CN201817857U - Dual-seal fire hydrant - Google Patents
Dual-seal fire hydrant Download PDFInfo
- Publication number
- CN201817857U CN201817857U CN 201020166573 CN201020166573U CN201817857U CN 201817857 U CN201817857 U CN 201817857U CN 201020166573 CN201020166573 CN 201020166573 CN 201020166573 U CN201020166573 U CN 201020166573U CN 201817857 U CN201817857 U CN 201817857U
- Authority
- CN
- China
- Prior art keywords
- spool
- key
- nut
- valve rod
- fire plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a dual-seal fire hydrant, which belongs to the field of a fire hydrant and aims to achieve good sealing effect through matching of a valve core, a valve stem, a positioning ring and a trapezoidal nut in a hydrant body. The dual-seal fire hydrant comprises the hydrant body, a water outlet interface, the valve core and the valve stem, the valve stem is long enough to extend out of a cavity of the valve core, a water inlet channel and a water outlet channel communicated mutually are arranged in the hydrant body, and the outer surface of the valve core and the inner surface of the water inlet channel of the hydrant body are matched through liquid sealing; a square nut is embedded in a square through hole of the valve core and is driven by trapezoidal threads on the valve stem to move up and down in the water inlet channel of the hydrant body; and the dual-seal fire hydrant also comprises a water stop port and the positioning ring, the water stop port is provided with a groove, the positioning ring can prevent the valve stem from moving up and down, but the valve stem can rotate, and the positioning ring and the water stop port are fixedly pressed on the hydrant body through a fixing nut on the upper part of the water stop port.
Description
Technical field
The utility model relates to a kind of double containment fire plug, belongs to the fire plug field.
Background technology
Along with the constantly perfect progressively raising of realizing with fire-fighting of China's economic construction, the quality of fire fighting device performance progressively causes concern.Fire plug is used for to fire fighting truck water supply or directly connects with water band, hydraulic giant putting out a fire as a kind of outdoor ground fire fighting supply facility, is the special facilities of outdoor indispensable fire fighting supply.Fire plug is that the less area in the fire-fighting equipment of a kind of city indispensability, especially urban district and river course more need be installed, to guarantee the needs of fire fighting supply.Have ready conditions and all should install in densely populated areas such as each factory, ore deposit, warehouse, sign indicating number, goods yard, high buildings and large mansions, public place.
China's utility application number discloses a kind of outdoor safety fire hydrant for 200620049533.x.This outdoor safety fire hydrant comprises into water bend pipe, valve rod, bolt valve and bolt body, and bolt body and following bolt body two parts on the bolt valve with the upper part with the bolt status is are connected by a circle consumable accessory between last bolt body and following bolt body; The valve rod link that is connected with the bolt valve is a polygonal cross-section, and the corresponding position with the valve rod link on the bolt valve is provided with the groove that matches with the valve rod link, and valve rod link and groove are pegged graft.Sealing under this outdoor safety fire hydrant structure is paid attention in off position, and the leakage when opening use gets the brush-off, because the Outdoor Fire Hydrant water supply volume is bigger, hydraulic pressure is had relatively high expectations, sealing is very easily revealed between each motion parts part of key, not only waste the water source, more important is to have reduced hydraulic pressure, has influenced capacity of water supply.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of double containment fire plug, in key
Cooperatively interacting of spool, valve rod, locating ring and trapezoidal nut reaches good sealing effectiveness.
The realization the technical solution of the utility model is as follows:
A kind of double containment fire plug, comprise key, water outlet interface, spool and valve rod, be provided with cavity in the described spool, described valve rod is arranged in the cavity of spool, the length of described valve rod makes it can stretch out the cavity of described spool, have the intake tunnel and the exhalant canal that are interconnected in the described key, described exhalant canal one end is connected with water pipe, the other end of exhalant canal is a T-slot, the installation passage of described spool and the intake tunnel of described key are positioned on the straight line substantially, and the inner surface liquid sealing of the external surface of described spool and the intake tunnel of key cooperates; Wherein, described spool middle part is provided with the square tube hole, embeds square nut in the square tube hole of described spool, and described square nut is connected with valve handle activity, takes square nut to by the trapezoidal thread on the valve rod and moves up and down in the intake tunnel of key; This double containment fire plug also comprises the sealing mouth of being with groove, and can make described valve rod not move up and down, the locating ring that can only rotate, described sealing mouth is positioned on the T-slot of intake tunnel, described locating ring is arranged in the groove on sealing mouth top, the bottom of described sealing mouth is a spool, and the hold-down nut by sealing mouth top is fixed and clamped locating ring and sealing mouth on key.
