Corrosion-resistant galvanized sheet air pipeline

Abstract

The utility model discloses a corrosion-resistant galvanized sheet air duct, and relates to the technical field of galvanized sheet air ducts, the corrosion-resistant galvanized sheet air duct comprises a ventilation pipe, the ventilation pipe comprises a plurality of groups of pipe main bodies connected end to end, a plurality of groups of grooves are formed in the inner walls of the pipe main bodies, the front end of each group of pipe main body is respectively sleeved at the tail end of another group of pipe main body, and a plurality of groups of grooves are formed in the inner walls of the pipe main bodies. A sealing ring is arranged at the joint of the two sets of pipeline bodies in a sleeving mode, and a lower fixing plate is arranged at the bottom end of the sealing ring in a sleeving mode. In the process of connecting the two groups of pipeline main bodies together, the upper fixing plate and the lower fixing plate are used for tightly clamping the sealing ring on the outer walls of the pipeline main bodies, so that the sealing ring seals the joint of the two groups of pipeline main bodies, and the interior of the ventilation pipe is in a relatively sealed state; and when airflow passes through the ventilation pipe, the temperature difference between the interior and the exterior of the ventilation pipe is reduced, condensate water is prevented from flowing out of the surface of the pipeline body, and the risk that the pipeline body is oxidized and corroded is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized sheet air ducts, in particular to a corrosion-resistant galvanized sheet air duct. Background Art

[0002] The square air duct is formed by bending the steel pipe. Multiple sections of air duct are assembled into a longer air duct by welding or riveting. The longer air duct is then connected by square flange bolts and the air duct is lifted and fixed by a hanger to achieve the installation of the air duct. However, after the air duct has been used for a period of time, it needs to be dismantled and galvanized again. However, the existing air duct is not easy to dismantle and is not suitable for long-term use of the air duct.

[0003] An existing patent (publication number: CN221548068U) discloses a corrosion-resistant galvanized sheet air duct, which includes a connecting frame and a tube body arranged on the connecting frame, and the outer peripheral surface of the tube body is provided with two card grooves surrounding the tube body, and the card grooves are adjacent to the ends of the tube body; the connecting frame includes a U-shaped frame and a sealing plate arranged on the U-shaped frame, and the inner side surfaces of the U-shaped frame and the sealing plate are provided with two card strips that cooperate with the card grooves. By setting a horizontal U-shaped frame, that is, the opening of the U-shaped frame faces the side, the air duct can be moved horizontally into the U-shaped frame, which facilitates the installation and disassembly of the air duct and effectively improves the efficiency of installation and disassembly of the air duct.

[0004] However, the above technical solution still has certain defects. During the use of the above solution, when the air flow passes through the pipe, the temperature difference between the inside and outside of the ventilation pipe will cause water vapor in the air flow to condense on the outer wall of the ventilation pipe. These condensed water droplets will adhere to and adsorb particulate matter in the air flow. These substances plus moisture adhere to the inner wall of the pipe, causing serious oxidation corrosion on the inner wall of the pipe. For this reason, a corrosion-resistant galvanized sheet air duct is proposed. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a corrosion-resistant galvanized sheet air duct to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a corrosion-resistant galvanized sheet air duct, comprising a ventilation pipe, wherein the ventilation pipe comprises multiple groups of pipe bodies connected end to end, and the inner walls of the pipe bodies are provided with multiple groups of grooves, and the front ends of each group of the pipe bodies are respectively sleeved on the ends of the other group of pipe bodies, and the connection between the two groups of the pipe bodies is sleeved with a sealing ring, and the bottom end of the sealing ring is sleeved with a lower fixed plate, and the two ends of the lower fixed plate are respectively fixedly connected to multiple groups of sliding rods, and the top end of the sealing ring is sleeved with an upper fixed plate, and the upper fixed plate is slidably sleeved on the outer wall of the sliding rod, and a group of fixing screws are rotatably connected on both sides of the upper fixed plate, and the ends of the fixing screws are threadedly connected to the side walls of the lower fixed plate.

