CN204239814U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN204239814U CN204239814U CN201420719128.9U CN201420719128U CN204239814U CN 204239814 U CN204239814 U CN 204239814U CN 201420719128 U CN201420719128 U CN 201420719128U CN 204239814 U CN204239814 U CN 204239814U
- Authority
- CN
- China
- Prior art keywords
- magnet
- elastic component
- valve body
- inner chamber
- adjusting nut
- 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
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of safety valve, its technological points is: comprise the valve body with inner chamber, spool is provided with in described inner chamber, be connected with the first elastic component and the second elastic component between described spool and valve body, between described first elastic component and the second elastic component, be provided with the first magnet and the second magnet; Described first magnet, the second magnet all match with the shape size of inner chamber; One end of described first elastic component is fixedly connected with the first magnet, and the other end is connected with spool; One end of described second elastic component is fixedly connected with the second magnet, and the other end is connected with valve body; When described second magnet is placed with the first magnet, corresponding magnetic pole is identical, the utility model, reaches the technique effect that safety valve slows down the impaired long service life of elastic component.
Description
Technical field
The utility model relates to safety valve field, and in particular, it relates to a kind of safety valve.
Background technique
Safety valve is in normally off under open-shut device is subject to External Force Acting, when the pressure medium in equipment or pipeline increases to over specified value, exceedes the Special valve of specified value by preventing pressure medium in pipeline or equipment to discharge medium outside system.Safety valve belongs to self-acting valve class, and be mainly used on boiler, pressure vessels and pipes, pilot pressure is no more than specified value, has run important protective action to personal safety and equipment.Direct spring loaded safety valve utilizes the power of Compress Spring to balance the pressure of flap and to make it sealing.Direct spring loaded safety valve adjusts pressure by the decrement of Regulation spring.Its advantage is less than deadweight safety valve volume, light, highly sensitive, and mounting point is not by strict restriction; Shortcoming is that the power acted on valve rod changes with camber of spring.Must be noted that the heat insulation of spring and heat dissipation problem simultaneously.The acting force of the spring of Direct spring loaded safety valve does not generally exceed 2000 kilograms.Because excessive spring really up to the mark is unsuitable for accurate work, spring can produce radial and axial vibration in valve rod, and service time can cause fatigue damage long afterwards, and the power on valve rod changes with camber of spring, causes stressed shakiness.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide and slows down the impaired and safety valve of elastic component long service life of elastic component.
For achieving the above object, the utility model provides following technological scheme: a kind of safety valve, comprise the valve body with inner chamber, spool is provided with in described inner chamber, be connected with the first elastic component and the second elastic component between described spool and valve body, between described first elastic component and the second elastic component, be provided with the first magnet and the second magnet; Described first magnet, the second magnet all match with the shape size of inner chamber; One end of described first elastic component is fixedly connected with the first magnet, and the other end is connected with spool; One end of described second elastic component is fixedly connected with the second magnet, and the other end is connected with valve body; When described second magnet is placed with the first magnet, corresponding magnetic pole is identical.
By adopting technique scheme, when safety valve is in running order, safety valve promotes the first elastic component motion, due to the homopolar-repulsion of magnet, the principle that heteropole is attracting, make between the first magnet and the second magnet, to there is a repulsive interaction, first magnet, the shape size of the second magnet and inner chamber is all suitable, and the first magnet, the sectional shape of the second magnet and inner chamber is circle, make the first magnet and the second magnet can putting free slippage in inner chamber, there will not be shaking phenomenon, when the first magnet and the second magnet are apart from time nearer, the common suffered repulsive interaction of first magnet and the second magnet is larger, when repulsive interaction is greater than elastic force time, because the second magnet is connected with the second elastic component, second magnet moves, the amount of elastic deformation of the first elastic component and the second elastic component can be reduced, protect the first elastic component and the second elastic component, thus the impaired speed of the fatigue slowing down the first elastic component and the second elastic component.
The utility model is set to further: described inner chamber is provided with slideway, and described first magnet is equipped with the second magnet the slide block coordinated with slideway.
By adopting technique scheme, the first magnet and the run-off the straight when inner chamber moves of the second magnet can be prevented, causing and using upper inconvenience.
The utility model is set to further: described first magnet is provided with cushion pad near one end of the second magnet, and described cushion pad is fixedly connected with the first magnet.
By adopting technique scheme, spool stressed excessive in, can occur to contact between the first magnet with the second magnet, conference of exerting oneself causes damage first magnet and the second magnet, be provided with shock absorber, can, when both contacts, can make to be contacted by shock absorber between the two, play the effect of buffering, thus prevent from the first magnet and the second magnet from colliding causing damage.
The utility model is set to further: described valve body is provided with the adjusting nut for closed cavity, and the two ends of described second elastic component are connected with the second magnet and adjusting nut respectively, and described adjusting nut is threaded with valve housing.
By adopting technique scheme, rotating adjusting nut, adjusting nut can be made at move within lumens, thus the distance adjustment between adjusting nut and spool can be made, when the first elastic component and the second elastic component compress elongation for a long time, first elastic component and the second elastic component there will be aging, cause the first elastic component and the second elastic component elasticity die down, cause and just can promote valve core movement when pressure is very little, under the effect of adjusting nut, the distance between adjusting nut and spool can be shortened.
The utility model is set to further: one end that described valve body is provided with adjusting nut is provided with dust cover, is provided with clip between described dust cover and valve body, and described dust cover is fixed on valve body by clip.
By adopting technique scheme, can prevent dust from entering, prevent dust from causing damage to adjusting nut, dust is prevented to be bonded on adjusting nut screw thread, double thread corrodes, and causes shorten the working life of adjusting nut, the setting of dust cover, external substance can be stopped, the effective working life extending adjusting nut.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model safety valve;
Fig. 2 is the enlarged diagram in A portion in Fig. 1.
In figure: 1, valve body; 2, inner chamber; 3, spool; 4, the first elastic component; 5, the second elastic component; 6, the first magnet; 7, the second magnet; 8, slideway; 9, slide block; 10, cushion pad; 11, adjusting nut; 12, clip; 13, dust cover.
Embodiment
Shown in Fig. 2, a kind of safety valve that present case is implemented, comprise the valve body 1 with inner chamber 2, spool 3 is provided with in described inner chamber 2, be connected with the first elastic component 4 and the second elastic component 5 between described spool 3 and valve body 1, between described first elastic component 4 and the second elastic component 5, be provided with the first magnet 6 and the second magnet 7; Described first magnet 6, second magnet 7 all matches with the shape size of inner chamber 2; One end of described first elastic component 4 is fixedly connected with the first magnet 6, and the other end is connected with spool 3; One end of described second elastic component 5 is fixedly connected with the second magnet 7, and the other end is connected with valve body 1; When described second magnet 7 is placed with the first magnet 6, corresponding magnetic pole is identical;
Described inner chamber 2 is provided with slideway 8, and described first magnet 6 is equipped with the second magnet 7 slide block 9 coordinated with slideway 8; Described first magnet 6 is provided with cushion pad 10 near one end of the second magnet 7, and described cushion pad 10 is fixedly connected with the first magnet 6.
Described valve body 1 is provided with the adjusting nut 11 for closed cavity 2, and the two ends of described second elastic component 5 are connected with the second magnet 7 and adjusting nut 11 respectively, and described adjusting nut 11 is threaded with valve body 1 shell; One end that described valve body 1 is provided with adjusting nut 11 is provided with dust cover 13, is provided with clip 12 between described dust cover 13 and valve body 1, and described dust cover 13 is fixed on valve body 1 by clip 12.
When valve body 1 is in running order, spool 3 promotes the first elastic component 4 and moves, due to the homopolar-repulsion of magnet, the principle that heteropole is attracting, make to there is a repulsive interaction between the first magnet 6 and the second magnet 7, first magnet 6, second magnet 7 is all suitable with the shape size of inner chamber 2, and the first magnet 6, second magnet 7 is circle with the sectional shape of inner chamber 2, the first magnet 6 can be made, the cavity of sealing is formed between second magnet 7 and inner chamber 2, when can make the first magnet 6 movement, first pressurized air, the interaction force between the first magnet 6 and the second magnet 7 can be increased, make the first magnet 6 and the second magnet 7 can putting free slippage in inner chamber 2, there will not be shaking phenomenon, when the first magnet 6 and the second magnet 7 are apart from time nearer, the common suffered repulsive interaction of first magnet 6 and the second magnet 7 is larger, when repulsive interaction is greater than elastic force time, because the second magnet 7 is connected with the second elastic component 5, second magnet moves, inner chamber 2 is provided with slideway 8, first magnet 6 is equipped with the second magnet 7 slide block 9 coordinated with slideway 8, it is convenient when the first magnet 6 and the second magnet 7 can be made to move in cavity, spool 3 stressed excessive in, can occur to contact between the first magnet 6 with the second magnet 7, conference of exerting oneself causes damage first magnet 6 and the second magnet 7, be provided with cushion pad 10, can when both contacts, can make to be contacted by cushion pad 10 between the two, play the effect of buffering, thus prevent from the first magnet 6 and the second magnet 7 from colliding causing damage,
Rotating adjusting nut 11, adjusting nut 11 can be made to move in inner chamber 2, thus the distance adjustment between adjusting nut 11 and spool 3 can be made, when the first elastic component 4 and the second elastic component 5 compress for a long time and extend, first elastic component 4 and the second elastic component 5 there will be aging, cause the first elastic component 4 and the second elastic component 5 elasticity die down, cause and just can promote spool 3 when pressure is very little and move, under the effect of adjusting nut 11, the distance between adjusting nut 11 and spool 3 can be shortened, dust-proof cover is provided with in one end of adjusting nut 11, can prevent dust from entering, prevent dust from causing damage to adjusting nut 11, dust is prevented to be bonded on adjusting nut 11 screw thread, double thread corrodes, cause shorten the working life of adjusting nut 11, the setting of dust cover 13, external substance can be stopped, the working life of effective prolongation adjusting nut 11.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a safety valve, comprises the valve body with inner chamber, is provided with spool, it is characterized in that in described inner chamber:
Be connected with the first elastic component and the second elastic component between described spool and valve body, between described first elastic component and the second elastic component, be provided with the first magnet and the second magnet;
Described first magnet, the second magnet all match with the shape size of inner chamber;
One end of described first elastic component is fixedly connected with the first magnet, and the other end is connected with spool;
One end of described second elastic component is fixedly connected with the second magnet, and the other end is connected with valve body;
When described second magnet is placed with the first magnet, corresponding magnetic pole is identical.
2. safety valve according to claim 1, is characterized in that: described inner chamber is provided with slideway, and described first magnet is equipped with the second magnet the slide block coordinated with slideway.
3. safety valve according to claim 2, is characterized in that: described first magnet is provided with cushion pad near one end of the second magnet, and described cushion pad is fixedly connected with the first magnet.
4. safety valve according to claim 3, is characterized in that: described valve body is provided with the adjusting nut for closed cavity, and the two ends of described second elastic component are connected with the second magnet and adjusting nut respectively, and described adjusting nut is threaded with valve housing.
5. safety valve according to claim 4, is characterized in that: one end that described valve body is provided with adjusting nut is provided with dust cover, is provided with clip between described dust cover and valve body, and described dust cover is fixed on valve body by clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719128.9U CN204239814U (en) | 2014-11-25 | 2014-11-25 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719128.9U CN204239814U (en) | 2014-11-25 | 2014-11-25 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239814U true CN204239814U (en) | 2015-04-01 |
Family
ID=52769312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719128.9U Expired - Fee Related CN204239814U (en) | 2014-11-25 | 2014-11-25 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940050A (en) * | 2016-10-12 | 2018-04-20 | 林德液压两合公司 | The pressure limiting valve of hydrostatic drive system |
-
2014
- 2014-11-25 CN CN201420719128.9U patent/CN204239814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940050A (en) * | 2016-10-12 | 2018-04-20 | 林德液压两合公司 | The pressure limiting valve of hydrostatic drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20161125 |