251results about How to "Increase the itinerary" patented technology

A foldable pushing chain type lifting platform belongs to the technical field of pushing chains and lifting platforms and comprises a meshed pushing chain system, an X-axis limiting mechanism and a Y-axis limiting mechanism, one side of the bottom of the meshed pushing chain system is fixedly connected with a base, the meshed pushing chain system outputs pushing chains upwards in the Z-axis direction, and the X-axis limiting mechanism and the Y-axis limiting mechanism are fixedly connected with the base. The top end of the pushing chain is fixedly connected with a top table used for bearing a lifted object, an X-axis limiting mechanism is further connected between the top table and the base, and the side, away from the meshing type pushing chain system, of the X-axis limiting mechanism is connected with a Y-axis limiting mechanism. The X-axis limiting mechanism is of a folding arm structure which only rotates around the X axis and limits the pushing chain and the top table to move in the X-axis direction. According to the invention, the pushing chain is used as a driving part, and the device has the advantages of high speed, large bearing capacity, high precision, long maintenance period, multi-point control, good stability, low initial height, large stroke, small occupied space and strong environmental adaptability.

The invention relates to the technical field of mechanical transmission, and provides a connecting rod transmission mechanism and a mirror image engine. The connecting rod transmission mechanism comprises a power sliding block, a power connecting rod and two power pistons, the power connecting rod comprises a connecting rod base body and two linear rod parts, the linear rod parts extend in the first direction, the front end of each linear rod part is connected with one power piston, and the rear end of each linear rod part is fixedly connected with the connecting rod base body; the two linear rod parts are located on the two opposite sides of the connecting rod base body in the first direction, and the power sliding block is installed on the connecting rod base body in a sliding mode in the second direction. The linear rod part does not need to contain a bearing, rotation motion does not exist, the overall cross section is uniform or roughly uniform, standard sinusoidal motion / cosine motion is met, the size reduction design of the linear rod part and the air cylinder is facilitated, the compression ratio in the air cylinder is increased, the combustion efficiency is improved, the overall structure of the engine is more compact, and the needed engine cabin space is reduced. And the power-to-weight ratio and the acceleration performance of the vehicle can be improved.

The utility model discloses a hot air distributor for desulfurization waste water zero discharge and flue gas purification system, which comprises a flue gas inlet volute and a flue gas inlet distributor arranged at the bottom of the flue gas inlet volute, a flue gas inlet is arranged on the flue gas inlet volute, a flue is arranged in an inner cavity of the flue gas inlet volute along the path of the flue, and the flue gas inlet distributor is arranged on the flue gas inlet volute. Two guide pieces are arranged on the inner wall of the flue, a smoke outlet communicated with the flue is formed in the inner side wall of the bottom of the smoke inlet volute, the smoke inlet distributor comprises an inner cone, and the inner cone is provided with a heat insulation measure. According to the utility model, air or flue gas is uniformly distributed through the inlet flue gas distributor, so that good gas flow field distribution is realized when the air or the flue gas enters a container, the phenomenon of non-uniform gas distribution of the existing gas distributor is avoided, and the air is uniformly distributed through the two stages of guide vanes after entering the inlet flue gas distributor; the first guide vane ensures the uniformity of gas entering the second guide vane, and the second guide vane enables the air to form a swirling flow field given by design after entering the container through angle design.

The utility model relates to the technical field of transfer devices, in particular to a movable support with a folding handle and a household appliance. The inner moving part is arranged in the outer groove plate and can slide relative to the outer groove plate; the lifting mechanism is connected with the outer trough plate and the inner moving part, and when the inner moving part slides relative to the outer trough plate, the lifting mechanism enables the outer trough plate to ascend or descend; the wrench assembly comprises a rotating part, the rotating part is hinged to the outer groove plate and is in transmission connection with the inner moving part, and when the rotating part rotates, the rotating part drives the inner moving part to slide relative to the outer groove plate; the handle part is hinged to the rotating part through a first hinge point; the locking mechanism is used for enabling the handle part and the rotating part to rotate synchronously. According to the utility model, one part of the longer wrench assembly is folded, so that the storage, the packaging and the transportation are facilitated. The utility model also avoids the inconvenience that all the wrench assemblies need to be reassembled when the movable bracket is used.

A Chinese cabbage leaf removing and harvesting integrated device comprises a fixed frame, an overall lifting mechanism, a cutting mechanism, a clamping lifting mechanism and a movable conveying mechanism. The integral lifting mechanism comprises symmetrically arranged first lead screw sliding tables, pressing rings and at least two supporting plates, the cutting mechanism comprises symmetrically arranged second lead screw sliding tables, groove guide wheels, cutting wires and return springs, one ends of the cutting wires are connected with the second lead screw sliding tables, the other ends of the cutting wires pass through the groove guide wheels, the clamping lifting mechanism is connected with the clamping lifting mechanism, and the clamping lifting mechanism is connected with the clamping lifting mechanism. Comprising a clamping device installed on the clamping lifting mechanism, the pressing ring is driven by a motor to descend, the clamping device clamps Chinese cabbages, the cutting mechanism cuts and leaves are removed, and conveying of the Chinese cabbages is achieved. The whole structure is compact, the mechanical size is small, an integrated leaf removing and harvesting process suitable for Chinese cabbages is designed according to the appearance characteristics and physical properties of the Chinese cabbages, and refined harvesting is conducted through root cutting and harvesting.

The utility model discloses an electronic cigarette cartridge, an electronic cigarette holder, an electronic cigarette structure and an electronic cigarette, the electronic cigarette cartridge comprises a base and an oil bin, the two ends of the base are respectively provided with a butt joint part and a positioning part, the first side of the positioning part is provided with an oil bin positioning feature, the second side of the positioning part is provided with an electrode positioning groove, and the electronic cigarette holder comprises an inner shell, an outer cover and sealing silica gel. The sealing silica gel is clamped between the inner shell and the outer cover, and the outer cover is arranged outside the inner shell in a sleeving mode and connected with the inner shell in a clamped mode. The electronic cigarette structure comprises a shell, a cover body, an energy supply assembly and a smoke cartridge fixing assembly, a containing cavity is formed in the shell, and the cover body is in sliding connection with the shell; the electronic cigarette cartridge can be quickly butted and positioned, so that the butting of the electronic cigarette cartridge and the host is more stable, and unstable power supply is prevented; according to the electronic cigarette holder, a plurality of smoke cartridges share one sealing silica gel, so that the cost is saved, and tobacco tar leakage or external pollution can be avoided; according to the electronic cigarette structure, the mode that the electronic cigarette structure is clamped with the smoke cartridge is adopted, the smoke cartridge can be rapidly replaced, and multiple smoke cartridges can be carried.

The invention provides a high-capacity generator circuit breaker heat dissipation structure based on liquid metal heat dissipation and a working method, and the structure comprises a vacuum arc-extinguishing chamber heat dissipation device, a liquid metal diversion pipeline, and a liquid metal cooling circulation system. The vacuum arc-extinguishing chamber heat dissipation devices are arranged on the two sides of the vacuum arc-extinguishing chamber; the end part of the liquid metal flow guide pipeline is communicated with a liquid metal cooling circulation system; the vacuum arc-extinguishing chamber heat dissipation device is internally provided with heat dissipation fins; and the liquid metal flow guide pipeline is embedded in the radiating fins. The overall heat dissipation capability of the circuit breaker is improved by introducing the liquid metal, the heat dissipation structure of the vacuum arc-extinguishing chamber timely exports heat generated by the vacuum arc-extinguishing chamber, the heat is finally exported to the outside of the circuit breaker through circular flow of the liquid metal, the steady-state temperature rise during operation of the circuit breaker can be effectively reduced, and the service life of the circuit breaker is prolonged. The method is of great significance in improving the capacity of the generator circuit breaker and ensuring safe and reliable operation of the circuit breaker.

The invention relates to an oil-water separation device and an oil-water separation method, in particular to a novel integrated oil-water separation microbubble air flotation machine and an oil-water separation method, and aims to solve the problems that although the existing air flotation technology has remarkable advantages in treatment of an oil-water mixture, the oil-water separation effect is poor; however, the traditional air flotation equipment still has the defect of certain limitation in treatment efficiency and thoroughness in oil stain removal. According to the novel integrated oil-water separation microbubble air flotation machine, a multiphase flow pump is used for generating a large number of microbubbles, and oil dirt is promoted to float upwards; meanwhile, oil stains on the water surface are adsorbed through the oil stain adsorption material and extruded and recycled through the roller assembly, and the oil stain removal efficiency is effectively improved.

The invention provides a hydraulic brake system which comprises an oil can, a brake master cylinder, a pedal simulator, an electric supercharging device, a wheel brake unit, a brake pedal, a control unit and a backflow oil way, the two ends of the backflow oil way are connected with the oil can and a hydraulic cavity of the brake master cylinder respectively, and a backflow valve is arranged on the backflow oil way; the control unit is connected with the return valve and used for controlling opening and closing of the return valve according to the braking efficiency of the vehicle braking device during braking. When the backflow valve is opened, brake fluid in the hydraulic cavity of the brake master cylinder can flow back to the oil can through the backflow oil way. The hydraulic brake system can increase the stroke of the brake pedal when the brake efficiency of the vehicle brake device is attenuated, so that a driver can sense the attenuation of the brake efficiency. The invention further provides a vehicle.

A kiln tail powder coarse and fine screening device of a rotary kiln comprises a fixing plate, an inner cylinder is rotationally installed on the fixing plate, an outer cylinder is sleeved on the periphery of the inner cylinder, the outer cylinder is fixedly installed on the fixing plate, a plurality of supporting seats are fixedly installed on the bottom side of the outer cylinder, the heights of the supporting seats are sequentially reduced from left to right, and a feeding pipe is arranged on the fixing plate in a communicating mode. The device is simple in structure and ingenious in conception, materials can be conveyed without a negative pressure pump, the first spiral blade and the second spiral blade can rotate to convey the materials to the first discharging port and the second discharging port, and when the first spiral blade rotates, large and small particles mixed together can be turned over through friction force, so that the small particles penetrate through the sieve holes, and the material conveying efficiency is improved. And when the powder is screened, the first spiral blade and the second spiral blade rotate to scrape powder adhered to the inner wall and the outer wall of the inner barrel and the inner wall of the outer barrel, the market requirement is met, and the powder screening device is suitable for being popularized.

The invention relates to the technical field of water hammer power, in particular to a water hammer effect power system which comprises a pressure cylinder connected with a pressure water pipe, a pressure branch pipe is arranged on the pressure water pipe, a detonation valve is installed on the pressure branch pipe, the pressure cylinder is provided with a hollow cavity, and a piston is installed in the hollow cavity in a sliding mode. A piston rod is installed at the end, away from the pressure water pipe, of the piston, the piston rod penetrates out of the pressure cylinder and is in sliding connection with the pressure cylinder, a drainage cavity is formed in the hollow cavity and comprises a loosening ring and a drainage collecting ring, and a drainage opening is formed in the drainage collecting ring; after the loosening ring and the drained water collecting ring on the inner wall of the cylinder body are used for releasing water and pressure of pressure water in the system, the piston is quickly recovered to the position without impact and compression, and then the piston enters the next stamping stroke of the piston; through the function of the special structure of the loosening ring, energy generated by the water hammer can be obtained to the maximum extent, and the water hammer effect has the condition of becoming power.

The utility model relates to the technical field of mechanical anchor bolts, and discloses a position adjusting mechanism for a mechanical anchor bolt knocking and implanting device, which comprises two longitudinal adjusting mechanisms, a large-stroke transverse adjusting mechanism and an operation height adjusting mechanism, the longitudinal adjusting mechanism is used for adjusting the longitudinal position of single operation, the two large-stroke transverse adjusting mechanisms are arranged on the top of the longitudinal adjusting mechanism in a front-back mode, and the large-stroke transverse adjusting mechanisms are used for adjusting the transverse position of single operation. The number of the operation height adjusting mechanisms is two, and the operation height adjusting mechanisms are arranged on the top of the large-stroke transverse adjusting mechanism in a left-right mode. According to the position adjusting mechanism for the mechanical anchor bolt knocking and implanting device, the ball screw is driven to rotate by starting the longitudinal servo motor, so that the sliding table of the longitudinal adjusting mechanism moves back and forth along the linear guide rail, and the purpose of expanding the longitudinal coverage range of a single working face is achieved.

The clamping tool for the sand casting ball valve blank comprises an air cylinder, a fixing plate, a driving disc, a driving rod, a driven rod and a clamping jaw, and the fixing plate is fixedly arranged on the peripheral face of a cylinder body of the air cylinder in a sleeving mode; a plurality of racks parallel to the axis of the piston rod are fixed on the peripheral wall of the driving disc; the number of the driving rods is multiple, sector gears are fixed to one ends of the multiple driving rods, the tooth ends of the multiple sector gears are meshed with the multiple racks in a one-to-one correspondence mode, and the connecting positions of the sector gears and the driving rods are rotationally connected to the bottom face of the fixing plate; a rod body of the driven rod is fixed at the other end of the driving rod; the clamping jaw is fixed to one end of the driven rod so as to clamp a sand casting ball valve blank. The clamping device has the advantages of being large in load, large in stroke and accurate in positioning, can flexibly clamp ball valves of multiple varieties and specifications, and is wider in application range.

The invention discloses a full-automatic horizontal machining center, and belongs to the technical field of machine tools, the full-automatic horizontal machining center comprises a square frame, a cutter feeding system, a cradle, a left supporting seat, a right supporting seat, a servo rotation driving device and a brake device, the cutter feeding system is arranged on the square frame, the cradle is used for clamping and bearing a machined workpiece, and the left supporting seat is arranged on the right supporting seat; the left supporting seat and the right supporting seat are arranged at the left end and the right end of the square frame, a left supporting shaft on the cradle is installed on the left supporting seat through a bearing, a right supporting shaft on the cradle is installed on the right supporting seat through a bearing, the left supporting shaft and the right supporting shaft are coaxially installed, and the servo rotation driving device is used for driving the left supporting shaft to rotate. The brake device is used for limiting rotation of the right supporting shaft. The cradle is of a latticed frame plate structure made of materials which are light in weight and high in bearing capacity. According to the cradle, the latticed frame plate structural design is adopted, a horizontal rotating system of the cradle is moved away, the weight of the cradle is greatly reduced, the moving inertia is reduced, the displacement precision of the cradle is improved, and therefore the machining precision and stability of the machining center are improved.

The invention discloses a wheel foot leg with a double-buffering structure and a wheel foot robot, and relates to the technical field of robots. The invention aims to solve the problem of insufficient buffering performance caused by small size of an elastic element and limited buffering stroke of the existing wheel-foot type robot. The buffering type wheel foot leg comprises a knee joint motor, a knee joint crank, a knee joint connecting rod, a thigh, a shank, a hub motor, a knee joint buffering mechanism and a leg buffering mechanism, a knee joint motor output shaft of the knee joint motor is fixedly connected with one end of the knee joint crank, and the other end of the knee joint crank is rotationally connected with the upper end of the shank through the knee joint connecting rod; the upper end of the thigh is fixedly connected with the knee joint motor through the thigh flange, the lower end of the thigh is rotationally connected with the upper side of the shank, the lower end of the shank is connected with the hub motor, the knee joint buffering mechanism is arranged between the thigh and the knee joint crank to achieve buffering of the knee joint, and the leg buffering mechanism is arranged between the thigh and the shank to achieve buffering of the leg. The invention is used for the foot-type robot.

The invention belongs to a carbon dioxide storage and goaf coal spontaneous combustion prevention and control technology, and particularly relates to a coal spontaneous combustion prevention and control system through coal ash mineralization CO2 and products and an application method of the coal spontaneous combustion prevention and control system. The system comprises a slurry preparation unit, a flue gas pretreatment unit, a mineralization reaction unit and a slurry filling unit; fly ash treatment, CO2 capture and mineralization and mine grouting fire prevention and extinguishing are combined, alkaline earth metal ions in fly ash are promoted to be leached through a pulping stirring tank, CO2 in reaction flue gas is mineralized through calcium and magnesium ions in slurry, CO2 dissolution is promoted through pressurization, an impeller is arranged in a reactor, gas spirally ascends in the ascending process, and the gas is recycled. According to the method, the coal ash slurry serves as a gas inlet, the stroke of the gas in the slurry is increased, the retention time is prolonged, gas, liquid and solid mixing is promoted, meanwhile, the additive is combined to improve the mineralization reaction efficiency, continuous CO2 mineralization of the large-flow coal ash slurry is finally achieved, a product is injected into an underground goaf to be used for preventing and controlling coal spontaneous combustion, and then the multiple effects of coal ash solid waste treatment, CO2 emission reduction and disaster prevention and control are achieved.

The invention discloses an electro-hydraulic dynamic and static integrated fatigue test system for a special environment, and relates to the technical field of fatigue test detection of metal materials, in particular to an electro-hydraulic dynamic and static integrated fatigue test system for a special environment, comprising: a bearing assembly comprising a first bearing beam and a second bearing beam which are relatively fixed; the static load loading assembly comprises a loading beam and a lead screw power mechanism for driving the loading beam to move, the moving direction of the loading beam is consistent with the direction of a connecting line of the first bearing beam and the second bearing beam, and the lead screw power mechanism is fixedly arranged relative to the first bearing beam or the second bearing beam; and the dynamic load loading assembly comprises a static pressure actuator, the static pressure actuator and the first bearing beam or the second bearing beam are relatively and fixedly arranged, and the force application axis direction of the static pressure actuator is consistent with the movement direction of the loading beam.

The utility model relates to a tower top structure for reducing gas entrainment of a desulfurizing tower, which comprises a gas-liquid separation device and a gas outlet pipe, and the gas outlet pipe is fixedly connected to the top of the desulfurizing tower and arranged above a gravity liquid distributor; the gas-liquid separation device is arranged in a variable-diameter space at the top of the desulfurization tower and comprises an outer cylinder, an inner cylinder, a rotational flow guide plate and a liquid discharge pipe, the gas outlet pipe is arranged in the inner cylinder, the outer cylinder is arranged outside the inner cylinder, the bottoms of the inner cylinder and the outer cylinder are of closed structures, the rotational flow guide plate is arranged at the bottom of the outer cylinder, and the liquid discharge pipe is arranged in the rotational flow guide plate. A guide window is formed in the upper part of the inner cylinder; a space is reserved between the bottom end of the gas outlet pipe and the bottom of the inner cylinder; and the bottoms of the outer cylinder and the inner cylinder are connected with liquid discharge pipes. The device has the advantages that the variable-diameter structure space at the top of the desulfurizing tower is fully utilized, secondary cyclone separation of coal gas is realized, the purpose of separating entrained desulfurizing liquid drops from the coal gas is realized, and the entrainment problem of the coal gas is solved.

The utility model aims to provide a large-stroke three-axis camera driving device. The large-stroke three-axis camera driving device comprises a protective shell, a base, a carrier assembly, an upper cover, an elastic sheet connecting piece, a focusing driving assembly and an anti-shake driving assembly, the anti-shake driving assembly comprises a first anti-shake driving magnet, a second anti-shake driving magnet and an anti-shake driving coil; wherein the first anti-shake driving magnet, the second anti-shake driving magnet and the anti-shake driving coil are correspondingly arranged. The utility model relates to the technical field of camera devices, in the OIS anti-shake direction, a mode that the first anti-shake driving magnet and the second anti-shake driving magnet which are arranged on the upper layer and the lower layer are matched with the anti-shake driving coil located in the middle of the two magnets is adopted, and the thrust of the double-layer magnets can be twice that of single-layer driving, so that the stroke in the OIS direction is greatly improved; and the requirements of long stroke and large weight of the VA motor can be met simultaneously.

The invention relates to the technical field of sorghum processing, in particular to a sorghum slow-descending type hot air drying device which comprises a cabinet body, a feeding port is formed in the cabinet body, a first material guide plate and a second material guide plate are arranged in the cabinet body, and the first material guide plate and the second material guide plate are arranged in a staggered mode; filter screens are embedded in the first material guide plate and the second material guide plate, and a discharge port matched with the first material guide plate and the second material guide plate is formed in the lower end of the cabinet body; a hot air mechanism is arranged on the cabinet body, a hot air opening communicated with the hot air mechanism is formed in the cabinet body, a waste discharge mechanism matched with the filter screen is arranged on the cabinet body, and through staggered arrangement of a first material guide plate and a second material guide plate, sorghum gradually moves downwards along the first material guide plate and the second material guide plate under the action of gravity; the stroke of the sorghum is increased, the sorghum is effectively dried by hot air, meanwhile, the sorghum is prevented from being damaged and broken due to intense collision caused by stirring and the like, and the condition of the sorghum product is improved.

The utility model discloses a waste denitration catalyst reclaimed material screening device, and relates to the technical field of waste denitration catalyst reclaimed material screening, in particular to a screening device shell, the outer surface of a center rod is rotationally connected with a screen barrel through a bearing, and the inner side wall of the screen barrel is provided with an arc-shaped driving piece through a supporting frame. An adjusting shaft is rotatably connected to the inner side wall of the center rod, a telescopic outer pipe is arranged on the outer surface of the center rod, a rectangular sleeve is rotatably connected to the inner side wall of the telescopic outer pipe, a rectangular limiting rod is inserted into the inner side wall of the rectangular sleeve, a knocking block is slidably connected to the inner side wall of the telescopic outer pipe, and an adjusting rod is rotatably connected to the inner side wall of the knocking block; an eccentric block is arranged at one end of the adjusting rod, a telescopic inner rod is arranged at one end of the telescopic outer pipe, and an arc-shaped smashing piece is arranged at one end of the telescopic inner rod. The device has the beneficial effects that the screening efficiency is effectively improved, the knocking and smashing force is conveniently adjusted, and filtering holes are conveniently cleaned to prevent blockage.

The invention discloses a double-shaft buffer hinge, and belongs to the technical field of buffer hinges. A double-shaft buffer hinge comprises a fixed swing leaf, a hinge body and a hinge body. The movable swing leaf is rotationally connected to the fixed swing leaf; the rotating sleeve is fixedly connected to the movable swing leaf; the cam is fixedly connected to the fixed swing leaf; the hydraulic oil cylinder is fixedly connected in the cam; the first positioning pin is fixedly connected to the driving end of the hydraulic oil cylinder; the sliding groove is formed in the cam; the first positioning pin is matched with a sliding groove in the cam. A spring sleeve is fixedly connected to the interior of the fixed swing leaf, a compression spring is fixedly connected to the interior of the spring sleeve, a second positioning pin is fixedly connected to the compression spring, and the second positioning pin is matched with a sliding groove in the cam; the hydraulic oil cylinder and the compression spring which are arranged in the device are matched for use, so that the first positioning pin and the second positioning pin can synchronously move on the cam, the stroke of the hydraulic oil cylinder can be effectively increased, and the buffering effect is further improved.

