A trackball mounting structure for an input device
By introducing a damping component into the trackball mounting structure, the vertical friction force is used to limit the trackball's rotation, solving the wobbling problem during rapid left and right rotations, achieving smooth movement of the cursor and viewpoint, and improving the stability and experience of game operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李光伟
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
The existing trackball is prone to causing screen cursor and view shake when rotating rapidly left and right, making it difficult to achieve smooth left and right movement, which affects the stability and experience of game operation.
A damping component is used to limit the rotation of the trackball. By setting a damping component with greater friction in the vertical direction, the friction is smaller when rotating laterally, thus enabling the trackball to move smoothly.
When turning left or right quickly, the trackball rotates more smoothly, the cursor and view are stable and do not shake, improving the smoothness and stability of game operation.
Smart Images

Figure CN224519284U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of input device technology, and specifically to a trackball mounting structure for an input device. Background Technology
[0002] Computer input devices are ubiquitous in modern culture and are typically used to convert human-induced analog input (e.g., touch, click, movement, touch gestures, button presses, scroll wheel rotations, etc.) into digital signals for computer processing. Input devices can include any means capable of providing data and control signals to a computing system. Some non-limiting examples of input devices include computer mice, trackballs, keyboards, remote controls, game controllers, joysticks, etc. Some non-limiting examples of computing systems include desktop computers, laptops, tablets, smartphones, personal digital assistants (PDAs), wearable devices (e.g., smartwatches, glasses), etc.
[0003] The invention patent with publication number CN119473033A discloses a mouse with a trackball facing upwards. The cursor and field of view are controlled by moving the trackball by hand. The mechanical sensitivity of the trackball is the same in each direction. However, in the field of gaming, some games require rapid left and right head turning. When the ordinary trackball is turned left and right quickly, it will also rotate up and down. The cursor and field of view on the screen will wobble. It is difficult to achieve smooth left and right movement, which makes it difficult to control the rotation of the game view and easy to make mistakes. Improvement is needed.
[0004] Utility model patent application number 202521586827.5 discloses a mounting structure for a mouse trackball, including a trackball and a mounting base. The trackball is disposed in the mounting base, and bearing seats are provided at both ends of the mounting base. Bearing assemblies are inserted into the bearing seats. One side of the bearing assembly abuts against the trackball, and at least one side of the bearing assembly abuts against an elastic element. However, due to insufficient clamping force of the elastic element, the trackball is pressed down and pressed tightly against the mounting base, resulting in the trackball rotating unresponsively. Utility Model Content
[0005] To address the above problems, this utility model provides a trackball mounting structure for an input device, thereby solving one or more technical problems existing in the prior art and at least providing a beneficial option or creating conditions.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A trackball mounting structure for an input device includes a mounting base, wherein the mounting base has at least one clearance opening extending through its side wall in a first direction; The trackball is rotatably mounted within the mounting base; It also includes a damping assembly connected to the input device, which extends telescopically into the clearance opening to limit the rotation of the trackball.
[0007] Preferably, the damping assembly includes a bearing assembly, which includes an outer ring and an inner ring with external threads. The outer ring is threaded to the mouse, and the inner ring has a friction head that abuts against the trackball to limit the rotation of the trackball.
[0008] Preferably, the damping component includes a screw connected to the mouse and a bearing assembly located at one end of the screw. The bearing assembly is provided with a friction head that abuts against the trackball to limit the rotation of the trackball.
[0009] Preferably, the screw is fixedly connected to the mouse, and the bearing assembly is threadedly connected to the screw.
[0010] Preferably, the screw is fixedly connected to the mouse, one end of the screw passes through the inner ring of the bearing assembly, and the screw is also provided with a first nut for adjusting the bearing assembly.
[0011] Preferably, the screw is rotatably threaded to the mouse, and one end of the screw is fixedly connected to the bearing assembly.
[0012] Preferably, the trackball mounting structure of the input device is further provided with a nut seat, the screw is threadedly connected to the nut seat, one end of the screw is fixedly connected to the bearing assembly, and a second nut for adjusting the extension and retraction of the screw is provided in the nut seat.
[0013] Preferably, the inner ring is provided with a plurality of friction balls, which abut against the track ball.
[0014] Preferably, the inner ring is provided with a damping plate, which abuts against the trackball.
[0015] Preferably, the outer ring is provided with a plurality of friction balls, which abut against the track ball.
[0016] Preferably, a damping plate is provided on the outer ring, and the damping plate abuts against the trackball.
[0017] The beneficial effects of this utility model are: This invention utilizes a vertical damping component connected to a trackball. When the mouse moves left or right, the horizontal rolling friction is less than the vertical sliding friction, resulting in smoother horizontal rotation of the trackball. The diagonal and vertical resistance is relatively greater, which translates to smoother left and right movement of the cursor and display screen. In games and other applications requiring rapid left and right turns, the viewing angle is smoother and does not wobble, leading to a better gaming experience.
[0018] The damping assembly is connected to the bearing assembly. The friction head of the bearing assembly is in contact with the trackball. The friction head has more friction and stronger constraint on the vertical rotation of the trackball. The left and right rotation of the trackball will be smoother, and the cursor and viewing angle will be more stable. Attached Figure Description
[0019] Figure 1 This is a perspective view of Example 1; Figure 2 This is an exploded view of the inner ring high-damping sheet of Example 1; Figure 3 This is a schematic diagram of the outer ring with friction balls in Example 2; Figure 4 This is a schematic diagram of the outer ring damping plate in Embodiment 2; Figure 5 This is a schematic diagram of Example 3; Figure 6 This is a schematic diagram of Example 4; Figure 7 This is a schematic diagram of Example 5; Figure 8 This is a schematic diagram of Example 6; Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Clearance opening; 3. Track ball; 4. Damping assembly; 5. Bearing assembly; 6. Outer ring; 7. Inner ring; 8. Friction head; 9. Screw; 10. First nut; 11. Nut seat; 12. Second nut; 13. Friction ball; 14. Damping plate. Detailed Implementation
[0020] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.
[0021] Example 1: Refer to Figures 1 to 3The present invention discloses a trackball mounting structure for an input device, comprising a mounting base 1 disposed within a mouse, wherein a scrollable trackball 3 is disposed within the mounting base 1. When operating this type of mouse, the cursor is controlled by manually moving the trackball 3. The mounting base 1 has a first direction for controlling the up-and-down movement of the cursor and a second direction for controlling the left-and-right movement of the cursor. At least one clearance opening 2 is provided in the first direction for a damping component 4 to pass through. The damping component 4 includes a screw 9 and a bearing assembly 5. The bearing assembly 5 is fixedly connected to one end of the screw 9, and the other end of the screw 9 is threadedly connected to the mouse. A friction head 8 is connected to the bearing assembly 5. The tightness of the contact between the friction head 8 and the trackball 3 can be adjusted by rotating the screw 9. In this embodiment, the friction head 8... Three friction balls 13 are set in the inner ring 7. The friction balls 13 abut against the track ball 3. When the track ball 3 rotates in the first direction, the friction balls 13 generate sliding friction on the track ball 3. When the track ball 3 rotates in the second direction, the rolling friction of the bearing is generated. Since the rolling friction is less than the sliding friction, the track ball 3 runs more smoothly in the second direction than in the first direction. When controlling the cursor to move left and right, the cursor or the displayed field of view will not shake up and down. In the usage environment such as games that require quick observation of the left and right field of view, there will be no shaking of the field of view when quickly turning left and right, resulting in a better user experience. In the preferred embodiment, the friction head 8 is a damping plate 14 fixedly connected to the inner ring 7. The damping plate 14 can be set as a bowl-shaped structure that fits tightly against the track ball 3.
[0022] Example 2 differs from Example 1 in that the friction ball 13 or the damping plate 14 is disposed on the outer ring 6 of the bearing assembly 5.
[0023] Example 3 differs from Example 1 in that it does not have a screw 9. The outer ring 6 of the bearing assembly 5 is provided with an external thread. The outer ring 6 is threaded to the mouse. By rotating the outer ring 6, the distance between the bearing assembly 5 and the trackball 3 can be adjusted, thereby adjusting the tightness of the friction head 8 on the trackball.
[0024] Example 4 differs from Example 1 in that the mouse has a nut seat 11, a screw 9 is threaded to the nut seat 11, and a second nut 12 located inside the nut seat 11 is threaded to the screw 9. Rotating the second nut 12 can adjust the tightness of the friction head 8 on the trackball 3.
[0025] Example 5 differs from Example 1 in that the screw 9 is fixedly connected to the mouse, and the bearing assembly 5 is threadedly connected to the screw 9. By rotating the inner ring 7 of the bearing assembly 5, the distance between the bearing assembly 5 and the trackball 3 is adjusted, thereby adjusting the tightness of the friction head 8 on the trackball.
[0026] In Example 6, unlike Example 5, the screw 9 is provided with a connector, which is movably connected to the inner ring 7 of the bearing assembly 5. The screw 9 is also provided with a first nut 10, which can adjust the tightness between the friction head 8 and the track ball 3 by rotating the first nut 10.
[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A trackball mounting structure for an input device, comprising a mounting base (1), wherein the mounting base (1) has at least one clearance opening (2) extending through its side wall in a first direction. A trackball (3) is rotatably mounted inside the mounting base (1); Its features are, It also includes a damping assembly (4) connected to the input device. The damping assembly (4) extends telescopically into the relief opening (2) to limit the rotation of the trackball (3). The damping assembly (4) includes a bearing assembly (5). The bearing assembly (5) includes an outer ring (6) and an inner ring (7) with external threads. The outer ring (6) is threaded to the mouse. The inner ring (7) is provided with a friction head (8). The friction head (8) abuts against the trackball (3) to limit the rotation of the trackball (3).
2. The trackball mounting structure for an input device according to claim 1, wherein The damping component (4) includes a screw (9) connected to the mouse and a bearing assembly (5) located at one end of the screw (9). The bearing assembly (5) is provided with a friction head (8), which abuts against the trackball (3) to limit the rotation of the trackball (3).
3. The trackball mounting structure for an input device according to claim 2, wherein The screw (9) is fixedly connected to the mouse, and the bearing assembly (5) is threadedly connected to the screw (9).
4. The trackball mounting structure for an input device according to claim 2, wherein The screw (9) is fixedly connected to the mouse. One end of the screw (9) passes through the inner ring (7) of the bearing assembly (5). The screw (9) is also provided with a first nut (10) for adjusting the bearing assembly (5).
5. The trackball mounting structure for an input device according to claim 2, wherein The screw (9) is rotatably threaded to the mouse, and one end of the screw (9) is fixedly connected to the bearing assembly (5).
6. The trackball mounting structure for an input device according to claim 5, wherein The trackball mounting structure is also provided with a nut seat (11), a screw (9) is threaded to the nut seat (11), one end of the screw (9) is fixedly connected to the bearing assembly (5), and a second nut (12) is provided in the nut seat (11) for adjusting the extension and retraction of the screw (9).
7. The trackball mounting structure for an input device according to any one of claims 1 to 6, wherein The inner ring (7) is provided with several friction balls (13), which abut against the track ball (3).
8. The trackball mounting structure for an input device according to any one of claims 1 to 6, wherein The inner ring (7) is provided with a damping plate (14), which abuts against the trackball (3).
9. The trackball mounting structure for an input device according to any one of claims 1 to 6, wherein The outer ring (6) is provided with several friction balls (13), which abut against the track ball (3).
10. The trackball mounting structure for an input device according to any one of claims 1 to 6, wherein The outer ring (6) is provided with a damping plate (14), which abuts against the trackball (3).