CN2916218Y - Direct-driving type high-pressure water-based unloading and overflow integrated valve - Google Patents
Direct-driving type high-pressure water-based unloading and overflow integrated valve Download PDFInfo
- Publication number
- CN2916218Y CN2916218Y CN 200620032264 CN200620032264U CN2916218Y CN 2916218 Y CN2916218 Y CN 2916218Y CN 200620032264 CN200620032264 CN 200620032264 CN 200620032264 U CN200620032264 U CN 200620032264U CN 2916218 Y CN2916218 Y CN 2916218Y
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- Prior art keywords
- valve
- direct
- unloading
- pressure
- overflow
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- Expired - Fee Related
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Abstract
The utility model discloses a direct-acting high-pressure water-based unloading overflow composite valve comprising a direct-acting overflow valve and an unloading valve. The valve body of the direct-acting overflow valve is connected with that of the unloading valve. The high and lower-pressure chambers of the direct-acting overflow valve are communicated with the valve chamber of the unloading valve through the high-and-lower pressure flow course. The valve core of the direct-acting overflow valve is sealed and matched with the high-pressure flow course and the valve core of the unloading valve is sealed and matched with the low-pressure flow course. The utility model is characterized in that: by integrating the direct-acting overflow valve and the unloading valve as a whole compactly, when rotating the screw rod of the unloading valve to close the valve core, the pressure of the hydraulic-pressure system is adjusted through the adjusting screw rod of the overflow valve. When the pressure is low, the overflow valve is of closing state. When the system pressure exceeds the set pressure, the overflow valve opens the sub-flow course. When the system is to be unloaded, only rotate the screw rod of the unloading valve to open the needle-shaped valve so as to communicate the high-and-lower pressure chambers of the overflow valve to unload the system.
Description
Technical field
The utility model relates to hydrovalve, especially relates to the water base off-load-overflow combined valve of direct-acting type high pressure.
Background technique
In Hydraulic Power Transmission System, straight ejector half relief valve and unloading valve are the most frequently used hydraulic element, advantages such as that straight ejector half relief valve and pin type unloading valve have is simple in structure, reliable operation, low cost of manufacture; Generally, two elements be split or be integrated on the blank, make system's stringing complexity, be not easy to install or manufacturing cost height, quality big.How the two effectively can be made up to overcome above-mentioned existing deficiency, up to the present to yet there are no the report of all relevant this respects.
The model utility content
The utility model purpose is to provide a kind of compact structure, cheap for manufacturing cost, the water base off-load-overflow combined valve of direct-acting type high pressure being convenient to install.
For achieving the above object, the utility model can be taked following technical proposals:
Water base off-load-the overflow combined valve of described direct-acting type high pressure, it comprises direct-acting overflow valve and unloading valve, the valve body of described direct-acting overflow valve is connected mutually with the valve body of unloading valve; The high and low pressure valve pocket of direct-acting overflow valve is connected with the valve pocket of unloading valve by the high and low pressure runner respectively; The spool of direct-acting overflow valve and described high pressure runner are sealed and matched, and the spool of unloading valve and described low pressure runner are sealed and matched.
Described unloading valve is the pin type unloading valve.
Advantage of the present utility model is described direct-acting overflow valve and unloading valve compactness are combined as a whole, be connected with the valve pocket of unloading valve respectively by the high and low pressure runner offered high and low pressure valve pocket direct-acting overflow valve, therefore, when rotation unloading valve screw rod is closed the needle-like spool, the pressure of hydraulic system is set up by the screw press of relief valve, when pressure was low, relief valve was in closed condition; When system pressure surpassed setting pressure, relief valve was opened shunting.When system needs off-load, as long as rotate the unloading valve screw rod needle valve is opened, can realize the high and low pressure chamber connection of relief valve is made the system unloaded purpose.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in the figure, the water base off-load-overflow combined valve of described direct-acting type high pressure comprises direct-acting overflow valve and pin type unloading valve, and the valve body 1 of described direct-acting overflow valve is connected mutually with the valve body 2 of pin type unloading valve; The high and low pressure valve pocket 3,4 of direct-acting overflow valve is connected with the valve pocket 7 of pin type unloading valve by high and low pressure runner 5,6 respectively; The spool 8 of direct-acting overflow valve when closing and described high pressure runner 5 be sealed and matched, the needle-like spool 9 of pin type unloading valve when closing and described low pressure runner 6 be sealed and matched.Be weight reduction, spring strut 10, push rod directional tube 11 in the direct-acting overflow valve all adopt nonmetallic material; For preventing the leakage of 5 liang of valve bodies of high pressure runner, 1,2 junctions, the high pressure runner 5 that is positioned on the valve body 1 is the shoulder hole of outside aperture greater than inner aperture; The high pressure runner 5 that is positioned on the valve body 2 takes interference fit to be connected for boss structure with shoulder hole.
Claims (2)
1, the water base off-load-overflow combined valve of a kind of direct-acting type high pressure, it comprises direct-acting overflow valve and unloading valve, it is characterized in that: the valve body of described direct-acting overflow valve (1) is connected mutually with the valve body (2) of unloading valve; The high and low pressure valve pocket of direct-acting overflow valve (3,4) is connected with the valve pocket (7) of unloading valve by high and low pressure runner (5,6) respectively; The spool of direct-acting overflow valve (8) is sealed and matched with described high pressure runner (5), and the spool of unloading valve (9) is sealed and matched with described low pressure runner (6).
2, combination brake switch and proporting according to claim 1 is characterized in that: described unloading valve is the pin type unloading valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032264 CN2916218Y (en) | 2006-06-12 | 2006-06-12 | Direct-driving type high-pressure water-based unloading and overflow integrated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032264 CN2916218Y (en) | 2006-06-12 | 2006-06-12 | Direct-driving type high-pressure water-based unloading and overflow integrated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916218Y true CN2916218Y (en) | 2007-06-27 |
Family
ID=38187128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620032264 Expired - Fee Related CN2916218Y (en) | 2006-06-12 | 2006-06-12 | Direct-driving type high-pressure water-based unloading and overflow integrated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916218Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657267A (en) * | 2019-11-15 | 2020-01-07 | 黄洪刚 | Unloading valve with overflow function |
| CN112696512A (en) * | 2020-12-21 | 2021-04-23 | 西安交通大学 | Adjustable oil spill valve and diaphragm hydrogen compressor for hydrogenation station |
-
2006
- 2006-06-12 CN CN 200620032264 patent/CN2916218Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657267A (en) * | 2019-11-15 | 2020-01-07 | 黄洪刚 | Unloading valve with overflow function |
| CN112696512A (en) * | 2020-12-21 | 2021-04-23 | 西安交通大学 | Adjustable oil spill valve and diaphragm hydrogen compressor for hydrogenation station |
| CN112696512B (en) * | 2020-12-21 | 2021-12-14 | 西安交通大学 | Adjustable oil spill valve and diaphragm hydrogen compressor for hydrogenation station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20140612 |