CN105508704A - Ventilating overflow device for fire-fighting truck liquid storage tank - Google Patents
Ventilating overflow device for fire-fighting truck liquid storage tank Download PDFInfo
- Publication number
- CN105508704A CN105508704A CN201610027435.4A CN201610027435A CN105508704A CN 105508704 A CN105508704 A CN 105508704A CN 201610027435 A CN201610027435 A CN 201610027435A CN 105508704 A CN105508704 A CN 105508704A
- Authority
- CN
- China
- Prior art keywords
- valve body
- float
- chamber
- valve
- fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Abstract
The invention belongs to the technical field of fire-fighting equipment, and relates to a ventilating overflow device for a fire-fighting truck liquid storage tank. The fire-fighting truck liquid storage tank comprises a liquid storage tank body, a manhole is formed in the top of the liquid storage tank body, a manhole cover is arranged at the position corresponding to the manhole, a liquid inlet and outlet opening is formed in the lower side portion of the liquid storage tank body, and a liquid inlet and outlet connector is arranged at the position corresponding to the liquid inlet and outlet opening; the ventilating overflow device comprises an overflow pipe column and a ventilating overflow valve, the overflow pipe column is longitudinally arranged in a tank body cavity, the bottom of the overflow pipe column is fixed to the bottom wall of the tank body cavity, an overflow pipe column cavity of the overflow pipe column is communicated with the outside, and the ventilating overflow valve is fixed to the top of the overflow pipe column and communicated with the tank body cavity and the overflow pipe column cavity at the same time. The ventilating overflow device is convenient to manufacture and assemble, and the structure is simplified; airtightness and simpleness of the liquid storage tank body are ensured, it is avoided that the liquid storage tank is blocked by outside foreign matter or damaged by impact of outside factors, and the liquid storage tank is long in service life.
Description
Technical field
The invention belongs to fire fighting device technical field, be specifically related to a kind of ventilation overflow mechanism of fire-fighting truck liquid container, be arranged in fire-fighting truck liquid container, play the effect of ventilation and overflow.
Background technique
Known to the professional person of fire-fighting domain, fire-fighting truck is equipped with liquid container, because liquid container both can store water storage, also can stores storage fire-extinguishing foam, be thus accustomed to liquid container being called water pot or fire-extinguishing foam tank.At the top of liquid container except being provided with for except the water of fire extinguishing filling in liquid container or the liquid feeding mouth of fire-extinguishing foam, be also provided with manhole, the effect of manhole be enter liquid container for fire personnel tank chamber in inspection implemented to liquid container or clean.Because fire-fighting truck must cut out manhole in a state of use, be thus equipped with cover in the position corresponding to manhole, and cover also has decompression function concurrently.The cover of this structural type can see " can cover structure of used in fire-fighting " of patent of invention notification number CN100586059C recommendation.
" the automatic pressure-relieving cover of fire-truck water tank " that the typical example with the liquid container of ventilation and pressure relief can provide see application for a patent for invention publication No. CN101214408A, the aeration liquid head piece being referred to the top being arranged at liquid container in the background technique hurdle of this patent application and the spill pipe be arranged in the tank chamber of liquid container, the upper end of spill pipe leans out tank chamber under the state corresponding to ventilation flow-off, and lower end is stretched over outside tank chamber equally.When filling with liquid in cylinder chamber; air in tank chamber enters ventilation flow-off and causes the external world from spill pipe; when in fire extinguishing procedure; when liquid in tank chamber reduces gradually; ambient air just enters from spill pipe, introduces tank chamber through ventilation flow-off, when in the process of filling with liquid to tank chamber, liquid is expired in tank chamber; then by ventilation flow-off, unnecessary liquid is caused the external world through spill pipe, reach overflow release and protect the effect of liquid container." can cover structure of used in fire-fighting " that the ventilation flow-off of this structural type and the shortcoming of spill pipe are introduced by CN100586509C made up, and this CN100586509C also eliminates the deficiency that CN196199A exists simultaneously.
But all there is following logical fraud in the ventilation overflow mechanism comprised in the prior art of above mentioned patent: one is to reach ventilation overflow object, making the overall tightness of liquid container be affected; Two is make the structure of liquid storage tank lid (i.e. manhole cover, as follows) become complicated, increases and manufactures and installation difficulty; Three is that the position existence of ventilation flow-off is by the anxiety of foreign matters from being blocked (when being located on cover); Four is easily cause damage by extraneous factor.
For above-mentioned prior art, be necessary to be improved, the applicant has done useful design for this reason, and defines technological scheme described below.
Summary of the invention
Task of the present invention be to provide a kind of help avoid with manhole cover be carrier arrange use simplify manhole cover structure, be conducive to embodying good built-in effect and use the overall tightness and terseness of promoting liquid container and avoid by extraneous foreign matters from being blocked or suffer extraneous factor impact failure and be of value to ensureing excellent ventilation, flushing effect and be tending towards the non-maintaining ventilation overflow mechanism using the fire-fighting truck liquid container embodying lasting working life.
Task of the present invention has been come like this, a kind of ventilation overflow mechanism of fire-fighting truck liquid container, described fire-fighting truck liquid container comprises a liquid container tank body, a manhole is offered at the top of this liquid container tank body, a manhole cover is equipped in the position corresponding to manhole, a liquid in-out mouth is offered in the lower side of liquid container tank body, one is equipped for pouring into the liquid of putting out a fire or the liquid in-out interface of being drawn by endoceliac for tank liquid in the tank body chamber of liquid container tank body in the position corresponding to this liquid in-out mouth, described ventilation overflow mechanism comprises an overflow tubing string and a ventilation relief valve, overflow tubing string is arranged in described tank body chamber with longitudinal state, the bottom of this overflow tubing string is fixed with the chamber diapire in tank body chamber and the overflow tubing string chamber of this overflow tubing string communicates with the external world, ventilation relief valve is fixed on the top of overflow tubing string and communicates with tank body chamber and overflow tubing string chamber simultaneously.
In a specific embodiment of the present invention, described ventilation relief valve comprises valve body fixed base, valve body, valve gap, valve rod, spring, float matching seat and float, the bottom of valve body fixed base and the top of described overflow tubing string fix and the central authorities of the short transverse of this valve body fixed base are configured with a valve body fixed base spill cavity, this valve body fixed base spill cavity communicates with described overflow tubing string chamber, the bottom of valve body is fixed by the top of its valve body diapire and valve body fixed base, and spaced apartly on valve body diapire be provided with one group of valve body diapire diversion cavity, communicate with the valve body chamber of valve body and valve body fixed base spill cavity while of this group valve body diapire diversion cavity, valve gap floating ground is arranged in valve body chamber, the upper end of valve rod and valve gap are fixed towards the middle position of the side in valve body chamber, and the lower end of valve rod and the valve stem guide bore of the middle position being opened in valve body diapire are slidably matched, spring is nested with on valve rod, and the upper end of this spring is bearing on valve gap, and the lower end of spring is bearing on valve body diapire, float matching seat is made up of the side extension of described valve body, the bottom of this float matching seat is formed uncovered, and sidepiece offers a matching seat guiding gutter, this matching seat guiding gutter communicates with described tank body chamber, a cavity demarcation strip is also configured with in float matching seat, in float matching seat, an air flow chamber and a floats chamber is separated out by this cavity demarcation strip, air flow chamber is positioned at the top of cavity demarcation strip and is communicated with described valve body chamber by guiding gutter, floats chamber is positioned at the below of cavity demarcation strip, and communicate with matching seat guiding gutter, air flow chamber coordinates head bore to communicate with floats chamber by the float be opened on cavity demarcation strip, float is configured with a float seal chamber, and be formed with a float cooperating head in the narrow contracting in the top of float, this float cooperating head and described float coordinate head bore to match, and be configured with a float restraining groove at float towards the side of described valve body fixed base, this float restraining groove matches with valve body fixed base.
