Pressure cooking utensil and steam exhaust device thereof

Abstract

The utility model relates to the technical field of kitchen appliances, and provides a pressure cooking utensil and a steam exhaust device thereof. The steam exhaust device of the cooking utensil comprises a steam exhaust pipe, a heavy hammer for blocking the steam exhaust pipe and a steam exhaust lever, the steam exhaust lever comprises an arch part, the arch part comprises a first arch arm and a second arch arm which extend from the arch crown to the two sides, the lower end of the first arch arm is suspended, a rotating part is arranged on the upper portion of the second arch arm, and the lower end of the second arch arm extends to form a jacking part. The jacking part is located below the heavy hammer, the stress position of the steam exhaust lever is arranged on the first arch arm or the arch crown, and the stress position receives external driving force to drive the steam exhaust lever to rotate around the rotating part so as to jack the heavy hammer through the jacking part. The whole steam exhaust lever is of an arch structure, and the steam exhaust lever can better disperse and bear pressure, so that the stress uniformity and the deformation resistance of the steam exhaust lever are improved; and the relative height position of the stress position of the steam exhaust lever and the jacking part can be set as required, so that the application range is wider.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a pressure cooking appliance and a steam discharge device thereof. BACKGROUND

[0002] The existing pressure cooking appliance has high pressure in the interior after cooking is completed, and the cover cannot be opened until the pressure is reduced. The traditional pressure cooking appliance is usually provided with a steam discharge device on the cover of the pressure cooking appliance, which includes a steam discharge pipe, a weight blocking the steam discharge pipe, and a steam discharge lever. When cooking is completed or the pressure is reduced during cooking, the steam discharge lever is rotated by manually pressing a steam discharge button or by using an electromagnetic valve to push the steam discharge lever, a top rod is lifted, the weight is lifted by the top rod, the sealing state of the weight and the steam discharge pipe is broken, and the steam discharge function is realized.

[0003] However, the steam discharge lever of the traditional pressure cooking appliance is usually a lever connected by a straight rod structure. This structure has low force transmission efficiency and large loss of force in other directions, is labor-intensive, has poor stability, and when an electromagnetic valve or the like is used to drive the steam discharge lever, the performance requirement of the electromagnetic valve is high and the service life of the electromagnetic valve is seriously affected. Moreover, the space requirement scenario of the lever connected by the straight rod structure is single, and it is difficult to adapt to space scenarios with large height difference between the force application position and the force receiving position, resulting in product design limitations and space waste. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a pressure cooking appliance and a steam discharge device thereof, which can save labor, improve stability and deformation resistance, and adapt to space scenarios with large height difference between the force application position and the force receiving position, and have a wider application range.

[0005] The first aspect of the present application provides a steam discharge device of a pressure cooking appliance, which includes a steam discharge pipe, a weight blocking the steam discharge pipe, and a steam discharge lever. The steam discharge lever includes an arch portion, the arch portion includes first and second arch arms extending to two sides from an arch top, the lower end of the first arch arm is suspended, the upper part of the second arch arm is provided with a rotating portion, the lower end of the second arch arm extends to form a jacking portion, the jacking portion is located below the weight, the force receiving position of the steam discharge lever is located at the first arch arm or the arch top, and the force receiving position receives an external driving force to drive the steam discharge lever to rotate around the rotating portion to lift the weight by the jacking portion.

[0006] In some embodiments, the lower end of the second arch arm extends to the horizontal direction to form the jacking portion.

[0007] Alternatively, the lower end of the second arch arm extends downwardly relative to the horizontal direction to form the jacking portion, and the jacking portion is downwardly inclined at an angle smaller than the angle at which the lower end of the second arch arm is inclined downwardly relative to the upper end.

[0008] In some embodiments, the force receiving position is arranged at the first arch arm, the steam exhaust device comprises an electromagnetic valve having a valve rod, the valve rod is arranged downwardly relative to the horizontal direction, the valve rod is used to apply a downwardly inclined external driving force to the force receiving position, and the length of the electromagnetic valve along the extension direction of the valve rod is greater than the height of the arch top.

[0009] In some embodiments, the force receiving position is arranged at the lower portion of the first arch arm, the contact point between the valve rod and the force receiving position is point A, the rotation connecting point formed by the rotation portion is point B, the point A is lower than the point B, the line connecting the point A and the point B is upwardly inclined relative to the horizontal direction at an angle α, and the valve rod is downwardly inclined relative to the horizontal direction at an angle β satisfying 0° < β ≤ 90° - α.

[0010] In some embodiments, the force receiving position is arranged at the arch top, the steam exhaust device comprises an electromagnetic valve having a valve rod, the valve rod is arranged vertically, and the valve rod is used to apply a vertically downward external driving force to the force receiving position.

[0011] In some embodiments, a jacking rod is arranged between the jacking portion and the bottom of the weight, the jacking portion applies a jacking force to the jacking rod to jack up the weight through the jacking rod.

[0012] An elastic reset member is sleeved on the jacking rod, the elastic reset member is used to store elastic potential energy during the jacking of the jacking rod to drive the jacking rod and the steam exhaust lever to reset.

[0013] The second aspect of the present application provides a pressure cooking appliance, comprising a lid assembly, the lid assembly comprising a lid body and a steam exhaust device of the pressure cooking appliance according to any one of the above embodiments; wherein the lid body comprises an upper cover and an inner cover, the inner cover is arranged at the inner side of the upper cover, the steam exhaust pipe passes through the upper cover and the inner cover, the weight is arranged on the top of the steam exhaust pipe, and the rotation portion of the steam exhaust lever is rotationally connected with the upper cover.

[0014] In some embodiments, a mounting groove is formed on the upper cover, the mounting groove has an inclined support surface.

[0015] The steam exhaust device comprises an electromagnetic valve, which is installed in the installation groove and supported on the support surface, and has a valve rod, which is arranged to be inclined downward relative to the horizontal direction, and the force receiving position is arranged on the first arch arm, and the valve rod is used for applying an external driving force inclined downward to the force receiving position.

[0016] In some embodiments, a rotating support portion is arranged on the side of the upper cover away from the inner cover, the rotating portion is rotatably supported on the rotating support portion through a rotating shaft, the upper cover is formed with a first through hole and a second through hole, the lower part of the first arch arm is arranged in the first through hole, and the lower part of the second arch arm and the jacking portion pass through the second through hole and extend to the upper area of the inner cover.

[0017] In some embodiments, a water leakage hole is arranged on the groove bottom wall of the installation groove.

[0018] Compared with the prior art, the technical scheme provided in the application has at least the following advantages:

[0019] 1. The steam exhaust device of the pressure cooking appliance provided in the application, the steam exhaust lever comprises an arch portion, the arch portion comprises a first arch arm and a second arch arm which extend to two sides from an arch top respectively, the lower end of the first arch arm is suspended, the upper part of the second arch arm is arranged with a rotating portion, the lower end of the second arch arm extends to form a jacking portion, the jacking portion is arranged below the weight, and the force receiving position of the steam exhaust lever is arranged on the first arch arm or the arch top. In this way, when the force receiving position of the steam exhaust lever receives an external driving force, the steam exhaust lever can be rotated around the rotating portion, so that the weight is jacked up through the jacking portion, the sealing state of the weight and the steam exhaust pipe is broken, and the steam exhaust function is realized. The steam exhaust lever of the steam exhaust device adopts an arch structure. Compared with a traditional straight rod structure, when the steam exhaust lever receives an external driving force, the arch structure can better disperse and bear the pressure, so that the uniformity of the force received by the steam exhaust lever and the anti-deformation capability can be improved, so that effective force transmission is realized, the effect of saving labor and improving stability is realized. In addition, the relative height position of the force receiving position and the jacking portion of the steam exhaust lever can be set according to needs, so that the steam exhaust device can be well applied to a pressure cooking appliance in which the fixing position of the electromagnetic valve and the jacking position of the weight have a large height difference, and the application range is wider.

[0020] 2. The exhaust device includes a solenoid valve. The valve stem of the solenoid valve is inclined downward relative to the horizontal direction. The force-bearing position of the exhaust lever is located on the first arch arm. The valve stem applies a downward external driving force to the force-bearing position of the exhaust lever. Compared with setting the valve stem of the solenoid valve horizontally, the component of the external driving force applied by the valve stem to the force-bearing position of the exhaust lever on the power arm is larger. The exhaust lever rotates around the rotating part, and the lifting part lifts the counterweight with a greater force, thus achieving a more labor-saving effect. Under the same weight of the counterweight, a solenoid valve with a smaller actuation force can be selected, and the solenoid valve is smaller in size, thereby reducing the installation space of the solenoid valve on the top cover, which facilitates the internal space layout of the product.

[0021] 3. By forming a mounting groove on the top cover of the pressure cooking appliance, the mounting groove has an inclined support surface, so that the solenoid valve can be installed at an angle within the mounting groove. This allows the solenoid valve's push rod to apply a downward-sloping external driving force to the force-bearing position of the exhaust lever. A drainage hole is formed on the bottom wall of the mounting groove. When steam inside the top cover condenses at the solenoid valve, the condensate can flow out through the drainage hole, thereby reducing the risk of rusting of the solenoid valve and helping to extend its service life. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the steam exhaust device of the pressure cooking appliance described in the embodiments of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the exhaust lever of the exhaust device shown;

[0026] Figure 3 for Figure 1 The diagram shows the setting parameters of the exhaust device.

[0027] Figure 4 This is an exploded view of the lid assembly of the pressure cooking appliance described in the embodiments of this application;

[0028] Figure 5 for Figure 3 The diagram shows the assembly of the pot lid assembly, which is in a non-venting state.

[0029] Figure 6 As shown in Figure 5 the structure schematic view of the pot cover assembly in the exhaust state;

[0030] Figure 7 As shown in Figure 4 the top view structure schematic view of the upper cover of the pot cover assembly;

[0031] Figure 8 As shown in Figure 7 the partial enlarged structure schematic view of the D part.

[0032] Wherein, 100, the pot cover assembly;

[0033] 1, the exhaust pipe; 2, the weight; 3, the exhaust lever; 30, the arch part; 301, the arch top; 302, the first arch arm; 303, the second arch arm; 31, the rotating part; 32, the jacking part; 4, the rotating shaft; 5, the electromagnetic valve; 51, the valve rod; 6, the jacking rod; 7, the elastic reset member; 8, the inner cover; 9, the upper cover; 91, the mounting groove; 911, the support surface; 92, the rotating support part; 93, the first through hole; 94, the second through hole; 95, the water leakage hole; 10, the inner liner; 11, the handle; 111, the accommodating cavity; 12, the elastic sealing plug; 13, the exhaust cover. DETAILED DESCRIPTION

[0034] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some of the embodiments of the present application, not all the embodiments.

[0036] Referring to Figures 1 to 8 , some embodiments of the present application provide an exhaust device of a pressure cooking appliance and a pressure cooking appliance applying the exhaust device.

[0037] Specifically, the pressure cooking appliance can include a pot cover assembly 100 and a pot body assembly, the pot cover assembly 100 is openably and closably covered on the pot body assembly, and is jointly configured with the pot body assembly to form a cooking cavity; the exhaust device can be arranged on the pot cover assembly 100, and is used for exhausting steam and reducing pressure in the cooking cavity at the end of cooking or during cooking.

[0038] Referring to Figures 1 to 3As shown, some embodiments of the present application provide a steam exhaust device of a pressure cooking appliance, which comprises a steam exhaust pipe 1, a weight 2 sealing the steam exhaust pipe 1, and a steam exhaust lever 3.

[0039] Specifically, one end of the steam exhaust pipe 1 forms an inlet and is in communication with a cooking cavity, and the other end of the steam exhaust pipe 1 forms an outlet. In a normal state (a state without steam exhaust), the weight 2 seals the outlet. When steam exhaust is needed, an external driving force is applied to the steam exhaust lever 3 to lift the weight 2, so that the outlet is opened and in communication with the outside, thereby realizing the steam exhaust function.

[0040] The steam exhaust lever 3 comprises an arch portion 30, which comprises a first arch arm 302 and a second arch arm 303 extending to two sides from an arch top 301 respectively. The lower end of the first arch arm 302 is suspended, and the upper part of the second arch arm 303 is provided with a rotating portion 31. The lower end of the second arch arm 303 extends to form a lifting portion 32, which is located below the weight 2. The force receiving position of the steam exhaust lever 3 is located at the first arch arm 302 or the arch top 301. The force receiving position receives the external driving force to drive the steam exhaust lever 3 to rotate around the rotating portion 31, so as to lift the weight 2 through the lifting portion 32.

[0041] It should be noted that the terms "upper", "lower", and the like in the embodiments of the present application are described with reference to the state that the lid assembly 100 of the pressure cooking appliance is closed on the pot body assembly, and the pressure cooking appliance is horizontally placed on the desktop, which is only for the convenience of description, and is not used to limit the specific use state of the pressure cooking appliance.

[0042] The steam exhaust device of the pressure cooking appliance provided by the embodiments of the present application has the following advantages. The steam exhaust lever 3 has an overall arch structure, the lower end of the first arch arm 302 is suspended, and the upper part of the second arch arm 303 is provided with the rotating portion 31. The lower end of the second arch arm 303 extends to form the lifting portion 32. When the force receiving position (located at the first arch arm 302 or the arch top 301) of the steam exhaust lever 3 receives the external driving force, the steam exhaust lever 3 can rotate around the rotating portion 31, so as to lift the weight 2 through the lifting portion 32 of the steam exhaust lever 3. The sealing state of the weight 2 and the steam exhaust pipe 1 is broken, and the steam exhaust function is realized. The steam exhaust lever 3 adopts the arch structure. Compared with the traditional straight rod structure, when the steam exhaust lever 3 receives the external driving force, the arch structure can better disperse and bear the pressure, so as to improve the uniformity of the force received by the steam exhaust lever 3 and the anti-deformation ability, thereby realizing the effective transmission of force, saving labor, and improving stability.

[0043] In addition, the steam exhaust lever 3 adopts an arch structure, the lower end of the first arch arm 302 is suspended, the upper part of the second arch arm 303 is provided with a rotating part 31, and the lower end of the second arch arm 303 extends to form a jacking part 32. In this way, the length of the first arch arm 302 extending downward relative to the arch top 301 and the length of the second arch arm 303 extending downward relative to the arch top 301 can be set according to actual needs. The stress position of the steam exhaust lever 3 is located at the first arch arm 302 or the arch top 301, and the jacking part 32 of the steam exhaust lever 3 is located at the lower end of the second arch arm 303. Therefore, the relative height position of the stress position of the steam exhaust lever 3 and the jacking part 32 can be set according to needs, so that the steam exhaust device can be well applied to a pressure cooking appliance in which the fixed position of the electromagnetic valve 5 and the jacking position of the weight 2 have a large height difference, and the application range is wider.

[0044] Exemplarily, referring to FIGS. 1 to 3, Figure 5 and Figure 6 As shown, the steam exhaust device includes an electromagnetic valve 5 installed on the upper cover 9 of the pot cover assembly 100 of the pressure cooking appliance. The electromagnetic valve 5 is used to apply an external driving force to the stress position of the steam exhaust lever 3, and the jacking part 32 of the steam exhaust lever 3 is located below the weight 2 to apply a jacking force to the weight 2. In addition, the installation height position of the electromagnetic valve 5 is higher than the height position of the jacking part 32 of the steam exhaust lever 3, and there is a large height difference between the two. The steam exhaust lever with a traditional straight rod structure cannot be applied to a pressure cooking appliance with such design requirements. However, the steam exhaust device of the present application adopts an arch structure for the steam exhaust lever 3. The first arch arm 302 and the second arch arm 303 of the steam exhaust lever 3 both extend downward from the arch top 301, so that different parts of the steam exhaust lever 3 have a certain height difference. Therefore, the relative height position of the stress position of the steam exhaust lever 3 and the jacking part 32 can be set according to needs, so that the steam exhaust device can be well applied to a pressure cooking appliance in which the fixed position of the electromagnetic valve 5 and the jacking position of the weight 2 have a large height difference.

[0045] In some embodiments, the lower end of the second arch arm 303 extends horizontally to form the jacking part 32.

[0046] It should be noted that the "extending horizontally" in the above embodiments is described with reference to the state in which the pot cover assembly 100 of the pressure cooking appliance is in a non-steam exhaust state. In this state, the steam exhaust lever 3 is not subjected to an external driving force, and the jacking part 32 of the steam exhaust lever 3 is in an initial position with a relatively low height position. When the steam exhaust lever 3 is rotated around the rotating part 31 under the action of an external driving force, the jacking part 32 can be rotated upward from the horizontal direction, that is, the height position of the jacking part 32 is raised, so as to apply an upward jacking force to the weight 2.

[0047] In other embodiments, referring to FIGS. 4 to 6, Figure 5As shown, the lower end of the second arch arm 303 extends downward relative to the horizontal direction to form a jacking portion 32, and the downward inclination angle of the jacking portion 32 is smaller than the downward inclination angle of the lower end of the second arch arm 303 relative to the upper end.

[0048] It should be noted that the above-mentioned embodiment "extends downward relative to the horizontal direction" is described with reference to the state that the pot cover assembly 100 of the pressure cooking appliance is in a non-steam exhaust state, in which state the steam exhaust lever 3 is not subjected to external driving force, and the jacking portion 32 of the steam exhaust lever 3 is in an initial position with a relatively low height position. When the steam exhaust lever 3 is rotated around the rotating portion 31 under the action of external driving force, the jacking portion 32 can gradually rotate upward from the downward inclination state, that is, the height position of the jacking portion 32 is raised, thereby exerting upward jacking force on the weight 2.

[0049] In order to ensure the stability of the jacking portion 32 after jacking up the weight 2, the jacking portion 32 can be arranged to be in a horizontal state after jacking up the weight 2, so that the jacking force exerted by the jacking portion 32 on the weight 2 is all vertically upward without components in other directions, thereby maintaining the stability of the jacking portion 32 after jacking up the weight 2.

[0050] In some embodiments, referring to Figure 1 and Figure 3 As shown, the force receiving position of the steam exhaust lever 3 is arranged at the first arch arm 302, the steam exhaust device includes an electromagnetic valve 5, the electromagnetic valve 5 has a valve rod 51, the valve rod 51 is arranged downward relative to the horizontal direction, and the valve rod 51 is used to exert downward inclined external driving force on the force receiving position.

[0051] In this way, compared with horizontally arranging the valve rod 51 of the electromagnetic valve 5, the component of the external driving force exerted by the valve rod 51 on the force receiving position of the steam exhaust lever 3 on the power arm is larger, the steam exhaust lever 3 rotates around the rotating portion 31, the force exerted by the jacking portion 32 on the weight 2 is larger, thereby achieving the effect of saving labor; under the same weight of the weight 2, a smaller push electromagnetic valve 5 can be selected for the electromagnetic valve 5, the volume of the electromagnetic valve 5 is smaller, thereby reducing the installation space of the electromagnetic valve 5 on the upper cover 9, and then facilitating the internal space layout of the product.

[0052] In some embodiments, referring to Figure 1 and Figure 3 As shown, the force receiving position of the steam exhaust lever 3 is arranged at the lower part of the first arch arm 302, the valve rod 51 of the electromagnetic valve 5 contacts the lower part of the first arch arm 302 to exert external driving force on the steam exhaust lever 3; the rotating portion 31 of the steam exhaust lever 3 is provided with a rotating shaft 4, the steam exhaust lever 3 rotates around the rotating shaft 4 under the action of the external driving force exerted by the electromagnetic valve 5; the jacking portion 32 of the steam exhaust lever 3 directly or indirectly contacts the weight 2 to exert upward jacking force on the weight 2.

[0053] In some embodiments, referring to Figure 1 and Figure 3 , a jacking rod 6 is arranged between the jacking part 32 and the bottom of the weight 2, the jacking part 32 applies a jacking force to the jacking rod 6 to jack up the weight 2 through the jacking rod 6, and an elastic reset member 7 is sleeved on the jacking rod 6, which is used to store elastic potential energy during the jacking of the jacking rod 6 to drive the jacking rod 6 and the exhaust lever 3 to reset.

[0054] When exhaust is needed, the valve rod 51 of the electromagnetic valve 5 applies an external driving force to the first arch arm 302 of the exhaust lever 3, so that the exhaust lever 3 rotates around the rotating shaft 4, the jacking part 32 at the lower end of the second arch arm 303 of the exhaust lever 3 moves upward and applies an upward jacking force to the jacking rod 6, so that the jacking rod 6 moves upward and jacks up the weight 2, so that the sealing state of the weight 2 and the exhaust pipe 1 is broken, realizing the exhaust function; at the same time, the elastic reset member 7 sleeved on the jacking rod 6 stores elastic potential energy during the jacking of the jacking rod 6. When the exhaust is over, the valve rod 51 of the electromagnetic valve 5 withdraws the external driving force applied to the exhaust lever 3, the elastic potential energy stored by the elastic reset member 7 is released, driving the jacking rod 6 to move downward, the jacking rod 6 drives the exhaust lever 3 to reset, and the weight 2 re-seals the exhaust pipe 1 under the action of its own gravity. In specific implementation, the elastic reset member 7 can be a spring.

[0055] In some embodiments, referring to Figure 1 and Figure 3 , the contact point of the valve rod 51 and the stress position is point A (or the electromagnetic valve fulcrum is point A), the rotating connection point formed by the rotating part 31 is point B (or the rotating shaft fulcrum is point B), A is lower than B, the line direction of A and B is the power arm direction of the exhaust lever 3, the distance from A to B is the power arm L1 of the exhaust lever 3, the angle of the line connecting A and B relative to the horizontal direction is α, the angle of the valve rod 51 relative to the horizontal direction is β, and the angle between the valve rod 51 and the direction perpendicular to the power arm is γ, γ = 90°-α-β.

[0056] The contact point of the jacking part 32 and the jacking rod 6 is point C (or the jacking rod fulcrum is point C), C is lower than B, the line direction of C and B is the resistance arm direction of the exhaust lever 3, the distance from C to B is the resistance arm L2 of the exhaust lever 3, and the angle between the jacking rod 6 and the direction perpendicular to the resistance arm is θ.

[0057] The electromagnetic valve 5 releases the force F1 at point A, the component of the electromagnetic valve 5 in the direction perpendicular to the power arm L1 is F2, F2=F1xcosγ, the force F3 is obtained by the top rod 6 in the direction perpendicular to the resistance arm L2, that is, the component F4 of the top rod 6 in the upward direction is F3xcosθ; according to the lever balance principle: F2xL1=F3xL2, then F4=F1xcosγx(L1 / L2)xcosθ.

[0058] It can be seen that the electromagnetic valve 5 is horizontally installed, the included angle γ is large, the component in the direction perpendicular to the power arm L1 is small, that is, F2 is small, and thus the component F4 of the top rod 6 in the upward direction is small; with the inclined installation of the electromagnetic valve 5, the included angle γ is small, the component in the direction perpendicular to the power arm L1 is large, that is, F2 is large, and thus the component F4 of the top rod 6 in the upward direction is large; when the electromagnetic valve 5 is inclined to the direction perpendicular to the power arm L1, that is, the included angle γ=0, that is, the angle β of the valve rod 51 relative to the horizontal direction is inclined downward by 90°-α, the component F4 of the top rod 6 in the upward direction obtains the maximum value.

[0059] That is, when the force direction of the valve rod 51 of the electromagnetic valve 5 to the exhaust lever 3 is perpendicular to the power arm L1, that is, the angle β of the valve rod 51 relative to the horizontal direction is inclined downward by 90°-α, the most labor-saving. When the angle β of the valve rod 51 relative to the horizontal direction is inclined downward by 90°-α, with the further increase of the downward inclination angle of the valve rod 51, the electromagnetic valve 5 gradually changes from the most labor-saving state to the gradually labor-consuming state, and the angle β of the valve rod 51 relative to the horizontal direction is too large, which is not conducive to the installation of the electromagnetic valve 5 on the upper cover 9, and the height of the electromagnetic valve 5 in the vertical direction is high, which is also not conducive to the light and thin design of the product.

[0060] Therefore, in the specific implementation, the angle β of the valve rod 51 relative to the horizontal direction can be limited to 0°<β≤90°-α, which not only makes the operation of lifting the weight 2 more labor-saving, but also is conducive to the installation of the electromagnetic valve 5 on the upper cover 9. Exemplarily, the value of β can be 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, etc., which can be reasonably set according to the actual situation. Of course, according to the design needs, the angle β of the valve rod 51 relative to the horizontal direction can also be set to be greater than 90°-α.

[0061] It should be noted that the force receiving position of the steam exhaust lever 3 is not limited to being arranged on the first arch arm 302, and can also be arranged on the arch top 301. In some embodiments, the force receiving position of the steam exhaust lever 3 is arranged on the arch top 301, and the steam exhaust device includes an electromagnetic valve 5, the electromagnetic valve 5 has a valve rod 51 arranged vertically, and the valve rod 51 is used to apply an external driving force vertically downward to the force receiving position. In this way, compared with arranging the force receiving position of the steam exhaust lever 3 on the first arch arm 302, the electromagnetic valve 5 can be directly used to apply an external driving force vertically downward to the steam exhaust lever 3, and compared with arranging the electromagnetic valve 5 horizontally, the effect of saving labor can also be achieved.

