A monitoring device

Abstract

The present application belongs to the field of monitoring equipment, and an embodiment of the present application provides a monitoring device, which comprises a camera device; a first gear connected with the camera device to drive the camera device to rotate; a transmission block, one side of the transmission block being provided with a first rack structure capable of engaging with the first gear to make the first gear rotate; wherein the transmission block can be switched between a first state and a second state, in the first state, the first rack structure is engaged with the first gear, and in the second state, the first rack structure is separated from the first gear. By switching the transmission block between the first state and the second state, the transmission block can return to the initial position and engage with the first rack structure again to continuously drive the first gear to rotate in the same direction, achieving the rotation purpose while reducing the length design of the first rack structure, increasing the engagement stroke, and saving the occupied space of the monitoring holder.

Description

Technical Field

[0001] This invention belongs to the field of monitoring equipment, and particularly relates to a monitoring device. Background Technology

[0002] Monitoring devices utilize camera equipment to view and monitor scannable areas. Examples of such devices include video cameras and pan-tilt-zoom (PTZ) cameras.

[0003] The pan-tilt unit's horizontal and vertical rotations are driven by two different motors, resulting in a large space requirement and hindering the design of a lightweight and simplified pan-tilt unit. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a monitoring device to solve the technical problem of how to reduce the space occupied by the device.

[0005] To solve the above-mentioned technical problems, the technical solution of this invention is implemented as follows:

[0006] An embodiment of the present invention provides a monitoring device comprising: a carrier; a camera device mounted on the carrier; a first gear rotatably connected to the carrier and drivingly connected to the camera device to drive the camera device to rotate; and a transmission block movably connected to the carrier, wherein one side of the transmission block is provided with a first rack structure capable of meshing with the first gear to rotate the first gear; wherein the transmission block is capable of switching between a first state and a second state, wherein in the first state the first rack structure meshes with the first gear, and in the second state the first rack structure is disengaged from the first gear.

[0007] Furthermore, the monitoring device also includes a second gear, which is spaced apart from the first gear. The transmission block is disposed between the first gear and the second gear, and a second rack structure capable of meshing with the second gear is provided on the other side of the transmission block. In the second state, the second rack structure meshes with the second gear.

[0008] Furthermore, the monitoring device also includes a first hydraulic system, which is used to drive the transmission block to move along a first direction.

[0009] Furthermore, the monitoring device also includes a switching device that enables the transmission block to switch from the first state to the second state.

[0010] Furthermore, the monitoring device also includes a track and a sliding column disposed at the bottom of the transmission block. The track includes a first track, a second track spaced apart from the first track, and a connecting track connecting the first track and the second track. The first track is disposed between the first gear and the second track, and the second track is disposed between the first track and the second gear. The sliding column slides within the track. The switching device is disposed within at least a portion of the connecting track to cause the sliding column to switch along the first track to the second track, thereby causing the transmission block to switch from the first state to the second state.

[0011] Furthermore, the connecting track includes a first connecting track and a second connecting track, the first connecting track and the second connecting track respectively connecting the two ends of the first track and the second track; the switching device includes two reversing blocks, the two reversing blocks are respectively at least partially disposed in the first connecting track and the second connecting track, and the two reversing blocks are rotatable to drive the sliding column to slide in the first connecting track or the second connecting track.

[0012] Furthermore, there are two sliding columns, which are spaced apart at the bottom of the transmission block along a first direction.

[0013] Furthermore, the connecting track also includes a third connecting track, which is disposed between the first connecting track and the second connecting track. The distance between the third connecting track and the first connecting track along the first direction is less than the distance between the two sliding columns, and the distance between the third connecting track and the second connecting track along the first direction is less than the distance between the two sliding columns.

[0014] Furthermore, the switching device includes a second hydraulic system for driving the transmission block to move along a second direction. The first direction and the second direction form a preset angle.

[0015] Furthermore, the monitoring device also includes a third gear, which is connected to the camera device to drive the camera device to rotate; wherein the rotation center axis of the third gear is perpendicular to the rotation center axis of the first gear.

[0016] This application provides a monitoring device, including a camera; a carrier; a first gear rotatably connected to the carrier and connected to the camera to drive the camera to rotate; and a transmission block movably connected to the carrier, with a first rack structure on one side capable of meshing with the first gear to rotate the first gear. The transmission block can switch between a first state and a second state. In the first state, the first rack structure meshes with the first gear; in the second state, the first rack structure disengages from the first gear. In the first state, the first rack structure on the transmission block meshes with the first gear, enabling the transmission block to drive the first gear to rotate. In the second state, the first gear structure disengages from the first gear, preventing the transmission block from driving the first gear to rotate in the opposite direction during its return to the initial position. Switching between the first and second states allows the transmission block to return to its initial position and re-engage with the first rack structure to continuously drive the first gear to rotate in the same direction. This achieves unidirectional rotation while reducing the length of the first rack structure, increasing the meshing stroke, and saving space occupied by the monitoring pan-tilt unit. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of an installation position of the monitoring device provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of another installation position of the monitoring device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a monitoring device provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of another monitoring device provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of another monitoring device provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a transmission structure in a monitoring device provided in an embodiment of the present invention;

[0024] Figure 7This is a first-view schematic diagram of the structure of a first hydraulic system of the monitoring device provided in an embodiment of the present invention;

[0025] Figure 8 This is a second-view schematic diagram of the structure of a first hydraulic system of the monitoring device provided in an embodiment of the present invention;

[0026] Figure 9 yes Figure 7 A cross-sectional view of the hydraulic cylinder in the diagram;

[0027] Figure 10 This is a schematic diagram of another monitoring device provided in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the track structure of a monitoring device provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of a switching device of the monitoring device provided in an embodiment of the present invention;

[0030] Figure 13 yes Figure 12 Enlarged diagram of point A in the diagram;

[0031] Figure 14 This is a schematic diagram of the track structure of a monitoring device provided in an embodiment of the present invention;

[0032] Figure 15 This is a schematic diagram of another monitoring device provided in an embodiment of the present invention;

[0033] Figure 16 This is a schematic diagram of an electrical connection structure of a monitoring device provided in an embodiment of the present invention;

[0034] Figure 17 This is a schematic diagram of an installation structure of the monitoring device provided in an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Camera equipment; 2. First gear; 3. Transmission block; 4. Bearing component; 31. First rack structure; 5. First side gear; 6. Central gear; 7. Second gear; 32. Second rack structure; 8. Second side gear; 9. First hydraulic system; 91. Oil reservoir; 92. First hydraulic cylinder; 93. Hydraulic pump; 94. Hydraulic oil pipe; 95. Solenoid valve; 96. Flow meter; 941. Outlet oil pipe; 942. Return oil pipe; 921. Piston rod; 922. Inlet; 923. Hydraulic chamber; 924. Return spring; 925. Outlet; 10. Push rod; 101. Sliding groove; 33. Sliding rod; 11. Mounting bracket; 12. Rail; 13. Switching device; 14. Sliding column; 131. Reversing block; 132. Reversing rack; 133. Reversing gear; 134. Reversing hydraulic cylinder; 15. Third gear; 16. Third rack structure; 17. Rotary joint; 18. Rotary table; 19. Second hydraulic cylinder; 20. Protective cover; 21. Electrical connection device; 211. Fixing component; 212. Contact spring; 213. Electrical connection contact head; 214. Contact electrode plate; 22. Mounting base; 23. Mounting head; 231. Wire storage hole; 232. Fixing hole; 24. Terminal. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0039] In the following description, the terms "first" and "second" are used merely to distinguish different objects and do not imply any similarity or connection between them. It should be understood that the directional descriptions "first direction" and "width direction" refer to the directions under normal use conditions.

[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] This invention provides a monitoring device, which generally includes a camera, a rotation device, and a control system. The camera is used to acquire image information, and the rotation device and control system are used to control the rotation of the camera. Related monitoring devices include... Figure 1 The monitoring pan-tilt unit shown typically consists of two AC motors, one for horizontal rotation and the other for vertical rotation. The control system can control the horizontal motor to drive the camera to rotate 360° horizontally and the vertical motor to drive the camera to rotate 180° vertically, thus enabling monitoring within a hemispherical area. The mounting method varies depending on the area being monitored, such as… Figure 1 In this context, using a building perpendicular to the ground as a reference, the monitoring pan-tilt unit is mounted on the building via a mounting bracket. The monitoring pan-tilt unit can be installed parallel to the building, or as... Figure 2 As shown, the monitoring pan-tilt unit is installed perpendicular to the building, on one side of the building, to monitor the view in front of the building. In some other usage scenarios, the monitoring device may need to monitor the view above or below the building. In such cases, the monitoring device is installed on the top or bottom surface of the building, and the horizontal or vertical rotation angle is designed according to the required monitoring range. Any scenario in which the monitoring device of this application is used to monitor the surrounding environment is included in the application of the monitoring device of this application. Different application scenarios do not affect the structure of the monitoring device. The monitoring device of this application will be described below by way of example, using a monitoring pan-tilt unit.

[0042] A monitoring device, such as Figure 3 As shown, the system includes a camera device 1, a first gear 2, a transmission block 3, and a support member 4. The camera device 1 is mounted on the support member 4. As mentioned earlier, the camera device 1, as an important component in the monitoring device, is used to acquire image information. The first gear 2 is connected to the camera device 1 via a rotational central shaft to drive the camera device 1 to rotate. Thus, when the first gear 2 rotates, it can drive the camera device 1 to rotate. Multiple driven gears can be arranged between the first gear 2 and the camera device 1 so that the first gear 2 can drive the camera device 1 to rotate even when positioned at any location in space, thereby meeting monitoring requirements.

[0043] A first rack structure 31 is provided on one side of the transmission block 3, which can mesh with the first gear 2 to rotate the first gear 2. That is, the rotation of the first gear 2 is achieved by meshing with the first rack structure 31 on the transmission block 3. Thus, the transmission block 3 moves linearly, and the first rack structure 31 moves, driving the first gear 2 to rotate. The transmission block 3 is a structure with a certain length, width, and height. The first rack structure 31 can be provided on one side of the transmission block 3. The direction of movement of the transmission block 3 is the same as the direction of movement of the first rack structure 31. It is not limited to the first rack structure 31 being on one side of the transmission block 3 in the length direction or the width direction; the specific arrangement depends on the requirements. The movement of the transmission block 3 can be driven by various methods, such as motor drive or hydraulic system drive.

[0044] For ease of connection and installation, the first gear 2 and the transmission block 3 are mounted on the support member 4, with the first gear 2 rotatably connected to the support member 4 and the transmission block 3 translatably connected to the support member 4. The support member 4 provides support for the first gear 2 and the transmission block 3. The camera device 1 is connected to the support member 4 via the first gear 2. The driving devices, such as the first gear 2 and the transmission block 3, can be mounted on the same side of the support member 4 as the camera device 1, or they can be mounted on different sides. Figure 3 In the structure shown, the first gear 2 and the transmission block 3 are located on one side of the support member 4, and the camera device 1 is located on the other side of the support member 4. The camera device 1 is located at the center of the support member 4 to facilitate structural installation and aesthetics.

[0045] The transmission block 3 can switch between a first state and a second state. In the first state, the first rack structure 31 meshes with the first gear 2; in the second state, the first rack structure 31 disengages from the first gear 2. Figure 3 The diagram shows the first gear 2 in the first state. That is, in the first state, the transmission block 3 can drive the first gear 2 to rotate through the movement of the transmission block 3.

[0046] Specifically, the rotation angle of the first gear varies depending on the length of the first rack structure on the transmission block. The length of the first rack structure limits the continuous rotation of the first gear in the same direction. Therefore, the transmission block is configured with a first state and a second state. In the first state, the first rack structure meshes with the first gear, and movement of the transmission block drives the first gear to rotate along the direction of movement of the transmission block. At the initial position, one end of the first rack structure meshes with the first gear. As the transmission block moves, the meshing point between the first rack structure and the first gear gradually moves to the other end of the first rack structure, reaching the end of the single-sided stroke. To ensure the first gear can continuously rotate in the same direction, the transmission block needs to return to the initial position, resuming movement in the initial direction and driving the first gear to rotate. Thus, after reaching the end of the single-sided stroke, the transmission block switches to the second state, disengaging the first rack structure from the first gear, preventing the first gear from rotating in the opposite direction during the transmission block's return to the initial position. After the first rack structure separates from the first gear, the transmission block returns to its initial position in the opposite direction to the initial movement direction. That is, the transmission block switches from the first state to the second state, then back to the first state to mesh with the first gear, and moves again in the initial movement direction to drive the first gear to rotate in the same direction. The transmission block continuously reciprocates, switching from the first state to the second state and back to the first state. This continuous meshing, disengagement, and re-meshing of the first rack structure with the first gear achieves intermittent but continuous driving of the camera device to rotate in the same direction. Thus, the first gear can rotate at least 360 degrees. Compared to determining the rotation angle of the first gear based on the length of the first rack structure, which requires a longer rack to achieve a larger rotation angle, the monitoring device provided in this embodiment significantly reduces the length of the first rack, thereby reducing the space occupied by the device. It should be noted that "intermittent" refers to the situation where the first gear does not rotate and stops when the transmission block returns to its initial position in the second state. "Continuous" refers to the continuous reciprocating movement of the transmission block, sustainably driving the first gear to rotate.

[0047] The transmission block can be switched from the first state to the second state by the switching device 13, for example, by switching the motor or switching the hydraulic system to drive the transmission block directly, or by driving the switching device 13 through the motor to drive the transmission block.

[0048] This application provides a monitoring device, including a camera; a carrier; a first gear rotatably connected to the carrier and connected to the camera to drive the camera to rotate; and a transmission block movably connected to the carrier, with a first rack structure on one side capable of meshing with the first gear to rotate the first gear. The transmission block can switch between a first state and a second state. In the first state, the first rack structure meshes with the first gear; in the second state, the first rack structure disengages from the first gear. In the first state, the first rack structure on the transmission block meshes with the first gear, enabling the transmission block to drive the first gear to rotate. In the second state, the first gear structure disengages from the first gear, preventing the transmission block from driving the first gear to rotate in the opposite direction during its return to the initial position. Switching between the first and second states allows the transmission block to return to its initial position and re-engage with the first rack structure to continuously drive the first gear to rotate in the same direction. This achieves unidirectional rotation while reducing the length of the first rack structure, increasing the meshing stroke, and saving space occupied by the monitoring pan-tilt unit. Furthermore, by configuring the first rack of the transmission block, the transmission block can mesh with the first gear by making a linear motion. The motion mode is simple, and the linear motion of the transmission block makes the driving mode of the monitoring device in this embodiment of the application more diverse. For example, the transmission block can be driven by a motor or by hydraulics.

[0049] The first rack structure enables the first gear to rotate intermittently and continuously in the same direction, meaning the camera device rotates intermittently and continuously in the same direction. To ensure the camera device rotates continuously in the same direction, in some embodiments, such as... Figure 4 As shown, an identical transmission block 3 is provided on the other side of the first gear 2, meaning the first gear 2 is located between the two transmission blocks 3. When the first rack structure 31 of one transmission block 3 separates from the first gear 2, the second rack structure 32 of the other transmission block 3 meshes with the first gear 2. The two transmission blocks 3 move linearly in opposite directions to drive the first gear 2 to rotate in the same direction. In this way, it can be ensured that the first gear 2 rotates continuously in the same direction.

[0050] In some embodiments, such as Figure 5As shown, the monitoring system also includes a second gear 7, which is spaced apart from the first gear 2. A transmission block 3 is positioned between the first gear 2 and the second gear 7. A second rack structure 32 capable of meshing with the second gear 7 is provided on the other side of the transmission block 3. In the second state, the second rack structure 32 meshes with the second gear 7. Thus, the first gear 2 and the second gear 7 are respectively located on both sides of the transmission block 3. After the transmission block 3 switches from the first state to the second state, the second rack structure 32 of the transmission block 3 meshes with the second gear 7. The transmission block 3 can drive the second gear 7 to rotate in the opposite direction to the initial direction of motion, and the rotation direction is the same as that of the first gear 2. The second gear 7 can be connected to the camera device 1 through multiple driven wheels to drive the camera device 1 to rotate continuously.

[0051] exist Figure 3 and Figure 5 In the monitoring device shown, the camera 1 is positioned at the center of the support member 4, while the first gear 2 and the second gear 7 are located on either side of the transmission block 3. A driven wheel is positioned between the first gear 2 and the second gear 7, allowing either the first gear 2 or the second gear 7 to drive the camera 1 via the driven wheel. Specifically, as shown... Figure 6 As shown, the first gear 2 is connected to the first side gear 5 via a rotating central shaft. The first side gear 5 meshes with the central gear 6, which is connected to the camera device 1 via the rotating central shaft. The second gear 7 is connected to the second side gear 8 via the rotating central shaft. The second side gear 8 meshes with the central gear 6, driving the central gear 6 to rotate, thus rotating the camera device 1. The central gear 6 simultaneously meshes with both the first side gear 5 and the second side gear 8. When the transmission block 3 switches from the first state to the second state, the camera device 1 switches from being driven by the first gear to being driven by the second gear, thus allowing the camera device 1 to maintain continuous rotation.

[0052] It should be noted that during actual monitoring, the rotation of the first gear in the camera equipment is not always in the same direction. For example, when the camera equipment detects a specific scene that needs further examination, it can pause or rotate in the opposite direction to review it. Correspondingly, the transmission block can stop moving when the first gear is engaged with the first rack structure in the first state. When the camera equipment rotates in the opposite direction, the transmission block moves in the opposite direction to the initial direction of movement, which can drive the first gear to rotate in the opposite direction. Optionally, the transmission block can be directly switched from the first state to the second state, i.e., from the first rack structure to the second gear structure, in the same direction of movement via a drive device, thus realizing the reverse rotation of the camera equipment. Directly switching the transmission block from the first state to the second state keeps the direction of movement of the transmission block unchanged, avoiding the time problem of hydraulic pressure build-up during hydraulic reverse drive, making the reverse rotation operation of the camera equipment simple and quick.

[0053] In some embodiments, the monitoring device further includes a first hydraulic system 9, which drives the transmission block 3 to move along a first direction. The first direction is the direction of movement of the transmission block, which includes the direction of movement when the transmission block is in a first state, with the first rack structure meshing with the first gear and driving the first gear to rotate, and also the direction of movement when the transmission block is in a second state, with the second rack structure meshing with the second gear and driving the second gear to rotate. The direction of movement of the transmission block in the first state is opposite to the direction of movement in the second state. It should be noted that the first hydraulic system 9 can include any structure that moves the transmission block 3 along the first direction, as described below. Figure 7 and Figure 8 The first hydraulic system is described by way of example. It should be understood that, except for Figure 7 and Figure 8 In addition to the structure shown, the first hydraulic system 9 may also include other structures or be composed of other structures.

[0054] Specifically, such as Figure 7 and Figure 8 As shown, the first hydraulic system 9 includes an oil reservoir 91 for storing hydraulic oil, a first hydraulic cylinder 92 that drives a transmission block, a hydraulic pump 93 that provides hydraulic pressure to the first hydraulic cylinder 92, and hydraulic oil pipes 94. The hydraulic oil pipes 94 are divided into an outlet pipe 941 and a return pipe 942. The outlet pipe 941 is connected to the hydraulic pump 93, allowing hydraulic oil to be pumped from the oil reservoir 91 into the first hydraulic cylinder 92 via the hydraulic pump 93. The return pipe 942 is directly connected to the oil reservoir 91, directly transporting the hydraulic oil from the first hydraulic cylinder 92 back to the oil reservoir 91.

[0055] The piston rod 921 of the first hydraulic cylinder 92 is connected to the transmission block 3 via a push rod 10. Specifically, the end of the piston rod 921 of the first hydraulic cylinder 92 is connected to the push rod 10, which extends to the transmission block 3 in a direction perpendicular to the piston rod 921. A sliding rod 33 is provided at the upper end of the transmission block 3. The sliding rod 33 is connected to the push rod 10 via a sliding groove 101 so that the movement of the push rod 10 can drive the sliding rod 33 to slide along the pushing direction of the first hydraulic cylinder 92. The sliding groove 101 is an oblong groove that extends along the length of the push rod 10. Thus, when the transmission block 3 switches from the first state to the second state, the sliding rod 33 slides along the length of the oblong groove. In this embodiment, the first hydraulic system 9 is located on both sides of the transmission block 3 and connects the piston rod 921 and the transmission block 3 via the push rod 10. This ensures that the movement direction of the piston rod 921 is the same as the movement direction of the transmission block 3, while saving space occupied by the hydraulic equipment and making the structure of the monitoring device more compact.

[0056] The movement of the piston rod 921 in the first hydraulic system can be controlled by a solenoid valve 95 and a flow meter 96 connected in the outlet oil pipe 941 and the return oil pipe 942. The solenoid valve 95 controls the opening and closing of the hydraulic oil pipe 94, and the flow meter 96 is used to detect the amount of oil passing through the hydraulic oil pipe 94. Specifically, as... Figure 9 As shown, when hydraulic oil enters the hydraulic chamber 923 from the inlet 922, it pushes the piston rod 921 forward, compressing the return spring 924 and driving the push rod 10 forward. The flow meter detects that the injected oil volume has reached the specified amount and closes the inlet solenoid valve. When the push rod 10 needs to move in the opposite direction, the outlet solenoid valve 925 is opened. The hydraulic oil in the hydraulic chamber 923 flows back to the oil reservoir 91 under the push of the return spring 924. The flow meter detects that the returned oil volume has reached the specified amount and closes the outlet solenoid valve 925. In this way, the reciprocating movement of the piston rod 921 can be controlled, thereby driving the reciprocating motion of the transmission block 3. By monitoring the hydraulic oil volume in real time and controlling the opening and closing of the hydraulic oil pipes, the movement of the piston rod can be precisely controlled. Furthermore, when the camera equipment stops at any position during rotation, the hydraulic cylinder can be directly controlled to stop, without the need for a locking structure.

[0057] like Figure 8 As shown, a mounting bracket 11 is provided above the first gear 2 and the second gear 7. A gap is left between the mounting bracket 11 and the first gear 2 and the second gear 7 so that the first gear 2 and the second gear 7 can rotate normally. The first hydraulic system 9 is installed on the mounting bracket 11.

[0058] The first hydraulic system's linear motion drive mode can match the linear motion of the transmission block, allowing the hydraulic cylinder to directly drive the transmission block without the need for other transmission mechanisms. Compared to monitoring devices or pan-tilt units using electronic control systems, which may experience control system failures or deviations in harsh environments such as sandstorms, high humidity, and low temperatures, or in extremely low temperatures like freezing environments where the motor may fail to rotate, the electronic control system may be overloaded and damaged, or it may lose its functionality, the first hydraulic system can adapt to harsh operating environments. When the environment experiences large temperature fluctuations, rain, or humidity, the drive unit and control system are less prone to short circuits. Even in low ambient temperatures where the hydraulic oil has a low freezing point, the first hydraulic system can still operate normally without the motor failing to rotate or burning out. Furthermore, the first hydraulic transmission is smoother than electric motor transmission and can handle greater torque. Applying the first hydraulic system to a monitoring system not only solves the problem of environmental impact but also ensures compatibility with the transmission block structure, providing normal driving force to meet the continuous rotation requirements of the camera equipment.

[0059] The monitoring system also includes a switching device 13, which enables the transmission block to switch from a first state to a second state. A first hydraulic system drives the transmission block to move linearly along a first direction, switching the transmission block from the first state to the second state, i.e., from meshing with the first gear on the first rack structure to meshing with the second gear on the second rack structure. The first and second states of the transmission block are separated by a certain distance. Thus, this embodiment provides a switching device 13 to achieve the switching of the transmission block from the first state to the second state. For example, the switching device 13 includes a second hydraulic system, which drives the transmission block to move along a second direction. That is, the second hydraulic system can directly drive the transmission block, and the second direction can be any direction that allows the transmission block to switch from the first state to the second state. The second direction can be perpendicular to the first direction or inclined to the first direction. Using the second hydraulic system to achieve the switching of the transmission block from the first state to the second state can further improve the anti-interference capability of the monitoring device and avoid situations where the monitoring device cannot operate normally in extremely harsh environments.

[0060] Specifically, such as Figure 10As shown, the monitoring system also includes a track 12 and a sliding column 14 disposed at the bottom of the transmission block 3. The track 12 includes a first track 121, a second track 122 disposed at intervals from the first track 121, and a connecting track 123 connecting the first track 121 and the second track 122. The first track 121 is disposed between the first gear 2 and the second track 122, and the second track 122 is disposed between the first track 121 and the second gear 7. The sliding column 14 slides within the track 12. The switching device 13 is disposed within at least part of the connecting track 123 to cause the sliding column 14 to switch along the first track 121 to the second track 122, so that the transmission block 3 switches from the first state to the second state. Specifically, the first track 121 and the second track 122 are disposed between the first gear 2 and the second gear 7. The first track 121 and the second track 122 are disposed along the first direction of the transmission block 3. The transmission block 3 slides within the first track 121 via the sliding column 14. In the first state, the transmission block 3 is in contact with the first gear 2 via the first rack structure 31. The sliding column 14 is switched to the second track 122 via the switching device 13, which is at least partially disposed within the connecting track 123. In the second state, the transmission block 3 is in contact with the second gear 7 via the second rack structure 32. The connecting track 123 is used for the sliding column 14 to slide from the first track 121 to the second track 122. The switching device 13 is used to ensure that the sliding column 14 can slide within the connecting track 123, so that the sliding column 14 can smoothly slide from the first track 121 to the second track 122. The first track 121 and the second track 122 are tracks of a certain length. Therefore, multiple connecting tracks 123 can be provided, which can be located at the ends of the first track 121 and the second track 122, or at any position between the ends of the first track 121 and the second track 122. The specific location and number of connecting tracks 123 are related to the switching position of the transmission block 3. One or more sliding columns 14 can be provided; the specific number can be determined based on the stability of the sliding column 14 within the track. The switching device 13 can be partially or entirely located within the connecting track 123.

[0061] In some embodiments, such as Figure 11As shown, the connecting track 123 includes a first connecting track 1231 and a second connecting track 1232, which respectively connect to the two ends of the first track 121 and the second track 122. The switching device 13 includes two reversing blocks 131, which are at least partially disposed within the first connecting track 1231 and the second connecting track 1232. Both reversing blocks 131 are rotatable to drive the sliding column 14 to slide within the first connecting track 1231 or the second connecting track 1232. The first connecting track 1231 and the second connecting track 1232 can connect to the two ends on the same side of the first track 121 and the second track 122, or they can connect to the two ends on opposite sides of the first track 121 and the second track 122. Figure 11 As shown, the first connecting track 1231 and the second connecting track 1232 connect the two ends on the same side of the first track 121 and the second track 122, respectively, which simplifies the structure, facilitates control, and saves material used for track length. To facilitate the sliding of the sliding column 14 and reduce sliding resistance, the first connecting track 1231 and the second connecting track 1232 can be set as an arc-shaped structure, so that the track 12 forms a circular track. It should be noted that, without using the switching device 13, the first connecting track 1231 and the second connecting track 1232 can also be directly set as an arc-shaped structure, and the characteristics of the arc-shaped structure itself allow the sliding column 14 to slide to the other track.

[0062] At least two reversing blocks 131 are partially disposed within the first connecting track 1231 and the second connecting track 1232, so that when the sliding column 14 contacts the reversing block 131, the reversing block 131 can further drive the sliding column 14 to slide by rotating.

[0063] Optionally, when the transmission block 3 reaches the end of the unidirectional stroke, the first hydraulic cylinder 92 pushes the push rod 10 to move in the opposite direction. During the retraction process, the sliding column 14 contacts the inclined surface of the reversing block 131 and enters the track on the other side along the inclined surface. The transmission block 3 meshes with the first gear 2 and then with the second gear 7. The non-standard asymptotic meshing generated during the disengagement and engagement of the transmission block 3 cancels out the transmission, and will not affect the accuracy of the transmission.

[0064] Specifically, such as Figure 12 , Figure 13As shown, the switching device 13 also includes a reversing rack 132, a reversing gear 133, and a reversing hydraulic cylinder 134. The reversing block 131 is connected to the reversing gear 133. When the sliding column 14 contacts the reversing block 131, the reversing hydraulic cylinder 134 drives the reversing rack 132 to move, drives the reversing gear 133 to rotate, thereby driving the reversing block 131 to rotate. The rotation of the reversing block 131 can also be directly driven by a motor. Multiple reversing blocks 131 can be arranged in the first connecting track 1231 or the second connecting track 1232.

[0065] Furthermore, such as Figure 10 As shown, two sliding columns 14 are provided, spaced apart at the bottom of the transmission block 3 along the first direction. Compared to providing a single sliding column 14, the sliding of two sliding columns 14 within the track 12 is more stable, making it less prone to deflection when switching tracks 12, thus reducing the probability of failure to switch due to deflection. Therefore, switching devices 13 can be provided in both connecting tracks 123, facilitating the smooth sliding of both sliding columns 14 to the other track. Alternatively, the switching device 13 can be provided in part of the connecting track 123. The switching device 13 in the connecting track 123 drives one sliding column 14 within that track 123 to slide to one track 12, while the other sliding column 14, driven by the same sliding column 14, slides directly from the other connecting track 123 to the same track 12, achieving the switching of the transmission block 3 from the first state to the second state without the need for the switching device 13.

[0066] Furthermore, such as Figure 14 As shown, the connecting track 123 also includes a third connecting track 1233, which is disposed between the first connecting track 1231 and the second connecting track 1232. Thus, multiple third connecting tracks 1233 can be provided. When two sliding posts 14 are spaced apart at the bottom of the transmission block 3 along a first direction, the transmission block 3 switches from a first state to a second state. That is, one sliding post 14 slides along the first connecting track 1231, and the reversing block 131 disposed within the first connecting track 1231 drives the sliding post 14 to slide smoothly from the first track 121 to the second track 122. The other sliding post 14 slides to the second track 122 via the third connecting track 1233. The reversing block 131 may or may not be provided in the third connecting track 1233. The distance between the third connecting track 1233 and the first connecting track 121 along the first direction is less than the distance between the two sliding columns 14, and the distance between the third connecting track and the second connecting track 122 along the first direction is less than the distance between the two sliding columns. Thus, when any one of the two sliding columns 14 slides from the first connecting track 1231 or the first connecting track 1232, the other sliding column can smoothly switch between the first track 121 or the second track 122 via the third connecting track 1233.

[0067] In some embodiments, such as Figure 15 As shown, the monitoring device also includes a third gear 15, which is connected to the camera device 1 to drive the camera device 1 to rotate; wherein, the rotation center axis of the third gear 15 is perpendicular to the rotation center axis of the first gear 2. That is, the first gear 2 and the second gear 7 drive the camera device 1 to rotate in the first plane, and the third gear 15 drives the camera device 1 to rotate in the second plane. The first plane and the second plane form a preset angle. Specifically, the preset angle can be any angle between 0 degrees and 180 degrees. For example, the first plane and the second plane can be perpendicular, that is, the preset angle is 90 degrees. Taking a horizontal plane and a vertical plane as an example, the first plane is a horizontal plane, meaning the camera device 1 can rotate 360 ​​degrees in the horizontal plane, and the second plane is a vertical plane, meaning the camera device rotates in the vertical plane.

[0068] Specifically, the camera device 1 is connected to the rotation center shaft of the third gear 15. The third gear 15 moves by meshing with the third rack structure 16. To achieve synchronous rotation of the camera device 1 in both the horizontal and vertical planes, the third gear 15 and the third rack structure 16 rotate synchronously with the camera device 1 in the horizontal plane. Thus, in... Figure 6 , Figure 15 In the structure shown, a rotary table 18 can be installed between the central gear 6 and the camera device 1. The central gear 6 drives the camera device 1 and the rotary table 18 to rotate synchronously. Thus, a third gear 15 and a third rack structure 16 can be installed on the side of the rotary table 18 closest to the camera device. A second hydraulic cylinder 19 can be installed to drive the third rack structure 16. The second hydraulic cylinder 19 can share the same oil reservoir as the first hydraulic cylinder 92, or it can be part of a separate hydraulic system. It should be noted that, for structural compactness and ease of connection, a rotary joint 17 is installed directly below the transmission block 3, above the central secondary gear 6. The rotatable ends of the rotary joint 17 can be used to connect hydraulic oil pipes, allowing hydraulic oil to flow during rotation. It is connected to the second hydraulic cylinder 19 via the rotary table 18. A certain space is reserved between the rotary table 18 and the support member 4 to facilitate the installation of the rotary joint 17, without obstructing the rotation of the first side gear 5, the central gear 6, and the second side gear 8.

