Detachable sleeping bag
By designing removable protective and insulating components for the sleeping bag, the problem of easy damage to the bottom of traditional sleeping bags when used outdoors has been solved, achieving better protection and warmth, and improving comfort and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
When used outdoors, the bottom of traditional one-piece sleeping bags is easily scratched or worn by sharp objects, affecting their lifespan and comfort.
A detachable sleeping bag was designed, comprising a protective component and a warming component. The protective component consists of a protective pad, a sponge block, a locking block, and a spring, and the sleeping bag and the protective pad are detachably connected through a locking structure. The warming component achieves its warming effect through a filling chamber, warming fabric, and an aluminum foil.
It effectively protects the bottom of the sleeping bag from damage by sharp objects, while improving the sleeping bag's warmth and comfort, and enhancing the equipment's flexibility and durability.
Smart Images

Figure CN224023286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sleeping bag technical field especially relates to a detachable sleeping bag. BACKGROUND
[0002] The detachable sleeping bag is a sleeping bag composed of multiple parts, which can be disassembled or combined according to the needs of users. This design makes the sleeping bag more flexible in function, which can adapt to different environments and climate conditions. The detachable sleeping bag is usually composed of two or more independent parts to form a main sleeping bag and an inner bag that can be used alone. These parts can be connected together or used separately through zippers, buckles or other connection methods. The design aims to provide users with more choices, which can be used alone or combined to meet different use requirements.
[0003] The common sleeping bag on the market has a relatively simple mechanical structure, which is mainly sewn by an outer waterproof fabric, a middle layer of warm filling material and an inner comfortable fabric. The technical principle is to resist the outside wind and rain through the characteristics of each layer of material, retain heat in the middle layer and provide comfort to the human body in the inner layer. The overall design makes the sleeping bag more convenient in production and manufacturing process, and the cost is relatively easy to control.
[0004] However, this traditional overall sleeping bag has some problems in actual use. When people use sleeping bags outdoors, especially in some complex terrain areas, such as ground covered with sharp objects such as gravel and branches, the bottom of the sleeping bag directly contacts the ground, which is easy to be scratched or worn by these sharp objects, not only affecting the service life of the sleeping bag, but also making the user feel the pressure of foreign objects during sleep, which seriously affects the sleep experience and use comfort. Therefore, a detachable sleeping bag is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a detachable sleeping bag, which aims to improve the problem that gravel on the ground easily affects the use of users during the use of the sleeping bag.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A detachable sleeping bag, comprising a sleeping bag, the sleeping bag is internally provided with a warm keeping assembly, and the bottom of the sleeping bag is provided with a protection assembly.
[0008] The protective assembly includes a protective pad located at the bottom of the sleeping bag. Multiple sponge blocks are fixedly connected to the outer wall of the sleeping bag. A connecting plate is fixedly connected inside each sponge block. A connecting post is fixedly connected to the bottom of each connecting plate. A connecting sleeve is slidably connected to the outer wall of each connecting post. A semi-circular locking block (first) is fixedly connected to the bottom of each connecting sleeve. A semi-circular locking block (second) is fixedly connected to the bottom of each connecting post. Multiple telescopic posts are fixedly connected inside the protective pad. A cylindrical locking block is fixedly connected to the output end of each telescopic post. The cylindrical locking block and the semi-circular locking block (second) engage with each other. A spring is provided on the outer wall of each telescopic post. One end of the spring is fixedly connected to the outer wall of the cylindrical locking block, and the other end of the spring is fixedly connected to the outer wall of the telescopic post.
[0009] As a further description of the above technical solution:
[0010] The second semi-circular card block is slidably connected inside the protective pad, and the sponge block is in contact with the protective pad.
[0011] As a further description of the above technical solution:
[0012] The insulation component includes an insulation fabric located on the inner wall of the sleeping bag, and the sleeping bag and the insulation fabric are glued together.
[0013] As a further description of the above technical solution:
[0014] The sleeping bag has an internal filling compartment for storing cotton or down.
[0015] As a further description of the above technical solution:
[0016] An aluminum film is provided on the inner wall of the thermal insulation fabric, and the aluminum film is bonded and fixed to the thermal insulation fabric with adhesive.
[0017] As a further description of the above technical solution:
[0018] The sleeping bag has an elastic band that slides inside, which is used to adjust the gap in the head area of the sleeping bag.
[0019] This utility model has the following beneficial effects:
[0020] 1. In this utility model, the bottom of the sleeping bag is protected by a protective pad. At the same time, the semi-circular locking block and the cylindrical locking block are engaged to facilitate the installation and removal of the protective pad and the sleeping bag, and to facilitate the storage of the protective pad. This achieves the effect of protecting the bottom of the protective pad, solving the problem that gravel on the ground can easily affect the user's use of the sleeping bag during use, and enhancing the comfort of using the equipment.
[0021] 2. In this utility model, the filling chamber provides filling space for cotton or down, ensuring even distribution inside the device. The insulating fabric reduces air circulation. Next, the aluminum foil reflects the heat from the inner wall of the sleeping bag. Finally, the elastic band is pulled to adjust the gap between the head area of the sleeping bag and the outside, achieving the effect of keeping the device warm. This solves the problem of excessive cold air entering the product during use and affecting the user experience, thus enhancing the product's warmth retention. Attached Figure Description
[0022] Figure 1 This is a three-dimensional schematic diagram of a detachable sleeping bag proposed in this utility model;
[0023] Figure 2 This is a schematic diagram of a cylindrical locking block structure for a detachable sleeping bag proposed in this utility model;
[0024] Figure 3 This is a schematic diagram of the aluminum film planar structure of a detachable sleeping bag proposed in this utility model.
[0025] Legend:
[0026] 1. Protective pad; 2. Sleeping bag; 3. Sponge block; 4. Connecting plate; 5. Connecting sleeve; 6. Semi-circular locking block one; 7. Connecting column; 8. Semi-circular locking block two; 9. Cylindrical locking block; 10. Telescopic column; 11. Spring; 12. Filling compartment; 13. Thermal insulation fabric; 14. Aluminum foil; 15. Elastic band. Detailed Implementation
[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Reference Figure 1 and Figure 2 One embodiment of this utility model is a detachable sleeping bag, including a sleeping bag 2, with a warming component inside the sleeping bag 2 and a protective component at the bottom of the sleeping bag 2;
[0029] The protective assembly includes a protective pad 1, located at the bottom of the sleeping bag 2, providing solid support and protection against uneven ground or hard objects. Multiple foam blocks 3 are fixedly connected to the outer wall of the sleeping bag 2. The design of the foam blocks 3 not only increases comfort but also effectively absorbs the impact transmitted from the ground. Each foam block 3 has a connecting plate 4 fixedly connected inside, which serves as a connection and support in this structure, ensuring the stability of the overall assembly. Each connecting plate 4 has a connecting post 7 fixedly connected to its bottom. The connecting post 7, through its sliding connection, allows the connecting sleeve 5 to be adjusted as needed to adapt to different environmental requirements. Each connecting post 7 has a connecting sleeve 5 slidably connected to its outer wall. The bottom of each connecting sleeve 5 is fixedly connected to a semi-circular locking block 6. The semi-circular locking block 6 is designed to facilitate quick connection and disassembly with other components. Each connecting post 7 also has a semi-circular locking block 8 fixedly connected to its bottom, which serves as a locking and securing element in this system, ensuring the overall robustness of the protective assembly. Multiple telescopic columns 10 are fixedly connected inside the protective pad 1. The function of the telescopic columns 10 is to provide adjustable support and improve the flexibility of use. Each telescopic column 10 has a cylindrical locking block 9 fixedly connected to its output end. The cylindrical locking block 9 engages with the semi-circular locking block 8 to form a stable connection, ensuring a reliable connection between the protective pad 1 and the sleeping bag 2. Each telescopic column 10 has a spring 11 on its outer wall. One end of the spring 11 is fixedly connected to the outer wall of the cylindrical locking block 9, and the other end is fixedly connected to the outer wall of the telescopic column 10. The presence of the spring 11 allows the telescopic column 10 to generate appropriate resistance when subjected to external forces, thereby improving the stability and comfort of the overall structure. The semi-circular locking block 8 is slidably connected inside the protective pad 1, providing flexible adjustment space to ensure adaptability to different usage situations. The sponge block 3 fits snugly against the protective pad 1, further enhancing the overall comfort and protective function, allowing users to enjoy a better experience when using the sleeping bag 2.
