Mechanical sealing structure for pipeline connection

Abstract

The utility model discloses a mechanical sealing structure for pipeline connection, which relates to the technical field of sealing structures and comprises a first sealing element, a second sealing element, a sealing ring, a sealing groove, a sealing washer, a first sealing ring and a first sealing slot. The sealing rings of the first sealing element and the second sealing element are matched with the sealing grooves in the inner wall of the pipeline, so that the first sealing element, the second sealing element and the pipeline are quickly positioned, mounted and connected, and the first sealing ring and the first sealing insertion groove are matched to reinforce sealing treatment between the inner wall of the pipeline and the sealing rings; the sealing effect between the sealing ring and the pipeline can be effectively improved, and meanwhile the stability and convenience of connection between the sealing ring and the sealing groove can be improved; according to the device, the integrated sealing structure design is adopted, so that the pipeline and the sealing piece can be assembled or disassembled through one-time operation of the sealing structure, operation is rapid, and the sealing structure cannot be dislocated or deviated.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, specifically a mechanical seal structure for pipe connections. Background Technology

[0002] Common sealing structures mainly include: piston seals, mechanical seals, bellows seals, magnetic seals, and liquid seals. Mechanical seals refer to mechanical sealing components, such as mechanical seal rings and packing seals, which achieve sealing through mechanical friction; pipe connections generally use mechanical seals.

[0003] Patent (CN218208282U) discloses a pipe sealing connection structure, including a first pipe and a second pipe. The connecting pipe structure of this invention has a first flange and a second flange respectively provided at one end; the first flange and the second flange are symmetrically arranged about the pipe axis. This invention overcomes the shortcomings of the prior art. By setting the first flange and the second flange, the first pipe and the second pipe can be disassembled and separated by unscrewing the bolts. The damaged sealing ring can be removed from the sealing ring groove, and a new sealing ring can be placed into the matching sealing ring groove. Furthermore, by setting a pipe sealing ring and a rubber ring, the rubber ring being made of hydrogenated nitrile rubber material has good compression resistance and tear resistance, mitigating the impact force on the connected pipe caused by the creep of the composite pipeline due to bending or contraction under stress. The pipe sealing ring buffers the extrusion pressure, reducing the possibility of the flange sealing ring being subjected to extrusion and wear.

[0004] The pipe sealing connection structure in the aforementioned patent uses flange sealing rings, rubber rings, and pipe sealing rings for sealing between two pipes. During assembly and disassembly, multiple sealing rings need to be assembled or disassembled sequentially, which is quite cumbersome. Furthermore, if the installation position of one of the sealing rings is off, the sealing performance will be reduced. Utility Model Content

[0005] The purpose of this invention is to provide a mechanical seal structure for pipe connections to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mechanical seal structure for pipe connection, including a first pipe, a second pipe, a first sealing element, and a second sealing element. The first sealing element and the second sealing element are disposed between the first pipe and the second pipe. The outer walls of the first sealing element and the second sealing element are each provided with a sealing ring. The inner walls of the first pipe and the second pipe are each provided with a sealing groove that matches the sealing ring. One end of the outer wall of the sealing ring is provided with a sealing gasket, and the other end of the outer wall of the sealing ring is provided with a first sealing ring. The inner wall of the sealing groove is provided with a first sealing slot that matches the first sealing ring.

[0007] Furthermore, the outer wall of the sealing gasket of the first sealing member is provided with a plurality of first support rings from the inside to the outside on the side away from the sealing ring, the outer wall of the sealing gasket of the second sealing member is provided with a first annular groove that matches the first support ring, the outer wall of the sealing gasket of the first sealing member is provided with a plurality of second annular grooves from the inside to the outside on the side away from the sealing ring, and the outer wall of the sealing gasket of the second sealing member is provided with a second support ring that matches the second annular groove.

[0008] Furthermore, the first support ring and the second annular groove are staggered, and the cross-sections of the first support ring and the second support ring are both isosceles trapezoidal structures or regular polygonal structures.

[0009] Furthermore, the outer wall of the sealing gasket of the first sealing element is provided with a plurality of second sealing rings from the inside out on the side near the sealing ring, and the outer wall of the first pipe port is provided with a second sealing slot that matches the second sealing rings. The outer wall of the sealing gasket of the second sealing element is provided with a plurality of third sealing rings from the inside out on the side near the sealing ring, and the outer wall of the second pipe port is provided with a third sealing slot that matches the third sealing rings.

[0010] Furthermore, the second sealing ring is aligned with the second annular groove, and the third sealing ring is aligned with the first annular groove.

