WO2019127366A1 - Knob structure, focusing knob, remote control, and pan-tilt - Google Patents

Abstract

A knob structure (100, 100a) comprising an operating assembly (10), a rotating assembly (20, 20a), and a fixing assembly (30, 30a). The operating assembly is connected to the rotating assembly; the fixing assembly carries the operating assembly and the rotating assembly; the operating assembly can drive the rotating assembly to rotate relative to the fixing assembly; a gap is provided between the rotating assembly and the fixing assembly; the operating assembly is used for adjusting the size of the gap. The knob structure can isolate the rotating assembly from the fixing assembly to avoid the rubbing surfaces of the rotating assembly and the fixing assembly from directly contacting each other, thereby avoiding the problem of jerky hand feeling of rotation caused by increased friction.

Description

Knob structure, focus knob, remote control and pan/tilt Technical field

The invention relates to the technical field of electronic photographing, in particular to a knob structure, a focus knob, a remote controller and a pan/tilt.

Background technique

The knob structure is a device for manual adjustment by the user, and is widely used in many fields where manual control is required. The universal knob structure includes a rotating component and a fixed component. The user manually adjusts the rotation of the rotating component relative to the fixed component, and controls the external device by adjusting the relative rotation angle between the rotating component and the fixed component. The focus knob is a knob for the user to manually adjust the focal length. It is widely used in the field of electronic shooting. However, after the long-term use of the traditional focus knob, the rotating component and the fixed component are easily contacted directly on the friction surface, and the frictional force increases. Focusing on the problem of sensation.

Summary of the invention

In view of this, it is necessary to provide an improved knob structure, a focus knob, a remote controller, and a pan/tilt.

The present invention provides a knob structure including an operation assembly, a rotation assembly, and a fixing assembly, the operation assembly being coupled to the rotation assembly, the fixing assembly carrying the operation assembly and the rotation assembly, the operation The assembly is configured to rotate the rotating assembly relative to the fixed assembly, a gap is disposed between the rotating assembly and the fixed assembly, and the operating assembly is configured to adjust a size of the gap.

Further, the operating assembly includes an adjustment member, the adjustment member and the rotation assembly are fixed, and the rotation assembly includes a spring that acts on the adjustment member in the operation assembly.

Further, the operating component further includes a knob, the adjusting member is connected to the knob and the rotating component, the knob is provided with a protrusion, and the spring sleeves the protrusion formed on the knob.

Further, the operating component further includes a non-slip wheel, the outer side of the anti-slip wheel is provided with a pattern for anti-slip, the anti-slip wheel is sleeved with the knob, and the anti-slip wheel and the knob are fixed to each other.

Further, the rotating component includes a rotating shaft, one end of the rotating shaft extends into the protrusion formed on the knob, and the other end is fixed at the fixing component, and the rotating shaft and the protrusion are sleeved on In the spring, the adjusting member and the rotating shaft are fixed.

Further, the rotating assembly includes a rotating member, the rotating shaft passes through the rotating member and is fixed to each other, the knob sleeves the rotating member, the knob and the rotating member are fixed to each other, and the rotating member sleeve The fixing component is provided.

Further, the rotating assembly includes a friction member, one end of the friction member acts on the spring, and the other end is fitted to the rotating member, and the rotating shaft passes through the friction member.

Further, a friction plate is disposed in the rotating member, one end of the friction plate acts on the spring, and the rotating shaft passes through the friction plate.

Further, the fixing assembly includes a fixing member and a bearing, the bearing sleeves the rotating shaft, the bearing is fixed in the fixing member, the rotating shaft passes through the fixing member, and the fixing member connects the a rotating member that is rotatable relative to the fixing member.

Further, the fixing member includes a substrate and an extending portion mounted on the substrate, the rotating member is sleeved on the extending portion, and the substrate is provided with a groove.

Further, the fixing assembly further includes a control board, and the control board is coupled to the fixing member.

Further, the extending portion is perpendicular to the substrate, and an upper end surface of the extending portion is a plane, and the rotating member contacts the fixing member through the end surface.

Further, the extending portion is inclined to the substrate, and a side surface of the extending portion is a sloped surface, and the rotating member contacts the fixing member through the side surface.

The present invention further provides a focusing knob, wherein the focusing knob adopts the knob structure according to any one of the above, the focusing knob further comprises a detecting component, wherein the detecting component is installed in the knob structure, The focus knob is used to adjust the focal length of the external device.

