Visual pipeline connecting device

Abstract

The invention discloses a visual pipeline connecting device which comprises a supporting pipe used for being connected with a conveying pipeline. The observation tube is made of transparent glass and is coaxially arranged in the supporting tube; the at least one camera shooting assembly is arranged on the supporting pipe, and the camera shooting assembly is used for shooting fluid in the conveying pipeline through the observation pipe; and the at least one illumination assembly is arranged on the supporting tube, and the illumination assembly is used for providing an illumination light source for the camera shooting assembly. Clear visual monitoring of the interior of the high-pressure conveying pipeline can be achieved, the stability and reliability can be improved, the weight can be reduced, and the cost can be reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of pipe connection devices, and specifically relates to a visual pipe connection device. Background Technology

[0002] With the continuous refinement and intelligent development of industrial production, and the increasing demands for the safety and efficiency of pipeline systems, the functional requirements for pipeline connection devices are gradually shifting from simple connection functions to the ability to visually monitor the internal state of pipelines.

[0003] Currently, to meet the requirements of visual connections for high-pressure pipelines, existing technologies mainly employ increasing glass thickness to enhance the device's pressure resistance. These visual pipeline connection devices typically feature glass observation windows or holes at the pipeline connection points. By selecting high-strength, thick-walled glass materials, their ability to resist the impact and compression of internal high-pressure fluids is enhanced, ensuring that the glass components will not crack or deform under high-pressure conditions. This maintains the integrity and sealing of the device, guaranteeing the normal operation of the observation function.

[0004] However, simply increasing the glass thickness has some limitations. On the one hand, as the glass thickness increases, the weight of the device increases significantly, which not only places an additional burden on the installation, support, and maintenance of the pipeline, but may also generate additional stress on connected pipelines due to the excessive weight of the device itself, affecting the stability and reliability of the entire pipeline system. At the same time, in actual production, the pressure of the fluid inside the pipeline is dynamic and not constant. Simply increasing the glass thickness will also reduce the versatility and applicability of the device. On the other hand, the processing difficulty and cost of thicker glass also increase accordingly, and thicker glass may affect the observation effect and reduce visual clarity, making it difficult for operators to accurately observe subtle changes in the fluid inside the pipeline, which needs to be improved. Summary of the Invention

[0005] In order to solve all or some of the above problems, the present invention aims to provide a visual pipeline connection device that can realize clear visual monitoring of the inside of high-pressure transmission pipelines, improve stability and reliability, and reduce weight and cost.

[0006] This invention provides a visual pipe connection device, comprising: Support pipe, used for connection with delivery pipeline; The observation tube is made of transparent glass and is coaxially arranged inside the support tube; A camera assembly, at least one, is disposed on the support tube, the camera assembly being used to photograph the fluid inside the delivery pipe through the observation tube; An illumination component, at least one, is disposed on the support tube, the illumination component being used to provide an illumination source for the camera component.

[0007] Optionally, the visualized pipe connection device further includes: A balance ring cavity is disposed between the support tube and the observation tube, and the balance ring cavity is filled with a transparent balance fluid; At least one balancing component is disposed on the support tube; The balancing component connects the interior of the balancing ring cavity and the support tube, and is used to balance the pressure difference between the inside and outside of the observation tube.

[0008] Optionally, the balancing component includes: A balance hole is provided on the support tube and connects the balance ring cavity and the interior of the support tube; At least one balance piston is slidably connected within the balance hole.

[0009] Optionally, the support tube is provided with a first mounting hole and a second mounting hole, the camera assembly is sealed and connected in the first mounting hole, the lighting assembly is sealed and connected in the second mounting hole, the lighting assembly is perpendicular to the axis of the support tube, and the camera assembly is tilted toward the lighting assembly.

[0010] Optionally, the camera component includes: The first mounting base is threaded into the first mounting hole; A first receiving groove is disposed on the first mounting base; The first light-transmitting hole is located at the bottom of the first mounting base and communicates with the first receiving groove; A camera is disposed in the first receiving slot and aligned with the first light-transmitting hole; A first sealing cap is disposed on the top of the first mounting base and seals the opening of the first receiving groove; The camera's wires pass through the first sealing cover and are sealed to the first sealing cover.

[0011] Optionally, the camera assembly further includes: A first glass lens is disposed within the first receiving groove; The first sealing seat is disposed in the first receiving groove and located above the first glass lens; The camera passes through the first sealing seat and is sealed to the first sealing seat, and the first sealing cover presses the first sealing seat and the first glass lens into the first receiving groove.

[0012] Optionally, the lighting assembly includes: The second mounting base is threaded into the second mounting hole; The second receiving groove is disposed on the second mounting base; The second light-transmitting hole is located at the bottom of the second mounting base and communicates with the second receiving groove; A lighting lamp is disposed in the second receiving groove and aligned with the second light-transmitting hole; The second sealing cap is disposed on the top of the second mounting base and seals the opening of the second receiving groove; The lighting lamp's wire passes through the second sealing cover and is sealed to the second sealing cover.

[0013] Optionally, the lighting assembly further includes: The second glass lens is disposed within the second receiving groove; The second sealing seat is disposed in the second receiving groove and located above the second glass lens; The lighting lamp passes through the second sealing seat and is sealed to the second sealing seat, and the second sealing cover presses the second sealing seat and the second glass lens into the second receiving groove.

[0014] Optionally, both ends of the observation tube are sealed to the support tube by at least one sealing ring.

[0015] Optionally, flanges are provided at both ends of the support tube.

[0016] As can be seen from the above technical solution, the visual pipe connection device provided by the present invention has the following advantages: This visualized pipeline connection device enables clear visual monitoring of the interior of high-pressure transmission pipelines and automatically balances the pressure difference between the inside and outside of the observation pipe. This ensures that the observation pipe maintains pressure balance under different operating conditions, avoiding the risk of rupture due to pressure imbalance and effectively improving stability and reliability. Simultaneously, this visualized pipeline connection device effectively reduces reliance on glass thickness, lightens the device weight, and lowers costs.

[0017] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of the visualized pipe connection device in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the visualized pipe connection device in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the camera component in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the lighting component in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Support tube; 2. Observation tube; 3. Camera assembly; 31. First mounting base; 32. First receiving groove; 33. First light-transmitting hole; 34. First glass lens; 35. First sealing seat; 36. Camera; 37. First sealing cover; 4. Illumination assembly; 41. Second mounting base; 42. Second receiving groove; 43. Second light-transmitting hole; 44. Second glass lens; 45. Second sealing seat; 46. Illumination lamp; 47. Second sealing cover; 5. Balance ring cavity; 6. Balance assembly; 61. Balance hole; 62. Balance piston; 7. First mounting hole; 8. Second mounting hole; 10. Flange. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be arbitrarily combined with each other.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The illustration shows an embodiment of the present invention, which discloses a visualization pipe connection device, including a support pipe 1. An observation pipe 2 is coaxially fixedly connected inside the support pipe 1, and the observation pipe 2 is made of transparent glass. At least one camera component 3 and at least one lighting component 4 are provided on the support pipe 1. The camera component 3 is used to photograph the fluid inside the conveying pipe through the observation pipe 2, and the lighting component 4 is used to provide a light source for the camera component 3.

[0023] The number and position of the camera component 3 and the lighting component 4 can be set as follows: (1) One camera component 3 and one lighting component 4 are provided, and the lighting component 4 is located to the side of the camera component 3; (2) One camera component 3 is provided, and two or more lighting components 4 are provided, and the lighting components 4 are arranged sequentially along the axial direction of the support tube 1; (3) Multiple camera components 3 and multiple lighting components 4 are provided respectively. Multiple camera components 3 and multiple lighting components 4 are provided one-to-one and arranged along the circumference of the support tube 1.

[0024] In this embodiment, only the state of one camera component 3 and one lighting component 4 is shown.

[0025] In one embodiment, such as Figure 1 , Figure 2 As shown, the visualization pipeline connection device also includes a balancing annular cavity 5 disposed between the support pipe 1 and the observation pipe 2, and the balancing annular cavity 5 is filled with a transparent balancing liquid. At least one balancing component 6 is disposed on the support pipe 1, the balancing component 6 connecting the balancing annular cavity 5 and the interior of the support pipe 1, and the balancing component 6 is used to balance the pressure difference between the inside and outside of the observation pipe 2.

