Supporting structure for pressure cooker

Abstract

The utility model discloses a supporting structure for a pressure cooker, which comprises an outer cooker body, a plurality of groups of lug bosses capable of supporting an electric hot tray are uniformly distributed on the bottom surface of an inner cavity of the outer cooker body along the circumference, and the supporting structure is characterized in that each group of lug bosses is respectively provided with two bulges which are arranged at intervals, and first through holes are respectively formed in the two bulges in a penetrating manner; a limiting assembly capable of moving up and down relative to the first penetrating hole is inserted into the first penetrating hole, a manganese steel sheet is arranged between the two limiting assemblies of the same set of protruding parts in a sleeved mode, the manganese steel sheet is arranged between the electric heating disc and the protruding parts in a cushioned mode, and a buffering deformation space is formed between the middle of the manganese steel sheet located on the same set of protruding parts and the two protruding parts. Each set of protruding parts is provided with two spaced protrusions and provided with a manganese steel sheet elastic supporting unit, when the axial pressure of the inner container on the electric hot tray is increased due to the fact that the air pressure in the pot rises, the manganese steel sheets are elastically bent in the buffering deformation space, and concentrated loads are converted into distributed loads to be transmitted to the outer pot body.

Description

Technical Field

[0001] This utility model specifically relates to a support structure for a pressure cooker. Background Technology

[0002] In the field of kitchen appliances, pressure cookers are widely used due to their efficient heating performance. The heating plate, as the core heating component of a pressure cooker, directly affects heating efficiency and service life due to its installation stability and uniform stress distribution. Existing pressure cooker support structures typically have a single protrusion or simple support point on the bottom surface of the outer pot's inner cavity, with the heating plate directly pressing against this point. However, when the pressure inside the pot increases, the axial pressure of the inner pot on the heating plate (heating base) increases significantly. Existing structures rely solely on the rigid contact between the support legs and the bottom surface of the outer pot to transfer the load, resulting in insufficient resistance to deformation and difficulty in effectively counteracting the high-pressure force applied by the inner pot. This not only leads to uneven stress on the heating plate but also easily causes localized deformation of the bottom surface of the outer pot, affecting the overall structural reliability of the cooker. Utility Model Content

[0003] In view of the deficiencies of the existing technology, the technical problem to be solved by this utility model is to provide a support structure for a pressure cooker.

[0004] A support structure for a pressure cooker includes an outer pot body. The bottom surface of the inner cavity of the outer pot body is evenly distributed with several sets of protrusions that can support the heating plate. Each set of protrusions has two protrusions spaced apart. A first through hole is passed through each of the two protrusions. A limiting component that can move up and down relative to the first through hole is inserted into the first through hole. A manganese steel sheet is sleeved between the two limiting components of the same set of protrusions. The manganese steel sheet is placed between the heating plate and the protrusions, and a buffer deformation space is formed between the middle of the manganese steel sheet on the same set of protrusions and the two protrusions.

[0005] In one embodiment, the limiting component includes a limiting screw that can be sequentially inserted into the manganese steel sheet and the first through hole, and a limiting nut that is threadedly fitted onto the end of the limiting screw and located on the outside of the outer pot body; wherein, the limiting screw is provided with a connector, a smooth rod and a threaded part from top to bottom, the manganese steel sheet is fitted onto the smooth rod and can be displaced along the axial direction of the smooth rod, and the relative distance between the connector and the limiting nut is greater than the sum of the thickness of the manganese steel sheet and the thickness of the protrusion.

[0006] In one embodiment, the protrusions are provided with a plurality of first protrusions and a plurality of second protrusions from the center of the inner cavity of the outer pot body outward. The plurality of first protrusions are evenly distributed in a circle on the outer pot body, and the plurality of second protrusions are evenly distributed in a circle on the outer pot body.

[0007] In one embodiment, there are two manganese steel sheets located on the same group of protrusions, and the two manganese steel sheets are stacked.

[0008] In one embodiment, the thickness of the manganese steel sheet is 2.4 mm to 3 mm.

[0009] In summary, the advantages of this utility model over the prior art are:

[0010] This invention features two spaced protrusions in each group of protrusions, each equipped with a manganese steel sheet elastic support unit. When the internal gas pressure increases, leading to a greater axial pressure of the inner liner on the heating plate, the manganese steel sheet undergoes elastic bending within the buffer deformation space, transforming the concentrated load into a distributed load that is transferred to the outer pot body. Compared to traditional rigid support structures, this design reduces stress on the bottom surface of the outer pot body, significantly reduces the risk of bottom surface deformation, and improves structural stability under high-pressure conditions.

[0011] Furthermore, the manganese steel sheet is non-locking at both ends through the bare rods of the limiting screws, allowing it to spring upward as a whole under axial force. Thus, when the pressure in the inner tank increases or the heating plate expands, the manganese steel sheet bends downward under axial pressure, storing elastic potential energy using the buffer deformation space between the two protrusions. When the pressure decreases or the heating plate contracts, the manganese steel sheet, because its ends are not locked, can spring upward as a whole under the action of elastic restoring force until it re-makes tight contact with the bottom surface of the heating plate. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of a support structure for a pressure cooker according to one embodiment of the present invention.

[0013] Figure 2 As one embodiment of this utility model Figure 1 Enlarged view of point A;

[0014] Figure 3 This is an exploded view of a support structure for a pressure cooker according to one embodiment of the present invention.

[0015] Figure 4 This is a top view of a support structure for a pressure cooker according to one embodiment of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] like Figures 1 to 4The present invention preferably provides a support structure for a pressure cooker, including an outer pot body 1. The bottom surface of the inner cavity of the outer pot body 1 is evenly distributed with several sets of protrusions supporting the heating plate. Each set of protrusions has two spaced-apart protrusions 2. A first through hole 3 passes through each of the two protrusions 2. A limiting component 4, which can move vertically relative to the first through hole 3, is inserted into the first through hole 3. A manganese steel sheet 5 is sleeved between the two limiting components 4 of the same set of protrusions. The manganese steel sheet 5 is placed between the heating plate and the protrusions, and a buffer deformation space is formed between the middle of the manganese steel sheet 5 on the same set of protrusions and the two protrusions 2. Specifically, each set of protrusions has two spaced-apart protrusions and is equipped with a manganese steel sheet elastic support unit. When the gas pressure inside the pot increases, causing an increase in the axial pressure of the inner pot on the heating plate, the manganese steel sheet undergoes elastic bending within the buffer deformation space, converting the concentrated load into a distributed load and transmitting it to the outer pot body. Compared to traditional rigid support structures, this design can reduce the stress on the bottom surface of the outer pot, significantly reduce the risk of bottom surface deformation, and improve the structural stability under high pressure conditions.

[0018] Furthermore, the limiting component 4 includes a limiting screw 6 that can be sequentially inserted into the manganese steel sheet 5 and the first through hole 3, and a limiting nut 7 that is threadedly fitted onto the end of the limiting screw 6 and located on the outside of the outer pot body 1; wherein, the limiting screw 6 is provided with a connector 8, a smooth rod 9 and a threaded part 10 in sequence from top to bottom, the manganese steel sheet 5 is fitted onto the smooth rod 9 and can be displaced along the axial direction of the smooth rod 9, and the relative distance between the connector 8 and the limiting nut 7 is greater than the sum of the thickness of the manganese steel sheet 5 and the thickness of the protrusion 2.

