CN212203245U - Check valve for refrigerator drain, drain assembly and refrigerator - Google Patents

Abstract

The utility model provides a refrigerator, a drainage pipe and a one-way valve for the drainage pipe of the refrigerator. The one-way valve includes: a valve body, a mounting ring, a baffle plate and an elastic part. The valve body has a flow passage inside, and includes a connecting section and a valve core section. The connecting section is used to connect with the drain pipe, and the valve core section is located in the An installation part is arranged outside the drain pipe; the installation ring is sleeved on the installation part; the baffle is hinged with the installation ring and is matched with the opening of the valve core segment; the elastic piece is arranged in the overflow channel, and its two ends are respectively connected with the opening of the valve core section. The inner wall of the flow passage is connected with the baffle. The utility model controls the opening and closing of the overflow channel by rotating the baffle, preventing the outside air from entering the evaporator chamber of the refrigerator along the drain pipe, and uses the elastic member to provide the force for maintaining the baffle in the state of closing the overflow channel, so that the baffle can be closed. A small amount of condensed water is collected at the front to seal the flow passage, so that the sealing effect is better, thereby reducing the energy consumption of the refrigerator and the noise of the compressor.

Description

Check valve for refrigerator drain, drain assembly and refrigerator

technical field

The utility model belongs to the technical field of refrigeration equipment parts, in particular to a one-way valve used for a refrigerator drainage pipe, a drainage assembly and a refrigerator.

Background technique

The evaporator in the refrigerator will generate condensed water. In order to prevent the condensed water from leaking into the important components of the refrigerator, a drain pipe is installed inside the refrigerator. The tray is used to guide the condensed water generated on the evaporator of the refrigerator into the water tray. However, after the door of the refrigerator is closed, the drain pipe is still connected to the atmosphere, so some problems arise. The hot air from the outside will enter the evaporator room of the refrigerator along the drain pipe, which not only increases the energy consumption of the refrigerator, but also makes it difficult for the refrigerator to quickly reach the preset temperature, which causes the compressor to keep working and increases the noise of the refrigerator.

Utility model content

An object of the present invention is to provide a one-way valve for a refrigerator drain pipe, and the one-way valve can prevent the outside air from entering the evaporator chamber of the refrigerator along the drain pipe, thereby reducing the energy consumption of the refrigerator and the compressor. noise.

A further object of the present invention is that the elastic member in the one-way valve can provide a force to maintain the baffle in a state of closing the flow passage, so that when the force of the condensed water on the baffle is less than the force, the baffle is closed and the baffle is blocked. A small amount of condensed water collects in front of the plate to seal the flow passage.

In particular, the present invention provides a one-way valve for a refrigerator drain pipe, which is characterized in that it includes:

a valve body with a flow passage inside, including a connecting section and a valve core section, the connecting section is used for connecting with the drain pipe, the valve core section is located outside the drain pipe and is provided with a mounting part;

an installation ring, sleeved on the installation part;

a baffle, hinged with the mounting ring, and adapted to the opening of the valve core segment, so as to realize the opening and closing of the overflow passage through rotation; and

an elastic member, disposed in the flow passage, and connected to the inner wall of the flow passage and the baffle at both ends, and configured to provide a force for maintaining the baffle in a state of closing the flow passage .

Further, a limit sealing ring protrudes from the opening of the valve core segment, which is configured to limit the rotation position of the baffle plate.

Further, a plurality of protruding sealing ribs are arranged on the outer surface of the connecting section in parallel and spaced apart along the circumferential direction, and are configured to fix the drain pipe and the valve body.

Further, the valve body is further provided with a positioning flange, and the positioning flange protrudes from the outer surface of the valve body and is configured to locate the relative position of the drain pipe and the valve body.

Further, the opening face of the baffle plate facing the valve core segment is arc-shaped.

Further, the elastic member is a tension spring or a torsion spring.

Further, both the connecting segment and the valve core segment are cylindrical structures, and the outer diameter of the cross section of the connecting segment is smaller than the outer diameter of the cross section of the valve core segment.

Further, the flow passage, the connection section and the valve core section are arranged coaxially.