[0069] The rotation of the third gear 15 can directly drive the camera device 1 to rotate freely from 0 to 180 degrees in the vertical plane. By setting the end point of the stroke of the third rack structure or the limit position of the hydraulic cylinder piston rod at the 0-degree and 180-degree positions of the camera device, the automatic limit can be set so that the monitoring device camera device can form a hemispherical monitoring area.

[0070] The monitoring device also includes a protective cover 20, which is installed on the outside of the camera device 1 and connected to the carrier 4 to protect the camera device and the drive device, preventing dust and moisture from entering the monitoring device and affecting its operation. The protective cover can be made of one-way glass, allowing the camera device to clearly see the outside of the protective cover while preventing the outside from seeing the movement of the internal camera device. This prevents the rotation of the camera device from attracting attention in public places and prevents malicious individuals from avoiding the monitoring range based on the camera's rotation. The protective cover can be a hemispherical shape that coincides with the rotation center axis of the camera device. The coincidence of the rotation center of the camera device with the center of the protective cover ensures that the lens of the camera device is always perpendicular to the surface of the protective cover when it rotates, avoiding light refraction that affects the clarity.

[0071] The monitoring device also includes an electrical connection device 21, such as Figure 16 As shown, the electrical connection device 21 is disposed between the rotary table 18 and the carrier 4, and is used to connect devices disposed on the horizontal and vertical planes. The electrical connection device 21 includes a fixing member 211, a contact spring 212, an electrical contact head 213, a contact electrode plate 214, etc. The fixing member 211 is connected to the rotary table 18, and multiple sets of electrical contact heads 213 are provided on the fixing member 211. The contact spring 212 abuts the electrical contact head 213 against the contact electrode plate 214 to achieve electrical connection.

[0072] In actual installation, such as Figure 17 As shown, the mounting base 22 of the monitoring device is also provided with a mounting head 23 that cooperates with the mounting base 22. The mounting head 23 cooperates with the corresponding mounting groove on the mounting base 22. A fixing hole 232 is provided on one side of the mounting head 23, so that the main body of the monitoring device can be fixed on the mounting base 22 by bolts. A wire storage hole 231 is provided on the end face of the mounting head 23. A connector 24 is provided in the wire storage hole 231 for connecting wires. Excess wires can be put into the wire storage hole 231.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A monitoring device, characterized in that, include: Load-bearing components; A camera device is mounted on the carrier. The first gear is rotatably connected to the carrier and is drive-connected to the camera device to drive the camera device to rotate; A second gear is provided, and a driven wheel is provided between the first gear and the second gear, so that the first gear or the second gear drives the camera device through the driven wheel; The transmission block is movably connected to the bearing member. The transmission block is disposed between the first gear and the second gear, and one side of the transmission block is provided with a first rack structure that can mesh with the first gear to make the first gear rotate, and the other side is provided with a second rack structure that can mesh with the second gear. and The switching device enables the transmission block to switch from a first state to a second state. In the first state, the first rack structure meshes with the first gear, and in the second state, the first rack structure is separated from the first gear and meshes with the second gear. The monitoring device further includes a track and a sliding column disposed at the bottom of the transmission block. The track includes a first track, a second track spaced apart from the first track, and a connecting track connecting the first track and the second track. The first track is disposed between the first gear and the second track. The connecting track includes a first connecting track and a second connecting track, which respectively connect the two ends of the first track and the second track. The switching device includes two reversing blocks, which are at least partially disposed within the first connecting track and the second connecting track. Both reversing blocks are rotatable to drive the sliding column to slide within the first connecting track or the second connecting track, thereby causing the sliding column to switch from the first track to the second track, so that the transmission block switches from the first state to the second state.

2. The monitoring device according to claim 1, characterized in that, The monitoring device also includes a first hydraulic system, which is used to drive the transmission block to move along a first direction.

3. The monitoring device according to claim 1, characterized in that, Two sliding columns are provided, and the two sliding columns are spaced apart at the bottom of the transmission block along a first direction.

4. The monitoring device according to claim 3, characterized in that, The connecting track further includes a third connecting track, which is disposed between the first connecting track and the second connecting track. The distance between the third connecting track and the first connecting track along the first direction is less than the distance between the two sliding columns, and the distance between the third connecting track and the second connecting track along the first direction is less than the distance between the two sliding columns.

5. The monitoring device according to claim 1, characterized in that, The switching device includes a second hydraulic system for driving the transmission block to move along a second direction; wherein the first direction and the second direction form a preset angle.

6. The monitoring device according to any one of claims 1-5, characterized in that, The monitoring device further includes a third gear, which is connected to the camera device to drive the camera device to rotate; wherein the rotation center axis of the third gear is perpendicular to the rotation center axis of the first gear.

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