59results about How to "Guaranteed position" patented technology

This invention belongs to the field of medical device technology and discloses a foot pressure relief device for diabetic foot. It includes a base, a pressure relief plate and a motor connected to the base, and a foot pedal and a transmission assembly connected to the pressure relief plate. The transmission assembly includes a crank, a first connecting rod, and a sliding seat. The crank is fixedly connected to the output shaft of the motor, and the sliding seat is connected to the pressure relief plate. The two ends of the first connecting rod are respectively connected to the crank and the sliding seat. The sliding seat is connected to a foot rolling shaft and a second connecting rod, and the second connecting rod is connected to a foot massage roller. A buffer spring is provided between the pressure relief plate and the base. The foot pedal has a through groove, and the foot rolling shaft is connected to a foot massage roller. This invention utilizes the foot rolling shaft / foot massage roller and the foot massage roller to simultaneously perform rolling massage on the sole and instep of the foot. The periodic oscillation of the pressure relief plate causes the heel and toes to alternately rise, resulting in good pressure relief for the foot.

The utility model discloses a kind of flattening devices for side slope construction, to provide a kind of flattening device for side slope construction can be to the plane after cutting slope is flattened.It includes: mobile seat, the mobile seat is installed with positioning assembly;Corner assembly, the corner assembly is installed in the side of mobile seat and is rotatably connected with mobile seat;Vibration assembly, the vibration assembly is installed on corner assembly.The beneficial effects of the utility model are: can be to the plane after cutting slope is flattened, angle is adjusted easily, the movement of vibration plate can be realized, can pull vibration plate and cam is pasted, the position of mobile seat can be guaranteed, stability can be improved, the movement of mobile seat is facilitated.

The utility model discloses a laser rangefinder for lifting a table board, which comprises a shell and a laser ranging module arranged in the shell, the shell is provided with a probe hole for laser to penetrate through, the shell is also provided with a notch part, the inner side of the notch part comprises a first reference surface and a second reference surface which extend in different directions, and the first reference surface and the second reference surface are arranged on the shell. The extension direction of the first reference surface is perpendicular to the extension direction of the probe hole. According to the lifting table, the ground clearance of the lifting table board can be accurately measured through the laser range finder, whether the lifting table board is inclined or not can be conveniently judged, and the laser range finder can be rapidly positioned on the lifting table board so that measurement can be conveniently conducted. In addition, the utility model further discloses an electric lifting table provided with the laser range finder.

The utility model discloses a half axle wheel end face positioning's differential housing vertical clamping device, its characteristics is, including base assembly, positioning device, pressure total assembly, side positioning assembly, the base assembly on be equipped with positioning device and side positioning assembly, positioning device on be equipped with pressure total assembly, positioning device pass through the support block support differential housing half axle wheel end face, positioning device pass through the positioning core axle and position differential housing radial center, side positioning assembly pass through the bolt to fix differential housing petal appearance, and position differential housing circumferential position, pressure total assembly pass through the opening pad and second nut and press tightly differential housing, be suitable for processing differential housing big end face hole, guarantee differential housing big face hole relative to half axle wheel hole's position degree, and the processing quality is stable, and frock structure is simple, and production efficiency is high, reduces the labor intensity of worker and production cost.

According to the technical scheme, the magnetic attraction type curtain handle is characterized by comprising a pair of split handle bodies, a cavity is formed in each handle body, a magnetic piece is arranged in each cavity, and the magnetic pieces in the pair of handle bodies attract each other so that the pair of handle bodies can attract each other to form a whole. According to the utility model, the split type handles are adopted, and the two handles can be mutually attracted and fixed, so that the positions of the two rows of bead pulling ropes connected to the handles are mutually fixed, the bead pulling ropes cannot randomly shake, and the bead pulling ropes are prevented from being mutually wound and knotted.

The application discloses a jig for keeping the position degree of a casting, which comprises a jig for keeping the vertical position degree of the main platform and the side platform of the casting. The side platform positioning block pulls the side platform of the casting to tightly adhere to the positioning baffle, and the locking pressing plate is used for pressing the main platform of the casting to adhere to the top surface of the base, so that the vertical position degree of the main platform and the side platform of the casting which have been kept perpendicular is kept during the repair welding process, and the problem that the position degree of the main platform and the side platform needs to be kept perpendicular when the two parts cannot be tightly pressed for the repair welding of the casting in the prior art is solved.

This invention relates to the construction of water conservancy projects, and more particularly to retaining walls for water conservancy projects. The retaining walls are constructed from multiple precast raft slabs connected in series. The precast raft slabs provide a better foundation for the construction of the retaining walls and offer better resistance to settlement and displacement during later use. Compared to direct masonry, the precast raft slabs offer better waterproofing and can be prefabricated, saving construction time. A connecting device is provided between adjacent precast raft slabs to better adjust and maintain their position, improving operational stability. A waterproof structure is provided at the connecting device to prevent water erosion of the dam and to strengthen the connection between adjacent precast raft slabs.

A turbine guide fixing structure, an aero-engine, the fixing structure comprises a connecting cylinder, a hollow cylinder structure with both ends open, used for connecting with high guide vanes on the turbine guide; a connecting disc, a circular ring shape, used for connecting with an outer casing; a bellows, one end of which is welded with the end of the connecting cylinder, and the other end is welded with the inner ring surface of the connecting disc. The aero-engine comprises the turbine guide fixing structure. In the application, by using the connecting cylinder with both ends open, it is used for connecting with the high guide vanes on the turbine guide, and at the same time, by using the connecting disc, it can be used for connecting with the outer casing. The connecting cylinder and the connecting disc are connected through the bellows, so that when the turbine guide is hot deformed, by using the bellows structure, radial displacement can be achieved, and at the same time, when the turbine guide is subjected to axial force, axial displacement can be achieved, and vibration energy can be absorbed, and the vibration of the turbine guide is relieved.

The utility model discloses a mobile phone middle frame MIM piece screw locking positioning jig which comprises a base and a jig body, a middle frame positioning bottom plate is installed on the jig body and used for positioning and placing a mobile phone middle frame, and an X-direction air cylinder and a Y-direction air cylinder are correspondingly arranged at the positions, corresponding to the installation position of an MIM piece on the mobile phone middle frame, of the jig body. A Z-direction air cylinder connecting block is fixedly installed at the output end of the Y-direction air cylinder, a Y-direction sliding rail is correspondingly arranged on the jig body, the Z-direction air cylinder connecting block slides along the Y-direction sliding rail, a Z-direction air cylinder is fixedly installed on the Z-direction air cylinder connecting block, a Z-direction pressing block is fixedly connected to the tail end of a Z-direction air cylinder output shaft of the Z-direction air cylinder, and the Z-direction pressing block is used for pressing the front face of the MIM piece. An X-direction pressing block is fixedly installed at the output end of the X-direction air cylinder and used for pressing the side face of the MIM piece. The X-direction and Z-direction simultaneous compression positioning is realized by adopting a three-cylinder linkage mode, and meanwhile, the Z-direction avoids a product structure when the cylinders exit in the X-direction and the Y-direction, so that the jig is effectively prevented from colliding with a product.

This invention discloses a method for estimating the speed and position of a permanent magnet synchronous motor (PMSM) based on a third-order switched extended state observer. Specifically, based on the mathematical model of the PMSM, a back-EMF observer based on a sliding mode observer is constructed to obtain the estimated back-EMF. Further, the estimated back-EMF signal is processed using a low-pass filter and amplitude normalization. The processed back-EMF is then used as the input signal to a position estimation scheme based on the third-order switched extended state observer, achieving accurate estimation of the PMSM's speed and position under different operating conditions. This invention is simple in principle and easy to implement. It combines the advantages of both third-order linear and third-order nonlinear extended state observers, improving estimation accuracy and dynamic performance while reducing the adverse effects of noise on the estimation scheme. This solves the technical problems of low estimation accuracy, high noise sensitivity, and difficulty in parameter tuning in existing estimation schemes.

This utility model relates to the field of electrical connectors that allow relative movement between coupled components, such as floating or automatic mating, and particularly to a floating socket and a floating connector. The floating socket includes a floating insulator and socket terminals. The socket terminals include a plug end, a fixed end, and a floating portion located between the plug end and the fixed end. The plug end is fixed to the floating insulator. The fixed end of the socket terminal is connected to a fixing seat for fixing the floating socket. The fixing seat includes a socket housing and two or more insulating blocks fixed relative to the socket housing. The fixed end of the socket terminal is assigned to different insulating blocks and fixed by the corresponding fixing blocks. This utility model's floating socket solves the problem of low yield caused by the difficulty in manufacturing the fixed insulator in existing floating sockets.

