1804 results about "Screw joint" patented technology

The invention relates to the technical field of sleeve joint structures, and discloses an oil sleeve air-tight seal buckle structure which comprises two oil sleeve bodies and a joint pipe fitting, external threads are arranged on the outer sides of the connecting ends of the two oil sleeve bodies, and internal threads matched with the external threads are arranged on the inner sides of the two ends of the joint pipe fitting. After the opposite end faces of the two oil casing bodies abut against each other, the oil casing further comprises port clamping pieces detachably arranged at the two ends of the connector pipe fitting. According to the air-tight seal buckle structure of the oil sleeve, the port clamping pieces generate fastening force when being installed at the two ends of the connector pipe fitting, the end of the oil sleeve body is further fastened, and axial relative sliding between the oil sleeve body and the connector pipe fitting is limited. In the installation process of the port clamping piece, the load sharing piece is driven to move in the radial direction of the oil sleeve body and abut against the peripheral wall of the oil sleeve body, an auxiliary supporting structure is formed between the peripheral wall of the oil sleeve body and the inner wall of the connector pipe fitting, and stress concentration of threads on the oil sleeve body and the connector pipe fitting is reduced.

The utility model relates to the field of corrugated pipes, in particular to a corrugated hose for fuel gas, which comprises a corrugated pipe sleeved with a corrosion-resistant metal mesh layer. According to the corrugated hose for the fuel gas, the corrugated pipe, the first threaded connector, the limiting groove, the adapter, the second threaded connector, the first sealing ring, the second sealing ring, the outer cylinder, the elastic piece, the limiting block and the outer nut are arranged, and the adapter is in butt joint with the corrugated pipe; an outer cylinder outside the adapter, an elastic piece and a limiting block extend into a limiting groove in the first threaded connector, the limiting block can be clamped in the limiting groove to form clamping butt joint, then the corrugated pipe and the adapter are in threaded connection by rotating an outer nut outside the adapter, and meanwhile the sealing effect is achieved through the arrangement of a first sealing ring and a second sealing ring; the connection mode enhances the firmness and the sealing performance between the two parts.

The invention belongs to the technical field of make-up torque calculation, and discloses a casing direct connection screwed joint make-up torque prediction method, through an empirical formula formed by fitting of a structural mechanical model and test data, the casing direct connection screwed joint make-up torque can be calculated directly by measuring steel pipe basic structure parameters, repeated tests are not needed, and the prediction accuracy is high. And the working efficiency is greatly improved. The prediction process only depends on basic structure parameters capable of being rapidly measured and is not limited by working conditions. A fitting formula comes from verification of a large amount of test data and theoretical models, and precision and universality are both considered; and multi-parameter factor comprehensive modeling is adopted, errors caused by a single factor are effectively eliminated, the accuracy of a prediction result is high, and the stability and reliability of torque prediction are improved. By reasonably predicting the screwing-on torque, the connection strength of the steel pipe is effectively guaranteed, and underground potential safety hazards caused by improper screwing or excessive screwing are avoided, so that the integrity of a shaft structure and the safety of construction operation are guaranteed.

The invention relates to the technical field of conveyors, in particular to a wine brewing raw material conveying device which comprises a spiral conveying plate, the spiral conveying plate is arranged on a shaft body of a rotating shaft, the rotating shaft is rotationally connected between a first conveying machine shell and a second conveying machine shell, and flange plates are fixed to one end of the first conveying machine shell and one end of the second conveying machine shell. Two flange plates are arranged on the conveying machine shell I, screw joint handles are fixed to the outer ring surfaces of the flange plates, the screw joint handles are semi-cylindrical, after the two flange plates abut against each other, the two screw joint handles are spliced to form a stud, the stud is sleeved with a screw joint sleeve in a screw joint mode, a feeding hopper is installed on the surface of the conveying machine shell II, and a discharging pipe is installed on the surface of the conveying machine shell I; the wine brewing raw material conveying device has the beneficial effects that the wine brewing raw material conveying device has the beneficial effects of quick assembly and firm connection, convenience in disassembly and thorough cleaning, heating, heat preservation, vibration cleaning, convenience in field transfer and the like, and the conveying efficiency of wine brewing raw materials and the maintainability of equipment are remarkably improved.

The invention discloses a leakproof high-pressure-resistant socket screwed joint and an aging detection device, and relates to the technical field of pipeline physical detection, the leakproof high-pressure-resistant socket screwed joint comprises a composite pipe, the outer wall of the composite pipe is provided with a socket joint, the socket joint comprises an injection molding flange, the injection molding flange is of an annular structure, the injection molding flange is fixedly connected to the outer wall of the composite pipe, and the outer wall of the composite pipe is fixedly connected with the socket joint. One side of the injection molding flanging is in contact with a sealing ring, the injection molding flanging and the sealing ring are used for sealing the interior of the composite pipe, and the bell and spigot joint is arranged, so that the composite pipe and the injection molding flanging at the end injection molding part are combined into a whole in an injection molding mode, and compared with a traditional flanging mode, the wear-resisting performance is not poor, and the wear-resisting performance is good. Similarly, only the wear-resistant material is in contact with the conveying medium, the phenomena that the sealing is not tight enough and the medium layer crossing phenomenon possibly occurs due to the fact that the edge of an existing flanging flange mode possibly warps are avoided, the use stability is greatly improved, and the service life is greatly prolonged.

The utility model discloses a scrubber large roller assembly with an oblique movement function, which comprises a floor brush lower shell, a limiting groove body arranged on the rear side of the floor brush lower shell, a mounting cavity arranged in the floor brush lower shell, an air suction channel and a rolling brush assembly arranged in the mounting cavity, a rotating piece arranged in the limiting groove body, a large roller connected to the rotating piece, and a rolling brush arranged on the rolling brush assembly. Small rollers are arranged on the front side of the bottom of the floor brush lower shell; the floor brush upper shell is provided with a connecting lug and a limiting arc-shaped plate, the connecting lug abuts against the limiting groove body, and the limiting arc-shaped plate is located above the rolling brush assembly. During use, the connecting shaft moves in the limiting notch in a limiting manner under the rolling of the large roller, the second bearing rolls on the rolling surface in the limiting groove body, so that the first bearing is driven to rotate on the screw joint groove body, and the other end of the connecting shaft is connected to the shaft clamping ring on the large roller; the structure can reduce the oblique slipping of the large roller and reduce the resistance, so that the floor brush is more flexible to operate.

The invention relates to the technical field of mining machinery, and discloses a portable drilling device for ground source heat energy construction, comprising: a frame of a movable structure; the screwed joint is rotationally mounted on the frame, external threads are arranged on the outer side of the screwed joint, and slurry flows in the screwed joint; the rod dismounting barrel is integrally connected to the lower side of the threaded connector; the lifting groove is formed in the outer side of the rod unloading cylinder and is in an inverted L shape; external threads and internal threads are respectively arranged at two ends of the drill rods; the outer convex shell is connected to the outer ring side of the internal thread end of the drill rod; the through hole is formed in the side wall of the drill rod, so that the inner side of the drill rod is communicated with the interior of the outer convex shell; the upper end of the limiting plate is rotationally mounted at the upper part inside the through hole; the elastic piece is connected between the limiting plate and the inner side of the outer convex shell, so that the lower end of the limiting plate rotates into the drill rod; according to the invention, the integrally-connected rod dismounting cylinder is adopted, so that an independent rod dismounting device does not need to be mounted and dismounted, and the loss risk is avoided; and in cooperation with the drill rod with the elastic limiting plate, the rod dismounting action is accurate and stable, and the rod dismounting efficiency is improved.

The utility model discloses a sealing threaded connector which comprises a coupling and a pipe body meshed with the coupling, and the pipe body is connected with the coupling through threads. An external thread, an outer sealing surface and an outer shoulder surface are sequentially arranged on the upper surface of the pipe body from the middle part to the end part; an internal thread, an inner sealing surface and an inner shoulder surface are sequentially arranged on the lower surface of the coupling from the end part to the middle part; the external thread is matched with the internal thread, the outer sealing face is matched with the inner sealing face, and the outer circular bead face is matched with the inner circular bead face. The threaded connector has reliable connection strength and sealing performance under the complex working conditions of internal and external pressure, bending load, compression load, tensile load and the like.

