KR100736780B1 - Safety device of electric pressure cooker - Google Patents

Abstract

A safety device of an electric pressure cooker is provided to improve an assembly by simplifying components and to increase productivity by using a single safety lever. A safety device of an electric pressure cooker includes an inner pot cover(200), a cover open blocking unit(500), a locking frame(300), a rotation member(400), and a safety lever(700). The inner cover is installed at a bottom surface of a body cover(100) and opens and closes an inner pot(800). The cover open blocking unit includes a projecting pin(510). The projecting pin projects to a top of the inner pot cover when an internal pressure of the inner pot exceeds a preset pressure. The safety lever is linked to the rotation member directly for a straight movement and is suspended by the projecting pin when the inner pot and the locking frame are locked for cooking and blocking the rotation toward a lock releasing direction of the rotation member.

Description

Safety device of electric pressure cooker

1 is a perspective view showing a cover of a general electric pressure cooker.

FIG. 2 is a plan view illustrating a locking frame and a lid opening preventing part in a cover part of the electric pressure cooker shown in FIG. 1.

Figure 3 is a schematic cross-sectional view showing a safety device of the electric pressure cooker according to an embodiment of the present invention.

Figure 4 is an exploded perspective view showing a safety device of the electric pressure cooker according to an embodiment of the present invention.

5 is a plan view illustrating an operating state when the inner pot and the locking frame are locked in the safety device of the electric pressure cooker according to the embodiment of the present invention.

Figure 6 is a cross-sectional view showing the operating state when the inner pot and the locking frame is locked in the safety device of the electric pressure cooker according to an embodiment of the present invention.

7 is a plan view illustrating an operating state when the inner pot and the locking frame are unlocked in the safety device of the electric pressure cooker according to the embodiment of the present invention.

8 is a cross-sectional view showing an operating state when the inner pot and the locking frame are unlocked in the safety device of the electric pressure cooker according to the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: body cover 200: inner pot cover

201: Installation 210: Packing

300: locking frame 310: guide protrusion

400: rotation base 410: first lever

420: second lever 421: projection

500: lid open prevention unit 600: residual vapor discharge unit

610: opening and closing weight 620: lifting pin

700: safety lever 710: long

720: insertion hole 730: guide slot

740: inclined contact portion 800: inner pot

The present invention relates to a safety device of an electric pressure cooker, and more particularly, to a safety device of an electric pressure cooker which prevents the opening of the inner pot by an arbitrary operation during cooking and discharges residual steam by the opening operation.

In general, an electric pressure cooker is a cooking utensil for cooking food in a short time by heating the inner pot in an enclosed space to increase the pressure in the inner pot and shorten the cooking time significantly from normal pressure.

The electric pressure cooker usually includes an inner pot for accommodating food to be cooked, a main body portion for receiving and heating the inner pot, and a lid portion hinged to one side of the main body portion to open and close the main body portion and the inner pot.

1 is a perspective view showing a cover of a general electric pressure cooker, Figure 2 is a plan view showing a locking frame and the lid opening preventing portion in the cover of the electric pressure cooker shown in FIG.

1 and 2, the cover portion of a general electric pressure cooker is hinged to the main body portion (not shown) of the hinge coupling portion 11 of one side to open and close the body portion and the inner pot.

The cover part includes a body cover 10 that forms an outer and inner frame, the body cover 10 is the inner pot cover 20 to maintain the pressure of the inner pot by pressing and sealing the opening of the inner pot on its bottom surface Is installed. In particular, the inner pot cover 20 is provided with a packing 21 on the bottom to completely seal the upper edge of the inner pot.

As such, the inner pot cover 20 and the inner pot packing 21 are fixedly installed on the lower side of the body cover 10, and are tightly coupled to the inner pot while maintaining a high pressure by the locking frame 30 when cooking.

The locking frame 30 is installed between the body cover 10 and the inner pot cover 20, for example, die-cast aluminum, the engaging piece 31 of the shape bent inward at equal intervals in the lower outer edge is formed do.

Therefore, the locking frame 30 may be rotated by the rotation operation of the chuck 40 rotatably installed on the body cover 10, the engaging piece 31 of the engaging piece (not shown) formed in the inner pot If it is overlapped with, it remains locked and if it is staggered, it remains unlocked.

In addition, the cover of the electric pressure cooker includes a lid opening preventing portion 50 in which the protruding pin 51 is protruded upward by the steam pressure when the internal pressure of the inner pot increases above the set pressure during cooking.

That is, the cover portion of the electric pressure cooker generates high-temperature, high-pressure steam inside the inner pot when cooking is in progress, thereby preventing the user from being damaged by the user's arbitrary operation in order to prevent the accident by the inner pot and the lock frame 30 The locking state of the lock must not be released.

Specifically, when the protruding pin 51 of the lid opening preventing portion 50 protrudes upwards of the inner pot cover 20, the user locks as shown in FIG. 2 even if the user arbitrarily applies a rotation operation force to the chuck 40. Since the protruding piece 32 of the frame 30 does not rotate in contact with the protruding pin 51, the locking engagement state between the inner pot and the locking frame 30 is not released.

And the cover portion of the electric pressure cooker includes a residual steam discharge portion 60 for discharging the residual steam in the inner pot when the cooking is completed.

Specifically, the residual steam discharge unit 60 is rotated by the lifting pin 62 when the chuck 40 is rotated in the direction to unlock the inner pot and the locking frame 30 to rotate the opening and closing weight 61. Therefore, the residual steam inside the inner pot is discharged.

That is, the chuck 40 has a cam contact portion formed on the bottom thereof, and lowers one side of the lever 70 during the rotation operation to release the locking engagement state of the inner pot and the locking frame 30.

Therefore, while the other side of the lever 70 is raised, the lifting pin 60 is raised, and the opening and closing weight 61 is rotated by the raising of the lifting pin 60 to discharge residual steam inside the inner pot.

As described above, the electric pressure cooker must maintain the lock-coupled state of the inner pot when cooking, as well as discharge residual steam inside the inner pot when the cooking is completed, so that the components for performing this are respectively installed to increase the cost and the inside of the cover. Has the disadvantage of becoming complicated.

In view of the above problems, the present invention provides a safety device of an electric pressure cooker that restricts rotation of the inner pot and the locking frame in a direction of cooking by a relatively simple structure and discharges residual steam inside the inner pot when cooking is completed. The purpose is.

The present invention for achieving the above object, is installed on the bottom of the body cover inner pot cover for opening and closing the inner pot, preventing the lid opening including a protrusion pin protruding to the upper side of the inner pot cover when the inner pressure of the inner pot exceeds the set pressure. And a lock frame for locking or unlocking the inner pot to maintain or release an opening / closing state for the inner pot of the inner pot cover, and rotating the locking frame to lock or lock the lock frame to the inner pot. And a rotation lever connected to the rotation base and linearly connected to the rotation base, and the inner lever and the locking frame are coupled to each other so that the locking lever engages with the protruding pin during cooking and restricts rotation of the rotation base in the unlocking direction. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It is not. Like numbers refer to like elements in the figures.

Figure 3 is a cross-sectional view schematically showing a safety device of the electric pressure cooker according to an embodiment of the present invention, Figure 4 is an exploded perspective view showing a safety device of the electric pressure cooker according to an embodiment of the present invention. to be.

3 and 4, the safety device of the electric pressure cooker according to an embodiment of the present invention, the inner pot cover 200 for opening and closing the inner pot 800 is installed on the bottom of the body cover 100, and When the internal pressure of the inner pot 800 exceeds the set pressure, the lid opening preventing part 500 including a protruding pin 510 protruding to the upper side of the inner pot cover 200 and the inner pot 800 is locked or unlocked. Locking frame 300 for maintaining or releasing the opening and closing state for the inner pot 800 of the inner pot cover 200 and the locking frame 300 by rotating the locking frame 300 to the inner pot 800 Rotating base (400) for locking engagement or unlocking, and the linear movement by linking with the rotation base 400, the inner pot (800) and the locking frame (300) is coupled to the locking protruding pin 510 during cooking progress Safety lever 700 for limiting the rotation direction of the unlocking direction of the rotation base 400 by engaging the contact It includes.

