Precise fine tuning singing arm phonograph

Abstract

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.

Description

Technical Field

[0001] This utility model relates to record players, and more particularly to record players with precision fine-tuning tonearms. Background Technology

[0002] A precision tonearm turntable is a device used to play vinyl records. It uses a tonearm to carry a cartridge and converts the vibration generated by the contact between the stylus and the grooves of the record into an electrical signal, thereby playing sound.

[0003] In existing technology, the typical operating procedure for a precision tonearm turntable is as follows: First, place the cartridge on a stable platform, connect the power supply, and turn on the device. Next, carefully place the vinyl record on the turntable, aligning its center with the turntable axis. Then, the user will attempt to adjust the tonearm position so that the stylus falls precisely at the beginning of the record. Adjusting the tonearm primarily relies on simple knobs or manual adjustment mechanisms to change its height, angle, and horizontal position.

[0004] However, external vibrations or vibrations from the equipment itself can cause tonearm displacement and stylus deviation from the groove, further increasing tracking error, severely damaging sound quality, and greatly affecting the user's music listening experience. To address these issues, a precision fine-tuning tonearm turntable was proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a precision fine-tuning tonearm record player, which aims to solve the problem of stylus deviation from the groove in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a precision fine-tuning tonearm turntable, including a housing, a box body fixedly connected to the inner wall of the housing, a tonearm rotatably connected to the top outer wall of the box body, an adjustment mechanism provided on the top outer wall of the box body, the adjustment mechanism including a fixing plate, the bottom of the fixing plate fixedly connected to the top outer wall of the tonearm, a support rod fixedly connected to the top of the fixing plate, a slide rail fixedly connected to the top of the support rod, a slider slidably connected to the outer wall of the slide rail, a limit plate slidably connected to the inner wall of the slider, and magnetic grooves respectively provided on the two outer walls of the slide rail.

[0007] As a further description of the above technical solution: the top of the slider is rotatably connected to a rotating shaft, and an elliptical wheel is fixedly connected to the outer wall of the rotating shaft.

[0008] As a further description of the above technical solution: the outer wall of the slider is provided with a groove, and a limit block is slidably connected in the inner wall of the groove, and the outer wall of the limit block is fixedly connected to the side outer wall of the limit plate.

[0009] As a further description of the above technical solution: a magnetic block is fixedly connected to the outer wall of the limiting plate, and the magnetic block is adapted to the magnetic groove.

[0010] As a further description of the above technical solution: a placement plate is fixedly connected to the top outer wall of the housing, and the top outer wall of the placement plate contacts the bottom of the tonearm.

[0011] As a further description of the above technical solution: an auxiliary mechanism is provided above the top of the housing, the auxiliary mechanism includes a fixing groove, the fixing groove is opened on the outer wall of the tonearm, and a positioning plate is fixedly connected in the inner wall of the fixing groove.

[0012] As a further description of the above technical solution: a threaded sleeve is fixedly connected to the outer wall of the positioning plate, a screw is threadedly connected to the inner wall of the threaded sleeve, and a sliding seat is fixedly connected to the bottom end of the screw.

[0013] As a further description of the above technical solution: a smooth plate is fixedly connected to the top of the box body.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by rotating the elliptical wheel, its protrusion presses against the limiting plate, causing the slider to slide on the slide rail, thereby changing the horizontal position of the tonearm. This can adapt to the playback requirements of different records. After adjustment, the magnetic block and magnetic groove attract and fix the tonearm, preventing displacement due to vibration during playback, reducing stylus tracking error, significantly improving sound quality, and bringing users a better music experience.

[0016] 2. In this utility model, after the tonearm is placed on the record, the positioning plate and the threaded sleeve provide additional support for the tonearm, alleviate stylus vibration, reduce wear between the stylus and the record, and the height of the positioning plate can be finely adjusted by rotating the screw. In conjunction with the adjustment mechanism, the contact state between the stylus and the record is optimized, further improving the playback quality and reducing equipment wear. Attached Figure Description

[0017] Figure 1 This is a front view of the precision fine-tuning tonearm record player proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the precision fine-tuning tonearm record player proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the magnetic slot of the precision fine-tuning tonearm in the record player proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the magnetic block of the precision fine-tuning tonearm for record players proposed in this utility model;

[0021] Figure 5 The precision fine-tuning tonearm record player proposed in this utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 6 This is a bottom view of the precision fine-tuning tonearm slide rail proposed in this utility model;

[0023] Figure 7 This is a schematic diagram of the shaft of the precision fine-tuning tonearm phonograph proposed in this utility model.