[0019] Specifically, the length of the bare rod must be greater than the sum of the thickness of the manganese steel sheet and the height of the protrusion, to allow space for the rebound stroke; no fixing buckles or welding structures are set between the bottom surface of the connector and the upper surface of the manganese steel sheet, or between the lower surface of the manganese steel sheet and the top surface of the protrusion, and axial limiting is only achieved by the limiting nut (a 0.5mm-1mm adjustment gap is maintained between the limiting nut and the bottom surface of the outer pot body);

[0020] Furthermore, the manganese steel sheet is non-locking at both ends through the bare rods of the limiting screws, allowing it to spring back upwards as a whole under axial force. When the pressure inside the tank increases or the heating plate expands, the manganese steel sheet bends downwards under axial pressure, storing elastic potential energy using the buffer deformation space between the two protrusions. When the pressure decreases or the heating plate contracts, the manganese steel sheet, because its ends are not locked, can spring back upwards as a whole under the action of elastic restoring force until it re-makes tight contact with the bottom surface of the heating plate.

[0021] Furthermore, the protrusions are provided with several sets of first protrusions and several sets of second protrusions radiating outward from the center of the inner cavity of the outer pot body 1. The sets of first protrusions and the sets of second protrusions are evenly distributed circumferentially on the outer pot body 1. Furthermore, there are two manganese steel sheets 5 located on the same set of protrusions, and the two manganese steel sheets 5 are stacked. Specifically, the protrusions adopt a circumferentially distributed design of multiple sets of first and second protrusions, forming a multi-layered annular support structure. Compared with the traditional single support point, this significantly improves the lateral stability of the heating plate and reduces vibration and displacement during operation. The stacked manganese steel sheets further enhance the buffer stiffness, meeting the requirements of different load conditions.

[0022] Furthermore, the thickness of the manganese steel sheet 5 is 2.4 mm to 3 mm. Limiting the thickness of the manganese steel sheet to 2.4 mm to 3 mm ensures sufficient strength while also taking into account elastic deformation capacity.

[0023] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A support structure for a pressure cooker, comprising an outer pot body (1), wherein the bottom surface of the inner cavity of the outer pot body (1) is provided with a plurality of protrusions evenly distributed along the circumference to support a heating plate, characterized in that: Each group of protrusions has two protrusions (2) spaced apart. A first through hole (3) is passed through each of the two protrusions (2). A limiting component (4) that can move up and down relative to the first through hole (3) is inserted into the first through hole (3). A manganese steel sheet (5) is sleeved between the two limiting components (4) of the same group of protrusions. The manganese steel sheet (5) is placed between the heating plate and the protrusions, and a buffer deformation space is formed between the middle of the manganese steel sheet (5) on the same group of protrusions and the two protrusions (2).

2. A support structure for a pressure cooker as claimed in claim 1, characterized in that: The limiting component (4) includes a limiting screw (6) that can be inserted into the manganese steel sheet (5) and the first through hole (3) in sequence, and a limiting nut (7) that is threadedly fitted on the end of the limiting screw (6) and located on the outside of the outer pot body (1); wherein, the limiting screw (6) is provided with a connector (8), a smooth rod (9) and a threaded part (10) in sequence from top to bottom, the manganese steel sheet (5) is fitted on the smooth rod (9) and can be displaced along the axial direction of the smooth rod (9), and the relative distance between the connector (8) and the limiting nut (7) is greater than the sum of the thickness of the manganese steel sheet (5) and the thickness of the protrusion (2).

3. The support structure for a pressure cooker according to claim 1, characterized in that: The protrusions are provided with several groups of first protrusions and several groups of second protrusions from the center of the inner cavity of the outer pot body (1) outward. The several groups of first protrusions are evenly distributed in a circle on the outer pot body (1), and the several groups of second protrusions are evenly distributed in a circle on the outer pot body (1).

4. The support structure for a pressure cooker of claim 1, wherein: There are two manganese steel sheets (5) located on the same protrusion, and the two manganese steel sheets (5) are stacked.

5. A support structure for a pressure cooker according to claim 1, characterized in that: The thickness of the manganese steel sheet (5) is 2.4 mm to 3 mm.

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