CN219796766U - Monitoring camera - Google Patents

Abstract

The embodiment of the utility model discloses a monitoring camera which comprises a fixed bracket, a first rotary bracket assembled on the fixed bracket, a camera module connected with the first rotary bracket, and a first driving component for driving the first rotary bracket to rotate relative to the fixed bracket; the first driving assembly comprises a first driving piece, a first driving belt pulley, a first driven belt pulley and a first synchronous belt, wherein the first driving piece is fixed on the first rotary bracket, and the first driving belt pulley is connected with the first driving piece; the first driven belt wheel is rotationally connected to the first rotary bracket, the first synchronous belt is sleeved outside the first driving belt wheel and the first driven belt wheel, the first synchronous belt is meshed with the first driving belt wheel and the first driven belt wheel, and the first driven belt wheel is fixedly connected with the fixed bracket; the check rings are respectively fixedly arranged on the two opposite sides of the first driven belt wheel along the axial direction, and the first synchronous belt is arranged between the two check rings, so that the technical problem that the synchronous belt of the monitoring camera is easy to fall off from the belt wheel can be solved.

Description

Monitoring camera

Technical Field

The utility model relates to the technical field of monitoring equipment, in particular to a monitoring camera.

Background

With the gradual enhancement of safety awareness of people, the monitoring camera is widely applied to places such as schools, office buildings, residential buildings, markets and the like. In order to adjust the monitoring angle, a rotating mechanism is added on the monitoring camera, and the monitoring angle of the camera is adjusted through the rotating mechanism. The rotating mechanism generally comprises a synchronous belt and a belt wheel, and in the research and practice process of the prior art, the inventor of the utility model finds that the synchronous belt is easy to fall off from the belt wheel, so that the camera cannot rotate normally.

Disclosure of Invention

The utility model provides a monitoring camera, which can solve the technical problem that a synchronous belt of the monitoring camera is easy to fall off from a belt wheel.

The utility model provides a monitoring camera, comprising:

a fixed bracket;

the first rotary support is assembled on the fixed support and provided with a containing groove, and the first rotary support can rotate relative to the fixed support;

the camera module is connected with the first rotary bracket; and

the first driving component is arranged in the accommodating groove and is used for driving the first rotating bracket to rotate relative to the fixed bracket; the first driving assembly comprises a first driving piece, a first driving belt pulley, a first driven belt pulley and a first synchronous belt, wherein the first driving piece is fixed on the first rotating bracket, the first driving belt pulley is connected with the first driving piece, and the first driving piece is used for driving the first driving belt pulley to rotate; the first driven belt wheel is rotationally connected to the first rotating bracket, the first synchronous belt is sleeved outside the first driving belt wheel and the first driven belt wheel, the first synchronous belt is in meshed connection with the first driving belt wheel and the first driven belt wheel, and the first driven belt wheel is fixedly connected with the fixed bracket; the two opposite sides of the first driven belt wheel along the axial direction are respectively fixedly provided with a check ring, and the first synchronous belt is arranged between the two check rings.

Alternatively, in some embodiments of the present utility model, the retainer ring includes a first retainer ring integrally connected with the first driven pulley and a second retainer ring assembled to one side of the first driven pulley;

the first check ring is located on one side, away from the bottom surface of the accommodating groove, of the first driven pulley, and the second check ring is located on one side, close to the bottom surface of the accommodating groove, of the first driven pulley.

Optionally, in some embodiments of the present utility model, the second retainer ring is integrally connected with a shielding portion, and a first sensor is disposed on a bottom surface of the accommodating groove corresponding to the shielding portion, and the first sensor is used for sensing the shielding portion.

Optionally, in some embodiments of the present utility model, the monitoring camera further includes:

the rotary table is assembled between the first rotary support and the fixed support, and the fixed support is fixedly connected with the first driven belt wheel through the rotary table.

Optionally, in some embodiments of the present utility model, the rotary disc is provided with a first rotating shaft portion, the first rotating bracket is provided with a first through hole corresponding to the first rotating shaft portion, and the first rotating shaft portion is fixedly connected to the first driven pulley after passing through the first through hole.

Optionally, in some embodiments of the present utility model, a first annular flange is disposed on the first driven pulley corresponding to the first rotating shaft portion, the first annular flange is sleeved outside the first rotating shaft portion, and the second retainer ring is sleeved outside the first annular flange.

