41 results about "Blade handle" patented technology

A rotatable tool which may include a blade, handle, a multi-positional radially rotating placement system, a spring bias lock mechanism, and a user activated unlock mechanism, and the like. Methods of use thereof by a user or other persons, possibly for instances such as self-defense, survival, cutting, perforating, slicing, sawing, chopping, tradecraft, or the like are also included.

The utility model provides an adjustable stator blade sealing device of an aero-engine, which is characterized in that an external shaft sleeve is arranged on a blade handle and rotates along with the blade handle; the internal shaft sleeve is mounted between the blade handle and the external shaft sleeve, the internal shaft sleeve is provided with a cavity, and a mounting shaft hole of the adjustable stator blade is matched with the cavity; a first sealing structure and a second sealing structure are arranged between the external shaft sleeve and the internal shaft sleeve, and the internal shaft sleeve and the external shaft sleeve are tightly sealed through cooperation of the first sealing structure and the second sealing structure. According to the utility model, a sealing mode of combining gas path sealing and labyrinth sealing is adopted, and the shaft sleeve at the blade handle and the bushing at the shaft hole of the casing are matched for sealing, so that the sealing performance of the gas compressor is improved, the water leakage problem at the VSV blade handle of the gas compressor is effectively reduced, the accuracy of T3 temperature change data is improved, and the reliability of a test result is enhanced.

The utility model provides an adjustable induced draft fan impeller blade handle shaft anti-falling bush, which relates to the technical field of bushings, and comprises a hub, blades and a flange, and the outer end part of the hub is provided with a blade handle hole. The wear-resistant composite flange bushing with the flange structure is arranged between the flange and the hub, and the flange is mounted on the inner side of the blade handle hole, so that when a centrifugal force is generated during operation of the fan rotor, the flange directly blocks the flange bushing from moving outwards, the effect of the centrifugal force on the flange bushing is counteracted, the flange bushing is effectively prevented from falling off from the blade handle hole, and the service life of the fan rotor is prolonged. The problems of rotation jamming of the blade handle shaft, failure of a blade adjusting function, drifting of movable blades, aggravation of equipment operation vibration and the like caused by falling of the flange lining are avoided, safe and stable operation of a unit is guaranteed, meanwhile, the flange lining is made of a composite material, the composite material has self-lubricating performance and abrasion resistance, the lubricating effect of the blade handle shaft when the blade handle shaft rotates in the blade handle shaft hole is guaranteed, and the service life of the blade handle shaft is prolonged. Friction loss is reduced, and the service life of parts is prolonged.

The application discloses a die for a coaxial cable spiral metal pipe conductor and a texturing method, and technical scheme points are as follows: a metal pipe body, a texturing assembly arranged outside the metal pipe body and used for improving texturing productivity of the coaxial cable spiral metal pipe conductor; the texturing assembly comprises a texturing cutter seat arranged outside the metal pipe body, a plurality of first fixing holes are formed in one end of the texturing cutter seat, a plurality of positioning columns are fixedly installed at the other end of the texturing cutter seat, and a head outer circle is arranged outside the texturing cutter seat; the super wear resistance of a tungsten steel blade edge is combined with a reversible design of a double-blade handle, so that the total effective processing mileage of a single set of tooling is improved by several times compared with a traditional die, which directly leads to a significant decrease in die amortization cost of a unit length product and a significant reduction in time loss and labor cost caused by stoppage and die replacement.

The application discloses a cutting scissors with a PVD coating and a cutting method, which comprises a finger blade, a thumb blade, a finger blade handle, a thumb blade handle, a hinging assembly, a lever assembly and a buffer assembly; the finger blade handle is fixedly installed at the end of the finger blade, the thumb blade handle is fixedly installed at the end of the thumb blade, and the finger blade and the thumb blade are hinged through the hinging assembly; the lever assembly is arranged between the finger blade and the thumb blade, the buffer assembly is arranged between the finger blade and the finger blade handle, and the metal surfaces of the finger blade and the thumb blade are provided with PVD coatings; the cutting method can realize the following effects: when the two blades are completely closed, the unique lever structure and the buffer structure are used to continuously exert a shearing force, so that the labor of the user is saved, and the exertion strength of the user is reduced; in combination with the PVD wear-resistant coating process, the surface of the product after coating is similar to the surface of a machined coating milling cutter, so that the wear-resistant service life and the sharpness durability of the scissors are greatly increased.

