A kind of concealed underground hydrant
Technical field
This utility model relates to a kind of fire hydrant, is specifically related to a kind of concealed underground hydrant.
Background technology
Fire hydrant includes indoor fireplug and Outdoor Fire Hydrant, and Outdoor Fire Hydrant is divided into again above ground hydrant and underground hydrant.Above ground hydrant fixes on the ground, easy to use, but it affects traffic, is susceptible to collision, causes the waste of property and resource;Although and underground hydrant does not exist the problem of above ground hydrant, but it needs fireman to go into the well installation fire hose in use, brings inconvenience to fire-fighting work.
Utility model content
Though the purpose of this utility model is the deficiency in order to overcome underground hydrant of the prior art to exist, it is provided that a kind of can install fire hose, concealed underground hydrant easy to use on the ground.
The technical solution of the utility model is:
nullA kind of concealed underground hydrant,The most fixing pipe including upper and lower closed at both ends、The first piston that can slide along the most fixing pipe、The vertical lifting pipe in being arranged on the most fixing pipe and being connected with first piston、It is arranged on the self adaptation mechanism for opening/closing in the most fixing pipe and is arranged on the time-delay mechanism in vertical lifting pipe,The upper end of the most fixing described pipe is provided with dodges through hole,The upper end of described vertical lifting pipe is through dodging through hole and being positioned at above the most fixing pipe,The upper end closed of vertical lifting pipe,On vertical lifting pipe and be positioned at vertically fixing pipe and be arranged over fire coupling,The lower end of vertical lifting pipe is down through first piston,And the lower ending opening of vertical lifting pipe,On described vertically fixing pipe medial surface and be positioned at first piston and be arranged over fixing pipe upper limit position block,Vertically fix on pipe medial surface and be positioned at below first piston and be provided with fixing pipe lower position block,Described self adaptation mechanism for opening/closing includes being arranged on vertically fixing manages interior and is positioned at the first guide pin bushing below vertical lifting pipe、The first guide rod of being slidably arranged in the first guide pin bushing and being arranged on the first guide rod for controlling the spool of vertical lifting pipe on/off,Described first guide pin bushing is connected with the most fixing pipe by head rod,Spool is positioned at the top of the first guide pin bushing,On first guide rod lateral surface and be positioned at below the first guide pin bushing and be provided with the first guide rod limited block;On described vertically fixing pipe lateral surface and be positioned at below the first guide pin bushing and be provided with water inlet and discharge outlet, water inlet is provided with water inlet switch valve, and discharge outlet is provided with drainage switch valve;Described time-delay mechanism includes the dividing plate being arranged in vertical lifting pipe, the vertical conduit being arranged on dividing plate, the second piston being slidably arranged in vertical conduit, be arranged in vertical lifting pipe and be positioned at second above vertical conduit vertically guide pin bushing, the second guide rod being slidably arranged on the second vertical guide pin bushing and the pretension compression spring being set on the second guide rod, the upper port of described vertical conduit is positioned at above dividing plate, lower port is positioned at below dividing plate, on the second guide rod lateral surface and be positioned at the second vertical guide pin bushing and be arranged over the second guide rod limited block.The underground hydrant of this programme can install fire hose, easy to use on the ground.On the other hand, the descending operation of the vertical lifting pipe of this programme need not extra power-equipment.
As preferably, when first piston is resisted against on fixing pipe lower position block, described spool is positioned at vertical lifting pipe and blocks the lower port of vertical lifting pipe;When first piston is resisted against on fixing pipe upper limit position block, spool is positioned at the lower section of vertical lifting pipe.
As preferably, vertically fixing in managing and be positioned at first piston being arranged over back-moving spring, back-moving spring is set on vertical lifting pipe.
As preferably, spool is coaxial with vertical lifting pipe.
As preferably, vertical lifting pipe is coaxially disposed with the most fixing pipe.
As preferably, the second vertical guide pin bushing is connected with vertical lifting pipe by the second connecting rod.
The beneficial effects of the utility model are: have and can install fire hose, feature easy to use on the ground.
Accompanying drawing explanation
Fig. 1 is the concealed underground hydrant of the present utility model a kind of structural representation in actual application.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
In figure: vertical lifting pipe 1, fall way limited block 2, fire coupling 3, first piston 4, spool 5, the first guide pin bushing 6, the first guide rod 7, fixing pipe lower position block 8, drainage switch valve 9, the first guide rod limited block 10, discharge outlet 11, dodge through hole 12, the most fixing pipe 13, fixing pipe upper limit position block 131, water inlet 14, water inlet switch valve 15, water inlet pipe 16, vertical conduit 17, the second piston 18, dividing plate 19, second guide rod 20, pretension compression spring 21, the second vertical guide pin bushing 22, the second guide rod limited block 23.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of concealed underground hydrant include upper and lower closed at both ends vertically fixing pipe 13, can along the first piston 4 that the most fixing pipe slides, be arranged on the most fixing pipe in and the vertical lifting pipe 1, the self adaptation mechanism for opening/closing being arranged in the most fixing pipe that are connected with first piston and be arranged on the time-delay mechanism in vertical lifting pipe.The upper end of the most fixing pipe is provided with dodges through hole 12.Vertical lifting pipe is coaxially disposed with the most fixing pipe.
The upper end of vertical lifting pipe is through dodging through hole and being positioned at above the most fixing pipe.The upper end closed of vertical lifting pipe.On vertical lifting pipe and be positioned at vertically fixing pipe and be arranged over fire coupling 3, the number of the fire coupling of the present embodiment is one.The lower end of vertical lifting pipe is down through first piston, and the lower ending opening of vertical lifting pipe.Vertical lifting pipe is sealedly and fixedly connected with first piston.Vertically fix on pipe medial surface and be positioned at first piston and be arranged over fixing pipe upper limit position block 131, vertically fix on pipe medial surface and be positioned at below first piston being provided with fixing pipe lower position block 8.Vertically fix in managing and be positioned at first piston and be arranged over back-moving spring 2.Back-moving spring is set on vertical lifting pipe.The upper end of back-moving spring is resisted against on the inner top surface of the most fixing pipe, and lower end is resisted against on first piston.
Self adaptation mechanism for opening/closing includes being arranged on vertically fixing manages interior and is positioned at the first guide pin bushing 6 below vertical lifting pipe, is slidably arranged on the first guide rod 7 of the first guide pin bushing and is arranged on the first guide rod the spool 5 for controlling vertical lifting pipe on/off.First guide pin bushing is connected with the most fixing pipe by head rod.Spool is positioned at the top of the first guide pin bushing.On first guide rod lateral surface and be positioned at below the first guide pin bushing and be provided with the first guide rod limited block 10.Spool is coaxial with vertical lifting pipe.Spool can be moved to vertical lifting pipe by the lower port of vertical lifting pipe.Vertically fix on pipe lateral surface and be positioned at below the first guide pin bushing and be provided with water inlet 14 and discharge outlet 11.Water inlet is provided with water inlet switch valve 15.Discharge outlet is provided with drainage switch valve 9.
As shown in Figure 1 and Figure 2, time-delay mechanism includes the dividing plate 19 being arranged in vertical lifting pipe, the vertical conduit 17 being arranged on dividing plate, the second piston 18 being slidably arranged in vertical conduit, is arranged in vertical lifting pipe and is positioned at second above vertical conduit vertically guide pin bushing 22, the second guide rod 20 being slidably arranged on the second vertical guide pin bushing and the pretension compression spring 21 being set on the second guide rod.Vertically conduit is positioned at the top of spool.Vertically the upper port of conduit is positioned at above dividing plate, and lower port is positioned at below dividing plate.Vertically the length of conduit is less than the spacing between vertical conduit and the second vertical guide pin bushing.Second vertical guide pin bushing is connected with vertical lifting pipe by the second connecting rod.On second guide rod lateral surface and be positioned at the second vertical guide pin bushing and be arranged over the second guide rod limited block 23.Pretension compression spring is vertical between guide pin bushing and the second piston second.When the second guide rod limited block is resisted against on the second vertical guide pin bushing, the second piston is positioned at vertical conduit and near vertical conduit lower end.
As it is shown in figure 1, when first piston is resisted against on fixing pipe lower position block, spool is positioned at vertical lifting pipe and blocks the lower port of vertical lifting pipe.
When first piston is resisted against on fixing pipe upper limit position block, spool is positioned at the lower section of vertical lifting pipe.
The specifically used process of the concealed underground hydrant of the present embodiment is as follows:
As it is shown in figure 1, concealed underground hydrant is installed to underground, the import of water inlet pipe 16 with water inlet switch valve is connected.
During use: fire fighter is by water inlet switch valve opening, water in water inlet pipe enters in the most fixing pipe, then, vertical lifting pipe is driven to rise by first piston under hydraulic pressure effect, during vertical lifting pipe rises, when moving to above earth's surface on fire coupling, fire fighter just can start to install fire hose on the ground, is docked with fire coupling rapidly by fire hose coupling before spool separates with vertical lifting pipe.
On the other hand, during vertical lifting pipe rises, also band movable valve plug and the first guide rod together being risen, when the first guide rod limited block is resisted against on the first guide pin bushing, spool and the first guide rod stop rising;And first piston also will drive vertical lifting pipe to continue to rise, till first piston is resisted against on fixing pipe upper limit position block, now spool is positioned at the lower section of vertical lifting pipe.When spool is positioned at the lower section of vertical lifting pipe, the water in the most fixing pipe will enter vertical lifting pipe, thus up be elapsed by the second piston of time-delay mechanism and make the second piston move above vertical conduit.When the second piston moves to after above vertical conduit, and the water in the most fixing pipe through vertical conduit and is entered fire hose by fire coupling;Thus the concealed underground hydrant of the present invention has only to open this valve of water inlet switch valve when actually used, just can realize vertical lifting pipe to rise, facilitate fire fighter that fire hose (need not extra power-equipment) is installed on the ground, and automatically supply water for fire hose within following a period of time.
After concealed underground hydrant has used, close water inlet switch valve, opening water discharge controlled valve;Now, the second guide rod and the second piston is made to move down reset under the effect of pretension compression spring, until the second guide rod limited block is resisted against second vertically leads slipped-on position;Then, the pressure of vertical lifting pipe being resetted, till first piston is resisted against on fixing pipe lower position block, now, spool is positioned at vertical lifting pipe and blocks the lower port of vertical lifting pipe;Followed by, close drainage switch valve.