CN211121413U

CN211121413U - Water meter capable of preventing central heating water from flowing back

Info

Publication number: CN211121413U
Application number: CN201922281452.2U
Authority: CN
Inventors: 徐一民
Original assignee: Wuhan Di Yuan Watch Co ltd
Current assignee: Wuhan Di Yuan Watch Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-28
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a prevent heating installation water reflux water gauge, including base and anti-return mechanism, one side fixedly connected with water gauge main part of base, the one end of base is provided with the water receiving mouth, the one end of base is put through with anti-return mechanism's water inlet mutually, first play water cavity has been seted up to anti-return mechanism's inside, the one end switch-on in first play water cavity has anti-return chamber, the sealed lid is installed through the fixing bolt screw thread in the upper end in anti-return chamber, just the bottom surface fixedly connected with axle sleeve of sealed lid, compression spring and valve gap connection are passed through to the interior bottom surface of axle sleeve, one side in anti-return chamber articulates there is the valve plate, anti-return chamber has the second to go out the water cavity through first delivery port switch-on, just the second goes out the one end in water cavity and has seted. The utility model discloses an utilize rivers pressure and cooperate the use of valve gap and valve plate, the effectual problem of solving heating installation water reflux pollution has improved the practicality when device uses.

Description

Water meter capable of preventing central heating water from flowing back

Technical Field

The utility model relates to a water gauge technical field specifically is a prevent heating installation water reflux water gauge.

Background

A water meter is a kind of measuring instrument, and is mostly an accumulated flow measurement of water. The flow meter is generally classified into a positive displacement water meter and a velocity water meter, and calculates the volume of water flowing through a tap water pipe by using the direct mechanical movement process of a movable wall volume measuring chamber or the action of the flow velocity of water on a wing wheel.

In the house of supplying warm air water and installation cold water type water gauge, after the installation uses the heat exchanger of warm air water, if the pipeline of heat exchanger takes place to break, then the outer warm air water of pipeline can pass through the water gauge and the interior running water direct contact of pipeline, because the water pressure in the warm air pipeline of flowing through is generally higher than the water pressure of running water, the warm air water of injection pushes back the water top of running water pipeline, and go into more lateral conduits in cluster, the water in the warm air pipeline can flow through the water gauge constantly, lead to the hot water in the warm air pipeline and running water to take place the mixed flow, cause water pollution. Therefore, it is desirable to provide a water meter that prevents the backflow of warm air water.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent heating installation water reflux water gauge through the use that utilizes rivers pressure and cooperation valve gap and valve plate, the effectual problem of solving heating installation water reflux pollution has improved the practicality when device uses to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent heating installation water backward flow water gauge, is including base and anti-return mechanism, one side fixedly connected with water gauge main part of base, the one end of base is provided with the water receiving mouth, the one end of base is put through with anti-return mechanism's water inlet mutually, first play water cavity has been seted up to anti-return mechanism's inside, the one end switch-on in first play water cavity has anti-return chamber, the upper end in anti-return chamber has sealed lid through fixing bolt threaded mounting, just the bottom surface fixedly connected with axle sleeve of sealed lid, the interior bottom surface of axle sleeve passes through compression spring and valve gap connection, one side in anti-return chamber articulates there is the valve plate, just one side in anti-return chamber still is provided with the limiting plate, just anti-return chamber has the second to go out the water cavity through first delivery port switch-on, just the second goes out the one end.

Preferably, the first water outlet cavity is in an arc shape with a downward bending, and two ends of the first water outlet cavity are both in an opening structure.

Preferably, the sealing cover is in a disc shape, and a rubber sealing ring is bonded to the bottom surface of the sealing cover.

Preferably, the valve plate is provided in a disc shape, and the thickness of the valve plate is set to 1 mm.

Preferably, the water outlet end of the first water outlet cavity is lower in level than the water inlet end of the second water outlet cavity.

Preferably, the second water outlet cavity is in an arc shape bending downwards, the caliber of the first water outlet is smaller than that of the second water outlet, and the first water outlet is arranged in the middle of the second water outlet cavity.

Compared with the prior art, the beneficial effects of the utility model are that: through utilizing rivers pressure and the use of cooperation valve gap and valve plate, the effectual problem of solving heating installation water reflux pollution has improved the practicality when the device uses.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the anti-backflow mechanism of the present invention during normal operation;

fig. 3 is a schematic view of the cross-sectional structure of the backflow prevention mechanism of the present invention.

In the figure: 1. a base; 2. a water receiving port; 3. a water meter main body; 4. a backflow prevention mechanism; 401. a water inlet; 402. a first water outlet cavity; 403. an anti-reflux cavity; 404. a first water outlet; 405. a second water outlet cavity; 406. a second water outlet; 407. a sealing cover; 408. a rubber seal ring; 409. fixing the bolt; 410. a shaft sleeve; 411. a compression spring; 412. a valve cover; 413. a valve plate; 414. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a prevent warm braw water gauge, including base 1 and anti-return mechanism 4, one side fixedly connected with water gauge main part 3 of base 1, the one end of base 1 is provided with water receiving port 2, the one end of base 1 communicates with the water inlet 401 of anti-return mechanism 4, first play water cavity 402 has been seted up to the inside of anti-return mechanism 4, the one end of first play water cavity 402 is communicated has anti-return chamber 403, the upper end of anti-return chamber 403 is through fixing bolt 409 threaded mounting sealing cover 407, and the bottom surface fixedly connected with axle sleeve 410 of sealing cover 407, the interior bottom surface of axle sleeve 410 is connected with valve cover 412 through compression spring 411, one side of anti-return chamber 403 articulates there is the valve plate 413, and one side of anti-return chamber 403 still is provided with limiting plate 414, and anti-return chamber has second play water cavity 405 through first delivery port 404 intercommunication, and the second delivery port 406 has been seted up to the one.

In actual implementation: the sealing cover 407 is in a circular plate shape, a rubber sealing ring 408 is glued to the bottom surface of the sealing cover 407, the valve plate 413 is in a circular plate shape, the thickness of the valve plate 413 is set to be 1mm and used for preventing water from flowing back, the first water outlet cavity 402 is in a downward bent arc shape, two ends of the first water outlet cavity 402 are both in an opening structure, the horizontal height of the water outlet end of the first water outlet cavity 402 is lower than that of the water inlet end of the second water outlet cavity 405, the second water outlet cavity 405 is in a downward bent arc shape, the caliber of the first water outlet 404 is smaller than that of the second water outlet 406, and the first water outlet 404 is arranged in the middle of the second water outlet cavity 405, so that water can be effectively utilized to perform normal flowing and backflow prevention of water flow.

The working principle is explained as follows: when in actual use, appear during the condition when heating water wants the backward flow to pass through the water gauge, because the design that first delivery port 404 is less relatively, tentatively improve the difficulty that heating water carries out the backward flow from the second delivery port, simultaneously because backflow pressure can cause valve plate 413 to fall down, and limiting plate 414 can support and block valve plate 413, can effectual prevention heating water's backward flow, if valve plate 413 damages, also can utilize valve gap 412 to restrict heating water's backward flow, when the condition of heating water backward flow does not appear, this moment because water pressure can make valve gap 412 and valve plate 413 open, rivers can normally circulate through the water gauge.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent heating installation water reflux water gauge, includes base (1) and anti-return mechanism (4), its characterized in that: one side fixedly connected with water gauge main part (3) of base (1), the one end of base (1) is provided with water receiving port (2), the one end of base (1) is put through with water inlet (401) of anti-return mechanism (4) mutually, first play water cavity (402) has been seted up to the inside of anti-return mechanism (4), the one end switch-on of first play water cavity (402) has anti-return chamber (403), the upper end of anti-return chamber (403) is installed sealed lid (407) through fixing bolt (409) screw thread, just the bottom surface fixedly connected with axle sleeve (410) of sealed lid (407), the interior bottom surface of axle sleeve (410) is connected with valve gap (412) through compression spring (411), one side of anti-return chamber (403) articulates there is valve plate (413), just one side of anti-return chamber (403) still is provided with limiting plate (414), anti-return chamber (403) has second play water cavity (405) through first delivery port (404) switch-on, and one end of the second water outlet cavity (405) is provided with a second water outlet (406).

2. A heating water backflow prevention water meter according to claim 1, characterized in that: the first water outlet cavity (402) is arranged in an arc shape with a downward bending, and two ends of the first water outlet cavity (402) are both arranged in an opening structure.

3. A heating water backflow prevention water meter according to claim 1, characterized in that: the sealing cover (407) is in a disc shape, and a rubber sealing ring (408) is bonded to the bottom surface of the sealing cover (407).

4. A heating water backflow prevention water meter according to claim 1, characterized in that: the valve plate (413) is arranged to be disc-shaped, and the thickness of the valve plate (413) is arranged to be 1 mm.

5. A heating water backflow prevention water meter according to claim 1, characterized in that: the water outlet end of the first water outlet cavity (402) is lower than the water inlet end of the second water outlet cavity (405).

6. A heating water backflow prevention water meter according to claim 1, characterized in that: the second water outlet cavity (405) is in an arc shape bending downwards, the caliber of the first water outlet (404) is smaller than that of the second water outlet (406), and the first water outlet (404) is arranged in the middle of the second water outlet cavity (405).