CN104141820A - Elastic limit check ring for valve and valve adopting elastic limit check ring - Google Patents
Elastic limit check ring for valve and valve adopting elastic limit check ring Download PDFInfo
- Publication number
- CN104141820A CN104141820A CN201310472051.XA CN201310472051A CN104141820A CN 104141820 A CN104141820 A CN 104141820A CN 201310472051 A CN201310472051 A CN 201310472051A CN 104141820 A CN104141820 A CN 104141820A
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- seal ring
- circumferential body
- perforation
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
Abstract
The invention discloses an elastic limit check ring for a valve and the valve adopting the elastic limit check ring. The valve comprises a valve body provided with a valve cavity, wherein a valve rod penetrates through the valve body; one end of the valve rod penetrates into the valve cavity and is fixedly connected with a valve core, and the other end penetrates out of the valve cavity through a penetration hole in the valve body; the valve rod is sleeved with a sealing ring; an axial limit structure for axially limiting the sealing ring is correspondingly arranged in the penetration hole or the valve cavity and comprises the elastic limit check ring; the elastic limit check ring comprises an annular main body nested on the valve rod with a gap, a stop surface is arranged at one end, facing the sealing ring, of the annular main body; a stop part in corresponding stop limit matching with the stop surface of the annular main body is arranged in the penetration hole or the valve cavity; and elastic sheets bent to one side opposite to the stop surface are uniformly distributed in the circumferential direction of the outer edge of the annular main body, and are propped open in the radial direction of the annular main body. Through thrust limit matching of the elastic limit check ring and the sealing ring, the sealing ring is axially limited and rapidly assembled.
Description
Technical field
The present invention relates to a kind of valve with elastic spacing back-up ring and use the valve of this elastic spacing back-up ring.
Background technique
Safety valve is a kind of common valve, is mainly used on boiler, pressurized container and pipeline.In the application for a patent for invention that is CN103047456A at notice of authorization number, a kind of Direct spring loaded safety valve is disclosed, it comprises valve body, in valve body, be provided with valve pocket, on valve body, offer the influent stream passage and the current drainage channel that are communicated with valve pocket respectively, in valve pocket, along the guide direction of straight line, move back and forth and be equipped with for controlling the spool of influent stream passage and current drainage channel break-make.On valve body, along spool movement direction mobile guide, be equipped with valve rod, one end of valve rod penetrates in valve pocket to be connected with spool, the other end passes valve pocket to be in transmission connection with the spring load maintainer being arranged on outside valve pocket, spring load maintainer comprises along the cylindrical shell of valve rod axially extended top sealing, in cylindrical shell, guiding movement is equipped with spring seat, spring seat and valve rod are connected, in cylindrical shell, guiding is equipped with to spring seat and applies the spring that forces spring seat to move to the working position that disconnects fluid passage and current drainage channel by valve rod band movable valve plug, the top, upper end of spring is pressed on cylindrical shell, its top, lower end is pressed on spring seat.Spool is in normally off under the effect of spring, and now, spool disconnects influent stream passage and current drainage channel.When being increased to, the fluid medium pressure at influent stream passage place can push spool open so that when influent stream passage and current drainage channel conducting, prevent from surpassing specified value with pipeline or the fluid medium pressure in equipment of influent stream channel connection by current drainage channel exhaust fluid medium outside system.
Valve rod in above-mentioned safety valve passes valve pocket, on valve body, offer along the perforation that valve rod extends axially and one end is communicated with valve pocket, stem guiding moves and is assemblied in perforation, between valve rod and perforation, be provided with the seal ring that prevents that flowing medium from revealing from perforation, on the inner hole wall of perforation, one offers seal ring mounting groove, seal ring is embedded in seal ring mounting groove, and by the both sides cell wall along valve rod bearing of trend of seal ring mounting groove, seal ring is carried out to axial limiting.
The above-mentioned seal ring being arranged between valve rod and valve body is embedded in seal ring mounting groove, is mostly to adopt the strong mode filling to assemble when fitting tight circle, and seal ring is installed cumbersome, and is also easily causing the additional wear of seal ring in strong process of assembling.And using one end after the time, in the time of need to changing seal ring when seal ring inefficacy, the seal ring of removing after losing efficacy from seal ring mounting groove is also cumbersome.
Summary of the invention
The object of this invention is to provide a kind of valve being assemblied in valve elastic spacing back-up ring, to solve, in prior art, be arranged in the cumbersome technical problem of seal ring dismounting between valve rod and valve body; Meanwhile, the present invention also provides a kind of valve that uses above-mentioned elastic spacing back-up ring.
For achieving the above object, valve provided by the present invention by the technological scheme of elastic spacing back-up ring is: a kind of valve elastic spacing back-up ring, comprise circumferential body, in circumferential body, be coaxially provided with for gap and be sleeved on the endoporus on the valve rod of valve, one end of circumferential body has the stopping surface of the spacing cooperation of the corresponding block of push stopping part for being provided with valve, the outer rim place of circumferential body is around being circumferentially evenly equipped with towards the shell fragment that deviates from a lateral buckling of described stopping surface, each shell fragment is radially opening along circumferential body all, on shell fragment, there is the support for the corresponding part elastic top press fit with valve.
Stopping surface in described circumferential body is the end face of described circumferential body corresponding end.
The technological scheme of valve provided by the present invention is: a kind of valve, comprise valve body, in valve body, be provided with valve pocket, in valve pocket, be furnished with the spool for control valve break-make, valve body is provided with valve rod, one end of valve rod penetrates in valve pocket and with spool and is connected, the perforation that the other end is provided with through valve body passes described valve pocket, valve rod upper sleeve through has the seal ring for preventing that in valve pocket, flowing medium leaks in described perforation or valve pocket, corresponding being furnished with for seal ring being carried out to the axial limit structure of axial limiting in described perforation or valve pocket, described axial limit structure comprise be arranged in seal ring one side for the spacing elastic spacing back-up ring coordinating of seal ring thrust, elastic spacing back-up ring comprises that gap is sleeved on the circumferential body on valve rod, one end towards seal ring of circumferential body has stopping surface, in described perforation or valve pocket, be provided with the stopper part for the spacing cooperation of the corresponding block of the stopping surface with circumferential body, the outer rim place of circumferential body is around being circumferentially evenly equipped with towards the shell fragment that deviates from a lateral buckling of described stopping surface, each shell fragment is radially strutting along circumferential body all, on shell fragment, there is the support for the corresponding part elastic top press fit with perforation or valve pocket.
The inner of described perforation extends to described valve pocket, described seal ring and the equal correspondence of elastic spacing back-up ring be assemblied in perforation, have from bore inner end along perforation axially extended mounting hole section, the stopper part that in described perforation, the corresponding block of the corresponding stopping surface for circumferential body being provided with coordinates is arranged on described mounting hole section, described axial limit structure also comprise in described mounting hole section in a side that deviates from elastic spacing back-up ring of seal ring, be provided with for the spacing annular stopping surface coordinating of seal ring thrust, this annular stopping surface coordinates the axial limiting of realizing seal ring with described elastic spacing back-up ring.
Stopping surface in described circumferential body is the end face of described circumferential body corresponding end, described in the stopper part that is arranged in mounting hole section be the annular table terrace that deviates from described seal ring being provided with in mounting hole section.
Corresponding part for the corresponding elastic top press fit in the support with shell fragment in described mounting hole section is taper hole structure, taper hole structure is positioned at a side of described seal ring, and the radial dimension of one end towards seal ring of taper hole structure is greater than the radial dimension of the other end of taper hole structure.
Described seal ring is X shape ring.
Described valve body is provided with influent stream passage and the current drainage channel being communicated with valve pocket, described spool is by controlling the break-make of influent stream passage and current drainage channel with the break-make of control valve, described influent stream passage and current drainage channel include channel body and double card bell and spigot joint, between channel body and double card bell and spigot joint, are provided with the fastening connection piece for both are fastened together.
Usefulness of the present invention is: valve provided by the present invention is with elastic spacing back-up ring and use the valve of this elastic spacing back-up ring, by axial limit structure, seal ring is carried out to axial limiting, axial limit structure comprises the elastic spacing back-up ring that is arranged in seal ring one side, elastic spacing back-up ring by with the spacing axial limiting of realizing seal ring that coordinates of seal ring thrust, during fitting tight circle, seal ring correspondence is packed in the perforation or valve pocket of valve, then elastic spacing back-up ring correspondence is packed in perforation or valve pocket, stopping surface in the circumferential body of elastic spacing back-up ring and the spacing cooperation of the corresponding block in stopper part being provided with in perforation or valve pocket, the support of the shell fragment on elastic spacing back-up ring elastic top is pressed in the corresponding part in described perforation or valve pocket, because each shell fragment on elastic spacing back-up ring all radially opens along circumferential body, when the support of shell fragment and the corresponding part elastic top press fit in described perforation or valve pocket, corresponding part in described perforation or valve pocket will apply opposition to elastic spacing back-up ring by shell fragment, this opposition elastic spacing back-up ring axially on have component, this component will force elastic spacing back-up ring top to be pressed on the stopper part being provided with in described perforation or valve pocket to realize the axial limiting to elastic spacing back-up ring, and then coordinate to realize the axial limiting to seal ring by elastic spacing back-up ring and seal ring thrust are spacing, realize the quick assembling of seal ring, while avoiding filling by force, to seal ring, cause additional wear.And when needs are changed seal ring, can first elastic spacing back-up ring be removed, the seal ring of inefficacy is pulled down, again new seal ring is packed in perforation or valve pocket, finally elastic spacing back-up ring is reloaded in perforation or valve pocket, can complete the replacing to seal ring, change efficient and convenient.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of elastic spacing back-up ring plan view for valve provided by the present invention;
Fig. 2 is the plan view of the back-up ring of elastic spacing shown in Fig. 1;
Fig. 3 is use provided by the present invention a kind of embodiment's of the safety valve of elastic spacing back-up ring structural representation as shown in Figure 1.
Embodiment
As Fig. 1, shown in Fig. 2, the embodiment of elastic spacing back-up ring for a kind of valve, elastic spacing back-up ring in this embodiment comprises circumferential body 51, in circumferential body 51, be coaxially provided with for gap and be sleeved on the endoporus on the valve rod of valve, the end face of one end of circumferential body 51 is the stopping surface 510 of the spacing cooperation of the corresponding block of push stopping part for being provided with valve, the outer rim place of circumferential body 51 is around being circumferentially evenly equipped with towards the shell fragment 52 that deviates from a lateral buckling of described stopping surface 510, each shell fragment 52 is radially opening along circumferential body 51 all, on shell fragment 52, there is the support for the corresponding part elastic top press fit with valve.
In the present embodiment, the end face of one end of circumferential body 51 is stopping surface, in other embodiments, can annular boss be set in the corresponding end of circumferential body 51, now, the annular table terrace at the annular boss bottom place of circumferential body 51 can be the stopping surface of the spacing cooperation of the corresponding block of push stopping part for being provided with valve, now, in the pilot hole that the annular boss of circumferential body 51 can corresponding insertion valve be provided with formation guide structure.
As shown in Figure 3, a kind of embodiment of safety valve, safety valve in this embodiment comprises valve body, valve body comprises main valve body 1 and bonnet 7, main valve body is provided with valve pocket 12, main valve body 1 top offers the upper mounting hole being communicated with valve pocket 12, and described bonnet 7 scyewed joint, in upper mounting hole, offer influent stream passage 13, its sidepiece of being communicated with valve pocket 12 and offer the current drainage channel 14 being communicated with valve pocket 12 in the bottom of main valve body 1.In valve pocket 12, the guide direction of the upper and lower straight line in edge moves back and forth and is equipped with for controlling the spool of safety valve break-make, spool comprises base 2, lower seal 15 and base guard ring 3, and spool is controlled the break-make of safety valve by controlling the break-make realization of influent stream passage 13 and current drainage channel 14.On main valve body 2, along spool movement direction, offer the inner perforation being communicated with valve pocket, in perforation, guiding movement is equipped with for applying to spool and forces spool to the valve rod 4 of controlling the active force that working position that safety valve disconnects moves, one end of valve rod 4 penetrates in valve pocket and with spool and is connected, its other end passes described valve pocket and be connected with load maintainer, and power carry-out part and the valve rod of load maintainer are in transmission connection.
For preventing that the flowing medium in valve pocket from leaking through perforation, between valve rod 4 and perforation, be provided with seal ring 11, upper seal ring 11 is X shape ring, specifically, in perforation, have from bore inner end along the axially extended mounting hole section 6 of perforation, upper seal ring 11 correspondences are assemblied in mounting hole section 6, corresponding being furnished with for upper seal ring 11 being carried out to the axial limit structure of axial limiting in mounting hole section 6, axial limit structure comprises the annular stopping surface for coordinating with the unidirectional thrust of upper seal ring 11 towards seal ring that the bottom of mounting hole section 6 has, annular stopping surface is arranged in a side of seal ring, axial limit structure also comprise be arranged in seal ring opposite side for the spacing elastic spacing back-up ring 5 coordinating of seal ring thrust, the structure of this elastic spacing back-up ring 5 is as Fig. 1, shown in Fig. 2, do not repeat them here, specifically, in mounting hole section 6, have deviate from seal ring 11 for the spacing annular table terrace coordinating of described elastic spacing back-up ring block, the circumferential body gap of elastic spacing back-up ring 5 is sleeved on valve rod, and the stopping surface in circumferential body and spacing cooperation of described annular table terrace block, each shell fragment of elastic spacing back-up ring 5 is all towards a lateral buckling that deviates from upper seal ring 11, on shell fragment, there is the support for the corresponding part elastic top press fit with mounting hole section.
Above-mentioned load maintainer is spring load maintainer, it comprises the cylindrical shell 8 of top seal, in cylindrical shell 8, along spool movement direction guiding movement, be equipped with spring seat 10, the one end that passes valve pocket and the spring seat 10 of valve rod 4 are connected, in cylindrical shell 8, correspondence is equipped with stage clip, and the top, one end of stage clip is pressed on spring seat 10, the corresponding top of the other end is pressed on cylindrical shell 8.
Influent stream passage 13 in above-described embodiment and current drainage channel 14 include channel body and double card bell and spigot joint, double card bell and spigot joint comprises corresponding inserting front cutting ferrule 16 and rear cutting ferrule 17 together, between channel body and double card bell and spigot joint, be provided with the fastening connection piece for both are fastened together, fastening connection piece herein mainly comprises tightening nut 18.
In above-described embodiment, the thickness of elastic spacing back-up ring is less, easily produces plastic deformation, thereby realizes easy-to-mount object.
In above-described embodiment, the load maintainer moving to the working position of controlling safety valve disconnection for actuate valve stem band movable valve plug is spring load maintainer, in other embodiments, also can adopt weight arm formula load maintainer of the prior art or pulsed load maintainer to move back and forth in the guide direction of perforation with actuate valve stem.
In above-described embodiment, for preventing that the seal ring that valve pocket flowing medium leaks is arranged in perforation, in other embodiments, also corresponding seal ring can be assemblied in valve pocket, now, the mounting hole section of corresponding fitting tight circle is also arranged in valve pocket.
In above-described embodiment, corresponding part for the corresponding elastic top press fit in the support with shell fragment in mounting hole section is straight hole structure, in other embodiments, the corresponding part of the corresponding elastic top press fit in the support for shell fragment in mounting hole section is taper hole structure, taper hole structure is positioned at a side of described upper seal ring, and the radial dimension of one end towards upper seal ring of taper hole structure is greater than the radial dimension of the other end of taper hole structure.
In above-described embodiment, the axial limit structure that upper seal ring is carried out to axial limiting comprises the annular stopping surface being provided with in elastic spacing back-up ring and mounting hole section, in other embodiments, also can be respectively equipped with in the axial both sides of upper seal ring two elastic spacing back-up rings, now, the axial limit structure that upper seal ring is carried out to axial limiting mainly consists of two elastic spacing back-up rings.
In above-described embodiment, the annular table terrace that deviates from described upper seal ring being provided with in mounting hole section is the stopper part coordinating for block corresponding to elastic spacing back-up ring being provided with in mounting hole section, in other embodiments, stopper part also can be for being installed at the block packing ring in mounting hole section.
In above-described embodiment, seal ring and elastic spacing back-up ring are all arranged in mounting hole section, in other embodiments, elastic spacing back-up ring also can not be arranged in mounting hole section, but be arranged on according to actual needs other there is the stopper part for coordinating with elastic spacing back-up ring block and can be used for elastic spacing back-up ring on the mounting structure of corresponding part of the corresponding elastic top press fit of shell fragment.
In above-described embodiment, elastic spacing back-up ring is applied in safety valve, spool moves along the guide direction of straight line, and valve rod is also driven and done straight line motion by spring load maintainer, valve rod and the assembling of valve body guiding movement.Spool and the valve rod that in other embodiments, also elastic spacing back-up ring can be applied in to other are done straight-line valve as in guiding valve.Also or by elastic spacing back-up ring be applied in valve that valve rod and spool rotate as on ball valve, corresponding load maintainer actuate valve stem and the valve core rotation that actuate valve stem of the prior art is rotated that adopt controlled the break-make of valve to realize.
Claims (8)
1. a valve elastic spacing back-up ring, it is characterized in that: comprise circumferential body, in circumferential body, be coaxially provided with for gap and be sleeved on the endoporus on the valve rod of valve, one end of circumferential body has the stopping surface of the spacing cooperation of the corresponding block of push stopping part for being provided with valve, the outer rim place of circumferential body is around being circumferentially evenly equipped with towards the shell fragment that deviates from a lateral buckling of described stopping surface, each shell fragment all, along radially the opening of circumferential body, has the support for the corresponding part elastic top press fit with valve on shell fragment.
2. valve according to claim 1 elastic spacing back-up ring, is characterized in that: the stopping surface in described circumferential body is the end face of described circumferential body corresponding end.
3. a valve, comprise valve body, in valve body, be provided with valve pocket, in valve pocket, be furnished with the spool for control valve break-make, on valve body, be equipped with valve rod, one end of valve rod penetrates in valve pocket and with spool and is connected, the perforation that the other end is provided with through valve body passes described valve pocket, valve rod upper sleeve through has the seal ring for preventing that in valve pocket, flowing medium leaks in described perforation or valve pocket, corresponding being furnished with for seal ring being carried out to the axial limit structure of axial limiting in described perforation or valve pocket, it is characterized in that: described axial limit structure comprise be arranged in seal ring one side for the spacing elastic spacing back-up ring coordinating of seal ring thrust, elastic spacing back-up ring comprises that gap is sleeved on the circumferential body on valve rod, one end towards seal ring of circumferential body has stopping surface, in described perforation or valve pocket, be provided with the stopper part for the spacing cooperation of the corresponding block of the stopping surface with circumferential body, the outer rim place of circumferential body is around being circumferentially evenly equipped with towards the shell fragment that deviates from a lateral buckling of described stopping surface, each shell fragment is radially strutting along circumferential body all, on shell fragment, there is the support for the corresponding part elastic top press fit with perforation or valve pocket.
4. valve according to claim 3, it is characterized in that: the inner of described perforation extends to described valve pocket, described seal ring and the equal correspondence of elastic spacing back-up ring be assemblied in perforation, have from bore inner end along perforation axially extended mounting hole section, the stopper part that in described perforation, the corresponding block of the corresponding stopping surface for circumferential body being provided with coordinates is arranged on described mounting hole section, described axial limit structure also comprise in described mounting hole section in a side that deviates from elastic spacing back-up ring of seal ring, be provided with for the spacing annular stopping surface coordinating of seal ring thrust, this annular stopping surface coordinates the axial limiting of realizing seal ring with described elastic spacing back-up ring.
5. valve according to claim 4, it is characterized in that: the stopping surface in described circumferential body is the end face of described circumferential body corresponding end, described in the stopper part that is arranged in mounting hole section be the annular table terrace that deviates from described seal ring being provided with in mounting hole section.
6. valve according to claim 4, it is characterized in that: the corresponding part for the corresponding elastic top press fit in the support with shell fragment in described mounting hole section is taper hole structure, taper hole structure is positioned at a side of described seal ring, and the radial dimension of one end towards seal ring of taper hole structure is greater than the radial dimension of the other end of taper hole structure.
7. according to the valve described in any one in claim 3 to 6, it is characterized in that: described seal ring is X shape ring.
8. according to the valve described in any one in claim 3 to 6, it is characterized in that: described valve body is provided with influent stream passage and the current drainage channel being communicated with valve pocket, described spool is by controlling the break-make of influent stream passage and current drainage channel with the break-make of control valve, described influent stream passage and current drainage channel include channel body and double card bell and spigot joint, between channel body and double card bell and spigot joint, are provided with the fastening connection piece for both are fastened together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472051.XA CN104141820A (en) | 2013-10-11 | 2013-10-11 | Elastic limit check ring for valve and valve adopting elastic limit check ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472051.XA CN104141820A (en) | 2013-10-11 | 2013-10-11 | Elastic limit check ring for valve and valve adopting elastic limit check ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141820A true CN104141820A (en) | 2014-11-12 |
Family
ID=51851091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310472051.XA Pending CN104141820A (en) | 2013-10-11 | 2013-10-11 | Elastic limit check ring for valve and valve adopting elastic limit check ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018031661A1 (en) * | 2016-08-10 | 2018-02-15 | Cameron International Corporation | Diamond sintered sampling relief valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530373A (en) * | 1983-02-22 | 1985-07-23 | Nupro Company | Pressure relief valve |
| CN1136649A (en) * | 1995-01-17 | 1996-11-27 | 瓦莱奥电机设备公司 | Rolling bearing especial rear bearing of automobile ac generator |
| CN2690801Y (en) * | 2004-01-20 | 2005-04-06 | 南京普鲁卡姆电器有限公司 | Gas control valve |
| JP2005273555A (en) * | 2004-03-25 | 2005-10-06 | Aisan Ind Co Ltd | Regulator for high-pressure fluid |
| CN201575181U (en) * | 2009-03-06 | 2010-09-08 | 浙江艾迪西流体控制股份有限公司 | Ball valve provided with bilateral clamp springs |
| CN202056432U (en) * | 2011-05-06 | 2011-11-30 | 浙江亚登阀门管件有限公司 | Through terminal connector with double clamping sleeves |
| CN103047456A (en) * | 2012-12-29 | 2013-04-17 | 平湖市瑞阳精密机械有限公司 | Safety valve |
| CN103343833A (en) * | 2013-07-09 | 2013-10-09 | 福建海洋铜业有限公司 | Mechanical valve lock with dual protection mechanisms |
-
2013
- 2013-10-11 CN CN201310472051.XA patent/CN104141820A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530373A (en) * | 1983-02-22 | 1985-07-23 | Nupro Company | Pressure relief valve |
| CN1136649A (en) * | 1995-01-17 | 1996-11-27 | 瓦莱奥电机设备公司 | Rolling bearing especial rear bearing of automobile ac generator |
| CN2690801Y (en) * | 2004-01-20 | 2005-04-06 | 南京普鲁卡姆电器有限公司 | Gas control valve |
| JP2005273555A (en) * | 2004-03-25 | 2005-10-06 | Aisan Ind Co Ltd | Regulator for high-pressure fluid |
| CN201575181U (en) * | 2009-03-06 | 2010-09-08 | 浙江艾迪西流体控制股份有限公司 | Ball valve provided with bilateral clamp springs |
| CN202056432U (en) * | 2011-05-06 | 2011-11-30 | 浙江亚登阀门管件有限公司 | Through terminal connector with double clamping sleeves |
| CN103047456A (en) * | 2012-12-29 | 2013-04-17 | 平湖市瑞阳精密机械有限公司 | Safety valve |
| CN103343833A (en) * | 2013-07-09 | 2013-10-09 | 福建海洋铜业有限公司 | Mechanical valve lock with dual protection mechanisms |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018031661A1 (en) * | 2016-08-10 | 2018-02-15 | Cameron International Corporation | Diamond sintered sampling relief valve |
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Application publication date: 20141112 |