Double-bearing support system

Abstract

The utility model discloses a double-bearing-support system which comprises a center bearing assembly, a center shaft assembly, a ball assembly, metal bearing supports, POM bearing supports and a rope body, connecting sections are arranged at the two ends of a shaft body, the center of the shaft body is connected with the center bearing assembly in a sleeved mode, the metal bearing supports are attached to the two sides of the center bearing assembly, and the POM bearing supports are connected with the ball assembly in a sleeved mode. The metal bearing support is sleeved on the shaft body; according to the yo-yo ball, the metal bearing supports abut against the inner ring bodies and open the ball assemblies on the two sides, meanwhile, the POM bearing supports serve as movable parts of the metal bearing supports, and the metal bearing supports and the POM bearing supports are combined, so that the yo-yo ball has the stable axle distance and high concentricity of the metal bearing supports, and the function that the axle distance can be adjusted conveniently is achieved; and meanwhile, after assembly, the POM bearing support can provide strong recovery holding power for the yo-yo by virtue of the self-lubricating property of the material of the POM bearing support, and the activity of the POM bearing support lightly clamps a rope when the yo-yo is used for doing a fast-playing type entertainment, so that the entertainment is more easily completed, and the overall precision of the yo-yo is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of yo-yo support structures, in particular to a double-bearing support system. Background Art

[0002] Yo-yo consists of a spherical hard shell and an axis connected to its center. It is usually placed in the hand and the axis is rotated by the power of the wrist or arm to achieve various skills. It can not only improve hand-eye coordination, but also strengthen the exercise of arms and waist and abdomen, and also cultivate people's willpower and self-discipline.

[0003] In the field of professional fast-hitting yo-yos, there are currently two existing bearing support systems: metal bearing support system and POM bearing support system. The metal bearing support has high hardness, so the yo-yo using this structure has high concentricity and stable wheelbase. Its width will affect the recovery sensitivity of the yo-yo. Therefore, the yo-yo using the metal bearing support system rotates very stably, and when adjusting the wheelbase, it only needs to replace metal bearing supports of different heights. The POM bearing support system is made of POM, which has self-lubricating properties and can give the yo-yo a strong recovery grip. The yo-yo using POM bearing supports has a stronger rotation force than the metal bearing support product under the same serving force. At the same time, the ball can be easily retrieved in the hand when rotating slowly. Moreover, the POM bearing support is not fixed on the sphere and is mobile, which makes it easy for the yo-yo to complete fast-hitting moves.

[0004] The two existing bearing support systems can basically meet the daily use needs, but the existing metal bearing support yo-yos have the phenomenon of slipping due to the smooth surface of the metal support. When serving, the serving force of this type of product will be lost due to slipping, and it takes more rotational force to retrieve the ball; and the existing POM bearing support yo-yos cannot use the POM support to support the bearing to fix the wheelbase because the hardness of the POM support material is not strong enough, resulting in the yo-yo using the bearing support system can only rely on the center axis to determine the wheelbase. This design that is difficult to adjust the wheelbase has brought many inconveniences to professional players. At the same time, the concentricity of the yo-yo using the POM bearing support is lower than that of the metal support yo-yo; in the past POM bearing support yo-yo products, there are quite a few complex wheelbase adjustment structures designed to have the recovery grip of the POM bearing support, but these structures will affect the overall accuracy of the yo-yo;

[0005] Therefore, it is necessary to design a dual-bearing support system to combine the two existing solutions, so that the yo-yo has the stable wheelbase and high concentricity of the metal support structure, while being convenient for adjusting the wheelbase and other functions, and also making the yo-yo have the powerful recovery grip unique to the POM support yo-yo. Utility Model Content

[0006] The utility model aims to provide a dual-bearing support system to solve the problem that the existing yo-yo with metal bearing support has a slipping phenomenon due to the smooth surface of the metal support. When serving, the serving force of this type of product will be lost due to slipping, and more rotational force will be lost to retrieve the ball; and the existing POM bearing support yo-yo cannot use the POM support to support the bearing to fix the wheelbase because the hardness of the POM support material is not strong enough, resulting in the yo-yo using the bearing support system can only rely on the center axis to determine the wheelbase. This design that is difficult to adjust the wheelbase has brought many inconveniences to professional players. At the same time, the concentricity of the yo-yo using the POM bearing support will be lower than that of the metal support yo-yo; in the past POM bearing support yo-yo products, there are quite a few complex wheelbase adjustment structures designed to have the recovery grip of the POM bearing support, but these structures will affect the overall accuracy of the yo-yo.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a dual-bearing support system, including a central bearing assembly, a middle axis assembly, a spherical assembly, a metal bearing support, a POM bearing support and a rope body, wherein the middle axis assembly is composed of a shaft body and a connecting section, connecting sections are provided at both ends of the shaft body, a central bearing assembly is sleeved at the center of the shaft body, and metal bearing supports are fitted on both sides of the central bearing assembly, the metal bearing supports are sleeved on the shaft body, POM bearing supports are sleeved between the metal bearing supports, the POM bearing support is sleeved on the central bearing assembly, and a rope body is cooperatively wrapped around the central bearing assembly.

[0008] As a further technical solution of the utility model, the metal bearing support and the POM bearing support are both rotatably connected in the inner notch of the ball assembly, and the ball assembly consists of an inner notch, an outer notch, a connecting ring, a ball bracket, an annular groove and a mounting groove.

[0009] As a further technical solution of the utility model, the inner notch is opened on one side of the ball bracket, and the outer notch, the annular groove, the mounting groove and the ball cover are respectively opened on the other side of the ball bracket.

[0010] As a further technical solution of the utility model, a ball cover is fitted in the installation groove.

[0011] As a further technical solution of the utility model, a connecting ring is sleeved in the outer notch, and the connecting ring is sleeved on the connecting section.

[0012] As a further technical solution of the utility model, the central bearing assembly is composed of an inner ring body, an outer ring body and balls, and the inner ring body is tightly pressed between the metal bearing supports.

[0013] As a further technical solution of the utility model, balls are rollingly connected in the grooves provided on the inner ring body, and the balls are rollingly connected to the inner wall of the outer ring body.

[0014] The utility model provides a double-bearing support system, which has the advantages that: the inner ring of the central bearing assembly is supported by the metal bearing support and the ball assemblies on both sides of the yo-yo are spread open; during assembly, the hole of the POM bearing support is penetrated by the metal bearing support, and the movable part of the metal bearing support can move around the metal bearing support, thereby combining the metal bearing support and the POM bearing support, eliminating the disadvantages of the metal bearing support yo-yo and the POM bearing support yo-yo, so that the yo-yo has a stable wheelbase and high concentricity of the metal bearing support structure, and has the function of conveniently adjusting the wheelbase; at the same time, after assembly, the POM bearing support can provide a strong recovery grip for the yo-yo by virtue of the self-lubricating property of its material, and its movable performance can lightly clamp the rope when the yo-yo performs a fast-hitting move, making the move easier to complete, thereby ensuring the overall accuracy of the yo-yo. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] Figure 4 A schematic diagram of the structure of a metal bearing support and a POM bearing support provided by the utility model;

[0020] Figure 5 This is a schematic structural diagram of another metal bearing support and a POM bearing support provided by the utility model.

[0021] In the figure: 1. center bearing assembly; 2. middle shaft assembly; 3. ball assembly; 4. metal bearing support; 5. POM bearing support; 6. rope body; 11. inner ring body; 12. outer ring body; 13. ball; 21. shaft body; 22. connecting section; 31. inner notch; 32. outer notch; 33. connecting ring; 34. ball bracket; 35. annular groove; 36. mounting groove; 37. ball cover. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please see attached Figure 1 -Attached Figure 5The utility model provides an embodiment: a double bearing support system, including a central bearing assembly 1, a middle shaft assembly 2, a ball assembly 3, a metal bearing support 4, a POM bearing support 5 and a rope body 6, the middle shaft assembly 2 is composed of a shaft body 21 and a connecting section 22, both ends of the shaft body 21 are provided with connecting sections 22, the center of the shaft body 21 is sleeved with the central bearing assembly 1, and both sides of the central bearing assembly 1 are fitted with metal bearing supports 4, the metal bearing supports 4 are sleeved on the shaft body 21, and POM bearing supports 4 are sleeved between the metal bearing supports 4. The M bearing support 5 and the POM bearing support 5 are sleeved on the central bearing assembly 1, and the central bearing assembly 1 is matched with a rope body 6; the metal bearing support 4 and the POM bearing support 5 are both rotatably connected to the inner notch 31 in the ball assembly 3, and the ball assembly 3 is composed of an inner notch 31, an outer notch 32, a connecting ring 33, a ball bracket 34, an annular groove 35 and an installation groove 36; the inner notch 31 is opened on one side of the ball bracket 34, and the outer notch 32, the annular groove 35, the installation groove 36 are respectively opened on the other side of the ball bracket 34. Groove 36 and ball cover 37; the ball cover 37 is fitted in the mounting groove 36; the connecting ring 33 is fitted in the outer groove 32, and the connecting ring 33 is fitted on the connecting section 22; the central bearing assembly 1 is composed of an inner ring body 11, an outer ring body 12 and a ball 13, and the inner ring body 11 is tightly pressed between the metal bearing brackets 4; the ball 13 is rollingly connected in the groove opened on the inner ring body 11, and the ball 13 is rollingly connected to the inner wall of the outer ring body 12; the central axis assembly 2 is used as the rotation center of the yo-yo to support the ball assembly 3, the metal bearing The support 4 and the POM bearing support 5, the ball cover 37 is sleeved and fixed in the mounting groove 36 on the ball support 34 to increase the grip of the yo-yo in the hand. The main function of the central bearing assembly 1 is to make the yo-yo rotate more smoothly. During assembly, the middle hole of the central bearing assembly 1 is passed through by the shaft body 21. The central bearing assembly 1 is fixed by the metal bearing supports 4 on both sides. The rope body 6 is the connecting part between the yo-yo and the finger. The rope loop at one end of the rope body 6 is sleeved on the central bearing assembly 1, and the rope loop at the other end of the rope body 6 is sleeved on the finger to perform corresponding operations;

[0025] Specifically, when in use, the inner ring body 11 of the central bearing assembly 1 is supported by the metal bearing support 4 and the ball assemblies 3 on both sides of the yo-yo are spread open. During assembly, the hole of the POM bearing support 5 is passed through by the metal bearing support 4, which is a movable part of the metal bearing support 4 and can move around the metal bearing support 4, thereby combining the metal bearing support 4 and the POM bearing support 5, eliminating the shortcomings of the yo-yo with the metal bearing support 4 and the yo-yo with the POM bearing support 5, so that the yo-yo has a stable wheelbase and high concentricity of the metal bearing support 4 structure, and has the function of conveniently adjusting the wheelbase; at the same time, after assembly, the POM bearing support 5 can provide a strong recovery grip for the yo-yo by virtue of the self-lubricating property of its material, and its movable performance can lightly clamp the rope when the yo-yo performs fast-hitting moves, making the moves easier to complete, thereby ensuring the overall accuracy of the yo-yo;

[0026] The utility model can replace the shapes of the metal bearing support 4 and the POM bearing support 5 with the attached ones according to the needs during use. Figure 4 or attached Figure 5 The assembly form in .

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A double bearing support system, comprising a central bearing assembly (1), a middle shaft assembly (2), a ball assembly (3), a metal bearing support (4), a POM bearing support (5) and a rope body (6), characterized in that: The central shaft assembly (2) is composed of a shaft body (21) and a connecting section (22). The connecting sections (22) are arranged at both ends of the shaft body (21). A central bearing assembly (1) is sleeved at the center of the shaft body (21), and metal bearing supports (4) are fitted on both sides of the central bearing assembly (1). The metal bearing supports (4) are sleeved on the shaft body (21), a POM bearing support (5) is sleeved between the metal bearing supports (4), the POM bearing support (5) is sleeved on the central bearing assembly (1), and a rope body (6) is matched and wound around the central bearing assembly (1).

2. A dual-bearing support system according to claim 1, characterized in that: The metal bearing support (4) and the POM bearing support (5) are both rotatably connected in an inner notch (31) in the ball assembly (3); the ball assembly (3) is composed of an inner notch (31), an outer notch (32), a connecting ring (33), a ball bracket (34), an annular groove (35) and a mounting groove (36).

3. A dual-bearing support system according to claim 2, characterized in that: The inner notch (31) is provided on one side of the ball bracket (34), and the other side of the ball bracket (34) is respectively provided with an outer notch (32), an annular groove (35), a mounting groove (36) and a ball cover (37).

4. A dual-bearing support system according to claim 3, characterized in that: A ball cover (37) is fitted and sleeved in the installation groove (36).

5. A dual-bearing support system according to claim 3, characterized in that: A connecting ring (33) is sleeved in the outer notch (32), and the connecting ring (33) is sleeved on the connecting section (22).

6. A dual-bearing support system according to claim 1, characterized in that: The central bearing assembly (1) is composed of an inner ring body (11), an outer ring body (12) and balls (13), and the inner ring body (11) is tightly pressed between metal bearing supports (4).

7. A dual-bearing support system according to claim 6, characterized in that: A ball (13) is rollingly connected in a groove formed on the inner ring body (11), and the ball (13) is rollingly connected to the inner wall of the outer ring body (12).

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