Floating singing arm for disc player

Abstract

The utility model relates to the technical field of record players, in particular to a floating tone arm for a record player, which comprises an air guide rail, an inner ring cylinder is slidably connected to the outer side of the air guide rail, sealing sleeves are nested at the two ends of the outer wall of the inner ring cylinder, a first annular groove is formed in one side of the outer wall of each sealing sleeve, and a second annular groove is formed in the other side of the outer wall of each sealing sleeve. A first sealing ring is in lap joint with the inner side of the first annular groove, outer ring sleeves are in lap joint with the two sides of the outer wall of the first sealing ring, an air inlet nozzle is embedded in one side of one set of outer ring sleeves, multiple sets of circulation holes are formed in the inner ring cylinder in an arrayed mode, and the outer ring sleeves are connected in a clamped mode through a buckling mechanism. The device is simple in structure and convenient to operate, when a worker finds that the first sealing ring is aged and air leakage occurs to the device, the outer ring sleeve can be rapidly separated to expose the first sealing ring, so that the worker can conveniently replace the new and old first sealing rings, and the overhaul and maintenance efficiency of the worker is improved.

Description

Technical Field

[0001] This utility model relates to the field of record player technology, and specifically to a floating tonearm for record players. Background Technology

[0002] Tonearms on turntables can be categorized into fixed-shaft tonearms and straight-cut tonearms, depending on whether they are fixed to the shaft. Straight-cut tonearms offer the most ideal performance because, physically, the stylus on a straight-cut tonearm maintains a tangential position to the circle of the record, achieving optimal signal pickup. Furthermore, the working principle of a straight-cut tonearm is most similar to that of a cutting blade (both are straight cuts), thus theoretically providing the most complete music playback. Common methods for straight-cut tonearms involve using air flotation to support the tonearm or placing it on a glass or crystal-polished shaft to achieve near-zero friction. However, in current technology, air holes are made along the length of the air guide, and air is injected into the air guide to slide against the slider mechanism. Since the slider mechanism is shorter than the air guide, air leakage is likely to occur in areas where the air holes do not contact the slider mechanism. Moreover, the air guide is relatively long, resulting in higher mold costs.

[0003] To solve the above-mentioned technical problems, Chinese Patent No. CN217113828U discloses a floating tonearm for a record player, which includes an air guide rail and a slider device that is coaxially nested and slidably mounted on the air guide rail. The slider device has an air cavity formed inside, and the air cavity has an air inlet extending outward. The air cavity also has multiple air outlets that blow air toward the air guide rail.

[0004] While the aforementioned existing technical solution avoids air leakage from the air vents during use, it also involves nesting the sealing ring inside the annular groove between the inner ring body and the sealing sleeve. Since the inner and outer ring bodies are not separable, when the sealing ring ages and becomes less airtight after a period of use, it becomes difficult for workers to quickly replace the sealing ring located inside the slider device, thus affecting the efficiency of maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a floating tonearm for record players, which solves the problem mentioned in the background art where the floating tonearm has a sealing ring nested inside the annular groove between the inner ring body and the sealing sleeve, and the inner ring body and the outer ring body have no separable structure. When the sealing ring ages and becomes unsealed after a period of use, it is difficult for the staff to quickly replace the sealing ring located inside the slider device, thus affecting the efficiency of the staff's inspection and maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A floating tonearm for a record player includes an air rail, an inner ring cylinder slidably connected to the outer side of the air rail, and sealing sleeves nested at both ends of the outer wall of the inner ring cylinder. A first annular groove is formed on one side of the outer wall of the sealing sleeve, a first sealing ring is overlapped on the inner side of the first annular groove, and outer ring sleeves are overlapped on both sides of the outer wall of the first sealing ring. An air inlet is embedded on one side of one set of outer ring sleeves. Multiple sets of flow holes are arranged inside the inner ring cylinder. The outer ring sleeves are connected by a fastening mechanism. The fastening mechanism includes a sealing pressing component and a limiting dragging component. The sealing pressing component is used to combine two sets of outer ring sleeves and improve the sealing effect, and the limiting dragging component is used to unlock and separate the two sets of outer ring sleeves.

[0008] As a preferred embodiment of this utility model, the sealing and pressing assembly includes a connecting seat installed at one end of the outer wall of one set of outer ring sleeves, and a push plate installed at one end of the outer wall of the other set of outer ring sleeves. A second sealing gasket is installed at the opposite ends of the connecting seat and the push plate.

[0009] As a preferred embodiment of this utility model, a third sealing gasket is installed on the opposite surfaces of both sets of outer ring sleeves, and the second sealing gasket, the third sealing gasket, and the first sealing ring are all made of rubber.

[0010] As a preferred embodiment of this utility model, one set of the second sealing gaskets has a mounting hole extending to the surface of the push plate on one side, and a movable plate is installed on the outer wall of the push plate at the mounting hole. The other set of the second sealing gaskets has a mating hole extending into the interior of the connecting seat on one side of the outer wall, and the mating hole is slidably connected to the movable plate.

[0011] As a preferred embodiment of this utility model, the connecting seat has a linkage groove on one side of the docking hole, the limiting dragging assembly is equipped with a movable rod, and a linkage plate is fixedly sleeved on a section of the outer wall of the movable rod located inside the linkage groove. The movable plate has an L-shaped cross-section and the linkage plate is initially inclined.

[0012] As a preferred embodiment of this utility model, a sliding groove is provided at one end of the outer wall of the linkage plate, a protruding plate is slidably connected to the inner side of the sliding groove, a first spring is installed between one side of the protruding plate and the inner wall of the sliding groove, a groove is provided on one side of the outer wall of the movable plate, the groove is slidably connected to the protruding plate, and the edge of the protruding plate is arc-shaped.

[0013] As a preferred embodiment of this utility model, the limiting and dragging assembly includes a synchronization groove formed on one side of the inner wall of the connecting seat, a synchronization block is slidably connected to the inner side of the synchronization groove, and one end of the movable rod is rotatably connected to the outer wall of the synchronization block.

[0014] As a preferred embodiment of this utility model, a torsion spring is installed between one end of the outer wall of the movable rod and the outer wall of the synchronization block, and a limit groove is opened on both sides of the synchronization groove inside the connecting seat, and the inner side of the limit groove is connected to the inner side of the synchronization groove.

[0015] As a preferred embodiment of this utility model, limit blocks that are slidably connected to the limit groove are installed on both sides of the outer wall of the synchronization block. Limit springs are installed between the outer walls of the two sets of limit blocks and the synchronization block and the inner walls of the limit groove and the synchronization groove. A drag groove extending to the inner side of the linkage groove is opened on one side of the outer wall of the connecting seat. The movable rod is slidably connected to the drag groove. A drag ring is rotatably connected to one end of the movable rod extending to the outside of the drag groove. The elastic force of the limit spring is greater than that of the torsion spring.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, two sets of outer ring sleeves are combined by a sealing and pressing component to improve the sealing effect, and a limiting and dragging component unlocks and separates the two sets of outer ring sleeves. The structure is simple and easy to operate. When the operator finds that the first sealing ring is aging and causes the device to leak, the outer ring sleeve can be quickly separated to expose the first sealing ring, so that the operator can replace the old and new first sealing rings, thus improving the efficiency of the operator's inspection and maintenance.

[0018] In this invention, the first sealing ring, after assembly, can seal the gap between the outer ring and the sealing sleeve, enhancing the sealing effect at both ends. The third sealing gaskets on the two sets of outer rings, as well as the second sealing gaskets on the connecting seat and the push plate, are also squeezed and fitted together, further ensuring the sealing effect at the joints of the two sets of outer rings after assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of some components of this utility model.

[0021] Figure 3 This is a partial three-dimensional structural diagram of the outer ring cylinder and connecting seat of this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the limiting groove and the synchronization groove of this utility model;

[0023] Figure 5 This is a partial cross-sectional view of the connector of this utility model.

[0024] In the diagram: 1. Air guide rail; 2. Inner ring cylinder; 3. First sealing ring; 4. Outer ring sleeve; 5. Air inlet; 6. Connecting seat; 7. Push plate; 8. Second sealing gasket; 9. Movable plate; 10. Movable rod; 11. Linkage plate; 12. Protruding plate; 13. First spring; 14. Synchronizing block; 15. Torsion spring; 16. Limiting block; 17. Limiting spring; 18. Drag ring; 19. Sealing sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figures 1-5 This utility model provides a technical solution:

[0027] A floating tonearm for a record player includes an air rail 1. An inner ring cylinder 2 is slidably connected to the outer side of the air rail 1. Sealing sleeves 19 are nested at both ends of the outer wall of the inner ring cylinder 2. A first annular groove is formed on one side of the outer wall of the sealing sleeve 19. A first sealing ring 3 overlaps inside the first annular groove. Outer ring sleeves 4 overlap on both sides of the outer wall of the first sealing ring 3. An air inlet 5 is embedded on one side of one set of outer ring sleeves 4. Multiple sets of flow holes are arranged inside the inner ring cylinder 2. The outer ring sleeves 4 are engaged by a fastening mechanism, which includes a sealing and pressing component and a limiting and dragging component. The sealing and pressing assembly is used to combine the two sets of outer ring sleeves 4 and improve the sealing effect. The limiting and dragging assembly is used to unlock and separate the two sets of outer ring sleeves 4. When using this device, the sealing and pressing assembly can combine the two sets of outer ring sleeves 4 and improve the sealing effect, and the limiting and dragging assembly can unlock and separate the two sets of outer ring sleeves 4. The structure is simple and easy to operate. When the operator finds that the first sealing ring 3 is aging and causes the device to leak, the outer ring sleeves 4 can be quickly separated to expose the first sealing ring 3, so that the operator can replace the old and new first sealing rings 3, which improves the efficiency of the operator's inspection and maintenance.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the sealing and pressing assembly includes a connecting seat 6 installed at one end of the outer wall of one set of outer ring sleeves 4, and a push plate 7 installed at one end of the outer wall of the other set of outer ring sleeves 4. Second sealing gaskets 8 are installed at opposite ends of the connecting seat 6 and the push plate 7. One side of one set of second sealing gaskets 8 has an installation hole extending to the surface of the push plate 7. A movable plate 9 is installed on the outer wall of the push plate 7 at the installation hole. One side of the outer wall of the other set of second sealing gaskets 8 has a mating hole extending into the interior of the connecting seat 6. The mating hole and the movable plate 9 are slidably connected. First, when the first sealing ring 3 is assembled, it can be opened and inserted from the end of the sealing sleeve 19 and pushed to the first annular groove on the sealing sleeve 19. Then, the two sets of outer ring sleeves 4 can be attached to the outer wall of the first sealing ring 3 and the two sets of outer ring sleeves 4 can be pressed against each other. The two sets of opposite third sealing gaskets and the two sets of opposite second sealing gaskets 8 on the connecting seat 6 and the push plate 7 are all deformed by mutual compression. At this time, the movable plate 9 is driven to move along the mating hole towards the inside of the linkage groove.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a linkage groove is provided inside the connecting seat 6 on one side of the docking hole. A movable rod 10 is installed on the limiting and dragging assembly. A linkage plate 11 is fixedly sleeved on a section of the outer wall of the movable rod 10 located inside the linkage groove. The movable plate 9 has an L-shaped cross-section. The linkage plate 11 is initially inclined. A sliding groove is provided at one end of the outer wall of the linkage plate 11. A protruding plate 12 is slidably connected inside the sliding groove. A first spring 13 is installed between one side of the protruding plate 12 and the inner wall of the sliding groove. A groove is provided on one side of the outer wall of the movable plate 9. The groove is slidably connected to the protruding plate 12. The edge of the protruding plate 12 is arc-shaped. A linkage plate 13 is installed between one end of the outer wall of the movable rod 10 and the outer wall of the synchronizing block 14. Then, when the movable plate 9 contacts the end of the linkage plate 11, the linkage plate 11 and the movable rod 10 are pushed and deflected, and the torsion spring 15 also begins to retract. As the pushing progress increases, the linkage plate 11 gradually rotates from the inclined state to the vertical state. When the convex plate 12 contacts the outer wall of the movable plate 9, it can be pushed and retracted towards the inside of the sliding groove and squeeze the first spring 13 to retract. At this time, the movable plate 9 continues to be pushed down to move, so that the groove is close to the port of the sliding groove. At this time, the first spring 13 can drive the convex plate 12 to pop out and get stuck in the inside of the groove. At this time, the movable plate 9 can no longer move, and the combination of the two sets of outer ring sleeves 4 is completed.

[0030] In this embodiment, as Figure 3 , Figure 4 and Figure 5As shown, a third sealing gasket is installed on the opposite surfaces of the two sets of outer ring sleeves 4. The second sealing gasket 8, the third sealing gasket, and the first sealing ring 3 are all made of rubber. Furthermore, after assembly, the first sealing ring 3 can seal the gap between the outer ring sleeve 4 and the sealing sleeve 19, enhancing the sealing effect at both ends. The third sealing gaskets on the two sets of outer ring sleeves 4, as well as the second sealing gasket 8 on the connecting seat 6 and the push plate 7, are also squeezed and fitted together, further ensuring the sealing effect at the joints of the two sets of outer ring sleeves 4 after assembly.

[0031] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, the limiting and dragging assembly includes a synchronization groove formed on one side of the inner wall of the connecting seat 6. A synchronization block 14 is slidably connected to the inner side of the synchronization groove. One end of the movable rod 10 is rotatably connected to the outer wall of the synchronization block 14. Limiting grooves are formed on both sides of the synchronization groove inside the connecting seat 6, and the inner side of the limiting groove communicates with the inner side of the synchronization groove. Limiting blocks 16 are installed on both sides of the outer wall of the synchronization block 14 and are slidably connected to the limiting groove. Limiting springs 17 are installed between the outer walls of the two sets of limiting blocks 16 and the synchronization block 14 and the inner walls of the limiting groove and the synchronization groove. A dragging groove extending into the inner side of the linkage groove is formed on one side of the outer wall of the connecting seat 6. The movable rod 10 is slidably connected to the dragging groove. A dragging ring 18 is rotatably connected to one end of the movable rod 10 extending to the outer side of the dragging groove. The elastic force of the limiting spring 17 is greater than that of the torsion spring 15. Furthermore... When the first sealing ring 3 or the third sealing gasket at both ends ages and causes air leakage in the component, the drag ring 18 can be engaged to move the movable rod 10 inside the drag groove, causing the linkage plate 11 to be dragged horizontally away from the outer wall of the movable plate 9. The protruding plate 12 is also naturally dragged out of the groove. The synchronizing block 14 and the limiting block 16 also move inside the synchronizing groove and the limiting groove and squeeze the limiting spring 17 to retract. At the same time as the protruding plate 12 leaves the groove, the pressure applied to the two sets of second sealing gaskets 8, the third rubber gasket and the first sealing ring 3 disappears and they all rebound to a certain extent, driving the movable plate 9 towards the docking hole. At this time, releasing the drag ring 18 will not cause it to lock again. Then the second sealing gasket 8, the third rubber gasket and the first sealing ring 3 on the separated component can be replaced or maintained.

[0032] The implementation principle of a floating tonearm for a record player according to an embodiment of this application is as follows: When assembling, the first sealing ring 3 can be first opened and inserted from the end of the sealing sleeve 19, then pushed to the first annular groove on the sealing sleeve 19. Next, two sets of outer ring sleeves 4 can be fitted against the outer wall of the first sealing ring 3, and the two sets of outer ring sleeves 4 are pressed against each other. The two sets of opposing third sealing gaskets and the two sets of opposing second sealing gaskets 8 on the connecting seat 6 and the push plate 7 are all deformed by mutual compression. At this time, the movable plate 9 is driven to move along the docking hole towards the inner side of the linkage groove. When the movable plate 9 contacts the linkage plate 1... When the end of 1 is reached, the linkage plate 11 and the movable rod 10 are pushed and deflected, and the torsion spring 15 also begins to retract. As the pushing progress increases, the linkage plate 11 gradually rotates from an inclined state to a vertical state. When the convex plate 12 contacts the outer wall of the movable plate 9, it can be pushed and retracted towards the inside of the sliding groove, squeezing the first spring 13 to retract. At this time, the movable plate 9 continues to be pushed downward to move it, so that the groove is close to the end of the sliding groove. At this time, the first spring 13 can drive the convex plate 12 to pop out and lock into the inside of the groove. At this time, the movable plate 9 can no longer move, thus completing the movement. The combination of the two sets of outer ring sleeves 4, after assembly, allows the first sealing ring 3 to seal the gap between the outer ring sleeve 4 and the sealing sleeve 19, enhancing the sealing effect at both ends. The third sealing gaskets on the two sets of outer ring sleeves 4, as well as the second sealing gaskets 8 on the connecting seat 6 and the push plate 7, are also pressed together, further ensuring the sealing effect at the joints of the two sets of outer ring sleeves 4 after assembly. When the first sealing ring 3 or the third sealing gasket at both ends ages, causing air leakage in the components, the drag ring 18 can be engaged to drive the movable rod 10 to move inside the drag groove, causing the linkage plate 11 to be dragged horizontally and further away. As the movable plate 9 moves away from its outer wall, the protruding plate 12 is naturally pulled out of the groove. The synchronizing block 14 and the limiting block 16 also move inside the synchronizing groove and the limiting groove, squeezing the limiting spring 17 to retract. As the protruding plate 12 disengages from the groove, the pressure applied to the two sets of second sealing gaskets 8, the third rubber gasket, and the first sealing ring 3 disappears, and they all rebound to a certain extent, driving the movable plate 9 toward the docking hole. At this time, releasing the dragging ring 18 will not cause it to lock again. Subsequently, the second sealing gasket 8, the third rubber gasket, and the first sealing ring 3 on the separated parts can be replaced or maintained.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating tone arm for a record player comprising an air track (1), characterized in that: The outer side of the air guide rail (1) is slidably connected to an inner ring cylinder (2). Both ends of the outer wall of the inner ring cylinder (2) are nested with sealing sleeves (19). A first annular groove is opened on one side of the outer wall of the sealing sleeve (19). A first sealing ring (3) overlaps on the inner side of the first annular groove. Both sides of the outer wall of the first sealing ring (3) are overlapped with outer ring sleeves (4). An air inlet (5) is embedded on one side of one set of outer ring sleeves (4). Multiple sets of flow holes are arranged inside the inner ring cylinder (2). The outer ring sleeves (4) are connected by a fastening mechanism. The fastening mechanism includes a sealing pressing component and a limiting dragging component. The sealing pressing component is used to combine two sets of outer ring sleeves (4) and improve the sealing effect. The limiting dragging component is used to unlock and separate the two sets of outer ring sleeves (4).

2. A floating tone arm for a record player as defined in claim 1, characterized in that: The sealing and pressing assembly includes a connecting seat (6) installed at one end of the outer wall of one set of outer ring sleeves (4), and a push plate (7) installed at one end of the outer wall of the other set of outer ring sleeves (4). A second sealing gasket (8) is installed at the opposite ends of the connecting seat (6) and the push plate (7).

3. A floating tone arm for a record player as defined in claim 2, characterized in that: Both sets of outer ring sleeves (4) have a third sealing gasket installed on their opposite surfaces. The second sealing gasket (8), the third sealing gasket, and the first sealing ring (3) are all made of rubber.

4. A floating tone arm for a record player as defined in claim 3, characterized in that: One set of the second sealing gaskets (8) has an installation hole extending to the surface of the push plate (7) on one side. The outer wall of the push plate (7) is fitted with a movable plate (9) at the installation hole. The other set of the second sealing gaskets (8) has a mating hole extending to the interior of the connecting seat (6) on one side of the outer wall. The mating hole and the movable plate (9) are slidably connected.

5. A floating tone arm for a record player as defined in claim 4, characterized in that: The connecting seat (6) has a linkage groove on one side of the docking hole. The limiting dragging assembly is equipped with a movable rod (10). A linkage plate (11) is fixedly sleeved on a section of the outer wall of the movable rod (10) located inside the linkage groove. The movable plate (9) has an L-shaped cross section and the linkage plate (11) is initially inclined.

6. A floating tone arm for a record player as defined in claim 5, characterized in that: A sliding groove is provided at one end of the outer wall of the linkage plate (11), and a protruding plate (12) is slidably connected to the inner side of the sliding groove. A first spring (13) is installed between one side of the protruding plate (12) and the inner wall of the sliding groove. A groove is provided on one side of the outer wall of the movable plate (9), and the groove is slidably connected to the protruding plate (12). The edge of the protruding plate (12) is arc-shaped.

7. A floating tone arm for a record player as defined in claim 6, characterized in that: The limiting dragging assembly includes a synchronization groove opened on one side of the inner wall of the connecting seat (6), and a synchronization block (14) is slidably connected to the inner side of the synchronization groove. One end of the movable rod (10) is rotatably connected to the outer wall of the synchronization block (14).

8. A floating tone arm for a record player as defined in claim 7, characterized in that: A torsion spring (15) is installed between one end of the outer wall of the movable rod (10) and the outer wall of the synchronization block (14). The connecting seat (6) has limit grooves on both sides of the synchronization groove, and the inner side of the limit groove is connected to the inner side of the synchronization groove.

9. A floating tone arm for a record player as defined in claim 8, characterized in that: Both sides of the outer wall of the synchronization block (14) are equipped with limiting blocks (16) that are slidably connected to the limiting groove. Limiting springs (17) are installed between the outer walls of the two sets of limiting blocks (16) and the inner walls of the limiting groove and the synchronization groove. A dragging groove extending to the inner side of the linkage groove is opened on one side of the outer wall of the connecting seat (6). The movable rod (10) is slidably connected to the dragging groove. A dragging ring (18) is rotatably connected to one end of the movable rod (10) extending to the outside of the dragging groove. The elastic force of the limiting spring (17) is greater than that of the torsion spring (15).

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