CN219962527U - Pressure limiting valve assembly and cooking utensil - Google Patents

Abstract

The utility model discloses a pressure limiting valve assembly and a cooking utensil, comprising a pressure limiting valve and an exhaust pipe, wherein the pressure limiting valve comprises a valve body and a valve core; the exhaust pipe is provided with an exhaust channel, and one end of the exhaust pipe is matched with the valve core; the anti-blocking device also comprises a fixed cover, a locking piece and an anti-blocking cover, wherein the fixed cover is provided with a cavity with a downward opening, a central hole is formed in the top surface of the cavity, and the lower end of the exhaust pipe penetrates through the central hole and stretches into the cavity; the opening end of the fixed cover is provided with an outward turned annular curled edge; the locking piece is positioned in the cavity of the fixed cover and used for locking the exhaust pipe; the anti-blocking cover is arranged on the outer side of the fixed cover in a surrounding manner, and an air inlet hole is formed in the anti-blocking cover; the anti-blocking cover is also provided with at least one elastic clamping piece which is connected with the annular curled edge clamping buckle of the fixed cover. The anti-blocking cover can avoid the deformation of the fixed chuck in the assembly process, and has the characteristics of long service life, and convenience in installation and disassembly.

Description

Pressure limiting valve assembly and cooking utensil

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to a pressure limiting valve assembly and a cooking appliance.

Background

Cooking appliances such as a steamer, a pressure cooker, and the like are used more and more frequently as a kitchen appliance for cooking. The existing pressure cooker mostly adopts a pressure limiting valve, when in use, the pressure limiting valve is matched with an exhaust port of the pressure cooker, the pressure limiting valve is used for limiting the exhaust quantity to maintain the required pressure in the pressure cooker, and meanwhile, the pressure relief protection function is realized when the pressure in the cooker is overlarge; in order to prevent the action pressure of the pressure limiting valve from losing efficacy, an anti-blocking nut or an anti-blocking cover is generally arranged at the lower end of the exhaust pipe. Avoid being blocked by food and making the action of the pressure limiting valve invalid.

Referring to fig. 1 to 4, a pressure limiting valve is disclosed in the prior art, which comprises a pressure limiting valve 10a, an exhaust pipe 20a, a sealing ring 60a, a fixed chuck 30a with three or six elastic arms, a locking nut 40a and an anti-blocking cover 50a, wherein the exhaust pipe is inserted into an inner hole of the pressure limiting valve, the exhaust pipe is installed on a pot cover, the lower end of the exhaust pipe is provided with threads, the fixed chuck is installed on the pot cover through a central hole, the exhaust pipe is locked through the nut, and then the anti-blocking cover is installed on the fixed chuck; when a consumer inserts, extracts and washes or installs the anti-blocking cover, the elastic arm of the fixed chuck is easy to deform in the assembly process, so that the defects of short service life and inconvenient installation and disassembly of the anti-blocking cover exist.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a pressure limiting valve assembly and a cooking utensil, which can avoid the deformation of a fixed chuck in the assembly process and have the characteristics of long service life, and convenience in installation and disassembly of an anti-blocking cover.

The utility model adopts the following technical scheme:

the first aspect of the utility model provides a pressure limiting valve assembly, which comprises a pressure limiting valve and an exhaust pipe, wherein the pressure limiting valve comprises a valve body and a valve core, the valve body is provided with an exhaust part, and the valve core is connected with the valve body and is positioned in the exhaust part; the exhaust pipe is provided with an exhaust channel, and one end of the exhaust pipe is matched with the valve core; characterized by further comprising:

the fixed cover is provided with a cavity with a downward opening, a central hole is formed in the top surface of the cavity, and the lower end of the exhaust pipe penetrates through the central hole and stretches into the cavity; an outward turned annular curled edge or an outward turned annular flanging is formed at the opening end of the fixed cover;

the locking piece is positioned in the cavity of the fixed cover and used for locking the exhaust pipe;

the anti-blocking cover is arranged on the outer side of the fixed cover in a surrounding mode, and an air inlet hole is formed in the anti-blocking cover; the anti-blocking cover is also provided with at least one elastic clamping piece, and the elastic clamping piece is connected with the annular curled edge of the fixed cover in a clamping manner.

In the mounting process of the pressure limiting valve assembly, one end of the exhaust pipe is inserted into an inner hole of the pressure limiting valve, the other end of the exhaust pipe penetrates through the pot cover, the lower end of the exhaust pipe penetrates through a central hole of a fixed cover positioned on the lower surface of the pot cover to extend into a cavity, the exhaust pipe is fixed on the pot cover through a locking piece, and then the anti-blocking cover is arranged at an inlet of the exhaust pipe and surrounds the outer side of the fixed cover, so that an elastic clamping piece is in clamping connection with an annular curled edge or an annular curled edge of the fixed cover; because the annular curled edge or the annular flanging of the fixed cover is high in structural strength, the annular curled edge or the annular flanging of the fixed cover and the elastic clamping piece of the fixed cover are not easy to deform in the assembly process, so that the condition that the fixed chuck in the related art deforms in the assembly process can be avoided, and the anti-blocking cover has the characteristics of being long in service life and convenient to install and detach.

In a first aspect of the present utility model, as an optional embodiment, the anti-blocking cover includes a bottom wall and a side wall; the air inlet hole comprises a first air inlet hole formed on the bottom wall; and/or the air inlet hole comprises a second air inlet hole formed on the side wall. So, when the culinary art, the soup roll of lid below, prevent that diapire and lateral wall of jam-proof cover can block and easily block up food, like laver or beans, and steam gets into in preventing stifled cover from first inlet port and/or second inlet port, and after the first exhaust hole on the diapire was blocked by food, steam can also get into in preventing stifled cover from the second exhaust hole on the lateral wall, avoids preventing to prevent that stifled cover from being taken place by the condition of jam.

In a first aspect of the present utility model, as an optional embodiment, the elastic buckle includes a spring structure and a protruding portion; the elastic sheet structure is formed by punching a concave-shaped notch on the side wall of the anti-blocking cover, so that only one side of the elastic sheet structure is connected with the side wall of the anti-blocking cover; the protruding portion is formed on the inner wall of the elastic sheet structure. Because the shell fragment structure and the lateral wall that prevents stifled cover are integrated into an organic whole structure and only have one side to be connected with the lateral wall that prevents stifled cover, therefore it has higher structural strength, can guarantee that the shell fragment structure has good elasticity. The bulge and the annular curled edge are connected through the buckle to limit the bulge and the annular curled edge to generate relative displacement, so that the stability of the structure is ensured.

In the first aspect of the present utility model, as an optional embodiment, the number of the elastic fastening members is two or more, and they are distributed at equal intervals along the sidewall of the anti-blocking cover. So, can guarantee that the dismouting between elasticity fastener and the annular turn-up is more smooth and easy, and connection stability is better.

In a first aspect of the present utility model, as an optional embodiment, a limit mounting portion is formed at the other end of the exhaust pipe, a threaded portion is formed at the lower end of the limit mounting portion, the threaded portion is located in the cavity, and the locking member cooperates with the limit mounting portion to fix the exhaust pipe on the pot cover. Thus, the limit mounting part positions the valve body after being mounted so as not to deviate vertically.

In a first aspect of the present utility model, as an alternative embodiment, the locking member is a circular flange extending vertically downward along a periphery of the central hole of the fixing cover, and the circular flange has a first threaded hole, and the first threaded hole is in threaded connection with the threaded portion. Therefore, the annular flanging and the fixed cover are of an integrated structure, and the annular flanging is locked or separated from the threaded part of the exhaust pipe through rotating the fixed seat, so that the disassembly and assembly are more convenient.

In a first aspect of the present utility model, as an optional embodiment, the locking member is an anti-blocking nut, one end of the anti-blocking nut is formed with a second threaded hole, an end face of the other end of the anti-blocking nut is provided with a cross-shaped groove, and a through hole is further formed in the middle of the anti-blocking nut; the second threaded hole of the anti-blocking nut is in threaded connection with the threaded portion, one end of the through hole is communicated with the inlet of the exhaust pipe, and the other end of the through hole is communicated with the cross-shaped groove. Therefore, when part of soup base enters the anti-blocking cover, the end face, with the cross groove, of the anti-blocking nut is used for secondarily blocking the part of soup base, and steam can enter the inlet of the exhaust pipe through the cross groove and the through hole, so that the dual anti-blocking function is realized.

In a first aspect of the present utility model, as an optional embodiment, the limit mounting portion is further provided with a first sealing ring, so that sealing is achieved between the limit mounting portion and the upper surface of the pot cover. And/or a second sealing ring is arranged between the fixed cover and the pot cover, so that sealing is realized between the fixed cover and the lower surface of the pot cover.

In the first aspect of the present utility model, as an optional embodiment, the fixing cover is formed by enclosing a top wall and an annular side wall, and the top wall of the fixing cover is concave inwards, or a plurality of through holes which are uniformly distributed are formed in the annular side wall of the fixing cover. Therefore, the top wall of the fixed cover is inwards concave, so that the top wall of the fixed cover can press the second sealing ring.

A second aspect of the utility model provides a cooking appliance comprising a pressure limiting valve assembly according to the first aspect of the utility model.

Compared with the prior art, the utility model has the beneficial effects that: the pressure limiting valve assembly comprises a pressure limiting valve, an exhaust pipe, a fixed cover, a locking piece and an anti-blocking cover, wherein an outward-turned annular curled edge is formed at the opening end of the fixed cover, at least one elastic clamping piece is formed on the anti-blocking cover, and the elastic clamping piece is in clamping connection with the annular curled edge of the fixed cover. In the installation process, firstly, one end of an exhaust pipe is inserted into an inner hole of a pressure limiting valve, the other end of the exhaust pipe is arranged on a pot cover in a penetrating way, the lower end of the exhaust pipe extends into a cavity through a central hole of a fixed cover positioned on the lower surface of the pot cover, the exhaust pipe is fixed on the pot cover through a locking piece, and then an anti-blocking cover is arranged at an inlet of the exhaust pipe and is arranged on the outer side of the fixed cover in a surrounding way, so that an elastic clamping piece is in clamping connection with an annular curled edge or an annular curled edge of the fixed cover; because the compressive strength of the annular curled edge or the annular flanging of the fixed cover is high, the elastic clamping piece of the fixed cover and the elastic clamping piece are not easy to deform in the assembly process, the situation that parts such as the fixed chuck in the related art deform in the assembly process can be avoided, and meanwhile, the anti-blocking cover has the characteristics of long service life and convenience in installation and disassembly.

Drawings

FIG. 1 is a cross-sectional view of a prior art pressure limiting valve assembly;

FIG. 2 is an exploded view of a prior art pressure limiting valve assembly;

FIG. 3 is a perspective view of a prior art pressure limiting valve assembly with an anti-backup cover installed;

FIG. 4 is a perspective view of a prior art pressure limiting valve assembly without an anti-backup cap installed;

FIG. 5 is a cross-sectional view of a pressure limiting valve assembly of a first embodiment of the present utility model when installed;

FIG. 6 is a perspective view of a pressure limiting valve assembly according to a first embodiment of the present utility model;

FIG. 7 is an exploded view of a pressure limiting valve assembly according to a first embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a retaining cap according to a first embodiment of the present utility model;

fig. 9 is a perspective view of a fixed cover according to a first embodiment of the present utility model;

FIG. 10 is another perspective view of a retaining cap according to a first embodiment of the present utility model;

FIG. 11 is a cross-sectional view of an anti-blocking cover according to a first embodiment of the present utility model;

FIG. 12 is a perspective view of an anti-blocking cover according to a first embodiment of the present utility model;

FIG. 13 is another perspective view of an anti-blocking cover according to a first embodiment of the present utility model;

FIG. 14 is a cross-sectional view of a pressure limiting valve assembly of a second embodiment of the present utility model when installed;

FIG. 15 is a perspective view of a pressure limiting valve assembly according to a second embodiment of the present utility model;

FIG. 16 is an exploded view of a pressure limiting valve assembly according to a second embodiment of the present utility model;

FIG. 17 is a cross-sectional view of a retaining cap according to a second embodiment of the present utility model;

fig. 18 is a perspective view of a retaining cap according to a second embodiment of the present utility model;

fig. 19 is another perspective view of a fixed cover according to a second embodiment of the present utility model.

Fig. 5 to 19: 100. a pressure limiting valve assembly; 10. a pressure limiting valve; 11. a valve body; 111. an exhaust unit; 112. a stopper; 12. a valve core; 20. an exhaust pipe; 201. an exhaust passage; 21. a release stopping part; 22. a limit mounting part; 23. a threaded portion; 30. a fixed cover; 301. a top wall; 302. an annular sidewall; 31. a cavity; 32. a central bore; 33. an annular curled edge; 34. a through hole; 40. a locking member; 41. a circular flanging; 411. a first threaded hole; 42. an anti-blocking nut; 421. a second threaded hole; 422. a cross-shaped groove; 423. a through hole; 50. an anti-blocking cover; 501. a bottom wall; 502. a sidewall; 511. a first air inlet hole; 512. a second air inlet hole; 52. an elastic clip; 521. a spring plate structure; 522. a boss; 61. a first seal ring; 62. a second seal ring; 200. and (5) a pot cover.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments. Materials and equipment used in this example are commercially available, except as specifically noted. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

In the description of the present utility model, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or may be connected through an intermediary, or may be connected between two elements or may be an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Referring to fig. 5-13, a first embodiment provides a pressure limiting valve assembly 100, which includes a pressure limiting valve 10, an exhaust pipe 20, a fixed cover 30, a locking member 40 and an anti-blocking cover 50;

specifically, the pressure limiting valve 10 includes a valve body 11 and a valve spool 12, the valve body 11 having an exhaust portion 111, the valve spool 12 being connected to the valve body 11 and located within the exhaust portion 111;

specifically, the exhaust pipe 20 has an exhaust passage 201, and one end of the exhaust pipe 20 is fitted with the valve core 12; specifically, the fixed cover 30 has a cavity 31 with a downward opening, a central hole 32 is formed on the top surface of the cavity 31, and the lower end of the exhaust pipe 20 extends into the cavity 31 through the central hole 32; the open end of the stationary shroud 30 is formed with an everted annular bead 33; as an alternative, instead of an annular bead, an annular bead may also be used.

Specifically, the locking member 40 is located in the cavity 31 of the fixed cover 30, and the locking member 40 is used for locking the exhaust pipe 20;

specifically, the anti-blocking cover 50 is enclosed on the outer side of the fixed cover 30, and an air inlet hole is arranged on the anti-blocking cover 50; the anti-blocking cover 50 is further formed with at least one elastic snap member 52, and the elastic snap member 52 is snap-connected with the annular bead 33 of the fixed cover 30.

On the basis of the above structure, in the installation process, firstly, one end of the exhaust pipe 20 is inserted into the inner hole of the pressure limiting valve, the other end of the exhaust pipe 20 is arranged on the pot cover 200 in a penetrating way, the lower end of the exhaust pipe 20 extends into the cavity 31 through the central hole 32 of the fixed cover 30 positioned on the lower surface of the pot cover 200, then the exhaust pipe 20 is fixed on the pot cover 200 through the locking piece 40, and then the anti-blocking cover 50 is arranged at the inlet of the exhaust pipe 20 and is arranged around the outer side of the fixed cover 30, so that the elastic clamping piece 52 is in clamping connection with the annular curled edge 33 of the fixed cover 30; because the compressive strength of the annular curled edge 33 of the fixed cover 30 is high, the annular curled edge and the elastic clamping piece 52 of the fixed cover 30 are not easy to deform in the assembly process, so that the situation that parts such as a fixed chuck in the related art deform in the assembly process can be avoided, and the anti-blocking cover 50 has the characteristics of long service life and convenience in installation and disassembly.

In the preferred embodiment of the present utility model, the anti-blocking cover 50 includes a bottom wall 501, a side wall 502; the air intake holes include a first air intake hole 511 formed on the bottom wall 501; and/or the intake apertures include a second intake aperture 512 formed in the sidewall 502. So, when cooking, the soup below the cover body rolls, and the bottom wall 501 and the side wall 502 of the anti-blocking cover 50 can block the soup, steam enters the anti-blocking cover 50 from the first air inlet hole 511 and/or the second air inlet hole 512, and after the first air outlet hole on the bottom wall 501 is blocked by soup, the steam can also enter the anti-blocking cover 50 from the second air outlet hole on the side wall 502, so that the anti-blocking cover 50 is prevented from being blocked.

In the preferred embodiment of the present utility model, the elastic buckle 52 includes a spring structure 521 and a protrusion 522; the elastic piece structure 521 is formed by punching a concave-shaped notch on the side wall 502 of the anti-blocking cover 50, so that only one side of the elastic piece structure 521 is connected with the side wall 502 of the anti-blocking cover 50; the protruding portion 522 is formed on the inner wall of the spring plate structure 521. Because the elastic sheet structure 521 and the side wall 502 of the anti-blocking cover 50 are integrated and only one side is connected with the side wall 502 of the anti-blocking cover 50, the anti-blocking cover has higher structural strength, and can ensure that the elastic sheet structure 521 has good elasticity. The stability of the structure is ensured by the snap connection of the boss 522 with the annular bead 33 to limit the relative displacement of the two.

In a preferred embodiment of the present utility model, the number of the elastic clips 52 is two or more, and they are equally spaced along the sidewall 502 of the anti-blocking cover 50. In this way, the elastic buckle 52 and the annular curled edge 33 can be assembled and disassembled smoothly, and the connection stability is better. Preferably, the number of the elastic clamping pieces 52 is two or four, and the specific number can be correspondingly adjusted according to actual needs.

In the preferred embodiment of the present utility model, the other end of the exhaust pipe 20 is formed with a limit mounting portion 22, the lower end of the limit mounting portion 22 is formed with a screw portion 23, the screw portion 23 is located in the cavity 31, and the locking member 40 cooperates with the limit mounting portion 22 to fix the exhaust pipe 20 to the lid 200. In this way, the limit mount 22 positions the valve body 11 so as not to be vertically deviated after being mounted.

In the preferred embodiment of the present utility model, the locking member 40 is a circular flange 41 extending vertically downward along the periphery of the central hole 32 of the fixed cover 30, and the circular flange 41 has a first threaded hole 411, and the first threaded hole 411 is screwed with the threaded portion 23. In this way, the annular flange 41 and the fixed cover 30 are of an integral structure, and the annular flange 41 is locked or separated from the threaded portion 23 of the exhaust pipe 20 by rotating the fixed seat, so that the assembly and disassembly are more convenient.

In the preferred embodiment of the present utility model, the limit mount 22 is further provided with a first sealing ring 61, so that a seal is achieved between the limit mount 22 and the upper surface of the lid 200. And/or, a second sealing ring 62 is provided between the stationary cover 30 and the pot cover 200, so that sealing is achieved between the stationary cover 30 and the lower surface of the pot cover 200. Specifically, the first seal ring 61 and the second seal ring 62 may be made of rubber or silica gel.

In the preferred embodiment of the present utility model, the fixed cover 30 is formed by enclosing a top wall 301 and an annular side wall 302, and the top wall 301 of the fixed cover 30 is recessed inwards, or a plurality of evenly distributed through holes 34 are formed in the annular side wall 302 of the fixed cover 30. In this way, since the top wall 301 of the stationary cover 30 is recessed inward, the top wall 301 of the stationary cover 30 can press the second seal ring 62.

In the preferred embodiment of the present utility model, the exhaust portion 111 of the valve body 11 is further provided with a stopper 112; the exhaust pipe 20 is provided with a release stopping part 21, and when the pressure limiting valve is installed on the exhaust pipe 20, the release stopping part 21 is suitable for forming interference fit or zero clearance fit with the stop piece 112; after the pressure limiting valve is installed, the anti-falling part 21 is positioned between the valve core 12 and the stop piece 112, and the stop piece 112 is suitable for preventing the pressure limiting valve from falling out of the exhaust pipe 20 when the cover 200 is turned over or reversed, so that the pressure limiting valve cannot fall out when the cover 200 is opened and closed and cleaned in normal use, the pressure limiting valve is safer, and meanwhile, when a consumer inserts and pulls out the pressure limiting valve for cleaning or installs the pressure limiting valve, the stop piece 112 made of metal materials and nonmetal materials can be easily dismounted through an installation gap or elastic deformation.

In the preferred embodiment of the present utility model, the stop member 112 is made of plastic, which has a certain strength, is not easy to deform and break, and meanwhile, the soft material such as plastic has better elasticity, is easy to install, and can moderately increase the interference fit area to make the stop function more stable, and has moderate cost and simple process. The stop piece 112 is integrally formed on the valve body 11, so that the structure is simpler and the cost is lower.

As an alternative, the stopper 112 may be made of metal materials such as stainless steel, aluminum alloy, iron, etc., and the fitting size may be controlled to achieve the installation and stopping between the stopper 112 and the exhaust pipe 20, so that the stopper has a certain strength, is not easy to deform and break, and has moderate cost and simple process.

Alternatively, the stop member 112 may be silica gel, which further increases the interference fit area to make the stop effect more stable, and can be better elastically interference fit with the anti-release portion 21, so that the assembly is simpler.

As an alternative, the stop member 112 may also be detachably mounted on the valve body 11, so that the assembly and disassembly are more convenient.

In the preferred embodiment of the present utility model, the interference between the anti-falling portion 21 and the stop member 112 is 0-1.5mm, and the anti-falling portion is too small to generate a clearance, and is too large to be installed. When the two are in zero clearance fit, the pressure limiting valve is necessarily offset to a certain extent when the cover 200 is turned over or reversed, so that the zero clearance fit can achieve the anti-falling effect.

In the preferred embodiment of the present utility model, the anti-disengaging portion 21 is integrally formed on the exhaust pipe 20, so that the structure is simpler and the cost is lower.

In the preferred embodiment of the present utility model, the exhaust pipe 20 and the anti-disengaging portion 21 are made of metal, so that the exhaust pipe has a certain strength, is not easy to deform and break, and has moderate cost and simple process.

In the preferred embodiment of the present utility model, the anti-disengaging portion 21 is a continuous or discontinuous annular protrusion extending circumferentially along the outer wall of the exhaust pipe 20, so that the continuous annular protrusion has the characteristics of high strength, easy processing and difficult deformation, while the discontinuous annular protrusion can reduce the production cost on the premise of ensuring the strength, and the discontinuous structure is easy to install due to the reduced size area of the mating structure during installation.

Example two

The second embodiment is an improvement based on the first embodiment.

Referring to fig. 14-19, the difference between the second embodiment and the first embodiment is that the locking member 40 is an anti-blocking nut 42, one end of the anti-blocking nut 42 is formed with a second threaded hole 421, the end face of the other end of the anti-blocking nut is provided with a cross-shaped groove 422, and the middle of the anti-blocking nut 42 is further provided with a through hole 423; the second screw hole 421 of the blocking prevention nut 42 is screw-coupled to the screw part 23, and one end of the through hole 423 is communicated with the inlet of the exhaust pipe 20 and the other end thereof is communicated with the cross-shaped groove 422. Thus, when a part of soup material enters the anti-blocking cover 50, the end face with the cross groove of the anti-blocking nut 42 is used for secondarily blocking the part of soup material, and steam can enter the inlet of the exhaust pipe 20 through the cross groove 422 and the through hole 423, so that the dual anti-blocking function is realized.

Example III

Embodiment III is an improvement on the basis of embodiment I or embodiment II.

Referring to fig. 5 and 14, a third embodiment provides a cooking apparatus including a pressure limiting valve assembly 100 according to the first or second embodiments. The cooking utensil of the embodiment further comprises a pot body and a pot cover 200. The pot body is used for containing food to be cooked. The pot cover 200 is arranged on the pot body.

Although only certain features and embodiments of the utility model have been illustrated and described, many modifications and changes may occur to those skilled in the art without departing substantially from the scope and spirit of the utility model as defined in the appended claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.

The foregoing embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the scope of the embodiments of the present utility model, so that any insubstantial changes and substitutions made by those skilled in the art on the basis of the embodiments of the present utility model fall within the scope of the embodiments of the present utility model.

Claims (10)

1. A pressure limiting valve assembly comprising a pressure limiting valve and an exhaust pipe, the pressure limiting valve comprising a valve body and a valve core, the valve body having an exhaust portion, the valve core being connected to the valve body and located within the exhaust portion; the exhaust pipe is provided with an exhaust channel, and one end of the exhaust pipe is matched with the valve core; characterized by further comprising:

the fixed cover is provided with a cavity with a downward opening, a central hole is formed in the top surface of the cavity, and the lower end of the exhaust pipe penetrates through the central hole and stretches into the cavity; an outward turned annular curled edge or an outward turned annular flanging is formed at the opening end of the fixed cover;

the locking piece is positioned in the cavity of the fixed cover and used for locking the exhaust pipe;

the anti-blocking cover is arranged on the outer side of the fixed cover in a surrounding mode, and an air inlet hole is formed in the anti-blocking cover; the anti-blocking cover is also provided with at least one elastic clamping piece, and the elastic clamping piece is connected with the annular curled edge of the fixed cover in a clamping manner.

2. The pressure limiting valve assembly of claim 1, wherein the anti-blocking cover comprises a bottom wall, a side wall; the air inlet hole comprises a first air inlet hole formed on the bottom wall; and/or the air inlet hole comprises a second air inlet hole formed on the side wall.

3. The pressure limiting valve assembly of claim 2, wherein the resilient clip comprises a spring structure and a boss; the elastic sheet structure is formed by punching a concave-shaped notch on the side wall of the anti-blocking cover, so that only one side of the elastic sheet structure is connected with the side wall of the anti-blocking cover; the protruding portion is formed on the inner wall of the elastic sheet structure.

4. A pressure limiting valve assembly according to any one of claims 1-3 wherein the number of said resilient snap members is two or more and they are equally spaced along the side wall of said anti-clog.

5. The pressure limiting valve assembly of claim 1, wherein the other end of the exhaust pipe is formed with a limiting mounting portion, a threaded portion is formed at the lower end of the limiting mounting portion, the threaded portion is located in the cavity, and the locking member cooperates with the limiting mounting portion to fix the exhaust pipe on the pot cover.

6. The pressure limiting valve assembly of claim 5, wherein the locking member is a circular collar extending vertically downward along a periphery of the central aperture of the stationary housing, the circular collar having a first threaded bore threadedly coupled to the threaded portion.

7. The pressure limiting valve assembly according to claim 5, wherein the locking member is an anti-blocking nut, one end of the anti-blocking nut is provided with a second threaded hole, the end face of the other end of the anti-blocking nut is provided with a cross-shaped groove, and the middle part of the anti-blocking nut is also provided with a through hole; the second threaded hole of the anti-blocking nut is in threaded connection with the threaded portion, one end of the through hole is communicated with the inlet of the exhaust pipe, and the other end of the through hole is communicated with the cross-shaped groove.

8. The pressure limiting valve assembly of claim 5, wherein the limit mount portion is further provided with a first seal ring and/or a second seal ring is provided between the stationary cover and the pot cover.

9. The pressure limiting valve assembly according to claim 1, wherein the fixed cover is formed by enclosing a top wall and an annular side wall, the top wall of the fixed cover is recessed inwards, or a plurality of evenly distributed through holes are formed in the annular side wall of the fixed cover.

10. A cooking appliance comprising a pressure limiting valve assembly as claimed in any one of claims 1 to 9.