206results about How to "Compact and reasonable structure" patented technology

The utility model relates to the technical field of coated asphalt production, in particular to a reaction kettle for heating high-soft-point coated asphalt, which comprises a kettle cover body, a reaction kettle body, a middle stirring shaft and an auxiliary stirring frame, the middle stirring shaft and the auxiliary stirring frame are mounted in the reaction kettle body, a planetary gear driving device is arranged at the upper end of the kettle cover body, and a driving motor is arranged at the upper end of the planetary gear driving device. And the driving motor is connected with the middle stirring shaft and can drive the middle stirring shaft to rotate. The stirring device is reasonable and compact in structure and convenient to use, the auxiliary stirring frame is driven by the planetary gear driving device to rotate, so that asphalt adhered to the side wall is effectively cleaned by the side scraping plate, and the effect of stirring mixed materials can be achieved; the auxiliary frame stirring blades on the auxiliary stirring frame and the middle shaft stirring blades of the middle stirring shaft are alternately distributed and form differential rotation, so that the stirring effect is effectively improved, materials at the bottom of the reaction kettle body are fully stirred through the lower scraping plate, the materials are prevented from sinking to the bottom, and the reaction kettle has the characteristics of high stirring efficiency, good stirring effect, simplicity, convenience, reliability and high efficiency.

The utility model provides an underwater robot for bridge detection, which relates to the technical field of bridge detection, and comprises a robot main body, a floating component for providing floating force is arranged at the upper part of the robot main body; the propeller set comprises two side propellers and two tail propellers, the two side propellers are located on the front face of the robot body, and the two tail propellers are located at the same end of the buoyancy assembly and symmetrically arranged front and back; and the two symmetrical walking mechanisms are arranged on the robot main body through mounting structural members. The beneficial effects of the utility model are that through the reasonable layout of the propeller group and the cooperative work of the propellers at the two sides and the tail part, accurate water surface positioning and movement are realized, and the robot is ensured to smoothly approach and fit a pile foundation from the water surface; the posture of the whole machine does not need to be adjusted when the pile foundation is close to the pile foundation, and the pile foundation can be directly adsorbed and attached through the propellers on the two sides; a tensioning mechanism in the walking mechanism has self-adaptability, and an elastic support is matched with a connecting frame connected in a sliding mode.

The utility model relates to the technical field of quartzite processing, and discloses a quartzite processing and stirring mechanism which comprises a movable chassis, a stirring barrel fixedly mounted in the middle of the top end of the movable chassis and a protective cover plate arranged at the top of the movable chassis, and a downstream groove communicated with the bottom of an inner cavity of the stirring barrel is formed in the middle of the top wall face of the movable chassis. A closed baffle is movably connected into the downstream groove, an inverted-U-shaped support fixedly mounted at the top end of the movable chassis is arranged on the outer side of the stirring barrel, and a lifting mechanism used for driving the protective cover plate to move up and down is arranged at the top end of the inverted-U-shaped support. The lifting mechanism comprises a driving air cylinder fixedly installed in the middle of the top end of the inverted-U-shaped support and a lifting sliding plate fixedly installed at the telescopic end of the driving air cylinder, a main stirring rod is rotationally connected to the middle of the bottom wall face of an inner cavity of the protective cover plate, and a stirring mechanism is arranged on the main stirring rod. By arranging the lifting mechanism and the stirring mechanism, the raw material stirring effect of the equipment is improved, and the practicability of the equipment is improved.

The utility model relates to the technical field of pipeline sealing in a water supply and drainage pipe network, in particular to a sealing device for a pipeline penetrating through a well wall. The waterproof pipeline comprises a pipeline body and a waterproof sleeve, the waterproof sleeve is located on the outer side of the pipeline body, an annular cavity is formed between the waterproof sleeve and the pipeline body and filled with polystyrene foam, and waterproof mortar layers are fixed to the positions, between the left end and the right end of the waterproof sleeve and the pipeline body, of the annular cavity respectively. The waterproof pipeline is reasonable and compact in structure and convenient to use, the polystyrene foam is filled in the annular cavity formed between the waterproof sleeve and the pipeline body, and the waterproof mortar layers are respectively fixed at the positions of the annular cavities between the left end and the right end of the waterproof sleeve and the pipeline body, so that the purpose of sealing is achieved; the sealing device has the advantages of being safe, reliable, good in sealing effect and high in applicability, uneven sedimentation of the pipeline or the inspection well caused by leakage is prevented, and process dependence and construction difficulty are greatly reduced.

The utility model relates to a kind of integrated industrial air conditioning unit using combustible refrigerant, indoor side air duct and outdoor side air duct are separated in shell using first partition, evaporator and air supply fan are placed in indoor side air duct, condenser and condensing fan are placed in outdoor side air duct, indoor side air duct is communicated with indoor space by air supply port and return air port, outdoor side air duct is communicated with outdoor space by air inlet and air outlet, air supply valve is installed at the air supply port, exhaust valve for selectively communicating with outdoor side air duct is installed on indoor side air duct, refrigerant detection device for detecting the content of combustible refrigerant is installed in shell, the refrigerant detection device is connected with controller, the controller is configured to control the air supply valve to close and exhaust valve to open in response to refrigerant leakage information.The utility model can handle combustible refrigerant leakage in time, ensure air conditioning unit use safety.

The utility model relates to the technical field of pipeline sealing rings, in particular to a farmland PVC pipeline bell and spigot sealing ring which comprises an annular sealing ring body, the inner side of the sealing ring body comprises a first sealing face and a second sealing face which are sequentially connected from top to bottom, and the first sealing face and the second sealing face are both conical. The sealing ring is reasonable and compact in structure, the second sealing face is arranged, the inner side sleeve can make sealing contact when the inner side of the upper portion of the sealing ring body is sleeved with the inner side sleeve, the sealing effect between an inner side pipeline and the sealing ring body is guaranteed, the sealing protrusions are arranged, the inner surface of the sealing ring body and the outer wall of the inner side pipeline make line contact, and the sealing effect is better compared with surface contact. In this way, the sealing performance between the sealing ring body and the outer wall of the inner side pipeline can be guaranteed, the friction force generated when the sealing ring body is installed on the outer wall of the inner side pipeline can be reduced, the disassembly and assembly difficulty is lowered, and the at least two sealing protrusions can avoid the leakage phenomenon caused by unevenness of the outer wall of the pipeline due to surface machining tolerance.

This utility model relates to the field of toxic gas sampling technology, and is an online closed sampling device for toxic gases. It includes a transparent box, a box support, an air inlet assembly, and protective gloves. The box support is located at the bottom of the transparent box. The air inlet assembly includes a first straight pipe section, a second straight pipe section, an air inlet hose, and a gas connection hose. An air inlet hole is provided on the top wall of the transparent box. The first straight pipe section extends from the outside of the transparent box through the air inlet hole into the interior of the transparent box. A hand valve is fixedly installed on the second straight pipe section. The front wall of the transparent box is designed with symmetrical double doors, including a left door and a right door. The left and right doors each have symmetrical left and right hand holes, and protective gloves are fixedly installed in both the left and right hand holes to reach into the transparent box. This utility model has a reasonable and compact structure, is easy to use, and improves both the safety and efficiency of online toxic gas sampling.

This utility model relates to an internal cleaning device for pipelines in thermal power plants. It includes an equipment housing containing a rotatable transmission rod and a hollow shaft. A drive impeller is fixed to the outer wall of the transmission rod. A water pump is connected to the equipment housing. A water inlet is located on the side wall of the hollow shaft. Several sets of connecting telescopic pipes radiate circumferentially from the side wall of the hollow shaft extending out of the equipment housing. A cleaning brush is fixed to the outer end of each connecting telescopic pipe, and a drain hole is passed through the cleaning brush. An adjusting mounting plate is installed at the front end of the hollow shaft. A cross-shaped adjusting groove is formed on the adjusting mounting plate. A bidirectional threaded rod and an adjusting threaded rod are rotatably installed within the cross-shaped adjusting groove. Adjusting nut blocks are threadedly connected to the top and bottom of the bidirectional threaded rod and to the adjusting threaded rod. A connecting bracket is fixed to the adjusting nut block, and the connecting bracket is connected to a corresponding set of connecting telescopic pipes. This utility model can be adapted to cleaning pipelines of different sizes, is simple to operate, has a compact structure, and improves ease of use.

