CN210972195U - Container lid and container - Google Patents

Abstract

The utility model belongs to the technical field of the pan, a container lid and container are related to. The container cover comprises a cover body and a pressure relief mechanism arranged on the cover body; the pressure relief mechanism comprises a cover body and a pressure relief mechanism arranged on the cover body, wherein the cover body is provided with an installation through groove; the pressure relief mechanism comprises a pressure relief upper cover, a pressure relief valve body and a pressure relief seat; the pressure relief upper cover covers the installation through groove, the pressure relief seat is hermetically installed in the installation through groove, and the pressure relief upper cover, the pressure relief seat and the installation through groove jointly enclose a pressure relief cavity; the pressure relief seat is provided with a pressure relief channel communicated with the pressure relief cavity; the pressure relief valve body is accommodated in the pressure relief cavity and movably blocks or opens the pressure relief channel. This application can keep the inside and outside pressure balance of pot, can avoid the too big drawback that makes lid body or other parts rebound or pop out of pressure, has prevented the outer hourglass of liquid, has eliminated the potential safety hazard of being scalded etc. avoided extravagant, has ensured the heat preservation effect.

Description

Container lid and container

Technical Field

The utility model belongs to the technical field of the pan, concretely relates to container lid and container.

Background

At present, the types of the heat preservation containers on the market are various, and the functions, the prices and the like are different. The food is contained in the heat-preservation lifting pot with the heat-preservation effect, so that the food can be prevented from being cooled in a short time, the food can be conveniently carried outside, and better taste and delicious taste can be kept when the food is eaten.

Various vacuum heat-preservation lifting pot designs are available, and generally comprise two main parts, namely a pot cover and a pot body which are correspondingly covered. However, the conventional pot cover of the thermal lifting pot still has some inconveniences and defects due to the imperfect sealing or pressure relief technology in structure and use, and further improvement is urgently needed.

For example, in the vacuum thermal insulating lifting pot on the market, when the vacuum thermal insulating lifting pot is carried out and violently shaken, the pressure in the pot rises, so that the anti-overflow cover or the sealing cover can pop up or move upwards, liquid contained in the contained food can leak outwards, the risk of scalding can be caused, and meanwhile, waste can be caused to different degrees.

Therefore, the pot cover of the heat-preservation lifting pot still has room for improvement. In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

A first object of the present invention is to provide a container cover, which can prevent the pressure release of the conventional lid, and prevent the food from being exposed or spilling due to shaking or the like, thereby overcoming the above problems or at least partially solving the above technical problems.

A second object of the present invention is to provide a container, comprising the container cover, which has at least the same advantages as the above container cover.

In order to achieve the above object, the utility model adopts the following technical scheme:

according to an aspect of the present invention, the present invention provides a container cover, which includes a cover body and a pressure relief mechanism disposed on the cover body, wherein the cover body is provided with an installation through groove;

the pressure relief mechanism comprises a pressure relief upper cover, a pressure relief valve body and a pressure relief seat;

the pressure relief upper cover covers the installation through groove, the pressure relief seat is hermetically installed in the installation through groove, and the pressure relief upper cover, the pressure relief seat and the installation through groove jointly enclose a pressure relief cavity;

the pressure relief seat is provided with a pressure relief channel communicated with the pressure relief cavity;

the pressure relief valve body is accommodated in the pressure relief cavity and movably blocks or opens the pressure relief channel.

The container cover can be a pot cover, and is suitable for various pots with heat preservation functions, in particular to a portable heat preservation pot. When hot liquid is contained in the pot, the pressure in the pot can be increased in the shaking process of the hot liquid in the pot, the air flow can be discharged out of the pot through the pressure relief mechanism, the balance of the internal pressure and the external pressure of the pot is kept, and the defects that the cover body or other parts move upwards due to overlarge pressure, the leakage or the scald is caused and the like are avoided.

Be equipped with the installation on this lid body and lead to the groove, pressure release mechanism includes the pressure release upper cover, pressure release valve body and pressure release seat, the pressure release upper cover, pressure release seat encloses into a pressure release chamber with the installation leads to the groove jointly, the pressure release seat is equipped with the pressure release passageway, pressure release valve body and the corresponding setting of this pressure release passageway, can be with pressure release passageway shutoff or open through pressure release valve body, when the pressure rises in the pot promptly, pressure release valve body can open pressure release passageway, the air current can be via pressure release passageway and pressure release chamber discharge outside the pot, and then can keep the inside and outside pressure balance of pot.

Further, the pressure relief upper cover is in threaded connection with the installation through groove.

Optionally, the outer side wall of the pressure release upper cover is provided with a first thread, the inner side wall of the installation through groove is provided with a second thread matched with the first thread, and the pressure release upper cover and the installation through groove are connected through the first thread and the second thread to realize threaded connection.

Optionally, the mounting through slot is arranged in the middle of the cover body.

Like this, will let out gland and lid body and link together through threaded connection's mode, simple structure, installation and convenient operation are convenient for make, connect the good reliability.

Furthermore, the pressure relief valve body is a gravity valve and movably accommodated in the pressure relief cavity, and moves upwards under the action of air pressure to open the pressure relief channel or block the pressure relief channel under the action of gravity.

The pressure relief valve body is a gravity valve and can also be called a pressure relief ball, and the outer diameter of the pressure relief ball is larger than that of the pressure relief channel. The pressure relief ball is arranged in the pressure relief cavity and is arranged above the pressure relief channel, on one hand, the pressure relief ball can be completely attached to the pressure relief channel by means of self gravity, and the outer diameter of the pressure relief channel is smaller than that of the pressure relief ball, so that the pressure relief channel can be plugged, and a product is in a sealed state; on the other hand, when the pressure in the cooker rises, the pressure can jack the pressure relief ball to open the pressure relief channel, and the air flow is discharged through the linear notch, the pressure relief channel and the pressure relief cavity, so that the defect that the cover body moves upwards or pops up is avoided, and the pressure balance inside and outside the cooker is ensured.

Optionally, the pressure relief channel is provided with an exhaust port, and the pressure relief ball can contact with the exhaust port by means of self gravity, so that the pressure relief channel can be blocked; or the pressure relief ball can be separated from the vent under the action of the ascending airflow pressure so as to open the pressure relief channel. Like this, simple structure, with low costs, required spare part is few, need not parts such as unnecessary elastic component, pressure release pole, can carry the pot to the heat preservation and carry the pressure release or seal, convenient to use, the practicality is strong.

Further, the pressure relief mechanism further comprises a pressure relief lower cover located in the pressure relief cavity, the pressure relief lower cover is sleeved at the lower end of the pressure relief upper cover, the pressure relief channel is located in the pressure relief lower cover, and the pressure relief valve body can be supported at the top end of the pressure relief lower cover and blocks the pressure relief channel.

Optionally, the pressure relief upper cover and the pressure relief lower cover can be made of plastic. The pressure relief upper cover and the pressure relief lower cover are detachably connected; for example, the connection mode of the upper pressure relief cover and the lower pressure relief cover can be threaded connection, abutting connection, overlapping connection and the like. Moreover, a sealing element is not adopted for sealing between the pressure relief upper cover and the pressure relief lower cover, so that a gap allowing air flow to pass through is formed between the pressure relief upper cover and the pressure relief lower cover; i.e., fluid can be discharged from between the pressure relief upper cover and the pressure relief lower cover.

It can be understood that this pressure release lid mainly forms by the equipment of pressure release upper cover and pressure release lower cover, like can adopt the pressure release upper cover and the pressure release lower cover of materials preparation such as plastics, the two can adopt conventional mode to connect to can not reach the state of complete sealing after connecting, thereby when pressure in the pot rises, the air current can get into the pressure release chamber through pressure release passageway, then can discharge through the space that exists between pressure release upper cover and the pressure release lower cover again. Therefore, the air flow can be smoothly circulated, and the air flow circulating device is simple in structure, easy to install and operate and low in cost.

