Earth bed

By introducing steam equipment and heating pipe systems into the earthen kang bed, combined with a reasonable aperture design and ore layer, the heating problem of earthen kang beds in modern buildings has been solved, achieving rapid and uniform heating and long-term heat preservation, thus meeting the functional requirements of traditional earthen kang beds.

CN223994628UActive Publication Date: 2026-03-17YANBIAN KANGHUA ENTERPRISE MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In urban apartment buildings, traditional earthen beds cannot provide effective heating and lack the warmth retention and blood circulation improvement functions of traditional earthen beds, making them unsuitable for use in modern apartment buildings.

Method used

Design a traditional earthen bed that uses steam equipment and a heating pipe system. The heating pipes are buried inside the bed board. Through a rationally designed aperture ratio and grid structure, uniform heating is achieved. Combined with materials such as mineral layers and reflective films, the heat preservation effect is enhanced, and temperature control is supported.

Benefits of technology

It achieves rapid and uniform heating in modern buildings, with a long heat retention time. It possesses the heat retention and blood circulation improvement functions of traditional earthen beds, reduces dependence on stove equipment, and has the effect of heating for one hour and keeping warm for eight hours.

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Abstract

The utility model provides an earthen bed which comprises a heating device and a bed body, the heating device is a steam device and a heating pipe, and the bed body comprises a bed frame body and a bed board. The bed board is provided with a built-in layer, and the heating pipe is embedded in the built-in layer; the output end of the steam equipment is connected with an inlet of the heating pipe and used for guiding steam generated by the steam equipment into the heating pipe, and the steam is discharged from an outlet of the heating pipe after flowing through the heating pipe in the built-in layer. The steam equipment is started, and generated steam flows through the heating pipe to heat the bed board. When the bed board temperature reaches the preset temperature, the steam equipment is closed to stop heating. Due to the fact that the bed board made of the heating pipes and the soil layer where the pipes are buried is used, the bed has the functions of being high in heat retention property, improving blood circulation and removing damp and cold of a traditional earthen bed, and the temperature of the bed board can be controlled by installing a temperature controller. The steam equipment is matched for use, so that the dependence of a traditional earthen bed on heating of cooking range equipment is eliminated, and the earthen bed can be used on a bed of a building while the function of the traditional earthen bed is reserved.
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Description

Technical Field

[0001] This utility model relates to the technical field of daily furniture, and in particular to a type of earthen bed. Background Technology

[0002] The history of the earthen kang (heated platform bed) in Northeast China can be traced back to ancient times. It was used for heating and for living and eating. This lifestyle has continued to this day, and over time, the earthen kang has gradually become an important heating device for residents of Northeast China and even the entire northern region. The earthen kang is not only a heating facility but also an important part of Northeast Chinese culture. Functionally, it provides excellent warmth, improves blood circulation, and dispels dampness and cold. Emotionally, it carries the memories and emotions of the people of Northeast China and is an important place for family members to connect and share feelings.

[0003] With urbanization, more and more apartment buildings have been constructed, and many residents have moved from traditional brick houses to urban apartments or built their own multi-story buildings. However, under this new housing structure, the possibility of having a stove is no longer possible, and the traditional earthen bed has been replaced by ordinary solid wood beds, panel beds, and metal beds. Therefore, it is very important to find a way to make the beds in urban apartment buildings function like traditional earthen beds. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, this utility model provides a traditional earthen bed.

[0005] This utility model provides a traditional earthen bed, including a heating device and a bed body. The heating device is a steam device and a heating pipe. The bed body includes a bed frame and a bed board. The bed board has an inner layer, and the heating pipe is embedded in the inner layer. The output end of the steam device is connected to the inlet of the heating pipe to guide the steam generated by the steam device into the heating pipe. After flowing through the heating pipe in the inner layer, the steam is discharged from the outlet of the heating pipe. The heating pipe also includes a main heating pipe, auxiliary heating pipes, and a tail pipe connected to the outlet of the heating pipe. Along the steam flow direction, the main heating pipe and N auxiliary heating pipes are sequentially connected at intersections with a first intersection inlet and N-1 second intersection inlets. The heating pipe and the tail pipe are connected with a T-shaped inlet. The N-1 second intersection inlets have the same diameter. The diameter of the first intersection inlet is 1.25 to 1.5 times the diameter of the second intersection inlet, and the diameter of the T-shaped inlet is 1.5 to 2 times the diameter of the second intersection inlet.

[0006] Furthermore, a functional layer is provided on the upper surface of the built-in layer, and ore is laid in the functional layer.

[0007] Furthermore, the steam equipment is a steam generator.

[0008] Furthermore, the heating pipe is mesh-like.

[0009] Furthermore, the earthen bed also includes a limiting plate disposed on the bottom surface of the bed board, and the limiting plate is provided with a limiting frame around its perimeter, the limiting frame and the limiting plate forming an inner cavity to accommodate the bed board.

[0010] Furthermore, the earthen bed also includes an insulation board disposed between the limiting plate and the bed board.

[0011] Furthermore, the earthen bed also includes a reflective film disposed between the insulation board and the bed board.

[0012] Furthermore, the earthen bed also includes a floor adhesive layer disposed on the top surface of the bed board.

[0013] Furthermore, the earthen bed also includes a water collection tank, and the water collection pipe of the water collection tank is connected to the outlet of the heating pipe.

[0014] This utility model provides a traditional earthen bed, comprising a heating device and a bed body. The heating device includes a steam generator and heating pipes. The bed body includes a bed frame and a bed board. The bed board has an internal layer, and the heating pipes are embedded in the internal layer. The output end of the steam generator is connected to the inlet of the heating pipes, allowing steam generated by the steam generator to flow into the heating pipes. After flowing through the heating pipes in the internal layer, the steam is discharged from the outlet of the heating pipes. When heating is needed, the steam generator is turned on, and the heated steam generated by the steam generator flows through the heating pipes to heat the bed board before being discharged from the outlet of the heating pipes. When the bed board temperature reaches a predetermined temperature, the steam generator is turned off to stop heating.

[0015] Because the diameter of the first inlet of the heating main pipe and auxiliary pipe is 1.25 to 1.5 times that of the second inlet, and the diameter of the T-shaped inlet of the heating main pipe and tail pipe is 1.5 to 2 times that of the second inlet, and N-1 second inlets have the same diameter, this structural design, with the diameters of the first and T-shaped inlets being reasonably larger than those of the second inlets, allows the steam generated by the steam equipment to provide more even heating from each inlet, rather than heating sequentially according to distance from the heating pipe inlet. This avoids the situation where the part of the bed board closest to the heating pipe inlet reaches the preset temperature quickly, while the part farther away from the heating pipe inlet fails to reach the preset temperature for a long time, enabling the entire bed board to be heated to the preset temperature more quickly and evenly, thus shortening the bed board preheating time.

[0016] As a preferred option, the earthen bed also includes a water collection tank, with its collection pipe connected to the outlet of the heating pipe. When the steam generated by the steam equipment flows through the heating pipe to heat the bed, some of the steam condenses into liquid and flows out from the outlet of the heating pipe, storing it in the water collection tank, thus achieving one-time use of water resources. If the steam equipment uses the water in the collection tank to produce steam, an external water / steam circulation path is formed, consisting of the steam equipment, heating pipe, and water collection tank, realizing the recycling of water resources.

[0017] Due to the unique structure of the earthen bed in this application, it not only possesses the traditional earthen bed's functions of strong heat retention, improved blood circulation, and removal of dampness and cold, but also benefits the body's bones with its firm bed board. Furthermore, the bed board can be controlled by installing a thermostat, achieving a heating effect of one hour and heat retention for more than eight hours. Combined with the use of steam equipment, it eliminates the dependence of traditional earthen beds on stove heating, enabling its application in apartment buildings while retaining the functions of a traditional earthen bed. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] Figure 1 This is a schematic diagram showing the heating pipe, the limiting plate, and the limiting frame in the embodiment.

[0021] Figure 2 This is a schematic diagram of the embodiment including a heating pipe, a limiting plate and a limiting frame, an insulation board and a reflective film;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Heating pipe; 2. Limiting plate; 3. Limiting frame; 4. Insulation board; 5. Reflective film; 6. Main heating pipe; 7. Auxiliary heating pipe; 8. Heating tail pipe; 9. First cross inlet; 10. Second cross inlet; 11. T-shaped inlet. Detailed Implementation

[0024] 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, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0025] like Figures 1-2As shown, the earthen bed provided in this embodiment includes a heating device and a bed body. The heating device is a steam device and a heating pipe. The bed body includes a bed frame and a bed board. The bed board has an inner layer, and the heating pipe is embedded in the inner layer. The output end of the steam device is connected to the inlet of the heating pipe, which is used to guide the steam generated by the steam device into the heating pipe, and after flowing through the heating pipe in the inner layer, it is discharged from the outlet of the heating pipe.

[0026] When heating is needed, the steam equipment is turned on, and the steam generated by the equipment flows through heating pipe 1 to heat the bed board. Once the bed board reaches the predetermined temperature, the steam equipment is turned off to stop heating. Because the diameter of the first intersecting inlet 9 of the main heating pipe 6 and the auxiliary heating pipe 7 is 1.25 to 1.5 times the diameter of the second intersecting inlet 10, and the diameter of the T-shaped inlet 11 of the main heating pipe 6 and the tail pipe 8 is 1.5 to 2 times the diameter of the second intersecting inlet 10, and all N-1 second intersecting inlets 10 have the same diameter, this structural design, with the diameters of the first intersecting inlet 9 and the T-shaped inlet 11 being reasonably larger than those of the second intersecting inlet 10, allows the steam generated by the steam equipment to provide more even heating from each inlet, rather than heating sequentially according to distance from the heating pipe inlet. This avoids the situation where the part of the bed board closest to the heating pipe inlet reaches the preset temperature quickly, while the part farther away from the heating pipe inlet takes a long time to reach the preset temperature. It can quickly and evenly heat the entire bed board to the preset temperature, shortening the bed board preheating time.

[0027] In this embodiment, the main heating pipe 6, auxiliary heating pipe 7, and tailpipe 8 are all fixedly connected by welding to maintain a seal. Each inlet is opened at a suitable position on each pipe. The corresponding steam flow rate is adjusted according to the pipe diameter of the main heating pipe 6. With the setting of the above-mentioned inlet orifice ratio, the entire bed board can be heated to the preset temperature relatively evenly and quickly.

[0028] Due to the unique structure of the earthen bed in this application, it not only possesses the traditional earthen bed's functions of strong heat retention, improved blood circulation, and removal of dampness and cold, but also allows the bed board temperature to be controlled by an additional temperature controller, achieving a heating effect of one hour and heat retention for more than eight hours. Combined with the use of steam equipment, it eliminates the dependence of traditional earthen beds on stove heating, enabling its application in apartment buildings while retaining the functions of a traditional earthen bed.

[0029] It should be noted that the heating pipe 1 is completely buried in the soil of the bed body. The preferred option is that the vertical distance between the outer surface of the heating pipe 1 and the top surface of the bed board that comes into contact with the human body is between 1 cm and 2 cm. When heating, the temperature of the heating pipe 1 is very high. If the distance is too small, it may cause burns to the human body. If the distance is too large, the time to heat the bed will be too long.

[0030] In one specific embodiment, a functional layer is provided on the upper surface of the built-in layer, and the functional layer is lined with ore. The mineral or mineral in the mineral layer can specifically be jade, salt, or other minerals. The human-shaped design can enhance the appearance of the bed board, reduce the use of ore or mineral materials, and lower costs. It should be noted that jade blocks / pebbles, ore sand, salt, etc., can all be mixed into the soil layer.

[0031] Specifically, the core material of the mineral deposits or mineral layers can be jade. Firstly, jade has excellent heat retention capabilities. When the earthen bed is heated, the jade can absorb and store a large amount of heat. After heating stops, it can slowly release the heat, keeping the earthen bed warm for a longer period. Secondly, many types of jade contain trace elements beneficial to the human body, such as zinc, selenium, magnesium, and iron. These trace elements may be released to some extent when the earthen bed is heated. For example, zinc plays an important role in the human immune system, growth and development, and wound healing; magnesium helps relax muscles, relieve stress, and is also important for maintaining the function of the nervous system. Thirdly, the warming properties of jade can also promote blood circulation. For people who are prone to feeling cold, sleeping on such an earthen bed can have a warming effect, alleviating back pain, joint pain, and other problems to some extent.

[0032] It should be noted that the jade can exist in the form of small pieces, completely buried in the soil layer of the bed body.

[0033] In one specific implementation, the core material of the mineral layer can be ore. First, some ores, especially metallic ores such as iron ore, have high specific heat capacity and thermal conductivity. They can quickly absorb heat transferred by the heating pipe 1 and store heat for a longer period of time. Second, when ore is added to the bed board structure, its good heat storage performance can create a better temperature gradient inside the bed board, more effectively transferring heat to the upper layers, thereby enhancing the overall insulation effect of the bed board. Third, some ores can generate far-infrared radiation after being heated. Far-infrared radiation has a certain degree of penetrability and can penetrate deep into human tissue, promoting cell activity. This far-infrared radiation can promote human metabolism and improve blood circulation. Finally, compared with simple soil materials, the bed board with added ore can reduce the generation of cracks during the preparation process.

[0034] In one specific implementation, the core material of the mineral layer can be salt ore. Firstly, salt ore typically has a high specific heat capacity, giving it strong heat storage and dissipation capabilities. Secondly, salt ore is hygroscopic, allowing it to absorb moisture from the air. In Northeast China, due to the large temperature difference between indoors and outdoors in winter, the prepared bed boards are prone to dampness. Adding salt ore can absorb moisture from the surrounding area, keeping the bed boards dry. Finally, the salt ore particles in the bed board act like the skeleton of sand and gravel in concrete, increasing the density and hardness of the bed board.

[0035] In one specific implementation, the steam equipment can be a steam generator, specifically an electrically heated steam generator, which has many advantages compared to other steam equipment. First, the electrically heated steam generator uses electricity as a heat source, which is clean and environmentally friendly, and has a high energy conversion rate. Second, it is easy to install, simple to operate, and has low maintenance costs. Third, it eliminates the risk of open flames and provides multiple safety protections. Finally, the electrically heated steam generator adopts a fully sealed structure, which can effectively prevent outside air from entering the system, thereby ensuring the purity and quality of the steam and a stable supply.

[0036] It should be noted that compared to water-circulating heating pipe 1, heating via steam heating pipe 1 has the following advantages: First, steam releases a large amount of latent heat during condensation. As steam flows through heating pipe 1 and begins to condense, this latent heat is rapidly released and absorbed by the surrounding air and the pipe walls, achieving efficient heat transfer, i.e., high heat dissipation efficiency; second, steam temperatures are typically higher, generally exceeding 100℃, and can even reach higher temperatures, enabling steam equipment to provide higher heat output, thus achieving high-temperature heating; third, steam does not easily carry impurities and dirt like water when flowing through heating pipe 1, and is less prone to scale formation, i.e., less prone to dirt and blockage; fourth, steam equipment can automatically adjust the steam generation and delivery volume according to load changes. Steam equipment can automatically adjust the steam generation and delivery volume according to demand, i.e., it has a certain degree of self-regulation capability.

[0037] In one specific implementation, the heating pipe 1 can be shaped like a grid: a grid-like arrangement allows steam to be distributed more evenly across the bed, preventing localized overheating or underheating. The grid-like arrangement forms an interconnected pipe network, ensuring that even if a section of pipe becomes blocked or damaged, steam can continue to flow through other pipes, guaranteeing the normal operation of the heating system. This redundant design improves the system's reliability and stability.

[0038] In one specific embodiment, the earthen bed also includes a limiting plate 2. The size and shape of the limiting plate 2 match the bed board formed by the heating pipe 1 buried in the soil. The limiting plate 2 can be made of materials such as sheet metal and is located on the bottom surface of the bed board to support it, ensuring even stress distribution and preventing damage such as soil falling off. A limiting frame 3 is provided around the perimeter of the limiting plate 2, forming an inner cavity with the limiting plate 2 to accommodate the bed board. The limiting plate 2 protects the bed board from the bottom and sides, extending its service life and preventing hygiene problems caused by contact between the bed board and other items or users.

[0039] In one specific embodiment, the earthen bed also includes an insulation board 4 disposed between the limiting plate 2 and the bed board. First, the insulation board 4 can effectively block heat exchange between the bed board and the limiting plate 2, reduce heat loss, and keep the bed board warm; second, the use of the insulation board 4 can reduce reliance on other heating equipment and reduce energy consumption; finally, the insulation board 4 has a relatively low cost, is easy to install and maintain, and has wide applicability.

[0040] In one specific embodiment, the earthen bed also includes a reflective film 5 disposed between the insulation board 4 and the bed board. The reflective film 5 can be made of materials such as aluminum foil reflective film, PET reflective film, or glass microsphere reflective film. Taking aluminum foil reflective film as an example, firstly, when heat radiation (such as infrared radiation emitted by the human body) shines on the surface of the reflective film 5, the aluminum foil layer on the surface of the reflective film 5 will reflect most of the heat radiation back like a mirror, rather than allowing it to pass through or be absorbed. Secondly, according to the law of conservation of energy, the more heat radiation energy is reflected back, the less heat loss from the bed board, thus achieving the purpose of heat preservation. Thirdly, because the reflective film 5 can improve heat preservation efficiency, it reduces energy consumption. Finally, the use of the reflective film 5 can reduce temperature changes on the surface of the bed board and reduce the temperature stress borne by the insulation material. Temperature stress is one of the important factors leading to aging, deformation, and damage of insulation materials. By reducing temperature stress, the reflective film 5 can extend the service life of the insulation material.

[0041] In one specific embodiment, the earthen bed also includes a floor adhesive layer installed on the bed board. The floor adhesive material typically has low thermal conductivity, meaning it doesn't easily conduct heat. Some floor adhesive forms an air layer during installation. Air is a poor conductor of heat, with a very low thermal conductivity. Applying the floor adhesive to the heating device of this invention serves two purposes: firstly, it forms a continuous insulation layer on the surface of the earthen bed, effectively preventing heat generated by the bed board from being transferred to the surrounding environment, thus prolonging the heat dissipation time and keeping the bed board warm for a longer period; secondly, the floor adhesive prevents cold air from directly contacting the bed board surface, reducing the impact of cold air on the bed board temperature. In winter, when the indoor temperature is low, cold air easily penetrates through the ground to the vicinity of the earthen bed, lowering the bed surface temperature. However, with the floor adhesive installed, cold air cannot directly reach the bed surface, thus maintaining a relatively warm bed surface.

[0042] In one specific embodiment, the earthen bed also includes a water collection tank, the water collection pipe of which is connected to the outlet of the heating pipe 1. When the steam generated by the steam equipment flows through the heating pipe 1 to heat the bed board, some of the steam will condense into liquid and flow out from the outlet of the heating pipe 1, and be stored in the water collection tank, thus forming a one-time use of water resources; if the steam equipment uses the water in the water collection tank to produce steam, a water / steam external circulation path consisting of the steam equipment, the heating pipe 1, and the water collection tank is formed, realizing the recycling of water resources.

[0043] It should be noted that heating pipe 1 can have one or more outlets, each outlet independently connected to a collection tank, or multiple outlets connected to the same collection tank. The number and location of the collection tanks depend on the number and location of the outlets of heating pipe 1. Of course, the collection pipe of the collection tank is not a necessary component; the collection tank can be placed at the outlet of heating pipe 1 to directly collect condensate.

[0044] In one specific embodiment, the earthen bed includes a steel structure support for supporting the bed board formed by the heating pipe 1 buried in the soil.

[0045] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this technical solution 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 technical solution.

[0046] In this technical solution, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this technical solution according to the specific circumstances.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present technical solution. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An earth-berm bed, characterized in that, The application relates to a soil-kang bed, which comprises a heating device and a bed body, wherein the heating device is a steam device and a heating pipe, the bed body comprises a bed frame and a bed plate, the bed plate has an inner layer, the heating pipe is embedded in the inner layer, the output end of the steam device is connected with the inlet of the heating pipe, steam generated by the steam device is introduced into the heating pipe, flows through the heating pipe in the inner layer and is discharged from the outlet of the heating pipe, the heating pipe further comprises a main heating pipe, auxiliary heating pipes and a tail heating pipe connected with the outlet of the heating pipe, along the steam flow direction, the main heating pipe is sequentially connected with N auxiliary heating pipes at intersection positions, a first intersection inlet and N-1 second intersection inlets are formed in the main heating pipe, a T-shaped inlet is formed in the connection position of the heating pipe and the tail heating pipe, the hole diameters of the N-1 second intersection inlets are the same, the hole diameter of the first intersection inlet is 1.25 to 1.5 times that of the second intersection inlet, and the hole diameter of the T-shaped inlet is 1.5 to 2 times that of the second intersection inlet.

2. The earth-berm bed according to claim 1, wherein, A functional layer is arranged on the upper surface of the inner layer, and ores are arranged in the functional layer.

3. The earth-berm bed according to claim 2, wherein, The steam device is a steam generator.

4. The earth-berm bed according to claim 3, wherein, The heating pipe is in a grid shape.

5. The sod roof bed according to claim 1, wherein The soil-kang bed further comprises a limiting plate arranged on the bottom surface of the bed plate, a limiting frame is arranged on the periphery of the limiting plate, and the limiting frame and the limiting plate form an inner cavity for accommodating the bed plate.

6. The earth-berm bed according to claim 5, wherein, The soil-kang bed further comprises a heat preservation plate arranged between the limiting plate and the bed plate.

7. The earth-berm bed according to claim 6, wherein, The soil-kang bed further comprises a reflecting film arranged between the heat preservation plate and the bed plate.

8. The earth-berm bed according to claim 7, wherein, The soil-kang bed further comprises a floor adhesive layer arranged on the top surface of the bed plate.

9. The earth-berm bed according to any one of claims 1 to 8, wherein, The soil-kang bed further comprises a water collecting tank, and a water collecting pipe of the water collecting tank is connected with the outlet of the heating pipe.