Industrial television with lens protection function

Abstract

The utility model provides an industrial television with lens protection, comprising a support device, a sleeve device, a machine body device and a shielding device, the sleeve device is installed on the support device, the sleeve device comprises a cylinder body installed on the support device and cylinder covers fixed at two ends of the cylinder body, the machine body device comprises a lens installed on the cylinder covers, and the shielding device is installed on the support device. The shielding device comprises a rotary driving part installed on the cylinder cover, a coupler fixedly installed on a rotary shaft of the rotary driving part and an eccentric wheel fixed to the end of the coupler, and the coupler rotatably penetrates through the cylinder cover. The eccentric wheel can shield and protect the lens and the air passage gap after rotating, and the lens and the air passage gap can be protected by rotating the eccentric wheel relative to the barrel cover, so that silica dust is prevented from entering the barrel body from the air passage gap, the camera body is protected, and the service life of the industrial television is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric communication, in particular to an industrial television with lens protection. Background Art

[0002] When using industrial television to monitor a blast furnace, in order to protect the accuracy of imaging, the imaging lens needs to be cooled and protected to avoid deformation of the lens caused by excessive temperature. Therefore, air outlet slots are often arranged around the industrial television, and the air outlet slots connect the inside and outside of the industrial television. The tail of the industrial television is connected to the cooling system, and the cooling protection gas injected into the industrial television is blown onto the lens through the air outlet slots. Under the flow cooling of the gas, the temperature of the lens is moderately maintained within the undeformed limit, such as a high-temperature industrial television dust protection device disclosed in Patent No.: CN202322202155.0, which specifically has corresponding air holes opened along the radial direction of the lens, and cooling gas can be blown to the surface of the lens through the air holes to achieve dust cleaning and cooling protection of the protective glass sheet. When the industrial TV stops running, especially when the cooling gas stops being delivered, the silicon dust in the blast furnace can easily enter the interior of the industrial TV through the air outlet slots, especially when the cooling gas delivery is suddenly stopped. Due to the instantaneous negative pressure generated by the air outlet slots, the silicon dust in the furnace enters the industrial TV through the air outlet slots under the absorption of negative pressure. When the cooling protective gas is input again, the silicon dust can easily collide with the photosensitive components inside the industrial TV, causing double damage of static electricity and impact, affecting the service life of the industrial TV. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the silicon dust in the blast furnace easily enters the interior of the industrial television through the air outlet slot hole near the lens, thereby affecting the service life of the industrial television.

[0004] The utility model adopts the following technical solution to solve the technical problem: an industrial television with lens protection, comprising a bracket device, a sleeve device installed on the bracket device, a body device arranged in the sleeve device and a shielding device arranged on the sleeve device, wherein the sleeve device is installed on the bracket device, the sleeve device comprises a barrel mounted on the bracket device and a barrel cover fixed at both ends of the barrel, the body device comprises a lens mounted on the barrel cover, an airway gap connected to the barrel around the lens on the barrel cover, the shielding device comprises a rotating driving member mounted on the barrel cover, a coupling fixedly mounted on the rotating shaft of the rotating driving member and an eccentric wheel fixed on the end of the coupling, the coupling rotatably passes through the barrel cover, and the eccentric wheel can shield and protect the lens and the airway gap after rotation.

[0005] Furthermore, the industrial television further comprises a body device, the sleeve device further comprises a mounting frame mounted on the sleeve cover, and the body device further comprises a camera body fixed on the mounting frame.

[0006] Furthermore, a camera hole is opened on the tube cover, the lens is fixed in the camera hole, and the camera body is arranged corresponding to the lens.

[0007] Furthermore, a fixing ring is fixedly mounted on the lens, and the fixing ring and the barrel cover clamp and fix the lens.

[0008] Furthermore, a cross fixing frame is installed on the fixing ring, and the cross fixing frame extends out of the lens.

