Reversing elbow with guide structure

By installing a silicone guide sleeve and a push rod at the elbow inspection end, the problem of aging and freezing of the sealing strip caused by water retention at the elbow inspection port is solved, achieving the effects of quiet operation and enhanced protection.

CN223868792UActive Publication Date: 2026-02-03YANGZHOU YUXIN PIPE IND CO LTD
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Patent Information

Application Number
CN202520562609.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-03
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

The existing elbow's inspection port is hollow, causing water to remain in the flow, which accelerates the aging of the sealing strip, leading to leakage problems, and it may even burst when it freezes.

Method used

A guide structure consisting of a silicone guide sleeve, a push rod, and a spring is installed at the inspection end of the elbow. The silicone guide sleeve and the inner wall of the elbow form a flow channel to guide the water flow and reduce water retention. At the same time, it provides clearance space when freezing occurs, and the push rod can remove impurities.

Benefits of technology

It effectively prevents the sealing strip from aging, reduces noise, improves the ease of use and quietness of the elbow, and prevents it from cracking due to icing, thus extending its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reversing elbow with a guide structure, which relates to the technical field of elbows, and comprises an elbow main body, the elbow main body is arranged at a 90-degree corner, an overhaul end is arranged at the corner of the elbow main body, the outer part of the overhaul end is in threaded connection with an overhaul cover, and the guide structure is arranged on the inner side of the overhaul cover. The guide structure comprises a silica gel guide sleeve, a push rod and a spring. By arranging the silica gel guide sleeve, in the use process of the elbow, due to the fact that the cambered surface of the silica gel guide sleeve and the inner wall of the elbow body define the flow channel, the cambered surface of the silica gel guide sleeve can guide flowing water, and the problem that a water source is reserved in the hollow position of the overhauling end of the elbow, so that a sealing rubber strip is aged quickly and leaks water is solved; and the silica gel guide sleeve is made of silica gel, so that noise generated by water flow impact can be reduced, and convenience is brought to the use of the elbow.
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Description

Technical Field

[0001] This utility model relates to the field of elbow technology, and in particular to a reversing elbow with a guiding structure. Background Technology

[0002] Water pipe reversing elbows are common piping system parts used to connect water pipes with different flow directions. Most elbows have a large bending angle (90 degrees is common), and the materials of elbows are mostly rigid materials such as plastic and metal.

[0003] To facilitate maintenance of elbows, inspection ports are usually installed at the corners of elbows. However, most existing elbow inspection ports are hollow. When water flows in from the elbow, water will remain in the hollow area. Over time, this will accelerate the aging of the sealing strip, resulting in water leakage at the inspection port due to the aging of the sealing strip, which brings inconvenience to the use of elbows.

[0004] Therefore, it is necessary to propose a reversing elbow with a guiding structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a reversing elbow with a guiding structure to solve the problem mentioned in the background art that most existing elbows have hollow access ports. When water flows in from the elbow, water will be retained in the hollow part. Over time, this will accelerate the aging rate of the sealing strip, resulting in water leakage at the access port due to the aging of the sealing strip.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reversing elbow with a guiding structure, comprising an elbow body, wherein the elbow body is arranged at a 90-degree angle, and an inspection end is provided at the angle of the elbow body;

[0007] The inspection end is externally threaded with an inspection cover. The inner side of the inspection cover is provided with a guide structure, which includes a silicone guide sleeve, a push rod, and a spring. The outer side of the silicone guide sleeve is fixedly connected to the inner side of the inspection cover. One end of the push rod is fixedly connected to the side of the inner cavity of the silicone guide sleeve, and the outer side of the push rod is slidably connected to the inside of the inspection cover. One end of the spring is fixedly connected to the side of the inner cavity of the silicone guide sleeve, and the other end of the spring is fixedly connected to the inner side of the inspection cover.

[0008] Preferably, the side of the silicone guide sleeve away from the inspection cover is arc-shaped, and the arc-shaped surface of the silicone guide sleeve and the inner wall of the elbow body form a flow channel.

[0009] Preferably, there are two springs, and the two springs are symmetrically arranged on both sides of the push rod.

[0010] Preferably, the push rod passes through and extends to the outside of the inspection cover, and a sealing gasket is provided between the inspection end and the inspection cover.

[0011] Preferably, the top of the elbow body is provided with a first connecting end, and the side of the elbow body away from the corner is provided with a second connecting end.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting up a silicone guide sleeve, the curved surface of the silicone guide sleeve and the inner wall of the elbow body form a flow channel during the use of the elbow. The curved surface of the silicone guide sleeve guides the water flow, avoiding water retention in the hollow part of the elbow inspection end, which would cause the sealing strip to age faster and leak. This brings convenience to the use of the elbow. In addition, since the silicone guide sleeve is made of silicone, it can reduce the noise generated by water flow impact, thereby improving the quietness of the elbow.

[0014] 2. By setting up a guiding structure, when the inside of the elbow freezes in winter, the internal cavity of the silicone guide sleeve will create clearance space, which can prevent the elbow from bursting due to the increased volume of water caused by freezing, thus improving the protection of the elbow; at the same time, the push rod can be pulled up and down, which will drive the arc surface of the silicone guide sleeve to move, causing impurities in the water accumulated or adhered to the arc surface of the silicone guide sleeve to fall off, thereby improving the service life of the silicone guide sleeve. Attached Figure Description

[0015] Figure 1 This is a front view of the reversing elbow with a guide structure according to this utility model.

[0016] Figure 2 This is a front sectional view of the reversing elbow with a guide structure according to this utility model.

[0017] Figure 3 In this utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0018] In the diagram: 1. Elbow body; 2. First connecting end; 3. Second connecting end; 4. Inspection end; 5. Inspection cover; 6. Silicone guide sleeve; 7. Push rod; 8. Spring. Detailed Implementation

[0019] 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.

[0020] This utility model provides, for example Figures 1-3 The diagram shows a reversing elbow with a guiding structure, comprising an elbow body 1, which is set at a 90-degree angle, and an inspection end 4 is provided at the corner of the elbow body 1. An inspection cover 5 is threadedly connected to the outside of the inspection end 4. A guiding structure is provided on the inside of the inspection cover 5, which includes a silicone guide sleeve 6, a push rod 7, and a spring 8. The outside of the silicone guide sleeve 6 is fixedly connected to the inside of the inspection cover 5. One end of the push rod 7 is fixedly connected to the side of the inner cavity of the silicone guide sleeve 6, and the outside of the push rod 7 is slidably connected to the inside of the inspection cover 5. One end of the spring 8 is fixedly connected to the side of the inner cavity of the silicone guide sleeve 6, and the other end of the spring 8 is fixedly connected to the inside of the inspection cover 5. The side of the silicone guide sleeve 6 away from the inspection cover 5 is arc-shaped, and the arc-shaped surface of the silicone guide sleeve 6 and the inner wall of the elbow body 1 enclose a flow channel. During the use of the elbow body 1, the curved surface of the silicone guide sleeve 6 forms a flow channel with the inner wall of the elbow body 1, which guides the water flow and avoids water retention in the hollow part of the inspection end 4 of the elbow body 1, which would cause the sealing strip to age faster and leak. This makes the use of the elbow body 1 more convenient. In addition, since the silicone guide sleeve 6 is made of silicone, it can reduce the noise generated by the water flow impact, thereby improving the quietness of the elbow body 1.

[0021] In addition, there are two springs 8, which are symmetrically arranged on both sides of the push rod 7. The push rod 7 passes through and extends to the outside of the inspection cover 5. A sealing gasket is provided between the inspection end 4 and the inspection cover 5. When the inside of the elbow body 1 freezes in winter, the cavity inside the silicone guide sleeve 6 will create clearance space, which can prevent the elbow body 1 from bursting due to the increased volume of water caused by freezing, thus improving the protection of the elbow body 1. At the same time, the push rod 7 can be pulled up and down, which will cause the arc surface of the silicone guide sleeve 6 to move. The spring 8 will cause the silicone guide sleeve 6 to return to its original position, causing impurities in the water that have accumulated or adhered to the arc surface of the silicone guide sleeve 6 to fall off, thus improving the service life of the silicone guide sleeve 6.

[0022] Finally, a first connecting end 2 is provided on the top of the elbow body 1, and a second connecting end 3 is provided on the side of the elbow body 1 away from the corner. The first connecting end 2 and the second connecting end 3 can be used to facilitate the installation and use of the elbow body 1.

[0023] Working principle: First, the first connecting end 2 and the second connecting end 3 facilitate the installation and use of the elbow body 1. Since the arc surface of the silicone guide sleeve 6 forms a flow channel with the inner wall of the elbow body 1, the arc surface of the silicone guide sleeve 6 guides the water flow, preventing water from remaining in the hollow part of the inspection end 4 of the elbow body 1, which could lead to accelerated aging of the sealing strip and leakage. This makes the use of the elbow body 1 more convenient. Furthermore, since the silicone guide sleeve 6 is made of silicone, it reduces noise generated by water flow impact, thus improving the quietness of the elbow body 1. As a result, when ice forms inside the elbow body 1 in winter, the internal cavity of the silicone guide sleeve 6 creates clearance space, preventing the elbow body 1 from bursting due to the increased volume of water caused by ice formation. This improves the protection of the elbow body 1. At the same time, the push rod 7 can be pulled up and down, causing the arc surface of the silicone guide sleeve 6 to move. The spring 8 will then cause the silicone guide sleeve 6 to reset, causing impurities in the water that have accumulated or adhered to the arc surface of the silicone guide sleeve 6 to fall off, thus extending the service life of the silicone guide sleeve 6.

Claims

1. A reversing elbow with a guiding structure, comprising an elbow body (1), characterized in that: The elbow body (1) is set at a 90-degree angle, and an inspection end (4) is provided at the corner of the elbow body (1); The inspection end (4) is externally threaded with an inspection cover (5). The inner side of the inspection cover (5) is provided with a guide structure, which includes a silicone guide sleeve (6), a push rod (7), and a spring (8). The outer side of the silicone guide sleeve (6) is fixedly connected to the inner side of the inspection cover (5). One end of the push rod (7) is fixedly connected to the side of the inner cavity of the silicone guide sleeve (6), and the outer side of the push rod (7) is slidably connected to the inside of the inspection cover (5). One end of the spring (8) is fixedly connected to the side of the inner cavity of the silicone guide sleeve (6), and the other end of the spring (8) is fixedly connected to the inner side of the inspection cover (5).

2. A reversing elbow with a guiding structure according to claim 1, characterized in that: The side of the silicone guide sleeve (6) away from the inspection cover (5) is arc-shaped, and the arc-shaped surface of the silicone guide sleeve (6) and the inner wall of the elbow body (1) form a flow channel.

3. A reversing elbow with a guiding structure according to claim 1, characterized in that: The number of springs (8) is two, and the two springs (8) are symmetrically arranged on both sides of the push rod (7).

4. A reversing elbow with a guiding structure according to claim 1, characterized in that: The push rod (7) passes through and extends to the outside of the inspection cover (5), and a sealing gasket is provided between the inspection end (4) and the inspection cover (5).

5. A reversing elbow with a guiding structure according to claim 1, characterized in that: The elbow body (1) is provided with a first connecting end (2) at the top, and a second connecting end (3) is provided on the side of the elbow body (1) away from the corner.