CN220060990U - Saddle type electrofusion pipe fitting for operation under pressure - Google Patents
Saddle type electrofusion pipe fitting for operation under pressure Download PDFInfo
- Publication number
- CN220060990U CN220060990U CN202321566969.6U CN202321566969U CN220060990U CN 220060990 U CN220060990 U CN 220060990U CN 202321566969 U CN202321566969 U CN 202321566969U CN 220060990 U CN220060990 U CN 220060990U
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- China
- Prior art keywords
- saddle
- groove
- pipe fitting
- blocking piece
- plug member
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- 230000000903 blocking effect Effects 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model provides a saddle type electrofusion pipe fitting for pressurized operation, and belongs to the technical field of machinery. Including last saddle and plug member, its characterized in that, the plug member is solid cubic, the joint groove has been seted up to the plug member top surface, plug member upper end cover is equipped with first sealing washer, the plug member with go up saddle screw clearance cooperation and pass through first sealing washer seals. The solid blocking piece is screwed into the upper saddle, pressure is released firstly to ensure pressure balance of the upper side and the lower side of the blocking piece, tightness is improved, the problem of sealing performance reduction caused by a valve is avoided, the blocking piece is smoothly released in the process of being installed on the upper saddle through threaded connection with a gap, instantaneous larger air pressure change cannot be generated, and safety is improved.
Description
Technical Field
The utility model belongs to the technical field of machinery, and particularly relates to a saddle type electrofusion pipe fitting for pressurized operation.
Background
The saddle type electrofusion pipe fitting is a special pipe fitting which is specially used for repairing scratches and tiny air leakage points generated by the PE pipe under the pressure state. In the prior art, saddle type electrofusion pipe fitting generally includes saddle, lower saddle and plug, and wherein the plug generally need carry out zonulae occludens to plug and last saddle through special lower blanking plug, and the plug includes body and valve, body and last saddle sealing connection, and the body middle part has the through-hole that runs through along the body axial, and the valve passes the through-hole and can carry out the shutoff to the through-hole. The pressure in the PE pipe is higher in the operation process, when the body is pushed down by the lower plugging device and goes deep into the upper saddle, the PE pipe and the plugging piece are in a high-pressure state, the valve is opened at the moment, high-pressure gas leaks out of the through hole in a short time, accidents easily occur, the safety is lower, the valve is easy to be opened under the action of external force, and the gas in the pipe easily overflows from the through hole and has weaker sealing property.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a saddle type electrofusion pipe fitting for pressurized operation. The technical problems to be solved by the utility model are as follows: how to improve the sealing performance and the safety of saddle type electrofusion pipe fittings.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the saddle type electrofusion pipe fitting comprises an upper saddle and a blocking piece, and is characterized in that the blocking piece is solid and blocky, a clamping groove is formed in the top surface of the blocking piece, a first sealing ring is sleeved at the upper end of the blocking piece, and the blocking piece is matched with the thread clearance of the upper saddle and is sealed through the first sealing ring.
When the plugging device is used, the lower plugging device is inserted into the clamping groove to be clamped with the plugging piece, the plugging piece is screwed into the upper saddle through rotating the lower plugging device, the threaded connection of the plugging piece between the upper saddle is not tight threaded connection but is clearance fit, and the plugging piece is solid block-shaped, so that air pressure can only be discharged from the threaded connection position of the upper saddle and the plugging piece to balance the pressure on the upper side and the lower side of the plugging piece in the process of screwing the plugging piece, and the plugging piece is continuously screwed into the plugging piece to seal the upper saddle through the first sealing ring at the upper end after pressure relief. The solid blocking piece is screwed into the upper saddle, pressure is released firstly to ensure pressure balance of the upper side and the lower side of the blocking piece, tightness is improved, the problem of sealing performance reduction caused by a valve is avoided, the blocking piece is smoothly released in the process of being installed on the upper saddle through threaded connection with a gap, instantaneous larger air pressure change cannot be generated, and safety is improved.
In the saddle-type electrofusion pipe fitting for pressurized operation, the upper saddle is provided with the annular installation part protruding upwards, the blocking piece is columnar, the diameter of the upper end of the blocking piece is larger than that of the lower end of the blocking piece, and the lower end of the blocking piece is in threaded connection with the inner wall of the installation part. The diameter of the upper end of the blocking piece is larger than that of the lower end of the blocking piece, so that when the lower end of the blocking piece is in threaded connection with the inner wall of the installation part, air in the PE pipe can be discharged from the air gap to balance air pressure.