This application relates to the field of refrigerator technology and discloses a drawer assembly, including: a drawer body that can be pushed and pulled and has a maximum pull-out position; a slide body located on one side of the drawer body and including a first slide groove; a support arm, the first end of which is hinged to the side of the drawer body, and the second end of which is provided with a first sliding member located in the first slide groove; and when the drawer body moves, the support arm drives the first sliding member to move along the first slide groove, and at the maximum pull-out position, the support arm can provide support for the drawer body. This application also discloses a refrigerator.

The invention discloses a chemical-corrosion-resistant ceramic general filler, belongs to the technical field of ceramic fillers, and aims to solve the problem that gas and liquid cannot fully react due to the fact that the residence time effect of the ceramic filler on the gas and the liquid is short, the chemical-corrosion-resistant ceramic general filler comprises a shell, and a first inner ring is arranged in the shell; a plurality of evenly-distributed first separation rings are fixed to the inner side wall of the first inner ring, a second inner ring is arranged in the first inner ring, and a plurality of evenly-distributed second separation rings are fixed to the outer side wall of the second inner ring. A first separation ring, a second separation ring, a third separation ring, a fourth separation ring, a fifth separation ring and a sixth separation ring are arranged among a first inner ring, a second inner ring, a third inner ring and a fourth inner ring, so that when the ceramic packing is vertically placed, gas or liquid moves among the first inner ring, the second inner ring, the third inner ring and the fourth inner ring, and the gas or the liquid can be separated from the first inner ring, the second inner ring, the third inner ring and the fourth inner ring; the stroke can be increased, so that the residence time of gas and liquid is prolonged, and the gas and the liquid are fully reacted.

The present invention provides a flue gas heat exchanger and system for nonferrous smelting industry. The heat exchanger comprises a shell, and the heat exchanger shell comprises an upper box, a middle box, and an ash hopper. The middle box is disassembled to set a heat dissipation pipe, and a dust cleaning mechanism is arranged in the upper box, and an ash hopper is arranged below the heat dissipation pipe. A partition plate is arranged in the heat exchanger, and the partition plate separates the upper box into upper box I and upper box II, and separates the middle box into middle box I and middle box II. One of the upper box I and upper box II is connected to the flue gas inlet, and the other is connected to the flue gas outlet. The middle box I and the middle box II are connected through the ash hopper. The high-temperature flue gas goes through the shell process, and the high-temperature flue gas forms dust accumulation on the outer wall of the heat dissipation pipe, so that the dust cleaning chain can clean the dust accumulation on the outer wall of the heat dissipation pipe, and the cleaned dust accumulation falls into the ash hopper below the heat dissipation pipe, and the ash hopper can collect the dust accumulation conveniently. The flue gas cooling equipment is aimed at the flue gas temperature, strong corrosion, and high smoke dust concentration in the nonferrous smelting industry under harsh working conditions.

An ultra-long-range phase change injection oil production device includes tubing that passes through a wellhead flange and is inserted into a casing. A crude oil outlet is located at the upper end of the tubing, and a lower check valve is located at the lower end, ensuring that water-bearing crude oil can only enter the tubing from the casing. A heating device is located inside the tubing, above the lower check valve, to heat the water-bearing crude oil entering the tubing and generate steam. A limiting sleeve is located at the lower part of the tubing, and a sliding lifter is supported on the limiting sleeve. The sliding lifter has a sliding clearance fit with the inner wall of the tubing and slides upward under the action of steam, thereby pushing the water-bearing crude oil upward. An upper check valve is located on the tubing, above the sliding lifter, ensuring that the water-bearing crude oil, after being pushed upward, can only enter the upper part of the tubing from bottom to top through the upper check valve. The advantages are: low mechanical wear throughout the operation, high reliability, long stroke of the sliding lifter, high working efficiency, and low operating noise; moreover, it eliminates the need for a wellhead heating device, resulting in low oil production costs.

