Micro-pressure steam valve

Abstract

The utility model relates to the technical field of electric cooker parts, in particular to a micro-pressure steam valve which comprises a valve body, a plurality of air inlets are formed in the bottom end of the valve body, a plurality of convex teeth are fixedly connected in the valve body, a steam channel is formed in the valve body, a plurality of baffles are fixedly connected in the valve body, a plurality of through holes are formed in the baffles, and the through holes are communicated with the steam channel. A pressure adjusting structure is arranged in the valve body and comprises a guide column and a micro-pressure spring, the guide column is slidably connected into the valve body, the micro-pressure spring is arranged in the valve body, one end of the guide column is slidably connected with a micro-gland, and a plurality of air holes are formed in the valve body. Certain micro-pressure can be formed in the rice cooker, so that rolling of rice grains in water is promoted, softening of the rice grains is accelerated, and the rice steaming time is shortened; meanwhile, a multi-layer bubble breaking structure is arranged, the bubble breaking and overflow preventing capacity is higher, when rice steaming is completed, external air normally enters the electric cooker, the internal air pressure difference tends to be consistent quickly, and uncovering use of the electric cooker is not affected.

Description

Technical Field

[0001] The utility model relates to a steam valve, in particular to a micro-pressure steam valve, belonging to the technical field of rice cooker components. Background Technique

[0002] At present, the steam valves on rice cookers usually have an air inlet and an air outlet. When cooking rice, when the pressure reaches a certain value, part of the steam is discharged from the steam outlet. An auxiliary defoaming structure is arranged inside the steam valve. The foam in the pot enters the steam valve through the steam inlet along with the steam. When the foam passes through the auxiliary defoaming structure, the surface is broken due to obstruction, so as to reduce the foam from overflowing outside the pot. In addition, some products are also provided with a micro-pressure structure, which can promote the increase of the temperature in the pot and the rolling of the ingredients, reduce the cooking time and enable the steam valve to play the role of exhausting gas and preventing overflow.

[0003] However, the anti-overflow ability of the existing steam valves of this kind is very limited. When using a rice cooker, if the user accidentally increases the water level or reduces the ratio of rice to water or cooks food at high power, it is impossible to achieve good anti-overflow only relying on the existing steam valve. Content of the Utility Model

[0004] The purpose of the utility model is to provide a micro-pressure steam valve to solve the above problems, which can form a certain micro-pressure in the rice cooker, promote the rolling of rice grains in water, accelerate the softening of rice grains, and reduce the steaming time; at the same time, it has a multi-layer defoaming structure, and the defoaming and anti-overflow ability is stronger. When the rice steaming is completed, the external air normally enters the rice cooker, and the internal air pressure difference will quickly tend to be consistent, without affecting the opening of the rice cooker cover for use.

[0005] The utility model realizes the above purpose through the following technical solutions. A micro-pressure steam valve includes a valve body. A plurality of air inlets are provided at the bottom end of the valve body. A plurality of convex teeth are fixedly connected inside the valve body. A steam channel is arranged inside the valve body. A plurality of baffles are fixedly connected inside the valve body. A plurality of through holes are provided on the baffles. A pressure regulating structure is arranged inside the valve body. The pressure regulating structure includes a guide post and a micro-pressure spring. The guide post is slidably connected inside the valve body. A micro-pressure spring is arranged inside the valve body. One end of the guide post is slidably connected with a micro-pressure cover. A plurality of air holes are arranged inside the valve body.

[0006] Preferably, one end of the micro-pressure spring is fixedly connected to the valve body, and the other end of the micro-pressure spring is fixedly connected to the micro-pressure cover.

[0007] Preferably, a plurality of the air holes are circumferentially and arrayedly distributed about the middle part of the valve body, and the cross section of the micro-pressure cover is in a T-shaped structure.

[0008] Preferably, a plurality of the air inlets are circumferentially and arrayedly distributed about the middle part of the valve body, and a plurality of the convex teeth are circumferentially and arrayedly distributed about the middle part of the valve body.

