CN216555490U

CN216555490U - Anti-freezing valve and water heater applying same

Info

Publication number: CN216555490U
Application number: CN202121479259.0U
Authority: CN
Inventors: 王雲涛; 于雅平
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-05-17
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to an anti-freezing valve and a water heater using the same, wherein the anti-freezing valve comprises a valve body, a containing cavity is arranged in the valve body, and a water inlet channel, a water outlet channel and a water drainage channel which are communicated with the containing cavity are arranged on the valve body, and the anti-freezing valve is characterized in that: the water inlet and the water outlet can be opened and closed correspondingly, the water inlet and the water outlet also comprise a valve rod, one end of the valve rod extends out of the valve body and serves as a driving end, and the other end of the valve rod penetrates through the valve body and is hinged with a first connecting rod mechanism and a second connecting rod mechanism through a shaft. The water inlet channel, the water outlet channel and the water drainage channel are integrated on the valve body, and the first connecting rod mechanism connected with the first switch and the second connecting rod mechanism connected with the second switch are arranged, so that the switching of water supply and water drainage functions can be realized only by rotating the valve rod.

Description

Anti-freezing valve and water heater applying same

Technical Field

The utility model relates to a valve for a water heater, in particular to an anti-freezing valve and a water heater applying the anti-freezing valve.

Background

The gas water heater is communicated with the outdoor environment through the smoke exhaust pipe, and cold air easily enters the water heater along the smoke exhaust pipe when the outdoor temperature is lower than zero centigrade in cold winter, so that the weak part of a water path pipeline of the water heater is frozen and cracked, and most of the gas water heaters are additionally provided with the electric heating anti-freezing cracking device, so that a certain anti-freezing function is achieved. The electric heating anti-frost-crack device can normally start to work only when the water heater is in a power-on state, and the situation that the electric heating device cannot be started and a water heater pipeline is frost-cracked due to the fact that some users have the habit of pulling out a power plug of the water heater after using the water heater, or have power failure at home, or a newly-decorated house does not use power failure for a long time and the like can be caused. The water channel of the water heater is usually a normally open valve at the water inlet end and a normally closed valve at the water outlet end, so that if a user does not find that the water inlet valve is closed in time, the whole machine leaks water, and property loss and safety problems such as water soaking on the floor, electric leakage and the like are caused.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide an antifreezing valve which is convenient for users to operate in view of the above-mentioned prior art.

The second technical problem to be solved by the present invention is to provide a water heater using the above mentioned frost valve, in view of the above mentioned prior art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the antifreezing valve comprises:

the valve body is internally provided with an accommodating cavity, and the valve body is provided with a water inlet channel, a water outlet channel and a water drainage channel which are communicated with the accommodating cavity;

the method is characterized in that:

the water inlet channel is provided with a water inlet for supplying water to the water outlet channel;

the drainage channel is provided with a drainage port for the water of the water outlet channel to flow out;

the first switch is arranged in the accommodating cavity and can open and close the water inlet;

the second switch is arranged in the accommodating cavity and can open and close the water outlet;

the valve rod, one end stretches out outside the valve body as the drive end, and the other end passes the valve body articulates there are first link mechanism and second link mechanism, the end of first link mechanism is equipped with first switch, the end of second link mechanism is equipped with the second switch, first switch and second switch can be along with the rotation of valve rod and alternative selection is in the open or closed state.

Further, first link mechanism includes first crank and first connecting rod, the lower extreme of first connecting rod articulates through the first round pin axle parallel with the axle first switch, and second link mechanism includes second crank and second connecting rod, the lower extreme of second connecting rod articulates through the second round pin axle parallel with the axle second switch to realize: in a normal state, the first switch opens the water inlet, the second switch closes the water discharge opening, and the first switch closes the water inlet and the second switch opens the water discharge opening when the driving end of the valve stem is rotated.

In order to avoid that the first switch is forced to close the water inlet when the water pressure is too high, it is preferable that the valve body is provided with a retaining member at the upstream of the water inlet to keep the first switch in an open state along the water flowing direction.

From the viewpoint of structural simplicity, it is preferable that the holder is a magnetic ring, and a water through hole through which water flows is provided in the center of the holder.

In order to achieve that the water outlet is only started to be opened by the second switch when the water inlet is closed by the first switch, the water outlet is preferably located between the water inlet and the water outlet, and the second switch comprises a narrowing section which can extend into the water outlet and a horn section which extends from the narrowing section towards the direction far away from the water outlet. The narrowing section enables the second switch to open the water outlet and a part of time difference exists between the water inlet and the water outlet when the first switch is closed, and the water outlet is opened by the second switch only when the first switch completely closes the water inlet.

In order to prevent the valve rod from rotating due to misoperation, preferably, the driving end of the valve rod is provided with a cavity with one open end, and the cavity is internally provided with:

an actuating member movably disposed within the chamber to enable rotation of the valve stem only when water is to be drained; and

and the elastic piece is arranged in the cavity, so that the actuating piece has the tendency of returning to the open end of the cavity.

Further, the actuating member comprises an actuating head, a recess which is matched with the actuating head is correspondingly formed in the cavity, the elastic member is a compression spring, one end of the compression spring is connected in the cavity, and the other end of the compression spring is connected to the actuating head, so that the actuating member has a tendency of returning to the open end of the cavity. The elastic element in the cavity can be compressed only by pressing the actuating element by hand, the actuating head of the actuating element can be matched with the notch, and the first connecting rod mechanism and the second connecting rod mechanism can be driven to rotate together by rotating the driving end of the valve rod.

In order to solve the second technical problem, the utility model further provides a water heater with the anti-freezing valve, which comprises a casing, and is characterized in that: the valve body is connected to the water inlet connector of the casing.

Compared with the prior art, the utility model has the advantages that: the water inlet channel, the water outlet channel and the water drainage channel are integrated on the valve body, and the first connecting rod mechanism connected with the first switch and the second connecting rod mechanism connected with the second switch are arranged, so that the switching of water supply and water drainage functions can be realized only by rotating the valve rod, and an implementation mode of the anti-freezing valve is provided for realizing the automatic control of the gas rapid water heater.

Drawings

FIG. 1 is a schematic view of a freeze valve according to an embodiment of the present invention;

FIG. 2 is a sectional view of the antifreeze valve of the embodiment of the present invention in a normal use state;

FIG. 3 is a sectional view of the antifreeze valve of the embodiment of the present invention in the antifreeze state;

FIG. 4 is a cross-sectional view of a valve stem in an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in FIGS. 1 to 4, the preferred embodiment of the present invention is shown. The anti-freezing valve of the embodiment comprises a valve body 1, wherein the valve body 1 is internally provided with a containing cavity 10, the valve body 1 is also provided with a water inlet channel 11, a water outlet channel 12 and a water outlet channel 13 which are communicated with the containing cavity 10, the water inlet channel 11 is provided with a water inlet 110 for supplying water to the water outlet channel 12, the water outlet channel 13 is provided with a water outlet 130 for discharging water of the water outlet channel 12, the containing cavity 10 is internally provided with a first switch 2 capable of opening and closing the water inlet 110 and a second switch 3 capable of opening and closing the water outlet 130, the anti-freezing valve further comprises a valve rod 4, one end of the valve rod 4 extends out of the valve body 1 to be used as a driving end, the other end of the valve rod 4 is hinged with a first connecting rod mechanism 5 and a second connecting rod mechanism 6 through the valve body 1, the tail end of the first connecting rod mechanism 5 is provided with the first switch 2, the tail end of the second connecting rod mechanism 6 is provided with the second switch 3, the first switch 2 and the second switch 3 can be alternatively selected to be in an open or closed state along with the rotation of the valve rod 4, the valve body 1 is integrated with the water inlet channel 11, the water outlet channel 12 and the water discharge channel 13, and is provided with the first link mechanism 5 connected with the first switch 2 and the second link mechanism 6 connected with the second switch 3, so that the switching of water supply and water discharge functions can be realized only by rotating the valve rod 4.

In particular, the first linkage 5 comprises a first crank 51 and a first link 52, the lower end of the first link 52 being hinged to the first switch 2 by a first pin 50 parallel to the shaft 40, while the second linkage 6 comprises a second crank 61 and a second link 62, the lower end of the second link 62 being hinged to the second switch 3 by a second pin 60 parallel to the shaft 40, so as to achieve: in order to prevent the water pressure from being excessively increased by pressing the first switch 2 to close the water inlet 110 in a normal state in which the first switch 2 opens the water inlet 110 and the second switch 3 closes the water outlet 130 while the first switch 2 closes the water inlet 110 and the second switch 3 opens the water outlet 130 when the driving end of the valve stem 4 is rotated, it is preferable that the valve body 1 is provided with a holder 7 for keeping the first switch 2 in an open state at an upstream of the water inlet 110 in a water flowing direction. The holder 7 of the present embodiment is a magnetic ring, and the holder 7 has a water through hole 71 in the center thereof through which water flows. In addition, in order to realize that the water outlets of the first linkage mechanism 5 and the second linkage mechanism 6 are positioned between the water inlet 110 and the water outlet 130, the second switch 3 comprises a narrowing section 31 which can extend into the water outlet 130 and a horn section 32 which extends from the narrowing section 31 to the direction far away from the water outlet, the narrowing section 31 causes a part of time difference between the opening of the water outlet 130 by the second switch 3 and the closing of the water inlet 110 by the first switch 2, and the water outlet 130 starts to be opened by the second switch 3 only when the water inlet 110 is completely closed by the first switch 2. In addition, in order to prevent the valve rod 4 from being rotated due to misoperation, the driving end of the valve rod 4 is provided with a cavity 8 with one open end, an actuating member 81 is arranged in the cavity 8, the actuating member 81 is movably arranged in the cavity 8 and can enable the valve rod 4 to actuate the rotation of the valve rod 4 only when water needs to be drained, and an elastic member 82 is arranged in the cavity 8, the elastic member 82 enables the actuating member 81 to have the tendency of returning to the open end of the cavity 8, the actuating member 81 of the embodiment comprises an actuating head, correspondingly, a notch 80 matched with the actuating head is arranged in the cavity 8, the elastic member 82 is a compression spring, one end of the compression spring is connected in the cavity 8, and the other end of the compression spring is connected on the actuating head, so that the actuating member 81 has the tendency of returning to the open end of the cavity 8 (refer to fig. 4). Finally, the embodiment also provides a water heater with the anti-freezing valve, which comprises a casing, wherein the valve body 1 is connected to a water inlet connector of the casing, and the device is only required to be additionally arranged on a cold water inlet pipeline of the water heater during installation, so that other structures of the water heater are not required to be changed, and the installation and the use are convenient.

In summary, the waterway path of the antifreeze valve in the water inlet and water discharge states is as follows: wherein the water outlet is upward and is positioned between the water inlet 110 and the water outlet 130, and the three form an inverted T shape;

in a normal state (refer to fig. 2), the first switch 2 is in a state of opening the water inlet 110, and the second switch 3 is in a state of closing the water outlet 130, allowing the water heater to be filled with water;

when frost cracking is prevented in winter (refer to fig. 3), the driving end of the valve rod 4 is rotated, the first switch 2 and the second switch 3 are subjected to 'one pull' and 'one push' actions due to the design of the first connecting mechanism and the second connecting rod mechanism 6, the first switch 2 closes the water inlet 110, the second switch 3 opens the water outlet 130, a part of time difference exists between the second switch 3 opening the water outlet 130 and the water inlet 110 being closed by the first switch 2 due to the narrowing section 31 of the second switch 3, and therefore when the first switch 2 completely closes the water inlet 110, the second switch 3 starts to open the water outlet 130 to drain water.

Claims

1. An antifreeze valve comprising:

the water-saving valve comprises a valve body (1), wherein a containing cavity (10) is formed in the valve body (1), and a water inlet channel (11), a water outlet channel (12) and a water drainage channel (13) which are communicated with the containing cavity (10) are formed in the valve body (1);

the method is characterized in that:

the water inlet channel (11) is provided with a water inlet (110) for supplying water to the water outlet channel (12);

the drainage channel (13) is provided with a drainage port (130) for the water of the water outlet channel (12) to flow out;

the first switch (2) is arranged in the accommodating cavity (10) and can open and close the water inlet (110);

the second switch (3) is arranged in the accommodating cavity (10) and can open and close the water outlet (130);

the valve rod (4), one end stretches out outside valve body (1) as the drive end, and the other end passes valve body (1) articulates there are first link mechanism (5) and second link mechanism (6), the end of first link mechanism (5) is equipped with first switch (2), the end of second link mechanism (6) is equipped with second switch (3), first switch (2) and second switch (3) can be along with the rotation of valve rod (4) and select alternatively to be in and open or closed state.

2. The antifreeze valve according to claim 1, wherein: the first linkage (5) comprises a first crank (51) and a first connecting rod (52), the lower end of the first connecting rod (52) is hinged to the first switch (2) through a first pin (50) parallel to the shaft (40), and the second linkage (6) comprises a second crank (61) and a second connecting rod (62), the lower end of the second connecting rod (62) is hinged to the second switch (3) through a second pin (60) parallel to the shaft (40), so that: in a normal state, the first switch (2) opens the water inlet (110), the second switch (3) closes the water discharge opening (130), and the first switch (2) closes the water inlet (110) and the second switch (3) opens the water discharge opening (130) when the driving end of the valve stem (4) is rotated.

3. The antifreeze valve according to claim 2, wherein: the valve body (1) is provided with a retainer (7) which keeps the first switch (2) in an open state at the upstream of the water inlet (110) along the water flowing direction.

4. The antifreeze valve according to claim 3, wherein: the holder (7) is a magnetic ring, and a water through hole (71) for water to flow through is formed in the center of the holder (7).

5. The antifreeze valve according to any one of claims 1 to 4, wherein: the water outlet is positioned between the water inlet (110) and the water outlet (130), and the second switch (3) comprises a narrowing section (31) capable of extending into the water outlet (130) and a horn section (32) extending from the narrowing section (31) in the direction far away from the water outlet.

6. The antifreeze valve according to claim 5, wherein: the drive end of valve rod (4) has open cavity (8) of one end, be provided with in cavity (8):

an actuating member (81) movably disposed within the chamber (8) to enable rotation of the valve stem (4) only when water is to be drained from the valve stem (4); and

and the elastic element (82) is arranged in the cavity (8) and enables the actuating element (81) to have the tendency of returning to the open end of the cavity (8).

7. The antifreeze valve according to claim 6, wherein: the actuating member (81) comprises an actuating head, a recess (80) which is matched with the actuating head is correspondingly arranged in the cavity (8), the elastic member (82) is a compression spring, one end of the compression spring is connected in the cavity (8), and the other end of the compression spring is connected on the actuating head, so that the actuating member (81) has the tendency of returning to the open end of the cavity (8).

8. A water heater applying the antifreezing valve as defined in any one of claims 1 to 7, comprising a housing, wherein: the valve body (1) is connected to the water inlet connector of the casing.