1033results about How to "Reduce resistance" patented technology

The invention relates to a wheel device, a vehicle having the wheel device and a method of controlling the wheel device. The wheel device comprises a wheel body, a cover element and a transmission assembly. The wheel body is provided with a plurality of spokes which are arranged at intervals at a preset angle, and a through opening through which air can pass is formed between every two adjacent spokes; the cover element can cover the side face of the wheel body in a rotating mode relative to the wheel body around the rotating axis of the wheel body and is provided with at least one hole opening area. A transmission assembly is disposed between the wheel body and the shroud element and is configured to rotate the shroud element relative to the wheel body about a rotational axis of the wheel body when a rotational speed of the wheel body is greater than a predetermined threshold, therefore, the through opening of the wheel body is converted from an open state in which the through opening overlaps with the orifice area to a blocked state in which the through opening does not overlap with the orifice area. The invention has the advantages of reducing air resistance, increasing endurance mileage or fuel efficiency, and improving cooling performance, braking performance and appearance design.

This invention discloses a thickener with a sealing mechanism, relating to the field of thickener technology. The invention includes a thickener body, a rotating shaft, a rake frame, and a movable box. The mixing mechanism includes a mixing rod with a spiral blade fixed to it, and a sealing mechanism also fixed to the mixing rod. A shifting mechanism is slidably disposed on the outer circumference of the rotating shaft. The rotating shaft drives the movable box to rotate, thereby causing the friction wheel to drive the mixing rod and spiral blade to rotate and mix the slurry, ensuring thorough mixing of the flocculant and slurry. The rotating shaft drives the dispersion disc to rotate, which can disperse the slurry to various positions within the thickener body, ensuring the flocculant is also evenly distributed within the thickener body. The shifting mechanism causes the dispersion disc to rise, reducing the opening of the discharge tank and thus decreasing the discharge speed. The movable box moves downwards, making the mixing rod parallel to the bottom of the thickener body. At this time, the rotating spiral blade stirs up the mud layer at the bottom of the thickener body, reducing the resistance on the rake frame and preventing deformation or jamming of the rake frame.

The embodiment of the application provides a kind of amphibious robot for water quality detection, belong to robot technical field.Amphibious robot includes disc-shaped main body, main body support, propeller array, water quality detection probe and high-definition camera;Disc-shaped main body includes the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first surface of the first

The application provides a focusing motor and a camera module. The focusing motor comprises a fixed part, a moving part, a focusing assembly, a magnetic attraction sensing part, a guide part and a position sensor. The fixed part comprises a first support arm and a second support arm connected with each other, and a light passage hole formed between the first support arm and the second support arm. The moving part is arranged in the light passage hole and can move in a preset direction. The magnetic attraction sensing part is arranged in the moving part. The angle between the magnetization direction of the magnetic attraction sensing part and the first direction and the second direction perpendicular to the preset direction is an acute angle. The guide part is arranged on the first support arm and corresponds to the magnetic attraction sensing part. The position sensor is arranged on the second support arm and corresponds to the magnetic attraction sensing part. The position sensor can generate an induction force with the magnetic attraction sensing part, so that the position sensor can sense the moving position of the moving part. The focusing motor can significantly reduce the size of the focusing motor, and can guarantee the guiding stability and the position detection precision required by the automatic focusing function while realizing the miniaturization of the camera module.

The invention provides an electrochemical method, an electrode and a system for synthesizing hydrogen peroxide without aeration, and relates to the technical field of electrochemical preparation of hydrogen peroxide. The multistage hole penetrating type cathode with a specific multistage hole channel structure is adopted, the oxygen-containing electrolyte penetrates through the multistage hole penetrating type cathode for electrochemical reaction under the non-aeration condition, dissolved oxygen in fluid is forced to make efficient contact with catalytic active sites through the multistage hole channel structure, the mass transfer process is greatly enhanced, and the catalytic activity of the catalyst is improved. And the diffusion limitation of the traditional flow-through electrode is overcome. And meanwhile, the structure required for synthesizing hydrogen peroxide is simplified by an aeration-free operation mode, and the energy consumption and the cost are reduced. Finally, through the synergistic effect of the technical characteristics, the high-yield and high-flux synchronous output of hydrogen peroxide can be realized under the condition that an expensive catalyst and external gas aeration are not needed.

