Electric pressure cooker heating plate elastic piece adjustable structure

Abstract

The utility model provides an electric pressure cooker heating plate elastic piece adjustable structure which comprises a cooker body and a cooker cover capable of covering the cooker body, the cooker body is provided with an inner layer cylinder, an inner cooker is arranged in the inner layer cylinder, and when the cooker cover covers the cooker body, the inner cooker is covered by the cooker cover. The bottom of an inner cavity of the inner-layer cylinder is provided with a heating disc used for being attached to the bottom of an inner pot, the bottom of the inner cavity of the inner-layer cylinder is provided with at least two boss sets, each boss set comprises a first boss and a second boss, an elastic piece is placed on the upper surface of each boss set, the heating disc is provided with supporting feet corresponding to the boss sets, and the supporting feet correspond to the first boss sets and the second boss sets. The electric pressure cooker heating plate elastic piece adjustable structure is characterized in that the pot body is provided with a first boss and a second boss, the second boss is provided with a plurality of supporting legs, the supporting legs are located between the first boss and the second boss and abut against the upper surface of the elastic piece in a pressing mode, and the pot body is provided with an adjusting structure used for adjusting the distance between the first boss and the second boss. The elastic force of the elastic sheet of the pressure cooker is adjusted.

Description

Technical Field

[0001] The utility model specifically relates to an adjustable structure of a heating plate elastic sheet for an electric pressure cooker. Background Art

[0002] In the field of kitchen appliances, due to its characteristics such as fast cooking, nutrition retention, and easy operation, the electric pressure cooker has become one of the indispensable kitchen appliances in modern families. One of the core components of the electric pressure cooker is the heating plate, which is directly related to the heating efficiency and food cooking quality. The heating plate is usually located at the bottom of the inner layer cylinder of the electric pressure cooker and transfers heat by closely contacting the bottom surface of the inner pot to achieve heating of the food. At present, there are a wide variety of electric pressure cookers on the market with various styles. However, for existing elastic structure electric pressure cookers, elastic elements are provided between the electric heating plate and the middle layer. Reference can be made to the patent solution with the patent number CN202020759677.4 and the name of an electric pressure cooker applied by the inventor before. However, for this traditional electric pressure cooker, technically, due to the fixed connection of the electric heating plate, the elastic sheet, and the middle layer cylinder, it can only work under the rated pressure and cannot adjust the elasticity of the elastic sheet. Especially when the elastic sheet has a continuously decreasing elastic coefficient due to metal fatigue after long-term use, the working pressure will continuously decay, affecting the cooking effect. On the other hand, it will greatly reduce the service life of the product.

[0003] The present utility model is precisely generated based on the above deficiencies. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide an adjustable structure of a heating plate elastic sheet for an electric pressure cooker to achieve the adjustment of the elasticity of the elastic sheet of the pressure cooker.

[0005] The present utility model is realized through the following technical solutions:

[0006] An adjustable structure of a heating plate elastic sheet for an electric pressure cooker includes a pot body and a pot lid that can cover the pot body. The pot body is provided with an inner layer cylinder, and an inner pot is arranged inside the inner layer cylinder. When the pot lid covers the pot body, the inner pot is covered by the pot lid. A heating plate for abutting against the bottom of the inner pot is arranged at the bottom of the inner cavity of the inner layer cylinder. At least two groups of boss groups are arranged at the bottom of the inner cavity of the inner layer cylinder. Each group of boss groups includes a first boss and a second boss. An elastic sheet is placed on the upper surface of each group of boss groups. The heating plate is provided with supporting feet corresponding to the boss groups. The supporting feet are located between the first boss and the second boss and press against the upper surface of the elastic sheet. An adjusting structure for adjusting the distance between the first boss and the second boss is arranged on the pot body.

[0007] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, the first boss is fixedly connected to the bottom of the inner cavity of the inner cylinder, the second boss is slidably connected to the inner cylinder, and the adjusting structure includes a driving member for pushing the second boss to slide relative to the inner cylinder.

[0008] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, a ring-shaped mounting plate capable of rotating relative to it is connected to the inner cylinder, the second boss of each set of boss groups is connected to the ring-shaped mounting plate, the driving member is rotatably connected to the pot body, a first mating tooth is provided on the outer side surface of the ring-shaped mounting plate, one end of the driving member extends out of the pot body for manual operation, and a second mating tooth meshingly connected to the first mating tooth is provided at the other end of the driving member.

[0009] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, a plurality of circumferentially distributed mounting brackets are provided at the bottom of the inner cylinder, sliding holes for the ring-shaped mounting plate to pass through are provided on the mounting brackets, and the sliding holes of all the mounting brackets together form a ring-shaped channel, so that the ring-shaped mounting plate can rotate relative to the inner cylinder.

[0010] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, a circular groove is provided at the bottom of the inner cylinder, the ring-shaped mounting plate is arranged in the groove, the mounting brackets are connected to the groove wall, a sliding groove hole is opened on the side wall of the inner cylinder, and a sliding rod is connected between the second boss and the ring-shaped mounting plate, and the sliding rod passes through the sliding groove hole.

[0011] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, an operating part for manual holding and operation is provided at one end of the driving member extending out of the pot body.

[0012] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, a connecting piece is provided between two adjacent elastic sheets, the elastic sheets and the connecting pieces are arranged alternately to form a ring-shaped structure, and the elastic sheets and the connecting pieces are an integrally formed integral structure.

[0013] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, a stress cutting section with one end bent is provided in the middle of the connecting piece.

[0014] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, the width H of the elastic sheet gradually increases or decreases along the circumferential direction.

[0015] The adjustable structure of the heating plate elastic sheet of the electric pressure cooker as described above, the shape of the stress cutting section is S-shaped.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] The electric pressure cooker of the present utility model is provided with an adjusting structure, which can adjust the distance between the first boss and the second boss, so that the bending strength of the elastic piece changes accordingly, and can indirectly adjust the displacement of the heating plate under the same pressure, thereby being able to adjust the internal pressure of the inner pot during the normal operation of the product. In addition, after the product is used for a long time, due to the metal fatigue of the elastic piece, the control of the internal pressure of the inner pot during operation is inaccurate. It is also possible to adjust the bending strength of the elastic piece by adjusting the distance between the first boss and the second boss, thereby reducing the negative impact caused by the continuous attenuation of the working pressure and greatly improving the service life of the product. Brief Description of the Drawings

[0018] Figure 1 is a perspective schematic diagram of the electric pressure cooker of the present utility model;

[0019] Figure 2 is a cross-sectional schematic diagram of the electric pressure cooker of the present utility model;

[0020] Figure 3 is a schematic diagram of the bottom structure of the electric pressure cooker of the present utility model;

[0021] Figure 4 is a partial exploded schematic diagram of the electric pressure cooker of the present utility model Figure 1 ;

[0022] Figure 5 is a partial exploded schematic diagram of the electric pressure cooker of the present utility model Figure 2 ;

[0023] Figure 6 is a schematic diagram of the top view state of the inner cylinder of the present utility model;

[0024] Figure 7 is a schematic diagram of the bottom structure of the inner cylinder of the present utility model;

[0025] Figure 8 is a schematic diagram of the structure of the elastic piece and the connecting piece of the present utility model;

[0026] Figure 9 is a front view schematic diagram of the elastic piece and the connecting piece of the present utility model. Detailed Embodiments

[0027] The present utility model will be further described below in conjunction with the drawings:

[0028] The directions described in the utility model specification, such as "up", "down", "left", "right", "front", "rear", etc., are all based on the directions of the drawings and are for the purpose of facilitating the description of the relationships between various components, and do not indicate the only or absolute positional relationships between various components. It is only one of the implementation manners for realizing the utility model and is not a limitation on its implementation manners.

