KR102591010B1 - Lid locking device of pressure cooker - Google Patents

Abstract

The present invention relates to a lid locking device for a pressure cooker. To be described in more detail, the container flange 11 provided in the cooking vessel 10 and the lid flange 21 provided in the lid 20 are surrounded on both sides. The first opening and closing member 30 and the second opening and closing member 40 are installed, and the interlocking member 50 connects both opening and closing members 30 and 40 to move in opposite directions, and the opening and closing members 30 and 40 ) includes a cover member (60) that covers the horizontal operating arms (33, 43) and the interlocking member (50) together, and a lever unit (70) that operates the opening and closing members (30, 40) to the locked or open position. It relates to a lid locking device for a pressure cooker, which is configured as follows.

Description

Lid locking device of pressure cooker}

The present invention relates to a lid locking device for a pressure cooker. To be described in more detail, the container flange 11 provided in the cooking vessel 10 and the lid flange 21 provided in the lid 20 are surrounded on both sides. The first opening and closing member 30 and the second opening and closing member 40 are installed, and the interlocking member 50 connects both opening and closing members 30 and 40 to move in opposite directions, and the opening and closing members 30 and 40 ) includes a cover member (60) that covers the horizontal operating arms (33, 43) and the interlocking member (50) together, and a lever unit (70) that operates the opening and closing members (30, 40) to the locked or open position. It relates to a lid locking device for a pressure cooker, which is configured as follows.

In general, a pressure cooker refers to a cooking utensil that allows food contained in the cooking space inside the container to be cooked quickly by maintaining the inside of the container at high temperature and pressure by sealing the container and the lid. Since these pressure cookers are cooked at high temperature and pressure, a lid lock is required to prevent safety accidents.

The lid locking device of a conventional pressure cooker was configured so that when the lid was rotated at a certain angle, a locking groove formed on the outer periphery of the container and a locking piece formed on the inner periphery of the lid engaged with each other. This structure had a problem in that it was not easy to open and close the lid because each time the lid was opened and closed, the entire lid had to be rotated back and forth to check the positions of the locking pieces and locking grooves.

In order to solve this problem, Registered Utility Model No. 20-0487953 (November 20, 2018) discloses a pressure cooker that opens and closes the lid by rotating the rotating handle installed on the lid, and Registered Patent No. 10-2034623 (2019) On October 15, 2012, a pressure cooker was disclosed that opens and closes the lid by pressing the lock or release button.

In addition, Registered Patent No. 10-2469784 (November 17, 2022) discloses a pressure cooker configured to open and close the lid 100 by lying the rotation handle 440 to the side or standing it up, as shown in attached FIG. 1. Specifically, an operating shaft 430 is rotatably installed in the installation groove 422 of the main frame 420 coupled to the lid 100, and both ends of the operating shaft 430 are provided with both sides of the rotating handle 440. The ends are joined.

And the operating shaft 430 is provided with a moving groove 432 that engages the moving pin 133 of the clamp 130 in the circumferential direction. Therefore, when the rotating handle 440 is laid forward or raised up, the operating shaft 430 rotates and the moving pin 133 of the clamp 130 moves along the moving groove 432, and the moving pin 133 The lid 100 is opened and closed as both clamps 130 approach or move away from each other.

Registered Utility Model No. 20-0308613 (March 12, 2003) Registered Utility Model No. 20-0487953 (November 20, 2018) Registered Patent No. 10-2034623 (October 15, 2019) Registered Patent No. 10-2469784 (November 17, 2022)

As discussed above, the lid locking device of a conventional pressure cooker had a problem in that it was not easy to open and close, or the overall structure was too complicated.

Accordingly, the problem to be solved by the present invention is to provide a lid locking device for a pressure cooker that has a simple overall operating structure and is easy to open and close.

Another problem to be solved by the present invention is to provide a lid locking device for a pressure cooker that the user can open and close with one hand.

Hereinafter, in the present invention, each component is given a unique name and reference number regardless of FIG. 1.

The present invention includes a cooking container (10) equipped with a container flange (11) at the top of the border surrounding the cooking space, and a lid (20) provided with a lid flange (21) corresponding to the container flange (11). In the lid locking device of a pressure cooker,

' surrounding the container flange (11) and the lid flange (21) together. '-shaped grip portion 31, a vertical operation arm 32 extending upward from the grip portion 31 close to the side 20a of the lid 20, and an upper end of the vertical operation arm 32. A horizontal operating arm 33 that is bent and extended toward the center of the upper surface 20b of the lid 20, a through hole 34 drilled in an inner end of the horizontal operating arm 33, and the horizontal operating arm 33. ) and a first opening and closing member (30) including an upwardly protruding shaft protrusion (35) in the middle portion of );

It is disposed opposite to the first opening and closing member 30, and surrounds the container flange 11 and the lid flange 21 together. '-shaped grip portion 41, a vertical operation arm 42 extending upward from the grip portion 41 close to the side 20a of the lid 20, and an upper end of the vertical operation arm 42. A second opening and closing member ( 40) and;

an interlocking member 50 disposed at the center of the upper surface 20b of the lid 20 and moving the first opening and closing member 30 and the second opening and closing member 20 in opposite directions;

It is fixedly coupled to the upper surface 20b of the lid 20 to connect the horizontal operating arm 33 of the first opening and closing member 30, the horizontal operating arm 43 and the interlocking member 50 of the second opening and closing member 40. A cover member (60) consisting of a cover plate (61) that covers the cover plate (61) and a lid handle (62) installed on the upper surface of the cover plate (61);

A pivoting piece 71 rotatably installed on the bottom of the cover plate 61, and a protrusion perforated on one side of the pivoting piece 71 into which the shaft projection 35 of the first opening and closing member 30 is inserted. An insertion hole 72, a lever shaft 73 that rotatably supports the pivot piece 71 on the cover member 60, and a lever shaft 73 that protrudes from the lever shaft 73 and is exposed outside the cover member 60. Lever unit 70 having an operating lever 74; It is characterized by being composed of a.

The interlocking member 50 includes a central axis 51 protruding from the center of the upper surface 20b of the lid 20, a seesaw plate 52 rotatably supported on the central axis 51, and the seesaw. A first seesaw protrusion 53 protruding on one side of the plate 52 and inserted into the through hole 34 of the first opening and closing member 30, and a second opening and closing member (53) protruding on the other side of the seesaw plate 52. It is characterized by being composed of a second seesaw protrusion 54 inserted into the through hole 44 of 40).

The lid handle 62 of the cover member 60 is supported on the upper surface of the cover plate 61 by the handle support part 63, and the lever shaft 73 is accommodated in the handle support part 63. The handle support portion 63 is characterized by being provided with a lever exposure hole 63a that exposes the operation lever 74.

The lid locking device for a pressure cooker according to the present invention has a simple overall operating structure, and the user holds the lid handle 62 with one hand and rotates the operating lever 74 with the thumb of that hand to close the lid 20. It has the effect of being able to be easily operated in a locked or open state.

Figure 1 is a diagram illustrating a lid locking device of a conventional pressure cooker;
Figure 2 is a perspective view of a pressure cooker consisting of a cooking vessel 10 and a lid 20 in the present invention;
Figure 3 is an exploded perspective view of the lid 20 and the cover member 60 in the present invention;
Figure 4 is an exploded perspective view of the lid 20 and the opening and closing members 30 and 40 in the present invention;
Figure 5 is an exploded perspective view of the cover member 60 and the lever unit 70 in the present invention;
Figure 6a is an explanatory diagram showing the locked state of the lid 20 in the present invention;
Figure 6b is an explanatory diagram showing the open state of the lid 20 in the present invention.

Hereinafter, the present invention will be described in detail using the attached drawings. However, since the accompanying drawings illustrate preferred embodiments of the present invention, the scope of the present invention is not limited by these embodiments. In addition, even if the configuration is essential for carrying out the present invention, detailed description will be omitted for matters that are introduced in the prior art or that can be easily implemented by a person skilled in the art from the known technology.

And among the components belonging to the present invention, the name ‘˜unit’ refers to a unit that processes at least one common function or operation, and can be implemented by hardware, software, or a combination thereof. Additionally, ‘including’ a certain component means that other components can be included as needed in addition to the specified component.

The present invention relates to a lid locking device for a pressure cooker consisting of a cooking vessel 10 and a lid 20, as shown in FIG. 2. First, the cooking container 10 has a cooking space inside, like a typical pressure cooker, and a container flange 11 protruding outward is provided at the top of the rim surrounding the cooking space, and a typical container handle is placed on both sides. (12) can be installed.

Next, the lid 20 covers the cooking space of the cooking container 10, and is provided with a lid flange 21 corresponding to the container flange 11. Therefore, when the lid 20 is placed on the cooking container 10, the lid flange 21 overlaps the container flange 11. An airtight packing (not shown in the drawing) may be installed between the container flange 11 and the lid flange 21.

The lid locking device according to the present invention includes a first opening and closing member (30) and a second opening and closing member (40) installed to surround the container flange (11) and the lid flange (21) from both sides, and both opening and closing members (30). , an interlocking member (50) that connects the opening and closing members (30, 40) to move in opposite directions, and a cover member (60) that covers the horizontal operating arms (33, 43) and the interlocking member (50) of the opening and closing members (30, 40). and a lever unit 70 that operates the opening and closing members 30 and 40 to the locked or open position.

First, the first opening and closing member 30 includes a grip portion 31, a vertical operating arm 32, a horizontal operating arm 33, a through hole 34, and an axis protrusion 35, as shown in FIGS. 3 and 4. do. The grip portion 31 has a cross-section that surrounds the container flange 11 and the lid flange 21 in the vertical direction. ' It is formed in the shape of a letter. And in the longitudinal direction, it is formed in an arc shape to surround the container flange 11 and the lid flange 21 by a predetermined section in the circumferential direction.

Next, the vertical operation arm 32 extends upward from the grip portion 31 toward the upper surface 20b of the lid 20 in a state close to the side 20a of the lid 20. The horizontal operating arm 33 is bent at the upper end of the vertical operating arm 32 and extends toward the center while being close to the upper surface 20b of the lid 20.

The through hole 34 is drilled at the inner end of the horizontal operation arm 33, that is, on the opposite side of the vertical operation arm 32, and the shaft projection 35 protrudes upward in the middle of the horizontal operation arm 33. It is done. The axial protrusion 35 is preferably located in a position slightly biased outward from the middle position of the horizontal operation arm 33, that is, toward the vertical operation arm 32.

Next, the second opening and closing member 40 is arranged to face the first opening and closing member 30 based on the center of the upper surface 20b of the lid 20, and includes a grip portion 41 and a vertical operating arm 42. , It is composed of a horizontal operating arm (43) and a through hole (44). The structure of the second opening and closing member 40 is almost the same as that of the first opening and closing member 30 except that the structure corresponding to the shaft protrusion 35 is omitted. Therefore, the through hole 34 of the first opening and closing member 30 and the through hole 44 of the second opening and closing member 40 are close to each other at the center of the upper surface 20b of the lid 20.

The interlocking member 50 connects both opening and closing members 30 and 40 to each other, and as shown in Figure 4, it has a central axis 51, a seesaw plate 52, a first seesaw protrusion 53, and a second seesaw protrusion ( 54). The central axis 51 protrudes from the center of the upper surface 20b of the lid 20, and the seesaw plate 52 is rotatably supported on the central axis 51.

In addition, the first seesaw protrusion 53 protrudes on one side of the seesaw plate 52, and the second seesaw protrusion 54 protrudes on the other side of the seesaw plate 52. That is, the first seesaw protrusion 53 and the second seesaw protrusion 54 are arranged on opposite sides of the central axis 51. The first seesaw protrusion 53 is inserted into the through hole 34 of the first opening and closing member 30, and the second seesaw protrusion 54 is inserted into the through hole 44 of the second opening and closing member 40. .

When the seesaw plate 52 rotates, the horizontal operating arm 33 of the first opening and closing member 30 and the horizontal operating arm 33 of the second opening and closing member 40 move in opposite directions. That is, the grip portion 31 of the first opening and closing member 30 and the grip portion 41 of the second opening and closing member 40 move in a direction toward each other or move in a direction away from each other.

Therefore, when the first opening and closing member 30 and the second opening and closing member 40 approach each other, both grip parts 31 and 41 are fastened to both flanges 11 and 21, thereby creating a locked state in which the lid 20 cannot be opened. do. Conversely, when the first opening and closing member 30 and the second opening and closing member 40 move away from each other, both grip parts 31 and 41 separate from both flanges 11 and 21, and the lid 20 is in an open state in which the lid 20 can be opened. It becomes.

A safety lifting valve 22 may be installed on the upper surface 20b of the lid 20, which rises above the upper surface 20b due to the pressure when the pressure inside the cooking space increases in the locked state. In addition, an opening stopper 33a corresponding to the safety lifting valve 22 may be installed on the horizontal operating arm 33 of the first opening and closing member 30.

Therefore, when the safety lifting valve 22 rises, the opening stopper 33a is caught by the safety lifting valve 22 and prevents the horizontal operating arm 33 from moving from the locked position to the open position. However, when the pressure inside the cooking space is lowered, the safety lifting valve 23 is lowered by its own weight, allowing the horizontal operating arm 33 to move to the open position. Therefore, the lid 20 is never opened when the pressure inside the cooking space is high.

The cover member 60 includes a cover plate 61 and a lid handle 62. The cover plate 61 is fixedly coupled to the upper surface 20b of the lid 20 by, for example, a fixing screw (not shown in the drawing), and is connected to the horizontal operating arm 33 of the first opening and closing member 30 and the second opening and closing member 30. 2 Cover the horizontal operating arm (43) and the interlocking member (50) of the opening and closing member (40) together.

On the bottom of the cover plate 61 of the cover member 60, there is a guide groove that guides the movement of the horizontal operating arm 33 of the first opening and closing member 30 and the horizontal operating arm 43 of the second opening and closing member 40. (61a) can be provided. Along the guide groove (61a), both horizontal operating arms (33, 43) stably move in opposite directions with the interlocking member (50) as the center.

The lid handle 62 is installed on the upper surface of the cover plate 61, and is supported on the upper surface of the cover plate 61 by the handle support portion 63. In the attached drawing, a structure in which the handle support portion 63 is installed at both ends of the lid handle 62 is illustrated, but the handle support portion 63 may be installed only at one end of the lid handle 62.

Lastly, the lever unit 70 includes a rotating piece 71, a protruding insertion hole 72, a lever shaft 73, and an operating lever 74, as shown in FIG. 5. The pivoting piece 71 is rotatably installed on the bottom of the cover plate 61, and a protrusion insertion hole 72 is drilled on one side thereof. The shaft projection 35 of the first opening and closing member 30 is inserted into the projection insertion hole 72.

The lever shaft 73 rotatably supports the rotating piece 71 on the cover member 60. The pivoting piece 71 may be supported at the lower end of the lever shaft 73. At this time, it is preferable that the planar direction of the rotating piece 71 and the axial direction of the lever shaft 73 are arranged to be perpendicular to each other. Therefore, when the lever shaft 73 rotates, the protruding insertion hole 72 penetrating the pivot piece 71 rotates around the lever shaft 73.

The operating lever 74 protrudes from the lever shaft 73 and is exposed outside the cover member 60. The operating lever 74 can be angularly moved between the locked position as shown in FIG. 6A and the open position as shown in FIG. 6B. Therefore, when the user makes an angular movement of the control lever 74, the lever shaft 73 rotates and the rotating piece 71 rotates around the lever shaft 73.

In addition, when the pivot piece 71 rotates, the axial protrusion 35 of the first opening and closing member 30 inserted into the protruding insertion hole 72 moves, and when the axial protrusion 35 moves, the first opening and closing member As the horizontal operating arm 33 of (30) moves, the interlocking member 50 rotates. The interlocking member 50 moves the horizontal operating arm 43 of the second opening and closing member 40 in the opposite direction to the horizontal operating arm 33 of the first opening and closing member 30.

When both horizontal operating arms (33, 43) of the first opening and closing member (30) and the second opening and closing member (40) move in opposite directions, both grip parts attached to the lower ends of both vertical operating arms (32, 42) ( 31 and 41) approach each other and are fastened to both flanges 11 and 21 as shown in FIG. 6A, or move away from each other and are separated from both flanges 11 and 21 as shown in FIG. 6B.

When the grip portions 31 and 41 are fastened to both flanges 11 and 21, the lid 20 is locked and can never be opened. However, when the grip portions 31 and 41 separate from both flanges 11 and 21, the lid 20 of the cooking container 10 is in an open state. Therefore, the user can easily open and close the lid 20 using the operating lever 74.

According to a preferred embodiment of the present invention, the lever shaft 73 of the lever unit 70 is accommodated in the handle support portion 63 of the cover member 60, and the handle support portion 63 includes an operating lever 74. It is preferable that a lever exposure hole (63a) is provided to expose the. For this purpose, a lever shaft receiving portion (63b) may be provided inside the handle support portion (63). The lever exposure hole (63a) and the lever shaft receiving portion (63b) are connected to each other.

In addition, a spring 64 and a ball stopper 65 are installed on the handle support portion 63 in a direction crossing the lever shaft 73 as shown in FIG. 5, and the ball stopper 65 is installed on the lever shaft 73. ) may be provided with a stopper groove (73a) corresponding to it. The ball stopper 65 and the stopper groove 73a limit the rotational position of the lever shaft 72.

That is, the rotation of the lever shaft 73 is temporarily restricted at the position where the ball stopper 65 reaches the stopper groove 73a. The stopper groove 73a may be installed at angles corresponding to the locking and opening positions of the operating lever 74, respectively.

It is preferable that the lever shaft 73 and the operating lever 74 have separate structures for ease of assembly. In this case, the lever shaft 73 is provided with a lever coupling hole (73b). Therefore, with the lever shaft 73 inserted into the lever shaft receiving portion 63b, the operating lever 74 can be inserted into the operating lever coupling hole 73b through the lever exposure hole 63a. The operating lever 74 is fixed to the lever shaft 73 by a fixing screw (R).

In this way, in the lid opening and closing device according to the present invention, the operation lever 74 is installed on the handle support portion 63, so the user holds the lid handle 62 with one hand and operates the operation lever 74 with the thumb of that hand. ) can be operated conveniently.

In each drawing, the unexplained symbol 23 of the lid 20 is a typical 'steam discharge cap', and the unexplained code 61b of the cover member 60 is a 'elevating valve exposure hole' that exposes the safety lifting valve 22. am.

(10) Cooking container (11) Container flange
(12) Container handle (20,20a,20b) lid
(21) Lid flange (22) Safety lifting valve
(23) Steam discharge cap (30,40) Opening and closing member
(31,41) Grip part (32,42) Vertical operating arm
(33,43) Horizontal operating arm (33a) Opening stopper
(34,44) Through hole (35) Axial protrusion
(50) Interlocking member (51) Central axis
(52) Seesaw plate (53,54) Seesaw protrusion
(60) Cover member (61) Cover plate
(61a) Guide groove (61b) Lifting valve exposed hole
(62) Lid handle (63) Handle support
(63a) Lever exposure hole (63b) Lever shaft receiving part
(64) spring (65) ball stopper
(70) Lever unit (71) Rotation section
(72) Protrusion receiving hole (73) Lever shaft
(73a) Stopper groove (73b) Lever joint hole
(74) Control lever

