Self-suction inner container descaling device
By installing a self-priming jet injector on the side of the water dispenser's inner tank, the descaling solution is automatically sprayed in using its self-priming structure, solving the problem of inconvenient operation in existing technologies, achieving convenient and efficient descaling of the inner tank, and reducing equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO GEMI COMML EQUIP
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-10
AI Technical Summary
Existing methods for descaling the inner tank of water dispensers are inconvenient to operate and require a cylinder as a power source, which does not meet the requirements of simplicity and portability.
A self-priming jet injector is installed on the side of the water dispenser's inner tank. Utilizing the self-priming structure of the jet injector, the descaling solution is sprayed into the inner tank at high speed, contacting the scale in a spiral manner, thus avoiding the need to open the lid or use a water pump to introduce the descaling solution.
It achieves convenient and efficient descaling of the inner tank, reduces the cost of equipment such as water pumps, and meets the need for simple and portable cleaning.
Smart Images

Figure CN224474305U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water dispenser parts, specifically to a self-priming inner tank descaling device. Background Technology
[0002] Over time, limescale builds up in the inner tank of water dispensers. Current methods for removing limescale involve either opening the inner tank lid and manually pouring in descaling solution, or connecting a pipe to the outside of the inner tank and using a water pump to draw in the solution. Both methods are cumbersome and inconvenient. Although Chinese Patent Publication No. CN118060119A discloses an anti-clogging self-cleaning jet, it still requires a cylinder for power, failing to meet the simple and portable requirements for cleaning the inner tank. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a self-priming inner tank descaling device.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A self-priming inner tank descaling device includes an inner tank for a water dispenser. A descaling ejector is installed on the outside of the inner tank. The ejector includes a three-way body, comprising a water inlet, a liquid inlet, and an outlet.
[0006] The water inlet is connected to the water inlet via connector I. The water inlet is also equipped with a solenoid valve and a check valve.
[0007] The liquid inlet end is connected to the liquid inlet via connector II, and descaling liquid flows into the liquid inlet.
[0008] The outlet end is connected to the outlet via connector III. The outlet is installed at an angle along the tangent of the inner tank, and the descaling liquid spirals along the inner surface of the inner tank to contact the scale.
[0009] This technical solution adds an ejector to the side of the inner tank. Utilizing the ejector's self-priming structure, it automatically sprays descaling solution at high speed into the inner tank, cleaning the scale on its surface. This avoids the problems associated with opening the inner tank to add descaling solution or using a water pump to introduce it. The entire ejector is shipped as a single unit with the inner tank, facilitating regular scale removal—simple and convenient.
[0010] In addition, the self-priming inner tank descaling device proposed above according to this utility model may also have the following additional technical features:
[0011] According to one embodiment of the present invention, the interior of the main body further includes a water inlet channel, a liquid inlet channel, and a mixing channel, wherein the water inlet channel and the liquid inlet channel are respectively connected to the mixing channel; the water inlet channel has the smallest diameter, and water flows into the water inlet channel through the water inlet end, forming a negative pressure in the mixing channel; the descaling liquid enters the liquid inlet channel through the liquid inlet end via self-priming, and mixes with the water flow in the mixing channel; the mixed descaling liquid is sprayed into the inner tank through the outlet end at the end of the mixing channel.
[0012] In this technical solution, the water inlet channel, liquid inlet channel, and mixing channel constitute a self-priming structure, which facilitates the automatic intake of descaling liquid into the mixing channel, reducing the cost of water pumps and other equipment.
[0013] According to one embodiment of the present invention, the jet injector is a corrosion-resistant metal component.
[0014] In this technical solution, replacing plastic parts with metal parts can increase the jet ratio and meet the strength required for cleaning scale in the inner tank.
[0015] According to one embodiment of the present invention, the jet ejector is horizontally installed at the bottom of the inner liner, with both the water inlet and liquid inlet horizontally positioned, and the jet outlet connected vertically upward to the inner liner via connector III.
[0016] In this technical solution, the jet injector can be installed on the side, bottom, or top. The choice depends on the actual situation, but it is usually installed in the bottom area where it does not affect the installation of the inner liner.
[0017] According to one embodiment of the present invention, sealing rings are installed inside connector I, connector II and connector III.
[0018] In this technical solution, the sealing ring is used to better seal the three ends of the jet injector and prevent leakage.
[0019] According to one embodiment of the present invention, the bottom of the inner liner is provided with an installation hole connected to the outlet, and a drain outlet after descaling is completed.
[0020] In this technical solution, the mounting hole is connected to the outlet with a spray nozzle. The spray nozzle has an inclined channel to ensure that the descaling liquid is sprayed out at an angle along the tangential direction of the inner tank surface, thereby forming a spiral high-speed water flow and improving cleaning efficiency.
[0021] Compared with the prior art, this utility model has the following advantages:
[0022] By adding an ejector to the side of the inner tank, the self-priming structure automatically sprays the descaling solution into the inner tank at high speed, which then spirals along the inner surface to contact the scale. This eliminates the need to open the lid or use a water pump to introduce the descaling solution. It is shipped as a single unit with the inner tank, making it easy and convenient to remove scale regularly. Attached Figure Description
[0023] Figure 1 This is a bottom view of the present invention.
[0024] Figure 2 This is the front view of this utility model.
[0025] Figure 3 This is a side view of the present invention.
[0026] Figure 4 This is a 3D view of the jet ejector.
[0027] Figure 5 This is a cross-sectional view of the jet injector.
[0028] In the diagram: 1. Inner liner; 2. Ejector; 21. Body; 22. Water inlet; 23. Liquid inlet; 24. Ejector; 25. Water inlet channel; 26. Liquid inlet channel; 27. Mixing channel; 3. Water inlet; 4. Solenoid valve; 5. Check valve; 6. Connector I; 7. Connector II; 8. Connector III; 9. Ejector port; 10. Liquid inlet. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1
[0031] like Figures 1 to 3 As shown, this embodiment provides a self-priming inner tank descaling device, including an inner tank 1 for a water dispenser, and a descaling jet 2 installed on the outside of the inner tank 1.
[0032] like Figures 4 to 5 As shown, the ejector 2 includes a three-way body 21, which includes a water inlet 22, a liquid inlet 23, and an ejection outlet 24, wherein:
[0033] The water inlet 22 is connected to the water inlet 3 via connector I6. The water inlet 3 is also equipped with a solenoid valve 4 and a check valve 5.
[0034] The liquid inlet end 23 is connected to the liquid inlet 10 through connector II 7, and the liquid inlet 10 contains descaling liquid.
[0035] The outlet end 24 is connected to the outlet 9 via the connector III8. The outlet 9 is installed at an angle along the tangent of the inner tank 1, and the descaling liquid spirally contacts the scale along the inner surface of the inner tank 1.
[0036] This technical solution adds an ejector 2 to the side of the inner tank 1. Utilizing the self-priming structure of the ejector 2, it automatically sprays descaling solution at high speed into the inner tank 1 to clean the scale on its surface. This avoids the problems associated with opening the inner tank 1 to add descaling solution or using a water pump to introduce the solution. The entire ejector 2 is shipped as a single unit with the inner tank 1, facilitating regular scale removal and offering a simple and convenient process.
[0037] In addition, the self-priming inner tank descaling device proposed above according to this utility model may also have the following additional technical features:
[0038] According to one embodiment of the present invention, the interior of the main body 21 further includes a water inlet channel 25, a liquid inlet channel 26, and a mixing channel 27. The water inlet channel 25 and the liquid inlet channel 26 are respectively connected to the mixing channel 27. The water inlet channel 25 has the smallest diameter. Water flows into the water inlet channel 25 through the water inlet end 22 and forms a negative pressure in the mixing channel 27. The descaling liquid enters the liquid inlet channel 26 through the liquid inlet end 23 and mixes with the water flow in the mixing channel 27. The mixed descaling liquid is sprayed into the inner tank 1 through the outlet end 24 at the end of the mixing channel 27.
[0039] In this technical solution, the water inlet channel 25, the liquid inlet channel 26, and the mixing channel 27 form a self-priming structure, which facilitates the automatic intake of descaling liquid into the mixing channel 27, reducing the cost of water pumps and other equipment.
[0040] According to one embodiment of the present invention, the jet injector 2 is a corrosion-resistant metal component.
[0041] In this technical solution, replacing plastic parts with metal parts can increase the jet ratio and meet the strength required for cleaning scale in the inner tank 1.
[0042] According to one embodiment of the present invention, the jet ejector 2 is horizontally installed at the bottom of the inner liner 1, the water inlet 3 and the liquid inlet 10 are both horizontally set, and the jet outlet 9 is vertically connected to the inner liner 1 through the connector III 8.
