CN220344217U

CN220344217U - Pot cover with negative pressure protection

Info

Publication number: CN220344217U
Application number: CN202322070381.8U
Authority: CN
Inventors: 陈合林
Original assignee: Hubei Aishida Electrical Equipment Co ltd; Ashtar Co ltd
Current assignee: Hubei Aishida Electrical Equipment Co ltd; Ashtar Co ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-01-16
Anticipated expiration: 2033-08-02

Abstract

The utility model discloses a pot cover with negative pressure protection, belongs to the technical field of cooking appliances, and aims to overcome the defect that an existing glass pot cover with a sealing gasket is easy to crack. The pot cover comprises a cover body, wherein a mounting hole is formed in the cover body, an elastic seat is arranged at the mounting hole, an annular groove is formed in the side wall of the elastic seat, the edge of the mounting hole is embedded into the annular groove, a protection channel communicated with atmosphere is formed in the top wall and the side wall of the annular groove, and the bottom wall of the annular groove is attached to the cover body. When the pressure difference between the inside of the pot body and the atmospheric pressure is overlarge, the atmospheric pressure transmits the pressure to the bottom wall of the annular groove through the protection channel, so that the bottom wall of the annular groove deforms, the bottom wall of the annular groove is not attached to the cover body any more, the cooking space in the pot body is communicated with the outside atmosphere, the pot cover is prevented from being burst due to overlarge stress, and the use safety of the pot is improved.

Description

Pot cover with negative pressure protection

Technical Field

The utility model belongs to the technical field of cooking appliances, and relates to a pot cover with negative pressure protection.

Background

Most of the pot covers in the current market are open in the exhaust port, the aperture is small, a sealing ring is not arranged between the pot cover and the pot body, and as the steam rises, the steam pushes up and slightly moves the pot cover, so that the fit clearance between the pot cover and the steam is enlarged, a large amount of steam in the pot is lost from the gap, and the micro-pressure effect and the energy-saving effect are difficult to achieve. Some cookers are provided with a sealing gasket on the cooker cover or the contact surface of the cooker body, and the gap between the cooker cover and the cooker body is reduced or closed by the self weight of the cooker cover. However, after heating is stopped, negative pressure is generated in the cooling of the pot relative to the atmosphere, and when the pressure difference is too large, the glass pot cover is easy to crack, so that a great potential safety hazard exists.

Disclosure of Invention

The utility model provides a pot cover with negative pressure protection aiming at the problems in the prior art, and aims to overcome the defect that the existing glass pot cover with a sealing gasket is easy to crack.

The utility model is realized in the following way:

the utility model provides a take pot cover of negative pressure protection, includes the lid, be equipped with the mounting hole on the lid, its characterized in that, mounting hole department sets up the elastic seat, have the ring channel on the lateral wall of elastic seat, the edge embedding of mounting hole the ring channel, have the protection passageway of intercommunication atmosphere on the roof and the lateral wall of ring channel, the diapire laminating of ring channel is in on the lid. The pot cover is matched with the pot body for use, the pot cover is arranged on the pot body, a large amount of steam is generated in the pot body in the heating and cooking process, after heating is stopped, the steam in the pot body is cooled to generate negative pressure, when the pressure difference between the inside of the pot body and the atmospheric pressure is overlarge, the atmospheric pressure is transmitted to the bottom wall of the annular groove through the protection channel, so that the bottom wall of the annular groove is deformed, the bottom wall of the annular groove is not attached to the cover body any more, the cooking space in the pot body is communicated with the outside atmosphere, the pot cover is prevented from being burst due to overlarge stress, and the use safety of the pot is improved. The cooker can be a steamer, a frying pan or a boiling pan.

Preferably, the elastic seat is provided with an exhaust channel, a movable valve is arranged in the exhaust channel, a supporting part is arranged on the side wall of the exhaust channel, and the valve is provided with a sealing part which is in sealing abutting connection with the supporting part so as to close the exhaust channel. In the cooking process, when the air pressure in the pot body is low, the sealing part is abutted against the supporting part to form a seal, so that the exhaust channel is closed; when the air pressure in the pot body is higher, the sealing part is separated from the supporting part, so that the exhaust channel can be opened, and the exhaust is convenient. Thus, micropressure cooking is achieved. The elastic seat can be made of silica gel, and an additional sealing structure is not needed to improve the sealing performance between the elastic seat and the valve.