The utility model relates to the technical field of agriculture, in particular to a universal seed box frame which comprises a seeding disc pulling frame, a fixing plate, a connecting plate, a mounting pipe and a mounting seat, and the fixing plate is detachably and fixedly mounted on the upper side of the left part of the seeding disc pulling frame. The adjustable seeding tray pulling frame is reasonable and compact in structure, when the adjustable seeding tray pulling frame is used, the seed box is fixedly installed on the upper side of the installation base, the seeding tray pulling frame and a seeding machine are installed together, and the position of the installation base can be adjusted through the first connecting piece, so that the position of the seed box can be adjusted, and the adjustable seeding tray pulling frame can adapt to the positions of various different seed receiving pipes; the position of the seed box can be conveniently adjusted according to the required line spacing, and through the first connecting piece penetrating through the mounting seat and the mounting pipe, the connection between the mounting seat and the mounting pipe is more stable, and the seed box can be prevented from being damaged after being mounted on the mounting seat. During seeding, the gravity of the seed box enables the distance between the two groove edges of the mounting seat slidably mounted on the mounting pipe to be gradually increased, so that the failure rate can be reduced.

The invention discloses a plug-in blowout wellhead crude oil collecting device. The plug-in blowout wellhead crude oil collecting device comprises a central pipe, a connector mechanism, a hydraulic cylinder mechanism, a slip mechanism, a capsule sealing mechanism, an interference sealing mechanism and a guide mechanism. The invention further discloses a blowout wellhead crude oil collecting method. The method comprises the following steps that firstly, the matched extension pipeline, the blowout preventer device, the hydraulic valve and the collecting pipeline are selected; secondly, a central pipe, an extension pipeline, a blowout preventer device, a hydraulic valve and a collecting pipeline are fixedly connected in sequence; thirdly, the connector mechanism and the hydraulic valve are connected with the hydraulic station; (4) the device is placed at a proper position in a sleeve; fifthly, the slip mechanism is fixed in the casing pipe in a fastened mode, it is ensured that the capsule sealing mechanism and the interference sealing mechanism are both tightly sealed on the casing pipe, and then crude oil can be collected. The device is reasonable in structure, high in practicability and capable of reducing the risk that crude oil pollutes the environment and improving the efficiency of emergency operation.

The utility model relates to pipeline welding auxiliary device technical field, is a kind of automatic in position device of medium-frequency heating band, including medium-frequency heating band and the welding shed covered in the upper portion of medium-frequency heating band, further including winch, first pulley, second pulley, first wire rope and second wire rope, first pulley and second pulley are symmetrically installed in the upper portion left and right interval of medium-frequency heating band, first fixed seat is installed in the inside of the upper portion of welding shed corresponding the position above first pulley, first guide pulley is rotatably installed in first fixed seat.The utility model is reasonable and compact, the quick lifting and positioning of medium-frequency heating band are realized by the start-stop of winch control, the medium-frequency heating band can be evenly wrapped on the outside of pipeline, the pipeline is heated, and it can be completed by single operation, the efficiency is improved by 3 to 5 times compared with manual winding mode, and falling injury accident and scald accident easily caused under high temperature environment during manual operation can also be avoided.

The invention relates to the technical field of drilling tools, in particular to a high-temperature-resistant oil gas drilling circumferential impact speed increasing device which comprises a connecting outer barrel, a lower connector and a circumferential impact device, the lower connector is fixedly mounted at the lower end of the connecting outer barrel, and a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are sequentially and fixedly mounted on the inner side of the connecting outer barrel from top to bottom; the circumferential impact device comprises an impact driving assembly, an impact transmission assembly and an impact execution assembly, an upper mounting hole penetrating vertically is eccentrically formed in the first partition plate, and a lower mounting hole penetrating vertically is formed in the position, corresponding to the upper mounting hole, of the second partition plate. The device is reasonable and compact in structure and convenient to use, and circumferential impact of converting liquid energy into momentum is achieved through periodic reciprocating rotation of the impact hammer in the impact cylinder; by arranging the left arc-shaped groove and the right arc-shaped groove, the strokes of the left arc-shaped boss and the right arc-shaped boss are increased, and the beneficial effects of being stable, reliable and efficient are achieved.

