Roller structure and mouse

Abstract

The utility model relates to the technical field of mice, and provides an idler wheel structure and a mouse, the idler wheel structure comprises a middle shaft assembly, and a metal shaft is arranged at the axis of the middle shaft assembly in a penetrating mode; a first through containing hole is formed in the axis of the roller body, the roller body is arranged on the outer circle face of the middle shaft assembly in a sleeving mode through the first containing hole, and an annular containing groove is formed in the periphery of the roller body; the counterweight ring is arranged in the annular accommodating groove in a matching manner; and the flexible material ring is arranged on the outer circular surface of the counterweight ring in a sleeving manner and is arranged in the annular accommodating groove. According to the technical scheme, the weight of the roller body is increased by arranging the balancing weight on the roller body, the technical problem that the roller body rolls unsmoothly due to the fact that the roller body is too light or the technical problem that the roller body rolls fast due to the fact that the roller body is too heavy, and the expected rolling stroke is generated is solved, and the magnetic damping effect provided by the middle shaft assembly is combined. And the control accuracy and the hand feeling of the roller body are effectively improved.

Description

Technical Field

[0001] The present application relates to the field of mouse technology, and in particular to a scroll wheel structure and a mouse. Background Art

[0002] A mouse is a computer input device used to control the movement and click operation of the cursor on the computer screen. The cursor position in the computer is controlled by the movement of the hand. The mouse is widely used in personal computers, laptops and other computer devices, and is one of the important tools in human-computer interaction.

[0003] The mouse wheel body is a wheel body that can detect the scrolling direction and speed. The traditional mouse wheel body is usually composed of a wheel axle and an integrally formed wheel body, and then the outer surface of the wheel rim of the wheel body is covered with a rubber sleeve, and the two ends of the wheel axle are arranged on the encoder and the touch switch. Among them, the wheel body is usually set to be a pure metal material or a pure plastic material. However, the main body of the wheel body made of pure plastic material is light in texture, and there will be a sense of jumping when rolling the wheel body, and the rolling is not smooth, and it is easy to cause the wheel body to swing left and right when rolling the wheel body quickly; the main body of the wheel body made of pure metal material is heavy in texture, and it is easy to exceed the expected rolling stroke when rolling the wheel body quickly, resulting in inaccurate control and poor feel.

[0004] Therefore, the above-mentioned technical defects need to be changed urgently. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a scroll wheel structure and a mouse, which aims to increase the rolling texture of the scroll wheel body, avoid the technical problems of uneven rolling due to the scroll wheel body being too light, or the scroll wheel body being too heavy causing an unexpected rolling stroke when the scroll wheel body is rolled quickly, and improve the control accuracy and feel of the scroll wheel body.

[0006] In order to solve the above technical problems, the first aspect of the embodiment of the present application provides a roller structure, including:

[0007] A middle shaft assembly, wherein a metal shaft is passed through the axis center of the middle shaft assembly;

[0008] A roller body, wherein a through first receiving hole is provided at the axis of the roller body, the roller body is sleeved on the outer circumferential surface of the middle shaft assembly through the first receiving hole, and an annular receiving groove is provided on the outer periphery of the roller body;

[0009] A counterweight ring, the counterweight ring is matched and arranged in the annular receiving groove;

[0010] And a soft material ring, the soft material ring is arranged on the outer circumferential surface of the counterweight ring and is arranged in the annular accommodating groove.

[0011] In a possible implementation, the roller body includes a first limit cover and a second limit cover respectively disposed at two ends in the axial direction, and the first limit cover and the second limit cover are spliced ​​to form an annular accommodating groove;

[0012] The second limiting cover comprises an integrally formed roller and a retaining ring, the retaining ring is arranged at one end of the roller, and the first limiting cover is detachably connected to an end of the roller away from the retaining ring.

[0013] In one possible implementation, a first step is provided on the end of the drum away from the retaining ring, and a second step connected to the first step is provided on the first limit cover at a position corresponding to the first step, the first step matches the second step, and the first limit cover and the second limit cover are detachably connected.

[0014] In one possible implementation, a first bevel is provided at a port of the second step away from the first limit cover, the first bevel faces the counterweight ring; a second bevel is provided at a port of the drum close to the first step, the second bevel faces the counterweight ring.

[0015] In one possible implementation, at least two limiting grooves are provided on the first step, and the two limiting grooves are arranged opposite to each other; a limiting protrusion is provided on the second step at a position corresponding to the roller; the limiting groove matches the limiting protrusion, and the limiting groove and the limiting protrusion cooperate to form a snap-fit ​​structure.

[0016] In a possible implementation, the central axis assembly includes a magnetic inner axis and a magnetic outer axis, the magnetic outer axis is provided with a second receiving hole along the axis, the second receiving hole passes through one end of the magnetic outer axis, and the metal axis is passed through the bottom of the second receiving hole along the axis of the magnetic outer axis; the magnetic inner axis is rotatably connected to the second receiving hole through the metal axis, so that the magnetic outer axis rotates around the outer circumference of the magnetic inner axis;

[0017] The surface of the magnetic inner shaft is uniformly arrayed with first magnetic teeth, the inner wall of the second accommodating hole is provided with second magnetic teeth corresponding to the first magnetic teeth, and light holes are provided between adjacent second magnetic teeth. The light holes are provided corresponding to the first magnetic teeth and pass through the magnetic outer shaft.

[0018] In one possible implementation, at least one limiting notch is provided on the first step, and a third limiting step is provided on the outer wall of the magnetic outer shaft at a position corresponding to the limiting notch, the limiting notch matches the third limiting step, and the ends of the roller body and the magnetic outer shaft are both in the same plane.

[0019] In a possible implementation, one end of the metal shaft passes through the bottom of the second accommodating hole, the metal shaft and the magnetic inner shaft are injection-molded as one, and a clamping block is provided on one side of the magnetic inner shaft.

[0020] In one possible implementation, the counterweight ring is configured as a metal material ring, the roller body, the first limit cover and the second limit cover are all configured as plastic material structures, the soft material ring is configured as a rubber material structure, the outer surface of the soft material ring is provided with anti-slip texture, and the first limit cover and the second limit cover are both in contact with the two side walls of the soft material ring.

[0021] A second aspect of the present application provides a mouse, comprising a scroll wheel structure as described in any embodiment of the first aspect.

[0022] Compared with the prior art, the present application provides a scroll wheel structure and a mouse. The present application scheme increases the weight of the scroll wheel body by setting a counterweight on the scroll wheel body, so that the mass of the mouse scroll wheel body is moderate, avoiding the scroll wheel body being too light or too heavy, avoiding the technical problem that the scroll wheel body is not smooth due to being too light, or the scroll wheel body is too heavy, causing the scroll wheel body to roll faster than expected. At the same time, the soft material ring set on the counterweight ring can also improve the user's feel when rolling the scroll wheel body. In addition, combined with the magnetic damping effect provided by the central axis assembly, the control accuracy and feel of the scroll wheel body are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 is a schematic diagram of the overall structure of a roller structure provided in this embodiment;

[0025] Figure 2 is another overall structural schematic diagram of a roller structure provided in this embodiment;

[0026] Figure 3 is a partial structural schematic diagram of a roller structure provided in this embodiment;

[0027] Figure 4 is an exploded schematic diagram of a roller structure provided in this embodiment;

[0028] Figure 5 is another exploded schematic diagram of a roller structure provided in this embodiment;

[0029] Figure 6 is a cross-sectional view of a roller structure provided in this embodiment;

[0030] Figure 7 yes Figure 6A magnified schematic diagram of the part marked with A.

[0031] In the figure: 1. central axis assembly; 11. magnetic inner axis; 111. first magnetic tooth; 112. clamping block; 12. magnetic outer axis; 121. second receiving hole; 122. second magnetic tooth; 123. third limiting step; 124. light-through hole; 2. roller body; 21. first receiving hole; 22. annular receiving groove; 23. first limiting cover; 231. second step; 2311. first chamfered portion; 232. limiting protrusion; 24. second limiting cover; 241. roller; 242. retaining ring; 25. first step; 251. limiting groove; 252. limiting notch; 253. second chamfered portion; 3. counterweight ring; 4. soft material ring; 41. anti-slip texture; 5. metal axis. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 this application can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0036] On the one hand, the utility model provides Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a scroll wheel structure can be installed on a mouse and is an important component of the mouse. It controls the scrolling and switching of pages on a computer screen by rotating. The main structure includes: a central axis component 1, a roller body 2, a weight ring 3 and a soft material ring 4. A metal shaft 5 is penetrated at the axis of the central axis component 1; a through first receiving hole 21 is opened at the axis of the roller body 2, and the inner diameter of the first receiving hole 21 is the same as the outer diameter of the central axis component 1, so that the two are matched. The roller body 2 is sleeved on the outer circumference of the central axis component 1 through the first receiving hole 21, and an annular receiving groove 22 is provided on the outer circumference of the roller body 2; the weight ring 3 matches the annular receiving groove 22, and the weight ring 3 is sleeved in the annular receiving groove 22; the soft material ring 4 is sleeved on the outer circumference of the weight ring 3 and is provided in the annular receiving groove 22.

[0037] It should be noted that the main body of the conventional mouse wheel body 2 is usually made of pure metal or pure plastic. However, the main body of the wheel body 2 made of pure plastic is relatively light, and there is a sense of jumping when the wheel body 2 is rolled, and the rolling is not smooth, and the wheel body 2 is easily caused to swing left and right when the wheel body 2 is rolled quickly; the main body of the wheel body 2 made of pure metal is relatively heavy, and the rolling stroke is easily exceeded when the wheel body 2 is rolled quickly, resulting in inaccurate control and poor feel.

[0038] The present application scheme increases the weight of the roller body 2 by arranging a counterweight on the roller body 2, so that the mass of the mouse roller body 2 is moderate, and the roller body 2 is prevented from being too light or too heavy, and the roller body 2 is prevented from rolling unevenly due to being too light, or the roller body 2 is prevented from rolling too fast due to being too heavy, causing the roller body 2 to roll beyond the expected rolling stroke. At the same time, the soft material ring 4 set on the counterweight ring 3 can also improve the user's feel when rolling the roller body 2. In addition, combined with the magnetic damping effect provided by the middle shaft assembly 1, the control accuracy and feel of the roller body 2 are effectively improved.

[0039] Further, such as Figure 4 , Figure 5 , Figure 6As shown, the roller body 2 includes a first limiting cover 23 and a second limiting cover 24 respectively arranged at two ends in the axial direction, and the first limiting cover 23 and the second limiting cover 24 are spliced ​​to form an annular accommodating groove 22; wherein the second limiting cover 24 includes an integrally formed roller 241 and a retaining ring 242, the retaining ring 242 is arranged at one end of the roller 241, and the first limiting cover 23 is detachably connected to the roller 241 and the end away from the retaining ring 242. Specifically, the first accommodating hole 21 passes through the first limiting cover 23, the roller 241 and the retaining ring 242. The first accommodating hole 21 extends along the axis of the roller 241.

[0040] During the actual assembly, the counterweight ring 3 is sleeved on the outer circumferential surface of the drum 241, and then the soft material ring 4 is sleeved on the outer circumferential surface of the counterweight ring 3, and then the central axis assembly 1 is assembled to the first accommodating hole 21 on the drum 241; finally, the first limit cover 23 is assembled so that it can abut against the central axis assembly 1, the counterweight ring 3 and the soft material ring 4 to prevent the structural components from loosening. After the first limit cover 23 is assembled on the drum 241, the two need to be kept tightly connected. Therefore, the two can be connected by a snap connection, bolt connection or other fixing methods. In order to improve the efficiency of assembly, the first limit cover 23 and the drum 241 are connected by a snap connection in this embodiment.

[0041] It should be noted that in some embodiments, the first limiting cover 23 and the second limiting cover 24 are configured as a plastic material structure, and the outer side walls of the first limiting cover 23 and the second limiting cover 24 can be sprayed to improve the overall appearance of the roller body 2. The first limiting cover 23 and the second limiting cover 24 are detachably connected to facilitate production and assembly. In the first embodiment, the first limiting cover 23 is detachably connected to the end of the roller 241 away from the retaining ring 242, and the roller 241 and the retaining ring 242 are integrally formed.

[0042] Further, such as Figure 4 , Figure 5 As shown, a first step 25 is provided at one end of the roller away from the retaining ring, and a second step 231 is provided on the first limiting cover 23 at a position corresponding to the first step 25, the first step 25 matches the second step 231, and the first limiting cover 23 is detachably connected to the first limiting cover 23.

[0043] It is understandable that the first step 25 matches the second step 231 so that the roller 241 and the first limiting cover 23 can be tightly connected to avoid looseness between the roller 241 and the first limiting cover 23 that affects the texture of the mouse wheel body 2.

[0044] Further, such as Figure 5 , Figure 6 , Figure 7As shown, the second step 231 is provided with a first chamfered portion 2311 ( Figure 7 As shown), the first chamfered portion 2311 faces the counterweight ring 3; a second chamfered portion 253 ( Figure 7 As shown), the second chamfered portion 253 faces the counterweight ring 3.

[0045] It is understandable that, during the process of assembling the counterweight ring 3 onto the drum 241 , the second beveled portion 253 on the first step 25 can help the counterweight ring 3 to be aligned, so that the counterweight ring 3 can be more smoothly inserted into the outer circumferential surface of the drum 241 .

[0046] Similarly, in the process of assembling the first limit cover 23 onto the roller 241, the first beveled portion 2311 on the second step 231 can help the second step 231 to align, so that the second step 231 can be more smoothly inserted into the through hole of the counterweight ring 3, and the first limit cover 23 can be more smoothly plugged into the roller 241.

[0047] Further, such as Figure 4 , Figure 5 As shown, at least two limiting grooves 251 are provided on the first step 25, and the two limiting grooves 251 are arranged opposite to each other; a limiting protrusion 232 is provided on the second step 231 at a position corresponding to the roller; the limiting groove 251 matches the limiting protrusion 232, and the limiting groove 251 and the limiting protrusion 232 cooperate to form a clamping structure. So that the first limiting cover 23 can be clamped on one end of the roller 241, and during assembly, it is only necessary to align the second step 231 on the first limiting cover 23 with the first step 25 on the roller 241 and then push it in, and the assembly can be completed. The assembly efficiency is effectively improved.

[0048] Further, such as Figure 4 , Figure 5 As shown, the central axis assembly 1 includes a magnetic inner axis 11 and a magnetic outer axis 12. The magnetic outer axis 12 is provided with a second accommodating hole 121 along the axis. The second accommodating hole 121 passes through one end of the magnetic outer axis 12. The metal axis 5 is passed through the bottom of the second accommodating hole 121 along the axis of the magnetic outer axis 12. The magnetic inner axis 11 is rotatably connected to the second accommodating hole 121 through the metal axis 5, so that the magnetic outer axis 12 rotates around the outer periphery of the magnetic inner axis 11.

[0049] The surface of the magnetic inner shaft 11 is uniformly arrayed with first magnetic teeth 111, and the inner side wall of the second accommodating hole 121 is provided with second magnetic teeth 122 corresponding to the first magnetic teeth 111, and a light hole 124 is provided between adjacent second magnetic teeth 122, and the light hole 124 is provided corresponding to the first magnetic teeth 111, and the light hole 124 passes through the magnetic outer shaft 12. Specifically, the light hole 124 is elliptical, and the light hole 124 is stretched in the radial direction. In the specific implementation, the mouse is provided with an optical transmitting terminal and an optical receiving terminal that are relatively arranged, and the light beam emitted by the optical transmitting terminal is irradiated onto the optical receiving terminal through the light hole 124. Since the magnetic outer shaft 12 rotates around the magnetic inner shaft 11, when the first magnetic teeth 111 correspond to the second magnetic teeth 122 one by one, the light hole 124 can pass the largest light, and when the first magnetic teeth 111 and the second magnetic teeth 122 are completely staggered, the light passing through the light hole 124 is the smallest. In this way, the rolling control effect of the roller body 2 is achieved.

[0050] It should be noted that both the magnetic inner shaft 11 and the magnetic outer shaft 12 have magnetic fields, the first magnetic teeth 111 on the magnetic inner shaft 11 protrude toward the direction of the magnetic outer shaft 12, and the second magnetic teeth 122 on the inner wall of the magnetic outer shaft 12 protrude toward the direction of the magnetic inner shaft 11. The first magnetic teeth 111 and the second magnetic teeth 122 are arranged in a uniform array, and correspond one to one in the natural state. During the rotation of the roller body 2, the roller body 2 drives the magnetic outer shaft 12 to rotate. When the first magnetic teeth 111 correspond to the second magnetic teeth 122, the suction force between the two is the strongest. As the first magnetic teeth 111 and the second magnetic teeth 122 are offset, the suction force gradually weakens, and then the suction force increases again, so that a sense of paragraph can be generated during use. Since there is no mechanical contact between the first magnetic teeth 111 and the second magnetic teeth 122, the sense of paragraph is achieved entirely by the suction force between them, so that it has a smoothness that the mechanical encoder does not have and is not too mechanical. Combined with the counterweight effect of the counterweight ring 3, the texture of the roller body 2 when rotating is effectively improved.

[0051] Further, such as Figure 4 , Figure 5 As shown, at least one limiting notch 252 is provided on the first step 25, and the limiting notch 252 is used to assemble the magnetic outer shaft 12. The outer wall of the magnetic outer shaft 12 is provided with a third limiting step 123 at a position corresponding to the limiting notch 252. The limiting notch 252 matches the third limiting step 123 to prevent the magnetic outer shaft 12 from sliding and affecting the texture between the roller body 2. In addition, the aperture size of the first accommodating hole 21 is the same as the outer diameter size of the magnetic outer shaft 12, so that the magnetic outer shaft 12 is matched and connected with the roller body 2.

[0052] The ends of the roller body 2 and the magnetic outer shaft 12 are both in the same plane, that is, the end of the magnetic outer shaft 12 close to the first step 25 and the first step 25 protruding from the roller body 2 are in the same plane. When the first limiting cover 23 is assembled, the first limiting cover 23 can abut against the magnetic outer shaft 12 and the first step 25 at the same time, so that the various structural components of the mouse roller body 2 are tightly connected to avoid looseness between the structural components that affects the texture.

[0053] Further, such as Figure 4 , Figure 5 As shown, one end of the metal shaft 5 passes through the bottom of the second receiving hole 121, the metal shaft 5 and the magnetic inner shaft 11 are injection molded as one, and a clamping block 112 is provided on one side of the magnetic inner shaft 11. The part of the metal shaft 5 protruding from the magnetic outer shaft 12 and the clamping block 112 respectively form the connection point between the roller body 2 and the mouse.

[0054] Further, such as Figure 6 As shown, the weight ring 3 is configured as a metal material ring, which has a better weight balancing effect. In this embodiment, metal is preferably used as the structural material of the weight ring 3. The roller body 2, the first limit cover 23 and the second limit cover 24 are all configured as plastic material structures, which are easy to shape and have low cost. The soft material ring 4 is configured as a rubber material structure, which can effectively improve the anti-slip performance of the soft material ring 4. Rubber is wear-resistant and has good softness. The outer surface of the soft material ring 4 is provided with anti-slip texture 41, and the first limit cover 23 and the second limit cover 24 are both in contact with the two side walls of the soft material ring 4. It can be understood that the anti-slip texture 41 can increase the friction between the user's fingers and the leather ring to prevent slipping.

[0055] A second aspect of the present application provides a mouse, comprising a roller body 2 structure as described in any embodiment of the first aspect.

[0056] In summary, the present application provides a roller body 2 structure and a mouse. The present application scheme increases the weight of the roller body 2 by setting a counterweight on the roller body 2, so that the mass of the mouse roller body 2 is moderate, avoiding the roller body 2 being too light or too heavy, avoiding the roller body 2 rolling unevenly due to being too light, or the roller body 2 rolling fast due to being too heavy, causing the roller body 2 to roll beyond the expected rolling stroke. At the same time, the soft material ring 4 set on the counterweight ring 3 can also improve the user's feel when rolling the roller body 2. In addition, combined with the magnetic damping effect provided by the middle shaft assembly 1, the control accuracy and feel of the roller body 2 are effectively improved.

[0057] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A roller structure, characterized in that: include: A central axis component, wherein a metal axis is provided at the axis center of the central axis component; A roller body, wherein a through first receiving hole is provided at the axis of the roller body, the roller body is sleeved on the outer circumferential surface of the middle shaft assembly through the first receiving hole, and an annular receiving groove is provided on the outer periphery of the roller body; A counterweight ring, the counterweight ring being matched and arranged in the annular receiving groove; And a soft material ring, the soft material ring is sleeved on the outer circumferential surface of the counterweight ring and is arranged in the annular accommodating groove.

2. A roller structure according to claim 1, characterized in that: The roller body comprises a first limit cover and a second limit cover respectively arranged at two ends in the axial direction, and the first limit cover and the second limit cover are spliced ​​to form the annular receiving groove; Wherein, the second limiting cover comprises an integrally formed roller and a retaining ring, the retaining ring is arranged at one end of the roller, and the first limiting cover is detachably connected to an end of the roller away from the retaining ring.

3. A roller structure according to claim 2, characterized in that: A first step is arranged on one end of the roller away from the retaining ring, and a second step is arranged on the first limiting cover at a position corresponding to the first step and connected with the first step, the first step matches the second step, and the first limiting cover and the second limiting cover are detachably connected.

4. A roller structure according to claim 3, characterized in that: A first chamfered portion is formed at a port of the second step away from the first limiting cover, and the first chamfered portion faces the counterweight ring; a second chamfered portion is formed at a port of the drum close to the first step, and the second chamfered portion faces the counterweight ring.

5. The roller structure according to claim 3, characterized in that: At least two limiting grooves are provided on the first step, and the two limiting grooves are arranged opposite to each other; a limiting protrusion is provided on the second step corresponding to the position of the roller; the limiting groove matches the limiting protrusion, and the limiting groove and the limiting protrusion cooperate to form a clamping structure.

6. A roller structure according to claim 3, characterized in that: The central axis assembly comprises a magnetic inner axis and a magnetic outer axis, the magnetic outer axis is provided with a second receiving hole along the axis, the second receiving hole passes through one end of the magnetic outer axis, the metal axis is passed through the bottom of the second receiving hole along the axis of the magnetic outer axis; the magnetic inner axis is rotatably connected in the second receiving hole through the metal axis, so that the magnetic outer axis rotates around the outer circumference of the magnetic inner axis; The surface of the magnetic inner shaft is uniformly arrayed with first magnetic teeth, the inner wall of the second accommodating hole is provided with second magnetic teeth corresponding to the first magnetic teeth, and light holes are provided between adjacent second magnetic teeth. The light holes are provided corresponding to the first magnetic teeth, and the light holes pass through the magnetic outer shaft.

7. A roller structure according to claim 6, characterized in that: At least one limiting notch is provided on the first step, and a third limiting step is provided on the outer wall of the magnetic outer shaft at a position corresponding to the limiting notch, the limiting notch matches the third limiting step, and the ends of the roller body and the magnetic outer shaft are both in the same plane.

8. The roller structure according to claim 6, characterized in that: One end of the metal shaft passes through the bottom of the second accommodating hole, the metal shaft and the magnetic inner shaft are injection-molded as one, and a clamping block is arranged on one side of the magnetic inner shaft.

9. The roller structure according to claim 2, characterized in that: The counterweight ring is configured as a metal material ring, the roller body, the first limit cover and the second limit cover are all configured as plastic material structures, the soft material ring is configured as a rubber material structure, the outer surface of the soft material ring is provided with anti-slip textures, and the first limit cover and the second limit cover are both in contact with the two side walls of the soft material ring.

10. A mouse, characterized in that: It comprises the roller structure described in any one of claims 1 to 9.

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