A heating bag box body assembly structure with a limiting buckle
By designing a threaded column and inclined column structure, combined with a locking mechanism of positioning blocks and wedge blocks, the problem of displacement and uneven contact of the heating pack body during heating is solved, achieving stable clamping and safe locking, thus improving heating stability and safety.
Patent Information
- Application Number
- CN202610585794.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-29
- Publication Date
- 2026-06-12
Smart Images

Figure CN122186534A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heating packaging assembly technology, and in particular to a heating pack box assembly structure with limiting buckles. Background Technology
[0002] The heating pack box assembly structure mainly consists of a box body, a cover plate, and an integrated elastic buckle and limiting boss. The side wall of the box body is equipped with a cantilever hook, and the cover plate is equipped with a corresponding slot. During assembly, the hook elastically deforms and rebounds to lock after passing through the slot, achieving quick fastening. The inner wall of the box body is equipped with a limiting boss to restrict the heating pack from moving up and down and shifting horizontally, preventing loose assembly. It is suitable for self-heating food packaging, taking into account both safety and production efficiency. An existing heating pack box assembly structure with a limiting buckle fixes the heating pack by setting a protruding part inside the box. However, due to the limited protrusion, the heating pack may bulge during use, causing it to shift and not make even contact with the cold water. Therefore, a heating pack box assembly structure with a limiting buckle is needed. Summary of the Invention
[0003] To overcome the above deficiencies, the present invention provides a heating pack box assembly structure with a limiting buckle, which aims to improve the problem of heating pack displacement and uneven contact with cold water caused by heating bulge.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a heating pack box assembly structure with a limiting buckle, comprising a box, a fixing hole inside the box, a sliding hole inside the box, a threaded post threadedly connected inside the box, a handle fixedly connected to the top of the threaded post, a first inclined post rotatably connected to the bottom of the threaded post, the outer wall of the first inclined post slidably connected to the inside of the sliding hole, a second inclined post slidably connected to the lower surface of the first inclined post, a fixing post fixedly connected to the outer wall of the second inclined post, the outer wall of the fixing post slidably connected to the inside of the box, a spring slidably connected to the outer wall of the fixing post, and a positioning component slidably connected inside the box.
[0005] Preferably, the positioning component includes a positioning block, the outer wall of which is slidably connected to the inside of the box, the outer wall of which is slidably connected to the inside of the fixing hole, and a box lid is fixedly connected to the upper surface of the positioning block, with an exhaust hole provided inside the box lid.
[0006] Preferably, a connecting rod is fixedly connected to the lower surface of the positioning block, and a wedge-shaped slider is slidably connected to the outer wall of the connecting rod, with the outer wall of the wedge-shaped slider slidably connected inside the fixing hole.
[0007] Preferably, a wedge block is fixedly connected to the lower surface of the connecting rod, and the outer wall of the wedge block is slidably connected to the inside of the fixing hole.
[0008] Preferably, the outer wall of the wedge block is slidably connected to an inclined block, and the outer wall of the inclined block is slidably connected inside the fixing hole.
[0009] Preferably, the outer wall of the inclined block is fitted with a limiting block, and the outer wall of the limiting block is fixedly connected to the inside of the box.
[0010] Preferably, a compression spring is fixedly connected to the outer wall of the inclined block.
[0011] Preferably, the other end of the compression spring is fixedly connected to a T-shaped block, and the outer wall of the T-shaped block is fixedly connected to the inside of the box.
[0012] The present invention has the following beneficial effects: 1. In this invention, rotating the handle drives the inclined column one to slide along the inside of the sliding hole through the threaded column. The inclined column one pushes the inclined column two to compress the spring, causing the fixed column to slide out of the box, thereby achieving precise positioning and stable clamping of the heating pack, avoiding displacement during heating, ensuring uniform contact with cold water, and improving heating stability.
[0013] 2. In this invention, the positioning block slides into the box along the fixing hole, and the wedge block pushes the compression spring through the inclined block. When the inclined block is in contact with the inner wall of the connecting rod, the box and the lid are in contact and fixed, thereby achieving a stable locking between the lid and the box body, preventing the steam pressure from opening the lid during heating, and improving the safety of use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of a heating pack box assembly structure with a limiting buckle proposed in this invention; Figure 2 This is a partial structural diagram of a heating pack box assembly structure with limiting buckles proposed in this invention; Figure 3 This is a partial structural diagram of the fixing column of the heating pack box assembly structure with limiting buckle proposed in this invention; Figure 4 This is a partial structural diagram of the inclined block of a heating pack box assembly structure with limiting buckle proposed in this invention.
[0015] Legend: 1. Box; 2. Fixing hole; 3. Sliding hole; 4. Threaded post; 5. Handle; 6. Angled post one; 7. Angled post two; 8. Fixing post; 9. Spring; 10. Positioning block; 11. Box cover; 12. Vent hole; 13. Wedge slider; 14. Connecting rod; 15. Wedge block; 16. Angled block; 17. Limiting block; 18. Compression spring; 19. T-block. Detailed Implementation
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0017] Reference Figures 1-3 The present invention provides an embodiment of a heating pack box assembly structure with a limiting buckle, comprising a box 1, a fixing hole 2 and a sliding hole 3 inside the box 1, a threaded post 4 threadedly connected inside the box 1, a handle 5 fixedly connected to the top of the threaded post 4, a rotatably connected inclined post 6 at the bottom of the threaded post 4, the outer wall of inclined post 6 slidably connected inside the sliding hole 3, an inclined post 7 slidably connected to the lower surface of inclined post 6, a fixing post 8 fixedly connected to the outer wall of inclined post 7, the outer wall of fixing post 8 slidably connected inside the box 1, a spring 9 slidably connected to the outer wall of fixing post 8, and a positioning component slidably connected inside the box 1. Specifically, box 1 is a rectangular box. The fixing hole 2 is opened on the longer side of box 1, and the sliding hole 3 is opened on the shorter side of box 1. Box 1 plays a positioning role for threaded post 4, and threaded post 4 plays a fixing role for handle 5. Turning handle 5 can drive threaded post 4 to slide inclined post 6 into the sliding hole 3. When sliding, the inclined surface of inclined post 6 pushes inclined post 7 to compress spring 9 through the inclined surface of inclined post 7. The fixing post 8 plays a limiting role for spring 9 to prevent displacement. One end of spring 9 is fixed inside box 1, and the other end is fixed to the outer wall of inclined post 7. Inclined post 7 compresses spring 9 to make fixing post 8 slide out of the inside of box 1, fixing the heating pack, achieving precise positioning and stable clamping of the heating pack, and avoiding displacement during heating.
[0018] Reference Figure 2 The positioning component includes a positioning block 10, the outer wall of the positioning block 10 is slidably connected to the inside of the box 1, the outer wall of the positioning block 10 is slidably connected to the inside of the fixing hole 2, and a box cover 11 is fixedly connected to the upper surface of the positioning block 10. An exhaust hole 12 is provided inside the box cover 11. Specifically, the box 1 restricts the positioning block 10, which slides inside the fixing hole 2, thus restricting the sliding trajectory of the positioning block 10. The box cover 11 fixes the positioning block 10. Positioning blocks 10 are fixed on both sides of the lower surface of the box cover 11. The box cover 11 has vent holes 12 at opposite corners, from which the gas generated during heating is discharged.
[0019] Reference Figure 4A connecting rod 14 is fixedly connected to the lower surface of the positioning block 10, and a wedge-shaped slider 13 is slidably connected to the outer wall of the connecting rod 14. The outer wall of the wedge-shaped slider 13 is slidably connected to the inside of the fixing hole 2. Specifically, the positioning block 10 fixes the connecting rod 14, and the connecting rod 14 and the fixing hole 2 restrict the wedge slider 13 to prevent it from shifting during sliding.
[0020] Reference Figure 4 A wedge block 15 is fixedly connected to the lower surface of the connecting rod 14, and the outer wall of the wedge block 15 is slidably connected to the inside of the fixing hole 2; Specifically, the connecting rod 14 fixes the wedge block 15, and the fixing hole 2 restricts the wedge block 15.
[0021] Reference Figure 4 The outer wall of the wedge block 15 is slidably connected to the inclined block 16, and the outer wall of the inclined block 16 is slidably connected to the inside of the fixing hole 2. Specifically, the inclined block 16 restricts the wedge block 15, and fixes the wedge block 15 when the upper surface of the wedge block 15 is in contact with the lower surface of the inclined block 16.
[0022] Reference Figure 4 The outer wall of the inclined block 16 is attached to the limiting block 17, and the outer wall of the limiting block 17 is fixedly connected to the inside of the box 1. Specifically, box 1 fixes the limiting block 17, and the limiting block 17 restricts the inclined block 16 to prevent it from sliding out.
[0023] Reference Figure 4 A compression spring 18 is fixedly connected to the outer wall of the inclined block 16; Specifically, the inclined block 16 serves to fix the compression spring 18.
[0024] Reference Figure 4 The other end of the compression spring 18 is fixedly connected to a T-shaped block 19, and the outer wall of the T-shaped block 19 is fixedly connected to the inside of the box 1; Specifically, one end of the compression spring 18 is fixed to the outer wall of the inclined block 16, and the other end is fixed to the outer wall of the T-shaped block 19. The box 1 fixes the compression spring 18. When the positioning block 10 slides the wedge block 15 into the box 1 via the connecting rod 14, the inclined surface of the wedge block 15 presses the compression spring 18 along the inclined surface of the inclined block 16 towards the T-shaped block 19, causing the inclined block 16 to disengage from the limiting block 17 and slide in. After the upper surface of the wedge block 15 slides to the lower surface of the inclined block 16, the inclined block 16 re-fits the limiting block 17 through the elastic force of the compression spring 18. At this time, the inclined block 16 is inserted between the wedge slider 13 and the wedge block 15, fixing the positioning block 10 and achieving a stable lock between the box lid 11 and the box body, preventing the steam pressure from opening the box lid 11 during heating.
[0025] Working principle: When using this device, first place the heating pack inside the box 1. The inside of the box 1 has a protruding part to initially fix the heating pack before it bulges out. At the same time, this protruding part is the water level line for adding cold water. Turning the handle 5 causes the threaded column 4 to drive the inclined column 6 to slide downward inside the sliding hole 3. During the sliding process, the inclined surface of the inclined column 6 pushes the inclined column 7 to compress the spring 9, causing the fixing column 8 to slide out of the box 1. The sliding fixing column 8 fixes the heating pack, thereby achieving precise positioning and stable clamping of the heating pack, preventing displacement during heating, ensuring uniform contact with cold water, and improving heating stability. After the cold water is injected, align the groove of the box cover 11 with the position of the handle 5, and let the positioning block 10 slide into the inside of the box 1 along the fixing hole 2. When the positioning block 10 slides inside the fixing hole 2, the connecting rod 14 causes the wedge block 15 to push the inclined block along the inclined surface. 16. The inclined block 16 compresses the spring 18 and moves towards the T-block 19. When the upper surface of the wedge block 15 slides to the lower surface of the inclined block 16, the inclined block 16 re-fits with the limiting block 17 through the elasticity of the spring 18, and is locked between the wedge slider 13 and the wedge block 15, fixing the positioning block 10. When it is necessary to open, press down on the lid 11 to make the wedge slider 13 slide to the lower surface of the inclined block 16, and then pull up on the lid 11 to open the box 1. This achieves a stable lock between the lid 11 and the box body, preventing the steam pressure from opening the lid 11 during heating and improving the safety of use. This device can not only achieve a stable lock between the lid 11 and the box body, preventing the steam pressure from opening the lid 11 during heating and improving the safety of use; it can also achieve precise positioning and stable clamping of the heating pack, preventing displacement during heating, ensuring uniform contact with cold water, and improving the heating stability.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A heating pack box assembly structure with limiting buckles, comprising a box (1), characterized in that: The box (1) has a fixing hole (2) inside and a sliding hole (3) inside. The box (1) is threaded with a threaded post (4) inside. The top of the threaded post (4) is fixedly connected with a handle (5). The bottom of the threaded post (4) is rotatably connected with a first inclined post (6). The outer wall of the first inclined post (6) is slidably connected to the inside of the sliding hole (3). The lower surface of the first inclined post (6) is slidably connected with a second inclined post (7). The outer wall of the second inclined post (7) is fixedly connected with a fixing post (8). The outer wall of the fixing post (8) is slidably connected to the inside of the box (1). The outer wall of the fixing post (8) is slidably connected with a spring (9). The box (1) is slidably connected with a positioning component inside.
2. The heating pack box assembly structure with limiting buckle according to claim 1, characterized in that: The positioning component includes a positioning block (10), the outer wall of which is slidably connected to the inside of the box (1), the outer wall of which is slidably connected to the inside of the fixing hole (2), and a box cover (11) is fixedly connected to the upper surface of the positioning block (10), and an exhaust hole (12) is provided inside the box cover (11).
3. The heating pack box assembly structure with limiting buckle according to claim 2, characterized in that: The lower surface of the positioning block (10) is fixedly connected to a connecting rod (14), and the outer wall of the connecting rod (14) is slidably connected to a wedge-shaped slider (13), the outer wall of the wedge-shaped slider (13) being slidably connected inside the fixing hole (2).
4. The heating pack box assembly structure with limiting buckle according to claim 3, characterized in that: A wedge block (15) is fixedly connected to the lower surface of the connecting rod (14), and the outer wall of the wedge block (15) is slidably connected to the inside of the fixing hole (2).
5. The heating pack box assembly structure with limiting buckle according to claim 4, characterized in that: The outer wall of the wedge block (15) is slidably connected to the inclined block (16), and the outer wall of the inclined block (16) is slidably connected to the inside of the fixing hole (2).
6. The heating pack box assembly structure with limiting buckle according to claim 5, characterized in that: The outer wall of the inclined block (16) is attached to the limiting block (17), and the outer wall of the limiting block (17) is fixedly connected to the inside of the box (1).
7. The heating pack box assembly structure with limiting buckle according to claim 5, characterized in that: A compression spring (18) is fixedly connected to the outer wall of the inclined block (16).
8. The heating pack box assembly structure with limiting buckle according to claim 7, characterized in that: The other end of the compression spring (18) is fixedly connected to a T-shaped block (19), and the outer wall of the T-shaped block (19) is fixedly connected to the inside of the box (1).
