CN114668234A - a lunch box - Google Patents

Abstract

The invention provides a lunch box, comprising: a base; a cover assembled on the base; the steaming rack is positioned in the inner space of the lunch box and supported on the base; the connecting part is movably connected with the cover body and comprises a second connecting piece, the second connecting piece is arranged on the cover body, and the second connecting piece is provided with a first position connected with the steaming frame and a second position mutually separated from the steaming frame. When the user uses the steaming rack, the steaming rack is connected with the steaming rack through the second connecting piece, the steaming rack and the cover body can be taken down together when the cover body is taken down, the steaming rack is placed at a proper position, then the second connecting piece is moved to a second position to enable the cover body to be separated from the steaming rack, and the user can be prevented from directly contacting the steaming rack to take and place.

Description

a lunch box

technical field

The invention relates to the technical field of lunch box structures, in particular to a lunch box.

Background technique

A lunch box is a common household utensil. The lunch box usually includes a cover and a base. The cover and the base are connected by a snap assembly arranged outside the lunch box, and a space for accommodating food is formed between the cover and the base.

Lunch boxes on the market usually have a heating function, and some lunch boxes have steaming racks so that there are multiple layers of space in the lunch boxes. However, when the user opens the lunch box, since the steaming rack is located inside the lunch box, the steaming rack is also heated and heated while the food is heated. Therefore, after the user unlocks the cover of the lunch box, the steaming rack with a higher temperature cannot be directly removed.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the temperature of the steaming rack is high and inconvenient to extract after the lunch box is opened, thereby providing a lunch box.

A lunch box including:

base;

a cover assembled on the base;

a steaming rack, located in the inner space of the lunch box, and the steaming rack is supported on the base;

The connecting part is movably connected with the cover body, the connecting part includes a second connecting piece, the second connecting piece is arranged on the cover body, and the second connecting piece has a first connecting piece connected with the steaming rack a position, and a second position mutually disengaged from the steam rack.

The connecting portion is rotatably connected in the cover body.

The lunch box also includes:

The trigger key is arranged on the cover body, and the connecting portion is located on the movement path of the trigger key.

The lunch box also includes:

The extraction part is arranged on the steaming rack, the part of the extraction part facing the cover body is provided with a matching groove, the side wall of the matching groove is provided with an extraction protrusion, and the extraction protrusion is located on the second on the motion path of the connector.

The side of the second connecting piece facing the extraction protrusion is provided with an extraction limiting groove, and when the second connecting piece is in the first position, the extraction limiting groove fits on the extraction protrusion.

The extraction limit groove includes:

An extraction limit end is supported below the extraction protrusion.

The connecting part also includes:

The first connector has a first state of being connected to the base, and a second state of being disconnected from the base.

The connector also includes:

a transmission end, the transmission end is rotatably connected to the cover body, and the transmission end is in contact with the trigger key; the first connection piece and the second connection piece are both arranged on the transmission end .

The lunch box also includes:

a snap seat, arranged on the base;

The card slot is arranged on the buckle seat, and the card slot forms an opening on the side surface of the buckle seat.

The snap seat includes:

a limiting part, arranged above the card slot;

a guide part is arranged below the card slot, the distance between the limit part and the guide part constitutes the card slot, the guide part extends to the outside of the card slot, and the extension of the guide part The direction is parallel to the movement path of the first link.

The cover body includes:

The handle is provided with an air guide channel, one end of the air guide channel is connected to the inner space of the lunch box, and the other end of the air guide channel forms an opening on the handle.

The opening of the air guide channel is provided with a blocking piece, and the blocking piece can open or close the opening of the air guide channel.

The opening of the air guide channel faces the side surface of the cover body, and the opening is arranged towards the inner wall of the air guide channel.

The trigger key is slidably connected to the opening of the air guide channel, at least part of the connecting portion is located in the air guide channel, and the connecting portion extends to the sliding path of the trigger key.

The connecting portion extends between the trigger key and the inner wall of the air guide channel, and the trigger key is arranged on the connecting portion.

