Holder structure

Abstract

The utility model is applicable to the technical field of holders, and provides a holder structure which comprises a shell, a rotating part and a driving assembly, the driving assembly comprises a motor, a driving synchronizing wheel, a shaft sleeve, a mounting shaft, a driven synchronizing wheel, a synchronous belt, a driving gear, an auxiliary gear and an elastic connecting structure, according to the cradle head structure, the shell, the rotating piece and the driving assembly are arranged, the gear teeth of the driving gear make contact with one side face of the gear teeth of the driven gear to drive the driven gear to rotate, meanwhile, the elastic connecting structure is used for enabling the auxiliary gear and the driving gear to have the trend of relative rotation. Due to the fact that the elastic connecting piece enables the auxiliary gear and the driving gear to have the tendency of relative rotation, the gear teeth of the auxiliary gear and the other side face of the gear teeth of the driven gear are kept in pressing contact, gaps between the teeth in gear transmission are reduced, the gear transmission precision is improved, the driven gear rotates stably, and the service life of the gear is prolonged. Therefore, the rotating member drives the video recording device to rotate stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of pan platforms, and in particular relates to a pan platform structure. Background Art

[0002] The gimbal is a supporting device for installing and fixing mobile phones, cameras, and camcorders. It is divided into two types: fixed and electric gimbals. The gimbal can be rotated at will, which is convenient for users to use.

[0003] In the existing pan-tilt structure, the camera is generally driven to rotate by the rotation of gears. In traditional gear transmission, there will be a gap between the teeth when they are meshing. This gap will reduce the accuracy of the mechanical structure and cause the rotating camera to shake and become unstable, affecting the shooting quality. Utility Model Content

[0004] The utility model provides a pan / tilt structure, aiming to solve the above problems.

[0005] The utility model is implemented in this way: a pan / tilt structure, comprising:

[0006] case;

[0007] A rotating member rotatably mounted on the housing is used to drive the video recording device to rotate, wherein the rotating member includes a driven gear;

[0008] The driving assembly installed in the housing is used to drive the rotating member to rotate. The driving assembly includes:

[0009] A motor is fixed in the housing, and an active synchronous wheel is fixed on the output shaft of the motor;

[0010] A shaft sleeve arranged on one side of the driven gear is rotated, a mounting shaft is coaxially passed through the shaft sleeve, the shaft sleeve and the mounting shaft are rotatably connected with the housing, a driven synchronous wheel is fixed on the shaft sleeve, and the driven synchronous wheel is connected to the driving synchronous wheel through a synchronous belt;

[0011] A driving gear fixedly arranged on one end of the mounting shaft close to the driven gear;

[0012] An auxiliary gear is fixedly arranged on one end of the shaft sleeve close to the driven gear, wherein the gear teeth of the driving gear and the auxiliary gear are arranged alternately and are in contact with two side surfaces of the gear teeth of the driven gear respectively;

[0013] The elastic connection structure connected between the mounting shaft and the driven synchronous wheel is used to make the auxiliary gear and the driving gear have a tendency to rotate relative to each other.

[0014] Preferably, the elastic connection structure comprises:

[0015] A connecting piece fixed to one end of the rotating shaft;

[0016] A tension spring with one end connected to the connecting piece and the other end connected to the end face of the driven synchronous wheel. In a natural state, the tension spring is in a stretched state, so that the auxiliary gear and the driving gear have a tendency to rotate relative to each other.

[0017] Preferably, the rotating member further comprises a connecting ring fixed coaxially with the driven gear, the connecting ring is rotatably connected to the housing, a mounting through hole for mounting the connecting ring is provided on the housing, and a connecting plate for mounting a video recording device is fixedly mounted on the connecting ring.

[0018] Preferably, the connecting plate is L-shaped, and the connecting ring and the connecting plate are fixed by screws.

[0019] Preferably, a monitoring component is installed in the housing for monitoring the rotation angle of the driven gear, and the monitoring component comprises:

[0020] A mounting frame, the mounting frame is fixedly connected to the housing;

[0021] An encoder fixed on the mounting frame, wherein the shaft of the encoder is coaxially arranged with the driven gear;

[0022] A connecting sleeve is fixed on the driven gear and is fixedly connected to the shaft of the encoder.

