CN205446836U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN205446836U CN205446836U CN201620291400.7U CN201620291400U CN205446836U CN 205446836 U CN205446836 U CN 205446836U CN 201620291400 U CN201620291400 U CN 201620291400U CN 205446836 U CN205446836 U CN 205446836U
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- CN
- China
- Prior art keywords
- valve body
- instruction
- valve
- pressure
- indication
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- Expired - Fee Related
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Abstract
The utility model discloses a safety valve, including the valve body of tube -shape, arrange the case in the valve body in, threaded connection is at the pressure regulating plug of valve body opening part to and the both ends spring of contradicting with case, pressure regulating plug respectively, its technical essential lies in: round circumference spout has been seted up in the outside of pressure regulating plug, still includes an indicator, this indicator's one end be the link and through this link sliding connection in the spout, the instruction groove parallel with the valve body center pin is seted up to the side of valve body, indicator holds for indicateing towards the one end in the valve body outside, and this instruction end is worn to establish in indicateing the groove, and indicates the edge in groove to set gradually the scale of indicateing case pressure. The utility model aims at providing a simple structure, stability, the small visual safety valve of pressure adjustment.
Description
Technical field
This utility model relates to a kind of pipeline overload protection field, particularly to a kind of relief valve.
Background technology
Relief valve: when the pressure medium in equipment or pipeline increases to over setting, by relief valve discharge medium outside system, thus in preventing pipeline or equipment, pressure medium exceedes the Special valve of specified value.
Disclosed in 18 days November in 2015, patentee is PetroChina Company Ltd., the Chinese patent of Publication No. CN204784906U discloses a kind of adjustable visual alarm formula relief valve: include valve body, valve body lower end is provided with threaded import, valve body lower end sidewall is provided with threaded outlet, valve body upper end connects regulation gland, regulation gland is provided with graduation mark, valve body is provided with graduated scale, spool it is provided with inside valve body lower end, sealing ring it is provided with between spool and import, it is provided with compression spring and center-pole between regulation gland and spool, regulation gland upper end is provided with attention device, the switch of attention device is connected with center-pole, negative pressure generator it is provided with in outlet.
Safety valve structure is improved by above-mentioned patent structure, is added pressure scale scale, it is achieved pressure visualization regulation.But its structure is for providing moving range to increase the entire length of relief valve to graduated scale, causes relief valve volume to increase, makes troubles for installing, using.
Utility model content
The purpose of this utility model is to provide a kind of relief valve with compact.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of relief valve, valve body including tubular, the spool being placed in valve body, it is threaded in the pressure regulation screw plug at valve body openings, and two ends respectively with spool, the spring that pressure regulation screw plug is conflicted, wherein: the outside of described pressure regulation screw plug offers a circle circumference chute, also include an indication piece, one end of this indication piece is for connecting end and being slidably connected in chute by this connection end, the side opening of valve body is provided with the instruction groove parallel with valve body central shaft, described indication piece is indication end towards the one end outside valve body, this indication end is located in instruction groove, and the edge of instruction groove is disposed with the scale of instruction spool pressure.
Rotating pressure regulation screw plug, pressure regulation screw plug is moved axially along valve body by the female thread of valve body, and indication piece is followed pressure regulation screw plug in the lump and slided in instruction groove, forms the pressure after instruction device instruction spring is extruded by pressure regulation screw plug with scale combination and changes.Because the design of this instruction device the whole America is on valve body with pressure regulation screw plug, overall structure is stable, compact, uses installation the most simple and convenient.
Further, described connection end is spheroidal.
Utilize connection end and the chute contact internal walls of spheroidal, decrease frictional resistance between the two.
Further, described indication piece is with to be connected end threaded.
Facilitate the dismounting and change of indication piece.
Further, described instruction rooved face is provided with deep gouge, and described scale is positioned at the bottom land of deep gouge.
It is prevented effectively from scale to be in valve body surface and be worn.
Further, described indication end is provided with the pointer being covered in deep gouge bottom land.
On the one hand the another pressure of pointer is utilized to show more accurate；On the other hand pointer is covered in deep gouge bottom land and is also prevented effectively from pointer and highlights at accompanying drawing outer and be worn, its protective effect.
In sum, this utility model has the advantages that 1, volume is little, deformation outside valve body of safety valve will be caused big because of the setting of instruction device；2, Stability Analysis of Structures, indication piece is embedded in valve inner, is prevented effectively from indication piece abrasion, damages.
Accompanying drawing explanation
Fig. 1 is the structural representation of relief valve in embodiment 1；
Fig. 2 is the structural representation of indication piece in embodiment 1；
Fig. 3 is the structural representation indicating groove in embodiment 1；
Fig. 4 is the structural representation of deep gouge in embodiment 3.
