Detection instrument lens antifogging device

Abstract

The utility model discloses a lens antifogging device for a detection instrument, and relates to the technical field of lens antifogging. The detection instrument comprises a detection instrument body, the bottom end of the detection instrument body is provided with a lens barrel, the lens barrel is movably provided with a lens, the lens barrel is provided with an anti-fog component playing an anti-fog role on the lens, and the anti-fog component comprises a hollow sleeve arranged below the lens barrel and a micro air pump arranged at the bottom end of the detection instrument body. The output end of the micro air pump is connected with a connecting hose, and the connecting hose is connected with an L-shaped connecting pipe. According to the utility model, the demisting component can be installed on the lens barrel through the arranged fixing component, the flow of heat can be accelerated by adopting a wind blowing mode during demisting, so that the demisting efficiency can be improved, and meanwhile, when the lens is installed, the second heating electric wire can heat the interior of the lens barrel, and after the lens is installed, the lens barrel can be heated by the second heating electric wire. And fogging caused by moist air above the lenses can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of lens anti-fogging technology, specifically to an anti-fogging device for the lens of a testing instrument. Background Technology

[0002] The lens is a crucial component of the testing instrument, and its clarity affects the quality of the captured image. Lenses are prone to fogging when exposed to significant temperature differences. Fogging in camera lenses usually occurs when moving from a cold environment to a warm, humid one. When the camera temperature is lower than the ambient temperature, fogging is more likely to occur, causing inconvenience to the photographer. Furthermore, the condensation of fog into water droplets can damage the lens itself, leading to mold growth or even damage to the lens elements.

[0003] When defogging lenses, current technology generally relies on heating wires to heat the lenses and reduce the temperature difference with the environment to achieve the purpose of defogging. In order to avoid obstructing the lenses, heating wires are usually placed on the inside of the lens barrel. As a result, heat is transferred from the outside to the inside, allowing the fog to dissipate from both sides to the middle. Since there is no wind disturbance, the heat transfer speed is relatively slow, and the fog in the middle is generally difficult to dissipate for a long time, which makes it inconvenient to use.

[0004] Therefore, an anti-fogging device for the lens of a testing instrument is proposed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides an anti-fogging device for the lens of a testing instrument.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An anti-fogging device for a testing instrument lens includes a testing instrument body, a lens barrel at the bottom of the testing instrument body, a lens movably mounted on the lens barrel, and an anti-fogging component on the lens barrel to prevent fogging. The anti-fogging component includes a hollow sleeve located below the lens barrel and a miniature air pump located at the bottom of the testing instrument body. The output end of the miniature air pump is connected to a connecting hose, and an L-shaped connecting pipe is connected to the connecting hose. A rotating connecting pipe is rotatably mounted on the hollow sleeve and threadedly connected to the L-shaped connecting pipe. A first heating wire is disposed inside the hollow sleeve, and multiple evenly arranged exhaust pipes are disposed on the inner side of the hollow sleeve. A support ring is disposed inside the hollow sleeve, and the lens is disposed inside the hollow sleeve.

[0008] Furthermore, a first mounting groove is provided on the inner side of the lens barrel, and a second heating wire is provided inside the first mounting groove.

[0009] Furthermore, the hollow sleeve is provided with a fixing component for fixing it to the lens barrel. The fixing component includes a first disc disposed on the outside of the lens barrel and a second disc disposed on the top of the hollow sleeve. The first disc and the second disc are connected by a fixing bolt, and a fixing nut is threaded onto the fixing bolt.

[0010] Furthermore, a second mounting groove is provided at the bottom end of the lens barrel, and a first sealing gasket is provided inside the second mounting groove.

[0011] Furthermore, the hollow sleeve is provided with a protective component that protects the lens. The protective component includes a threaded sleeve at the bottom end of the hollow sleeve, and a sealing cover is threaded onto the outer side of the threaded sleeve.

[0012] Furthermore, a second sealing gasket is provided at the top of the support ring, and the lens is disposed between the first sealing gasket and the second sealing gasket.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model enables the installation of a defogging component on the lens barrel through a fixed component. During defogging, the use of wind power to blow the component can accelerate the flow of heat and thus improve the defogging efficiency. At the same time, when installing the lens, the second heating wire can heat the inside of the lens barrel. After the lens is installed, it can prevent the air above the lens from being humid and causing fogging.

[0015] 2. The protective components of this utility model allow the sealing cover to seal the hollow sleeve when it is not in use, thus protecting the lens inside. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a sectional view of the present invention;

[0018] Figure 3 This is an enlarged view of part A of this utility model.

[0019] Reference numerals: 1. Instrument body; 2. Lens tube; 3. Anti-fog component; 301. Miniature air pump; 302. Connecting hose; 303. L-shaped connecting pipe; 304. Rotating connecting pipe; 305. Hollow sleeve; 306. Exhaust pipe; 307. First heating wire; 4. Protective component; 401. Threaded sleeve; 402. Sealing cover; 5. Fixing component; 501. First disc; 502. Second disc; 503. Fixing bolt; 504. Fixing nut; 6. First mounting groove; 601. Second heating wire; 7. Lens; 8. Second mounting groove; 801. First sealing gasket; 9. Support ring; 901. Second sealing gasket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1-3As shown, a lens anti-fogging device for a testing instrument includes a testing instrument body 1, a lens barrel 2 at the bottom of the testing instrument body 1, a lens 7 movably mounted on the lens barrel 2, and an anti-fogging component 3 on the lens barrel 2 to prevent fogging of the lens 7. The anti-fogging component 3 includes a hollow sleeve 305 located below the lens barrel 2 and a miniature air pump 301 located at the bottom of the testing instrument body 1. The output end of the miniature air pump 301 is connected to a connecting hose 302, and an L-shaped connecting pipe 303 is connected to the connecting hose 302. The hollow sleeve 305... A rotating connecting pipe 304 is rotatably mounted on the lens barrel 2, and the rotating connecting pipe 304 is threadedly connected to the L-shaped connecting pipe 303. A first heating wire 307 is installed inside the hollow sleeve 305. Multiple evenly arranged exhaust pipes 306 are provided on the inner side of the hollow sleeve 305. A support ring 9 is provided inside the hollow sleeve 305. The lens 7 is placed inside the hollow sleeve 305. Specifically, the hollow sleeve 305 is mounted on the lens barrel 2 and can be fixed by the fixed member 5, which can also fix the lens 7. To facilitate lens replacement, when installing the hollow sleeve 305, the second heating wire 601 is first turned on, thus heating the inside of the lens barrel 2. After the lens 7 is installed, it can prevent fogging caused by moisture above the lens 7. After the lens 7 is installed, moisture will not enter the top of the lens 7 under the action of the first sealing gasket 801 and the second sealing gasket 901, thus further preventing fogging. When using the main body of the testing instrument 1, the first heating wire 307 is turned on, and the micro air pump 301 can discharge hot air through the exhaust pipe 306, thus quickly heating the lens 7 and preventing moisture in the air from condensing and producing fog. Since wind heating will accelerate the air flow, it can improve its defogging efficiency. When not in use, the sealing cover 402 is threaded onto the threaded sleeve 401, which can seal the lens barrel 2, thus preventing external dust from adhering to the surface of the lens 7 and also protecting the lens 7 from breakage.

[0025] like Figure 3 As shown, a first mounting groove 6 is provided on the inner side of the lens barrel 2, and a second heating wire 601 is provided inside the first mounting groove 6; specifically, the second heating wire 601 can heat the air inside the lens barrel 2 to prevent the air above the lens 7 from being too humid after it is installed, which would cause fogging on the lens 7.

[0026] like Figure 3As shown, the hollow sleeve 305 is provided with a fixing component 5 for fixing it to the lens barrel 2. The fixing component 5 includes a first disc 501 disposed on the outside of the lens barrel 2 and a second disc 502 disposed on the top of the hollow sleeve 305. The first disc 501 and the second disc 502 are connected by a fixing bolt 503, and a fixing nut 504 is threaded onto the fixing bolt 503. Specifically, the fixing bolt 503 and the fixing nut 504 can fix the hollow sleeve 305 and also limit the position of the lens 7.

[0027] like Figure 3 As shown, a second mounting groove 8 is provided at the bottom of the lens barrel 2, and a first sealing gasket 801 is provided inside the second mounting groove 8.

[0028] like Figure 3 As shown, a protective component 4 is provided on the hollow sleeve 305 to protect the lens 7. The protective component 4 includes a threaded sleeve 401 provided at the bottom end of the hollow sleeve 305, and a sealing cover 402 is threaded onto the outer side of the threaded sleeve 401. Specifically, the sealing cover 402 can seal the hollow sleeve 305, thus protecting the lens 7 inside.

[0029] like Figure 3 As shown, a second sealing gasket 901 is provided at the top of the support ring 9, and the lens 7 is disposed between the first sealing gasket 801 and the second sealing gasket 901. Specifically, the first sealing gasket 801 and the second sealing gasket 901 are soft gaskets, which can protect the lens 7 and prevent it from being squeezed and broken during installation. They can also seal the lens barrel 2 to prevent fogging on the top of the lens 7.

[0030] In summary: The detection instrument body 1 is equipped with a lens and can be a camera-type detection instrument, which is existing technology, so its model will not be described in detail here. The hollow sleeve 305 is placed on the lens barrel 2 and can be fixed by the fixed component 5. It can also fix the lens 7, making it easy to replace the lens 7. When installing the hollow sleeve 305, the second heating wire 601 is turned on first, so that the second heating wire 601 can heat the inside of the lens barrel 2. After the lens 7 is installed, it can prevent the air above the lens 7 from being humid and causing it to fog up. After the lens 7 is installed, under the action of the first sealing gasket 801 and the second sealing gasket 901, the moisture... Air will not enter the area above the lens 7, thus further preventing fogging on the top of the lens 7. When the main body 1 of the testing instrument is used, the first heating wire 307 is turned on, and the micro air pump 301 works to discharge hot air through the exhaust pipe 306, thus quickly heating the lens 7 and preventing moisture in the air from condensing and forming fog. Since wind heating will accelerate the airflow, it can improve its defogging efficiency. When not in use, the sealing cover 402 is threaded onto the threaded sleeve 401, which can seal the lens barrel 2, thus preventing external dust from adhering to the surface of the lens 7, and also protecting the lens 7 from breakage.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lens anti-fogging device for a testing instrument, comprising a testing instrument body (1), characterized in that, The bottom end of the detection instrument body (1) is provided with a lens barrel (2), and a lens (7) is movably disposed on the lens barrel (2). An anti-fog component (3) is provided on the lens barrel (2) to prevent fogging of the lens (7). The anti-fog component (3) includes a hollow sleeve (305) disposed below the lens barrel (2) and a miniature air pump (301) disposed at the bottom end of the detection instrument body (1). The output end of the miniature air pump (301) is connected to a connecting hose (302), and the connecting hose (302) is connected to... An L-shaped connecting pipe (303) is provided, and a rotating connecting pipe (304) is rotatably provided on the hollow sleeve (305). The rotating connecting pipe (304) is threadedly connected to the L-shaped connecting pipe (303). A first heating wire (307) is provided inside the hollow sleeve (305). A plurality of evenly arranged exhaust pipes (306) are provided on the inner side of the hollow sleeve (305). A support ring (9) is provided inside the hollow sleeve (305). The lens (7) is provided inside the hollow sleeve (305).

2. The anti-fogging device for a lens of a testing instrument according to claim 1, characterized in that, The lens barrel (2) has a first mounting groove (6) on its inner side, and a second heating wire (601) is provided inside the first mounting groove (6).

3. The anti-fogging device for the lens of a testing instrument according to claim 1, characterized in that, The hollow sleeve (305) is provided with a fixing component (5) for fixing it to the lens barrel (2). The fixing component (5) includes a first disc (501) disposed on the outside of the lens barrel (2) and a second disc (502) disposed on the top of the hollow sleeve (305). The first disc (501) and the second disc (502) are connected by a fixing bolt (503). A fixing nut (504) is threaded onto the fixing bolt (503).

4. The anti-fogging device for a testing instrument lens according to claim 1, characterized in that, The bottom end of the lens barrel (2) is provided with a second mounting groove (8), and a first sealing gasket (801) is provided inside the second mounting groove (8).

5. The anti-fogging device for a testing instrument lens according to claim 1, characterized in that, The hollow sleeve (305) is provided with a protective component (4) that protects the lens (7). The protective component (4) includes a threaded sleeve (401) at the bottom end of the hollow sleeve (305), and a sealing cover (402) is threaded onto the outer side of the threaded sleeve (401).

6. The anti-fogging device for a testing instrument lens according to claim 4, characterized in that, The top end of the support ring (9) is provided with a second sealing gasket (901), and the lens (7) is disposed between the first sealing gasket (801) and the second sealing gasket (901).

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