Corrosion-resistant drainage pipeline for refrigerator

Abstract

The utility model discloses a corrosion-resistant water drainage pipeline for a refrigerator in the technical field of water drainage pipes of refrigeration equipment, which comprises a connecting pipe, a water drainage pipe body in threaded connection with the lower end of the outer wall of the connecting pipe, a water drainage nozzle mounted at the bottom of the water drainage pipe body, a bottom plate mounted at the bottom of the water drainage nozzle, and a plurality of water drainage holes formed in the bottom plate. A sealing plug is installed in the drainage nozzle, shells are installed at the two ends of the bottom of the sealing plug, reset springs are connected to the interiors of the two shells, sliding plates are installed at the bottoms of the two reset springs, and movable rods are connected to the bottoms of the two sliding plates. Through cooperative arrangement of the drainage nozzle, the sealing plug, the shell, the movable rod, the drainage hole, the bottom plate, the sliding plate and the reset spring, during drainage, the gravity of water overcomes the elasticity of the reset spring to press the sealing plug downwards, a gap is formed between the sealing plug and the drainage nozzle, and when drainage is not conducted, the elasticity of the reset spring can abut against the sealing plug to be attached to the inner wall of the drainage nozzle. The drainage channel is automatically opened or closed.

Description

Technical Field

[0001] This utility model relates to the technical field of drainage pipes for refrigeration equipment, and in particular to a corrosion-resistant drainage pipe for refrigerators. Background Technology

[0002] In modern refrigerators, whether direct-cooling or air-cooling, humid air inside the refrigerator condenses on the low-temperature surface of the evaporator during the cooling process, forming frost. After the frost on the evaporator surface is removed by the defrosting system or manually, defrost water is produced. This defrost water needs to be drained in time; otherwise, it will flow into various parts of the refrigerator's cooling compartment, easily causing bacterial growth and thus making the stored food spoil.

[0003] Patent publication number CN209744824U discloses a drainage component and a refrigerator. The drainage component includes: a drain pipe for connecting the interior of the refrigerator to the external environment; a pipe cap including a sealing portion extending into the drain pipe; and a sealing element disposed between the sealing portion and the drain pipe. The refrigerator includes the aforementioned drainage component. When the aforementioned drainage component is applied in a refrigerator, the drainage channel of the drain pipe connects the interior of the refrigerator to the external environment. During periods when the refrigerator does not need to drain, the sealing portion of the pipe cap extends into the drainage channel, and the sealing element seals the gap between the sealing portion and the drain pipe, ensuring good sealing performance of the drainage component and preventing leakage when there is water accumulation inside the refrigerator. However, the aforementioned drain pipe requires manual opening of the pipe cap to drain water generated from the defrosting of ice in the freezer compartment, and manual insertion of the pipe cap into the drainage channel is required when drainage is not needed, which increases the operation steps and is relatively cumbersome. Utility Model Content

[0004] To address the aforementioned problem that existing drain pipes require manual opening of the pipe cap when draining water generated during ice melting in the freezer compartment, and manual insertion of the pipe cap into the drain channel when drainage is not needed, thus increasing the operational steps and making the process cumbersome, this utility model provides a corrosion-resistant drain pipe for refrigerators.

[0005] This utility model provides a corrosion-resistant drain pipe for refrigerators, using the following technical solution:

[0006] A corrosion-resistant drain pipe for a refrigerator includes a connecting pipe installed on the refrigerator. A drain pipe body is screwed to the lower end of the outer wall of the connecting pipe. A drain nozzle is installed at the bottom of the drain pipe body. A base plate is installed at the bottom of the drain nozzle. Several drain holes are formed on the base plate. A sealing plug is installed inside the drain nozzle. A housing is installed at both ends of the bottom of the sealing plug. A return spring is connected inside each of the two sets of housings. A sliding plate is installed at the bottom of each of the two sets of return springs. A movable rod is connected to the bottom of each of the two sets of sliding plates. The bottom of each of the two sets of movable rods extends out of the housing and is fixedly connected to the top of the base plate.

[0007] By adopting the above technical solution, the drain pipe body is screwed to the lower end of the connecting pipe. When there is water in the refrigerator, the water will enter the interior of the drain pipe body through the connecting pipe and then enter the interior of the drain nozzle through the drain pipe body. The gravity of the water will push the sealing plug downward, and the sealing plug will drive the housing to slide along the movable rod, thereby compressing the return spring and creating a gap between the sealing plug and the drain nozzle. At this time, the water will pass through the gap and drain out of the refrigerator through several drain holes on the bottom plate. When there is no water, there is no water pressing down on the sealing plug, and the elastic force of the return spring will press the sealing plug against the inner wall of the drain nozzle to seal it, thus realizing the automatic opening or closing of the drain channel.

[0008] Optionally, a sealing assembly is provided between the connecting pipe and the drain pipe body. The sealing assembly includes an upper sealing sleeve, which is fitted onto the middle part of the outside of the connecting pipe. A lower sealing sleeve is connected to the top of the drain pipe body. A connecting assembly is provided between the bottom of the upper sealing sleeve and the top of the lower sealing sleeve.

[0009] By adopting the above technical solution, when the connecting pipe and the threaded connection are made, the upper sealing sleeve and the lower sealing sleeve fit together, ensuring that the connection position between the connecting pipe and the drain pipe body does not deform during the subsequent refrigerator foaming process.

[0010] Optionally, the connecting assembly includes an annular protrusion mounted on the top of the lower sealing sleeve, and the bottom of the upper sealing sleeve has an annular groove that matches the annular protrusion.

[0011] By adopting the above technical solution, when the annular protrusion is engaged inside the annular groove, the sealing performance of the upper and lower sealing sleeves is improved.

[0012] Optionally, the top of the drain pipe body is configured as a funnel-shaped structure.

[0013] By adopting the above technical solution, the accumulated water in the refrigerator can be quickly discharged through the drain pipe body.

[0014] Optionally, the sealing plug is a rubber sealing plug.

[0015] By adopting the above technical solution, the rubber is elastic, which allows the sealing plug and the drain nozzle to fit more tightly, thereby improving the sealing effect between the drain nozzle and the sealing plug.

[0016] Optionally, the inner walls of the connecting pipe, the drain pipe body, and the drain nozzle are all coated with a polyethylene coating.

[0017] By adopting the above technical solutions, the connecting pipe, the drain pipe body, and the drain nozzle have certain anti-corrosion properties, thereby improving the service life of the connecting pipe, the drain pipe body, and the drain nozzle.

[0018] Optionally, both sets of housings have sliding holes at their bottom that match the movable rod.

[0019] By adopting the above technical solution, the shell slides more smoothly along the movable rod.

[0020] In summary, this utility model has at least one of the following beneficial effects:

[0021] By using the coordinated arrangement of the drain nozzle, sealing plug, housing, movable rod, drain hole, base plate, sliding plate and return spring, the gravity of the water overcomes the elastic force of the return spring and presses down on the sealing plug when draining, forming a gap between the sealing plug and the drain nozzle, and the water can pass through the gap and be discharged through the drain hole. When not draining, the elastic force of the return spring can press the sealing plug against the inner wall of the drain nozzle, effectively realizing the automatic opening or closing of the drain channel.

[0022] By using the combination of the upper sealing sleeve, lower sealing sleeve, annular protrusion, and annular groove, the upper and lower sealing sleeves can be engaged through the annular protrusion and annular groove during the process of tightening the connecting pipe and the drain pipe body with threads, thereby improving the sealing performance. In addition, this sealing component can also ensure that the connection position between the connecting pipe and the drain pipe body will not deform during the subsequent refrigerator foaming process.

[0023] The drain pipe body is coated with a polyethylene coating on the inner wall of the connecting pipe, drain pipe body and drain nozzle, which gives the connecting pipe, drain pipe body and drain nozzle a certain degree of corrosion resistance, thereby extending the service life of the connecting pipe, drain pipe body and drain nozzle. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 2 This is a bottom view of the base plate structure of this utility model;

[0027] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0028] In the diagram: 1. Connecting pipe; 2. Sealing assembly; 201. Upper sealing sleeve; 202. Lower sealing sleeve; 3. Drain pipe body; 4. Drain nozzle; 5. Sealing plug; 6. Housing; 7. Movable rod; 8. Drain hole; 9. Base plate; 10. Slide plate; 11. Return spring; 12. Connecting assembly; 1201. Annular protrusion; 1202. Annular groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0030] Please refer to the attached diagram in the instruction manual. Figure 1 This utility model provides one embodiment: a corrosion-resistant drain pipe for a refrigerator, including a connecting pipe 1, which is installed on the refrigerator. A drain pipe body 3 is screwed to the lower end of the outer wall of the connecting pipe 1. The top of the drain pipe body 3 is configured in a funnel shape to facilitate the rapid drainage of water accumulated in the refrigerator through the drain pipe body 3.

[0031] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 A sealing assembly 2 is provided between the connecting pipe 1 and the drain pipe body 3. The sealing assembly 2 includes an upper sealing sleeve 201, which is fixedly fitted onto the middle of the outer side of the connecting pipe 1. A lower sealing sleeve 202 is fixedly connected to the top of the drain pipe body 3. A connecting assembly 12 is provided between the bottom of the upper sealing sleeve 201 and the top of the lower sealing sleeve 202. When the connecting pipe 1 and 33 are threaded together, the upper sealing sleeve 201 and the lower sealing sleeve 202 fit together, ensuring that the connection position between the connecting pipe 1 and the drain pipe body 3 does not deform during the subsequent refrigerator foaming process.

[0032] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 The connecting assembly 12 includes an annular protrusion 1201, which is fixedly installed on the top of the lower sealing sleeve 202. The bottom of the upper sealing sleeve 201 has an annular groove 1202 that matches the annular protrusion 1201. When the annular protrusion 1201 is engaged inside the annular groove 1202, the sealing performance of the upper sealing sleeve 201 and the lower sealing sleeve 202 is improved.

