CN105351533A - Double-seal fire hydrant - Google Patents
Double-seal fire hydrant Download PDFInfo
- Publication number
- CN105351533A CN105351533A CN201510753771.2A CN201510753771A CN105351533A CN 105351533 A CN105351533 A CN 105351533A CN 201510753771 A CN201510753771 A CN 201510753771A CN 105351533 A CN105351533 A CN 105351533A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- sealing
- fire hydrant
- double
- 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.)
- Granted
Links
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
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
-
- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a double-seal fire hydrant which comprises a valve seat, a valve rod, a water inflow channel and a valve body arranged on the valve seat. A water outflow joint is arranged on one side of the valve body. The valve body is hollow so that a valve body cavity can be formed. The top and the bottom of the valve body are open. A valve body gland is arranged at the top of the valve body and provided with a sealing cover. The valve rod vertically penetrates the sealing cover and the valve body gland and extends into the valve body cavity. The water outflow joint is communicated with the valve body cavity. The water inflow channel vertically penetrates the valve seat to be communicated with the valve body cavity. A hand wheel for driving the valve rod to rotate is arranged at the top of the valve rod. A first sealing structure is arranged at the joint of the valve body gland and the valve rod. A second sealing structure is arranged at the bottom of the valve body and connected with the lower end of the valve rod in a sliding manner. The second sealing structure and the valve rod can rotate respectively or the second sealing structure does not rotate. The double-seal fire hydrant is good in sealing effect, the water leakage problem generated due to the fact that the fire hydrant is not tightly closed can be solved, the fire hydrant is easy to open and close, and therefore fire can be extinguished in time.
Description
Technical field
The present invention relates to a kind of fire hydrant, particularly relate to a kind of double-sealing fire hydrant.
Background technique
Fire hydrant, as a kind of fire fighting supply facility, mainly implements fire extinguishing for fire-fighting truck from municipal water supply pipe network or the water intaking of outdoor fire fighting water supply network, or direct connection with water hose, hydraulic giant puts out a fire.For a long time, in subway work installing engineering, often meet fire hydrant that the hydrant system in fire-fighting system uses because closing and poorly sealedly causing seepy question, the appearance of this problem annoyings the operation security of metro fire-fighting system and vehicle always, brings very large trouble also to construction quality and maintenance management simultaneously.And traditional fire hydrant makes valve rod move upward at rotation handwheel, thus opens valve plate when utilizing high-pressure water flow to put out a fire, rotate the very difficult and effort of handwheel, cause to open valve plate fast, thus incur loss through delay fire extinguishing good opportunity.
Because above-mentioned defect, the design people's actively in addition research and innovation, to founding a kind of double-sealing fire hydrant of new structure, makes it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of good sealing effect, being easy to the double-sealing fire hydrant of switch.
Double-sealing fire hydrant of the present invention, comprise valve seat, be arranged at the intake tunnel on described valve seat, be arranged at the valve body above described valve seat, be arranged at the valve rod in described valve body, the side of described valve body is provided with water outlet mouthpiece, described valve inner hollow forms valve cavity, this valve cavity is connected with water outlet mouthpiece, described body top and bottom are respectively arranged with the upper shed and under shed that are connected with described valve cavity, described under shed is connected with intake tunnel, described body top is provided with the valve body gland suitable with described upper shed, described valve body gland is provided with sealing cover, described valve rod stretches in valve cavity by valve body, and run through sealing cover valve body gland successively, described valve rod has the top being positioned at described valve body outside and arranges with relative described top and stretch to the bottom of described valve cavity, described top is provided with the handwheel that band ovable valve stem rotates, the second sealing configuration is provided with in described under shed, and described second sealing configuration can move up and down along the movement direction of valve body by relatively described under shed, described second sealing configuration is connected with the lower slide of described valve rod, described second sealing configuration comprises the hard valve plate of radial seal, the soft valve plate of lateral seal and sealing clamp, described sealing clamp and the soft valve plate of lateral seal is stacked is placed on the hard valve plate of radial seal, described sealing clamp end face is provided with toroidal cavity, the radial-thrust bearing for reducing surface friction drag between described valve rod and sealing clamp is provided with in this toroidal cavity, rotate the downward crush seal pressing plate of described handwheel band ovable valve stem, the soft valve plate of lateral seal is made to start distortion under the effect of sealing clamp and the hard valve plate of radial seal, and fit tightly with described valve interior wall and formed and seal.
Further, the hard valve plate of described radial seal comprises discoid bottom and the columned lug boss formed that raises up from described bottom, described sealing clamp and the soft valve plate of lateral seal are discoid, and stacked and be enclosed within the lug boss of the hard valve plate of described radial seal.
Further, cave in formation one groove for the bottom surface of described valve rod, and the columned lug boss of the hard valve plate of described radial seal stretches in described groove, and can slide up and down in described groove.
Further, the lug boss of the hard valve plate of described radial seal is surrounded with the activity lifting key of ring, the frictional force that the lug boss that described activity lifting bond energy enough reduces the hard valve plate of radial seal produces when sliding in the groove of stem bottom, the outer wall of described stem lower portion is surrounded with the spacing steel loop of ring, described spacing steel loop can prevent valve rod from screwing out in valve body gland.
Further, described body base and the soft valve plate corresponding section of lateral seal are provided with the guide groove of a ring shape, when intake tunnel closed by the second sealing configuration, describedly under the effect of sealing clamp and the hard valve plate of radial seal, start distortion to the soft valve plate of sealing, and to prolonged expansion in described guide groove, sealing can be realized.
Further, the first sealing configuration preventing the water in valve cavity from flowing out from valve body gland is provided with between described valve rod and valve body gland, described first sealing configuration is cirque structure, the bearing comprising two O RunddichtringO and be arranged on below two O RunddichtringO, described pair of O RunddichtringO and bearing are fixed between valve rod and valve body gland by sealing cover.
Further, described bearing comprises bearing inner race, retainer and bearing outer ring, described bearing inner race is arranged on the inner ring of described retainer, and described bearing outer ring is arranged on the outer ring of described retainer, and described valve rod is successively through described pair of O RunddichtringO and bearing.
Further, described handwheel is fixed on valve stem top by handwheel set screw.
Further, the lower end outer wall of described valve rod is provided with outside thread, and the inwall of described valve body gland is provided with the internal thread matched with described outside thread.
Further, described valve seat and valve body shaping.
By technique scheme, the present invention at least has the following advantages: the second sealing configuration of the present invention and valve rod can rotate respectively or the second sealing configuration does not rotate, make the rotation of valve rod no longer by the restriction of the second sealing configuration, and then make hand wheel rotating valve rod more laborsaving, be easier to open the second sealing configuration, thus make fire extinguishing more rapidly, in time; Rotation hand wheel makes valve rod move downward, and then drives the second sealing configuration to playback downwards, thus is blocked by intake tunnel, namely closes this double-sealing fire hydrant, good sealing effect.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-sealing fire hydrant of the present invention.
In figure: 1, valve seat; 2, valve rod; 3, intake tunnel; 4, valve body; 5, water outlet mouthpiece; 6, valve cavity; 7, valve body gland; 8, sealing cover; 9, handwheel; 10, the first sealing configuration; 11, the second sealing configuration; 12, two O RunddichtringO; 13, bearing inner race; 14, retainer; 15, bearing outer ring; 16, the hard valve plate of radial seal; 17, the soft valve plate of lateral seal; 18, sealing clamp; 19, radial-thrust bearing; 20, groove; 21, movable lifting key; 22, spacing steel loop; 23, guide groove; 24, handwheel set screw.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1, a kind of double-sealing fire hydrant described in a preferred embodiment of the present invention, comprise valve seat 1, be arranged at the intake tunnel 3 on described valve seat 1, be arranged at the valve body 4 above described valve seat 1, be arranged at the valve rod 2 in described valve body 4, the side of described valve body 4 is provided with water outlet mouthpiece 5, described valve body 4 inner hollow forms valve cavity 6, this valve cavity 6 is connected with water outlet mouthpiece 5, described valve body 4 top and bottom are respectively arranged with the upper shed and under shed that are connected with described valve cavity 6, described under shed is connected with intake tunnel 3, described valve body 4 top is provided with the valve body gland 7 suitable with described upper shed, described valve body gland 7 is provided with sealing cover 8, described valve rod 2 stretches in valve cavity 6 by valve body 4, and run through sealing cover 8 valve body gland 7 successively, described valve rod 2 has the top being positioned at described valve body 4 outside and arranges with relative described top and stretch to the bottom of described valve cavity 6, described top is provided with the handwheel 9 that band ovable valve stem 2 rotates, the second sealing configuration 11 is provided with in described under shed, and described second sealing configuration can move up and down along the movement direction of valve body by relatively described under shed, described second sealing configuration 11 is connected with the lower slide of described valve rod 2, described second sealing configuration 11 comprises the hard valve plate 16 of radial seal, the soft valve plate 17 of lateral seal and sealing clamp 18, the longitudinal section of the hard valve plate 16 of described radial seal is inverted T shape, described the sealing clamp 18 and soft valve plate of lateral seal 17 is stacked is placed on the hard valve plate 16 of radial seal, described sealing clamp 18 end face is provided with toroidal cavity, the radial-thrust bearing 19 for reducing surface friction drag between described valve rod 2 and sealing clamp 18 is provided with in this toroidal cavity, rotate described handwheel 9 and be with ovable valve stem 2 crush seal pressing plate 18 downwards, the soft valve plate of lateral seal 17 is made to start distortion under the effect of sealing clamp 18 and the hard valve plate 16 of radial seal, and fit tightly with described valve body 4 inwall and formed and seal, sealing clamp 18 and valve rod 2 can rotate respectively or sealing clamp 18 does not rotate.
The hard valve plate of described radial seal 16 comprises discoid bottom and the columned lug boss formed that raises up from described bottom, described sealing clamp 18 and the soft valve plate of lateral seal 17 are discoid, and stacked and be enclosed within the lug boss of the hard valve plate 16 of described radial seal.
Cave in formation one groove 20 for the bottom surface of described valve rod 2, and the columned lug boss of the hard valve plate of described radial seal 16 stretches in described groove 20, and can slide up and down in described groove 20.The lug boss of the hard valve plate 16 of described radial seal is surrounded with the activity lifting key 21 of ring, described activity promotes the frictional force of generation when sliding in lug boss that key 21 can reduce the hard valve plate 16 of the radial seal groove 20 bottom valve rod 2, the outer wall of described valve rod 2 bottom is surrounded with the spacing steel loop 22 of ring, described spacing steel loop 22 can prevent valve rod 2 from screwing out in valve body gland 7.Inwall bottom described valve body 4 is provided with the guide groove 23 of a ring shape, when intake tunnel 3 closed by the second sealing configuration 11, describedly under the effect of sealing clamp 18 and the hard valve plate 16 of radial seal, start distortion to the soft valve plate 17 of sealing, and can to prolonged expansion in described guide groove 23.
The first sealing configuration 10 preventing the water in valve cavity 6 from flowing out from valve body gland 7 is provided with between described valve rod 2 and valve body gland 7, described first sealing configuration 10 is cirque structure, the bearing comprising two O RunddichtringO 12 and be arranged on below two O RunddichtringO 12, described pair of O RunddichtringO 12 and bearing are fixed between valve rod 2 and valve body gland 7 by sealing cover 8.Described bearing comprises bearing inner race 13, retainer 14 and bearing outer ring 15, described bearing inner race 13 is arranged on the inner ring of described retainer 14, described bearing outer ring 15 is arranged on the outer ring of described retainer 14, and described valve rod 2 is successively through described pair of O RunddichtringO 12 and bearing.Described handwheel 9 is fixed on the top of described valve rod 2 by described sealing fire hydrant by handwheel set screw 24.The lower end outer wall of described valve rod 2 is provided with outside thread, and the inwall of described valve body gland 7 is provided with the internal thread matched with described outside thread.Described valve seat 1 and valve body 4 one-body molded.
In fire extinguishing procedure, two O RunddichtringOs 12 of the first sealing configuration 10, bearing inner race 13, retainer 14 and bearing outer ring 15 not only play the effect of sealing, water is prevented to flow out from valve body gland 7, and bearing inner race 13, retainer 14 and bearing outer ring 15 also reduce the surface friction drag between valve rod 2 and valve body gland 7, such that user is easier to be spun out valve rod 2 from valve body gland 7.Equally, the lug boss of the hard valve plate 16 of radial seal around ring activity promote key 21 and radial-thrust bearing 19 can reduce the second sealing configuration 11 and the surface friction drag in valve rod 2 relative rotational motion, make the second sealing configuration 11 motion up and down become easier, namely this double-sealing fire hydrant more easily opens and closes.After fire extinguishing terminates, when the second sealing configuration 11 moves downward closedown intake tunnel 3, the edge of the soft valve plate 17 of lateral seal to prolonged expansion in guide groove 23, thus can play secondary blocking-up and the effect closing current, enhances the sealing effect of the second sealing configuration 11.
Working principle of the present invention is as follows:
When utilizing the present invention to put out a fire, first water hose is connected to water outlet mouthpiece 5, then rotation hand wheel 9, band ovable valve stem 2 rotates, and valve rod 2 is moved upward, and then drives the hard valve plate 16 of radial seal of the second sealing configuration 11 to move upward, namely this double-sealing fire hydrant is opened, then, pour in valve cavity 6 from the high-pressure water flow below the second sealing configuration 11 along intake tunnel 3, flow out for fire extinguishing from water hose through water outlet mouthpiece 5.After fire extinguishing terminates, opposite spin handwheel 9, makes valve rod 2 move downward, and then drive the second sealing configuration 11 to playback downwards, thus intake tunnel 3 is blocked, namely close this double-sealing fire hydrant, then water hose is disassembled from water outlet mouthpiece 5, namely complete whole water supply fire-fighting work.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. a double-sealing fire hydrant, comprise valve seat (1), be arranged at the intake tunnel (3) on described valve seat (1), be arranged at the valve body (4) of described valve seat (1) top, be arranged at the valve rod (2) in described valve body (4), the side of described valve body (4) is provided with water outlet mouthpiece (5), described valve body (4) inner hollow forms valve cavity (6), this valve cavity (6) is connected with water outlet mouthpiece (5), described valve body (4) top and bottom are respectively arranged with the upper shed and under shed that are connected with described valve cavity (6), described under shed is connected with intake tunnel (3), it is characterized in that: described valve body (4) top is provided with the valve body gland (7) suitable with described upper shed, described valve body gland (7) is provided with sealing cover (8), described valve rod (2) stretches in valve cavity (6) by valve body (4), and run through sealing cover (8) and valve body gland (7) successively, described valve rod (2) has the top being positioned at described valve body (4) outside and arranges with relative described top and stretch to the bottom of described valve cavity (6), described top is provided with the handwheel (9) that band ovable valve stem (2) rotates, the second sealing configuration (11) is provided with in described under shed, and described second sealing configuration can move up and down along the movement direction of valve body by relatively described under shed, described second sealing configuration (11) is connected with the lower slide of described valve rod (2), described second sealing configuration (11) comprises the hard valve plate of radial seal (16), the soft valve plate of lateral seal (17) and sealing clamp (18), described sealing clamp (18) and the soft valve plate of lateral seal (17) is stacked is placed on the hard valve plate of radial seal (16), described sealing clamp (18) end face is provided with toroidal cavity, the radial-thrust bearing (19) for reducing surface friction drag between described valve rod (2) and sealing clamp (18) is provided with in this toroidal cavity, rotate described handwheel (9) band ovable valve stem (2) crush seal pressing plate (18) downwards, the soft valve plate of lateral seal (17) is made to start distortion under the effect of sealing clamp (18) and the hard valve plate of radial seal (16), and fit tightly with described valve body (4) inwall and formed and seal.
2. double-sealing fire hydrant according to claim 1, it is characterized in that: the hard valve plate of described radial seal (16) comprises discoid bottom and is cylindric and the lug boss formed that raises up from described bottom, described sealing clamp (18) and the soft valve plate of lateral seal (17) are discoid, and stacked and be enclosed within the lug boss of the hard valve plate of described radial seal (16).
