34results about How to "Affect the transmission effect" patented technology

The invention provides an adjustable depth sampling frame structure for environmental engineering water quality monitoring, which comprises a base bracket, a gearbox and sampling pipe heads. The top of the base bracket is fixedly connected with one set of gearbox; a rotating shaft of the gearbox is coaxially and fixedly connected with one set of gear; the lower parts of telescopic rods are tightlyconnected with a set of sampling pipe heads by pipe brackets; and the sampling pipe heads are connected with sampling pumps. By arranging a gear and rack drive mechanism and a driving belt drive mechanism and arranging sliding connection plates and fixed connection plates, when four sets of sampling pipe heads regulate a depth, distances among the sampling pipe heads can be guaranteed to be equal, so that a water body can be uniformly sampled, thereby improving sampling accuracy, reducing an error and facilitating accurate detection management on water quality; and the adjustable depth sampling frame structure can be driven by the gearbox, so that automatic regulation of the sampling depth is implemented and manual labor is reduced.

The invention provides a diesel and kerosene resistant high-shrinkage heat-shrinkable tube for optical fiber splicing and sealing and a preparation method thereof. Firstly a formula of a radiation crosslinking polyolefin base material is broken through, high density polyethylene with high mechanical strength and high crystallization property is selected as a main ingredient, a small amount of flexible medium density polyethylene with excellent low temperature performance and linear low density polyethylene with good processability are taken as auxiliary materials, and working procedures such as preparing, mixing, pelletizing by extrusion, sheet extruding and irradiating are carried out, so that the heat-shrinkable tube is obtained. The heat-shrinkable tube can realize the shrinkage requirement reaching 6 times according to deviation between an optical fiber splice closure and the diameter of an optical fiber and can be used normally after being soaked by diesel and kerosene for a long time.

The invention discloses a file transmission method, which comprises the following steps of: reading a target file to be transmitted from a memory of a client in a zero copy mode, and monitoring the network condition of a transmission network of the target file; determining a segmentation mode of the target file according to the monitored network condition and the file size of the target file, andsegmenting the target file into a plurality of segmented data blocks according to the determined segmentation mode; and transmitting the plurality of segmented segmented data blocks from the client toa plurality of servers in parallel by adopting multiple threads, and asynchronously uploading the segmented data blocks received by the servers to a target terminal for combination, so that the target terminal obtains the complete target file. The invention further discloses a file transmission system and a computer readable storage medium. The target file is divided into a plurality of segmenteddata blocks, the segmented data blocks are transmitted to the server in parallel through multiple threads, the segmented data blocks are asynchronously uploaded to the target terminal from the server, and the file transmission effect is improved.

The invention discloses a circulation system with two tracks of an internal track and an external track. The circulation system comprises a film inlet track, a film collecting track, a drying room inner track and a drying room outer track; an inner side chain guide groove is formed in the inner side of a film inlet guide plate, and an outer side chain guide groove is formed in the outer side of the film inlet guide plate; the drying room inner track is arranged inside a drying room, the drying room inner track comprises two symmetrically-arranged inner track guide plates, and the two inner track guide plates are separated from each other gradually from the parallel arrangement to the two sides, the distance is gradually increased and then parallel arrangement is achieved, and inner chain guide grooves are formed in the inner track guide plates; a film collecting chain guide groove is formed in the film collecting guide plate, and a driving chain wheel is arranged at the rightmost end of the film collecting guide plate; and the drying room outer track comprises two outer track guide plates which are symmetrically arranged outside the drying room, and outer chain guide grooves are formed in the outer track guide plates. According to the circulation system, the internal track and the external track are arranged inside and outside the drying room respectively so that the temperature of the chain on the outer track and the temperature of a film clamp arranged on the chain can be reduced, so that the problem that a film at a film inlet is burned and damaged because the temperature of the film clamp is too high is solved.

The invention discloses a material passing, clamping and conveying device for processing cable materials and belongs to the technical field of cable conveying. The material passing, clamping and conveying device for processing the cable materials comprises a moving component, adjusting components, conveying components, cutting components and stabilizing components; the moving component is fixedly arranged on the ground; two groups of adjusting components are arranged; the two groups of adjusting components are symmetrically arranged on the moving component; two groups of conveying components are arranged; the two groups of conveying components are symmetrically arranged at the working ends of the two groups of adjusting components;the cutting component is fixedly arranged on one side of the moving component; the stabilizing component is fixedly arranged below the moving component; the working end of the stabilizing component penetrates through the moving component;and the stabilizing component is used for stabilizing the device after the device is moved to the working position, so that the device is prevented from shaking during working to affect the cable transmission effect; through cooperation of the components, the cable can be effectively transmitted instead of manpower, the so that transmission effect is quicker; and free movement and cable cutting can also be carried out.