Further, the sealing cover further comprises a sealing ring, and the sealing ring is arranged on the inner side of the cover body; the sealing ring is arranged on the periphery of the inner side of the cover body, so that the sealing effect of the container can be improved, the possibility of liquid leakage in the pot is reduced, and the heat preservation effect is efficient and lasting.

Furthermore, the outer side wall of the sealing ring is provided with at least two protruding ribs extending outwards;

wherein part of the raised ribs are used for being abutted against the top end of the container body, and the rest raised ribs are used for being abutted against the side wall of the container body. Therefore, the multi-water-blocking effect can be achieved, the sealing effect can be better achieved, and liquid can be better prevented from leaking outwards.

It should be understood that the container body can be understood as a pot body or a pan body for containing liquid or food, and the container mainly comprises a container cover and a container body, wherein the container cover is arranged on the container body.

Optionally, the sealing ring is made of rubber.

The protruding rib is the bellying that sets up along sealing washer lateral wall hoop. The raised ribs and the sealing ring can be of an integrated structure. The plurality of raised ribs are arranged at intervals. The number of the projecting ribs is not particularly limited, and may be, for example, typically but not restrictively, two, three, four, etc.

Exemplarily, the quantity of protruding rib is two, and the lower lateral wall of one of them protruding rib and vessel body's roof butt, the lateral wall of another protruding rib and vessel body's inside wall butt, like this, can play the dual effect that blocks water, can effectually prevent that the hot water juice from leaking outward, promote sealed effect, and the effect of keeping warm moreover is more lasting.

Further, the cover body comprises a first cover body and a second cover body, and the first cover body is arranged outside the second cover body;

the first container cover body is provided with a through groove, the second container cover body is provided with a mounting hole communicated with the through groove, and the through groove and the mounting hole form the mounting through groove together;

the pressure relief seat is installed in the mounting hole, and the pressure relief upper cover and the pressure relief valve body are installed in the through groove.

For example, the upper pressure relief cover and the lower pressure relief cover may be provided in the through groove of the first container lid body, and the pressure relief seat may be provided in the mounting hole of the second container lid body.

It can be understood that first container lid body is the enclosing cover, second container lid body is the inner cup, at the mid-mounting pressure release upper cover and the pressure release lower cover of enclosing cover, install the pressure release valve body in the pressure release upper cover, at the mid-mounting pressure release seat of inner cup, liquid when the pot is hot is rocking the in-process, the pressure in the pot can rise, when pressure is big to a certain extent, the gravity of pressure release valve body can be overcome, the air current is discharged by pressure release mechanism, in order to keep the atmospheric pressure unanimous in the pot and outside the pot, and then can avoid the too big inside cup rebound or the drawback of popping out of making of pressure in the pot, the hourglass of liquid has been prevented, the potential safety hazard has been eliminated, also avoid extravagant, the heat.

Optionally, the outer side of the second container cover body is sleeved with a sealing ring, and the outer side wall of the sealing ring is provided with at least two protruding ribs extending outwards. It is to be understood that when the cover body includes a first cover body and a second cover body, the seal ring is disposed along a circumferential direction of the second cover body. Furthermore, the lateral wall of pressure release seat is provided with the joint groove, the pressure release seat inserts in the mounting hole, and make the joint groove joint in the edge of mounting hole.

Optionally, the mounting hole is provided with an arch matched with the clamping groove, the pressure relief seat and the mounting hole are clamped through the clamping groove and the arch, the pressure relief seat is inserted into the mounting hole, and the clamping groove is clamped on the arch of the mounting hole.

Optionally, the pressure relief seat is made of rubber; the pressure relief seat can be made of silicon rubber for example; the cover body can be made of metal. The pressure relief seat is inserted into the mounting hole and clamped with the mounting hole.

