Camera rotating device, monocular telescope and rotating mechanism thereof

Abstract

The invention discloses a camera rotating device, a monocular telescope and a rotating mechanism thereof. The camera rotating device comprises a connecting cylinder, a rotating ring body, a resistance ring body, an oil film and a driver, wherein the rotating ring body and the resistance ring body are fixed to each other and arranged on the two opposite sides of the connecting cylinder in a sleeving mode. The connecting cylinder comprises a resistance part forming the outer surface of the connecting cylinder, and the rotating ring body is provided with a plurality of tooth parts annularly arranged on the outer edge of the rotating ring body. The oil film is located in a space defined by the rotating ring body, the resistance ring body and the resistance part. And the driver is meshed with at least one tooth part, and the relative position of the driver and the connecting cylinder is kept fixed. And the driver can stir at least one tooth part, so that the rotating ring body and the resistance ring body jointly rotate relative to the resistance part, and rotating resistance is generated through the oil film. The camera rotating device is not easy to deviate due to the influence of gravity, and can generate higher rotating resistance so as to accurately control the rotating angle.

Description

Technical Field

[0001] The invention relates to a monocular telescope, and in particular to a camera rotating device, a monocular telescope and a rotating mechanism thereof. Background Art

[0002] The mechanism for rotating the camera in the existing monocular telescope uses a ball bearing, but the friction of the ball bearing is too low during operation, so it is not conducive to accurately controlling the rotation angle of the camera. Furthermore, the multiple balls in the ball bearing are easily affected by gravity and biased downward, thereby causing the camera to deviate.

[0003] Therefore, the inventors believe that the above defects can be improved, and thus have devoted themselves to research and applied scientific principles, and finally proposed the present invention which has a reasonable design and effectively improves the above defects. Summary of the invention

[0004] The embodiment of the present invention provides a camera rotating device, a monocular telescope and a rotating mechanism thereof, which can effectively improve the defects that may occur in the existing monocular telescope.

[0005] The embodiment of the present invention discloses a monocular telescope, which comprises: a telescope body, having an observation end and a mounting end respectively located at opposite ends; a camera rotating device, comprising: a connecting tube, which is detachably mounted on the mounting end of the telescope body, and the connecting tube comprises a resistance portion forming its outer surface; wherein the outer surface of the connecting tube is divided into a front section and a rear section by the resistance portion; a rotating ring body, which is sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on its outer edge; a resistance ring body, which is sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, The resistance ring body and the resistance part jointly form a configuration space; an oil film is located in the configuration space; and a driver, which includes a motor and a transmission mechanism engaged with at least one tooth part, and the relative position of the driver and the connecting tube remains fixed; and a camera device detachably mounted on the rotating ring body of the camera rotating device; wherein the motor of the driver can be used to receive an electronic signal to drive the transmission mechanism to shift at least one tooth part, and then drive the camera device through the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance part, and generate a rotation resistance through the oil film synchronously during the rotation operation.

[0006] Preferably, the resistance part is annular and has two side edges and a top edge connected to the two side edges. The rotating ring body and the resistance ring body respectively abut against the two side edges of the resistance part, and the resistance ring body covers the top edge of the resistance part and is spaced apart from each other.

[0007] Preferably, the connecting tube includes a cylinder body installed at the installation end, and the resistance part of the connecting tube has: an intermediate ring, which is integrally formed on the cylinder body; and two metal rings, which are sleeved on the cylinder body and respectively abut against opposite sides of the intermediate ring; wherein the material of each metal ring is different from the material of the intermediate ring.

[0008] Preferably, the material of each metal ring is further limited to copper metal and is different from the material of the rotating ring body and the resistance ring body.

[0009] Preferably, the resistance ring body has a plurality of screw holes formed through the rotating ring body, and the camera rotating device includes a plurality of adjustment bolts, which are respectively screwed into the plurality of screw holes and abut against the rotating ring body.

[0010] Preferably, the rotating ring body includes a ring body, and the plurality of teeth are an annular rack detachably mounted on the ring body; or, the plurality of teeth are integrally formed on the outer edge of the rotating ring body.

[0011] Preferably, the camera rotating device includes a carrier that does not touch the camera device, and the connecting tube and the driver are installed on the carrier so that their relative positions remain fixed; wherein the transmission mechanism includes: a worm gear engaged with at least one tooth portion; and a universal joint connecting the worm gear and the output shaft of the motor so that the worm gear and the output shaft are in a non-parallel configuration.

[0012] The embodiment of the present invention also discloses a camera rotating device, which includes: a carrier; a connecting tube, which is installed on the carrier and includes a resistance part forming its outer surface; wherein the outer surface of the connecting tube is divided into a front section and a rear section by the resistance part; a rotating ring body, which is sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on its outer edge; a resistance ring body, which is sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, the resistance ring body, and the resistance part jointly form a configuration space; an oil film, which is located in the configuration space; and a driver, which is installed on the carrier to maintain a fixed relative position with the connecting tube; wherein the driver includes a motor and a transmission mechanism meshed with at least one tooth part; wherein the motor of the driver can be used to receive an electronic signal to drive the transmission mechanism to shift at least one tooth part, thereby causing the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance part together, and generate a rotation resistance through the oil film synchronously during the rotation operation.

[0013] Preferably, the resistance ring body has a plurality of screw holes formed through the rotating ring body, and the camera rotating device includes a plurality of adjustment bolts, which are respectively screwed into the plurality of screw holes and abut against the rotating ring body; wherein, the connecting tube includes a cylinder body installed at the installation end, and the resistance portion of the connecting tube is annular and has: an intermediate ring, which is integrally formed on the cylinder body; and two metal rings, which are sleeved on the cylinder body and respectively abut against opposite sides of the intermediate ring; wherein the material of each metal ring is different from the material of the intermediate ring, the rotating ring body, and the resistance ring body; wherein the rotating ring body and the resistance ring body respectively abut against two side edges of the two metal rings away from each other, and the resistance ring body covers the top edges of the intermediate ring and the two metal rings and are spaced apart from each other.

[0014] The embodiment of the present invention further discloses a rotating mechanism of a monocular telescope, which includes: a connecting tube, including a resistance portion forming its outer surface; wherein the outer surface of the connecting tube is divided into a front section and a rear section by the resistance portion; a rotating ring body, which is sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on its outer edge; a resistance ring body, which is sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, the resistance ring body, and the resistance portion jointly form a configuration space; and an oil film, which is located within the configuration space; wherein the rotating mechanism can be moved by at least one tooth portion, thereby causing the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance portion together, and synchronously generate a rotation resistance through the oil film during the rotation operation.

[0015] In summary, the camera rotating device, the monocular telescope and its rotating mechanism disclosed in the embodiments of the present invention, the component combinations used (such as: the combination between the connecting tube, the rotating ring body, the resistance ring body, and the oil film) are not easily offset by gravity, and can generate a higher rotational resistance during the rotation operation, so as to accurately control the rotation angle of the rotating mechanism.

[0016] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, such description and drawings are only used to illustrate the present invention and are not intended to limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a three-dimensional schematic diagram of a monocular telescope according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of the monocular telescope in operation.

[0019] Figure 3 for Figure 1 Schematic diagram of the exploded view of the monocular telescope.

[0020] Figure 4 for Figure 3 Schematic cross-sectional view of the camera rotation device along section line IV-IV.

[0021] Figure 5 for Figure 4 An enlarged schematic diagram of region V.

[0022] Figure 6 for Figure 3 An exploded view of the camera rotation device.

[0023] Figure 7 for Figure 3 Another perspective exploded diagram of the camera rotation device.

[0024] Figure 8 for Figure 6 Schematic diagram of the exploded view of the rotating mechanism.

[0025] Fig. 9 for Figure 7 Schematic diagram of the exploded view of the rotating mechanism.

[0026] Fig.10 FIG. 2 is an exploded schematic diagram of another embodiment of the rotating mechanism of the present invention. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the "camera rotating device, and monocular telescope and its rotating mechanism" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual sizes. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0028] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0029] See also Figures 1 to 10As shown in FIG. 1 , it is an embodiment of the present invention. This embodiment discloses a monocular telescope 1000, and in particular refers to an astronomical telescope; that is, any telescope other than a monocular telescope is different from the monocular telescope 1000 referred to in this embodiment. Figures 1 to 3 As shown, the monocular telescope 1000 includes a camera rotating device 100, a telescope body 200 detachably mounted on one side of the camera rotating device 100, and a camera device 300 detachably mounted on the other side of the camera rotating device 100. The camera device 300 can be rotated relative to the telescope body 200 through the camera rotating device 100.

[0030] It should be noted that, although the camera rotating device 100 is described in this embodiment as being detachably matched with the telescope body 200 and the camera device 300, the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the camera rotating device 100 can also be used alone (e.g., sold) or used in combination with other components.

[0031] In this embodiment, the telescope body 200 has an observation end 201 and a mounting end 202 located at opposite ends, and the specific internal structure of the telescope body 200 can be adjusted and changed according to design requirements, and the present invention is not limited here. It should be noted that the telescope body 200 in this embodiment defines a central optical axis C by the center of the observation end 201 and the center of the mounting end 202.

[0032] like Figures 4 to 7 As shown, the camera rotating device 100 includes a carrier 1, a rotating mechanism 2 installed on the carrier 1, and a driver 3 installed on the carrier 1. The carrier 1 in this embodiment is described as a box-shaped structure composed of two components, and the carrier 1 preferably does not touch the camera device 300 (e.g.: Figure 1 and Figure 2 ), but the present invention is not limited thereto.

[0033] It should be noted that the rotating mechanism 2 is described in this embodiment in combination with the carrier 1 and the driver 3, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the rotating mechanism 2 can also be used alone (e.g., sold) or in combination with other components.

[0034] Further, if Figure 4 , Figure 5 , Figure 8 ,and Fig. 9As shown, the rotating mechanism 2 is generally cylindrical in shape and its center line preferably overlaps the central optical axis C. The rotating mechanism 2 includes a connecting tube 21, a rotating ring body 22 and a resistance ring body 23 respectively sleeved on opposite sides of the connecting tube 21, and an oil film 24. The connecting tube 21 includes a tube body 211 and a resistance portion 212 forming the outer surface of the tube body 211, and the outer surface of the tube body 211 is divided into a front section 2111 and a rear section 2112 by the resistance portion 212.

[0035] In more detail, the resistance portion 212 of the connecting tube 21 is annular in this embodiment and has an intermediate ring 2121 and two metal rings 2122 integrally formed on the tube body 211. The two metal rings 2122 are sleeved on the tube body 211 and respectively abut against opposite sides of the intermediate ring 2121; that is, the front section 2111 and the rear section 2112 of the tube body 211 are respectively located on the outer sides of the two metal rings 2122 away from each other.

[0036] Furthermore, the material of each metal ring 2122 (e.g., copper metal) is different from the material of the intermediate ring 2121 (e.g., aluminum metal), and the intermediate ring 2121 is clamped between the two metal rings 2122, and the top edges of the intermediate ring 2121 and the two metal rings 2122 are substantially aligned with each other. In this embodiment, the two metal rings 2122 are preferably mirror-symmetrical to the intermediate ring 2121, but the present invention is not limited thereto.

[0037] The rotating ring body 22 is sleeved on the rear section 2112 of the connecting tube 21, and the resistance ring body 23 is sleeved on the front section 2111 of the connecting tube 21 and fixed to the rotating ring body 22, so that the rotating ring body 22, the resistance ring body 23, and the resistance portion 212 together form an annular configuration space S. The configuration space S is generally sealed and the oil film 24 is configured therein, and the fixing method between the resistance ring body 23 and the rotating ring body 22 is screwed in this embodiment, but the present invention is not limited thereto.

[0038] Furthermore, in order to further enhance the mutual fixing effect between the resistance ring body 23 and the rotating ring body 22, the resistance ring body 23 may have a plurality of screw holes 231 formed through the rotating ring body 22, and the rotating mechanism 2 (or the camera rotating device 100) may further include a plurality of adjustment bolts 25, which are respectively screwed into the plurality of screw holes 231 and abut against the rotating ring body 22, thereby enhancing the friction between the resistance ring body 23 and the rotating ring body 22 and enabling synchronous rotation.

[0039] Furthermore, the material of each metal ring 2122 is preferably different from the material of the rotating ring body 22 and the resistance ring body 23 (e.g., aluminum metal). In this embodiment, the rotating ring body 22 and the resistance ring body 23 respectively abut against two side edges 2123 of the two metal rings 2122 that are away from each other, and the resistance ring body 23 covers the intermediate ring 2121 and the top edges of the two metal rings 2122 and is spaced apart from each other.

[0040] That is, the resistance portion 212 has two side edges 2123 (respectively located at the two metal rings 2122), and a top edge 2124 connected to the two side edges 2123 (and located between the intermediate ring 2121 and the two metal rings 2122). The rotating ring body 22 and the resistance ring body 23 respectively abut against the two side edges 2123 of the resistance portion 212 (that is, the resistance portion 212 can be clamped between the rotating ring body 22 and the resistance ring body 23), and the resistance ring body 23 covers the top edge 2124 of the resistance portion 212 and is spaced apart from each other to form the configuration space S.

[0041] In addition, the rotating ring body 22 is provided with a plurality of teeth 221 arranged in a ring shape on its outer edge, and the plurality of teeth 221 are connected in sequence, and the specific molding method of the plurality of teeth 221 can be adjusted and changed according to design requirements. Figure 8 and Fig. 9 As shown, the rotating ring body 22 includes a ring body 222, and the plurality of teeth 221 are an annular rack detachably mounted on the ring body 222; or, as shown Fig.10 As shown, the plurality of teeth 221 may also be integrally formed on the outer edge of the rotating ring body 22 .

[0042] As described above, the rotating mechanism 2 can be moved by at least one of the teeth 221, so that the rotating ring body 22 and the resistance ring body 23 can perform a rotation operation relative to the resistance part 212, and synchronously generate a rotation resistance through the oil film 24 during the rotation operation. Accordingly, the rotating mechanism 2 disclosed in this embodiment uses a combination of components that are not easily offset by gravity and can generate a higher rotation resistance during the rotation operation, so as to accurately control the rotation angle of the rotating mechanism 2.

[0043] Furthermore, the number of the plurality of teeth 221 included in the rotating ring body 22 can be adjusted according to design requirements, and each degree of the central angle of the rotating ring body 22 can preferably correspond to at least one tooth 221, thereby being able to more accurately control the rotation angle of the rotating mechanism 2.

[0044] like Figures 3 to 5 ,and Figure 7 As shown, the rotating mechanism 2 can be detachably mounted on the mounting end 202 of the telescope body 200 by the connecting tube 21 (e.g., the tube body 211). For example, the tube body 211 is fixed to the carrier 1 through the front section 2111, and then screwed to the mounting end 202, while most of the rotating mechanism 2 and the driver 3 are disposed inside the carrier 1. In this embodiment, the connecting tube 21 and the driver 3 are fixed relative to each other by being mounted on the carrier 1, but the present invention is not limited thereto.

[0045] Furthermore, the driver 3 includes a motor 31 and a transmission mechanism 32 meshed with at least one of the teeth 221, and the motor 31 can be used to receive an electronic signal to drive the transmission mechanism 32 to move at least one of the teeth 221, thereby achieving the effect of wirelessly controlling the camera rotating device 100. The specific structure of the transmission mechanism 32 can be adjusted and changed according to design requirements, and the present invention is not limited thereto.

[0046] In this embodiment, the transmission mechanism 32 includes a worm gear 321 and a universal joint 322, and the worm gear 321 is meshed with at least one of the teeth 221, and the universal joint 322 connects the worm gear 321 and the output shaft 311 of the motor 31, so that the worm gear 321 and the output shaft 311 can be arranged in a non-parallel manner, thereby facilitating the reduction of the overall volume of the camera rotating device 100 (or the carrier 1).

[0047] The camera device 300 is detachably mounted on the rotating ring body 22 of the camera rotating device 100 , and the camera device 300 and the rotating ring body 22 are also screwed together in this embodiment for illustration, but the present invention is not limited thereto.

[0048] In summary, the motor 31 of the driver 3 can drive the transmission mechanism 32 (such as the worm 321) to move at least one of the teeth 221 through the electronic signal, and then drive the camera device 300 to perform the rotation operation relative to the resistance part 212 through the rotating ring body 22 and the resistance ring body 23 (such as: Figure 1 and Figure 2 ), and synchronously during the rotation operation, the rotation resistance is generated through the oil film 24.

[0049] [Technical Effects of Embodiments of the Invention]

[0050] In summary, the camera rotating device, the monocular telescope and its rotating mechanism disclosed in the embodiments of the present invention, the component combinations used (such as: the combination between the connecting tube, the rotating ring body, the resistance ring body, and the oil film) are not easily offset by gravity, and can generate a higher rotational resistance during the rotation operation, so as to accurately control the rotation angle of the rotating mechanism.

[0051] Furthermore, in the camera rotating device disclosed in the embodiment of the present invention, in order to enable the oil film to be more conducive to generating the rotational resistance, the rotating mechanism preferably has at least part of the following multiple features: the rotating ring body and the resistance ring body respectively abut against the two side edges of the resistance part (or the two metal rings), and the resistance ring body covers the top edge of the resistance part and is spaced apart from each other; the material of each of the metal rings is different from the material of the intermediate ring, the rotating ring body, and the resistance ring body.

[0052] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention's specification and drawings are included in the patent scope of the present invention.

Claims

1. A monocular telescope, characterized in that: The monocular telescope comprises: A telescope body having an observation end and a mounting end located at opposite ends; A camera rotating device, comprising: A connecting tube, detachably mounted on the mounting end of the telescope body, and the connecting tube includes a resistance portion forming an outer surface thereof; wherein the outer surface of the connecting tube is divided into a front section and a rear section by the resistance portion; A rotating ring body, sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on the outer edge thereof; a resistance ring body, sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, the resistance ring body, and the resistance part together form a configuration space; an oil film located within the configuration space; and a driver, comprising a motor and a transmission mechanism engaged with at least one of the teeth, wherein the relative positions of the driver and the coupling cylinder are kept fixed; and A camera device is detachably mounted on the rotating ring body of the camera rotating device; wherein the motor of the driver can be used to receive an electronic signal to drive the transmission mechanism to shift at least one of the teeth, thereby driving the camera device through the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance part, and generating a rotation resistance through the oil film synchronously during the rotation operation.

2. The monocular telescope according to claim 1, characterized in that: The resistance part is annular and has two side edges and a top edge connected to the two side edges. The rotating ring body and the resistance ring body respectively abut against the two side edges of the resistance part, and the resistance ring body covers the top edge of the resistance part and is spaced apart from each other.

3. The monocular telescope according to claim 1, characterized in that: The connecting tube includes a cylinder body installed at the installation end, and the resistance part of the connecting tube has: an intermediate ring integrally formed with the cylinder; and Two metal rings are sleeved on the cylinder and respectively abut against opposite sides of the intermediate ring; wherein the material of each metal ring is different from the material of the intermediate ring.

4. The monocular telescope according to claim 3, characterized in that: The material of each of the metal rings is further defined as copper metal and is different from the material of the rotating ring body and the resistance ring body.

5. The monocular telescope according to claim 1, characterized in that: The resistance ring body has a plurality of screw holes formed through the rotating ring body, and the camera rotating device includes a plurality of adjustment bolts, which are respectively screwed into the plurality of screw holes and abut against the rotating ring body.

6. The monocular telescope according to claim 1, characterized in that: The rotating ring body includes a ring body, and the plurality of teeth are an annular rack detachably mounted on the ring body; or, the plurality of teeth are integrally formed on the outer edge of the rotating ring body.

7. The monocular telescope according to claim 1, characterized in that: The camera rotating device includes a carrier that does not touch the camera device, and the connecting tube and the driver are installed on the carrier so that their relative positions are kept fixed; wherein the transmission mechanism includes: a worm gear meshed with at least one of the teeth; and A universal joint connects the worm and the output shaft of the motor so that the worm and the output shaft are in a non-parallel configuration.

8. A camera rotating device, characterized in that: The camera rotating device comprises: A carrier; A coupling tube, mounted on the carrier and comprising a resistance portion forming an outer surface thereof; wherein the outer surface of the coupling tube is divided into a front section and a rear section by the resistance portion; A rotating ring body, sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on the outer edge thereof; a resistance ring body, sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, the resistance ring body, and the resistance part together form a configuration space; an oil film located within the configuration space; and A driver, mounted on the carrier to keep the relative position with the engagement cylinder fixed; wherein the driver comprises a motor and a transmission mechanism engaged with at least one of the teeth; Among them, the motor of the driver can be used to receive an electronic signal to drive the transmission mechanism to move at least one of the teeth, thereby causing the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance part, and synchronously generate a rotational resistance through the oil film during the rotation operation.

9. The camera rotating device according to claim 8, characterized in that: The resistance ring body has a plurality of screw holes formed through the rotating ring body, and the camera rotating device includes a plurality of adjustment bolts, which are respectively screwed into the plurality of screw holes and abut against the rotating ring body; wherein the connecting tube includes a cylinder body installed at the installation end, and the resistance portion of the connecting tube is annular and has: an intermediate ring integrally formed with the cylinder; and Two metal rings are sleeved on the cylinder and respectively abut against opposite sides of the intermediate ring; wherein the material of each metal ring is different from the material of the intermediate ring, the rotating ring body, and the resistance ring body; The rotating ring body and the resistance ring body respectively abut against two side edges of the two metal rings that are away from each other, and the resistance ring body covers the intermediate ring and the top edges of the two metal rings and is spaced apart from each other.

10. A rotating mechanism for a monocular telescope, characterized in that: The rotating mechanism of the monocular telescope comprises: A connecting tube, comprising a resistance portion forming an outer surface thereof; wherein the outer surface of the connecting tube is divided into a front section and a rear section by the resistance portion; A rotating ring body, sleeved on the rear section of the connecting tube, and the rotating ring body is provided with a plurality of teeth arranged in a ring shape on the outer edge thereof; a resistance ring body, sleeved on the front section of the connecting tube and fixed to the rotating ring body, so that the rotating ring body, the resistance ring body, and the resistance part together form a configuration space; and An oil film is located within the configuration space; wherein the rotating mechanism can be moved through at least one of the teeth, thereby causing the rotating ring body and the resistance ring body to perform a rotation operation relative to the resistance part, and synchronously generate a rotation resistance through the oil film during the rotation operation.

Images