CN209145840U - A kind of pressure differential detection valve - Google Patents
A kind of pressure differential detection valve Download PDFInfo
- Publication number
- CN209145840U CN209145840U CN201821948108.3U CN201821948108U CN209145840U CN 209145840 U CN209145840 U CN 209145840U CN 201821948108 U CN201821948108 U CN 201821948108U CN 209145840 U CN209145840 U CN 209145840U
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- CN
- China
- Prior art keywords
- pump housing
- steel ball
- sealed steel
- spring
- differential detection
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Abstract
The utility model discloses a kind of pressure differential detection valve, including the pump housing, the old oily pumpback mouth of sealed steel ball, spring, automobile and the internal liquid entrance for being connected to exterior line interface are provided in the pump housing, the sealed steel ball is connected to spring；When, there are when pressure difference, the spring pushes sealed steel ball to flow to the old oily pumpback mouth of automobile, and otherwise the pump housing pressure supply pushes sealed steel ball to be connected to internal liquid entrance between the pump housing and exterior line interface.Compared to traditional technology, the present apparatus is not necessarily to artificial judgment, can arbitrarily access external pipe and the positive and negative flow direction without distinguishing pipeline, exterior line liquid flow direction can be told automatically by the combination of sealed steel ball and spring, so as to normally complete fluid exchange.
Description
Technical field
The utility model relates to a kind of pressure differential detection valves.
Background technique
In oil pump body, since class of liquids needs, it usually needs with exchanging liquid in exterior line, exchanging at present
When, it is necessary first to what artificial judgment exterior line executed is drawing liquid or fluid injection, to prevent liquid flow to generation mistake, the judgement
Clearly one of more complicated process, industrially more waste of manpower and time.
Utility model content
To solve the above-mentioned problems, the purpose of the utility model is to provide a kind of pressure differential detection valves, are not necessarily to artificial judgment, lead to
The combination for crossing sealed steel ball and spring can tell exterior line liquid flow direction automatically, hand over so as to normally complete liquid
It changes.
In order to make up for the deficiencies of the prior art, the utility model embodiment the technical solution adopted is that:
A kind of pressure differential detection valve, including the pump housing are provided with the old oily pumpback mouth of sealed steel ball, spring, automobile in the pump housing
With the internal liquid entrance for being connected to exterior line interface, the sealed steel ball is connected to spring；When the pump housing and outside
There are when pressure difference between pipe interface, the spring pushes sealed steel ball to flow to the old oily pumpback mouth of automobile, the otherwise pump housing pressure supply
Sealed steel ball is pushed to be connected to internal liquid entrance.
Further, liquid-conveying ducts are additionally provided in the pump housing, the internal liquid entrance, sealed steel ball and spring are equal
It is set on liquid-conveying ducts.
Further, the filtering for the liquid being passed through for filtration treatment from internal liquid entrance is additionally provided in the pump housing
Device, the filter are set between internal liquid entrance and liquid-conveying ducts.
Further, set screw is additionally provided on the pump housing, the sealed steel ball is connected by set screw and the pump housing
It connects.
Further, the pump housing is made of aluminum material.
The one or more technical solutions provided in the utility model embodiment, at least have the following beneficial effects: and are based on
The cooperation of sealed steel ball and spring, when between the pump housing and exterior line interface there are when pressure difference, as fluid injection, the spring
It will push sealed steel ball and flow to the old oily pumpback mouth of automobile, while sealed steel ball can be squeezed upwards in pump body liquid flow, conversely,
Then spring not will push sealed steel ball, but push sealed steel ball by the pump body pressure supply to connect with exterior line interface
It is logical, it is seen that the pipeline flow-direction for being determined liquid automatically according to hydraulic pressure difference using sealed steel ball and spring is connected according to hydraulic automatic shutter
Corresponding channel is led to, therefore the present apparatus is not necessarily to artificial judgment, can arbitrarily access external pipe and without distinguishing pipeline just
Negative flow direction can tell exterior line liquid flow direction by the combination of sealed steel ball and spring, so as to normal complete automatically
At fluid exchange.
Detailed description of the invention
The utility model preferred embodiment is provided, with reference to the accompanying drawing the embodiments of the present invention are described in detail.
Fig. 1 is the first structure figure of the utility model embodiment；
Fig. 2 is second structure chart of the utility model embodiment；
Fig. 3 is the cross-sectional view of the utility model embodiment；
Fig. 4 is the C-C sectional view of Fig. 3；
Fig. 5 is the section B-B figure of Fig. 3.
Specific embodiment
- Fig. 5 referring to Fig.1, the embodiments of the present invention provide a kind of pressure differential detection valve, including the pump housing 100, the pump
Be provided in body 100 the old oily pumpback mouth 130 of sealed steel ball 110, spring 120, automobile with for being connected to exterior line interface 140
Internal liquid entrance 150, the sealed steel ball 110 are connected to spring 120；When the pump housing 100 and exterior line interface 140
Between there are when pressure difference, the spring 120 pushes sealed steel ball 110 to flow to the old oily pumpback mouth 130 of automobile, otherwise the pump housing 100
Pressure supply pushes sealed steel ball 110 to be connected to internal liquid entrance 150.
In the present embodiment, an actually exterior line may have multiple interfaces, and some interfaces have pressure difference and have
Interface does not have, but in any case, is suitable for above-mentioned principle；Cooperation based on sealed steel ball 110 and spring 120, when described
There are when pressure difference between the pump housing 100 and exterior line interface 140, as fluid injection, the spring 120 will push the stream of sealed steel ball 110
To the old oily pumpback mouth 130 of automobile, while sealed steel ball 110 can be squeezed in 100 internal liquid of pump housing flow direction, conversely, then spring
120 not will push sealed steel ball 110, but push sealed steel ball 110 to connect with exterior line by the 100 inside pressure supply of the pump housing
Mouth 140 is connected to, it is seen that the pipeline flow-direction for determining liquid automatically according to hydraulic pressure difference using sealed steel ball 110 and spring 120, according to liquid
Pressure automatic shutter is communicated to corresponding channel, therefore the present apparatus is not necessarily to artificial judgment, can arbitrarily access external pipe and be not necessarily to
The positive and negative flow direction for distinguishing pipeline, can tell exterior line liquid by the combination of sealed steel ball 110 and spring 120 automatically
Body flow direction, so as to normally complete fluid exchange.
Further, the embodiments of the present invention additionally provide a kind of pressure differential detection valve, wherein in the pump housing 100
Liquid-conveying ducts 160 are additionally provided with, the internal liquid entrance 150, sealed steel ball 110 and spring 120 are all set in liquid-conveying ducts
On 160.In the present embodiment, liquid-conveying ducts 160 can be used as the channel of liquid flowing, not limit flow direction, can be perfect
The movement of sealed steel ball 110 and spring 120 in the case where there are differential pressure conditions is adapted to, while in no pressure difference, also can be taken by the pump housing 100
Sealed steel ball 110 is transported on internal liquid entrance 150 by internal pressure, very convenient effective.
Further, the embodiments of the present invention additionally provide a kind of pressure differential detection valve, wherein in the pump housing 100
It is additionally provided with the filter for the liquid being passed through for filtration treatment from internal liquid entrance 150, the filter is set to inside
Between liquid inlet 150 and liquid-conveying ducts 160.In the present embodiment, filter can be filtered after exchanging liquid is passed through,
It to which exchanging liquid quality can be improved, while being also prevented from exchanging liquid and being passed directly to liquid-conveying ducts 160, such case may
It causes liquid stream to import rapidly, evil can be detrimental to for the pump housing 100.
Further, the embodiments of the present invention additionally provide a kind of pressure differential detection valve, wherein on the pump housing 100
It is additionally provided with set screw 170, the sealed steel ball 110 is connect by set screw 170 with the pump housing 100.In the present embodiment,
The stability of sealed steel ball 110 can be improved in set screw 170, connect it with the pump housing 100, passes through spring in any case in this way
120 push sealed steel ball 110, always connect with the pump housing 100, are not in displacement or other fortuitous events, safety
Stability is preferable.
Further, the embodiments of the present invention additionally provide a kind of pressure differential detection valve, wherein the pump housing 100 is adopted
It is made of aluminum material.In the present embodiment, due to use aluminum material make, the pump housing 100 have preferable leakproofness and
Physical stability.
The preferred embodiment of the utility model and basic principle is discussed in detail in the above content, but the utility model is simultaneously
It is not limited to above embodiment, those skilled in the art should be recognized that in the premise without prejudice to the spirit of the present invention
Under also have various equivalent variations and replacement, these equivalent variations and replacement both fall within the scope of the claimed invention
It is interior.
Claims (5)
1. a kind of pressure differential detection valve, it is characterised in that: including the pump housing (100), be provided with sealed steel ball in the pump housing (100)
(110), the old oily pumpback mouth (130) of spring (120), automobile and the internal liquid entrance for being connected to exterior line interface (140)
(150), the sealed steel ball (110) is connected to spring (120)；It is deposited when between the pump housing (100) and exterior line interface (140)
In pressure difference, the spring (120) pushes sealed steel ball (110) to flow to the old oily pumpback mouth (130) of automobile, otherwise the pump housing
(100) pressure supply pushes sealed steel ball (110) to be connected to internal liquid entrance (150).
2. a kind of pressure differential detection valve according to claim 1, it is characterised in that: be additionally provided with and lead in the pump housing (100)
Liquid channel (160), the internal liquid entrance (150), sealed steel ball (110) and spring (120) are all set in liquid-conveying ducts
(160) on.
3. a kind of pressure differential detection valve according to claim 2, it is characterised in that: be additionally provided with use in the pump housing (100)
In the filter for the liquid that filtration treatment is passed through from internal liquid entrance (150), the filter is set to internal liquid entrance
(150) between liquid-conveying ducts (160).
4. a kind of pressure differential detection valve according to claim 1, it is characterised in that: it is fixed to be additionally provided on the pump housing (100)
Position screw (170), the sealed steel ball (110) are connect by set screw (170) with the pump housing (100).
5. a kind of pressure differential detection valve according to claim 1 to 4, it is characterised in that: the pump housing (100) uses aluminium
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821948108.3U CN209145840U (en) | 2018-11-23 | 2018-11-23 | A kind of pressure differential detection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821948108.3U CN209145840U (en) | 2018-11-23 | 2018-11-23 | A kind of pressure differential detection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145840U true CN209145840U (en) | 2019-07-23 |
Family
ID=67287209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821948108.3U Active CN209145840U (en) | 2018-11-23 | 2018-11-23 | A kind of pressure differential detection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209145840U (en) |
-
2018
- 2018-11-23 CN CN201821948108.3U patent/CN209145840U/en active Active
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