Synchronous belt mechanism and imaging device

Abstract

The utility model belongs to the technical field of synchronous belts, and particularly provides a synchronous belt mechanism and a photographic device.The photographic device comprises the synchronous belt mechanism, the synchronous belt mechanism comprises a driven wheel, a driving wheel, a synchronous belt, a motor, a support, a locking piece and a torsional spring, the driven wheel and the driving wheel are sequentially arranged in the first direction and connected through the synchronous belt, and the motor is connected with the driving wheel; the motor is arranged on the support in a sliding mode in the first direction, the torsional spring is arranged on the motor support and abuts against the motor, the torsional spring applies thrust pointing to the first direction to the motor, and the locking piece is connected with the motor and the support and can fix the motor to the support. The push force of the torsion spring is used for replacing manpower to tension the synchronous belt, the labor intensity of workers can be reduced, in addition, due to the fact that the push force provided by the torsion spring is stable compared with manpower, the tightness degree of the synchronous belt can be conveniently controlled, repeated adjustment is not needed, the tightness degree of the synchronous belt can be rapidly and accurately adjusted in place, use of a frequency device is reduced, and the working efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of synchronous belts, and in particular, relates to a synchronous belt mechanism and a camera device. Background Art

[0002] After working for a period of time, the synchronous belt will usually become loose and needs to be tightened to ensure its normal operation. At present, the way to tighten the synchronous belt is generally for employees to tighten the synchronous belt manually based on their experience, and then use a frequency meter to detect the vibration frequency of the synchronous belt to verify whether the tightness of the synchronous belt is adjusted in place. This method is labor-intensive and has low work efficiency. Utility Model Content

[0003] The purpose of the present application is to provide a camera device, aiming to solve the technical problems of high labor intensity and low work efficiency in the prior art method of tightening the synchronous belt.

[0004] On the one hand, to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a synchronous belt mechanism, including a driven wheel, a driving wheel, a synchronous belt, a motor, a bracket, a locking piece and a torsion spring. The driven wheel and the driving wheel are arranged in sequence along a first direction and are connected by a synchronous belt. The motor is connected to the driving wheel. The motor is slidably arranged on the bracket along the first direction. The torsion spring is arranged on the motor bracket and abuts against the motor. The torsion spring applies a thrust to the motor pointing to the first direction. The locking piece connects the motor and the bracket and can fix the motor on the bracket.

[0005] Compared with the prior art, the beneficial effect of the synchronous belt mechanism provided by the present application is that: when the synchronous belt is loose, the locking piece is loosened so that the motor is in a movable state in the first direction, the torsion spring pushes the motor to move along the first direction on the bracket, and the motor then drives the driving wheel to move along the first direction, that is, to move away from the driven wheel, thereby tightening the synchronous belt. After adjusting to the right position, the locking piece is tightened to fix the motor on the bracket. Using the thrust of the torsion spring instead of manpower to tighten the synchronous belt can reduce the labor intensity of employees. In addition, since the thrust provided by the torsion spring is more stable than manpower, it is easy to control the tightness of the synchronous belt without repeated adjustment. The tightness of the synchronous belt can be adjusted to the right position relatively quickly and accurately, reducing the use of the frequency device and improving work efficiency.

[0006] Furthermore, the bracket includes a vertical plate and a bottom plate, the vertical plate is arranged on the bottom plate and is arranged perpendicular to the bottom plate, the locking member connects the motor and the vertical plate, and the torsion spring is arranged on the bottom plate.

[0007] Furthermore, the torsion spring has a fixed end and a movable end, the fixed end is fixed on the bottom plate, and the movable end abuts against the motor. When the movable end pushes the motor to move along the first direction, the distance between the movable end and the vertical plate is reduced.

[0008] Furthermore, the bottom plate is provided with fixing holes for threaded fasteners to pass through.

[0009] Furthermore, the bracket is provided with a waist-shaped hole, which is extended along the first direction, and the motor is provided with a threaded hole, and the locking piece passes through the waist-shaped hole and is threadedly connected with the threaded hole.

[0010] Furthermore, the bracket is also provided with a connecting hole, the motor includes a motor body and an output shaft, the motor body is provided with a threaded hole, the motor body and the driving wheel are respectively located on opposite sides of the vertical plate, one end of the output shaft is connected to the motor body, and the other end of the output shaft is connected to the driving wheel after passing through the connecting hole.

[0011] Furthermore, the bracket is provided with two first mounting parts and two second mounting parts, the torsion spring includes a movable frame, two spiral bodies and two pins, the movable frame is abutted against the motor, the two spiral bodies are respectively connected to the opposite sides of the movable frame, and are respectively mounted on the two first mounting parts, the two pins are respectively connected to one end of the two spiral bodies away from the movable frame, and one end of the two pins away from the spiral bodies are respectively fixed on the two second mounting parts.

[0012] Furthermore, the bracket is provided with a mounting hole, the mounting hole has two mounting walls arranged opposite to each other, and each mounting wall is provided with a first mounting portion and a second mounting portion.

[0013] Furthermore, one end of the second mounting portion is connected to the mounting wall, and a stopper is provided at the other end of the second mounting portion; an ear is provided at one end of the pin away from the spiral body, the ear is sleeved on the second mounting portion, and is clamped between the stopper and the mounting wall.

[0014] On the other hand, in order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a camera device, including a shell, a lens assembly and the above-mentioned synchronous belt mechanism, the lens assembly is connected to the shell, the synchronous belt mechanism is arranged in the shell, and the driven wheel is connected to the lens assembly to drive the lens assembly to rotate.

[0015] Compared with the prior art, the camera device provided by the present application has the beneficial effect that the synchronous belt mechanism is connected to the lens assembly through the driven wheel, and can drive the lens assembly to rotate to adjust the camera angle. When the synchronous belt is loose, the locking piece is loosened so that the motor is in a movable state in the first direction, and the torsion spring pushes the motor to move along the first direction on the bracket, and the motor then drives the driving wheel to move along the first direction, that is, to move in the direction away from the driven wheel, so as to tighten the synchronous belt. After adjusting to the right position, the locking piece is tightened to fix the motor on the bracket. Using the thrust of the torsion spring instead of manpower to tighten the synchronous belt can reduce the labor intensity of employees. In addition, since the thrust provided by the torsion spring is more stable than manpower, it is easy to control the tightness of the synchronous belt without repeated adjustment. The tightness of the synchronous belt can be adjusted to the right position relatively quickly and accurately, reducing the use of the frequency device and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a camera device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a partial structure of a synchronous belt mechanism provided in an embodiment of the present application;

[0019] Figure 3 for Figure 2 An exploded view of the timing belt mechanism shown;

[0020] Figure 4 for Figure 2 The disassembled structure diagram of the bracket and torsion spring of the synchronous belt mechanism is shown.

[0021] Among them, the reference numerals in the figure are:

[0022] 10. Driven wheel; 20. Driving wheel; 30. Synchronous belt; 40. Motor; 41. Motor body; 42. Output shaft; 50. Bracket; 51. Vertical plate; 511. Waist-shaped hole; 512. Connecting hole; 52. Bottom plate; 521. First mounting part; 522. Second mounting part; 523. Mounting hole; 524. Stopper; 525. Fixing hole; 526. Mounting wall; 60. Locking member; 70. Torsion spring; 71. Movable frame; 711. Abutment arm; 712. Connecting arm; 72. Helix; 73. Pin; 731. Hanging ear; 701. Fixed end; 702. Movable end; 80. Rubber pad; 90. Shell; 100. Lens assembly. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0024] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Combination Figure 1 and Figure 2 As shown, an embodiment of the present application provides a synchronous belt mechanism, including a driven wheel 10, a driving wheel 20, a synchronous belt 30, a motor 40, a bracket 50, a locking member 60 and a torsion spring 70. The driven wheel 10 and the driving wheel 20 are arranged in sequence along a first direction and are connected by the synchronous belt 30. The motor 40 is connected to the driving wheel 20. The motor 40 is slidably arranged on the bracket 50 along the first direction. The torsion spring 70 is arranged on the motor 40 bracket 50 and abuts against the motor 40. The torsion spring 70 applies a thrust to the motor 40 pointing to the first direction. The locking member 60 connects the motor 40 and the bracket 50, and can fix the motor 40 on the bracket 50.

[0028] When the synchronous belt 30 is loose, the locking member 60 is loosened to make the motor 40 movable in the first direction, and the torsion spring 70 pushes the motor 40 to move along the first direction on the bracket 50, and the motor 40 then drives the driving wheel 20 to move along the first direction, that is, to move away from the driven wheel 10, so as to tighten the synchronous belt 30. After adjusting to the right position, the locking member 60 is tightened to fix the motor 40 on the bracket 50. Using the thrust of the torsion spring 70 instead of manpower to tighten the synchronous belt 30 can reduce the labor intensity of employees. In addition, since the thrust provided by the torsion spring 70 is more stable than manpower, it is easy to control the tightness of the synchronous belt 30 without repeated adjustment. The tightness of the synchronous belt 30 can be adjusted to the right position relatively quickly and accurately, reducing the use of frequency devices and improving work efficiency.

[0029] In one implementation, Figure 3 As shown, the bracket 50 is provided with a waist-shaped hole 511, and the waist-shaped hole 511 is extended along the first direction. The motor 40 is provided with a threaded hole (not shown), and the locking member 60 is threadedly connected with the threaded hole after passing through the waist-shaped hole 511. Specifically, the locking member 60 is provided with an external thread, and the threaded hole is provided with an internal thread. When installing, the motor 40 is placed on the bracket 50 so that the threaded hole of the motor 40 is aligned with the waist-shaped hole 511 of the bracket 50, and then the locking member 60 is inserted into the threaded hole after passing through the waist-shaped hole 511. The motor 40 is fixed to the bracket 50 through the cooperation of the external thread and the internal thread. When installing for the first time, it is not necessary to completely tighten the locking member 60, the purpose is to reserve the movable space of the motor 40, and then the synchronous belt 30 is sleeved on the driving wheel 20 and the driven wheel 10, and the motor 40 and the torsion spring 70 are pressed against each other, so that the synchronous belt 30 is tightened, and then the locking member 60 is tightened to lock the motor 40 on the bracket 50. When the synchronous belt 30 becomes loose, slightly loosen the locking piece 60 to make the motor 40 movable. Since the waist-shaped hole 511 is extended along the first direction, the locking piece 60 can move along the extension direction of the waist-shaped hole 511, and the extension direction of the waist-shaped hole 511 is the same as the first direction, so that the torsion spring 70 can push the motor 40 to move along the first direction on the bracket 50. The motor 40 then drives the driving wheel 20 to move along the first direction, that is, moves away from the driven wheel 10, thereby tightening the synchronous belt 30. After adjusting to the right position, retighten the locking piece 60 to lock the motor 40 on the bracket 50.

[0030] In one embodiment, Figure 3As shown, the number of waist-shaped holes 511, threaded holes and locking members 60 are all multiple and the same, and the multiple locking members 60 are respectively threadedly connected with the multiple threaded holes after passing through the multiple waist-shaped holes 511. By providing multiple waist-shaped holes 511, multiple threaded holes and multiple locking members 60, the connection stability and connection reliability between the motor 40 and the bracket 50 can be improved. In addition, the motor 40 can be prevented from rotating during the movement process, ensuring that the motor 40 stably moves linearly along the first direction.

[0031] In one embodiment, Figure 3 As shown, the bracket 50 is also provided with a connecting hole 512, the motor 40 includes a motor body 41 and an output shaft 42, the motor body 41 is provided with a threaded hole, the motor body 41 and the driving wheel 20 are respectively located on opposite sides of the bracket 50, one end of the output shaft 42 is connected to the motor body 41, and the other end of the output shaft 42 is connected to the driving wheel 20 after passing through the connecting hole 512. During operation, the motor body 41 drives the output shaft 42 to rotate, and transmits the rotating power to the driving wheel 20 through the output shaft 42, thereby driving the driving wheel 20 to rotate. In terms of installation, by arranging the motor body 41 and the driving wheel 20 on opposite sides of the bracket 50, it is beneficial to balance the gravity of the motor body 41 and the pulling force of the synchronous belt 30 on the driving wheel 20, thereby improving the stability of the bracket 50. It should be noted that the diameter of the connecting hole 512 is larger than the diameter of the output shaft 42, so as to provide space for the movement of the motor 40.

[0032] In one embodiment, Figure 4 As shown, the bracket 50 is provided with two first mounting parts 521 and two second mounting parts 522, and the torsion spring 70 includes a movable frame 71, two spiral bodies 72 and two pins 73. The movable frame 71 abuts against the motor 40, and the two spiral bodies 72 are respectively connected to the opposite sides of the movable frame 71 and are respectively sleeved on the two first mounting parts 521, and the two pins 73 are respectively connected to one end of the two spiral bodies 72 away from the movable frame 71, and the two ends of the two pins 73 away from the spiral bodies 72 are respectively fixed on the two second mounting parts 522. In the embodiment of the present application, the torsion spring 70 is a double torsion spring 70, and the torsion force is jointly provided by the two spiral bodies 72. The two spiral bodies 72 are sleeved on the two first mounting parts 521 of the bracket 50, and one end of the spiral body 72 is connected to the pin 73, and the pin 73 is fixed on the first mounting part 521 of the bracket 50. The movable frame 71 at the other end of the spiral body 72 is connected between the movable ends 702 of the two spiral bodies 72, and is jointly driven to move by the two spiral bodies 72, thereby pushing the motor 40 to move along the first direction.

[0033] In one embodiment, Figure 4As shown, the movable frame 71 includes an abutting arm 711 and two connecting arms 712. The abutting arm 711 abuts against the motor 40, and both ends of the abutting arm 711 are respectively connected to the two connecting arms 712, and the ends of the two connecting arms 712 away from the abutting arm 711 are respectively connected to the two spiral bodies 72.

[0034] In one embodiment, Figure 4 As shown, the bracket 50 is provided with a mounting hole 523, and the mounting hole 523 has two mounting walls 526 arranged opposite to each other, and each mounting wall 526 is provided with a first mounting portion 521 and a second mounting portion 522. By opening the mounting hole 523 on the bracket 50 and providing the first mounting portion 521 and the second mounting portion 522 on the mounting wall 526 of the mounting hole 523, a part of the torsion spring 70 can be accommodated in the mounting hole 523, so that the overall structure is more compact.

[0035] In one embodiment, Figure 4 As shown, one end of the second mounting portion 522 is connected to the mounting wall 526, and the other end of the second mounting portion 522 is provided with a stopper 524. The end of the pin 73 away from the spiral body 72 is provided with a hanging ear 731, which is sleeved on the second mounting portion 522 and clamped between the stopper 524 and the mounting wall 526. On the one hand, by providing the hanging ear 731 on the end of the pin 73, the hanging ear 731 is sleeved on the second mounting portion 522, so that the pin 73 can be restricted from rotating. On the other hand, by providing the stopper 524 on the end of the second mounting portion 522 away from the mounting wall 526, the hanging ear 731 is clamped between the stopper 524 and the mounting wall 526, so that the hanging ear 731 is not easily separated from the second mounting portion 522, thereby improving the stability and reliability of the torsion spring 70.

[0036] In one embodiment, Figure 2 As shown, the bracket 50 includes a vertical plate 51 and a bottom plate 52. The vertical plate 51 is arranged on the bottom plate 52 and is arranged perpendicular to the bottom plate 52. The locking member 60 connects the motor 40 and the vertical plate 51. The torsion spring 70 is arranged on the bottom plate 52. The bracket 50 is composed of the vertical plate 51 and the bottom plate 52 which are perpendicular to each other, and has the advantages of simple structure, easy production, and low production cost. The surface of the vertical plate 51 is flat, which is convenient for installing the motor 40 on the vertical plate 51 by using the locking member 60, and for the motor 40 to move on the vertical plate 51. The bottom plate 52 is arranged perpendicular to the vertical plate 51, plays the role of supporting the vertical plate 51, and is also used for the installation of the torsion spring 70. The torsion spring 70 abuts against the motor 40, and can push the motor 40 to move on the vertical plate 51 along the first direction, that is, the direction away from the bottom plate 52.

[0037] Specifically, Figure 3As shown, the waist-shaped hole 511 and the connecting hole 512 are both provided on the vertical plate 51, the motor body 41 and the driving wheel 20 are respectively located on opposite sides of the vertical plate 51, and the locking member 60 passes through the waist-shaped hole 511 and is threadedly connected with the threaded hole of the motor body 41, thereby fixing the motor 40 on the vertical plate 51; Figure 4 As shown, the mounting hole 523 is opened on the bottom plate 52 , and the torsion spring 70 is fixed on the bottom plate 52 through the first mounting portion 521 and the second mounting portion 522 .

[0038] In one embodiment, Figure 4 As shown, the bottom plate 52 is also provided with a fixing hole 525 for threaded fasteners to pass through. The synchronous belt mechanism as a driving device can be applied to various devices, and the bracket 50 is used to connect with external devices. During installation, the threaded fasteners are passed through the fixing holes 525 of the bottom plate 52 and then threadedly connected with the screw holes provided in the external device, thereby fixing the bracket 50 on the external device.

[0039] In one embodiment, Figure 2 As shown, the torsion spring 70 has a fixed end 701 and a movable end 702, the fixed end 701 is fixed on the bottom plate 52, and the movable end 702 is in contact with the motor 40. When the movable end 702 pushes the motor 40 to move along the first direction, the distance between the movable end 702 and the vertical plate 51 is reduced. The movement form of the torsion spring 70 is torsion, the fixed end 701 is fixed on the bottom plate 52 and does not move, and the movable end can move relative to the fixed end 701, so that it can be used to push the motor 40 to move. For the sake of convenience of explanation, the part where the surface of the motor 40 abuts against the movable end 702 is named as the contact surface. Since the moving end moves along an arc, when the moving end abuts against the contact surface, the total force applied by the moving end to the motor 40 is not perpendicular to the contact surface, but can be decomposed into two forces, one of which is perpendicular to the contact surface and is used to push the motor 40 to move linearly in the first direction, and the other is parallel to the contact surface. The present application adjusts the angle of the torsion spring 70 so that the force parallel to the contact surface points to the vertical plate 51. While the movable end 702 pushes the motor 40 to move in the first direction, the movable end 702 gradually approaches the vertical plate 51, pressing the motor 40 against the vertical plate 51, so that the motor 40 is more stable when moving in the first direction, thereby facilitating the control of the tightness of the synchronous belt 30.

[0040] Specifically, the fixed end 701 is the pin 73 of the torsion spring 70, the movable end 702 is the movable frame 71 of the torsion spring 70, and the abutment arm 711 of the movable frame 71 is arranged parallel to the vertical plate 51. In the process of the movable frame 71 pushing the motor 40 to move along the first direction, the angle between the connecting arm 712 of the movable frame 71 and the vertical plate 51 gradually decreases, and the distance between the abutment arm 711 of the movable frame 71 and the vertical plate 51 gradually decreases.

[0041] In one embodiment, Figure 3 As shown, the synchronous belt mechanism further includes a rubber pad 80 , which is clamped and installed between the motor 40 and the bracket 50 .

[0042] The present application also provides a camera device, such as Figure 1 As shown, it includes a housing 90, a lens assembly 100 and the above-mentioned synchronous belt mechanism, the lens assembly 100 is connected to the housing 90, the synchronous belt mechanism is arranged in the housing 90, and the driven wheel 10 is connected to the lens assembly 100 to drive the lens assembly 100 to rotate.