[0007] As an optimal technical solution for a corrosion-resistant galvanized sheet air duct of the utility model, the top of each group of the upper fixed plates is fixedly connected with two groups of mounting mechanisms, and each group of the mounting mechanisms includes a group of outer shells, the inner wall of the outer shell is rotatably connected with a rotating arm, and the bottom end of the rotating arm is fixedly connected to the top of the upper fixed plate.

[0008] As an optimal technical solution for a corrosion-resistant galvanized sheet air duct of the utility model, the side wall of the rotating arm is fixedly connected with a gear disc, the outer wall of the gear disc is sleeved with a gear ring, the gear ring is engaged with the gear disc, and the gear ring is slidably connected to the inner wall of the shell.

[0009] As an optimal technical solution for the corrosion-resistant galvanized sheet air duct of the present invention, a set of return springs is fixedly connected to the side walls of each set of the gear rings, and the ends of the return springs are fixedly connected to the inner wall of the shell.

[0010] As an optimal technical solution for a corrosion-resistant galvanized sheet air duct of the utility model, a ball head is fixedly connected to the top of the outer shell, a sliding sleeve at the top of the ball head is provided with a ball seat, two sets of chucks are hinged on the outer wall of the ball seat, an adjustment ring is threadedly connected to the outer wall of the ball head, and the bottom end of the adjustment ring is fitted on the top of the two sets of chucks.

[0011] As an optimal technical solution for a corrosion-resistant galvanized sheet air duct of the utility model, the top of the outer shell is fixedly connected to a hanger, the top sliding sleeve of the hanger is provided with a fixed seat, the top of the hanger is threadedly connected to a threaded rod, and the two ends of the threaded rod are rotatably connected to the inner wall of the fixed seat.

[0012] As an optimal technical solution for a corrosion-resistant galvanized sheet air duct of the utility model, one end of the threaded rod extends to the outside of the fixed seat, and the end of the threaded rod located outside the fixed seat is fixedly connected to a handle, and a rubber sleeve is provided on the outer wall of the handle.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. The utility model uses an upper fixing plate and a lower fixing plate to tightly clamp the sealing ring to the outer wall of the pipe body when connecting the two sets of pipe bodies. The sealing ring seals the connection between the two sets of pipe bodies, making the interior of the ventilation pipe relatively sealed. In addition, by providing multiple sets of grooves, the temperature difference between the inside and outside of the ventilation pipe is reduced during the process of airflow passing through the ventilation pipe, preventing condensation on the surface of the pipe body and reducing the risk of oxidation corrosion of the pipe body.

[0015] 2. The utility model adjusts the position of the fixing seat and the inclination angle of the shell and the hanger so that during the installation process, the position and angle of the fixing seat match the installation hole on the ceiling, so that the ventilation pipe can be fixed and installed more quickly and conveniently during the process of fixing and installing the ventilation pipe, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection between two sets of pipe bodies of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of two groups of pipeline bodies in a separated state according to the present invention;

[0019] Figure 4 This is a schematic diagram of the main structure of the installation mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0021] Figure 6 This is a structural schematic diagram of the utility model in a state where the ball head and the ball seat are separated.

[0022] In the figure: 1. Ventilation pipe; 2. Mounting mechanism;

[0023] 101. Pipe body; 102. Groove; 103. Sealing ring; 104. Lower fixing plate; 105. Sliding rod; 106. Upper fixing plate; 107. Fixing screw;

[0024] 201. Housing; 202. Rotating arm; 203. Toothed disc; 204. Ring gear; 205. Return spring; 206. Ball head; 207. Ball seat; 208. Chuck; 209. Adjusting ring; 210. Hanging rod; 211. Fixed seat; 212. Threaded rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] The following describes an embodiment of the present invention based on its overall structure.

[0027] A corrosion-resistant galvanized sheet air duct, such as Figure 1 - Figure 6As shown, the ventilation pipe includes multiple groups of pipe bodies connected end to end, and the inner walls of the pipe bodies are provided with multiple groups of grooves. The front ends of each group of pipe bodies are respectively sleeved on the ends of the other group of pipe bodies. A sealing ring is sleeved at the connection between the two groups of pipe bodies, and a lower fixed plate is sleeved on the bottom end of the sealing ring. Multiple groups of sliding rods are fixedly connected at both ends of the lower fixed plate. The top end of the sealing ring is sleeved on the upper fixed plate, and the upper fixed plate is slidably sleeved on the outer wall of the sliding rod. A group of fixing screws are rotatably connected on both sides of the upper fixed plate, and the ends of the fixing screws are threadedly connected to the side walls of the lower fixed plate.

[0028] By respectively sleeveing ​​the front end of one group of pipe bodies on the end of the other group of pipe bodies, and then sleeve the sealing ring on the connection of the two groups of pipe bodies, and then sleeve the upper fixing plate and the lower fixing plate on the top and bottom ends of the sealing ring respectively, so that the upper fixing plate is sleeved on the outer wall of the sliding rod, and then by rotating the fixing screw, the upper fixing plate and the lower fixing plate are close to each other, so that the sealing ring fits tightly at the connection of the two groups of pipe bodies, and the multiple groups of grooves on the inner wall of the pipe body increase the surface area of ​​the inner wall of the pipe body, so that in the process of air flow passing through the inner wall of the pipe body, the pipe body can better conduct heat between the inside and outside of the pipe body, avoiding the excessive temperature difference between the inside and outside of the pipe body and the occurrence of condensed water, thereby improving the corrosion resistance of the pipe body.

[0029] Please refer to Figure 4 - Figure 6 The top of each set of upper fixed plates is fixedly connected to two sets of mounting mechanisms, each set of mounting mechanisms includes a set of shells, the inner wall of the shell is rotatably connected to a rotating arm, the bottom end of the rotating arm is fixedly connected to the top of the upper fixed plate, the side wall of the rotating arm is fixedly connected to a gear disk, the outer wall of the gear disk is provided with a gear ring, the gear ring is engaged with the gear disk, and the gear ring is slidably connected to the inner wall of the shell, the side wall of each set of gear rings is fixedly connected to a set of reset springs, the end of the reset spring is fixedly connected to the inner wall of the shell, and the top of the shell is fixedly connected to a ball head The top sliding sleeve of the ball head is provided with a ball seat, and the outer wall of the ball seat is hinged with two sets of chucks. The outer wall of the ball head is threadedly connected with an adjusting ring, and the bottom end of the adjusting ring fits on the top of the two sets of chucks. The top of the outer shell is fixedly connected with a suspension rod, and the top sliding sleeve of the suspension rod is provided with a fixed seat. The top of the suspension rod is threadedly connected with a threaded rod, and the two ends of the threaded rod are rotatably connected to the inner wall of the fixed seat. One end of the threaded rod extends to the outside of the fixed seat, and the end of the threaded rod located outside the fixed seat is fixedly connected to a turning handle, and the outer wall of the turning handle is provided with a rubber sleeve.

[0030] By pushing the ring gear, the ring gear is separated from the gear disc. At this time, the gear disc will not be separated by the ring gear. Then rotate the housing, the angle between the housing and the swing arm changes, and then release the ring gear, so that the reset spring rebounds and pushes the ring gear to reset. At this time, the ring gear and the gear disc are engaged again, so that the gear disc is not blocked by the ring gear. At this time, relative rotation cannot occur between the housing and the swing arm. By rotating the boom, the boom drives the ball seat to rotate. When the boom is rotated to the appropriate angle, rotate the adjusting ring so that the adjusting ring pushes the chuck to rotate, so that the chuck clamps the ball head, so that the ball seat and the ball head cannot rotate relative to each other, thereby fixing the angle of the boom. Finally, rotate the threaded rod to push the fixing seat to slide on the top of the boom so that the fixing seat is finally aligned with the mounting hole.

[0031] During use, by connecting the two sets of pipe bodies together, the upper fixing plate and the lower fixing plate are used to tightly clamp the sealing ring on the outer wall of the pipe body, so that the sealing ring seals the connection between the two sets of pipe bodies, so that the inside of the ventilation pipe is in a relatively sealed state, and by setting multiple sets of grooves, the temperature difference between the inside and outside of the ventilation pipe is reduced during the process of air flow passing through the inside of the ventilation pipe, thereby avoiding condensation water on the surface of the pipe body and reducing the risk of oxidation corrosion of the pipe body. The parts not involved in the device are the same as the existing technology or can be implemented using existing technology.

[0032] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A corrosion-resistant galvanized sheet air duct, comprising a ventilation pipe (1), characterized in that: The ventilation pipe (1) comprises a plurality of groups of pipe bodies (101) connected end to end, the inner wall of the pipe body (101) is provided with a plurality of groups of grooves (102), the front end of each group of the pipe bodies (101) is respectively sleeved on the end of the other group of the pipe bodies (101), a sealing ring (103) is sleeved at the connection between the two groups of the pipe bodies (101), the bottom end of the sealing ring (103) is sleeved with a lower fixed plate (104), the two ends of the lower fixed plate (104) are respectively fixedly connected with a plurality of groups of sliding rods (105), the top end of the sealing ring (103) is sleeved with an upper fixed plate (106), the upper fixed plate (106) is slidably sleeved on the outer wall of the sliding rod (105), and a group of fixing screws (107) are rotatably connected to the two sides of the upper fixed plate (106), and the ends of the fixing screws (107) are threadedly connected to the side walls of the lower fixed plate (104).

2. The corrosion-resistant galvanized sheet air duct according to claim 1, characterized in that: The top end of each set of upper fixed plates (106) is fixedly connected to two sets of mounting mechanisms (2), and each set of mounting mechanisms (2) comprises a set of outer shells (201). The inner wall of the outer shell (201) is rotatably connected to a rotating arm (202), and the bottom end of the rotating arm (202) is fixedly connected to the top end of the upper fixed plate (106).

3. The corrosion-resistant galvanized sheet air duct according to claim 2, characterized in that: The side wall of the rotating arm (202) is fixedly connected with a toothed disc (203), the outer wall of the toothed disc (203) is sleeved with a gear ring (204), the gear ring (204) is engaged with the toothed disc (203), and the gear ring (204) is slidably connected to the inner wall of the housing (201).

4. The corrosion-resistant galvanized sheet air duct according to claim 3, characterized in that: A set of return springs (205) are fixedly connected to the side walls of each set of gear rings (204), and the ends of the return springs (205) are fixedly connected to the inner wall of the housing (201).

5. The corrosion-resistant galvanized sheet air duct according to claim 2, characterized in that: The top of the housing (201) is fixedly connected to a ball head (206), the top sliding sleeve of the ball head (206) is provided with a ball seat (207), the outer wall of the ball seat (207) is hinged with two groups of chucks (208), the outer wall of the ball head (206) is threadedly connected to an adjustment ring (209), and the bottom end of the adjustment ring (209) is fitted on the top of the two groups of chucks (208).

6. The corrosion-resistant galvanized sheet air duct according to claim 2, characterized in that: The top end of the housing (201) is fixedly connected to a suspension rod (210), the top end of the suspension rod (210) is slidingly sleeved with a fixing seat (211), the top end of the suspension rod (210) is threadedly connected to a threaded rod (212), and both ends of the threaded rod (212) are rotatably connected to the inner wall of the fixing seat (211).

7. The corrosion-resistant galvanized sheet air duct according to claim 6, characterized in that: One end of the threaded rod (212) extends to the outside of the fixing seat (211), and one end of the threaded rod (212) located outside the fixing seat (211) is fixedly connected to a handle, and a rubber sleeve is provided on the outer wall of the handle.

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