[0029] This embodiment provides an adjustable structure for the elastic sheet of the heating plate of an electric pressure cooker. As Figures 1 to 6 shown, this electric pressure cooker includes a pot body 1 and a pot lid 2 that can cover the pot body 1. The pot body 1 is provided with an inner layer cylinder 3, and an inner pot 4 is arranged inside the inner layer cylinder 3. When the pot lid 2 covers the pot body 1, the pot lid 2 covers the inner pot 4. At the bottom of the inner cavity of the inner layer cylinder 3, there is a heating plate 5 for abutting against the bottom of the inner pot 4. At least two groups of boss groups 31 are arranged at the bottom of the inner cavity of the inner layer cylinder 3. Each group of boss groups 31 includes a first boss 311 and a second boss 312. An elastic sheet 61 is placed on the upper surface of each group of boss groups 31. The heating plate 5 is provided with supporting feet 51 corresponding to the boss groups 31. The supporting feet 51 are located between the first boss 311 and the second boss 312 and press against the upper surface of the elastic sheet 61. That is, both ends of the elastic sheet 61 are respectively supported on the first boss 311 and the second boss 312, and the supporting feet 51 of the heating plate 5 abut against the middle of the elastic sheet 61 from top to bottom. During the operation of the product, when the internal pressure in the inner pot 4 increases, it will cause the inner pot to press downwards, making the heating plate 5 press downwards, and then causing the elastic sheet 61 to deform. By position sensing, the displacement of the heating plate is sensed, and then the start and stop of the product are controlled. An adjusting structure 7 for adjusting the distance between the first boss 311 and the second boss 312 is arranged on the pot body 1. By adjusting the distance between the first boss 311 and the second boss 312, the bending strength of the elastic sheet 61 changes accordingly, and the displacement of the heating plate under the same pressure can be indirectly adjusted, so that the internal pressure in the inner pot 4 during the normal operation of the product can be adjusted. In addition, after the product has been used for a long time, due to the metal fatigue of the elastic sheet 61, the control of the internal pressure in the inner pot 4 during operation is inaccurate. The bending strength of the elastic sheet 61 can also be increased by adjusting the distance between the first boss 311 and the second boss 312, thereby reducing the negative impact caused by the continuous attenuation of the working pressure and greatly improving the service life of the product.

[0030] Specifically, as Figures 3 to 7As shown in the figure, the first boss 311 is fixedly connected to the bottom of the inner cylinder 3 cavity, the second boss 312 is slidably connected to the inner cylinder 3, and the adjustment structure 7 includes a driving member 71 for pushing the second boss 312 to slide relative to the inner cylinder 3. Preferably, an annular mounting plate 32 that can rotate relative to it is connected to the inner cylinder 3. The second boss 312 of each boss group 31 is connected to the annular mounting plate 32. The driving member 71 is rotatably connected to the pot body 1. The outer side surface of the annular mounting plate 32 is provided with a first mating tooth 321. One end of the driving member 71 extends outside the pot body 1 for manual operation, and the other end of the driving member 71 is provided with a second mating tooth 711 that meshes with the first mating tooth 321. When the driving member 71 rotates a certain angle, through the cooperation and transmission of the first mating tooth 321 and the second mating tooth 711, the annular mounting plate 32 can rotate relative to the inner cylinder 3, and further the second boss 312 connected to the annular mounting plate 32 slides relative to the inner cylinder 3. Since the sliding direction of the second boss 312 is along the circumferential direction, the second boss 312 also rotates relative to the inner cylinder 3. For ease of operation, as Figure 3 shown, an operating portion 72 for manual gripping and operation is provided at the end of the driving member 71 that extends outside the pot body 1.

[0031] Preferably, as Figure 5 and Figure 7 shown, a plurality of circumferentially distributed mounting brackets 33 are provided at the bottom of the inner cylinder 3. The mounting brackets 33 are provided with sliding holes 331 through which the annular mounting plate 32 passes. The sliding holes 331 of all the mounting brackets 33 together form an annular channel, enabling the annular mounting plate 32 to rotate relative to the inner cylinder 3.

[0032] Preferably, as Figure 5 and Figure 7 shown, a groove 34 is provided in a circle at the bottom of the inner cylinder 3. The annular mounting plate 32 is arranged in the groove 34. The mounting bracket 33 is connected to the groove wall of the groove 34. A sliding groove hole 35 is opened on the side wall of the inner cylinder 3. A sliding rod 36 is connected between the second boss 312 and the annular mounting plate 32. The sliding rod 36 passes through the sliding groove hole 35. The second boss 312 is arranged at the bottom inside the inner cylinder 3, while the groove 34 is arranged at the bottom outside the inner cylinder 3. Therefore, the sliding rod 36 passing through the sliding groove hole 35 can connect the second boss 312 and the annular mounting plate 32. On the one hand, the structure is more stable, and on the other hand, the second boss 312 can slide relative to the inner cylinder 3 along the sliding groove hole 35.

[0033] As a preferred technical solution, as Figure 8 and Figure 9As shown, a connecting piece 62 is provided between two adjacent elastic pieces 61. The elastic pieces 61 and the connecting piece 62 are arranged alternately to form an annular structure, and the elastic pieces 61 and the connecting piece 62 are an integrally formed integral structure, which simplifies the structure and is convenient for production, manufacture, installation and replacement.

[0034] Preferably, as Figure 8 and Figure 9 shown, a stress cut-off section 621 with one end bent is provided in the middle of the connecting piece 62, thereby reducing the large stress generated between adjacent elastic pieces 61 when they are deformed. Preferably, the shape of the stress cut-off section 621 is an S shape.

[0035] Preferably, as Figure 8 and Figure 9 shown, the width H of the elastic piece 61 gradually increases or decreases along the circumferential direction, that is, the width H of the elastic piece 61 is variable. In this way, when adjusting the distance between the first boss 311 and the second boss 312, the influence on the bending strength of the elastic piece 61 is greater.

[0036] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An adjustable structure for the elastic piece of the heating plate of an electric pressure cooker, comprising a pot body (1) and a pot lid (2) that can be closed on the pot body (1). The pot body (1) is provided with an inner layer cylinder (3), and an inner pot (4) is arranged inside the inner layer cylinder (3). When the pot lid (2) is closed on the pot body (1), the pot lid (2) closes the inner pot (4). The bottom of the inner cavity of the inner layer cylinder (3) is provided with a heating plate (5) for abutting against the bottom of the inner pot (4), and it is characterized in that: At least two groups of boss groups (31) are provided at the bottom of the inner cavity of the inner cylinder (3). Each group of boss groups (31) includes a first boss (311) and a second boss (312). A shrapnel (61) is placed on the upper surface of each group of boss groups (31). The heating plate (5) is provided with feet (51) corresponding to the boss groups (31). The feet (51) are located between the first boss (311) and the second boss (312) and press against the upper surface of the shrapnel (61). An adjusting structure (7) for adjusting the distance between the first boss (311) and the second boss (312) is provided on the pot body (1).

2. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 1, wherein: The first boss (311) is fixedly connected to the bottom of the inner cavity of the inner cylinder (3). The second boss (312) is slidably connected to the inner cylinder (3). The adjusting structure (7) includes a driving member (71) for pushing the second boss (312) to slide relative to the inner cylinder (3).

3. The adjustable structure of the heating plate elastic sheet of the electric pressure cooker according to claim 2, characterized in that: An annular mounting plate (32) capable of rotating relative to it is connected to the inner cylinder (3). The second boss (312) of each group of boss groups (31) is connected to the annular mounting plate (32). The driving member (71) is rotatably connected to the pot body (1). A first mating tooth (321) is provided on the outer side surface of the annular mounting plate (32). One end of the driving member (71) extends out of the pot body (1) for manual operation, and a second mating tooth (711) meshing with the first mating tooth (321) is provided at the other end of the driving member (71).

4. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 3, wherein: A plurality of circumferentially distributed mounting brackets (33) are provided at the bottom of the inner cylinder (3). The mounting brackets (33) are provided with sliding holes (331) through which the annular mounting plate (32) passes. The sliding holes (331) of all the mounting brackets (33) together form an annular channel, so that the annular mounting plate (32) can rotate relative to the inner cylinder (3).

5. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 4, characterized in that: A groove (34) is provided in a circle at the bottom of the inner cylinder (3). The annular mounting plate (32) is arranged in the groove (34). The mounting brackets (33) are connected to the groove wall of the groove (34). A sliding groove hole (35) is provided on the side wall of the inner cylinder (3). A sliding rod (36) is connected between the second boss (312) and the annular mounting plate (32). The sliding rod (36) passes through the sliding groove hole (35).

6. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 3, characterized in that: An operation part (72) for manual gripping and operation is provided at the end of the driving member (71) extending out of the pot body (1).

7. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 1, characterized in that: A connecting piece (62) is provided between two adjacent shrapnels (61). The shrapnels (61) and the connecting pieces (62) are arranged alternately to form an annular structure, and the shrapnels (61) and the connecting pieces (62) are an integrally formed integral structure.

8. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 7, characterized in that: A stress cut-off section (621) with one end bent is provided in the middle of the connecting piece (62).

9. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 7, wherein: The width H of the shrapnel (61) gradually increases or decreases along the circumferential direction.

10. The adjustable structure of the heating plate elastic piece of the electric pressure cooker according to claim 8, characterized in that: The shape of the stress cut-off section (621) is S-shaped.

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