High-air-tightness air pipe

Abstract

The utility model belongs to the technical field of air pipes, and particularly relates to a high-air-tightness air pipe which comprises a main pipe connected with a base frame, an insertion pipe connected with the outer side of the main pipe in an integrally-formed mode, an outer thread arranged on the outer side of the front end of the insertion pipe, an auxiliary pipe connected with the main pipe, and an insertion groove arranged in the auxiliary pipe and matched with the insertion pipe. The outer side of the insertion pipe is connected with multiple sets of rubber sealing rings, the multiple sets of rubber sealing rings are linearly arranged at equal intervals from left to right along the outer side of the insertion pipe, multiple sets of sealing grooves are formed in the insertion groove, and the multiple sets of sealing grooves and the rubber sealing rings are arranged in a one-to-one correspondence mode. The main pipe and the auxiliary pipe are connected in a screwed fit mode, gaps between the connecting positions of the main pipe and the auxiliary pipe can be reduced, the sealing performance is good, air leakage and air leakage can be avoided, the rubber sealing ring is matched with the sealing groove, and on the basis of threaded sealing, the connecting sealing performance between the main pipe and the auxiliary pipe is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to a high-air-tightness air duct. Background Art

[0002] Ducts are piping systems used for air transportation and distribution. There are two types: composite ducts and inorganic ducts. Durkduct ducts are the most representative composite ducts.

[0003] Traditional air ducts are mostly butt-jointed air ducts, which use U-shaped clamps to connect adjacent air ducts. There is a gap between the joint of the air duct and the clamp. Although the adjacent air ducts are usually connected by applying adhesive at the joint and solidifying it, this method can ensure a certain degree of tightness and airtightness. However, after excessive wind pressure or long-term use, the adhesive is prone to cracking, and the air duct is prone to air leakage, which can easily cause air leakage and deflation. The occurrence of this situation is likely to cause air pollution in the surrounding area of ​​the leakage environment, and will also affect the work, life, and entertainment of the surrounding people. For this reason, a high-airtightness air duct is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a highly airtight air duct that connects the main pipe and the auxiliary pipe by screwing the external and internal threads. The screw-fit connection method can reduce the gap between the main and auxiliary pipes, improve the sealing performance, and avoid air leakage and deflation. In addition, the rubber sealing ring cooperates with the sealing groove to further improve the sealing performance of the connection between the main pipe and the auxiliary pipe on the basis of the threaded sealing. In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A high airtightness air duct, comprising:

[0007] As a main pipe connected to the base frame, the outer side of the main pipe is integrally connected with a cannula, and the outer side of the front end of the cannula is provided with an external thread;

[0008] The auxiliary pipe is connected to the main pipe, and a slot adapted to the insert pipe is provided in the auxiliary pipe, and an internal thread is provided in the slot to be screwed with the external thread;

[0009] The outer side of the cannula is connected to a plurality of rubber sealing rings, which are arranged linearly and equidistantly from left to right along the outer side of the cannula;

[0010] A plurality of sealing grooves are provided in the slot, and the plurality of sealing grooves are arranged in one-to-one correspondence with the rubber sealing rings.

[0011] As a preferred solution of the high airtightness air duct described in the utility model, the outer side of the main pipe is symmetrically integrally formed with multiple groups of connecting seats 1, and the outer side of the auxiliary pipe is provided with a connecting seat 2 corresponding to the connecting seat 1.

[0012] As an optimal solution for a high-airtightness air duct described in the utility model, wherein: threaded hole one is opened on the connecting seat one, threaded hole two is opened on the connecting seat two, threaded hole one and threaded hole two are arranged correspondingly, and are screwed together with external bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The main pipe and the auxiliary pipe are connected by screwing together the external and internal threads. The screw-fit connection method can reduce the gap between the connection of the main pipe and the auxiliary pipe, and has better sealing performance, which can avoid air leakage and deflation. In addition, the rubber sealing ring is matched with the sealing groove to further improve the connection sealing between the main pipe and the auxiliary pipe on the basis of thread sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the subpackaging structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure.

[0019] In the figure: 100 main pipe, 110 insert pipe, 111 external thread, 112 rubber sealing ring, 120 connecting seat 1, 121 threaded hole 1, 200 auxiliary pipe, 210 slot, 211 internal thread, 212 sealing groove, 220 connecting seat 2, 221 threaded hole 2. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides a high airtightness air duct, please refer to Figure 1-3 , including a main pipe 100 and a sub-pipe 200;

[0025] Please continue reading Figure 1-3 , as a main pipe 100 connected to the base frame, the outer side of the main pipe 100 is integrally connected with a cannula 110, and the outer side of the front end of the cannula 110 is provided with an external thread 111;

[0026] The outer side of the cannula 110 is connected to a plurality of rubber sealing rings 112 , which are arranged linearly and equidistantly from left to right along the outer side of the cannula 110 ;

[0027] Please continue reading Figure 1-3 The auxiliary pipe 200 is connected to the main pipe 100, and a slot 210 adapted to the cannula 110 is provided in the auxiliary pipe 200, and an internal thread 211 threadedly matched with the external thread 111 is provided in the slot 210;

[0028] The main pipe 100 and the auxiliary pipe 200 are connected by screwing the external thread 111 and the internal thread 211. The screw-fit connection method can reduce the gap between the main pipe 100 and the auxiliary pipe 200, improve the sealing performance, and avoid air leakage and deflation. In addition, the rubber sealing ring 112 cooperates with the sealing groove 212 to further improve the sealing performance of the connection between the main pipe 100 and the auxiliary pipe 200 on the basis of thread sealing.

[0029] The slot 210 is provided with a plurality of sealing grooves 212 , and the plurality of sealing grooves 212 are arranged in a one-to-one correspondence with the rubber sealing rings 112 ;

[0030] Furthermore, the outer side of the main pipe 100 is symmetrically integrally formed with multiple groups of connecting seats 120, and the outer side of the secondary pipe 200 is provided with a connecting seat 220 corresponding to the connecting seat 120. The connecting seat 120 is provided with a threaded hole 121, and the connecting seat 220 is provided with a threaded hole 221. The threaded hole 121 and the threaded hole 221 are correspondingly arranged and screwed together with external bolts.

[0031] Working principle: When in use, the utility model connects the main pipe 100 and the auxiliary pipe 200 by screwing the external thread 111 and the internal thread 211. The screw-fit connection method can reduce the gap between the connection between the main pipe 100 and the auxiliary pipe 200, and has good sealing performance, which can avoid air leakage and deflation. In addition, the rubber sealing ring 112 cooperates with the sealing groove 212 to further improve the connection sealing between the main pipe 100 and the auxiliary pipe 200 on the basis of thread sealing.

[0032] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A high airtightness air duct, characterized in that: include: A main pipe (100) connected to the base frame, the outer side of the main pipe (100) is integrally connected with a cannula (110), and the outer side of the front end of the cannula (110) is provided with an external thread (111); The auxiliary pipe (200) is connected to the main pipe (100), and a slot (210) adapted to the insert pipe (110) is provided in the auxiliary pipe (200), and an internal thread (211) threadedly engaged with the external thread (111) is provided in the slot (210); The outer side of the cannula (110) is connected to a plurality of rubber sealing rings (112), and the plurality of rubber sealing rings (112) are arranged linearly and equidistantly from left to right along the outer side of the cannula (110); A plurality of sealing grooves (212) are provided in the slot (210), and the plurality of sealing grooves (212) are arranged in a one-to-one correspondence with the rubber sealing rings (112).

2. The high airtightness air duct according to claim 1, characterized in that: The outer side of the main pipe (100) is symmetrically integrally formed and connected with multiple groups of connecting seats (120), and the outer side of the auxiliary pipe (200) is provided with a connecting seat (220) corresponding to the connecting seat (120).

3. The high airtightness air duct according to claim 2, characterized in that: The connecting seat 1 (120) is provided with a threaded hole 1 (121), and the connecting seat 2 (220) is provided with a threaded hole 2 (221). The threaded hole 1 (121) and the threaded hole 2 (221) are arranged correspondingly and are screwed together with the external bolts.

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