Radiation-proof plate fixing structure and electric cooker

Abstract

The utility model provides an anti-radiation plate fixing structure and an electric cooker, relates to the technical field of household appliances, and solves the technical problem that use is affected due to the fact that the fixing effect of an anti-radiation plate is not ideal in the prior art. The anti-radiation plate fixing structure and the electric cooker comprise a clamping block, a locking groove is formed in the clamping block, and an inserting block is arranged on an anti-radiation plate; the clamping blocks are arranged in the circumferential direction of the anti-radiation plate, the locking grooves are located in the rotating paths of the inserting blocks, and at least parts of the locking grooves are connected with the inserting blocks in an interference fit mode. According to the anti-radiation plate fixing structure and the electric cooker, the anti-radiation plate has a good fixing effect and is not prone to falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a fixing structure of a radiation protection plate and a rice cooker. Background Art

[0002] For an IH electromagnetic heating rice cooker to protect against electromagnetic radiation generated by an electromagnetic heating structure, a radiation protection plate is installed at the bottom or side thereof. If the radiation protection plate is loosely fixed, it is likely to resonate with the whole machine to generate noise, affecting the user experience of the product.

[0003] In the prior art, a fixing structure of a radiation protection plate is provided. This fixing structure forms an interference fit with the base structure through the deformation of the hole positions of the radiation protection plate during the assembly process. This kind of structure has high requirements for the dimensional accuracy of parts and poor impact resistance, and is prone to failure (the dimensional deviation cannot achieve interference or the deformation of the mating position after impact, resulting in loose fit).

[0004] In the prior art, a fixing structure of a radiation protection plate is also provided. The radiation protection plate and the base are fixed by screws. After a long time of use, the screws are likely to fall off, resulting in the dropping of the radiation protection plate. The fixing effect is not ideal and is likely to affect the use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fixing structure of a radiation protection plate and a rice cooker to solve the technical problem that the fixing effect of the radiation protection plate in the prior art is not ideal, resulting in affecting the use. The many technical effects that can be produced by the preferred technical solutions provided by the utility model are described in detail below.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The fixing structure of the radiation protection plate provided by the utility model includes a clamping block, a locking groove is arranged on the clamping block, and a plug-in block is arranged on the radiation protection plate;

[0008] The clamping block is arranged along the circumferential direction of the radiation protection plate, the locking groove is located on the rotation path of the plug-in block, and at least part of the locking groove is in interference fit connection with the plug-in block.

[0009] As an optional implementation manner, the size of the locking groove gradually increases or gradually decreases.

[0010] As an optional implementation manner, the clamping block includes an upper clamping block and a lower clamping block, and the upper clamping block and the lower clamping block are arranged in parallel;

[0011] A plurality of locking blocks are arranged at intervals on the upper clamping block, and the gap between the bottom surfaces of the plurality of locking blocks and the top surface of the lower clamping block forms the locking groove.

[0012] As an alternative embodiment, the locking groove includes a guiding extension section and an interference fit section. The size of the guiding extension section is greater than the thickness of the radiation shielding plate; the size of the interference fit section is less than the thickness of the radiation shielding plate.

[0013] As an alternative embodiment, a guiding extension surface and an interference fit surface are provided on the lower clamping block, and a transition inclined surface is provided between the guiding extension surface and the interference fit surface;

[0014] The guiding extension section is formed between the guiding extension surface and the locking block, and the interference fit section is formed between the interference fit surface and the locking block.

[0015] As an alternative embodiment, the cross-section of the guiding extension section is in a horn-shaped structure or a trapezoidal structure, and the small-diameter part of the guiding extension section is connected to the interference fit section.

[0016] As an alternative embodiment, a slope structure for increasing the opening slope of the locking groove is provided at the end of the locking groove.

[0017] As an alternative embodiment, an installation groove is further included. The clamping blocks are arranged in an annular array in the installation groove, the plugging blocks are arranged in an annular array on the radiation shielding plate, and a clamping groove is formed between two adjacent plugging blocks. The clamping groove corresponds to the clamping block, so that the radiation shielding plate is adapted to be installed in the installation groove.

[0018] As an alternative embodiment, a positioning structure is further included. The positioning structure includes a positioning post and a positioning hole. The positioning hole is provided on the radiation shielding plate, the positioning post is provided in the installation groove and is located on the rotation path of the positioning hole, and rotating the radiation shielding plate can position the positioning post in the positioning hole.

[0019] As an alternative embodiment, a guiding structure is further included. The guiding structure includes a guiding post and a guiding groove. The guiding post is provided on the radiation shielding plate, the guiding groove is provided in the installation groove, and the guiding post is matched with the guiding groove. Rotating the radiation shielding plate can make the guiding post move along the guiding groove.

[0020] As an alternative embodiment, there are three groups of corresponding clamping blocks and clamping grooves.

[0021] An electric rice cooker includes the radiation shielding plate fixing structure as described above.

[0022] The beneficial effects of the present utility model are as follows: The radiation protection board fixing structure and the rice cooker provided by the present utility model include a clamping block, on which a locking groove is provided. The clamping block is arranged along the circumferential direction of the radiation protection board. An insertion block is provided on the radiation protection board. When the radiation protection board rotates, the insertion block can be inserted into the locking groove and is connected with the locking groove in an interference fit manner, so as to fix the radiation protection board and the clamping block. Since the clamping block is arranged along the circumferential direction of the radiation protection board, after the insertion block on the radiation protection board is fixed in the locking groove, the radiation protection board only has the degree of freedom of rotation direction, and the locking groove can limit the degree of freedom of the up-and-down movement of the radiation protection board, thereby preventing the problem that the radiation protection board falls off due to vibration. In addition, since at least part of the locking groove is connected with the insertion block in an interference fit manner, the insertion block can be firmly fixed in the locking groove, ensuring that the radiation protection board has a good fixing effect and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural diagram of the radiation protection board fixing structure in Embodiment 1 of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the assembled radiation protection board in Embodiment 1 of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the installation groove in Embodiment 1 of the present utility model;

[0027] Figure 4 is a partial structural schematic diagram A in Embodiment 1 of the present utility model;

[0028] Figure 5 is a schematic structural diagram of the radiation protection board in Embodiment 1 of the present utility model;

[0029] Figure 6 is a schematic structural diagram of the radiation protection board in Embodiment 2 of the present utility model.

[0030] In the figure:

[0031] 10. Installation groove; 11. Clamping block; 12. Insertion block; 13. Clamping groove; 14. Radiation protection plate; 15. Locking groove; 16. Upper clamping block; 17. Lower clamping block; 18. Locking block; 19. Guide extension surface; 20. Transition inclined surface; 21. Interference fit surface; 22. Guide extension section; 23. Interference fit section; 24. Positioning post; 25. Positioning hole; 26. Gradient structure; 27. Guide post; 28. Guide groove. Detailed implementation manner

[0032] The following can refer to the attached drawings Figures 1 to 6 and the text content to understand the content of the present invention and the differences between the present invention and the prior art. The technical solutions (including the preferred technical solutions) of the present invention will be further described in detail below by way of the attached drawings and by listing some alternative embodiments of the present invention. It should be noted that: any technical feature and any technical solution in this embodiment are one or several of a variety of alternative technical features or alternative technical solutions. For the sake of concise description, all alternative technical features and alternative technical solutions of the present invention cannot be exhausted in this document, nor is it convenient to emphasize that each implementation manner of a technical feature is one of the alternative implementation manners. Therefore, those skilled in the art should know that: any technical means provided by the present invention can be replaced, or any two or more technical means or technical features provided by the present invention can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution within this embodiment do not limit the protection scope of the present invention. The protection scope of the present invention should include any alternative technical solution that those skilled in the art can think of without creative labor and any new technical solution obtained by combining any two or more technical means or technical features provided by the present invention by those skilled in the art.

[0033] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The present utility model provides a radiation shielding plate fixing structure and a rice cooker with a radiation shielding plate having a good fixing effect and not being easily detached.

[0036] The following will be combined with Figures 1 to 6 to elaborate on the technical solution provided by the present utility model in more detail.

[0037] The present utility model provides a radiation shielding plate fixing structure, including a clamping block 11, a locking groove 15 is provided on the clamping block 11, and a plug-in block 12 is provided on the radiation shielding plate 14;

[0038] The clamping block 11 is arranged along the circumferential direction of the radiation shielding plate 14, the locking groove 15 is located on the rotation path of the plug-in block 12, and at least part of the locking groove 15 is in interference fit connection with the plug-in block 12.

