Micro-pressure valve for micro-pressure electric cooker and electric cooker

Abstract

The micro-pressure valve for the micro-pressure electric cooker comprises an air valve seat with an opening in the upper side, an air valve cover is installed on the air valve seat, a steam cavity is defined by the air valve seat and the air valve cover, and a steam inlet hole blocked or opened by a steam sealing cover is formed in the air valve seat. The steam sealing cover is provided with a steam inlet hole, the steam valve cover is provided with a steam outlet which is staggered with the steam inlet hole, a backflow baffle is arranged between the steam inlet hole and the steam outlet, and a backflow hole which is blocked or opened by a backflow sealing piece is formed in the position, below the steam outlet, in the air valve seat. The steam is discharged from the steam outlet after entering the steam cavity, and if the pressure of the steam in the steam cavity is too large, the backflow sealing piece can be burst open, so that the steam flows back into the cooker through the backflow hole, and the electric cooker has a good pressure maintaining effect.

Description

Technical Field

[0001] The utility model relates to a household appliance and its accessories, in particular to a micro-pressure valve for a micro-pressure rice cooker and a rice cooker. Background Art

[0002] An electric rice cooker is a daily household appliance mainly used for cooking rice. With the increase in the functions of the electric rice cooker, in addition to basic rice cooking, it also includes porridge cooking, soup stewing, steamed dishes and snacks, etc. It has now become an essential appliance in daily life.

[0003] Some existing rice cookers are provided with a steam outlet on the pot lid. After the pressure in the pot reaches a certain value, the steam is discharged from the steam outlet. Since the pot lid and the rice cooker are simply buckled, after the liquid in the pot boils, the steam cannot be discharged in time. Under the action of the pressure in the pot, the pot lid is lifted, and the liquid in the pot overflows from the pot edge. At the same time, the pressure in the rice cooker drops, thus affecting the taste and quality of the cooked rice. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a micro-pressure valve for a micro-pressure rice cooker and a rice cooker.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A micro-pressure valve for a micro-pressure rice cooker includes a valve seat with an opening on the upper side. A valve cover is installed on the valve seat. A steam chamber is formed by surrounding between the valve seat and the valve cover. A steam inlet hole blocked or opened by a steam sealing cover is arranged in the valve seat. A steam outlet hole misaligned with the steam inlet hole is arranged on the valve cover. A reflux baffle is arranged between the steam inlet hole and the steam outlet hole. A reflux hole blocked or opened by a reflux sealing member is arranged below the steam outlet hole in the valve seat.

[0007] An outer peripheral retaining ring surrounding the steam inlet hole is arranged in the valve seat. A sealing ring is installed on the outer edge of the steam sealing cover. The sealing ring abuts against the top surface of the outer peripheral retaining ring. An inner retaining ring is arranged at the center of the outer peripheral retaining ring. A first mounting hole is arranged in the inner retaining ring. A gravity column is arranged at the center of the steam sealing cover. A limiting ring is fixed at the lower end of the gravity column. The gravity column passes through the first mounting hole. When the limiting ring abuts against the bottom surface of the valve seat, the sealing ring is separated from the top surface of the outer peripheral retaining ring.

[0008] A first concave cavity with an open lower end is arranged in the gravity column. The steam inlet hole is arranged on the side wall of the first concave cavity above the limiting ring. When the top surface of the limiting ring abuts against the bottom surface of the valve seat, the steam inlet hole is higher than the top surface of the inner retaining ring.

[0009] The steam inlet hole is arranged between the inner retaining ring and the outer retaining ring.

[0010] A plurality of steam inlet holes arranged in a ring are provided between the inner retaining ring and the outer retaining ring.

[0011] The bottom surface of the reflux baffle is lower than the top surface of the outer retaining ring.

[0012] A second concave cavity is provided in the valve seat body, and the reflux hole is arranged at the bottom of the second concave cavity.

[0013] A second mounting hole is provided at the center of the second concave cavity. An insertion part is provided on the reflux seal. A limiting part is provided at the upper end of the insertion part. After the insertion part is inserted into the second mounting hole, the limiting part is located in the second concave cavity, and the reflux seal is located below the valve seat body.

[0014] A lower retaining ring for surrounding the reflux seal is provided on the bottom surface of the valve seat body.

[0015] An electric rice cooker incorporating the micro-pressure valve for a micro-pressure rice cooker as described above includes an electric rice cooker body composed of a base body and a lid body. A steam outlet is provided on the lid body, and the micro-pressure valve for a micro-pressure rice cooker is detachably installed in the steam outlet.

[0016] The beneficial effects of the present utility model are as follows: An air valve cover is installed on the valve seat body of the present utility model. A steam cavity is formed by surrounding between the valve seat body and the air valve cover. A steam inlet hole blocked or opened by a steam seal cover is provided in the valve seat body. A steam outlet is provided on the air valve cover and is arranged in a staggered manner with the steam inlet hole. A reflux baffle is arranged between the steam inlet hole and the steam outlet. A reflux hole blocked or opened by a reflux seal is provided below the steam outlet in the valve seat body. When the electric rice cooker is working, the steam flushes open the steam seal cover, so that the steam enters the steam cavity and then is discharged from the steam outlet. If the steam pressure in the steam cavity is too high, the reflux seal can be flushed open, so that the steam flows back into the pot through the reflux hole, enabling the electric rice cooker to have a good pressure-holding effect. After the electric rice cooker stops working, the steam seal cover blocks the steam inlet hole under the action of gravity. At the same time, the pressure inside the electric rice cooker is still relatively high, applying pressure to the reflux seal, thereby blocking the reflux hole, ensuring the tightness of the steam valve, having a good heat preservation effect, being clean and hygienic, and preventing dust from entering. Description of the Drawings

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is a structural diagram of the present utility model;

[0019] Figure 2It is an exploded view of the present utility model;

[0020] Figure 3 It is a cross-sectional view of Embodiment 2;

[0021] Figure 4 It is a structural diagram of the air valve seat in Embodiment 2;

[0022] Figure 5 It is a cross-sectional view of Embodiment 1;

[0023] Figure 6 It is a structural diagram of the air valve seat in Embodiment 1;

[0024] Figure 7 It is a structural diagram of the air valve cover;

[0025] Figure 8 It is a partial cross-sectional view of the present utility model after being installed in an electric rice cooker. Specific embodiments

[0026] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0027] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model.

[0028] The following describes a kind provided by some embodiments of the present utility model in conjunction with the accompanying drawings.

[0029] Refer to Figure 1-8, A micro-pressure valve for a micro-pressure rice cooker, comprising a valve seat 2 with an opening on the upper side. A valve cover 3 is installed on the valve seat 2. A steam chamber 4 is formed by enclosing between the valve seat 2 and the valve cover 3. A steam inlet hole 6 blocked or opened by a steam sealing cover 5 is provided in the valve seat 2. A steam outlet 7 arranged in a staggered manner with the steam inlet hole 6 is provided on the valve cover 3 to prevent steam from directly discharging through the steam outlet 7, thereby reducing its pressure-holding effect. A reflux baffle 8 is arranged between the steam inlet hole 6 and the steam outlet 7. A reflux hole 10 blocked or opened by a reflux seal 9 is provided below the steam outlet 7 in the valve seat 2. When the rice cooker works, the steam flushes open the steam sealing cover, enabling the steam to enter the steam chamber and then discharge from the steam outlet. If the steam pressure in the steam chamber is too high, the reflux seal can be flushed open, allowing the steam to flow back into the pot through the reflux hole, enabling the rice cooker to have a good pressure-holding effect. After the rice cooker stops working, the steam sealing cover blocks the steam inlet hole under the action of gravity. At the same time, the pressure inside the rice cooker is still relatively high, applying pressure to the reflux seal and then blocking the reflux hole, ensuring the airtightness of the steam valve, having a good heat preservation effect, being clean and hygienic, and preventing dust from entering.

[0030] An outer peripheral retaining ring 11 surrounding the steam inlet hole 6 is provided in the valve seat 2. A sealing ring 12 is installed on the outer edge of the steam sealing cover 5. The top surface of the sealing ring 12 abuts against the top surface of the outer peripheral retaining ring 11. An inner retaining ring 13 is provided at the center of the outer peripheral retaining ring 11. A first mounting hole 17 is provided inside the inner retaining ring 13. A gravity column 14 is provided at the center of the steam sealing cover 5. A limiting ring 15 is fixed at the lower end of the gravity column 14. The gravity column 14 passes through the first mounting hole 17. When the steam in the rice cooker 1 flushes open the steam sealing cover 5, the limiting ring 15 abuts against the bottom surface of the valve seat 2, and the sealing ring 12 separates from the top surface of the outer peripheral retaining ring 11. The limiting ring 15 prevents the steam sealing cover 5 from completely disengaging from the first mounting hole 17.

[0031] Embodiment 1: A first concave cavity 16 with an opening at the lower end is provided in the gravity column 14. The steam inlet hole 6 is provided on the side wall of the first concave cavity 16 above the limiting ring 15. When the top surface of the limiting ring 15 abuts against the bottom surface of the valve seat 2, the steam inlet hole 6 is higher than the top surface of the inner retaining ring 13.

[0032] After the steam in the rice cooker 1 enters the first concave cavity 16, at the same time, the high-pressure steam lifts the steam sealing cover 5. The steam sequentially passes through the steam inlet hole 6 and the gap between the sealing ring 12 and the outer peripheral retaining ring 11 and enters the steam chamber 4, and then discharges from the steam outlet 7 (as Figure 5As shown in B of [description], the exhaust direction of the steam in Embodiment 1 is indicated by multiple arrows).

[0033] Embodiment 2: The steam inlet hole 6 is arranged between the inner retaining ring 13 and the outer retaining ring 11. A number of annularly arranged steam inlet holes 6 are provided between the inner retaining ring 13 and the outer retaining ring 11. After the steam in the rice cooker 1 enters the space between the inner retaining ring 13 and the outer retaining ring 11 through the steam inlet holes 6, at the same time, the high-pressure steam lifts the steam sealing cover 5, and the steam enters the steam chamber 4 through the gap between the sealing ring 12 and the outer retaining ring 11, and then is discharged from the steam outlet 7 (as Figure 3 As shown in A of [description], the exhaust direction of the steam in Embodiment 2 is indicated by multiple arrows).

[0034] The reflux baffle 8 divides the valve cover 3 into a first cavity 25 and a second cavity 26. The first cavity 25 is located above the steam inlet hole 6, and the steam outlet 7 is located in the second cavity 26. The bottom surface of the reflux baffle 8 is lower than the top surface of the outer retaining ring 11. A steam channel 27 is formed between the outer side of the reflux baffle 8 and the outer retaining ring 11. After the steam in the rice cooker 1 enters the position of the steam chamber 4 where the first cavity 25 is located through the steam inlet hole 6, it flows downward through the steam channel 27 and enters the position of the second cavity 26 in the steam chamber 4, and finally is discharged through the steam outlet 7, increasing the flow distance of the steam in the steam valve, reducing the flow speed at the same time, increasing the flow time, so that the speed of the steam slows down during the discharge process, keeping the pressure in the pot relatively stable, which is beneficial to the uniform heating and full cooking of the rice in a suitable pressure environment, thereby improving the taste and quality of the rice. In addition, it plays a role in buffering and blocking the steam, preventing the rice soup or food particles in the pot from spraying out violently along with the steam.

[0035] A second concave cavity 18 is arranged in the valve seat 2, and the reflux hole 10 is arranged at the bottom of the second concave cavity 18. When the rice cooker stops working, the steam quickly cools down to form water droplets, and the second concave cavity 18 can be used to collect the water droplets in the steam chamber 4.

[0036] A second mounting hole 19 is arranged at the center of the second concave cavity 18. An insertion part 20 is arranged on the reflux seal 9. A limiting part 21 is arranged at the upper end of the insertion part 20. After the insertion part 20 is inserted into the second mounting hole 19, the limiting part 21 is located in the second concave cavity 18. The reflux seal 9 is located below the valve seat 2. The distance between the limiting part 21 and the reflux seal 9 is greater than the thickness of the bottom of the second concave cavity 18, so that the reflux seal 9 can be switched between blocking and opening the reflux hole 10.

[0037] A lower retaining ring 22 for surrounding the reflux seal 9 is provided on the bottom surface of the valve seat 2, further improving the blocking effect of the reflux seal 9 on the reflux hole 10.

[0038] A number of buckle portions 23 arranged in a ring are provided on the outer side of the valve seat 2, a buckle groove 24 corresponding to the buckle portions 23 is provided in the valve cover 3, the valve seat 2 and the valve cover 3 are fixedly installed through the buckle portions 23 and the buckle groove 24, and the buckle groove 24 is an "L"-shaped groove. After the buckle portion 23 is inserted into the buckle groove 24, the valve seat 2 and the valve cover 3 can be fixed by screwing.

[0039] An electric rice cooker incorporating the micro-pressure valve for a micro-pressure rice cooker as described above includes an electric rice cooker body 1 composed of a base body 28 and a cover body 29. A steam outlet is provided on the cover body 29, and the micro-pressure valve for a micro-pressure rice cooker is detachably installed in the steam outlet.

[0040] In the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0042] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A micro-pressure valve for a micro-pressure rice cooker, comprising a valve seat (2) with an upper opening, a valve cover (3) mounted on the valve seat (2), characterized in that The air valve seat (2) and the air valve cover (3) enclose a steam chamber (4); a steam inlet hole (6) blocked or opened by a steam sealing cover (5) is provided in the air valve seat (2); a steam outlet (7) arranged offset from the steam inlet hole (6) is provided on the air valve cover (3); a backflow baffle (8) is provided between the steam inlet hole (6) and the steam outlet (7); and a backflow hole (10) blocked or opened by a backflow sealing member (9) is provided in the air valve seat (2) below the steam outlet (7).

2. The micro-pressure valve for a micro-pressure rice cooker according to claim 1, characterized in that An outer retaining ring (11) is arranged inside the gas valve seat (2) and surrounds the steam inlet hole (6); a sealing ring (12) is installed on the outer edge of the steam sealing cover (5), and the sealing ring (12) abuts against the top surface of the outer retaining ring (11); an inner retaining ring (13) is arranged at the center of the outer retaining ring (11), and a first mounting hole (17) is arranged inside the inner retaining ring (13); a gravity column (14) is arranged at the center of the steam sealing cover (5), and a limiting ring (15) is fixed at the lower end of the gravity column (14), and the gravity column (14) is inserted into the first mounting hole (17); when the limiting ring (15) abuts against the bottom surface of the gas valve seat (2), the sealing ring (12) is separated from the top surface of the outer retaining ring (11).

3. The micro-pressure valve for a micro-pressure rice cooker according to claim 2, characterized in that A first concave cavity (16) with an opening at the lower end is arranged in the gravity column (14), and the steam inlet hole (6) is arranged on the side wall of the first concave cavity (16) above the limiting ring (15). When the top surface of the limiting ring (15) abuts against the bottom surface of the valve seat (2), the steam inlet hole (6) is higher than the top surface of the inner retaining ring (13).

4. The micro-pressure valve for a micro-pressure rice cooker according to claim 2, characterized in that The steam inlet hole (6) is arranged between the inner retaining ring (13) and the outer retaining ring (11).

5. The micro-pressure valve for a micro-pressure rice cooker according to claim 4, characterized in that A plurality of steam inlet holes (6) arranged in a ring shape are provided between the inner retaining ring (13) and the outer retaining ring (11).

6. The micro-pressure valve for a micro-pressure rice cooker according to claim 2, characterized in that The bottom surface of the return baffle (8) is lower than the top surface of the peripheral baffle (11).

7. The micro-pressure valve for a micro-pressure rice cooker according to claim 1, characterized in that A second concave cavity (18) is provided in the gas valve seat (2), and the reflux hole (10) is provided at the bottom of the second concave cavity (18).

8. The micro-pressure valve for a micro-pressure rice cooker according to claim 7, characterized in that A second mounting hole (19) is provided at the center of the second concave cavity (18), an inserting portion (20) is provided on the return flow sealing member (9), and a limiting portion (21) is provided at the upper end of the inserting portion (20); after the inserting portion (20) is inserted into the second mounting hole (19), the limiting portion (21) is located in the second concave cavity (18), and the return flow sealing member (9) is located below the gas valve seat (2).

9. The micro-pressure valve for a micro-pressure rice cooker according to claim 8, characterized in that The bottom surface of the gas valve seat (2) is provided with a lower enclosure ring (22) for surrounding the return flow seal (9).

10. An electric rice cooker using a micro-pressure valve for a micro-pressure electric rice cooker as claimed in any one of claims 1 to 9, characterized in that: The invention comprises an electric rice cooker body (1) composed of a base body (28) and a cover body (29), wherein the cover body (29) is provided with a steam outlet, and the micro-pressure valve for the micro-pressure electric rice cooker is detachably mounted in the steam outlet.

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