CN207454845U - A kind of plug-in overflow valve - Google Patents
A kind of plug-in overflow valve Download PDFInfo
- Publication number
- CN207454845U CN207454845U CN201721329263.2U CN201721329263U CN207454845U CN 207454845 U CN207454845 U CN 207454845U CN 201721329263 U CN201721329263 U CN 201721329263U CN 207454845 U CN207454845 U CN 207454845U
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- China
- Prior art keywords
- valve
- valve core
- outer housing
- hydraulic fluid
- spool
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Abstract
The utility model discloses a kind of plug-in overflow valves, the valve pocket of valve chamber is formed including being set in together, outer housing and outer housing lid, the valve core being slidably matched with valve pocket is equipped in valve chamber, the right part of valve pocket is equipped with the first hydraulic fluid port, the circumferential direction of valve pocket is equipped with multiple second hydraulic fluid ports, the first cavity volume is formed on the left of valve core, pressure spring is equipped in first cavity volume, valve core is equipped with intercommunicating pore and connects the first hydraulic fluid port and the first cavity volume, and in fluid from the first hydraulic fluid port into fashionable, using differential principle at the first hydraulic fluid port and the first cavity volume valve core movement is controlled to realize the opening and closing of valve port, it is simple in structure, size is compact, circulating pressure loss is smaller in valve, and due to being equipped with multiple second hydraulic fluid ports in valve pocket, it disclosure satisfy that the use demand of overflow valve high-pressure high-flow.
Description
Technical field
The utility model is related to hydraulic valve technical field, more particularly to a kind of plug-in overflow valve.
Background technology
Overflow valve is a kind of hydraulic pressure control valve, mainly risen in hydraulic test level pressure overflow, voltage stabilizing, system unloaded and
Safeguard protection acts on.
When the pressure of hydraulic system reaches 40MPa, then it is more than 500L/min to require valve flow control amount, is that meet demand would generally
Plug-in overflow valve is selected, current inserting overflow valve body is heavy, and size is larger, and fit clearance is larger, causes circulation in valve
The pressure loss is larger；And function is single, can not realize the control of system fluid direction, pressure and flow.Therefore, people are directed to
Seek a kind of hydraulic control valve of new construction, high pressure, the engineering demand of high-volume hydraulic control system can be better adapted to.
Therefore provide it is a kind of it is simple in structure, size is compact and disclosure satisfy that the inserting overflow of high-pressure high-flow use demand
Valve is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of plug-in overflow valve, and simple in structure, size is compact, disclosure satisfy that height
Press the use demand of big flow.
In order to solve the above technical problems, the utility model provides a kind of plug-in overflow valve, including valve pocket, be sleeved on it is described
Outer housing on valve pocket and the outer housing lid being sleeved on the one end of the outer housing away from the valve pocket, it is the valve pocket, described
Outer housing and the outer housing lid form valve chamber, and valve core is equipped in the valve chamber, and the valve core is matched somebody with somebody with valve pocket slip
It closes, the inner wall of the valve pocket outer end is equipped with for the valve core to be limited in the boss in the valve pocket, the valve core
The first cavity volume is formed between the outer housing and the outer housing lid, pressure spring is equipped in first cavity volume, it is described
Pressure spring one end is connected with the outer housing lid, and the other end is connected with the valve core, and the right part of the valve pocket is equipped with the
One hydraulic fluid port, the circumferential direction of the valve pocket are equipped with multiple second hydraulic fluid ports, the valve core be equipped with axially penetrate through the valve core and
The intercommunicating pore of first hydraulic fluid port and first cavity volume is connected, the first oil port liquid effects are in the valve core right end
Axial action forced area on face is more than liquid effects in first cavity volume and makees in the axial direction on the valve core left side
Use forced area.
