Rotary press composite knob structure

Abstract

The utility model discloses a kind of rotary press composite knob structure, including substrate, main knob, control component, light touch switch, lower cover plate, auxiliary knob and encoder. Main knob is rotatably connected on substrate, with first axial through cavity, control component is nested therein and forms axial direction guiding and radial rotation gap. Light touch switch is equipped at the lower end of control component, triggers electrical signal and automatically rebounds by pressing control component. Auxiliary knob is meshed connection by the second gear and the first gear of main knob, internally embedded encoder, for generating rotation angle displacement signal. The utility model realizes rotation and press double input function, improves the precision and reliability of control.

Description

Technical Field

[0001] This utility model relates to the field of knob technology, and in particular to a rotary-press composite knob structure. Background Technology

[0002] In human-computer interaction systems of various electronic devices, knobs are commonly used input devices for functions such as selection and parameter adjustment. However, existing knob structures typically only support rotation; to achieve functions such as confirmation and switching, additional independent buttons are required. This layout not only increases the overall space occupied by the device but also increases the complexity of the human-computer interface, hindering miniaturization and integrated design.

[0003] Furthermore, because the rotation and pressing functions are separated, users need to frequently switch operating modes when changing functions, resulting in reduced interaction efficiency and a poor user experience. To achieve composite input functionality, some existing designs attempt to integrate rotation and pressing mechanisms into the knob, but these often face problems such as complex mechanical structures and high manufacturing process requirements, increasing costs and the risk of failure.

[0004] More importantly, while traditional knobs achieve high-precision rotation detection, they often struggle to maintain stability and tactile feedback during pressing, leading to issues such as decreased rotational accuracy or poor tactile feedback during pressing, severely impacting the overall user experience. Therefore, how to integrate rotation and pressing functions within a limited space, while simultaneously achieving structural simplification, ease of operation, and reliable performance, has become a pressing technical challenge in this field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary-press composite knob structure for dual input functions of rotation and pressing, thereby improving the accuracy and reliability of operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary-press composite knob structure, comprising a base plate, a main knob, a control component, a tactile switch, a lower cover plate, an auxiliary knob, and an encoder;

[0007] The main knob is rotatably connected to the base plate. The main knob includes a first rotating body and a first gear integrally connected from top to bottom. The main knob has a first axial through cavity. The control component is coaxially nested in the first axial through cavity. An independent axial guide gap and a radial rotation gap are formed between the upper outer wall of the control component and the inner wall of the first axial through cavity.

[0008] The tactile switch is disposed on the lower end surface of the control component, and the lower cover plate is located below the tactile switch. The lower cover plate is connected to the base plate through a connector. When the control component is pressed axially downward to contact the lower cover plate, the tactile switch generates an electrical signal and triggers automatic rebound.

[0009] The auxiliary knob includes a second gear and a second connecting body integrally connected from top to bottom. The second gear meshes with the first gear. The auxiliary knob has a second axial through cavity. The detection head of the encoder is nested in the second axial through cavity.

[0010] When the main knob is turned, it drives the auxiliary knob to rotate, and the encoder generates an angular displacement signal.

[0011] Furthermore, the axial guide clearance is 0.04 mm, and the radial rotation clearance is 0.02 mm.

[0012] Furthermore, the control component includes, from top to bottom, a panel, a digital tube, and a PCB control board. The tactile switch is disposed on the lower end surface of the PCB control board, and both the digital tube and the tactile switch are electrically connected to the PCB control board.

[0013] Furthermore, the lower end face of the panel is provided with a plurality of downwardly arranged first connecting tubes, the tube walls of which are provided with internal threads, each of the first connecting tubes being located outside the digital tube, and a plurality of first bolts being provided through the outer edge of the PCB control board, each of the first bolts being threadedly connected to the corresponding first connecting tube.

