Endoscopic camera device for boiler

Abstract

The utility model provides an endoscopic camera device for a boiler. The endoscopic camera device comprises an outer tube, an inner tube, a mirror tube and a connecting device, a cold air cavity communicated with the outside is formed in the outer pipe; the inner pipe comprises a first part and a second part; an imaging cavity is formed in the first part, and a containing cavity is formed in the second part; two ends of the mirror tube are respectively connected with a boiler combustion chamber and a camera, and an air inlet of the first part is detachably connected with an air filter through a connecting device; in the shooting process of the camera, compressed air in the cold air cavity flows to cause an air suction effect to promote external air to enter the boiler combustion chamber through the imaging cavity to be output, and therefore the mirror tube is cooled. According to the utility model, the inner tube not communicated with the outer tube continuously extracts air from the outside to cool the mirror tube and the camera in the inner tube through the air suction effect generated by outputting compressed air into the boiler combustion chamber after the compressed air is introduced into the outer tube, so that the problem that the camera is polluted by directly inputting the compressed air is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of boiler endoscopic camera technology, and in particular relates to an endoscopic camera device for boilers. Background Technology

[0002] In the industrial production field, flame television monitoring systems play a crucial role in ensuring effective monitoring of the combustion status inside the furnace. As a type of color industrial television system, it can provide overall monitoring of the combustion status inside the furnace from the top of the furnace. Its working principle is to use a periscope lens inserted into the high-temperature zone inside the furnace to image the scene inside the furnace, such as flames, onto the target surface of a camera outside the furnace. This image is then converted into a video signal and transmitted via cable to a monitor in the control room, allowing operators to clearly view the real situation inside the furnace on the monitor screen. Since the periscope lens needs to be placed in the high-temperature zone inside the furnace, and the ambient temperature around the camera is also high, equipment cooling has become an essential step. Currently, compressed air is commonly used in the industry for cooling endoscopic flame television systems.

[0003] Since the cooling air source is compressed air, oil and water components are inevitably produced during the compression process. These components gradually adhere to the lens tube and camera during cooling, causing contamination. This contamination not only affects the light transmittance and image quality of the lens tube, resulting in blurry images that fail to accurately reflect the true state of the flame, but also damages the camera's internal precision electronic components, reducing its lifespan, increasing maintenance costs and replacement frequency, and severely impacting the normal operation and efficiency of the endoscopic flame television system. Utility Model Content

[0004] To address the problem described in the background art where compressed air containing oil and water contaminates the endoscopic camera during cooling, this invention proposes the following technical solution:

[0005] An endoscopic camera device for a boiler includes: an outer tube, an inner tube, a lens tube, and a connecting device; the outer tube has a cold air chamber communicating with the outside, the outlet of the cold air chamber is connected to the boiler combustion chamber, and the inlet of the cold air chamber is connected to an air compressor; the inner tube includes: a first part and a second part; one end of the first part extends into the cold air chamber, and the other end of the first part is fixedly connected to the second part; the first part has an imaging chamber, and the second part has a receiving chamber communicating with the imaging chamber; the lens tube extends into the imaging chamber, and both ends of the lens tube are respectively connected to the boiler combustion chamber and a camera; the outlet of the first part is connected to the combustion chamber, and the inlet of the first part is detachably connected to an air filter through the connecting device; during the camera's shooting process, the compressed air flow in the cold air chamber induces an air suction effect, causing external air to enter through the imaging chamber and exit into the boiler combustion chamber, thereby cooling the lens tube.

[0006] The air outlet of the cold air chamber extends in a direction parallel to the extension direction of the outer tube, and the air inlet of the cold air chamber extends in a direction perpendicular to the extension direction of the outer tube.

[0007] Furthermore, the extension direction of the air outlet of the receiving cavity is parallel to the extension direction of the outer tube, the extension direction of the air inlet of the cold air cavity is perpendicular to the extension direction of the outer tube, and the extension direction of the air inlet of the receiving cavity is parallel to the extension direction of the air inlet of the cold air cavity.

