49results about How to "Fully understand the purpose" patented technology

The invention relates to the technical field of medical instruments, in particular to an electromagnetic cardiac pulse assisting device. The electromagnetic cardiac pulse assisting device comprises an inner membrane, an outer membrane supporting body, two permanent magnets, electromagnets, a power source and a controller. The inner membrane covers the surface of the heart, and the outer membrane supporting body covers the outer side of the inner membrane. The two permanent magnets are fixed to the outer side of the inner membrane and correspond to the left ventricle and the right ventricle respectively. The two electromagnets are fixed to the inner side of the outer membrane supporting body and are opposite to the permanent magnets. The power source and the controller are used for supplying power to the electromagnets and adjusting the magnitude and the direction of current, so that the electromagnets can apply repulsive force or attractive force to the permanent magnets, and then the heart is driven to contract or relax. The device has the advantages of being capable of assisting the heart of the human body to beat, high in controllability, capable of improving the heart failure symptom and prolonging the service life of a patient, simple in structure, small and exquisite in size, capable of being implanted only through surgical operation, convenient to replace, low in manufacturing and using cost, long in service life and easy to accept by doctors and patients.

The invention relates to the technical field of heat coating, in particular to a heat coating device and a heat coating process method. The heat coating device comprises a workpiece grabbing mechanism, a rotating mechanism and a fluidized bed. The fluidized bed comprises a dust collection hood, a fluidized bin arranged in the dust collection hood and a first fluidized plate arranged in the fluidized bin. The fluidized bin is divided by the first fluidized plate into a fluidized pool and a first air inflation cavity up and down. The first inflation cavity communicates with the fluidized pool through micropores in the first fluidized plate. Feeding openings are formed above the fluidized pool. The first air inflation cavity is provided with a first air inlet. The workpiece grabbing mechanismcan grab to-be-coated heated workpieces, and the to-be-coated portions of the workpieces are stretched in or moved out of the fluidized pool. The rotating mechanism can enable the workpieces and thefluidized pool to rotate oppositely. The heat coating device has the advantages that the fluidization effect of heat coating powder is good, the workpiece immersion procedure in the heat coating process is quite reasonable, the workpieces can be in sufficient contact with the heat coating powder in a fluidized state, and stability of heat coating quality can be improved.

The invention discloses a gate machine in a cinema general affair automation system, and the gate machine comprises a case, a swinging gate core, and a gate rod. The gate machine is characterized in that the interior of the case is provided with a glasses storage and conveying mechanism and a ticket business controller; the case is provided with a glasses taking port, a glasses recycling port, a glasses taking inductor, a glasses recycling inductor, an entrance ticket checker, and an exit ticket checker; the gate machine carries out the conveying of 3D glasses through the glasses storage and conveying mechanism; the 3D glasses can be taken and recycled at the glasses taking port and the glasses recycling port; the entrance ticket checker and the exit ticket checker are connected with the ticket business controller, and transmit the ticket information to the ticket business controller, so as to transmit different information through the ticket business controller to control the opening / closing of the gate rod or control a thermal sensitive printer to print child tickets for access; the above operations does not need to be carry out manually; the gate machine is high in automation degree, achieves the high-efficiency operation, and saves the time.

The invention relates to the cable mounting field and particularly relates to a holding type cable tightening clamp. The holding type cable tightening clamp comprises a cable pressing plate and a holding plate assembly, wherein the holding plate assembly comprises a first clamping plate and a second clamping plate, two ends of the first clamping plate and the second clamping plate are respectivelyconnected through two connecting components, two ends of the cable pressing plate are respectively connected with two sides of the holding plate assembly through two connecting components, and the connecting components are screw rods and threaded sleeves; and the first clamping plate, the second clamping plate and a cable pressing part are respectively hinged with the corresponding threaded sleeves, the middle of the first clamping plate can be matched with the middle of the second clamping plate so as to form a clamp ring, and the cable pressing plate is arranged on the cable pressing plate.The holding type cable tightening clamp is convenient to mount and dismount and occupies a small area, can be used for firmly clamping cables without damaging the cables, is applicable to insulatorswith different diameter specifications and is convenient to adjust.