[0014] Furthermore, the PCB control board is provided with multiple limiting openings, and the upper end face of the lower cover plate is provided with multiple limiting posts. Each limiting post is inserted into the limiting opening, and an axial limiting gap is formed between the outer wall of the limiting post and the inner wall of the limiting opening.

[0015] Furthermore, the lower end face of the substrate is provided with a plurality of downwardly arranged second connecting tubes, the tube walls of the second connecting tubes are provided with internal threads, and a plurality of second bolts are provided through the outer edge of the lower cover plate, each second bolt being threadedly connected to the corresponding second connecting tube.

[0016] Furthermore, the outer side of the second gear is provided with an arc-shaped gear cover, the upper end of which is fixedly connected to the lower end face of the substrate.

[0017] Furthermore, the upper end face of the lower cover plate is provided with a contact protrusion, and when the tactile switch is pressed axially downward by the control component, the contact protrusion contacts the tactile switch.

[0018] Furthermore, it also includes a housing, within which the tactile switch, the lower cover, the auxiliary knob, and the encoder are all located.

[0019] The beneficial effects of this utility model are:

[0020] The rotary-press composite knob structure provided by this utility model cleverly combines the main knob, control components, and auxiliary knobs to achieve an integrated design of rotation and pressing functions, significantly improving human-computer interaction efficiency. This structure effectively reduces the use of independent buttons, reduces the overall space occupied by the device, and promotes miniaturization and integration.

[0021] By optimizing the design of the axial guide clearance and radial rotation clearance, high precision of rotational operation is ensured, while stable triggering and reliable rebound of pressing operation are achieved, balancing rotational accuracy and pressing feel. The auxiliary knob is connected to the main knob through gear meshing, and combined with an encoder, efficient acquisition of angular displacement signals is achieved, improving the sensitivity and accuracy of rotation detection;

[0022] The overall structure of this utility model is reasonably designed with low mechanical complexity, which is conducive to manufacturing and assembly, and reduces production costs and failure rate.

[0023] In summary, this utility model can effectively overcome the problems of separation of rotation and pressing, complex structure, low space utilization and poor user experience in the prior art, and has good application prospects and promotion value. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the rotary-press composite knob structure in this utility model;

[0025] Figure 2 This is a schematic diagram of the control component in this utility model;

[0026] Figure 3 This is a schematic diagram of the limiting opening and limiting post in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the second connecting pipe and the second bolt in this utility model;

[0028] Figure 5 This is an internal sectional view of the shell in this utility model.

[0029] Reference numerals: 1. Base plate; 2. Main knob; 21. First rotating body; 22. First gear; 3. Control component; 31. Panel; 32. Digital tube; 33. PCB control board; 4. Tactile switch; 5. Lower cover plate; 6. Auxiliary knob; 61. Second gear; 62. Second connector; 7. Encoder; 8. First connecting tube; 9. First bolt; 10. Limiting opening; 11. Limiting post; 12. Second connecting tube; 13. Second bolt; 14. Gear cover; 15. Contact protrusion; 16. Housing. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] Example 1, referring to Figures 1 to 2 This is the first embodiment of the present utility model. This embodiment provides a rotary-press composite knob structure, which can realize dual input functions of rotation and pressing, and improve the accuracy and reliability of operation. It includes a base plate 1, a main knob 2, a control component 3, a tactile switch 4, a lower cover plate 5, an auxiliary knob 6, and an encoder 7.

[0032] The main knob 2 is rotatably connected to the base plate 1. The main knob 2 includes a first rotating body 21 and a first gear 22 that are integrally connected from top to bottom. The main knob 2 has a first axial through cavity. The control component 3 is coaxially nested in the first axial through cavity. An independent axial guide gap and a radial rotation gap are formed between the upper outer wall of the control component 3 and the inner wall of the first axial through cavity.

[0033] The tactile switch 4 is located on the lower end face of the control component 3, and the lower cover plate 5 is located below the tactile switch 4. The lower cover plate 5 is connected to the base plate 1 through a connector. When the control component 3 is pressed axially downward to contact the lower cover plate 5, the tactile switch 4 generates an electrical signal and triggers automatic rebound.

