54results about How to "Promise not to leave" patented technology

An automatic submerged arc welding machine for the inner circular seam of a boiler, including a welding trolley, a welding power source, an electric control box, a welding wire reel, a flux tray, a welding cable and a control cable, the welding trolley is put into the boiler cylinder, and the welding trolley includes a welding torch, a wire feeding machine, flux hopper, horizontal adjustment slider, longitudinal adjustment slider, welding seam tracking device and walking trolley; the welding wire reel, welding power supply and electric control box are placed on the ground outside the boiler shell, and the welding wire in the welding wire reel passes through the boiler drum The small hole on the head is guided into the wire straightening mechanism on the wire feeder; the welding power supply passes the welding wire through the small hole on the drum head to connect with the welding wire terminal board on the welding torch, and the electric control box passes the control wire Pass through the small hole on the head of the drum and connect with the welding trolley. The invention can solve the problem that the last inner circular seam of the boiler shell assembly cannot be automatically welded.

The invention discloses an independent suspension of a rail vehicle wheel and relates to a mechanical device used in the field of rail transportation. The independent suspension of the rail vehicle wheel comprises a frame, wherein the frame comprises a left-side frame and a right-side frame, the left-side frame and the right-side frame are provided with connecting portions, each connecting portion is divided into a first connecting portion and a second connecting portion, a frame rotating seat is arranged on a vehicle body, a frame rotating shaft is arranged on the frame rotating seat and is hinged to the first connecting portions and the second connecting portions respectively, an elastic part is connected to the frame, and the other end of the elastic part is connected to the frame rotating seat. The independent suspension of the rail vehicle wheel absorbs and weakens shaking and jolting caused by an uneven track during locomotive operation to the most degree and improves the stability and comfort during locomotive operation.

A robot arm joint quick-change interface system allowing on-rail replacement relates to a robot arm joint quick-change interface system. The robot arm joint quick-change interface system solves the problem that an electric connector of a conventional robot arm joint quick-change interface system is damaged due to overload, since the electric connector has no over travel buffering function. A tolerance guiding abutting apparatus comprises a recessed body and a protruding body matching with the recessed body structure, wherein the recessed body and the protruding body are detachably connected through a plurality sets of locking positioners and a plurality sets of mechanical connection and quick-detach apparatuses, the plurality sets of locking positioners are uniformly arranged between the recessed body and the protruding body, and the plurality sets of mechanical connection and quick-detach apparatuses are uniformly arranged between the recessed body and the protruding body. An electrical connecting device is arranged in a cavity formed by the recessed body and the protruding body. The robot arm joint quick-change interface system is used for spatial on-rail maintenance.

The invention discloses a honeysuckle seed pretreatment device, which comprises a housing, a slider is slidably connected to the housing, closed material barrels are fixed on the slider, a piston press head is arranged over the material barrels, the piston press head is connected to a driving mechanism, feed barrels are arranged over the material barrels, squeezing air bags are arranged in the feed barrels, an air pump is fixed on the housng, the air pump communicates with a main, the air pump communicates with each squeezing air bag via the main, an intermittent mechanism is arranged on the main, a branch pipeline communicates between the air pump and the intermittent mechanism, the branch pipeline is provided with a delay limit mechanism, and a first spring is connected between the slider and the housing. Compared with the prior art, through the arrangement of the squeezing air bags, the material barrels, the piston press head, the intermittent mechanism and the delay limit mechanism, during seeding, the solution not only can increase the water absorption efficiency of seeds and the germination rate, but also can protect seed embryos, ensuring that the seeds can successfully germinate.

The invention discloses an electric bicycle umbrella comprising a supporting rod and a foldable umbrella, wherein the supporting rod comprises a horizontal section and a vertical section which are connected in a circular arc mode; the lower end of the vertical section is fixed on the steel tube handle of the electric bicycle, the umbrella rod of the foldable umbrella is fixed on the end of the horizontal section of the supporting rod, and an included angle of the horizontal section and the vertical section of the supporting rod is 75-85 degrees; the horizontal section is parallel to the line of two rearview mirrors on the upper part of an instrument panel; the lower end of the vertical section is an arc-shaped tile of which one side is provided with an arc-shaped piece matched with the arc-shaped tile; and an included angle between the central line of a cylinder combined by the arc-shaped tile and the arc-shaped piece and the horizontal section of the supporting rod is 20-30 degrees. The invention has the advantages of simple structure and high strength, is convenient in installation, is safe to use, is firm and durable and is convenient to carry and store; all parts and the dip angle of the umbrella rod can be regulated; an umbrella bead and an umbrella cover are tightly sewn, and the umbrella bead has small possibility of scraping people; the umbrella cover is freely folded and unfolded, a lengthening skeleton is raised to prevent a person sitting on the back seat from knocking the head; and the umbrella bead does not separate from the cover skeleton.

The invention relates to the field of high-voltage grounding, and discloses an anti-unhooking high-voltage grounding wire device which comprises an insulating rod, a conductor end wire clamp, an anti-unhooking assembly and a grounding end wire clamp. The conductor end wire clamp is arranged at the top of the insulating rod and is a U-shaped wire clamp with a lateral opening, the conductor end wireclamp drives the conductor end wire clamp to clamp a cable by manually rotating the insulating rod, and the anti-unhooking assembly is arranged at the opening of the conductor end wire clamp and enables the cable to enter from the upper half portion of the opening of the conductor end wire clamp and disengage from the lower half portion of the opening. And the grounding end wire clamp is connected with the conductor end wire clamp through a copper wire. According to the anti-unhooking high-voltage grounding wire device, the anti-unhooking assembly is arranged, so that the cable enters from the upper half portion of the opening of the conductor end wire clamp and falls off from the lower half portion, the clamped cable is located at the upper half portion of the conductor end wire clamp and cannot fall off, the cable can be effectively prevented from being separated from the conductor end, and the grounding efficiency is improved; and grounding safety is ensured.

The invention relates to an automatic submerged arc welding machine, which comprises a welding tracker (3), a welding wire (21) and a gun head (22), wherein an automatic submerged arc welding machine (2) is fixedly arranged on a tracker moving part (32), a boiler body (1) is arranged on a boiler body rotating tooling (5), a connecting part of a U-shaped seal head (13) of the boiler body (1) and a pipe plate (11) is a welding bead (14) to be welded, the welding tracker (3) extends and retracts in the axial direction of the deformed pipe plate (11), and in addition, the submerged arc welding machine (2) also does corresponding extension and retraction movement so that a welding gun always walks along with the welding bead (14). The automatic submerged arc welding machine has the advantages that because the submerged arc welding machine moves along with the tracker moving part through the pushing force of a pressure spring, in addition, a tracking bearing of the tracker does extension and retraction movement close to the pipe plate, the welding gun is enabled to realize the welding without leaving the welding bead, and the welding quality and the welding efficiency are ensured.

The invention relates to the field of petroleum and natural gas exploration and provides a drilling method and system. The drilling method comprises the steps that based on the analysis of the lithologic characters and the electric characteristics of a reservoir of a target stratum, forewarning control points are arranged in the track of a drill bit aiming at the reservoir; on the basis of seismicinterpretation data and a geological model, structure interpretation comparison is conducted on the target stratum, and the structure form and the excellent shale distribution characteristics are analyzed so as to determine the vertical depth and coordinates of an A target point; the position of the drill bit in the vertical direction is judged through while-drilling natural gamma measurement andspecial logging real-time data, the stratum dip angle is calculated, and the strike of a stratum near the drill bit is predicted; according to the stratum dip angle, the drill bit is controlled to land at the A target point; according to the actual landing mode of the drill bit at the A target point, the track control scheme of the drill bit at the time of entering the horizontal section is selected; and through the while-drilling natural gamma measurement and logging real-time data and according to the gamma values of the forewarning control points, the track of the drill bit on the horizontal section is controlled.

The invention discloses an automatic welding walk car of an inner ring welding line, and relates to a welding device. The welding walk car comprises four walk wheels, a motor, a pressing plate, a worm rod shaft, brackets, worm wheels, a walk car frame, wheel shafts and a pair of bevel gears, wherein the worm rod shaft is mounted at the bottom of the frame of the walk car, and is connected with the motor through the bevel gears; the motor is fixed at the bottom of the walk car through the pressing plate; the brackets are mounted at the two ends of the worm rod shaft; the worm wheels are mounted on the brackets; the wheel shafts are mounted on the worm wheels; and the walk wheels are mounted at the two ends of the wheel shafts. The boiler inner ring welding walk car always walks in a direction parallel to the welding line by keeping from the welding line with equal distance, so that a welding gun always dose not leave from the welding line; and after a boiler cylinder rotates by a lap, the starting point and the ending point of the welding line are overlapped, so that the problem of incapability of automatic welding of a last inner ring line of a boiler cylinder combination can be solved.

The invention relates to a welding machine, in particular to an automatic welding machine for a boiler inner circular seam submerged arc. The automatic welding machine is composed of a welding trolley, a welding power source, an electric control cabinet, a wire reel, a flux tray, a welding cable and a control cable. A plurality of supporting rotating tires are arranged on the ground, and a boiler cylinder is placed on the supporting rotating tires. A circular welding seam is formed by the boiler cylinder and a boiler end socket. A small hole is formed in the boiler end socket and sleeved with an insulating sleeve. The welding trolley is placed in the boiler cylinder, and a welding seam tracker is arranged on one side of the walking trolley. A longitudinal adjusting sliding block is arranged on the walking trolley, and a transverse adjusting sliding block is arranged on the longitudinal adjusting sliding block. The transverse adjusting sliding block is provided with a wire feeder and a flux hopper. The flux hopper is provided with a remote control box. It is guaranteed that a weld gun does not leave the welding seam all the time, in the welding process, the welding trolley is located at the bottommost point of the boiler cylinder for welding all the time, and molten iron leakage due to weld penetration of the welding seam is prevented.

The invention discloses a fully-automatic assembly system which comprises a middle frame lifting table. The middle frame lifting table comprises a bottom plate A, a bottom plate B, a guide rod A, a driving part A, a transition plate, side plates, a guide rod B, a middle frame placing plate and a driving part B, one end of the guide rod A is fixedly connected with the bottom plate A, the other endof the guide rod A is fixedly connected with the bottom plate B, the driving part A is fixed onto the bottom plate A and connected with the transition plate in a driving manner, two opposite sides ofthe transition plate are fixedly connected with the side plates, the driving part B is connected with the middle frame placing plate in a driving manner and drives the middle frame placing plate to rise, so that a carrying manipulator grabs a middle frame, the driving part A drives the side plates to rise when the middle frame is taken out by the carrying manipulator, so that the side plates serveas fences, and a tray of the middle frame cannot be separated from a lifting table of a rail when being discharged.

The invention discloses a roller bearing vibration measuring device. The roller bearing vibration measuring device comprises a mandrel for mounting a measured bearing, a sensor and a radial loading mechanism, wherein the sensor is positioned above the mandrel; a measuring head of the sensor is in contact with the outer surface of the top of the measured bearing on the mandrel to form a contact C;the radial loading mechanism comprises a first radial loading assembly and a second radial loading assembly which are arranged below the mandrel respectively. The roller bearing vibration measuring device is reasonable in structure; the load used during measurement is the same as that borne by the bearing during actual use, so that a measurement error is reduced, and that vibration and noises of the bearing can meet the using requirements of a customer in the mounting and using processes is guaranteed.

The invention provides a disinfecting and cleaning apparatus special for needles, root canal files and gutta-percha points, which comprises an upper pressure cover, fasteners, hinges and a disinfecting and cleaning rack. One side of the upper pressure cover is movably connected to the connection side of the disinfecting and cleaning rack through the hinges; the other side of the upper pressure cover is connected to the opening-closing side of the disinfecting and cleaning rack through the fasteners; the top of the disinfecting and cleaning rack is provided with a root canal file holding portion, a needle holding portion, a gutta-percha point disinfecting portion and a counting portion; the needle holding portion, the gutta-percha disinfecting portion and the counting portion are arranged sequentially on the disinfecting and cleaning rack; the root canal file holding portion is arranged on the common side of the needle holding portion, gutta-percha disinfecting portion and counting portion. The disinfecting and cleaning apparatus special for needles, root canal files and gutta-percha points is simple to use; reliable positioning of needles and root canal files is guaranteed; it is convenient to clean and disinfect small oral instruments, such as needles and root canal files, and it can be guaranteed that the needles and root canal files never leave needle holding channels and root canal file holding channels during cleaning and disinfecting.

