CN211289123U - Chamfer-free sealing structure - Google Patents
Chamfer-free sealing structure Download PDFInfo
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- CN211289123U CN211289123U CN201921988301.4U CN201921988301U CN211289123U CN 211289123 U CN211289123 U CN 211289123U CN 201921988301 U CN201921988301 U CN 201921988301U CN 211289123 U CN211289123 U CN 211289123U
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- groove
- seal groove
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- seal
- lip
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- 238000007789 sealing Methods 0.000 title claims abstract description 97
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of sealing, and discloses a chamfer-free sealing structure, which comprises an inner pipe, an outer pipe, a sleeve pipe and a sealing ring, wherein the outer pipe is detachably sleeved on the inner pipe, a slot for inserting the sleeve pipe is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and the outer wall of the inner pipe is provided with a sealing groove for placing the sealing ring; the sealing ring comprises a main body, and a lip is arranged on the main body; the seal groove includes first seal groove and second seal groove, and the groove depth of first seal groove is less than the groove depth of second seal groove, and the bottom of lip is laminated with the tank bottom of first seal groove, and the thickness of lip under the non-compression state is greater than the groove depth of first seal groove, and the width of lip under the non-compression state is less than the groove width of first seal groove, and the bottom of main part is laminated with the tank bottom of second seal groove, and the thickness of main part under the non-compression state is less than or equal to the groove depth of second seal groove. Adopt the utility model has the advantages of the leakproofness is good, simple to operate, safe and reliable and with low costs.
Description
Technical Field
The utility model relates to a sealed technical field especially relates to an exempt from chamfer seal structure.
Background
In the pipeline industry, the pipe fittings need to be quickly assembled and disassembled and conveniently maintained, and simultaneously have better sealing performance, at present, the sealing structure of the pipe joint generally uses O-shaped rings for sealing, such as a clamp pressing type structure, a nut clamping sleeve type structure and a direct insertion type structure, the O-shaped rings are frequently adopted for sealing, but when the sealing is adopted in the mode, the pipe joint needs to carry out full-circle chamfering on the pipe end opening before installation, the process is complex, the installation is troublesome, time and labor are wasted, the cost is high, the pipe cannot be obliquely cut, otherwise, the sealing ring is extremely easy to be extruded to be damaged or pushed out of the sealing groove when the pipe is inserted, the sealing performance of the sealing ring is invalid, and the sealing effect is poor; in addition, if an installer forgets to round and chamfer the pipe end, the sealing performance does not meet the use requirement, and high-pressure fluid leaks, thereby causing loss.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the chamfer-free sealing structure is good in sealing performance, convenient to install, safe, reliable and low in cost.
In order to solve the technical problem, the utility model provides a chamfer-free sealing structure, which comprises an inner tube, an outer tube, a sleeve and a sealing ring, wherein the outer tube is detachably sleeved on the inner tube, an inserting groove for inserting the sleeve is formed between the inner wall of the outer tube and the outer wall of the inner tube, and a sealing groove for placing the sealing ring is arranged on the outer wall of the inner tube; the sealing ring comprises a main body, and a lip is arranged on the main body; the seal groove includes first seal groove and second seal groove, first seal groove with the second seal groove is the echelonment, just the groove depth of first seal groove is less than the groove depth of second seal groove, the bottom of lip with the tank bottom laminating of first seal groove, just the thickness of lip under the non-compression state is greater than the groove depth of first seal groove, the width of lip under the non-compression state is less than the groove width of first seal groove, the bottom of main part with the tank bottom laminating of second seal groove, the thickness of main part under the non-compression state is less than or equal to the groove depth of second seal groove.
As a preferred aspect of the present invention, the width of the main body in the non-compressed state is smaller than the groove width of the second seal groove.
As a preferable embodiment of the present invention, the cross-sectional shape of the lip is circular, square or triangular.
As the utility model discloses preferred scheme, the material of sealing washer is elastic material.
As the utility model discloses preferred scheme, the inner tube is bilateral symmetry structure, the left part of inner tube with the right part of inner tube is equipped with an outer tube respectively in the cover.
As the utility model discloses preferred scheme, the seal groove is equipped with a plurality ofly, the sealing washer is equipped with a plurality ofly correspondingly.
The embodiment of the utility model provides an exempt from chamfer seal structure compares with prior art, and its beneficial effect lies in:
during assembly, the sealing ring is sleeved into the inner pipe firstly, so that the sealing ring is placed in the sealing groove, the outer pipe is sleeved on the inner pipe, and finally the sleeve is inserted into the slot; meanwhile, the thickness of the lip in a non-compression state is larger than the groove depth of the first sealing groove, so that the sealing ring is in sealing connection with the sleeve and the sealing groove, and the sealing effect is good; in addition, when high-pressure fluid enters a gap between the inner pipe and the sleeve from the main body in a lip opening direction, the high-pressure fluid extrudes the sealing ring inwards to enable the main body to be tightly attached to the groove wall of the second sealing groove close to the first sealing groove, and at the moment, lip surfaces on two sides of the lip opening are tightly attached to the inner wall of the sleeve and the groove bottom of the first sealing groove respectively under the extrusion action of the sleeve and the high-pressure fluid; when high-pressure fluid gets into inner tube and sheathed tube clearance from the lip towards the main part orientation, high-pressure fluid outwards extrudees the sealing washer, makes the main part hugs closely on the cell wall of first seal groove is kept away from to the second seal groove, at this moment, the lip under the squeezing action of sleeve pipe and high-pressure fluid its both sides lip respectively with the tank bottom of sheathed tube inner wall and first seal groove is closely laminated for no matter which direction the high-pressure fluid gets into inner tube and sheathed tube clearance from, the sealing washer can both closely laminate with seal groove and sleeve pipe, realizes sealing connection, can prevent high-pressure fluid infiltration effectively, and the leakproofness is good.
Drawings
Fig. 1 is a schematic structural view of a chamfer-free sealing structure provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a high-pressure fluid entering a gap between an inner pipe and a sleeve from a main body in a direction of a lip;
FIG. 3 is a schematic structural view of a high-pressure fluid entering a gap between an inner tube and a sleeve from a lip toward a main body;
in the figure, 1, an inner tube; 2. an outer tube; 3. a sleeve; 4. a seal ring; 5. a slot; 6. a sealing groove; 7. a main body; 8. a lip; 9. a first seal groove; 10. a second seal groove.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the preferred embodiment of the chamfer-free sealing structure according to the preferred embodiment of the present invention includes an inner tube 1, an outer tube 2, a sleeve 3 and a sealing ring 4, wherein the outer tube 2 is detachably sleeved on the inner tube 1, an insertion groove 5 for inserting the sleeve 3 is formed between the inner wall of the outer tube 2 and the outer wall of the inner tube 1, and a sealing groove 6 for placing the sealing ring 4 is formed on the outer wall of the inner tube 1; the sealing ring 4 comprises a main body 7, and a lip 8 is arranged on the main body 7; the sealing groove 6 comprises a first sealing groove 9 and a second sealing groove 10, the first sealing groove 9 and the second sealing groove 10 are in a step shape, the groove depth of the first sealing groove 9 is smaller than that of the second sealing groove 10, the bottom of the lip 8 is attached to the groove bottom of the first sealing groove 9, the thickness of the lip 8 in a non-compression state is larger than that of the first sealing groove 9, the width of the lip 8 in a non-compression state is smaller than that of the first sealing groove 9, the bottom of the main body 7 is attached to the groove bottom of the second sealing groove 10, and the thickness of the main body 7 in a non-compression state is smaller than or equal to that of the second sealing groove 10; wherein, the lateral surface of main part 7 is the inclined plane, the cross-sectional shape of lip 8 is circular, square or triangle-shaped.
During assembly, the sealing ring 4 is sleeved in the inner pipe 1 firstly, so that the sealing ring 4 is placed in the sealing groove 6, the outer pipe 2 is sleeved on the inner pipe 1, and finally the sleeve 3 is inserted into the slot 5, and the thickness of the main body 7 in a non-compression state is smaller than or equal to the depth of the second sealing groove 10, so that the sleeve 3 can be smoothly sleeved on the sealing ring 4, the sleeve 3 can be smoothly sleeved without chamfering, the sealing ring 4 cannot be extruded out of the sealing groove 6, the sealing ring 4 is effectively protected, and the sealing ring is safe, reliable, low in cost, rapid in assembly and convenient to assemble; meanwhile, the thickness of the lip 8 in a non-compression state is larger than the depth of the first sealing groove 9, so that the sealing ring 4 is in sealing connection with the sleeve 3 and the sealing groove 6, and the sealing effect is good; in addition, as shown in fig. 2, the direction indicated by the arrow is a high-pressure fluid flowing direction, when the high-pressure fluid enters the gap between the inner pipe 1 and the casing 3 from the main body 7 toward the lip 8, the high-pressure fluid presses the seal ring 4 inward, so that the main body 7 is tightly attached to the wall of the second seal groove 10 close to the first seal groove 9, and at this time, the lip 8 is tightly attached to the inner wall of the casing 3 and the groove bottom of the first seal groove 9 by the two side lip surfaces under the pressing action of the casing 3 and the high-pressure fluid; as shown in fig. 3, the direction indicated by the arrow is a high-pressure fluid flowing direction, when a high-pressure fluid enters the gap between the inner tube 1 and the sleeve 3 from the lip 8 toward the main body 7, the high-pressure fluid extrudes the seal ring 4 outwards, so that the main body 7 is tightly attached to the groove wall of the second seal groove 10 away from the first seal groove 9, at this time, the lip 8 is tightly attached to the inner wall of the sleeve 3 and the groove bottom of the first seal groove 9 respectively by the lip surfaces on both sides under the extrusion action of the sleeve 3 and the high-pressure fluid, so that the seal ring 4 can be tightly attached to the seal groove 6 and the sleeve 3 no matter which direction the high-pressure fluid enters the gap between the inner tube 1 and the sleeve 3, thereby achieving a sealing connection, effectively preventing the high-pressure fluid from.
For example, the width of the main body 7 in a non-compression state is smaller than the groove width of the second sealing groove 10, so that the sealing ring 4 is conveniently sleeved in the sealing groove 6, and the installation and the positioning are convenient.
Exemplarily, the material of the sealing ring 4 is an elastic material, specifically, the material of the sealing ring 4 is rubber, so that the sealing ring 4 can be extruded and deformed under the action of high-pressure fluid, the bonding strength between the sealing ring 4 and the sealing groove 6 and the sleeve 3 is improved, and the sealing performance is improved.
Illustratively, according to actual use requirements, the inner tube 1 is of a bilaterally symmetrical structure, the left part of the inner tube 1 and the right part of the inner tube 1 are respectively sleeved with an outer tube 2, a plurality of sealing grooves 6 are arranged, and a plurality of sealing rings 4 are correspondingly arranged; the inner tube 1 shown in fig. 1 is a two-way joint, and in other embodiments, the inner tube 1 may be a three-way joint, a four-way joint or a plug, and the present invention is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art.
In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (6)
1. A chamfer-free sealing structure is characterized by comprising an inner pipe, an outer pipe, a sleeve and a sealing ring, wherein the outer pipe is detachably sleeved on the inner pipe, an insertion groove for inserting the sleeve is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a sealing groove for placing the sealing ring is formed in the outer wall of the inner pipe; the sealing ring comprises a main body, and a lip is arranged on the main body; the seal groove includes first seal groove and second seal groove, first seal groove with the second seal groove is the echelonment, just the groove depth of first seal groove is less than the groove depth of second seal groove, the bottom of lip with the tank bottom laminating of first seal groove, just the thickness of lip under the non-compression state is greater than the groove depth of first seal groove, the width of lip under the non-compression state is less than the groove width of first seal groove, the bottom of main part with the tank bottom laminating of second seal groove, the thickness of main part under the non-compression state is less than or equal to the groove depth of second seal groove.
2. The chamfer-free seal structure of claim 1, wherein the width of the body in the uncompressed state is less than the groove width of the second seal groove.
3. The chamfer-free sealing structure of claim 1, wherein the cross-sectional shape of the lip is circular, square or triangular.
4. The chamfer-free sealing structure of claim 1, wherein the sealing ring is made of an elastic material.
5. The chamfer-free sealing structure of claim 1, wherein the inner tube is a bilateral symmetry structure, and the left part of the inner tube and the right part of the inner tube are respectively sleeved with an outer tube.
6. The chamfer-free seal structure of claim 1, wherein there are a plurality of said seal grooves and a corresponding plurality of said seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988301.4U CN211289123U (en) | 2019-11-15 | 2019-11-15 | Chamfer-free sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988301.4U CN211289123U (en) | 2019-11-15 | 2019-11-15 | Chamfer-free sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211289123U true CN211289123U (en) | 2020-08-18 |
Family
ID=72011507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921988301.4U Active CN211289123U (en) | 2019-11-15 | 2019-11-15 | Chamfer-free sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211289123U (en) |
-
2019
- 2019-11-15 CN CN201921988301.4U patent/CN211289123U/en active Active
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