62 results about "Drumhead" patented technology

The invention relates to an electronic djembe drum and a drum surface manufacturing process, the electronic djembe drum comprises a drum body and a drum surface, and the drum surface is made of an ETPU material; the drum surface is circular, and a flange and an extension part are arranged on the drum surface; an adhesive layer is arranged on one side surface of the drumhead; the drum body further comprises a cavity, and a supporting assembly is arranged in the cavity. The supporting assembly comprises a metal plate, a buffering piece and a support. The beneficial effects are that the drum surface is made of the ETPU material, on the premise that the traditional tone and touch are maintained or approached, the instantaneous impact peak value is greatly reduced, and the knocking sensitivity and comfort are improved; the central area and the edge area of the drumhead are distinguished by adopting a flange structure, and the flange is arranged close to the side wall of the cavity and can accurately divide different trigger areas, so that the system can be positioned to the edge of the drumhead more easily, and different trigger modes are activated to generate different sounds or effects; the supporting assembly abuts against the drum face, deformation and looseness of the drum face in the using process are reduced, and the stability and durability of the drum body are ensured.

A Card macro drum of a variable Bongoo drum comprises a drum box, a drum face and a snare assembly, the side wall of the drum box is provided with limiting hollowed-out parts in an opposite mode, the two ends of the snare assembly are provided with guide sliding columns, and the guide sliding columns are contained in the limiting hollowed-out parts respectively; the limiting hollowed-out part is provided with a first restraining position close to the drum head and a second restraining position away from the drum head, the snare assembly is attached to the drum head when the guide sliding column is contained in the first restraining position, and the snare assembly is away from the drum head when the guide sliding column is contained in the second restraining position. The device is convenient to operate, and parts do not need to be additionally added and disassembled when the two states of the Card macro drum and the Bongoo drum are switched.

A tuning device for a drum includes a drum attachment mechanism having a shell attachment means fixedly attachable to a drum shell and a hoop attachment means for engaging and tensioning a drum head. The drum attachment mechanism further includes at least one non-rotating annular ring with a circumferential slot and a plurality of fasteners forming part of the shell or hoop attachment means. A tuning ring is concentrically disposed between opposing edges of the non-rotating annular ring and is rotatable therewithin. The tuning ring includes a plurality of helical channels that accommodate the fasteners. A tuning tab extends outwardly from the tuning ring through the circumferential slot to control rotation of the tuning ring. Rotation of the tuning ring causes axial movement of the tuning ring and the non-rotating annular ring, thereby increasing or decreasing tension on the drum head.

The invention discloses a drum surface pressing device, which is characterized by comprising a tabletop table, a bracket, a plurality of pressing devices and a drum, the support is installed on the table top table, and the drum is placed on the table top table. The pressing devices are movably installed on the support along the X axis, a first pressing block is installed at the bottom end of each pressing device, and the pressing devices drive the first pressing blocks to press the drum face of the drum along the Y axis. The plurality of pressing devices in the device can move in the Y-axis direction to press the drumhead, so that the stability and coaxiality of the drumhead after being fixed are ensured, and the use effect of the drumhead is not influenced. A plurality of pressing devices in the device can move in the X-axis direction, so that drum surfaces with different diameters can be pressed, and the device is suitable for pressing various drum surfaces.

The invention relates to the technical field of pronunciation control, and provides a non-contact Hall drumhead vibration sensing and intelligent pronunciation control method and system, and the method comprises the steps: collecting an original Hall sensing electric signal generated when a user knocks a drumhead through a Hall sensor array in a drumhead, carrying out the signal preprocessing of the original Hall sensing electric signal, and obtaining a pre-processed signal; a standard Hall sensing electric signal is obtained, physical characteristic parameters are extracted, and a first tympanic membrane tension parameter, a damping coefficient and a striking position are obtained; obtaining an initial tympanic membrane tension parameter through a tympanic membrane stress sensor, carrying out the comparative analysis of the first tympanic membrane tension parameter and the initial tympanic membrane tension parameter, obtaining a tension decay value, and obtaining a pitch parameter based on a pre-constructed tension decay value-pitch mapping relation. According to the invention, through signal preprocessing and physical characteristic parameter extraction, key quantities reflecting the physical state of the tympanic membrane, such as a tympanic membrane tension parameter, a damping coefficient and a striking position, are systematically extracted, and a real and accurate physical basis is provided for sound generation.

To provide a drum head fastening device capable of easily mounting a drum head on the shell of a drum.SOLUTION: A drum head fastening device 5 comprises a plurality of lugs 50 each having a lug body 52 fixed to a shell 2 of a drum and a lug nut 53 fitted to the lug body 52; and a plurality of lug bolts threadedly engaging with the respective lug nuts 53. At least one of the lug nuts 53 is a fixed lug nut 53A fixed immovably to the lug body 52. At least another one of the nuts 53 is a movable lug nut fitted movably to the lug body 52.SELECTED DRAWING: Figure 3

A drum assembly that includes a circular frame member that defines a frame opening therein, an upper drum head member secured to the frame member and spanning the frame opening, a lower drum head member positioned below the upper drum head member, secured to the frame member and spanning the frame opening, and a threaded rod assembly extending between the upper drum head member and the lower drum head member. The threaded rod assembly includes an upper threaded member that is threadingly engaged with the upper drum head member. Rotation of the upper threaded member in a predetermined direction moves the upper drum head member away from the lower drum head member, such that tension is increased in the upper drum head member.

A drumstick positioning system and method, a device, and a medium. The system comprises: a data processing module (110), and an ultra-wideband positioning module (120) and an inertial measurement module (130) which are arranged in a drumstick. The ultra-wideband positioning module (120) is used for determining position information of the drumstick and sending the position information to the data processing module (110); the inertial measurement module (130) is used for determining kinematics information of the drumstick and sending the kinematics information to the data processing module (110); and the data processing module (110) is used for receiving the position information sent by the ultra-wideband positioning module (120) and the kinematics information sent by the inertial measurement module (130), and determining a target position of the drumstick on the basis of the position information and the kinematics information, so as to determine, on the basis of the target position, a target drumhead where the drumstick is located. The system solves the problem in the prior art that recognition errors are caused by mounting a sensor in a physical drumhead to sense strike direction and force for drumhead strike recognition, thereby improving drumstick positioning precision and achieving the effect of improving drumhead strike detection accuracy.

The present invention relates to the technical field of educational toys, and specifically relates to a children's interactive educational toy, which includes a main body, a dust-proof mechanism, an inflation mechanism, a wiping mechanism, an educational game mechanism I, and an educational game mechanism II. There is a glass at the upper end of the educational toy through which the things placed inside can be observed. There is a drum skin at the lower end of the toy that can be struck to cultivate children's music sense. There are game areas around the toy. By pulling the first sliding rod downward, the shielding cloth is driven to move downward to shield the educational game area to prevent it from being contaminated with dust and water stains. During the downward movement of the first sliding rod, the inclined slider is driven to move outward to squeeze the first airbag, so that the air inside the first airbag will enter the second airbag through the connecting pipe. The second airbag is filled with air and expands. The second airbag combined with the rubber layer can play a role in anti-collision. During the downward movement of the shielding cloth, the cleaning block is driven to move downward and will wipe the glass.

The present application relates to a drum, comprising: a drumhead, a drum bottom, a drum barrel, a force transmitter, and a sensor; the drum barrel is an annular structure, with the drumhead and drum bottom respectively fixed to the top and bottom of the drum barrel, and the drumhead, drum bottom, and drum barrel forming a drum cavity; the force transmitter and sensor are both located within the drum cavity; the force transmitter is a conical cylindrical structure, with the large end of the force transmitter abutting against the edge of the drumhead to prevent the force transmitter from being struck, and the small end of the force transmitter facing the sensor; the present application also includes: a support frame; the support frame is located within the drum cavity, the horizontal span of the support frame gradually increasing along the drum bottom, the top of the support frame is fixedly connected to the bottom of the force transmitter, and the bottom of the support frame is fixed to the drum bottom; the sensor is fixed to the force transmitter or the support frame; the present application also includes: a buffer ring; the buffer ring is fixedly located between the force transmitter and the drum barrel and affixed to the inner wall of the drum barrel; the buffer ring is made of silicone or rubber. The present application can output the correct force value.

The utility model discloses a drum leather pressing ring for a drum set. The drum leather pressing ring comprises a pressing ring body, a clamping hook and a screw rod, the pressing ring body sleeves the top end or the bottom end of the drum barrel, and a clamping groove is formed in the top surface, corresponding to the drum lug, of the pressing ring body; the top face of the clamping hook and the top end of the pressing ring body are located on the same plane, and a threaded hole is formed in the end, away from the clamping groove, of the clamping hook. And the screw rod penetrates through the threaded hole and is bolted with the drum lug. According to the utility model, the clamping groove is arranged on the pressing ring body, the clamping hook is clamped with the clamping groove, and the top surface of the clamping hook is flush with the top surface of the pressing ring body, so that the drum hammer cannot be damaged in a special playing stage, and the service life of the drum hammer is effectively ensured.

A drumstick strike detection system and method, a device, and a medium. The system comprises: a data processing module (110), and an ultra-wideband spatial positioning module (120) and a magnetometer (130) which are arranged in a drumstick, wherein the ultra-wideband spatial positioning module (120) is used for determining spatial position information of the drumstick; the magnetometer (130) is used for determining the heading angle of the drumstick; the data processing module (110) is used for determining a drumstick signal horizontal emission angle on the basis of the heading angle, determining, on the basis of the drumstick signal horizontal emission angle, whether the spatial position information satisfies a preset positioning condition, and determining, on the basis of the spatial position information satisfying the preset positioning condition, a target drumhead struck by the drumstick. The system solves the problem in the prior art of inaccurate identification caused when sensors are mounted in physical drumheads to sense strike directions and forces for struck drumhead identification, and achieves the effect of improving the accuracy of struck drumhead detection while ensuring the accuracy of the spatial position information of the drumstick.

The invention belongs to the field of musical instruments, and particularly relates to mute drum leather and a preparation method thereof. The silent drum leather comprises an original sound drum leather layer, and a striking surface of the original sound drum leather layer is provided with a concave-convex structure; the microcellular foaming energy absorption layer and the bottom surface of the acoustic drum skin layer are compounded and are self-bonded into a whole; wherein the microcellular foaming energy absorption layer is of a closed-cell microcellular structure and is used for absorbing vibration energy; the concave-convex structure of the striking surface is used for dispersing sound head energy during striking, and the concave-convex structure and the microcellular foaming energy absorption layer are in synergistic effect to jointly achieve noise reduction and keep the striking touch feeling. According to the mute drum leather, the concave-convex structure is arranged on the striking surface of the original sound drum leather layer to disperse sound head energy, and the thermoplastic polyurethane material microcellular foaming layer is integrally formed on the back surface of the original sound drum leather layer through in-mold foaming to efficiently absorb vibration, so that the striking noise is remarkably reduced, and meanwhile, the real striking touch sense and rebound response are completely reserved.

A drumhead fastening device is used for attaching a drumhead to an open end of a shell. The drumhead fastening device includes a plurality of lugs. Each of the plurality of lugs includes a lug main body fixed to the shell and a lug nut attached to the lug main body. The drumhead fastening device further includes a plurality of lug bolts corresponding to the plurality of lugs, respectively. Each of the plurality of lug bolts is screw coupled with the lug nut of the corresponding lug. At least one lug of the plurality of lugs includes a fixed lug nut fixed immovably to the lug main body. At least one lug of the plurality of lugs includes a movable lug nut movably attached to the lug main body.

The utility model discloses an African drum convenient for adjusting a high-upper drum surface, which belongs to the technical field of musical instruments and comprises a drum cavity, drum leather is nested at the position of a cavity opening of the drum cavity, a drum pressing ring is arranged on the periphery of the drum cavity, and the drum leather is fixed with the outer surface of the drum cavity through the drum pressing ring. A plurality of fixing seats are fixedly connected to the middle of the periphery of the drum cavity, adjusting screws are connected to the tops of the fixing seats in a threaded mode, hooks are movably arranged on the peripheries of the adjusting screws in a sleeving mode, the drum leather can be nested at the opening of the drum cavity, and the drum leather is firmly fixed through mutual cooperation of the drum pressing ring, the adjusting screws and the hooks. Meanwhile, the position of the adjusting screw is adjusted to control the tightness of the drum pressing ring, so that the tightness of the drum head of the drum skin is adjusted, the pitch of the African drum is quickly adjusted, and the problems that the pitch adjustment operation of a traditional African drum is tedious, the use is inconvenient and the intonation is poor are solved.

A drum-mounted furniture-grade speaker driver system comprising at least one drum shell, at least one drumhead, at least one speaker driver, and at least one reinforcement ring. The at least one drumhead is mounted in an opening of the drum shell. The at least one speaker driver is mounted in an opening in the at least one drumhead. The at least one reinforcement ring is sized to span an area between an interior perimeter of the opening in the at least one drumhead and an outer perimeter of the at least one speaker driver. The at least one speaker driver has at least one electronic speaker terminal thereon. A length of speaker wire electrically connects the at least one speaker driver to an amplifier and the amplifier to at least one terminal on an exterior surface of the at least one drum shell.

This percussion instrument aims to improve playability by suppressing changes in the feel of the drumhead caused by the drumhead material. [Solution] The percussion instrument comprises a cylindrical body 10 with an open end 11 on one side in the axial direction to which a head is attached, a rim sensor 3 for detecting a strike to the rim portion corresponding to the open end, a head sensor 4 for detecting a strike to the head, a support portion 20 positioned at a distance inside the body when viewed from the axial direction and at a distance on the other side in the axial direction relative to the head to which the head is attached to support the rim sensor, a plurality of connecting portions 30 extending from the support portion to the body and connecting the support portion and the body, and arranged at a distance in the circumferential direction D3 of the body, and a plurality of openings 50 opening to the other side in the axial direction between each adjacent connecting portion in the circumferential direction. The head sensor is attached to the connecting portion and contacts the head.

The utility model relates to the technical field of percussion instruments, and discloses a music rhythm percussion instrument which comprises a support, the top end of the support is fixedly connected with a bracket, the bracket is internally provided with a drum body, the inner wall of the drum body is fixedly connected with drum leather, and the drum body is internally provided with a volume adjusting mechanism. The volume adjusting mechanism comprises two fixing shells and two supporting plates, and the outer surface of each hand screw is fixedly connected with an auxiliary bearing. According to the music rhythm percussion instrument, through mutual cooperation of the support, the bracket, the drum body, the drum leather, the fixing shell, the supporting block, the hand-screwing screw rod, the top disc, the auxiliary bearing, the non-slip mat, the supporting plate, the fixing cylinder, the sliding rod, the soft bristle plate, the damper and the back-jacking spring, the drum body with the drum leather can be supported by the support and the bracket, so that the hand-screwing screw rod can be conveniently screwed; and under the assistance of the auxiliary bearing, the supporting block can be gradually jacked up in the fixed shell by the jacking disc and the non-slip mat, and the soft bristle plate is gradually close to the drum leather until being gradually clung to the bottom surface of the drum leather.

The invention relates to the field of electronic drums, in particular to an electronic drum signal transduction structure. When the drumhead with the structure is knocked, the bottom surface of the conduction sponge is larger than or equal to the top surface of the buzzing assembly, so that the deformation of the drumhead can be uniformly conducted to the buzzing assembly, the buzzing assembly is of a sheet-shaped strip structure, and meanwhile, the center of the bottom surface of the sheet-shaped strip structure is propped against the top surface of the supporting sponge; therefore, the buzzing assembly and the supporting sponge form a'seesaw 'structure with the supporting sponge as a middle supporting point, the two ends of the long strip of the buzzing assembly are stressed downwards, the middle of the long strip of the buzzing assembly is connected with the supporting sponge in an abutting mode, the buzzing assembly can stably deform in a bow shape, the problem of double sounds caused by uneven deformation is avoided, meanwhile, the'seesaw' structure is prone to deformation, and therefore the buzzing assembly can stably deform in a bow shape. The problem of sound loss is avoided; the signal transduction structure can be adapted to buzzing pieces with various sensitivities, and the problem of double sounds or sound loss does not occur.

The invention relates to a pitch and timbre control cover for a drum, comprising a drumhead cover and a support on which the drumhead cover is stretched, wherein the drumhead cover has a first surface and a second surface, the first surface being designed to rest on a drumhead of the drum. The object of the invention is to provide a pitch and timbre control cover that overcomes the disadvantages of the prior art. In particular, the pitch and timbre control cover should function without covering the drumhead of the batter side. This object is achieved by the fact that the pitch and timbre control cover has at least one magnet, and this magnet is in contact with a magnetic section of a tension hoop of the drum that stretches the drumhead.

Drum pedal systems and methods are disclosed herein. Exemplary drum pedal assemblies include a footplate, a hoop clamp disposed at an anterior portion of the footplate, a footboard coupled with the footplate, a drive mechanism in operative association with the footplate and the footboard, and a beater. The lower portion of the beater is coupled with the anterior portion of the footplate via a fixed anterior hinge mechanism that is aligned toward the bottom or lower section of the drumhead.

The application discloses a production and processing device for a flower drum and relates to the technical field of flower drum production and processing. The device comprises a base, a positioning rotating structure, an extension part one, a placing plate, a tensioning structure, a pressing ring, a cutting structure and an extension part two. Two supporting rods are symmetrically fixed on the upper end of the base, and a top plate is fixed on the upper end of the two supporting rods. The positioning rotating structure is arranged on the base and is used for center positioning of a drum body and rotating the drum body after positioning. The tensioning structure can uniformly pull the edge of the drum skin in the direction away from the center port through cooperation of the upper wedge block and the lower wedge block and elastic action of the return spring, so that the drum skin is evenly and tightly covered on the upper end of the drum body. The pressing ring is driven by the extension part two to move downward, further fixes the drum skin and prevents movement or deformation in the subsequent cutting process, so that the tensioning quality and consistency of the drum skin are remarkably improved.

On the support portion 20 of the frame 2, a plurality of hexagonal recesses 20a and through holes 20b are formed, arranged so that their edges are adjacent to each other. This allows a portion of the vibration (sound) from when the drumhead 4 is struck to be released to the outside through the through holes 20b, thus suppressing the echo of the vibration within the frame 2. Furthermore, the rigidity of the support portion 20 (frame 2) can be effectively improved by the bottom wall 20c of the recesses 20a or the side wall 20d dividing the recesses 20a and the through holes 20b. Therefore, the rigidity of the frame 2 can be increased while reducing the volume when the drumhead 4 is struck.

The invention relates to a drumhead vibration conduction piece, a drumhead assembly and an electronic mute drum. The drumhead vibration conduction piece comprises a conduction piece main body and a division baffle ring, the conduction piece main body comprises a variable-caliber ring body and a back cover; the sealing bottom is arranged at the small-diameter end of the variable-caliber ring body; n division baffle rings are arranged at intervals in the direction from the center to the edge of the conduction piece main body, and the n division baffle rings are respectively arranged at positions used for equally dividing the drum surface in the radial direction; the n division baffle rings are used for dividing the hollow part of the conduction piece main body into n + 1 knocking induction cavities; along the axial direction of the conduction piece main body, the upper end of each division baffle ring and the opening at the upper end of the conduction piece main body have the same interval. An airflow through hole is formed in the wall surface, corresponding to part of the knocking induction cavity, of the conduction piece main body. According to the scheme, accurate segmentation of the knocking position of the drumhead can be achieved through the designed drumhead vibration conduction piece, and the problem that in the prior art, the knocking force and the knocking position cannot be accurately obtained is solved.

The utility model provides an electronic drum, and relates to the technical field of musical instruments. Comprising a drum surface and a hollow drum body, a cover plate of the drumhead is divided into a sounding area and a playing area, the peripheral side of the drumhead is provided with a frame, and the drumhead is internally provided with a circuit board, and a loudspeaker and a vibration sensor which are electrically connected with the circuit board; the loudspeaker is arranged at the position of the sound production area; the playing area comprises an edge playing area and a central playing area, and the edge playing area and the central playing area are correspondingly provided with vibration sensors; the edge playing area and the sounding area are arranged around the peripheral edge of the central playing area; the drum body is connected with the frame; the circuit board is also provided with a power interface; the power interface is exposed out of the side surface of the frame. The drum surface is provided with a plurality of vibration sensors, the power interface is added, and the hollow drum body is adopted, so that the defects of the existing electronic drum in the aspects of tone, functionality and low-frequency performance are effectively overcome, and the overall performance and user experience of the electronic drum are improved.

A wall portion 82 of a wall shape rising from the fixed portion 80 of the mounting member 8 is arranged around the drum sensor 3. Since the wall portion 82 protrudes higher than the cylinder portion 22 to contact the drum 4 (push up the drum 4), the tension of the drum 4 around the drum sensor 3 can be increased. Thus, even in the case where the drum sensor 3 is arranged at an eccentric position on the outer peripheral side of the drum 4, the vibration at the time of striking the drum 4 is easily detected by the drum sensor 3. Therefore, the striking of the drum 4 can be detected with good accuracy.

The utility model provides an electronic bottom drum, which comprises a support, an electronic drum body and a drumstick assembly, wherein the electronic drum body and the drumstick assembly are arranged on the support; the drumstick assembly is used for knocking the electronic drum body; the electronic drum body comprises a drum barrel, a drum surface and a drum bottom, the drum surface and the drum bottom are connected to two end faces of the drum barrel, a sensor and an elastic transmission layer are arranged in the drum barrel, the sensor is connected to the drum bottom, and two ends of the elastic transmission layer are attached to the drum surface and the sensor respectively and used for transmitting vibration of the drum surface to the sensor. When the drumstick assembly knocks the drumhead, vibration received by the drumhead can be transmitted to the sensor through the elastic transmission layer, accurate transmission of vibration signals is guaranteed, meanwhile, the sensor can be prevented from being directly impacted by the drumstick assembly, the sensor is prevented from being damaged, and therefore the service life of the product is prolonged.

The drum comprises a drum cavity, drum leather and a supporting ring, the supporting ring is placed on the end face of the drum cavity, the drum leather wraps the supporting ring and then is fixed to the outer surface of the drum cavity, a plurality of tuning devices are evenly distributed in the circumferential direction of the drum cavity, and each tuning device comprises a hinge, a pull rod and an adjusting bolt. The lower half body of the hinge is fixed on the inner wall surface of the drum cavity, and the upper half body is fixedly provided with a lower sliding sleeve; a wedge block is arranged at the upper end of the pull rod, the tip of the wedge block is inserted between the supporting ring and the end face of the drum cavity, the lower end of the pull rod is slidably arranged in the lower sliding sleeve, and a threaded hole is formed in the pull rod; the inner end of the adjusting bolt is inserted into the threaded hole in a running fit mode, an adjusting hole is formed in the side wall of the drum cavity, and the outer end of the adjusting bolt penetrates out of the adjusting hole. According to the invention, the tightening or loosening of the drum leather is adjusted through the combination of the spiral structure and the wedge block structure, the structure is simple, the use is convenient, and the manufacturing cost is low.

The utility model relates to an electronic bottom drum with an atmosphere lamp effect, which comprises a drum seat, a drum surface and a drum ring cover, a vibration sensor and a circuit board connected with the vibration sensor are arranged in the drum seat, the drum surface is aligned with the vibration sensor, the electronic bottom drum further comprises an annular lamp panel, a light blocking ring and a light guide ring, a supporting plate is arranged in the light blocking ring and abuts against the vibration sensor, and the light guide ring is arranged in the annular lamp panel. The drum surface covers the front side of the light blocking ring, the light guide ring sleeves the outer side of the light blocking ring, the light guide ring and the light blocking ring define a lamp cavity, the annular lamp panel is placed in the lamp cavity and is connected with the circuit board, and the drum ring cover sleeves the outer side of the light guide ring and is connected with the drum seat. The electronic bottom drum is provided with the LED lamp, the circuit board sends an instruction to the LED lamp to enable the LED lamp to be bright or dark, so that a drummer can recognize whether the drumhead is effectively hit or not, and the electronic bottom drum is quite convenient to use; the light blocking ring is sleeved with the shock absorption layer, the annular lamp panel is tightly arranged on the outer side of the shock absorption layer in a sleeving mode, the LED lamps on the annular lamp panel are not prone to being affected by striking and vibration of the drumstick, and the service life of the LED lamps is long.