Low-light night vision full-color explosion-proof camera

Abstract

The invention discloses a low-light night vision full-color anti-explosion camera, and relates to the technical field of cameras, the camera comprises a main body, a cleaning assembly and a lens assembly, the main body comprises a front cover, a cylinder and a rear cover, the front cover is in threaded connection with the cylinder, a limiting plate is arranged on the inner wall of the front cover and fixedly connected with the front cover, and the lens assembly is arranged on one side of the limiting plate. The lens assembly is used for imaging and located on the side, close to the barrel, of the limiting plate, a cleaning assembly is arranged on the front cover and used for cleaning the camera, and the rear cover is in threaded connection with the barrel and located on the side, away from the front cover, of the barrel.

Description

Technical Field

[0001] The invention relates to the technical field of cameras, in particular to a low-light-level night-vision full-color explosion-proof camera. Background Art

[0002] Explosion-proof cameras belong to the category of explosion-proof monitoring products, which are the intersection of the explosion-proof industry and the monitoring industry. Explosion-proof cameras need to work normally in high-risk environments. High-risk environments include the following: the presence of flammable gases, dust and mixtures in a certain concentration; sufficient oxygen to react with combustibles; sufficient temperature to cause the mixture to react with oxygen; the space on site is small enough to cause the heat after combustion to accumulate to a certain concentration in a short period of time or even explode.

[0003] Because explosion-proof cameras are used in high-risk environments, the outer surface of the objective lens is easily affected by external impurities, causing dust to adhere to the outer surface of the objective lens, or particulate matter to cause wear on the outer surface of the objective lens, thereby affecting the normal use of the camera. Staff are required to clean the mirror regularly, and simply using a brush for cleaning is inefficient and cannot effectively clean the mirror. Summary of the invention

[0004] The purpose of the present invention is to provide a low-light-level night-vision full-color explosion-proof camera to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a technical solution for a low-light-level night vision full-color explosion-proof camera. The camera comprises a main body, a cleaning assembly and a lens assembly. The main body comprises a front cover, a barrel and a rear cover. The front cover is threadedly connected to the barrel. A limiting plate is provided on the inner wall of the front cover. The limiting plate is fixedly connected to the front cover. A lens assembly is provided on one side of the limiting plate. The lens assembly is used for imaging. The lens assembly is located on a side of the barrel close to the limiting plate. A cleaning assembly is provided on the front cover. The cleaning assembly is used for cleaning the camera. The rear cover is threadedly connected to the barrel. The rear cover is located on a side of the barrel away from the front cover.

[0007] The main body serves as the main structure of the camera, and is connected to the two ends of the barrel through the front cover, the rear cover and the threads to form an integral structure to protect the internal parts structure. The limit plate of the front cover is used to limit the objective lens in the lens assembly to prevent the objective lens from falling off. The rear cover is used to limit the image processor in the lens assembly, and when the objective lens is damaged, the objective lens can be exposed to the outside by rotating the front cover for repair and replacement. The same is true for the rear cover. The cleaning assembly is used to clean the objective lens to prevent dust from accumulating on the surface of the objective lens due to long-term use, resulting in blurred images. The dust accumulation state on the surface of the objective lens is known by the capacitance between the two capacitor blocks in the cleaning assembly, and then the brush is controlled by the spring to clean the outer surface of the objective lens. The front cover, the barrel and the rear cover are made of stainless steel, thereby effectively protecting the electronic components in the main body.

[0008] Furthermore, the cleaning assembly includes a shell and an extension rod, the shell is fixedly connected to the outer wall of the front cover, a transmission rod is provided in the shell, a rotating rod is provided in the middle of the transmission rod body, the rotating rod is rotatably connected to the inner wall of the shell, extension rods A and extension rods B are provided at both ends of the transmission rod, the extension rod A is rotatably connected to the transmission rod, a brush is provided at one end of the extension rod A, the brush is fixedly connected to the extension rod A, the extension rod B is rotatably connected to the transmission rod, a spring is provided at one end of the extension rod B, one end of the spring is fixedly connected to the transmission rod, the other end of the spring is fixedly connected to the inner wall of the shell, the spring is electrically connected to an external power supply, and a liquid storage assembly is provided on the inner wall of the shell.

[0009] The internal space of the shell is connected with the internal space of the front cover, and the spring is electrically connected to the external power supply, so that the spring will retract when energized. The principle is that when current passes through the spring, a magnetic field will be generated around each circle of wire that constitutes the spring. According to Ampere's law, there will be mutual attraction between the circles of wire, causing the spring to shorten. The shortened spring will drive the extension rod B to move, and the extension rod B will drive one end of the transmission rod to move. Because a rotating rod is provided in the middle of the transmission rod, the other end of the transmission rod will drive the extension rod A to move in the opposite direction. The movement directions of the extension rod A and the extension rod B are opposite. The extension rod A drives the brush to move so that the brush can contact the outer surface of the objective lens, and then the liquid storage assembly is used to store the cleaning liquid.

[0010] Furthermore, a through hole is provided on the front cover, and the through hole cooperates with the brush.

[0011] The through hole, the brush and the extension rod A are on the same central axis. When the spring is energized, the brush is controlled to move, and the brush moves through the through hole to the outer wall of the front cover, so that the brush contacts the outer surface of the objective lens.

[0012] Furthermore, the liquid storage component includes a tank and a buoyancy ball. The tank is fixedly connected to the inner wall of the shell. An electromagnetic valve is provided at the bottom of the tank. The tank is connected to the electromagnetic valve pipeline. The output end of the electromagnetic valve is located on the outer wall of the shell. A water inlet is provided at the top of the shell. The water inlet is connected to the tank. A Hall element is provided at the bottom of the tank. A buoyancy ball is provided in the tank. A magnetic block is provided in the buoyancy ball.

[0013] The solenoid valve is used to control the flow of cleaning liquid. The output end of the solenoid valve is located on the outer wall of the shell, and the output end is aligned with the outer surface of the objective lens. When the solenoid valve is opened, the cleaning liquid flows through the output end of the solenoid valve and is sprayed on the outer surface of the objective lens. The water inlet is used to pour the cleaning liquid. When the cleaning liquid enters the liquid storage component, the buoyancy ball is a hollow structure, so that the density of the buoyancy ball itself is less than the density of the liquid. The buoyancy ball moves upward due to the increase of liquid and eventually blocks the water inlet. Because a Hall element is provided at the bottom of the liquid storage component, a magnetic block is provided in the buoyancy ball. When the buoyancy ball rises due to the increase of liquid, the distance between the magnetic block and the Hall element will increase, so that the magnetic field between the magnetic block and the Hall element will change. When the buoyancy ball rises, the magnetic field between the magnetic block and the Hall element will become smaller, indicating that the liquid level rises. Conversely, when the buoyancy ball falls, the magnetic field between the magnetic block and the Hall element will increase, indicating that the liquid level falls. The liquid level state in the liquid storage component is reflected to the control terminal through the changed numerical value.

[0014] Furthermore, the lens assembly includes an objective lens, an image intensifier and an image processor. The objective lens is located on one side of the limit plate. A capacitor block is provided at the edge of the objective lens. Two capacitor blocks are provided. The capacitor blocks are electrically connected to the objective lens. The capacitor blocks are fixedly connected to the limit blocks. The image intensifier is located in the barrel. The input end of the image intensifier is connected to the output end of the objective lens. The image processor is located at the end of the image intensifier away from the objective lens. The input end of the image processor is connected to the output end of the image intensifier.

[0015] The objective lens is a lens group composed of several lenses, and its purpose is to overcome the imaging defects of a single lens. Its two capacitor blocks are electrically connected to the objective lens, so that the capacitance value generated by the two capacitor blocks through the objective lens is a constant. When impurities adhere to the outer surface of the objective lens or the objective lens is worn, the capacitance value between the two capacitor blocks will change. When the impurities on the objective lens increase, the capacitance value will become smaller. The image generated by the objective lens will be radiated to the image intensifier. The image intensifier converts the optical image projected on the photocathode into an electronic image, and then focuses and accelerates the electronic image through an electronic lens and projects it onto the fluorescent screen, finally generating an enhanced visible light image. The image generated by the image intensifier will be input into the image processor. The image processor consists of an input end, a processing unit and an output end. Among them, the input end is responsible for transmitting the original image to the processing unit, the processing unit is responsible for processing and analyzing the image and outputting the processed information, and the output end is responsible for transmitting the processed image to the display interface or other devices.

[0016] Furthermore, a groove is provided on the limiting plate, and the edge end of the objective lens matches with the groove.

[0017] The groove is used to place the objective lens, so that the objective lens is fixed on the limiting plate through the limiting plate and the capacitor block, and it is also convenient for the capacitor block to be electrically connected to the objective lens.

[0018] Furthermore, a connecting piece is provided on the outer wall of the cylinder, and the connecting piece is fixedly connected to the cylinder.

[0019] The connecting piece is used to connect to the external wall so that the device is fixed on the wall.

[0020] Furthermore, a control terminal is provided on the shell, and a control panel is provided inside the control terminal.

[0021] The control panel is electrically connected to the capacitor block, the control panel is electrically connected to the solenoid valve, and the control panel is electrically connected to the spring. The control panel controls the solenoid valve and the spring to be energized by changing the capacitance value between the two capacitor blocks. When the capacitance value is lower than the set value, it means that there are too many impurities attached to the outer surface of the objective lens and the normal use of the device has been affected. The control panel controls the solenoid valve and the spring to work by changing the capacitance value.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, the cleaning component controls the spring and the electromagnetic valve to be energized by the change of the capacitance value between the two capacitor blocks. The spring will retract when energized, driving the extension rod B to move. The extension rod B drives one end of the transmission rod to move. The other end of the transmission rod drives the extension rod A to move. The extension rod A drives the brush to move, so that the brush contacts the outer surface of the objective lens through the through hole.

[0024] 2. The buoyancy ball in the liquid storage component of the present invention is provided with a magnetic block. When the buoyancy ball rises due to the increase of liquid, the magnetic field between the magnetic block and the Hall element will change. When the buoyancy ball rises, the magnetic field between the magnetic block and the Hall element will become smaller, indicating that the liquid level has risen. Conversely, when the buoyancy ball falls, the magnetic field between the magnetic block and the Hall element will increase, indicating that the liquid level has fallen. The liquid level status in the liquid storage component is reflected to the control terminal through the changing numerical value.

[0025] 3. The image mapped by the objective lens in the present invention will be input into the image intensifier, which converts the optical image projected on the photocathode into an electronic image, and then focuses and accelerates the electronic image through an electronic lens and projects it onto the fluorescent screen, ultimately generating an enhanced visible light image. The image generated by the image intensifier will be input into the image processor and ultimately imaged through the output end of the image processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the lens assembly of the present invention;

[0028] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of the part A in the middle;

[0029] Figure 4 It is a structural schematic diagram of the rotating rod of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the container tank of the present invention;

[0031] Figure 6 It is a schematic structural diagram of the buoyancy ball of the present invention.