The utility model relates to power battery technical field and provide a kind of battery cover plate and battery.The battery cover plate includes cover plate body, the pole post being equipped in the mounting hole of cover plate body, and plastic part and sealing element;Plastic part includes the first plastic part and the second plastic part of being equipped in the both sides of cover plate body;Sealing element includes the first sealing element and the second sealing element of being set on pole post, first sealing element is close to the first plastic part setting, the second sealing element is close to the second plastic part setting, and first plastic part, first sealing element, second sealing element and second plastic part can be insulated and sealed between cover plate body and pole post;The both ends of pole post are respectively provided with support part and pressing part, support part is at least used to support first plastic part, and pressing part is by second sealing element and is pressed tightly on cover plate body on second plastic part.The battery cover plate of the utility model not only can guarantee the reliability of first plastic part and second plastic part installation, but also can improve the sealing performance of battery cover plate.

The utility model relates to an ophthalmic operation in -process doctor hand department support bracket, include: strip frame, positive and negative screw rod, support, support pole, mounting bracket, screw, positioning pipe, screw pipe and rotating lifting assembly, the inside sliding installation of strip frame has the support, the outer surface of support is through rotation and is installed to have positive and negative screw rod, and two supports are all with positive and negative screw rod screw connection, the outer surface fixed connection of strip frame has the positioning pipe, and the inside sliding installation of positioning pipe has mounting bracket, the outer surface of positioning pipe is through the installation and has screw pipe, and the inside screw of screw pipe installs screw, the top of two supports all rotation and are installed to have support pole, the outer surface fixed connection of strip frame has, the outer surface installation of support pole has rotating lifting assembly, guarantee the palm and arm adjustment height, position and comfort degree when the doctor operation, prevent the traditional operation process in -process misinjury patient of doctor arm tiredness leading to arm instability, guarantee its use safety.

The utility model relates to the technical field of kitchen pretreatment, in particular to a waterproof sealing type speed reducer which comprises a speed reducer body, a rack and a main shaft and further comprises a sealing kit arranged between the speed reducer body and a cover plate at the tail end of a spiral conveyor. The sealing kit comprises a packing sealing seat, a packing gland, a packing, a sealing gasket, a rear sealing seat and a lip-shaped framework sealing gasket, the packing sealing seat and the rear sealing seat are installed at the two ends between the speed reducer and a tail end cover plate of the spiral conveyor respectively, and the main shaft is arranged in the packing sealing seat and the rear sealing seat in a penetrating mode. The packing is arranged between the packing sealing seat and the main shaft, the packing gland is installed on the packing sealing seat and used for pressing the packing, and the lip-shaped framework sealing gasket is arranged between the rear sealing seat and the main shaft. And kitchen sewage can be effectively prevented from entering the speed reducer.

This invention provides a sample drying device for raw ore sample analysis. The device includes a body with a heating tube fixedly connected to its inner wall and a turning assembly inside the body. In this device, the sample box rotates with the clamping frame, causing the sample to continuously change angles in space. This allows hot air to contact the sample surface from different directions, increasing the rate of moisture evaporation. Compared to static heating, this method better avoids localized moisture retention and improves drying uniformity. A turning plate moves the raw ore sample within the sample box, continuously loosening and turning the sample, constantly mixing the internal and external samples, significantly reducing the risks of agglomeration, sintering, and coking. Because the turning direction is perpendicular to the main rotation direction, the raw ore sample moves synchronously in both directions, resulting in more uniform drying and more comprehensive penetration of hot air into the sample.

A roll forming online zinc scraping device includes a scraper assembly, a clamping assembly, and a mounting support. Two sets of scraper and clamping assemblies are symmetrically fixed at both ends of the mounting support. Two sets of clamping assemblies are symmetrically positioned between the two sets of scraper assemblies. The mounting support is mounted on the forming assembly. Each scraper assembly includes a slide groove, a first adjusting bolt, a blade holder, and a scraper. The slide groove is fixed to the top of the mounting support. The blade holder is L-shaped, with its long arm fixed to the slide groove by the first fixing bolt. The scraper is fixed to the end of the short arm of the blade holder. One end of the first adjusting bolt is threaded to the end of the long arm of the blade holder, and the bolt head at the other end is engaged with the outer end of the slide groove. A locking nut is provided on the first adjusting bolt located inside the slide groove. This zinc scraping device can conveniently, quickly, and stably remove the zinc layer from the surface of galvanized sheets, ensuring welding quality.