The invention relates to the technical field of planet gear machining, in particular to a planet gear machining system and a machining process. The planet gear machining system comprises a bottom rack, supporting columns, a supporting plate, a limiting clamping mechanism and a grinding mechanism. According to the planet gear machining system and the machining process, in a designed grinding belt, an air bag can drive grinding abrasive paper to be tightly attached to planet gear teeth through the good deformation capacity of an air bag in the expansion process, so that the grinding abrasive paper grinds the planet gear teeth more thoroughly, and the situation that burrs left on the planet gear teeth affect the transmission effect of a planet gear in the follow-up using process is avoided. According to the planet gear machining system and the machining process, arc-shaped plates are formed by hinging a plurality of sets of arc-shaped strips through hinges, so that the contact area between inner supporting frames and the planet gear is increased when the planet gear is internally supported by the inner supporting frame, the planet gear is prevented from relatively rotating in the rotating process, and it is ensured that the planet gear more stably clamped by the supporting plate.

The invention relates to a polishing wheel expansion assembly for a lathe. The polishing wheel expansion assembly comprises a clamping block, a connecting support, a polishing wheel and a driving mechanism. The clamping block is installed on a tool rest of the lathe. The connecting support comprises a rotating support and a pressing support, a rotating rod is arranged on one side of the rotating support, the rotating support is connected with the clamping block in a rotating mode through the rotating rod, the pressing support is fixed to the rotating support and comprises two floating assemblies, each floating assembly comprises a guide rail frame, a sliding block is arranged in each guide rail frame, and one side of each sliding block is elastically connected with the axial end of the corresponding guide rail frame. The two sides of the polishing wheel are connected with the sliding blocks in a rotating mode. The driving mechanism comprises a power source, an adapter block is arranged on a rotating shaft of the polishing wheel, a closed annular gear rack is coaxially arranged on the polishing wheel, a power input shaft is connected to the adapter block in a rotating mode, a gear meshed with the annular gear rack is arranged on the power input shaft, and the power source is connected with the power input shaft through a universal flexible shaft.

The invention relates to a cutter rest for a lathe with a polishing function. The cutter rest comprises a sliding plate, a jacking and pressing block and a jacking and pressing assembly, wherein the sliding plate is used for installing a cutter tool, a long strip-shaped groove is formed in the sliding plate, the jacking and pressing block is connected onto the sliding plate in a sleeving way, the jacking and pressing assembly is fixedly arranged at one side, opposite to the long strip-shaped groove, of the sliding plate, the jacking and pressing assembly comprises a fixing ring and a pushing ring, the fixing ring is fixed with the sliding plate, the pushing ring is movably connected with the fixing ring through a plurality of screw rod assemblies, the cutter tool is vertically arranged into the long strip-shaped groove relative to the sliding plate, one side surface of the cutter tool is tightly pressed on one side of the long strip-shaped groove, the pushing ring moves through regulating the screw rod assemblies, and the jacking and pressing block is tightly pressed onto the other side surface of the cutter tool; a polishing grinding wheel is connected onto the jacking and pressing block in a sleeving way, and the polishing grinding wheel and the jacking and pressing block are rotationally connected; and a motor is also arranged on the sliding plate, and drives the polishing grinding wheel to rotate through a transmission assembly.

The invention discloses a dismounting device for a high-pressure gas storage tank, and relates to a dismounting tool. The dismounting device for the high-pressure gas storage tank comprises a supporting frame and a lead screw; a connecting hole is formed in the supporting frame; a central through hole is formed in the center of the supporting frame; the lead screw passes through the central through hole; the lead screw is rotatably connected with the supporting frame; a limiting block is fixedly arranged on the lead screw; the limiting block is positioned at the lower end of the central through hole; the upper end of the lead screw is connected with a rotary handle; the lower end of the lead screw is connected with an ejector; the ejector comprises an ejector block and a guide rod fixedly arranged on the supporting frame; the ejector block is in sliding connection with the guide rod; the lead screw passes through the center of the ejector block; and the ejector block is in threaded connection with the lead screw. According to the dismounting device disclosed by the invention, a lining is pushed out from a metal shell through the ejector, so that interference between the supporting frame and the lining can be avoided in a process of separating the metal shell form the lining.

