CN213420188U - Double-layer internal expansion type sealing ring and sealing structure - Google Patents
Double-layer internal expansion type sealing ring and sealing structure Download PDFInfo
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- CN213420188U CN213420188U CN202022125694.5U CN202022125694U CN213420188U CN 213420188 U CN213420188 U CN 213420188U CN 202022125694 U CN202022125694 U CN 202022125694U CN 213420188 U CN213420188 U CN 213420188U
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Abstract
The application relates to a double-layer internal expansion type sealing ring and a sealing structure, wherein the double-layer internal expansion type sealing ring comprises an internal expansion type sealing ring and an inflatable sealing ring, the internal expansion type sealing ring is composed of a rubber sealing band ring and an internal expansion steel ring, and the internal expansion type sealing ring and the inflatable sealing ring are connected through a connecting piece. This application has when the pipeline is in low temperature environment, and pipeline temperature reduces and contracts, and the sealing washer still can reach sealed effect.
Description
Technical Field
The application relates to the field of sealing ring technology, in particular to a double-layer internal expansion type sealing ring and a sealing structure.
Background
In the transportation process of gas or liquid, a water pipe is needed, the water pipe is used by connecting one water-saving pipe with another water-saving pipe, but when the water pipe is connected with the water pipe, a certain gap is generated. Therefore, a sealing ring is required to be installed at the joint, and the sealing ring can fill up the gap through the characteristic of easy deformation of the sealing ring, so that the sealing effect between the water pipes is achieved.
In the related art, a sealing ring 12 as shown in fig. 1 may be used for sealing a connection between pipes, and the sealing ring 12 is installed between the connection portions of two pipes to fill a gap between the two pipes, thereby achieving sealing.
In view of the above-mentioned related art, the inventor believes that when the pipeline is in a low-temperature environment, the pipeline temperature is reduced and shrinks, so that the gap at the pipeline joint is increased, and the sealing ring cannot effectively play a sealing role.
SUMMERY OF THE UTILITY MODEL
In order to seal the ring when low temperature environment, still can play good sealed effect, this application provides a double-deck internal expanding formula sealing washer and seal structure.
First aspect, the application provides a double-deck internal expanding formula sealing washer, adopts following technical scheme:
the double-layer internal expansion type sealing ring comprises an internal expansion type sealing ring and an inflatable sealing ring, wherein the internal expansion type sealing ring comprises an internal expansion steel ring and a rubber sealing band ring, the internal expansion steel ring is arranged in the rubber sealing band ring and is tightly attached to the inner wall of the rubber sealing band ring, the inflatable sealing ring and the internal expansion type sealing ring are coaxially arranged on the same plane, and a connecting piece is connected between the internal expansion type sealing ring and the inflatable sealing ring.
Through adopting above-mentioned technical scheme, first body is connected with the second body, and the sealed effectual because of the existence of internal expanding formula structure of internal expanding sealing washer to plug up the space of first body and second body junction. When the pipeline is in a low-temperature environment, the inflatable sealing ring is squeezed and compressed in the inner circular ring cavity or the outer circular ring cavity, the gap between the inner circular ring cavity and the outer circular ring cavity is increased, the inflatable sealing ring expands along with the inflatable sealing ring, the outer wall of the inflatable sealing ring is still tightly attached to the inner wall of the inner circular ring cavity or the inner wall of the outer circular ring cavity, the gap is timely plugged, and the pipeline is sealed.
Optionally, the circumferential diameter of the inflatable sealing ring is smaller than that of the internal expansion type sealing ring.
By adopting the technical scheme, when the double-layer internal expansion type sealing ring is arranged at the joint of the water pipe, the water pipe is laid at the water bottom, and the internal expansion type sealing ring reduces water from entering the water pipe from the outside to a certain extent.
Optionally, the circumferential diameter of the inflatable sealing ring is larger than that of the internal expansion type sealing ring.
Through adopting above-mentioned technical scheme, when double-deck internal expanding sealing washer was installed in water piping connection department, the water pipe was laid on ground, and internal expanding sealing washer reduces water to a certain extent and flows out from the water pipe.
