KR101618067B1 - apparatus for exhausting steam of electric cooker - Google Patents

Abstract

According to the present invention, provided is a steam discharge device of an electric cooker, which discharges steam at a certain level of pressure or higher during a cooking process of food accommodated in the electric cooker and improves the convenience of product installation. The steam discharge device of the electric cooker comprises: a housing arranged on a steam outlet which is formed on a cover to immediately discharge steam when abnormal high pressure occurs in an inner pot, and having a hollow guide part formed on the inner part to face the steam outlet; a pressure pin arranged to be elevated in the guide part, and having a temporary fixing groove formed on the outer circumference and a locking part formed on the lower part of the temporary fixing groove; an elastic spring arranged in the guide part to elastically support the pressure pin; a fixed plate coupled to the lower part of the housing, and having a communicating part which communicates with the hollow of the guide part; an elastic stopper which is arranged on the upper part of the fixed plate, is elastically inserted into the temporary fixing groove to restrict the downward movement of the pressure pin, and is elastically transformed during the upward movement of the pressure pin to be locked to the locking part in order to maintain the open state of the steam outlet; and a pressure packing arranged on the lower part of the pressure pin.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steam discharging apparatus for an electric cooking apparatus, and more particularly, to a steam discharging apparatus for an electric cooking apparatus which discharges steam at a pressure equal to or higher than a predetermined level during cooking of food contained in the electric cooking apparatus, .

BACKGROUND ART Generally, an electric cooker is an appliance for cooking food, and comprises a main body having an inner pot in which food is contained, and a lid covering an upper portion of the main body.

Here, the electric cooker can heat an inner pot containing food by a hot plate or an induction heating method to cook food therein, and examples thereof are an electric rice cooker, an electric pressure cooker, and the like.

The electric pressure cooker lid is provided with a pressure adjusting device for adjusting a pressure inside the inner pot, and the pressure adjusting device includes a solenoid valve and a steam discharging device.

In this case, the solenoid valve is provided in the steam discharge passage formed in the lid. When the pressure of the inner pot is increased over the threshold value during cooking, the steam discharge passage is opened. When the pressure of the inner pot is decreased below the threshold value, Can be closed.

At this time, when a mechanical structural defect or an electrical operation error occurs in the solenoid valve, the pressure inside the inner pot is excessively increased, and there is a danger of explosion of the electric pressure cooker. Therefore, the inner pressure of the inner pot moves upward, A non-return type steam discharging device is used.

Here, the non-return type steam discharging device includes a housing surrounding an outer periphery of the steam outlet, a pressure pin accommodated in the housing and lifted and elevated by pressure of the inner pot, and a pressure pin disposed between the housing and the pressure pin, And a resilient stopper provided on the upper portion of the housing.

In detail, when the pressure pin is raised by the pressure of the inner pot, the end of the elastic stopper is inserted into the engagement protrusion which expands outside due to the elastic restoring force and is exposed to the upper portion of the housing, The pressure pin can be restrained at the end of the elastic stopper to maintain the raised state.

However, in the conventional steam discharging device, the components constituted by the pressure pin, the spring member, the housing, and the elastic stopper are sequentially installed in the steam discharging port one by one to assemble and install the product, and to maintain and maintain the steam discharging device There is a problem that a lot of time is consumed for repairing and parts are lost.

Furthermore, since the lower end position of the pressure pin is accurately positioned at the steam outlet, it is necessary to assemble each part, so that the assembly difficulty is increased and the lower position of the pressure pin is deviated from the steam outlet at the time of reassembly and installation.

In addition, since the resilient restoring force of the elastic stopper does not act accurately in the direction of the engagement pin of the pressure pin, the restraint of the pressure pin can not be stably maintained and the pressure pin is lowered during the discharge of steam. When the elastic force of the elastic stopper is increased, the pressure pin is distorted by the pressing force of the elastic stopper to be fixed to the inside of the housing, and there is a serious safety problem in that the elevating operation for discharging the steam is not smoothly performed.

Further, since the elastic stopper is installed outside the housing, the structure is complicated and the durability of the device is deteriorated because many parts of the outer lid are damaged during mounting or driving after the product is installed. there was.

Korea Patent No. 10-0542335

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a steam discharging device for an electric cooker, which discharges steam at a pressure equal to or higher than a predetermined level during cooking of food stored in the electric cooker, .

According to an aspect of the present invention, there is provided a steam turbine comprising: a housing having a hollow guide portion disposed in a steam discharge port provided in a lid for emergency discharge of steam when an abnormal high pressure is generated in the inner pot, A pressure pin which is arranged to be raised and lowered inside the guide portion, the pressure pin being formed on the outer periphery of the groove and formed in the lower portion of the tortuous groove; An elastic spring disposed inside the guide portion to elastically support the pressure pin; A fixing plate coupled to a lower portion of the housing and having a communicating portion communicating with the hollow portion of the guide portion; And an elastic member which is provided on the fixing plate and elastically inserted in the fixing groove to restrain the downward movement of the pressure pin and is elastically deformed when the pressure pin is lifted so as to retain the opening of the steam outlet, stopper; And a pressure packing disposed under the pressure pin.

Here, a plurality of coupling grooves are formed on the lower surface of the housing, and coupling protrusions, which are fitted and fixed to the coupling grooves, are formed on the upper surface of the fixing plate.

The elastic stopper may include a core portion that is wound to form an elastic restoring force and is held by one of the engaging projections, an elastic portion that extends to one side of the core portion to press the outer periphery of the pressure pin, And a support portion extending to the other side of the core portion so as to be supported by the other one. The stopper plate preferably has a stopper restricting portion for restraining an upper portion of the elastic portion.

The elastic stopper is disposed on both sides of the pressure pin so as to be rounded along both side portions facing the elastic stopper at an upper end of the pressure pin. The elastic stopper is inclined radially inward toward the upper side It is preferable that an insertion guide groove is formed.

Preferably, the elastic stopper is disposed opposite to both sides of the pressure pin, and the fixing plate is divided to cover a lower portion of the elastic stopper.

Preferably, the upper portion of the tongue groove is formed as a restricting surface which is hooked on the upper portion of the elastic stopper, and the lower portion of the tongue groove is formed as an inclined surface on which the elastic stopper slides.

Preferably, the guide portion is provided with a permanent magnet which is pressed by the elastic spring and is brought into close contact with the lower surface of the housing.

Through the above solution, the steam discharging device of the electric cooker of the present invention provides the following effects.

First, when the pressure pin is pushed into the guide portion, the elastic stopper is caught in the fixed groove and the pressure pin is inserted into the housing It can be temporarily fixed easily, and since the integrated product is installed by temporary fixing without installing each component separately, it is possible to prevent the loss of parts and simplify the installation process of the product.

Secondly, the inclined surface of the temporary fixing groove presses the elastic stopper slantingly when the pressure pin rises and pushes the elastic stopper to the outside, so that the compression stop of the elastic stopper is easily performed so that the pressure pin is smoothly raised and lowered, The lifting operation of the pin can be performed accurately and quickly at a set pressure, and the safety of the product can be improved.

Third, a guide protrusion protruding from the outer periphery of the pressure pin is inserted into the slide groove portion formed in the inner periphery of the guide portion to guide up and down linear movement. Therefore, assembly between the components can be easily performed. Malfunctions are prevented, the lifting operation for discharging the steam can be accurately performed, and the driving reliability of the product can be improved.

Fourthly, since the pressure pin can be easily deformed in the outward direction, the elastic part disposed on both sides of the hollow bottom of the guide part can be easily deformed in the outward direction through the insertion guide groove sloping downward at both sides of the upper end, The resistance by the stopper is minimized, and the pressure pin can be smoothly inserted without being hung, so that the assemblability of the product can be improved.

Fifth, the engaging protrusion projecting along the upper surface of the fixing plate to be engaged with the engaging groove portion of the housing simultaneously serves to fix and support the elastic stopper, thereby improving the assemblability between the components and simplifying the structure of the housing, It is possible to provide a compact product in which installation space is minimized while reducing costs.

Sixth, since the lead sensor has a permanent magnet inside the guide portion and detects the magnetic force of the permanent magnet on one side of the lid, when the inner lid is detachably attached to the bottom portion of the lid, The detection of the magnetic force through the sensor can detect whether the inner lid is attached or detached, thus improving the safety of the product.

