CN220134935U - Oil rail with one-way valve structure - Google Patents
Oil rail with one-way valve structure Download PDFInfo
- Publication number
- CN220134935U CN220134935U CN202321627518.9U CN202321627518U CN220134935U CN 220134935 U CN220134935 U CN 220134935U CN 202321627518 U CN202321627518 U CN 202321627518U CN 220134935 U CN220134935 U CN 220134935U
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- China
- Prior art keywords
- oil
- oil outlet
- rail body
- inner hole
- rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims 3
- 239000003921 oil Substances 0.000 abstract description 121
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to an oil rail with a one-way valve structure, which comprises a rail body, wherein an oil storage cavity is arranged in the rail body, a plug is arranged on the rail body corresponding to the end part position of the oil storage cavity, at least one oil inlet joint component is arranged on the rail body, the oil inlet joint component is kept normally communicated with the oil storage cavity, and at least one oil outlet one-way valve is arranged on the rail body and is in one-way communication with the oil storage cavity. The utility model reduces the pressure fluctuation in the oil storage cavity in the oil rail, and the one-way valve structure limits the one-way transmission of hydraulic oil.
Description
Technical Field
The utility model relates to an oil rail structure in an oil way system, and particularly discloses an oil rail with a one-way valve structure.
Background
The oil rail is arranged in the oil way system, high-pressure oil pressurized by the high-pressure pump is stored in the oil rail, and the oil rail is used as a container for storing the high-pressure oil. The current rail pressure has large fluctuation and is greatly influenced by the opening time, the frequency and the oil injection quantity of the valve end.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide an oil rail capable of reducing pressure fluctuation in the rail and avoiding the transmission of valve end pressure fluctuation to the rail end.
According to the technical scheme provided by the utility model, the oil rail with the one-way valve structure comprises a rail body, an oil storage cavity is arranged in the rail body, a plug is arranged on the rail body corresponding to the end part position of the oil storage cavity, at least one oil inlet joint component is arranged on the rail body, the oil inlet joint component is kept normally communicated with the oil storage cavity, and at least one oil outlet one-way valve is arranged on the rail body and is in one-way communication with the oil storage cavity.
Preferably, the oil inlet joint comprises an oil inlet joint, an oil inlet tightening nut and an oil inlet pipe; the oil inlet joint is fixed on the rail body, the oil inlet pipe is fixed on the oil inlet joint through the oil inlet tightening nut, the inner hole of the oil inlet pipe is communicated with the oil inlet of the rail body through the inner hole of the oil inlet joint, and the oil inlet of the rail body is communicated with the oil storage cavity.
Preferably, the oil outlet one-way valve comprises an oil outlet pipe, an oil outlet tightening nut, an oil outlet joint, a spring seat, a spring, a valve ball and a valve seat; the oil outlet connector is fixed on the rail body, the oil outlet pipe is fixed on the oil outlet connector through an oil outlet tightening nut, a valve seat is arranged below the oil outlet connector, an oil outlet is arranged on the rail body below the valve seat, the valve seat is provided with a concave conical surface, the oil outlet connector tightly presses the valve seat on the rail body, a spring seat installation cavity is arranged in the oil outlet connector, a spring seat is arranged in the spring seat installation cavity, an inner hole of the spring seat is communicated with an inner hole of the oil outlet pipe through an inner hole of the oil outlet connector, an upper concave conical surface is arranged at the lower end of the spring seat, a spring is arranged in the spring seat, a valve ball is arranged between the conical surface of the spring seat and the conical surface of the valve seat, the upper part of the valve ball is abutted against the spring, and the valve ball selectively seals the conical surface of the valve seat, so that an oil duct of the valve seat can only be transmitted unidirectionally.
Preferably, the spring seat is in interference fit with the oil outlet joint.
Preferably, the lower surface of the oil outlet joint is provided with a first sealing ring, and the first sealing ring is matched with the upper surface of the valve seat to form a plane sealing structure.
Preferably, a second sealing ring is arranged on the rail body below the valve seat, and the second sealing ring is matched with the lower surface of the valve seat to form a plane sealing structure.
The utility model reduces the pressure fluctuation in the oil storage cavity in the oil rail, and the one-way valve structure limits the one-way transmission of hydraulic oil.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of part B of fig. 1.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
The utility model provides an oil rail of area check valve structure, as shown in fig. 1, it includes rail body 1, is equipped with oil storage chamber 1.1 in rail body 1, installs end cap 4 on rail body 1 of the tip position of corresponding oil storage chamber 1.1, installs at least one oil feed joint Assembly 2 on rail body 1, and oil feed joint Assembly 2 keeps always leading to through the oil inlet on rail body 1 with oil storage chamber 1.1, installs at least one play oil check valve 3 on rail body 1, by oil storage chamber 1.1 to play oil check valve 3 one-way switch on.
As shown in fig. 2, the oil inlet joint assembly 2 comprises an oil inlet pipe 2.1, an oil inlet tightening nut 2.2 and an oil inlet joint 2.3; the oil inlet joint 2.3 is fixed on the rail body 1, the oil inlet pipe 2.1 is fixed on the oil inlet joint 2.3 through the oil inlet tightening nut 2.2, and the inner hole of the oil inlet pipe 2.1 is communicated with the oil inlet of the rail body 1 through the inner hole of the oil inlet joint 2.3.
As shown in fig. 3, the oil outlet one-way valve 3 comprises an oil outlet pipe 3.1, an oil outlet tightening nut 3.2, an oil outlet joint 3.3, a spring seat 3.4, a spring 3.5, a valve ball 3.6 and a valve seat 3.7; the oil outlet joint 3.3 is fixed on the rail body 1, the oil outlet pipe 3.1 is fixed on the oil outlet joint 3.3 through an oil outlet tightening nut 3.2, an inner hole of the oil outlet pipe 3.1 is communicated with an inner hole of the oil outlet joint 3.3, a valve seat 3.7 is arranged below the oil outlet joint 3.3, the valve seat 3.7 is tightly pressed on the rail body 1 by the oil outlet joint 3.3, and an oil outlet is arranged on the rail body 1 below the valve seat 3.7;
the valve seat 3.7 is provided with a valve seat oil outlet channel, the upper part of the valve seat oil outlet channel is a concave sealing conical surface 3.71, a spring seat installation cavity is arranged in the oil outlet joint 3.3, a spring seat 3.4 is arranged in the spring seat installation cavity, the spring seat 3.4 is provided with a transverse inner hole 3.41 and a longitudinal inner hole 3.42 which are intersected, a gap is reserved between the outer wall of the spring seat 3.4 below the corresponding transverse inner hole 3.41 and the inner wall of the oil outlet joint 3.3, the lower part of the longitudinal inner hole 3.42 is a concave limiting conical surface 3.43, the longitudinal inner hole 3.42 is communicated with the inner hole of the oil outlet joint 3.3, a spring 3.5 is arranged in the longitudinal inner hole 3.42, a valve ball 3.6 is arranged between the limiting conical surface 3.43 and the sealing conical surface 3.71, the upper part of the valve ball 3.6 is propped against the spring 3.5, and the valve ball 3.6 seals the sealing conical surface 3.71, so that the valve seat oil outlet channel can only be transmitted in one direction.
According to the utility model, the spring seat 3.4 is in interference fit with the spring seat mounting cavity of the oil outlet connector 3.3, so that the spring seat 3.4 can be prevented from falling off.
The top of the spring seat mounting cavity in the oil outlet joint 3.3 is provided with a conical surface structure which is used for limiting the spring seat 34.
The lower surface of the oil outlet joint 3.3 is provided with a first sealing ring 3.31, and the first sealing ring 3.31 is matched with the upper surface of the valve seat 3.7 to form a plane sealing structure.
The rail body 1 below the valve seat 3.7 is provided with a second sealing ring 1.2, and the second sealing ring 1.2 is matched with the lower surface of the valve seat 3.7 to form a plane sealing structure.
The oil outlet connector 3.3 and the spring seat 3.4 are bonded and limited through the inner conical surface and the outer conical surface and used for controlling the stroke of the valve ball 3.6.
The oil is supplied to the oil storage cavity 1.1 through the inner hole of the oil pipe 2.1, the inner hole of the oil inlet joint 2.3 and the oil inlet of the rail body 1, in the oil supply process, the inner and outer pressure difference of the oil storage cavity 1.1 in the rail body 1 overcomes the spring force of the spring 3.5, the steel valve ball 3.6 is pushed to be separated from the sealing conical surface 3.71 on the valve seat 3.7, the rail body 1 and the valve end oil duct are connected, and hydraulic oil is supplied to the valve end through the valve seat oil outlet channel of the valve seat 3.7, the gap between the outer wall of the valve seat 3.4 and the inner wall of the oil outlet joint 3.3, the transverse inner hole 3.41 and the longitudinal inner hole 3.42 in the valve seat 3.4, the inner hole of the oil outlet joint 3.3 and the inner hole of the oil outlet pipe 3.1. At the beginning of the oil stopping process, at the moment, the internal and external pressure difference of the oil storage cavity 1.1 in the rail body 1 is zero, the valve ball 3.6 is reset under the action of the spring force of the spring 3.5, the valve ball 3.6 is contacted with the sealing conical surface 3.71 on the valve seat 37 to seal hydraulic oil, the hydraulic oil is limited to be only transmitted unidirectionally, and the pressure fluctuation at the valve end is prevented from being transmitted to the oil storage cavity 1.1 of the rail body 1.
Claims (6)
1. The utility model provides a take oil rail of check valve structure, it includes rail body (1), is equipped with oil storage chamber (1.1) in rail body (1), installs end cap (4) on rail body (1) of the tip position of corresponding oil storage chamber (1.1), installs at least one oil feed joint Assembly (2) on rail body (1), and oil feed joint Assembly (2) keep always leading to with oil storage chamber (1.1) through the oil inlet on rail body (1), characterized by: at least one oil outlet one-way valve (3) is arranged on the rail body (1), and the oil storage cavity (1.1) is in one-way conduction with the oil outlet one-way valve (3).
2. The oil rail with one-way valve structure of claim 1, wherein: the oil inlet joint assembly (2) comprises an oil inlet pipe (2.1), an oil inlet tightening nut (2.2) and an oil inlet joint (2.3); the oil inlet joint (2.3) is fixed on the rail body (1), the oil inlet pipe (2.1) is fixed on the oil inlet joint (2.3) through an oil inlet tightening nut (2.2), and an inner hole of the oil inlet pipe (2.1) is communicated with an oil inlet of the rail body (1) through an inner hole of the oil inlet joint (2.3).
3. The oil rail with one-way valve structure of claim 1, wherein: the oil outlet one-way valve (3) comprises an oil outlet pipe (3.1), an oil outlet tightening nut (3.2), an oil outlet joint (3.3), a spring seat (3.4), a spring (3.5), a valve ball (3.6) and a valve seat (3.7); the oil outlet connector (3.3) is fixed on the rail body (1), the oil outlet pipe (3.1) is fixed on the oil outlet connector (3.3) through an oil outlet tightening nut (3.2), an inner hole of the oil outlet pipe (3.1) is communicated with an inner hole of the oil outlet connector (3.3), a valve seat (3.7) is arranged below the oil outlet connector (3.3), the valve seat (3.7) is tightly pressed on the rail body (1) by the oil outlet connector (3.3), and an oil outlet is arranged on the rail body (1) below the valve seat (3.7);
the valve seat (3.7) is provided with a valve seat oil outlet channel, the upper part of the valve seat oil outlet channel is a concave sealing conical surface (3.71), a spring seat installation cavity is arranged in the oil outlet joint (3.3), a spring seat (3.4) is arranged in the spring seat installation cavity, the spring seat (3.4) is provided with a transverse inner hole (3.41) and a longitudinal inner hole (3.42) which are intersected, a gap is reserved between the outer wall of the spring seat (3.4) below the corresponding transverse inner hole (3.41) and the inner wall of the oil outlet joint (3.3), the lower part of the longitudinal inner hole (3.42) is a concave limiting conical surface (3.43), the longitudinal inner hole (3.42) is communicated with the inner hole of the oil outlet joint (3.3), a spring (3.5) is arranged in the longitudinal inner hole (3.42), a valve ball (3.6) is arranged between the limiting conical surface (3.43) and the sealing conical surface (3.71), the upper part of the valve ball (3.6) is abutted against the spring (3.5), and the valve seat (3.71) can only be plugged by the sealing conical surface, so that the valve seat can be plugged by the oil outlet channel.
4. A fuel rail with a one-way valve structure as claimed in claim 3, wherein: the spring seat (3.4) is in interference fit with the oil outlet joint (3.3).
5. A fuel rail with a one-way valve structure as claimed in claim 3, wherein: the lower surface of the oil outlet joint (3.3) is provided with a first sealing ring (3.31), and the first sealing ring (3.31) is matched with the upper surface of the valve seat (3.7) to form a plane sealing structure.
6. A fuel rail with a one-way valve structure as claimed in claim 3, wherein: the rail body (1) below the valve seat (3.7) is provided with a second sealing ring (1.2), and the second sealing ring (1.2) is matched with the lower surface of the valve seat (3.7) to form a plane sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321627518.9U CN220134935U (en) | 2023-06-26 | 2023-06-26 | Oil rail with one-way valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321627518.9U CN220134935U (en) | 2023-06-26 | 2023-06-26 | Oil rail with one-way valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134935U true CN220134935U (en) | 2023-12-05 |
Family
ID=88964436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321627518.9U Active CN220134935U (en) | 2023-06-26 | 2023-06-26 | Oil rail with one-way valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134935U (en) |
-
2023
- 2023-06-26 CN CN202321627518.9U patent/CN220134935U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |