Pressure Cooking Appliances

Abstract

The present invention provides a pressure cooking device, comprising: a pot body for holding cooked food; a pot cover, which is arranged on the pot body and is provided with an exhaust channel; a pressure limiting valve, which cooperates with the exhaust channel, and the pressure limiting valve includes a pressure limiting valve body and a counterweight; a first transmission member and a second transmission member that cooperate with each other, and the second transmission member is pivotally arranged on the pot cover; a driving mechanism, which drives the first transmission member to rotate, and the second transmission member has a first position corresponding to the pressure limiting valve and a second position away from the pressure limiting valve under the transmission of the first transmission member; a magnetic mechanism, which is arranged on the second transmission member and / or the counterweight, and when the second transmission member is in the first position, the counterweight is separated from the pressure limiting valve body under the action of magnetic attraction, and when the first transmission member is in the second position, the counterweight is pressed on the pressure limiting valve body under the action of its gravity. The application of the technical solution of the present invention can effectively solve the problem of high processing difficulty of pressure cooking devices in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of small household appliances, and in particular to a pressure cooking device. Background Art

[0002] Electric pressure cookers are commonly used household appliances. In order to achieve the function of multi-stage pressure regulation, some electric pressure cooker products are equipped with a counterweight block with adjustable position at the pressure limiting valve. In the prior art, the position adjustment of the counterweight block is driven by a mechanical structure, such as a solenoid valve, a lever, an electric push rod and other structures. However, the above-mentioned driving mode requires high matching accuracy between the structures and is difficult to process. At the same time, after the product is used for a long time, wear and tear easily occurs between the mechanisms, and the adjustment accuracy is reduced. Summary of the invention

[0003] The main purpose of the present invention is to provide a pressure cooking device to solve the problem that the pressure cooking device in the prior art is difficult to manufacture.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a pressure cooking device, comprising: a pot body for holding food to be cooked; a pot cover, which is arranged on the pot body and is provided with an exhaust channel; a pressure limiting valve, which cooperates with the exhaust channel, and the pressure limiting valve includes a pressure limiting valve body and a counterweight; a first transmission member and a second transmission member that cooperate with each other, and the second transmission member is pivotally arranged on the pot cover; a driving mechanism, which drives the first transmission member to rotate, and the second transmission member has a first position corresponding to the pressure limiting valve and a second position away from the pressure limiting valve under the drive of the first transmission member; a magnetic mechanism, which is arranged on the second transmission member and / or the counterweight, and when the second transmission member is in the first position, the counterweight is separated from the pressure limiting valve body under the action of magnetic attraction, and when the first transmission member is in the second position, the counterweight is pressed on the pressure limiting valve body under the action of its gravity. A heating device, which is used to heat the food to be cooked.

[0005] Furthermore, the first transmission member is provided with a first transmission tooth, and the second transmission member is provided with a second transmission tooth, and the first transmission tooth is meshed with the second transmission tooth.

[0006] Furthermore, the second transmission member includes a rocker arm and a rotating shaft arranged on the rocker arm.

[0007] Furthermore, the rotating shaft separates the swing arm into a first rod body close to the first transmission member and a second rod body away from the first transmission member, the second transmission tooth is arranged on the first rod body, and the magnetic mechanism includes a first magnetic block, and the first magnetic block is arranged on the second rod body.

[0008] Furthermore, the first rod body is fan-shaped, the second transmission tooth is arranged on the arc-shaped edge of the end of the first rod body, and the first magnetic block is arranged at the end of the second rod body.

[0009] Furthermore, the first transmission member is a gear, and the length of the first rod body is greater than or equal to the radius of the first transmission member.

[0010] Furthermore, the first transmission member is a gear, and the teeth on the gear form first transmission teeth.

[0011] Furthermore, the magnetic mechanism includes a first magnetic block and a second magnetic block that can attract each other, the first magnetic block is arranged on the second transmission member, and the second magnetic block is arranged on the counterweight block. When the second transmission member rotates to the first position, the first magnetic block corresponds to the second magnetic block, and when the second transmission member rotates to the second position, the first magnetic block is away from the second magnetic block.

[0012] Furthermore, the counterweight block includes an upper shell and a lower shell that are interlocked, and the second magnetic block is clamped between the upper shell and the lower shell.

[0013] Furthermore, the pressure cooking appliance is an electric pressure cooker, the pot cover includes a surface cover, a liner and an inner cover arranged in sequence from the outside to the inside, the first transmission member, the second transmission member and the driving mechanism are arranged on the liner, and the exhaust channel is arranged on the inner cover.

[0014] By applying the technical solution of the present invention, when the driving mechanism drives the second transmission member to the first position through the first transmission member, the counterweight will be separated from the pressure-limiting valve body under the action of the magnetic attraction. When the gas pressure in the pot body can overcome the gravity of the pressure-limiting valve body, exhaust can be achieved. When the driving mechanism drives the second transmission member to the second position through the first transmission member, the counterweight will be pressed against the pressure-limiting valve body under the action of gravity. When the gas pressure in the pot body can overcome the gravity of the pressure-limiting valve body and the counterweight, exhaust can be achieved. Therefore, the above structure has low matching accuracy requirements and low processing difficulty on the basis of being able to achieve two working pressures and realize the function of multi-stage pressure regulation, thereby solving the problem of high processing difficulty of pressure cooking appliances in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram showing the exploded structure of a pot cover according to an embodiment of a pressure cooking device of the present invention is shown;

[0017] Figure 2 Shows Figure 1 A schematic top view of a pot cover when the second transmission member of the pressure cooking device is in a first position;

[0018] Figure 3 Shows Figure 2 An enlarged structural diagram of the pot cover at A;

[0019] Figure 4 Shows Figure 2 A schematic cross-sectional view of a pressure limiting valve of a pressure cooking appliance;

[0020] Figure 5 Shows Figure 1 A schematic top view of a pot cover when the second transmission member of the pressure cooking device is in a second position;

[0021] Figure 6 Shows Figure 5 An enlarged structural diagram of a pot cover at B;

[0022] Figure 7 Shows Figure 5 A schematic cross-sectional view of a pressure limiting valve of a pressure cooking appliance;

[0023] Figure 8 Shows Figure 1 A schematic diagram of the three-dimensional structure of a first transmission member of a pressure cooking device; and

[0024] Fig. 9 Shows Figure 1 A schematic three-dimensional structural diagram of a second transmission member of a pressure cooking appliance.

[0025] The above drawings include the following reference numerals:

[0026] 10. Pot cover; 11. Inner lining; 12. Inner cover; 20. Pressure limiting valve; 21. Pressure limiting valve body; 22. Counterweight; 221. Upper shell; 222. Lower shell; 31. First transmission member; 311. First transmission tooth; 32. Second transmission member; 321. Second transmission tooth; 322. Rocker; 323. Rotating shaft; 324. First rod body; 325. Second rod body; 41. First magnetic block; 42. Second magnetic block; 50. Driving mechanism. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figures 1 to 3 , Figure 5 and Figure 6As shown, the pressure cooking device of this embodiment includes: a pot body, a pot cover 10, a pressure limiting valve 20, a first transmission member 31 and a second transmission member 32 that cooperate with each other, a driving mechanism 50 and a magnetic mechanism. The pot body is used to hold food to be cooked. The pot cover 10 is covered on the pot body, and the pot cover 10 is provided with an exhaust channel. The pressure limiting valve 20 cooperates with the exhaust channel, and the pressure limiting valve 20 includes a pressure limiting valve body 21 and a counterweight 22. The second transmission member 32 is pivotally arranged on the pot cover 10. The driving mechanism 50 drives the first transmission member 31 to rotate, and the second transmission member 32 has a first position corresponding to the pressure limiting valve 20 and a second position away from the pressure limiting valve 20 under the drive of the first transmission member 31. The magnetic mechanism is arranged on the second transmission member 32 and / or the counterweight 22. When the second transmission member 32 is in the first position, the counterweight 22 is separated from the pressure limiting valve body 21 by the magnetic attraction. When the first transmission member 31 is in the second position, the counterweight 22 is pressed on the pressure limiting valve body 21 by its gravity. The heating device is used to heat the food to be cooked.

[0029] By applying the technical solution of this embodiment, when the driving mechanism 50 drives the second transmission member 32 to the first position through the first transmission member 31, the counterweight 22 will be separated from the pressure-limiting valve body 21 under the action of the magnetic attraction. When the gas pressure in the pot body can overcome the gravity of the pressure-limiting valve body 21, exhaust can be achieved. When the driving mechanism 50 drives the second transmission member 32 to the second position through the first transmission member 31, the counterweight 22 will be pressed on the pressure-limiting valve body 21 under the action of gravity. When the gas pressure in the pot body can overcome the gravity of the pressure-limiting valve body 21 and the counterweight 22, exhaust can be achieved. Therefore, the above structure can achieve two working pressures and realize the function of multi-stage pressure regulation. In addition, by applying the technical solution of the present invention, the pressure cooking device includes two first transmission members 31 and a second transmission member 32 that cooperate with each other. The above structure has the following advantages: First, for the pressure cooking device with the same distance between the driving mechanism 50 and the pressure limiting valve 20, the transmission part is divided into two transmission members so that the length of each transmission member is small, thereby avoiding the deformation of the produced product, and further avoiding the interference between the transmission member and the pressure limiting valve 20 when the transmission member rotates; Second, the transmission part is divided into the first transmission member and the second transmission member, so that the swing range of the second transmission member 32 can be larger under the condition that the transmission member occupies a small space. Due to the increase in the swing range, the distance between the second transmission member and the pressure limiting valve can be farther, and the influence of the magnetic mechanism on the pressure limiting valve 20 can be smaller, ensuring that the pressure cooking device can cook at a predetermined working pressure.

[0030] like Figures 1 to 3 , Figure 5 and Figure 6As shown, in this embodiment, the first transmission member 31 is provided with a first transmission tooth 311, and the second transmission member 32 is provided with a second transmission tooth 321, and the first transmission tooth 311 meshes with the second transmission tooth 321. The above structure is simple and has high precision, making the voltage regulation easier to control.

[0031] like Figures 1 to 3 , Figure 5 and Figure 6 As shown, in this embodiment, the second transmission member 32 includes a swing rod 322 and a rotating shaft 323 disposed on the swing rod 322. The second transmission member 32 is pivotally disposed on the pot cover 10 through the swing rod 322. When the driving mechanism 50 drives the first transmission member 31 to rotate, the first transmission member 31 drives the swing rod 322 engaged therewith to rotate. The above structure is simple and easy to implement.

[0032] like Figures 1 to 7 As shown, in this embodiment, the rotating shaft 323 separates the swing rod 322 into a first rod body 324 close to the first transmission member 31 and a second rod body 325 away from the first transmission member 31, the second transmission tooth 321 is arranged on the first rod body 324, and the magnetic mechanism includes a first magnetic block 41, and the first magnetic block 41 is arranged on the second rod body 325. When the driving mechanism 50 drives the first transmission member 31 to rotate, the first transmission member 31 engages with the first rod body 324 to drive the swing rod 322 to rotate, and when the second rod body 325 swings to the top of the counterweight 22 (the first position), the counterweight 22 will be separated from the pressure-limiting valve body 21 under the action of the magnetic attraction of the first magnetic block 41. When the second rod body 325 swings to a position away from the counterweight 22 (the second position), the counterweight 22 is no longer subject to the upward attraction, and is pressed on the pressure-limiting valve body 21 under the action of its own gravity. Preferably, in this embodiment, the counterweight 22 is provided with a second magnetic block 42. The above-mentioned magnetic attraction can be formed between the first magnetic block 41 and the second magnetic block 42. Of course, those skilled in the art should know that the counterweight block 22 can also be made of ferromagnetic material. Alternatively, in other embodiments, the swing rod 322 is made of ferromagnetic material, and the second magnetic block 42 is provided on the counterweight block 22. The above-mentioned magnetic attraction can also be formed between the magnet and the ferromagnetic material.

[0033] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Fig. 9 As shown, in this embodiment, the first rod 324 is fan-shaped, the second transmission tooth 321 is arranged on the arc edge of the end of the first rod 324, and the first magnetic block 41 is arranged at the end of the second rod 325. The above structure is simple, occupies little space, and is convenient for processing and production.

[0034] like Figures 1 to 3 , Figure 5 and Figure 6 As shown, in this embodiment, the first transmission member 31 is a gear, and the length of the first rod 324 is greater than or equal to the radius of the first transmission member 31. The above structure further improves the control accuracy, thereby making the voltage regulation control more accurate.

[0035] like Figures 1 to 3 , Figure 5 , Figure 6 and Figure 8 As shown, in this embodiment, the first transmission member 31 is a gear, and the teeth on the gear form the first transmission teeth 311. The above structure is simple and low in cost. Preferably, in this embodiment, the driving mechanism 50 is a driving motor, and the motor shaft of the driving motor cooperates with the gear to drive the gear to rotate.

[0036] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in this embodiment, the magnetic mechanism includes a first magnetic block 41 and a second magnetic block 42 that can attract each other, the first magnetic block 41 is arranged on the second transmission member 32, and the second magnetic block 42 is arranged on the counterweight block 22. When the second transmission member 32 rotates to the first position, the first magnetic block 41 corresponds to the second magnetic block 42, and when the second transmission member 32 rotates to the second position, the first magnetic block 41 is away from the second magnetic block 42. The above structure is simple and the production cost is low.

[0037] like Figure 4 and Figure 7 As shown, in this embodiment, the counterweight block 22 includes an upper shell 221 and a lower shell 222 that are engaged with each other, and the second magnetic block 42 is sandwiched between the upper shell 221 and the lower shell 222. The above structure makes the appearance of the pressure limiting valve more beautiful.

[0038] like Figure 1 As shown, in this embodiment, the pressure cooking appliance is an electric pressure cooker, and the pot cover 10 includes a surface cover, a lining 11 and an inner cover 12 which are arranged in sequence from the outside to the inside, a first transmission member 31, a second transmission member 32 and a driving mechanism 50 are arranged on the lining 11, a cover tooth is arranged on the inner cover 12, and a pot tooth which cooperates with the cover tooth is arranged on the pot body.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure cooking device, characterized in that: include: The pot body is used to hold the food to be cooked; A pot cover (10) is arranged on the pot body, and the pot cover (10) is provided with an exhaust passage; A pressure limiting valve (20) cooperates with the exhaust passage, the pressure limiting valve (20) comprising a pressure limiting valve body (21) and a counterweight (22); A first transmission member (31) and a second transmission member (32) that cooperate with each other, wherein the second transmission member (32) is pivotally arranged on the pot cover (10); a driving mechanism (50) for driving the first transmission member (31) to rotate, wherein the second transmission member (32) has a first position corresponding to the pressure limiting valve (20) and a second position away from the pressure limiting valve (20) under the transmission of the first transmission member (31); a magnetic mechanism, arranged on the second transmission member (32) and / or the counterweight (22); when the second transmission member (32) is in the first position, the counterweight (22) is separated from the pressure-limiting valve body (21) under the action of magnetic attraction; and when the first transmission member (31) is in the second position, the counterweight (22) is pressed on the pressure-limiting valve body (21) under the action of its gravity; A heating device for heating food to be cooked.

2. The pressure cooking device according to claim 1, characterized in that: The first transmission member (31) is provided with a first transmission tooth (311), and the second transmission member (32) is provided with a second transmission tooth (321), and the first transmission tooth (311) is meshed with the second transmission tooth (321).

3. The pressure cooking device according to claim 2, characterized in that: The second transmission member (32) comprises a rocker rod (322) and a rotating shaft (323) arranged on the rocker rod (322).

4. The pressure cooking device according to claim 3, characterized in that: The rotating shaft (323) separates the swing rod (322) into a first rod body (324) close to the first transmission member (31) and a second rod body (325) away from the first transmission member (31); the second transmission tooth (321) is arranged on the first rod body (324); and the magnetic mechanism comprises a first magnetic block (41); and the first magnetic block (41) is arranged on the second rod body (325).

5. The pressure cooking device according to claim 4, characterized in that: The first rod body (324) is fan-shaped, the second transmission tooth (321) is arranged on the arc-shaped edge of the end of the first rod body (324), and the first magnetic block (41) is arranged at the end of the second rod body (325).

6. The pressure cooking device according to claim 4, characterized in that The first transmission member (31) is a gear, and the length of the first rod body (324) is greater than or equal to the radius of the first transmission member (31).

7. The pressure cooking device according to claim 2, characterized in that: The first transmission member (31) is a gear, and the teeth on the gear form the first transmission teeth (311).

8. The pressure cooking device according to claim 1, characterized in that The magnetic mechanism comprises a first magnetic block (41) and a second magnetic block (42) which can attract each other, the first magnetic block (41) being arranged on the second transmission member (32), and the second magnetic block (42) being arranged on the counterweight block (22); when the second transmission member (32) rotates to the first position, the first magnetic block (41) corresponds to the second magnetic block (42); when the second transmission member (32) rotates to the second position, the first magnetic block (41) is away from the second magnetic block (42).

9. The pressure cooking device according to claim 8, characterized in that The counterweight block (22) comprises an upper shell (221) and a lower shell (222) which are interlocked, and the second magnetic block (42) is sandwiched between the upper shell (221) and the lower shell (222).

10. The pressure cooking device according to any one of claims 1 to 9, characterized in that: The pressure cooking device is an electric pressure cooker, the pot cover (10) comprises a surface cover, an inner lining (11) and an inner cover (12) which are arranged in sequence from the outside to the inside, the first transmission member (31), the second transmission member (32) and the driving mechanism (50) are arranged on the inner lining (11), and the exhaust passage is arranged on the inner cover (12).

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