A protective device for intelligent low-voltage engineering cameras

Abstract

This invention belongs to the field of camera technology and relates to a protective device for an intelligent low-voltage engineering camera. It includes an outer protective shell installed on the outside of the camera body, a protective mechanism located at the gap between the camera body and the outer protective shell, a buzzer on the outer wall of the outer protective shell, a relay module inside the camera body, and a vibration sensing mechanism and a trigger on the outer wall of the camera body. This invention, through the cooperation of the vibration sensing mechanism and the relay module, ensures that the camera body switches from standby to working state for monitoring only when the low-voltage cabinet door is pulled and vibrates. After the low-voltage cabinet sends a low-voltage signal after a delay, if no subsequent operation is detected, the relay module controls the camera body to reset to standby mode, avoiding prolonged high-load operation, extending the camera's lifespan, reducing maintenance costs, and minimizing unnecessary video recording, thus alleviating pressure on storage devices.

Description

Technical Field

[0001] This invention relates to the field of camera technology, specifically to a protective device for an intelligent low-voltage engineering camera. Background Technology

[0002] Low-voltage engineering refers to the engineering field centered on low-voltage, low-current systems in electrical applications. It mainly involves the design, installation, and commissioning of systems such as communication networks, security monitoring, building automation, smart homes, background music systems, and structured cabling. The role of cameras in low-voltage engineering is multi-dimensional, encompassing security protection, behavior monitoring, event tracing, and management optimization. Cameras can prevent malicious damage to low-voltage engineering projects and record maintenance operation information, thus achieving functions such as security protection, behavior monitoring, event tracing, and management optimization.

[0003] Currently, low-voltage electrical engineering projects commonly employ a 24 / 7 uninterrupted monitoring mode, utilizing cameras to continuously monitor system facilities. While this protection strategy achieves comprehensive coverage, it has significant drawbacks: firstly, prolonged high-load operation of cameras easily leads to overheating, significantly shortening their lifespan and increasing maintenance costs; secondly, the massive amounts of video data generated by continuous recording pose a huge challenge to the capacity and performance of storage devices, significantly increasing the complexity of data storage, retrieval, and management. For low-voltage electrical engineering projects in a stable operating period that do not require frequent maintenance and repairs, the actual effectiveness of 24 / 7 monitoring is greatly reduced—cameras mostly capture images without abnormalities, and the effective working time for recording key events is extremely low. Therefore, the traditional camera operating mode is no longer suitable for the actual monitoring needs of such low-voltage electrical engineering projects, and a more intelligent and efficient solution is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a protective device for intelligent low-voltage engineering cameras to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A protective device for an intelligent low-voltage engineering camera includes an outer protective shell installed on the outside of the camera body, a protective mechanism provided at the gap between the camera body and the outer protective shell, a buzzer connected to the outer wall of the outer protective shell, a relay module provided inside the camera body, and a vibration sensing mechanism provided on the outer wall of the camera body.

[0007] The outer wall of the camera body is also provided with a trigger, and the trigger is provided with a second touch button. The second touch button is electrically connected to the protective mechanism and controls the unfolding state of the protective mechanism. The top of the vibration sensing mechanism is provided with a first touch button, which is electrically connected to the camera body and controls the operation of the camera body.

[0008] Preferably, the vibration sensing mechanism includes a limiting cylinder, a guide rail, and a vibration sensing component. The vibration sensing component includes two swing rods, a top rod, and a hinge seat. One end of each swing rod and the top rod is rotatably connected to the hinge seat. The top rod is slidably connected to the limiting cylinder. A second balance spring is connected between the top end of the top rod and the limiting cylinder. A rotating block is slidably connected to the outer wall of the swing rod. A first balance spring is connected between the end of the swing rod and the rotating block. A guide block is slidably connected inside the guide rail. The rotating block is rotatably connected to the guide block.

[0009] Preferably, the protective mechanism includes a top frame and a folding plate. Both ends of the top frame are provided with side frames. The surface of the side frame is provided with a straight groove, and the bottom end of the side frame is provided with an arc-shaped groove. One end of the arc-shaped groove is connected to the straight groove, and the straight groove is slidably connected to a movable component.

