Electric lunch box

Abstract

The present invention provides an electric lunch box, comprising a bottom box and an upper box arranged on the bottom box, wherein a lock is arranged between the bottom box and the upper box; the lock comprises a buckle position arranged on the outer side wall of the bottom box and a hanging buckle that can be buckled and connected with the buckle position; the hanging buckle comprises a hanging member, a buckle member movably arranged on the hanging member, a first elastic member and a linkage arrangement with the buckle member, wherein the first elastic member is connected between the buckle member and the hanging member; the upper end of the hanging member is rotatably connected with the outer side wall of the upper box, and when the hanging member rotates to approach the buckle position, the first elastic member drives the buckle member to buckle and connect with the buckle position. The present invention is convenient for users to operate and use, and at the same time improves the structural reliability, and the electric lunch box will not loosen during repeated steaming and use.

Description

Technical Field

[0001] The invention relates to the field of lunch boxes, in particular to an electric heating lunch box. Background Art

[0002] This section only provides background information related to the present application to help those skilled in the art understand the present application more thoroughly and accurately, and it is not necessarily prior art.

[0003] The electric lunch boxes currently on the market are provided with locks on the outer wall to fix the upper box and the bottom box together. The locks of the existing electric lunch boxes are mostly achieved by interference fit between the buckles hung on both sides of the upper box and the buckle cover of the bottom box. When it is necessary to take out the food in the lunch box, it is necessary to put a finger into the buckle and pull it out hard to open the buckle, which is very inconvenient and cumbersome to operate. In addition, during the use of the electric lunch box, after heating and steaming, the plastic material is deformed by heat, which causes the gap between the buckle and the buckle cover to begin to increase. When the lunch box is lifted, it will feel that the upper box and the bottom box are obviously loose, and the buckle may even be loose, causing the food in the electric lunch box to fall directly to the ground, resulting in poor structural reliability of the lock. Summary of the invention

[0004] The present invention is intended to solve at least one of the technical problems in the prior art. To this end, the present invention proposes an electric lunch box with reliable structure and convenient operation.

[0005] The present invention provides an electric lunch box, comprising a bottom box and an upper box arranged on the bottom box, wherein a lock buckle is arranged between the bottom box and the upper box; the lock buckle comprises a buckle position arranged on the outer side wall of the bottom box and a hanging buckle that can be buckled and connected with the buckle position;

[0006] The hanging buckle comprises a hanging part, a buckle part movably arranged on the hanging part, a first elastic part and a trigger part linked with the buckle part to drive the buckle part away from the buckle position, and the first elastic part is connected between the buckle part and the hanging part to drive the buckle part to approach the buckle position;

[0007] The upper end of the hanging member is rotatably connected to the outer side wall of the upper box so that the hanging member can be close to or away from the buckle position. When the hanging member is rotated to be close to the buckle position, the first elastic member drives the buckle member to be buckled and connected with the buckle position.

[0008] In a preferred embodiment, a third elastic member for generating a torsional elastic force to move the hook away from the buckle position is provided between the bottom box and the hanging member, or between the upper box and the hanging member.

[0009] In a preferred embodiment, a buckle block is protruding from the outer side wall of the bottom box, and the buckle block has a limiting wall extending downward, and the buckle position is formed between the limiting wall and the outer side wall of the bottom box.

[0010] In a preferred embodiment, a buckling end is provided at the upper end of the buckling member, and a guiding slope is provided at the top end of the buckling end facing the limiting wall.

[0011] In a preferred embodiment, the hanging member includes a hanging member body and a pivot member provided at the upper end of the hanging member body and rotatably connected to the outer side wall of the upper box; the buckle member is provided on the hanging member body, and when the hanging member is rotated to be close to the buckle position, the hanging member body is located below the buckle position, and the buckle member buckles upward into the buckle position.

[0012] In a preferred embodiment, the suspension member body is provided with a limiting groove, the buckle member is movably arranged in the limiting groove, and the first elastic member is connected between the lower end of the buckle member and the bottom of the limiting groove.

[0013] In a preferred embodiment, a sliding guide structure is further provided between the groove wall of the limiting groove and the locking member, and the locking member is slidably connected to the limiting groove according to the sliding guide structure.

[0014] In a preferred embodiment, a guide groove is provided in the limiting groove, and the first elastic member is arranged in the guide groove.

[0015] In a preferred embodiment, a rotating shaft hole is provided on the pivot member, a rotating shaft is provided on the outer side wall of the upper box, and the rotating shaft passes through the rotating shaft hole.

[0016] In a preferred embodiment, a torsion spring is sleeved on the rotating shaft.

[0017] In a preferred embodiment, a shielding member is provided on the outer side wall of the upper box, a receiving groove is provided between the shielding member and the outer side wall of the upper box, a partition plate is provided in the receiving groove to divide the receiving groove into an upper receiving groove with an opening facing upward and a lower receiving groove with an opening facing downward, and the pivot member is accommodated in the lower receiving groove.

[0018] In a preferred embodiment, the trigger member includes a button arranged in the upper accommodating groove and a second elastic member arranged between the button and the partition plate, the button includes a pressing end and a contact foot arranged below the pressing end; when the buckle member is engaged with the buckle position, the buckle member is located below the contact foot.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The electric lunch box disclosed in the present invention mainly improves the lock, which is connected to the upper box through the hook and the buckle position provided in the lower box, and the first elastic member is used to generate elasticity to drive the buckle to be buckled and connected with the buckle position, and the buckle is firmly and reliably kept buckled with the buckle position by the elasticity generated by the first elastic member, so as to prevent the electric lunch box from deforming after steaming and causing the buckle to fail and the buckle to be loosened from the buckle position, and the trigger can be used to switch the lock from the locked state to the unlocked state. Therefore, the lock is convenient for users to operate and use, and at the same time improves the structural reliability, and the electric lunch box will not be loosened during repeated steaming and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the partial decomposition structure of the electric lunch box.

[0022] Figure 2 It is a three-dimensional structural diagram of an electric lunch box.

[0023] Figure 3 yes Figure 2 Partial cross-sectional view of BB.

[0024] Figure 4 yes Figure 2 A cross-sectional view of part A is provided to show a schematic diagram of the lock being in a locked state.

[0025] Figure 5 Schematic diagram of the lock in unlocked state. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present application to achieve the predetermined purpose, the specific implementation methods, structures, features and effects of the present application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0027] The invention discloses an electric lunch box, which mainly improves a lock buckle so that the lock buckle is convenient for users to operate and use, and at the same time improves structural reliability, so that the electric lunch box will not be loosened during repeated steaming and cooking.

[0028] Combination Figure 1-Figure 5As shown, the electric lunch box at least comprises a bottom box 1 and an upper box 2 arranged on the bottom box 1, and a pot body (not shown in the figure) and an electric heating element located at the bottom of the pot body are arranged on the bottom box 1; a cooking cavity is formed between the bottom box 1 and the upper box 2, and a rice plate (not shown in the figure) for holding rice and a vegetable plate (not shown in the figure) for holding dishes are placed in the cooking cavity as required, and even a soup box 51 with a box cover 52 can be placed on the upper box 2; a lock is provided between the outer wall of the bottom box 1 and the outer wall of the upper box 2, and the lock has a locked state and an unlocked state. When the lock is in the locked state, the bottom box 1 is fixedly connected to the upper box 2, and when the lock is in the unlocked state, the upper box 2 can be relatively taken out and placed from the bottom box 1, so that it is convenient for users to put the rice plate and the vegetable plate into the cooking cavity.

[0029] When using the electric lunch box to heat food, add a proper amount of water into the pot of the bottom box 1, then stack the rice plate and the vegetable plate on the pot, then place the upper box 2 on the bottom box 1, and then place the rice plate and the vegetable plate in the steaming chamber of the electric lunch box, and finally place the soup box 51 with the box cover 52 on the upper box 2. The electric heating element of the electric lunch box is started to heat, and the water in the pot is heated to generate steam to achieve heating and cooking.

[0030] Specifically, the lock includes a buckle position 12 arranged on the outer wall of the bottom box 1 and a hanging buckle 3 that can be buckled and connected with the buckle position 12, the hanging buckle 3 includes a hanging part 31, a buckle 32 movably arranged on the hanging part 31, a first elastic part 33 and a trigger part 4 linked with the buckle 32 to drive the buckle 32 away from the buckle position 12, the first elastic part 33 is connected between the buckle 32 and the hanging part 31 to drive the buckle 32 to approach the buckle position 12; the upper end of the hanging part 31 is rotatably connected to the outer wall of the upper box 2 so that the hanging part 31 can approach or move away from the buckle position 12; when the hanging part 31 rotates to approach the buckle position 12, the first elastic part 33 drives the buckle 32 to buckle and connect with the buckle position 12.

[0031] When the hanging member 31 rotates to approach the buckle position 12, the first elastic member 33 drives the buckle member 32 to buckle and connect with the buckle position 12, and the buckle is in a locked state that fixes the bottom box 1 and the upper box 2. Figure 4 shown.

[0032] The user drives the buckle 32 away from the buckle position 12 through the trigger 4, and the buckle 32 is disengaged from the buckle position 12. At this time, the hanging buckle 3 can be relatively rotated away from the buckle position 12 by using the hanging member 31, and the lock is in an unlocked state so that the upper box 2 can be separated from the bottom box 1. Figure 5 shown.

[0033] The lock is achieved by the hook 3 connected to the upper box 2 cooperating with the buckle position 12 provided on the lower box 1, and the hook 3 utilizes the elasticity generated by the first elastic member 33 to drive the fastener 32 to be fastened and connected with the buckle position 12, and the elasticity generated by the first elastic member 33 allows the fastener 32 to be firmly and reliably kept in fastening with the buckle position 12, thereby preventing the electric lunch box from deforming after cooking, causing the lock to fail and the fastener 32 to loosen from the buckle position 12.

[0034] The hanging member 31 includes a hanging member body and a pivoting member 312 disposed at the upper end of the hanging member body, and the pivoting member 312 is rotatably connected to the outer wall of the upper box 2; when the hanging member 31 rotates to approach the buckle position 12, the hanging member body is located below the buckle position 12, and the buckle 32 is disposed on the hanging member body, and when the first elastic member 33 generates an upward elastic force on the buckle 32, the buckle 32 snaps upward into the buckle position 12. Compared with the structure in which the buckle 32 is located above the buckle position 12 and buckles with the buckle position 12 from top to bottom, this structure makes it more difficult for the buckle 32 to loosen from the buckle position 12 during the deformation of the electric lunch box during cooking, thereby further improving the structural reliability of the lock.

[0035] The suspension body is provided with a limiting groove 311, the buckle 32 is movably arranged in the limiting groove 311, and the first elastic member 33 is connected between the lower end of the buckle 32 and the bottom of the limiting groove 311. By providing the limiting groove 311 on the suspension 31, it is convenient to assemble the first elastic member 33 and the buckle 32 on the suspension 31. For example, an opening is provided on one side of the limiting groove 311, and the first elastic member 33 and the buckle 32 are both assembled into the limiting groove 311 from the opening, the upper end of the buckle 32 is exposed to the notch of the limiting groove 311, and the first elastic member 33 is arranged between the lower end of the buckle 32 and the bottom of the limiting groove 311.

[0036] A sliding guide structure is also provided between the groove wall of the limiting groove 311 and the buckle 32. The buckle 32 slides up and down along the groove wall of the limiting groove 311 according to the sliding guide structure to prevent the buckle 32 from shaking so as to avoid the buckle 32 being misaligned with the buckle 12 and failing to buckle. At the same time, the buckle 32 is prevented from being loosened from the hanging member 31, resulting in failure of the lock. For example, the sliding guide structure includes a slide rail provided on two opposite side walls of the buckle 32 and a slide groove provided on the groove wall of the limiting groove 311, and the slide rail is used to slide in the slide groove.

[0037] At the same time, the elastic force generated by the first elastic member 33 on the buckle member 32 ensures that the buckle remains buckled with the buckle member 32 when in the locked state. To this end, a guide groove 314 is provided in the limiting groove 311 for guiding and limiting the elastic deformation direction of the first elastic member 33, and the first elastic member 33 is arranged in the guide groove 314. In addition, an opening is provided on one side of the guide groove 314, so that the first elastic member 33 can be assembled into the guide groove 314 through the opening. When a cover 315 is buckled into the opening of the guide groove 314, the first elastic member 33 can be limited in the guide groove 314.

[0038] The upper end of the buckle 32 is provided with a buckle end 321, and the buckle end 321 is buckled and connected with the buckle position 12. The lower end of the buckle 32 is provided with a connecting end 322, and one end of the first elastic member 33 is connected to the connecting end 322. For example, the first elastic member 33 is a spring or a rubber block.

[0039] The outer wall of the bottom box 1 is provided with a buckle block 11, and the buckle block 11 has a limiting wall 111 extending downward, and the buckle position 12 is formed between the limiting wall 111 and the outer wall of the bottom box 1. Therefore, when the buckle end 321 at the upper end of the buckle 32 is buckled and connected with the buckle position 12, the first elastic member 33 generates an upward elastic force on the buckle 32 so that the buckle end 321 abuts against the buckle position 12, and the limiting wall 111 limits the buckle end 321 at the upper end of the buckle 32 to ensure that the lock is in a locked state.

[0040] In addition, a guide slope 3211 is provided on the top of the buckle end 321 facing the limiting wall 111. When the hook 3 is rotated to be close to the buckle position 12 to prepare to switch the lock buckle from the unlocked state to the locked state, when the guide slope 3211 of the buckle end 321 touches the limiting wall 111, the guide slope 3211 simultaneously pushes the buckle end 321 toward the first elastic member 33, so that the buckle end 321 can more easily pass over the buckle end 321 and slide into the buckle position 12.

[0041] The hanging member 31 is rotatably connected to the outer side wall of the upper box 2 via the pivot member 312. The connection structure between the pivot member 312 and the outer side wall of the upper box 2 can be realized in various forms, for example, the pivot member 312 and the outer side wall of the upper box 2 are hingedly connected using a rotating member such as a hinge.

[0042] In a preferred embodiment, a pivot hole 313 is provided on the pivot member 312, and a pivot 34 is provided on the outer wall of the upper box 2. The pivot 34 is arranged through the pivot hole 313, so that the pivot member 312 is rotatably connected to the outer wall of the upper box 2 by using the pivot 34 located in the pivot hole 313.

[0043] A third elastic member is provided between the bottom box 1 and the hanging member 31, or between the upper box 2 and the hanging member 31, for driving the hanging member 31 to rotate away from the buckle position 12. The third elastic member generates a torsional elastic force on the hanging buckle 3, and the torsional elastic force allows the hanging buckle 3 to be away from the buckle position 12 when the lock buckle is in an unlocked state. Figure 5 For example, the third elastic member is a torsion spring 35 sleeved on the rotating shaft 34, and the torsion spring 35 is used to generate a torsion elastic force on the hanging member 31, so that the lock buckle is in a position away from the buckle position 12 (i.e., as shown in FIG. 1 ). Figure 5 The state shown) is to ensure that the hook will not stick to or hinder the lower box 1, so as to facilitate the user to remove the upper box 2 from the lower cover 1 when in use. For another example, the third elastic member is a compression spring provided between the outer wall of the bottom box 1 and the lower end of the hanging member 31, one end of the compression spring is fixedly connected to the outer wall of the bottom box 1, or one end of the compression spring is fixedly connected to the lower end of the hanging member 31, and the two ends of the compression spring are not fixedly connected to the outer wall of the bottom box 1 and the lower end of the hanging member 31 at the same time, and the compression spring is used to push the hanging member 31 away from the buckle position 12 when the lock buckle is in the unlocked state.

[0044] Preferably, a shielding member 21 is provided on the outer side wall of the upper box 2, and a receiving groove is provided between the shielding member 21 and the outer side wall of the upper box 2, and a partition plate 22 is provided in the receiving groove to separate the receiving groove into an upper receiving groove with an opening facing upward and a lower receiving groove with an opening facing downward. The pivoting member 312 is accommodated in the lower receiving groove, so that the rotating connection structure of the hanging member 31 and the upper box 2 is hidden in the shielding member 21 so as not to affect the overall appearance of the electric lunch box.

[0045] There are also many ways to implement the trigger 4. For example, the trigger 4 is a handle or button arranged on the hanging member 31. In one embodiment, the trigger 4 includes a button 41 arranged in the upper receiving groove and a second elastic member 42 (for example, the second elastic member 42 is a spring) arranged between the button 41 and the partition plate 22, and the button 41 includes a pressing end 411 and a contact foot 412 arranged below the pressing end 411; when the buckle 32 is buckled with the buckle position 12, the buckle 32 is located below the contact foot 412, so that when the pressing end 411 is pressed, the buckle 32 is pressed downward by the contact foot 412, and the buckle 32 is disengaged from the buckle position 12 under the torsional elastic force produced by the third elastic member on the hanging buckle 3 away from the buckle position 12, so that the lock is switched from the locked state to the unlocked state. It can be seen that the lock buckle can be switched from the locked state to the unlocked state by operating the trigger 4 with one hand, which is simple to operate and convenient to use.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An electric lunch box, comprising a bottom box (1) and an upper box (2) arranged on the bottom box (1), wherein a lock is provided between the bottom box (1) and the upper box (2); It is characterized in that The lock comprises a buckle position (12) arranged on the outer side wall of the bottom box (1) and a hook (3) that can be buckled and connected with the buckle position (12); The hanging buckle (3) comprises a hanging part (31), a buckle (32) movably arranged on the hanging part (31), a first elastic part (33) and a trigger (4) arranged in linkage with the buckle (32) to drive the buckle (32) away from the buckle position (12), wherein the first elastic part (33) is connected between the buckle (32) and the hanging part (31) to drive the buckle (32) to approach the buckle position (12); The upper end of the hanging member (31) is rotatably connected to the outer side wall of the upper box (2) so that the hanging member (31) can be close to or away from the buckle position (12); when the hanging member (31) is rotated to be close to the buckle position (12), the first elastic member (33) drives the buckle member (32) to be buckled and connected with the buckle position (12); A third elastic member is provided between the bottom box (1) and the hanging member (31), or between the top box (2) and the hanging member (31), which generates a torsional elastic force to move the hanging buckle (3) away from the buckle position (12); A buckle block (11) is protrudingly provided on the outer side wall of the base box (1), and the buckle block (11) has a limiting wall (111) extending downward, and the buckle position (12) is formed between the limiting wall (111) and the outer side wall of the base box (1).

2. The electric lunch box according to claim 1, characterized in that: The upper end of the locking member (32) is provided with a buckling end (321), and the top end of the buckling end (321) is provided with a guiding inclined surface (3211) on a side facing the limiting wall (111).

3. The electric lunch box according to any one of claims 1-2, characterized in that: The hanging member (31) comprises a hanging member body and a pivot member (312) arranged at the upper end of the hanging member body and rotatably connected to the outer wall of the upper box (2); the buckle member (32) is arranged on the hanging member body, and when the hanging member (31) is rotated to be close to the buckle position (12), the hanging member body is located below the buckle position (12), and the buckle member (32) buckles upward into the buckle position (12).

4. The electric lunch box according to claim 3, characterized in that: The suspension member body is provided with a limiting groove (311), the buckle member (32) is movably arranged in the limiting groove (311), and the first elastic member (33) is connected between the lower end of the buckle member (32) and the bottom of the limiting groove (311).

5. The electric lunch box according to claim 4, characterized in that: A sliding guide structure is also provided between the groove wall of the limiting groove (311) and the buckle (32), and the buckle (32) is slidably connected to the limiting groove (311) according to the sliding guide structure.

6. The electric lunch box according to claim 4, characterized in that: A guide groove (314) is provided in the limiting groove (311), and the first elastic member (33) is arranged in the guide groove (314).

7. The electric lunch box according to claim 3, characterized in that: The pivot member (312) is provided with a rotating shaft hole (313), and the outer side wall of the upper box (2) is provided with a rotating shaft (34), and the rotating shaft (34) passes through the rotating shaft hole (313).

8. The electric lunch box according to claim 7, characterized in that: A torsion spring (35) is sleeved on the rotating shaft (34).

9. The electric lunch box according to claim 3, characterized in that: A shielding member (21) is provided on the outer side wall of the upper box (2), and a receiving groove is provided between the shielding member (21) and the outer side wall of the upper box (2). A partition plate (22) is provided in the receiving groove to divide the receiving groove into an upper receiving groove with an opening facing upward and a lower receiving groove with an opening facing downward, and the pivot member (312) is received in the lower receiving groove.

10. The electric lunch box according to claim 9, characterized in that: The trigger member (4) comprises a button (41) arranged in the upper receiving groove and a second elastic member (42) arranged between the button (41) and the partition plate (22); the button (41) comprises a pressing end (411) and a contact foot (412) arranged below the pressing end (411); when the buckle member (32) is buckled with the buckle position (12), the buckle member (32) is located below the contact foot (412).

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