41results about How to "Simplify work" patented technology

The utility model relates to an electromagnetic retarding dual-motor second-gear power uninterrupted driving integrated system, which comprises a first motor, a first input shaft, a first constant mesh gear set, a first intermediate shaft and a first gear shifting set which are connected in sequence, the first normally engaged gear set is connected with the first gear shifting set through the first intermediate shaft. The second motor, the second input shaft, the second constant mesh gear set, the second intermediate shaft and the second gear shifting set are connected in sequence, the second motor is connected with the second constant mesh gear set through the second input shaft, and the second constant mesh gear set is connected with the second gear shifting set through the second intermediate shaft at the same time; an output gear and an output shaft are further included, the first gear shifting set and the second gear shifting set are both meshed with the output gear, and the output gear is connected to the output shaft in a sleeving mode and drives the output shaft to rotate. A plurality of gears connected with the first motor and the second motor respectively form two symmetrical modules, so that the maintenance is more convenient.

The utility model discloses an electromagnet which comprises a support body and a cover plate fixedly arranged on one side of the support body. An execution assembly is arranged in the support body, the bottom and the top of the support body are both provided with anti-seismic colloid, the bottom is further provided with a PIN terminal, the PIN terminal is electrically connected with the execution assembly, and the connecting position of the PIN terminal and the execution assembly is wrapped by an insulation connecting bridge. The execution assembly comprises a winding supporting piece, a limiting shaft sleeve, an iron core, a permanent magnet and a coil. The two ends of the limiting shaft sleeve are provided with limiting holes, and sliding limiting of the iron core is achieved through a guide block and a positioning base. The anti-seismic performance, the integration level and the installation convenience of the electromagnet can be improved, meanwhile, the leakproofness and the insulativity of the welding part are ensured, and the electromagnet is suitable for an automobile ABS system.

The utility model provides a kind of lighting device with external control panel, comprising: lamp body (1), and the control unit for controlling the whole lamp work of lamp body (1) is located in lamp body (1) inside, the lamp body (1) has the lamp cap (11) of producing light;It further includes the control panel (2) for setting lamp body address parameter, the control panel (2) is independent of the lamp body (1) setting and with the control unit signal connection, the control panel (2) obtains lamp body information from the control unit and is shown by its own display, and sends control signal to the control unit.The utility model on the one hand facilitates the information reading of the lamp body with secret installation position to quickly locate the abnormal problem of luminaire, upgrades and maintains luminaire using control panel, simplifies maintenance work, effectively reduces maintenance cost;On the other hand, the lamp body does not need to open window again for installing control panel, improves the sealing property and reliability of lamp body.

The invention provides a service decoupling method and system for a vehicle-mounted audio system, and belongs to the technical field of automotive electronics and software architecture.The method includes the steps that communication interfaces of all external function modules are managed in a unified mode by building an intermediate service layer, and a core audio service layer is built and specially used for processing audio service logic; the core audio service layer establishes two-way communication with the middle service layer through a predefined interface protocol packet, and in the operation period, all data interaction between the core audio service layer and the external module is transferred through the middle service layer. According to the invention, the complete decoupling of the core audio service and the external module is realized, and the flexibility, the expandability, the stability and the development and maintenance efficiency of the system are remarkably improved.

The utility model discloses an assembled light inner partition wall splicing node structure belongs to splicing node technical field, including support frame, connecting plate and adapter pole, the both sides of support frame all are established recessed mounting slot, the both sides of connecting plate all are fixedly connected with the first convex mounting block of recessed mounting slot adaptation, the one side and the front of adapter pole all are fixedly connected with the second convex mounting block of recessed mounting slot adaptation, the front of fender is fixedly connected with fixed frame, the upper and lower surface of support frame all are fixedly installed with fixed plate, the front and back of fixed plate all are fixedly connected with fixed assembly. The utility model discloses through setting up support frame, has simplified the assembly process, improved work efficiency, satisfied the diversified use demand, through setting up fixed assembly, effectively prevented the component loosening or falling off in the use, improved the security and stability of overall structure, simplified maintenance work, reduced maintenance cost.

The utility model relates to a switch with high heat dissipation efficiency, which relates to the technical field of switches, and comprises a switch main body, a cabinet door rotatably connected to the outer end of the switch main body, an air hole dug in the outer end of the switch main body and located on the upper side of the cabinet door, an air outlet hole dug in the right end of the switch main body, and an exhaust fan installed in the air outlet hole. A square annular groove located on the outer side of the air hole is formed in the outer end of the switch body, a filter screen frame is inserted into the square annular groove, a first filter screen is fixedly connected to the inner wall of the filter screen frame, four evenly-distributed storage grooves are formed in the inner bottom end of the square annular groove, and insertion rods fixedly connected with the filter screen frame are inserted into the storage grooves. Springs are fixedly connected between the insertion rods and the bottom ends in the storage grooves, mounting holes are formed in the left end and the right end of the filter screen frame, and baffles are inserted into the mounting holes, so that the surface of the filter screen can be cleaned, the ventilation efficiency of the filter screen is improved, dust entering the switch is reduced, and the heat dissipation efficiency of the switch is improved.

The application discloses a cigarette storage library suitable for different cigarette diameters and belongs to the technical field of cigarette packaging equipment. The storage library comprises a rack, a storage guide unit and a lower library guide carding unit. The improvement lies in that a replaceable stirring roller assembly is arranged at the cigarette flow path entrance of the lower library guide carding unit, the assembly is provided with a plurality of screen bars capable of being independently rotated, and different diameter cigarettes are adapted by replacing assemblies with different screen gap widths. Meanwhile, the storage library is provided with replaceable downstream modules, including a carding mechanism and a packaging mold box, and each module is replaced quickly through a standardized interface. The application realizes quick adaptation of a single device to multiple diameter cigarettes, solves the problems of high cost and complicated replacement of a traditional multi-library mode, and improves production flexibility and efficiency.

A kind of transfer mechanism for circuit board production, including base, driver, horizontal sliding table and slidingly connected on horizontal sliding table intermediate transfer conveyor.The intermediate transfer conveyor is provided with limit seat for detachably installing carrier plate, and the carrier plate is provided with positioning slot for fixing circuit board.Each buffer assembly is provided with limit sliding slot on horizontal sliding table, sliding block slidingly fitted in the slot and spring connecting sliding block and conveyor at the front and rear ends of the intermediate transfer conveyor in moving direction.The length of limit sliding slot is less than half of the stroke of conveyor, and when the conveyor is located at the midpoint of stroke, sliding block abuts the inner end of sliding slot, and both sides of spring are in natural state.The mechanism realizes multi-stage buffer smooth start and stop through buffer assembly, effectively absorbs motion impact, prevents circuit board components from displacement or damage due to vibration, and has simple and reliable structure.

This utility model relates to the field of hinge technology and discloses a hinge with a buffer function. The hinge adopts a top-post sliding and guiding closing buffer structure. A ball-head top post is installed inside the top post mounting hole on the inner side of the inner edge of the movable hinge by a spring. An annular guide groove is provided on the inner side of the fixed hinge. The ball-head top post is movably installed on the inner side of the movable hinge by a spring. During operation, the end of the ball-head top post slides and is supported on the inner side of the annular guide groove. With the help of the buffer protrusion provided on the inner edge of the annular guide groove, when the hinge reaches the closing stop point, the elastic retraction of the ball-head top post, guided by the protrusion, absorbs the closing impact and achieves closing buffer protection for the hinge. The structure is simple and the operation is reliable. After closing, the ball-head top post end engages with the inner edge of the buffer protrusion in the annular guide groove, which can temporarily flip and limit the hinge after closing, avoiding accidental closing caused by external force, and greatly improving the working reliability of the hinge.

The utility model provides a gantry type electroplating automatic device which comprises a base, an electroplating pool is formed in the base, guide rails are fixedly mounted on the left side and the right side of the upper surface of the base, sliding blocks are slidably connected to the exteriors of the guide rails, and a gantry frame is fixedly mounted on the upper surfaces of the two sliding blocks; a hydraulic rod is fixedly mounted on the upper side surface of the portal frame, a connecting plate is fixedly mounted at the lower end of the hydraulic rod, and a filtering mechanism is arranged in the electroplating tank. Through the use of the filtering mechanism, impurities such as particulate matters and chemical reaction residues can be effectively intercepted and removed, and the purity of electroplating liquid and the stability of the electroplating process are improved, so that high quality, high uniformity and consistency of an electroplated layer are ensured, surface flaws are reduced, the service life of the electroplating liquid is prolonged, and the production cost is reduced. The replacement cost is reduced; meanwhile, the filtering mechanism is easy to disassemble and clean, the maintenance work is simplified, and the overall electroplating efficiency is improved.

