CN207268323U - A kind of relief valve - Google Patents
A kind of relief valve Download PDFInfo
- Publication number
- CN207268323U CN207268323U CN201721084561.XU CN201721084561U CN207268323U CN 207268323 U CN207268323 U CN 207268323U CN 201721084561 U CN201721084561 U CN 201721084561U CN 207268323 U CN207268323 U CN 207268323U
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- Prior art keywords
- cavity
- sleeve
- relief valve
- pushing part
- spring
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Abstract
The utility model discloses a kind of relief valve, including valve body, sleeve, the first elastic component, valve deck, push rod and the second elastic component.The valve body has pressure release passage, the first cavity, exhaust outlet and pressure section.The sleeve is arranged in first cavity and is tightly connected with the bottom wall of first cavity, has the second cavity for being directed at the pressure release passage.The upper/lower terminal of first elastic component is connected to the pressure section and the sleeve respectively.The valve deck is fixedly connected with the valve body, has the first gap being in communication with the outside between the valve deck and the valve body.The push rod has pushing part and sealing, the side wall of the sealing and second cavity is tightly connected, the pushing part is pierced by the sleeve and the pressure section and is connected to the valve deck by the second elastic component upwards, there is the second gap between the pushing part and the sleeve, there is third space between the pushing part and the pressure section.In this way, the relief valve can automatically provide suitable pressure release path according to the air pressure size of gases at high pressure.
Description
Technical field
It the utility model is related to high-voltage safety apparatus field, and in particular to a kind of relief valve.
Background technology
Saturated vapor or superheated steam, can rapid sterilization.The penetrability of pure steam is strong, protein, plasm colloid
To be denatured solidification under wet heat condition, enzyme system is easily destroyed, and steam enters condenses into water into the cell, can release potential heat
Amount improves temperature, more enhances sterilizing power.Using high-temperature steam instantaneous sterilizing, microorganism can be not only killed, but also can subtract to greatest extent
The destruction of few nutritional ingredient.Due to the series of advantages of steam sterilizing disinfecting, now much civilian and commercial products all employ heat
Moise-heat sterilization mode.With increase in demand of the market to moise-heat sterilization product, so that many moise-heat sterilization products that have been born, and steam
Vapour sterile products control this part to have the high requirement of comparison in pressure.At present, relief valve on the market is all once or one section
Pressure release, and cannot being automatically adjusted according to pressure size to provide suitable pressure release path, causes after each pressure release in sterilizer
Excessive steam discharge, cause the waste of steam and the energy.
For this reason, it is necessary to a kind of new relief valve is designed, to overcome the above problem.
Utility model content
Technical problem to be solved in the utility model is, after being adjusted in place for existing sliding bar of the prior art
The problem of easily being influenced by external force and continue sliding and rock, changing the position of sliding bar again, there is provided it is a kind of, and it can effectively prevent
Change again after only relative position adjusting is fixed between projecting apparatus and electronic whiteboard.
Technical solution is used by the utility model solves its technical problem：
A kind of relief valve is provided, including：
Valve body, has from the axially extending pressure release passage in bottom surface, connects the first cavity of the pressure release passage downwards, turns on
First cavity and the external world exhaust outlet and be connected with the side wall of first cavity and be located at first cavity in
Pressure section；
Sleeve, in first cavity, has the second axially extending cavity, is let out described in the second cavity alignment
Pressure passageway, the bottom surface of the side wall of second cavity and the bottom wall of first cavity are tightly connected；
First elastic component, its upper/lower terminal are connected to the pressure section and the sleeve respectively；
Valve deck, houses the valve body of part and is fixedly connected with the valve body, had between the valve deck and the valve body
There is the first gap being in communication with the outside；
Push rod, has pushing part and is connected to the sealing of the pushing part lower end, the sealing position is in described second
It is tightly connected in cavity and with the side wall of second cavity, the pushing part is pierced by the sleeve and described compresses successively upwards
Portion is simultaneously connected to the valve deck by the second elastic component, has the second gap, the top between the pushing part and the sleeve
There is third space between pushed section and the pressure section.
In relief valve provided by the utility model, first elastic component includes the first spring, and the sleeve also has certainly
The blocking part of the outer radial protrusion of the side wall of second cavity, the upper end of first spring are connected and fixed on described compress
Portion, the lower end of first spring is socketed on the sleeve, and the lower end surface of first spring is connected to the blocking part.
In relief valve provided by the utility model, the bottom surface of the side wall of second cavity is embedded with the first sealing ring, institute
State the bottom wall that the first sealing ring is connected to first cavity.
In relief valve provided by the utility model, the sealing have set be fixed in the pushing part lower end fixed part and
The expanding part that upper end is connected with the fixed part, the lower end of the expanding part abutted with the side wall of second cavity and with it is described
Fixed part is arranged at intervals.
In relief valve provided by the utility model, the relief valve further includes the second sealing for being sheathed on the pushing part
Circle, the push rod also have the first protrusion formed from the outer circumferential surface radially protruding of the pushing part, and the sleeve further includes
From the second protrusion for radially inside protruding formation of the side wall of second cavity, first protruding parts is in described second
Described second is connected to respectively in cavity and positioned at the downside of second protrusion, the upper/lower terminal of second sealing ring
Protrusion and first protrusion, the side wall of second sealing ring and second cavity are separated at intervals.
In relief valve provided by the utility model, second elastic component includes second spring and is fixed on second bullet
The movable plate at the middle part of spring, the lower end of the second spring are connected and fixed on the valve body, and the upper end of the second spring abuts
In the valve deck；The pushing part stretches into the second spring and is connected to the movable plate.
In relief valve provided by the utility model, the pressure section includes middle part and is equipped with the bottom plate of through hole and around the bottom
The side plate of plate, the side plate are connected with the sidewall thread of first cavity, and the pushing part is pierced by the set from the through hole
Cylinder.
In relief valve provided by the utility model, the valve body includes the first segment with the pressure release passage, and described the
One section of outside is equipped with external screw thread.
In relief valve provided by the utility model, the outside of the first segment is also arranged with the 3rd sealing ring, and the described 3rd
Sealing ring is closely against in the externally threaded upper limb.
In relief valve provided by the utility model, the valve body is further included with first cavity and the exhaust outlet
Second segment, the valve deck house the top of the second segment, and the exhaust outlet is exposed to the valve deck.
Implement provided by the utility model, following beneficial effect can be reached：The relief valve includes valve body, sleeve, the
One elastic component, valve deck, push rod and the second elastic component.The valve body, has from the axially extending pressure release passage in bottom surface, connection downwards
First cavity of the pressure release passage, the exhaust outlet of conducting first cavity and the external world and the side with first cavity
Wall connects and the pressure section in first cavity.The sleeve is arranged in first cavity, is had axially extending
Second cavity, second cavity are directed at the pressure release passage, the bottom surface of the side wall of second cavity and first cavity
Bottom wall be tightly connected.The upper/lower terminal of first elastic component is connected to the pressure section and the sleeve respectively.The valve
Lid houses the valve body of part and is fixedly connected with the valve body, has between the valve deck and the valve body and is in communication with the outside
The first gap.The push rod has pushing part and is connected to the sealing of the pushing part lower end, and the sealing position is in institute
State in the second cavity and be tightly connected with the side wall of second cavity, the pushing part is pierced by the sleeve and institute successively upwards
State pressure section and the valve deck be connected to by the second elastic component, there is the second gap between the pushing part and the sleeve,
There is third space between the pushing part and the pressure section.In this way, the relief valve can be according to the air pressure of gases at high pressure
A size automatically pressure release of selection or secondary pressure release, to provide suitable pressure release path.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model preferred embodiment under natural conditions；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the sectional view under pressure release state of the utility model preferred embodiment；
Fig. 4 is the sectional view under the secondary pressure release state of the utility model preferred embodiment；
Fig. 5 is the schematic perspective view of the utility model preferred embodiment.
