Toothed disc structure for pan-tilt locking unit and pan-tilt locking unit

Abstract

The utility model discloses a fluted disc structure for a pan-tilt locking unit and the pan-tilt locking unit, and the fluted disc structure for the pan-tilt locking unit comprises a mandrel; the fluted disc module is rotatably arranged around the mandrel; and at least one part of the first mechanism is fixedly arranged relative to the mandrel so as to prevent the fluted disc module from rotating relative to the mandrel. Therefore, non-rigid connection between the mandrel and the fluted disc module is achieved while the fluted disc structure is not prone to rotating relative to the mandrel through the first mechanism, and the problem that when the positioning column is inserted into a tooth groove of a fluted disc of the fluted disc module, the tooth groove is prone to being abraded due to instant hard contact between the positioning column and the fluted disc module can be solved.

Description

Technical Field

[0001] This utility model relates to the field of gimbal technology, specifically to a toothed disc structure and a gimbal locking unit for a gimbal locking unit. Background Technology

[0002] In existing technology, the gear disk used for the gimbal locking unit is fixed relative to the rotating shaft. However, this configuration has the following problems:

[0003] 1. When the positioning pin is inserted into the tooth groove, the toothed disc and the spindle are rigidly connected, lacking buffering, which causes the positioning pin to make instantaneous hard contact with the tooth groove of the toothed disc, generating impact force. Long-term use can easily cause tooth groove deformation or positioning pin wear.

[0004] 2. The gear meshing clearance of the fixed gear plate cannot be eliminated, and there is backlash when switching between forward and reverse rotation, which causes the actual position of the positioning pin inserted into the tooth groove of the gear plate to deviate from the theoretical target position;

[0005] 3. When manually rotating the gimbal, inertia can easily cause overshoot, requiring repeated fine adjustments to align with the locking position; and the sudden change in resistance when the positioning pin inserts into the tooth groove of the gear plate can cause a "sticking" sensation. Utility Model Content

[0006] The main reason for at least one of the aforementioned problems is that the connection between the gear disc and the spindle is a rigid connection. In order to solve at least one of the aforementioned problems, according to one aspect of the present invention, a gear disc structure for a gimbal locking unit is provided.

[0007] The gear structure for the gimbal locking unit includes a spindle; a gear module rotatably disposed about the spindle; and a first mechanism, at least partially fixed relative to the spindle to impede rotation of the gear module relative to the spindle. In this application, impeding rotation of the gear module relative to the spindle does not mean that the gear module cannot rotate relative to the spindle at all, but rather that it increases the resistance to rotation of the gear module relative to the spindle.

[0008] Therefore, by using the first mechanism to prevent the gear disk structure from easily rotating relative to the spindle, a non-rigid connection between the spindle and the gear disk module is achieved. When the positioning pin on the base of the gimbal locking unit is inserted into the tooth groove of the gear disk body of the gear disk module, the spindle can still rotate relative to the base. This avoids the problem of easy wear of the tooth groove due to instantaneous hard contact when the positioning pin is inserted into the tooth groove of the gear disk body of the gear disk module.

[0009] In some embodiments, the gear disk module includes a gear disk body sleeved on the outer periphery of the spindle and rotatably disposed around the spindle; the first mechanism includes at least one first plate and a first medium, the first plate being fixedly disposed relative to the spindle, and the first medium being disposed between the first plate and the gear disk body, the first medium being configured to impede the rotation of the gear disk body relative to the first plate around the spindle. In this application, impeding the rotation of the gear disk body relative to the spindle does not mean that the gear disk body cannot rotate relative to the spindle at all, but rather that it increases the resistance to the rotation of the gear disk body relative to the spindle.

[0010] Therefore, when the toothed disc body rotates relative to the spindle, the action of the first plate, the toothed disc body, and the first medium makes it difficult for the toothed disc body to rotate easily relative to the spindle, thus achieving a non-rigid connection between the spindle and the toothed disc body.

[0011] In some embodiments, the gear plate module includes a gear plate body sleeved on the outer periphery of the spindle and rotatably disposed around the spindle; the first mechanism includes at least one first plate, at least one second plate, and a first medium, the first plate being fixedly disposed relative to the spindle, the second plate being fixedly disposed relative to the gear plate body, and a first medium being disposed between the first plate and the second plate, the first medium being configured to prevent the second plate from rotating relative to the first plate around the spindle.

[0012] Therefore, when the toothed disc body rotates relative to the spindle, the action of the first plate, the second plate, and the first medium makes it difficult for the toothed disc body to rotate easily relative to the spindle, thus achieving a non-rigid connection between the spindle and the toothed disc body.

[0013] In some embodiments, at least one of the first and second plates is provided with at least two plates, and at least one of the first and second plates is sleeved on the mandrel; a second plate is provided between at least one set of adjacent first plates. Thus, the damping effect can be improved by increasing the number of friction plates (increasing the number of first and / or second plates, and increasing the area of ​​interaction between the friction plates).

[0014] In some embodiments, at least one of the first and second plates is provided with at least two plates, and at least one of the first and second plates is sleeved on the mandrel; a first plate is provided between at least one set of adjacent second plates. Thus, the damping effect can be improved by increasing the number of friction plates (increasing the number of first and / or second plates, and increasing the area of ​​interaction between the friction plates).

[0015] In some embodiments, a first gap exists between the gear disc body and the first plate, and a second gap exists between the first plate and the second plate, along the axial direction of the mandrel. A first medium is disposed in at least one of the first gap and the second gap, and at least one of the gear disc body, the first plate, and the second plate is coaxially disposed with the mandrel. Therefore, by ensuring the content of the first medium in the first gap and the second gap, the damping effect can be ensured; furthermore, a large contact area can be ensured between the first medium and at least one of the first plate, the second plate, and the gear disc body, thereby improving the damping effect.

[0016] In some embodiments, the first medium is a damper capable of preventing the first sheet from rotating relative to the second sheet about the spindle. Thus, the damper can provide a damping effect when the first sheet intends to rotate relative to the second sheet about the spindle.

