33results about How to "Improve opening efficiency" patented technology

The invention relates to a power grid phase sequence determination method of a power converter, a controller and a system. The method of one aspect is used in a first controller, and comprises the following steps: when all single-phase power converters are in a grid-connected power generation state, controlling other phase circuits in a multi-phase power grid system to be disconnected from corresponding single-phase power converters, and sending a first state query request to each single-phase power converter, and according to received first feedback information corresponding to the first state query request, determining a single-phase power converter of which the power grid phase sequence is a target phase circuit, the target phase circuit corresponding to any phase circuit in the multi-phase power grid system, and the other phase circuits corresponding to phase circuits except the target phase circuit in the multi-phase power grid system. By adopting the method, the accuracy of power grid phase sequence determination can be improved.

The utility model relates to the technical field of woven bags, and discloses a woven bag opening device which comprises a containing table, a rotating groove is formed in the containing table, an opening assembly is arranged in the rotating groove, the opening assembly comprises a sliding block, and a clamping assembly is fixedly installed at the top of the sliding block. The opening assembly is connected with the clamping assemblies through sliding blocks, woven bags are clamped through fixing clamps on the clamping assemblies, the multiple clamping assemblies can move at the same time through rotation of the opening assembly, then the woven bags are opened, the adjusting complexity can be effectively reduced, and the adjusting efficiency is improved. And higher opening efficiency can be achieved for different woven bags.

The utility model relates to the technical field of textile machinery, and discloses a vibration cotton feeder for processing automobile sound-absorbing cotton, which comprises a bottom plate, a shell plate fixedly arranged on the top surface of the bottom plate, an upper fixed bin fixedly arranged on the top surface of the shell plate, a lower opening bin arranged below the upper fixed bin, and an opening mechanism and a driving mechanism arranged above the upper fixed bin, the opening mechanism comprises a cleaning part and an opening part, the driving mechanism comprises a driving part and a vibration part, the driving part is located above the vibration part, the opening roller conducts primary opening on sound-absorbing cotton raw materials, the outer partition plate prevents the sound-absorbing cotton raw materials from flying around in the opening process, and the scraping device cleans the sound-absorbing cotton raw materials adhering to the inner wall of the outer partition plate. The sound-absorbing cotton is fully utilized, the opening efficiency of the opening roller is improved, when the connecting plate moves, the lower opening bin is driven to vibrate, sound-absorbing cotton raw materials falling into the lower opening bin are subjected to secondary opening, opening of the device is more sufficient, and the opening strength of the sound-absorbing cotton is improved.

The utility model relates to the technical field of smoke exhaust skylight and disclose a streamline smoke exhaust skylight convenient to open fast, including window top subassembly, window top subassembly is equipped with sash subassembly, window top subassembly includes streamline window top board, streamline design can reduce the wind resistance, promotes the aerodynamic performance of whole structure, and the assembly groove is set up between the center position of the upper and lower two side walls of streamline window top board for installing sash subassembly. The utility model discloses through setting up speed reducer, synchronous controller, synchronous controller controls the operation of speed reducer, drives connecting rod, connecting sleeve and other components, can drive sash frame to open fast, realizes the smoke exhaust function in the emergency such as fire rapidly, improves the opening efficiency.

The utility model discloses a perforating device for constructional engineering, which belongs to the technical field of perforating devices and comprises a placement bottom plate, an inverted U-shaped upper cover is connected to the upper end of the placement bottom plate, a sliding plate capable of sliding up and down is mounted in the inverted U-shaped upper cover, and a second driving motor is mounted at the upper end of the sliding plate. The rotating end of the second driving motor penetrates through the sliding plate and is connected with a drill bit, when the arranged sliding plate is pressed downwards, the sleeve and the mounting plates on the two sides make contact with a plate to tightly press the plate, the sliding rods on the two sides are pressed downwards to slide upwards along the through holes and compress the first springs, and the drill bit makes contact with the plate and drills the plate; the air inlet end of an air suction pump is connected with an air hole in one side, and the air suction pump sucks air, so that external air enters the sleeve through an air hole in the other side and enters a collecting box through an air inlet pipe to be filtered; cleaning can be completed by cleaning the filter element in the collecting box, so that cleaning is more convenient.

The opener for non-woven fabric production comprises a feeding table, a mounting frame is fixedly connected to the position, close to the edge, of the top end of the feeding table, a mounting plate is connected to the top end of the mounting frame in a sliding mode, a square through hole is formed in one side of the mounting plate in a penetrating mode, and an adjusting block is connected to the interior of the square through hole in a sliding mode. An air cylinder is fixedly connected to one side of the mounting plate, the telescopic end of the air cylinder is fixedly connected with the top end of the adjusting block, and two connecting rods are rotationally connected to one side of the adjusting block. The adjusting block is pushed by the air cylinder to slide in the square through hole, so that the connecting rod rotates and pushes the two shredding plates to be separated, the two shredding plates drive the shredding head to be separated in the separation process, primary shredding and separation of non-woven fabric raw materials are achieved, the compact state of the raw materials can be achieved, the next opening operation is facilitated, the structure is simple, and operation is convenient. And the opening efficiency is effectively improved.

The utility model provides an electric heating scutching device of a circular knitting machine, which structurally comprises a rotary working frame, a tensioning mechanism and a scutching mechanism, the tensioning mechanism and the scutching mechanism are arranged on the working frame, the tensioning mechanism comprises a first guide cloth frame and a tension roller below the first guide cloth frame, the first guide cloth frame is erected on the working frame through a connecting seat, and the first guide cloth frame is connected with the scutching mechanism. The upper end of woven gray cloth is arranged on the first guide rack in a surrounding mode to form transverse tension, and the lower end of the gray cloth is arranged on the tension roller in a winding mode to form longitudinal tension and downward moving power. The scutching mechanism comprises a mounting seat and a U-shaped electric heating wire which are fixedly arranged on the working rack, the upper end of the U-shaped electric heating wire is fixed on the mounting seat, and the lower part of the U-shaped electric heating wire is suspended on the guide inclined surface of the connecting seat and is in contact with the gray cloth to split the gray cloth. The high-temperature electric heating wire is adopted to replace traditional mechanical scutching equipment such as a circular blade, and the scutching device has the advantages that the gray cloth scutching edge is neat, scutching efficiency is high, the scutching mechanism is long in service life, and production cost is greatly reduced.

The invention discloses a device opening method, a device and a storage medium. The method comprises the following steps: sending a device discovery request; a response of the to-be-managed device to the device discovery request is received, and the response comprises a link address of the to-be-managed device; and performing unicast communication with the to-be-managed device by using the link address to realize a preset opening operation of the to-be-managed device, the preset opening operation including at least one of device initialization and network configuration. In this way, the opening efficiency of the equipment can be improved.

The utility model provides a kind of flat paper tube automatic sleeve machine, belong to sleeve machine technical field.It includes frame, the left and right sides of the frame are respectively provided with flat paper tube feeding mechanism and sleeve mechanism, the flat paper tube feeding mechanism and sleeve mechanism between still be equipped with bag taking mechanism, the bag taking mechanism is set in frame top.Bag taking transfer cylinder can move the upper translation seat to the top of flat paper tube feeding mechanism along horizontal slide rail, No. one lifting assembly drives double -deck material taking seat to descend to and flat paper tube is attached, utilize suction cup subassembly can adsorb flat paper tube, open barrel subassembly can open flat paper tube, and after the paper tube that is partly open moves to and passes between flat paper tube feeding mechanism and sleeve mechanism, rotating translation subassembly can first rotate sleeve seat to sleeve subassembly towards bag taking mechanism, then sleeve subassembly is translated to insert into paper tube, finally utilize sleeve subassembly to complete paper tube to open, can effectively improve the opening efficiency of paper tube.

The utility model discloses a small space 90 degree slewing boom for the opening of horizontal equipment head, relates to horizontal equipment head opening technical field, including the mounting seat fixed connection in the circumference outer wall of jar body, one side of mounting seat is provided the connecting column, one end of connecting column is fixedly connected with the cross column, one end fixedly connected with the limit disc of cross column, the outer wall fixedly connected with screw post of one side of limit disc, the lug center fixedly connected with the screw post from the outer wall of head body one side passes, the circumference outer wall screw connection of screw post has the nut. The utility model has realized the synchronous operation of head body horizontal movement and 90 degree rotation opening operation, does not need additional operation step, and the efficiency of head opening is improved greatly, and the whole process only needs small space to complete, effectively solve the inconvenient operation problem of traditional equipment in narrow space, especially suitable for the working scene of space limited, and the applicability of equipment is enhanced.

