CN217471715U - Pressure-limiting valve controller for pressure cooker - Google Patents

Abstract

The embodiment of the utility model discloses a pressure cooker pressure limiting valve control device, the device includes the pot body, the lid, the pressure limiting valve, reset assembly and control assembly, control assembly includes driving medium and fly leaf, the first end and the second end of driving medium are located fly leaf and pressure limiting valve respectively, the fly leaf is equipped with spacing post, reset assembly includes the moving member to and set up butt structure and the limit structure on the moving member, the moving member and lid sliding connection; in the process that the cover body closes the cover on the pot body, the abutting structure abuts against the pot teeth of the pot body and drives the moving part to slide, meanwhile, the limiting structure can control the limiting column to move, so that the movable plate is located at the first position to release the pressure limiting valve, therefore, the pressure limiting valve can move downwards under the action of gravity to reset, the pressure limiting valve is switched from an exhaust state to a closing state, the cover body is closed on the pot body to act and is in linkage control with the resetting component, the resetting and closing of the pressure limiting valve are realized, and the control of the pressure limiting valve is simplified.

Description

Pressure-limiting valve controller for pressure cooker

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a pressure cooker pressure limiting valve controlling means.

Background

After the electric pressure cooker cooks food, if through natural cooling, then need longer latency, under the ordinary condition, can jack up the pressure limiting valve and carry out manual exhaust pressure release, after exhaust pressure release is accomplished, uncap the electric pressure cooker in order to accelerate the cooling, when cooking the use to the electric pressure cooker once more, because the pressure limiting valve still is in the exhaust state, therefore need manual control to make the pressure limiting valve reset, if forget to control the pressure limiting valve and reset, then can influence the work of cooking of electric pressure cooker, user experience is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure cooker pressure limiting valve controlling means aims at solving the technical problem that when current electric pressure cooker is used for cooking, because the pressure limiting valve is still in the exhaust state, the pressure limiting valve needs to be manually controlled to reset, and if forgetting to control the reset of the pressure limiting valve, the cooking work of the electric pressure cooker can be influenced.

The utility model provides a pressure cooker pressure limiting valve controlling means, include: the pressure limiting valve, the reset assembly and the control assembly are arranged on the cover body, the control assembly comprises a transmission part and a movable plate, the first end and the second end of the transmission part are respectively arranged on the movable plate and the pressure limiting valve, and when the movable plate is at the first position or the second position, the movable plate controls the transmission part to limit the pressure limiting valve to be in a closed state or an exhaust state;

the movable plate is provided with a limiting column, the reset assembly comprises a moving member, and an abutting structure and a limiting structure which are arranged on the moving member, and the moving member is connected with the cover body in a sliding manner;

in the process that the cover body is covered on the pot body, the abutting structure abuts against the pot teeth of the pot body and drives the moving piece to slide, and meanwhile, the limiting structure can control the limiting column to move so as to enable the movable plate to be located at the first position.

In one embodiment, the reset assembly further comprises a first elastic member, the moving member further comprises a mounting post, the cover body is further provided with a mounting opening for inserting the mounting post, and the first elastic member is sleeved on the mounting post and arranged between the moving member and the cover body;

the pressure limiting valve control device of the pressure cooker further comprises a fixing piece, a fixing hole is formed in the cover body, a sliding groove is formed in the moving piece, and the fixing piece penetrates through the sliding groove and is connected with the hole wall of the fixing hole.

In one embodiment, after the cover body is completely covered on the pot body, the abutting structure leaves the pot teeth of the pot body and drives the moving member to slide, and the limiting structure is far away from the limiting column.

In one embodiment, the limiting structure is in a hook shape, and the limiting column is in a column shape.

In one embodiment, the control assembly further includes a control button, the movable plate is disposed on the inner sidewall of the cover, the control button is disposed on the outer sidewall of the cover, the cover is provided with a through channel for communicating the outer sidewall of the cover with the inner sidewall of the cover, and the control button is connected to the movable plate through the through channel.

In one embodiment, a groove is formed on the outer side wall of the cover body, the control button is arranged in the groove, and the control button slides or rotates in the groove and can drive the movable plate to move between the first position and the second position.

In one embodiment, the transmission member includes the first end and the second end that are disposed opposite to each other, and a movable end located between the first end and the second end, the movable end is movably connected to the cover, the first end is rotatably connected to the movable plate, the second end has an inclined surface, and during the movement of the movable plate from the first position to the second position, the second end of the transmission member can be driven to move close to the pressure limiting valve, so as to jack up the pressure limiting valve via the inclined surface, and the pressure limiting valve enters the exhaust state from the closed state.

In one embodiment, the transmission member includes a first end and a second end that are disposed opposite to each other, and a movable end located between the first end and the second end, the movable end is movably connected to the cover, the movable plate is provided with a protrusion structure, the protrusion structure has a locking surface and a driving surface, the driving surface is disposed obliquely relative to the locking surface, and during the movement of the movable plate from the first position to the second position, the first end of the transmission member can be driven to slide from the driving surface to the locking surface to drive the second end to jack up the pressure limiting valve, so that the pressure limiting valve enters the exhaust state from the closed state.

In one embodiment, a stop surface is provided between the drive surface and the locking surface for retaining the first end of the drive member on the locking surface.

In one embodiment, the pressure-limiting valve control device of the pressure cooker further comprises a second elastic member, and the second elastic member elastically connects the cover body and the second end of the transmission member.

Adopt the embodiment of the utility model provides a, following beneficial effect has:

adopt the utility model discloses a pressure cooker pressure limiting valve controlling means, the in-process that closes the lid on the pot body at the lid, the pot tooth of the butt structure butt pot body drives the moving member and slides, limit structure can control spacing post removal simultaneously, in order to be in the first position with the fly leaf, with the release pressure limiting valve, therefore the pressure limiting valve can move downwards under the effect of gravity and reset, switch over to the off-state from exhaust state, act on the pot body through closing the lid, with reset block coordinated control, realize that the reseing of pressure limiting valve closes, the control of pressure limiting valve has been simplified, reduce user manual operation, user experience is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a pressure-limiting valve control apparatus for a pressure cooker in one embodiment.

Fig. 2 is another angle view of the pressure-limiting valve control means of the pressure cooker shown in fig. 1.

Fig. 3 is another angle view schematically showing the control means for the pressure-limiting valve of the pressure cooker shown in fig. 1.

Fig. 4 is a bottom view of the pressure-limiting valve control means of the pressure cooker shown in fig. 1.

Fig. 5 is a sectional view of the pressure-limiting valve control means of the pressure cooker shown in fig. 1.

Fig. 6 is a schematic view of the cover shown in fig. 1.

Fig. 7 is a schematic view of the movable plate in the valve control device for pressure cooker shown in fig. 1.

FIG. 8 is a schematic view of a moving member in the pressure-limiting valve control device of the pressure cooker shown in FIG. 1.

Fig. 9 is a schematic view of a transmission member in the pressure-limiting valve control device of the pressure cooker shown in fig. 1.

Fig. 10 is a schematic view of a control knob in the pressure-limiting valve control device of the pressure cooker shown in fig. 1.

Fig. 11 is a bottom view of the control knob of fig. 10.

Fig. 12 is a schematic view of an elastic pad in the valve control device for pressure cooker shown in fig. 1.

Fig. 13 is a schematic view of a control means for the pressure-limiting valve of the pressure cooker in accordance with another embodiment.

Fig. 14 is a partial schematic view of the pressure-limiting valve control means of the pressure cooker shown in fig. 13.

Fig. 15 is a partial schematic view one of the pressure-limiting valve control means of the pressure cooker shown in fig. 13.

Fig. 16 is a second partial schematic view of the pressure-limiting valve control device of the pressure cooker shown in fig. 13.

Fig. 17 is a schematic view of a movable plate in the pressure-limiting valve control device of the pressure cooker shown in fig. 13.

FIG. 18 is a schematic view of a transmission member in the valve control device for pressure cooker pressure limiting shown in FIG. 13.

Fig. 19 is a schematic view of the moving member in the pressure-limiting valve controlling device of the pressure cooker shown in fig. 13.

FIG. 20 is a schematic view of a pot body having a tooth in a pressure-limiting valve control device of a pressure cooker according to an embodiment.

Reference numerals: 100. a cover body; 110. an installation port; 120. a fixing hole; 130. a through passage; 140. a groove; 200. a pressure limiting valve;

300. resetting the assembly; 310. a moving member; 311. a limiting structure; 312. an abutting structure; 313. mounting a column; 314. a sliding groove; 320. a first elastic member; 330. a fixing member;

400. a control component; 410. a transmission member; 411. a first end; 412. a second end; 413. a movable end; 414. An inclined surface; 415. a circular arc bulge; 420. a control button; 421. a first plug-in column; 422. an arc-shaped surface; 430. A movable plate; 431. a limiting column; 432. connecting columns; 4321. connecting holes; 433. a first plug hole; 434. A raised structure; 4341. a locking surface; 4342. a drive face; 4343. a stop surface; 435. a second plug hole; 440. a second elastic member;

510. a connecting member; 520. an elastic pad; 521. an elastic channel; 600. a pan body; 610. and (4) cooking teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

An embodiment of the utility model provides a pressure cooker, this pressure cooker is the pan in kitchen. The pressure cooker applies pressure to water by the physical phenomenon that the boiling point of liquid can be increased under higher air pressure, so that the water can reach higher temperature without boiling, and the efficiency of stewing food is accelerated. The pressure cooker pressure limiting valve control device is one of important components of the pressure cooker, the pressure cooker pressure limiting valve control device can be switched between a closed state and an exhaust state, the pressure limiting valve in the exhaust state can exhaust and release pressure, and after the exhaust and release pressure is completed, the pressure cooker is opened to accelerate the cooling of food.

Referring to fig. 1 to 20, an embodiment of a pressure limiting valve control device for a pressure cooker includes a cooker body 600, a cover body 100, a pressure limiting valve 200, a reset assembly 300, and a control assembly 400, wherein the pressure limiting valve 200, the reset assembly 300, and the control assembly 400 are all disposed on the cover body 100, the control assembly 400 includes a transmission member 410 and a movable plate 430, a first end 411 and a second end 412 of the transmission member 410 are respectively disposed on the movable plate 430 and the pressure limiting valve 200, when the movable plate 430 is at a first position or a second position, the movable plate 430 controls the transmission member 410 to limit the pressure limiting valve 200 to be in a closed state or an exhaust state, and when the movable plate 430 is at the exhaust state of the pressure limiting valve 200, the exhaust and pressure relief of the pressure cooker can be achieved.

In the present embodiment, the movable plate 430 is provided with a position-limiting post 431, the resetting assembly 300 includes a moving member 310, and an abutting structure 312 and a position-limiting structure 311 which are arranged on the moving member 310, the moving member 310 is slidably connected with the cover 100; in the process that the cover body 100 is covered on the pot body 600, the abutting structure 312 abuts against the pot teeth 610 of the pot body 600 and drives the moving member 310 to slide, meanwhile, the limiting structure 311 can control the limiting column 431 to move so as to enable the movable plate 430 to be located at the first position to release the pressure limiting valve 200, therefore, the pressure limiting valve 200 can move downwards under the action of gravity to reset and is switched from an exhaust state to a closed state, the pressure limiting valve 200 is reset and closed through the action of covering the cover body 100 on the pot body 600 and the linkage control of the resetting assembly 300, the control of the pressure limiting valve 200 is simplified, and the user experience is better.

After the cover body 100 is completely covered on the pot body 600, the abutting structure 312 leaves the pot teeth 610 of the pot body 600 and drives the moving member 310 to slide, and the limiting structure 311 leaves the limiting column 431 to release the limitation on the movable plate 430.

In this embodiment, the pressure limiting valve 200 is slidably connected to the cover 100, the pressure limiting valve 200 is driven to move upward to switch from the closed state to the exhaust state, and in the free state, the pressure limiting valve 200 moves downward under the action of gravity to switch from the exhaust state to the closed state.

In an embodiment, with continued reference to fig. 2, fig. 3 and fig. 8, the restoring assembly 300 further includes a first elastic member 320, the first elastic member 320 elastically connects the moving member 310 and the cover 100, after the cover 100 is completely covered on the pot body 600, the first elastic member 320 can push the moving member 310 to slide, and the limiting structure 311 moves away from the limiting column 431 to release the movable plate 430. The first elastic member 320 provides a driving force for the moving member 310 to move in a resetting manner, so that the action control influence of the resetting assembly 300 on the pressure limiting valve 200 and the control assembly 400 can be reduced.

It can be understood that, in the process of closing the cover body 100 on the pot body 600, the abutting structure 312 abuts against the pot teeth 610 of the pot body 600 and drives the moving member 310 to slide, meanwhile, the limiting structure 311 can control the limiting column 431 to move, so as to position the movable plate 430 at the first position, at this time, the first elastic member 320 elastically deforms, after the cover body 100 completely closes the cover body 600 on the pot body 600, the first elastic member 320 elastically resets to drive the moving member 310 to slide, the abutting structure 312 leaves the pot teeth 610 of the pot body 600 and drives the moving member 310 to slide, and the limiting structure 311 moves away from the limiting column 431 to release the movable plate 430.

Further, referring to fig. 6, the moving member 310 further has an installation post 313, the cover 100 is further provided with an installation opening 110 for inserting the installation post 313, and the first elastic member 320 is sleeved on the installation post 313 and is arranged between the moving member 310 and the cover 100 to implement the installation of the first elastic member 320. Specifically, the first elastic member 320 is a spring.

Preferably, limit structure 311 is hook-shaped, and spacing post 431 is the column, and hook-shaped limit structure 311 does benefit to the spacing cooperation with spacing post 431, and butt structure 312 is the column to make the main part setting of the outstanding moving member 310 of butt structure 312, more do benefit to the butt cooperation of butt structure 312 and pot tooth 610.

Specifically, the pressure-limiting valve control device of the pressure cooker further comprises a fixing member 330, the cover body 100 is provided with a fixing hole 120, the moving member 310 is provided with a sliding groove 314, and the fixing member 330 penetrates through the sliding groove 314 and is connected with the hole wall of the fixing hole 120, so as to realize the sliding connection of the moving member 310 on the cover body 100.

This mounting 330 can be float or stop the valve rod, and this mounting 330 not only can be used to install moving member 310, still can be used to prevent uncapping under the high-pressure state, therefore can reduce extra accessories, improves original float safety structure, saves the cost.

In an embodiment, with continued reference to fig. 1 to 6, 13 and 14, the control assembly 400 further includes a control button 420, the movable plate 430 is disposed on an inner sidewall of the cover 100, the control button 420 is disposed on an outer sidewall of the cover 100, the cover 100 is provided with a through channel 130 communicating the outer sidewall of the cover 100 and the inner sidewall of the cover 100, and the control button 420 is connected to the movable plate 430 through the through channel 130. The connection between the control button 420 and the movable plate 430 is realized through the arrangement of the through channel 130, so that a user can control the movement of the movable plate 430 positioned at the inner side of the pressure cooker through the control button 420 at the outer side of the pressure cooker, and further realize related control instructions through the movement of the movable plate 430.

In the present embodiment, the transmission connection between the control knob 420 and the movable plate 430 can be achieved through various embodiments.

In an embodiment, referring to fig. 1 to 6, 10 and 11, a groove 140 is formed on an outer side wall of the cover 100, the control button 420 is slidably disposed in the groove 140, and the control button 420 slides in the groove 140 to drive the movable plate 430 to move between the first position and the second position, so that the pressure limiting valve 200 is switched between the closed state and the exhaust state.

Specifically, the diapire of recess 140 is linked together with through passage 130, and the lateral surface equipartition of control button 420 has protruding granule, and the outside of control button 420 still is equipped with strip arch, and this strip arch does benefit to user's promotion and controls, and when recess 140 was the arc wall, control button 420's lateral wall had the arcwall face 422 with recess 140's inside wall matched with.

In another embodiment, referring to fig. 13 to 16, a groove 140 is formed on an outer side wall of the cover 100, the control button 420 is disposed in the groove 140, and the control button 420 rotates in the groove 140, and can drive the movable plate 430 to move between the first position and the second position, so that the pressure limiting valve 200 is switched between the closed state and the exhaust state.

For example, the control knob 420 may be rotated 90 degrees clockwise to drive the movable plate 430 to rotate from the first position to the second position, and the control knob 420 may also be rotated 90 degrees counterclockwise to drive the movable plate 430 to rotate from the second position to the first position.

In this embodiment, the exhaust control of the pressure limiting valve 200 may be achieved by implementing the transmission connection between the movable plate 430 and the transmission member 410 through various embodiments.

In one embodiment, referring to fig. 1 to 12, the transmission member 410 includes a first end 411 and a second end 412 disposed opposite to each other, and a movable end 413 located between the first end 411 and the second end 412, the movable end 413 is movably connected to the cover 100, the first end 411 is rotatably connected to the movable plate 430, the second end 412 has an inclined surface 414, and during the process of moving the movable plate 430 from the first position to the second position, the second end 412 of the transmission member 410 can be driven to move close to the pressure limiting valve 200 to jack up the pressure limiting valve 200 through the inclined surface 414, so that the pressure limiting valve 200 enters the exhaust state from the closed state. Specifically, the inclined surface 414 is inclined relative to the horizontal position, and the first end 411 and the movable end 413 are both provided with round holes rotatably connected to the outside.

Through the arrangement of the inclined surface 414, the horizontal displacement of the transmission member 410 is changed into the vertical displacement of the pressure limiting valve 200, so as to push the pressure limiting valve 200 to move upwards for exhausting and releasing pressure.

Further, the movable plate 430 is square, the movable plate 430 is provided with a connecting column 432, the connecting column 432 is provided with a connecting hole 4321, the pressure-limiting valve control device for the pressure cooker further comprises a connecting piece 510, the connecting piece 510 penetrates through the first end 411 of the transmission piece 410 and is fixedly connected with the hole wall of the connecting hole 4321, and the connecting column 432 and the limiting column 431 are arranged at intervals in the circumferential direction of the movable plate 430. Specifically, a first inserting hole 433 is disposed at a center position of the movable plate 430, and the control button 420 is disposed with a first inserting column 421 inserted and matched with the first inserting hole 433.

Preferably, the pressure-limiting valve control device of the pressure cooker further comprises an elastic pad 520, the elastic pad 520 is disposed between the pressure-limiting valve 200 and the second end 412 of the transmission member 410 and is adapted to elastically engage with the inclined surface 414. Specifically, the elastic pad 520 is a silicone gasket, and the elastic pad 520 is provided with an elastic channel 521 which is matched with the inclined surface 414.

In another embodiment, referring to fig. 13 to 19, the transmission member 410 includes a first end 411 and a second end 412 disposed opposite to each other, and a movable end 413 disposed between the first end 411 and the second end 412, the movable end 413 is movably connected to the cover 100, the movable plate 430 is provided with a protrusion structure 434, the protrusion structure 434 has a locking surface 4341 and a driving surface 4342, the driving surface 4342 is disposed obliquely relative to the locking surface 4341, and during the process of moving the movable plate 430 from the first position to the second position, the first end 411 of the transmission member 410 can be driven to slide from the driving surface 4342 to the locking surface 4341 to drive the second end 412 to jack up the pressure limiting valve 200, so that the pressure limiting valve 200 enters the exhaust state from the closed state. Specifically, the driving surface 4342 is disposed obliquely relative to the horizontal position, and the movable end 413 is provided with a circular hole connected to rotate outwards.

Through the arrangement of the driving surface 4342, the horizontal displacement of the movable plate 430 is changed into the vertical displacement of the transmission member 410, so as to push the pressure limiting valve 200 to move upwards for exhausting and releasing pressure.

Further, the movable plate 430 is disc-shaped, and the protruding structures 434 and the limiting columns 431 are arranged at intervals in the circumferential direction of the movable plate 430. Specifically, a second inserting hole 435 is disposed at the center of the movable plate 430, and the control button 420 is disposed with a second inserting column inserted and matched with the second inserting hole 435.

Preferably, a stop surface 4343 is provided between the drive surface 4342 and the locking surface 4341, the stop surface 4343 being used to lock the first end 411 of the transmission element 410 on the locking surface 4341. Specifically, the first end 411 of the transmission member 410 has a circular arc protrusion 415, and the circular arc protrusion 415 is slidably connected with the driving surface 4342 and the locking surface 4341.

In this embodiment, the pressure-limiting valve control device of the pressure cooker further comprises a second elastic member 440, wherein the second elastic member 440 elastically connects the cover body 100 and the second end 412 of the transmission member 410 and is used for driving the second end 412 of the transmission member 410 to release the pressure-limiting valve 200. The driving force for the reset movement of the driving member 410 is provided by the second elastic member 440. After the cover body 100 is completely closed on the pot body 600, the abutting structure 312 leaves the pot teeth 610 of the pot body 600 and drives the moving member 310 to slide, the limiting structure 311 leaves the limiting column 431 to release the movable plate 430, at this time, the transmission member 410 is reset under the driving of the second elastic member 440 to release the pressure limiting valve 200, the pressure limiting valve 200 moves down and resets under the action of gravity, and the pressure limiting valve resets from the exhaust state to the closed state.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. A pressure limiting valve control device for a pressure cooker, comprising: the pressure limiting valve, the reset assembly and the control assembly are arranged on the cover body, the control assembly comprises a transmission part and a movable plate, the first end and the second end of the transmission part are respectively arranged on the movable plate and the pressure limiting valve, and when the movable plate is at the first position or the second position, the movable plate controls the transmission part to limit the pressure limiting valve to be in a closed state or an exhaust state;

the movable plate is provided with a limiting column, the reset assembly comprises a moving member, and an abutting structure and a limiting structure which are arranged on the moving member, and the moving member is connected with the cover body in a sliding manner;

in the process that the cover body is covered on the pot body, the abutting structure abuts against the pot teeth of the pot body and drives the moving piece to slide, and meanwhile, the limiting structure can control the limiting column to move so as to enable the movable plate to be located at the first position.

2. The control device for the pressure limiting valve of the pressure cooker as claimed in claim 1, wherein the reset assembly further comprises a first elastic member, the moving member further comprises a mounting post, the cover body is further provided with a mounting opening for inserting the mounting post, and the first elastic member is sleeved on the mounting post and arranged between the moving member and the cover body;

the pressure cooker pressure limiting valve control device also comprises a fixing piece, wherein a fixing hole is formed in the cover body, a sliding groove is formed in the moving piece, and the fixing piece penetrates through the sliding groove and is connected with the hole wall of the fixing hole.

3. The control device for the pressure limiting valve of the pressure cooker as claimed in claim 1, wherein after the cover body is completely covered on the cooker body, the abutting structure leaves the cooker teeth of the cooker body and drives the moving member to slide, and the limiting structure is far away from the limiting column.

4. The control device for the pressure limiting valve of a pressure cooker as defined in claim 1, wherein the limiting structure is hook-shaped, and the limiting post is columnar.

5. The control device for the pressure limiting valve of a pressure cooker as claimed in claim 1, wherein the control assembly further comprises a control button, the movable plate is disposed on the inner sidewall of the cover body, the control button is disposed on the outer sidewall of the cover body, the cover body is provided with a through channel for communicating the outer sidewall of the cover body and the inner sidewall of the cover body, and the control button is connected with the movable plate through the through channel.

6. The control device for the pressure limiting valve of a pressure cooker as defined in claim 5, wherein the outer side wall of the cover body is provided with a groove, the control knob is disposed in the groove, and the control knob slides or rotates in the groove to drive the movable plate to move between the first position and the second position.

7. The control device for the pressure limiting valve of a pressure cooker as claimed in claim 1, wherein the transmission member comprises the first end and the second end which are oppositely disposed, and a movable end located between the first end and the second end, the movable end is movably connected to the cover, the first end is rotatably connected to the movable plate, the second end has an inclined surface, and the movable plate can drive the second end of the transmission member to move close to the pressure limiting valve during moving from the first position to the second position, so as to jack up the pressure limiting valve via the inclined surface, so as to enable the pressure limiting valve to enter the exhaust state from the closed state.

8. The control device for the pressure limiting valve of a pressure cooker as claimed in claim 1, wherein the driving member comprises the first end and the second end disposed opposite to each other, and a movable end disposed between the first end and the second end, the movable end is movably connected to the cover, the movable plate is provided with a protrusion structure, the protrusion structure has a locking surface and a driving surface, the driving surface is disposed obliquely with respect to the locking surface, and during the movement of the movable plate from the first position to the second position, the first end of the driving member can be driven to slide from the driving surface to the locking surface to drive the second end to jack up the pressure limiting valve, so that the pressure limiting valve enters the exhaust state from the closed state.

9. Pressure cooker pressure limiting valve control according to claim 8, characterized in that a stop surface is provided between the drive surface and the locking surface for holding the first end of the transmission element on the locking surface.

10. The pressure cooker pressure limiting valve control arrangement as claimed in claim 8, characterized in that the pressure cooker pressure limiting valve control arrangement further comprises a second elastic member elastically connecting the cover body and the second end of the transmission member.

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