[0017] In some implementations, the damper is an amorphous damper. This allows for the adaptation of various shapes for the first and second gaps.

[0018] Preferably, the damping material is damping grease. This allows the excellent adhesion of the damping grease to fill in assembly errors and gaps, reducing noise and vibration; while maintaining excellent cushioning, sealing, corrosion protection, and damping properties.

[0019] In some embodiments, the first medium is a solid grease. This reduces the probability of leakage of the first medium; moreover, the solid first medium can be used in a wider operating temperature range of -40°C to 55°C.

[0020] In some embodiments, the mandrel includes a first shaft body and a second shaft body coaxially connected to clamp the first plate between them when they are connected. Thus, even when the mandrel and the first plate are manufactured separately (making them different materials), the first plate can be quickly installed and replaced by connecting and disassembling the first shaft body and the second shaft body, improving the production efficiency of the gear structure for the gimbal locking unit and reducing its production cost.

[0021] In some embodiments, the geared disc module further includes a pressure plate that rotates about a spindle, the pressure plate being connected to the geared disc body to form an accommodating space between them for receiving the first sheet and the first medium. Thus, the placement position of the first sheet can be clearly defined by the geared disc body and the pressure plate.

[0022] In some embodiments, the gear structure for the gimbal locking unit further includes at least one of a first spacer and a second spacer. When the first shaft body is connected to the second shaft body, the first plate is clamped between the two by at least one of the first spacer and the second spacer. The gear body is adapted to the outer periphery of the second spacer, and the pressure plate is adapted to the outer periphery of the first spacer.

[0023] Therefore, not only can the first piece be clamped when the first shaft body and the second shaft body are connected by the first and second spacers, but the first medium can also be prevented from leaking between the gear disc body and the pressure plate and the mandrel by adapting the gear disc body to the outer periphery of the first spacer and the pressure plate to the outer periphery of the second spacer.

[0024] In some embodiments, the gear plate module further includes at least one set of positioning plates, wherein positioning plates are provided between the pressure plate and the gear plate body, between the pressure plate and the second plate, between adjacent second plates, and between the second plate and the gear plate body, so as to clamp the second plate between the pressure plate and the gear plate body when the pressure plate and the gear plate body are connected; the positioning plates and the connection between the pressure plate and the gear plate body are located near the outer periphery of the gear plate body, and there is a fourth gap between the positioning plates and the outer periphery of the first plate.

[0025] Therefore, not only can the thickness of the positioning plate be adjusted to create a first gap between the toothed disc body and the first plate, a second gap between the first plate and the second plate, and a fifth gap between the first plate and the pressure plate, so as to facilitate the placement of the first medium in the first gap, the second gap, and the fifth gap; it can also prevent the toothed disc body from being unable to rotate relative to the spindle due to the first plate contacting the positioning plate.

[0026] In some embodiments, the gear disk structure for the gimbal locking unit further includes at least one set of rotary bearings. When the first shaft body is connected to the second shaft body, the rotary bearings abut against at least one of the first spacer and the second spacer, thereby clamping the first piece between the first shaft body and the second shaft body through the first spacer and the second spacer. Thus, while ensuring a compact structure and high assembly efficiency, the gear disk structure for the gimbal locking unit can be rotatably connected to other components (e.g., the base) of the gimbal locking unit via the rotary bearings.

[0027] In some embodiments, the first mechanism further includes at least one set of spacers disposed between two adjacent sets of first sheets, so that a second gap exists between the first and second sheets by adjusting the thickness of the spacers. Preferably, a third gap exists between the second sheet and the outer periphery of the spacers. This prevents the spacers from preventing the second sheet from rotating around the opposing mandrel.

[0028] In some embodiments, the first shaft body and the second shaft body are detachably connected to facilitate the installation and replacement of at least one of the rotary bearing, the first spacer, the second spacer, the first plate, and the spacer.

[0029] In some embodiments, the positioning piece is a ring coaxially arranged with the gear disc body. Thus, when the gear disc body is connected to the pressure plate, the positioning piece clamps the second piece between them, preventing leakage of the first medium from between the gear disc body and the pressure plate and the positioning piece, as well as between adjacent positioning pieces.

[0030] According to another aspect of the present invention, a gimbal locking unit is provided.

[0031] The gimbal locking unit includes the aforementioned gear structure for gimbal locking; a base sleeved on the gear structure; a gear wheel rotatable around the spindle of the gear structure; and a locking mechanism disposed on the base and the gear wheel. The locking mechanism is configured such that when the gear wheel rotates around the spindle to a set position, the locking mechanism can lock the gear wheel and the gear module of the gear structure relative to the base.

[0032] Therefore, when the gear shift wheel rotates to the set position relative to the spindle, the gear shift wheel can be locked relative to the base by the locking mechanism. At this time, the spindle can still rotate relative to the base, but under the action of the first mechanism, there is resistance to the rotation of the spindle relative to the base.

[0033] In some embodiments, at least one of the base and the gear shift wheel is mounted on the spindle via at least one set of rotary bearings, so that at least one of the base and the gear shift wheel can rotate about the spindle.

[0034] In some embodiments, the locking mechanism includes a first elastic element, a positioning post, and at least one set of positioning holes. The first elastic element is disposed on the base and configured to apply elastic force to the positioning post along the extension direction of the spindle. The positioning holes are disposed on the gear shift wheel and are located on the circumference of the gear shift wheel with the first central axis of the spindle as the center and corresponding to the positioning post, so that when the gear shift wheel rotates around the spindle to the point where the positioning hole corresponds to the position of the positioning post, the positioning post can be inserted into the positioning hole under the elastic force of the first elastic element.

[0035] Therefore, when the gear wheel rotates around the spindle to the set position, the positioning pin is inserted into the positioning hole under the elastic force of the first elastic element, and the positioning pin can be located in the tooth groove of the toothed disc body of the toothed disc structure to achieve locking between the base and the gear wheel; moreover, by setting the number of positioning holes, the gear wheel can be locked relative to the base after rotating relative to the spindle by a set angle, and the set angle is the central angle formed by the line connecting the center of the two positioning holes and the first central axis of the spindle.