[0009] Preferably, a first cavity is provided on one side of the plurality of ventilation holes. One end of the ventilation hole is communicated with the steam channel, and the other end of the ventilation hole is communicated with the first cavity.

[0010] Preferably, a second cavity is provided inside the valve body. A plurality of exhaust ports are provided at the top end of the valve body. A plurality of ventilation ports are provided inside the valve body. One end of the ventilation port is communicated with the first cavity, and the other end of the ventilation port is communicated with the second cavity.

[0011] Preferably, the plurality of exhaust ports are circumferentially and arrayed about the middle of the valve body, and the plurality of ventilation ports are circumferentially and arrayed about the middle of the valve body.

[0012] Preferably, a protective cover is provided at the top end of the valve body. A silica gel ring is snap-fitted at the bottom end of the protective cover. A plurality of through grooves are provided on the protective cover.

[0013] The beneficial effects of the present utility model are as follows: The gas generated by heat inside the rice cooker enters the inside of the valve body through a plurality of air inlets. Some larger bubbles will be squeezed and broken during the process of passing through the air inlets. Some of the small bubbles after entering the air inlets will also be affected by the irregular convex teeth at the bottom and broken. Then the remaining bubbles will enter the steam channel along with the steam. When the steam passes through the baffle, the bubbles will be broken under the influence of the baffle. By providing a plurality of baffles, the effect of bubble breaking can be improved, and the ability of preventing overflow by breaking bubbles is stronger. The steam after bubble breaking will enter the top end of the steam channel, and then the air pressure will press the micro-pressure cover to move upward, and the micro-pressure spring will contract. The guide post plays a role in guiding the movement of the micro-pressure cover. When one side of the micro-pressure cover abuts against the valve body, the pressure inside the rice cooker will increase, so that a certain micro-pressure can be formed inside the rice cooker, promoting the rolling of the rice grains in the water, accelerating the softening of the rice grains, and reducing the steaming time. At the same time, to prevent danger caused by too high pressure inside the rice cooker, there is a narrow circle of ventilation holes around the micro-pressure cover, which plays a role in pressure relief and preventing too large a difference in air pressure inside and outside. Moreover, the advantage of multi-hole pressure relief is that when a single hole is blocked, other holes can work normally without affecting the pressure relief function, enhancing the safety of the structure. After the rice cooker finishes working and the air pressure inside and outside tends to be the same, to balance the air pressure difference inside and outside, it is necessary to absorb external air into the inside of the rice cooker. At this time, the external air reaches the micro-pressure cover through the valve body. Affected by the suction force, the micro-pressure spring elongates, and the micro-pressure cover droops downward, so that the air intake can be increased, the air pressure difference inside and outside can be reduced, and the normal opening of the rice cooker cover is not affected. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2Schematic diagram of the connection structure between the protective cover and the through groove of the present utility model;

[0016] Figure 3 Schematic diagram of the connection structure between the valve body and the air inlet of the present utility model;

[0017] Figure 4 Schematic diagram of the overall structure of the micro-pressure cover of the present utility model;

[0018] Figure 5 Schematic diagram of the separation structure of the micro-pressure cover of the present utility model.

[0019] In the figure: 1. Valve body; 2. Air inlet; 3. Convex teeth; 4. Steam channel; 5. Baffle; 6. Through hole; 7. Pressure regulating structure; 701. Micro-pressure cover; 702. Guide post; 703. Micro-pressure spring; 8. Vent hole; 9. First cavity; 10. Vent port; 11. Second cavity; 12. Exhaust port; 13. Protective cover; 14. Silicone ring; 15. Through groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown, a micro-pressure steam valve includes a valve body 1. A plurality of air inlets 2 are provided at the bottom end of the valve body 1. A plurality of convex teeth 3 are fixedly connected inside the valve body 1. A steam channel 4 is provided inside the valve body 1. A plurality of baffles 5 are fixedly connected inside the valve body 1. A plurality of through holes 6 are provided on the baffle 5. A pressure regulating structure 7 is provided inside the valve body 1. The pressure regulating structure 7 includes a guide post 702 and a micro-pressure spring 703. The guide post 702 is slidably connected inside the valve body 1. A micro-pressure spring 703 is provided inside the valve body 1. One end of the guide post 702 is slidably connected to a micro-pressure cover 701. A plurality of vent holes 8 are provided inside the valve body 1.

