A lunch box

Abstract

The present invention provides a lunch box, comprising: a base; a cover body, mounted on the base; a trigger key, disposed on the cover body; a connecting portion, movably connected in the cover body, the connecting portion abutting against the trigger key, the connecting portion comprising a first connecting member, the first connecting member having a first state of being connected to the base, and a second state of being mutually disengaged from the base. The trigger key is disposed on the cover body, which does not increase the volume of the lunch box. Since the connecting portion abuts against the trigger key, the user can drive the connecting portion to move by pressing the trigger key. The connecting portion is movably connected to the cover body, and can move relative to the cover body under the push of the trigger key, thereby driving the first connecting member to move between the first state and the second state, thereby realizing the connection between the cover body and the base controlled by the key.

Description

Technical Field

[0001] The invention relates to the technical field of lunch box structures, in particular to a lunch box. Background Art

[0002] A lunch box is a commonly used daily utensil. The lunch box usually comprises a cover and a base. The cover and the base are connected via a snap assembly disposed on the outside of the lunch box. When using the lunch box, the user needs to break open the snap assembly and then separate the cover and the base.

[0003] The buckle components connecting the lid and the base of the lunch box on the market are usually arranged in pairs, such as two sets of buckles symmetrically arranged on both sides of the lunch box, or buckles are arranged on all sides of the lunch box. When using it, the user needs to use both hands to pry open the buckles, or pry open each buckle separately. The external buckle components will make the shape of the lunch box irregular, and the protruding buckles will take up extra space in the length or width direction of the lunch box. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the arrangement of the buckle assembly makes the shape of the lunch box irregular, thereby providing a lunch box.

[0005] A lunch box, comprising:

[0006] Base;

[0007] A cover body, mounted on the base;

[0008] A trigger button is provided on the cover body;

[0009] The connecting part is movably connected in the cover body, the connecting part abuts against the trigger key, and the connecting part includes a first connecting member, the first connecting member has a first state of being connected to the base, and a second state of being disengaged from the base.

[0010] The connecting portion is rotatably connected in the cover body.

[0011] The lunch box also includes:

[0012] A buckle seat, arranged on the base;

[0013] The card slot is arranged on the card buckle seat, and the card slot forms an opening on the side of the card buckle seat.

[0014] The buckle seat comprises:

[0015] A limiting portion, arranged above the card slot;

[0016] The guide portion is arranged below the slot, the spacing between the limiting portion and the guide portion constitutes the slot, the guide portion extends outward from the slot, and the extension direction of the guide portion is parallel to the movement path of the first connecting member.

[0017] The lunch box also includes:

[0018] The steaming rack is located in the inner space of the lunch box and is supported on the base.

[0019] The connecting portion further comprises:

[0020] The second connecting member is arranged on the cover body, and the second connecting member has a first position connected with the steaming rack and a second position disconnected from the steaming rack.

[0021] The connection part also includes:

[0022] A transmission end is rotatably connected to the cover body and abuts against the trigger key; the first connecting member and the second connecting member are both arranged on the transmission end.

[0023] When the first connecting member is in a first state, the second connecting member is in a first position; when the first connecting member is in a second state, the second connecting member is in a second position.

[0024] The lunch box also includes:

[0025] The extraction part is arranged on the steaming rack, a matching groove is arranged at the part of the extraction part facing the cover body, an extraction protrusion is arranged on the side wall of the matching groove, and the extraction protrusion is located on the movement path of the second connecting member.

[0026] The second connecting member is provided with an extraction limiting groove on one side facing the extraction protrusion. When the second connecting member is in the first position, the extraction limiting groove is matched on the extraction protrusion.

[0027] The extraction limit slot comprises:

[0028] An extraction limit end is supported below the extraction protrusion.

[0029] The cover body comprises:

[0030] A handle, wherein an air guide channel is arranged in the handle, one end of the air guide channel is connected to the internal space of the lunch box, and the other end of the air guide channel forms an opening on the handle.

[0031] A baffle is provided on the opening of the air guide channel, and the baffle can open or close the opening of the air guide channel.

