CN215596646U - Pipe connector sealing ring - Google Patents
Pipe connector sealing ring Download PDFInfo
- Publication number
- CN215596646U CN215596646U CN202121979412.6U CN202121979412U CN215596646U CN 215596646 U CN215596646 U CN 215596646U CN 202121979412 U CN202121979412 U CN 202121979412U CN 215596646 U CN215596646 U CN 215596646U
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- Prior art keywords
- ring
- sealing sleeve
- sealing
- wall
- hoop
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- 238000007789 sealing Methods 0.000 title claims abstract description 152
- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model provides a pipe connector sealing ring which comprises a sealing sleeve, wherein an outer chamfer is arranged at the junction of the outer cylindrical wall of the sealing sleeve and the end faces of two ends of the sealing sleeve, sealing lips which are used for being matched and sealed with the outer wall of a pipe are arranged on the inner wall of an inner hole of the sealing sleeve, which is close to the positions of the two ends of the inner hole of the sealing sleeve, two framework rings which are arranged in a mirror image mode are sleeved at the two ends of the sealing sleeve, a compression gap is reserved at the middle section position of the sealing sleeve in the axial direction of the sealing sleeve, each framework ring comprises an anti-expansion hoop sleeved on the outer wall of the sealing sleeve and a closing ring which is arranged at one end of the anti-expansion hoop in a frustum shape, and the inner conical surface of the closing ring is abutted against the outer chamfer. The utility model has the advantages of suitability for butt joint of small-caliber pipe fittings, convenient installation and high sealing reliability.
Description
Technical Field
The utility model relates to the field of pipe fitting butt joint, in particular to a pipe fitting connector sealing ring.
Background
When the pipe fittings are butted, the butting modes are various, the pipe fittings with thin walls and inconvenient end part thread processing are often connected by a special connector, the existing connector is generally formed by stamping and comprises an upper hoop sheet and a lower hoop sheet, the middle sections of the upper hoop sheet and the lower hoop sheet in the axial direction are respectively provided with a hooping part, a sealing sleeve is arranged between the hooping parts of the upper hoop sheet and the lower hoop sheet, the joint parts of the outer wall of the sealing sleeve and the two end surfaces of the sealing sleeve are respectively provided with an outer chamfer, the two ends of the hooping part are respectively provided with a closing part with the radius smaller than that of the hooping part, the closing part and the hooping part are in transitional connection through a conical surface and abut against the outer chamfer, one side of the closing part, far away from the hooping part, two sides of the upper hoop sheet and the lower hoop sheet are respectively provided with connecting sheets extending outwards, the end part of the pipe fitting is inserted into the sealing sleeve during installation, then the upper hoop sheet and the lower hoop sheet are folded and screwed with bolts, the tightening part is used for tightening the sealing sleeve, and radial force and axial force are applied to the sealing sleeve through the extrusion of the tightening part on the outer wall of the sealing sleeve and the extrusion of the conical surface and the outer chamfer, so that the sealing sleeve tightly wraps the butt joint of the pipe fitting to realize sealing;
however, when the upper hoop sheet and the lower hoop sheet of the existing structure are locked by bolts, the connecting sheets of the upper hoop sheet and the lower hoop sheet tend to be abutted, the bending and abutting joint of the hooping part, the closing part and the reinforcing ring and the connecting sheet is easy to deform, so that the reliability of sealing is reduced, and meanwhile, as the connecting sheets of the upper hoop sheet and the lower hoop sheet tend to be abutted, after final abutment, the extrusion pre-tightening force on the sealing sleeve can reach a threshold value, so that the sealing effect of the sealing sleeve on the pipe fitting is limited; if the pressure is too big in appearing the joint, lead to the seal cover pressurized to produce the inflation in radial direction, can lead to going up hoop piece and hoop piece down and produce the separation each other under the deformation of connection piece, make and go up the hoop piece and form the clearance down between the hoop piece, this clearance can't carry out radial support to the seal cover outer wall, just also cause the seal cover to break because of lacking radial constraint easily under the high pressure, consequently how promote seal cover intensity, improve sealed reliability and just become the problem that an urgent need be solved.
SUMMERY OF THE UTILITY MODEL
Based on the above problems, the present invention aims to provide a pipe connector sealing ring which is suitable for butt joint of small-diameter pipes, is convenient to install, and has high sealing reliability.
Aiming at the problems, the following technical scheme is provided: the utility model provides a pipe fitting connector sealing washer, includes the seal cover, the outer cylinder wall of seal cover is equipped with outer chamfer with both ends terminal surface juncture, be equipped with on the inner wall that the seal cover hole is close to its both ends position department and be used for the sealing lip sealed with pipe fitting outer wall adaptation, seal cover both ends cover has two skeleton rings that are the mirror image setting, and two skeleton rings leave the compression clearance in seal cover axial direction's middle section position department, the skeleton ring is including the hoop that rises and be located in the hoop that prevents of seal cover outer wall and prevent that rise hoop one end is the receipts mouthful ring that the frustum form set up, the internal conical surface of binding off offsets with outer chamfer.
In the structure, the framework rings are arranged at the two ends of the sealing sleeve, when the upper hoop sheet and the lower hoop sheet are clamped with each other, the conical surfaces of the upper hoop sheet and the lower hoop sheet are abutted against the outer conical wall of the closing ring of the framework rings to enable the two framework rings to approach each other so as to reduce the compression gap, so that the axial length of the sealing sleeve is compressed, the sealing sleeve expands in the radial direction, and the sealing sleeve is restrained by the anti-expansion hoop of the framework rings when expanding in the radial direction, so that the expansion direction is forced to face the central direction of the sealing sleeve (namely the surface of a pipe fitting) to realize good sealing; the butt joint device is suitable for butt joint of small-caliber high-pressure pipe fittings, and has stronger bearing capacity, structural strength and sealing reliability than a conventional pipe fitting connector.
The utility model is further set that the small-diameter end of the closing ring is provided with a shielding ring extending towards the center direction of the closing ring, and the inner ring diameter of the shielding ring is not more than the inner hole diameter of the sealing sleeve; the inner ring diameter of the shielding ring is smaller than the small diameter of the lip of the sealing lip.
In the structure, when the outer chamfers at the two ends of the sealing sleeve are extruded by the closing ring and the inner diameter of the outer chamfers is reduced, the joint of the outer chamfers and the inner wall of the sealing sleeve can be extruded from the small-diameter end of the closing ring, and the shielding ring can shield and restrict the axial direction of the outer chamfers, so that the outer chamfers can further deform towards the center direction of the sealing sleeve, and a stronger sealing effect is provided for a pipe fitting; the inner ring diameter of the shielding ring is smaller than the small diameter of the sealing lip, so that the pipe fitting can smoothly penetrate through the shielding ring to be in sealing fit with the sealing lip.
The framework ring is formed by stamping and stretching, and one end of the anti-expansion hoop, which faces away from the closing ring, is provided with a guide section with an inner diameter larger than that of the anti-expansion hoop.
In the structure, the framework ring is a stamping forming piece made of stainless steel, so that the corrosion resistance can be effectively ensured; when the two skeleton rings are close to each other, the guide section forces the outer wall of the sealing sleeve in an expansion state to smoothly enter the anti-expansion hoop, and the sealing sleeve is prevented from being broken due to scraping caused by expansion of the outer wall and the anti-expansion hoop.
The utility model is further provided that the outer cylindrical wall of the sealing sleeve and the expansion-preventing hoop are arranged in an interference fit or transition fit manner.
In the above-mentioned structure, can avoid the seal cover and prevent that the hoop separation that rises drops, can reduce simultaneously when two skeleton rings draw close each other because of there is the clearance between seal cover and the hoop inner wall that prevents rising and need compensate the virtual position of inflation through the seal cover inflation, make the skeleton ring can more directly pass through the seal cover with axial extrusion force and transmit to the pipe fitting surface.
The utility model is further arranged that lubricant is smeared between the outer cylindrical wall of the sealing sleeve and the expansion-proof hoop and between the outer chamfer and the inner conical surface of the closing-up ring.
In the structure, the lubricant is talcum powder or graphite which can be selected, so that when the sealing sleeve is extruded by the framework ring, the outer cylindrical wall and the outer chamfer surface of the sealing sleeve can be better slidingly deformed with the inner wall of the expansion-preventing hoop and the inner wall of the closing-up ring to provide radial tightening force for the inner wall of the sealing sleeve.
The utility model is further provided that the sealing lip is inclined towards the middle section of the length of the sealing sleeve in the axial direction.
In the structure, the sealing lip can be ensured to be tightly attached to the surface of the pipe fitting under the action of medium pressure of the pipe fitting, and a stronger sealing effect is provided.
The utility model is further arranged in that one side of the sealing lip facing the end surface of the sealing sleeve is connected with the inner wall of the sealing sleeve through arc transition to form a plug-in bowl opening.
In the structure, the socket is convenient for the pipe fitting to be inserted into the sealing sleeve.
The utility model is further arranged that the inner hole wall of the sealing sleeve between the adjacent sealing lips is provided with a tightening ring, so that the inner hole diameter of the sealing sleeve between the adjacent sealing lips is gradually reduced towards the direction of the central position between the adjacent sealing lips.
In the structure, the tightening ring can radially support and seal the end faces of the two butt joint pipe fittings when the pipe fittings are inserted, and the sealing effect is effectively improved.
The utility model has the beneficial effects that: the two ends of the sealing sleeve are provided with the frame rings, when the upper hoop sheet and the lower hoop sheet are clamped mutually, the conical surfaces of the upper hoop sheet and the lower hoop sheet are abutted against the outer conical wall of the closing-up ring of the frame rings to enable the two frame rings to approach each other so as to reduce the compression gap, so that the axial length of the sealing sleeve is compressed, the sealing sleeve expands in the radial direction, and the sealing sleeve is restrained by the anti-expansion hoop of the frame rings when expanding in the radial direction, so that the expansion direction is forced to face the central direction of the sealing sleeve (namely the surface of a pipe fitting) to realize good sealing; the butt joint device is suitable for butt joint of small-caliber high-pressure pipe fittings, and has stronger bearing capacity, structural strength and sealing reliability than a conventional pipe fitting connector.
Drawings
Fig. 1 is a schematic view of the overall structure of the pipe connector.
Fig. 2 is a schematic view of a full-section structure of the pipe connector.
Figure 3 is a schematic diagram of an exploded view of a tubular connector.
Fig. 4 is a schematic structural view of the installation state of the sealing sleeve and the skeleton ring of the utility model.
Fig. 5 is a schematic view of the structure of the sealing sleeve and the skeleton ring of the utility model in full section.
FIG. 6 is an enlarged view of the portion A of FIG. 5 according to the present invention.
The reference numbers in the figures mean: 1-upper hoop sheet; 2-lower hoop sheet; 3-conical surface; 10-sealing sleeve; 11-outer chamfer angle; 12-sealing lip; 121-lip; 122-socket bowl mouth; 13-tightening the ring; 20-a scaffold ring; 21-anti-expansion hoop; 211-a guide segment; 22-a closed loop; 23-a shield ring; a-compression gap.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1 to 6, as shown in fig. 1 to 6, a pipe connector sealing ring includes a sealing sleeve 10, an outer cylindrical wall of the sealing sleeve 10 and a junction of end faces at two ends are provided with an outer chamfer 11, an inner wall of an inner hole of the sealing sleeve 10, which is close to positions at two ends of the inner hole, is provided with a sealing lip 12 for being adapted to and sealed with an outer wall of a pipe, two frame rings 20 arranged in a mirror image manner are sleeved at two ends of the sealing sleeve 10, a compression gap a is left at a middle position of the sealing sleeve 10 in an axial direction of the two frame rings 20, each frame ring 20 includes an anti-expansion hoop 21 sleeved on the outer wall of the sealing sleeve 10 and a closing ring 22 arranged in a frustum shape at one end of the anti-expansion hoop 21, and an inner conical surface of the closing ring 22 is abutted to the outer chamfer 11.
In the structure, the framework rings 20 are arranged at the two ends of the sealing sleeve 10, when the upper hoop sheet 1 and the lower hoop sheet 2 are clamped with each other, the conical surfaces 3 of the upper hoop sheet 1 and the lower hoop sheet 2 are abutted against the outer conical walls of the closing rings 22 of the skeleton rings 20, so that the two skeleton rings 20 are urged to approach each other to reduce the compression gap a, the axial length of the sealing sleeve 10 is compressed, the sealing sleeve expands in the radial direction, since the sealing sleeve 10, when expanded in the radial direction, is restrained by the anti-expansion hoops 21 of the skeleton ring 20, the direction of expansion is thus forced towards the centre of the sealing sleeve 10 (i.e. the tube surface) to achieve a good seal, since the expansion-preventing band 21 and the closing-up ring 22 can restrain the sealing sleeve 10 in the axial direction and the radial direction, therefore, the problem that the sealing sleeve 10 is broken and leaked due to the existence of a gap at the joint of the upper hoop sheet 1 and the lower hoop sheet 2 under the action of the pressure of the pipe fitting can be effectively solved; the butt joint device is suitable for butt joint of small-caliber high-pressure pipe fittings, and has stronger bearing capacity, structural strength and sealing reliability than a conventional pipe fitting connector.
In this embodiment, a small-diameter end of the closing-in ring 22 is provided with a shielding ring 23 extending toward the center of the closing-in ring 22, and an inner diameter of the shielding ring 23 is not larger than an inner diameter of an inner hole of the sealing sleeve 10; the inner ring diameter of the shielding ring 23 is smaller than the small diameter of the lip opening of the sealing lip 12.
In the structure, when the outer chamfers 11 at the two ends of the sealing sleeve 10 are extruded by the closing ring 22 and the inner diameter is reduced, the joint of the outer chamfers 11 and the inner wall of the sealing sleeve 10 can be extruded from the small-diameter end of the closing ring 22, and the shielding ring 23 can shield and restrict the axial direction of the closing ring, so that the closing ring can further deform towards the center direction of the sealing sleeve 10, and a stronger sealing effect is provided for a pipe fitting; the inner diameter of the shielding ring 23 is smaller than the small diameter of the lip 121 of the sealing lip 12, so that the pipe can smoothly pass through the shielding ring 23 to be in sealing fit with the lip 121 of the sealing lip 12.
In this embodiment, the skeleton ring 20 is formed by stamping and drawing, and a guide section 211 having an inner diameter larger than that of the expansion-preventing hoop 21 is disposed at an end of the expansion-preventing hoop 21 facing away from the closing ring 22.
In the structure, the framework ring 20 is a stamping formed part made of stainless steel, so that the corrosion resistance can be effectively ensured; when the two skeleton rings 20 approach each other, the guide section 211 forces the outer wall of the sealing sleeve 10 in an expanded state to smoothly enter the anti-expansion hoop 21, thereby preventing the sealing sleeve 10 from being broken due to the scraping between the outer wall expansion and the anti-expansion hoop 21.
In this embodiment, the outer cylindrical wall of the sealing sleeve 10 and the expansion-preventing hoop 21 are installed in an interference fit or transition fit manner.
In the structure, the sealing sleeve 10 and the anti-expansion hoop 21 can be prevented from being separated and falling off, and meanwhile, the problem that when the two framework rings 20 are mutually closed, the sealing sleeve 10 and the inner wall of the anti-expansion hoop 21 have a gap and the expansion of the sealing sleeve 10 is needed to compensate for an expansion virtual position can be solved, so that the framework rings 20 can more directly transmit axial extrusion force to the surface of a pipe fitting through the sealing sleeve 10.
In this embodiment, lubricant is coated between the outer cylindrical wall of the sealing sleeve 10 and the expansion-preventing hoop 21 and between the outer chamfer 11 and the inner conical surface of the closing-up ring 22.
In the structure, the lubricant is talcum powder or graphite which can be selected, so that when the sealing sleeve 10 is extruded by the framework ring 20, the outer cylindrical wall and the outer chamfer 11 surface of the sealing sleeve 10 can better slide and deform with the inner wall of the expansion-preventing hoop 21 and the inner wall of the closing ring 22 to provide radial tightening force for the inner wall of the sealing sleeve 10.
In this embodiment, the lip 121 of the sealing lip 12 is inclined toward the middle of the length of the sealing sleeve 10 in the axial direction.
In the structure, the lip 121 of the sealing lip 12 can be ensured to be tightly attached to the surface of the pipe under the action of medium pressure of the pipe, and a stronger sealing effect is provided.
In this embodiment, the side of the sealing lip 12 facing the end surface of the sealing sleeve 10 and the inner wall of the sealing sleeve 10 are connected by an arc transition to form an insertion bowl opening 122.
In the above structure, the insertion bowl 122 facilitates the insertion of the pipe into the sealing sleeve 10.
In this embodiment, the inner hole wall of the sealing sleeve 10 between adjacent sealing lips 12 is provided with a tightening ring 13, so that the inner hole diameter of the sealing sleeve 10 between adjacent sealing lips 12 is gradually reduced toward the central position between adjacent sealing lips 12.
In the structure, when the pipe fitting is inserted, the tightening ring 13 can radially support and seal the end faces of the two butt joint pipe fittings, and the sealing effect is effectively improved.
The utility model has the beneficial effects that: the framework rings 20 are arranged at the two ends of the sealing sleeve 10, when the upper hoop sheet 1 and the lower hoop sheet 2 are clamped with each other, the conical surfaces 3 of the upper hoop sheet 1 and the lower hoop sheet 2 are abutted against the outer conical wall of the closing ring 22 of the framework rings 20 to enable the two framework rings 20 to approach each other so as to reduce the compression gap a, so that the axial length of the sealing sleeve 10 is compressed, and the sealing sleeve 10 is expanded in the radial direction; the butt joint device is suitable for butt joint of small-caliber high-pressure pipe fittings, and has stronger bearing capacity, structural strength and sealing reliability than a conventional pipe fitting connector.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.
Claims (8)
1. The utility model provides a pipe connector sealing washer, includes the seal cover, the outer cylinder wall of seal cover is equipped with outer chamfer with both ends terminal surface juncture, be equipped with on the inner wall that the seal cover hole is close to its both ends position department and be used for the sealing lip sealed with pipe fitting outer wall adaptation, its characterized in that: the sealing sleeve both ends cover has two skeleton rings that are the mirror image setting, and two skeleton rings leave the compression clearance in the middle section position department of sealing sleeve axial direction, the skeleton ring is including the hoop that rises and be located the hoop that rises of preventing of cover outer wall and be located the binding off ring that rises hoop one end and be frustum form setting, the intra-annular conical surface of binding off offsets with outer chamfer.
2. The pipe fitting connector seal ring of claim 1, wherein: the small-diameter end of the closing ring is provided with a shielding ring extending towards the center direction of the closing ring, and the inner ring diameter of the shielding ring is not larger than the inner hole diameter of the sealing sleeve; the inner ring diameter of the shielding ring is smaller than the small diameter of the lip of the sealing lip.
3. A pipe connector seal ring according to claim 1 or 2, wherein: the framework ring is formed by stamping and stretching, and one end of the anti-expansion hoop, which faces away from the closing ring, is provided with a guide section with an inner diameter larger than that of the anti-expansion hoop.
4. The pipe fitting connector seal ring of claim 1, wherein: and the outer cylindrical wall of the sealing sleeve and the expansion-preventing hoop are installed in an interference fit or transition fit manner.
5. The pipe fitting connector seal ring of claim 1, wherein: and lubricant is coated between the outer cylindrical wall of the sealing sleeve and the expansion-preventing hoop and between the outer chamfer and the inner conical surface of the closing-up ring.
6. The pipe fitting connector seal ring of claim 1, wherein: the sealing lip mouth inclines towards the middle section direction of the axial direction length of the sealing sleeve.
7. A pipe fitting connector seal ring according to claim 1 or 6, wherein: one side of the sealing lip, facing the end face of the sealing sleeve, is in transition connection with the inner wall of the sealing sleeve through an arc to form a socket.
8. The pipe fitting connector seal ring of claim 1, wherein: the inner hole wall of the sealing sleeve between the adjacent sealing lips is provided with a tightening ring, so that the inner hole diameter of the sealing sleeve between the adjacent sealing lips is gradually reduced towards the direction of the central position between the adjacent sealing lips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979412.6U CN215596646U (en) | 2021-08-21 | 2021-08-21 | Pipe connector sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979412.6U CN215596646U (en) | 2021-08-21 | 2021-08-21 | Pipe connector sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596646U true CN215596646U (en) | 2022-01-21 |
Family
ID=79882302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121979412.6U Ceased CN215596646U (en) | 2021-08-21 | 2021-08-21 | Pipe connector sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596646U (en) |
-
2021
- 2021-08-21 CN CN202121979412.6U patent/CN215596646U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230104 Decision number of declaring invalidation: 59965 Granted publication date: 20220121 |