CN207349058U - A kind of valve body structure of air-driven hydraulic pump relief valve - Google Patents
A kind of valve body structure of air-driven hydraulic pump relief valve Download PDFInfo
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- CN207349058U CN207349058U CN201721100546.XU CN201721100546U CN207349058U CN 207349058 U CN207349058 U CN 207349058U CN 201721100546 U CN201721100546 U CN 201721100546U CN 207349058 U CN207349058 U CN 207349058U
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- valve body
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- hydraulic pump
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Abstract
A kind of valve body structure of air-driven hydraulic pump relief valve disclosed in the utility model, including valve body body, valve body body is respectively equipped with oil inlet and outlet, oil return opening and exhaust outlet, it is respectively equipped with valve body body into oil discharge passage, drainback passage and exhaust passage, connected into oil discharge passage with oil inlet and outlet, drainback passage is connected with oil return opening, exhaust passage is connected with exhaust outlet, it is correspondingly arranged into oil discharge passage and drainback passage, drainback passage is used to install valve rod assembly, valve rod assembly is used to control the break-make into oil discharge passage and oil return opening, the upper surface of valve body body is equipped with the avoid holes stretched out for the valve rod of valve rod assembly, the upper surface of valve body body is further opened with the rhone being connected with avoid holes, the axle envelope coordinated with valve stem seal is embedded with avoid holes.The utility model is simple and reasonable, water proof and dust proof effect is preferable.
Description
Technical field
Hydraulic pressure pump technical field is the utility model is related to, more particularly to a kind of valve body structure of air-driven hydraulic pump relief valve.
Background technology
Hydraulic pump be connect hydraulic oil container and hydraulic cylinder among necessary dynamical system, hydraulic pump is by the liquid in hydraulic oil container
Pressure oil pressurization is pumped in hydraulic cylinder, so as to fulfill the lift process of hydraulic cylinder.Hydraulic pump can be divided into by type of drive difference
Two kinds of electric hydraulic pump and air-driven hydraulic pump.In order to ensure hydraulic cylinder can smoothly reset, air-driven hydraulic pump is generally configured with back liquid
Function.When hydraulic cylinder needs to reset, the hydraulic oil in hydraulic cylinder can be back to hydraulic oil by the relief valve of air-driven hydraulic pump
In case.It specifically also can be found in " a kind of confession hydraulic pneumatic with liquid as disclosed in Application No. 201510140499.0
Hydraulic pump ".But the common deficiency of air-driven hydraulic pump is at present：Since the valve body of relief valve is normally located at hydraulic oil
Outside the fuel tank cap of case, and existing release valve body causes rainwater, dust to hold because its waterproof and dustproof structure setting is unreasonable
The book of Changes valve body is penetrated into the oil circuit to air-driven hydraulic pump, not only polluted hydraulic oil, but also can influence air-driven hydraulic pump
Service life.
Utility model content
The purpose of this utility model is that the defects of being directed to the prior art and deficiency, there is provided a kind of simple and reasonable, anti-
The valve body structure of the preferable air-driven hydraulic pump relief valve of water dust-proof effect.
To achieve the above object, the utility model uses following technical scheme.
A kind of valve body structure of air-driven hydraulic pump relief valve, including valve body body, the valve body body are respectively equipped with disengaging
Hydraulic fluid port, oil return opening and exhaust outlet, are respectively equipped with into oil discharge passage, drainback passage and exhaust passage in the valve body body, described
Connected into oil discharge passage with the oil inlet and outlet, the drainback passage is connected with the oil return opening, the exhaust passage with it is described
Exhaust outlet connects, described to be correspondingly arranged into oil discharge passage and the drainback passage, and the drainback passage is used to install valve rod assembly,
The valve rod assembly is used to control the break-make into oil discharge passage and the oil return opening, and the upper surface of the valve body body is equipped with
The avoid holes stretched out for the valve rod of the valve rod assembly, the upper surface of the valve body body is further opened with being connected with the avoid holes
The rhone connect, the axle envelope coordinated with the valve stem seal is embedded with the avoid holes.
Further, the upper surface of the valve body body is symmetrically arranged with two rhones.
Further, circular step groove is provided with the avoid holes, the axle envelope sealing is installed in the circular step
In groove.
Further, it is provided with gasket between the axle envelope and the circular step groove.
Further, the axle envelope include from bottom to top integration connection column portion and prismoid section, the rhone with
The slot bottom of one end that the avoid holes connect is flushed with the height of column portion upper surface.
The beneficial effects of the utility model are：The valve body structure of air-driven hydraulic pump relief valve provided by the utility model, leads to
The rhone for setting in the upper surface of valve body body and connecting with avoid holes is crossed, and axle envelope is embedded in avoid holes, in use, utilizing
Rhone can prevent accumulation of rainwater near avoid holes, so that the effect of waterproof has been effectively played, while axle envelope can also prevent
Only the impurity such as dust is penetrated into drainback passage, and in so avoiding hydraulic oil to be contaminated, but also effectively ensure that pneumatic
The whole service life of hydraulic pump.The utility model structure setting advantages of simple, it is easy to use, reliable.
Brief description of the drawings
Fig. 1 is the overall schematic cross-sectional view of the utility model.
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1.
Fig. 3 is the overall top view of the utility model.
In Fig. 1-3：1st, valve body body；2nd, oil inlet and outlet；3rd, exhaust outlet；4th, into oil discharge passage；5th, drainback passage；6th, it is vented
Passage；7th, avoid holes；8th, rhone；9th, circular step groove；10th, gasket；11st, axle envelope；111st, column portion；112nd, prismoid section.
Embodiment
The utility model will be further described below with reference to the accompanying drawings.
A kind of valve body structure of air-driven hydraulic pump relief valve as shown in Figure 1 to Figure 3, including valve body body 1, valve body body
1 is respectively equipped with oil inlet and outlet 2, oil return opening（Not shown in figure）And exhaust outlet 3, it is respectively equipped with into oil discharge passage in valve body body 1
4th, drainback passage 5 and exhaust passage 6, connect into oil discharge passage 4 with oil inlet and outlet 2, and drainback passage 5 is connected with oil return opening, exhaust
Passage 6 is connected with exhaust outlet 3, is correspondingly arranged into oil discharge passage 4 and drainback passage 5.Wherein, oil inlet and outlet 2 is used to connect hydraulic pressure
The cylinder barrel of cylinder, oil return opening, connect into oil discharge passage 4 with hydraulic oil container respectively, the gas passage of exhaust passage 6 and air-driven hydraulic pump
Connection, for being vented.
Drainback passage 5 is used to install valve rod assembly（Not shown in figure）, valve rod assembly is for controlling into oil discharge passage 4 with returning
The break-make of hydraulic fluid port, that is to say, that by controlling the operating state of valve rod assembly, can control into oil discharge passage 4 and oil return opening
On or off.
When needing to hydraulic pressure oil supply cylinder, the hydraulic oil in hydraulic oil container is under the action of air-driven hydraulic pump, by into fuel-displaced
Passage 4, oil inlet and outlet 2 are entered in the cylinder barrel of hydraulic cylinder, at this time drainback passage 5 and between oil discharge passage 4 in valve rod assembly
Control under be in dissengaged positions；When hydraulic cylinder resets, valve rod assembly makes drainback passage 5 and is turned on between oil discharge passage 4,
The hydraulic oil in the cylinder barrel of hydraulic cylinder is just back to liquid through oil inlet and outlet 2, into oil discharge passage 4, drainback passage 5 and oil return opening at this time
In pressure oil case.
The upper surface of valve body body 1 is equipped with the avoid holes 7 stretched out for the valve rod of valve rod assembly, the upper surface of valve body body 1
The rhone 8 being connected with avoid holes 7 is further opened with, the slot bottom of rhone 8 is inclined to set, specifically, the groove of rhone 8
Bottom with one end that avoid holes 7 connect to the other end in what height gradually reduced from being obliquely installed, to ensure that rainwater can be arranged smoothly
Go out, the axle envelope 11 coordinated with valve stem seal is embedded with avoid holes 7.
