Spiral heat preservation air pipe of double-layer structure

Abstract

The utility model discloses a spiral heat preservation air pipe with a double-layer structure, which comprises a spiral air pipe, a heat preservation material is arranged on the outer ring of the spiral air pipe, a hoop is arranged at the central position of the outer ring of the heat preservation material, connecting flanges are arranged at the two ends of the spiral air pipe, and a locking platform is arranged on the inward side of each connecting flange. A threaded hole is formed in the center of the locking platform, a screw rod is vertically and rotatably mounted in the center of the threaded hole, a rotating wrench is arranged at the top of the screw rod, and a pressing block is arranged at the bottom of the screw rod; according to the spiral heat preservation air pipe of the double-layer structure, heat preservation materials are attached to the outer portion of the spiral air pipe and fixed through the hoops, the two ends of the spiral air pipe are fixed through the pressing blocks on the connecting flanges, the number of the hoops is increased according to the length of the spiral air pipe to stabilize the heat preservation materials, the heat preservation materials of the spiral air pipe can be detached and replaced at any time, and the multiple fixing devices can effectively prevent the spiral air pipe from falling off. The service life of the air pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral air ducts, in particular to a spiral heat-insulating air duct with a double-layer structure. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used for thermal insulation of pipelines in petroleum, chemical industry, aerospace, hot spring, military, central heating, central air conditioning, municipal and other fields. For example, the prior art: CN220524336U, an insulated air duct, relates to the technical field of insulated air duct, includes a pipe body, and a dehumidification component is arranged on the outer wall of the pipe body; the dehumidification component includes a plurality of first water absorbing parts, a plurality of first notches, a plurality of second notches, a plurality of second water absorbing parts, a plurality of third notches, a plurality of mounting frames and a plurality of fans, a plurality of first water absorbing parts and a second water absorbing parts are fixedly installed on the outer wall of the pipe body, a plurality of first notches are opened on one side of the first water absorbing part, a plurality of second notches are opened at one end of the first water absorbing part, a plurality of third notches are opened at one end of the second water absorbing part, a plurality of mounting frames are fixedly installed on the outer wall of the pipe body, and a plurality of fans are arranged inside the mounting frames.

[0003] There are other existing technologies:

[0004] CN211475237U, a heat-insulating air duct;

[0005] CN208703416U, an internally insulated air duct.

[0006] The above-mentioned prior art mentions a double-layer spiral insulation air duct, in which insulation materials are only arranged on the inner and outer sides. After long-term use, the insulation materials are easy to separate and fall off, thus reducing the service life of the air duct. Utility Model Content

[0007] The utility model aims to provide a spiral heat-insulating air duct with a double-layer structure to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-layer spiral insulated air duct, including a spiral air duct, characterized in that: the outer ring of the spiral air duct is provided with insulation material, a clamp is provided at the center position of the outer ring of the insulation material, connecting flanges are provided at both ends of the spiral air duct, a locking platform is provided on the inner side of the connecting flange, a threaded hole is opened in the center of the locking platform, a screw is vertically rotatably installed at the center of the threaded hole, a rotating wrench is provided at the top of the screw, and a clamping block is provided at the bottom of the screw.

[0009] Preferably, a round block is fixedly connected to the bottom of the screw rod, and the round block is embedded in the pressing block.

[0010] Preferably, the thermal insulation material is made of four parts spliced ​​together.

[0011] Preferably, the locking platform and the corresponding rotating wrench, screw rod and pressing block are arranged at four locations on the connecting flange and are evenly distributed.

[0012] Preferably, the bottom of the compression block is arc-shaped and fits the surface of the thermal insulation material.

[0013] Preferably, the downward rotation distances of the four screws should be consistent.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The double-layer spiral insulated air duct has an insulation material attached to the outside of the spiral air duct, which is fixed by a clamp. The two ends are fixed by the clamping blocks on the connecting flange. The number of clamps is increased according to the length of the spiral air duct to stabilize the insulation material. The insulation material is installed on the ordinary spiral air duct to transform the spiral air duct for upgrading, without replacing the entire air duct.

[0016] 2. The double-layer spiral insulation duct, the insulation material of the spiral duct can be disassembled and replaced at any time, and the multiple fixing devices can effectively prevent it from falling off, thereby increasing the service life of the duct.

[0017] 3. The double-layer spiral insulation duct can adjust the height of the compression block by rotating the screw, so that the connecting flange can be installed with spiral ducts and insulation materials of different thicknesses, thereby improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a top view of the structure of the utility model;

[0020] Figure 3 for Figure 2 The sectional view of the cutting line at point A is shown;

[0021] Figure 4 for Figure 2 The sectional view of the section line at point B is shown;

[0022] Figure 5 for Figure 2 The sectional view is shown along the cutting line C.

[0023] In the figure: 1. spiral duct; 2. thermal insulation material; 3. clamp; 4. connecting flange; 5. locking platform; 6. turning wrench; 7. screw; 8. clamping block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: See Figure 1 The utility model provides a technical solution: a spiral heat-insulating air duct with a double-layer structure.

[0026] Among them, the outer circle of the spiral air duct 1 is provided with insulation material 2, the center position of the outer circle of the insulation material 2 is provided with a clamp 3, connecting flanges 4 are provided at both ends of the spiral air duct 1, and a locking platform 5 is provided on the inner side of the connecting flange 4. A threaded hole is opened in the center of the locking platform 5, and a screw rod 7 is vertically rotatably installed in the center of the threaded hole. A rotating wrench 6 is provided on the top of the screw 7, and a clamping block 8 is provided at the bottom of the screw 7.

[0027] In this embodiment, the thermal insulation material 2 is attached to the outer side of the spiral air duct 1, so that the temperature inside the spiral air duct 1 is not easy to evaporate, thereby increasing the thermal insulation performance of the spiral air duct 1. The hoop 3 is composed of two semicircular iron rings, which are fixed at both ends by screws. The inner diameter of the hoop 3 is the same as the outer diameter of the thermal insulation material 2, which is attached to the surface of the thermal insulation material 2. The locking hoop 3 can fix the thermal insulation material 2 on the spiral air duct 1. The connecting flanges 4 at both ends of the spiral air duct 1 are used to connect the spiral air duct 1 or connect other connecting parts. By rotating the rotating wrench 6 on the locking platform 5, the screw 7 is driven to rotate, so that the thread on the screw 7 is engaged with the inner thread of the threaded hole on the locking platform 5, thereby driving the screw 7 to move downward, and then the clamping block 8 at the bottom of the screw 7 moves downward, and finally the bottom of the clamping block 8 is attached to the thermal insulation material 2 to fix the two ends of the thermal insulation material 2, and the thermal insulation material 2 is more stable with the clamping hoop 3.

[0028] Among them, a round block is fixedly connected to the bottom of the screw rod 7, and the round block is embedded in the pressing block 8.

[0029] In this embodiment, the round block rotates with the screw 7. The diameter of the hole for embedding the round block at the top opening is the same as the diameter of the screw 7, but the diameter of the round block is larger than the diameter of the screw 7. Therefore, the round block cannot be taken out from the clamping block 8. When the screw 7 is reversed, the clamping block 8 is pulled up by the round block, and the round block itself rotates in the clamping block 8, so that the clamping block 8 does not rotate with the screw 7, and the clamping block 8 always remains parallel to the spiral air duct 1.

[0030] Among them, the thermal insulation material 2 is formed by splicing four parts.

[0031] In this embodiment, each piece of insulation material 2 is a quarter of a circle, and four pieces of insulation material 2 are assembled into a circle to wrap the spiral air duct 1.

[0032] The locking platform 5 and the corresponding rotating wrench 6 , screw rod 7 and pressing block 8 are arranged at four locations on the connecting flange 4 and are evenly distributed.

[0033] In this embodiment, such a structure forms a fixed assembly to correspond to the corresponding thermal insulation materials 2 one by one, so that each individual thermal insulation material 2 is fixed by a clamp 3 and a clamping block 8, and the thermal insulation material 2 is more stable and not easy to fall off.

[0034] The bottom of the pressing block 8 is arc-shaped and fits the surface of the thermal insulation material 2 .

[0035] In this embodiment, the pressing block 8 can completely fit the surface of the thermal insulation material 2 to thereby press it and apply force more evenly.

[0036] The downward rotation distances of the screw rods 7 at four locations should be consistent.

[0037] In this embodiment, after the spiral ducts 1 of different diameters are attached with insulation materials 2 of different thicknesses, the overall diameters will change. By pressing down the clamping block 8 at different distances, the connecting flange 4 can fix the spiral ducts 1 of various diameters. The rotation and pressing distances of the screws 7 at four locations are consistent, so that the spiral duct 1 is always located at the center of the connecting flange 4.

[0038] Working principle: thermal insulation material 2 is attached to the outside of the spiral air duct 1, and the thermal insulation material 2 is used to form a circle to wrap the spiral air duct 1, and is locked and fixed by two clamps 3. More thermal insulation material 2 and clamps 3 are installed according to the length of the spiral air duct 1. Connecting flanges 4 are installed at both ends of the spiral air duct 1. The pressing block 8 is lowered by rotating the rotating plate 6 and pressed on the thermal insulation material 2. The pressing blocks 8 at four locations are lowered to the same position to ensure that the center line of the spiral air duct 1 and the center line of the connecting flange 4 are aligned. The two ends of the spiral air duct 1 are fixed by the pressing blocks 8. The overall air duct can be upgraded by installing thermal insulation material 2 on the ordinary spiral air duct 1 to transform the spiral air duct 1 without replacing the entire air duct. The thermal insulation material 2 of the spiral air duct 1 can also be disassembled and replaced at any time. Multiple fixing devices can effectively prevent the thermal insulation material from falling off and increase the service life of the air duct.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer spiral heat-insulating air duct, comprising a spiral air duct (1), characterized in that: The outer ring of the spiral air duct (1) is provided with a heat-insulating material (2), and a clamp (3) is provided at the center of the outer ring of the heat-insulating material (2). The two ends of the spiral air duct (1) are provided with connecting flanges (4), and a locking platform (5) is provided on the inner side of the connecting flange (4). A threaded hole is opened at the center of the locking platform (5), and a screw rod (7) is vertically rotatably installed at the center of the threaded hole. A rotating wrench (6) is provided at the top of the screw rod (7), and a pressing block (8) is provided at the bottom of the screw rod (7).

2. The double-layer spiral heat-insulating air duct according to claim 1, characterized in that: A round block is fixedly connected to the bottom of the screw rod (7), and the round block is embedded in the pressing block (8).

3. The double-layer spiral heat-insulating air duct according to claim 1, characterized in that: The thermal insulation material (2) is formed by splicing four parts.

4. The double-layer spiral heat-insulating air duct according to claim 1, characterized in that: The locking platform (5) and the corresponding rotating wrench (6), screw rod (7) and pressing block (8) are arranged at four locations on the connecting flange (4) and are evenly distributed.

5. The double-layer spiral heat-insulating air duct according to claim 1, characterized in that: The bottom of the pressing block (8) is in an arc shape and fits the surface of the thermal insulation material (2).

6. The double-layer spiral heat-insulating air duct according to claim 1, characterized in that: The downward rotation distance of the screw rod (7) at four locations should be consistent.

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