[0008] Further, the connecting device includes: two fixing rings, a cover, a moving component, a limiting block, and an adjusting rod; each fixing ring is fixedly disposed on the air inlet of the second part and the outer periphery of the air filter, and the fixing rings are detachably connected to each other through the moving component; the cover is provided with a positioning cavity for limiting the moving component, the limiting block is fixedly disposed on the opposite side walls of the positioning cavity, and a positioning hole is provided on the other opposite side wall of the positioning cavity; the moving component is disposed between the limiting blocks, and the moving component is engaged with the adjusting rod; one end of the adjusting rod is rotatably disposed in the positioning cavity, and the other end of the adjusting rod extends out of the positioning cavity; when the adjusting rod rotates, the adjusting rod drives the two sides of the moving component to extend and retract, so as to load and unload the second part and the air filter.

[0009] Further, the moving component includes: a rotating shaft, an upper toothed plate, and a lower toothed plate; the rotating shaft is rotatably disposed between the limiting blocks, and the outer periphery of the rotating shaft is respectively engaged with the upper toothed plate and the lower toothed plate; one of the limiting blocks passes through one end of the upper toothed plate, and the other end of the upper toothed plate passes through one of the positioning holes and is detachably connected to one of the fixing rings; the other limiting block passes through one end of the lower toothed plate, and the other end of the lower toothed plate passes through the other positioning hole and is detachably connected to one of the fixing rings.

[0010] Furthermore, one side of the upper toothed plate is provided with a first limiting groove that matches the limiting block, and one side of the lower toothed plate is provided with a second limiting groove that matches the limiting block.

[0011] Furthermore, a sealing ring is provided between the air inlet of the second part and the air filter.

[0012] Furthermore, the outer circumference of the rotating shaft is provided with a first gear and a second gear that are coaxially connected; the diameter of the second gear is larger than the diameter of the first gear, the first gear is meshed with the upper gear plate and the lower gear plate respectively, and the second gear is meshed with the adjusting rod.

[0013] Furthermore, the end of the upper toothed plate away from the positioning hole is bent to form a first bent portion, which abuts against the end face of the fixing ring; the end of the lower toothed plate away from the positioning hole is bent to form a second bent portion, which abuts against the end face of the fixing ring; when the upper toothed plate and the lower toothed plate move toward each other, the first bent portion and the second bent portion respectively pull the fixing ring to lock the first portion and the air filter.

[0014] Beneficial effects: This invention utilizes the air suction effect generated by compressed air being introduced into the outer pipe and then output to the boiler combustion chamber. This allows the inner pipe, which is not connected to the outer pipe, to continuously draw air from the outside to cool the internal lens tube and camera, thereby avoiding the problem of direct compressed air input contaminating the camera. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an endoscopic camera device for a boiler according to an embodiment of the present utility model;

[0016] Figure 2 This is a partial cross-sectional view of an endoscopic camera device for a boiler according to an embodiment of the present invention.

[0017] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of a mobile component according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of a mobile component according to an embodiment of the present utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

[0021] It should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent 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 patent.

[0022] Figure 1 This is a schematic diagram of the structure of an endoscopic camera device for a boiler according to an embodiment of the present invention. Figure 2 This is a partial cross-sectional view of an endoscopic camera device for a boiler according to an embodiment of the present invention.

[0023] Refer to together Figure 1 and Figure 2 An endoscopic camera device for a boiler according to an embodiment of the present invention includes: an outer tube 1, an inner tube 2, a lens tube 3, and a connecting device 4. The outer tube 1 has a cold air chamber 11 communicating with the outside. The outlet of the cold air chamber 11 is connected to the boiler combustion chamber, and the inlet of the cold air chamber 11 is connected to an air compressor 5. The inner tube 2 includes a first part 21 and a second part 22 fixedly connected. One end of the first part 21 extends into the cold air chamber 11, and the first part 21 has a receiving cavity 221. The second part 22 has an imaging cavity 211 communicating with the receiving cavity 221, and a camera 7 is installed in the imaging cavity 211. One end of the lens tube 3 is connected to the boiler combustion chamber, and the other end of the lens tube 3 is connected to the camera 7. The inlet of the first part 21 is detachably connected to an air filter 6 via the connecting device 4, and the outlet of the first part 21 is connected to the boiler combustion chamber.

