CN213655741U - Hydraulic stop valve with reset spring - Google Patents
Hydraulic stop valve with reset spring Download PDFInfo
- Publication number
- CN213655741U CN213655741U CN202022456043.4U CN202022456043U CN213655741U CN 213655741 U CN213655741 U CN 213655741U CN 202022456043 U CN202022456043 U CN 202022456043U CN 213655741 U CN213655741 U CN 213655741U
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- valve
- hydraulic
- spring
- piston
- shut
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Abstract
The utility model provides a spring-return's hydraulic stop valve contains: a shut-off valve assembly; a piston valve stem; a hydraulic drive assembly; a disc spring; the shut-off valve assembly includes: a valve body; a valve flap; a valve cover bracket; the hydraulic drive assembly includes: the bottom of the hydraulic cylinder is provided with a piston ring, and the piston ring is fixedly connected with a piston valve rod; the oil cylinder cover is fixedly arranged at the top of the hydraulic cylinder; the top of the piston valve rod penetrates through a valve cover bracket and an oil cylinder cover in sequence and is used as an oil cylinder piston to form a hydraulic driving device together with a hydraulic driving device assembly; the disc spring is arranged in the hydraulic cylinder and between the piston ring and the cylinder cover. The utility model discloses compact structure adopts single hydraulic circuit, can remote control operation to can close the stop valve under the condition of controlling hydraulic pressure decompression.
Description
Technical Field
The utility model relates to a hydraulic stop valve for single-action ship especially relates to a spring-return's hydraulic stop valve.
Background
In the existing marine pipeline system, the hydraulic stop valve is a double-acting type stop valve, namely, pressure oil needs to be introduced into corresponding areas of the hydraulic cylinder by switches. The valve is switched on and off by a reversing electromagnetic valve or a manual reversing valve, and the reversing valve cannot be controlled or operated under a special condition.
Disclosure of Invention
The utility model aims at providing a spring-return's hydraulic stop valve can remote control operation to can make the stop valve be in the closed condition under the condition of controlling hydraulic pressure decompression (losing electricity).
In order to achieve the above object, the utility model provides a hydraulic stop valve that spring resets contains: a shut-off valve assembly; a piston valve stem; a hydraulic drive assembly; a disc spring;
wherein the shut-off valve assembly comprises: a valve body; a valve flap; a valve cover bracket;
wherein the hydraulic drive assembly comprises: the bottom of the hydraulic cylinder is provided with a piston ring, and the piston ring is fixedly connected with a piston valve rod; the oil cylinder cover is fixedly arranged at the top of the hydraulic cylinder;
the top of the piston valve rod penetrates through a valve cover support and an oil cylinder cover in sequence and is used as an oil cylinder piston to form a hydraulic driving device together with a hydraulic driving device assembly;
the disc spring is arranged inside the hydraulic cylinder and between the piston ring and the cylinder cover.
The hydraulic driving device assembly further comprises a hydraulic joint, and the hydraulic joint is arranged on the hydraulic cylinder and used for inputting hydraulic oil.
Wherein, be provided with inlet channel and outlet channel on the valve body.
Wherein the valve flap is arranged at the connection of the inlet channel and the outlet channel of the valve body.
The middle of the valve cover support is hollow, the upper end and the lower end of the valve cover support are provided with flanges, a hydraulic cylinder is fixedly mounted on the flange at the upper end of the valve cover support, and the flange at the lower end of the valve cover support is fixedly connected with the valve body.
The spring-reset hydraulic stop valve further comprises a filler, and the filler is fixed in a gap between the piston valve rod and a flange at the lower end of the valve cover support.
The spring-reset hydraulic stop valve further comprises a packing gland, and threads are arranged on the outer surface of the packing gland.
Furthermore, the inner side surface of the lower end flange of the valve cover support is provided with threads, and the threads and the packing gland form a thread pair to seal packing.
The hydraulic stop valve reset by the spring further comprises a valve opening pointer, wherein the valve opening pointer is located inside the valve cover support and is fixedly installed on the piston valve rod.
Preferably, an electric signal switch can be installed between the piston valve rod and the valve cover bracket, and the electric signal switch can be used as a monitored information source to provide electric signal output.
The utility model has the advantages of it is following:
the structure is compact, remote control operation can be carried out, and the stop valve can be in a closed state under the condition of controlling hydraulic pressure loss (power loss).
Drawings
Fig. 1 is the utility model relates to a marine spring replacement's hydraulic stop valve section schematic diagram.
Detailed Description
The technical contents, structural features, and objects and functions achieved by the present invention will be described in detail by way of embodiments with reference to the accompanying drawings.
As shown in fig. 1, for the utility model provides a marine spring reset's hydraulic stop valve contains: a shut-off valve assembly; a piston valve stem 3; a hydraulic drive assembly; the packing gland 10 is provided with threads on the outer surface; and a filler 11.
Wherein the shut-off valve assembly comprises: a valve body 1, on which an inlet channel and an outlet channel are respectively arranged (as shown in fig. 1, specifically, the left side is an inlet channel 12, and the right side is an outlet channel 13); the valve clack 2 is arranged at the joint of an inlet channel 12 and an outlet channel 13 of the valve body 1; the valve cover bracket 4 is designed to be hollow in the middle, flanges are arranged at the upper end and the lower end, and the lower end flange is fixedly connected with the valve body 1.
Wherein the hydraulic drive assembly comprises: the hydraulic cylinder 6 is fixedly arranged on the upper end flange of the valve cover bracket 4; a disc spring 7 disposed inside the hydraulic cylinder 6; and the oil cylinder cover 8 is fixedly arranged at the top of the hydraulic cylinder 6.
The hydraulic drive assembly further includes: and the hydraulic joint 5 is arranged on the hydraulic cylinder 6 and is used for inputting hydraulic oil to the hydraulic cylinder 6.
Wherein, piston valve rod 3 sets up in valve body 1, and its bottom and valve clack 2 fixed connection constitute the stop valve jointly as the valve rod with the stop valve subassembly, valve gap support 4 and oil cylinder lid 8 are run through in proper order to the top of piston valve rod 3, constitute hydraulic drive device jointly as hydro-cylinder piston and hydraulic drive device subassembly.
The bottom of the hydraulic cylinder 6 is provided with a piston ring 14 which is fixedly connected with the piston valve rod 3.
Wherein the disc spring 7 is arranged inside the hydraulic cylinder 6 and between the piston ring 14 and the cylinder head 8, and the cylinder head 8 provides the disc spring 7 with a precompression amount.
The valve opening pointer 9 is positioned inside the valve cover bracket 4, is fixedly installed on the piston valve rod 3, and can directly observe the opening and closing position of the valve from the outside of the piston valve rod.
Wherein, the packing 11 is installed and fixed in the gap between the piston valve rod 3 and the flange at the lower end of the valve cover bracket 4. The inner side surface of the lower end flange is provided with threads to form a thread pair with the packing gland 10, and the packing 11 can be compressed by rotating the packing gland 10 so as not to leak.
Preferably, an electrical signal switch can be installed between the piston valve rod 3 and the valve cover bracket 4, and the electrical signal switch can be used as a monitored information source to provide electrical signal output.
When the hydraulic stop valve is used, hydraulic oil enters the hydraulic cylinder 6 through the hydraulic joint 5, the upward pressure of the hydraulic oil overcomes the spring force of the disc spring 7, acts on the piston ring 14, pushes the piston valve rod 3 upward, and the piston valve rod 3 drives the valve clack 2 to move upward, so that the valve is opened; after the hydraulic oil is led out, the downward spring force of the disc spring 7 acts on the piston ring 14 to push the piston valve rod 3 downward, and the piston valve rod 3 drives the valve clack 2 to move downward, so that the valve is closed.
To sum up, the utility model provides a spring-return's hydraulic stop valve only needs provide power when the valve is opened, and hydraulic oil makes the valve open promptly, only relies on the elasticity that belleville spring 7 provided just can make the valve close, can remote control operation to can make the stop valve be in the closed condition under the condition of controlling hydraulic pressure decompression (losing electricity). Because the utility model provides a hydraulic stop valve adopts single hydraulic circuit, makes hydraulic control easy operation, has technique and cost advantage, has spreading value.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A spring-return hydraulic shut-off valve, comprising: a shut-off valve assembly; a piston valve stem; a hydraulic drive assembly; a disc spring;
wherein the shut-off valve assembly comprises: a valve body; a valve flap; a valve cover bracket;
wherein the hydraulic drive assembly comprises: the bottom of the hydraulic cylinder is provided with a piston ring, and the piston ring is fixedly connected with a piston valve rod; the oil cylinder cover is fixedly arranged at the top of the hydraulic cylinder;
the top of the piston valve rod penetrates through a valve cover support and an oil cylinder cover in sequence and is used as an oil cylinder piston to form a hydraulic driving device together with a hydraulic driving device assembly;
the disc spring is arranged inside the hydraulic cylinder and between the piston ring and the cylinder cover.
2. The spring-return hydraulic shut-off valve of claim 1, wherein the hydraulic drive assembly further comprises a hydraulic fitting disposed on the hydraulic cylinder.
3. A spring-return hydraulic shut-off valve according to claim 1, characterised in that the valve body is provided with an inlet passage and an outlet passage.
4. A spring-return hydraulic shut-off valve according to claim 3, characterised in that the flap is arranged at the junction of the inlet and outlet passages of the valve body.
5. The spring-return hydraulic stop valve as claimed in claim 1, wherein the valve cover bracket is hollow in the middle and has flanges at both the upper and lower ends.
6. The spring-return hydraulic stop valve of claim 5, wherein the upper end flange of the bonnet support is fixedly provided with a hydraulic cylinder, and the lower end flange is fixedly connected with the valve body.
7. The spring-return hydraulic shut-off valve of claim 6, further comprising a packing fixed in the gap between the piston stem and the lower end flange of the bonnet mount.
8. The spring-return hydraulic shut-off valve of claim 7, further comprising a gland having threads on an outer surface thereof.
9. The spring-return hydraulic stop valve of claim 8, wherein the inner surface of the lower flange of the bonnet bracket is provided with threads to form a thread pair with the packing gland to seal the packing.
10. The spring-return hydraulic stop valve of claim 5, further comprising a valve opening indicator located within the bonnet support and mounted on the piston stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456043.4U CN213655741U (en) | 2020-10-30 | 2020-10-30 | Hydraulic stop valve with reset spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456043.4U CN213655741U (en) | 2020-10-30 | 2020-10-30 | Hydraulic stop valve with reset spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655741U true CN213655741U (en) | 2021-07-09 |
Family
ID=76705460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022456043.4U Active CN213655741U (en) | 2020-10-30 | 2020-10-30 | Hydraulic stop valve with reset spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655741U (en) |
-
2020
- 2020-10-30 CN CN202022456043.4U patent/CN213655741U/en active Active
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| GR01 | Patent grant |