The invention belongs to the cable installation field and relates to a hinging type wire tightening clamp. The hinging type wire tightening clamp comprises a wire pressing plate and a hinging plate assembly; the hinging plate assembly includes a first clamping plate and a second clamping plate; one end of the wire pressing plate is hinged to one end of the hinging plate assembly through a first connection component; the first connection component includes a hinging shaft and a first threaded sleeve which are in threaded connection with each other; the first threaded sleeve is hinged to the wire pressing plate; the other end of the wire pressing plate is detachably connected with the other end of the hinging plate assembly through a second connection component; the second connection component comprises a hanging rod and a second threaded sleeve which are in threaded connection with each other; the second threaded sleeve is hinged to the wire pressing plate; the hanging rod is provided with a non-circular hanging buckle; through holes are formed in the first clamping plate and the second clamping plate respectively; after the hanging buckle passes through the through holes, the hanging rod can be rotated, so that the hanging buckle can deviate from the second through hole so as to be hanged on the second clamping plate; the middle of the first clamping plate and the middle of thesecond clamping plate can be matched with each other, so that a clamping ring can be formed; and the wire pressing plate is provided with a wire pressing portion. The hinging type wire tightening clamp is convenient to install and disassemble, does not occupy space, and does not damage a cable.

A self-locking type fastening wire clamp comprises a U-shaped male clamp and a female clamp. The bent position of the U-shaped male clamp is provided with a first wire clamping portion, and the female clamp is provided with a second wire clamping portion. The first wire clamping portion and the second wire clamping portion can be matched to clamp a cable. Two side rods of the U-shaped male clamp are locking rods. Corresponding through lock holes are formed in the female clamp. Non-return ring teeth are arranged on the locking rods. Movable locking blocks are arranged on the side edges of the locking holes. The locking blocks are provided with corresponding locking teeth. The locking blocks abut against locking springs. The locking springs push the locking blocks so that the locking teeth can abut against the non-return ring teeth of the locking rods so that the locking rods can be limited to move forwards only rather than inverse motion, a non-return self-locking mechanism is formed, the U-shaped male clamp can move forwards only and cannot move backwards in the female clamp, and during operation, automatic locking can be achieved by directly inserting the U-shaped male clamp into the female clamp, loosening is easy; when the clamp is opened, the locking blocks are taken back just by pressing back the locking springs, the U-shaped male clamp can be taken out freely from the female clamp, operation is quite convenient and rapid, use is convenient, and the wire clamp is particularly suitable for high-altitude overhead transmission line construction.

The present invention relates to the technical field of the equipment clamp, in particular to an anti-loose type equipment clamp. The anti-loose type equipment clamp comprises an equipment clamp and a cable clamp. The equipment clamp comprises an equipment clamp body, a dynamic pressure plate, a fastening bolt and a check bolt; the fastening bolt is also provided a reverse internal thread hole; the check bolt is provided with a reverse external thread; the equipment clamp body is provided with a fastening thread hole and a static pressure plate that are arranged opposite to each other; the fastening bolt passes through the fastening thread hole and is rotatably connected with the dynamic pressure plate; and the check bolt is inserted into the fastening bolt and connected with the reverse thread of the fastening bolt. The cable clamp comprises a cable clamp body, a dynamic clamp head and a locking bolt; the cable clamp body is provided with a locking thread hole and a static clamp head that are arranged opposite to each other; the locking bolt passes through the locking thread hole and is rotatably connected with the movable clamp head; and the dynamic clamp head and the static clamp head are provided with pressure grooves. Beneficial effects of the loose type equipment clamp provided by the present invention are that the conductive contact area between the equipment terminal and the equipment clamp is large, installation is firm, the contact surface is hard to generate a gap, and the safety and reliability are ensured.

The invention belongs to the technical field of heat pumps, and particularly relates to a heat pump circulating system suitable for low-temperature environment. The heat pump circulating system comprises a compressor, a first heat exchanger, a throttling device, a second heat exchanger, a four-way valve and a gas-liquid separator. When the heat pump circulating system is in a heating state in the low-temperature environment, a high-pressure refrigerant before entering the throttling device is guided into a high-pressure refrigerant pipe in a gas-liquid separator so as to exchange heat with unevaporated low-temperature low-pressure liquid-state refrigerant in the gas-liquid separator to completely evaporate the unevaporated low-temperature low-pressure liquid-state refrigerant in the gas-liquid separator into a gaseous refrigerant, so that a refrigerant returning the compressor is the gaseous refrigerant completely; the high-pressure refrigerant in the high-pressure refrigerant pipe further releases heat in the gas-liquid separator, super-cooling degree of the refrigerant in the high-pressure refrigerant pipe is increased, and energy efficiency of the whole heat pump circulating system is further improved.

The invention belongs to the technical field of heat pumps, and particularly relates to a heat pump system with heating and defrosting functions. The heat pump system comprises a compressor, a four-way valve, a first heat exchanger, a throttling device and a second heat exchanger which communicate with one another through a refrigerant circulation pipeline. The heat pump system is characterized byfurther comprising a working medium heater used for heating a refrigerant; and the working medium heater is connected in series between the throttling device and the first heat exchanger or the second heat exchanger. The heat pump system provided by the invention has the beneficial effects that the working medium heater is connected in series between the throttling device and one indoor heat exchanger, so that the throttled low-temperature refrigerant can be heated, the temperature of the heated refrigerant can approach the indoor environment temperature, and the indoor heat exchange can be protected against the fogging phenomenon caused by excessive temperature differentials; and furthermore, the problems that the defrosting time is hugely long, the defrosting process is not thorough, aswell as the unit failure rate and repair rate are high can be solved.

The invention relates to the electric power fitting technology field and especially discloses a multi-lead installation type shunt device. The device comprises a shunt seat and an insulation shell. One side of the shunt seat is provided with a first groove, a main wire screw and a dynamic pressing block. One side of the dynamic pressing block is rotatably connected to the main wire screw, and theother side and the groove wall of the other end of the first groove are cooperated to form a main wire clamp used for clamping a main lead. The other side of the shunt sea is provided with a second groove, several locking blocks and shunt wire holes. Each locking block corresponds to one or two shunt wire holes. Each locking block and the inner cavity wall of the second groove are hinged and cooperated to form a shunt wire clamp. The device has advantages that through the shunt seat, several shunt wires and the main lead are conductively connected, and a clamping force is constant; the shunt wire clamp includes the several independent locking blocks, each locking block can be used to fix one or two shunt wires; and when the shunt wires are installed, removed and overhauled, the other shuntwires are not influenced, and usage is flexible and convenient.

The invention relates to the cable cutter field and especially relates to a cable sheath cutter. The cutter comprises a cutter rest and a cutter head. The cutter rest comprises a handle, a cable support portion and an outer cylinder, wherein the cable support portion and the outer cylinder are arranged on the handle. A cylinder bottom of the outer cylinder is provided with a cutter outlet hole. The cutter outlet hole and the cable support portion are arranged oppositely. The cutter head comprises an inner cylinder, a straight cutter handle, a blade and an adjusting bolt. The inner cylinder isarranged in the outer cylinder and is only rotated. The inner cylinder is provided with an installation hole. The cutter handle is arranged in the installation hole, can only longitudinally move in the installation hole and can not rotate. One end of the cutter handle is fixedly connected to the blade and the other end forms threaded connection with the adjusting bolt. The blade faces towards thecutter outlet hole. A bolt head of the adjusting bolt is rotatably connected to the inner cylinder. The cable sheath cutter is provided with an adjusting structure and a limiting mechanism, wherein the adjusting structure is used for adjusting rotation of the inner cylinder; and the limiting mechanism is used for limiting an inner cylinder rotation position. The cutter has advantages that a peeling depth and an angle are uniform; and the cable sheath cutter can circumferentially cut a cable sheath and can also vertically cut the cable sheath.

The invention relates to the cable cutter field and especially relates to a cable peeling cutter. The cutter comprises a cutter rest and a cutter head. The cutter rest comprises a handle, a cable support portion and an outer cylinder, wherein the cable support portion and the outer cylinder are arranged on the handle. A cylinder bottom of the outer cylinder is provided with a cutter outlet hole. The cutter outlet hole and the cable support portion are arranged oppositely. The cutter head comprises an inner cylinder, a straight cutter handle, a blade and an adjusting bolt. The inner cylinder isarranged in the outer cylinder and is only rotated. The inner cylinder is provided with an installation hole. The cutter handle is arranged in the installation hole, can only longitudinally move in the installation hole and can not rotate. One end of the cutter handle is fixedly connected to the blade and the other end forms threaded connection with the adjusting bolt. The blade faces towards thecutter outlet hole. A bolt head of the adjusting bolt is rotatably connected to the inner cylinder. The cable peeling cutter is provided with an adjusting structure and a limiting mechanism, whereinthe adjusting structure is used for adjusting rotation of the inner cylinder; and the limiting mechanism is used for limiting an inner cylinder rotation position. The cutter has advantages that a peeling depth and an angle are uniform; and the cable peeling cutter can circumferentially cut a cable sheath and can also vertically cut the cable sheath.