[0022] As a technical optimization scheme of the present utility model, as Figure 1 shown, one end of the micro-pressure spring 703 is fixedly connected to the valve body 1, and the other end of the micro-pressure spring 703 is fixedly connected to the micro-pressure cover 701. Therefore, when the pressure inside the rice cooker decreases, the micro-pressure cover 701 can be opened under the action of the micro-pressure spring 703, thereby increasing the air intake and reducing the internal and external air pressure difference, without affecting the normal opening of the rice cooker lid.

[0023] As a technical optimization scheme of the present utility model, as Figure 1 and Figure 3 shown, a plurality of the ventilation holes 8 are circumferentially and arrayedly distributed about the middle part of the valve body 1, the cross section of the micro-pressure cover 701 is in a T-shaped structure, a plurality of the air inlets 2 are circumferentially and arrayedly distributed about the middle part of the valve body 1, and a plurality of the convex teeth 3 are circumferentially and arrayedly distributed about the middle part of the valve body 1. Therefore, the bubbles can be broken by the plurality of convex teeth 3.

[0024] As a technical optimization scheme of the present utility model, as Figure 1 shown, a first cavity 9 is provided on one side of a plurality of the ventilation holes 8, one end of the ventilation hole 8 is communicated with the steam channel 4, the other end of the ventilation hole 8 is communicated with the first cavity 9, a second cavity 11 is provided inside the valve body 1, a plurality of exhaust ports 12 are provided at the top end of the valve body 1, a plurality of ventilation ports 10 are provided inside the valve body 1, one end of the ventilation port 10 is communicated with the first cavity 9, and the other end of the ventilation port 10 is communicated with the second cavity 11. A plurality of the exhaust ports 12 are circumferentially and arrayedly distributed about the middle part of the valve body 1, and a plurality of the ventilation ports 10 are circumferentially and arrayedly distributed about the middle part of the valve body 1. Therefore, the steam can circulate inside the valve body 1 and finally be discharged from the plurality of exhaust ports 12.

[0025] As a technical optimization scheme of the present utility model, as Figure 1 and Figure 2 shown, a protective cover 13 is provided at the top end of the valve body 1, a silica gel ring 14 is clamped at the bottom end of the protective cover 13, and a plurality of through grooves 15 are provided on the protective cover 13. Therefore, the protective cover 13 can play a role in shielding and protecting the valve body 1.