Reference: 1, valve body；11, locking nut；12, valve seat；13, liquid set is unloaded；14, spool；2, spring；3, pressure regulation screw plug；31, chute；4, indication piece；41, end is connected；42, indication end；43, pointer；5, instruction groove；51, scale；52, deep gouge.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment 1: a kind of relief valve, see Figure of description 1, including cylindric valve body 1, valve body 1 lower end is locking nut 11, for connecting discharge tube, locking nut 11 is arranged above valve seat 12, below valve seat 12 UNICOM, the liquid that unloads of locking nut 11 and side overlaps 13, valve seat 12 has spool 14, spool 14 is pushed down by the spring 2 of top, is blocked on valve seat 12, and the upper end of spring 2 is pressure regulation screw plug 3, and there is screw thread the medial wall of valve body 1, pressure regulation screw plug 3 is axially moved in valve body 1 by this screw thread, simultaneously compression spring 2.
See Figure of description 2,3, offering a circle circumference chute 31 in the outside of pressure regulation screw plug 3, also include an indication piece 4, one end of this indication piece 4 is for connecting end 41 and being slidably connected in chute 31 by this connection end 41, the cross section of chute 31 is circular, and connects end 41 in spherical setting.And connect end 41 is sized to be slightly smaller than chute 31 so that it is can just slide in chute 31.The side opening of valve body 1 is provided with and valve body 1 central shaft parallel instruction groove 5, and described indication piece 4 is indication end 42 towards the one end outside valve body 1, and this indication end 42 is located in instruction groove 5, and the edge of instruction groove 5 is disposed with the scale 51 of instruction spool 14 pressure.
Rotating pressure regulation screw plug 3, pressure regulation screw plug 3 is moved axially along valve body 1 by the female thread of valve body 1, and indication piece 4 is followed pressure regulation screw plug 3 in the lump and slided in instruction groove 5, forms the pressure after instruction device instruction spring 2 is extruded by pressure regulation screw plug 3 with scale 51 combination and changes.
Embodiment 2, sees Figure of description 2, and with differing only in of embodiment 1: offer a screwed hole being connected on end 41, the end of indication piece 4 is then provided with the screw rod coordinated with this screwed hole, and indication piece 4 is connected with being connected end 41 by this screw rod.
Embodiment 3, sees Figure of description 4, with differing only in of embodiment 1: instruction groove 5 surface configuration has deep gouge 52, scale 51 to be positioned at the bottom land of deep gouge 52.The pointer 43 being covered in deep gouge 52 bottom land it is provided with on indication end 42.Be prevented effectively from scale 51, pointer 43 is worn because being in valve body 1 surface.
Claims (5)
- null1. a relief valve，Valve body (1) including tubular，The spool (14) being placed in valve body (1)，It is threaded in the pressure regulation screw plug (3) of valve body (1) opening part，And two ends respectively with spool (14)、The spring (2) that pressure regulation screw plug (3) is conflicted，It is characterized in that: the outside of described pressure regulation screw plug (3) offers circle circumference chute (31)，Also include an indication piece (4)，One end of this indication piece (4) is for connecting end (41) and being slidably connected in chute (31) by this connection end (41)，The side opening of valve body (1) is provided with the instruction groove (5) parallel with valve body (1) central shaft，Described indication piece (4) is indication end (42) towards the one end in valve body (1) outside，This indication end (42) is located in instruction groove (5)，And the edge of instruction groove (5) is disposed with the scale (51) of instruction spool (14) pressure.
- Relief valve the most according to claim 1, is characterized in that: described connection end (41) is spheroidal.
- Relief valve the most according to claim 2, is characterized in that: described indication piece (4) is with to be connected end (41) threaded.
- Relief valve the most according to claim 1, is characterized in that: described instruction groove (5) surface configuration has deep gouge (52), described scale (51) to be positioned at the bottom land of deep gouge (52).
- Relief valve the most according to claim 4, is characterized in that: be provided with the pointer (43) being covered in deep gouge (52) bottom land on described indication end (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291400.7U CN205446836U (en) | 2016-04-09 | 2016-04-09 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291400.7U CN205446836U (en) | 2016-04-09 | 2016-04-09 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446836U true CN205446836U (en) | 2016-08-10 |
Family
ID=56606783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620291400.7U Expired - Fee Related CN205446836U (en) | 2016-04-09 | 2016-04-09 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792542A (en) * | 2022-05-27 | 2023-09-22 | 南通金百吉五金制造有限公司 | Adjustable pressure relief valve suitable for buffer tank |
-
2016
- 2016-04-09 CN CN201620291400.7U patent/CN205446836U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792542A (en) * | 2022-05-27 | 2023-09-22 | 南通金百吉五金制造有限公司 | Adjustable pressure relief valve suitable for buffer tank |
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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 |
Granted publication date: 20160810 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |