68results about How to "Easy to get rid of" patented technology

The invention provides a novel all-steel mud-field tire, and belongs to the field of tires. Through the adoption of the novel all-steel mud-field tire disclosed by the invention, improving tire strength is facilitated, impact resistance and durability of the tire are improved, and the service life of the tire is prolonged. A longitudinal section of the all-steel mud-field tire comprises a tire crown (1), a tire shoulder (2), a tire sidewall (3), a tire bead (6), and a tire body (4), wherein the tire crown (1) is located on the outer side of the upper part of the longitudinal section; the tire shoulder (2) is connected with the tire crown (1); the tire sidewall (3) is connected with the tire shoulder (2); the tire bead (6) connected with a wheel rim is arranged at the lower part of the tire sidewall (3); the tire body (4) is located on the inner side of the section of the tire; a tire shoulder pad (21) is arranged on the tire shoulder (2); a convex rib (31) is circumferentially and annularly arranged on the outer part of the tire sidewall (3); and the tire body (4) is a layer of all-steel tire body.

The invention discloses a method for the preparation of menthone. A palladium-ruthenium catalyst is used for heterogeneous catalysis under mild conditions, and isopulegol is used for the preparation of the menthone. The palladium-ruthenium catalyst can be used for efficiently catalyzing the isopulegol and making the isopulegol convert into menthone under the mild conditions.

The invention relates to an installing and welding tool for a cab, which comprises a baseplate, a three-direction pressing and positioning device arranged on the baseplate, a large-floor middle pressing device, a crash barrier positioning and pressing device, a left pressing device, a right pressing device, a camber beam positioning and pressing device, a doorframe pressing device, a cross beam positioning and pressing device and an end chuck positioning block, wherein the large-floor middle pressing device, the crash barrier positioning and pressing device, the left pressing device and the right pressing device are arranged on one side of the three-direction pressing and positioning device, the camber beam positioning and pressing device, the doorframe pressing device, the cross beam positioning and pressing device and the end chuck positioning block are arranged on the other side of the three-direction pressing and positioning device, the left pressing device and the right pressing device are respectively arranged on two ends of the three-direction pressing and positioning device, the large-floor middle pressing device is arranged between the left pressing device and the right pressing device, one end of the large-floor middle pressing device is further provided with a large-floor rear positioning device, and the two ends of the three-direction pressing and positioning device are provided with pressing and positioning mechanisms. By means of the invention, the vertical dimensions of end parts of a cross beam and a camber beam are ensured, the cross beam is prevented fromlateral bending, and the installing and welding tool has the advantages of convenience for operation and bodilessness, good generality and capability of clamping manually and is convenient, flexible and reliable to mount and dismount.

The invention discloses an air-free tire and an automobile. The air-free tire comprises a rubber tread and a wheel arm. The wheel arm is sleeved with the rubber tread and comprises an outer wheel arm ring, a middle wheel arm ring and an inner wheel arm ring. The outer wheel arm ring is fixedly connected with the middle wheel arm ring through outer spokes. The middle wheel arm ring is fixedly connected with the inner wheel arm ring through inner spokes. Recessed portions are formed in the two sides of the wheel arm and formed in the outer spokes, the middle wheel arm ring and the inner spokes. The automobile comprises the above air-free tire. The tire can be prevented from bursting in the high-speed traveling process of the automobile, and the automobile traveling safety and reliability are improved; the radial elastic performance and buffering capacity of the air-free tire are improved, and the steadiness of the automobile in the traveling process is improved; and the hardness of a tire shoulder can be effectively reduced, and the problem of abnormal wear is solved.

The invention relates to a high-altitude safety belt with a winding function. The high-altitude safety belt comprises a shoulder belt, a back belt, a front chest belt, a waist belt, leg belts, a waistring, a back hanging ring, a lock buckle, connection belts and a winding device, wherein the back belt is in a reversed V shape, the back hanging ring is fixedly connected to the corner point position of the back belt, two branches of the back belt stretch out downwards correspondingly and are connected with the waist belt and the leg belts in a sewn manner in sequence, the shoulder belt is a closed ring, the two ends of the shoulder belt are connected with the back hanging ring and the front chest belt correspondingly to form a double-shoulder belt, the waist ring is fixedly connected to thewaist belt and located at the position right below the front chest belt, the lock buckle is connected between the front chest belt and the waist ring, the connection belts are fixedly connected between the leg belts and the waist belt, the winding device is hooked and hung to the waist belt and comprises a shell body, a rope winding disc rotatably connected inside the shell body, a hand wheel arranged on one side of the shell body and a rope which is winded on the rope winding disc and stretches out of the shell body, and the free end of the rope is provided with a climbing buckle in an attached manner. The high-altitude safety belt with the winding function has the advantages that operators retract the climbing buckle which is released from hands conveniently, safety hidden dangers are reduced, and the work efficiency is improved.

The invention discloses a ship lap joint type groove type construction method. A cabin wall is a U-shaped groove, the method comprises the steps that (1), a special jig tool for welding of an U-shapedgroove is prepared, and a center line and a horizontal line are assumed by the surveying and drawing of the jig tool; (2) bottom plates of the U-shaped groove are positioned according to the center line and the horizontal line, the width data of the bottom plates is measured to determine the connecting position point of side plates, and angles of the side plates and the bottom plates are determined by using a first angle control tool; (3) welding of the bottom plates and the inner surfaces of the side plate is performed through flat welding, and the interior of a groove opening is fully welded; (4) a second angle control tool is installed, and the U-shaped groove is placed on the special jig tool to carry out submerged arc welding on the outer surfaces of the side plates and the bottom plates; and (5) the lap joint type groove type cabin wall is built in a segmented mode, the groove type jig is manufactured, a ground sample line and the horizontal line are surveyed and drawn, the welded U-shaped groove is hoisted to the groove type jig, the welding shrinkage amount is added, welding between the U-shaped groove assemblies is completed, and I-shaped reinforcing ribs are arranged onthe upper surface and the lower surface of the U-shaped groove segmented cabin wall in the direction perpendicular to the extending direction of the U-shaped groove.

The invention provides a control method and control apparatus of a virtual incoming call, and a mobile terminal. The control method comprises: whether current biological characteristic information of a user is obtained is detected; if so, target incoming call prompting information corresponding to the current biological characteristic information of the user is determined; and a virtual incoming call function is started according to the target incoming call prompting information. According to the technical scheme, the virtual incoming call function can be started anytime and anywhere according to user demands and thus others may think that the user has something urgent to deal with, so that the user can get himself / herself out of the situation that he / she is reluctant to deal with by the virtual incoming call and thus the usage experience of the user is improved.

The invention relates to an unattended offshore nuclear power platform, comprising a barrel-shaped ship body, a connecting device, a pre-installed parking system, a port, an emergent water inlet system, and a central control system. The barrel-shaped ship body is composed of a bottom circular platform and a barrel body disposed on the circular platform. The edge of the circular platform extends tothe outer side of the barrel body, forming an extending part, and the connecting device is disposed on the extending part. The bottom of the barrel-shaped ship body is connected to the parking systemthrough the connecting device, and is positioned through the parking system. The bottom part of the barrel-shaped ship body is provided with a port connected to a production platform, and the emergent water inlet system connected to sea water. The port is connected to the central control system disposed on the production platform through cable. The central control system conducts remote control on the platform. The invention is advantageous in that unattended offshore nuclear power platform can be realized, and investment and operation expense on the offshore nuclear power platform can be reduced.

The invention particularly discloses a skewed slot stator iron core non-pull overlying device. The skewed slot stator iron core non-pull overlying device resolves the problem that an existing stator iron core overlying device damages an iron core easily in a pulling mode during the process of making bodiless lacquerware, and quality is not easy to control. The skewed slot stator iron core non-pull overlying device comprises an overlying base, wherein a column-shaped core cylinder is arranged on the overlying base, a plurality of taper slots which are vertically arranged are radially formed in the outer circumferential face of the core cylinder in an evenly-distributing mode, skewed wedges and locating taper keys are arranged inside the taper slot at intervals, the skewed wedges and the locating taper keys are in clearance fit with the skewed wedges and the locating taper keys, the upper end faces of the skewed wedges are provided with jackscrews with the lower ends contacted with the upper end of the core cylinder in a screwing mode, the inner wall of the core cylinder is provided with a fastening bolt which is fixed with the skewed wedges in a screwing mode, and the outer sides of the locating screwed keys are of a spiral structure which is matched with a stator core skewed slot. By the combination of advantages of the stator iron core of a skewed slot structure, and through a novel structure, overlying of stator iron core of the skewed slot structure is achieved, the angle of an skewed slot can be effectively guaranteed, the quality is easy to control, the process of making bodiless lacquerware is easy to achieve, and the iron core is not pulled easily, and besides, the skewed slot stator iron core non-pull overlying device has the advantages of being simple in structure, convenient to operate, and low in cost.

The invention discloses a cleaning device for a blackboard eraser. By arranging the cleaning device and arranging a plastic brush on the outer side of the cleaning device, when a motor drives the cleaning device to rotate, the plastic brush on the outer side can sweep down chalk dust on a brush of the blackboard eraser, and a cleaning chamber is in the closed state, so that the situation that dust is diffused and consequentially people inhale a large quantity of the chalk dust is avoided, and the health of people is facilitated. By arranging the blackboard eraser in an arc shape and arranging a connection rod on the back face of a shell of the blackboard eraser, the connection rod can be fixed into a threaded hole in the cleaning device, and thus the situation the blackboard eraser is prone to being thrown away due to infirm fastening when the blackboard eraser rotates at a high speed is avoided. By additionally arranging a water tank above the cleaning chamber and using a nozzle for spraying water onto the blackboard eraser, the cleanliness of the blackboard eraser is convenient to improve. By arranging a drying chamber, when the blackboard eraser is sprayed and washed with water, the blackboard eraser can be placed into the drying chamber and rapidly dried by starting an electric heating plate and a fan, and teachers use the blackboard eraser without being affected.

The invention relates to a method and a device for installing a typical underwater manifold in a swing mode. The device is characterized by comprising a No.1 installation ship and a No.2 installation ship, wherein the manifold is arranged on a deck of the No.1 installation ship; the top of the manifold is provided with four hydraulic release clamping rings; each hydraulic release clamping ring isconnected with a steel wire rope; the other ends of the four steel wire ropes are connected to the bottom of a triangular plate body with an isosceles triangular vertical section through the hydraulic release clamping rings; the top of the triangular plate body is connected with one corner of a quadrangular plate body with a quadrangular vertical section through the hydraulic release clamping rings; the other corner opposite to the corner is connected with an A-shaped crane on the No.1 installation ship through the hydraulic release clamping rings and cables; the other two corners of the quadrangular plate body are correspondingly with a hydraulic winch on the No.1 installation ship and an A-shaped crane on the No.2 installation ship through the hydraulic release clamping rings and the cables respectively; the No.1 installation ship and the No.2 installation ship are provided with an underwater robot respectively; and the underwater robots are arranged in an umbilical cable managementsystem.

The invention relates to a disk braking system for an electric automobile axle assembly. The disk braking system for the electric automobile axle assembly comprises a half shaft (1), wherein a hub (8) is fixedly connected to the outer side of the half shaft. The disk braking system for the electric automobile axle assembly is characterized in that a brake disc (7) also sleeves the half shaft and is fixedly connected onto the hub; a brake caliper (2) in brake fit with the brake disc is connected onto the brake disc (7), and comprises a caliper body (3); brake plates (5) are respectively connected to two sides of the caliper body (3) in a sliding fit way, and are correspondingly arranged on two sides of the brake disc (7); a friction plate (6) in brake fit with the brake disc (7) is connected to the inner side face of each brake plate (5) in a fit way; a pressure wall (4) in pressure fit with one brake plate (5) is also connected to the outer side of the brake plate (5). The invention has the advantages that the device is simpler in structure, easy to maintain and convenient for replacing the friction plate, and has better heat stability, water stability and brake stability.

The invention provides a processing method of green bud tea. The processing method comprises the steps of fresh bud picking, withering, steam deactivation, fine hair removing, shaping, final roasting and fragrance extracting with big fire, and then a green bud tea finished product is obtained. According to the processing method, the green bud tea processing steps are all optimized, the green bud tea deactivation method is especially renovated, mechanical degree is high, and tea leaf automatic production is facilitated. According to the green bud tea prepared by the method, buds are complete, leaf bottoms are emerald-green, tea color is light-green and bright, the specific fragrance and flavor of the steam-deactivation greed bud tea are achieved, and color, aroma and taste of the green bud tea are all great.

The invention provides a detachable spring coil which includes a guide-in sheath, a pushing system and a spring coil assembly. The pushing system is located in the guide-in sheath and includes clamps.By optimizing the shape and number of the clamps and arranging a protrusion part at the proximal end of a spring coil body, the spring coil body is more tightly and firmly through the clamp fixing cooperation in normal times, so that the detachable spring coil can stably deliver the spring coil body to the position, needing thrombus occlusion, in a human body, then the spring coil body can be easily detached, instant detaching can be achieved during detaching, the operating method is simple and convenient, and damage to blood vessels is avoided; a mechanical detaching system is high in controllability and good in development on an embolization spring coil before detaching, and instant detaching can be achieved; and compared with a lock-catch-type detaching method, the detachable spring coil can enable the spring coil body to be easier to be pushed, damage to the spring coil body is avoided, and when the spring coil body is pushed out of a catheter, the catheter is not damaged when a push rod is retracted.

The invention relates to an anti-jarring reversing fishing spear. The anti-jarring reversing fishing spear comprises a top connector, a spear rod threadedly connected with the top connector, and a spear tile arranged on the spear rod in a sleeve mode. The anti-jarring reversing fishing spear is characterized in that the spear rod and the top connector are fastened through an anti-twist pin, an auxiliary spring which is arranged on the spear rod in a sleeve mode is arranged between one end of the top connector and the spear tile, and a fishing spear base and a guide cone are arranged on the spear rod in a sleeve mode through threads. The anti-jarring reversing fishing spear has the advantages that the release mode between the fishing spear and the a falling drill string is changed to increase the operation functions of the fishing spear and to achieve the effect of long-time jarring and convenient reversing and releasing, so that resources are saved and the success rate of operation is improved. The anti-jarring reversing fishing spear can be widely applied to operation of drilling, well completion and well maintenance, solves the problems of resource backlogging due to fishing spears of different functional types, difficulties of tool selection of complex situations and large influences of subjective factors in an operation process, and can be preferably used for solving problems particularly in situation that the sticking reasons and sticking points of the underground falling drill string are not clear.

The invention provides a self-cleaning and automatic water changing pet water dispenser. The self-cleaning and automatic water changing pet water dispenser comprises a machine body, a self-cleaning structure and an automatic water changing structure. The self-cleaning and automatic water changing pet water dispenser is simple in structure and easy and convenient to install. A water drinking bowl can be automatically cleaned, sewage containing dust, pet hair and food residues can be discharged, and new purified water can be injected into the water drinking bowl.

The invention relates to the technical field of optical fiber communication, in particular to an integrated ceramic ferrule and an optical fiber socket. The integrated ceramic ferrule comprises an inner hole, the front section of the inner hole is an optical fiber channel for fixing an optical fiber, and the tail end of the optical fiber channel is provided with an optical fiber penetration guidesection. The rear section of the inner hole is a buffer layer protection channel used for fixing an optical fiber buffer protection layer, an anti-rotation structure is arranged on the outer edge structure of the rear section of the ceramic ferrule, and a spring supporting section is arranged on the rear portion of the anti-rotation structure. According to the integrated ceramic ferrule and the optical fiber socket provided by the invention, through combination of a ceramic ferrule part and a metal tail handle part and because of reasonable structural design of an optical fiber connector, theoptical fiber connector is more compact in structure, therefore, the density of the current optical fiber connector is doubled, and preparation is made for an optical module to achieve a specificationof 800G and above in the next step.

The invention discloses an electric cabinet locking device and aims to solve the technical problem that the existing electric cabinet locking device is inconvenient to operate. According to the technical scheme, the electric cabinet locking device is composed of a lock base and a retainer lock. The lock base is provided with two prongs and a transverse locking hole behind the prongs. A lock body of the retainer lock is provided with a first mounting hole. A spring is mounted in the center of the first mounting hole. Clamp pins capable of sliding in the mounting hole are fitted to two ends of the first mounting hole respectively. After a pin fixed on the lock body penetrates an elongated hole of the clamp pin, the clamp pin is allowed to only slide left and right in the lock body without slipping off. Two ends of the lock body are provided with two locking grooves used for accommodating the two prongs. The lock base is fixed on a frame. A clamp lock part is fixed on the lower portion of a case. The center of the lock base is horizontally level with the center of the retainer lock, and the lock base and the retainer lock are in bilateral alignment symmetry. To lock the case to the frame, the retainer lock is pushed into the lock base and locked to the lock base through the spring and the clamp pin. To pull out and unlock the case, the clamp is bidirectionally compressed. With the electric cabinet locking device, an electric cabinet can be reliably locked and conveniently unlocked.

The invention discloses a thermal-type based oily sewage pipeline cleaning device and belongs to the technical field of sewage treatment. According to the thermal-type based oily sewage pipeline cleaning device, when oily sewage is discharged through a drainage pipeline, a water swelling water stop ring rapidly swells in water, and part of the oily sewage reacts with calcium oxide powder to generate calcium hydroxide, so that the dissolution of oil stains can be accelerated through alkaline calcium hydroxide, and a large amount of heat is generated; gas in a storage cavity swells and pushes open a rubber sealing sheet and then is blown out along with the rise of the temperature in the storage cavity; and by means of the reactive force during the gas discharge, the whole of a thermal-type cleaning ring can move upwards along the drainage pipeline, so that the oil stains generated on the inner wall of the drainage pipeline are cleaned; the oil stains enter an annular connecting frame andare mixed with foaming powder, and a large amount of foam can be generated, so that the foam is blown to the inner wall of the drainage pipeline, and the inner wall of the drainage pipeline can be further cleaned.

The invention relates to a preparation method of embedded double-layer bletilla striata dressing, and belongs to the technical field of biological medicines. The preparation method comprises the following steps: dissolving bletilla striata polysaccharide extracted from bletilla striata tuber in water, thus preparing a casting solution, taking part of the bletilla striata polysaccharide casting solution, carrying out treatment by adopting sodium hydroxide, thus obtaining an embedded-layer casting solution, carrying out directional freezing on the bletilla striata polysaccharide casting solutionfor film forming, carrying out groove carving on the surface of the formed film, pouring the embedded-layer casting solution on the formed film with groove carving under liquid nitrogen refrigeration, thus a double-layer formed film is obtained through refrigeration, and carrying out freeze drying on the double-layer formed film, thus obtaining the embedded double-layer bletilla striata dressing.According to the preparation method provided by the invention, the double-layer bletilla striata dressing is prepared by adopting groove carving and freezing, the combination is reliable, the processis simple, and the problems that during taking for use, the bletilla striata dressing is easily soluble, can adhere to gloves, and has difficulty in separating from the applied wound are solved. Theobtained bletilla striata dressing can be degraded and absorbed in the body, has good compatibility with the living body, and has no side effects to the wound, the directional pore structure guarantees the efficient absorption of the dressing for the penetrating fluid, and meanwhile, the dressing is soft and can not cause injuries to the wound.