The utility model discloses a variable taper thread structure, which relates to the technical field of machining, and is characterized in that the variable taper thread structure comprises a male joint and a female joint, the male joint is sequentially provided with an auxiliary circular bead sealing surface B, a front section thread A, a middle section platform A, a rear section thread A and a main circular bead sealing surface A from a position far away from a screw cap, an auxiliary circular bead sealing face B, a rear-section thread B, a middle-section platform B, a front-section thread B and a main circular bead sealing face B are sequentially installed in the female connector, the front-section thread A is meshed with the front-section thread B, and the rear-section thread A is meshed with the rear-section thread B. The drill rod connector has the advantages that the problems that in the background technology, the torsional strength and the fatigue strength of the drill rod connector are reduced, and the service life of the drill rod connector is prolonged are solved. And risks of thread gluing, expansion of the female thread joint, breakage of the male thread joint and the like also exist.

The utility model discloses a wound and stoma exudate drainage device which comprises a drainage tube, a leakage-proof mechanism and a fixing mechanism, and is characterized in that the leakage-proof mechanism comprises a clamping mechanism detachably mounted on the drainage tube, a leakage-proof cover fixedly connected to the clamping mechanism, and an air cushion base detachably mounted at the bottom end of the leakage-proof cover; the fixing mechanism comprises fixing belts fixedly connected to the two sides of the air bag cushion, a plurality of hanging pieces arranged on the fixing belts and air bag sleeves detachably installed on the hanging pieces. Skin friction is reduced through the air cushion base, penetrating fluid seeping from a wound and a stoma can be guided to be directly collected into the waste liquid bag so as to maintain the sanitary environment, stable connection of the drainage tube is guaranteed through a clamping mechanism of the rotary sleeve and the threaded connector, and the comfort, hygiene and safety in use are comprehensively improved.

The invention discloses a maintenance-free water-cooled reactor and a water-cooling system that is easy to assemble. The reactor comprises a frame and a water-cooling system. The frame is provided with an iron core, and a winding is sleeved on the iron core. The water-cooling system is arranged on the frame, and the water-cooling system comprises at least one group of water-cooling plates, each group of water-cooling plates comprises a plurality of water-cooling plates connected in series in sequence, each water-cooling plate is sandwiched between the corresponding iron core and the corresponding winding, and each water-cooling plate has a first water inlet and a first water outlet. By welding, a water inlet pipe and a water outlet pipe are respectively welded and connected to the first water inlet and the first water outlet of the water-cooling plate, and the water inlet pipe and the water outlet pipe are riveted and connected in cooperation with a first sleeve pipe, thereby replacing the traditional method of using a threaded joint in cooperation with a sealing ring, achieving a better sealing effect, preventing the occurrence of water leakage, greatly improving the safety of product use, and requiring no maintenance, thus bringing convenience to use.

The invention discloses an insulating joint and a working method thereof, the insulating joint comprises a main insulating head and an auxiliary insulating head which are in screwing butt joint, one end, close to the auxiliary insulating head, of the main insulating head is rotatably provided with an internal thread joint, and one end, close to the main insulating head, of the auxiliary insulating head is integrally provided with an external thread joint used for being in screwing fit with the internal thread joint; and an annular lip edge is integrally formed on the peripheral surface of the external thread joint. The fixing strength of the connector can be accurately adjusted according to the outer diameter of a cable, tight combination with the end of the cable is achieved, the mechanical connection strength between the connector and the cable is enhanced, it is guaranteed that the end of the cable is not prone to loosening or shifting in the long-term use process, and the service life of the cable is prolonged. And the multi-claw cable tightening assembly enables the friction force between the joint and the cable to be increased through uniformly distributed grasping force, so that the problem of loose connection possibly caused by vibration, stretching or external force is effectively avoided.

A piping system including a pipe and a pipe block coupled to an end of the pipe. The pipe includes: a flange positioned at the end and protruding in a radially outward direction along an outer circumference of the pipe; and a coupling portion having a nipple that is inserted into the pipe block. The pipe block includes: an insertion hole into which the pipe is coupled; and a lip protruding from a surface in which the insertion hole is formed in a circumferential direction along an outer circumference of the insertion hole. An inner diameter of the lip is equal to or greater than an outer diameter of the flange, and when the pipe is coupled to the pipe block, the flange is positioned inside the lip and the lip is deformed in a radially inward direction of the pipe to grip and fix the pipe.

The utility model relates to the technical field of air pipes, in particular to a novel stainless steel air pipe which comprises an air pipe body, a notch is formed in the bottom of the air pipe body, an assembling frame is inserted into the notch, a screw is fixed to the top end of the assembling frame and penetrates through a top plate of the air pipe body, and a nut is in threaded connection with the top end of the screw in a sleeved mode. A filter screen frame is installed in the assembling frame, and a filter screen plate is fixed to an inner ring opening of the filter screen frame. The novel stainless steel air pipe has the advantages that the assembling frame is connected with the air pipe body through the screws and the nuts, and rapid disassembly and assembly can be achieved without complex installation tools. Therefore, not only is the installation efficiency improved, but also the maintenance cost is reduced. Due to the fact that the splicing frame can be rapidly disassembled and assembled, when the filter screen needs to be cleaned or replaced, only the splicing frame needs to be pulled out of the air pipe body, and the whole air pipe system does not need to be disassembled.

The utility model discloses a rivet nut airtightness detection tool comprising a detection cylinder, a sealing groove is arranged in the detection cylinder, the top of the sealing groove is fixedly connected with a sealing gasket, the surface of the sealing gasket is provided with a detection gap, the top edge of the detection cylinder is provided with a matching groove, and a detection cover plate is slidably arranged above the matching groove. The top of the detection cover plate is slidably provided with an adjusting cover plate, the surfaces of the detection cover plate and the adjusting cover plate are provided with positioning holes, one side of each positioning hole is provided with a pipe thread joint, the surface of the adjusting cover plate is in threaded connection with an adjusting bolt, and the tail end of the adjusting bolt is rotatably connected with the surface of the detection cover plate. The beneficial effects of the utility model are that the rivet nut standard component to be detected is fixedly installed in the positioning holes on the detection cover plate and the adjusting cover plate, the detection cover plate and the adjusting cover plate are installed on the detection cylinder in a sealing manner after the detection cover plate and the adjusting cover plate are connected with the airtight instrument through the pipe screwed joint, and the efficient and rapid airtightness detection of the rivet nut standard component is realized.

The invention relates to a sawtooth threaded joint for an oil casing, which comprises a pipe (1) and a coupling (2), male threads (101) are formed on the outer surface of the end part of the pipe (1), female threads (202) are formed on the inner surface of the end part of the coupling (2), the end part of the pipe (1) is inserted into the end part of the coupling (2), and sealing connection is realized by screwing the male threads (101) and the female threads (202). The sawtooth thread tooth profile parameters of the male thread (101) and the female thread (202) are as follows: the tooth profile angle alpha is 60 degrees, the bearing side angle is 3 degrees, the leading-in side angle is 57 degrees, the tooth height h is 1.427 mm, the thread pitch p is 8 teeth / in, and the taper T is 1: 16; the overall length L4 of the male thread is calculated according to the formula that L4 is larger than or equal to 13.5 * D2 / 5 and smaller than or equal to 14 * D2 / 5 and then rounded, and D is the outer diameter of the pipe; the screwing-on machine tightening allowance A is equal to f * D3 / 4, D is the outer diameter of the pipe, f is a coefficient, and f ranges from 0.10 to 0.12. The overall size of the obtained screwed joint can meet the requirements for tensile strength, sealing performance and thread gluing resistance of the screwed joint.

The utility model relates to the technical field of cable waterproof clamping joints, and in particular to a double-threaded nylon cable waterproof joint, comprising a double-threaded round nut, a round nut bevel is provided on the outer side of the upper end of the double-threaded round nut; an inner thread is provided on the inner side of the double-threaded round nut; a double-threaded joint body is provided on the inner lower end of the double-threaded round nut; a joint body petals are provided on the upper end of the double-threaded joint body; a sealing bushing is embedded on the inner side of the double-threaded joint body; the double-threaded nylon cable waterproof joint, through the double-threaded joint body, sealing ring and double-threaded round nut, by adopting a double-threaded central symmetric design on both the round nut and the joint body, so that when the starting position of the round nut thread and the actual position of the joint body thread are in contact, the threads on both sides are in starting contact, and during assembly, the qualified rate of production line assembly can be significantly improved, the assembly is convenient, and the product damage rate can be prevented.

The utility model discloses a torque detection device for a trapezoid lead screw, which comprises a workbench, a torque measuring head and lead screw fixing assemblies, the torque measuring head is movably connected with the workbench, and the lead screw fixing assemblies are movably arranged at the two ends of the workbench and are matched with the ends of the lead screw; relates to the technical field of lead screw torque detection. The fixed screw cylinder is fixedly connected with the mounting frame, the control screw cylinder is in threaded connection with the fixed screw cylinder, one end of the fixed seat is fixedly provided with the threaded chuck, one end of the control screw cylinder is fixedly connected with the control ring, the control ring is movably connected with the threaded chuck, and the control screw cylinder is in threaded connection with the threaded chuck. Therefore, after the end head of the trapezoidal lead screw is inserted into the threaded clamping head, the control screw barrel can be rotated and is in threaded connection with the threaded clamping head, so that the opening size of the threaded clamping head is controlled, the threaded clamping head is matched with the size of the end head of the lead screw, the end head of the lead screw is clamped, and the clamping effect is good.

The utility model relates to an RTP pipe joint sealing structure for high-pressure gas gathering and transportation. The RTP pipe joint sealing structure comprises a joint core pipe, a sleeve and a pipe body. One end of the joint core pipe is provided with a sealed end, and the other end of the joint core pipe is connected by being embedded in the pipe body; external threads are arranged on the outer ring of the joint core tube; one end of the sleeve is provided with internal threads; the joint core pipe is in threaded connection with the internal thread through the external thread; the other end of the sleeve is nested outside the pipe body; an annular sealing groove is further formed in the outer wall of the connector core pipe. An O-shaped rubber sealing ring and a plastic check ring are mounted in the annular sealing groove; the cross section of the annular sealing groove is square or trapezoid, and the cross section of the plastic check ring is also arranged to be of a square or trapezoid or polygonal structure corresponding to the cross section of the annular sealing groove. According to the utility model, the assembly size is more accurately controlled, so that the assembly connection gap between the pipe and the joint is tighter, and the sealing effectiveness is fully ensured.

The utility model belongs to the technical field of detection devices, and particularly relates to a chemical electrical instrument running state detection device which comprises a chemical gas pipeline and a detection device, a detection section is arranged on the chemical gas pipeline and comprises a three-way pipe, a valve is installed on the top of the three-way pipe, and a detection device butt joint pipe is installed on the top of the valve. Threads are arranged on the inner wall of the top of the detection device butt-joint pipe, the interior of the detection device butt-joint pipe is connected with a threaded sealing cover through the threads, a touch display screen is arranged on the front face of the detection device, a pressure sensor is installed in the detection device, the bottom of the pressure sensor is connected with a connecting pipe, and a fixing base is connected to the bottom of the connecting pipe. The device has the function of detecting the remote monitoring pressure detection instrument on the chemical gas pipeline, the remote monitoring pressure detection instrument does not need to be disassembled and assembled during detection, the detection convenience is improved, and detection information can be automatically uploaded.

The invention discloses a single-walled carbon nanotube collecting device, which relates to the related technical field of carbon nanotube preparation, is used for collecting single-walled carbon nanotubes entering a deposition area of a tubular reactor, and comprises a collecting net arranged in the deposition area of the tubular reactor, the sealing flange close to the deposition area of the tubular reactor is connected with the end part of the tubular reactor in a screw joint manner, the collecting net is mounted on the sealing flange, a sealing ring is mounted at the axial end part of the sealing flange, and a first abutting surface is arranged in the tubular reactor; in the stroke that the sealing flange is inserted into the tubular reactor and rotates, the end of the sealing flange is matched with the first abutting face to extrude the sealing ring to generate elastic deformation, and the sealing ring subjected to elastic deformation is attached to the collecting net.

The invention belongs to the technical field of petroleum and natural gas industry, and discloses a gas seal thread sealing performance evaluation method and a thread optimization method and system.The evaluation method comprises the steps that structural parameters of a target connector are determined; determining the sealing contact effective length of the target joint and the initial interference magnitude of the sealing surface; obtaining a make-up torque model of the target joint; performing make-up torque parameter sensitivity analysis, and evaluating thread parameters by analyzing the influence of the magnitude of interference and the thread friction coefficient on the proportion of the total make-up torque and the shoulder surface acting torque; and performing finite element analysis on the target joint air-tight seal buckle, and evaluating the thread sealing performance under the corresponding working condition according to a finite element analysis result. Advanced theories of material mechanics, pipe column mechanics, finite element analysis and the like are integrated, various performance indexes of thread strength, thread sealing performance and the like of the threaded connector under different loading conditions can be comprehensively evaluated, and different parameter optimized thread structure stress values can be rapidly obtained.