[0036] In some embodiments, the positioning post includes a post body and a blocking part that are fixedly disposed relative to each other. The blocking part is configured such that when the post body is inserted into the positioning hole, the blocking part is located in the tooth groove of the toothed disc body, and when the post body is removed from the positioning hole, the blocking part is located on the side of the toothed disc body facing the first elastic member.

[0037] Preferably, the blocking part has a first conical surface and / or the tooth groove of the gear disk body has a second conical surface. The first conical surface is inclined toward the gear disk body from the end away from the first elastic member to the end close to the first elastic member, and the second conical surface is inclined toward the positioning post from the end close to the first elastic member to the end away from the first elastic member. Thus, the first and / or second conical surfaces can guide the blocking part to move into the tooth groove of the gear disk body under the elastic force of the first elastic member, ensuring that the blocking part can smoothly move into or out of the tooth groove of the gear disk body, thereby ensuring the service life of the blocking part and the gear disk body. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the toothed disc structure for the gimbal locking unit according to the first embodiment of the present invention.

[0039] Figure 2 for Figure 1 The diagram shows another view of the toothed disc structure used for the gimbal locking unit.

[0040] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the toothed disc structure used for the gimbal locking unit along the AA direction.

[0041] Figure 4 for Figure 3 The diagram shows an enlarged view of the toothed disc structure at point B used for the gimbal locking unit.

[0042] Figure 5 for Figure 1 The diagram shows the disassembled state of the toothed disc structure used for the gimbal locking unit.

[0043] Figure 6 This is a cross-sectional schematic diagram of the toothed disc structure for the gimbal locking unit according to the second embodiment of the present invention.

[0044] Figure 7 This is a cross-sectional schematic diagram of the toothed disc structure for the gimbal locking unit according to the third embodiment of the present invention.

[0045] Figure 8 This is a cross-sectional schematic diagram of the toothed disc structure for the gimbal locking unit according to the fourth embodiment of this utility model.

[0046] Figure 9 This is a cross-sectional schematic diagram of the toothed disc structure for the gimbal locking unit according to the fifth embodiment of the present invention.

[0047] Figure 10 This is a schematic diagram of the gimbal locking unit according to one embodiment of the present invention;

[0048] Figure 11 for Figure 10 A schematic diagram of the gimbal locking unit from another perspective;

[0049] Figure 12 for Figure 11 A schematic cross-sectional view of the gimbal locking unit along the CC direction with the locking mechanism in the unlocked state.

[0050] Figure 13 for Figure 12 A magnified schematic diagram of the gimbal locking unit at point D.

[0051] Figure 14 An enlarged cross-sectional view of the locking mechanism of the gimbal locking unit in the locked state;

[0052] Figure 15 for Figure 10 The diagram shows the disassembled state of the gimbal locking unit.

[0053] Figure 16 for Figure 15 A structural schematic diagram of the gimbal locking unit in disassembled state from another perspective.

[0054] Figure 17 for Figure 15 The diagram shows another view of the disassembled state of the gimbal locking unit.

[0055] Figure 18 for Figure 17 The diagram shows a cross-sectional view of the gimbal locking unit along the EE direction. Detailed Implementation

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0057] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising" or "including" include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The terminology used herein is generally that commonly used by those skilled in the art; in case of any discrepancy with commonly used terminology, the terminology used herein shall prevail.

[0058] Furthermore, for ease of description, spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” may be used herein to describe the relationship between one element or component and another (or other) element or component as shown in the figure. In addition to the orientation shown in the figure, spatial relative terms are intended to include different orientations of the device during use or operation. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein can be interpreted accordingly.

[0059] In this article, the term "pan-tilt head" refers to a device used to mount, support, and fix a camera, enabling the camera to rotate in both horizontal and vertical directions to capture scenes from different angles and orientations.

[0060] In this document, the term "pan-tilt locking unit" refers to a device or functional module used to control the movement of a pan-tilt unit. It restricts the movement of the pan-tilt unit to a specific position or state through mechanical, electrical, or other technical means, preventing unnecessary movement during the locking period. The locking mechanism can be a physical braking device or a virtual locking function implemented through software algorithms.

[0061] In this article, the term "gimbal locking unit's toothed disc structure" refers to a device that achieves gimbal locking and unlocking through mechanical engagement.

[0062] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0063] The gear structure for the gimbal locking unit includes a spindle, a gear module, and a first mechanism; the gear module is rotatably disposed around the spindle; at least a portion of the first mechanism is fixed relative to the spindle, and at least another portion contacts the gear module to prevent the gear module from rotating around the spindle.

[0064] The first mechanism may also include at least one first plate fixed relative to the spindle, at least one second plate fixed relative to the gear disk module, and a first medium. The first medium is configured to prevent the second plate from rotating relative to the first plate around the spindle. The first medium is disposed between each pair of the first plate, the second plate, and the gear disk module. The number of the first and second plates can be set as needed. The first and second plates may not be alternated. Preferably, a second plate is disposed between at least one pair of adjacent first plates, and / or a first plate is disposed between at least one pair of adjacent second plates, to improve the hindering effect by increasing the interaction area between the friction plates. More preferably, the first and second plates are alternated for a better hindering effect.

[0065] The first medium is a damping material that can prevent the first piece from rotating relative to the second piece around the spindle.

[0066] The materials for the first and second friction plates can be selected as needed, such as stainless steel, copper, aluminum, or plastic.

[0067] The present invention will now be described in further detail with reference to the accompanying drawings.

[0068] Figures 1 to 5 The diagram schematically shows a gear structure for a gimbal locking unit according to a first embodiment of the present invention.

[0069] As one embodiment of the first mechanism 40, such as Figures 3 to 5 As shown, the first mechanism 40 includes a first medium 42, three first plates 41, and two second plates 43; the first plates 41 and the second plates 43 are arranged alternately along the extension direction of the first central axis 210 of the spindle 20, that is, two second plates 43 are spaced apart between the three first plates 41; the first plates 41 are fixedly disposed relative to the spindle 20, and the second plates 43 are fixedly disposed relative to the gear disk body 31; the first medium 42 is disposed between each pair of the first plates 41, the second plates 43, and the gear disk module 30.

[0070] As one embodiment of the gear plate module 30, such as Figure 3 and Figure 4 As shown, the gear plate module 30 includes a gear plate body 31; the gear plate body 31 is sleeved on the outer periphery of the spindle 20 and is rotatably disposed around the spindle 20; a first medium 42 is disposed between the first plate 41 and the gear plate body 31. For example, as... Figure 5As shown, the gear disc body 31 has a first through hole 312 integrally formed or machined on it, and the gear disc body 31 is sleeved on the outer periphery of the spindle 20 through the first through hole 312. The gear disc body 31 can adopt a wheel-shaped structure with grooves, such as a gear, sprocket, or pulley. The gear disc body 31 is generally made of materials with good strength and wear resistance, such as stainless steel, aluminum alloy, or other high-strength, wear-resistant plastics, such as polyimide (PI), polyamide-imide (PAI), polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene (UHMWPE), nylon (PA), polyurethane, polyphenylene sulfide (PPS), liquid crystal polymer (LCP), etc.

[0071] Since the first plate 41 is fixed relative to the spindle 20 and the second plate 43 is fixed relative to the gear disk body 31, and a first medium 42 is provided between the first plate 41 and the second plate 43, as well as between the first plate 41 and the gear disk body 31, when the gear disk body 31 rotates around the spindle 20, a damping effect will be generated under the action of the first plate 41, the second plate 43 and the first medium 42, making it difficult for the gear disk body 31 to rotate easily relative to the spindle 20. This achieves a non-rigid connection between the spindle 20 and the gear disk body 31, thereby avoiding the problem of easy wear of the tooth groove 311 due to instantaneous hard contact when the positioning pin 82 is inserted into the tooth groove 311 of the gear disk of the gear disk module 30.

[0072] In some embodiments, such as Figure 3 and Figure 4 As shown, the gear plate module 30, in addition to the gear plate body 31, also includes a pressure plate 32 that rotates around the spindle 20. The pressure plate 32 is connected to the gear plate body 31 to form an accommodating space between them for accommodating the first piece 41 and the first medium 42, so that the placement position of the first piece 41 is clearly defined by the gear plate body 31 and the pressure plate 32. For example, the pressure plate 32 is integrally formed or machined with a third through hole 321, and the pressure plate 32 is sleeved on the spindle 20 through the third through hole 321.

[0073] As one embodiment of the connection between the pressure plate 32 and the gear plate body 31, such as Figures 3 to 5 As shown, the gear plate module 30 also includes a rivet 34. The gear plate body 31 has an integrally formed or machined second through hole 313 for the rivet 34 to pass through, and the pressure plate 32 has an integrally formed or machined fourth through hole 322 for the rivet 34 to pass through, so as to realize the connection between the gear plate body 31 and the pressure plate 32 through the rivet 34.

[0074] As another embodiment of the connection between the pressure plate 32 and the gear plate body 31, the gear plate body 31 and the pressure plate 32 are connected by screws and nuts.

[0075] In some embodiments, such as Figure 3 and Figure 4 As shown, in the extending direction along the first central axis 210, there is a first gap 411 between the toothed disc body 31 and the first plate 41, and a second gap 431 between the first plate 41 and the second plate 43. The first medium 42 is disposed in at least one of the first gap 411 and the second gap 431 to ensure the damping effect by ensuring the content of the first medium 42 in the first gap 411 and the second gap 431.

[0076] As one embodiment where a first gap 411 exists between the toothed disc body 31 and the first plate 41, and / or a second gap 431 exists between the first plate 41 and the second plate 43, such as Figure 3 and Figure 4 As shown, the gear plate module 30, in addition to the gear plate body 31 and the pressure plate 32, also includes at least one set of positioning plates 33, for example, one, two, three, four, or five sets. In this embodiment, three sets of positioning plates 33 are provided. And / or, in addition to the first mechanism 40 including the first plate 41, the second plate 43, and the first medium 42, it also includes at least one set of spacers 44, for example, one, two, three, four, or five sets. In this embodiment, two sets of spacers 44 are provided. The positioning plates 33 can be arranged as needed between the pressure plate 32 and the second plate 43, between adjacent second plates 43, and between the second plate 43 and the gear plate body 31, so as to clamp the second plate 43 between the pressure plate 32 and the gear plate body 31. Therefore, by adjusting the thickness of the positioning piece 33, a first gap 411 can be established between the gear disc body 31 and the first piece 41, a second gap 431 can be established between the first piece 41 and the second piece 43, and a fifth gap 413 can be established between the first piece 41 and the pressure plate 32, so as to facilitate the placement of the first medium 42 in the first gap 411, the second gap 431, and the fifth gap 413. A spacer 44 is disposed between two adjacent sets of first pieces 41, so that by adjusting the thickness of the spacer 44, a second gap 431 can be established between the first piece 41 and the second piece 43. A ninth through hole 441 is integrally formed or machined on the spacer 44, which is adapted to the mandrel 20, and the spacer 44 is fitted onto the outer periphery of the mandrel 20 through the ninth through hole 441. When the first shaft body 21 and the second shaft body 22 are detachably connected, it is also convenient to install and replace at least one of the rotating bearing, the first spacer 51, the second spacer 52, the first piece 41, and the spacer 44.

[0077] The damping material is preferably a non-specific shape, i.e., an amorphous damping material, to accommodate the heavier shapes of the first gap 411 and the second gap 431. For example, the damping material is a damping grease, which, through its excellent adhesion, fills in assembly errors and gaps, reducing noise and vibration; while maintaining excellent cushioning, sealing, corrosion protection, and damping properties.

[0078] In some preferred embodiments, the first medium 42 is a solid grease, so as to reduce the probability of leakage of the first medium 42 while giving the first medium 42 a wider operating temperature range.

[0079] In some preferred embodiments, such as Figure 3 As shown, the first plate 41 and the second plate 43 are coaxially arranged with the spindle 20; alternatively, the central axis of at least one of the gear disc body 31, the first plate 41, and the second plate 43 can be arranged parallel to the first central axis 210 to ensure that the first medium 42 has a large contact area with at least one of the first plate 41, the second plate 43, and the gear disc body 31, thereby improving the damping effect. For example, as... Figures 3 to 5 As shown, the first piece 41 has a sixth through hole 414 integrally formed or machined on it. The sixth through hole 414 is adapted to the mandrel 20, and the first piece 41 is sleeved on the mandrel 20 through the sixth through hole 414. The second piece 43 has a seventh through hole 433 integrally formed or machined on it. The second piece 43 is sleeved on the outer periphery of the spacer 44 through the seventh through hole 433. There is a third gap 432 between the second piece 43 and the outer periphery of the spacer 44 to prevent the spacer 44 from preventing the second piece 43 from rotating around the mandrel 20 relative to the spacer 44. Specifically, when the pressure plate 32 and the gear plate body 31 are connected by rivets 34, the second piece 43 has an eighth through hole 434 integrally formed or machined on it for the rivets 34 to pass through.

[0080] In some embodiments, such as Figures 3 to 5 As shown, the positioning piece 33 is integrally formed or has a fifth through hole 331. The positioning piece 33 is sleeved on the outer periphery of the spindle 20 and the first piece 41 through the fifth through hole 331. There is a fourth gap 412 between the positioning piece 33 and the outer periphery of the first piece 41 to prevent the first piece 41 from being unable to rotate around the spindle 20 due to contact with the positioning piece 33.

[0081] In some embodiments, such as Figures 3 to 5 As shown, the connection points between the positioning plate 33 and the pressure plate 32 and the gear disc body 31 are located near the outer periphery of the gear disc body 31 to prevent the gear disc body 31 from being unable to rotate relative to the spindle 20 and the first plate 41 due to the connection between the positioning plate 33 and the pressure plate 32 and the gear disc body 31. Specifically, when the pressure plate 32 and the gear disc body 31 are connected by rivets 34, the positioning plate 33 has an integrally formed or machined through hole 332 for the rivet 34 to pass through.

[0082] In some embodiments, such as Figures 2 to 5As shown, the gear structure for the gimbal locking unit also includes a first spacer 51 and a second spacer 52. When the first shaft body 21 is connected to the second shaft body 22, the first piece 41 is clamped between them by the first spacer 51 and the second spacer 52. The gear body 31 and the pressure plate 32 are respectively adapted to the outer periphery of the first spacer 51 and the second spacer 52. Thus, not only can the first piece 41 be clamped by the first spacer 51 and the second spacer 52 when the first shaft body 21 is connected to the second shaft body 22, but the first medium 42 can also be prevented from leaking between the gear body 31 and the pressure plate 32 and the spindle 20 by adapting the gear body 31 to the outer periphery of the first spacer and the pressure plate 32 to the outer periphery of the second spacer 52. At the same time, a first gap 411 is created between the gear body 31 and the first piece 41, and a fifth gap 413 is created between the pressure plate 32 and the first piece 41. The first spacer 51 and the second spacer 52 are integrally formed or machined with a first channel 511 and a second channel 521, respectively. The first channel 511 and the second channel 521 are adapted to the mandrel 20. The first spacer 51 and the second spacer 52 are respectively sleeved on the outer periphery of the mandrel 20 through the first channel 511 and the second channel 521.

[0083] In some preferred embodiments, such as Figure 3 As shown, the spindle 20 includes a first shaft body 21 and a second shaft body 22 coaxially connected to clamp the first plate 41 between them when they are connected. This allows for quick installation and replacement of the first plate 41 by connecting and disassembling the first shaft body 21 and the second shaft body 22, even when the spindle 20 and the first plate 41 are manufactured separately, thus improving the production efficiency of the gear structure for the gimbal locking unit. Preferably, the first shaft body 21 and the second shaft body 22 are detachably connected, for example, by a first screw 222. Specifically, the first shaft body 21 has a first screw hole 211 machined on it; the second shaft body 22 has an integrally formed or machined first countersunk hole 2211 adapted to the first screw 222, so that when the first screw 222 passes through the first countersunk hole 2211 and connects to the first shaft body 21 through the first screw hole 211, the first shaft body 21 and the second shaft body 22 are connected. To facilitate the setting of the first screw 222, the first shaft body 21 includes a pressure block 221 and a first screw 222, and a first countersunk hole 2211 is provided on the pressure block 221.

[0084] In some embodiments, such as Figures 1 to 5As shown, the gear structure for the gimbal locking unit also includes at least one set of rotating bearings. When the first shaft body 21 is connected to the second shaft body 22, the rotating bearings abut against at least one of the first spacer 51 and the second spacer 52, thereby clamping the first plate 41 between the first shaft body 21 and the second shaft body 22. For example, when the first shaft body 21 is connected to the second shaft body 22, the first shaft body 21 abuts against the side of the first spacer 51 opposite to the first mechanism 40 via the first rotating bearing 53; the second shaft body 22 abuts against the side of the second spacer 52 opposite to the first mechanism 40 via the second rotating bearing 54. This ensures that the gear structure for the gimbal locking unit is compact and has high assembly efficiency, while facilitating the rotatable connection of the gear structure for the gimbal locking unit to other components of the gimbal locking unit via the rotating bearings. Specifically, the first rotating bearing 53 and the second rotating bearing 54 are respectively sleeved on the outer periphery of the spindle 20 through the third channel 531 and the fourth channel 541. The first rotating bearing 53 and the second rotating bearing 54 are rolling bearings such as deep groove ball bearings, angular contact ball bearings, tapered roller bearings, and self-aligning roller bearings, sliding bearings such as bushing bearings and hydrodynamic bearings, as well as other bearings that can achieve coaxial rotation.

[0085] In some embodiments, such as Figures 3 to 5 As shown, the positioning piece 33 is a ring coaxially arranged with the toothed disc body 31. Thus, when the toothed disc body 31 is connected to the pressure plate 32, the positioning piece 33 can clamp the second piece 43 between the two and prevent the first medium 42 from leaking from the toothed disc body 31 and the pressure plate 32 between the positioning piece 33 and the adjacent positioning pieces 33.

[0086] Figure 6 The diagram schematically illustrates a geared disc structure for a gimbal locking unit according to a second embodiment of the present invention. The main differences between this embodiment and the first embodiment of the geared disc structure for a gimbal locking unit include the different numbers of the first mechanism 40 and the positioning plates 33, as detailed below. Figure 6 As shown, the first mechanism 40 in this embodiment includes only a first medium 42 and a first plate 41; the gear disk structure includes only a positioning plate 33, which is disposed between the pressure plate 32 and the gear disk body 31. Since the first medium 42 is disposed between the first plate 41, which is fixed relative to the spindle 20, and the gear disk body 31, a damping effect is generated when the gear disk body 31 rotates around the spindle 20, making it difficult for the gear disk body 31 to easily rotate relative to the spindle 20, thus achieving a non-rigid connection between the spindle 20 and the gear disk body 31.

[0087] Figure 7The diagram schematically illustrates a geared disc structure for a gimbal locking unit according to a third embodiment of the present invention. The main differences between this embodiment and the first embodiment of the geared disc structure for a gimbal locking unit include the different numbers of the first mechanism 40 and the positioning plates 33, as detailed below. Figure 7 As shown, the first mechanism 40 in this embodiment includes only a first plate 41, a second plate 43, and a first medium 42; the toothed disc structure includes two positioning plates 33, one of which is disposed between the pressure plate 32 and the second plate 43, and the other positioning plate 33 is disposed between the toothed disc body 31 and the second plate 43.

[0088] Figure 8 The diagram schematically illustrates a geared disc structure for a gimbal locking unit according to a fourth embodiment of the present invention. The main differences between this embodiment and the first embodiment of the geared disc structure for a gimbal locking unit include the different numbers of the first plate 41, the second plate 43, the spacer 44, and the positioning plate 33, as detailed below. Figure 8 As shown, in this embodiment, two first plates 41, one second plate 43, one spacer 44, and two positioning plates 33 are provided; the spacer 44 is disposed between the two first plates 41; the second plate 43 is disposed between the two positioning plates 33, and the two positioning plates 33 are disposed between the pressure plate 32 and the gear plate body 31.

[0089] Figure 9 The diagram schematically illustrates a geared disc structure for a gimbal locking unit according to a fifth embodiment of the present invention. The main difference between this embodiment and the first embodiment of the geared disc structure for a gimbal locking unit includes the first mechanism 40, specifically as follows... Figure 9 As shown, the first mechanism 40 in this embodiment includes only a first medium 42, a first sheet 41 and two second sheets 43; the first spacer 51 and the second spacer 52 clamp the first sheet 41, and the first sheet 41 is located between the two second sheets 43.

[0090] Figures 10 to 18 The diagram schematically shows a gimbal locking unit according to a first embodiment of the present invention.

[0091] like Figures 12 to 14As shown, the gimbal locking unit includes a geared disc structure, a base 60, a gear shift wheel 70, and a locking mechanism 80. The geared disc structure is the aforementioned geared disc structure for gimbal locking units. The base 60 is sleeved on the geared disc structure. The gear shift wheel 70 is rotatable around the spindle 20 of the geared disc structure. The locking mechanism 80 is disposed on the base 60 and the gear shift wheel 70, and is configured such that when the gear shift wheel 70 rotates around the spindle 20 to a set position, the locking mechanism 80 can lock the gear shift wheel 70 relative to the base 60, so that when the gear shift wheel 70 rotates around the spindle 20 to the set position, the locking mechanism 80 can lock the gear shift wheel 70 and the geared disc module 30 of the geared disc structure relative to the base 60.

[0092] As one implementation of the locking mechanism 80, such as Figures 12 to 14 As shown, the locking mechanism 80 includes a first elastic element 81, a positioning pin 82, and at least one set of positioning holes 83. The first elastic element 81 is disposed on the base 60 and is configured to apply a spring force to the positioning pin 82 along the extending direction of the spindle 20. The positioning holes 83 are disposed on the gear shift wheel 70 and are located on the circumference of the gear shift wheel 70 with the first central axis 210 of the spindle 20 as the center and corresponding to the positioning pin 82. When the gear shift wheel 70 rotates around the first central axis 210 to a position where the positioning hole 83 corresponds to the positioning pin 82, the positioning pin 82 can be inserted into the positioning hole 83 under the spring force of the first elastic element 81. When the gear shift wheel 70 rotates around the spindle 20 to a set position, the positioning pin 82 is inserted into the positioning hole 83 under the spring force of the first elastic element 81, and the positioning pin 82 can be located in the tooth groove 311 of the gear body 31 of the gear disc structure to achieve locking between the base 60 and the gear shift wheel 70. Furthermore, by setting the number of positioning holes 83, the gear shift wheel 70 can be locked relative to the base 60 after rotating around the spindle 20 by a set angle. The set angle is the central angle formed by the line connecting the centers of the two positioning holes 83 and the first central axis 210. For example, when one positioning hole 83 is set, the locking mechanism 80 locks the gear shift wheel 70 relative to the base 60 once every 360° rotation around the first central axis 210 relative to the base 60. When two or more positioning holes 83 are set, the specific angle corresponding to the gear shift wheel 70 being locked after rotating around the spindle 20 relative to the base 60 by a specific angle is the central angle formed by the line connecting adjacent positioning holes 83 and the first central axis 210. For example, the specific angle corresponding to two circumferentially distributed positioning holes 83 is 180°; the specific angle corresponding to three circumferentially distributed positioning holes 83 is 120°; and the specific angle corresponding to six circumferentially distributed positioning holes 83 is 60°.

