CN205913234U - Water tank for processing steam and rice cooking equipment with water tank - Google Patents

Abstract

The utility model provides a water tank for processing steam and rice cooking equipment with it. The water tank includes a tank body and a water tank cover for covering the tank body. When the water tank cover covers the tank body , there is a gap at the junction of the water tank cover and the box body. The interior of the water tank of the utility model can always maintain good communication with the external air, so that it can effectively prevent the cooling water in the water tank from backflow under the action of negative pressure, and has the advantage that the anti-backflow effect is not easy to fail, and the design Reasonable, simple in structure, easy to manufacture.

Description

Water tank for handling steam and rice cooking equipment with same

technical field

The utility model relates to the technical field of household appliances, in particular to a water tank for processing steam and rice cooking equipment with the same.

Background technique

Kitchen household electrical appliances in people's daily life, especially cooking equipment, such as rice cookers, electric steamers, pressure cookers, etc., will generate water vapor during high-temperature heating. If the water vapor is not discharged in time, the internal pressure of the equipment will continue to rise, and the direct discharge will cause adverse effects on the surrounding environment. In addition, when the heating is stopped, the temperature inside the equipment drops slowly, which may cause negative pressure inside the device. Taking the rice cooker as an example, in order to prevent the water vapor generated during the cooking process from being discharged around the main body of the rice cooker, the steam conduit is usually used to guide the water vapor into the water tank used for steam processing, such as the cooling water stored in the water tank, so that condenses water vapor into water. In this solution, when negative pressure occurs in the inner pot, the cooling water in the water tank will flow back into the inner pot, affecting the quality of food.

Patent No. 200980140862.1 discloses an electric rice cooker that prevents cooling water from flowing backward. The rice cooker has a steam treatment box, that is, a water tank for handling steam. There is tight fit between the upper cover of the steam treatment box and the main body of the box. At the same time, the upper cover of the steam treatment box is provided with a plurality of ventilation holes for communicating the outside air with the inside of the main body of the box, and the side of the upper cover connecting pipe is provided with check valve. When there is a negative pressure in the inner pot, the outside atmosphere will enter the main body of the box from the vent hole, then push open the check valve, and enter the inner pot through the steam conduit, so that the air pressure in the inner pot is the same as the outside atmospheric pressure, preventing steam processing The cooling water in the tank flows back under the action of negative pressure. However, during the use of the electric rice cooker, the vent hole on the upper cover of the steam treatment box is prone to blockage, and once it is blocked, the outside air cannot communicate with the main body of the box due to the tight fit between the upper cover and the main body of the box. The interior remains connected, resulting in the failure of the anti-backflow measures.

Utility model content

The purpose of this utility model is to provide a water tank for steam processing and rice cooking equipment with it. The interior of the water tank can always maintain good communication with the outside air, and the rice cooking equipment with the water tank can effectively prevent the water tank from The cooling water in the backflow occurs under the action of negative pressure, and the backflow effect is not easy to fail.

In order to achieve the above object, the technical solution adopted in the utility model is:

A water tank for treating steam, the water tank includes a tank body and a water tank cover for covering the tank body;

When the water tank cover is covered on the box body, there is a gap at the junction of the water tank cover and the box body.

Preferably, the water tank cover has a limiting portion, and the gap includes a first gap formed between a side surface of the limiting portion and the tank body.

Preferably, a protrusion is provided on the side surface of the limiting portion and/or on the side surface of the box body corresponding to the limiting portion, and the water tank cover is connected between the protrusion and the box body. Interference fit.

Preferably, the limiting part is configured to be suitable for protruding into the inside of the box, and the protrusion is arranged on the outer surface of the limiting part and abuts against the inner wall of the box .

Preferably, the limiting part is configured to be sleeved on the outside of the box, and the protrusion is arranged on the inner surface of the limiting part and abuts against the outer wall of the box superior.

Preferably, the opening edge of the box body is provided with a lifting part, the top surface of the lifting part is higher than the rest of the opening edge of the box body, when the water tank cover covers the box body When it is on, the water tank cover does not cover the lifting part, and the gap includes a second gap between the outer side of the water tank cover and the inner side of the lifting part.

Preferably, the inner surface of the lifting part protrudes toward the inside of the tank body, and the outer surface of the water tank cover has a evacuation groove matching the shape of the inner surface of the lifting part.