The utility model discloses a pulley driving and guiding structure for an adjustable telescopic arm, and relates to a pulley driving and guiding structure, in particular to the pulley driving and guiding structure for the adjustable telescopic arm. The utility model aims to solve the problem that a sliding telescopic arm and a sleeved telescopic arm can generate a retardation phenomenon after being used for a period of time, so that the telescopic stability is influenced. The device comprises an extension steel wire, a contraction steel wire, a second-section arm front pulley combination, a second-section arm fixed pulley combination, a third-section arm front pulley combination, a third-section arm fixed pulley combination, a fourth-section arm front pulley combination, a fourth-section arm fixed pulley combination, a first-section arm pulley combination, a second-section arm movable pulley combination and a second-section arm pulley combination, and the third arm movable pulley assembly is combined with the third arm pulley assembly. The utility model belongs to the field of machinery.

The utility model relates to the field of electric cylinders, in particular to a precise two-stage bevel gear electric cylinder. The device comprises a mounting assembly, a second-stage screw rod, an outer cylinder barrel, a first-stage telescopic assembly, a second-stage telescopic assembly, a connecting seat and a driving mechanism, a first-stage screw rod is rotationally mounted on the mounting assembly and is provided with an external spline; the outer cylinder barrel is arranged at the top of the mounting assembly; the first-stage telescopic assembly is in threaded connection with the first-stage lead screw and is arranged on the outer air cylinder barrel in the vertical direction in a sliding mode. The second-stage screw rod is of a hollow structure, is provided with an internal spline matched with the external spline and is arranged on the first-stage screw rod in a sleeving manner; the second-stage telescopic assembly is in threaded connection with the second-stage lead screw and is arranged on the first-stage telescopic assembly in the vertical direction in a sliding mode. The connecting base is connected to the top end of the second-stage telescopic assembly. The driving mechanism is used for driving the first-stage lead screw to rotate. The two-stage electric cylinder can achieve two-stage transmission, and the stroke obtained by the two-stage electric cylinder is far larger than the stroke obtained by a single-stage electric cylinder in the same installation space.

The invention relates to the field of food processors and discloses an ice cream shaving device. The technical solution thereof mainly comprises an upper shell and a lower shell, wherein a main machine mechanism is arranged in the lower shell, and a spiral groove is arranged on the inner side surface of the shell. Since the height of the shell is relatively large, the lifting distance of the shaft body is increased and the stroke is enlarged. On the one hand, the capacity of ice that can be placed in the cover shell is increased, and on the other hand, the stroke of the blade is increased, so that a large amount of ice can be made into ice smoothies. Compared with the shaft body stroke that cannot be lifted or has a short lifting distance, the processing range of ice is wider, and the ice on the top of the cover shell will not be difficult or even impossible to cut. In addition, the output shaft of the motor extends upward and enters the upper plate. When disassembling and assembling, the upper plate and the chuck are separated so that the output shaft of the motor is exposed, and the output shaft of the motor can be connected to the transmission mechanism of other food processors through the output shaft of the motor to meet the requirements of food processors with different speeds.

The invention relates to a method for stacking steel bar truss floor decks; the method comprises the following steps: S1. loading: the steel bar truss floor decks are transported to a first station by a conveying device along an X-axis direction; S2. lifting: the odd-numbered boards are lifted to a second station by a lifting device along a Y-axis direction; S3. pushing: the odd-numbered boards are pushed to a third station by a pushing device along a Z-axis direction, and after completion, the S1 operation is repeated; S4. flipping: the even-numbered boards are flipped to the previous odd-numbered boards by a flipping device; the height displacement generated after the flipping of the even-numbered boards is equal to twice the value of the turning radius of the flipping device; S5. descending: the board located at the third station descends along the Y-axis direction with the lifting device, and at this time, the position of the bottom mold frame of the top even-numbered boards is the new third station; the invention breaks through the limitation of the height of the conveying device on the stacking height, ensures that the conveying device is at the same height as the assembly line workbench, improves the stacking height and stacking efficiency, and reduces the equipment cost.