pipe lower clamping block is driven to move towards one side of the connector lower clamping block, the plastic pipe and the connector are connected in an inserted mode, and compared with a traditional manual assembling mode, the assembling labor intensity is greatly reduced.

The utility model generally relates to the technical field of bathroom equipment, in particular to a flushing connection structure and a closestool, the flushing connection structure comprises a valve body and a spray head, the valve body is connected with the spray head through a pipeline, the valve body is provided with a valve port, the pipeline is connected between the valve port and the spray head, and the spray head is connected with the valve port. The spray head further comprises a connecting piece used for being connected with the pipeline, and the spray head is detachably connected to the connecting piece and then is communicated with the pipeline. Furthermore, a more stable, rapid and high-compatibility connecting scheme is provided for connecting a reversing valve pipeline to a spray head, and the reversing valve is suitable for various electronic or mechanical valve bodies, good in universality and easy to apply and popularize.

The invention discloses a portable operation tool suitable for quick operation of a mechanical valve, which comprises an auxiliary wheel (1), the center of the auxiliary wheel (1) is rotatably connected with a rotating rod (2), the bottom end of the rotating rod (2) is provided with a plurality of clamping jaws (3) for fixing a valve hand wheel (5), and the bottom end of each clamping jaw (3) is provided with an anti-collision ball body (4). Aiming at a mechanical valve of which the hand wheel rotates for many turns but the resistance moment is very small, the invention has the characteristic of improving the rotation adjustment efficiency of the valve.

The utility model discloses a flow regulating device. The flow regulating device comprises a diaphragm pump, a pulse regulator and a mechanical valve, the liquid outlet end of the diaphragm pump is communicated with a liquid medicine conduit, a mechanical valve for controlling the flow of the liquid medicine conduit is arranged on the liquid medicine conduit, the diaphragm pump is electrically connected with a pulse regulator, and the pulse regulator is used for regulating the rotating speed of the diaphragm pump by regulating the width of a pulse signal so as to control the flow speed of the liquid medicine. When the device is used, the problems that in the prior art, a manual adjusting mode depends on experience and judgment of operators, and the flow of a medicament pipeline can be directly changed by adjusting a knob or a switch on the smoke sprayer, so that the quantity of the discharged medicament is controlled are solved, and an electric pulse adjusting mode is used for adjusting the flow of the medicament pipeline in a low-flow state. And the pulse frequency is often low, so that the medicine discharge amount is not uniform.

The invention belongs to the technical field of robots, and discloses a mechanical valve auxiliary operation robot which comprises a moving platform and a multi-degree-of-freedom mechanical arm. The multi-degree-of-freedom mechanical arm is mounted on the moving platform, and a three-jaw floating electric spindle is mounted at the tail end of the multi-degree- The multi-degree-of-freedom mechanical arm comprises a first overturning frame, a second sliding frame, a rotating frame and a second overturning frame; the three-jaw floating electric main shaft is mounted on the second turnover frame; the first overturning frame is rotationally mounted on the moving platform; the second sliding frame is installed on the first overturning frame in a sliding mode and driven by a second sliding driving device to slide. The rotating frame is rotationally mounted on the second sliding frame; the second overturning frame is rotationally mounted on the rotating frame; the three-jaw floating electric spindle is integrated with a visual monitoring system, and the situation of a working area can be monitored in real time. The device can be automatically navigated and positioned to a designated position, the valve is grabbed and rotated according to the required opening degree according to different flange plate sizes and structures of the valve, and opening or closing of the valve is achieved.

The utility model relates to an overhung strong on-off hollow gas-proof feedback pump and relates to the technical field of oil pumping pumps, comprising upper and lower pump cylinders arranged side by side from top to bottom, the upper and lower pump cylinders being connected through a sand-set gas-proof coupling, the inner diameter of the sand-set gas-proof coupling being greater than the inner diameters of the upper and lower pump cylinders, a flexible plunger assembly being arranged to reciprocate together between the upper and lower pump cylinders, the lower end of the flexible plunger assembly being connected to a forced mechanical valve group, the lower end of the lower pump cylinder being connected to a bottom pump cylinder, and the oil inlet of the forced mechanical valve group being fixedly connected to a plunger tube that is slidingly constrained in the bottom pump cylinder. The utility model solves the problems of the conventional oil pumping pump, i.e., the oil pumping pump is prone to gas locking during the up and down strokes, which results in a small oil output or even no oil output, seriously affecting the normal operation of the oil well, and the problems of the existing rod column, i.e., the friction between the thick oil and the oil pumping rod is large, the oil pumping rod is subjected to a large force, and the risk of the oil pumping rod being broken off is increased.