In particular, the present invention also provides a drainage assembly, comprising:

a drain pipe, the upper end of which is used to connect with a water collecting tray provided at the refrigerator evaporator, and is configured to lead out the condensed water produced on the refrigerator evaporator; and

According to the above-mentioned one-way valve, the one-way valve is disposed at the lower end of the drain pipe to prevent air from flowing to the refrigerator evaporator along the drain pipe.

In particular, the present invention also provides a refrigerator including the above-mentioned drainage assembly.

The baffle plate of the one-way valve of the present invention is hinged with the installation ring and is matched with the opening of the valve core segment, and the overflow channel can be opened and closed by rotating, which can prevent the outside air from entering along the drain pipe. The evaporator chamber of the refrigerator, thereby reducing the energy consumption of the refrigerator and the noise of the compressor.

Further, the elastic member in the one-way valve of the present invention can provide a force to maintain the baffle in a state of closing the flow passage, so that when the force of the condensed water on the baffle is less than the force, the baffle is closed and the baffle is closed. A small amount of condensed water is accumulated in the front to seal the flow passage.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic diagram of the positional relationship between a refrigerator and a drain pipe according to an embodiment of the present invention.

2 is an exploded view of a drainage assembly according to an embodiment of the present invention.

3 is a perspective view of a drainage assembly according to an embodiment of the present invention.

4 is a cross-sectional view of the installation relationship of a drain pipe and a one-way valve according to an embodiment of the present invention.

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of the positional relationship between a refrigerator and a drain pipe according to an embodiment of the present invention. The present invention provides a refrigerator 100 , which generally includes an evaporator 120 , a compressor 140 and a drain assembly 200 . The evaporator 120 is configured to provide cooling capacity into the storage compartment. Usually, condensed water is generated at the evaporator 120 of the refrigerator, and a collecting tray 122 for collecting the condensed water is disposed at the evaporator 120 . The compressor 140 is provided with a water receiving tray 142 for receiving condensed water. The drain assembly 200 is used to guide the condensed water from the water collecting tray 122 to the water receiving tray 142. The condensed water is evaporated and drained under the action of the heat emitted by the compressor 140. 100 out of the refrigerator.

Please refer to FIGS. 2 to 4 , FIG. 2 is an exploded view of a drain pipe according to an embodiment of the present invention, FIG. 3 is a perspective view of a drain pipe according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. Example of a cross-sectional view of the installation relationship between the drain pipe and the check valve. In one embodiment of the present application, the drain assembly 200 generally includes a drain pipe 10 and a one-way valve 20 .

The drain pipe 10 is connected to the water collecting pan 122 at the evaporator 120 of the refrigerator, and is configured to guide the condensed water generated on the evaporator 120 into the water collecting pan 142 . The other end of the drain pipe 10 is also connected with a one-way valve 20 for preventing air from flowing to the refrigerator evaporator 120 along the drain pipe 10 , thereby reducing the energy consumption of the refrigerator 100 and the noise of the compressor 140 .

In an embodiment of the present application, the one-way valve 20 further includes a valve body, a mounting ring 220 , a baffle 230 and an elastic member 240 .

The inside of the valve body has an overflow channel 212 for connecting the valve body and the drain pipe 10 , so that the condensed water of the refrigerator can be discharged to the water receiving tray 142 along the drain pipe 10 and the overflow channel 212 . The valve body further includes a connecting section 214 and a valve core section 216. The connecting section 214 is used to connect with the drain pipe 10. The valve core section 216 is located outside the drain pipe 10 and is provided with a mounting portion 218. The mounting ring 220 is sleeved on the mounting portion 218. superior.

Referring to FIG. 4 , in one embodiment of the application, the mounting portion 218 includes a protruding portion protruding from the valve body, the protruding portion is provided with a groove along the circumferential direction, and the mounting ring 220 is sleeved on the mounting portion 218 to protrude The mounting ring 220 is fixed in the groove on the top.

The baffle 230 is hinged to the mounting ring 220 and fits with the opening of the valve core segment 216 . The baffle 230 is rotatably disposed at the opening of the valve core segment 216, and can turn to the opening of the valve core segment 216 until closing the overflow passage 212 inside the valve body, or turn away from the opening of the valve core segment 216 to open the overflow passage 212, so that the baffle 230 can be used to realize the opening and closing control of the overflow passage 212 inside the valve body.

