CN215522068U - Anti-freezing valve and water heater applying same - Google Patents

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 valve rod, a valve core and a valve core, wherein the valve core is provided with a first water passing channel and a second water passing channel, and compared with the prior art, the anti-freezing valve has the advantages that: the water inlet, the water outlet and the water outlet are integrated on the valve body, the pipeline which can be communicated with each channel is arranged on the valve core, the switching of water supply and water discharge functions can be realized only by moving the valve core, meanwhile, the design of the two water passing channels enables the motion mode of the valve core to be changed from rotation to movement, gaps generated after the valve core and the sealing ring work for a long time can be well avoided, and water leakage is prevented.

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.

Therefore, the anti-freezing valve for the water heater comprises a valve body and a valve ball, wherein a water inlet, a water outlet, a third outlet and a water outlet are horizontally arranged in the valve body along the clockwise direction, and a plug is arranged at the third outlet; the valve ball is internally provided with a T-shaped first channel, a T-shaped second channel and a T-shaped third channel, the first channel is communicated with the water inlet, the second channel is communicated with the third outlet, the third channel is communicated with the water outlet, the first channel is communicated with the water outlet, the second channel is communicated with the water outlet and the third channel is communicated with the third outlet in the water discharging state, and when the valve ball is used, the valve ball rotates 90 degrees to realize the switching of water inlet and water discharging, but the antifreezing valve has the following defects: when the valve ball rotates for a long time, a gap is easily formed between the valve ball and a sealing ring in the valve body, so that the water leakage phenomenon is caused.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide an antifreeze valve capable of avoiding water leakage in view of the above 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 has the holding chamber in it, set up water inlet, delivery port and the outlet that all is linked together with the holding chamber on the valve body, its characterized in that: also includes:

the valve core is movably arranged in the accommodating cavity and can move to a first position or a second position; and

and one end of the valve rod penetrates through the valve body to be connected with the valve core, and the other end of the valve rod extends out of the valve body to serve as a driving end, wherein the valve core is provided with a first water passing channel and a second water passing channel which are independently arranged, the first water passing channel is communicated with the corresponding water inlet and the corresponding water outlet in a fluid mode under the condition that the valve rod drives the valve core to be at the first position, and the second water passing channel is communicated with the corresponding water outlet and the corresponding water outlet in the condition that the valve rod drives the valve core to be at the second position.

In order to facilitate a user to control the movement of the valve element directly by pulling, preferably, the other end of the valve rod is connected with a pulling part for a finger to pass through, one end of the valve rod is provided with at least two hook parts which can be hooked on the valve element, and correspondingly, the valve element is provided with a caulking groove for hooking each hook part.

In order to realize that the water inlet of the valve body can be directly used as a water inlet joint, preferably, the water inlet of the valve body is directly used as a water inlet joint, the water inlet and the water outlet are in an inverted L shape, the water inlet is positioned at the vertical end of the inverted L shape, the water outlet is positioned at the transverse end of the inverted L shape, and the water outlet is positioned between the water inlet and the water outlet. The water inlet joint of the water heater integrates the function of a drainage antifreezing valve, and the valve has two functions, namely the water inlet joint and the drainage antifreezing valve.

In order to adapt to the design that the water inlet of the valve body can be directly used as a water inlet joint, preferably, the first water channel is closer to the water outlet than the second water channel, the first water channel comprises a first water passing port corresponding to the water inlet and a second water passing port corresponding to the water outlet, and the second water channel comprises a third water passing port corresponding to the water outlet and a fourth water passing port corresponding to the water outlet.

In order to avoid the water leakage phenomenon between the first water inlet channel and the second water passing channel and the corresponding water inlet, water outlet and water outlet due to the untight matching, preferably, a first sealing ring and a second sealing ring are respectively arranged on the mouth parts of the first water passing port and the second water passing port of the first water passing channel, and correspondingly, a third sealing ring and a fourth sealing ring are respectively arranged on the third water passing port and the fourth water passing port of the second water passing channel.

Further, the first water passing channel is positioned above the second water passing channel. Because the first water passing channel of the anti-freezing valve is positioned above the second water passing channel, the valve core of the anti-freezing valve only has two gears for movement, namely a water inlet gear when the valve core is pushed to the lowest part and a water discharging anti-freezing gear when the valve core is lifted to the highest part, and the structure is simple and firm.

In order to solve the second technical problem, the utility model further provides a water heater using the anti-freezing valve, which comprises a casing and a heat exchanger in the casing, wherein the heat exchanger comprises a water inlet pipe and a water outlet pipe, and the water heater is characterized in that: the valve body passes through delivery port lug connection is in on the inlet tube, the water inlet of valve body directly connects as the water inlet.

Compared with the prior art, the utility model has the advantages that: the water inlet, the water outlet and the water outlet are integrated on the valve body, and the valve core is provided with the pipeline which can be communicated with each channel, so that the conversion of water supply and drainage functions can be realized only by moving the valve core, 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 structural diagram of a frost valve for preventing frost cracking in winter according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of a frost valve according to an embodiment of the present invention in a normal use state;

FIG. 4 is a sectional view of the antifreeze valve of the embodiment of the present invention in a normal use state;

FIG. 5 is a sectional view of the antifreeze valve of the embodiment of the present invention in a drainage state for preventing frost cracking in winter;

FIG. 6 is a schematic view of an angle of the valve core according to an embodiment of the present invention;

FIG. 7 is a schematic view of another angle of the valve core in an embodiment of the present invention;

FIG. 8 is a cross-sectional view of FIG. 5;

fig. 9 is a schematic structural diagram of a gas water heater with an anti-freezing valve installed thereon according to an embodiment of the utility model.

Detailed Description

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

As shown in FIGS. 1 to 9, the preferred embodiment of the present invention is shown. The antifreezing valve of the embodiment comprises a valve body 1, a containing cavity 10 is arranged in the valve body 1, a water inlet 11, a water outlet 12 and a water outlet 13 which are all communicated with the containing cavity 10 are arranged on the valve body 1, the antifreezing valve further comprises a valve core 2 which can be movably arranged in the containing cavity 10, the valve core 2 can be moved to a first position or a second position, and a valve rod 3 one end of which passes through the valve body 1 and the valve core 2 is connected, while the other end of the valve rod 3 extends out of the valve body 1 to be used as a driving end, wherein the valve core 2 is provided with a first water passing channel 21 and a second water passing channel 22 which are mutually and independently arranged, the first water passing channel 21 is communicated with the corresponding water inlet 11 and the corresponding water outlet 12 when the valve rod 3 drives the valve core 2 to be at the first position, and the second water passing channel 22 is communicated with the corresponding water outlet 12 and the water outlet 13 when the valve rod 3 drives the valve core 2 to be at the second position, through integrated water inlet 11, delivery port 12 and outlet 13 on valve body 1, and set up the pipeline that can communicate with each passageway on case 2, only need to remove case 2 and can realize the conversion of water supply and drainage function, automatic control for realizing gas instantaneous water heater provides the realization mode of an anti-icing valve, and simultaneously, the design of two water channels makes case 2's motion mode can change into the removal by the rotation, can avoid taking place better that case 2 and sealing ring produce the clearance after working for a long time, prevent that water from leaking outward.

Specifically, in order to facilitate a user to control the movement of the valve element 2 directly by pulling, the other end of the valve rod 3 is connected with a pulling part 31 through which a finger can pass, one end of the valve rod 3 is provided with at least two hook parts 32 which can be hooked on the valve element 2, correspondingly, the valve element 2 is provided with a caulking groove 23 through which each hook part 32 is hooked, and the valve rod 3 is connected with the valve element 2 through connection of each hook part 32 and the caulking groove 23.

In addition, in order to realize that the water inlet 11 of the valve body 1 can be directly used as a water inlet joint, the water inlet 11 of the valve body 1 is directly used as a water inlet joint, the water inlet 11 and the water outlet 13 are in an inverted L shape, the water inlet 11 is positioned at the vertical end of the inverted L shape, the water outlet 13 is positioned at the transverse end of the inverted L shape, and the water outlet 12 is positioned between the water inlet 11 and the water outlet 13. The water inlet joint of the water heater integrates the function of a drainage antifreezing valve, and the valve has two functions, namely the water inlet joint and the drainage antifreezing valve. In order to adapt to the design that the water inlet 11 of the valve body 1 can be directly used as a water inlet joint, preferably, the first water passage 21 is closer to the water outlet 12 than the second water passage 22, the first water passage 21 includes a first water passing opening 211 corresponding to the water inlet 11 and a second water passing opening 212 corresponding to the water outlet 12, and the second water passage 22 includes a third water passing opening 221 corresponding to the water outlet 12 and a fourth water passing opening 222 corresponding to the water outlet 13. Because the first water channel 21 of the antifreezing valve is closer to the water outlet 12 than the second water channel 22, namely, is positioned above the second water channel 22, the valve core 2 of the antifreezing valve only has two gears for movement, namely, the lowest gear is a water inlet gear, and the highest gear is a water discharge antifreezing gear, the structure is simple and firm. In addition, in order to avoid water leakage caused by loose fitting between the first and second water channels 22 and the corresponding water inlets 11, outlets 12 and outlets 13, the first and second water passing ports 211 and 212 of the first water channel 21 are respectively provided with a first sealing ring 21a and a second sealing ring 21b at the mouth thereof, and correspondingly, the third and fourth water passing ports 221 and 222 of the second water channel 22 are respectively provided with a third sealing ring 22a and a fourth sealing ring 22 b.

The embodiment also provides a water heater (see fig. 9) using the anti-freezing valve, which comprises a machine shell 4 and a heat exchanger 41 in the machine shell 4, wherein the heat exchanger 41 comprises a water inlet pipe 42 and a water outlet pipe 43, the valve body 1 is directly connected to the water inlet pipe 42 through the water outlet 12, the water inlet 11 of the valve body 1 is directly used as a water inlet joint, and the device is only required to be additionally installed on a cold water inlet pipeline of the water heater during installation without changing other structures of the water heater.

In summary, the antifreeze valve has the following use process:

a. when the gas water heater needs to normally operate, the key with the lifting part 31 is pushed to move downwards, so that the valve core 2 is driven to move to the bottommost part of the accommodating cavity 10, at the moment, the first water passing channel 21 of the valve core 2 is in fluid communication with the corresponding water inlet 11 and the corresponding water outlet 12, water flows into the water heater from the water inlet pipe 42, and the water heater normally operates, and the state is shown in fig. 4;

b. when the gas water heater needs to drain water (drain the water in the water heater to prevent frost damage), firstly, a pressure release valve (see fig. 5) on a water outlet connector of the water heater is opened, then a key with a lifting part 31 is pulled upwards to drive a valve core 2 to move upwards, at the moment, a second water channel 22 of the valve core 2 is communicated with a corresponding water outlet 12 and a water outlet 13, at the moment, the water inlet 12 and the water outlet 12 of the water heater are both communicated with the atmosphere, the water in the water heater flows out along the water flow direction in fig. 2, the water drainage action is completed, and therefore the water heater is prevented from being frozen damage, and the state is shown in fig. 1.

Claims (6)

1. An antifreeze valve comprising:

valve body (1), holding chamber (10) have in it, set up water inlet (11), delivery port (12) and outlet (13) that all are linked together with holding chamber (10) on valve body (1), its characterized in that: also includes:

the valve core (2) is movably arranged in the accommodating cavity (10) and can move to a first position or a second position; and

one end of the valve rod (3) penetrates through the valve body (1) to be connected with the valve core (2), and the other end of the valve rod extends out of the valve body (1) to serve as a driving end, wherein the valve core (2) is provided with a first water passing channel (21) and a second water passing channel (22) which are independently arranged, the first water passing channel (21) is communicated with the corresponding water inlet (11) and the corresponding water outlet (12) in a fluid mode under the condition that the valve rod (3) drives the valve core (2) to be located at the first position, and the second water passing channel (22) is communicated with the corresponding water outlet (12) and the corresponding water outlet (13) under the condition that the valve rod (3) drives the valve core (2) to be located at the second position.

2. The antifreeze valve according to claim 1, wherein: the other end of the valve rod (3) is connected with a lifting part (31) for fingers to pass through, one end of the valve rod (3) is provided with at least two hook parts (32) which can be hooked on the valve core (2), and correspondingly, the valve core (2) is provided with a caulking groove (23) for hooking each hook part (32).

3. The antifreeze valve according to claim 2, wherein: the water inlet (11) of the valve body (1) is directly used as a water inlet joint, the water inlet (11) and the water outlet (13) are in an inverted L shape, the water inlet (11) is positioned at the vertical end of the inverted L shape, the water outlet (13) is positioned at the transverse end of the inverted L shape, and the water outlet (12) is positioned between the water inlet (11) and the water outlet (13).

4. The antifreeze valve according to claim 3, wherein: the first water channel (21) is closer to the water outlet (12) than the second water channel (22), the first water channel (21) comprises a first water passing opening (211) corresponding to the water inlet (11) and a second water passing opening (212) corresponding to the water outlet (12), and the second water channel (22) comprises a third water passing opening (221) corresponding to the water outlet (12) and a fourth water passing opening (222) corresponding to the water outlet (13).

5. The antifreeze valve according to claim 4, wherein: the first water passing port (211) and the second water passing port (212) of the first water passing channel (21) are respectively provided with a first sealing ring (21a) and a second sealing ring (21b), and correspondingly, the third water passing port (221) and the fourth water passing port (222) of the second water passing channel (22) are respectively provided with a third sealing ring (22a) and a fourth sealing ring (22 b).

6. A water heater applying the anti-freezing valve as claimed in any one of claims 1 to 5, comprising a housing (4), a heat exchanger (41) in the housing (4), wherein the heat exchanger (41) comprises a water inlet pipe (42) and a water outlet pipe (43), and is characterized in that: the valve body (1) is directly connected to the water inlet pipe (42) through the water outlet (12), and the water inlet (11) of the valve body (1) is directly used as a water inlet joint.

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