Sealing ring structure with embedded metal ring

Abstract

According to the sealing ring structure with the embedded metal ring, the metal ring with the Z-shaped cross section is embedded into the sealing body, and the sealing body is supported by the metal ring, so that the durability of the sealing ring is improved, the service life of the sealing ring is prolonged, and the service life of the sealing ring is prolonged. The problem of sealing failure caused by excessive deformation of the sealing body during extrusion is also prevented, so that the sealing body can be more tightly attached to the corresponding sealing surface, the sealing performance is better, the safety is higher, the problem that the sealing ring needs to be frequently checked and replaced is avoided, the workload of workers is relieved, and in addition, the working efficiency is improved. The metal ring with the Z-shaped section can better limit the movement of the metal ring in the sealing body, so that the combination of the metal ring and the sealing body is better, the structural strength of the metal ring is enhanced, the problem that the metal ring is extruded to deform is avoided, the supporting performance of the metal ring is maintained, and the sealing effect is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing parts, in particular to a sealing ring structure with an embedded metal ring. Background Art

[0002] As a common structure in sealing scenarios, the sealing ring is usually set between two components. It is deformed by the extrusion of the two components, and the deformed part fills the assembly gap between the two components, thereby achieving sealing between the two components.

[0003] As the main sealing structure when the plug connector is connected to the hole, the cylindrical sealing ring is usually sleeved outside the plug connector. When the plug connector is inserted into the hole, the outer wall of the plug connector and the inner wall of the hole squeeze the cylindrical sealing ring, thereby achieving a seal between the plug connector and the corresponding hole. At present, the existing sealing rings on the market, such as a rubber sealing ring disclosed in patent CN212509476U, include a cylindrical body, the top of the body has a cone arranged coaxially with the body, the end of the cone with a larger diameter is connected to the top of the body, the inner wall of the cone has a number of annular grooves, and the bottom end of the body has a circle of radially outward convex rings, the bottom surface of the convex ring is an outward-expanding cone surface, and the bottom surface of the convex ring has a sealing structure that reduces the contact area. During installation, a pipe such as a hose or a bellows is inserted into the cone, and then the whole is inserted into the hole, and the sealing is achieved by squeezing the sealing ring. Although the above structure can meet conventional usage requirements, the sealing ring body is usually made of rubber. When used in harsh environments such as high temperature, high pressure and filled with chemical media, it will age rapidly, resulting in insufficient durability and reduced sealing performance, affecting its service life and sealing effect, thereby causing major safety hazards. The sealing ring needs to be frequently inspected and replaced, which places a heavy workload on the staff. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a sealing ring structure with an embedded metal ring, so that a metal ring is embedded in a sealing body. The metal ring provides support for the sealing body, thereby increasing the overall durability of the sealing ring and extending its service life. In addition, the metal ring can also limit excessive deformation of the sealing body, ensuring that the sealing ring can fit tightly to the corresponding sealing surface, thereby improving the sealing performance and reducing the risk of leakage, thereby avoiding the need for frequent inspection and replacement of the sealing ring and reducing the workload of the staff.

[0005] The specific technical solutions are as follows:

[0006] A sealing ring structure with an embedded metal ring has the following characteristics, including:

[0007] A sealing body, wherein the sealing body is arranged in a cylindrical shape;

[0008] The metal ring is embedded in the sealing body and is coaxially arranged with the sealing body. At the same time, the cross section of the metal ring in the plane along the axial direction of the sealing body is arranged in a "Z" shape, and the two ends of the metal ring extend toward the two ends of the sealing body respectively.

[0009] The above-mentioned sealing ring structure with an embedded metal ring, wherein a ring-shaped conical protrusion is provided at one end of the sealing body, and a distance is provided between the outer wall of the conical protrusion and the outer wall of the sealing body, and the inner wall of the conical protrusion extends to the inner wall of the sealing body.

[0010] In the above-mentioned sealing ring structure with an embedded metal ring, the conical protrusion and the sealing body are an integrated structure.

[0011] In the above-mentioned sealing ring structure with an embedded metal ring, a plurality of annular inner grooves are formed on the inner side wall of the sealing body.

[0012] In the above-mentioned sealing ring structure with an embedded metal ring, a plurality of annular outer grooves are provided on the outer side wall of the sealing body, and the inner grooves and the outer grooves are staggered in the axial direction of the sealing body.

