45results about How to "Less prone to failure" patented technology

The utility model discloses a tool bit direction changing mechanism and medical direction changing cutter, the tool bit direction changing mechanism is applied to the medical direction changing cutter, the medical direction changing cutter comprises a tool bit and an inner cutter bar assembly, the inner cutter bar assembly is hinged to the tool bit to transmit torque to the tool bit to drive the tool bit to rotate and can do pitching motion relative to the axis of the medical direction changing cutter, and the inner cutter bar assembly is hinged to the tool bit to drive the tool bit to rotate. The tool bit direction changing mechanism comprises a fixing piece, an inner tool bar assembly and a rotating piece. The fixing piece is arranged outside the inner tool bar assembly in a sleeving mode. The sliding piece is arranged outside the fixed piece in a sliding and sleeving manner and can axially move relative to the fixed piece; the bending supporting sleeve is arranged outside the tool bit in a sleeving mode, the tool bit extends out of one end of the bending supporting sleeve, the other end of the bending supporting sleeve is provided with a first connecting part and a second connecting part, the first connecting part is rotationally connected with the sliding piece, and the second connecting part is rotationally connected with the fixing piece; the bending supporting sleeve and the tool bit are driven to do pitching motion relative to the inner tool bar assembly through axial movement of the sliding piece. According to the technical scheme, the manufacturing difficulty of the tool bit turning mechanism is reduced.

The utility model relates to the technical field of mesh belt furnace, concretely to a conveying device suitable for mesh belt furnace extension, mistake-proof material mixing, including machine body frame, the utility model discloses the transmission reduction motor speed is changed through the adjustment motor speeder, and the transmission chain and the gear drive the conveyer belt transmission shaft rotation, make the conveyer belt speed close mesh belt speed of former station, and the workpiece is driven to the conveyer belt on the conveyer belt through the unpowered roller, when the workpiece is completely conveyed to the material receiving inductor position, the material receiving alarm will occur sound and light alarm prompt, and the operator comes over to receive the material, and the conveyer belt uses a period of time, can pass through the adjustment conveyer belt tensioning shaft adjustment conveyer belt tension, guarantee no skidding phenomenon, and the mesh belt furnace inlet end, when the first workpiece or material of batch enters the furnace, put a workpiece containing the isolation mark, press the batch into the furnace button, when the workpiece or material of batch is discharged, the last batch has all been discharged, and the material receiving alarm will always alarm prompt at this time.

The utility model relates to the field of vehicle door handles, and particularly discloses a hidden vehicle door handle structure which comprises a base and a handle, the base is embedded in a vehicle door and close to the outer side of the vehicle door, an opening communicated with an internal mounting space is formed in the outer side face of the vehicle door, the handle is embedded in the opening, and a swing assembly, a driving assembly and an unlocking assembly are arranged in the base. The handle is in linkage with the swing assembly and has a hidden position, a working position and a triggering position, the driving assembly is used for driving the swing assembly to move so as to drive the handle to move, and the unlocking assembly is used for cooperating with the handle to unlock the automobile door. The device has the advantages of being simple in structure, convenient to implement and low in cost.

This utility model relates to the field of lock technology and discloses a lock comprising: a housing with a third keyhole on its side wall; a top and bottom rod assembly, including a top rod and a bottom rod slidably disposed in the housing and a first gear rotatably disposed in the housing, the first gear being located between the top and bottom rods and engaging with them for transmission; and a first lever rotatably disposed in the housing, on which a first lever arm is formed for linkage with the top or bottom rod. When the first lever rotates, the first lever arm drives the top and bottom rods to slide in the third keyhole respectively. This lock can drive the top and bottom rod assembly to slide with a relatively simple structure, reducing the probability of failure.

The utility model discloses a fan variable winding insulation structure. The utility model discloses a shell is fixedly connected with stator in the shell inside, is established winding slot in the stator inner wall, and winding slot sets up multiple groups, and winding slot inside is connected with variable winding body, the fastener is provided with two groups in winding slot inside is provided with single group insulation mechanism, the fastener includes fixed block, the recess, the connecting plate, the restraint band, the clamping block, the fixed block fixedly connected in winding slot inside, the recess is established on fixed block upper end, the connecting plate is fixedly connected with fixed block, the restraint band is fixedly connected with connecting plate, the clamping block is fixedly connected with restraint band, and through single group insulation mechanism can play insulation protection effect to variable winding body, and through fastener can prevent single group insulation mechanism and move and fall off simultaneously, thereby can make fan not easy to appear the trouble.