[0024] During the monitoring of combustion in the boiler combustion chamber, the air compressor 5 outputs compressed air into the boiler combustion chamber through the air inlet of the outer pipe 1. The gas in the air-cooled chamber flows from the air inlet to the air outlet, thereby creating a negative pressure at the port of the outer pipe 1. Due to the air suction effect, the gas in the first part 21 simultaneously flows into the boiler combustion chamber, thereby promoting the inflow of external air into the inner pipe 2, which in turn cools the lens tube 3 and the camera 7.

[0025] Specifically, to further enhance the gas flow effect, in this embodiment, the extension direction of the outlet of the cold air cavity 11 is parallel to the extension direction of the outer tube 1, and the extension direction of the inlet of the cold air cavity 11 is perpendicular to the extension direction of the outer tube 1. The extension direction of the inlet of the imaging cavity 211 is perpendicular to the extension direction of the first part 21, and the extension direction of the outlet of the imaging cavity 211 is parallel to the extension direction of the first part 21. Furthermore, the extension direction of the inlet of the cold air cavity 11 is parallel to the extension direction of the inlet of the imaging cavity 211. The inlet and outlet of the cold air cavity 11 are located at both ends of the outer tube 1, and the inlet and outlet of the imaging cavity 211 are located at both ends of the first part 21, thereby ensuring that the gas flowing in the outer tube 1 or the inner tube 2 can fully drive the gas flow throughout the entire cavity.

[0026] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.

[0027] Reference Figure 3Specifically, the connecting device 4 includes: two fixing rings 41, a cover 42, a moving component 43, two limiting blocks 44, and an adjusting rod 45. Each fixing ring 41 is fixed to the air inlet of the first part 21 or the air outlet of the air filter 6 via a snap-fit ​​connection. The cover 42 has a positioning cavity 421 for installing the limiting moving component 43 and the adjusting rod 45. Limiting blocks 44 are fixedly installed on both side walls of the positioning cavity 421, and positioning holes 4211 are provided on the other opposite side walls of the positioning cavity 421. Each limiting block 44 is perpendicular to the side wall of the positioning cavity 421, extends relative to each other, and each limiting block 44 passes into the moving component 43 to prevent the moving component 43 from disengaging from the positioning cavity 421. The two sides of the moving component 43 protrude through the positioning holes 4211 and are fixedly connected to the fixing rings 41. The middle part of the moving component 43 is engaged with the rotating shaft 431. One end of the adjusting rod 45 extends out of the positioning cavity 421 to form a handle for adjustment, and the other end of the adjusting rod 45 is rotatably disposed within the positioning cavity 421. Preferably, in this embodiment, the adjusting rod 45 is a worm gear, and the outer periphery of the end of the adjusting rod 45 near the positioning hole 4211 is threaded. The adjusting rod 45 and the cover 42 are detachably fixedly connected by threads. When the operator turns the handle of the adjusting rod 45, the adjusting rod 45 rotates, thereby driving the moving assembly 43 to perform telescopic movement. When the operator does not turn the handle of the adjusting rod 45, the adjusting rod 45 restricts the movement of the moving assembly 43, thereby locking the connection between the second part 22 and the air filter 6.

[0028] Figure 4 This is a schematic diagram of the structure of a mobile component according to an embodiment of the present utility model.

[0029] Reference Figure 4 Specifically, the moving component 43 includes a rotating shaft 431, an upper gear plate 432, and a lower gear plate 433. The rotating shaft 431 is rotatably disposed within the positioning cavity 421, and a first gear 4311 and a second gear 4312 are respectively provided on the outer periphery of the rotating shaft 431. The diameter of the first gear 4311 is smaller than the diameter of the second gear 4312, and both sides of the first gear 4311 mesh with the upper gear plate 432. A rack 8 is provided on one wide side of the upper gear plate 432 and one wide side of the lower gear plate 433. A first limiting groove 4321 is provided on the other wide side of the upper gear plate 432, and a second limiting groove 4331 is provided on the other wide side of the lower gear plate 433. Each limiting block 44 passes through either the first limiting groove 4321 or the second limiting groove 4331, and each limiting block 44 can move within either the first limiting groove 4321 or the second limiting groove 4331.

[0030] Figure 5 This is a schematic diagram of the internal structure of a mobile component according to an embodiment of the present utility model.

[0031] Reference Figure 5 Furthermore, to facilitate the replacement of the air filter by the operator, in this embodiment, the side of the upper toothed plate 432 away from the positioning hole 4211 is bent to form a first bent portion 4322, and the side of the lower toothed plate 433 away from the positioning hole 4211 is bent to form a second bent portion 4332. When the operator installs the air filter 6, the operator turns the adjusting rod 45, thereby causing the upper toothed plate 432 and the lower toothed plate 433 to move towards each other. The first bent portion 4322 and the second bent portion 4332 respectively pull the fixing ring 41, thereby making the first part 21 and the air filter 6 tightly connected to achieve the purpose of locking. In other embodiments, the upper toothed plate 432, the lower toothed plate 433 and the fixing ring 41 can also be detachably connected by screws or other connecting parts. In addition, in order to further increase the gas flow rate into the air filter 6, in this embodiment, a rubber ring or other annular sealing element is added at the connection between the air inlet of the imaging cavity 211 and the air filter 6.

[0032] In summary, this invention utilizes the air suction effect generated by compressed air being introduced into the outer pipe and then output to the boiler combustion chamber. This allows the inner pipe, which is not connected to the outer pipe, to continuously draw air from the outside to cool the internal lens tube and camera, thereby avoiding the problem of direct compressed air input contaminating the camera.

[0033] The above description describes specific embodiments of the utility model. Other embodiments are within the scope of the appended claims.

[0034] The terms “exemplary,” “example,” etc., used throughout this specification mean “serving as an example, instance, or illustration” and do not imply “preferred” or “advantageous” than other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques can be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.

[0035] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all fall within the protection scope of the embodiments of the present utility model.

[0036] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.

Claims

1. An endoscopic camera for a boiler, characterized by The utility model relates to a kind of cooling device for camera lens, including: Outer tube (1), inner tube (2), mirror tube (3) and connecting device (4);The outer tube (1) is equipped with with outside communication cold air cavity (11), the air outlet of the cold air cavity (11) is connected with boiler combustion chamber communication, the air inlet of the cold air cavity (11) is connected with air compressor (5) communication;The inner tube (2) includes: first part (21) and second part (22);The first part (21) one end enters the cold air cavity (11), the other end of the first part (21) is fixedly connected with the second part (22);The first part (21) is equipped with imaging cavity (211), the second part (22) is equipped with with the imaging cavity (211) communication containing cavity (221);The mirror tube (3) enters the imaging cavity (211), and the both ends of the mirror tube (3) are connected with boiler combustion chamber and camera (7) respectively;The air outlet of the first part (21) is communicated with the combustion chamber, and the air inlet of the first part (21) is detachably connected with air filter (6) by the connecting device (4);During the process of being shot by the camera (7), the compressed air flow in the cold air cavity (11) induces air suction effect to promote external air to enter into the boiler combustion chamber output by the imaging cavity (211), so as to cool the mirror tube (3).

2. An endoscope camera device for a boiler as defined in claim 1, characterized in that The extension direction of the air outlet of the cold air cavity (11) is parallel to the extension direction of the outer tube (1), and the extension direction of the air inlet of the cold air cavity (11) is perpendicular to the extension direction of the outer tube (1).

3. An endoscope camera for a boiler as defined in claim 1, characterized in that The extension direction of the air outlet of the containing cavity (221) is parallel to the extension direction of the outer tube (1), the extension direction of the air inlet of the cold air cavity (11) is perpendicular to the extension direction of the outer tube (1), and the extension direction of the air inlet of the containing cavity (221) is parallel to the extension direction of the air inlet of the cold air cavity (11).

4. An endoscope camera device for a boiler as defined in claim 3, characterized in that The connecting device (4) comprises two fixing rings (41), a cover (42), a moving assembly (43), limiting blocks (44) and an adjusting rod (45); each of the fixing rings (41) is fixedly arranged at the air inlet of the second part (22) and the outer periphery of the air filter (6) respectively, and the fixing rings (41) are detachably connected through the moving assembly (43); the cover (42) is internally provided with a positioning cavity (421) for limiting the moving assembly (43), the opposite two side walls of the positioning cavity (421) are respectively fixedly provided with the limiting blocks (44), and the other opposite side wall of the positioning cavity (421) is respectively provided with a positioning hole (4211); the moving assembly (43) is arranged between the limiting blocks (44), and the moving assembly (43) is in meshing connection with the adjusting rod (45); one end of the adjusting rod (45) is rotatably arranged in the positioning cavity (421), and the other end of the adjusting rod (45) penetrates out of the positioning cavity (421); when the adjusting rod (45) rotates, the adjusting rod (45) drives the two sides of the moving assembly (43) to stretch and shrink, so as to assemble and disassemble the second part (22) and the air filter (6).

5. An endoscope camera device for a boiler as defined in claim 4, characterized in that The moving assembly (43) comprises a rotating shaft (431), an upper toothed plate (432) and a lower toothed plate (433); the rotating shaft (431) is rotatably arranged between the limiting blocks (44), and the outer periphery of the rotating shaft (431) is in meshing connection with the upper toothed plate (432) and the lower toothed plate (433) respectively; one of the limiting blocks (44) penetrates into one end of the upper toothed plate (432), the other end of the upper toothed plate (432) penetrates out of one of the positioning holes (4211) and is detachably connected with one of the fixing rings (41); the other of the limiting blocks (44) penetrates into one end of the lower toothed plate (433), and the other end of the lower toothed plate (433) penetrates out of the other of the positioning holes (4211) and is detachably connected with one of the fixing rings (41).

6. An endoscope camera device for a boiler as defined in claim 5, characterized in that One side of the upper toothed plate (432) is provided with a first limiting groove (4321) matched with the limiting block (44), and one side of the lower toothed plate (433) is provided with a second limiting groove (4331) matched with the limiting block (44).

7. An endoscope camera as defined in claim 1, wherein A sealing ring is arranged between the air inlet of the second part (22) and the air filter (6).

8. An endoscope camera for a boiler as defined in claim 5, characterized in that The outer periphery of the rotating shaft (431) is respectively provided with a first gear (4311) and a second gear (4312) coaxially connected; the diameter of the second gear (4312) is greater than that of the first gear (4311), the first gear (4311) is in meshing connection with the upper toothed plate (432) and the lower toothed plate (433) respectively, and the second gear (4312) is in meshing connection with the adjusting rod (45).

9. An endoscope camera for a boiler as defined in claim 5, characterized in that The upper tooth plate (432) is bent to form a first bent portion (4322) at one end away from the positioning hole (4211), and the first bent portion (4322) abuts against the end face of the fixing ring (41); the lower tooth plate (433) is bent to form a second bent portion (4332) at one end away from the positioning hole (4211), and the second bent portion (4332) abuts against the end face of the fixing ring (41); when the upper tooth plate (432) and the lower tooth plate (433) move towards each other, the first bent portion (4322) and the second bent portion (4332) pull the fixing ring (41) respectively to lock the first part (21) and the air filter (6).

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