[0010] Preferably, the movable component includes a bending frame, a first connecting rod, and a second connecting rod. One end of the first connecting rod and the second connecting rod are rotatably connected, and the other end of the second connecting rod is fixedly connected to a second transmission shaft. The other end of the first connecting rod is fixedly connected to the first transmission shaft. The first transmission shaft is rotatably connected to the bending frame. A limit block is rotatably connected to the outer wall of the bending frame. The outer wall of the limit block is slidably connected to a straight groove. An extension groove is formed at the bottom end of the straight groove. The second transmission shaft is slidably connected to the extension groove, and the first transmission shaft is slidably connected to an arc-shaped groove.

[0011] Preferably, the two connecting rods are connected to the same transmission shaft, and a tension spring for resetting the protective mechanism is provided between the top frame and the transmission shaft.

[0012] Preferably, the inner wall of the side frame is fixedly connected to a limiting rail, the inner side of the side frame is provided with a sliding block, the surface of the sliding block is provided with a limiting groove, the limiting rail is slidably connected to the limiting groove, the top of the sliding block is provided with a circular groove, the bottom of the top frame is provided with an electric telescopic cylinder, and the output end of the electric telescopic cylinder is fixedly connected to the circular groove.

[0013] Preferably, T-shaped rails are fixedly connected to both outer walls of the camera body, the top frame is slidably connected to the T-shaped rails, and one end of the folding plate is fixedly connected to the bending frame.

[0014] Preferably, a magnetic connecting plate is fixedly connected between the two top frames, and an electromagnet is provided on the outer side wall of the camera body. The height position of the protective mechanism is controlled by the magnetic attraction force of the electromagnet on the magnetic connecting plate. A bracket for connecting the low-voltage cabinet is provided on the top of the camera body.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention changes the traditional 24 / 7 uninterrupted monitoring mode for low-voltage engineering. Through the cooperation of a vibration sensing mechanism and a relay module, the camera only switches from standby to active monitoring mode when the cabinet door is pulled and vibrates. After the cabinet sends a low-voltage signal with a delay, if no subsequent operation is detected, the relay module controls the camera to reset to standby mode, avoiding prolonged high-load operation, effectively reducing equipment overheating, extending camera lifespan, lowering maintenance costs, reducing unnecessary video recording, alleviating pressure on storage devices, and improving data management efficiency.

[0017] 2. In this invention, the device can accurately identify vibration signals during the operation of the low-voltage cabinet, prompting the camera to work only when there is operation activity in the low-voltage cabinet. Compared with the traditional mode of continuously recording a large number of abnormal images, it can significantly increase the effective working time of the camera in recording key events, allowing monitoring resources to be concentrated on the moment when they are really needed, accurately capturing key images in the low-voltage engineering operation process, improving the actual monitoring efficiency, and better adapting to the monitoring needs of the camera under normal conditions.

[0018] 3. In this invention, the protective mechanism consists of a top frame, a folding plate, etc. When the camera body is not used for a long time, the folding plate can horizontally cover the bottom of the camera body or vertically cover the side wall to protect the lens and control panel, preventing dust from affecting the camera function. Furthermore, the vibration sensing mechanism triggers the electric telescopic cylinder to control the movement of the folding plate, thereby achieving intelligent automatic protection.

[0019] 4. In this invention, the internal relay module senses the low-voltage current signal sent from the low-voltage cabinet to the camera body. If the cabinet door is touched or vibrated externally, a signal is sent after a delay. After receiving the signal, the relay module controls the protection mechanism to reset and the camera body to standby mode, preventing accidental touch from causing the equipment to continue working. If no signal is received, it indicates that there may be malicious damage, triggering the buzzer alarm. The electromagnet is energized to attract the magnetic connection plate to house the protection mechanism, maintaining the operation of the camera body, recording abnormal operations, and ensuring the safety of the low-voltage engineering. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the rear sidewall structure of the camera body in this invention;

[0023] Figure 4 This is a schematic diagram of the protective mechanism in this invention;

[0024] Figure 5 This is a partial structural breakdown diagram of the protective mechanism in this invention;

[0025] Figure 6 This is a schematic diagram of the side frame structure in this invention;

[0026] Figure 7 This is a schematic diagram of the sliding block in this invention;

[0027] Figure 8 This is a schematic diagram of the structure of the active component in this invention;

[0028] Figure 9 For the present invention Figure 4 Enlarged view of the local structure at point A;

[0029] Figure 10 This is a schematic diagram of the vibration sensing mechanism in the present invention. Figure 1 ;

[0030] Figure 11 This is a schematic diagram of the vibration sensing mechanism in the present invention. Figure 2 ;

[0031] Figure 12 This is a flowchart of the main engineering process of the camera of the present invention;

[0032] Figure 13 This is a flowchart illustrating the operation of the relay module of the present invention.

[0033] In the diagram: 1. Camera body; 2. Outer protective shell; 3. Protective mechanism; 31. Top frame; 32. Folding plate; 33. Side frame; 331. Limiting rail; 332. Straight groove; 333. Arc groove; 334. Extension groove; 34. Movable component; 341. Bending frame; 342. Link 1; 343. Link 2; 344. Drive shaft 1; 345. Drive shaft 2; 346. Limiting block; 35. Electric telescopic cylinder; 36. Sliding block; 361. Limiting groove; 362. Circular groove; 4. Bracket; 5. Buzzer; 6. T-rail; 7. Magnetic connecting plate; 8. Vibration sensing mechanism; 81. Limiting cylinder; 82. Guide rail; 820. Guide block; 83. Vibration sensing component; 831. Swing rod; 832. Balance spring one; 833. Top rod; 834. Balance spring two; 835. Rotating block; 836. Hinge seat; 84. Touch button one; 9. Trigger; 90. Touch button two. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Refer to Figure 1-13 As shown: A protective device for an intelligent low-voltage engineering camera includes an outer protective shell 2. The outer protective shell 2 is fixedly installed on the outside of the camera body 1 via a connecting rod. A gap is left between the camera body 1 and the outer protective shell 2. The camera body 1 is installed on the outer wall of the low-voltage cabinet. A protective mechanism 3 is provided at the gap between the camera body 1 and the outer protective shell 2. A buzzer 5 is fixedly connected to the outer wall of the outer protective shell 2.

[0036] A vibration sensing mechanism 8 is provided on the outer wall of the camera body 1. The vibration sensing mechanism 8 includes a vibration sensing component 83. A limiting cylinder 81 is provided at the top of the vibration sensing component 83, and guide rails 82 are provided on both sides of the vibration sensing component 83. The limiting cylinder 81 and the guide rails 82 are fixedly connected to the outer wall of the camera body 1. The vibration sensing component 83 includes a swing rod 831, a top rod 833, and a hinge seat 836. One end of the swing rod 831 is rotatably connected to the hinge seat 836, the bottom end of the top rod 833 is rotatably connected to the hinge seat 836, the top end of the top rod 833 is slidably connected to the limiting cylinder 81, and a balance spring 834 is fixedly connected between the end of the top rod 833 and the limiting cylinder 81. The outer wall of the moving rod 831 is provided with a balance spring 832. The outer wall of the swing rod 831 is slidably connected with a rotating block 835. The end of the swing rod 831 and the rotating block 835 are fixedly connected with a balance spring 832. The inner wall of the guide rail 82 is slidably connected with a guide block 820. The rotating block 835 and the guide block 820 are rotatably connected. The outer wall of the camera body 1 is provided with a trigger 9. The inside of the trigger 9 is provided with a touch button 90. The top of the limit cylinder 81 is provided with a touch button 84. The touch button 84 is used to control the operation of the camera body 1. The protective mechanism 3 is used to protect the bottom camera of the camera body 1. The touch button 90 is used to control the unfolding state of the protective mechanism 3.

[0037] In this embodiment, the camera body 1 is installed on the low-voltage cabinet of the corresponding low-voltage project. Each time operation is required, pulling the cabinet door causes the low-voltage cabinet to vibrate. The monitoring function of the camera body 1 is combined with the vibration perception of the environment. A vibration sensing mechanism 8 is set outside the camera body 1. The vibration sensing component 83 is suspended between the limiting cylinder 81 and the two guide rails 82. None of the three ends of the vibration sensing component 83 are rigidly connected. When the vibration effect is transmitted from the low-voltage cabinet to the limiting cylinder 81 and the guide rails 82, the vertical vibration is consumed by the movement of the top rod 833, and the horizontal vibration is consumed by the movement of the swing rod 831. The movement effects of the swing rod 831 and the top rod 833 are mutually transformed, which causes the vibration sensing component 83 to move unbalancedly. The movement of the swing rod 831 and the top rod 833 can trigger the second touch button 90 and the first touch button 84 to switch, respectively. The positions of the swing rod 831 and the top rod 833 are balanced by the action of the second balance spring 834 and the first balance spring 832, respectively.

[0038] When not affected by vibration, the upward elastic force of the second balance spring 834 cancels out the weight of the vibration sensing component 83, and both swing rods 831 swing to the horizontal position. When subjected to vibration energy, the energy of the vertical vibration drives the top rod 833 to move up and down, and pushes the position of the hinge seat 836 to move up and down, thereby driving the swing rod 831 to swing. The energy of the horizontal vibration is absorbed by the first balance spring 832 during the swing of the swing rod 831. The two vibration energies are superimposed and increase the amplitude of the vibration sensing component 83's movement, enabling it to successfully trigger the switches of the first touch button 84 and the second touch button 90. The first touch button 84 can turn on the working switch of the camera body 1 to monitor the low-voltage engineering below. The second touch button 90 can drive the flip plate 32 to flip ninety degrees and move upward, thereby storing the protective mechanism 3 outside the camera body 1, ensuring that the camera body 1 always operates normally and records downwards.

[0039] Example 2: According to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the protective mechanism 3 includes a top frame 31 and a folding plate 32. Both ends of the top frame 31 are provided with side frames 33. Straight grooves 332 are formed on the surface of the side frames 33, and arc-shaped grooves 333 are formed at the bottom of the side frames 33. One end of the arc-shaped groove 333 communicates with the straight groove 332. A movable component 34 is provided on the side of the side frame 33. The movable component 34 includes a bending frame 341, a first connecting rod 342, and a second connecting rod 343. One end of the first connecting rod 342 and the second connecting rod 343 are rotatably connected. One end of the second connecting rod 343 is fixedly connected to a second transmission shaft 345. The two second connecting rods 343 are connected through the second transmission shaft 345. A tension spring is provided between the top frame 31 and the second transmission shaft 345. The tension spring is used for resetting the protective mechanism 3. One end of the first connecting rod 342 is fixedly connected to the second connecting rod 343. A drive shaft 344 is fixedly connected to a bending frame 341. A limit block 346 is rotatably connected to the outer wall of the bending frame 341. The outer wall of the limit block 346 is slidably connected to a straight groove 332. An extension groove 334 is opened downward at the bottom end of the straight groove 332. A drive shaft 345 is slidably connected to the extension groove 334. A drive shaft 344 is slidably connected to an arc groove 333. A limit rail 331 is fixedly connected to the inner wall of the side frame 33. The inner side of the side frame 33 is provided with a sliding block 36, and the surface of the sliding block 36 is provided with a limiting groove 361. The limiting rail 331 is slidably connected to the limiting groove 361. The top of the sliding block 36 is provided with a circular groove 362. The bottom of the top frame 31 is provided with an electric telescopic cylinder 35. The output end of the electric telescopic cylinder 35 is fixedly connected to the circular groove 362. T-shaped rails 6 are fixedly connected to both outer walls of the camera body 1. The top frame 31 is slidably connected to the T-shaped rails 6. One end of the folding plate 32 is fixedly connected to the bending frame 341.

[0040] In this embodiment, when the camera body 1 is not used for a long time, the lens of the camera body 1 is exposed to the air and is prone to dust accumulation, which affects the normal recording function. Two protective mechanisms 3 are set at the bottom of the camera body 1. The protective mechanism 3 is composed of a top frame 31 and two side frames 33. The position can be changed by the free movement of the folding plate 32. The folding plate 32 can be horizontally covered at the bottom of the camera body 1. The two folding plates 32 can completely cover the entire space under the camera body 1. The folding plate 32 can be rotated 90 degrees to vertically cover the side wall of the camera body 1, protecting the control panel on the side wall of the camera body 1.

[0041] The folding principle of the folding plate 32 is as follows: When the folding plate 32 is located in the upper part of the straight groove 332, the first drive shaft 344, the limit block 346, and the second drive shaft 345 are all located inside the straight groove 332 and arranged in sequence. At this time, the first drive shaft 344 and the second drive shaft 345 are completely on the same straight line. The folding plate 32 is vertically stored on the side wall of the camera body 1. After the swing rod 831 sweeps past the second touch button 90, the second touch button 90 controls the electric telescopic cylinder 35 to start running and push the sliding block 36 to move downward. The sliding block 36 drives the bending frame 341 to move downward. The first drive shaft 344, the limit block 346, and the second drive shaft 345 continue to slide down along a straight trajectory until the limit block 346 contacts the bottom of the straight groove 332. Since the size of the extension groove 334 is smaller than that of the straight groove 332, the limit block 346 cannot... As the device continues to slide downwards, the output end of the sliding block 36 continues to push the bending frame 341 downwards. After the second transmission shaft 345 slides to the bottom of the extension groove 334, the first transmission shaft 344 continues to move downwards in the straight groove 332. The distance between the first transmission shaft 344 and the second transmission shaft 345 shortens, causing the second connecting rod 343 and the first connecting rod 342 to fold together, thereby driving the bending frame 341 to tilt and deflect, causing the bending frame 341 to rotate around the limit block 346, causing the first transmission shaft 344 to slide in the arc groove 333. When the first transmission shaft 344 slides to the bottom of the arc groove 333, the corresponding rotation angle of the bending frame 341 is ninety degrees. At this time, the bending frame 341 will also drive the flip plate 32 to rotate ninety degrees. In summary, after pushing the flip plate 32 to the bottom of the camera body 1, continuing to push it out will cause the flip plate 32 to flip and cover the bottom of the camera body 1.

[0042] Example 3: According to Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 13As shown, a bracket 4 is provided at the top of the camera body 1, and the camera body 1 is movably mounted on the outer wall of the low-voltage cabinet via the bracket 4. A magnetic connecting plate 7 is fixedly connected between the two top frames 31. An electromagnet is provided on the outer wall of the camera body 1. Sufficient current is passed through the electromagnet to give it a strong magnetic force, enabling it to act on the magnetic connecting plate 7 at its lowest position. Buffer mechanisms are added at both ends of the magnetic connecting plate 7. When the magnetic connecting plate 7 approaches the electromagnet, the compressed spring inside the buffer mechanism dissipates the strong upward impact force of the magnetic connecting plate 7, thereby controlling the height position of the protective mechanism 3 through the magnetic attraction force of the electromagnet on the magnetic connecting plate 7. A relay module is provided inside the camera body 1 to sense the weak current signal emitted from the low-voltage cabinet extending towards the camera body 1.

[0043] In this embodiment, when the cabinet door of the low-voltage cabinet is subjected to external contact and vibration, the two protective mechanisms 3 retract upwards, removing the obstruction of the lens of the camera body 1, and the camera body 1 changes from standby state to working state. External contact may be accidental. A relay module is set inside the camera body 1. The relay module consists of two control relays and one time relay. One of the control relays has normally closed contacts and is connected in series with the time relay. The other control relay has normally open contacts. After a delay of 5 to 30 minutes, the low-voltage cabinet sends a low-voltage signal to the camera body 1. The time set of the time relay is consistent with the time interval of the low-voltage cabinet sending the low-voltage signal.

[0044] If the external contact is accidental, the internal current signal of the low-voltage system will not be affected, and the low-voltage cabinet can send low-voltage signals to the relay normally. After receiving the low-voltage signal, the first control relay disconnects the control circuit current and disconnects the control signal of the time relay. The camera body 1 is in standby mode. After receiving the low-voltage signal, the second control relay connects to the contact. This control relay drives the output end of the electric telescopic cylinder 35 to return. At this time, the tension spring is applied to the transmission shaft 345, and the tension of the tension spring is used to reset the protective mechanism 3.

[0045] If the low-voltage electrical system is under maintenance, the staff will partially or completely cut off the power supply to the system. If the low-voltage signal is used to detect the operating status of various components within the system, and some circuits are abnormal, no low-voltage signal will be emitted. Since there is no low-voltage signal, the first control relay is in a normally closed state, causing the time relay to operate normally. The time relay controls the alarm of the buzzer 5, the continuous operation of the camera body 1, and the energization of the electromagnet. The magnetic connection plate 7 is attracted upward by magnetic attraction. At this time, the protective mechanism 3 is completely retracted, and the alarm of the buzzer 5 is triggered to remind the monitoring personnel that there may be malicious damage to the low-voltage electrical system, thus realizing the monitoring and protection function.

[0046] The protective working process of this invention is as follows:

[0047] Step 1: The camera body is in standby mode;

[0048] Step 2: External operation causes vibration, triggering the vibration sensing mechanism to vibrate, causing the two swing rods to swing. The swing rods sweep across the second touch button to trigger the switch. After the second touch button is triggered, the flip plate moves away from the protective part of the camera lens. The vibration causes the top rod to move up and down. The top rod pushes upward to trigger the first touch button switch, and the camera body starts to work normally, enabling the camera body to perform low-voltage engineering monitoring.

[0049] Step 3: The low-voltage cabinet sends a low-voltage signal to the camera body after a delay. The relay module receives the low-voltage signal, controls the protection mechanism to reset and perform protection again, so that the camera body is back in standby mode.

[0050] If the relay module does not receive a weak current signal, it triggers the buzzer alarm and simultaneously connects the electromagnet to control the protective mechanism to retract upwards, maintaining the camera body in a long-term working state and recording external operations in the weak current cabinet.

[0051] Step 4: Based on the received results, make a judgment instruction to keep the camera working, trigger an alarm, or reset it to standby mode.

[0052] Additional debugging and optimization instructions: In practical applications, the delay time for the low-voltage cabinet to send low-voltage signals to the camera body 1 can also be flexibly set within the range of 5 to 30 minutes according to actual needs, so that the working logic of the protection device is more compatible with the operating habits and safety requirements of low-voltage engineering.

[0053] Expanding application scenarios: This protective device is not only suitable for monitoring conventional low-voltage cabinets, but also for special low-voltage engineering scenarios with high security requirements and low personnel operation frequency, such as unattended outdoor base station low-voltage facilities and core low-voltage equipment in important data centers. This device can reduce equipment wear and storage pressure while accurately monitoring and providing timely warnings of abnormal operations, greatly improving the security protection level of low-voltage engineering projects.

[0054] Enhanced performance advantages: Compared with traditional all-weather monitoring cameras for low-voltage engineering, this device, through intelligent vibration triggering and delay judgment mechanism, has, through actual testing, reduced the invalid working time of the camera body 1, extended the equipment maintenance cycle, reduced the data storage pressure of the storage device, and significantly improved the overall operating efficiency and economic benefits of the low-voltage engineering monitoring system.

[0055] The device's operation and working principle are as follows: The camera body 1 is installed on the outer wall of the low-voltage cabinet. A protective mechanism 3 is installed between the outer protective shell 2 and the camera body 1. A buzzer 5 is located on the outside of the outer protective shell 2, and a vibration sensing mechanism 8 is installed on the outside of the camera body 1. When the cabinet door is pulled, vibration is generated. This vibration is transmitted to the limit cylinder 81 and guide rail 82, causing the top rod 833 and swing rod 831 to move. The top rod 833 triggers touch button 1 84 to start the camera body 1. The swing rod 831 triggers touch button 2 90, controlling the electric telescopic cylinder 35 to move the folding plate 32 from the protective position, exposing the camera for monitoring. After a delay, the low-voltage cabinet sends a low-voltage signal. The relay module receives the signal and judges whether it is received. If the signal is received, the protective mechanism 3 is reset, and the camera body 1 is in standby mode. If no signal is received, the buzzer 5 is triggered to sound an alarm. The electromagnet is energized to attract the magnetic connecting plate 7, causing the protective mechanism 3 to retract upwards, maintaining the camera body 1's operation for a long time and recording the external operation of the low-voltage cabinet.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective device for an intelligent low-voltage engineering camera, comprising an outer protective shell (2) installed on the outside of the camera body (1), characterized in that: A protective mechanism (3) is provided at the gap between the camera body (1) and the outer protective shell (2). A buzzer (5) is connected to the outer side wall of the outer protective shell (2). A relay module is provided inside the camera body (1). A vibration sensing mechanism (8) is provided on the outer side wall of the camera body (1). The outer wall of the camera body (1) is also provided with a trigger (9), and the trigger (9) is provided with a second touch button (90). The second touch button (90) is electrically connected to the protective mechanism (3). The second touch button (90) controls the unfolded state of the protective mechanism (3). The top of the vibration sensing mechanism (8) is provided with a first touch button (84). The first touch button (84) is electrically connected to the camera body (1). The first touch button (84) controls the operation of the camera body (1). The vibration sensing mechanism (8) includes a limiting cylinder (81), a guide rail (82), and a vibration sensing component (83). The vibration sensing component (83) includes two swing rods (831), a top rod (833), and a hinge seat (836). One end of each swing rod (831) and top rod (833) is rotatably connected to the hinge seat (836). The top rod (833) is slidably connected to the limiting cylinder (81). A second balance spring (834) is connected between the top end of the top rod (833) and the limiting cylinder (81). A rotating block (835) is slidably connected to the outer wall of the swing rod (831). A first balance spring (832) is connected between the end of the swing rod (831) and the rotating block (835). A guide block (820) is slidably connected inside the guide rail (82). The rotating block (835) is rotatably connected to the guide block (820).

2. The protective device for an intelligent low-voltage engineering camera according to claim 1, characterized in that: The protective mechanism (3) includes a top frame (31) and a folding plate (32). Both ends of the top frame (31) are provided with side frames (33). The surface of the side frame (33) is provided with a straight groove (332). The bottom end of the side frame (33) is provided with an arc groove (333). One end of the arc groove (333) is connected to the straight groove (332). The straight groove (332) is slidably connected to a movable component (34).

3. The protective device for an intelligent low-voltage engineering camera according to claim 2, characterized in that: The active component (34) includes a bending frame (341), a first connecting rod (342) and a second connecting rod (343). One end of the first connecting rod (342) and the second connecting rod (343) are rotatably connected. The other end of the second connecting rod (343) is fixedly connected to a second transmission shaft (345). The other end of the first connecting rod (342) is fixedly connected to a first transmission shaft (344). The first transmission shaft (344) is rotatably connected to the bending frame (341). A limit block (346) is rotatably connected to the outer wall of the bending frame (341). The outer wall of the limit block (346) is slidably connected to a straight groove (332). An extension groove (334) is opened downward at the bottom end of the straight groove (332). The second transmission shaft (345) is slidably connected to the extension groove (334). The first transmission shaft (344) is slidably connected to the arc groove (333).

4. The protective device for an intelligent low-voltage engineering camera according to claim 3, characterized in that: The two connecting rods (343) are connected to the same transmission shaft (345), and a tension spring for resetting the protective mechanism (3) is provided between the top frame (31) and the transmission shaft (345).

5. The protective device for an intelligent low-voltage engineering camera according to claim 3, characterized in that: The inner wall of the side frame (33) is fixedly connected to a limiting rail (331). The inner side of the side frame (33) is provided with a sliding block (36). A limiting groove (361) is opened on the surface of the sliding block (36). The limiting rail (331) is slidably connected to the limiting groove (361). A circular groove (362) is opened at the top of the sliding block (36). An electric telescopic cylinder (35) is provided at the bottom of the top frame (31). The output end of the electric telescopic cylinder (35) is fixedly connected to the circular groove (362).

6. The protective device for an intelligent low-voltage engineering camera according to claim 2, characterized in that: The camera body (1) has T-shaped rails (6) fixedly connected to both outer walls. The top frame (31) is slidably connected to the T-shaped rails (6). One end of the folding plate (32) is fixedly connected to the bending frame (341).

7. The protective device for an intelligent low-voltage engineering camera according to claim 6, characterized in that: A magnetic connecting plate (7) is fixedly connected between the two top frames (31). An electromagnet is provided on the outer side wall of the camera body (1). The height position of the protective mechanism (3) is controlled by the magnetic attraction force of the electromagnet on the magnetic connecting plate (7). A bracket (4) for connecting the weak current cabinet is provided above the top of the camera body (1).

Images