Video camera lens cleaning device

Abstract

The utility model discloses a video camera lens cleaning device which comprises a shell, a heat insulation box, a cold conduction sheet, a fixing plate, an air cylinder, a semiconductor chilling plate and a windshield wiper. A heat insulation box is arranged in the shell between the lens and the infrared lamp, the opening end of the heat insulation box abuts against the front side wall of the shell, a plurality of cold conduction pieces arranged at intervals are longitudinally arranged in the heat insulation box, strip-shaped channels are formed in the front side wall, corresponding to the cold conduction pieces, of the shell, and rubber rings are embedded in the strip-shaped channels. A fixing plate is welded to the end, away from the strip-shaped channel, of each cold conduction piece, a cylinder body of the air cylinder is transversely fixed in the shell, and a piston rod of the air cylinder penetrates through the heat insulation box to be fixedly connected with the fixing plate. A semiconductor chilling plate is arranged at the bottom of the cold conducting plate, the top of the semiconductor chilling plate penetrates through the bottom wall of the heat insulation box to be in contact with the cold conducting plate, and the bottom of the semiconductor chilling plate is arranged in the shell; and a windshield wiper is rotationally arranged on the shell above the lens.

Description

Technical field:

[0001] The utility model relates to the technical field of lens cleaning, in particular to a video camera lens cleaning device. Background technology:

[0002] Cameras are commonly installed on power poles and towers for monitoring purposes at construction sites. The cameras generally include a housing, lens, infrared light, image sensor, and flexible printed circuit board. Due to the remote location of the poles and towers and the high installation position of the cameras, the camera lenses are exposed to long periods of blowing sand and rain, which may block the line of sight and seriously interfere with the camera's clarity.

[0003] At present, workers have to climb up hundreds of meters of power poles to clean camera lenses. The cleaning efficiency is low, and there are certain personal safety hazards when workers go up to clean, and the operation risk is high. In addition, there are a large number of cameras on the construction site, which are difficult to maintain, seriously consuming manpower and material resources, and the cleaning cost is high. Utility model content:

[0004] The utility model aims to provide a video camera lens cleaning device.

[0005] The purpose of the utility model is implemented by the following technical solution: a video camera lens cleaning device, which includes a housing, a heat insulation box, a cooling plate, a fixing plate, a cylinder, a semiconductor cooling plate and a wiper;

[0006] The heat insulation box is arranged in the shell between the lens and the infrared lamp, the opening end of the heat insulation box is in contact with the front side wall of the shell, a plurality of cooling fins arranged at intervals are longitudinally arranged in the heat insulation box, a strip channel is opened on the front side wall of the shell corresponding to each cooling fin, and a rubber ring is embedded in each strip channel;

[0007] The fixing plate is welded on the end of each of the cooling fins away from the strip-shaped channel, the cylinder body of the cylinder is transversely fixed in the shell, and the piston rod of the cylinder passes through the heat insulation box and is fixedly connected to the fixing plate;

[0008] The semiconductor cooling plate is arranged at the bottom of the cooling plate, the top of the semiconductor cooling plate passes through the bottom wall of the heat insulation box and contacts the cooling plate, and the bottom of the semiconductor cooling plate is placed in the outer shell; the wiper is rotatably mounted on the outer shell above the lens.

[0009] Preferably, the cooling plate is made of aluminum sheet.

[0010] Preferably, the thermal insulation box is made of foam material.

[0011] Preferably, a heat dissipation structure is provided at the bottom of the semiconductor refrigeration sheet, and the heat dissipation structure includes a shell, a heat sink and a fan. The shell having an L-shaped longitudinal section is provided at the bottom cover of the shell, and a heat dissipation channel is formed between the shell and the bottom surface of the shell; the heat sink is fixed at the bottom of the semiconductor refrigeration sheet, and the heat sink passes through the bottom wall of the shell and is placed in the heat dissipation channel, and the fan is fixed on one side of the exhaust port in the heat dissipation channel.

[0012] Advantages of the utility model: the utility model is provided with a semiconductor refrigeration plate, and the cold energy is transferred to the cooling plate through the cooling end of the semiconductor refrigeration plate. The cooled cooling plate contacts the outside air, and the moisture in the air condenses into condensed water. When the cooling plate enters the heat insulation box through the strip channel, the rubber ring scrapes the condensed water on the surface of the cooling plate, so that the condensed water remains on the outer surface of the outer shell. A rotatable wiper is used on the outer shell above the lens. During the rotation of the wiper, the condensed water gathered in the strip channel is swept across the lens, so as to achieve the purpose of cleaning the lens. In this way, the problems of workers having to climb up for cleaning, difficulty in adding water, certain personal safety hazards, and low cleaning efficiency are solved. Description of the drawings:

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creativity and labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 yes Figure 1 AA section view.

[0016] The components in the accompanying drawings are marked as follows: outer shell 1, strip channel 1.1, heat insulation box 2, cooling plate 3, fixing plate 4, cylinder 5, semiconductor cooling plate 6, heat dissipation structure 7, shell 7.1, heat sink 7.2, fan 7.3, wiper 8, lens 9, infrared lamp 10, rubber ring 11, wiper motor 12, heat dissipation channel 13. Specific implementation method:

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-Figure 2 As shown, the video camera lens cleaning device comprises a housing 1, a heat insulation box 2, a cooling plate 3, a fixing plate 4, a cylinder 5, a semiconductor cooling plate 6, a heat dissipation structure 7 and a wiper 8;

[0019] A heat insulation box 2 is provided in the housing 1 between the lens 9 and the infrared lamp 10. The heat insulation box 2 is made of foam material and is used to prevent the loss of cold. The open end of the heat insulation box 2 abuts against the front side wall of the housing 1. A plurality of cooling plates 3 are longitudinally provided at intervals in the heat insulation box 2. The cooling plates 3 use aluminum sheets. The cold generated by the semiconductor refrigeration sheet 6 is transferred to the aluminum sheets. The aluminum sheets are used as heat conduction materials to cause condensation on the aluminum sheets in contact with the air. The side walls are respectively provided with strip channels 1.1, which facilitate the cooling fins 3 to pass in and out of the corresponding strip channels 1.1 and come into contact with the air, so that condensed water condenses on the cooling fins 3 outside the housing 1. A rubber ring 11 is embedded in each strip channel 1.1, and the rubber ring 11 is in close contact with the cooling fins 3. When the cooling fins 3 enter the corresponding strip channels 1.1, the rubber ring 11 can prevent the condensed water condensed on the cooling fins 3 from entering the strip channels 1.1 of the housing 1.

[0020] A fixing plate 4 is welded on the end of each cooling fin 3 away from the strip channel 1.1, and each cooling fin 3 is fixedly connected to form a whole through the fixing plate 4. The cylinder body of the cylinder 5 is transversely fixed in the shell 1, and the piston rod of the cylinder 5 passes through the heat insulation box 2 and is fixedly connected to the fixing plate 4. The fixing plate 4 is controlled by the cylinder 5 to drive each cooling fin 3 to move as a whole in the heat insulation box 2, so that each cooling fin 3 passes in and out of the corresponding strip channel 1.1. When each cooling fin 3 passes through the outside of the shell 1 through the strip channel 1.1, an air flow channel is formed between two adjacent cooling fins 3 exposed to the air;

[0021] A semiconductor cooling sheet 6 is provided at the bottom of the cooling sheet 3. The semiconductor cooling sheet 6 is an existing device. Its working principle is based on the Peltier effect, that is, when a circuit composed of two different conductors A and B is passed through a direct current, in addition to Joule heat, some other heat will be released at the joint, while the other joint absorbs heat. The heat absorbed and released is proportional to the current intensity. The top of the semiconductor cooling sheet 6 passes through the bottom wall of the heat insulation box 2 and contacts the cooling sheet 3. The bottom of the semiconductor cooling sheet 6 is placed in the shell 1. The semiconductor cooling sheet 6 transfers coldness to the cooling sheet 3, so that the cooling sheet 3 The cooling plate 3 exposed to the air contacts with the surrounding air to generate condensed water. The cylinder 5 controls the cooling plate 3 to enter the heat insulation box 2 through the strip channel 1.1. The condensed water on the cooling plate 3 exposed to the air is scraped off by the rubber ring 11, so that the condensed water remains on the outer surface of the housing 1. A wiper motor 12 is installed in the housing 1 above the lens 9. The output shaft of the wiper motor 12 passes through the front side wall of the housing 1 and is fixed to the end of the wiper 8. The wiper motor 12 controls the wiper 8 to rotate, and the condensed water at the strip channel 1.1 is swept to the lens 9, so as to achieve the purpose of cleaning the lens 9.