[0026] In this embodiment, an annular groove is provided on the inner wall of the support tube 1 along its circumference to form a balancing annular cavity 5 between the support tube 1 and the observation tube 2. Furthermore, this embodiment only shows the state of one balancing component 6; the actual number of balancing components 6 can be selected according to actual needs.

[0027] In one embodiment, such as Figure 1 , Figure 2 As shown, the balancing assembly 6 includes a balancing hole 61 and at least one balancing piston 62. The balancing hole 61 is disposed on the support tube 1 and connects the balancing ring cavity 5 and the interior of the support tube 1. The balancing piston 62 is slidably connected within the balancing hole 61. This embodiment only shows the state of one balancing piston 62. In other embodiments, the number of balancing pistons 62 can be set according to the actual situation.

[0028] The balancing fluid in the balancing ring cavity 5 can apply a certain external pressure to the observation tube 2 to balance the internal pressure of the observation tube 2, preventing the observation tube 2 from rupturing due to pressure imbalance between the inside and outside of the tube when transporting liquid. Meanwhile, in actual industrial production, the pressure of the liquid in the pipeline will fluctuate. The external pressure applied by the balancing fluid to the observation tube 2 is not constant, but is automatically adjusted by the balancing piston 62. The adjustment mechanism of the balancing piston 62 is as follows: Because the balance hole 61 connects the balance ring cavity 5 (containing the balance fluid) to the interior of the support pipe 1 (containing the transported liquid), and the balance piston 62 is disposed in the balance hole 61, the balance piston 62 can reciprocate within the balance hole 61, so that both sides of the balance piston 62 are in contact with the transported liquid and the balance fluid, respectively. When the pressure of the liquid in the pipeline increases due to various operating conditions, the increased pressure acts on one side of the balance piston 62. Since the liquid is almost incompressible, this pressure is accurately transmitted to the balance fluid on the other side through the balance piston 62.

[0029] Subsequently, the balancing fluid evenly transmits the corresponding pressure to the outer wall of observation tube 2, allowing the pressure on the outside of observation tube 2 to respond quickly to changes in pressure inside the pipe. Simultaneously, the liquid transported inside the pipe contacts the inner wall of observation tube 2, maintaining consistent pressure between the two, thus sustaining a dynamic balance of pressure inside and outside observation tube 2.

[0030] Furthermore, the balancing component 6 is also suitable for situations where the pressure of the transported liquid decreases. When the pressure of the transported liquid decreases, the pressure of the balancing fluid on the other side of the balancing piston 62 will decrease accordingly to adapt to the pressure change of the transported liquid, thereby maintaining the dynamic balance of pressure inside and outside the observation tube 2. This design enables the pipe connection device to adapt to pressure fluctuations of the transported liquid, ensuring the safety and reliability of the pipe connection device under various operating conditions.

[0031] In one embodiment, such as Figure 1 , Figure 2 As shown, the support tube 1 is provided with a first mounting hole 7 and a second mounting hole 8. The camera component 3 is sealed and connected in the first mounting hole 7, and the lighting component 4 is sealed and connected in the second mounting hole 8. There is an angle between the axis of the first mounting hole 7 and the axis of the support tube 1. The axis of the second mounting hole 8 is perpendicular to the axis of the support tube 1, that is, the lighting component 4 is perpendicular to the axis of the support tube 1, and the camera component 3 is tilted toward the lighting component 4.

[0032] This design can prevent the reflection generated by the lighting component 4 when illuminating the observation tube 2 from adversely affecting the imaging quality of the camera component 3. In actual application, if the lighting component 4 and the camera component 3 are not staggered, or if some of the light sources of the camera component 3 are used, the image captured by the camera component 3 will have severe reflection, which will interfere with the operator's observation of the inside of the pipe.

[0033] In addition, the tilted setting of the camera component 3 can bring a wider field of view. Compared with the traditional face-up installation method, the tilted camera component 3 can cover a wider observation area, thus providing more comprehensive information about the inside of the pipe.