[0039] The radiation shielding plate fixing structure provided by the present utility model includes a clamping block 11, a locking groove 15 is provided on the clamping block 11, the clamping block 11 is arranged along the circumferential direction of the radiation shielding plate 14, a plug-in block 12 is provided on the radiation shielding plate 14, and when the radiation shielding plate 14 rotates, the plug-in block 12 can be inserted into the locking groove 15 and is in interference fit connection with the locking groove 15, so as to fix the radiation shielding plate 14 and the clamping block 11. Since the clamping block 11 is arranged along the circumferential direction of the radiation shielding plate 14, after the plug-in block 12 on the radiation shielding plate 14 is fixed in the locking groove 15, the radiation shielding plate 14 only has the degree of freedom of rotation direction, and the locking groove 15 can limit the degree of freedom of the up-and-down movement of the radiation shielding plate 14, thereby preventing the problem that the radiation shielding plate 14 falls off due to vibration; in addition, since at least part of the locking groove 15 is in interference fit connection with the plug-in block 12, the plug-in block 12 can be firmly fixed in the locking groove 15, ensuring that the radiation shielding plate 14 has a good fixing effect and is not easily detached.

[0040] It can be understood that at least part of the locking groove 15 being in interference fit connection with the plug-in block 12 means that the locking groove 15 can be entirely in interference fit connection with the plug-in block 12, or part of the locking groove 15 is in interference fit connection with the plug-in block 12, and part can be understood as half, one-third, one-fourth, etc.

[0041] Preferably, the length of the interference fit connection is at least ≥ 1 mm, so as to ensure sufficient interference fit amount and guarantee the fixing effect.

[0042] It should be noted that the clamping block 11 is arranged along the circumferential direction of the radiation shielding plate 14, which means that when the radiation shielding plate 14 rotates, the locking groove 15 on the clamping block 11 is located on the rotation path of the plug-in block 12, so that the plug-in block 12 can be clamped into the locking groove 15.

[0043] In some embodiments of the present invention, the size of the locking groove 15 gradually increases or gradually decreases.

[0044] In some of the above embodiments of the present invention, the locking groove 15 has a gradient structure, which can ensure that the locking groove 15 can adapt to radiation shielding plates 14 of different sizes, achieve interference fit connections with radiation shielding plates 14 of different thicknesses respectively, have a large tolerance for the size of the radiation shielding plate 14, and thus effectively ensure that the plug-in blocks 12 of different radiation shielding plates 14 can be firmly fixed in the locking groove 15, ensuring that the radiation shielding plate 14 has a good fixing effect and is not easily detached.

[0045] In some embodiments of the present invention, the clamping block 11 includes an upper clamping block 16 and a lower clamping block 17, and the upper clamping block 16 and the lower clamping block 17 are arranged in parallel;

[0046] A number of locking blocks 18 are arranged at intervals on the upper clamping block 16, and the locking groove 15 is formed between the bottom surfaces of the a number of locking blocks 18 and the top surface of the lower clamping block 17.

[0047] In some of the above embodiments of the present invention, the clamping block 11 includes an upper clamping block 16 and a lower clamping block 17. A number of locking blocks 18 are arranged at intervals on the upper clamping block 16, and the locking groove 15 is formed between the bottom surfaces of the a number of locking blocks 18 and the top surface of the lower clamping block 17. The locking groove 15 is formed by a number of locking blocks 18 arranged at intervals and the lower clamping block 17, which can facilitate the insertion of the plug-in block 12 into the locking groove 15 and is beneficial to the interference fit connection effect between the locking groove 15 and the plug-in block 12.

[0048] It can be understood that when the locking groove 15 gradually increases or gradually decreases, the plane connected to the bottom surface of the locking block 18 and / or the top surface of the lower clamping block 17 is arranged in an inclined plane structure, so as to present a trend of gradual increase or gradual decrease in the size of the locking groove 15, so as to adapt to the fixation of different radiation shielding plates 14.