An elastic member is provided between the connecting portion and the inner wall of the air guide channel.

The opening of the air guide channel is provided with a notch portion, the blocking piece is arranged on the trigger key, and the blocking piece covers the notch portion.

The cover body is provided with a groove portion, and the handle is provided in the groove portion.

The technical scheme of the present invention has the following advantages:

1. The present invention provides a lunch box, comprising: a base; a cover body, assembled on the base; a steaming rack, located in the inner space of the lunch box, and the steaming rack is supported on the base; a connecting part, and the cover The body is movably connected, the connecting part includes a second connecting piece, the second connecting piece is arranged on the cover body, the second connecting piece has a first position connected with the steaming rack, and is connected with the The second position in which the steaming racks are disengaged from each other.

When the user uses the steaming rack, it is connected with the steaming rack through the second connecting piece, and the steaming rack and the lid can be removed together with the cover body at the same time. After the steaming rack is placed in a suitable position, the second connection is made By moving the component to the second position, the cover body is disengaged from the steaming rack, which can prevent the user from directly touching the steaming rack for picking and placing. The trigger button is arranged on the cover body, which will not increase the volume of the lunch box in the length direction or width direction. For most lunch boxes on the market, there is a handle part on the cover body of the lunch box, so it is suitable for the cover body. The improvement of the handle, which solves the occupation of the length and width of the lunch box by the existing snap-on connection components, can also play the role of connecting the cover and the base, and the improvement of the handle part is matched with the structure inside the lunch box. The improvement will not change the shape of the lunch box, making the shape of the lunch box more regular and reducing the volume occupied by the lunch box.

2. The lunch box provided by the present invention further comprises: an extracting part, which is arranged on the steaming rack, the part of the extracting part facing the cover body is provided with a matching groove, and the side wall of the matching groove is provided with a matching groove. The extraction protrusion is located on the movement path of the second connecting member.

The extraction part is arranged on the side of the steaming rack which is beyond the cover body, so that the connection part and the extraction part can be connected more conveniently. The opening of the matching groove can pass through at least the second connecting piece, so that the second connecting piece can freely enter and exit when the steaming rack is disengaged. The extraction protrusion can form an abutting and matching relationship with the second connecting piece during the process of turning the second connecting piece to the left or to the right, or the extraction protrusion is located on the movement path of the second connecting piece from the matching groove, preventing the The second connecting piece leaves, thereby forming the cooperation of the second connecting piece with the steaming rack.

3. In the lunch box provided by the present invention, the connecting part further comprises: a first connecting piece, the first connecting piece has a first state of being connected to the base, and a second state of being disconnected from the base.

Since the connecting part is in contact with the trigger key, the user can drive the connecting part to move by pressing the trigger key, and the connecting part and the cover body are movably connected, and can move relative to the cover body under the push of the trigger key , thereby driving the first connecting piece to move between the first state and the second state, so as to control the connection between the cover and the base by pressing the button.

4. In the lunch box provided by the present invention, the connecting part further comprises: a transmission end, the transmission end is rotatably connected to the cover body, and the transmission end is in abutment with the trigger key; The second connecting pieces are all arranged on the transmission end.

When the trigger key controls the movement of the transmission end, the first connecting piece and the second connecting piece can act simultaneously. User-friendly control.

5. The lunch box provided by the present invention, the cover body comprises: a handle, an air guide channel is arranged in the handle, one end of the air guide channel is connected to the inner space of the lunch box, and the other end of the air guide channel is in the inner space of the lunch box. An opening is formed on the handle.

The air guide channel can release the steam in the lunch box and prevent the steam from condensing in a large amount in the lunch box to generate more condensed water.

6. In the lunch box provided by the present invention, the trigger key is slidably connected to the opening of the air guide channel, at least part of the connecting portion is located in the air guide channel, and the connecting portion extends to the trigger key on the sliding path.

The sliding-connected trigger key can have a relatively accurate movement path, so that the trigger key can be more easily pressed by the user to the preset position and return to the original position

7. In the lunch box provided by the present invention, an elastic member is provided between the connecting portion and the inner wall of the air guide channel.

