CN212361141U

CN212361141U - Phenolic foam ventilating duct

Info

Publication number: CN212361141U
Application number: CN202020853044.XU
Authority: CN
Inventors: 任进福; 任凯; 陈建国
Original assignee: Jiangyin Weiteng Aluminum Foil Synthetic Material Co ltd
Current assignee: Jiangyin Weiteng Aluminum Foil Synthetic Material Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-15
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a phenolic foam air conduit, which comprises a phenolic foam plate-enclosed synthetic air conduit body and a flange plate arranged at the end part of the air conduit body, wherein the flange plate is enclosed by a metal section bar, the metal section bar comprises a flange plate base plate and a groove side plate, the flange plate base plate and the groove side plate enclose a synthetic mounting groove, and the end part of the air conduit body is arranged in the mounting groove; the phenolic foam plate and the groove side plate are arranged in a penetrating mode. The phenolic foam ventilating duct adopts the metal section bar to replace a plastic section bar in the prior art, the connecting piece is arranged in the groove side plate of the metal section bar and the phenolic foam body in a penetrating way, and the relative position of the groove side plate and the phenolic foam body is fixed by the connecting piece, so that the connecting structure is stable and reliable, and the service life of the ventilating duct is prolonged; the metal section is also favorable for improving the flame retardant property of the flange plate, and the material of the metal section has no aging risk.

Description

Phenolic foam ventilating duct

Technical Field

The utility model relates to an air pipe technical field, concretely relates to phenolic foam air pipe.

Background

Phenolic foam materials have excellent flame retardancy, corrosion resistance, aging resistance, sound absorption performance and lower heat conductivity coefficient, so that the phenolic foam materials are increasingly used in composite air pipes of central air conditioners. The cross section of air pipe is the rectangle, and traditional rectangle air pipe tip flange adopts plastic material to enclose to close and makes, and the connected mode between plastic material and the aluminium foil phenolic foam board is: the plastic section bars are provided with groove bodies for clamping the aluminum foil phenolic foam plates, and the plastic section bars are connected at included angles in a bonding manner.

The plastic section ventilating duct flange has the following defects: the problems of degumming, cracking and the like easily occur in the bonding structure of the plastic section, the ageing resistance of the adhesive and the plastic section is poor, the adhesive is mostly inflammable materials, and the overall flame retardant property of the flange is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a phenolic foam air pipe, enclose the connection structure between the metal forming material of synthetic ring flange and the phenolic foam board reliable and stable, have good fire behaviour.

Realize above-mentioned technological effect, the utility model discloses a technical scheme does: a phenolic foam ventilating duct comprises an air duct body formed by enclosing phenolic foam plates and a flange plate arranged at the end part of the air duct body, wherein the flange plate is formed by enclosing metal sectional materials, each metal sectional material comprises a flange plate base plate and a groove side plate, an installation groove is formed by enclosing the flange plate base plate and the groove side plate, and the end part of the air duct body is arranged in the installation groove; the phenolic foam plate is characterized by further comprising a connecting piece, wherein the connecting piece penetrates through the phenolic foam plate and the groove side plate.

The preferable technical scheme is that the connecting piece is a rivet or a self-tapping screw.

The preferred technical scheme does, the connecting piece is the rivet, the nail of rivet is located in the tuber pipe body, the groove curb plate is located the nail of rivet is located with the cap portion.

The preferable technical scheme is that a groove side plate positioned on the outer side of the air pipe body is clamped between a rivet part and a cap part of the rivet.

The preferred technical scheme does, the outward flange of ring flange base plate still is provided with the sand grip, ring flange base plate and groove curb plate enclose and become the clamping groove.

The preferred technical scheme is that the clamping groove and the groove opening of the mounting groove face in the same direction.

The preferable technical scheme is that the metal section is an aluminum alloy section.

The utility model has the advantages and the beneficial effects that:

the phenolic foam ventilating duct adopts the metal section bar to replace a plastic section bar in the prior art, the connecting piece is arranged in the groove side plate of the metal section bar and the phenolic foam body in a penetrating way, and the relative position of the groove side plate and the phenolic foam body is fixed by the connecting piece, so that the connecting structure is stable and reliable, and the service life of the ventilating duct is prolonged;

the metal section is also favorable for improving the flame retardant property of the flange plate, and the material of the metal section has no aging risk.

Drawings

FIG. 1 is a schematic structural view of a phenolic foam ventilation duct of example 1;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic structural view of a phenolic foam ventilation duct of example 2;

FIG. 4 is a schematic top view showing the structure of the flange according to embodiment 2;

FIG. 5 is a schematic cross-sectional view showing the flange plate according to embodiment 2;

fig. 6 is a partial enlarged view of B in fig. 3;

FIG. 7 is a schematic structural view of a phenolic foam plate and a flange of an air duct body according to example 3;

FIG. 8 is a schematic structural view of a phenolic foam plate and a flange of the air duct body of example 4;

in the figure: 1. an air duct body; 2. a flange plate; 21. a flange base plate; 22. a trough side plate; 23. a convex strip; 3. pulling a rivet; 31. a nail part; 32. a cap portion; 4. a primary and secondary rivet; a. mounting grooves; b. and (4) clamping the groove.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The installation process is as follows: the end parts of the air pipe body are assembled in the mounting grooves, and then the connecting pieces are nailed into the air pipe body and the groove side plates. Specifically, the metal section generally comprises a flange base plate and two groove side plates, the two groove side plates and the flange base plate enclose a mounting groove, a connecting piece can be nailed in through the groove side plate at the inner edge of the flange base plate, and the other end of the connecting piece is positioned in a phenolic foam plate or is nailed through the groove side plate at the outer edge of the flange base plate; or the connecting piece is nailed in through the groove side plate at the outer edge of the flange base plate, and the other end of the connecting piece is positioned in the phenolic foam plate, or is nailed through the groove side plate at the inner edge of the flange base plate.

The range of attachment options includes, but is not limited to, rivets or self-tapping screws, with rivets being preferred to ensure that the interior and exterior surfaces of the duct are smooth. The rivet is driven in through the groove side plate at the outer edge or the inner edge of the flange base plate, the diameter of the rivet part is increased, the phenolic foam plate perforated wall is elastically deformed, the peripheral surface of the rivet part is elastically abutted against the phenolic foam plate perforated wall, and the groove side plate at the outer edge or the inner edge of the corresponding flange base plate is clamped between the rivet part and the cap part of the rivet. The connecting structure for keeping the surface of the air duct smooth can also be as follows: the connecting piece can also be a snap rivet, namely the nail part of the snap rivet penetrates through the two groove side plates and the phenolic foam plate, and the two groove side plates and the phenolic foam plate are clamped between the two cap parts of the snap rivet.

The clamping groove is used for providing a clamping part for the flange connection of the ventilating duct at two ends. The clamping groove made of metal is stable in structure and not prone to deformation, and the clamping structure between the ventilating duct sections is more reliable.

The aluminum alloy material has wide metal section material source, low cost and light dead weight, and the oxide layer on the surface can reduce the corrosion rate.

Example 1

As shown in fig. 1-2, the phenolic foam ventilation duct of example 1 includes a duct body 1 formed by enclosing phenolic foam boards and a flange 2 disposed at an end of the duct body, the flange 2 is formed by enclosing a metal section, the metal section includes a flange base plate 21 and a groove side plate 22, the flange base plate 21 and the groove side plate 22 enclose a mounting groove a, and the end of the duct body 1 is disposed in the mounting groove a; the phenolic foam board is characterized by further comprising a pull rivet 3, wherein the top of the pull rivet 3 penetrates through the phenolic foam board and a groove side plate 22 on the outer side of the phenolic foam board.

The rivet 3 has a nail portion located in the phenolic foam board, and the groove side plate 22 on the outer side of the phenolic foam board is interposed between the nail portion 31 and the cap portion 32 of the rivet 3.

Example 2

As shown in fig. 3-6, embodiment 2 is based on embodiment 1, and is different in that a convex strip 23 is further provided on an outer edge of the flange base plate 21, the convex strip 23, the flange base plate 21 and the groove side plate 22 enclose a clamping groove b, the clamping groove b is located on an outer edge of the flange 2, and a notch of the clamping groove b and a notch of the mounting groove a face in the same direction.

Example 3

As shown in fig. 7, example 3 is based on example 2, with the difference that the connecting element is a snap rivet 4, and two grooved side plates 22 and a phenolic foam plate are sandwiched between the caps of the snap rivet 4.

Example 4

As shown in fig. 8, example 4 is based on example 2, and is different in that a blind rivet 3 is inserted into a phenolic foam board and a groove side plate 22 on the inner side of the phenolic foam board, and the groove side plate 22 on the inner side of the phenolic foam board is interposed between a rivet portion 31 and a cap portion 32 of the blind rivet.

In the assembly of the embodiments 1, 2 and 4, a rivet hole is preset on the groove side plate 22, the mounting groove a of the metal section is sleeved on the phenolic foam plate of the air duct body 1, the pulling rivet is driven into the rivet hole, the rivet core of the pulling rivet is pulled out, and the rivet part of the pulling rivet is expanded and is pressed against the hole wall of the phenolic foam plate. The same connection effect can be achieved by using self-tapping screws to penetrate through the two slot side plates 22 and the phenolic foam plate.

Example 3 during assembly, rivet holes are preset in the two slot side plates 22 and the phenolic foam plate, the female rivet penetrates through the rivet holes, and the male rivet is connected with the female rivet.

In examples 2 to 4, the flanges at the end of the air duct were connected by fastening the clamping grooves b with clamps.

The flanges of examples 1-4 were all made of aluminum alloy sections.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A phenolic foam ventilating duct comprises a duct body formed by surrounding phenolic foam plates and a flange plate arranged at the end part of the duct body, and is characterized in that the flange plate is formed by surrounding metal sectional materials, the metal sectional materials comprise a flange plate base plate and a groove side plate, the flange plate base plate and the groove side plate surround a mounting groove, and the end part of the duct body is arranged in the mounting groove; the phenolic foam plate is characterized by further comprising a connecting piece, wherein the connecting piece penetrates through the phenolic foam plate and the groove side plate.

2. The phenolic foam ventilation duct of claim 1, wherein the connectors are rivets or self-tapping screws.

3. The phenolic foam ventilation duct of claim 1, wherein the connector is a rivet, the rivet has a shank portion located in the duct body, and the slot-side plate is sandwiched between the shank portion and the cap portion of the rivet.

4. The phenolic foam ventilation duct of claim 3, wherein the slot side plate located outside the duct body is sandwiched between the head and the head of the rivet.

5. The phenolic foam ventilation duct of claim 1, wherein the flange base plate is further provided with raised strips at the outer edge, and the raised strips, the flange base plate and the duct side plates surround to form clamping grooves.

6. The phenolic foam ventilation duct of claim 5, wherein the clamping groove and the mounting groove have a notch facing in the same direction.

7. The phenolic foam ventilation duct of claim 1, wherein the metal profile is an aluminum alloy profile.