42results about How to "Replacement reached" patented technology

The invention relates to the technical field of railway vehicles and discloses a stepless adjusting quasi-zero stiffness central suspension device. The stepless adjusting quasi-zero stiffness centralsuspension device comprises a bogie and a fixing plate; a supporting plate is slidingly connected to the internal wall of the bogie; moving grooves matched with the two ends of the supporting plate are formed in the internal wall of the bogie; two symmetrically distributed slide grooves are fixedly formed in the upper surface of the supporting plate; slide blocks are slidingly connected to the internal walls of the two slide grooves; first arc plates are mutually and fixedly connected to the upper surfaces of the two slide blocks; and second arc plates are fixedly connected to the lower surfaces of the first arc plates. According to the stepless adjusting quasi-zero stiffness central suspension device, through two-stage shock absorption, the shock absorbing effect of the stepless adjustingquasi-zero stiffness central suspension device can be effectively improved, the vehicle body taking comfort can be improved, overload working of the stepless adjusting quasi-zero stiffness central suspension device can be effectively avoided, the service life of the stepless adjusting quasi-zero stiffness central suspension device can be prolonged, the buffering spring changing process of the stepless adjusting quasi-zero stiffness central suspension device is simple, convenient and fast, time and labor are saved, and the maintenance efficiency of the stepless adjusting quasi-zero stiffness central suspension device is enhanced.

The invention discloses a novel auxiliary rising device for nursing, including a bed body and a rotating plate, wherein the right end of the bed body is provided with a placing groove adapted to the rotating plate; the rotating plate is fixed in the right end of the placing groove through a rotating shaft; a moving mechanism comprises a rotating shaft 3, a sleeve connected to the outer surface ofthe rotating shaft 3 through a bearing and a gear 3 symmetrically fixed on both ends of the rotating shaft 3 and meshed with a rack; and the direction adjusting device comprises a gear 4 fixed at oneend of the sleeve, a gear 5 fixed on the outer surface of the rotating shaft 3 and meshed with the gear 4, a pulley 1 fixed on the rotating shaft 3, and a locking mechanism fixed on the rotating shaft3 between the gear 4 and the pulley 1. The invention not only saves manpower, but also realizes the supine movement of the waist of the user with the turning back and forth of the rotating plate by the leg pedal, thereby facilitating the waist movement.

The invention relates to a replaceable CPU module device of a desktop computer, comprising a system control module board, a CPU module board and a radiation device, wherein a second bus connector of the CPU module board is a golden finger joint extending from the CPU module board and is arranged on a socket joint of a first bus connector of the system control module board so that the replaceable CPU module device of the desktop computer can be utilized by a user to decrease the cost burden for replacing a CPU and prolonging the life cycles of peripheral devices of the desktop computer.

The invention discloses a filter net automatic renewal device of a ceiling-type air conditioner and the air conditioner with the same. The filter net automatic renewal device comprises an air inlet grid frame, an air inlet grid, a filter net lifting assembly and filter net recovery assemblies. A hollow area for containing and assembling the air inlet grid is formed in the middle of the air inlet grid frame, and one side or the two opposite sides of the hollow area are provided with clamping positions for storing the filter net recovery assemblies. The filter net lifting assembly is arranged above the clamping positions and is in transmission connection with the filter net recovery assemblies to control rising and falling of the filter net recovery assemblies. The filter net recovery assemblies are used for controlling replacing of filter nets. According to the filter net automatic renewal device, used sterilized non-woven clothes or filter nets can be safely recovered and stored, secondary pollution of microorganisms and dust to the indoor environment is avoided, and the manual mounting period is prolonged.

The invention discloses a hard disk fault processing method and device and a distributed system. The method comprises the steps that a hard disk working state of a storage node in the distributed storage system is displayed in a human-computer interaction interface, and the hard disk working state comprises a fault state and a normal state; under the condition that the hard disk with the hard diskworking state being the fault exists in the human-computer interaction interface, a replacement instruction input by a user is received, and the replacement instruction is used for replacing the harddisk with the hard disk working state being the fault; under the triggering of the replacement instruction, an available hard disk list is displayed on the storage node; and in response to a selection instruction of a user, a target hard disk is selected from the available hard disk list, and wherein the target hard disk is used for replacing the hard disk of which the hard disk state is a faultin the storage node. The technical problems of excessive operation steps and tedious replacement caused by deleting or repairing the faulted disk when the hard disk has a fault are solved.

The invention relates to a variable combined encryption lock, belonging to the technical field of encryption lockset structures. The variable combined encryption lock comprises a lock body and lock cylinders, and is characterized in that 2-6 lock cylinders are connected in series in the lock body; a marble spring and a marble are arranged in each lock cylinder respectively; the head end of the lock body is provided with a lock cylinder end, and one end of a first lock cylinder is connected with the lock cylinder end; the tail end of the lock body is provided with a lock cylinder tail, and one end of a tail end lock cylinder is connected with the lock cylinder tail; a lock body back cover and a copper sleeve are sleeved on the lock cylinder tail, and the contact surface of the copper sleeve is contacted with the contact surface of the lock body back cover; the lock cylinder tail is provided with a fixing groove, and a spring ring is buckled into the fixing groove on the lock cylinder tail to fix the relative positions of the copper sleeve, the lock body back cover and each lock cylinder in the lock body; the lock body back cover is fixed together with the lock body through a screw; a decorating sleeve is sleeved at the head end of the lock body; a drilling-resistant sheet is arranged in the decorating sleeve. A lock cylinder portion consists of the lock cylinder end, the lock cylinders and the lock cylinder tail, and the internal structure of the lock can be changed by replacing assemblies or changing the positions of the assemblies, thereby changing the internal structure of the lock and fulfilling the aim of replacing with a new lock. The variable combined encryption lock is convenient and practical.

The present invention provides a medical infusion support capable of reminding patients to replace infusion, and relates to the technical field of medical device machinery. The medical infusion support capable of reminding patients to replace infusion comprises a machine body outer shell, a telescopic rod is fixedly connected to an interior of the machine body outer shell, a first spring is fixedly connected to a bottom part of a supporting rod, an electromagnet is movably connected to a bottom part of one end, close to the telescopic rod, of the supporting rod, and a magnetic pole ball is fixedly connected to a bottom part of the electromagnet. The supporting rod is tilted through gravity of a liquid bag, when dosage of liquid is about to be infused up, the supporting rod returns to an original position to make contact with the electromagnet, the electromagnet and the magnetic pole are used in cooperation to drive gears to rotate, therefore a scale box on an outer side of the machinebody outer shell is changed, an effect of reminding patients to replace infusion is achieved, through cooperation use of a compression rod and a sliding block, when the liquid is reduced, the supportis compressed, and an effect of conveniently replacing infusion is achieved.

The invention discloses a hydraulic hoisting device for replacing a pipe column and a wellhead part. The hydraulic hoisting device is provided with a hoisting system and a connecting mechanism, wherein the hoisting system is connected with a wellhead device to be replaced through the connecting mechanism; the hydraulic hoisting device further comprises a pipe column locking device which is mainly used for locking a downhole pipe column connected with the wellhead device; a method comprises the following steps: 1) mounting the hoisting system; 2) detaching the wellhead device; 3) assembling a wellhead four-way joint. By adopting the hydraulic hoisting device for replacing the pipe column and the wellhead part, wellhead replacement is carried out, and a pipe arrangement step is saved; the downhole pipe column only needs to be partially lifted, and then the downhole pipe column is locked by utilizing the matched pipe column locking device; then the whole weight of the downhole pipe column is transferred to an outer pipe, so that a wellhead can be replaced under the condition that the whole downhole pipe column is not detached, and furthermore, the working efficiency of wellhead maintenance work is effectively improved, and the maintenance time is reduced; the time consumption in a replacement process is only no more than 25 percent that of the prior art.

The invention relates to the technical field of drum brakes, and discloses a drum brake shoe with a friction plate convenient to replace. The drum brake shoe with the friction plate convenient to replace comprises a drum shell, wherein a fixing plate is fixedly installed inside the drum shell; a back plate is fixedly installed on the back surface of the drum shell; pressing pins symmetrically distributed on the left and right are fixedly installed on the front surface of the back plate; brake shoes symmetrically distributed on the left and right are movably installed on the outer sides of thetwo pressing pins; wheel cylinders located on the opposite sides of the two brake shoes are fixedly arranged on the front surface of the back plate; supporting pins located on the back surfaces of thetwo brake shoes are fixedly arranged on the front surface of the back plate; and a supporting plate located on the back surfaces of the brake shoes is fixedly arranged on the front surfaces of the supporting pins. The drum brake shoe with the friction plate convenient to replace has the advantages of being convenient for replacing the friction plate and the like, and solves the problem in the prior art that the friction plate is replaced only by dismounting a collar shoe and a slave shoe due to the fact that the friction plate is fixed between the collar shoe and the slave shoe.

The utility model relates to the field of environmental protection, and discloses a purification treatment device for particulate matters in steam, which comprises a bottom plate and a filter pipe, the left end of the filter pipe is fixedly connected with a connecting pipe, the right end of the filter pipe is provided with a cooling box, and the right end of the cooling box is provided with a water storage tank. The bottom end of the water storage tank is fixedly connected with the top end of the bottom plate, a filtering mechanism is arranged in the filtering pipe and comprises a storage box, the bottom end of the storage box is fixedly connected with the top end of the filtering pipe, a replacement box is fixedly connected to the bottom end of the filtering pipe, and a replacement assembly is arranged in the filtering pipe. And the replacement assembly comprises an air pressure bin, the air pressure bin is formed in the inner wall of the filter pipe, and the inner wall of the filter pipe is rotationally connected with a rotating shaft. According to the utility model, through the arrangement of the filter mechanism, after the filter plate is completely blocked, the movable frame can be driven to start the replacement assembly under the action of pressure, so that the effect of replacing the filter plate is achieved.

The invention discloses a welding mechanical arm with a replaceable electric welding head. The welding mechanical arm comprises a base and an inclined arm, and a supporting plate is welded on the sideface of the base; a first connecting block is fixedly connected with the side face of the supporting plate, and a connecting shaft is fixedly connected with the side face of the first connecting block; a movable rod is connected with the surface of the connecting shaft through a shaft; the surface of the movable rod is sleeved with a lantern ring, and a limiting clamp is welded at the bottom of the lantern ring; a transmission disc is installed in the limiting clamp in a fitting mode, and a first transmission rod penetrating through the first connecting block is fixedly connected with the surface of the transmission disc; and a convex block is fixedly connected with the bottom of the transmission disc. Through arrangement of a clamping device, when the welding head needs to be replaced, only a second threaded rod needs to be rotated, and then a pushing rod is driven by the second threaded rod to move towards the side face and apply pushing force to a folding block, so that the foldingblock is unfolded towards the two sides; and under the action of the folding block, two sets of clamping rings can be separated from the interior of a second limiting disc, and replacement of the welding head is achieved.

The invention discloses an LED street lamp device with a quick cooling function. The LED street lamp device comprises a lamp cap, a circuit board and a bracket, wherein the lower end of the lamp cap is connected with a lamp body; the lower end of the lamp body is provided with a lamp skirt; the lower end of the lamp skirt is provided with a lampshade; the lower end of the circuit board is fixedlyprovided with an LED lamp; the center of the circuit board is provided with a first fastening bolt; and the bracket is connected with the lamp cap through a second fastening bolt. The LED street lampdevice with the quick cooling function is provided with the lamp body, the lamp skirt, the LED lamp and the first fastening bolt, during use, the lamp body and the lamp skirt are mounted through the first fastening bolt, a distance is reserved between the lamp body and the lamp skirt, the length of an LED is greater than the distance between the lamp body and the lamp skirt, and the certain lengthof the LED needs to be reserved in the lamp skirt, so that the LED lamp between the lamp body and the lamp skirt can be well exposed outside; and wind in air flows through the position between the lamp body and the lamp skirt, so that the purpose of quickly cooling the LED lamp is achieved.

The invention discloses a new working head structure of a drilling machine, which is composed of a connecting shaft, a rotating shaft box, a bearing seat, a rotating shaft, a turnbuckle bolt and a drill device. The connecting shaft is fixedly connected to the rotating shaft box, and the two sides of the rotating shaft box are respectively The bearing seat is symmetrically arranged, and the rotating shaft is fixedly connected to the bearing seat. The drill device is movably connected to the rotating shaft through the flower basket bolt. The upper part of the drill device is connected with the flower basket bolt. The lower part is fixedly connected with a drill bit. In the present invention, a plurality of connecting drill bit devices and an easy-to-disassemble structure are arranged on the rotating shaft to quickly replace the drill bit and improve labor efficiency, and the structure is simple, easy to realize, convenient and efficient.

The invention relates to a variable combined encryption lock, belonging to the technical field of encryption lockset structures. The variable combined encryption lock comprises a lock body and lock cylinders, and is characterized in that 2-6 lock cylinders are connected in series in the lock body; a marble spring and a marble are arranged in each lock cylinder respectively; the head end of the lock body is provided with a lock cylinder end, and one end of a first lock cylinder is connected with the lock cylinder end; the tail end of the lock body is provided with a lock cylinder tail, and one end of a tail end lock cylinder is connected with the lock cylinder tail; a lock body back cover and a copper sleeve are sleeved on the lock cylinder tail, and the contact surface of the copper sleeve is contacted with the contact surface of the lock body back cover; the lock cylinder tail is provided with a fixing groove, and a spring ring is buckled into the fixing groove on the lock cylinder tail to fix the relative positions of the copper sleeve, the lock body back cover and each lock cylinder in the lock body; the lock body back cover is fixed together with the lock body through a screw; a decorating sleeve is sleeved at the head end of the lock body; a drilling-resistant sheet is arranged in the decorating sleeve. A lock cylinder portion consists of the lock cylinder end, the lock cylinders and the lock cylinder tail, and the internal structure of the lock can be changed by replacing assemblies or changing the positions of the assemblies, thereby changing the internal structure of the lock and fulfilling the aim of replacing with a new lock. The variable combined encryption lock is convenient and practical.

The invention relates to a laser welding fixing tool capable of adapting to various bio-oil tanks. The laser welding fixing tool comprises a detachable worktable, a supporting frame, a bottom tank fixing ring, corner cylinders and a cushion block. During use, a bottom tank of the oil tank is placed on the bottom tank fixing ring and is supported through the cushion block, then an oil tank upper cover is correspondingly arranged on the bottom tank, afterwards, the corner cylinders are rotated by 90 degrees, the oil tank upper cover and the bottom tank are fixed, and a welding head for laser welding is controlled to weld the oil tank upper cover to the bottom tank along the outer side of the oil tank according to mark points. When different types of oil tanks need to be welded, only two oilpipes at the bottom end of a tool table need to be demounted, then a corresponding tool table can be rapidly replaced, and fast demounting and fast changing of the tool table are achieved; the supporting frame can also be directly matched with a bottom tank fixing frame for adjustment, oil tank tool replacing is achieved, the tool changing efficiency is improved, and therefore the oil tank weldingquality and efficiency are improved effectively.

The invention relates to a bulletin board, in particular to a slidable replacement bulletin board in the Department of Cardiology. The technical problem to be solved by the present invention is how to design a slidable replacement bulletin board in the Department of Cardiology that can easily replace the propaganda content. In order to solve the above-mentioned technical problems, the present invention provides such a slidable replacement bulletin board in cardiology department, which includes: a frame body, the lower part of which is hingedly connected with a first bracket and a second bracket, and the first bracket and the second bracket are connected Two writing boards are arranged, and the two writing boards are respectively connected on both sides of the frame body; the replacement device is arranged on the frame body; the reset device is arranged on the frame body. The beneficial effects of the present invention are: the present invention can place publicity posters by replacing the device, so as to achieve the function of publicity columns.

The invention relates to the technical field of garment equipment, and discloses a clothing perforating device with a replaceable needle head. The device comprises a shell and a working platform, a metal block is fixedly connected to the interior of the shell, a metal ball is slidably connected to the bottom of the metal block, a first push block is fixedly connected to the surface of the metal ball, a first long rod is rotationally connected into the shell, and a first notch is formed in the surface of the first long rod. According to the clothing perforating device with the replaceable needle head, the metal ball makes contact with the metal block by pressing the first push block, electromagnetic devices attracts first magnetic blocks to drive second push blocks to slide, the first magnetic blocks drive the second push blocks to be disengaged from third notches, a first driving shaft drives an inner wheel and a tool changing device to rotate, when a tool bit on the tool changing device rotates to the middle of the bottom of the shell, a third magnetic block in the shell pushes a second magnetic block to drive the tool bit to move, clothes on the working platform are perforated, and therefore the effect of replacing the needle head is achieved.

The invention discloses a medical efficient sterilization mask and a manufacturing method thereof, relates to the technical field of masks, and achieves the purpose of replacing a filter element, the technical scheme is characterized in that the medical efficient sterilization mask comprises a mask body and annular hanging ropes arranged at the two ends of the mask body, and the mask body is provided with a breather pipe communicating air on the two sides of the mask body; an air filter element is arranged in the vent pipe, when the mask is brought to the face of a person, a plurality of stop levers for limiting the air filter element from moving out of the vent pipe are arranged at the end, away from the face, of the vent pipe, and a sealing plate for sealing a pipe opening of the vent pipe is hinged to the end, away from the stop levers, of the vent pipe. A first limiting piece for limiting the air filter element in the ventilation pipe is arranged on the sealing plate, a plurality of ventilation holes are formed in the sealing plate, and a second limiting piece for limiting the position of the sealing plate is arranged on the ventilation pipe.

The present invention provides a picture processing method, a sending method, a processing device, and a sending device, wherein the picture processing method includes: a terminal extracts a predetermined image displayed on a first picture in the terminal; the terminal acquires a second picture; the terminal acquires a second picture; The terminal combines the predetermined image and the second picture into one picture. The present invention solves the problem in the related art that it is impossible to change the picture background randomly, and further achieves the effect of randomly changing the picture background.

The invention provides a meat mincing device with a blade convenient to replace. The meat mincing device structurally comprises a box body, a motor, a material supporting disc, a discharging pipe, a meat mincing pipe, a discharging hole piece, a protective cover, a rotating shaft, a blade groove, the blade and a material pushing piece. According to the meat mincing device with the blade convenientto replace, minced meat is squeezed out through holes of meat outlet pieces, the meat outlet pieces are placed at an outlet of the meat mincing pipe and covered with the protective cover, a switch isturned on, objects are placed on the material tray and sequentially enter a feeding pipe, the objects enter the meat mincing pipe through the feeding pipe, the motor controls a rotating rod to rotate, the material pushing piece on the rotating rod drives the objects to be pushed forwards to make contact with the blade, the blade rotates to start meat mincing work, after meat mincing is completed,the blade is extruded forwards to flush the meat mincing pipe through the hole in the meat outlet piece to be extruded out till all the objects are extruded out, the switch is turned off, cleaning can be started if the rotating rod needs to be separated from the motor, and the effect of convenient cleaning is achieved.

The invention discloses a method beneficial to replacement of a mine feeding well shaft sleeve. Comprising a plurality of shaft sleeves, a flange assembly, a feeding well feed port sleeve fixing device and a feeding well discharge port sleeve fixing device. After the feeding well reaches a certain service life, the shaft sleeve is connected with a new shaft sleeve in unit length at the feeding port through the flange assembly, then the fixing device at the feeding port of the feeding well and the fixing device at the discharging port are opened, the shaft sleeve gradually falls to the underground storage bin under the gravity action of the shaft sleeve, and the shaft sleeve is fixed to the feeding port of the feeding well. The bottommost section of the original shaft sleeve is disassembled in the storage bin, and the two fixing devices are operated to fix the shaft sleeve again at the same time, so that the replacement operation of the shaft sleeve part is completed, and the operation is circulated until the replacement of the whole shaft sleeve is completed. The service life of the feeding well is prolonged, a large amount of manpower and material resource investment and resource waste are reduced, and sustainable development is achieved.

The invention discloses a landscaping ceiling of a clean corridor of an operating room. The landscaping ceiling comprises an arc-shaped box, a light emitting part, a connector and an arc-shaped PE (polyethylene) ceiling, wherein the middle of the arc-shaped box is high; two ends of the arc-shaped box are low; the bottom of the arc-shaped box is opened; the light emitting part is fixed on the inner top surface of the arc-shaped box; the connector is fixed on the opened portion of the arc-shaped box; the arc-shaped PE ceiling is detachably arranged in the connector; the middle of the arc-shaped PE ceiling is high; two ends of the arc-shaped PE ceiling are low; and landscaping patterns are arranged on the arc-shaped PE ceiling. The landscaping patterns are arranged on the arc-shaped PE ceiling; the clean corridor of the operating room has a natural, harmonious and peaceful space atmosphere by illumination of the light emitting part arranged in the arc-shaped box; and the landscaping ceiling of the clean corridor of the operating room not only can improve the medical environment, but also facilitates physical rehabilitation of patients.

The invention relates to the technical field of crushers, and discloses a crusher main shaft cutter replacement and heat dissipation auxiliary device. The device comprises a machine shell and a blade, a first sealing shell is fixedly connected to the interior of the machine shell, a first long rod is slidably connected to the interior of the first sealing shell, and a control rod is rotatably connected to the bottom of the first long rod; and a first stop block is slidably connected to the surface of the control rod, a first push rod is arranged at the bottom of the control rod, and a fixing rod is slidably connected into the first push rod. According to the crusher main shaft cutter replacement and heat dissipation auxiliary device, the blade drives the first push rod to slide through the first long rod, the fixing rod is clamped in a notch, the first push rod drives a movable rod through a first push block to upwards extrude an electrorheological body, and the electrorheological body drives a positioning rod and a second long rod to fix the blade; and when the blade is pressed downwards again, the first push rod rotates to separate the fixing rod from the notch, so that the blade is separated from the interior of the machine shell, and the effect of replacing the blade is achieved.

The invention discloses a novel needle selection method for a glove machine. The pogo pins of the glove machine are screened by a needle pressing mechanism on the machine head of the glove machine to realize a specific working mode of the glove machine. After the magnetic bar made of magnetic material is magnetized The strong residual magnetic field can absorb the pressed pogo pin, and the magnetic bar made of magnetic material will disappear after the reverse magnetization, so that the pogo pin cannot be attracted. The present invention conveniently selects the needle group by magnetizing or demagnetizing the magnetic rod, without replacing or adjusting the mechanical structural parts, so as to achieve the purpose of changing the glove pattern. Exchange the positive and negative poles to magnetize or demagnetize the magnetic bar.

The utility model provides a wireless temperature and moisture detection sensor, which relates to the technical field of detection sensors and comprises a metal die casting, a sealing ring is fixed at one end of the metal die casting, a bump is fixed at the bottom of the metal die casting, a seamless tube is fixed at the bottom of the bump, a screw tube is arranged in the seamless tube, and the screw tube is connected with the metal die casting. A screw rod is embedded into the screw pipe and is in threaded connection with the screw pipe, a moving part is arranged at the bottom of the seamless pipe, one end of the screw rod penetrates through the seamless pipe and is fixedly connected with one end of the moving part, a threaded pipe is embedded into and fixed to one end of the moving part, and a threaded hollow pipe is embedded into the threaded pipe and is in threaded connection with the threaded pipe. According to the utility model, the motor drives the screw rod to rotate, the screw rod rotates to drive the screw tube to move in the seamless tube, and the screw tube moves to drive the moving part to move, so that the effect of increasing the length of the temperature detector can be achieved, the effect of increasing the detection depth of the temperature sensor can be achieved, and the detection accuracy can be improved.

The invention relates to the technical field of surgical instruments for the general surgery department, and discloses a hemostasis device for the general surgery department, which comprises two swing rods, the back surface of the front swing rod is rotatably connected with the front surface of the back swing rod, the top end of each swing rod is movably connected with a forceps head, and a positioning piece is arranged between each forceps head and the corresponding swing rod. The bottom end of the swing rod is movably connected with a handheld part, the interior of the swing rod is rotationally connected with a frame rod extending into the handheld part, the handheld part is provided with a limiting part, the bottom end of the tong head extends into the swing rod, and an inserting groove matched with the tong head is formed in the swing rod. The hemostasis device for the general surgery department has the advantages that parts can be replaced and the like, and the problems that in the prior art, after hemostasis forceps for the general surgery department are used for a period of time, the clamping heads and the positioning toothed plates are prone to abrasion, the clamping hemostasis effect is poor, the parts of the hemostasis forceps cannot be replaced, and the practicability is poor are solved.

The invention relates to the technical field of heat exchangers, and discloses an adaptive high-efficiency heat exchanger capable of replacing the heat exchange medium on-line, including a heat exchanger body, and the left side of the heat exchanger body is provided with a first medium switch As for the control box, the first medium converter is fixedly connected to the left side of the first medium opening and closing control box. The self-adaptive high-efficiency heat exchanger that can replace the heat exchange medium on-line is equipped with the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the first opening and closing plate, the second opening and closing plate, the second Three-pass closing plate, fourth pass-closing plate, first driving gear, second driving gear, third driving gear, fourth driving gear, first driven gear, second driven gear, third driven gear, third driven gear Four driven gears, the first driven shaft, the second driven shaft, the third driven shaft and the fourth driven shaft, by turning the first drive shaft, it solves the problem of time-consuming and labor-intensive replacement of the medium in the current heat exchanger The problem.

The invention discloses an improved structure of a diverting valve. The improved structure comprises a diverting valve body and multiple flow channels; the diverting valve body comprises an accommodating chamber and multiple channels; the multiple channels communicate with the accommodating chamber; the number of the multiple flow channels corresponds to the number of the multiple channels; each flow channel comprises a connecting part, a valve seat ring and a valve seat, the valve seat is arranged in the corresponding channel and is next to the diverting valve body, the valve seat ring is arranged on the valve seat, and the corresponding flow channel is connected to the channel through the connecting part. Thus, the purpose of improving the convenience of mounting and dismounting operations can be achieved really.