Rectangular air pipe capable of being freely disassembled, assembled and combined

Abstract

The utility model discloses a rectangular air pipe capable of being freely disassembled, assembled and combined, which comprises a first air outlet pipe connected with the output end of a fan, a second air outlet pipe partially sleeved outside the first air outlet pipe, and a limiting component used for fixing the first air outlet pipe and the second air outlet pipe, the limiting assembly comprises a first limiting step arranged on the inner wall of the second air outlet pipe and a limiting plate arranged at the bottom of the outer wall of the first air outlet pipe, sealing assemblies are arranged at the two ends of the first air outlet pipe correspondingly, and when the first air outlet pipe and the second air outlet pipe are installed in an inserted mode, the first limiting step is connected with the top of the first air outlet pipe; the limiting plate is connected with the bottom of the first air outlet pipe and can limit the first air outlet pipe to continue to move upwards, the limiting plate is connected with the bottom of the second air outlet pipe and can limit the second air outlet pipe to move downwards, stable installation of the first air outlet pipe and the second air outlet pipe is achieved, and the overall structural strength and sealing performance are improved by being matched with sealing assemblies at the two ends of the first air outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of stove design, and more specifically relates to a rectangular air duct that can be freely disassembled and assembled. Background Technology

[0002] Currently, the exhaust ducts of built-in range hoods and cooktops on the market are assembled from individual components. This results in poor structural strength and sealing, and due to limited space for connecting the exhaust duct, the duct length cannot be adjusted according to the installation space, leading to poor smoke extraction and ineffective smoke removal. Therefore, there is an urgent need for an exhaust duct that can solve these problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a rectangular air duct that can be freely disassembled and assembled, with the installation length adjustable as needed, and which can improve the overall structural strength and sealing performance.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A rectangular air duct that can be freely assembled and disassembled includes a first air outlet duct connected to the output end of a fan and a second air outlet duct partially sleeved outside the first air outlet duct. It also includes a limiting component for fixing the first air outlet duct and the second air outlet duct. The limiting component includes a first limiting step disposed on the inner wall of the second air outlet duct and a limiting plate disposed on the bottom of the outer wall of the first air outlet duct. The outer surfaces of the first air outlet duct and the second air outlet duct are respectively provided with a plurality of cutting grooves at intervals. Both ends of the first air outlet duct are respectively provided with sealing components.

[0006] According to a first aspect of the present invention, the sealing assembly includes a sealing ring disposed below the limiting plate that can be fitted onto the output end of the fan, and a sealing sponge disposed between the output end of the first air outlet pipe and the inner wall of the second air outlet pipe.

[0007] According to a first aspect of the present invention, the inner diameter of the second air outlet pipe is greater than or equal to the inner diameter of the first air outlet pipe.

[0008] According to a first aspect of the present invention, the inner diameter of the first air outlet pipe is greater than or equal to the inner diameter of the fan outlet.

[0009] According to a first aspect of the present invention, the inner diameter of the sealing ring is larger than the inner diameter of the first air outlet pipe.

[0010] According to a first aspect of the present invention, it further includes an installation component, the installation component including an installation plate disposed at one end of the second air outlet pipe away from the limiting plate and a second limiting step disposed on the inner wall of the first air outlet pipe that can be snapped onto the output end of the fan.

[0011] According to a first aspect of the present invention, the mounting plate is sleeved on the second air outlet pipe, and at least one mounting groove is provided at each of the four corners of the mounting plate.

[0012] According to a first aspect of the present invention, the mounting groove is a U-shaped mounting groove with the opening facing outwards.

[0013] According to a first aspect of the present invention, the second limiting step and the limiting plate are respectively disposed on the inner and outer sides of the first air outlet pipe.

