Water heating blanket capable of preventing overflow of floating ball valve

By installing a float valve at the water tank inlet, the problem of water overflowing when the water-heated blanket finishes working was solved, improving safety and user experience.

CN223896094UActive Publication Date: 2026-02-10GUANGDONG SHUNDE AIDENG CREATIVE COMMODITY CO LTD
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Patent Information

Application Number
CN202520565429.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-10
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

When the water-heated blanket is finished working, water may overflow from the inlet, causing inconvenience and the risk of electric shock.

Method used

A float valve, consisting of a float, a limiting chamber, and a sealing ring, is installed at the water inlet of the water tank. The float moves up and down according to the water level to prevent water from overflowing.

Benefits of technology

It effectively prevents water from overflowing from the water inlet, improving safety and user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223896094U_ABST
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Abstract

The water heating blanket comprises a main machine and a blanket body, the main machine comprises a shell and a water tank, the water tank is provided with a water injection opening, the water injection opening is provided with the floating ball valve, and the floating ball valve comprises a floating ball, a limiting cavity and a sealing ring. The main machine further comprises an air pump, a water pump and an electric heating module. A water inlet pipe and a water outlet pipe are led out of the blanket, and a three-way pipe is arranged in the middle of the water outlet pipe. According to the overflow-preventing water heating blanket with the floating ball valve, the floating ball valve is arranged at the water injection opening of the water tank, so that the problem that water may overflow from the water injection opening is solved, and the use experience and the safety are improved.
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Description

Technical Field

[0001] This invention relates to the field of heating equipment technology, specifically to a water-heated blanket with a float valve to prevent overflow. Background Technology

[0002] Water-heated blankets use electrically heated water that circulates through pipes distributed throughout the blanket to provide warmth. They offer advantages such as safety, low power consumption, and ease of operation. However, when the blanket stops working, the water flows back to the main unit. The water level may exceed the capacity of the main unit's water tank, causing overflow from the inlet, which can be inconvenient for the user and pose a risk of electric shock. Utility Model Content

[0003] The purpose of this utility model is to provide a water-heated blanket with a float valve to prevent water overflow, thereby solving the problem of water overflowing from the water inlet and overcoming the shortcomings of the prior art.

[0004] This utility model provides a water-heated blanket with a float valve to prevent overflow, comprising a main unit and a blanket. The main unit includes a housing and a water tank. The water tank is provided with a water inlet, and a float valve is installed on the water inlet. The float valve includes a float, a limiting cavity, and a sealing ring.

[0005] Furthermore, the water tank is also equipped with a first water inlet and a first water outlet.

[0006] Furthermore, the main unit also includes an air pump, a water pump, and an electric heating module; the housing of the main unit is provided with an exhaust port, a second water inlet, and a second water outlet.

[0007] Furthermore, the first water inlet of the water tank is connected to the second water inlet of the main unit housing; the water pump is installed at the first water outlet and then connected to the second water outlet through a bend; the bend passes through the electric heating module; and the exhaust port is connected to the air pump.

[0008] Furthermore, the limiting cavity of the float valve is fixed to the top plate of the water tank by screws; the float is placed in the limiting cavity; and the sealing ring is located between the limiting cavity and the top plate.

[0009] Furthermore, the blanket has an inlet pipe and an outlet pipe, the inlet pipe being detachably connected to the second outlet, and the outlet pipe being detachably connected to the second inlet.

[0010] Furthermore, a T-junction is provided in the middle section of the water outlet pipe.

[0011] This utility model has the following beneficial effects: This utility model provides a water-heated blanket with a float valve to prevent water overflow. By setting a float valve at the water tank inlet, the problem of water overflowing from the inlet is solved, improving the user experience and safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the water-heated blanket with a float valve for preventing overflow, as described in this utility model.

[0013] Figure 2 This is an exploded view of the main structure of the water-heated blanket with a float valve for preventing overflow, as described in this utility model.

[0014] Figure 3 This is an exploded view of the water tank structure of the water-heated blanket with a float valve for preventing overflow, as described in this utility model.

[0015] Figure 4 This is an exploded view of the outlet pipe and tee pipe structure of a water-heated blanket with a float valve for preventing overflow, as described in this utility model.

[0016] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0017] 1 Main unit, 2 Blanket, 3 Housing, 4 Water tank, 4a Top plate, 4b Box body, 5 Water inlet, 6 Float valve, 6a Float, 6b Limiting cavity, 6c Sealing ring, 7 First water inlet, 8 First water outlet, 9 Air pump, 10 Water pump, 11 Electric heating module, 12 Exhaust port, 13 Second water inlet, 14 Second water outlet, 15 Bend, 16 Water inlet pipe, 17 Water outlet pipe, 18 T-joint pipe. Detailed Implementation

[0018] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0019] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0020] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The following reference Figures 1-4 This application describes a float valve-operated water-heated blanket to prevent overflow, according to some embodiments thereof.

[0024] A water-heated blanket with a float valve for preventing overflow includes a main unit 1 and a blanket 2. The main unit 1 includes a housing 3, a water tank 4, an air pump 9, a water pump 10, and an electric heating module 11. The water tank 4 includes a top plate 4a and a body 4b. The top plate 4a has a water inlet 5, and a float valve 6 is installed on the water inlet 5. The float valve 6 includes a float 6a, a limiting cavity 6b, and a sealing ring 6c. The water tank 4 also has a first water inlet 7 and a first water outlet 8. The housing 3 has an air vent 12, a second water inlet 13, and a second water outlet 14. The first water inlet 7 of the water tank 4 is connected to the second water inlet 13 of the housing 3 via a pipe. The water pump 10 is installed at the first water outlet 8 and then connected to the second water outlet 14 via a bend pipe 15. The bend pipe 15 is connected to the electric heating module 11. The air vent 12 is connected to the air pump 9. The limiting chamber 6b of the float valve 6 is fixed to the top plate 4a of the water tank 4 by screws; the float 6a is placed inside the limiting chamber 6b; the sealing ring 6c is located between the limiting chamber 6b and the top plate 4a. The blanket 2 leads out an inlet pipe 16 and an outlet pipe 17. The inlet pipe 16 is detachably connected to the second outlet 14, and the outlet pipe 17 is detachably connected to the second inlet 13. A tee pipe 18 is provided in the middle section of the outlet pipe 17.

[0025] When using the water-heated blanket, first add an appropriate amount of water through the water inlet 5 of the water tank 4, and then turn on the power. Under the action of the water pump 10, the water in the water tank 4 flows out through the first outlet 8, passes through the bend 15, and is heated by the electric heating module 11 outside the bend 15. The heated water then flows out through the second outlet 14 of the housing 3. The second outlet 14 is connected to the inlet pipe 16, and the water enters the water path of the blanket 2, then flows out through the outlet pipe 17, which is connected to the second inlet 13. The water then flows through the second inlet 13 to the first inlet 7 of the water tank 4 and enters the water tank, completing the circulation. Throughout the process, the float 6a in the float valve 6 floats up and down according to the water level in the tank. When the water level is too high, the float 6a rises to its highest point under buoyancy and tightly seals against the sealing ring 6c, preventing water from overflowing from the inlet and thus improving safety. After the water-heated blanket has finished working, open the T-connector 18 to drain the water. When it is almost drained, disconnect the inlet pipe 16 from the second outlet 14 and connect the inlet pipe 16 to the vent 12. At the same time, turn on the air pump 9. The air pump 9 will then work, and the gas will be forced into the inlet pipe 16 through the vent 12 and then into the water circuit of the blanket 2. This will allow the remaining water to be discharged through the T-connector 18 on the outlet pipe 17, thus keeping the water-heated blanket dry and easy to clean and store.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-heated blanket with a float valve for preventing overflow, comprising a main unit and a blanket, characterized in that, The main unit includes a housing and a water tank. The water tank is provided with a water inlet, and a float valve is installed on the water inlet. The float valve includes a float, a limiting cavity, and a sealing ring.

2. A water-heated blanket with a float valve for preventing overflow as described in claim 1, characterized in that, The water tank is also equipped with a first inlet and a first outlet.

3. A water-heated blanket with a float valve for preventing overflow according to claim 2, characterized in that, The main unit also includes an air pump, a water pump, and an electric heating module; the housing of the main unit is provided with an exhaust port, a second water inlet, and a second water outlet.

4. A water-heated blanket with a float valve for preventing overflow according to claim 3, characterized in that, The first water inlet of the water tank is connected to the second water inlet of the main unit housing; the water pump is installed at the first water outlet and then connected to the second water outlet through a bend pipe; the bend pipe passes through the electric heating module; The exhaust port is connected to the air pump.

5. A water-heated blanket with a float valve for preventing overflow according to claim 1, characterized in that, The limiting cavity of the float valve is fixed to the top plate of the water tank by screws; the float is placed in the limiting cavity; the sealing ring is located between the limiting cavity and the top plate.

6. A water-heated blanket with a float valve for preventing overflow according to claim 4, characterized in that, The blanket has an inlet pipe and an outlet pipe. The inlet pipe is detachably connected to the second outlet, and the outlet pipe is detachably connected to the second inlet.

7. A water-heated blanket with a float valve for preventing overflow according to claim 6, characterized in that, A T-junction is installed in the middle section of the water outlet pipe.