Heat preservation air pipe

By installing insulation and docking mechanisms on the outer wall of the duct, the problems of easy aging and detachment of duct insulation materials and installation misalignment are solved, achieving higher insulation effect and installation efficiency.

CN224150471UActive Publication Date: 2026-04-21JIANGSU DAFENG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU DAFENG ENVIRONMENTAL TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing duct insulation materials are prone to aging and falling off, resulting in poor insulation performance. Furthermore, ducts are prone to shifting during installation, affecting installation efficiency.

Method used

An insulation mechanism is installed on the outer wall of the duct, including components such as insert plates, fixing seats, connecting seats, pull rods and tension springs. The design of the clamping rods and clamping seats enables the quick disassembly and fixing of the insulation shell, and the combination of the docking plate and the insertion hole enables the quick docking and positioning of the duct.

Benefits of technology

It improves the insulation effect of air ducts, extends their service life, avoids the aging of insulation materials, and improves the efficiency of air duct connection and installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224150471U_ABST
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Abstract

The utility model discloses a heat preservation air pipe which comprises a pipe body, a heat preservation mechanism is arranged on the pipe body, the heat preservation mechanism comprises an inserting plate and a fixing base, and a first heat preservation shell is inserted into the inserting plate. The heat preservation shell containing the heat preservation cotton is arranged on the outer wall of the pipe body, the heat preservation effect of the air pipe can be improved, due to the fact that the heat preservation cotton is arranged in the first heat preservation shell, the aging time of heat preservation materials can be shortened, and when the first heat preservation shell needs to be detached, a worker pushes the grip to enable the clamping rod to be separated from the groove in the clamping base, and the heat preservation effect is improved. Then the clamping rod is turned over with the connecting base as the axis, the clamping rod is made to be away from the clamping base, at the moment, the first heat preservation shell is not limited by the clamping rod and can be taken down from the pipe body, the first heat preservation shell can be rapidly detached and replaced, the air pipe can be protected through the first heat preservation shell, and the problem that the pipe body is sunken due to collision can be solved; and the service life of the air pipe is further prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of air duct technology, specifically relating to an insulated air duct. Background Technology

[0002] Air ducts are piping systems used to transport and distribute air. The traditional way to insulate air ducts is to lay insulation material on the surface of the metal air duct.

[0003] Currently, to reinforce insulation materials, fasteners are needed to penetrate the insulation material and weld them to the duct, or glue is used to attach the insulation material. This process is complex, and the insulation material is exposed to the outside. After prolonged contact with air, the insulation material will age and detach from the surface of the duct, resulting in poor insulation performance. Therefore, an insulated duct is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an insulated air duct for existing devices, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an insulated air duct, comprising a duct body, wherein an insulation mechanism is provided on the duct body;

[0006] The insulation mechanism includes an insert plate and a fixed base. A first insulation shell is inserted into the insert plate. A connecting seat is hinged to the fixed base via a pin. A limit hole is formed inside the connecting seat. A limit block is slidably connected inside the limit hole. A pull rod is fixedly connected to the limit block. A locking rod is fixedly connected to the pull rod. A first connecting ring is fixedly connected to the connecting base. A second connecting ring is fixedly connected to the pull rod. A tension spring is fixedly connected to the first connecting ring. The other end of the tension spring is fixedly connected to the second connecting ring.

[0007] By installing a first insulation shell containing insulation cotton on the outer wall of the duct, the insulation effect of the duct can be improved. Since the insulation cotton is placed inside the first insulation shell, it can slow down the aging time of the insulation material. However, when the first insulation shell needs to be disassembled, the operator pushes the handle to disengage the locking rod from the groove on the locking seat, and then flips the locking rod around the connecting seat as the axis, so that the locking rod is away from the locking seat. At this time, the first insulation shell loses the limitation of the locking rod and can be removed from the duct, which facilitates the quick disassembly and replacement of the first insulation shell. The first insulation shell can protect the duct and prevent the duct from being dented due to collision, thus further improving the service life of the duct.

[0008] The first insulation shell is filled with insulation cotton, and a card holder is fixedly connected to the first insulation shell. The card holder is located in the groove of the card holder. The insulation cotton improves the insulation effect of the air duct, and the card holder allows the card holder to be easily locked in the card holder under the action of the tension spring.

[0009] This utility model further explains that the insert plate is fixedly connected to the outer wall of the tube body, and there are two insert plates. The two insert plates are respectively fixedly connected to the upper surface and the bottom of the tube body. The fixing seat is fixedly connected to the insert plate. The insert plate can limit the position of the first insulation shell and the second insulation shell.

[0010] This utility model further illustrates that the tension spring is sleeved on the pull rod, a handle is fixedly connected to the lever, and a second heat-insulating shell is inserted into the inside of the insert plate. The handle makes it convenient for workers to pull the pull rod.

[0011] The present invention further explains that there are two card holders, which are respectively fixedly connected to the upper surface and bottom of the first insulation shell. The card holders facilitate the fixing of the first insulation shell to the outer wall of the tube.

[0012] The present invention further explains that a first flange is fixedly connected to the front end of the pipe body, and a second flange is fixedly connected to the rear end of the pipe body. The first flange is provided with a mounting hole, which facilitates the docking and fixing of the air ducts.

[0013] This utility model further illustrates that a docking mechanism is provided on the second flange. The docking mechanism includes a docking plate, which is fixedly connected to the second flange. An insertion hole is provided on the first flange. The docking mechanism facilitates quick docking of air ducts, avoiding misalignment during installation. By providing the docking plate and insertion hole, multiple air ducts can be positioned during docking, preventing misalignment during installation and improving the efficiency of bolt connection installation.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] 1. This insulated air duct improves its insulation performance by installing a first insulation shell containing insulation cotton on the outer wall of the duct body. Since the insulation cotton is placed inside the first insulation shell, it can slow down the aging time of the insulation material. However, when the first insulation shell needs to be disassembled, the operator pushes the handle to disengage the locking rod from the groove on the locking seat, and then flips the locking rod around the connecting seat as the axis, so that the locking rod is away from the locking seat. At this time, the first insulation shell loses the limitation of the locking rod and can be removed from the duct body, which facilitates quick disassembly and replacement of the first insulation shell. The first insulation shell can protect the air duct and prevent the duct body from being dented due to collision, thus further improving the service life of the air duct.

[0016] 2. This insulated air duct, with its connecting plate and insertion holes, allows for easy positioning of multiple air ducts during connection, preventing misalignment during installation and improving the efficiency of bolted connections. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the fixing base structure of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the connector of this utility model;

[0022] Figure 5 This is a schematic diagram of the first heat-insulating shell structure of this utility model.

[0023] In the diagram: 1. Pipe body; 2. Insulation mechanism; 201. Insert plate; 202. Fixing seat; 203. Connecting seat; 204. Limiting hole; 205. Limiting block; 206. Pull rod; 207. Tension spring; 208. First connecting ring; 209. Second connecting ring; 210. Locking rod; 211. Handle; 212. First insulation shell; 213. Insulation cotton; 214. Locking seat; 215. Second insulation shell; 3. Docking mechanism; 301. Docking plate; 302. Insertion hole; 4. First flange; 5. Mounting hole; 6. Second flange. Detailed Implementation

[0024] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-5 One embodiment of this utility model is: a heat-insulating air duct, including a duct body 1, on which a heat-insulating mechanism 2 is provided;