Optionally, the connecting piece is a rod body, the rod body is arranged in a circle between the internal expansion type sealing ring and the inflatable sealing ring, and the circle center of the internal expansion type sealing ring of the rod body is arranged in a radial direction.
Through adopting above-mentioned technical scheme, the body of rod is connected internal expanding sealing washer and inflatable seal circle.
Optionally, the connecting piece is a connecting ring, the inner circular side wall of the connecting ring is connected with the internal expansion type sealing ring, and the outer circular side wall of the connecting ring is connected with the inflatable sealing ring.
By adopting the technical scheme, the connecting ring connects the internal expansion type sealing ring and the inflatable sealing ring.
In a second aspect, the present application provides a sealing structure, which adopts the following technical solution:
the utility model provides a sealing structure, its includes foretell double-deck internal expanding sealing washer, still includes first body and second body, first outer circular ring groove and first interior circular groove have been seted up to first body terminal surface, second body terminal surface is seted up the second outer circular ring groove relative with first outer circular ring groove and is seted up the second interior circular groove relative with first interior circular groove, first outer circular ring groove and second outer circular ring groove can splice into outer circular ring chamber, outer circular ring chamber is used for placing of internal expanding sealing washer, first interior circular ring groove and second interior circular ring chamber can splice into interior circular ring chamber, interior circular ring chamber is used for placing of inflatable seal circle, circular ring chamber diameter is less than inflatable seal circle's diameter, the mounting groove that is used for holding the connecting piece is still offered to the junction of first body and second body.
Through adopting above-mentioned technical scheme, when first body and second body are connected and are placed in the aquatic, the sealed effectual of internal expanding sealing washer because of the existence of internal expanding structure, make the outer water of first body and second body can not flow into in first body and the second body. Because the inflatable seal ring is squeezed and compressed in the inner circular cavity, when the pipeline is in a low-temperature environment, the gap of the inner circular cavity is increased, the inflatable seal ring expands along with the gap, the outer wall of the inflatable seal ring is still tightly attached to the inner wall of the inner circular cavity, a gap is timely plugged, and the pipeline is sealed.
In a third aspect, the present application provides another sealing structure, which adopts the following technical solution:
the utility model provides a sealing structure, its includes foretell double-deck internal expanding sealing washer, still includes first body and second body, first outer circular ring groove and first interior circular groove have been seted up to first body terminal surface, second body terminal surface is seted up the second outer circular ring groove relative with first outer circular ring groove and is seted up the second interior circular groove relative with first interior circular groove, first outer circular ring groove and second outer circular ring groove can splice into outer circular ring chamber, outer circular ring chamber is used for placing of inflatable seal circle, outer circular ring chamber diameter is less than inflatable seal circle's diameter, first interior circular ring chamber and second interior circular ring chamber can splice into interior circular ring chamber, interior circular ring chamber is used for placing of internal expanding sealing circle, the mounting groove that is used for holding the connecting piece is still offered to the junction of first body and second body.
Through adopting above-mentioned technical scheme, when first body and second body are connected and place subaerial, the sealed effectual of internal expanding sealing washer because of the existence of internal expanding structure, make the water in first body and the second body can not flow out outside first body and the second body. Because the inflatable seal ring is squeezed and compressed in the outer circular cavity, when the pipeline is in a low-temperature environment, the gap of the outer circular cavity is increased, the inflatable seal ring expands along with the gap, the outer wall of the inflatable seal ring is still tightly attached to the inner wall of the outer circular cavity, the gap is timely plugged, and the pipeline is sealed.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the inner expansion type sealing ring and the inflatable sealing ring are connected and matched for use, double sealing is realized, the sealing effect of the inner expansion type sealing ring with the inner expansion type structure is good, the inflatable sealing ring is squeezed and compressed in an outer circular cavity or an inner circular cavity, and when the temperature is reduced and the gap at the joint of the pipe body is increased, the inflatable sealing ring is expanded to block the gap;
2. the internal and external arrangement of the internal expansion type sealing ring and the inflatable sealing ring can meet the sealing performance of the water pipe in water and on different conditions on the ground.
Drawings
Fig. 1 is a schematic structural view of a seal ring in the related art;
FIG. 2 is a schematic structural view of a double-layer internal expansion type seal ring according to embodiment 1 of the present application;
FIG. 3 is a cross-sectional view of a double-layer internal expansion type seal ring according to example 1 of the present application;
FIG. 4 is a schematic structural view of a double-layer internal expansion type seal ring in embodiment 2 of the present application;
FIG. 5 is a sectional view of a double-layer internal expansion type seal ring according to example 2 of the present application;
FIG. 6 is a schematic structural view of a double-layer internal expansion type seal ring according to embodiment 3 of the present application;
FIG. 7 is a sectional view of a double-layered internal expansion type seal ring according to example 3 of the present application;
FIG. 8 is a schematic structural view of a double-layer internal expansion type seal ring according to embodiment 4 of the present application;
FIG. 9 is a sectional view of a double-layer internal expansion type seal ring according to example 4 of the present application;
FIG. 10 is a schematic structural view of a seal structure in embodiment 5 of the present application;
fig. 11 is a schematic structural view of a seal structure in embodiment 6 of the present application.
Description of reference numerals: 1. an internal expansion type sealing ring; 2. an inflatable seal ring; 3. an inner expanding steel ring; 4. a rubber sealing band ring; 5. a connecting member; 6. a rod body; 7. a connecting ring; 8. a first pipe body; 81. a first outer circular ring groove; 82. a first inner circular groove; 9. a second tube body; 91. a second outer annular groove; 92. a second inner circular groove; 10. a third circular groove; 11. a fourth circular groove; 12. and (5) sealing rings.
Detailed Description
The present application is described in further detail below with reference to figures 2-11.
Example 1
The embodiment of the application discloses double-deck internal expanding sealing washer, refer to fig. 2 and 3, double-deck internal expanding sealing washer includes internal expanding sealing washer 1 and inflatable seal ring 2, and internal expanding sealing washer 1 includes internal expanding steel ring 3 and rubber seal area circle 4, and inflatable seal ring 2 is made with the silicon rubber, has good elasticity, and inside cavity just is filled with gas. The internal expansion type sealing ring 1 and the inflatable sealing ring 2 are coaxially arranged, the circumferential diameter of the internal expansion type sealing ring 1 is smaller than that of the inflatable sealing ring 2, and the internal expansion type sealing ring 1 is connected with the inflatable sealing ring 2 through a connecting piece 5. The connecting piece 5 is a rod body 6, and the rod body 6 is made of rubber and is cylindrical. In some examples, the rod body 6 is thermally fused to the surfaces of the internal expanding seal ring 1 and the gas-filled seal ring 2. In some examples, the stem 6 is integrally formed with the inflatable gasket 1 and the inflatable gasket 2.
Example 2
Referring to fig. 4 and 5, the present embodiment 2 is different from the present embodiment 1 in that: the connecting piece 5 is a connecting ring 7, and the connecting ring 7 is made of rubber and is in a circular disc shape. In some examples, the connection ring 7 is heat-fused to the surfaces of the internal expanding seal ring 1 and the gas-filled seal ring 2. In some examples, the connection ring 7 is integrally formed with the inflatable seal ring 2 and the internal expanding seal ring 1.
Example 3
Referring to fig. 6 and 7, the present embodiment 3 is different from embodiment 1 in that: the circumferential diameter of the internal expansion type sealing ring 1 is larger than that of the inflatable sealing ring 2, the internal expansion type sealing ring 1 is arranged on the outer circumferential direction of the inflatable sealing ring 2, and the internal expansion type sealing ring 1 and the inflatable sealing ring 2 are coaxially arranged.
Example 4
Referring to fig. 8 and 9, the present embodiment 4 is different from the present embodiment 2 in that: the circumferential diameter of the internal expansion type sealing ring 1 is larger than that of the inflatable sealing ring 2, the internal expansion type sealing ring 1 is arranged on the outer circumferential direction of the inflatable sealing ring 2, and the internal expansion type sealing ring 1 and the inflatable sealing ring 2 are coaxially arranged.
Example 5
The embodiment of the application also discloses a sealing structure, and the sealing structure is assembled along the direction of a dotted line in the figure as shown in figure 10. The end surface of the first pipe body 8 is provided with a first outer circular ring groove 81 and a first inner circular ring groove 82, and the end surface of the second pipe body 9 is provided with a second outer circular ring groove 91 opposite to the first outer circular ring groove 81 and a second inner circular ring groove 92 opposite to the first inner circular ring groove 82. The cross sections of the first outer circular ring groove 81, the first inner circular ring groove 82, the second outer circular ring groove 91, and the second inner circular ring groove 92 in the assembling direction are all semicircles. The first outer circular ring groove 81 and the second outer circular ring groove 91 are spliced to form an outer circular ring cavity, the outer circular ring cavity is used for placing the internal expansion type sealing ring 1, the first inner circular ring groove 82 and the second inner circular ring groove 92 are spliced to form an inner circular ring cavity, the inner circular ring cavity is used for placing the inflatable sealing ring 2, and the outer circular ring cavity and the inner circular ring cavity are coaxially arranged. Third annular groove 10 has been seted up to 8 terminal surfaces of first body, and the fourth annular groove 11 relative with third annular groove 10 is seted up to 9 terminal surfaces of second body, and third annular groove 10 and the concatenation of fourth annular groove 11 can form the mounting groove that supplies the body of rod 6 to install.
The implementation principle of the embodiment 5 is as follows: when placing in aqueous after first body 8 and the installation of second body 9, place double-deck internal expanding sealing washer in first body 8 and the 9 junctions of second body, internal expanding sealing washer 1 is because the existence of internal expanding structure, and is sealed effectual, and it is inside that certain degree reduces outside water and enters into first body 8 and second body 9. When the temperature reduces, first body 8 and second body 9 shorten, make first body 8 and the increase of second body 9 junction gap, and the solid construction of internal expanding sealing washer 1 leads to its deformation less, and the gap of excircle ring chamber is great, leads to the easy leakage of the gap increase in internal expanding sealing washer 1 and excircle ring chamber. And because inflatable seal ring 2 receives the extrusion compression in interior ring chamber, when the gap increase in interior ring chamber, inflatable seal ring 2 expands thereupon, and the outer wall of inflatable seal ring 2 still closely laminates with interior ring chamber inner wall, consequently still can keep better leakproofness.
Example 6
A sealing structure, embodiment 6 differs from embodiment 5 in that: referring to fig. 11, the sealing structure is assembled in a direction of a dotted line in the drawing. The outer circular cavity 10 is used for placing the inflatable sealing ring 2, and the inner circular cavity 11 is used for placing the internal expansion type sealing ring 1.
The implementation principle of the embodiment 6 is as follows: when placing subaerial after first body 8 and the installation of second body 9, place double-deck internal expanding sealing washer in seal structure, internal expanding sealing washer 1 is because the existence of internal expanding structure, and is sealed effectual, prevents the rivers play in first body 8 and the second body 9. When the temperature is reduced, the first pipe body 8 and the second pipe body 9 shrink, so that the gap at the joint of the first pipe body 8 and the second pipe body 9 is increased, the solid structure of the internal expansion type sealing ring 1 causes the deformation to be smaller, and the gap of the internal circular cavity is larger, so that the gap between the internal expansion type sealing ring 1 and the internal circular cavity is increased and easy to leak. And because the inflatable sealing ring 2 is squeezed and compressed in the outer circular cavity, when the gap of the outer circular cavity is increased, the inflatable sealing ring 2 expands along with the gap, the outer wall of the inflatable sealing ring 2 is still tightly attached to the inner wall of the outer circular cavity, and therefore better sealing performance can still be kept.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a double-deck internal expanding formula sealing washer which characterized in that: the sealing device comprises an internal expansion type sealing ring (1) and an inflatable sealing ring (2), wherein the internal expansion type sealing ring (1) comprises an internal expansion steel ring (3) and a rubber sealing band ring (4), the internal expansion steel ring (3) is arranged in the rubber sealing band ring (4) and is tightly attached to the inner wall of the rubber sealing band ring (4), the inflatable sealing ring (2) and the internal expansion type sealing ring (1) are coaxially arranged on the same plane, and a connecting piece (5) is connected between the internal expansion type sealing ring (1) and the inflatable sealing ring (2).
2. The double-layer internal expanding seal ring according to claim 1, wherein: the circumferential diameter of the inflatable sealing ring (2) is smaller than that of the internal expansion type sealing ring (1).
3. The double-layer internal expanding seal ring according to claim 1, wherein: the circumferential diameter of the inflatable sealing ring (2) is larger than that of the internal expansion type sealing ring (1).
4. The double-layer internal expanding seal ring according to claim 1, wherein: the connecting piece (5) is the body of rod (6), the body of rod (6) is the circumference array between formula sealing washer (1) that rises including and inflatable seal ring (2), and the body of rod (6) are radial setting in the centre of a circle of formula sealing washer (1) that rises within the scope.
5. The double-layer internal expanding seal ring according to claim 1, wherein: the connecting piece (5) is a connecting ring (7), the inner circular side wall of the connecting ring (7) is connected with the internal expansion type sealing ring (1), and the outer circular side wall of the connecting ring (7) is connected with the inflatable sealing ring (2).
6. A seal structure comprising the double-layer internal expansion type seal ring according to claim 2, wherein: the pipe is characterized by further comprising a first pipe body (8) and a second pipe body (9), wherein a first outer circular groove (81) and a first inner circular groove (82) are formed in the end face of the first pipe body (8), the end surface of the second pipe body (9) is provided with a second outer circular ring groove (91) opposite to the first outer circular ring groove (81) and a second inner circular ring groove (92) opposite to the first inner circular ring groove (82), the first outer circular ring groove (81) and the second outer circular ring groove (91) can be spliced into an outer circular ring cavity, the outer circular cavity is used for placing the internal expansion type sealing ring (1), the first inner circular groove (82) and the second inner circular groove (92) can be spliced into an inner circular cavity, the inner circular cavity is used for placing the inflatable sealing ring (2), the diameter of the inner circular cavity is smaller than that of the inflatable sealing ring (2), the junction of first body (8) and second body (9) still offers the mounting groove that is used for holding connecting piece (5).
7. A seal structure comprising the double-layer internal expansion type seal ring according to claim 3, wherein: the pipe is characterized by further comprising a first pipe body (8) and a second pipe body (9), wherein a first outer circular groove (81) and a first inner circular groove (82) are formed in the end face of the first pipe body (8), the end surface of the second pipe body (9) is provided with a second outer circular ring groove (91) opposite to the first outer circular ring groove (81) and a second inner circular ring groove (92) opposite to the first inner circular ring groove (82), the first outer circular ring groove (81) and the second outer circular ring groove (91) can be spliced into an outer circular ring cavity, the outer circular cavity is used for placing the inflatable sealing ring (2), the diameter of the outer circular cavity is smaller than that of the inflatable sealing ring (2), the first inner circular groove (82) and the second inner circular groove (92) can be spliced into an inner circular cavity, the inner circular cavity is used for placing the inner expansion type sealing ring (1), and a mounting groove used for accommodating the connecting piece (5) is further formed in the joint of the first pipe body (8) and the second pipe body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022125694.5U CN213420188U (en) | 2020-09-24 | 2020-09-24 | Double-layer internal expansion type sealing ring and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022125694.5U CN213420188U (en) | 2020-09-24 | 2020-09-24 | Double-layer internal expansion type sealing ring and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213420188U true CN213420188U (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022125694.5U Active CN213420188U (en) | 2020-09-24 | 2020-09-24 | Double-layer internal expansion type sealing ring and sealing structure |
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| Country | Link |
|---|---|
| CN (1) | CN213420188U (en) |
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- 2020-09-24 CN CN202022125694.5U patent/CN213420188U/en active Active
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