CN214104145U - Safety structure for opening and closing cover and pressure cooker - Google Patents
Safety structure for opening and closing cover and pressure cooker Download PDFInfo
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- CN214104145U CN214104145U CN202022591249.8U CN202022591249U CN214104145U CN 214104145 U CN214104145 U CN 214104145U CN 202022591249 U CN202022591249 U CN 202022591249U CN 214104145 U CN214104145 U CN 214104145U
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Abstract
The utility model discloses an open and shut and cover safety structure, including the pot cover, be provided with exhaust relief valve, exhaust ejector pin on the pot cover, be used for rotating to open and shut the rotatory thumb wheel of pot cover and be used for controlling the switch of pot power, wherein, the exhaust ejector pin is along directional the direction slip of exhaust relief valve set up in on the pot cover, rotatory thumb wheel rotary drive exhaust ejector pin slides in order to open and close the exhaust relief valve, just rotatory thumb wheel is rotatory in order to open and close the switch utilizes rotatory thumb wheel to combine exhaust ejector pin to exhaust, seal the exhaust relief valve when doing the action of opening and shutting the lid, can release pot inside steam or steam in advance when uncapping, has avoided the problem that causes because of steam or steam when uncapping to linkage switch's thereby reach the guarantee to product closure security, has solved because of opening and shutting the gas leakage that the cover is not in place to the state under the start arousing, The problems of uncooked rice cooking, pot explosion and the like. The utility model also discloses a pressure cooker.
Description
Technical Field
The utility model relates to a cooking utensil technical field especially relates to an open and shut and cover safety structure and pressure cooker.
Background
At present, pot products in the field of household kitchen appliances are common products for consumers, but the pot products are often complained in the market to reflect the adverse phenomena of air leakage, uncooked rice cooking or pot explosion and the like of the products during working. The main reason is that the boiler cover and the opening and closing cover of the boiler body are not provided with a cover closing safety protection mechanism, so that the boiler is started under the state that the cover is not completely closed, the problems of air leakage and uncooked rice cooking are caused, or scald is caused by the violent discharge of hot air or steam when the cover is opened.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one defect in the prior art, the utility model provides an open-close cover safety structure.
The utility model discloses a solve the technical scheme that its problem adopted and be:
a safety structure for opening and closing a cover comprises a pot cover, wherein an exhaust safety valve, an exhaust ejector rod, a rotary thumb wheel for rotating to open and close the pot cover and a switch for controlling a power supply of the pot are arranged on the pot cover,
the exhaust ejector rod is arranged on the pot cover in a sliding mode along the direction pointing to the exhaust safety valve, the rotary thumb wheel rotates to drive the exhaust ejector rod to slide to open and close the exhaust safety valve, and the rotary thumb wheel rotates to open and close the switch;
when the rotary thumb wheel rotates to the uncovering position in a first direction, the rotary thumb wheel drives the exhaust ejector rod to abut against and open the exhaust safety valve, and the rotary thumb wheel disconnects the switch;
when the rotary thumb wheel rotates to the cover closing position in the second direction, the rotary thumb wheel drives the exhaust ejector rod to be separated from the exhaust safety valve and close the exhaust safety valve, and the rotary thumb wheel is communicated with the switch;
the first direction and the second direction are opposite directions.
Furthermore, the rotary thumb wheel is provided with a guide groove, the guide groove comprises a push-open section and a pull-back section, wherein the distance between the push-open section and the wheel center of the rotary thumb wheel is greater than the distance between the pull-back section and the wheel center of the rotary thumb wheel, and the exhaust ejector rod is connected with the guide groove and can be driven by the rotary thumb wheel to move between a cover opening position and a cover closing position.
Further, the exhaust safety valve comprises an exhaust rod with an air flow channel and a counterweight sealing module, the counterweight sealing module is pressed on the top end of the exhaust rod under the action of gravity to seal the air flow channel, and the exhaust ejector rod is driven by the rotary thumb wheel to prop against the counterweight sealing module obliquely to open the air flow channel.
Further, the counter weight sealing module includes sealing silica gel, fixed plate, balancing weight and casing, sealing silica gel passes through the fixed plate with the casing is connected, the balancing weight set up in the casing, sealing silica gel under the action of gravity of balancing weight the pressure joint in the top of air discharge stem is in order to seal the air flow channel.
Furthermore, the exhaust ejector rod comprises an ejector rod body, an ejector rod buckling part and a contact rod, the contact rod is fixedly connected to the side edge of the ejector rod body, the ejector rod buckling part is fixedly connected to the upper portion of the ejector rod body, the ejector rod buckling part is sleeved in the guide groove, and the rotary shifting wheel rotationally drives the ejector rod buckling part to linearly slide so as to drive the contact rod to be obliquely ejected or separated from the counterweight sealing module. Specifically, when the rotary thumb wheel rotates to the uncovering position in a first direction, the ejector rod buckling part is located at the tail end of the push-open section, and the contact rod pushes the counterweight sealing module obliquely; when the rotary dial wheel rotates to the cover closing position according to the second direction, the ejector rod buckling part is located at the tail end of the pull-back section, and the contact rod is separated from the counterweight sealing module.
Further, the cooker cover comprises a base plate, an exhaust chamber used for containing the exhaust safety valve is arranged on the base plate, a sliding sleeve used for being connected with the contact rod in a sliding mode is arranged on the side wall of the exhaust chamber, and a sealing ring is arranged in the sliding sleeve, so that the sliding sleeve has the functions of sealing and guiding.
Further, the feeler lever includes sealed section and touch section, sealed section connect in touch between section and the ejector pin body, the diameter of sealed section is less than touch the diameter of section, the sealing washer cup joint in sealed section, the internal diameter of sliding sleeve with touch the diameter phase-match of section.
Furthermore, the switch is a normally open type microswitch which is positioned on the side edge of the periphery of the rotary thumb wheel, and a notch part corresponding to the normally open type microswitch is formed on the periphery of the rotary thumb wheel in an inwards concave manner; when the rotary thumb wheel is in the uncovering position, the normally open type microswitch is positioned at the gap part, and the normally open type microswitch is powered off; when the rotary thumb wheel rotates in a second direction to enable the exhaust ejector rod to be separated from the exhaust safety valve and close the exhaust safety valve, the periphery of the rotary thumb wheel presses a switch key of the normally open type microswitch, and the normally open type microswitch is electrified.
Furthermore, the rotary shifting wheel is provided with two shifting rods, the two shifting rods are oppositely arranged on two sides of the wheel center of the rotary shifting wheel, and the distances between the two shifting rods and the wheel center of the rotary shifting wheel are unequal.
The utility model also provides a pressure cooker, pressure cooker includes open and shut and cover safety structure and the pot body, the pot cover lid fits on the pot body.
To sum up, the utility model provides an open and shut lid safety structure has following technological effect:
the rotary thumb wheel is combined with the exhaust ejector rod to exhaust and seal the exhaust safety valve when the cover is opened and closed, hot gas or steam in the cooker can be released in advance when the cover is opened, the problem of scalding caused by the hot gas or the steam when the cover is opened is avoided, the on-off of the switch is linked to guarantee the safety of the product cover closing, and the problems of gas leakage, uncooked rice cooking, pot explosion and the like caused by starting under the condition that the cover is not closed in place are solved. The utility model discloses an other beneficial effects will demonstrate in concrete implementation mode.
Drawings
Fig. 1 is a schematic structural view of a safety structure of an opening and closing cover according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pressure cooker according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the pressure cooker of FIG. 2;
FIG. 4 is an enlarged view of part A of FIG. 3;
fig. 5 is a schematic structural diagram of an exhaust ejector rod according to an embodiment of the present invention;
fig. 6 is a schematic view of the linkage between the linkage parts when the exhaust safety valve is in the open state according to the embodiment of the present invention;
fig. 7 is a schematic diagram of linkage between the linkage parts in the closed state of the exhaust safety valve according to the embodiment of the present invention.
Wherein the reference numerals have the following meanings:
1. a pot cover; 11. an exhaust safety valve; 111. an exhaust rod; 1111. an air flow passage; 112. a counterweight sealing module; 1121. sealing the silica gel; 1122. a fixing plate; 1123. a balancing weight; 1124. a housing; 12. an exhaust ejector rod; 121. a mandril body; 122. a top rod buckling part; 123. a feeler lever; 1231. a sealing section; 1232. a contact section; 13. rotating the dial wheel; 131. a guide groove; 1311. pushing the section open; 1312. a pull-back section; 132. a notch portion; 133. a transition section; 134. a deflector rod; 14. a switch; 15. a substrate; 151. an exhaust chamber; 152. a sliding sleeve; 153. and (5) sealing rings.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 7, the utility model discloses a safety structure for opening and closing a cover, which comprises a pot cover 1, the pot cover 1 is provided with an exhaust safety valve 11, an exhaust ejector rod 12, a rotary thumb wheel 13 for rotating the pot cover 1 and a switch 14 for controlling the power supply of the pot. The utility model also discloses a pressure cooker, pressure cooker includes open and shut and cover safety structure and the pot body 2, 1 covers of pot cover fit on the pot body 2, wherein, exhaust relief valve 11 intercommunication the inside and the outside of the pot body 2.
In this embodiment, the pot cover 1 can be hinged or screwed on the pot body 2, and the utility model discloses it is right the concrete connection mode of pot cover 1 and pot body 2 does not limit.
It can be understood that, since the rotating thumb wheel 13 can open and close the pot cover 1 when rotating, correspondingly, a locking structure for locking or unlocking with the pot body 2 is provided on the pot cover 1, and the locking structure is linked with the rotating thumb wheel 13, that is, the locking or unlocking of the locking structure is realized while rotating the rotating thumb wheel 13. In the present invention, the locking structure is a prior art, and the specific structure thereof is well known to those skilled in the art, and the locking structure does not belong to the protection scope claimed in the present application, so that the detailed description thereof is omitted.
In this embodiment, the exhaust plunger 12 is slidably disposed on the pot cover 1 in a direction pointing to the exhaust safety valve 11, the rotary dial wheel 13 rotatably drives the exhaust plunger 12 to slide to open and close the exhaust safety valve 11, and the rotary dial wheel 13 rotates to open and close the switch 14.
The matching relationship among the exhaust safety valve 11, the exhaust ejector rod 12, the rotary thumb wheel 13 and the switch 14 is as follows:
when the rotary thumb wheel 13 rotates to the uncovering position in the first direction, the rotary thumb wheel 13 drives the exhaust ejector rod 12 to abut against and open the exhaust safety valve 11, and the rotary thumb wheel 13 disconnects the switch 14;
when the rotary thumb wheel 13 rotates to the cover closing position according to the second direction, the rotary thumb wheel 13 drives the exhaust ejector rod 12 to be separated and close the exhaust safety valve 11, and the rotary thumb wheel 13 is communicated with the switch 14;
the first direction and the second direction are opposite directions.
Therefore, the utility model discloses utilize rotatory thumb wheel 13 combines exhaust ejector pin 12 to be right when doing the action of opening and shutting the lid exhaust relief valve 11 exhausts, seals, can rotate when uncapping rotatory thumb wheel 13 is with the drive exhaust ejector pin 12 butt is opened exhaust relief valve 11 to release the inside steam of pot or steam in advance, caused the problem of scald because of steam or steam when having avoided uncapping, the security when ensureing to use.
In the process of rotating the rotary thumb wheel 13 to drive the exhaust ejector rod 12, the rotary thumb wheel 13 is simultaneously linked with the switch 14, so that the safety of closing the cover of the product is guaranteed by controlling the on-off of the switch 4 in a linkage manner, and the problems of air leakage, cooked rice, pot explosion and the like caused by starting under the condition that the cover is not closed in place are solved.
Referring to fig. 3 and 4, in the present embodiment, the exhaust relief valve 11 includes an exhaust rod 111 having an air flow channel 1111 and a counterweight sealing module 112, the counterweight sealing module 112 is pressed against the top end of the exhaust rod 111 under the action of gravity to seal the air flow channel 1111, and the exhaust plunger 12 is driven by the rotary thumb wheel 13 to tilt against the counterweight sealing module 112 to open the air flow channel 1111. Specifically, exhaust rod 111 is hollow tubulose and vertical set up in on the pot cover 1, exhaust rod 111's bottom stretches into in the pot body 2, exhaust rod 111's bottom is air channel 1111's air inlet, exhaust rod 111's top is air channel 1111's gas vent.
When the exhaust safety valve 11 needs to be opened, the rotary thumb wheel 13 is rotated in a first direction to drive the exhaust ejector rod 12 to slide towards the exhaust safety valve 11, the exhaust ejector rod 12 abuts against the counterweight sealing module 112, so that a gap is formed between the counterweight sealing module 112 and the top end of the exhaust rod 111, and the air flow channel 1111 is opened to exhaust; when the exhaust safety valve 11 needs to be closed, the rotary thumb wheel 13 is rotated in the second direction to drive the exhaust ejector rod 12 to withdraw, and the counterweight sealing module 112 is reset under the action of the gravity of itself to completely abut against the top end of the exhaust rod 111, so that the air flow channel 1111 is sealed to be closed.
Therefore, the exhaust is realized by the way that the rotary thumb wheel 13 drives the exhaust ejector rod 12 to slide to push against the inclined counterweight sealing module 112, and the counterweight sealing module 112 resets by self gravity to realize sealing, so that the structure is simple, and the problem of abrasion caused by matching is avoided.
Referring to fig. 4, in the present embodiment, the counterweight sealing module 112 includes a sealing silica gel 1121, a fixing plate 1122, a counterweight block 1123, and a housing 1124, the sealing silica gel 1121 is connected to the housing 1124 through the fixing plate 1122, the counterweight block 1123 is disposed in the housing 1124, and the sealing silica gel 1121 is pressed against the top end of the exhaust rod 111 under the action of the gravity of the counterweight block 1123 to seal the air flow channel 1111. Therefore, the sealing silica gel 1121 is used for sealing the air flow channel 1111, the balancing weight 1123 is used for providing gravity for resetting, and the structural combination facilitates the manufacturing and production of the counterweight sealing module 112 and reduces the cost.
Preferably, the sealing silica gel 1121 is in an inverted cone shape, and the sealing silica gel 1121 is inserted into the air outlet of the air flow channel 1111. Therefore, when the exhaust ejector rod 12 tilts the counterweight sealing module 112, the sealing silica gel 1121 is not easily separated from the exhaust port of the air flow channel 1111 completely, so as to facilitate sealing during resetting, and avoid the problem that the counterweight sealing module 112 cannot be reset for sealing.
Referring to fig. 4, in the present embodiment, the exhaust push rod 12 includes a push rod body 121, a push rod buckle portion 122 and a contact rod 123, the contact rod 123 is fixedly connected to a side of the push rod body 121, the push rod buckle portion 122 is fixedly connected above the push rod body 121, and the rotary dial wheel 13 rotates to drive the push rod buckle portion 122 to linearly slide so as to drive the contact rod 123 to tilt or separate from the counterweight sealing module 112. Specifically, the rotating thumb wheel 13 is provided with a guide groove 131, the guide groove 131 includes a push-open section 1311 and a pull-back section 1312, wherein a distance between the push-open section 1311 and a wheel center of the rotating thumb wheel 13 is greater than a distance between the pull-back section 1312 and the wheel center of the rotating thumb wheel 13, and the push rod buckle portion 122 is sleeved in the guide groove 131.
The specific matching relationship among the exhaust ejector rod 12, the rotary thumb wheel 13 and the counterweight sealing module 112 is as follows:
when the rotating thumb wheel 13 rotates to the uncovering position in the first direction, the push rod buckling part 122 is located at the tail end of the push-open section 1311, and the contact rod 123 pushes against the counterweight sealing module 112; when the rotary thumb wheel 13 rotates to the cover closing position in the second direction, the push rod buckling part 122 is located at the end of the pull-back section 1312, and the contact rod 123 is separated from the counterweight sealing module 112.
Therefore, the ejector rod buckling part 122 of the exhaust ejector rod 12 is sleeved in the guide groove 131 of the rotary thumb wheel 13, the sliding stroke of the exhaust ejector rod 12 is controlled by utilizing the push-open section 1311 and the pull-back section 1312 of the guide groove 131 to open and close the exhaust safety valve 11, and the rotary motion of the rotary thumb wheel 13 is converted into the linear motion of the exhaust ejector rod 12 to open or close the exhaust safety valve 11 by ingeniously utilizing the shape characteristics of the push-open section 1311 and the pull-back section 1312 of the guide groove 131, so that the short linear stroke is realized by utilizing a larger rotation angle, the opening and closing action is smoother, and the clamping is not easy.
Referring to fig. 4, in the present embodiment, the pot cover 1 includes a base plate 15, an exhaust chamber 151 for accommodating the exhaust safety valve 11 is formed on the base plate 15, a sliding sleeve 152 for slidably connecting the contact rod 123 is disposed on a side wall of the exhaust chamber 151, and a sealing ring 153 is disposed in the sliding sleeve 152, so that the sliding sleeve 152 has sealing and guiding functions. The sliding sleeve 152 guides the contact rod 123, so that no additional guide structure is needed to simplify the structure of the pot cover, and in combination with the sealing ring 153, hot air or steam exhausted by the exhaust and safety valve 11 is prevented from leaking out of the sliding sleeve 152, so as to protect the rotary thumb wheel 13 and the switch 14 from the hot air or steam, and also to protect the hands of an operator from being scalded.
Referring to fig. 4 and 5, preferably, the contact rod 123 includes a sealing section 1231 and a contacting section 1232, the sealing section 1231 is connected between the contacting section 1232 and the ejector rod body 121, the diameter of the sealing section 1231 is smaller than the diameter of the contacting section 1232, the sealing ring 153 is sleeved on the sealing section 1231, and the inner diameter of the sliding sleeve 152 matches with the diameter of the contacting section 1232. The two-section contact rod 123 is matched with the sliding sleeve 152 and the sealing ring 153 to further enhance the guidance and sealing performance.
Preferably, the sliding sleeve 152 and the sealing ring 153 are integrally formed.
Referring to fig. 1, 6 and 7, in the present embodiment, the switch 14 is a normally open type microswitch, the normally open type microswitch is located at a side edge of the outer periphery of the rotary dial 13, and a notch portion 132 corresponding to the normally open type microswitch is formed on the outer periphery of the rotary dial 13 and is recessed inwards.
The specific matching relationship between the rotary thumb wheel 13 and the normally open microswitch is as follows:
when the rotary thumb wheel 13 is in the uncovering position, the normally open type microswitch is located in the notch portion 132, and the normally open type microswitch is powered off;
when the rotary thumb wheel 13 rotates in a second direction to make the exhaust ejector rod 12 separate from and close the exhaust safety valve 11, the periphery of the rotary thumb wheel 13 presses a switch button of the normally open microswitch, and the normally open microswitch is electrified.
Therefore, when the cover is opened, the rotary dial wheel 13 is rotated to the cover opening position according to the first direction, the exhaust safety valve 11 enters the exhaust state, the notch part 132 of the rotary dial wheel 13 rotates to the position corresponding to the normally open type microswitch, and the switch button of the normally open type microswitch is not pressed by the periphery of the rotary dial wheel 13 any more to cut off the power supply of the pot under the cover opening state, so that the power supply disconnection of the pot under the cover opening state is ensured, and the safety is enhanced; when the cover needs to be closed and electrified, only after the exhaust safety valve 11 is closed, the switch button of the normally open microswitch can be pressed by the periphery of the rotary thumb wheel 13 to be completely closed and electrified, so that the safety of closing the cover is ensured, and the problems of air leakage, cooking insufficiency, pot explosion and the like caused by starting under the condition that the cover is not closed in place are solved.
Preferably, a transition portion 133 for gently pressing the switch button of the switch 14 is provided between the notch portion 132 and the outer periphery of the rotary dial 13. Through the transition part 133, in the switching process of the switch 14, the stress point of the switch key of the switch 14 is kept at the tail end of the elastic sheet, so that the switch key of the switch 14 is prevented from being damaged due to strain.
In this embodiment, in order to facilitate the rotation operation of the rotary dial wheel 13, a dial 134 is disposed on the rotary dial wheel 13.
Preferably, two shift levers 134 are arranged, the two shift levers 134 are oppositely arranged on two sides of the wheel center of the rotary dial wheel 13, and the distances between the two shift levers 134 and the wheel center of the rotary dial wheel 13 are not equal. Therefore, the two shift levers 134 respectively have different torques so as to adapt to the selection of users at different ages and enhance the use experience.
In this embodiment, the pot cover 1 can be hinged or screwed on the pot body 2, and the utility model discloses it is right the concrete connection mode of pot cover 1 and pot body 2 does not limit.
It should be noted that, in this embodiment, a locking structure may be further disposed between the pot cover 1 and the pot body 2, and the locking structure may be linked with the rotary thumb wheel 13, that is, when the rotary thumb wheel 13 is rotated, the locking or unlocking of the locking structure is realized. Indeed, the locking structure may also be a free standing structure, i.e. it is not coupled to the rotary thumb wheel 13. In the present invention, the locking structure is a prior art, and does not belong to the protection scope claimed in the present application, so that the locking structure is not specifically described herein.
It should be noted that, as shown in fig. 6 and 7, the first direction is a clockwise direction, and the second direction is a counterclockwise direction; the cover opening position is a limit position that restricts the rotary dial wheel 13 from rotating clockwise any more, and the cover closing position is a limit position that restricts the rotary dial wheel 13 from rotating counterclockwise any more, which is specifically embodied in this embodiment that the cover opening position is a position when the rotary dial wheel 13 is rotated clockwise until the push rod buckle portion 122 is located at the end of the push-open section 1312, and the cover closing position is a position when the rotary dial wheel 13 is rotated counterclockwise until the push rod buckle portion 122 is located at the end of the pull-back section 1311.
To sum up, the utility model provides an open and shut and cover safety structure utilizes rotatory thumb wheel 13 to combine exhaust ejector pin 12 to exhaust, seal exhaust relief valve 11 when doing the open and shut and cover the action, can release pot inside steam or steam in advance when uncapping, thereby has avoided uncapping the problem that causes the scald because of steam or steam, thereby linked switch 14's break-make reaches the guarantee to product close and cover the security, has solved because of closing to cover the gas leakage that arouses under the out-of-position state, cook not ripe, explode unfavorable problems such as pot.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides an open and shut and cover safety structure which characterized in that: comprises a pot cover, an exhaust safety valve, an exhaust ejector rod, a rotary thumb wheel for rotating to open and close the pot cover and a switch for controlling the power supply of the pot are arranged on the pot cover,
the exhaust ejector rod is arranged on the pot cover in a sliding mode along the direction pointing to the exhaust safety valve, the rotary thumb wheel rotates to drive the exhaust ejector rod to slide to open and close the exhaust safety valve, and the rotary thumb wheel rotates to open and close the switch;
when the rotary thumb wheel rotates to the uncovering position in a first direction, the rotary thumb wheel drives the exhaust ejector rod to abut against and open the exhaust safety valve, and the rotary thumb wheel disconnects the switch;
when the rotary thumb wheel rotates to the cover closing position in the second direction, the rotary thumb wheel drives the exhaust ejector rod to be separated from the exhaust safety valve and close the exhaust safety valve, and the rotary thumb wheel is communicated with the switch;
the first direction and the second direction are opposite directions.
2. The cover opening and closing safety structure according to claim 1, wherein: the rotary shifting wheel is provided with a guide groove, the guide groove comprises a push-open section and a pull-back section, the distance between the push-open section and the wheel center of the rotary shifting wheel is larger than the distance between the pull-back section and the wheel center of the rotary shifting wheel, and the exhaust ejector rod is connected with the guide groove and can be driven by the rotary shifting wheel to move between a cover opening position and a cover closing position.
3. The cover opening and closing safety structure according to claim 2, wherein: the exhaust safety valve comprises an exhaust rod with an air flow channel and a counterweight sealing module, the counterweight sealing module is pressed on the top end of the exhaust rod under the action of gravity to seal the air flow channel, and the exhaust ejector rod is driven by the rotary thumb wheel to prop against the counterweight sealing module to open the air flow channel.
4. A cover opening and closing safety structure according to claim 3, wherein: the counterweight sealing module comprises a sealing silica gel, a fixing plate, a balancing weight and a shell, wherein the sealing silica gel passes through the fixing plate and the shell are connected, the balancing weight is arranged in the shell, and the sealing silica gel is pressed on the top end of the exhaust rod under the action of gravity of the balancing weight to seal the air flow channel.
5. A cover opening and closing safety structure according to claim 3, wherein: the exhaust ejector rod comprises an ejector rod body, an ejector rod buckling part and a contact rod, the contact rod is fixedly connected to the side edge of the ejector rod body, the ejector rod buckling part is fixedly connected to the upper portion of the ejector rod body, the ejector rod buckling part is sleeved in the guide groove, and the rotary shifting wheel rotationally drives the ejector rod buckling part to linearly slide so as to drive the contact rod to lean against or separate from the counterweight sealing module.
6. The cover opening and closing safety structure according to claim 5, wherein: the cooker cover comprises a base plate, wherein an exhaust chamber used for containing the exhaust safety valve is arranged on the base plate, a sliding sleeve used for being connected with the feeler lever in a sliding mode is arranged on the side wall of the exhaust chamber, and a sealing ring is arranged in the sliding sleeve, so that the sliding sleeve has the functions of sealing and guiding.
7. The cover opening and closing safety structure according to claim 6, wherein: the feeler lever includes sealed section and touch section, sealed section connect in touch between section and the ejector pin body, the diameter of sealed section is less than touch the diameter of section, the sealing washer cup joint in sealed section, the internal diameter of sliding sleeve with touch the diameter phase-match of section.
8. The cover opening and closing safety structure according to claim 1, wherein: the switch is a normally open type microswitch which is positioned on the side edge of the periphery of the rotary thumb wheel, and a notch part corresponding to the normally open type microswitch is formed on the periphery of the rotary thumb wheel in an inward concave manner; when the rotary thumb wheel is in the uncovering position, the normally open type microswitch is positioned at the gap part, and the normally open type microswitch is powered off; when the rotary thumb wheel rotates in a second direction to enable the exhaust ejector rod to be separated from the exhaust safety valve and close the exhaust safety valve, the periphery of the rotary thumb wheel presses a switch key of the normally open type microswitch, and the normally open type microswitch is electrified.
9. The cover opening and closing safety structure according to claim 1, wherein: the rotating shifting wheel is provided with two shifting rods, the two shifting rods are oppositely arranged on two sides of the wheel center of the rotating shifting wheel, and the distances between the two shifting rods and the wheel center of the rotating shifting wheel are unequal.
10. A pressure cooker, characterized in that: comprises the opening-closing cover safety structure as claimed in any one of claims 1 to 9 and a pot body, wherein the pot cover is covered on the pot body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022591249.8U CN214104145U (en) | 2020-11-10 | 2020-11-10 | Safety structure for opening and closing cover and pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022591249.8U CN214104145U (en) | 2020-11-10 | 2020-11-10 | Safety structure for opening and closing cover and pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214104145U true CN214104145U (en) | 2021-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022591249.8U Active CN214104145U (en) | 2020-11-10 | 2020-11-10 | Safety structure for opening and closing cover and pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214104145U (en) |
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2020
- 2020-11-10 CN CN202022591249.8U patent/CN214104145U/en active Active
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