A sponge pillow with replaceable inner core
Patent Information
- Application Number
- CN202522027154.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0003]现有的海绵枕大多为一体式结构,软硬也无法调节,只能根据个人需求选择不同硬度的海绵枕,但是不同情况、环境及时间可能会对海绵枕的硬度需求也不相同,目前只能对海绵枕进行更换,比较不便,因此,亟待一种改进的技术来解决现有技术中所存在的这一问题
[0011](1)海绵枕体内部沿水平方向分别开设有上端插槽及下端插槽,方便软质海绵体及硬质海绵体的插接及调换,从而可根据个人需求调节接触位置海绵的软硬度,灵活性大大提高。
Smart Images

Figure CN224820252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sponge pillow technology, specifically a sponge pillow with an interchangeable inner core. Background Technology
[0002] A sponge pillow is a pillow filled with sponge. Sponge is a type of foam material with high elasticity and compressibility, which can effectively relieve pressure. It is also absorbent and breathable, keeping you cool and dry.
[0003] Most existing foam pillows are one-piece structures with no adjustable firmness. Users can only choose different firmnesses based on their individual needs. However, different situations, environments, and times may require different firmnesses. Currently, the only solution is to replace the foam pillow, which is inconvenient. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content
[0004] The purpose of this invention is to provide a sponge pillow with an interchangeable inner core to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sponge pillow with an interchangeable inner core, comprising a sponge pillow body, a soft sponge body, and a hard sponge body;
[0006] The upper surface of the sponge pillow body is a concave arc shape, the upper surface of the sponge pillow body is densely covered with protrusions, the two ends of the sponge pillow body are provided with grooves, the upper end of the interior of the sponge pillow body is provided with an upper slot, the lower end of the interior of the sponge pillow body is provided with a lower slot, the lower surface of the upper slot and the right end of the upper slot are provided with a first slot and a second slot, and the upper surface of the lower slot and the left end of the lower slot are provided with a third slot and a fourth slot.
[0007] The soft and hard sponge bodies have identical structures and are both composed of end sponge bodies and insert sponge bodies. An insert sponge body is vertically arranged at the inner end of the end sponge body and on one side. One side of the insert sponge body is flush with the outer edge of the end sponge body, and the other side of the insert sponge body is provided with a first protrusion and a second protrusion. The first protrusion matches the first and third slots, and the second protrusion matches the second and fourth slots. The insert sponge bodies of the soft and hard sponge bodies are respectively inserted into the upper and lower slots. The end sponge body is inserted into the groove on the corresponding side of the sponge pillow body.
[0008] Preferably, the present invention provides a sponge pillow with an interchangeable inner core, wherein the length, width, and height of the upper and lower slots are consistent with the length, width, and height of the inserted sponge body.
[0009] Preferably, the present invention provides a sponge pillow with an interchangeable inner core, wherein the cross-section of the end sponge body matches the cross-section of the sponge pillow body located at the groove.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] (1) The inside of the sponge pillow is provided with upper and lower slots along the horizontal direction, which facilitates the insertion and replacement of soft and hard sponge bodies, so that the softness and hardness of the sponge at the contact position can be adjusted according to individual needs, greatly improving flexibility.
[0012] (2) The upper slot is located on the right end and has a first slot and a second slot. The lower slot is located on the left end and has a third slot and a fourth slot. The soft sponge and the hard sponge have the same structure and are both composed of an end sponge and an insert sponge. The insert sponge has a first protrusion and a second protrusion on one side. The first protrusion cooperates with the first slot or the third slot respectively, and the second protrusion cooperates with the second slot or the fourth slot respectively, thereby preventing the soft sponge and the hard sponge from easily falling out of the upper slot or the lower slot.
[0013] (3) Grooves are reserved at both ends of the sponge pillow to enable the insertion of the soft sponge and the hard sponge end sponge, further improving the connection between the soft sponge and the hard sponge and the sponge pillow. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of a sponge pillow.
[0016] Figure 3 For the appendix Figure 2 A schematic diagram of the right-side view structure;
[0017] Figure 4 For the appendix Figure 2 A schematic diagram of the left-side view structure;
[0018] Figure 5 This is a schematic diagram of the structure of a soft sponge (the structure of a hard sponge is the same as that of a soft sponge).
[0019] In the diagram: 1. Sponge pillow body; 2. Soft sponge body; 3. Hard sponge body; 4. Protrusion; 5. Groove; 6. Upper slot; 7. Lower slot; 8. First slot; 9. Second slot; 10. Third slot; 11. Fourth slot; 12. End sponge body; 13. Inserted sponge body; 14. First protrusion; 15. Second protrusion. Detailed Implementation
[0020] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", 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 utility model 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 utility model.
[0022] Please see Figure 1-5 This utility model provides a technical solution: a sponge pillow with an interchangeable inner core, comprising a sponge pillow body 1, a soft sponge body 2, and a hard sponge body 3;
[0023] The upper surface of the sponge pillow 1 is a concave arc shape. The upper surface of the sponge pillow 1 is densely covered with protrusions 4. The two ends of the sponge pillow 1 are provided with grooves 5. The upper end of the interior of the sponge pillow 1 is provided with an upper slot 6. The lower end of the interior of the sponge pillow 1 is provided with a lower slot 7. The lower surface of the upper slot 6 and the right end are provided with a first slot 8 and a second slot 9. The upper surface of the lower slot 7 and the left end are provided with a third slot 10 and a fourth slot 11.
[0024] The soft sponge body 2 and the hard sponge body 3 have identical structures and are both composed of an end sponge body 12 and an insert sponge body 13. An insert sponge body 13 is vertically positioned at the inner end of the end sponge body 12 and on one side. The end sponge body 12 and the insert sponge body 13 are integrally molded to ensure integrity. One side of the insert sponge body 13 is flush with the outer edge of the end sponge body 12, and the other side of the insert sponge body 13 has a first protrusion 14 and a second protrusion 15. The first protrusion 14 matches the first slot 8 and the third slot 10, and the second protrusion 15 matches the second slot 9 and the fourth slot 11. The insertable sponge 13 of the sponge body 3 is inserted into the upper slot 6 and the lower slot 7 respectively. The length, width and height of the upper slot 6 and the lower slot 7 are consistent with the length, width and height of the insertable sponge 13 to ensure the stability of the insertable sponge 13 after it is inserted into the upper slot 6 or the lower slot 7. The insertable sponge 13 will not loosen when there is no external force. The end sponge 12 is inserted into the groove 5 on the corresponding side of the sponge pillow 1. The cross section of the end sponge 12 matches the cross section of the sponge pillow 1 located in the groove 5 to ensure the stability of the connection between the end sponge 12 and the sponge pillow 1.
[0025] Installation method and operating principle: The sponge pillow body 1, soft sponge body 2, and hard sponge body 3 are manufactured using an injection molding foam mold. The sponge pillow body 1 has two core molds inside to form the upper slot 6, lower slot 7, and the first and second slots 8 and 9 within the upper slot 6, and the third and fourth slots 10 and 11 within the lower slot 7. Grooves 5 are pre-drilled at both ends of the sponge pillow body 1. The soft sponge body 2 and hard sponge body 3 have identical structures, each consisting of an end sponge body 12 and an insert sponge body 13. The insert sponge body 13 has a first protrusion 14 and a second protrusion 15 on one side. The first protrusion 14 matches the first slot 8 and the third slot 10, and the second protrusion 15 matches the second slot 9 and the fourth slot 11. The difference between soft sponge 2 and hard sponge 3 is that hard sponge is high-density, has fine pores, and strong resilience, while soft sponge is low-density, has loose pores, is soft and easily deformed. The difference in feel is that soft sponge 2 is soft, fluffy, and easy to press, while hard sponge is firm, supportive, and requires effort to press. In use, according to personal needs, insert the soft sponge 2 into the upper slot 6, and then insert the hard sponge 3 into the lower slot 7. The first protrusion 14 and the second protrusion 15 of the soft sponge 2 are inserted into the first slot 8 and the second slot 9 in the upper slot 6, respectively. The first protrusion 14 and the second protrusion 15 of the hard sponge 3 are inserted into the third slot 10 and the fourth slot 11 in the lower slot 7, respectively. At this time, the end sponges 12 of the soft sponge 2 and the hard sponge 3 are located in the grooves 5 at both ends of the sponge pillow body 1. If the hard sponge 3 is inserted into the upper slot 6, the soft sponge 2 is inserted into the lower slot 7. This utility model has a reasonable structure. The interior of the sponge pillow body 1 has an upper slot 6 and a lower slot 7 horizontally arranged to facilitate the insertion and replacement of the soft sponge body 2 and the hard sponge body 3. This allows for adjustment of the softness and hardness of the sponge at the contact point according to individual needs, greatly improving flexibility. Furthermore, the upper slot 6 has a first slot 8 and a second slot 9 on its right end, and the lower slot 7 has a third slot 10 and a fourth slot 11 on its left end. The soft sponge body 2 and the hard sponge body 3 have identical structures, both consisting of an end sponge body 12 and an insertable sponge body 13. Furthermore, a first protrusion 14 and a second protrusion 15 are provided on one side of the sponge body 13. The first protrusion 14 cooperates with the first slot 8 or the third slot 10 respectively, and the second protrusion 15 cooperates with the second slot 9 or the fourth slot 11 respectively, thereby preventing the soft sponge body 2 and the hard sponge body 3 from easily falling out of the upper slot 6 or the lower slot 7. The two ends of the sponge pillow body 1 are reserved with grooves 5 to realize the insertion of the end sponge body 12 of the soft sponge body 2 and the hard sponge body 3, further improving the connection between the soft sponge body 2 and the hard sponge body 3 and the sponge pillow body 1.
[0026] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A sponge pillow with an interchangeable inner core, characterized in that: It includes a sponge pillow body (1), a soft sponge body (2), and a hard sponge body (3); The upper surface of the sponge pillow (1) is a concave arc shape. The upper surface of the sponge pillow (1) is densely covered with protrusions (4). The two ends of the sponge pillow (1) are provided with grooves (5). The upper end of the interior of the sponge pillow (1) is provided with an upper slot (6). The lower end of the interior of the sponge pillow (1) is provided with a lower slot (7). The lower surface of the upper slot (6) and the right end are provided with a first slot (8) and a second slot (9). The upper surface of the lower slot (7) and the left end are provided with a third slot (10) and a fourth slot (11). The soft sponge (2) and the hard sponge (3) have the same structure and are both composed of an end sponge (12) and an insert sponge (13). The insert sponge (13) is vertically arranged at the inner end of the end sponge (12) and on one side. One side of the insert sponge (13) is flush with the outer edge of the end sponge (12). The other side of the insert sponge (13) is provided with a first protrusion (14) and a second protrusion (15). The first protrusion (14) matches the first slot (8) and the third slot (10). The second protrusion (15) matches the second slot (9) and the fourth slot (11). The insert sponge (13) of the soft sponge (2) and the hard sponge (3) are respectively inserted into the upper slot (6) and the lower slot (7). The end sponge (12) is inserted into the groove (5) on the corresponding side of the sponge pillow (1).
2. A sponge pillow with an interchangeable inner core according to claim 1, characterized in that: The length, width, and height of the upper slot (6) and lower slot (7) are consistent with the length, width, and height of the inserting sponge (13).
3. A sponge pillow with an interchangeable inner core according to claim 1, characterized in that: The cross section of the end sponge (12) matches the cross section of the sponge pillow (1) located in the groove (5).