Alternatively, the mounting hole is provided at an intermediate position of the second container cover body. The position of the mounting hole on the second container cover body can correspond to the position of the through groove on the first container cover body, and the mounting through groove is formed together.

It can be understood that the pressure relief seat is made of soft rubber, so that a pressure relief channel and a notch are convenient to arrange, the cost is low, the installation is convenient, and the pressure relief seat is only required to be inserted into the installation hole during installation, so that the pressure relief seat can be tightly matched and connected with the pressure relief seat installation hole.

Furthermore, the pressure relief channel penetrates through the middle of the pressure relief seat, a stop piece for sealing the pressure relief channel is further arranged in the pressure relief channel, and a linear notch communicated with the pressure relief channel is formed in the stop piece.

The stop piece of the pressure relief channel is provided with the notch, and the notch is preferably provided with the linear notch as the pressure relief hole, so that the air flow can be uniformly discharged, the uniformity of air exhaust is improved, the smooth air flow in the pressure relief work process is ensured, and the phenomenon of poor air exhaust effect or air leakage in the use process caused by the overlarge notch can be avoided.

Optionally, a linear notch is formed in the middle of the stopping piece, the length of the linear notch can be slightly smaller than that of the stopping piece, and the width of the linear notch can be far smaller than that of the stopping piece. Thus, the exhaust effect is promoted, and the pressure balance inside and outside the pot is ensured.

Optionally, the pressure relief seat may include two support bottom walls and a connection layer located between the two support bottom walls, the connection layer may serve as a stopper of the pressure relief channel, the stopper is different from the two support bottom walls in height, that is, a linear notch is formed in the middle of the connection layer.

According to another aspect of the present invention, the present invention provides a container, which includes a container body and a container cover.

Further, the container comprises a vacuum heat-preservation lifting pot.

Further, a pot opening seat is arranged at the upper end of the container body, and the first container cover body is connected with the pot opening seat in a screwing mode.

Further, a handle can be arranged on the pan opening seat; or a handle may be provided on the container body.

Compared with the prior art, the technical scheme provided by the application can achieve the following beneficial effects:

the container cover comprises a pressure relief mechanism, the pressure relief mechanism comprises a pressure relief upper cover, a pressure relief valve body and a pressure relief seat, the pressure relief upper cover, the pressure relief seat and the installation through groove jointly enclose a pressure relief cavity, the pressure relief seat is provided with a pressure relief channel, the pressure relief valve body is accommodated in the pressure relief cavity, the pressure relief valve body is arranged corresponding to the pressure relief channel, the pressure relief channel can be plugged or opened through the pressure relief valve body, namely when the pressure in the cooker rises, the pressure relief channel can be opened by the pressure relief valve body, airflow can be exhausted out of the cooker through the pressure relief channel and the pressure relief cavity, and further the internal and external pressure balance of the cooker can be; in addition, the pressure relief channel can be plugged by the pressure relief valve body, so that the container is in a sealed state. Therefore, the defect that the container cover body or other parts move upwards or pop up due to overlarge pressure can be avoided, liquid is prevented from leaking outwards, potential safety hazards such as scalding are eliminated, waste is avoided, and the heat preservation effect is ensured.

The container comprises the container cover, so that the advantages of the container and the container cover relative to the prior art are the same, and are not described in detail herein.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Other features and advantages of the present invention will be described in the detailed description which follows, in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a container cover according to an embodiment of the present invention;

fig. 2 is a schematic view of a container cover according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2;

fig. 4 is a schematic structural view of a pressure relief seat according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a container according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a container according to an embodiment of the present invention;

fig. 7 is an enlarged view of B in fig. 6.

Reference numerals:

1-a container lid;

110-a first container lid body;

120-a second container lid body;

130-a pressure relief valve body;

140-installing a through groove;

141-pressure relief upper cover; 142-a pressure relief lower cover;

150-pressure relief seat; 151-stop piece; 152-a pressure relief channel; 153-vent; 154-incision; 155-a clamping groove;

160-sealing ring; 161-raised ribs;

2-a container body;

3-pot mouth seat;

4-a handle.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is made in detail with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," "secured," and the like are intended to be inclusive and mean that, for example, a "coupled" can be a fixed connection, a removable connection, an integral connection, or an electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As will be appreciated by those skilled in the art, as mentioned in the background, the lid of the prior art thermal lift pot is prone to eject or move upwards when the pressure in the pot rises, which may cause the liquid contained in the contained food to leak outwards, thereby causing the risk of scalding.

In order to overcome the defects of the prior art, the technical scheme of the embodiment of the application provides the container cover, which comprises a cover body and a pressure relief mechanism arranged on the cover body; and a container comprising the container lid.

Those skilled in the art understand that the container cover provided by the embodiment of the application can be a pot cover, and is suitable for various pots with heat preservation functions. The container can comprise a vacuum heat-preservation lifting pot and can also comprise other heat-preservation containers with heat preservation functions and requiring pressure relief.

For simplicity, the embodiment of the application specifically explains the container cover and the container by taking a vacuum heat-preservation lifting pot as an example.

Specifically, referring to fig. 1-7, the vacuum insulation lifting pot may include: the container comprises a container cover 1 and a container body 2, wherein a pot opening seat 3 can be arranged at the upper end of the container body 2, the container cover 1 can be screwed on the pot opening seat 3, and a handle 4 can also be arranged on the pot opening seat 3.

The container cover 1 comprises a cover body and a pressure relief mechanism arranged on the cover body, wherein the cover body is provided with an installation through groove 140; the pressure relief mechanism includes a pressure relief upper cover 141, a pressure relief valve body 130, and a pressure relief seat 150; the pressure relief upper cover 141 covers the installation through groove 140, the pressure relief base 150 is hermetically installed in the installation through groove 140, and the pressure relief upper cover 141, the pressure relief base 150 and the installation through groove 140 jointly enclose a pressure relief cavity; the pressure relief seat 150 is provided with a pressure relief channel 152 communicated with the pressure relief cavity; the pressure relief valve body 130 is accommodated in the pressure relief cavity and movably blocks or opens the pressure relief passage 152. When the pressure in the cooker rises, the pressure relief valve body 130 moves upwards under the action of air pressure, the pressure relief channel 152 can be opened, air flow can be discharged out of the cooker through the pressure relief channel 152 and the pressure relief cavity, the internal and external pressures of the cooker can be kept balanced, the defect that the container cover body moves upwards or pops out due to overlarge pressure is avoided, liquid leakage is prevented, potential safety hazards such as scalding are eliminated, and waste is avoided; in addition, after pressure is balanced or in a normal state, the pressure relief valve body 130 can move downwards under the action of gravity to block the pressure relief channel 152, so that the container is in a sealed state, and the heat preservation effect is ensured.

The container cover 1 comprises a cover body and a pressure relief mechanism, wherein the cover body comprises a first container cover body 110 and a second container cover body 120, and the first container cover body 110 is arranged outside the second container cover body 120; the first container cover body 110 is provided with a through groove, the second container cover body 120 is provided with a mounting hole communicated with the through groove, and the through groove and the mounting hole form a mounting through groove 140; the pressure relief seat 150 is installed in the installation hole; the pressure-discharge upper cap 141 and the pressure-discharge lower cap 142 are installed in the through groove of the first container cap body.

A through groove is formed in the middle of the first container cover body 110, a mounting hole is formed in the middle of the second container cover body 120, and the through groove and the mounting hole together form a mounting through groove 140. The pressure relief upper cover 141 is screwed with the mounting through groove 140. The pressure relief mechanism further comprises a pressure relief lower cover 142 located in the pressure relief cavity, the pressure relief lower cover 142 is sleeved at the lower end of the pressure relief upper cover 141, the pressure relief channel 152 is located in the pressure relief lower cover 142, and the pressure relief valve body 130 can be supported at the top end of the pressure relief lower cover 142 and blocks the pressure relief channel 152. The preparation material of pressure release upper cover 141 and pressure release lower cover 142 can be plastics, pressure release upper cover 141 and pressure release lower cover 142 adopt the mode of dismantling the connection to be connected, the connected mode of pressure release upper cover 141 and pressure release lower cover 142 can be threaded connection, butt or overlap joint etc. and, do not adopt the sealing member to seal between pressure release upper cover 141 and the pressure release lower cover 142, like this, can make the space that the air current of allowwing to pass through exist between the two, can follow the discharge between pressure release upper cover 141 and the pressure release lower cover 142 after the air current gets into the pressure release chamber promptly.

The lateral wall of pressure release seat 150 is provided with joint groove 155, this mounting hole be provided with joint groove 155 complex arch, pressure release seat 150 carries out the joint through joint groove 155 and arch with the mounting hole, inserts in the mounting hole with pressure release seat 150 to make joint groove 155 joint in the bellied edge of mounting hole.

The pressure relief seat 150 is made of rubber, and further can be made of silicon rubber; thus, when the pressure relief seat 150 is installed, the pressure relief seat 150 can be tightly fitted and connected with the pressure relief seat mounting hole only by inserting the pressure relief seat 150 into the pressure relief seat mounting hole.

The middle part of the pressure relief seat 150 is provided with a pressure relief channel 152, a stop piece 151 for closing the pressure relief channel is further arranged in the pressure relief channel 152, and the stop piece 151 is provided with a linear notch 154 communicated with the pressure relief channel 152.

It is understood that a cutout 154 is formed in the stopper piece 151 of the pressure relief passage 152, and preferably, a straight cutout 154 is formed as a pressure relief hole which communicates with the pressure relief passage 152, the pressure relief passage 152 has an exhaust port 153, and the pressure relief valve body 130 is disposed above the exhaust port 153. Therefore, the air flow can be uniformly discharged, the uniformity of air discharge is improved, the smooth air flow is ensured during the pressure relief work, and the phenomenon of poor air discharge effect or air leakage during use caused by overlarge cut can be avoided.

The pressure relief valve body 130 is a gravity valve, which may also be called a pressure relief ball, and is movably accommodated in the pressure relief cavity, and the pressure relief valve body 130 moves upward under the action of air pressure to open the pressure relief channel 152 or block the pressure relief channel 152 under the action of gravity. The outer diameter of the pressure relief ball is larger than the outer diameter of the pressure relief passage 152, i.e., the outer diameter of the pressure relief ball is larger than the diameter of the exhaust port 153.

On one hand, the pressure relief valve body 130 can contact with the exhaust port 153 by means of self gravity and completely attach to the exhaust port 153 of the pressure relief channel 152, and the diameter of the exhaust port 153 is smaller than the outer diameter of the pressure relief ball, so that the pressure relief channel 152 can be plugged, and the product is in a sealed state; on the other hand, when the pressure in the cooker rises, the pressure will jack up the pressure relief valve 130, so that the pressure relief valve 130 is separated from the air outlet 153, and the pressure relief channel 152 is opened, so that the air flow can be discharged through the notch 154, the pressure relief channel 152 and the pressure relief cavity, thereby avoiding the disadvantage that the second container cover body 120 moves or pops up, and ensuring the pressure balance inside and outside the cooker.

The container cover 1 further comprises a sealing ring 160, and the sealing ring 160 is arranged on the inner side of the cover body; the sealing ring 160 may be made of rubber; the sealing ring 160 may be fitted over the outside of the second container cover body 120.

A plurality of outwardly extending raised ribs 161 may be provided on the outer side wall of the sealing ring 160, and the raised ribs 161 are arranged at intervals; the raised ribs 161 may be integrally formed with the seal ring 160. For example, the number of the protruding ribs 161 is two, the lower side wall of one protruding rib 161 is abutted to the top wall of the container body 2, and the side wall of the other protruding rib 161 is abutted to the inner side wall of the container body 2, so that the double water-blocking effect can be achieved, and the sealing effect can be improved.