[0049] Specifically, the locking groove 15 has a trapezoidal structure or a trumpet-shaped structure, and the size of the locking groove 15 gradually changes.

[0050] In some embodiments of the present utility model, the locking groove 15 includes a guiding extension section 22 and an interference fit section 23. The size of the guiding extension section 22 is greater than the thickness of the radiation shielding plate 14; the size of the interference fit section 23 is smaller than the thickness of the radiation shielding plate 14.

[0051] In some of the above embodiments of the present utility model, the locking groove 15 is composed of a guiding extension section 22 and an interference fit section 23. The size of the guiding extension section 22 is greater than the thickness of the radiation shielding plate 14, facilitating the rotation of the radiation shielding plate 14 into the locking groove 15. The size of the interference fit section 23 is smaller than the thickness of the radiation shielding plate 14, ensuring an interference fit between the insertion block 12 of the radiation shielding plate 14 and the interference fit portion.

[0052] In some embodiments of the present utility model, a guiding extension surface 19 and an interference fit surface 21 are provided on the lower clamping block 17, and a transition inclined surface 20 is provided between the guiding extension surface 19 and the interference fit surface 21;

[0053] The guiding extension section 22 is formed between the guiding extension surface 19 and the locking block 18, and the interference fit section 23 is formed between the interference fit surface 21 and the locking block 18.

[0054] In some of the above embodiments of the present utility model, a guiding extension surface 19, a transition inclined surface 20, and an interference fit surface 21 are provided on the lower clamping block 17. The transition inclined surface 20 is connected between the guiding extension surface 19 and the interference fit surface 21. The transition inclined surface 20 is used to guide the insertion block 12 from the guiding extension surface 19 to the interference fit surface 21, so that the insertion block 12 is in interference fit connection between the interference fit surface 21 and the locking block 18.

[0055] It can be understood that the transition inclined surface 20 can be a planar structure or an arc-shaped surface structure to achieve the purpose of connecting the guiding extension surface 19 and the interference fit surface 21.

[0056] In some embodiments of the present utility model, the cross-section of the guiding extension section 22 is in a trumpet-shaped structure or a trapezoidal structure, and the small-diameter part of the guiding extension section 22 is connected to the interference fit section 23.

[0057] In some of the above embodiments of the present utility model, the cross-section of the guiding extension section 22 is in a trumpet-shaped or trapezoidal structure, the size of the guiding extension section 22 gradually decreases, and the small-diameter part of the guiding extension section 22 is connected to the interference fit section 23, thus guiding the insertion block 12 from the guiding extension section 22 to the interference fit section 23, so that the insertion block 12 is in interference fit connection on the interference fit section 23.

[0058] In some embodiments of the present utility model, a slope structure 26 for increasing the opening slope of the locking groove 15 is provided at the end of the locking groove 15.

[0059] In some of the above embodiments of the present utility model, by providing a slope structure 26 at the end of the locking groove 15, the slope structure 26 increases the opening size of the locking groove 15, thereby facilitating the insertion of the plug block 12 into the locking groove 15 to achieve the rapid assembly of the radiation protection plate 14.

[0060] It can be understood that the slope structure 26 can be an inclined surface structure, or an arc surface structure, a structure combining an inclined surface and an arc, and other special-shaped structures, etc.

[0061] In some embodiments of the present utility model, it further includes a mounting groove 10. The clamping blocks 11 are arranged in an annular array in the mounting groove 10. The plug blocks 12 are arranged in an annular array on the radiation protection plate 14. A clamping groove 13 is formed between two adjacent plug blocks 12. The clamping groove 13 corresponds to the clamping block 11, so that the radiation protection plate 14 is adapted to be installed in the mounting groove 10.

[0062] In some of the above embodiments of the present utility model, the clamping blocks 11 are arranged in an annular array in the mounting groove 10, the plug blocks 12 are arranged in an annular array on the radiation protection plate 14. A clamping groove 13 is formed between two adjacent plug blocks 12. The clamping groove 13 corresponds to the clamping block 11. A locking groove 15 is provided on the clamping block 11. By rotating the radiation protection plate 14, the plug block 12 can be inserted into the locking groove 15 and is connected with the locking groove 15 in an interference fit manner, thereby preventing the problem that the radiation protection plate 14 falls off due to vibration, ensuring that the radiation protection plate 14 has a good fixing effect and is not easy to fall off.

[0063] In some embodiments of the present utility model, it further includes a positioning structure. The positioning structure includes a positioning post 24 and a positioning hole 25. The positioning hole 25 is provided on the radiation protection plate 14. The positioning post 24 is provided in the mounting groove 10 and is located on the rotation path of the positioning hole 25. By rotating the radiation protection plate 14, the positioning post 24 can be positioned in the positioning hole 25.

[0064] In some of the above embodiments of the present utility model, by providing a positioning post 24 in the mounting groove 10 and a positioning hole 25 on the radiation protection plate 14, the positioning post 24 and the positioning block cooperate with each other, and the positioning post 24 is located on the rotation path of the positioning hole 25. When rotating the radiation protection plate 14 to make the plug block 12 interfere-fit with the locking groove 15, the positioning post 24 is positioned in the positioning hole 25, thereby being able to limit the positions of the radiation protection plate 14 and the clamping block 11, limiting the circumferential rotation freedom of the radiation protection plate 14, completely avoiding the falling off of the radiation protection plate 14, and effectively ensuring the fixing effect of the radiation protection plate 14.

[0065] It should be noted that the radiation protection plate 14 is usually a thin sheet structure, such as an aluminum sheet about 0.5 mm thick, which is relatively easy to deform. The height of the positioning post 24 protrudes from the height of the locking groove 15 by about 0.5 mm. When the radiation protection plate 14 rotates, the radiation protection plate 14 will be slightly deformed at the contact position of the positioning post 24 until the positioning post 24 cooperates with the positioning block.

[0066] In some embodiments of the present invention, a guiding structure is further included. The guiding structure includes a guiding post 27 and a guiding groove 28. The guiding post 27 is arranged on the radiation protection plate 14, and the guiding groove 28 is arranged in the installation groove 10. The guiding post 27 cooperates with the guiding groove 28, and rotating the radiation protection plate 14 can make the guiding post 27 move along the guiding groove 28.

[0067] In some of the above embodiments of the present invention, through the arrangement of the guiding post 27 and the guiding groove 28, it can be clearly known whether the radiation protection plate 14 rotates in place, avoiding the problem of assembly failure caused by employees due to improper assembly.

[0068] In some embodiments of the present invention, three groups of the clamping blocks 11 and the clamping grooves 13 are correspondingly arranged.

[0069] The present invention also provides a rice cooker, including the radiation protection plate fixing structure as described above.

[0070] Embodiment 1:

[0071] The radiation protection plate fixing structure provided by the present invention includes an installation groove 10, wherein:

[0072] Three clamping blocks 11 are annularly and arrayedly arranged in the installation groove 10, and three inserting blocks 12 are annularly and arrayedly arranged on the radiation protection plate 14. A clamping groove 13 is formed between two adjacent inserting blocks 12. Three clamping grooves 13 are formed among the three inserting blocks 12. The three clamping grooves 13 correspond to and cooperate with the three clamping blocks 11, so that the radiation protection plate 14 is suitable for being installed in the installation groove 10.

[0073] A locking groove 15 is arranged on the clamping block 11. The clamping block 11 is arranged along the circumferential direction of the radiation protection plate 14. The locking groove 15 is located on the rotation path of the inserting block 12. Rotating the radiation protection plate 14 can make the inserting block 12 snap into the locking groove 15 and be connected with the locking groove 15 in an interference fit manner.

[0074] Further, the clamping block 11 includes an upper clamping block 16 and a lower clamping block 17, and the upper clamping block 16 and the lower clamping block 17 are arranged in parallel;

[0075] A plurality of locking blocks 18 are arranged at intervals on the upper clamping block 16, and a locking groove 15 is formed between the bottom surfaces of the plurality of locking blocks 18 and the top surface of the lower clamping block 17.

[0076] A guiding extension surface 19 and an interference fit surface 21 are arranged on the lower clamping block 17, and a transition inclined surface 20 is arranged between the guiding extension surface 19 and the interference fit surface 21;

[0077] A guiding extension section 22 is formed between the guiding extension surface 19 and the locking block 18, and the size of the guiding extension section 22 is larger than the thickness of the radiation shielding plate 14; an interference fit section 23 is formed between the interference fit surface 21 and the locking block 18, and the size of the interference fit section 23 is smaller than the thickness of the radiation shielding plate 14.

