A weak current engineering security monitoring device

Abstract

This invention discloses a security monitoring device for low-voltage electrical engineering, including a monitoring camera with a lens at its front end and a control pan-tilt unit connected to one side. It also includes a suspension mount, with a suspension shaft fixedly connected to the bottom of the mount and connected to the control pan-tilt unit. A suspension bracket revolves relative to the suspension shaft, and a rotating shaft with an axis perpendicular to and intersecting the suspension shaft is rotatably connected to the bottom of the suspension bracket. In this invention, the suspension mount includes a revolving suspension bracket and a water spray pipe. A rotating shaft on the suspension bracket drives a rotating cloth cleaning disc. After the suspension bracket revolves and positions the cloth cleaning disc below the water spray pipe, the water spray pipe can spray water onto the cloth cleaning disc. When the suspension bracket revolves until the cloth cleaning disc and the lens are in contact, the rotation axis of the cloth cleaning disc is perpendicular to the lens. Controlling the rotating shaft to rotate at high speed allows the cloth cleaning disc to use centrifugal force to wipe away dirt adhering to the lens, resulting in a stronger lens cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of security monitoring technology, and in particular to a security monitoring device for low-voltage engineering. Background Technology

[0002] A security monitoring system is an independent and complete system that uses fiber optic cables, coaxial cables, or microwaves to transmit video signals within a closed loop. It consists of cameras, image display, and recording. It can reflect the monitored object in real time, vividly, and realistically. It can replace manual monitoring for long periods of time in harsh environments and record the data through a video recorder. A video security monitoring system refers to an electronic system or network that uses video detection technology to monitor the protected area and display and record on-site images in real time.

[0003] Currently, the core component of security monitoring equipment is the security camera, which is equipped with a lens. The camera's orientation is controlled by a pan-tilt unit (PTZ), and the images captured by the lens are uploaded to the cloud via the network. Since the lens is exposed, its clarity and transparency are crucial for obtaining high-quality images. The main factor affecting lens clarity and transparency is adhering contaminants. For example, free oil molecules from exhaust emissions mix with dust and adhere to the lens surface; tree sap, bird droppings, and dead insects also adhere to the lens. These types of contaminants have strong adhesion and are difficult to remove effectively using various cleaning methods. Furthermore, cleaning often leaves water stains and dirt on the lens surface, resulting in poor cleaning. Additionally, the cleaning component is usually a cleaning sponge, which is easily contaminated. When the sponge is used to clean the lens again after secondary contamination, it transfers its own contaminants to the lens.

[0004] Therefore, this invention proposes a security monitoring device for low-voltage engineering. Summary of the Invention

[0005] The purpose of this invention is to provide a security monitoring device for low-voltage engineering, in order to solve the problem that existing technologies are unable to remove strongly adhering dirt from the lens surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A security monitoring device for low-voltage electrical engineering includes a monitoring camera with a lens at its front end and a control pan-tilt unit connected to one side. It also includes a suspension mount, with a suspension shaft fixedly connected to the bottom of the mount and connected to the control pan-tilt unit. A suspension frame revolves relative to the suspension shaft on the suspension shaft. A rotating shaft with an axis perpendicular to and intersecting the axis of the suspension shaft is rotatably connected to the bottom of the suspension frame. A cloth cleaning disc is provided at one end of the rotating shaft facing the axis of the suspension shaft. An annular turntable is provided at the bottom of the suspension mount, and the suspension shaft is located within the annular turntable, with both coaxial. A linkage transmission assembly is provided on the suspension frame. Under the action of this linkage transmission assembly, the rotating shaft rotates when the suspension frame moves circumferentially relative to the annular turntable. A water spray pipe is provided at the bottom of the suspension mount near the inner ring of the annular turntable.

[0008] As a further description of the above technical solution:

[0009] The suspension includes a suspension rod and a vertical plate. One end of the suspension rod is welded with a rotating sleeve that is sleeved on the outside of the suspension shaft. The top of the vertical plate is fixedly connected to the bottom of the suspension rod near the free end. The rotating shaft is rotatably connected to the bottom of the vertical plate.

[0010] As a further description of the above technical solution:

[0011] The linkage transmission assembly includes a large pulley, a transmission belt, and a small pulley. The small pulley is fixedly mounted on the other end of the rotating shaft. The large pulley is rotatably connected to the other end of the suspension rod and is connected to the small pulley via the transmission belt. The outer wall of the transmission belt located between the large pulley and the annular turntable abuts against the lower end of the annular turntable.