The heat-preservation lifting pot can be assembled in the following mode:

providing a first container cover body 110, a second container cover body 120, a pressure relief valve body 130, a pressure relief upper cover 141, a pressure relief lower cover 142, a pressure relief base 150, a sealing ring 160, a container body 2, a pot opening base 3 and a handle 4;

firstly, mounting a pot mouth seat 3 at a set position of a container body 2, and mounting a handle 4 on the pot mouth seat 3;

placing the pressure relief valve body 130 into the pressure relief upper cover 141, inverting the pressure relief upper cover, mounting the pressure relief lower cover 142 onto the pressure relief upper cover 141, so that the pressure relief valve body 130 is fixed in an accommodating cavity formed by the pressure relief upper cover 141 and the pressure relief lower cover 142, and after the three components are combined into one assembly, fixing the assembly in a through groove of the first container closure body 110 by screwing threads to obtain a first container closure body assembly (outer cover assembly);

the pressure relief base 150 is installed in the installation hole of the second container cover body 120, wherein the stopper piece 151 of the pressure relief base 150 is provided with a linear notch 154, the linear notch 154 is a pressure relief hole, and the pressure relief base 150 is also provided with a pressure relief channel 152 communicated with the linear notch 154, so that smooth air flow can be ensured during pressure relief work; then, the packing 160 is mounted to a predetermined position of the second container cover 120 to obtain a second container cover assembly (inner cap assembly);

after the second container cover body assembly is secured to the pot opening, the first container cover body assembly is screwed to the pot opening seat 3, after the second container cover body assembly is screwed to the set position, the step plane on the inner side of the first container cover body 110 can be pressed to the top end of the second container cover body 120 assembly, so that the edge position of the pot opening cannot cause liquid leakage in the pot under the sealing effect of silica gel, meanwhile, the pressure relief valve body 130 can be completely attached to the exhaust port 153 of the pressure relief channel 152 of the pressure relief seat 150 by means of self gravity, when hot liquid is contained in the pot, when the pressure in the pot rises due to shaking of the container body 2, the pressure can jack up the pressure relief valve body 130, air flow is discharged through the linear notch 154 and the pressure relief channel 152 of the pressure relief seat 150, the defect that the second container cover body 120 moves upwards or pops up is avoided, and the balance of the internal pressure and the external.

As can be seen from the above description, in the above embodiments of the present application, the second container cover body 120 is added at the pot opening, the edge of the second container cover body 120 is provided with the sealing ring 160, the sealing ring 160 is designed in a multiple water-blocking structure, at least two sides and the top block water, the middle of the second container cover body 120 is provided with the pressure relief seat 150, the pressure relief seat 150 is provided with the straight notch 154 and the pressure relief channel 152, the first container cover body 110 is screwed on the pot opening seat 3, after the first container cover body 110 is screwed to a predetermined position, the step plane inside the first container cover body 110 is pressed on the top of the second container cover body 120 to ensure no up-and-down shaking, i.e. to ensure that the liquid will not leak at the pot opening edge, the middle of the first container cover body 110 is provided with the pressure relief valve body 130 and the pressure relief upper cover 141 and the lower cover 142, which can be combined into a component to ensure, the upper pressure-releasing cover 141 is screwed in the middle of the first container cover body 110, so that when hot liquid in the pot shakes, the pressure in the pot rises, and when the pressure is high to a certain degree, the gravity of the pressure-releasing ball is overcome, the hot liquid is automatically discharged from the linear notch 154, the atmospheric pressure in the pot is kept consistent with the atmospheric pressure outside the pot, and the defects that the sealing cover moves upwards due to overlarge pressure in the pot to cause leakage and the like are avoided.