The utility model discloses a buffer type mechanical valve, which relates to the technical field of mechanical valves, and comprises a valve body, a water inlet pipe arranged at the liquid inlet end of the valve body, a water outlet pipe arranged at the liquid outlet end of the valve body, a lifting groove arranged on the surface of the water inlet pipe, a main sleeve arranged at the top end of the lifting groove, and a main piston disc connected with the inner wall of the main sleeve in a sliding manner, a reset spring is arranged between the main piston disc and the main sleeve, and a main trapezoidal block sliding relative to the lifting groove is arranged on the inner side of the main piston disc. The utility model has the beneficial effects that the impact force of water flow is reduced through the elastic force generated by the deformation of the reset spring, the buffering is realized, the reset spring is isolated from the water flow by the main piston disc, the reset spring is prevented from being stained with scale or rusting, the service life of the reset spring is prolonged, the reset spring is limited by the sliding rod and is prevented from being damaged due to excessive bending, and the service life of the reset spring is prolonged. And the service life of the reset spring is further prolonged.

A plurality of inflatable bags are contained on the periphery of the lower end face of a floating plate, an air storage tank is arranged in the floating plate, a mechanical valve is arranged at an air outlet of the air storage tank, a linkage rod is hinged to the floating plate, a floating block is fixed to the linkage rod, and the floating block drives the linkage rod to rotate along the hinge point of the linkage rod through buoyancy and pushes a valve element of the mechanical valve. And the air storage tank is deflated and inflates all the inflatable bags, and the inflated inflatable bags protrude out of the lower end face of the floating plate and form a second layer of floating body. The buoyancy part is divided into two floating bodies for supporting, the generated needed buoyancy can rise along with the liquid level, the buoyancy is automatically increased, no extra space is found, and the device can be used between adjacent garages; the vehicle weights are different, the required buoyancy is different, however, the height of the ground clearance is fixed, the second-layer floating body is formed through automatic inflation, and therefore the floating body can adapt to more types of vehicles.

The invention discloses a mechatronics faucet control valve which comprises an electromagnetic valve part, an electromagnetic valve part, an electromagnetic valve part and an electromagnetic valve part, the electromagnetic valve part comprises a valve body, a valve seat and a valve head, the valve seat and the valve head are connected with a water inlet pipeline and a water outlet pipeline on the valve body, and a diaphragm assembly for opening and closing the valve seat is arranged in the valve seat; a magnetic guide column for controlling the diaphragm assembly to move is arranged in the valve head; the mechanical valve part comprises a pressing assembly and a fixing seat which are communicated up and down, the fixing seat is arranged at the top of the electromagnetic valve assembly in a sealed mode, a first magnet is arranged at the bottom of the fixing seat, a second magnet is arranged at the bottom of the pressing assembly, and when the pressing assembly is pressed down or lifted up, the first magnet and the second magnet are attracted or separated; and the magnetic guide column moves up and down to open and close the valve seat. The invention further provides a mechanical and electrical integrated control faucet. Electric control and manual control of the faucet can be achieved, and the adverse effect of system outage is avoided on the basis that the waterway structure is not changed.

The self-adaptive double-oil-way parallel shock absorber comprises an oil storage cylinder, a working cylinder arranged in the oil storage cylinder and a piston assembly arranged in the working cylinder in a sliding mode, and a cavity in the working cylinder is divided into a rod cavity and a rodless cavity through the piston assembly; one side outside the oil storage cylinder is connected with a middle cylinder, a first chamber and a second chamber are arranged in the middle cylinder, the first chamber is communicated with the rodless cavity, and the second chamber is communicated with the rod cavity; two one-way mechanical valves are arranged at the middle cylinder; an electromagnetic valve assembly is further arranged at the middle cylinder, and the electromagnetic valve assembly is used for controlling whether the first cavity and the second cavity are communicated or not; when oil flows into the second cavity from the first cavity in a one-way mode or flows into the first cavity from the second cavity in a one-way mode, the action of the electromagnetic valve assembly is superior to that of a one-way mechanical valve at the moment, active and rapid switching between the communication state and the blocking state between the first cavity and the second cavity is achieved, and therefore the purpose of action decoupling of the one-way mechanical valve and the electromagnetic valve assembly is achieved. And the dynamic responsiveness and accuracy of damping regulation and control are improved.

The invention relates to the technical field of powder material packaging, and particularly discloses a pneumatic-based powder packaging system and method. The system comprises a gas screen control module, a separation and purification module and a pressure regulation module. The air screen control module generates and generates an air curtain barrier with adjustable strength through an air screen device, and the controller dynamically adjusts the sealing strength according to an instruction; the separation and purification module realizes powder recovery and gas purification; the pressure adjusting module maintains system pressure balance. The system automatically switches operation modes according to the packaging stage: in the container positioning stage, the air curtain barrier prevents the powder from passing through, and the separation device recovers the powder in the airflow; and in the quantitative filling stage, the system maintains positive pressure, so that the powder smoothly passes through and dust is prevented from escaping. Non-contact type dynamic sealing replaces a mechanical valve, the problems of dust leakage, cross contamination, frequent maintenance and the like are solved, and the non-contact type dynamic sealing powder packaging machine is suitable for powder packaging scenes with high cleanliness requirements such as food, medicine and chemical engineering.

The utility model relates to the technical field of overload protection of mechanical valves of rubber vulcanizing machines, and discloses an overload protection device of a mechanical valve of a rubber vulcanizing machine, which comprises a support, a support plate is fixedly connected in the support, a screw is arranged in the support plate, and an actuator guide sleeve is slidably connected to the outer side of the screw. A nut is installed at the bottom of the actuator guide sleeve, the nut is connected to the outer side of the screw in a threaded mode, an adjustable actuator is installed at the bottom of the nut, the periphery of the screw is sleeved with a spring, the spring is arranged between the supporting plate and the actuator guide sleeve, and an installation hole is formed in the top of the support. According to the utility model, under the mutual cooperation of the spring, the actuator guide sleeve and the adjustable actuator, the functions of clearance compensation and over-position protection for a mechanical structure are realized when the vulcanizing machine is opened and closed, and the internal leakage of a mechanical valve or the damage of the mechanical valve is avoided.

The present invention discloses a pilot-type air-controlled vacuum mechanical valve, comprising a valve body with an inner cavity, a holding cavity being provided at one end of the valve body, and a working interface and a normal-pressure interface being provided at the other end of the valve body; further comprising a lower trigger mechanism and an upper trigger mechanism, the lower trigger mechanism comprising a positive-pressure diaphragm and a lower moving assembly, the upper trigger mechanism comprising a negative-pressure diaphragm and an upper moving assembly; the inner cavity comprising a first normal-pressure cavity, a second normal-pressure cavity, a first negative-pressure cavity, a second negative-pressure cavity, a working cavity and a negative-pressure channel; the lower moving assembly is connected to the positive-pressure diaphragm, and moves up and down under the action of the positive-pressure diaphragm to connect or isolate the first negative-pressure cavity from the negative-pressure channel; the upper moving assembly is connected to the negative-pressure diaphragm, and moves up and down under the action of the negative-pressure diaphragm to selectively connect the working cavity to the second negative-pressure cavity or the normal-pressure interface; the present application realizes the opening and closing of a purely mechanical control vacuum interface valve, which can be used in a vacuum sewage discharge system, which not only reduces the installation cost, but also is very convenient to use and has high reliability.

The invention discloses a handheld multifunctional adjustable suction pen jig which comprises a main body supporting frame. The bracket is fixedly arranged at the top end of the main body support frame; the handheld grip is fixedly arranged on the inner side of the bracket; the vacuum generator is fixedly arranged on one side of the inner cavity of the handheld grip; the mechanical valve is fixedly arranged on the other side of the inner cavity of the handheld grip, and the front side of the mechanical valve extends out of the front side of the handheld grip. According to the handheld multifunctional adjustable suction pen jig, by arranging the adjustable suction fixing assembly, the positions of the multiple suction nozzles can be independently adjusted and fixed so that the jig can be suitable for sucking and fixing materials of different sizes, and the jig is connected with a first air pipe connector, an air distribution pipe connector and a second air pipe connector through air pipes; and the vacuum generator can generate suction force to the suction nozzle under the cooperation of the suction mechanism, so that light and thin materials in various forms can be sucked and moved.