[0033] Please refer to the attached diagram in the instruction manual. Figure 1A drain nozzle 4 is fixedly installed at the bottom of the drain pipe body 3. The inner walls of the connecting pipe 1, the drain pipe body 3, and the drain nozzle 4 are all coated with a polyethylene coating. This gives the connecting pipe 1, the drain pipe body 3, and the drain nozzle 4 a certain degree of corrosion resistance, thereby improving their service life.

[0034] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 A base plate 9 is installed at the bottom of the drain nozzle 4. Several drain holes 8 are opened on the base plate 9. A sealing plug 5 is installed inside the drain nozzle 4. The sealing plug 5 is a rubber sealing plug. Rubber is elastic, which allows the sealing plug 5 to fit more tightly with the drain nozzle 4, thereby improving the sealing effect between the drain nozzle 4 and the sealing plug 5.

[0035] Please refer to the attached diagram in the instruction manual. Figure 1 Both ends of the bottom of the sealing plug 5 are fixedly installed with housings 6. Return springs 11 are connected inside each of the two sets of housings 6. Slide plates 10 are installed at the bottom of each set of return springs 11, and the slide plates 10 are slidably connected to the housings 6. Movable rods 7 are connected to the bottom of each set of slide plates 10. The bottom of each set of movable rods 7 extends out of the housings 6 and is fixedly connected to the top of the base plate 9. Sliding holes matching the movable rods 7 are opened at the bottom of each set of housings 6. This allows the housings 6 to slide more smoothly along the movable rods 7.

[0036] Working principle: When in use, the drain pipe body 3 is screwed to the lower end of the connecting pipe 1. During the tightening process, the upper sealing sleeve 201 is engaged with the annular protrusion 1201 on the top of the lower sealing sleeve 202 through the annular groove 1202, which improves the sealing performance and also ensures that the connection position between the connecting pipe 1 and the drain pipe body 3 will not deform during the subsequent refrigerator foaming process.

[0037] When there is water inside the refrigerator, the water will enter the interior of the drain pipe body 3 through the connecting pipe 1, and then enter the interior of the drain nozzle 4 through the drain pipe body 3. The gravity of the water will push the sealing plug 5 downward, and the sealing plug 5 will drive the housing 6 to slide along the movable rod 7, thereby compressing the return spring 11, so that a gap is formed between the sealing plug 5 and the drain nozzle 4. At this time, the water will pass through the gap and be discharged from the refrigerator through several drain holes 8 on the bottom plate 9. When there is no water, there is no water pressing down on the sealing plug 5, and the elastic force of the return spring 11 will press the sealing plug 5 against the inner wall of the drain nozzle 4 to seal it, thus realizing the automatic opening or closing of the drainage channel.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A corrosion-resistant drain duct for a refrigerator, comprising a connection pipe (1) installed on a refrigerator, characterized in that: The lower end of the outer wall of the connecting pipe (1) is screwed with a drain pipe body (3), the bottom of the drain pipe body (3) is installed with a drain nozzle (4), the bottom of the drain nozzle (4) is installed with a bottom plate (9), a plurality of drain holes (8) are opened on the bottom plate (9), the inside of the drain nozzle (4) is installed with a sealing plug (5), the bottom of the sealing plug (5) is installed with a shell (6) at both ends, the inside of the two groups of shells (6) is connected with a reset spring (11), the bottom of the two groups of reset springs (11) is installed with a sliding plate (10), the bottom of the two groups of sliding plates (10) is connected with a movable rod (7), the bottom of the two groups of movable rods (7) is stretched out of the shell (6) and is fixedly connected with the top of the bottom plate (9).

2. The corrosion resistant drain line for a refrigerator according to claim 1, characterized in that: The connecting pipe (1) and the drain pipe body (3) are provided with a sealing assembly (2), the sealing assembly (2) comprises an upper sealing sleeve (201), the upper sealing sleeve (201) is sleeved on the middle of the outer side of the connecting pipe (1), the top of the drain pipe body (3) is connected with a lower sealing sleeve (202), the bottom of the upper sealing sleeve (201) and the top of the lower sealing sleeve (202) are provided with a connecting assembly (12).

3. The corrosion resistant drain line for a refrigerator of claim 2, wherein: The connecting assembly (12) comprises an annular protrusion (1201), the annular protrusion (1201) is installed on the top of the lower sealing sleeve (202), the bottom of the upper sealing sleeve (201) is opened with an annular groove (1202) matched with the annular protrusion (1201).

4. The corrosion resistant drain line for a refrigerator of claim 1, wherein: The top of the drain pipe body (3) is provided in a horn structure.

5. The corrosion resistant drain line for a refrigerator of claim 1, wherein: The sealing plug (5) is a rubber sealing plug.

6. The corrosion resistant drain line for a refrigerator of claim 1, wherein: The inner walls of the connecting pipe (1), the drain pipe body (3) and the drain nozzle (4) are coated with a polyethylene coating.

7. The corrosion resistant drain line for a refrigerator of claim 1, wherein: The bottom of the two groups of shells (6) is opened with a sliding hole matched with the movable rod (7).

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