CN2934373Y

CN2934373Y - Water pipeline against freezing

Info

Publication number: CN2934373Y
Application number: CN 200620122974
Authority: CN
Inventors: 梁俊忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-08
Filing date: 2006-08-08
Publication date: 2007-08-15
Anticipated expiration: 2016-08-08

Abstract

The utility model discloses a frost protection tap water pipe comprising a vertical water pipe. Bottom port of the water pipe is arranged with valve and top port of the water pipe is arranged with valve control device. The top of the side of water pipe is arranged with outlet. The valve is consisted of valve body and valve core. The valve body is connected to the bottom port of the water pipe. Connected opposite cartex cone chamber is arranged inward of the two ends. The cone chamber is crossed with one tie bar sleeved with two cone valve cores. Internal wall of the top cone chamber is arranged with drainage hole and water chute. The valve control device is consisted of a top cover, a backspring and a tire bar thrust structure. The top cover is connected to the top port of water pipe. Moreover, the top cover is lined with sealing bead with tie bar punching hole. The backspring is sleeved in the tie bar at the bottom of the sealing bead. The tire bar thrust structure is fastened to the top of water pipe and matched with the top of the tie bar. The utility model has the advantages of simple structure, easy installation, maintenance and can effectively avoid the freezing and frost cracking of water pipe in winter in the north.

Description

Antifreeze running water pipe

Technical field

The utility model relates to a kind of water supply installation, a kind of more precisely antifreeze running water pipe.

Background technology

Northern area in China, just can freeze by the outer running water pipe of generation chamber the winter of every cold, the phenomenon of bursting by freezing, bring inconvenience for people's use, for anti-antipriming pipe freezes, people take on water pipe ground to solve with the measure that top is twined heat insulating material or added a cover moist closet usually, these methods not only bother but also not attractive in appearance, but also often because temperature is crossed low and ineffective, to this, Chinese patent CN200520018944.8 just discloses a kind of " antifreeze water pipe ", it includes a vertical water pipe of placing and end pipe, end pipe upper port is threaded with the water pipe lower port, the top of water pipe side is provided with delivery port, the bottom is provided with the U-shaped return pipe, the return pipe two-port communicates vertically with water pipe, the upper port of water pipe is provided with upper end cover, be provided with through hole in the middle of the upper end cover, the side of end pipe is provided with water inlet, lower port is provided with bottom end cover, water pipe inside is provided with pull bar, piston-type switch, this pull bar one end passes the through hole of upper end cover, the other end links to each other with piston-type switch, the lower end of piston-type switch is provided with rubber stopper, antifreeze water pipe the latter half is embedded in underground during use, piston-type switch is in normally off, press handrail downwards, switch promptly is in open mode, and this moment, water inlet was communicated with switch, water flows into from water inlet, through switch inside, enter into the top of water pipe inner carrier by return pipe, discharge by delivery port at last, after going off the hand grip, piston just automatically resets under the effect of spring, and still have part water in the body this moment, upwards spurs handrail again and mention piston, just can discharge the water in the body by delivery port, thereby reach antifreeze purpose.Though this water pipe has certain antifreezing effect, operating is very much inconvenience, long pull bar all need be proposed from body, and water can't drain fully, still can occur freezing phenomenon between piston and the body.

The utility model content

At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of antifreeze running water pipe of rational in infrastructure, easy to use, good freezing protection effect.This antifreeze running water pipe need not externally to wrap up insulation layer, can guarantee that outdoor water pipe can normally use winter, prevents its bursting by freezing.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of antifreeze running water pipe, the water pipe that comprises vertical placement, the water pipe lower port is provided with valve, upper port is provided with valve control device, the top of side is provided with delivery port, described valve comprises valve body and spool, valve body is connected with the water pipe lower port, its inward at both ends offers the double cone chamber that is connected, awl places a pull bar in the chamber, on the pull bar compartment of terrain be set with two respectively with valve body upper cone cavity and the following corresponding taper valve core in awl chamber, offer the drain hole of outside oblique conducting on the inwall of upper cone cavity, and on the inwall that staggers with drain hole, offer guiding gutter longitudinally, described valve control device comprises top cover, back-moving spring and pull bar pushing structure, top cover is connected with the water pipe upper port, offers on it and the corresponding through hole in pull bar top, is lined with seal washer in the top cover, offer the pull bar perforation on the sealing packing ring, back-moving spring is sleeved on the pull bar of seal washer below, and pull bar pushing structure is fixed on the water pipe upper end, and matches with the pull bar top.

Described pull bar pushing structure comprises framework and screw rod, framework is rectangular, its bottom is provided with the nut that is used to be sleeved on the water pipe, the top be provided with the water pipe top cover on the corresponding nut that screws of through hole, screw rod with screw nut thread and cooperate, its lower end is to withstanding on the top of pull bar, and the upper end is coated with rocking handle or handwheel.

Described pull bar pushing structure comprises support and cam, and support is fixed on the water pipe, and cam is rack-mount by rotating shaft, and the rotating shaft other end is installed handwheel, and cam face contacts with the top of pull bar all the time.

Described valve is connected with the water pipe lower port by a connector, and it is thicker that this connects first end, and suitable with the valve body external diameter of valve, the other end is thinner, and is suitable with the external diameter of water pipe, and its middle part is the conical surface transition section.

Described taper valve core is fastened on the pull bar by nut, is lined with packing ring between nut and taper valve core, is provided with spacer between two taper valve cores.

Described seal washer is hat, and its bottom has the annular edge edge, and the top is hemispherical, offers the cannelure that is used to snap in seal washer annular edge edge on the inwall of top cover, and top cover is connected with water pipe thread, and the water pipe end is pressed on seal washer in the cannelure.

Described pull bar is set with two clamp nuts in the both sides up and down at seal washer top, and these two clamp nuts clamp sealing with seal washer.

Be provided with O-ring seals between described nut and the seal washer.

Described spring lower end abutment is on the convex edge of pipe inner wall, and the upper end is resisted against on convex edge, projection or the pad of pull bar.

Described spool guiding gutter semicircular in shape on the cross section offers external screw thread on the valve outer surface, the screw rod lower end is tapered.

The utility model installation simple in structure, easy, be convenient to safeguard, be applicable to the outdoor environment of north of china in winter, can avoid effectively that water pipe freezes, the generation of bursting by freezing phenomenon, and also very simple of operation, only needs back and forth rotation crank or handwheel, antifreezing effect stablizing very.

Description of drawings

Fig. 1 is the structural representation of the utility model after burying underground;

Fig. 2 is the structural representation of valve, and wherein Fig. 2 (a) is the schematic appearance of valve, the cross-sectional schematic of Fig. 2 (b) when being in opening for valve, the cross-sectional schematic of Fig. 2 (c) when being in closure state for valve;

Fig. 3 is the structural representation of valve body, the cross-sectional schematic of Fig. 3 (a) valve body, the vertical view of Fig. 3 (b) Fig. 3 (a);

Fig. 4 is the structural representation of valve control device, and wherein Fig. 4 (a) is a schematic appearance, and Fig. 4 (b) is a cross-sectional schematic;

Fig. 5 passes through two cross-sectional schematic that nut links to each other with pull bar up and down for seal washer.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of reference numerals is as follows:

1-water pipe, 2-valve

3-valve control device, 4-delivery port

5 valve bodies, 6-spool

7-connector, 8-pull bar

9-upper conical spool 10-inferior pyramidal spool

11-packing ring, 12-spacer

13-drain hole, 14-guiding gutter

15-seal washer, 16-back-moving spring

17-framework 18-screw nut

19-screw rod, 20-rocking handle

21-top cover

Antifreeze running water pipe as shown in Figure 1, the valve 2 on its water pipe 1 and the water pipe lower port are embedded in the ground next part, and valve 2 is connected with the tap water supply pipe by bend pipe, and the upper end of water pipe 1 is provided with valve control device 3, and the top of side is provided with delivery port 4.

As Fig. 2, shown in Figure 3, valve mainly is made up of valve body 5 and spool 6, valve body 5 is connected with the lower port of water pipe 1 by a connector 7, it is thicker that this connects first end, suitable with the external diameter of valve body 5, the other end is thinner, suitable with the external diameter of water pipe 1, its middle part is the conical surface transition section, offer the external screw thread that is used to connect water supply line on the external surface of valve body 5, inward at both ends offers the double cone chamber that is connected, awl has placed pull bar 8 in the chamber, on the pull bar 8 compartment of terrain be set with two respectively with the valve body upper cone cavity and down the awl corresponding upper conical spool 9 in chamber and inferior pyramidal spool 10, two taper valve cores all be fastened on the pull bar 8 by nut, between nut and taper valve core, be lined with packing ring 11, be provided with spacer 12 between two taper valve cores, offer the drain hole 13 of two outside oblique conductings on the inwall of upper cone cavity symmetrically, and with drain hole stagger 90 the degree inwalls on offer twice guiding gutter 14 longitudinally, guiding gutter 14 semicircular in shape on the cross section.

As Fig. 4, shown in Figure 5, top cover 21 is connected with the water pipe upper port, offer on it and the corresponding through hole in pull bar top, be lined with seal washer 15 in the top cover, the sealing packing ring is hat, its bottom has the annular edge edge, the top is hemispherical, offer the cannelure that is used to snap in seal washer annular edge edge on the inwall of top cover 21, top cover 21 is threaded with water pipe 1, the end of water pipe 1 is pressed on seal washer in the cannelure, the seal washer top offers the pull bar perforation, pull bar 8 is set with two clamp nuts in the both sides up and down at seal washer top, and these two clamp nuts make a concerted effort seal washer is clamped sealing, for further improving sealing performance, also can between nut and seal washer 15, O-ring seals be set, when pull bar 8 moved up and down, the top of seal washer 15 is movement therewith also like this, and can guarantee excellent sealing performance.Back-moving spring 16 is sleeved on the pull bar of seal washer below, and its lower end abutment is on the convex edge of pipe inner wall, and the upper end is resisted against on the pad of pull bar.Framework 17 is rectangular, and the nut sleeve by the bottom is contained on the water pipe, the top have with the water pipe top cover on the corresponding nut 18 that screws of through hole, the lower end of screw rod 19 is to withstanding on the top of pull bar 8, the upper end then is coated with rocking handle 20.

The course of work of the present utility model is: valve is in opening during normal water supply, at this moment upper conical spool 9 and upper cone cavity closing seam, simultaneously with drain hole 13 shutoff, current enter guiding gutter 14 by the space between inferior pyramidal spool 10 and the following awl chamber, enter water pipe 1 again, flow out from delivery port 4 at last, with after finishing again rotation crank 20 it is loosened, pull bar 8 just moves upward in the effect of spring, until inferior pyramidal spool 10 and following awl chamber closing seam, this moment, current were blocked, and stopped to supply water, and upper conical spool 9 is thrown off certain distance with upper cone cavity, drain hole 13 conductings, water in the water pipe 1 is just by among the drain hole 13 infiltration soil, because the oblique from top to bottom setting of drain hole 13, so the water in the water pipe can drain fully, thoroughly avoided the water residue problem, resistance to frost ideal very only needs rotation crank 20 to move downward by screw rod pushing drawing rod 8 when water once more and makes valve be in opening get final product, and the efficient and convenient of ten minutes operates.

The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; for example pull bar pushing structure adopts the form of support and cam; support is fixed on the water pipe; cam is rack-mount by rotating shaft; the rotating shaft other end is installed handwheel; cam face contacts with the top of pull bar all the time; rotation by cam comes pushing drawing rod to move up and down; no matter but on its shape or structure, do any variation; every have identical with a utility model or akin technical scheme, all within its protection domain.

Claims

1, a kind of antifreeze running water pipe, it is characterized in that, the water pipe that comprises vertical placement, the water pipe lower port is provided with valve, upper port is provided with valve control device, the top of side is provided with delivery port, described valve comprises valve body and spool, valve body is connected with the water pipe lower port, its inward at both ends offers the double cone chamber that is connected, and awl places a pull bar in the chamber, on the pull bar compartment of terrain be set with two respectively with valve body upper cone cavity and the corresponding taper valve core in awl chamber down, offer the drain hole of outside oblique conducting on the inwall of upper cone cavity, and on the inwall that staggers with drain hole, offering guiding gutter longitudinally, described valve control device comprises top cover, back-moving spring and pull bar pushing structure, top cover is connected with the water pipe upper port, offer on it and the corresponding through hole in pull bar top, be lined with seal washer in the top cover, offer the pull bar perforation on the sealing packing ring, back-moving spring is sleeved on the pull bar of seal washer below, pull bar pushing structure is fixed on the water pipe upper end, and matches with the pull bar top.

2, antifreeze running water pipe according to claim 1, it is characterized in that, described pull bar pushing structure comprises framework and screw rod, framework is rectangular, its bottom is provided with the nut that is used to be sleeved on the water pipe, the top be provided with the water pipe top cover on the corresponding nut that screws of through hole, screw rod with screw nut thread and cooperate, its lower end is to withstanding on the top of pull bar, and the upper end is coated with rocking handle or handwheel.

3, antifreeze running water pipe according to claim 1 is characterized in that, described pull bar pushing structure comprises support and cam, support is fixed on the water pipe, cam is rack-mount by rotating shaft, and the rotating shaft other end is installed handwheel, and cam face contacts with the top of pull bar all the time.

4, according to claim 2 or 3 described antifreeze running water pipes, it is characterized in that described valve is connected with the water pipe lower port by a connector, it is thicker that this connects first end, and suitable with the valve body external diameter of valve, the other end is thinner, suitable with the external diameter of water pipe, its middle part is the conical surface transition section.

5, antifreeze running water pipe according to claim 4 is characterized in that, described taper valve core is fastened on the pull bar by nut, is lined with packing ring between nut and taper valve core, is provided with spacer between two taper valve cores.

6, antifreeze running water pipe according to claim 5, it is characterized in that, described seal washer is hat, its bottom has the annular edge edge, the top is hemispherical, offer the cannelure that is used to snap in seal washer annular edge edge on the inwall of top cover, top cover is connected with water pipe thread, and the water pipe end is pressed on seal washer in the cannelure.

7, antifreeze running water pipe according to claim 6 is characterized in that, described pull bar is set with two clamp nuts in the both sides up and down at seal washer top, and these two clamp nuts clamp sealing with seal washer.

8, antifreeze running water pipe according to claim 7 is characterized in that, is provided with O-ring seals between described clamp nut and the seal washer.

9, antifreeze running water pipe according to claim 8 is characterized in that, described spring lower end abutment is on the convex edge of pipe inner wall, and the upper end is resisted against on convex edge, projection or the pad of pull bar.