[0032] The opening of the air guide channel faces the side surface of the cover body, so that the opening is arranged toward the inner wall of the air guide channel.

[0033] The trigger key is slidably connected to the opening of the air guide channel, at least a portion of the connection portion is located in the air guide channel, and the connection portion extends to the sliding path of the trigger key.

[0034] 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.

[0035] An elastic member is provided between the connecting portion and the inner wall of the air guiding channel.

[0036] A notch is provided on the opening of the air guide channel, the blocking piece is provided on the trigger key, and the blocking piece covers the notch.

[0037] The cover body is provided with a groove portion, and the handle is arranged in the groove portion.

[0038] The technical solution of the present invention has the following advantages:

[0039] 1. The present invention provides a lunch box, comprising: a base; a cover body, assembled on the base; a trigger key, arranged on the cover body; a connecting part, movably connected in the cover body, the connecting part abuts against the trigger key, the connecting part comprises a first connecting member, the first connecting member has a first state of being connected to the base, and a second state of being disengaged from the base.

[0040] The trigger key is arranged on the cover body, which will not increase the volume of the lunch box in the length direction or the width direction. Moreover, for most lunch boxes on the market, a handle portion is arranged on the lunch box cover body itself. Therefore, by improving the handle on the cover body, the occupation of the length and width of the lunch box by the existing snap-on connection assembly is solved, and the cover body and the base can also be connected. Moreover, the improvement of the handle portion, in combination with the structural improvement inside the lunch box, 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. Since the connecting portion abuts against the trigger key, the user can drive the connecting portion to move by pressing the trigger key. The connecting portion is movably connected to the cover body, and can move relative to the cover body under the push of the trigger key, thereby driving the first connecting member to move between the first state and the second state, and realizing the connection between the cover body and the base controlled by the key.

[0041] 2. In the lunch box provided by the present invention, the connecting part is rotatably connected in the cover body.

[0042] Since the first connecting member is a part of the connecting portion, when the connecting portion rotates, the first connecting member also rotates. There is a certain distance between the first connecting member and the rotation center of the connecting portion. Therefore, the height of the first connecting member will change during the rotation process, thereby achieving not only the connection between the cover body and the base during the process of rotating to the first state connected to the base, but also the cover body and the base can be tightened when the height changes during the connection process to achieve further tightening.

[0043] 3. The lunch box provided by the present invention further comprises: a steaming rack located in the inner space of the lunch box, and the steaming rack is supported on the base.

[0044] The steaming rack can separate the rice from the internal space, and containers can be placed on the upper and lower layers of the steaming rack to hold food.

[0045] 4. The lunch box provided by the present invention, the connecting part further comprises: a second connecting member, which is arranged on the cover body, and the second connecting member has a first position connected to the steaming rack and a second position disconnected from the steaming rack.

[0046] When the user uses the steam rack, it is connected to the steam rack through the second connecting piece, so that the steam rack and the cover body can be removed together. After the steam rack is placed in a suitable position, the second connecting piece is moved to the second position to disengage the cover body from the steam rack, thereby avoiding direct contact between the user and the steam rack for taking and placing.

[0047] 5. The lunch box provided by the present invention, the connecting part also includes: a transmission end, the transmission end is rotatably connected to the cover body, and the transmission end abuts against the trigger key; the first connecting member and the second connecting member are both arranged on the transmission end.

[0048] When the trigger key controls the transmission end to move, the first connecting member and the second connecting member can move simultaneously, which is convenient for user control.

[0049] 6. The lunch box provided by the present invention further comprises: an extraction part, which is arranged on the steaming rack, and a matching groove is provided at the part of the extraction part facing the cover body, and an extraction protrusion is provided on the side wall of the matching groove, and the extraction protrusion is located on the movement path of the second connecting member.

[0050] The extraction part is arranged on the side of the steaming rack that is superposed on the cover body, which can make it easier to connect the connection part with the extraction part. The opening of the matching groove can at least pass the second connecting member, so that the second connecting member can be freely moved in and out when the steaming rack is detached. The extraction protrusion can form an abutting matching relationship with the second connecting member during the process of the second connecting member rotating to the left or right, or the extraction protrusion is located on the movement path of the second connecting member to disengage from the matching groove to prevent the second connecting member from leaving, thereby forming the matching between the second connecting member and the steaming rack.

