CN205298112U - Stacked liquid -control unidirectional valve - Google Patents
Stacked liquid -control unidirectional valve Download PDFInfo
- Publication number
- CN205298112U CN205298112U CN201521032038.3U CN201521032038U CN205298112U CN 205298112 U CN205298112 U CN 205298112U CN 201521032038 U CN201521032038 U CN 201521032038U CN 205298112 U CN205298112 U CN 205298112U
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- China
- Prior art keywords
- valve body
- valve
- inner chamber
- plug
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic system component technical field especially relates to a stacked liquid -control unidirectional valve, which comprises the following components: a valve body, valve body one side is equipped with the moving valve, and the opposite side is equipped with the end cap, the inner chamber middle part of valve body is equipped with the case, be equipped with inlet port and oil outlet with the inner chamber intercommunication on the valve body. The utility model discloses avoid the case to damage because of the friction in long -time the use to cause the weeping existing, can effectively prolong the life of check valve, through plug and valve body inner chamber threaded connection, the installation and the dismantlement of the moving valve of being convenient for to the reliability of connecting has been increased.
Description
Technical field
This utility model relates to hydraulic system element technical field, particularly relates to a kind of stacking type hydraulic control check valve.
Background technology
Check valve is that fluid can only flow along water inlet, and outlet medium but cannot reflux, and is commonly called as check valve. Check valve is also known as check-valves or non-return valve. For hydraulic system prevents oil stream reverse flow, or for pneumatic system prevents compression air reverse flow. At present, the piston having check valve is split type, is made up of left and right two parts, and two Split pistons are respectively acting on left and right two ball valves, are provided with external control oilhole between two Split pistons, and the closed cavity between external control oilhole and two Split pistons communicates. But, above-mentioned stacking type hydraulic control check valve of the prior art, piston in the middle part of valve body is in moving back and forth for a long time, its intact sealing cannot be ensured, the phenomenon of leakage easily occurs, liquid is interconnected in the cavity of ball valve place, left and right two, causes scrapping of stacking type hydraulic control check valve.
Being based on above-mentioned consideration, this utility model devises a kind of stacking type hydraulic control check valve, it is possible to multiple stage is ground rubber-roller machine and carries out collective's dust suction and using electricity wisely, save placing space, reduces buffings pollution to environment in indoor.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, adapts to reality need, it is provided that a kind of stacking type hydraulic control check valve.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
The utility model discloses a kind of stacking type hydraulic control check valve, including valve body, described valve body side is provided with moving valve, and opposite side is provided with plug, is provided with spool in the middle part of the inner chamber of described valve body, and described valve body is provided with the fuel feed hole with inner space and oil outlet.
Described moving valve includes the screw plug threadeded with body cavity, is provided with spring base inside described screw plug, and described spring base is provided with spring, and the spring other end is connected with valve seat.
Described valve seat mates slip with body cavity.
The tapered structure in described spool two ends, slip is mated at middle part with body cavity.
Described plug and body cavity are threaded connection, and described plugged end is provided with the limiting section for stoping spool to move right.
Described valve body and plug junction are provided with O-ring seals.
The beneficial effects of the utility model are in that:
1. this utility model avoids spool to damage because of friction in long-time use, thus causing leakage existing, it is possible to effectively extend the service life of check valve;
2. this utility model is threadeded with body cavity by screw plug, it is simple to the installation of moving valve and dismounting, and adds the reliability of connection.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model stacking type hydraulic control check valve.
In figure, 1 valve body, 2 moving valves, 21 screw plugs, 22 spring bases, 23 springs, 24 valve seats, 3 plugs, 4 spools, 5 fuel feed holes, 6 oil outlets, 7 sealing rings.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated:
Referring to Fig. 1.
