29results about How to "Increase vibration intensity" patented technology

The invention relates to the technical field of concrete waste recycling, and discloses a concrete recycling and crushing device based on urban building waste cyclic utilization, the concrete recycling and crushing device comprises a treatment box assembly, the top of the inner side of the treatment box assembly is provided with a crushing assembly, the treatment box assembly comprises a box body, and screening outlets are formed in the two sides of the box body; a magnetic separator is installed at the bottom of the treatment box assembly, a collecting box is connected to the bottom of the treatment box assembly, a screening mechanism is arranged on the inner side of the treatment box assembly, the crushing assembly crushes concrete waste, and the crushing assembly drives the screening mechanism to conduct step-by-step vibration screening on the crushed concrete waste during operation. And large-volume crushed concrete waste is discharged from the screening outlet, and small-volume crushed concrete waste enters the collecting box after being screened step by step.

The invention discloses a disinfection and sterilization device for livestock breeding, and relates to the technical field of disinfection and sterilization. The device comprises a device body, a plurality of round holes are formed in the top of the device body, power supply assemblies are arranged on the outer walls of the left and right sides of the device body, and electric sliding rails are arranged on the left and right sides of the inner wall of the device body; an anti-shadow device is arranged in the device main body, an anti-seaming device is arranged below the anti-projection device, and an anti-blocking device is arranged above the anti-seaming device; the anti-projection device comprises an electric telescopic rod, and the outer wall of the fixed end of the electric telescopic rod is slidably installed in the electric sliding rail. The irradiation range of the sterilization lamp assembly can be enlarged, the irradiation angle can be increased, sterilization dead angles are avoided, and the risk that due to building projection, light source irradiation brightness is insufficient, sterilization and disinfection are poor, and the infection risk of bred animals is increased is effectively prevented.

The utility model discloses a screening device for fish feed particles, and relates to the technical field of screening devices. The vibrating screen comprises a supporting frame and a screen connected to the inner wall of the supporting frame in a sliding mode, a discharging hopper is arranged on the supporting frame in a communicating mode, and the vibrating screen further comprises an adjusting portion arranged on the supporting frame; the vibrating part is arranged on the screen mesh; wherein the adjusting part is located above the oscillating part, the screen only slides on the supporting frame in a very small range, the adjusting part comprises a power assembly, and the power assembly is installed at the top of the supporting frame and comprises a rotary disc arranged on the supporting frame. According to the fish feed particle screening device, by arranging the adjusting part, the problems that when an existing fish feed particle screening device is used, the oscillation strength is inconvenient to adjust, the screening strength is difficult to adjust according to fish feed particles with different sizes and hardness, and particles are damaged due to too strong oscillation or screening is not thorough due to too weak oscillation are solved.

The utility model discloses a pulse delivery device, which relates to the technical field of grain machinery and comprises delivery equipment and a pulse dust collector, the bottom of the pulse dust collector is sequentially and fixedly provided with a flexible connecting pipe, an ash bucket, a flexible sleeve and a cinder valve along the vertical direction, and the pulse dust collector is communicated with the input end of the cinder valve through the ash bucket, the flexible connecting pipe and the flexible sleeve. The pulse dust collector and the ash bucket are fixedly sleeved with annular tables, a plurality of through holes penetrating through the two annular tables are evenly formed in the top of the annular table on the pulse dust collector, screws are movably sleeved with the through holes, the two ends of each screw extend out of the corresponding through hole, a baffle is fixedly installed at the top end of each screw, and a nut is sleeved with the lower end of each screw in a threaded mode. According to the pulse dust collector, the two ends of the dust hopper are flexibly connected with the pulse dust collector and the dust discharging valve respectively, so that the vibration strength of the vibration motor can be enhanced, and the damage of vibration to elements on the pulse dust collector can be avoided.

The invention discloses an automatic steel ball feeding machine for a ball mill, which comprises a ball storage unit, a push plate feeding machine and an inclined L-shaped conveying groove, the device further comprises an overload protection unit, the overload protection unit can automatically discharge excessive steel balls added into the ball storage chamber and store the steel balls additionally, and after a certain number of steel balls in the ball storage chamber are discharged from the discharging opening, the additionally stored steel balls can be automatically added into the ball storage chamber. According to the automatic ball feeding machine, the overload protection unit is arranged, overload discharging can be automatically conducted, unloaded steel balls are automatically added into the ball storage chamber through the height change of the ball storage chamber in the working process, overload of the ball storage chamber can be effectively avoided, and meanwhile unnecessary troubles caused by the fact that additionally stored steel balls are manually added into the ball storage chamber again are avoided.

The present invention belongs to the technical field of lake and reservoir water ecology improvement and restoration, and discloses a method for suppressing thermal stratification of reservoirs by stimulating water flow oscillations through daily regulation and scheduling of reservoirs. The daily regulation and scheduling process of the reservoir causes gravity waves to form in the main stream of the reservoir, and induces high-frequency water flow oscillations in the tributary bay; the water level in the bay has high-frequency fluctuation characteristics through the water flow oscillation process, and the flow velocity of the water body in the bay is intermittently increased or reduced; the water body is intermittently mixed through the periodic high-frequency oscillation process, causing high-frequency fluctuations in water temperature, thereby achieving the effect of suppressing water temperature stratification. The present invention generates water level fluctuations in front of the dam by regulating the downstream flow of the hydropower station, triggering gravity waves in the main stream, and then inducing high-frequency water flow oscillations in the tributary bay. The present invention can effectively improve the density stratification characteristics of deepwater lakes and reservoirs. Compared with the currently commonly used engineering measures such as stratified water intake, water pumping and aeration, the present invention has the advantages of simple operation, easy implementation, and obvious effect.

The present invention relates to the technical field of spherical silicon micropowder, and specifically to a spherical silicon micropowder balling fire channel wall cleaning device; the device comprises a mounting tube, the inner wall of which is provided with an annular groove; a gear ring is rotatably sealed and connected in the annular groove; a cleaning plate is fixedly installed on the inner wall of the gear ring; the present invention provides a cleaning plate, so that the cleaning plate can rotate around the inner wall of a balling fire channel tube driven by the gear ring, so that the cleaning plate pushes the molten silicon powder adhering to the inner wall of the forming fire channel tube to fall off, thereby eliminating the need to use compressed air to clean the molten silicon powder on the inner wall of the fire channel tube, avoiding the impact and wear of the compressed air on the fire channel wall, and improving the service life of the fire channel tube. At the same time, the device reduces the blowing of oxygen into a high-temperature molten silicon micropowder environment, reduces the problem of oxidation and solidification of the molten silicon micropowder, and ensures that the balling equipment can effectively spheroidize the molten silicon micropowder, thereby improving the purity of the spherical silicon micropowder and the quality of spheroidization.

The utility model provides a kind of damping mechanism for ball mill, comprising: base, below the barrel of corresponding ball mill;Several damping components are located on the base, each the damping component includes upper and lower sequentially connected roller, upper and lower telescopic damping spring, upper and lower telescopic air bag, several air bags are respectively connected exhaust device and inflator, the roller is arranged on the barrel outer wall, several damping springs and several air bags are equipped with follow-up plate, the follow-up plate side is equipped with trigger, the base is equipped with several pressure boost trigger devices below the follow-up plate and corresponding several triggers, the pressure boost trigger device is used to trigger the inflator and corresponding air bag inflation;The damping strength of several damping components can be adjusted to increase with the increase of vibration intensity of different parts of barrel, to improve the overall damping effect of damping mechanism.

The invention provides a motor movement method, device and equipment of nursing equipment, a medium and a program product. The method comprises the following steps: acquiring a mode starting signal of a motor; controlling a control parameter corresponding to the forward rotation of the motor to change in a preset parameter range according to the mode starting signal, and controlling a control parameter corresponding to the reverse rotation of the motor to change in the preset parameter range to generate a first driving signal corresponding to the forward rotation of the motor and a second driving signal corresponding to the reverse rotation of the motor; and in the same period, the first driving signal and the second driving signal are sent to the motor. According to the embodiment of the invention, the vibration strength of the motor is higher, and large-amplitude vibration sweeping can be realized, so that the cleaning effect of the nursing equipment is better.

The utility model discloses a shavings screening machine for shaving board processing relates to shaving board processing technical field, including frame, spring, sieve, sieve plate, sieve pore and vibrating machine. The utility model discloses the cooperation of frame, spring, sieve, sieve plate, sieve pore, vibrating machine, prevent blocking device, turn over subassembly, rubber boss, drive belt and the sheath of using, the solution existing linear vibrating screen, since the shavings are mostly the flaky structure with certain puffy, its movement in the sieve mainly depends on the overall vibration of sieve, and the upper shavings are easily accumulated with the buffer and have poor mobility, and it is difficult to be fully shaken by sieve plate, leading to this part of shavings mobility can not be effectively screened, further influence screening effect, simultaneously, the edge of flaky shavings is easy to be stuck in sieve pore, in addition, the continuous extrusion of shavings to sieve pore in the vibration process, sieve pore is easily caused to be blocked, not only needs frequent shutdown cleaning for a period of time, also reduced screening efficiency.

The energy-saving type anchor rod limiting device comprises a hollow limiting body, a rubber sleeve and a supporting plate, a plurality of through grooves are formed in the middle of the limiting body, the lower ends of the through grooves are inclined planes, and the inclined planes extend towards the lower portion of the outer side of the limiting body. A dustproof mechanism used for blocking drilling dust is arranged on the inner side of the limiting body. Compared with the prior art, the limiting device has the advantages that the overall length of the limiting body can be adjusted by adjusting the supporting plate at the upper end, the drilling depth can be controlled when the limiting body is arranged at the position of a bayonet device of the roof bolter in a sleeving mode, and therefore the roof bolter can conduct standard-depth drilling, energy saving of drilling construction of the roof bolter is achieved, and the drilling efficiency of the roof bolter is improved. And meanwhile, dust falling from a drill hole of the roof bolter is cleaned in time through the dustproof mechanism, the lower end of the limiting main body can be stably arranged on a bayonet device of the roof bolter in a sleeving mode, and stability is enhanced.

The invention belongs to the technical field of solid waste treatment, and particularly relates to solid waste environment-friendly treatment equipment which comprises a machine table. A crushing unit is arranged on the top face of the middle of the machine table and used for crushing concrete blocks. The crushing unit comprises a door-shaped cover; a first hydraulic cylinder is fixedly connected to the middle of the top face of the door-shaped cover. A lower pressing plate is arranged at the bottom end of a piston rod of the first hydraulic cylinder. Second hydraulic cylinders are arranged on the two sides of the bottom end of a piston rod of the first hydraulic cylinder. The end of a piston rod of the second hydraulic cylinder is hinged to the side edge of the top face of the lower pressing plate. A first hydraulic cylinder pushes a lower pressing plate to press a concrete block, and second hydraulic cylinders on the two sides alternately extend and contract, so that the two sides of the lower pressing plate alternately press the concrete block, and the crushing effect on the concrete block is improved; and a waste steel structure wrapped in the concrete block is exposed, the situation that the waste steel structure wrapped with concrete is fed into the crushing equipment is reduced, and the operation safety of the crushing equipment is improved.

The invention relates to the technical field of screening mechanical equipment, in particular to a multi-layer water screen screening machine which comprises a screening box, a screen, a jacking mechanism and a water spraying mechanism, the screen is obliquely inserted into the screening box, and the two ends, in the material conveying direction, of the screen are elastically connected to the screening box; the multiple screens are arranged in parallel in the vertical direction at intervals. The jacking mechanism is inserted into the screening box and comprises a plurality of jacking assemblies used for periodically jacking the screen. The water spraying mechanism is arranged on the screening box and used for spraying water from top to bottom so as to wash the materials. During use, materials can move along the screen meshes and be gradually screened by the screen meshes under the guide of the inclined planes of the screen meshes and the driving of water flow, and the jacking assemblies periodically jack up the corresponding screen meshes, so that the materials are broken, the retention time of the materials on the screen meshes is prolonged, the screen meshes can vibrate, the blockage of screen holes can be reduced, and the service life of the screen meshes is prolonged. The screening effect is improved.

The invention relates to the technical field of mechanical arm balance, in particular to an excavator mechanical arm self-weight balance system which comprises a balance detection module, a self-weight balance module and a self-weight balance module. The execution module is connected with the balance detection module and used for controlling balance adjustment of the excavator mechanical arm; the control module is connected with the balance detection module and the execution module and used for determining the output flow speed of hydraulic oil in a hydraulic cylinder according to the variance of the vibration strength of the excavator mechanical arm or determining the damping strength of the excavator mechanical arm according to the average delay duration of action execution of the excavator mechanical arm. And the rigidity of the excavator mechanical arm is determined according to the average delay duration of the action execution of the excavator mechanical arm and the displacement amount of the tail end of the excavator mechanical arm. The operation stability of the self-weight balance system is improved.

The utility model relates to a kind of bone conduction sound production device and bone conduction earphone, bone conduction sound production device includes support, vibrator assembly and stator assembly.Vibrator assembly is movably arranged in the inside of support, vibrator assembly includes magnetic circuit assembly, and the at least outer edge of the both ends of magnetic circuit assembly along first direction is formed first magnetic pole part and second magnetic pole part respectively, and the polarity of first magnetic pole part and second magnetic pole part is opposite;Stator assembly is fixedly arranged in the inside of support, and stator assembly includes first coil and second coil, and the current direction of first coil and second coil is opposite, and first magnetic guide support is arranged between first coil and second coil;First coil is encircled in the outside of first magnetic pole part, and second coil is encircled in the outside of second magnetic pole part;The utility model greatly improves the vibration intensity of vibrator assembly, so that the sensitivity of bone conduction sound production device in effective frequency domain range is effectively improved, thereby the loudness of bone conduction earphone is improved.

The present invention discloses a multi-plane layer three-dimensional multi-directional reinforced sound cone and a manufacturing method thereof, belonging to the technical field of speaker sound cones, which enables the sound cone to have high strength at a low weight, and solves the technical problems that the prior art cannot break through in terms of segmented vibration, transient response, and harmonic distortion. The sound cone of the present invention is composed of a plurality of plane layers stacked up and down, the plane layers are a repeated folding structure, and the cross-section of the plane layers is a toothed structure. The present invention effectively improves the defects of speaker distortion and improves the vibration strength of the sound cone. The stacked folded and reinforced structure not only increases the rigidity of the diaphragm, but also maintains the low-weight diaphragm requirement, and has a low production cost and a simple manufacturing process.

The utility model relates to a kind of multilayer rigid battery systems, including battery system framework, the battery system framework inside installs two or three multiple base battery package system unit;Two adjacent base battery package system units are connected to the upper and lower of middle layer support assembly of framework shape by system unit connecting hole and fastener, the system unit connecting hole of base battery package system unit in bottom layer is fixedly connected rigid connection component by fastener, rigid connection component and battery system framework are welded or fastener integrally;Middle layer support assembly is fixedly installed in battery system framework by fastener by connecting block or support;The utility model can effectively ensure connection reliability, sealing reliability and compactness in the environment of high vibration intensity, can effectively prevent the problems such as box body and other structural member rupture, cell damage, connection loosening and sealing failure.

The invention discloses a mechanical vibration anti-blocking type ball distributing structure and a ball mounting and cleaning method thereof, and belongs to the technical field of microelectronic manufacturing and packaging. The mechanical vibration anti-blocking type ball distributing structure comprises an upper end cover, a lower end cover, a ball conveying assembly, a vibration assembly and a ball spraying assembly; the upper end cover and the lower end cover are fixed through an inner shaft, and the ball conveying assembly, the vibration assembly and the ball spraying assembly are supported on the upper end cover and the lower end cover. The ball conveying assembly is used for conveying the solder balls into the ball spraying assembly, and the solder balls are sprayed out by the ball spraying assembly; the ball conveying assembly comprises a ball storage bin; the vibration assembly slightly vibrates the ball storage bin, so that the solder balls in the ball storage bin are prevented from being blocked at the outlet of the ball storage bin. According to the mechanical vibration anti-blocking type ball distributing structure and the ball mounting and cleaning method thereof, the structure can redistribute a solder ball stacking mode, solder ball accumulation is relieved, the ball blocking problem at the ball leaking hole, the ball conveying track and the nozzle is effectively solved, and therefore the ball mounting efficiency is greatly improved.

The invention relates to the technical field of waste gas treatment, in particular to a protective film production waste gas filtering device which comprises a vertically-arranged filtering cylinder, a winding mechanism, an unwinding mechanism, a switching mechanism and a filtering film, and the winding mechanism, the unwinding mechanism, the switching mechanism and the filtering film are inserted into the filtering cylinder. The winding end is wound on the winding mechanism, and the unwinding end is wound on the unwinding mechanism; the part, between the winding mechanism and the switching mechanism, of the filtering membrane forms a conical shape, the filtering membrane is configured to have a first state and a second state, in the first state, the small end of the conical shape of the filtering membrane is arranged downwards, and at the moment, the filtering membrane can vibrate through winding of the winding mechanism, so that impurities on the filtering membrane can be shaken off, and the filtering membrane can be separated from the filtering membrane; in the first state, the filter membrane can be replaced by a new filter membrane, and in the second state, the conical small end of the filter membrane faces upwards; the switching mechanism is used for switching the state of the filtering membrane.

The invention discloses a fabric impregnation device and an impregnation method thereof, and relates to the technical field of fabric production equipment.The fabric impregnation device comprises a supporting mechanism and a dip dyeing mechanism, a dip dyeing box is fixedly installed on a bottom plate, a swing mechanism and a drying box are arranged on two sets of bending rails on the two sides of the dip dyeing box respectively, and the dip dyeing mechanism is arranged below an air cylinder; the dip-dyeing disc is fixedly installed in the dip-dyeing box, the two vibrators are symmetrically installed on the dip-dyeing disc in a sliding mode, the two arc-shaped frames are longitudinally installed above the dip-dyeing disc, the I-shaped frame above the arc-shaped frames and the bending rail form a connecting rail, the air cylinder drives the fabric barrels on the I-shaped frame and the arc-shaped frames to move towards the dip-dyeing box, and the arc-shaped frames drive the two vibrators to move in the opposite directions. And the vibrator vibrates the dip dyeing liquid in the dip dyeing box to fully dip-dye the fabric on the fabric cylinder. Bubbles between fabrics can be eliminated, the whole roll of fabric is fully dip-dyed, and the fabric dip-dyeing quality and efficiency are improved.

The utility model discloses a reinforcing machine. The reinforcing machine comprises a board card module, a network access module, an electrical conversion module and at least two damping structures, the network access module and the electrical conversion module are electrically connected with the board card module; the at least two damping structures are respectively arranged between the board card module and the network access module and between the board card module and the electrical conversion module, and are used for reducing vibration between the network access module and the board card module and vibration between the electrical conversion module and the board card module; the reinforcing machine further comprises at least two heat dissipation structures, and the at least two heat dissipation structures are arranged in the board card module and the network access module respectively and used for discharging heat generated in the working process of the board card module and the network access module. The damping structure and the heat dissipation structure arranged in the reinforcing machine can ensure that the reinforcing machine can stably operate in the environment with high vibration strength, high humidity and heat and high / low air pressure, the working efficiency of the reinforcing machine is ensured, and the service life of the reinforcing machine is prolonged.

The utility model discloses a filling device for fire extinguishing agent production relates to fire extinguishing agent production equipment technical field, the device includes storage tank, conveying pipe, pulse mechanism and support structure, and the upper end of storage tank is equipped with drive motor, and the inside is equipped with stirring mechanism, and the bottom is connected conveying pipe through electric control valve and flange connector, and the below of conveying pipe is connected pulse mechanism, and stirring mechanism contains rotating shaft, three circumferential array's paddle, and the edge of paddle is sleeved silica gel, and is equipped with miniature vibrator close to rotating shaft place, can scrape and scatter agglomerate of remaining, and conveying pipe has helical guide vane, and the outer wall is equipped with electromagnetic coil, can guide material to form helical flow state and prevent adhesion, and pulse mechanism includes elbow 45 degree taper angle shower nozzle and pulser. The device is through PLC linkage control, adapts dry powder, water system, foam and so on many types fire extinguishing agent, can reduce remaining, promote conveying fluency 80% or above, reduce energy consumption and maintenance cost, and be applicable to scale fire extinguishing agent production.

The utility model provides a vibration motor which comprises a motor body, an eccentric vibrator is installed on an output shaft of the motor body through an adjusting structure, the eccentric vibrator is a tungsten alloy eccentric vibrator, the adjusting structure comprises a check block, an adjusting through groove and a locking nut, the check block is fixedly installed on the output shaft of the motor body in a sleeved mode, and the adjusting through groove is formed in the check block. The adjusting through groove is formed in the eccentric vibrator, an output shaft of the motor body penetrates through the adjusting through groove, and the locking nut is arranged on the output shaft of the motor body in a threaded and sleeving mode. According to the vibration motor provided by the utility model, the eccentric vibrator is arranged on the output shaft of the motor body through the adjusting structure, and the arranged eccentric vibrator is a tungsten alloy eccentric vibrator, so that the vibration strength can be effectively improved, and meanwhile, the position of the eccentric vibrator on the output shaft of the motor body can be adjusted through the adjusting structure; therefore, the position of the eccentric vibrator can be adjusted, the vibration performance of the vibration motor is convenient to adjust, and the practicability is good.

The invention provides a motor movement method, device and equipment of nursing equipment, a medium and a program product. The method comprises the following steps: acquiring a mode starting signal of a motor; according to the mode starting signal, controlling a control parameter corresponding to the first rotation direction of the motor to change in a preset parameter range, controlling a control parameter corresponding to the second rotation direction of the motor to be unchanged, and generating a first driving signal corresponding to the first rotation direction and a second driving signal corresponding to the second rotation direction; in the same period, a first driving signal and a second driving signal are sent to the motor; wherein the first rotation direction is one of forward rotation and reverse rotation, and the second rotation direction is the other one of forward rotation and reverse rotation. According to the embodiment of the invention, one-way swing of the motor can be realized, and the swing amplitude of the motor is improved, so that the cleaning effect of the nursing equipment is better.

The utility model relates to the technical field of concrete anti-seismic detection, and discloses a concrete anti-seismic strength detection device. The concrete shock strength detection device comprises a base, limiting discs are fixedly installed on the front side and the rear side of the base, electromagnets are fixedly installed in the limiting discs, a limiting plate is installed above the base in an embedded mode, and a supporting plate is movably installed above the base through balls. When the right permanent magnet is attracted by the electromagnet, the right permanent magnet can drive the supporting plate to move towards the right side through the transmission block, when the left permanent magnet is attracted by the left electromagnet and the right permanent magnet is repulsive by the electromagnet, the supporting plate can be driven to move towards the left side through the transmission block, and the magnetic pole direction of the electromagnet is controlled by switching the current direction. By means of the mode, the movement direction of the supporting plate can be rapidly adjusted, and the vibration strength is improved.

The utility model discloses a double vibration type loudspeaker and bone conduction earphone, include: shell, shell includes fixed type fixed magnetic structure, and fixed type fixed magnetic structure is annularly arranged, voice coil structure, voice coil structure sets up in the fixed type fixed magnetic structure inner periphery, and voice coil structure and shell are fixedly arranged, first vibrating reed and second vibrating reed, the fixed part of first vibrating reed and the fixed part of second vibrating reed are arranged on the shell respectively, and first vibrating reed and second vibrating reed are located at both ends of fixed type fixed magnetic structure, first attractive block and second attractive block, first attractive block sets up on the vibration part of first vibrating reed, and second attractive block sets up on the vibration part of second vibrating reed. Adopt above -mentioned scheme, provide a kind of double vibration type loudspeaker and bone conduction earphone by first attractive block and second attractive block respectively under the action of voice coil structure and fixed type fixed magnetic structure vibration and superimposed enhancement vibration intensity.

The invention provides a screening machine and a using method thereof.The screening machine comprises a plurality of screening boxes, a screening platform and a transverse vibration meter, the screening boxes are stacked from top to bottom, and the bottom of the screening box on the lowermost layer is connected to the screening platform; every two adjacent screening boxes are connected through a sealing ring, and the side wall of each screening box is connected with a transverse vibration meter in a one-to-one correspondence mode. And the apertures of the screens in the screening boxes are sequentially reduced from top to bottom. According to the screening machine, the vibration intensity of each layer of screening box is controlled through the transverse vibration meter, so that the screening efficiency and speed are improved.

The utility model provides a powerful dust removal device for traditional Chinese medicinal materials, which effectively solves the problems of limited rolling strength and incomplete treatment of clay at dead corners on the surfaces of the traditional Chinese medicinal materials in the dust removal operation of the traditional Chinese medicinal materials in the prior art. According to the technical scheme for solving the problems, the screening device comprises a cylinder with an opening in the upper end, a hollow-out plate which is horizontal and can actively rotate is arranged in a cavity of the cylinder, a plurality of screen drums which are evenly distributed in the circumferential direction are arranged on the upper side of the hollow-out plate, the screen drums are made of filter screens, the screen drums and the hollow-out plate are connected through flexible connection structures, and the hollow-out plate drives the screen drums to revolve through the flexible connection structures when rotating; the flexible connection structure comprises a vertical lower shaft, the lower shaft is rotationally connected to the hollowed-out plate, an upper shaft coaxial with the lower shaft is arranged on the upper side of the lower shaft, an insertion hole corresponding to the lower shaft is formed in the upper bottom of the screen drum, and the lower shaft is inserted into the insertion hole. The upper shaft and the lower shaft are connected through a universal coupling; circular plates are arranged between the ends, close to each other, of the upper shaft and the lower shaft, and a plurality of compressed springs are arranged between the two circular plates.

This utility model relates to a bone conduction sound generating device and a bone conduction headphone. The device includes a support, a vibrator assembly, and a stator assembly. The vibrator assembly is movably disposed inside the support and includes a magnetic circuit assembly. At least at its outer edge, the magnetic circuit assembly has a first magnetic pole portion, a second magnetic pole portion, and a third magnetic pole portion located between the first and second magnetic pole portions along a first direction. The first and second magnetic pole portions are respectively located at both ends of the magnetic circuit assembly along the first direction. The stator assembly is fixedly disposed inside the support and includes a first coil. A first magnetic guide support and a second magnetic guide support are respectively disposed at both ends of the first coil along the first direction, and both the first and second magnetic guide supports also surround the outside of the magnetic circuit assembly. This utility model effectively improves the vibration intensity of the vibrator assembly, thereby effectively improving the sensitivity of the bone conduction sound generating device in the effective frequency range, and thus improving the loudness of the bone conduction headphone.