CN105484323A - Protecting cover for outdoor fire hydrant - Google Patents
Protecting cover for outdoor fire hydrant Download PDFInfo
- Publication number
- CN105484323A CN105484323A CN201510804424.8A CN201510804424A CN105484323A CN 105484323 A CN105484323 A CN 105484323A CN 201510804424 A CN201510804424 A CN 201510804424A CN 105484323 A CN105484323 A CN 105484323A
- Authority
- CN
- China
- Prior art keywords
- cover
- fire hydrant
- alarm
- outdoor fire
- outer cover
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/04—Column hydrants
- E03B9/06—Covers
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a protecting cover for an outdoor fire hydrant. The protecting cover comprises a positioning component and an outer cover. The positioning component comprises an arc-shaped positioning seat and an annular guide rail arranged on the inner side of the arc-shaped positioning seat. The outer cover includes a fixed outer cover fixed on the arc-shaped positioning seat and a movable outer cover arranged on the annular guide rail. Rollers are arranged at the bottom of the movable outer cover and matched with the annular guide rail. The rollers can drive the movable outer cover to move along the annular guide rail. The fixed outer cover is matched with the movable outer cover. The top ends of the fixed outer cover and the movable outer cover are in pivot connection. The protecting cover for the outdoor fire hydrant has the advantages that the fire hydrant is effectively protected, and the protecting cover has good thermal insulation performance by the aid of a thermal-insulating plate; meanwhile, the protecting cover has an alarm function which can be in linkage with other firefighting means, and firefighting efficiency is increased; in addition, the protecting cover is good in night use effect and worthy of popularization.
Description
Technical field
The present invention relates to a kind of Outdoor Fire Hydrant protective cover, be applicable to the protection of fire plug under outdoor outdoor occasion by it, belong to fire fighting device field.
Background technology
As everyone knows, fire protection pipeline is the important component part of modern urban construction planning, and in daily life, we also can find that fire plug is dispersed throughout the every nook and cranny in city.Due to the special role of fire plug, therefore, fire plug generally all needs to be arranged in the public communal space such as corridor or the hall, if Outdoor Fire Hydrant, then should be arranged on the remarkable position of road both sides.
Generally all be arranged on road both sides just because of Outdoor Fire Hydrant, therefore car owner driving or stop process in, be easy to that automobile and fire plug are produced and rub or collide.Once there is above-mentioned situation, not only can cause damage to automobile, also may cause the damage of fire plug, leak, the phenomenon such as splash.
In addition, the common Outdoor Fire Hydrant of major part is all directly be exposed to outdoor, may add protection fence around a small amount of Outdoor Fire Hydrant.But in some areas of China, under the severe weather conditions in the particularly north, fire plug may by bursting by freezing, and then cause and to metal run out or water channel freezes to put the phenomenons such as not water outlet.
In addition, current most Outdoor Fire Hydrant all lacks warning at night mark, when breaking out of fire at night needs not easily to find rapidly when using fire plug, this may cause user or fire fighter to delay best fire extinguishing opportunity, causes great economic asset loss.
CN202913457U discloses a kind of fire fighting device, specifically a kind of Multifunctional hydrant protective cover, it is characterized in that being provided with square framework type base, left cover body, right cover body, left cover body lower end is connected with the left frame of base through hinge, right cover body is connected with the right frame that connects of base through hinge, left cover body or right cover body upper end cover are provided with unlatching pin-and-hole, the equilateral pin of heavy straight shape five is provided with in left cover body or right cover body end cap, pin is located in left cover body or right cover body end cap through bearing, pin axis and the dead in line of opening pin-and-hole, pin is provided with hook, be provided with in right cover body or left cover body end cap and link up with reference column in mating connection, reference column is connected with right cover body or left cover body end cap inwall through pole.
This invention have employed a kind of body structure and serves certain protective effect to Outdoor Fire Hydrant, but in the process used, it still exists many defects.One, what adopt due to it is body structure, and therefore its open operation is not easy, affects fire plug possibly use because user does not know how to open.Its two, this invention only merely protects Outdoor Fire Hydrant, acts on very single, ignores the use to other means of fire in fire-fighting process, lack fire-fighting link, substantial help is not had to the fire extinguishing procedure of user.
Summary of the invention
In view of prior art exists above-mentioned defect, the object of the invention is to propose a kind of Outdoor Fire Hydrant protective cover be applicable under outdoor outdoor occasion.
Object of the present invention, will be achieved by the following technical programs:
A kind of Outdoor Fire Hydrant protective cover, comprises the positioning component being arranged at position, border bottom Outdoor Fire Hydrant, and is arranged at the outer cover on described positioning component; Described positioning component comprises arc positioning seat and is arranged at the ring-shaped guide rail inside described arc positioning seat;
Described outer cover comprises the stationary housings be fixedly installed on described arc positioning seat and the Moveable cover be arranged at movably on described ring-shaped guide rail, the bottom of described Moveable cover is provided with roller, described roller matches with described ring-shaped guide rail, under the drive of described roller, described Moveable cover can move along described ring-shaped guide rail; Described stationary housings and described Moveable cover match, and the top of the two is pivotally connected.
Preferably, also comprise and be fixedly installed on the solar panel of described outer cover top for generating electricity, and to be electrically connected with described solar panel and battery for powering to electric component in device, and being fixedly installed on the button of described outer cover top for electric component in starting drive, described button comprises startup button and alarm key; Described battery is fixedly installed on inside described Moveable cover, and all corresponding with in the device each electric component of described battery and described button is electrically connected.
Preferably, the acrylic outer cover for the protection of parts is provided with outside described solar panel and described button.
Preferably, the size of described stationary housings is greater than the size of described Moveable cover, and described Moveable cover can carry out rotating around the pivot on its top and be accommodated in described stationary housings under the drive of described roller.
Preferably, the bottom of described Moveable cover is provided with drive motors, described roller is fixedly connected with the output shaft of drive motors and is driven by it, and described drive motors and described battery are electrically connected and are powered by it, and described drive motors and described startup button are electrically connected and are controlled by it.
Preferably, the top, inner side of described Moveable cover is also fixedly installed alarm assemblies, described alarm assemblies comprises the audible-visual annunciator for sending audible and visible alarm, and for the communication alarm of fire alarm, described alarm assemblies and described battery are electrically connected and are powered by it, and described alarm assemblies and described alarm key are electrically connected and are controlled by it;
Described communication alarm is connected with fire alarm network signal, is provided with the positioning unit for recording position of hydrant information in described communication alarm.
Preferably, the marginal position place on described stationary housings top is also fixedly installed for preventing rainwater from entering rubber waterproof bar between described stationary housings and described Moveable cover in gap.
Preferably, the outside of described stationary housings is also provided with the bright LED of length for night illumination, warning, and the bright LED of described length and described battery are electrically connected and are powered by it.
Preferably, the outer application of described Moveable cover has the certainly aobvious coating for warning at night, and described certainly aobvious coating includes but not limited to fluorescent coating or 3M coating.
Preferably, the foamed glass insulation board for bradyseism, insulation is all coated with inside described stationary housings and described Moveable cover.
The present invention gives prominence to effect: the present invention protects the fire plug of its inside effectively with a kind of cylindrical-shaped structure, and adding of foamed glass insulation board makes the present invention possess good insulation, the performance of damping, thus protects fire plug further.The present invention also creatively adds warning function, achieves the interlock with other means of fire in fire-fighting process, improves the efficiency of fire extinguishing procedure.Meanwhile, the power resources in the present invention provide by solar panel, not only extend application life of the present invention, also embody the technical characteristic of green, environmental protection simultaneously.In addition, in the present invention, long bright LED and the utilization from aobvious coating also make night of the present invention result of use increase substantially, and further enhancing practicality of the present invention and the scope of application, and make it to be provided with very high popularization and using value.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation under closed condition of the present invention.
Fig. 2 is the structural representation under opening of the present invention.
11, stationary housings 12, Moveable cover 13, rubber waterproof bar 14, foamed glass insulation board 2, ring-shaped guide rail 3, long bright LED 4, solar panel 5, certainly aobvious coating 61, startup button 62, alarm key 7, drive motors.
Detailed description of the invention
Present invention is disclosed a kind of Outdoor Fire Hydrant protective cover be applicable under outdoor outdoor occasion.As shown in Fig. 1 ~ Fig. 2, a kind of Outdoor Fire Hydrant protective cover, comprises the positioning component being arranged at position, border bottom Outdoor Fire Hydrant, and is arranged at the outer cover on described positioning component.Described positioning component comprises arc positioning seat and is arranged at the ring-shaped guide rail 2 inside described arc positioning seat.
Described outer cover comprises the stationary housings 11 be fixedly installed on described arc positioning seat and the Moveable cover 12 be arranged at movably on described ring-shaped guide rail 2, the bottom of described Moveable cover 12 is provided with roller, described roller matches with described ring-shaped guide rail 2, under the drive of described roller, described Moveable cover 12 can move along described ring-shaped guide rail 2; Described stationary housings 11 matches with described Moveable cover 12, and the top of the two is pivotally connected.
The size of described stationary housings 11 is greater than the size of described Moveable cover 12, and described Moveable cover 12 can carry out rotating around the pivot on its top and be accommodated in described stationary housings 11 under the drive of described roller.Described stationary housings 11 and described Moveable cover 12 present an approximate cylindrical shape in the assembled state, and when described Moveable cover 12 is accommodated in described stationary housings 11, the global shape of protective cover is similar to a cylinder be cut from top.
Outdoor Fire Hydrant protective cover of the present invention also comprises and is fixedly installed on the solar panel 4 of described outer cover top for generating electricity; and to be electrically connected with described solar panel 4 and battery for powering to electric component in device; and being fixedly installed on described outer cover top, button for electric component in starting drive, described button comprises and starts button 61 and alarm key 62.In use, described solar panel 4 can be continuously described charge in batteries, so that described battery is powered night.
Described startup button 61 is mainly used in the running driving each electric component in the present invention, described warning case 62 alarm assemblies be mainly used in starting drive.The object that described startup button 61 and described alarm key 62 are provided separately is to increase operability of the present invention; because when regular maintenance; whether attendant needs to open protective cover intact to detect inner fire plug; so now only need to trigger described startup button 61; if and described startup button 61 and described alarm key 62 are become one, probably will cause false alarm in the process of so opening at protective cover.Certainly, described startup button 61 also according to the use needs of reality, can be integrated with described alarm key 62, increases or delete corresponding button by operator.
Described battery is fixedly installed on top inside described Moveable cover 12, and all corresponding with in the device each electric component of described battery and described button is electrically connected.Described battery is fixedly installed on inside described Moveable cover 12 herein; consider under the state of protective cover unlatching; described Moveable cover 12 needs to be accommodated in described stationary housings 11; therefore; need to arrange any parts in protective cover of the present invention all should be arranged at inside described Moveable cover 12, in order to avoid affect the unlatching of protective cover.It is also for these reasons that other electric components in the present invention are all arranged in described Moveable cover 12.
The acrylic outer cover for the protection of parts is provided with outside described solar panel 4 and described button.In the operating process of reality, described acrylic outer cover can be arranged to detachable or turnover structure, not interrupted to ensure in the operating process of user to button.
The bottom of described Moveable cover 12 is provided with drive motors 7, described roller is fixedly connected with the output shaft of drive motors 7 and is driven by it, described drive motors 7 is electrically connected with described battery and is powered by it, and described drive motors 7 is electrically connected with described startup button 61 and is controlled by it.
The top, inner side of described Moveable cover 12 is also fixedly installed alarm assemblies, described alarm assemblies comprises the audible-visual annunciator for sending audible and visible alarm, and for the communication alarm of fire alarm, described alarm assemblies and described battery are electrically connected and are powered by it, and described alarm assemblies and described alarm key 62 are electrically connected and are controlled by it.
Described communication alarm is connected with fire alarm network signal, and is provided with the positioning unit for recording position of hydrant information in described communication alarm.
The marginal position place on described stationary housings 11 top is also fixedly installed for preventing rainwater from entering rubber waterproof bar 13 between described stationary housings 11 and described Moveable cover 12 in gap.Described rubber waterproof bar 13 is preferably butyl material, and this material has the resistance to ozone of good weatherability and excellence, heat-proof aging and resistance to acids and bases.
The outside of described stationary housings 11 is also provided with the bright LED 3 of length for night illumination, warning, and the bright LED of described length 3 and described battery are electrically connected and are powered by it.Described battery is to described length bright LED 3 continued power, bright to ensure its length.The color of described LED 3 is preferably red.
The outer application of described Moveable cover 12 has the certainly aobvious coating 5 for warning at night, and described certainly aobvious coating 5 includes but not limited to fluorescent coating or 3M coating.
The foamed glass insulation board 14 for bradyseism, insulation is all coated with inside described stationary housings 11 and described Moveable cover 12.
Below sketch the course of work of the present invention: when fire occurs, operator directly can open described acrylic protective cover, pushes button immediately.After described startup button 61 is triggered, described drive motors 7 comes into operation, and under the rotation of described roller, described Moveable cover 12 moves to be opened, and is finally accommodated in inside described stationary housings 11, thus exposes the fire plug of protective cover inside.After described alarm key 62 is set out, described audible-visual annunciator can send audible and visible alarm immediately, and to point out evacuating personnel, described communication alarm then can be reported to the police to fire alarm network immediately, and supply positional information, so that the timely rescue of fire alarm according to the positioning unit Quick of its inside.
The present invention protects the fire plug of its inside effectively with a kind of cylindrical-shaped structure, and adding of foamed glass insulation board makes the present invention possess good insulation, the performance of damping, thus protects fire plug further.The present invention also creatively adds warning function, achieves the interlock with other means of fire in fire-fighting process, improves the efficiency of fire extinguishing procedure.Meanwhile, the power resources in the present invention provide by solar panel, not only extend application life of the present invention, also embody the technical characteristic of green, environmental protection simultaneously.In addition, in the present invention, long bright LED and the utilization from aobvious coating also make night of the present invention result of use increase substantially, and further enhancing practicality of the present invention and the scope of application, and make it to be provided with very high popularization and using value.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (10)
1. an Outdoor Fire Hydrant protective cover, is characterized in that: comprise the positioning component being arranged at position, border bottom Outdoor Fire Hydrant, and is arranged at the outer cover on described positioning component;
Described positioning component comprises arc positioning seat and is arranged at the ring-shaped guide rail (2) inside described arc positioning seat;
Described outer cover comprises the stationary housings (11) be fixedly installed on described arc positioning seat and the Moveable cover (12) be arranged at movably on described ring-shaped guide rail (2), the bottom of described Moveable cover (12) is provided with roller, described roller matches with described ring-shaped guide rail (2), under the drive of described roller, described Moveable cover (12) can be mobile along described ring-shaped guide rail (2); Described stationary housings (11) and described Moveable cover (12) match, and the top of the two is pivotally connected.
2. Outdoor Fire Hydrant protective cover according to claim 1, it is characterized in that: also comprise and be fixedly installed on the solar panel (4) of described outer cover top for generating electricity, and to be electrically connected with described solar panel (4) and battery for powering to electric component in device, and being fixedly installed on the button of described outer cover top for electric component in starting drive, described button comprises startup button (61) and alarm key (62); Described battery is fixedly installed on described Moveable cover (12) inner side, and all corresponding with in the device each electric component of described battery and described button is electrically connected.
3. Outdoor Fire Hydrant protective cover according to claim 2, is characterized in that: be provided with the acrylic outer cover for the protection of parts outside described solar panel (4) and described button.
4. Outdoor Fire Hydrant protective cover according to claim 1; it is characterized in that: the size of described stationary housings (11) is greater than the size of described Moveable cover (12), described Moveable cover (12) can carry out rotating around the pivot on its top and be accommodated in described stationary housings (11) under the drive of described roller.
5. Outdoor Fire Hydrant protective cover according to claim 2; it is characterized in that: the bottom of described Moveable cover (12) is provided with drive motors (7); described roller is fixedly connected with the output shaft of drive motors (7) and is driven by it; described drive motors (7) and described battery are electrically connected and are powered by it, and described drive motors (7) and described startup button (61) are electrically connected and are controlled by it.
6. Outdoor Fire Hydrant protective cover according to claim 2, it is characterized in that: the top, inner side of described Moveable cover (12) is also fixedly installed alarm assemblies, described alarm assemblies comprises the audible-visual annunciator for sending audible and visible alarm, and for the communication alarm of fire alarm, described alarm assemblies and described battery are electrically connected and are powered by it, and described alarm assemblies and described alarm key (62) are electrically connected and are controlled by it;
Described communication alarm is connected with fire alarm network signal, is provided with the positioning unit for recording position of hydrant information in described communication alarm.