[0078] Further, a positioning post 24 and a positioning hole 25 are further included. The positioning hole 25 is arranged on the radiation shielding plate 14, the positioning post 24 is arranged in the mounting groove 10 and is located on the rotation path of the positioning hole 25, and rotating the radiation shielding plate 14 can position the positioning post 24 in the positioning hole 25.

[0079] Further, a slope structure 26 is further arranged at the end of the lower clamping block 17, and the slope structure 26 is a slope of an arc structure.

[0080] The rice cooker provided by the utility model includes the radiation shielding plate fixing structure as described above.

[0081] Embodiment 2:

[0082] The difference between this Embodiment 2 and Embodiment 1 is that: a guiding post 27 and a guiding groove 28 are further included. The guiding post 27 is arranged on the radiation shielding plate 14, the guiding groove 28 is arranged in the mounting groove 10, the guiding post 27 is matched with the guiding groove 28, and rotating the radiation shielding plate 14 can make the guiding post 27 move along the guiding groove 28.

[0083] In the description of this specification, the description with reference to terms such as "example", "embodiment" or "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] Of course, the present invention is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A radiation protection plate fixing structure, characterized in that: It comprises a card connection block, the card connection block is provided with a locking groove, and the radiation protection plate is provided with a plug-in block; The clamping block is arranged along the circumferential direction of the radiation protection plate, the locking groove is located on the rotation path of the plug-in block, and at least a part of the locking groove is connected with the plug-in block by interference fit.

2. The radiation protection plate fixing structure according to claim 1, characterized in that: The size of the locking groove gradually increases or decreases.

3. The radiation protection plate fixing structure according to claim 1, characterized in that: The clamping block comprises an upper clamping block and a lower clamping block, and the upper clamping block is arranged in parallel with the lower clamping block; A plurality of locking blocks are arranged at intervals on the upper clamping block, and the gaps between the bottom surfaces of the plurality of locking blocks and the top surface of the lower clamping block constitute the locking groove.

4. The radiation protection plate fixing structure according to claim 3, characterized in that: The lower clamping block is provided with a guide extension surface and an interference fit surface, and a transition slope is provided between the guide extension surface and the interference fit surface; A guide extension section is formed between the guide extension surface and the locking block, and the size of the guide extension section is greater than the thickness of the anti-radiation plate; an interference fit section is formed between the interference fit surface and the locking block, and the size of the interference fit section is smaller than the thickness of the anti-radiation plate.

5. The radiation protection plate fixing structure according to claim 4, characterized in that: The cross section of the guide extension section is a trumpet-shaped structure or a trapezoidal structure, and the small-diameter portion of the guide extension section is connected to the interference fit section.

6. The radiation protection plate fixing structure according to any one of claims 1 to 5, characterized in that: The end of the locking groove is provided with a slope structure for increasing the opening of the locking groove.

7. The radiation protection plate fixing structure according to any one of claims 1 to 5, characterized in that: It also includes an installation groove, the annular array of card blocks is arranged in the installation groove, the annular array of plug-in blocks is arranged on the radiation protection plate, a card slot is formed between two adjacent plug-in blocks, the card slot corresponds to the card block, so that the radiation protection plate is suitable for installation in the installation groove.

8. The radiation protection plate fixing structure according to claim 7, characterized in that: It also includes a positioning structure, which includes a positioning column and a positioning hole. The positioning hole is arranged on the anti-radiation plate. The positioning column is arranged in the installation groove and is located on the rotation path of the positioning hole. Rotating the anti-radiation plate can position the positioning column in the positioning hole.

9. The fixing structure of the radiation protection plate according to claim 7, characterized in that: It also includes a guide structure, which includes a guide column and a guide groove. The guide column is arranged on the radiation protection plate, and the guide groove is arranged in the installation groove. The guide column cooperates with the guide groove. Rotating the radiation protection plate can make the guide column move along the guide groove.

10. An electric rice cooker, characterized in that: It comprises a radiation protection plate fixing structure as described in any one of claims 1-9.

Images