CN216078418U - 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 core which can be rotatably arranged in an accommodating cavity and can rotate to a first position or a second position so as to realize switching of water inlet and water discharge; valve rod, this valve rod one end is passed the valve body and is linked to each other with the case, and the other end is located the valve body and regards as the drive end, its characterized in that outward: the valve core is a cam body which can rotate with the valve rod integrally, wherein the valve core is provided with a first water passing channel and a second water passing channel which are communicated with each other, and the first water passing channel is positioned at a position closer to the axis (X) of the valve rod than the second water passing channel. The water inlet, the water outlet and the water outlet are integrated on the valve body, and the limiting part is arranged, so that the switching of water inlet and water discharge can be completed under the action of one turn or reverse rotation of a user, and the misoperation of the user can be 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. In order to solve the above problems, for example, in the utility model patent of china with patent number ZL201510398012.9 (publication number CN104976771B), a water inlet pipe, a water outlet pipe, a bypass pipe, a water outlet pipe and a U-shaped pipe are arranged on a valve body, which is communicated with a valve cavity; the other end of the U-shaped pipe is communicated with the water outlet pipe, and the water inlet pipe, the water outlet pipe, the bypass pipe, the water outlet pipe and the communication ports of the U-shaped pipe and the valve cavity are positioned on the same circle; the valve core is provided with a first pipeline and a second pipeline which are communicated with each other; when the first pipeline conducts the water inlet pipe and the water outlet pipe, the second pipeline is closed by the valve body; when the bypass pipe and the U-shaped pipe are communicated through the first pipeline, the second pipeline is communicated with the drain pipe, although the anti-freezing device can realize the switching of water supply and drainage functions only by rotating the valve core, no related structure is provided for prompting a user to rotate to the position or prevent mistaken touch when the valve core is rotated, and therefore the prior anti-freezing device needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide an anti-freeze valve with a safety device for preventing the user from misoperation 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 frost valve comprises

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

the valve core can be rotatably arranged in the accommodating cavity and can rotate to a first position or a second position so as to realize the switching of water inlet and water discharge;

one end of the valve rod penetrates through the valve body and is connected with the valve core, and the other end of the valve rod is positioned outside the valve body and serves as a driving end;

the method is characterized in that:

the valve core is a cam body which can rotate integrally with the valve rod, wherein the valve core is provided with a first water passing channel and a second water passing channel which are communicated with each other, the first water passing channel is positioned at a position closer to the axis (X) of the valve rod than the second water passing channel, and the first water passing channel is in fluid communication with the water inlet and the second water passing channel is in fluid communication with the water outlet so as to be in a water inlet state when the valve core is at the first position; correspondingly, a position of the valve body, which is adjacent to the water outlet, is also provided with a limiting piece, the limiting piece is matched with the valve core, and the second water passing channel is limited to be communicated with the water outlet so as to be in a water discharging state only when the second water passing channel rotates to a position along with the valve core.

In order to realize the antifreezing valve, it is preferable that the limiting members are limiting members disposed adjacent to the water outlet and in pairs, each limiting member has a narrow portion corresponding to the second water passage of the valve core, and forms a step at a boundary with an upper portion thereof, and the second water passage of the valve core is assembled to have a tendency of always facing one side of the step. The second water passing channels of the valve cores are limited by the limiting blocks arranged in pairs and can be in a state of being stably communicated with the water outlet only when being completely accommodated in the narrow part.

Further, a return spring is arranged between the valve body and each limiting block, and the return spring enables the second water passing channel of the valve core to be assembled to have a trend of always facing one side of the step. When the second water channel of the valve core rotates to the water outlet along with the valve rod, the return spring needs to be compressed and is completely limited at the narrow part of the paired limiting blocks, the second water channel can be completely communicated with the water outlet, otherwise, the second water channel can be pushed back to the first position under the reset action of the return spring, and the function of preventing the child lock from being touched by mistake is achieved.

From the viewpoint of simple structure, the cross section of the limiting block is preferably in an inverted 'L' shape.

In order to solve the second technical problem, the present invention further provides a water heater with the above anti-freezing valve, including a housing, and 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, the water outlet and the water outlet are integrated on the valve body, the limiting piece is arranged, the switching of water inlet and water discharge can be completed under the action of one-turn or reverse-turn of a user, the misoperation of the user can be prevented, and an implementation mode of the anti-freezing valve is provided for realizing the automatic control of the gas quick water heater.

Drawings

FIG. 1 is a sectional view of a freeze valve according to an embodiment of the present invention in a normal use state;

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

FIG. 3 is a cross-sectional view of the second water passage of FIG. 2 in a state fully received in the narrow portion of the stopper;

fig. 4 is a sectional view showing that the second water passage of the cartridge is installed to have a tendency to always face one side of the step in the 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, 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 communicated with the containing cavity 10 are arranged on the valve body 1, the anti-freezing valve further comprises a valve core 2 which can be rotatably arranged in the containing cavity 10 and can rotate to a first position or a second position so as to realize the switching of water inlet and water outlet, a valve rod 3 with one end passing through the valve body 1 and the valve core 2 and the other end positioned outside the valve body 1 as a driving, the valve core 2 is a cam body which can rotate integrally with the valve rod 3, wherein the valve core 2 is provided with a first water passing channel 21 and a second water passing channel 22 which are mutually communicated, the first water passing channel 21 is positioned at a position closer to the axis (X) of the valve rod 3 than the second water passing channel 22, and the first water passing channel 21 is in fluid communication with the water inlet 11 and the second water passing channel 22 is in fluid communication with the water outlet 12 under the state that the valve core 2 is at the first position, so as to be in a water inlet state; correspondingly, a position of the valve body 1 adjacent to the water outlet 13 is further provided with a limiting piece which is matched with the valve core 2 to limit the second water passing channel 22 to be communicated with the water outlet 13 to be in a water discharging state only by rotating in place along with the valve core 2. Through integrated inhalant canal, exhalant canal and drainage channel on valve body 1 to be provided with the locating part, only need the action of user "commentaries on classics" or "reversal" can accomplish the switching of intaking and drainage and can prevent user's maloperation.

Specifically, in order to realize the freeze-proof valve capable of preventing the misoperation of a user, the limiting members of the present embodiment are the limiting members 4 arranged in pairs adjacent to the water discharge port 13, each limiting member 4 has a narrow portion 41 corresponding to the second water passage 22 of the valve core 2, and a step 42 is formed at the boundary with the upper portion thereof, and the second water passage 22 of the valve core 2 is assembled to have a tendency of always facing one side of the step 42, the limiting members 4 arranged in pairs limit the second water passage 22 of the valve core 2 to be in a state of stably communicating with the water discharge port 13 only when being completely accommodated in the narrow portion 41, and the valve body 1 and each limiting member 4 are provided with the return spring 5 therebetween, the return spring 5 enables the second water passage 22 of the valve core 2 to be assembled to have a tendency of always facing one side of the step 42, and the return spring 5 needs to be compressed when the second water passage 22 of the valve core 2 rotates to the water discharge port 13 following the valve rod 3, And is completely limited in the narrow portion 41 of the pair of limit blocks 4, so as to be able to completely communicate with the water outlet 13, otherwise, the pair of limit blocks is "pushed back" to the first position again under the reset action of the reset spring 5, so as to perform the function of preventing the child lock from being touched by mistake (refer to fig. 3 and 4 in particular). From the perspective of simple structure, the section of the limiting block 4 is in an inverted L shape. Finally, the embodiment also provides a water heater applying the anti-freezing valve, which comprises a casing, and the valve body 1 is connected to a water inlet connector of the casing.

In summary, the operation of the antifreeze valve of the present embodiment is as follows:

in a normal state (as shown in fig. 1), the valve core 2 is in a first position, the first water passage 21 is in fluid communication with the water inlet 11, and the second water passage 22 is in fluid communication with the water outlet 12, so as to be in a water inlet state;

when frost cracking is prevented in winter (as shown in fig. 2), a user can apply a rotating force to the outer end of the valve rod 3, for example, 90 degrees, because the first water passing channel 21 is located at a position closer to the axis (X) of the valve rod 3 than the second water passing channel 22, when the second water passing channel 22 of the valve core 2 rotates to the water outlet 13 along with the valve rod 3, the second water passing channel needs to compress the return spring 5 and is completely limited at the narrow part 41 of the paired limit blocks 4, so that the second water passing channel can be completely communicated with the water outlet 13, otherwise, the second water passing channel 22 is pushed back to the first position under the reset action of the return spring 5, and further, the function of preventing the user from touching the child lock by mistake is achieved.

Claims (5)

1. An antifreeze valve comprises

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

the valve core (2) can be rotatably arranged in the accommodating cavity (10) and can rotate to a first position or a second position so as to realize the switching of water inlet and water discharge;

one end of the valve rod (3) penetrates through the valve body (1) and is connected with the valve core (2), and the other end of the valve rod (3) is positioned outside the valve body (1) and serves as a driving end;

the method is characterized in that:

the valve core (2) is a cam body capable of rotating integrally with the valve rod (3), wherein the valve core (2) is provided with a first water passing channel (21) and a second water passing channel (22) which are communicated with each other, the first water passing channel (21) is positioned at a position closer to the axis (X) of the valve rod (3) than the second water passing channel (22), and when the valve core (2) is in a first position, the first water passing channel (21) is in fluid communication with the water inlet (11) and the second water passing channel (22) is in fluid communication with the water outlet (12) so as to be in a water inlet state; correspondingly, a position, adjacent to the water outlet (13), of the valve body (1) is also provided with a limiting piece, the limiting piece is matched with the valve core (2), and the second water passing channel (22) is limited to be communicated with the water outlet (13) to be in a water discharging state only when rotating in place along with the valve core (2).

2. The antifreeze valve according to claim 1, wherein: the limiting pieces are limiting pieces (4) which are arranged in pairs and are adjacent to the water outlet (13), each limiting piece (4) is provided with a narrow part (41) corresponding to the second water passing channel (22) of the valve core (2), a step (42) is formed at the junction of the upper part of the limiting piece and the second water passing channel (22) of the valve core (2), and the second water passing channel (22) of the valve core (2) is assembled to have a trend of always facing one side of the step (42).

3. The antifreeze valve according to claim 2, wherein: a return spring (5) is arranged between the valve body (1) and each limiting block (4), and the return spring (5) enables the second water channel (22) of the valve core (2) to be assembled to have a trend of always facing one side of the step (42).

4. The antifreeze valve according to any one of claims 2 to 3, wherein: the section of the limiting block (4) is inverted L-shaped.

5. A water heater applying the anti-freezing valve as claimed in any one of claims 1 to 4, comprising a housing, characterized in that: the valve body (1) is connected to the water inlet connector of the casing.

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