30results about How to "Flexible speed" patented technology

The invention provides a vehicle and road collaborative information-based signalized intersection vehicle speed guidance system, which comprises an information communication module, an information acquisition and processing module, a vehicle speed guidance and suggestion module and a vehicle safety early-warning module. The information acquisition and processing module is used for acquiring the information of a vehicle through the acquisition and processing process of the combination of a GPS and an INS. The information acquisition and processing module is also used for acquiring the information of a preceding vehicle and the signal state information of an annunciator via the information communication module. By means of the vehicle speed guidance and suggestion module, after the entrance of the above vehicle into a guidance range, whether the vehicle is within the range of lane-changing-allowable road segments or not is judged based on the vehicle information within the guidance range and the signal state information of the annunciator. Meanwhile, the vehicle speed guidance and suggestion module provides a vehicle speed guidance suggestion and a driving lane suggestion to the vehicle. The vehicle safety early-warning module calculates a safety margin value between two vehicles according to the information of the vehicle and the information of the preceding vehicle, and then judges the collision risk state of the vehicle according to the safety margin value. According to the invention, the real-time position of the vehicle, the real-time speed of the vehicle and the mutual influence among vehicles are fully contemplated. In this way, when the vehicle passes through a signalized intersection, the stop delay of the vehicle is reduced. Therefore, the traffic efficiency of roads is improved and the environmental pollution is reduced.

The present invention discloses a water pump durability test bench, which includes a programmable controller, a frequency transformator, a variable-frequency motor, a water tank, a first waterpipe, a second waterpipe, a workstation and a chucking appliance, wherein the chucking appliance fixes the water pump onto the workstation; the first waterpipe connects with a pump intake and the water tank outlet respectively; one end of the second waterpipe connects with outlet of the water pump and the other end inserted into the water tank; the programmable controller, the frequency transformator and the variable-frequency motor are connected in series through cables; the programmable controller sets frequency of the frequency transformator and start and stop time to control the frequency transformator outputs pressure frequency and drive the variable-frequency motor operate according to given rate of speed and drag the water pump operate. The water pump durability test bench of the invention has compact structure, low cost, high precision, automatic controllable test process, and suitable for small and medium-sized laboratories.

The invention relates to physical exercise equipment, in particular to a badminton racket and a manufacturing method thereof. The badminton racket comprises a racket frame, racket strings, string protecting nails, a racket rod, an end cap, a front sleeve, a racket handle, handle leather and a rear sleeve. The end cap is mounted in the tee joint position where the racket frame and the racket rod are connected, the racket frame, the front end of the racket rod and the end cap are connected together tightly, the front sleeve and the racket handle are mounted at the rear end of the racket rod, the handle leather is wound on the racket handle, the rear sleeve is mounted on the rear portion of the racket handle, and the racket strings are arranged on the racket frame through the string protecting nails in a penetrating mode. An end cap upper end face, an end cap side face and an end cap lower end face are provided, a blind hole is formed in the middle of the end cap lower end face of the end cap, and the racket rod stretches in the racket frame through the joint of the outer surface of the upper end of the racket rod and the inner surface of the blind hole of the end cap. Light non-woven shock-absorption fiber cloth is arranged in the racket frame, one side of the light non-woven shock-absorption fiber cloth is coated with a foam resin layer, the foam resin layer fills the inner cavity of the racket frame after swelled, and the light non-woven shock-absorption fiber cloth is fit with the inner surface of the outer frame of the racket frame.

An apparatus, medium, and method recognizing speech. The method may include the calculating of scores indicating the degree of similarity between a characteristic of an input speech and characteristics of speech models based on the degree of similarity between the length of each phoneme included in an input speech and the length of phonemes included in each speech model, and determining a speech model with the highest score among the scores to be the corresponding recognized speech for the input speech. By doing so, the speech recognition rate may be greatly enhanced and when an input speech includes continuous identical phonemes the word error rate (WER) may be greatly reduced.

The invention discloses a four-wheel wall-climbing robot with a curved surface adsorption function and a use method thereof. The four-wheel wall-climbing robot with the curved surface adsorption function comprises a left front vehicle frame, a left rear vehicle frame, a right front vehicle frame, a right rear vehicle frame and a curved surface self-adaptive mechanism, wherein permanent magnet adsorption mechanisms are correspondingly installed under the vehicle frames, power transmission mechanisms with the same structures are correspondingly installed under the left rear vehicle frame and theright rear vehicle frame, and the curved surface self-adaptive mechanism is used for the connection between the vehicle frames. According to the four-wheel wall-climbing robot with the curved surfaceadsorption function, the wall-climbing robot is stably adsorbed on the curved surface by four permanent magnet wheels, the four vehicle frames are connected through curved surface connecting mechanisms, and it is ensured that the robot can crawl on various curved surfaces, a servo motor is controlled by the wall-climbing robot, so that rotating speeds of the permanent magnet wheels are different,and differential steering is realized.

The invention provides a mechanical spiral door bolt mechanism for a safe box and cabinet. The mechanical spiral door bolt mechanism is formed in a way that a gear which is provided with a pulling sheet and is arranged on the handle is engaged with a sliding rack, the sliding rack is matched with a main shaft seat provided with a main shaft, the rack is matched with the rack seat and the pulling sheet, the rack is engaged with the main shaft, the sliding rack is fixedly arranged on a connecting rod, and the handle, the main shaft seat and the rack seat are fixedly arranged on a door plate. The middle links and excessive parts are reduced and omitted, the structure is compact, the size is small, driving and transmission elements are directly and fixedly arranged on the handle, the main shaft seat and the rack seat of the door plate, the transmission interference is avoided, and all parts can be easily manufactured and assembled. The gear and the sliding rack are engaged, the main shaft is driven to move through the connecting rod, the gear drives the double-groove rack to move through the pulling sheet, inclined teeth arranged on the double-groove rack are engaged with the long rack arranged on the main shaft for driving the main shaft to rotate, the connection between the main shaft and a screw sleeve fixedly arranged on the side door frame is firm and reliable, the prying is not easy, the anti-theft performance is good, and safety and reliability in use are realized. The mechanism is arranged on the handle seat and is arranged around the handle seat, the handle is directly held for operation, middle parts do not exist, and the operation is comfortable, easy and labor-saving.

A submersible dredging vehicle relates to an underwater dredging technology. The submersible dredging vehicle is provided with a vehicle body, wherein a submersible sewage pump is arranged on the vehicle body, a drain pipe is arranged on a liquid outlet of the submersible sewage pump, four spiral propeller type driving wheels are arranged on the two sides of the vehicle body, spiral directions of the adjacent two driving wheels are opposite, a water retaining cover plate is arranged on the vehicle body, the vehicle body is provided with four driving motors connected with the four driving wheels and is further provided with a water storehouse and a draining pump, the draining pump is provided with a check pump, the water storehouse is provided with a water inlet pipe and a gas identification rod, an electric valve is arranged on the water inlet pipe, and the electric valve, the submersible sewage pump and the four driving motors are connected with a controller. The submersible dredging vehicle can move forwards and backwards, carry out translation, turn around by taking any one driving wheel as a circle center and by taking the center of the vehicle body as the circle center, move and the like through the turning matching of the four driving wheels. The submersible dredging vehicle disclosed by the invention has the advantages of high locomotive maneuverability, simplicity and convenience in position change, easy handling, no dead corner during working, more thorough cleaning, high dredging efficiency and strong subsidence and sliding capabilities.

The invention relates to an electric propulsion converter device for an ocean fishing boat, and in particular relates to an electric propulsion converter for an ocean fishing boat. The electric propulsion converter comprises a cabinet; a power unit, a control unit, a cooling unit and wiring harnesses are arranged in the cabinet; the power unit comprises a rectifier module, an inverter chopper module and a direct-current support capacitor; the rectifier module comprises a rectifier input copper bar, a rectifier power module and a main contactor; the inverter chopper module comprises a three-phase inverter output copper bar and an inverter chopper power module; the control unit comprises a traction control unit, a sensor, a filter and a power supply; the cooling unit comprises a heat exchanger, a water pump, a water replenishing box, a pipeline, a temperature sensor, a pressure sensor, a valve and a cooling pipeline; and the wiring harnesses include low-voltage wiring harness and high-voltage wiring harness. Electric transmission based on the converter gradually replaces the traditional transmission mode by the advantages, such as low speed, large toque, uniform low-speed operation, flexible configuration and high reliability; the electric transmission is the mainstream development direction of ship propulsion; and thus, the electric propulsion converter has wide application prospect.