The utility model discloses a two-position three-way mechanical valve which comprises a valve body, a working cavity arranged on the valve body and a valve cover installed on the valve body. The valve cover is connected and communicated with the working cavity through an exhaust port formed in the valve cover; an air inlet and a working port are formed in the valve body; a valve clack assembly is arranged in the working cavity; the valve clack assembly comprises an upper valve plate, a lower valve plate and a valve rod sliding between the upper valve plate and the lower valve plate; one ends of the air inlet and the working port are communicated with the working cavity; through downward movement of the valve rod, the air channel in the valve rod is communicated with the air inlet, so that air flow flows to the working opening after passing through the air channel; the valve rod moves upwards so that the air channel can be separated from the air inlet, the air channel can be promoted to be communicated with the exhaust port while the air flow of the air inlet is cut off from flowing to the working port, and therefore the air flow from the working port can be exhausted. On the basis, the equipment utilizes a pure mechanical structure to complete the conversion of gas paths, and also has the advantages of simple structure and few parts.

The present application relates to a kind of water delivery cleaning techniques, specifically a kind of disc filter according to pressure difference to mechanical control of backwashing, including shell structure, filter core component and mechanical valve control mechanism, the inside hollow of shell structure, the lower portion of shell structure has water supply and drainage pipe group, water supply and drainage pipe group from the lower portion of shell structure into shell structure;Upper and lower parts of shell structure have drainage passage and blowdown passage respectively;Filter core component is set in shell structure, and mechanical valve control mechanism is used to open and close control of drainage passage and blowdown passage.Adopt mechanical valve control mechanism to automatically control the opening and closing of blowdown passage and drainage passage, replace original solenoid valve, on the one hand, in durability aspect can be guaranteed, on the other hand, in precision control aspect is also more accurate;And using mechanical structure control replaces solenoid valve, in manufacturing cost and maintenance cost are superior;Mechanical structure can adapt to complex water environment, and failure rate is lower compared to solenoid valve.

The present invention provides a mechanical valve type negative pressure adsorption wall-climbing robot, comprising a frame base plate and an adsorption movement mechanism, an adsorption steering mechanism, an anti-overturning mechanism, and a vacuum adsorption system arranged on the frame base plate. The adsorption movement mechanism comprises a drive motor, a driving shaft, a driven shaft, and two chain track groups. The two chain track groups are symmetrically mounted on both sides of the driving shaft and the driven shaft through bearing sleeves. Suction cup groups are evenly spaced on the tracks of the chain track groups. The vacuum adsorption system comprises a vacuum pump, two rotary joints, two Y-type three-way joints, and a plurality of T-type three-way joints and a cross four-way joint. The mechanical valve type negative pressure adsorption wall-climbing robot is provided with a rotary joint. When the walking suction cup moves along the direction of the chain track, its air intake pipe is supported by the T-type three-way joint and the cross four-way joint and rotates around the rotary joint, thereby avoiding the problem of pipe entanglement during the advancement of the wall-climbing robot.

The utility model discloses a pneumatic booster oil pump stroke valve, which relates to the technical field of mechanical valves and is used for being matched with a valve core of a mechanical valve, a limiting structure comprises a limiting part, a positioning part and a damping ring, the lower end of the limiting part is integrally connected with the positioning part, and the lower end of the positioning part is integrally connected with the damping ring. The damping rings are arranged in the positioning part and the limiting part, and the diameter of the limiting part is larger than that of the positioning part. According to the mechanical valve, through the arrangement of the limiting structure, the position of the valve element of the mechanical valve can be limited, so that the valve element of the mechanical valve can be kept at a certain position, and the situation that the position of the valve element of the mechanical valve deviates due to misoperation or the inertia effect is avoided.