This invention relates to a self-leveling rotary transport device and method for docking and transferring multiple AUVs, belonging to the field of underwater robot equipment. It includes a docking module, a vertical transport module, and a rotary transport module. The docking module includes a rotary platform with a guide frame, and a first clamping device is provided on the top surface of the rotary platform. A vertical transport module is installed on one side of the docking module. The vertical transport module includes a liftable transport platform, and a locking device and a second clamping device are provided on the transport platform. The rotary transport module is installed below the docking module. The rotary transport module includes multi-branch shafts and horizontal plates installed on each set of branch shafts. An AUV charging and information interaction device and a third clamping device are arranged on the horizontal plates. This device increases the number of AUVs that can be docked and transferred, and can maintain the horizontal position of the AUVs during transfer, preparing them for subsequent actions such as AUV unloading. This invention also uses a separate rotary drive for the docking part to reduce the rotational resistance of the mechanism in seawater.

The invention belongs to the technical field of grinding wheel abrasives, and particularly relates to a diamond porous microsphere, a grinding wheel abrasive and a preparation method and application thereof. The preparation raw materials of the diamond porous microspheres comprise mixed powder, a binder and water, the mixed powder comprises a first ceramic bond, diamond and a pore forming agent. The first ceramic bond, the diamond and the pore forming agent are used as raw materials for preparing the diamond porous microspheres, the diamond porous microspheres have natural pores and prefabricated spherical pores, the porosity is high, and the self-sharpening performance of the grinding wheel grinding material can be improved; the grinding wheel abrasive material is prepared through secondary air degreasing sintering of the diamond porous microspheres, a new three-dimensional pore structure is formed among the naturally stacked diamond porous microspheres, the grinding wheel abrasive material with a'natural pore + prefabricated spherical pore + stacked pore 'multi-stage pore structure is obtained, the cooling, lubricating and chip removal effects of a grinding wheel can be greatly improved, and the service life of the grinding wheel is prolonged. Therefore, the grinding performance and the service life of the grinding wheel are improved.

The utility model discloses a kind of belt conveyor carrier roller dismounting auxiliary devices, including the belt upper top mechanism of belt upper top;The belt upper top mechanism includes fixed support, and the both ends of fixed support are respectively hinged and installed with the side push structure of belt side push;Side push structure includes side push support, and the side push support is hinged and installed with adjusting support, and adjusting support is adjustably installed on fixed support;The outer end of the adjusting support is hinged and installed with the support top structure of push side push support;The belt upper top mechanism further includes the jacking structure for vertically jacking belt installed on fixed support. Through the mode, not only in the process of carrier roller maintenance, dismounting in the way of labor-saving, in simple, operation difficulty low way, belt is jacked up, after jacking, the posture of belt can be kept stable unchanged, to greatly improve the safety of operation, simultaneously, improve the efficiency of dismounting, maintenance carrier roller.

The utility model discloses a wireless charging equipment, including first casing, first wireless charging subassembly, torsional spring, first concave and convex wheel, second concave and convex wheel and elastic part, first casing is equipped with and places the groove, and first wireless charging subassembly includes shell and first coil, and the rotating end of shell is rotated and is connected with first casing through the pivot, and the pivot includes the first axle section and the second axle section who sets up along the pivot axle line direction, and first coil sets up in the inside of shell, and torsional spring is covered and is set in the first axle section, and first concave and convex wheel sliding cover is set in the second axle section, and second concave and convex wheel cover is set in the second axle section, and with second axle section fixed, and elastic part cover is set in the second axle section. Adopt the wireless charging equipment of utility model embodiment, and first wireless charging subassembly can provide enough support force to place electronic equipment after protruding in the recess, and wireless charging subassembly does not need to overcome the big torsion when accomodating, to solve the problem that the current wireless charging equipment uses the experience to be poor.

The present application relates to the technical field of adsorption control, in particular to an intelligent control method and control system for an adsorption machine based on outlet concentration feedback, comprising: obtaining outlet concentration information in an outlet concentration sensor, tower pressure difference information of each adsorption tower, feedback state information of each valve, running state information of a blower, desorption temperature information in a desorption temperature sensor, and adsorption cycle time information recorded by a timer, the outlet concentration information being used to indicate the current outlet gas concentration of the adsorption machine; determining whether the adsorption machine needs to switch adsorption according to the outlet concentration information. The present application automatically determines whether the adsorption tower needs to be switched by real-time monitoring of the outlet concentration and comparing with a first preset concentration threshold, thereby avoiding emission exceeding the standard due to saturation of the adsorbent; the whole switching process adopts step-by-step timing and valve state feedback closed-loop control, thereby ensuring continuous and stable operation of the adsorption machine under different loads and significantly reducing the concentration fluctuation of the product gas.

