KR200409245Y1 - Apparatus for locking lid of pressure cooker - Google Patents

Abstract

The present invention relates to a lid lock device of a pressure cooker, the lid and the lid lock device of the pressure cooker comprising a main body for accommodating the inner pot with a plurality of fastening projections on the opposite surface of the lid, so as to rotate on the lid Operation handle mounted; A handle shaft fitted to the manipulation handle, the support shaft having a communication hole coupled to a fastener on the opposite side thereof, and a plurality of locking protrusions on both sides of the support shaft, the handle shaft extending on both sides of the support shaft; And an opening / closing ring having one side coupled to the handle shaft, the opening and closing ring having sliding grooves fitted into the fastening protrusions by sliding under pressure of the handle shaft, wherein the inner plate is connected to a lid of the inner pot located at a lower portion thereof. In the spaced apart state, the inner plate has a boss that is rotatably fitted in the communication hole of the support shaft, and engaging grooves for limiting the rotation radius of the locking projections while allowing the end of the locking projections to be rotatable; And, the engaging portion of the handle shaft and the opening and closing ring is caught, characterized in that it has a restriction hole for limiting the turning radius of the handle shaft.

Pressure cooker, lid, lock.

Description

Apparatus for locking lid of pressure cooker}

1 is a cross-sectional view showing the structure of a general electric pressure cooker,

Figure 2 is a schematic diagram showing the principle of operation of the lid locking device of the electric pressure cooker according to the prior art,

Figure 3 is an exploded perspective view showing a lid lock of the electric pressure cooker according to the present invention,

Figure 4 is a cross-sectional view showing a lid lock of the electric pressure cooker according to the present invention,

5 is an operation state diagram showing the opening operation of the lid locking device of the electric pressure cooker according to the present invention,

Figure 6 is a state diagram showing the closing operation of the lid locking device of the electric pressure cooker according to the present invention.

Explanation of symbols on the main parts of the drawing

50; Operation handle 51; Snapping

60; Handle shaft 61; First jamming protrusion

62; Support shaft 63; Second jammer

64; Fitting groove 65; Communicator

70; Boss 74; Hang

80; Opening and closing ring 81; Fastening groove

82; Protrusion 90; main body

91; Fastening protrusion 103; Inner plate

104; First catching groove 106; 2nd locking groove

107; Limiting holes 110a, 110b; Fastener

120; Inner pot lid

The present invention relates to a lid lock device of the pressure cooker, and more specifically, it is possible to rotate stable in the pressure cooker using electricity as a heat source, even if pressure is applied to the inner pot lid is prevented, even if the deformation of the lid rotates It is easy and the assembly structure relates to a simple lid lock.

In general, the electric pressure cooker uses a heating source (not shown) using electricity, the inner pot (1) for the stability and safety of the product because the inside of the inner pot (1) during cooking and cooking at high temperature, high pressure The inner ring cover (2) in close contact with the locking ring (3) for sealing the inside of the inner pot (1) from the outside, the pressure control means (not shown) for maintaining the pressure inside and high temperature, high pressure steam after cooking And a discharge device (not shown) for discharging.

In the conventional electric pressure cooker, a lid lock as shown in FIGS. 1 and 2 has been used.

First, in the case of a conventional lid lock as shown in Figures 1 and 2, the locking portion (not shown) that can be engaged with the locking stone piece (not shown) installed on the upper outer peripheral surface of the inner pot (1) inserted into the cooker body (not shown) Locking ring (3) having a lock, a locking pin (31) fixed to an upper end of the locking ring (3) for rotating the locking ring (3), and a long hole for rotating the locking pin (31). It comprises a rotating lever (4) comprising, a rotating member (6) coupled by the rotary lever (4) and the fastening screw (7) to rotate the rotary lever (4).

Here, the rotating member 6 is rotatable around the support rod 21 protruding from the upper surface of the lid 2 of the inner pot, and protrudes out of the outer lid 8 to the upper portion of the rotating member 6 to allow the user to operate. The operation knob for easy operation is combined.

Reference numeral 5, which is not mentioned separately in the drawings, is a lid frame, and reference numeral 71 is a fastening screw.

Operation of the lid locking device having the configuration as described above is as follows.

First, when the operation knob is rotated, the rotation member 6 coupled to the lower end of the operation knob rotates around the support bar 21, and the rotation lever 4 coupled to the rotation member 6 by the fastening screw 21 is rotated. While rotating together the long hole serves as a guide of the locking pin 31 to rotate the locking pin 31.

At this time, while the engaging portion formed in the lower portion of the locking ring 3 is engaged under the locking protrusion piece of the inner pot 1, the inner pot lid 2 is in close contact with the inner pot 1 to complete the lock.

Although not shown separately in the drawing, when the rotation member 6 is rotated in a locked state, that is, clockwise, the locking ring 3 rotates to complete the locking operation. In this state, when the rotating member 6 is rotated in the opposite direction, the locking member 6 is released.

However, the conventional lid locking device is a certain pressure is applied to the inner pot lid (2) when the user opens and closes the lid, if the pressure is applied to the inner pot lid (2) the rotating member connected to the inner pot lid (2) ( Since 6) flows up and down, there is a concern that the lid lock is broken when the cooker is used for a long time, and there is a problem that the noise is severely generated. In addition, the conventional lid locking device has a disadvantage in that the flow is severe and has a structural weakness that can be rotated stably.

In addition, the conventional lid locking device has a biased structure of the force that the rotation lever 4 extends to one side, so that the lid is not easily rotated when deformation such as bending or twisting occurs due to high heat and high pressure. There was this.

In addition, the conventional lid locking device has a problem that the assembly structure is complicated to increase the production cost and production process.

The present invention is devised to solve the above problems, to enable a stable rotation, to prevent the flow even if pressure is applied to the lid of the inner pot, to facilitate the rotation even if the deformation of the lid, assembly structure The purpose is to provide a lid lock of the pressure cooker to make it simple.

According to an aspect of the present invention for achieving the above object, a lid and locking device of a pressure cooker comprising a body for receiving the inner pot with a plurality of fastening protrusions on the opposite surface of the lid, can be rotated to the lid An operation handle mounted to be secured; A handle shaft fitted to the manipulation handle, the support shaft having a communication hole coupled to a fastener on the opposite side thereof, and a plurality of locking protrusions on both sides of the support shaft, the handle shaft extending on both sides of the support shaft; And an opening / closing ring having one side coupled to the handle shaft, the opening and closing ring having sliding grooves fitted into the fastening protrusions by sliding under pressure of the handle shaft, wherein the inner plate is connected to a lid of the inner pot located at a lower portion thereof. In the spaced apart state, the inner plate has a boss that is rotatably fitted in the communication hole of the support shaft, and engaging grooves for limiting the rotation radius of the locking projections while allowing the end of the locking projections to be rotatable; It provides a lid lock device of the pressure cooker, characterized in that the engaging portion of the handle shaft and the opening and closing ring is caught to limit the rotation radius of the handle shaft.

In addition, a hook portion is formed at one side of the handle shaft, the opening and closing ring is fitted to the hook portion has a protruding piece that can move along the restriction hole, the boss is located in the center of the locking grooves of the communication hole It has a cylindrical or conical shape according to the shape, the upper portion of the boss is characterized in that spaced apart from the end of the fastener by a predetermined interval.

The locking grooves and the restriction hole are characterized in that each has an arc shape.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the lid lock of the pressure cooker according to the present invention.

3 is an exploded perspective view showing a lid locking device of the electric pressure cooker according to the present invention, Figure 4 is a cross-sectional view showing a lid locking device of the electric pressure cooker according to the present invention, Figure 5 is an electric pressure according to the present invention Operation state diagram showing the opening operation of the lid lock of the rice cooker, Figure 6 is an operation state diagram showing the closing operation of the lid lock of the electric pressure cooker according to the present invention.

First, the pressure cooker in the present invention includes a lid as an electric pressure cooker and a main body for accommodating the inner pot with a plurality of fastening protrusions on opposite surfaces of the lid.

Although the lid is not specifically shown in the drawings, the top plate to maintain the appearance, the inner plate is formed in three-dimensionally accommodated in the top plate to maintain a constant rigidity, and the inner pot provided on the lower surface of the inner plate is in direct contact with the inner pot Lids ('120' in figures 3 and 4) and the like.