[0014] According to a first aspect of the present invention, the limiting plate has positioning protrusions at both ends on the same side for easy installation and differentiation.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This utility model features multiple cutting grooves spaced apart on the outer surfaces of the first and second air outlet pipes, allowing for flexible selection and adjustment of assembly lengths as needed. When the first and second air outlet pipes are inserted and installed, the first limiting step connects to the top of the first air outlet pipe, restricting its upward displacement, while the limiting plate connects to the bottom of the second air outlet pipe, restricting its downward movement. This achieves stable installation of the first and second air outlet pipes and, in conjunction with the sealing components at both ends of the first air outlet pipe, enhances the overall structural strength and sealing performance. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Appendix Figure 1 This is an overall structural diagram of one embodiment of the present utility model;

[0019] Appendix Figure 2 This is an exploded view of one embodiment of the present invention;

[0020] Appendix Figure 3 This is a front view of one embodiment of the present invention;

[0021] Appendix Figure 4 This is a cross-sectional view along the AA direction of one embodiment of the present invention;

[0022] Appendix Figure 5 This is a structural diagram of the first air outlet duct according to an embodiment of the present invention;

[0023] Appendix Figure 6 This is a structural diagram of the second air outlet duct according to an embodiment of the present invention. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0029] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0030] See attached document Figure 1 To be continued Figure 6 As shown, a rectangular air duct that can be freely disassembled and assembled includes a first air outlet duct 1 connected to the output end of a fan, a second air outlet duct 2 partially sleeved outside the first air outlet duct 1, a limiting component for fixing the first air outlet duct 1 and the second air outlet duct 2, sealing components respectively provided at both ends of the first air outlet duct 1, and an installation component.

[0031] In one embodiment of this utility model, the outer surfaces of the first air outlet pipe 1 and the second air outlet pipe 2 are respectively provided with a plurality of cutting grooves 4, which can be used for segmented cutting during installation, and the user can freely choose to assemble and adjust the length according to their needs.

[0032] In one embodiment of the present invention, the limiting component includes a first limiting step 31 disposed on the inner wall of the second air outlet duct 2 and a limiting plate 32 disposed on the bottom of the outer wall of the first air outlet duct 1. The second limiting step 31 and the limiting plate 32 are respectively disposed on the inner and outer sides of the first air outlet duct 1.

[0033] In one embodiment of this utility model, when the first air outlet pipe 1 and the second air outlet pipe 2 are connected and installed, the first limiting step 31 on the inner wall of the second air outlet pipe 2 is connected to the top of the first air outlet pipe 1 to limit the first air outlet pipe 1 from continuing to move upward; the limiting plate 32 at the bottom of the outer wall of the first air outlet pipe 1 is connected to the bottom of the second air outlet pipe 2 to limit the second air outlet pipe 2 from moving downward, thereby achieving stable installation of the first air outlet pipe 1 and the second air outlet pipe 2.

[0034] In one embodiment of this utility model, positioning protrusions 321 are provided at both ends of the same side of the limiting plate 32 for easy installation and differentiation. The two positioning protrusions 321 are rectangular. By setting the two positioning protrusions 321 at both ends of the same side of the limiting plate 32, the upper and lower sides of the first air outlet pipe 1 can be quickly positioned during installation, avoiding installation errors.

[0035] In one embodiment of this utility model, the sealing assembly includes a sealing ring 51 disposed below the limiting plate 32 that can be fitted onto the output end of the fan, and a sealing sponge disposed between the output end of the first air outlet pipe 1 and the inner wall of the second air outlet pipe 2, so that no air leakage will occur when the length is freely selected for assembly and adjustment, thereby improving the overall sealing performance.

[0036] In one embodiment of this utility model, the inner diameter of the second air outlet pipe 2 is set to be greater than or equal to the inner diameter of the first air outlet pipe 1, so that after the second air outlet pipe 2 is partially sleeved on the outside of the first air outlet pipe 1, the inner wall of the second air outlet pipe 2 will not block the smoke from the first air outlet pipe 1, thereby expanding the smoke exhaust diameter and effectively increasing the smoke exhaust efficiency.