1 is a perspective view illustrating a steam discharging apparatus of an electric cooker according to an embodiment of the present invention;
2 is an exploded view of a steam discharging device of an electric cooker according to an embodiment of the present invention.
3 is a rear view showing the arrangement of a housing and a permanent magnet in a steam discharging device of an electric cooking machine according to an embodiment of the present invention.
FIG. 4 is a rear projection view of a stationary plate in a steam discharging device of an electric cooker according to an embodiment of the present invention, which is indicated by a dotted line. FIG.
FIG. 5A and FIG. 5B are cross-sectional views taken along the line AB of FIG. 4 showing a state in which the steam discharging device of the electric cooking apparatus is driven according to an embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a steam discharging apparatus for an electric cooker according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating a steam discharging apparatus of an electric cooking apparatus according to an embodiment of the present invention, FIG. 2 is an exploded view showing a steam discharging apparatus of an electric cooking apparatus according to an embodiment of the present invention, FIG. 4 is a rear view of a steam discharging apparatus for an electric cooker according to an embodiment of the present invention. FIG. 5A and FIG. 5B are views showing a state in which the present invention FIG. 4 is a cross-sectional view taken along the line AB of FIG. 4, illustrating the operation of the steam discharging device of the electric cooking apparatus according to one embodiment of the present invention.

1 to 5B, a steam discharging apparatus 100 of an electric cooking apparatus according to an embodiment of the present invention includes a housing 10, a pressure pin 40, an elastic spring 30, an elastic stopper 20, A stationary plate 60, and a pressure packing 50.

Here, the electric cooker (not shown) may include a main body (not shown) having an inner pot (not shown) and a lid (not shown) covering an upper portion of the main body (not shown).

At this time, the lid is coupled to open and close the upper end of a main body having a heating means such as a hot plate heater or an induction heating device, and an inner pot (t) for sealing the inner pot is provided at a lower portion of the lid.

Here, the inner pot lid may be detachably coupled to the lid for ease of cleaning, or may be coupled with the lid so as not to be separated from the lid by screwing or the like.

The lid is provided with a steam control unit (not shown) having a pressure regulating device (not shown) for maintaining the inner pressure of the inner pot at an abnormal high pressure or less, a steam discharging device 100 for emergency discharge of the inner- A steam outlet h provided with a steam outlet h may be provided.

In addition, a predetermined steam discharge passage is formed in the lid, and the inner steam in the inner pot can be discharged to the outside through the steam discharge passage when the steam control valve and the steam discharge opening are opened.

Here, the steam exhaust device 100 is configured such that when the abnormal high pressure is generated, the inner pressure pin 40 is elevated to open the steam outlet h, and the elastic stopper 20 moves the pressure pin 40 up So that the steam in the inner pot can be smoothly discharged while maintaining the opened state of the steam outlet h.

1 to 3, the housing 10 is disposed in the steam outlet h, and a hollow guide 17 is formed in the center of the housing 10 so as to face the steam outlet h, Bolt holes 11 through which the bolts are passed are formed on both sides of the guide portion 17.

The steam outlet h may be formed at one side of the inner pot lid h and is provided at the outer periphery of the steam outlet h so as to protrude above the inner lid t and a bolt tightening hole So that the formed coupling boss is formed.

Here, the bolt hole 11 is formed in a portion of the housing 10 facing the bolt fastening hole, so that the bolt is inserted into the bolt hole 11 in a state where the bolt hole 11 and the bolt fastening hole are arranged to communicate with each other. (10) and the inner lid (t) can be engaged by inserting the inner lid (11) into the bolt fastening hole and fastening it to the bolt fastening hole.

In detail, the housing 10 may have a cylindrical shape so as to minimize the mounting volume, and the inner hollow of the guide portion 17 has a shape in which an upper portion is closed and a lower portion is opened.

At this time, an elastic spring 30 and a pressure pin 40 are sequentially disposed inside the guide portion 17, and a pressure packing 50 is attached to a lower portion of the pressure pin 40.

The pressure pin 40 is pressed downward by the elastic force of the elastic spring 30 to seal the steam outlet h through the pressure packing 50. When the abnormal high pressure in the inner pot is generated, So that the steam outlet h is opened.

The outer wall 10a of the housing 10 is formed so as to extend further downward than the lower end of the guide portion 17 so that the lower end of the guide portion 17 is spaced upward from the steam outlet h, A mounting space covered by the outer wall 10a of the housing may be formed at the outer periphery of the lower end of the guide portion 17. [

The fixing plate 60 is mounted on the mounting space and the pressure pin 40 and the housing 10 are fixed to the upper surface of the fixing plate 60, An elastic stopper 20 for holding the raised state can be mounted.

At this time, the elastic stopper 20 may be provided with a torsion spring having one end fixed to the fixing plate 60 and the other end providing an elastic force radially inward.

Since the mounting space for mounting the fixing plate 60 and the elastic stopper 20 is formed in the housing 10, the structure of the device can be simplified.

Since the elastic stopper 20 is covered by the fixing plate 60 and is provided inside the housing 10, separation and breakage of the elastic stopper 20 due to friction with the inner lid during installation can be prevented .

The pressure pin 40 is formed to have an outer shape corresponding to the guide portion 17 and is inserted into the guide portion 17 to be elevated and lowered to form a groove 41 on the outer periphery thereof.

The tongue groove 41 is formed in a height range in which the pressure packing 50 provided at the lower portion of the pressure pin 40 can be kept in a state of being in tight contact with the steam discharge port h by the elastic spring 30 .

The resilient stopper 20 is elastically inserted into the tongue groove 41 to restrain the downward movement of the pressure pin 40 and the elastic spring 30 and / The pressure pin 40 can be maintained in the engaged state without being detached.

As the pressure pin 40 is pushed into the guide portion 17, the temporary fixing groove 41 is caught by the elastic stopper 20 so that the elastic spring 30 and the pressure pin 40 come into contact with the housing 10 Therefore, unlike the conventional method in which the respective components are separately installed in the steam outlet h, there is no fear of losing components and the installation process can be simplified, and the productivity of the product can be improved.

If the bolt holes 11 of the housing 10 and the bolt fastening holes of the inner container lid are aligned so as to be aligned with each other so that the pressure pins 40 are accurately positioned at the steam outlet h It can be easily installed even for unskilled people, saving time for replacing or repairing the device.

Meanwhile, the elastic stopper 20 is elastically inserted in the lower portion of the tongue groove 41 when the pressure pin 40 is raised due to an abnormal high pressure in the inner pot, so that the pressure pin 40 is raised A restricting portion 45 is formed.

The restricting portion 45 may be formed as a step at a lower portion of the pressure pin 40 and may be formed as a depression recessed at the lower periphery of the pressure pin 40.

At this time, the restricting portion 45 is formed in a height range in which the pressure packing 50 can be kept spaced apart from the steam outlet h.

A spring groove 44 into which the lower portion of the elastic spring 30 is inserted is formed inside the pressure pin 40. The elastic spring 30 is inserted into the spring groove 44, A spring protrusion 47 is provided to constrain the lower portion of the spring.

The elastic spring 30 is disposed inside the guide portion 17 and supports the pressure pin 40 downward by elastically supporting the pressure pin 40 and the guide portion 17 .

At this time, it is preferable that the elastic spring 30 is applied as a compression coil spring which gives a vertical elastic force.

The elastic force of the elastic spring 30 may set the opening pressure of the steam outlet h and the elastic coefficient of the elastic spring 30 may be set such that the inner pressure of the inner pot reaches the abnormal high pressure, It is preferable that the pin 40 is set to ascend and descend.

Preferably, the outer circumference of the elastic spring 30 corresponds to the inner diameter of the spring groove 44, and the outer circumference of the elastic spring 30 corresponds to the inner diameter of the guide portion 17 Do.

The lower portion of the resilient spring 30 is restrained by the spring protrusion 47 and the resilient spring 30 is elastically supported between the pressure pin 40 and the housing 10 in a state where the upper portion of the resilient spring 30 is restrained by the inner circumference of the guide portion 17. [ The elastic deformation due to the elasticity of the elastic spring 30 can be accurately guided in the up and down direction.

The fixing plate 60 is connected to the lower portion of the housing 10 and has a communication portion 61 communicating with the hollow portion of the guide portion 17.

As shown in the figure, the fixing plate 60 may be divided into a lower portion of the housing 10 and a lower portion of the guide portion 17 so as to be coupled to one side and the other side of the mounting space, As shown in Fig.

In this case, when the fixing plate 60 is provided as one member, the communication part may be formed as a communication hole formed at the center of the fixing plate 60, and the communication hole may be formed in the sliding groove part 17a of the housing And it is preferable that it is formed in an exposable size.

Bolt through-holes communicating with the bolt holes 11 may be formed on both sides of the communication holes at portions corresponding to the bolt holes 11 of the housing.

Each of the fixing plates 60 covers a space between the outer wall 10a of the housing and the outside of the guide portion 17 and includes a bolt hole 11 And a pair of semicircular members divided by a reference.

At this time, a communication groove may be formed on the side where the fixing plates 60 are opposed to each other, and the communication portion 61 is preferably opened by the communication groove.

That is, when each fixing plate 60 is coupled to the lower portion of the housing 10, a communication portion 61 communicating with the hollow of the guide portion 17 is formed between the communication grooves of the fixing plate 60 .

At this time, it is preferable that the communicating part 61 is formed to be large enough to allow the pressure pin 40 to pass therethrough and be equal to or larger than the hollow inner diameter of the guide part 17.

At this time, an elastic stopper 20 is provided between the fixing plate 60 and the housing 10. One end of the elastic stopper 20 is disposed below the lower end of the guide portion 17 so as to press the outer circumference of the pressure pin 40 exposed to the lower side of the guide portion 17.

On the other hand, the pressure packing 50 is provided under the pressure pin 40. Here, the pressure packing 50 is preferably made of a stretchable material, and is preferably made of a stable material at high temperature so as not to be damaged by internal steam.

The pressure packing 50 may be coupled to a packing protrusion 43 protruding from the center of the lower surface of the pressure pin 40. The packing protrusion 43 may be inserted into the center of the upper surface of the pressure packing 50, A fixed projection fixing groove 52 may be formed.

At this time, toothed protrusions (not shown) may be formed at the lower end of the packing protrusion 43 to protrude radially outward to prevent the pressure packing 50 from being separated.

Here, the pressure packing 50 is provided so as to be larger than the diameter of the steam outlet h and have a smaller cross-sectional area than the lower surface of the pressure pin 40. In addition, it is preferable that a close protrusion 51 having a sectional area narrower than the diameter of the steam outlet h is formed in the lower portion of the pressure packing 50 so as to form a step.

Accordingly, when the pressure packing 50 and the vapor outlet h are in close contact with each other, the contact protrusion 51 is inserted into the steam outlet h, and the lower end of the pressure packing 50 is connected to the steam outlet the steam outlet h can be accurately sealed as it is in close contact with the upper surface of the steam h.

2 to 5A and 5B, an upper portion of the tortuous groove 41 is defined by a restricting surface 41a which is engaged with the upper portion of the elastic stopper 20, And the lower portion is formed as an inclined surface 41b on which the elastic stopper 20 is slidably moved.

At this time, the other end of the elastic stopper 20, which is elastically inserted into the tongue groove 41, may be hooked on the restricting surface 41a formed on the tongue groove 41 to support the pressure pin 40.

Here, the restricting surface 41a may be formed flat in a direction perpendicular to the outer periphery of the pressure pin 40 so as to form a step, and may have a concave shape or a concave shape upward to improve the restraining force against the elastic stopper 20 It may be provided in the form of a hook.

In addition, the inclined surface 41b is preferably formed to be inclined radially outward as it goes downward.

Accordingly, when the pressure due to the steam is applied to the lower portion of the pressure pin 40, the elastic stopper 20 slides along the inclined surface 41b of the temporary fixing groove 41 and can be easily compressively deformed.

At this time, the compression-deformed elastic stopper 20 is restored and expanded in the extended space of the restricting portion 45 and is caught by the restricting portion 45 to support the lower side of the restricting portion 45, Can be maintained.

The tongue groove 41 is accurately restrained to the elastic stopper 20 through the restricting surface 41a formed on the upper surface of the tongue groove 41 to firmly maintain the tongue of the housing 10 and the pressure pin 40 And when the pressure pin 40 is lifted, the elastic stopper 20 is inclinedly pressed through the inclined surface 41b formed at the lower portion to push the elastic stopper 20 outward so that the elastic stopper 20 can be easily compressed and deformed. have.

Accordingly, since the pressure pin 40 can be smoothly raised at a pressure set to an abnormally high pressure, the upward movement of the pressure pin 40 can be accurately driven at the time of abnormal high pressure generation, thereby improving the safety of the product.

Since the pressure pin 40 can be smoothly raised through the inclined surface 41b under the tentative groove 41, the tentative groove 41 can be formed at a depth depressed radially inward from the outer circumference of the pressure pin 40 May be formed to a depth that accommodates the restoring expansion of the elastic stopper (20).

In detail, the elastic stopper 20 can be engaged with the temporary fixing groove 41 in a state of no compression deformation.

The state in which the elastic stopper 20 is compressively deformed at the position of the pressure pin 40 sealing the steam outlet h is a normal state in which the inner pressure of the inner pot is not abnormal high pressure state, But it is inserted into the trench 41 and is maintained in a restored state, so that the deterioration of the elastic force due to the continuous compression deformation can be prevented.

This prevents a malfunction that prevents the elastic stopper 20 from being properly fastened to the restricting portion 45 due to the reduction of the elastic force of the elastic stopper 20 when the pressure pin 40 rises, The durability and the reliability of the product can be improved.

The upper end of the pressure pin 40 is formed with an insertion guide groove 46 which is roundly recessed along both side portions facing the elastic stopper 20. The outer edge surface 46a of the insertion guide groove 46 Is formed to be inclined radially inward toward the upper side.

Specifically, the pressure pin 40 passes through the communication portion 61 after the housing 10 and the fixing plate 60 are coupled, and is provided on the upper surface of the fixing plate 60, Can pass through between the elastic portions 21 of the elastic stoppers 20 disposed on both sides and can be inserted into the guide portion 17.

At this time, as the outer edge surface 46a of the insertion guide groove 46 contacts the elastic portion 21 in an oblique direction, the elastic portion 21 can be easily deformed outwardly.

Accordingly, when the pressure pin 40 is inserted, the resistance by the elastic stopper 20 can be minimized, and the insert can be smoothly inserted without engaging, thereby improving the assemblability of the product.

3 to 4, a slide groove portion 17a is formed in the inner periphery of the guide portion 17 so as to guide a guide protrusion 42 protruding in the vertical direction on the outer periphery of the pressure pin 40, Is formed.

The guide protrusions 42 are preferably paired so as to be opposed to both sides of the pressure pin 40. The slide groove portion 17a is formed to correspond to each of the guide protrusions 42, desirable.

Specifically, the slide groove portion 17a is formed radially outward from the inner periphery of the guide portion 17, and the pressure pin 40 is disposed such that the guide projection 42 is opposed to the slide groove portion 17a And can be inserted into the inside of the guide portion 17 in the state of FIG.

The slide groove 17a can guide the upward and downward movement of the guide protrusion 42. The pressure pin 40 can be moved in a linear direction in the hollow of the guide portion 17 without being tilted to one side It can be moved up and down exactly.

Accordingly, malfunctions such as the twisting of the pressure pin 40 and the engagement of the pressure pin 40 in the guide portion 17 are prevented, and the lifting and lowering operation for discharging the steam is accurately performed, thereby improving the driving reliability of the product.

2 to 3, a plurality of coupling grooves 14, 15 and 16 are formed on the lower surface of the housing 10, and the coupling grooves 14, And the engaging projections (62, 63, 65) which are fitted and fixed to the engaging projections (15, 16).

The number of the coupling protrusions 62, 63, 65 may be set according to the number of the coupling grooves 14, 15, 16, and the coupling grooves 14, 15, 16 may have different inner diameters Respectively.

The outer diameter of each of the engaging projections 62, 63 and 65 is set to be greater than the outer diameter of the engaging recesses 62, 63, 65 formed at positions corresponding to the positions of the engaging projections 62, 63, 65 when the stationary plate 60 and the housing 10 are engaged. 14, 15, 16).

It is preferable that each of the engaging protrusions 62, 63 and 65 has an outer diameter equal to or slightly larger than an inner diameter of the engaging recesses 14, 15 and 16 formed at corresponding positions, 14, 15, 16).

Of course, it is also possible that the fixing plate and the housing are coupled or formed with each other by interchanging with each other, and the fixing plate and the housing are coupled with each other by a method in which the fixing projection is engaged with the elastic hook ≪ / RTI >

The elastic stopper 20 for retaining the pressure pin 40 in the temporary fixed state and the raised state is disposed on the upper portion of the fixed plate 60. The elastic protrusions 62, The assembling between the stationary plate 60, the elastic stopper 20 and the housing 10 is completed only by pressing the stationary plate 60 to the lower portion of the housing 10 in a state where the positions of the stationary plate 60, The assemblability of the product itself can be remarkably improved.

It is also possible to attach the resilient stopper 20 and the housing 10 to the housing 10 by adding a simple type fixing plate 60 connecting the elastic stopper 20 and the housing 10, ) Can be simplified, so that it is not required to perform a slide process for forming a complicated bottom structure, thereby reducing the mold and process cost and improving the production economics of the product.

The elastic stopper 20 preferably includes a core portion 22, an elastic portion 21, and a support portion 23.

Here, the core portion 22 may be wound to form an elastic restoring force and be mounted on any one of the engaging projections 62, 63, and 65. At this time, it is preferable that two or more coupling protrusions (62, 63, 65) are formed in the fixing plate (60).

Two coupling protrusions 62 and 63 of the coupling protrusions 62 and 63 are used to couple the fixing plate 60 and the housing 10 and provide the supporting structure of the elastic stopper 20 .

The other one of the engaging protrusions 65 formed on the edge of the fixing plate 60 may be omitted but is preferably provided for firm connection between the fixing plate 60 and the housing 10, 20 can be used as an auxiliary supporting structure before inserting the elastic portion 21 into the stopper restricting portion 64. [

That is, the core portion 22 and the supporting portion 23 are mounted on the other engaging projections 62 and 63 while the elastic portion 21 is supported on the engaging projection 65, The elastic stopper 20 can be easily installed by inserting the portion 21 into the stopper restricting portion 64. [

In detail, the core portion 22 is preferably mounted on a coupling protrusion 62 protruding from a portion adjacent to the bolt hole 11 of the coupling protrusions 62, 63, 65.

The elastic portion 21 may be extended to one side of the core portion 22 so as to press the outer periphery of the pressure pin 40.

The support portion 23 may extend to the other side of the core portion 22 so as to be supported by the other one of the coupling protrusions 62, 63 and 65.

The other coupling protrusion 63 refers to the coupling protrusions 62, 63 and 65 of the fixing plate 60 except for the coupling protrusions 62 on which the core part 22 is fixed. 63, 65). ≪ / RTI >

At this time, the end of the support portion 23 may be bent in a circular shape to form a loop, and may be supported on the coupling protrusion 62 through a loop.

As described above, the elastic stopper 20 can be coupled to the upper portion of the fixing plate using the coupling protrusions 62, 63, and 65 protruding for fitting the housing and the fixing plate.

Accordingly, a separate structure for fixing the elastic stopper 20 to the fixing plate 60 is not required, so that the moldability of the product can be improved by simplifying the structure of the fixing plate 60.

In addition, since the resilient stopper 20 disposed between the housing and the fixed plate can be firmly fixed without being flowed through the engaging projections 62, 63, 65, Even when an external force is applied to the pressure pin 40 due to the vapor pressure or the restoring force of the elastic spring 30 in the state of being hooked on the pressure member 45, The driving reliability of the driving device can be improved.

In addition, the stopper plate 60 may be provided with a stopper restricting portion 64 for restricting the upper portion of the elastic portion 21.

The stopper restricting portion 64 is bent toward the upper side of the fixing plate 60 and bent to one side so that the elastic portion 21 is inserted between the stopper restricting portion 64 and the fixing plate 60 And the elastic portion 21 may be elastically deformed in the lateral direction in a state in which the upper portion is supported by the lower surface of the stopper restricting portion 64. [

Since the elastic part 21 does not flow upward when the pressure pin 40 is inserted or raised and can be caught in the fixed groove 41 or the restricting part 45 at a predetermined position, The assembly can be prevented, and the ascending and ascending state maintenance can be accurately driven.

2 to 4, the elastic stopper 20 is arranged to be opposed to both sides of the pressure pin 40, and the fixing plate 60 is fixed to the lower portion of the elastic stopper 20 It is preferable to divide it into two.

At this time, the elastic stoppers 20 are preferably provided to have a uniform elastic force. Each of the elastic stoppers 20 disposed opposite to each other can press the pressure pin 40 from both sides with a uniform force to minimize the friction between the pressure pin 40 and the inner surface of the guide portion 17 , The pressure pin (40) can be raised and lowered more smoothly without being twisted.

3 to 5A, when the inner lid is detachably attached to the bottom of the lid so as to facilitate cleaning for cleaning the bottom surface of the lid, The permanent magnet 70 may be provided in the guide portion 17 to be pressed against the lower surface of the housing 10 by the elastic spring 30. [

In addition, a lead sensor for sensing the magnetic force of the permanent magnet may be provided on one side of the lid, and the lead sensor may transmit a signal depending on whether the magnetic force is sensed or not to detect whether the inner lid is attached or detached.

Here, the elastic spring 30 elastically supports the upper surface of the guide portion 17 via the permanent magnet 70.

At this time, the inner circumference of the guide portion 17 may be provided with a magnet supporting portion 17b protruding radially inwardly so as to restrict the rotation of the permanent magnet 70.

Here, the plurality of magnet supporting portions 17b are provided to support the respective corners of the permanent magnets 70, and the respective magnet supporting portions 17b are spaced apart from each other at a uniform interval, It is preferable that the cross-sectional area of the permanent magnet and the cross-sectional area of the hollow inside the guide portion 17 are taken into consideration.

The lower end of the magnet support portion 17b has a lower height and a lower end thereof is rounded so that each corner of the permanent magnet 70 is inserted between adjacent magnet support portions 17b when the permanent magnet 70 is inserted. Space.

5A and 5B, the driving of the steam discharging device 100 will be described.

5A, the pressure pin 40 is inserted into the guide portion 17 together with the elastic spring 30, and the resilient stopper 20 is engaged with the temporary fixing groove 41, Can be combined.

When the housing 10 to which the components are coupled is coupled to the inner lid t, the interior of the inner pot can be sealed as the pressure packing 50 is brought into close contact with the steam outlet h.

5B, the pressure in the upward direction is applied to the pressure packing 50, which seals the steam outlet h, by the vapor pressure of the inner pot. When the pressure exceeds the elastic force of the elastic spring 30 The pressure pin 40 is raised.

At this time, the elastic portion 21 of the elastic stopper 20 slides along the inclined surface 41b of the temporary fixing groove 41 and compressively deforms to be restored and expanded at the step of the restricting portion 45, As shown in Fig.

Accordingly, the pressure pin 40 is maintained in the raised state, and the pressure pin 40 is not lowered and the opened state of the steam outlet h is maintained even if the inner pressure of the inner pot is lowered.

At this time, the steam of the inner pot passes through the steam outlet h, passes through the steam discharge groove 13 formed at the lower end of the outer wall 10a of the housing 10, and is discharged to the outside of the housing 10.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: Vapor discharge device 10: Housing
11: Bolt hole 13: Vapor discharge groove
14, 15, 16: engaging groove portion 17: guide portion
17a: slide groove portion 20: elastic stopper
21: Elastic part 22: Core part
23: Support part 30: Elastic spring
40: pressure pin 41:
42: Guide projection 43: Packing projection
45: restraining part 50: pressure packing
51: contact projection 52: projection fixing groove
60: fixing plate 61:
62, 63, 65: engaging projection 70: permanent magnet

Claims (7)

A housing having a hollow guide portion disposed in a steam outlet provided in the lid to emit steam when an abnormally high pressure is generated in the inner pot, the hollow guide portion being opposed to the steam outlet;
A pressure pin which is arranged to be raised and lowered inside the guide portion, the pressure pin being formed on the outer periphery of the groove and formed in the lower portion of the tortuous groove;
An elastic spring disposed inside the guide portion to elastically support the pressure pin;
A fixing plate coupled to a lower portion of the housing and having a communicating portion communicating with the hollow portion of the guide portion;
And an elastic member which is provided on the fixing plate and is elastically inserted into the fixing groove to restrain downward movement of the pressure pin and is elastically deformed when the pressure pin is lifted so as to retain the opening of the steam outlet, stopper; And
And a pressure packing provided at a lower portion of the pressure pin,
And an upper portion of the temporary fixing groove is formed on the upper surface of the elastic stopper so as to be fixedly fixed to the upper surface of the elastic stopper. The method according to claim 1,
Wherein a plurality of coupling grooves are formed on a lower surface of the housing, and coupling protrusions, which are fitted and fixed to the coupling grooves, protrude from the upper surface of the fixing plate. 3. The method of claim 2,
The elastic stopper
A core portion that is wound to form an elastic restoring force and is held by one of the engaging projections;
An elastic portion extending to one side of the core portion so as to press the outer periphery of the pressure pin;
And a supporting portion extending to the other side of the core portion so as to be supported by the other one of the coupling projections,
Wherein the fixing plate has a stopper restricting portion for restricting the upper portion of the elastic portion. The method according to claim 1,
Wherein the elastic stopper is disposed opposite to both sides of the pressure pin,
Wherein the upper end of the pressure pin is formed with an insertion guide groove which is recessed along both side portions facing the elastic stopper and inclined radially inwardly toward the upper side of the outer edge surface. The method according to claim 1,
Wherein the elastic stopper is disposed opposite to both sides of the pressure pin,
Wherein the fixing plate is divided so as to cover a lower portion of each of the elastic stoppers. The method according to claim 1,
And the lower portion of the tread groove is formed as an inclined surface on which the elastic stopper is slidably moved. The method according to claim 1,
Wherein the guide part is provided with a permanent magnet which is pressed by the elastic spring and is brought into close contact with the lower surface of the housing.

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