In another specific embodiment of the present invention, an abducent overflow tubing string flange is configured with at the top of described overflow tubing string, one is configured with to extending out the valve body fixed base upper flange established at the top of described valve body fixed base, and bottom is configured with one outwards expands the valve body fixed base lower flange established equally, the valve body diapire of described valve body is fixed by valve body diapire set screw and valve body fixed base upper flange, and valve body fixed base lower flange is fixed by lower flange set screw and overflow tubing string flange; The float restraining groove of the side of described float matches with valve body fixed base upper flange.
In another specific embodiment of the present invention, described valve body diapire is configured with one group of diversion cavity dividing strip with radiation regimes, the space between the dividing strip of adjacent guide chamber is configured to described valve body diapire diversion cavity.
In another specific embodiment of the present invention, at described valve body diapire, the side of described valve gap is provided with limited post, spacing by the down stroke limit of this limited post to valve gap.
Also have in a specific embodiment of the present invention, a spacing back-up ring of valve gap up stroke opened up towards the direction folding in described valve body chamber is configured with on the top of described valve body, described valve gap towards on side and offer a seal ring cavity in the position corresponding to the spacing back-up ring of valve gap up stroke around the circumferencial direction of valve gap, in sealing circle cavity, be provided with a seal ring, sealing circle is corresponding with the spacing back-up ring of valve gap up stroke.
More of the present invention and in a specific embodiment, described valve body fixed base upper flange is configured with the spacing plane of a float restraining groove in the position corresponding to described float, and described float restraining groove coordinates with the spacing planar slide of this float restraining groove.
In an of the present invention and then specific embodiment, be fixed with a valve gap seat board at described valve gap towards the central position of the side in described valve body chamber, upper end and this valve gap seat board of described valve rod are fixed.
Of the present invention again more and in a specific embodiment, a sealing gasket is fixed with towards the side in described floats chamber at described cavity demarcation strip, on sealing pad and corresponding to described float, coordinate the position of head bore to offer a float cooperating head resigning hole, this float cooperating head resigning hole coordinates head bore to overlap with float.
In an again of the present invention and then specific embodiment, described sealing gasket is rubber gasket.
Technological scheme provided by the invention has following technique effect: one, because the overflow tubing string of the structural system by ventilation overflow mechanism has been arranged in the tank body chamber of liquid container tank body with ventilation relief valve, thus having abandoned in prior art take manhole cover as the mode that carrier is arranged, the structure of manhole cover is made to be able to remarkable simplification, both conveniently can manufacture, and can fast assemble again; It two is positioned at tank body chamber due to overflow tubing string and ventilation relief valve, thus embodies desirable built-inly to arrange effect, both can ensure sealing and the terseness of liquid container tank body, can avoid again suffering extraneous foreign matters from being blocked and suffering extraneous factor impact failure; Its three, due to excellent ventilation, flushing effect and be tending towards non-maintaining can be ensured, thus can play lasting working life.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention schematic diagram.
Fig. 2 is the detailed structure view of the ventilation relief valve shown in Fig. 1.
Fig. 3 is the sectional view of Fig. 2.
Embodiment
Technical spirit of the present invention and beneficial effect is clearly understood in order to enable the public, claimant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technological scheme category of the present invention.
In the following description every relate to upper and lower, left and right, front and rear directivity or claim the concept of directionality to be all for the location status residing for the figure be described, object is to facilitate public understanding, thus can not be understood as being particularly limited to technological scheme provided by the invention.
Refer to Fig. 1, show a liquid container tank body 1 of the structural system belonging to fire-fighting truck liquid container, a manhole 11 is offered at the top of this liquid container tank body 1, in the position corresponding to manhole 11, screw 1111 is equipped and is namely fixed with a manhole cover 111 by manhole cover, offer a liquid in-out mouth 12 in the lower side of liquid container tank body 1, be equipped in the position corresponding to this liquid in-out mouth 12 and be namely fixed with one for pouring into the liquid of putting out a fire or the liquid in-out interface 121 of being drawn by the liquid in tank body chamber 13 in the tank body chamber 13 of liquid container tank body 1.
Space set cushion plate 131 is gone back, to increase the intensity of liquid container tank body 1 in tank body chamber 13.In the present embodiment, although liquid in-out interface 12 to be arranged on the bottom of the left side wall of liquid container tank body 1, also can be arranged at the bottom of front panel or rear sidewall, even also can be arranged at the bottom of right side wall.But when liquid in-out interface 12 is provided with the bottom of the right side wall of liquid storage tank body 1, so by the position transfer of ventilation overflow mechanism in tank body chamber 13 that be about to below describe on the left of tank body chamber.Also show whole liquid container tank body 1 in FIG and be arranged at situation on the chassis 4 of fire-fighting truck.
Refer to Fig. 2 and Fig. 3 and composition graphs 1, show overflow tubing string 2 and a ventilation relief valve 3 of the structural system of ventilation overflow mechanism of the present invention, overflow tubing string 2 is arranged in aforementioned tank body chamber 13 (being positioned at the right side in tank body chamber 13) with longitudinal state, the bottom of this overflow tubing string 2 is fixed with the chamber diapire in tank body chamber 13 and the bottom in the overflow tubing string chamber 21 of this overflow tubing string 2 communicates with the external world, and ventilation relief valve 3 is fixed on the top of overflow tubing string 2 and communicates with tank body chamber 13 and overflow tubing string chamber 21 simultaneously.
Please see Fig. 2 and Fig. 3 by emphasis, aforesaid ventilation relief valve 3 comprises valve body fixed base 31, valve body 32, valve gap 33, valve rod 34, spring 35, float matching seat 36 and float 37, the bottom of valve body fixed base 31 and the top of aforementioned overflow tubing string 2 fix and the central authorities of the short transverse of this valve body fixed base 31 are configured with a valve body fixed base spill cavity 311, this valve body fixed base spill cavity 311 communicates with aforementioned overflow tubing string chamber 21, the bottom of valve body 32 is fixed with the top of valve body fixed base 31 by its valve body diapire 321, and spaced apartly on valve body diapire 321 be provided with one group of valve body diapire diversion cavity 3211, communicate with the valve body chamber 322 of valve body 32 and valve body fixed base spill cavity 311 while of this group valve body diapire diversion cavity 3211, valve gap 33 floating ground (both can up also can be descending) is arranged in valve body chamber 322, upper end and the valve gap 33 of valve rod 34 are fixed towards the middle position of the side in valve body chamber 322, and the lower end of valve rod 34 and the valve stem guide bore 3212 of the middle position being opened in valve body diapire 321 are slidably matched, spring 35 is nested with on valve rod 34, and the upper end of this spring 35 is bearing on valve gap 33, and the lower end of spring 35 is bearing on valve body diapire 321, float matching seat 36 is made up of side (the present embodiment the is left side) extension of aforementioned valve body 32, the bottom of this float matching seat 36 is formed uncovered, and sidepiece offers a matching seat guiding gutter 361, this matching seat guiding gutter 361 communicates with aforementioned tank body chamber 13, a cavity demarcation strip 362 is also configured with in float matching seat 36, in float matching seat 36, air flow chamber 363 and a floats chamber 364 is separated out by this cavity demarcation strip 362, air flow chamber 363 is positioned at the top of cavity demarcation strip 362 and is communicated with aforesaid valve body chamber 322 by guiding gutter 3631, floats chamber 364 is positioned at the below of cavity demarcation strip 362, and communicate with matching seat guiding gutter 361, air flow chamber 363 coordinates head bore 3621 to communicate with floats chamber 364 by the float be opened on cavity demarcation strip 362, float 37 is configured with a float seal chamber 371, and be formed with a float cooperating head 372 in the narrow contracting in the top of float 37, this float cooperating head 372 and described float coordinate head bore 3621 to match, and be configured with a float restraining groove 373 at float 37 towards the side of aforementioned valve body fixed base 31, this float restraining groove 373 matches with valve body fixed base 31.
Shown in Fig. 2 and Fig. 3, an abducent overflow tubing string flange 22 is configured with at the top of aforementioned overflow tubing string 2, one is configured with to extending out the valve body fixed base upper flange 312 established at the top of aforesaid valve body fixed base 31, and bottom is configured with one outwards expands the valve body fixed base lower flange 313 established equally, the valve body diapire 321 of aforementioned valve body 32 is being fixed corresponding to the position of the upper flange screw 3122 be preset on valve body fixed base upper flange 312 and valve body fixed base upper flange 312 by valve body diapire set screw 3213, and valve body fixed base lower flange 313 is being fixed corresponding to the position of the lower flange screw 3132 be opened on valve body fixed base lower flange 313 and overflow tubing string flange 22 by lower flange set screw 3131, the float restraining groove 373 of the side of aforementioned float 37 matches with valve body fixed base upper flange 312.
Aforesaid valve body diapire 321 is configured with one group of diversion cavity dividing strip 3214 with radiation regimes, and the space between adjacent guide chamber dividing strip 3214 is configured to aforesaid valve body diapire diversion cavity 3211, and valve body diapire diversion cavity 3211 is in fan-shaped.
At aforesaid valve body diapire 321, the side of aforementioned valve gap 33 is provided with at least one pair of limited post 3215 corresponded to each other, the down stroke limit by this limited post 3215 pairs of valve gaps 33 is spacing.Screw 32151 on limited post 3215 has been shown in Fig. 1, and this screw 32151 is fixed with aforesaid valve body diapire set screw 3213.
The valve gap up stroke spacing back-up ring 323 of one day to the direction folding exhibition in aforementioned valve body chamber 322 is configured with on the top of aforementioned valve body 32, aforementioned valve gap 33 towards on side and offer a seal ring cavity 331 in the position corresponding to the spacing back-up ring 323 of valve gap up stroke around the circumferencial direction of valve gap 33, in sealing circle cavity 331, be provided with a seal ring 3311, sealing circle 3311 is corresponding with valve gap up stroke spacing back-up ring 323.
On aforementioned valve body fixed base upper flange 312 and corresponding to the position of aforementioned float 37, be configured with the spacing plane 3121 of a float restraining groove, aforesaid float restraining groove 373 is slidably matched with the spacing plane 3121 of this float restraining groove.The upper and lower displacement degree of float 37 is the length of float restraining groove 373.
Be fixed with a valve gap seat board 332 towards the central position of the side in described valve body chamber 322 by screw 3321 at aforementioned valve gap 33, upper end and this valve gap seat board 332 of aforementioned stem 34 are fixed, and aforesaid limited post 3215 is corresponding with valve gap seat board 332.
A sealing gasket 3622 is fixed with towards the side sealing gasket set screw 36222 in aforementioned floats chamber 364 at abovementioned cavity demarcation strip 362, on sealing pad 3622 and corresponding to aforementioned float, coordinate the position of head bore 3621 to offer a float cooperating head resigning hole 36221, this float cooperating head resigning hole 36221 coordinates head bore 3621 to overlap with float.
In the present embodiment, aforesaid sealing gasket 3622 is rubber gasket.
Claimant's composition graphs 1 to Fig. 3 describes the working principle of ventilation relief valve 3 of the present invention, when filling with liquid by liquid in-out interface 121 in tank body chamber 13, along with the rising gradually of the liquid level (liquid level) in tank body chamber 13, float 37 also floats gradually, air simultaneously in tank body chamber 13 is successively through matching seat guiding gutter 361, floats chamber 364, float cooperating head resigning hole 36221, float coordinates head bore 3621, air flow chamber 363 and guiding gutter 3631 enter the valve body chamber 322 of valve body 32, enter air in valve body chamber 322 successively through valve body diapire diversion cavity 3211, the valve body fixed base spill cavity 311 of valve body fixed base 31 and the overflow tubing string chamber 21 of overflow tubing string 2 drain into external world's (Fig. 1 shows).Along with the continuation of the liquid level in tank body chamber 13 raises, float 37 also continues to float simultaneously, when the float cooperating head 372 of float 37 probes into float cooperating head resigning hole 36221 and float cooperation head bore 3621, show that tank body chamber 13 has been in and be tending towards full liquid status, ventilation relief valve 3 of the present invention serves the effect of ventilation (giving vent to anger).Now, in tank body chamber 13, fill with liquid if continue, the liquid so in tank body chamber 13 can cover valve gap 33, and under the pressure of liquid, makes valve gap 33 to bottom offset under the reaction force overcoming spring 35, and namely valve rod 34 is descending, and spring 35 compresses.Descending due to valve gap 33, the liquid of the redundancy thus in tank body chamber 13 just enters valve body chamber 322 from aforementioned guiding gutter 3631, and causing the external world through valve body bottom girder diversion cavity 3211, valve body fixed base spill cavity 311 and overflow tubing string chamber 21 successively, ventilation relief valve 3 of the present invention serves the effect of overflow.When the liquid in tank body chamber 13 being drawn use by liquid in-out interface 121, along with the reduction gradually of the liquid level in tank body chamber 13, float 37 descending, float cooperating head 372 is left float and is coordinated head bore 3621 and float cooperating head resigning hole 36221, meanwhile, ambient air is successively through overflow tubing string chamber 21, valve body fixed base spill cavity 311, valve body bottom girder diversion cavity 3211, valve body chamber 322, guiding gutter 3631, air flow chamber 363, float coordinates pass 3621, float cooperating head resigning hole 36221, floats chamber 364 and matching seat guiding gutter 361 enter in tank body chamber 13, ventilation relief valve 3 of the present invention serves the effect of return-air.
In sum, technological scheme provided by the invention overcomes the deficiency in prior art, completes invention task, has cashed the technique effect referred in the superincumbent technique effect hurdle of claimant faithfully.
Claims (10)
1.
a kind of ventilation overflow mechanism of fire-fighting truck liquid container, described fire-fighting truck liquid container comprises a liquid container tank body (1), a manhole (11) is offered at the top of this liquid container tank body (1), a manhole cover (111) is equipped in the position corresponding to manhole (11), a liquid in-out mouth (12) is offered in the lower side of liquid container tank body (1), one is equipped for pouring into the liquid of putting out a fire or the liquid in-out interface (121) of being drawn by the liquid in tank body chamber (13) in the tank body chamber (13) of liquid container tank body (1) in the position corresponding to this liquid in-out mouth (12), it is characterized in that described ventilation overflow mechanism comprises an overflow tubing string (2) and ventilation relief valve (3), overflow tubing string (2) is arranged in described tank body chamber (13) with longitudinal state, the bottom of this overflow tubing string (2) fixes with the chamber diapire of tank body chamber (13) and the overflow tubing string chamber (21) of this overflow tubing string (2) communicates with the external world, ventilation relief valve (3) is fixed on the top of overflow tubing string (2) and communicates with tank body chamber (13) and overflow tubing string chamber (21) simultaneously.
2.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 1, it is characterized in that described ventilation relief valve (3) comprises valve body fixed base (31), valve body (32), valve gap (33), valve rod (34), spring (35), float matching seat (36) and float (37), the bottom of valve body fixed base (31) and the top of described overflow tubing string (2) are fixed and the central authorities of the short transverse of this valve body fixed base (31) are configured with a valve body fixed base spill cavity (311), this valve body fixed base spill cavity (311) communicates with described overflow tubing string chamber (21), the bottom of valve body (32) is fixed by the top of its valve body diapire (321) with valve body fixed base (31), and be spaced apartly provided with one group of valve body diapire diversion cavity (3211) valve body diapire (321) is upper, communicate with the valve body chamber (322) of valve body (32) and valve body fixed base spill cavity (311) while of this group valve body diapire diversion cavity (3211), valve gap (33) floating ground is arranged in valve body chamber (322), upper end and the valve gap (33) of valve rod (34) are fixed towards the middle position of the side of valve body chamber (322), and the lower end of valve rod (34) and the valve stem guide bore (3212) of the middle position being opened in valve body diapire (321) are slidably matched, spring (35) is nested with on valve rod (34), and the upper end of this spring (35) is bearing on valve gap (33), and the lower end of spring (35) is bearing on valve body diapire (321), float matching seat (36) is made up of the side extension of described valve body (32), the bottom of this float matching seat (36) is formed uncovered, and sidepiece offers a matching seat guiding gutter (361), this matching seat guiding gutter (361) communicates with described tank body chamber (13), a cavity demarcation strip (362) is also configured with in float matching seat (36), in float matching seat (36), an air flow chamber (363) and a floats chamber (364) is separated out by this cavity demarcation strip (362), air flow chamber (363) is positioned at the top of cavity demarcation strip (362) and is communicated with described valve body chamber (322) by guiding gutter (3631), floats chamber (364) is positioned at the below of cavity demarcation strip (362), and communicate with matching seat guiding gutter (361), air flow chamber (363) coordinates head bore (3621) to communicate with floats chamber (364) by the float be opened on cavity demarcation strip (362), float (37) is configured with a float seal chamber (371), and be formed with a float cooperating head (372) in the narrow contracting in top of float (37), this float cooperating head (372) and described float coordinate head bore (3621) to match, and be configured with a float restraining groove (373) at float (37) towards the side of described valve body fixed base (31), this float restraining groove (373) matches with valve body fixed base (31).
3.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that being configured with an abducent overflow tubing string flange (22) at the top of described overflow tubing string (2), one is configured with to extending out the valve body fixed base upper flange (312) established at the top of described valve body fixed base (31), and bottom is configured with one outwards expands the valve body fixed base lower flange (313) established equally, the valve body diapire (321) of described valve body (32) is fixed by valve body diapire set screw (3213) and valve body fixed base upper flange (312), and valve body fixed base lower flange (313) is fixed by lower flange set screw (3131) and overflow tubing string flange (22), the float restraining groove (373) of the side of described float (37) matches with valve body fixed base upper flange (312).
4.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that being configured with one group of diversion cavity dividing strip (3214) with radiation regimes on described valve body diapire (321), the space between adjacent guide chamber dividing strip (3214) is configured to described valve body diapire diversion cavity (3211).
5.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that, at described valve body diapire (321), the side of described valve gap (33) is provided with limited post (3215), spacing by the down stroke limit of this limited post (3215) to valve gap (33).
6.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that being configured with a spacing back-up ring of valve gap up stroke (323) opened up towards the direction folding of described valve body chamber (322) on the top of described valve body (32), a seal ring cavity (331) is offered in the position corresponding to the spacing back-up ring of valve gap up stroke (323) around the circumferencial direction of valve gap (33) towards upper side at described valve gap (33), a seal ring (3311) is provided with in sealing circle cavity (331), sealing circle (3311) is corresponding with the spacing back-up ring of valve gap up stroke (323).
7.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 3, it is characterized in that going up described valve body fixed base upper flange (312) and being configured with the spacing plane of a float restraining groove (3121) in the position corresponding to described float (37), described float restraining groove (373) and the spacing plane of this float restraining groove (3121) are slidably matched.
8.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that being fixed with a valve gap seat board (332) at described valve gap (33) towards the central position of the side of described valve body chamber (322), the upper end of described valve rod (34) and this valve gap seat board (332) are fixed.
9.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 2, it is characterized in that being fixed with a sealing gasket (3622) described cavity demarcation strip (362) towards the side of described floats chamber (364), go up at sealing pad (3622) and offer a float cooperating head resigning hole (36221) in the position corresponding to described float cooperation head bore (3621), this float cooperating head resigning hole (36221) coordinates head bore (3621) to overlap with float.
10.
the ventilation overflow mechanism of fire-fighting truck liquid container according to claim 9, is characterized in that described sealing gasket (3622) is rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027435.4A CN105508704A (en) | 2016-01-15 | 2016-01-15 | Ventilating overflow device for fire-fighting truck liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027435.4A CN105508704A (en) | 2016-01-15 | 2016-01-15 | Ventilating overflow device for fire-fighting truck liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105508704A true CN105508704A (en) | 2016-04-20 |
Family
ID=55716899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610027435.4A Pending CN105508704A (en) | 2016-01-15 | 2016-01-15 | Ventilating overflow device for fire-fighting truck liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105508704A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210242A (en) * | 2018-10-10 | 2019-01-15 | 湖北三六特种装备有限责任公司 | A kind of novel overflow device |
| GB2619057A (en) * | 2022-05-26 | 2023-11-29 | Mallaghan Engineering Ltd | Portable water service vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1427562A (en) * | 1973-03-02 | 1976-03-10 | Dover Corp | Vent valves for tanks |
| CN202080622U (en) * | 2010-01-13 | 2011-12-21 | 罗森巴赫国际股份公司 | Case fitting part |
| CN203090326U (en) * | 2012-12-24 | 2013-07-31 | 广东永强奥林宝国际消防汽车有限公司 | Overflow recovery device for foam tank |
| CN205350526U (en) * | 2016-01-15 | 2016-06-29 | 苏州市捷达消防车辆装备有限公司 | Overflow arrangement that ventilates of fire engine liquid storage pot |
-
2016
- 2016-01-15 CN CN201610027435.4A patent/CN105508704A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1427562A (en) * | 1973-03-02 | 1976-03-10 | Dover Corp | Vent valves for tanks |
| CN202080622U (en) * | 2010-01-13 | 2011-12-21 | 罗森巴赫国际股份公司 | Case fitting part |
| CN203090326U (en) * | 2012-12-24 | 2013-07-31 | 广东永强奥林宝国际消防汽车有限公司 | Overflow recovery device for foam tank |
| CN205350526U (en) * | 2016-01-15 | 2016-06-29 | 苏州市捷达消防车辆装备有限公司 | Overflow arrangement that ventilates of fire engine liquid storage pot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210242A (en) * | 2018-10-10 | 2019-01-15 | 湖北三六特种装备有限责任公司 | A kind of novel overflow device |
| GB2619057A (en) * | 2022-05-26 | 2023-11-29 | Mallaghan Engineering Ltd | Portable water service vehicle |
| GB2619057B (en) * | 2022-05-26 | 2024-05-15 | Mallaghan Engineering Ltd | Portable water service vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202527296U (en) | Shower caddy with automatic pressure relief function | |
| CN105508704A (en) | Ventilating overflow device for fire-fighting truck liquid storage tank | |
| CN205350526U (en) | Overflow arrangement that ventilates of fire engine liquid storage pot | |
| CN211285832U (en) | Fire-fighting water storage tank | |
| CN105888020B (en) | Negative pressure injection well downhole flow regulator for closet | |
| CN205224200U (en) | Big moisturizing device prevent siphon structure | |
| CN207550463U (en) | A kind of permeability cell bleeder | |
| CN201250431Y (en) | Anti-siphon water intake valve | |
| CN201934729U (en) | Gas check water seal valve | |
| CN209196175U (en) | A kind of novel overflow device | |
| CN206941765U (en) | A kind of floor drain of automatically cleaning and anti-peculiar smell | |
| CN204956888U (en) | Respiratory tube used for diving | |
| CN206859379U (en) | A kind of anti-odor floor drain | |
| CN110513513A (en) | A kind of convenient single slope drainage valve | |
| CN109334906A (en) | A kind of drowned swim ring of preventing child | |
| US2270447A (en) | Tank testing device | |
| CN220360664U (en) | Fire pump adapter | |
| CN106090353A (en) | Fish mouth type exhaust outlet device and be provided with the water body seepage control system of this device | |
| CN207161793U (en) | It is straight-through to close vertical storm valve | |
| CN204264423U (en) | A kind of boats and ships bathroom unit water tank | |
| CN204140993U (en) | A kind of water inlet valve body of overflow-type low noise | |
| CN103195148A (en) | Novel anti-reverse-overflow floor drain device | |
| CN207034303U (en) | One kind is without cylinder pressure reducer | |
| CN211646663U (en) | Automatic water seal type floor drain plugging device | |
| CN208416916U (en) | Multifunctional water pump adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160420 |