The vacuum cup unlocking structure is characterized in that the vacuum cup unlocking structure comprises a cup cover, a circuit board and a battery electrically connected with the circuit board are arranged in the cup cover, a motor is fixedly arranged on the cup cover, the motor is electrically connected with the circuit board, the output end of the motor is connected with a cam, and the cam is electrically connected with the circuit board. A cam is arranged in the cup cover, a sliding part is further arranged in the movement range of the cam, the sliding part is arranged in the cup cover in a sliding mode, a lock hook is further arranged in the movement range of the sliding part, the lock hook is rotationally arranged in the cup cover, and the acting end of the lock hook is exposed out of the cup cover; by the adoption of the method, intelligent unlocking of the cup cover can be achieved through cooperation of the cam, the sliding part and the lock hook, resistance generated during unlocking can be reduced through the cooperation mode of the sliding part and the lock hook, the use stability of the unlocking structure is ensured, meanwhile, the torsion requirement of the motor can be lowered, and therefore the production cost is reduced, and the structural design is reasonable and simpler.

The utility model relates to the technical field of takeoff and landing protection equipment, and discloses takeoff and landing protection equipment for an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, and a display connection signal screen is fixedly mounted on the outer wall of the unmanned aerial vehicle body. The foldable light and thin mounting plate is rapidly folded and unfolded through the rotating hinge and the small hydraulic push rod, in the flight state, the mounting plate is folded and tightly attached to the fuselage, air resistance is effectively reduced, the flight efficiency is improved, before landing, the hydraulic push rod rapidly pushes the mounting plate to be unfolded to the horizontal position, and the supporting area is enlarged; the unmanned aerial vehicle is in direct contact with the ground in cooperation with an anti-skid balancing weight, the friction force between the unmanned aerial vehicle and the ground is increased, the unmanned aerial vehicle is effectively prevented from sliding or rollover after landing, meanwhile, an inflation pump is arranged in an inflation box to inflate a buffering air bag, a flexible protection layer surrounding the unmanned aerial vehicle is formed, falling impact is effectively relieved, and the unmanned aerial vehicle is protected from falling. And the effect of improving the protection safety is achieved.

This utility model discloses a hydraulic pump with a capsule-type pumping mechanism, relating to the field of hydraulic pump technology. The utility model includes a housing, with a fixing plate fixedly connected to the front side of the housing via a second bolt. A capsule push-pull plate is movably connected to the rear side of the fixing plate via a guide rod. This utility model drives the capsule push-pull plate to move back and forth via a drive shaft, reciprocatingly pushing and pulling the pumping capsule. This allows liquid to be drawn into the pumping capsule from the inlet branch pipe and pumped out from the outlet branch pipe. The structure is simpler and easier to assemble and process. The ball bearings convert the sliding friction between the capsule push-pull plate and the pumping mechanism into rolling friction, reducing resistance and wear between the plates. The roller sleeves convert the sliding friction between the connecting column and the T-shaped connecting bracket into rolling friction, further reducing resistance and wear and extending the service life of the hydraulic pump.

This invention discloses a water utilization expansion joint with a one-way check valve, relating to the field of pipeline compensation technology. The water utilization expansion joint includes an inlet connecting ring and an outlet connecting ring. When used in deep burial applications, the water utilization expansion joint of this invention, through the cooperation of protective components, shielding components, one-way flow guiding components, and treatment components, can guide accumulated groundwater into the interior of the expansion joint, preventing the accumulation of large amounts of groundwater on the outside of the bellows from affecting its use and facilitating the normal operation of the expansion joint. Furthermore, during the flow guiding process, the installation and protective components reduce resistance to the water flow, ensuring smoother one-way flow drainage, and preventing backflow of high-pressure water from directly impacting the interior of the one-way check valve and damaging its internal valve core components, thus ensuring stable operation of the one-way check valve.

The utility model relates to the field of bath heaters, in particular to a novel bath heater which comprises a main machine and a cover plate, the cover plate is arranged at the upper end of the main machine, the main machine comprises a box body, an air inlet assembly, an air exhaust assembly and a PTC heating assembly, the air inlet assembly sucks indoor air, the air exhaust assembly and the PTC heating assembly are arranged in the box body, and the air is heated by the PTC heating assembly and then blown into a room through the air inlet assembly. The exhaust assembly exhausts indoor air to the outside, the PTC heating assembly comprises a shell and a PTC module, the PTC module is arranged in the shell, the shell is installed on the inner side of the cover plate, the widths of the two ends of the section of the shell are gradually decreased upwards, staggered reinforcing ribs are arranged on the end face of the shell, and the PTC module is arranged in the shell. The upper middle part of the cover plate is provided with a mesh enclosure which corresponds to the air inlet assembly and the exhaust assembly and is provided with a barrier strip, the rear side of the middle part of the cover plate is provided with a cavity for accommodating a wiring module, the outer side of the cavity is buckled with a wire outlet cover, and two ends of the wire outlet cover are provided with wire outlet holes.

The utility model discloses a full-bore eccentric ball valve with a flow guide hole, which relates to the technical field of ball valves and comprises a valve body, a valve rod, a valve core and a sealing body, the flow guide hole is arranged on the valve core, sealing air bag rings are arranged on the valve core and positioned at openings at two ends of the flow guide hole, and an inflating component connected with the sealing air bag rings is arranged outside the valve core. A sleeve is arranged outside the valve element, the valve rod is rotationally connected to the sleeve, a reset spring is connected between the sleeve and the valve rod, and an extrusion piece used for extruding the inflation assembly is arranged on the valve rod. When the valve is opened, the two ends of the flow guide hole are sealed with the openings in the two sides of the valve body respectively, so that a medium is prevented from rushing into a cavity between the valve body and the valve element in the process of passing through the flow guide hole, vibration and noise generated by the valve in the medium circulation process are effectively reduced, and the service life of the valve is prolonged. And meanwhile, the flowing resistance of the medium can be reduced to a certain extent, and the stability of the medium passing through the valve is improved.

The application relates to the technical field of electronic atomization, and more specifically to an atomizer, an atomization device and an atomization equipment. The atomizer comprises a shell assembly, a suction nozzle piece, a liquid storage piece, an atomization core assembly and a metal air channel pipe. The shell assembly has opposite first and second ends along the axial direction of the shell assembly. The shell assembly has a liquid storage cavity, and the liquid storage cavity is arranged close to the second end. The suction nozzle piece is arranged at the first end, and the suction nozzle piece has an air outlet channel. The liquid storage piece is arranged in the liquid storage cavity and is used for pre-storing an atomization base material. The atomization core assembly is arranged in the liquid storage piece and is used for heating the atomization base material to generate an aerosol. The atomization core assembly has an atomization channel. One end of the metal air channel pipe is communicated with the air outlet channel, the other end of the metal air channel pipe is communicated with the atomization channel, and the metal air channel pipe is arranged in a spaced mode with the liquid storage piece. The metal air channel pipe can effectively improve the taste of the aerosol, thereby improving the experience of a user. Meanwhile, the spaced arrangement of the metal air channel pipe and the liquid storage piece can effectively reduce the risk of atomization base material leakage.

The utility model provides a bearing mechanism and a transfer device. The bearing mechanism comprises a bearing plate and a guide assembly. One face of the bearing plate is fixedly connected with the lifting end of the lifting mechanism. The guide assembly comprises a plurality of universal ball parts, each universal ball part comprises a limiting base and a rolling ball, the multiple limiting bases are arranged on the other face of the bearing plate at intervals, a ball limiting rotating groove is formed in each limiting base, and each rolling ball is limited in the corresponding ball limiting rotating groove. And each rolling bead is rotationally connected with the corresponding limiting base.

This application relates to a liquid cooling plate, a liquid cooling module, and a computing device. The liquid cooling plate of this application includes a base plate, a cover plate, and a fluid driving assembly. The cover plate covers the base plate, and a sealed liquid cooling cavity is provided between the cover plate and the base plate. The cover plate also has an input port and an output port, both of which communicate with the liquid cooling cavity. The input port is used to input liquid cooling fluid into the liquid cooling cavity, and the output port is used to output liquid cooling fluid from the liquid cooling cavity. The fluid driving assembly is disposed in a first groove and is used to accelerate the flow rate of the liquid cooling fluid. The liquid cooling plate, liquid cooling module, and computing device of this application have the advantages of high heat dissipation performance and high efficiency.

The utility model discloses a kind of gas generating set radiators, including water inlet chamber, oil inlet chamber and air inlet chamber connected in order from head to tail, water inlet chamber, oil inlet chamber and air inlet chamber form annular structure;Water inlet chamber, oil inlet chamber and the lower side of air inlet chamber are installed with water return chamber, oil return chamber and air return chamber connected in order from head to tail, water inlet chamber and water return chamber, oil inlet chamber and oil return chamber, air inlet chamber and air return chamber between are all installed with radiating core body;The inner ring of annular structure formed by water inlet chamber, oil inlet chamber and air inlet chamber is fixedly installed with conic shell, conic shell is fixedly installed with straight cylinder shell being set along vertical direction, straight cylinder shell inner chamber bottom is installed with upward suction axial fan of gas.The gas generating set radiator provided by the utility model can solve the problems of low integration of various medium heat dissipation and high airflow resistance and energy consumption in the heat dissipation process.

The invention provides a vertical power module heat dissipation device and method and an aircraft, and belongs to the technical field of aircrafts, and the heat dissipation device comprises a heat exchanger fairing and a heat exchanger; the heat exchanger fairing is in a streamline shape with two sharp ends and a wide middle, the two ends of the heat exchanger fairing are fixedly arranged on the power arm body, and heat exchanger heat dissipation openings are formed in the top of the heat exchanger fairing and located below the forward-rotating propeller and the reverse-rotating propeller. Driving motor modules of the forward-rotating propellers and the reverse-rotating propellers are located in the heat exchanger fairing, and heat exchanger heat dissipation channels are formed between the inner side wall of the heat exchanger fairing and the two sides of the top of the power arm body; the heat exchanger is arranged in the heat exchanger fairing, and cooling fins of the heat exchanger are arranged at heat dissipation openings of the heat exchanger. And a hot liquid inlet and a cold liquid outlet of the heat exchanger are respectively connected with a cooling liquid outlet pipe and a cooling liquid inlet pipe of the driving motor module. The problem that in the prior art, a heat dissipation structure is arranged outside a power arm, and flight resistance is caused to cruise flight of an aircraft can be solved.

The utility model discloses a high pressure jet formula impact head, including sinking pipe, impact head and support plate, the support plate is two, two the support plate radial setting at sinking pipe bottom end export place, be equipped with rotating shaft between the support plate, the rotating shaft is hinged with first closed door and second closed door, first closed door and second closed door are hinged respectively in rotating shaft both sides, the bottom port of sinking pipe is equipped with two with first closed door and second closed door cooperation's first bevel and second bevel that lean to upwards. The utility model has the beneficial effects that: guarantee the penetration ability to the stratum, have promoted the structural stability and durability of impact head, have improved construction efficiency.

This application belongs to the field of carbon fiber tube manufacturing technology, and discloses a carbon fiber tube centrifugal forming manufacturing system and process. The carbon fiber tube centrifugal forming manufacturing system includes a mold assembly and a centrifugal drive assembly. The mold assembly includes a module frame, individual frames, and mold components. The module frame is detachably connected to several individual frames, and the individual frames are detachably connected to several mold components. The mold components include a tubular mold with external hexagonal sleeves at both ends and detachably connected plugs at the ends. The centrifugal drive assembly includes a housing, a motor, and a platform. The housing and motor are mounted on the platform. A gear set inside the housing enables the motor to drive the external internal hexagonal sleeve to rotate. The internal hexagonal sleeve and the external hexagonal sleeve are inserted and engaged to drive the tubular mold to rotate and achieve centrifugal forming. This application solves the pain points of existing equipment and processes, such as poor versatility, cumbersome operation, low forming accuracy, and limited efficiency, through synergistic optimization of structure and process.

The application discloses a self-walking U-shaped hydraulic scissor lifting platform, which comprises a chassis, a walking assembly, a lifting assembly and a power assembly, the walking assembly is installed above the chassis through the lifting assembly, the power assembly is movably installed below the chassis, the chassis is in a U-shaped structure, the walking assembly comprises a left platform, a right platform and a middle platform, the left platform, the right platform and the middle platform form a U-shaped structure, and the opening direction of the U-shaped structure of the chassis is the same as the opening direction of the U-shaped structure of the walking assembly. The U-shaped chassis and the walking assembly are adopted, the AIS equipment to be overhauled can be surrounded from three sides, the height of the walking assembly is adjusted through the lifting assembly, and two people can work together, so that the number of personnel is reduced, and the work efficiency is improved.