The invention discloses a deep water surface casing running tool relief simulating experimental device and method. The deep water surface casing running tool relief simulating experimental device comprises an experimental frame, a low-pressure well head, a deep water surface casing running tool, a rotating motor, a lifting motor device, a coupler, a data collector and a computer. An output shaft of the rotating motor and an output shaft of the lifting motor device are provided with a torque sensor and a tension sensor correspondingly. Multiple anti-rotation pin sensing sheets are arranged in the deep water surface casing running tool. The torque sensor, the tension sensor and the multiple anti-rotation pin sensing sheets are connected with the computer through multiple data lines. By the adoption of the deep water surface casing running tool relief simulating experimental device and method, by means of experiment stress analysis of operations, such as locking, relief and recycling, conducted on the deep water surface casing running tool, basis is provided for making a plan to optimize pin arrangement, and then the safety, efficiency and accuracy of the deep water jet operation of the deep water surface casing running tool are improved.

The invention discloses an iron shovel. The iron shovel comprises a shovel handle, a shovel head and a shovel blade, wherein the shovel handle, the shovel head and the shovel blade are movably connected, the shovel head and the shovel blade are fixedly connected, the shovel blade is arranged at the front end of the shovel head, more than one anti-slip sweat-absorbing layer is arranged on the shovel handle, an iron cover is arranged at the top end of the shovel handle, a cavity is formed in the top of the shovel handle, the iron cover is arranged above the cavity, the iron cover is in buckle connection with the cavity, more than one hinge device is arranged in the middle of the shovel handle, more than one triangular through hole is formed in the shovel head, sawteeth are arranged on the side face of the shovel head, and a concave pedal is arranged at the top end of the shovel head. The iron shovel is reasonable in structure, and capable of storing articles, being carried conveniently, saving labor, preventing slip and absorbing sweat.

The invention relates to a locking and releasing device for a large connecting piece and belongs to the technical field of mechanical engineering. The locking and releasing device comprises a gear nut, a constant power mechanism, an automatic centering mechanism, a lifting mechanism and a free following mechanism, wherein the constant power mechanism is used for supplying constant power to the gear nut, and the gear nut is enabled to keep consistent torque in both locking and releasing processes; the automatic centering mechanism is used for automatically adjusting the centering amount in a rotating process, the centering position is guaranteed, and a part is prevented from grinding and damage; the free following mechanism is used for guiding and supporting the part in the locking and releasing processes; the lifting mechanism is used for adjusting the high-low positions; the constant power mechanism is mounted on the automatic centering mechanism which is mounted on the free following mechanism, and the free following mechanism is mounted on the lifting mechanism. According to device, locking and releasing of the large connecting piece are simple, rapid, stable and accurate, and the problems of low assembly efficiency, inconsistent tightening torque and thread damage caused by centering and superpositioning of assembly are solved.

The invention provides a resin removing device and a removing method thereof, and relates to the technical field of resin. The resin cleaning device comprises a control system, a treatment assembly and a feedback component, wherein the treatment assembly comprises a treatment device and a driving device, the treatment device is provided with a containing cavity for containing a to-be-cleaned piece, the to-be-cleaned piece is connected with the driving device, and / or the treatment device is connected with the driving device, the driving device is in communication connection with the control system, the treatment device is used for reducing the viscosity of resin on the to-be-cleaned piece, and the feedback component is used for acquiring the position information of the to-be-cleared part and feeding back the position information to the control system. According to the resin cleaning device, the control system can control the driving device to drive the to-be-cleaned piece to rotate in the circumferential direction, so that most of redundant resin on the to-be-cleaned piece is thrown away, then under the action of the feedback assembly, the control system intelligently adjusts the position of the to-be-cleaned piece, and after viscosity reduction treatment of the treatment device, the resin of the to-be-cleaned part can be thrown away more easily, and a more intelligent cleaning technological process is achieved.

