Roller device and method capable of automatically switching fast rolling and slow rolling

Abstract

The invention aims to provide the roller device and the method for automatically switching the fast rolling and the slow rolling, which are high in response speed, low in operation delay and good in experience feeling. The rolling wheel device comprises a base and a rolling wheel assembly, the rolling wheel assembly comprises an inner wheel and an outer wheel, a mounting shaft is arranged on the base, the inner wheel and the outer wheel are both rotationally matched on the mounting shaft, a gear ring is arranged on the inner edge of the outer wheel, the gear ring is in transmission fit with a main gear arranged on the inner wheel through a gear transmission assembly, and the main gear is in transmission fit with the inner wheel. A plurality of first magnetic bodies are arranged on the mounting shaft, a plurality of sliding grooves are formed in the inner wheel in a circumferential array mode, a balance weight body is arranged in each sliding groove in a sliding fit mode, all the balance weight bodies are matched with the first magnetic bodies in a magnetic attraction mode, at least one balance weight body is a second magnetic body, and at least one balance weight body is a third magnetic body. A sensor group matched with the second magnetic body is also arranged on the base; the method is realized by utilizing the roller device. The roller device is applied to the technical field of roller devices.

Description

Technical Field

[0001] The present invention is applied to the technical field of roller devices, and particularly relates to a roller device and method for automatically switching between fast and slow rolling. Background Art

[0002] A mouse is a commonly used input device for computer equipment at present. It can interact with the computer equipment through it, and then control the movement of the pointer and page scrolling, etc. Among them, the realization of page scrolling is through the roller on the mouse. In the existing mouse, an encoder is usually set. The roller is connected to the encoder to drive the rotor to rotate to generate a control signal. Due to its own structure, the rotary encoder will have a sense of paragraph when rotating, and there will be resistance when rotating. When it is necessary to quickly scroll the page, it can only be achieved by quickly operating the roller, resulting in a slow response speed, and there will be a large amount of noise during the fast operation process.

[0003] At present, when realizing the functions of fast scrolling and slow scrolling in the market, mechanical switching is required. For example, in the Chinese patent with the publication number CN211454559U, it adjusts the rigid frame through an electric control adjustment component, and then drives the rigid frame to cooperate with the toothed structure inside the roller to provide damping to achieve the effect of slow and precise operation. When the electric control adjustment component drives the rigid frame to separate from the roller, it enters the fast scrolling state. However, when switching, it needs to be switched through the electric adjustment component and only executes the switching when receiving instructions from a program or a specified button, which is relatively cumbersome and very rigid. For application scenarios that require fast response for operation, it has serious operation delay characteristics, and there will be noise generated by the collision between the rigid frame and the roller in the damping state, and the experience is not good.

[0004] If a roller device that can automatically switch, has a fast response speed, a low operation delay, and a good experience can be provided, the above technical problems can be well solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a roller device and method for automatically switching between fast and slow rolling with a fast response speed, a low operation delay, and a good experience.

[0006] The technical solution adopted by the present invention is as follows: The roller device with automatic switching between fast and slow rolling includes a base and a roller assembly. The roller assembly includes an inner wheel and an outer wheel. An installation shaft is provided on the base. Both the inner wheel and the outer wheel are rotationally fitted on the installation shaft. A toothed ring is provided on the inner edge of the outer wheel. The toothed ring is in transmission cooperation with a main gear provided on the inner wheel through a toothed transmission assembly. A plurality of first magnetic bodies are provided on the installation shaft. A plurality of sliding grooves are arranged in a circumferential array on the inner wheel. A counterweight is slidably fitted in each sliding groove. All the counterweights are magnetically attracted and fitted with the first magnetic bodies. At least one of the counterweights is a second magnetic body. A sensor group for magnetic sensing cooperation with the second magnetic body is also provided on the base.

[0007] As can be seen from the above solution, the transmission between the inner wheel and the outer wheel is realized through the cooperation of the toothed ring, the toothed transmission assembly and the main gear. At the same time, the toothed ring with a large diameter drives the main gear with a small diameter to rotate, thereby realizing the amplification of the rotation speed. The user can adjust the rotation speed of the inner wheel by controlling the rotation speed of the outer wheel. When the inner wheel enters the fast rotation, under the condition of increased inertial force, a plurality of the counterweights will automatically break through the magnetic attraction of the first magnetic bodies and move away from the rotation axis, so that the roller assembly automatically switches to a low-damping state, providing a fast-switching effect for the user and realizing fast rolling. And no additional mechanical structure needs to be operated during the switching process, and the state transformation is smooth. In the slow state, the paragraph feeling damping can be realized through the magnetic attraction cooperation between the second magnetic body in a plurality of the counterweights and the first magnetic bodies, so that the user can perform precise operations. At the same time, the second magnetic body in a plurality of the counterweights cooperates with the sensor group, and the sensor group is triggered by the magnetic field to generate a roller control signal, making the signal detection more sensitive.

[0008] A preferred solution is that the toothed transmission assembly includes a plurality of planetary gears arranged centered on the main gear. All the planetary gears are rotationally fitted on the base through fixed columns. The toothed ring is coaxial with the main gear. The toothed ring drives the inner wheel to rotate through the planetary gears and triggers the sensor group by the second magnetic body.

[0009] A further preferred solution is that the toothed transmission assembly includes three planetary gears, and the three planetary gears are evenly distributed along the circumferential direction of the main gear.

[0010] A preferred solution is that the sensor group includes a first Hall sensor and a second Hall sensor arranged along the circumferential direction of the roller assembly.

[0011] A preferred solution is that two groups of the first magnetic bodies are provided on the installation shaft, and the two groups of the first magnetic bodies are arranged in the same plane and the polar installation directions are opposite.

[0012] A further preferred solution is that all the counterweight bodies are second magnetic bodies, the connection line between the two poles of each second magnetic body is tangent to the circumferential direction of the mounting shaft, and the polarities of each second magnetic body are the same along the circumferential direction of the mounting shaft.

[0013] A preferred solution is that a cover matching the sliding groove is fixed on the side surface of the inner wheel.

[0014] A further preferred solution is that limiting convex strips matching the counterweight bodies are arranged in the sliding groove.

[0015] A preferred solution is that a rubber layer is arranged on the outer surface of the outer wheel.

[0016] The method includes the following specific contents: State 1: When in a stationary state, several counterweight bodies approach the mounting shaft under the magnetic attraction of the corresponding and adjacent first magnetic bodies. State 2: When the outer wheel is slowly rolled, the inner wheel rotates driven by the gear transmission assembly. Several counterweight bodies remain close to the mounting shaft under the magnetic attraction. At the same time, the second magnetic body and the first magnetic body cooperate to generate sectional damping. While rotating, the second magnetic body triggers the sensor group, and the sensor group forms a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device. State 3: When the outer wheel is quickly rolled, the inner wheel rotates driven by the gear transmission assembly. At the same time, when rotating at a high speed, the inertial force of several counterweight bodies is greater than the magnetic force between the counterweight bodies and the first magnetic bodies, so that several counterweight bodies all move away from the rotating shaft. Furthermore, the roller assembly enters a fast rotation state without sectional damping. While rotating, the second magnetic body triggers the sensor group, and the sensor group forms a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device.

[0017] As can be seen from the above solution, when the user operates the outer wheel slowly, the counterweight and the first magnetic body cooperate to achieve low-speed rolling. At the same time, the second magnetic body and the first magnetic body are magnetically attracted to each other to generate a damping with a sense of paragraph during the rotation process, meeting the user's need for precise control of the rolling speed. When the user operates the outer wheel quickly, the high-speed rotation of the inner wheel is achieved through the amplification of the transmission ratio, causing several counterweights to move away from the rotation axis. Under the action of inertia, the counterweights can overcome the magnetic force of the first magnetic body and weaken the magnetic force between the second magnetic body and the first magnetic body, thereby enabling the inner wheel to rotate with low damping. At the same time, the sensor group obtains the rotation state of the inner wheel through magnetic sensing cooperation, and then forms a control signal and communicates with the computer device through the controller of input devices such as a mouse, realizing operations on the computer device. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a first exploded structural schematic diagram of the present invention; Figure 3 is a second exploded structural schematic diagram of the present invention; Figure 4 is an exploded structural schematic diagram of the base; Figure 5 is an exploded structural schematic diagram of the roller assembly; Figure 6 is a structural schematic diagram of the roller assembly in a static state and a slow state; Figure 7 is a structural schematic diagram of the roller assembly in a fast state. Detailed Embodiments