[0012] As a further description of the above technical solution:

[0013] The bottom of the suspension seat is fixedly connected to a control motor, and the output of the control motor is fixedly connected to a drive gear. The outer side of the rotating sleeve is fixedly fitted with a driven gear that meshes with the drive gear.

[0014] As a further description of the above technical solution:

[0015] The top of the suspension seat is provided with a groove, and a control motor is fixedly connected in the groove. The output shaft of the control motor is fixedly connected to a drive gear located below the suspension seat, and the drive gear meshes with the inner circumferential wall of the annular turntable.

[0016] As a further description of the above technical solution:

[0017] A water storage tank is fixedly installed inside the settling tank, and a water pump is installed inside the water storage tank. The outlet pipe of the water pump is fixedly connected to an adapter pipe located outside the water storage tank. The top of the spray pipe extends into the settling tank and is connected to the adapter pipe through a hose.

[0018] As a further description of the above technical solution:

[0019] The cloth cleaning tray includes a conical disc and short cloth ropes that are uniformly and fixedly arranged on the large end face of the conical disc. The short cloth ropes have a circular cross-section, and the small end face of the conical disc is fixedly connected to the rotating shaft.

[0020] As a further description of the above technical solution:

[0021] The suspension rod is an elastic telescopic structure comprising a base rod, a tension spring, and a sleeve. One end of the sleeve is fitted over the outside of the base rod, and one side of the sleeve is fixedly connected to a vertical plate. The tension spring is located inside the tension spring, and its two ends are fixedly connected to the base rod and the sleeve, respectively. A drive disc is slidably connected to the bottom of the suspension seat. A clearance notch for the suspension shaft is provided in the middle of the drive disc. A roller is provided on the other side of the sleeve, and the outer peripheral wall of the roller abuts against the outer peripheral wall of the drive disc.

[0022] As a further description of the above technical solution:

[0023] The outer peripheral wall of the suspension shaft is provided with a positioning groove, and an electric push rod is provided in the positioning groove. The back of the drive disc is fixedly connected to a connecting plate that is fixedly connected to the output shaft of the electric push rod.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In this invention, a rotating suspension and a water spray pipe are installed on the suspension seat. A rotating shaft drives a cloth cleaning disc to rotate. After the suspension revolves and the cloth cleaning disc is positioned below the water spray pipe, the water spray pipe can spray water onto the cloth cleaning disc. When the suspension revolves until the cloth cleaning disc and the lens are in contact, the rotation axis of the cloth cleaning disc is perpendicular to the lens. At this time, the rotating shaft is controlled to rotate at high speed, and the cloth cleaning disc will use centrifugal force to wipe away the dirt adhering to the lens, which has the advantage of stronger lens cleaning power.

[0026] 2. In this invention, the high-speed rotation of the cloth cleaning tray centrifugally removes some of the adhering substances and residual moisture. This function, combined with the revolving suspension and water spray pipe, facilitates the replenishment of water to the contaminated cloth cleaning tray and the centrifugal motion, achieving self-cleaning and drying of the cloth cleaning tray. Then, the controlled centrifugal rotation of the cloth cleaning tray, with significantly reduced humidity, effectively removes watermarks and stains from the lens surface. Therefore, this design not only improves the cleanliness of the lens after wiping but also provides a self-cleaning function for the cloth cleaning tray, allowing for multiple uses.

[0027] 3. In this invention, by setting an annular turntable at the bottom of the suspension seat and a linkage transmission assembly for connecting the annular turntable and the rotating shaft, the rotation of the rotating shaft is driven by the annular turntable, which does not occupy space. The linkage transmission assembly is a belt drive structure. This arrangement greatly reduces the weight and space occupied by the components used to control the rotation of the rotating shaft, making the high-speed rotation control of the rotating shaft more reliable and stable.

[0028] 4. In this invention, a drive disc is slidably arranged at the bottom of the suspension seat, and the suspension rod on the suspension is set as an elastic telescopic structure. A roller that abuts against the outer periphery of the drive disc is set on the suspension rod. Thus, when the suspension revolves, the telescopic movement of the suspension rod is controlled by the position of the drive disc. When the drive disc is controlled to slide relative to the suspension shaft, the cloth cleaning disc can increase the squeezing force on the lens, making it easier to clean off the adhesive with greater adhesion strength.

