TWI879012B - Monitor drive mechanism for synchronously driving two optoelectronic devices - Google Patents

Abstract

A transmission mechanism for synchronously driving two photoelectric devices in a monitoring system comprising: a fixed mount for securing to a structure; a base rotatably mounted on the fixed mount and equipped with a bracket; a longitudinal shaft connecting the fixed mount and the base; a transverse shaft rotatably mounted on the bracket, with the first and second photoelectric devices positioned at its two ends respectively; a first motor fixedly mounted on the bracket, driving the longitudinal shaft rotation to synchronously control the first and second photoelectric devices to rotate horizontally; a second motor fixedly mounted on the base, driving the transverse shaft rotation to synchronously control the first and second photoelectric devices to rotate vertically.

Description

Monitor drive mechanism for synchronously driving two optoelectronic devices

The present invention relates to a monitor drive mechanism suitable for industrial environment for synchronously driving two optoelectronic devices, and in particular to a monitor drive mechanism which can make the overall volume of the monitor more compact and simple compared with similar products known in the art, and can drive two optoelectronic devices to rotate synchronously in a first direction and/or a second direction.

With the progress of society and the development of technology, surveillance cameras have become a part of daily life and are widely installed in various places such as traffic intersections, homes, businesses, offices and factories to monitor the environment and prevent potential accidents.

Since most of the surveillance cameras are installed outdoors, they are exposed to the sun, rain, wind and rain for a long time, which can easily cause the surveillance cameras to corrode and break. In addition, outdoor sand, dust or other dirt can easily accumulate in the gaps or lenses, thus affecting the use of the surveillance cameras. For high-grade industrial surveillance cameras used in harsh environments, they must also have explosion-proof performance to prevent the surveillance cameras from being damaged in the event of a strong explosion in the industrial environment, thereby protecting the images captured by the surveillance cameras. Therefore, high-level industrial monitor transmission mechanisms that synchronously drive two optoelectronic devices generally place the monitor in a protective casing to prevent the monitor from being directly exposed to sunlight and rain, human damage, or strong explosions in the environment.

In order to monitor the surrounding environment as widely as possible, most surveillance cameras have the function of rotating horizontally and vertically. In order to obtain clear images at night or in poor lighting conditions, some surveillance cameras are equipped with cameras and infrared thermal imagers (collectively referred to as "photoelectric equipment"). For example, a conventional monitor equipped with two optoelectronic devices such as a camera and an infrared thermal imager is configured to place the two optoelectronic devices on opposite sides of the housing of the monitor, and to drive the housing to rotate horizontally and the two optoelectronic devices to rotate vertically by a transmission mechanism disposed inside the housing, as shown in previous patent documents such as Republic of China Patent No. TW M643834 and China Patent No. CN 213817900 U. However, the conventional monitor transmission mechanism is not compact and simple enough, and the overall mechanism is too large and complicated.

The main object of the present invention is to provide a monitor drive mechanism that controls two optoelectronic devices to rotate synchronously by a simple and compact drive mechanism.

The monitor transmission mechanism for synchronously driving two optoelectronic devices provided by the present invention may include, in a first embodiment: a fixed seat for fixing on a structure; a base rotatably arranged on the fixed seat, on which a bracket is arranged; a longitudinal axis connecting the fixed seat and the base so that the base can rotate relative to the fixed seat, and the longitudinal axis is fixedly provided with a first passive wheel; a transverse axis rotatably arranged on the bracket, and the transverse axis is fixedly provided with a second passive wheel, and the opposite ends of the transverse axis are respectively connected to the first optoelectronic device and the second optoelectronic device; a first motor fixedly arranged on the bracket, and the first motor is provided with a first active wheel, and the first active wheel and the first passive wheel is connected with a first belt; a second motor is fixedly arranged on the base, the second motor is provided with a second active wheel, and the second active wheel and the second passive wheel are connected with a second belt; wherein, the first motor drives the first passive wheel through the first active wheel and the first belt to rotate the base relative to the fixed base, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the horizontal direction, and wherein, the second motor drives the second passive wheel through the second active wheel and the second belt to rotate the transverse axis, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the vertical direction.

The monitor transmission mechanism for synchronously driving two optoelectronic devices provided by the present invention may include, in a second embodiment: a fixed seat, which is fixed to a structure; a base, which is rotatably arranged on the fixed seat, and a bracket is arranged on the base; a longitudinal axis, which connects the fixed seat and the base, so that the base can rotate relative to the fixed seat, and the longitudinal axis is fixedly provided with a first passive wheel; a transverse axis, which is rotatably arranged on the bracket, and the transverse axis is fixedly provided with a second passive wheel, and the opposite ends of the transverse axis are respectively connected to the first optoelectronic device and the second optoelectronic device; a first motor, which is fixedly arranged on the bracket, and the first motor is provided with a first active wheel, and the first active wheel and the first passive wheel are connected by a first belt; a second motor, which is fixedly arranged on the base, The second motor is provided with a second active wheel; and an idler gear set, which is arranged on the base, the idler gear set includes a first idler gear and a second idler gear, the first idler gear engages the second active wheel, and the second idler gear and the second passive wheel are connected by a second belt; wherein, the first motor drives the first passive wheel through the first active wheel and the first belt, so that the base rotates relative to the fixed seat, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the horizontal direction, and wherein, the second motor drives the idler gear set through the second active wheel, and then drives the second passive wheel through the second belt to rotate the transverse axis, so as to synchronously control the first optoelectronic device and the second optoelectronic device to rotate in the vertical direction.

In the first embodiment and the second embodiment of the present invention, a housing is further included. The housing is disposed on the base to cover the transmission mechanism, and two ends of the transverse axis pass through opposite sides of the housing.

Preferably, in the first embodiment and the second embodiment of the present invention, the first driving wheel and the second driving wheel can both be timing belt pulleys, and the first belt and the second belt can both be timing belts. Accordingly, the transmission is more reliable.

In order to facilitate the understanding of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. The accompanying drawings show some embodiments of the present invention, but not all of them. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making progressive efforts are within the scope of protection of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art belonging to the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

The terms "first", "second", etc. described below are intended to distinguish components and are not intended to limit the order of configuration or installation of the components.

FIG1 is a three-dimensional external view of the present invention; as shown in FIG1 , the monitor of the present invention includes a fixing base 10 and a base 12 disposed on the fixing base 10, a housing 40 is disposed on the base 12, and a first photoelectric device 24 and a second photoelectric device 26 are disposed on opposite sides of the housing 40. The fixing base 10 is used to be fixed to a ceiling, a bracket, a roof, a beam or any appropriate structure. The base 12 can rotate relative to the fixing base 10, so that the first photoelectric device 24 and the second photoelectric device 26 rotate with the housing 40, so that the monitor can monitor a wide range of surrounding environment.

"First Embodiment"

FIG2 shows the structure of the first embodiment of the transmission mechanism of the monitor device of the present invention shown in FIG1 after the housing is removed; FIG3 is a three-dimensional diagram showing the transmission mechanism in more detail after the optoelectronic device and the bracket shown in FIG2 are removed; FIG4 is a three-dimensional diagram showing the transmission mechanism of the first embodiment of the present invention from a second angle; FIG5 is a three-dimensional diagram showing the transmission mechanism of the first embodiment of the present invention from a third angle; and FIG6 is a plan view showing the transmission mechanism of the first embodiment of the present invention.

As shown in FIGS. 2 to 6 , the monitor transmission mechanism for synchronously driving two optoelectronic devices provided by the present invention includes a fixed seat 10 and a base 12, the base 12 is rotatably arranged on the fixed seat 10, and a bracket 14 is arranged on the base 12. The fixed seat 10 and the base 12 are connected by a longitudinal shaft 16, and a first passive wheel 18 is fixedly arranged on the longitudinal shaft 16. A transverse shaft 20 is rotatably arranged on the bracket 14 in cooperation with a bearing, and a second passive wheel 22 is fixedly arranged at an appropriate position of the transverse shaft 20, and the opposite ends of the transverse shaft 20 are respectively connected to a first optoelectronic device 24 and a second optoelectronic device 26. A first motor 28 is fixedly mounted on the bracket 14. A first active wheel 30 is mounted on the driving shaft of the first motor 28. The first active wheel 30 and the first passive wheel 18 are connected by a first belt 32. A second motor 34 is fixedly mounted on the base 12. A second active wheel 36 is mounted on the driving shaft of the second motor 34. The second active wheel 36 and the second passive wheel 22 are connected by a second belt 38. A housing 40 is mounted on the base 12 as an outer housing of the monitor device, and two ends of the transverse shaft 20 pass through holes disposed on opposite sides of the housing 40.

Specifically, the fixing base 10 and the base 12 may be circular or rectangular, but the shape is not limited and may be designed in any shape according to actual needs. In the embodiment of the present invention, a circular fixing base 10 is shown with a substantially rectangular base 12; the fixing base 10 and the base 12 are connected in series via a longitudinal axis 16 and cooperate with bearings so that the base 12 can rotate relative to the fixing base 10. In the embodiment of the present invention, based on the consideration of a simple appearance, the housing 40 is formed into a shape corresponding to the outline of the base 12, and there is a containing space inside the housing 40 to accommodate the aforementioned various elements and transmission mechanisms except the fixing base 10, the base 12, the first optoelectronic device 24 and the second optoelectronic device 26.

In an embodiment of the present invention, the first photoelectric device 24 may be a camera, which may be a wide-angle camera, a telephoto camera or other cameras with special functions according to actual needs. The second photoelectric device 26 may be an infrared thermal imager or other photoelectric devices, which may be used in conjunction with the first photoelectric device 24 to provide a better monitoring effect.

The transmission mechanism of the present invention disposed in the accommodation space of the housing 40 is used to drive the base 12 to rotate horizontally relative to the fixing base 10, and to drive the first optoelectronic device 24 and the second optoelectronic device 26 to rotate in the vertical direction (i.e., the pitch and elevation directions) at the same time. A bracket 14 is disposed on the base 12, and the bracket 14 can be composed of a plurality of metal plates locked on the base 12. One end of the longitudinal axis 16 is fixed to the fixing base 10, and the other end vertically passes through the base 12, and a first passive wheel 18 is disposed at the end of the longitudinal axis 16 passing through the base 12. The bracket 14 is also provided with a transverse shaft 20 and a first motor 28, wherein the driving shaft of the first motor 28 is provided with a first active wheel 30, and the first active wheel 30 is connected to the first passive wheel 18 by a first belt 32, that is, the first motor 28 can drive the longitudinal shaft 16 to rotate through the first active wheel 30, the first belt 32 and the first passive wheel 18. A second passive wheel 22 is provided at an appropriate position of the transverse shaft 20, and when the housing 40 is covered on the base 12, the two ends of the transverse shaft 20 are respectively passed through the holes preset on the opposite sides of the housing 40. The base 12 is also provided with a second motor 34, and a second active wheel 36 is provided on the driving shaft of the second motor 34. The second active wheel 36 and the second passive wheel 22 are connected by a second belt 38, that is, the second motor 34 can drive the transverse shaft 20 to rotate through the second active wheel 36, the second belt 38 and the second passive wheel 22. In a preferred embodiment of the present invention, the first active wheel 30 and the second active wheel 36 can both be timing belt pulleys, and the first belt 32 and the second belt 38 can both be timing belts, so that the first active wheel 30 drives the first passive wheel 18 through the first belt 32 and the second active wheel 36 drives the second passive wheel 22 through the second belt 38 more accurately and surely.

The transmission mechanism of the first embodiment can control the angles of the first photoelectric device 24 and the second photoelectric device 26 to rotate synchronously in the horizontal direction and/or the vertical direction (pitch and elevation direction). The operation method is as follows: when the first motor 28 is actuated, the first active wheel 30 drives the first passive wheel 18 to rotate through the first belt 32. At this time, since the fixing base 10 is fixed on a structure such as a building, the first passive wheel 18 will drive the base 12 to rotate, so that the housing 40 disposed on the base 12 and the first photoelectric device 24 and the second photoelectric device 26 disposed on the bracket 14 rotate synchronously in the horizontal direction, so that the monitoring angle in the horizontal direction can be adjusted. Furthermore, when the second motor 34 is activated, the second driven wheel 36 drives the second passive wheel 22 to rotate through the second belt 38. At this time, the first photoelectric device 24 and the second photoelectric device 26 arranged at both ends of the transverse axis 20 rotate synchronously with the transverse axis 20 in the vertical direction (pitch and elevation directions) to adjust the monitoring angle in the pitch and elevation directions.

"Second Embodiment"

The second embodiment of the present invention is a variation of the structure of the first embodiment. FIG. 7 is a perspective view showing the transmission mechanism of the second embodiment of the present invention after the optoelectronic device and the bracket of the monitor device shown in FIG. 1 are removed; FIG. 8 is a perspective view showing the transmission mechanism of the second embodiment of the present invention from a second angle; and FIG. 9 is a perspective view showing the transmission mechanism of the second embodiment of the present invention from a third angle.