[0043] In this technical solution, the jet injector 2 can be installed on the side, bottom, or top. The choice depends on the actual situation, and it is usually installed in the bottom area where it does not affect the installation of the inner liner 1.
[0044] According to one embodiment of the present invention, sealing rings are installed inside connector I6, connector II7 and connector III8.
[0045] In this technical solution, the sealing ring is used to better seal the three ends of the ejector 2 and prevent leakage.
[0046] According to one embodiment of the present invention, the bottom of the inner liner 1 is provided with an installation hole connected to the outlet 9, and a drain outlet after descaling is completed.
[0047] In this technical solution, the mounting hole is connected to the outlet 9 with a spray nozzle. The spray nozzle has an inclined channel to ensure that the descaling liquid is sprayed out at an angle along the tangential direction of the inner tank 1 surface, thereby forming a spiral high-speed water flow and improving cleaning efficiency.
[0048] The usage process of the above embodiments is as follows: Figures 1 to 5 As shown, when descaling is required, the solenoid valve 4 on the inlet 3 is opened, and the water flows through the connector I6 into the inlet 22 of the ejector 2. Since the inlet channel 25 has the smallest diameter, the water flow forms a negative pressure in the mixing channel 27. At this time, the descaling liquid in the inlet 10, under the action of negative pressure, enters the inlet channel 26 through the connector II7 by self-priming, and mixes fully with the water flow in the mixing channel 27. The mixed descaling liquid passes through the outlet 24 at the end of the mixing channel 27, and enters the inner tank 1 vertically upward from the mounting hole at the bottom of the inner tank 1 through the nozzle connected to the outlet 9. The inclined channel of the nozzle causes the descaling liquid to be sprayed out at an angle along the tangential direction of the surface of the inner tank 1, forming a spiral high-speed water flow, which fully contacts the scale on the inner surface of the inner tank 1, thereby cleaning the scale. After descaling is completed, the descaling liquid is discharged from the drain port at the bottom of the inner tank 1. Throughout the process, the sealing ring ensures the sealing of each end of the ejector 2 to prevent leakage. The jet ejector 2 is a corrosion-resistant metal part. It is installed at the bottom without affecting the installation of the inner liner 1, and can meet the cleaning intensity requirements.
[0049] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.
Claims
1. A self-priming inner tank descaling device, characterized in that, The water dispenser includes an inner tank (1) and a descaling ejector (2) installed on the outside of the inner tank (1). The ejector (2) includes a three-way body (21), which includes a water inlet (22), a liquid inlet (23), and an ejection end (24). The inlet (22) is connected to the inlet (3) via connector I (6). The inlet (3) is also equipped with a solenoid valve (4) and a check valve (5). The liquid inlet (23) is connected to the liquid inlet (10) via connector II (7), and the liquid inlet (10) contains descaling liquid. The ejector end (24) is connected to the ejector port (9) through connector III (8). The ejector port (9) is installed at an angle along the tangential direction of the inner tank (1). The descaling liquid spirally contacts the scale along the inner surface of the inner tank (1).
2. The self-priming inner tank descaling device as described in claim 1, characterized in that, The interior of the body (21) also includes a water inlet channel (25), a liquid inlet channel (26), and a mixing channel (27). The water inlet channel (25) and the liquid inlet channel (26) are respectively connected to the mixing channel (27). The water inlet channel (25) has the smallest channel diameter. Water flows into the water inlet channel (25) through the water inlet end (22) and forms a negative pressure in the mixing channel (27). The descaling liquid enters the liquid inlet channel (26) through the liquid inlet end (23) by self-priming and mixes with the water flow in the mixing channel (27). The mixed descaling liquid is sprayed into the inner tank (1) through the outlet end (24) at the end of the mixing channel (27).
3. The self-priming inner tank descaling device as described in claim 1, characterized in that, The jet ejector (2) is a corrosion-resistant metal component.
4. The self-priming inner tank descaling device as described in claim 1 or 3, characterized in that, The jet ejector (2) is horizontally installed at the bottom of the inner liner (1), the water inlet (3) and the liquid inlet (10) are both horizontally set, and the jet outlet (9) is vertically connected to the inner liner (1) through the connector III (8).
5. The self-priming inner tank descaling device as described in claim 1, characterized in that, Each of the connectors I (6), II (7), and III (8) is equipped with a sealing ring.
6. The self-priming inner tank descaling device as described in claim 1, characterized in that, The bottom of the inner liner (1) is provided with an installation hole connected to the outlet (9) and a drain outlet after descaling.