Drain pipe joint and refrigerating and freezing device with same

Abstract

The utility model provides a drain pipe joint and a refrigerating and freezing device with the same. The drain pipe joint comprises a joint body. The connector body is provided with a main pipe part and a main drainage part formed by extending downwards from one end of the main pipe part. The lower part of the main drainage part is funnel-shaped, and a main drainage port is formed at the lower end of the main drainage part. A floating ball is arranged in the main drainage part; and the floating ball is configured to block the main drainage port under the action of gravity, or form accumulated water in the main drainage part and then float upwards to open the main drainage port. The main drainage part with the funnel-shaped lower part is matched with the floating ball in the main drainage part, and the main drainage port is closed by utilizing the self weight of the floating ball, so that the drainage pipe joint can block the main drainage port when no water is accumulated, and meanwhile, the leakage of cold in the storage chamber and the backflow of air in the press cabin into the storage chamber through the drainage pipe are prevented; therefore, the drainage pipe sealing problem of the refrigerating and freezing device is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of home appliances, in particular to a drain pipe joint and a refrigerating and freezing device with the same. BACKGROUND

[0002] In the operation process of the refrigerating and freezing device such as a refrigerator, the moisture in the air will condense to form condensate water in the storage compartment and on the evaporator. In order to prevent the excessive accumulation of the condensate water from affecting the normal operation of the refrigerating and freezing device, the refrigerating and freezing device needs to be provided with a drain pipe to drain the condensate water. The refrigerating and freezing device usually sets a water collecting tray in the compressor chamber to collect the condensate water, and accelerates the evaporation of the condensate water by means of the heat generated during the operation of the compressor.

[0003] However, in the prior art, the drain pipe of the refrigerating and freezing device is mostly designed in a straight pipe type, which can drain the condensate water but generally has a sealing problem to a certain extent, that is, either cannot prevent the leakage of cold energy inside the storage compartment or cannot prevent the air in the compressor chamber from flowing back into the storage compartment through the drain pipe, thereby affecting the refrigeration performance of the refrigerator. SUMMARY

[0004] An aspect of the utility model is to provide a drain pipe joint capable of solving the sealing problem of the drain pipe of the refrigerating and freezing device.

[0005] A further aspect of the utility model is to improve the sealing effect of the drain pipe joint.

[0006] Another further aspect of the utility model is to solve the problems of easy clogging and difficult cleaning of the drain pipe joint.

[0007] Another aspect of the utility model is to provide a refrigerating and freezing device which solves the above problems.

[0008] According to an aspect of the utility model, the utility model provides a drain pipe joint, which comprises a joint body.

[0009] The joint body has a main pipe part and a main drain part formed by extending downward from one end of the main pipe part; the lower part of the main drain part is funnel-shaped, and a main drain port is formed at the lower end.

[0010] A float ball is arranged in the main drain part; the float ball is configured to block the main drain port under the action of gravity, or to float up to open the main drain port after the formation of accumulated water in the main drain part.

[0011] Optionally, the drain pipe joint further comprises a drain plug.

[0012] The drain plug is arranged on the main drain part.

[0013] The drain plug comprises a main body part and a spring part.

[0014] The main body part is sleeved on the outer side wall of the main drain part, and the lower end of the main body part has an opening with a height lower than the main drain port.

[0015] The spring part is formed at the lower end of the main body part and extends to the inner side of the opening, and has a shape corresponding to the opening.

[0016] The spring part and the main body part have a connection part, and the spring part is configured to be elastically bent around the connection part.

[0017] Optionally, the spring part and the edge of the opening have a gap for water accumulation.

[0018] Optionally, the included angle between the main drain part and the main pipe part is greater than 90°.

[0019] Optionally, a positioning protrusion is formed on the outer side wall of the main drain part or the inner side wall of the main body part, and the outer side wall of the main drain part and the inner side wall of the main body part are adapted in shape to fix the drain plug on the joint body.

[0020] Optionally, the drain plug is an integrally formed part made of rubber.

[0021] Optionally, a branch opening is formed on the side of the main pipe part.

[0022] The joint body further has a branch pipe part arranged at the branch opening, and a secondary drain part in communication with the main pipe part through the branch pipe part; the lower end of the secondary drain part is formed with a secondary drain port.

[0023] Optionally, the lower end of the branch opening has a height higher than the bottom surface height of the main pipe part at the corresponding position.

[0024] Optionally, the lower part of the secondary drain part is funnel-shaped, and a float ball is arranged in the secondary drain part; the float ball is configured to block the secondary drain port under the action of gravity, or to float up to open the secondary drain port when water accumulates in the secondary drain part.

[0025] Optionally, the upper end of the secondary drain part is formed with a cleaning port.

[0026] The joint body further comprises a cover.

[0027] The cover is detachably arranged at the cleaning port.

[0028] According to another aspect of the present application, the present application provides a refrigeration and freezing device, which comprises a box body, a water pan, a drain pipe and a drain pipe joint.

[0029] The box body defines a storage compartment, a cooling chamber provided with an evaporator, and a compressor chamber provided with a compressor and / or a condenser.

[0030] The water pan is arranged in the press chamber.

[0031] The drain pipe has one end connected to the storage compartment and / or the cooling chamber and the other end extending above the water pan to guide the accumulated water in the storage compartment and / or the cooling chamber into the water pan.

[0032] The drain pipe joint is arranged at the end of the drain pipe above the water pan; the drain pipe joint is any one of the above drain pipe joints.

[0033] The drain pipe joint of the utility model comprises a joint body. The joint body has a main pipe part and a main drain part formed by extending downward from one end of the main pipe part; the lower part of the main drain part is funnel-shaped and has a main drain port formed at the lower end. A float ball is arranged in the main drain part; the float ball is configured to block the main drain port under the action of gravity or float up to open the main drain port after water accumulates in the main drain part. The funnel-shaped lower part of the main drain part cooperates with the float ball in the main drain part to close the main drain port by using the weight of the float ball, so that the drain pipe joint can block the main drain port when there is no water accumulation, and at the same time prevent the cold energy inside the storage compartment from leaking and the air in the press chamber from flowing back into the storage compartment through the drain pipe, thereby solving the sealing problem of the drain pipe of the refrigeration and freezing device.

[0034] Further, the drain pipe joint of the utility model further has a drain plug arranged on the main drain part, and the sealing effect of the drain pipe joint is improved by using the elastic sheet part at the opening of the lower end of the drain plug.

[0035] Further, the joint body of the drain pipe joint of the utility model further has a secondary drain part to replace the drainage function when the main drain part is blocked. The cleaning port at the upper end of the secondary drain part allows the drain pipe joint to be cleaned without disassembly, thereby reducing the cleaning difficulty of the drain pipe joint.

[0036] The above and other objects, advantages and features of the utility model will become more apparent from the following detailed description of some embodiments thereof, given by way of example only, in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] Some specific embodiments of the utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference signs in the drawings denote the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the drawings:

[0038] Figure 1 is a schematic view of a refrigeration and freezing device according to one embodiment of the utility model;

[0039] Figure 2is a schematic view of a drain pipe joint of a refrigerating and freezing device according to an embodiment of the present application;

[0040] Figure 3 is Figure 2 is a sectional view of the drain pipe joint shown in FIG. 1;

[0041] Figure 4 is Figure 2 is another sectional view of the drain pipe joint shown in FIG. 1;

[0042] Figure 5 is a sectional view of a drain pipe joint of a refrigerating and freezing device according to another embodiment of the present application;

[0043] Figure 6 is a sectional view of a drain pipe joint and a water pan of a refrigerating and freezing device according to still another embodiment of the present application. DETAILED DESCRIPTION

[0044] In the description of the present embodiments, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and thus cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application.

[0045] The terms "first", "second", and the like are merely used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first", "second", and the like can explicitly or implicitly include at least one of the features, i.e., one or more of the features.

[0046] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, and the like, unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features encompassed thereby, unless otherwise specifically described, this indicates that other features are not excluded and can further include other features.

[0047] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", "coupling" and the like are to be construed in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0048] In addition, in the description of the present application, the first feature is "above" or "below" the second feature. It can include that the first and second features are in direct contact, or it can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0049] That is, in the description of the present application, the first feature is "above", "above" and "above" the second feature. It includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" or "below" the second feature. It can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, devices, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, devices, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the embodiments of the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0052] Figure 1 is a schematic view of a refrigeration and freezing device 10 according to an embodiment of the present application; Figure 2 is a schematic view of a drain pipe joint of a refrigeration and freezing device 10 according to an embodiment of the present application.

[0053] Reference Figure 1As shown, the utility model provides a kind of refrigeration device 10, the box of refrigeration device 10 is defined in storage compartment, be provided with the cooling chamber (not shown in drawing) of evaporator, and be provided with the compressor and / or condenser of compressor warehouse 10A. Figure 1 It is the side view of refrigeration device 10, part of the box structure of refrigeration device 10 and evaporator, compressor and condenser are hidden in drawing to show the position of water pan 14, drain pipe 12 and drain pipe joint 13.It can be seen that compressor warehouse 10A is located in the lower rear side of the box, water pan 14 is arranged in compressor warehouse 10A, one end of drain pipe 12 is connected with the storage compartment and / or cooling chamber defined inside the box, and the other end extends above water pan 14 to guide the water in storage compartment and / or cooling chamber into water pan 14.Drain pipe joint 13 is arranged at the end of drain pipe 12 above water pan 14.

[0054] Condensation water is formed by the condensation of moisture in the air in storage compartment and evaporator during the operation of refrigeration device 10 such as refrigerator, in order to prevent excessive water from affecting the normal work of refrigeration device 10, refrigeration device 10 needs to be provided with drain pipe 12 to drain condensation water.Refrigeration device 10 usually sets water pan 14 in compressor warehouse 10A to collect condensation water, and accelerates the evaporation of condensation water by means of the heat generated by the operation of compressor.

[0055] In order to reduce the difficulty of processing and installation, drain pipe 12 usually adopts straight pipe design, that is to say, drain pipe 12 is basically a straight pipe, but this leads to the flow direction of condensation water discharged from drain pipe 12 uncontrollable and easy to splash everywhere in compressor warehouse 10A, and drain pipe 12 itself does not have sealing function, which cannot prevent the leakage of cold inside storage compartment and the backflow of air in compressor warehouse 10A into storage compartment through drain pipe 12.Therefore, the refrigeration device 10 of the embodiment sets drain pipe joint 13 at the end of drain pipe 12 to guide the flow direction of condensation water and solve the sealing problem of drain pipe 12.

[0056] It is considered that if impurities such as ice chips or dust fall into drain pipe joint 13 through drain pipe 12 and accumulate inside for a long time, it is easy to cause the blockage of drain pipe joint 13 and cannot work normally.Therefore, with reference to Figure 2As shown, in some alternative embodiments, the drain pipe joint 13 comprises a joint body 131 and a filter screen 132. The joint body 131 has a main pipe portion 1311, and a main drain portion 1312 formed downwardly from one end of the main pipe portion 1311; the lower end of the main drain portion 1312 is formed with a main drain opening 131A. The filter screen 132 is arranged in the main pipe portion 1311, and has a surface with a plurality of through holes. When the condensed water in the drain pipe 12 enters the drain pipe joint 13 and flows through the filter screen 132, the filter screen 132 can block larger impurities such as ice debris, preventing them from entering the main drain portion 1312 with the condensed water, thereby reducing the likelihood of the main drain portion 1312 being clogged.

[0057] At the same time, even if ice debris or dust enters the main drain portion 1312 with the condensed water and accumulates for a long time, causing the main drain portion 1312 to be clogged, the joint body 131 of the present embodiment is also provided with a branch opening 131B on the side of the main pipe portion 1311, and has a branch pipe portion 1313 arranged at the branch opening 131B, and a secondary drain portion 1314 in communication with the main pipe portion 1311 through the branch pipe portion 1313; the lower end of the secondary drain portion 1314 is formed with a secondary drain opening 131C. The secondary drain portion 1314 of the joint body 131 can alternatively function as a drain when the main drain portion 1312 is clogged, thereby solving the problem of the main drain portion 1312 being unable to function normally due to clogging. The combined design of the filter screen 132 and the secondary drain portion 1314 greatly extends the time before the drain pipe joint 13 is clogged, and overcomes the problem of the main drain portion 1312 of the drain pipe joint 13 being unable to function normally due to clogging.

[0058] Figure 3 is Figure 2 a sectional view of the drain pipe joint 13; Figure 4 is Figure 2 another sectional view of the drain pipe joint 13.

[0059] The filter screen 132 can block larger impurities such as ice debris, preventing them from entering the main drain portion 1312 with the condensed water, but the through holes on the surface of the filter screen 132 can also be clogged, preventing the condensed water from passing through the filter screen 132. To overcome this problem, in some alternative embodiments, at least part of the branch opening 131B is located on the side of the filter screen 132 away from the main drain portion 1312. Figure 3

[0060] ​When the main drainage portion 1312 is blocked, the condensed water will form water accumulation in the main drainage portion 1312 and cause the water level to rise. When the water level rises to be higher than the branch opening 131B of the main pipe portion 1311, the water accumulation can enter the auxiliary drainage portion 1314 from the branch opening 131B and be discharged through the auxiliary drainage port 131C. When the through holes on the surface of the filter screen 132 are also blocked, since at least part of the branch opening 131B of the present embodiment is located on the side of the filter screen 132 away from the main drainage portion 1312, the water accumulation can enter the auxiliary drainage portion 1314 from the branch opening 131B without passing through the filter screen 132 and be discharged through the auxiliary drainage port 131C, thereby further avoiding the problem that when the through holes on the surface of the filter screen 132 are also blocked, the drain connector 13 cannot work normally.

[0061] The branch opening 131B on the drain connector 13 of the present embodiment can be partially located on the side of the filter screen 132 away from the main drainage portion 1312 as shown in Figure 3 , or can be entirely located on the side of the filter screen 132 away from the main drainage portion 1312.

[0062] Referring to Figure 3 and Figure 4 , in some optional embodiments, the lower end of the branch opening 131B is higher than the height of the bottom surface of the main pipe portion 1311 at the corresponding position, so that the condensed water can flow preferentially to the main drainage portion 1312 from below the position of the branch opening 131B, avoiding the auxiliary drainage portion 1314 being blocked before the main drainage portion 1312.

[0063] In some optional embodiments, the branch pipe portion 1313 extends outwardly and upwardly from the branch opening 131B, so as to further reduce the condensed water entering the auxiliary drainage portion 1314 when the main drainage portion 1312 is not blocked.

[0064] In order to make the connection of the drain connector 13 and the drain pipe 12 more reliable, the drain pipe 12 and the drain connector 13 are usually connected in a structure that is difficult to disassemble, but this also makes it difficult to clean the drain connector 13 when it is blocked. In some optional embodiments, an insertion opening is formed in the side wall of the main pipe portion 1311, and the filter screen 132 is inserted into the main pipe portion 1311 through the insertion opening. The present embodiment uses the design of inserting the filter screen 132, so that when the filter screen 132 is blocked, the user can clean it by pulling it out, thereby reducing the difficulty of cleaning the drain connector 13.

[0065] Referring to Figure 3 and Figure 4 , in some optional embodiments, the angle α between the main drainage portion 1312 and the main pipe portion 1311 is greater than 90° and less than 180°. Furthermore, the diameter of the through hole with a higher height is larger.

[0066] The drain pipe 12 of the refrigeration and freezing unit 10 is not usually installed vertically. When the cooling chamber with the evaporator is located in the front area of ​​the refrigeration and freezing unit 10, the drain pipe 12 extends downwards and backwards accordingly. While ensuring that the main drain section 1312 drains downwards, the extension direction of the main drain pipe 1311 of the drain pipe connector 13 is usually designed to be the same as the extension direction of the drain pipe 12. Therefore, the main drain section 1312 and the main drain pipe 1311 will be connected as follows: Figure 3 An included angle α greater than 90° and less than 180° is formed as shown. The filter screen 132 is usually designed to be inserted into the main pipe 1311 perpendicular to the main pipe 1311, so the filter screen 132 is not located on a horizontal plane.

[0067] like Figure 4 As shown, in this embodiment, the through holes on the filter screen 132 are configured such that the diameter of the through holes with higher heights is larger. In addition to its filtering function, the filter screen 132 allows condensate in the drain pipe joint 13 to still pass through the filter screen 132 through the higher and larger diameter through holes even after the lower through holes are blocked. Simultaneously, the filter screen 132 no longer prevents smaller impurities from passing with the condensate; smaller impurities are more easily discharged with the condensate and are less likely to clog the main drain section 1312. Through this design, the drain pipe joint 13 can balance the clogging time of the filter screen 132 and the main drain section 1312, extending the overall clogging cycle of the drain pipe joint 13.

[0068] Of course, in some alternative embodiments, the included angle α between the main drain section 1312 and the main pipe section 1311 can also be equal to 180°, that is, the main drain section 1312 and the main pipe section 1311 extend vertically. In this case, the diameter of the through holes on the filter screen 132 can also be configured to be the same.

[0069] refer to Figure 4 As shown, in some alternative embodiments, the lower part of the secondary drainage section 1314 is funnel-shaped, and a float 1315 is provided inside the secondary drainage section 1314; the float 1315 is configured to block the secondary drainage outlet 131C under the action of gravity, or float up to open the secondary drainage outlet 131C after water accumulates in the secondary drainage section 1314.

[0070] In order to improve the sealing effect of the drain pipe joint 13, the lower end of the auxiliary drainage part 1314 is designed in a funnel shape, and a floating ball 1315 is arranged in the auxiliary drainage part 1314. The cross section of the lower part of the funnel-shaped auxiliary drainage part 1314 is circular, which can tightly fit the surface of the spherical floating ball 1315, so that when the air pressure inside and outside the auxiliary drainage part 1314 is balanced, the floating ball 1315 can block the auxiliary drainage port 131C under the action of gravity and prevent the air inside and outside from communicating, thereby preventing the cold energy inside the storage compartment from leaking and the air in the press chamber 10A from flowing back into the storage compartment through the drain pipe 12.

[0071] In particular, after the refrigeration and freezing device 10 is opened and closed once, the temperature of the air inside the storage compartment decreases due to the refrigeration of the refrigeration and freezing device 10, the volume of the cold air shrinks, resulting in negative pressure inside the storage compartment, making it difficult to open the door of the refrigeration and freezing device 10. The floating ball 1315 of the auxiliary drainage part 1314 of the embodiment can be pushed upward by the air pressure difference when negative pressure is generated inside the storage compartment, so that air can enter the storage compartment from the auxiliary drainage port 131C, thereby balancing the air pressure inside and outside, and making it easy to open the door of the refrigeration and freezing device 10.

[0072] In some optional embodiments, the upper end of the auxiliary drainage part 1314 is formed with a cleaning port. The drain pipe joint 13 further comprises a cover 134 which is detachably arranged at the cleaning port. When the main drainage part 1312 of the drain pipe joint 13 of the embodiment is blocked, the user can open the cover 134 arranged at the cleaning port and pour clean water or cleaning agent into the drain pipe joint 13 through the cleaning port to clean and dredge the main drainage part 1312. The size of the cleaning port can be designed to be larger than the size of the floating ball 1315, so as to install the floating ball 1315 into the auxiliary drainage part 1314 from the cleaning port.

[0073] The utility model also provides three different main drainage part 1312 sealing designs, in order to distinguish, the following three designs will be called first design, second design and third design respectively. Figure 3 Corresponding to the drain pipe joint 13 of the first design of the utility model, referring to Figure 3 In some optional embodiments, the lower part of the main drainage part 1312 is funnel-shaped, and the main drainage port 131A is formed at the lower end; and the floating ball 1316 is arranged in the main drainage part 1312; the floating ball 1316 is configured to block the main drainage port 131A under the action of gravity, or float up to open the main drainage port 131A after water accumulation in the main drainage part 1312.

[0074] The lower part of the main drainage part 1312 in this embodiment is funnel-shaped, and its cross section is circular, which can tightly fit the surface of the spherical float ball 1316. Therefore, when the air pressure inside and outside the main drainage part 1312 is balanced, the float ball 1316 can block the main drainage port 131A under the action of gravity and prevent the air inside the compressor chamber 10A from flowing back into the storage compartment through the drain pipe 12, thereby preventing the cold energy inside the storage compartment from leaking and the air inside the compressor chamber 10A from flowing back into the storage compartment through the drain pipe 12.

[0075] Further, in some alternative embodiments, the drain pipe joint 13 further comprises a drain plug 133. The drain plug 133 is arranged on the main drainage part 1312. The drain plug 133 comprises a main body part 1331 and a spring part 1332. The main body part 1331 is sleeved on the outer sidewall of the main drainage part 1312; the lower end of the main body part 1331 has an opening, and the height of the opening is lower than the main drainage port 131A. The spring part 1332 is formed at the lower end of the main body part 1331 and extends to the inner side of the opening, and its shape corresponds to the opening. The spring part 1332 and the main body part 1331 have a connection therebetween, and the spring part 1332 is configured to be elastically bent around the connection.

[0076] The drain plug 133 can further improve the sealing effect of the drain pipe joint 13 on the main drainage part 1312. In some alternative embodiments, the spring part 1332 blocks the opening at the lower end of the main body part 1331 and opens the opening under the gravity of the accumulated water to discharge the accumulated water, thereby closing the main drainage port 131A when there is no accumulated water to prevent the cold energy inside the storage compartment from leaking and the air inside the compressor chamber 10A from flowing back into the storage compartment through the drain pipe 12. In other alternative embodiments, the spring part 1332 and the edge of the opening have a gap for the accumulated water to pass through. When there is a large amount of accumulated water in the main drainage part 1312, the accumulated water can be discharged from the gap, and when there is a small amount of accumulated water in the main drainage part 1312, the accumulated water will remain in the gap due to its own tension to achieve a sealing effect, thereby preventing the cold energy inside the storage compartment from leaking and the air inside the compressor chamber 10A from flowing back into the storage compartment through the drain pipe 12.

[0077] Figure 5 is a sectional view of the drain pipe joint 13 of the refrigeration and freezing device 10 according to another embodiment of the present application.

[0078] Figure 5 The drain pipe joint 13 corresponding to the second design of the present application is described with reference to Figure 5As shown, in some alternative embodiments, the drain pipe joint 13 further comprises a drain plug 133. The drain plug 133 is arranged on the main drain portion 1312; the lower end of the drain plug 133 forms a spring portion 1332 for closing the main drain port 131A, and is configured to be pushed against the main drain port 131A by its own stress or by the water accumulated in the main drain portion 1312 to open the main drain port 131A.

[0079] In the present embodiment, the spring portion 1332 of the drain plug 133 is pushed against and adheres to the main drain port 131A by the lower end of the main drain portion 1312, and the drain plug 133 has stress to restore the spring portion 1332 to its original position under the pushing of the main drain portion 1312, so that the spring portion 1332 tightly adheres to the main drain port 131A, and prevents the cold energy inside the storage compartment from leaking and the air in the press chamber 10A from flowing back into the storage compartment through the drain pipe 12.

[0080] Further, in some alternative embodiments, the drain plug 133 further comprises a main body portion 1331. The main body portion 1331 is sleeved on the outer side wall of the main drain portion 1312; the lower end of the main body portion 1331 is close to the edge of the main drain port 131A. The spring portion 1332 is formed at the lower end of the main body portion 1331 and corresponds in shape to the main drain port 131A. The drain plug 133 is configured to be pushed against the spring portion 1332 by the lower end of the main drain portion 1312 to have stress to close the main drain port 131A.

[0081] From Figure 3 and Figure 5 It can be seen that the drain plug 133 in the present embodiment is only different from the drain plug 133 in the first design in that the spring portion 1332 is pushed outward when installed on the main drain portion 1312 of the drain pipe joint 13, and in fact the drain plug 133 in the first design and the second design can be exactly the same drain plug 133. That is, in the case of needing to produce multiple drain pipe joints 13 at the same time, the technical solution of the present utility model can reduce the mold cost by producing one drain plug 133 and using it in the drain pipe joints 13 of the two designs.

[0082] In the present embodiment, the lower end of the main body portion 1331 close to the edge of the main drain port 131A means that part of the lower end of the main body portion 1331 is close to part of the edge of the main drain port 131A, that is, it is not limited that the lower end of the main body portion 1331 is close to the circumferential side of the main drain port 131A.

[0083] Further, in some alternative embodiments, the main drainage portion 1312 comprises a straight pipe segment 13121 and an elbow segment 13122. The straight pipe segment 13121 extends downward from one end of the main pipe portion 1311, and the main body portion 1331 is sleeved on the outer sidewall of the straight pipe segment 13121. The elbow segment 13122 extends in a downwardly oblique direction from the lower end of the straight pipe segment 13121, and the main drainage opening 131A is formed at the lower end of the elbow segment 13122 and faces the downwardly oblique direction.

[0084] Reference Figure 5 As shown in the drawings, the elbow segment 13122 of the main drainage portion 1312 of the present embodiment extends in a downwardly oblique direction and causes the main drainage opening 131A to face the downwardly oblique direction, the lower end of the main body portion 1331 of the drainage plug 133 is close to the upper edge of the drainage opening, and the spring portion 1332 extends out at the close position. The spring portion 1332 is pushed against by the elbow segment 13122 of the main drainage portion 1312 and elastically bends around the connection between the spring portion 1332 and the main body portion 1331.

[0085] Further, in some alternative embodiments, the elbow segment 13122 of the main drainage portion 1312 can be designed to be detachably arranged relative to the straight pipe segment 13121, so as to facilitate cleaning of the main drainage portion 1312.

[0086] In addition, in some alternative embodiments, the funnel-shaped structure at the lower part of the main drainage portion 1312 in the first design can also be designed to be detachably arranged relative to other parts of the main drainage portion 1312, and the funnel-shaped structure at the lower part of the main drainage portion 1312 in the first design can be designed as a replaceable part relative to the elbow segment 13122 of the main drainage portion 1312 in the second design, so as to facilitate modular and universal design and reduce the mold opening cost of the drainage pipe connector 13.

[0087] The funnel-shaped structure at the lower part of the main drainage portion 1312 in the first design relative to other parts of the main drainage portion 1312, and the elbow segment 13122 of the main drainage portion 1312 in the second design relative to the straight pipe segment 13121 can be designed to be fixed by means of gluing, buckling or magnetic attraction, or can be fixed by means of the drainage plug 133 installed on the main drainage portion 1312, which is not limited here.

[0088] Figure 6 is a sectional view of the drainage pipe connector 13 and the water pan 14 of the refrigeration and freezing device 10 according to another embodiment of the present utility model.

[0089] Figure 6 Corresponding to the drainage pipe connector 13 of the third design of the present utility model, reference Figure 6As shown, in some alternative embodiments, the bottom surface of the water pan 14 of the refrigerator-freezer 10 is provided with an upwardly open water seal groove 141. The drain connector 13 is arranged above the water pan 14. The drain connector 13 further comprises a drain port extension 135. The drain port extension 135 is arranged on the main drain portion 1312 and extends into the water seal groove 141 at a lower end. The refrigerator-freezer 10 is configured such that water in the drain connector 13 is drained downward from the main drain port 131A into the drain port extension 135 and flows out of the lower end of the drain port extension 135 into the water seal groove 141.

[0090] Figure 6 The area in the water seal groove 141 where water can accumulate is shown in dashed lines. The upwardly open water seal groove 141 is able to store some of the accumulated water, seal the lower end of the drain port extension 135 extending into the water seal groove 141, and at the same time prevent the leakage of cold air from the interior of the storage compartment and the backflow of air from the air chamber 10A into the storage compartment through the drain pipe 12, thereby solving the sealing problem of the drain pipe 12 of the refrigerator-freezer 10.

[0091] Condensed water entering the drain port extension 135 from the main drain port 131A can flow out of the drain port extension 135 from the lower end of the drain port extension 135 and into the water seal groove 141. When the water seal groove 141 is filled with water, any further condensed water entering the water seal groove 141 will overflow from above the water seal groove 141 into the water pan 14.

[0092] In the present embodiment, the water seal groove 141 can be integrally formed with the water pan 14 or can be a separate part that is detachable from the water pan 14. Designing the water seal groove 141 as a separate part that is detachable from the water pan 14 can facilitate modular and universal design and reduce the cost of opening the mold for the water pan 14.

[0093] Further, in some alternative embodiments, there is a gap between the lower end of the drain port extension 135 and the bottom surface of the water seal groove 141, and there is a gap between the outer side wall of the drain port extension 135 and the inner side wall of the water seal groove 141.

[0094] In the present embodiment, there is a gap between the lower end of the drain port extension 135 and the bottom surface of the water seal groove 141, and there is a gap between the outer side wall of the drain port extension 135 and the inner side wall of the water seal groove 141. Therefore, water can flow between the lower end of the drain port extension 135 and the bottom surface of the water seal groove 141, and between the outer side wall of the drain port extension 135 and the inner side wall of the water seal groove 141, and overflow from above the water seal groove 141 into the water pan 14 when there is too much water.

[0095] In other alternative embodiments, the lower end of the drain port extension 135 can also extend to the bottom surface of the water seal groove 141, and the lower end of the drain port extension 135 has a through hole on the side wall thereof to allow the accumulated water to flow into the water seal groove 141 through the through hole.

[0096] Further, in some alternative embodiments, the water pan 14 extends upward from the upper end of the water seal groove 141 to form a fixing wall 142, and at least a portion of the fixing wall 142 is in contact with the drain port extension 135. The fixing wall 142 extends upward from a portion of the upper end of the water seal groove 141 and clamps the drain port extension 135. The accumulated water in the water seal groove 141 can overflow from above the portion of the water seal groove 141 where the fixing wall 142 does not extend upward.

[0097] The design of the drain port extension 135 of the present embodiment is also to reduce the mold cost and facilitate the adjustment of the sealing design type of the main drain portion 1312 adopted in the production process of the refrigerator-freezer 10 at a lower cost.

[0098] Further, in some alternative embodiments, the lower end of the main drain portion 1312 is higher than the upper end of the water seal groove 141, and thus the main drain port 131A at the lower end of the main drain portion 1312 is higher than the liquid level of the accumulated water in the water seal groove 141, and noise is less likely to be generated when air enters the water seal groove 141 through the drain pipe 12.

[0099] In addition, in some alternative embodiments, the drain plug 133 in the first design and the second design, and the drain port extension 135 in the third design can be an integrally formed member made of rubber material.

