A liftable anti-shielding monitoring device

Abstract

The utility model relates to a liftable anti -shading monitoring device, including the mounting seat and camera of rotation connection, the one end of mounting seat is equipped with the sliding block away from camera, the sliding block goes up and down linear motion along the slide rail, realizes the height adjustment of mounting seat, simultaneously, camera and mounting seat upside all are equipped with the pull rope, and the other end of pull rope is connected the winding roller, therefore, change the number of turns of pull rope winding on the winding roller, then can realize the accurate adjustment to camera and its mounting seat height, make this device can pass through the height position of adjusting mounting seat and camera, effectively avoid the obstacle, ensure the continuity of monitoring video recording. Further, the device is provided with the stretch spring under the camera, and the stretch spring provides the pull down force for the camera, and by controlling the motion speed of the camera pull rope to be lower than the mounting seat pull rope, the angle adjustment is realized, then the angle between the central axes of the two can be adjusted synchronously, thereby avoiding the change of the monitoring area.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, and in particular to a height-adjustable and anti-obstruction monitoring device. Background Technology

[0002] Monitoring equipment is a type of instrument specifically designed to monitor a particular environment or system. Its main functions include real-time data acquisition, monitoring of status changes, and issuing alarm signals when necessary.

[0003] Given the high security requirements, many areas with high security standards are now equipped with corresponding anti-obstruction monitoring equipment. In the field of security, surveillance cameras are a key security measure, and their anti-obstruction functions, through intelligent technologies such as still image detection and occlusion detection, can effectively prevent unauthorized individuals from deliberately obstructing the cameras. For example, LntonAIServer's video quality diagnostic function includes occlusion detection. By building background models and foreground extraction techniques, it can promptly detect and report occlusion situations, preventing the loss of information in important monitored areas. Furthermore, intelligent anti-obstruction measures can more quickly identify different objects and detect anomalies in the surveillance footage, issuing alerts and providing useful information in the fastest and most efficient way, thus more effectively assisting security personnel in handling crises.

[0004] In existing technologies, anti-obstruction measures for surveillance equipment often involve adjusting the camera's position (such as using a screw or electronic telescopic rod) to avoid obstructions. It is worth noting that existing technologies require integrating a rotary motor at the camera's location to ensure that the viewing angle adjusts synchronously after the position is changed, maintaining the continuity of the monitored area.

[0005] However, integrating the rotating motor and its control circuit increases hardware and software costs, and synchronization is difficult to guarantee. Adjusting the camera position may lead to blind spots in monitoring.

[0006] Based on this, this study proposes a novel liftable anti-obstruction monitoring device. This device can simultaneously adjust the position and viewing angle of the camera, effectively avoiding blind spots in the monitoring area and reducing overall costs. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention proposes a height-adjustable, anti-obstruction monitoring device. This device offers advantages such as high cost-effectiveness and effective avoidance of blind spots, solving the problems of blind spots and high costs associated with current technologies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A liftable, anti-obstruction monitoring device includes a mounting base with left and right axes. A camera is rotatably connected to the axial end of the mounting base. The angle between the central axis of the camera and the central axis of the mounting base is greater than 0° and less than 90°. A slider is fixedly connected to the other axial end of the mounting base. A slide rail is fixedly provided on the side of the slider away from the mounting base. The slider is inserted into the slide rail and moves vertically in a straight line. The projection of the slide rail on the vertical plane is an inverted L-shaped structure. A groove is opened on the vertical section of the slide rail, and the slider is inserted into the groove. A drive motor is fixedly connected to the horizontal section of the slide rail. Two horizontally aligned take-up rollers are arranged side by side on one side of the drive motor. The two take-up rollers are keyed to the output shaft of the drive motor. Pull ropes are wound around the outer ends of the two take-up rollers. The two pull ropes correspond to the camera and the mounting base, respectively. Each pull rope is movably connected to the corresponding camera and the mounting base. The outer diameter of the take-up roller corresponding to the camera is smaller than the outer diameter of the take-up roller corresponding to the mounting base. A tension spring is provided below the camera. The two axial ends of the tension spring are movably connected to the camera and the mounting base, respectively.

[0010] Preferably, a limiting member is fitted on the outer side of the camera and the mounting base, and hooks are fixedly connected to the upper and lower ends of each limiting member. The hook on the upper side of each limiting member is fixedly connected to the corresponding pull rope, and the hook on the lower side of each limiting member is movably connected to the axial end of the corresponding tension spring.

[0011] Preferably, each of the limiting members has a through-hole with an internal thread, and a bolt is screwed into the internal thread hole, with the bolt's thread end abutting against the corresponding camera and mounting base.

[0012] Preferably, an adjustment frame is provided between the hook located on the upper side of the camera and the corresponding pull rope. A through hole is provided through the adjustment frame. The adjustment frame is fixedly connected to the corresponding pull rope. A screw is inserted into the through hole. The lower side of the screw is movably connected to the corresponding hook. A locking nut is screwed into the middle section of the screw. The locking nut is located inside the adjustment frame, and the lower end of the locking nut abuts against the adjustment frame.

[0013] Preferably, a limiting roller is provided at the upper end of the mounting base, the limiting roller is rotatably connected to the slide rail, and the middle section of the pull rope corresponding to the mounting base is sleeved on the outside of the limiting roller.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In practical applications of this invention, the coordinated action of the winding roller and the pull rope, similar to the design of the rope retractor in Hongsheng Machinery's furnace top lifting device, enables precise adjustment of the height of the camera and its mounting base. This coordinated action not only improves work efficiency but also ensures the stability of the device, similar to the rotation mechanism of the winding roller and square shaft mentioned in the monitoring cable storage device. This design can automatically adjust the height of the mounting base and the camera when an obstacle is encountered in front of the camera, effectively avoiding obstacles and maintaining uninterrupted monitoring recording. Furthermore, this device uses a tension spring to apply a continuous downward pulling force to the camera. By controlling the speed of the camera pull rope to be lower than that of the mounting base pull rope, the angle of their central axes is adjusted synchronously, achieving stable adjustment during height changes. This design simplifies user operation, keeps the monitored area constant, and ensures a stable monitoring environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the connection between the camera and the mounting base of this utility model.

[0018] Figure 3 This is a schematic diagram showing the cooperation relationship between the camera and the limiting component of this utility model.

[0019] Figure 4 This is a schematic diagram showing the positional relationship between the mounting base and the slider of this utility model.

[0020] Figure 5 This is a schematic diagram showing the relationship between the hook and the pull rope of this utility model.

[0021] Figure 6 This is a schematic diagram showing the positional relationship between the take-up roller and the pull rope of this utility model.

[0022] In the diagram: 1. Camera; 2. Mounting base; 3. Slide rail; 4. Slider; 5. Slide groove; 6. Tension spring; 7. Limiting component; 8. Hook; 9. Bolt; 10. Screw; 11. Adjusting frame; 12. Locking nut; 13. Pull rope; 14. Drive motor; 15. Take-up roller; 16. Limiting roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1 and Figure 2 This is a height-adjustable, anti-obstruction monitoring device. Structurally, it is consistent with existing technologies, but its unique feature is the inclusion of a mounting base 2 along the left and right axes. A camera 1 is rotatably mounted on the axial end of the mounting base 2. In practical applications, adjusting the distance between the camera 1 and the central axis of the mounting base 2 allows for flexible adjustment of the monitoring area, adapting to different monitoring environments and needs.

[0026] like Figure 2 and Figure 3 As shown, camera 1 is securely connected to the ball head via a connecting rod. The mounting base 2 is designed with a spherical groove that perfectly fits the ball head, as well as a notch groove that adapts to the connecting rod. By restricting the shape of the notch groove, the rotation direction of camera 1 can be controlled, ensuring that camera 1 can only swing up and down around the center of the ball head, thereby ensuring that other structural components of the device can operate normally without interference.

[0027] In particular, the notch and groove design on the mounting base 2 is ingenious, ensuring that the angle between the connecting rod (i.e., the central axis of camera 1) and the central axis of mounting base 2 is strictly controlled between 0° and 90°. This design not only allows camera 1 to flexibly adjust its viewing angle to adapt to different monitoring needs, but also ensures that other structural components of the device can operate normally, maintaining the stability and reliability of the monitoring device.

[0028] See Figure 1 Unlike existing devices, this device features a slide rail 3 on one side of the camera 1 and its mounting base 2. The slide rail 3 has a groove 5, into which a slider 4 is inserted. The slider 4 is fixedly connected to the end of the mounting base 2 furthest from the camera 1. This design allows the mounting base 2 to move linearly up and down through the interaction between the slider 4 and the groove 5. Therefore, even when there are additional obstructions in front of the camera 1, the device can bypass these obstructions by changing the vertical position of the camera 1, ensuring continuous monitoring and avoiding blind spots.

[0029] It should be noted that the projection of the slide rail 3 in the vertical direction is an inverted L-shaped structure, and its vertical section is provided with a sliding groove 5, which makes this device as... Figure 1As shown, corresponding screws can be installed on the horizontal section of the slide rail 3 to fix the slide rail 3, and thus the mounting base 2 and the camera 1, ensuring the stability of the device during use.

[0030] In addition, such as Figure 1 and Figure 4 The mounting base 2 has two sliders 4 at the end away from the camera 1 to enhance the stability of the up and down movement, effectively prevent the camera 1 from shaking over a large range, and ensure clear monitoring recording.

[0031] It should be emphasized that, such as Figure 2 and Figure 3 Both the camera 1 and the mounting base 2 are equipped with limiting components 7 on their outer sides. Each limiting component 7 has an internally threaded hole into which a bolt 9 is screwed, with the bolt tail tightly against the camera 1 and the mounting base 2. This design ensures the reliability of the connection between the limiting component 7 and the camera 1 and the mounting base 2, and also guarantees the detachability of the limiting component 7. As shown in the figure, the camera 1 and the mounting base 2 of this device are completely identical to existing technology devices. Therefore, in practical applications, the limiting component 7 can be detachably connected to the camera 1 and the mounting base 2, allowing this device to be used to modify existing technology devices, thereby reducing the cost of modifying existing production lines and training new technicians, and improving production efficiency and economic benefits.

[0032] Accordingly, such as Figure 4 As shown, the mounting base 2 and the slider 4 are also detachably connected, which is compatible with the connection method of the limiting component 7, making it convenient for the maintenance and upgrading of the device.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, the limiting component 7 has a polygonal structure when projected vertically, and the camera 1 and mounting base 2 that cooperate with it also have polygonal projections in the vertical direction. This polygonal design can effectively prevent relative rotation between the limiting component 7 and the camera 1 and mounting base 2, thereby improving the stability of the contact between the bolt 9 and the limiting component 7 and ensuring that the monitoring device can operate stably for a long time.

[0034] Specifically, such as Figure 5 and Figure 6 As shown, in order to precisely adjust the height of the mounting base 2 (i.e., camera 1), this device cleverly provides hooks 8 at both the upper and lower ends of each limiting member 7. These hooks 8 are detachably fixed to the limiting member 7 by means of threads.

[0035] Meanwhile, a drive motor 14 is fixedly connected to the horizontal section of the slide rail 3. A take-up roller 15 is keyed to the output shaft of the drive motor 14. A pull rope 13 is wound around the outer end of the take-up roller 15. One end of the pull rope 13 is firmly fixed to the take-up roller 15, and the other end is flexibly connected to the hook 8 at the upper end of the mounting base 2. This design utilizes the cooperation between the take-up roller 15 and the drive motor 14. As the output shaft of the drive motor 14 drives the take-up roller 15 to rotate, the number of turns of the pull rope 13 around the take-up roller 15 is changed, thereby adjusting the height of the mounting base 2. In this way, users can achieve precise control over the height of the mounting base 2 to meet the needs of different scenarios.

[0036] It should be noted that in practical applications, both the mounting base 2 and the camera 1 are continuously affected by downward gravity. Therefore, when the rotating take-up roller 15 reduces the number of turns of the pull rope 13, the mounting base 2 will continue to move downward due to gravity. Conversely, when the number of turns of the pull rope 13 is increased, the pull rope 13 provides an upward pulling force, counteracting gravity and causing the mounting base 2 to rise. This mechanism ensures the stability and reliability of the mounting base 2 at different heights.

[0037] Specifically, please refer to Figure 5 and Figure 6 To ensure that the angle between the central axis of camera 1 and the central axis of mounting base 2 changes slowly during the up-and-down movement of mounting base 2 and camera 1, this device has a tension spring 6 installed on the lower side of both limiting members 7. The two axial ends of the tension spring 6 are movably connected to two hooks 8 on the lower side of the two limiting members 7, respectively. This design utilizes the inherent characteristics of the tension spring 6, combined with the height difference between the two limiting members 7, to ensure that the two limiting members 7 tend to move towards each other under the action of the tension spring 6. That is, while the relative height of mounting base 2 remains unchanged, the end of camera 1 away from mounting base 2 tends to move downwards. This increases the angle between the central axis of camera 1 and the central axis of mounting base 2 during the downward movement of the end of camera 1 away from mounting base 2.

[0038] Meanwhile, a pull rope 13 is movably connected to the hook 8 located on the upper side of the camera 1. The pull rope 13 and the tension spring 6 together provide a downward pulling force for the camera 1. By adjusting the difference in tension between the two, the movement angle of the camera 1 can be precisely controlled, ensuring control over the angle between the central axis of the camera 1 and the central axis of the mounting base 2. This design ensures the flexibility and accuracy of the camera 1 angle adjustment, meeting diverse monitoring needs.