[0013] In the above-mentioned sealing ring structure with an embedded metal ring, the outer edge and the inner edge of the sealing body at one end away from the conical protrusion are both chamfered.

[0014] In the above-mentioned sealing ring structure with an embedded metal ring, the material of the sealing body is one of EPDM (English: Ethylene Propylene Diene Monomer; Chinese: ethylene propylene diene monomer rubber), FKM (English: Fluororubber; Chinese: fluororubber), and HNBR (English: Hydrogenated nitrile rubber; Chinese: hydrogenated nitrile rubber).

[0015] The above-mentioned sealing ring structure with an embedded metal ring, wherein the material of the metal ring is stainless steel, and the hardness is less than or equal to 200HV.

[0016] In the above-mentioned sealing ring structure with an embedded metal ring, the metal ring is located on the outer side of the center line of the wall thickness of the sealing body.

[0017] In the above-mentioned sealing ring structure with an embedded metal ring, the metal ring is located at one end of the sealing body provided with a conical protrusion.

[0018] The positive effects of the above technical solution are:

[0019] The above-mentioned sealing ring structure with an embedded metal ring, by embedding a metal ring with a "Z"-shaped cross-section in a cylindrical sealing body, provides support for the sealing body through the metal ring, thereby improving the durability of the sealing ring and extending the service life of the sealing ring. At the same time, it can also prevent the sealing body from excessively deforming during extrusion, so that the sealing body can fit the corresponding sealing surface more closely, thereby improving the sealing performance, reducing the risk of leakage, and improving safety, thereby reducing the frequency of inspection and replacement and alleviating the workload of the staff. In addition, the metal ring with a "Z"-shaped cross-section can increase the resistance of the metal ring to the up and down movement in the sealing body, improve the stability of the metal ring embedded in the sealing body, and at the same time, enhance the structural strength of the metal ring itself, avoid the problem of the metal ring itself being squeezed and deformed, and further ensure the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of a sealing ring structure with an embedded metal ring according to the utility model;

[0021] Figure 2 This is a structural diagram of a sealing ring structure with an embedded metal ring according to the utility model;

[0022] Figure 3 The utility model is a cross-sectional view of a sealing ring structure with an embedded metal ring.

[0023] In the accompanying drawings: 1. sealing body; 11. conical protrusion; 12. inner groove; 13. outer groove; 14. chamfer; 2. metal ring; 3. plug connector. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 3 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.

[0025] Figure 1 This is a schematic diagram of the installation of a sealing ring structure with an embedded metal ring according to the utility model; Figure 2 This is a structural diagram of a sealing ring structure with an embedded metal ring according to the utility model; Figure 3 This is a cross-sectional view of a sealing ring structure with an embedded metal ring according to the present invention. Figure 1 , Figure 2 As shown, the sealing ring structure with an embedded metal ring provided in this embodiment includes: a sealing body 1 and a metal ring 2.

[0026] Specifically, the sealing body 1 is arranged in a cylindrical shape, and the sealing body 1 is made of rubber material, which can be deformed when squeezed, thereby filling the gap and achieving sealing. In addition, the sealing body 1 of the cylindrical structure can be sleeved outside the plug connector 3 and inserted into the corresponding hole, achieving a large range of coverage in the axial direction, a larger sealing area, and better sealing reliability.

[0027] Specifically, the metal ring 2 is embedded in the sealing body 1, that is, the metal ring 2 is located in the wall of the sealing body 1, so that the sealing body 1 completely wraps the metal ring 2, so that the metal ring 2 only provides internal support to the sealing body 1, and the inner wall and outer wall of the sealing ring are both the sealing body 1, thereby ensuring that the contact parts between the sealing ring and the corresponding sealing surface are all deformable structures, ensuring the sealing performance during sealing. In addition, the metal ring 2 is coaxially arranged with the sealing body 1, so that the metal ring 2 can be evenly arranged in the sealing body 1 in the circumferential direction, and there will be no problem of tilted arrangement, thereby ensuring that the metal ring 2 can support the sealing body 1 more evenly in the circumferential direction, thereby ensuring that the deformation capacity of the sealing ring is the same at all places in the circumferential direction, ensuring the sealing effect. At the same time, the cross-section of the metal ring 2 in the plane along the axial direction of the sealing body 1 is arranged in a "Z" shape, that is, when the plane arranged along the axial direction of the sealing body 1 is a cross-section, the cross-sectional shape of the metal ring 2 is arranged in a "Z" shape, so that the two ends of the metal ring 2 are staggered in the axial direction of the sealing body 1, and the two ends of the metal ring 2 extend toward the two ends of the sealing body 1 respectively, so that a bent step can be formed in the middle of the metal ring 2, so that after the metal ring 2 is embedded in the sealing body 1, the movement of the metal ring 2 in the axial direction of the sealing body 1 can be limited by the bent step. At the same time, the movement of the metal ring 2 in the radial direction of the sealing body 1 is limited by the two ends of the metal ring 2, which improves the stability and reliability of the installation of the metal ring 2 in the sealing body 1. In addition, the structural strength of the metal ring 2 itself is also enhanced, avoiding the problem of the metal ring 2 itself being squeezed and deformed and losing its supporting function, and further ensuring the sealing performance.

[0028] More specifically, a ring-shaped conical protrusion 11 is provided at one end of the sealing body 1, and a protruding and tightening structure is formed at one end of the sealing body 1 through the conical protrusion 11. At this time, a spacing is provided between the outer wall of the conical protrusion 11 and the outer wall of the sealing body 1, that is, the wall thickness of the conical protrusion 11 is less than the wall thickness of the sealing body 1, so that an empty space is formed on the outer side of the conical protrusion 11, providing a deformation space for the subsequent deformation of the conical protrusion 11. In addition, the inner wall of the conical protrusion 11 extends to the inner wall of the sealing body 1, realizing a smooth connection between the inner wall of the conical protrusion 11 and the inner wall of the sealing body 1. In addition, the small head end of the conical protrusion 11 is the end away from the sealing body 1, so that when the conical protrusion 11 is squeezed later, the deformation amount of the small head end of the conical protrusion 11 away from the end of the sealing body 1 is larger, so that the conical protrusion 11 can be deformed quickly to achieve rapid sealing of the end.

[0029] More specifically, the conical protrusion 11 and the sealing body 1 are designed to be an integrated structure, that is, the conical protrusion 11 and the sealing body 1 are injection molded as a whole, which is not only convenient to process, but also ensures the structural strength between the conical protrusion 11 and the sealing body 1, prevents leakage between the conical protrusion 11 and the sealing body 1, and also achieves one-step installation, making disassembly and assembly more convenient.

[0030] More specifically, a plurality of annular inner grooves 12 are provided on the inner wall of the sealing body 1, that is, the inner wall of the sealing body 1 is divided into multiple sections by the plurality of inner grooves 12, and gaps are left between adjacent sections, so that more compression parts are formed during subsequent extrusion deformation, thereby forming multiple sealing parts, increasing the sealing area, and achieving a better sealing effect.

[0031] Similarly, a plurality of annular outer grooves 13 are provided on the outer side wall of the sealing body 1, that is, the outer side wall of the sealing body 1 is divided into multiple sections by the plurality of outer grooves 13, and gaps are also left between adjacent sections, so that when extrusion deformation occurs during subsequent installation, more compression parts can be formed, forming multiple sealing parts, increasing the sealing area, and also ensuring the sealing effect. Preferably, in the axial direction of the sealing body 1, the inner grooves 12 and the outer grooves 13 are staggered, so that the wall thickness of the sealing body 1 will not be particularly thin in one place and particularly thick in another place, thereby ensuring the structural strength of the sealing body 1 itself and making the structural design more reasonable.

[0032] More specifically, chamfers 14 are provided on the outer edge and the inner edge of the end of the sealing body 1 away from the conical protrusion 11, that is, the edges of the outer wall and the inner wall of the end of the sealing body 1 where the conical protrusion 11 is not provided are chamfered 14, so that an empty space for avoiding deformation can be formed at the end of the sealing body 1 where the conical protrusion 11 is not provided, which facilitates the rapid deformation of the end of the sealing body 1 and meets the demand for rapid sealing of the end.

[0033] More specifically, the material of the sealing body 1 can be one of EPDM, FKM, and HNBR. When actually selecting, the sealing body 1 of a suitable material can be selected according to the actual use of the sealing ring, thereby further maintaining the durability of the sealing ring and extending the service life of the sealing ring.

[0034] More specifically, the material of the metal ring 2 embedded in the sealing body 1 is preferably stainless steel, and the hardness of the metal ring 2 is less than or equal to 200HV. At the same time, the hardness of the metal ring 2 is greater than 150HV, which can not only ensure the structural strength of the metal ring 2 and prevent the metal ring 2 from deforming when squeezed and affecting the supporting effect, but also maintain the chemical stability of the metal ring 2 itself, further extending the service life.

[0035] More specifically, after the metal ring 2 is embedded in the sealing body 1, the metal ring 2 is located on the outer side of the center line of the wall thickness of the sealing body 1. During installation, the plug connector 3 is usually inserted into the sealing ring first, and then the plug connector 3 with the sealing ring is inserted into the corresponding hole. As a result, the outer wall of the sealing ring is usually squeezed last, so that the outer wall of the sealing body 1 requires greater supporting force. Arranging the metal ring 2 on the outer side of the center line of the wall thickness of the sealing body 1 can increase the supporting capacity of the outer wall of the sealing body 1 and better meet the use requirements.

[0036] More specifically, the metal ring 2 is located at the end of the sealing body 1 where the conical protrusion 11 is provided. Since the conical protrusion 11 of the sealing ring is most likely to be deformed during installation, the metal ring 2 is arranged at the end close to the conical protrusion 11. This can prevent the sealing body 1 from being excessively deformed when the conical protrusion 11 is deformed and squeezed into the sealing body 1, thereby ensuring the sealing performance and making the structural design more reasonable.

[0037] The sealing ring structure with an embedded metal ring provided in the present embodiment includes a sealing body 1 and a metal ring 2; a metal ring 2 with a "Z"-shaped cross-section is embedded in the sealing body 1, and the metal ring 2 provides support for the sealing body 1, thereby improving the durability of the sealing ring and extending the service life of the sealing ring, and also preventing the sealing body 1 from being excessively deformed during extrusion and causing sealing failure, so that the sealing body 1 can fit the corresponding sealing surface more closely, with better sealing performance, lower leakage risk, and higher safety, avoiding the need for frequent inspection and replacement of the sealing ring, and reducing the workload of the staff. In addition, the metal ring 2 with a "Z"-shaped cross-section can better limit the movement of the metal ring 2 in the sealing body 1, so that the metal ring 2 and the sealing body 1 have better bonding, and also enhance the structural strength of the metal ring 2 itself, avoiding the problem of the metal ring 2 itself being squeezed and deformed, maintaining the support performance of the metal ring 2, and further ensuring the sealing effect.

[0038] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing ring structure with an embedded metal ring, characterized in that: Includes: A sealing body, wherein the sealing body is arranged in a cylindrical shape; A metal ring is embedded in the sealing body and is coaxially arranged with the sealing body. At the same time, the cross-section of the metal ring in the plane along the axial direction of the sealing body is arranged in a "Z" shape, and the two ends of the metal ring extend toward the two ends of the sealing body respectively.

2. The sealing ring structure with an embedded metal ring according to claim 1, characterized in that: One end of the sealing body is provided with a ring-shaped conical protrusion, and a distance is provided between the outer side wall of the conical protrusion and the outer side wall of the sealing body, and the inner side wall of the conical protrusion extends to the inner side wall of the sealing body.

3. The sealing ring structure with an embedded metal ring according to claim 2, characterized in that: The conical protrusion and the sealing body are an integrated structure.

4. The sealing ring structure with an embedded metal ring according to claim 1, characterized in that: The inner side wall of the sealing body is provided with a plurality of annular inner grooves.

5. The sealing ring structure with an embedded metal ring according to claim 4, characterized in that: A plurality of annular outer grooves are formed on the outer side wall of the sealing body, and in the axial direction of the sealing body, the inner grooves and the outer grooves are staggered.

6. The sealing ring structure with an embedded metal ring according to claim 2, characterized in that: The outer edge and the inner edge of the sealing body at one end away from the conical protrusion are both chamfered.

7. The sealing ring structure with an embedded metal ring according to claim 1, characterized in that: The sealing body is made of one of EPDM, FKM and HNBR.

8. The sealing ring structure with an embedded metal ring according to claim 1, characterized in that: The metal ring is made of stainless steel, and its hardness is less than or equal to 200 HV.

9. The sealing ring structure with an embedded metal ring according to claim 1, characterized in that: The metal ring is located on the outer side of the center line of the wall thickness of the sealing body.

10. The sealing ring structure with an embedded metal ring according to claim 2, characterized in that: The metal ring is located at one end of the sealing body where the conical protrusion is provided.

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