[0093] In some embodiments, the gear shift wheel 70 is mounted on the spindle 20 via a first rotary bearing 53; and / or the base 60 is mounted on the spindle 20 via a second rotary bearing 54, so that at least one of the base 60 and the gear shift wheel 70 can rotate about the spindle 20.

[0094] In other embodiments, such as Figures 12 to 14 As shown, the base 60 is mounted on the spindle 20 via a first rotary bearing 53 and a second rotary bearing 54, so that the base 60 can rotate around the spindle 20.

[0095] As one embodiment of the positioning post 82, such as Figures 12 to 14 As shown, the positioning post 82 includes a post 821 and a blocking part 822 that are fixedly arranged relative to each other. The post 821 is used to insert into the positioning hole 83. The blocking part 822 is arranged such that when the post 821 is inserted into the positioning hole 83, the blocking part 822 is located in the tooth groove 311 of the toothed disc body 31. When the post 821 is removed from the positioning hole 83, the blocking part 822 is located on the side of the toothed disc body 31 facing the first elastic member 81.

[0096] In some preferred embodiments, such as Figure 13 and Figure 14 As shown, the blocking part 822 has a first conical surface 8221 and / or the tooth groove 311 of the gear disk body 31 has a second conical surface 3111. The first conical surface 8221 is inclined toward the gear disk body 31 from the end away from the first elastic member 81 to the end close to the first elastic member 81. The second conical surface 3111 is inclined toward the positioning post 82 from the end close to the first elastic member 81 to the end away from the first elastic member 81. The first conical surface 8221 and / or the second conical surface 3111 provide guidance for the blocking part 822 to move into the tooth groove 311 of the gear disk body 31 under the elastic force of the first elastic member 81, so as to ensure that the blocking part 822 can smoothly move into the tooth groove 311 of the gear disk body 31, or smoothly move out of the tooth groove 311 of the gear disk body 31, thereby ensuring the service life of the blocking part 822 and the gear disk body 31.

[0097] In some preferred embodiments, reference continues to be made to Figure 13 and Figure 14 As shown, the end of the positioning post 82 facing the positioning hole 83 is a ball head 8211, so that the positioning post 82 can be smoothly moved into or out of the positioning hole 83.

[0098] To facilitate the connection between the base 60 and the gear plate structure, and to allow the gear wheel 70 to rotate relative to the base 60; for example Figure 10 and Figures 12 to 18As shown, the base 60 includes a first seat 61, a second seat 62, and a third seat 63 connected sequentially by a second screw 64 and a third screw 65, so that after the three are connected, a receiving space is formed to accommodate the gear disc structure, and the gear shift wheel 70 can rotate relative to the base 60. Preferably, in order to guide the movement of the positioning post 82 under the elastic force of the first elastic member 81, the first seat 61 is provided with a second countersunk hole 612 provided along the extension direction of the first central axis 210. The second countersunk hole 612 is adapted to the outer periphery of the first elastic member 81, and the opening of the second countersunk hole 612 is provided facing the side where the gear shift wheel 70 is located. Specifically, the first base 61 is provided with a fifth channel 611 through which the mandrel 20 passes, a third countersunk hole 613 facing the second base 62 and adapted to the second rotary bearing 54, and a fourth countersunk hole 614 facing the second base 62; the second base 62 is provided with a sixth channel 621 through which the mandrel 20 passes, a fifth countersunk hole 622 facing the first base 61 and adapted to the first rotary bearing 53, and a sixth countersunk hole 623 facing the first base 61; so that after the first base 61 and the second base 62 are connected by the second screw 64, a space for accommodating the gear plate module 30 and the first mechanism 40 is formed between the first base 61 and the second base 62 through the fourth countersunk hole 614 and the sixth countersunk hole 623, and the mandrel 20 can rotate relative to the first base 61 and the second base 62 through the first rotary bearing 53 and the second rotary bearing 54. Specifically, the third seat 63 is provided with a seventh channel 631 through which the mandrel 20 passes; the gear shift wheel 70 is provided with an eighth channel 71 that is adapted to the outer periphery of the second seat 62; so that when the second seat 62 and the third seat 63 are connected by a third screw 65, the gear shift wheel 70 can be rotatably clamped between the two. Preferably, in order to avoid the second seat 62 affecting the movement of the positioning post 82, the second seat 62 is provided with a ninth channel 624 through which the positioning post 82 passes.

[0099] In this invention, the connection or installation is a fixed connection unless otherwise specified. A fixed connection can be implemented as a detachable or non-detachable connection commonly used in the prior art. A detachable connection can be implemented using existing technologies, such as threaded connections or keyed connections. A non-detachable connection can also be implemented using existing technologies, such as welding or adhesive bonding.

[0100] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A toothed disc structure for a gimbal locking unit, characterized in that, include: mandrel (20); A gear plate module (30) is rotatably mounted about the spindle (20); The first mechanism (40), at least a portion of which is fixed relative to the spindle (20), to prevent the gear plate module (30) from rotating relative to the spindle (20).

2. The toothed disc structure for a gimbal locking unit according to claim 1, characterized in that, The gear plate module (30) includes a gear plate body (31), which is sleeved on the outer periphery of the spindle (20) and is rotatably arranged around the spindle (20); The first mechanism (40) includes at least one first plate (41) and a first medium (42). The first plate (41) is fixedly disposed relative to the spindle (20). The first medium (42) is disposed between the first plate (41) and the gear disk body (31). The first medium (42) is configured to prevent the gear disk body (31) from rotating relative to the first plate (41) around the spindle (20); or The first mechanism (40) includes at least one first plate (41), at least one second plate (43), and a first medium (42). The first plate (41) is fixedly disposed relative to the spindle (20), and the second plate (43) is fixedly disposed relative to the gear disk body (31). The first medium (42) is disposed between the first plate (41) and the second plate (43). The first medium (42) is configured to prevent the second plate (43) from rotating relative to the first plate (41) around the spindle (20).

3. The toothed disc structure for the gimbal locking unit according to claim 2, characterized in that, At least one of the first piece (41) and the second piece (43) is provided with at least two pieces, and at least one of the first piece (41) and the second piece (43) is sleeved on the mandrel (20); At least one set of adjacent first pieces (41) are provided with a second piece (43), and / or At least one set of adjacent second pieces (43) is provided with a first piece (41).