[0039] Accordingly, to ensure synchronized vertical movement between the camera 1 and the mounting base 2, the device has two take-up rollers 15 arranged side-by-side on the output shaft of the drive motor 14. The two take-up rollers 15 correspond to the mounting base 2 and the camera 1, respectively. One end of the pull rope 13 is connected to the hook 8 of the camera 1, and the other end is fixed to the corresponding take-up roller 15. The pull rope 13 is wound around the corresponding take-up roller 15, ensuring that the height of the camera 1 adjusts synchronously when the position of the mounting base 2 changes. This design ensures synchronized movement between the camera 1 and the mounting base 2, thereby achieving continuous coverage of the monitored area.

[0040] It should be noted that in practical applications, as the height of camera 1 and mounting base 2 increases, the angle between the central axis of camera 1 and the central axis of mounting base 2 should gradually increase to ensure that the monitoring area of ​​camera 1 remains unchanged; correspondingly, as the height of camera 1 and mounting base 2 decreases, the angle between the central axis of camera 1 and the central axis of mounting base 2 should gradually decrease. This design fully considers the needs of camera 1 when monitoring at different heights, thus ensuring that the monitoring area is both stable and consistent.

[0041] Therefore, by limiting the outer diameter of the take-up roller 15 of camera 1 to be smaller than the outer diameter of the take-up roller 15 of mounting base 2, this device achieves a lower movement speed at the end of the pull rope 13 of camera 1 compared to the end of the pull rope 13 of mounting base 2. This design ensures that during the lifting process of camera 1 and mounting base 2, in conjunction with the tension spring 6, the end of camera 1 away from mounting base 2 can gradually move downwards relative to mounting base 2, thereby increasing the angle between the central axis of camera 1 and the central axis of mounting base 2. Correspondingly, during the lowering process of camera 1 and mounting base 2, the movement speed of the end of camera 1 away from mounting base 2 is less than the movement speed of mounting base 2, which reduces the angle between the central axis of camera 1 and the central axis of mounting base 2. Through this ingenious design, the angle between camera 1 and mounting base 2 can be flexibly adjusted to adapt to different monitoring scenarios.

[0042] In practical applications, this device can effectively control the angle between the central axis of the camera 1 and the central axis of the mounting base 2 in the initial state by adjusting the ratio between the winding length of the pull rope 13 corresponding to the camera 1 on the take-up roller 15 and the winding length of the pull rope 13 corresponding to the mounting base 2 on the take-up roller 15 in the initial state. This adjustment method is based on precise control of the length of the pull rope 13, thereby achieving the purpose of angle adjustment.

[0043] Nevertheless, the above adjustment methods are somewhat cumbersome and the adjustment accuracy is not high, which to some extent limits their application in the field of high-precision monitoring.

[0044] To address the aforementioned issues, this device incorporates an adjustment frame 11 between the hook 8 on the upper side of the camera 1 and the corresponding pull rope 13. The adjustment frame 11 has a through hole, and it is fixedly connected to the pull rope 13. A screw 10 is inserted into the through hole, and its lower side is movably connected to the corresponding hook 8. This design allows for precise control of the initial length between the end of the pull rope 13 and the camera 1 by adjusting the length of the screw 10.

[0045] Furthermore, to ensure adjustment accuracy, the middle section of the screw 10 is fixed with a locking nut 12, which is placed inside the adjustment frame 11 and fits tightly against the lower end of the adjustment frame 11. By tightening the locking nut 12, the length of the screw 10 on the lower side of the adjustment frame 11 can be precisely adjusted, thereby controlling the initial length between the end of the pull rope 13 and the camera 1. This design not only facilitates adjusting the angle between the central axis of the camera 1 and the central axis of the mounting base 2, but also adapts to the needs of various monitoring scenarios, greatly improving the applicability and flexibility of the device.

[0046] Considering that the mounting base 2 and the camera 1 are not located on the same vertical plane, in order to avoid interference between the angle between their central axes caused by the tilting of the pull rope 13 when the height of the mounting base 2 and the camera 1 changes, this device is specially designed with a winding roller 15 located directly above the camera 1, and a limiting roller 16 positioned directly above the mounting base 2. The limiting roller 16 is rotatably connected to the slide rail 3, and the middle section of the pull rope 13 is cleverly fitted outside the limiting roller 16. This design significantly reduces the angular deviation caused by the tilting of the pull rope 13 during operation, thereby ensuring the accuracy of the monitoring system.

[0047] In the practical application of this utility model:

[0048] First, the operator fixes the slide rail 3 in the appropriate position with the corresponding screws. At this time, with the help of the gravitational potential energy and the tension spring 6, the mounting base 2 and the camera 1 can automatically adjust to the required state.

[0049] Subsequently, the operator starts the drive motor 14, causing the take-up roller 15 to rotate. During this process, the height of the mounting base 2 and the camera 1 is gradually adjusted to the expected position, and at the same time, the angle between the central axis of the camera 1 and the central axis of the mounting base 2 also gradually changes;

[0050] Next, the operator fixes the screw 10 and rotates the locking nut 12 to adjust the length of the screw 10 under the adjustment frame 11 until the angle between the central axis of the camera 1 and the central axis of the mounting base 2 reaches the predetermined requirement and the monitoring area of ​​the camera 1 meets the expectations. At this time, the rotation of the locking nut 12 is stopped.

[0051] Ultimately, in actual use, if an obstruction appears in front of camera 1, the user can adjust the height of the mounting base 2 and camera 1 by controlling the forward and reverse rotation of the drive motor 14 to avoid the obstruction. During this process, the angle between the central axis of camera 1 and the central axis of mounting base 2 will be gradually adjusted to ensure that the monitoring area of ​​camera 1 remains constant.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liftable and anti-obstruction monitoring device, comprising a mounting base (2) with left and right axial directions, wherein a camera (1) is rotatably connected to the axial end of the mounting base (2), and the angle between the central axis of the camera (1) and the central axis of the mounting base (2) is greater than 0° and less than 90°, characterized in that: The mounting base (2) is fixedly connected to a slider (4) on the other axial end, and a slide rail (3) is fixedly provided on the side of the slider (4) away from the mounting base (2), and the slider (4) is inserted into the slide rail (3) to make up-down linear motion; The slide rail (3) is projected into an inverted L-shaped structure on the vertical plane. A groove (5) is provided on the vertical section of the slide rail (3). The slider (4) is inserted into the groove (5). A drive motor (14) is fixedly connected to the horizontal section of the slide rail (3). Two horizontally aligned take-up rollers (15) are arranged side-by-side on one side of the drive motor (14). The two take-up rollers (15) are keyed to the output shaft of the drive motor (14). Furthermore, pull ropes (13) are wound around the outer ends of the two take-up rollers (15). The two pull ropes (13) correspond to the camera (1) and the mounting base (2) respectively. Each of the pull ropes (13) is movably connected to the corresponding camera (1) and mounting base (2), and the outer diameter of the take-up roller (15) corresponding to the camera (1) is smaller than the outer diameter of the take-up roller (15) corresponding to the mounting base (2); A tension spring (6) is provided on the lower side of the camera (1), and the two axial ends of the tension spring (6) are movably connected to the camera (1) and the mounting base (2) respectively.

2. The anti-shielding monitoring device according to claim 1, wherein: Each of the camera (1) and the mounting base (2) is fitted with a limiting member (7) on its outer side. Each limiting member (7) has a hook (8) fixedly connected to its upper and lower ends. The hook (8) on the upper side of each limiting member (7) is fixedly connected to the corresponding pull rope (13), and the hook (8) on the lower side of each limiting member (7) is movably connected to the axial end of the corresponding tension spring (6).

3. The anti-shielding monitoring device according to claim 2, wherein: Each of the limiting members (7) has a through-hole with an internal thread, and a bolt (9) is screwed into the internal thread hole. The bolt (9) abuts against the corresponding camera (1) and mounting base (2).

4. The anti-shielding monitoring device according to claim 1, wherein: An adjustment frame (11) is provided between the hook (8) located on the upper side of the camera (1) and the corresponding pull rope (13). A through hole is provided on the adjustment frame (11). The adjustment frame (11) is fixedly connected to the corresponding pull rope (13). A screw (10) is inserted into the through hole. The lower side of the screw (10) is movably connected to the corresponding hook (8). A locking nut (12) is screwed into the middle section of the screw (10). The locking nut (12) is located inside the adjustment frame (11), and the lower end of the locking nut (12) abuts against the adjustment frame (11).

5. The anti-shielding monitoring device according to claim 1, wherein: The upper end of the mounting base (2) is provided with a limiting roller (16), the limiting roller (16) is rotatably connected to the slide rail (3), and the middle section of the pull rope (13) corresponding to the mounting base (2) is sleeved on the outside of the limiting roller (16).

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