A kind of double containment fire plug described in the utility model, wherein, described valve core cavity is that ductile iron material is made, the outside of described spool is the software encapsulate.
A kind of double containment fire plug described in the utility model, wherein, described square nut is square brass trapezoidal nut.
A kind of double containment fire plug described in the utility model, wherein, the stopping screw on the sidewall of described key is fixedlyed connected with hold-down nut.
A kind of double containment fire plug described in the utility model, wherein, described spool is two taper shape, the intermediate cylindrical structure.
A kind of double containment fire plug described in the utility model, wherein, described locating ring is made up of two identical semicircular ring.
Beneficial effect described in the utility model is:
1. by the cooperatively interacting of spool, valve rod, locating ring and trapezoidal nut in the key, spool has played good sealing effectiveness to the opening and closing state of fire plug.Especially in opening, good sealing function has been played in sealing mouth and spool upper surface when guaranteeing hydraulic pressure.
2. adopt the sealing of direct press type cone, the sealing safety and reliability.
3. the design of stopping screw, fastening nut and key prevent that hydraulic pressure is excessive and cause nut loosening to bring potential safety hazard.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the front view of a kind of double containment fire plug described in the utility model;
Fig. 2 is the right view of a kind of double containment fire plug described in the utility model;
Fig. 3 is the vertical view of a kind of double containment fire plug described in the utility model.
Among the figure: 1, water outlet interface; 2, bolt; 3, key; 4, hold-down nut; 5, sealing ring; 6, locating ring; 7, sealing mouth; 8, square nut; 9, stopping screw; 10, spool; 11, valve rod; 12, sealing mat; 13, exhalant canal; 14, intake tunnel; 15 square tube holes.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
As shown in Figure 1, 2, 3, a kind of double containment fire plug, comprise key 3, water outlet interface 1, spool 10 and valve rod 11, be provided with cavity in the described spool 10, described valve rod 11 is arranged in the cavity of spool 10, the length of valve rod 11 makes it can stretch out the cavity of spool 10, have the intake tunnel 14 and the exhalant canal 13 that are interconnected in the key 3, the exhalant canal lower end is connected with water pipe, the upper end of exhalant canal is a T-slot, the exhalant canal 13 of water outlet interface 1 and key is fixed on the key 3 by bolt 2, sealing mat 12 between bolt 2 and the key 3.The installation passage of spool 10 and the intake tunnel 14 of key 3 are positioned on the straight line substantially, and the inner surface liquid sealing of the intake tunnel of the external surface of spool 10 and key 3 cooperates.There is a square tube hole 15 at spool 10 middle parts, embed square nut 8 in the square tube hole 15 of spool 10, and square nut 8 is connected with valve rod 11, and the trapezoidal thread drive square nut 8 by valve rod 11 moves up and down in the intake tunnel 14 of key 3; This double containment fire plug also comprises the sealing mouth 7 of being with groove and can make valve rod 11 not move up and down, the locating ring 6 that can only rotate, locating ring 6 is arranged in the groove on sealing mouth 7 tops, the bottom of sealing mouth is a spool 10, and the hold-down nut 4 by sealing mouth 7 tops is fixed and clamped locating ring 6 and sealing mouth on key 3.
Spool 10 inner chambers are that ductile iron material is made, and the outside of spool 10 is the software encapsulate.Square nut 8 is square brass trapezoidal nut.Spool 10 is two taper shape, the intermediate cylindrical structure.Locating ring 6 is made up of two identical semicircular ring.Stopping screw 9 on key 3 sidewalls is fixing with hold-down nut 4, when fire plug is opened, because water supply volume is big, hydraulic pressure is big especially, impact to each component of fire plug is big, and is well that hold-down nut 4 is fixing by stopping screw 9, makes that like this each component are more stable.
