CN210890061U - Non-precompression seal plug - Google Patents
Non-precompression seal plug Download PDFInfo
- Publication number
- CN210890061U CN210890061U CN201921409594.6U CN201921409594U CN210890061U CN 210890061 U CN210890061 U CN 210890061U CN 201921409594 U CN201921409594 U CN 201921409594U CN 210890061 U CN210890061 U CN 210890061U
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- China
- Prior art keywords
- screw rod
- shaped ring
- outer sleeve
- precompression
- plug
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a sealed end cap of non-precompression for solve the precompression shearing breach that appears when passing through incomplete pipeline or the leakage testing technological equipment technical field of damage. Comprises an outer sleeve plug (3), an O-shaped ring (4) and a screw rod (5); the O-shaped ring (4) is sleeved on the screw rod (5), and the screw rod (5) provided with the O-shaped ring (4) is arranged in the outer sleeve plug (3); increase waist shape hole on overcoat plug (3), waist shape hole is established in the position that does not interfere sealed, and waist shape groove structure restriction circumference is rotatory, allows screw rod 5 at axial displacement for tighten up the dovetail groove. The utility model discloses can reduce this kind of sealed risk by a wide margin, reduce the leak test defective rate to promote product percent of pass and quality. Has certain universality and better practical value.
Description
Technical Field
The utility model relates to a sealed end cap of non-precompression for solve the precompression shearing breach that appears when passing through incomplete pipeline or the leakage testing technological equipment technical field of damage.
Background
In numerous products requiring air tightness tests or oil pressure leakage tests, incomplete pipeline channels often appear and need to be sealed, and the phenomenon that the outer wall of an O-shaped ring is damaged by shearing when a conventional piston rod type plug passes through a notch is caused, so that uncertain risks are brought to the leakage tests. The utility model discloses a can reduce this type of sealed risk by a wide margin, reduce the leak test defective rate to promote product percent of pass and quality.
Disclosure of Invention
The utility model aims at: a non-precompression sealing plug is used for solving the problem of leakage test process equipment of shearing gaps or damages of precompression O-shaped rings when passing through an incomplete pipeline
The technical scheme of the utility model:
a non-precompression sealing plug comprises an outer sleeve plug 3, an O-shaped ring 4 and a screw rod 5; the O-shaped ring 4 is sleeved on the screw rod 5, and the screw rod 5 provided with the O-shaped ring 4 is arranged in the outer sleeve plug 3; the nut is characterized in that a waist-shaped hole is additionally formed in the outer sleeve plug 3, the stop pin 2 is fixedly connected with the screw rod 5 through the waist-shaped hole, and threads are additionally arranged at the tail end of the screw rod 5 and are in threaded connection with the nut 1.
The outer sleeve plug 3 and the screw rod 5 are assembled to form a trapezoidal groove, and the O-shaped ring 4 is arranged in the trapezoidal groove.
The angle of the trapezoidal groove is 30 degrees.
The outer diameter of the O-shaped ring 4 is consistent with the diameter of the incomplete pipeline channel.
The O-shaped ring 4 is made of low-hardness rubber.
The stop pin 2 and the screw rod 5 are in interference fit.
The waist-shaped hole is arranged at a position which does not interfere with sealing.
The utility model has the advantages that: in numerous products requiring air tightness tests or oil pressure leakage tests, incomplete pipeline channels often appear and need to be sealed, and the phenomenon that the outer wall of an O-shaped ring is damaged by shearing when a conventional piston rod type plug passes through a notch is caused, so that uncertain risks are brought to the leakage tests. This patent can reduce this kind of sealed risk by a wide margin, reduces the leak test defective rate to promote product percent of pass and quality. Has certain universality and better practical value.
Description of the drawings:
fig. 1 is a half sectional view of the present invention;
FIG. 2 is an example of an application scenario of the present invention;
wherein, 1-nut, 2-stop pin, 3-outer sleeve plug, 4-O-shaped ring, 5-screw rod
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in figure 1, the non-precompression sealing plug comprises an outer sleeve plug 3, an O-shaped ring 4 and a screw rod 5; the O-shaped ring 4 is sleeved on the screw rod 5, and the screw rod 5 provided with the O-shaped ring 4 is arranged in the outer sleeve plug 3; the outer sleeve plug 3 and the screw rod 5 form a structure, the O-shaped ring 4 is arranged in a trapezoidal groove, and the angle of the trapezoidal groove is 30 degrees; the O-shaped ring is compressed after the trapezoidal groove is tightened, so that the sealing function is completed; the outer diameter of the O-shaped ring 4 is consistent with the diameter of the incomplete pipeline channel, so that the O-shaped ring 4 is prevented from shearing when passing through the incomplete pipeline channel, and the leakage test result is prevented from being influenced; the O-shaped ring 4 is made of a low-hardness rubber material, and the low-hardness rubber is beneficial to compression deformation, so that the sealing is more reliable; increase waist shape hole on overcoat plug 3, waist shape hole is established in the position that does not interfere sealed, and the slot structure restriction circumference is rotatory, allows screw rod 5 at axial displacement for tighten up the dovetail groove. The stop pin 2 is fixedly connected with the screw rod 5 through a waist-shaped hole, the stop pin 2 is in interference fit with the screw rod 5, and the screw rod 5 rotates along with the stop pin 2 in order to prevent the stop pin 2 from falling off and the nut 1 from being screwed down; the tail end of the screw rod 5 is additionally provided with threads which are in threaded connection with the nut 1.
Under O type circle relaxs the state, installs the end cap to required sealed pipeline after-fixing, screws up nut 1 and tightens up screw rod 5, prevents through stop pin 2 that nut 1 and screw rod 5 from following the commentaries on classics to through tightening up trapezoidal groove extrusion O type circle 4 that overcoat plug 3 and the cooperation combination of screw rod 5 come, make the increase of O type circle 4 external diameter, realize installing the precompression realization sealing function before the back leakage test that targets in place. The leakage test in a certain pressure range can be met by adopting a 30-degree trapezoidal groove to realize sealing in practical use.
Claims (7)
1. A non-precompression sealing plug comprises an outer sleeve plug (3), an O-shaped ring (4) and a screw rod (5); the O-shaped ring (4) is sleeved on the screw rod (5), and the screw rod (5) provided with the O-shaped ring (4) is arranged in the outer sleeve plug (3); the anti-theft bolt is characterized in that a waist-shaped hole is additionally formed in the outer sleeve plug (3), the stop pin (2) is fixedly connected with the screw rod (5) through the waist-shaped hole, and threads are additionally arranged at the tail end of the screw rod (5) and are in threaded connection with the nut (1).
2. Non-precompressed sealing plug according to claim 1, characterized in that the outer sleeve plug (3) forms a trapezoidal groove after assembly with the screw (5), in which groove the O-ring (4) is accommodated.
3. The non-precompressed sealing plug of claim 2, wherein said trapezoidal groove is angled at 30 °.
4. The non-precompressed sealing plug according to claim 1, wherein the O-ring (4) has an outer diameter corresponding to the diameter of the non-full conduit passageway.
5. Non-precompressed sealing plug according to claim 1, characterized in that the material of the O-ring (4) is a low-durometer rubber material.
6. Non-precompressed sealing plug according to claim 1, characterized in that the stop pin (2) has an interference fit with the screw (5).
7. The non-precompressed sealing plug according to claim 1, wherein said slotted hole is positioned so as not to interfere with the seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409594.6U CN210890061U (en) | 2019-08-27 | 2019-08-27 | Non-precompression seal plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409594.6U CN210890061U (en) | 2019-08-27 | 2019-08-27 | Non-precompression seal plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890061U true CN210890061U (en) | 2020-06-30 |
Family
ID=71318007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921409594.6U Active CN210890061U (en) | 2019-08-27 | 2019-08-27 | Non-precompression seal plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890061U (en) |
-
2019
- 2019-08-27 CN CN201921409594.6U patent/CN210890061U/en active Active
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