Knob control device and equipment

Abstract

The utility model discloses a knob control device and equipment. The knob control device comprises a mounting shell, a bearing, a knob and an encoder, the mounting shell is provided with a guide convex part, and the guide convex part is provided with an avoiding space; the inner ring of the bearing is sleeved on the outer side of the guide convex part and can be in sliding fit with the guide convex part along the axis direction of the inner ring; the knob is fixedly connected with the outer ring of the bearing; the encoder comprises a device body and a handle rod, the device body is fixed on the mounting shell, one end of the handle rod is movably connected with the device body, the other end of the handle rod penetrates through the avoiding space and is connected with the knob, and the central axis of the handle rod coincides with the central axis of the bearing; the knob can drive the handle rod to rotate around the central axis of the knob and drive the handle rod to move in the direction of the central axis of the knob. According to the scheme, the problem that the swing amplitude of the knob of the knob control device is large can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of control buttons, in particular to a knob control device and equipment. Background Art

[0002] Knob control devices are provided on equipment such as automobiles and smart home appliances, and the knob control devices can control corresponding functions of the equipment. For example, the knob control device can control functions such as the volume and temperature of the equipment. In order to improve the use performance of the knob control device, the pressing function has been added to the knob control devices on the market. Adding the pressing function to the knob control device has undoubtedly become more and more mainstream.

[0003] In the related art, the knob control device includes an encoder and a knob. The encoder includes a device main body and a handle rod. One end of the handle rod is movably connected to the device main body, and the other end is connected to the knob. The knob can drive the handle rod to rotate and press relative to the device main body.

[0004] However, in order for the encoder to achieve the rotation and pressing functions, a gap needs to be reserved between the handle rod and the device main body, which results in problems of axial clearance and axial rotational swing of the handle rod itself. Therefore, when a knob is sleeved outside the handle rod, since the outer diameter of the knob is often much larger than the radial dimension of the handle rod of the encoder, the shaking feeling reflected on the knob will be amplified, which easily causes large-amplitude swing of the knob, and further gives the user the feeling that the knob is not firmly fixed and loose. Therefore, the swing amplitude of the knob of the knob control device in the related art is relatively large, resulting in poor use performance of the knob control device. Summary of the Utility Model

[0005] The utility model discloses a knob control device and equipment to solve the problem of large swing amplitude of the knob of the knob control device.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A knob control device includes a mounting housing, a bearing, a knob and an encoder;

[0008] The mounting housing is provided with a guiding convex part, and the guiding convex part is provided with an avoidance space; the inner ring of the bearing is sleeved outside the guiding convex part, and the inner ring of the bearing can be slidably matched with the guiding convex part along its axial direction;

[0009] The knob is fixedly connected to the outer ring of the bearing; the encoder includes a device body and a handle rod, the device body is fixed on the mounting shell, one end of the handle rod is movably connected to the device body, the other end of the handle rod passes through the avoidance space and is connected to the knob, and the central axis of the handle rod coincides with the central axis of the bearing; wherein the knob can drive the handle rod to rotate around its central axis and drive the handle rod to move in the direction of its central axis.

[0010] A device comprises the above-mentioned knob control device.

[0011] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0012] In the knob control device disclosed by the utility model, the knob is fixedly connected to the outer ring of the bearing. Since the structure of the bearing is relatively precise, there is almost no noticeable swing between the inner ring of the bearing and its outer ring; and the inner ring of the bearing and the guide protrusion on the mounting housing are guided and matched along the axial direction of the bearing, so as to ensure that the knob can only be displaced along the axial direction of the bearing. In this scheme, the bearing and the limiting protrusion can limit the axial clearance of the handle rod and the clearance along its axial rotation, thereby reducing the swing amplitude of the knob, thereby improving the performance of the knob control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of the knob control device disclosed in the embodiment of the utility model;