7. Outdoor Fire Hydrant protective cover according to claim 1, is characterized in that: the marginal position place on described stationary housings (11) top is also fixedly installed for preventing rainwater from entering rubber waterproof bar (13) between described stationary housings (11) and described Moveable cover (12) in gap.
8. Outdoor Fire Hydrant protective cover according to claim 2; it is characterized in that: the outside of described stationary housings (11) is also provided with the bright LED of length (3) for night illumination, warning, the bright LED of described length (3) and described battery are electrically connected and are powered by it.
9. Outdoor Fire Hydrant protective cover according to claim 1, is characterized in that: the outer application of described Moveable cover (12) has the certainly aobvious coating (5) for warning at night, and described certainly aobvious coating (5) includes but not limited to fluorescent coating or 3M coating.
10. Outdoor Fire Hydrant protective cover according to claim 1, is characterized in that: described stationary housings (11) and described Moveable cover (12) inner side are all coated with the foamed glass insulation board (14) for bradyseism, insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804424.8A CN105484323B (en) | 2015-11-20 | 2015-11-20 | Outdoor fire hydrant protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804424.8A CN105484323B (en) | 2015-11-20 | 2015-11-20 | Outdoor fire hydrant protective cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105484323A true CN105484323A (en) | 2016-04-13 |
| CN105484323B CN105484323B (en) | 2017-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510804424.8A Active CN105484323B (en) | 2015-11-20 | 2015-11-20 | Outdoor fire hydrant protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105484323B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575976A (en) * | 2018-04-25 | 2018-09-28 | 黄山力神日用品有限公司 | Mosquito liquid protection shell |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020175245A1 (en) * | 2001-10-26 | 2002-11-28 | David Sheremeta | Rotating cockpit door |
| CN202913457U (en) * | 2012-11-29 | 2013-05-01 | 陈湘华 | Multifunctional fire hydrant protective sleeve |
| CN103153785A (en) * | 2010-10-08 | 2013-06-12 | 空中客车运营简化股份公司 | Secure airlock for the cockpit of an aircraft, and aircraft having such an airlock |
| CN103790211A (en) * | 2014-03-06 | 2014-05-14 | 刘荣山 | Novel fire hydrant water outlet cover and use method thereof |
| CN103835336A (en) * | 2012-11-27 | 2014-06-04 | 深圳市海洋王照明工程有限公司 | Fire hydrant and alarming lamp thereof |
| CN204098138U (en) * | 2014-09-24 | 2015-01-14 | 洪参桂 | A kind of vertical protection fire plug |
| CN205171595U (en) * | 2015-11-20 | 2016-04-20 | 德胜（苏州）洋楼有限公司 | Outdoor fire hydrant ties safety cover |
-
2015
- 2015-11-20 CN CN201510804424.8A patent/CN105484323B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020175245A1 (en) * | 2001-10-26 | 2002-11-28 | David Sheremeta | Rotating cockpit door |
| CN103153785A (en) * | 2010-10-08 | 2013-06-12 | 空中客车运营简化股份公司 | Secure airlock for the cockpit of an aircraft, and aircraft having such an airlock |
| CN103835336A (en) * | 2012-11-27 | 2014-06-04 | 深圳市海洋王照明工程有限公司 | Fire hydrant and alarming lamp thereof |
| CN202913457U (en) * | 2012-11-29 | 2013-05-01 | 陈湘华 | Multifunctional fire hydrant protective sleeve |
| CN103790211A (en) * | 2014-03-06 | 2014-05-14 | 刘荣山 | Novel fire hydrant water outlet cover and use method thereof |
| CN204098138U (en) * | 2014-09-24 | 2015-01-14 | 洪参桂 | A kind of vertical protection fire plug |
| CN205171595U (en) * | 2015-11-20 | 2016-04-20 | 德胜（苏州）洋楼有限公司 | Outdoor fire hydrant ties safety cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575976A (en) * | 2018-04-25 | 2018-09-28 | 黄山力神日用品有限公司 | Mosquito liquid protection shell |
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| Publication number | Publication date |
|---|---|
| CN105484323B (en) | 2017-11-28 |
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