A snap-locking bend pipe connection assembly

Abstract

This utility model discloses a snap-fit ​​positioning bent pipe connection assembly, including a connecting pipe and a bent pipe fitting with a snap-fit ​​inner cylinder embedded inside. The inner side of the connecting pipe has several snap-fit ​​lugs integrally formed, and the outer end of the connecting pipe has an integrally formed external thread. A limiting protrusion ring is provided on the outer wall of the connecting pipe, near the external thread. Several sealing ring grooves are provided on the outer wall of the connecting pipe, and sealing rings are placed within the sealing ring grooves. The inner end of the connecting pipe is inserted into the bent pipe fitting, the snap-fit ​​lugs are engaged with the inner end edge of the snap-fit ​​inner cylinder, and the outer end face of the snap-fit ​​inner cylinder abuts against the upper limit of the limiting protrusion ring. Simultaneously, the sealing ring abuts against the inner wall of the snap-fit ​​inner pipe for sealing. This utility model has a reasonable structural design. The sealing is achieved through the abutment and sealing of the sealing rings within the sealing ring grooves, improving the convenience and stability of disassembly and assembly, facilitating maintenance operations, and preventing shaking or displacement after assembly. It also prevents wear on the sealing rings, improving its effectiveness in use.

Description

Technical Field

[0001] This utility model belongs to the technical field of bent pipe connection structure, specifically relating to a bent pipe connection component with snap-lock positioning. Background Technology

[0002] The connection between the bend and the connector is mainly fixed by external lock or screw. Although it can meet the general use requirements, the processing operation is relatively cumbersome. It requires punching holes and threading on the outside of the bend. Moreover, it is not easy to disassemble and maintain after assembly, which will affect its stability and effectiveness to a certain extent. In addition, the sealing ring at the connection is also prone to wear, affecting the sealing performance of the connection, which can easily cause the bend to shake or shift, making it difficult to meet market demands. Summary of the Invention

[0003] The purpose of this utility model is to provide a snap-lock positioning bent pipe connection component with a reasonable structural design and convenient assembly and disassembly.

[0004] The technical solution to achieve the purpose of this utility model is a snap-locking bent pipe connection assembly, including a connecting pipe and a bent pipe component with a snap-locking inner cylinder embedded inside. The inner side of the connecting pipe is integrally formed with a plurality of snap-locking lugs, and the outer end of the connecting pipe is integrally formed with an external thread.

[0005] A limiting protrusion is provided on the outer wall of the connecting pipe, and the limiting protrusion is located near the external thread.

[0006] The outer wall of the connecting pipe is provided with a plurality of sealing ring grooves, and a sealing ring is provided in the sealing ring grooves;

[0007] The inner end of the connecting pipe is inserted into the bent pipe fitting, the buckling lug is positioned on the inner end edge of the buckling inner cylinder, and the outer end face of the buckling inner cylinder abuts against the upper limit of the limiting protrusion ring, while the sealing ring abuts against the inner wall of the buckling inner tube for sealing.

[0008] A further preferred embodiment is that the connecting pipe has a transverse through-hole;

[0009] The transverse through hole is located in the gap between the adjacent sealing ring grooves.

[0010] A further preferred embodiment is that the outer diameter of the connecting pipe is 1-2 mm smaller than the inner diameter of the snap-fit ​​inner cylinder.

[0011] A further preferred embodiment is that: a plurality of axial ribs are integrally formed on the outer wall of the snap-fit ​​inner tube, and a protruding edge is integrally formed on the outer wall of the top end of the snap-fit ​​inner tube, and the outer surfaces of the protruding edge and the axial ribs are attached to the inner wall of the bent pipe fitting.

[0012] A further preferred embodiment is that the thickness of the protruding edge is the same as the thickness of the axial rib.

[0013] A further preferred embodiment is that the number of the latches is at least three.

[0014] This utility model has positive effects: The structure of this utility model is reasonably designed. When in use, it is only necessary to insert the connecting pipe into the bent pipe fitting and position it by snapping the buckle lug with the buckle inner cylinder. At the same time, the sealing ring in the sealing ring groove provides abutment and sealing, which improves the convenience and stability of disassembly and assembly, facilitates maintenance operations, and will not cause shaking or displacement after assembly, thus preventing wear of the sealing ring, improving the effectiveness of use, and making it highly applicable. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

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

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

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0019] Reference numerals: 1. Connecting pipe; 2. Snap-fit ​​inner cylinder; 3. Snap-fit ​​lug; 4. External thread; 5. Limiting protrusion ring; 6. Sealing ring groove; 7. Sealing ring; 8. Transverse through hole; 9. Axial rib; 10. Protrusion edge. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] See Figures 1 to 3As shown, a snap-fit ​​positioning bent pipe connection assembly includes a connecting pipe 1 and a bent pipe fitting with a snap-fit ​​inner cylinder 2 embedded inside. The inner side of the connecting pipe has several snap-fit ​​lugs 3 integrally formed, and the outer end of the connecting pipe has an external thread 4 integrally formed. In this embodiment, the bent pipe fitting has a conventional structure of the prior art. The outer diameter of the snap-fit ​​inner cylinder is the same as the inner diameter of the bent pipe fitting. Under external force, the snap-fit ​​inner cylinder snaps into the bent pipe fitting, and the positioning is achieved through the squeezing friction between the two, ensuring the stability of the assembly. The external thread is mainly used to connect external pipes. The design enhances the ease of connection. A limiting protrusion 5 is provided on the outer wall of the connecting pipe, near the external thread. Simultaneously, several sealing ring grooves 6 are provided on the outer wall of the connecting pipe, with sealing rings 7 disposed within each groove. During assembly, the inner end of the connecting pipe is inserted into the bent pipe fitting, the snap-fit ​​lug is engaged with the inner end edge of the snap-fit ​​inner tube, and the outer end face of the snap-fit ​​inner tube abuts against the upper limit of the limiting protrusion. Simultaneously, the sealing rings abut against the inner wall of the snap-fit ​​inner tube for sealing. Both the connecting pipe and the snap-fit ​​inner tube are plastic or metal structural components, and the number of sealing ring grooves can be adjusted as needed to meet sealing requirements.

[0022] Furthermore, in this embodiment, the connecting pipe is provided with a transverse through-hole 8; the transverse through-hole is located at the gap between adjacent sealing ring grooves. The transverse through-hole is mainly used to insert tools during assembly, improving the spiral efficiency between the connecting pipe and the outer pipe.

[0023] Furthermore, in this embodiment, the outer diameter of the connecting pipe is 1-2 mm smaller than the inner diameter of the snap-fit ​​inner cylinder.

[0024] To enhance overall strength, several axial ribs 9 are integrally formed on the outer wall of the snap-fit ​​inner tube, and a protruding edge 10 is integrally formed on the outer wall of the top end of the snap-fit ​​inner tube. The outer surfaces of the protruding edge and the axial ribs are attached to the inner wall of the bent pipe fitting. This increases the strength of the snap-fit ​​inner tube and also increases the friction with the bent pipe fitting during assembly, improving assembly stability and reliability.

[0025] In this embodiment, the thickness of the protruding edge is the same as the thickness of the axial rib. The number of the latching lugs is at least three.

[0026] This utility model has positive effects: The structure of this utility model is reasonably designed. When in use, it is only necessary to insert the connecting pipe into the bent pipe fitting and position it by snapping the buckle lug with the buckle inner cylinder. At the same time, the sealing ring in the sealing ring groove provides abutment and sealing, which improves the convenience and stability of disassembly and assembly, facilitates maintenance operations, and will not cause shaking or displacement after assembly, thus preventing wear of the sealing ring, improving the effectiveness of use, and making it highly applicable.

[0027] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A snap-fit ​​positioning bent pipe connection assembly, comprising a connecting pipe and a bent pipe fitting with a snap-fit ​​inner cylinder embedded inside, characterized in that: The inner side of the connecting tube is integrally formed with several snap-fit ​​lugs, and the outer end of the connecting tube is integrally formed with external threads. A limiting protrusion is provided on the outer wall of the connecting pipe, and the limiting protrusion is located near the external thread. The outer wall of the connecting pipe is provided with a plurality of sealing ring grooves, and a sealing ring is provided in the sealing ring grooves; The inner end of the connecting pipe is inserted into the bent pipe fitting, the buckling lug is positioned on the inner end edge of the buckling inner cylinder, and the outer end face of the buckling inner cylinder abuts against the upper limit of the limiting protrusion ring, while the sealing ring abuts against the inner wall of the buckling inner tube for sealing.

2. The snap-fit ​​positioning bend pipe connection assembly according to claim 1, characterized in that: The connecting pipe has a transverse through-hole; The transverse through hole is located in the gap between the adjacent sealing ring grooves.

3. The snap-fit ​​positioning bent pipe connection assembly according to claim 2, characterized in that: The outer diameter of the connecting pipe is 1-2 mm smaller than the inner diameter of the snap-fit ​​inner cylinder.

4. The snap-fit ​​positioning bend pipe connection assembly according to claim 2, characterized in that: The outer wall of the snap-fit ​​inner tube is integrally formed with several axial ribs, and the top outer wall of the snap-fit ​​inner tube is integrally formed with a protruding edge. The outer surfaces of the protruding edge and the axial ribs are attached to the inner wall of the bent pipe.

5. A snap-fit ​​positioning bent pipe connection assembly according to claim 4, characterized in that: The thickness of the protruding edge is the same as the thickness of the axial rib.

6. The snap-fit ​​positioning bend pipe connection assembly according to claim 1, characterized in that: The number of the buckle lugs is at least three.

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