Fixed mounting and locking structure for bottom plate of microwave oven

Abstract

The utility model relates to a microwave oven bottom plate fixing, installing and locking structure which comprises two or three guiding and positioning matching parts arranged at the matching position between a microwave oven bottom plate and a furnace pipe assembly, and the position angles of the guiding and positioning matching parts are different. The microwave oven bottom plate and the furnace pipe assembly are assembled in a guiding and positioning mode through the guiding and positioning matching parts with different position angles, the microwave oven bottom plate and the furnace pipe assembly are firmly and sufficiently fixed, installation is convenient, the assembling efficiency is high, after the microwave oven bottom plate and the furnace pipe assembly are preassembled and fixed, manual correction and hole alignment do not need to be conducted again, and locking screws are directly operated. The structure is suitable for locking the bottom plate screws through manual operation and automatically locking the bottom plate screws through a machine. And the structural mode of automatically producing microwave oven locking screws by a machine at present is met.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave oven bottom plate assembly, in particular to a microwave oven bottom plate fixing installation locking structure. Background Art

[0002] At present, there are two main types of locking structures for fixing and installing the bottom plate of a microwave oven: one is to manually control the bottom plate to align with the screw hole of the furnace and then lock the screw. No positioning structure is set on the bottom plate of this microwave oven, such as a new type of microwave oven bottom plate disclosed in Chinese Patent No. ZL202121684436.9.

[0003] Secondly, the positioning structure is partial but the positioning is insufficient. For example, if the number of positioning structures is small, after the microwave oven base plate and the furnace core assembly are pre-installed, it is necessary to manually correct the base plate and align it with the screw holes of the furnace core assembly before tightening the screws. This is inefficient and cannot be used for machine automated locking.

[0004] Therefore, further improvement is needed. Utility Model Content

[0005] The utility model aims to provide a locking structure for fixing and installing a bottom plate of a microwave oven. The bottom plate of the microwave oven and a furnace component are guided, positioned and assembled through guiding and positioning matching parts at different positions and angles. The positioning structure is sufficient. After the bottom plate of the microwave oven and the furnace component are pre-assembled, there is no need to manually correct the bottom plate and align the screw holes of the furnace component, thereby improving the assembly efficiency. The bottom plate of the microwave oven can also be locked on the furnace component in cooperation with machine automation, thereby reducing manual operations and improving production efficiency.

[0006] The purpose of the utility model is achieved in this way:

[0007] A microwave oven bottom plate fixing and locking structure includes a guide positioning fitting part arranged at the fitting position between the microwave oven bottom plate and the furnace chamber assembly, two or three guide positioning fitting parts are provided, and the position angles of each guide positioning fitting part are different; the microwave oven bottom plate and the furnace chamber assembly are guided and positioned by the guide positioning fitting parts at different position angles, the microwave oven bottom plate and the furnace chamber assembly are firmly and fully fixed, easy to install, and highly efficient to assemble, and after the microwave oven bottom plate and the furnace chamber assembly are pre-installed and fixed, there is no need to manually calibrate the holes again, and the locking screws can be directly operated. The structure is suitable for manually operating and locking the bottom plate screws and automatically locking the bottom plate screws by machines. The structure meets the current structure of the locking screws for microwave ovens produced by automated machines.

[0008] When there are two guiding and positioning matching parts, a two-point-in-line guiding and positioning assembly is formed between the microwave oven bottom plate and the furnace chamber assembly through the two guiding and positioning matching parts;

[0009] When the number of the guiding and positioning matching parts is three, a three-point-to-plane guiding and positioning assembly is formed between the microwave oven bottom plate and the furnace chamber assembly through the three guiding and positioning matching parts.

[0010] Preferably, a positioning guide assembly fixing method in which three guiding positioning matching parts are formed into a three-point plane is adopted. The microwave oven bottom plate and the furnace tube assembly are firmly and fully fixed, the installation is convenient, and the assembly efficiency is effectively improved. After the microwave oven bottom plate and the furnace tube assembly are fixed, there is no need to manually calibrate the holes again. The locking screws can be directly operated to lock the microwave oven bottom plate on the furnace tube assembly.