Further, the detecting member is a potentiometer.

The present invention also provides a remote controller comprising a remote controller body and a focus knob mounted on the body, the focus knob being the focus knob of any of the above, the focus knob being used for Adjust the focal length of the remote control.

The present invention also provides a pan/tilt head, comprising: a pan/tilt head body, a photographing device mounted on the body, and a focusing knob mounted on the body, the focus knob being any of the above A focus knob for adjusting a focal length of the photographing device.

The knob structure provided by the invention can isolate the rotating component from the fixing component, and avoid the direct contact between the rotating component and the fixing component on the friction surface, thereby avoiding the problem that the frictional force is increased and the rotating hand feels squeaky.

DRAWINGS

1 is a perspective view of a focus knob in a first embodiment of the present invention.

2 is an exploded perspective view of the focus knob of FIG. 1 from another perspective.

3 is a perspective view of the focusing knob shown in FIG. 1 assembled.

4 is a cross-sectional view showing the assembled focus knob of FIG. 1 after assembly.

Figure 5 is a perspective view of the rotating member and the friction member of the focusing knob shown in Figure 1.

FIG. 6 is a schematic structural view of a rotating member in the focusing knob shown in FIG. 1. FIG.

FIG. 7 is an exploded perspective view of a focus knob in a second embodiment of the present invention.

Figure 8 is an exploded perspective view of the focus knob of Figure 7 from another perspective.

FIG. 9 is a cross-sectional view showing the assembled focus knob of FIG. 7 after assembly.

Main component symbol description

Knob structure	100, 100a
Operating component	10
Anti-pulley	11
Internal tooth	111
Knob	12
External tooth	121
Cavity chamber	122
Through hole	123, 212, 222
Adjustment piece	13
Rotating component	20, 20a
Rotating piece	21, 21a
Bulge	211, 124, 214
Boss	213
Groove	2131, 221, 3211

Friction member	twenty two
Friction plate	22a
Rotating shaft	twenty three
Turntable	231
Transmission department	2311
Rotating part	2312
Convex	2313
spring	twenty four
Fixed component	30, 30a
Bearing	31
Fastener	32, 32a
Substrate	321,321a
Extension	322, 322a
Positioning department	323
Screw hole	324, 332
Cover	33
Opening	331
Test piece	34

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that when a component is referred to as being "installed on" another component, it can be directly on the other component or a component that is in the middle. When a component is considered to be "set to" another component, it can be placed directly on another component or possibly with a centered component.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

1 to FIG. 4, FIG. 1 is an exploded perspective view of the knob structure 100 according to the first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the knob structure 100 of FIG. 1 from another perspective. FIG. 1 is a perspective view of the assembled knob structure 100, and FIG. 4 is a cross-sectional view of the knob structure 100 of FIG. The knob structure 100 is used for manual control by the user. The user controls the external device by adjusting the rotation angle of the knob structure 100. The knob structure 100 includes an operation assembly 10, a rotation assembly 20 and a fixing assembly 30, and the operation assembly 10 is a user operation knob structure. The 100-hour direct contact member is for manual operation by the user, and the rotating assembly 20 is rotatable relative to the fixed assembly 30. The fixed assembly 30 is used to carry the rotating assembly 20 and the operating assembly 10, and the user rotates the operating assembly 10 and drives the rotating assembly 20 to be relatively fixed. The assembly 30 is rotated, and the knob structure 100 can transmit the rotation angle of the rotating assembly 20 relative to the fixed assembly 30 to an external device (not shown), thereby achieving control of the external device.

The operation assembly 10 includes a non-slip wheel 11 and a knob 12, and the anti-slip wheel 11 is sleeved on the knob 12. The anti-slip wheel 11 has a substantially hollow circular shape, and the outer side is provided with a pattern for preventing slip, and the inner side is provided with internal teeth 111 and a non-slip wheel. 11 is used for user operation and prevents the user from slipping during manual operation.

The knob 12 has a hollow structure, and the outer side of the knob 12 is provided with external teeth 121. The external teeth 121 opened on the knob 12 and the inner teeth 111 formed on the anti-skid wheel 11 cooperate with each other for realizing mutual mutual interaction between the anti-skid wheel 11 and the knob 12. The accommodating cavity 122 is configured to receive the rotating component 20 and the fixing component 30. The knob 12 is further provided with a plurality of through holes 123 in the radial direction, and the through hole 123 is Threaded fasteners (not shown) cooperate to secure the rotating assembly 20.