The invention provides a fender front portion installation tool. The fender front portion installation tool comprises an assembly tool body used for connecting a side edge beam and a fender body. The wheel fender main body comprises a wheel fender surface and a front bumper connecting part which extends towards the direction of the assembly tool main body along the wheel fender surface, the side, away from the wheel fender surface, of the side edge beam is fixedly connected with a front bumper, and the side edge beam extends towards the direction close to the front bumper connecting part to form a mounting part which is connected with the assembly tool main body. Through the design of the assembly tool body, the installation part can be welded to the vehicle body, independent screw joint is not needed, the cost of a fender panel screw joint tool is saved, the assembly efficiency is improved, meanwhile, through the assembly tool body, a traditional external large tool is changed into a front handheld installation and positioning small tool, the tool is simpler and more convenient, and the assembly efficiency is improved. And the installation efficiency of the front part of the fender is greatly improved.

The multipurpose positioning pin puller comprises a pin body connecting rod, one end of the pin body connecting rod is a connecting end, the connecting end is in threaded connection with a double-thread connector connected with a positioning pin, and the other end of the pin body connecting rod is provided with an end limiting device. The pin body connecting rod is sleeved with the end limiting device, the position of the end limiting device can be adjusted in the axial direction of the pin body connecting rod, the pin body connecting rod is further sleeved with a push block part, the push block part moves along the pin body connecting rod and generates pulling-out driving force on the positioning pin body, the guide positioning sleeve comprises a columnar sleeve part, one end of the sleeve part forms an operation platform face, and the other end of the sleeve part is connected with the pin body connecting rod. A through hole for the pin body connecting rod to penetrate through in a guiding mode is formed in the operation platform face, and a strong magnet is arranged at the bottom of the sleeve part. According to the multipurpose positioning pin puller for the mineral oil disc separator, different positioning pins with different internal threads in a rotary drum part can be pulled out by replacing one part, and multiple purposes are achieved through one object.

The invention provides a portable single-person intelligent power-assisted security vehicle. The security vehicle comprises a quick disengaging device, an elastic buffer pressure collecting module, a second-section traction rod, a first-section traction rod, a security vehicle frame and a longitudinal arm driving assembly. The components are sequentially assembled in a screw joint or welding manner; longitudinal arm driving assemblies are arranged on the two sides of the support vehicle frame respectively; a traction rod is arranged at one end of the support vehicle frame; a second-section traction rod is arranged at the other end of the first-section traction rod; and a quick release device and an elastic buffer pressure acquisition module are arranged at the other end of the second-section traction rod. The push-and-pull function is achieved, a good balance state can be maintained during push-and-pull, and the impact of a guarantee vehicle on personnel during dynamic change of the personnel is reduced.

The invention discloses an external thread clamping sleeve joint, and particularly relates to the technical field of pipe joints, the external thread clamping sleeve joint comprises a butt joint nut, a first clamping sleeve, a second clamping sleeve and a hollow rubber ring, the hollow rubber ring is arranged in a limiting groove, and a cavity in the hollow rubber ring is filled with sealant; the first flow guide grooves are formed in the peripheral side wall of the second clamping sleeve in an array mode and used for guiding the sealant into a concave cavity generated when the connecting pipe is extruded after the second clamping sleeve deforms; in the screwing process of the external thread connector, the external thread connector can extrude and break the hollow rubber ring, so that a gap between the butt joint nut and the external thread connector is sealed through sealant firstly, and when the external thread connector is screwed till the lowest point of the chamfer of the second clamping sleeve crosses the lowest point of the first flow guide groove, the sealing effect is achieved. And finally, the sealant enters the concave cavity generated by extruding the connecting pipe after the deformation of the second clamping sleeve from the first flow guide groove, so that the sealing between the external thread joint and the connecting pipe is realized.

The utility model relates to a secondary feeding device of a vacuum induction gas atomization powder making furnace, and belongs to the technical field of metal powder production equipment in the metallurgical industry. According to the technical scheme, a sealed cabin (2) is provided with a cabin door (7) and a shielding gas connector (6), a gear (5), a sliding rail (9) and a rack (11) are arranged in the sealed cabin (2), the sliding rail (9) is fixed in the sealed cabin (2), the rack (11) is connected to the sliding rail (9) in a sliding mode, and a rocker arm (12) is arranged on the gear (5); one end of the rack (11) is provided with a screwed joint (13), one end of the sealed cabin (2) is provided with an extension port, and the extension port is provided with a pneumatic valve (10); and one end of the feeding pipe (4) is in threaded connection with the threaded joint (13) of the rack (11), and the other end of the feeding pipe (4) is provided with a sealing door (15). The vacuum induction gas atomization powder making furnace has the advantages that different raw materials can be added into the crucible in the vacuum induction gas atomization powder making furnace at any time in the alloy ingredient smelting process.

The utility model discloses a code spraying auxiliary assembly for an ink-jet printer, which belongs to the field of ink-jet printers and comprises a support provided with a conveying belt and a mounting frame. The auxiliary assemblies are arranged, the fixing plates are installed on the support through the screw rods, the sliding blocks and the nuts, the whole auxiliary assemblies can be adjusted along the support according to the actual situation, the guiding plates are installed on the fixing bases through the connecting rods, the distance between the two guiding plates can be changed in cooperation with the elastic abutting structures for use, and therefore the distance between the two guiding plates can be changed. The auxiliary guiding device is suitable for auxiliary guiding work of objects of different models, the use flexibility and adaptability are improved, a hand lifting rod, a pressing plate, an abutting spring and other structures are arranged in the elastic abutting structure, when the position of the guiding plate is adjusted, only a movable rod and the pressing plate need to be lifted for receding, after adjustment is completed, a connecting rod can be rapidly fixed through the abutting spring, and the guiding plate is convenient to use. The adjusting process is extremely simple and convenient, and the pressing plate is installed at the lower end of the movable rod through the threaded connector and can be detached conveniently to replace the abutting spring.

The utility model relates to the technical field of flexible rubber hoses, in particular to a foaming flexible rubber hose. According to the technical scheme, the sealing assembly comprises a first threaded connector, a rubber hose, a buckle ring and an attaching block, the rubber hose is fixedly installed at the position, close to the end, of the inner wall of the first threaded connector, and the buckle ring is fixedly installed at the position, close to the end, of the outer arc face of the rubber hose; the inner wall of the second threaded connector is slidably connected with two attaching blocks which are symmetrically arranged, and the side portions of the buckle rings make contact with the attaching blocks. A first threaded connector is fixedly installed at the end of the main foaming hose, and the outer wall of the first threaded connector is in threaded connection with a second threaded connector. When air flows, the air applies pressure to the inner arc surface of the rubber hose to enable the rubber hose to be attached to the inner arc surface of the attaching block, and the clamping ring and the attaching block clamp the extending rubber sheet, so that the air is prevented from flowing to the joint of the first threaded joint and the second threaded joint, and the sealing effect is improved.

The utility model relates to the technical field of wood-working mechanical edge sealing equipment industry, and particularly discloses an edge sealing band floating type cutting mechanism which comprises an air cylinder bottom plate, an air cylinder is fixedly connected to the outer side of the air cylinder bottom plate, a cutter clamping sleeve is fixedly connected to the output end of the air cylinder, and a blade fixing plate is fixedly connected to the interior of the cutter clamping sleeve. The top of the air cylinder bottom plate is fixedly connected with an upper cutter guide groove, the bottom of the air cylinder bottom plate is fixedly connected with a lower cutter guide groove, the top of the air cylinder is fixedly connected with an exhaust valve, one end of the top of the exhaust valve is fixedly connected with a silencer, and the other end of the exhaust valve is in threaded connection with an L-shaped block insertion type threaded connector. The end, away from the cutter clamping sleeve, of the air cylinder is fixedly connected with a proximity sensor, the outer side of a bottom plate of the air cylinder is fixedly connected with a cutter groove, the swing assembly and the rotating shaft are arranged to control the whole cutting mechanism to swing, and meanwhile, the adjustable spring is reset through pressure, so that the cutter track material and the machining technology are optimized, and the cutting effect of a cutter edge is optimized.