Corrugated pipe connecting fitting

Abstract

The utility model discloses a corrugated pipe connecting fitting which comprises a mounting pipe, an inner limiting circular ring, two outer limiting circular rings and two bucket-shaped embedded pipes are arranged in the mounting pipe, the inner limiting circular ring and the outer limiting circular rings are fixedly connected with the inner wall of the mounting pipe, and when a corrugated pipe is connected, the outer limiting circular rings are fixedly connected with the inner wall of the mounting pipe. The surfaces of the bucket-shaped embedded pipes make close contact with the inner wall of the corrugated pipe, the ends, with the largest diameters, of the two bucket-shaped embedded pipes are fixedly connected, the joint of the two bucket-shaped embedded pipes makes close contact with the inner wall of an inner limiting circular ring, and two sets of blades are fixedly connected to the interior of the mounting pipe. The ends, away from the inner wall of the mounting pipe, of the blades are fixedly connected with the surface of the bucket-shaped embedded pipe. Through the structure, the use convenience of the connecting fitting is improved, the connecting stability and the sealing effect of the corrugated pipe are improved, and the influence of deformation of the corrugated pipe on the connecting stability and the sealing performance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe connection technology, and in particular to a corrugated pipe connection accessory. Background Technology

[0002] Connecting two corrugated pipes requires the use of connecting fittings. However, commonly used connecting fittings have limited limitations on corrugated pipes, affecting the stability and sealing performance of the corrugated pipes after connection. This reduces the usability of corrugated pipe connecting fittings. The "Straight-Insertion Corrugated Pipe Connector" disclosed on the China Patent Network, with application number "201621140572.0", is a corrugated pipe connecting fitting that improves the connection stability of the corrugated pipes through the cooperation of an elastic compression ring and a meshing tooth. However, when the part of the corrugated pipe near the connecting fitting is accidentally deformed, the stability and sealing performance of the corrugated pipe connecting fitting are directly affected by the deformation. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a corrugated pipe connecting fitting. Through the dual connection method of embedded snap-fit ​​and storage, the convenience of using a corrugated pipe connecting fitting is improved, the connection stability and sealing performance of the corrugated pipe are increased when the connecting fitting is in use, and the influence of corrugated pipe deformation on connection stability and sealing performance is reduced.

[0004] This utility model also provides a corrugated pipe connecting accessory as described above, comprising: an installation pipe, wherein the installation pipe is provided with an inner limiting ring, two outer limiting rings, and two funnel-shaped embedded tubes inside, the inner limiting ring and the outer limiting ring are fixedly connected to the inner wall of the installation pipe, when connecting the corrugated pipe, the surface of the funnel-shaped embedded tube is in close contact with the inner wall of the corrugated pipe, the ends of the two funnel-shaped embedded tubes with the largest diameter are fixedly connected, and the connection point of the two funnel-shaped embedded tubes is in close contact with the inner wall of the inner limiting ring, and two sets of blades are fixedly connected inside the installation pipe, the ends of the blades away from the inner wall of the installation pipe are fixedly connected to the surface of the funnel-shaped embedded tubes.

[0005] According to the present invention, a corrugated pipe connecting fitting has two outer limiting rings located on the left and right sides of an inner limiting ring, respectively, and the space between the inner and outer limiting rings forms a receiving cavity. This improves the convenience of using the connecting fitting.

[0006] According to the present invention, a corrugated pipe connecting fitting has multiple through holes on its surface, which are distributed opposite to the inner limiting ring. This improves the convenience of adding auxiliary reinforcement items.

[0007] According to the present invention, a corrugated pipe connecting fitting has a reinforcing ring fixedly connected to the inner wall of the outer limiting ring. When connecting the corrugated pipe, the inner wall of the reinforcing ring is in close contact with the corrugated protrusions of the corrugated pipe. This improves the limiting effect of the connecting fitting on the corrugated pipe.

[0008] According to the present invention, a corrugated pipe connecting fitting includes a reinforcing ring made of plastic, with a funnel-shaped cross-section on its inner wall. When connecting the corrugated pipe, the reinforcing ring deforms towards the interior of the mounting pipe, thus limiting the deformation direction of the reinforcing ring.

[0009] Beneficial effects:

[0010] Compared with existing technologies, this corrugated pipe connector uses an installation tube and a funnel-shaped inner tube to achieve a storage and embedded snap-fit ​​connection structure, improving the convenience of using the connector. The storage cavity formed by the blade, inner limiting ring, and outer limiting ring stores the excess part of the corrugated pipe during the docking process, improving the sealing effect of the embedded snap-fit ​​structure. The through hole allows for the addition of additional items to reinforce the stability of the corrugated pipe docking. The reinforcing ring cooperates with the corrugated protrusions of the corrugated pipe, further increasing the stability of the corrugated pipe after docking with the connector. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0012] Figure 1 This is a right-side structural view of a corrugated pipe connecting fitting according to the present invention;

[0013] Figure 2 This is a left view of the structure of a corrugated pipe connecting fitting according to the present invention;

[0014] Figure 3 This is a cross-sectional view of a corrugated pipe connecting fitting according to the present invention.

[0015] Figure 4 This utility model relates to a corrugated pipe connecting fitting. Figure 3 Enlarged structural diagram at point B in the middle.

[0016] Legend:

[0017] 1. Installation tube; 2. Bucket-shaped embedded tube; 3. Blade; 4. Reinforcing ring; 5. Through hole; 6. Inner limiting ring; 7. Outer limiting ring. Detailed Implementation

[0018] 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 that people can intuitively and vividly understand each technical feature and the 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.

[0019] Reference Figure 1-4 This utility model provides a corrugated pipe connection fitting, which includes: an installation pipe 1, wherein the installation pipe 1 is provided with an inner limiting ring 6, two outer limiting rings 7, and two funnel-shaped embedded tubes 2. The inner limiting ring 6 and the outer limiting rings 7 are fixedly connected to the inner wall of the installation pipe 1. The two outer limiting rings 7 are respectively located on the left and right sides of the inner limiting ring 6. The space between the inner limiting ring 6 and the outer limiting rings 7 forms a receiving cavity, which is used to receive the part of the corrugated pipe that enters the installation pipe 1.

[0020] When connecting the bellows, the surface of the funnel-shaped inner tube 2 is in close contact with the inner wall of the bellows. The ends of the two funnel-shaped inner tubes 2 with the largest diameter are fixedly connected, and the connection point of the two funnel-shaped inner tubes 2 is in close contact with the inner wall of the inner limiting ring 6. The funnel-shaped inner tube 2 is embedded in the inside of the bellows and is in close contact with the inner wall of the bellows, thereby connecting the two bellows and improving the sealing performance after the bellows are connected by the method of tight contact.

[0021] Two sets of blades 3 are fixedly connected inside the mounting tube 1. The end of the blade 3 away from the inner wall of the mounting tube 1 is fixedly connected to the surface of the funnel-shaped inner tube 2. The blades 3 are used to cut the corrugated tube, ensuring that enough corrugated tube enters the interior of the mounting tube 1, and increasing the contact effect between the surface of the funnel-shaped inner tube 2 and the interior of the corrugated tube. The surface of the outer limiting ring 7 is provided with multiple through holes 5, which are distributed opposite to the inner limiting ring 6. The through holes 5 correspond to the part of the corrugated tube that is cut, and are used to provide additional reinforcement for the part of the corrugated tube that is cut, such as providing adhesion for the part of the corrugated tube that is cut and tightly attached to the surface of the inner limiting ring 6 through the through holes 5. Alternatively, the cut portion of the corrugated pipe can be fixed to the surface of the inner limiting ring 6 using screws. A reinforcing ring 4 is fixedly connected to the inner wall of the outer limiting ring 7. When connecting the corrugated pipe, the inner wall of the reinforcing ring 4 is in close contact with the corrugated protrusions of the corrugated pipe. The reinforcing ring 4 is made of plastic and has a funnel-shaped cross-section on its inner wall. When connecting the corrugated pipe, the reinforcing ring 4 deforms towards the inside of the mounting pipe 1. The reinforcing ring 4 blocks the corrugated protrusions on the surface of the corrugated pipe, further preventing the corrugated pipe from separating from the mounting pipe 1. The cross-section of the inner wall of the reinforcing ring 4 and the characteristic of directional deformation reduce the resistance during the process of pushing and adding the corrugated pipe.

[0022] Working principle: When using this connecting accessory, first take a corrugated tube and connect it to one end of the mounting tube 1. During the process of pushing the corrugated tube into the mounting tube 1, the reinforcing ring 4 deforms under force. The cross-section of the inner wall of the reinforcing ring 4 matches the arc edge of the corrugated protrusion in the corrugated tube, reducing the resistance of the reinforcing ring 4 to the corrugated tube during the pushing process. The front end of the corrugated tube is divided by the blade 3. As the corrugated tube is pushed and affected by the arc surface of the funnel-shaped inner tube 2, the divided part of the corrugated tube begins to fold and lie flat on the surface of the inner limiting ring 6. When the corrugated tube can no longer be pushed, it can be connected to the corrugated tube at the other end of the mounting tube 1. After the corrugated tube is added, adhesive can be added to the part of the corrugated tube that is cut and tightly attached to the surface of the inner limiting ring 6 through the through hole 5, or the part can be further fixed to the surface of the inner limiting ring 6 with screws.

[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A corrugated pipe connecting fitting, characterized in that, include: The installation tube (1) has an inner limiting ring (6), two outer limiting rings (7), and two funnel-shaped embedded tubes (2) inside. The inner limiting ring (6) and the outer limiting rings (7) are fixedly connected to the inner wall of the installation tube (1). When connecting the corrugated pipe, the surface of the funnel-shaped embedded tube (2) is in close contact with the inner wall of the corrugated pipe. The two funnel-shaped embedded tubes (2) are fixedly connected at the ends with the largest diameters, and the connection point of the two funnel-shaped embedded tubes (2) is in close contact with the inner wall of the inner limiting ring (6). Two sets of blades (3) are fixedly connected inside the installation tube (1). The end of the blade (3) away from the inner wall of the installation tube (1) is fixedly connected to the surface of the funnel-shaped embedded tube (2).

2. The corrugated pipe connecting fitting according to claim 1, characterized in that, The two outer limiting rings (7) are located on the left and right sides of the inner limiting ring (6), respectively, and the space between the inner limiting ring (6) and the outer limiting ring (7) forms a receiving cavity.

3. A corrugated pipe connecting fitting according to claim 1, characterized in that, The outer limiting ring (7) has a plurality of through holes (5) on its surface, and the through holes (5) are distributed opposite to the inner limiting ring (6).

4. A corrugated pipe connecting fitting according to claim 1, characterized in that, The inner wall of the outer limiting ring (7) is fixedly connected to a reinforcing ring (4). When connecting the corrugated pipe, the inner wall of the reinforcing ring (4) is in close contact with the corrugated protrusion of the corrugated pipe.

5. A corrugated pipe connecting fitting according to claim 4, characterized in that, The reinforcing ring (4) is made of plastic, and the inner wall of the reinforcing ring (4) is provided with a bucket-shaped cross-section. When connecting the corrugated pipe, the reinforcing ring (4) deforms towards the inside of the mounting pipe (1).

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