The invention discloses a rotary cone high-performance smashing and grinding machine. The rotary cone high-performance smashing and grinding machine comprises a shell and a rotary grinding core, wherein the shell comprises a constant-diameter section and a reducing section; the large-diameter end of the reducing section is connected with one end of the constant-diameter section; a feeding port is formed in the top or the side face of the constant-diameter section, and the small-diameter end of the reducing section is arranged in an open mode to form a discharging port; the rotary grinding core comprises a rotating shaft and a plurality of moving cutters; the two ends of the rotating shaft are mounted at the top and the bottom of the shell correspondingly, and the plurality of moving cutters are spirally distributed on the rotating shaft; each moving cutter comprises at least two blades; the cutting edge of each blade is consistent with the rotating direction of the rotating shaft, and each blade is movably mounted and can reversely rotate relative to the rotating direction of the rotating shaft.

The invention discloses a quick release type semi-submersible production platform fair lead towing fixing device which comprises a fixing support and a release assembly, one end of the fixing support is arranged on a semi-submersible production platform, and the release assembly comprises a releasing part and a connecting part. One end of the releasing part is inserted into the other end of the fixing support in the direction perpendicular to the length extension direction of the fixing support so that a fair lead can be fixed to the fixing support, one end of the connecting part is connected with the other end of the releasing part, and the other end of the connecting part is driven through external force so that the releasing part can be separated from the fixing support. The fixing device is simple and rapid in disassembly and assembly process, simple in form and capable of effectively resisting large environmental loads in long-distance towing of the semi-submersible production platform, the fair lead can be rapidly released conveniently when the semi-submersible production platform is installed on the sea, and offshore installation operation and installation time are saved.

The invention relates to the technical field of aluminum alloy processing, and discloses an aluminum alloy razor head grinding device, which includes a working disk, the top of the working disk is fixedly connected with an anti-splash ring, and a fixed seat is arranged inside the anti-splash ring. The fixed seat is movably connected with the working disc, the top of the fixed seat is rotatably connected with a grinding wheel disc 1, the razor head is rotatably connected with the grinding wheel disc 1, and the grinding wheel disc 2 is fixedly connected with the top of the grinding wheel disc 1. A fixed frame is fixedly connected to the top of the fixed seat, and a rotating device is arranged on the fixed frame. When the teeth mesh with the gear, the turntable 2 drives the teeth to rotate, and the teeth drive the connecting rod to rotate through the gear, and the connecting rod rotates to drive the razor head to turn over, so that the razor head does not need to be turned back and forth when polishing the razor head, and it is necessary to keep Turning the handle can complete the grinding of both the front and back of the razor head, which greatly improves the grinding time.

The invention relates to an anti-sticking borehole detector and solves a technical problem that the structure of a borehole detector in the prior art does not contribute to rapid borehole tripping. The detector comprises a detector fixing unit and a multi-core cable, wherein a detector core is arranged in the detector fixing unit, the multi-core cable is connected with the detector core, the detector fixing unit is connected with an electric control vibration rod through a connecting body unit, and a core of the multi-core cable is connected with a motor lead in the electric control vibrationrod through a connecting cable. The invention can be applied to the technical field of a detector.

The present invention relates to an arc welding power supply for welding pipeline. It mainly includes output transformer whose secondary has two main windings and two auxiliary windings, rectifier with radiator and four rectifying tubes which are contained in the rectifier and correspondent to the above-mentioned four windings of output transformer, and between the radiator of rectifier and cooling device formed from weatherproof ventilating shutter an air-tight device is set. Said invention can attain the goal of highly outputting voltage in the main cellulose electrode electric arc working zone and attain maximum volt-ampere characteristic oblique deascension envelope.