Connecting pipe joint assembly

Abstract

The utility model relates to the technical field of connecting pipe joint equipment, in particular to a connecting pipe joint assembly, and aims to solve the problems that a traditional sealing ring is prone to leakage in high-pressure and high-temperature environments and the performance is reduced after long-term use. The assembly comprises a first connecting body, a second connecting body and a self-adjusting sealing ring, the sealing ring is made of memory alloy or special rubber and is of a corrugated or spiral structure, and the sealing ring can be automatically adjusted in shape under different pressures so as to enhance the sealing effect. When the pressure in the pipeline rises, the sealing ring expands to fill the gap; when the pressure is reduced, the pressure recovers. This design ensures that a good seal can be maintained even under extreme conditions. According to the utility model, the sealing reliability is improved, the installation process is simplified, the maintenance requirement is reduced, the device is also suitable for various industrial application scenes, and the operation efficiency and the safety of the system are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting pipe joint equipment technical field, concretely relates to a connecting pipe joint assembly. BACKGROUND

[0002] The information disclosed in the background of the utility model is only intended to increase the understanding of the overall background of the utility model, and is not necessarily regarded as acknowledging or implicitly suggesting that the information constitutes prior art known to those skilled in the art.

[0003] As a key component for connecting two sections of pipeline or changing fluid path, the performance of pipe joint directly affects the operation efficiency and safety of the whole system. Traditional pipe joints usually adopt static sealing design, mainly relying on pre-tightening force and fixed-shaped sealing ring to realize sealing function.

[0004] However, the above design has the problem of insufficient sealing reliability. The traditional sealing ring is prone to leakage when facing extreme working conditions such as high pressure and high temperature. Especially after long-term use, due to material aging or wear, the sealing performance will further decrease.

[0005] Therefore, there is an urgent need for a new type of pipe joint solution that can dynamically adjust the sealing effect according to the actual working conditions. UTILITY MODEL CONTENT

[0006] In order to solve the above technical problems, the utility model provides a connecting pipe joint assembly, which can automatically adjust the sealing effect according to the internal pressure and temperature of the pipeline.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A connecting pipe joint assembly, comprising a first connecting body, a second connecting body and a sealing ring, the sealing ring being installed between the first connecting body and the second connecting body;

[0009] The sealing ring is a self-adjusting sealing ring that can be dynamically adjusted, the self-adjusting sealing ring comprising a sealing body, the sealing body being provided with corrugations, the sealing body being provided with a helical elastic memory body inside, the elastic memory body being used to adjust the sealing effect by changing the shape of the helix according to temperature and pressure.

[0010] As a preferred, the sealing body comprises a body section, the body section being provided with a first corrugated section and a second corrugated section at both ends.

[0011] As a preferred, the first connecting body and the second connecting body are respectively provided with a first mounting groove and a second mounting groove for mounting the sealing ring.

[0012] As preferred, the connecting end surface of the first connecting body is provided with a mounting end portion, and the sealing ring is sleeved on the mounting end portion.

[0013] As preferred, the connecting end surface of the second connecting body is provided with an internal groove matched with the mounting end portion.

[0014] As preferred, the elastic memory body is a memory alloy or a special rubber.

[0015] As preferred, a spring is further sleeved on the corrugated segment of the sealing ring.

[0016] The utility model includes but is not limited to the following beneficial effects:

[0017] The utility model has adopted the memory material that can automatically adjust shape according to temperature and pressure, makes the sealing ring can provide optimal sealing effect under different working conditions. Under high pressure or extreme temperature environment, the sealing ring can dynamically adjust to ensure that there is no leakage, thereby improve the reliability and safety of system.

[0018] The utility model has better durability, can resist longer operation without efficiency, thereby prolongs its overall service life due to the self-repairing characteristics of the sealing ring and the continuous support provided by the spring. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic of the utility model Figure 1 ;

[0020] Figure 2 It is the structure schematic of the sealing ring;

[0021] Figure 3 It is Figure 2 The enlarged structure schematic of A in the middle;

[0022] Figure 4 It is the whole structure schematic of the utility model Figure 2 .

[0023] The reference signs involved in the drawings are: 100, second connecting body;110, second mounting groove;120, internal groove;200, first connecting body;210, first mounting groove;220, mounting end portion;300, sealing ring;310, first corrugated segment;320, second corrugated segment;330, main body segment;340, elastic memory body;400, spring. DETAILED DESCRIPTION

[0024] In order to make those skilled in the art can better understand the utility model, the utility model technical scheme is further explained below in connection with the drawings and examples.

[0025] Figures 1 to 4 A connecting pipe joint assembly is shown, comprising a first connecting body, a second connecting body and a sealing ring, the sealing ring is installed between the first connecting body and the second connecting body;

[0026] The sealing ring is a self-adjusting sealing ring that can be dynamically adjusted, the self-adjusting sealing ring comprises a sealing body, the sealing body is provided with a corrugated shape, and a spiral elastic memory body is arranged in the sealing body, the elastic memory body is used to adjust the sealing effect by changing the shape of the spiral according to the temperature and pressure. The structure of such a sealing ring allows it to have a large deformation space in both axial and radial directions. When the internal pressure increases, the corrugated or spiral part will gradually unfold, filling the possible gap.

[0027] The above-mentioned elastic memory body includes a memory alloy (copper-zinc alloy, nitinol) or a special rubber (such as fluororubber, silicone rubber), which can restore to its original shape after deformation by external force, and maintain stable performance within a certain temperature range.

[0028] Taking the pressure response mechanism as an example, the principle is as follows:

[0029] When the fluid pressure in the pipeline reaches a certain threshold (such as 0.5MPa), the sealing ring begins to swell slightly, initially filling the small gap between the pipeline wall and the joint.

[0030] If the pressure continues to rise to a higher level (such as 2MPa), the corrugated or spiral structure will further unfold, making the sealing ring fit the inner wall of the pipeline more tightly, forming a double or even multiple sealing layer.

[0031] The pressure level and shape correspondence is as follows:

[0032] Low pressure state (<0.5MPa): the sealing ring remains in the initial contracted state, relying only on its own pre-pressing force to provide basic sealing.

[0033] Medium pressure state (0.5MPa-2MPa): as the pressure rises, the sealing ring begins to swell, the corrugated or spiral structure gradually unfolds, and the sealing effect is enhanced.

[0034] High pressure state (>2MPa): the sealing ring is fully unfolded, forming the thickest sealing layer, ensuring good sealing performance even under extreme conditions.

[0035] The connecting pipe joint assembly is based on the unique properties of elastic memory materials, which can change shape after applying external force and restore to its original shape after removing the external force. By cleverly utilizing this feature, a sealing ring that can automatically adjust its shape according to the internal pressure of the pipeline is designed, not only improving the sealing effect, but also simplifying the installation process and reducing maintenance requirements.

[0036] In another embodiment, in order to improve the strength and installation stability of the sealing ring, the sealing body comprises a body section, and first and second corrugated sections are arranged at both ends of the body section.

[0037] Meanwhile, the first and second connecting bodies are respectively provided with first and second installation grooves for installing the sealing ring.

[0038] In another embodiment, in order to further improve the installation stability of the sealing ring, the connecting end face of the first connecting body is provided with an installation end portion, and the sealing ring is sleeved on the installation end portion, and the installation end portion provides a guiding and positioning basis for the installation of the sealing ring.

[0039] Meanwhile, the connecting end face of the second connecting body is provided with an inner groove matched with the installation end portion.

[0040] In another embodiment, the connecting pipe joint assembly further comprises a spring sleeved on the corrugated section of the sealing ring, and the sealing ring body itself has a certain pre-tightening pressure, and the spring is used to improve the pre-tightening force.

[0041] During installation, the compression force provided by the spring can help the sealing ring tightly fit between the first and second connecting bodies, and provide continuous elastic support for the sealing ring, so that stable sealing effect can be maintained even in the case of long-time operation or temperature change.

[0042] Moreover, the presence of the spring helps to uniformly distribute the stress applied on the sealing ring, avoids the risk of local stress concentration leading to sealing failure, and thus prolongs the service life of the sealing ring. Therefore, the addition of the spring not only enhances the installation stability of the sealing ring, but also significantly improves the working performance of the entire connecting pipe joint assembly.

[0043] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be mutually referred to.

[0044] In the specification, the terms "upper", "lower", "outer side", "inner side" and the like in the description and claims and the above drawings, if any, are used to distinguish the relative position relationship, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0045] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting pipe fitting assembly, comprising a first connecting body, a second connecting body, and a sealing ring, wherein the sealing ring is installed between the first connecting body and the second connecting body; characterized in that: The sealing ring is a dynamically adjustable self-adjusting sealing ring. The self-adjusting sealing ring includes a sealing body with a corrugated shape and a spiral elastic memory body inside the sealing body. The elastic memory body is used to adjust the sealing effect by changing the shape of the spiral according to temperature and pressure.

2. The connecting pipe fitting assembly as described in claim 1, characterized in that: The sealing body includes a main body section, and the two ends of the main body section are provided with a first corrugated section and a second corrugated section.

3. The connecting pipe fitting assembly as described in claim 1, characterized in that: The first connecting body and the second connecting body respectively have a first mounting groove and a second mounting groove for installing the sealing ring.

4. The connecting pipe fitting assembly as described in claim 1, characterized in that: The first connecting body has an installation end on its connecting end face, and the sealing ring is fitted onto the installation end.

5. The connecting pipe fitting assembly as described in claim 4, characterized in that: The connecting end face of the second connecting body is provided with an inner groove that is adapted to the mounting end.

6. The connecting pipe fitting assembly as described in claim 1, characterized in that: The elastic memory body is a shape memory alloy or a special rubber.

7. The connecting pipe fitting assembly as described in any one of claims 1 to 6, characterized in that: It also includes a spring fitted into the corrugated section of the sealing ring.

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