Steam valve and cooking electric appliance

Abstract

The utility model discloses a steam valve and a cooking electric appliance, which belong to the field of cooking utensils, and comprise an upper valve seat, a lower valve seat and a valve core, the upper valve seat is sleeved on the lower valve seat, a cavity is formed between the upper valve seat and the lower valve seat, the valve core is movably connected in the cavity, the lower valve seat is provided with an air inlet nozzle and an air inlet hole, and the air inlet hole is communicated with the air inlet nozzle. The valve element is provided with a first exhaust hole, a second exhaust hole and a plunger, the plunger is slidably connected to the air inlet nozzle, the first exhaust hole penetrates through the side wall of the valve element to be communicated with the external environment, the second exhaust hole penetrates through the top of the valve element to be communicated with the external environment, and the air inlet is communicated with the second exhaust hole. The air inlet nozzle can be communicated with the first exhaust hole and the second exhaust hole respectively, the plunger closes the exhaust nozzle at low pressure and opens the exhaust nozzle at high pressure for pressure relief, and the second exhaust hole and the air inlet hole are communicated at low pressure, so that steam in the pot can be discharged outwards at micro pressure, the pressure in the pot is kept stable, and food essence in the pot is prevented from leaking.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cooking utensils, and particularly relates to a steam valve and a steaming and boiling electric appliance. BACKGROUND

[0002] A cooking utensil such as an electric rice cooker generates a large amount of steam during the cooking process. In order to guide the steam to be discharged to the outside of the electric rice cooker, a steam valve for allowing the steam to be freely discharged is usually provided on the upper cover of the electric rice cooker. The steam valve can be opened to release pressure when the pressure is high, and can be closed to prevent steam from leaking out when the pressure in the pot is low. However, the existing steam valve used in a cooking utensil cannot maintain a micro-pressure state for a long time because the pressure is discharged too slowly, which causes the food to be steamed to be ejected outward along with the steam, and the essence of the food cannot be locked.

[0003] A steam valve disclosed in a patent application with the publication number CN104433820A includes a steam valve base and a steam valve upper cover installed on the upper part of the steam valve base. The lower part of the steam valve base is provided with a steam outlet platform, and the steam outlet platform is provided with a first steam outlet hole. The outer side wall of the steam valve base is provided with a rotating handle, and the rotating handle extends in a direction away from the steam outlet platform. The steam valve directly discharges steam from the steam outlet platform, and the steam discharge is easily affected by the pressure in the pot, which cannot guarantee the stable state of the food in the pot, and causes the essence of the food to be easily ejected along with the steam. SUMMARY

[0004] One of the purposes of the utility model is to provide a steam valve, which solves the problem that the existing steam valve has a sudden change in discharge pressure and cannot realize stable micro-pressure discharge.

[0005] To achieve the above-mentioned purposes of the utility model, the technical solutions adopted by the utility model are as follows:

[0006] A steam valve includes an upper valve seat, a lower valve seat, and a valve core. The upper valve seat is sleeved on the lower valve seat to form a cavity between the upper valve seat and the lower valve seat. The valve core is movably connected in the cavity. The lower valve seat is provided with an air inlet nozzle and an air inlet hole. The valve core is provided with a first air outlet hole, a second air outlet hole, and a plunger. The plunger is slidably connected to the air inlet nozzle. The first air outlet hole penetrates the side wall of the valve core to communicate with the external environment. The second air outlet hole penetrates the top of the valve core to communicate with the external environment. The air inlet hole communicates with the second air outlet hole. The air inlet nozzle can communicate with the first air outlet hole and the second air outlet hole. The plunger closes the air outlet nozzle at low pressure and opens the air outlet nozzle at high pressure to release pressure. The second air outlet hole and the air inlet hole are connected at low pressure, which allows the steam in the pot to be discharged outward at a micro-pressure to keep the pressure in the pot stable and prevent the essence of the food in the pot from leaking out.

[0007] Further, the valve core further comprises a recess, the recess is arranged on the lower top wall of the valve core, and the recess is opposite to the air inlet hole, and there is a gap between the air inlet hole and the valve core, so that steam is discharged outward when the micro-pressure, and the steam discharge amount is limited.

[0008] Further, the valve core further comprises a ring wall, the ring wall is arranged to extend from the side wall of the valve core and surround the plunger, and when the valve core blocks the air inlet nozzle, the ring wall forms a cover at the first exhaust hole, so that steam is prevented from running out of the first exhaust hole when the low-pressure.

[0009] Preferably, the upper valve seat is clamped with the lower valve seat, a recess is arranged on the inner side wall of the upper valve seat, a protrusion is arranged on the outer side wall of the lower valve seat, the protrusion falls into the recess, and the steam valve is convenient to assemble.

[0010] Preferably, a water collecting cover is further arranged below the lower valve seat, and a downward part of the water collecting cover is arranged to be contracted to the center, so that the running-out steam is collected and returned to the pot, and the food essence is prevented from leaking out.

[0011] More preferably, the upper valve seat comprises a third exhaust hole, the third exhaust hole is arranged to penetrate the top wall of the upper valve seat, and steam is discharged to the external environment through the third exhaust hole.

[0012] More preferably, the upper valve seat further comprises a limiting column and a limiting protrusion, the limiting column and the limiting protrusion are arranged on the top of the upper valve seat, and the limiting protrusion is arranged on both sides of the limiting column, so that the position of the upper valve seat is limited, and the shaking during exhaust is prevented.

[0013] More preferably, a sealing piece is further arranged between the inner wall of the upper valve seat and the outer wall of the lower valve seat, so that the steam is prevented from overflowing between the upper valve seat and the lower valve seat.

[0014] More preferably, the second exhaust hole is opposite to the air inlet hole, the steam discharge path is short, and the exhaust efficiency is high.

[0015] One of the purposes of the utility model is to provide a cooking electric appliance, which solves the problem that the cooking electric appliance cannot effectively lock the food essence in the pot during cooking.

[0016] In order to achieve the above-mentioned purposes of the utility model, the technical scheme adopted by the utility model is as follows:

[0017] A cooking electric appliance comprises the steam valve.

[0018] The utility model has the advantages that:

[0019] (1) the upper valve seat and the lower valve seat of the steam valve form a cavity, the valve core is movably connected in the cavity, the lower valve seat is provided with an air inlet nozzle and an air inlet hole, the valve core is provided with a first exhaust hole, a second exhaust hole and a plunger, the plunger is slidably connected on the upper air inlet nozzle, can block the air inlet nozzle at low pressure, is pushed open by the high pressure in the pot at high pressure to speed up the exhaust, is used for controlling the pressure of the steam in the pot not to be too high, the air inlet hole is communicated with the second exhaust hole, is used for connecting the inside of the pot with the outside environment, can carry out exhaust at the micro pressure state, prevents the steam from overflowing too fast and taking out the food essence in the pot, and can also expand the exhaust amount after the valve core rises in cooperation with the air inlet nozzle, the function of increasing the high pressure exhaust amount is played.

[0020] (2) the upper valve seat of the steam valve is provided with a limiting column and a limiting convex, the limiting column is matched with the through hole on the pot cover, the limiting convex and the limiting column fix the relative position of the upper valve seat and the pot cover, prevent the whole steam valve from shaking under the impact when exhausting, and the noise of the exhaust is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model provides a top view of steam valve;

[0022] Figure 2 For Figure 1 The section view along A-A line;

[0023] Figure 3 For Figure 1 The section view along B-B line;

[0024] Figure 4 The utility model provides the explosion drawing of steam cooking electric appliance;

[0025] Figure 5 The utility model provides the front view of steam cooking electric appliance;

[0026] Figure 6 For Figure 5 The section view along C-C line;

[0027] Figure 7 For Figure 6 The local amplification drawing of upper D part.

[0028] REFERENCE SIGNS:

[0029] 1. Pot lid; 11. Through hole; 2. Pot inner liner; 3. Outer shell; 4. Steam valve; 41. Water collection cover; 42. Upper valve seat; 421. Limiting post; 422. Third vent; 423. Limiting protrusion; 424. Bracket; 425. Groove; 43. Lower valve seat; 431. Air inlet; 432. Air inlet; 433. Vent chamber; 434. Vent passage; 435. Protrusion; 44. Valve core; 441. First vent; 442. Second vent; 443. Plunger; 444. Recess; 445. Annular wall; 45. Seal. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] Example 1

[0032] like Figures 1-7 As shown, this embodiment discloses a steam valve 4, including an upper valve seat 42, a lower valve seat 43, and a valve core 44. The upper valve seat 42 is sleeved on the lower valve seat 43, forming a cavity between the upper valve seat 42 and the lower valve seat 43. The valve core 44 is movably connected within the cavity. The lower valve seat 43 is provided with an air inlet 431 and an air inlet hole 432. The valve core 44 is provided with a first exhaust hole 441, a second exhaust hole 442, and a plunger 443. The plunger 443 is slidably connected to the air inlet 431 and is used to open the air inlet 431 to achieve exhaust under a set high pressure. The first exhaust hole 441 penetrates the side wall of the valve core 44 to connect to the external environment, and the second exhaust hole... The valve core 44 is connected to the external environment through the top of the valve core 44. The second exhaust port 442 is connected to the external environment through the top of the valve core 44. The air inlet 432 is connected to the second exhaust port 442. The air inlet 431 can be connected to the first exhaust port 441 and the second exhaust port 442 respectively. The valve core 44 is opened under the action of high-pressure steam. The steam is discharged outward through the first exhaust port 441 and the second exhaust port 442 at the same time. The amount of steam discharged is large, which can achieve the function of rapid exhaust and maintain the stability of the pressure inside the pot. Under low pressure, the steam is discharged through the first exhaust port 441 and the air inlet 432 to achieve the effect of micro-pressure exhaust and prevent the essence of the food inside the pot from leaking out.

[0033] Preferably, the end of the plunger 443 towards the air inlet nozzle 431 is spherical, the plunger 443 falls into the air inlet nozzle 431, the air inlet nozzle 431 is closed, the low-pressure steam is prevented from entering, the diameter of the part of the air inlet nozzle 431 overlapping the plunger 443 is larger than the rest of the air inlet nozzle 431, after the plunger 443 is pushed open by high-pressure steam, steam can flow quickly, which plays a role in accelerating the exhaust.

[0034] Further, the air inlet nozzle 431 is provided with an exhaust cavity 433 at the outlet of the valve core 44, the diameter of the exhaust cavity 433 is larger than the diameter of the air inlet nozzle 431, which expands the steam exhaust capacity.

[0035] Further, the valve core 44 further comprises a recess 444, the recess 444 is arranged on the lower top wall of the valve core 44, and the recess 444 is opposite to the air inlet hole 432, a space is provided between the end face of the recess 444 and the inner wall of the lower valve seat 43, which provides sufficient space for the passage of steam, and the steam can be stably discharged outward when the valve core 44 is in the closed and rising state.

[0036] Preferably, the upper valve seat 42 is clamped with the lower valve seat 43, a groove 425 is arranged on the inner side wall of the upper valve seat 42, a protruding part 435 is arranged on the outer side wall of the lower valve seat 43, the protruding part 435 falls into the groove 425, which is used to limit the shaking between the upper valve seat 42 and the lower valve seat 43, and maintain the stability of the entire steam valve 4 when it is impacted by steam.

[0037] More preferably, the valve core 44 further comprises a ring wall 445, the ring wall 445 is arranged to extend from the side wall of the valve core 44 and surround the plunger 443, when the valve core 44 blocks the air inlet nozzle 431, the ring wall 445 forms a cover at the first exhaust hole 441, which prevents steam from escaping from the first exhaust hole 441, in addition, the ring wall 445 is in contact with the inner wall of the lower valve seat 43, which plays a guiding role and prevents the valve core 44 from deviating.

[0038] Preferably, the upper valve seat 42 comprises a third exhaust hole 422, the third exhaust hole 422 is arranged to penetrate the top wall of the upper valve seat 42.

[0039] More preferably, the upper valve seat 42 further comprises a limiting column 421 and a limiting protrusion 423, the limiting column 421 and the limiting protrusion 423 are arranged on the top of the upper valve seat 42, and the limiting protrusion 423 is arranged on both sides of the limiting column 421, the limiting column 421 falls into the through hole 11 of the pot cover 1, and the limiting protrusion 423 is clamped with the edge extension of the through hole 11, which limits the movement of the upper valve seat 42, so that the direction of steam exhaust is stable and convenient to install.

[0040] The side wall of the upper valve seat 42 extends outwardly to a support 424, the support 424 is provided with a screw hole, and the upper valve seat 42 is connected with the pot cover 1 through the support 424.

[0041] Preferably, a sealing member 45 is further included, which is arranged between the inner wall of the upper valve seat 42 and the outer wall of the lower valve seat 43, and is arranged in a recess provided on the outer wall of the lower valve seat 43, so as to fill the gap between the upper valve seat 42 and the lower valve seat 43 and prevent steam from escaping from the gap.

[0042] Preferably, the second exhaust hole 442 is opposite to the air inlet hole 432, and an exhaust passage 434 is provided on the lower valve seat 43, and the two ends of the exhaust passage 434 are communicated with the second exhaust hole 442 and the air inlet hole 432 respectively, so that the steam can be exhausted after passing through the exhaust passage 434, and the path of the exhaust is short and the resistance along the path is small, thus accelerating the exhaust efficiency.

