CN216078419U - Anti-freezing valve and water heater applying same - Google Patents
Anti-freezing valve and water heater applying same Download PDFInfo
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- CN216078419U CN216078419U CN202121484375.1U CN202121484375U CN216078419U CN 216078419 U CN216078419 U CN 216078419U CN 202121484375 U CN202121484375 U CN 202121484375U CN 216078419 U CN216078419 U CN 216078419U
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Abstract
The utility model relates to an anti-freezing valve and a water heater applying the anti-freezing valve, wherein the anti-freezing valve comprises a valve body with an accommodating cavity therein, and the valve body is provided with a water inlet, a water outlet and a water outlet which are communicated with the accommodating cavity; and the valve core is characterized by also comprising a water collecting piece connected to the valve body at the water outlet and a recovery device capable of returning water in the water collecting piece to the water inlet again, and compared with the prior art, the valve core has the advantages that: the water inlet, the water outlet and the water outlet are integrated on the valve body, the water passing channel communicated with each port is arranged on the valve core, and the water recycling device is further included, so that collected water after freezing prevention can be recycled.
Description
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 problem that branch pipe mouth drainage splashes exists when former anti-freeze valve structure switches to drainage shelves, and the concrete reason is as follows: when the hot water faucet at the water outlet of the water heater is closed, the water inlet end is normally filled with water to bear external water pressure, the whole hot water path of a user is in a hydrostatic pressure state, the pressure is equal to the external water supply pressure, and a pipeline system has a certain expansion amount; when the anti-freezing valve of the original structure is switched to a drainage gear, the water inlet end is closed, the water outlet is opened to be communicated with the atmosphere, the water pressure in the pipeline is released instantly, the water is sprayed from the branch pipe port to release pressure, the water is not compressible, the amount of water discharged from the branch pipe port is equal to the expansion amount of the pipeline, and the branch pipe port needs to be collected by a container and then discharged when the water is discharged because the water heater is installed indoors, so the use experience is poor, and the anti-freezing valve needs to be further improved.
SUMMERY OF THE UTILITY MODEL
A first technical problem to be solved by the present invention is to provide an antifreeze valve capable of reusing collected water after antifreeze, 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; and
the valve core is provided with a water passing channel and can be rotatably arranged in the accommodating cavity, the water passing channel is in fluid communication with the water inlet and the water outlet when the valve core is in a first position, and the water passing channel is in fluid communication with the water outlet and the water outlet when the valve core is in a second position;
the method is characterized in that:
the water recovery device also comprises a water collecting part connected with the valve body at the water outlet and a recovery device capable of returning water in the water collecting part to the water inlet again.
In order to realize that the water discharged into the water collecting part after the valve body is drained can be recycled to the water inlet of the valve body, preferably, the recycling device comprises a recycling pipe connected with the water collecting part and the water inlet, and the tail end of the recycling pipe is connected with a one-way valve structure which limits the water of the water collecting part to flow to the water inlet in a one-way mode.
In order to accelerate the water in the water collecting member to be recycled to the water inlet of the valve body, the water inlet of the valve body is preferably limited in the water inlet pipe with the injection structure. When the valve body is switched to the normal water inlet state again after water drainage, the water inlet pipe is provided with the injection structure, so that negative pressure is generated at the tail end of the recovery pipe, and water in the water collecting piece can be accelerated to be sucked into the water inlet of the valve body.
In order to better direct the cold water into the inlet pipe faster, the inlet pipe is preferably divided into three sections from bottom to top depending on the change in cross section: bellmouth contraction, straight portion and bellmouth diffusion portion up down, temperature sensor's afterbody is located the contraction, the end-to-end connection of recovery tube is in straight portion.
From the viewpoint of structural simplicity, it is preferable that the check valve structure includes a valve chamber, a valve ball disposed in the valve chamber, and an elastic member that causes the valve ball to always have a tendency to abut against the end of the recovery pipe.
In order to solve the second technical problem, the utility model provides a water heater with the antifreezing valve, which further comprises a water heater body, wherein the water outlet of the valve body is in fluid communication with the water inlet end of the water heater body.
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 channel communicated with each port is arranged on the valve core, the recovery device is further included, collected water after freezing prevention can be reused, and an implementation mode is provided for achieving splashing prevention and recovery of the gas quick 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 in the embodiment of the present invention in a water passage state;
fig. 3 is a schematic structural diagram of the antifreeze valve in a drainage recovery state in the 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 3, the preferred embodiment of the present invention is shown. The antifreezing valve of the embodiment comprises a valve body 1, wherein the valve body 1 is provided with an accommodating cavity 10, and 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 valve core 2 is provided with a water passing channel 21, the valve core 2 can be rotatably arranged in the accommodating cavity 10, the water passing channel 21 is in fluid communication with the water inlet 11 and the water outlet 12 when the valve core 2 is in a first position, the water passing channel 21 is in fluid communication with the water outlet 12 and the water outlet 13 when the valve core 2 is in a second position, the water collecting device also comprises a water collecting piece 3 connected to the position of the water outlet 13 of the valve body 1 and a recovery device 4 capable of enabling water in the water collecting piece 3 to flow back to the water inlet 11 again. The valve body 1 is integrated with a water inlet 11, a water outlet 12 and a water outlet 13, the valve core 2 is provided with a water passing channel 21 communicated with the water inlet, the water outlet and the water outlet, and the recovery device 4 is further included, so that collected water after freezing prevention can be reused.
Specifically, in order to realize that the water discharged into the water collecting member 3 after the water is discharged from the valve body 1 can be recovered to the water inlet 11 of the valve body 1 again, the recovery device 4 comprises a recovery pipe 41 connecting the water collecting member 3 and the water inlet 11, and the tail end of the recovery pipe 41 is connected with a one-way valve structure 42 which limits the water of the water collecting member 3 to flow to the water inlet 11 in one way. In order to accelerate the water in the water collecting part 3 to be recycled to the water inlet 11 of the valve body 1, the water inlet 11 of the valve body 1 is limited in the water inlet pipe 5 with the injection structure, so that after water is drained, the valve body 1 is switched to a normal water inlet state again, the water inlet pipe 5 has the injection structure, negative pressure is generated at the tail end of the recycling pipe 41, and the water in the water collecting part 3 can be accelerated to be sucked to the water inlet 11 of the valve body 1. In order to better guide the cold water into the water inlet pipe 5 more quickly, the water inlet pipe 5 of the present embodiment is divided into three parts from bottom to top according to the change of the cross section: a downward flared contraction part 51, a straight part 53 and an upward flared diffusion part 52, the tail part of the temperature sensor is positioned at the contraction part 51, and the tail end of the recovery pipe 41 is connected at the straight part 53. From the viewpoint of structural simplicity, the check valve structure 42 includes a valve chamber 421, a valve ball 422 disposed in the valve chamber 421, and an elastic member 423 for always urging the valve ball 422 against the end of the recovery pipe 41. Finally, the embodiment also provides a water heater with the anti-freezing valve, which further comprises a water heater body, wherein the water outlet 12 of the valve body 1 is in fluid communication with the water inlet end of the water heater body, and the device is only required to be additionally arranged on the water inlet end 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:
water flow state (as shown in fig. 2): when the valve core 2 is in the water passing state, the position of the valve core 2 is as shown in the figure, and when the valve core 2 is in the first position, the water passing channel 21 of the valve core 2 is in fluid communication with the water inlet 11 and the water outlet 12, and at this time, the valve ball 422 in the one-way valve structure 42 of the recovery pipe 41 is propped against the tail end of the recovery pipe 41 and is in the water passing state;
drainage state (as shown in fig. 3): rotating the anti-freezing valve to a drainage gear, rotating the valve core 2 by 90 degrees at the time, wherein the position is shown as the figure, the water inlet 11 is closed, the water outlet 13 is opened, and water discharged from the water outlet 13 is drained to the water collecting piece 3 to be collected;
recovery state (as shown in fig. 3): when the anti-freezing valve is reset to the water passing state, the water inlet pipe 5 is provided with the injection structure, so that negative pressure can be generated at the tail end of the recovery pipe 41 when water flow rapidly rushes into the water inlet pipe 5, the one-way valve structure 42 is forced to be opened, and finally, the water in the water collecting piece 4 is recovered to the water heater again.
Claims (6)
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); and
the valve core (2), the said valve core (2) has water channel (21), and can locate in the above-mentioned holding chamber (10) rotatably, in the state that the valve core (2) is in the first position, the said water channel (21) and water inlet (11) and water outlet (12) are in fluid communication, in the state that the valve core (2) is in the second position, the said water channel (21) and water outlet (12) and drainage outlet (13) are in fluid communication;
the method is characterized in that:
the water-saving valve further comprises a water collecting part (3) connected to the valve body (1) at the water outlet (13) and a recovery device (4) capable of enabling water in the water collecting part (3) to flow back to the water inlet (11) again.
2. The antifreeze valve according to claim 1, wherein: the recovery device (4) comprises a recovery pipe (41) connected with the water collecting part (3) and the water inlet (11), and the tail end of the recovery pipe (41) is connected with a one-way valve structure (42) which limits the water of the water collecting part (3) to flow to the water inlet (11) in a one-way mode.
3. The antifreeze valve according to claim 2, wherein: the water inlet (11) of the valve body (1) is limited in the water inlet pipe (5) with the injection structure.
4. The antifreeze valve according to claim 3, wherein: the water inlet pipe (5) is divided into three parts from bottom to top according to the change of the cross section: bellmouth constriction (51) down, straight portion (53) and bellmouth diffusion (52) up, temperature sensor's afterbody is located constriction (51), the end connection of recovery tube (41) is in straight portion (53).
5. The antifreeze valve according to any one of claims 2 to 4, wherein: the check valve structure (42) comprises a valve cavity (421), a valve ball (422) arranged in the valve cavity (421) and an elastic member (423) which enables the valve ball (422) to always have the tendency of resisting against the tail end of the recovery pipe (41).
6. A water heater applying the anti-freezing valve as claimed in any one of claims 1 to 5, further comprising a water heater body, wherein the water outlet (12) of the valve body (1) is in fluid communication with the water inlet end of the water heater body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121484375.1U CN216078419U (en) | 2021-06-30 | 2021-06-30 | Anti-freezing valve and water heater applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121484375.1U CN216078419U (en) | 2021-06-30 | 2021-06-30 | Anti-freezing valve and water heater applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216078419U true CN216078419U (en) | 2022-03-18 |
Family
ID=80664430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121484375.1U Active CN216078419U (en) | 2021-06-30 | 2021-06-30 | Anti-freezing valve and water heater applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216078419U (en) |
-
2021
- 2021-06-30 CN CN202121484375.1U patent/CN216078419U/en active Active
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