CN2206309Y

CN2206309Y - External control type anti-freezing device for running water pipe

Info

Publication number: CN2206309Y
Application number: CN 94209444
Authority: CN
Inventors: 陈玉凡
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-27
Filing date: 1994-04-27
Publication date: 1995-08-30
Anticipated expiration: 2004-04-27

Abstract

The utility model relates to an antifreezing device for a tap water pipe. The utility model is composed of a main valve and an external control pressure lever mechanism, wherein, the main valve comprises a three-way pipe and a main valve pipe, a spacer plate which is arranged in the three-way pipe is provided with a throttle opening, and a gap opening is arranged between the spacer plate and a pipe wall; a piston is arranged in the three-way pipe, the piston can be controlled to move up and down through a piston rod by means of the external control pressure lever mechanism, and the piston is in an opening or a blocking state. When the piston is in the opening state, a water inlet and a water outlet are communicated through the throttle opening, and water supply is normal. When the piston is in the blocking state, water source is cut off, and accumulated water in the water pipe can be discharged from a discharging opening through the gap opening. The utility model has the advantages of simple structure and convenient use.

Description

External control type anti-freezing device for running water pipe

The utility model is a kind of defroster of running water pipe.

In northern China, every year, frozen problem all can take place in the outdoor tap water pipe since winter has set in, and it is boiling hot that method commonly used is that charbroil, hot water water, and with the fusing of the ice in the water pipe, because water pipe often is subjected to the barbecue of high temperature, thereby had influenced the application life of water pipe.The employing straw rope or the burlap that also have swathe water pipe, and this part freezes but can only prevent antipriming pipe, and water tap freezes still to can't resolve.More advanced method is to dig a bite ground well, loads onto switching valve in the water pipe of ground well, and during water, this valve of people's down-hole operation is not cut off the water supply, and bleeds off the ponding in the water pipe of ground, prevents to freeze.When water, the people goes into the well again, operates this valve, the water source is opened resume water supply, and obviously operates ten sides trouble, and last down-hole well is also very arduous.

The purpose of this utility model is to realize a kind of external control type tap-water pipe defrosting device.Solve the frozen problem of outdoor tap water pipe, and easy to use, cheap.

Main points of the present utility model are, the external control type tap-water pipe defrosting device that adopts main valve and external control pressure lever mechanism to form, utilize external control pressure lever mechanism control piston bar knee-action, make the piston on the piston rod be in unlatching or sealed condition, thereby can switch the tee piece on the main valve, finish supply water or cut off the water supply, sluicing work.This device is contained under the standpipe of water tap, does not freeze to guarantee this section water pipe and water tap.

Be elaborated below in conjunction with accompanying drawing

Fig. 1 is an external control type tap-water pipe defrosting device schematic diagram

Fig. 2 is the sectional view of tee piece

Fig. 3 is an external control pressure lever mechanism work schematic diagram

Fig. 4 is that the K of Fig. 1 is to view

As Fig. 1, shown in Figure 2, external control type tap-water pipe defrosting device is made up of main valve 9 and external control pressure lever mechanism 20, this main valve 9 comprises tee piece 8 and main valve pipe 6, two relative ports of this tee piece 8 are respectively water inlet 10 and delivery port 11, its another port is a primary valve 12, and be communicated with above-mentioned valve pipe 6, threeway place in this tee piece 8 is provided with dividing plate 13, on this dividing plate 13 restriction 14 is arranged, this restriction 14 is relative with described primary valve 12, and described water inlet 10 is communicated with delivery port 11, described dividing plate 13 leaves clearance aperture 15 in the joint of primary valve tube wall and delivery port tube wall, piston 7 in order to the described restriction 14 of shutoff is housed in described primary valve 12, the inner tubal wall of this piston 7 and described primary valve 12 is for being slidingly matched, this piston 7 can make described water inlet 10 and described delivery port 11 connect by described restriction 14 when being in the enable possition, this piston 7 can make described delivery port 11 and primary valve 12 connect by described clearance aperture 15 when being in block-up position, piston rod 5 by above-mentioned external control pressure lever mechanism 20 control liftings is housed on this piston 7, this piston rod 5 passes in the described main valve pipe 6, to cooperate installation, on described main valve pipe 6, have weif orifice 16 with described external control pressure lever mechanism 20.

The lifting of piston rod can free-handly be operated, and also can adopt the external control pressure lever mechanism, and the external control pressure lever mechanism can have multiple mode, Figure 3 shows that a kind of mode of external control pressure lever mechanism.As Fig. 1, Fig. 3, shown in Figure 4, described external control pressure lever mechanism 20 includes cam 1, sheath 4, this sheath 4 is contained on the described main valve pipe 6, and the extension of described spring lever 5 is sleeved on wherein, the openend of described sheath 4 has a slot 17, described cam 1 is contained in the described slot 17 by rotating shaft 18, on described cam 1, handgrip 19 is housed, close piston 7 places at described piston rod 5 are set with spring 21, the announcement of this spring 21 closely is stuck on the card rib 30 of described main valve pipe 6 inwalls by piston 7 ends, the other end of this spring 21 be stuck on the described piston rod 5 fixed head 22 on.

As Fig. 1, Fig. 2, shown in Figure 3, this device when mounted, the lower port of the standpipe of delivery port 11 and water tap is connected, and water inlet 10 and water inlet pipe are connected.When water and needs do not sluice, handgrip 19 is lifted, utilize the big labyrinth of becoming gradually of cam 1 that piston rod 5 is depressed by manpower, piston 7 is blocked downwards and with restriction 14 at this moment, and clearance aperture 15 exposes, cut off the water supply like this, the water of water tap releases from the weif orifice 16 on the main valve pipe 6 by clearance aperture 15.Under normal water situation, again handgrip 19 is pressed down, by the tension force of spring 21 piston rod 5 and piston 7 to be mentioned, cam 1 is got back to original position, and at this moment restriction 14 is opened, and clearance aperture 15 is shut by piston 7, so just can normal water supply.

The piston that this device adopted is the piston group that several pistons is formed, and sealing mat is housed reveals with waterproof.

As shown in Figure 1, suit handle bracket 2 on described sheath 4, this handle bracket 2 by with described sheath 4 on female 3 location of the stroke adjustment that is threaded, can regulate the position of handle bracket 2 by stroke adjustment mother 3, thus fine-tuning piston stroke.

The technical data and the performance parameter of this device are as follows: the caliber 1 of tee piece "; Main valve bore 20mm; Piston stroke 12.5mm; 90 ° of handgrip pivot angles; Sluicing time＜15 second; Flooding time＜5 second.

This apparatus structure is simple, cheap, and is easy to use.This device all has reasonability and superiority from performance parameter and technical data, so this device is expected to extensively promote at home.

Claims

1, a kind of external control type tap-water pipe defrosting device, form by main valve and external control pressure lever mechanism, it is characterized in that this main valve includes tee piece and main valve pipe, two relative ports of this tee piece are respectively water inlet and delivery port, its another port is a primary valve, and be communicated with above-mentioned main valve pipe, threeway place in this tee piece is provided with dividing plate, on this dividing plate restriction is arranged, this restriction is relative with described primary valve, and described water inlet is communicated with delivery port, described dividing plate leaves clearance aperture in the joint of described primary valve tube wall and described delivery port tube wall, piston in order to the described restriction of shutoff is housed in described primary valve, the inner tubal wall of this piston and described primary valve is for being slidingly matched, described water inlet and described delivery port are connected by described restriction, described delivery port and primary valve are connected by described clearance aperture, piston rod by above-mentioned external control pressure lever mechanism control lifting is housed on this piston, this piston rod passes in the described main valve pipe, to cooperate installation, on described main valve pipe, have weif orifice with described external control pressure lever mechanism.

2, external control type tap-water pipe defrosting device according to claim 1, it is characterized in that described external control pressure lever mechanism includes cam, sheath, this sheath is contained on the described main valve pipe, and the extension of described spring lever is sleeved on wherein, the openend of described sheath has a slot, described cam is contained in the described slot by rotating shaft, on described cam, handgrip is housed, close piston place at described piston rod is set with spring, the close piston end of this spring is stuck on the card rib of described main valve inside pipe wall, and the other end of this spring is stuck on the fixed head on the described piston rod.

3, external control type tap-water pipe defrosting device according to claim 2 is characterized in that suit handle bracket on described sheath, this handle bracket by with described sheath on the female location of the stroke adjustment that is threaded.