[0030] Specifically, during the connection process between the sleeping bag 2 and the protective pad 1, the sponge block 3 is first placed on top of the protective pad 1. Then, the semi-circular locking block 8 moves into the interior of the protective pad 1. During this process, the outer curved surface of the semi-circular locking block 8 applies pressure to the cylindrical locking blocks 9 on both sides, causing them to move in opposite directions. As the cylindrical locking blocks 9 move, they push the telescopic column 10, causing it to contract and compress the spring 11. When the top plane of the semi-circular locking block 8 moves to a specific groove position inside the cylindrical locking block 9, the cylindrical locking block 9 is no longer subjected to the pressure of the semi-circular locking block 8. With the help of the rebound force of the spring 11, the cylindrical locking block 9 is pushed in and locked onto the outer wall of the semi-circular locking block 8, thus achieving the connection and fixation between the protective pad 1 and the sleeping bag 2. This design effectively utilizes the protective pad 1 to protect the bottom of the sleeping bag 2, preventing objects such as gravel from the ground from affecting the user's experience inside the sleeping bag 2. When disassembly and storage are required, the user simply presses the foam block 3 again, and the connecting disc 4 pushes the semi-circular latch 6 at the bottom of the connecting sleeve 5 downwards. At this time, the arc surface at the top of the semi-circular latch 6 will also apply pressure to the cylindrical latch 9, thereby separating the cylindrical latch 9 from the semi-circular latch 8. When the semi-circular latch 6 and the semi-circular latch 8 overlap, the user can pull the foam block 3 upwards. With the help of the arc surfaces of the outer walls of the semi-circular latch 6 and the semi-circular latch 8, the semi-circular latch 8 can be freed from the cylindrical latch 9, thus smoothly completing the disassembly of the protective pad 1 from the sleeping bag 2, facilitating subsequent storage.
[0031] Reference Figure 1 and Figure 3 The insulation components include an insulating fabric 13, which is located on the inner wall of the sleeping bag 2, providing effective insulation to ensure the user stays warm while sleeping. The sleeping bag 2 and the insulating fabric 13 are glued together, which not only enhances the stability of the structure but also prevents movement during use. The sleeping bag 2 has a filling compartment 12 inside, which provides space for cotton or down, ensuring even distribution of the insulation material and improving the overall insulation effect. The inner wall of the insulating fabric 13 is lined with an aluminum foil 14, which not only effectively reflects the heat emitted by the user but also further enhances the insulation performance, ensuring that heat is not easily lost. The aluminum foil 14 and the thermal insulation fabric 13 are also glued together. This connection method ensures that the aluminum foil 14 is not easy to fall off during use, thus continuing to perform its function of reflecting heat. The sleeping bag 2 has an elastic band 15 that slides inside. The elastic band 15 is used to adjust the gap in the head area of the sleeping bag 2. By adjusting the size of the gap, the entry of cold air from the outside can be effectively reduced, thus improving the insulation effect.
[0032] Specifically, in the insulation process inside the sleeping bag 2, the cotton or down filling the filling compartment 12 plays a crucial role, providing excellent insulation for the sleeping bag 2. The design of the filling compartment 12 allows the cotton or down to move freely, ensuring that they are evenly distributed inside the sleeping bag 2 and preventing piling up or shifting. This even distribution ensures consistent insulation performance throughout the sleeping bag 2, minimizing channels for heat loss. In addition, the use of insulating fabric 13 further enhances the insulation effect of the device. The weave of the insulating fabric 13 creates different pores and structures, with tightly woven insulating fabric 13 having smaller pores, restricting airflow within it. This design effectively reduces heat loss due to air convection, allowing warm air inside the sleeping bag 2 to be retained for a longer period. To further enhance warmth, an aluminum foil 14 is introduced to reflect heat emitted by the user, ensuring that heat remains inside the sleeping bag 2 for an extended period. This reflective effect effectively guides the user's generated heat back, creating a warm environment and further improving warmth. Finally, by pulling the elastic band 15, gaps between the sleeping bag 2 and the external environment can be reduced, preventing cold air from entering the sleeping bag 2 through these gaps. The elastic band 15 enhances the sealing of the device, further improving warmth and ensuring a comfortable sleeping experience for the user in various environments. Overall, these design features work together to give the sleeping bag 2 excellent warmth retention, effectively coping with low-temperature environments.
[0033] Working principle: During the connection process between the sleeping bag 2 and the protective pad 1, the sponge block 3 is placed on top of the protective pad 1, and the semi-circular locking block 8 is moved into the interior of the protective pad 1. During this process, the arc surface of the outer wall of the semi-circular locking block 8 will compress the cylindrical locking blocks 9 on both sides, causing the cylindrical locking blocks 9 on both sides to move to the opposite side. As the cylindrical locking blocks 9 move, they will push the telescopic column 10 to retract and compress the spring 11. When the flat surface of the top of the semi-circular locking block 8 moves to a specific groove inside the cylindrical locking block 9, the cylindrical locking block 9 is no longer subjected to the compressive force of the semi-circular locking block 8. The rebound force of the spring 11 pushes the cylindrical locking block 9 to lock onto the outer wall of the semi-circular locking block 8, achieving the connection between the protective pad 1 and the sleeping bag 2. The connection is fixed, and the protective pad 1 provides protection for the bottom of the sleeping bag 2, preventing gravel on the ground surface from affecting the user's experience inside the sleeping bag 2. When disassembly and storage are required, press the sponge block 3 again, and the connecting plate 4 will push the semi-circular locking block 6 at the bottom of the connecting sleeve 5 downward. Similarly, the arc surface at the top of the semi-circular locking block 6 will be used to squeeze the cylindrical locking block 9, causing the cylindrical locking block 9 and the semi-circular locking block 8 to separate. When the semi-circular locking block 6 and the semi-circular locking block 8 overlap, pull the sponge block 3 upward. The arc surface of the outer wall of the semi-circular locking block 6 and the semi-circular locking block 8 will be used to free the semi-circular locking block 8 from the locking position of the cylindrical locking block 9, thus achieving the disassembly of the protective pad 1 and the sleeping bag 2 for easy subsequent storage.
[0034] During the internal insulation process of sleeping bag 2, the cotton or down filling the filling compartment 12 provides insulation for sleeping bag 2. At the same time, the filling compartment 12 provides space for the cotton or down to move, so that the cotton or down is evenly distributed inside sleeping bag 2, avoiding accumulation or displacement, ensuring that the insulation performance of the entire sleeping bag 2 is uniform and reducing the channels for heat loss. Then, the insulation effect of the device is enhanced by the insulation fabric 13. The weaving method of the insulation fabric 13 creates different pores and structures. The tightly woven insulation fabric 13 has small pores, which restricts the flow of air within it, reducing heat loss caused by air convection. Then, the aluminum foil 14 is used to reflect the heat emitted by the user, ensuring that the heat can be retained inside sleeping bag 2 for a long time. Finally, by pulling the elastic band 15, the gap between sleeping bag 2 and the outside is reduced, preventing cold air from entering the interior of sleeping bag 2 through the gap, thus enhancing the insulation effect of the device.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A detachable sleeping bag, comprising a sleeping bag (2), characterized in that: The sleeping bag (2) is equipped with a warming component inside, and a protective component is provided at the bottom of the sleeping bag (2); The protective assembly includes a protective pad (1) located at the bottom of the sleeping bag (2). Multiple sponge blocks (3) are fixedly connected to the outer wall of the sleeping bag (2). A connecting plate (4) is fixedly connected inside each sponge block (3). A connecting post (7) is fixedly connected to the bottom of each connecting plate (4). A connecting sleeve (5) is slidably connected to the outer wall of each connecting post (7). A semi-circular locking block (6) is fixedly connected to the bottom of each connecting sleeve (5). The bottom of each connecting post (7)... Each part is fixedly connected with a semi-circular locking block two (8). Multiple telescopic columns (10) are fixedly connected inside the protective pad (1). A cylindrical locking block (9) is fixedly connected to the output end of each telescopic column (10). The cylindrical locking block (9) and the semi-circular locking block two (8) are engaged. A spring (11) is provided on the outer wall of each telescopic column (10). One end of the spring (11) is fixedly connected to the outer wall of the cylindrical locking block (9), and the other end of the spring (11) is fixedly connected to the outer wall of the telescopic column (10).
2. A detachable sleeping bag according to claim 1, characterized in that: The semi-circular card block 2 (8) is slidably connected inside the protective pad (1), and the sponge block (3) is attached to the protective pad (1).
3. A detachable sleeping bag according to claim 1, characterized in that: The thermal insulation component includes a thermal insulation fabric (13), which is located on the inner wall of the sleeping bag (2), and the sleeping bag (2) and the thermal insulation fabric (13) are glued together.
4. A detachable sleeping bag according to claim 3, characterized in that: The sleeping bag (2) has a filling compartment (12) inside, which is used to provide space for cotton or down.
5. A detachable sleeping bag according to claim 4, characterized in that: An aluminum film (14) is provided on the inner wall of the thermal insulation fabric (13), and the aluminum film (14) is bonded and fixed to the thermal insulation fabric (13) with the same adhesive.
6. A detachable sleeping bag according to claim 5, characterized in that: The sleeping bag (2) has an elastic band (15) that slides inside, and the elastic band (15) is used to adjust the gap in the head area of the sleeping bag (2).