A convenient disassembly and assembly knob device

Abstract

This utility model provides a convenient knob assembly / disassembly device, comprising, from top to bottom, a knob cap, a top cover, a mounting panel, a knob encoder, and a control circuit board. The knob cap is mounted on the mounting panel through a first through hole on the top cover. The mounting panel has a first fastening position and a second fastening position, which fastens to the top cover through the first fastening position and to the knob cap through the second fastening position. The knob encoder is electrically connected to the control circuit board and has a rotating column at its upper end. The mounting panel has a second through hole, and the inner wall of the knob cap has a mating hole aligned with the second through hole on the same vertical axis. The mating hole is coupled to the outer surface of the rotating column. This utility model's knob assembly allows for secure mounting of the rotary encoder to the mounting panel and knob cap through a tight press, achieving convenient assembly / disassembly while ensuring the control circuit board is unaffected by rotational force.

Description

Technical Field

[0001] This utility model relates to the field of knob structure design, specifically to a convenient knob assembly and disassembly device. Background Technology

[0002] A knob is a mechanical or electronic control component that adjusts parameters or switches functions through rotation. It is widely used in industrial equipment, consumer electronics, and smart homes. Existing knob devices, such as knob encoders, are typically directly fixed to the control board to simplify wiring and reduce electromagnetic interference risks. However, this installation method can easily damage the circuit board during use due to the frequent stress on the knob, thus reducing the overall lifespan of the knob device.

[0003] To address the aforementioned issues, some knob devices utilize fasteners such as nuts to simultaneously secure the knob encoder to the decorative cover during installation. The decorative cover then bears the force of the knob, preventing direct damage to the circuit board. However, this installation method requires sufficient space for screw installation on the decorative cover and increases the number of fasteners, leading to higher production costs. Furthermore, after the knob device leaves the factory, users must first remove the nuts from the decorative cover before opening it to install the knob. This requires users to prepare appropriate tools, adding to the installation process and making it less convenient to use.

[0004] Therefore, a knob device is needed that allows for easy assembly and disassembly while ensuring that the circuit board is not affected by rotational force. Utility Model Content

[0005] This utility model provides a convenient disassembly and assembly knob device, which is mainly used to solve the problems of the existing knob device's structural design and installation method, which lead to the circuit board being easily damaged by force, increased production costs, and cumbersome use and installation. In this way, the knob device can be easily disassembled and assembled without the circuit board being affected by rotational force.

[0006] This utility model achieves the above objectives through the following technical solutions: A convenient knob assembly / disassembly device includes, from top to bottom, a knob cap, a top cover, a mounting panel, a knob encoder, and a control circuit board. The knob cap is mounted on the mounting panel through a first through hole on the top cover. The mounting panel has a first fastening position and a second fastening position, which fastens to the top cover through the first fastening position and to the knob cap through the second fastening position. The knob encoder is electrically connected to the control circuit board and has a rotating column at its upper end. The mounting panel has a second through hole, and the inner wall of the knob cap has a mating hole on the same vertical axis as the second through hole. The mating hole is coupled to the outer surface of the rotating column. The rotating column of the knob encoder is installed by pressing it through the second through hole and then into the mating hole.

[0007] A further embodiment is that a transmission gear meshes with each other in the mating hole on the knob cap and on the rotating column of the knob encoder. The knob encoder is used to convert the rotational torque of the knob cap into a corresponding electrical signal and output it to the control circuit board.

[0008] A further embodiment is that the rotary encoder includes a gear transmission assembly, a potentiometer, and a signal processing module. The gear transmission assembly is used to transmit the rotational torque to the resistance rail of the potentiometer. The potentiometer converts the resistance increment into a voltage signal output based on the displacement of the sliding contact on the resistance rail. The signal processing module includes a filtering circuit, an amplification circuit, and an AD conversion circuit, which are used to filter and amplify the voltage signal and convert it into a digital signal output to the control circuit board.

[0009] A further option is to embed a fiber Bragg grating sensor on the transmission gear. The fiber Bragg grating sensor is used to monitor the meshing state and wear of the transmission gear in real time, and transmits the detection signal to the control circuit board through an optical fiber.

[0010] A further embodiment is that the knob encoder is a photoelectric encoder, which contains a light source, a grating disk, and a detector. The light source is used to generate a constant light source to illuminate the grating disk. The grating disk rotates coaxially with the rotating column to convert the rotational torque into an incremental optical signal, and outputs a corresponding pulse signal through the detector.

[0011] A further option includes a locking element, which locks the position of the rotary encoder's rotating column after it passes through the second through hole in the mounting panel.

[0012] A further embodiment is that the locking element includes a fastening nut, and the rotating column passes through the fastening nut and is locked onto the mounting panel.

[0013] A further embodiment includes a cotter pin in the locking mechanism. When the knob is used for fixed gear adjustment, the locking nut locks the rotating column and then inserts the cotter pin. The cotter pin is used to restrict the relative movement of the rotating column, thereby fixing the knob at a certain gear.

[0014] Therefore, this utility model has the following beneficial effects: 1. This utility model uses a coaxial mounting hole design for the knob device mounting panel and the knob cap, and provides a rotating column coupled to the upper end of the knob encoder. This allows the knob encoder to be quickly installed on the mounting panel and the rotating cap through a convenient and tight installation method, avoiding the risk of circuit board damage caused by traditional installation on the circuit board, as well as the problems of complicated installation and increased cost caused by screw fixing.

[0015] 2. This utility model also uses a locking component to lock the rotating column that passes through the second through hole on the mounting panel, which further avoids the stress generated by rotation acting on the circuit board, effectively protecting the circuit board and extending the service life of the entire knob device.

[0016] 3. The design of this rotary encoder can take into account both mechanical and electronic encoders, achieving the above-mentioned beneficial effects and improving the versatility of the rotary device.

[0017] 4. The structural design of this utility model also adopts a fiber optic grating sensor to realize real-time monitoring of the meshing state and wear of the transmission gears of the mechanical knob encoder, and realizes fault analysis and alarm through the control circuit board. Compared with the general mechanical encoder, it can realize predictive maintenance, making the knob device more suitable for intelligent equipment.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the convenient disassembly and assembly knob device according to an embodiment of this utility model.

[0020] Figure 2 This is a structural diagram of the mounting panel of an embodiment of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] An embodiment of a convenient disassembly and assembly knob device See Figure 1 This utility model relates to a convenient detachable knob device, comprising, from top to bottom, a knob cap 10, a top cover 20, a mounting panel 30, a knob encoder 40, and a control circuit board 50. The knob cap 10 is mounted on the mounting panel 30 through a first through hole on the top cover 20. The mounting panel 30 has a first fastening position 31 and a second fastening position 32, which fasten to the top cover 20 through the first fastening position 31 and to the knob cap 10 through the second fastening position 32. The knob encoder 40 is electrically connected to the control circuit board 50 and has a rotating column at its upper end. The mounting panel 30 has a second through hole 33, and the inner wall of the knob cap 10 has a mating hole on the same vertical axis as the second through hole 33. The mating hole is coupled to the outer surface of the rotating column. The rotating column of the knob encoder 40 is installed by pressing it through the second through hole 33 into the mating hole.

[0023] See Figure 2 Specifically, the mounting panel 30 is provided with a plurality of mounting holes 34 for mounting the knob device on the application device.

[0024] Specifically, the mounting panel 30 has a first fastening position 31 on its edge, and the first fastening position 31 has several buckles. The upper cover 20 has several slots at the corresponding positions. The above-mentioned fastening parts are used to fasten and fix the mounting panel 30 and the upper cover 20.

[0025] The buckles are elastic buckles, and are evenly distributed along the edge of the mounting panel 30 with a spacing of 15mm or more, to avoid stress concentration that could cause deformation of the mounting panel 30.

[0026] Specifically, in this embodiment, the mounting panel 30 is provided with several asymmetrical openings and stepped openings, which are used to adopt an avoidance design according to the distribution of components on the circuit board.

[0027] In this embodiment, a transmission gear meshes with each other in the mating hole on the knob cap 10 and on the rotating column of the knob encoder 40. The knob encoder 40 is used to convert the rotational torque of the knob cap 10 into a corresponding electrical signal and output it to the control circuit board 50.

[0028] In this embodiment, the rotary encoder 40 includes a gear transmission assembly, a potentiometer, and a signal processing module. The gear transmission assembly is used to transmit the rotational torque to the resistance rail of the potentiometer. The potentiometer converts the resistance increment into a voltage signal output based on the displacement of the sliding contact on the resistance rail. The signal processing module includes a filtering circuit, an amplification circuit, and an AD conversion circuit, which are used to filter and amplify the voltage signal and convert it into a digital signal output to the control circuit board 50.

[0029] In this embodiment, a fiber Bragg grating sensor is embedded in the transmission gear. The fiber Bragg grating sensor is used to monitor the meshing state and wear of the transmission gear in real time, and transmits the detection signal to the control circuit board 50 through an optical fiber.

[0030] Specifically, in this embodiment, the control circuit board 50 determines the usage status of the transmission gear based on the detection signal, and if a fault occurs, it outputs an alarm signal to the equipment control center.

[0031] The above-mentioned mechanical contact encoder is suitable for segmented gear adjustment, and has a simple structure, low cost and strong vibration resistance.

