CN221242626U - Novel forced induction device and cooking device - Google Patents

Abstract

The novel pressure sensing device is assembled on the cooking device to detect the pressure in the cooking cavity of the cooking device, specifically, the novel pressure sensing device is provided with the sensing piece in the assembling part of the shell, the triggering piece is movably arranged in the shell, when the pressure in the cooking cavity is too high, steam can force the driving part on the driving component to drive the triggering piece to move in the direction close to the sensing piece until the triggering piece triggers the sensing piece, so that the heating component is powered off to stop working, and the situations of overripeness of food materials, or damage to a user and the like caused by the fact that the container sealing cover is broken due to the overlarge pressure are avoided.

Description

Novel forced induction device and cooking device

Technical Field

The utility model relates to the technical field of pressure sensing accessories, in particular to a novel pressure sensing device and a cooking device.

Background

The current cooking electrical apparatus (such as electric cooker, soybean milk machine, cooking machine, pressure cooker etc.) is usually all to holding the container that has edible material through heating element and is heated to cook edible material, in the heating process, can produce steam in the container, so that the pressure of container changes, does not set up the device that continues to monitor to the pressure in the container in the current cooking electrical apparatus, when heating temperature is too high, and when atmospheric pressure is too big (produce gas after the water in the container is boiled for example), if not in time shut down heating element, the pressure in the container is too big, makes the container closing cap collapse easily, causes safety problems such as user injury.

The utility model is researched and proposed for overcoming the defects of the prior art.

Disclosure of utility model

The technical problem that a device for monitoring the pressure in the container is not arranged in the cooking electric appliance in the prior art is solved.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a novel forced induction device, includes the casing, be equipped with the assembly department that is used for assembling the induction spare in the casing, still the activity is provided with a trigger piece in the casing, be equipped with a drive assembly on the casing, drive assembly includes interconnect's connecting portion and drive division, connecting portion can be connected with the casing, drive division can drive the trigger piece, so that the trigger piece triggers the induction spare.

According to the novel pressure sensing device, the shell is further provided with the guide channel, the guide channel is located between the assembly part and the driving part, and one end of the trigger piece extends into the guide channel.

The novel pressure sensing device is characterized in that the trigger piece comprises a trigger seat and a trigger rod arranged on the trigger seat, the free end of the trigger rod extends into the guide channel, and one end, far away from the trigger rod, of the trigger seat is in transmission connection with the driving assembly.

The novel pressure sensing device comprises the shell, the guide channel and the assembling part are both positioned in the connecting shell, the trigger seat is positioned in the assembling shell, and the connecting part is connected with the assembling shell.

The novel pressure sensing device is characterized in that the driving assembly is a soft sleeve, the connecting portion is sleeved on the outer side wall of the assembly shell, the end, away from the connection shell, of the assembly shell is provided with the avoidance opening, and the driving portion is abutted to the end, away from the trigger rod, of the trigger seat through the avoidance opening.

The novel pressure sensing device is characterized in that the driving part is further provided with a positioning assembly component for positioning and assembling the trigger seat.

The novel pressure sensing device is characterized in that the positioning assembly member comprises an annular positioning protrusion arranged on the driving part, the inner side wall of the annular positioning protrusion encloses to form a positioning clamping groove, the trigger seat is positioned in the positioning clamping groove, and the inner side wall of the annular positioning protrusion is close to or props against the outer side wall of the trigger seat.

The novel pressure sensing device is characterized in that the positioning assembly member comprises a plurality of positioning assembly protrusions arranged on the driving part, the trigger seat is provided with positioning grooves corresponding to the positioning assembly protrusions, and each positioning assembly protrusion is clamped into the corresponding positioning groove.

The novel pressure sensing device is characterized in that the outer side of the connecting shell is further sleeved with the fixing piece, a certain gap is formed between the fixing piece and the assembling shell, a clamping space is formed, and the fixing piece can pass through the clamping space, so that the assembling shell and the cooking device are assembled.

The utility model provides a cooking device, includes cooking casing, heating element and the novel forced induction device of any one of the above, be equipped with cooking chamber in the cooking casing, heating element can heat cooking intracavity food, novel forced induction device assembles in the cooking casing for detect the pressure in the cooking chamber.

The beneficial effects of the utility model are as follows:

The novel pressure sensing device is assembled on the cooking device to detect the pressure in the cooking cavity of the cooking device, specifically, the novel pressure sensing device is provided with the sensing piece in the assembling part of the shell, the triggering piece is movably arranged in the shell, when the pressure in the cooking cavity is too high, steam can force the driving part on the driving component to drive the triggering piece to move in the direction close to the sensing piece until the triggering piece triggers the sensing piece, so that the heating component is powered off to stop working, and the situations of overripeness of food materials, or damage to a user and the like caused by the fact that the container sealing cover is broken due to the overlarge pressure are avoided.

The utility model will be further described with reference to the drawings and detailed description.

Drawings

FIG. 1 is a schematic diagram of a novel pressure sensing device according to the present utility model;

FIG. 2 is a second schematic diagram of a novel pressure sensing device according to the present utility model;

FIG. 3 is a schematic top view of the novel pressure sensing device of the present utility model;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an exploded view of one of the novel pressure sensing devices (hidden sensing element) of the present utility model;

FIG. 6 is a second exploded view of the novel pressure sensing device (hidden sensing element) of the present utility model;

FIG. 7 is a schematic diagram of a novel pressure sensing device according to another embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of FIG. 7 taken along line B-B;

FIG. 9 is an exploded view of a novel pressure sensing device according to another embodiment of the present utility model;

FIG. 10 is a second exploded view of a novel pressure sensing device according to another embodiment of the present utility model;

FIG. 11 is one of the schematic sectional views of the cooking device of the present utility model;

FIG. 12 is a second schematic cross-sectional view of the cooking device of the present utility model;

Fig. 13 is a third schematic sectional view of the cooking device of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a novel pressure sensing device of the present embodiment includes a housing 1, an assembling portion 3 for assembling a sensing member 2 is provided in the housing 1, a triggering member 4 is further movably provided in the housing 1, a driving assembly 5 is provided on the housing 1, the driving assembly 5 includes a connecting portion 51 and a driving portion 52 that are connected with each other, the connecting portion 51 can be connected with the housing 1, and the driving portion 52 can drive the triggering member 4 so that the triggering member 4 triggers the sensing member 2;

the novel pressure sensing device is assembled on the cooking device to detect the pressure in the cooking cavity 71 of the cooking device, specifically, the sensing piece 2 is assembled in the assembling part 3 of the shell 1, the triggering piece 4 is movably arranged in the shell, when the pressure in the cooking cavity 71 is too high, steam can force the driving part 52 on the driving assembly 5, so that the driving part 52 drives the triggering piece 4 to move towards the direction close to the sensing piece 2 until the triggering piece 4 triggers the sensing piece 2, so that the heating assembly 8 is powered off to stop working, and the safety problems of food material overripening caused by overheat in the container or container sealing cover collapse caused by too high pressure, user injury and the like are avoided.

When the pressure is reduced, the force on the driving portion 52 is removed to move the triggering member 4 away from the sensing member 2, and the sensing member 2 is no longer triggered to allow the heating assembly 8 to be re-energized.

As shown in fig. 1 to 6, the housing 1 of the present embodiment is further provided with a guide channel 6, the guide channel 6 is located between the assembly portion 3 and the driving portion 52, one end of the trigger member 4 extends into the guide channel 6, and specifically, a part of the trigger member 4 is maintained in a state of being inserted into the guide channel 6;

Under the drive of the driving part 52, the trigger piece 4 can move in the guide channel 6, the guide channel 6 can guide the moving direction of the trigger piece 4, the condition that the trigger piece 4 is excessively shifted in the moving process is avoided, the trigger piece 4 can be ensured to correctly trigger the sensing piece 2, the design can improve the reliability and the performance of the pressure sensing device, and the power failure of the heating assembly is ensured to be timely triggered under proper conditions.

As shown in fig. 1 to 6, the trigger piece 4 of the present embodiment includes a trigger seat 41 and a trigger rod 42 disposed on the trigger seat 41, wherein a free end of the trigger rod 42 extends into the guide channel 6, that is, a part of the trigger rod 42 is maintained in a state of being inserted into the guide channel 6, and an end of the trigger seat 41 away from the trigger rod 42 is in transmission connection with the driving assembly 5;

Specifically, the driving part 52 can drive the trigger rod 42 to move in the guide channel 6 through the trigger seat 41, and trigger the sensing member 2 through the free end of the trigger rod 42, so that the accurate control and operation of the trigger member can be realized, the accuracy and stability of the triggering process are ensured, and the trigger member can move along a predetermined path in the guide channel 6, so that the sensing member 2 is triggered correctly, and the operation of the heating assembly is disconnected timely.

Preferably, the outer diameter of the trigger seat 41 of the present embodiment is larger than the outer diameter of the trigger rod 42, so that a larger driving area is provided between the driving portion 52 and the trigger seat 41, and by providing a larger driving area, the driving portion 52 can apply more force and flexibility, so as to ensure that the pressure of steam can force the driving portion 52 to correctly drive the trigger seat 41 to move in the housing 1.

At the same time, by making the outer diameter of trigger seat 41 larger, it can provide greater mechanical resistance and stability to pressure changes and potential stresses, which can help maintain performance and reliability of the device over extended periods of use.

Preferably, the outer diameter of the trigger seat 41 is larger than the inner diameter of the guide channel 6, when the trigger seat 41 moves up to the guide channel 6, the trigger seat 41 can be abutted against the end of the guide channel 6 far away from the sensing piece 2, so as to limit the trigger seat 41 to move in a direction approaching to the sensing piece 2, so as to limit the moving path of the trigger seat 41, and avoid the condition that the trigger rod 42 moves continuously to push against the sensing piece 2.

Preferably, the outer side wall of the triggering rod 42 is close to or propped against the inner side wall of the guiding channel 6; stable guiding and limiting of the trigger lever 42 in the guiding channel 6 can be achieved, and the design can reduce shaking and deviation of the trigger lever 42 in the moving process, and ensure the accuracy and reliability of the triggering process.

By the outer side wall of the trigger lever 42 being close to or against the inner side wall of the guide channel 6, a better fit and guiding is achieved, providing a tighter guiding effect.

As shown in fig. 1 to 6, the housing 1 of the present embodiment includes a fitting housing 11 and a connection housing 12, the guide passage 6 and the fitting portion are both located in the connection housing 12, the trigger seat 41 is located in the fitting housing 11, and the connection portion 51 is connected to the fitting housing 11;

Such a design divides the housing 1 into two parts, an assembly housing 11 and a connection housing 12, which contributes to the organization and arrangement of the different components and functions inside the housing, the assembly housing 11 serving as a receptacle for the trigger seat 41, providing a stable mounting position for the trigger seat, and the connection housing 12 carrying the guide channel 6 and the assembly components providing a uniform space for them.

By placing the guide channels 6 and the assembly parts in the connection housing 12, a centralized management and protection of them is achieved, while at the same time reducing the interference with the trigger block 41, which trigger block 41 is located within the assembly housing 11, separated from the other components, providing a separate working space.

Further, the connection portion 51 is connected to the assembly housing 11, and the assembly housing 11 provides an assembly space for the driving assembly 5 to be firmly assembled to the housing.

As shown in fig. 1 to 6, the driving assembly 5 of the present embodiment is a flexible sleeve, the connecting portion 51 is sleeved on the outer side wall of the assembly shell 11, an avoidance port 13 is disposed at one end of the assembly shell 11 away from the connection shell 12, and the driving portion 52 abuts against one end of the trigger seat 41 away from the trigger rod 42 through the avoidance port 13;

This design arrangement provides a clear layout and functional distribution allowing for efficient installation and operation of the drive components and trigger components, the design of the flexible sleeve drive assembly 5 may be flexible and flexible, helping to accommodate specific application requirements, and providing better trigger effect and protection;

Specifically, the connecting portion 51 is sleeved on the outer side wall of the assembly housing 11, so that stable and firm installation of the connecting component is facilitated, meanwhile, suitable support and guide are provided for movement of the driving component, the assembly housing 11 is provided with the avoidance opening 13, necessary space and avoidance are provided for movement of the driving component, the driving portion 52 is made to abut against the trigger seat 41, effective connection between the driving portion 52 and the trigger seat 41 is ensured, corresponding functions can be executed, cooperation between the driving portion and the assembly housing 11 and the connecting housing 12 can be realized through the arrangement, and effective triggering operation of the trigger rod 42 is ensured to be realized under driving.

Specifically, when the steam forces the driving part 52, the driving part 52 and the connection part between the driving part 52 and the connection part 51 are elastically deformed, and move towards the direction approaching the sensing element 2, and simultaneously force the trigger seat 41 to move towards the direction approaching the sensing element 2, so as to drive the trigger rod 42 to trigger the sensing element 2;

When the force applied to the driving part 52 is removed, the driving part 52 and the connection part between the driving part and the connection part 51 are elastically restored, and the trigger seat 41 is driven to return to the initial state.

As shown in fig. 1 to 6, the driving portion 52 of the present embodiment is further provided with a positioning and assembling member for positioning and assembling the trigger seat 41;

Such a design helps to ensure that trigger seat 41 is accurately positioned and mounted on drive member 52 to achieve proper interfacing and interaction therebetween. The positioning assembly member may be a specially shaped or structured piece designed to mate with a corresponding portion of the trigger seat 41.

By using positioning and assembly means, accurate positioning and fixing of the trigger seat 41 can be provided, thereby ensuring accuracy and reliability of the device during use, and the use of such positioning and assembly means can simplify handling and positional adjustment of the trigger seat during assembly.

As shown in fig. 1 to 6, the positioning assembly member of the present embodiment includes an annular positioning protrusion 53 disposed on the driving portion 52, wherein an inner sidewall of the annular positioning protrusion 53 encloses to form a positioning slot, the trigger seat 41 is located in the positioning slot, and an inner sidewall of the annular positioning protrusion 53 is close to or abuts against an outer sidewall of the trigger seat 41;

This design provides effective support and fixation for the positioning of the trigger seat, ensures the accuracy and stability of the trigger component in the driving process, and the inner side wall of the annular positioning protrusion 53 is close to or offset with the outer side wall of the trigger seat 41, so as to further enhance the tightness and stability of assembly, thereby ensuring the reliability in the use process.

The positioning clamping groove is arranged so that the trigger seat can be accurately embedded into the positioning clamping groove and can keep a relatively stable position. This way, it is helpful to avoid displacement or jolt during use, thereby ensuring that the device can perform the corresponding functions and operations stably.

Preferably, the inner side wall of the annular positioning protrusion 53 abuts against the outer side wall of the trigger seat 41 to form an interference fit; this mating arrangement ensures a tight contact and stable connection between the driving and triggering parts, providing a higher assembly accuracy and reliability.

The use of an interference fit may prevent loosening and wobble between components and provide better force transmission and motion response.

As shown in fig. 7 to 10, in other embodiments, the outer side surface of the driving portion 52 is provided with a groove 55 corresponding to the annular positioning protrusion 53, so as to play a role in marking, and facilitate better elastic deformation of the portion of the driving portion 52 located in the annular positioning protrusion 53, so as to improve the performance of driving the trigger seat 41.

As shown in fig. 7 to 10, in other embodiments, the positioning and assembling member further includes a plurality of positioning and assembling protrusions 54 provided on the driving portion 52, and the trigger seat 41 is provided with positioning grooves 43 corresponding to the respective positioning and assembling protrusions 54, and each positioning and assembling protrusion 54 is snapped into the corresponding positioning groove 43;

The advantage of this design is that by means of the plurality of positioning assembly projections 54 and corresponding positioning recesses 43, a multipoint positioning is achieved, which greatly increases the stability and accuracy of the assembly, each positioning assembly projection and corresponding positioning recess form an accurate alignment, ensuring an accurate position and a secure connection between the driving part and the trigger seat, and in addition, it also contributes to the dispersion of the load during assembly, reduces the wear and stress of the single point and prolongs the service life of the assembly.

Preferably, the positioning assembly protrusion 54 includes a central protrusion disposed at the central point of the driving portion 52, and a plurality of annular positioning protrusions concentrically disposed, and the positioning grooves 43 are in one-to-one correspondence with the protrusions, so that a more accurate positioning and a more stable connection effect can be achieved by this design.

Further, the design of the center bulge is beneficial to concentrating the attention and the pressure at one center point, so that the deviation and the error in the assembly process are reduced, meanwhile, the plurality of concentrically arranged annular positioning bulges provide multi-point support and positioning, the stability and the precision of assembly are effectively enhanced, the load of the assembly is more uniformly distributed by dispersing the force and the pressure to a plurality of points, the abrasion and the damage of parts are reduced, and the service life is prolonged.

The firm connection between the driving part 52 and the trigger seat 41 is ensured by the action of the plurality of positioning fitting projections and the annular positioning projections 53.

As shown in fig. 1 to 6, a fixing piece 9 is further sleeved on the outer side of the connecting shell 12 in the embodiment, a certain gap is formed between the fixing piece 9 and the assembling shell 11, so that a clamping space is formed, and the fixing piece 9 can pass through the clamping space, so that the assembling shell 11 and the cooking device can be assembled;

This design provides flexibility and convenience for assembly, and through the design of the clamping space, the fixing member 9 can move or rotate on the connecting shell 12 to a certain extent, so that the assembly shell 11 can be assembled at a required position, and a proper position and fixation are maintained after installation, and the design makes the assembly process simpler and more efficient, and simultaneously improves the accuracy and stability of assembly.

The presence of the clamping space also helps to absorb and accommodate some dimensional errors or minor variations in the assembly process that may occur, thereby improving the compatibility and reliability of the assembly, and the design also helps to simplify adjustment and calibration during assembly, reducing complexity and time consumption during assembly.

During assembly, the connecting shell 12 is assembled in the side wall or the top cover of the cooking shell 7, and then is locked on the side wall or the top cover of the cooking shell 7 through the fixing piece 9, and at the moment, the bottom of the fixing piece 9 and the top of the assembling shell 11 are respectively propped against the side wall or the top cover side wall of the cooking shell 7 so as to realize assembly.

Preferably, the fixing member 9 in this embodiment is a nut, threads are disposed on the outer side of the connection shell 12, and the nut is in threaded connection with the connection shell 12 through threads; in some embodiments, the fixing member 9 may also be a clamping member or other parts.

Preferably, the inner diameter of the assembly part 3 of the embodiment is smaller than the inner diameter of the guide channel 6, that is, the inner diameter of the assembly part 3 is smaller than the outer diameter of the trigger rod 42, and the design is adopted so that the highest upward moving path of the trigger rod 42 is the bottom of the assembly part 3, and the top of the trigger rod 42 is propped against the bottom of the assembly part 3 at the moment and cannot move upward, so that the condition that the trigger rod 42 is propped against the bad sensing piece 2 is avoided;

By such a design, it is ensured that the trigger lever 42 will not exceed the range of the fitting portion 3 during the movement, thereby avoiding the risk of damage to the sensing member 2, and the trigger lever 42 is limited by the fitting portion 3 during the upward movement, thereby achieving the safety and protection purposes of the design.

Preferably, be equipped with a plurality of spacing protruding 31 on the inside wall of assembly portion 3 to make the surface of inside wall form the concave-convex surface, be convenient for to the location of sensing piece 2, the design of spacing protruding 31 helps guaranteeing that sensing piece 2 is stable and accurate in the position of assembly portion 3, when sensing piece 2 is placed in assembly portion 3, spacing protruding 31 can mutually support with recess or the protruding of sensing piece 2, forms fixed and stable location, and such design can prevent effectively that sensing piece 2 from misplacing or becoming flexible in the assembly process, has improved the precision and the reliability of assembly.

The formation of the uneven surface can also increase the friction force and the surface contact area, thereby further improving the friction resistance and the connection stability between the sensing piece 2 and the assembling portion 3, further enhancing the positioning effect by increasing the number and the distribution of the uneven surface, and improving the positioning accuracy of the sensing piece 2.

Preferably, the sensing piece 2 is connected with the assembling portion 3 by means of glue filling and the like, the gap between the assembling portion 3 and the sensing piece 2 is filled with the adhesive to form connection, the contact area can be increased due to the presence of the concave-convex surface, more surface roughness is provided, the adhesive force between the adhesive and the assembling portion 3 and the sensing piece 2 can be increased, the sealing performance and the fixing performance of the adhesive can be improved due to the structural form of the concave-convex surface, and accordingly the reliability and the stability of connection are improved.

In the glue filling process, the concave-convex surface can also play a role in positioning, so that the induction piece 2 can be accurately placed at the position of the assembly part 3. The design of the concavo-convex surface can provide a fixed alignment manner so that the sensing element 2 can be accurately aligned and positioned on the fitting portion 3, thereby ensuring the accuracy and reliability of connection.

In addition, the glue filling mode can also fill gaps and reduce problems such as vibration, noise, looseness and the like. The presence of the concave-convex surface can further improve the glue filling effect, increase the adhesion area and enhance the sealing performance and the shock resistance of connection.

Preferably, the sensing element 2 is a tact switch, and other different types of sensing elements 2 may be used.

As shown in fig. 11 to 13, a cooking device of the present embodiment includes a cooking shell 7, a heating component 8, and a novel pressure sensing device as described in any one of the above, a cooking cavity 71 is provided in the cooking shell 7, the heating component 8 can heat food in the cooking cavity 71, and the novel pressure sensing device is assembled in the cooking shell 7 and is used for detecting pressure in the cooking cavity 71;

Preferably, when the novel pressure sensing device is assembled on the side wall or the top cover of the cooking shell 7, under the condition that the pressure in the cooking cavity 71 is too high, steam can force the driving part 52 on the driving assembly 5, so that the driving part 52 drives the trigger piece 4 to move in the direction close to the sensing piece 2 until the trigger piece 4 triggers the sensing piece 2, so that the heating assembly 8 is powered off to stop working, thereby avoiding the situations of safety problems such as overheating of food materials in a container, or collapse of a container cover due to overlarge pressure, injury of a user and the like; the novel pressure sensing device has the advantages of simple structure and convenience in assembly.

Preferably, when the novel pressure sensing device is assembled at the bottom of the cooking shell 7, the liquid in the cooking cavity 71 will submerge the novel pressure sensing device, and the driving part 52 on the driving assembly 5 is pressed by the air pressure in the cooking cavity 71 and/or the pressure formed by the mixed liquid of the liquid and the air in the cooking process, so as to detect the pressure in the cooking cavity 71;

specifically, when the novel pressure sensing device is assembled at the bottom of the cooking shell 7, the distance between the novel pressure sensing device and a control element (such as a circuit board and the like) in the cooking shell 7 can be reduced, so that the sensing piece 2 on the novel pressure sensing device is electrically connected with the circuit board, such as welding, wire connection, terminal plugging and the like;

Specifically, since the driving assembly 5 is a flexible sleeve, and the connecting portion 51 is sleeved on the outer side wall of the assembly shell 11, when the assembly is performed on the bottom of the cooking shell 7, the portion of the connecting portion 51 can also function as a sealing ring, and tightly abuts against the bottom of the cooking shell 7, so that the sealing performance of the cooking shell 7 is ensured.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. A novel pressure sensing device, characterized in that: including casing (1), be equipped with in casing (1) and be used for assembling assembly portion (3) of sensing piece (2), still the activity is provided with a trigger piece (4) in casing (1), be equipped with a drive assembly (5) on casing (1), drive assembly (5) are including interconnect's connecting portion (51) and drive portion (52), connecting portion (51) can be connected with casing (1), drive portion (52) can drive trigger piece (4), so that trigger piece (4) triggers sensing piece (2).

2. A novel pressure sensing apparatus as defined in claim 1, wherein: the shell (1) is further provided with a guide channel (6), the guide channel (6) is located between the assembly part (3) and the driving part (52), and one end of the trigger piece (4) extends into the guide channel (6).

3. A novel pressure sensing apparatus as defined in claim 2, wherein: the trigger piece (4) comprises a trigger seat (41) and a trigger rod (42) arranged on the trigger seat (41), the free end of the trigger rod (42) extends into the guide channel (6), and one end, far away from the trigger rod (42), of the trigger seat (41) is in transmission connection with the driving assembly (5).

4. A novel pressure sensing apparatus as defined in claim 3, wherein: the shell (1) comprises an assembly shell (11) and a connection shell (12), the guide channel (6) and the assembly part are both positioned in the connection shell (12), the trigger seat (41) is positioned in the assembly shell (11), and the connection part (51) is connected with the assembly shell (11).

5. The novel pressure sensing apparatus of claim 4, wherein: the driving assembly (5) is a soft sleeve, the connecting portion (51) is sleeved on the outer side wall of the assembly shell (11), an avoidance opening (13) is formed in one end, far away from the connection shell (12), of the assembly shell (11), and the driving portion (52) is abutted to one end, far away from the trigger rod (42), of the trigger seat (41) through the avoidance opening (13).

6. A novel pressure sensing apparatus as defined in claim 3, wherein: the driving part (52) is also provided with a positioning assembly component for positioning and assembling the trigger seat (41).

7. The novel pressure sensing apparatus of claim 6, wherein: the positioning assembly member comprises an annular positioning protrusion (53) arranged on the driving part (52), a positioning clamping groove is formed by encircling the inner side wall of the annular positioning protrusion (53), the trigger seat (41) is positioned in the positioning clamping groove, and the inner side wall of the annular positioning protrusion (53) is close to or props against the outer side wall of the trigger seat (41).

8. The novel pressure sensing apparatus of claim 6, wherein: the positioning assembly member comprises a plurality of positioning assembly protrusions (54) arranged on the driving part (52), positioning grooves (43) corresponding to the positioning assembly protrusions (54) are formed in the trigger seat (41), and each positioning assembly protrusion (54) is clamped into the corresponding positioning groove (43).

9. The novel pressure sensing apparatus of claim 4, wherein: the outside of connection shell (12) still overlaps and is equipped with mounting (9), have certain clearance between mounting (9) and assembly shell (11), form a centre gripping space, mounting (9) can pass through this centre gripping space to make assembly shell (11) and cooking device realize the assembly.

10. A material reason device, its characterized in that: including cooking casing (7), heating element (8) and novel pressure sensing device according to any one of claims 1 to 9, be equipped with cooking chamber (71) in cooking casing (7), heating element (8) can heat the food material in cooking chamber (71), novel pressure sensing device assembles in cooking casing (7) for detect the pressure in cooking chamber (71).