Anti-suck-back drainage assembly and refrigerator
By introducing an anti-backflow valve and a 'V'-shaped water-blocking spring structure into the refrigerator's drainage assembly, the noise and temperature fluctuation problems caused by backflow of gas from the drain pipe during refrigerator defrosting are solved, achieving quiet operation and stable temperature.
Patent Information
- Application Number
- CN202422934729.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the defrosting process of existing freezers, the drain pipe is prone to backflow of gas, causing noise and temperature fluctuations, which affects the user experience.
An anti-backflow drainage component was designed, including a drain pipe and an anti-backflow valve. The anti-backflow valve is equipped with an air intake hole and a drain hopper. The drain hopper is formed by two 'V'-shaped water-blocking springs forming a water passage gap. The air-blocking springs open under negative pressure to control the inflow of gas and prevent the water-air mixture from being sucked back.
It effectively eliminated drain pipe noise, stabilized the temperature inside the freezer, and improved the user experience.
Smart Images
Figure CN223564546U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to refrigeration equipment technical field, especially, relate to a kind of anti-suck drainage assembly and refrigerator. BACKGROUND
[0002] Refrigerator with defrosting function, it usually has drain pipe, for discharging defrosting water. When the freezer is closed, negative pressure is generated in the tank, and gas is sucked into the drain pipe.
[0003] The instantaneous airflow of the sucked gas is large, and if the water in the evaporating dish exceeds the end of the drain port, the "gurgling" sound of water and gas entering the drain pipe will occur, reducing the user experience.
[0004] During normal operation of the freezer, the temperature in the tank changes when starting / stopping, causing the air pressure to change, which causes some hot and humid gas to enter the drain hole, causing temperature fluctuations in the tank.
[0005] As can be seen from the above, the prior art has obvious inconvenience and defects in actual use, and therefore needs to be improved. INVENTION CONTENTS
[0006] In view of the above defects, the utility model mainly provides an anti-suck drainage assembly to solve the technical problems of noise generated by sucking gas at the drain pipe and affecting the temperature control in the tank.
[0007] To solve the above problems, the utility model provides an anti-suck drainage assembly, comprising a drain pipe; one end of the drain pipe has a water inlet, and the other end has a water outlet; the water outlet is connected to an anti-suck valve;
[0008] An air inlet hole is formed on the side of the anti-suck valve, and a drain bucket is arranged at the bottom; the drain bucket comprises two "V"-shaped water blocking springs; the upper side of the water blocking spring is fixed to the drain bucket; the bottom edges of the two water blocking springs have a gap, forming a strip-shaped water passage.
[0009] According to the anti-suck drainage assembly of the utility model, the anti-suck valve is provided with a gas blocking spring; one side of the gas blocking spring is fixed to the edge of the air inlet hole.
[0010] According to the anti-suck drainage assembly of the utility model, the anti-suck valve is provided with two "V"-shaped gas blocking springs; one side of the two gas blocking springs is fixed to the edge of the air inlet hole, and the other side of the two gas blocking springs abuts against each other; the upper and lower sides of the two gas blocking springs are respectively provided with cover plates.
[0011] According to the anti-suck drainage assembly of the utility model, the water blocking spring, the anti-suck valve and the gas blocking spring are all made of plastic material.
[0012] The drainage pipe and the anti-suckback valve are in a split structure.
[0013] The drainage pipe and the anti-suckback valve are in plug-in cooperation.
[0014] The water outlet of the drainage pipe is connected with a clamping sleeve; the side and the bottom side of the clamping sleeve towards the anti-suckback valve are in open structures, and the open structure positions form clamping edges;
[0015] The anti-suckback valve comprises a frame shell with one side in an open structure; the bottom of the frame shell is connected with the drain pan; the inner wall of the open structure of the frame shell and the inner wall close to the top opening of the drain pan are both provided with groove plates; the groove plates and the inner wall form plug-in grooves in cooperation with the clamping edges.
[0016] The drainage pipe is a corrugated pipe.
[0017] The drainage pipe is a blow molding pipe.
[0018] A refrigerator has the anti-suckback drainage assembly.