The user rotates the anti-skid wheel 11 and the anti-slip wheel 11 rotates the knob 12 under the cooperation of the inner tooth 111 and the outer tooth 121. The knob 12 and the rotating assembly 20 are fixed and rotate the rotating assembly 20, so that the operating assembly 10 drives the rotating assembly 20 to rotate. Transmission process.

In the present embodiment, the connection between the anti-slip wheel 11 and the knob 12 is carried out by a rack drive. It can be understood that in other embodiments, the anti-skid wheel 11 and the knob 12 can also be screwed, riveted, or the like, as long as the anti-skid wheel 11 and the knob 12 can be mutually driven.

In the embodiment, the anti-slip wheel 11 and the knob 12 are two components. In this case, the anti-slip wheel 11 can cover the through hole 123 formed in the knob 12, and the through hole 123 can be directly exposed on the side of the knob structure 100, so that the knob structure can be made. The appearance of 100 is more beautiful. It can be understood that in other embodiments, the anti-skid wheel 11 and the knob 12 can also be integrally formed. In this case, the internal teeth 111 opened on the anti-skid wheel 11 and the external teeth 121 opened on the knob 12 can be omitted, and the through hole is opened on the knob 12 . 123 penetrates the side of the anti-skid wheel 11.

The rotating component 20 is mounted on the fixing component 30, and is accommodated in the accommodating cavity 122 opened by the operating component 10. The rotating component 20 includes a rotating component 21 and a friction component 22, and the rotating component 21 and the friction component 22 are connected to each other. 21 is substantially hollow cylindrical, and one end thereof extends outward in a direction perpendicular to its axial direction and forms a protrusion 211. The protrusion 211 is mounted on the fixing assembly 30 and carries the operation assembly 10, and the position of the corresponding hole 123 on the rotating member 21 is further The through hole 212 is opened, and the through hole 212 formed in the rotating member 21 and the through hole 123 opened in the knob 12 cooperate with a threaded fastener (not shown) to realize mutual interaction between the rotating assembly 20 and the operating assembly 10. fixed.

In the present embodiment, the rotating member 21 and the knob 12 are connected by a fastener. It can be understood that in other embodiments, other connection manners such as riveting, gluing, and the like may be adopted between the rotating member 21 and the knob 12.

5 to FIG. 6 , FIG. 5 is a schematic perspective view of the rotating member 21 of the knob structure 100 of FIG. 1 , and FIG. 6 is a schematic structural view of the rotating member 21 of the knob structure 100 of FIG. 1 , and the rotating member 21 is hollow. A boss 213 is formed in the cavity, and the boss 213 is used to engage the recess 221 formed in the friction member 22, thereby achieving mutual fixation between the friction member 22 and the rotating member 21.

The groove 221 formed in the friction member 22 and the boss 213 mounted on the rotating member 21 are fitted to each other. The depth of the groove 221 is greater than the thickness of the boss 213, so that the friction member 22 and the boss 213 are frictionally engaged. There is a gap between the piece 22 and the fixing assembly 30, and the shape of the gap is consistent with the shape of the boss 213 and the groove 221, and the gap can be stored and installed between the rotating assembly 20 and the fixing assembly 30 for providing a rotational damping force. The damping grease and the damping grease are stored in the gap surrounded by the friction member 22, the rotating member 21 and the fixing member 30. The damping grease is wetted on the friction surface of the rotating assembly 20 and the fixing assembly 30, and the rotating assembly 20 can be isolated. The fixing component 30 prevents the rotating component 20 from directly contacting the fixing component 30 on the friction surface, thereby avoiding the problem that the frictional force is increased and the rotating hand feels squeaky.

In the present embodiment, the bosses 213 are substantially in a "ten" shape intersecting each other, and have a substantially circular shape at the center. The friction members 22 are substantially disk-shaped, and the grooves 221 and the shape of the bosses 213 are formed on the friction members 22. Consistently, they are in a "ten" shape intersecting each other. The center of the groove 221 is also circular. The shape of the boss 213 and the groove 221 is designed to be "ten" shaped to increase the contact area between the two. The stability of the rotating member 21 and the friction member 22 when driven. It can be understood that in other embodiments, the groove 221 and the boss 213 may be other conditions as long as the groove 221 and the boss 213 can be fitted to each other, and the depth of the groove 221 is greater than the thickness of the boss 213, so that the friction A gap is left between the member 22 and the fixing member 30.