On the one hand, the elastic member can provide a certain resistance force when the user presses the trigger key to increase the user's hand feeling, and on the other hand, it can also protect the trigger key to prevent the user from pressing too hard. At the same time, after the user removes the pressing force, the trigger key can be pushed back to the initial position through the elastic recovery ability of the elastic member. Specifically, the elastic member is a conical spring.

8. In the lunch box provided by the present invention, the opening of the air guide channel is provided with a notch portion, the blocking piece is provided on the trigger key, and the blocking piece covers the notch portion.

Since the trigger key is blocked on the opening, the notch can expand the opening and play a role in helping to release the pressure inside the lunch box. Specifically, the baffle is obliquely arranged on the notch to form an inclined guide surface for guiding the gas in the air guide channel to flow to the outside of the lunch box.

9. In the lunch box provided by the present invention, the cover body is provided with a groove portion, and the handle is provided in the groove portion.

The groove part can reduce the space occupied by the handle protruding to the outside of the lunch box, and the inner side of the groove has a circular arc surface, when the gas in the gap flows out, it can guide the hot air to diffuse around, preventing the hot air from forming a directional impact airflow.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the perspective view of the lunch box structure of the present invention;

Figure 2 is an exploded view of the lunch box structure;

3 is a sectional view showing a closed state of the lunch box;

Fig. 4 is a schematic diagram showing the mutual disengagement state of the second connecting member and the extraction portion in Fig. 3;

5 is a cross-sectional view showing the structure of a steaming rack;

FIG. 6 is a schematic diagram showing the state of cooperation between the first connector and the buckle seat by rotating the angle of the lunch box on the basis of FIG. 3;

7 is a schematic diagram of a state in which the trigger key is pressed on the basis of FIG. 6 so that the second connector is matched with the extraction portion, and the first connector is disengaged from the buckle seat at the same time;

FIG. 8 is an enlarged view showing a state in which the second connector is matched with the extraction part by pressing the trigger key;

FIG. 9 is a schematic diagram showing the disengagement state of the first connector and the buckle seat;

Figure 10 is an exploded view showing the base structure;

Fig. 11 is a perspective view showing the structure of the connecting portion;

Figure 12 is a perspective view of the cover structure after removing the trigger key;

FIG. 13 is a perspective view showing the structure of a trigger key.

Description of reference numbers:

1. Cover body; 11. Carrying handle; 111. Air guide channel; 112. Rotating shaft; 113. Notch part; 12. First connecting piece; 13. Second connecting piece; Bit end; 14, transmission end; 141, guide hole; 15, trigger key; 151, baffle plate; 152, matching buckle; 16, elastic part; 17, elastic limit groove; 18, groove part; 2, base ;21, buckle seat; 22, card slot; 23, limit part; 24, guide part; 25, inner shell; 26, outer shell; 27, assembly space; 3, steaming rack; 31, vent hole; 4, Extracting part; 41. Matching groove; 42. Extracting protrusion; 43. Holding part.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

This embodiment provides a lunch box, as shown in Figures 1 and 2, comprising: a base 2; a cover 1 assembled on the base 2; a trigger key 15 arranged on the cover 1; a connecting portion, It is movably connected in the cover body 1 , the connecting portion is in contact with the trigger key 15 , and the connecting portion includes a first connecting piece 12 , and the first connecting piece 12 has a first state of being connected to the base 2 , and a second state in which the base 2 is disengaged from each other. The trigger key 15 is arranged on the cover body 1, which will not increase the volume of the lunch box. Since the connecting part is in contact with the trigger key 15, the user can drive the connecting part to move by pressing the trigger key 15, and the connecting part and the cover can move. The body 1 is movably connected, and can move relative to the cover body 1 under the push of the trigger key 15, thereby driving the first connecting piece 12 to move between the first state and the second state, so as to control the cover body 1 through the keys. Connection to base 2.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 4 , FIG. 8 , and FIG. 11 , the connecting portion is rotatably connected in the cover body 1 . Since the first connecting piece 12 is a part of the connecting part, when the connecting part rotates, the first connecting piece 12 also rotates, and the first connecting piece 12 has a certain distance from the rotation center of the connecting part, so the first connecting piece 12. The height will change during the rotation, so that in the process of rotating to the first state of being connected with the base 2, not only the cover body 1 and the base 2 can be connected, but also the cover can be connected when the height changes during the connection process. The body 1 and the base 2 are tightened to achieve further fastening. Specifically, a rotating shaft 112 protrudes from the connecting portion, and the rotating shaft 112 is rotatably connected to the cover body 1 . As an alternative embodiment, a rotating shaft 112 protrudes from the cover body 1 , and the connecting portion is rotatably connected to the rotating shaft 112 .

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 2 , FIG. 9 , and FIG. 10 , the lunch box further includes: a snap seat 21 , which is arranged on the base 2 ; a snap slot 22 , It is disposed on the buckle seat 21 , and the locking slot 22 forms an opening on the side of the buckle seat 21 . Specifically, from the perspective of FIG. 9 , the card slot 22 is located near the top of the buckle seat 21 , and the card slot 22 forms an opening on the left side of the buckle seat 21 for the first connector 12 to enter.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 2 and FIG. 9 , the buckle seat 21 includes: a limiting portion 23 , which is arranged above the locking slot 22 ; a guide portion 24 , It is located below the card slot 22 , the distance between the limiting portion 23 and the guide portion 24 constitutes the card slot 22 , the guide portion 24 extends to the outside of the card slot 22 , and the guide The extending direction of the portion 24 is parallel to the movement path of the first connecting member 12 . Specifically, referring to FIGS. 7 to 9 , the surfaces of the guide portion 24 and the limiting portion 23 facing the first connector 12 are both arc-shaped surfaces, and the arc-shaped surface of the guide portion 24 is recessed downward in the direction away from the card slot 22 . When the first connector 12 is close to the opening of the card slot 22 , the guide portion 24 can play a guiding role. The arc-shaped surface on the limiting portion 23 is recessed upward in the direction away from the card slot 22 . After the first connecting piece 12 enters the locking slot 22 , the arc-shaped surface on the limiting portion 23 collides with the first connecting piece 12 and is connected to the first connecting piece 12 . During the process of rotating and entering, the first connecting piece 12 is pulled upward by the first connecting piece 12, so that the force is transmitted to the base 2 through the buckle seat 21, and the cover body 1 and the base 2 are further fastened.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 2 , FIG. 3 , FIG. 6 , and FIG. 7 , the lunch box further includes: a steaming rack 3 , which is located in the inner space of the lunch box, and the The steaming rack 3 is supported on the base 2 . The steaming rack 3 can separate the rice from the inner space, and utensils can be placed in the upper and lower spaces of the steaming rack 3 to accommodate food. Specifically, as shown in FIG. 2 , FIG. 3 , and FIG. 5 , the steaming rack 3 is distributed with a plurality of ventilation holes 31 . As an alternative embodiment, the steaming rack 3 is provided with a limit pit suitable for limiting the placement of utensils. The steaming rack 3 is supported on the base 2 and can be installed when the user needs it. When the steaming rack 3 is not needed, the steaming rack 3 can be removed.

The structure of the base 2 is shown in FIG. 10 . The base 2 includes an inner shell 25 and an outer shell 26 that are adapted to each other. The inner shell 25 is embedded in the outer shell 26 , and as shown in FIGS. 3 , 6 and 7 , the inner shell 25 An assembly space 27 is formed between it and the housing 26 . Functional components such as a control panel and a heating assembly of the lunch box can be arranged in the assembly space 27 . As shown in FIG. 1 , a display screen can be arranged outside the base 2 , and the related control components and control circuits of the display screen are also arranged in the assembly space 27 .

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 2 , FIG. 7 , FIG. 8 , and FIG. 11 , the connecting portion further includes: a second connecting member 13 , which is provided on the cover body 1 . Above, the second connecting piece 13 has a first position connected with the steaming rack 3 and a second position disconnected from the steaming rack 3 . When the user uses the steaming rack 3, the second connecting piece 13 is connected to the steaming rack 3, the steaming rack 3 can be removed together with the lid body 1 at the same time as the cover body 1 is removed, and the steaming rack 3 can be placed in a suitable position Afterwards, the second connecting member 13 is moved to the second position to disengage the cover body 1 from the steaming rack 3, which can prevent the user from directly touching the steaming rack 3 for picking and placing.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 7 , FIG. 8 , and FIG. 11 , the connecting portion further includes: a transmission end 14 , and the transmission end 14 is rotatably connected to the cover body 1 , and the transmission end 14 is in contact with the trigger key 15 ; the first connecting piece 12 and the second connecting piece 13 are both arranged on the transmission end 14 . When the trigger key 15 controls the transmission end 14 to move, the first connecting member 12 and the second connecting member 13 can act simultaneously. User-friendly control. As an alternative embodiment, the first connecting member 12 and the second connecting member 13 are controlled by different mechanisms respectively, and the user can control the actions of the first connecting member 12 and the second connecting member 13 respectively during use.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 4 , FIG. 6 , FIG. 7 , and FIG. 8 , when the first connecting member 12 is in the first state, the second connecting member 13 In the first position, when the first connector 12 is in the second state, the second connector 13 is in the second position.

The specific control process is as follows: the user can simultaneously control the movement of the first connecting member 12 and the second connecting member 13 through the trigger key 15 . Specifically, as shown in FIG. 4 and FIG. 6 , the cover body 1 is assembled on the base 2 , at this time the second connecting piece 13 is in a disengaged state from the steaming rack 3 , and the first connecting piece 12 is matched with the clip of the buckle seat 21 . In the groove 22 , the cover body 1 and the base 2 are connected to each other. At this time, the cover body 1 and the base 2 cannot be separated by pulling the handle 11 . On the basis of Fig. 6, when the trigger key 15 is pressed, as shown in Fig. 7 and Fig. 8, the transmission end 14 is pressed by the trigger key 15. Since the transmission end 14 is rotatably connected to the cover body 1, the transmission end 14 is connected to, The first connecting piece 12 and the second connecting piece 13 are located at the two ends of the rotation center of the transmission end 14, respectively. In the state of FIG. 8, the transmission end 14 is pushed to the right, and both the first connecting piece 12 and the second connecting piece 13 occur. Turn to the left. After the first connector 12 is rotated to the left, it is disengaged from the slot 22 of the buckle seat 21, while the second connector 13 is rotated to the left and then connected to the steaming rack 3. At this time, the user keeps pressing the trigger button. The state of 15 can be pulled up, and the lid body 1 and the steaming rack 3 can be removed together.

Further, when the user needs to fit the cover body 1 on the base 2, there are two cases according to whether the user needs the steaming rack 3 or not. When the user needs the steaming rack 3, first place the food in the base 2 as shown in Figure 2, and then put another food on the steaming rack 3. The user first connects the second connection in the state shown in Figure 4. The component 13 is aligned and inserted into the matching groove 41 of the steaming rack 3, and then the trigger button 15 is pressed. At this time, the second connecting piece 13 is rotated to the left to complete the connection between the second connecting piece 13 and the steaming rack 3 as shown in Figures 7 and 8 status. After the lid body 1 is connected to the steaming rack 3, keep pressing the trigger button 15, lift the lid body 1 together with the steaming rack 3 and place it on the base 2, and release the trigger button 15 at this time, as shown in Figure 7, the first After the trigger key 15 is released, the connector 12 rotates to the right from the outside of the card slot 22, that is, it rotates to the inside of the card slot 22 to realize the connection and cooperation of the cover 1 and the base 2. At the same time, the second connector 13 also rotates to the right. The state of FIG. 3 , FIG. 4 , and FIG. 6 is separated from the steaming rack 3 . When the user does not need the steaming rack 3, first place the food in the base 2 as shown in Figure 2, then keep pressing the trigger button 15, lift the cover 1 together with the steaming rack 3 and place it on the base 2, this When the trigger key 15 is released, as shown in FIG. 7 , after the trigger key 15 is released, the first connector 12 rotates to the right from the outside of the card slot 22 , that is, it rotates to the inside of the card slot 22 to realize the connection between the cover body 1 and the base 2 . Connection mate.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIGS. 5-7 , the lunch box further includes: an extraction part 4 , which is arranged on the steaming rack 3 , and the extraction part 4 faces the The part of the cover body 1 is provided with a matching groove 41 , and an extraction protrusion 42 is provided on the side wall of the matching groove 41 , and the extraction protrusion 42 is located on the moving path of the second connecting piece 13 . The extraction part 4 is provided on the side of the steaming rack 3 which is beyond the cover body 1 , so that the connection part can be connected with the extraction part 4 more conveniently. The opening of the matching groove 41 can at least pass through the second connecting piece 13 , so that the second connecting piece 13 can freely enter and exit when the steaming rack 3 is disengaged. The extraction protrusion 42 can form an abutting and mating relationship with the second connecting piece 13 during the process of turning the second connecting piece 13 to the left or to the right, or the extraction protrusion 42 can be located in the second connecting piece 13 to be disengaged from the matching groove. The movement path of 41 prevents the second connecting piece 13 from leaving, thereby forming the cooperation between the second connecting piece 13 and the steaming rack 3 .

Specifically, as shown in FIG. 5 , the extracting part 4 is perpendicular to the steaming rack 3 and extends above the steaming rack 3 , and at least one side of the left and right sides of the extracting part 4 extends a holding part 43 , and the holding part 43 is convenient for the user to grasp and move the steaming Rack 3, the user can directly grab and move the steaming rack 3 after the steaming rack 3 is cooled down, or can also use auxiliary tools such as heat insulation clips to clamp and move the steaming rack 3.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 4 and FIG. 8 , the side of the second connecting member 13 facing the extraction protrusion 42 is provided with an extraction limiting groove 131 . When the second connecting member 13 is in the first position, the extraction limiting groove 131 fits on the extraction protrusion 42 .

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 4 and FIG. 8 , the extraction limit groove 131 includes: an extraction limit end 132 , and the extraction limit end 132 is supported on the Underneath the extraction bump 42 . As an alternative embodiment, from the perspective of FIG. 4 , the extraction limiting groove 131 is omitted, and only the extraction limiting end 132 is retained, so that the second connecting member 13 is L-shaped.

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 1 , FIG. 4 , FIG. 8 , and FIG. 12 , the cover body 1 includes a handle 11 , and the handle 11 is provided with a guide An air channel 111 , one end of the air guide channel 111 communicates with the inner space of the lunch box, and the other end of the air guide channel 111 forms an opening on the handle 11 . The air guide channel 111 can release the steam in the lunch box and prevent the steam from condensing in a large amount in the lunch box to generate more condensed water.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 12 and FIG. 13 , the opening of the air guide channel 111 is provided with a blocking piece 151 , and the blocking piece 151 can open or close the The opening of the air guide channel 111 . Specifically, the blocking piece 151 is made of a flexible material such as rubber, or the blocking piece 151 is made of memory metal. The flexible material baffle 151 can be pushed open when the internal space pressure of the lunch box increases, and the memory metal is selected to be a temperature-sensitive metal, which can restore its own shape after being heated, so that the baffle 151 can have the function of opening and closing the opening. .

On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in FIG. 4 and FIG. 8 , the opening of the air guide channel 111 faces the side surface of the cover body 1 , so that the opening faces the air guide The inner wall of the channel 111 is provided. Specifically, as shown in FIG. 4 and FIG. 8 , the side guides the air passage 111 to exhaust to the surrounding of the cover body 1 , so as to avoid the air guide 111 exhausting directly above the upper part and affecting the user. In this embodiment, from the perspective of FIG. 4 and FIG. 8 , the air guide channel 111 exhausts toward the left side, and the exhaust direction is parallel to the top of the cover body 1 . As an alternative embodiment, the air guide channel 111 exhausts to the right. As another alternative embodiment, the air guide channel 111 is inclined to exhaust air in the upper left or upper right direction.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 4 and FIG. 8 , the trigger key 15 is slidably connected to the opening of the air guide channel 111 , and at least part of the connection portion is located at the opening of the air guide channel 111 . Inside the air guide channel 111 , and the connecting portion extends to the sliding path of the trigger key 15 . The slidingly connected trigger key 15 can have a relatively accurate movement path, so that the trigger key 15 can be more easily pressed by the user to the preset position and restored to the original position.

Specifically, the outer circumference of the trigger key 15 and the inner wall of the air guide channel 111 are provided with sliding rails and sliding grooves that are adapted to each other. As an alternative embodiment, a clearance fit is provided between the trigger key 15 and the inner wall of the air guide channel 111 .

On the basis of the above embodiment, as a further limited embodiment, the connecting portion extends between the trigger key 15 and the inner wall of the air guide channel 111 , and the trigger key 15 is provided on the connecting portion . When the trigger key 15 slides toward the inner wall of the air passage 111 , the connecting portion is driven to rotate. Specifically, as shown in FIG. 4 , FIG. 11 , and FIG. 13 , the transmission end 14 of the connecting portion is provided with a guide hole 141 , and the side of the trigger key 15 facing the transmission end 14 is provided with a matching buckle 152 . The specific structure of the mating buckle 152 in this embodiment is an expansion joint. As an alternative embodiment, the trigger key 15 is connected to the transmission end 14 by bolts.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIGS. 4 and 8 , an elastic member 16 is provided between the connecting portion and the inner wall of the air guide channel 111 . On the one hand, the elastic member 16 can provide a certain resistive force when the user presses the trigger key 15 to increase the user's hand feeling, and on the other hand, it can also protect the trigger key 15 to prevent the user from pressing too hard. At the same time, after the user removes the pressing force, the trigger key 15 can be pushed back to the initial position through the elastic recovery capability of the elastic member 16 . Specifically, the elastic member 16 is a conical spring. As an alternative embodiment, the elastic member 16 is a common spring. As another alternative embodiment, a torsion spring is provided between the connection part and the inner wall of the air guide channel 111 , and the torsion spring is installed at the rotating shaft 112 of the connection part.

Specifically, as shown in FIG. 8 , the trigger key 15 is provided with an elastic limit groove 17 . From the perspective of FIG. 8 , the elastic limit groove 17 is located on the right side of the elastic limit groove 17 , and the elastic member 16 is sandwiched between the trigger key 15 Between it and the inner wall of the air guide channel, from the perspective of FIG. 8 , the trigger key 15 is pressed to the right, so that the elastic member 16 is elastically deformed and compressed to the right.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 4 , FIG. 8 , and FIG. 12 , the opening of the air guide channel 111 is provided with a notch 113 , and the blocking piece 151 is provided on the on the trigger key 15 , and the blocking plate 151 covers the notch portion 113 . Since the trigger key 15 is blocked on the opening, the notch portion 113 can expand the opening and play a role in helping to release the pressure inside the lunch box. Specifically, the blocking piece 151 is obliquely arranged on the notch portion 113 to form an inclined guide surface for guiding the gas in the air guide channel 111 to flow to the outside of the lunch box.

On the basis of the above embodiment, as a further limited embodiment, as shown in FIG. 1 , FIG. 3 , and FIG. 12 , the cover body 1 is provided with a groove portion 18 , and the handle 11 is provided in the groove portion 18 . in the groove 18. The groove portion 18 can reduce the space occupied by the handle 11 protruding to the outside of the lunch box, and the inner side of the groove has a circular arc surface. When the gas in the gap flows out, it can guide the hot air to diffuse around, preventing the hot air from forming a directional impact airflow.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (18)

1. A lunchbox, comprising:

a base (2);

a cover (1) assembled on the base (2);

the steaming rack (3) is positioned in the inner space of the lunch box, and the steaming rack (3) is supported on the base (2);

the connecting portion, with lid (1) swing joint, connecting portion include second connecting piece (13), second connecting piece (13) are located on lid (1), second connecting piece (13) have with evaporate the first position that frame (3) are connected, and with evaporate the second position that frame (3) throw off each other.

