56results about How to "Easy to return" patented technology

The invention discloses a deep tunnel surrounding rock mechanical parameter inversion method based on a three-dimensional brittle failure zone contour and sparrow optimization algorithm-information vector machine (SSA-IVM) combined optimization algorithm. The engineering technical problem that due to the fact that excavation instantaneous displacement is difficult to monitor, deep tunnel surrounding rock mechanical parameters are difficult to reasonably obtain through displacement back analysis is solved. The method comprises the following steps: firstly, constructing a tunnel FLAC3D numerical simulation model with the same ground stress condition at the occurrence position of a three-dimensional brittle failure zone; secondly, taking an absolute error between the total number of computational grid units in the actually measured brittle failure zone and the total number of computational grid units entering a plastic state in the range of the actually measured brittle failure zone after calculation of the FLAC3D numerical model as an optimization objective function; and then, by taking the tunnel surrounding rock mechanical parameters as optimization variables and taking a target function reaching a global minimum value as a target, performing global optimization by combining a tunnel FLAC3D numerical model and adopting an SSA-IVM joint optimization algorithm, thereby obtaining reasonable tunnel surrounding rock mechanical parameters.

The invention discloses continuous blood purification equipment, and belongs to the technical field of medical equipment, the continuous blood purification equipment comprises a blood purification assembly, the blood purification assembly comprises a perfusion device, the upper end and the lower end of the perfusion device are fixedly connected with hard insertion ports, a flexible infusion tube is inserted into the hard insertion port in the lower side, and a sealing monitoring assembly is fixedly connected to the flexible infusion tube; the left side wall and the right side wall of the sealing monitoring assembly are provided with two clamping torsion guiding assemblies, the sealing monitoring assembly is communicated with an acousto-optic reminding assembly, and when the flexible infusion tube is separated from the hard inserting opening, the clamping torsion guiding assemblies can be used for automatically sealing the flexible infusion tube; meanwhile, the communicating catheter is opened in cooperation with the clamping and sealing assembly, so that blood can temporarily flow into the communicating catheter, blood pollution can be avoided, blood can be effectively stored, follow-up blood return is facilitated, and negative effects on health of a patient are reduced.

The invention belongs to the technical field of solar energy, and particularly relates to a side opening type strong magnetic fisher which comprises a base body, a connector is fixedly connected to the upper portion of the base body, a baffle is fixedly welded to the lower portion of a cylinder of the base body, a bottom plate is fixedly welded to the interior of a semicircular cylinder of the base body, and an insulating partition plate is arranged on the bottom plate. A strong magnetic positioning block and a strong magnet are arranged on the insulating partition plate, and the strong magnetic positioning block, the strong magnet, the insulating partition plate and the bottom plate are fixed together through screws. Due to the fact that the shifting plate is arranged on the outer side of the semicircular cylinder of the novel side-opening type strong magnetic fisher, a large gap is formed between the well wall and the semicircular cylinder, drilling fluid can return upwards easily, the semicircular cylinder can be protected against excessive abrasion, and the service life of the side-opening type strong magnetic fisher is prolonged.

The invention discloses an APP cross-version automatic testing method based on a semantic relationship and causal difference, and relates to the field of vehicle-mounted human-computer interfaces, and the method comprises the steps: S1, connecting a tested device with a testing environment, and obtaining an interface structure description and a screenshot of a tested application through an interface collection module; s2, constructing a semantic business card for each interactive element in the interface; the semantic business card comprises a control category, a resource identifier, an accessible description, an order in a page, information of the page and an adjacent text feature, and the semantic business card is used for cross-version, cross-theme and cross-resolution element identification after fusion; s3, constructing an element relation graph based on the interface structure description; the relation graph comprises a hierarchical father-son relation and a causal relation triggered by clicking; the causal relationship is established by comparing interface element sets before and after each operation and identifying newly appearing elements and disappearing elements.

The present invention proposes a combined filtering device for a gas purification system, including a directional valve, a gas transmission channel is arranged in the lower shell of the directional valve, and an air inlet I, an air outlet I and a return port are arranged on the gas transmission channel, the air outlet I is connected to the main filter, and a push assembly is arranged in the return port. The upper end of the lower shell is screwed with the upper shell, and a sliding valve stem and an air outlet II are arranged in the upper shell. A bypass valve is also arranged in the upper shell, and the air outlet II and the air inlet I are connected through the bypass valve, and the air outlet II is connected to the main filter through the first filter. The air outlet end of the main filter is provided with a blocking assembly, and the left side of the upper shell is provided with an air outlet III. A blocking block is fixed to the lower part of the valve stem. When the valve stem drives the blocking block to move downward, the air outlet III is communicated with the air outlet I, and the air outlet III is connected to the return port through the second filter. The present invention realizes the backwashing of the main filter without suspending the gas transmission and adopting a solenoid valve, etc., which is safer.

The utility model relates to the technical field of beveling machines, in particular to a beveling machine for ceramic composite pipe production, which comprises a beveling pressing assembly, a transmission assembly and a material ejecting assembly, the beveling pressing assembly comprises a support, a first telescopic driving part, a material pressing die and a guide seat, and a material returning hole corresponding to the material pressing die is formed in the guide seat. The conveying assembly comprises a fixing frame, a third telescopic driving part, a supporting plate, lengthening shafts and pressing plates, the supporting plate is connected with the fixing frame, a supporting groove corresponding to a pipe needing to be machined is formed in the supporting plate, the supporting groove in the supporting plate is opposite to the material passing hole of the guide base, and the two ends of the lengthening shafts of the supporting plate are connected with the corresponding pressing plates. And the plurality of pressing plates are connected with the output end of the telescopic driving part III, and the telescopic driving part III is connected with the fixing frame. The ceramic composite pipe beveling device has the effects that a plurality of beveled parts can be conveniently and simultaneously machined, a ceramic composite pipe needing to be machined can be conveniently and automatically moved, the pipe needing to be machined can be conveniently guided, and material returning is convenient.

The utility model relates to a movable lifting device for a gas collecting pipe of an automobile exhaust flow analyzer, which belongs to the technical field of automobile exhaust pollutant detection auxiliary equipment and comprises a support and a hoop, a holding rod is mounted at the top of the support, a lifting switch is mounted in the holding rod, and the support comprises a support body, a pull rod and universal wheels. The two pull rods are movably inserted into the frame bodies on the two sides, limiting blocks are transversely installed at the bottoms in the pull rods, a plurality of limiting holes are vertically formed in the intersection portions of the pull rods and the frame bodies, protrusions of the limiting blocks can penetrate through the limiting holes and are clamped, the tops of the limiting blocks abut against wedge-shaped blocks, and steel bars are fixedly connected to the tops of the wedge-shaped blocks. The top of the steel bar is connected with the lifting switch, and the hoop is fixedly installed at the bottom of the holding rod. According to the utility model, the height of the clamp is adjusted by adjusting the height of the pull rod, so that the device is suitable for exhaust pipes with different heights, the detection is convenient, the detection efficiency is improved, the workload of workers is reduced, and the detection quality can be improved.

The invention relates to the technical field of drilling, in particular to a reverse circulation anti-blocking drill bit and a gas lift reverse circulation drilling system.The reverse circulation anti-blocking drill bit comprises a drill bit body, a first flow channel and a second flow channel are arranged in the drill bit body and are in a streamline shape, and the diameter of a lower port of the first flow channel is smaller than that of an upper port of the first flow channel; the reverse circulation drill bit is not easy to block during working, so that the phenomenon of blockage of the drill bit is effectively avoided; when the gas lift reverse circulation drilling system adopts the reverse circulation anti-blocking drill bit, the drilling efficiency of the gas lift reverse circulation drilling system can be effectively guaranteed due to the fact that the drill bit is not prone to blocking.