The locking device of the pressure cooker according to the present invention is provided in the inner upper plate 103 of the lid, as shown in Figure 3 to 6, the operation handle 50, the handle shaft 60, and opening and closing ring 80 And so on.

First, the operation handle 50 is rotatably mounted to the lid. The operation handle 50 is formed to protrude from the lid to facilitate the user's grip.

Unexplained reference numeral '110a' is a fastener for integrally coupling the operation handle 50 made of a plurality of parts.

The handle shaft 60 is fitted with the operation handle 50, the support shaft 62 is formed with a communication hole 65, the fastener 110b is coupled to the opposite surface of the surface fitted with the operation handle 50 ) And a plurality of locking projections (61, 63).

And the handle shaft 60 is preferably extended to both sides with respect to the support shaft 62.

As shown, the handle shaft 60 has a fitting groove 64 to engage with the fitting protrusion 51 formed on the lower surface of the operation handle 50 and is operated by fasteners 110b such as screws, bolts, and pins. It is firmly fixed to the handle 50.

Here, the support shaft 62 is formed at the lower center portion of the handle shaft 60 and has first and second locking projections 61 and 63 on both sides of the support shaft 62, respectively.

The handle shaft 60 rotates with respect to the support shaft 62. In addition, the locking portion 74 is formed at one edge of the handle shaft 60.

The handle shaft 60 has a structure in which the first and second locking projections 61 and 63 rotate from the support shaft 62, which is easier to distribute the force than in the prior art. Rotation can be made smoothly, in particular, even in the deformation of the lid by high heat and high pressure can be easily made.

In addition, the inner upper plate 103 in the lid is in a state spaced apart from the inner pot lid 120 located below.

The inner plate 103, the boss 70 is fitted to be rotatable in the communication hole 65 of the support shaft 62, and the end of the engaging projection (61, 63) to be seated rotatably and at the same time The locking grooves 104 and 106 which limit the rotation radius of the locking projections 61 and 63 and the engaging portion of the handle shaft 60 and the opening / closing ring 80 described below are caught to rotate the handle shaft 60. It has a limiting hole 107 for limiting the radius. The locking grooves 104 and 106 and the restriction hole 107 preferably have an arc shape.

Here, the boss 70 is located in the center of the engaging grooves (104, 106) having a cylindrical or conical shape according to the shape of the communication hole 65, the upper portion of the boss 70 is constant with the end of the fastener (110b) It is preferred to be spaced apart.

Thus, the boss 70 is provided on the inner plate, in particular, because the shape of the boss 70 is made of a cylindrical or conical shape, since the rotation of the support shaft 62 can be made more smoothly, the handle shaft 60 flows It can rotate stably without.

In addition, since the boss 70 and the locking grooves 104 and 106 of the inner plate 103 are all formed in a blocked state, the handle shaft 60 and the inner pot lid 120 may be kept spaced apart from each other.

As such, since the handle shaft 60 and the inner pot lid 120 are kept spaced apart from each other, when the user opens and closes the lid, even if a constant pressure is applied to the inner pot lid 120, the inner pot lid 120 is applied. There is no fear that the handle shaft 60 may flow up and down by the pressure.

Accordingly, even when the cooker is used for a long time, the handle shaft 60 does not flow unnecessarily, so there is little risk of damage to the lid locking device and noise is hardly generated, and there is no flow of the handle shaft 60. It has the advantage that the lid lock can be rotated stably.

On the other hand, the opening and closing ring 80 is coupled to one side of the handle shaft 60, the locking groove 81 that is fitted to the fastening protrusions 91 of the main body 90 by sliding by the pressure of the handle shaft 60. )

As shown, the opening and closing ring 80 has a protrusion piece 82 that is fitted to the engaging portion 74 of the handle shaft 60. Although not shown separately in the drawings, the protruding piece 82 may have a groove therein so that fasteners such as screws, bolts, and pins are inserted and fixed to the locking portion 74.

And in the state in which the opening and closing ring 80 and the handle shaft 60 is connected to each other, the inner plate 103 is arcuate shape to constrain the operating range of the protruding piece 82 to limit the turning radius of the handle shaft 60 It is preferable that the restriction holes 107 be formed.

In the present invention, the operation of opening and closing the main body 90 by sliding the opening / closing ring 80 is as shown in FIGS. 5 and 6.

First, if the lid locking device of the present invention in the state of Figure 5, the fastening groove 81 of the opening and closing ring 80 is located on the same line as the fastening protrusion 91 of the main body 90 to bind the lid and the main body 90. Since the state is released, the lid can be opened from the main body 90 so that food ingredients can be put into the main body 90 or the cooked food can be directly taken out.

If the user in the state of Figure 5, holding the operation handle 50 for the cooking of food ingredients and rotates in one direction, at the same time the handle shaft 60 coupled to the lower surface of the operation handle 50 is the inner plate 103 The first and second locking projections 61 and 63 of the handle shaft 60 are slid to one side with respect to the boss 70 of the first and second locking grooves 104 and 106 of the inner plate 103. In the state of FIG. 6 by the protrusion piece 82 of the opening and closing ring 80 is restricted to the operation at the same time caught by the restriction hole 107.

If the lid lock of the pressure cooker according to the present invention is in the state of Figure 6, while the fastening groove 81 of the opening and closing ring 80 is fitted to the fastening protrusion 91 of the main body 90, the lid and the main body 90 is completely Since the binding state, the pressure in the main body 90 is not discharged to the outside while the food is being cooked.

In addition, even if a constant pressure is applied to the inner pot lid 120 in the state of FIG. 6, since the handle shaft 60 does not have to be moved up and down by the pressure applied to the inner pot lid 120, the handle shaft ( 60) does not flow unnecessarily, due to this, there is little risk of damage to the lid lock and there is little noise, and there is no flow of the handle shaft 60, so that the lid lock of the pressure cooker according to the present invention can be stably rotated. Can be.

The present invention is a lid lock of the pressure cooker, because the handle shaft and the lid of the inner pot is kept spaced apart from each other, when the user opens and closes the lid, even if a constant pressure is applied to the inner pot lid, the handle by the pressure applied to the inner pot lid There is no fear that the shaft will flow up and down, and thus, even if the cooker is used for a long time, the handle shaft does not flow unnecessarily, so there is little risk of damage to the lid lock and noise is rarely generated. The present invention has an excellent effect that can be rotated stably.

In addition, the lid lock device of the pressure cooker according to the present invention is rotated while the handle shaft is extended to both sides with respect to the support shaft and caught on the first and second locking projections, the force can be easily dispersed compared to the conventional rotation can be made smoothly. In particular, there is an excellent effect that the rotation is easy even in the deformation of the lid by high heat and high pressure.

In addition, the lid lock device of the pressure cooker according to the present invention has an excellent effect that the assembly structure is simpler than the conventional structure to reduce the production cost and shorten the production process.

Claims (3)

As a lid lock of the pressure cooker comprising a lid and a main body for receiving the inner pot having a plurality of fastening projections on the opposite surface of the lid, An operation handle rotatably mounted to the lid; A handle shaft fitted to the manipulation handle, the support shaft having a communication hole coupled to a fastener on the opposite side thereof, and a plurality of locking protrusions on both sides of the support shaft, the handle shaft extending on both sides of the support shaft; And It is coupled to the handle shaft and one side, and sliding the pressure of the handle shaft includes an opening and closing ring having fastening grooves fitted to the fastening projections, In the lid, the inner plate is spaced apart from the lid of the inner pot located in the lower portion, the inner plate has a boss fitted to be rotatable in the communication hole of the support shaft, so that the end of the engaging projections are seated to be rotatable. And at the same time the cap of the pressure cooker having a locking groove for limiting the rotation radius of the locking projections, and a limiting hole for limiting the rotation radius of the handle shaft by engaging the engaging portion of the handle shaft and the opening and closing ring lock. The method of claim 1, A locking portion is formed at one side of the handle shaft, and the opening and closing ring is fitted to the locking portion to have a protruding piece that can move along the restriction hole, and the boss is positioned at the center of the locking grooves to form the communication hole. According to the cylindrical or conical shape, the upper portion of the boss cap lock device, characterized in that spaced apart from the end of the fastener by a predetermined interval. The method of claim 2, The locking grooves and the capping device of the pressure cooker, characterized in that each has an arc shape.

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