The utility model provides a high-efficiency intelligent wind-light-diesel-storage micro-power station, which relates to the field of wind-light-diesel-storage micro-grid power stations and comprises a box body used for providing support, a diesel generator cabin used for installing a diesel generator, a high-voltage power distribution cabin used for installing power distribution equipment and an energy storage cabin used for installing a battery. An inner cavity of the diesel generator cabin is fixedly connected with a variable-frequency direct-current diesel generator set used for power generation, and a hybrid inverter used for AC / DC conversion and a wind driven generator controller used for controlling wind power generation are installed in an inner cavity of the high-voltage power distribution cabin. According to the utility model, the EMS controller is adopted to carry out energy scheduling in a unified manner, is respectively connected with the hybrid inverter, the wind driven generator controller and the three-phase AC ammeter through RS485, and is respectively connected with the frequency conversion DC diesel generator set and the BMS of the energy storage battery through CAN2.0B, so that a unified control architecture is formed, the control complexity is reduced, and the control precision is improved at the same time.

This invention relates to the field of gas wellhead control technology, specifically an electric valve for gas production wellheads and its usage method. The former includes a valve body, valve stem, drive assembly, and sealing core assembly, with a valve cavity within the valve body. This invention features a reasonable and compact structure. By setting a primary valve seat and a secondary valve seat, the electric valve for gas production wellheads can achieve different adjustment functions at different stages during the adjustment process. During well opening and closing, it can achieve precise control of the wellhead flow rate, preventing the valve and pipeline from freezing due to reduced flow caused by excessive valve opening. Furthermore, it can adjust the opening of the electric valve for gas production wellheads based on downstream pressure or flow rate during production, making adjustment more convenient. During intermittent production of the gas well, when the gas well's production capacity and liquid carrying capacity are low, the drive assembly can periodically move the valve stem downwards to close the valve, thereby achieving intermittent production and improving the gas well's productivity.

This utility model relates to the field of liquid lens technology, specifically an adjustable focusing lens based on a liquid lens, including a lens mount and a liquid lens module. One end of the lens mount has a docking groove, and the liquid lens module rests against the docking groove. One end of the lens mount has a positioning groove, and the liquid lens module has a positioning box that rests against the positioning groove. The positioning box has an electrode connector, and the positioning groove has an interface. An annular inclined groove is formed on the outer ring of the liquid lens module. The lens mount has a fastening box, and a threaded hole is formed between the top of the fastening box and the docking groove. A fastening groove is formed between the inside of the fastening box and the threaded hole. The threaded post and conical head allow the operator to complete the stable installation or quick disassembly of the liquid lens module simply by rotating the threaded post, without the need for additional tools, greatly improving maintenance convenience.

The utility model relates to a kind of lifting reciprocating components for stuffing forming machine material receiving, the component includes base, side plate, guide rail, sliding block, cutter disc lifting plate, belt lifting plate, cutter disc lifting motor and belt lifting motor, two side plates are vertically fixed in the both ends of base, its inboard is equipped with guide rail, sliding block is mounted on guide rail, sliding block is connected cutter disc lifting plate between, cutter disc lifting motor drives cutter disc lifting plate to reciprocate along guide rail up and down by first crank link mechanism, belt lifting motor drives belt lifting plate to move up and down by second crank link mechanism, belt assembly is provided on belt lifting plate, symmetrically equipped with guide rod on belt lifting plate, guide rod is fixedly arranged in guide seat on base, and its top end is provided with lower supporting plate and upper supporting plate for carrying belt assembly, the utility model realizes the independent accurate lifting of cutter disc and material receiving belt and collaborative operation, movement is stable, material receiving is reliable, effectively improve the production efficiency and product quality of stuffing forming machine.

This invention relates to the field of reservoir development technology and is a co-injection and production tool for CCUS production wells. It includes a tubing string and a cable packer connected sequentially from top to bottom. The cable packer includes an upper connector, a connecting sleeve, an inner central tube, an anchoring assembly, and a lower connector. This invention has a reasonable and compact structure. The cable packer of this application has gas flow channels and liquid flow channels, enabling physical separation and directional flow of gas-liquid two-phase flows under high pressure, thereby achieving co-injection and production and realizing true "in-well circulation": through "downhole separation and co-injection," the separation, reinjection, and storage of carbon dioxide are compressed into a single well, greatly simplifying surface facilities, reducing investment and operating costs, and significantly improving carbon storage efficiency and speed. Through independent gas flow channels and liquid flow channels, efficient separation of gas-liquid two-phase flows can be achieved under high pressure, solving the technical bottleneck of co-injection and production.

The application discloses a tension adjusting mechanism of a stator winding machine, relates to the technical field of stator processing, and comprises a main plate, two groups of rotation shafts symmetrically arranged and rotationally connected to one side of the main plate, and winding discs fixedly connected to the outside of the rotation shafts; a sliding block is slidably connected to the inner side of a sliding groove, a threading mechanism is installed on one side of the sliding block, a second sliding plate is fixedly connected to the other side of the sliding block, and a positioning mechanism is installed between the second sliding plate and the main plate; a hanging ring is fixedly connected to the upper side of a protruding block; a tension sensor is fixedly connected to the outside of the main plate, an inductive sheet is fixedly connected to the bottom of the tension sensor, and a tension monitoring mechanism is installed between the inductive sheet and the hanging ring; the device adjusts the position of a wire passing frame through the sliding groove to change the wire path length, realizes quick tension adjustment, combines the tension sensor and an elastic connection structure, monitors and feeds back tension data in real time, ensures controllable winding tightness, improves winding quality, avoids wire breakage, and is simple, safe and reliable to operate.

The invention relates to a photovoltaic modular string digital assembling vehicle and method. The photovoltaic modular string digital assembling vehicle mainly comprises a vehicle platform, a platform fixing device, an assembling table lifting mechanism, an automatic lifting stair, a purline placing platform lifting device, a purline placing platform, a photovoltaic panel material turnover mechanism, an operation table, a sensor assembly, a mechanical arm, a walking system and an MES datamation management module. According to the invention, photovoltaic module assembling stations are integrated on the vehicle platform, so that constructors can complete string assembling operation of photovoltaic modules on the vehicle, and the modules are in place by cooperating with vehicle movement, so that the labor intensity of manual plate lifting and racking is remarkably reduced, and the working efficiency, consistency and safety are improved; meanwhile, real-time recording, tracking and multi-vehicle cooperative scheduling of the assembling process, the string state and the construction progress are achieved by means of an MES datamation management module, and technical support is provided for standardization, modularization and intelligentization of photovoltaic power station construction.

This invention relates to the field of fracturing string technology, specifically a fracturing device and method with a pressure-driven top seal and temporary plugging mechanism. The device comprises, sequentially connected from the well bottom to the wellhead, a guide shoe, a coupling locator, a sliding sleeve jetting device, a bottom packer, a hydraulic anchor, tubing, a top packer, and a screen pipe. The screen pipe includes a body and a lower conversion joint, connected together. The body has several through-flow channels. The screen pipe connects the tubing to the annulus, allowing for simultaneous injection of fracturing fluid into the tubing and casing, increasing the fracturing fluid flow rate for high-volume fracturing operations. This invention features a reasonable and compact structure, is easy to use, and employs an annulus-based or simultaneous injection method. The fracturing fluid is redirected through the screen pipe before entering the tubing string for targeted fracturing operations, effectively increasing the fracturing fluid flow rate and enabling applications in high-volume fracturing operations. The absence of a packer behind the sliding sleeve jetting device fundamentally reduces the risk of packer sand jamming.

The invention relates to the technical field of filters, in particular to a high-altitude fire-fighting spray manifold filter which comprises a connector, a filter outer cylinder, a filter inner cylinder, a reset spring and a hydraulic plate, the connector with the left end located on the left side of the filter outer cylinder is fixedly installed on the inner side of the left end of the filter outer cylinder, and a limiting ring table is arranged on the inner side of the right end of the filter outer cylinder; a filter inner cylinder is arranged on the inner side of the left portion of the filter outer cylinder corresponding to the position between the connector and the limiting ring table, an installation ring groove is formed in the outer side of the right end of the filter inner cylinder, a reset spring with the right end located on the right of the filter inner cylinder is installed in the installation ring groove, and the right end of the reset spring abuts against the left side of the limiting ring table. The filtering device is reasonable and compact in structure and convenient to use, and impurities are intercepted in the filtering inner cylinder by arranging the filtering plate; by arranging the guide key block and the guide key groove, the inner filter cylinder and the outer filter cylinder are prevented from rotating in the circumferential direction, so that the inner sewage discharge hole and the outer sewage discharge hole are prevented from being staggered in the circumferential direction, and the filter has the characteristics of stability, reliability and good filter effect.

A cash box with a banknote detector includes a banknote detector, a cash box, and an outer casing. The outer casing comprises a top plate, a bottom plate, and multiple outer side plates forming a closed cavity, within which the cash box is placed. The top plate includes an inclined section and a straight section. A mounting bracket for mounting and fixing the banknote detector is locked onto the inclined section, and a banknote inlet is provided in the straight section. A banknote inlet is located on the top of the cash box, corresponding to the banknote inlet below the banknote inlet. An inclined hopper is located behind the mounting bracket, with its upper and lower ends forming a banknote outlet and a banknote discharge outlet. The rear end of the banknote detector forms a banknote discharge outlet, with the banknote inlet located behind the banknote discharge outlet and the banknote discharge outlet located above the banknote inlet. A baffle is also locked onto the top of the outer casing, connecting to a common cover on the top of the outer casing behind the mounting bracket. The banknote inlet is located below the baffle. This invention has a simple structure, is easy to assemble, has low cost, and provides smooth banknote detection and storage.

The utility model discloses a novel pet car which comprises a car frame, the car frame comprises a folding box, a folding rotating assembly, a hand push rod, two rear wheel supports and two front wheel supports, the folding rotating assembly is located in the folding box, and the top ends of the rear wheel supports, the top ends of the front wheel supports and the bottom end of the hand push rod are all connected with the folding assembly; the hand push rod can stretch out and draw back and unlock the folding rotating assembly, and the rear wheel support and the front wheel support rotate and draw close to each other. The pet basket comprises an upper surrounding frame, a lower surrounding frame, a supporting frame, a bottom plate and surrounding cloth, the two ends of the supporting frame are hinged between the upper surrounding frame and the lower surrounding frame respectively, the bottom plate is installed on the inner side of the lower surrounding frame, and the surrounding cloth is connected between the upper surrounding frame and the lower surrounding frame; and the bottom plate is detachably mounted above the folding box. The pet basket has the advantages that folding operation steps are simplified, carrying and storage are convenient, and the pet basket is convenient to detach and clean.

The utility model relates to sewage treatment technical field is a kind of multistage urea dosing device of sewage treatment system, it includes electroflocculation unit, aerobic unit, efficient anaerobic unit, urea solution preparation tank, urea solution storage tank, and aerobic unit includes first aerobic tank, second aerobic tank, ammonia nitrogen detector is fixedly arranged on second aerobic tank, first sewage delivery pipeline is fixedly connected between electroflocculation unit and aerobic unit, second sewage delivery pipeline is communicated between the outlet of aerobic unit and the import of efficient anaerobic unit, first urea solution pipeline is communicated between the outlet of urea solution storage tank and first sewage delivery pipeline, second urea solution pipeline is communicated between first urea solution pipeline and second sewage delivery pipeline, and fourth urea solution pipeline is also communicated in the import of second aerobic tank.The utility model is reasonable and compact in structure, convenient to use, and it keeps ammonia nitrogen concentration stable by steady and continuous addition of urea solution, improves the conversion capacity of microorganism to organic matter in sewage.