The invention provides a core drill suitable for hard fractured formation. The core drill comprises a core bit, a drill rod, an outer pipe, an inner pipe, a righting block and a bearing portion. The drill rod is connected to the upper portion of the outer pipe, the lower portion of the outer pipe is connected with the core bit, the righting block is arranged on the inner wall of the lower side ofthe outer pipe, the bearing portion is arranged between the inner pipe and the outer pipe, the inner pipe is composed of multiple pipe barrels, the pipe barrels are connected through threads, multipleaxially-symmetric grooves are evenly distributed in the inner wall of each pipe barrel, a core locking mechanism is arranged on each groove, and comprises a springback part, a shaft hole and a core locking plate, the springback parts are arranged on the grooves, the core locking plates are connected with the springback parts through the shaft holes, the core locking plates are in fan shapes, theshaft holes are formed in the two ends of the outer edge of each fan shape, the parts, close to the circle centers, of the fan shapes are arc shapes, tooth-shaped tip teeth are arranged on the arc sides, the multiple core locking plates are arranged, and the core locking plates are spliced to a core locking ring of a split structure. The coring success rate of the fractured formation can be obviously improved, the well drilling coring efficiency is improved, and the coring cost is reduced.

The invention discloses a demoulding device for lift-sub type packaging of batteries. The demoulding device comprises a mould cavity (2) arranged on a first conveyor, a second conveyor and a support (3). The mould cavity (2) is a through hole. A demoulding air cylinder (4), a lifting air cylinder (5) and a conveying air cylinder (6) are mounted on the support (3). The demoulding air cylinder (4) is used for ejecting plastic bubbles (1) to be loosened from the mould cavity (2). The lifting air cylinder (5) is used for taking the plastic bubbles (1) out of the mould cavity (2). The conveying air cylinder (6) is used for conveying the plastic bubbles (1) to the second conveyor. A piston rod of the demoulding air cylinder (4) is positioned below a demoulding station of the first conveyor. An air cylinder wall of the lifting air cylinder (5) is fixed on a movable piece of the conveying air cylinder (6). A piston rod of the lifting air cylinder (5) is provided with a suction nozzle (7) which is positioned above the demoulding station of the first conveyor. With the demoulding device, speed is increased, working efficiency is improved, labor intensity is reduced, labor cost is saved, and the plastic bubbles (1) are prevented from being separated from a lift sub.

The invention discloses a processing device applied to honeysuckle planting. The processing device comprises a frame, wherein a soaking cylinder is fixed on the frame and is filled with a soak solution; the frame is rotationally connected with an air cylinder, and a driving rod is fixedly connected to a piston rod of the air cylinder; a striking mechanism for striking seeds is fixed on the driving rod, and a rotating table is arranged beneath the driving rod; the bottom end of the rotating table is provided with a mixing mechanism for mixing the soak solution. Compared with the prior art, the processing device has the advantages that the seeds can be struck, soaked and mixed under the cooperation of the striking mechanism and the mixing mechanism since the seeds are placed in the soak solution and the driving rod is rotated, so that the seed shells are more completely softened and not isolated from seed embryos; when seeds are sowed, the water absorbing efficiency of seeds is improved, the germination rate is improved, the seed embryos are protected, and the smooth germination of the seeds is guaranteed.

The invention discloses emergency protection equipment for a connecting circuit of an extension socket. A protective box is included, a clamping cavity is arranged in the protection box, and a clamping mechanism is arranged in the clamping cavity. The clamping mechanism comprises a threaded shaft rotatably arranged on a lower end wall of the clamping cavity. The threaded shaft is in threaded connection with two clamping plates. Four placement cavities penetrating through upper end surfaces and lower end surfaces of the clamping plates are arranged in the clamping plates; a rotating shaft is rotatably arranged between front and rear end walls of the placement cavities; and a clamping wheel is fixedly arranged on the rotating shaft. The equipment can be used for placing the extension socket.For a circuit connected to the extension socket, a plug on the extension socket can be ensured not to be separated, a connection circuit is ensured not to be powered off, a certain buffer effect canbe achieved when a person pulls an electric wire by mistake, the electric wire is prevented from pulling a connected electric appliance, and a possibility of accidental damage of the electric appliance is reduced so that comprehensive circuit emergency protection is realized, and the equipment can be automatically adjusted according to different extension sockets and is relatively high in practicability.

The invention relates to the technical field of mobile robots, and discloses a connecting mechanism for a hexagonal omnidirectional mobile robot. The connecting mechanism comprises a mobile robot body and a power mechanism, a plurality of first connecting columns are fixedly connected with the outer walls of multiple sides of the mobile robot body, first connecting panels are fixedly connected to one ends of the first connecting columns, two third inserting shafts are rotatably connected with one sides of the first connecting panels through embedding shafts, left guide head driving gears and right guide head driving gears are correspondingly and fixedly connected with one ends of the two third inserting shafts, conical guide heads are fixedly connected to the other ends of the third inserting shafts, and a plurality of fan-shaped check blocks are integrally formed on the outer sides of the circumferences of the conical guide heads. The fan-shaped stop blocks of the left conical guide heads and the right conical guide heads are clamped with the protruding parts of clamping grooves, so that it is guaranteed that the connecting female head and the connecting male head are not disengaged, then locking and separation of the multiple mobile robots can be rapidly achieved, and the stability of the connecting mechanism is improved.