Preferably, the valve core is included in upper valve core print seat, the valve set gradually in the valve chamber from the first hydraulic fluid port direction
Core and lower valve core print seat, the right part of the spool and the left part cone match of the upper valve core print seat, the left part of the spool
Coordinate with the right part circular arc of the lower valve core print seat, the intercommunicating pore sequentially passes through the upper valve core print seat, the spool and described
Lower valve core print seat.
Preferably, the outer wall of the spool right part is equipped with groove, and the groove and the outer housing are equipped with described the
The position of two hydraulic fluid ports forms the second cavity volume, and liquid effects are in the axial action on the right side of the spool in second cavity volume
Forced area is more than it and acts on the spool and the axial action forced area on the contact surface of the upper valve core print seat.
Preferably, including two rows second hydraulic fluid port axially set along valve pocket, often arrange each in second hydraulic fluid port
Second hydraulic fluid port is uniformly arranged in the circumferential direction of the valve pocket centered on its axle center.
Preferably, sleeve is installed for installing the position of spool in the valve pocket, the spool is slided with the sleeve
Connection and clearance fit are equipped with the first sealing ring between the spool and the sleeve.
Preferably, the valve pocket is connected with the outer housing thread fitting, and passes through the sealing of the second sealing ring, the shell
Body is connected with the outer housing lid thread fitting.
Preferably, the right side of the upper valve core print seat and the medial surface cone match of the boss.
Preferably, further include to adjust the adjusting screw rod that the pressure spring pre-tightens elastic force, the head of the adjusting screw rod
Portion is located in first cavity volume, and is slidably matched with the outer housing, and the bar portion of the adjusting screw rod passes through the outer housing
It covers and is threadedly coupled with the outer housing lid, and pass through pre-load nut and fix, the pressure spring is used for and the outer housing lid
One end of connection is connected with the end of the adjusting screw rod.
Preferably, the part that is slidably matched between the head of the adjusting screw rod and the outer housing is equipped with the 3rd sealing
Circle.
Preferably, the head of the adjusting screw rod is equipped with the first protrusion, and the left part of the lower valve core print seat is equipped with second
Protrusion, the both ends of the pressure spring are respectively fitted in first protrusion and second protrusion.
Plug-in overflow valve provided by the utility model, including valve pocket, the outer housing being sleeved on valve pocket and set outside
Outer housing lid on the one end of housing away from valve pocket, valve pocket, outer housing and outer housing lid form valve chamber, spool are equipped in valve chamber
Body, valve core are slidably matched with valve pocket, and the inner wall of valve pocket outer end is equipped with for valve core to be limited in the boss in valve pocket, valve
The first cavity volume is formed between core and outer housing and outer housing lid, pressure spring, pressure spring one end are equipped in the first cavity volume
It is connected with outer housing lid, the other end is connected with valve core, and the right part of valve pocket is equipped with the first hydraulic fluid port, and the circumferential direction of valve pocket is equipped with more
A second hydraulic fluid port, valve core are equipped with the intercommunicating pore for axially penetrating through valve core and connecting the first hydraulic fluid port and the first cavity volume, the first oil
Mouthful place's liquid effects are in the axial action forced area on valve core right side more than liquid effects in the first cavity volume in valve core
Axial action forced area on left side.
In use, when fluid is from the first hydraulic fluid port into fashionable, by the intercommunicating pore among valve core full of including the first cavity volume
Entire overflow valve chamber, and be respectively acting on two end faces of valve core, since the first oil port liquid effects are in valve core
Axial action forced area on right side be more than in the first cavity volume liquid effects in the axial action on valve core left side by
Power area, therefore the oil liquid pressure for acting on valve core both sides is unequal, can generate a pressure drop, when pressure drop is less than pressure regulation
During the setting pressure of spring, valve core is closed under the action of pressure spring in right end position, valve port, when pressure drop is higher than tune
During the setting pressure of pressing spring, valve core moves to left under the action of hydraulic coupling, and the first hydraulic fluid port is communicated with the second hydraulic fluid port, and valve port is opened
It opens, overflow valve overflow, the elastic force of pressure spring increases with the increase of valve port open amount, until equal with hydraulic action
Weighing apparatus；In conclusion plug-in overflow valve provided by the utility model, simple in structure, size is compact, in valve circulating pressure loss compared with
It is small, and due to being equipped with multiple second hydraulic fluid ports in valve pocket, disclosure satisfy that the use demand of overflow valve high-pressure high-flow.
Description of the drawings
Fig. 1 is a kind of structure diagram of specific embodiment of plug-in overflow valve provided by the utility model.
Specific embodiment
The core of the utility model is to provide a kind of plug-in overflow valve, and simple in structure, size is compact, disclosure satisfy that height
Press the use demand of big flow.
In order to which those skilled in the art is made to more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It please refers to Fig.1, Fig. 1 is a kind of structure of specific embodiment of plug-in overflow valve provided by the utility model
Schematic diagram.
The plug-in overflow valve that specific embodiment of the present invention provides, including valve pocket 6, be sleeved on it is outer on valve pocket 6
Housing 4 and the outer housing lid 3 being sleeved on the one end of outer housing 4 away from valve pocket 6,3 structure of valve pocket 6, outer housing 4 and outer housing lid
Into valve chamber, valve core is equipped in valve chamber, valve core is slidably matched with valve pocket 6, and the inner wall of 6 outer end of valve pocket is equipped with for by spool
Body is limited in the boss in valve pocket 6, and the first cavity volume is formed between valve core and outer housing 4 and outer housing lid 3, in the first cavity volume
Equipped with pressure spring 5,5 one end of pressure spring is connected with outer housing lid 3, and the other end is connected with valve core, and the right part of valve pocket 6 is set
There is the first hydraulic fluid port 7, the circumferential direction of valve pocket 6 is equipped with multiple second hydraulic fluid ports 8, and valve core is equipped with the intercommunicating pore for axially penetrating through valve core
16, intercommunicating pore 16 connects the first hydraulic fluid port 7 and the first cavity volume, and at the first hydraulic fluid port 7 liquid effects in the axis on valve core right side
To effect forced area more than liquid effects in the first cavity volume in the axial action forced area on valve core left side.
In use, when fluid is from the first hydraulic fluid port 7 into fashionable, holds by the intercommunicating pore 16 among valve core full of including first
The entire overflow valve chamber of chamber, and being respectively acting on two end faces of valve core, due at the first hydraulic fluid port 7 liquid effects in spool
Axial action forced area on body right side is more than liquid effects in the first cavity volume in the axial action on valve core left side
Forced area, therefore the oil liquid pressure for acting on valve core both sides is unequal, can generate a pressure drop, when pressure drop is less than tune
During the setting pressure of pressing spring 5, valve core is in right end position under the action of pressure spring 5, and valve port is closed, when pressure drop height
When the setting pressure of pressure spring 5, valve core moves to left under the action of hydraulic coupling, and the first hydraulic fluid port 7 is communicated with the second hydraulic fluid port 8,
Valve port is opened, and overflow valve overflow, the elastic force of pressure spring 5 increases with the increase of valve port open amount, until and hydraulic action
Power balances each other；In conclusion plug-in overflow valve provided by the utility model, simple in structure, size is compact, circulating pressure in valve
Loss is smaller, and due to being equipped with multiple second hydraulic fluid ports 8 in valve pocket 6, disclosure satisfy that the use demand of overflow valve high-pressure high-flow.
The plug-in overflow valve that specific embodiment of the present invention provides, specifically, valve core can be included in valve chamber
The interior upper valve core print seat 11 set gradually from 7 direction of the first hydraulic fluid port, spool 10 and lower valve core print seat 9, intercommunicating pore 16 sequentially pass through upper valve
Core print seat 11, spool 10 and lower valve core print seat 9, pressure spring 5 are located between outer housing lid 3 and lower valve core print seat 9, in 5 bullet of pressure spring
Under power effect, upper valve core print seat 11, spool 10 and lower valve core print seat 9 are pressed together to form 10 body of spool；Spool 10 and upper valve core print seat
Cone structure may be employed in the right part of 11 contacts, and arc structure may be employed in the left part contacted with lower valve core print seat 9, and makes valve
The right part of core 10 and the left part cone match of upper valve core print seat 11, the left part of spool 10 are justified with the right part of lower valve core print seat 9
Arc coordinates, and can so play the role of automatic centering, improve the stability in use of overflow valve.
In addition, the right side of upper valve core print seat 11 and the medial surface of boss can also use cone match, so both convenient pair
In, and the difficulty of processing of upper valve core print seat 11 can be reduced.
Further, the plug-in overflow valve that specific embodiment of the present invention provides, in the outer of 10 right part of spool
Groove can be equipped on wall, the position which is equipped with the second hydraulic fluid port 8 with outer housing 4 can form the second cavity volume, and second
Liquid effects act on spool 10 and upper valve core print seat in the axial action forced area on 10 right side of spool more than it in cavity volume
Axial action forced area on 11 contact surface, such second hydraulic fluid port 8 can also be used as oil inlet use, and fluid is from first
Hydraulic fluid port 7 is discharged, and realizes the adjustment of system oil liquid flow direction；When fluid is from the second hydraulic fluid port 8 into the second cavity volume, the pressure of fluid
Power can be respectively acting on the right side of spool 10 and the contact surface of spool 10 and upper valve core print seat 11, due to 10 right side of spool
Axial action forced area is more than the axial action forced area of spool 10 and 11 contact surface of upper valve core print seat, therefore can generate one
Pressure drop, when pressure drop is less than the setting pressure of pressure spring 5, spool 10 is in right end position under the action of pressure spring 5
It puts, the first hydraulic fluid port 7 and the second hydraulic fluid port 8 are obstructed, and when pressure drop is higher than the setting pressure of pressure spring 5, spool 10 is in hydraulic coupling
Under the action of move to left, the first hydraulic fluid port 7 is communicated with the second hydraulic fluid port 8, and valve port is opened, and fluid discharges from the first hydraulic fluid port 7.
On the basis of above-mentioned each specific embodiment, the plug type overflow of specific embodiment of the present invention offer
Valve, can be equipped on valve pocket 6 axially set along it two ranked second hydraulic fluid port 8, often row includes multiple second hydraulic fluid ports 8, and each the
Two hydraulic fluid ports 8 are uniformly arranged preferably in the circumferential direction of valve pocket 6 centered on 6 axle center of valve pocket, the diameter of the second hydraulic fluid port 8 and often ranked second
The quantity of hydraulic fluid port 8 can need to set according to using, and the application is not specifically limited this；By testing surface, on valve pocket 6
Two are set to ranked second hydraulic fluid port 8, often arranging includes 6 the second hydraulic fluid ports 8, in the case of a diameter of 2mm of the second hydraulic fluid port 8, the plug-in
The Opening pressure of overflow valve can reach 600~1000L/min up to 50MPa, flow, disclosure satisfy that the use of high-pressure high-flow and needs
It asks.
Further, the plug-in overflow valve that specific embodiment of the present invention provides is used to install valve in valve pocket 6
The position of core 10 can be equipped with sleeve 12, and spool 10 and sleeve 12 be made to be slidably connected and clearance fit, sleeve 12 can be right
The movement of spool 10 play the guiding role, in order to prevent oil liquid leakage, and the first sealing can be equipped between spool 10 and sleeve 12
13。
Further, the plug-in overflow valve that specific embodiment of the present invention provides, valve pocket 6 are specific with outer housing 4
Thread fitting connection may be employed, and the mating part between valve pocket 6 and outer housing 4 is equipped with the second sealing ring 14 for close
Envelope, outer housing 4 can also be connected with outer housing lid 3 using thread fitting, and threaded connection is reliable and stable and easy for assemble or unload,
Facilitate the assembling of overflow valve and the replacement of parts.
On the basis of above-mentioned each specific embodiment, the plug type overflow of specific embodiment of the present invention offer
Valve further includes to adjust the adjusting screw rod 1 that pressure spring 5 pre-tightens elastic force, and the head of adjusting screw rod 1 is located in the first cavity volume,
And be slidably matched with outer housing 4, the bar portion of adjusting screw rod 1 is threadedly coupled through outer housing lid 3 and with outer housing lid 3, and is passed through
Pre-load nut 2 is fixed, and pressure spring 5 is used to be connected with one end that outer housing lid 3 is connected with the end of adjusting screw rod 1；In use,
Adjusting screw rod 1 can be screwed as needed, adjusts the distance between 1 head of adjusting screw rod and lower valve core print seat 9, change pressure spring
5 initial pressure, so as to fulfill the control to system oil liquid pressure.
Oil liquid leakage when further, to prevent work, the slip between the head of adjusting screw rod 1 and outer housing 4 are matched somebody with somebody
It closes part and is preferably provided with the 3rd sealing ring 15.
Further, the plug-in overflow valve that specific embodiment of the present invention provides, on the head of adjusting screw rod 1
The first protrusion can be equipped with, the second protrusion can be equipped in the left part of lower valve core print seat 9, and the both ends of pressure spring 5 can be divided
It is not sleeved in the first protrusion and the second protrusion, that is, facilitates the connection of pressure spring 5 and 1 head of adjusting screw rod and lower valve core print seat 9, again
Guiding role can be played for the flexible of pressure spring 5, it is of course also possible to the first protrusion and the second protrusion are not provided with, also in this reality
Within new protection domain.
In the description of present utility model application file, it is to be understood that the orientation of the instructions such as term "left", "right" or
Relation is based on orientation shown in the drawings or position relationship, is for only for ease of description and simplifies description rather than instruction or dark
Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, term " first ", " second "
Etc. being used merely to distinguish an entity with other several entities, deposited without necessarily requiring or implying between these entities
In any this actual relation or order, therefore it is not intended that limitation to the utility model
Plug-in overflow valve provided by the utility model is described in detail above.It is used herein specifically a
Example is set forth the principle and embodiment of the utility model, and the explanation of above example is only intended to help to understand this reality
With new method and its core concept.It should be pointed out that for those skilled in the art, this is not being departed from
On the premise of utility model principle, can also to the utility model, some improvement and modification can also be carried out, these improvement and modification also fall
Enter in the protection domain of the utility model claims.
Claims (10)
1. a kind of plug-in overflow valve, which is characterized in that including valve pocket, the outer housing being sleeved on the valve pocket and be sleeved on
Outer housing lid on the one end of the outer housing away from the valve pocket, the valve pocket, the outer housing and the outer housing lid structure
Into valve chamber, valve core is equipped in the valve chamber, the valve core is slidably matched with the valve pocket, on the inner wall of the valve pocket outer end
Equipped with for the valve core to be limited in the boss in the valve pocket, the valve core and the outer housing and the outer housing
The first cavity volume is formed between lid, pressure spring, described pressure spring one end and the outer housing are equipped in first cavity volume
Lid connection, the other end are connected with the valve core, and the right part of the valve pocket is equipped with the first hydraulic fluid port, is set in the circumferential direction of the valve pocket
There are multiple second hydraulic fluid ports, the valve core, which is equipped with, axially penetrates through the valve core and connection first hydraulic fluid port and described first
The intercommunicating pore of cavity volume, the first oil port liquid effects are more than in the axial action forced area on the valve core right side
Liquid effects are in the axial action forced area on the valve core left side in first cavity volume.
2. plug-in overflow valve according to claim 1, which is characterized in that the valve core is included in the valve chamber certainly
Upper valve core print seat, spool and the lower valve core print seat that first hydraulic fluid port direction is set gradually, the right part of the spool and the upper valve core print seat
Left part cone match, the right part circular arc of the left part of the spool and the lower valve core print seat coordinates, the intercommunicating pore according to
It is secondary to run through the upper valve core print seat, the spool and the lower valve core print seat.
3. plug-in overflow valve according to claim 2, which is characterized in that the outer wall of the spool right part is equipped with recessed
Slot, the position that the groove is equipped with second hydraulic fluid port with the outer housing form the second cavity volume, and described second holds intracavity liquid
The axial action forced area acted on the right side of the spool acts on the spool and the upper valve core print seat more than it
Contact surface on axial action forced area.
4. plug-in overflow valve according to claim 3, which is characterized in that including the two rows of institutes axially set along valve pocket
The second hydraulic fluid port is stated, often arranges each second hydraulic fluid port in second hydraulic fluid port in the circumferential direction of the valve pocket centered on its axle center
It is uniformly arranged.
5. plug-in overflow valve according to claim 4, which is characterized in that be used to install the position of spool in the valve pocket
Sleeve is installed, the spool is slidably connected with the sleeve and clearance fit, and the is equipped between the spool and the sleeve
One sealing ring.
6. plug-in overflow valve according to claim 5, which is characterized in that the valve pocket and the outer housing thread fitting
Connection, and pass through the sealing of the second sealing ring, the outer housing is connected with the outer housing lid thread fitting.
7. plug-in overflow valve according to claim 2, which is characterized in that the right side of the upper valve core print seat with it is described convex
The medial surface cone match of platform.
8. according to the plug-in overflow valve described in claim 2 to 7 any one, which is characterized in that further include for adjusting
State the adjusting screw rod that pressure spring pre-tightens elastic force, the head of the adjusting screw rod is located in first cavity volume, and with it is described outer
Housing is slidably matched, and the bar portion of the adjusting screw rod is threadedly coupled through the outer housing lid and with the outer housing lid, and is led to
It crosses pre-load nut to fix, the end that the pressure spring is used for one end and adjusting screw rod being connected with the outer housing lid connects
It connects.
9. plug-in overflow valve according to claim 8, which is characterized in that the head of the adjusting screw rod and the shell
The part that is slidably matched between body is equipped with the 3rd sealing ring.
10. plug-in overflow valve according to claim 9, which is characterized in that the head of the adjusting screw rod is equipped with the
One protrusion, the left part of the lower valve core print seat are equipped with the second protrusion, and it is convex that the both ends of the pressure spring are respectively fitted over described first
Rise and second protrusion on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721329263.2U CN207454845U (en) | 2017-10-16 | 2017-10-16 | A kind of plug-in overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721329263.2U CN207454845U (en) | 2017-10-16 | 2017-10-16 | A kind of plug-in overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454845U true CN207454845U (en) | 2018-06-05 |
Family
ID=62252504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721329263.2U Active CN207454845U (en) | 2017-10-16 | 2017-10-16 | A kind of plug-in overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454845U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486512A (en) * | 2019-08-23 | 2019-11-22 | 段井胜 | A kind of safety valve |
| CN110686105A (en) * | 2019-10-12 | 2020-01-14 | 段井胜 | Pilot-operated type pressure reducing valve |
| CN113217497A (en) * | 2021-05-24 | 2021-08-06 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
-
2017
- 2017-10-16 CN CN201721329263.2U patent/CN207454845U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486512A (en) * | 2019-08-23 | 2019-11-22 | 段井胜 | A kind of safety valve |
| CN110486512B (en) * | 2019-08-23 | 2020-11-24 | 山东中力高压阀门股份有限公司 | Safety valve |
| CN110686105A (en) * | 2019-10-12 | 2020-01-14 | 段井胜 | Pilot-operated type pressure reducing valve |
| CN113217497A (en) * | 2021-05-24 | 2021-08-06 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
| CN113217497B (en) * | 2021-05-24 | 2023-11-21 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
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