Pipe joint for fresh air system and connecting structure of pipe joint

Abstract

The utility model relates to a kind of new air system accessory research and development design technical field, especially a pipe joint for new air system and the connecting structure of pipe joint, the utility model content includes: the pipe joint main body of hollow setting, including the connecting piece of hollow setting, first thread is arranged on the inner wall of the connecting piece, second thread corresponding with the first thread is arranged on the outer wall of the one end of the pipe joint main body, the connecting piece is cooperated on the pipe joint main body by the first thread and the second thread, the utility model has the advantages that: this structure is less prone to air leakage compared with the pipe joint for new air system on market, and with the increasing of torque, the contact between thread is more and more close, the pressure between connecting piece and pipe joint also increases, thereby realizing the effect of tightening, so that new air pipe is assembled in pipe joint, less prone to loosening, not easy to separate.

Description

Technical Field

[0001] This utility model relates to the field of research and development design technology of fresh air system accessories, and in particular to pipe joints and connection structures for fresh air systems. Background Technology

[0002] The duct connector used in the fresh air system is an important component that connects the main unit and the fresh air duct in the fresh air system. It plays a role in connecting, converting, distributing, and preventing air leakage. It is an indispensable part of the fresh air system.

[0003] However, the common duct connectors used in fresh air systems on the market use snap-fit ​​rings to connect with the fresh air ducts. When the fresh air duct is connected to the duct connector, the snap-fit ​​ring is mounted on the outer wall of the duct connector. The snap-fit ​​part of the snap-fit ​​ring is placed inside the duct connector through the opening and is snapped onto the outer wall of the fresh air duct. However, this structure is prone to air leakage due to the presence of the opening, and the duct connector and the fresh air duct are also prone to detachment. Therefore, further improvements to the existing technology are needed. Utility Model Content

[0004] The purpose of this invention is to provide a duct joint for a fresh air system designed to solve at least one technical problem in the background art.

[0005] The purpose of this utility model is to provide a connection structure for a pipe joint designed to solve at least one technical problem in the background art.

[0006] To achieve the above objectives, the present invention adopts the following solution: a pipe joint for a fresh air system, comprising a hollow pipe joint body and a hollow connector, wherein the inner wall of the connector is provided with a first thread, and the outer wall of one end of the pipe joint body is provided with a second thread corresponding to the first thread, and the connector is fitted onto the pipe joint body through the cooperation of the first thread and the second thread.

[0007] The pipe joint body has a protrusion extending outward from one end of the pipe joint body.

[0008] The inner wall of the pipe joint body is provided with a clamping part for clamping the fresh air pipe.

[0009] The protruding block includes a connecting part, one end of which is connected to the end of the pipe joint body.

[0010] The protruding block includes an abutting portion, one end of which is connected to the connecting portion and located at the end of the connecting portion away from the end connected to the main body of the pipe joint.

[0011] The abutting portion extends obliquely from the end of the connecting portion toward the central axis of the pipe joint body.

[0012] The connector is provided with an abutting surface corresponding to the abutting part, and the abutting part contacts the abutting surface.

[0013] The protrusions are arranged in one or more groups, with the groups of protrusions spaced apart and forming a deformation space between them.

[0014] The connector is designed to gradually taper from its bottom to its top.

[0015] The connection structure of the duct joint includes a fresh air duct and the duct joint for the fresh air system, wherein the fresh air duct is inserted into the body of the duct joint.

[0016] The advantages of this utility model are: it is simple to operate, and the ventilation pipe can be disassembled in the pipe joint by simply tightening or loosening the connecting parts. Compared with the pipe joints used in fresh air systems on the market, this structure is less prone to air leakage. As the torque increases, the contact between the threads becomes tighter and tighter, and the pressure between the connecting parts and the pipe joint also increases, thereby achieving a tightening effect. This makes it less likely for the fresh air pipe to loosen or detach when it is installed in the pipe joint. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a duct joint used in a fresh air system. Figure 1 ;

[0018] Figure 2 This is a structural diagram of a duct joint used in a fresh air system. Figure 2 ;

[0019] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4 This is a structural diagram of a duct joint used in a fresh air system. Figure 3 ;

[0021] Figure 5 This is a structural diagram of a duct joint used in a fresh air system. Figure 4 ;

[0022] Figure 6 This is a structural diagram of a duct joint used in a fresh air system. Figure 5 ;

[0023] Figure 7 This is a structural diagram of a duct joint used in a fresh air system. Figure 6 ;

[0024] Figure 8 This is a structural diagram of a duct joint used in a fresh air system. Figure 7 . Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does 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, and therefore should not be construed as a limitation of this utility model. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0027] In the description of this utility model, the term "several" means one or more, and "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number. The terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0028] Furthermore, unless otherwise defined, the technical and scientific terms used in this invention have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for the purpose of describing particular embodiments only and not for limiting the invention. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0029] Example 1: As Figure 1-8As shown, a duct joint for a fresh air system includes a hollow duct joint body 1 and a hollow connector 2. The connector 2 has a first thread 21 on its inner wall, and a second thread 11 corresponding to the first thread 21 is provided on the outer wall of one end of the duct joint body 1. The connector 2 is fitted onto the duct joint body 1 through the engagement of the first thread 21 and the second thread 11. The second thread 11 has one or more sets, with multiple sets of the second thread 11 respectively located at the ends of the duct joint body 1. This application is simple to use; the ventilation duct can be disassembled within the duct joint simply by tightening or loosening the connector. Compared to commercially available duct joints for fresh air systems, this structure is less prone to air leakage. Furthermore, as the torque increases, the contact between the threads becomes increasingly tight, and the pressure between the connector and the duct joint also increases, achieving a tightening effect. This makes it less likely for the fresh air duct to loosen or detach when assembled within the duct joint.

[0030] The pipe connector body 1 has a protruding block 12 extending outward from one end of the pipe connector body 1. The protruding block 12 includes a connecting part 121, one end of which is connected to the end of the pipe connector body 1. The protruding block 12 also includes an abutting part 122, one end of which is connected to the connecting part 121 and located away from the end of the connecting part 121 that is connected to the pipe connector body 1. The connector 2 has an abutting surface 22 corresponding to the abutting part 122. The abutting part 122 contacts the abutting surface 22. The cooperation between the abutting part and the abutting surface helps to tighten the pipe connector body, making it less likely for the fresh air duct to detach when it is inserted into the pipe connector body.

[0031] The abutting part 122 extends obliquely from the end of the connecting part 121 toward the central axis of the pipe joint body 1, which serves to tighten the pipe joint body, making it less likely for the fresh air duct to detach from the pipe joint body when it is connected.

[0032] The protrusion 12 has one or more sets, and the multiple sets of protrusion 12 are arranged at intervals and form a deformation space 120 between the multiple sets of protrusion 12, so that the pipe joint body can be deformed and tightened, making it less likely for the fresh air pipe to detach from the pipe joint body when it is connected.

[0033] The connector 2 is designed to gradually contract from the bottom to the top, which tightens the main body of the pipe joint, making it less likely for the fresh air duct to detach from the main body of the pipe joint when it is connected to it.

[0034] The inner wall of the pipe joint body 1 is provided with a clamping part 123 for clamping the fresh air duct. The clamping part 123 is provided on the abutment part 122 and is located on the side of the abutment part 122 away from the abutment surface 22. When the fresh air duct is connected to the pipe joint body, the clamping part is clamped on the outer wall of the fresh air duct, making it less likely for the fresh air duct to detach from the pipe joint body.

[0035] Example 2: Figure 1-3 As shown, the connection structure of the pipe joint includes a fresh air duct and the pipe joint for the fresh air system. The fresh air duct is inserted into the body of the pipe joint. The outer wall of the fresh air duct is provided with a snap-fit ​​groove corresponding to the snap-fit ​​part 123. The snap-fit ​​part 123 is placed in the snap-fit ​​groove. This application is simple to operate. The ventilation duct can be disassembled in the pipe joint by simply tightening or loosening the connector. Compared with the pipe joints for fresh air systems on the market, this structure is less prone to air leakage. As the torque increases, the contact between the threads becomes tighter and tighter, and the pressure between the connector and the pipe joint also increases, thereby achieving a tightening effect. This makes it less likely for the fresh air duct to loosen or detach when assembled in the pipe joint.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A pipe joint for a fresh air system comprising a hollowly arranged pipe joint body, characterized in that: The connector includes a hollow component with a first thread on its inner wall and a second thread corresponding to the first thread on the outer wall of one end of the pipe connector body. The connector is fitted onto the pipe connector body through the engagement of the first thread and the second thread.

2. The pipe joint for a fresh air system according to claim 1, characterized in that: The pipe joint body has a protrusion extending outward from one end of the pipe joint body.

3. The duct joint for a fresh air system of claim 2, wherein: The protruding block includes a connecting portion, one end of which is connected to the end of the pipe joint body.

4. The duct joint for a fresh air system according to claim 3, characterized in that: The protrusion includes an abutment portion, one end of which is connected to the connecting portion and located at the end of the connecting portion away from the end connected to the main body of the pipe joint.

5. The duct joint for a fresh air system of claim 4, wherein: The abutting portion extends obliquely from the end of the connecting portion toward the central axis of the pipe joint body.

6. The pipe joint for a fresh air system of claim 4, wherein: The connector is provided with an abutting surface corresponding to the abutting part, and the abutting part contacts the abutting surface.

7. The duct joint for a fresh air system according to claim 1, characterized in that: The inner wall of the pipe joint body is provided with a clamping part for clamping the fresh air pipe.

8. The duct joint for a fresh air system according to claim 2, characterized in that: The protrusions are in one or more groups, with the groups of protrusions spaced apart and forming a deformation space between them.

9. The duct joint for a fresh air system according to claim 1, characterized in that: The connector is designed to gradually taper from its bottom to its top.

10. A connection structure for a duct joint, comprising a fresh air duct and a duct joint for a fresh air system as described in any one of claims 1-9, characterized in that: The fresh air duct is inserted into the main body of the duct joint.

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