Folding warmer convenient to store

By introducing dual-sided electric heating components and a fan structure into the heater, the problems of uneven heating and inconvenient cleaning of impurities in existing heaters are solved, achieving the effects of uniform heating and automatic cleaning of impurities.

CN223985237UActive Publication Date: 2026-03-10HUNAN QUANJIAFU ELECTRICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing electric folding heaters cannot evenly warm the feet, calves, and knees during use, and impurities easily adhere to the heating elements after use, causing damage.

Method used

A foldable heater that is easy to store has been designed. It adopts a dual-sided electric heating element and a fan structure. The fan cleans up impurities and the reflective layer provides uniform heating. The top cover is designed for easy storage.

Benefits of technology

It achieves uniform heating of the feet, calves, and knees, and automatically cleans impurities after use to prevent damage to the heating components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223985237U_ABST
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Abstract

The utility model relates to the technical field of household appliances, in particular to a folding warmer convenient to store, which comprises a base and a top cover, the top cover is hinged with one side of the top of the base, a transmission component and a fan are arranged on one side of the base close to the top cover, a first electric heating component is arranged on the base, and a second electric heating component is arranged on the top cover. First folding plates are hinged to the two sides of the second electric heating assembly, second folding plates are hinged to the sides, away from the second electric heating assembly, of the first folding plates, and connecting plates are hinged to the sides, away from the first folding plates, of the second folding plates. The electric heating shoe has the beneficial effects that during use, the soles, the feet, the shanks and the knees of a user can be uniformly heated at the same time, the practicability is improved, and after use is completed, impurities such as soil and dust falling on the first electric heating assembly can be cleaned when the top cover is closed; and the first electric heating assembly or the second electric heating assembly is prevented from being damaged by impurities such as soil and dust.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, especially a folding type warmer convenient to store. BACKGROUND

[0002] The warming of feet and knees is particularly important for the elderly and women, because their physiological characteristics and health needs are more susceptible to cold invasion. The metabolism of the elderly slows down, and the joints degenerate significantly. As the end of blood circulation, the feet and knees have thin fat layers and few blood vessels, and are prone to poor local blood flow after being cold, leading to joint stiffness, pain, and even accelerated development of osteoarthritis. At the same time, the immune system is weakened, and cold and damp invasion may induce rheumatism or exacerbate chronic diseases. Women, due to hormonal fluctuations and a cold constitution, are particularly susceptible to "cold from the feet" during menstruation, pregnancy, or menopause. Cooling the feet can affect the uterus through the meridians, exacerbating uterine cold, dysmenorrhea, or cold pain in the waist and abdomen. Cooling the knees may cause poor blood flow due to the functional relationship between the liver and kidneys (traditional Chinese medicine theory), which can lead to joint discomfort or a weakened immune system over time.

[0003] In daily protection, in addition to wearing thick-soled shoes, wool socks, and knee pads, a folding warmer can be used for flexible assistance. Its lightweight and easy-to-store features make it suitable for placement under the feet or in front of the knees. Local constant temperature heating improves blood circulation and prevents prolonged sitting from getting cold. Scientifically combining traditional warming methods with modern tools can more efficiently reduce the risk of "old cold legs," rheumatic pain, and other conditions, and improve winter health protection quality.

[0004] The electric opening and closing folding warmer disclosed in Chinese Patent CN215062338U includes an upper cover, a base, an electric heating assembly, a drive assembly, and a pivot shaft. The electric heating assembly is arranged in the upper cover and / or the base. The upper cover is tightly connected with the pivot shaft. The pivot shaft is pivotally installed in the base. The drive assembly is in transmission connection with the pivot shaft to drive the pivot shaft and the upper cover to pivot.

[0005] However, the electric opening and closing folding warmer has the following problems in actual use:

[0006] During use, the electric heating assembly on the upper cover warms the feet, shins, and knees of the user. The unilateral warming method cannot evenly warm the feet, shins, and knees of the user. When warming, the feet need to be placed on the base. Dirt, dust, and other impurities on the shoe soles may fall on the base. After use, the base needs to be cleaned, which is inconvenient. If the upper cover is not cleaned and folded, the dirt, dust, and other impurities may adhere to the electric heating assembly, causing damage to the electric heating assembly. UTILITY MODEL CONTENTS

[0007] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a foldable heater that is easy to store.

[0008] The purpose of this utility model is achieved through the following technical solution: a foldable heater that is easy to store, including a base and a top cover, the top cover is hinged to one side of the top of the base, a transmission component and a fan are provided on the side of the base near the top cover, a first electric heating component is provided on the base, a second electric heating component is provided on the top cover, a first folding plate is hinged to both sides of the second electric heating component, a second folding plate is hinged to the side of the first folding plate away from the second electric heating component, and a connecting plate is hinged to the side of the second folding plate away from the first folding plate.

[0009] An air inlet slot is provided on one side of the base, and a storage slot is provided inside the air inlet slot. The fan is located inside the storage slot, and a converging slot is provided inside the storage slot. An air outlet is provided at the end of the converging slot away from the storage slot.

[0010] A rotating shaft is fixedly connected to one side of the top cover, and the top cover is rotatably connected to the base via the rotating shaft. A first helical gear is provided on the rotating shaft.

[0011] Preferably, a reflective layer is provided on the inner side of the first folding plate, the second folding plate, and the connecting plate.

[0012] Preferably, the base has a first connecting rod hinged to both sides.

[0013] Preferably, the position of the air outlet corresponds to the position of the first electric heating element.

[0014] Preferably, a second connecting rod is hinged to both sides of the top cover, and the end of the second connecting rod away from the top cover is hinged to the first connecting rod.

[0015] Preferably, there are multiple first helical gears, which are linearly arrayed on the shaft, and the number of transmission components and fans is the same as that of the first helical gears.

[0016] Preferably, the fan is connected to the first helical gear via a transmission assembly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This foldable heater is easy to store. When in use, it can simultaneously and evenly heat the user's soles, feet, calves, and knees, improving its practicality. When the top cover is closed after use, dirt, dust, and other impurities that have fallen on the first heating element can be cleaned, preventing dirt, dust, and other impurities from damaging the first or second heating element.

[0019] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention in its first state;

[0022] Figure 2 This is a schematic diagram of the structure of the second state of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the third state of this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the second state of the present invention;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0026] Figure 6 This is a cross-sectional structural diagram of the base of this utility model;

[0027] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0028] Figure 8 This is a structural schematic diagram of the top cover of this utility model in its first state;

[0029] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point C;

[0030] Figure 10 This is a structural schematic diagram of the top cover of this utility model in its second state;

[0031] Figure 11 Figure 10 Enlarged structural diagram at point D;

[0032] Figure 12 This is a schematic diagram of the transmission component and fan of this utility model.

[0033] In the diagram: 1. Base; 101. First connecting rod; 102. Air inlet slot; 103. Drop slot; 104. Storage slot; 105. Condensation slot; 106. Air outlet; 107. First connecting hole; 108. Second connecting hole; 109. Hinge seat; 2. Top cover; 201. Second connecting rod; 202. Rotating shaft; 203. First helical gear; 3. Transmission assembly; 301. Second helical gear; 302. First transmission gear; 303. Second transmission gear; 4. Fan; 5. First heating element; 6. Second heating element; 7. First folding plate; 8. Second folding plate; 9. Connecting plate. Detailed Implementation

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0036] like Figures 1-5As shown, a foldable heater that is easy to store includes a base 1 and a top cover 2. The top cover 2 is hinged to one side of the top of the base 1. A transmission assembly 3 and a fan 4 are arranged on the side of the base 1 near the top cover 2. A first electric heating element 5 is arranged on the base 1, and a second electric heating element 6 is arranged on the top cover 2. A temperature control panel for controlling the temperature of the first electric heating element 5 and the second electric heating element 6 is also provided on the base 1. A temperature insulation alarm is also provided on the top cover 2. When the temperature exceeds a threshold, an alarm will sound and heating will automatically stop. It should be noted that the temperature control panel and the temperature insulation alarm are the same as or can be implemented using existing technology. A power supply port is provided on one side of the base 1. In this embodiment, the first electric heating element 5 is an electric heater. The heating plate and the second electric heating component 6 are infrared heating plates. Both the electric heating plate and the infrared heating plate are the same as existing technologies or can be implemented using existing technologies. The second electric heating component 6 is hinged to both sides of a first folding plate 7. The side of the first folding plate 7 away from the second electric heating component 6 is hinged to a second folding plate 8. The side of the second folding plate 8 away from the first folding plate 7 is hinged to a connecting plate 9. The inner sides of the first folding plate 7, the second folding plate 8 and the connecting plate 9 are all provided with a reflective layer. In use, the second electric heating component 6, the first folding plate 7, the second folding plate 8 and the connecting plate 9 are opened to form a cylindrical structure. The user's feet, calves and knees are placed inside the cylindrical structure formed by the second electric heating component 6, the first folding plate 7, the second folding plate 8 and the connecting plate 9.

[0037] like Figures 6-7 As shown, the base 1 has a first connecting rod 101 hinged to both sides. The base 1 has an air inlet slot 102 on one side and a drop slot 103 at the bottom of the air inlet slot 102. The drop slot 103 extends directly to the bottom of the base 1 so that dust and other impurities falling into the air inlet slot 102 can fall out from the drop slot 103. The air inlet slot 102 has a storage slot 104 inside and the fan 4 is located inside the storage slot 104. The storage slot 104 has a gathering slot 105 inside and an air outlet 106 at the end of the gathering slot 105 away from the storage slot 104. The base 1 has a first connecting hole 107 and a second connecting hole 108 on the side near the air inlet slot 102. The top of one side of the base 1 has a hinge seat 109. The position of the air outlet 106 corresponds to the position of the first electric heating component 5.

[0038] like Figures 8-11As shown, both sides of the top cover 2 are hinged with second connecting rods 201. The end of the second connecting rod 201 away from the top cover 2 is hinged to the first connecting rod 101. A rotating shaft 202 is fixedly connected to one side of the top cover 2. The rotating shaft 202 is rotatably connected to the base 1 through the hinge seat 109. A first helical gear 203 is provided on the rotating shaft 202. There are multiple first helical gears 203, which are linearly arrayed on the rotating shaft 202. The number of transmission components 3 and fans 4 is the same as the number of first helical gears 203. The fans 4 are connected to the first helical gears 203 through the transmission components 3.

[0039] like Figure 5 , Figure 7 , Figure 9 , Figure 11 and Figure 12 As shown, the transmission assembly 3 includes a second helical gear 301, which is rotatably connected to the air inlet slot 102 on the base 1 through a first connecting hole 107. The second helical gear 301 meshes with the first helical gear 203. A first transmission gear 302 is fixedly connected to the second helical gear 301 in the axial direction. The first transmission gear 302 meshes with the second transmission gear 303. The second transmission gear 303 is rotatably connected to the air inlet slot 102 on the base 1 through a second connecting hole 108. The fan 4 is arranged in the axial direction of the second transmission gear 303.

[0040] The work process is as follows:

[0041] S1. When in use, first rotate the top cover 2 to open the top cover 2, and then pull the connecting plate 9 outward so that the first folding plate 7, the second folding plate 8 and the connecting plate 9 are opened up, and together with the second electric heating component 6, they form a cylindrical structure.

[0042] S2. The user places their feet, calves, and knees inside the cylindrical structure formed by the second electric heating component 6, the first folding plate 7, the second folding plate 8, and the connecting plate 9. The user steps on the first electric heating component 5 and activates the first electric heating component 5 and the second electric heating component 6 to heat the user's soles, feet, calves, and knees simultaneously.

[0043] S3. Since the first folding plate 7, the second folding plate 8, the connecting plate 9 and the second electric heating component 6 together form a cylindrical structure, and the inner sides of the first folding plate 7, the second folding plate 8 and the connecting plate 9 are all provided with reflective layers, the heat after the second electric heating component 6 is activated is reflected by the reflective layers provided on the inner sides of the first folding plate 7, the second folding plate 8 and the connecting plate 9, so that the heat is evenly distributed in the cylindrical structure formed by the first folding plate 7, the second folding plate 8, the connecting plate 9 and the second electric heating component 6, which can evenly heat and warm the user's feet, calves and knees.

[0044] S4. After use, the first folding plate 7 and the second folding plate 8 are folded, the connecting plate 9 is returned to the top cover 2, and the top cover 2 is rotated to cover the base 1.

[0045] S5. During the rotation of the top cover 2, the rotating shaft 202 drives the first helical gear 203 to rotate, the first helical gear 203 drives the first transmission gear 302 to rotate through the second helical gear 301, and the first transmission gear 302 drives the fan 4 to rotate and blow air through the second transmission gear 303.

[0046] S6. The airflow enters from the air inlet slot 102, is blown by the fan 4, passes through the collection slot 104 and the collection slot 105, and is blown out from the air outlet 106 to clean the dirt, dust and other impurities that fall on the first electric heating component 5.

[0047] S7. As the airflow passes through the converging groove 105, the cross-sectional area of ​​the airflow becomes smaller, which increases the flow rate of the airflow blown out from the outlet 106 and improves the cleaning effect on dirt, dust and other impurities falling on the first electric heating component 5.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A foldable heater for convenient storage, characterized by: The utility model provides a kind of electric heating device, including base (1) and top cover (2), the top cover (2) is hinged with the side of the top of the base (1), the base (1) is provided with transmission assembly (3) and fan (4) near the side of the top cover (2), first electric heating assembly (5) is provided on the base (1), second electric heating assembly (6) is provided on the top cover (2), the two sides of the second electric heating assembly (6) are hinged with first folding plate (7), the side of the first folding plate (7) away from the second electric heating assembly (6) is hinged with second folding plate (8), the side of the second folding plate (8) away from the first folding plate (7) is hinged with connecting plate (9); The side of the base (1) is provided with air inlet groove (102), the inside of the air inlet groove (102) is provided with receiving groove (104), the fan (4) is arranged in the inside of the receiving groove (104), the inside of the receiving groove (104) is provided with collection groove (105), the end of the collection groove (105) away from the receiving groove (104) is provided with air outlet (106); The side of the top cover (2) is fixedly connected with rotating shaft (202), the top cover (2) is rotatably connected on the base (1) by the rotating shaft (202), the rotating shaft (202) is provided with first bevel gear (203).

2. The foldable heater of claim 1, wherein: The inside of the first folding plate (7), second folding plate (8) and connecting plate (9) is provided with reflecting layer.

3. The foldable heater of claim 1, wherein: The two sides of the base (1) are hinged with first connecting rod (101).

4. The foldable heater of claim 1, wherein: The position of the air outlet (106) corresponds to the position of the first electric heating assembly (5).

5. The foldable heater of claim 3, wherein: The two sides of the top cover (2) are hinged with second connecting rod (201), the end of the second connecting rod (201) away from the top cover (2) is hinged with the first connecting rod (101).

6. The foldable heater of claim 1, wherein: The number of the first bevel gear (203) is multiple, multiple first bevel gears (203) are linearly arrayed on the rotating shaft (202), the number of the transmission assembly (3) and fan (4) is same with the first bevel gear (203).

7. The foldable heater of claim 1, wherein: The fan (4) is drivingly connected with the first bevel gear (203) by transmission assembly (3).

Citation Information

Patent Citations

  • Electric opening and closing folding type warmer

    CN215062338U