The application discloses a low-noise pneumatic air gun type biopsy needle convenient for single-hand loading, which comprises an inner needle, an outer needle, a connector, a mechanical valve, a firing mechanism, a loading mechanism, a needle cylinder, a needle cylinder shell, a first piston, a tension spring, a second piston and a compression spring. The inner needle is glued on the outer side of the front end of the needle cylinder, the outer needle is glued on one end of the connector and is sleeved on the outer side of the inner needle, and the other end of the connector is fixed with the elongated part of the second piston. The needle cylinder comprises a needle cylinder part one and a needle cylinder part two, and the needle cylinder and the needle cylinder shell are bonded into an integrated whole after being aligned. The second piston is fixedly connected with the compression spring and is located on the inner side of the front end of the needle cylinder, and the other end of the compression spring is sleeved on the protruding part on the inner side of the front end of the needle cylinder. The first piston is fixedly connected with the tension spring and is located on the inner side of the tail end of the needle cylinder, and the other end of the tension spring is bonded with the tail seat of the needle cylinder. The firing mechanism realizes button control of cutting and sampling of the outer needle. The loading mechanism realizes button control of returning and loading of the outer needle. The application reduces the dependence of surgical operation on the experience of doctors, reduces the noise generated in the surgical process, avoids the body displacement of patients due to the noise, improves the precision of tissue biopsy surgery, can realize single-hand operation and improves the convenience of surgical operation.

The utility model relates to a pneumatic control valve for a booster oil pump. The pneumatic control valve comprises an air valve shell and an air valve core, the air valve element comprises a valve element body and a piston. A valve core cavity and a piston cavity which are communicated with each other are arranged in the air valve shell; the valve core body and the piston are correspondingly arranged in the valve core cavity and the piston cavity; the valve element is characterized in that a rod ventilation groove, a main ventilation groove and a rodless ventilation groove are sequentially formed in the valve element body from front to back; a rod exhaust hole, a main gas transmission hole, a rodless exhaust hole, a rod gas transmission hole, a mechanical valve vent hole and a rodless gas transmission hole are respectively formed in the side wall of the gas valve shell of the valve core cavity; a piston cavity exhaust hole and a piston cavity gas transmission hole are formed in the side wall of the gas valve shell; a piston cavity ventilation channel used for communication is arranged between the rear cavity of the piston cavity and the rodless air conveying hole, and a valve element cavity ventilation channel used for communication is arranged between the front cavity of the valve element cavity and the main air conveying hole. The air valve has the advantages that the air valve element is not prone to being blocked, abrasion between the air valve element and the air valve shell can be reduced, and the service life can be prolonged.

The utility model discloses a novel sealing device for titanium alloy powder oxygen content detection, which comprises a support frame and a vacuum chamber, one side of the bottom of the support frame is provided with a first motor, one side of the first motor is provided with a rotary granulation mechanism, one side of the rotary granulation mechanism is provided with a three-way pipe, one side of the three-way pipe is provided with a titaniferous solution atomizing mechanism, and the other side of the three-way pipe is provided with a second motor. A vacuum chamber is arranged above the titaniferous solution atomizing mechanism, a heating coil is arranged on the lower side of the inner wall of the vacuum chamber, a heat conducting plate is arranged above the heating coil, a stirring mechanism is arranged at the center of the top of the heat conducting plate, a second vacuum pump is arranged on one side of the stirring mechanism, and a feeding pipe is arranged on the other side of the stirring mechanism; a mechanical valve is arranged on one side of the feeding pipe, a large amount of air is prevented from entering the vacuum chamber while a titanium rod is placed in the vacuum chamber through the double-layer sealed feeding port structure, the purity of the titanium rod material inside the vacuum chamber is guaranteed, and the production precision of products is improved.

The utility model discloses an electrolytic cell of built -in mechanical type automatic valve, and the inside of open end plate forms the horizontal passage of horizontal distribution, is provided with to the both ends of horizontal passage through open end plate, and one end of horizontal passage is purging gas import, and the other end of horizontal passage is hydrogen export, and the both sides of open end plate still respectively downwards have opened first longitudinal channel and second longitudinal channel, and open end plate is close to the central position longitudinal distribution and has the pilot pressure channel, and the pilot pressure channel is through open end plate distribution up and down, and the one end of horizontal passage close to purging gas import is equipped with check valve, and the pilot pressure channel is equipped with the on -off valve. Advantageous effects are: realize the hydrogen gas that electrolytic cell works produces from the both ends of electrolytic chamber and flows out simultaneously, realize the purging when electrolytic cell stops, and purging gas flows into from one end of electrolytic chamber, and flows out from the other end, and the switching of two kinds of modes is automatic, and does not depend on electrical control equipment, realizes by mechanical valve, and the reliability is high, and simple to use.