The elastic member 240 is disposed in the flow passage 212 , and its two ends are respectively connected with the inner wall of the flow passage 212 and the baffle 230 , and are configured to provide a force for maintaining the baffle 230 in a state of closing the flow passage 212 .

Usually, the condensed water generated by the refrigerator evaporator 120 will flow downward along the inner wall of the drain pipe 10 due to gravity, and the condensed water will generate the baffle plate 230 disposed at the opening of the valve core segment 216, so that the baffle plate 230 is turned away from the valve core. The force of the opening of the segment 216 , that is, the condensed water, will push the baffle 230 away. When the force of the condensed water on the baffle 230 is less than or equal to the force of the elastic member 240 on the baffle 230, the baffle 230 will not rotate, at this time, the overflow channel 212 is still in a closed state, and the condensation before the baffle 230 The water will seal the overflow channel 212 in a water-seal manner, so that the outside air cannot enter the space where the evaporator 120 of the refrigerator is located along the valve body and the inside of the drain pipe 10 . With the continuous operation of the refrigerator evaporator 120, more and more condensed water accumulates in front of the baffle 230, and the force on the baffle 230 gradually increases. When the force of the plate 230 is applied, the baffle 230 will rotate away from the opening of the valve core section 216 under the action of the condensed water, open the overflow channel 212, and discharge the condensed water to the water receiving tray 142 of the refrigerator. When the condensed water is drained to a part, its force on the baffle 230 will be less than or equal to the force of the elastic member 240 on the baffle 230. At this time, the baffle 230 rotates and closes the flow passage 212. A part of the condensed water that is not drained will accumulate, and the condensed water of this part can seal the overflow channel 212 in a water-sealing manner. The condensed water is repeatedly and intermittently discharged from the drain pipe 10 as described above, and in the closed state of the baffle 230, a part of the condensed water will still remain in front of the baffle 230 to seal the gap between the baffle 230 and the overflow channel 212 and prevent the outside air from draining along the drain. The tube 10 flows to the space where the evaporator 120 is located.

As shown in FIG. 4 , in the embodiment of the present application, the elastic member 240 is a tension spring, the two ends of which are respectively connected with the inner wall of the overflow channel 212 and the baffle plate 230 to maintain the baffle plate in the closed flow channel. 212 State of force.

In other embodiments of the present application, the elastic member 240 may also use a torsion spring.

In other embodiments of the present application, those skilled in the art can also select a tension spring or a torsion spring with a suitable elastic coefficient to control the displacement of the baffle 230 in combination with parameters such as the displacement of the drain pipe 10 of the refrigerator and the diameter of the drain pipe 10 . state, so that the water sealing effect is better.

Referring to FIG. 4 , in some embodiments of the present application, in order to make the baffle 230 more compatible with the opening of the valve core segment 216 , a limiting sealing ring 310 is also protruded from the opening of the valve core segment 216 , which is configured as The rotation position of the baffle 230 is restricted, so that the baffle 230 just closes the flow passage 212 when the baffle 230 is rotated to contact with the limiting sealing ring 310 .

Referring to FIG. 4 , in some embodiments of the present application, the valve body connecting section 214 is provided with a plurality of sealing ribs 320 in parallel along the circumferential direction. The sealing ribs 320 protrude from the outer surface of the valve body connecting section 214 and are configured to fix drainage. Tube 10 and valve body. In this embodiment, the connecting section 214 of the valve body extends into the interior of the drain pipe 10 to communicate with the drain pipe 10 . In order to prevent loosening between the valve body and the drain pipe 10 , the sealing ribs 320 on the outer surface of the connecting section 214 can abut against the inner wall of the drain pipe 10 to fix the relative positions of the valve body and the drain pipe 10 . It should be noted that, in order to fix the relative position of the valve body and the drain pipe 10 . Those skilled in the art can also use a connection method such as a thread, a hoop, a buckle, etc., but compared with the method of using the sealing rib 320 in the embodiment of the present application, the method of using the sealing rib 320 is simpler and more reliable.

Referring to FIGS. 3 and 4 , in some embodiments of the present application, the valve body is provided with a positioning flange 330, and the positioning flange 330 protrudes from the outer surface of the valve body and extends away from the outer surface of the valve. In order to locate the relative position of the drain pipe 10 and the valve body. In this embodiment, the connecting section 214 of the valve body extends into the drain pipe 10 to communicate with the drain pipe 10 , and the positioning flange 330 can locate the axial position where the valve body connecting section 214 extends into the drain pipe 10 .

Referring to FIG. 4 , in some embodiments of the present application, the side of the baffle plate 230 facing the opening of the valve body spool segment 216 is arc-shaped, so that the baffle plate 230 and the limit sealing ring 310 can be in closer contact, so that the Better sealing effect.

Referring to FIG. 4 , in some embodiments of the present application, the connecting section 214 and the valve core section 216 are both cylindrical structures, and the cross-sectional outer diameter of the connecting section 214 is smaller than the valve core section 216 the outer diameter of the cross section.

Referring to FIG. 4 , in some embodiments of the present application, the connecting section 214 of the valve body and the valve body spool section 216 are arranged coaxially.

The working principle of one of the embodiments of the present application is that the condensed water generated at the refrigerator evaporator 120 flows to the refrigerator water receiving tray 142 along the drain pipe 10 under the action of gravity. One end of the drain pipe 10 is provided with a one-way valve 20, wherein when the force of the condensed water in front of the baffle 230 on the baffle 230 is less than or equal to that of the elastic member 240, the baffle 230 is in a closed state. At this time, the condensed water in front of the baffle plate 230 plays the role of water-sealing the flow passage 212 . With the continuous accumulation of condensed water in front of the baffle 230, when the force on the baffle 230 is greater than the force of the elastic member 240, the baffle 230 is opened to discharge the condensed water. In this way, the above process is repeated continuously, so that the condensed water is discharged intermittently, and when the baffle 230 is closed, the condensed water in front of the baffle 230 will play the role of water-sealing the overflow channel 212 to prevent the outside air from flowing backward along the drain pipe 10 to the space where the evaporator 120 of the refrigerator is located, thereby reducing the energy consumption of the refrigerator 100 and the noise of the compressor 140 .

By now, those skilled in the art will recognize that although various exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, Numerous other variations or modifications consistent with the principles of the present invention are directly identified or derived from the disclosure of the present invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A check valve for a drain pipe of a refrigerator, comprising:

the valve body is internally provided with an overflowing channel and comprises a connecting section and a valve core section, the connecting section is used for being connected with the drain pipe, and the valve core section is positioned outside the drain pipe and is provided with an installation part;

the mounting ring is sleeved on the mounting part;

the baffle is hinged with the mounting ring and is matched with the opening of the valve core section so as to realize the opening and closing of the overflowing channel through rotation; and

and the elastic piece is arranged in the overflowing channel, two ends of the elastic piece are respectively connected with the inner wall of the overflowing channel and the baffle, and the elastic piece is configured to provide acting force for maintaining the baffle in a state of closing the overflowing channel.

2. The one-way valve of claim 1,

and a limiting sealing ring is also protruded on the opening of the valve core section and is configured to limit the rotating position of the baffle.

3. The check valve of claim 1, wherein the outer surface of the connecting section is provided with a plurality of raised sealing ribs arranged in parallel and at intervals along the circumferential direction, and configured to fix the drain pipe and the valve body.

4. The check valve of claim 1, wherein the valve body further comprises a positioning flange protruding from an outer surface of the valve body and configured to position the drain pipe relative to the valve body.

5. The check valve of claim 1, wherein a face of the flapper facing the valve core segment opening is radiused.

6. The one-way valve of claim 1,

the elastic piece is an extension spring or a torsion spring.

7. The one-way valve of claim 1,

the connecting section and the valve core section are both of cylindrical structures, and the outer diameter of the cross section of the connecting section is smaller than that of the cross section of the valve core section.

8. The one-way valve of claim 1,

the connecting section and the valve core section are coaxially arranged.

9. A drain assembly, comprising:

the upper end of the drain pipe is used for being connected with a water collecting tray arranged at the evaporator of the refrigerator and is configured to lead out condensed water generated on the evaporator of the refrigerator; and

the check valve according to any one of claims 1 to 8, which is provided at a lower end of the drain pipe for preventing air from flowing along the drain pipe toward the refrigerator evaporator.

10. A refrigerator comprising the drain assembly of claim 9.

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