A height adjustable monitoring device

Abstract

The utility model relates to a height adjustable monitoring device, aims at solving the technical problem that the height locking mechanism of part monitor is complicated and unstable, part power driven locking mechanism needs to be powered continuously, and the power consumption is more, and it includes the adjusting frame and the vertical board, the surface central fixed connection of vertical board has the vertically arranged ratchet bar, the vertical board surface fixed connection has the magnetic attraction piece opposite one side of ratchet bar, the adjusting frame inboard wall fixed connection has the electromagnet of magnetic attraction piece horizontal height correspondence, the adjusting frame between upper and lower inboard wall of vertical board one side rotatably connected has the lead screw, the surface of lead screw is through the lifting block and is connected with the lifting block screw thread, the surface fixed connection of lifting block one side to vertical board has the fixed plate, the fixed plate lateral wall fixed connection has the ratchet wheel, the adjusting frame bottom fixed connection has the servo motor of lead screw just below, the utility model locking mechanism simple structure, need not always power on to guarantee the locking of lead screw, has saved the electric power, has saved the energy.

Description

Technical Field

[0001] This utility model relates to the field of public safety monitoring technology, specifically a highly adjustable monitoring device. Background Technology

[0002] With the acceleration of urbanization and the rapid development of technology, the complexity and diversity of public safety monitoring systems are constantly increasing. From traditional analog monitoring to today's digital, networked, and intelligent monitoring, technological innovation has not only improved the clarity and real-time performance of monitoring, but also placed higher demands on the performance of monitoring equipment. The flexibility of its installation location, angle, and height directly affects the quality of monitoring. Traditional public safety monitors adopt a fixed installation method, and their rigid limitations on height and viewing angle lead to insufficient adaptability and difficulty in coping with complex and ever-changing scenario requirements.

[0003] While some monitors on the market have height adjustment functions, their adjustment mechanisms have significant flaws: most monitors rely on complex mechanical locking structures to fix the height, which is cumbersome to operate and requires manual operation on-site. Other height adjustment systems based on motors require continuous power to maintain the position of the lead screw, which not only leads to unnecessary energy waste.

[0004] For example, when using a threaded locking device, manual operation of a knob or wrench is required to fix the position, which is inefficient and prone to loosening; while motor-driven systems require the servo motor to be powered on for a long time to maintain the position of the lead screw, resulting in energy waste and shortened equipment life. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a highly adjustable monitoring device to solve the technical problems of cumbersome height locking mechanisms in some current monitors and the fact that some electrically driven locking mechanisms require continuous power supply, which consumes a lot of electricity.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a height-adjustable monitoring device is designed, including an adjustment frame and a vertical plate. A vertically arranged ratchet is fixedly connected to the center of the surface of the vertical plate. A magnetic absorbing piece is fixedly connected to the surface of the vertical plate on the opposite side of the ratchet. An electromagnet is fixedly connected to the inner wall of the adjustment frame corresponding to the horizontal height of the magnetic absorbing piece. A lead screw is rotatably connected between the upper and lower inner walls of the adjustment frame on one side of the vertical plate. A lifting block passes through the surface of the lead screw and is threadedly connected to the lifting block. A fixing plate is fixedly connected to the surface of the lifting block facing the vertical plate. A ratchet is fixedly connected to the side wall of the fixing plate. A servo motor is fixedly connected to the bottom of the adjustment frame directly below the lead screw.

[0007] In this solution, the electromagnet and servo motor are energized simultaneously, causing the lead screw to rotate. The electromagnet attracts the vertical plate closer, causing the vertical plate and its surface ratchet rack to move away from the ratchet. Once the height adjustment is complete, the electromagnet and servo motor are de-energized simultaneously, the vertical plate loses its attraction and moves towards the ratchet. The ratchet rack locks the ratchet, thus achieving position locking and ensuring the stability of the current height. The servo motor also does not need to be continuously energized to ensure the lead screw is locked, saving electricity and energy.

[0008] Preferably, each of the four corners of the vertical plate is pierced by a sliding rod and slidably connected to the sliding rod. The sliding rod is fixedly connected between the inner side walls of the adjustment frame, and a compression spring is sleeved on the surface of the sliding rod on one side of the magnetic absorbing piece.

[0009] In practical applications, the slide bar serves to limit the vertical plate. The vertical plate slides along the slide bar, which can ensure that it is always vertical and stable, and prevent the ratchet rack from disengaging from the ratchet wheel due to tilting.