[0026] The insulation mechanism 2 includes an insert plate 201 and a fixed base 202. A first insulation shell 212 is inserted into the insert plate 201. A connecting base 203 is hinged to the fixed base 202 via a pin. A limiting hole 204 is formed inside the connecting base 203. A limiting block 205 is slidably connected inside the limiting hole 204. A pull rod 206 is fixedly connected to the limiting block 205. The limiting block 205 prevents the pull rod 206 from detaching from the connecting base 203. A locking rod 210 is fixedly connected to the pull rod 206. A first connecting ring 208 is fixedly connected to the connecting base 203. A second connecting ring 209 is fixedly connected to the pull rod 206. A tension spring 207 is fixedly connected to the first connecting ring 208. The other end of the tension spring 207 is fixedly connected to the second connecting ring 209. The tension spring 207 can pull the pull rod 206 towards the connecting base 203, thereby locking the pull rod 206 inside the locking base 214. The first insulation shell 212, containing insulation cotton 213, is placed in the groove of the pipe body 1 to prevent the protective shell from falling off. The insulation effect of the duct is improved by setting the first insulation shell 212 containing insulation cotton 213 on the outer wall of the pipe body 1. Since the insulation cotton 213 is placed inside the first insulation shell 212, the aging time of the insulation material can be slowed down. However, when the first insulation shell 212 needs to be disassembled, the operator pushes the handle 211 to make the locking rod 210 disengage from the groove on the locking seat 214, and then flips the locking rod 210 away from the locking seat 214 with the connecting seat 203 as the axis. At this time, the first insulation shell 212 loses the limitation of the locking rod 210 and can be removed from the pipe body 1, which facilitates the quick disassembly and replacement of the first insulation shell 212. The setting of the first insulation shell 212 can protect the duct and prevent the pipe body 1 from being dented due to collision, thus further improving the service life of the duct.

[0027] Further explanation: In this technical solution, because the tension spring 207 is in a stretched state, it will pull the structures at both ends of the tension spring 207 in opposite directions, such as... Figure 4The image shown is a static view after the tension spring 207 has pulled the lever 206. When the user pulls the latch 210 away from the tension spring 207, the lever 206 will be pulled. However, when the user releases the latch 210, both the lever 206 and the latch 210 move towards the first connecting ring 208 under the action of the tension spring 207. Figure 4 That is the final stopping position; the tension spring 207 is designed to ensure that the distance between the lever 210 and the connecting seat 203 is adjustable.

[0028] When it is necessary to disassemble the first insulation shell 212, the locking rod 210 needs to be unwound from the groove on the locking seat 214. The process is to pull the locking rod 210 to increase the distance between the locking rod 210 and the connecting seat 203, so that the distance between the locking rod 210 and the connecting seat 203 is greater than the distance between the connecting seat 203 and the locking seat 214. This ensures that the locking rod 210 is disengaged from the groove of the locking seat 214.

[0029] The interior of the first insulation shell 212 is filled with insulation cotton 213. A card holder 214 is fixedly connected to the first insulation shell 212. The card rod 210 is located in the groove of the card holder 214. The insulation effect of the air duct is improved by the setting of insulation cotton 213. The card holder 214 can be used to make it easy for the card rod 210 to be locked in the card holder 214 under the action of tension spring 207.

[0030] The insert plate 201 is fixedly connected to the outer wall of the tube body 1. There are two insert plates 201, which are fixedly connected to the upper surface and bottom of the tube body 1 respectively. The fixing seat 202 is fixedly connected to the insert plate 201. The insert plate 201 can limit the first insulation shell 212 and the second insulation shell 215.

[0031] A tension spring 207 is fitted onto a pull rod 206, a handle 211 is fixedly connected to a locking rod 210, and a second heat insulation shell 215 is inserted into the inside of the insert plate 201. The handle 211 allows workers to easily pull the pull rod 206.

[0032] There are two card holders 214, which are fixedly connected to the upper surface and bottom of the first insulation shell 212 respectively. The card holders 214 can be used to fix the first insulation shell 212 to the outer wall of the tube body 1.

[0033] The front end of the pipe body 1 is fixedly connected to a first flange 4, and the rear end of the pipe body 1 is fixedly connected to a second flange 6. The first flange 4 is provided with a mounting hole 5, which allows for easy docking and fixing between air ducts.

[0034] Working principle: By setting a first insulation shell 212 containing insulation cotton 213 on the outer wall of the pipe body 1, the insulation effect of the air duct can be improved. Since the insulation cotton 213 is set inside the first insulation shell 212, the aging time of the insulation material can be slowed down. However, when the first insulation shell 212 needs to be disassembled, the operator pushes the handle 211 to make the locking rod 210 disengage from the groove on the locking seat 214, and then flips the locking rod 210 around the connecting seat 203 as the axis, so that the locking rod 210 moves away from the locking seat 214. At this time, the first insulation shell 212 loses the limitation of the locking rod 210 and can be removed from the pipe body 1, which facilitates the quick disassembly and replacement of the first insulation shell 212. The setting of the first insulation shell 212 can protect the air duct and avoid the problem of dents caused by collisions to the pipe body 1, further improving the service life of the air duct.

[0035] Please see Figure 1-5 Based on the above embodiments, in another embodiment of the present invention, a docking mechanism 3 is provided on the second flange 6. The docking mechanism 3 includes a docking plate 301, which is fixedly connected to the second flange 6. An insertion hole 302 is provided on the first flange 4. The docking mechanism 3 facilitates quick docking of the air duct and avoids the problem of misalignment affecting the installation process.

[0036] Working principle: By setting the docking plate 301 and the insertion hole 302, multiple air ducts can be positioned conveniently when docking, which can avoid the air ducts from shifting during docking and installation, thus affecting the efficiency of bolt connection installation and improving the efficiency of air duct docking and installation.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An insulated air duct comprising a duct body (1), characterised in that: The tube body (1) is provided with a heat preservation mechanism (2); The heat preservation mechanism (2) includes an insert plate (201) and a fixed seat (202). A first heat preservation shell (212) is inserted into the insert plate (201). A connecting seat (203) is hinged to the fixed seat (202) by a pin. A limiting hole (204) is opened inside the connecting seat (203). A limiting block (205) is slidably connected inside the limiting hole (204). A pull rod (206) is fixedly connected to the limiting block (205). A locking rod (210) is fixedly connected to the pull rod (206). A first connecting ring (208) is fixedly connected to the connecting seat (203). A second connecting ring (209) is fixedly connected to the pull rod (206). A tension spring (207) is fixedly connected to the first connecting ring (208). The other end of the tension spring (207) is fixedly connected to the second connecting ring (209). The first heat insulation shell (212) is filled with heat insulation cotton (213), and a card seat (214) is fixedly connected to the first heat insulation shell (212). The card rod (210) is located in the groove of the card seat (214).

2. A heat retaining air duct according to claim 1, characterized in that: The insert plate (201) is fixedly connected to the outer wall of the tube body (1). There are two insert plates (201), and the two insert plates (201) are fixedly connected to the upper surface and bottom of the tube body (1) respectively. The fixing seat (202) is fixedly connected to the insert plate (201).

3. A heat retaining air duct according to claim 1, wherein: The tension spring (207) is sleeved on the pull rod (206), the handle (211) is fixedly connected to the lever (210), and the second heat insulation shell (215) is inserted into the inside of the insert plate (201).

4. A heat retaining air duct according to claim 1, wherein: There are two card holders (214), and the two card holders (214) are respectively fixedly connected to the upper surface and the bottom of the first heat insulation shell (212).

5. A heat retaining air duct according to claim 1, wherein: The front end of the pipe body (1) is fixedly connected to a first flange (4), and the rear end of the pipe body (1) is fixedly connected to a second flange (6). The first flange (4) has an installation hole (5).

6. A heat retaining air duct according to claim 5, wherein: The second flange (6) is provided with a docking mechanism (3), which includes a docking plate (301) and is fixedly connected to the second flange (6). The first flange (4) is provided with an insertion hole (302).