The utility model discloses a high-temperature-resistant bus joint silica gel protection box, which comprises a protection box body and a guide assembly, and the guide assembly is positioned at the bottom of the protection box body. According to the utility model, through the arrangement of the guide assembly, when a bus joint needs to be maintained, the protection box body is opened firstly, so that the first connecting block and the second connecting block are located on the same horizontal line, a pushing force is applied to the guide plate, and after a limiting column passes through the interior of the first connecting block, a pulling force is applied to the guide column; according to the scheme, the limiting block and the connecting column are driven to penetrate through the connecting hole, then rotating force is applied to the limiting block, so that the limiting block and the limiting groove are consistent in shape, force applied to the guide column is cancelled, the limiting block is clamped in the guide plate under the action of elastic force of the first spring, and then the bus connector can be exposed and maintained. And the protection box is positioned at the bottom of the bus joint, so that the protection box is convenient to return again, and the tedious degree of maintaining the bus joint is reduced.

The utility model relates to a rotary positioning tool, in particular to a rotary positioning tool for detecting a driver controller, which is used for overcoming the defects that the working efficiency is low and the labor cost is increased because the appearance detection is carried out by manually overturning the driver controller at present. The rotary positioning tool used for detecting the driver controller comprises a mounting base, a rotary disc, a fixing frame, a horizontal positioning assembly, a vertical positioning assembly and a reset assembly, the horizontal positioning assembly can fix the fixing frame to the horizontal position to achieve mounting of the driver controller to be detected, and the vertical positioning assembly can fix the fixing frame to the vertical position to achieve resetting of the driver controller to be detected. The to-be-detected driver controller is rotated through the turntable, so that all-directional appearance detection is realized; the reset assembly can bounce the fixing frame provided with the driver controller to be detected, so that the fixing frame can return to the vertical position conveniently.

The utility model relates to a plug and an end plug for a cast pipe hydraulic press, which comprise a sealing disc which is a metal disc with a plane surface and a conical surface; the first sealing ring groove is positioned on one side of the conical surface of the sealing disc; the second sealing ring groove is positioned on one side of the plane of the sealing disc; elastic sealing pieces are arranged in the first sealing ring grooves and the second sealing ring grooves, and the multiple first sealing ring grooves and the sealing disc are concentric and are arranged in an outward radial mode; compared with the prior art, the sealing device has the advantages that sealing alignment is achieved when the whole cast pipe is bent or the lifting position is not accurate through a guide structure which is integrally in a conical shape at the position where the sealing device is in contact with the end of the cast pipe, and the sealing device is simple in structure, convenient to operate and high in practicability. The service life of the sealing element is prolonged.

This invention relates to the field of centrifugal fans, specifically disclosing a portable energy-saving electric fan and its usage method. The fan includes a housing with a grille and a fan installed inside the housing. The fan's outlet is aligned with the grille. The top of the housing has an opening through which the fan can extend. The fan's outer casing is divided into a fixed part and at least one movable part. The movable part is movable relative to the fixed part. When the movable and fixed parts are separated, maintenance tools can be inserted into the casing to inspect the inner wall and impeller. This invention allows the fan to be lifted from the housing for easy maintenance. Furthermore, the fan's outer casing can be divided into a fixed part and at least one movable part, and the fixed and movable parts can be fixed to the fixed part without connecting parts, only by a retaining element inside the housing, facilitating maintenance and return to its original position after maintenance.

The utility model discloses a cutting device with a good positioning effect for an electrolytic bath pole frame, which belongs to the technical field of cutting devices and comprises a working table fixedly mounted in a shell, a motor IV fixedly mounted in the working table, a worm fixedly mounted at the output end of the motor IV, a worm gear meshed with one side of the worm, and a rotating disc fixedly mounted at the top end of the worm gear. A plurality of square plates are slidably mounted at the top end of the workbench, trapezoidal blocks are fixedly mounted at the bottom ends of the square plates, round blocks are fixedly mounted at the bottom ends of the trapezoidal blocks and rotatably connected with the connecting rods, supporting columns are fixedly mounted at the top ends of the square plates, and sliding vertical plates are slidably mounted on the two sides of each supporting column. According to the cutting device, high-precision positioning and stable clamping of a metal material plate are achieved through cooperation of worm and gear transmission and a precise sliding mechanism, flexible adjustment of the cutting device in a three-dimensional space is achieved through combination of the motor and the threaded rod, and the cutting requirements of different sizes and shapes are met.