[0011] Furthermore, the cross-sections of the second and third sealing rings are both isosceles trapezoidal or regular polygonal structures.

[0012] Furthermore, the cross-section of the first sealing ring is either an isosceles trapezoid or a regular polygon.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] 1. This utility model, by setting a first sealing element, a second sealing element, a sealing ring, a sealing groove, a sealing gasket, a first sealing ring, and a first sealing slot, achieves rapid positioning and installation connection between the first and second sealing elements and the pipe by having the sealing rings of the first and second sealing elements cooperate with the sealing grooves on the inner wall of the pipe. Furthermore, the first sealing ring and the first sealing slot work together to reinforce the seal between the inner wall of the pipe and the sealing ring, effectively improving the sealing effect between the sealing ring and the pipe. This also enhances the stability and convenience of the connection between the sealing ring and the sealing groove. The two sealing gaskets of the first and second sealing elements work together to seal the gap between the two pipes, effectively ensuring sealing performance. This device adopts an integrated sealing structure design, allowing the assembly or disassembly of the pipe and the sealing element to be completed in a single operation, making the operation quick and preventing misalignment or displacement of the sealing structure.

[0015] 2. In this utility model, when the two sealing gaskets of the first and second sealing components are aligned and assembled, the first support ring is inserted into the first annular groove, and the second support ring is inserted into the second annular groove. This results in an interlocking cross-sectional distribution between the two sealing gaskets of the first and second sealing components, allowing for multiple sealing treatments between the two gaskets. This effectively improves the sealing effect between the two gaskets, thereby enhancing the sealing performance of the entire sealing structure. The second sealing ring is inserted into the second sealing slot at the first pipe port, and the third sealing ring is inserted into the third sealing slot at the second pipe port. This effectively provides multiple sealing treatments for the gaps between the sealing gaskets and the outer walls of the ports of the first and second pipes, further enhancing the sealing performance of the entire sealing structure. Simultaneously, it enables rapid positioning, assembly, and disassembly of the first sealing component with the first and second pipes, making the operation convenient and quick. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front sectional view of the entire utility model;

[0019] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a front sectional view of the first sealing element of this utility model;

[0021] Figure 5 This is a front sectional view of the second sealing element of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the first sealing element of this utility model.

[0023] In the diagram: 1. First pipe; 2. Second pipe; 3. First seal; 4. Second seal; 5. Sealing ring; 6. Sealing groove; 7. Sealing gasket; 8. First sealing ring; 9. First sealing slot; 10. First support ring; 11. First annular groove; 12. Second annular groove; 13. Second support ring; 14. Second sealing ring; 15. Second sealing slot; 16. Third sealing ring; 17. Third sealing slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a technical solution: a mechanical seal structure for a pipe connection, including a first pipe 1, a second pipe 2, a first sealing element 3, and a second sealing element 4. The first sealing element 3 and the second sealing element 4 are disposed between the first pipe 1 and the second pipe 2. Both the outer walls of the first sealing element 3 and the second sealing element 4 are provided with sealing rings 5. The inner walls of the first pipe 1 and the second pipe 2 are respectively provided with sealing grooves 6 that match the sealing rings 5. One end of the outer wall of the sealing ring 5 is provided with a sealing washer 7, and the other end of the outer wall of the sealing ring 5 is provided with a first sealing ring 8. The inner wall of the sealing groove 6 is provided with a first sealing slot 9 that matches the first sealing ring 8. The outer wall of the sealing washer 7 of the first sealing element 3, away from the sealing ring 5, is provided with a plurality of first support rings 10 from the inside out. The second sealing element... The outer wall of the sealing gasket 7 of the first sealing member 4 is provided with a first annular groove 11 that matches the first support ring 10. The outer wall of the sealing gasket 7 of the first sealing member 3 is provided with a plurality of second annular grooves 12 from the inside to the outside on the side away from the sealing ring 5. The outer wall of the sealing gasket 7 of the second sealing member 4 is provided with a second support ring 13 that matches the second annular groove 12. The outer wall of the sealing gasket 7 of the first sealing member 3 is provided with a plurality of second sealing rings 14 from the inside to the outside on the side close to the sealing ring 5. The outer wall of the port of the first pipe 1 is provided with a second sealing slot 15 that matches the second sealing ring 14. The outer wall of the sealing gasket 7 of the second sealing member 4 is provided with a plurality of third sealing rings 16 from the inside to the outside on the side close to the sealing ring 5. The outer wall of the port of the second pipe 2 is provided with a third sealing slot 17 that matches the third sealing ring 16.