This utility model discloses a thyristor forming and unloading structure, including: a feeding plate; and an unloading assembly, which includes a connecting plate, a rotating hole, a rotating disk, and a first connecting post. The connecting plate is fixed to one side of the upper end of the feeding plate, the rotating hole is opened in the center of the connecting plate, the rotating disk is rotatably installed inside the rotating hole, the first connecting post is fixed to one side of the upper surface of the rotating disk, a movable rod is sleeved on the outer surface of the first connecting post, a second connecting post is fixed to the upper surface of the other end of the movable rod, a connecting ring is sleeved on the outer surface of the second connecting post, and a connecting rod is fixed to one side of the connecting ring. This utility model's pushing mechanism utilizes the rotation of the rotating disk to drive a series of linkage mechanisms. The structure is relatively compact, occupies little space, and is suitable for installation on various thyristor production lines. Furthermore, the connection and transmission methods between the components are relatively simple and reliable, and it is not prone to failure during long-term operation, ensuring continuous production.

The invention belongs to the technical field of cutting beds, and particularly relates to a hollow motor direct drive type ejector pin punching drill structure which comprises a rack, an assembling plate is arranged on the side edge of the rack, an air cylinder and first guide sleeves are arranged above the assembling plate, the number of the first guide sleeves is two, first guide rods are arranged in the first guide sleeves in a sliding mode, and a piston rod of the air cylinder and the lower ends of the first guide rods are connected with a mounting plate. A hollow motor is arranged on the mounting plate, the lower end of the hollow rotating shaft is connected with a chuck assembly, a guide sleeve fixing seat is connected between the two first guide sleeves, an ejector rod is arranged on the guide sleeve fixing seat, and the ejector rod penetrates through the hollow rotating shaft and extends into the hollow drill. The device is good in structural stability, high in machining precision, long in service life, simple in structure, stable in transmission and not prone to faults; the price is low, and the cost is effectively saved; the hollow drill is convenient, fast, time-saving and labor-saving to disassemble Meanwhile, the structure is compact, interference with the cutter head is avoided, the space between the hollow drill and the movable disc is large, the cutter and the hollow drill in the cutter head can be replaced conveniently, and the device is suitable for the automatic cutting bed.

The utility model discloses an intelligent circuit breaker structure, which sequentially comprises an upper cover, a middle cover and a bottom cover from top to bottom, wherein an N-pole bus cavity for installing an N-pole bus and a transmission cavity for installing a gear transmission mechanism are formed between the upper cover and the middle cover; a contact cavity for mounting an N-pole contact mechanism is formed between the upper cover and the bottom cover; an L-pole bus is mounted between the bottom cover and the middle cover, and an insulating plate for separating the L-pole bus from the N-pole bus is formed on the middle cover; and the L-pole bus is positioned between the middle cover and the bottom cover. The transmission structure is a duplex-mode gear set, the structure is compact, the shell is of a 2p structure, and the N-pole contact mechanism does not need a connecting rod, so that the whole structure is simpler and more compact, the size is the same as that of an existing traditional single-phase circuit breaker, the size of a distribution box does not need to be increased when the existing traditional single-phase circuit breaker is replaced, and connecting rod transmission is not needed during unhooking; the device is more reliable and is not easy to break down.

The present invention provides a stacked satellite rocket clamping and releasing mechanism, including: a clamping mechanism, a base, a transfer mechanism, a thrust mechanism and an unlocking mechanism. The unlocking mechanism includes: a plurality of flexible strips and an unlocker. The installation body of the release device is the base, and a plurality of stacked satellites are neatly stacked and placed on the base. At least two sets of the release devices provided by the present invention are symmetrically arranged around the stacked satellite. The larger clamping force required by the clamping mechanism is provided by the smaller pulling force of the flexible strips of the transfer mechanism through the force amplification of the transfer mechanism. The impact between the impact power source and the clamped target is buffered by multiple places such as the flexible strips, the transfer mechanism, and the clamping mechanism. One unlocker can be used to unlock multiple clamping mechanisms, and there is no need to set an unlocker at each clamping mechanism. The release device provided by the present invention has a small spatial envelope, low load-bearing requirements for the unlocker, small unlocking impact, and a small number of unlockers required, and can achieve the clamping and release of multiple targets stacked vertically.

The invention relates to the technical field of thermocouples, in particular to a multifunctional thermocouple wire temperature measuring device which comprises thermocouple wires arranged in a vacuum tube and a receiving end connected with the vacuum tube, a frosted glass rod is connected between the thermocouple wires through a thermocouple fixing block, and a demagnetization box is arranged on the frosted glass rod. An iron core, a wire coil and a heating rod are arranged in the degaussing box, the wire coil is wound on the iron core, a heat insulation plate is arranged between the wire coil and the heating rod, and a magnet electric connector is fixedly arranged on the bottom side face of the lower connecting end. The thermocouple wire can stably run in the vacuum tube for a long time, the reliability is high, the maintenance cost is reduced, the use efficiency of equipment is improved, the multiple demagnetization boxes are distributed on the thermocouple wire, a high-temperature and high-magnetism environment is formed in the vacuum tube, the purpose of eliminating internal magnetization is achieved, the detection accuracy is improved, whether magnetism exists or not is controlled at any time, and the service life of the equipment is prolonged. The normal use of the thermocouple wire is not affected, and the use flexibility is improved.

This application relates to a self-drainage structure for a rotor installation pit. This application is applicable to the field of hydropower construction technology. The technical problem to be solved by this application is: to provide a self-drainage structure for a rotor installation pit. The technical solution adopted in this application is: a self-drainage structure for a rotor installation pit, comprising: an upper drainage hole formed between the installation pit and a construction support tunnel below the installation pit, the upper end of the upper drainage hole connecting to the bottom of the installation pit, and the lower end of the upper drainage hole connecting to the construction support tunnel; a middle drainage pipe disposed within the construction support tunnel, the upper end of the middle drainage pipe connecting to the lower end of the upper drainage hole, and the lower end of the middle drainage pipe extending to a drainage ditch at the bottom of the construction support tunnel; and a lower drainage hole formed between the construction support tunnel and a self-drainage tunnel below the construction support tunnel, the lower drainage hole connecting to a drainage ditch at the bottom of the construction support tunnel, and the lower end of the lower drainage hole connecting to the self-drainage tunnel.

This invention discloses an online rapid detection device for cable conductor resistance, comprising a fixed-position detection system and a moving-position detection system. The fixed-position detection system includes a main body and a control mechanism. The control mechanism includes a control box, a rotating hinge fixedly mounted on the top of the control box, a box cover rotatably connected to the control box via the rotating hinge, a sealing plate fixedly connected to the front of the box cover, a signal control board embedded in the front of the box cover, a display screen embedded in the top of the control box, control keys fixedly mounted on the top of the control box, a base fixedly connected to the bottom of the control box, and an alarm mechanism provided at the bottom of the main body. The invention features a lower clamp fixedly connected to the top of the main body, and upper and lower clamps that can be fixed to the outside of the cable, allowing the resistance detection board to fit snugly against the cable. This facilitates real-time monitoring of the cable resistance, simplifies installation, improves installation efficiency, and enhances monitoring convenience.

The utility model relates to the field of multi-stage powder screening machines, in particular to a multi-stage powder screening machine which is characterized in that a feeding mechanism is arranged on one side of the top of a multi-stage powder screening machine body, an upper pulling plate and a lower pulling plate are movably arranged in the feeding mechanism, and one end of the upper pulling plate and one end of the lower pulling plate extend out of the feeding mechanism; a bearing seat is arranged outside the feeding mechanism and located between the upper pulling plate and the lower pulling plate, a rotating shaft is rotationally arranged on the bearing seat, the rotating shaft is fixedly sleeved with a limiting piece, and limiting cavities are formed in the positions, corresponding to the limiting piece, of the upper pulling plate and the lower pulling plate in a matched mode. According to the multi-stage powder screening machine, screening of powder can be achieved through the multi-stage powder screening machine body, quantitative feeding of the powder can be achieved through matched arrangement of the upper pulling plate and the lower pulling plate in the feeding mechanism, and the quantitative feeding structure is simple, convenient to operate, not prone to faults and convenient for a user to use.

