CN216306792U

CN216306792U - Anti-freezing valve and water heater applying same

Info

Publication number: CN216306792U
Application number: CN202121481141.1U
Authority: CN
Inventors: 朱海龙; 沈文权; 吴帅; 魏苗苗
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: 2022-04-15
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 and a valve core assembly arranged in the valve body, the valve core assembly comprises a movable valve core and a static valve core, a water passing port is arranged on the movable valve core, a first opening in fluid communication with a water outlet, a second opening in fluid communication with the water outlet and a third opening in fluid communication with a water discharging port are arranged on the static valve core; and the valve stem, the movable valve core can rotate on the circumference relatively to the static valve core under the action of being driven by the valve stem, 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 water passing part which can be communicated with each port is arranged on the valve core assembly, and the conversion of water supply and drainage functions can be realized only by rotating the valve core under the rotating action of 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 one of the necessary devices in daily life of people and is used for providing safe and comfortable hot water. Common gas water heaters can be classified into forced-ventilated type, flue type and balanced type according to the exhaust mode. In any water heater, when the residual water inside the water heater is solidified under low temperature conditions, the coil pipe inside the water heater is easily frozen and cracked, so that the gas water heater is damaged. Aiming at the problem of frost cracking of low-temperature pipelines, the conventional solutions at present comprise: electric heating method, and manual drainage method.

The electric heating method is that a heating resistor is used for heating the coil as the name suggests; but the electric heating has the defects of potential safety hazard on one hand and electric energy consumption on the other hand. The manual drain valve is to be used as a main body for manual drainage in time, so that the accidental water drainage exists, and the user experience and feeling are influenced.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide an antifreeze valve which is convenient for a user to operate in view of the above prior art.

The second technical problem to be solved by the present invention is to provide a water heater, which is applied with the above-mentioned anti-freezing valve and can make the outlet water temperature constant, 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, a water outlet and a water outlet which are communicated with the accommodating cavity;

the method is characterized in that: also comprises

The valve core assembly is arranged in the valve body and comprises a movable valve core and a static valve core which are kept in a state of being adjacent to each other, a water passing part is arranged on the movable valve core, and a first opening which is communicated with the water inlet in a fluid mode, a second opening which is communicated with the water outlet in a fluid mode and a third opening which is communicated with the water outlet in a fluid mode are arranged on the static valve core; and

and one end of the valve rod penetrates through the valve body to be connected with the valve core assembly, the other end of the valve rod is positioned outside the valve body to serve as a driving end, the movable valve core can rotate in the circumferential direction relative to the static valve core under the action of the driving of the valve rod, so that the position of the water passing port of the movable valve core relative to the static valve core is changed, the water passing part can be communicated with the first opening, the second opening or the second opening and the third opening of the static valve core alternatively, and water inlet or water drainage operation is realized.

In order to better realize that the water passing part of the movable valve core can be alternatively communicated with the first opening and the second opening or the second opening and the third opening of the static valve core, preferably, the first opening and the second opening are arranged in the same linear direction, the straight line of the third opening is the straight line of the first opening and the second opening and the central line of the third opening, which is vertically arranged with the first opening and the second opening, the third opening is arranged on the central line and is arranged at an interval with the first opening and the second opening, the water passing part on the movable valve core is in a transverse T shape and comprises a vertical part corresponding to the straight line of the first opening and the second opening and a transverse part corresponding to the straight line of the third opening, and the transverse part and the third opening are arranged back to back under the water inlet state.

Furthermore, the peripheral wall of the static valve core is provided with a positioning part positioned in the containing cavity of the valve body, and the peripheral wall of the dynamic valve core is provided with a connecting part for connecting the valve rod. Wherein, location portion can make quiet case location in the valve body, and connecting portion can make the movable valve core connected by the valve rod better.

In order to facilitate stable connection of the valve rod and the movable valve element, preferably, the valve rod comprises a driving end located outside the valve body and a connecting end located inside the valve body, and the connecting end is connected with the connecting portion of the movable valve element in a matching manner, so that the valve rod can drive the movable valve element to rotate.

The valve rod has various structures, and from the viewpoint of simple structure, preferably, the connecting end of the valve rod is in a U shape and comprises a first transverse arm, a second transverse arm and a vertical arm, wherein the first transverse arm is matched with the connecting part of the movable valve core, the vertical arm is connected with the driving end of the valve rod, and the vertical arm is connected with the connecting part of the movable valve core.

Furthermore, the positioning part of the static valve core is a positioning column, and the connecting part on the peripheral wall of the dynamic valve core is a first connecting notch for connecting the first transverse arm and a second connecting notch for connecting the second transverse arm.

In order to solve the second technical problem, the utility model also provides a water heater using the anti-freezing valve, which further comprises a water heater body, and the water outlet of the valve body is in fluid communication with the water inlet end of the water heater body.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

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 water passing part which can be communicated with each port is arranged on the valve core assembly, and the conversion of water supply and water discharge functions can be realized only by rotating the valve core under the rotating action of the valve rod, so that 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 an exploded view of FIG. 1;

FIG. 3 is an angled cross-sectional view of a freeze valve according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of another angle of the antifreeze valve in the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a movable valve core in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a stationary valve core in an embodiment of the present invention;

FIG. 7 is a schematic structural view of a freeze valve according to an embodiment of the present invention in a normal state;

FIG. 8 is a cross-sectional view of the dynamic and static valve spools in a normal state in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural view of a frost valve according to an embodiment of the present invention in the event of frost crack prevention in winter;

FIG. 10 is a sectional view of the movable and stationary valve spools in an embodiment of the present invention in winter to prevent frost cracking;

FIG. 11 is a schematic structural diagram of a frost valve installed on a frost valve 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 11, the preferred embodiment of the present invention is shown. The antifreeze valve of the embodiment comprises a valve body 1, an accommodating 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 accommodating cavity 10 are arranged on the valve body 1, and the antifreeze valve further comprises a valve core assembly 2 arranged in the valve body 1, wherein the valve core assembly 2 comprises a movable valve core 21 and a static valve core 22 which are kept in a mutually adjacent state, a water passing part is arranged on the movable valve core 21, and a first opening 221 which is communicated with the water inlet 11 in a fluid manner, a second opening 222 which is communicated with the water outlet 12 in a fluid manner and a third opening 223 which is communicated with the water outlet 13 in a fluid manner are arranged on the static valve core 22; the water supply valve further comprises a valve rod 3, one end of the valve rod 3 penetrates through the valve body 1 to be connected with the valve core assembly 2, the other end of the valve rod 3 is located outside the valve body 1 and serves as a driving end 31, the movable valve core 21 can rotate in the circumferential direction relative to the static valve core 22 under the action of the driving of the valve rod 3, so that the position of a water passing part of the movable valve core 21 relative to the static valve core 22 is changed, the water passing part can be communicated with the first opening 221, the second opening 222 or the second opening 222 and the third opening 223 of the static valve core 22 alternatively, water inlet or water drainage operation is achieved, the purposes of water flow on-off or pipeline emptying and freeze prevention are achieved, in addition, a water inlet 11, a water outlet 12 and a water drainage port 13 are integrated on the valve body 1, openings which can be communicated with the openings are formed in the valve core assembly 2, and under the rotating action of the valve rod 3, the water supply function and the water drainage function can be switched only by rotating the movable valve core 21.

Specifically, in order to better realize that the water passing port of the movable valve element 21 can alternatively communicate with the first opening 221 and the second opening 222 or the second opening 222 and the third opening 223 of the static valve element 22, preferably, the first opening 221 and the second opening 222 of the present embodiment are arranged in the same straight line direction, the straight line where the third opening 223 is located is a central line where the first opening 221 and the second opening 222 are located and are vertically arranged, the third opening 223 is located on the central line and is arranged at an interval with the first opening 221 and the second opening 222, the water passing portion on the movable valve element 21 is in a transverse T shape and comprises a vertical portion 211 corresponding to the straight line where the first opening 221 and the second opening 222 are located and a transverse portion 212 corresponding to the straight line where the third opening 223 is located, in the water inlet state, the transverse portion 212 and the third opening 223 are arranged back to back, the third opening 223 is shielded by the movable valve element 21, and in the water discharge state, the second opening 222 is blocked by the valve body 21, and only the first opening 221 and the third opening 223 communicate with the corresponding water outlet 12 and the corresponding water discharge port 13. In addition, the peripheral wall of the static valve core 22 is provided with a positioning part 220 positioned in the containing cavity 10 of the valve body 1, and the peripheral wall of the movable valve core 21 is provided with a connecting part for connecting the valve rod 3, wherein, the positioning portion 220 can position the static valve core 22 in the valve body 1, and the connecting portion can make the dynamic valve core 21 be better connected by the valve rod 3, the positioning portion 220 of the embodiment is a positioning column arranged on the peripheral wall of the static valve core 22, a positioning opening for positioning the positioning column is arranged in the corresponding valve body 1, the connecting parts are a first connecting notch 213 and a second connecting notch 214 arranged on the peripheral wall of the movable valve core 21, in order to facilitate stable connection between the valve rod 3 and the movable valve element 21, the valve rod 3 has a driving end 31 located outside the valve body 1 and a connecting end 32 located inside the valve body 1, and the connecting end 32 is connected with the connecting portion of the movable valve element 21 in a matching manner, so that the valve rod 3 can drive the movable valve element 21 to rotate. The structure of the valve rod 3 is various, and from the viewpoint of simple structure, the connecting end 32 of the valve rod 3 is in a "U" shape, and includes a first transverse arm 321, a second transverse arm 322 which are matched with the connecting part of the movable valve core 21, and a vertical arm 323 which connects the first transverse arm 321 and the second transverse arm 322, and the vertical arm 323 is connected with the driving end 31 of the valve rod 3. In addition, the movable valve core 21 and the static valve core 22 are both made of ceramics instead of copper ball valve cores or other materials, so that the technical defects that the antifreezing valve is short in service life and easy to be blocked or corroded by hard matters such as water scales and the like are effectively overcome.

Finally, the embodiment also provides a water heater (see fig. 11) using the anti-freezing valve, and further includes a water heater body 4, the water outlet 12 of the valve body 1 is in fluid communication with the water inlet end of the water heater body 4, and the device is only required to be additionally mounted on the water inlet end of the water heater, and other structures of the water heater do not need to be changed, so that 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:

in a normal state (refer to fig. 7 and 8), the arrow of the knob is rotated to the direction pointing to the water outlet 12, at this time, the water inlet 11 is communicated with the water outlet 12 through the first opening 221 and the second opening 222 of the movable valve core 21, the third opening 223 of the static valve core 22 is shielded by the shielding part of the movable valve core 21, so that the water outlet 13 is closed, and water flows into the water heater normally;

when frost cracking is prevented in winter (refer to fig. 9 and 10), the arrow of the knob is rotated to the position pointing to the water outlet 13, at this time, the water outlet 12 is communicated with the water outlet 13 through the second opening 222 and the third opening 223 of the movable valve core 21, the first opening 221 of the static valve core 22 is shielded by the shielding part of the movable valve core 21, so that the water inlet 11 is closed, water flows out of the water outlet 13, and the water drainage and anti-freezing effects are realized.

Claims

1. An antifreeze valve comprising:

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 method is characterized in that: also comprises

The valve core assembly (2) is arranged in the valve body (1) and comprises a movable valve core (21) and a static valve core (22) which are kept in a mutually adjacent state, a water passing part is arranged on the movable valve core (21), and a first opening (221) which is communicated with the water inlet (11) in a fluid mode, a second opening (222) which is communicated with the water outlet (12) in a fluid mode and a third opening (223) which is communicated with the water outlet (13) in a fluid mode are arranged on the static valve core (22); and

the valve comprises a valve rod (3), one end of the valve rod (3) penetrates through the valve body (1) and is connected with the valve core assembly (2), the other end of the valve rod is located outside the valve body (1) and serves as a driving end (31), the movable valve core (21) can rotate in the circumferential direction relative to the static valve core (22) under the action of driving of the valve rod (3), and therefore the position of a water passing port of the movable valve core (21) relative to the static valve core (22) is changed, and therefore the water passing portion can be communicated with a first opening (221), a second opening (222) or a second opening (222) and a third opening (223) of the static valve core (22) alternatively, and water inlet or water drainage operation is achieved.

2. The antifreeze valve according to claim 1, wherein: the first opening (221) and the second opening (222) are arranged in the same linear direction, the straight line of the third opening (223) is the straight line of the first opening (221) and the second opening (222) and is perpendicular to the straight line, the third opening (223) is located on the straight line and is arranged at intervals with the first opening (221) and the second opening (222), the water passing part on the movable valve core (21) is in a transverse T shape and comprises a vertical part (211) corresponding to the straight line of the first opening (221) and the second opening (222) and a transverse part (212) corresponding to the straight line of the third opening (223), and the transverse part (212) and the third opening (223) are arranged back to back in a water inlet state.

3. The antifreeze valve according to claim 2, wherein: the peripheral wall of the static valve core (22) is provided with a positioning part (220) positioned in the accommodating cavity (10) of the valve body (1), and the peripheral wall of the dynamic valve core (21) is provided with a connecting part for connecting the valve rod (3).

4. The antifreeze valve according to claim 3, wherein: the valve rod (3) comprises a driving end (31) located outside the valve body (1) and a connecting end (32) located inside the valve body (1), and the connecting end (32) is connected with a connecting portion of the movable valve core (21) in a matched mode, so that the valve rod (3) can drive the movable valve core (21) to rotate.

5. The antifreeze valve according to claim 4, wherein: the connecting end (32) of the valve rod (3) is U-shaped and comprises a first transverse arm (321) and a second transverse arm (322) which are matched with the connecting part of the movable valve core (21) and a vertical arm (323) which is connected with the first transverse arm (321) and the second transverse arm (322), and the vertical arm (323) is connected with the driving end (31) of the valve rod (3).

6. The antifreeze valve according to claim 5, wherein: the positioning part (220) of the static valve core (22) is a positioning column, and the connecting part on the peripheral wall of the dynamic valve core (21) is a first connecting notch (213) for connecting the first transverse arm (321) and a second connecting notch (214) for connecting the second transverse arm (322).

7. A water heater applying the anti-freezing valve as claimed in any one of claims 1 to 6, further comprising a water heater body (4), wherein the water outlet (12) of the valve body (1) is in fluid communication with the water inlet end of the water heater body (4).