[0015] Figure 2 This is an exploded view of the first knob control device disclosed in the embodiment of the utility model;

[0016] Figure 3 This is a structural schematic diagram of a knob of the first knob control device disclosed in an embodiment of the utility model in a pressed position;

[0017] Figure 4 This is a structural schematic diagram of the knob of the first knob control device disclosed in an embodiment of the utility model being in a triggering position;

[0018] Figure 5 An exploded view of a second knob control device disclosed in an embodiment of the utility model;

[0019] Figure 6Schematic diagram of the second knob control device disclosed in the embodiment of the present invention when the knob is in the pressed position;

[0020] Figure 7 Schematic diagram of the second knob control device disclosed in the embodiment of the present invention when the knob is in the triggered position.

[0021] Explanation of reference numerals:

[0022] 100 - Knob control device, 110 - Installation housing, 1101 - Accommodation cavity, 1102 - Opening, 111 - First housing, 112 - Second housing, 120 - Bearing, 121 - Inner ring, 122 - Outer ring, 130 - Knob, 131 - Accommodation groove, 132 - First buckle, 133 - First limiting protrusion, 140 - Encoder, 141 - Device body, 142 - Shaft rod, 150 - Guide protrusion, 1501 - Avoidance space, 151 - Extension protrusion, 160 - Reset member, 161 - Elastic member, 162 - First magnetic member, 163 - Second magnetic member, 170 - Second limiting protrusion, 180 - Circuit board. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] The technical solutions disclosed in each embodiment of the present invention will be described in detail below with reference to the drawings.

[0025] As Figures 1 to 7 shown, an embodiment of the present invention discloses a knob control device 100, and the disclosed knob control device 100 includes an installation housing 110, a bearing 120, a knob 130 and an encoder 140.

[0026] The installation housing 110 provides an installation basis for other components of the knob control device 100. The installation housing 110 is provided with a guide protrusion 150, and the guide protrusion 150 is provided with an avoidance space 1501. The inner ring 121 of the bearing 120 is sleeved outside the guide protrusion 150, and the inner ring 121 of the bearing 120 can be slidably matched with the guide protrusion 150 along its axial direction. At this time, the bearing 120 can be displaced relative to the installation housing 110 along its axial direction.

[0027] The knob 130 is fixedly connected to the outer ring 122 of the bearing 120. The knob 130 can rotate relative to the mounting housing 110 about the central axis of the bearing 120. Since the outer ring 122 and the inner ring 121 of the bearing 120 are in rolling fit through rolling elements, the outer ring 122 and the inner ring 121 can rotate relative to each other. Therefore, the knob 130 can rotate together with the outer ring 122 of the bearing 120, so that the knob 130 can rotate relative to the mounting housing 110.

[0028] In addition, the inner ring 121 of the bearing 120 and the guiding convex part 150 are in guiding fit along the axial direction of the bearing 120. Therefore, during the pressing process of the knob 130, the knob 130 drives the outer ring 122 of the bearing 120 to move. The outer ring 122 of the bearing 120 drives the inner ring 121 of the bearing 120 to move through the cage. At the same time, the guiding convex part 150 can guide the inner ring 121 of the bearing 120, so as to guide the knob 130. At this time, the guiding convex part 150 and the inner ring 121 of the bearing 120 are in small clearance fit, so that the clearance between the inner ring 121 of the bearing 120 and the guiding convex part 150 in the radial direction is small, thereby restricting the radial displacement of the inner ring 121 of the bearing 120.

[0029] The encoder 140 includes a device body 141 and a handle rod 142. The device body 141 is fixed on the mounting housing 110. One end of the handle rod 142 is movably connected to the device body 141, and the other end of the handle rod 142 passes through the avoidance space 1501 and is connected to the knob 130. The central axis of the handle rod 142 coincides with the central axis of the bearing 120. Among them, the knob 130 can drive the handle rod 142 to rotate about its central axis and drive the handle rod 142 to move along the direction of its central axis. At this time, the handle rod 142 can rotate relative to the device body 141 about the direction of its central axis and can also move relative to the device body 141 along the direction of its central axis. The specific structure of the encoder 140 is a known basis and is not limited in this article.

[0030] In the embodiment disclosed in the present application, when a rotational motion is applied to the knob 130, the knob 130 can drive the handle 142 to rotate relative to the device body 141 around its central axis. Since the structure of the bearing 120 is relatively precise, there is almost no noticeable swing amplitude between the inner ring 121 and the outer ring 122 of the bearing 120. In addition, since the radial displacement of the bearing 120 is limited by the guide protrusion 150, the swing of the handle 142 along the axial rotation direction is limited. Therefore, the user experience is reflected in that the swing amplitude of the knob 130 is significantly reduced. Similarly, when a pressing motion is applied to the knob 130, the knob 130 can drive the handle 142 to move along its axis. The bearing 120 and the guide protrusion 150 can limit the axial clearance of the handle 142 and the direction of rotation around the axial direction, thereby avoiding the situation where the knob 130 swings greatly during the pressing process.

[0031] In the embodiment disclosed in the present application, the bearing 120 and the limiting protrusion can limit the axial gap and the axial rotation gap of the handle rod 142 itself, thereby reducing the shaking amplitude of the knob 130 and improving the performance of the knob control device 100.

[0032] In addition, the knob 130 disclosed in the present application realizes rotational motion through the bearing 120, and the friction coefficient of the bearing 120 is smaller, so the rotation is smoother, thereby improving the user experience. In addition, the bearing 120 can realize the stepless adjustment of the knob 130, so that the knob 130 has a better rotation effect.

[0033] In the above solution, the distance between the mounting housing 110 and the knob 130 needs to be greater than the pressing stroke of the handle 142 of the encoder 140, so as to avoid the risk of the handle 142 not being pressed into place. The distance between the mounting housing 110 and the knob 130 here refers to the distance between the surface of the mounting housing 110 facing the knob 130 and the end surface of the knob 130 facing the mounting housing 110.

[0034] In the above embodiment, the device body 141 has a reset device, which can reset the handle 142, thereby driving the knob 130 to reset. Specifically, the knob 130 can switch between a pressing position and a triggering position relative to the mounting housing 110 along the moving direction of the handle 142. The pressing position of the knob 130 here is the position when the knob 130 is subjected to a pressing force. At this time, the reset device provides a supporting force for the handle 142, and the handle 142 supports the knob 130. When the user applies a pressing force to the knob 130, the pressing force on the knob 130 is transmitted to the handle 142, so that the handle 142 moves in the direction toward the device body 141 until it moves to the triggering position. When the knob 130 is in the triggering position, the function corresponding to the pressing operation of the encoder 140 is triggered. When the pressing force on the knob 130 is removed, the reset device can drive the handle 142 to reset, and the handle 142 drives the knob 130 to move along the side away from the device body 141 until the knob 130 returns to the pressed position.

[0035] In the above embodiment, the weight of the knob 130 and the bearing 120 are all borne by the handle rod 142, so they are only reset and supported by the reset device on the device body 141, which has poor support, thereby affecting the reset of the knob 130, thereby reducing the performance of the knob control device 100.

[0036] Based on this, in another optional embodiment, the knob control device 100 may further include a reset member 160, and the inner ring 121 of the bearing 120 may be connected to the mounting housing 110 via the reset member 160. The knob 130 may switch between a pressing position and a triggering position relative to the mounting housing 110 along the moving direction of the handle 142, and the knob 130 may overcome the force of the reset member 160 to switch the knob 130 from the pressing position to the triggering position; the force of the reset member 160 may switch the knob 130 from the triggering position to the pressing position.

[0037] In this solution, a reset member 160 is separately provided between the inner ring 121 of the bearing 120 and the mounting housing 110, so as to increase the supporting force and the reset force on the knob 130 and the bearing 120, so that the knob 130 is subjected to a greater supporting force, which makes it less likely to affect the reset operation of the knob 130, thereby improving the performance of the knob control device 100.

[0038] In another alternative, if Figures 2 to 4As shown, the reset member 160 can be an elastic member 161. The elastic member 161 can be sleeved outside the guiding convex portion 150. One end of the elastic member 161 can be connected to the inner ring 121 of the bearing 120, and the other end of the elastic member 161 is connected to the mounting housing 110. This solution has a simple structure and is convenient for installation and manufacturing. Optionally, the elastic member 161 can be an elastic structure such as a spring or a metal shrapnel. Of course, the elastic member 161 can also be other structures, which are not limited in this article.

[0039] In the above embodiment, the deformation amount of the elastic member 161 can be greater than the maximum displacement pressed by the encoder 140. When the external force applied to the knob 130 is withdrawn, under the action of the elastic member 161 restoring deformation, the knob 130 and the bearing 120 are axially reset as a whole.

[0040] In another alternative embodiment, as Figures 5 to 7 shown, the reset member 160 can include a first magnetic member 162 and a second magnetic member 163. The first magnetic member 162 can be disposed on the inner ring 121 of the bearing 120, and the second magnetic member 163 can be disposed on the mounting housing 110. The first magnetic member 162 and the second magnetic member 163 are opposite to each other with the same pole. At this time, the magnetic force between the first magnetic member 162 and the second magnetic member 163 is a magnetic repulsive force. That is to say, the second magnetic member 163 drives the bearing 120 to be suspended relative to the mounting housing 110 through the first magnetic member 162. When the user applies a pressing force, the distance between the second magnetic member 163 and the first magnetic member 162 decreases. When the pressing force is removed, the second magnetic member 163 drives the first magnetic member 162 to move away from the second magnetic member 163, so that the bearing 120 and the knob 130 are reset.

[0041] In this solution, the reset after the knob 130 is pressed is performed by the magnetic repulsive force between the first magnetic member 162 and the second magnetic member 163. The magnetic force between the first magnetic member 162 and the second magnetic member 163 is relatively stable. Therefore, the first magnetic member 162 and the second magnetic member 163 have a longer service life, and thus have a better reset effect, so it is not easy to affect the pressing function of the knob control device 100, thereby improving the reliability of the knob control device 100.

[0042] In the above solution, the number of the first magnetic members 162 and the second magnetic members 163 can be multiple, and the multiple first magnetic members 162 and the multiple second magnetic members 163 are arranged in one-to-one correspondence.

[0043] In the above embodiment, the distance between the first magnetic member 162 and the second magnetic member 163 can be greater than the maximum pressing stroke of the encoder 140. When the external force applied to the knob 130 is withdrawn, under the action of the like-pole repulsion between the first magnetic member 162 and the second magnetic member 163, the knob 130 and the bearing 120 are axially displaced and reset as a whole.

[0044] Optionally, the first magnetic member 162 and the second magnetic member 163 may be electromagnets or permanent magnets, and this is not limited in this article.

[0045] In another alternative solution, both the first magnetic member 162 and the second magnetic member 163 may be annular structures, and both the first magnetic member 162 and the second magnetic member 163 are sleeved on the outside of the guiding convex portion 150. In this solution, the first magnetic member 162 and the second magnetic member 163 in this solution are more convenient to implement the installation operation, and thus further simplify the structure of the knob control device 100.

[0046] In another alternative solution, the knob 130 is provided with a receiving groove 131, and at least a part of the bearing 120 is located in the receiving groove 131. In this solution, the knob 130 can wrap the bearing 120, thus avoiding the risk of the bearing 120 being exposed and damaged.

[0047] In one solution, the outer ring 122 of the bearing 120 may be in interference fit with the receiving groove 131.

[0048] In another alternative solution, a first buckle 132 and a first limiting protrusion 133 may be provided in the receiving groove 131. There may be a gap between the first buckle 132 and the inner side wall of the receiving groove 131. The buckle head of the first buckle 132 is located at one end of the first buckle 132 facing the notch of the receiving groove 131. The outer ring 122 of the bearing 120 is clamped between the buckle head of the first buckle 132 and the first limiting protrusion 133. At this time, the upper edge of the outer ring 122 of the bearing 120 faces one end of the bottom of the receiving groove 131, and the lower edge of the outer ring 122 of the bearing 120 faces one end of the notch of the receiving groove 131. Therefore, the buckle head of the first buckle 132 abuts against the lower edge of the outer ring 122, and the first limiting protrusion 133 abuts against the upper edge of the outer ring 122. Therefore, the outer ring 122 is clamped between the buckle head of the first buckle 132 and the first limiting protrusion 133.

[0049] In this solution, the method of buckle fastening is convenient for the installation and disassembly of the bearing 120 and the knob 130, and thus reduces the assembly and disassembly difficulty of the bearing 120 and the knob 130. In addition, there is a certain distance between the first buckle 132 and the inner side wall of the receiving groove 131, which is not easy to make the first buckle 132 abut against the inner wall of the receiving groove 131, thus facilitating the deformation of the first buckle 132.

[0050] In the above embodiments, when the acting force of the reset member 160 is greater than the fastening force of the device body 141 on the handle rod 142, the handle rod 142 is likely to protrude or separate from the device body 141 excessively, and thus it is likely to cause the risk of damage to the knob control device 100.

[0051] Based on this, in another alternative solution, a second limiting protrusion 170 may be provided on the outer sidewall of the end of the guiding protrusion 150 facing away from the mounting housing 110. The inner ring 121 of the bearing 120 is located between the second limiting protrusion 170 and the mounting housing 110, and the second limiting protrusion 170 and the inner ring 121 of the bearing 120 are in limiting cooperation along the central axis direction of the handle rod 142. The upper edge of the inner ring 121 of the bearing 120 faces one end of the bottom of the accommodating groove 131, and the lower edge of the inner ring 121 of the bearing 120 faces one end of the notch of the accommodating groove 131. At this time, the second limiting protrusion 170 can abut against the upper edge of the inner ring 121, so as to limit the inner ring 121, and further prevent the handle rod 142 from protruding excessively or detaching, thus further improving the reliability and safety performance of the knob control device 100.

[0052] In an alternative solution, the guiding protrusion 150 may be an annular protrusion. At this time, a second limiting protrusion 170 is provided on the outer sidewall of the end of the annular protrusion facing away from the mounting housing 110. At this time, the inner ring area of the annular protrusion is the avoidance space 1501 mentioned above.

[0053] In another alternative embodiment, the guiding protrusion 150 includes at least two extending protrusions 151 arranged at intervals along the circumference of the bearing 120, and the at least two extending protrusions 151 enclose an avoidance space 1501. The number of the second limiting protrusions 170 is multiple, and a second limiting protrusion is provided on the surface of each extending protrusion 151 on the side facing away from the avoidance space 1501. At this time, an extending protrusion 151 and its corresponding second limiting protrusion 170 form a second buckle, and the second limiting protrusion 170 here is the buckle head of the second buckle. Therefore, the guiding protrusion 150 is a segmented buckle structure.

[0054] In this solution, the guiding protrusion 150 is a segmented buckle structure, and the influence between adjacent buckles of the segmented buckle structure is small, so it is convenient for each buckle to deform, thereby reducing the assembly difficulty between the inner ring 121 of the bearing 120 and the guiding protrusion 150.

[0055] Optionally, as Figure 2 shown, the guiding protrusion 150 includes four second buckles. Of course, the number of the second buckles may also be other numbers, which are not limited in this article.

[0056] In the above embodiment, the knob 130 and the device body 141 may be arranged on the same side of the mounting housing 110. At this time, the device body 141 is arranged on the surface of the mounting housing 110, and the device body 141 may be located in the avoidance space 1501.

[0057] Alternatively, in another alternative solution, the mounting housing 110 may be a plate-shaped structural member. In this case, the device body 141 and the knob 130 may be located on opposite sides of the mounting housing 110. An opening 1102 is formed in the mounting housing 110. At this time, the end of the handle rod 142 facing away from the device body 141 extends from the opening 1102 towards the end where the knob 130 is located.

[0058] In another alternative embodiment, the mounting housing 110 may include a first housing 111 and a second housing 112. The first housing 111 and the second housing 112 enclose a receiving cavity 1101. The first housing 111 may be provided with an opening 1102. The avoidance space 1501 may communicate with the receiving cavity 1101 through the opening 1102. The device body 141 may be located in the receiving cavity 1101. Both the bearing 120 and the knob 130 may be located outside the receiving cavity 1101. A guiding convex portion 150 may be provided on the surface of the first housing 111 on the side facing away from the receiving cavity 1101. Here, the guiding convex portion 150 is also located outside the receiving cavity 1101. The end of the handle rod 142 facing away from the device body 141 passes through the opening 1102 and the avoidance space 1501 and is connected to the knob 130.

[0059] In this solution, the modularization of the knob control device 100 is realized, thereby expanding the usage scenarios of the knob control device 100. In addition, the first housing 111 and the second housing 112 can also protect the encoder 140, thereby avoiding the risk of damage to the encoder due to exposure.

[0060] In the above embodiments, the knob control device 100 is generally applied to a device, and the encoder 140 needs to be electrically connected to the circuit structure on the device body of the device. At this time, the knob control device 100 needs to be installed at a fixed position to meet the electrical connection requirements between the encoder 140 and the device body, so that the installation position of the knob control device 100 is relatively fixed.

[0061] In another alternative solution, the knob control device 100 may further include a circuit board 180. The circuit board 180 is disposed in the receiving cavity 1101, and the device body 141 may be disposed on the surface of the circuit board 180 on the side facing the first housing 111. At this time, the knob control device 100 has a circuit board 180 for electrically connecting to the encoder 140, so that the installation position of the knob control device 100 is relatively flexible.

[0062] Based on the knob control device 100 of any of the above embodiments of the present application, an embodiment of the present application further discloses a device, and the disclosed device includes the knob control device 100 of any of the above embodiments.

[0063] The device disclosed in this application further includes a device body, and the device body includes, but is not limited to, components such as a device housing, a circuit structure, and a display structure. The knob 130 control device can be provided on the device body.

[0064] In the above embodiments of the present utility model, the focus is on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the brevity of the text, it will not be elaborated here.

[0065] The above are only the embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A knob control device, characterized in that: It includes a mounting housing (110), a bearing (120), a knob (130) and an encoder (140); The mounting housing (110) is provided with a guide protrusion (150), and the guide protrusion (150) is provided with an avoidance space (1501); the inner ring (121) of the bearing (120) is sleeved on the outer side of the guide protrusion (150), and the inner ring (121) of the bearing (120) can be slidably matched with the guide protrusion (150) along the axial direction thereof; The knob (130) is fixedly connected to the outer ring (122) of the bearing (120); the encoder (140) includes a device body (141) and a handle rod (142); the device body (141) is fixed to the mounting shell (110); one end of the handle rod (142) is movably connected to the device body (141); the other end of the handle rod (142) passes through the avoidance space (1501) and is connected to the knob (130); the central axis of the handle rod (142) coincides with the central axis of the bearing (120); wherein the knob (130) can drive the handle rod (142) to rotate around its central axis and drive the handle rod (142) to move in the direction of its central axis.

