Oil smoke exhaust pipe

By designing a fume exhaust pipe that combines an inclined outlet and a rotatable baffle, the problem of poor fume exhaust caused by shared residential exhaust pipes is solved, achieving better smoke exhaust effect and preventing rainwater intrusion.

CN224108276UActive Publication Date: 2026-04-10SHANGHAI HONGPEI ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HONGPEI ELECTRONIC TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing residential exhaust pipes are shared, resulting in poor exhaust performance and inefficient ventilation.

Method used

An oil fume exhaust pipe was designed, including a pipe body, a connecting nozzle, an inclined outlet, a fixed baffle, and a rotatable circular baffle. The angle between the inclined outlet and the length direction of the pipe body is greater than 30° and less than 60°. The fixed baffle is fixedly connected to the wall. The circular baffle rotates and opens under the action of a fan, and the fumes are directly discharged along the pipe body.

Benefits of technology

It improves the exhaust effect of cooking fumes, prevents rainwater from entering, and enhances sealing and backflow prevention.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224108276U_ABST
    Figure CN224108276U_ABST
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Abstract

The utility model provides a lampblack exhaust pipe. The exhaust pipe comprises a pipe body, a connecting nozzle, an inclined outlet, a fixed baffle and a circular baffle, wherein the connecting nozzle is arranged at the first end of the pipe body and used for being connected with a smoke exhaust port or a smoke exhaust hose of the range hood; the inclined outlet is formed in the second end of the pipe body; the fixed baffle is fixedly arranged on the pipe body and used for being connected with the inner side of a wall surface; the circular baffle is rotationally connected with the inner wall face of the pipe body through a rotating shaft, and the included angle between the diagonal plane of the inclined outlet and the length direction of the pipe body is larger than 30 degrees and smaller than 60 degrees. During installation, the second end of the pipe body penetrates through the wall body and extends out of the wall until the fixed baffle abuts against the wall surface, then the fixed baffle is fixedly connected with the wall surface, the connecting nozzle at the first end of the pipe body is connected with a smoke exhaust port or a smoke exhaust hose of the range hood, and in the smoke exhaust process, smoke pushes the circular baffle to rotate and open under the action of a fan in the range hood; and directly discharging along the pipe body. The exhaust pipe directly extends out of the wall, and a better oil smoke exhaust effect can be achieved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of smoke exhaust equipment, and particularly relates to an oil fume exhaust pipe. BACKGROUND

[0002] The existing oil fume exhaust is generally connected to the exhaust pipe of the oil fume extractor at one end of the hose and to the exhaust port of a residence at the other end, but the exhaust pipe of the residence is shared by the whole building, and the exhaust effect is very poor, causing poor exhaust of oil fume. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the utility model aims to provide an oil fume exhaust pipe.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides an oil fume exhaust pipe, which comprises a pipe body, a connecting nozzle arranged at the first end of the pipe body and used for connecting with the smoke outlet of an oil fume extractor or a smoke exhaust hose, an inclined outlet arranged at the second end of the pipe body, a fixed baffle fixed to the pipe body and used for connecting with the inner side of a wall, and a circular baffle rotatably arranged in the first end of the pipe body, the circular baffle being rotatably connected with the inner wall of the pipe body through a rotating shaft, and the included angle between the inclined surface of the inclined outlet and the length direction of the pipe body is greater than 30° and less than 60°.

[0005] Optionally, the fixed baffle is provided with a connecting hole used for fixed connection with the wall, or the fixed baffle is provided with double-sided adhesive tape used for fixed adhesion with the wall.

[0006] Optionally, a horn pipe is arranged in the second end of the pipe body and close to the inclined outlet, the small-aperture end of the horn pipe is close to the second end of the pipe body, the large-aperture end of the horn pipe is close to the first end of the pipe body, and the large-aperture end of the horn pipe is fixedly connected with the inner side wall of the pipe body.

[0007] Optionally, the large-aperture end of the horn pipe is provided with a first extension section arranged in parallel with the pipe body, the first extension section is fixedly adhesively connected with the inner side wall of the pipe body, and the small-aperture end of the horn pipe is provided with a second extension section arranged in parallel with the pipe body.

[0008] Optionally, the connecting nozzle is provided with a plurality of annular grooves used for connecting with the smoke outlet of the oil fume extractor or the smoke exhaust hose.