4. The toothed disc structure for a gimbal locking unit according to claim 2, characterized in that, Along the axial direction of the mandrel (20), there is a first gap (411) between the gear disk body (31) and the first plate (41), and a second gap (431) between the first plate (41) and the second plate (43). The first medium (42) is disposed in at least one of the first gap (411) and the second gap (431). At least one of the gear disk body (31), the first plate (41), and the second plate (43) is coaxially disposed with respect to the mandrel (20); and / or, The first medium (42) is a damper that can prevent the first piece (41) from rotating relative to the second piece (43) around the spindle (20).

5. The toothed disc structure for a gimbal locking unit according to claim 4, characterized in that, The damping material is an amorphous damping material.

6. The toothed disc structure for a gimbal locking unit according to claim 4, characterized in that, The damping material is damping grease.

7. The toothed disc structure for a gimbal locking unit according to claim 4, characterized in that, The damping material is solid grease.

8. The toothed disc structure for a gimbal locking unit according to any one of claims 2 to 7, characterized in that, The mandrel (20) includes a first shaft body (21) and a second shaft body (22) coaxially connected to clamp the first sheet (41) between them when they are connected; and / or The gear plate module (30) also includes a pressure plate (32) that rotates about a spindle (20), the pressure plate (32) being connected to the gear plate body (31) to form an accommodating space between them for accommodating the first plate (41) and the first medium (42).

9. The toothed disc structure for a gimbal locking unit according to claim 8, characterized in that, It also includes at least one of a first spacer (51) and a second spacer (52), wherein when the first shaft body (21) is connected to the second shaft body (22), the first plate (41) is clamped between the two by at least one of the first spacer (51) and the second spacer (52), the gear plate body (31) is adapted to the outer periphery of the second spacer (52), and the pressure plate (32) is adapted to the outer periphery of the first spacer (51); and / or The gear plate module (30) further includes at least one set of positioning plates (33). The positioning plates (33) are provided between the pressure plate (32) and the gear plate body (31), between the pressure plate (32) and the second plate (43), between adjacent second plates (43), and between the second plate (43) and the gear plate body (31) to clamp the second plate (43) between the pressure plate (32) and the gear plate body (31) when they are connected. The connection between the positioning plates (33) and the pressure plate (32) and the gear plate body (31) is located near the outer periphery of the gear plate body (31). There is a fourth gap (412) between the positioning plates (33) and the outer periphery of the first plate (41).

10. The toothed disc structure for a gimbal locking unit according to claim 9, characterized in that, It also includes at least one set of rotating bearings, which, when the first shaft body (21) is connected to the second shaft body (22), abut against at least one of the first spacer (51) and the second spacer (52) through the rotating bearings, so as to clamp the first piece (41) between the first shaft body (21) and the second shaft body (22) through at least one of the first spacer (51) and the second spacer (52); and / or It also includes at least one set of spacers (44) disposed between two adjacent sets of first sheets (41).

11. The toothed disc structure for a gimbal locking unit according to claim 10, characterized in that, There is a third gap (432) between the second piece (43) and the outer periphery of the spacer (44).

12. The toothed disc structure for a gimbal locking unit according to claim 8, characterized in that, The first shaft body (21) and the second shaft body (22) are detachably connected.

13. The toothed disc structure for a gimbal locking unit according to claim 9, characterized in that, The positioning piece (33) is a ring coaxially arranged with the toothed disc body (31).

14. A gimbal locking unit, characterized in that, include: The toothed disc structure for the gimbal locking unit as described in any one of claims 1 to 13; A base (60) fitted onto the gear disc structure; A gear shift wheel (70) is rotatable around the spindle (20) of the gear disc structure; A locking mechanism (80) is provided on the base (60) and the gear wheel (70), the locking mechanism (80) being configured to lock the gear wheel (70) and the gear plate module (30) of the gear plate structure relative to the base (60) when the gear wheel (70) rotates around the spindle (20) to a set position.

15. The gimbal locking unit according to claim 14, characterized in that, At least one of the base (60) and the gear shift wheel (70) is mounted on the spindle (20) via at least one set of rotary bearings, so that at least one of the base (60) and the gear shift wheel (70) can rotate about the spindle (20); and / or The locking mechanism (80) includes a first elastic element (81), a positioning post (82), and at least one set of positioning holes (83). The first elastic element (81) is disposed on the base (60) and is configured to apply elastic force to the positioning post (82) along the extension direction of the spindle (20). The positioning hole (83) is disposed on the gear wheel (70) and is located on the circumference of the gear wheel (70) with the first central axis (210) of the spindle (20) as the center and corresponding to the positioning post (82). When the gear wheel (70) rotates around the spindle (20) to the point where the positioning hole (83) corresponds to the position of the positioning post (82), the positioning post (82) can be inserted into the positioning hole (83) under the elastic force of the first elastic element (81), and the positioning post (82) can be located in the tooth groove (311) of the tooth disc body (31) of the tooth disc structure.

16. The gimbal locking unit according to claim 15, characterized in that, The positioning post (82) includes a post (821) and a blocking part (822) that are fixedly arranged relative to each other. The blocking part (822) is arranged such that when the post (821) is inserted into the positioning hole (83), the blocking part (822) is located in the tooth groove (311) of the toothed disc body (31), and when the post (821) is moved out of the positioning hole (83), the blocking part (822) is located on the side of the toothed disc body (31) facing the first elastic member (81).

17. The gimbal locking unit according to claim 16, characterized in that, The blocking part (822) has a first conical surface (8221) and / or the tooth groove (311) of the toothed disc body (31) has a second conical surface (3111). The first conical surface (8221) is inclined toward the toothed disc body (31) from the end away from the first elastic member (81) to the end close to the first elastic member (81). The second conical surface (3111) is inclined toward the positioning post (82) from the end close to the first elastic member (81) to the end away from the first elastic member (81).

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