Preferably, the valve is provided with a limiting part, when the valve is at an upper limit position, the limiting part is abutted against the supporting part, and the exhaust channel is opened. The limiting part can prevent the valve from being separated from the elastic seat.

Preferably, a protrusion is provided between the support portion and the stopper portion to allow the air flow to pass between the support portion and the stopper portion. Even if the valve moves to the upper limit position, the air flow in the pot body can still be discharged from the gap between the supporting part and the limiting part, so that the excessive cooking pressure in the pot body is avoided.

Preferably, the upper end of the valve is provided with an upward-protruding handle. Thus, the deflation operation can be performed manually.

Preferably, a sealing ring is arranged at the end edge of the cover body, a first extending wall of the sealing ring extends vertically, and a second extending wall extending obliquely downwards is arranged on the outer side of the first extending wall. The first extension wall and the second extension wall can be attached to the inner wall of the pot body to form double sealing. The second extension wall can form certain upwarp deformation volume, based on the elasticity of the second extension wall for the second extension wall can be more closely attached to the inner wall of the pot body, improves sealed effect, and even though the pot cover is jacked up by a small amount, the cooking space in the pot body can still be kept sealed.

Preferably, the upper end surface of the second extension wall has a convex pattern. When the upper surface of the second extension wall is attached to the edge of the pot cover, the second extension wall can be naturally separated from the pot cover and is not easy to adsorb on the second extension wall, the second extension wall is prevented from being adsorbed on the edge of the pot cover to offset the elasticity of the second extension wall so as to reduce the sealing effect, and the trouble that the second extension wall is manually pulled back to an initial state is also avoided.

According to the pot cover with the negative pressure protection, when the pressure difference between the inside of the pot body and the atmospheric pressure is too large, the atmospheric pressure is transmitted to the bottom wall of the annular groove through the protection channel, so that the bottom wall of the annular groove is deformed, the bottom wall of the annular groove is not attached to the cover body any more, the cooking space in the pot body is communicated with the outside atmosphere, the pot cover is prevented from being burst due to overlarge stress, and the use safety of the pot is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a lid;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the structure of the exhaust valve;

FIG. 4 is a schematic cross-sectional view of the exhaust valve with the exhaust passage closed;

fig. 5 is a schematic cross-sectional structure of the exhaust valve when the exhaust passage is opened.

The drawings are marked with the following description: 100. a cover body; 200. an elastic seat; 210. an annular groove; 211. protecting the channel; 220. an exhaust passage; 221. a support part; 222. a convex portion; 300. a valve; 310. a sealing part; 320. a limit part; 330. a handle; 400. a seal ring; 410. a first extension wall; 420. a second extension wall; 421. relief pattern.

Detailed Description

The following detailed description of the embodiments of the present utility model is provided with reference to the accompanying drawings, so that the technical scheme of the present utility model can be understood and mastered more easily. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The embodiment provides a pot cover, as shown in fig. 1-5, comprising a cover body 100, wherein a mounting hole is formed in the cover body 100, an elastic seat 200 is arranged at the mounting hole, an annular groove 210 is formed in the side wall of the elastic seat 200, the edge of the mounting hole is embedded into the annular groove 210, a protection channel 211 communicated with the atmosphere is formed in the top wall and the side wall of the annular groove 210, and the bottom wall of the annular groove 210 is attached to the cover body 100. The pot cover is matched with the pot body for use, the pot cover is arranged on the pot body, a large amount of steam is generated in the pot body in the heating and cooking process, after heating is stopped, the steam in the pot body is cooled to generate negative pressure, when the pressure difference between the inside of the pot body and the atmospheric pressure is overlarge, the atmospheric pressure is transmitted to the bottom wall of the annular groove 210 through the protection channel 211, so that the bottom wall of the annular groove 210 is deformed, the bottom wall of the annular groove 210 is not attached to the cover body 100 any more, the cooking space in the pot body is communicated with the outside atmosphere, explosion caused by overlarge stress of the pot cover is avoided, the pot cover is provided with a negative pressure protection function, and the use safety of the pot is improved.

As shown in fig. 2, 4 and 5, the elastic seat 200 has an exhaust passage 220, a movable valve 300 is disposed in the exhaust passage 220, a supporting portion 221 is disposed on a sidewall of the exhaust passage 220, and when the valve 300 is at a lower limit position, as shown in fig. 4, the valve 300 has a sealing portion 310 that is in sealing contact with the supporting portion 221 to close the exhaust passage 220. The valve 300 has a limiting portion 320, when the valve 300 is at the upper limit position, as shown in fig. 5, the limiting portion 320 abuts against the supporting portion 221, and the exhaust passage 220 is opened. The stopper 320 prevents the valve 300 from being separated from the elastic seat 200. The valve 300 can move up and down in the exhaust passage 220 to open or close the exhaust passage 220, achieving a micro-pressure cooking effect.

As shown in fig. 5, a protrusion 222 is provided between the supporting portion 221 and the limiting portion 320 to allow the air flow to pass between the supporting portion 221 and the limiting portion 320. The protruding portion 222 may be a rib or a post, and the protruding portion 222 is integrally formed on the lower surface of the supporting portion 221. The upper end of the valve 300 is provided with an upward protruding handle 330, and a user can hold the handle 330 to deflate the cooker. In other alternative embodiments, the protruding portion 222 may be integrally formed on the upper surface of the limiting portion 320.

As shown in fig. 1 and 2, the end edge of the cover body is provided with a sealing ring 400, a first extending wall 410 extending vertically from the sealing ring 400, and a second extending wall 420 extending obliquely downwards from the outer side of the first extending wall 410. The first extension wall 410 and the second extension wall 420 may be attached to the inner wall of the pot body to form a double seal. The second extension wall 420 can form a certain upwarp deformation amount, and based on the elasticity of the second extension wall 420, the second extension wall 420 can be more closely attached to the inner wall of the pot body, so that the sealing effect is improved, and even if the pot cover is jacked up by a small amount, the cooking space in the pot body can be still kept sealed. The upper end surface of the second extension wall 420 has a ridge 421. When the upper surface of the second extension wall 420 is attached to the edge of the pot cover, the second extension wall 420 can be naturally separated from the pot cover and is not easy to be adsorbed on the pot cover, so that the second extension wall 420 is prevented from being adsorbed on the edge of the pot cover to counteract the elasticity of the pot cover, the sealing effect is prevented from being reduced, and the trouble that the second extension wall 420 is manually pulled back to the initial state is also avoided. The sealing ring 400 has a fixing groove, and the end of the cover 100 is inserted into the fixing groove so that the sealing ring 400 is fixed to the cover 100.

Claims

1. The utility model provides a take pot cover of negative pressure protection, includes lid (100), be equipped with the mounting hole on lid (100), its characterized in that, mounting hole department sets up elastic seat (200), have ring channel (210) on the lateral wall of elastic seat (200), the edge embedding of mounting hole ring channel (210), have protection channel (211) of intercommunication atmosphere on the roof and the lateral wall of ring channel (210), the diapire laminating of ring channel (210) is in on lid (100).

2. The pot cover with negative pressure protection according to claim 1, wherein the elastic seat (200) is provided with an exhaust passage (220), a movable valve (300) is arranged in the exhaust passage (220), a supporting part (221) is arranged on the side wall of the exhaust passage (220), and the valve (300) is provided with a sealing part (310) in sealing abutting connection with the supporting part (221) so as to close the exhaust passage (220).

3. The pot cover with negative pressure protection according to claim 2, wherein the valve (300) is provided with a limiting part (320), when the valve (300) is at an upper limit position, the limiting part (320) is abutted against the supporting part (221), and the exhaust channel (220) is opened.

4. A lid with negative pressure protection according to claim 3, characterized in that a protrusion (222) is provided between the support part (221) and the limiting part (320) to allow the passage of air flow between the support part (221) and the limiting part (320).

5. The pot cover with negative pressure protection according to claim 2, characterized in that the upper end of the valve (300) is provided with an upward protruding handle (330).

6. The pot cover with the negative pressure protection according to claim 1, wherein a sealing ring (400) is arranged at the end edge of the cover body, a first extending wall (410) extending vertically of the sealing ring (400), and a second extending wall (420) extending obliquely downwards is arranged on the outer side of the first extending wall (410).

7. The pot cover with negative pressure protection according to claim 6, wherein the upper end surface of the second extension wall (420) is provided with a relief (421).