The application provides an intrinsic safety circuit spark test device and speed regulation method. The method includes determining a position of a 90-degree separation point on a moving trajectory of tungsten filaments and a groove, calculating angles of a copper electrode and a cadmium disc electrode turning from initial positions when the tungsten filaments and a groove edge of the cadmium disc electrode separate just at the 90-degree separation point to obtain the periodical change law of the turning angles; and according to the periodical change law, utilizing a first stepping motor and a second stepping motor to control the rotating speed of a rotary electrode holder and the cadmium disc electrode, so that four tungsten filaments and the edge of the groove separate just at the 90-degree separation point at a specified angle interval and time interval. By use of the embodiments of the application, the detection sensitivity and detection efficiency of the spark test device can be effectively improved.

The invention discloses a multifunctional tracked vehicle. The multifunctional tracked vehicle comprises a frame, a chassis frame, a track device, a wheel type device and a flight device used for enabling the frame to fly; the track device comprises tracks and a first driving mechanism used for driving the tracks; two tracks are arranged and are symmetrically arranged on the left and right sides of the chassis frame; the wheel type device comprises three running wheels; the bottoms of the running wheels are lower than the bottoms of the tracks; the running wheels comprise linear motors, stepping motors, hub motors and motor boxes; a wheel tread adjusting device is arranged between the two rear running wheels; the flight device comprises four groups of flight components which are correspondingly arranged at the four corners of the chassis frame; each group of flight component comprises a rotating external shaft, a rotating internal shaft and propeller blades capable of retracting and extending; the rotating internal shaft is connected to the rotating external shaft through a lifting mechanism in a liftable manner; and the propeller blades are mounted at the top of the rotating internal shaft. The multifunctional tracked vehicle has three different running modes, also has the advantages of a tracked vehicle and a wheel type vehicle, can adapt to different terrains and is more flexible.

The invention provides a structure of an inflatable ship body. Ship bottom backing cloths are larger than ship bottom roof cloths, a left side cloth and a right side cloth are respectively combined above a position on which the two sides of each ship bottom backing cloth are larger than the corresponding ship bottom roof cloth, after the left side cloths and the right side cloths are respectively bonded to the two side edges of the corresponding ship bottom backing cloth relative to outer side edges, an outer bonding strip is bonded outside each bonding seam, the opposite inner side edges of each left side cloth and the corresponding right side cloth are respectively bonded to the roof surface of an outer edge, near two side edges of each ship bottom roof cloth through the outer bonding strips, the bottom surfaces of two side edges of each ship bottom roof cloth are respectively bonded to the upper surface of the corresponding ship bottom backing cloth through folding bonding strips, roof surfaces, near two side edges, of each ship bottom roof cloth are respectively bonded to inner sides of periphery air chambers which are formed by the left side cloths and the right side cloths through the folding bonding strips, and the periphery air chambers at the bottom and on the left side and the right side of a ship are formed; besides, a ship bottom consists of an integral ship bottom backing cloth, bonding seams of the two side edges of the ship bottom backing cloth and the two outer sides of the left side cloth and the two outer sides of the right side cloth on two sides are higher than a water level, and when the ship bottom is soaked in water for a long term, the condition that the ship bottom is damaged due to the cracking of the bonding seams is not liable to occur.

The invention provides a funnel type permutation and combination kitchen waste processing device. The funnel type permutation and combination kitchen waste processing device comprises a support seat,a power device, an outer housing, a feed hopper, an inner housing, a multistage crushing device, a discharge spiral push rod device and a water delivery device. The funnel type permutation and combination kitchen waste processing device has the beneficial effects of 1, using a decelerator structure, thereby being low in rotation speed and large in torque, and not only reducing influence to surrounding environment, but also effectively crushing block hard materials of bone and the like; 2, using the multistage crushing device, thereby being flexible in structure, and capable of controlling thequantity of roll shaft groups and the size of intervals among roll shafts in each group according to demands in the production process; 3, using the multiple roll shaft groups for continuously feedingfrom the top down, increasing rotation speed of the roll shafts step by step from the top down through transmission among gears, and being capable of effectively preventing the materials from depositing among the multistage roll shaft groups; 4, installing a scraper group, thereby being capable of continuously and effectively clearing material deposits in roll grooves; 5, being capable of selecting if water needs to be used or selecting the water delivery amount according to the demands; and 6, being capable of effectively controlling the size of the discharged materials.

The invention provides a triphibious robot. The triphibious robot comprises a body, a signal receiving unit, a flight unit, a first mobile unit and a second mobile unit, wherein the signal receiving unit, the flight unit, the first mobile unit and the second mobile unit are all disposed on the body; the signal receiving unit is used for receiving a control signal from a terminal and transmitting the control signal to the flight unit, the first mobile unit and the second mobile unit; and the flight unit drives the body to perform a flying action according to the control signal. The triphibiousrobot has both the ability of walking and the ability of wall climbing on the basis of flight, can realize the detection of indoors, outdoors and narrow lanes, and has more comprehensive functions andwider application occasions; and a flapping wing type flight structure has the advantages of high speed, flexibility, long-term flight with the dependence on less energy and noise reduction due to noemission of a loud sound due to no high-speed rotating wings.

The invention discloses a symmetric cone rolling part. Cone revolving roller pressure heads are adopted. The symmetric cone rolling part comprises a rotating pressure body and the roller pressure heads. The rotating pressure body comprises a retainer, a supporting shaft, a shaft sleeve, a shaft pin, a connecting fixture block, a rolling tool body, a spring and a hinged bolt; and each of the roller pressure heads is integrally molded and is arranged in a caulking groove of the rotating pressure body, and the appearance of each of the roller pressure heads is formed by splicing two conical rollers with the same size on a bottom surface. The invention also discloses a symmetric cone rolling device comprising the rolling part. According to the symmetric cone rolling device, the rotating pressure body drives the revolving roller pressure heads nested in the rotating pressure body to roll a metal surface in a reciprocated way at high speed, and a strain strengthening effect is generated on the metal surface, so that the metal surface is strengthened; a cone revolving roller is divided into a supporting surface and a working surface, the supporting surface is used for transferring the positive pressure of the pressure body to the working surface, approximately pure rolling is remained between the working surface and a test piece, and the contact friction between the working surface and the test piece is avoided due to the existence of a reserved gap between the working surface and the pressure body, so that the service life of a die can be effectively prolonged.

The invention discloses a visual-guided thin-walled workpiece mirror image milling jacking-supporting device which is composed of a jacking-supporting device visual part and a mechanical arm movementpart. The jacking-supporting device visual part adopts two binocular vision cameras to watch the arbitrary posture of a machining head in real time. The binocular vision cameras are placed on one sideof the mirror image milling machine tool machining head. The feature picture of the machining head is shot before machining and stored in a computer; when a workpiece is machined, the binocular cameras shoot the posture of the workpiece in real time, and all pictures and the picture stored into the computer previously are subjected to feature matching by applying a feature matching technology based on the GMS algorithm; the posture conversion relationship between the camera coordinate system and the mechanical arm coordinate system is determined; when the tail end of the machining head moves,a mechanical arm tail end actuator moves in real time along with the machining head in a mirror image synchronous mode; and servo motors of all joints of a mechanical arm are controlled through the computer to achieve waist rotation, shoulder rotation, elbow rotation and wrist rotation, and movement of a tail end jacking-supporting part is achieved.

The invention relates to a mobile robot seat structure, which is composed of four parts: a load-bearing structure, a lifting structure, a transmission structure and a bogie structure. The load-bearing structure includes an upper stool surface, three load-bearing rod fixing frames, three load-bearing rods and three universal wheels; the lifting structure includes a lower stool surface, a lifting fixing frame, a lifting rod, a supporting motor frame, a lifting The motor, lead screw, and each part are connected by pins; the transmission structure includes upper chassis, lower chassis, bogie structure, steering motor, transmission motor, and tensioning structure. The steering motor drives the bogie to rotate through the synchronous belt, and the transmission motor passes through the umbrella. The gear drives the drive shaft to rotate, and the drive shaft rotates the transmission shaft through the synchronous belt to make the robot move forward and backward. The main features of the present invention are: in addition to satisfying the basic functions of the traditional seat, it can also move freely with people, automatically avoid obstacles, and can be freely arranged and combined according to needs.

The invention discloses a snakelike robot which comprises a snake head, a snake body and a snake tail. The snake head comprises a snake head shell and a joint male head fixed to the tail end of the snake head shell. The front end and the rear end of the snake body are provided with joint female heads. The snake tail comprises a snake tail shell and a joint male head fixed to the front end of the snake tail shell. The snake head, the snake body and the snake tail are sequentially connected through insertion and connection of the joint male heads and the joint female heads. The snakelike robot has the advantages that a dual-core processor in the snakelike robot solves the problem of inter-chip communication in a traditional DSP+CPLD or DSP+RAM dual-chip scheme, the control speed and efficiency of the snakelike robot are greatly improved, and the complexity of the snakelike robot is greatly lowered. Operation is user-friendly, control is flexible, parameters are easy to adjust, the detection sensitivity is high, the monitoring accuracy is high, the speed control precision is high, the speed dynamic responding is fast, and the power supply application rate is high.

The invention discloses an equal-tooth adjustment positioning device for an iron plate of a metal decorating machine. The equal-tooth adjustment positioning device comprises a tooth engaging shaft which movably penetrates through the inner sides of the outer edges of the two axial ends of an impression cylinder. A plurality of pairs of auxiliary tooth engaging positioning mechanisms are positioned and evenly distributed in the axial direction of the tooth engaging shaft at intervals. Equal-tooth electric adjustment positioning mechanisms are arranged on the tooth engaging shaft and located between every two pairs of the adjacent auxiliary tooth engaging positioning mechanisms. The equal-tooth electric adjustment positioning mechanisms comprise front guide bases, front guide supports, supports, brackets, front guide tongues, engaging teeth, worms, turbines, proximity switches and stepping motors, wherein the supports, the brackets, the front guide tongues, the engaging teeth, the worms, the turbines, the proximity switches and the stepping motors are arranged on the corresponding front guide bases. The position of the iron plate entering a printing point can be determined by debugging the front guide position at the lower side of a tooth engaging plate on an equal-tooth electric adjustment device, the front guide movement amount can be controlled in a unified mode through a stepping motor drive device, then the equal-tooth electric adjustment device and tooth engaging plates on other auxiliary positioning devices are used for engaging the in-site iron plate after the longitudinal position of the iron plate is determined, the purposes of synchronously and accurately positioning the iron plate and reducing the early-stage adjusting registration number of times of the metal decorating machine and the proof printing iron plate number can be achieved, and the percent of pass of printing products is increased.

A submersible dredging vehicle relates to an underwater dredging technology. The submersible dredging vehicle is provided with a vehicle body, wherein a submersible sewage pump is arranged on the vehicle body, a drain pipe is arranged on a liquid outlet of the submersible sewage pump, four spiral propeller type driving wheels are arranged on the two sides of the vehicle body, spiral directions of the adjacent two driving wheels are opposite, a water retaining cover plate is arranged on the vehicle body, the vehicle body is provided with four driving motors connected with the four driving wheels and is further provided with a water storehouse and a draining pump, the draining pump is provided with a check pump, the water storehouse is provided with a water inlet pipe and a gas identification rod, an electric valve is arranged on the water inlet pipe, and the electric valve, the submersible sewage pump and the four driving motors are connected with a controller. The submersible dredging vehicle can move forwards and backwards, carry out translation, turn around by taking any one driving wheel as a circle center and by taking the center of the vehicle body as the circle center, move and the like through the turning matching of the four driving wheels. The submersible dredging vehicle disclosed by the invention has the advantages of high locomotive maneuverability, simplicity and convenience in position change, easy handling, no dead corner during working, more thorough cleaning, high dredging efficiency and strong subsidence and sliding capabilities.

The invention discloses a wake-up robot and a wake-up system comprising the same. The wake-up robot comprises a body, a flying unit, a signal receiving unit, a detecting unit, an execution unit and apower supply unit, wherein the flying unit, the signal receiving unit, the detecting unit, the execution unit and the power supply unit are arranged on the body; the signal receiving unit is configured to receive a control signal from the terminal, and transmit the control signal to the flying unit, the detecting unit and the execution unit, the flying unit performs a flying action according to the control signal, the detecting unit detects a user position according to the control signal, and the execution unit performs a wake-up action according to the control signal. The wake-up robot and the wake-up system combine a flapping wing type flying structure with the execution unit performing the wake-up action, and has the advantages of high speed, flexibility, long-time flight ability with few energy, no loud sound production and the like.

