Sealing ring, cold tank and water dispenser

Abstract

The utility model provides a sealing ring, a cold tank and a water dispenser. The sealing ring is used for the liquid container, the liquid container comprises a container body with an opening and a cover body inserted in the opening, the sealing ring comprises a first annular part, a second annular part and a third annular part, the first annular part surrounds the periphery of the second annular part, and the third annular part is connected with the first annular part and the second annular part; the first annular part, the second annular part and the third annular part define a mounting groove allowing the side wall of the opening to be inserted therein, the first annular part can be attached to the outer surface of the side wall of the opening, and the second annular part can be attached to the outer side face of the cover body. When the sealing ring and the liquid container are assembled, the side wall at the opening of the container body is inserted into the mounting groove, and the first annular part is attached to the outer surface of the side wall at the opening of the container body, so that liquid is prevented from seeping from the assembly position of the sealing ring and the container body; meanwhile, the second annular part is attached to the outer side face of the cover body so that liquid can be prevented from seeping from the assembly position of the sealing ring and the cover body, and the sealing effect is guaranteed.

Description

Technical Field

[0001] The present application belongs to the field of sealing technology, and in particular relates to a sealing ring, a cold can and a water dispenser. Background Art

[0002] In order to prevent the water level in the cold tank of the water dispenser from being too high, the water in the cold tank will flow from the top of the cold tank into the inside of the product, which will cause problems such as product rust, circuit short circuit, and water accumulation in the user's home, a sealing ring is usually put on the outside of the top cover with an interference fit. After the top cover and the cold tank are assembled, the sealing ring is squeezed inward by the cold tank, and the compression deformation of the sealing ring is used to perform a sealing effect.

[0003] However, the fit between the existing sealing ring and the cold can is unstable, and local extrusion and wrinkling are prone to occur during assembly and transportation, thereby generating assembly gaps and causing sealing failure. Utility Model Content

[0004] The embodiments of the present application provide a sealing ring, a cold tank and a water dispenser to solve the problem that an assembly gap is easily formed between the existing sealing ring and the cold tank, resulting in sealing failure.

[0005] In a first aspect, an embodiment of the present application provides a sealing ring, which is used for a liquid container, wherein the liquid container includes a container body having an opening and a cover body inserted in the opening, the sealing ring includes a first annular portion, a second annular portion and a third annular portion, the first annular portion surrounds the periphery of the second annular portion, and the third annular portion connects the first annular portion and the second annular portion; the first annular portion, the second annular portion and the third annular portion form an installation groove for inserting the side wall at the opening, the first annular portion can be fitted with the outer surface of the side wall at the opening, and the second annular portion can be fitted with the outer side surface of the cover body.

[0006] Optionally, the sealing ring also includes an annular limiting portion, which is protruding from the side of the first annular portion away from the second annular portion and connected to the third annular portion, and the first annular portion, the second annular portion, the third annular portion and the annular limiting portion form the mounting groove; the side wall at the opening is bent outward to form a bent portion, and the bent portion can abut against the top surface of the annular limiting portion.

[0007] Optionally, the surface roughness Ra of the top surface of the annular limiting portion is greater than 6 μm.

[0008] Optionally, the thickness of the second annular portion gradually decreases from an end close to the third annular portion to an end away from the third annular portion.

[0009] Optionally, one end of the second annular portion close to the third annular portion is recessed toward the inner side of the mounting groove.

[0010] Optionally, the first annular portion has an interference fit with the container body, and the interference amount of the first annular portion is 15% to 30%; and / or the first annular portion has a first sealing surface that fits with the outer surface of the side wall at the opening, and the surface roughness Ra of the first sealing surface is less than 1.6 μm.

[0011] Optionally, the second annular portion has a second sealing surface that is in contact with the outer side surface of the cover body, and the surface roughness Ra of the second sealing surface is less than 1.6 μm.

[0012] In the second aspect, an embodiment of the present application also provides a cold can, which includes a cold can body, a top cover and the above-mentioned sealing ring, wherein an opening is provided at the top of the cold can body, and the top cover is inserted into the opening; the side wall at the opening is inserted into the mounting groove of the sealing ring, and the second annular portion of the sealing ring is located between the side wall of the top cover and the side wall of the cold can body, the second annular portion is in contact with the outer side surface of the cover body, and the first annular portion of the sealing ring is in contact with the outer surface of the side wall at the opening.

[0013] Optionally, there is a gap between the second annular portion of the sealing ring and the side wall of the opening.

[0014] In a third aspect, an embodiment of the present application further provides a water dispenser, which includes the above-mentioned cold tank.

[0015] The sealing ring provided in the embodiment of the present application is configured such that the second annular portion is arranged around the periphery of the first annular portion, the third annular portion connects the first annular portion and the second annular portion, and the first annular portion, the second annular portion and the third annular portion form an installation groove. Therefore, when the sealing ring is assembled with the liquid container, the side wall at the opening of the container body can be inserted into the installation groove, and the first annular portion is fit with the outer surface of the side wall at the opening of the container body to prevent liquid from seeping out from the assembly point of the sealing ring and the container body, and at the same time, the second annular portion is fit with the outer side surface of the cover body to prevent liquid from seeping out from the assembly point of the sealing ring and the cover body, thereby achieving effective and reliable sealing of the liquid in the liquid container and ensuring the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. In the following description, the same reference numerals represent the same parts.

[0017] Figure 1A schematic diagram of the structure of the sealing ring provided in an embodiment of the present application.

[0018] Figure 2 This is a first cross-sectional schematic diagram of the sealing ring provided in an embodiment of the present application.

[0019] Figure 3 for Figure 2 Front view of the seal shown.

[0020] Figure 4 This is a second cross-sectional schematic diagram of the sealing ring provided in an embodiment of the present application.

[0021] Figure 5 This is a schematic diagram of the assembly of the cold tank body and the sealing ring provided in an embodiment of the present application.

[0022] Figure 6 for Figure 5 The diagram shown is a schematic diagram of the cold tank body and the sealing ring after assembly.

[0023] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of local A in FIG.

[0024] Figure 8 This is a schematic diagram of the assembly of the top cover, cold tank body and sealing ring provided in an embodiment of the present application.

[0025] Figure 9 This is a schematic diagram of the first structure of the water dispenser provided in an embodiment of the present application.

[0026] Figure 10 for Figure 9 The enlarged structural diagram of part B of the water dispenser is shown.

[0027] Figure 11 This is a schematic diagram of the second structure of the water dispenser provided in an embodiment of the present application.

[0028] Figure 12 for Figure 11 The enlarged structural schematic diagram of part C of the water dispenser is shown.

[0029] Figure 13 for Figure 11 The enlarged structural schematic diagram of part D of the water dispenser is shown.

[0030] Figure 14 This is a third structural schematic diagram of the water dispenser provided in an embodiment of the present application.

[0031] Figure 15 for Figure 14 An enlarged structural schematic diagram of a part E of the water dispenser is shown.

[0032] Description of Figure Numbers:

[0033] 100, sealing ring; 101, mounting groove; 110, first annular portion; 111, first sealing surface; 120, second annular portion; 121, second sealing surface; 122, wavy structure; 130, third annular portion; 140, annular limiting portion; 141, top surface; 200, water dispenser; 201, gap; 210, container body; 210a, cold tank body; 211, opening; 212, bending portion; 220, cover body; 220a, top cover. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0036] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0037] The embodiment of the present application provides a sealing ring 100, which is used for a liquid container, such as Figures 5 to 15 As shown, the liquid container includes a container body 210 having an opening 211 and a cover 220 inserted into the opening 211; Figures 1 to 4As shown, the sealing ring 100 includes a first annular portion 110, a second annular portion 120 and a third annular portion 130. The first annular portion 110 surrounds the outer periphery of the second annular portion 120, and the third annular portion 130 connects the first annular portion 110 and the second annular portion 120; the first annular portion 110, the second annular portion 120 and the third annular portion 130 form an installation groove 101 for inserting the side wall at the opening 211 of the container body 210, the first annular portion 110 can fit with the outer surface of the side wall at the opening 211 of the container body 210, and the second annular portion 120 can fit with the outer side surface of the cover body 220.

[0038] The sealing ring 100 provided in the embodiment of the present application is configured such that the first annular portion 110 is arranged around the outer periphery of the second annular portion 120, the third annular portion 130 connects the first annular portion 110 and the second annular portion 120, and the first annular portion 110, the second annular portion 120 and the third annular portion 130 form an installation groove 101. Therefore, when the sealing ring 100 is assembled with the liquid container, the side wall at the opening 211 of the container body 210 can be inserted into the installation groove 101, and the first annular portion 110 is fit with the outer surface of the side wall at the opening 211 of the container body 210 to prevent liquid from seeping out from the assembly point of the sealing ring 100 and the container body 210, and at the same time, the second annular portion 120 is fit with the outer side surface of the cover body 220 to prevent liquid from seeping out from the assembly point of the sealing ring 100 and the cover body 220, thereby achieving effective and reliable sealing of the liquid in the liquid container and ensuring the sealing effect.

[0039] It is understandable that since both the container body 210 and the lid 220 are rigid objects and can only deform very slightly, when the central axes of the container body 210 and the lid 220 are not aligned or when the operator operates improperly, the sealing rings currently on the market can easily cause one side to be unable to be squeezed, resulting in a gap and causing water leakage. The sealing principle of the sealing ring 100 and the lid 220 of the present application is to form an external seal by the outer side surface of the lid 220 and the second annular portion 120. Therefore, when the lid 220 is inserted into the container body 210 with the sealing ring 100, as long as the outer side surface of the lid 220 can contact the second annular portion 120 of the sealing ring 100, the second annular portion 120 of the sealing ring 100 can radially compensate for these specific conditions. Even if the central axes of the container body 210 and the lid 220 are not aligned or when the operator operates improperly, the second annular portion 120 of the sealing ring 100 can be bent and deformed and completely fit with the outer side surface of the lid 220, ensuring that the sealing effect is achieved.

[0040] Optional, such as Figures 1 to 4As shown, the sealing ring 100 also includes an annular limiting portion 140, which is protruding from the side of the first annular portion 110 away from the second annular portion 120 and connected to the third annular portion 130. The first annular portion 110, the second annular portion 120, the third annular portion 130 and the annular limiting portion 140 form an installation groove 101; the side wall at the opening 211 of the container body 210 is bent outward to form a bending portion 212, and the bending portion 212 can abut against the top surface 141 of the annular limiting portion 140. By providing the annular limiting portion 140, the top surface 141 of the annular limiting portion 140 can limit the upward movement of the sealing ring 100 when it abuts against the bent portion 212, so that when the operator installs the sealing ring 100 to the container body 210, a support surface can be provided for the operator to support the bent portion 212, thereby preventing the side of the first annular portion 110 that is first sleeved on the container body 210 from detaching when the operator installs the other side of the first annular portion 110 on the container body 210, and at the same time, it can also prevent the sealing ring 100 from detaching from the container body 210 when the cover body 220 is installed. Specifically, when the operator needs to install the sealing ring 100 on the container body 210, he can first put one side of the first annular portion 110 on the container body 210, and make the bent portion 212 of the container body 210 abut against the top surface 141 of the annular limiting portion 140. Under the limiting action of the annular limiting portion 140, the other side of the first annular portion 110 can be put on the container body 210 with a little force.

[0041] Optionally, the surface roughness Ra of the top surface 141 of the annular limiting portion 140 is greater than 6 μm, that is, the surface roughness Ra of the top surface 141 of the annular limiting portion 140 is greater than or equal to 6 μm. It is understood that the surface roughness of the top surface 141 of the annular limiting portion 140 should be as rough as possible to prevent the sealing ring 100 from separating from the container body 210 when the sealing ring 100 or the cover 220 is installed on the container body 210.

[0042] In some embodiments of the present application, the thickness of the second annular portion 120 gradually decreases from one end close to the third annular portion 130 to one end away from the third annular portion 130 , for example. Figures 2 to 4 The second annular portion 120 shown in FIG is a structure with a thick top and a thin bottom. This is advantageous in that when the cover 220 is installed, the second annular portion 120 is away from one end of the third annular portion 130 (e.g. Figures 2 to 4 The bottom of the second annular portion 120 in the middle) can better produce bending deformation, so as to better fit the outer side of the cover body 220, and avoid the second annular portion 120 being stretched and generating an assembly gap 201 when the cover body 220 generates a downward force on the sealing ring 100, thereby affecting the sealing effect.

[0043] Optional, such as Figure 4 and Figure 15As shown, the end of the second annular portion 120 near the third annular portion 130 is recessed toward the inner side of the mounting groove 101, so that the end of the second annular portion 120 near the third annular portion 130 is wavy. The wavy structure 122 has an axial compensation effect, which can reduce the axial deformation of the sealing ring 100 during the installation of the cover body 220, and prevent the sealing ring 100 from stretching and thus generating an assembly gap 201, thereby affecting the sealing effect of the product. In other words, by designing the end of the second annular portion 120 near the third annular portion 130 to be recessed toward the inner side of the mounting groove 101, the axial deformation of the sealing ring 100 when the cover body 220 is installed can be reduced, so that the sealing ring 100 is compensated in the axial direction, thereby ensuring the sealing effect after the sealing ring 100 and the cover body 220 are assembled, and preventing the liquid in the container body 210 from leaking from the assembly point between the sealing ring 100 and the cover body 220.

[0044] In some embodiments of the present application, the first annular portion 110 is interference fit with the container body 210 to ensure the sealing effect of the sealing ring 100. By adopting such a design, after the sealing ring 100 is installed on the container body 210, even if the liquid in the container body 210 submerges the top of the container body 210, the water can be well locked under the action of the first annular portion 110 to prevent water from flowing out from the top of the container body 210.

[0045] Optionally, the interference of the first annular portion 110 is 15% to 30%. For example, the interference of the first annular portion 110 can be 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29% or 30%, etc., and can be set according to actual needs.

[0046] Optionally, the first annular portion 110 has a first sealing surface 111 that mates with the outer surface of the sidewall at the opening 211 of the container body 210. The surface roughness Ra of the first sealing surface 111 is 1.6 μm or less, i.e., the surface roughness Ra of the first sealing surface 111 is less than or equal to 1.6 μm. It is understood that the smaller the surface roughness of the first sealing surface 111, the better (i.e., the smoother the surface of the first sealing surface 111, the better). This makes it easier for the operator to install the sealing ring 100 on the container body 210, and also allows the sealing ring 100 to fit more closely with the outer surface of the container body 210, preventing water from seeping from the assembly point between the container body 210 and the sealing ring 100.

[0047] Optionally, the second annular portion 120 has a second sealing surface 121 that is in contact with the outer side surface of the cover body 220. The surface roughness Ra of the second sealing surface 121 is less than 1.6 μm, that is, the surface roughness Ra of the second sealing surface 121 is less than or equal to 1.6 μm. It is understood that the smaller the surface roughness of the second sealing surface 121, the better (that is, the smoother the surface of the second sealing surface 121, the better). This allows for smoother assembly when the cover body 220 is installed, preventing the sealing ring 100 from stretching in the axial direction and creating an assembly gap 201, which would affect the sealing effect. It also allows the second sealing surface 121 to fit more closely with the outer side surface of the cover body 220, preventing water from seeping from the assembly point between the cover body 220 and the sealing ring 100.

[0048] In some embodiments of the present application, the sealing ring 100 is applied to a cold can, that is, the liquid container is a cold can, and the container body 210 and the cover body 220 are the cold can body 210a and the top cover 220a of the cold can respectively.

[0049] The present application also provides a cold tank, such as Figures 5 to 15 As shown, the cold tank includes a cold tank body 210a, a top cover 220a and a sealing ring 100. The specific structure of the sealing ring 100 refers to the above embodiment; an opening 211 is provided at the top of the cold tank body 210a, and the top cover 220a is inserted into the opening 211; the side wall at the opening 211 of the cold tank body 210a is inserted into the mounting groove 101 of the sealing ring 100, and the second annular portion 120 of the sealing ring 100 is located between the side wall of the top cover 220a and the side wall of the cold tank body 210a, and the second annular portion 120 is in contact with the outer side surface of the cover body 220, and the first annular portion 110 of the sealing ring 100 is in contact with the outer surface of the side wall at the opening 211 of the cold tank body 210a.

[0050] The cold can provided in the embodiment of the present application effectively and reliably seals the liquid in the cold can by inserting the sidewall at the opening 211 of the cold can body 210a into the mounting groove 101 of the sealing ring 100, and making the second annular portion 120 of the sealing ring 100 fit the outer surface of the sidewall at the opening 211 of the cold can body 210a to prevent liquid from seeping out from the assembly point between the sealing ring 100 and the cold can body 210a. At the same time, making the first annular portion 110 of the sealing ring 100 fit the outer side surface of the top cover 220a to prevent liquid from seeping out from the assembly point between the sealing ring 100 and the top cover 220a, thereby ensuring a sealing effect. In addition, the annular stopper 140 of the sealing ring 100 can ensure the ease of assembly of the sealing ring 100, improve production efficiency, and can also prevent the sealing ring 100 from separating from the cold can body 210a when the top cover 220a is installed.

[0051] It can be understood that, since the cold tank adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0052] like Figures 9 to 15 As shown, a gap 201 is formed between the second annular portion 120 of the sealing ring 100 and the sidewall of the opening 211 of the cold tank body 210a. This gap 201 allows the second annular portion 120 to have a floating cushioning effect during the installation and transportation of the cold tank, effectively ensuring the sealing of the cold tank. That is, after the top cover 220a and the cold tank body 210a are assembled, a gap 201 exists between the second annular portion 120 of the sealing ring 100 and the inner surface of the cold tank body 210a. Because the second annular portion 120 of the sealing ring 100 is elastic and can move radially along the cold tank body 210a, the second annular portion 120 has a floating cushioning effect. Even during the transportation of the cold tank, the sealing ring 100 is prevented from being squeezed, fully ensuring the sealing of the cold tank.

[0053] It is understood that the sealing effect formed by the sealing ring 100 and the top cover 220a is an external seal formed between the outer side surface of the top cover 220a and the second annular portion 120, while a gap 201 exists between the second annular portion 120 and the inner surface of the cold tank body 210a. In addition, the second annular portion 120 only undergoes complete bending deformation and is not subject to compression, stretching, etc. that would affect the sealing effect. In other words, the second annular portion 120 of the sealing ring 100 in the present application only achieves a sealing effect by bending and deforming, so that the sealing ring 100 is completely in contact with the top cover 220a. This is significantly different from existing sealing rings 100 on the market, which achieve a sealing effect by squeezing the sealing ring to deform the sealing ring.

[0054] The present embodiment further provides a water dispenser 200, which includes a cold tank. The specific structure of the cold tank is similar to that of the above-mentioned embodiment. Since the present water dispenser 200 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be detailed here.

[0055] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] The sealing ring, cold can and water dispenser provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A sealing ring for a liquid container, comprising a container body (210) having an opening (211) and a cover (220) inserted into the opening (211), characterized in that: The sealing ring (100) comprises a first annular portion (110), a second annular portion (120) and a third annular portion (130), wherein the first annular portion (110) surrounds the periphery of the second annular portion (120), and the third annular portion (130) connects the first annular portion (110) and the second annular portion (120); The first annular portion (110), the second annular portion (120) and the third annular portion (130) form a mounting groove (101) for inserting the side wall at the opening (211); the first annular portion (110) can fit with the outer surface of the side wall at the opening (211); and the second annular portion (120) can fit with the outer side surface of the cover body (220).

2. The sealing ring according to claim 1, characterized in that: The sealing ring (100) further comprises an annular limiting portion (140), the annular limiting portion (140) being protrudingly provided on a side of the first annular portion (110) facing away from the second annular portion (120) and connected to the third annular portion (130), the first annular portion (110), the second annular portion (120), the third annular portion (130) and the annular limiting portion (140) forming the mounting groove (101); The side wall at the opening (211) is bent outward to form a bent portion (212), and the bent portion (212) can abut against the top surface (141) of the annular limiting portion (140).

3. The sealing ring according to claim 2, characterized in that: The surface roughness Ra of the top surface (141) of the annular limiting portion (140) is greater than 6 μm.

4. The sealing ring according to claim 1, characterized in that The thickness of the second annular portion (120) gradually decreases from an end close to the third annular portion (130) to an end away from the third annular portion (130).

5. The sealing ring according to claim 1, characterized in that: One end of the second annular portion (120) close to the third annular portion (130) is recessed toward the inner side of the mounting groove (101).

6. The sealing ring according to claim 1, characterized in that The first annular portion (110) is interference-fitted with the container body (210), and the interference fit of the first annular portion (110) is 15% to 30%; And / or, the first annular portion (110) has a first sealing surface (111) that is in contact with the outer surface of the side wall at the opening (211), and the surface roughness Ra of the first sealing surface (111) is less than 1.6 μm.

7. The sealing ring according to claim 1, characterized in that: The second annular portion (120) has a second sealing surface (121) that is in contact with the outer side surface of the cover body (220), and the surface roughness Ra of the second sealing surface (121) is less than 1.6 μm.

8. A cold tank, characterized in that: The cold tank comprises a cold tank body (210a), a top cover (220a) and a sealing ring (100) according to any one of claims 1 to 7, wherein an opening (211) is provided at the top of the cold tank body (210a), and the top cover (220a) is inserted into the opening (211); The side wall at the opening (211) is inserted into the mounting groove (101) of the sealing ring (100), the second annular portion (120) of the sealing ring (100) is located between the side wall of the top cover (220a) and the side wall of the cold tank body (210a), the second annular portion (120) is in contact with the outer side surface of the cover body (220), and the first annular portion (110) of the sealing ring (100) is in contact with the outer surface of the side wall at the opening (211).

9. The cold tank according to claim 8, characterized in that A gap (201) is provided between the second annular portion (120) of the sealing ring (100) and the side wall at the opening (211).

10. A water dispenser, characterized in that: The water dispenser (200) comprises the cold tank according to claim 9.

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