Clamp sealing ring, groove clamp and pipeline connecting structure

Abstract

The utility model relates to the technical field of pipeline sealing, in particular to a hoop sealing ring, a groove hoop and a pipeline connecting structure. The hoop sealing ring comprises a rubber ring wall, rubber ring double edges, an outer sealing lip, a vibration reduction rib and a partition rib. The rubber ring double edges are located at the two axial ends of the rubber ring wall. The outer sealing lips and the vibration reduction ribs are located on the radial inner sides of the two edges of the rubber ring, the outer sealing lips are located on the axial inner sides of the two edges of the rubber ring, and the vibration reduction ribs are located on the axial outer sides of the two edges of the rubber ring; the partition ribs are located in the middle of the radial inner side of the rubber ring wall and arranged towards the radial inner side. The hoop sealing ring not only improves the sealing performance, but also can effectively block the transmission of vibration waves.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a clamp sealing ring, a grooved clamp and a pipeline connection structure. Background Art

[0002] In the field of modern water supply and drainage and water conservancy projects, the reliability and stability of pipeline connection are crucial for the safe operation of the entire system. As an efficient pipeline connection method, grooved clamps have been widely used in various projects due to their advantages such as simple installation, good sealing performance, and low maintenance cost.

[0003] The existing C-shaped rubber ring is a commonly used sealing element in grooved clamp connections. Its main components include an annular rubber ring body, which can achieve self-sealing under high pressure. The design of this rubber ring is mainly used to achieve a tight connection between pipelines, but its sealing performance and vibration damping effect are not ideal when connecting to valves. In addition, the structure of the C-shaped rubber ring limits its application in blocking the transmission of vibration waves, which is particularly obvious in engineering scenarios where vibration damping effects are required. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiments of the present utility model is to provide a clamp sealing ring to solve the limitations of the existing C-shaped rubber ring in connecting to valves and vibration damping. By adding vibration damping ribs and partition ribs, not only the sealing performance is improved, but also the transmission of vibration waves can be effectively blocked, thus providing a significant improvement in vibration damping.

[0005] To achieve the above purpose, the embodiments of the present utility model provide the following technical solutions:

[0006] A clamp sealing ring, comprising: a rubber ring wall, rubber ring double edges, an outer sealing lip, vibration damping ribs and partition ribs; the rubber ring double edges are located at both axial ends of the rubber ring wall; the outer sealing lip and the vibration damping ribs are located on the radial inner side of the rubber ring double edges, wherein the outer sealing lip is located on the axial inner side of the rubber ring double edges, and the vibration damping ribs are located on the axial outer side of the rubber ring double edges; the partition rib is located in the middle of the radial inner side of the rubber ring wall, and the partition rib is arranged towards the radial inner side.

[0007] Optionally, the rubber ring wall and the rubber ring double edges at both ends form a "冂"-shaped cross-section, the opening of the "冂"-shaped cross-section faces the radial inner side, and an arc transition is provided at the connection of the outer contours of the rubber ring wall and the rubber ring double edges.

[0008] Optionally, the outer sealing lip is arranged at an obtuse angle with the rubber ring double edges. The connection end of the outer sealing lip and the rubber ring double edges is denoted as the outer end, and the other end is denoted as the inner end. Then, the vertical distance from the inner end of the outer sealing lip to the rubber ring wall is greater than the vertical distance from the outer end of the outer sealing lip to the rubber ring wall, and the thickness of the outer sealing lip gradually becomes thicker from the inner end to the outer end.

[0009] Optionally, the cross section of the vibration-damping rib is rectangular, the vibration-damping rib is in the shape of a straight cylindrical ring as a whole, and the thickness of the vibration-damping rib along the axial direction is equal.

[0010] Optionally, the partition rib includes a connecting portion and a partition portion, the connecting portion is located radially outside the partition portion and connected to the rubber ring wall, the axial thickness of the partition portion is greater than the axial thickness of the connecting portion, and the radial inner end of the partition portion has an arc structure concave radially outward.

[0011] Optionally, after the sealing ring is installed in the pipeline, the outer sealing lip is bent. In this state, the radial inner end diameter of the partition rib is smaller than the radial inner end diameter of the outer sealing lip.

