CN209309440U - A kind of safety valve - Google Patents
A kind of safety valve Download PDFInfo
- Publication number
- CN209309440U CN209309440U CN201821767878.8U CN201821767878U CN209309440U CN 209309440 U CN209309440 U CN 209309440U CN 201821767878 U CN201821767878 U CN 201821767878U CN 209309440 U CN209309440 U CN 209309440U
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- Prior art keywords
- magnet
- plug
- valve sleeve
- valve
- connector
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of safety valves, include valve body, magnet assembly and plug, connector and aperture are provided on the valve body, the magnet assembly and plug are arranged in valve body, and magnet assembly makes plug block connector by magnetic force.In the present invention; the safety valve makes the good seal performance of the safety valve by the setting of magnet assembly and plug; it is corrosive or non-corrosive liquid suitable for any, and since good airtightness makes it that can protect pump in the case where pump discharge pipeline or outlet valve block.
Description
Technical field
The utility model belongs to metering pump security protection technology field, in particular to a kind of safety valve for metering pump.
Background technique
Metering pump is also referred to as constant displacement pump or proportioning pump.Metering pump be it is a kind of can satisfy various stringent process flow needs,
Flow can within the scope of 0-100% step-less adjustment, for conveying a kind of special positive displacement pump of liquid (especially corrosive liquids).
Metering pump is one kind of fluid conveying machine, and outstanding feature is can to keep the constant flow rate unrelated with discharge pressure.It uses
Metering pump can be completed at the same time the function of conveying, metering and adjusting, to simplify the technological process of production.
Safety valve is that opening and closing element is in normally off under by external force, is surpassed when the pressure medium in equipment or pipeline increases
When crossing specified value, by outside system discharge medium come to prevent pressure medium in pipeline or equipment be more than the particular usage valve of specified value
Door.Its particularity is because being different from the effect that other valves function only as switch, it is often more important that plays protection equipment
Safety.
Protection for metering pump, predominantly three kinds of modes in the prior art:
1, conventional security valve: installing on the export pipeline of metering pump, and when loine pressure is higher than setting value, pressure is unloaded
Fall；When the blocking of the export pipeline of metering pump, can play the role of protecting metering pump, but when the blocking of the outlet valve of metering pump,
Then conventional security valve unprotect function, and outlet valve is the place that blocking is easiest in whole system.
2, piezoelectric transducer: installing on the pump head of metering pump, when pressure is higher than setting value, powers off to metering pump；It is applicable in
In non-corrosive liquid, but then helpless for mordant liquid, and sensor be easy by it is extraneous it is various because
The probability of element interference is higher, is easy error.
3, built-in relief valve: it is suitable for Hydraulic Diaphragm Metering Pump and pressure is laid down when pressure is higher than setting value；But only
It is suitable for Hydraulic Diaphragm Metering Pump.(present invention is suitable for any metering pump)
Conventional security valve is using the channel between the outlet and entrance of spring forces diaphragm partition safety valve, due to diaphragm sheet
Body deflection is little, prevent diaphragm is from very separating the channel between conventional security valve outlet and entrance, it cannot be very
Sealing, so that leakage can be generated, therefore conventional security valve cannot be mounted on metering pump head (metering pump work as the present invention
There are two types of working condition when making: it sucking and spues, it, then can be answering when discharge state when conventional security valve cannot be sealed very
The liquid leakage of the discharge is fallen；When suction condition, then air can be sucked, destroy metering pump and suct vacuum state, or even can lead
Cause metering pump that can not work)
In the patent application that number of patent application is CN201621073711.2, a kind of safety for metering pump is disclosed
Valve comprising piston component, spring and hold down assembly, wherein the piston component, which is installed on, to be opened on the metering pump pump housing
In accommodating cavity, the accommodating cavity pumps intracorporal hydraulic cavities with metering pump and is connected, and the piston component includes piston rod and work
Plug, the internal diameter of the accommodating cavity cooperate the outer diameter of the piston to be arranged, and the spring is placed on the work by the compression that holds down assembly
On stopper rod.
