Tooth-shaped high-pressure anti-seepage sealing ring

Abstract

The utility model relates to a sealing ring, in particular to a tooth-shaped high-pressure anti-seepage sealing ring which comprises a sealing ring sleeve, and an extrusion mechanism is arranged on the sealing ring sleeve. The extrusion mechanism comprises air bags, the air bags are evenly arranged on the surface of the sealing ring sleeve, and the air bags are used for compressing a body when being stressed, so that the trend of expanding outwards is generated, gaps between every two air bags are filled, and therefore radial anti-seepage sealing is completed. The air bags are arranged on the surface of the sealing ring sleeve, the inner shaft is used for extruding the sealing ring, when the inner shaft makes contact with the air bags on the sealing ring for extrusion, the air bags can be extruded to expand, and therefore the air bags are sealed in the radial direction. When the air bags are extruded, compressed and expanded, the two adjacent air bags can be better matched through the formed extrusion grooves, and therefore the sealing effect can be better.

Description

Technical Field

[0001] The utility model relates to a sealing ring, in particular to a tooth-shaped high-pressure anti-seepage sealing ring. Background Art

[0002] Toothed seals are seals used in hydraulic and pneumatic systems. They are typically made from a low-friction material such as polytetrafluoroethylene (PTFE) and an O-ring. They are wear-resistant, heat-resistant, and pressure-resistant, making them suitable for use in industries such as aviation, metallurgy, petroleum, and chemicals. Toothed seals can also be made from a metal core and flexible graphite or PTFE, for sealing in high-temperature and high-pressure environments.

[0003] When used on a shaft, the toothed seal ring can also be called an oil seal to prevent the lubricating oil applied to the shaft from leaking, so that the lubricating oil between the shaft and the seal ring is better sealed, thereby ensuring that the rotation of the shaft can have a longer life and stability.

[0004] The connection between the existing toothed seal ring and the shaft is generally to insert the shaft into the seal ring from the axial direction, that is, to put the seal ring on the shaft. The connection of the seal ring on the shaft is often to squeeze the seal ring through the shaft. The seal ring between the inner shaft and the outer shaft is squeezed, thereby limiting the leakage of lubricating oil.

[0005] However, the sealing method of this sealing ring is to squeeze the sealing ring by the inner shaft and the outer shaft to seal, and an extrusion seal is obtained in the axial direction. This sealing method has certain limitations and does not obtain a good seal in the radial direction. Utility Model Content

[0006] The purpose of the utility model is to provide a tooth-shaped high-pressure anti-seepage sealing ring to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A tooth-shaped high-pressure anti-seepage sealing ring, a tooth-shaped high-pressure anti-seepage sealing ring, characterized in that the tooth-shaped high-pressure anti-seepage sealing ring comprises a sealing ring sleeve, and the sealing ring sleeve is provided with an extrusion mechanism;

[0009] The squeezing mechanism includes airbags, which are evenly arranged on the surface of the sealing ring. When the airbags are subjected to pressure, they compress the body, thereby generating a tendency to expand outward, filling the gaps between the airbags, and thus completing radial anti-seepage sealing.

[0010] The toothed high-pressure anti-seepage sealing ring as described above: an alignment groove is provided on the surface of the sealing ring sleeve, and the alignment groove facilitates the axial connection of the connecting piece.

[0011] The toothed high-pressure anti-seepage sealing ring as described above: a plurality of alignment grooves are provided, and the alignment grooves are distributed on the inner and outer sides of the airbag.

[0012] The toothed high-pressure anti-seepage sealing ring as described above: the sealing ring sleeve is further provided with extrusion grooves, and the extrusion grooves are distributed near the two air bags.

[0013] The toothed high-pressure anti-seepage sealing ring as described above: the number of the airbags is designed to be multiple, and the number of the extrusion grooves is one less than the number of the airbags.

[0014] The tooth-shaped high-pressure anti-seepage sealing ring as described above: the interior of the airbag is designed to be a hollow cavity structure, and the interior of the airbag is pre-filled with air at normal pressure.

[0015] The toothed high-pressure anti-seepage sealing ring as described above: the depth of the extrusion groove is lower than the depth of the alignment groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a plurality of airbags on the surface of the sealing ring, and utilizes the inner shaft to squeeze the sealing ring. When the inner shaft contacts and squeezes the airbags on the sealing ring, the airbags will be squeezed to expand, so that the two adjacent airbags will expand to fit together, thereby achieving a seal in the radial direction. The present invention also provides a plurality of extrusion grooves on the surface of the sealing ring. When the airbags are squeezed, compressed and expanded, the extrusion grooves will make the two adjacent airbags fit better, thereby achieving a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the tooth-shaped high-pressure anti-seepage sealing ring.

[0018] Figure 2 It is a structural diagram of the sealing ring sleeve in the tooth-shaped high-pressure anti-seepage sealing ring.

[0019] Figure 3 It is a schematic diagram of the structure of the airbag in the tooth-shaped high-pressure anti-seepage sealing ring.

[0020] Figure 4 It is a cross-sectional view of the overall structure of the toothed high-pressure anti-seepage sealing ring.

[0021] Figure 5 It is a structural cross-sectional view of the airbag in the tooth-shaped high-pressure anti-seepage sealing ring.

[0022] In the figure: 1. Sealing ring; 101. Alignment groove; 102. Extrusion groove; 2. Airbag. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-Figure 5 As an embodiment of the present invention, the toothed high-pressure anti-seepage sealing ring comprises a sealing ring sleeve 1, on which an extrusion mechanism is provided;

[0025] The squeezing mechanism includes airbags 2, which are evenly arranged on the surface of the sealing ring 1. When the airbags 2 are subjected to pressure, they compress the body, thereby generating a tendency to expand outward, filling the gaps between the airbags 2, thereby completing radial anti-seepage sealing.

[0026] In this embodiment, multiple airbags 2 are evenly arranged on the surface of the sealing ring sleeve 1. When the sealing ring is needed for sealing, it will be subjected to extrusion force in the axial direction, and the shaft will squeeze the airbag 2, so that the airbag 2 is compressed. After the interior of the airbag 2 is compressed, the airbag 2 will expand outward. When two adjacent airbags 2 are compressed, the edges of the airbags 2 will fit tightly together, so that they will be sealed in the radial direction.

[0027] As a further solution of the present invention, an alignment groove 101 is provided on the surface of the sealing ring 1, and the alignment groove 101 facilitates the axial connection of the connecting piece.

[0028] In this embodiment, an alignment groove 101 is provided on the surface of the sealing ring 1 corresponding to the connection with the airbag 2. When the two shafts are connected, the two shafts are first aligned and inserted into the interior of the sealing ring relative to each other. The ridges provided on the shafts correspond to the alignment groove 101, so that the connection between the shafts and the sealing ring 1 is more consistent, thereby forming an oil seal to prevent the leakage of lubricating oil in the middle and ensure better lubrication of the shafts.

[0029] As a further solution of the present invention, a plurality of alignment grooves 101 are provided, and the alignment grooves 101 are distributed on both the inner and outer sides of the airbag 2 .

[0030] In this embodiment, a plurality of alignment grooves 101 are provided, thereby improving the sealing effect between the shaft and the sealing ring 1. Corresponding alignment grooves 101 are provided on the inner and outer sides of the airbag 2, thereby improving the sealing effect between the inner shaft and the outer shaft and the sealing ring 1.

[0031] As a further solution of the present invention, the sealing ring 1 is further provided with an extrusion groove 102 , and the extrusion groove 102 is distributed near the two airbags 2 .

[0032] In this embodiment, when the inner shaft squeezes the airbag 2, the air inside the airbag 2 is expanded and compressed, causing the airbag 2 to be flattened. When the airbag 2 is flattened, the two adjacent airbags 2 are compressed and fit close together, thereby sealing the lubricating oil between the shaft and the sealing ring 1 in the radial direction. When the two adjacent airbags 2 are squeezed, the extrusion groove 102 between them is also squeezed. The extrusion groove 102 is designed to be U-shaped, so that the two adjacent airbags 2 fit more closely together.

[0033] As a further solution of the present invention, the number of the airbags 2 is designed to be multiple, and the number of the extrusion grooves 102 is one less than the number of the airbags 2.

[0034] In this embodiment, a plurality of airbags 2 are designed, and all of them are subjected to uniform force in the circumferential direction. When the end of the shaft squeezes the airbags 2, all of the airbags 2 adjacent to each other are squeezed, so that all of the airbags 2 adjacent to each other are fitted together.

[0035] As a further solution of the present invention, the interior of the airbag 2 is designed to be a hollow cavity structure, and the interior of the airbag 2 is pre-filled with air at normal pressure.

[0036] In this embodiment, the interior of the airbag 2 is pre-filled with air. When the shaft is inserted into the surface of the airbag 2 , the shaft squeezes the airbag 2 , thereby completing the sealing.

[0037] As a further solution of the present invention, the depth of the extrusion groove 102 is lower than the depth of the alignment groove 101 .

[0038] In this embodiment, when the depth of the extrusion groove 102 is lower than that of the alignment groove 101, when two adjacent airbags 2 encounter extrusion, by designing the depth of the extrusion groove 102 to be smaller than the depth of the alignment groove 101, and also being a U-shaped groove, it is easier to make the two adjacent airbags 2 fit more stably.

[0039] The above embodiments are exemplary rather than restrictive, so any technical solution of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.

Claims

1. A toothed high-pressure anti-seepage sealing ring, characterized in that: The toothed high-pressure anti-seepage sealing ring comprises a sealing ring sleeve (1), and the sealing ring sleeve (1) is provided with an extrusion mechanism; The squeezing mechanism includes an airbag (2), which is evenly arranged on the surface of the sealing ring (1). When the airbag (2) is subjected to pressure, it compresses the body, thereby generating a tendency to expand outward, filling the gaps between the airbags (2), thereby completing a radial anti-seepage seal.

2. A toothed high-pressure anti-seepage sealing ring according to claim 1, characterized in that: An alignment groove (101) is provided on the surface of the sealing ring sleeve (1), and the alignment groove (101) facilitates the axial connection of the connecting piece.

3. A toothed high-pressure anti-seepage sealing ring according to claim 2, characterized in that: There are a plurality of alignment grooves (101), and the alignment grooves (101) are distributed on both the inner and outer sides of the airbag (2).

4. The tooth-shaped high-pressure anti-seepage sealing ring according to claim 1, characterized in that: The sealing ring (1) is further provided with an extrusion groove (102), and the extrusion groove (102) is distributed near the two air bags (2).

5. The tooth-shaped high-pressure anti-seepage sealing ring according to claim 4, characterized in that: The number of the airbags (2) is designed to be multiple, and the number of the extrusion grooves (102) is one less than the number of the airbags (2).

6. The tooth-shaped high-pressure anti-seepage sealing ring according to claim 1, characterized in that: The interior of the airbag (2) is designed as a hollow cavity structure, and the interior of the airbag (2) is pre-filled with air at normal pressure.

7. The tooth-shaped high-pressure anti-seepage sealing ring according to claim 4, characterized in that: The depth of the extrusion groove (102) is lower than the depth of the alignment groove (101).

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