2. A cutlery box according to claim 1, characterized in that the connection is pivotally connected in the cover (1).

3. The lunch box according to claim 1 or 2, further comprising:

the trigger key (15) is arranged on the cover body (1), and the connecting part is positioned on a movement path of the trigger key (15).

4. The lunchbox of claim 3, further comprising:

extraction portion (4), locate evaporate on the frame (3), extraction portion (4) orientation the position of lid (1) is equipped with cooperation groove (41), be equipped with on cooperation groove (41) lateral wall and draw protruding (42), it is located to draw protruding (42) on the motion path of second connecting piece (13).

5. Lunch box according to claim 4, characterised in that the side of the second connecting piece (13) facing the extraction projection (42) is provided with an extraction limiting groove (131), the extraction limiting groove (131) fitting over the extraction projection (42) when the second connecting piece (13) is in the first position.

6. The lunch box according to claim 5, wherein the extraction limiting groove (131) comprises:

an extraction limiting end (132), the extraction limiting end (132) being supported below the extraction protrusion (42).

7. A lunch box according to any one of claims 4 to 6, wherein the connection part further comprises:

a first connection element (13), said first connection element (13) having a first condition of connection to the base (2) and a second condition of mutual disengagement from said base (2).

8. The lunchbox of claim 7, wherein the connecting portion further comprises:

the transmission end (14) is rotationally connected to the cover body (1), and the transmission end (14) is abutted to the trigger key (15); the first connecting piece (13) and the second connecting piece (13) are arranged on the transmission end (14).

9. The lunchbox of claim 7, further comprising:

the buckle seat (21) is arranged on the base (2);

the clamping groove (22) is arranged on the clamping seat (21), and an opening is formed in the side face of the clamping seat (21) by the clamping groove (22).

10. Lunch box according to claim 9, characterised in that the snap seat (21) comprises:

the limiting part (23) is arranged above the clamping groove (22);

the guide portion (24) is arranged below the clamping groove (22), the spacing between the limiting portion (23) and the guide portion (24) forms the clamping groove (22), the guide portion (24) extends towards the outer side of the clamping groove (22), and the extending direction of the guide portion (24) is parallel to the moving path of the first connecting piece (12).

11. -lunch box according to any one of claims 4 to 6, 8 to 10, characterised in that the lid (1) comprises:

the lunch box comprises a handle (11), wherein an air guide channel (111) is arranged in the handle (11), one end of the air guide channel (111) is communicated with the inner space of the lunch box, and the other end of the air guide channel (111) is arranged on the handle (11) to form an opening.

12. The lunch box according to claim 11, characterized in that a blocking piece (151) is arranged on the opening of the air guide channel (111), and the blocking piece (151) can open or close the opening of the air guide channel (111).

13. Lunch box according to claim 12, characterised in that the air guide channel (111) opens towards the side of the cover (1) so that it is arranged towards the inner wall of the air guide channel (111).

14. Lunch box according to claim 13, characterised in that the triggering key (15) is slidably connected to the opening of the air guide channel (111), that at least part of the connecting part is located in the air guide channel (111) and that the connecting part extends into the sliding path of the triggering key (15).

15. Lunch box according to claim 14, characterised in that the connection part extends between the trigger key (15) and the inner wall of the air guide channel (111), the trigger key (15) being provided on the connection part.

16. Lunch box according to claim 15, characterised in that between the connecting part and the inner wall of the air guide channel (111) there is an elastic element (17).

17. The lunch box according to claim 12, wherein a notch portion (113) is provided in the opening of the air guide passage (111), the blocking piece (151) is provided on the trigger key (15), and the blocking piece (151) blocks the notch portion (113).

18. -lunch box according to any one of the claims 12 to 17, characterised in that the lid (1) is provided with a groove portion (18), the handle (11) being arranged in the groove portion (18).

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