[0019] As Figures 1 to 7As shown, in this embodiment, the roller device with automatic fast and slow rolling switching includes a base 1 and a roller assembly. The roller assembly includes an inner wheel 2 and an outer wheel 3. An installation shaft 11 is provided on the base 1. Both the inner wheel 2 and the outer wheel 3 are rotationally fitted on the installation shaft 11. A toothed ring 31 is provided on the inner edge of the outer wheel 3. The toothed ring 31 is in transmission cooperation with a main gear 21 provided on the inner wheel 2 through a toothed transmission assembly. Two groups of first magnetic bodies 12 are provided on the installation shaft 11. The two groups of first magnetic bodies 12 are arranged in the same plane and have opposite polar installation directions. Three sliding grooves 22 are circumferentially and arrayedly provided on the inner wheel 2. All the sliding grooves 22 are arranged along the radial direction of the inner wheel 2. A counterweight 23 is slidably fitted in each sliding groove 22. All the counterweights 23 are second magnetic bodies. The connection line between the two poles of each second magnetic body is tangent to the circumferential direction of the installation shaft 11. The polarities of each second magnetic body are the same along the circumferential direction of the installation shaft 11. All the counterweights 23 are magnetically attracted to the adjacent first magnetic bodies 12. A sensor group cooperating with the second magnetic body is also provided on the base 1. By setting the two groups of first magnetic bodies 12 with opposite polar installation directions, the magnetic field distribution along the circumferential direction is made uniform. When the number of the first magnetic bodies 12 increases, they are arranged in sequence along the circumferential direction and have the same polar direction, so as to ensure that each movement of the second magnetic body can be attracted to the adjacent first magnetic body 12, realizing a sense of paragraph and providing a certain damping effect. This design can ensure that the counterweights can be attracted by the first magnetic bodies 12 in the static state and the slow state. In the fast rotation state, the inertial force of the counterweight 23 is greater than the magnetic force exerted by the first magnetic body 12, so as to move away from the installation shaft 11. After moving away, the magnetic force between the first magnetic body 12 and the second magnetic body weakens, achieving the effect of no paragraph damping. At the same time, the distribution of the counterweights 23 makes the inner wheel 2 have a certain rotation holding effect, so as to provide the effect of maintaining rotation. And the three sliding grooves 22 arranged in the circumferential array direction can ensure the uniform mass distribution on the inner wheel 2, making the rotation more stable.

[0020] As Figure 1 shown, in this embodiment, the toothed transmission assembly includes three planetary gears 13 arranged centered on the main gear 21. The three planetary gears 13 are evenly distributed along the circumferential direction of the main gear 21. All the planetary gears 13 are rotationally fitted on the base 1 through fixed columns. The toothed ring 31 is coaxial with the main gear 21. The toothed ring 31 drives the inner wheel 2 to rotate through the planetary gears 13 and makes the second magnetic body trigger the sensor group. By using the three planetary gears 13, stable support is provided, and at the same time, the stability of transmission is ensured.

[0021] AsFigure 4 As shown in the figure, in this embodiment, the sensor group includes a first Hall sensor 14 and a second Hall sensor 15 arranged along the circumferential direction of the roller assembly. By performing magnetic induction in sequence with the two Hall sensors, the rotation direction is confirmed by obtaining the sequence of signals generated by the magnetic field, and high-precision rotation detection is achieved.

[0022] As Figure 5 As shown in the figure, in this embodiment, a cover 24 that cooperates with the sliding groove 22 is fixed to one side surface of the inner wheel 2, and all the sliding grooves 22 are provided on the side of the inner wheel 2 close to the cover 24. A limiting rib 25 that cooperates with the counterweight 23 is provided in the sliding groove 22. The cooperation between the cover 24 and the sliding groove 22 realizes the encapsulation of the counterweight 23, ensuring the stability of the counterweight 23 during rotation. The provision of the limiting rib 25 in the sliding groove 22 realizes the storage space for the lubricating medium, ensuring the long-term smooth operation of the counterweight 23.

[0023] In this embodiment, a rubber layer 32 is provided on the outer surface of the outer wheel 3. The provision of the rubber layer 32 facilitates user operation.

[0024] As Figure 2 As shown in the figure, an annular shielding piece is further provided on the outer wheel 3, and a sector-shaped baffle plate that cooperates with the shielding piece is provided on the base 1. The provision of the annular shielding piece and the sector-shaped baffle plate prevents external dust from entering the gear components, ensuring the long-term stable and reliable operation of the transmission components.

[0025] The working method of the roller includes the following specific contents: State 1: In the static state, several of the counterweights 23 are attracted by the corresponding adjacent first magnetic bodies 12 and approach the mounting shaft 11; State 2: As Figure 6 As shown in the figure, when the outer wheel 3 is slowly rolled, the inner wheel 2 rotates driven by the gear transmission assembly. Several of the counterweights 23 remain in the state of approaching the mounting shaft 11 under the magnetic attraction, and at the same time, the second magnetic body and the first magnetic body 12 cooperate to generate a paragraph damping. While rotating, the second magnetic body triggers the sensor group, and the sensor group forms a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device; State 3: As Figure 7As shown, when the outer wheel 3 is quickly scrolled, the inner wheel 2 rotates under the drive of the gear transmission assembly. At the same time, when rotating at a high speed, the inertial force of several counterweight bodies 23 is greater than the magnetic force between the counterweight bodies 23 and the first magnetic body 12, so that several counterweight bodies 23 all move away from the rotation axis. Then the roller assembly enters a fast rotation state without paragraph damping. While rotating, the second magnetic body triggers the sensor group, and the sensor group forms a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device.

[0026] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, the modifications of its implementation solutions according to this specification and the combinations with other solutions are obvious.

Claims

1. A roller device with automatic switching between fast and slow scrolling, characterized in that: The invention comprises a base (1) and a roller assembly, wherein the roller assembly comprises an inner wheel (2) and an outer wheel (3), wherein a mounting shaft (11) is arranged on the base (1), wherein the inner wheel (2) and the outer wheel (3) are both rotatably engaged with the mounting shaft (11), wherein a toothed ring (31) is arranged on the inner edge of the outer wheel (3), wherein the toothed ring (31) is transmission-engaged with a main gear (21) arranged on the inner wheel (2) through a toothed transmission assembly, wherein a plurality of first magnetic bodies (12) are arranged on the mounting shaft (11), wherein a plurality of sliding grooves (22) are arranged in a circumferential array on the inner wheel (2), wherein a counterweight body (23) is slidably engaged in each of the sliding grooves (22), wherein all the counterweight bodies (23) are magnetically engaged with the first magnetic body (12), wherein at least one of the counterweight bodies (23) is a second magnetic body, and wherein a sensor group magnetically engaged with the second magnetic body is also arranged on the base (1).

2. The roller device with automatic switching between fast and slow scrolling according to claim 1, characterized in that: The gear transmission assembly comprises a plurality of planetary gears (13) arranged with the main gear (21) as the center, all the planetary gears (13) are rotatably engaged on the base (1) via a fixing column, the gear ring (31) is coaxial with the main gear (21), and the gear ring (31) drives the inner wheel (2) to rotate via the planetary gears (13) and causes the second magnetic body to trigger the sensor group.

3. The roller device with automatic switching between fast and slow scrolling according to claim 2, characterized in that: The gear transmission assembly comprises three planetary gears (13), and the three planetary gears (13) are evenly distributed along the circumferential direction of the main gear (21).

4. The roller device with automatic switching between fast and slow scrolling according to claim 1, characterized in that: The sensor group comprises a first Hall sensor (14) and a second Hall sensor (15) which are arranged along the circumferential direction of the roller assembly.

5. The roller device with automatic switching between fast and slow scrolling according to claim 1, characterized in that: Two groups of the first magnetic bodies (12) are arranged on the installation shaft (11), and the two groups of the first magnetic bodies (12) are arranged on the same plane and have opposite polarity installation directions.

6. The roller device with automatic switching between fast and slow scrolling according to claim 5, characterized in that: All of the counterweights (23) are second magnetic bodies, the line connecting the two poles of each second magnetic body is tangent to the circumferential direction of the installation shaft (11), and the polarity of each second magnetic body along the circumferential direction of the installation shaft (11) is the same.

7. The roller device with automatic switching between fast and slow scrolling according to claim 1, characterized in that: A sealing cover (24) that cooperates with the sliding groove (22) is fixed on the side surface of the inner wheel (2).

8. The roller device with automatic switching between fast and slow scrolling according to claim 7, characterized in that: A limiting convex strip (25) cooperating with the counterweight body (23) is arranged in the sliding groove (22).

9. The roller device with automatic switching between fast and slow scrolling according to claim 1, characterized in that: The outer surface of the outer wheel (3) is provided with a rubber layer (32).

10. A roller working method, which is implemented by using a roller device with automatic switching between fast and slow scrolling as claimed in any one of claims 1 to 9, characterized in that: It includes the following specific contents: State 1: In a static state, a plurality of the counterweight bodies (23) are brought close to the installation shaft (11) under the magnetic attraction of the first magnetic bodies (12) that are close to the corresponding first magnetic bodies (12); State 2: when the outer wheel (3) is rolled at a slow speed, the inner wheel (2) is driven by the gear transmission assembly to rotate, and the plurality of counterweights (23) are kept close to the mounting shaft (11) under the effect of magnetic attraction, and at the same time, the second magnetic body cooperates with the first magnetic body (12) to generate segment damping, and while rotating, the second magnetic body triggers the sensor group, and the sensor group generates a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device; State three: when the outer wheel (3) is rolled quickly, the inner wheel (2) is driven by the gear transmission assembly to rotate, and at the same time, the inertia force of the plurality of counterweights (23) is greater than the magnetic force between the counterweights (23) and the first magnetic body (12) during high-speed rotation, so that the plurality of counterweights (23) are all away from the rotation axis, and the roller assembly enters a rapid rotation state without segment damping. While rotating, the second magnetic body triggers the sensor group, and the sensor group forms a control signal and feeds it back to the controller of the input device, and the controller communicates with the computer device.

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