The utility model relates to a kind of municipal inspection well mouth suspension formwork devices, its structure includes support frame, adjustable suspension mechanism and adjustable well mouth formwork;Adjustable well mouth formwork is enclosed into circle, adjusting hole is respectively set in the two ends of adjustable well mouth formwork, and fastening bolt is threaded in adjusting hole, the two ends of adjustable well mouth formwork are fixedly connected by fastening bolt, at least three adjustable suspension mechanisms are provided on support frame, adjustable suspension mechanism lower end is connected with adjustable well mouth formwork.It also includes two adjustable inner support rods, four insertion sleeves are provided on the inner wall of adjustable well mouth formwork, two adjustable inner support rods are cross set, the two ends of adjustable inner support rod are respectively inserted with one insertion sleeve, the inner diameter of insertion sleeve is greater than the diameter of adjustable inner support rod end portion.The utility model can effectively guarantee the structure size, position and elevation of inspection well well mouth, and can effectively improve construction quality.The utility model is simple to install, convenient to adjust, and is convenient for repeated use.

A pipeline quick-mounting structure of subway tunnel electromechanical equipment comprises a subway pipeline, a rotating clamping plate, a side connecting lug, a rotating shaft, a semi-arc clamping plate, a positioning inserting column, a semi-arc plate, a side U-shaped sleeve and a T-shaped sliding block, pipeline side discs are arranged on the side face of the subway pipeline, the adjacent pipeline side discs are attached, the outer diameters of the adjacent pipeline side discs are the same, and the outer diameter of the T-shaped sliding block is larger than that of the rotating clamping plate. The positioning inserting columns sequentially penetrate through the adjacent pipeline side discs, the multiple positioning inserting columns are evenly distributed on the pipeline side discs, the positioning inserting columns are aligned with the side faces of the pipeline side discs, the inner sides of the rotating clamping plates are attached to the subway pipeline, the side connecting lugs are connected with the subway pipeline, and the side faces of the rotating clamping plates are attached to the side connecting lugs. The side faces of the rotating clamping plates are connected with symmetrical side connecting lugs through rotating shafts.

The utility model provides an insulin indwelling needle outer needle side cover assembling device. The insulin indwelling needle outer needle side cover assembling device comprises a vertical moving assembly, the bottom of the vertical moving assembly is fixedly connected with a fourth mounting plate, one side of the top of the fourth mounting plate is fixedly connected to one side of an upper support, and one side of the bottom of the fourth mounting plate is fixedly connected to one side of a lower support. One side of the fourth mounting plate is fixedly connected with a third guide rail, the top of the third guide rail is slidably connected to the bottom of a third sliding block, the top of the third sliding block is fixedly connected to one side of a fifth mounting plate, the top of the fifth mounting plate is fixedly connected to the bottom of a spring, and the top of the spring is fixedly connected to the bottom of an upper support; the insulin indwelling needle outer needle side cover assembling device has the advantages that automation and high precision are achieved, it can be guaranteed that the assembling process of each product is consistent, the consistency and reliability of the product quality are improved, and the rejection rate is reduced.

The utility model discloses a silica gel outer cover water stop, it includes water stop body and one or above's extension section, between water stop body with extension section, between extension section with extension section is equipped with detachable connecting structure and sealing connecting structure, water stop body includes first hardware spare and first silica gel outer ring, extension section all includes second hardware spare and second silica gel outer ring, first silica gel outer ring and second silica gel outer ring all are equipped with outer ring anti -infiltration water structure. The utility model discloses a detachable connecting structure that is formed by the card groove structure and the clamping block structure can constitute the water stop of different length, friction requirement according to demand, improve the applicability, reduce the customization cost, and through setting up sealing connecting structure is used for guaranteeing the connecting sealing property between water stop body with extension section, extension section and extension section, guarantees the subsequent use of silica gel outer cover water stop.

The utility model relates to the technical field of cable lubrication, in particular to a cable lubrication device. Comprising a lubricating box, guide rollers are installed at the two ends of the lubricating box, a first sponge lantern ring is installed at the end of the lubricating box in a clamped mode, a driving motor, an auxiliary roller, a first bevel gear, a second bevel gear and a transmission gear are installed on the outer side of the lubricating box, and an inner gear, a smearing lantern ring and a second sponge lantern ring are connected to the lower portion of the transmission gear in an engaged mode. A lubricating liquid bin, a telescopic motor, a material pushing plate and a pipeline are installed at the top of the lubricating box, and a discharging nozzle is connected to the lower portion of the pipeline. A telescopic motor pushes a material pushing plate to convey lubricating liquid to a discharging nozzle through a pipeline and then make uniform contact with a cable, when a transmission gear drives an inner gear to rotate, a smearing lantern ring and a second sponge lantern ring are driven to evenly coat the outer side of the cable with the lubricating liquid, and after the lubricating liquid is quantitatively added, the second sponge lantern ring is used for rotary smearing; and the lubricating liquid can be uniformly laid on the outer side of the cable, so that the lubricating uniformity of the cable is ensured.

The utility model relates to the technical field of building equipment, in particular to an assembly type cement bearing column structure which is characterized in that a base is arranged at the upper end of a bottom plate, a bottom groove is formed in the base, a plurality of grooves are formed in the bottom of the bottom groove, and the bottom ends of a plurality of steel bar bodies are inserted into the specified grooves; the protective sleeve is located above the base, positioning holes are formed in the four corners of the base, and a plurality of positioning blocks inserted into the positioning holes are arranged at the lower end of the protective sleeve. An assembly type design is adopted, a plurality of procedures of traditional on-site cement bearing column manufacturing are converted into prefabrication and assembly, tedious operations such as on-site formwork erecting and reinforcing steel bar binding are reduced, the construction efficiency is improved, and the construction cost is reduced. And compared with a traditional mode, the construction speed can be greatly increased.

The application discloses a kind of tank top defect detection system, method and equipment.The method includes: tank top is divided into at least one detection area, at least one excitation sensor band and at least one receiving sensor band are arranged in detection area;Excitation signal instrument generates and outputs corresponding first electric signal according to detection instruction signal sent by host computer;Excitation sensor band receives the first electric signal and converts first electric signal into acoustic signal and propagates on tank top;Receiving sensor band collects acoustic signal of tank top, and converts the acoustic signal collected into second electric signal;Signal collection instrument collects second electric signal according to the receiving instruction signal of host computer and transmits to host computer, and tank top defect analysis is carried out in host computer to realize the detection of tank top defect.The tank top defect detection method of the application simplifies the arrangement process of sensor band, and simultaneously, operation is simple and convenient, and tank top detection cost is reduced.

The utility model discloses a premature water bag mattress with a head orthopedic function, which comprises a flat mattress body capable of being filled with water, the mattress body is flat, in order to avoid large fluctuation height change, drawstrings made of consistent materials can be arranged in the mattress body at equal intervals and are uniformly distributed, and the mattress body is connected with a heating mechanism for heating water. The heating mechanism can adopt existing intelligent heating and can control the temperature, a groove corresponding to the head is formed in the cushion body, the head can be conveniently placed, sliding and attention are not prone to occurring, the groove is not too deep, a water bag mechanism capable of supporting the head is detachably connected to the circumferential direction of the groove, and the water bag mechanism can be detached so that the position can be conveniently adjusted, and the premature infant can be better attached. The water bag mechanism can deform to support the head and keep the head warm, and the water bag mechanism not only can plastically position the head, but also can heat and keep the head warm.

This invention relates to a grouting sleeve installation device and a method for fixing the grouting sleeve. The grouting sleeve installation device includes a fixing rod, a rebar limiter, fixing bolts, washers, and an inflation device. The fixing rod is fixed to the side mold of a precast concrete component. The top of the fixing rod is equipped with a rebar limiter, and the tail of the fixing rod is equipped with a valve core. The fixing rod is made of rubber and is hollow inside, allowing for inflation and deflation through the valve core. The grouting sleeve installation device of this invention has a simple structure and is easy to operate. It produces precast components with high rebar positioning accuracy and effectively prevents rebar misalignment, significantly improving precast component production efficiency and error tolerance while saving labor.

The invention belongs to the technical field of laser application, and relates to a femtosecond laser processing method based on micro-nano array attachment, which comprises the following steps of: 1) acquiring a three-dimensional curved surface workpiece to be processed; 2) extracting a target curved surface on the surface of the three-dimensional model, performing discretization processing, and generating a triangular patch mesh model; 3) performing shape fidelity mapping to a two-dimensional plane domain to obtain a two-dimensional plane model; 4) importing a two-dimensional processing array and carrying out Boolean intersection operation on the two-dimensional processing array to obtain a public area of the two-dimensional plane model and the two-dimensional processing array; 5) performing triangulation processing to obtain a plane region before inverse mapping; 6) mapping to a three-dimensional space to obtain an attached and segmented three-dimensional model; 7, a laser machining path is generated, and femtosecond laser machining is conducted on the three-dimensional curved surface workpiece to be machined through the laser machining path. According to the femtosecond laser machining method, the calculation complexity can be reduced, the expression accuracy of the two-dimensional micro-nano array attachment pattern boundary in the three-dimensional space can be improved, and different machining requirements can be flexibly met.

