Welded pipe fitting with visual window

Abstract

The utility model relates to pipeline connection and monitoring technical field, concretely relates to a welded pipe fitting with visual window, including welding assembly, welding assembly includes welded pipe body, the side surface of welded pipe body is opened to have the installation gap, the inner wall of square installation protection box is opened to have square placement groove, square hollow gasket is fixedly connected in the inner wall of square placement groove, square hollow gasket upper surface fixedly connected with square toughened glass, square installation protection box bottom outside surface fixed connection is in the inner wall of installation gap, through setting up three evenly distributed support rods, connecting short pole, rotating cylinder, two groups of connecting rods and square protection cover in square installation protection box left side, the rubber frame of square protection cover right side is collocated, so that square toughened glass obtains double physical protection, avoids external impact, mechanical friction or medium splashing to cause damage to glass, realizes the long -term stable use of window structure and the sustained clear observation of pipeline medium.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection and monitoring technology, and in particular to a welded pipe fitting with a viewing window. Background Technology

[0002] Welded pipe fittings with viewing windows consist of a main pipe body, an observation window, and a welding interface. The main pipe body is made of corrosion-resistant alloy material, with standard welding bevels at both ends, suitable for welding operations in piping systems. The window is fitted with high-strength, high-temperature resistant tempered glass, and the perimeter is sealed with a rubber ring and heat-fused to the pipe body. This allows for direct observation of the flow of the medium inside the pipe, the welding fusion state, and scaling, facilitating real-time monitoring and maintenance. Suitable for piping systems requiring visual monitoring, such as those in chemical and heating industries, the window should be oriented for easy observation during installation, and an airtightness test is required after welding.

[0003] In existing technologies, observation is achieved by opening a circular viewing port on the side wall of the pipe fitting and installing a glass sight glass. However, some welded pipe fittings have shortcomings, such as weak window protection, often using an unprotected structure, and the glass is easily damaged by external impacts or media impacts, leading to interruption of observation and the risk of media leakage.

[0004] Therefore, this utility model provides a welded pipe fitting with a viewing window to solve the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a welded pipe fitting with a viewing window, which solves the problems of weak window protection, the use of unprotected structures, and the glass being easily damaged by external impacts or media impacts, resulting in interruption of observation and the risk of media leakage.

[0006] To achieve the above objectives, this utility model provides a welded pipe fitting with a viewing window, including a welding assembly. The welding assembly includes a welded pipe body, with an installation notch on the side surface of the welded pipe body. An observation assembly is provided above the welded pipe body, and the observation assembly includes a square installation protective box. A square placement groove is provided on the inner wall of the square installation protective box, and a square hollow sealing gasket is fixedly connected to the inner wall of the square placement groove. A square tempered glass is fixedly connected to the upper surface of the square hollow sealing gasket, and the outer bottom surface of the square installation protective box is fixedly connected to the inner wall of the installation notch.

[0007] The square mounting protective box has three support rods fixedly connected to its left side surface. These support rods are evenly distributed at the center of the left side surface of the square mounting protective box, and the tops of the three support rods are fixedly connected to short connecting rods.

[0008] The connecting rod has a rotating cylinder rotatably connected to both ends, and a connecting rod is fixedly connected to the outer surface of the rotating cylinder. There are six connecting rods, and three adjacent connecting rods form a group, with the two groups of connecting rods corresponding to each other.

[0009] Two sets of connecting rods are fixedly connected to square protective covers at their top ends. A rubber frame is fixedly connected to the right side surface of the square protective cover. The right side surface of the rubber frame is movably connected to the upper surface of the square tempered glass. The side surface of the rubber frame is movably connected to the inner wall of the square placement groove.

[0010] The square protective cover has a fixedly connected insert plate on its side surface, and an insert frame is movably connected to the side surface of the insert plate. The left side surface of the insert frame is fixedly connected to the right side surface of the square mounting protective box.

[0011] Both the insert plate and the insert frame have threaded holes on their side surfaces, and the insert plate and the insert frame are connected by bolts.

[0012] The welded pipe body has welding rings fixedly connected to both ends, and sealing extension cylinders are fixedly connected to the outer surface of the welding rings. There are two sealing extension cylinders in corresponding positions.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting three evenly distributed support rods, connecting short rods, rotating cylinders, two sets of connecting rods and a square protective cover on the left side of the square protective box, and with the rubber frame on the right side of the square protective cover, the square tempered glass is given double physical protection, avoiding damage to the glass from external impacts, mechanical friction or media splashes, and realizing the long-term stable use of the window structure and the continuous clear observation of the medium in the pipeline.

[0014] 2. In this utility model, welding rings are fixedly connected to both ends of the welded pipe body, two corresponding sealing extension cylinders are fixedly connected to the outer surface of the welding rings, a square hollow sealing gasket is fixedly connected to the inner wall of the square placement groove, and an insert plate is fixedly connected to the side surface of the square protective cover and an insert frame is fixedly connected to the right side surface of the square mounting protective box. The pipe fittings are fixed by bolts passing through the threaded holes of both, so that the pipe fittings form a double seal, realizing safe sealing and reliable operation of the pipe fittings under complex working conditions such as high pressure, high temperature and corrosive media, and improving the safety and stability of industrial production processes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present utility model.

[0017] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram.

[0019] Figure 4 This is a bottom view of the structure of an embodiment of the present invention.

[0020] Figure 5 This is a partial structural front view schematic diagram of an embodiment of this utility model.

[0021] In the diagram: 1. Welding assembly; 101. Welded pipe body; 102. Welding ring; 103. Sealing extension cylinder; 104. Installation notch; 2. Observation assembly; 201. Square installation protective box; 202. Square placement groove; 203. Square hollow sealing gasket; 204. Square tempered glass; 205. Support rod; 206. Connecting short rod; 207. Rotating cylinder; 208. Connecting rod; 209. Square protective cover; 210. Rubber frame; 211. Insert plate; 212. Insert frame. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figures 1 to 5This utility model provides a technical solution: a welded pipe fitting with a viewing window, including a welding assembly 1, which includes a welded pipe body 101. An installation notch 104 is provided on the side surface of the welded pipe body 101. An observation assembly 2 is provided above the welded pipe body 101. The observation assembly 2 includes a square installation protective box 201. A square placement groove 202 is provided on the inner wall of the square installation protective box 201. A square hollow sealing gasket 203 is fixedly connected to the inner wall of the square placement groove 202. A square tempered glass 204 is fixedly connected to the upper surface of the square hollow sealing gasket 203. The bottom outer surface of the square installation protective box 201 is fixedly connected to the inner wall of the installation notch 104. Three support rods 205 are fixedly connected to the left side surface of the square installation protective box 201, evenly distributed at the center of the left side surface. Connecting short rods 206 are fixedly connected to the top of the three support rods 205. Both ends of the connecting short rod 206 are rotatably connected to rotating cylinders 207. Connecting rods 208 are fixedly connected to the outer surface of the rotating cylinders 207. There are six connecting rods 208, with three adjacent connecting rods 208 forming a group, and the two groups of connecting rods 208 are positioned correspondingly. A square protective cover 209 is fixedly connected to the top of each group of connecting rods 208. A rubber frame 210 is fixedly connected to the right side surface of the square protective cover 209. The right side surface of the rubber frame 210 is movably connected to the upper surface of the square tempered glass 204, and the side surface of the rubber frame 210 is movably connected to the inner wall of the square placement slot 202. An insert plate 211 is fixedly connected to the side surface of the square protective cover 209. An insert frame 212 is movably connected to the side surface of the insert plate 211. The left side surface of the insert frame 212 is fixedly connected to the right side surface of the square mounting protective box 201. Both the insert plate 211 and the insert frame 212 have threaded holes on their side surfaces, and the insert plate 211 and the insert frame 212 are connected by bolts. An installation notch 104 is opened on the side surface of the welding pipe body 101 of the welding assembly 1. The bottom outer surface of the square installation protective box 201 of the observation assembly 2 is fixedly connected to the inner wall of the installation notch 104, so as to achieve precise fixation of the observation assembly 2 above the welding pipe body 101. A square placement groove 202 is opened on the inner wall of the square installation protective box 201. A square hollow sealing gasket 203 is fixedly connected to the inner wall of the square placement groove 202. A square tempered glass 204 is fixedly connected to the upper surface of the square hollow sealing gasket 203. The square placement groove 202 provides an installation reference for the sealing and viewing window structure. The square hollow sealing gasket 203 fills the gap to achieve preliminary sealing. The square tempered glass 204 constructs a medium observation passage inside the pipe.Three evenly distributed support rods 205 are fixedly connected to the left side surface of the square mounting protective box 201. The top ends of the three support rods 205 are fixedly connected to connecting short rods 206, providing stable support for the connecting short rods 206. The two ends of the connecting short rods 206 are rotatably connected to rotating cylinders 207. Two sets of corresponding connecting rods 208 are fixedly connected to the outer surface of the rotating cylinders 207. The top ends of the two sets of connecting rods 208 are fixedly connected to square protective covers 209. The rotation of the rotating cylinders 207 around the connecting short rods 206 can cause the connecting rods 208 and the square protective covers 209 to flip open and close. The side surface of the square protective cover 209 is fixedly connected to a plug plate 211. The right side surface of the square mounting protective box 201 is fixedly connected to a plug frame 212. After the plug plate 211 is inserted into the plug frame 212, it is fixed by bolts through the threaded holes of both, thereby locking the protective cover and preventing accidental opening. A rubber frame 210 is fixedly connected to the right side surface of the square protective cover 209. When the square protective cover 209 is closed and locked, the right side surface of the rubber frame 210 is movably connected to the upper surface of the square tempered glass 204, and the side surface of the rubber frame 210 is movably connected to the inner wall of the square placement groove 202. The rubber frame 210 fills the gap between the square protective cover 209, the glass, and the placement groove by means of elastic deformation, and forms a double seal with the square hollow sealing gasket 203, which not only prevents the leakage of the medium in the pipeline, but also avoids external impurities from adhering to the glass and affecting observation.