[0012] Optionally, a protrusion is further provided on the radial inner side of the rubber ring wall, the partition rib is arranged in the middle inner side of the protrusion, and inner sealing lips are further provided on both axial sides of the partition rib of the protrusion, an arc transition is formed between the partition rib and the inner sealing lip, and the inner sealing lip protrudes toward the outer sealing lip.

[0013] Optionally, under normal conditions, the radial inner end diameter of the inner sealing lip is larger than the radial inner end diameter of the outer sealing lip, and the thickness of the inner sealing lip gradually increases from the tip to the root.

[0014] An embodiment of the utility model also provides a groove clamp, including a groove pipe clamp and the clamp sealing ring as described above, wherein the groove pipe clamp has a receiving cavity in the middle of the inner side, and the axial ends of the receiving cavity have clamping rings protruding radially inward, and the clamp sealing ring is installed in the receiving cavity of the groove pipe clamp.

[0015] An embodiment of the utility model also provides a pipeline connection structure, including a pipeline for docking and the groove clamp as described above, wherein the pipe end of the pipeline is provided with a groove, the clamping ring of the groove clamp is clamped in the groove of the pipeline, and the partition rib is located between the two pipelines.

[0016] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0017] 1. In the clamp seal, the rubber ring wall is the main part of the seal, and has sufficient strength and elasticity to adapt to different working conditions. The two sides of the rubber ring are located at the axial ends of the rubber ring wall, which play a fixing and supporting role and enhance the stability of the seal. The outer sealing lip is designed on the radial inner side of the two sides of the rubber ring and is located on the axial inner side, which is used to connect with the valve and maintain sealing. The vibration damping rib is located on the radial inner side of the two sides of the rubber ring and faces the axial outer side, which is mainly used to absorb vibration and impact force and protect the structural integrity of the seal. The partition rib is arranged in the middle of the radial inner side of the rubber ring wall to block the transmission of vibration waves and ensure the independence of the pipelines. After this seal is connected with the groove clamp, it can not only effectively block the transmission of vibration waves, but also maintain sealing performance when connected with the valve, while overcoming the shortcomings of the existing groove clamp connection in vibration reduction.

[0018] 2. The original rubber ring ribs are protrusions inside the rubber ring, which only play the role of enhancing the support force of the rubber ring and preventing negative pressure. This clamp seal does not change the original function of the rubber ring ribs. The design of vibration reduction ribs and partition ribs is added on both sides of the rubber ring and the position of the original rubber ring ribs, which increases the function of blocking the transmission of vibration waves and can replace the expansion joint.

[0019] Additional advantages of the present invention will be given in the following description, and some will become apparent from the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 It is a schematic cross-sectional view of a sealing ring provided in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the stretched state of the pipe end provided by the embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the closed state of the pipe end provided by the embodiment of the utility model;

[0024] Figure 4 It is a partial schematic diagram of the installation of the vibration damping rib provided in the embodiment of the utility model;

[0025] Figure 5 This is a partial schematic diagram of the installation of the partition bar provided in the embodiment of the utility model;

[0026] In the figure: 1. Sealing ring; 11. Rubber ring wall; 12. Rubber ring double sides; 13. Vibration damping ribs; 14. External sealing lip; 15. Partition ribs; 2. Grooved clamp; 3. Pipeline;

[0027] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0028] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Example 1

[0030] As mentioned in the background technology, the existing C-type rubber ring has the following technical problems in practical applications: 1. Sealing performance limitations: When the C-type rubber ring is connected to the valve, it cannot provide a continuous and stable sealing effect, and the seal may fail easily due to frequent operation of the valve. 2. Lack of vibration reduction function: The existing C-type rubber ring design does not take into account the vibration reduction requirements and cannot effectively block the vibration transmission caused by rapid valve switching or external impact. 3. Single structure: The structure of the C-type rubber ring is relatively simple, lacking the necessary vibration reduction and partition design, and cannot adapt to complex and changeable engineering environments. In order to solve the above technical problems, the utility model proposes a clamp sealing ring. The one-piece special-shaped clamp sealing ring overcomes the shortcomings of the existing groove clamp connection in sealing and vibration reduction, and provides a more reliable and economical connection solution for water supply and drainage and water conservancy projects.

[0031] like Figure 1 As shown, the clamp seal 1 includes: a rubber ring wall 11, two sides of the rubber ring 12, an outer sealing lip 14, vibration damping ribs 13 and partition ribs 15; the two sides of the rubber ring 12 are located at the axial ends of the rubber ring wall 11; the outer sealing lip 14 and the vibration damping ribs 13 are located on the radial inner side of the two sides of the rubber ring 12, wherein the outer sealing lip 14 is located on the axial inner side of the two sides of the rubber ring 12, and the vibration damping ribs 13 are located on the axial outer side of the two sides of the rubber ring 12; the partition ribs 15 are located in the middle of the radial inner side of the rubber ring wall 11, and the partition ribs 15 are arranged toward the radial inner side.

[0032] In the installed set of groove clamps 2, as shown in Figure 2 , Figure 3 As shown, the outer sealing lip 14 of the sealing ring 1 and the newly added vibration damping ribs 13 and the partition ribs 15 will exert pre-pressure on the end sealing surface of the connecting pipe 3. Figure 4 As shown, the design of the vibration damping rib 13 not only maintains the appropriate spacing between the groove clamp 2 and the steel pipe, but also ensures the independence of the pipelines 3 through the partition rib 15 (such as Figure 5As shown, this structure can effectively isolate the direct contact between the pipeline 3 and the grooved coupling 2, as well as between pipelines, effectively blocking the heat expansion, contraction caused by the rapid opening and closing of the valve or temperature changes, and the vibration transmission caused by external impacts.

[0033] In practical applications, the sealing ring 1 can be made of synthetic rubber materials resistant to oil, temperature, and chemical corrosion, such as polyurethane materials, oil-resistant rubber, silicone rubber, nitrile rubber, or fluororubber, etc.

[0034] The rubber ring wall 11 and the rubber ring double sides 12 at both ends form a "冂"-shaped cross-section. The opening of the "冂"-shaped cross-section faces radially inward. An arc transition is provided at the connection of the outer contours of the rubber ring wall 11 and the rubber ring double sides 12. This design can provide better support and sealing effects. The opening of the "冂"-shaped cross-section facing radially inward is beneficial for the rubber ring to better adapt to the shape of the grooved coupling 2 during installation, so as to fit the receiving cavity of the grooved coupling 2 to prevent displacement and sliding. The arc transition at the connection of the outer contours of the rubber ring wall 11 and the rubber ring double sides 12 is beneficial for evenly distributing the pressure, avoiding material fatigue and damage caused by excessive local stress, and prolonging the service life of the sealing ring 1.

[0035] During preparation, this sealing ring 1 with a specific cross-sectional shape can be manufactured by die pressing or injection molding processes. The size of the arc transition needs to be determined according to the overall size of the rubber ring and the expected working conditions to ensure that it can provide good sealing performance and maintain sufficient structural strength.

[0036] The outer sealing lip 14 is arranged at an obtuse angle with the rubber ring double sides 12. The connection end of the outer sealing lip 14 and the rubber ring double sides 12 is denoted as the outer end, and the other end is denoted as the inner end. Then, the vertical distance from the inner end of the outer sealing lip 14 to the rubber ring wall 11 is greater than the vertical distance from the outer end of the outer sealing lip 14 to the rubber ring wall 11, and the thickness of the outer sealing lip 14 gradually thickens from the inner end to the outer end.

[0037] The outer sealing lip 14 is arranged on the radially inner side and close to the axially inner side of the rubber ring double sides 12 for providing a primary sealing function. The outer sealing lip 14 is arranged at an obtuse angle with the rubber ring double sides 12. This structural design can enable the outer sealing lip 14 to be in close contact with the surface of the pipeline 3 when the sealing ring 1 is under pressure, thereby improving the sealing performance. The thickness of the outer sealing lip 14 gradually thickens from the inner end to the outer end. Such a design can enhance the structural strength of the sealing lip, prevent deformation or rupture under high-pressure environments, and help maintain a stable sealing effect under different pressures. During the manufacturing process, this thickness change of the outer sealing lip 14 can be achieved by adjusting the die design to ensure that it can adapt to different working pressures after installation.

[0038] The cross section of the vibration damping rib 13 is rectangular, the vibration damping rib 13 is in the shape of a straight cylindrical ring, and the thickness of the vibration damping rib 13 along the axial direction is equal. The thickness of the vibration damping rib 13 along the axial direction remains equal, which helps to provide a consistent vibration damping effect over the entire circumference.

[0039] The partition rib 15 includes a connecting portion and a partition portion, wherein the connecting portion is located radially outside the partition portion and connected to the rubber ring wall 11, the axial thickness of the partition portion is greater than the axial thickness of the connecting portion, and the radial inner end of the partition portion has an arc structure concave radially outward.

[0040] The connecting portion is located radially outside the partition portion and connected to the rubber ring wall 11. This design helps to improve the structural stability of the partition rib 15. The axial thickness of the partition portion is greater than that of the connecting portion, which can provide a stronger partition effect. The radial inner end of the partition portion has an arc-shaped structure that is concave radially outward. This design facilitates a certain deformation of the partition rib 15 when it is squeezed, thereby ensuring the vibration blocking effect.

[0041] like Figure 2 , Figure 3 As shown, after the sealing ring 1 is installed in the pipe 3, the outer sealing lip 14 is bent. In this state, the radial inner end diameter of the partition rib 15 is smaller than the radial inner end diameter of the outer sealing lip 14. After the sealing ring 1 is installed in the pipe 3, the outer sealing lip 14 will be bent. This design helps to form a tighter seal. In this state, the radial inner end diameter of the partition rib 15 is smaller than the radial inner end diameter of the outer sealing lip 14. This design ensures that during the installation and use of the pipe 3, the partition rib 15 can effectively isolate the pipe 3 and play a vibration blocking effect.

[0042] A raised portion is provided on the radial inner side of the rubber ring wall 11, and the partition rib 15 is arranged in the middle of the inner side of the raised portion. Inner sealing lips are also provided on both axial sides of the partition rib 15 of the raised portion, and the inner sealing lips protrude toward the outer sealing lip 14 and form a diagonal arrangement with the outer sealing lip 14, thereby providing multi-level sealing protection to prevent medium leakage.

[0043] like Figure 1 As shown, under normal conditions, the radial inner end diameter of the inner sealing lip is larger than the radial inner end diameter of the outer sealing lip 14. This design helps to form a tighter seal after the seal ring 1 is installed. The thickness of the inner sealing lip gradually increases from the tip to the root. This design enables the inner sealing lip to gradually apply pressure during installation and provide a progressive sealing effect. The thicker root structure enhances the strength of the inner sealing lip, preventing deformation or rupture under high pressure, and also improves the overall sealing performance of the seal ring 1.

[0044] Example 2

[0045] Based on the clamp seal ring 1 of embodiment 1, this embodiment proposes a groove clamp 2, including a groove pipe clamp and a clamp seal ring 1, wherein the groove pipe clamp has a receiving cavity in the middle of the inner side, and the axial ends of the receiving cavity have clamp rings protruding radially inward, and the clamp seal ring 1 is installed in the receiving cavity of the groove pipe clamp. This design helps to fix the seal ring 1 and ensure that it performs the expected function in the pipeline connection.

[0046] In practical applications, the grooved pipe clamp can be made of metal materials to provide the necessary strength and stability, such as stainless steel, forged steel, cast steel or ductile iron. The design of the clamp ring needs to take into account the fit with the groove of the pipe 3 to ensure that the clamp can be firmly fixed on the pipe 3. The installation of the clamp seal 1 needs to ensure that it is properly matched with the accommodating cavity of the grooved pipe clamp to achieve the functions of sealing and vibration reduction.

[0047] Example 3

[0048] Based on the groove clamp 2 of embodiment 2, this embodiment provides a pipeline connection structure, such as Figure 3 , Figure 4 As shown, it comprises a pipe 3 and a groove clamp 2 for docking, the pipe end of the pipe 3 is provided with a groove, the clamp ring of the groove clamp 2 is clamped in the groove of the pipe 3, and the partition rib 15 is located between the two pipes 3. This position arrangement helps to block the thermal expansion and contraction caused by rapid valve switching or temperature changes, as well as the vibration transmission caused by external impact.

[0049] In the actual installation process, it is necessary to ensure that the groove of the pipe 3 and the clamp ring of the groove clamp 2 are correctly matched, and the sealing ring 1 is correctly installed in the accommodating cavity of the groove pipe clamp. The position of the partition rib 15 needs to ensure that it can play a role in blocking vibration during the pipe connection. This pipe connection structure not only improves the reliability of the pipe connection, but also simplifies the installation process and facilitates maintenance and repair.

[0050] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the protection scope of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the protection scope of the utility model.

Claims

1. A clamp seal ring, characterized in that: Comprising: The rubber ring wall, rubber ring double sides, outer sealing lip, damping ribs and partition ribs; The rubber ring double sides are located at the axial two ends of the rubber ring wall; The outer sealing lip and the damping ribs are located on the radially inner side of the rubber ring double sides, wherein the outer sealing lip is located on the axially inner side of the rubber ring double sides, and the damping ribs are located on the axially outer side of the rubber ring double sides; The partition rib is located in the middle of the radially inner side of the rubber ring wall, and the partition rib is arranged towards the radially inner side.

2. The clamp seal ring according to claim 1, characterized in that: The rubber ring wall and the rubber ring double sides at both ends form a "冂”-shaped cross-section, the opening of the "冂”-shaped cross-section faces the radially inner side, and an arc transition is provided at the connection of the outer contours of the rubber ring wall and the rubber ring double sides.

3. The clamp seal ring according to claim 1, characterized in that: The outer sealing lip is arranged at an obtuse angle with the rubber ring double sides. The connection end of the outer sealing lip and the rubber ring double sides is denoted as the outer end, and the other end is denoted as the inner end. Then, the vertical distance from the inner end of the outer sealing lip to the rubber ring wall is greater than the vertical distance from the outer end of the outer sealing lip to the rubber ring wall, and the thickness of the outer sealing lip gradually thickens from the inner end to the outer end.

4. The clamp seal ring according to claim 1, characterized in that: The cross-section of the damping rib is rectangular, the damping rib is integrally in the shape of a straight cylindrical ring, and the thickness of the damping rib along the axial direction is equal.

5. The clamp seal ring according to claim 1, characterized in that: The partition rib includes a connecting portion and a partitioning portion. The connecting portion is located on the radially outer side of the partitioning portion and is connected to the rubber ring wall. The axial thickness of the partitioning portion is greater than the axial thickness of the connecting portion, and the radially inner end of the partitioning portion has an arc-shaped structure concave towards the radially outer side.

6. The clamp seal ring according to claim 5, characterized in that: After the sealing ring is installed on the pipeline, the outer sealing lip is bent. In this state, the radially inner end diameter of the partition rib is smaller than the radially inner end diameter of the outer sealing lip.

7. The clamp seal ring according to claim 1, characterized in that: A convex portion is further provided on the radially inner side of the rubber ring wall. The partition rib is arranged in the middle of the inner side of the convex portion. Inner sealing lips are further provided on both axial sides of the partition rib in the convex portion. An arc transition is formed between the partition rib and the inner sealing lips, and the inner sealing lips protrude towards the outer sealing lip direction.

8. The clamp seal ring according to claim 7, characterized in that: Under normal conditions, the radially inner end diameter dimension of the inner sealing lip is greater than the radially inner end diameter dimension of the outer sealing lip, and the thickness of the inner sealing lip gradually thickens from the tip to the root.

9. A groove clamp, characterized in that: Comprising a grooved pipe clamp and the clamp sealing ring according to any one of claims 1-8. The middle of the inner side of the grooved pipe clamp has a receiving cavity. The axial two ends of the receiving cavity have snap rings protruding towards the radially inner side. The clamp sealing ring is installed in the receiving cavity of the grooved pipe clamp.

10. A pipeline connection structure, characterized in that: Comprising a pipeline for docking and the grooved pipe clamp according to claim 9. A groove is provided at the pipe end of the pipeline. The snap ring of the grooved pipe clamp is clamped in the groove of the pipeline, and the partition rib is located between the two pipelines.

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