[0062] Referring to Figures 4 to 8 It should be noted that the force receiving position of the steam exhaust lever 3 is not limited to being arranged on the first arch arm 302, and can also be arranged on the arch top 301. In some embodiments, the force receiving position of the steam exhaust lever 3 is arranged on the arch top 301, and the steam exhaust device includes an electromagnetic valve 5, the electromagnetic valve 5 has a valve rod 51 arranged vertically, and the valve rod 51 is used to apply an external driving force vertically downward to the force receiving position. In this way, compared with arranging the force receiving position of the steam exhaust lever 3 on the first arch arm 302, the electromagnetic valve 5 can be directly used to apply an external driving force vertically downward to the steam exhaust lever 3, and compared with arranging the electromagnetic valve 5 horizontally, the effect of saving labor can also be achieved.

[0063] It should be noted that the upper cover 9 is generally made of plastic, and the upper cover 9 can serve as a mounting member for some components (such as the steam exhaust lever 3), and the upper cover 9 can also form part of the appearance of the lid assembly 100. The inner cover 8, as a pressure bearing member of the lid assembly 100, is generally made of metal and can also be referred to as a pressure bearing cover or a steel cover. In addition, the lid assembly 100 can also include an inner liner 10 arranged between the upper cover 9 and the inner cover 8, the inner liner 10 is generally made of plastic, and the hinged shaft for connecting the lid assembly 100 and the pot assembly can be arranged on the inner liner 10.

[0064] Specifically, the steam exhaust lever 3 has an overall arch structure, and the steam exhaust lever 3 includes an arch-up portion 30, the arch-up portion 30 includes a first arch arm 302 and a second arch arm 303 extending to both sides from an arch top 301 respectively, the lower end of the first arch arm 302 is suspended, the upper part of the second arch arm 303 is provided with a rotating portion 31, the steam exhaust lever 3 is rotatably connected with the upper cover 9 through the rotating portion 31, the lower end of the second arch arm 303 extends to form a jacking portion 32, the jacking portion 32 is located below the weight 2, and the force receiving position of the steam exhaust lever 3 is arranged on the first arch arm 302 or the arch top 301. In this way, when the force receiving position of the steam exhaust lever 3 receives an external driving force, the steam exhaust lever 3 can be rotated relative to the upper cover 9 about the rotating portion 31, so that the jacking portion 32 of the steam exhaust lever 3 jacks up the weight 2, so that the sealing state of the weight 2 and the steam exhaust pipe 1 is broken, and the steam exhaust function is realized.

[0065] The pressure cooking utensil provided by the embodiments of the present application adopts an arch-shaped structure for the steam exhaust lever 3, compared with the traditional straight rod structure, when the steam exhaust lever 3 is subjected to an external driving force, the arch-shaped structure can better disperse and bear the pressure, thereby improving the uniformity of the force borne by the steam exhaust lever 3 and the anti-deformation capability, thereby avoiding the risk of fatigue fracture of the steam exhaust lever 3 during long-term use. In addition, the steam exhaust lever 3 adopts an arch-shaped structure, the length of the first arch arm 302 extending downward relative to the arch top 301 and the length of the second arch arm 303 extending downward relative to the arch top 301 can be set according to actual needs, thereby the relative height position of the force bearing position of the steam exhaust lever 3 and the jacking part 32 can be set as needed, thereby the pressure cooking utensil with a large height difference between the force bearing position of the steam exhaust lever 3 and the jacking position of the weight 2 can be well applied, and the application range is wider.

[0066] In some embodiments, referring to Figure 5 and Figure 6 , the steam exhaust device comprises an electromagnetic valve 5, the electromagnetic valve 5 is arranged on the upper cover 9, and the electromagnetic valve 5 is used for applying an external driving force to the steam exhaust lever 3.

[0067] In some embodiments, referring to Figure 7 and Figure 8 , the upper cover 9 is formed with a mounting groove 91, the mounting groove 91 has a support surface 911 arranged obliquely, the electromagnetic valve 5 is mounted in the mounting groove 91 and supported on the support surface 911, the electromagnetic valve 5 has a valve rod 51, the valve rod 51 is arranged obliquely downward relative to the horizontal direction, the force bearing position of the steam exhaust lever 3 is arranged at the first arch arm 302, and the valve rod 51 is used for applying an obliquely downward external driving force to the force bearing position of the steam exhaust lever 3.

[0068] In this way, the oblique installation of the electromagnetic valve 5 on the upper cover 9 is achieved, compared with the horizontal installation of the electromagnetic valve 5 on the upper cover 9, the valve rod 51 of the electromagnetic valve 5 can be used to apply an obliquely downward external driving force to the force bearing position of the steam exhaust lever 3, so that the component of the external driving force on the power arm perpendicular to the steam exhaust lever 3 is increased, thereby the jacking component of the jacking part 32 of the steam exhaust lever 3 on the weight 2 is increased, and more labor is saved.

[0069] Preferably, the length of the electromagnetic valve 5 of the present embodiment is greater than the height of the arch top 301 along the extension direction of the valve rod 51, and the structure is arranged in cooperation with the oblique arrangement of the valve rod 51 relative to the horizontal direction, so that the steam exhaust lever 3 can be installed in a smaller space, and the layout of the steam exhaust lever 3 and the electromagnetic valve 5 in a narrow space is facilitated.

[0070] In some embodiments, referring to Figure 7 and Figure 8As shown, the side of the upper cover 9 facing away from the inner cover 8 is provided with a rotating support part 92, and the rotating part 31 of the steam exhaust lever 3 is rotatably supported on the rotating support part 92 through the rotating shaft 4, so that the steam exhaust lever 3 can rotate up and down relative to the upper cover 9 around the rotating shaft 4.

[0071] Continuing to refer to Figure 7 and Figure 8 As shown, the upper cover 9 is formed with a first through hole 93 and a second through hole 94, specifically, the first through hole 93 and the second through hole 94 are respectively located on the two sides of the rotating support part 92; referring to Figure 5 and Figure 6 As shown, the lower part of the first arch arm 302 is arranged in the first through hole 93, so as to provide the first arch arm 302 with installation and movement space by the first through hole 93, so that when the electromagnetic valve 5 applies an external driving force to the first arch arm 302, the lower part of the first arch arm 302 can move in the first through hole 93; the lower part of the second arch arm 303 and the jacking part 32 pass through the second through hole 94 and extend to the upper area of the inner cover 8, so as to reduce the height position of the jacking part 32, so that the jacking part 32 can extend below the weight 2, thereby applying an upward jacking force to the weight 2.

[0072] In some embodiments, referring to Figure 5 and Figure 6 As shown, a jacking rod 6 is arranged between the jacking part 32 and the bottom of the weight 2, when steam exhaust is needed, the jacking part 32 applies a jacking force to the jacking rod 6, so as to lift the weight 2 through the jacking rod 6, so that the sealing state of the weight 2 and the steam exhaust pipe 1 is broken, realizing the steam exhaust function; the jacking rod 6 is sleeved with an elastic reset member 7, the elastic reset member 7 is used to store elastic potential energy during the jacking of the jacking rod 6, when steam exhaust is not needed, the elastic reset member 7 releases the elastic potential energy, so as to drive the jacking rod 6 and the steam exhaust lever 3 to reset, and the weight 2 re-seals the steam exhaust pipe 1 under the action of its own gravity.

[0073] In some embodiments, referring to Figure 5 and Figure 6 As shown, the pot cover assembly 100 of the pressure cooking utensil further comprises a handle 11 and a face cover, the face cover is installed on the upper cover 9, so as to cover the steam exhaust lever 3, the electromagnetic valve 5 and other structures installed on the upper cover 9, the face cover can be used as a part of the appearance surface of the pot cover assembly 100; the handle 11 is installed on the face cover, the handle 11 is formed with a containing cavity 111, the upper part of the steam exhaust pipe 1 is located in the containing cavity 111, and the weight 2 is located in the containing cavity 111 and is pressed on the top of the steam exhaust pipe 1. In this way, the weight 2 is built-in in the containing cavity 111 formed on the handle 11. The top of the containing cavity 111 is provided with a steam exhaust cover 13, and the steam exhaust cover 13 is formed with a steam exhaust hole communicating with the containing cavity 111.

[0074] In some embodiments, referring to Figure 5 and Figure 6As shown, the top rod 6 is movably mounted at the outer bottom of the handle 11, the elastic reset member 7 is supported between the top rod 6 and the outer bottom of the handle 11, the bottom of the handle 11 is provided with a mounting hole in communication with the accommodating cavity 111, the top of the top rod 6 extends into the accommodating cavity 111 through the mounting hole, the bottom of the accommodating cavity 111 is provided with an elastic sealing plug 12, the elastic sealing plug 12 covers the mounting hole and is arranged between the top of the top rod 6 and the weight 2, and when the top rod 6 is lifted, the partial area of the elastic sealing plug 12 is moved upward to indirectly apply a lifting force to the weight 2 through the elastic sealing plug 12.

[0075] Referring to Figure 5 As shown, the pot cover assembly 100 is in a non-steam exhaust state, in which the electromagnetic valve 5 does not apply an external driving force to the steam exhaust lever 3, and the weight 2 blocks the steam exhaust pipe 1 under the action of its own gravity. Figure 6 As shown, the pot cover assembly 100 is in a steam exhaust state, in which the electromagnetic valve 5 applies an external driving force to the steam exhaust lever 3, the steam exhaust lever 3 rotates up and down about the rotating shaft 4 relative to the upper cover 9, the lifting part 32 of the steam exhaust lever 3 applies an upward force to the top rod 6, the top rod 6 moves upward and lifts the weight 2, so that the sealing state between the weight 2 and the steam exhaust pipe 1 is broken, the steam in the cooking cavity is discharged through the steam exhaust pipe 1, and finally discharged through the steam exhaust hole of the steam exhaust cover 13. Figure 6 The steam flow direction is indicated by an arrow.

[0076] In some embodiments, as shown in Figure 7 and Figure 8 As shown, the upper cover 9 is provided with a mounting groove 91 for mounting the electromagnetic valve 5, and the groove bottom wall of the mounting groove 91 is formed with a water leakage hole 95. In this way, when the steam inside the upper cover 9 condenses at the electromagnetic valve 5, the condensed water can flow out from the water leakage hole 95, thereby reducing the risk of rusting of the electromagnetic valve 5 and facilitating the extension of the service life of the electromagnetic valve 5.

[0077] It should be noted that, in this document, relational terms such as“first” and“second”, and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms“comprises”,“comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase“comprising a” does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0078] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications to the description will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other implementations without departing from the spirit or scope of the application. Accordingly, the application is not intended to be limited to the embodiments described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steam exhaust device of a pressure cooking appliance, comprising a steam exhaust pipe, a weight blocking the steam exhaust pipe, a steam exhaust lever, characterized in that, The steam exhaust lever comprises an arch portion, the arch portion comprises a first arch arm and a second arch arm extending to two sides respectively from an arch top, a lower end of the first arch arm is suspended, an upper part of the second arch arm is provided with a rotating portion, a lower end of the second arch arm extends to form a jacking portion, the jacking portion is located below the heavy hammer, a stress position of the steam exhaust lever is located at the first arch arm or the arch top, the stress position receives an external driving force to drive the steam exhaust lever to rotate around the rotating portion, so as to jack up the heavy hammer through the jacking portion.

2. The steam discharging device of a pressure cooking appliance according to claim 1, characterized in that, The lower end of the second arch arm extends to the horizontal direction to form the jacking portion; Alternatively, the lower end of the second arch arm extends downwardly relative to the horizontal direction to form the jacking portion, and an angle of the jacking portion downwardly inclining is smaller than an angle of the lower end of the second arch arm downwardly inclining relative to the upper end.

3. The steam discharging device of a pressure cooking appliance according to claim 1, characterized in that, The stress position is located at the first arch arm, the steam exhaust device comprises an electromagnetic valve, the electromagnetic valve has a valve rod, the valve rod is arranged downwardly inclined relative to the horizontal direction, the valve rod is used for applying the external driving force downwardly inclined to the stress position, and along an extension direction of the valve rod, a length of the electromagnetic valve is greater than a height of the arch top.

4. The steam discharging device of a pressure cooking appliance according to claim 3, characterized in that, The stress position is located at a lower part of the first arch arm, a contact point of the valve rod and the stress position is point A, a rotating connection point formed by the rotating portion is point B, the point A is lower than the point B, an angle of a line connecting the point A and the point B upwardly inclining relative to the horizontal direction is α, and an angle β of the valve rod downwardly inclining relative to the horizontal direction satisfies 0°<β≤90°-α.

5. The steam discharging device of a pressure cooking appliance according to claim 1, characterized in that, The stress position is located at the arch top, the steam exhaust device comprises an electromagnetic valve, the electromagnetic valve has a valve rod, the valve rod is arranged vertically, and the valve rod is used for applying the external driving force vertically downward to the stress position.

6. The steam discharging device of a pressure cooking appliance according to claim 1, characterized in that, A jacking rod is arranged between the jacking portion and a bottom of the heavy hammer, the jacking portion applies a jacking force to the jacking rod to jack up the heavy hammer through the jacking rod; An elastic reset member is sleeved on the jacking rod, the elastic reset member is used for storing elastic potential energy in a jacking process of the jacking rod to drive the jacking rod and the steam exhaust lever to reset.

7. A pressure cooking appliance comprising a lid assembly, characterized in that, The pot cover assembly comprises a pot cover body and the steam exhaust device of the pressure cooking utensil as claimed in any one of claims 1 to 6; wherein the pot cover body comprises an upper cover and an inner cover, the inner cover is arranged at an inner side of the upper cover, the steam exhaust pipe passes through the upper cover and the inner cover, the heavy hammer is pressed on a top of the steam exhaust pipe, and the rotating portion of the steam exhaust lever is rotationally connected with the upper cover.

8. The pressure cooking appliance of claim 7, wherein, An installation groove is formed on the upper cover, the installation groove has a support surface arranged inclinedly; The steam exhaust device comprises an electromagnetic valve, the electromagnetic valve is installed in the installation groove and supported on the support surface, the electromagnetic valve has a valve rod, the valve rod is arranged downwardly inclined relative to the horizontal direction, the stress position is located at the first arch arm, and the valve rod is used for applying the external driving force downwardly inclined to the stress position.

9. The pressure cooking appliance of claim 8, wherein, The upper cover is provided with a rotating support part on the side opposite to the inner cover, the rotating part is rotatably supported on the rotating support part through a rotating shaft, the upper cover is formed with a first through hole and a second through hole, the lower part of the first arch arm is arranged in the first through hole, and the lower part of the second arch arm and the jacking part pass through the second through hole and extend to the upper area of the inner cover.

10. The pressure cooker according to claim 8, characterized in that The bottom wall of the mounting groove is formed with a water leakage hole.

Images