93results about "Recording heads arrangements" patented technology

To implement stable sound playback with high sound quality, a record player for playing back sound recorded on a phonograph record includes a rotator that rotates the phonograph record, a container arranged on a side of the rotator and capable of storing one of a liquid, powder, and gel, a float to be floated on the one of the liquid, the powder, and the gel stored, in a standstill state, in the container, an arm extended from the float in a direction of the rotator, and a phono cartridge attached to the arm and including a sound playback stylus.

A uniquely pivotable tonearm stabilized by magnetic fields to achieve superior fidelity during playback, is disclosed. The tonearm comprises a tonearm and an arm wand suspended using two or more torsional elements. A top nut assembly is positioned over a top chassis. The top nut assembly is rotated to provide anti-skating force by rotating counter clockwise. The torsional elements are suspended from the top nut assembly and mounted to the arm wand body as an inverted V configuration. The tonearm further comprises two or more magnets including a ring magnet mounted on a lower chassis body and a pair of cylindrical magnets mounted in the arm wand body. Further, a counterweight is mounted on an end of the arm wand and configured to provide the necessary down-force to balance a cartridge and arm wand during operation, thereby providing improved stability with significant improvement in sound quality.

A tone arm for a record player is provided. The tone arm comprises an anterior arm section adapted for mounting a pickup cartridge thereto, an posterior arm section adapted for mounting to the record player, and a mounting component comprising a plurality of discrete contact surfaces that adapted for abutting one of i) anterior arm section and ii) the posterior arm section, and preferably discrete contact surfaces for each of the anterior arm section and the posterior arm section. Whereby, the mounting component is adapted to secure the anterior arm section and the posterior arm section to each other. Therefore, through the present document is described the mounting component, the tone arm, and a method of making the latter with the mounting component.

The utility model provides a phonograph structure capable of adapting to discs with different sizes, which comprises a disc, a control structure, a singing rod arranged on the control structure, a driving structure arranged on the back of the control structure and used for driving the singing rod to swing, and a first separation blade and a second separation blade linked with the singing rod, the optical coupler is matched with the first blocking piece and the second blocking piece, the optical coupler is provided with an induction channel, the first blocking piece or the second blocking piece can enter the induction channel when the singing rod moves, when the first blocking piece is located in the induction channel, the singing rod is in a reset falling static state, and when the second blocking piece is located in the induction channel, the singing rod is in a reset falling static state. And when the singing rod is in a playing ending state, the phonograph structure also comprises an adjusting structure for adjusting the distance between the first separation blade and the second separation blade. According to the utility model, the start and stop of the phonograph can be controlled through the single optocoupler, and the phonograph can be compatible with discs of different sizes.

The invention discloses a disc player capable of automatically controlling a lifting arm and a rotating arm to move and a control method, and belongs to the technical field of vinyl disc players. The disc player comprises a singing arm, a singing arm lifting part used for controlling lifting of the singing arm, a singing arm rotating part used for controlling rotation of the singing arm, and an induction control part used for cooperative control according to the position of the singing arm. Wherein the tone arm lifting part realizes stable lifting of a tone arm through a first rotating power part, a screw rod and a sliding block with a z-shaped sliding groove; the singing arm rotating part drives the singing arm to accurately rotate through a second rotating power part and a turbine worm mechanism; the sensing control part accurately detects the position of the tone arm through a sensing arm synchronously rotating with the tone arm and U-shaped sensing blocks arranged at standby, starting and ending positions. The whole process of singing arm moving, needle falling, playing, arm lifting and returning can be automatically completed, operation is easy and convenient, equipment damage caused by improper manual operation can be effectively avoided, and use convenience and equipment reliability are improved.

The utility model belongs to the technical field of phonograph, and discloses a portable phonograph which comprises a storage box, a fixing plate and a phonograph body, a side box door is hinged to one side of the storage box, a sliding plate is horizontally arranged at the bottom of the storage box in a sliding mode, three placing frames are vertically arranged on the sliding plate at intervals, lifting assemblies are arranged on the two sides of the sliding plate, and the side box door is hinged to the fixing plate. The lifting assembly comprises mounting strips, strip-shaped holes and a driving unit, a hinge shaft is rotationally arranged on the mounting strip in the middle, two rockers are rotationally arranged on the hinge shaft, first clamping shafts are rotationally arranged at the upper ends of the rockers and slidably arranged in the strip-shaped holes in the upper side, and second clamping shafts are rotationally arranged at the lower ends of the rockers and slidably arranged in the strip-shaped holes in the lower side. The second clamping shaft is arranged in the strip-shaped hole in the lower side in a sliding mode. The driving unit drives the two second clamping shafts to slide inwards, so that the two rocking bars rotate relative to the hinged shaft, the placing frames on the upper side and the middle are lifted, the distance between the music films is large, the covers of the music films are directly observed, and the time for personnel to find the needed music films is shortened.

The utility model discloses a gramophone-shaped CD (compact disc) disc player, which comprises a base station, a CD movement assembly arranged on the base station, a trumpet-flower-shaped loudspeaker positioned on one side of the base station and a singing arm type structure, the singing arm type structure is positioned on the outer side of the CD movement assembly, and the loudspeaker extends upwards to the upper part of the base station. According to the utility model, the singing arm structure and the trumpet-shaped loudspeaker are combined on the CD player, and the appearance of a gramophone is reengraved, so that the appearance requirement is met. The singing arm type structure is designed to be a control switch used for controlling the CD movement assembly, and the control switch comprises a control knob and a rocker arm connected to the control knob. A user drives the control knob to rotate by moving the rocker arm so as to control on and off of the CD movement assembly. According to the utility model, the singing arm structure is combined on the CD player as a control switch, so that the appearance requirement is met, and the practical function application is met.

The utility model discloses an automatic swing arm type disc player. The automatic swing arm type disc player comprises a main shell; the first shell and the main shell are assembled, the side, away from the main shell, of the first shell is provided with a tone arm, the first end of the tone arm and the first shell are connected with a transmission assembly arranged in an internal containing space of the main shell, and the tone arm is arranged in the direction parallel to the first shell so that the second end of the tone arm can extend out of the top of the main shell; the disc is arranged on the side, away from the main shell, of the first shell, is parallel to the first opening and is fixedly connected with the transmission assembly, and the transmission assembly controls the singing arm to rotate and / or ascend and descend based on a control signal output by the processor in signal connection so as to adjust the position of the second end of the singing arm on the disc. According to the invention, the horizontally placed disc is changed into the vertically placed disc, the occupied area of the disc player is reduced, and the transmission assembly is utilized to drive the singing arm to move based on the control signal output by the processor, so that automatic adjustment of the singing arm is completed.

The invention belongs to the field of record preparation, and particularly relates to a composition for a vinyl record, a preparation method of the composition and the vinyl record. The composition for the vinyl record is prepared from the following components in parts by weight: 45 to 55 parts of vinyl chloride-vinyl acetate copolymer, 35 to 45 parts of polyvinyl chloride, 2 to 4 parts of plasticizer, 1 to 3 parts of flexibilizer, 0.3 to 1 part of heat stabilizer, 0.5 to 1 part of filler and 0.2 to 0.6 part of lubricant. The invention also discloses a preparation method of the composition. The preparation method comprises the steps of mixing, melting and plasticizing, pelletizing and post-processing. By adopting a double-resin composite system, the balance of rigidity and toughness of the material is effectively realized, so that the prepared vinyl record has excellent physical properties, high-fidelity tone quality and long service life.

The utility model discloses a phonograph with a stable phonograph driving mechanism, which comprises a phonograph box, the left side of the top of the phonograph box is provided with an annular groove, the center of the bottom of the annular groove is fixedly connected with a driving motor, the output end of the top of the driving motor is fixedly connected with a clamping head, the top end of the clamping head is in butt joint with a disc, and the top end of the clamping head is in butt joint with the disc. A hexagonal clamping shaft is fixedly connected to the outer side of the middle of the clamping head, a lifting table is arranged on the outer side of the hexagonal clamping shaft in an up-down sliding fit mode, a lifting base is erected under the lifting table, the top output end of the lifting base is fixedly connected with the lifting table, and the top face of the lifting table makes contact with the bottom face of a record in an attached mode. The hexagonal clamping shaft is connected below the clamping head of the driving motor in a sleeving mode and rotates with the lifting table in an embedded mode, the lifting table is controlled to slide up and down along the outer side of the hexagonal clamping shaft in cooperation with the lifting base, the top face of the lifting table can be attached to the bottom face of the record for comprehensive supporting and limiting, the stress strength of the clamping head is reduced, and stability of the record during long-term operation is guaranteed.

This application provides a code generation method, apparatus, electronic device, and storage medium. The method includes obtaining a code file containing message body definition rules; obtaining an abstract syntax tree (AST) of the code file; and generating encoding / decoding code for the communication message body corresponding to a target programming language based on the AST. Therefore, this method can generate encoding / decoding code for the communication message body corresponding to a target programming language using the AST obtained from the code file containing the message body definition rules, overcoming the problem of wasted human resources caused by manually writing this encoding / decoding code.

A tone arm system comprising a hemispherical air bearing in a. pivoted tone arm operable on all axes so as to provide a virtually frictionless bearing operative on the tone arm, thereby enabling a stylus and cartridge that converts vibrations in the record groove to electrical signals, to transmit the signals without unwanted bearing noises impacting upon the sound quality of the transmission.

The utility model relates to the technical field of phonograph, in particular to a vinyl record device. The vinyl record device comprises a box body and a base arranged on the box body, a preset distance exists between the base and the box body, a singing arm module is arranged on the base, a circuit board is arranged in the box body, the singing arm module is connected with a first wire, the first wire penetrates through the base and extends into the box body, and the circuit board is connected with the base. And the singing arm module is connected with the circuit board through the first lead. By adopting the above mode, the direct rigid connection between the tone arm module and the box body can be avoided, the tone quality of the vinyl record device can be improved, and the use cost of a user can be reduced.

The utility model discloses a singing arm with lifting and slow playing functions, which comprises a singing arm seat and a singing arm body arranged on the singing arm seat, and further comprises a singing arm frame for supporting the initial position of the singing arm body, a lifting part used for lifting the singing arm body and a controller used for controlling the lifting amplitude of the lifting part are arranged on the singing arm seat, and the controller is used for controlling the lifting amplitude of the lifting part. According to the utility model, the lifting part can be lifted through the controller, the controller can be reset after the tone arm is moved to the upper part of the vinyl record, and the elastic device is enabled to buffer the natural descending force of the tone arm, so that the tone arm is prevented from falling off, and the tone arm is prevented from falling off. Therefore, the stable placing process is realized, and the damage to the record and the singing head is avoided.

Automatic tonearm lifting device for use with a tonearm (92) of a turntable (9), comprising: a base seat (1) that can be mounted on the turntable (9); a drive mechanism (2) comprising a stepper motor (21) mounted on the base seat (1) and an eccentric cam assembly (22) coupled to the stepper motor (21) to be rotated by the stepper motor (21) about an axis (M) in a predetermined angular range; and an arm lifting mechanism (3) which is movably attached to the eccentric cam arrangement (22), wherein during the rotation of the eccentric cam arrangement (22) the arm lifting mechanism (3) is moved in an up-down direction relative to the base seat (1) between a raised position and a lowered position, wherein the raised position is higher than the lowered position, wherein the arm lifting mechanism (3) supports and carries the tonearm (92) when the arm lifting mechanism (3) is in the raised position.

The utility model relates to the technical field of record players, in particular to a rotary positioning and adjusting type singing arm mechanism of a record player, which comprises a support frame, a singing arm body movably arranged on the support frame and a singing arm shaft rotatably arranged on the support frame, the singing arm shaft is used for driving the singing arm body to rotate, a first positioning block is further movably arranged on the support frame, and a second positioning block is further movably arranged on the support frame. One end of the singing arm shaft is coaxially connected with a first positioning block, the other end of the singing arm shaft is connected with the singing arm body, one side of the first positioning block is movably connected with a second positioning block, a position adjusting assembly is arranged between the first positioning block and the second positioning block, and the second positioning block is further provided with an induction column. The supporting frame is provided with a plurality of position sensors arranged at intervals. The position sensor is novel in structure, the relative position between the first positioning block and the second positioning block can be adjusted through the position adjusting assembly, so that the position matching relation between the sensing shaft and the position sensor is more accurate, the sensing precision is improved, and the structure is reliable.

Device (1) for mounting a tonearm (2), in particular a tonearm (2) of a record player, with - a first component (3) and - a tonearm support body (4) which is rotatably mounted about a first axis (6), in particular a vertical axis, and pivotably mounted about a second axis (7), in particular a horizontal axis, relative to the first component (3) via a bearing device (5), wherein at least a first magnetic means (8) are arranged or formed on the tonearm support body (4) and at least a second magnetic means (9) are arranged or formed on the first component (3), wherein the first magnetic means (8) and the second magnetic means (9) interact with each other via a magnetically attractive and / or repulsive magnetic force.

The utility model discloses a foldable phonograph which comprises a folding box body, a top layer box and a bottom layer box, a box cover is rotatably arranged at the top end of the folding box body, a connecting block is rotatably connected to one end of the box cover in a limiting mode, a clamping groove is formed in the side wall of the connecting block, and a connecting base is arranged on the side wall of the top end of the folding box body. A connecting groove is formed in the surface of the connecting base, mounting grooves communicating with the connecting groove are formed in the two sides of the connecting base, connecting rods are movably arranged in the two mounting grooves, and clamping blocks connected with clamping grooves formed in the side walls of connecting blocks in a clamped mode are arranged at the ends, close to each other, of the two connecting rods; springs are connected to the outer sides of the connecting rods and located between the clamping blocks and the connecting bases in a sleeving mode, the ends, away from each other, of the two connecting rods are each connected with a shifting block, and the box cover covering the top end of the folding box body can be stably limited and fixed through the arrangement of the structure, so that the closed box cover is opened due to collision; therefore, articles in the folding box body fall off.

SOLUTION: A liquid floating tone arm device for reading a record on a turntable includes a base 10, a liquid tank 20 provided on the base and located above the record, the liquid tank 20 extending along a linear direction and forming an accommodating space for accommodating a working fluid therein, and a cartridge assembly 30 floating in the liquid tank through a floating block, wherein a reading portion 32 and a counterweight portion 33 of the cartridge assembly are respectively located on two sides of the liquid tank. The audio track of the record is read by the contact of the record needle mounted on the reading portion, and as the record needle moves from the outer ring to the inner ring of the record, the cartridge assembly is driven to float in the liquid tank and move along a linear direction and can move freely.EFFECT: The contact angle between the record needle and the audio track can be held in parallel, and the audio signal can be read more appropriately.SELECTED DRAWING: Figure 1

An electric rotating arm vinyl disc player with a manual adjustment function comprises a controller, a disc assembly and a singing arm assembly which are arranged on a machine table, and the singing arm assembly comprises a singing arm, a U-shaped singing arm seat and a singing arm shaft; the independent auxiliary lifting singing arm mechanism and the flexible connection type rotating singing arm mechanism are arranged on the machine table, are in signal connection with the controller, and comprise a lifting rod and a translation lifting rod device; the width of a top cross rod part arranged at the upper part of the lifting rod in the horizontal and vertical direction of the singing arm is greater than the maximum swing distance of the singing arm rotating from a parking position to a playing finishing position; the lower end part of the lifting rod is in contact with the translation lifting rod lifting device in an abutting manner so as to lift the singing arm; a singing arm shaft extending out of the U-shaped singing arm seat penetrates through the singing arm shaft guide hole and is connected with the flexible connection type rotating singing arm mechanism, so that the singing arm can swing left and right around the singing arm shaft under the flexible connection type rotating singing arm mechanism or manual operation. The disc player not only has an automatic playing function of the electric rotating singing arm, but also can manually adjust the singing arm at any time.

The present invention relates to the technical field of record players, and in particular, to a record player with repeatable playback, including a fixing base; and a tone arm body, a tone arm shaft, a circuit control assembly, a lifting and sliding mechanism, and a horizontal swinging mechanism that are disposed on the fixing base respectively. An upper end of the tone arm shaft is connected to one end of the tone arm body, and the tone arm shaft is rotatably disposed on the fixing base. The circuit control assembly includes a support frame; and a control circuit board, an encoder component, a rotating arm positioning component, and an induction gear that are disposed on the support frame. A gear transmission structure is disposed on one side, close to the gear, of the rotating arm positioning component.

The utility model relates to a phonograph, and discloses a precision fine tuning singing arm phonograph, comprising a placing box, the inner wall of the placing box is fixedly connected with a box body, the top outer wall of the box body is rotatably connected with a singing arm, the top outer wall of the box body is provided with an adjusting mechanism, the adjusting mechanism comprises a fixing plate, and the fixing plate is fixedly connected with the box body. The bottom of the fixing plate is fixedly connected to the outer wall of the top of the tone arm, the top of the fixing plate is fixedly connected with a supporting rod, the top end of the supporting rod is fixedly connected with a sliding rail, the outer wall of the sliding rail is slidably connected with a sliding block, and the inner wall of the sliding block is slidably connected with a limiting plate. According to the utility model, by rotating the elliptical wheel, the projection of the elliptical wheel extrudes the limiting plate and drives the sliding block to slide on the sliding rail, so that the horizontal position of the singing arm is changed, the playing requirements of different records can be met, and after adjustment is completed, the magnetic attraction block and the magnetic attraction groove attract and fix the singing arm to prevent the singing arm from moving due to vibration during playing.

The utility model relates to the technical field of record players, in particular to a record player. The disc player comprises a shell, a first partition plate and a second partition plate, the first partition plate and the second partition plate are arranged in a T shape in the shell, a top plate is arranged on the first partition plate and the second partition plate, so that a functional cavity and two sound cavities are formed in the shell, a circuit board is arranged in the functional cavity, a sound production unit is arranged in each sound cavity, and the sound production units are connected with the circuit board. The top plate is provided with a supporting plate, the supporting plate is provided with a singing arm assembly and a disc assembly which are matched with each other, the supporting plate is connected with the top plate through a plurality of vibration reduction assemblies, part of the vibration reduction assemblies correspond to the function cavities, and part of the vibration reduction assemblies correspond to the sound cavities. By adopting the above mode, the tone quality of the disc player can be improved.

The utility model relates to the technical field of record players, in particular to a singing arm module and a vinyl record device. The singing arm module comprises an adjusting base and an integrated singing arm rotationally connected with the adjusting base, the bottom of the singing arm is provided with an open containing groove, one end of the singing arm is provided with a stylus module, the other end of the singing arm is provided with a balancing weight, the stylus module is connected with a wire, and the wire is arranged along the containing groove. By adopting the mode, the arrangement form can be simplified, the assembling convenience is improved, the production efficiency is further improved, and the production cost is reduced.

The utility model belongs to the technical field of audio and video equipment, and particularly relates to an automatic arm-lifting and arm-rotating movement mechanism of a vinyl record player, which comprises a first driving piece, a horizontal push rod, an arm-lifting assembly, a shaft sleeve, a second driving piece and an optocoupler rotating plate, the horizontal push rod is used for pushing the lifting arm assembly and the shaft sleeve to move upwards, the lifting arm assembly is used for pushing the singing arm to be lifted upwards, the shaft sleeve is used for pushing the second driving part to be connected with the optocoupler rotating plate, the optocoupler rotating plate is connected with the singing arm, and the second driving part is used for driving the optocoupler rotating plate to rotate. The first driving part drives the lifting arm assembly through the horizontal push rod to drive the singing arm to be lifted, the second driving part is connected with the optocoupler rotating plate through the shaft sleeve, the optocoupler rotating plate and the singing arm are driven by the second driving part to rotate, automatic starting and stopping of the vinyl disc player are facilitated, remote control by a user is facilitated, and the user experience is improved. And the use is relatively convenient.

A tonearm including an elongate member, a suspension means, a protrusion and a contact surface. The suspension means suspends the elongate member (8a; 8b; 8c; 8d; 8e) in an approximately horizontal position. The weight of the elongate member is substantially supported by the suspension means. The protrusion is arranged in opposing contact with the contact surface at a contact point, such that action of a drag force substantially parallel to the length of the elongate member urges the contact surface and the protrusion into opposing contact, thereby producing a contact force which resists the drag force. By separating the means for supporting the weight of the elongate member and the means for resisting a drag force acting along the length of the elongate member, the drag force can be more effectively resisted thus providing a tonearm with improved properties.

The utility model discloses a universal type vinyl record player disc assembly, which belongs to the technical field of vinyl record players, and comprises a base, a protective structure is sleeved on the inner side wall of the base, the protective structure comprises a protective layer, the protective layer is sleeved on the inner side wall of the base, a wear-resistant pad is arranged at the center of the lower end surface of the base, and the wear-resistant pad is arranged on the inner side wall of the base. A wear-resistant layer is arranged at the center of the lower inner wall of the base, a balancing weight is arranged in the base on the inner side wall of the protective layer in a sleeved mode, a sealing plate is arranged at the center of the upper end face of the balancing weight, and a disc structure is arranged on the inner side wall of the sealing plate in a sleeved mode. The first gear and the adjusting rod in the sliding channel are driven to move, the position of the adaptive ring on the adjusting rod can be adjusted according to different record specifications, the disc assembly can adapt to placement and playing of records of different sizes or types, the universality and applicability of the disc assembly are enhanced, and diversified requirements of users are met.

Device (1) for mounting a tonearm (2), in particular a tonearm (2) of a record player, comprising - a first component (3) and - a tonearm support body (4), which is rotatably mounted about a first axis (6), in particular a vertical axis, and pivotably mounted about a second axis (7), in particular a horizontal axis, relative to the first component (3) via a mounting device (5), wherein at least a first magnetic means (8) are arranged or formed on the tonearm support body (4) and at least a second magnetic means (9) are arranged or formed on the first component (3), wherein the first magnetic means (8) and the second magnetic means (9) interact with each other via a magnetically attractive and / or repulsive magnetic force.

A cradle 100A serving as a contact operation device includes: an arm 111 including a contact operation portion 114 at a tip end thereof, the contact operation portion 114 being configured to contact a touchscreen 205; and a support part 120 configured to support the arm 111 and including a first support mechanism configured to allow the arm 111 to move such that the contact operation portion 114 is carried in a horizontal direction, and a second support mechanism configured to allow the arm 111 to move such that the contact operation portion 114 is carried in a vertical direction.

A phonographic tonearm apparatus including a single filament mechanism for dynamically adjusting the azimuth of the cartridge stylus in real-time during playback of vinyl phonographic records while keeping the tonearm's pivot point in a fixed frictionless position. The tonearm's fixed pivot point provides a rigid and stable position for improved vertical and horizontal tracking performance while allowing for dynamic azimuth adjustment to optimize maximum signal separation of stereo audio channels. The azimuth control apparatus and mechanism also incorporates an integral anti-skate control mechanism that provides dynamic adjustment in real-time during playback of vinyl phonographic records.