[0034] The auxiliary knob 6 includes a second gear 61 and a second connecting body 62 that are integrally connected from top to bottom. The second gear 61 meshes with the first gear 22. The auxiliary knob 6 has a second axial through cavity, and the detection head of the encoder 7 is nested in the second axial through cavity.

[0035] When the main knob 2 is turned, it drives the auxiliary knob 6 to rotate, and the encoder 7 generates an angular displacement signal.

[0036] Preferably, the axial guide clearance is 0.04 mm and the radial rotation clearance is 0.02 mm. This configuration ensures rotational flexibility while improving the accuracy of press-triggered activation and the tactile feedback.

[0037] In this embodiment, the key parameters for pressing and rotating include:

[0038] Rotation angle resolution: ±1°

[0039] Pressing stroke: 0.5-1.2mm adjustable

[0040] Operating life: Rotation > 10,000 times / Pressing > 50,000 times

[0041] Operating torque: 0.2-0.5 N·m for rotation, 1.5-3 N for pressing.

[0042] Working principle of Example 1:

[0043] When the user presses the main knob 2 down along the axis, the control component 3 moves accordingly and triggers the tactile switch 4 to generate an electrical signal, completing the input command; then, the tactile switch 4 releases and drives the control component 3 to spring back, restoring the initial state.

[0044] The auxiliary knob 6 is located below the main knob 2 and is integrally formed by the second gear 61 and the second connecting body 62. The second gear 61 meshes with the first gear 22 of the main knob 2. The auxiliary knob 6 has an axially extending second cavity inside, in which the encoder 7 is fixedly embedded to detect changes in rotation angle and output angular displacement signals. Rotation of the main knob 2 drives the auxiliary knob 6 to rotate synchronously, achieving accurate acquisition of angular displacement information.

[0045] This embodiment improves the sensitivity and accuracy of rotation operation and ensures the reliability and comfort of pressing operation by optimizing the knob structure design and gap control. It effectively overcomes the problems of low space utilization, complex structure and poor user experience of traditional knobs, and has significant application value and promotion prospects.

[0046] Meanwhile, the structure of this embodiment reduces installation space by 40% compared to the traditional solution, and the operation response time is <10ms. In addition, the production cost is reduced by 35%. Therefore, this embodiment not only improves the installation integration and significantly reduces the operation response time, but also effectively reduces the production cost.

[0047] Preferably, the control component 3 includes, from top to bottom, a panel 31, a digital tube 32, and a PCB control board 33. A tactile switch 4 is disposed on the lower end surface of the PCB control board 33. Both the digital tube 32 and the tactile switch 4 are electrically connected to the PCB control board 33.

[0048] Specifically, in this embodiment, the panel 31 is made of a semi-transparent material to facilitate light transmission. The digital tube 32 is used to display various digital information, such as parameter values ​​and mode indications, enhancing the user's interactive experience. Both the digital tube 32 and the tactile switch 4 are electrically connected to the PCB control board 33, which is located in the middle of the control assembly 3 and undertakes functions such as driving the digital tube 32 and acquiring signals from the tactile switch 4. The tactile switch 4 is mounted on the lower surface of the PCB control board 33. When the user presses the main knob 2 axially, the control assembly 3 moves downwards, triggering the tactile switch 4 to generate an electrical signal, and automatically rebounds after release.

[0049] Example 2, refer to Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a first connecting pipe 8, a first bolt 9, a second connecting pipe 12, and a second bolt 13, which can improve the connection stability of the overall mechanism. The lower end face of the panel 31 is provided with a plurality of downwardly arranged first connecting pipes 8. The pipe wall of the first connecting pipe 8 is provided with internal threads. Each first connecting pipe 8 is located outside the digital tube 32. A plurality of first bolts 9 are provided through the outer edge of the PCB control board 33. Each first bolt 9 is threadedly connected to the corresponding first connecting pipe 8.