[0024] like Figures 1 to 5 As shown, welding rings 102 are fixedly connected to both ends of the welded pipe body 101. Sealing extension cylinders 103 are fixedly connected to the outer surface of the welding rings 102. There are two sealing extension cylinders 103, and their positions correspond. The welding rings 102 provide a welding contact surface between the welded pipe body 101 and the external pipe. Welding through the welding rings 102 enhances the connection's strength and prevents deformation of the welded pipe body 101 during direct welding. Two corresponding sealing extension cylinders 103 are fixedly connected to the outer surface of the welding rings 102. During welding, the sealing extension cylinders 103 can nest within the external pipe, assisting in precise alignment between the welding rings 102 and the external pipe, reducing welding deviation, and simultaneously covering the weld gap. This, combined with the weld layer, improves the sealing of the weld and reduces the risk of leakage.

[0025] Working Principle: The first step is pre-assembly preparation, which requires pre-processing the components of welding assembly 1 and observation assembly 2. Check the dimensional accuracy of the mounting notch 104 on the side surface of the welding pipe body 101 to ensure it matches the bottom outer surface of the square mounting protective box 201. Clean the inner wall of the square placement groove 202, the surface of the square hollow sealing gasket 203, and the contact surface of the square tempered glass 204, removing oil, burrs, and other impurities to avoid affecting subsequent sealing. Simultaneously, check the surface flatness and connection hole accuracy of the support rod 205, connecting short rod 206, rotating cylinder 207, and other protective cover-related components to ensure normal rotation and fixing functions. Next, the core structure assembly is carried out. First, align the bottom outer surface of the square mounting protective box 201 with the inner wall of the mounting notch 104 of the welding pipe body 101, and fix it using argon arc welding. During the process, control the current and temperature to prevent high-temperature deformation of the components. After welding, polish the weld to ensure a smooth surface and avoid hindering subsequent installation. The second step involves applying high-temperature resistant sealant to the square placement groove 202, embedding the square hollow sealing gasket 203, and ensuring a seamless fit. Then, apply sealant evenly to the upper surface of the sealing gasket, cover it with square tempered glass 204, and press to bond it. Let it stand until the sealant cures, forming the first layer of sealing and the foundation for visibility of the window. The third step involves welding three evenly distributed support rods 205 to the center left side of the square mounting protective box 201, ensuring the axes are vertical and the spacing is equal. A horizontal connecting short rod 206 is welded to the top of the support rods 205, with flexibly rotatable rotating cylinders 207 fitted at both ends. Two sets of symmetrical connecting rods 208 are welded to the outside of the rotating cylinders 207, and a square protective cover 209 is welded to the top. A suitable rubber frame 210 is bonded to the right side of the protective cover. Finally, a plug plate 211 is welded to the side of the protective cover, and a plug frame 212 is welded to the right side of the protective box, aligning the threaded holes to complete the pre-assembly of the pipe fittings.

[0026] The subsequent installation phase involves pipe connection. First, the welding rings 102 at both ends of the welded pipe body 101 are aligned with the ports of the external pipe. The sealing extension cylinder 103 on the outside of the welding ring 102 is then nested within the external pipe. The sealing extension cylinder 103 guides the connection, ensuring coaxiality and preventing uneven weld gaps due to misalignment. Second, the welding rings 102 and the external pipe are welded using arc welding or argon arc welding. Welding is performed evenly along the circumference to ensure a full and defect-free weld. After welding, non-destructive testing is performed on the weld to confirm quality compliance. Simultaneously, the fit between the sealing extension cylinder 103 and the external pipe is checked to ensure it covers the welded area, forming an auxiliary seal. This completes the connection between the pipe fitting and the external pipe, establishing a complete media transmission path. In daily use, when it is necessary to observe the medium inside the pipeline, first loosen the bolts of the insert plate 211 and the insert frame 212 with a wrench. After pulling out the insert plate 211, rotate the square protective cover 209 around the connecting short rod 206 and observe the medium flow rate, liquid level, and other conditions through the square tempered glass 204. If necessary, use lighting for assistance. After observation, reverse the protective cover so that the rubber frame 210 fits against the glass and the placement groove. Insert the insert plate 211 and tighten the bolts. The elastic deformation of the rubber frame 210 fills the gap, forming a double seal with the square hollow sealing gasket 203 to prevent medium leakage and impurity adhesion. After long-term use, if scale forms on the glass, gently wipe it with a soft cloth dampened with special cleaning agent. If the square hollow sealing gasket 203 ages and deforms, remove the glass, replace the sealing gasket, reinstall it, and cure the sealant. After maintenance, restore the protective cover to its sealed state to ensure the continuous and stable operation of the pipe fitting, which combines media transmission, visual monitoring, and safety sealing functions.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A welded pipe fitting with a viewing window, comprising a welding assembly (1), characterized in that, The welding assembly (1) includes a welding pipe body (101), the side surface of which is provided with an installation notch (104), and an observation assembly (2) is provided above the welding pipe body (101). The observation assembly (2) includes a square installation protective box (201), the inner wall of which is provided with a square placement groove (202), the inner wall of which is fixedly connected with a square hollow sealing gasket (203), the upper surface of which is fixedly connected with a square tempered glass (204), and the bottom outer surface of the square installation protective box (201) is fixedly connected to the inner wall of the installation notch (104).

2. The welded pipe fitting with a viewing window according to claim 1, characterized in that, The square mounting protective box (201) has a support rod (205) fixedly connected to the left side surface. There are three support rods (205) evenly distributed at the center of the left side surface of the square mounting protective box (201). The top of the three support rods (205) is fixedly connected to a connecting short rod (206).

3. The welded pipe fitting with a viewing window according to claim 2, characterized in that, Both ends of the connecting short rod (206) are rotatably connected to a rotating cylinder (207). A connecting rod (208) is fixedly connected to the outer surface of the rotating cylinder (207). There are six connecting rods (208), and three adjacent connecting rods (208) form a group. The positions of the two groups of connecting rods (208) are corresponding.

4. The welded pipe fitting with a viewing window according to claim 3, characterized in that, Two sets of connecting rods (208) are fixedly connected to the top of a square protective cover (209). A rubber frame (210) is fixedly connected to the right side surface of the square protective cover (209). The right side surface of the rubber frame (210) is movably connected to the upper surface of the square tempered glass (204). The side surface of the rubber frame (210) is movably connected to the inner wall of the square placement groove (202).

5. The welded pipe fitting with a viewing window according to claim 4, characterized in that, The square protective cover (209) has a fixedly connected insert plate (211) on its side surface, and the insert plate (211) has a movablely connected insert frame (212) on its side surface. The left side surface of the insert frame (212) is fixedly connected to the right side surface of the square mounting protective box (201).

6. The welded pipe fitting with a viewing window according to claim 5, characterized in that, Both the insert plate (211) and the insert frame (212) have threaded holes on their side surfaces, and the insert plate (211) and the insert frame (212) are connected by bolts.

7. The welded pipe fitting with a viewing window according to claim 1, characterized in that, Welding rings (102) are fixedly connected to both ends of the welded pipe body (101). A sealing extension cylinder (103) is fixedly connected to the outer surface of the welding ring (102). There are two sealing extension cylinders (103) and their positions correspond to each other.

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