The utility model provides a kind of beverage machine, comprising: host computer, the host computer is used to generate beverage, and the host computer is equipped with to be cleaned part;Drop device is set to the host computer, and the drop device is used to drop solid cleaning agent to the to be cleaned part;The drop device includes drop main body and channel piece connected setting;Channel piece is formed with drop channel in it, and the drop channel has inlet and outlet, the inlet allows to drop the solid cleaning agent into the drop channel, and the solid cleaning agent in the drop channel can be sequentially dropped into the to be cleaned part via the outlet and the drop main body;Wherein, the drop main body is fixedly connected with the host computer, and the channel piece is respectively detachably connected with the host computer and the drop main body.This application sets detachable channel piece, and it is convenient for user to clean and maintain drop device.

The invention relates to the technical field of three-phase data synchronization, and particularly discloses a wireless-based three-phase data synchronization method in a transformer substation, which comprises the following steps of: establishing an independent synchronous arbitration terminal and a plurality of distributed data acquisition units, broadcasting a synchronous beacon carrying a high-precision main timestamp by the synchronous arbitration terminal, after each data acquisition unit receives the synchronous beacon, a frequency drift model of a local real-time clock relative to a main clock is established, and an accurate drift coefficient is calculated. Based on the drift coefficient, the data acquisition unit adopts a digital differential comprehensive algorithm to perform periodic fine adjustment on a counter heavy load value of the local real-time clock. And meanwhile, the data acquisition unit binds the sampling data with a sampling point position identifier at a synchronous beacon receiving moment, and the data fusion unit performs final sample alignment on a data stream from three phases according to the position identifier, so that dual high-precision synchronization of physical layer frequency synchronization and data layer phase alignment is realized.

The invention belongs to the technical field of under-pressure operation, and discloses an under-pressure operation system which comprises a feeding device, a carrying device and an under-pressure operation machine body. The feeding device comprises a stock bin and a conveying mechanism, the conveying mechanism communicates with the stock bin, the stock bin can rotate relative to the conveying mechanism, and the pipe fittings are contained in the stock bin and can roll to the conveying mechanism under the action of gravity. The carrying device comprises a supporting frame and a grabbing mechanism, the supporting frame is arranged on the downstream of the conveying mechanism, and the grabbing mechanism is rotatably arranged on the supporting frame, can grab the pipe fittings on the conveying mechanism and rotates relative to the supporting frame till the grabbed pipe fittings are parallel to the vertical direction. The under-pressure operation machine body is arranged on the downstream portion of the carrying device and can bear the pipe fittings, parallel to the vertical direction, on the grabbing mechanism and put down or lift up the pipe fittings. According to the under-pressure operation system, the manual operation requirement and the working process of under-pressure operation can be simplified, the operation efficiency is improved, the possibility of personal errors is reduced, and the reliability and the quality of operation are improved.

The utility model relates to camera technical field, concretely is a camera for camera, this camera includes support, high -speed ball machine, WiFi antenna, take photograph member and mounting piece, high -speed ball machine sets up at the bottom of support, and the both ends of support are set up at the side far from high -speed ball machine WiFi antenna, take photograph member sets up at one side of high -speed ball machine, and mounting piece is located at both ends of take photograph member, mounting piece includes mounting frame, limit post, spring, connecting column and limit rod, limit post distributes at both ends of take photograph member, and mounting frame is sleeved at the outside of limit post, and spring is fixed at the inside of mounting frame, and connecting column is fixed at the bottom surface of spring, and limit rod is fixed at the upper surface of connecting column, and the top of limit rod is inserted in limit post, and the bottom of connecting column outside is provided with the gap that has set up in the outside of connecting column, and the utility model has the advantages of simple structure, reasonable in design, functional, can complete the advantage of quick and complete to mounting panel dismounting.

The utility model relates to the technical field of HDPE water drainage pipes, in particular to a connecting structure of an HDPE water drainage pipe, which comprises an HDPE water drainage pipe body and an assembling mechanism, the assembling mechanism comprises a fixing head, an installing head and a positioning mechanism, a fixing box is arranged between one end of the fixing head and the HDPE water drainage pipe body, the other end of the fixing head is provided with a threaded groove, and the positioning mechanism is arranged in the threaded groove. The fixing device comprises a fixing box, a fastening ring groove is formed in the fixing box, an elastic component and an annular plate are arranged on the fastening ring groove, and an adjusting mechanism is arranged between the annular plate and the fixing box. Good connection stability can be kept under the condition of water pressure change or external vibration, and the service life of the drainage system is prolonged.

The application provides a traffic signal lamp intelligent regulation system, and relates to the technical field of traffic regulation.The system comprises a traffic information collection unit and an upper computer software system;by fusing modern frontier technologies such as the Internet of Things, big data and geomagnetic field measurement, and combining scientific theories such as automatic control theory, operations research and artificial intelligence, a traffic signal lamp self-adaptive control system based on period time expansion is constructed, and the green light release time is automatically adjusted according to the real-time arrival condition of the traffic flow at the intersection.

An integrated system for uninterrupted power delivery via an electromagnetically controlled dual-motor three-speed drive includes a first motor, a first planetary gear set, and a first shift group connected in sequence, as well as a second motor, a second planetary gear set, and a second shift group connected in sequence. It also includes an output shaft, with both the first and second shift groups connected to the output shaft to output power. The first motor is connected to the first planetary gear set via a first input shaft, the first planetary gear set is connected to the first shift group via a first intermediate shaft, and the first shift group is connected to the output shaft via a driven gear set. The second motor is connected to the second planetary gear set via a second input shaft, the second planetary gear set is connected to the second shift group via a second intermediate shaft, and the second shift group is also connected to the output shaft via a driven gear set. This invention, through the ingenious combination of planetary gear sets and parallel shafts, achieves a minimization of size while maintaining powerful functionality, providing greater spatial freedom for vehicle design.

The utility model relates to the technical field of wire drawing, and discloses a novel wire drawing device of a wire drawing and bending machine, which comprises a die holder, a lower wire drawing plate is arranged at the top of the die holder, an upper wire drawing plate is connected to the lower wire drawing plate through a hinge, a fixing mechanism is arranged on the side wall of the die holder, and closing mechanisms are arranged on the side walls of the lower wire drawing plate and the upper wire drawing plate. The fixing mechanism comprises a plug pin and a concave hole formed in the lower wire drawing plate, the side wall of the die base is rotationally connected with a rotating plate, the side wall of the plug pin is slidably connected into the rotating plate, the side wall of the plug pin is slidably connected into the concave hole, the side wall of the plug pin is fixedly connected with a fixing plate, and the side wall of the plug pin is sleeved with a first spring. According to the utility model, the bolt is moved by pulling the pull ring, so that a user can disassemble and assemble the wire drawing plate without the help of other tools, the replacement difficulty is reduced, and the efficiency of replacing the wire drawing plate is further improved.

The utility model relates to the technical field of numerical control machine tools, and discloses a wiring structure of a machine tool. Comprising a first cabling box fixedly arranged on a lathe bed, a Y-axis drag chain connected with the output end of the first cabling box, a second cabling box arranged on a Y-axis sliding table, an X-axis drag chain connected with the output end of the second cabling box and a third cabling box arranged on an X-axis sliding table, and the input end of the second cabling box is connected with the Y-axis drag chain. The input end of the third wiring box is connected with the X-axis drag chain. According to the wiring structure provided by the utility model, the positions where the strong electric wire and the weak electric wire just start to be input into the machine tool are optimally designed, and the separation bent plate is arranged in the first wiring box to form an independent wiring channel, so that the strong electric wire and the weak electric wire can be effectively wired separately; and the influence of an electromagnetic field generated by the strong wire on signal transmission of the weak wire is reduced, so that the quality of signal transmission and the stability of the system are improved.

This utility model discloses a light-guided speaker with a light guide assembly, including a light-guided speaker body and a light guide assembly. A mounting plate is fixedly mounted on the outer side of the light-guided speaker body, and a fixing plate is fixedly mounted on the outer side of the light guide assembly. Multiple fixing mechanisms are provided on the mounting plate and the fixing plate. Each fixing mechanism includes a plug rod and a fixing sleeve. The plug rod is inserted into the mounting plate and the fixing plate, and the fixing sleeve is inserted into the top of the plug rod. A slot is provided on the outer side of the plug rod, and a locking block is provided on the inner side of the fixing sleeve. Multiple sets of slots and locking blocks are provided. Multiple sets of inclined grooves are provided on the inner side of the fixing sleeve. An inclined block is fixedly mounted on the outer side of each set of locking blocks, and the inclined blocks slide within the various sets of inclined grooves. By providing multiple fixing mechanisms, the light guide assembly can be quickly and conveniently connected to the light-guided speaker body. The user only needs to align the mounting plate and the fixing plate, and the installation of the light guide assembly can be easily completed through the cooperation of the plug rod and the fixing sleeve.

The utility model discloses a portable negative pressure machine for ligation banding operation, including the casing and setting in the negative pressure pump of casing inside, liquid storage bottle and control mainboard, negative pressure pump and control mainboard electricity are connected, the lateral wall on casing is provided with the air inlet, the liquid storage bottle is connected with two suction hoses, one of which is communicated with the negative pressure pump, and the other suction hose is communicated with the air inlet. The utility model discloses the volume of negative pressure machine is small and is convenient for moving and carrying, and can provide enough negative pressure pressure, and the liquid storage bottle is arranged in the negative pressure machine, prevents tissue fluid, pus or blood from flowing into the negative pressure pump from the negative pressure channel along the barrel, causes the equipment damage.

The application discloses a high-precision low-delay on-chip ripple compensation circuit and belongs to the technical field of integrated circuit design.The on-chip ripple compensation circuit comprises PMOS tubes P1-P9, NMOS tubes N1-N5, resistors R1-R6 and capacitors C1-C3.In the on-chip ripple compensation circuit, one end of the resistor R1 is connected to a node SW, the other end of the resistor R1 is connected to one end of the resistor R2 and R3, and the connection position is a node vs10;the other end of the resistor R2 is connected to the ground VSS, the other end of the resistor R3 is connected to one end of the capacitor C1 and the gate of the PMOS tube P9, and the connection position is a node vlpf;the other end of the capacitor C1 is connected to the ground VSS, the drain of the PMOS tube P9 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the ground VSS.The link path of the on-chip ripple compensation circuit has only four levels, and the phase delay is shortened;two-stage filtering is performed in the last stage, the alternating current is extracted in the output stage, flows into the resistor and is converted into voltage, all the MOS tubes can work in the saturation region, zero DC error is achieved, and the precision of the ripple compensation is improved.

This invention provides a frequency-to-analog safety barrier, comprising a voltage conversion circuit, a transformer coil drive circuit, a transformer, a first AC voltage rectification and filtering circuit, a frequency signal processing circuit, a NAMUR signal processing circuit, an NPNPNP signal processing circuit, a frequency processing circuit, an MCU control circuit, a TTL output interface, an isolation chip, a square wave processing circuit, a filtering circuit, a DC output circuit, and an alarm relay. The voltage conversion circuit is connected to the transformer via the transformer coil drive circuit. The transformer supplies power to the hazardous and safe zones via the first AC voltage rectification and filtering circuit. Multiple intrinsically safe terminals in the hazardous zone are connected to the frequency processing circuit via three signal processing circuits. The frequency processing circuit outputs to the MCU control circuit. The MCU output sequentially passes through the TTL interface, the isolation chip, the square wave processing circuit, and the filtering circuit to the DC output circuit. This invention achieves frequency signal to analog quantity conversion and safety isolation, increasing system stability.

The invention provides a test case engineering management system and method based on a layered structure, and belongs to the technical field of computers. The system comprises a hierarchical structure management module which is used for constructing an industry-field-project-module four-level hierarchical system and realizing structured organization and inheritance multiplexing of test cases; the basic library construction module is used for automatically extracting generality test cases through matching degree analysis and a clustering algorithm and incorporating the generality test cases into versioning management; the closed-loop iteration module is used for continuously optimizing the test case by adopting a reinforcement learning algorithm according to the test execution feedback data; the use case expansion module is used for integrating specific demand use cases in a plug-in mode and executing compatibility check; and the unified management platform is used for integrating the modules and providing full-life-cycle management service. According to the method, the reuse rate and the maintenance efficiency of the test cases are remarkably improved, engineering, automatic and intelligent management of test assets is achieved, and the method adapts to software development requirements of rapid iteration.