[0050] Preferably, the lower end face of the substrate 1 is provided with a plurality of downwardly arranged second connecting tubes 12, the tube wall of the second connecting tube 12 is provided with internal threads, and a plurality of second bolts 13 are provided through the outer edge of the lower cover plate 5, and each second bolt 13 is threadedly connected to the corresponding second connecting tube 12.

[0051] Working principle of Example 2:

[0052] The first bolt 9 is screwed into the corresponding first connecting pipe 8 to secure the panel 31, digital tube 32 and PCB control board 33 together, ensuring the reliability and shock resistance of the components during long-term use; multiple second bolts 13 are provided through the outer edge of the lower cover plate 5, and each second bolt 13 is threaded into the corresponding second connecting pipe 12. The lower cover plate 5 is firmly connected to the base plate 1 through the threaded fastening, thereby providing stable support for the tactile switch 4 and control component 3 and avoiding loosening or displacement due to long-term operation;

[0053] The two sets of threaded connections significantly improve the structural stability of the overall structure during the connection process.

[0054] Example 3, referring to Figure 3This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a limiting opening 10 and a limiting post 11, which can improve the assembly accuracy and operational stability of the control component 3. It includes: a plurality of limiting openings 10 are provided on the PCB control board 33, and a plurality of limiting posts 11 are provided on the upper end surface of the lower cover plate 5. Each limiting post 11 is inserted into the limiting opening 10, and an axial limiting gap is formed between the outer wall of the limiting post 11 and the inner wall of the limiting opening 10.

[0055] Working principle of Example 3:

[0056] In this embodiment, by setting multiple limiting posts 11 on the upper surface of the lower cover plate 5 and correspondingly setting multiple limiting openings 10 on the PCB control board 33, the limiting posts 11 can be inserted into the limiting openings 10, thereby achieving the initial positioning between the panel 31 and the lower cover plate 5.

[0057] During assembly, each limiting post 11 is accurately inserted into its corresponding limiting opening 10. The axial limiting gap between the outer wall of the limiting post 11 and the inner wall of the limiting opening 10 effectively absorbs and compensates for minor dimensional errors caused by manufacturing tolerances, thermal expansion and contraction, etc. The limiting structure effectively limits the lower cover plate 5 in the axial direction, preventing relative sliding, displacement, or tilting of the lower cover plate 5 under the PCB control board 33 due to rotation or pressing operations, ensuring the positional stability of the entire control assembly 3 during use.

[0058] The above-mentioned limiting and matching design simplifies the assembly process of the control component 3 and the lower cover plate 5 and improves the assembly accuracy. On the other hand, it enhances the overall shock resistance and durability of the device, making it particularly suitable for high-frequency, multiple rotation and pressing operation scenarios.

[0059] Therefore, this embodiment can effectively improve the long-term reliability of the knob structure.

[0060] Preferred, Reference Figure 1 The outer side of the second gear 61 is provided with an arc-shaped gear cover 14, and the upper end of the gear cover 14 is fixedly connected to the lower end face of the base plate 1.

[0061] Specifically, in this embodiment, by providing a gear cover 14, dust and debris can be effectively prevented from entering the gear meshing area, avoiding gear meshing difficulties or wear due to contamination, while also enhancing the service life and reliability of the gear transmission structure.

[0062] Preferred, Reference Figure 5 The upper end face of the lower cover plate 5 is provided with a contact protrusion 15. When the tactile switch 4 is pressed axially downward by the control component 3, the contact protrusion 15 contacts the tactile switch 4.

[0063] Specifically, in this embodiment, by setting the contact bump 15, the trigger point position and contact pressure of the tactile switch 4 can be precisely controlled, thereby improving the stability and consistency of the pressing feedback.

[0064] Preferred, Reference Figure 5 It also includes a housing 16, with a tactile switch 4, a lower cover 5, an auxiliary knob 6, and an encoder 7 all located inside the housing 16.