The utility model discloses large -scale oil cylinder piston and piston rod's locking assembly fixture, including assembly drive arrangement, and assembly drive arrangement is provided with the central shaft, and the outside rotation cooperation of central shaft has the rotary element, and the cooperation end of rotary element is used for installing the piston, and the cooperation hole of central shaft can be inserted to the assembly of the assembly end of piston rod, and the cooperation hole is coaxial arrangement along the central axis of piston rod, when assembling, the vertical placement of piston rod makes its assembly end end face upward, and the upper coaxial sleeve of piston rod installs the piston, and the cooperation hole can form the circumferential limiting force and vertical support force of around its axis to the inserted part of central shaft, when the rotary element rotates relative to central shaft, can drive the rotation of piston relative to piston rod, and makes the assembly hole of piston can be screwed with the external thread of piston rod assembly end and is locked together, the utility model discloses can realize more accurate and smooth locking assembly with the aid of the dead weight of piston and piston rod, and then improves the assembly efficiency.

The utility model relates to the technical field of water faucet, concretely relates to a bathroom faucet convenient to assemble, technical solution main points include valve body, valve core subassembly, end cover and handle, the hot water flow channel, cold water flow channel, water outlet flow channel and installation groove are arranged in the valve body, the tank bottom of installation groove sets up hot water hole, cold water hole and water outlet hole, the isolation department is arranged in the valve body, the isolation department is symmetrically arranged two and separates hot water and cold water, two isolation departments form the hook groove area, the canyon area, hot water hole, cold water hole are in the hook groove area, and water outlet hole is in the canyon area, and at least two positioning grooves are arranged on the tank bottom, the positioning column of two with the positioning groove insertion is arranged on the valve core subassembly, makes the water pass hole of valve core subassembly and hot water hole, cold water hole and water outlet hole mutually coincide. The utility model realizes reliable convenient assembly through above -mentioned structure.

The utility model discloses a kind of clamp head structures for steering knuckle automatic feeding and discharging, including clamp top plate, the bottom surface of clamp top plate is fixedly connected with center pole, center pole is fixedly connected with several short arc rods by several connecting radial rods, several short arc rods are fixedly connected with short shaft, short shaft is rotatably connected with abutment rod;Top rod is slidably connected with the center pole, and the bottom end of top rod is fixedly connected with conical shell;Telescopic component is provided on clamp top plate, and telescopic component is connected with top rod to control the sliding of top rod on clamp top plate;Several abutment rods are located inside conical shell.The clamp head structure utilizes the bottom end of abutment rod to expand outward by conical shell up-down movement, to realize the abutting of the inner side wall of steering knuckle upper end seat or external connector, to make the feeding and discharging of steering knuckle more smooth, efficient, structure is simple, degree of automation is high, suitable for application under steering knuckle feeding and discharging working condition.

The application relates to the technical field of pipe replacement by the pipe cracking method, in particular to a self-rotating cutting type pipe replacement system for short pipe replacement. The pipe replacement system comprises a pipe cracking head, a driving mechanism, a pushing mechanism and a guiding mechanism. The head of the pipe cracking head is conical, and a spiral blade is arranged on the outer periphery of the head of the pipe cracking head. The driving mechanism is used for driving the pipe cracking head to rotate. One end of a pipe connector is rotationally connected with the tail of the pipe cracking head, and the other end of the pipe connector is used for connecting a new pipe. The pushing mechanism is connected with one end of the new pipe which is away from the pipe cracking head, and is used for pushing the new pipe to move forward along the original pipe. The guiding mechanism is installed between the driving mechanism and the pipe cracking head, is used for transmitting the torque of the motor to the pipe cracking head, and allows the pipe cracking head and the motor to axially move along the direction of the motor output shaft axis. The pipe replacement system can reduce or even avoid the pipe cracking head blockage caused by pipe sticking, insufficient forward movement of the new pipe and the like, and improves the pipe replacement efficiency.

The present application relates to the technical field of heavy load robot, in particular to a driving lifting device and a heavy load mobile robot with the same. The driving lifting device comprises a fixing member adapted to be fixedly installed on the heavy load mobile robot, a lifting assembly penetrating through the fixing member, a driving wheel assembly installed at one end of the lifting assembly, and an abutting lifting member installed at the other end of the lifting assembly away from the driving wheel assembly. A driving assembly is installed on the fixing member, and a driving lifting slope is arranged on the driving assembly. The abutting lifting member is arranged in abutment with the driving lifting slope, and the driving lifting slope is adapted to slide along the extension direction of the driving lifting slope. When the heavy load mobile robot needs to be repaired or maintained, the abutting lifting member is lifted by the driving assembly, so that the driving wheel assembly is separated from the ground. During the repair and maintenance of the heavy load mobile robot, external hoisting and carrying equipment is not required, and the repair and maintenance work of the heavy load mobile robot can be greatly simplified.