Base assembly with multi-layer support structure

Abstract

The utility model relates to a base assembly with multilayer support structure for supporting and heating pot, the base assembly includes: the upper cover is provided with first plug connector in the installation mouth inboard of upper cover, the outer edge of middle frame is provided with second plug connector, first plug connector and second plug connector cooperate and lock middle frame in installation mouth, middle frame support is fixed with middle frame through fixing piece, heat shield is installed in middle frame, and the plug connection along of surrounding heat shield is inserted in the gap between middle frame and middle frame support, and the position of heat shield is fixed. The utility model embodiment passes through the fixing strength of base assembly to be increased through multiple groups of structure cooperation, can avoid the difference caused by temperature change.

Description

Technical Field

[0001] This utility model relates to electrical accessories, specifically to a base assembly with a multi-layer support structure. Background Technology

[0002] The base assembly used for heating pots such as casseroles is equipped with a heat insulation cover. The heat insulation cover is generally fixed in one of the following ways: directly to the middle frame with screws; or, fixed by rotating the heat insulation cover using fasteners on the middle frame; or, fixed by twisting the heat insulation cover using angle brackets.

[0003] On the one hand, in working environments with large temperature variations, such as those affecting the base assembly, these fixing methods exhibit relatively low strength. This is because the fixing components of the base assembly are prone to loosening due to thermal expansion and contraction. Furthermore, at high temperatures, connection structures such as snap fasteners and lead-in corners are more susceptible to brittleness and fatigue, resulting in insufficient overall impact resistance of the base assembly and easy damage upon drop. In addition, in scenarios with frequent heating, the structure will undergo thermal deformation, and the difference in the expansion coefficients of various components will prevent the fixing structure from releasing stress, leading to breakage. On the other hand, these structures have high assembly costs. Fixing with screws requires additional screws and tightening steps, while snap fastener rotation requires extremely high alignment accuracy between components, and lead-in corner twisting relies on manual operation with a low tolerance for error, all of which require significant time and labor costs.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a base assembly with a multi-layer support structure.

[0006] The technical solution adopted in this embodiment of the utility model is as follows: A base assembly with a multi-layer support structure is used to support and heat a cookware. The base assembly includes: a top cover with a first connector disposed inside the mounting opening of the top cover; a middle frame with a second connector disposed along the outer edge of the middle frame; the first connector and the second connector cooperate to lock the middle frame into the mounting opening; a middle frame bracket fixed to the middle frame by a fastener; and a heat insulation cover installed inside the middle frame, with its insert edge surrounding the heat insulation cover inserted into the gap between the middle frame and the middle frame bracket to fix the position of the heat insulation cover.

[0007] A further technical solution is that the base assembly also includes a bottom cover; the top cover and the middle frame bracket are both fixed on the bottom cover.

[0008] A further technical solution is that the first connector is a hook structure arranged around the inner side of the mounting port; the second connector is a vertical edge arranged around the outer side of the middle frame, used to be inserted into the first connector.

[0009] A further technical solution is that the first connector is annular; or, the first connector is arc-shaped, with multiple segments arranged around the inner side of the mounting port.

[0010] A further technical solution is that multiple fixing posts are provided on the lower surface of the middle frame, and the fixing members pass through the fixing holes on the middle frame bracket and are fixed in the fixing posts.

[0011] A further technical solution is that the middle frame bracket includes an annular main bracket; a support member is provided on the first side of the main bracket, which abuts against the lower part of the first plug-in member and supports the upper cover; an mounting member is provided on the second side of the main bracket to fix the middle frame bracket to the bottom cover.

[0012] A further technical solution is that the support member is ring-shaped, or the support member is arc-shaped and has multiple segments, the positions of which correspond to the first plug-in member.

[0013] A further technical solution is that when the support member is multi-segmented arc-shaped, a reinforcing member is provided around the fixed column on the middle frame. When the middle frame is fixed to the middle frame bracket, the reinforcing member is supported between adjacent support members.

[0014] A further technical solution is that the mounting component includes a connecting section vertically fixed to the main support and a horizontal mounting section connected to the connecting section; the mounting section is fixed to the bottom cover, and the bottom of the heat insulation cover is supported on the mounting section.

[0015] A further technical solution is that the base assembly also includes a heating plate; the heating plate is installed above the heat insulation cover.

[0016] The beneficial effects of this utility model embodiment are as follows: This embodiment of the invention increases the fixing strength of the base assembly through the cooperation of multiple structural components. The upper cover and the middle frame are connected by interlocking connectors. The middle frame is fixed to the middle frame bracket, and both are fixed to the bottom cover, forming a multi-point support system. Combined with the design of the heat insulation cover inserting into the gap between the middle frame and the middle frame bracket, multiple interlocking structures are constructed. This ensures that the force is transmitted to the whole system rather than a single connection point during a drop, improving the overall impact resistance. This fixing method also provides a small amount of thermal expansion buffer space while maintaining stable fixation, reducing thermal deformation and preventing connection loosening and breakage caused by temperature changes. Furthermore, this embodiment of the invention is easier to install and reduces the accuracy requirements for component alignment. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the usage state in an embodiment of this utility model.

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of part A of the structure.

[0019] Figure 3 This is a schematic diagram of the upper cover in an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the middle frame in an embodiment of the present utility model.

[0021] Figure 5 This is a partial structural diagram of the base assembly in an embodiment of the present utility model.

[0022] Figure 6 This is a schematic diagram of the middle frame bracket and the top cover installed on the base in an embodiment of this utility model.

[0023] In the diagram: 1. Bottom cover; 2. Top cover; 201. Mounting port; 202. First connector; 3. Middle frame bracket; 301. Fixing hole; 302. Main bracket; 303. Support component; 304. Mounting component; 3041. Connecting section; 3042. Mounting section; 4. Middle frame; 401. Second connector; 402. Fixing post; 403. Reinforcing component; 5. Heat insulation cover; 501. Connecting edge; 6. Heating plate. Detailed Implementation

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0026] Figure 1This is a cross-sectional view of the usage state in an embodiment of this utility model. Figure 2 for Figure 1 An enlarged schematic diagram of part A of the structure. (See diagram below.) Figure 1 , Figure 2 As shown in the figure, this utility model embodiment discloses a base assembly with a multi-layer support structure for supporting and heating cookware, such as a clay pot, or other types of cookware that are heat-resistant and whose bottom can stably contact and conduct heat.

[0027] The base assembly includes a top cover 2, a middle frame bracket 3, a middle frame 4, and a heat insulation cover 5. The middle frame 4 is fixed to the middle frame bracket 3 by fasteners. The base assembly also includes a heating plate 6. The heating plate 6 is mounted above the heat insulation cover 5.

[0028] Figure 3 This is a schematic diagram of the upper cover in an embodiment of the present utility model. Figure 3 As shown, the upper cover 2 includes a mounting port 201. A first connector 202 is provided inside the mounting port 201. Figure 4 This is a schematic diagram of the middle frame in an embodiment of this utility model. (See diagram below.) Figure 4 As shown, a second connector 401 is provided on the outer edge of the middle frame 4. The first connector 202 and the second connector 401 can be plugged into each other to lock the middle frame 4 into the mounting port 201.

[0029] Figure 5 This is a partial structural diagram of the base assembly in an embodiment of the present utility model. Figure 2 , Figure 5 As shown, the heat insulation cover 5 is installed inside the middle frame 4, and the insertion edge 501 surrounding the heat insulation cover 5 is inserted into the gap between the middle frame 4 and the middle frame bracket 3 to fix the position of the heat insulation cover 5.

[0030] In this embodiment, the upper cover 2 and the middle frame 4 are connected by a first connector 202 and a second connector 401, and the middle frame 4 is fixed to the middle frame support 3, forming a mutually locked and robust connection structure. The insertion edge 501 of the heat insulation cover 5 is embedded in the gap between the middle frame 4 and the middle frame support 3, which can simultaneously constrain the heat insulation cover 5 radially and circumferentially, ensuring that it can maintain a stable relative position. Overall, the base assembly has multiple interlocking structures between the upper cover 2 and the middle frame 4, between the middle frame 4 and the middle frame support 3, and between the middle frame 4, the middle frame support 3 and the heat insulation cover 5, which restrain and constrain each other, making the base assembly more stable. When the base assembly is dropped, the force is transmitted to the entire structure, rather than acting directly on the weak connection points, so the base assembly has excellent stability in drop tests.

[0031] In actual installation, the middle frame 4 is first assembled onto the upper cover 2, so that the first connector 202 and the second connector 401 of the upper cover 2 interlock, and the upper cover 2 supports the middle frame 4. Then, the heat insulation cover 4 is placed on the middle frame 4, and then the middle frame bracket 3 is assembled onto the heat insulation cover 5. The middle frame 4 and the middle frame bracket 3 are interlocked by fasteners through the fixing posts 402 on the middle frame 4 and the fixing holes 301 on the middle frame bracket 3. At the same time, the middle frame 4, the middle frame bracket 3, the heat insulation cover 5 and the upper cover 2 are fixed together.

[0032] Furthermore, the base assembly also includes a bottom cover 1, a middle frame bracket 3, and an upper cover 2, all of which are connected to the bottom cover 1 via fasteners. The overall structure forms a system similar to a triangular support, further increasing the sturdiness of the entire base assembly.

[0033] Furthermore, the locking design between the top cover 2 and the middle frame 4 via the first connector 202 and the second connector 401 allows for a very small amount of sliding when heated. The insertion edge 501 of the heat insulation cover 5 is clamped between the middle frame 4 and the middle frame support 3. Under the constraint of the middle frame 4 and the middle frame support 3, a certain thermal expansion difference is allowed between the various structures, which can reduce the overall thermal deformation of the base assembly. As mentioned above, there is also an interlocking structure between the top cover 2, the middle frame 4, the middle frame support 3, and the heat insulation cover 5, which can prevent the connection of the base assembly from loosening due to continuous temperature changes after long-term use. Even if the surface temperature of the base assembly is relatively high during use, it is not easy to break due to thermal deformation.

[0034] Furthermore, in combination Figures 2-4 In this embodiment, the first connector 202 is a hook structure surrounding the inner side of the mounting opening 201, with the hook opening facing upwards. The second connector 401 is a vertical edge surrounding the outer side of the middle frame 4, which is inserted into the hook opening. The first connector 202 and the second connector 401 cooperate and lock together. It can be understood that the first connector 202 and the second connector 401 can also use other structures that can cooperate and lock together, such as a snap-fit ​​and slot structure, or a mortise and tenon-like structure that is mechanically locked by a convex and concave structure.

[0035] Furthermore, the first connector 202 can be entirely annular, arranged inside the mounting opening 201 of the entire upper cover 2. Alternatively, the first connector 202 can be arc-shaped, with multiple segments surrounding the inner side of the mounting opening 201. Figure 3As shown, in this embodiment, the first connector 202 is provided with multiple segments, which are evenly arranged on the inner side of the mounting port 201. The multi-segment arc design provides tolerance space through the gaps between the segments. Even if there is a local deviation in the size of the first connector 202, it can still be installed with the second connector 401. Moreover, the multi-segment arc design has gaps between adjacent segments, which can serve as a buffer space for thermal expansion and further avoid the segment difference caused by thermal deformation.

[0036] Figure 6 This is a schematic diagram showing the middle frame bracket and the top cover mounted on the base in an embodiment of this utility model. Figure 6 As shown, the middle frame bracket 3 includes an annular main bracket 302. A support member 303 is provided on the first side of the main bracket 302, and a mounting member 304 is provided on the second side of the main bracket 302. The middle frame bracket 3 is fixed to the bottom cover 1 by the mounting member 304.

[0037] Combination Figure 2 When the middle frame 4 is installed on the upper cover 2 and fixed to the middle frame bracket 3, the support member 303 abuts against the lower part of the first connector 202 and supports the upper cover 2, making the structure between the upper cover 2, the middle frame 4, and the middle frame bracket 3 more stable. Specifically, the support member 303 can be annular, surrounding the middle frame bracket 3, or the support member 303 can be arc-shaped, with multiple segments, the positions corresponding to the first connector 202. Figure 6 In the illustrated embodiment, the support member 303 is a multi-segment arc shape with uniformly arranged segments. Further, multiple fixing posts 402 are provided on the lower surface of the middle frame 4, and the fixing members pass through the fixing holes 301 on the middle frame bracket 3 and are fixed within the fixing posts 402. When the support member 303 is a multi-segment arc shape with uniformly arranged segments, further, reinforcing members 403 are provided around the fixing posts 402. When the middle frame 4 is fixed to the middle frame bracket 3, the reinforcing members 403 are stably supported in the intervals between adjacent support members 303, further stabilizing the structure between the middle frame 4 and the middle frame bracket 3.

[0038] See Figure 6As shown, the middle frame bracket 3 is fixed to the bottom cover 1 by the mounting member 304. Specifically, the mounting member 304 includes a connecting section 3041 vertically fixed to the main bracket 302, a horizontal mounting section 3042, and a transition section connecting the connecting section 3041 and the mounting section 3042. The mounting section 3042 is fixed to the bottom cover 1 by a fastener. When the insertion edge 501 of the heat insulation cover 5 is inserted between the middle frame 4 and the middle frame bracket 3, the bottom of the heat insulation cover 5 is supported on the mounting section 3042. In this embodiment, the middle frame bracket 3, the mounting member 304, and the support member 303 together form a Z-shaped support structure with stronger rigidity, which can more stably support and connect the middle frame 4 and the top cover 2, and also indirectly enhance the insertion stability between the middle frame 4 and the top cover 2. In addition, the mounting section 3042 provides additional longitudinal positioning for the heat insulation cover 5, which, together with the positioning of the insertion edge 501 of the heat insulation cover 5, improves the overall stability of the heat insulation cover 5.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A base assembly with a multi-layer support structure for supporting and heating cookware, characterized in that, The base assembly includes: The upper cover (2) has a first plug-in component (202) provided inside the mounting port (201) of the upper cover (2); The middle frame (4) has a second connector (401) on its outer edge; the first connector (202) and the second connector (401) cooperate to lock the middle frame (4) into the mounting port (201); The middle frame bracket (3) is fixed to the middle frame (4) by fasteners; The heat insulation cover (5) is installed inside the middle frame (4). The insertion edge (501) around the heat insulation cover (5) is inserted into the gap between the middle frame (4) and the middle frame bracket (3) to fix the position of the heat insulation cover (5).

2. The base assembly with a multi-layer support structure according to claim 1, characterized in that, The base assembly also includes a bottom cover (1); the top cover (2) and the middle frame bracket (3) are both fixed on the bottom cover (1).

3. The base assembly with a multi-layer support structure according to claim 1, characterized in that, The first connector (202) is a hook structure arranged around the inner side of the mounting port (201); the second connector (401) is a vertical edge arranged around the outer side of the middle frame (4) and is used to insert into the first connector.

4. The base assembly with a multi-layer support structure according to claim 2, characterized in that, The first connector (202) is annular; or, the first connector (202) is arc-shaped and has multiple segments arranged around the inner side of the mounting port (201).

5. The base assembly with a multi-layer support structure according to claim 1, characterized in that, Multiple fixing posts (402) are provided on the lower surface of the middle frame (4). The fixing member passes through the fixing hole (301) on the middle frame bracket (3) and is fixed in the fixing post (402).

6. The base assembly with a multi-layer support structure according to claim 1, characterized in that, The middle frame bracket (3) includes an annular main bracket (302); a support member (303) is provided on the first side of the main bracket (302), which abuts against the bottom of the first plug-in member (202) and supports the upper cover (2); an mounting member (304) is provided on the second side of the main bracket (302) to fix the middle frame bracket (3) to the bottom cover (1).

7. The base assembly with a multi-layer support structure according to claim 6, characterized in that, The support member (303) is ring-shaped, or the support member (303) is arc-shaped and has multiple segments, the positions of which correspond to the first plug-in member (202).

8. The base assembly with a multi-layer support structure according to claim 7, characterized in that, When the support member (303) is multi-segmented arc, a reinforcing member (403) is provided around the fixed column (402) on the middle frame (4). When the middle frame (4) is fixed to the middle frame bracket (3), the reinforcing member (403) is supported between adjacent support members (303).

9. The base assembly with a multi-layer support structure according to claim 6, characterized in that, The mounting component (304) includes a connecting section (3041) that is vertically fixed to the main support (302) and a horizontal mounting section (3042) that is connected to the connecting section (3041); the mounting section (3042) is fixed to the bottom cover (1), and the bottom of the heat insulation cover (5) is supported on the mounting section (3042).

10. The base assembly with a multi-layer support structure according to claim 1, characterized in that, The base assembly also includes a heating plate (6); the heating plate (6) is mounted above the heat insulation cover (5).

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