[0022] A heat dissipation structure 7 is provided at the bottom of the semiconductor refrigeration plate 6. The function of the heat dissipation structure 7 is mainly to dissipate heat for the heating end of the refrigeration plate. By actively dissipating heat to reduce the temperature of the heating end, the temperature of the cooling end will also drop accordingly, thereby reaching a lower temperature; the heat dissipation structure 7 includes a shell 7.1, a heat sink 7.2 and a fan 7.3. A shell 7.1 with an L-shaped longitudinal section is provided at the bottom cover of the shell 1, and a heat dissipation channel 13 is formed between the shell 7.1 and the bottom surface of the shell 1; a heat sink 7.2 is fixed at the bottom of the semiconductor refrigeration plate 6, and the heat sink 7.2 passes through the bottom wall of the shell 1 and is placed in the heat dissipation channel 13. The heat sink 7.2 itself is a heat-conducting metal The heat source attached to the semiconductor refrigeration sheet 6 is transferred to it, and the heat is transferred to the heat dissipation channel 13 through the higher surface area. A fan 7.3 is fixed on one side of the exhaust port in the heat dissipation channel 13. When the cooling end of the semiconductor refrigeration sheet 6 transfers cold to the aluminum sheet, the heating end of the semiconductor refrigeration sheet 6 continues to generate heat, and the air is drawn by the fan 7.3 to circulate in the heat dissipation channel 13, and the heat on the heat sink 7.2 is taken out to achieve the purpose of cooling. In addition, starting the fan 7.3 can make a large amount of air be sucked into the heat dissipation channel 13 through each air flow channel, thereby increasing the air flow near the cooling sheet 3 and being more conducive to the formation of condensed water.

[0023] Working principle: Figure 1 As shown, in the initial state, the wiper 8 is horizontally arranged with the free end facing the left, the piston rod of the cylinder 5 is in a retracted state, and the cooling plate 3 is completely placed in the heat insulation box 2;

[0024] The wiper motor 12 is controlled to rotate forward, so that the wiper 8 rotates 180° counterclockwise; the piston rod is controlled to extend through the cylinder 5, so that the end of each cooling fin 3 passes through the strip channel 1.1, so that each cooling fin 3 is exposed to the air;

[0025] The semiconductor refrigeration sheet 6 is powered on, and the cooling end of the semiconductor refrigeration sheet 6 transfers cold energy to the cooling sheet 3, so that the cooling sheet 3 is cooled down, and the cooling sheet 3 exposed to the air contacts the surrounding air and condenses the moisture in the air; the piston rod is retracted by the cylinder 5, so that each cooling sheet 3 enters the heat insulation box 2 through the strip channel 1.1, and when the cooling sheet 3 passes through the strip channel 1.1, the rubber ring 11 scrapes off the condensed water on the surface of the cooling sheet 3, so that the condensed water droplets remain on the outer surface of the housing 1;

[0026] The wiper motor 12 is controlled to rotate in the reverse direction, so that the wiper 8 rotates 180° clockwise. During the rotation of the wiper 8, the condensed water at the strip channel 1.1 is swept across the lens 9, so as to achieve the purpose of cleaning the lens 9. The above process is repeated until the surface of the lens 9 is clean.

[0027] When the semiconductor refrigeration sheet 6 is powered on, the heating end of the semiconductor refrigeration sheet 6 releases heat, and the heat is transferred to the heat sink 7.2. To avoid the temperature inside the housing 1 from rising, the fan 7.3 is started to draw air so that air circulates in the heat dissipation channel 13 to remove the heat on the heat sink 7.2 and achieve the purpose of cooling.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A video camera lens cleaning device, characterized in that: It includes a shell, a heat insulation box, a cooling plate, a fixing plate, a cylinder, a semiconductor cooling plate and a wiper; The heat insulation box is arranged in the shell between the lens and the infrared lamp, the opening end of the heat insulation box is in contact with the front side wall of the shell, a plurality of cooling fins arranged at intervals are longitudinally arranged in the heat insulation box, a strip channel is opened on the front side wall of the shell corresponding to each cooling fin, and a rubber ring is embedded in each strip channel; The fixing plate is welded on the end of each of the cooling fins away from the strip-shaped channel, the cylinder body of the cylinder is transversely fixed in the shell, and the piston rod of the cylinder passes through the heat insulation box and is fixedly connected to the fixing plate; The semiconductor cooling plate is arranged at the bottom of the cooling plate, the top of the semiconductor cooling plate passes through the bottom wall of the heat insulation box and contacts the cooling plate, and the bottom of the semiconductor cooling plate is placed in the outer shell; the wiper is rotatably mounted on the outer shell above the lens.

2. The video camera lens cleaning device according to claim 1, characterized in that: The cooling plate is made of aluminum sheet.

3. The video camera lens cleaning device according to claim 1, characterized in that: The heat insulation box is made of foam material.

4. The video camera lens cleaning device according to any one of claims 1 to 3, characterized in that: A heat dissipation structure is provided at the bottom of the semiconductor refrigeration sheet, and the heat dissipation structure includes a shell, a heat sink and a fan. The shell with an L-shaped longitudinal section is provided at the bottom cover of the shell, and a heat dissipation channel is formed between the shell and the bottom surface of the shell; the heat sink is fixed at the bottom of the semiconductor refrigeration sheet, and the heat sink passes through the bottom wall of the shell and is placed in the heat dissipation channel, and the fan is fixed on one side of the exhaust port in the heat dissipation channel.

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