Preferably, the water tank cover is provided with a communication hole and a communication pipe extending from the communication hole toward the interior of the tank, the side wall of the communication pipe has a vent hole, and a single vent hole is provided at the vent hole. to the valve.

Preferably, the one-way valve includes a connecting portion and a valve plate, and a connecting hole is also provided on the communicating pipe, the one-way valve is connected to the connecting hole through the connecting portion, and passes through the valve The sheet covers the vent hole.

Preferably, a sound-absorbing device is connected to one end of the communication pipe protruding into the inside of the box.

Preferably, a sealing ring is provided at the joint between the noise reduction device and the communicating pipe.

Preferably, the port of the noise reduction device is provided with a bell mouth.

A rice cooking device, which includes a device body, a cover for covering the device body, and an inner pot placed in the device body;

It also includes the water tank described in any of the preceding items;

Wherein, the cover is provided with a ventilation structure, and when the cover is closed, the ventilation structure communicates the inner pot with the water tank.

Preferably, the main body of the device is provided with a water tank accommodating cavity, and the water tank is placed in the water tank accommodating cavity along a direction parallel to the axis of the inner pot.

Preferably, a notch is provided at the opening of the water tank accommodating cavity, and the shape and size of the notch are set to facilitate taking out the water tank through the notch.

The beneficial effects of the utility model are:

By adopting the technical scheme that when the water tank cover is covered on the box body, there is a gap at the joint between the water tank cover and the box body, the water tank for steam treatment of the present invention has the following advantages: the water tank The interior of the tank can always maintain good communication with the outside air, which can effectively prevent the water in the water tank from backflow under the action of negative pressure, and this anti-backflow effect is not easy to fail, so when it is used in cooking equipment It can prevent the cooling water in the water tank from entering the inner pot.

Description of drawings

Fig. 1 is an exploded schematic diagram of a water tank for processing steam according to an embodiment of the present invention;

Fig. 2 is a schematic diagram when the water tank in Fig. 1 is in a closed state;

Fig. 3 is a partial cross-sectional schematic diagram of the connecting pipe in Fig. 1;

Fig. 4 is a partial enlarged schematic view of the water tank cover in Fig. 1;

Fig. 5 is a schematic diagram of the installation between the limiting part and the box in Fig. 4;

Fig. 6 is a schematic cross-sectional view of the position of the lifting part in Fig. 2;

Fig. 7 is a schematic diagram of the one-way valve in Fig. 3;

Fig. 8 is a schematic diagram of the installation state of the water tank of the present invention in the rice cooking equipment;

Fig. 9 is a schematic view of the cover covering the main body of the device in Fig. 8, wherein the shell part of the cover is removed to show its steam conduit;

In the figure: 1 water tank; 11 box body; 111 lifting part; 12 water tank cover; 121 communication hole; 122 limit part; 123 protrusion; ; 1321 connecting portion; 1322 valve plate; 133 connecting hole; 14 first gap; 15 second gap; 16 sealing ring; 17 silencer device; 171 bell mouth; 3 inner pots.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the steam processing water tank and rice cooking equipment of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in FIGS. 1 and 2 , a water tank 1 for treating steam includes a tank body 11 and a water tank cover 12 for covering the tank body 11 . When the water tank cover 12 is covered on the box body 11 , there is a gap at the junction of the water tank cover 12 and the box body 11 .

As a water tank with a preferred structure, the water tank cover 12 is provided with a communication hole 121 and a communication pipe 13 extending from the communication hole 121 towards the inside of the tank body 11. The side wall of the communication pipe 13 has a vent hole 131, and the vent hole 131 is provided. There is a one-way valve 132 provided so as to open one-way toward the interior of the communication pipe.

Because there is a gap at the junction of the water tank cover and the tank body, external air can smoothly enter the water tank through the gap, and then enter the connecting pipe 13 through the one-way valve 132, so that negative pressure (lower than the external air pressure) occurs in the connecting pipe. ) can smoothly inhale external air for compensation, without sucking the substances stored in the water tank (such as the water that has not passed the lower end of the connecting pipe) into the connecting pipe, thereby preventing the water in the water tank from backflow under the action of negative pressure . Conversely, when there is a positive pressure (higher than the external air pressure) in the connecting pipe, the one-way valve 132 is one-way closed, and the gas in the connecting pipe can only be discharged into the water tank through the free end (such as the lower end) of the connecting pipe, such as Drain into the substance (for example) water stored in the tank.

