Exhaust structure, cover and cooking utensil

Abstract

The present invention relates to the technical field of kitchen appliances, and in particular to an exhaust structure, a cover body and a cooking utensil. An exhaust structure comprises: a body, on which an exhaust hole is formed, the exhaust hole extends from the inside of the body toward the outside of the body and the inner diameter gradually increases; a blocking member, which is arranged in the exhaust hole and has a first position that completely blocks the exhaust hole and a second position that gradually increases the exhaust channel between the exhaust hole and the blocking member when moving from the inside of the body toward the outside of the body. The present invention provides an exhaust structure, a cover body and a cooking utensil whose pressure relief speed can be adjusted according to demand.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an exhaust structure, a cover body and a cooking utensil. Background Art

[0002] The exhaust channel of the rice cooker is generally a cylindrical through hole with a fixed area. When exhausting and relieving pressure, the pressure relief valve is usually opened directly. This exhaust method with a fixed exhaust volume has only one pressure relief speed and cannot meet different pressure requirements; and due to the small size of the exhaust hole, it is impossible to achieve rapid pressure relief to effectively solve the problem of liquid overflow in the pot. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the exhaust structure in the prior art has a fixed pressure relief speed and cannot meet actual needs, thereby providing an exhaust structure, a cover body and a cooking utensil whose pressure relief speed can be adjusted according to needs.

[0004] In order to solve the above technical problems, the present invention provides an exhaust structure, comprising:

[0005] A body, wherein a vent hole is formed on the body, and the vent hole extends from the inside of the body toward the outside of the body and the inner diameter of the vent hole gradually increases;

[0006] The blocking member is arranged in the exhaust hole and has a first position for completely blocking the exhaust hole and a second position for gradually increasing the exhaust channel between the exhaust hole and the blocking member when moving from the inside of the body toward the outside of the body.

[0007] In the exhaust structure, the exhaust hole is in the shape of an inverted cone or an inverted semicircle.

[0008] In the exhaust structure, the blocking member is an elastic sealing ring.

[0009] In the exhaust structure, the shape of the elastic sealing ring is consistent with the shape of the exhaust hole.

[0010] The exhaust structure further includes a driving assembly connected to the blocking member, and the driving assembly drives the blocking member to move toward or away from the first position.

[0011] In the exhaust structure, the driving assembly includes a rod body connected to the blocking member and a power mechanism connected to the rod body and used to drive the rod body to move up and down.

[0012] The exhaust structure, the power mechanism includes a mounting frame slidably connected to the rod body and a power member for driving the mounting frame to move horizontally, the mounting frame is formed with at least one pair of relatively arranged inclined plates, the pair of inclined plates are correspondingly distributed at intervals along the vertical direction, and have the same inclined direction, the end of the rod body away from the exhaust hole is formed with at least one pair of support rods, the pair of support rods are respectively arranged in contact with a pair of inclined plates, and under the action of the power member, the inclined plates apply an upward lifting force or a downward pressing force to the support rods.

[0013] In the exhaust structure, the power part is a gear, and a rack meshing with the gear is installed on the mounting frame.

[0014] The present invention also provides a cover body, comprising the exhaust structure.

[0015] The invention also provides a cooking utensil, comprising the cover body.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. With the exhaust structure provided by the present invention, when it is necessary to adjust the pressure relief speed inside the main body, it is only necessary to pull the blocking piece in the first position toward the outside of the main body so that the exhaust channel between the exhaust hole and the blocking piece gradually increases to the required position and is fixed. In this way, since the exhaust hole extends from the inside of the main body toward the outside of the main body and the inner diameter gradually increases, the exhaust channel can be adjusted to a suitable position as the blocking piece is pulled out, thereby meeting different pressure requirements. When rapid pressure relief is required, since the size of the exhaust hole is larger than that of the existing cylindrical through hole, the blocking piece can be directly taken out of the exhaust hole to achieve rapid pressure relief.

[0018] 2. In the exhaust structure provided by the present invention, the sealing member is an elastic sealing ring, which ensures complete sealing at the first position and accurately adjusts the size of the exhaust channel as the pulling distance changes.

[0019] 3. In the exhaust structure provided by the present invention, the shape of the elastic sealing ring is consistent with the shape of the exhaust hole, so that the exhaust channel can be gradually enlarged in a regular manner as the pulling distance of the elastic sealing ring changes, which is easy to control.

[0020] 4. The exhaust structure provided by the present invention and the setting of the driving assembly can automatically adjust the size of the exhaust channel to achieve precise control.

[0021] 5. In the exhaust structure provided by the present invention, at least one pair of inclined plates in the mounting frame and at least one pair of support rods on the rod body cooperate with each other. With the horizontal movement of the mounting frame, the rod body rises or falls, thereby driving the blocking member to move in the exhaust hole, thereby achieving the purpose of automatically and accurately adjusting the size of the exhaust channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of an exhaust structure provided by the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the body.

[0025] Description of reference numerals:

[0026] 1. Main body; 2. Sealing part; 3. Exhaust hole; 4. Rod body; 5. Mounting frame; 6. Power part; 7. Inclined plate; 8. Support rod; 9. Motor; 10. Rack. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 and 2 A specific embodiment of the exhaust structure shown includes a main body 1 and a blocking member 2. The main body 1 is a plastic part, which is easy to process and form, and has an exhaust hole 3 formed in the center, which connects the inside and outside of the main body 1. The exhaust hole 3 extends from the inside of the main body 1 toward the outside of the main body 1 and the inner diameter gradually increases. The blocking member 2 is arranged in the exhaust hole 3, and has a first position that completely blocks the exhaust hole 3 and a second position that gradually increases the exhaust channel between the exhaust hole 3 and the blocking member 2 when moving from the inside of the main body 1 toward the outside of the main body 1. When the blocking member 2 is in the first position, the pressure inside the main body 1 is the maximum. As the blocking member 2 moves away from the first position, the exhaust channel between the exhaust hole 3 and the blocking member 2 gradually increases, and correspondingly, the pressure inside the main body 1 gradually decreases.

[0030] Specifically, the exhaust hole 3 is an inverted cone, that is, the inner diameter outside the main body 1 is the largest, and the inner diameter inside the main body 1 is the smallest. Correspondingly, the plugging piece 2 is an inverted cone-shaped elastic sealing ring. When the inside of the main body 1 needs to be completely sealed to maximize the internal pressure, the elastic sealing ring completely fits the inner wall of the exhaust hole 3, and the sealing performance is ensured by interference fit; when the pressure inside the main body 1 needs to be adjusted, it is only necessary to pull the elastic sealing ring away from the first position. At this time, a gap will appear between the elastic sealing ring and the exhaust hole 3 in the same horizontal plane, forming an annular exhaust channel, so that the gas inside the main body 1 is quickly discharged along the exhaust channel, thereby adjusting the internal pressure of the main body 1. And as the elastic sealing ring is pulled upward, the cross-sectional area of ​​the exhaust hole gradually increases from bottom to top, and the cross-sectional area of ​​the plugging piece 2 in the same horizontal plane will not change, so the exhaust channel gradually increases, and the internal pressure of the main body 1 gradually decreases accordingly.

[0031] In order to facilitate the movement of the blocking member 2, a driving assembly is connected to one end of the blocking member 2 away from the inside of the main body 1, and the driving assembly drives the blocking member 2 to move axially along the exhaust hole 3. Specifically, the driving assembly includes a rod body 4 connected to the blocking member 2 and a power mechanism connected to the rod body 4 and used to drive the rod body 4 to move up and down. The power mechanism includes a mounting frame 5 slidably connected to the rod body 4 and a power member 6 used to drive the mounting frame 5 to move horizontally. A accommodating space for the rod body 4 is provided inside the mounting frame 5, and a pair of inclined plates 7 are respectively provided at the upper and lower parts of the accommodating space. The pair of inclined plates 7 in the same vertical plane are distributed at intervals and in the same inclination direction. The pair of inclined plates 7 in the same horizontal plane are distributed in parallel. Two pairs of support rods 8 are formed at one end of the rod body 4 away from the exhaust hole 3, and the two pairs of support rods 8 are spaced apart in the vertical direction. A pair of the support rods 8 in the same vertical plane are respectively in contact with an upper inclined plate 7 and a lower inclined plate 7, and the power member 6 drives the mounting frame 5 to move horizontally, so that the lower inclined plate 7 applies an upward lifting force to the lower support rod 8 or the upper inclined plate 7 applies a downward pressing force to the upper support rod 8, thereby opening or sealing the exhaust hole 3.

[0032] Specifically, the power member 6 is a gear connected to the output shaft of the motor 9, and a rack 10 meshing with the gear is installed on the mounting frame 5. The motor 9 drives the gear to rotate, and the rack 10 moves horizontally through meshing, thereby driving the mounting frame 5 to move horizontally.

[0033] When the interior of the body 1 needs to be completely sealed, the elastic sealing ring is completely fitted inside the exhaust hole 3, that is, it is in the first position, and at this time, the two pairs of support rods 8 of the rod body 4 are respectively in contact with the lowest point of the upper inclined plate 7 and the lowest point of the lower inclined plate 7. When the pressure inside the body 1 needs to be relieved, it is only necessary to turn on the motor 9, and the mounting frame 5 is driven to move horizontally to the left through the meshing action of the gear and the rack 10. At this time, the support rod 8 at the bottom of the rod body 4 is subjected to the upward lifting force applied by the lower inclined plate 7, so that the rod body 4 moves upward as a whole, thereby driving the elastic sealing ring to gradually open the exhaust hole 3 for gradient pressure relief. When the support rod 8 at the bottom of the rod body 4 moves to the highest point of the lower inclined plate 7, the exhaust hole 3 is fully opened. When the exhaust hole 3 needs to be sealed again, the motor 9 only needs to rotate in the opposite direction to drive the mounting frame 5 to move horizontally to the right through the meshing action of the gear and the rack 10. At this time, the support rod 8 at the top of the rod body 4 is subjected to the downward pressing force applied by the upper inclined plate 7, so that the rod body 4 moves downward as a whole, thereby driving the elastic sealing ring to gradually close the exhaust hole 3 to achieve sealing.

[0034] As an alternative embodiment, the exhaust hole 3 may also be in an inverted semicircle.

[0035] As an alternative embodiment, the driving assembly may also be a lifting frame, which directly drives the rod body 4 to move up and down.

[0036] As an alternative implementation, the power component 6 may also be a cylinder, a hydraulic cylinder or a solenoid valve.

[0037] As an alternative embodiment, a support rod 8 is formed at one end of the rod body 4 away from the exhaust hole 3, and the diameter of the support rod 8 is equal to the distance between a pair of inclined plates 7 on the same vertical plane, that is, the support rod 8 is in contact with the pair of inclined plates 7 on the same vertical plane at the same time. In this way, when the mounting frame 5 moves horizontally to the left, the lower surface of the support rod 8 is subjected to an upward lifting force applied by the inclined plate 7 at the lower part of the mounting frame 5, and when the mounting frame 5 moves horizontally to the right, the upper surface of the support rod 8 is subjected to a downward pressing force applied by the inclined plate 7 at the upper part of the mounting frame 5.

[0038] As an alternative embodiment, a pair of inclined plates 7 on the same vertical plane may also be staggered, as long as it is ensured that when the mounting frame 5 moves horizontally to the left, the support rod 8 at the lower part of the rod body 4 maintains contact with the inclined plate 7 at the lower part of the mounting frame 5 and is lifted upward, and when the mounting frame 5 moves horizontally to the right, the support rod 8 at the upper part of the rod body 4 maintains contact with the inclined plate 7 at the upper part of the mounting frame 5 and slides downward.

[0039] The present invention also provides a cover body, comprising the exhaust structure.

[0040] The present invention also provides a cooking utensil, comprising the cover body, which can be an electric rice cooker, a pressure cooker, etc., and the cover body is detachably connected to the inner pot.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An exhaust structure, characterized in that: include: A body (1), wherein a vent hole (3) is formed on the body (1), and the vent hole (3) extends from the inside of the body (1) toward the outside of the body (1) and the inner diameter of the vent hole (3) gradually increases; a blocking member (2) disposed in the exhaust hole (3) and having a first position for completely blocking the exhaust hole (3) and a second position for gradually increasing the exhaust passage between the exhaust hole (3) and the blocking member (2) when moving from the inside of the body (1) toward the outside of the body (1); It also comprises a driving assembly connected to the blocking member (2), wherein the driving assembly drives the blocking member (2) to move toward or away from the first position; The driving assembly comprises a rod body (4) connected to the blocking member (2) and a power mechanism connected to the rod body (4) and used for driving the rod body (4) to move up and down; The power mechanism comprises a mounting frame (5) slidably connected to the rod body (4) and a power member (6) for driving the mounting frame (5) to move horizontally. The mounting frame (5) is formed with at least one pair of inclined plates (7) arranged opposite to each other. The pair of inclined plates (7) are spaced and distributed correspondingly in the vertical direction and have the same inclined direction. At least one pair of support rods (8) is formed at one end of the rod body (4) away from the exhaust hole (3). The pair of support rods (8) are respectively arranged in contact with the pair of inclined plates (7). Under the action of the power member (6), the inclined plates (7) exert an upward lifting force or a downward pressing force on the support rods (8).

2. The exhaust structure according to claim 1, characterized in that: The exhaust hole (3) is in the shape of an inverted cone or an inverted semicircle.

3. The exhaust structure according to claim 1 or 2, characterized in that: The blocking member (2) is an elastic sealing ring.

4. The exhaust structure according to claim 3, characterized in that: The shape of the elastic sealing ring is consistent with the shape of the exhaust hole (3).

5. The exhaust structure according to claim 1, characterized in that: The power member (6) is a gear, and a rack (10) meshingly connected with the gear is mounted on the mounting frame (5).

6. A cover, characterized in that: It comprises the exhaust structure as described in any one of claims 1 to 5.

7. A cooking utensil, characterized in that: Comprising the cover body described in claim 6.

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