The rotating assembly 20 further includes a rotating shaft 23, and a substantially middle position of the rotating shaft 23 extends outward in a direction perpendicular to its axis to form a turntable 231. The turntable 231 has a substantially "L" shape as viewed perpendicularly to its axial direction, and the turntable 231 includes a transmission portion 2311. And the rotating portion 2312, the transmission portion 2311 has a substantially "D" shape as viewed in the axial direction thereof, and one side thereof forms a cutting plane parallel to the axial direction. The transmission portion 2311 is fitted to the groove 2131 formed at a substantially central portion of the boss 213. The shape of the groove 2131 is identical to the cross section of the transmission portion 2311. The rotating member 21 passes through the groove 2131 and the turntable 231 which are fitted to each other when rotating. The rotation of the rotating shaft 23 is driven to realize the transmission between the rotating member 21 and the rotating shaft 23. The rotating portion 2312 of the turntable 231 is substantially cylindrical, and the rotating portion 2312 extends outward from the side away from the transmission portion 2311 and forms a flange 2313. The rotating portion 2312 and the bearing 31 in the fixing assembly 30 cooperate with each other, and the bearing 31 is sleeved on the rotation. One end of the bearing 2312 and one end of the bearing 31 abuts against the flange 2313. The bearing 31 is fixed to the rotating shaft 23 by the rotating portion 2312 and the flange 2313, and the bearing 31 is used to realize the relative rotation between the rotating shaft 23 and the fixing assembly 30.

It can be understood that in other embodiments, the groove 2131 formed on the boss 213 and the transmission portion 2311 on the turntable 231 may be other shapes such as a square shape, and may also be screwed, glued, or the like, as long as the boss is used. The 213 and the turntable 231 can be driven and fixed to each other.

A through hole 222 is defined in a substantially central portion of the friction member 22, and the through hole 222 is used for the shaft 23 to pass therethrough. The rotating shaft 23 sequentially passes through the rotating member 21 and the friction member 22, and one end thereof abuts against the fixing assembly 30, and the other end It is mounted on the knob 12 in the operating assembly 10. The end surface of the knob 12 extends toward the inside of the knob 12 in the axial direction and forms a projection 124. The projection 124 has a substantially annular shape and has a hollow cavity. One end of the rotation shaft 23 is embedded in the hollow cavity of the projection 124. The end of the rotating shaft 23 adjacent to the operating assembly 10 is provided with a screw hole in the axial direction thereof, and the screw hole is screwed with the adjusting member 13 fitted on the knob 12, thereby realizing mutual fixation of the rotating shaft 23 and the knob 12. In the present embodiment, the adjusting member 13 is an adjusting screw. It will be appreciated that the adjustment member 13 can also employ other types of threaded fasteners.

In the present embodiment, the friction member 22 and the rotating member 21 are two members. At this time, the friction member 22 is sleeved in the boss 213 provided on the rotating member 21. It can be understood that in other embodiments, the friction member 22 and the rotating member 21 can also constitute a component, and the friction member 22 and the boss 213 are connected to each other and integrally formed.

The rotating assembly 20 further includes a spring 24 having one end sleeved at a projection 124 provided on the knob 12 and the other end abutting against the friction member 22. The elastic force of the spring 24 itself acts on the friction member 22 and the knob 12, which not only increases the frictional resistance between the friction member 22 and the rotating member 21, but also improves the focusing feel, and can also prevent it by its own pre-compacting action. The knob structure 100 has a situation in which the focus feel deteriorates after a long period of use. It will be appreciated that in other embodiments, the spring 24 can be replaced by other resilient members.

The adjusting member 13 is used to adjust the pressing force of the friction member 22, and the pressing force of the friction member 22 can be increased when the adjusting member 13 is screwed, and the pressing force of the friction member 22 can be reduced when the adjusting member 13 is screwed out. The adjusting member 13 and the spring 24 cooperate with each other, and the pressing force of the friction member 22 can be effectively adjusted to improve the focusing feel.

The fixing assembly 30 is used to carry the operating assembly 10 and the rotating assembly 20. In addition to the bearing 31 mentioned above, the fixing assembly 30 further includes a fixing member 32 and a cover plate 33, and the bearing 31 is mounted in the fixing member 32, the fixing member One end of the 32 is housed in the rotating member 21 adjacent to the friction member 22, and the other end is connected to the cover plate 33.

The fixing member 32 is substantially a hollow cylinder, and a damping grease is disposed between the fixing member 32 and the rotating member 21. When the rotating member 21 rotates relative to the fixing member 32, the damping grease can provide resistance during rotation, and the fixing member 32 includes the substrate 321 And an extending portion 322 mounted on the substrate 321 , one end of the substrate 321 is connected to the cover plate 33 , and the other end carries the extending portion 322 . The bearing 31 in the fixing assembly 30 is fixed in the hollow cavity of the extending portion 322 , and the rotating member 21 is sleeved on the The extension 322 of the fixture 32 is on. The substrate 321 is provided with one or more recesses 3211 for receiving excess damping grease between the fixing member 32 and the rotating member 21 due to the squeeze, so as to prevent the damping grease from overflowing to the outside of the knob structure 100. The groove 3211 and the protrusion 214 provided on the rotating member 21 cooperate with each other, so that the limit of the rotation angle of the rotating member 21 relative to the fixing member 32 can be achieved.

In this embodiment, the groove 3211 has a substantially circular arc shape, and the number of the grooves 3211 is two. The two grooves 3211 are relatively evenly spaced on the substrate 321 , and the number of the protrusions 214 is one, and one of the protrusions 214 is fitted to one of them. Inside the groove 3211. It can be understood that in other embodiments, the groove 3211 may be other shapes and numbers, and the number of the protrusions 214 may be two or more, as long as the grooves 3211 and the protrusions 214 can achieve the rotation limit. The groove 3211 can realize the function of storing the damping grease.

The cover plate 33 has a substantially disk shape, and the cover plate 33 defines an opening 331. The opening 331 and the positioning portion 323 provided on the fixing member 32 cooperate with each other for realizing the positioning of the cover plate 33 and the fixing member 32 during installation. A plurality of screw holes 332 are defined in the cover plate 33. The screw holes 332 cooperate with the fastening members 32 to form the screw holes 324 of the cover plate 33 and the fixing member 32 under the assembly of the threaded fasteners (not shown). Fixed to each other.

In the embodiment, the number of the openings 331 is two, and the two openings 331 are oppositely disposed at two ends of the cover plate 33. The number of the positioning portions 323 is also two, and each of the positioning portions 323 corresponds to one opening 331. It is to be understood that in other embodiments, the number of the opening 331 and the positioning portion 323 may be one or more, as long as the number of the opening 331 and the positioning portion 323 are kept the same.

In the present embodiment, the cover plate 33 and the fixing member 32 are fixed to each other by a screwing direction. It can be understood that in other embodiments, the cover plate 33 and the fixing member 32 can be fixed to each other by riveting, gluing or the like.

The following describes the assembly process of the knob structure 100: the rotating shaft 23 first passes through the bearing 31, so that the bearing 31 is positioned on the turntable 231 of the rotating shaft 23, and the rotating shaft 23 passes through the fixing member 32 together with the bearing 31, so that the bearing 31 is fixed to the extending portion 322. In the cavity, the end of the rotating shaft 23 close to the bearing 31 is fastened into the cover 33, and the cover 33 is screwed to the base plate 321 of the fixing member 32, thereby realizing the assembly process of the fixing assembly 30;

Then, the rotating shaft 23 is sequentially passed through the rotating member 21, the friction member 22 and the spring 24, so that the friction member 22 and the rotating member 21 are fitted to each other, and the protrusion 214 on the rotating member 21 is embedded in the recess 3211 of the fixing member 32. Then, the end of the rotating shaft 23 is abutted against the hollow cavity of the protrusion 124 on the knob 12, and the spring 24 is sleeved on the outer side of the protrusion 124. At this time, the knob 12 and the rotating member 21 are screwed and fixed to each other, and then the adjusting member is fixed. 13 is screwed into the rotating shaft 23 to achieve mutual fixation between the rotating assembly 20 and the fixing assembly 30;

Finally, the anti-skid wheel 11 is sleeved on the outside of the knob 12, so that the anti-slip wheel 11 and the knob 12 are highly flush and both abut against the protrusion 211 on the rotating member 21, thereby completing the operation between the operating assembly 10 and the rotating assembly 20. Fixed to each other.

The following describes the transmission process of the knob structure 100: the user manually rotates the anti-skid wheel 11 , and the anti-slip wheel 11 rotates the knob 12 by the mutual cooperation of the internal teeth 111 and the external teeth 121 , and the knob 12 and the rotating member 21 are screwed together, and the rotating member 21 is rotated. The friction member 22 and the rotating shaft 23 are engaged with each other, so that the knob 12 can drive the rotating member 21 to rotate, and the rotating member 21 drives the friction member 22 and the rotating shaft 23 to rotate, so that the operating assembly 10 drives the rotating assembly 20 to rotate relative to the fixed assembly 30, and the knob The structure 100 then transmits the rotational angle of the rotating assembly 20 relative to the fixed assembly 30 to an external device (not shown) to effect control of the external device.

The knob structure 100 can be directly connected to the external device by the rotating shaft 23 by mechanical transmission, and the external device can be directly controlled by the rotating shaft 23, and the rotating shaft 23 can pass through the cover 33 and be connected to the external device; the knob structure 100 can also pass the detection. The sensing unit rotates the rotation angle of the rotating component 20 relative to the fixing component 30, and the detecting component transmits the rotation angle of the rotating component 20 relative to the fixing component 30 to the external device by means of an electrical signal, a magnetic signal, etc., thereby realizing control of the external device. The detecting member can be directly installed inside the knob structure 100 as a component in the knob structure 100. The detecting member can also be installed outside the knob structure 100 as long as the detecting member can sense the rotating component 20 relative to the fixed component. The angle of rotation of 30 is transmitted to the external device.

The adjustment process of the rotational resistance of the knob structure 100 is described below:

The knob structure 100 can effectively adjust the rotation resistance by the adjusting member 13 and the spring 24. When the rotation resistance needs to be increased, the adjusting member 13 is screwed in, so that the compression amount of the spring 24 is increased, and the gap between the rotating assembly 20 and the fixing assembly 30 is reduced. Small, the mutual pressing force between the rotating assembly 20 and the fixed assembly 30 is increased, the damping grease pressure is increased to increase the rotational resistance; when the rotational resistance needs to be reduced, the adjusting member 13 is reversely rotated, so that the spring 24 The amount of compression is reduced, the gap between the rotating assembly 20 and the fixed assembly 30 is correspondingly increased, the mutual pressing force between the rotating assembly 20 and the fixed assembly 30 is reduced, and the damping grease pressure is reduced to reduce the rotational resistance.

Please refer to FIG. 7 to FIG. 9 . FIG. 7 is an exploded perspective view of the knob structure 100 a according to the second embodiment of the present invention. FIG. 8 is an exploded perspective view of the knob structure 100 a of FIG. 7 from another perspective. FIG. 7 is a cross-sectional view of the assembled knob structure 100a.

In the second embodiment of the present invention, the functions of the operation assembly 10, the rotation assembly 20 and the fixing assembly 30 are the same as those of the first embodiment, and the shapes and connection relationships of the anti-skid wheel 11, the knob 12 and the adjustment member 13 in the operation assembly 10 are In the same manner as the first embodiment, the shape and connection relationship of the rotating shaft 23 and the spring 24 in the rotating assembly 20a are the same as those in the first embodiment, and the shape and connection relationship of the bearing 31 and the cover 33 in the fixing assembly 30a and the first embodiment are the same. The same, no further description here.

The second embodiment differs from the first embodiment in the rotating member 21a and the fixing member 32a. The rotating member 21a in the present embodiment simultaneously has the functions of the rotating member 21 and the friction member 22 in the first embodiment, and the rotating member 21a The hollow cavity is provided with a friction plate 22a through which the rotating member 21a is in frictional contact with the fixing member 32a of the fixing assembly 30a. The friction plate 22a is a flat plate, which is similar to the friction member 22 of the first embodiment. The effect is similar.

The fixing member 32a includes a substrate 321a and an extending portion 322a. The substrate 321a in the present embodiment has the same structure and connection relationship as the substrate 321 in the first embodiment, and the extending portion 322a is a hollow circular table having a sloped surface, and the extending portion 322a is sleeved. In the rotating member 21a.

The rotating member 21a and the fixing member 32a in the second embodiment are in contact with each other with a tapered inclined surface which changes the planar damping contact in the first embodiment to the inclined surface damping in the second embodiment by changing the shape of the contact surface of the damping grease. The contact enables the knob structure 100a in the second embodiment to obtain a more delicate damping change during use, which can improve the resolution and accuracy of the adjustment.

In the second embodiment, there is also a gap between the friction plate 22a on the rotating member 21a and the extending portion 322a on the fixing member 32a, and the gap can be stored and installed between the rotating assembly 20a and the fixing member 30a for providing rotation. Damping force damping grease, the damping grease is wetted on the friction surface of the rotating component 20a and the fixing component 30a, and can isolate the rotating component 20a and the fixing component 30a, avoiding the direct contact of the rotating component 20a and the fixing component 30a on the friction surface, avoiding friction The force increases and the problem of rotating the hand feels awkward.

It can be understood that the assembly process of the knob structure 100a in the second embodiment is similar to the assembly process of the knob structure 100 in the first embodiment, the transmission process of the knob structure 100a in the second embodiment and the knob structure 100 in the first embodiment. The transmission process is similar, and the adjustment process of the rotation resistance of the knob structure 100a in the second embodiment is similar to the adjustment process of the rotation resistance of the knob structure 100 in the first embodiment, and will not be described herein.

According to the above-mentioned knob structure provided by the present invention, a gap is disposed between the rotating component and the fixed component, and the gap can store a damping grease for providing a rotational damping force, and the wetting is on the friction surface of the rotating component and the fixed component, and can be rotated independently The component and the fixing component prevent the rotating component from directly contacting the fixing component on the friction surface, thereby avoiding the problem that the frictional force is increased and the rotating hand feels awkward.

The present invention also provides a focusing knob using the above-mentioned knob structure, the focusing knob is used for adjusting the focal length of the external photographic imaging device, and the focusing knob includes a detecting member 34, and the detecting member 34 is sleeved away from the adjusting member 13 At one end, the detecting member 34 can transmit the rotation angle of the rotating shaft 23, that is, the rotation angle of the rotating assembly 20 with respect to the fixed assembly 30 to the external photographic imaging apparatus, and the external photographic imaging apparatus adjusts the focal length according to the rotation angle, thereby completing the focusing process.

In this embodiment, the detecting member 34 is disposed at a substantially center of the cover plate 33, and the detecting member 34 is of a type of a potentiometer. At this time, the detecting member 34 rotates the rotating shaft 23, that is, the rotating assembly 20 relative to the fixing assembly 30. The rotation angle is converted into an electric signal, and the rotation angle is reflected by the change of the electric signal and transmitted to the external photographic imaging apparatus, and the external photographic imaging apparatus adjusts the focal length according to the electric signal, thereby realizing the focusing process.

It can be understood that the detecting member 34 is not limited to being mounted only on the cover plate 33. In other embodiments, the detecting member 34 can also be mounted on other components of the focusing knob, and the type of the detecting member 34 is not limited to only using For the potentiometer, other electronic components capable of sensing the rotation angle such as a photoelectric angle sensor can also be used.

In this embodiment, the focus knob is applied to an aerial camera on an unmanned aerial vehicle. It can be understood that in other embodiments, the knob structure 100 is not limited to an aerial camera that is only applied to an unmanned aerial vehicle, and can also be applied to other shooting situations that require manual focusing, such as mapping, microscopy, photographic imaging, and the like.

The focusing knob provided by the present invention adopts the above-mentioned focusing structure, and a gap is disposed between the rotating component and the fixing component, and the gap can store a damping grease for providing a rotational damping force, and the damping grease is infiltrated in the rotating component and fixed The friction surface of the component can isolate the rotating component and the fixing component, and has a good focusing feel when focusing.

It can be understood that the knob structure provided by the present invention is not limited to the case where only the focus adjustment is needed, and the knob structure provided by the present invention can also be applied to other applications requiring manual control.

The present invention also provides a remote controller using the above-mentioned focusing knob, the focusing knob is mounted on the remote controller, and the focusing knob is used to adjust the focal length of the remote controller.

The present invention also provides a pan/tilt head using the above-mentioned focusing knob, the focusing knob is mounted on the pan/tilt head, and the pan/tilt head is provided with a photographing device, and the focus knob is used to adjust the cloud The focal length of the shooting equipment installed on the stage.

The knob structure provided by the invention has a gap between the rotating component and the fixing component, and the gap can store a damping grease for providing a rotational damping force, and the damping grease is wetted on the friction surface of the rotating component and the fixing component, and can be insulated Rotating the component and the fixing component to avoid direct contact between the rotating component and the fixing component on the friction surface, avoiding the problem of increased friction and rotating hand feeling; the focusing knob of the knob structure provided by the invention has good focusing The remote control of the above-mentioned focusing knob provided by the present invention can effectively adjust the focal length thereof; the pan/tilt provided by the present invention using the above-mentioned focusing knob can effectively adjust the focal length of the photographing device mounted on the pan/tilt.

It should be understood by those skilled in the art that the above embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the scope of the spirit of the invention Changes and modifications are intended to fall within the scope of the invention as claimed.

Claims (17)

1. A knob structure, characterized in that: the knob structure comprises an operating component, a rotating component and a fixing component, the operating component is connected to the rotating component, the fixing component carries the operating component and the rotating component, The operating assembly is configured to move the rotating assembly relative to the fixed assembly, a gap is disposed between the rotating assembly and the fixed assembly, and the operating assembly is configured to adjust a size of the gap.
2. A knob structure according to claim 1, wherein said operating member includes an adjusting member, and said adjusting member and said rotating member are fixed.
3. The knob structure according to claim 2, wherein the operating component further comprises a knob, the adjusting member is connected to the knob and the rotating component, and the knob structure is provided with an elastic member, the elastic member Both ends of the pair act on the knob and the rotating assembly, respectively.
4. The knob structure according to claim 3, wherein the operating assembly further comprises a non-slip wheel, the outer side of the anti-slip wheel is provided with a pattern for preventing slip, and the anti-slip wheel is sleeved with the knob, the anti-slip wheel And the knobs are fixed to each other.
5. The knob structure according to claim 3, wherein the rotating assembly comprises a rotating shaft, one end of the rotating shaft extends into the knob and is connected to the adjusting member, and the other end is fixed to the fixing assembly, The elastic member is sleeved on the rotating shaft.
6. A knob structure according to claim 5, wherein said rotating assembly comprises a rotating member, said rotating shaft passes through said rotating member and is fixed to each other, said knob is sleeved with said rotating member, said knob and said The rotating members are fixed to each other, and the rotating member sleeves the fixing assembly.
7. A knob structure according to claim 6, wherein said rotating assembly comprises a friction member, one end of said friction member abuts said elastic member, and the other end is fitted to said rotating member, said shaft being worn Pass the friction member.
8. The knob structure according to claim 6, wherein the rotating member is provided with a friction plate, one end of the friction plate abuts against the elastic member, and the rotating shaft passes through the friction plate.
9. The knob structure according to claim 7 or 8, wherein the fixing assembly comprises a fixing member and a bearing, the bearing sleeves the rotating shaft, the bearing is fixed in the fixing member, and the rotating shaft is worn Through the fixing member, the rotating member is rotatable relative to the fixing member.
10. The knob structure according to claim 9, wherein the fixing member comprises a substrate and an extension portion mounted on the substrate, the rotating member is sleeved on the extending portion, and the substrate is opened a groove for receiving grease stored in the knob structure.
11. A knob structure according to claim 10, wherein said fixing assembly further comprises a control board, said control board being coupled to said fixing member.
12. The knob structure according to claim 11, wherein the extending portion is perpendicular to the substrate, the upper end surface of the extending portion is a plane, and the rotating member is in contact with the fixing member through the upper end surface .
13. The knob structure according to claim 11, wherein the extending portion is inclined to the substrate, and a side surface of the extending portion is a sloped surface, and the rotating member contacts the fixing member through the side surface.
14. A focusing knob, wherein the focusing knob adopts the knob structure according to any one of claims 1 to 13, the focusing knob further comprises a detecting component, wherein the detecting component is mounted on the Within the knob structure, the focus knob is used to adjust the focus.
15. A focus knob according to claim 14, wherein said detecting member is a potentiometer.
16. A remote controller comprising a remote controller body and a focus knob mounted on the body, wherein the focus knob is the focus knob of any one of claims 14-15, the adjustment The focus knob is used to adjust the focus.
17. A pan/tilt head, comprising: a pan/tilt head body; a photographing device mounted on the body; and a focusing knob mounted on the body, wherein the focus knob is any one of claims 14-15 The focus knob described in the item, the focus knob is used to adjust a focal length of the photographing device.

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