In specific use, the water tank 1 can be placed in rice cooking equipment such as an electric rice cooker, electric steamer, pressure cooker, etc., for example, placed side by side with the inner pot of the rice cooking equipment. At the same time, an appropriate amount of cooling water can be stored in the water tank, so that the water tank cover 12 When the lid is closed, the lower end of the communication pipe 13 is located below the water surface, and the vent hole 131 is located above the water surface, so that when the communication between the inner pot and the communication hole 121 is realized, the steam generated in the inner pot will be drawn along the communication pipe 13 Send it into cooling water to condense the steam into water. And when there is a negative pressure in the inner pot, the external air can enter the connecting pipe 13 through the aforementioned slit and the one-way valve in turn, and then reach the inner pot.

Due to the existence of the gap, the water tank of the utility model can always keep the same air pressure inside and outside the water tank. Moreover, since the slit usually has a certain length, such as a narrow and long structure, this structure is not easy to be blocked, and even if a partial blockage occurs, it will not affect the ventilation performance of other unblocked parts. Therefore, the water tank of the utility model can effectively prevent the cooling water in the water tank from backflow under the action of negative pressure, and the anti-backflow effect is not easy to fail, thereby ensuring the quality of food in the corresponding rice cooking equipment.

The optional modes of the gap between the water tank cover 12 and the tank body 11 in this embodiment will be introduced in detail below.

As shown in FIG. 4 and FIG. 5 , preferably, the water tank cover 12 has a limiting portion 122 , and the gap may include a first gap 14 formed between a side surface of the limiting portion 122 and the tank body 11 . Further, a protrusion (preferably in the form of a rib) 123 may be provided on the side surface of the limiting portion 122 , and the water tank cover 12 is interference-fitted with the tank body 11 through the protrusion 123 . Wherein, as an optional way, the limiting part 122 is configured to be suitable for extending into the inside of the box body 11, and the protrusion 123 is arranged on the outer surface of the limiting part 122 and abuts against the inner wall of the box body 11 . As another optional way, the limiting portion 122 is configured to be sleeved on the outside of the box body 11 , and the protrusion 123 is arranged on the inner surface of the limiting portion 122 and abuts against the outer wall of the box body 11 . According to the length and position of the slit, the number of the protrusion 123 can be one or more, for example, distributed on both sides or around the limiting portion 122 .

The limiting part 122 can ensure that the water tank cover 12 is firmly installed on the box body 11 through the interference fit between the protrusion 123 and the box body 11, wherein the protrusion 123 can be fixedly connected or integrally formed on the side surface of the limiting part 122 The ribs on the side surface of the position-limiting part 122 other than the ribs form the first gap 14 with the box body 11 .

Of course, the protrusion can also be arranged on the side surface of the box body, that is, on the side surface corresponding to the limiting part, so as to ensure the interference fit between the water tank cover and the box body, and at the same time form the desired Clearance. Or, the protrusions can also be arranged on the side surface of the limiting part and on the side surface corresponding to the limiting part on the box body at the same time, for example, they are arranged in a staggered manner to ensure the interference between the water tank cover and the box body fit while creating the desired clearance.

As a preferred embodiment, as shown in Figures 1, 3 and 6, preferably, the opening edge of the box body 11 is provided with a lifting part 111, which is used to take out the water tank from the rice cooking equipment, for example, the user's Fingers can hold the lifting part to take out the water tank. Preferably, the height of the top surface of the lifting portion 111 is higher than the rest of the edge of the opening of the box body 11 , and when the water tank cover 12 covers the box body 11 , the water tank cover 12 does not cover the lifting portion 111 . In this case, the aforementioned gap may include the second gap 15 between the outer side of the water tank cover 12 and the inner side of the lifting part 111 . Protrusions can also be provided on the water tank cover 12 at positions corresponding to the second slit 15 , and its specific working principle is the same as that of the protrusion 123 at the first slit 14 described above. Further, the inner surface of the lifting part 111 protrudes toward the inside of the tank body 11, the outer surface of the water tank cover 12 has a space avoidance groove 124 matching the shape of the inner surface of the lifting part 111, and the second gap 15 may exist in Between the lifting part 111 and the corresponding avoidance groove 124 .

It should be noted that the second slit 15 can be set alone, or can be set together with the above-described first slit 14 to form longer (more) slits.

Whether it is the first slit or the second slit, they are narrow and long slits on the whole, and have a long slit length. Even if individual parts are blocked, it will not affect the failure of the anti-backflow measures. Therefore, compared with the water tank cover in the prior art In terms of the air hole structure above, it can significantly improve the anti-cooling water backflow effect.

Preferably, as shown in FIG. 3 , the one-way valve 132 is disposed inside the communication pipe 13 . Connecting pipe 13 is provided with connecting hole 133, and the preferred structure of one-way valve 132 can be as shown in Figure 7, and it comprises connecting portion 1321 and valve plate 1322, and one-way valve 132 is connected on connecting hole 133 by connecting portion 1321 (preferably snap-in), and cover the ventilation hole 131 through the valve plate 1322. Wherein, the valve piece 1322 can be made of elastic material, so that the ventilation hole 131 can be closed or opened by its own elastic deformation.

Preferably, as shown in Figure 1, a muffler 17 is connected to one end of the connecting pipe 13 extending into the inside of the box body 11, which can reduce the noise generated when water vapor enters the cooling water in the box body 11 through the connecting pipe 13 . Preferably, a sealing ring 16 is arranged between the muffler device 17 and the communication pipe 13, and the seal ring 16 seals between the muffler device 17 and the communication pipe 13, so as to prevent water vapor from being discharged from between the muffler device 17 and the communication pipe 13 , which improves the muting effect. More preferably, a bell mouth 171 can be provided on the port of the noise reduction device 17 to improve the noise reduction effect.

Describe the cooking equipment of the present utility model again below and in conjunction with the cooking equipment of the present utility model, the specific mode of operation of the water tank 1 for processing steam of the present utility model is explained:

The installation of the water tank 1 of the present utility model in the rice cooking equipment of the present utility model is shown in Figure 8 and Figure 9. The rice cooking equipment of the present utility model includes a device main body 2 for covering on the device main body 2 (for example, pivoting The lid body 21 that is connected on the equipment main body), and the inner pot 3 placed in the equipment main body 2. A water tank accommodating cavity (not shown) may be provided in the equipment main body 2, and the water tank 1 is placed in the water tank accommodating cavity along a direction parallel to the axis of the inner pot 3, that is, when the rice cooking equipment is placed on a horizontal plane, The water tank 1 can be placed from top to bottom.

The rice cooking equipment of the utility model has the advantages of high integrity of the main body of the equipment and simple appearance.

Further, a notch 22 is provided at the opening of the water tank accommodating cavity, for example, it can correspond to the lifting part 111 of the water tank 1. The shape and size of the notch 22 are set to facilitate taking out the water tank 1 through the notch 22, that is, the user's fingers can easily The lifting part 111 is firmly passed through the notch 22, thereby providing convenience for the installation and disassembly of the water tank 1.

The cover 21 is provided with a ventilation structure 211, such as a ventilation duct. When the rice cooking equipment is in a working state, that is, when the cover 21 is in a closed state, the ventilation structure 211 connects the inner pot 3 and the communication pipe 13 connected.

During use, pre-put a certain amount of water in the casing 11 of the water tank 1, the water tank cover 12 covers the top of the casing 11, and the connecting pipe 13 stretches into the water in the casing 11. Wherein, the vent hole 131 is arranged on the connecting pipe 13 near the water tank 12 cover, so that the vent hole 131 and the one-way valve 132 can be positioned above the cooling water in the casing 311 to ensure the reliability of the one-way valve 132. When cooking, the steam generated in the inner pot 3 enters the communication pipe 13 through the ventilation structure 211 and then enters the cooling water in the casing 11 . Since the junction of the water tank cover 12 and the box body 11 has a gap, the gas in the water tank 1 and the outside air can flow in and out through the gap. When cooking, the temperature in the inner pot 3 rises, and the water boils to generate steam. The water vapor enters the communication pipe 13 through the ventilation structure 211 and the communication hole 121 , and then enters the cooling water in the casing 11 . When the water vapor diffuses in the cooling water in the case 11, it condenses into water. At this time, the pressure of the water vapor is higher than the external atmospheric pressure, and the one-way valve 132 closes the vent hole of the communication pipe 13 under the action of the steam pressure. When the rice cooking equipment entered the stage of stewing rice, the temperature in the equipment main body 2 dropped to some extent, the air pressure decreased to some extent, and negative pressure was generated in the inner pot 3 , at this time, the check valve 132 could be pushed open. Under the effect of negative pressure, the external air enters the interior of the tank body 11 from the gap where the water tank cover 12 and the tank body 11 are joined, and then enters the inside of the communication tube 13 through the vent hole 131 of the communication tube 13, and then leaves the water tank through the communication hole 121 again. Enter the inner pot 3 through the ventilation structure 211, so that the air pressure in the inner pot 2 remains the same as the external atmospheric pressure, thereby effectively preventing the cooling water in the box 11 from flowing back into the inner pot 3.

Through the gap between the water tank cover 12 and the box body 11, the gas exchange between the box body 11 and the outside atmosphere can be realized, which can ensure the smooth flow of gas between the box body 11 and the outside world, thereby effectively preventing the cooling water in the water tank 1 from being leaked. Reverse flow occurs under the action of negative pressure, and it is not easy to fail due to blockage.

The utility model can effectively prevent the cooling water in the water tank from backflowing under the action of negative pressure. And it has the advantages of reasonable design, simple structure, easy manufacture and the like.

Those skilled in the art can easily understand that the above-mentioned measures can be freely combined and superimposed on the premise of no conflict.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (15)

1. a kind of water tank processing steam, described water tank includes casing and the tank lid in order to cover described casing, its feature It is:

When described tank lid covers on described casing, there is gap with the joint of described casing in described tank lid.

2. water tank according to claim 1 it is characterised in that:

Described tank lid has limiting section, and described gap includes the being formed between the side surface of described limiting section and described casing One gap.

3. water tank according to claim 2 it is characterised in that:

Side surface corresponding with described limiting section is provided with projection on the side surface of described limiting section and/or on casing, described water Case lid is by interference fit between described raised and described casing.

4. water tank according to claim 3 it is characterised in that:

Described limiting section is configured to be adapted to extend into the inside of described casing, and described projection is arranged on the outside table of described limiting section On face, and it is connected on the inwall of described casing.

5. water tank according to claim 3 it is characterised in that:

Described limiting section is configured to the outside being suitable to be set in described casing, and described projection is arranged on the inner side of described limiting section On surface, and it is connected on the outer wall of described casing.

6. the water tank according to claim 1 to 5 any one it is characterised in that:

The edge of opening of described casing is provided with pulling part, and the top surface of described pulling part is higher than its of the edge of opening of described casing Remaining part position, when described tank lid is when covering on described casing, described tank lid does not cover described pulling part, described gap bag Include the second gap between described tank lid outer side edges and described pulling part medial surface.

7. water tank according to claim 6 it is characterised in that:

The medial surface of described pulling part is raised towards described box house, and the lateral surface of described tank lid has and described pulling part Medial surface mating shapes keep away a groove.

8. the water tank according to claim 1 to 5 any one it is characterised in that:

Intercommunicating pore and the communicating pipe extending towards described box house from described intercommunicating pore, described company are provided with described tank lid On the side wall of siphunculus, there is passage, at described passage, be provided with check valve.

9. water tank according to claim 8 it is characterised in that:

Described check valve includes connecting portion and valve block, and described communicating pipe is additionally provided with connecting hole, and described check valve passes through described company Socket part is connected on described connecting hole, and covers described passage by described valve block.

10. water tank according to claim 8 it is characterised in that:

The one end stretching into described box house in described communicating pipe is connected with silencing means.

11. water tanks according to claim 10 it is characterised in that:

The junction of described silencing means and described communicating pipe is provided with sealing ring.

12. water tanks according to claim 10 it is characterised in that:

The port of described silencing means is provided with horn mouth.

13. one kind are cooked equipment, and it includes equipment body, for covering the lid on described equipment body and being placed on institute State interior pot in equipment body it is characterised in that:

Also include the water tank described in claim 1 to 12 any one；

Wherein, described lid is provided with ventilation device, and in the state of described lid is in closing lid, described ventilation device will be described Interior pot connects with described water tank.

14. according to claim 13 cook equipment it is characterised in that:

It is provided with water tank accommodating chamber, described water tank is placed on along the direction with the diameter parallel of described interior pot in described equipment body In described water tank accommodating chamber.

15. according to claim 14 cook equipment it is characterised in that:

At the opening of described water tank accommodating chamber, setting is jagged, and the shape and size of described breach are arranged for ease of and are lacked by described Mouth takes out described water tank.