[0019] In conclusion, the anti-suckback drainage assembly of the utility model is provided with two water-stopping elastic sheets in V-shaped structure on the drain pan of the anti-suckback valve; the bottom edges of the two water-stopping elastic sheets form water passing gaps; when negative pressure is generated in the cabinet, gas is sucked from the air suction hole, and almost no gas flows into the narrow water passing gaps, so that the water-gas mixture is prevented from being sucked back from the water passing gaps, the gurgling sound is eliminated, and the user experience is improved. The utility model also provides a refrigerator with the anti-suckback drainage assembly. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a structural schematic view of the utility model;
[0021] Figure 2 is a structural schematic view of the exhaust pipe in Figure 1 ;
[0022] Figure 3 is a structural schematic view of the anti-suckback valve of the utility model;
[0023] Figure 4 is a structural schematic view of the anti-suckback valve of the utility model; Figure 1 ;
[0024] Figure 5 is a structural schematic view of the A area in Figure 4 ;
[0025] In the figure: 1-drain pipe, 11-water inlet, 12-water outlet; 2-anti-suck valve, 21-air suction hole, 22-drainage hopper, 23-groove edge plate, 24-air baffle, 25-water baffle, 26-cover plate; 3-clamping sleeve, 31-clamping edge. DETAILED DESCRIPTION
[0026] Referring to Figures 1-5 The utility model provides a kind of anti-suck drainage assembly, including drain pipe 1;One end of the drain pipe 1 has water inlet 11, the other end has water outlet 12;The water outlet 12 is connected anti-suck valve 2;
[0027] Air suction hole 21 is set on the side of the anti-suck valve 2, and drainage hopper 22 is provided at the bottom;The drainage hopper 22 includes two pieces of water baffle 25 in the form of "V" structure;The upper side of the water baffle 25 is fixedly connected to the drainage hopper 22;The gap between the bottom edges of the two water baffles 25 forms a strip-shaped water gap;
[0028] Defrosting water enters from the water inlet 11 of the drain pipe 1, falls into the drainage hopper 22 from the water outlet 12, and then is discharged through the water gap;The area of the air suction hole 21 of the utility model is much larger than the gap of the water gap, and when negative pressure is generated in the box, gas is sucked from the air suction hole 21, and almost no gas flows into the water gap, avoiding the anti-suck of water-gas mixture from the water gap and eliminating the "gurgling" sound.
[0029] The area of the air suction hole 21 of the utility model is large, and the instantaneous airflow caused by the negative pressure fluctuation in the box can pass smoothly without noise, or the noise is weak and not easy to be detected.
[0030] As an embodiment, the anti-suck valve 2 is provided with air baffle 24;One side of the air baffle 24 is fixedly connected to the edge part of the air suction hole 21;In the free state, the air baffle 24 completely blocks the air suction hole 21;Isolate external gas, avoid wet hot gas from air suction hole 21 anti-suck into the box, cause temperature fluctuation in the box.
[0031] When negative pressure fluctuation occurs in the box, the air baffle 24 opens inward under the action of internal and external pressure difference, and gas is sucked.
[0032] When the negative pressure fluctuation in the box is large, the air baffle 24 opens inward, and gas is sucked;At the same time, the two water baffles 25 of the drainage hopper 22 converge under the action of negative pressure, so that the water gap is closed, and the noise caused by the suction of water-gas mixture is avoided.
[0033] As an embodiment, the anti-suckback valve 2 is provided with two "V"-shaped air baffle plates 24; one side of the two air baffle plates 24 is fixed to the edge of the air inlet hole 21, and the other side of the two air baffle plates 24 abuts against each other; the upper and lower sides of the two air baffle plates 24 are respectively provided with cover plates 26.
[0034] The two cover plates 26 and the two air baffle plates 24 jointly form a cavity, which separates the air inlet hole 21 from the inside of the anti-suckback valve 2, so that external gas cannot enter the anti-suckback valve 2 through the air inlet hole 21.
[0035] When the negative pressure fluctuation in the box is large, the two air baffle plates 24 are expanded under the action of the pressure difference, so that the gas enters and balances the air pressure in the box.
[0036] Preferably, the water baffle plate 25, the anti-suckback valve 2 and the air baffle plate 24 of the utility model are all made of plastic material. They are light in weight and low in cost.
[0037] Preferably, the drainage pipe 1 and the anti-suckback valve 2 of the utility model are in a split structure, which is convenient for processing, manufacturing and maintenance.
[0038] Referring to Figure 2 , as an embodiment, the water outlet 12 of the drainage pipe 1 is connected to the clamping sleeve 3; one side and the bottom side of the clamping sleeve 3 towards the anti-suckback valve 2 are in an open structure, and the clamping edge 31 is formed at the open structure position;
[0039] Combined with Figure 4 and Figure 5 , the anti-suckback valve 2 comprises a frame shell with one side in an open structure, and the bottom of the frame shell is connected to the drain pan 22; the inner wall of the open structure of the frame shell and the inner wall close to the top opening of the drain pan 22 are both provided with a groove plate 23; the groove plate 23 and the inner wall form a plug groove which is plugged and matched with the clamping edge 31; the combination part of the drainage pipe 1 and the anti-suckback valve 2 is good in sealing property, so as to avoid water leakage and air leakage.
[0040] As an embodiment, the drainage pipe 1 is a corrugated pipe, which is good in flexibility, convenient to bend and can be adapted to various types of refrigerators.
[0041] Preferably, the drainage pipe 1 is a blow molding pipe, which is light in weight and low in manufacturing cost.
[0042] The utility model also provides a refrigerator with the anti-suckback drainage assembly.
[0043] The utility model provides a kind of anti-suck drainage assembly, by being provided with two pieces of water baffle leaf of "V" type structure in the drainage hopper of anti-suck valve;The bottom edge of two water baffle leaves forms water gap;When negative pressure is generated in the box, gas is inhaled from suction hole, and there is almost no gas inflow at narrow water gap, to avoid water gas mixture from water gap suck back, eliminate "gurgling" sound, improve user experience.The utility model also provides a refrigerator, with the anti-suck drainage assembly described.
[0044] Of course, the utility model can also have other various embodiments, without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model, but these corresponding changes and deformations should belong to the protection scope of the claims attached to the utility model.
Claims
1. A siphon-preventing drainage assembly, characterized in that, The drainage pipe has a water inlet at one end and a water outlet at the other end, and the water outlet is connected to an anti-suckback valve. The anti-suckback valve has an air suction hole on the side and a drain chute at the bottom, and the drain chute includes two "V"-shaped water blocking springs.
2. The anti-suckback drain assembly of claim 1, wherein, The anti-suckback valve has air blocking springs inside.
3. The anti-suckback drain assembly of claim 1, wherein, The anti-suckback valve has two "V"-shaped air blocking springs inside, and one side of each spring is fixed to the edge of the air suction hole, and the other side of each spring abuts against each other.
4. The anti-suckback drain assembly of claim 3, wherein, The water blocking springs, the anti-suckback valve and the air blocking springs are made of plastic.
5. The anti-suckback drain assembly of claim 1, wherein, The drainage pipe and the anti-suckback valve are in a split structure.
6. The anti-suckback drain assembly of claim 5, wherein, The drainage pipe and the anti-suckback valve are in a plug-in cooperation.
7. The anti-suckback drain assembly of claim 6, wherein, The water outlet of the drainage pipe is connected to a clamping sleeve, and the side and the bottom of the clamping sleeve facing the anti-suckback valve are in an open structure, and the open structure forms a clamping edge. The anti-suckback valve includes a frame shell with one side in an open structure, and the bottom of the frame shell is connected to the drain chute.
8. The anti-suckback drain assembly of claim 7, wherein, The inner wall of the open structure of the frame shell and the inner wall near the top opening of the drain chute are both provided with a groove plate, and the groove plate and the inner wall form a plug-in groove cooperating with the clamping edge.
9. The anti-suckback drain assembly of claim 8, wherein, The drainage pipe is a corrugated pipe.
10. A refrigerator characterized by The drainage pipe is a blow molding pipe. The anti-suckback drainage assembly has any one of the features of claims 1-9.