CN219494353U - Flat air pipe structure - Google Patents

Abstract

The utility model provides a flat air pipe structure, which comprises a pipe body, wherein one end of the pipe body is provided with a faucet, and the other end of the pipe body is provided with a connecting part matched with the faucet; the inner wall of the bell and spigot is provided with an eddy ring; when two flat air pipes are connected, the connecting part on one flat air pipe is inserted into the faucet on the other flat air pipe; when air flows from the flat air pipe, the air flows through the vortex ring and then generates vortex on one side of the vortex ring, which is close to the connecting part, so that a low-pressure area is formed between the vortex ring and the connecting part. According to the utility model, when air flows from the flat air pipe, air flows through the vortex ring, and then vortex is generated on one side of the vortex ring, which is close to the connecting part, so that a low-pressure area is formed between the vortex ring and the connecting part, and the vortex and the low-pressure area can effectively prevent the air in the flat air pipe from leaking out, thereby avoiding the loss of fresh air.

Description

Flat air pipe structure

Technical Field

The utility model relates to the technical field of indoor air purification, in particular to a flat air pipe structure.

Background

The indoor ventilation and purification of modern buildings, particularly residential, government and business offices, has become a very important technical problem concerning the working environment and physical health of indoor personnel.

The existing indoor air purification technology is mainly realized by a fresh air blower and a flat air pipe, indoor dirty air is discharged through the flat air pipe and is led into the fresh air blower, and after measures such as sterilization, disinfection, filtration and the like are carried out on the air by the fresh air blower, the air is input into a room, so that the room is fresh and clean at all times.

In the process, the main function of the flat air pipe is to take charge of air transportation. In practice, the flat air pipes are formed by splicing and assembling multiple sections end to end, and each section of flat air pipes are connected in a socket connection mode, namely, one end with smaller caliber on one section of flat air pipe is inserted into one end with larger caliber on the other section of flat air pipe, so that the connection between the two sections of flat air pipes is realized.

However, due to the adoption of the socket connection mode, after long-time use, the plugging position of the flat air pipe is easy to generate gaps due to the factors such as ageing of the sealant or deformation of the pipe orifice, and due to the fact that the air pressure in the flat air pipe is larger than that outside the pipe when the flat air pipe supplies air, leakage of fresh air in the pipe can be caused, fresh air loss is further caused, and indoor air purification effect is reduced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a flat air pipe structure.

The utility model aims at realizing the following technical scheme: a flat air duct structure comprises a duct body, wherein one end of the duct body is a faucet, and the other end of the duct body is provided with a connecting part matched with the faucet; the inner wall of the bell and spigot is provided with an eddy ring; when two flat air pipes are connected, the connecting part on one flat air pipe is inserted into the faucet on the other flat air pipe; when air flows from the flat air pipe, the air flows through the vortex ring and then generates vortex on one side of the vortex ring, which is close to the connecting part, so that a low-pressure area is formed between the vortex ring and the connecting part.

Preferably, the cross section of the tube body is elliptical.

Preferably, an arc transition surface is arranged between one side of the vortex ring far away from the connecting part and the inner wall of the pipe body, and one side of the vortex ring close to the connecting part is vertical to the inner wall of the pipe body.

Preferably, the tube body is made of PVC material.

Preferably, a sealing ring is arranged on the outer ring surface of the connecting part.

Preferably, the sealing ring is made of nitrile rubber.

Preferably, the height of the vortex ring protruding from the inner wall of the pipe body is 5-8 mm.

The beneficial effects of the utility model are as follows: according to the utility model, when air flows from the flat air pipe, air flows through the vortex ring, and then vortex is generated on one side of the vortex ring, which is close to the connecting part, so that a low-pressure area is formed between the vortex ring and the connecting part, and the vortex and the low-pressure area can effectively prevent the air in the flat air pipe from leaking out, thereby avoiding the loss of fresh air.

Drawings

FIG. 1 is a schematic view of one of the directions of the present utility model.

Fig. 2 is a schematic view of another direction of the present utility model.

FIG. 3 is a schematic view of two flat ductwork connected.

Fig. 4 is a cross-sectional view of two flat ductwork connected.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic structural view of a swirl ring.

Fig. 7 is a schematic diagram of the principle of the present utility model.

In the figure: 1. the pipe body, 2, the bell and spigot, 3, connecting portion, 4, vortex ring, 5, sealing washer, 6, circular arc transitional surface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1-7, a flat air duct structure comprises a duct body 1, wherein the cross section of the duct body 1 is elliptical. The tube body 1 is made of PVC material. One end of the pipe body 1 is provided with a bell and spigot joint 2, and the other end of the pipe body 2 is provided with a connecting part 3 matched with the bell and spigot joint. The inner wall of the bell and spigot 2 is provided with a vortex ring 4. When two flat air pipes are connected, the connecting part 3 on one flat air pipe is inserted into the faucet 2 on the other flat air pipe. The outer ring surface of the connecting part 3 is provided with a sealing ring 5. The sealing ring 5 is made of nitrile rubber. In this embodiment, two sealing rings 5 are provided on the connecting portion 3. The connecting part 3 is in sealing fit with the bell and spigot 2 through a sealing ring 5 on the outer ring surface.

The swirl ring 4 is a separate component which is fitted to the inner wall of the socket 2. The vortex ring 4 is adhered to the inner wall of the bell and spigot joint 2 through glue. An arc transition surface 6 is arranged between one side of the vortex ring 4 far away from the connecting part 3 and the inner wall of the pipe body 1, and one side of the vortex ring 4 close to the connecting part 3 is vertical to the inner wall of the pipe body 1. When air flows from the flat air pipe, the arc transition surface 6 on one side of the vortex ring 4, which is close to the connecting part 3, is an upstream surface, and the other side is a back flow surface, and the arc transition surface 6 can effectively reduce the resistance when the air flows through the vortex ring 4. The distance between the back flow side of the vortex ring 4 and the end face of the connecting part is 1-3 mm. The height of the vortex ring 4 protruding out of the inner wall of the pipe body 1 is 5-8 mm.

When air flows from the flat air pipes, the air flows through the vortex ring to generate vortex on one side of the vortex ring close to the connecting part, a low-pressure area is formed between the vortex ring and the connecting part due to the generation of the vortex, the vortex and the low-pressure area are just positioned at the joint of the two flat air pipes, and the generation of the vortex and the low-pressure area can effectively prevent the air in the flat air pipes from leaking from the joint, so that the loss of fresh air is avoided.

The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.

Claims (7)

1. The flat air pipe structure is characterized by comprising a pipe body, wherein one end of the pipe body is provided with a faucet, and the other end of the pipe body is provided with a connecting part matched with the faucet; the inner wall of the bell and spigot is provided with an eddy ring; when two flat air pipes are connected, the connecting part on one flat air pipe is inserted into the faucet on the other flat air pipe; when air flows from the flat air pipe, the air flows through the vortex ring and then generates vortex on one side of the vortex ring, which is close to the connecting part, so that a low-pressure area is formed between the vortex ring and the connecting part.

2. The flat blast structure according to claim 1, wherein said tubular body has an elliptical cross section.

3. The flat air duct structure according to claim 1, wherein an arc transition surface is arranged between one side of the vortex ring away from the connecting portion and the inner wall of the duct body, and one side of the vortex ring close to the connecting portion is perpendicular to the inner wall of the duct body.

4. A flat duct structure according to claim 1, wherein the duct body is made of PVC material.

5. The flat blast pipe structure according to claim 1, wherein a sealing ring is arranged on the outer ring surface of the connecting part.

6. The flat blast structure according to claim 5, wherein said sealing ring is made of nitrile rubber.

7. The flat blast pipe structure according to claim 1, wherein the height of the vortex ring protruding from the inner wall of the pipe body is 5-8 mm.