Anti-falling pipeline assembly

By designing first and second anti-detachment sections at the pipe connection and utilizing the combination of welding and inclined stepped grooves, the problem of easy pipe connection detachment is solved, achieving higher anti-detachment performance and stability.

CN223662875UActive Publication Date: 2025-12-12NINGBO HENGYUAN PRECISION VALVES TECH
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Patent Information

Application Number
CN202520166630.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-12-12
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing pipe connections are prone to detachment during construction due to being dragged by large equipment, resulting in insufficient anti-detachment performance.

Method used

An anti-detachment pipe assembly was designed, including a first connecting pipe and a second connecting pipe. The first connecting pipe has a first anti-detachment section and a second anti-detachment section, which are fixed by welding. The second connecting pipe has a second mating section that slides during mating. The movement of the mating section is restricted by the inclined anti-detachment stepped groove and the design of different diameters, so as to achieve bidirectional anti-detachment.

Benefits of technology

It improves the anti-detachment performance of pipe connections, ensuring that the connecting sections are not easily detached under normal use and stress conditions, thus enhancing the stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipe valves, in particular to an anti-falling pipeline assembly which comprises a first connecting pipe and a second connecting pipe which are in butt joint with each other, the first connecting pipe comprises a first pipeline body, one end of the first pipeline body is provided with a first butt joint section, and the first butt joint section is provided with a first anti-falling section and a second anti-falling section. The first anti-falling section is provided with a plurality of continuous anti-falling step grooves inclining towards the second anti-falling section, the second anti-falling section is arranged at the end of the first butt joint section, and the outer diameter of the second anti-falling section is larger than that of the first anti-falling section. After butt joint is completed, the two movement directions of the second butt joint section are limited by the first anti-disengaging section and the second anti-disengaging section correspondingly, and the butt joint firmness of the first connecting pipe and the second connecting pipe is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe valve, more specifically, it relates to a prevent falling pipeline assembly. BACKGROUND

[0002] Pipe valve technology is more and more mature in daily application, and is widely used in gas delivery, however, too long transportation line cannot be made of single pipeline, and needs to be connected by multiple pipelines to complete the arrangement of the total pipeline.

[0003] Usually, the connecting part of the pipeline is connected by interference insertion of the steel pipe and the plastic pipe section, a plurality of anti-falling stepped grooves with inclined direction away from the end part are arranged on the end part of the steel pipe, and then the end port of the plastic pipe end is forcibly extruded and inserted into the end part of the steel pipe.

[0004] The above-mentioned connection mode can guarantee the anti-falling ability under normal use, however, in many cases, the large equipment such as excavator or trailer is hooked in the construction process of the construction site, and the connecting part is easily pulled apart in the process of being dragged by the large equipment, causing the problem of falling off. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pipeline assembly with good anti-falling performance.

[0006] In order to achieve the above-mentioned purpose, the following technical means are adopted: a prevent falling pipeline assembly, comprising a first connecting pipe and a second connecting pipe which are connected to each other, the first connecting pipe comprises a first pipeline body, one end of the first pipeline body is provided with a first connecting section, the first connecting section is provided with a first anti-falling section and a second anti-falling section, the first anti-falling section is provided with a plurality of continuous anti-falling stepped grooves with inclined direction towards the second anti-falling section, the second anti-falling section is arranged at the end part of the first connecting section, and the outer diameter of the second anti-falling section is greater than that of the first anti-falling section.

[0007] Further optimization: the second anti-falling section is fixed to the first connecting section by welding.

[0008] Further optimization: the second anti-falling section is integrally arranged with the first connecting section.

[0009] Further optimization: a sealing groove is arranged at the part of the first anti-falling section close to the second anti-falling section, and a sealing ring is arranged in the sealing groove.

[0010] Further optimization: the second connecting pipe is provided with a second connecting section and a second pipeline body, the inner diameter of the second pipeline body is greater than that of the second connecting section, and the second connecting section is sleeved on the first connecting section.

[0011] The advantages of this invention compared to existing technologies are as follows: Because a first anti-detachment section and a second anti-detachment section are provided on the first connecting pipe, during the docking process, the second pipe body of the second connecting pipe is inserted from the first pipe body and then sequentially passes through the first docking section. The second docking section follows the second pipe body and is inserted accordingly. The second docking section slides through the first pipe body. When passing the first anti-detachment section, because the first anti-detachment section has multiple continuous anti-detachment stepped grooves with an inclined direction towards the second anti-detachment section, and the movement direction of the second docking section is consistent with the inclined direction of the anti-detachment stepped grooves, the first anti-detachment section does not generate significant resistance to the second docking section, allowing the second docking section to slide past with minimal force. Then, when the second docking section abuts against the second anti-detachment section, because the outer diameter of the second anti-detachment section is larger than the outer diameter of the first anti-detachment section, the second docking section will be restricted from further movement. Simultaneously, the first anti-detachment section also restricts the reverse movement of the second docking section, achieving bidirectional restriction on the second connecting pipe and improving its anti-detachment performance. Attached Figure Description

[0012] Figure 1 This is a half-sectional view of the first and second connecting pipes after they are joined together, as shown in the embodiment.

[0013] Figure 2 This is a half-sectional view of the second connecting pipe in the embodiment;

[0014] Figure 3 This is a half-sectional view of the first connecting pipe in the embodiment;

[0015] Figure 4 for Figure 3 Enlarged view of part A.

[0016] In the figure, 1. First connecting pipe; 11. First pipe body; 12. First mating section; 121. First anti-detachment section; 122. Second anti-detachment section; 13. Sealing groove; 2. Second connecting pipe; 21. Second pipe body; 22. Second mating section; 3. Sealing ring; 4. Weld. Detailed Implementation

[0017] The utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only descriptive and are not limiting of the scope of protection of this utility model.

[0018] Example

[0019] An anti-detachment pipe assembly, see attached. Figures 1-4 The first connecting pipe 1 is made of metal and the second connecting pipe 2 is made of plastic. When the two components are connected, the second pipe body 21 of the second connecting pipe 2 is inserted into the first pipe body 11 of the first connecting pipe 1, and then the first connecting section 12 and the second connecting section 22 are connected to realize the installation of the two components.

[0020] See appendix for further details. Figures 2-4 The second connecting pipe 2 has a second pipe body 21 with a large outer and inner diameter, and a second connecting section 22 with a small outer and inner diameter. The first connecting pipe 1 has a first pipe body 11 with a smooth outer diameter. The first pipe body 11 is integrally extended with a first connecting section 12. The first connecting section 12 is provided with a first anti-detachment section 121 with an inclined stepped groove. A second anti-detachment section 122 is fixed at the end of the first connecting section 12. The second anti-detachment section 122 is fixedly connected to the first connecting section 12 by a weld 4. At the same time, in order to improve the sealing performance of the first connecting pipe 1 and the second connecting pipe 2, a sealing groove 13 is provided between the second anti-detachment section 122 and the first anti-detachment section 121. A sealing ring 3 is provided in the sealing groove 13. Furthermore, the inner diameter of the second connecting section 22 must be greater than or equal to the outer diameter of the first pipe body 11 and less than the outer diameter of the first anti-detachment section 121.

[0021] During docking, the second pipe body 21 is inserted into the first pipe body 11 from one end in a sleeve manner, passing through the first pipe body 11 and the first docking section 12 in sequence. When the second docking section 22 moves from the first pipe body 11 to the first docking section 12, the inner diameter of the second docking section 22 first contacts the first anti-detachment section 121. Since the first anti-detachment section 121 has an inclined stepped groove with an inclined direction towards the second anti-detachment section 122, the second docking section 22 can be squeezed through the first anti-detachment section 121 with a small squeezing force. When the second docking section 22 abuts against the second anti-detachment section 122, it will be unable to continue moving. At this time, the second docking section 22 will also be unable to slide in the opposite direction due to the first anti-detachment section 121, and will be completely restricted to the first docking section 12.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An anti-detachment pipe assembly, comprising a first connecting pipe (1) and a second connecting pipe (2) that are mated together, characterized in that, The first connecting pipe (1) includes a first pipe body (11), one end of which is provided with a first docking section (12). The first docking section (12) is provided with a first anti-detachment section (121) and a second anti-detachment section (122). The first anti-detachment section (121) is provided with a plurality of continuous anti-detachment stepped grooves with an inclined direction toward the second anti-detachment section (122). The second anti-detachment section (122) is located at the end of the first docking section (12), and the outer diameter of the second anti-detachment section (122) is larger than the outer diameter of the first anti-detachment section (121).

2. The anti-detachment pipe assembly according to claim 1, characterized in that, The second anti-detachment section (122) is fixed to the first docking section (12) by welding.

3. The anti-detachment pipe assembly according to claim 1, characterized in that, The second anti-detachment section (122) is integrally formed with the first docking section (12).

4. The anti-detachment pipe assembly according to claim 1, characterized in that, A sealing groove (13) is provided in the first anti-detachment section (121) near the second anti-detachment section (122), and a sealing ring (3) is provided in the sealing groove (13).

5. The anti-detachment pipe assembly according to claim 1, characterized in that, The second connecting pipe (2) is provided with a second docking section (22) and a second pipe body (21). The inner diameter of the second pipe body (21) is larger than the inner diameter of the second docking section (22). The second docking section (22) is fitted onto the first docking section (12).