In other embodiments, when the container cover is a single container cover, that is, the container cover 1 has only the first container cover 110 and is not provided with the second container cover 120. At this time, an installation bulge can be extended from the bottom surface of the first container cover body, and an installation through groove penetrating through the installation bulge and the top surface of the first container cover body is arranged; or a step-shaped installation through groove is directly arranged in the middle of the first pot body. The upper part of the stepped installation through groove is used for installing a pressure relief upper cover and a pressure relief lower cover, the lower part of the installation through groove is used for installing a pressure relief seat, similarly, the pressure relief upper cover, the pressure relief seat and the installation through groove jointly enclose a pressure relief cavity, the pressure relief valve body is accommodated in the pressure relief cavity, and the pressure relief valve body can movably block or open a pressure relief channel; a seal ring is provided inside the first container lid body, and the seal ring abuts against the container body.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A container cover comprises a cover body and a pressure relief mechanism arranged on the cover body, and is characterized in that an installation through groove (140) is arranged on the cover body;

the pressure relief mechanism comprises a pressure relief upper cover (141), a pressure relief valve body (130) and a pressure relief seat (150);

the pressure relief upper cover (141) covers the mounting through groove (140), the pressure relief base (150) is hermetically mounted in the mounting through groove (140), and the pressure relief upper cover (141), the pressure relief base (150) and the mounting through groove (140) jointly enclose a pressure relief cavity;

the pressure relief seat (150) is provided with a pressure relief channel (152) communicated with the pressure relief cavity;

the pressure relief valve body (130) is accommodated in the pressure relief cavity and movably blocks or opens the pressure relief channel (152).

2. The container cap according to claim 1, wherein the pressure-relief upper cap (141) is screw-coupled to the mounting through groove (140).

3. The container cap according to claim 1, wherein the pressure relief valve body (130) is a gravity valve and is movably accommodated in the pressure relief cavity, and the pressure relief valve body (130) moves upward under the action of air pressure to open the pressure relief channel (152) or block the pressure relief channel (152) under the action of gravity.

4. The container cover according to claim 1, wherein the pressure relief mechanism further comprises a pressure relief lower cover (142) located in the pressure relief cavity, the pressure relief lower cover (142) is sleeved on the lower end of the pressure relief upper cover (141), the pressure relief channel (152) is located in the pressure relief lower cover (142), and the pressure relief valve body (130) can be supported on the top end of the pressure relief lower cover (142) and blocks the pressure relief channel (152).

5. The container cap according to claim 1, wherein the inner side of the cap body is further provided with a sealing ring (160), and the outer side wall of the sealing ring (160) is provided with at least two outwardly extending raised ribs (161).

6. The container lid according to any one of claims 1 to 4, wherein the lid body comprises a first container lid body (110) and a second container lid body (120), the first container lid body (110) being disposed outside the second container lid body (120), the first container lid body (110) being provided with a through slot therethrough, the second container lid body (120) being provided with a mounting hole communicating with the through slot, the through slot and the mounting hole together forming the mounting through slot (140);

the pressure relief seat (150) is installed in the installation hole, and the pressure relief upper cover (141) and the pressure relief valve body (130) are installed in the through groove.

7. The container cover according to claim 6, wherein the outer side wall of the pressure relief base (150) is provided with a catching groove (155), and the pressure relief base (150) is inserted into the mounting hole and the catching groove (155) is caught at the edge of the mounting hole.

8. The container cover according to claim 6, wherein the pressure relief channel (152) penetrates the middle part of the pressure relief seat (150), a stop piece (151) for closing the pressure relief channel (152) is further arranged in the pressure relief channel (152), and a linear notch (154) communicated with the pressure relief channel (152) is arranged on the stop piece (151).

9. The container cover according to claim 6, wherein the outer side of the second container cover body (120) is sleeved with a sealing ring (160), and the outer side wall of the sealing ring (160) is provided with at least two protruding ribs (161) extending outwards.

10. A container comprising a container body (2), characterized in that it comprises a container lid (1) according to any one of claims 1 to 9.

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