CN201320360Y - Fire-fighting vehicle and water diversion system thereof - Google Patents
Fire-fighting vehicle and water diversion system thereof Download PDFInfo
- Publication number
- CN201320360Y CN201320360Y CNU2008201764099U CN200820176409U CN201320360Y CN 201320360 Y CN201320360 Y CN 201320360Y CN U2008201764099 U CNU2008201764099 U CN U2008201764099U CN 200820176409 U CN200820176409 U CN 200820176409U CN 201320360 Y CN201320360 Y CN 201320360Y
- Authority
- CN
- China
- Prior art keywords
- vacuum meter
- fire
- fighting vehicle
- aqueduct
- diversion system
- 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 - Lifetime
Links
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a water diversion system of fire-fighting vehicle, which comprises a water diversion pipe and a vacuum meter for measuring the vacuum degree of the water diversion pipe, wherein an automatic protecting device is arranged between the vacuum meter and the water diversion pipe, when positive pressure water is filled into the water diversion pipe, the automatic protecting device seals a connecting channel between the water diversion pipe and the vacuum meter. Since the vacuum meter and the positive pressure water are separated when positive pressure water is filled into the water diversion pipe, thereby the vacuum meter can not be damaged easily even without positive pressure measuring range, which is beneficial for prolonging the service life and lowering the using cost of the fire-fighting vehicle, furthermore, since the positive pressure measuring range does not need arranging in the vacuum meter, the precision of negative pressure measuring range can be prominently improved clearly, and thereby the vacuum meter can work reliably.
Description
Technical field
The utility model relates to the fire-fighting vehicle technical field, particularly relates to a kind of diversion system of fire-fighting vehicle.In addition, the utility model also relates to a kind of fire-fighting vehicle that comprises above-mentioned diversion system.
Background technology
At present, the effect brought into play in the rescue and relief work process of fire-fighting vehicle is more and more important.
Fire-fighting vehicle, especially high lifting kind fire fighting truck, the field condition that in the fire-fighting operation process, often needs the various complexity of reply, according to the difference of fire water supply, the operation process that fire-fighting vehicle should be finished comprises Absorb Water operation, fire hydrant water supply operation, tank car water supply operation, inhales foam operation, the operation of self-priming foam etc. outward.
In processes such as Absorb Water operation, negative pressure can appear in the aqueduct of fire fighting truck, and can be by the negative pressure value in the vacuum meter measurement aqueduct that is communicated with described aqueduct; In some other operation process, can directly feed press water in the aqueduct of fire fighting truck and, also will enter press water in the described vacuum meter at this moment by the water pump supercharging.
In order to obtain measured value comparatively accurately, the pressure measurement scope of existing vacuum meter does not comprise malleation usually, mostly is-0.1MP to 0MPa; But hydraulic pressure is usually far above the maximum range of vacuum meter when malleation supplies water, thereby cause the vacuum meter of fire-fighting vehicle in operation process, to damage easily, pressure also can appear when in addition, the pipeline of fire-fighting vehicle being carried out seal tightness test in the aqueduct far above the situation of vacuum meter range.
For fear of the vacuum meter frequent breakage, the vacuum meter that has has suitable malleation range, and for example its range can be-0.1MP to 2.5MP, and like this, vacuum meter is difficult for impaired relatively when malleation supplies water.But because negative pressure range shared ratio in total range is too small, vacuum meter is difficult to accurately indication vacuum in the operation process such as Absorb Water, thereby causes vacuum meter can not bring into play due effect, performs practically no function.
Therefore, should the diversion system of existing fire-fighting vehicle be improved.How avoiding the vacuum meter frequent breakage guaranteeing that vacuum meter is accurately indicated under the situation of vacuum, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of diversion system of fire-fighting vehicle, and its vacuum meter is not fragile during malleation water supply operation, and its vacuum meter has higher pointing accuracy during the Absorb Water operation.Another purpose of the present utility model provides a kind of fire-fighting vehicle that comprises above-mentioned diversion system.
For solving the problems of the technologies described above; the utility model provides a kind of diversion system of fire-fighting vehicle; the vacuum meter that comprises aqueduct and the described aqueduct vacuum of measurement; be provided with automatic safety device between described vacuum meter and the described aqueduct; when feeding positive pressure water in the described aqueduct, the interface channel between described aqueduct of described automatic safety device shutoff and the described vacuum meter.
Preferably, described automatic safety device comprises shuttle valve, and the outlet of described shuttle valve and first import are communicated with described aqueduct, and second import of described shuttle valve is communicated with the import of described vacuum meter.
Preferably, be connected the vacuum meter pressure relief device between second import of described shuttle valve and the described vacuum meter, so that selectively described second import is communicated with atmosphere.
Preferably, described vacuum meter pressure relief device is specially to unload and compresses switch.
Preferably, be connected check valve between first import of described shuttle valve and the atmosphere, so that barotropic fluid is discharged described automatic safety device through described check valve.
The utility model also provides a kind of fire-fighting vehicle, comprises the diversion system of above-mentioned each described fire-fighting vehicle.
The diversion system of fire-fighting vehicle provided by the utility model; between its aqueduct and the vacuum tube automatic safety device is set; when feeding positive pressure water in the described aqueduct; interface channel between described aqueduct of described automatic safety device shutoff and the described vacuum meter; described vacuum meter and positive pressure water are isolated; therefore also be difficult for being damaged even without the described vacuum meter of malleation range, help increasing the service life and reduce the use cost of fire-fighting vehicle.In addition, because vacuum meter needn't be provided with the malleation range, the precision of its negative pressure range obviously will significantly improve, vacuum meter thereby can work reliably.
A kind of preferred embodiment in; the diversion system of fire-fighting vehicle provided by the utility model further comprises check valve; when feeding positive pressure water in the described aqueduct; positive pressure water can in time be discharged described automatic safety device via described check valve, effectively reduces the suffered impact of described automatic safety device.When carrying out the Absorb Water operation, described closed check valve, vacuum meter can operate as normal.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of diversion system of fire-fighting vehicle that the utility model provides;
Fig. 2 is the structural representation of the another kind of specific embodiment of diversion system of fire-fighting vehicle that the utility model provides.
The specific embodiment
Core of the present utility model provides a kind of diversion system of fire-fighting vehicle, and its vacuum meter is not fragile during malleation water supply operation, and its vacuum meter has higher pointing accuracy during the Absorb Water operation.Another core of the present utility model provides a kind of fire-fighting vehicle that comprises above-mentioned diversion system.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of specific embodiment of diversion system of fire-fighting vehicle that the utility model provides.
In a kind of specific embodiment, the diversion system of fire-fighting vehicle provided by the utility model comprises aqueduct 1, and the water source when aqueduct 1 is used to connect the Absorb Water operation perhaps connects the malleation water source.
Diversion system provided by the utility model also comprises vacuum meter 3, is used for measuring when the Absorb Water operation vacuum of aqueduct 1.Vacuum meter 3 is damaged when malleation supplies water, and can be connected automatic safety device 2 between aqueduct 1 and the vacuum meter 3.
Automatic safety device 2 should satisfy following requirement:
At first, can be automatically that vacuum meter 3 and positive pressure water is isolated when malleation supplies water, avoid vacuum meter directly to be subjected to the impact of positive pressure water;
Secondly, during the Absorb Water operation, automatic safety device 2 should not disturb the operate as normal of vacuum meter, so that vacuum meter 3 is connected with aqueduct 1, accurately obtains the vacuum of aqueduct 1.
The concrete structure of automatic safety device 2 can design with reference to Fig. 1.
The outside of automatic safety device 2 has A port and B port, and two ports connect aqueduct 1 and vacuum meter 3 respectively.Automatic safety device 2 comprises shuttle valve 21, and first import D of shuttle valve 21 and outlet E are communicated with the A port of automatic safety device 2 outsides, and the second import F of shuttle valve 21 is communicated with the B port of automatic safety device 2 outsides.
When feeding positive pressure water in the aqueduct 1, positive pressure water will enter the cavity of resorption of shuttle valve 21 from the first import D, and promote to be positioned on the spool of meta and move, and therefore the second import F of shuttle valve 21 is closed by spool, and vacuum meter 3 is isolated with positive pressure water, and is therefore not fragile.
When fire-fighting vehicle carries out the Absorb Water operation, negative pressure will appear in the aqueduct 1, this negative pressure will be impelled the spool of shuttle valve 21 to move down and the first import D of shuttle valve 21 will be closed, vacuum meter 3 will be communicated with aqueduct 1 by the second import F and the outlet E of shuttle valve 21 like this, thereby successfully measure the vacuum of aqueduct 1.
Between the import of vacuum meter 3 and the atmosphere vacuum meter pressure relief device can be set, in order to selectively the vacuum meter import is communicated with atmosphere.
Particularly, between second import F of shuttle valve 21 and the atmosphere balance channel can be set, and can unload the C that compresses switch in the end setting of described balance channel, open and unload the C that compresses switch the import of vacuum meter 3 is communicated with atmosphere, the pointer of vacuum meter 3 can make zero.
Can also the diversion system of above-mentioned fire-fighting vehicle be further improved.
Please refer to Fig. 2, Fig. 2 is the structural representation of the another kind of specific embodiment of diversion system of fire-fighting vehicle that the utility model provides.
Can be on the basis of the diversion system of fire-fighting vehicle shown in Figure 1, check valve 22 further is set, and check valve 22 specifically can be arranged between the first import D and atmosphere of shuttle valve 21, as shown in Figure 2, check valve 22 connects the first import D with port G, and its other end connects relief port I.
Also can be simultaneously the second import F of shuttle valve 21 be connected with check valve 22, port H and port G that both connected are positioned at the same side.
When feeding positive pressure water in the aqueduct 1, positive pressure water will enter check valve 22 by port G from the first import D, and be discharged by relief port I.
When fire-fighting vehicle carries out the Absorb Water operation, negative pressure will appear in the aqueduct 1, and check valve 22 keeps closed condition, can not disturb vacuum meter 3 operate as normal.
After check valve 22 further was set, when feeding positive pressure water in the aqueduct 1, positive pressure water can in time be discharged automatic safety devices 2 via check valve 22, effectively reduced the suffered impact of automatic safety device 2.
The utility model also provides a kind of fire-fighting vehicle, comprises the diversion system of above-mentioned each described fire-fighting vehicle.The structure of described other each several parts of fire-fighting vehicle sees also prior art, and this paper repeats no more.
More than fire-fighting vehicle that the utility model provides and diversion system thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1, a kind of diversion system of fire-fighting vehicle; the vacuum meter that comprises aqueduct and the described aqueduct vacuum of measurement; it is characterized in that; be provided with automatic safety device between described vacuum meter and the described aqueduct; when feeding positive pressure water in the described aqueduct, the interface channel between described aqueduct of described automatic safety device shutoff and the described vacuum meter.
2, the diversion system of fire-fighting vehicle as claimed in claim 1 is characterized in that, described automatic safety device comprises shuttle valve, and the outlet of described shuttle valve and first import are communicated with described aqueduct, and second import of described shuttle valve is communicated with the import of described vacuum meter.
3, the diversion system of fire-fighting vehicle as claimed in claim 2 is characterized in that, is connected the vacuum meter pressure relief device between second import of described shuttle valve and the described vacuum meter, so that selectively described second import is communicated with atmosphere.
4, the diversion system of fire-fighting vehicle as claimed in claim 3 is characterized in that, described vacuum meter pressure relief device is specially to unload and compresses switch.
5, the diversion system of fire-fighting vehicle as claimed in claim 3 is characterized in that, is connected check valve between first import of described shuttle valve and the atmosphere, so that barotropic fluid is discharged described automatic safety device through described check valve.
6, a kind of fire-fighting vehicle is characterized in that, comprises as each described diversion system of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201764099U CN201320360Y (en) | 2008-11-24 | 2008-11-24 | Fire-fighting vehicle and water diversion system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201764099U CN201320360Y (en) | 2008-11-24 | 2008-11-24 | Fire-fighting vehicle and water diversion system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201320360Y true CN201320360Y (en) | 2009-10-07 |
Family
ID=41157749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201764099U Expired - Lifetime CN201320360Y (en) | 2008-11-24 | 2008-11-24 | Fire-fighting vehicle and water diversion system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201320360Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101732812B (en) * | 2008-11-24 | 2011-11-02 | 徐州重型机械有限公司 | Fire-fighting vehicle and water diversion system thereof |
-
2008
- 2008-11-24 CN CNU2008201764099U patent/CN201320360Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101732812B (en) * | 2008-11-24 | 2011-11-02 | 徐州重型机械有限公司 | Fire-fighting vehicle and water diversion system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204064546U (en) | Concrete pumping pipe plugging pick-up unit | |
| CN203100987U (en) | Testing tool for rubber sealing plugs of automobile lamp wire harness | |
| CN203337347U (en) | Multi cavity air tightness test device | |
| CN201320360Y (en) | Fire-fighting vehicle and water diversion system thereof | |
| CN203376113U (en) | Leakage-testing device for metal corrugated type conservator transformer | |
| CN101732812B (en) | Fire-fighting vehicle and water diversion system thereof | |
| CN204694428U (en) | A kind of axle system stern tube hydraulic sealing test device | |
| CN202676392U (en) | Air tightness detecting device for connector | |
| CN102706713B (en) | Rock liquid saturation device | |
| CN206387483U (en) | A kind of pneumatic weighing device | |
| US12000222B2 (en) | Pressure compensation device with accumulator group for controlled pressure drilling | |
| CN204637402U (en) | The indoor hydrant pressure testing machine that testing efficiency is high | |
| CN203275023U (en) | Transformer vacuum measurement special-purpose tool | |
| CN210803133U (en) | Heat exchanger hydrostatic test exhaust apparatus | |
| CN205999980U (en) | A kind of laminating water supply equipment | |
| CN102944506A (en) | Impervious instrument for detecting water-proof materials | |
| CN206338588U (en) | A kind of long distance pipeline detection means | |
| CN202676411U (en) | Detector for sealing property of gas pipeline | |
| CN202693224U (en) | Immersion type air leakage testing device for bicycle front fork casting | |
| CN202469496U (en) | Beam tube leak detector | |
| CN104815408A (en) | Indoor fire hydrant press testing device with high testing efficiency and press testing method using same | |
| CN201440093U (en) | Anti-condensation device for combined balance | |
| CN205666170U (en) | Be used for gas filled equipment of SF6 circuit breaker | |
| CN212513518U (en) | Automatic detect quantitative jar seepage mechanism and ration play machine of gluing | |
| CN201672936U (en) | Portable device for detecting static pressure and pipeline leakage of multi-medium meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091007 Effective date of abandoning: 20081124 |