The valve body structure of air-driven hydraulic pump relief valve provided by the utility model, by being set in the upper surface of valve body body 1
The rhone 8 to connect with avoid holes 7 is put, and axle envelope 11 is embedded in avoid holes 7, in use, can prevent rain using rhone 8
Water is accumulated near avoid holes 7, so that the effect of waterproof has been effectively played, while axle envelope 11 also can prevent the impurity such as dust from oozing
Enter to drainback passage 5, in so avoiding hydraulic oil to be contaminated, but also effectively ensure that the entirety of air-driven hydraulic pump makes
Use the service life.
In the present embodiment, the upper surface of valve body body 1 is symmetrically arranged with two rhones 8, and drainage effect is more preferable.
In the present embodiment, circular step groove 9 is provided with avoid holes 7, the sealing of axle envelope 11 is installed in circular step groove 9,
Install more convenient.Preferably, gasket 10 is provided between axle envelope 11 and circular step groove 9, improves the utility model peace
Fill leakproofness.
In the present embodiment, axle envelope 11 includes column portion 111 and the prismoid section 112 of integration connection from bottom to top, rhone 8
The slot bottom of the one end to connect with avoid holes 7 is flushed with the height of 111 upper surface of column portion, so that waterproof effect is more preferable.
The above is only the better embodiment of the utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (5)
1. a kind of valve body structure of air-driven hydraulic pump relief valve, including valve body body, the valve body body are respectively equipped with into fuel-displaced
Mouthful, oil return opening and exhaust outlet, be respectively equipped with the valve body body into oil discharge passage, drainback passage and exhaust passage, it is described into
Oil discharge passage is connected with the oil inlet and outlet, and the drainback passage is connected with the oil return opening, the exhaust passage and the row
Gas port connects, described to be correspondingly arranged into oil discharge passage and the drainback passage, and the drainback passage is used to install valve rod assembly, institute
State valve rod assembly to be used to control the break-make into oil discharge passage and the oil return opening, the upper surface of the valve body body, which is equipped with, to be supplied
The avoid holes that the valve rod of the valve rod assembly stretches out, it is characterised in that：The upper surface of the valve body body be further opened with it is described
The rhone that avoid holes are connected, the axle envelope coordinated with the valve stem seal is embedded with the avoid holes.
2. the valve body structure of air-driven hydraulic pump relief valve according to claim 1, it is characterised in that：The valve body body
Upper surface is symmetrically arranged with two rhones.
3. the valve body structure of air-driven hydraulic pump relief valve according to claim 1, it is characterised in that：Set in the avoid holes
Circular step groove is equipped with, the axle envelope sealing is installed in the circular step groove.
4. the valve body structure of air-driven hydraulic pump relief valve according to claim 3, it is characterised in that：The axle envelope with it is described
Gasket is provided between circular step groove.
5. the valve body structure of air-driven hydraulic pump relief valve according to any one of claims 1 to 4, it is characterised in that：Institute
Stating axle envelope includes column portion and the prismoid section of integration connection from bottom to top, one end to connect with the avoid holes of the rhone
Slot bottom flushed with the height of column portion upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100546.XU CN207349058U (en) | 2017-08-30 | 2017-08-30 | A kind of valve body structure of air-driven hydraulic pump relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100546.XU CN207349058U (en) | 2017-08-30 | 2017-08-30 | A kind of valve body structure of air-driven hydraulic pump relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349058U true CN207349058U (en) | 2018-05-11 |
Family
ID=62412982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721100546.XU Active CN207349058U (en) | 2017-08-30 | 2017-08-30 | A kind of valve body structure of air-driven hydraulic pump relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207349058U (en) |
-
2017
- 2017-08-30 CN CN201721100546.XU patent/CN207349058U/en active Active
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