Claims (6)

A pressure cooker having a cooking container (10) provided with a container flange (11) at the top of the rim surrounding the cooking space, and a lid (20) provided with a lid flange (21) corresponding to the container flange (11). In the lid locking device,
' surrounding the container flange (11) and the lid flange (21) together. '-shaped grip portion 31, a vertical operation arm 32 extending upward from the grip portion 31 close to the side 20a of the lid 20, and an upper end of the vertical operation arm 32. A horizontal operating arm 33 that is bent and extended toward the center of the upper surface 20b of the lid 20, a through hole 34 drilled in an inner end of the horizontal operating arm 33, and the horizontal operating arm 33. ) and a first opening and closing member (30) including an upwardly protruding shaft protrusion (35) in the middle portion of );
It is disposed opposite to the first opening and closing member 30, and surrounds the container flange 11 and the lid flange 21 together. '-shaped grip portion 41, a vertical operation arm 42 extending upward from the grip portion 41 close to the side 20a of the lid 20, and an upper end of the vertical operation arm 42. A second opening and closing member ( 40) and;
an interlocking member 50 disposed at the center of the upper surface 20b of the lid 20 and moving the first opening and closing member 30 and the second opening and closing member 20 in opposite directions;
It is fixedly coupled to the upper surface 20b of the lid 20 to connect the horizontal operating arm 33 of the first opening and closing member 30, the horizontal operating arm 43 and the interlocking member 50 of the second opening and closing member 40. A cover member (60) consisting of a cover plate (61) that covers the cover plate (61) and a lid handle (62) installed on the upper surface of the cover plate (61);
A pivoting piece 71 rotatably installed on the bottom of the cover plate 61, and a protrusion perforated on one side of the pivoting piece 71 into which the shaft projection 35 of the first opening and closing member 30 is inserted. An insertion hole 72, a lever shaft 73 that rotatably supports the rotating piece 71 on the cover member 60, and a lever shaft 73 that protrudes from the lever shaft 73 and is exposed outside the cover member 60. It is configured to include a lever unit 70 having an operating lever 74,
A safety lifting valve 22 that rises when the pressure inside the cooking space rises is installed on the upper surface 20b of the lid 20, and the safety lifting valve 22 is installed on the horizontal operating arm 33 of the first opening and closing member 30. A lid locking device for a pressure cooker, characterized in that an opening stopper (33a) is installed to limit the movement of the horizontal operating arm (33) when the valve (22) rises.
delete The method of claim 1, wherein the interlocking member 50 includes a central axis 51 protruding from the center of the upper surface 20b of the lid 20, and a seesaw plate rotatably supported on the central axis 51 ( 52), and a first seesaw protrusion 53 that protrudes on one side of the seesaw plate 52 and is inserted into the through hole 34 of the first opening and closing member 30, and protrudes on the other side of the seesaw plate 52. A lid locking device for a pressure cooker, characterized in that it consists of a second seesaw protrusion 54 inserted into the through hole 44 of the second opening and closing member 40.
The method of claim 1, wherein the horizontal operating arm (33) of the first opening and closing member (30) and the horizontal operating arm (43) of the second opening and closing member (40) are located on the bottom of the cover plate (61) of the cover member (60). Lid locking device for a pressure cooker, characterized in that it is provided with a guide groove (61a) to guide movement.
The method of claim 1, wherein the lid handle (62) of the cover member (60) is supported on the upper surface of the cover plate (61) by the handle support portion (63), and the lever shaft (73) is supported by the handle support portion (63). A lid locking device for a pressure cooker, characterized in that the handle support portion 63 is provided with a lever exposure hole 63a that exposes the operation lever 74.
The method of claim 5, wherein a spring 64 and a ball stopper 65 are installed on the handle support portion 63 in a direction crossing the lever shaft 73, and the lever shaft 73 is positioned in a locked position or an open position. A lid locking device for a pressure cooker, characterized in that a stopper groove (73a) corresponding to the ball stopper (65) is provided at an angle corresponding to