The drawing reference numeral explanation of embodiment：
| Valve body | 1 | Sleeve | 2 |
| First elastic component | 3 | Valve deck | 4 |
| Push rod | 5 | Second elastic component | 6 |
| First segment | 11 | Second segment | 12 |
| Pressure release passage | 111 | First cavity | 121 |
| Exhaust outlet | 122 | Pressure section | 13 |
| External screw thread | 112 | Bottom plate | 131 |
| Side plate | 132 | Second cavity | 21 |
| First sealing ring | 22 | Blocking part | 23 |
| First spring | 31 | Accommodating space | 41 |
| First gap | 100 | Notch | 42 |
| Fixing trim ring | 43 | Pushing part | 51 |
| Sealing | 52 | Second spring | 61 |
| Movable plate | 62 | Second gap | 200 |
| Third space | 300 | Fixed part | 521 |
| Expanding part | 522 | Second sealing ring | 53 |
| First protrusion | 54 | Second protrusion | 24 |
| 3rd sealing ring | 14 |
Embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, it is detailed now to compare attached drawing
Illustrate specific embodiment of the present utility model.Obviously, the described embodiments are only a part of the embodiments of the utility model,
Instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creation
Property work under the premise of all other embodiments obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, Figure 2 with shown in Fig. 5, for the preferred embodiment of relief valve provided in this embodiment, the relief valve includes
Valve body 1, sleeve 2, the first elastic component 3, valve deck 4,5 and second elastic component 6 of push rod.The valve body 1, has axially extending from bottom surface
Pressure release passage 111, the first cavity 121, conducting first cavity 121 and the external world that connect the pressure release passage 111 downwards
Exhaust outlet 122 and be connected with the side wall of first cavity 121 and the pressure section 13 in first cavity 121.
The sleeve 2 is arranged in first cavity 121, has the second axially extending cavity 21, and second cavity 21 is directed at institute
Pressure release passage 111 is stated, the bottom surface of the side wall of second cavity 21 and the bottom wall of first cavity 121 are tightly connected.It is described
The upper/lower terminal of first elastic component 3 is connected to the pressure section 13 and the sleeve 2 respectively.The valve deck 4 houses the institute of part
State valve body 1 and be fixedly connected with the valve body 1, there is the first gap being in communication with the outside between the valve deck 4 and the valve body 1
100.The push rod 5 has pushing part 51 and is connected to the sealing 52 of 51 lower end of pushing part, and the sealing 52 is located at
It is tightly connected in second cavity 21 and with the side wall of second cavity 21, the pushing part 51 is pierced by described successively upwards
Sleeve 2 and the pressure section 13 are simultaneously connected to the valve deck 4 by the second elastic component 6, the pushing part 51 and the sleeve 2 it
Between there is the second gap 200, there is third space 300 between the pushing part 51 and the pressure section 13.
In the present embodiment, the valve body 1 includes cylindrical first segment 11 and cylindrical second segment 12, and described
It is connected to the upper end of the first segment 11 for two section 12, and the radial dimension of the second segment 12 is more than the radial direction of the first segment 11
Size.The pressure release passage 111 is to axially penetrate through the circular through hole that the first segment 11 is formed, and first cavity 121 is formed
Connected in the inside of the second segment 12 and with the upper end of the pressure release passage 111, the profile of first cavity 121 is cylinder
The diameter of body and first cavity 121 is more than the diameter of the pressure release passage 111.The lower part of the second segment 12 is equipped with multiple
The exhaust outlet 122, the side wall that the exhaust outlet 122 extends radially through first cavity 121 make it that first cavity 121 is logical
The exhaust outlet 122 is crossed to turn on extraneous.The pressure section 13 includes middle part and is equipped with the rounded bottom plate 131 of through hole and surrounds
The arc-shaped side plate 132 of the bottom plate 131, the side plate 132 are connected with the side wall of first cavity 121.
The sleeve 2 is made of copper material, is substantially cylindrical in shape, and second cavity 21 is to axially penetrate through leading to for the sleeve 2
Hole, the radial dimension of second cavity 21 are more than the radial dimension of the pressure release passage 111.The side wall of second cavity 21
Bottom surface be embedded with the first sealing ring 22, the lower face of first sealing ring 22 is smooth planar annular, and is connected to institute
The bottom wall of the first cavity 121 is stated, so that the bottom surface of the side wall of second cavity 21 and the bottom wall of first cavity 121
It is tightly connected.The sleeve 2 also has the blocking part 23 of the outer radial protrusion of the side wall from second cavity 21, described to support
Stopper 23 is an annular protrusion, it is located at the lower part of the sleeve 2.
First elastic component 3 includes the first spring 31, and the upper end of first spring 31 is connected and fixed on described compress
The bottom plate 131 in portion 13, the lower end of first spring 31 are socketed on the sleeve 2, and the lower end of first spring 31
End face is connected to the blocking part 23, so that the upper/lower terminal of first elastic component 3 is connected to the pressure section respectively
13 and the sleeve 2.
4 lower ending opening of valve deck, the top-down valve body 1 for housing part.Specifically, set in the valve deck 4
There is the accommodating space 41 that size is more than the second segment 12 of the valve body 1, the accommodating space 41 houses described the of the valve body 1
Two section 12 of top, and be spaced apart to form first gap 100 with the second segment 12 of the valve body 1.The valve deck 4 exists
Notch 42 is equipped with the position of the corresponding exhaust outlet 122, to ensure that the exhaust outlet 122 is exposed to the valve deck 4, Jin Erbao
Demonstrate,prove the exhaust outlet 122 and extraneous good conducting.In addition, the lower edge of the valve deck 4 by a fixing trim ring 43 with it is described
The second segment 12 of valve body 1 fastens.
The push rod 5 is made of copper material, and the pushing part 51 is in straight elongated rod shape, and the sealing 52 uses sealing ring.Institute
State the movable plate 62 that the second elastic component 6 includes second spring 61 and is fixed on the middle part of the second spring 61, second bullet
The lower end of spring 61 is connected and fixed on the valve body 1, and the upper end of the second spring 61 is connected to the valve deck 4；The pushing part
51 through hole from the middle part of the pressure section 13 stretches into the second spring 61 after being pierced by and is connected to the movable plate 62, from
And the mandril is abutted with the elasticity of valve deck 4.Second gap 200 is formed at the pushing part 51 and the sleeve 2
Between annular space, the third space 300 is that the annular being formed between the pushing part 51 and the pressure section 13 is empty
Between.
The operation principle of the relief valve is explained as follows：
Pressure release：
When gases at high pressure are discharged from the pressure release passage 111, due to the bottom of the sleeve 2 and first cavity 121
Wall is tightly connected, and the bottom of the push rod 5 is tightly connected further through the sealing 52 and the sleeve 2 so that the set
Cylinder 2 and the push rod 5 jointly form closure to the pressure release passage 111, so that the discharge of the gases at high pressure is prevented,
Gradually increase with the pressure of the gases at high pressure, the gases at high pressure are enough to the active force of the push rod 5 and the sleeve 2
When big, the gases at high pressure can promote the push rod 5 and the sleeve 2 to move up, and at this time, the movable plate 62 is pushed away described
The second spring 61 is compressed under the action of bar 5 and is finally held in the valve deck 4, the sleeve 2 then directly acts on
In first spring 31 so that 31 compression of the first spring, it should be pointed out that at this time the sleeve 2 not with it is described
Pressure section 13 abuts, and first spring 31 still has compression surplus.The sleeve 2 departs from the side of first cavity 121
Wall is no longer tightly connected with the bottom wall of first cavity 121, and therefore, the gases at high pressure can pass through the sleeve 2 and institute
State the gap between the bottom wall of the first cavity 121 and enter first cavity 121, and then discharged by the exhaust outlet 122
To the external world, so as to form a pressure release (referring to Fig. 3, the arrow in Fig. 3 represents the flow path of the gases at high pressure)；
Secondary pressure release：
When the pressure of the gases at high pressure continues increase so that the exhaust outlet 122 has little time to arrange the gases at high pressure
When going out, the gases at high pressure will produce the push rod 5 and the sleeve 2 active force of bigger, and since the push rod 5 is one
The valve deck 4 is held in by the movable plate 62 during secondary pressure release, does not continue the space moved up, therefore, at this time only
Stating sleeve 2 could continue to move up under the action of the gases at high pressure, until the sealing 52 of the push rod 5 stretches out in described
Two cavitys 21 so that the gases at high pressure can be entered in second cavity 21, and pass through second gap 200 and institute
The accommodating space 41 that third space 300 enters the valve deck 4 is stated, then the external world is drained into by first gap 100, so that shape
Into secondary pressure release (referring to Fig. 4, the arrow in Fig. 4 represents the flow path of the gases at high pressure).
From the foregoing, it will be observed that the relief valve can automatically provide suitable pressure release road according to the pressure size of gases at high pressure
Footpath.
Further, the sealing 52 has fixed part 521 and upper end and the institute that set is fixed in 51 lower end of pushing part
State fixed part 521 connection expanding part 522, the lower end of the expanding part 522 abutted with the side wall of second cavity 21 and with
The fixed part 521 is arranged at intervals.In the present embodiment, the expanding part 522 is supported by flexible material, the expanding part 522
The inside sidewalls of lateral surface and second cavity 21 form the acute angle less than 45 degree so that the lower end of the expanding part 522 and
The side wall of second cavity 21 abuts, the upper end of the expanding part 522 and the sidewall spacers of second cavity 21.In this way,
Not only can guarantee that has good leakproofness between the expanding part 522 and the sleeve 2, but can guarantee that the sleeve 2 with it is described
Relative motion between sealing 52 is more smooth.
Further, referring to Fig. 1, the relief valve further includes the second sealing ring 53 for being sheathed on the pushing part 51, institute
Stating push rod 5 also has the first protrusion 54 formed from the outer circumferential surface radially protruding of the pushing part 51, and the sleeve 2 further includes
From the second protrusion 24 for radially inside protruding formation of the side wall of second cavity 21, first protrusion 54 is located at institute
State in the second cavity 21 and supported respectively positioned at the downside of second protrusion 24, the upper/lower terminal of second sealing ring 53
It is connected to second protrusion 24 and first protrusion 54, the side wall of second sealing ring 53 and second cavity 21
It is separated at intervals.In this way, the leakproofness between the push rod 5 and the sleeve 2 can be strengthened, prevent in an above-mentioned pressure leak process
In, the gases at high pressure are flowed out from the gap between the push rod 5 and the sleeve 2.
Further, referring to Fig. 2, the sidewall thread of the side plate 132 of the pressure section 13 and first cavity 121
Connection.In this way, in assembling process, the distance between the pressure section 13 and the sleeve 2 can be according to actual conditions freely
Adjusting, so as to pre-adjust the decrement of first spring 31.
Further, it is equipped with external screw thread 112 referring to Fig. 1, the outside of the first segment 11.In this way, facilitate the relief valve
Destination apparatus (for example, steam disinfecting apparatus etc.) is screwed in, moreover, when needing to add medium into the destination apparatus (for example, water
Deng), the relief valve can be unscrewed, is added at the connector of the relief valve, medium filling is opened up without extra
Mouthful.
Further, the 3rd sealing ring 14, the 3rd sealing are also arranged with referring to Fig. 1, the outside of the first segment 11
Circle 14 is closely against in the upper limb of the external screw thread 112.In the present embodiment, when the relief valve is installed to the destination apparatus
When, the 3rd sealing ring 14 is closely connected to the destination apparatus.In this way, the 3rd sealing ring 14 can ensure described let out
Sealed connection between pressure valve and the destination apparatus, and then ensure the relief valve normal work.
Implement relief valve provided by the utility model, have the advantages that：
1st, the relief valve includes valve body 1, sleeve 2, the first elastic component 3, valve deck 4,5 and second elastic component 6 of push rod.It is described
Valve body 1, has from the axially extending pressure release passage 111 in bottom surface, connects the first cavity 121 of the pressure release passage 111 downwards, leads
Lead to the exhaust outlet 122 of first cavity 121 and the external world and be connected and be located at described with the side wall of first cavity 121
Pressure section 13 in first cavity 121.The sleeve 2 is arranged in first cavity 121, has the second axially extending cavity
21, second cavity 21 is directed at the pressure release passage 111, the bottom surface of the side wall of second cavity 21 and first cavity
121 bottom wall is tightly connected.The upper/lower terminal of first elastic component 3 is connected to the pressure section 13 and the sleeve respectively
2.The valve deck 4 houses the valve body 1 of part and is fixedly connected with the valve body 1, between the valve deck 4 and the valve body 1
With the first gap 100 being in communication with the outside.The push rod 5 has pushing part 51 and is connected to the close of 51 lower end of pushing part
Envelope portion 52, the sealing 52 is located in second cavity 21 and is tightly connected with the side wall of second cavity 21, described
Pushing part 51 is pierced by the sleeve 2 and the pressure section 13 and is connected to the valve deck 4 by the second elastic component 6 successively upwards,
There is the second gap 200 between the pushing part 51 and the sleeve 2, have between the pushing part 51 and the pressure section 13
Third space 300.In this way, the relief valve can automatically select a pressure release or secondary according to the air pressure size of gases at high pressure
Pressure release, to provide suitable pressure release path.
2nd, the sealing 52 has the fixed part 521 and upper end and the fixed part that set is fixed in 51 lower end of pushing part
521 connection expanding parts 522, the lower end of the expanding part 522 abutted with the side wall of second cavity 21 and with the fixation
Portion 521 is arranged at intervals.In this way, not only can guarantee that there is good leakproofness between the expanding part 522 and the sleeve 2, but also energy
Ensure that the relative motion between the sleeve 2 and the sealing 52 is more smooth.
3rd, the relief valve further includes the second sealing ring 53 for being sheathed on the pushing part 51, and the push rod 5 also has certainly
The first protrusion 54 that the outer circumferential surface radially protruding of the pushing part 51 is formed, the sleeve 2 are further included from second cavity
The second protrusion 24 for radially inside protruding formation of 21 side wall, first protrusion 54 are located in second cavity 21
And positioned at the downside of second protrusion 24, it is convex that the upper/lower terminal of second sealing ring 53 is connected to described second respectively
Go out portion 24 and first protrusion 54, the side wall of second sealing ring 53 and second cavity 21 is separated at intervals.In this way,
It can strengthen the leakproofness between the push rod 5 and the sleeve 2, prevent in an above-mentioned pressure leak process, the gases at high pressure
From the gap outflow between the push rod 5 and the sleeve 2.
4th, the side plate 132 of the pressure section 13 is connected with the sidewall thread of first cavity 121.In this way, filling
During matching somebody with somebody, the distance between the pressure section 13 and the sleeve 2 can be according to the adjusting of actual conditions freely, so that in advance
Adjust the decrement of first spring 31.
5th, the outside of the first segment 11 is equipped with external screw thread 112.In this way, facilitate the relief valve to screw in destination apparatus, and
And when need into the destination apparatus add medium when, the relief valve can be unscrewed, at the connector of the relief valve into
Row addition, without additionally opening up medium filler.
6th, the outside of the first segment 11 is also arranged with the 3rd sealing ring 14, and the 3rd sealing ring 14 is closely against in institute
State the upper limb of external screw thread 112.3rd sealing ring 14 can ensure the sealing between the relief valve and the destination apparatus
Connection, and then ensure the relief valve normal work.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, rather than restricted, this area it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
- A kind of 1. relief valve, it is characterised in that including：Valve body, have from the axially extending pressure release passage in bottom surface, connect downwards the pressure release passage the first cavity, conducting described in First cavity and the external world exhaust outlet and be connected with the side wall of first cavity and be located at first cavity in compressing Portion；Sleeve, in first cavity, has the second axially extending cavity, second cavity is directed at the pressure release and leads to Road, the bottom surface of the side wall of second cavity and the bottom wall of first cavity are tightly connected；First elastic component, its upper/lower terminal are connected to the pressure section and the sleeve respectively；Valve deck, houses the valve body of part and is fixedly connected with the valve body, between the valve deck and the valve body have with First gap of external world's connection；Push rod, has pushing part and is connected to the sealing of the pushing part lower end, the sealing position is in second cavity Interior and with second cavity side wall is tightly connected, and the pushing part is pierced by the sleeve and the pressure section simultaneously successively upwards The valve deck is connected to by the second elastic component, there is the second gap, the pushing part between the pushing part and the sleeve There is third space between the pressure section.
- 2. relief valve according to claim 1, it is characterised in that first elastic component includes the first spring, the set Cylinder also has the blocking part of the outer radial protrusion of the side wall from second cavity, and the upper end connection of first spring is fixed In the pressure section, the lower end of first spring is socketed on the sleeve, and the lower end surface of first spring is connected to The blocking part.
- 3. relief valve according to claim 1, it is characterised in that the bottom surface of the side wall of second cavity is embedded with first Sealing ring, first sealing ring are connected to the bottom wall of first cavity.
- 4. relief valve according to claim 1, it is characterised in that there is the sealing set to be fixed in the pushing part lower end Fixed part and the expanding part that is connected with the fixed part of upper end, the lower end of the expanding part and the side wall of second cavity support Connect and be arranged at intervals with the fixed part.
- 5. relief valve according to claim 1, it is characterised in that the relief valve, which further includes, is sheathed on the pushing part Second sealing ring, the push rod also have the first protrusion formed from the outer circumferential surface radially protruding of the pushing part, the set Cylinder further includes the second protrusion for radially inside protruding formation of side wall from second cavity, first protruding parts in It is connected to respectively in second cavity and positioned at the downside of second protrusion, the upper/lower terminal of second sealing ring Second protrusion and first protrusion, the side wall of second sealing ring and second cavity are separated at intervals.
- 6. relief valve according to claim 1, it is characterised in that second elastic component includes second spring and is fixed on The movable plate at the middle part of the second spring, the lower end of the second spring are connected and fixed on the valve body, the second spring Upper end be connected to the valve deck；The pushing part stretches into the second spring and is connected to the movable plate.
- 7. relief valve according to claim 1, it is characterised in that the pressure section include middle part be equipped with through hole bottom plate and Around the side plate of the bottom plate, the side plate is connected with the sidewall thread of first cavity, and the pushing part is from the through hole It is pierced by the sleeve.
- 8. relief valve according to claim 1, it is characterised in that the valve body includes first with the pressure release passage Section, the outside of the first segment is equipped with external screw thread.
- 9. relief valve according to claim 8, it is characterised in that the outside of the first segment is also arranged with the 3rd sealing Circle, the 3rd sealing ring is closely against in the externally threaded upper limb.
- 10. relief valve according to claim 8, it is characterised in that the valve body further include with first cavity and The second segment of the exhaust outlet, the valve deck house the top of the second segment, and the exhaust outlet is exposed to the valve deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084561.XU CN207268323U (en) | 2017-08-28 | 2017-08-28 | A kind of relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084561.XU CN207268323U (en) | 2017-08-28 | 2017-08-28 | A kind of relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268323U true CN207268323U (en) | 2018-04-24 |
Family
ID=61960384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721084561.XU Expired - Fee Related CN207268323U (en) | 2017-08-28 | 2017-08-28 | A kind of relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985727A (en) * | 2019-12-31 | 2020-04-10 | 唐建 | Practical quick adjustment pipeline pressure valve |
| CN112747153A (en) * | 2019-10-30 | 2021-05-04 | 刘锦辉 | Automatic pressure relief valve |
-
2017
- 2017-08-28 CN CN201721084561.XU patent/CN207268323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747153A (en) * | 2019-10-30 | 2021-05-04 | 刘锦辉 | Automatic pressure relief valve |
| CN110985727A (en) * | 2019-12-31 | 2020-04-10 | 唐建 | Practical quick adjustment pipeline pressure valve |
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