The utility model belongs to the field of terminal crimping machines, and particularly relates to a pressure-adjustable terminal crimping machine, which comprises a concave seat, the top of the concave seat is slidably connected with a sliding column, the sliding column penetrates through the concave seat, the top of the sliding column is fixedly connected with a filler strip, the outer side of the sliding column is provided with a lubricating mechanism, the bottom of the sliding column is fixedly connected with a bottom plate, and the bottom of the bottom plate is fixedly connected with a pressing plate. The bottom plate is slidably connected to the interior of the concave base, and a support is fixedly connected to the back of the concave base. The adjusting rod in threaded connection with the telescopic shaft of the air cylinder is arranged in the telescopic shaft of the air cylinder, the knob is arranged on the adjusting rod, and meanwhile, the pressing strip with the guide column is arranged at the tail end of the adjusting rod, so that on the premise that the stroke of the air cylinder is fixed, the telescopic amount of the adjusting rod in the telescopic shaft is controlled by rotating the adjusting rod; and the purpose of adjusting the crimping pressure of the terminal can be achieved.

The invention relates to a system (1) for steering steerable wheels (2) of a trailer (3), comprising a hydraulic control circuit (11), a hydraulic element (4) for absorbing a movement of a vehicle pulling the trailer (3), which hydraulic absorbing element (4) is connected for signal generation to the hydraulic control circuit (11), a hydraulic operating element (12) connected to the hydraulic control circuit (11) and acting on a steerable wheel (2), and means (20) connected to the hydraulic control circuit (11) for actively steering the steerable wheels (2), which active control means (20) comprise a pump (21). The hydraulic control circuit (11) may comprise a pressure-relief valve (28) arranged between the absorbing element (4) and the operating element (12) and a non-return valve (30) arranged between the pump (21) of the active control means (20) and the operating element (12), while the pressure-relief valve (28) and the non-return valve (30) may be integrated in a single valve unit (27). The system (1) may be provided with two absorbing elements (4) and two operating elements (12), wherein the hydraulic control circuit (11) comprises a single pressure sensor (39) which is connected for signal generation to the pump (21) of the active control means (20).

The invention discloses a fast bandaging and fixing device for first aid of limb destruction and open fracture in the field of medical auxiliary equipment, comprising a clamping piece, an air bag filled with a plurality of particles is arranged in the clamping piece, an auxiliary box and an air pump are connected to the air bag, and the particles can flow between the air bag and the auxiliary box; a water bag is arranged in the auxiliary box, and a coolant is filled in the water bag, and the water bag is connected to a water pipe, and the water pipe is arranged on the clamping piece; when the clamping piece clamps the injured position of the patient, the particles and the air bag fit the patient's limb, and the air pump is used to vacuum the air bag to fix the position of the particles, and the overflowed particles are transported to the auxiliary box through the conveying pipe, and the particles squeeze the water bag in the auxiliary box to transport the coolant to the water pipe, so as to achieve a cold compress effect. The device can be quickly tried out, is simple and easy to operate, and has a wide range of applications, and can provide medical staff with a convenient and efficient first aid tool, improve the efficiency of battlefield rescue, and improve the first aid effect and the survival rate of patients.

The invention relates to the technical field of battery production, in particular to winding equipment for button battery production. According to the technical scheme, the winding equipment for button cell production comprises a working table, an air pump is installed on the working table, the winding equipment further comprises a cleaning mechanism, a winding mechanism and a winding mechanism, the cleaning mechanism is arranged on the working table, and the cleaning mechanism is used for cleaning an anode pole piece and a cathode pole piece; the straightening mechanism is arranged on the workbench, and the straightening mechanism is used for enabling the anode pole piece and the cathode pole piece to keep sufficient tension. Through the design of the cleaning mechanism, the problems caused by the fact that dust or other impurities are attached to the surfaces of the anode pole piece and the cathode pole piece when the anode pole piece and the cathode pole piece are manually placed and the winding is completed can be prevented, and through the design of the straightening mechanism, when the anode pole piece and the cathode pole piece are wound, the anode pole piece and the cathode pole piece are straightened. Tension is kept applied to the anode pole piece and the cathode pole piece, and wrinkles are prevented from being generated after winding is completed.

The utility model discloses a bending handle of a template frame, which comprises a main body mechanism, the main body mechanism comprises a working table, the outer wall of the working table is fixedly connected with a support frame, the top of the support frame is fixedly connected with a connecting frame, one side of the top of the support frame is fixedly connected with a fixed frame, and the other side of the top of the support frame is slidably connected with a movable frame; and the positioning mechanism comprises telescopic rods fixedly connected to the tops of the fixed frame and the movable frame, a telescopic rotating plate is rotationally connected between the two telescopic rods, a telescopic connecting plate is rotationally connected to the outer wall of the tail end of the telescopic rotating plate, and a limiting groove is formed in the connecting position of the telescopic connecting plate and the telescopic rotating plate. The problems that when metal materials with different heights are bent through an existing bending handle, the height of the bent position cannot be adjusted, stress is prone to being uneven when high metal materials are bent, the shape of the bent position of the metal materials does not conform to the expectation, and the bent position of the metal materials is sunken and other deformations are caused in serious cases are solved.

The present invention discloses a receiver screen pasting machine. The receiver screen pasting machine comprises a frame, a material discharge module is installed at the left end of the frame and a material receiving module is installed at the right end, a transfer table is installed on the front end of the frame, a stripping machine is installed on the left side of the rear end of the frame and a four-axis manipulator is installed on the right side, the transfer table is located between the material discharge module and the material receiving module, a pressing machine is symmetrically placed at both ends of the transfer table, and the four-axis manipulator comprises a Y-axis moving component, the Y-axis moving component is longitudinally fixed on the frame, the X-axis moving component is transversely connected to the moving plate of the Y-axis moving component, the Z-axis moving component is longitudinally connected to the moving plate of the X-axis moving component, the angle rotation component is connected side by side to the inner side of the moving plate of the Z-axis moving component, and the CCD detection component is connected to one side of the angle rotation component. The present invention realizes the automated transfer production of receiver screens, with high transfer position accuracy, high yield rate and high production efficiency.

The utility model relates to a rerailer. The rerailer comprises a base and a positioning seat, the base comprises a bottom plate and two guide protrusions arranged on the bottom plate in a spaced mode, the bottom plate is further provided with a mounting groove located between the two guide protrusions, and the mounting groove communicates with the first end of the bottom plate; the positioning base comprises a first base plate and a second base plate which are arranged at the first end in a spaced mode, the first base plate and the second base plate are arranged on the side, close to the bottom plate, of the guiding protrusion, the first base plate and the second base plate are provided with a first side and a second side which deviate from the guiding protrusion respectively, and the first side and the second side abut against the sleeper. Wherein the first side is further provided with a first positioning assembly used for clamping the side wall of the sleeper. The rerailer can be stably fixed to the sleeper, displacement of the rerailer in the using process is avoided, and therefore secondary derailing of the roller is avoided.

The utility model relates to the field of firework production, in particular to a hemming and bottom sealing device for a firework outer cylinder. The technical problems that according to a traditional device, edge curling is not convenient to conduct on paper tubes from multiple angles at the same time, the edge curling effect is poor, material returning is not convenient to conduct on the edge-curled paper tubes, and workers are not convenient to take away the edge-curled paper tubes are solved. A hemming and bottom sealing device of a firework outer cylinder comprises a bottom frame, a rubber column is fixedly connected to the upper portion of the bottom frame, a limiting frame is connected to the upper portion of the bottom frame in a sliding mode, the limiting frame is connected with the rubber column in a sliding mode, and a paper cylinder is inserted into the rubber column. The extrusion ring makes contact with the contact frame, the extrusion ring can extrude the contact frame, the contact frame can extrude the lower edge of the paper tube, the lower edge of the paper tube is shrunk, the edge pushing frame continues to move upwards to push the shrunk lower edge of the paper tube upwards into the paper tube, edge curling can be conveniently conducted on the paper tube from multiple angles at the same time, and the edge curling effect is better.

The utility model discloses a mechanical arm type payment robot, relates to the technical field of road toll collection, and aims to solve the technical problems that the position of a current card collecting machine is fixed, so that the card collecting position is fixed, a card cannot be directly inserted into the card collecting position, and the card returning efficiency is influenced. The card collecting machine comprises a card collecting machine body, a steering engine is installed in one side of the card collecting machine body, an extension arm is fixedly installed at the output end of the steering engine, a card collecting box used for collecting cards is installed at the side end of the extension arm, and an L-shaped fixing plate is fixedly arranged on the side face of the extension arm. Therefore, the card collecting box can extend to the position close to the vehicle window, a driver can return cards easily, the card collecting box can be automatically turned over to adjust the angle in the turning and lifting process through rotating connection between the rotating block and the clamping piece, and the vehicle card returning device has the advantages that the vehicle card returning is convenient, time is saved, and the card returning efficiency is improved.

The utility model discloses a one-way ticket recovery mechanism device in a gate, and relates to the technical field of rail transit ticket recovery. The device structurally comprises a rack, a transfer swing ticket bin, a driving motor, a radio frequency card reader-writer and a recovery box, the rack comprises a rectangular frame plate; the upper end of the rectangular frame plate is provided with a ticket inlet corresponding to a ticket recovery port arranged at the upper end of the gate. A rectangular batten is fixed between the two side walls of the rectangular frame plate, and the rectangular batten is located right below the ticket inlet; a rotating shaft mounting hole is formed in one side wall of the rectangular frame plate. According to the utility model, through the combination of the transfer swing ticket bin and the driving motor, the transmission path of ticket cards is simplified, the use of a sensor and an electromagnetic valve is reduced, and the overall structure is more compact and concise; the radio frequency card reader-writer is used for reading and judging before the ticket card falls into the transfer swing ticket bin, so that the destination of the ticket card is determined in advance, and the processing speed is remarkably improved; the structure is compact, operation is easy and convenient, and good practicability and popularization value are achieved.

This utility model discloses a screw pump mounting shock-absorbing base, comprising: a base for providing a load-bearing foundation for the overall structure; a tray disposed on the base for mounting the screw pump body and capable of rising and falling with the structure to adapt to different installation heights; a shock absorber disposed above the base for absorbing the impact and vibration generated during the operation of the screw pump; a sliding top block slidably disposed on the base; multiple rod groups disposed between the tray and the sliding top block, the rod groups being composed of intersecting connecting rods for supporting the tray and guiding its rising and falling; rotating blocks disposed at the intersection corners of the rod groups for connecting adjacent connecting rods and achieving linkage adjustment; and a lead screw threadedly connected to the multiple rotating blocks for driving the rod groups to move the tray to achieve rising and falling adjustment.

The present invention discloses a cross-platform native function calling method and related equipment based on a hybrid technology stack, which belongs to the field of computer application. It includes: obtaining a user operation page preset in the business layer according to the user's operation instruction; obtaining a data request generated by the user operation page, wherein the data request includes interface parameters and call data information; obtaining an encapsulated navigation interface preset in the component layer according to the interface parameters; obtaining a business drive channel preset in the driver layer according to the encapsulated navigation interface, and the business drive channel is a communication channel from the encapsulated navigation interface to the preset native bottom layer; obtaining a native name preset in the driver layer according to the call data information; calling a native function preset in the native bottom layer according to the native name. The present invention can solve the problem that it is inconvenient for existing applications to call native functions across platforms, thereby making the development cost and maintenance cost of existing applications high.

Proposed is a friction shaft for a slitter that enables a winding pipe to stably roll unit materials formed by cutting a raw material, such as a raw fabric or film, with predetermined intervals, that can fix the rolling pipe even at a low pressure of compressed air, and that has a wide range of available rolling tension because the pressure range of compressed air that can adjust winding torque is wide.

The utility model discloses a stamping die capable of achieving rapid positioning and automatic material returning, and relates to the technical field of industrial manufacturing. Comprising a stamping base, a supporting frame is fixedly arranged at the bottom of the outer wall of the stamping base, the material returning structure is arranged in the supporting frame and the stamping base, the material returning structure comprises a hydraulic rod, a connecting plate, two lifting plates and two sets of material returning rods, the bottom of the outer wall of the hydraulic rod is installed in the supporting frame, and the output end of the hydraulic rod is fixedly arranged on the connecting plate; the two sides of the top of the connecting plate are fixedly arranged on the two lifting plates correspondingly, and the bottom ends of the outer walls of the two sets of material returning rods are fixedly arranged on the two lifting plates correspondingly. Through the supporting frame, the hydraulic rod, the connecting plate, the lifting plate and the material returning rods, the bottom of the edge of a formed plate can be extruded through sliding of the multiple inclined material returning rods, so that the formed plate is separated and slides down along the inclination angles of the material returning rods, material returning is more convenient, a mold can be replaced through clamped and embedded raw materials, and plates of different shapes are formed.

The invention is suitable for the technical field of traffic control and intelligent vehicle control, and provides a signalized intersection energy-saving control method considering an effect threshold value, which comprises the following steps of: constructing a bidirectional six-lane signalized intersection scene, dividing functional areas of the intersection, controlling a vehicle to complete lane change in a lane change area by a controller, and then controlling the speed of the vehicle. Then, for the situation that the control effect of the high traffic flow is deteriorated, a threshold value considering the traffic flow is obtained through simulation analysis, two control methods are designed in a controller, the first control method is applied to vehicle-road cooperative control under the medium-low traffic flow, and the second control method is applied to vehicle-road cooperative control under the medium-low traffic flow based on logic judgment and calculation; current vehicle parameters and traffic information are divided into four types of control models, so that reduction of parking times and passing time is taken as guidance, and economy is considered; and the second type is applied to intersection speed control under high flow, takes the vehicle energy consumption economy as guidance, considers the vehicle speed obtained by the first type control method, sets an adjustable weight factor, and improves the passing efficiency as much as possible.

The automatic feeding and discharging device for bolt machining comprises a feeding assembly, the feeding assembly comprises a U-shaped frame, the inner wall of the U-shaped frame is rotationally connected with a conveying belt, clamping grooves are evenly formed in the top of the conveying belt, a feeding bin is fixedly installed at the top of the U-shaped frame, and the bottom of the feeding bin is communicated with the inner wall of the U-shaped frame; the bolt picking device comprises a U-shaped frame, a bolt picking assembly is fixedly installed at the end of the U-shaped frame and comprises a rotating disc, an electromagnet is fixedly installed on the outer wall of the rotating disc and used for picking bolts, and an anti-loosening glue coating assembly is arranged at the output end of the rotating disc and comprises a brush handle and a receiving bin. Through the arrangement of the feeding assembly, the bolts are conveyed into the V-shaped groove in the top of the conveying belt, the bolts are picked up through the rotary disc, feeding of the bolts is conveniently, continuously and rapidly completed, meanwhile, material returning is convenient through cooperation with the material returning assembly, and the working efficiency is improved.

The utility model relates to the technical field of high-speed wire rod processing, in particular to high-speed wire rod coiling equipment which comprises a base and a side plate vertically and fixedly installed on the top of the base, a square coiling barrel is rotatably installed on one side of the base, four coiling seats are distributed in a surrounding mode to form an annular outline, and high-speed wire rods are wound. Due to the fact that the four coiling seats are synchronously adjusted in a telescopic mode, the outer diameter of the finally-formed high-speed coiled wire rod can be adjusted according to production requirements, and when the high-speed coiled wire rod is returned, the four coiling seats can be synchronously contracted, so that the high-speed coiled wire rod cannot be hooped and sleeved on the coiling seats and can be conveniently taken out from the coiling seats, and production efficiency is improved. The telescopic rod is pulled out of the square cylinder, the square cylinder is contracted and reset by the springs, so that the four coiling seats are pulled to be retracted and reset, the high-speed wire rod is not tightly sleeved on the coiling seats, and meanwhile, one end of the square cylinder is designed to be open due to pulling out of the telescopic rod, so that the high-speed wire rod is convenient to return.