[0051] 7. The lunch box provided by the present invention, the cover body includes: a handle, an air guide channel is provided in the handle, one end of the air guide channel is connected to the internal space of the lunch box, and the other end of the air guide channel forms an opening on the handle.

[0052] The air guide channel can release the steam in the lunch box to prevent the steam from condensing in large quantities in the lunch box and producing more condensed water.

[0053] 8. 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 a 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.

[0054] The trigger key of the sliding connection can have a relatively accurate movement path, so that the trigger key can be more easily pressed by the user to a preset position and restored to an initial position.

[0055] 9. 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 guiding channel.

[0056] On the one hand, the elastic member can provide a certain resistance force to increase the user's hand feeling when the user presses the trigger key, and on the other hand, it can also protect the trigger key to prevent the user from pressing it too hard. At the same time, after the user removes the pressing force, the elastic recovery ability of the elastic member can push the trigger key back to its original position. Specifically, the elastic member is a conical spring.

[0057] 10. In the lunch box provided by the present invention, a notch is provided on the opening of the air guide channel, the blocking piece is provided on the trigger key, and the blocking piece covers the notch.

[0058] Because the trigger key blocks the opening, the notch can expand the opening, which helps release the internal pressure of the lunch box. Specifically, the baffle is arranged obliquely 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.

[0059] 11. In the lunch box provided by the present invention, a groove portion is provided on the cover body, and the handle is provided in the groove portion.

[0060] The groove portion can reduce the space occupied by the handle protruding from the outside of the lunch box, and the inner side of the groove has an arc surface. When the gas in the notch flows out, it can guide the hot air to diffuse around and prevent the hot air from forming a directional impact airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 It is a three-dimensional diagram of the lunch box structure of the present invention;

[0063] Figure 2 This is an exploded view of the lunch box structure;

[0064] Figure 3 A cross-sectional view showing a lunch box in a closed state;

[0065] Figure 4 for Figure 3 Figure 1 is a schematic diagram showing a state where the second connecting member and the extraction portion are disconnected from each other;

[0066] Figure 5 is a cross-sectional view showing the structure of the steaming rack;

[0067] Figure 6 for Figure 3 A schematic diagram showing the matching state of the first connecting member and the buckle seat is shown by rotating the lunch box at an angle;

[0068] Figure 7 For Figure 6 A schematic diagram showing a state in which the trigger key is pressed to make the second connecting member cooperate with the extraction portion, and the first connecting member is disengaged from the buckle seat;

[0069] Figure 8 is an enlarged view showing a state where the trigger key is pressed to make the second connecting member cooperate with the extraction portion;

[0070] Fig. 9 A schematic diagram showing a state where the first connecting member and the buckle seat are disengaged;

[0071] Fig.10 An exploded view showing the base structure;

[0072] Fig.11 A three-dimensional diagram showing the structure of the connection portion;

[0073] Fig.12 A three-dimensional diagram of the cover structure after the trigger key is removed;

[0074] Fig.13 A three-dimensional diagram showing the structure of a trigger key.

[0075] Description of reference numerals:

[0076] 1. Cover body; 11. Handle; 111. Air guide channel; 112. Rotating shaft; 113. Notch; 12. First connecting member; 13. Second connecting member; 131. Extraction limit groove; 132. Extraction limit end; 14. Transmission end; 141. Guide hole; 15. Trigger key; 151. Blocking piece; 152. Matching buckle; 16. Elastic member; 17. Elastic limit groove; 18. Groove; 2. Base; 21. Buckle seat; 22. Slot; 23. Limiting part; 24. Guide part; 25. Inner shell; 26. Outer shell; 27. Assembly space; 3. Steaming rack; 31. Steam vent; 4. Extraction part; 41. Matching groove; 42. Extraction protrusion; 43. Holding part. DETAILED DESCRIPTION

[0077] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0078] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0079] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] 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.

[0081] Example 1

[0082] This embodiment provides a lunch box, such as Figure 1 , Figure 2As shown, it comprises: a base 2; a cover 1, which is assembled on the base 2; a trigger key 15, which is arranged on the cover 1; a connecting part, which is movably connected in the cover 1, the connecting part abuts against the trigger key 15, and the connecting part comprises a first connecting member 12, the first connecting member 12 has a first state of being connected to the base 2, and a second state of being mutually disengaged from the base 2. The trigger key 15 is arranged on the cover 1, which does not increase the volume of the lunch box. Since the connecting part abuts against the trigger key 15, the user can drive the connecting part to move by pressing the trigger key 15. The connecting part is movably connected to the cover 1, and can move relative to the cover 1 under the push of the trigger key 15, thereby driving the first connecting member 12 to move between the first state and the second state, and realizing the connection between the cover 1 and the base 2 by key control.

[0083] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 , Fig.11 As shown, the connecting portion is rotatably connected in the cover body 1. Since the first connecting member 12 is a part of the connecting portion, when the connecting portion rotates, the first connecting member 12 also rotates. There is a certain distance between the first connecting member 12 and the rotation center of the connecting portion. Therefore, the height of the first connecting member 12 changes during the rotation process, so that in the process of rotating to the first state connected with the base 2, not only the cover body 1 and the base 2 are connected, but also the cover body 1 and the base 2 can be tightened to achieve further tightening when the height changes during the connection process. Specifically, a rotating shaft 112 extends 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 extends from the cover body 1, and the connecting portion is rotatably connected to the rotating shaft 112.

[0084] On the basis of the above implementation manner, as a further limited implementation manner, Figure 2 , Fig. 9 , Fig.10 As shown, the lunch box further includes: a buckle seat 21, which is provided on the base 2; a slot 22, which is provided on the buckle seat 21, and the slot 22 forms an opening on the side of the buckle seat 21. Specifically, Fig. 9 From a viewing angle, the card slot 22 is located near the top of the card slot 21 , and the card slot 22 forms an opening for the first connector 12 to enter at the left side of the card slot 21 .

[0085] On the basis of the above implementation manner, as a further limited implementation manner, Figure 2 , Fig. 9As shown, the buckle seat 21 includes: a limiting portion 23, which is arranged above the card slot 22; a guiding portion 24, which is arranged below the card slot 22. The distance between the limiting portion 23 and the guiding portion 24 constitutes the card slot 22. The guiding portion 24 extends outward from the card slot 22, and the extending direction of the guiding portion 24 is parallel to the movement path of the first connecting member 12. Specifically, in combination with Figure 7 - Fig. 9 The surfaces of the guide portion 24 and the limiting portion 23 facing the first connector 12 are both arcuate surfaces. The arcuate surface on the guide portion 24 is recessed downward away from the slot 22. When the first connector 12 approaches the opening of the slot 22, the guide portion 24 can play a guiding role. The arcuate surface on the limiting portion 23 is recessed upward away from the slot 22. After the first connector 12 enters the slot 22, the arcuate surface on the limiting portion 23 contacts the first connector 12 and is pulled upward by the first connector 12 during the process of the first connector 12 rotating and entering, thereby transmitting the force to the base 2 through the buckle seat 21, and further fastening the cover 1 and the base 2.

[0086] On the basis of the above implementation manner, as a further limited implementation manner, Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the lunch box further includes: a steaming rack 3, which is located in the inner space of the lunch box, and the steaming rack 3 is supported on the base 2. The steaming rack 3 can separate the rice from the inner space, and containers can be placed in the upper and lower spaces of the steaming rack 3 to hold food. Figure 2 , Figure 3 , Figure 5 As shown, a plurality of steam holes 31 are distributed on the steaming rack 3. As an alternative embodiment, the steaming rack 3 has a limiting pit suitable for limiting the placement of the container. The steaming rack 3 is supported on the base 2 and can be installed when the user needs it, and can be removed when the steaming rack 3 is not needed. The installation and removal of the steaming rack 3 does not affect the cooperation between the cover 1 and the base 2.

[0087] Among them, the structure of the base 2 is as follows Fig.10 As shown, the base 2 includes an inner shell 25 and an outer shell 26 adapted to each other, the inner shell 25 is embedded in the outer shell 26, and as shown in FIG. Figure 3 , Figure 6 , Figure 7 As shown, an assembly space 27 is formed between the inner shell 25 and the outer shell 26. Functional components of the lunch box, such as a control panel and a heating component, can be arranged in the assembly space 27. Figure 1 As shown, a display screen can be arranged outside the base 2 , and relevant control components and control circuits of the display screen are also arranged in the assembly space 27 .

[0088] On the basis of the above implementation manner, as a further limited implementation manner, Figure 2 , Figure 7 , Figure 8 , Fig.11 As shown, the connection part further includes: a second connection member 13, which is arranged on the cover body 1, and the second connection member 13 has a first position connected with the steaming rack 3, and a second position disengaged from the steaming rack 3. When the user uses the steaming rack 3, the second connection member 13 is connected with the steaming rack 3, and the steaming rack 3 can be removed together with the cover body 1 when the cover body 1 is removed. After the steaming rack 3 is placed in a suitable position, the second connection member 13 is moved to the second position to disengage the cover body 1 from the steaming rack 3, so that the user can avoid direct contact with the steaming rack 3 for taking and placing.

[0089] On the basis of the above implementation manner, as a further limited implementation manner, Figure 7 , Figure 8 , Fig.11 As shown, the connection part also includes: a transmission end 14, the transmission end 14 is rotatably connected to the cover body 1, and the transmission end 14 abuts against the trigger key 15; the first connection member 12 and the second connection member 13 are both arranged on the transmission end 14. When the trigger key 15 controls the transmission end 14 to move, the first connection member 12 and the second connection member 13 can act at the same time. It is convenient for users to control. As an alternative embodiment, the first connection member 12 and the second connection member 13 are respectively controlled by different mechanisms, and the user can control the actions of the first connection member 12 and the second connection member 13 respectively when using.

[0090] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 6 , Figure 7 , Figure 8 As shown, when the first connecting member 12 is in the first state, the second connecting member 13 is in the first position, and when the first connecting member 12 is in the second state, the second connecting member 13 is in the second position.

[0091] The specific control process is: the user can control the first connecting member 12 and the second connecting member 13 to move simultaneously through the trigger key 15. Figure 4 , Figure 6 As shown, the cover 1 is assembled on the base 2, the second connecting member 13 and the steaming rack 3 are in a disengaged state, the first connecting member 12 is engaged in the slot 22 of the buckle seat 21, the cover 1 and the base 2 are connected to each other, and the cover 1 and the base 2 cannot be separated by pulling the handle 11. Figure 6 When the trigger key 15 is pressed on the basis of Figure 7 , Figure 8As shown, 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 and the first connecting member 12 and the second connecting member 13 are respectively located at the two ends of the rotation center of the transmission end 14. Figure 8 In this state, the transmission end 14 is pushed to the right, and the first connecting member 12 and the second connecting member 13 both rotate to the left. After the first connecting member 12 rotates to the left, it is disengaged from the slot 22 of the buckle seat 21, and after the second connecting member 13 rotates to the left, it is connected to the steaming rack 3. At this time, the user keeps pressing the trigger button 15 and pulls upward to remove the cover 1 and the steaming rack 3 together.

[0092] Further, when the user needs to fit the cover 1 onto the base 2, there are two situations depending on whether the user needs the steaming rack 3. When the user needs the steaming rack 3, Figure 2 As shown in the figure, first put the food in the base 2, and then put other food on the steaming rack 3. The user first Figure 4 In the state shown, the second connecting member 13 is aligned and inserted into the matching groove 41 of the steaming rack 3, and then the trigger key 15 is pressed, and the second connecting member 13 is rotated to the left so that the second connecting member 13 and the steaming rack 3 are connected to each other. Figure 7 , Figure 8 After the cover 1 is connected to the steaming rack 3, keep pressing the trigger key 15, lift the cover 1 together with the steaming rack 3 and place them on the base 2, then release the trigger key 15, as shown in FIG. Figure 7 As shown, after the trigger key 15 is released, the first connecting member 12 rotates rightward from the outside of the slot 22, that is, rotates toward the inside of the slot 22, so as to achieve the connection and cooperation between the cover body 1 and the base 2, and at the same time, the second connecting member 13 also rotates rightward to become Figure 3 , Figure 4 , Figure 6 When the user does not need the steaming rack 3, Figure 2 As shown in FIG. 1 , first place the food in the base 2, then keep pressing the trigger button 15, lift the cover 1 together with the steaming rack 3 and place them on the base 2, then release the trigger button 15, as shown in FIG. Figure 7 As shown, after the trigger key 15 is released, the first connecting member 12 rotates rightward from the outside of the slot 22 , that is, rotates toward the inside of the slot 22 , so as to achieve the connection and cooperation between the cover body 1 and the base 2 .

[0093] On the basis of the above implementation manner, as a further limited implementation manner, Figure 5 - Figure 7As shown, the lunch box further includes: an extraction portion 4, which is arranged on the steaming rack 3, and a matching groove 41 is arranged at the portion of the extraction portion 4 facing the cover body 1, and an extraction protrusion 42 is arranged on the side wall of the matching groove 41, and the extraction protrusion 42 is located on the movement path of the second connecting member 13. The extraction portion 4 is arranged on the side of the steaming rack 3 that is superposed on the cover body 1, which can make it more convenient to connect the connection portion with the extraction portion 4. The opening of the matching groove 41 can at least pass the second connecting member 13, so that the second connecting member 13 can freely enter and exit when the steaming rack 3 is disengaged. The extraction protrusion 42 can form an abutting matching relationship with the second connecting member 13 during the process of the second connecting member 13 rotating to the left or right, or the extraction protrusion 42 is located on the movement path of the second connecting member 13 to disengage from the matching groove 41 to prevent the second connecting member 13 from leaving, thereby forming the matching between the second connecting member 13 and the steaming rack 3.

[0094] Specifically, Figure 5 As shown, the extraction portion 4 is perpendicular to the steaming rack 3 and extends above the steaming rack 3. A holding portion 43 is extended from at least one of the left and right sides of the extraction portion 4. The holding portion 43 is convenient for the user to grab and move the steaming rack 3. The user can directly grab the steaming rack 3 and move it after the steaming rack 3 is cooled down, or use auxiliary tools such as heat insulation clamps to clamp the mobile steaming rack 3.

[0095] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 As shown, an extraction limiting groove 131 is provided on a side of the second connecting member 13 facing the extraction protrusion 42 . When the second connecting member 13 is in the first position, the extraction limiting groove 131 is engaged with the extraction protrusion 42 .

[0096] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 As shown, the extraction limit groove 131 includes: an extraction limit end 132, and the extraction limit end 132 is supported below the extraction protrusion 42. As an alternative embodiment, in Figure 4 From the perspective, the extraction limit groove 131 is discarded and only the extraction limit end 132 is retained, so that the second connecting member 13 is L-shaped.

[0097] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 , Figure 4 , Figure 8 , Fig.12As shown, the cover body 1 includes a handle 11, an air guide channel 111 is provided in the handle 11, one end of the air guide channel 111 is connected to the internal 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 to prevent the steam from condensing in large quantities in the lunch box and generating more condensed water.

[0098] On the basis of the above implementation manner, as a further limited implementation manner, Fig.12 , Fig.13 As shown, a baffle 151 is provided on the opening of the air guide channel 111, and the baffle 151 can open or close the opening of the air guide channel 111. Specifically, the baffle 151 is made of a flexible material such as rubber, or the baffle 151 is made of a memory metal. The baffle 151 made of a flexible material can be pushed open when the pressure in the internal space of the lunch box increases, and the memory metal is a temperature-sensitive metal that can restore its shape after being heated, so that the baffle 151 can have the function of opening and closing the opening.

