38results about How to "Guaranteed disassembly" patented technology

A closing link for a bicycle chain that includes a first outer link plate having a first elongated hole and a first chain pin extending therefrom and a second outer link plate having a second elongated hole and a second chain pin extending therefrom. The first chain pin is received in the second elongated hole and the second chain pin is received in the first elongated hole Each chain pin has a head at one end, a foot at the other end and a groove therebetween. Each elongated hole has a larger diameter end, a smaller diameter end and a displacement region therebetween. The larger diameter end has a diameter larger than a diameter of the pin head. The smaller diameter end receives the groove of the chain pin and includes a countersink to receive the pin head. The displacement region includes sides having recessed and unrecessed portions. The recessed portions have a smaller depth than a depth of the countersink at least in the region of the countersink.

The invention relates to a device (2) for sealing and evacuating or applying gas pressure to a paste-like liquid in a container, the interior chamber thereof having a cylindrical inner contour (12). Said device comprises: a seal (8) which is arranged on a circumference of the device (2) and is adapted to be inserted into the cylindrical inner contour (12) of a container in order to seal the circumference of said container, and which delimits the exterior (18) of the device (2) from the interior (20) of the device; a connection device (22) which is arranged on the exterior (18) of the device (2) and which is configured for connecting an evacuation pump; and an open-pored, porous wall (24) in the interior of the device (2), said wall having a conduit connection (25) to the connection device (22).

Turbocharger comprising a shaft, a housing, a turbine wheel and a compressor wheel mounted onto the shaft, at least one rolling bearing located between the shaft and the housing and comprising an inner ring, an outer ring and at least one row of rolling elements between raceways provided on the rings.Said turbocharger comprises at least one intermediate sleeve radially located between the shaft and the inner ring of the rolling bearing.

The invention discloses a self-climbing operation platform for a hoistway. The self-climbing operation platform comprises a tower body system and a wall attaching system; the wall attaching system comprises two attaching mechanisms vertically fixed to the two adjacent sides of the elevator hoistway; the tower body system comprises a top work mechanism, a tower body and a bottom drive mechanism which are sequentially and fixedly connected from top to bottom; and the tower body is in vertical sliding connection with the two attaching mechanisms at the same time. The operation platform comprises the tower body, the two attaching mechanisms fixed in the hoistway and the bottom drive mechanism arranged at the lower portion of the tower body. The tower body is connected with a guide rail frame at different heights by dismounting and mounting the attaching mechanisms to the guide rail frame, the purpose of self ascending and descending in the hoistway is finally achieved, and the construction work requirement is met. The multiple construction problems that at present, an operation construction platform in the hoistway is difficult to erect, and material transportation is difficult are solved.

The invention relates to a modular finished product partition system. The modular finished product partition system is characterized in that a steel adjusting base is connected with a main building floor through expansion bolts, and the upper top face of the steel adjusting base is adjusted to be in the ground horizontal line; a lower groove integrated aluminum alloy baseboard is connected with the steel adjusting base; a steel upper groove is connected with a grid hanging upside down through tapping screws and is adjusted to be in a top face locating line; an L-shaped steel panel fastener is connected with a finished product veneer through tapping screws and fastened into a hole portion prefabricated in a steel main keel; an L-shaped steel glass frame fastener is connected with an aluminum alloy frame through self-plugging rivets, a glass panel is combined into a whole through a prefabricated groove portion and fastened into the hole portion prefabricated in the steel main keel through the L-shaped steel panel fastener; and an aluminum alloy door cheek is meshed with a concave-convex portion fabricated in the steel main keel through a prefabricated concave-convex portion, and then fixed through tapping screws. The modular finished product partition system solves the problems of manual coarseness and inaccuracy in traditional decoration and reduces the thickness of a wall.

The invention discloses a mounting and dismounting device for a wind driven generator coupler. The mounting and dismounting device comprises a carrying platform mechanism and a height adjustment mechanism, wherein the carrying platform mechanism is used for carrying the coupler to be mounted or dismounted; and the height adjustment mechanism is fixed below the carrying platform mechanism and used for adjusting the level of the carrying platform mechanism to facilitate mounting or dismounting of the coupler. The device has the advantages that the device is simple and compact in structure and convenient to use and operate, and can reduce working strength and risks, and the couplers in different specifications can be quickly and precisely mounted or dismounted.

The invention discloses novel polyvinyl chloride (PVC) mother solution treatment method. The PVC mother solution is passed through a primary cooling and a secondary cooling to an anaerobic pool and an aerobiotic pool to apply biochemical treatment, then the product is put into a coagulating sedimentation pool to settle the sludge, at last, the product is filtered by submerged ultrafiltration, so as to produce the qualified water. The novel PVC mother solution treatment equipment has a good water treatment effect and high operating stability, can be used for effectively treating the PVC mother solution for a long time, and is relatively low in operating cost and high in quality of output water.

The invention provides a hub-shaped cutter and a cutting device which is a two-axle opposite type with an opposite positioned main axles assembly, remaining the assembly-disassembly character of the hub-shaped cutter, and decreasing the space of the opposite positioned hub-shaped cutters to the best of it's abilities.The hub-shaped cutters(60) are mounted on each main axle (52) of two group of main axle assemblies (51), wherein the two group of main axle assemblies are disposed approximately coaxially and can move in the axial direction.A blade (62) is provided at the peripheral portion of one lateral side of the base station (61), and the other lateral side thereof is provided as a screw seat surface (61c).The screw seat surfaces (61c) face to each other, and the cutter is fixed to the main axle (52) by fastening the fixation nut (55) on the screw seat surface (61c).A concave portion (63) is provided on the screw seat surface (61c) of the base station (61) to back off the surface fixing the nut (55).

The invention discloses a train model for a tunnel pressure wave test. The train model comprises a chassis 8 and a train body 12 installed on the chassis. Slide ways that slide on track steel ropes and enable the train model to be suspended on the steel ropes are arranged at four corners of the train body respectively. Support standing columns 10 are formed by a front support column and a rear support column that are arranged on the chassis vertically and symmetrically. An X-shaped clamp arm 9 is arranged between the front support column and the rear support column by a hinge shaft 11. On thebasis of the structure, a motor drives a traction steel rope and thus the train model is driven to complete tunnel pressure wave testing at the slide ways, so that the experiment cost is lowered. On the basis of the rapid traction and clamping structure, the clamping device is in a loosening state all the time before the motor is accelerated at a designated speed; and after the motor drives the traction steel rope to arrive at a designated speed, a wedge-shaped pressing block is loosened instantaneously and the clamping device clamps the traction steel rope instantaneously, thereby realizing high-speed starting of the train and reducing the starting accelerating speed substantially.

The invention relates to the technical field of diesel tanks, and particularly discloses an integrated diesel tank. The integrated diesel tank comprises an integrated tank body, a fuel filter, a ureatank and a pipeline valve body; the integrated tank body comprises a cylindrical structure and two end plates; openings are formed in two ends of the cylindrical structure; the two end plates are arranged on the openings in both ends of the cylindrical structure in a covering manner respectively; the integrated tank body is internally provided with an accommodating cavity for accommodating dieseloil; the side wall of the cylindrical structure is recessed to form a U-shaped groove; the fuel filter is arranged in the U-shaped groove and is connected with the wall of the U-shaped groove; the urea tank comprises a tank body and a filling port, and is arranged in the accommodating cavity; the side wall of the cylindrical structure is recessed to form an L-shaped groove; the pipeline valve bodycommunicates with the urea tank; and the pipeline valve body is arranged in the L-shaped groove and is connected with the wall of the L-shaped groove. The integrated diesel tank provided by the invention has a compact and reasonable structure, the leakage of the urea tank is avoided, an original fuel filter bracket and an original urea tank bracket are omitted, the weight and cost of the completevehicle are reduced, the size of the fuel tank is increased, and the convenience of disassembly and maintenance are ensured.

The invention relates to the technical field of anodic aluminum oxide porous membranes, in particular to an electrochemical deposition support for preparing a nano material. The support comprises a substrate, a front cover plate, a support base and a conductive assembly, the substrate is fixed through the front cover plate and the support base, the conductive assembly is arranged on the support base, the substrate is connected with the conductive assembly, and a through hole A is further formed in the front cover plate in a penetrating mode. According to the support, the structure is stable, the fixing effect of the substrate is good, the sealing performance is good, and the conductive assembly can be prevented from being corroded by an electrolyte; the whole body is of an assembly type structure, no glue or bonding structure is arranged, disassembling, assembling and parts replacement are easy, and the long-term effective use of the device is facilitated.

The invention discloses a proton exchange membrane fuel cell in the technical field of proton exchange membrane fuel cells. The fuel cell comprises a fuel cell stack, the upper end face and the lower end face of the fuel cell stack are fixedly connected with end plates, one end face of each end plate is provided with a plate body, a fan is arranged in the plate body, and a connecting mechanism is arranged between the fan and the plate body; the connecting mechanism comprises a first contact plate, a second contact plate and a connecting block, the connecting block is fixedly connected to the upper end face of the fan, the first contact plate is fixedly connected to one end face of the connecting block, the second contact plate is fixedly connected into the plate body, the connecting block is slidably inserted into the plate body, and the first contact plate and the second contact plate are in mutual contact and buckled connection. The installation efficiency is high, additional wiring operation does not need to be conducted on a wiring part in the disassembly and assembly process, the maintenance operation of a worker on the fan can be greatly improved, circuit connection is stable and safe, and practicability is high.

The invention discloses an intelligent automobile interior environment monitoring and heat dissipating control system. The intelligent automobile interior environment monitoring and heat dissipating control system has the advantages that the limitation that existing automobile interior environment detecting technologies do not have automatic automobile interior parameter real-time monitoring functions or man-machine intelligent communication functions can be broken through by the aid of the intelligent automobile interior environment monitoring and heat dissipating control system, and the problem of incapability of automatically dissipating heat in automobile interior environments when existing automobiles are parked and stalled and are positioned under sun exposure conditions can be solved by the aid of the intelligent automobile interior environment monitoring and heat dissipating control system; multiple parameters of the temperatures, formaldehyde, CO concentration, smoke concentration and PM 2.5 (particulate matter 2.5) concentration of interior environments of an automobile can be monitored by the intelligent automobile interior environment monitoring and heat dissipating control system in real time and can be displayed by the aid of mobile phones, an alarm can be given when the CO concentration and the smoke concentration exceed standards, and heat in the interior environments can be automatically dissipated by the intelligent automobile interior environment monitoring and heat dissipating control system when the automobile is parked and stalled and is positioned under sun exposure conditions; mobile phone APP (application) and control systems with DSP (digital signal processors) as cores are combined with one another to implement a function of automatically andintelligently controlling systems, and a function of automatically dissipating the heat when the automobile is positioned under the sun exposure conditions during parking and stalling can be implemented by the aid of a miniature air conditioner, which is mounted on a foot placing location of a co-driver cab, under the control.

The invention relates to the technical field of diesel tanks, and particularly discloses an integrated diesel tank. The integrated diesel tank comprises an integrated tank body, a fuel filter, a ureatank and a pipeline valve body; the integrated tank body comprises a cylindrical structure and two end plates; openings are formed in two ends of the cylindrical structure; the two end plates are arranged on the openings in both ends of the cylindrical structure in a covering manner respectively; the integrated tank body is internally provided with an accommodating cavity for accommodating dieseloil; the side wall of the cylindrical structure is recessed to form a U-shaped groove; the fuel filter is arranged in the U-shaped groove and is connected with the wall of the U-shaped groove; the urea tank comprises a tank body and a filling port, and is arranged in the accommodating cavity; the side wall of the cylindrical structure is recessed to form an L-shaped groove; the pipeline valve bodycommunicates with the urea tank; and the pipeline valve body is arranged in the L-shaped groove and is connected with the wall of the L-shaped groove. The integrated diesel tank provided by the invention has a compact and reasonable structure, the leakage of the urea tank is avoided, an original fuel filter bracket and an original urea tank bracket are omitted, the weight and cost of the completevehicle are reduced, the size of the fuel tank is increased, and the convenience of disassembly and maintenance are ensured.

The invention belongs to the field of clinical tools, and particularly relates to a suction tube with a detachable filter element. The suction tube provided by the invention comprises a main pipe body and a filter element; the filter element comprises a filter plate, and filter holes are formed in the filter plate; one end of an elastic supporting foot is installed on the inner plate surface of the filter plate, the other end of the elastic supporting foot forms a foot end and extends towards the inner end of the main pipe body, the three or more sets of elastic supporting feet which are sequentially and evenly distributed around the axis of the filter plate are all located on the same conical surface coaxial with the axis of the filter plate and make axial projection in the axial direction of the filter plate, and when the elastic supporting feet are in the initial non-stress state, the diameter of a circle defined by the foot ends of the elastic supporting feet is larger than the pipe diameter of the main pipe body; the inner wall of the main pipe body is correspondingly provided with clamping grooves or concave pits for the foot ends of the elastic supporting feet to be clamped in. According to the invention, the drainage objects in the suction tube can be rapidly removed, and therefore the non-blocking efficient operation drainage requirement can be continuously met, and an operation can be conducted smoothly.

The invention provides a pull ring unlocking apparatus capable of being repeatedly disassembled and assembled, comprising a main body structure and a matching pull ring; a concave sliding rail is provided on the main body structure, and the sliding rail comprises a locking end and an unlocking end; a groove for locking is provided on the locking end of the sliding rail; the pull ring slides in thesliding rail, the front end of the pulling ring is provided with a curved structure toward the front end of the locking end, and one side of the curved structure is provided with a reed; and the pullring slides to the locking end in the sliding rail, the reed is locked in the groove, the pull ring slides to the unlocking end in the sliding rail, and the reed is removed from the groove and unlocked. According to the pull ring unlocking apparatus capable of being repeatedly disassembled and assembled, the pull ring can be repeatedly disassembled and assembled, other components on modules neednot be disassembled during disassembly, the disassembly and assembly is simple, and the production cost is greatly reduced.

The invention discloses an agricultural vineyard intelligent automatic picking and conveying device. The agricultural vineyard intelligent automatic picking and conveying device is composed of a grape trellis, a first arch, a second arch, a picking device, a first rack, a conveying device, a rotary belt, a first rotary belt support, a driving rotary wheel, a first motor, a driven rotary wheel, a second rotary belt support and a second rack. The grape trellis is fixed to the soil earth surface, the first arch and the second arch are placed at the two ends of the grape trellis, the middle of the first arch and the middle of the second arch are connected through the first rack and the second rack, the picking device is installed on the first rack, and through holes are formed in the first arch and the second arch to allow the rotary belt to penetrate. The agricultural vineyard intelligent automatic picking and conveying device has the advantages that grapes can be picked and conveyed to the two ends of a vineyard, the automation degree is high, and the labor intensity of a vineyard owner is relieved.

The invention discloses a line maintenance bearing support capable of stable positioning. The bearing support includes an insulating bar working head, an electricity testing head and a telescopic piece. The telescopic piece includes a bottom part cannula, an extension pipe and a positioning lever. A lower end of the extension pipe is connected to a first positioning screw thread head. The first positioning screw thread head is connected to an upper end of the bottom part cannula through screw thread matching. A lower end of the positioning lever is connected to a second positioning screw thread head. The second positioning screw thread head is connected to an upper end of the extension pipe through screw thread matching. A top end of the positioning lever recesses inwardly to constitute apositioning screw hole. The lower ends of the insulating working head and the electricity testing head are both connected to a positioning screw. The bottom part cannula is sleeved thereon with an anti-skid sleeve which is in interference fit with the bottom part cannula. According to the invention, a line maintenance bearing support can ensure extension length through the telescopic piece, and conducts electricity testing and back brake on the ground, so that the line maintenance bearing support is easy to operate and can prevent safety hazards caused by operating workers performing work by climbing the support.

The invention relates to an intelligent breeding and gestation house temperature control system. The system comprises a hot water system, a cold water system and a controller, wherein the controller is connected with an intermediate server through a CAN bus, is connected with a temperature acquisition module which is arranged in the breeding and gestation house, and is connected with a computer terminal and a cloud server through the intermediate server via Internet; the hot water system and the cold water system are connected on a spacing pen plate through pipelines; the spacing pen plate consists of a plurality of hollow galvanized steel pipes or seamless steel tubes, the plurality of galvanized steel pipes or seamless steel tubes are communicated to fill the spacing pen plate with water; the spacing pen plate is connected on a pipeline through a hose which has one end provided with a self-sealed quick coupling; and the self-sealed quick coupling is detachably clamped on the spacingpen plate. The intelligent breeding and gestation house temperature control system has the advantages that the room temperature of the breeding and gestation house can be conveniently adjusted, efficient water supply of the hot water system and the cold water system can be effectively guaranteed, and the environmental temperature in the breeding and gestation house can be shared in real time conveniently.

The invention discloses a real silk soaking trolley which comprises a soaking barrel with an open top surface, a top cover which covers the top surface of the soaking barrel and is openable, an inner barrel which is arranged in the barrel body in a sleeving manner, and moving idler wheels arranged on the bottom surface of the soaking barrel, wherein the top surface of the inner barrel is open, and the bottom surface and the side surface of the inner barrel are mesh screen surfaces; the soaking barrel comprises an upper barrel sleeving the inner barrel and a lower barrel; the bottom surface of the upper barrel is communicated with the lower barrel; the upper barrel is a hollow cylinder; the top surface of the upper barrel is open; a grid plate is arranged on the bottom surface of the upper barrel; the top surface of the lower barrel is an open flat top surface and is matched with the bottom surface of the upper barrel in size; the bottom surface of the lower barrel is an inclined plane; a liquid inlet is formed in the top end of the side wall of the upper barrel and is connected with an input pipe for externally supplying real silk soaking solution; a liquid outlet is formed in the bottom end of the side wall of the lower barrel and is connected with an output pipe for recycling used real silk soaking solution. The real silk soaking trolley can reduce volatilization of soaking solution, transfers flexibly, simply, conveniently, quickly and efficiently, prevents soaking solution from overflowing, improves the working environment, and recycles the used real silk soaking solution to the maximum.

The invention discloses a connecting structure for a floor drain core and a floor drain body. The connecting structure comprises the floor drain body and the core; the inner wall of the floor drain body is provided with a clamping groove, the outer wall of the core is provided with a plurality of convex blocks which can be connected with the clamping groove in a clamped mode, an isobathic annular groove is adopted as the clamping groove, and upper notches are formed in the positions, corresponding to the convex blocks of the core, of the upper portion of the annular groove; the height of the two ends of each convex block is smaller than that of the middle of the convex block. The connecting structure for the floor drain core and the floor drain body has the advantages that disassembly and assembly are convenient, no influence can be caused to water entry of the floor drain core, and the structure is simple and practical.

The invention relates to wind-induced vibration energy collectors, in particular to a wind-induced vibration energy collector based on multi-cylinder wake excitation. The wind-induced vibration energy collector is applicable to low-power electronic equipment such as a sensor which needs to acquire energy from an external environment and comprises external frame columns, a central cylinder, piezoelectric transducers, connecting springs and frame rods. The wind-induced vibration energy collector is characterized in that wind load in an environment acts on the external frame columns, airflow is separated on the surfaces of the external frame columns and generates alternating-falling vortexes at the tails of the external frame column, the central cylinder vibrates under the action of the wake of the frame columns, the vibration of the cylinder drives arc-shaped metal sheets to deform, and piezoelectric elements adhered to the arc-shaped metal sheets deform and polarize to externally output voltage. The wind-induced vibration energy collector has the advantages that the wind energy collector formed by the internal central cylinder and the external frame columns surrounding the central cylinder is simple and compact in structure, easy in encapsulation, capable of collecting the wind energy of different wind speeds and different wind directions, and capable of greatly increasing energy utilization rate and collector output power.

The invention provides a 5G hydraulic electromagnetic circuit breaker. The circuit breaker comprises a shell, an unlocking mechanism, a tripping mechanism, a moving contact, a static contact and an arc extinguishing chamber, the unlocking mechanism, the tripping mechanism, the moving contact, the static contact and the arc extinguishing chamber are arranged in the shell, a moving contact point isarranged on the moving contact, and a static contact point is arranged on the static contact; the unlocking mechanism is adjacent to the tripping mechanism and can drive the tripping mechanism to rotate; the tripping mechanism is hinged with the moving contact, and when the tripping mechanism rotates, the moving contact rotates along with the tripping mechanism to drive the moving contact to be incontact with or far away from the static contact, so that the on-off of the circuit breaker is realized; one end of the static contact is connected with a wire inlet terminal, the middle part of thestatic contact is bent towards one side far away from the wire inlet terminal to form a U-shaped structure, and the arc extinguishing chamber is adjacent to the U-shaped structure; a static contact point is arranged on the other end of the static contact, one side of the static contact is provided with a lower arc angle which extends towards the internal direction of the arc extinguishing chamberand is used for guiding an electric arc to quickly enter the arc extinguishing chamber. The circuit breaker can rapidly eliminate electric arcs, avoids breaking delay of the moving contact and the static contact, and is simple and safe in disassembly and assembly process.

The invention discloses an axial four-side rotating mechanism for a multi-station mold, which relates to the field of injection molds, and solves the problem that a mold of a top rotating device of anexisting rotating mechanism is inconvenient to be dismounted, a bottom support structure is troublesome to adjust and tedious to dismount and mount. According to the technical scheme adopted by the invention, the axial four-side rotating mechanism comprises a top rotating device and a bottom rotating device which are respectively arranged at the upper and lower parts of a mold mounting tank, wherein the top rotating device comprises a supporting top plate, the supporting top plate is connected with a top plate connecting plate through a screw, the top plate connecting plate is divided into anupper connecting part and a lower connecting part which are connected through a screw, and the projection of the joint between the upper connecting part and the lower connecting part is located outside the supporting top plate, and a mold removal process is simple, convenient and rapid; and the bottom rotating device comprises a supporting structure, the supporting structure comprises a guide rail, a linear supporting block is arranged on the guide rail, a supporting plate is placed on the linear supporting plate, an adjusting nut is arranged on the top surface of the supporting plate, the supporting height can be conveniently, rapidly and accurately adjusted by virtue of the adjusting nut, and the dismounting and the mounting are easy.

The invention discloses a disposable meal box with a good sealing effect. The disposable meal box comprises a box body and a box cover; notches are respectively formed in each of the two sides of thebox body, fixed blocks are fixedly connected with the tops of the inner walls of the notches, a handle is movably connected between the two fixed blocks through a rotating shaft, a first sealing ringis fixedly connected with the top of the box body, a first reinforcing rib is fixedly connected with the surface of the first sealing ring, a first groove matched with the first reinforcing rib duringthe use is formed in the top of the inner wall of the box cover, a second sealing ring is fixedly connected with the bottom of the inner wall of the box cover, and a fixed groove matched with the second sealing ring during the use is formed in the top of the surface of the box body. The disposable meal box disclosed by the invention has the benefit that by matched use of the box body, the box cover, the first sealing ring, the first reinforcing ring, the first groove, the second sealing ring, the fixed groove, the second reinforcing rib and a second groove, the sealing performance between thebox body and the box cover is better ensured, so that the outflow of vegetable soup and other water substances cannot be caused, and a great convenience is brought to the daily use.

The invention discloses a mounting and dismounting device for a wind driven generator coupler. The mounting and dismounting device comprises a carrying platform mechanism and a height adjustment mechanism, wherein the carrying platform mechanism is used for carrying the coupler to be mounted or dismounted; and the height adjustment mechanism is fixed below the carrying platform mechanism and used for adjusting the level of the carrying platform mechanism to facilitate mounting or dismounting of the coupler. The device has the advantages that the device is simple and compact in structure and convenient to use and operate, and can reduce working strength and risks, and the couplers in different specifications can be quickly and precisely mounted or dismounted.

The invention provides a 5G hydraulic circuit breaker and an unlocking mechanism thereof. The unlocking mechanism comprises a push rod, a positioning piece, a linkage piece, a first elastic piece, a second elastic piece and a third elastic piece, the positioning piece is embedded in a through hole in the top of a circuit breaker shell, the positioning piece is connected with the second elastic piece, and the positioning piece can be driven by the second elastic piece to rotate; therefore, the through hole extends out of the circuit breaker shell or contracts into the circuit breaker shell. Oneend of the first elastic piece is connected with the operating end of the push rod, and the other end is connected with the positioning piece through the second elastic piece; one end of the linkagepiece is hinged to the side wall of the circuit breaker shell through the third elastic piece, and the other end of the linkage piece extends towards one side of an armature of a tripping mechanism. The operating end of the push rod abuts against the third elastic piece. The positioning piece, the linkage piece and the push rod are linked through the elastic pieces, and the circuit breaker can bedisassembled and assembled under the condition that a movable contact and a static contact are disconnected.

The invention relates to a vertical smelting furnace for continuously casting tungsten carbide, which is of a vertical structure and consists three parts, namely a feeding part, a heating part and a cooling part, wherein the feeding part is used for providing a mixture of tungsten powders and tungsten carbide powders for the heating part; an inner step is arranged in a heating pipe of the heatingpart; a graphite funnel is arranged on the inner step and is provided with a lining with exhaust holes; the mixture is heated in the funnel to form a cast tungsten carbide solution in a WC+W2C eutectic structure, and the solution continuously drops to the cooling part; the cooling part is of a double-cooling structure consisting of a cooling air pipe and a bucket-type water cooling jacket or is in a direct water cooling structure; and the cooling part is used for quickly cooling the solution dropping from the heating part to a process temperature and conveying the solution outside the furnace. The smelting furnace has the advantages of high cooling speed, low degree of oxidation for materials, low energy consumption, high yield and continuous production and operation. In addition, the graphite funnel is provided with the lining with the exhaust holes, so that the heating pipe is prevented from being adhered with the graphite funnel, and the graphite funnel is convenient to be disassembled from the heating pipe.