CN207848507U - A kind of type voltage regulation safety valve - Google Patents
A kind of type voltage regulation safety valve Download PDFInfo
- Publication number
- CN207848507U CN207848507U CN201820075767.4U CN201820075767U CN207848507U CN 207848507 U CN207848507 U CN 207848507U CN 201820075767 U CN201820075767 U CN 201820075767U CN 207848507 U CN207848507 U CN 207848507U
- Authority
- CN
- China
- Prior art keywords
- spool
- core housing
- valve core
- base
- return spring
- 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.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of type voltage regulation safety valve, including valve core housing, piston packing, spool, return spring, knob base, spring base, adjust nut and pull rod；Piston packing, spool, return spring and spring base are assemblied in valve core housing, and spool and spring base are respectively held against the both ends of return spring, and piston packing is assemblied between spool and valve core housing；Knob base is connected by the tail end of screw thread and valve core housing, and pull rod is connect after sequentially passing through knob base, spring base, return spring with spool, adjusts the end face that nut connect with pull rod and resists knob base.In order to enhance the service life of safety valve, piston packing uses combined type V-arrangement polytetrafluoro sealing ring, valve core housing is using embedded tetrafluoro bushing, and in order to be applicable in the different process requirement of client, it can be with the length of fit of adjusting knob seat and valve core housing, to change the decrement of return spring, to reach different set-pressures.
Description
Technical field
The utility model belongs to polyurethane foam or glue injection equipment field, and in particular to a kind of type voltage regulation safety valve.
Background technology
For polyurethane foam/glue injection equipment in normal work, in order to enhance mixed effect, system needs to keep certain pressure
Power.Equipment may will produce the phenomenon of the failure higher than normal pressure because maintaining improper or operation error, and excessively high pressure may
Harmful effect is generated to system, or even causes safety accident.In order to ensure equipment can work normally, system is in metering pump discharge
End is equipped with safety valve.
Existing safety valve is as shown in Figure 1, by valve core housing 103, O-ring seals 104, spool 105,106 groups of return spring
At.O-ring seals 104, spool 105 and return spring 106 are assemblied in valve core housing 103, and valve core housing 103 is assemblied in liquid stream block
On 102, liquid stream block 102 is assemblied on integrated package 101.When system pressure is more than certain value, system pressure is through integrated package
101, liquid stream block 102 is transferred to spool 105, and spool 105 pushes return spring 106 open, and superelevation liquid is through 102 discharge orifice stream of liquid stream block
Go out, setting value is not exceeded with the pressure ensured in system.Presently commercially available safety valve is mostly universal, is chiefly used in hydraulic oil or water
Equal liquid, because polyurethane majority is in acidity, also some is in alkalinity, the easily corrosion and damage of O-ring seals 104, the pressure of safety valve
Generally manufacture when adjusted it is locked, in curstomer's site such as because the technological requirement of client needs to adjust, operation extremely inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of type voltage regulation safety valves, mentioned above in the background art existing to solve
The pressure of some safety valves adjusted in manufacture it is locked, it is extremely inconvenient and sealing ring is perishable in curstomer's site adjustment operation
The problem of damage.
To achieve the above object, the utility model provides the following technical solutions：
A kind of type voltage regulation safety valve, including it is valve core housing, piston packing, spool, return spring, knob base, spring base, whole
Determine nut and pull rod；The piston packing, spool, return spring and spring base are assemblied in valve core housing, the spool and bullet
Spring abutment is respectively held against the both ends of return spring, and the piston packing is assemblied between spool and valve core housing；The knob base is logical
The tail end for crossing screw thread and valve core housing connects, and the pull rod is connect after sequentially passing through knob base, spring base, return spring with spool,
The end face for adjusting nut and being connect with pull rod and resisting the knob base.
Preferably, the piston packing uses combined type V-arrangement polytetrafluoro sealing ring.
Preferably, the valve core housing is using embedded tetrafluoro bushing.
Preferably, the valve core housing is assemblied on liquid stream block.
Preferably, the liquid stream is packaged fits on integrated package.
Compared with prior art, the utility model has the beneficial effects that：
In order to enhance the service life of safety valve, piston packing is sealed the utility model using combined type V-arrangement polytetrafluoro
Circle, valve core housing, which uses, embeds tetrafluoro bushing, and in order to be applicable in the different process requirement of client, can be with adjusting knob seat and spool
The length of fit of set, to change the decrement of return spring, to reach different set-pressures.
The advantages of the utility model, will provide in the description of specific embodiment part below, will partly be retouched from following
Become apparent in stating, or recognize by the practice of the utility model.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing safety valve.
Fig. 2 is the structural schematic diagram of the utility model type voltage regulation safety valve.
In Fig. 1：101, integrated package；102, liquid stream block；103, valve core housing；104, O-ring seals；105, spool；106, it returns
Position spring.
In Fig. 2：201, integrated package；202, liquid stream block；203, valve core housing；204, piston packing；205, spool；206, it returns
Position spring；207, knob base；208, spring base；209, nut is adjusted；2010, pull rod.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 2, the utility model provides following technical scheme：A kind of type voltage regulation safety valve by valve core housing 203, is lived
Plug sealing ring 204, return spring 206, knob base 207, spring base 208, adjusts 2010 groups of nut 209 and pull rod at spool 205
At.Piston packing 204, spool 205 and return spring 206, spring base 208 are assemblied in valve core housing 203, wherein spool 205
Be respectively held against the both ends of return spring 206 with spring base 208, piston packing 204 be assemblied in spool 205 and valve core housing 203 it
Between.Knob base 207 is connect by screw thread with the tail end of valve core housing 203.Pull rod 2010 sequentially passes through knob base 207, spring base
208, it is connect with spool 205 after return spring 206.Adjust the end that nut 209 connect with pull rod 2010 and resists knob base 207
Face.Valve core housing 203 is assemblied on liquid stream block 202, and liquid stream block 202 is assemblied on integrated package 201.
The operation principle and using method of the utility model：Referring to Fig.2, when system pressure is more than certain value, system
Interior pressure is transferred to spool 205 through integrated package 201, liquid stream block 202, and spool 205 pushes return spring 206 open, and superelevation liquid is through liquid
The outflow of 202 discharge orifice of block is flowed, setting value is not exceeded with the pressure ensured in system.In order to enhance the utility model safety valve
Service life, piston packing 204 use combined type V-arrangement polytetrafluoro sealing ring, and valve core housing 203 is using embedded tetrafluoro bushing.For
It is applicable in the different process requirement of client, knob base 207 is threadedly coupled with valve core housing 203, can with adjusting knob seat 207 and spool
The length of fit of set 203, to change the decrement of return spring 206, to reach different set-pressures.
It can understand the above description of the embodiments is intended to facilitate those skilled in the art and apply this specially
Profit.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to here
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (5)
1. a kind of type voltage regulation safety valve, it is characterised in that：Including valve core housing (203), piston packing (204), spool (205),
Return spring (206), spring base (208), adjusts nut (209) and pull rod (2010) at knob base (207)；The piston seal
Circle (204), spool (205), return spring (206) and spring base (208) are assemblied in valve core housing (203), the spool (205)
Be respectively held against the both ends of return spring (206) with spring base (208), the piston packing (204) be assemblied in spool (205) with
Between valve core housing (203)；The knob base (207) is connect by screw thread with the tail end of valve core housing (203), the pull rod (2010)
Knob base (207), spring base (208), return spring (206) is sequentially passed through to connect with spool (205) afterwards, it is described to adjust nut
(209) it is connect with pull rod (2010) and resists the end face of the knob base (207).
2. a kind of type voltage regulation safety valve according to claim 1, it is characterised in that：The piston packing (204) uses
Combined type V-arrangement polytetrafluoro sealing ring.
3. a kind of type voltage regulation safety valve according to claim 1, it is characterised in that：The valve core housing (203) is using embedded
Tetrafluoro bushing.
4. a kind of type voltage regulation safety valve according to claim 1, it is characterised in that：The valve core housing (203) is assemblied in liquid
It flows on block (202).
5. a kind of type voltage regulation safety valve according to claim 4, it is characterised in that：The liquid stream block (202) is assemblied in collection
On blocking (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075767.4U CN207848507U (en) | 2018-01-17 | 2018-01-17 | A kind of type voltage regulation safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075767.4U CN207848507U (en) | 2018-01-17 | 2018-01-17 | A kind of type voltage regulation safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848507U true CN207848507U (en) | 2018-09-11 |
Family
ID=63414944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820075767.4U Expired - Fee Related CN207848507U (en) | 2018-01-17 | 2018-01-17 | A kind of type voltage regulation safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704068A (en) * | 2020-12-25 | 2021-04-27 | 常州胜杰生命科技股份有限公司 | Novel green S-methoprene wettable powder and preparation method and application thereof |
-
2018
- 2018-01-17 CN CN201820075767.4U patent/CN207848507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704068A (en) * | 2020-12-25 | 2021-04-27 | 常州胜杰生命科技股份有限公司 | Novel green S-methoprene wettable powder and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |