CN210194753U

CN210194753U - Anti-freezing device for tap water

Info

Publication number: CN210194753U
Application number: CN201920879194.5U
Authority: CN
Inventors: Qinggang Li; 李庆钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-03-27
Anticipated expiration: 2029-06-12

Abstract

The embodiment of the utility model discloses running water freeze-proof device relates to valve technical field that prevents frostbite, which comprises a housin, flexible post, connecting rod and last piston, the inside water storage chamber that is provided with of casing, the upper portion of casing is provided with the delivery port, the middle part of casing is provided with the water inlet, the bottom of casing is provided with the exhaust hole, flexible post, connecting rod and last piston all set up in the water storage intracavity, flexible post is hollow body and can follows upper and lower direction flexible, the lower extreme of flexible post is equipped with the opening, the opening of flexible post is sealed fixed with the inboard bottom plate of casing, and the exhaust hole is located the opening of flexible post, the lower extreme of connecting rod is connected with the top of flexible post, the upper end of connecting rod is connected with the bottom of last piston, it is located the upside of water inlet to go up the piston. The utility model discloses a running water freeze-proof device when avoiding outlet conduit to freeze, need not let out the water in the outlet conduit and flow, has avoided the waste of water resource.

Description

Anti-freezing device for tap water

Technical Field

The embodiment of the utility model provides a valve technical field, concretely relates to running water freeze-proof device prevents frostbite.

Background

Tap water is used in most rural areas at present, so that the sanitation of drinking water is guaranteed, and convenience is brought to the masses. However, in winter, especially in north, the temperature of the air drops below zero, and when the valve is closed, the water in the water outlet pipeline freezes, even the water pipe freezes. The thawing by adopting the modes of hot water pouring and fire baking can only solve the problem of one time, and the thawing in the present day and the thawing in the tomorrow are very annoying to users.

In order to avoid freezing, an anti-freezing valve is mostly adopted. The existing anti-freezing valve is provided with a water inlet, a water outlet and a drainage port. When the valve rod is rotated to enable the valve plug to move downwards, the drain port can be blocked, and water can be normally supplied; when the valve rod is rotated to make the valve plug move upwards, the water inlet can be blocked, the water source is cut off, and at the moment, water in the water outlet pipeline connected with the water outlet end is discharged from the water outlet under the action of gravity, so that the antifreezing effect is achieved. The water in the water outlet pipeline is discharged from the drainage port every time the valve is opened or closed, so that the problem of water resource waste exists.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a running water freeze-proof device to solve among the prior art because the problem of the extravagant water resource that the drainage of bleeder leads to.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to a first aspect of an embodiment of the present invention, a tap water anti-freezing device comprises a housing, a telescopic column, a connecting rod and an upper piston;

a water storage cavity is arranged in the shell, a water outlet connected with a water outlet pipeline is arranged at the upper part of the shell, a water inlet connected with a valve is arranged at the middle part of the shell, an exhaust hole is arranged at the bottom of the shell, and the telescopic column, the connecting rod and the upper piston are all arranged in the water storage cavity;

the telescopic column is a hollow body and can stretch in the vertical direction, an opening is formed in the lower end of the telescopic column, the opening of the telescopic column is fixed with the bottom of the shell in a sealing mode, the exhaust hole is located in the opening of the telescopic column, the lower end of the connecting rod is connected with the top of the telescopic column, the upper end of the connecting rod is connected with the bottom of the upper piston, the upper piston is located on the upper side of the water inlet, the upper piston is matched with the inner wall of the water storage cavity, and the upper piston can slide in the vertical direction.

Further, the upper piston and the water storage cavity are sealed through a sealing ring.

Further, an exhaust pipe is arranged at the exhaust hole.

Furthermore, the telescopic column comprises a telescopic pipe and a top cover, and the top cover is hermetically fixed at the upper end of the telescopic pipe.

Further, the extension tube and the top cover are integrally formed.

Further, the shell comprises a barrel body and a barrel cover, a wide opening is formed in the bottom of the barrel body, the barrel cover is hermetically fixed on the wide opening of the barrel body, the exhaust hole is formed in the middle of the barrel cover, and the opening of the telescopic column is fixed on the wide opening of the barrel body through extrusion of the barrel cover.

Further, the barrel cover and the barrel body are fixed through threads.

Further, the tap water anti-freezing device further comprises a lower piston, the lower piston is arranged in the water storage cavity, the top of the lower piston is connected with the lower end of the connecting rod, and the bottom of the lower piston is connected with the top of the telescopic column.

The embodiment of the utility model provides a have following advantage:

according to the tap water anti-freezing device, when water is normally supplied, water flow enters the water storage cavity from the valve through the water inlet, the upper piston is forced to move upwards, the upper piston drives the telescopic column to extend through the connecting rod, the space of the water storage cavity is occupied, and when the upper piston moves to the position above the water outlet, the water flow flows into the water outlet pipeline from the water outlet for users to use; when cutting off the water source, the water in outlet conduit and/or the water storage intracavity oppresses flexible post and does the compression motion under the effect of dead weight, and the space grow in the water storage intracavity for the water that stores up in the outlet conduit can flow into the water storage chamber, avoids outlet conduit to freeze. Compared with the existing anti-freezing valve, the water in the water outlet pipeline does not need to be drained, and the waste of water resources is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a tap water anti-freezing device provided in embodiment 1 of the present invention (during normal water supply);

fig. 2 is a schematic structural diagram of a tap water anti-freezing device provided in embodiment 1 of the present invention (when water source is cut off).

In the figure: 1-shell, 2-telescopic column, 3-connecting rod, 4-upper piston, 5-main tap water pipe, 6-valve, 7-water outlet pipe, 8-lower piston, 11-water storage cavity, 12-water outlet, 13-water inlet, 14-exhaust hole, 15-exhaust pipe, 16-barrel body and 17-barrel cover.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Example 1

As shown in fig. 1 and 2, embodiment 1 provides a tap water anti-freezing device including a housing 1, a telescopic column 2, a connecting rod 3, and an upper piston 4.

The inside of the shell 1 is provided with a water storage cavity 11, the upper part of the shell 1 is provided with a water outlet 12 connected with a water outlet pipeline, the middle part of the shell 1 is provided with a water inlet 13 connected with the valve 6, the bottom of the shell 1 is provided with an exhaust hole 14, and an exhaust pipe 15 is arranged at the exhaust hole 14. The telescopic column 2, the connecting rod 3 and the upper piston 4 are all arranged in the water storage cavity 11. The telescopic column 2 is a hollow body and can stretch out and draw back along the up-down direction, the lower end of the telescopic column 2 is provided with an opening, the opening of the telescopic column 2 is sealed and fixed with the bottom of the shell 1, and the exhaust hole 14 is positioned in the opening of the telescopic column 2. The lower extreme of connecting rod 3 is connected with the top of flexible post 2, and the upper end of connecting rod 3 is connected with the bottom of last piston 4, and last piston 4 is located the upside of water inlet 13. The upper piston 4 is matched with the inner wall of the water storage cavity 11, and the upper piston 4 can slide along the up-and-down direction.

When water is normally supplied, the upper piston 4 is positioned above the water outlet 12, and the telescopic column 2 is in an extension state; when the water source is cut off, the upper piston 4 is positioned between the water outlet 12 and the water inlet 13, and the telescopic column 2 is in a compressed state.

When the tap water anti-freezing device of the embodiment is used, when water is normally supplied, namely the valve 6 is opened, water flow enters the water storage cavity 11 from the valve 6 through the water inlet 13, the volume of the water is continuously increased along with the continuous entering of the water storage cavity 11, the upper piston 4 is forced to move upwards, the upper piston 4 drives the telescopic column 2 to extend through the connecting rod 3, the space of the water storage cavity 11 is occupied, and when the upper piston 4 moves to the position above the water outlet 12, the water flow flows into a water outlet pipeline from the water outlet 12 for a user to use; when cutting off the water source, when closing valve 6 promptly, the water in outlet conduit and/or the water storage chamber 11 is under the effect of dead weight, oppresses flexible post 2 and does the compression motion, and when flexible post 2 compressed, the space grow in the water storage chamber 11 for the water that stores up in the outlet conduit can flow into water storage chamber 11, avoids the outlet conduit to freeze. Compared with the existing anti-freezing valve, the water in the water outlet pipeline does not need to be drained, and the waste of water resources is avoided.

In order to prevent the device from freezing, the device can be buried underground and is positioned at the same depth with the main tap water pipeline 5, the free end of the exhaust pipe 15 is arranged above the ground surface, ventilation is realized, and the telescopic column 2 is ensured to be smoothly telescopic. The existing antifreezing valve needs to discharge, so that the antifreezing measure of burying underground can not be adopted.

In this embodiment, the upper piston 4 and the water storage cavity 11 may be sealed by a sealing ring or may not be sealed. When the sealing ring is used for sealing, the friction force of the sealing ring is increased, and in order to enable the telescopic column 2 to be compressed smoothly, the upper piston 4 can be made of a material with high density, such as copper or stainless steel, and the friction force between the upper piston 4 and the water storage cavity 11 is overcome by the aid of the upper piston 4 and the gravity of water. When adopting not sealed, because last piston 4 is the complex relation with water storage chamber 11, even if can not prevent completely that water from the clearance between last piston 4 and the water storage chamber 11 from permeating through, but when opening valve 6, under the effect of rivers, still can make last piston 4 go upward, make flexible post 2 extension, crowd the space that occupies water storage chamber 11, for the 11 retaining headspace in follow-up water storage chamber, the space of reserving is the volume difference of two states of the extension of flexible post 2 and compression.

In this embodiment, the telescopic column 2 comprises a telescopic tube and a top cover, the top cover is fixed on the upper end of the telescopic tube in a sealing manner, and the telescopic tube and the top cover are integrally formed.

In order to avoid the situation that the upper piston 4 is clamped when sliding in the shell 1, the tap water anti-freezing device is further provided with a lower piston 8, the lower piston 8 is arranged in the water storage cavity 11, the top of the lower piston 8 is connected with the lower end of the connecting rod 3, and the bottom of the lower piston 8 is connected with the top of the telescopic column 2. The lower piston 8 and the upper piston 4 can be the same or different; and the lower piston 8 and the water storage cavity 11 do not need to be sealed.

For the convenience of installing telescopic column 2, connecting rod 3 and upper piston 4 and lower piston 8, casing 1 includes ladle body 16 and bung 17, and the bottom of ladle body 16 is equipped with the wide-mouth, and bung 17 seals the wide-mouth that is fixed in ladle body 16, and

bung

17 and 16 threaded fastening of ladle body, the exhaust hole setting is in the centre of bung, and telescopic column's opening is fixed in the wide-mouth of ladle body through the bung extrusion, and telescopic column has silica gel to make, through the extrusion of bung and ladle body, can effectively seal.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A tap water anti-freezing device is characterized by comprising a shell (1), a telescopic column (2), a connecting rod (3) and an upper piston (4);

a water storage cavity (11) is arranged in the shell (1), a water outlet (12) connected with a water outlet pipeline is arranged at the upper part of the shell (1), a water inlet (13) connected with a valve is arranged at the middle part of the shell (1), an exhaust hole (14) is arranged at the bottom of the shell (1), and the telescopic column (2), the connecting rod (3) and the upper piston (4) are all arranged in the water storage cavity (11);

the telescopic column (2) is a hollow body and can stretch in the vertical direction, an opening is formed in the lower end of the telescopic column (2), the opening of the telescopic column (2) is sealed and fixed with the bottom of the shell (1), the exhaust hole (14) is located in the opening of the telescopic column (2), the lower end of the connecting rod (3) is connected with the top of the telescopic column (2), the upper end of the connecting rod (3) is connected with the bottom of the upper piston (4), the upper piston (4) is located on the upper side of the water inlet (13), the upper piston (4) is matched with the inner wall of the water storage cavity (11), and the upper piston (4) can slide in the vertical direction.

2. Tap water anti-freezing device according to claim 1, wherein the upper piston (4) is sealed from the water storage chamber (11) by a sealing ring.

3. Tap water anti-freeze according to claim 1, characterised in that an exhaust pipe (15) is provided at the exhaust hole (14).

4. Tap water anti-freezing device according to claim 1, characterized in that the telescopic column (2) comprises a telescopic tube and a top cover, the top cover is sealingly fixed to the upper end of the telescopic tube.

5. The tap water antifreeze apparatus of claim 4, wherein said extension tube and said top cover are integrally formed.

6. The tap water anti-freezing device according to claim 1, wherein the housing (1) comprises a barrel body (16) and a barrel cover (17), a wide opening is formed in the bottom of the barrel body (16), the barrel cover (17) is hermetically fixed to the wide opening of the barrel body (16), the vent hole (14) is formed in the middle of the barrel cover (17), and the opening of the telescopic column (2) is fixed to the wide opening of the barrel body (16) through extrusion of the barrel cover (17).

7. Tap water anti-freezing device according to claim 6, characterized in that the barrel cover (17) is screwed to the barrel body (16).

8. The tap water anti-freezing device according to claim 1, further comprising a lower piston (8), wherein the lower piston (8) is disposed in the water storage cavity (11), the top of the lower piston (8) is connected with the lower end of the connecting rod (3), and the bottom of the lower piston (8) is connected with the top of the telescopic column (2).