The utility model discloses a kind of stacking type hydraulic control check valve, described valve body 1 side is provided with moving valve 2, opposite side is provided with plug 3, it is provided with spool 4 in the middle part of the inner chamber of described valve body 1, described valve body 1 is provided with the fuel feed hole 5 with inner space and oil outlet 6, fluid is entered valve body 1 inner chamber by fuel feed hole 5, when oil liquid pressure is more than the elastic force of moving valve 2, moving valve 2 moves left to diagram and makes fuel feed hole 5 connect with oil outlet 6, when oil liquid pressure is less than the elastic force of moving valve 2, moving valve 2 resets, oil outlet 6 is closed, prevent from flowing backwards, simultaneously, prevent spool 4 from being released inner chamber by oil liquid pressure by arranging plug 3 at valve body 1 opposite side.
Described moving valve 2 includes the screw plug 21 being connected with valve body 1 thread in inner cavity, it is provided with spring base 22 inside described screw plug 21, described spring base 22 is provided with spring 23, spring 23 other end is connected with valve seat 24, screw plug 21 is threadedly attached on valve body 1 inner chamber, it is easy to installation and the dismounting of moving valve 2, moving valve 2 can be made when oil pressure changes, oil outlet 6 to be closed or be opened by spring base 22 and spring 23.
Described valve seat 24 mates slip with valve body 1 inner chamber, and in order to ensure that valve seat 24 can ensure that the refluence of fluid, valve seat 24 and valve body 1 match.
The tapered structure in described spool 4 two ends, slip is mated with valve body 1 inner chamber in middle part.
Described plug 3 is threaded connection with valve body 1 inner chamber, described plug 3 end is provided with the limiting section 31 for stoping spool 4 to move right, and plug 3 is threadedly attached on the inner chamber of valve body 1, it is simple to the installation of plug 3 and dismounting, prevent spool 4 from moving right by limiting section 31, skid off inner chamber.
Described valve body 1 is provided with O-ring seals 7 with plug 3 junction, strengthens the sealing of plug 3 and valve body 1 by arranging sealing ring 7.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing this utility model description and accompanying drawing content to make or be directly or indirectly used in relevant technical field, all in like manner includes in scope of patent protection of the present utility model.
Claims (4)
1. a stacking type hydraulic control check valve, including valve body (1), it is characterized in that: described valve body (1) side is provided with moving valve (2), opposite side is provided with plug (3), spool (4) it is provided with in the middle part of the inner chamber of described valve body (1), described valve body (1) is provided with the fuel feed hole (5) with inner space and oil outlet (6), described moving valve (2) includes the screw plug (21) being connected with valve body (1) thread in inner cavity, described screw plug (21) inner side is provided with spring base (22), described spring base (22) is provided with spring (23), spring (23) other end is connected with valve seat (24), described valve seat (24) can mate slip in the inner chamber of valve body (1).
2. stacking type hydraulic control check valve according to claim 1, it is characterised in that: the tapered structure in described spool (4) two ends, slip is mated with valve body (1) inner chamber in middle part.
3. stacking type hydraulic control check valve according to claim 1, it is characterised in that: described plug (3) and valve body (1) inner chamber are threaded connection, and described plug (3) end is provided with the limiting section (31) for stoping spool (4) to move right.
4. stacking type hydraulic control check valve according to claim 3, it is characterised in that: described valve body (1) and plug (3) junction are provided with O-ring seals (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032038.3U CN205298112U (en) | 2015-12-14 | 2015-12-14 | Stacked liquid -control unidirectional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032038.3U CN205298112U (en) | 2015-12-14 | 2015-12-14 | Stacked liquid -control unidirectional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298112U true CN205298112U (en) | 2016-06-08 |
Family
ID=56430674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521032038.3U Expired - Fee Related CN205298112U (en) | 2015-12-14 | 2015-12-14 | Stacked liquid -control unidirectional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018119829A1 (en) * | 2016-12-29 | 2018-07-05 | 李志华 | Purification apparatus |
-
2015
- 2015-12-14 CN CN201521032038.3U patent/CN205298112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018119829A1 (en) * | 2016-12-29 | 2018-07-05 | 李志华 | Purification apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20171214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |