CN211145507U - Leakproof straight type backwater lock-off valve - Google Patents
Leakproof straight type backwater lock-off valve Download PDFInfo
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- CN211145507U CN211145507U CN201922319020.6U CN201922319020U CN211145507U CN 211145507 U CN211145507 U CN 211145507U CN 201922319020 U CN201922319020 U CN 201922319020U CN 211145507 U CN211145507 U CN 211145507U
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Abstract
A leakage-proof straight type backwater blocking valve comprises a valve seat; the side end of the valve seat is provided with a threaded connecting end provided with an external thread; the connecting sleeve is connected to the threaded connecting end in a threaded manner; a joint is arranged between the connecting sleeve and the threaded connecting end, and the connecting sleeve comprises a threaded connecting sleeve and a limiting ring connected with the threaded connecting sleeve; the connector comprises an outer connector and a clamping sleeve connected with the outer connector; a flow guide pipe integrated with the threaded connection end is arranged at the end part of the threaded connection end; the inner end of the cutting sleeve is provided with a step ring groove; the step ring groove is connected with a first sealing ring; the end face of the threaded connecting end is provided with a triangular first ring groove; the end surface of the cutting sleeve is provided with a second annular groove; and a second sealing ring is connected between the clamping sleeve and the threaded connecting end. The utility model discloses an increase first sealing washer and seal with the second sealing washer, and the second sealing washer through mutually supporting with second annular groove and first annular, its sealed effect is better.
Description
Technical Field
The utility model relates to a leak protection straight return water lock shut-off valve.
Background
The valve seat is all equipped with the link in the disk seat both ends, and the link generally is threaded connection end and this threaded connection end is fixed with the joint through the adapter sleeve, and is concrete, will connect the card between adapter sleeve and link through adapter sleeve threaded connection end, and this connected mode is for dismantling the connection, and the leakproofness between its threaded connection end, adapter sleeve and the joint is comparatively important, if the poor phenomenon that it appears leaking easily of leakproofness.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is exactly in order to solve and provide a better leak protection straight formula backwater lock off-valve technical problem of sealing between threaded connection end, adapter sleeve and the joint.
In order to solve the technical problem, the utility model relates to a technical solution of leak protection straight return water lock shut-off valve does:
comprises a valve seat; the side end of the valve seat is provided with a threaded connecting end provided with an external thread; the connecting sleeve is connected to the threaded connecting end in a threaded manner; a joint is arranged between the connecting sleeve and the threaded connecting end, and the connecting sleeve comprises a threaded connecting sleeve and a limiting ring connected with the threaded connecting sleeve; the threaded connecting sleeve is in threaded connection with the threaded connecting end; the connector comprises an outer connector and a clamping sleeve connected with the outer connector; the clamping sleeve is limited between the limiting ring and the threaded connecting end; the outer joint penetrates through the limiting ring and is exposed outside the connecting sleeve, and a flow guide pipe integrated with the outer joint is arranged at the end part of the threaded connecting end; the flow guide pipe is tightly attached to the inner wall of the clamping sleeve; the inner end of the cutting sleeve is provided with a step ring groove; the step ring groove is connected with a first sealing ring; the first sealing ring is positioned among the clamping sleeve, the flow guide pipe and the threaded connecting end; the end face of the threaded connecting end is provided with a triangular first ring groove; the end surface of the cutting sleeve is provided with a second ring groove which corresponds to the first ring groove and is in a triangular shape; a second sealing ring is connected between the clamping sleeve and the threaded connecting end; the second sealing ring is positioned in the second annular groove and the first annular groove.
The number of the second sealing rings is two, the number of the corresponding first ring grooves is two, and the number of the corresponding second ring grooves is also two.
The outer joint is provided with an internal thread.
The periphery of the threaded connecting sleeve is circumferentially and uniformly distributed with a plurality of oval planes, and the oval planes are provided with anti-skid pads.
The utility model discloses the technological effect that can reach is: the utility model discloses an increase first sealing washer and seal with the second sealing washer, and the second sealing washer through mutually supporting with second annular groove and first annular, its sealed effect is better.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic structural view of a leak-proof straight type backwater blocking valve of the present invention;
FIG. 2 is an exploded view of a leak-proof straight return lock-off valve of the present invention;
FIG. 3 is a cross-sectional view of a leak-proof straight return lock shut-off valve of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 4;
fig. 6 is a schematic view of the structure of the joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
See fig. 1-6.
A leak-proof straight type backwater blocking valve comprises a valve seat 1; a threaded connecting end 2 provided with an external thread is arranged at the side end of the valve seat 1; the threaded connecting end 2 is in threaded connection with a connecting sleeve; a joint is arranged between the connecting sleeve and the threaded connecting end 2, and the connecting sleeve comprises a threaded connecting sleeve 3 and a limiting ring 4 connected with the threaded connecting sleeve 3; the threaded connecting sleeve 3 is in threaded connection with the threaded connecting end 2; the connector comprises an outer connector 5 and a clamping sleeve 6 connected with the outer connector 5; the clamping sleeve 6 is limited between the limiting ring 4 and the threaded connecting end 2; the outer joint 5 penetrates through the limiting ring 4 and is exposed out of the connecting sleeve, and a flow guide pipe 7 integrated with the end part of the threaded connecting end 2 is arranged at the end part of the threaded connecting end; the flow guide pipe 7 is tightly attached to the inner wall of the clamping sleeve 6; the inner end of the cutting sleeve 6 is provided with a step ring groove 12; the step ring groove 12 is connected with a first sealing ring 8; the first sealing ring 8 is positioned among the clamping sleeve 6, the flow guide pipe 7 and the threaded connecting end 2; the end face of the threaded connecting end 2 is provided with a triangular first annular groove 9; the end surface of the cutting sleeve 6 is provided with a second ring groove 10 which corresponds to the first ring groove 9 and is in a triangular shape; a second sealing ring 11 is connected between the cutting sleeve 6 and the threaded connecting end 2; the second sealing ring 11 is located in the second ring groove 10 and the first ring groove 9.
Specifically, the number of the second sealing rings 11 is two, the number of the corresponding first ring grooves 9 is two, and the number of the corresponding second ring grooves 10 is also two.
Specifically, the outer joint 5 is provided with an internal thread.
Instructions for use: after the utility model is installed, the water flow direction is pointed out by the "→" mark in fig. 3, the water flow is guided through the guide pipe 7, so that the water is not easy to directly act on the first sealing ring 8, and the guide pipe 7 is tightly attached to the inner wall of the cutting sleeve 6 (namely, the outer diameter of the guide pipe 7 is equal to the diameter of the cutting sleeve 6), and the sealing performance is certain; then, a first sealing ring 8 and a second sealing ring 11 are arranged between the threaded connecting end 2 and the cutting sleeve 6 to enhance the sealing performance between the threaded connecting end 2 and the cutting sleeve 6, the second sealing ring 11 is positioned in a second ring groove 10 and a first ring groove 9, the longitudinal sections of the second ring groove 10 and the first ring groove 9 are both triangular (refer to fig. 5), the second sealing rings 11 are respectively tightly attached to two side walls of the second ring groove 10 and two side walls of the first ring groove 9, and the sealing performance is better; the utility model discloses an above-mentioned seal structure, its leakproofness is better, the phenomenon that leaks is difficult for appearing.
Claims (4)
1. A leakage-proof straight type backwater locking valve comprises a valve seat (1); a threaded connecting end (2) provided with an external thread is arranged at the side end of the valve seat (1); the threaded connecting end (2) is in threaded connection with a connecting sleeve; be equipped with the joint between adapter sleeve and threaded connection end (2), its characterized in that: the connecting sleeve comprises a threaded connecting sleeve (3) and a limiting ring (4) connected with the threaded connecting sleeve (3); the threaded connecting sleeve (3) is in threaded connection with the threaded connecting end (2); the connector comprises an outer connector (5) and a clamping sleeve (6) connected with the outer connector (5); the clamping sleeve (6) is limited between the limiting ring (4) and the threaded connecting end (2); the outer joint (5) penetrates through the limiting ring (4) and is exposed out of the connecting sleeve, and a flow guide pipe (7) integrated with the outer joint is arranged at the end part of the threaded connecting end (2); the flow guide pipe (7) is tightly attached to the inner wall of the clamping sleeve (6); the inner end of the cutting sleeve (6) is provided with a step ring groove (12); the step ring groove (12) is connected with a first sealing ring (8); the first sealing ring (8) is positioned among the clamping sleeve (6), the flow guide pipe (7) and the threaded connecting end (2); the end face of the threaded connecting end (2) is provided with a triangular first ring groove (9); a triangular second ring groove (10) corresponding to the first ring groove (9) is formed in the end face of the clamping sleeve (6); a second sealing ring (11) is connected between the clamping sleeve (6) and the threaded connecting end (2); the second sealing ring (11) is positioned in the second annular groove (10) and the first annular groove (9).
2. The leak-proof straight type backwater blocking valve according to claim 1, characterized in that: the number of the second sealing rings (11) is two, the number of the corresponding first ring grooves (9) is two, and the number of the corresponding second ring grooves (10) is two.
3. The leak-proof straight type backwater blocking valve according to claim 1, characterized in that: the outer joint (5) is provided with an internal thread.
4. The leak-proof straight type backwater blocking valve according to claim 1, characterized in that: the periphery of the threaded connecting sleeve (3) is circumferentially and uniformly distributed with a plurality of oval planes, and the oval planes are provided with anti-skid pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319020.6U CN211145507U (en) | 2019-12-20 | 2019-12-20 | Leakproof straight type backwater lock-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319020.6U CN211145507U (en) | 2019-12-20 | 2019-12-20 | Leakproof straight type backwater lock-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145507U true CN211145507U (en) | 2020-07-31 |
Family
ID=71746690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922319020.6U Active CN211145507U (en) | 2019-12-20 | 2019-12-20 | Leakproof straight type backwater lock-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145507U (en) |
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2019
- 2019-12-20 CN CN201922319020.6U patent/CN211145507U/en active Active
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