The invention discloses a block chain-based scientific research record opening method and system, and relates to the technical field of data processing, and the method comprises the steps: building an alliance network; setting an experiment permission and a sharing range; uploading the experiment record to a laboratory record book, and synchronously recording an operation record; performing hash encryption on the experimental record book with the recheck signature; signature verification and integrity and consistency verification of the opened scientific research records are carried out by using the public key of the scientific research record owner; when the verification result is a passing result, real contributor signature authorization is established; and generating a verifiable voucher, and performing open sharing. The technical problems that in the prior art, legality of data authorization opening is difficult to guarantee, authenticity of a data author cannot be guaranteed, and efficiency of opening authorization is insufficient are solved, right confirmation and authorization of scientific research records are achieved through the distributed identity identification and block chain technology, safety and effectiveness of scientific research record opening are guaranteed, and the scientific research record opening efficiency is improved. And meanwhile, the authenticity and legality of the data are ensured.

The utility model discloses a wire splitting device for cable harness production, and relates to the technical field of wire splitting devices. The cutting device comprises a bottom table, a fastening screw and a cutting assembly, fixing seats are fixedly connected to the two sides of the upper surface of the bottom table, and the fastening screw is arranged on one side of the middle of the bottom table and is in threaded fit with the bottom table. According to the utility model, the fixing seat, the wire fixing hole, the matching spring, the matching plate, the fastening screw rod, the matching seat and the pressing plate are arranged, the matching seat is moved downwards along the fastening screw rod, a cable is clamped and fixed by using the wire fixing hole, the fixing of the cable is further enhanced by using the pressing plate and the matching plate, and then the fastening screw rod is rotated to enable the thread of the fastening screw rod to move downwards. The matching seat and the pressing plate are fixed, so that the cable is prevented from slipping when the cable opening operation is carried out; through the arrangement of the cutting assembly, the starting motor and the cooperation of all parts, the blades in the two sets of mounting bases are driven to perform cable opening operation, manual operation is reduced, and the cable opening efficiency is improved.

The movable smoke-blocking vertical wall structure comprises a box body, one end of the box body is provided with an opening, the opening is covered with an end cover, the end cover is connected with the opening of the box body through a connecting mechanism, and a limiting plate corresponding to a gravity base is fixedly arranged on the side wall of the box body; and connecting ports corresponding to the connecting blocks are formed in the side wall of the box body. The problems that the clear height and the attractiveness of a room are affected by a fixed smoke-blocking vertical wall adopted by a pitched roof are solved, the movable smoke-blocking vertical wall is adopted and installed on a pitched roof structural beam or a roof panel, the movable smoke-blocking vertical wall is in a folded state at ordinary times, the using height of the room is effectively increased, and the room is attractive and harmonious; the smoke sensing controller can control a control switch in the box body to be turned on, a first spring is electrified and contracted, so that a limiting block is retracted, limitation of the gravity base can be relieved, the inorganic fiber fireproof cloth is pulled out of the gravity base to conduct smoke blocking and separating operation, and the spreading speed of smoke is reduced.

The utility model discloses an efficient screw driving clamp, which belongs to the technical field of clamps and comprises a processing table and a punching device, the top end of the processing table is fixedly connected with an n-shaped support frame, the rear side wall of the n-shaped support frame is fixedly connected with a vertical plate, and the vertical plate is connected with the punching device through a lifting transmission structure. A sliding groove with the longitudinal vertical section of an I-shaped structure is formed in the top end of the n-shaped supporting frame in a penetrating mode, two symmetrically-arranged sliding bases are slidably connected into the sliding groove, and the longitudinal vertical section of each sliding base is of an I-shaped structure. When the screw driving clamp is used, the distance between the two clamping seats is adjusted according to the outer diameter of a workpiece, the distance between the V-shaped clamping supporting openings formed in the two clamping seats can be adjusted by loosening the two hand screws and matching with the screw holes, and after adjustment is completed, the two hand screws are screwed into the screw holes, so that the screw driving clamp is convenient to use. The corresponding hand screws can be locked into the screw holes, and a workpiece needing to be drilled with the screw holes is placed between the two V-shaped clamping supporting openings.

The invention provides a compact type rapid opening and closing protection device based on a flat light window, and belongs to the technical field of photoelectric equipment, the compact type rapid opening and closing protection device specifically comprises a protection baffle and a driving mechanism, the driving mechanism is installed on an installation shell of the flat light window, the protection baffle is used for covering the flat light window, and a connecting shaft is arranged on the first side edge of the protection baffle; the connecting shaft is connected with an output shaft of the driving mechanism, the driving mechanism drives the protection baffle to rotate around the connecting shaft so that the flat light window can be close to or away from the flat light window, a permanent magnet is arranged on the protection baffle, a magnetic material block is arranged on the installation shell, and when the compact type rapid opening and closing protection device is powered off, the permanent magnet adsorbs the magnetic material block. Therefore, the protection baffle plate and the mounting shell are stably propped against each other; when the compact rapid opening and closing protection device is electrified, the electromagnetic assembly applies acting force away from the outer surface of the mounting shell to the magnetic material block, and the attraction force of the permanent magnet and the magnetic material block is reduced. The flat light window can be effectively protected, and quick opening and closing of the protection baffle are guaranteed.