[0065] Specifically, in this embodiment, the housing 16 not only serves to support and position the various components, but also provides good dustproof, waterproof and impact-resistant protection, enabling the knob structure to adapt to more complex or harsh application environments.

[0066] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A rotary press composite knob structure, characterized by, It includes a base plate (1), a main knob (2), a control assembly (3), a tactile switch (4), a lower cover plate (5), an auxiliary knob (6), and an encoder (7); The main knob (2) is rotatably connected to the base plate (1). The main knob (2) includes a first rotating body (21) and a first gear (22) integrally connected from top to bottom. The main knob (2) has a first axial through cavity. The control component (3) is coaxially nested in the first axial through cavity. An independent axial guide gap and a radial rotation gap are formed between the upper outer wall of the control component (3) and the inner wall of the first axial through cavity. The tactile switch (4) is disposed on the lower end surface of the control component (3), the lower cover plate (5) is located below the tactile switch (4), the lower cover plate (5) is connected to the substrate (1) through a connector, and the tactile switch (4) generates an electrical signal and triggers automatic rebound when the control component (3) is pressed axially downward to contact the lower cover plate (5). The auxiliary knob (6) includes a second gear (61) and a second connecting body (62) integrally connected from top to bottom. The second gear (61) meshes with the first gear (22). The auxiliary knob (6) has a second axial through cavity. The detection head of the encoder (7) is nested in the second axial through cavity. When the main knob (2) is turned, it drives the auxiliary knob (6) to rotate, and the encoder (7) generates an angular displacement signal.

2. The rotary press composite knob structure according to claim 1, wherein: The axial guide clearance is 0.04 mm, and the radial rotation clearance is 0.02 mm.

3. The rotary press composite knob structure according to claim 1, wherein: The control component (3) includes, from top to bottom, a panel (31), a digital tube (32), and a PCB control board (33). The tactile switch (4) is located on the lower end surface of the PCB control board (33). Both the digital tube (32) and the tactile switch (4) are electrically connected to the PCB control board (33).

4. The rotary press composite knob structure according to claim 3, wherein: The lower end face of the panel (31) is provided with a plurality of downwardly arranged first connecting tubes (8). The tube wall of the first connecting tube (8) is provided with internal threads. Each first connecting tube (8) is located outside the digital tube (32). A plurality of first bolts (9) are provided through the outer edge of the PCB control board (33). Each first bolt (9) is threadedly connected to the corresponding first connecting tube (8).

5. The rotary press composite knob structure according to claim 3, wherein: The PCB control board (33) is also provided with multiple limiting openings (10), and the upper end face of the lower cover plate (5) is provided with multiple limiting posts (11). Each limiting post (11) is inserted into the limiting opening (10), and an axial limiting gap is formed between the outer wall of the limiting post (11) and the inner wall of the limiting opening (10).

6. The rotary press composite knob structure according to claim 1, wherein: The lower end face of the substrate (1) is provided with a plurality of downwardly arranged second connecting tubes (12). The tube wall of the second connecting tube (12) is provided with internal threads, and a plurality of second bolts (13) are provided through the outer edge of the lower cover plate (5). Each second bolt (13) is threadedly connected to the corresponding second connecting tube (12).

7. The rotary press composite knob structure according to claim 1, wherein: The second gear (61) has an arc-shaped gear cover (14) on its outer side, and the upper end of the gear cover (14) is fixedly connected to the lower end face of the base plate (1).

8. The rotary press composite knob structure according to claim 1, wherein: The upper end face of the lower cover plate (5) is provided with a contact protrusion (15). When the tactile switch (4) is pressed axially downward by the control component (3), the contact protrusion (15) contacts the tactile switch (4).

9. The rotary press composite knob structure according to claim 1, wherein: It also includes a housing (16), in which the tactile switch (4), the lower cover (5), the auxiliary knob (6) and the encoder (7) are all located.

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