[0099] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 As shown, the opening of the air guide channel 111 faces the side of the cover body 1, so that the opening is arranged toward the inner wall of the air guide channel 111. Specifically, as Figure 4 , Figure 8 As shown, the side guide air channel 111 exhausts air to the periphery of the cover body 1, so as to avoid the air channel 111 directly exhausting air above and affecting the user. Figure 4 , Figure 8 From the perspective, the air guide channel 111 exhausts toward the left, and the exhaust direction is parallel to the top of the cover body 1. As an alternative embodiment, the air guide channel 111 exhausts toward the right. As another alternative embodiment, the air guide channel 111 exhausts obliquely toward the upper left or upper right direction.

[0100] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 As shown, the trigger key 15 is slidably connected to the opening of the air guide channel 111, at least part of the connection portion is located in the air guide channel 111, and the connection portion extends to the sliding path of the trigger key 15. The slidably 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 a preset position and restored to the initial position.

[0101] Specifically, the outer periphery of the trigger key 15 and the inner wall of the air guide channel 111 are provided with slide rails and slide grooves adapted to each other. As an alternative embodiment, the trigger key 15 and the inner wall of the air guide channel 111 are clearance-fitted.

[0102] Based on the above embodiment, as a further limited embodiment, the connection portion extends between the trigger key 15 and the inner wall of the air guide channel 111, and the trigger key 15 is arranged on the connection portion. When the trigger key 15 slides toward the inner wall of the air guide channel 111, the connection portion is driven to rotate. Specifically, Figure 4 , Fig.11 , Fig.13 As shown, a guide hole 141 is provided on the transmission end 14 of the connection part, and a matching buckle 152 is provided on the side of the trigger key 15 facing the transmission end 14. The specific structure of the matching buckle 152 in this embodiment is an expansion connector. As an alternative implementation, the trigger key 15 is connected to the transmission end 14 by bolts.

[0103] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 As shown, 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 resistance force to increase the user's hand feel when the user presses the trigger key 15, and on the other hand, it can also protect the trigger key 15 to prevent the user from pressing it 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 ability of the elastic member 16. Specifically, the elastic member 16 is a conical spring. As an alternative embodiment, the elastic member 16 is an ordinary spring. As another alternative embodiment, a torsion spring is provided between the connecting portion and the inner wall of the air guide channel 111, and the torsion spring is installed at the rotating shaft 112 of the connecting portion.

[0104] Specifically, Figure 8 As shown, the trigger key 15 is provided with an elastic limiting groove 17. Figure 8 From the perspective of the embodiment, the elastic limiting groove 17 is located on the right side of the elastic limiting groove 17, and the elastic member 16 is sandwiched between the trigger key 15 and the inner wall of the air guide channel. Figure 8 In the viewing angle, the trigger key 15 is pressed to the right, causing the elastic member 16 to undergo elastic deformation and compression to the right.

[0105] On the basis of the above implementation manner, as a further limited implementation manner, Figure 4 , Figure 8 , Fig.12 As shown, a notch 113 is provided on the opening of the air guide channel 111, and the blocking piece 151 is provided on the trigger key 15, and the blocking piece 151 blocks the notch 113. Since the trigger key 15 blocks the opening, the notch 113 can expand the opening, which helps to release the pressure inside the lunch box. Specifically, the blocking piece 151 is tilted on the notch 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.

[0106] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 , Figure 3 , Fig.12 As shown, the cover body 1 is provided with a groove portion 18, and the handle 11 is arranged in the groove portion 18. The groove portion 18 can reduce the space occupied by the handle 11 protruding outside the lunch box, and the inner side of the groove has an arc surface, when the gas in the notch flows out, it can guide the hot air to diffuse around, and prevent the hot air from forming a directional impact airflow.

[0107] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A lunch box, characterized in that: include: Base (2); A cover body (1) mounted on the base (2); A trigger key (15) is provided on the cover body (1); a connecting portion movably connected in the cover body (1), the connecting portion abutting against the trigger key (15), the connecting portion comprising a first connecting member (12), the first connecting member (12) having a first state of being connected to the base (2), and a second state of being disconnected from the base (2); The cover body (1) comprises: a handle (11), an air guide channel (111) is provided in the handle (11), one end of the air guide channel (111) is connected to the internal space of the lunch box, and the other end of the air guide channel (111) forms an opening on the handle (11); The trigger key (15) is slidably connected to the opening of the air guide channel (111), at least a portion of the connection portion is located in the air guide channel (111), and the connection portion extends to the sliding path of the trigger key (15).

2. The lunch box according to claim 1, characterized in that: The connecting portion is rotatably connected inside the cover body (1).

3. The lunch box according to claim 2, characterized in that: The lunch box also includes: A buckle seat (21) is arranged on the base (2); The card slot (22) is provided on the card buckle seat (21), and the card slot (22) forms an opening on the side of the card buckle seat (21).

4. The lunch box according to claim 3, characterized in that: The buckle seat (21) comprises: A limiting portion (23) is disposed above the card slot (22); A guide portion (24) is disposed below the slot (22); the spacing between the limiting portion (23) and the guide portion (24) forms the slot (22); the guide portion (24) extends toward the outside of the slot (22); and the extension direction of the guide portion (24) is parallel to the movement path of the first connecting member (12).

5. The lunch box according to any one of claims 2 to 4, characterized in that: The lunch box also includes: The steaming rack (3) is located in the internal space of the lunch box, and the steaming rack (3) is supported on the base (2).

6. The lunch box according to claim 5, characterized in that: The connecting portion further comprises: The second connecting member (13) is arranged on the cover body (1), and the second connecting member (13) has a first position in which it is connected to the steaming rack (3), and a second position in which it is disconnected from the steaming rack (3).

7. The lunch box according to claim 6, characterized in that: The connection part also includes: A transmission end (14), the transmission end (14) is rotatably connected to the cover body (1), and the transmission end (14) abuts against the trigger key (15); the first connecting member (12) and the second connecting member (13) are both arranged on the transmission end (14).

8. The lunch box according to claim 7, characterized in that: When the first connecting member (12) is in a first state, the second connecting member (13) is in a first position; when the first connecting member (12) is in a second state, the second connecting member (13) is in a second position.

9. The lunch box according to claim 6, characterized in that: The lunch box also includes: An extraction portion (4) is arranged on the steaming rack (3); a matching groove (41) is provided at a portion of the extraction portion (4) facing the cover body (1); an extraction protrusion (42) is provided on a side wall of the matching groove (41); and the extraction protrusion (42) is located on a movement path of the second connecting member (13).

10. The lunch box according to claim 9, characterized in that: An extraction limit groove (131) is provided on a side of the second connecting member (13) facing the extraction protrusion (42); when the second connecting member (13) is in the first position, the extraction limit groove (131) fits on the extraction protrusion (42).

11. The lunch box according to claim 10, characterized in that: The extraction limiting groove (131) comprises: An extraction limit end (132), wherein the extraction limit end (132) is supported below the extraction protrusion (42).

12. The lunch box according to claim 1, characterized in that: A baffle (151) is provided on the opening of the air guide channel (111), and the baffle (151) is capable of opening or closing the opening of the air guide channel (111).

13. The lunch box according to claim 12, characterized in that: The opening of the air guide channel (111) faces the side of the cover body (1), so that the opening is arranged towards the inner wall of the air guide channel (111).

14. The lunch box according to claim 1, characterized in that: 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 arranged on the connecting portion.

15. The lunch box according to claim 14, characterized in that: An elastic member (16) is provided between the connecting portion and the inner wall of the air guide channel (111).

16. The lunch box according to claim 12, characterized in that: A notch portion (113) is provided on the opening of the air guide channel (111), the blocking sheet (151) is provided on the trigger key (15), and the blocking sheet (151) covers the notch portion (113).

17. The lunch box according to any one of claims 12 to 16, characterized in that: The cover body (1) is provided with a groove portion (18), and the handle (11) is arranged in the groove portion (18).

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