Optionally, in some embodiments of the present utility model, the monitoring camera further includes:

the second rotating bracket is fixed on the first rotating bracket, the camera shooting module is connected with the second rotating bracket in a rotating way, and the rotating shaft of the camera shooting module relative to the second rotating bracket is perpendicular to the rotating shaft of the first rotating bracket relative to the fixed bracket;

the second driving assembly is assembled on the second rotating bracket and used for driving the camera shooting module to rotate relative to the second rotating bracket.

Optionally, in some embodiments of the present utility model, the second driving assembly includes a second driving member, a second driving pulley, a second driven pulley, and a second synchronous belt, the second driving member is fixed to the second rotating bracket, the second driving pulley is connected to the second driving member, and the second driving member is used for driving the second driving pulley to rotate; the second driven belt wheel is rotationally connected to the second rotating support, the second synchronous belt is sleeved outside the second driving belt wheel and the second driven belt wheel, the second synchronous belt is connected to the second driving belt wheel and the second driven belt wheel in a meshed mode, and the second driven belt wheel is fixedly connected with the camera module.

Optionally, in some embodiments of the present utility model, the second rotating bracket includes a first supporting arm and a second supporting arm, where the first supporting arm and the second supporting arm are disposed opposite to each other, and the camera module is rotatably disposed between the first supporting arm and the second supporting arm;

the first support arm is provided with a first sinking groove and a channel, the first sinking groove is arranged on one side of the first support arm, which is away from the second support arm, and the channel is communicated with the first sinking groove; the second driven belt wheel is arranged in the first sinking groove, the second driving piece and the second driving belt wheel are arranged below the second rotating support, and the second synchronous belt penetrates through the channel from the lower side of the second rotating support and then extends into the first sinking groove.

Optionally, in some embodiments of the present utility model, the second driven pulley is provided with a second rotating shaft portion, a second through hole is provided on a bottom surface of the first sink corresponding to the second rotating shaft portion, and the second rotating shaft portion passes through the second through hole and is fixedly connected to the camera module;

the second support arm is provided with a third through hole, the monitoring camera further comprises a driven rotating shaft, and the driven rotating shaft penetrates through the third through hole and then is fixedly connected with the camera module.

According to the embodiment of the utility model, the monitoring camera is adopted, the first synchronous belt is sleeved outside the first driving belt pulley and the first driven belt pulley, the check rings are respectively and fixedly arranged on the two opposite sides of the first driven belt pulley along the axial direction, and the first synchronous belt is arranged between the two check rings, so that the situation that the first synchronous belt falls off from the first driven belt pulley can be prevented, and the technical problem that the synchronous belt of the monitoring camera falls off from the belt pulley easily is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a monitoring camera according to an embodiment of the present utility model;

fig. 2 is an exploded schematic view of a monitoring camera according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a mating structure of a fixed bracket, a first rotating bracket and a first driving assembly according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a monitoring camera according to an embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of the area A in FIG. 4;

fig. 6 is a schematic diagram of a matching structure of a camera module, a second rotating bracket and a second driving assembly according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a cross-sectional structure of a monitoring camera according to an embodiment of the present utility model;

fig. 8 is an enlarged schematic view of the area B in fig. 7.

Reference numerals illustrate:

100-mounting seat, 200-fixed bracket, 210-turntable, 211-first rotating shaft, 300-first rotating bracket, 310-accommodating groove, 311-first through hole, 400-second rotating bracket, 410-first supporting arm, 411-first sinking groove, 412-second through hole, 413-second annular flange, 414-channel, 420-second supporting arm, 421-second sinking groove, 422-third through hole, 430-driven rotating shaft, 440-first side protecting shell, 450-second side protecting shell, 500-camera module, 600-first driving component, 610-first driving piece, 620-first driving pulley, 630-first driven pulley, 631-retaining ring, 632-first retaining ring, 633-second retaining ring, 6331-shielding part, 634-first annular flange, 640-first synchronous belt, 650-first sensor, 700-second driving component, 710-second driving piece, 720-second driving pulley, 730-second driven pulley, 731-second rotating shaft, 740-second synchronous belt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. The connection relationships shown in the drawings are for convenience of clarity of description only and are not limiting on the manner of connection.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component, or intervening components may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should also be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and limited; either mechanically or electrically, or by communication between two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be further noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a surveillance camera, including a fixed bracket 200, a first rotating bracket 300, a camera module 500 and a first driving assembly 600, wherein the camera module 500 is connected to the first rotating bracket 300, the first rotating bracket 300 is assembled on the fixed bracket 200, the first rotating bracket 300 can rotate relative to the fixed bracket 200, and the first driving assembly 600 is used for driving the first rotating bracket 300 to rotate relative to the fixed bracket 200. With this structure, the monitoring angle of the camera module 500 can be adjusted by driving the first rotating bracket 300 to rotate relative to the fixed bracket 200 by using the first driving assembly 600. In this embodiment, the monitoring camera further includes a mounting base 100, and the fixing bracket 200 is assembled on the mounting base 100, where the mounting base 100 is used for being mounted on a mounting surface such as a wall surface, a ceiling, etc.

Specifically, as shown in fig. 3 to 5, the first rotating bracket 300 is provided with a receiving groove 310, and the first driving assembly 600 is disposed in the receiving groove 310, so that the first driving assembly 600 is hidden inside the first rotating bracket 300, and can protect the first driving assembly 600.

Wherein the first drive assembly 600 includes a first driver 610, a first driving pulley 620, a first driven pulley 630, and a first timing belt 640.

The first driving member 610 is fixed to the first rotating bracket 300, the first driving pulley 620 is connected to the first driving member 610, and the first driving member 610 is used for driving the first driving pulley 620 to rotate. In this embodiment, the first driving member 610 may be a first motor, and the first driving pulley 620 is mounted on an output shaft of the first motor, so that the first driving pulley 620 can be controlled to rotate forward or backward by the first motor.

The first driven pulley 630 is rotatably connected to the first rotating bracket 300, the first synchronous belt 640 is sleeved and tensioned outside the first driving pulley 620 and the first driven pulley 630, and the first synchronous belt 640 is engaged with and connected to the first driving pulley 620 and the first driven pulley 630, when the first motor controls the first driving pulley 620 to rotate, the first synchronous belt 640 drives the first driven pulley 630 to rotate relative to the first rotating bracket 300.

The first driven pulley 630 is fixedly connected with the fixed bracket 200, that is, the first driven pulley 630 and the fixed bracket 200 can rotate synchronously relative to the first rotating bracket 300, and when the fixed bracket 200 is installed on a mounting surface such as a wall surface, a ceiling and the like through the installation seat 100, the first motor can drive the first rotating bracket 300 to rotate relative to the fixed bracket 200, so that the monitoring angle of the camera module 500 is adjusted.

Specifically, as shown in fig. 3 and 5, the first driven pulley 630 is fixedly provided with a collar 631 at opposite sides in the axial direction, and the first synchronous belt 640 is provided between the two collars 631. With this structure, the first timing belt 640 is disposed between the two collars 631, so that the first timing belt 640 can be prevented from falling off the first driven pulley 630 in the axial direction, thereby improving the technical problem that the timing belt of the monitoring camera is easy to fall off the pulley.

Specifically, as shown in fig. 3 and 5, the check ring 631 includes a first check ring 632 and a second check ring 633, the first check ring 632 is integrally connected with the first driven pulley 630, and the second check ring 633 is fitted to one side of the first driven pulley 630. With this structure, the first check ring 632 and the first driven pulley 630 are integrally connected, so that the assembly process of the first driving assembly 600 can be simplified, and the assembly efficiency of the monitoring camera can be effectively improved.

In the embodiment of the present utility model, as shown in fig. 3 and 5, the first retaining ring 632 is located on one side of the first driven pulley 630 facing away from the bottom surface of the accommodating groove 310, and the first retaining ring 632 may play a role in limiting, so as to prevent the first synchronous belt 640 from falling off from the first driving pulley 620 toward one side facing away from the bottom surface of the accommodating groove 310. The second check ring 633 is located at a side of the first driven pulley 630 near the bottom surface of the receiving groove 310, and the second check ring 633 may play a limiting role to prevent the first synchronous belt 640 from falling off from the first driving pulley 620 toward a side near the bottom surface of the receiving groove 310. With the above arrangement, the first timing belt 640 can be prevented from falling off the first driven pulley 630 in the axial direction, thereby improving the technical problem that the timing belt of the monitoring camera is easy to fall off the pulley.

Specifically, as shown in fig. 3 and 5, the second retaining ring 633 is integrally connected with a shielding portion 6331, and specifically, the second retaining ring 633 extends radially outward with the shielding portion 6331. The bottom surface of the accommodating groove 310 is provided with a first sensor 650 corresponding to the shielding part 6331, and the first sensor 650 is used for sensing the shielding part 6331. With this structure, by sensing the position of the blocking portion 6331 using the first sensor 650, the angle at which the first rotating bracket 300 rotates with respect to the fixed bracket 200 can be monitored.

Alternatively, the first sensor 650 may be a first groove-type photoelectric sensor, where the first groove-type photoelectric sensor includes a light emitter and a receiver, the light emitter and the light receiver are disposed opposite to each other, and a groove for an object to be detected to enter is formed between the light emitter and the light receiver. When an object to be detected enters the groove of the groove-type photoelectric sensor, the object to be detected can shield light rays emitted by the light emitter, so that the light receiver cannot receive the light rays emitted by the light emitter, and the position of the object to be detected can be detected. In this embodiment, the object to be detected is a shielding portion 6331.

In the monitoring camera according to the embodiment of the utility model, when the first rotating bracket 300 rotates in the clockwise or counterclockwise direction relative to the fixed bracket 200 until the shielding portion 6331 enters the groove of the first groove-type photoelectric sensor, the first rotating bracket 300 rotates to a limit angle relative to the fixed bracket 200, so that the range of the angle in which the first rotating bracket 300 rotates relative to the fixed bracket 200 can be limited.

Specifically, as shown in fig. 3 and 5, the monitoring camera further includes a turntable 210, the turntable 210 is assembled between the first rotary bracket 300 and the fixed bracket 200, and the fixed bracket 200 is fixedly connected to the first driven pulley 630 through the turntable 210, so that the fixed bracket 200 and the first driven pulley 630 can synchronously rotate with respect to the first rotary bracket 300.

Specifically, as shown in fig. 3 and 5, the turntable 210 is provided with a first rotating shaft portion 211, the first rotating bracket 300 is provided with a first through hole 311 corresponding to the first rotating shaft portion 211, and the first rotating shaft portion 211 is fixedly connected to the first driven pulley 630 after passing through the first through hole 311.

Specifically, as shown in fig. 5, the first driven pulley 630 is provided with a first annular flange 634 corresponding to the first rotating shaft portion 211, the first annular flange 634 is sleeved outside the first rotating shaft portion 211, and the second retaining ring 633 is sleeved outside the first annular flange 634. With this structure, when assembling, the first rotating shaft portion 211 of the turntable 210 is inserted into the first annular flange 634 after passing through the first through hole 311, the first annular flange 634 can guide the first rotating shaft portion 211 to align with the first driven pulley 630, and then the first rotating shaft portion 211 and the first driven pulley 630 are fixedly connected together by screws.

Specifically, as shown in fig. 2 and 6, the monitoring camera further includes a second rotary bracket 400 and a second driving assembly 700. The second rotating bracket 400 is fixed on the first rotating bracket 300, and the camera module 500 is disposed on the second rotating bracket 400, so that the second rotating bracket 400 can synchronously rotate with the first rotating bracket 300 relative to the fixed bracket 200, so as to adjust the horizontal monitoring angle of the camera module 500. The camera module 500 is rotatably connected to the second rotating bracket 400, and a rotation axis of the camera module 500 rotating relative to the second rotating bracket 400 is perpendicular to a rotation axis of the first rotating bracket 300 rotating relative to the fixed bracket 200, so that the tilt monitoring angle of the camera module 500 can be adjusted by rotating the second rotating bracket 400 relative to the first rotating bracket 300.

The monitoring camera provided by the embodiment of the utility model has the camera module 500 with two degrees of freedom, the monitoring angle of the camera module 500 can be adjusted according to requirements, the use effect is good, and the practicability is strong.

Specifically, as shown in fig. 2 and 6, the monitoring camera further includes a second driving assembly 700. The second driving assembly 700 is assembled on the second rotating bracket 400, and the second driving assembly 700 is used for driving the camera module 500 to rotate relative to the second rotating bracket 400. With this structure, the tilt monitoring angle of the camera module 500 can be adjusted by driving the second rotating bracket 400 to rotate relative to the first rotating bracket 300 by using the second driving assembly 700.

Specifically, as shown in fig. 6 to 8, the second driving assembly 700 includes a second driver 710, a second driving pulley 720, a second driven pulley 730, and a second timing belt 740.

The second driving member 710 is fixed to the second rotating bracket 400, the second driving pulley 720 is connected to the second driving member 710, and the second driving member 710 is used for driving the second driving pulley 720 to rotate. In this embodiment, the second driving member 710 may be a second motor, and the second driving pulley 720 is mounted on an output shaft of the second motor, so that the second driving pulley 720 can be controlled to rotate forward or backward by the second motor.

The second driven pulley 730 is rotatably connected to the second rotating bracket 400, the second synchronous belt 740 is sleeved and tensioned outside the second driving pulley 720 and the second driven pulley 730, and the second synchronous belt 740 is engaged and connected to the second driving pulley 720 and the second driven pulley 730, when the second motor controls the second driving pulley 720 to rotate, the second synchronous belt 740 drives the second driven pulley 730 to rotate relative to the second rotating bracket 400.

The second driven pulley 730 is fixedly connected with the camera module 500, that is, the second driven pulley 730 and the camera module 500 can synchronously rotate relative to the second rotary support 400, and the second motor can drive the camera module 500 to rotate relative to the second rotary support 400, so that the pitching monitoring angle of the camera module 500 is adjusted.

Specifically, as shown in fig. 6 to 8, the second rotary bracket 400 includes a first support arm 410 and a second support arm 420, the first support arm 410 and the second support arm 420 are disposed opposite to each other, and the camera module 500 is rotatably disposed between the first support arm 410 and the second support arm 420. The first support arm 410 is provided with a first sink 411 and a channel 414, the first sink 411 is disposed on a side of the first support arm 410 facing away from the second support arm 420, and the channel 414 is in communication with the first sink 411. The second driven pulley 730 is rotatably disposed in the first sink 411, the second driving member 710 and the second driving pulley 720 are disposed below the second rotating bracket 400, and the second timing belt 740 extends from below the second rotating bracket 400 into the first sink 411 after passing through the channel 414, so that the second timing belt 740 is sleeved and tensioned outside the second driving pulley 720 and the second driven pulley 730.

Specifically, as shown in fig. 6 to 8, the second driven pulley 730 is provided with a second rotating shaft portion 731, the bottom surface of the first countersink 411 is provided with a second through hole 412 corresponding to the second rotating shaft portion 731, and the second rotating shaft portion 731 passes through the second through hole 412 and is fixedly connected to the image capturing module 500. The second support arm 420 is provided with a third through hole 422, and the monitoring camera further comprises a driven rotating shaft 430, wherein the driven rotating shaft 430 passes through the third through hole 422 and is fixedly connected to the camera module 500.

Specifically, as shown in fig. 6, the second rotating bracket 400 further includes a first side protective case 440 and a second side protective case 450. The first side protection shell 440 is assembled on one side of the first support arm 410, which is away from the second support arm 420, and the first side protection shell 440 covers the opening of the first sinking slot 411, so as to protect the parts in the first sinking slot 411. The second support arm 420 is equipped with the heavy groove 421 of second side that deviates from first support arm 410, and the bottom surface in heavy groove 421 of second is located to the third through-hole 422, and driven pivot 430 can rotationally locate in heavy groove 421 of second, and second side protective housing 450 assembles in the one side that deviates from first support arm 410 of second support arm 420, and the opening part in heavy groove 421 of second is located to second side protective housing 450 lid, can play the guard action to the part in the heavy groove 421 of second.

Specifically, as shown in fig. 8, the first support arm 410 is provided with a second annular flange 413 corresponding to the second pivot portion 731, and the second annular flange 413 is sleeved outside the second pivot portion 731. With this structure, during assembly, the second shaft portion 731 of the second driven pulley 730 is inserted into the second through hole 412 after passing through the second annular flange 413, and the second annular flange 413 can guide the second shaft portion 731 to align with the second through hole 412, and then the second shaft portion 731 is fixedly connected to the camera module 500 by using screws.

In the description and claims of the present utility model, the words "comprise/comprising" and the words "have/include" and variations thereof are used to specify the presence of stated features, values, steps, or components, but do not preclude the presence or addition of one or more other features, values, steps, components, or groups thereof.

Some features of the utility model, which are, for clarity of illustration, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, some features of the utility model, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A monitoring camera, characterized by comprising:

a fixed bracket;

the first rotary support is assembled on the fixed support and provided with a containing groove, and the first rotary support can rotate relative to the fixed support;

the camera module is connected with the first rotary bracket; and

the first driving component is arranged in the accommodating groove and is used for driving the first rotating bracket to rotate relative to the fixed bracket; the first driving assembly comprises a first driving piece, a first driving belt pulley, a first driven belt pulley and a first synchronous belt, wherein the first driving piece is fixed on the first rotating bracket, the first driving belt pulley is connected with the first driving piece, and the first driving piece is used for driving the first driving belt pulley to rotate; the first driven belt wheel is rotationally connected to the first rotating bracket, the first synchronous belt is sleeved outside the first driving belt wheel and the first driven belt wheel, the first synchronous belt is in meshed connection with the first driving belt wheel and the first driven belt wheel, and the first driven belt wheel is fixedly connected with the fixed bracket; the two opposite sides of the first driven belt wheel along the axial direction are respectively fixedly provided with a check ring, and the first synchronous belt is arranged between the two check rings.

2. The monitoring camera according to claim 1, wherein the retainer ring includes a first retainer ring and a second retainer ring, the first retainer ring is integrally connected with the first driven pulley, and the second retainer ring is assembled on one side of the first driven pulley;

the first check ring is located on one side, away from the bottom surface of the accommodating groove, of the first driven pulley, and the second check ring is located on one side, close to the bottom surface of the accommodating groove, of the first driven pulley.

3. The monitoring camera according to claim 2, wherein the second retainer ring is integrally connected with a shielding part, and a first sensor is arranged on the bottom surface of the accommodating groove corresponding to the shielding part, and the first sensor is used for sensing the shielding part.

4. The monitoring camera of claim 2, further comprising:

the rotary table is assembled between the first rotary support and the fixed support, and the fixed support is fixedly connected with the first driven belt wheel through the rotary table.

5. The monitoring camera according to claim 4, wherein the turntable is provided with a first rotating shaft portion, the first rotating bracket is provided with a first through hole corresponding to the first rotating shaft portion, and the first rotating shaft portion is fixedly connected to the first driven pulley after passing through the first through hole.

6. The surveillance camera of claim 5 wherein said first driven pulley is provided with a first annular flange corresponding to said first shaft portion, said first annular flange being disposed over said first shaft portion, said second retainer ring being disposed over said first annular flange.

7. The monitoring camera according to any one of claims 1 to 6, further comprising:

the second rotating bracket is fixed on the first rotating bracket, the camera shooting module is connected with the second rotating bracket in a rotating way, and the rotating shaft of the camera shooting module relative to the second rotating bracket is perpendicular to the rotating shaft of the first rotating bracket relative to the fixed bracket;

the second driving assembly is assembled on the second rotating bracket and used for driving the camera shooting module to rotate relative to the second rotating bracket.

8. The surveillance camera of claim 7 wherein the second drive assembly includes a second drive member, a second drive pulley, a second driven pulley and a second timing belt, the second drive member being secured to the second rotating bracket, the second drive pulley being coupled to the second drive member, the second drive member being configured to drive the second drive pulley in rotation; the second driven belt wheel is rotationally connected to the second rotating support, the second synchronous belt is sleeved outside the second driving belt wheel and the second driven belt wheel, the second synchronous belt is connected to the second driving belt wheel and the second driven belt wheel in a meshed mode, and the second driven belt wheel is fixedly connected with the camera module.

9. The monitoring camera according to claim 8, wherein the second rotary bracket includes a first support arm and a second support arm, the first support arm and the second support arm are disposed opposite to each other, and the camera module is rotatably disposed between the first support arm and the second support arm;

the first support arm is provided with a first sinking groove and a channel, the first sinking groove is arranged on one side of the first support arm, which is away from the second support arm, and the channel is communicated with the first sinking groove; the second driven belt wheel is arranged in the first sinking groove, the second driving piece and the second driving belt wheel are arranged below the second rotating support, and the second synchronous belt penetrates through the channel from the lower side of the second rotating support and then extends into the first sinking groove.

10. The monitoring camera according to claim 9, wherein the second driven pulley is provided with a second rotating shaft portion, the bottom surface of the first sink is provided with a second through hole corresponding to the second rotating shaft portion, and the second rotating shaft portion is fixedly connected to the camera module after passing through the second through hole;

the second support arm is provided with a third through hole, the monitoring camera further comprises a driven rotating shaft, and the driven rotating shaft penetrates through the third through hole and then is fixedly connected with the camera module.