2. The knob control device according to claim 1, characterized in that: The knob control device (100) further comprises a reset member (160), and the inner ring (121) of the bearing (120) is connected to the mounting shell (110) via the reset member (160); the knob (130) can be switched between a pressing position and a triggering position relative to the mounting shell (110) along the moving direction of the handle rod (142), and the knob (130) can overcome the force of the reset member (160) so that the knob (130) can be switched from the pressing position to the triggering position; the force of the reset member (160) can switch the knob (130) from the triggering position to the pressing position.

3. The knob control device according to claim 2, characterized in that: The reset member (160) is an elastic member (161), which is sleeved on the outer side of the guide protrusion (150), one end of the elastic member (161) is connected to the inner ring (121) of the bearing (120), and the other end of the elastic member (161) is connected to the mounting housing (110).

4. The knob control device according to claim 2, characterized in that: The reset member (160) comprises a first magnetic member (162) and a second magnetic member (163); the first magnetic member (162) is arranged on the inner ring (121) of the bearing (120); the second magnetic member (163) is arranged on the mounting housing (110); the first magnetic member (162) and the second magnetic member (163) have the same poles facing each other.

5. The knob control device according to claim 4, characterized in that: The first magnetic member (162) and the second magnetic member (163) are both annular structures, and the first magnetic member (162) and the second magnetic member (163) are both mounted around the outer side of the guide protrusion (150).

6. The knob control device according to claim 1, characterized in that: The knob (130) is provided with a receiving groove (131), and at least a portion of the bearing (120) is located in the receiving groove (131).

7. The knob control device according to claim 6, characterized in that: A first buckle (132) and a first limiting protrusion (133) are provided in the receiving groove (131); a gap is provided between the first buckle (132) and the inner side wall of the receiving groove (131); a buckle head of the first buckle (132) is located at one end of the notch of the first buckle (132) facing the receiving groove (131); and an outer ring (122) of the bearing (120) is clamped between the buckle head of the first buckle (132) and the first limiting protrusion (133).

8. The knob control device according to claim 1, characterized in that: A second limiting protrusion (170) is provided on the outer wall of one end of the guide protrusion (150) facing away from the mounting shell (110), and the inner ring (121) of the bearing (120) is located between the second limiting protrusion (170) and the mounting shell (110), and the second limiting protrusion (170) and the inner ring (121) of the bearing (120) are limitedly matched along the direction of the central axis of the handle rod (142).

9. The knob control device according to claim 8, characterized in that: The guiding protrusion (150) comprises at least two extending protrusions (151) arranged at intervals along the circumference of the bearing (120), and at least two of the extending protrusions (151) enclose the avoidance space (1501); the number of the second limiting protrusions (170) is multiple, and the surface of each extending protrusion (151) facing away from the avoidance space (1501) is provided with the second limiting protrusion (170).

10. The knob control device according to claim 1, characterized in that: The mounting shell (110) comprises a first shell (111) and a second shell (112); the first shell (111) and the second shell (112) enclose a receiving cavity (1101); the first shell (111) is provided with an opening (1102); the avoidance space (1501) is connected to the receiving cavity (1101) through the opening (1102); the device body (141) is located in the receiving cavity (1101); the bearing (120) and the knob (130) are both located outside the receiving cavity (1101); the surface of the first shell (111) on a side away from the receiving cavity (1101) is provided with the guide protrusion (150); the end of the handle rod (142) away from the device body (141) passes through the opening (1102) and the avoidance space (1501) and is connected to the knob (130).

11. The knob control device according to claim 10, characterized in that: The knob control device (100) further comprises a circuit board (180), wherein the circuit board (180) is arranged in the accommodating cavity (1101), and the device body (141) is arranged on a surface of the circuit board (180) facing the first housing (111).

12. A device, characterized in that: The invention comprises the knob control device (100) as claimed in any one of claims 1 to 11.

Images