The utility model discloses a kind of two-way synchronous locking mechanism, including driving motor, speed reducer, gear assembly, first mounting seat, second mounting seat, transmission long shaft, left side lock head, right side lock head, two guide sleeves, two guide pins.The utility model connects left side lock head and right side lock head together by transmission long shaft, under the driving of driving motor or hand wheel, the synchronous extension or retraction of left side lock head and right side lock head is realized, the precision locking and unlocking for load are realized;And the two-way synchronous locking mechanism, carrying capacity is larger, locking precision is high, adjustment is convenient, structure is compact, safe and reliable, it is convenient to maintain, it is smooth to run without jam, can be used for the precision locking and position keeping of multiple loads.In addition, the transmission of left side lock head and right side lock head is mainly threaded cooperation output, tight cooperation, error deviation or fault is not prone to under high-frequency vibration or complex working condition.

The utility model discloses a kind of limit structure of vegetable cutter knife cylinder, be arranged between the material main casing and vegetable cutter knife cylinder of salad machine, the vegetable cutter knife cylinder is coaxially arranged in the horizontal discharge cylinder cavity of axis line, including stopper and limit ring, the limit ring is coaxially arranged on the rear end outer wall of the vegetable cutter knife cylinder, the stopper is arranged on the material main casing outer wall and located the discharge cylinder cavity directly above;The telescopic working end of the stopper downwardly protruding can abut against and block the rear side shoulder of the limit ring.The limit structure of vegetable cutter knife cylinder of the utility model, vegetable cutter knife cylinder is axially limited by stopper, ensure that cutting process is smooth, vegetable cutter knife cylinder is not easy to fall off.

The invention discloses an inertial release device and method for a space station accompanying micro-nano satellite based on a mother-and-child type satellite, comprising: a mother satellite is provided with a release device; a sub-satellite is arranged in the release device; a main board is arranged on a base, a docking mechanism is arranged on one side of the mother satellite, and the main board is connected with a bent plate through a rotating shaft; an electromagnet is arranged on the main board, and the electromagnet controls the switch of the bent plate and the docking mechanism, thereby controlling the mother satellite on a spring tray; a first steering gear is arranged on a groove of the mother satellite and connected with a baffle; the baffle is arranged on the edges around the mother satellite, and is used to prevent the sub-satellite from detaching from the release mechanism; the spring tray is used to hold the mother satellite, and a second steering gear is connected to a bobbin to control the rotation of the bobbin; one end of a rope system is fixed on the mother satellite, and the other end is fixed on the bobbin; a power supply supplies power to the second steering gear; the invention can form an accompanying relationship between the sub-satellite and the mother satellite, and complete data interaction between the sub-satellite and the mother satellite.

The utility model relates to the technical field of packaging equipment, in particular to a belt supporting mechanism for a packaging machine, which comprises two groups of belt supporting rods which are oppositely arranged, rotationally connected with a rack and arranged on two sides of a belt track; and the positioning mechanism is connected with the belt supporting rod and is used for positioning the rotation angle of the belt supporting rod. According to the strapping tape supporting mechanism, the rotating angle of the strapping tape supporting rod is positioned through the positioning mechanism, the opening angle of the strapping tape supporting rod can be adjusted according to the size of a strapping article, falling of the strapping tape is limited, and the strapping position is prevented from becoming poor when the strapping tape straps the article.

The utility model discloses a coal bunker dredging electric control device, which relates to the technical field of coal bunker dredging, and comprises an air inlet ball valve, an air inlet connecting piece, an air storage tank, a base and a motor, the air storage tank and the motor are respectively and fixedly arranged on the base, a sounder is communicated between the motor and the air storage tank, the sounder is communicated with a taper pipe, and the taper pipe is communicated with the air inlet ball valve. A Helmholtz resonant cavity is formed in the end, away from the sounder, of the taper pipe and communicates with the coal bunker. The sound generator is driven by the motor to generate sound waves with specific frequency, the sound waves act on blockages in the coal bunker through the taper pipe and the Helmholtz resonant cavity, the blockages are loosened and fall off by utilizing the vibration energy of the sound waves, and compared with a mechanical dredging means, the large-area arching problem can be solved, and the dredging effect is more remarkable.

The application relates to a power component taking-out and discharging mechanism, which comprises a rack, a conveying mechanism, a pin leg bending mechanism and a taking-out mechanism arranged on the rack. The conveying mechanism comprises at least two groups of conveying components capable of reversing the power components. The pin leg bending mechanism can complete pin leg bending in at least one conveying area. The taking-out mechanism can take out the power components on a carrier and then transfer the power components to the next work station. The conveying mechanism with different transfer surfaces in the same specified area can realize the conversion of the transfer direction of the power components in a relatively limited space, so that the equipment has good space utilization, and the whole equipment has higher production efficiency and better stability compared with the traditional power component production equipment.

This utility model provides a manual inflation fixture, belonging to the field of twin-tube shock absorber equipment. The fixture includes a sleeve, which is open at one end. During use, the sleeve end face and the cylinder end face (e.g., the cylinder body end face) are on the same horizontal plane, and the piston rod inside the cylinder (e.g., the shock absorber) is inserted into the sleeve through the sleeve opening. A sealing cavity is formed between the two end faces of the sleeve to prevent gas leakage. An air inlet is provided through the sleeve side wall, with one end connected to the sealing cavity and the other end connected to an external air source. This utility model is suitable for using a simple structure to inject nitrogen into a twin-tube shock absorber to compensate for its performance. At the intersection of the piston rod and cylinder, a component is used to pry open a gap in the oil seal. The sleeve is then fitted onto the intersection of the piston rod and cylinder, forming a sealing cavity between the two end faces. Gas is injected into the sealing cavity, and the gas enters the cylinder (e.g., the shock absorber) through the gap between the oil seals.

The invention provides a movable box girder spraying maintenance device. The movable box girder spraying maintenance device comprises a movable supporting mechanism, a mounting pipe rotationally arranged on the movable supporting mechanism and a spraying head connected to the mounting pipe. A swing driving mechanism is matched with the mounting pipe and used for driving the mounting pipe to rotate so as to drive the spray head to swing and spray; the water tank is used for supplying water to the spray head, and a filter tank is arranged in the water tank and used for filtering water. The spray head is fixed to the supporting pipe, the supporting pipe is driven to rotate in an electric driving mode so as to drive the spray head to swing and spray within a certain range, and the leakage spraying area caused by non-rotation of water driving is reduced; the waste automatic swing water sprinkler or the spray head on the automatic swing water sprinkler is fixed to the mounting pipe for waste utilization, the cost for replacing the automatic swing water sprinkler is reduced, and the device is not prone to faults, durable and low in cost; the filter tank is adopted in the water tank for source filtration, and the problem of nozzle blockage is solved from the source, so that the spraying leakage area is reduced, and the spraying maintenance effect is improved.

The invention relates to the technical field of refractometers, and discloses a calibration device for a refractometer, comprising a base, a supporting cross plate being arranged above the base, a driving mechanism for driving the supporting cross plate to rise and fall being arranged on the base, a mounting cover being arranged below the supporting cross plate, the mounting cover being elastically connected to the supporting cross plate through an elastic connecting component, a mounting shaft being rotatably mounted inside the mounting cover, a first motor being fixedly mounted on one side of the mounting cover, and an output end of the first motor being fixedly connected to one end of the mounting shaft; the invention provides a plurality of drip nozzles, so that the device can drip standard liquids of different concentrations, and by dripping the standard liquid with the drip nozzle, the standard liquid can be accurately dripped onto a detection prism of a refractometer body, and when the dripped standard liquid needs to be switched, the mounting shaft is driven to rotate by the first motor to replace the drip nozzle that drips toward the refractometer body, thereby dripping different standard liquids to improve the calibration accuracy.

The utility model provides a warning board support for water conservancy project construction, relates to the technical field of warning board supports for water conservancy projects, and aims to solve the problems that warning words are written on a fixed structure of an existing warning board, the warning function of the warning board is good under the condition that the sight is good in the daytime, and the warning board cannot be used for warning once the sight is poor or in a dark environment. The warning board comprises a base, universal wheels are symmetrically arranged at the bottom of the base, a frame is fixedly connected to the base, the frame is of a side opening structure, a sealing plate is hinged to the right end of the frame, and the bottom of the sealing plate is hinged to the bottom of the base. Sliding rails are symmetrically distributed on the inner wall of the frame, word plates are connected into the sliding rails in a sliding mode, a lampshade is fixedly connected to the frame through a support, and a spotlight is installed in the lampshade.

The application relates to the technical field of air conditioners, in particular to a heat dissipation structure, an electric control box and a heating and ventilation device. The heat dissipation structure comprises a heat dissipation plate and a heat dissipation flow channel. At least part of the heat dissipation flow channel is formed in the heat dissipation plate, or the heat dissipation flow channel is formed by a cooling pipe penetrating through the heat dissipation plate. Compared with the heat dissipation mode of using a fan in the related art, the heat dissipation structure does not need a driving structure, can save space and improve the structural compactness in the electric control box.

The utility model relates to the technical field of steel grabber, in particular to a rotary electric steel grabber, which comprises a base, a platform seat, a hydraulic control arm and a hydraulic driving unit, the end part of the hydraulic control arm is connected with a steel grabber, the steel grabber comprises a disc body and a connecting frame, the excircle surface of the disc body is rotatably provided with a rotating frame extending downwards, and the rotating frame is connected with the hydraulic driving unit. The lower end of the rotating frame is evenly and rotationally connected with at least two grabbing claws, the upper end of each grabbing claw is provided with a pressing arm, the end of each pressing arm is connected with an end block, the side face of each end block is provided with a pressing opening, the upper surface of the disc body is provided with a hydraulic cylinder, and the lower end of the hydraulic cylinder is connected with a pressing block. Through the improved design of the steel grabber, the problem that a hydraulic pipeline is easily wound and disordered in the process that the hydraulic cylinder rotates along with the rotating frame to be adjusted can be solved, the whole steel grabber structure can be simpler, faults are not prone to occurring, and the operation stability of the whole steel grabber is effectively guaranteed.

The utility model relates to the technical field of water treatment, in particular to a scraper lifting mechanism of scale and bacteria cleaning equipment, which comprises two horizontal cross beams mounted on a machine body, the two horizontal cross beams are both connected with a scraper, and a power component is further mounted on the machine body. The end faces, close to each other, of the two horizontal cross beams are jointly and fixedly connected with two reinforcing rods, and limiting assemblies are installed on the reinforcing rods. The device has the effects that the reinforcing rods are blocked, and then the probability that the lower ends of the scrapers enter the conical slag discharging hopper and are clamped is reduced.

The utility model provides a sealing track clamp of a gold-copper alloy wire welding machine, relates to the technical field of semiconductor processing auxiliary devices, and aims to solve the problems that a frame required by a copper alloy wire welding machine is easy to react with air along with the improvement of production requirements, the existing gold-copper alloy wire welding machine is not provided with an anti-oxidation device, and the production cost is low. The device comprises a heating block and a pressing plate, an air inlet hole is formed in the pressing plate, the air inlet hole is connected with an external nitrogen and hydrogen mixed gas pipe, multiple sets of bowl-shaped gas storage grooves are evenly distributed in the heating block, and multiple sets of heating block gas path holes are evenly distributed in the heating block.

The utility model relates to the field of methanol gasification, in particular to an automatic feeding device for methanol gasification, which comprises a base, a motor is fixedly connected to the upper surface of the base, a transmission component is fixedly connected to an output shaft of the motor, and a shaftless auger is fixedly mounted on the transmission component. The transmission assembly is rotationally connected with a conveying pipe matched with the shaftless auger, the conveying pipe is fixedly connected with a supporting frame, the supporting frame is fixedly connected with the base, a crushing wheel set is fixedly installed on the transmission assembly, and the upper surface of the conveying pipe is fixedly connected with a shell base. A shell is fixedly connected to the upper surface of the shell base, and a reaction device is fixedly mounted at the bottom of the transmission pipe; compared with a traditional feeding device, the shaftless auger and the crushing wheel set work cooperatively in a mechanical transmission mode, the matching degree of the shaftless auger and the crushing wheel set is high, mechanical transmission matching is adopted, and compared with a common electronic control system, the shaftless auger and the crushing wheel set are more stable, production efficiency is improved, and the reliability degree is high.

The present application relates to a kind of anti-radiation dipole magnets for particle accelerator, comprising: iron core, using H-shaped structure;Coil, set in the iron core, and coil is raised at the both ends of iron core and forms saddle-shaped structure;Anti-radiation water pipe assembly is set in the outside of one end of iron core, and the outlet end of anti-radiation water pipe assembly is connected with the outgoing head of coil, to provide cooling water in coil, the inlet end of anti-radiation water pipe assembly is connected with external cooling device.The magnet of the present application makes up for the shortcomings of prior art, improves the operating stability of magnet in strong radiation environment and its service life, and simple structure, compact.