As shown in FIGS. 7 to 9 , the monitor transmission mechanism for synchronously driving two optoelectronic devices provided by the present invention, in a second embodiment, comprises a fixing seat 10 and a base 12, the base 12 being rotatably mounted on the fixing seat 10, and a bracket 14 being mounted on the base 12. The fixing seat 10 and the base 12 are connected by a longitudinal shaft 16, and a first passive wheel 18 is fixedly mounted on the longitudinal shaft 16. A transverse shaft 20 is rotatably mounted on the bracket 14 in cooperation with a bearing, and a second passive wheel 22 is fixedly mounted at an appropriate position of the transverse shaft 20, and opposite ends of the transverse shaft 20 are respectively connected to a first optoelectronic device 24 and a second optoelectronic device 26 (as shown in FIG. 1 ). A first motor 28 is also fixedly disposed on the bracket 14 . A driving shaft of the first motor 28 is provided with a first active wheel 30 . The first active wheel 30 and the first passive wheel 18 are connected by a first belt 32 .

A second motor 34 and an idler gear set 42 are also fixedly disposed on the base 12. The driving shaft of the second motor 34 is provided with a second active wheel 36. The idler gear set 42 includes a gear seat 423 and a first idler gear 421 and a second idler gear 422 coaxially disposed on the gear seat 423, wherein the first idler gear 421 engages with the second active wheel 36, and the second idler gear 422 and the second driven wheel 22 are connected by a second belt 38. In a preferred embodiment of the present invention, the first driving wheel 30 and the second idler gear 422 can both be timing pulleys, and the first belt 32 and the second belt 38 can both be timing belts, thereby making it more precise and accurate for the first driving wheel 30 to drive the first passive wheel 18 through the first belt 32 and the second idler gear 422 to drive the second passive wheel 22 through the second belt 38.

The transmission mechanism of the second embodiment can control the angles of the first photoelectric device 24 and the second photoelectric device 26 to rotate synchronously in the horizontal direction and/or the vertical direction (pitch and elevation direction). The operation method is as follows: when the first motor 28 is actuated, the first active wheel 30 drives the first passive wheel 18 to rotate through the first belt 32. At this time, since the fixing base 10 is fixed on a structure such as a building, the first passive wheel 18 will drive the base 12 to rotate, so that the housing 40 disposed on the base 12 and the first photoelectric device 24 and the second photoelectric device 26 disposed on the bracket 14 rotate synchronously in the horizontal direction, so that the monitoring angle in the horizontal direction can be adjusted. Furthermore, when the second motor 34 is activated, the second active wheel 36 drives the first idler gear 421 and the second idler gear 422 to rotate simultaneously, and the second idler gear 422 drives the second passive wheel 22 to rotate through the second belt 38. At this time, the first photoelectric device 24 and the second photoelectric device 26 arranged at both ends of the transverse shaft 20 rotate synchronously with the transverse shaft 20 in the vertical direction (pitch and elevation directions) to adjust the monitoring angle in the pitch and elevation directions.

In summary, the present invention integrates the transmission mechanism into the base 12 and accommodates it in the housing 40, which not only reduces the overall volume and simplifies the structure to make the whole present a simple and compact effect, but also can simultaneously control the rotation of two optoelectronic devices in the horizontal direction and the vertical direction to obtain a better and more efficient monitoring effect.

The above is only used to explain the preferred embodiments of the present invention, and is not intended to limit the present invention in any form. Therefore, any modifications or changes made to the present invention under the same spirit of the invention should still be included in the scope of protection of the present invention.

10: Fixed seat 12: Base 14: Bracket 16: Longitudinal axis 18: First passive wheel 20: Transverse axis 22: Second passive wheel 24: First optoelectronic device 26: Second optoelectronic device 28: First motor 30: First active wheel 32: First belt 34: Second motor 36: Second active wheel 38: Second belt 40: Housing 42: Idle gear set 421: First idle gear 422: Second idle gear 423: Gear seat

FIG1 is a three-dimensional external view of the present invention; FIG2 is a three-dimensional view showing the structure of the first embodiment after the housing shown in FIG1 is removed; FIG3 is a three-dimensional view showing the transmission mechanism of the first embodiment after the optoelectronic device and the bracket shown in FIG2 are removed; FIG4 is a three-dimensional view showing the transmission mechanism of the first embodiment of the present invention from a second angle; FIG5 is a three-dimensional view showing the transmission mechanism of the first embodiment of the present invention from a third angle; FIG6 is a plan view showing the transmission mechanism of the first embodiment of the present invention; FIG7 is a three-dimensional view showing the transmission mechanism of the second embodiment after the optoelectronic device and the bracket of the present invention are removed; FIG8 is a three-dimensional view showing the transmission mechanism of the second embodiment of the present invention from a second angle; and FIG9 is a three-dimensional view showing the transmission mechanism of the second embodiment of the present invention from a third angle.

10: Fixed seat

12: Base

18: First passive wheel

20: Transverse axis

22: Second passive wheel

28: First Motor

30: First driving wheel

32: First belt

36: Second driving wheel

38: Second belt

Claims (6)

A monitor transmission mechanism for synchronously driving two optoelectronic devices, comprising: a fixed seat for fixing on a structure; a base rotatably arranged on the fixed seat, and a bracket is arranged on the base; a longitudinal axis connecting the fixed seat and the base, so that the base can rotate relative to the fixed seat, and the longitudinal axis is fixedly provided with a first passive wheel; a transverse axis rotatably arranged on the bracket, the transverse axis is fixedly provided with a second passive wheel, and the opposite ends of the transverse axis are respectively connected to a first optoelectronic device and a second optoelectronic device; a first motor fixedly arranged on the bracket, the first motor is provided with a first active wheel, and the first active wheel and the first passive wheel are connected by a first belt; and A second motor is fixedly arranged on the base, the second motor is provided with a second active wheel, and the second active wheel and the second passive wheel are connected by a second belt; wherein the first motor drives the first passive wheel through the first active wheel and the first belt, so that the base rotates relative to the fixed seat, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the horizontal direction, and wherein the second motor drives the second passive wheel through the second active wheel and the second belt to rotate the transverse axis, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the vertical direction. The monitor drive mechanism for synchronously driving two optoelectronic devices as described in claim 1 also includes a housing, which is disposed on the base to cover the drive mechanism, and the two ends of the transverse axis pass through opposite sides of the housing. A monitor transmission mechanism for synchronously driving two optoelectronic devices as described in claim 1, wherein the first active wheel and the second active wheel are both timing pulleys, and the first belt and the second belt are both timing belts. A monitor transmission mechanism for synchronously driving two optoelectronic devices comprises: A fixed seat for fixing on a structure; A base rotatably arranged on the fixed seat, and a bracket is arranged on the base; A longitudinal shaft connecting the fixed seat and the base, so that the base can rotate relative to the fixed seat, and the longitudinal shaft is fixedly provided with a first passive wheel; A transverse shaft rotatably arranged on the bracket, the transverse shaft is fixedly provided with a second passive wheel, and the opposite ends of the transverse shaft are respectively connected to a first optoelectronic device and a second optoelectronic device; A first motor is fixedly arranged on the bracket, the first motor is provided with a first active wheel, and the first active wheel and the first passive wheel are connected by a first belt; A second motor is fixedly mounted on the base, and the second motor is provided with a second active wheel; and An idler gear set is mounted on the base, and the idler gear set includes a first idler gear and a second idler gear, the first idler gear engages the second active wheel, and the second idler gear and the second passive wheel are connected by a second belt; Wherein, the first motor drives the first passive wheel through the first active wheel and the first belt, so that the base rotates relative to the fixed base, thereby synchronously controlling the first optoelectronic device and the second optoelectronic device to rotate in the horizontal direction, and The second motor drives the idler gear set through the second active wheel, and then drives the second passive wheel through the second belt to rotate the transverse axis, so as to synchronously control the first optoelectronic device and the second optoelectronic device to rotate in the vertical direction. The monitor drive mechanism for synchronously driving two optoelectronic devices as described in claim 4 also includes a housing, which is disposed on the base to cover the drive mechanism, and the two ends of the transverse axis pass through opposite sides of the housing. A monitor transmission mechanism for synchronously driving two optoelectronic devices as described in claim 4, wherein the first driving wheel and the second idler gear are both timing belt pulleys, and the first belt and the second belt are both timing belts.