This utility model discloses a slotted photoelectric sensor, including a slotted photoelectric sensor housing. A wiring slot is provided at the rear end of the bottom of the slotted photoelectric sensor housing. A wiring piece is provided inside the wiring slot, and a cable is connected to the wiring piece. A sealing cover is provided below the wiring slot, and a wire-locking port is provided in the middle of the sealing cover. A shell cover is provided at the bottom of the slotted photoelectric sensor housing. A slot is provided on the side of the shell cover that connects to the wiring slot. An adjustable mounting piece is provided inside the slot. A fixing screw hole is provided at the outer end of the adjustable mounting piece. An infrared sensor lamp is provided inside the slotted photoelectric sensor housing at the slot position. In this utility model, the adjustable mounting piece inside the slot allows for adjustment by rotation, enabling the slotted photoelectric sensor to be installed vertically or horizontally, increasing installation flexibility and meeting more installation needs.

The utility model relates to the technical field of drying boxes, in particular to a pet drying box which comprises a drying box body, a sealing door rotationally arranged at the front end of the drying box body and a drying mechanism arranged at the tail end of the drying box body, the drying box body comprises an upper box body and a lower box body, an observation hole is formed in the upper end of the upper box body, and the upper end of the lower box body is connected with the sealing door. A supporting filter plate is arranged on the lower box body, a drainage hole is formed in the lower end of the lower box body in a penetrating mode, a sunken collecting groove is formed in the side, close to the sealing door, of the drainage hole, a limiting groove is formed in the outer side of the sunken collecting groove, a discharging plate is arranged at the lower end of the sunken collecting groove in a sliding mode, and a water retaining cover is inserted into the limiting groove. Efficient drying is achieved through hot air generated by the drying mechanism, and pet hair is rapidly dried; the observation hole of the upper box body is convenient for checking the state of the pet at any time to ensure safety and comfort; the supporting filter plate can be taken out and is matched with the sunken collecting tank and the discharging plate, hair and water stains are easy to clean, and the interior of the box is kept clean.

This utility model discloses a special tooling for RTP pipe joints, relating to the field of pipeline technology. It includes a frame, with a joint body fixing plate at one end; a hydraulic cylinder is fixedly mounted on the frame, and a clamping block seat is fixedly connected to the output end of the cylinder. An RTP pipe clamping block is mounted on the clamping block seat, used to clamp the RTP pipe, and is coaxially arranged with the joint body fixing plate; a pressure block support mechanism and a tensioning sleeve support mechanism are also slidably mounted on the frame; the pressure block support mechanism and the tensioning sleeve support mechanism are located between the joint body fixing plate and the RTP pipe clamping block. This utility model designs a special tooling for RTP pipe joints, facilitating the installation of the joint and RTP pipe, simplifying the work process, and improving construction efficiency.

The utility model discloses a water cooling device for efficiently cooling an LED of a letterpress printing machine, which relates to the technical field of LED cooling of printing machines and comprises a shell, a circuit board fixedly connected to the lower side of the shell, lamp beads fixedly connected to the lower surface of the circuit board, and a cooling component mounted in the shell and comprising a cooling fin I fixedly mounted in the shell, a main cooling pipeline is arranged in the shell in a penetrating mode, a connecting shell is detachably connected to the shell, second cooling fins are fixedly connected to the interior of the connecting shell, the second cooling fins abut against the first cooling fins, an expansion cooling pipeline is arranged in the second cooling fins in a penetrating mode, and a cooling fan is fixedly connected to the top of the connecting shell; the outer wall of the cooling fan is covered with a dust cover, a filter plate is slidably connected to the position, close to the lower side of the cooling fan, in the connecting shell, and air outlets are distributed in the side wall, located below the filter plate, of the connecting shell. According to the utility model, a double heat dissipation guarantee mechanism with water cooling as a main part and air cooling as an auxiliary part is formed, and heat generated by the lamp beads can be quickly and continuously led out.

The utility model provides a coal tar hydrogenation liquid sulfur injection device, which belongs to the technical field of liquid supply, and comprises an output pipe connected with a storage tank, the end part of the output pipe is connected with a plurality of water supply units, each water supply unit is connected with a feed pipe of a stirring barrel, and the stirring barrel is used for mixing liquid sulfur and coal tar; the water supply unit comprises a water supply pipe connected with the output pipe, the end of the water supply pipe is connected with the water inlet pipe, and the water supply pipe is sequentially provided with a switch valve used for water flow on-off, a pressure stabilizing valve used for stabilizing water pressure, a pressure regulating valve used for regulating pipeline water flow and a pressure gauge used for detecting the water pressure. According to the liquid sulfur injection device, water is stably and continuously supplied to the mixing drum through the water supply units, and the other water supply unit can be used for working when one water supply unit cannot work normally, so that the liquid sulfur injection work can be normally operated.