Sealing device for rear cover of water dispenser
The air pump-driven sealing device uses a sealing strip and threaded ring structure to achieve a tight fit between the water dispenser's back cover and the housing, solving the problem of dust entering due to the gap between the back cover and the housing. This enhances the sealing effect and protects the one-way valve components, resulting in a more efficient sealing effect.
Patent Information
- Application Number
- CN202520289707.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The gap between the back cover and the casing of the water dispenser makes it easy for dust to get in, and the existing fixing method is loose, resulting in poor sealing.
The sealing device consists of an air pump, sealing strip, annular air groove, connecting groove, air suction pipe, one-way valve and threaded pipe. The air pump draws air to make the sealing strip fit tightly against the back cover of the water dispenser, enhancing the sealing effect, and the bolts and threaded rings make it easy to disassemble and assemble.
It achieves a tight seal between the back cover and the housing of the water dispenser, reduces dust entry, protects the one-way valve and its related parts, enhances the adsorption capacity of the sealing strip, and facilitates installation and maintenance.
Smart Images

Figure CN223759682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water dispenser technology, and specifically to a sealing device for the back cover of a water dispenser. Background Technology
[0002] A water dispenser is a household appliance primarily used to provide hot and cold water for drinking.
[0003] The back cover of a water dispenser is an important component. It is usually located at the back or bottom of the water dispenser and is used to seal the internal components of the water dispenser, protecting them from external factors such as dust, dirt and moisture. However, the water dispenser casing and the back cover are usually fixed with screws. After long-term use, the screws may loosen, resulting in a certain gap between the water dispenser casing and the back cover, which can easily allow dust to enter the water dispenser.
[0004] To address the aforementioned issues, this application proposes a sealing device for the back cover of a water dispenser. Utility Model Content
[0005] This utility model addresses the technical problems existing in the prior art by providing a sealing device for the back cover of a water dispenser.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A sealing device for the back cover of a water dispenser includes a cover plate and an air pump. A sealing strip is installed on one side of the cover plate, and an annular air groove is opened on the sealing strip. A connecting groove connected to the annular air groove is opened on the cover plate. An air suction pipe connected to the connecting groove is installed on the cover plate. A one-way valve is installed at the other end of the air suction pipe. A threaded pipe is installed at the outlet end of the one-way valve. A connecting hose is installed at the suction end of the air pump. One end of the connecting hose is detachably connected to the threaded pipe. By setting up the air pump, sealing strip, annular air groove, connecting groove, air suction pipe, one-way valve, threaded pipe and connecting hose, the cover plate 1 is attached to the back side of the water dispenser. Then, the cover plate 1 is squeezed with force. The connecting hose 205 on the air pump 204 is connected to the threaded pipe 210. The air pump 204 is started to draw out the air in the annular air groove 201, thereby adsorbing the cover plate 1 onto the water dispenser.
[0007] The cover plate is equipped with four screws, which facilitates the disassembly and fixing of the cover plate.
[0008] The four connecting slots are provided, and one end of each of the four connecting slots is connected to the other. The four connecting slots are respectively connected to the four inner sides of the annular air groove. By providing the four connecting slots, it is easy to quickly extract the air from the annular air groove.
[0009] The end of the connecting hose away from the air pump is threaded, and a threaded ring is threadedly connected to the outer side of the end of the connecting hose away from the air pump. The inner side of the threaded ring is threadedly connected to the outer side of the threaded tube.
[0010] A ring plate is detachably installed on the cover plate. The outer diameter of the threaded ring is smaller than the inner diameter of the ring plate. By setting the threaded ring, it is convenient to disassemble and assemble the connecting hose and the threaded pipe.
[0011] Bolts are installed on the annular plate, and the annular plate is connected to the cover plate by bolts. The bolts facilitate the assembly and disassembly of the annular plate.
[0012] The beneficial effects of this utility model are:
[0013] Press the cover plate firmly onto the water dispenser, then connect the connecting hose on the air pump to the threaded pipe, start the air pump to extract the air from the annular air groove, thereby adsorbing the cover plate onto the water dispenser, thus achieving the effect of sealing the gap between the cover plate and the water dispenser, and enhancing the adsorption capacity of the sealing strip, making the cover plate installed more firmly.
[0014] When the air pump starts, the air is simultaneously drawn away from the four inner sides of the annular air groove, thus achieving the effect of evenly and quickly drawing away the air from the annular air groove, causing the sealing strip to quickly adhere to the water dispenser.
[0015] The ring plate, in conjunction with bolts, is used to cover the check valve and its related parts, thereby reducing the impact of dust on the check valve and its related parts and helping to protect them. Attached Figure Description
[0016] Figure 1 This is a schematic diagram illustrating the overall structure of the device.
[0017] Figure 2 This is a schematic diagram illustrating the structure of the sealing strip of this utility model;
[0018] Figure 3 This utility model is a cross-sectional schematic diagram showing the structure of the annular plate and its related parts;
[0019] Figure 4 This utility model is a cross-sectional view of the internal structure of the display cover.
[0020] Figure 5 This utility model is a cross-sectional schematic diagram showing the structure of a one-way valve and its related parts.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Cover plate; 101. Screws;
[0023] 2. Sealing strip; 201. Annular air groove; 202. Connecting groove; 203. One-way valve; 204. Air pump; 205. Connecting hose; 206. Threaded ring; 207. Annular plate; 208. Bolt; 209. Suction pipe; 210. Threaded pipe. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0026] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0027] Reference Figure 1-5A sealing device for the back cover of a water dispenser includes a cover plate 1 and an air pump 204. Four screws 101 are installed on the cover plate 1 to fix it to the water dispenser. A sealing strip 2 is installed on one side of the cover plate 1, and an annular air groove 201 is formed on the sealing strip 2. A connecting groove 202 communicating with the annular air groove 201 is formed on the cover plate 1. An air suction pipe 209 communicating with the connecting groove 202 is installed on the cover plate 1. A one-way valve 203 is installed at the other end of the air suction pipe 209, and a threaded pipe 210 is installed at the outlet end of the one-way valve 203. The air pump 204... The suction end of 4 is equipped with a connecting hose 205. One end of the connecting hose 205 is detachably connected to the threaded pipe 210. According to the above technical solution, specifically, the cover plate 1 is attached to the back of the water dispenser. Then, the cover plate 1 is squeezed forcefully, and the connecting hose 205 on the air pump 204 is connected to the threaded pipe 210. The air pump 204 is started to extract the air in the annular air groove 201, thereby adsorbing the cover plate 1 onto the water dispenser. This achieves the effect of sealing the gap between the cover plate 1 and the water dispenser, and enhances the adsorption capacity of the sealing strip 2, making the cover plate 1 more firmly installed.
[0028] Reference Figure 3-5 The four connecting slots 202 are connected at one end and are respectively connected to the four inner sides of the annular air groove 201. When the air pump 204 is started, the air in the four inner sides of the annular air groove 201 is simultaneously sucked away, thereby achieving the effect of uniformly and quickly sucking away the air in the annular air groove 201, so that the sealing strip 2 is quickly sucked onto the water dispenser.
[0029] Reference Figure 3 The end of the connecting hose 205 away from the air pump 204 is threaded. A threaded ring 206 is threadedly connected to the outer side of the end of the connecting hose 205 away from the air pump 204. The inner side of the threaded ring 206 is threadedly connected to the outer side of the threaded tube 210. The threaded ring 206 facilitates the assembly and disassembly of the connecting hose 205.
[0030] Reference Figure 3 A ring plate 207 is detachably installed on the cover plate 1. The outer diameter of the threaded ring 206 is smaller than the inner diameter of the ring plate 207. Bolts 208 are installed on the ring plate 207, and the ring plate 207 is connected to the cover plate 1 by the bolts 208. According to the above technical solution, the ring plate 207, together with the bolts 208, is used to cover the one-way valve 203 and its related parts, thereby reducing the impact of dust on the one-way valve 203 and its related parts, and helping to protect the one-way valve 203 and its related parts.
[0031] Working principle:
[0032] The water dispenser rear cover sealing device attaches the cover plate 1 to the back of the water dispenser. Then, the cover plate 1 is pressed firmly, and the connecting hose 205 on the air pump 204 is connected to the threaded pipe 210. The air pump 204 is started to extract the air from the annular air groove 201, thereby adsorbing the cover plate 1 onto the water dispenser. This achieves the effect of sealing the gap between the cover plate 1 and the water dispenser, and enhances the adsorption capacity of the sealing strip 2, making the cover plate 1 more firmly installed.
[0033] When the air pump 204 is started, the sealing device of the back cover of the water dispenser simultaneously draws out the air from the four inner sides of the annular air groove 201, thereby achieving the effect of uniformly and quickly drawing out the air from the annular air groove 201, so that the sealing strip 2 is quickly attached to the water dispenser.
[0034] The water dispenser's rear cover sealing device, with an annular plate 207 and bolts 208, is used to cover the one-way valve 203 and its related parts, thereby reducing the impact of dust on the one-way valve 203 and its related parts, and helping to protect the one-way valve 203 and its related parts.
[0035] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sealing device for the back cover of a water dispenser, comprising a cover plate (1) and an air pump (204), characterized in that, One side of the cover plate (1) is provided with a sealing strip (2), an annular air groove (201) is formed in the sealing strip (2), a communication groove (202) is formed in the cover plate (1) and communicates with the annular air groove (201), an air suction pipe (209) is installed on the cover plate (1) and communicates with the communication groove (202), a one-way valve (203) is installed at the other end of the air suction pipe (209), a threaded pipe (210) is installed at the air outlet end of the one-way valve (203), an air pump (204) is installed on the air suction end of the air suction pipe (209), and a communication hose (205) is detachably connected to one end of the threaded pipe (210).
2. The seal for the back cover of a water dispenser according to claim 1, wherein, The cover plate (1) is provided with four screws (101).
3. The seal for the back cover of a water dispenser according to claim 1, wherein, The communication groove (202) is provided with four communication grooves (202), one end of the four communication grooves (202) is communicated, and the four communication grooves (202) are respectively communicated with the four inner sides of the annular air groove (201).
4. The seal for the back cover of a water dispenser according to claim 1, wherein, The end of the communication hose (205) away from the air pump (204) is provided with a threaded portion, and a threaded ring (206) is threadedly connected to the outer side of the end of the communication hose (205) away from the air pump (204).
5. The seal for the back cover of a water dispenser according to claim 4, wherein, The cover plate (1) is detachably provided with an annular plate (207), and the outer diameter of the threaded ring (206) is smaller than the inner diameter of the annular plate (207).
6. A seal for a water dispenser rear cover as defined in claim 5, wherein, The annular plate (207) is provided with a bolt (208), and the annular plate (207) is connected to the cover plate (1) through the bolt (208).