A fixed-length drilling clamp for a proportion electromagnet armature assembly comprises a base, a fixed-length tool and a groove-shaped positioning block are fixedly installed on the base, the fixed-length tool is provided with a first positioning face and a second positioning face from back to front, a clamping device is arranged behind the groove-shaped positioning block, the clamping device comprises a fixed block fixedly arranged on the base, and the fixed-length tool is provided with a first positioning face and a second positioning face. A through hole in the front-back direction is formed in the fixing block, an internal thread is machined at the rear end of the through hole, a jacking sliding block is installed in the through hole in a sliding mode, a middle hole is formed in the jacking sliding block, a shaft shoulder part is arranged at the front end of the middle hole, a variable-diameter jacking block with the small front part and the large rear part is installed on the front portion of the middle hole in a sliding mode, the small-diameter part of the jacking block penetrates through the shaft shoulder part, and a thread is arranged at the rear end of the middle hole. An adjusting jackscrew is screwed on the thread, a spring is installed between the adjusting jackscrew and the ejecting block, the front portion of the ejecting sliding block is provided with an extending portion extending forwards, and an external thread barrel is screwed on the thread on the rear portion of the through hole. The fixture is accurate and stable in positioning and high in clamping efficiency.

The utility model belongs to the technical field of automatic winding and packaging equipment, and particularly relates to automatic copper wire winding and packaging equipment which comprises a rack, the top end of the rack is connected with a winding and packaging mechanism, the side wall of the rack is provided with a control panel, and the top end of the rack is connected with a fixing column. Through cooperation of the servo motor, the threaded rod, the first sliding groove, the lifting rod, the first sliding block and the pressing plate, flexible lifting adjustment of the pressing plate can be achieved. On the basis, by means of the matched design of the pressing plate, the extension plate and the extrusion pin, the extension plate can extend out of the pressing plate, and the overall length is effectively increased. In this way, the situation that due to the tension effect of the packaging cloth, the copper wire moves in the winding and packaging process, and then the copper wire is disengaged from a clamping rod of the winding and packaging mechanism can be effectively avoided. In addition, due to the design, the position of the copper wire can be guaranteed, deviation of the copper wire is avoided, the winding and packaging efficiency of the copper wire is remarkably improved, and it is guaranteed that packaging work can be carried out more smoothly and efficiently.

This utility model relates to the field of vehicle battery swapping technology, specifically to a chassis battery swapping device. The chassis battery swapping device includes a vehicle, a battery box, a guide assembly, a first locking assembly, and a second locking assembly. The vehicle includes an interconnected vehicle body and a main beam. The guide assembly includes a first guide unit. Both the first locking assembly and the first guide unit are partially connected to the main beam and partially connected to the battery box. The chassis battery swapping device includes a locked state. The locked state includes the first locking assembly restricting the battery box from moving away from the main beam, and the first guide unit restricting the battery box from moving closer to the main beam. This solves the problems of complex and low reliability in the connection structure between the battery box and the vehicle in chassis battery swapping devices. Furthermore, the connection method of this utility model is a flexible connection, which can prevent damage to the battery box structure due to the torsion and deformation of the vehicle main beam during vehicle operation.

The utility model discloses a chemical agent diluting device, include: main pipe, the one end of main pipe is closed and is set, branch pipe, its fixed setting is at the outside of main pipe, the other end fixed setting of branch pipe has venturi, valve body, its fixed setting is on the main pipe, the valve body has the inner chamber in, the main pipe inside is set up and is connected with the intercommunication hole of inner chamber, the liquid inlet of branch pipe is through with the inner chamber and is set, valve core, the upper end of valve core is used to the liquid inlet of branch pipe is closed, iron core, the iron core is up and down swing setting in valve body, the upper end of iron core and the lower end of valve core are in contact and set, movable cylinder, its fixed setting is at the outside of valve body, the outer ring of movable cylinder is up and down swing and is set with magnet, pass magnet and open and close the valve, need manpower to keep when opening the valve, and magnet will release the magnetic attraction connection of iron core after losing external force, thereby automatic closing the valve, avoid the situation of forgetting to close the valve.