The invention relates to a power grid phase sequence determination method, device, controller and system for a power converter. The method comprises the following steps: when all single-phase power converters are in a grid-connected state, sending a first instruction to a target single-phase power converter; acquiring alternating current bus messages respectively corresponding to each power grid phase sequence on the alternating current bus through an electric quantity sensor arranged on the alternating current bus corresponding to each power grid phase sequence; and determining the power grid phase sequence corresponding to the target single-phase power converter based on the AC bus message corresponding to each power grid phase sequence. By adopting the method, the grid-connected opening efficiency of the single-phase power converter can be improved.

The utility model discloses a kind of foldable half-opening type scaffold protective net, including first mesh and second mesh, first mesh and second mesh are connected by several hinges, first mesh and second mesh can be 180 degrees folded, second mesh includes upper mesh and lower mesh, upper mesh and lower mesh are connected by several intermediate hinges, upper mesh and lower mesh can be 180 degrees folded, the bottom of lower mesh is provided with locking mechanism, for opening or closing lower mesh, the device utilizes first mesh and second mesh 180 degrees folding, user can be according to actual need in manufacturer's predetermined splicing after scaffold protective net, and fold up and transport, greatly improve transport efficiency, and after being transported to construction site, it is not necessary to splicing on site, greatly improve the on-site installation efficiency of scaffold protective net, utilize upper mesh and lower mesh 180 degrees folding, can quickly escape by opening lower mesh, greatly improve the use safety of this scaffold protective net.

This disclosure relates to a method for improving the initiation efficiency of perforation clusters in a horizontal well in hot dry rock. The method includes: S1, pulse-injecting a first fracturing fluid into a single perforation section of the hot dry rock horizontal well at a first flow rate; S2, pulse-injecting a second fracturing fluid into the same perforation section at a second flow rate; wherein the flow rate of the first flow rate is less than the flow rate of the second flow rate, and the pulse frequency of the first flow rate is less than the pulse frequency of the second flow rate; S3, injecting a temporary plugging and diversion fluid into the formation; S4, pulse-injecting a third fracturing fluid into the same perforation section of the hot dry rock horizontal well at a third flow rate; S5, pulse-injecting a fourth fracturing fluid into the same perforation section of the hot dry rock horizontal well at a fourth flow rate; wherein the flow rate of the third flow rate is less than the flow rate of the fourth flow rate, and the pulse frequency of the third flow rate is less than the pulse frequency of the fourth flow rate; S6, optionally, repeating steps S1 to S5. The method of this disclosure can improve the fracturing efficiency of perforation clusters in horizontal sections and increase the stimulation volume of hot dry rock geothermal reservoirs.

An online calibrator for an air-spinning cotton cleaner is used to judge the detection quality of the cotton cleaner. A forward drive motor and a reverse drive motor are fixed at both ends of the shell, an upper tension wheel is provided on the side of the forward drive motor, and a lower tension wheel is provided on the side of the reverse drive motor. The battery is installed in the shell, and a power switch is provided on the outside of the shell; one end of the forward drive motor and the reverse drive motor is connected to the negative pole of the power supply, and the other end of the forward drive motor and the reverse drive motor is connected to one end of the speed regulating resistor, and the other end of the speed regulating resistor is connected to one end of the power switch, and the other end of the power switch is connected to the positive pole of the power supply. The present invention uses real defective yarn as a simulated air-spinning defective yarn, and can judge the detection quality of the cotton cleaner of each spindle of the air-spinning equipment, so that it can effectively distinguish defects of different varieties, with high simulation degree and accurate detection, and can timely reflect the working status of the cotton cleaner, meet the parameter correction required by the spinning quality process, and improve product quality and equipment start-up efficiency.

The utility model discloses a Z-shaped bottle opener, which relates to the technical field of medical tools and comprises a handle plate, a connecting inclined plate is obliquely mounted at one end of the handle plate, a fixing plate is mounted at one end, far away from the handle plate, of the connecting inclined plate, and the handle plate, the connecting inclined plate and the fixing plate form a Z shape. A pull ring crow plate is installed at the end, away from the connecting inclined plate, of the fixing plate, and a buckle sleeve frame is installed on the side, close to the connecting inclined plate, of the lower end of the handle plate. According to the lever principle, when a bottle cap with a buckle is opened, the buckle sleeve frame is arranged on the buckle in a sleeved mode, then the handle plate is moved upwards, the buckle sleeve frame opens the buckle, and therefore the bottle cap with the buckle is opened. When a bottle cap with a pull ring is opened, the pull ring crow plate is inserted into the pull ring, then the handle plate is moved downwards, the pull ring crow plate opens the pull ring, the efficiency of opening the bottle cap is high, medical workers are prevented from opening the bottle cap with hands, and the hands of workers are protected.

The utility model provides a cashmere opening device, and relates to the field of opening devices. Comprising an opener body, a feeding conveying belt is arranged on one side of the opener body, and an automatic feeding mechanism is arranged on the side, close to the feeding conveying belt, of the opener body; the automatic feeding mechanism comprises a C-shaped cover fixedly connected to the opener body, a uniform feeding assembly fixedly connected to the C-shaped cover and a material box connected to one side of the uniform feeding assembly, the C-shaped cover is arranged over the feeding conveying belt, and the uniform feeding assembly comprises a hopper and a top cover hinged to the top of the hopper; and a discharging opening is formed in the bottom of the hopper, the discharging opening downwards penetrates through the [-shaped cover and is fixedly connected with the [-shaped cover, a rotating shaft is rotationally connected to the inner side of the discharging opening, and a material stirring plate is fixedly connected to the side wall of the rotating shaft. According to the utility model, the problems of high working intensity and low opening efficiency caused by manual feeding, uniform spreading and discharging when the existing opener is used are solved.

The utility model discloses an environmental protection brown pad processing is with the opener that can remove metal impurity relates to environmental protection brown pad processing device design technical field, including the opener main part, dust removal crushing unit and metal adsorption unit, is set up with one limit slot on the opener main part, is provided with the belt conveyor in the limit slot, is provided with metal adsorption unit on the opener main part upside, and dust removal crushing unit contains crushing shell, feeding hole, filter screen, guide plate no.

The utility model relates to the technical field of building measurement, in particular to a measuring and positioning device for building, which can simultaneously measure positions where a plurality of holes are formed so as to improve the hole forming efficiency, and comprises a first scale and a second scale which is arranged in a crossed manner, a first sliding assembly in sliding connection with the first scale is arranged in the middle of the second scale, a plurality of second sliding assemblies are in sliding connection with the first scale and the second scale, positioning blocks are arranged on the second sliding assemblies, positioning holes are formed in the positioning blocks, and fixing assemblies are arranged on the first sliding assembly and the second sliding assemblies. The fixing assembly is a jackscrew connected through threads, a rotating block used for rotating the jackscrew is arranged on the jackscrew, the fixing assembly is an extrusion block connected in a rotating mode, through grooves matched with the extrusion block are formed in the first sliding assembly and the second sliding assembly, and a wrench used for pulling the extrusion block is arranged on the extrusion block. And supporting blocks are detachably mounted at the rear parts of the first ruler and the second ruler.

The weaving method comprises the steps that warp yarn is divided into a first warp yarn set and a second warp yarn set, the first warp yarn set is used for weaving a lattice body weave, and the second warp yarn set is used for weaving a warp-direction lattice edge weave; the warp yarns in the second warp yarn group are divided into a left warp yarn group and a right warp yarn group, and the warp yarns in the same first warp yarn group and the warp yarns in the right warp yarn group and the left warp yarn group which are located on the left side and the right side of the first warp yarn group respectively penetrate into the same reed seam of the reed; the first weft yarn group and the first warp yarn group are interwoven in a plain weave mode, all the warp yarns in the second warp yarn group are interwoven with the same weft yarn at the same weave point, and all the weft yarns in the second weft yarn group are interwoven with the same warp yarn at the same weave point; meanwhile, the invention discloses a woven fabric. According to the invention, the problem of reed marks generated by reed dents on the cloth surface can be effectively eliminated, the weaving and after-finishing process of the fabric is simplified, the tearing strength of the fabric is enhanced, and the efficiency is improved.

The utility model discloses a manual splitting device for a personal dose box. The manual splitting device comprises a mounting base, a lifting shaft, a rocker and a supporting assembly. A mounting frame is fixedly assembled on the mounting base, and the lifting shaft is slidably mounted in the mounting frame. The rocker is installed on the installation frame and is in linkage with the lifting shaft. The supporting assembly is composed of a supporting cushion table, a guide rod and a supporting spring. The supporting pad table is fixed on the mounting base and is fixedly connected with the guide rod; the impact head, the clamping groove and the supporting frame are sequentially arranged from top to bottom. The supporting frame is fixedly installed on the supporting pad table, the corner positions of the clamping grooves are slidably connected with the guide rods in an inserted mode, and the two ends of the supporting springs abut against the upper surface of the supporting pad table and the lower surfaces of the clamping grooves respectively. The impact head is fixedly installed at the bottom of the lifting shaft. Through the structural design, the opening efficiency of the personal dosage box is effectively improved, and the operation is more time-saving and labor-saving.

The utility model relates to a technical field of pulverizer, concretely is a kind of pulverizer knife cavity convenient to disassemble, including knife cavity component group, the knife cavity component group includes lower knife cavity and upper knife cavity, the lower knife cavity and upper knife cavity are rotatably connected by swivel fulcrum;Driving component group, the driving component group is used to control upper knife cavity rotation angle, the driving component group includes hydraulic rod piece, upper end head piece and lower end head piece.The utility model compared with the tedious operation of traditional bolt disassembly in upper and lower knife cavity in knife cavity, hydraulic control has realized the labor-saving, quick opening and closing of upper and lower knife cavity, greatly improve the efficiency of knife cavity opening, solve the maintenance space limited problem caused by fixed connection in prior art.

The utility model belongs to the technical field of security and protection equipment, and relates to a corridor fire hydrant box. The fire hydrant box comprises a box body, a box door and a door lock assembly, the box door is hinged to the front opening of the box body; the door lock assembly comprises a lock cylinder and a lock rod which are located in the containing cavity of the box body, a tension spring is connected to the inner wall of the front end of the lock cylinder, the other end of the tension spring is connected with a movable disc, a through groove and a clamping groove are formed in the side wall of the lock cylinder, and a clamping block penetrating through the clamping groove is arranged on the movable disc. A transmission rod penetrating through the through groove to be connected to the movable disc is arranged on the side wall of the rear portion of the lock rod. A magnetic lock head is arranged at the front end of the lock rod, and a magnetic lock plate is arranged on the box door. When the box door is closed, the magnetic lock head and the magnetic lock plate are attracted, and the clamping block is pressed on the wall of the clamping groove under the action of the tension spring; when the box door is pushed, the lock rod moves backwards under the action of thrust, and the magnetic lock head and the magnetic lock plate are separated to open the box door. According to the utility model, the door of the fire hydrant cabinet can be opened easily, the opening efficiency of the door is improved, and the problem that the opening of the door of the existing fire hydrant cabinet is affected due to the fact that parts in the buckle are easy to oxidize is solved.

The utility model discloses an acceptance and classification device for glutinous sorghum. The acceptance and classification device at least comprises but not limited to a lifting mechanism, a cooking mechanism and a containing mechanism, the lifting mechanism is arranged in the cooking mechanism in a sleeving manner, the containing mechanism is arranged at the lifting end of the lifting mechanism, and the containing mechanism can be immersed into the cooking mechanism under the driving of the lifting mechanism; according to the scheme, red beams submitted by different suppliers can be synchronously compared, and the influence of different cooking time or cooking sequence on selection and judgment is avoided; by means of the device, the supplied materials provided by a plurality of suppliers can be cooked and synchronously judged at a time, and the selection efficiency is greatly improved.

The utility model discloses a scissors type back door mechanism for a dumper, which relates to the technical field of scissors type back doors for the dumper and comprises a hopper, a rotating shaft is rotatably connected to one side of the inner wall of the hopper, and two third connecting blocks are fixedly connected to the outer side of the rotating shaft and two corresponding ends. Two third connecting blocks are arranged in the car hopper, the tops of the two third connecting blocks are fixedly connected with a rear door main body, driving mechanisms are arranged in the car hopper and close to the two third connecting blocks, and an attaching mechanism is arranged on one side of the inner wall of the car hopper. Through mutual cooperation of a first connecting block, a second connecting block, a third connecting block, a rotating shaft, a first gear, a second gear and a first motor during use, a worker does not need to manually open the rear door main body, the problem that a common dumper is strenuous to open due to the fact that the rear door main body is heavy is solved, the opening efficiency is effectively improved, and the safety of the dumper is improved. And the waste of time can be avoided.