The present application relates to a preparation process of isotropic pitch and high softening point coating pitch, which uses aromatic oil as raw material oil, and bio-tar or / and bio-pitch as co-carbonization agent. The pre-polymer material is obtained by pre-polymerization reaction of the bottom into the pre-polymerization reactor under the induction of oxygen-containing linear polymer. The photosensitive oxidation crosslinking agent is added to the pre-polymer material, the material distribution tray in the middle of the oxidation crosslinking reaction tower is fed, and the oxidation crosslinking gas enters from the lower part of the crosslinking reaction tower through the gas distributor. The obtained crosslinking pitch product is discharged from the bottom of the reaction tower. The crosslinking pitch then enters the middle of the polymerization reactor, and the polycondensation reaction occurs under the induction of high-energy electron beam irradiation. The polycondensation pitch product is obtained from the lower part of the polymerization reactor. The polycondensation pitch product enters the upper part of the extraction separation tower, and the sub / supercritical solvent enters the lower part of the extraction separation tower. The two-phase countercurrent contact extraction separation is carried out, and the isotropic pitch and high softening point coating pitch are obtained after the extraction solvent is separated.

The utility model discloses a kind of quick slotting marking device of plastic bobbin, including rack, bobbin positioning mechanism, slotting execution mechanism and control system.Bobbin positioning mechanism is installed on rack, its positioning groove is V type or half-enclosing structure, cooperate semicircular positioning sleeve and limit block, realize bobbin fast accurate positioning, prevent deviation and shift.Slotting execution mechanism is integrated below positioning groove, contain linear slide, high-speed electric spindle and conical milling cutter, linear slide provides high-precision linear feed, ensure quick processing.Control system is composed of PLC controller and foot switch, cooperative control device operation.The utility model improves consistency and stability of clamping, optimizes structure layout, shortens tool stroke, realizes bobbin fast clamping, accurate positioning and high-efficiency slotting, single-piece processing time is short, marking has permanence, degree of automation is high, reduces artificial cost etc., comprehensive benefit is remarkable.

The utility model relates to a heat source processing technical field, is a kind of steam pipe network condensate collecting device, it includes low-pressure steam separator, medium-pressure steam separator, condensate collecting tank, first low-pressure steam pipeline and first medium-pressure steam pipeline, first low-pressure steam pipeline and low-pressure steam separator upper inlet between fixed communication has first low-pressure steam condensate pipeline.The utility model is reasonable and compact in structure, convenient to use, it is collected to low-pressure steam separator and medium-pressure steam separator by the low-pressure steam separator and medium-pressure steam separator and matched pipeline that are additionally arranged with the condensate of low-pressure steam and medium-pressure steam in pipeline, and the excess steam in low-pressure steam separator and medium-pressure steam separator is recycled to first low-pressure steam pipeline and first medium-pressure steam pipeline, greatly reduce the loss of steam, avoid condensate waste heat waste.

The invention relates to the technical field of union connecting structures, in particular to a union connecting structure for an outlet of a fracturing pump and a wing-shaped nut dismounting and mounting device. The union connecting structure comprises a union female head, a union male head and a wing-shaped nut, and a pressing auxiliary boss is arranged in the middle of the inner side of the wing-shaped nut; the male union head and the female union head are arranged on the two sides of the pressing auxiliary boss in a bilateral symmetry mode and connected with the inner side of the wing-shaped nut through threads, the male union head and the female union head are sealed through an outer sealing assembly and the wing-shaped nut, and the outer sealing assembly comprises a hard metal ring and a rubber seal. A hard metal ring and a rubber seal are sequentially arranged between the left end of the male union and the right side of the pressing auxiliary boss from left to right. The union is reasonable and compact in structure and convenient to use, direct contact is avoided when the male union head and the female union head are pressed by arranging the pressing auxiliary boss, shear stress and pressing stress existing in traditional connection are converted into single axial pressing force, material abrasion is greatly reduced, and the service life is prolonged.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.