[0026] When the utility model is in use, the gas generated by heat in the rice cooker enters the inside of the valve body 1 through multiple air inlets 2. Some large bubbles will be squeezed and burst during the process of passing through the air inlets 2. Some small bubbles after entering the air inlets 2 will also be affected by the irregular convex teeth 3 at the bottom and burst. Then the remaining bubbles will enter the steam channel 4 along with the steam. When the steam passes through the baffle 5, the bubbles will burst under the influence of the baffle 5. By arranging multiple baffles 5, the effect of bubble bursting can be improved, and the ability of preventing overflow by breaking bubbles is stronger. The steam after bubble breaking will enter the top end of the steam channel 4, and then the air pressure will press the micro-pressure cover 701 to move upward, and the micro-pressure spring 703 will contract. The guiding column 702 plays a role in guiding the movement of the micro-pressure cover 701. When one side of the micro-pressure cover 701 abuts against the valve body 1, the pressure inside the rice cooker will increase, so that a certain micro-pressure can be formed inside the rice cooker, promoting the rolling of rice grains in water, accelerating the softening of rice grains, reducing the steaming time. At the same time, to prevent danger caused by too high pressure inside the rice cooker, there is a narrow air vent 8 around the micro-pressure cover 701, which plays a role in pressure relief and preventing too large a difference in air pressure inside and outside. The advantage of multi-hole pressure relief is that other holes can work normally when a single hole is blocked, without affecting the pressure relief function and enhancing the safety of the structure. The steam passing through the air vent 8 will enter the inside of the first cavity 9, then enter the inside of the second cavity 11 through multiple air vents 10, and finally be discharged through multiple exhaust ports 12. And a protective cover 13 is provided at the top end of the valve body 1, which can prevent the overall structure from being damaged. The multiple through grooves 15 provided on the protective cover 13 can facilitate the discharge of gas, and a silica gel ring 14 is provided to increase the friction force so that it can be fixed on the rice cooker. After the rice cooker finishes working and the air pressure inside and outside tends to be the same, to balance the air pressure difference inside and outside, external air needs to be absorbed into the rice cooker. At this time, the external air reaches the micro-pressure cover 701 through the valve body 1. Affected by the suction force, the micro-pressure spring 703 extends, and the micro-pressure cover 701 droops downward, so that the air intake can be increased, the air pressure difference inside and outside can be reduced, and the normal opening of the rice cooker cover is not affected.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0028] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-pressure steam valve, comprising a valve body (1), characterized in that: The bottom end of the valve body (1) is provided with a plurality of air inlets (2), the interior of the valve body (1) is fixedly connected with a plurality of convex teeth (3), the interior of the valve body (1) is provided with a steam passage (4), the interior of the valve body (1) is fixedly connected with a plurality of baffles (5), the baffles (5) are provided with a plurality of through holes (6), the interior of the valve body (1) is provided with a pressure regulating structure (7), the pressure regulating structure (7) comprises a guide column (702) and a micro-pressure spring (703), the interior of the valve body (1) is slidably connected with the guide column (702), the interior of the valve body (1) is provided with a micro-pressure spring (703), one end of the guide column (702) is slidably connected with a micro-pressure cover (701), and the interior of the valve body (1) is provided with a plurality of air holes (8).

2. A micro-pressure steam valve according to claim 1, characterized in that: One end of the micro-pressure spring (703) is fixedly connected to the valve body (1), and the other end of the micro-pressure spring (703) is fixedly connected to the micro-pressure cover (701).

3. A micro-pressure steam valve according to claim 1, characterized in that: The plurality of air holes (8) are distributed in a circular array about the middle of the valve body (1), and the cross section of the micro-pressure cover (701) is a T-shaped structure.

4. A micro-pressure steam valve according to claim 1, characterized in that: The plurality of air inlets (2) are distributed in a circular array about the middle of the valve body (1), and the plurality of convex teeth (3) are distributed in a circular array about the middle of the valve body (1).

5. The micro-pressure steam valve according to claim 1, characterized in that: A first cavity (9) is provided on one side of the plurality of air holes (8); one end of the air hole (8) is connected to the steam channel (4); and the other end of the air hole (8) is connected to the first cavity (9).

6. A micro-pressure steam valve according to claim 5, characterized in that: A second cavity (11) is provided inside the valve body (1), a plurality of exhaust ports (12) are provided at the top end of the valve body (1), a plurality of vents (10) are provided inside the valve body (1), one end of the vent (10) is connected to the first cavity (9), and the other end of the vent (10) is connected to the second cavity (11).

7. A micro-pressure steam valve according to claim 6, characterized in that: The plurality of exhaust ports (12) are distributed in a circular array about the middle of the valve body (1), and the plurality of vent ports (10) are distributed in a circular array about the middle of the valve body (1).

8. The micro-pressure steam valve according to claim 1, characterized in that: A protective cover (13) is provided at the top end of the valve body (1), a silicone ring (14) is clamped at the bottom end of the protective cover (13), and a plurality of through grooves (15) are provided on the protective cover (13).

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