[0024] Legend:

[0025] 1. Placement box; 2. Box body; 3. Tonearm; 4. Adjustment mechanism; 401. Fixing plate; 402. Support rod; 403. Slide rail; 404. Slider; 405. Rotating shaft; 406. Elliptical wheel; 407. Limiting plate; 408. Limiting block; 409. Magnetic block; 410. Magnetic groove; 411. Placement plate; 5. Auxiliary mechanism; 501. Smooth plate; 502. Fixing groove; 503. Positioning plate; 504. Threaded sleeve; 505. Screw; 506. Sliding seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 - Figure 3This utility model provides an embodiment of a precision fine-tuning tonearm turntable, including a housing 1. A housing 2 is fixedly connected to the inner wall of the housing 1. A tonearm 3 is rotatably connected to the top outer wall of the housing 2. The tonearm 3 can rotate around its connection point with the housing 2. This rotatable connection allows the tonearm 3 to move flexibly, thereby accurately placing the stylus on different positions of the record. This ensures the stylus can follow the grooves of the record, accurately reading the information on the record and guaranteeing the continuity and accuracy of music playback. An adjustment mechanism 4 is provided on the top outer wall of the housing 2. The adjustment mechanism 4 includes a fixing plate 401, the bottom of which is fixedly connected to the housing 2. On the top outer wall of the tonearm 3, a fixed plate 401 is used to provide support. As a base, a support rod 402 is fixedly connected to the top of the fixed plate 401. The support rod 402 raises the entire height. A slide rail 403 is fixedly connected to the top of the support rod 402. Normally, it is located in the middle of the slide rail 403. It can also be removed and not placed on it. When the slider 404 moves to one end of the movable axis point of the cartridge 2 where the tonearm 3 is located, it can increase the force at that end, so that the other end is pulled by force and will not fall easily. When the slider 404 moves to the side of the mirror image mentioned above, the tonearm 3 can be pressed down by gravity during use, so that the stylus can make closer contact with the record.

[0028] Reference Figure 3 and Figure 6 The inner wall of the slider 404 is slidably connected to the limiting plate 407, which can play a limiting role. The outer walls on both sides of the slide rail 403 are respectively provided with magnetic grooves 410, and all the inner walls of the magnetic grooves 410 are fixedly connected with magnets to play a magnetic attraction role.

[0029] Reference Figure 3 , Figure 4 and Figure 7The top of slider 404 is rotatably connected to a rotating shaft 405. Slider 404 serves as a counterweight to enhance the gravity effect. A sliding groove is formed on the top outer wall of slide rail 403, and slider 404 is slidably connected inside the sliding groove. Slider 404 slides in the sliding groove on slide rail 403 by a sliding block fixedly connected to its bottom, which can achieve the effects of limiting and counterweighting. An elliptical wheel 406 is fixedly connected to the outer wall of rotating shaft 405. By rotating elliptical wheel 406, the protrusions can be used to squeeze the two limiting plates 407 away from each other. A groove is formed on the outer wall of slider 404, and a limiting block 408 is slidably connected to the inner wall of the groove. The limiting block 408 controls the movement of the slider in the groove. The internal sliding action limits the position plate 407, restricting its path and preventing it from detaching from the slider 404. The outer wall of the limiting block 408 is fixedly connected to the outer wall of the limiting plate 407. A magnetic block 409 is fixedly connected to the outer wall of the limiting plate 407. The outer wall of the magnetic block 409 is made of iron and can be magnetically fixed in the magnetic slot 410, while also being easy to disassemble. The magnetic block 409 is compatible with the magnetic slot 410. A placement plate 411 is fixedly connected to the top outer wall of the housing 2. The top outer wall of the placement plate 411 contacts the bottom of the tonearm 3. The placement plate 411 can support the tonearm 3 when it is not in use.

[0030] Reference Figure 2 and Figure 5 An auxiliary mechanism 5 is provided on the top of the housing 2. The auxiliary mechanism 5 includes a fixing groove 502, which is opened on the outer wall of the tonearm 3. A positioning plate 503 is fixedly connected to the inner wall of the fixing groove 502. A threaded sleeve 504 is fixedly connected to the outer wall of the positioning plate 503. After the tonearm 3 is placed on the record, a screw 505 is threadedly connected to the inner wall of the threaded sleeve 504. A sliding seat 506 is fixedly connected to the bottom end of the screw 505. A slidable ball is provided at the bottom of the sliding seat 506. A smooth plate 501 is fixedly connected to the top of the housing 2. The screw 505 on the threaded sleeve 504 and the ball at the bottom of the sliding seat 506 are slidably connected to the smooth plate 501, which increases the support of the tonearm 3, so that the stylus does not fall on the record entirely by gravity, thus reducing vibration and wear. Furthermore, by rotating the screw 505, the height of the entire positioning plate 503 can be adjusted, and further precise adjustment can be achieved in conjunction with the adjustment mechanism 4.

[0031] Working principle: The tonearm 3 is rotatably connected to the top outer wall of the housing 2. When not in use, the tonearm 3 is placed on the placement plate 411. The placement plate 411 supports the tonearm 3, preventing damage to the connection parts due to prolonged suspension, and also preventing the tonearm 3 from accidentally shaking.

[0032] Depending on the type and texture of the record, and playback requirements, the horizontal position of the tonearm 3 needs to be adjusted. Rotating the elliptical wheel 406 causes its protrusions to press against the limiting plate 407. Under the pressure of the elliptical wheel 406, the limiting plate 407 drives the slider 404 to slide on the slide rail 403. When the slider 404 moves towards one end of the axis between the tonearm 3 and the housing 2, it increases the weight at that end, making the other end of the tonearm 3 more stable under gravity and preventing it from easily falling. When the slider 404 moves to the other side, it allows the tonearm 3 to press down under gravity, making the stylus fit more tightly against the record, improving the accuracy of reading record information. This achieves the initial adjustment of the tonearm 3's horizontal position. After the stylus moves to the innermost position, the ball bearings will also move around the axis of rotation of the tonearm 3 and move to a smooth surface. The inner side of plate 501 does not contact the record, which provides additional support for tonearm 3, so that the stylus no longer relies entirely on gravity to contact the record, thus adapting to the playback requirements of different records. When tonearm 3 is adjusted to a suitable horizontal position, the limiting plate 407 is pushed, so that the magnetic block 409 on the outer wall of the limiting plate 407 is inserted into the magnetic groove 410 on the outer wall of the slide rail 403. The magnet fixed on the inner wall of the magnetic groove 410 will generate a strong attraction force with the magnetic block 409, firmly fixing the slider 404 and the tonearm 3 connected to it in the current position. In this way, even if the tonearm 3 is subjected to slight external vibration or vibration generated by the operation of the box itself during record playback, the stylus can stably follow the groove of the record and continuously and accurately read the record information, ensuring the stability of music playback.

[0033] After placing tonearm 3 on the record for playback, position the stylus closest to the outermost edge of the record and control the position of the end where the positioning plate 503 is located. Rotate screw 505, which causes the threaded sleeve 504 to move up and down. The ball bearings at the bottom of the sliding seat 506 slide on the outer edge of the smooth plate 501. After the stylus moves to the innermost edge, the ball bearings also move around the axis of rotation of tonearm 3 and move to the inner edge of the smooth plate 501 without contacting the record. This provides additional support for tonearm 3, so that the stylus no longer relies entirely on gravity to contact the record, effectively reducing stylus vibration during playback, reducing wear between the stylus and the record, and extending the service life of the stylus and the record. In addition, by precisely rotating screw 505, the height of positioning plate 503 can be finely adjusted, which, together with adjustment mechanism 4, allows for more precise adjustment of tonearm 3, further optimizing the contact state between the stylus and the record, improving sound quality, and achieving high-quality music playback.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision fine-tuning tonearm record player, including a housing (1), characterized in that: The inner wall of the placement box (1) is fixedly connected to the box body (2), and the top outer wall of the box body (2) is rotatably connected to the tonearm (3). The top outer wall of the box body (2) is provided with an adjustment mechanism (4). The adjustment mechanism (4) includes a fixed plate (401), the bottom of which is fixedly connected to the top outer wall of the tonearm (3), a support rod (402) is fixedly connected to the top of the fixed plate (401), a slide rail (403) is fixedly connected to the top of the support rod (402), a slider (404) is slidably connected to the outer wall of the slide rail (403), a limit plate (407) is slidably connected to the inner wall of the slider (404), and magnetic grooves (410) are respectively opened on the outer walls of both sides of the slide rail (403).

2. The precision fine-tuning tonearm record player according to claim 1, characterized in that: The top of the slider (404) is rotatably connected to a rotating shaft (405), and an elliptical wheel (406) is fixedly connected to the outer wall of the rotating shaft (405).

3. The precision fine-tuning tonearm record player according to claim 1, characterized in that: The outer wall of the slider (404) is provided with a groove, and a limiting block (408) is slidably connected in the inner wall of the groove. The outer wall of the limiting block (408) is fixedly connected to the side outer wall of the limiting plate (407).

4. The precision fine-tuning tonearm record player according to claim 1, characterized in that: A magnetic block (409) is fixedly connected to the outer wall of the limiting plate (407), and the magnetic block (409) is adapted to the magnetic groove (410).

5. The precision fine-tuning tonearm record player according to claim 1, characterized in that: A placement plate (411) is fixedly connected to the top outer wall of the box (2), and the top outer wall of the placement plate (411) is in contact with the bottom of the tonearm (3).

6. The precision fine-tuning tonearm record player according to claim 1, characterized in that: An auxiliary mechanism (5) is provided above the top of the box body (2). The auxiliary mechanism (5) includes a fixing groove (502). The fixing groove (502) is opened on the outer wall of the tonearm (3). A positioning plate (503) is fixedly connected in the inner wall of the fixing groove (502).

7. The precision fine-tuning tonearm record player according to claim 6, characterized in that: The outer wall of the positioning plate (503) is fixedly connected to a threaded sleeve (504), the inner wall of the threaded sleeve (504) is threadedly connected to a screw (505), and the bottom end of the screw (505) is fixedly connected to a sliding seat (506).

8. The precision fine-tuning tonearm record player according to claim 1, characterized in that: A smooth plate (501) is fixedly connected to the top of the box (2).

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