CN207246495U - The double-valve structure of hydraulic pump terminal valve - Google Patents
The double-valve structure of hydraulic pump terminal valve Download PDFInfo
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- CN207246495U CN207246495U CN201720193984.9U CN201720193984U CN207246495U CN 207246495 U CN207246495 U CN 207246495U CN 201720193984 U CN201720193984 U CN 201720193984U CN 207246495 U CN207246495 U CN 207246495U
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- valve
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- outlet valve
- import
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Abstract
The utility model provides a kind of double-valve structure of hydraulic pump terminal valve, including pump head, export valve group, import valve group, export valve deck, suction valve cover and anti-siphon spring, a fluid passage penetrated through vertically is equipped with the pump head, outlet valve seat and import valve seat are equipped with the fluid passage, the outlet valve group is against in outlet valve seat, the import valve group is against on import valve seat, the top of the outlet valve deck fluid-tight passage, the bottom of the suction valve cover fluid-tight passage, the anti-siphon spring one end is against outlet valve and covers, the other end is against in outlet valve group, the lower part of the fluid passage is equipped with feed inlet, the top of the fluid passage is equipped with discharge port.The double-valve structure of hydraulic pump terminal valve described in the utility model makes pump head dress detachable maintaining more convenient, delivery precision higher.
Description
Technical field
The utility model belongs to hydraulic metering pump technical field, more particularly, to a kind of bivalve knot of hydraulic pump terminal valve
Structure.
Background technology
The metering pump species used at present is various, and wherein hydraulic diaphragm metering pump is most widely used, applied to oil,
The fields such as power plant, natural gas, chemical industry, atomic energy technology, papermaking, food, medicine, environmental protection, sewage disposal, metering pump have conveying
The advantages that amount is accurate, adjustable, is fluid delicate metering and the ideal equipment launched, deep-etching is responsible in technical process
Property, the metering addition task of toxic, high viscosity and high-pressure medium.Check valve assembling inconvenience of the prior art, influences to convey
Precision.
The content of the invention
In view of this, the utility model is directed to a kind of double-valve structure of hydraulic pump terminal valve, makes dress detachable maintaining
It is more convenient, delivery precision higher.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of double-valve structure of hydraulic pump terminal valve, including pump head, outlet valve group, import valve group, outlet valve deck, import
Valve deck and anti-siphon spring, the pump head is interior to be equipped with a fluid passage penetrated through vertically, and outlet is equipped with the fluid passage
Valve seat and import valve seat, the outlet valve group are against in outlet valve seat, and the import valve group is against on import valve seat, the outlet
The top of valve deck fluid-tight passage, the bottom of the suction valve cover fluid-tight passage, the anti-siphon spring one end are against
Outlet valve covers, and the other end is against in outlet valve group, and the lower part of the fluid passage is equipped with feed inlet, the fluid passage it is upper
Portion is equipped with discharge port.
Further, the outlet valve group includes outlet valve core, the first floating ball, the second floating ball and the first floating ball seat, described
Outlet valve valve core case is equipped with outlet valve core, first floating ball is arranged on outlet valve valve core case, the first floating ball seat and
Outlet valve core connects, and is arranged on above the first floating ball, and second floating ball is located on the first floating ball seat, the anti-siphon bullet
Spring is against on the second floating ball.
Further, the import valve group includes inlet spool, the 3rd floating ball, the 4th floating ball, cartridge cover, valve core housing and the
Two floating ball seats, the inlet spool is interior to be equipped with outlet valve valve core case, and the 3rd floating ball is arranged on inlet valve valve core case, described
Second floating ball seat is connected with inlet spool, and is arranged on above the 3rd floating ball, and the spool is set on the second floating ball seat,
4th floating ball is located on floating ball seat, and the cartridge cover is located at the top of inlet spool.
Further, the inner wall at the fluid passage both ends is equipped with the groove for accommodating valve bonnet seal ring.
Further, O-ring seals are equipped between the outlet valve group and outlet valve seat.
Further, O-ring seals are equipped between the import valve group and import valve seat.
Relative to the prior art, the double-valve structure of hydraulic pump terminal valve described in the utility model has the advantage that：
The improved internal structure of double-valve structure of hydraulic pump terminal valve described in the utility model, makes assembly technology simpler
It is single, and increased anti-siphon spring, prevent because charging precision caused by siphonage reduces.
Brief description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form the improper restriction to the utility model.
In attached drawing：
Fig. 1 is the structure diagram described in the utility model embodiment；
Fig. 2 is the structure diagram of the outlet valve group described in the utility model embodiment；
Fig. 3 is the structure diagram of the import valve group described in the utility model embodiment.
Description of reference numerals：
1- pump heads；2- outlet valve seats；3- exports valve group；The first floating balls of 301-；The second floating balls of 302-；The first floating balls of 303-
Seat；304- outlet valve cores；305- outlet valve valve core cases；The anti-siphon springs of 4-；5- exports valve deck；6- discharge ports；7- fluid passages；
8- import valve seats；9- import valve groups；901- the second floating ball seats；902- valve core housings；903- cartridge covers；The 4th floating balls of 904-；905-
3rd floating ball；906- inlet spools；；907- outlet valve valve core cases；10- feed inlets；11- suction valve covers.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the utility model.In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The double-valve structure of hydraulic pump terminal valve, including pump head 1, outlet valve group 3, import valve group 9, outlet valve deck 5, import
Valve deck 11 and anti-siphon spring 4, the pump head 1 is interior to be equipped with a fluid passage 7 penetrated through vertically, is set in the fluid passage 7
There are outlet valve seat 2 and import valve seat 8, the outlet valve group 3 is against in outlet valve seat 2, the outlet valve group 3 and outlet valve seat 2
Between be equipped with O-ring seals, the import valve group 9 is against on import valve seat 8, is set between the import valve group 9 and import valve seat 8
There are O-ring seals, the top of the outlet 5 fluid-tight passage 7 of valve deck, the bottom of the 11 fluid-tight passage 7 of suction valve cover
End, described anti-4 one end of siphon spring are against on outlet valve deck 5, and the other end is against in outlet valve group 3, under the fluid passage 7
Portion is equipped with feed inlet 10, and the top of the fluid passage 7 is equipped with discharge port 6.The outlet valve group 3 includes outlet valve core 304, the
One floating ball 301, the second floating ball 302 and the first floating ball seat 303, the outlet valve core 304 is interior to be equipped with outlet valve valve core case 305, institute
The first floating ball 301 to be stated to be arranged on outlet valve valve core case 305, the first floating ball seat 303 is connected with outlet valve core 304, and
The top of the first floating ball 301 is arranged on, second floating ball 302 is located on the first floating ball seat 303, and the anti-siphon spring 4 is against
On second floating ball 302.The import valve group 9 include inlet spool 906, the 3rd floating ball 905, the 4th floating ball 904, cartridge cover 903,
902 and second floating ball seat 901 of valve core housing, the inlet spool 906 is interior to be equipped with outlet valve valve core case 907, the 3rd floating ball 905
It is arranged on inlet valve valve core case 907, the second floating ball seat 901 is connected with inlet spool 906, and is arranged on the 3rd floating ball
905 tops, the valve core housing 902 are arranged on the second floating ball seat 901, and the 4th floating ball 904 is located at the second floating ball seat 901
On, the cartridge cover 902 is located at the top of inlet spool 906.The inner wall at 7 both ends of fluid passage, which is equipped with, accommodates valve bonnet seal ring
12 groove.