When opening fire plug, turn trapezoidal thread valve rod 11, valve rod 11 ring 6 location that are positioned can not move up and down, and can only rotate.Move upward by the trapezoidal thread side of drive trapezoidal nut 8, square nut 8 drives spool 10 and moves upward, behind spool 10 complete openings, continue to screw valve rod 11, the upper surface of square nut 8 and spool 10 compresses, and spool 10 upper surfaces and sealing mouth 7 compress, and produces excellent sealing.Reverse turn valve rod 11 when closing fire plug, the trapezoidal thread side of drive trapezoidal nut 8 moves downward, and square trapezoidal nut 8 drives spool 10 and moves downward, and the lower surface of spool 10 contacts with water inlet, compresses sealing.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. double containment fire plug, comprise key (3), water outlet interface (1), spool (10) and valve rod (11), described spool is provided with cavity in (10), described valve rod (11) is arranged in the cavity of spool (10), the length of described valve rod (11) makes it can stretch out the cavity of described spool (10), have the intake tunnel (14) and the exhalant canal (13) that are interconnected in the described key (3), described exhalant canal (13) one ends are connected with water pipe, the other end of exhalant canal (13) is a T-slot, the intake tunnel (14) of the installation passage of described spool (10) and described key (3) is positioned on the straight line substantially, and the inner surface liquid sealing of the intake tunnel of the external surface of described spool (10) and key (3) cooperates; It is characterized in that: described spool (10) middle part is provided with square tube hole (15), embed square nut (8) in the square tube hole (15) of described spool (10), described square nut (8) and valve rod (11) flexibly connect, and described valve rod (11) can drive square nut (8) makes spool (10) move up and down in the intake tunnel (14) of key (3); This double containment fire plug also comprises the sealing mouth (7) of being with groove, and can make described valve rod (11) not move up and down, the locating ring that can only rotate (6), described sealing mouth (7) is positioned on the T-slot of intake tunnel (14), described locating ring (6) is arranged in the groove on sealing mouth (7) top, the bottom of described sealing mouth is spool (10), and the hold-down nut (4) by sealing mouth (7) top is fixed on locating ring (6) and sealing mouth on the key (3).
2. a kind of double containment fire plug according to claim 1 is characterized in that: described spool (10) is two taper shape, the intermediate cylindrical structure.
3. a kind of double containment fire plug according to claim 1 and 2 is characterized in that: described spool (10) inner chamber is that ductile iron material is made, and the outside of described spool (10) is the software encapsulate.
4. a kind of double containment fire plug according to claim 1 is characterized in that: described square nut (8) is square brass trapezoidal nut.
5. a kind of double containment fire plug according to claim 1 is characterized in that: the stopping screw (9) on the sidewall of described key (3) is fixedlyed connected with hold-down nut (4).
6. a kind of double containment fire plug according to claim 1 is characterized in that: described locating ring (6) is made up of two identical semicircular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020166573 CN201817857U (en) | 2010-04-20 | 2010-04-20 | Dual-seal fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020166573 CN201817857U (en) | 2010-04-20 | 2010-04-20 | Dual-seal fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817857U true CN201817857U (en) | 2011-05-04 |
Family
ID=43915820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020166573 Expired - Fee Related CN201817857U (en) | 2010-04-20 | 2010-04-20 | Dual-seal fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972367A (en) * | 2013-02-04 | 2014-08-06 | 美中全照光电股份有限公司 | LED device |
| CN107178122A (en) * | 2017-07-21 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | A kind of fire hydrant |
-
2010
- 2010-04-20 CN CN 201020166573 patent/CN201817857U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972367A (en) * | 2013-02-04 | 2014-08-06 | 美中全照光电股份有限公司 | LED device |
| CN107178122A (en) * | 2017-07-21 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | A kind of fire hydrant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20140420 |