[0043] The synchronous belt mechanism is connected to the lens assembly 100 through the driven wheel 10. When working, the motor 40 drives the driving wheel 20 to rotate, and the driving wheel 20 drives the driven wheel 10 to rotate through the synchronous belt 30, and the driven wheel 10 then drives the lens assembly 100 to rotate, so as to adjust the camera angle. When the synchronous belt 30 is loose, the locking member 60 is loosened so that the motor 40 is in a movable state in the first direction, and the torsion spring 70 pushes the motor 40 to move along the first direction on the bracket 50, and the motor 40 then drives the driving wheel 20 to move along the first direction, that is, to move away from the driven wheel 10, so as to tighten the synchronous belt 30. After adjusting to the right position, the locking member 60 is tightened to fix the motor 40 on the bracket 50. Using the thrust of the torsion spring 70 instead of manpower to tighten the synchronous belt 30 can reduce the labor intensity of employees. In addition, since the thrust provided by the torsion spring 70 is more stable than manpower, it is easy to control the tightness of the synchronous belt 30 without repeated adjustments. The tightness of the synchronous belt 30 can be adjusted quickly and accurately, reducing the use of frequency controllers and improving work efficiency.

[0044] The type of the camera device is not limited, and specifically can be an intelligent high-speed spherical camera, referred to as a high-speed ball.

[0045] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A synchronous belt mechanism, characterized in that: The invention comprises a driven wheel, a driving wheel, a synchronous belt, a motor, a bracket, a locking piece and a torsion spring. The driven wheel and the driving wheel are sequentially arranged along a first direction and are connected by the synchronous belt. The motor is connected to the driving wheel. The motor is slidably arranged on the bracket along the first direction. The torsion spring is arranged on the motor bracket and abuts against the motor. The torsion spring applies a thrust pointing to the first direction to the motor. The locking piece connects the motor and the bracket and can fix the motor on the bracket.

2. The synchronous belt mechanism according to claim 1, characterized in that: The bracket comprises a vertical plate and a bottom plate, the vertical plate is arranged on the bottom plate and is arranged perpendicular to the bottom plate, the locking member connects the motor and the vertical plate, and the torsion spring is arranged on the bottom plate.

3. The synchronous belt mechanism according to claim 2, characterized in that: The torsion spring has a fixed end and a movable end, the fixed end is fixed to the bottom plate, and the movable end abuts against the motor. When the movable end pushes the motor to move along the first direction, the distance between the movable end and the vertical plate is reduced.

4. The synchronous belt mechanism according to claim 2, characterized in that: The bottom plate is provided with fixing holes for threaded fasteners to pass through.

5. The synchronous belt mechanism according to claim 1, characterized in that: The bracket is provided with a waist-shaped hole, and the waist-shaped hole is extended along the first direction. The motor is provided with a threaded hole, and the locking piece passes through the waist-shaped hole and is threadedly connected with the threaded hole.

6. The synchronous belt mechanism according to claim 5, characterized in that: The bracket is also provided with a connecting hole, and the motor includes a motor body and an output shaft. The motor body is provided with the threaded hole, and the motor body and the driving wheel are respectively located on opposite sides of the bracket. One end of the output shaft is connected to the motor body, and the other end of the output shaft is connected to the driving wheel after passing through the connecting hole.

7. The synchronous belt mechanism according to claim 1, characterized in that: The bracket is provided with two first mounting parts and two second mounting parts, the torsion spring includes a movable frame, two spiral bodies and two pins, the movable frame is abutted against the motor, the two spiral bodies are respectively connected to the opposite sides of the movable frame, and are respectively sleeved on the two first mounting parts, the two pins are respectively connected to one end of the two spiral bodies away from the movable frame, and one end of the two pins away from the spiral bodies is respectively fixed on the two second mounting parts.

8. The synchronous belt mechanism according to claim 7, characterized in that: The bracket is provided with a mounting hole, and the mounting hole has two mounting walls arranged opposite to each other, and each of the mounting walls is provided with a first mounting portion and a second mounting portion.

9. The synchronous belt mechanism according to claim 8, characterized in that: One end of the second mounting portion is connected to the mounting wall, and the other end of the second mounting portion is provided with a stopper; the end of the pin away from the spiral body is provided with a hanging ear, the hanging ear is sleeved on the second mounting portion and clamped between the stopper and the mounting wall.

10. A camera device, characterized in that: It comprises a shell, a lens assembly and a synchronous belt mechanism as described in any one of claims 1 to 9, wherein the lens assembly is connected to the shell, the synchronous belt mechanism is arranged in the shell, and the driven wheel is connected to the lens assembly to drive the lens assembly to rotate.

Images