Steam valve and rice cooker

Abstract

The present invention discloses a steam valve and an electric rice cooker. The steam valve includes a valve seat, a main cavity formed therein, and a valve port and an exhaust hole provided in the main cavity. A valve core is disposed within the valve seat, and a drive mechanism is disposed outside the valve seat. The drive mechanism transmits force through a magnetic field to drive the valve core to slide along the main cavity. When the valve core abuts the valve port, the valve port is closed; when the valve core moves away from the valve port, the valve port is opened, and exhaust is released from the valve seat through the exhaust hole. The steam valve of the present invention has the drive mechanism disposed outside the valve seat, thereby preserving the sealing properties of the valve seat.

Description

Technical Field

[0001] The invention belongs to the field of flow regulation, and in particular relates to a steam valve and an electric rice cooker. Background Art

[0002] As the pace of life quickens, consumers have an increasing demand for fast cooking. The cooking speed of an electric rice cooker is positively correlated with the heating power. In order to speed up the cooking speed, the heating power can be increased. The heating power is positively correlated with the steam channel, that is, the greater the power, the larger the steam channel is required to avoid overflow during the cooking process (such as cooking with the lid open).

[0003] The existing steam valve adjustment structure is complex, resulting in low sealing performance of the valve seat. Summary of the Invention

[0004] The present invention aims to provide a steam valve and an electric rice cooker to solve the problem of low sealing performance of the valve seat.

[0005] To achieve the above object, the specific technical solutions of the steam valve and electric rice cooker of the present invention are as follows:

[0006] A steam valve includes a valve seat, a main cavity formed in the valve seat, and a valve port and an exhaust hole in the main cavity; a valve core is provided in the valve seat, and a driving mechanism is provided outside the valve seat, which drives the valve core to slide along the main cavity through magnetic field transmission force; when the valve core abuts against the valve port, the valve port is closed; when the valve core is away from the valve port, the valve port is opened, and the valve seat is exhausted through the exhaust hole.

[0007] Furthermore, the driving mechanism includes an electromagnet, and the valve core is fixed with a permanent magnet to drive the valve core to move.

[0008] Furthermore, a sleeve is provided on the inner wall of the valve seat, and the valve core is sleeved on the sleeve and slides along the sleeve.

[0009] Furthermore, the exhaust holes are arrayed around the circumference of the sleeve on the end surface of the valve seat.

[0010] Furthermore, the valve seat is provided with an air inlet at one end of the sleeve away from the exhaust hole, the diameter of the air inlet is larger than the diameter of the valve seat, and the valve port is located between the air inlet and the sleeve.

[0011] Furthermore, the valve seat forms a bottom plate at one end of the air inlet close to the sleeve, and when the valve core closes the valve port, the valve core and the bottom plate abut against each other.

[0012] Furthermore, a through hole is formed in the center of the exhaust hole of the valve seat, and the through hole is communicated with the inner cavity of the sleeve.

[0013] Furthermore, the valve core includes a main body sleeved on the sleeve, and a convex edge is formed on the inner edge of the main body.

[0014] Furthermore, a limiting rib is sleeved on the outer side of the sleeve, and when the valve core is away from the valve port, the limiting rib abuts against the main body.

[0015] An electric rice cooker comprises the above-mentioned steam valve.

[0016] The steam valve and electric rice cooker of the present invention have the following advantages:

[0017] 1. Set the drive device outside the valve seat without damaging the sealing of the valve seat;

[0018] 2. The steam valve with variable steam channel can adjust the size of the steam channel as needed during the cooking process to ensure that a large steam channel is used when cooking with high heat to ensure that the rice slurry in the pot does not overflow; a small steam channel is used when cooking with low heat to ensure that the energy efficiency of the entire machine is not reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the steam valve of the present invention.

[0020] Description of the marks in the figure:

[0021] 1. Valve seat; 11. Valve port; 12. Exhaust hole; 13. Air inlet; 14. Through hole; 2. Valve core; 21. Main body; 22. Convex edge; 3. Electromagnet; 4. Permanent magnet; 5. Sleeve; 6. Bottom plate; 7. Limit rib. DETAILED DESCRIPTION

[0022] In order to better understand the purpose, structure and function of the present invention, a steam valve and an electric rice cooker of the present invention are further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the present invention Figure 1 As shown, the electric rice cooker of the present invention comprises a steam valve, through which the size of the steam outlet is controlled to adjust the flow rate of the steam.

[0024] The steam valve includes a valve seat 1, a main cavity is formed in the valve seat 1, and the main cavity is provided with a valve port 11 and an exhaust hole 12; a valve core 2 is provided in the valve seat 1, and a driving mechanism is provided outside the valve seat 1. The driving mechanism drives the valve core 2 to slide along the main cavity through magnetic field transmission force; when the valve core 2 abuts against the valve port 11, the valve port 11 is closed; when the valve core 2 is away from the valve port 11, the valve port 11 is opened, and the valve seat 1 is exhausted through the exhaust hole 12.

[0025] Specifically, the driving mechanism includes an electromagnet 3, and the valve core 2 is fixed with a permanent magnet 4. The electromagnet 3 switches the magnetic pole, thereby attracting or repelling the permanent magnet 4 to drive the valve core 2 to move; or the valve core 2 is driven to move by repulsion, and the valve core 2 is reset.

[0026] The inner wall of the valve seat 1 is provided with a sleeve 5, over which the valve core 2 is mounted and slides. Exhaust holes 12 are arranged in a circle around the circumference of the sleeve 5 on the end surface of the valve seat 1. The valve seat 1 has an air inlet 13 on the end of the sleeve 5 away from the exhaust holes 12. The diameter of the air inlet 13 is larger than that of the valve seat 1, and the valve port 11 is located between the air inlet 13 and the sleeve 5. A base plate 6 is formed on the end of the valve seat 1 near the sleeve 5 at the air inlet 13. When the valve core 2 closes the valve port 11, the valve core 2 and the base plate 6 abut. The electromagnet 3 is located outside the base plate 6.

[0027] The valve seat 1 is provided with a through hole 14 at the center of the exhaust hole 12, and the through hole 14 is communicated with the inner cavity of the sleeve 5 to ensure a basic steam discharge volume.

[0028] The valve core 2 comprises a main body 21 that is sleeved onto the sleeve 5. A ridge 22 is formed on the inner edge of the main body 21 to ensure proper fit between the ridge 22 and the sleeve. A retaining rib 7 is provided on the outer side of the sleeve 5. When the valve core 2 is away from the valve port 11, the retaining rib 7 and the main body 21 abut against each other, preventing the valve core 2 from escaping the magnetic field of the electromagnet 3. The ridge 22 is inserted into a groove formed between the retaining rib 7 and the sleeve 5.

[0029] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A steam valve, comprising a valve seat (1), wherein a main cavity is formed in the valve seat (1), and the main cavity is provided with a valve port (11) and an exhaust hole (12); characterized in that: A valve core (2) is provided inside the valve seat (1), and a driving mechanism is provided outside the valve seat (1). The driving mechanism drives the valve core (2) to slide along the main cavity by transmitting force through a magnetic field; when the valve core (2) abuts against the valve port (11), the valve port (11) is closed; when the valve core (2) moves away from the valve port (11), the valve port (11) is opened, and the valve seat (1) is exhausted through the exhaust hole (12); A sleeve (5) is provided on the inner wall of the valve seat (1), and the valve core (2) is sleeved on the sleeve (5) and slides along the sleeve (5); The valve core (2) comprises a main body (21) sleeved on the sleeve (5), and a convex edge (22) is formed on the inner edge of the main body (21); A limiting rib (7) is sleeved on the outer side of the sleeve (5); when the valve core (2) is away from the valve port (11), the limiting rib (7) and the main body (21) abut against each other.

2. The steam valve according to claim 1, characterized in that The driving mechanism comprises an electromagnet (3), a permanent magnet (4) is fixedly connected to the valve core (2), and the electromagnet (3) drives the valve core (2) to move.

3. The steam valve according to claim 1, characterized in that The exhaust holes (12) are arranged in an array around the circumference of the sleeve (5) on the end surface of the valve seat (1).

4. The steam valve according to claim 1, characterized in that The valve seat (1) is provided with an air inlet (13) at one end of the sleeve (5) away from the exhaust hole (12); the diameter of the air inlet (13) is larger than the diameter of the valve seat (1); and the valve port (11) is located between the air inlet (13) and the sleeve (5).

5. The steam valve according to claim 4, characterized in that The valve seat (1) forms a bottom plate (6) at one end of the air inlet (13) close to the sleeve (5). When the valve core (2) closes the valve port (11), the valve core (2) and the bottom plate (6) abut against each other.

6. The steam valve according to claim 1, characterized in that The valve seat (1) is provided with a through hole (14) at the center of the exhaust hole (12), and the through hole (14) is communicated with the inner cavity of the sleeve (5).

7. An electric rice cooker, characterized in that: Comprising the steam valve according to any one of claims 1-6.

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