The double-valve structure of hydraulic pump terminal valve described in the utility model can only make material enter fluid from feed inlet 10
Passage 7, is discharged from discharge port 6, when material enter fluid passage 7 in, the 3rd floating ball 905, the 4th floating ball 904, the first floating ball 301
Risen successively under buoyancy with the second floating ball 302, connect fluid passage 7, when pump no longer works, anti-siphon spring 4
The second floating ball 302 is quickly against on the first floating ball seat 303, prevent material from flowing back due to siphonage.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (6)
1. the double-valve structure of hydraulic pump terminal valve, it is characterised in that：Including pump head (1), outlet valve group (3), import valve group
(9), valve deck (5), suction valve cover (11) and anti-siphon spring (4) are exported, the stream penetrated through vertically is equipped with the pump head (1)
Body passage (7), the fluid passage (7) is interior to be equipped with outlet valve seat (2) and import valve seat (8), and the outlet valve group (3) is against out
On mouth valve seat (2), the import valve group (9) is against on import valve seat (8), outlet valve deck (5) the fluid-tight passage (7)
Top, the bottom of suction valve cover (11) the fluid-tight passage (7), described anti-siphon spring (4) one end are against outlet valve deck
(5) on, the other end is against in outlet valve group (3), and the lower part of the fluid passage (7) is equipped with feed inlet (10), and the fluid leads to
The top in road (7) is equipped with discharge port (6).
2. the double-valve structure of hydraulic pump terminal valve according to claim 1, it is characterised in that：The outlet valve group (3)
Including outlet valve core (304), the first floating ball (301), the second floating ball (302) and the first floating ball seat (303), the outlet valve core
(304) outlet valve valve core case (305) is equipped with, first floating ball (301) is arranged on outlet valve valve core case (305), described
First floating ball seat (303) is connected with outlet valve core (304), and is arranged on above the first floating ball (301), second floating ball
(302) it is located on the first floating ball seat (303), the anti-siphon spring (4) is against on the second floating ball (302).
3. the double-valve structure of hydraulic pump terminal valve according to claim 1, it is characterised in that：The import valve group (9)
It is floating including inlet spool (906), the 3rd floating ball (905), the 4th floating ball (904), cartridge cover (903), valve core housing (902) and second
Ball seat (901), is equipped with outlet valve valve core case (907) in the inlet spool (906), the 3rd floating ball (905) be arranged on into
On mouth valve core seat (907), the second floating ball seat (901) is connected with inlet spool (906), and is arranged on the 3rd floating ball
(905) top, the valve core housing (902) are arranged on the second floating ball seat (901), and it is floating that the 4th floating ball (904) is located at second
On ball seat (901), the cartridge cover (902) is located at the top of inlet spool (906).
4. the double-valve structure of hydraulic pump terminal valve according to claim 1, it is characterised in that：The fluid passage (7)
The inner wall at both ends is equipped with the groove for accommodating valve bonnet seal ring (12).
5. the double-valve structure of hydraulic pump terminal valve according to claim 1, it is characterised in that：The outlet valve group (3)
O-ring seals are equipped between outlet valve seat (2).
6. the double-valve structure of hydraulic pump terminal valve according to claim 1, it is characterised in that：The import valve group (9)
O-ring seals are equipped between import valve seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720193984.9U CN207246495U (en) | 2017-03-01 | 2017-03-01 | The double-valve structure of hydraulic pump terminal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720193984.9U CN207246495U (en) | 2017-03-01 | 2017-03-01 | The double-valve structure of hydraulic pump terminal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246495U true CN207246495U (en) | 2018-04-17 |
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ID=61875303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720193984.9U Active CN207246495U (en) | 2017-03-01 | 2017-03-01 | The double-valve structure of hydraulic pump terminal valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN207246495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742608A (en) * | 2018-04-28 | 2018-11-06 | 北京机械设备研究所 | A kind of brain wave acquisition electrode based on conduction liquid |
-
2017
- 2017-03-01 CN CN201720193984.9U patent/CN207246495U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742608A (en) * | 2018-04-28 | 2018-11-06 | 北京机械设备研究所 | A kind of brain wave acquisition electrode based on conduction liquid |
| CN108742608B (en) * | 2018-04-28 | 2020-11-27 | 北京机械设备研究所 | Electroencephalogram collecting electrode based on conducting liquid |
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