[0032] In the figure: 1. main body; 11. front cover; 111. through hole; 12. cylinder; 13. rear cover; 14. limit plate; 141. groove; 2. cleaning assembly; 21. shell; 211. water inlet; 22. liquid storage assembly; 221. container; 222. buoyancy ball; 223. Hall element; 224. magnetic block; 23. transmission rod; 24. rotating rod; 25. extension rod A; 26. extension rod B; 27. brush; 28. spring; 29. ​​solenoid valve; 3. lens assembly; 31. objective lens; 32. image intensifier; 33. image processor; 34. capacitor block; 4. connector; 5. control terminal. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example:

[0035] like Figure 1 to Figure 6 As shown, the present invention provides a technical solution for a low-light-level night vision full-color explosion-proof camera, the camera comprises a main body 1, a cleaning assembly 2 and a lens assembly 3, the main body 1 comprises a front cover 11, a barrel 12 and a rear cover 13, the front cover 11 is threadedly connected to the barrel 12, a limiting plate 14 is provided on the inner wall of the front cover 11, the limiting plate 14 is fixedly connected to the front cover 11, a lens assembly 3 is provided on one side of the limiting plate 14, the lens assembly 3 is used for imaging, the lens assembly 3 is located on a side of the limiting plate 14 close to the barrel 12, a cleaning assembly 2 is provided on the front cover 11, the cleaning assembly 2 is used for cleaning the camera, the rear cover 13 is threadedly connected to the barrel 12, and the rear cover 13 is located on a side of the barrel 12 away from the front cover 11;

[0036] Specifically, the main body 1 is used as the camera main body 1 structure, and is threadedly connected to the two ends of the front cover 11 and the rear cover 13 with the barrel 12 to form an integral structure to protect the internal parts structure. The limit plate 14 of the front cover 11 is used to limit the objective lens 31 in the lens assembly 3 to prevent the objective lens 31 from falling off. The rear cover 13 is used to limit the image processor 33 in the lens assembly 3, and when the objective lens 31 is damaged, the objective lens 31 can be exposed to the outside by rotating the front cover 11, and it can be repaired and replaced. The rear cover 13 is similar. The cleaning component 2 is used to clean the objective lens 31 to prevent the objective lens 31 from accumulating dust on the surface of the objective lens 31 due to long-term use, resulting in blurred images. The dust accumulation state on the surface of the objective lens 31 is known by the capacitance between the two capacitor blocks 34 in the cleaning component 2, and then the brush 27 is controlled by the spring 28 to work to clean the outer surface of the objective lens 31. Then the front cover 11, the barrel 12 and the rear cover 13 are made of stainless steel, thereby effectively protecting the electronic components in the main body 1.

[0037] like Figure 2 to Figure 5 As shown, the cleaning assembly 2 includes a shell 21 and an extension rod, the shell 21 is fixedly connected to the outer wall of the front cover 11, a transmission rod 23 is arranged in the shell 21, a rotating rod 24 is arranged in the middle of the rod body of the transmission rod 23, the rotating rod 24 is rotatably connected to the inner wall of the shell 21, extension rods A25 and extension rods B26 are arranged at both ends of the transmission rod 23, the extension rod A25 is rotatably connected to the transmission rod 23, a brush 27 is arranged at one end of the extension rod A25, the brush 27 is fixedly connected to the extension rod A25, the extension rod B26 is rotatably connected to the transmission rod 23, a spring 28 is arranged at one end of the extension rod B26, one end of the spring 28 is fixedly connected to the transmission rod 23, the other end of the spring 28 is fixedly connected to the inner wall of the shell 21, the spring 28 is electrically connected to the external power supply, and a liquid storage assembly 22 is arranged on the inner wall of the shell 21;

[0038] Specifically, the internal space of the shell 21 is connected to the internal space of the front cover 11, and the spring 28 is electrically connected to the external power supply, so that the spring 28 will retract when it is energized. The principle is that when current passes through the spring 28, a magnetic field will be generated around each circle of wire that constitutes the spring 28. According to Ampere's law, there will be mutual attraction between the circles of wire, causing the spring 28 to shorten. The shortening of the spring 28 will drive the extension rod B26 to move, and the extension rod B26 drives one end of the transmission rod 23 to move. Because a rotating rod 24 is provided in the middle of the transmission rod 23, the other end of the transmission rod 23 drives the extension rod A25 to move in the opposite direction. The movement direction of the extension rod A25 is opposite to that of the extension rod B26. The extension rod A25 drives the brush 27 to move so that the brush 27 can contact the outer surface of the objective lens 31, and then the liquid storage component 22 is used to store the cleaning liquid.

[0039] like Figure 2 , Figure 3 As shown, a through hole 111 is provided on the front cover 11, and the through hole 111 cooperates with the brush 27;

[0040] Specifically, the through hole 111 , the brush 27 and the extension rod A25 are on the same central axis. When the spring 28 is energized, the brush 27 is controlled to move. The brush 27 moves through the through hole 111 to the outer wall of the front cover 11 , so that the brush 27 contacts the outer surface of the objective lens 31 .

[0041] like Figure 2 , Figure 5 , Figure 6 As shown, the liquid storage assembly 22 includes a reservoir 221 and a buoyancy ball 222, the reservoir 221 is fixedly connected to the inner wall of the shell 21, a solenoid valve 29 is provided at the bottom of the reservoir 221, the reservoir 221 is connected to the solenoid valve 29 through a pipeline, the output end of the solenoid valve 29 is located on the outer wall of the shell 21, a water inlet 211 is provided at the top of the shell 21, the water inlet 211 is connected to the reservoir 221, a Hall element 223 is provided at the bottom of the reservoir 221, a buoyancy ball 222 is provided in the reservoir 221, and a magnetic block 224 is provided in the buoyancy ball 222;

[0042] Specifically, the solenoid valve 29 is used to control the flow of the cleaning liquid. The output end of the solenoid valve 29 is located on the outer wall of the housing 21, and the output end is aligned with the outer surface of the objective lens 31. When the solenoid valve 29 is turned on, the cleaning liquid flows through the output end of the solenoid valve 29 and is sprayed on the outer surface of the objective lens 31. The water inlet 211 is used to pour the cleaning liquid. When the cleaning liquid enters the interior of the liquid storage component 22, the buoyancy ball 222 is a hollow structure, so that the density of the buoyancy ball 222 itself is less than the density of the liquid. The buoyancy ball 222 moves upward due to the increase of the liquid, and finally blocks the water inlet 211. Because the bottom of the liquid storage component 22 is provided with a Hall element 223. A magnet 224 is provided in the buoyancy ball 222. When the buoyancy ball 222 rises due to the increase of liquid, the distance between the magnet 224 and the Hall element 223 will increase, so that the magnetic field between the magnet 224 and the Hall element 223 will change. When the buoyancy ball 222 rises, the magnetic field between the magnet 224 and the Hall element 223 will become smaller, indicating that the liquid level has risen. Conversely, when the buoyancy ball 222 falls, the magnetic field between the magnet 224 and the Hall element 223 will increase, indicating that the liquid level has fallen. The liquid level status in the liquid storage component 22 is reflected to the control terminal 5 through the changing numerical value.

[0043] like Figure 2 As shown, the lens assembly 3 includes an objective lens 31, an image intensifier 32 and an image processor 33. The objective lens 31 is located at one side of the limiting plate 14. A capacitor block 34 is provided at the edge end of the objective lens 31. Two capacitor blocks 34 are provided. The capacitor blocks 34 are electrically connected to the objective lens 31. The capacitor blocks 34 are fixedly connected to the limiting blocks. The image intensifier 32 is located in the barrel 12. The input end of the image intensifier 32 is connected to the output end of the objective lens 31. The image processor 33 is located at one end of the image intensifier 32 away from the objective lens 31. The input end of the image processor 33 is connected to the output end of the image intensifier 32.

[0044] Specifically, the objective lens 31 is a lens group composed of a plurality of lenses, and its purpose is to overcome the imaging defects of a single lens. Its two capacitor blocks 34 are electrically connected to the objective lens 31, so that the capacitance value generated by the two capacitor blocks 34 through the objective lens 31 is a constant value. When impurities adhere to the outer surface of the objective lens 31 or the objective lens 31 is worn, the capacitance value between the two capacitor blocks 34 will change. When the impurities on the objective lens 31 increase, the capacitance value will decrease. The image generated by the objective lens 31 will be input into the image intensifier 32. The image intensifier 32 converts the optical image projected on the photocathode into an electronic image, and then focuses the electronic image through an electronic lens and accelerates it to be projected onto the fluorescent screen, and finally generates an enhanced visible light image. The image generated by the image intensifier 32 will be input into the image processor 33. The image processor 33 consists of an input end, a processing unit and an output end. Among them, the input end is responsible for transmitting the original image to the processing unit, the processing unit is responsible for processing and analyzing the image and outputting the processed information, and the output end is responsible for transmitting the processed image to the display interface or other devices.

[0045] like Figure 2 As shown, a groove 141 is formed on the limiting plate 14, and the edge of the objective lens 31 matches the groove 141;

[0046] Specifically, the groove 141 is used to place the objective lens 31 , so that the objective lens 31 is fixed on the limiting plate 14 through the limiting plate 14 and the capacitor block 34 , and it is also convenient for the capacitor block 34 to be electrically connected to the objective lens 31 .

[0047] like Figure 1 As shown, a connecting member 4 is provided on the outer wall of the cylinder 12, and the connecting member 4 is fixedly connected to the cylinder 12;

[0048] Specifically, the connecting member 4 is used to connect to the external wall so that the device is fixed on the wall.

[0049] like Figure 1 As shown, a control terminal 5 is provided on the housing 21, and a control panel is provided inside the control terminal 5;

[0050] Specifically, the control panel is electrically connected to the capacitor block 34, the control panel is electrically connected to the solenoid valve 29, and the control panel is electrically connected to the spring 28. The control panel controls the solenoid valve 29 and the spring 28 to be energized by changing the capacitance value between the two capacitor blocks 34. When the capacitance value is lower than the set value, it means that there are too many impurities attached to the outer surface of the objective lens 31 and the normal use of the device has been affected. The control panel controls the solenoid valve 29 and the spring 28 to work by changing the capacitance value.

[0051] Working principle: The device maps the external scene through the objective lens 31. The image generated by the objective lens 31 is input to the image intensifier 32, and then processed by the image intensifier 32. The processed image intensifier 32 is input to the image processor 33. During long-term use, impurities will adhere to the outer surface of the objective lens 31, so that the capacitance value between the two capacitor blocks 34 will change. The control panel knows the state of the objective lens 31 through the changed capacitance value, and then controls the electromagnetic valve 29 and the spring 28 to work. The spring 28 will retract after being energized, thereby driving the extension rod B26 to move, and the extension rod B 26 drives one end of the transmission rod 23 to move. Since a rotating rod 24 is provided in the middle of the transmission rod 23, the other end of the transmission rod 23 drives the extension rod A25 to move in the opposite direction. The extension rod A25 drives the brush 27 to move, so that the brush 27 contacts the outer surface of the objective lens 31 through the through hole 111. During the movement of the transmission rod 23, the solenoid valve 29 will be energized and opened to spray the cleaning liquid on the outer surface of the objective lens 31, so that the objective lens 31 is automatically cleaned by the cleaning component 2 to prevent dust accumulation on the objective lens 31 due to long-term use or external factors, which affects the normal use of the entire device.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Low light level night vision full color explosion-proof camera, characterized by: The camera comprises a main body (1), a cleaning assembly (2) and a lens assembly (3); the main body (1) comprises a front cover (11), a barrel (12) and a rear cover (13); the front cover (11) is threadedly connected to the barrel (12); a limiting plate (14) is provided on the inner wall of the front cover (11); the limiting plate (14) is fixedly connected to the front cover (11); a lens assembly (3) is provided on one side of the limiting plate (14); the lens assembly (3) is used for imaging; the lens assembly (3) is located on a side of the limiting plate (14) close to the barrel (12); a cleaning assembly (2) is provided on the front cover (11); the cleaning assembly (2) is used for cleaning the camera; the rear cover (13) is threadedly connected to the barrel (12); the rear cover (13) is located on a side of the barrel (12) away from the front cover (11).

2. The low-light-level night-vision full-color explosion-proof camera according to claim 1, characterized in that: The cleaning assembly (2) comprises a shell (21) and an extension rod, wherein the shell (21) is fixedly connected to the outer wall of the front cover (11), a transmission rod (23) is arranged in the shell (21), a rotating rod (24) is arranged in the middle of the rod body of the transmission rod (23), and the rotating rod (24) is rotatably connected to the inner wall of the shell (21), and an extension rod A (25) and an extension rod B (26) are arranged at both ends of the transmission rod (23), the extension rod A (25) is rotatably connected to the transmission rod (23), and the extension rod A brush (27) is provided at one end of the extension rod A (25), the brush (27) is fixedly connected to the extension rod A (25), the extension rod B (26) is rotatably connected to the transmission rod (23), a spring (28) is provided at one end of the extension rod B (26), one end of the spring (28) is fixedly connected to the transmission rod (23), the other end of the spring (28) is fixedly connected to the inner wall of the shell (21), the spring (28) is electrically connected to an external power supply, and a liquid storage component (22) is provided on the inner wall of the shell (21).

3. The low-light-level night-vision full-color explosion-proof camera according to claim 2 is characterized in that: The front cover (11) is provided with a through hole (111), and the through hole (111) matches with the brush (27).

4. The low-light-level night-vision full-color explosion-proof camera according to claim 3 is characterized by: The liquid storage component (22) comprises a reservoir (221) and a buoyancy ball (222); the reservoir (221) is fixedly connected to the inner wall of the shell (21); a solenoid valve (29) is provided at the bottom of the reservoir (221); the reservoir (221) is connected to the solenoid valve (29) by a pipeline; the output end of the solenoid valve (29) is located on the outer wall of the shell (21); a water inlet (211) is provided at the top of the shell (21); the water inlet (211) is connected to the reservoir (221); a Hall element (223) is provided at the bottom of the reservoir (221); a buoyancy ball (222) is provided in the reservoir (221); and a magnetic block (224) is provided in the buoyancy ball (222).

5. The low-light-level night-vision full-color explosion-proof camera according to claim 4 is characterized by: The lens assembly (3) comprises an objective lens (31), an image intensifier (32) and an image processor (33); the objective lens (31) is located on one side of a limiting plate (14); a capacitor block (34) is provided at the edge of the objective lens (31); two capacitor blocks (34) are provided; the capacitor block (34) is electrically connected to the objective lens (31); the capacitor block (34) is fixedly connected to the limiting block; the image intensifier (32) is located in the barrel (12); the input end of the image intensifier (32) is connected to the output end of the objective lens (31); the image processor (33) is located at one end of the image intensifier (32) away from the objective lens (31); the input end of the image processor (33) is connected to the output end of the image intensifier (32).

6. The low-light-level night-vision full-color explosion-proof camera according to claim 5, characterized in that: The limiting plate (14) is provided with a groove (141), and the edge end of the objective lens (31) matches the groove (141).

7. The low-light-level night-vision full-color explosion-proof camera according to claim 6, characterized in that: The outer wall of the cylinder (12) is provided with a connecting piece (4), and the connecting piece (4) is fixedly connected to the cylinder (12).

8. The low-light-level night-vision full-color explosion-proof camera according to claim 7, characterized in that: A control terminal (5) is provided on the housing (21), and a control panel is provided inside the control terminal (5).

Images