CN209523934U - A kind of reverse pressure reducing valve of inserting open in usual - Google Patents
A kind of reverse pressure reducing valve of inserting open in usual Download PDFInfo
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- CN209523934U CN209523934U CN201822165731.8U CN201822165731U CN209523934U CN 209523934 U CN209523934 U CN 209523934U CN 201822165731 U CN201822165731 U CN 201822165731U CN 209523934 U CN209523934 U CN 209523934U
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- reduction outlet
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Abstract
The utility model belongs to technical field of aerospace, is related to a kind of reverse pressure reducing valve of inserting open in usual.The pressure reducing valve include: shell, the side that the shell is set import and pressure-reduction outlet, the import and the pressure-reduction outlet between there are first passages, the reducing valve of the reverse type in the first passage is set；The reducing valve is in normally open；The aperture of the reducing valve is adjusted by the pressure of import；Wherein, when the import is pressurizeed, the reducing valve adjusts the reducing valve according to the pressure of pressurization and adjusts aperture accordingly, and depressurizes to the pressure, in the pressure of pressure-reduction outlet output decompression.The utility model provides a kind of new plug-in decompression safeguard construction form, and solution traditional relief valve volume is big, and flow is small, does not have the problem of pressure relief value overvoltage/overload defencive function.
Description
Technical field
The utility model belongs to technical field of aerospace, is related to a kind of reverse pressure reducing valve of inserting open in usual.
Background technique
Pressure reducing valve is a kind of pressure control that the pressure of hydraulic system is down to pressure needed for pipeline as a kind of restricting element
Valve processed is attachment indispensable in hydraulic system.Conventional press valve uses plug-in, but this pressure reducing valve volume is big, and flow is small.
Utility model content
The purpose of this utility model is: providing a kind of new plug-in decompression safeguard construction form, solves traditional relief valve
Volume is big, and flow is small, does not have the problem of pressure relief value overvoltage/overload defencive function.
In order to solve the above technical problems, the technical solution of the utility model is:
The utility model provides a kind of reverse pressure reducing valve of inserting open in usual, comprising: shell, the side that the shell is arranged in
Import and pressure-reduction outlet, the import and the pressure-reduction outlet between there are first passages, be arranged in inverse in the first passage
To the reducing valve of formula；The reducing valve is in normally open；The aperture of the reducing valve is adjusted by the pressure of import；
Wherein, when the import is pressurizeed, the reducing valve is corresponding according to the pressure of the pressurization adjustment reducing valve
Aperture is adjusted, and the pressure is depressurized, in the pressure of pressure-reduction outlet output decompression.
Further, the reverse pressure reducing valve of inserting open in usual further include: the oil return opening of the side of the shell is set,
There are second channels between the oil return opening and the pressure-reduction outlet；Safety valve in the second channel is set；
When the pressure of the pressure-reduction outlet is less than pre- rated pressure, the safety valve cuts off the second channel；Work as institute
When stating the pressure of pressure-reduction outlet and being greater than the default rated pressure, the safety valve is according to the opened by pressure and tune of the pressure-reduction outlet
Itself whole aperture, so that the pressure-reduction outlet is connected to the oil return opening, the partial pressure of the pressure-reduction outlet is by the oil return opening
Release, so that the pressure of the pressure-reduction outlet is maintained at the default rated pressure.
Further, the reducing valve include: the reset spring for being fixed on the shell side, the first valve assembly,
First valve base, mandril and relief spring；
Wherein, the import setting is on the housing around the position of first valve assembly, first valve
Component is contacted with the reset spring, the mandril is interlocked with first valve assembly, one end of the relief spring is fixed
In the bottom of the mandril, the other end of the relief spring is fixed on the opposite side of the shell side, and the pressure-reduction outlet is set
Set the corresponding position in middle part of the mandril on the housing.
Further, the mandril include the body of rod and be fixed on the body of rod one end it is top, it is described it is top with it is described
The contact of first valve assembly, the other end of the body of rod are fixed on one end of the relief spring；The top maximum is transversal
Face is less than the cross-sectional area of the body of rod.
Further, the safety valve includes: the second valve assembly, spring；
Wherein, one end of the spring is fixed on the housing, the other end of the spring and the second valve group
Part connection, second valve assembly are contacted with the bottom of the mandril.
Further, the reverse pressure reducing valve of inserting open in usual includes: the groove for being fixed on the bottom of the mandril, described
Groove is provided with the safety valve in the groove；
Wherein, the safety valve include: with the second valve assembly of the slot bottom face contact of the groove, be fixed on it is described
The plug screw of the notch of groove, one end are fixed on the spring on the plug screw, and it is living that the other end of the spring is fixed on described second
In door component.
Further, first valve assembly and the second valve assembly are the different steel balls of radius.
Further, the reducing valve and the safety valve are all made of steel-ball type reducing valve structure type.
Further, the sealing of steel ball sharp edge is all made of on the reducing valve and the safety valve.
The technical effect of the utility model is:
1. the reverse type reducing valve structure used controls the displacement of mandril, indirect liquid by the pressure change of relief chamber
The aperture of dynamic control reducing valve, realizes decompression；
2. decompressed pressure to be directed to the groove under mandril, in one-way safety valve is arranged in groove, realize that pressure relief value is super
Overload protection is pressed, while realizing that decompression and security function are integrated.
Detailed description of the invention
Fig. 1 is the principle schematic diagram of the utility model.Specifically include that 1 nut, 2 shells, 3 screw rods, 4 gaskets, 5 back
Cap, 6 plug screws, 7 relief springs, 8 safety springs, 9 pads, 10 first steel balls (i.e. the first valve assembly), 11 mandrils, 12 sealings
Pad, 13 valve bases, 14 second steel balls (i.e. the second valve assembly), 15 steel ball seats, 16 reset springs, 17 blanking covers, 18 sealing rings, 19
Guard circle, 20 sealing rings, 21 sealing rings, 22 sealing rings, 23 sealing rings.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples:
The working principle of the utility model are as follows:
Under off working state, the first valve assembly is not sealed with valve base, and reducing valve is in normally open, the bottom of mandril
Portion by the pressure of relief spring force mandril head squeeze the first valve assembly, the first valve assembly pressed home spring,
So that reset spring is in compressive state, safety valve is closed, the first pathway patency of pressure-reduction outlet and import, oil return opening and decompression
Alternate path between mouthful is cut off.
When pressurizeing to import, as the pressure of import is gradually increased, the pressure of pressure-reduction outlet is gradually increasing, and mandril, which overcomes, to be subtracted
Pressing spring elastic force, towards close to the movement of the direction of relief spring；The pressure for the mandril that reset spring is subject to reduces, and reset spring pushes away
Dynamic first valve assembly is moved to mandril, to change the aperture of reducing valve, until the pressure of import is stablized, in reducing valve
Reach a balance, the pressure of pressure-reduction outlet also keeps stable, and at the same time, safety valve is still closed, and alternate path is still cut off；
When the pressure of import is greater than default rated value, the first valve assembly continues to press on mandril and continues to move to, while the bottom of mandril
One thrust of the second valve assembly for giving safety valve, when the thrust is greater than the elastic force of spring, the second valve assembly is to bullet
Spring is mobile, and safety valve is opened, the pathway patency of oil return opening and pressure-reduction outlet.
As shown in Figure 1, the utility model relates to a kind of reverse pressure reducing valves of inserting open in usual, it is characterised in that: by adjusting 7
Number part relief spring controls the aperture of the reducing valve of No. 14 second steel balls, while passing through the pressure change in relief chamber, control
The displacement of No. 11 mandrils is made, realizes that decompression depressurized the safety valve connection in relief chamber and No. 11 mandrils to realize
Carry protection；It is provided with No. 16 reset springs at reducing valve, guarantees the seal pressure of reducing valve.
The utility model structure is simple, using hard sealing means, is adapted to high pressure relief system, high reliablity.
Claims (9)
1. a kind of reverse pressure reducing valve of inserting open in usual characterized by comprising shell, be arranged in the shell side into
There are first passages between mouth and pressure-reduction outlet, the import and the pressure-reduction outlet, and the reverse type in the first passage is arranged in
Reducing valve；The reducing valve is in normally open；The aperture of the reducing valve is adjusted by the pressure of import；
Wherein, when the import is pressurizeed, the reducing valve adjusts the reducing valve according to the pressure of pressurization and adjusts accordingly
Aperture, and the pressure is depressurized, in the pressure of pressure-reduction outlet output decompression.
