CN219594374U

CN219594374U - Exhaust pipe, pressure limiting valve, pot cover assembly and pressure cooker

Info

Publication number: CN219594374U
Application number: CN202321171583.5U
Authority: CN
Inventors: 李一峰; 杨伟军; 陈明
Original assignee: Foshan Bear Kitchen Electric Appliance Co Ltd
Current assignee: Foshan Bear Kitchen Electric Appliance Co Ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-08-29
Anticipated expiration: 2033-05-15

Abstract

The utility model provides an exhaust pipe, a pressure limiting valve, a pot cover assembly and a pressure cooker, and relates to the technical field of pressure cookers. When the exhaust pipe is installed, the protruding shaft at one end of the exhaust pipe base can penetrate into the installation hole from the lower side of the pot cover body, then the part, extending out of the upper side of the installation hole, of the protruding shaft can be riveted downwards into the first boss by using the riveting tool, and then the installation and fixation of the exhaust pipe base and the pot cover body are completed, after that, the bottom end thread of the exhaust pipe body is connected into the threaded hole of the exhaust pipe base, and finally the installation and fixation of the whole exhaust pipe are completed, no additional parts are needed, and the assembly efficiency is higher.

Description

Exhaust pipe, pressure limiting valve, pot cover assembly and pressure cooker

Technical Field

The utility model relates to the technical field of pressure cookers, in particular to an exhaust pipe, a pressure limiting valve, a pot cover assembly and a pressure cooker.

Background

The pressure limiting valve is a pressure cooker accessory for adjusting the pressure in the cooker by opening or closing the exhaust of the pressure cooker. The pressure limiting valve generally comprises a valve body cover and an exhaust pipe, wherein the exhaust pipe is fixedly arranged on the pot cover and is communicated with the inner space of the pot body, the valve body cover is sleeved at the top of the exhaust pipe, and when the inner pressure of the pot body is greater than the set pressure, the valve body cover is jacked up, and gas can be exhausted from the exhaust pipe. However, at present, when the blast pipe of pressure limiting valve is installed, the blast pipe is by more spare part subassemblies, or the blast pipe needs to be installed through more extra parts, and the assembly is loaded down with trivial details, complicated, and assembly efficiency is lower.

Disclosure of Invention

The utility model aims to solve the problem of lower assembly efficiency of an exhaust pipe of a pressure limiting valve in the existing pressure cooker.

In order to solve the problems, the utility model provides an exhaust pipe, which comprises an exhaust pipe body and an exhaust pipe base, wherein one end of the exhaust pipe base is convexly provided with a convex shaft, the exhaust pipe base is provided with a threaded hole penetrating through the convex shaft, the end part of the convex shaft is used for penetrating through a mounting hole of a pot cover body and is riveted on the pot cover body to form a first boss, and the end part of the exhaust pipe body is used for being in threaded connection with the threaded hole.

Compared with the prior art, the exhaust pipe provided by the utility model has the following technical effects:

when specifically installing the blast pipe, can upwards penetrate the mounting hole with the protruding axle of blast pipe base one end from the downside of pot cover body earlier, then can be with the part of protruding axle stretching out the mounting hole upside down riveting first boss into with the riveting instrument, and then accomplish the installation fixedly of blast pipe base and pot cover body, afterwards, then can be with the bottom threaded connection of blast pipe body in the screw hole of blast pipe base, finally accomplish the installation fixedly of whole blast pipe, need not extra part such as screw, nut etc. simple structure, assembly efficiency is higher, wherein, the screw hole can be a through-hole, the gas in the pot body can be followed this through-hole and is got into in the blast pipe body.

Further, the threaded hole is a blind hole, one end of the threaded hole penetrates through to the end part of the protruding shaft, a cross groove is formed in one end, far away from the protruding shaft, of the exhaust pipe base, and the cross groove is communicated with the other end of the threaded hole.

Further, the exhaust pipe further comprises a first sealing ring, the first sealing ring is sleeved on the protruding shaft, and two axial sides of the first sealing ring are respectively used for being abutted to the pot cover body and the exhaust pipe base.

Further, a sealing ring groove is formed in the joint of the exhaust pipe base and the protruding shaft, and the first sealing ring is arranged in the sealing ring groove.

Further, the exhaust pipe further comprises a second sealing ring, a second boss is arranged on the side wall of the exhaust pipe body in a protruding mode in the radial direction, the second sealing ring is sleeved on the exhaust pipe body, one axial side of the second sealing ring is used for being abutted to the second boss, and the other axial side of the second sealing ring is used for being abutted to the pot cover body or the protruding shaft.

Further, the exhaust pipe body comprises an integrally formed small-diameter pipe and a large-diameter pipe, one end, far away from the large-diameter pipe, of the small-diameter pipe is used for being in threaded connection with the threaded hole, the side wall of the large-diameter pipe is in transitional connection with the side wall, far away from the small-diameter pipe, of the large-diameter pipe through a first conical wall, and the side wall of the large-diameter pipe is in transitional connection with the side wall of the small-diameter pipe through a second conical wall.

Further, the side wall of the exhaust pipe body is provided with at least one pair of plane walls parallel to each other.

The utility model also provides a pressure limiting valve, which comprises a valve body cover and the exhaust pipe, wherein the valve body cover is sleeved at one end of the exhaust pipe body, which is far away from the exhaust pipe base, and the valve body cover is used for moving relative to the exhaust pipe body so as to block or open the top end of the exhaust pipe body.

Because the technical improvement and the beneficial effects of the pressure limiting valve are the same as those of the exhaust pipe, the pressure limiting valve is not repeated.

The utility model also provides a pot cover assembly which comprises the pressure limiting valve.

Because the technical improvement and beneficial effects of the pot cover assembly are the same as those of the pressure limiting valve, the pot cover assembly is not repeated.

The utility model also provides a pressure cooker, which comprises the cooker cover assembly.

Because the technical improvement and beneficial effects of the pressure cooker are the same as those of the cooker cover assembly, the pressure cooker is not repeated.

Drawings

FIG. 1 is a schematic view of an exhaust pipe according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an exhaust pipe base according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a second embodiment of an exhaust pipe base;

fig. 4 is a schematic diagram of a mounting structure of a pressure limiting valve according to an embodiment of the present utility model.

Reference numerals illustrate:

1. an exhaust pipe body; 11. a large diameter tube; 111. a first conical wall; 112. a second conical wall; 113. a planar wall; 12. a small diameter tube; 121. a second boss; 2. an exhaust pipe base; 21. a protruding shaft; 211. a first boss; 22. a threaded hole; 23. a seal ring groove; 241. a cross groove; 31. a first seal ring; 32. a second seal ring; 4. a valve body cover; 41. a sealing cone; 42. an anti-drop ring; 5. a pot cover body; 51. a steel cover; 52. and (5) a face cover.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Moreover, in the drawings, the Z axis represents the vertical direction, that is, the up-down direction, and the positive direction of the Z axis represents the up, and the negative direction of the Z axis represents the down. It should also be noted that the foregoing Z-axis is provided merely for convenience of description and to simplify the description and is not to be construed as indicating or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present utility model.

Referring to fig. 1-2 and fig. 4, an exhaust pipe according to an embodiment of the present utility model includes an exhaust pipe body 1 and an exhaust pipe base 2, wherein a protruding shaft 21 protrudes from one end of the exhaust pipe base 2, the exhaust pipe base 2 is provided with a threaded hole 22 penetrating through the protruding shaft 21, an end of the protruding shaft 21 is used to penetrate through a mounting hole of a pot cover body 5 and is riveted on the pot cover body 5 to form a first boss 211, and an end of the exhaust pipe body 1 is used to be screwed into the threaded hole 22.

In this embodiment, when the exhaust pipe is specifically installed, the protruding shaft 21 at one end of the exhaust pipe base 2 may be first inserted into the installation hole from the lower side of the pot cover body 5, then the portion of the protruding shaft 21 extending out of the upper side of the installation hole may be riveted downward into the first boss 211 by using a riveting tool, so as to complete the installation and fixation of the exhaust pipe base 2 and the pot cover body 5, then the bottom end of the exhaust pipe body 1 may be screwed into the threaded hole 22 of the exhaust pipe base 2, finally the installation and fixation of the whole exhaust pipe are completed, no additional parts such as screws and nuts are needed, the structure is simple, the assembly efficiency is high, wherein the threaded hole 22 in this embodiment may be a through hole, and the gas in the pot body may enter into the exhaust pipe body 1 from the through hole.

In the present embodiment, it is understood that the outer wall of one end of the exhaust pipe body 1 has an external thread, by which the exhaust pipe body 1 is connected with the screw hole 22 of the exhaust pipe base 2.

Wherein, blast pipe base 2 one end protrusion is provided with protruding axle 21, means protruding axle 21 and blast pipe base 2 are integrated into one piece structure, reduce the installation of spare part.

It should be noted that the improvement of the present embodiment mainly lies in the connection relationship between the exhaust pipe and the lid body 5, and the connection relationship between the valve body cover 4 and the exhaust pipe, and the structure of the valve body cover 4 may be the prior art, and the specific structure thereof is well known to those skilled in the art, so that the details thereof will not be described herein.

Referring to fig. 3, specifically, the threaded hole 22 is a blind hole, one end of the threaded hole 22 as a blind hole penetrates to the end of the male shaft 21, a cross groove 241 is formed at one end of the exhaust pipe base 2 away from the male shaft 21, and the cross groove 241 communicates with the other end of the threaded hole 22 as a blind hole.

In this embodiment, by providing the cross groove 241 on the bottom end of the exhaust pipe base 2, it is able to communicate with the threaded hole 22 as a blind hole, and the width of the cross groove 241 is smaller than the diameter of the threaded hole 22, so that large particle food is prevented from entering the threaded hole 22, and the threaded hole 22 is prevented from being blocked.

Wherein the crossing groove 241 may be a cross-shaped groove. Of course, in other embodiments, other shaped slots are possible, as long as the threaded bore 22 is prevented from being blocked.

Referring to fig. 4, optionally, the exhaust pipe further includes a first sealing ring 31, the first sealing ring 31 is sleeved on the protruding shaft 21, and two axial sides of the first sealing ring 31 are respectively used for abutting against the pot cover body 5 and the exhaust pipe base 2.

In this embodiment, a first sealing ring 31 is disposed between the exhaust pipe base 2 and the pot cover body 5, so as to ensure that gas inside the pot body cannot leak between the two.

Specifically, when the exhaust pipe base 2 is installed, the first sealing ring 31 can be sleeved on the protruding shaft 21 and abuts against the end face of the exhaust pipe base 2, then, the protruding shaft 21 at one end of the exhaust pipe base 2 can penetrate into the installation hole from the lower side of the pot cover body 5 upwards, then, the part, protruding from the upper side of the installation hole, of the protruding shaft 21 can be riveted downwards into the first boss 211 by using a riveting tool, and then, the installation and fixation of the exhaust pipe base 2 and the pot cover body 5 are completed, when the first boss 211 is riveted and formed on the upper end face of the pot cover body 5, the first sealing ring 31 is also pressed and fixed on the lower end face of the pot cover body 5 by the upper end face of the exhaust pipe base 2, and at the moment, the first sealing ring 31 has a sealing function.

Referring to fig. 2 and 4, optionally, a seal groove 23 is disposed at a connection portion between the exhaust pipe base 2 and the male shaft 21, and the first seal 31 is disposed in the seal groove 23.

In this embodiment, before the exhaust pipe base 2 is installed under the condition of having the sealing ring groove 23, the first sealing ring 31 can be sleeved on the protruding shaft 21 and placed in the sealing ring groove 23, when the first boss 211 is formed on the upper end face of the pot cover body 5 by riveting, the upper end face of the exhaust pipe base 2 is also abutted against the lower side of the pot cover body 5, meanwhile, the first sealing ring 31 compensates the gap between the upper end face of the exhaust pipe base 2 and the lower side face of the pot cover body 5, the sealing effect is better, and the distance from the bottom of the exhaust pipe base 2 to the pot bottom can be reduced, so that the pot body space is maximally utilized, and meanwhile, the first sealing ring 31 is not exposed in the pot body, so that the durability of the first sealing ring 31 can be improved.

Referring to fig. 4, optionally, the exhaust pipe further includes a second sealing ring 32, a second boss 121 is protruding from a side wall of the exhaust pipe body 1 along a radial direction, the second sealing ring 32 is sleeved on the exhaust pipe body 1, one axial side of the second sealing ring 32 is used for abutting against the second boss 121, and the other axial side of the second sealing ring 32 is used for abutting against the pot cover body 5 or the protruding shaft 21.

In this embodiment, the exhaust pipe includes the first sealing ring 31, and further includes the second sealing ring 32, which can prevent gas from leaking from the screw gap between the exhaust pipe body 1 and the threaded hole 22, and the sealing effect of the first sealing ring 31 is matched, so that the gas in the pan body can only enter the threaded hole 22 and the hole in the exhaust pipe body 1.

Specifically, after the exhaust pipe base 2 is installed, and before the exhaust pipe body 1 is installed, the second sealing ring 32 may be sleeved on the exhaust pipe body 1 from bottom to top, so that the second sealing ring 32 is located below the second boss 121, and then the bottom end of the exhaust pipe body 1 may be screwed into the threaded hole 22 until the second sealing ring 32 is extruded by the second boss 121 on the top end of the pot cover body 5 or the protruding shaft 21, so as to achieve the sealing effect of the second sealing ring 32.

After the top end of the protruding shaft 21 is riveted downward to form the first boss 211, the top end of the protruding shaft 21 is the top end of the first boss 211, which can be understood in the same manner.

Wherein, the side wall of the exhaust pipe body 1 is provided with a second boss 121 along the radial protrusion, which means that the second boss 121 and the exhaust pipe body 1 are of an integrated structure, thereby reducing the installation of parts.

Referring to fig. 1 and 4, alternatively, the exhaust pipe body 1 includes an integrally formed small diameter pipe 12 and a large diameter pipe 11, wherein an end of the small diameter pipe 12 away from the large diameter pipe 11 is used for being screwed into the threaded hole 22, a side wall of the large diameter pipe 11 is in transitional connection with an end surface of the large diameter pipe 11 away from the small diameter pipe 12 through a first conical wall 111, and a side wall of the large diameter pipe 11 is in transitional connection with a side wall of the small diameter pipe 12 through a second conical wall 112.

In the present embodiment, by designing the diameter of the large diameter pipe 11 to be larger than the diameter of the small diameter pipe 12, and providing the first tapered wall 111 and the second tapered wall 112, it is easy to install the valve body cover 4. Specifically, the valve body cover 4 generally includes a cover body, a seal cone 41, and a drop-off prevention ring 42. The sealing cone 41 is arranged at the top of the inner wall of the cover body, the anti-falling ring 42 is arranged at the bottom of the inner wall of the cover body, the anti-falling ring 42 is used for elastic deformation, and the inner diameter of the anti-falling ring 42 in a natural state is smaller than the outer diameter of the large-diameter pipe 11. So, after the installation of blast pipe base 2 and blast pipe body 1 is accomplished, can cover the cover body downwards in blast pipe body 1 gradually, after anticreep circle 42 butt first toper wall 111, can use great power to continue to push down the cover body in order to force anticreep circle 42 to warp, and then make anticreep circle 42 remove the second toper wall 112 below along first toper wall 111, accomplish the installation of valve body cover 4 so far, the sealing washer bottom of valve body cover 4 also stretches into the top of blast pipe body 1 internal hole this moment, realizes the seal to blast pipe body 1 top. When the pressure in the pot body is higher than the set pressure, the sealing cone 41 and the whole valve body cover 4 are jacked upwards by the air pressure, so that the pressure is relieved and the air is exhausted. When the interior of the valve body cover 4 and the exhaust pipe need to be cleaned, the valve body cover 4 can be pulled upwards until the anti-falling ring 42 abuts against the second conical wall 112, at this time, the valve body cover 4 can be continuously touched upwards by using a larger force so as to force the anti-falling ring 42 to deform, and the anti-falling ring 42 is moved out along the second conical wall 112, so that the disassembly and the cleaning of the valve body cover 4 are completed.

The sealing cone 41 may be made of rubber. The inner diameter of the anti-drop ring 42 in the natural state is smaller than the outer diameter of the large-diameter pipe 11, and the inner diameter is larger than the outer diameter of the small-diameter pipe 12, so that gas can be discharged from a gap between the anti-drop ring 42 and the small-diameter pipe 12 after being discharged from the top of the exhaust pipe during pressure relief.

Referring to fig. 1, the side wall of the exhaust pipe body 1 is optionally provided with at least one pair of planar walls 113 parallel to each other.

In this embodiment, by providing the planar walls 113 parallel to each other, the planar walls 113 can facilitate manual force or facilitate wrench force when screwing the exhaust pipe into the screw hole 22.

The pressure limiting valve comprises a valve body cover 4 and the exhaust pipe, wherein the valve body cover 4 is sleeved at one end of the exhaust pipe body 1 far away from the exhaust pipe base 2, and the valve body cover 4 is used for moving relative to the exhaust pipe body 1 so as to block or open the top end of the exhaust pipe body 1.

A still further embodiment of the present utility model is a lid assembly comprising a pressure limiting valve as described above.

The pot body generally comprises a steel cover 51 positioned on the inner side and a surface cover 52 positioned on the outer side, wherein the steel cover 51 mainly plays a role in providing enough strength and rigidity for the pot cover assembly, and the surface cover 52 mainly plays a role in decoration.

The exhaust pipe base 2 is fixed on the steel cover 51 by riveting, and the structural strength after installation is enough.

A pressure cooker in accordance with yet another embodiment of the utility model includes a cover assembly as previously described.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" and "a second" may explicitly or implicitly include at least one such feature.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims

1. The utility model provides an blast pipe, its characterized in that, includes blast pipe body (1) and blast pipe base (2), the one end protrusion of blast pipe base (2) is provided with protruding axle (21), blast pipe base (2) are provided with run through screw hole (22) of protruding axle (21), the tip of protruding axle (21) is used for passing the mounting hole of pot cover body (5), and the riveting is in on pot cover body (5) in order to form first boss (211), the tip of blast pipe body (1) be used for threaded connection in screw hole (22).

2. The exhaust pipe according to claim 1, characterized in that the threaded hole (22) is a blind hole, one end of the threaded hole (22) penetrates to the end of the protruding shaft (21), a cross groove (241) is formed in one end of the exhaust pipe base (2) away from the protruding shaft (21), and the cross groove (241) is communicated with the other end of the threaded hole (22).

3. The exhaust pipe according to claim 1, further comprising a first sealing ring (31), wherein the first sealing ring (31) is sleeved on the protruding shaft (21), and two axial sides of the first sealing ring (31) are respectively used for abutting against the pot cover body (5) and the exhaust pipe base (2).

4. An exhaust pipe according to claim 3, characterized in that the connection of the exhaust pipe base (2) and the male shaft (21) is provided with a sealing ring groove (23), the first sealing ring (31) being arranged in the sealing ring groove (23).

5. The exhaust pipe according to claim 1, further comprising a second sealing ring (32), wherein a second boss (121) is radially protruding from a side wall of the exhaust pipe body (1), the second sealing ring (32) is sleeved on the exhaust pipe body (1), one axial side of the second sealing ring (32) is used for being abutted to the second boss (121), and the other axial side of the second sealing ring (32) is used for being abutted to the pot cover body (5) or the boss (21).

6. The exhaust pipe according to claim 1, characterized in that the exhaust pipe body (1) comprises an integrally formed small-diameter pipe (12) and a large-diameter pipe (11), one end of the small-diameter pipe (12) away from the large-diameter pipe (11) is used for being connected in the threaded hole (22) in a threaded mode, the side wall of the large-diameter pipe (11) is connected with one end face of the large-diameter pipe (11) away from the small-diameter pipe (12) in a transitional mode through a first conical wall (111), and the side wall of the large-diameter pipe (11) is connected with the side wall of the small-diameter pipe (12) in a transitional mode through a second conical wall (112).

7. The exhaust pipe according to claim 1, characterized in that the side wall of the exhaust pipe body (1) is provided with at least one pair of mutually parallel planar walls (113).

8. A pressure limiting valve, characterized by comprising a valve body cover (4) and the exhaust pipe according to any one of claims 1-7, wherein the valve body cover (4) is sleeved at one end of the exhaust pipe body (1) far away from the exhaust pipe base (2), and the valve body cover (4) is used for moving relative to the exhaust pipe body (1) so as to block or open the top end of the exhaust pipe body (1).

9. A lid assembly comprising the pressure limiting valve of claim 8.

10. A pressure cooker comprising a cover assembly as claimed in claim 9.