Safety valve for metering pump disclosed above is that partition safety is realized by the setting of spring and piston component
Channel between valve outlet and entrance, but the durability of spring is inadequate, cannot seal well after following the string, to can produce
Raw leakage, influence using.
Summary of the invention
To solve the above problems, the purpose of this utility model is to provide a kind of safety valve, the safety valve not only leakproofness
Can be good, it is corrosive or non-corrosive liquid suitable for any, and since good airtightness makes it in pump discharge pipeline
Or pump can be protected in the case where outlet valve blocking.
To achieve the above object, the technical solution of the utility model is as follows:
The utility model provides a kind of safety valve, includes valve body, magnet assembly and plug, the company of being provided on the valve body
Connector and aperture, the magnet assembly and plug are arranged in valve body, and magnet assembly makes plug block connection by magnetic force
Head.In the present invention, after metering pump export pipeline or outlet valve are blocked, the pressure in metering pump be will increase, and be reached
To after the maximum design pressure of metering pump, plug is opened, liquid can be flowed out from aperture, give metering pump head pressure release to reach
Effect, protect metering pump not damaged by overload, when the pressure recovery in metering pump is normal, under the magnetic force, plug
Connector can be blocked again, to ensure the normal operation of pump, the close of the safety valve is made by the setting of magnet assembly and plug
Sealing property is good, is corrosive or non-corrosive liquid suitable for any, and since good airtightness makes it in pump discharge
Pipeline or outlet valve can protect pump in the case where blocking.
Further, which further includes attachment base, and the valve body includes inner valve sleeve and outer valve sleeve, the magnet assembly
Including the first magnet and the second magnet, the inner valve sleeve is fixedly connected with outer valve sleeve and the inner valve sleeve is enclosed with outer valve sleeve
One accommodates the cavity of plug, attachment base, the first magnet, is provided with the connector, the connection at the top of the inner valve sleeve
Head is connected to metering pump, and the side wall of the inner valve sleeve offers the aperture, and the aperture is connected to exterior space, the plug
It is each attached on attachment base with the first magnet, the plug is located at the one end of the attachment base towards connector, first magnetic
Iron is located at the one end of the attachment base far from connector, and second magnet is fixed in outer valve sleeve, first magnet and
The homopolarity of two magnet is opposite, so that attachment base is had past connector direction in inner valve sleeve by the repulsion of the first magnet and the second magnet
Active force, drive plug get lodged in connector position.In the present invention, the plug is the big plug of deformable amount, works as meter
After amount pump discharge pipeline or outlet valve are blocked, the pressure in metering pump be will increase, and reach the maximum design pressure of metering pump
Afterwards, plug is opened, liquid can be flowed out from the aperture of inner valve sleeve side wall, to have the function that give metering pump head pressure release, be protected
It has protected metering pump not damaged by overload, when the pressure recovery in metering pump is normal, under the magnetic force, plug can be blocked again
Connector makes the safety valve by the setting of the magnet principle that identical charges repel each other and plug to ensure the normal operation of pump
Good seal performance, and since good airtightness protect it can in the case where pump discharge pipeline or outlet valve block
Pump.
Further, the safety valve further includes having adjusting block, is also provided in the outer valve sleeve and accommodates the second magnet, adjusts
The cavity of locking nub, it is described accommodate the second magnet, the inner wall of cavity of adjusting block is provided with internal screw thread, the adjusting block outer wall setting
There is an external screw thread compatible with internal screw thread, second magnet is fixed on the one end of adjusting block towards the first magnet, and described second
Magnet is fixed in outer valve sleeve by the adjusting block, and the adjusting block is adapted to adjustment knobs with externally threaded by internal screw thread
Into the depth in outer valve sleeve, to adjust the first magnet at a distance from the second magnet.In the present invention, pass through adjusting block
Setting, the repulsion of adjustable first magnet and the second magnet, so that the pressure size that plug is able to bear is adjusted, it can be according to meter
It measures the maximum pressure of pump and ensures the normal of pump to preferably protect metering pump the pressure size for adjusting and being able to bear is arranged
Operation.