The present invention provides a signal-controlled intersection vehicle speed guidance system based on vehicle-road coordination, including an information communication module; an information collection and processing module, which obtains the vehicle information of the vehicle through the combined collection and processing of GPS and INS, and collects the vehicle information of the preceding vehicle through the information communication module and the signal state information of the signal; the vehicle speed guidance suggestion module, when the vehicle enters the guidance range, according to the vehicle information of the vehicle within the guidance range and the signal state information of the signal machine, it is judged whether the vehicle is within the range of the road section where lane change is allowed, and the vehicle speed is provided. Guidance suggestions and driving lane suggestions; the vehicle safety warning module calculates the safety margin value between the two vehicles according to the vehicle information of the own vehicle and the vehicle in front, and judges the collision risk state according to the safety margin value. The invention fully considers the real-time position, real-time speed of the vehicle and the mutual influence between the vehicles, so that the vehicle can reduce the parking delay when passing the signal-controlled intersection, so as to improve the traffic efficiency of the road and reduce environmental pollution.

The invention relates to the technical field of agricultural machinery, and discloses a track device capable of keeping workers away from a spray nozzle during pesticide spraying. The track device comprises a toothed belt. An extensible protrusion is fixedly connected to the surface of the toothed belt. A jacking rod is fixedly connected into the extensible protrusion. A support gear shaft is connected into the toothed belt in a meshed mode. Control rods are rotationally connected to two ends of the support gear shaft. A coupling device is rotationally connected between two power gear shafts.Support rods are rotationally connected between the two power gear shafts and two gears. The track device capable of keeping the workers away from the spray nozzle during pesticide spraying has the advantages that through cooperative use of the toothed belt and the power gear shafts, the workers can be kept away from the spray nozzle to be prevented from injuries caused by pesticides, so that thepesticides are continuously sprayed in a mechanically stable environment; the spraying process is completely different from conventional spraying processes in which the workers carry devices, and thepesticide spraying efficiency is greatly improved.

The invention discloses electronic dancing shoes. Each dancing shoe comprises a dancing shoe body, a control circuit and a sound box matched with the control circuit, each dancing shoe body comprisesan upper and a sole, the sole comprises a forefoot and a heel, the forefoot is connected with the heel through a wire, a plurality of touch switches and inertia switches are arranged in the forefoot and the heel respectively, a circuit board and a battery are further arranged in the heel, a fifth touch area, a second adjusting screw, a power switch, a charging indicator lamp and a charging interface are arranged on the heel, and the control circuit comprises a single-chip microcomputer, touch switches, inertia switches, a power module and a wireless transmission module. By means of a matchingstructure of the forefoot and the heel, the sound making speed is high, and flexibility and variability are achieved; the problems that in the prior art, the site is limited, and noise generated whenthe dancing shoes are kicked to strike the ground is too large are solved, and the requirements of beginners and qualified dancers can be met at the same time.

The invention discloses a digital electric tea frying machine. The digital electric tea frying machine comprises a base frame, a tea frying tank, a heating device, a motor, a transverse shaft, tea frying mechanisms, a speed adjusting device and a master tea frying system. The tea frying tank is installed on the base frame and provided with a feeding port and a discharging port; the heating deviceis connected with the bottom end of the tea frying tank, and the motor is installed on one side of the tea frying tank; the transverse shaft is mounted in the tea frying tank, and the transverse shaftis connected with the output shaft of the motor; tea frying mechanisms are all mounted on the transverse shaft; the speed adjusting device is mounted on the tea frying tank and corresponds to the teafrying mechanisms in position; and the master tea frying system is connected with the speed adjusting device and the heating device. By adjusting the resistance value of a controllable resistor, adjusting the electrifying current of each electromagnet, adjusting the magnetic force of the electromagnet and controlling the rotating speed of each shifting handle, tea leaves at different positions inthe tea frying machine can be coaxially turned over to different degrees at different speeds, so that the rotating speed of each shifting handle is more flexibly adjusted, and the quality of fried tea leaves is improved.

The invention discloses a nondestructive conveying device and a working method thereof. The nondestructive conveying device comprises a box feeding device, a bracket assembly, a Z-axis lifting assembly, an X-axis moving assembly and a detecting and positioning device. The box feeding device is arranged at one end of a conveying line and comprises a material storage box, a pushing plate and a material blocking device. The bracket assembly comprises a base arranged at the bottom of the conveying device, a bracket group fixedly arranged on the base and an electric cabinet arranged on the base. The Z-axis lifting assembly comprises four transmission shafts arranged on a bracket group, transmission gear groups arranged at two ends of the transmission shafts, four closed transmission chains which sleeve the transmission gear groups and a bearing plate arranged on the chains. The X-axis moving assembly comprises an X-axis slide rail frame arranged on the bracket assembly and a limiting slideblock fixedly arranged on the slide rail frame. The detecting and positioning device comprises an infrared scanning device and a weight sensor. According to the nondestructive conveying device and theworking method thereof, the Z-axis lifting assembly and the X-axis moving assembly are adopted to rapidly and flexibly complete four steps of box feeding, lifting, box discharging and return.

The invention discloses a nondestructive conveying device and a working method thereof. The nondestructive conveying device comprises a box feeding device, a bracket assembly, a Z-axis lifting assembly, an X-axis moving assembly and a detecting and positioning device. The box feeding device is arranged at one end of a conveying line and comprises a material storage box, a pushing plate and a material blocking device. The bracket assembly comprises a base arranged at the bottom of the conveying device, a bracket group fixedly arranged on the base and an electric cabinet arranged on the base. The Z-axis lifting assembly comprises four transmission shafts arranged on a bracket group, transmission gear groups arranged at two ends of the transmission shafts, four closed transmission chains which sleeve the transmission gear groups and a bearing plate arranged on the chains. The X-axis moving assembly comprises an X-axis slide rail frame arranged on the bracket assembly and a limiting slideblock fixedly arranged on the slide rail frame. The detecting and positioning device comprises an infrared scanning device and a weight sensor. According to the nondestructive conveying device and theworking method thereof, the Z-axis lifting assembly and the X-axis moving assembly are adopted to rapidly and flexibly complete four steps of box feeding, lifting, box discharging and return.

The invention relates to physical exercise equipment, in particular to a badminton racket and a manufacturing method thereof. The badminton racket comprises a racket frame, racket strings, string protecting nails, a racket rod, an end cap, a front sleeve, a racket handle, handle leather and a rear sleeve. The end cap is mounted in the tee joint position where the racket frame and the racket rod are connected, the racket frame, the front end of the racket rod and the end cap are connected together tightly, the front sleeve and the racket handle are mounted at the rear end of the racket rod, the handle leather is wound on the racket handle, the rear sleeve is mounted on the rear portion of the racket handle, and the racket strings are arranged on the racket frame through the string protecting nails in a penetrating mode. An end cap upper end face, an end cap side face and an end cap lower end face are provided, a blind hole is formed in the middle of the end cap lower end face of the end cap, and the racket rod stretches in the racket frame through the joint of the outer surface of the upper end of the racket rod and the inner surface of the blind hole of the end cap. Light non-woven shock-absorption fiber cloth is arranged in the racket frame, one side of the light non-woven shock-absorption fiber cloth is coated with a foam resin layer, the foam resin layer fills the inner cavity of the racket frame after swelled, and the light non-woven shock-absorption fiber cloth is fit with the inner surface of the outer frame of the racket frame.

The invention provides a mechanical spiral door bolt mechanism for a safe box and cabinet. The mechanical spiral door bolt mechanism is formed in a way that a gear which is provided with a pulling sheet and is arranged on the handle is engaged with a sliding rack, the sliding rack is matched with a main shaft seat provided with a main shaft, the rack is matched with the rack seat and the pulling sheet, the rack is engaged with the main shaft, the sliding rack is fixedly arranged on a connecting rod, and the handle, the main shaft seat and the rack seat are fixedly arranged on a door plate. The middle links and excessive parts are reduced and omitted, the structure is compact, the size is small, driving and transmission elements are directly and fixedly arranged on the handle, the main shaft seat and the rack seat of the door plate, the transmission interference is avoided, and all parts can be easily manufactured and assembled. The gear and the sliding rack are engaged, the main shaft is driven to move through the connecting rod, the gear drives the double-groove rack to move through the pulling sheet, inclined teeth arranged on the double-groove rack are engaged with the long rack arranged on the main shaft for driving the main shaft to rotate, the connection between the main shaft and a screw sleeve fixedly arranged on the side door frame is firm and reliable, the prying is not easy, the anti-theft performance is good, and safety and reliability in use are realized. The mechanism is arranged on the handle seat and is arranged around the handle seat, the handle is directly held for operation, middle parts do not exist, and the operation is comfortable, easy and labor-saving.