[0043] Further, a water collecting cover 41 is further included, which is arranged below the lower valve seat 43, and the downward part of the water collecting cover 41 is arranged to be contracted towards the center, so that the steam can be partially condensed after passing through the water collecting cover 41 when entering between the valve cores 44, and then flows back into the inner pot 2, thus preventing the food essence from leaking out.

[0044] The working process of the steam valve is as follows:

[0045] When the inner pot is in a low pressure state, the air inlet hole 432 is communicated to the outside through the exhaust passage 434 and the second exhaust hole 442, and the steam is slowly exhausted, and when the inner pot is raised to a high pressure, the high pressure steam pushes the valve core 44 to rise, the plunger 443 opens the air inlet nozzle 431, and the steam is exhausted outward through the air inlet nozzle 431 until the pressure in the inner pot is reduced.

[0046] Example Two

[0047] The embodiment also discloses a steaming electric appliance, which comprises the steam valve 4, the pot cover 1, the inner pot 2 and the outer shell 3, the pot cover 1 is provided with a through hole 11, the steam valve 4 is arranged on the through hole 11, the inner pot 2 is arranged in the outer shell 3, the pot cover 1 is connected to the outer shell 3 in an openable and closable manner, the steam valve 4 is communicated with the outside through the air inlet hole 432 and the second exhaust hole 442 when the pressure is below a set pressure, when the pressure in the inner pot 2 is raised to above the set pressure, the valve core 44 rises to open the air inlet nozzle 431, and the steam can be exhausted outward through the air inlet nozzle 431 and the first exhaust hole 441, so as to stabilize the pressure in the inner pot 2 within a certain range and prevent the food essence in the inner pot from being taken out when the steam is sprayed out.

[0048] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A steam valve, comprising an upper valve seat (42), a lower valve seat (43), and a valve core (44), wherein the upper valve seat (42) is sleeved on the lower valve seat (43), a cavity is formed between the upper valve seat (42) and the lower valve seat (43), and the valve core (44) is movably connected within the cavity, characterized in that: The lower valve seat (43) is provided with an air inlet nozzle (431) and an air inlet hole (432), the valve core (44) is provided with a first exhaust hole (441), a second exhaust hole (442) and a plunger (443), the plunger (443) is slidingly connected to the air inlet nozzle (431), the first exhaust hole (441) penetrates the side wall of the valve core (44) and communicates with the external environment, the second exhaust hole (442) penetrates the top of the valve core (44) and communicates with the external environment, the air inlet hole (432) communicates with the second exhaust hole (442), and the air inlet nozzle (431) can communicate with the first exhaust hole (441) and the second exhaust hole (442) respectively.

2. The steam valve of claim 1, wherein: The valve core (44) further comprises a recess (444) arranged on the lower top wall of the valve core (44), and the recess (444) is opposite to the air inlet hole (432).

3. The steam valve of claim 2, wherein: The valve core (44) further comprises a ring wall (445) arranged to protrude from the side wall of the valve core (44) and surround the plunger (443), and when the valve core (44) blocks the air inlet nozzle (431), the ring wall (445) forms a cover at the first exhaust hole (441).

4. The steam valve of claim 3, wherein: The upper valve seat (42) is clamped with the lower valve seat (43), the inner side wall of the upper valve seat (42) is provided with a groove (425), the outer side wall of the lower valve seat (43) is provided with a protruding portion (435), and the protruding portion (435) falls into the groove (425).

5. The steam valve of claim 4, further comprising a water collecting cover (41) arranged below the lower valve seat (43), and a downward portion of the water collecting cover (41) is arranged to be contracted towards the center.

6. The steam valve of claim 1, wherein: The upper valve seat (42) comprises a third exhaust hole (422) arranged to penetrate the top wall of the upper valve seat (42).

7. The steam valve of claim 6, wherein: The upper valve seat (42) further comprises a limiting column (421) and a limiting protrusion (423), both of which are arranged on the top of the upper valve seat (42), and the limiting protrusion (423) is arranged on both sides of the limiting column (421).

8. The steam valve of claim 1, further comprising a sealing member (45) arranged between the inner wall of the upper valve seat (42) and the outer wall of the lower valve seat (43).

9. The steam valve of claim 1, wherein: The second exhaust hole (442) is opposite to the air inlet hole (432). A steam valve according to any one of claims 1-9. ​ 10. A cooking appliance characterized by: ​

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