The invention discloses an auxiliary tool for measuring end cap coaxiality. The auxiliary tool for measuring the end cap coaxiality comprises a base (2) and a plurality of flanges (3), wherein a working face of the base (2) is a plane, the flanges (3) are arranged on the working face of the base (2), and central lines of any two flanges (3) are intersected. The auxiliary tool for measuring the end cap coaxiality is light in weight, convenient to move and capable of being carried to the place where an end cap is located for measurement. In addition, the auxiliary tool for measuring the end cap coaxiality is simple in manufacturing process and low in manufacturing cost, and therefore measuring cost is also low. Further disclosed is a tool for measuring the end cap coaxiality. The tool for measuring the end cap coaxiality comprises the auxiliary tool for measuring the end cap coaxiality and a pulsation measuring instrument.

The invention provides a modified catalyst, a membrane electrode, a preparation method of the membrane electrode and a fuel cell, belongs to the field of fuel cells, and solves the defect of poor durability of a catalyst or a catalyst layer in the prior art. The modification method of the catalyst comprises the following steps: mixing a catalyst comprising a carrier and metal particles loaded on the carrier, a reducing agent and a first solvent to obtain a mixed solution, carrying out thermal reduction treatment on the mixed solution, and carrying out solid-liquid separation to obtain the modified catalyst.

The invention provides an emergency protection device for automobile tire burst, and relates to the field of automobile safety. The emergency protection device comprises a right arc-shaped structuralsheet, a left arc-shaped structural sheet, a U-shaped anti-drop hook and a high-strength bolt group, wherein the right arc-shaped structural sheet and the left arc-shaped structural sheet are movablyconnected through the U-shaped anti-drop hook, a dynamic balance adjusting block is arranged in the high-strength bolt group. The emergency protection device is advantaged in thatthe dynamic balance effect of the device is higher, a tire pressure monitor mounting support is used for fixing a tire pressure monitor, the installation of a tire pressure monitor is facilitated, the device is mounted ina groove of an automobile rim, in the vehicle driving process, the automobile emergency safety protection device is fixed in the groove of the automobile rim, can perform certain emergency safety protection of an automobile, and can effectively ensure that the tire is not separated from the rim and the rim is not in direct contact with the ground after tire burst of the automobile, and thereby that braking does not fail and the direction is not out of control after tire burst is guaranteed, and that the automobile can safely run for a certain distance after tire burst is guaranteed.

The invention relates to cable pulling and arranging equipment, and belongs to the technical field of cable pulling and arranging. The cable pulling and arranging equipment comprises a cable bridge body and a guide rail sliding block trolley, a plurality of wire grooves are evenly formed in the bottom of the cable bridge body in the extending direction of the bridge, and a rack is arranged on the side wall of one side of the cable bridge body in the extending direction of the bridge. Guide rails are oppositely arranged on two side walls of the cable bridge body along the extension direction of the bridge; groove wheels are arranged on the outer walls of the two sides of the guide rail sliding block trolley and are in rolling connection with the guide rails, a servo motor is arranged at the side end of the guide rail sliding block trolley, a gear is arranged on an output shaft of the servo motor and is in meshing transmission with a rack on the cable bridge body, and a wire drawing device is fixedly arranged at the tail of the guide rail sliding block trolley. And the cables are fixedly arranged on the wire pulling device and are respectively embedded into the wire grooves. According to the invention, cable pulling and arranging can be rapidly realized through the cable bridge body and the guide rail slide block trolley, and the construction process of the cable bridge is simplified.

The invention discloses a slide rail support base and a long-span structure system including the slide rail support base. The slide rail support base comprises an upper sliding rail, a lower sliding rail and a middle rotating support base; the middle rotating support base comprises an upper part of support base and a lower part of support base in rotatable connection with each other; the upper part of support base is in sliding connection with the upper sliding rail; the lower part of support base is in sliding connection with the lower sliding rail; length of the upper sliding rail is more than width; length of the lower sliding rail is more than width. Through such an arrangement, the limitation to displacement direction, displacement volume and stress of the traditional support base canbe overcome, height and width of support base can be adjusted according to requirements, stress is reasonable, processing is convenient and the slide rail support base can adapt to complex stressingconditions and can meet the requirements of architectural modeling.

The invention discloses a nursery stock irrigation system for an outdoor planting base. The system comprises a reservoir, wherein a water pump is arranged outside the reservoir and is fixedly connected with a main pipeline, multiple branch pipes are fixedly connected to the main pipeline, washers are fixedly connected to the inner bottom ends of the branch pipes, first limiting rings are fixedly connected to the inner walls of the branch pipes, and telescopic spraying devices are arranged in the branch pipes; and each telescopic spraying device comprises a water spraying pipe, a hollow baffleis fixedly connected to the outer wall of the bottom of the water spraying pipe, an air cushion ring is fixedly connected to the bottom surface of the hollow baffle, and a second limiting ring is fixedly connected to the outer wall of the water spraying pipe. The diameter of circular top plates is equal to that of inner rings of the branch pipes, gaps between the branch pipes and the telescopic spraying devices are reduced, and foreign matter is prevented from entering the branch pipes. The inner ring diameter of the hollow baffles is equal to the outer ring diameter of the water spraying pipes, the outer ring diameter of the hollow baffles is larger than the diameter of the branch pipes, and the telescopic spraying devices are prevented from being separated from the branch pipes.

The invention discloses a phased array ultrasonic detection self-adaptive balance probe bin for fillet welds of tubes and tube plates, which comprises a bin cover, a bin body and a roller frame, and is characterized in that the bin cover is arranged above the bin body, is connected with the bin body in a sliding manner, can slide in the horizontal direction relative to the bin body, and can drivethe bin body to rotate in the vertical direction; a groove is formed in the bin body, and a probe wedge block and a piezoelectric wafer are arranged in the groove and pressed through a gland. The roller frame is fixed to the face, back on to the bin body, of the gland, a spring is arranged between the roller frame and the gland, and a roller is installed in the roller frame. The problems that in the scanning process, a probe is not tightly attached to the inner wall of a pipe, poor in contact, unstable in operation, poor in coupling, lost or drifted in signal, inaccurate in positioning and thelike are solved.

The invention belongs to the technical field of heat energy recovery boilers, in particular to an industrial flue gas heat recovery boiler based on spiral spraying. The industrial flue gas heat recovery boiler comprises a boiler shell, a sealing partition plate, a flue gas discharge box, a water tank, a heat insulation layer, a motor, a rotating shaft, a fan, a spiral flue gas pipeline and a wateroutlet pipe. According to the industrial flue gas heat recovery boiler based on spiral spraying, industrial flue gas enters the spiral flue gas pipeline, the temperature of the spiral flue gas pipeline rises, meanwhile, water in the water tank is sprayed out through a water outlet of the water outlet pipe, the sprayed water makes contact with the spiral flue gas pipeline, the water is vaporized,a large amount of water vapor is generated, industrial flue gas heat recovery is achieved, a large amount of energy is saved, and meanwhile, the environmental pollution is reduced; the spiral flue gaspipeline is arranged, so that the contact area between the industrial flue gas and the spiral flue gas pipeline is increased, the contact area between the industrial flue gas and water is increased,the speed of converting the water into the water vapor in unit time is increased, and then the efficiency of converting the water into the water vapor is improved.

The invention relates to a tuning fork liquid level switch convenient to maintain and overhaul. The tuning fork liquid level switch comprises a box body, a rotating arm, a vibration fork, a base and a motor. A rotating shaft is installed on the surface of one side of the box body in a penetrating mode, the motor is arranged in the box body, the rotating arm is rotatably installed on one side of the motor, the vibration fork is arranged on one side of the rotating arm, and the base is arranged on one side of the vibration fork. A spring is arranged between the base and the vibration fork, a guide rail is arranged in the base, the vibration fork is movably inserted into the guide rail, a limiting key is arranged on one side of the base, and a limiting groove is formed in the inner wall of the box body. The motor is started and rotates to drive the rotating arm to rotate, so that the vibration fork vibrates back and forth in the guide rail at a fixed frequency, when the liquid level reaches the vibration fork part, the vibration frequency is changed, a vibration sensor senses a signal and transmits the signal to a control end, a liquid level control effect is achieved, and the problem that part of tuning fork liquid level switches are inconvenient to disassemble and overhaul quickly is solved.