A cervical disc instrument that includes a handle that defines a cavity therein, a trial head, and a blade. The trial head is removably coupled to the handle and configured for insertion into a disc space. The blade is disposed in the cavity of the handle and configured to cut a surface that at least partially defines the disc space when the trial head is located in the disc space.

The clamp comprises a base, a clamping assembly and a cover plate, a plurality of fixing grooves are formed in the base at equal intervals, first connecting pieces are arranged in the fixing grooves, the first connecting pieces are configured to connect the base to a machine tool, the clamping assembly comprises a hydraulic piece and an extrusion piece, and the hydraulic piece and the extrusion piece are arranged on the base. The hydraulic part comprises a mounting part and a clamping part, the mounting part is fixedly mounted on the base through the cover plate, the clamping part is configured to clamp a blade handle part, a liquid storage channel is formed in the clamping part, an extrusion part is arranged at an opening of the liquid storage channel, and the extrusion part is configured to extrude liquid in the liquid storage channel so as to enable the inner wall of the clamping part to generate strain; and the blade handle part is extruded, so that the blade handle part is fixed. According to the clamp, the liquid in the liquid storage channel is extruded through the extrusion piece, so that the inner wall of the clamping part generates strain to fix the blade handle part, uniform and stable clamping force is provided for the blade handle part, and the machining precision of the coaxiality of the blade handle part of the gas turbine is improved.

The utility model discloses a dust collecting device for cleaning a blade handle shaft, relates to the technical field of dust collectors, and aims to solve the problems that dust is accumulated for a long time due to exposure of a feeding hole of the conventional dust collecting equipment, and gaps of elements are blocked when internal element equipment is started. The second overturning plate is installed on the front end face of the dust collecting device body, the upper end of the second overturning plate is rotationally connected with the dust collecting device body through a second electric control rotating shaft, a third overturning plate is arranged below the second overturning plate, and the lower end of the third overturning plate is rotationally connected with the dust collecting device body through a third electric control rotating shaft; two soft telescopic baffles are arranged on the two sides of the inner wall of the third overturning plate, and the two sides of the two soft telescopic baffles are in hot melting connection with the two sides of the inner wall of the third overturning plate and the inner walls of the two sides of the front end face of the dust collecting device body correspondingly.

A cutting tool system includes a cutting tool and optionally a longitudinally extending pole. The cutting tool includes a handle assembly and a blade. The handle assembly has a rearward proximal extension, a forward distal end longitudinally opposite the proximal extension, and a scabbard section extending from the proximal extension to the distal end. The scabbard section defines a longitudinally extending linear slot. The blade has a first end, a second end, and a cutting edge. The first end is pivotally mounted on the handle assembly such that the second end travels in an arc upon pivoting of the blade between a folded configuration, and an unfolded configuration of the cutting tool, in which the blade extends at least partially forward from the handle assembly with the cutting edge removed from the scabbard section and exposed for use.

This utility model discloses a reciprocating rotary cutting medical planer assembly and a medical planer, relating to the field of medical device technology. To address the problems in existing technologies where the planer and power handle are integrated, leading to difficulties in cleaning and clogging of the suction channel, leakage through the handle causing motor damage, and blockage of the inner blade tube during a single surgery, the following technical solution is proposed: It includes an outer blade handle, an outer blade sheath, a tower-shaped spring, a reciprocating lead screw, a drive gear, a transmission shaft, a driven gear, and inner and outer blade tubes. The outer blade handle and outer blade sheath are joined together, with a tower-shaped spring fitted on the outside of the outer blade sheath. The outer blade tube passes through both the outer blade handle and the outer blade sheath. The inner blade tube is located inside the outer blade tube, with a driven gear fixedly fitted at its tail, meshing with the drive gear. This utility model has a compact structure, enabling reciprocating rotary cutting action and improving the efficiency and precision of medical planing.

The application discloses a hub support positioning structure, which comprises a support steel pipe, an outer ring boss fixedly connected to the top of the support steel pipe, an outer ring fixedly connected to the outer side of the outer ring boss, a hub inner ring fixedly connected to the bottom of the support steel pipe, an inner hole arranged in the center of the outer ring boss, and a blade handle in contact with the end face of the inner hole after passing through the outer ring boss, the support steel pipe and the hub inner ring. The application can improve the defects of the prior art, accurately position and install the blade on the hub, and strengthen the hub inner ring and outer ring.

The invention relates to the technical field of fan blade adjustment, and discloses a counter-rotating type fan blade angle adjusting mechanism and method, the counter-rotating type fan blade angle adjusting mechanism comprises an annular adjusting plate, a movable adjusting part and a plurality of sets of swing parts, and the annular adjusting plate is coaxially arranged in a cavity formed in a fan hub; the movable adjusting part is arranged on the cavity and used for driving the annular adjusting plate to move in the axial direction of the fan hub, and the movable adjusting part comprises at least two sets of lead screw transmission assemblies and synchronous rotation driving pieces; the multiple sets of swing parts are connected between the blades and the annular adjusting plate in a one-to-one correspondence mode and used for converting linear movement of the annular adjusting plate into angle rotation adjustment of the blades, each swing part comprises a blade handle shaft, a swing arm and a sliding connecting piece, each blade handle shaft is rotationally connected with a fan hub, and the two ends of each blade handle shaft are fixed to the corresponding blade and the corresponding swing arm respectively; the angle adjusting mechanism is compact in overall structure, and synchronous adjustment of all the blades in the limited hub installation space of the counter-rotating fan can be achieved.

The utility model relates to a garden vegetation shaping device which comprises a trimmer body, the trimmer body comprises a handle, a machine box and a blade, the handle is installed on one side of the machine box, the blade is installed at the bottom of the machine box, an arc-shaped baffle is arranged on the side, close to the blade, of the machine box, a top plate is fixed to one side of the baffle, and the top plate is located above the blade. L-shaped protective plates are hinged to the two sides of the top plate respectively, the two protective plates can rotate synchronously, supporting plates are fixedly connected to the two protective plates respectively, connecting frames are hinged to the free ends of the supporting plates, a vertical rod is fixed to the top plate, and a sliding plate is slidably connected to the vertical rod. When the device is placed in a normal state, the top plate and the two L-shaped protection plates play a role in protecting the blade, the blade is prevented from being touched by mistake to hurt people, when the device is used, the two protection plates synchronously and relatively rotate, the two protection plates are opened, the bottoms of the opened protection plates are higher than the height position of the top of the blade, and then normal use of the blade is not hindered.

The equal-width cutting device comprises a fixing plate and a cutting plate, the cutting plate is fixedly installed on the fixing plate, the right side of the cutting plate is rotationally connected with a handle through a rotating shaft, torsional springs are arranged on the front side and the rear side of the rotating shaft respectively, and button arms of the torsional springs abut against the bottom of the right side of the handle and the top end face of the fixing plate respectively. The left side of the fixing plate is fixedly provided with a torsion spring, the right side of the handle is internally and fixedly provided with blades which are symmetrically arranged front and back, the center position of the front side of the handle is provided with a detachable blocking rod, and the top end of the left side of the cutting board is provided with a kidney-shaped hole used for avoiding the blocking rod. When the left side of the top of the handle is pressed, the handle does anticlockwise motion with the rotating shaft as the circle center, and equal-width cutting of a cutting material can be achieved through the blades symmetrically arranged in the right side of the handle front and back.

This utility model discloses a tissue slitting machine with quick-change blades, including a cutter, a frame, a blade mounting bracket, and a vertical motion drive mechanism. The blade mounting bracket includes a fixed plate, positioning components, a pressure plate, and connecting fasteners. The fixed plate is fixedly connected to the vertical motion drive mechanism. Multiple positioning components are spaced apart on the fixed plate along its lateral direction and protrude from the mounting surface. The cutter handle has multiple through holes extending along its thickness direction. The size of the positioning components matches the size of the through holes and can be inserted into the corresponding through holes. The pressure plate is arranged opposite to the fixed plate to press the blade handle firmly against the fixed plate. The pressure plate has clearance holes to avoid the positioning components. The connecting fasteners allow for detachable connection between the pressure plate and the fixed plate. This tissue slitting machine with quick-change blades enables quick, easy, and reliable installation and removal of the cutter, significantly improving the maintenance efficiency and overall operating efficiency of the tissue slitting machine.

This utility model discloses an overhead shears for pruning branches of *Vernicia fordii*, relating to the technical field of pruning tools. It includes a blade holder, which is Z-shaped overall. A horizontal groove is formed in the middle of the upper end, extending through the front end, and a vertical mounting groove is formed at the middle connection point. This utility model provides strong power for the scissor blades and the blade edge on one side of the blade holder to merge by installing a telescopic rod on the top surface of the lower end of the blade holder, enabling the cutting of thick branches. The funnel-shaped structure and nut at the lower end of the connecting tube facilitate the installation of the connecting rod, making it easier to control the position of the blade holder with both hands. The telescopic rod, slider, stop rod, spring, trapezoidal groove one, and trapezoidal groove two work together to control the up-and-down movement of the scissor blade handle, enabling the scissor blades to close and separate from the blade holder. The tension spring facilitates the quick reset of the scissor blades, ultimately solving the problem of insufficient shearing force in overhead pruning.

The utility model discloses a blade laser quenching processing device which comprises a six-axis robot and a processing machine tool main body, a clamping and rotating main machine head is installed on the processing machine tool main body, a blade handle of a blade to be processed is clamped on a three-jaw chuck of the rotating main machine head, and the six-axis robot is located behind the middle of the processing machine tool main body. A laser irradiation head is mounted at the end part of a mechanical arm of the six-axis robot and faces the surface of the part, needing to be quenched, of the blade; the outer wall surface of a to-be-quenched part at the left part of the blade is coated with an alloy powder layer; and laser of the laser irradiation head irradiates the alloy powder layer. A laser irradiation head is installed at the end of a mechanical arm of the six-axis robot, quenching is achieved by heating an alloy powder layer coated on a blade through laser, the hardness of the quenched position of the blade is further improved, and the six-axis robot can be automatically moved away when not in use, so that different use requirements of a machining machine tool body are met.

The utility model belongs to the technical field of knife handle detection, and particularly relates to an ultrasonic knife handle detection device. The ultrasonic knife handle detection device comprises a pedestal, a carrier plate, a laser displacement sensor and a wireless transmitting mechanism, the carrier plate is slidably arranged on the pedestal, and a connecting hole used for positioning an ultrasonic knife handle is formed in the carrier plate; the laser displacement sensor is arranged on the pedestal and can emit a laser beam to a detection point of the ultrasonic knife handle; the wireless transmitting mechanism comprises a wireless transmitting module and a support, the support is arranged on the carrying plate, the wireless transmitting module is connected to the support in a sliding mode, and the wireless transmitting module is in wireless communication with a wireless receiving module on the ultrasonic knife handle. According to the utility model, by moving the carrier plate and turning the ultrasonic knife handle in the connecting hole, the detection of a plurality of detection points can be realized, no additional detection equipment is needed, the process of repeated adjustment after the ultrasonic knife handle is turned over is avoided, and the detection efficiency of the amplitude can be greatly improved.

The utility model discloses a lock catch structure of chicken bone scissors, including lock wheel, the chicken bone scissors include two shearing units, and the shearing unit includes blade and handle, and the blade includes blade part and handle part, and the rear end of blade part is connected with the front end of handle part, and the hinging position of two shearing units includes scissors elastic opening mechanism, and the opposite position of two shearing unit blade blade parts each includes scissors blade, and the blade part of first shearing unit blade is below the blade part of second shearing unit blade, and the lock wheel includes gyro wheel and lock pin, the gyro wheel is arranged in the inside of the upper portion of first shearing unit blade handle part front section, and is hinged with the blade of first shearing unit, the lock pin is eccentric and is fixed on the gyro wheel, and the axis of lock pin is parallel with the axis of gyro wheel, and the upper portion of second shearing unit blade handle part front section includes the clamping slot of backward opening, and when two shearing units are folded and locked, the lock pin of lock wheel is clamped in the clamping slot, the utility model discloses one hand with the thumb can realize the locking or unlocking of chicken bone scissors, and the operation is convenient.

A system and method for curved squeegee apparatus that is usable in a variety of different configurations whereby the apparatus has a squeegee blade, a handle that acts as a cover to the squeegee blade and allows for the squeegee blade to reach extended locations in a parallel orientation with the handle and clean specific areas in a perpendicular position with respect to the handle, and a squeegee channel which has a curved shape causing the blade to have a convex or concave shape when inserted into the squeegee channel allowing the curved squeegee apparatus to accommodate for different surface areas.

The present application belongs to the field of quick replacement blade valve, discloses a kind of quick replacement blade valve and its replacement method.Quick replacement blade valve includes valve body, shaft sleeve, rotating mechanism, blade group mechanism. The blade group mechanism includes: blade, blade connecting shaft, blade handle, locking mechanism;The locking mechanism includes: locking shaft, rotating handle, butterfly bolt;The rotating mechanism includes: rocker arm, connecting rod, rotating shaft;Rocker arm is connected with rotating shaft, and rocker arm is connected with connecting rod and fixed. Replacement method is accurate, precise by being set between rotating mechanism and locking mechanism, and locking mechanism can quickly disassemble blade by adjusting angle, and also can quickly install blade;The service life of the quick replacement blade valve provided by the present application is long, the blade and valve shaft are not easy to deform, the actuator operates normally for a long time, and the blade can be quickly replaced. This blade is easy to disassemble, easy to clean and can be used continuously.

The utility model discloses a scissors folding and locking mechanism of chicken bone scissors, the chicken bone scissors comprise two shearing units, the upper part of the front section of the blade handle part of the second shearing unit comprises a clamping groove with a backward opening, and the front end of the plastic handle of the first shearing unit comprises a slot with a downward opening; when the two shearing units are folded, the upper part of the front section of the handle part of the blade of the second shearing unit enters the slot; the front part of a plastic handle of the first shearing unit comprises a transverse flat long hole, the flat long hole penetrates through the slot, and a lock pin of a scissor folding and locking mechanism penetrates through the flat long hole; when the two shearing units are folded, the lock pin moves forwards in the long axis direction of the flat long hole and is clamped in the clamping groove. When the two shearing units are opened, the lock pin moves backwards in the long axis direction of the flat long hole and is separated from the clamping groove. According to the scissor folding locking mechanism of the chicken bone scissors, locking and unlocking after scissor folding can be conveniently achieved through one-hand operation, operation is easy and convenient, and user experience is good.

The invention relates to a tool for cutting a metal plate. The tool comprises a rod body, a cutting blade, a tool apron and a handle. The tool apron is connected to the top end of the rod body and is configured to fix the cutting blade; the handle is connected to the bottom end of the rod body and arranged opposite to the tool apron. A sliding hammer is arranged between the handle and the tool apron, and the sliding hammer is provided with a through hole and is configured to be connected with the rod body in a matched mode. The tool can be used as an axe, and a user can wave the tool to enable the cutting blade to penetrate through a metal plate. The sliding hammer can be configured to manually slide up and down along the rod body, impact parts on the two sides of the tool and generate impact force, and therefore the cutting blade is assisted in cutting the metal plate. The tool can be used for opening up a vehicle rescue channel for first-aid personnel after a vehicle collision accident.

The application belongs to the technical field of agricultural machinery, and particularly relates to a high-strength wear-resistant rotary tillage blade and a production process thereof. The high-strength wear-resistant rotary tillage blade comprises a blade handle, the blade handle is connected with a blade body, the blade handle is provided with a mounting hole, one side of the blade body is provided with a curved blade edge part, the other side of the blade body is provided with a curved blade back part, the blade back part is thickened, wear-resistant alloy coating layers are arranged on both sides of the blade edge part, the material of the high-strength wear-resistant rotary tillage blade is high-carbon steel, the high-strength wear-resistant rotary tillage blade has the characteristics of high hardness, wear resistance, good toughness and high-strength operation, can be installed on agricultural equipment through the mounting hole, the thickened blade back part can increase the fracture resistance, the wear-resistant alloy coating layers arranged on both sides of the blade edge part can prolong the service life of the rotary tillage blade, improve the wear resistance of the blade edge part and increase the service life.

The utility model discloses a novel sharp head diving knife. The diving knife includes blade, handle, sheath, bandage, wherein the blade one side opens blade, the other side opens tooth, and the blade surface is designed with recess, is used for prying hard shellfish class organism, and the tooth surface is designed with back hook, is used for cutting fishnet fishline, and the handle includes hard glue cladding and soft glue cladding, and the hard glue cladding props the handle's grip shape, and injection molding is wrapped on the blade, and the sheath is used for accomodating the blade, prevents the blade from injuring the user in the diving operation process, and protects the blade edge from being damaged, and the sheath is provided with two elastic buckle points, is used for locking diving knife, and the bandage number is 2, and respectively passes from the front and rear clamping slot of sheath, and the bandage both ends are installed with plug buckle, and the bandage binds the sheath on the thigh, and is locked the bandage through the both ends of plug buckle, and fixes the bandage on the thigh. The utility model has the advantages of complete function, reliable quality, simple fixing mode and convenient use.

The utility model relates to the technical field of floor cutting, and discloses a cutting machine which is characterized in that second inserting holes transversely penetrate through the interiors of placing frames, an adjusting rod is rotationally connected between the two placing frames through a pin shaft, three third inserting holes are formed in the adjusting rod, a cutter handle is fixedly connected to the adjusting rod, a limiting groove is formed in the rear surface of the cutter handle, and the limiting groove is fixedly connected with the adjusting rod. A telescopic mechanism is installed on the knife handle and comprises a first fixing block, a second fixing block and a threaded rod, the first fixing block and the second fixing block are fixedly connected to the rear surface of the knife handle, the threaded rod penetrates through the interior of the first fixing block, a fastening base is arranged outside the threaded rod in a threaded and sleeving mode, and a limiting block is fixedly connected to the fastening base; a sliding block is fixedly connected to one end of the limiting block, and a pressing rod is fixedly connected to the sliding block. The sliding block can be driven to slide in the cutter handle by rotating the threaded rod forwards and backwards, so that the length of the pressing rod can be adjusted conveniently, more labor can be saved when a plate is cut by changing the length of the pressing rod, and the cutting strength is reduced.

This utility model discloses a stainless steel multi-functional scraper, including a blade and a handle made of stainless steel through one-piece forging. The lower end of the blade has a connecting handle, and the upper end of the handle is open with a slot corresponding to the connecting handle. The blade and handle are assembled by inserting the connecting handle into the slot. To increase the practicality and functionality of the blade, one side of the blade handle end has a concave semi-circular arc for scraping roller brushes, facilitating the cleaning of excess liquid decorative materials from the roller brush during operation, saving time and providing convenience. Furthermore, the other side of the blade handle end has a hook-shaped groove for opening paint can lids. This utility model relates to the field of hardware tools technology, specifically providing a stainless steel multi-functional scraper.

A cervical disc instrument that includes a handle that defines a cavity therein, a trial head, and a blade. The trial head is removably coupled to the handle and configured for insertion into a disc space. The blade is disposed in the cavity of the handle and configured to cut a surface that at least partially defines the disc space when the trial head is located in the disc space.

The utility model provides a blade assembly of a trough type ore washer. The blade assembly comprises a base, a blade handle and blades, the rear end of the blade handle is mounted on the base, and the base is used for being connected with a left large shaft or a right large shaft; the top surface and the bottom surface of each blade are respectively provided with a longitudinal raised cylinder and a transverse raised cylinder which are crossed with each other; the top surface and the bottom surface of the blade are inclined surfaces, the cross section of the blade is of a trapezoidal structure, the waists of the trapezoidal structure are positioned on the top surface and the bottom surface of the blade, the top surface and the bottom surface of the trapezoidal structure are respectively positioned on two transverse side surfaces of the blade, and the front end of the blade handle is connected with the longitudinal rear end of the blade. According to the blade assembly of the unique structure and the installation structure of the blade assembly, ore and mud pies between the upper blade face and the lower blade face can be sheared and extruded firstly and then sheared and stretched, the mud pies are scrubbed and smashed through strong acting force, and therefore the ore washing effect of the trough type ore washer is improved.

This utility model discloses a rotary planing medical shaving shaving assembly and a medical planer, relating to the field of medical device technology. To address the problems of difficulty in cleaning the suction channel, leakage damaging the motor, and blockage of the inner blade tube caused by the integrated design of the planer blade and power handle in existing technologies, the following technical solution is proposed: A rotary planing medical shaving shaving assembly includes an outer blade handle and an outer blade sheath spliced ​​together. A tower-shaped spring is fitted on the outside of the outer blade sheath. The outer blade tube passes through the outer blade handle and the outer blade sheath. An inner blade tube is provided inside the outer blade tube. A driven gear is fixedly fitted at the tail of the inner blade tube. The driven gear meshes with the driving gear and is jointly fixed by an internal gear bracket. This utility model allows the outer blade tube to be removed, and the inner blade tube can be cleared using a special tool, thus ensuring the smooth progress of surgery. Furthermore, the medical shaving assembly is completely isolated from the motor, preventing leakage and damage to the motor in the handle.