[0023] Preferably, a mounting plate is horizontally slidably mounted on the connecting plate, the video recording device is fixed on the mounting plate, a horizontally arranged electric push rod is fixed on the connecting plate, and the telescopic end of the electric push rod is fixedly connected to the mounting plate.

[0024] Preferably, a support rod is fixed to one end of the mounting plate away from the housing, a slider is fixed to one end of the support rod close to the housing, and the slider is horizontally slidably connected to the connecting plate.

[0025] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0026] The pan / tilt structure provided by the utility model is provided with a shell, a rotating part and a driving component, wherein the driving component includes a motor, an active synchronous wheel, a shaft sleeve, a mounting shaft, a driven synchronous wheel, a synchronous belt, a driving gear, an auxiliary gear and an elastic connection structure. The motor drives the active synchronous wheel to rotate, the active synchronous wheel drives the driven synchronous wheel to rotate through the synchronous belt, the driven synchronous wheel drives the shaft sleeve to rotate, the shaft sleeve drives the active gear to rotate, the gear teeth of the active gear are in contact with one side of the gear teeth of the driven gear to drive the driven gear to rotate, and at the same time, due to the elastic connecting part, the auxiliary gear and the active gear have a tendency to rotate relative to each other, the gear teeth of the auxiliary gear maintain a pressed contact with the other side of the gear teeth of the driven gear, thereby reducing the gap between the teeth in the gear transmission, improving the accuracy of the gear transmission, making the driven gear rotate smoothly, and thus the rotating part drives the video recording equipment to rotate smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the internal structure of a shell of a pan / tilt structure provided by the utility model;

[0028] Figure 2 yes Figure 1 A front view of

[0029] Figure 3 It is a structural schematic diagram of a driving component and a monitoring component in a pan-tilt structure provided by the utility model;

[0030] Figure 4 It is a structural schematic diagram of a driving gear, an auxiliary gear, and a connecting piece in a pan / tilt structure provided by the utility model;

[0031] Figure 5 This is a schematic structural diagram of another perspective of a driving gear, an auxiliary gear, and a connecting piece in a pan / tilt structure provided by the utility model;

[0032] Figure 6 yes Figure 5 AA section view in;

[0033] Figure 7 It is a structural schematic diagram of a connecting sleeve and a connecting ring in a pan / tilt structure provided by the utility model;

[0034] Figure 8 It is a schematic diagram of a pan / tilt structure provided by the utility model.

[0035] Notes on the accompanying drawings: 1. Housing; 2. Motor; 3. Synchronous belt; 4. Connector; 5. Driven synchronous wheel; 6. Mounting frame; 7. Angle sensor; 8. Driven gear; 9. Connecting plate; 10. Electric push rod; 11. Mounting plate; 12. Support rod; 13. Driving gear; 14. Auxiliary gear; 15. Bushing; 16. Mounting shaft; 17. Tension spring; 18. Connecting sleeve; 19. Connecting ring. DETAILED DESCRIPTION

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] The utility model embodiment provides a pan-tilt structure, such as Figure 1-Figure 8 As shown, including:

[0039] Shell 1;

[0040] A rotating member rotatably mounted on the housing 1 may be rotatably mounted via a bearing and used to drive the video recording device to rotate, wherein the rotating member includes a driven gear 8;

[0041] The driving assembly installed in the housing 1 is used to drive the rotating member to rotate. The driving assembly includes:

[0042] The motor 2 fixed in the housing 1 can be fixed by bolts, and an active synchronous wheel is fixed on the output shaft of the motor 2;

[0043] A shaft sleeve 15 is rotated on one side of the driven gear 8, and a mounting shaft 16 is coaxially passed through the shaft sleeve 15. The shaft sleeve 15 and the mounting shaft 16 are rotatably connected to the housing 1 and may be rotatably connected through a bearing. A driven synchronous wheel 5 is fixed on the shaft sleeve 15, and the driven synchronous wheel 5 is connected to the driving synchronous wheel through a synchronous belt 3;

[0044] The driving gear 13 is fixedly mounted on the end of the mounting shaft 16 close to the driven gear 8, and the mounting shaft 16 and the driving gear 13 can be integrally mounted;

[0045] The auxiliary gear 14 is fixedly arranged on the end of the shaft sleeve 15 close to the driven gear 8. The shaft sleeve 15 and the auxiliary gear 14 can be arranged in one piece. The gear teeth of the driving gear 13 and the auxiliary gear 14 are arranged alternately and contact the two side surfaces of the gear teeth of the driven gear 8 respectively.

[0046] The elastic connection structure connected between the mounting shaft 16 and the driven synchronous wheel 5 is used to make the auxiliary gear 14 and the driving gear 13 have a tendency to rotate relative to each other;

[0047] During operation, the motor 2 is started to rotate, and the motor 2 drives the active synchronous wheel to rotate, and the active synchronous wheel drives the driven synchronous wheel 5 to rotate through the synchronous belt 3, and the driven synchronous wheel 5 drives the shaft sleeve 15 to rotate, and the shaft sleeve 15 drives the active gear 13 to rotate, and the gear teeth of the active gear 13 are in contact with one side of the gear teeth of the driven gear 8 to drive the driven gear 8 to rotate. At the same time, due to the elastic connecting member 4, the auxiliary gear 14 and the active gear 13 have a tendency to rotate relative to each other, so that the gear teeth of the auxiliary gear 14 and the other side of the gear teeth of the driven gear 8 maintain a pressed contact, reducing the gap between the teeth in the gear transmission, improving the accuracy of the gear transmission, and making the driven gear 8 rotate smoothly, so that the rotating member drives the video recording equipment to rotate smoothly, reducing the jitter and improving the shooting quality.

[0048] Wherein, the elastic connection structure comprises:

[0049] A connecting piece 4 fixed to one end of the rotating shaft can be plugged and fixed to the rotating shaft;

[0050] A tension spring 17 connected to the connecting member 4 at one end, and the other end of the tension spring 17 connected to the end face of the driven synchronous wheel 5. In a natural state, the tension spring 17 is in a stretched state, so that the connecting member 4 and the driven synchronous wheel 5 have a tendency to rotate relative to each other, thereby making the auxiliary gear 14 and the driving gear 13 have a tendency to rotate relative to each other; the two ends of the tension spring 17 can be hooked with the pins on the end faces of the connecting member 4 and the driven synchronous wheel 5, respectively. Of course, other installation methods can also be used without too much restriction;

[0051] Specifically, the rotating member further includes a connecting ring 19 fixed coaxially with the driven gear 8, and the connecting ring 19 and the driven gear 8 can be integrally arranged, and the connecting ring 19 is rotatably connected to the housing 1, and can be rotatably connected through a bearing, and the housing 1 is provided with a mounting through hole for mounting the connecting ring 19, and a connecting plate 9 for mounting a video recording device is fixedly mounted on the connecting ring 19. In this embodiment, the connecting plate 9 is L-shaped, and the connecting ring 19 and the connecting plate 9 can be fixed by screws;

[0052] Preferably, a monitoring component is installed in the housing 1 for monitoring the rotation angle of the driven gear 8, and the monitoring component includes:

[0053] A mounting frame 6, wherein the mounting frame 6 is fixedly connected to the housing 1 and can be fixed by screws;

[0054] The encoder fixed on the mounting frame 6 can be fixed by screws, and the shaft of the encoder is coaxially arranged with the driven gear 8;

[0055] A connecting sleeve 18 is fixed on the driven gear 8 and fixedly connected to the shaft of the encoder, and the connecting sleeve 18 and the driven gear 8 can be integrally arranged;

[0056] The rotation angle of the driven gear 8 is detected by an encoder. The encoder is a prior art, and its installation and use are not described in detail.

[0057] In this embodiment, a mounting plate 11 is horizontally slidably installed on the connecting plate 9, and the recording device is fixed on the mounting plate 11 and can be fixed by screws. A horizontally arranged electric push rod 10 is fixed on the connecting plate 9, and the telescopic end of the electric push rod 10 is fixedly connected to the mounting plate 11. By extending or shortening the electric push rod 10, the mounting plate 11 and the recording device thereon can be driven to move horizontally, thereby adjusting the position of the recording device.

[0058] Furthermore, a support rod 12 is fixed to one end of the mounting plate 11 away from the housing 1, and a slider is fixed to one end of the support rod 12 close to the housing 1, and the slider is horizontally slidably connected to the connecting plate 9;

[0059] When the mounting plate 11 extends out of the connecting plate 9, the support rods 12 provide auxiliary support to the mounting plate 11, thereby improving the stability of the mounting plate 11 and the video recording equipment thereon.

[0060] A controller can be installed in the housing. The controller can be a single-chip microcomputer, which is electrically connected to components such as a motor, an encoder, and an electric push rod to perform electrical control. This is existing technology and will not be described in detail.

[0061] In summary, the utility model provides a pan-tilt structure, and its working principle is as follows:

[0062] The motor 2 is started to rotate, and the motor 2 drives the active synchronous wheel to rotate. The active synchronous wheel drives the driven synchronous wheel 5 to rotate through the synchronous belt 3. The driven synchronous wheel 5 drives the sleeve 15 to rotate, and the sleeve 15 drives the active gear 13 to rotate. The gear teeth of the active gear 13 contact one side of the gear teeth of the driven gear 8 to drive the driven gear 8 to rotate. At the same time, due to the elastic connecting member 4, the auxiliary gear 14 and the active gear 13 have a tendency to rotate relative to each other, so that the gear teeth of the auxiliary gear 14 and the other side of the gear teeth of the driven gear 8 maintain a tight contact, reducing the gap between the teeth in the gear transmission, improving the accuracy of the gear transmission, and making the driven gear 8 rotate smoothly, so that the rotating member drives the video recording equipment to rotate smoothly, reducing the jitter and improving the shooting quality. By extending or shortening the electric push rod 10, the mounting plate 11 and the video recording equipment thereon can be driven to move horizontally to adjust the position of the video recording equipment.

[0063] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A pan / tilt structure, characterized in that: include: case; A rotating member rotatably mounted on the housing is used to drive the video recording device to rotate, wherein the rotating member includes a driven gear; The driving assembly installed in the housing is used to drive the rotating member to rotate. The driving assembly includes: A motor is fixed in the housing, and an active synchronous wheel is fixed on the output shaft of the motor; A shaft sleeve arranged on one side of the driven gear is rotated, a mounting shaft is coaxially passed through the shaft sleeve, the shaft sleeve and the mounting shaft are rotatably connected with the housing, a driven synchronous wheel is fixed on the shaft sleeve, and the driven synchronous wheel is connected to the driving synchronous wheel through a synchronous belt; A driving gear fixedly arranged on one end of the mounting shaft close to the driven gear; An auxiliary gear is fixedly arranged on one end of the shaft sleeve close to the driven gear, wherein the gear teeth of the driving gear and the auxiliary gear are arranged alternately and are in contact with two side surfaces of the gear teeth of the driven gear respectively; The elastic connection structure connected between the mounting shaft and the driven synchronous wheel is used to make the auxiliary gear and the driving gear have a tendency to rotate relative to each other.

2. The pan / tilt structure according to claim 1, characterized in that: The elastic connection structure comprises: A connecting piece fixed to one end of the rotating shaft; A tension spring with one end connected to the connecting piece and the other end connected to the end face of the driven synchronous wheel. In a natural state, the tension spring is in a stretched state, so that the auxiliary gear and the driving gear have a tendency to rotate relative to each other.

3. The pan / tilt structure according to claim 1, characterized in that: The rotating member also includes a connecting ring fixed coaxially with the driven gear, the connecting ring is rotatably connected to the housing, a mounting through hole for mounting the connecting ring is provided on the housing, and a connecting plate for mounting a video recording device is fixedly mounted on the connecting ring.

4. The pan / tilt structure according to claim 3, characterized in that: The connecting plate is L-shaped, and the connecting ring and the connecting plate are fixed by screws.

5. The pan / tilt structure according to claim 1, characterized in that: A monitoring component is installed in the housing for monitoring the rotation angle of the driven gear. The monitoring component includes: A mounting frame, the mounting frame is fixedly connected to the housing; An encoder fixed on the mounting frame, wherein the shaft of the encoder is coaxially arranged with the driven gear; A connecting sleeve is fixed on the driven gear and is fixedly connected to the shaft of the encoder.

6. The pan / tilt structure according to claim 3, characterized in that: A mounting plate is horizontally slidably mounted on the connecting plate, the video recording device is fixed on the mounting plate, a horizontally arranged electric push rod is fixed on the connecting plate, and the telescopic end of the electric push rod is fixedly connected to the mounting plate.

7. The pan / tilt structure according to claim 6, characterized in that: A support rod is fixed to one end of the mounting plate away from the housing, a slider is fixed to one end of the support rod close to the housing, and the slider is horizontally slidably connected to the connecting plate.

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