[0011] The guide positioning matching part comprises a guide fixing buckle arranged on the bottom plate of the microwave oven and a positioning hole arranged on the furnace tube assembly; when the bottom plate of the microwave oven and the furnace tube assembly are assembled, the guide fixing buckle is inserted into the positioning hole for guidance, and the guide fixing buckle is limited left and right and / or front and back on the inner peripheral side of the positioning hole. After the bottom plate of the microwave oven and the furnace tube assembly are guided and positioned by the guide positioning matching parts at different positions and angles, the positioning hole limits the guide fixing buckle to move left and right and front and back on the positioning hole, so as to prevent the bottom plate of the microwave oven from moving left and right and front and back on the furnace tube assembly after assembly, thereby facilitating manual or machine locking of screws to fix the bottom plate of the microwave oven on the furnace tube assembly.

[0012] A process notch is provided on the inner bottom wall of the microwave oven bottom plate for bending into a guide fixing buckle, so that the guide fixing buckle protrudes vertically upward and is set on the inner bottom wall of the microwave oven bottom plate. The process notch facilitates bending on the inner bottom wall of the microwave oven bottom plate to form the guide fixing buckle. The processed guide fixing buckle does not rebound and deform, ensuring the verticality of the guide fixing buckle in the upper and lower directions of the inner bottom wall of the microwave oven bottom plate.

[0013] The guide fixing buckle is provided with a guide bevel for guiding the insertion into the positioning hole. The left and right sides of the guide fixing buckle are designed to form chamfered guide bevels, which are convenient for guiding when installing the microwave oven bottom plate and the furnace tube assembly. The guide fixing buckle is inserted into the positioning hole through the guide bevel, which facilitates the installation and matching between the microwave oven bottom plate and the furnace tube assembly.

[0014] The furnace assembly is provided with a bending edge for assembling the microwave oven bottom plate, and the positioning hole is arranged on the bending edge. When the microwave oven bottom plate and the furnace assembly are assembled, the microwave oven bottom plate is relatively abutted against the bending edge of the furnace assembly.

[0015] A first guide fixing buckle, a second guide fixing buckle and a third guide fixing buckle are arranged on the bottom plate of the microwave oven, and a first positioning hole, a second positioning hole and a third positioning hole are arranged on the furnace chamber assembly; the three guide fixing buckles and the three positioning holes are arranged in a one-to-one correspondence, and the three guide fixing buckles and the three positioning holes are arranged in a three-point plane at the matching position between the bottom plate of the microwave oven and the furnace chamber assembly, so as to realize a three-point plane guiding and positioning assembly between the bottom plate of the microwave oven and the furnace chamber assembly.

[0016] A locking fitting portion for inserting and fixing a fastener is also provided at the fitting position between the microwave oven bottom plate and the furnace chamber assembly, so as to achieve a fixed connection between the microwave oven bottom plate and the furnace chamber assembly.

[0017] The locking fitting part includes a locking hole arranged on the bottom plate of the microwave oven and an assembly hole arranged on the furnace component. When the bottom plate of the microwave oven is positioned and assembled on the furnace component, the locking hole of the bottom plate of the microwave oven and the assembly hole of the furnace component are arranged correspondingly and are used to insert fasteners.

[0018] The microwave oven bottom plate is provided with flanges for increasing the strength of the microwave oven bottom plate and for assembling the microwave oven side plates.

[0019] The beneficial effects of the utility model are as follows:

[0020] The microwave oven bottom plate and the furnace assembly are guided and positioned for assembly through guiding and positioning matching parts at different positions and angles. The positioning structure is sufficient. After the microwave oven bottom plate and the furnace assembly are pre-assembled, there is no need to manually correct the bottom plate to align with the screw holes of the furnace assembly, thereby improving assembly efficiency. The microwave oven bottom plate can also be locked on the furnace assembly in conjunction with machine automation, thereby reducing manual operations and improving production efficiency.

[0021] After the microwave oven bottom plate and the furnace chamber assembly are guided and positioned for assembly through guiding and positioning matching parts at different positions and angles, the microwave oven bottom plate is positioned on the furnace chamber assembly front to back and left to right to prevent the assembled microwave oven bottom plate from moving left to right and front to back on the furnace chamber assembly. After the microwave oven bottom plate and the furnace chamber assembly are pre-installed and fixed, there is no need to manually calibrate the holes again, and the locking screws can be directly operated, thereby facilitating manual or machine locking of the screws to fix the microwave oven bottom plate on the furnace chamber assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a three-dimensional structural schematic diagram of the assembly of the bottom plate and the furnace component of the microwave oven according to an embodiment of the present invention.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of another orientation of the assembly of the bottom plate and the furnace chamber assembly of a microwave oven according to an embodiment of the utility model.

[0024] Figure 3 The utility model is a three-dimensional structural schematic diagram of the assembly and decomposition of the bottom plate and the furnace component of the microwave oven according to one embodiment of the present invention.

[0025] Figure 4 The utility model is a three-dimensional structural schematic diagram of a microwave oven bottom plate according to an embodiment of the present invention.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of a furnace chamber assembly according to an embodiment of the utility model.

[0027] Figure 6It is a three-dimensional structural schematic diagram of the bottom plate and furnace component of a microwave oven in another embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the bottom plate of a microwave oven in another aspect of an embodiment of the present utility model.

[0029] Figure 8 for Figure 7 Enlarged view of point I in the middle.

[0030] Fig. 9 The utility model is a three-dimensional cross-sectional structural diagram of the assembly of the bottom plate and the furnace component of the microwave oven according to an embodiment of the present invention.

[0031] Fig.10 for Fig. 9 Enlarged view of point II in the middle. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] See also Figure 1-Figure 10 A microwave oven bottom plate fixing installation locking structure includes a guide positioning matching portion A arranged at the matching position between the microwave oven bottom plate 2 and the furnace chamber assembly 3, two or three guide positioning matching portions A are provided, and the position angle of each guide positioning matching portion A is different; the microwave oven bottom plate 2 and the furnace chamber assembly 3 are guided and positioned by the guide positioning matching portions A at different position angles.

[0034] When there are two guiding and positioning matching parts A, a two-point-in-a-line guiding and positioning assembly is formed between the microwave oven bottom plate 2 and the furnace component 3 through the two guiding and positioning matching parts A;

[0035] When there are three guiding and positioning matching parts, a three-point-to-plane guiding and positioning assembly is formed between the microwave oven bottom plate 2 and the furnace chamber assembly 3 through the three guiding and positioning matching parts A.

[0036] The guide and positioning matching part A includes a guide fixing buckle arranged on the microwave oven bottom plate 2, and a positioning hole arranged on the furnace chamber assembly 3; when the microwave oven bottom plate 2 and the furnace chamber assembly 3 are assembled, the guide fixing buckle is guided and inserted into the positioning hole, and the guide fixing buckle is limited left and right and / or front and back on the inner peripheral side of the positioning hole.

[0037] A process notch 201 a for bending and processing into a guide fixing buckle is provided on the inner bottom wall of the microwave oven bottom plate 2, so that the guide fixing buckle protrudes vertically upward and is set on the inner bottom wall of the microwave oven bottom plate 2.

[0038] A guiding inclined surface 201b is provided on the guide fixing buckle for guiding the insertion into the positioning hole.

[0039] The furnace component 3 is provided with a bending edge 308 for assembling the microwave oven bottom plate 2 , and the positioning hole is arranged on the bending edge 308 . When the microwave oven bottom plate 2 and the furnace component 3 are assembled, the microwave oven bottom plate 2 is relatively abutted against the bending edge 308 of the furnace component 3 .

[0040] A first guide fixing buckle 201, a second guide fixing buckle 202 and a third guide fixing buckle 203 are provided on the microwave oven bottom plate 2, and a first positioning hole 301, a second positioning hole 302 and a third positioning hole 303 are provided on the furnace chamber assembly 3; the three guide fixing buckles and the three positioning holes are arranged in a one-to-one correspondence, and the three guide fixing buckles and the three positioning holes are arranged in a three-point plane at the matching position between the microwave oven bottom plate 2 and the furnace chamber assembly 3, so as to realize a three-point plane guiding and positioning assembly between the microwave oven bottom plate 2 and the furnace chamber assembly 3.

[0041] In this embodiment, the first positioning hole 301 cooperates with the first guide fixing buckle 201 , the second guide fixing buckle 202 cooperates with the second positioning hole 302 , and the third positioning hole 303 cooperates with the third guide fixing buckle 203 .

[0042] In this embodiment, the first guide fixing buckle 201 and the second guide fixing buckle 202 are respectively arranged on one side of the microwave oven bottom plate 2, and the third guide fixing buckle 203 is arranged on the other side of the microwave oven bottom plate 2. The first guide fixing buckle 201 and the second guide fixing buckle 202 are arranged at intervals from left to right, and the third guide fixing buckle 203 is arranged opposite to the first guide fixing buckle 201 and the second guide fixing buckle 202, and the third guide fixing buckle 203 is arranged in the interval position direction between the first guide fixing buckle 201 and the second guide fixing buckle 202, and the third guide fixing buckle 203 and the first guide fixing buckle 201 and the second guide fixing buckle 202 are arranged in opposite staggered arrangement, and the connecting line between the first guide fixing buckle 201, the second guide fixing buckle 202 and the third guide fixing buckle 203 forms a triangle, and each guide fixing buckle between the microwave oven bottom plate 2 and the furnace component 3 is arranged one-to-one with each positioning hole.

[0043] A locking fitting portion B for inserting and fixing the fastener 1 is also provided at the fitting portion between the microwave oven bottom plate 2 and the furnace chamber assembly 3, so that the microwave oven bottom plate 2 and the furnace chamber assembly 3 are fixedly connected.

[0044] The locking fitting portion B includes a locking hole arranged on the microwave oven bottom plate 2 and an assembly hole arranged on the furnace chamber assembly 3. When the microwave oven bottom plate 2 is positioned and assembled on the furnace chamber assembly 3, the locking hole of the microwave oven bottom plate 2 and the assembly hole of the furnace chamber assembly 3 are arranged correspondingly and are used to insert fasteners.

[0045] In this embodiment, the microwave oven bottom plate 2 is provided with a left screw through hole 204, a middle screw through hole 205, a right screw through hole 206, and a rear screw through hole 207, and the furnace chamber assembly 3 is provided with a left screw hole 304, a middle screw hole 305, a right screw hole 306, and a rear screw hole 307. The left screw through hole 204 matches with the left screw hole 304, the middle screw through hole 205 matches with the middle screw hole 305, the right screw through hole 206 matches with the right screw hole 306, and the rear screw through hole 207 matches with the rear screw hole 307.

[0046] In this embodiment, the left screw through hole 204, the middle screw through hole 205, and the right screw through hole 206 are respectively arranged in a linear or non-linear array on one side of the microwave oven bottom plate 2, and the rear screw through hole 207 is arranged on the other side of the microwave oven bottom plate 2. Each screw hole of the furnace liner assembly 3 is arranged in a one-to-one correspondence with the screw through hole of the microwave oven bottom plate 2.

[0047] The microwave oven bottom plate 2 is provided with a flange 208 for increasing the strength of the microwave oven bottom plate 2 and for assembling the microwave oven side plate.

[0048] In this embodiment, the three outer edges of the microwave oven bottom plate 2 are bent upward to form flanges 208. The flanges 208 are provided with screw holes for fixing and assembling the microwave oven side plates.

[0049] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A microwave oven bottom plate fixing and locking structure, characterized in that: The invention comprises a guide positioning matching part (A) arranged at the matching position between the bottom plate (2) of the microwave oven and the furnace component (3), wherein two or three guide positioning matching parts (A) are provided, and each guide positioning matching part (A) is arranged at a different position angle; the bottom plate (2) of the microwave oven and the furnace component (3) are guided and positioned for assembly via the guide positioning matching parts (A) at different position angles.

2. The microwave oven bottom plate fixing and locking structure according to claim 1, characterized in that: When the number of the guiding and positioning matching parts (A) is two, a two-point-in-line guiding and positioning assembly is formed between the microwave oven bottom plate (2) and the furnace chamber assembly (3) through the two guiding and positioning matching parts (A); When the number of the guiding and positioning matching parts is three, a three-point-to-plane guiding and positioning assembly is formed between the microwave oven bottom plate (2) and the furnace chamber assembly (3) through the three guiding and positioning matching parts (A).

3. The microwave oven bottom plate fixing and locking structure according to claim 1, characterized in that: The guide positioning matching portion (A) comprises a guide fixing buckle arranged on the bottom plate (2) of the microwave oven, and a positioning hole arranged on the furnace chamber assembly (3); when the bottom plate (2) of the microwave oven and the furnace chamber assembly (3) are assembled, the guide fixing buckle is guided and inserted into the positioning hole, and the guide fixing buckle is limited leftwardly and / or frontwardly on the inner peripheral side of the positioning hole.

4. The microwave oven bottom plate fixing and locking structure according to claim 3, characterized in that: The inner bottom wall of the microwave oven bottom plate (2) is provided with a process notch (201a) for bending and processing into a guide fixing buckle, so that the guide fixing buckle protrudes vertically upward and is arranged on the inner bottom wall of the microwave oven bottom plate (2).

5. The microwave oven bottom plate fixing and locking structure according to claim 3, characterized in that: A guiding inclined surface (201b) for guiding the insertion into the positioning hole is provided on the guiding fixing buckle.

6. The microwave oven bottom plate fixing and locking structure according to claim 3, characterized in that: The furnace chamber assembly (3) is provided with a bent edge (308) for assembling the microwave oven bottom plate (2), and a positioning hole is provided on the bent edge (308); when the microwave oven bottom plate (2) and the furnace chamber assembly (3) are assembled, the microwave oven bottom plate (2) is relatively abutted against the bent edge (308) of the furnace chamber assembly (3).

7. The microwave oven bottom plate fixing and locking structure according to claim 1, characterized in that: A first guide fixing buckle (201), a second guide fixing buckle (202), and a third guide fixing buckle (203) are provided on the bottom plate (2) of the microwave oven, and a first positioning hole (301), a second positioning hole (302), and a third positioning hole (303) are provided on the furnace component (3); the three guide fixing buckles and the three positioning holes are arranged in a one-to-one correspondence, and the three guide fixing buckles and the three positioning holes are arranged in a three-point plane arrangement at the matching position between the bottom plate (2) of the microwave oven and the furnace component (3), so as to realize a three-point plane guide positioning assembly between the bottom plate (2) of the microwave oven and the furnace component (3).

8. The microwave oven bottom plate fixing and locking structure according to claim 1, characterized in that: A locking fitting portion (B) for inserting and fixing the fastener (1) is also provided at the fitting point between the microwave oven bottom plate (2) and the furnace chamber assembly (3), so as to achieve a fixed connection between the microwave oven bottom plate (2) and the furnace chamber assembly (3).

9. The microwave oven bottom plate fixing and locking structure according to claim 8, characterized in that: The locking fitting portion (B) comprises a locking hole arranged on the microwave oven bottom plate (2) and an assembly hole arranged on the furnace chamber assembly (3); when the microwave oven bottom plate (2) is positioned and assembled on the furnace chamber assembly (3), the locking hole of the microwave oven bottom plate (2) and the assembly hole of the furnace chamber assembly (3) are arranged correspondingly and are used to insert a fastener.

10. The microwave oven bottom plate fixing and locking structure according to claim 1, characterized in that: The microwave oven bottom plate (2) is provided with a flange (208) for increasing the strength of the microwave oven bottom plate (2) and for assembling a microwave oven side plate.

Images