[0029] 5. In this invention, the sliding of the drive disc causes the suspension rod to extend and retract during operation. This extension and retraction changes the distance between the large pulley and the suspension shaft. When the rotational angular velocity of the suspension is constant, the large pulley exhibits a changing rotational speed. Specifically, during suspension operation, the cloth cleaning disc is at a low rotational speed when it is opposite the lens, and at its highest rotational speed when the distance between the cloth cleaning disc and the lens is greatest. This design provides continuous centrifugal drainage and periodic lens cleaning after a single water absorption, significantly improving lens cleaning efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a low-voltage engineering security monitoring device proposed in this invention;

[0031] Figure 2 This is a schematic diagram of the top structure of the suspension base of a low-voltage engineering security monitoring device proposed in this invention;

[0032] Figure 3 This is a schematic diagram of the connection between the hanging bracket, control pan-tilt unit, and monitoring camera of a low-voltage engineering security monitoring device proposed in this invention.

[0033] Figure 4 This is a schematic diagram of the suspension and linkage transmission combination of a low-voltage engineering security monitoring device proposed in this invention;

[0034] Figure 5 This is a schematic diagram of the structure of a cloth cleaning tray for a low-voltage engineering security monitoring device proposed in this invention;

[0035] Figure 6 This is a schematic diagram of the connection between the water tank and the suspension seat of a low-voltage engineering security monitoring device proposed in this invention;

[0036] Figure 7This is a schematic diagram of the structure of a low-voltage engineering security monitoring device proposed in this invention, in which the short cloth rope is located below the water spray pipe;

[0037] Figure 8 This is a schematic diagram of the connection between the drive disc and the suspension seat of a low-voltage engineering security monitoring device proposed in this invention;

[0038] Figure 9 This is a schematic diagram of the drive disc of a low-voltage engineering security monitoring device proposed in this invention;

[0039] Figure 10 This is a plan view of the suspension rod, drive disc, and electric push rod of a low-voltage engineering security monitoring device proposed in this invention.

[0040] Legend:

[0041] 1. Surveillance camera; 2. Lens; 3. Control pan / tilt unit; 4. Suspension mount; 41. Sink; 5. Suspension shaft; 51. Positioning slot; 6. Suspension; 61. Suspension rod; 6101. Base rod; 6102. Tension spring; 6103. Sleeve; 61031. Roller; 611. Rotating sleeve; 6111. Driven gear one; 62. Vertical plate; 7. Rotating shaft; 8. Cloth cleaning tray; 81. Conical disc; 82. Short cloth rope; 9. 1. Linkage transmission assembly; 91. Large pulley; 92. Transmission belt; 93. Small pulley; 101. Control motor one; 1011. Drive gear one; 102. Control motor two; 1021. Drive gear two; 103. Water tank; 1031. Transfer pipe; 104. Drive disc; 1041. Clearance notch; 1042. Connecting plate; 105. Water spray pipe; 106. Circular turntable; 107. Electric push rod. Detailed Implementation

[0042] 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.

[0043] Example 1

[0044] Please see Figure 1-7 A low-voltage engineering security monitoring device includes a monitoring camera 1, a lens 2 is provided at the front end of the monitoring camera 1, the monitoring camera 1 is used for security monitoring, and a control pan-tilt unit 3 is connected to one side of the monitoring camera 1. The function of the control pan-tilt unit 3 is to adjust the orientation of the lens 2.

[0045] This technical solution also includes a suspension seat 4, which is used to suspend the device. During use, it is connected to the external mounting plate by bolts. The suspension seat 4 can be a disc-shaped structure. A suspension shaft 5, which is connected to the control pan-tilt unit 3, is fixedly connected to the bottom of the suspension seat 4. During use, a wire passage is opened inside the suspension shaft 5 to facilitate the wiring of the device's wires. A suspension frame 6, which revolves relative to the suspension shaft 5, is connected to the suspension shaft 5. That is, the suspension frame 6 can rotate around the suspension shaft 5. A rotating shaft 7, whose axis is perpendicular to and intersects the axis of the suspension shaft 5, is rotatably connected to the bottom of the suspension frame 6. Preferably, in a specific implementation, the suspension frame 6 includes a suspension rod 61 and a vertical plate 62. A rotating sleeve 611, which is sleeved on the outside of the suspension shaft 5, is welded to one end of the suspension rod 61. A bearing is provided between the rotating sleeve 611 and the suspension shaft 5. The top of the vertical plate 62 is fixedly connected to the bottom of the suspension rod 61 near its free end. The rotating shaft 7 is rotatably connected to the bottom of the vertical plate 62.

[0046] Furthermore, a control motor 101 is fixedly connected to the bottom of the suspension seat 4. The output of the control motor 101 is fixedly connected to a drive gear 1011. The outer side of the rotating sleeve 611 is fixedly fitted with a driven gear 6111 that meshes with the drive gear 1011. The control motor 101 drives the rotating sleeve 611 to rotate through the meshing of the drive gear 1011 and the driven gear 6111, thereby driving the suspension 6 to rotate around the suspension shaft 5.

[0047] A cloth cleaning disc 8 is provided at one end of the rotating shaft 7 facing the axis of the suspension shaft 5. When the rotating shaft 7 rotates, it can drive the cloth cleaning disc 8 to rotate. In use, first control the gimbal 3 to control the lens 2 to be in a horizontal orientation, then control the suspension 6 to rotate to a position where the cloth cleaning disc 8 and the front side of the lens 2 are opposite. When the rotating shaft 7 is rotated, the cloth cleaning disc 8 will rotate and clean the dirt adhering to the lens surface at the same time.

[0048] The cloth cleaning tray 8 includes a conical tray 81 and short cloth ropes 82 that are evenly and fixedly arranged on the large end face of the conical tray 81. The cross-section of the short cloth ropes 82 is circular. The small end face of the conical tray 81 is fixedly connected to the rotating shaft 7. When the rotating shaft 7 rotates at high speed, the short cloth ropes 82 will twist and swing laterally under the action of centrifugal force. This arrangement allows a large number of short cloth ropes 82 to centrifugally clean away the adhering substances, water stains and water marks on the lens 2, with a greater cleaning force. Moreover, the centrifugal motion of the short cloth ropes 82 can also dehydrate and remove dirt, making it easy to throw off the wastewater mixture on them, realizing the self-cleaning function without affecting subsequent recycling.

[0049] The bottom of the suspension seat 4 is provided with an annular turntable 106, and the suspension shaft 5 is located inside the annular turntable 106 and the two are coaxial. In specific implementation, a limiting sleeve can be welded to the bottom of the suspension seat 4 and fitted outside the annular turntable 106. The limiting sleeve and the annular turntable 106 rotate in cooperation. The suspension 6 is provided with a linkage transmission assembly 9. Under the action of the linkage transmission assembly 9, when the suspension 6 moves circumferentially relative to the annular turntable 106, the rotating shaft 7 rotates. That is to say, the rotation of the rotating shaft 7 is achieved by the conversion of the relative motion between the suspension 6 and the annular turntable 106 through the linkage transmission assembly 9.

[0050] Specifically, the linkage transmission assembly 9 includes a large pulley 91, a transmission belt 92, and a small pulley 93. The small pulley 93 is fixedly mounted on the other end of the rotating shaft 7. The large pulley 91 is rotatably connected to the other end of the suspension rod 61 and is connected to the small pulley 93 through the transmission belt 92. The outer wall of the transmission belt 92 located between the large pulley 91 and the annular turntable 106 abuts against the lower end of the annular turntable 106. The transmission belt 92 is a synchronous belt. The annular turntable 106 drives the transmission belt 92 to rotate using friction. When the transmission belt 92 rotates, it drives the small pulley 93 to rotate at high speed.

[0051] In this embodiment, a groove 41 is provided on the top of the suspension seat 4. A control motor 102 is fixedly connected in the groove 41. The output shaft of the control motor 102 is fixedly connected to a drive gear 1021 located below the suspension seat 4. The drive gear 1021 meshes with the inner circumferential wall of the annular turntable 106. A ring of teeth can be formed on the inner circumferential wall of the annular turntable 106. That is to say, the control motor 102 provides driving force to the rotation of the annular turntable 106 through the drive gear 1021.

[0052] The bottom of the suspension seat 4 is equipped with a water spray pipe 105 near the inner ring of the annular turntable 106. The function of this water spray pipe 105 is to spray cleaning fluid downwards. When the cloth cleaning disc 8 moves to the area below the water spray pipe 105, the cleaning fluid sprayed by the water spray pipe 105 will wet the short cloth rope 82, thus achieving the function of replenishing water to the short cloth rope 82.

[0053] Furthermore, a water storage tank 103 is fixedly installed inside the settling tank 41. A water pump is installed inside the water storage tank 103. The outlet pipe of the water pump is fixedly connected to a transfer pipe 1031 located outside the water storage tank 103. The top of the spray pipe 105 extends into the settling tank 41 and is connected to the transfer pipe 1031 through a hose. After the water pump is started, the cleaning fluid will be sprayed outward through the spray pipe 105.

[0054] Example 2

[0055] Please see Figure 8-10The difference from Embodiment 1 is that the suspension rod 61 is an elastic telescopic structure and includes a base rod 6101, a tension spring 6102, and a sleeve 6103. One end of the sleeve 6103 is fitted outside the base rod 6101 and its side is fixedly connected to the vertical plate 62. The tension spring 6102 is located inside the tension spring 6102 and its two ends are fixedly connected to the base rod 6101 and the sleeve 6103 respectively. That is to say, the distance between the cloth cleaning disc 8 and the suspension shaft 5 can be adjusted. The bottom of the suspension seat 4 is slidably connected to a drive disc 104. The middle of the drive disc 104 has a clearance notch 1041 for making way for the suspension shaft 5. The other side of the sleeve 6103 is provided with a roller 61031. The outer peripheral wall of the roller 61031 is connected to the drive disc 61031. The outer peripheral walls of the disc 104 abut against each other. The aforementioned distance is adjusted by the sliding of the drive disc 104. When the drive disc 104 moves, the distance between the cloth cleaning disc 8 and the suspension shaft 5 changes due to the trajectory formed by its outer peripheral walls and the elastic tension of the tension spring 6102. Therefore, when the lens 2 is directly below the line of motion of the drive disc 104, the cloth cleaning disc 8 may experience increased pressure from the lens 2 as it passes by, or it may not contact the lens 2 at all. Increased pressure between the cloth cleaning disc 8 and the lens 2 helps remove dirt with stronger adhesion. When the cloth cleaning disc 8 does not contact the lens 2, it facilitates centrifugal cleaning of the wastewater mixture on the short cloth rope 82. It should be noted that the change in the distance between the cloth cleaning disc 8 and the suspension shaft 5 also changes its rotational speed. Therefore, there is a way to clean the lens 2 by controlling the suspension 6 to continuously revolve, and then starting the drive disc 104 to move so that the cloth cleaning disc 8 rotates and passes over the lens 2. When it passes over, it will strongly squeeze the outer surface of the lens 2. At this time, the rotation speed of the cloth cleaning disc 8 is at its lowest when it is facing the lens 2. When the distance between the cloth cleaning disc 8 and the lens 2 is the largest, the rotation speed of the cloth cleaning disc 8 is the highest. Thus, after a single water supply to the cloth cleaning disc 8, the variable speed revolution of the cloth cleaning disc 8 can effectively drain water centrifugally and clean off adhering substances, water stains and water marks (on the lens 2 and the short cloth rope 82), which has the advantage of high cleaning efficiency for the lens 2.

[0056] Furthermore, a positioning groove 51 is provided on the outer peripheral wall of the suspension shaft 5, and an electric push rod 107 is provided in the positioning groove 51. A connecting plate 1042, which is fixedly connected to the output shaft of the electric push rod 107, is fixedly connected to the back of the drive disk 104. The electric push rod 107 provides driving force to the sliding of the drive disk 104.

[0057] Working Principle: During use, when cleaning adhering dirt from the lens 2 surface is required, the suspension 6 is rotated, positioning the cloth cleaning disc 8 below the water spray pipe 105. The water spray pipe 105 sprays water to wet the short cloth rope 82. Then, the suspension 6 is rotated until the short cloth rope 82 contacts the lens 2 surface. The annular turntable 106 is then rotated, and under the transmission of the linkage assembly 9, the small pulley 93 drives the rotating shaft 7 to rotate at high speed. The short cloth rope 82, under centrifugal force, swings and cleans away the dirt from the lens 2. The short cloth rope 82 detaches from the dirty water under centrifugal force. As the humidity of the short cloth rope 82 decreases significantly, water stains and marks on the lens 2 gradually disappear, achieving a thorough cleaning of the lens 2. Then, the suspension 6 is rotated again, positioning the cloth cleaning disc 8 below the water spray pipe 105 once more. The water spray pipe 105 sprays water a second time, and the annular turntable 106 is rotated again, realizing the centrifugal cleaning function of the cloth cleaning disc 8 for subsequent use.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A security monitoring device for low-voltage electrical engineering, comprising a monitoring camera (1), wherein a lens (2) is provided at the front end of the monitoring camera (1), and a control pan-tilt unit (3) is connected to one side of the monitoring camera (1), characterized in that, It also includes a suspension seat (4), the bottom of which is fixedly connected to a suspension shaft (5) connected to a control gimbal (3). A suspension frame (6) revolves relative to the suspension shaft (5) on the suspension shaft (5). The bottom of the suspension frame (6) is rotatably connected to a rotating shaft (7) whose axis is perpendicular to and intersects the axis of the suspension shaft (5). The suspension frame (6) includes a suspension rod (61) and a vertical plate (62). One end of the suspension rod (61) is welded with a rotating sleeve (611) sleeved outside the suspension shaft (5). The top of the vertical plate (62) is fixedly connected to the bottom of the suspension rod (61) near the free end. The rotating shaft (7) is rotatably connected to the bottom of the vertical plate (62). A cloth cleaning disc (8) is provided on one end of the rotating shaft (7) facing the axis of the suspension shaft (5). An annular turntable (106) is provided at the bottom of the suspension seat (4). The shaft (5) is located inside the annular turntable (106) and the two are coaxial. The suspension (6) is provided with a linkage transmission assembly (9). Under the action of the linkage transmission assembly (9), when the suspension (6) moves circumferentially relative to the annular turntable (106), the shaft (7) rotates. The linkage transmission assembly (9) includes a large pulley (91), a transmission belt (92) and a small pulley (93). The small pulley (93) is fixedly installed at the other end of the shaft (7). The large pulley (91) is rotatably connected to the other end of the suspension rod (61) and is connected to the small pulley (93) through the transmission belt (92). The outer wall of the transmission belt (92) located between the large pulley (91) and the annular turntable (106) abuts against the lower end of the annular turntable (106). The bottom of the suspension seat (4) is provided with a water spray pipe (105) close to the inner ring of the annular turntable (106).

2. The low-voltage engineering security monitoring device according to claim 1, characterized in that, The bottom of the suspension seat (4) is fixedly connected to a control motor (101), and the output of the control motor (101) is fixedly connected to a drive gear (1011). The outer side of the rotating sleeve (611) is fixedly fitted with a passive gear (6111) that meshes with the drive gear (1011).

3. The low-voltage engineering security monitoring device according to claim 1, characterized in that, The top of the suspension seat (4) is provided with a sink groove (41), and a control motor (102) is fixedly connected in the sink groove (41). The output shaft of the control motor (102) is fixedly connected to a drive gear (1021) located below the suspension seat (4), and the drive gear (1021) meshes with the inner circumferential wall of the annular turntable (106).

4. The low-voltage engineering security monitoring device according to claim 3, characterized in that, A water storage tank (103) is fixedly installed inside the settling tank (41). A water pump is installed inside the water storage tank (103). The outlet pipe of the water pump is fixedly connected to a transfer pipe (1031) located outside the water storage tank (103). The top of the spray pipe (105) extends into the settling tank (41) and is connected to the transfer pipe (1031) through a hose.

5. A security monitoring device for low-voltage electrical engineering according to claim 1, characterized in that, The cloth cleaning tray (8) includes a conical tray (81) and short cloth ropes (82) uniformly and fixedly arranged on the large end face of the conical tray (81). The cross-section of the short cloth ropes (82) is circular. The small end face of the conical tray (81) is fixedly connected to the rotating shaft (7).

6. A security monitoring device for low-voltage engineering according to claim 1, characterized in that, The suspension rod (61) is an elastic telescopic structure and includes a base rod (6101), a tension spring (6102) and a sleeve (6103). One end of the sleeve (6103) is sleeved on the outside of the base rod (6101) and one side of it is fixedly connected to the vertical plate (62). The tension spring (6102) is located inside the tension spring (6102) and its two ends are fixedly connected to the base rod (6101) and the sleeve (6103) respectively. A drive disc (104) is slidably connected to the bottom of the suspension seat (4). A clearance notch (1041) for making way for the suspension shaft (5) is opened in the middle of the drive disc (104). A roller (61031) is provided on the other side of the sleeve (6103). The outer peripheral wall of the roller (61031) abuts against the outer peripheral wall of the drive disc (104).

7. A security monitoring device for low-voltage electrical engineering according to claim 6, characterized in that, The outer peripheral wall of the suspension shaft (5) is provided with a positioning groove (51), and an electric push rod (107) is provided in the positioning groove (51). The back of the drive disc (104) is fixedly connected to a connecting plate (1042) that is fixedly connected to the output shaft of the electric push rod (107).

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