[0009] Furthermore, a lower step ring groove is provided on the tube cover around the camera hole, and an upper step ring groove is also provided on the tube cover around the lower step ring groove. A dustproof hanging wall is provided at the opening of the camera hole, an air ring is installed in the upper step ring groove, and the air ring cover is provided on the lower step ring groove, and the airway gap is the gap left between the air ring and the dustproof hanging wall.

[0010] Furthermore, a vent hole is provided on the cylinder cover, and the airway gap is connected to the cylinder body through the top of the lower step ring groove and the vent hole of the cylinder cover.

[0011] Furthermore, the support device includes a base and a support mounted on the base, and the cylinder is fixedly mounted on the support.

[0012] Furthermore, two fastening belts are fixedly mounted on the cylinder, and the fastening belts are wrapped around the outer surface of the cylinder.

[0013] The beneficial effect of the utility model is that a shielding device is added to the tube cover, and the rotating driving member in the shielding device drives the eccentric wheel to rotate through the coupling. After the eccentric wheel rotates, the gap between the lens and the airway can be shielded, thereby protecting the lens from being affected by high temperature. At the same time, the airway gap can be blocked to prevent silicon dust from entering the airway gap, thereby increasing the service life of the industrial television. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a stereogram of the industrial television with lens protection of the utility model;

[0016] Figure 2 yes Figure 1 Exploded diagram of

[0017] Figure 3 yes Figure 1 Side view of

[0018] Figure 4 is along Figure 3 Sectional view of AA in the middle;

[0019] Figure 5 is along Figure 3 Cross-sectional view of the middle BB;

[0020] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle;

[0021] In the figure: the bracket device 10, the sleeve device 20, the body device 30, the shielding device 40, the base 110, the support 120, the cylinder 210, the cylinder cover 220, the mounting frame 230, the fastening belt 211, the sealing ring 221, the cooling hole 213, the camera hole 212, the upper step ring groove 213, the lower step ring groove 214, the dustproof wall 216, the camera body 310, the lens 320, the fixing ring 321, the cross fixing frame 322, the air ring 223, the airway gap 222, the rotating drive member 410, the coupling 420, and the eccentric wheel 430. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0023] like Figures 1 to 6 As shown, this embodiment provides an industrial television with lens protection, including a bracket device 10, a sleeve device 20 installed on the bracket device 10, a body device 30 arranged in the sleeve device 20, and a shielding device 40 arranged on the sleeve device 20.

[0024] like Figures 1 to 5 As shown, the bracket device 10 includes a base 110 and a support 120 installed on the base 110. The base 110 is fixed on the side wall of the blast furnace. The support 120 is installed on the base 110 after adjusting the angle. The sleeve device 20 is fixed on the support 120. The body device 30 in the sleeve device 20 is synchronously adjusted according to the monitoring angle of the blast furnace.

[0025] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the sleeve device 20 includes a cylinder 210 fixed on the bracket device 10, a cylinder cover 220 fixed at both ends of the cylinder 210, and a mounting frame 230 arranged on the cylinder cover 220. The cylinder 210 is a columnar cavity structure, and the cylinder 210 is fixedly mounted on the support 120. Two fastening belts 211 are fixedly mounted on the cylinder 210, and the fastening belts 211 are wrapped around the outer surface of the cylinder 210, and the fastening belts 211 pass through the support 120. Under the fastening action of the fastening belts 211, the cylinder 210 is fixed on the support 120. The cylinder cover 220 is arranged on both sides of the cylinder body 210. A sealing ring 221 is installed on the cylinder cover 220. The sealing sleeve of the cylinder body 210 is arranged on the sealing ring 221. Under the action of the sealing ring 221, the connection gap between the cylinder cover 220 and the cylinder body 210 is sealed. The mounting frame 230 is in a flat plate state. The mounting frame 230 is fixedly mounted on the side of the cylinder cover 220 facing the cylinder body 210. A cooling hole 213 is opened on the cylinder cover 220 at one end of the cylinder body 210, and a camera hole 212 is opened on the cylinder cover 220 at the other end of the cylinder body 210. The cooling hole 213 and the camera hole 212 are both connected to the inner side of the cylinder body 10, and cooling protection gas can be injected into the cylinder body 210 through the cooling hole 213. The barrel cover 220 where the camera hole 212 is located is also provided with an upper step annular groove 213 and a lower step annular groove 214. The lower step annular groove 214 is provided around the camera hole 212, and the upper step annular groove 213 is provided around the lower step annular groove 214. A dustproof hanging wall 216 is provided protruding from the opening of the camera hole 212 toward the outside of the barrel body 210, and the side wall height of the dustproof hanging wall 216 is between the step surfaces of the lower step annular groove 214 and the upper step annular groove 213. The lower step annular groove 214 is also provided with a vent hole, and the vent hole 214 is connected to the inner and outer sides of the barrel cover 220. One side of the mounting frame 230 is fixed on the barrel cover 220, and the machine body device 30 is fixedly mounted on the mounting frame 230.

[0026] The body device 30 includes a camera body 310 fixedly mounted on the mounting frame 230 and a lens 320 fixed in the camera hole 212. The camera body 310 is arranged corresponding to the lens 320, and the camera body 310 can analyze the light refracted by the lens 320 to generate a video signal and transmit it to the video terminal.

[0027] The lens 320 is preferably a circular lens structure. The lens 320 is clamped in the port of the camera hole 212 facing the barrel 120. A fixing ring 321 is fixedly installed on the side of the lens 320 away from the camera hole 212. A cross fixing frame 322 is installed on the fixing ring 321. The cross fixing frame 322 extends out of the lens 320. The cross fixing frame 322 is pressed and fixed on the barrel cover 220 by screws. Under the clamping and fixing of the fixing ring 321 and the barrel cover 220, the position of the lens 320 relative to the camera hole 212 is fixed. An air ring 223 is fixedly installed in the upper step ring groove 213 of the barrel cover 220. The air ring 223 covers the air vent above the lower step ring groove 214. An airway gap 222 is left between the air ring 223 and the dustproof hanging wall 216. The air vent on the barrel cover 220, the upper part of the lower step ring groove 214 and the airway gap 222 are all connected to the barrel 210. The cooling gas in the cylinder 210 can be discharged to the top of the dustproof wall 216 of the lens 320 through the vent holes, the lower stage groove 214 and the airway gap 222 in sequence. The cooling gas can form a protective gas wall above the dustproof wall 216 to prevent silicon dust from the blast furnace from entering the cylinder during operation.

[0028] like Figure 2 and Figure 5 As shown, the shielding device 40 includes a rotating driving member 410 mounted on the cylinder cover 220 , a coupling 420 fixedly mounted on the rotating shaft of the rotating driving member 410 , and an eccentric wheel 430 fixed on the end of the coupling 420 .

[0029] The rotating drive member 410 is fixed away from the mounting frame 230. The rotating drive member 410 is preferably a servo motor, which is controlled by a half-turn controller, and the rotation angle each time is 180°. In other embodiments, the rotating drive member 410 can also be a stepping rotary cylinder, and its rotation angle is also 180°. One end of the coupling 420 is fixed on the rotating drive member 410, and the other end of the coupling 420 passes through the barrel cover 220. The eccentric wheel 430 is set on one side of the lens 320. When the eccentric wheel 430 rotates, the airway gap 222 can be blocked. When the temperature of the lens 320 is too high or it stops being used, the eccentric wheel 430 can be used to block the airway gap 222, and at the same time provide sunshade for the lens 320 to prevent high temperature from affecting the imaging focal length of the lens 320. The eccentric wheel 430 is preferably a water drop wheel, the small end of the eccentric wheel 430 is fixed on the coupling 420, and the large end of the eccentric wheel 430 can be rotated to block the dustproof wall 216 and the airway gap 222.

[0030] When the above-mentioned industrial television with lens protection is in use and needs to be monitored, the rotating driving member 410 is started, and the rotating driving member 410 drives the eccentric wheel 430 to rotate through the coupling 420. After the eccentric wheel 430 rotates a stroke, the monitoring of the lens 320 and the airway gap 222 is released. The lens 320 collects the combustion conditions in the blast furnace and the heating conditions of the workpiece and transmits them to the camera body 310. The camera body 310 generates a video signal based on the collected information of the lens 320 and transmits it to the video terminal. During the use of the camera body 310, cooling protection gas can be injected into the cylinder 210 through the cooling hole 213 to cool the camera body 310 is cooled and protected. The gas can be blown to the top of the dustproof wall 316 through the vent holes on the cylinder cover 220, the top of the lower step ring groove 214 and the airway gap 222 to cool and dustproof the lens 320. When the monitoring journey of the industrial television is stopped, the rotating drive member 410 is started again. The rotating drive member 410 drives the eccentric wheel 430 to rotate through the coupling 420. The eccentric wheel 430 again shields and protects the lens 320 and the airway gap 222 in the camera hole 212 to avoid damage to the lens 320 caused by high temperature. At the same time, it prevents the silicon dust in the blast furnace from entering the cylinder 210 and damaging the camera body 310.

[0031] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An industrial television with lens protection, comprising a bracket device (10), a sleeve device (20) mounted on the bracket device (10), a body device (30) arranged in the sleeve device (20), and a shielding device (40) arranged on the sleeve device (20), wherein the sleeve device (20) is mounted on the bracket device (10), the sleeve device (20) comprises a barrel (210) mounted on the bracket device (10) and barrel covers (220) fixed at both ends of the barrel (210), the body device (30) comprises a lens (320) mounted on the barrel cover (220), and is characterized in that: There is an airway gap (222) on the barrel cover (220) around the lens (320) and connected to the barrel body (210). The shielding device (40) includes a rotating drive member (410) installed on the barrel cover (220), a coupling (420) fixedly installed on the rotating shaft of the rotating drive member (410), and an eccentric wheel (430) fixed on the end of the coupling (420). The coupling (420) can rotatably pass through the barrel cover (220), and the eccentric wheel (430) can shield and protect the lens (320) and the airway gap (222) after rotation.

2. The industrial television with lens protection according to claim 1, characterized in that: The industrial television further comprises a body device (30), the sleeve device (20) further comprises a mounting frame (230) mounted on the sleeve cover (220), and the body device (30) further comprises a camera body (310) fixed on the mounting frame (230).

3. The industrial television with lens protection according to claim 2, characterized in that: The barrel cover (220) is provided with a camera hole (212), the lens (320) is fixed in the camera hole (212), and the camera body (310) is arranged corresponding to the lens (320).

4. The industrial television with lens protection according to claim 1, characterized in that: A fixing ring (321) is fixedly mounted on the lens (320), and the fixing ring (321) and the barrel cover (220) clamp and fix the lens (320).

5. The industrial television with lens protection according to claim 4, characterized in that: A cross fixing frame (322) is mounted on the fixing ring (321), and the cross fixing frame (322) extends out of the lens (320).

6. The industrial television with lens protection according to claim 3, characterized in that: The tube cover (220) is provided with a lower step annular groove (214) around the camera hole (212), and the tube cover (220) is also provided with an upper step annular groove (213) around the lower step annular groove (214). A dustproof hanging wall (216) is provided at the opening of the camera hole (212). An air ring (223) is installed in the upper step annular groove (213), and the air ring (223) is covered on the lower step annular groove (214). The airway gap (222) is the gap left between the air ring (223) and the dustproof hanging wall (216).

7. The industrial television with lens protection according to claim 6, characterized in that: The cylinder cover (220) is provided with a vent hole, and the airway gap (222) is connected to the cylinder body (210) through the top of the lower step annular groove (214) and the vent hole of the cylinder cover (220).

8. The industrial television with lens protection according to claim 1, characterized in that: The support device (10) comprises a base (110) and a support (120) mounted on the base (110), and the cylinder (210) is fixedly mounted on the support (120).

9. The industrial television with lens protection according to claim 1, characterized in that: Two fastening belts (211) are fixedly mounted on the cylinder (210), and the fastening belts (211) are wrapped around the outer surface of the cylinder (210).

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