Further, the cross section of the outer valve sleeve is H-shaped, and the top of the H-shaped outer valve sleeve is enclosed with inner valve sleeve
The first cavity of plug, attachment base, the first magnet is accommodated, the lower part of the H-shaped outer valve sleeve, which is also provided with, accommodates adjusting block and the
Second cavity of two magnet, first cavity are isolated with the second cavity by the middle part of the H-shaped outer valve sleeve.In the utility model
In, by above-mentioned setting, make that the top of outer valve sleeve is connected with inner valve sleeve it is even closer while, the first magnetic of more convenient adjusting
Iron is at a distance from the second magnet.
Further, the joining place of the inner valve sleeve and outer valve sleeve is additionally provided with sealing ring.In the present invention, pass through
The setting of sealing ring can make inner valve sleeve and being connected for outer valve sleeve even closer, keep the using effect of the safety valve more preferable.
Further, the connector, plug, the first magnet, the second magnet central point point-blank, it is described
Safety valve is axially symmetric structure.In the present invention, by above-mentioned setting, the stress of plug can be made more to concentrate, makes to block up
More stable blocks connector, keeps the airtight performance of the safety valve more preferable.
Further, the plug is corrosion resistant rubber material, and the plug is arc.In the present invention, arc
Shape plug can be with the better seamless connection of connector, and airtightness is more preferable, and the deformable amount of the plug of rubber material is big, Er Qienai
Corrosion, can make plug preferably block connector, sealing performance is more preferable.
Further, the second cavity that the size of the attachment base is enclosed with the inner valve sleeve with outer valve sleeve is mutually fitted
Match, the attachment base is plastics or metal material.
Further, first magnet and the second magnet are permanent magnet.In the present invention, pass through permanent magnetic
The setting of iron can make the safety valve, and the service life is longer.
Further, first magnet is coated with protective film, and the protective film is corrosion-resistant material.In this reality
It is using the protective film of corrosion-resistant material that magnet is fully wrapped around in novel, it avoids magnet from contacting with liquid, reaches corrosion resistant
Purpose.
The utility model has the beneficial effects that: compared with the prior art, in the present invention, when metering pump discharge pipe
After road or outlet valve are blocked, the pressure in metering pump be will increase, and after the maximum design pressure for reaching metering pump, open stifled
Head, liquid can be flowed out from aperture, to have the function that give metering pump head pressure release, metering pump be protected not damaged by overload
Bad, when the pressure recovery in metering pump is normal, under the magnetic force, plug can block connector again, to ensure pump
Operate normally, the good seal performance of the safety valve made by the setting of magnet assembly and plug, be corrosive suitable for any or
Non-corrosive liquid, and since good airtightness protect it can in the case where pump discharge pipeline or outlet valve block
Shield pump.
Detailed description of the invention
Fig. 1 is a kind of sectional view of safety valve of the utility model.
Fig. 2 is a kind of embodiment schematic diagram of safety valve of the utility model.
Fig. 3 is a kind of adjusting block of safety valve of the utility model and the second magnet is fixed on cross-sectional view in outer valve sleeve.
Fig. 4 is a kind of cross-sectional view of the outer valve sleeve of safety valve of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to shown in Fig. 1-4, the utility model provides a kind of safety valve, includes valve body, magnet assembly and plug 3, institute
It states and is provided with connector 11 and aperture 12 on valve body, the magnet assembly and plug 3 are arranged in valve body, and magnet assembly is logical
Crossing magnetic force makes plug 3 block connector.In the present invention, after metering pump export pipeline or outlet valve are blocked, meter
Pressure in amount pump will increase, and after the maximum design pressure for reaching metering pump, open plug 3, and liquid can be flowed out from aperture 12,
To have the function that give metering pump head pressure release, metering pump is protected not damaged by overload, the pressure recovery in metering pump is just
Chang Shi, under the magnetic force, plug 3 can block connector 11 again and pass through magnet assembly to ensure the normal operation of pump
The good seal performance for making the safety valve with the setting of plug 3 is corrosive or non-corrosive liquid suitable for any, Er Qieyou
Make it that can protect pump in the case where pump discharge pipeline or outlet valve block in good airtightness.
In the present embodiment, which further includes attachment base 4, and the valve body includes inner valve sleeve 1 and outer valve sleeve 2, described
Magnet assembly includes the first magnet 5 and the second magnet 6, and inner valve sleeve 1 is fixedly connected with outer valve sleeve 2 and inner valve sleeve 1 is enclosed with outer valve sleeve 2
It closes and forms the cavity for accommodating plug 3, attachment base 4, the first magnet 5, the top of inner valve sleeve 1 is provided with connector 11, connects
First 11 are connected to metering pump, and the side wall of inner valve sleeve 1 offers aperture 12, and aperture 12 is connected to exterior space, plug 3 and the first magnetic
Iron 5 is each attached on attachment base 4, and plug 3 is located at attachment base 4 towards one end of connector 11, and the first magnet 5 is located at attachment base 4
One end far from connector 11, the second magnet 6 are fixed in outer valve sleeve 2, and the first magnet 5 is opposite with the homopolarity of the second magnet 6, are led to
The active force that the repulsion of the first magnet 5 and the second magnet 6 makes attachment base 4 have past 11 direction of connector in inner valve sleeve 1 is crossed, is driven
Plug 3 is got lodged at connector 11.In the present invention, after metering pump export pipeline or outlet valve are blocked, metering pump
Interior pressure will increase, and after the maximum design pressure for reaching metering pump, open plug 3, liquid can opening from 1 side wall of inner valve sleeve
Hole 12 is flowed out, to have the function that give metering pump head pressure release, metering pump is protected not damaged by overload, the pressure in metering pump
When power restores normal, under the magnetic force, plug 3 can block connector 11 again and pass through to ensure the normal operation of pump
The setting of the magnet principle that identical charges repel each other and plug 3 makes the good seal performance of the safety valve, and due to good airtightness
Make it that can protect pump in the case where pump discharge pipeline or outlet valve block.
In the present embodiment, safety valve further includes having adjusting block 7, is also provided in outer valve sleeve 2 and accommodates the second magnet 6, adjusts
The cavity of locking nub 7, accommodates the second magnet 6, the inner wall of cavity of adjusting block 7 is provided with internal screw thread 21, and 7 outer wall of adjusting block is provided with
External screw thread 71 compatible with internal screw thread 21, the second magnet 6 are fixed on adjusting block 7 towards one end of the first magnet 5, the second magnet
6 are fixed in outer valve sleeve 2 by adjusting block 7, and adjusting block 7 is adapted to adjustment knobs into outer by internal screw thread 21 and external screw thread 71
Depth in valve pocket 2, to adjust the first magnet 5 at a distance from the second magnet 6.In the present invention, pass through adjusting block 7
Setting, the repulsion of adjustable first magnet 5 and the second magnet 6, so that the pressure size that plug 3 is able to bear is adjusted, it can root
The pressure size for adjusting and being able to bear is set according to the maximum pressure of metering pump and ensures pump to preferably protect metering pump
It operates normally.
In the present embodiment, the cross section of outer valve sleeve 2 is H-shaped, and the top of H-shaped outer valve sleeve 2 and inner valve sleeve 1 are enclosed appearance
Receive the first cavity 22 of plug 3, attachment base 4, the first magnet 5, the lower part of H-shaped outer valve sleeve 2, which is also provided with, accommodates adjusting block 7 and the
Second cavity 23 of two magnet 6, the first cavity 22 are isolated with the second cavity 23 by the middle part of H-shaped outer valve sleeve 2.In the utility model
In, by above-mentioned setting, make that the top of outer valve sleeve 2 is connected with inner valve sleeve 1 it is even closer while, it is more convenient to adjust first
Magnet 5 is at a distance from the second magnet 6.
In the present embodiment, the joining place of inner valve sleeve 1 and outer valve sleeve 2 is additionally provided with sealing ring 8.In the present invention,
Inner valve sleeve 1 and being connected for outer valve sleeve 2 can be made even closer by the setting of sealing ring 8, make the using effect of the safety valve more
It is good.
In the present embodiment, the central point of connector 11, plug 3, the first magnet 5, the second magnet 6 is in straight line
On, safety valve is axially symmetric structure.In the present invention, by above-mentioned setting, the stress of plug 3 can be made more to concentrate,
Make plug 3 it is more stable block connector 11, keep the airtight performance of the safety valve more preferable.
In the present embodiment, plug 3 is corrosion resistant rubber material, and plug 3 is arc.In the present invention, arc
Plug 3 can be with the better seamless connection of connector 11, and airtightness is more preferable, and the deformable amount of the plug 3 of rubber material is big, and
It is corrosion-resistant, plug 3 can be made preferably to block connector 11, sealing performance is more preferable.
In the present embodiment, the size of attachment base 4 is fitted with 23 phase of the second cavity that inner valve sleeve 1 and outer valve sleeve 2 are enclosed
Match, attachment base 4 is plastics or metal material.
In the present embodiment, the first magnet 5 and the second magnet 6 are permanent magnet.In the present invention, by permanent
The setting of magnet can make the safety valve, and the service life is longer.
In the present embodiment, the first magnet 5 is coated with protective film, and protective film is corrosion-resistant material.It is practical at this
It is using the protective film of corrosion-resistant material that magnet is fully wrapped around in novel, it avoids magnet from contacting with liquid, reaches corrosion resistant mesh
's.
The utility model has the beneficial effects that: compared with the prior art, in the present invention, when metering pump discharge pipe
After road or outlet valve are blocked, the pressure in metering pump be will increase, and after the maximum design pressure for reaching metering pump, open stifled
Head, liquid can be flowed out from aperture, to have the function that give metering pump head pressure release, metering pump be protected not damaged by overload
Bad, when the pressure recovery in metering pump is normal, under the magnetic force, plug can block connector again, to ensure pump
Operate normally, the good seal performance of the safety valve made by the setting of magnet assembly and plug, be corrosive suitable for any or
Non-corrosive liquid, and since good airtightness protect it can in the case where pump discharge pipeline or outlet valve block
Shield pump.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of safety valve, it is characterised in that include valve body, magnet assembly and plug, be provided on the valve body connector and
Aperture, the magnet assembly and plug are arranged in valve body, and magnet assembly makes plug block connector by magnetic force；The peace
Full valve further includes attachment base, and the valve body includes inner valve sleeve and outer valve sleeve, and the magnet assembly includes the first magnet and the second magnetic
Iron, the inner valve sleeve is fixedly connected with outer valve sleeve and the inner valve sleeve and outer valve sleeve be enclosed a receiving plug, attachment base,
The cavity of first magnet, the plug and the first magnet are each attached on attachment base, and the plug is located at the attachment base direction
One end of connector, first magnet are located at the one end of the attachment base far from connector, and second magnet is fixed on outer
In valve pocket, first magnet is opposite with the homopolarity of the second magnet, makes attachment base by the repulsion of the first magnet and the second magnet
There is the active force in past connector direction in inner valve sleeve, plug is driven to get lodged in connector position.
2. safety valve according to claim 1, it is characterised in that be provided with the connector, institute at the top of the inner valve sleeve
It states connector to be connected to metering pump, the side wall of the inner valve sleeve offers the aperture, and the aperture is connected to exterior space.
3. safety valve according to claim 2, it is characterised in that the safety valve further includes having adjusting block, the outer valve sleeve
Inside be also provided with the cavity for accommodating the second magnet, adjusting block, it is described accommodate the second magnet, the inner wall of cavity of adjusting block is provided with
Internal screw thread, the adjusting block outer wall are provided with external screw thread compatible with internal screw thread, and second magnet is fixed on adjusting block court
To one end of the first magnet, second magnet is fixed in outer valve sleeve by the adjusting block, and the adjusting block passes through interior spiral shell
Line with the externally threaded adjustment knobs that are adapted into the depth in outer valve sleeve, to adjust the first magnet at a distance from the second magnet.
4. safety valve according to claim 3, it is characterised in that the cross section of the outer valve sleeve is H-shaped, the outer valve of the H-shaped
The top of set and inner valve sleeve are enclosed the first cavity for accommodating plug, attachment base, the first magnet, under the H-shaped outer valve sleeve
Portion is also provided with the second cavity for accommodating adjusting block and the second magnet, and first cavity and the second cavity are by valve outside the H-shaped
The middle part of set is isolated.
5. safety valve according to claim 2, it is characterised in that the joining place of the inner valve sleeve and outer valve sleeve is additionally provided with
Sealing ring.
6. safety valve according to claim 2, it is characterised in that the connector, plug, the first magnet, second magnet
Point-blank, the safety valve is axially symmetric structure to central point.
7. safety valve according to claim 1, it is characterised in that the plug is corrosion resistant rubber material, the plug
For arc.
8. safety valve according to claim 2, it is characterised in that the size of the attachment base and the inner valve sleeve and outer valve
It covers the cavity being enclosed to be adapted, the attachment base is plastics or metal material.
9. safety valve according to claim 2, it is characterised in that first magnet and the second magnet are permanent magnet.
10. safety valve according to claim 2, it is characterised in that first magnet is coated with protective film, institute
Stating protective film is corrosion-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767878.8U CN209309440U (en) | 2018-10-30 | 2018-10-30 | A kind of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767878.8U CN209309440U (en) | 2018-10-30 | 2018-10-30 | A kind of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209309440U true CN209309440U (en) | 2019-08-27 |
Family
ID=67671839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821767878.8U Withdrawn - After Issue CN209309440U (en) | 2018-10-30 | 2018-10-30 | A kind of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209309440U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253287A (en) * | 2018-10-30 | 2019-01-22 | 深圳市协鸿环保设备有限公司 | A kind of safety valve and its working method |
| CN117108764A (en) * | 2023-10-24 | 2023-11-24 | 上海龙猛机械有限公司 | Pressure-controlled back pressure valve and control method thereof |
-
2018
- 2018-10-30 CN CN201821767878.8U patent/CN209309440U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253287A (en) * | 2018-10-30 | 2019-01-22 | 深圳市协鸿环保设备有限公司 | A kind of safety valve and its working method |
| CN117108764A (en) * | 2023-10-24 | 2023-11-24 | 上海龙猛机械有限公司 | Pressure-controlled back pressure valve and control method thereof |
| CN117108764B (en) * | 2023-10-24 | 2024-01-30 | 上海龙猛机械有限公司 | Pressure-controlled back pressure valve and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 area 401a, Lijiang factory, Hangcheng Avenue, Gushu community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Dawsones fluid technology (Shenzhen) Co.,Ltd. Address before: 518000 area 401a, Lijiang factory, Hangcheng Avenue, Gushu community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN XIEHONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190827 Effective date of abandoning: 20230718 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190827 Effective date of abandoning: 20230718 |