[0037] In one embodiment of this utility model, the inner diameter of the first air outlet pipe 1 is set to be greater than or equal to the inner diameter of the fan output port, and the inner diameter of the sealing ring 51 is greater than the inner diameter of the first air outlet pipe 1. This not only makes it convenient to install the first air outlet pipe 1 to the fan output end through the sealing ring 51, but also does not affect the final smoke exhaust efficiency.

[0038] In one embodiment of the present invention, the installation assembly includes an installation plate 61 provided at the end of the second air outlet pipe 2 away from the limiting plate 32 and a second limiting step 62 provided on the inner wall of the first air outlet pipe 1 that can be snapped onto the output end of the fan. Thus, during installation, after the second limiting step 62 abuts against the edge of the output end of the fan, the second air outlet pipe 2 is externally fixed by the installation plate 61.

[0039] In one embodiment of this utility model, the mounting plate 61 is sleeved on the upper half of the second air outlet pipe 2. The four corners of the mounting plate 61 are respectively provided with a mounting groove 611, and the mounting groove 611 is a U-shaped mounting groove with the opening facing outward, which facilitates subsequent external installation and fixing.

[0040] The rectangular duct, which can be freely assembled and disassembled, uses limiting components and installation components to fit the second air outlet duct 2 onto the outside of the first air outlet duct 1, achieving an embedded structural connection. This not only ensures a neat and beautiful appearance for the entire unit, but also provides better structural strength and smoother smoke exhaust. Furthermore, by setting a sealing component, it features good sealing performance and low exhaust noise, effectively improving the product's performance.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rectangular air duct which can be freely assembled and disassembled, comprising a first air outlet duct (1) connected with an output end of a fan and a second air outlet duct (2) partially sleeved outside the first air outlet duct (1), characterized in that, Further comprising a limiting assembly for fixing the first air outlet pipe (1) and the second air outlet pipe (2), the limiting assembly comprises a first limiting step (31) arranged on the inner wall of the second air outlet pipe (2) and a limiting plate (32) arranged on the bottom of the outer wall of the first air outlet pipe (1), the outer sides of the first air outlet pipe (1) and the second air outlet pipe (2) are respectively provided with a plurality of cutting grooves (4), and the two ends of the first air outlet pipe (1) are respectively provided with sealing assemblies.

2. The rectangular duct according to claim 1, wherein: The sealing assembly comprises a sealing ring (51) arranged below the limiting plate (32) and capable of being sleeved on the output end of the fan and a sealing sponge arranged between the output end of the first air outlet pipe (1) and the inner wall of the second air outlet pipe (2).

3. The rectangular duct according to claim 2, wherein: The inner diameter of the second air outlet pipe (2) is greater than or equal to the inner diameter of the first air outlet pipe (1).

4. The rectangular duct according to claim 3, wherein: The inner diameter of the first air outlet pipe (1) is greater than or equal to the inner diameter of the output port of the fan.

5. The rectangular duct according to claim 2, wherein: The inner diameter of the sealing ring (51) is greater than the inner diameter of the first air outlet pipe (1).

6. The rectangular duct according to claim 1, wherein: Further comprising a mounting assembly, the mounting assembly comprises a mounting plate (61) arranged on one end of the second air outlet pipe (2) away from the limiting plate (32) and a second limiting step (62) arranged on the inner wall of the first air outlet pipe (1) and capable of being clamped on the output end of the fan.

7. The rectangular duct according to claim 6, wherein: The mounting plate (61) is sleeved on the second air outlet pipe (2), and the four corners of the mounting plate (61) are respectively provided with at least one mounting groove (611).

8. The rectangular duct according to claim 7, wherein: The mounting groove (611) is a U-shaped mounting groove with an opening outward.

9. The rectangular duct according to claim 6, wherein: The second limiting step (62) and the limiting plate (32) are respectively arranged on the inner and outer sides of the first air outlet pipe (1).

10. The rectangular duct according to claim 9, wherein: The two ends of the same side of the limiting plate (32) are respectively provided with positioning protrusions (321) for facilitating installation and distinction.

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