A leakage-proof structure of a heating and ventilation duct

Abstract

The utility model discloses a kind of anti-seepage structures of heating and ventilation pipeline, belong to pipeline anti-seepage technical field, the both ends of connecting pipe are sleeved with condensate pipe, positioning assembly includes first locating ring and second locating ring, first locating ring and second locating ring are correspondingly set on the outer wall of condensate pipe, the both ends of two groups of protective cover are sleeved in the outside of first locating ring and second locating ring, and protective cover is wrapped in the outside of positioning assembly. The utility model is cooperated by positioning assembly and protective cover, so that protective cover carries out circumferential wrapping protection to the butt joint of condensate pipeline and connecting pipe, simultaneously by the setting of double-layer structure, improve the compression resistance of its connecting place, avoid its pipeline connecting place loose, to ensure the sealing of butt joint between condensate pipeline and connecting pipe, play good anti-seepage function.

Description

Technical Field

[0001] This utility model relates to the field of pipeline anti-leakage technology, specifically an anti-leakage structure for HVAC pipelines. Background Technology

[0002] Condensation prevention is a critical issue in building HVAC systems. Condensation is the condensation of water vapor produced during the cooling process in HVAC systems. If condensation leaks or accumulates in inappropriate locations, it can lead to building damage, equipment malfunctions, and indoor air quality problems.

[0003] Leaks are more likely to occur, especially at the connections between pipes (such as main pipes and branch pipes). The existing condensate pipes are connected only by a simple plug-in joint, which is not only unstable, making the connections between the pipes prone to loosening, but also lacks sealing performance, leading to frequent leaks in the condensate pipes.

[0004] Therefore, this utility model provides a leak-proof structure for HVAC pipes to solve the above problems. Utility Model Content

[0005] This utility model provides a leak-proof structure for HVAC pipes, aiming to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof structure for HVAC pipes, including a connecting pipe, both ends of which are fitted with condensate pipes; A positioning component, comprising a first positioning ring and a second positioning ring, wherein the first positioning ring and the second positioning ring are respectively disposed on the outer wall of the condensate pipe; The protective covers are fitted over both ends of the first and second positioning rings, and the protective covers are wrapped around the outside of the positioning components.

[0007] As a further optimization, both ends of the connecting pipe are stepped, and a sealing gasket is fitted on the outer wall of the stepped pipe. The sealing gasket is used for sealing and squeezing between the connecting pipe and the condensate pipe. The outer diameter of the connecting pipe is equal to the outer diameter of the condensate pipe.

[0008] As a further optimization, the positioning component includes two sets of metal rods. Two first positioning rings and two second positioning rings are provided for each set of metal rods. Two first positioning rings or two second positioning rings are respectively abutted at both ends of each set of metal rods. Both ends of the metal rods are stepped, and the first positioning rings and the second positioning rings are provided with insertion holes at the stepped parts of the metal rods.

[0009] As a further optimization, countersunk holes are passed through the ends of the first and second positioning rings that are close to each other, and fastening bolts are passed through the inside of the countersunk holes. Welding grooves are opened on both sides of the first and second positioning rings, and the welding grooves are used for welding and fixing the outer wall of the condensate pipe.

[0010] As a further optimization, a plug-in plate is provided on the side of the first positioning ring near the second positioning ring, and a plug-in groove is provided on the side of the second positioning ring near the first positioning ring, and the plug-in plate is damped and plugged into the inside of the plug-in groove.

[0011] As a further optimization, the length of the positioning component is greater than the length of the connecting pipe, the length of the protective cover is greater than the length of the positioning component, and the first positioning ring and the second positioning ring are evenly provided with first threaded holes around their circumferences.

[0012] As a further optimization, both ends of the protective cover are L-shaped structures facing inward, and the L-shaped structures are engaged with the outside of the first positioning ring or the second positioning ring. The L-shaped structure of the protective cover has a second positioning hole at the first threaded hole. The protective cover is interference-fitted to the outside of the first positioning ring or the second positioning ring, and the minimum inner diameter of the protective cover is equal to the outer diameter of the condensate pipe.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: 1. This utility model, through the cooperation of positioning components and protective cover, enables the protective cover to circumferentially wrap and protect the joint between the condensate pipe and the connecting pipe. At the same time, the double-layer structure improves the pressure resistance and sealing performance of the joint, preventing the pipe joint from loosening during use (such as long-term pressure in buried structures), thereby ensuring the sealing between the condensate pipe and the connecting pipe and playing a good anti-leakage function. 2. In a specific embodiment, the first and second positioning rings are fixed to the condensate pipe by welding, which ensures the stability of the first and second positioning rings and the condensate pipe and avoids axial displacement, thereby ensuring the stability of the protective cover installation. At the same time, the first and second positioning rings are auxiliaryly limited by the abutment of a metal rod, which ensures the accuracy of the welding of the first and second positioning rings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the axial cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the distribution structure of the positioning components of this utility model; Figure 4This is an exploded view of the positioning component of this utility model.

[0015] In the diagram: 1. Connecting pipe; 11. Sealing gasket; 2. Condensate pipe; 3. Positioning assembly; 31. Metal rod; 32. First positioning ring; 33. Second positioning ring; 34. Insertion plate; 35. Insertion groove; 36. Welding groove; 37. Countersunk hole; 4. Protective cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, this utility model provides a leak-proof structure for HVAC pipes, including a connecting pipe 1, with condensate pipes 2 fitted at both ends of the connecting pipe 1; a positioning component 3, which includes a first positioning ring 32 and a second positioning ring 33, which, if made of metal (such as galvanized steel pipe), are welded to the outer wall of the condensate pipe 2; and a protective cover 4, with both ends of the two sets of protective covers 4 fitted outside the first positioning ring 32 and the second positioning ring 33, and the protective covers 4 wrap around the outside of the positioning component 3. Through the protection of the protective covers 4, the connection between the connecting pipe 1 and the condensate pipe 2 is well protected against pressure, thereby preventing condensate leakage due to long-term pressure deformation at the connection, thus improving the leak-proof performance of the connection.

[0018] Furthermore, both ends of the connecting pipe 1 are stepped, and a sealing gasket 11 is fitted on the outer wall of the stepped shape. The sealing gasket 11 is used for sealing and squeezing between the connecting pipe 1 and the condensate pipe 2. The outer diameter of the connecting pipe 1 is equal to the outer diameter of the condensate pipe 2. By setting the sealing gasket 11, when the connecting pipe 1 and the condensate pipe 2 are connected, the sealing performance of the connecting pipe 1 and the condensate pipe 2 is improved by squeezing the sealing gasket 11.

[0019] Furthermore, the positioning component 3 includes two sets of metal rods 31. Two first positioning rings 32 and two second positioning rings 33 are provided for each set of metal rods 31. Two first positioning rings 32 or two second positioning rings 33 are respectively abutted at both ends of each set of metal rods 31. Both ends of the metal rods 31 are stepped, and the first positioning rings 32 and the second positioning rings 33 are provided with insertion holes at the stepped parts of the metal rods 31. By inserting and positioning the metal rods 31, the accuracy of the welding position of the first positioning rings 32 and the second positioning rings 33 on both sides is ensured, thereby avoiding the welding gap of the first positioning rings 32 being too large or too small, which would affect the installation of the protective cover 4.

[0020] Furthermore, countersunk holes 37 are passed through the ends of the first positioning ring 32 and the second positioning ring 33 that are close to each other, and fastening bolts are passed through the interior of the countersunk holes 37 for pressing and fixing the first positioning ring 32 and the second positioning ring 33, so that the first positioning ring 32 and the second positioning ring 33 are stably wrapped around the outer wall of the corresponding condensate pipe 2. Welding grooves 36 are provided on both sides of the first positioning ring 32 and the second positioning ring 33, and the welding grooves 36 are used for welding and fixing the outer wall of the condensate pipe 2. By setting the welding grooves 36, the welding and fixing between the first positioning ring 32 and the condensate pipe 2 and the second positioning ring 33 and the condensate pipe 2 can be facilitated, thereby hiding the welding products and improving the tightness of the protective cover 4.

[0021] Furthermore, a plug-in plate 34 is provided on the side of the first positioning ring 32 near the second positioning ring 33, and a plug-in groove is provided on the side of the second positioning ring 33 near the first positioning ring 32. The plug-in plate 34 is damped and plugged into the inside of the plug-in groove 35. The plug-in plate 34 and the plug-in groove 35 are plugged and fixed, which further improves the stability of the docking of the first positioning ring 32 and the second positioning ring 33. The length of the positioning component 3 is greater than the length of the connecting pipe 1, and the length of the protective cover 4 is greater than the length of the positioning component 3. The first positioning ring 32 and the second positioning ring 33 are evenly provided with first threaded holes around their circumference.

[0022] Furthermore, both ends of the protective cover 4 are L-shaped structures facing inward, and the L-shaped structures are correspondingly engaged with the outside of the first positioning ring 32 or the second positioning ring 33. The L-shaped structure of the protective cover 4 has a second positioning hole corresponding to the first threaded hole. The protective cover 4 is interference-fitted to the outside of the first positioning ring 32 or the second positioning ring 33, and the minimum inner diameter of the protective cover 4 is equal to the outer diameter of the condensate pipe 2. By passing the bolts through the second positioning holes and connecting them with the first threaded holes, the installation and positioning of the protective cover 4 can be achieved. At the same time, with the abutment of the first positioning ring 32 and the second positioning ring 33 on both sides, it plays a good role in fastening the condensate pipe 2, preventing the condensate pipe 2 from moving axially on both sides and causing the connection to loosen.

[0023] Working principle: First, the connecting pipe 1 and the condensate pipe 2 are connected. Then, the metal rod 31, the first positioning ring 32, and the second positioning ring 33 are connected, so that the first positioning ring 32 and the second positioning ring 33 on both sides are welded and fixed to the outer wall of the condensate pipe 2. Then, a protective cover 4 is wrapped around the outside of the first positioning ring 32 and the second positioning ring 33. After wrapping, the connection is sealed with bolts. Finally, the protective cover 4 is installed and fixed with the first positioning ring 32 and the second positioning ring 33 with bolts, so as to achieve stable installation of the protective cover 4, thereby improving the stability and sealing of the connection between the connecting pipe 1 and the condensate pipe 2.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A leak-proof structure for HVAC pipes, characterized in that: Includes a connecting pipe (1), both ends of which are fitted with condensate pipes (2); The positioning component (3) includes a first positioning ring (32) and a second positioning ring (33), which are respectively disposed on the outer wall of the condensate pipe (2); The protective cover (4) has both ends of the two sets of protective covers (4) fitted outside the first positioning ring (32) and the second positioning ring (33), and the protective cover (4) is wrapped around the outside of the positioning component (3).

2. The anti-leakage structure for HVAC pipes according to claim 1, characterized in that: Both ends of the connecting pipe (1) are stepped, and the outer wall of the stepped pipe is fitted with a sealing gasket (11). The sealing gasket (11) is used for sealing and squeezing between the connecting pipe (1) and the condensate pipe (2). The outer diameter of the connecting pipe (1) is equal to the outer diameter of the condensate pipe (2).

3. The anti-leakage structure for HVAC pipes according to claim 2, characterized in that: The positioning component (3) includes two sets of metal rods (31). The first positioning ring (32) and the second positioning ring (33) are provided for each set of metal rods (31). The two ends of each set of metal rods (31) respectively abut against two first positioning rings (32) or two second positioning rings (33). The two ends of the metal rods (31) are stepped, and the first positioning rings (32) and the second positioning rings (33) are provided with insertion holes at the stepped parts of the metal rods (31).

4. The anti-leakage structure for HVAC pipes according to claim 3, characterized in that: The first positioning ring (32) and the second positioning ring (33) are both connected by countersunk holes (37) at their closest ends, and fastening bolts are inserted inside the countersunk holes (37). Welding grooves (36) are provided on both sides of the first positioning ring (32) and the second positioning ring (33), and the welding grooves (36) are used for welding and fixing the outer wall of the condensate pipe (2).

5. The anti-leakage structure for HVAC pipes according to claim 1, characterized in that: The first positioning ring (32) is provided with a plug plate (34) on the side near the second positioning ring (33), and the second positioning ring (33) is provided with a plug groove (35) on the side near the first positioning ring (32), and the plug plate (34) is damped and plugged into the inside of the plug groove (35).

6. The anti-leakage structure for HVAC pipes according to claim 5, characterized in that: The length of the positioning component (3) is greater than the length of the connecting pipe (1), the length of the protective cover (4) is greater than the length of the positioning component (3), and the first positioning ring (32) and the second positioning ring (33) are evenly provided with first threaded holes around their circumferences.

7. The anti-leakage structure for HVAC pipes according to claim 6, characterized in that: Both ends of the protective cover (4) are L-shaped structures facing inward, and the L-shaped structures are correspondingly engaged with the outside of the first positioning ring (32) or the second positioning ring (33). The L-shaped structure of the protective cover (4) is provided with a second positioning hole at the first threaded hole. The protective cover (4) is interference-connected to the outside of the first positioning ring (32) or the second positioning ring (33), and the minimum inner diameter of the protective cover (4) is equal to the outer diameter of the condensate pipe (2).

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