In the saddle-type electric melting pipe fitting for operation under pressure, the upper end of the blocking piece is provided with the concave ring, the first sealing ring is sleeved and fixed in the concave ring, the first sealing ring is abutted against the inner wall of the installation part, and the upper end of the blocking piece is abutted against the inner wall of the installation part.
In the saddle type electrofusion pipe fitting with pressure operation, two first sealing rings are arranged, two concave rings are arranged, and the two first sealing rings are respectively fixed in the two concave rings. The two first sealing rings are arranged, so that the tightness is improved.
In the saddle type electrofusion pipe fitting with pressure operation, the clamping groove comprises a vertical cylindrical groove, an annular movable groove is formed in the groove wall of the cylindrical groove, strip-shaped holes are formed in two sides of the groove top of the cylindrical groove, two clamping pins are fixed on the blocking piece, and the two clamping pins penetrate through the annular movable groove downwards. During installation, the lower plugging device is inserted into the cylindrical groove, and the rotating pins on the lower plugging device enter the annular movable groove from the strip-shaped holes on the two sides of the top of the cylindrical groove and communicated with the notch of the cylindrical groove, so that the lower plugging device is rotated, and the rotating pins of the lower plugging device are abutted against the clamping pins to drive the plugging piece to rotate.
In the saddle type electric smelting pipe fitting with pressure operation, the upper saddle is further covered with the protective cap, the protective cap is in threaded connection with the upper saddle, an annular groove is formed in the inner bottom of the protective cap, a second sealing ring is fixed in the annular groove, and the top surface of the mounting portion is attached to and abutted against the second sealing ring.
Compared with the prior art, the utility model has the advantages that: the hidden danger that the valve reduces the gas tightness can be avoided to solid with blocking the piece, with solid blocking the in-process of piece screw in saddle pressure release first in order to guarantee the pressure balance of both sides about the blocking the piece, improved the leakproofness, make the in-process of installing at the saddle at blocking the piece through the threaded connection that has the clearance be mild pressure release process, can not produce instantaneous great atmospheric pressure and change, improve the security.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present utility model;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is a top plan view of the occluding component;
in the figure, 1, an upper saddle; 11. a mounting part; 2. a blocking member; 21. a clamping groove; 211. a cylindrical groove; 212. an annular movable groove; 213. a bar-shaped hole; 22. a concave ring; 3. a first seal ring; 4. a second seal ring; 5. a bayonet lock; 6. a lower saddle; 7. a pipe; 8. a bolt; 9. a nut; 10. a protective cap; 101. an annular groove.
Detailed Description
The following is a specific embodiment of the present utility model and a technical solution of the present utility model is further described with reference to the accompanying drawings, but the present utility model is not limited to the following embodiment.
Referring to fig. 1-3, a saddle-shaped electrofusion pipe fitting for pressurized operation comprises an upper saddle 1 and a blocking piece 2, and is characterized in that the blocking piece 2 is solid and blocky, a clamping groove 21 is formed in the top surface of the blocking piece 2, a first sealing ring 3 is sleeved at the upper end of the blocking piece 2, the blocking piece 2 is in threaded clearance fit with the upper saddle 1 and is sealed through the first sealing ring 3, the upper saddle 1 is provided with an annular installation part 11 protruding upwards, the blocking piece 2 is columnar, the diameter of the upper end of the blocking piece 2 is larger than that of the lower end of the blocking piece 2, so that air in a PE pipe can be discharged from the gap to perform air pressure balance when the lower end of the blocking piece 2 is in threaded connection with the inner wall of the installation part 11, a concave ring 22 is arranged at the upper end of the blocking piece 2, the first sealing ring 3 is sleeved and fixed in the concave ring 22, the first sealing ring 3 is in fit with the inner wall of the installation part 11, and the upper end of the blocking piece 2 is in butt joint with the inner wall of the installation part 11.
To further improve the tightness, the number of the first sealing rings 3 is two, the number of the concave rings 22 is two, and the two first sealing rings 3 are respectively fixed in the two concave rings 22.
The clamping groove 21 comprises a vertical cylindrical groove 211, an annular movable groove 212 is formed in the groove wall of the cylindrical groove 211, strip-shaped holes 213 which are formed in two sides of the groove top of the cylindrical groove 211 and are communicated with the groove opening of the cylindrical groove 211, two clamping pins 5 are fixed on the blocking piece 2, and the two clamping pins 5 downwards penetrate through the annular movable groove 212.
The upper saddle 1 is also covered with a protective cap 10, the protective cap 10 is in threaded connection with the upper saddle 1, an annular groove 101 is formed in the inner bottom of the protective cap 10, a second sealing ring 4 is fixed in the annular groove 101, and the top surface of the mounting part 11 is abutted against the second sealing ring 4.
The pipe 7 is clamped between the upper saddle 1 and the lower saddle 6 and is fixed through the screw nut 9, the blocking piece 2 is installed in the installation part 11 of the upper saddle 1 through the lower blocking device, specifically, the lower blocking device is inserted into the cylindrical groove 211, a rotating pin on the lower blocking device enters the annular movable groove 212 from the strip-shaped holes 213 on two sides of the top of the cylindrical groove 211, the rotating pin of the lower blocking device abuts against the bayonet 5 to drive the blocking piece 2 to rotate, the rotating blocking piece 2 moves downwards to enable the lower end of the blocking piece 2 to be in threaded connection with the inner wall of the installation part 11, internal and external pressure caused by the fact that gas in the pipe 7 is discharged to the outside from a gap of the threaded connection part is balanced, and the blocking piece 2 continues to penetrate into the installation part 11 to be attached to and abutted against the inner wall of the installation part 11 in the pressure release process, so that sealing is achieved.
According to the utility model, the hidden danger of air tightness reduction of the valve can be avoided by the solid blocking piece 2, the pressure is released first and then the sealing is carried out in the process of screwing the solid blocking piece 2 into the upper saddle 1, the operation safety is improved, the problem of reduced sealing performance caused by the valve is avoided, the smooth pressure release process is realized in the process of installing the blocking piece on the upper saddle through the threaded connection with a gap, and the instantaneous larger air pressure change is not generated, so that the operation safety is improved.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a saddle-type electric smelting pipe fitting of operation under pressure, includes saddle (1) and plug member (2), its characterized in that, plug member (2) are solid cubic, joint groove (21) have been seted up to plug member (2) top surface, plug member (2) upper end cover is equipped with first sealing washer (3), plug member (2) with saddle (1) screw clearance cooperation and pass through first sealing washer (3) seal.
2. Saddle-type electrofusion pipe fitting for pressurized operation according to claim 1, characterized in that the upper saddle (1) has an upwardly protruding annular mounting portion (11), the blocking member (2) has a columnar shape, the diameter of the upper end of the blocking member (2) is larger than the diameter of the lower end of the blocking member (2), and the lower end of the blocking member (2) is in threaded connection with the inner wall of the mounting portion (11).
3. Saddle-type electrofusion pipe fitting with pressure operation according to claim 2, characterized in that the upper end of the blocking piece (2) is provided with a concave ring (22), the first sealing ring (3) is sleeved and fixed in the concave ring (22), the first sealing ring (3) is abutted against the inner wall of the installation part (11), and the upper end of the blocking piece (2) is abutted against the inner wall of the installation part (11).
4. A saddle-type electrofusion pipe fitting for pressurized operation according to claim 3, wherein said first sealing rings (3) are provided in two, said concave rings (22) are provided in two, and said first sealing rings (3) are respectively fixed in said concave rings (22).
5. Saddle-type electrofusion pipe fitting with pressure operation according to any of claims 1-4, characterized in that the clamping groove (21) comprises a vertical cylindrical groove (211), an annular movable groove (212) is arranged on the groove wall of the cylindrical groove (211), strip-shaped holes (213) are arranged on two sides of the groove top of the cylindrical groove (211), two clamping pins (5) are fixed on the blocking piece (2), and the two clamping pins (5) penetrate through the annular movable groove (212) downwards.
6. Saddle-type electrofusion pipe fitting with pressure operation according to any of claims 2-4, characterized in that the upper saddle (1) is further covered with a protective cap (10), the protective cap (10) is in threaded connection with the upper saddle (1), an annular groove (101) is arranged on the inner bottom of the protective cap (10), a second sealing ring (4) is fixed in the annular groove (101), and the top surface of the installation part (11) is abutted against the second sealing ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321566969.6U CN220060990U (en) | 2023-06-19 | 2023-06-19 | Saddle type electrofusion pipe fitting for operation under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321566969.6U CN220060990U (en) | 2023-06-19 | 2023-06-19 | Saddle type electrofusion pipe fitting for operation under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060990U true CN220060990U (en) | 2023-11-21 |
Family
ID=88756672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321566969.6U Active CN220060990U (en) | 2023-06-19 | 2023-06-19 | Saddle type electrofusion pipe fitting for operation under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060990U (en) |
-
2023
- 2023-06-19 CN CN202321566969.6U patent/CN220060990U/en active Active
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