A household single-motor processor for rotating food waste forwardly and reversely and crushing the food waste comprises a base, a rotating shaft, a cup body, a motor, an upper cutter crushing assembly and a lower cutter crushing assembly, wherein the upper cutter crushing assembly and the lower cutter crushing assembly are sequentially and coaxially arranged in the cup body from top to bottom, and a discharge hole is formed in the lower portion of the cup body; the lower end of the upper cutter crushing assembly is in transmission connection with the upper end of the lower cutter crushing assembly through a reversing device. The processor has reasonable design and a compact structure, high-speed cutting, crushing and grinding are carried out up and down in the forward direction and the reverse direction, the crushing assemblies are designed into four-level high-speed rotating cutters, the crushing and grinding effects are good, and the processor has the advantages of good damping effects, strong stability and low noise; after crushing, granular residues with very small diameters are directly discharged into a sewer pipe and an urban sewage pipeline along with the wastewater, and finally are sent to a municipal sewage treatment plant, so that a new treatment method is opened for food waste, and the processor has great social benefits, environmental protection benefits and economic benefits.

The invention relates to a minitype water pump. The minitype water pump comprises a pump body, a transmission device and a pump cover; the transmission device is arranged in the pump body, and the pump body is movably connected with the pump cover; an adjusting plate is arranged on the pump cover, an arc-shaped adjusting hole is formed in the adjusting plate, and a plurality of convex ribs distributed equidistantly are arranged on one inner side of the arc-shaped adjusting hole; an adjusting rod vertical to a pump cover body is arranged on the upper end face of the pump cover body, and the adjusting rod is positioned in the arc-shaped adjusting hole; the transmission device comprises an annular magnetic ring, and grooves A are symmetrically formed in the end face of the end, near an impeller, of the annular magnetic ring; a channel for a transmission shaft to pass through is formed in the pump body; and a heat-dissipating channel is formed in the channel along the long-axis extending direction. The minitype water pump has the advantages of effectively controlling the quantity of water flowing out from a water outlet of the pump cover according to the pressure of the water pump, avoiding dry burning phenomenon and prolonging the service life of the water pump.

The invention discloses a conveying device for industrial electrical automatic production. The device comprises two sets of mounting bases and two sets of mounting frames, supporting columns are symmetrically mounted at the ends, away from each other, of the bottoms of the two sets of mounting bases and mounting frames, main guide rollers are symmetrically arranged at the ends, away from each other, of the inner sides of the two sets of mounting bases and the two sets of mounting frames, a conveying belt is jointly arranged on the outer sides of the two sets of main guide rollers, and a first driving assembly in transmission connection with the adjacent main guide roller is arranged at the bottom of one mounting base. Through cooperative use of the mounting bases, the mounting frames, the conveying belt, an adjusting assembly, the first driving assembly and an extension assembly, the distance between the first guide roller and the second guide roller is shortened, a certain length of the conveying belt is released to cooperate with the mutual separation of the mounting bases and the mounting frames, the conveying distance of the whole conveying device is automatically adjusted, and therefore, the application range and the use effect of the device are greatly improved.

The invention relates to the technical field of waste gas treatment, in particular to a dust-containing waste gas comprehensive treatment device which comprises a filter box and a water washing box, a cleaning mechanism is arranged on the inner wall of a filter cartridge, a collecting barrel is arranged on one side of the filter cartridge, a collecting assembly is arranged on the inner wall of the collecting barrel, and the collecting assembly comprises a transmission structure. According to the waste gas treatment device, waste gas obtained after water washing can be detected through the detection pipe, when laser signals emitted by the laser emitter are effectively collected by the laser signal receiver, it is judged that the waste gas is treated cleanly, if the waste gas is not treated cleanly, the waste gas is guided into the gas inlet pipe again through the backflow pipe, and then the waste gas is discharged. The laser signal is not stably received, so that a worker is reminded to replace clean water in the water washing tank and clean a filter screen and a filter cartridge in time, the intelligent degree is high, the waste gas which is not completely and cleanly treated is prevented from being directly discharged, and the treatment effect on the waste gas containing dust is good.