[0034] In one embodiment, such as Figure 2 , Figure 3 As shown, the camera assembly 3 includes a first mounting base 31 threadedly connected to the first mounting hole 7, a first receiving groove 32 provided on the first mounting base 31, a first light-transmitting hole 33 provided at the bottom of the first mounting base 31, and the first light-transmitting hole 33 communicating with the first receiving groove 32.

[0035] In one embodiment, such as Figure 2 , Figure 3 As shown, a first glass lens 34, a first sealing seat 35 and a camera 36 are disposed in the first receiving groove 32. The first sealing seat 35 is located above the first glass lens 34. The camera 36 passes through the first sealing seat 35 and is sealed to the first sealing seat 35. At the same time, the camera 36 is aligned with the first light-transmitting hole 33.

[0036] In one embodiment, such as Figure 2 , Figure 3 As shown, a first sealing cover 37 is threadedly connected to the top of the first mounting base 31. The first sealing cover 37 seals the opening of the first receiving groove 32, and simultaneously presses the first sealing seat 35 and the first glass lens 34 tightly within the first receiving groove 32. The wire of the camera 36 passes through the first sealing cover 37 and is sealed to the first sealing cover 37 to ensure a sealing effect.

[0037] In this embodiment, the first mounting base 31 seals the first mounting hole 7 to prevent liquid leakage. The first glass lens 34 covers the first light-transmitting hole 33, providing pressure protection for the camera 36 without affecting its shooting effect. The first sealing base 35 provides stable support for the camera 36 and also provides pressure support for the first glass lens 34, ensuring its stable operation under high pressure, thereby guaranteeing the functional integrity and safety of the entire camera assembly 3.

[0038] Furthermore, the camera assembly 3 can reduce the pressure resistance requirements of the camera 36 itself, thereby enabling the pipe connection device to be compatible with more types of cameras 36, effectively reducing costs and improving the applicability of the pipe connection device.

[0039] Furthermore, even if the liquid transported in the pipeline is under high pressure, the first glass lens 34 can firmly protect the camera 36 from the direct impact of the high-pressure liquid. Therefore, this design not only reduces the pressure resistance requirements of the camera 36, ​​but also expands the range of camera 36 options, allowing both low-cost, standard cameras 36 and cameras 36 with special performance characteristics to be used in this pipeline connection device.

[0040] In one embodiment, such as Figure 2 , Figure 4 As shown, the lighting assembly 4 includes a second mounting base 41 threadedly connected to the second mounting hole 8, a second receiving groove 42 provided on the second mounting base 41, a second light-transmitting hole 43 provided at the bottom of the second mounting base 41, and the second light-transmitting hole 43 communicating with the second receiving groove 42.

[0041] In one embodiment, such as Figure 2 , Figure 4 As shown, a second glass lens 44, a second sealing seat 45, and an illumination lamp 46 are provided in the second receiving groove 42. The second sealing seat 45 is located above the second glass lens 44. The illumination lamp 46 passes through the second sealing seat 45 and is sealed to the second sealing seat 45. At the same time, the illumination lamp 46 is aligned with the second light-transmitting hole 43.

[0042] In one embodiment, such as Figure 2 , Figure 4 As shown, a second sealing cover 47 is threadedly connected to the top of the second mounting base 41. The second sealing cover 47 seals the opening of the second receiving groove 42. At the same time, the second sealing cover 47 presses the second sealing seat 45 and the second glass lens 44 tightly within the first receiving groove 32. The wire of the lighting lamp 46 passes through the second sealing cover 47 and is sealed to the second sealing cover 47 to ensure a sealing effect.

[0043] In this embodiment, the purpose of the lighting component 4 is to provide a high-pressure resistant lighting source for the camera component 3. In actual production, since the support pipe 1 is usually made of metal to ensure structural strength, this would prevent external light sources from entering the interior of the support pipe 1. Therefore, the lighting component 4 is provided to ensure that the camera component 3 can obtain sufficient light inside the support pipe 1, thereby enabling clear observation and recording of the flowing medium inside the pipe.

[0044] In this embodiment, the second mounting base 41 seals the second mounting hole 8 to prevent liquid leakage. The second glass lens 44 covers the second light-transmitting hole 43, providing pressure protection for the lighting lamp 46 without affecting its illumination effect. Since the liquid transported in the pipeline is often under high pressure, if the lighting lamp 46 is not effectively protected, the high-pressure liquid may damage it. Once the lighting lamp 46 is damaged, not only will the lighting function fail, but it may also cause pipeline leakage, thereby endangering production safety, reducing production efficiency, and seriously affecting the reliability of the pipeline connection device.

[0045] Meanwhile, the second sealing seat 45 can provide stable support for the lighting lamp 46, and the second sealing seat 45 also provides pressure support for the second glass lens 44, ensuring that the second glass lens 44 can work stably under high pressure, thereby ensuring the functional integrity and safety of the entire lighting.

[0046] In addition, this lighting reduces the pressure resistance requirements of the light source itself, thereby enabling the pipe connection device to be compatible with more types of light sources, effectively reducing costs and improving the applicability of the pipe connection device.

[0047] Furthermore, even when the liquid transported in the pipeline is under high pressure, the second glass lens 44 can reliably protect the lighting lamp 46 from the direct impact of the high-pressure liquid. Therefore, this design not only reduces the pressure resistance requirements of the lighting lamp 46, but also expands the range of light sources that can be used in this pipeline connection device, whether it is a low-cost general light source or a light source with special performance.

[0048] In one embodiment, such as Figure 1 , Figure 2As shown, both ends of the observation tube 2 are sealed to the support tube 1 by at least one sealing ring to ensure a good seal between the observation tube 2 and the support tube 1. Simultaneously, sealing O-rings are also used at the following locations: between the first mounting base 31 and the first mounting hole 7; between the second mounting base 41 and the second mounting hole 8; between the first mounting base 31 and the first glass lens 34; and between the second mounting base 41 and the second glass lens 44. This ensures the overall sealing effect of the pipe connection device, prevents liquid leakage from various connection points, and guarantees reliable operation of the pipe connection device under high pressure.

[0049] In one embodiment, such as Figure 1 , Figure 2 As shown, flanges 10 are provided at both ends of the support pipe 1, and the flanges 10 can be connected to external pipes. This not only improves the installation convenience of the pipe connection device, but also enhances the sealing and stability of the connection, ensuring the pressure stability of the entire pipeline system and the safety of media transportation.

[0050] As can be seen from the above process, this pipeline connection device adopts a design combining an observation tube 2 with a lighting component 4 and a camera component 3, achieving clear visual monitoring of the interior of the high-pressure transmission pipeline. Compared with existing technologies, this design not only provides a clearer observation effect, but also records the internal conditions of the pipeline through the camera component 3, facilitating subsequent analysis and processing.

[0051] Meanwhile, this pipe connection device achieves automatic pressure balance inside and outside the observation tube 2. This design is fundamentally different from the existing technology that relies solely on glass thickness to improve pressure resistance. This pipe connection device can automatically adjust the pressure on the outer wall of the observation tube 2 according to changes in the fluid pressure inside the pipe, ensuring that the observation tube 2 maintains pressure balance under different operating conditions. Therefore, this pipe connection device avoids the risk of rupture due to pressure imbalance, effectively solves the problem of poor versatility of existing technologies when facing dynamic pressure changes, expands the applicability of the device, improves the stability and reliability of the device under dynamic pressure environments, and reduces dependence on glass thickness, thereby reducing the weight of the device and lowering costs.

[0052] Furthermore, both the lighting component 4 and the camera component 3 employ a high-pressure resistant structural design, which not only improves the pressure resistance of the components but also enhances the overall stability of the device. Simultaneously, the tilted and staggered arrangement of the lighting component 4 and the camera component 3 avoids the impact of light source reflection on the imaging quality of the camera component 3, expands the field of view, and further improves the observation effect.

[0053] It should be noted that, unless otherwise stated, the technical or scientific terms used in this invention should have the ordinary meaning as understood by one of ordinary skill in the art.

[0054] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A visual pipe connection device, characterized in that, include: Support pipe (1), used for connection with the conveying pipeline; The observation tube (2) is made of transparent glass and is coaxially arranged inside the support tube (1); At least one camera assembly (3) is disposed on the support tube (1) and the camera assembly (3) is used to photograph the fluid in the delivery pipe through the observation tube (2); An illumination component (4), at least one, is disposed on the support tube (1), the illumination component (4) being used to provide an illumination source for the camera component (3).

2. The visual pipe connection device according to claim 1, characterized in that, The visualized pipeline connection device also includes: A balance ring cavity (5) is disposed between the support tube (1) and the observation tube (2), and the balance ring cavity (5) is filled with a transparent balance liquid; At least one balancing component (6) is disposed on the support tube (1); The balancing component (6) connects the interior of the balancing ring cavity (5) and the support tube (1), and the balancing component (6) is used to balance the pressure difference between the inside and outside of the observation tube (2).

3. The visual pipe connection device according to claim 2, characterized in that, The balancing component (6) includes: A balance hole (61) is provided on the support tube (1) and connects the balance ring cavity (5) and the interior of the support tube (1); At least one balance piston (62) is slidably connected within the balance hole (61).

4. The visual pipe connection device according to claim 1, characterized in that, The support tube (1) is provided with a first mounting hole (7) and a second mounting hole (8). The camera component (3) is sealed and connected in the first mounting hole (7). The lighting component (4) is sealed and connected in the second mounting hole (8). The lighting component (4) is perpendicular to the axis of the support tube (1). The camera component (3) is inclined toward the lighting component (4).

5. The visual pipe connection device according to claim 4, characterized in that, The camera component (3) includes: The first mounting base (31) is threaded into the first mounting hole (7); The first receiving groove (32) is disposed on the first mounting base (31); The first light-transmitting hole (33) is located at the bottom of the first mounting base (31) and communicates with the first receiving groove (32); A camera (36) is disposed in the first receiving groove (32) and aligned with the first light-transmitting hole (33); The first sealing cover (37) is disposed on the top of the first mounting base (31) and covers the opening of the first receiving groove (32); The wire of the camera (36) passes through the first sealing cover (37) and is sealed to the first sealing cover (37).

6. The visual pipe connection device according to claim 5, characterized in that, The camera component (3) also includes: The first glass lens (34) is disposed in the first receiving groove (32); The first sealing seat (35) is disposed in the first receiving groove (32) and located above the first glass lens (34); The camera (36) passes through the first sealing seat (35) and is sealed to the first sealing seat (35), and the first sealing cover (37) presses the first sealing seat (35) and the first glass lens (34) into the first receiving groove (32).

7. The visual pipe connection device according to claim 4, characterized in that, The lighting component (4) includes: The second mounting base (41) is threaded into the second mounting hole (8); The second receiving groove (42) is disposed on the second mounting base (41); The second light-transmitting hole (43) is disposed at the bottom of the second mounting base (41) and communicates with the second receiving groove (42); A lighting lamp (46) is disposed in the second receiving groove (42) and aligned with the second light-transmitting hole (43); The second sealing cover (47) is disposed on the top of the second mounting base (41) and covers the opening of the second receiving groove (42); The wire of the lighting lamp (46) passes through the second sealing cover (47) and is sealed to the second sealing cover (47).

8. The visual pipe connection device according to claim 7, characterized in that, The lighting component (4) also includes: The second glass lens (44) is disposed in the second receiving groove (42); The second sealing seat (45) is disposed in the second receiving groove (42) and located above the second glass lens (44); The lighting lamp (46) passes through the second sealing seat (45) and is sealed to the second sealing seat (45), and the second sealing cover (47) presses the second sealing seat (45) and the second glass lens (44) into the second receiving groove (42).

9. The visual pipe connection device according to claim 1, characterized in that, The two ends of the observation tube (2) are sealed to the support tube (1) by at least one sealing ring.

10. The visual pipe connection device according to any one of claims 1-9, characterized in that, Flanges (11) are provided at both ends of the support pipe (1).

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