3. double-sealing fire hydrant according to claim 2, it is characterized in that: cave in formation one groove (20) for the bottom surface of described valve rod (2), the hard valve plate of described radial seal (16) columned lug boss stretches in described groove (20), and the hard valve plate of described radial seal (16) can slide up and down in described groove (20).
4. double-sealing fire hydrant according to claim 3, it is characterized in that: the lug boss of the hard valve plate of described radial seal (16) is surrounded with activity lifting key (21) of ring, the outer wall of described valve rod (2) bottom is surrounded with the spacing steel loop (22) of ring.
5. double-sealing fire hydrant according to claim 4, it is characterized in that: described valve body (4) bottom and the soft valve plate of lateral seal (17) corresponding section are provided with the guide groove (23) of a ring shape, when the second sealing configuration (11) is sealed into water channel (3), the soft valve plate of described lateral seal (17) starts distortion under the effect of sealing clamp (18) and the hard valve plate of radial seal (16), and to described guide groove (23) interior prolonged expansion.
6. double-sealing fire hydrant according to claim 1, it is characterized in that: between described valve rod (2) and valve body gland (7), be provided with the first sealing configuration (10) preventing the water in valve cavity (6) from flowing out from valve body gland (7), the bearing comprising two O RunddichtringO (12) and be arranged on below two O RunddichtringO (12), described pair of O RunddichtringO (12) and bearing are fixed between valve rod (2) and valve body gland (7) by sealing cover (8).
7. double-sealing fire hydrant according to claim 6, it is characterized in that: described bearing comprises bearing inner race (13), retainer (14) and bearing outer ring (15), described bearing inner race (13) is arranged on the inner ring of described retainer (14), described bearing outer ring (15) is arranged on the outer ring of described retainer (14), and described valve rod (2) is successively through described pair of O RunddichtringO (12) and bearing.
8. double-sealing fire hydrant according to claim 1, is characterized in that: described handwheel (9) is fixed on valve rod (2) top by handwheel set screw (24).
9. double-sealing fire hydrant according to claim 1, is characterized in that: the lower end outer wall of described valve rod (2) is provided with outside thread, and the inwall of described valve body gland (7) is provided with the internal thread matched with described outside thread.
10. double-sealing fire hydrant according to claim 1, is characterized in that: described valve seat (1) and valve body (4) one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753771.2A CN105351533B (en) | 2015-11-09 | 2015-11-09 | Double containment fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753771.2A CN105351533B (en) | 2015-11-09 | 2015-11-09 | Double containment fire hydrant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351533A true CN105351533A (en) | 2016-02-24 |
| CN105351533B CN105351533B (en) | 2018-09-07 |
Family
ID=55327564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753771.2A Active CN105351533B (en) | 2015-11-09 | 2015-11-09 | Double containment fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351533B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106924921A (en) * | 2017-04-10 | 2017-07-07 | 重庆科技学院 | Special quick open-close type fire hydrant for corridor |
| CN108867765A (en) * | 2018-07-24 | 2018-11-23 | 百安消防科技有限公司 | A kind of intelligence fire hydrant |
| CN109737224A (en) * | 2019-01-16 | 2019-05-10 | 中石化上海工程有限公司 | A kind of VOC tail gas water seal arrangement and water sealing method |
| CN116066627A (en) * | 2023-02-01 | 2023-05-05 | 江苏明江阀业有限公司 | Bellows governing valve with prevent blockking up function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492253Y (en) * | 2001-05-31 | 2002-05-22 | 姚平 | Quick fire hydrant |
| KR20020044620A (en) * | 2000-12-06 | 2002-06-19 | 박승옥 | hydrant valve |
| CN2527799Y (en) * | 2002-01-06 | 2002-12-25 | 戴纪良 | Stop valve |
| CN2682251Y (en) * | 2003-09-17 | 2005-03-02 | 吴军标 | Double-sealing piston valve |
| JP2008151333A (en) * | 2006-11-21 | 2008-07-03 | Kitaura Seisakusho:Kk | Pressure reducing valve with water stopping function |
| CN202337998U (en) * | 2011-09-06 | 2012-07-18 | 江西荣和特种消防设备制造有限公司 | Detachable pressure-regulating outdoor fire hydrant |
| CN205173497U (en) * | 2015-11-09 | 2016-04-20 | 中铁电气化局集团北京建筑工程有限公司 | Double containment fire hydrant |
-
2015
- 2015-11-09 CN CN201510753771.2A patent/CN105351533B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020044620A (en) * | 2000-12-06 | 2002-06-19 | 박승옥 | hydrant valve |
| CN2492253Y (en) * | 2001-05-31 | 2002-05-22 | 姚平 | Quick fire hydrant |
| CN2527799Y (en) * | 2002-01-06 | 2002-12-25 | 戴纪良 | Stop valve |
| CN2682251Y (en) * | 2003-09-17 | 2005-03-02 | 吴军标 | Double-sealing piston valve |
| JP2008151333A (en) * | 2006-11-21 | 2008-07-03 | Kitaura Seisakusho:Kk | Pressure reducing valve with water stopping function |
| CN202337998U (en) * | 2011-09-06 | 2012-07-18 | 江西荣和特种消防设备制造有限公司 | Detachable pressure-regulating outdoor fire hydrant |
| CN205173497U (en) * | 2015-11-09 | 2016-04-20 | 中铁电气化局集团北京建筑工程有限公司 | Double containment fire hydrant |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106924921A (en) * | 2017-04-10 | 2017-07-07 | 重庆科技学院 | Special quick open-close type fire hydrant for corridor |
| CN106924921B (en) * | 2017-04-10 | 2022-05-13 | 重庆科技学院 | Special quick open-close type fire hydrant for corridor |
| CN108867765A (en) * | 2018-07-24 | 2018-11-23 | 百安消防科技有限公司 | A kind of intelligence fire hydrant |
| CN109737224A (en) * | 2019-01-16 | 2019-05-10 | 中石化上海工程有限公司 | A kind of VOC tail gas water seal arrangement and water sealing method |
| CN109737224B (en) * | 2019-01-16 | 2019-11-29 | 中石化上海工程有限公司 | A kind of VOC tail gas water seal arrangement and water sealing method |
| CN116066627A (en) * | 2023-02-01 | 2023-05-05 | 江苏明江阀业有限公司 | Bellows governing valve with prevent blockking up function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105351533B (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105351533A (en) | Double-seal fire hydrant | |
| CN202302083U (en) | Hydraulic three-way stop valve | |
| CN202252161U (en) | Novel check valve | |
| CN205173497U (en) | Double containment fire hydrant | |
| CN206280510U (en) | A kind of flap can leave the stop valve of runner | |
| CN204114254U (en) | self-closing stop valve | |
| CN206555459U (en) | A kind of dark bar seal gate valve of rocker-type | |
| CN205745354U (en) | Detachable water conservancy control valve capable of being recycled | |
| CN203628011U (en) | Out-leakage-preventing self-sealing valve | |
| CN109139938A (en) | A kind of shut-off valve | |
| CN201496609U (en) | Pilot-operated type hard-seal fixed ball valve | |
| CN106763817A (en) | A kind of dark bar seal gate valve of rocker-type | |
| CN107859754A (en) | Plug valve | |
| CN204004491U (en) | A kind of back seal dark rod flat plate gate valve of online replacing filler | |
| CN202132556U (en) | Ball valve with non-return function | |
| CN203641552U (en) | Three-height air flow stop valve | |
| CN206554033U (en) | Novel water conservancy gate | |
| CN202790593U (en) | High temperature balanced type stop valve | |
| CN206190922U (en) | Go up and down to open and close formula hydrant | |
| CN106439090A (en) | Flange type manual ball valve | |
| CN207454841U (en) | The check-valves of dual regulation | |
| CN207122646U (en) | A kind of three-flat ball valve | |
| CN203823103U (en) | Novel parallel gate valve | |
| CN205978539U (en) | Exquisite type non -rising -stem gate valve | |
| CN205013724U (en) | A novel plate valve for blowdown pipeline is terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |