Telephonograph structure capable of adapting to discs of different sizes

Abstract

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.

Description

Technical Field

[0001] This utility model relates to the field of record player structure, specifically to a record player structure that can adapt to discs of different sizes. Background Technology

[0002] A phonograph, also known as a record player, is a sound playback device that stores sound in arc-shaped grooves etched on the surface of a disc. The disc is placed on a turntable, and the stylus at the end of the record arm interacts with the turntable. The tip of the stylus vibrates slightly as the arc-shaped grooves undulate, and the vibration signal is transmitted to the resonant diaphragm, reproducing the sound wave pressure, turning it into sound, and then amplified and played through a speaker.

[0003] Existing record player structures typically use two optocouplers, one for indicating the start position of the record lever and the other for indicating the end position of playback. The two optocouplers increase hardware costs to some extent. Patent CN 107665715A proposes a structure implemented with optocouplers, but this structure is not compatible with other sizes of discs. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a record player structure that can adapt to discs of different sizes.

[0005] This utility model relates to a turntable structure adaptable to different sized discs, including a turntable, a control structure, and a tonearm mounted on the control structure. The turntable structure also includes a drive structure mounted on the back of the control structure to drive the tonearm to swing, a first and second baffle plate linked to the tonearm, and an optocoupler cooperating with the first and second baffle plates. The optocoupler has a sensing channel, and the first or second baffle plate can enter the sensing channel when the tonearm moves. When the first baffle plate is located in the sensing channel, the tonearm is in a stationary state of returning to its lowered position. When the second baffle plate is located in the sensing channel, the tonearm is in a playback-end state. The turntable structure also includes an adjustment structure for adjusting the distance between the first and second baffle plates.

[0006] Furthermore, it also includes a return baffle disposed on the control structure to prevent the tonearm from moving away from the turntable. When the tonearm is in the stationary state of the return lever, it is in contact with the return baffle.

[0007] Furthermore, the adjustment structure includes a control plate disposed on the back of the control structure and a rotating disk disposed on one side of the control plate. The rotating disk is sleeved on the drive shaft of the tonearm. The optocoupler is disposed on the control plate. The rotating disk has a first extension foot extending toward the optocoupler. A first baffle is disposed at the end of the first extension foot.

[0008] Furthermore, the adjustment structure includes an adjustment seat and an adjustment screw disposed on the rotating disk. The adjustment seat is provided with a screw hole that cooperates with the adjustment screw. A second extension foot extending toward the optocoupler is hinged on the rotating disk. A second baffle is disposed at the end of the second extension foot. The adjustment screw can adjust the hinge angle of the second extension foot relative to the rotating disk, thereby adjusting the distance between the second baffle and the first baffle.

[0009] Furthermore, the phonograph structure is also provided with an indicator structure for indicating the moving position of the second baffle.

[0010] Furthermore, the indicating structure is a rotating disk disposed on the rotating disk, and the rotating disk is provided with rotation marks corresponding to different disk sizes.

[0011] Furthermore, the indicating structure consists of grooves arranged sequentially along the length of the adjusting screw.

[0012] Furthermore, the adjustment structure also includes a motor mounted on a rotating disk that drives the adjustment screw to rotate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: playback can be started and stopped with a single optocoupler, simplifying the control of the record player and effectively reducing the hardware and software costs of electronic components; by setting an adjustment structure, it can be adjusted for different sizes of discs, thus making it compatible with different sizes of discs. Attached Figure Description

[0014] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 and Figure 2 This is a schematic diagram of the record player structure of this utility model with the record arm in the starting position.

[0016] Figure 3 for Figure 2 Enlarged view of a specific area;

[0017] Figure 4 This is a schematic diagram of the structure of the tonearm of this utility model when it enters the record position;

[0018] Figure 5 This is a schematic diagram of the structure of this utility model when playback has ended. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0020] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figures 1-3 As shown, this utility model relates to a record player structure adaptable to different sized discs, including a turntable 1, a control structure 6, and a tonearm 2 mounted on the control structure 6. The tonearm 2 has a stylus 3 at its end that works with the disc to play sound. The control structure includes a control base. On the back of the control base, there is a drive structure (not shown) for driving the tonearm 2 to swing, a first baffle 8 and a second baffle 13 linked to the tonearm 2, and an optocoupler 10 cooperating with the first baffle 8 and the second baffle 13. The optocoupler 10 has a sensing channel 101. The first baffle 8 or the second baffle 13 can enter the sensing channel 101 when the tonearm 2 moves. When the first baffle 8 is located within the sensing channel 101, the tonearm is in a stationary, returning position. When the second baffle 13 is located within the sensing channel 101, the tonearm 2 is in a playback-end state. The record player structure also includes an adjustment structure for adjusting the distance between the first baffle 8 and the second baffle 13.

[0023] In this example, a return baffle 5 is provided on the front of the control base to prevent the tonearm 2 from moving away from the turntable. When the tonearm 2 is in the stationary state of returning to its original position, it contacts the return baffle 5 to prevent the tonearm 2 from swinging when returning to its original position. As another embodiment of this utility model, the return baffle 5 can also be replaced by a position detection switch. The front of the control base in this example is also provided with a control knob 4 for adjusting the speed of the turntable. On the back of the control base, a control board 11 connected to the output terminal of the control knob 4 is also provided, and the optocoupler 10 is disposed on the control board 11.

[0024] In a preferred embodiment of this invention, a rotating disk 7 synchronously linked with the tonearm 2 is provided on the back of the drive shaft of the tonearm 2. The rotating disk 7 is located on one side of the control board 11. The rotating disk 7 has a first extension foot 701 extending towards the optocoupler 10, and a first baffle 8 is located at the end of the first extension foot 701. A second extension foot 702 extending towards the optocoupler 10 is hinged to the rotating disk 7, and a second baffle 13 is located at the end of the second extension foot 702. An adjustment channel 14 for adjusting the spacing is also provided between the first extension foot 701 and the second extension foot 702.

[0025] The adjustment structure in this example includes an adjustment seat 9 and an adjustment screw (not shown in the figure) disposed on the rotating disk 7. The adjustment seat 9 is provided with a screw hole 901 that mates with the adjustment screw. The second extension foot 702 is disposed on the side of the adjustment seat 9 near the first extension foot 701. The end of the adjustment screw abuts against the second extension foot 702, and the other end is provided with an adjustment handle. In this example, the second extension foot 702 can be hinged to the rotating disk 7 by a torsion spring or a spring sheet. When the adjustment screw rotates, the adjustment screw can adjust the hinge angle of the second extension foot 702 relative to the rotating disk 7, driving the second extension foot 702 to move toward or away from the first extension foot 701, thereby adjusting the distance between the first baffle 8 and the second baffle 13.

[0026] In another embodiment of this utility model, the adjusting screw can also be set to rotate automatically and be driven by a motor controlled by the control board. The motor can be fixed on the adjusting seat 9 or the rotating disk 7.

[0027] Preferably, the record player structure in this example further includes an indicator structure for indicating the moving position of the second baffle 13. As one embodiment of this invention, the indicator structure is a rotating disk mounted on the rotating disk 7, with rotation marks corresponding to different disc sizes. As another embodiment of this invention, the indicator structure can also be configured as grooves arranged sequentially along the length of the adjusting screw to indicate the rotation depth.

[0028] The working principle of this example is as follows:

[0029] The first baffle 8 and the second baffle 13 are defaulted to a standard disc size. When adjustment is needed, simply adjust the position of the second baffle 13 using the adjustment handle, allowing the probe to read the entire disc. When the tonearm 2 is in the stationary state of the return lever, the baffle 1 moves into the sensing channel 101, thus blocking the optocoupler. Figure 1 and Figure 2 As shown, the optocoupler sends an optical signal to the control board 11. Upon receiving the optical signal, the control board stops the movement of the turntable 2. When it is necessary to play a disc, the control board 11 sends a control signal, which drives the turntable 2 to move closer to the turntable 1 via the drive structure. Figure 4 As shown, at this time, the first baffle 8 leaves the sensing channel 101, the optocoupler is unobstructed, and the drive structure continues to drive the stylus 2. When playback is finished, the stylus 3 moves to the end of the disc, as shown. Figure 5 As shown, at this time, the second baffle 13 moves into the sensing channel 101, thereby blocking the optocoupler. The optocoupler sends an optical signal to the control board 11, and the control board sends a control signal to the drive structure, causing the swing arm to return in the opposite direction until it reaches the return baffle 5. At this time, the tonearm 2 is in the stationary state of the return lever, waiting for the next playback.

[0030] As can be seen from the above, this utility model can realize the start and stop of playback with a single optocoupler, effectively reducing the cost of electronic components; by setting an adjustment structure, it can be adjusted for discs of different sizes, thus being compatible with discs of different sizes.

[0031] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A record player structure capable of adapting to discs of different sizes, characterized in that: The record player includes a turntable, a control structure, and a tonearm mounted on the control structure. The structure also includes a drive structure located on the back of the control structure that drives the tonearm to swing, a first and second baffle plate linked to the tonearm, and an optocoupler cooperating with the first and second baffle plates. The optocoupler has a sensing channel. When the tonearm moves, either the first or second baffle plate can enter the sensing channel. When the first baffle plate is within the sensing channel, the tonearm is in a stationary, returned-to-position state. When the second baffle plate is within the sensing channel, the tonearm is in a playback-end state. The record player also includes an adjustment structure for adjusting the distance between the first and second baffle plates.

2. The record player structure according to claim 1, capable of adapting to different sized discs, is characterized in that: It also includes a return baffle plate disposed on the control structure to prevent the tonearm from moving away from the turntable. When the tonearm is in the stationary state of the return lever, it is in contact with the return baffle plate.

3. The record player structure according to claim 1 or 2, capable of adapting to different sized discs, is characterized in that: The adjustment structure includes a control plate disposed on the back of the control structure and a rotating disk disposed on one side of the control plate. The rotating disk is sleeved on the drive shaft of the tonearm. The optocoupler is disposed on the control plate. The rotating disk has a first extension foot extending toward the optocoupler. A first baffle is disposed at the end of the first extension foot.

4. The record player structure according to claim 3, capable of adapting to different sized discs, is characterized in that: The adjustment structure includes an adjustment seat and an adjustment screw disposed on the rotating disk. The adjustment seat is provided with a screw hole that cooperates with the adjustment screw. A second extension foot extending toward the optocoupler is hinged on the rotating disk. A second baffle is disposed at the end of the second extension foot. The adjustment screw can adjust the hinge angle of the second extension foot relative to the rotating disk, thereby adjusting the distance between the second baffle and the first baffle.

5. The record player structure according to claim 4, capable of adapting to different sized discs, is characterized in that: The record player structure also includes an indicator structure for indicating the movement position of the second baffle.

6. The record player structure according to claim 5, capable of adapting to different sized discs, is characterized in that: The indicator structure is a rotating disk set on the rotating plate, and the rotating disk is provided with rotation marks corresponding to different disc sizes.

7. The record player structure according to claim 5, capable of adapting to different sized discs, is characterized in that: The indicator structure consists of grooves arranged sequentially along the length of the adjusting screw.

8. The record player structure according to claim 4, capable of adapting to different sized discs, is characterized in that: The adjustment structure also includes a motor mounted on a rotating disk that drives the adjustment screw to rotate.

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