CN215522089U

CN215522089U - Anti-freezing valve and water heater applying same

Info

Publication number: CN215522089U
Application number: CN202121479307.6U
Authority: CN
Inventors: 于雅平; 魏苗苗; 吴帅; 王雲涛
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: 2022-01-14
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: 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: the water outlet opening and closing device also comprises an intermediate opening and closing mechanism, wherein the intermediate opening and closing mechanism can perform reciprocating linear motion along the axis direction of the channel where the water outlet is located, so that the water inlet opening and the water outlet opening can be selectively switched, and compared with the prior art, the water outlet opening and closing device has the advantages that: the water inlet, the water outlet and the water outlet are integrated on the valve body, and the intermediate switch mechanism is arranged, so that the switching of water supply and drainage functions can be realized only by moving the intermediate switch mechanism.

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, a water outlet and a water outlet which are communicated with the accommodating cavity; the method is characterized in that: the water outlet opening device further comprises an intermediate opening and closing mechanism, and the intermediate opening and closing mechanism can perform reciprocating linear motion along the axis direction of the channel where the water outlet is located, so that the water inlet opening device can be selectively switched between the states of opening the water inlet and opening the water outlet.

In order to realize that the intermediate opening and closing mechanism can perform reciprocating linear motion along the axial direction of the channel in which the water outlet is located, so as to be capable of selectively switching between the states of opening the water inlet and opening the water outlet, from the viewpoint of simple structure, the intermediate opening and closing mechanism preferably comprises:

the first switch piece is arranged in the water inlet channel corresponding to the water inlet and is used for opening and closing the water inlet;

the elastic piece is arranged in the water inlet channel, so that the first switch piece always has a tendency of opening the water inlet;

the second switch piece is arranged in the drainage channel corresponding to the drainage port and used for opening and closing the drainage port; the actuating part is arranged in the accommodating cavity and used for driving the first switch piece to close the water inlet; and

the inner end of the valve rod penetrates through the valve body to be connected with the actuating part and the second switch piece, the outer end of the valve rod extends out of the valve body to serve as a driving end, and the actuating part can drive the first switch piece to close the water inlet along with the movement of the valve rod, so that the water outlet operation is realized.

The second switch member is directly connected with the inner end of the valve rod, so that the second switch member can directly open or close the water outlet along with the valve rod, and meanwhile, the actuating part also moves along with the valve rod, so that the opening or closing state opposite to the opening or closing state of the water outlet is realized, and the water inlet and the water outlet can be selectively switched between the states of opening the water inlet and opening the water outlet.

In order to avoid the phenomenon that the valve rod moves excessively along with the second switch piece, so that the water outlet and the water inlet are opened simultaneously, preferably, the actuating part slides synchronously with the valve rod, a position between the actuating part and the second switch piece of the accommodating cavity of the valve body is provided with a limiting piece, and the limiting piece is used for limiting the moving distance of the valve rod and the actuating part, so that the water outlet can be opened under the condition that the water inlet is closed under the actuation of the first switch piece through the actuating part. If the valve rod moves excessively along with the second switch piece, the first switch piece is actuated by being separated from the actuating part, the first switch piece can be restored to the state of opening the water inlet under the action of the elastic piece, at the moment, the second switch piece also opens the water outlet, and the limiting piece is used for preventing the valve rod from moving excessively along with the second switch piece, so that the water outlet can be opened under the state that the water inlet is closed under the action of the first switch piece actuated by the actuating part.

In order to achieve communication between the water outlet and the water outlet, preferably, the limiting member is provided with an installation hole, the inner end of the valve rod passes through the installation hole and then is directly connected with the second switch member, and the limiting member is further provided with at least one circulation hole in the peripheral area of the installation hole, so that the water outlet is communicated with the water outlet.

Further, the part of the actuating part corresponding to the water inlet is provided with a guide inclined plane, and the guide inclined plane gradually inclines from the water inlet to the water outlet along the axial direction of the channel where the water outlet is located. Because the guide inclined plane is gradually inclined from the water inlet to the water outlet, when the valve rod moves along the direction of the channel where the water outlet is located along with the second switch piece, the first switch piece can be pressed by the guide inclined plane, and the water inlet is closed.

The structure of first switch spare can have the multiple, considers from simple structure's angle, preferably, first switch spare is including closing the shutoff portion of water inlet and from this shutoff portion central authorities and along the body of rod that inhalant canal axis direction extends, the head of the body of rod with direction inclined plane looks butt, the periphery of the body of rod have to inhalant canal extends and the first peripheral part that offsets with it, first outer peripheral part along circumference interval seted up with the first water hole of crossing of water inlet intercommunication, the one end of elastic component is connected first outer peripheral part and the other end is then connected on the internal perisporium of inhalant canal, make first switch spare have the trend of opening the water inlet all the time.

In order to realize that the first switch member can be better arranged in the water inlet channel, preferably, the periphery of the rod body adjacent to the head of the rod body is also provided with a second peripheral part extending towards the water inlet channel, and the second peripheral part is circumferentially provided with second water passing holes communicated with the water inlet and the first water passing holes at intervals. The second peripheral part is used for supporting the first switch piece, and in addition, the second water passing holes formed in the second peripheral part along the circumferential direction are communicated with the water inlet and the first water passing holes, so that the water inlet and the water outlet can be communicated.

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, the water outlet and the water outlet are integrated on the valve body, and the intermediate switch mechanism is arranged, so that the switching of water supply and water discharge functions can be realized only by moving the intermediate switch mechanism, 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 cross-sectional view at an angle of FIG. 1;

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

fig. 4 is a sectional view of the anti-freeze valve according to the embodiment of the present invention in a state of being anti-frozen in winter.

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 antifreezing valve of the embodiment comprises a valve body 1, wherein an accommodating cavity 10 is arranged in the valve body, 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 antifreezing valve further comprises an intermediate switch mechanism 2, wherein the intermediate switch mechanism 2 can perform reciprocating linear motion along the axis direction of a channel where the water outlet 13 is located, so that the states of opening the water inlet 11 and opening the water outlet 13 can be switched selectively, the water inlet 11, the water outlet 12 and the water outlet 13 are integrated on the valve body 1, the intermediate switch mechanism 2 is arranged, and the water supply and drainage functions can be switched by only moving the intermediate switch mechanism 2.

Specifically, in order to realize that the intermediate opening and closing mechanism 2 can perform reciprocating linear motion along the axial direction of the channel in which the water discharge opening 13 is located, so as to be capable of selectively switching between the states of opening the water inlet 11 and opening the water discharge opening 13, from the viewpoint of simple structure, it is preferable that the intermediate opening and closing mechanism 2 comprises a first opening and closing member 21 disposed in the water inlet channel 110 corresponding to the water inlet 11 for opening and closing the water inlet 11, an elastic member 22 disposed in the water inlet channel 110 for making the first opening and closing member 21 always have a tendency of opening the water inlet 11, a second opening and closing member 23 disposed in the water discharge channel 130 corresponding to the water discharge opening 13 for opening and closing the water discharge opening 13, an actuating portion 24 disposed in the accommodating chamber 10 for driving the first opening and closing the water inlet 11, and finally a valve rod 25, wherein an inner end 251 of the valve rod 25 penetrates through the valve body 1 to be connected with the actuating portion 24 and the second opening and closing member 23, the outer end 252 extends out of the valve body 1 as a driving end, and the actuating portion 24 can drive the first switch member 21 to close the water inlet 11 along with the movement of the valve rod 25, so as to realize the water outlet operation. Since the second switch member 23 is directly connected to the inner end 251 of the valve rod 25, the second switch member 23 can directly open or close the drain opening 13 along with the valve rod 25, and at the same time, the actuating portion 24 also moves along with the valve rod 25 to achieve an open or closed state opposite to the open or closed state of the drain opening 13, thereby selectively switching between the states of opening the water inlet 11 and opening the drain opening 13. In addition, in order to avoid the phenomenon that the valve rod 25 moves excessively along with the second switch member 23, so that the water outlet 13 and the water inlet 11 are opened simultaneously, preferably, the actuating portion 24 slides synchronously with the valve rod 25, the accommodating cavity 10 of the valve body 1 is provided with a limiting member 3 at a position between the actuating portion 24 and the second switch member 23, and the limiting member 3 is used for limiting the moving distance of the valve rod 25 and the actuating portion 24, so that the water outlet 12 can be opened in a state that the water inlet 11 is closed under the actuation of the first switch member 21 through the actuating portion 24. Since the valve rod 25 is excessively moved along with the second switch member 23, if the first switch member 21 is actuated by the actuating portion 24, the first switch member 21 is returned to the state of opening the water inlet 11 by the elastic member 22, and at this time, the second switch member 23 also opens the water outlet 13, and the limiting member 3 is used to prevent the valve rod 25 from excessively moving along with the second switch member 23, so that the water outlet 12 can be opened in the state of closing the water inlet 11 by the actuation of the first switch member 21 by the actuating portion 24. From the viewpoint of simple structure, in order to communicate the water outlet 12 with the water outlet 13, in addition to the mounting hole 31 formed in the limiting member 3, the inner end 251 of the valve rod 25 is directly connected to the second switch member 23 after passing through the mounting hole 31, and the limiting member 3 is further formed with at least one flow hole 32 in the peripheral region of the mounting hole 31, which enables the water outlet 12 to communicate with the water outlet 13.

The portion of the actuating portion 24 corresponding to the inlet port 11 in this embodiment has a guiding inclined surface 241, the guiding inclined surface 241 gradually inclines from the inlet port 11 to the drain port 13 along the axial direction of the passageway of the drain port 13, and the guiding inclined surface 241 gradually inclines from the inlet port 11 to the drain port 13, so that when the valve rod 25 moves along the passageway of the drain port 13 along with the second switch member 23, the first switch member 21 is pressed by the guiding inclined surface 241, thereby closing the inlet port 11. The first switch 21 may have a plurality of structures, and from the viewpoint of simple structure, the first switch 21 includes a blocking portion 211 capable of closing the water inlet 11 and a rod 212 extending from the center of the blocking portion 211 along the axial direction of the water inlet channel 110, the head of the rod 212 abuts against the guiding inclined surface 241, the periphery of the rod 212 has a first outer peripheral portion 213 extending towards and abutting against the water inlet channel 110, the first outer peripheral portion 213 is circumferentially provided with first water passing holes 2131 communicated with the water inlet 11 at intervals, one end of the elastic member 22 is connected to the first outer peripheral portion 213, and the other end is connected to the inner peripheral wall of the water inlet channel 110, so that the first switch 21 always has a tendency of opening the water inlet 11. In order to realize that the first switch 21 can be better arranged in the water inlet channel 110, correspondingly, the periphery of the rod 212 adjacent to the head thereof is further provided with a second peripheral portion 214 extending towards the water inlet channel 110, the second peripheral portion 214 is circumferentially provided with second water passing holes 2141 communicated with the water inlet 11 and the first water passing holes 2131 at intervals, the second peripheral portion 214 is used for supporting the first switch 21, and in addition, the second water passing holes 2141 circumferentially provided on the second peripheral portion 214 are communicated with the water inlet 11 and the first water passing holes, so that the water inlet 11 and the water outlet 12 can be communicated. 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, so that other structures of the water heater are not required to be changed, and the water heater is convenient to install and use.

In summary, the waterway path of the antifreeze valve in the water inlet and water discharge states is as follows: the water inlet 11 faces downwards, the water outlet 12 faces upwards, the water inlet and the water outlet are positioned in the same vertical direction, the water outlet 13 is positioned between the water inlet 11 and the water outlet 12, the water inlet, the water outlet and the water outlet form a transverse T shape, and the guide inclined surface 241 of the actuating piece gradually extends towards the water outlet 13 from bottom to top;

in a normal state (refer to fig. 3), the elastic member 22 is in a natural state, so that the first switch member 21 is in a state of opening the water inlet 11, and at this time, the head of the rod 212 of the first switch member 21 abuts against the upper end of the guiding inclined surface 241, so as to open the water inlet 11 and allow the water heater to enter water;

in winter frost cracking prevention (refer to fig. 4), the driving end arranged outside the valve rod 25 is pressed, so that the valve rod 25 moves towards the direction of the water outlet 13 along with the second switch piece 23 and the actuating part 24, at this time, the head of the rod body 212 of the first switch piece 21 abuts against the lower end of the guide inclined surface 241, and therefore, the first switch piece 21 is pressed downwards to be in a state of closing the water inlet 11, and the second switch piece 23 opens the water outlet 13 to drain water.

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: the water outlet device is characterized by further comprising an intermediate opening and closing mechanism (2), wherein the intermediate opening and closing mechanism (2) can perform reciprocating linear motion along the axis direction of a channel where the water outlet (13) is located, so that the water inlet (11) and the water outlet (13) can be selectively switched between states of opening the water inlet (11) and opening the water outlet (13).

2. The antifreeze valve according to claim 1, wherein: the intermediate switch mechanism (2) comprises:

the first switch piece (21) is arranged in the water inlet channel (110) corresponding to the water inlet (11) and is used for opening and closing the water inlet (11);

an elastic member (22) provided in the water inlet passage (110) such that the first switching member (21) always has a tendency to open the water inlet (11);

a second opening and closing member (23) provided in the drain passage (130) corresponding to the drain port (13) for opening and closing the drain port (13);

the actuating part (24) is arranged in the accommodating cavity (10) and is used for driving the first switch piece (21) to close the water inlet (11); and

the inner end (251) of the valve rod (25) penetrates through the valve body (1) to be connected with the actuating part (24) and the second switch piece (23), the outer end (252) of the valve rod (25) extends out of the valve body (1) to serve as a driving end, and the actuating part (24) can drive the first switch piece (21) to close the water inlet (11) along with the movement of the valve rod (25), so that the water outlet operation is realized.

3. The antifreeze valve according to claim 2, wherein: the actuating part (24) and the valve rod (25) synchronously slide, a position between the actuating part (24) and the second switch part (23) of the accommodating cavity (10) of the valve body (1) is provided with a limiting part (3), and the limiting part (3) is used for limiting the moving distance of the valve rod (25) and the actuating part (24), so that the water outlet (12) can be opened under the condition that the first switch part (21) is actuated by the actuating part (24) to close the water inlet (11).

4. The antifreeze valve according to claim 3, wherein: the limiting piece (3) is provided with a mounting hole (31), the inner end (251) of the valve rod (25) passes through the mounting hole (31) and then is directly connected with the second switch piece (23), and the limiting piece (3) is further provided with at least one circulation hole (32) which can enable the water outlet (12) and the water outlet (13) to be communicated in the peripheral area of the mounting hole (31).

5. The antifreeze valve according to claim 4, wherein: the part of the actuating part (24) corresponding to the water inlet (11) is provided with a guide inclined surface (241), and the guide inclined surface (241) gradually inclines from the water inlet (11) to the water outlet (13) along the axial direction of a channel in which the water outlet (13) is positioned.

6. The antifreeze valve according to claim 5, wherein: the first switch piece (21) comprises a blocking portion (211) capable of closing the water inlet (11) and a rod body (212) extending from the center of the blocking portion (211) along the axial direction of the water inlet channel (110), the head of the rod body (212) is abutted to the guide inclined surface (241), a first outer peripheral portion (213) extending towards the water inlet channel (110) and abutted to the water inlet channel is arranged on the periphery of the rod body (212), first water passing holes (2131) communicated with the water inlet (11) are circumferentially arranged on the first outer peripheral portion (213) at intervals, one end of the elastic piece (22) is connected to the first outer peripheral portion (213), and the other end of the elastic piece is connected to the inner peripheral wall of the water inlet channel (110), so that the first switch piece (21) always has a tendency of opening the water inlet (11).

7. The antifreeze valve according to claim 6, wherein: the periphery of the rod body (212) adjacent to the head of the rod body is also provided with a second peripheral part (214) extending to the water inlet channel (110), and the second peripheral part (214) is provided with second water passing holes (2141) communicated with the water inlet (11) and the first water passing holes (2131) at intervals along the circumferential direction.

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.