[0032] In this embodiment, the rotary encoder is a photoelectric encoder, which includes a light source, a grating disk, and a detector. The light source is used to generate a constant light source to illuminate the grating disk. The grating disk rotates coaxially with the rotating column to convert the rotational torque into an incremental optical signal, and the detector outputs a corresponding pulse signal.

[0033] Specifically, in this embodiment, the photoelectric encoder encodes the pulse signal and outputs a digital signal to the control circuit board 50, thereby providing high-resolution feedback and achieving higher measurement accuracy.

[0034] The above-mentioned use of non-contact electronic encoders is merely an example and not the only method. For example, capacitive encoders, magnetic encoders, etc. can also be used, which have no mechanical wear, long life and are resistant to pollution, and are suitable for humid / dusty environments.

[0035] In this embodiment, a locking member 60 is also included. The rotating column of the knob encoder 40 passes through the second through hole 33 of the mounting panel 30 and is locked in position by the locking member 60.

[0036] In this embodiment, the locking member 60 includes a fastening nut, and the rotating column passes through the fastening nut and is locked onto the mounting panel 30.

[0037] Specifically, in this embodiment, the rotary encoder 40 is locked onto the mounting panel 30 by the locking member 60. The structure is simple and can make the rotary encoder securely mounted on the mounting panel 30, avoiding the risk of damage to the circuit board caused by only mounting it on the control circuit board 50.

[0038] In this embodiment, the locking member 60 further includes a cotter pin. When the knob device is used for fixed gear adjustment, the fastening nut locks the rotating column and then inserts the cotter pin. The cotter pin is used to restrict the relative movement of the rotating column, thereby fixing the knob device at a certain gear position.

[0039] Specifically, the knob device designed in this embodiment can lock the knob panel by using a simple locking component 60, making operation convenient.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A portable dismountable knob device, characterized by, include: The following components are installed sequentially from top to bottom: a knob cap, a top cover, a mounting panel, a knob encoder, and a control circuit board. The knob cap is mounted on the mounting panel through a first through hole on the top cover. The mounting panel has a first fastening position and a second fastening position. The knob cap is fastened to the top cover through the first fastening position and to the knob cap through the second fastening position. The knob encoder is electrically connected to the control circuit board and has a rotating column at its upper end. The mounting panel has a second through hole, and the inner wall of the knob cap has a mating hole on the same vertical axis as the second through hole. The mating hole is coupled to the outer surface of the rotating column. The rotating column of the knob encoder is installed by pressing it through the second through hole and then pressing it into the mating hole.

2. The convenient disassembly and assembly knob device according to claim 1, characterized in that: The knob cap has a mating hole and the rotary encoder has a meshing transmission gear. The rotary encoder is used to convert the rotational torque of the knob cap into a corresponding electrical signal and output it to the control circuit board.

3. The convenient disassembly and assembly knob device according to claim 2, characterized in that: The rotary encoder includes a gear transmission assembly, a potentiometer, and a signal processing module. The gear transmission assembly transmits the rotational torque to the resistor rail of the potentiometer. The potentiometer converts the resistance increment into a voltage signal output based on the displacement of the sliding contact on the resistor rail. The signal processing module includes a filtering circuit, an amplification circuit, and an AD conversion circuit, which filters and amplifies the voltage signal and converts it into a digital signal output to the control circuit board.

4. The convenient disassembly and assembly knob device according to claim 3, characterized in that: The transmission gear is equipped with a fiber optic grating sensor, which is used to monitor the meshing state and wear of the transmission gear in real time, and transmits the detection signal to the control circuit board through an optical fiber.

5. The convenient disassembly and assembly knob device according to claim 3, characterized in that: The rotary encoder is a photoelectric encoder, which contains a light source, a grating disk, and a detector. The light source is used to generate a constant light source to illuminate the grating disk. The grating disk rotates coaxially with the rotating column to convert the rotational torque into an incremental optical signal, and the detector outputs a corresponding pulse signal.

6. The convenient disassembly and assembly knob device according to claim 2 or 5, characterized in that: It also includes a locking element, which locks the position of the rotary encoder's rotating column after it passes through the second through hole in the mounting panel.

7. The convenient disassembly and assembly knob device according to claim 6, characterized in that: The locking element includes a fastening nut, and the rotating column passes through the fastening nut and locks onto the mounting panel.

8. The convenient disassembly and assembly knob device according to claim 7, characterized in that: The locking member further comprises a split pin, which is inserted into the split pin after the fastening nut locks the rotating column when the knob device is used to fix the gear adjustment, and the split pin is used to limit the relative movement of the rotating column, thereby fixing the knob device at a certain gear.

Images