Record disc module and vinyl record device

Abstract

The utility model relates to the technical field of disc players, in particular to a disc module and a vinyl disc device. The disc module comprises a machine body, a rotating shaft and a rotating disc, the rotating shaft is rotationally connected with the machine body through a bearing assembly, the rotating shaft is fixedly connected with the rotating disc, a preset distance is formed between the rotating disc and the machine body, and the rotating shaft comprises a first connecting section and a second connecting section which are sequentially connected; the first connecting section is connected with the bearing assembly, and the second connecting section is connected with the turntable; wherein the diameter of the first connecting section is smaller than that of the second connecting section, so that the end part, facing the first connecting section, of the second connecting section is clamped and limited with the bearing assembly, or an annular clamping bulge is arranged at the joint of the first connecting section and the second connecting section; and the rotating shaft is clamped and limited with the bearing assembly through the annular clamping bulge. By the adoption of the mode, the material cost and the machining cost can be reduced, and the using stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of record players, in particular to a turntable module and a vinyl record device. Background Art

[0002] A vinyl record device, also known as a phonograph, is a sound playback device that stores sound in the concave and convex textures carved on the surface of the record using acoustic methods. When you need to play music, place the record on the turntable of the vinyl record device, and the turntable drives the record to rotate under the stylus. The audio information collected by the stylus is amplified by the circuit and output to a device with a speaker to play the music.

[0003] Among them, the rotation of the turntable requires a corresponding rotating component to drive it. For example, the published patent 202021019161.2 discloses a method of realizing the required transmission by matching a sleeve and an axis. In the above structure, it is necessary to use balls to realize the rotation support of the axis. However, this structure has high requirements on the hardness and smoothness of the balls, and has high material costs and processing precision. In addition, long-term use is still prone to friction scratches, resulting in the balls no longer being smooth or the spherical structure being deformed, which is not conducive to improving stability during use. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a turntable module and a vinyl record device, which can reduce material costs and processing costs and improve stability during use.

[0005] The utility model discloses a turntable module, comprising: a body, a rotating shaft and a turntable, wherein the rotating shaft is rotatably connected to the body through a bearing assembly, the rotating shaft is fixedly connected to the turntable, and a preset distance is provided between the turntable and the body, the rotating shaft comprises a first connecting section and a second connecting section which are connected in sequence, the first connecting section is connected to the bearing assembly, and the second connecting section is connected to the turntable; wherein the diameter of the first connecting section is smaller than the diameter of the second connecting section, so that the second connecting section is clamped and limited with the bearing assembly toward the end of the first connecting section, or an annular clamping protrusion is provided at the connection between the first connecting section and the second connecting section, so that the rotating shaft is clamped and limited with the bearing assembly through the annular clamping protrusion.

[0006] Optionally, the bearing assembly includes a bearing seat connected to the machine body, and a first bearing and a second bearing spaced apart in the bearing seat, wherein the outer rings of the first bearing and the second bearing are respectively connected to the bearing seat, the inner rings of the first bearing and the second bearing are respectively connected to the first connecting section, and the annular cam or the second connecting section is abutted against the inner ring of the first bearing.

[0007] Optionally, the bearing seat includes a seat body, and a through hole arranged in the seat body, the first bearing and the second bearing are respectively arranged at two ends of the through hole, and a spacer sleeve is arranged between the first bearing and the second bearing.

[0008] Optionally, the bearing seat includes a seat body and a through hole arranged in the seat body, and receiving grooves are respectively arranged at both ends of the through hole. The receiving grooves are arranged concentrically with the through hole, and the first bearing and the second bearing are respectively clamped in the receiving grooves.

[0009] Optionally, when the second connecting section abuts against the inner ring of the first bearing, an annular groove is formed at one end of the first connecting section facing the second connecting section.

[0010] Optionally, a limiting groove is provided on the second connecting section, and the rotating disk is arranged at the limiting groove and is integrally injection-molded with the second connecting section.

[0011] Optionally, the turntable includes a turntable body and a connecting portion provided on the turntable body, and the turntable is connected to the second connecting section via the connecting portion.

[0012] Optionally, the outer ring of the disc body is provided with a flange, and the flange is folded toward one side of the body.

[0013] Optionally, a plurality of reinforcing ribs are provided on a side of the disc body facing the machine body, and the reinforcing ribs are connected between the disc body and the connecting portion.

[0014] The utility model also discloses a vinyl record device, comprising the turntable module as described above.

[0015] Compared with the prior art, the beneficial effects of the turntable module and vinyl record device provided by the embodiment of the utility model are as follows: the turntable module and vinyl record device provided by the embodiment of the present application, by arranging a bearing assembly on the body, when the rotating shaft is rotatably connected to the body, the bearing assembly is used to rotatably connect the body to ensure the stability of the rotation of the rotating shaft. At the same time, by arranging an annular convex at the connection between the first connecting section and the second connecting section on the rotating shaft, or making the rotating shaft adopt a form in which the diameter of the first connecting section is smaller than the diameter of the second connecting section, when the rotating shaft cooperates with the bearing assembly, the rotating shaft can be limited by the second connecting section or the annular convex, so that the turntable connected to the rotating shaft and the body maintain a preset distance and stability, and no up and down fluctuations occur when the turntable rotates, so that the cooperation between the tonearm and the turntable remains stable. By adopting the above form, there is no need to use balls to achieve the required support, and the requirements for processing accuracy are relatively low, which can reduce material costs and processing costs, and improve stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a structural schematic diagram of a turntable module provided by an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of a turntable module provided by an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a rotating shaft provided by an embodiment of the utility model;

[0020] Figure 4 for Figure 2 A partial enlarged view of the middle A;

[0021] Figure 5 This is a schematic diagram of the structure of the turntable and the machine body provided in the embodiment of the utility model;

[0022] Figure 6 Bit Figure 5 A partial enlarged view of point B in the middle.

[0023] The reference numerals in the figures are:

[0024] 100, turntable module; 110, body; 120, rotating shaft; 122, first connecting section; 124, second connecting section; 126, annular cam; 127, annular groove; 128, limiting groove; 130, turntable; 132, limiting cam; 134, turntable body; 135, connecting part; 136, flange; 137, reinforcing rib; 140, bearing assembly; 142, bearing seat; 1422, seat body; 1424, through hole; 144, first bearing; 146, second bearing. DETAILED DESCRIPTION

[0025] In the current form of rotating support of the shaft core by means of balls, the hardness and smoothness of the balls are required to be high, the material cost and processing precision are required to be high, and long-term use is still prone to friction scratches, resulting in the balls no longer being smooth or the spherical structure being deformed, which is not conducive to improving the stability during use. The embodiments of the utility model provide the following technical solutions to overcome the above problems. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other in the absence of conflict. Now, in conjunction with the accompanying drawings, the preferred embodiments of the utility model are described in detail.

[0026] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a turntable module 100, including: a body 110, a rotating shaft 120 and a turntable 130, the rotating shaft 120 is rotatably connected to the body 110 through a bearing assembly 140, the rotating shaft 120 is fixedly connected to the turntable 130, and there is a preset distance between the turntable 130 and the body 110, the rotating shaft 120 includes a first connecting section 122 and a second connecting section 124 connected in sequence, the first connecting section 122 is connected to the bearing assembly 140, and the second connecting section 124 is connected to the turntable 130, wherein the diameter of the first connecting section 122 is smaller than the diameter of the second connecting section 124, so that the second connecting section 124 is clamped and limited with the bearing assembly 140 toward the end of the first connecting section 122, or, an annular clamping protrusion 126 is provided at the connection between the first connecting section 122 and the second connecting section 124, so that the rotating shaft 120 is clamped and limited with the bearing assembly 140 through the annular clamping protrusion 126.

[0027] In order to ensure the smooth rotation between the rotating shaft 120 and the body 110, the rotating shaft 120 and the body 110 are connected by a bearing assembly 140. At the same time, the rotating shaft 120 is connected to the bearing assembly 140 through a first connecting section 122, and the second connecting section 124 is connected to the turntable 130 to ensure a preset distance between the turntable 130 and the body 110, thereby ensuring that the turntable 130 is not affected by the body 110 when rotating.

[0028] When the rotating shaft 120 supports the rotating disk 130 and drives the rotating disk 130 to rotate, in order to ensure the reliability of the rotating disk 130 when in use, it is necessary to provide an annular clamping protrusion 126 (such as Figure 3 As shown in FIG. 1 , the annular protrusion 126 can be clamped with the bearing assembly 140 to limit the rotation shaft 120, thereby preventing the rotation shaft 120 from axially moving, thereby ensuring a high degree of stability when the turntable 130 rotates, so that the turntable 130 and the tonearm can be better matched. It can be understood that the diameter of the first connecting section 122 can also be made smaller than the diameter of the second connecting section 124, so that the end of the second connecting section 124 facing the first connecting section 122 can be clamped and limited with the bearing assembly 140 to achieve the same purpose.

[0029] The turntable module 100 provided in the embodiment of the present application is provided with a bearing assembly 140 on the body 110. When the rotating shaft 120 is rotatably connected with the body 110, the bearing assembly 140 is used to rotatably connect with the body 110, so as to ensure the stability of the rotation of the rotating shaft 120. At the same time, by providing an annular convex protrusion 126 at the connection between the first connecting section 122 and the second connecting section 124 on the rotating shaft 120, or by making the rotating shaft 120 adopt a form in which the diameter of the first connecting section 122 is smaller than the diameter of the second connecting section 124, when the rotating shaft 120 is matched with the bearing assembly 140, the rotating shaft 120 can be limited by the second connecting section 124 or the annular convex protrusion, so that the preset distance between the turntable 130 connected to the rotating shaft 120 and the body 110 is kept stable, and when the turntable 130 rotates, there will be no up and down fluctuation, so that the cooperation between the tone arm and the turntable 130 remains stable. By adopting the above form, there is no need to use balls to achieve the required support, and the requirements for processing accuracy are relatively low, which can reduce material costs and processing costs and improve stability during use.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the bearing assembly 140 includes a bearing seat 142 connected to the body 110, and a first bearing 144 and a second bearing 146 spaced apart in the bearing seat 142, wherein the outer rings of the first bearing 144 and the second bearing 146 are respectively connected to the bearing seat 142, and the inner rings of the first bearing 144 and the second bearing 146 are respectively connected to the first connecting section 122, and the annular retaining protrusion 126 or the second connecting section 124 is abutted against the inner ring of the first bearing 144.

[0031] Specifically, by arranging the first bearing 144 and the second bearing 146 at intervals in the bearing seat 142, the rotating shaft 120 can be supported in a dispersed manner, reducing the probability of the bearing bending under force, which is conducive to ensuring the coaxiality of the rotating shaft 120 during rotation. In addition, by the annular cam 126 or the second connecting section 124 abutting against the inner ring of the first bearing 144, the rotating shaft 120 can be limited by the first bearing 144, thereby ensuring the stability of the rotating shaft 120 at the current position.

[0032] In an optional embodiment of the present application, the bearing seat 142 includes a seat body 1422 and a through hole 1424 arranged in the seat body 1422, the first bearing 144 and the second bearing 146 are respectively arranged at both ends of the through hole 1424, and a spacer sleeve is arranged between the first bearing 144 and the second bearing 146.

[0033] By adopting the above method, the relative position between the first bearing 144 and the second bearing 146 is limited by the spacer sleeve to ensure the stability of the relative position of the first bearing 144 and the second bearing 146. In this way, when the axial movement of the rotating shaft 120 is limited by the first bearing 144, the limitation of the rotating shaft 120 due to the positional misalignment of the first bearing 144 is avoided, which is conducive to ensuring stability during use.

[0034] In another optional embodiment of the present application, Figure 4 and Figure 6 As shown, the bearing seat 142 includes a seat body 1422 and a through hole 1424 arranged in the seat body 1422. Receiving grooves are respectively arranged at both ends of the through hole 1424. The receiving grooves are arranged concentrically with the through hole 1424. The first bearing 144 and the second bearing 146 are respectively clamped in the receiving grooves.

[0035] Specifically, by providing accommodating grooves at both ends of the through hole 1424, the first bearing 144 and the second bearing 146 can be respectively clamped in the accommodating grooves when connected to the bearing seat 142, so as to limit the first bearing 144 and the second bearing 146 through the accommodating grooves, thereby ensuring the stability of the positional relationship between the first bearing 144 and the second bearing 146 relative to the bearing seat 142. At this time, when the axial movement of the rotating shaft 120 is limited by the first bearing 144, the positional misalignment of the first bearing 144 can avoid affecting the limiting of the rotating shaft 120, which is conducive to ensuring stability during use.

[0036] like Figure 3 As shown, when the second connecting section 124 abuts against the inner ring of the first bearing 144 , an annular groove 127 is formed at one end of the first connecting section 122 facing the second connecting section 124 .

[0037] By adopting the above method, when the second connecting section 124 cooperates with the first bearing 144, in order to avoid the situation where the diameter of the rotating shaft 120 changes when the rotating shaft 120 is used as a stepped shaft, the second connecting section 124 cannot cooperate well with the first bearing 144 due to processing and manufacturing limitations. Therefore, an annular groove 127 is provided to modify the end face of the second connecting section 124, thereby ensuring a better fit and improving stability during use.

[0038] Please refer to Figure 3 and Figure 6 A limiting groove 128 is provided on the second connecting section 124 , and the rotating disk 130 is provided at the limiting groove 128 and is integrally injection-molded with the second connecting section 124 .

[0039] Specifically, by setting a limiting groove 128 on the second connecting section 124, when the turntable 130 and the second connecting section 124 are integrally injection molded, a limiting protrusion 132 can be formed at the corresponding position of the turntable 130 and the limiting groove 128, and better cooperate with the rotating shaft 120 to prevent the turntable 130 and the rotating shaft 120 from loosening.

[0040] like Figure 5 As shown, the turntable 130 includes a disk body 134 and a connecting portion 135 disposed on the disk body 134 , and the turntable 130 is connected to the second connecting section 124 via the connecting portion 135 .

[0041] Specifically, the connection portion 135 is located at the center of the disk body 134, and plays a role in strengthening the connection strength of the connection between the disk body 134 and the rotating shaft 120. Among them, the limiting protrusion 132 is formed on the inner circle of the connection portion 135 to cooperate with the rotating shaft 120 more stably.

[0042] Please continue to refer to Figure 5 The outer ring of the disc body 134 is provided with a flange 136 , and the flange 136 is folded toward one side of the body 110 .

[0043] By adopting the above-mentioned form, the gap between the outer ring of the turntable 130 and the body 110 can be made smaller, so as to prevent other debris from being mixed between the body 110 and the turntable 130, which is conducive to ensuring stability during use. At the same time, by setting the flange 136 on the outer ring of the disk body 134, it is conducive to improving the structural strength of the disk body 134 and preventing the disk body 134 from being torn from the edge due to force.

[0044] Optionally, a plurality of reinforcing ribs 137 are provided on one side of the disk body 134 facing the machine body 110, and the reinforcing ribs 137 are connected between the disk body 134 and the connecting portion 135. In this way, not only the connection strength between the disk body 134 and the rotating shaft 120 is improved through the connecting portion 135, but also the overall structural strength of the disk body 134 is enhanced, so as to avoid accidental breakage and damage of the disk body 134, thereby ensuring the reliability of use.

[0045] The utility model also discloses a vinyl record device, comprising the turntable module 100 in the aforementioned embodiment. The vinyl record device comprises the same structure and beneficial effects as the turntable module 100 in the aforementioned embodiment. The structure and beneficial effects of the turntable module 100 have been described in detail in the aforementioned embodiment, and will not be repeated here.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A turntable module, characterized in that: include: A machine body, a rotating shaft and a rotating disk, wherein the rotating shaft is rotatably connected to the machine body through a bearing assembly, the rotating shaft is fixedly connected to the rotating disk, and a preset distance is provided between the rotating disk and the machine body, the rotating shaft comprises a first connecting section and a second connecting section connected in sequence, the first connecting section is connected to the bearing assembly, and the second connecting section is connected to the rotating disk; Among them, the diameter of the first connecting section is smaller than the diameter of the second connecting section, so that the second connecting section is clamped and limited with the bearing assembly toward the end of the first connecting section, or, an annular clamping protrusion is provided at the connection between the first connecting section and the second connecting section, so that the rotating shaft is clamped and limited with the bearing assembly through the annular clamping protrusion.

2. The turntable module according to claim 1, characterized in that: The bearing assembly includes a bearing seat connected to the machine body, and a first bearing and a second bearing spaced apart in the bearing seat, wherein the outer rings of the first bearing and the second bearing are respectively connected to the bearing seat, the inner rings of the first bearing and the second bearing are respectively connected to the first connecting section, and the annular cam or the second connecting section abuts against the inner ring of the first bearing.

3. The turntable module according to claim 2, characterized in that: The bearing seat includes a seat body and a through hole arranged in the seat body. The first bearing and the second bearing are respectively arranged at two ends of the through hole, and a spacer sleeve is arranged between the first bearing and the second bearing.

4. The turntable module according to claim 2, characterized in that: The bearing seat includes a seat body and a through hole arranged in the seat body, and receiving grooves are respectively arranged at both ends of the through hole. The receiving grooves are arranged concentrically with the through hole, and the first bearing and the second bearing are respectively clamped in the receiving grooves.

5. The turntable module according to claim 2, characterized in that: When the second connecting section abuts against the inner ring of the first bearing, an annular groove is formed at one end of the first connecting section facing the second connecting section.

6. The turntable module according to any one of claims 1 to 5, characterized in that: The second connecting section is provided with a limiting groove, the rotating disk is arranged at the limiting groove, and is integrally formed with the second connecting section by injection molding.

7. The turntable module according to claim 6, characterized in that: The turntable includes a turntable body and a connecting portion arranged on the turntable body, and the turntable is connected to the second connecting section via the connecting portion.

8. The turntable module according to claim 7, characterized in that: The outer ring of the disc body is provided with a flange, and the flange is folded toward one side of the body.

9. The turntable module according to claim 7, characterized in that: A plurality of reinforcing ribs are arranged on one side of the disc body facing the machine body, and the reinforcing ribs are connected between the disc body and the connecting portion.

10. A vinyl record device, characterized in that: A turntable module comprising any one of claims 1-9.

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