A fixing structure of an in-pipe connector and a cleaning connection pipe

Abstract

The utility model provides a kind of fixing structure of pipe inner connecting piece, including connecting pipe and the connecting piece being set in connecting pipe: the end surface of the connecting piece is provided with step portion along its central axis; mounting portion for installing connecting piece is arranged in the inside of the connecting pipe, and the inside of the connecting pipe is also provided with mounting groove; the connecting piece is placed in mounting portion, and external force is applied, and the step portion is folded outward and embedded in mounting groove. The mounting portion and the mounting groove are sequentially arranged inward from the opening of the connecting pipe; the utility model also provides a kind of cleaning connecting pipe; the utility model is installed connecting pipe on water pipe, and connecting piece is arranged in connecting pipe, and the water flow that passes through the inside of connecting pipe forms similar spiral shape, which can play the effect of flushing the inner wall of water pipe, and can avoid that part of pollutants adhere.

Description

Technical Field

[0001] This utility model relates to the technical field of water pipe connection fittings, and in particular to a fixing structure for an internal pipe connecting piece and a cleaning connection pipe. Background Technology

[0002] Over time, household water pipes can accumulate scale, rust, bacteria, and biofilm on their inner walls. This can lead to the following problems: First, the accumulation of these pollutants can become a breeding ground for bacteria; Secondly, the accumulation of pollutants leads to blockages inside water pipes and poor water supply. In water pipes that have been in use for many years, rust will be generated due to the oxidation reaction of water flowing inside the pipes. At the same time, silt that may enter during pipe installation, damage repair, etc. will also be deposited inside the pipes. These deposits will gradually reduce the inner diameter of the pipes, resulting in insufficient water flow and poor water supply.

[0003] In view of this, the inventors have specifically designed a fixing structure for the inner connecting piece and a cleaning connecting pipe, which leads to this invention. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a fixing structure for an internal connecting piece. By installing a connecting pipe on a tap water pipe and setting a connecting piece inside the connecting pipe with holes in the connecting piece, the water flow through the inside of the connecting pipe forms a spiral-like shape, which can effectively flush the inner wall of the tap water pipe, prevent some pollutants from adhering, and overcome the problems that may arise from long-term use of existing tap water pipes.

[0005] This utility model also proposes a cleaning connection tube.

[0006] The present invention provides a fixing structure for an internal connecting piece, comprising a connecting pipe and a connecting piece disposed inside the connecting pipe: One end face of the connecting piece is provided with a stepped portion along its central axis; The inner side of the connecting pipe is provided with a mounting part for mounting the connecting piece, and the inner side of the connecting pipe is also provided with a mounting groove; The connecting piece is placed inside the mounting part and an external force is applied, causing the stepped part to fold outward and embed into the mounting groove.

[0007] The mounting section and mounting groove are arranged sequentially from the opening of the connecting pipe inwards.

[0008] In some embodiments of this utility model, an inclined surface is provided on the inner side of the step portion, so that when pressure is applied, the step portion can be folded outward to form a fixed portion.

[0009] In some embodiments of this utility model, the stepped portion is ring-shaped, and the corresponding mounting groove is also ring-shaped.

[0010] In some embodiments of this utility model, the mounting part is arc-shaped and at least two are provided, and the mounting groove is annular.

[0011] In some embodiments of this utility model, at least two water passage holes are provided on the connecting piece.

[0012] In some embodiments of this utility model, three water passage holes are provided.

[0013] In some embodiments of this utility model, the outer wall of the connecting hanger has a first section and a second section, wherein the first section is cylindrical and the second section is frustoconical, and the outer diameter of the second section gradually decreases away from the first section.

[0014] In some embodiments of this utility model, the outer diameter of the first segment is equal to the maximum outer diameter of the second segment, and the minimum outer diameter of the second segment is less than the inner diameter of the mounting part, while the maximum outer diameter can be slightly larger than the inner diameter of the mounting part. The angle of the cross-section of the second segment is α, which can specifically be 1°.

[0015] The present invention provides a cleaning connecting pipe, comprising a connecting pipe and a connecting piece, wherein the connecting piece and the connecting pipe are fixed by an internal connecting piece fixing structure.

[0016] In some embodiments of this utility model, at least two connecting pieces are provided inside the connecting pipe, and the water passage holes between adjacent connecting pieces are staggered.

[0017] In some embodiments of this utility model, an external thread is provided on the outer side of one end of the connecting pipe, and an internal thread is provided on the inner side of the other end.

[0018] In some embodiments of this utility model, the cleaning connection pipe is installed on the water pipe so that the water flowing through the cleaning connection pipe is spiral-shaped, thereby impacting the inner wall of the water pipe and achieving a cleaning effect.

[0019] This invention involves installing a connecting pipe on a tap water pipe, with a connecting piece inside the connecting pipe and holes in the connecting piece. This causes the water flowing through the connecting pipe to form a spiral shape, which can effectively flush the inner wall of the tap water pipe and prevent some pollutants from adhering. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0021] in: Figure 1 This is a schematic diagram of the fixing structure of this utility model; Figure 2 This is a schematic diagram of the connecting pipe of this utility model; Figure 3 This is a utility model Figure 2 A magnified view of a portion of the image; Figure 4 This is a cross-sectional schematic diagram of the connecting rod of this utility model; Figure 5 This is a schematic diagram of the structure of the connecting piece of this utility model; Figure 6 This is a cross-sectional schematic diagram of the connecting piece of this utility model; Figure 7 This is an exploded view of the cleaning connection pipe of this utility model; Figure 8 This is a cross-sectional schematic diagram of the cleaning connection pipe of this utility model; Figure 9 This is a utility model Figure 8 A magnified view of a portion of the image.

[0022] Label Explanation: 10. Connecting pipe; 11. Mounting part; 12. Mounting groove; 13. External thread part; 14. Internal thread part; 20. Connecting piece; 201. First section; 202. Second section; 21-1. Step part; 21-2. Fixing part; 22. Inclined surface; 23. Water passage hole. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0024] Please see Figures 1 to 6This is a fixing structure for an internal connecting piece 20 in Embodiment 1 of the present invention, comprising a connecting pipe 10 and a connecting piece 20 disposed within the connecting pipe 10: a stepped portion 21-1 is provided on one end face of the connecting piece 20 along its central axis; a mounting portion 11 for mounting the connecting piece 20 is provided on the inner side of the connecting pipe 10, and a mounting groove 12 is also provided on the inner side of the connecting pipe 10; the connecting piece 20 is placed in the mounting portion 11, and an external force is applied, causing the stepped portion 21-1 to fold outward and embed into the mounting groove 12 (i.e., the stepped portion 21-1 is turned outward or bent outward). The mounting portion 11 and the mounting groove 12 are arranged sequentially from the opening of the connecting pipe 10 inward. Existing fixed structures may use welding, which involves placing the connecting piece 20 inside the connecting tube 10 and then spot welding it. This method is costly, requires specialized personnel for welding, and requires polishing or grinding of the weld after welding. Furthermore, smaller companies may need to outsource welding to other factories, resulting in high transportation costs. In contrast, the external force of this invention can be achieved through stamping, which requires less skill from operators and most companies can perform stamping themselves, thus significantly reducing production costs.

[0025] Please refer to the details. Figure 5 , 6 An inclined surface 22 is provided on the inner side of the step portion 21-1, so that when pressure is applied, the step portion 21-1 can be folded outward to form the fixing portion 21-2. The step portion 21-1 is annular, and the corresponding mounting groove 12 is also annular. Alternatively, the mounting portion 11 is arc-shaped, and at least two are provided, and the mounting groove 12 is annular. When the mounting portion 11 is arc-shaped, it can be understood as part of the annular mounting portion 11. At least two water passage holes 23 are provided on the connecting piece 20, preferably three water passage holes 23. When the connecting piece 20 has two, the water passage holes 23 of the two connecting pieces 20 are staggered to form a spiral water flow.

[0026] Please refer to the details. Figure 5 The outer wall of the connecting piece 20 has a first section 201 and a second section 202. The first section 201 is cylindrical, and the second section 202 is frustoconical, with the outer diameter of the second section 202 gradually decreasing away from the first section 201. The second section 202 includes a stepped portion 21-1. The outer diameter of the first section 201 is equal to the maximum outer diameter of the second section 202, and the minimum outer diameter of the second section 202 is smaller than the inner diameter of the mounting portion 11. The maximum outer diameter can be slightly larger than the inner diameter of the mounting portion 11, so that the second section 202 can be better embedded in the mounting portion 11. The first section 201 and the mounting portion 11 can be an interference fit, which improves the sealing between the connecting piece 20 and the inner side of the connecting pipe 10. Furthermore, the angle of the cross-section of the second section 202 is α, specifically 1°.

[0027] Please refer to the details. Figure 4Further configuration: A platform is set inside the connecting pipe 10, the step portion 21-1 first abuts against the platform, and then continuous pressure is applied, so that the step portion 21-1 moves outward and is embedded in the mounting groove 12. Example 2

[0028] Please see Figures 1 to 9 This is a cleaning connecting pipe 10 as an embodiment 2 of the present invention, comprising a connecting pipe 10 and a connecting piece 20. The connecting piece 20 and the connecting pipe 10 are fixed by an internal fixing structure, wherein one end face of the connecting piece 20 is provided with a stepped portion 21-1 along its central axis; an mounting portion 11 for mounting the connecting piece 20 is provided inside the connecting pipe 10, and an mounting groove 12 is also provided inside the connecting pipe 10; the connecting piece 20 is placed in the mounting portion 11, and an external force is applied, causing the stepped portion 21-1 to fold outward and embed into the mounting groove 12. The mounting portion 11 and the mounting groove 12 are arranged sequentially from the opening of the connecting pipe 10 inward.

[0029] An inclined surface 22 is provided on the inner side of the step portion 21-1, so that when pressure is applied, the step portion 21-1 can be folded outward to form the fixing portion 21-2.

[0030] The step portion 21-1 is ring-shaped, and the corresponding mounting groove 12 is also ring-shaped. Alternatively, the mounting portion 11 is arc-shaped, and at least two are provided, with the mounting groove 12 being ring-shaped. When the mounting portion 11 is arc-shaped, it can be understood as part of the ring-shaped mounting portion 11.

[0031] The connecting piece 20 is provided with at least two water passage holes 23, preferably three water passage holes 23. When the connecting piece 20 has two holes, the water passage holes 23 of the two connecting pieces 20 are staggered to form a spiral water flow. The spiral continuous flushing of the inner wall of the tap water pipe can prevent the accumulation of pollutants.

[0032] The outer wall of the connecting bracket has a first section 201 and a second section 202. The first section 201 is cylindrical, and the second section 202 is frustoconical, with the outer diameter of the second section 202 gradually decreasing away from the first section 201. The second section 202 includes a stepped portion 21-1. Therefore, the outer diameter of the first section 201 is equal to the maximum outer diameter of the second section 202, and the minimum outer diameter of the second section 202 is smaller than the inner diameter of the mounting portion 11. The maximum outer diameter can be slightly larger than the inner diameter of the mounting portion 11, so that the second section 202 can be better embedded within the mounting portion 11. The first section 201 and the mounting portion 11 can have an interference fit, resulting in better sealing between the connecting piece 20 and the inner side of the connecting pipe 10. Furthermore, the angle of the cross-section of the second section 202 is α, specifically 1°.

[0033] Please refer to the details. Figure 8 , 9The connecting pipe 10 has at least two connecting pieces 20 inside, and the water passage holes 23 between adjacent connecting pieces 20 are staggered. One end of the connecting pipe 10 has an external thread 13 on the outside and an internal thread 14 on the inside of the other end, so as to facilitate its connection to the tap water pipe. The number of connections can be selected as needed. For example, multiple connections can be set at equal intervals to achieve better cleaning effect.

[0034] The cleaning connection pipe 10 of this utility model is installed on the water pipe so that the water flowing through the cleaning connection pipe 10 is spiral, thereby impacting the inner wall of the water pipe and achieving a cleaning effect.

[0035] In summary, this utility model, by installing a connecting pipe on a tap water pipe and setting a connecting piece inside the connecting pipe with holes in the connecting piece, allows the water flowing through the connecting pipe to form a spiral shape, which can effectively flush the inner wall of the tap water pipe and prevent some pollutants from adhering.

[0036] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fixing structure for an internal connecting piece of a tube, characterized in that, Includes a connecting pipe (10) and a connecting piece (20) disposed within the connecting pipe (10): One end face of the connecting piece (20) is provided with a stepped portion (21-1) along its central axis; The inner side of the connecting pipe (10) is provided with a mounting part (11) for mounting the connecting piece (20), and the inner side of the connecting pipe (10) is also provided with a mounting groove (12). The connecting piece (20) is placed in the mounting part (11) and an external force is applied, and the stepped part (21-1) is folded outward and embedded in the mounting groove (12); The mounting part (11) and the mounting groove (12) are arranged sequentially from the opening of the connecting pipe (10) inward.

2. The structure for fixing the in-line connector of claim 1, wherein An inclined surface (22) is provided on the inner side of the stepped portion (21-1).

3. The structure for fixing the in-line connector of claim 1, wherein The stepped portion (21-1) is ring-shaped, and the corresponding mounting groove (12) is also ring-shaped.

4. The structure for fixing the in-line connector of claim 1, wherein The mounting part (11) is arc-shaped and at least two are provided, and the mounting groove (12) is ring-shaped.

5. The structure for fixing the in-line connector of claim 1, wherein At least two water passage holes (23) are provided on the connecting piece (20).

6. The structure for fixing the in-line connector of claim 5, wherein Three water passage holes (23) are provided.

7. The structure for fixing the in-line connector of claim 1, wherein The outer wall of the connecting hanger has a first section (201) and a second section (202), wherein the first section (201) is cylindrical and the second section (202) is frustoconical, and the outer diameter of the second section (202) gradually decreases away from the first section (201).

8. A cleaning connecting pipe, characterized in that, It includes a connecting pipe (10) and a connecting piece (20), wherein the connecting piece (20) and the connecting pipe (10) are fixed by a pipe connecting piece fixing structure as described in any one of claims 1-7.

9. A cleaning connecting pipe according to claim 8, characterized in that, The connecting pipe (10) is provided with at least two connecting pieces (20), and the water passage holes (23) between two adjacent connecting pieces (20) are staggered.

10. The cleanout coupling of claim 8, wherein, The connecting pipe (10) has an external thread (13) on the outer side of one end and an internal thread (14) on the inner side of the other end.

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