[0026] In one embodiment, the first support ring 10 and the second annular groove 12 are staggered, so that the mating connection between the first support ring 10 and the first annular groove 11 and the mating connection between the second support ring 13 and the second annular groove 12 are staggered, which can effectively improve the sealing performance between the first seal 3 and the second seal 4. The cross-sections of the first support ring 10 and the second support ring 13 are both isosceles trapezoidal structures or regular polygonal structures. The cross-sectional shape of the first support ring 10 and the second support ring 13 is defined, and each corner of the cross-section of the first support ring 10 and the second support ring 13 can serve as a primary sealing connection, so that the sealing of the first support ring 10 and the second support ring 13 presents a multi-level sealing treatment, which can effectively improve the sealing performance of the equipment.

[0027] In one embodiment, the second sealing ring 14 is aligned with the second annular groove 12, so that after the second support ring 13 is inserted into the second annular groove 12, the second sealing ring 14 can be effectively pushed outward, thereby effectively enhancing the sealing performance of the second sealing ring 14; the third sealing ring 16 is aligned with the first annular groove 11, so that after the first support ring 10 is inserted into the first annular groove 11, the third sealing ring 16 can be effectively pushed outward, thereby effectively enhancing the sealing performance of the third sealing ring 16 and effectively improving the sealing performance of the equipment.

[0028] In one embodiment, the cross-sections of the second sealing ring 14 and the third sealing ring 16 are both isosceles trapezoidal structures or regular polygonal structures. By defining the cross-sectional shape of the second sealing ring 14 and the third sealing ring 16, each corner of the cross-section of the second sealing ring 14 and the third sealing ring 16 can serve as a primary sealing connection point, so that the sealing points of the second sealing ring 14 and the third sealing ring 16 present multi-level sealing treatment, which can effectively improve the sealing performance of the equipment.

[0029] In one embodiment, the cross-section of the first sealing ring 8 is either an isosceles trapezoid or a regular polygon. By defining the cross-sectional shape of the first sealing ring 8, each corner of the cross-section of the first sealing ring 8 can serve as a primary sealing connection, thus making the sealing of the first sealing ring 8 present a multi-level sealing treatment, which can effectively improve the sealing performance of the equipment.

[0030] The working principle of this utility model:

[0031] Refer to the instruction manual appendix Figures 1-6This utility model, by setting a first sealing element 3, a second sealing element 4, a sealing ring 5, a sealing groove 6, a sealing gasket 7, a first sealing ring 8, and a first sealing slot 9, assembles the first sealing element 3 inside the first pipe 1 before connecting the first pipe 1 and the second pipe 2. The sealing ring 5 of the first sealing element 3 is placed inside the sealing groove 6 of the first pipe 1, and the first sealing ring 8 on the outer wall of the sealing ring 5 is inserted into the first sealing slot 9. The sealing gasket 7 is located outside the port of the first pipe 1, thus assembling the first sealing element 3 inside the first pipe 1. Then, the second sealing element 4 is placed inside the second pipe 2. The sealing ring 5 of the second sealing element 4 is placed inside the sealing groove 6 of the second pipe 2, and the first sealing ring 8 on the outer wall of the sealing ring 5 is inserted into the first sealing slot 9. The sealing gasket 7 is located outside the port of the second pipe 2, thus assembling the second sealing element 4 inside the second pipe 2. Finally, the sealing elements 3 and 4 are sealed together. With the gaskets 7 aligned and tightly fitted, the bolts on the flanges of the first pipe 1 and the second pipe 2 are tightened. Under the tightening force of the bolts, the sealing gaskets 7 of the first sealing element 3 and the second sealing element 4 are squeezed and tightly fitted to seal. The sealing rings 5 ​​of the first sealing element 3 and the second sealing element 4 cooperate with the sealing grooves 6 on the inner wall of the pipe, realizing the quick positioning and installation connection of the first sealing element 3 and the second sealing element 4 with the pipe. The first sealing ring 8 and the first sealing slot 9 cooperate to strengthen the sealing treatment between the inner wall of the pipe and the sealing ring 5, which can effectively improve the sealing effect between the sealing ring 5 and the pipe, and at the same time improve the stability and convenience of the connection between the sealing ring 5 and the sealing groove 6. The two sealing gaskets of the first sealing element 3 and the second sealing element 4 cooperate to seal the gap between the two pipes, which can effectively ensure the sealing performance. This device adopts an integrated sealing structure design, which allows the sealing structure to complete the assembly or disassembly of the pipe and the sealing element in one operation. The operation is quick and the sealing structure will not be misaligned or shifted.

[0032] When the two sealing gaskets 7 of the first sealing element 3 and the second sealing element 4 are aligned and assembled, the first support ring 10 is inserted into the first annular groove 11, and the second support ring 13 is inserted into the second annular groove 12. This results in an interlocking cross-sectional distribution between the two sealing gaskets 7 of the first sealing element 3 and the second sealing element 4, which allows for multiple sealing treatments between the two sealing gaskets 7. This effectively improves the sealing effect between the two sealing gaskets 7, thereby improving the sealing performance of the entire sealing structure.

[0033] When the first sealing element 3 is assembled onto the first pipe 1, the second sealing ring 14 on the outer wall of the sealing gasket 7 of the first sealing element 3 is inserted into the second sealing slot 15 at the port of the first pipe 1. This effectively provides multiple sealing treatments for the gap between the sealing gasket 7 of the first sealing element 3 and the outer wall of the port of the first pipe 1, thereby effectively improving the sealing performance of the entire sealing structure. Simultaneously, the combined use of the second sealing ring 14 and the second sealing slot 15 enables quick positioning, assembly, and disassembly of the first sealing element 3 and the first pipe 1, making the operation convenient and quick. When the second sealing element 4 is assembled onto the second pipe 2, the third sealing ring 16 on the outer wall of the sealing gasket 7 of the second sealing element 4 is inserted into the third sealing slot 17 at the port of the second pipe 2. This effectively provides multiple sealing treatments for the gap between the sealing gasket 7 of the second sealing element 4 and the outer wall of the port of the second pipe 2, thereby effectively improving the sealing performance of the entire sealing structure. Simultaneously, the combined use of the third sealing ring 16 and the third sealing slot 17 enables quick positioning, assembly, and disassembly of the second sealing element 4 and the second pipe 2, making the operation convenient and quick.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mechanical seal structure for a pipe connection, comprising a first pipe (1), a second pipe (2), a first seal (3), and a second seal (4), characterized in that: The first sealing element (3) and the second sealing element (4) are disposed between the first pipe (1) and the second pipe (2). The outer walls of the first sealing element (3) and the second sealing element (4) are provided with sealing rings (5). The inner walls of the first pipe (1) and the second pipe (2) are respectively provided with sealing grooves (6) that match the sealing rings (5). One end of the outer wall of the sealing ring (5) is provided with a sealing gasket (7), and the other end of the outer wall of the sealing ring (5) is provided with a first sealing ring (8). The inner wall of the sealing groove (6) is provided with a first sealing slot (9) that matches the first sealing ring (8).

2. The mechanical seal structure for a pipe connection according to claim 1, characterized in that: The outer wall of the sealing gasket (7) of the first sealing member (3) is provided with a plurality of first support rings (10) from the inside out on the side away from the sealing ring (5). The outer wall of the sealing gasket (7) of the second sealing member (4) is provided with a first annular groove (11) that matches the first support ring (10). The outer wall of the sealing gasket (7) of the first sealing member (3) is provided with a plurality of second annular grooves (12) from the inside out on the side away from the sealing ring (5). The outer wall of the sealing gasket (7) of the second sealing member (4) is provided with a second support ring (13) that matches the second annular groove (12).

3. The mechanical seal structure for a pipe connection according to claim 2, characterized in that: The first support ring (10) and the second annular groove (12) are staggered, and the cross-sections of the first support ring (10) and the second support ring (13) are both isosceles trapezoidal structures or regular polygonal structures.

4. The mechanical seal structure for a pipe connection according to claim 2, characterized in that: The outer wall of the sealing gasket (7) of the first sealing member (3) is provided with a plurality of second sealing rings (14) from the inside out on the side near the sealing ring (5). The outer wall of the first pipe (1) port is provided with a second sealing slot (15) that matches the second sealing ring (14). The outer wall of the sealing gasket (7) of the second sealing member (4) is provided with a plurality of third sealing rings (16) from the inside out on the side near the sealing ring (5). The outer wall of the second pipe (2) port is provided with a third sealing slot (17) that matches the third sealing ring (16).

5. The mechanical seal structure for a pipe connection according to claim 4, characterized in that: The second sealing ring (14) is aligned with the second annular groove (12), and the third sealing ring (16) is aligned with the first annular groove (11).

6. The mechanical seal structure for a pipe connection according to claim 4, characterized in that: The cross-sections of the second sealing ring (14) and the third sealing ring (16) are both isosceles trapezoidal structures or regular polygonal structures.

7. The mechanical seal structure for a pipe connection according to claim 1, characterized in that: The cross-section of the first sealing ring (8) is either an isosceles trapezoidal structure or a regular polygonal structure.

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