View window mechanism used for round-top square-bottom pipe and capable of being detachably installed
By installing a detachable viewing window mechanism on the round-and-square tube, the problem of missing or additional viewing windows in the tube is solved, achieving rapid installation and cost reduction while ensuring sealing and corrosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, when a viewing window is missing on a round-to-square pipe or when a viewing window needs to be added temporarily, the pipe fittings need to be replaced or the entire order needs to be remade, resulting in extended construction time and increased costs.
A detachable viewing window mechanism is provided, including first and second connecting components and a viewing panel. Detachable installation is achieved by drilling a hole in a round tube and passing it through the first connecting part, using threaded connection and anti-loosening screws, and a sealed connection is achieved by combining an anti-corrosion gasket and an acrylic viewing panel.
The viewing window can be quickly installed on-site without replacing pipe fittings, reducing construction time and costs, improving installation efficiency, and ensuring sealing and corrosion resistance.
Smart Images

Figure CN223975709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation system construction technology, and in particular to a detachable viewing window mechanism for a round-and-square pipe. Background Technology
[0002] In process exhaust systems, when on-site personnel review the system inventory, issues such as missing viewing windows on the ductwork or the owner wanting to add viewing windows to a particular section of the ductwork may arise. However, since the fittings have already arrived on site, existing technology involves replacing the fitting or reordering and remanufacturing it with the added viewing window. This results in lost installation time, impacting the project schedule and increasing both the owner's operating costs and the supplier's costs. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.
[0004] To solve the above-mentioned technical problems, this utility model provides a detachable viewing window mechanism for a round-top, square-bottom tube, comprising:
[0005] The first connecting assembly is sealed to the square tube to be installed; the first connecting assembly includes a first flange portion and a first connecting portion connected to one end of the first flange portion.
[0006] The second connecting assembly is sealed to the square tube to be installed; the second connecting assembly includes a second flange portion and a second connecting portion connected to one end of the second flange portion.
[0007] The visible panel is sealed to the second connecting assembly;
[0008] The tube to be installed has a through hole; the first flange abuts against the inner wall of the tube; the first connecting part passes through the through hole and is detachably connected to the second connecting part; the second flange is detachably connected to the visible panel.
[0009] In one embodiment of the present invention, the first connecting part and the second connecting part are threadedly connected.
[0010] In one embodiment of the present invention, the application further includes an anti-loosening screw; the side wall of the second connecting part is provided with a threaded hole extending radially therein; after the second connecting part is connected to the first connecting part, the anti-loosening screw is threadedly connected in the threaded hole and abuts against the first connecting part.
[0011] In one embodiment of the present invention, a plurality of grooves are provided on the outer wall of the second connecting part, and the plurality of grooves are arranged at intervals along the circumference of the second connecting part.
[0012] In one embodiment of this utility model, the application further includes a first gasket sleeved on the first connecting portion, the first gasket being installed between the inner wall of the round-and-square tube to be installed and the end face of the first flange portion.
[0013] In one embodiment of this utility model, the first gasket is a corrosion-resistant gasket.
[0014] In one embodiment of the present invention, the second flange is detachably connected to the visual panel by a plurality of bolts.
[0015] In one embodiment of this utility model, the visual panel is made of acrylic.
[0016] In one embodiment of this utility model, the application further includes a second gasket disposed between the second connecting portion and the round-and-square tube to be installed.
[0017] In one embodiment of the present invention, the application further includes a third gasket installed between the second flange and the visible panel.
[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:
[0019] The detachable viewing window mechanism for a round-and-square tube as described in this utility model involves drilling a hole (through hole) in the tube to be installed. Then, a first connecting part is inserted through the through hole from the inside of the tube, with a first flange abutting against the inner wall of the tube. A second connecting part is then connected to the first connecting part from the outside of the tube. Finally, the viewing panel is installed on the end face of the second connecting part. This invention allows for on-site installation without replacing fittings or reordering, thus not affecting the construction period and reducing costs for both the owner and the supplier. Attached Figure Description
[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0021] Figure 1 This is a schematic diagram of a detachable viewing window mechanism for a round-top, square-bottom tube according to a preferred embodiment of the present invention.
[0022] Figure 2 yes Figure 1 Exploded view of a detachable viewing window mechanism for a duct with a round top and square bottom;
[0023] Figure 3 yes Figure 1 A top view of the detachable mounting window mechanism for a duct with a top and bottom;
[0024] Figure 4 It is a 3AA section view;
[0025] Figure 5 yes Figure 1 A schematic diagram of the structure of the first connecting component in a detachable installation window mechanism for a round-and-square tube;
[0026] Figure 6 yes Figure 1 A schematic diagram of the structure of the second connecting component in a detachable installation window mechanism for a round-and-square tube;
[0027] Figure 7 yes Figure 1 A schematic diagram showing the connection of multiple components in a detachable viewing window mechanism for a round-and-square tube.
[0028] Explanation of reference numerals in the accompanying drawings: 100, first connecting assembly; 110, first flange portion; 120, first connecting portion;
[0029] 200. Round pipe to be installed; 210. Through hole;
[0030] 300, Second connecting assembly; 310, Second flange; 320, Second connecting portion; 321, Threaded hole; 322, Groove;
[0031] 400. Visual panel;
[0032] 500. Anti-loosening screws;
[0033] 600, First gasket;
[0034] 700, Second gasket;
[0035] 800, Third gasket. Detailed Implementation
[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0037] Reference Figures 1-7 As shown, this embodiment of the present invention provides a detachable viewing window mechanism for a round-top, square-bottom tube, comprising:
[0038] The first connecting assembly 100 is sealed to the top-to-bottom pipe 200 to be installed; the first connecting assembly 100 includes a first flange portion 110 and a first connecting portion 120 connected to one end of the first flange portion 110; the outer diameter of the first connecting portion 120 is smaller than the outer diameter of the first flange portion 110.
[0039] The second connecting assembly 300 is sealed to the square tube 200 to be installed; the second connecting assembly 300 includes a second flange portion 310 and a second connecting portion 320 connected to one end of the second flange portion 310; the outer diameter of the second flange portion 310 is larger than the outer diameter of the second connecting portion 320.
[0040] The visible panel 400 is sealed to the second connecting assembly 300;
[0041] The tube 200 to be installed has a through hole 210; the first flange 110 abuts against the inner wall of the tube 200; the first connecting part 120 passes through the through hole 210 and is detachably connected to the second connecting part 320; the second flange 310 is detachably connected to the viewing panel 400.
[0042] Specifically, this application involves drilling a hole (through hole 210) in the square tube 200 to be installed on-site. Then, the first connecting part 120 is passed through the through hole 210 from the inside of the square tube 200, with the first flange 110 abutting against the inner wall of the square tube 200. Next, the second connecting part 320 is connected to the first connecting part 120 from the outside of the square tube 200. Finally, the viewing panel 400 is installed on the end face of the second connecting part 320. This application allows for on-site installation without replacing fittings or reordering, reducing material waste, not affecting the construction period, and lowering both the owner's and supplier's costs.
[0043] Furthermore, the first connecting part 120 and the second connecting part 320 are threaded together. In some possible embodiments, the first connecting part 120 is provided with an external thread, and the second connecting part 320 is provided with an internal threaded hole 321. The external thread and the internal threaded hole 321 cooperate to realize the quick installation and disassembly of the first connecting part 120 and the second connecting part 320.
[0044] Furthermore, this application also includes a locking screw 500; the side wall of the second connecting portion 320 is provided with a threaded hole 321 extending radially therein; after the second connecting portion 320 is connected to the first connecting portion 120, the locking screw 500 is threaded into the threaded hole 321 and abuts against the first connecting portion 120. Specifically, this embodiment provides a locking screw 500, which further secures the second connecting portion 320 and the first connecting portion 120, thereby preventing the second connecting portion 320 from loosening after a period of use.
[0045] Furthermore, the outer wall of the second connecting portion 320 is provided with a plurality of grooves 322, which are spaced apart circumferentially along the second connecting portion 320. Specifically, the grooves 322 in this embodiment are designed to facilitate cooperation with installation tools, thereby allowing the second connecting portion 320 to be tightened with the first connecting portion 120 using the tools.
[0046] Furthermore, this application also includes a first gasket 600 sleeved on the first connecting portion 120, the first gasket 600 being installed between the inner wall of the square tube 200 to be installed and the end face of the first flange portion 110. Specifically, in this embodiment, the first connecting assembly 100 is sealed to the square tube 200 to be installed via the first gasket 600. During installation, it is only necessary to sleeve the first gasket 600 on the first connecting portion 120 and then align the first connecting portion 120 with the second connecting portion 320.
[0047] Furthermore, the first gasket 600 is a corrosion-resistant gasket. Specifically, since the concentric circle pipe is connected to a corrosive gas system, the inside of the concentric circle pipe contains corrosive gas, and the inner wall of the concentric circle pipe has a layer of corrosion-resistant Teflon. The first gasket 600 of this application is installed inside the concentric circle pipe 200 to be installed, so the first gasket 600 is a corrosion-resistant gasket to improve corrosion resistance and prevent the first gasket 600 from being corroded by the corrosive gas and leaking gas, which would pose a danger.
[0048] Furthermore, the viewing panel 400 is made of acrylic. Specifically, the viewing panel 400 made of acrylic in this embodiment offers excellent visual effects and is low in cost.
[0049] Furthermore, this application also includes a second gasket 700 disposed between the second connecting portion 320 and the square tube 200 to be installed. Specifically, in this embodiment, it is sandwiched between the outer wall of the square tube 200 to be installed and the end face of the second connecting portion 320, thereby achieving a sealing effect.
[0050] Furthermore, the second flange portion 310 and the viewing panel 400 are detachably connected by multiple bolts. This application also includes a third gasket 800 installed between the second flange portion 310 and the viewing panel 400. Specifically, the second flange portion 310 has multiple first connecting holes along its circumference; the third gasket 800 has multiple second connecting holes along its circumference, with the first connecting holes and second connecting holes corresponding one-to-one, and the first connecting holes and second connecting holes are fixedly connected by bolts. This application provides convenient and quick connection and fixation.
[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A detachably mounted viewing window mechanism for a gnomonic tube, characterized by: The utility model relates to a kind of installation structure of circular tube, including: First connecting component, with the sealed connection of the installation to be installed round place pipe;The first connecting component includes first flange portion and the first connecting portion connected in the first flange portion one end; Second connecting component, with the sealed connection of the installation to be installed round place pipe;The second connecting component includes second flange portion and the second connecting portion connected in the second flange portion one end; Visual board, with the sealed connection of the second connecting component; Wherein, the through hole is set on the installation to be installed round place pipe;The first flange portion is located in the inner wall of the installation to be installed round place pipe, and the first connecting portion passes through the through hole and is detachably connected with the second connecting portion;The second flange portion is detachably connected with the visual board.
2. A detachable mounting window mechanism for a gnomonic tube according to claim 1, characterized in that: The first connecting portion is screw-connected with the second connecting portion.
3. A detachably mounted viewing port mechanism for a gnomonic tube as claimed in claim 2, characterized in that: It further includes check screw;The side wall of the second connecting portion is equipped with the screw hole extending along its radial direction;After the second connecting portion is connected with the first connecting portion, the check screw is screw-connected in the screw hole and is located on the first connecting portion.
4. The detachable mounting window mechanism for the globe-to-flat tube according to claim 2, characterized in that: Multiple grooves are equipped on the outer wall of the second connecting portion, and the multiple grooves are spaced along the circumference of the second connecting portion.
5. The detachable mounting window mechanism for the globe-to-flat tube according to claim 1, characterized in that: It further includes first gasket, which is sleeved on the first connecting portion, and the first gasket is installed between the inner wall of the installation to be installed round place pipe and the end surface of the first flange portion.
6. A detachably mounted viewing port mechanism for a gnomonic tube as claimed in claim 5, characterized in that: The first gasket is made of corrosion-resistant gasket.
7. The detachable mounting window mechanism for the globe-to-flat tube according to claim 1, characterized in that: The second flange portion is detachably connected with the visual board by multiple bolts.
8. The detachable mounting window mechanism for the globe-to-flat tube according to claim 1, characterized in that: The visual board is made of acrylic.
9. The detachable mounting window mechanism for a gnomon tube according to claim 1, characterized in that: It further includes second gasket, which is arranged between the second connecting portion and the installation to be installed round place pipe.
10. The detachable mounting window mechanism for a gnomon tube according to claim 1, wherein: It further includes third gasket, which is installed between the second flange portion and the visual board.