Self-locking type bearing pipeline

Abstract

The invention provides a self-locking type bearing pipeline, and belongs to the technical field of constructional engineering, the self-locking type bearing pipeline comprises a bearing pipeline and a bearing plug, the bearing plug can be inserted into the bearing pipeline, and the bearing pipeline is sequentially provided with a first pipeline, an inclined transition section, a second pipeline and a diameter expansion mounting section in the insertion direction; a limiting step is arranged at the junction of the expanding mounting section and the second pipeline; an ingenious anti-falling mechanism is arranged on the bearing plug and matched with a limiting step or a locking shaft in the bearing pipeline, automatic locking after insertion is achieved, loosening caused by vibration, pressure or thermal expansion and cold contraction is effectively prevented, an external locking piece does not need to be adopted for locking, meanwhile, the sealing assembly is reasonable in structural design and high in sealing reliability, and the sealing effect is good. The whole pipeline connection does not need additional tools or external locking pieces, and the installation process is simple and fast.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and specifically relates to a self-locking receiving pipe. Background Technology

[0002] Throughout the progress of human civilization, pipeline systems have always played a crucial role. From their initial use in transporting basic resources such as water and gas, to their widespread application in various fields such as industrial production and urban construction, their importance is self-evident. Among numerous connection technologies, the anti-detachment connector, as an important connection component, is at the forefront of pipeline connection technology development. It focuses on solving the most critical problem in pipeline connections—preventing detachment—and acts as a stabilizing "joint" in various pipeline systems.

[0003] In existing pipe connection systems, external locking devices (such as clamps) are typically used to connect the pipes together. This not only increases the number of parts, material costs, and installation time, but also makes operation in confined spaces inconvenient, thus affecting the normal operation of the entire equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a self-locking receiving pipe, which aims to solve the problem of inconvenient connection and installation of receiving pipes in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-locking receiving pipe, comprising: a receiving pipe and a receiving plug, the receiving plug being able to be inserted into the receiving pipe, the receiving pipe being provided with a first pipe, an inclined transition section, a second pipe and an enlarged diameter installation section in sequence along the insertion direction, and a limiting step being provided at the intersection of the enlarged diameter installation section and the second pipe; The inner wall of the enlarged diameter installation section is equipped with a sealing component, and the insertion end of the receiving plug is equipped with an anti-disengagement mechanism. When the receiving plug is subjected to an outward pulling force, the anti-disengagement mechanism is used to lock the receiving plug inside the receiving pipe.

[0006] As a self-locking receiving pipe of the present invention, preferably, the anti-detachment mechanism includes a snap-fit ​​section disposed at the front end of the receiving plug, wherein the snap-fit ​​section has inclined longitudinal grooves arranged in a ring along the axial direction, and a locking groove is provided on the snap-fit ​​section, the locking groove being connected to the longitudinal grooves. The receiving pipe is equipped with a locking shaft, which can be inserted into the locking slot along the longitudinal groove direction.

[0007] As a self-locking receiving pipe of the present invention, preferably, the cross-section of the locking shaft is circular.

[0008] As a self-locking receiving pipe of the present invention, preferably, the anti-detachment mechanism includes a limiting part disposed at the front end of the receiving plug and an anti-detachment ring sleeved on the outer circumference of the receiving plug, wherein the limiting part is an annular fold formed by folding the end of the pipe opening of the receiving plug inward.

[0009] As a self-locking receiving pipe of the present invention, preferably, an annular groove is formed on the outer peripheral surface of the receiving plug, and the anti-detachment ring is disposed inside the annular groove.

[0010] As a self-locking receiving pipe of the present invention, preferably, the anti-detachment ring has a wedge-shaped cross-section and an inclined opening is provided on the anti-detachment ring.

[0011] As a self-locking receiving pipe of the present invention, preferably, the enlarged diameter installation section is provided with an annular clamping rib, which presses against the outer peripheral surface of the sealing component.

[0012] As a self-locking receiving pipe of the present invention, preferably, the sealing assembly includes a sealing body and a sealing lip extending from the sealing body, the sealing lip being inclined toward the insertion direction of the receiving plug and tightly fitting the outer wall of the receiving plug.

[0013] As a self-locking receiving pipe of the present invention, preferably, the end of the enlarged diameter installation section is provided with an inwardly bent flange, which restricts the sealing assembly within the enlarged diameter installation section.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This self-locking connector features a cleverly designed anti-disengagement mechanism on the connector plug, which engages with a limiting step or locking shaft inside the connector pipe to achieve automatic locking after insertion. This effectively prevents loosening due to vibration, pressure, or thermal expansion and contraction, eliminating the need for external locking components. Furthermore, its sealing assembly has a rationally designed structure, ensuring high sealing reliability. The entire pipe connection requires no additional tools or external locking components, making installation simple and quick. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the internal structure of the second embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the first embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the receiving plug in the second embodiment of the present invention; Figure 4This is a three-dimensional structural diagram of the receiving plug in the first embodiment of the present invention; Figure 5 This is a front view cross-sectional structural diagram of the receiving plug structure in the first embodiment of the present invention.

[0016] In the diagram: 1. Receiving pipe; 10. First pipe; 11. Inclined transition section; 12. Second pipe; 13. Expanded diameter installation section; 14. Limiting step; 15. Locking shaft; 2. Receiving plug; 21. Snap-fit ​​section; 22. Longitudinal groove; 23. Locking groove; 24. Limiting part; 25. Anti-detachment ring; 251. Opening; 3. Annular clamping rib; 31. Sealing body; 32. Sealing lip; 33. Flange. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 2 The present invention provides the following technical solution: a self-locking receiving pipe, including a receiving pipe 1 and a receiving plug 2, wherein the receiving pipe 1 is provided with a first pipe 10, an inclined transition section 11, a second pipe 12 and an enlarged diameter installation section 13 in sequence along the insertion direction.

[0019] The inner diameter of the first pipe 10 is smaller than the outer diameter of the connector 2, which serves as a limit; the inner diameter of the inclined transition section 11 gradually increases along the direction of the connector 2, forming a smooth transition; the inner diameter of the second pipe 12 is larger than that of the first pipe 10, providing clearance for the insertion of the connector; the inner diameter of the enlarged installation section 13 is the largest, used to accommodate the sealing components and the anti-detachment mechanism.

[0020] A limiting step 14 is provided at the junction of the enlarged diameter installation section 13 and the second pipe 12. The inner wall of the enlarged diameter installation section 13 is provided with a sealing assembly, which includes a sealing body 31 and a sealing lip 32 extending from the sealing body 31. The sealing lip 32 is inclined toward the insertion direction of the receiving plug 2 and fits tightly against the outer wall of the receiving plug 2.

[0021] This orientation design allows the pressure to act on the back of the sealing lip 32 when there is fluid pressure inside the pipe, making it fit more tightly against the outer wall of the connector 2, thus achieving a pressure self-tightening seal.

[0022] The enlarged diameter installation section 13 is provided with an annular clamping rib 3, which presses against the outer periphery of the sealing body 31 to provide continuous radial clamping force for the sealing assembly and ensure sealing reliability.

[0023] The end of the enlarged diameter mounting section 13 is provided with an inwardly bent flange 33, which restricts the sealing assembly within the enlarged diameter mounting section 13 to prevent axial displacement of the sealing assembly under high pressure fluid or during installation.

[0024] The insertion end of the connector 2 is provided with an anti-disengagement mechanism. In this embodiment, the anti-disengagement mechanism includes a locking section 21 disposed at the front end of the connector 2. The locking section 21 is formed by the pipe wall of the connector 2 extending obliquely towards the receiving pipe 1, and the height of the locking section 21 gradually increases from the end near the receiving pipe 1 to the end away from the receiving pipe 1.

[0025] The locking section 21 has a ring of inclined longitudinal grooves 22 arranged in a circular array along the axial direction. The longitudinal grooves 22 extend along the axial direction of the receiving plug 2 and are inclined relative to the radial plane. The locking section 21 also has a locking groove 23, which is connected to the longitudinal grooves 22 to form an L-shaped locking channel.

[0026] A locking shaft 15 is installed inside the receiving pipe 1. The locking shaft 15 is located on the inner wall of the enlarged diameter installation section 13. (e.g.) Figure 2 (As shown). The cross-section of the locking shaft 15 is circular, and it can be a hemispherical, cylindrical, or spherical protrusion. In this embodiment, a hemispherical protrusion is preferred to reduce friction with the latching section 21.

[0027] Working principle: Insert the connector 2 into the first pipe 10 of the receiving pipe 1. The outer wall of the connector first contacts the sealing body 31. Continue to advance, and the locking section 21 enters the expansion installation section 13. When the locking shaft 15 contacts the locking section 21, due to the inclined guiding effect of the longitudinal groove 22, the locking section 21 rotates, allowing the locking shaft 15 to smoothly enter the locking groove 23. When the end face of the connector 2 contacts the inclined transition section 11, the connector is inserted into place. At this time, the locking shaft 15 is exactly aligned with the locking groove 23, and the locking shaft 15 is engaged in the locking groove 23, completing the installation.

[0028] Example 2: Figure 1 As shown, the same structure as in Embodiment 1 will not be described again. The main difference lies in the structure of the anti-detachment mechanism. In this embodiment, the anti-detachment mechanism includes a limiting part 24 disposed at the front end of the receiving plug 2 and an anti-detachment ring 25 sleeved on the outer periphery of the receiving plug 2. The limiting part 24 is an annular fold formed by folding the end of the tube opening of the receiving plug 2 inward. The annular fold can be integrally formed with the receiving plug 2, or it can be fixed by welding, riveting, or other methods.

[0029] An annular groove (not shown in the figure) is formed on the outer circumference of the connector 2, and an anti-disengagement ring 25 is disposed inside the annular groove. The cross-section of the anti-disengagement ring 25 is wedge-shaped, such as... Figure 1 As shown, one side of the wedge is a locking surface perpendicular to the axial direction, and the other side is an inclined guide surface.

[0030] The anti-detachment ring 25 can be made of high-molecular elastic material or rubber composite material, which has a certain radial elasticity and axial compression deformation capacity, and also has a waterproof function. The anti-detachment ring 25 has an inclined opening 251, which makes it convenient for the anti-detachment ring 25 to be fitted into the annular groove.

[0031] Working principle: When the connector 2 is inserted into the connector pipe 1, the inclined guide surface of the anti-detachment ring 25 first contacts the inlet of the expansion installation section 13. Under the action of the insertion force, the anti-detachment ring 25 is compressed and retracts inward, smoothly entering the expansion installation section 13. As it continues to advance, the limiting part 24 passes through the expansion installation section 13, and finally the end face of the connector 2 contacts the inclined transition section 11, and is installed in place. At this time, the anti-detachment ring 25 springs back to its original position, and its outer diameter is larger than the inner diameter of the sealing body 31 and the sealing lip 32.

[0032] When the connector 2 is subjected to an outward pulling force, the vertical locking surface of the anti-detachment ring 25 contacts the transition area of ​​the expanded diameter installation section 13 and the second pipe 12. Due to the compression of the wedge structure and the inner wall of the pipe, a huge frictional resistance and locking force are generated, thereby preventing detachment.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A self-locking receiving pipe, comprising: A receiving pipe and a receiving plug, wherein the receiving plug can be inserted into the receiving pipe, characterized in that... The receiving pipeline is provided with a first pipeline, an inclined transition section, a second pipeline and an enlarged diameter installation section in sequence along the insertion direction. A limit step is provided at the intersection of the enlarged diameter installation section and the second pipeline. The inner wall of the enlarged diameter installation section is equipped with a sealing component, and the insertion end of the receiving plug is equipped with an anti-disengagement mechanism. When the receiving plug is subjected to an outward pulling force, the anti-disengagement mechanism is used to lock the receiving plug inside the receiving pipe.

2. The self-locking receiving pipe according to claim 1, characterized in that: The anti-detachment mechanism includes a snap-fit ​​section disposed at the front end of the receiving plug. The snap-fit ​​section has inclined longitudinal grooves arranged in a ring along the axial direction. A locking slot is provided on the snap-fit ​​section, and the locking slot is connected to the longitudinal grooves. The receiving pipe is equipped with a locking shaft, which can be inserted into the locking slot along the longitudinal groove direction.

3. A self-locking receiving pipe according to claim 2, characterized in that: The locking shaft has a circular cross-section.

4. A self-locking receiving pipe according to claim 1, characterized in that: The anti-disengagement mechanism includes a limiting part set at the front end of the receiving plug and an anti-disengagement ring sleeved on the outer circumference of the receiving plug. The limiting part is an annular fold formed by folding the end of the receiving plug inward.

5. A self-locking receiving pipe according to claim 4, characterized in that: An annular groove is formed on the outer circumferential surface of the receiving plug, and the anti-detachment ring is disposed inside the annular groove.

6. A self-locking receiving pipe according to claim 5, characterized in that: The anti-detachment ring has a wedge-shaped cross-section and an inclined opening.

7. A self-locking receiving pipe according to claim 1, characterized in that: The enlarged diameter mounting section is provided with annular clamping ribs, which press against the outer circumferential surface of the sealing assembly.

8. A self-locking receiving pipe according to claim 7, characterized in that: The sealing assembly includes a sealing body and a sealing lip extending from the sealing body. The sealing lip is inclined toward the insertion direction of the receiving plug and fits tightly against the outer wall of the receiving plug.

9. A self-locking receiving pipe according to claim 1, characterized in that: The end of the enlarged mounting section is provided with an inwardly bent flange, which confines the sealing assembly within the enlarged mounting section.

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