The invention belongs to the technical field of heat pump systems, and particularly relates to a gas-liquid separator which comprises a tank. An inlet pipe and an outlet pipe are arranged in the tank,gas-liquid mixture enters the tank through the inlet pipe, a supporting rod, a connecting rod and an oil return floating ball are connected onto the outlet pipe and sequentially arranged, and the oilreturn floating ball can float on the surface of liquid.

The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator water drinking all-in-one machine. The refrigerator water drinking all-in-one machine comprises a refrigerator body and a water dispenser, wherein a cold water tank, a warm water tank and a hot water tank are arranged in the water dispenser; a refrigerant circulating system comprises a compressor, a condenser, a first throttling device, a refrigerator evaporator, a second throttling device, a cold water tank heat exchanger, a warm water tank heat exchanger, a box outer evaporator and a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a sixth valve, wherein the outlet of the compressor is connected with the first valve, the condenser, the fourth valve, the first throttling device, the refrigerator evaporator, the fifth valve, the box outer evaporator and the inlet of the compressor to form a loop; and the outlet of the compressor is further sequentiallyconnected with the second valve, the warm water tank heat exchanger and the inlet of the condenser, the outlet of the condenser is further sequentially connected with the third valve, the second throttling device, the sixth valve, the cold water tank heat exchanger and the inlet of the box outer evaporator, and an electric heating wire is arranged in the hot water tank. According to the machine, the waste heat and the waste cold generated by the refrigerator body can be effectively utilized, so that the heat efficiency is improved.

The invention relates to the technical field of welding, in particular to an electrode cap replacement machine. The electrode cap replacement machine comprises a casing, a cap dismounting head, a driving device and a damper, wherein the cap dismounting head is movably arranged in the casing and comprises a cap dismounting gear, a clamping jaw cover and a plurality of clamping jaws, the cap dismounting gear can rotate relative to the clamping jaw cover, the clamping jaws are uniformly arranged on an inner ring of the cap dismounting gear, the rear ends of the clamping jaws are hinged with the inner wall of the cap dismounting cap, longitudinal clamping blades are arranged at the front end of the clamping jaws, the clamping jaws are hinged with the clamping jaw cover, the damper is mounted on the casing and can perform damping positioning on the clamping jaw cover, and the driving device can drive the cap dismounting gear to rotate. The electrode cap replacement machine can realize forward and reverse cap dismounting by means of the clamping blades of a double-blade structure and is simple in structure and convenient to operate.

A method for simulating real driving vision base on three-dimensional space scene map adopts the following steps of 1) presetting a three-dimensional space coordinate system; 2) presetting the coordinate of the driving three-dimensional space move focus; 3) loading the driving three-dimensional scene map; 4) deducing the driving three-dimensional scene map change, utilizing the three-dimensional space scene map to simulate the real driving vision method, thereby being able to realize the visual skill of simulating the real driving car on the mobile device directly by using the three-dimensional space scene, and bringing conveniences to people.

The invention relates to the cable cutter field, and specifically relates to a cable chamfer peeler comprising a first knife rest, a second knife rest, and an adjusting screw rod; one side of the second knife rest is provided with a guide straight slot; one side of the first knife rest is provided with a guide block; the guide block is embedded in the guide straight slot so as to make reciprocating motions; the adjusting screw rod penetrates the guide straight slot and is threaded with the guide block; two ends of the adjusting screw rod are respectively connected with two ends of the guide straight slot in a rotary manner; the first and second knife rests are provided with a first clamping surface and a second clamping surface arranged in opposite; either the first knife rest or the second knife rest are fixedly provided with a chamfer blade; a chamfer cutting blade of the chamfer blade extends outside the corresponding clamping surface, and form an obtuse angle with the clamping surface. The advantages are that the cable chamfering is high in efficiency, and the chamfering depth and angle are even, thus effectively preventing cable inner structure damages in a chamfering process; the cable chamfer peeler is suitable for cables of different diameters, good in versatility, simple in structure, and safe and reliable.

The invention relates to the field of medical equipment and in particular discloses a biosafety blood sampling table which comprises a table body, wherein a shielding screen is arranged above the table body; both sides of the shielding screen are a medical operator side and a patient side respectively; a channel from which a patient stretches an arm to the medical operator side is formed between the lower edge of the shielding screen and a table surface; and an air exhaust and purification device for sucking, filtering and purifying air and flying saliva expired by the patient is arranged on the table surface of the patient side. By adopting the biosafety blood sampling table disclosed by the invention, effective biosafety protection on medical operators in blood sampling can be achieved,the structural designing is reasonable, and normal blood sampling is not affected.

The invention relates to the technical field of trundles, and particularly relates to a vibration reduction type trundle which comprises a trundle support, a wheel installed on the lower portion of the trundle support and a mounting structure arranged on the upper portion of the trundle support and used for being connected with bearing equipment, the trundle support comprises a support body, a vibration reduction frame, a fixing frame, at least one set of spring and a fixing rod, and the vibration reduction frame is of an integrally-formed structure; according to the vibration reduction type trundle, a lever principle vibration reduction mechanism is formed by matching the support body, the vibration reduction frame and the spring and the vibration reduction effect is better; and the pressing plate on the vibration reduction frame downwards abuts against the upper end of the spring, the structural strength is high, the force bearing performance is good, the stability and the durabilityare better, the occupied space of the structural design in the longitudinal space is small, the longitudinal swing space of the vibration reduction frame is large, the bearing piece is connected to the lower end of the fixing rod in a threaded mode, and disassembly and assembly are convenient.

The invention relates to the technical field of cutting tools, in particular to a multi-blade rotary feeding pipe cutting cutterhead and a pipe cutter. The multi-blade rotary feeding pipe cutting cutterhead comprises a shell, a cutterhead body, a cutterhead driving device used for driving the cutterhead body to rotate in the shell, a plurality of cutter rests and blades arranged on the cutterhead body, and a blade feeding mechanism used for driving the blades to rotate along with the cutterhead body in the forward direction to conduct synchronous stepping feeding. The cutterhead has the advantages that the multiple blades are arranged, the multiple blades can be driven to be synchronously fed in an electric driving mode, the blade feeding process and the cutterhead rotating process are synchronously carried out, and each blade can synchronously carry out tiny stepping type feeding every time the cutterhead rotates by a circle. The pipe cutter comprises the multi-blade rotary feeding pipe cutting cutterhead and a clamping device which are coaxially and fixedly connected together. The pipe cutter has the advantage that it can be guaranteed that pipes cannot accidentally slide relative to the cutterhead in the pipe cutting process.

The invention relates to the technical field of cleaning equipment, and specifically relates to bucket washing equipment. The bucket washing equipment comprises a water supply device and a cleaning cabinet, wherein the cleaning cabinet is provided with a cabinet door; at least one cleaning ball used for cleaning the interior of a bucket is arranged at the lower part in the cleaning cabinet; at least one sprayer used for cleaning the outside of the bucket is arranged at the upper part in the cleaning cabinet; the cleaning ball and the sprayer can be supplied with water through a water supply device; the cleaning ball comprises a hollow water spray ball, a vertically-arranged water inlet pipe and a bearing sleeve pipe; one end of the water inlet pipe is fixedly connected with the water sprayball and communicates with the interior of the water spray ball, and the other end of the water inlet pipe is rotationally connected with the bearing sleeve pipe and communicates with the water supply device; at least one inclined cutting joint is formed in the sidewall of the water spray ball; and a notch direction of the inclined cutting joint and the radial direction of the water spray ball form an acute-angle included angle or an obtuse-angle included angle. The bucket washing equipment is capable of cleaning various types of packaging buckets comprising eccentric buckets and square buckets; and moreover, the bucket washing equipment is simple in structure, low in manufacturing cost, and capable of cleaning the buckets rapidly and conveniently.

The invention relates to the technical field of medical instruments, in particular to an airflow suspension movement assembly and a dental handpiece, the airflow suspension movement assembly comprises a handpiece shell, a turbine assembly and a bearing, the bearing comprises an upper shaft sleeve and a lower shaft sleeve which are arranged outside a rotating shaft in a sleeving mode, a first gap is formed between the upper shaft sleeve and the rotating shaft, the upper shaft sleeve and the lower shaft sleeve are parallel to the upper end face and the lower end face of a turbine respectively to form a second gap, the upper shaft sleeve and the lower shaft sleeve are each provided with an annular air groove and a plurality of first throttling holes and second throttling holes, one ends of the first throttling holes and the second throttling holes are communicated with the annular air grooves, and the other ends of the first throttling holes and the second throttling holes are communicated with the first gap and the second gap respectively. When the turbine assembly works, a sleeve-shaped air film is formed in the radial direction of the rotating shaft through compressed air, flat gasket-shaped air films are formed on the upper end face and the lower end face of an impeller, and therefore the turbine assembly can be in a suspension state in the radial direction and the axial direction, and the turbine assembly is small in friction force, low in noise, and low in heat productivity when rotating at a high speed, not prone to abrasion, long in service life and easier to machine, manufacture and assemble.

The invention relates to the technical field of auxiliary handle movement structures, in particular to a connecting-rod type movement structure auxiliary vehicle handle. The handle comprises an auxiliary handle body, a mounting frame and a connecting-rod assembly; the auxiliary handle body comprises a holding part and a connecting frame; a base part of the mounting frame is fixedly mounted on a handlebar through a mounting base, the mounting frame and the connecting frame are provided with two pairs of hinge holes with the same spacing distance respectively, the connecting-rod assembly comprises a first connecting rod and a second connecting rod which are arranged in parallel, the two ends of the first connecting rod are hinged to two hinge holes in the mounting frame and the connecting frame respectively, the two ends of the second connecting rod are hinged to the hinged holes in the other sides of the mounting frame and the connecting frame respectively, the distance between the twohinge portions of the first connecting rod is equal to that between the two hinge portions of the second connecting rod, and the connecting frame, the first connecting rod, the mounting frame and thesecond connecting rod are sequentially hinged to form a parallelogram movement structure; through the design of the parallelogram movement structure, the auxiliary handle is always kept parallel to the handlebar in the holding process, the holding operation is more convenient and saves labor, and the auxiliary vehicle handle better accords with ergonomic design.

The invention relates to the technical field of compressed air supply systems, in particular to an intelligent energy-saving air compression station which comprises a container body, an air compression system installed in the container body, an in-station environment adjusting system and an intelligent Internet of Things management system. The air compression system comprises an integrated air compressor and an air tank, a drying machine is further integrated in the air compressor, an air inlet and an air outlet are formed in the container body, an air suction port of the air compressor and anair exhaust port used for heat dissipation of the air compressor both directly communicate with the external environment, and the in-station environment adjusting system comprises an air conditioningsystem and an electric effect protection device. The intelligent Internet of Things management system comprises a local linkage control system and a remote monitoring cloud platform. According to theintelligent energy-saving air compression station, the integrated design is adopted, the thermal load in the station is low, and the constant-temperature and constant-humidity environment and the stable power utilization environment in the station can be effectively kept with low energy consumption in combination with the in-station environment adjusting system; and by adopting the intelligent Internet of Things management system, unattended intelligent operation can be realized, and the management cost of a user is reduced.

The invention relates to the cable installation field and specifically relates to a street code clamp for a pin insulator. The street code clamp comprises a press plate, a hinge plate assembly and two locking bolts, wherein the press plate and the hinge plate assembly are arranged oppositely. The press plate is provided with a line pressing groove. The hinge plate assembly comprises a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are provided with a first C-shaped structure and a second C-shaped structure, the opening directions of which are opposite, respectively. The first C-shaped structure and the second C-shaped structure are cooperated to form a clamp ring for clamping an annular side groove of the pin insulator. The first clamping plate and the second clamping plate are superposed. The two locking bolts pass through the press plate, the first clamping plate and the second clamping plate in sequence and realize threaded connection. The clamping plates and the hinge plate assembly are in bolt connection; the hinge plate assembly is arranged in the annular side groove of the pin insulator through a hinge mode; and therefore, operation is convenient, a cable can be fixed firmly and safely.

The invention relates to the technical field of welding, in particular to a swing arm type electrode cap maintenance machine. The swing arm type electrode cap maintenance machine comprises a mountingbase, a swing arm, a rocking bar assembly used for regulating the position of the swing arm, an electrode cap maintenance machine, and a three-dimensional regulating frame for regulating the positionof the electrode cap maintenance machine, wherein the rocking bar assembly comprises a rocking bar, a connecting rod, a crank and a motor; the output shaft of the motor can drive the swing arm to swing in a plane perpendicular to a hinged shaft relative to the mounting base through the crank, the connecting rod and the rocking bar; when the crank is positioned on an upper stop point, the swing armrotates to a working state position; and when the crank is on a lower stop point, the swing arm rotates to an idle state position. The swing arm type electrode cap maintenance machine is suitable fora fixed type welding machine, can swing the electrode cap maintenance machine to a working position while needing to maintain the electrode cap, can put down the electrode cap maintenance machine through the swing arm for being put at one side while not needing to maintain the electrode cap; and moreover, influences are not generated on welding operation of fixed welding.

The invention relates to the technical field of printed circuit board processing equipment, in particular to a board taking device and a board taking method. The board taking device comprises a boardframe transferring mechanism, a board lifting mechanism, a board placing mechanism, a laser photoelectric sensor and a control device, wherein the laser photoelectric sensor comprises a laser emitterand a laser receiver, the laser emitter is fixedly arranged on the front side of a board piece and lower than the upper edge of the board piece, the laser receiver is fixedly arranged on the rear sideof the board piece and higher than the upper edge of the board, the laser emitter faces the laser receiver, and the control device is connected with the board frame transferring mechanism, the boardlifting mechanism, the board placing mechanism and the laser photoelectric sensor. By adopting the board taking device, the height of the upper edge of a to-be-taken board piece can be accurately measured, then the board piece is automatically moved to a designated board placing position through cooperation of the board lifting mechanism and the board placing mechanism, thus high efficiency, convenience and high precision are achieved, stress balance of the board piece can be kept in the board moving and overturning process, and bending or buckling deformation of the plane of the board piece is avoided.

The invention relates to the field of the electrical equipment, specifically a prefabricated distribution transform rack. The prefabricated distribution transform rack comprises first section of leadwires, second section of lead wires, third section of lead wires, isolation switches, fuse protectors and lightning arresters in one-to-one correspondence, and corresponding bearing cross members; theconnecting ends of the first section of lead wires, the second section of lead wires and the third section of lead wires are prefabricated connecting end sockets. Through the prefabricated distribution transform rack disclosed by the invention, the lead wires of the distribution transform rack and the matched products are prefabricated by adopting the standard process, the difference problem of the field construction processes of different operator is solved, and the prefabrication and standardization of the lead wire pressing and insulation treatment are realized, the rack can be delivered to come into use after the electrical performance of the product conforms to the requirement after the checking, the quality is guaranteed, and the fault rate is effectively reduced; the distribution transform rack is an integrated structure, the standard mounting can be adopted, and the mounting is quick and convenient, and the prefabricated distribution transform rack is fully equipped.

The invention relates to the field of medical equipment, in particular to a test tube selector. The test tube selector comprises a base. A plurality of inclined tracks for placing test tubes, test tube falling holes formed in the bottommost ends of the tracks and test tube selecting mechanisms in one-to-one correspondence to the tracks are arranged on the base. Each test tube selecting mechanism comprises a stop piece, and a first baffle plate and a second baffle plate on two sides of the stop piece; the first baffle plate and the second baffle plate are arranged front and back and the space between the first baffle plate and the second baffle plate is equal to the diameter of any test tube; the stop piece can swing in a reciprocating manner relative to the base, so that the first baffle plate or the second baffle plate appears on the track and prevents the test tube in front from sliding along the corresponding track; as the stop piece swings left and right, the other baffle plate stops other test tubes on the track of a selected test tube while one baffle plate does not stop the selected test tube. The test tube selector provided by the invention is simple in structure and fast and rapid to select the test tubes.

The invention relates to the field of package printing equipment and in particular relates to a solvent-free compounding machine. A compounding machine body is provided with an unwinding device and awinding device. The unwinding device is provided with a first unwinding unit, a first deviation correction unit and a coating unit; the winding device comprises a second unwinding unit, a second deviation correction unit, a compounding unit and a winding unit. A guide roller group for leading a first base material for coating a first coating medium of the coating unit to the compounding unit is arranged between the first unwinding unit and the compounding unit. According to the solvent-free compounding machine, the heat is uniformly reduced in a water cooling manner through a water cooling coating back-pressing steel roller; and the precision problem, caused by cold shrinkage and thermal expansion, on the coating back-pressing steel roller is reduced. A water cooling unit is arranged behind the compounding unit so that the cooling effect of a composite membrane is accelerated and the production efficiency is improved.