[0100] In the third design, in order to detachably fix the drain port extension 135 on the main drain portion 1312, in some alternative embodiments, a positioning protrusion is formed on the outer side wall of the main drain portion 1312 or the inner side wall of the drain port extension 135, and the shape of the outer side wall of the main drain portion 1312 is adapted to the shape of the inner side wall of the drain port extension 135, so that the drain port extension 135 is fixed on the joint body 131. For example, as shown in FIG. 13, the positioning protrusion is formed on the inner side wall of the drain port extension 135 and protrudes toward the main drain portion 1312 of the joint body 131, and a recess with a shape adapted to the positioning protrusion is formed on the main drain portion 1312 of the joint body 131. In the first design and the second design, in order to detachably fix the drain plug 133 on the main drain portion 1312, in some alternative embodiments, a positioning protrusion is formed on the outer side wall of the main drain portion 1312 or the inner side wall of the main body portion 1331, and the shape of the outer side wall of the main drain portion 1312 is adapted to the shape of the inner side wall of the main body portion 1331, so that the drain plug 133 is fixed on the joint body 131. Figure 6 In the third design, in order to detachably fix the drain port extension 135 on the main drain portion 1312, in some alternative embodiments, a positioning protrusion is formed on the outer side wall of the main drain portion 1312 or the inner side wall of the drain port extension 135, and the shape of the outer side wall of the main drain portion 1312 is adapted to the shape of the inner side wall of the drain port extension 135, so that the drain port extension 135 is fixed on the joint body 131. For example, as shown in FIG. 13, the positioning protrusion is formed on the inner side wall of the drain port extension 135 and protrudes toward the main drain portion 1312 of the joint body 131, and a recess with a shape adapted to the positioning protrusion is formed on the main drain portion 1312 of the joint body 131. In the first design and the second design, in order to detachably fix the drain plug 133 on the main drain portion 1312, in some alternative embodiments, a positioning protrusion is formed on the outer side wall of the main drain portion 1312 or the inner side wall of the main body portion 1331, and the shape of the outer side wall of the main drain portion 1312 is adapted to the shape of the inner side wall of the main body portion 1331, so that the drain plug 133 is fixed on the joint body 131.

[0101] At this point, those skilled in the art should recognize that, although the present application has been shown and described herein in detail as a number of exemplary embodiments, various other modifications and changes can be made to the present application without departing from the spirit and scope of the present application as defined in the claims. Accordingly, the scope of the present application should be understood to cover all such other modifications and changes.

Claims

1. A drain pipe connector, characterized in that... include: The connector body has a main pipe section and a main drainage section extending downward from one end of the main pipe section; the lower part of the main drainage section is funnel-shaped, and a main drainage outlet is formed at the lower end; and A float is provided inside the main drainage section; the float is configured to block the main drainage outlet under the action of gravity, or to float up to open the main drainage outlet after water accumulates in the main drainage section.

2. The drain pipe joint according to claim 1, characterized in that... Also includes: A drain plug is installed on the main drain section; The drain plug includes: A main body is fitted onto the outer wall of the main drain section; the lower end of the main body has an opening, and the height of the opening is lower than that of the main drain outlet; and A spring-loaded portion is formed at the lower end of the main body and extends toward the inside of the opening, and its shape corresponds to the opening; The spring portion has a connection point with the main body portion, and the spring portion is configured to be elastically bent around the connection point.

3. The drain pipe joint according to claim 2, characterized in that... There is a gap between the spring section and the edge of the opening to allow water to pass through.

4. The drain pipe joint according to claim 2, characterized in that... The angle between the main drainage section and the main pipe section is greater than 90°.

5. The drain pipe joint according to claim 2, characterized in that... A positioning protrusion is formed on the outer wall of the main drainage section or the inner wall of the main body, and the outer wall of the main drainage section is adapted to the shape of the inner wall of the main body so that the drainage plug is fixed on the connector body.

6. The drain pipe joint according to claim 2, characterized in that... The drain plug is a one-piece molded part made of rubber.

7. The drain pipe joint according to claim 1, characterized in that... A branch opening is provided on the side of the main unit; The connector body also has a branch pipe section disposed at the branch opening, and a secondary drainage section communicating with the main pipe section through the branch pipe section; a secondary drainage outlet is formed at the lower end of the secondary drainage section.

8. The drain pipe joint according to claim 7, characterized in that... The lower end of the branch opening is higher than the bottom surface of the main pipe at the corresponding position.

9. The drain pipe joint according to claim 7, characterized in that... The lower part of the secondary drainage section is funnel-shaped, and a float is provided inside the secondary drainage section; the float is configured to block the secondary drainage outlet under the action of gravity, or to float up to open the secondary drainage outlet after water accumulates in the secondary drainage section.

10. The drain pipe joint according to claim 7, characterized in that... A cleaning port is formed at the upper end of the secondary drainage section; The connector body also includes: The cover is detachably mounted on the cleaning port.

11. A refrigeration and freezing apparatus, characterized in that... include: The housing defines a storage compartment, a cooling compartment with an evaporator, and a compressor compartment with a compressor and / or condenser. A water receiving tray is installed inside the compressor chamber; A drain pipe, one end of which is connected to the storage room and / or the cooling room, and the other end extends above the water tray to guide the accumulated water in the storage room and / or the cooling room into the water tray; as well as A drain pipe connector is disposed at one end of the drain pipe located above the water receiving tray; the drain pipe connector is a drain pipe connector according to any one of claims 1 to 10.

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