The body cover 100 is rotated around the hinge shaft 101 to the main body portion (not shown) for accommodating the inner pot 800 to cover the main body portion with a component that opens and closes the main body portion and the inner pot 800. The inner frame 120 that faces the inner pot 800 side of the main body portion without being exposed to the outside and the outside exposed to the outside at the time.

The inner pot cover 200 is installed on the bottom of the inner frame 120 to open and close the opening of the inner pot 800, the installation hole 201 is formed is provided with a lid opening preventing portion 500 to be described later.

For example, the inner pot cover 200 is provided with a packing 210 on the bottom to completely seal the upper edge of the inner pot 800.

The lid opening preventing portion 500 is extended by the inner packing by the ductility when the internal pressure of the inner pot 800 exceeds the set pressure to push the protrusion pin 510 upwards to protrude.

On the other hand, the lid opening preventing unit 500 may include a through hole 501 for discharging the steam in the inner pot 800 when the inner packing is damaged.

When the locking frame 300 is rotated along the guide hole 121 of the inner frame 120 by the rotation operation of the rotating base 400 to be described later, as described above in the prior art The locking piece 301 of the locking frame 300 is locked to or unlocked from the inner pot 800 by being overlapped with or interlaced with the locking piece 801 of the inner pot 800.

The rotating base 400 is a component for operating the locking frame 300 and a component for operating the safety lever 700 to be described later.

The rotation base 400 may be coupled to the handle 430 at the top to facilitate the user to rotate, the first lever 410 and the safety lever coupled to the guide protrusion 310 of the lock frame 300 ( And a second lever 420 having a protrusion 421 inserted into the long hole 710 of the 700.

The safety lever 700 has a long hole 710 is inserted into the projection 421 of the rotating base 400 to convert the rotational movement of the rotating base 400 to a linear motion, and the internal pressure of the inner pot 800 is set pressure When exceeding the insertion hole 720 is inserted into the protruding pin 510 of the lid opening preventing portion 500 protrudes upward, and the linear movement is guided along the direction of linear movement during rotation of the rotation base 400 It comprises a guide long hole 730 is formed.

In particular, since the fastener base 731 is coupled to the inner frame 120 through the guide long hole 730, the safety lever 700 is guided linear movement during the rotational movement of the rotation base 700.

In the above configuration, when the inner pot 800 is opened by lifting the lifting pin 620 installed in the body cover 100 further residual steam discharge portion 600 for discharging the residual steam in the inner pot (800) It is preferable to include.

Therefore, when the inner pot 800 is opened after cooking is completed, residual steam in the inner pot 800 may be discharged, thereby reducing the risk of a safety accident.

In the above configuration, the safety lever 700 raises and lowers the lifting pins 620 of the residual vapor discharge unit 600 during the rotation of the unlocking direction of the rotational base 400 to open and close weights 610 of the residual vapor discharge unit 600. It is preferable to further include an inclined contact portion 740 for rotating ().

Therefore, the safety lever 700 moves linearly in interlocking motion in the unlocking direction of the rotation base 400, but raises the lifting pin 620 supported by the inclined contact portion 740. As described above, the residual steam discharge unit 600 is operated to discharge residual steam inside the inner pot 800 during the rotation of the unlocking direction of the rotation base 400.

5 is a plan view showing an operating state when the inner pot and the locking frame is locked in the safety device of the electric pressure cooker according to an embodiment of the present invention, Figure 6 is an electric pressure cooker according to an embodiment of the present invention In the safety device of the inner pot and the locking frame is a cross-sectional view showing the operating state when the lock is coupled.

Referring to FIGS. 5 and 6, when the rotating base 400 is rotated clockwise to lock the inner pot 800 and the locking frame 300, the safety lever 700 linked to the rotating base 400 is straight. Is moved.

In particular, when the rotation base 400 is completely rotated in the clockwise direction within the length of the guide hole 121 of the inner frame 120, the safety lever 700 is inserted hole 720 of the lid opening preventing portion 500 Coincides with the protruding pin 510.

Therefore, the inner pot 800 is heated to increase the internal pressure of the inner pot 800, and when the inner pressure of the inner pot 800 exceeds the set pressure, the protruding pin 510 is raised to be inserted into the insertion hole 720.

As such, when the internal pressure of the inner pot 800 exceeds the set pressure, and the protruding pin 510 is inserted into the insertion hole 720, the user arbitrarily manipulates the rotation base 400 so that the inner pot 800 and the locking frame 300 are provided. Even when trying to release the lock coupling state of the rotational base 400 is not rotated in the unlocking direction there is an advantage that the lock coupling state of the inner pot 800 and the locking frame 300 is not released.

Figure 7 is a plan view showing the operating state when the inner pot and the locking frame is unlocked in the safety device of the electric pressure cooker according to an embodiment of the present invention, Figure 8 is an electric pressure cooker according to an embodiment of the present invention This is a cross-sectional view showing the operating state when the inner pot and the locking frame are unlocked in the safety device.

7 and 8, after the cooking is completed, since the internal pressure of the inner pot 800 drops below the set pressure, the protruding pin 510 is retracted from the insertion hole 720 of the safety lever 700 so as to be lowered. Keep it.

In this state, when the rotating base 400 is rotated counterclockwise so that the inner pot 800 and the locking frame 300 are unlocked, the safety lever 700 linked to the rotating base 400 is linearly moved.

In particular, the elevating pin 620 supported by the inclined contact portion 740 of the safety lever 700 is inclined in contact with the inclined contact portion 740 and rises upward.

Therefore, since the lifting pin 620 is raised to rotate the opening and closing weight 610 of the residual steam discharge part 600, the residual steam discharge part 600 is operated to discharge residual steam inside the inner pot 800.

As such, the residual steam discharge unit 600 is operated to discharge residual steam inside the inner pot 800 during the rotation of the rotating base 400 for unlocking the inner pot 800 and the locking frame 300.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the concept of the present invention. Various changes and modifications are possible by the user.

As described above, the present invention, as a single safety lever serves to prevent the random opening of the inner pot and the locking frame during cooking and acts to operate the residual steam discharge unit after the completion of cooking, assembling properties due to the simplification of the components Not only improves, but also improves the efficiency of production.

Claims (4)

An inner pot cover installed on the bottom of the body cover to open and close the inner pot; A lid opening preventing part including a protruding pin protruding to the upper side of the inner pot cover when the inner pressure of the inner pot exceeds a set pressure; A lock frame coupled to or unlocked from the inner pot to maintain or release an opening / closing state of the inner pot of the inner pot cover; Rotating material for rotating the locking frame to lock or unlock the locking frame to the inner pot; And An electric pressure cooker comprising a safety lever connected to the rotational base and linearly connected, and the inner pot and the locking frame are coupled to each other so that the locking lever is in contact with the protruding pin to limit the unlocking direction of the rotational base when the cooking proceeds. Safety device. The method of claim 1, The safety lever, A long hole into which the projection of the pivot base is inserted to convert the rotational movement of the pivot base into a linear motion; An insertion hole into which the protruding pin is protruded upward when the internal pressure of the inner pot exceeds a set pressure; And Safety device of an electric pressure cooker comprising a guide long hole formed along the direction of the linear movement so that the linear movement is guided during the rotation of the rotating base. The method according to claim 1 or 2, Safety device of the electric pressure cooker further comprises a residual steam discharge portion for discharging the residual steam in the inner pot by elevating the lifting pin installed on the body cover when the inner pot is opened. The method of claim 3, The safety lever, The safety device of the electric pressure cooker further comprises an inclined contact portion for operating the residual steam discharge portion by raising the lifting pin of the residual steam discharge portion during the rotation of the rotational unlocking direction.

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