2. the reverse pressure reducing valve of inserting open in usual according to claim 1, which is characterized in that the inserting open in usual inversely subtracts
Pressure valve further include: the oil return opening of the side of the shell is set, it is logical there are second between the oil return opening and the pressure-reduction outlet
Road；Safety valve in the second channel is set；
When the pressure of the pressure-reduction outlet is less than pre- rated pressure, the safety valve cuts off the second channel；Subtract when described
When the pressure of mouth being pressed to be greater than default rated pressure, the safety valve is according to the opened by pressure of the pressure-reduction outlet and adjusts itself
Aperture, so that the pressure-reduction outlet is connected to the oil return opening, the partial pressure of the pressure-reduction outlet is discharged by the oil return opening, so that
The pressure of the pressure-reduction outlet is maintained at the default rated pressure.
3. the reverse pressure reducing valve of inserting open in usual according to claim 2, which is characterized in that the reducing valve includes: solid
It is scheduled on reset spring, the first valve assembly, the first valve base, mandril and the relief spring of the shell side；
Wherein, the import setting is on the housing around the position of first valve assembly, first valve assembly
It is contacted with the reset spring, the mandril is interlocked with first valve assembly, one end of the relief spring is fixed on institute
The bottom of mandril is stated, the other end of the relief spring is fixed on the opposite side of the shell side, and the pressure-reduction outlet setting exists
The corresponding position in the middle part of the mandril on the shell.
4. the reverse pressure reducing valve of inserting open in usual according to claim 3, which is characterized in that the mandril includes the body of rod and consolidates
Be scheduled on the top of one end of the body of rod, it is described it is top contacted with first valve assembly, the other end of the body of rod is fixed
In one end of the relief spring；The top maximum cross section is less than the cross-sectional area of the body of rod.
5. the reverse pressure reducing valve of inserting open in usual according to claim 3 or 4, which is characterized in that the safety valve includes:
Second valve assembly, spring；
Wherein, one end of the spring is fixed on the housing, and the other end of the spring and second valve assembly connect
It connects, second valve assembly is contacted with the bottom of the mandril.
6. the reverse pressure reducing valve of inserting open in usual according to claim 5, which is characterized in that the inserting open in usual inversely subtracts
Pressure valve includes: the groove for being fixed on the bottom of the mandril, the groove, is provided with the safety valve in the groove；
Wherein, the safety valve include: with the second valve assembly of the slot bottom face contact of the groove, be fixed on the groove
Notch plug screw, one end is fixed on the spring on the plug screw, and the other end of the spring is fixed on the second valve group
On part.
7. the reverse pressure reducing valve of inserting open in usual according to claim 3, which is characterized in that first valve assembly and the
Two valve assemblies are the different steel balls of radius.
8. the reverse pressure reducing valve of inserting open in usual according to claim 2, which is characterized in that the reducing valve and the peace
Full valve is all made of steel-ball type reducing valve structure type.
9. the reverse pressure reducing valve of inserting open in usual according to claim 2, which is characterized in that the reducing valve and the peace
The sealing of steel ball sharp edge is all made of on full valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165731.8U CN209523934U (en) | 2018-12-21 | 2018-12-21 | A kind of reverse pressure reducing valve of inserting open in usual |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165731.8U CN209523934U (en) | 2018-12-21 | 2018-12-21 | A kind of reverse pressure reducing valve of inserting open in usual |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209523934U true CN209523934U (en) | 2019-10-22 |
Family
ID=68227289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822165731.8U Active CN209523934U (en) | 2018-12-21 | 2018-12-21 | A kind of reverse pressure reducing valve of inserting open in usual |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209523934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI714333B (en) * | 2019-11-04 | 2020-12-21 | 信孚產業股份有限公司 | Oil return valve group with multi-stage throttling control |
-
2018
- 2018-12-21 CN CN201822165731.8U patent/CN209523934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI714333B (en) * | 2019-11-04 | 2020-12-21 | 信孚產業股份有限公司 | Oil return valve group with multi-stage throttling control |
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