The invention relates to an amblyopia therapeutic apparatus and a using method thereof and particularly to an amblyopia therapeutic apparatus with adjustable power and a using method thereof. The amblyopia therapeutic apparatus comprises a central processing unit, a laser generator, a timing switch, a power conditioner, a transmission fiber and a power tester, and solves a technical problem that the power of the laser emitted by the laser generator cannot be tested at any time and cannot be adjusted in the prior art.

The invention discloses a convenient bedside table for energy saving and environmental protection. The convenient bedside table comprises a bedside table body, a chamber for placing books and a movable cover plate for closing the bedside table. The chamber is internally provided with a control mechanism for controlling the movable cover plate to automatically close the chamber and a trapezoidal driving plate for driving the control mechanism to work. Through the arrangement of the chamber and the movable cover plate, a teacup can be prevented from being overturned to wet the books, so that thecleanliness of the books is effectively ensured. Through the arrangement of the control mechanism, the movable cover plate can automatically close the chamber after the books are placed in the chamber, manual operation is avoided, and the comfort of people is improved. Through the arrangement of the trapezoidal driving plate, people are enabled to open the page read directly for directly placement and pick up the book directly for reading for the next time, so that convenience and practicability are achieved.

The invention relates to the technical field of cables, in particular to a low smoke halogen free cross-linked insulation flame-retardant polyvinyl chloride sheath power cable. The low smoke halogen free cross-linked insulation flame-retardant polyvinyl chloride sheath power cable comprises a plurality of cable cores, wherein each cable core comprises an annealing copper conductor and a low smokehalogen free cross-linked insulation flame-retardant polyvinyl chloride insulation layer, the low smoke halogen free cross-linked insulation flame-retardant polyvinyl chloride insulation layer is arranged outside the annealing copper conductor in an extruded manner, an isolation plate is arranged at a central position of the plurality of cable cores, tooth tips are arranged at two sides of an endpart of the isolation plate, a flame-retardant layer is arranged outside the isolation plate in an extruded manner, a signal shielding layer is arranged outside the flame-retardant layer in an extruded manner, a metal armoring layer wraps the signal shielding layer, a buffer layer wraps the metal armoring layer, and a polyvinyl chloride sheath is arranged outside the buffer layer in an extruded manner. The cable cores are isolated by the isolation plate with snowflake-shaped cross section, and the cable cores are prevented from being twisted to affect a transmission effect; and the internal relative stability of the cable is guaranteed by the flame-retardant layer with ratchet-shaped cross section, and meanwhile, the flame-retardant effect can be guaranteed.

The invention discloses a cable chain armoring machine anti-oblique belt pulley device for a vehicle. The device comprises a belt pulley bracket. One end of a belt pulley connecting rod is provided with a belt pulley elbow whose right end is fixedly equipped with a belt pulley support. The belt pulley support is rotatingly equipped with a belt pulley. The top of the belt pulley support is provided with a belt pulley baffle plate. According to the device, a strain gauge is fixed to the side wall of the belt pulley elbow to connect a data memory, a microprocessor is connected through the data memory, a temperature sensor and a humidity and air pressure sensor are connected through the microprocessor, the signals transmitted by the temperature sensor and the humidity and air pressure sensor are processed and analyzed through the microprocessor to generate a self compensation expansion signal, the signal is transmitted to the data memory to be stored for processing and application, the belt transmission effect is good, and the structure is simple and reasonable.

The invention relates to the technical field of planetary gear processing, in particular to a planetary gear processing system and processing technology, including a bottom frame, a support column, a support plate, a limit clamping mechanism and a grinding mechanism. In the grinding belt designed by the present invention, During the expansion process of the airbag, its good deformation ability can be used to drive the grinding sandpaper to closely fit the planetary gear teeth, so that the grinding sandpaper can grind the planetary gear teeth more thoroughly, and avoid the residual burrs on the planetary gear teeth affecting the follow-up of the planetary gear. Transmission effect during use; the arc plate provided by the present invention is formed by a plurality of groups of arc strips hinged through hinges, so that the inner support frame increases the space between the inner support frame and the planet wheel when the inner support frame supports the planet wheel. The contact area is large, to avoid the relative rotation of the planetary wheel during the rotation process, and to ensure that the support plate clamps the planetary wheel more stably.

The invention discloses an automobile-used cable chain armoring machine belt wheel device, which comprises a belt wheel support. One end of a belt wheel connection rod is provided with a belt wheel elbow; the right end of the belt wheel elbow is fixedly provided with the belt wheel support; the belt wheel is arranged on the belt wheel support in a rotating mode; and the top part of the belt wheel support is provided with a belt wheel baffle. The side wall of the belt wheel elbow is fixedly provided with a micro camera microscope, photographing data signals are transmitted to a local upper computer storage and analysis module through the camera microscope, the crack tendency and the service life of the belt wheel elbow can be analyzed accurately, the belt transmission effects are good, and the structure is simple and reasonable.

The invention discloses a TYPE-C function test system which comprises a test body. The test body comprises a test module and a central control module, the test module comprises a low-speed unit and ahigh-speed unit, and the test module is connected with a TYPE-C interface. The TYPE-C is subjected to function detection through the low-speed unit and the high-speed signal testing unit in the testing module, performance testing does not need to be performed multiple times, and therefore the problem of repeated plugging and unplugging is solved, and the testing efficiency is improved; and the data detected by the low-speed unit and the high-speed signal testing unit can be accurately verified through a calibration unit so that the detected data is more accurate, and the testing efficiency isimproved.

The invention discloses a dismounting device for a high-pressure gas storage tank, and relates to a dismounting tool. The dismounting device for the high-pressure gas storage tank comprises a supporting frame and a lead screw; a connecting hole is formed in the supporting frame; a central through hole is formed in the center of the supporting frame; the lead screw passes through the central through hole; the lead screw is rotatably connected with the supporting frame; a limiting block is fixedly arranged on the lead screw; the limiting block is positioned at the lower end of the central through hole; the upper end of the lead screw is connected with a rotary handle; the lower end of the lead screw is connected with an ejector; the ejector comprises an ejector block and a guide rod fixedly arranged on the supporting frame; the ejector block is in sliding connection with the guide rod; the lead screw passes through the center of the ejector block; and the ejector block is in threaded connection with the lead screw. According to the dismounting device disclosed by the invention, a lining is pushed out from a metal shell through the ejector, so that interference between the supporting frame and the lining can be avoided in a process of separating the metal shell form the lining.

The present invention discloses a novel cable sheath which comprises a plugging port, the right end of the plugging port is provided with a reinforcing ring, the right end of the plugging port is fixedly connected with the left end of the reinforcing ring, the inner ring of the reinforcing ring is provided with a rubber tube, and the inner ring of the reinforcing ring is fixedly connected with the outer surface of the rubber tube. An outer sheath ring is arranged in the rubber pipe, extrusion mechanisms are evenly arranged in the outer sheath ring, the inner wall of the outer sheath ring is fixedly connected with the top ends of the extrusion mechanisms, pressure reduction mechanisms are arranged at the bottom ends of the extrusion mechanisms, and the bottom ends of the extrusion mechanisms make contact with the top ends of the pressure reduction mechanisms. The novel cable sheath solves the problems that a cable buried underground is lack of certain protection, if the cable is not protected in place, the cable is difficult to maintain once the cable is damaged, the cable buried underground is often additionally provided with a sheath, but the existing cable sheath is general in protection effect and cannot effectively resist pressure, so that the service life of the cable is shortened.

The invention discloses a wireless sensor network gateway node power control method based on N strategies, and belongs to the technical field of wireless sensor networks. The method comprises the steps of describing a scene, resolving a problem, deriving a tradeoff relation between a data packet average sojourn time E(T) and a node average energy consumption E(P), and deriving an expression of the optimal sleep time N* for guiding actual application. Being different from the traditional wireless sensor network node life cycle prolonging method, the method of the invention aims at the special application scene, and is derived from the actual application, and the setting of the scene is meticulous and reasonable; a gateway node sleep method based on N strategies is provided by focusing on gateway node research from the reality, the relation between node sleeping and business is comprehensively considered, and thus the method has a practical guiding significance.

The invention relates to the technical field of networks, in particular to auxiliary equipment for network flow analysis. The auxiliary equipment comprises an auxiliary device body, a control panel, afirst interface and a second interface, the auxiliary device body is of a rectangular box structure, the control panel is installed on a front panel of the auxiliary device, the first interface and the second interface are installed on a rear panel of the auxiliary device, and the first interface is located above the second interface. The auxiliary equipment further comprises an adjusting installation mechanism, a movable supporting mechanism, a waterproof ventilation mechanism and a dustproof cleaning mechanism. The adjusting installation mechanism is installed on the inner wall of the bottom face of the auxiliary device body, the movable supporting mechanism is installed on the outer wall of the bottom face of the auxiliary device body, the waterproof ventilation mechanism is connectedto the top face of the auxiliary device body in an embedded mode, and the dustproof cleaning mechanism is installed at the first connector and the second connector and covers the first connector and the second connector. The auxiliary equipment is suitable for various circuit boards with different specifications and models, so that the circuit board is fast and convenient to install; and the protective performance is high, supporting is stable, and moving is convenient.

The invention discloses a ligament stretcher, which relates to the technical field of ligament stretchers. The ligament stretcher comprises a fixed box, a groove is formed in the outer surface of thefixed box, the inner bottom wall of the groove is fixedly connected with a fixed rod, a supporting rod is fixedly hinged to the outer surface of the fixed rod through a pin shaft, the outer surface ofthe supporting rod is fixedly connected with a fixing ring, the end, away from the fixed rods, of the supporting rod is fixedly connected with a rotating rod, the top end of the rotating rod is sleeved with a first bearing; a supporting plate is arranged at the top of the rotating rod; a pedal is fixedly connected to the upper surface of the supporting plate; supporting sliding rods are fixedly connected to the bottom face of the supporting plate, universal pulleys are fixedly connected to the bottom ends of the supporting sliding rods, a gear motor is fixedly connected to the inner bottom wall of the fixed box, a winding rod is fixedly connected to the output end of the gear motor, a traction rope is fixedly connected to the outer surface of the winding rod, and a through hole is formedin the outer surface of the fixed box. The ligament stretcher beneficial to growth of children has the advantages of automatic stretching and convenience in use.

The invention relates to a polishing machine for an extending type lathe. The polishing machine comprises a polishing grinding wheel, a connecting mechanism and a driving mechanism. The connecting mechanism comprises a clamping block for being clamped on a tool rest, a screw rod is arranged in the clamping block, a plurality of screws for locking the screw rod are arranged in the clamping block, a rotary disc is arranged at one end of the screw rod, and the rotary disc is rotatably fixed with the screw rod through a rotary fixing mechanism. A sliding groove coaxial with the radial direction of the rotary disc is formed in the rotary disc, the axis of the polishing grinding wheel is fixed to the sliding groove of the rotary disc through a screw rod assembly, and the polishing grinding wheel is driven by the driving mechanism to rotate. A closed annular gear rack is coaxially arranged on the polishing grinding wheel, a through connection block is rotatably connected with a power input shaft, the power input shaft achieves transmission through a gear meshed with the gear rack, the driving mechanism comprises a power source, the power source is connected with the power input shaft, and the power source is fixed to the tool rest. The polishing machine is simple in structure and high in efficiency.

The invention relates to a wireless transmission thermoelectric device, which comprises a thermoelectric device, a conversion circuit, a wireless transmission coil and a power supply storage and control circuit, wherein a transmitting coil or a receiving coil of the wireless transmission coil is wound on a device semiconductor column of the thermoelectric set. By winding the transmitting coil or the receiving coil on the device semiconductor column of the thermoelectric group, the thermoelectric device can be thinned, and the coil is wound densely, so that the sensing efficiency of the coil is improved.

The invention provides a music pencil sharpener. The music pencil sharpener comprises a shell, a cutting cavity, a sound box cavity and a scrap collecting cavity are formed in the shell, a cutting mechanism used for sharpening a pencil is arranged in the cutting cavity, the scrap collecting cavity is used for collecting cutting scraps and is in communication with the cutting cavity, an eight-sound movement and a reed are arranged in the sound box cavity, the cutting mechanism can transmit towards the eight-tone movement to enable the eight-tone movement to stir the reed to produce sound, and a switch is further arranged on the shell and used for controlling the cutting mechanism to transmit towards the eight-tone movement or not to transmit towards the eight-tone movement. The cutting mechanism is controlled by the switch to transmit to the eight-tone movement or not to transmit to the eight-tone movement, so that the music sounding function can be controlled to be started or stopped; in the pencil sharpening process, the sharpening mechanism transmits to the eight-tone movement to enable the eight-tone movement to toggle the reed to give out melodious music, and the interestingness of pencil sharpening is improved; and in the pencil sharpening process, the cutting mechanism does not transmit to the eight-tone movement, so that music sound cannot be made, and the music pencil sharpener is suitable for occasions needing to concentrate on or quiet.