[0009] Optionally, a sealing gasket is further arranged on the end wall or the side wall of the connecting nozzle.

[0010] Optionally, a first arc-shaped blocking strip is arranged on the inner side wall of the pipe body at a first side of the circular baffle, a second arc-shaped blocking strip is arranged on the inner side wall of the pipe body at a second side of the circular baffle, the first arc-shaped blocking strip is arranged at a side of the circular baffle close to the inclined outlet, the first arc-shaped blocking strip is used for blocking the top end of the circular baffle, the second arc-shaped blocking strip is arranged at a side of the circular baffle close to the connecting nozzle, and the second arc-shaped blocking strip is used for blocking the bottom end of the circular baffle.

[0011] As described above, the oil fume exhaust pipe has the following beneficial effects: when the oil fume exhaust pipe is used, the second end of the pipe body is inserted through the wall to extend outside the wall until the fixed baffle abuts against the wall surface, then the fixed baffle is fixedly connected with the wall surface, the connecting nozzle of the first end of the pipe body is connected with the smoke outlet of the range hood or the smoke exhaust hose, in the smoke exhaust process, the smoke gas drives the circular baffle to rotate and open under the action of the fan in the range hood, and is directly exhausted along the pipe body. The exhaust pipe of the application directly extends to the outside of the wall and extends by a length, so that better oil fume exhaust effect can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A structure diagram of the oil fume exhaust pipe is shown. DETAILED DESCRIPTION

[0013] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. The present application can also be implemented or applied in different specific embodiments, and various modifications or changes can be made based on different views and applications without departing from the spirit of the present application. When describing the embodiments of the present application, the cross-sectional view of the device structure may, for convenience of description, be partially enlarged without general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0014] For the convenience of description, spatial relationship words such as "under", "below", "lower", "under", "above", "upper" and the like may be used to describe the relationship between one element or feature and other elements or features shown in the drawings. It will be understood that these spatial relationship words are intended to include other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as "between" two layers, it can be the only layer between the two layers, or one or more intervening layers can also be present.

[0015] It should be noted that the drawings provided in the present embodiment only schematically illustrate the basic concept of the present application, and in the drawings, only the components related to the present application are shown, not the components in the actual implementation, the shape, size and number of components in the actual implementation can be randomly changed, and the component layout can be more complex. In order to make the drawings as simple as possible, not all structures are marked in each drawing.

[0016] As shown in Figure 1 The present embodiment provides a kind of oil fume exhaust pipe, the utility model provides a kind of oil fume exhaust pipe, the exhaust pipe 10 includes pipe body 11, be set to the first end of the pipe body 11 for being connected with the exhaust port of range hood or exhaust hose connection nozzle 12, be set to the second end of the pipe body 11 inclined outlet 13, be fixedly arranged on the pipe body 11 for being connected with the inner side of wall fixed baffle 14, and the circular baffle 15 of rotatable setting in the first end of the pipe body 11, the circular baffle 15 is rotatably connected with the inner wall of pipe body 11 by pivot 16, the included angle of the inclined surface of inclined outlet 13 and the length direction of pipe body 11 is greater than 30 ° and less than 60 °.

[0017] Preferably, the included angle of the inclined surface of inclined outlet 13 and the length direction of pipe body 11 is 45 °. When installing exhaust pipe 10, the longer part of the second end of pipe body 11 is installed upwards, and in rainy days, rainwater can be prevented from entering pipe body 11 and flowing into the room along pipe body 11.

[0018] When using the oil fume exhaust pipe of the present application, during installation, the second end of pipe body 11 is inserted through the wall and extends outside the wall until the fixed baffle 14 abuts against the wall surface, then the fixed baffle 14 is fixedly connected with the wall surface, and then the connection nozzle 12 at the first end of the pipe body 11 is connected with the exhaust port of the range hood or the exhaust hose. During the exhaust process, the smoke gas is pushed to rotate and open the circular baffle 15 under the action of the fan in the range hood, and is directly discharged along the pipe body 11. The exhaust pipe 10 of the present application directly extends to the outside of the wall, and extends a certain length, which can achieve better oil fume exhaust effect.

[0019] Specifically, the fixed baffle 14 is provided with a connecting hole 17 for fixed connection with the wall surface, or the fixed baffle 14 is provided with a double-sided adhesive tape 18 for fixedly bonding with the wall surface.

[0020] Further, to prevent rainwater from flowing along the inner wall of pipe body 11 to the range hood, a horn pipe 19 is arranged at the second end of pipe body 11 close to the inclined outlet 13, the small aperture end of the horn pipe 19 is close to the second end of the pipe body 11, the large aperture end of the horn pipe 19 is close to the first end of the pipe body 11, and the large aperture end of the horn pipe 19 is fixedly connected with the inner wall of the pipe body 11.

[0021] Specifically, the large-aperture end of the horn pipe 19 is provided with a first extension section 20 arranged in parallel with the pipe body 11, and the first extension section 20 is fixedly bonded to the inner side wall of the pipe body 11. The small-aperture end of the horn pipe 19 is provided with a second extension section 21 arranged in parallel with the pipe body 11.

[0022] In order to facilitate the connection of the connection nozzle 12 with the smoke outlet of the range hood or the smoke exhaust hose, the connection nozzle 12 is provided with a plurality of annular grooves 22 for connecting with the smoke outlet of the range hood or the smoke exhaust hose.

[0023] In order to achieve better sealing effect, the end wall or the side wall of the connection nozzle 12 is further provided with a sealing gasket 23.

[0024] In order to prevent external airflow from flowing towards the range hood, the first arc-shaped baffle 24 is arranged on the inner side wall of the pipe body 11 at the first side of the circular baffle 15, and the second arc-shaped baffle 25 is arranged on the inner side wall of the pipe body 11 at the second side of the circular baffle 15. The first arc-shaped baffle 24 is arranged at the side of the circular baffle 15 close to the inclined outlet 13, and is used to block the top end of the circular baffle 24. The second arc-shaped baffle 25 is arranged at the side of the circular baffle 15 close to the connection nozzle 12, and is used to block the bottom end of the circular baffle 15.

[0025] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present application should be covered by the claims of the present application.

Claims

1. An oil fume exhaust pipe, characterized by, The exhaust pipe comprises a pipe body, a connecting nozzle arranged at a first end of the pipe body for connecting with an exhaust outlet of a range hood or an exhaust hose, an inclined outlet arranged at a second end of the pipe body, a fixed baffle fixedly arranged on the pipe body for connecting with an inner side of a wall surface, and a circular baffle rotatably arranged in the first end of the pipe body, the circular baffle being rotatably connected with an inner wall surface of the pipe body through a rotating shaft, and an included angle between a chamfer surface of the inclined outlet and a length direction of the pipe body being greater than 30° and less than 60°.

2. The oil smoke exhaust pipe according to claim 1, characterized in that, The fixed baffle is provided with a connecting hole for fixedly connecting with the wall surface, or the fixed baffle is provided with double-sided adhesive tape for fixedly bonding with the wall surface.

3. The oil smoke exhaust pipe according to claim 1, characterized in that, A horn pipe is arranged in the second end of the pipe body close to the inclined outlet, a small aperture end of the horn pipe is close to the second end of the pipe body, a large aperture end of the horn pipe is close to the first end of the pipe body, and the large aperture end of the horn pipe is fixedly connected with the inner side wall of the pipe body.

4. The oil smoke exhaust pipe according to claim 3, characterized in that, The large aperture end of the horn pipe is provided with a first extension section arranged in parallel with the pipe body, the first extension section is fixedly bonded with the inner side wall of the pipe body, and the small aperture end of the horn pipe is provided with a second extension section arranged in parallel with the pipe body.

5. The oil smoke exhaust pipe according to claim 1, characterized in that, The connecting nozzle is provided with a plurality of annular grooves for connecting with the exhaust outlet of the range hood or the exhaust hose.

6. The oil smoke exhaust pipe according to claim 1, characterized in that, A sealing gasket is further arranged on an end wall or a side wall of the connecting nozzle.

7. The oil smoke exhaust pipe according to claim 1, characterized in that, A first arc-shaped baffle is arranged on the inner side wall of the pipe body at a first side of the circular baffle, a second arc-shaped baffle is arranged on the inner side wall of the pipe body at a second side of the circular baffle, the first arc-shaped baffle is arranged at a side of the circular baffle close to the inclined outlet, the first arc-shaped baffle is used for stopping a top end of the circular baffle, the second arc-shaped baffle is arranged at a side of the circular baffle close to the connecting nozzle, and the second arc-shaped baffle is used for stopping a bottom end of the circular baffle.