[0010] Preferably, the top end of the lead screw passes through the surface of the adjustment frame and is fixedly connected to the top cap. The lead screw is rotatably connected to the adjustment frame through a bearing seat. Two protrusions are fixedly connected to the outer side wall of the top cap. The tail end of the drive shaft of the servo motor is fixedly connected to the bottom end of the lead screw.

[0011] In practical applications, the two protrusions on the top cap act as pushers on the inner side of the lifting gear, so that the lifting gear can rotate together during rotation.

[0012] Preferably, a top frame is fixedly connected to the top of the adjustment frame on one side of the top cap, an electric push rod is fixedly connected to the lower surface of the top of the top of the top frame, a mounting plate is fixedly connected to the telescopic end of the electric push rod, a lifting gear is rotatably connected to the bottom of the mounting plate, the lifting gear is located directly above the top cap, and a telescopic frame is fixedly connected to the surface of the top frame on one side of the electric push rod, the telescopic end of the telescopic frame is fixedly connected to the telescopic end of the electric push rod.

[0013] In practical applications, the electric actuator drives the mounting plate and lifting gear to move up and down, and the telescopic frame can play a role in resisting bending, so that the electric actuator can be protected when it is subjected to lateral force.

[0014] Preferably, the bottom center of the lifting gear has a central groove, the inner side wall of the central groove has two opposing side grooves, the inner side of the side groove is vertically slidably connected to a lever, and a return spring is fixedly connected between the lever and the inner top of the side groove.

[0015] In practical applications, the pusher is pushed by the protrusion, which in turn drives the lifting gear to rotate. The pusher also has the ability to slide vertically, which prevents the top cap and protrusion from entering the center groove when aligned with the protrusion, thus ensuring the normal insertion of the top cap.

[0016] Preferably, a lifting rod is rotatably connected to the top of the adjusting frame on one side of the lifting gear, and several long racks are fixedly connected to the outer surface of the lifting rod in a circumferential array, and the lifting gear meshes with the long racks.

[0017] In practical applications, the top of the boom is connected to the ceiling or mounting hardware, while the boom itself remains stationary. The long rack on its surface ensures that it is always engaged with the lifting gear, preventing the lifting gear from disengaging during the lifting process.

[0018] Preferably, the side wall of the adjustment frame is provided with a vertical groove, and a monitoring head is fixedly connected to the side surface of the lifting block facing the vertical groove, and the monitoring head is located on the outside of the adjustment frame.

[0019] In practical applications, the monitoring head moves up and down along the vertical groove to adjust its height and change the viewing angle.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. In this invention, during height adjustment, the electromagnet and servo motor are simultaneously energized, the lead screw rotates, and the electromagnet attracts the vertical plate closer, causing the vertical plate and its surface ratchet to move away from the ratchet, thus releasing the lock. When the height adjustment is complete, the electromagnet and servo motor are simultaneously de-energized, the vertical plate loses its attraction and moves towards the ratchet, and the ratchet re-locks the ratchet. The structure is simple, the locking effect is stable, no manual operation is required on-site, and the servo motor does not need to be continuously energized to ensure the lead screw is locked, saving electricity and energy.

[0022] 2. This utility model sets a top cap and a lifting gear at the top of the lead screw. When the top cap is inserted into the lifting gear, it can drive the lifting gear to rotate. During the rotation, the entire adjustment frame rotates along the suspension rod, thereby adjusting the left and right angles. When no angle adjustment is needed, the lifting gear can also rise and disengage from the top cap, thus realizing the height and left and right angle adjustment of a single lead screw, improving the practicality and convenience of the device. Attached Figure Description

[0023] Figure 1 This is an overall view of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the lifting gear structure of this utility model;

[0027] Figure 5 This is a partial enlarged view of point A of this utility model;

[0028] In the diagram: 1. Adjustment frame; 101. Vertical slot; 2. Lead screw; 201. Lifting block; 202. Servo motor; 3. Fixing plate; 301. Ratchet; 4. Slide rod; 401. Compression spring; 5. Vertical plate; 501. Ratchet; 502. Magnetic plate; 6. Electromagnet; 7. Top cap; 701. Protrusion; 8. Top frame; 801. Telescopic frame; 9. Electric push rod; 10. Mounting plate; 11. Lifting gear; 111. Center slot; 112. Side slot; 113. Return spring; 114. Pulley; 12. Hanging rod; 121. Long rack; 13. Monitoring head. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Example 1: A height-adjustable monitoring device, see [link to example]. Figures 1 to 5 The system includes an adjustment frame 1 and a vertical plate 5. A vertically arranged ratchet rack 501 is fixedly connected to the center of the surface of the vertical plate 5. A lead screw 2 is rotatably connected between the upper and lower inner walls of the adjustment frame 1 on one side of the vertical plate 5. A lifting block 201 passes through the surface of the lead screw 2 and is threadedly connected to the lifting block 201. A fixing plate 3 is fixedly connected to the side surface of the lifting block 201 facing the vertical plate 5. A ratchet wheel 301 is fixedly connected to the side wall of the fixing plate 3. The protrusion of the ratchet rack 501 is obliquely upward, while the protrusion of the ratchet wheel 301 on the side surface near the ratchet rack 501 is obliquely downward. Therefore, when the ratchet rack 501 is close to the ratchet wheel 301, the ratchet wheel 301 can be adjusted. With the ratchet 301 and lifting block 201 in place, they cannot descend, thus achieving a limit lock and ensuring that the monitoring head 13 remains stably in its current position. At the same time, the servo motor 202 can be de-energized normally, without needing to maintain the locking of the lead screw 2, saving power and energy. The side wall of the adjustment frame 1 has a vertical groove 101. The monitoring head 13 is fixedly connected to the side surface of the lifting block 201 facing the vertical groove 101. The monitoring head 13 is located on the outside of the adjustment frame 1. The lead screw 2 rotates under the drive of the servo motor 202, thereby driving the lifting block 201 and the monitoring head 13 to move up and down along the vertical groove 101 to adjust the height.

[0031] It should be noted that the monitoring head 13 is equipped with power supply and network cable interfaces. It focuses external light onto the image sensor through the lens. The image sensor converts the received light signal into an electrical signal. These electrical signals are then processed into digital image data. Next, the digital signal processor optimizes the image data. Then, the encoding and compression chip compresses the processed image data into a specific format to reduce the data volume. Finally, the compressed video data is transmitted to the cloud or storage device in the control room through the network interface for easy storage and real-time viewing. The monitoring head 13 here is a common model on the market and can be purchased normally, so its internal structure and equipment will not be described in detail.

[0032] Specifically, such as Figure 2 As shown, the vertical plate 5 is slidably connected to the four corners of the surface by the slide rods 4. The slide rods 4 are fixedly connected to the inner sidewalls of the adjustment frame 1. A compression spring 401 is sleeved on the surface of the slide rod 4 on one side of the magnetic suction piece 502. Under the action of the compression spring, the vertical plate 5 is pushed to move towards the ratchet 301, so that the ratchet rack 501 can contact the ratchet 301. Under the constraint of the four slide rods 4, the vertical plate 5 will maintain a vertical state and move laterally to avoid tilting.

[0033] Specifically, such as Figure 3 As shown, a magnetic absorbing piece 502 is fixedly connected to the surface of the vertical plate 5 on the opposite side of the ratchet 501. The magnetic absorbing piece 502 is an iron sheet. An electromagnet 6 is fixedly connected to the inner wall of the adjustment frame 1 corresponding to the horizontal height of the magnetic absorbing piece 502. The electromagnet 6 and the servo motor 202 are located in the same circuit. The two are energized at the same time or de-energized at the same time. When height adjustment is required, the electromagnet 6 is energized, attracting the magnetic absorbing piece 502 on the surface of the vertical plate 5, thereby moving the vertical plate 5 away from the ratchet 301, releasing the ratchet 301, and causing the lifting block 201 and the ratchet 301 to move up and down. When the height adjustment is completed, the electromagnet 6 is de-energized. At this time, the vertical plate 5 loses its attraction and will move back towards the ratchet 301 under the push of the compression spring 401. The ratchet 501 locks the ratchet 301 again, completing the limit lock and ensuring the stability of the monitoring head 13.

[0034] It's worth noting that the electromagnet 6 mainly consists of a coil and an iron core. When current flows through the coil, a magnetic field is generated inside the coil. This magnetic field magnetizes the iron core, generating a strong magnetic force to attract or release objects. Currently, the technology for electromagnet 6 is quite mature and the cost is very low. Various models and sizes of electromagnet 6 are available on the market. The electromagnet 6 mentioned here can be a circular electromagnet, such as the Langshuo DC chuck circular electromagnet 6. Therefore, its specific working principle and internal structure will not be elaborated further. Furthermore, the electromagnet 6 and the servo motor 202 are in the same circuit, and they can be simultaneously energized or de-energized through a series circuit, thus achieving simultaneous height adjustment and unlocking.

[0035] Furthermore, such as Figure 1 and Figure 5As shown, a lifting gear 11 is rotatably connected to the bottom of the mounting plate 10. The lifting gear 11 is located directly above the top cap 7. A central groove 111 is formed in the center of the bottom of the lifting gear 11. Two opposing side grooves 112 are formed on the inner side wall of the central groove 111. A lever 114 is vertically slidably connected to the inner side of the side groove 112. A return spring 113 is fixedly connected between the lever 114 and the inner top end of the side groove 112. A hanging rod 12 is rotatably connected to the top end of the adjusting frame 1 on one side of the lifting gear 11. The outer surface of the hanging rod 12 is circumferential. The array is fixedly connected with several long racks 121. The lifting gear 11 meshes with the long racks 121. When the lead screw 2 rotates with the top cap 7, the lifting gear 11 will be rotated by the top cap 7. Since the top of the hanging rod 12 is connected to the ceiling or a mounting part fixed to the ceiling, it remains stationary. When the lifting gear 11 rotates, the adjusting frame 1 will rotate around the hanging rod 12 as the center, thereby adjusting the angle in the left and right directions, increasing the monitoring range of the monitoring head 13 and improving the monitoring efficiency.

[0036] It should be noted that the long rack 121 on the surface of the boom 12 is relatively long. During the lifting and lowering process of the lifting gear 11, it is always engaged with the long rack 121 to avoid misalignment during the lifting and lowering process.

[0037] It should be noted that the lever 114 is set to slide within the side groove 112. The main reason for this is that when the lifting gear 11 descends, the protrusion 701 on the side wall of the top cap 7 is located directly below the lever 114. To prevent the lifting gear 11 from being blocked by the lever 114 and thus unable to descend normally, the lever 114 is set to slide up and down. When descending, the protrusion 701 pushes the lever 114, and the lifting gear 11 descends normally. When the top cap 7 enters the center groove 111 of the lifting gear 11, the top cap 7 and the lead screw 2 rotate normally. When the protrusion 701 and the lever 114 are misaligned, the lever 114 will be reset under the push of the return spring 113, reaching the same height as the protrusion 701. During the rotation of the top cap 7 and the protrusion 701, they will normally contact the lever 114 and drive the lifting gear 11 to rotate.

[0038] It is worth noting that, such as Figure 1 and Figure 5As shown, a top frame 8 is fixedly connected to the top of the adjusting frame 1 on one side of the top cap 7. An electric push rod 9 is fixedly connected to the lower surface of the top of the top of the top frame 8. A mounting plate 10 is fixedly connected to the telescopic end of the electric push rod 9. When it is necessary to adjust the left and right angles, the electric push rod 9 extends, driving the mounting plate 10 and the lifting gear 11 to descend, allowing the top cap 7 to enter the central groove 111 of the lifting gear 11. When it is not necessary to adjust the left and right angles, but only the height, the electric push rod 9 drives the lifting gear 11 to rise, allowing the top cap 7 to disengage from the central groove 111. A telescopic frame 801 is fixedly connected to the surface of the top frame 8 on one side of the electric push rod 9. The telescopic end of the telescopic frame 801 is fixedly connected to the telescopic end of the electric push rod 9. The telescopic frame 801 extends and retracts with the electric push rod 9. Its main function is to provide lateral protection for the electric push rod 9. When the adjusting frame 1 rotates around the suspension rod 12, it supports and blocks the lateral force on the electric push rod 9, preventing the electric push rod 9 from malfunctioning when subjected to large lateral forces.

[0039] It is worth noting that, such as Figure 3 As shown, the top end of the lead screw 2 passes through the surface of the adjustment frame 1 and is fixedly connected to the top cap 7. The lead screw 2 is rotatably connected to the adjustment frame 1 through the bearing seat. The outer surface of the lead screw 2 is fixedly connected to the inner ring of the bearing seat, and the outer ring of the bearing seat is fixedly connected to the inner wall of the adjustment frame 1. Two protrusions 701 are fixedly connected to the outer wall of the top cap 7. After the top cap 7 is inserted into the center groove 111 of the lifting gear 11, when the protrusions 701 rotate to the state of contacting the lever 114, continuing to rotate will drive the lifting gear 11 to rotate together. A servo motor 202 is fixedly connected to the bottom of the adjustment frame 1 directly below the lead screw 2. The tail end of the drive shaft of the servo motor 202 is fixedly connected to the bottom end of the lead screw 2.

[0040] It is worth noting that the left and right angle adjustment of the entire adjustment frame 1 is basically guaranteed to be within 180 degrees. Therefore, the power supply lines of the servo motor 202, electromagnet 6 and monitoring head 13 can be laid out normally without worrying about tangling. Just leave enough length.

[0041] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0042] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A height-adjustable monitoring device, comprising an adjustment frame (1) and a vertical plate (5), characterized in that, A vertically arranged ratchet (501) is fixedly connected to the center of the surface of the vertical plate (5). A magnetic absorbing piece (502) is fixedly connected to the surface of the vertical plate (5) on the opposite side of the ratchet (501). An electromagnet (6) is fixedly connected to the inner wall of the adjustment frame (1) corresponding to the horizontal height of the magnetic absorbing piece (502). A lead screw (2) is rotatably connected between the upper and lower inner walls of the adjustment frame (1) on one side of the vertical plate (5). A lifting block (201) passes through the surface of the lead screw (2) and is threadedly connected to the lifting block (201). A fixing plate (3) is fixedly connected to the surface of the lifting block (201) facing the vertical plate (5). A ratchet (301) is fixedly connected to the side wall of the fixing plate (3). A servo motor (202) is fixedly connected to the bottom of the adjustment frame (1) directly below the lead screw (2).

2. The height-adjustable monitoring device as described in claim 1, characterized in that, The vertical plate (5) is slidably connected to the four corners of the surface by the slide rod (4). The slide rod (4) is fixedly connected between the inner side walls of the adjustment frame (1). A compression spring (401) is sleeved on the surface of the slide rod (4) on one side of the magnetic absorbing piece (502).

3. The height-adjustable monitoring device as described in claim 1, characterized in that, The top end of the lead screw (2) passes through the surface of the adjustment frame (1) and is fixedly connected to the top cap (7). The lead screw (2) is rotatably connected to the adjustment frame (1) through the bearing seat. Two protrusions (701) are fixedly connected to the outer side wall of the top cap (7). The tail end of the drive shaft of the servo motor (202) is fixedly connected to the bottom end of the lead screw (2).

4. The height-adjustable monitoring device as described in claim 3, characterized in that, A top frame (8) is fixedly connected to the top of the adjustment frame (1) on one side of the top cap (7). An electric push rod (9) is fixedly connected to the lower surface of the top of the top of the top frame (8). A mounting plate (10) is fixedly connected to the telescopic end of the electric push rod (9). A lifting gear (11) is rotatably connected to the bottom of the mounting plate (10). The lifting gear (11) is located directly above the top cap (7). A telescopic frame (801) is fixedly connected to the surface of the top frame (8) on one side of the electric push rod (9). The telescopic end of the telescopic frame (801) is fixedly connected to the telescopic end of the electric push rod (9).

5. The height-adjustable monitoring device as described in claim 4, characterized in that, The bottom center of the lifting gear (11) is provided with a central groove (111), and the inner side wall of the central groove (111) is provided with two opposing side grooves (112). A lever (114) is vertically slidably connected to the inner side of the side groove (112), and a return spring (113) is fixedly connected between the lever (114) and the inner top end of the side groove (112).

6. The height-adjustable monitoring device as described in claim 4, characterized in that, The top of the adjustment frame (1) on one side of the lifting gear (11) is rotatably connected to a rod (12). The outer surface of the rod (12) is fixedly connected with several long racks (121) in a circumferential array. The lifting gear (11) meshes with the long racks (121).

7. The height-adjustable monitoring device as described in claim 1, characterized in that, The side wall of the adjustment frame (1) is provided with a vertical groove (101), and a monitoring head (13) is fixedly connected to the side surface of the lifting block (201) facing the vertical groove (101). The monitoring head (13) is located on the outside of the adjustment frame (1).

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