Layered locking mechanism of group meal heat preservation box

Abstract

The utility model relates to the technical field of roll meal heat preservation boxes, in particular to a roll meal heat preservation box layered locking mechanism which comprises a box body, a box cover body, a supporting bottom plate and two sets of bottom partition plates, the box cover body is rotatably installed at the upper end of the box body, the supporting bottom plate is fixedly installed on the outer wall of the bottom end of the box body. According to the layered locking mechanism of the group meal heat preservation box, the inner partition plate and the upper partition plate which are detachable are arranged in the box body, and structures such as the T-shaped inserting pieces and the limiting inserting strips are introduced, so that a flexible layered adjusting assembly is formed, and rapid disassembly and assembly and recombination can be conducted according to the heights and sizes of meal boxes of different specifications in group meal; according to the layered design, the limitation of a traditional fixed partition plate is broken through, flexible configuration of the space height is achieved, the internal volume utilization rate is increased, the single heat preservation box is made to meet the stacking requirement of multiple meal boxes, the partition plate is designed to be detachable, and maintenance and cleaning of the box body are facilitated.

Description

A layered locking mechanism for insulated meal boxes Technical Field

[0001] This utility model relates to the field of group meal insulated boxes, and in particular to a layered locking mechanism for group meal insulated boxes. Background Technology

[0002] A group meal insulated box is a type of insulated transport equipment used for group catering. It is usually made of heat-insulating materials to ensure that food is kept at a suitable temperature during delivery. The layered locking mechanism of the group meal insulated box is an auxiliary component used to divide the placement area inside the box to facilitate the storage of meal boxes of different sizes.

[0003] Existing insulated lunch boxes typically use a fixed partition structure, which cannot flexibly adjust the spacing according to the size of the lunch boxes, resulting in low space utilization, inability to meet the storage needs of lunch boxes of various sizes, and difficulty in maintenance and cleaning.

[0004] Therefore, in response to the problems of the lack of flexible layer adjustment capability and difficulty in maintenance and cleaning of the above-mentioned group meal insulated boxes, this utility model sets up a detachable inner partition and an upper partition in the box body, and introduces structures such as T-shaped plugs and limiting strips to form a flexible layer adjustment component. It can be quickly disassembled and reassembled according to the height and size of different lunch boxes in the group meal, and the partition is designed to be detachable, which facilitates the maintenance and cleaning of the box body. Summary of the Invention

[0005] To overcome the common problems of insulated food containers for group meals lacking flexible layering adjustment capabilities and being difficult to maintain and clean.

[0006] The technical solution of this utility model is as follows: a layered locking mechanism for a group meal insulated box, including a box body, a box cover body, a supporting base plate and a bottom partition plate. The box cover body is rotatably installed on the upper end of the box body, and the supporting base plate is fixedly installed on the outer wall of the bottom end of the box body. Two sets of bottom partition plates are provided, and both sets of bottom partition plates are located inside the box body. Positioning inserts are symmetrically arranged on the outer walls of both sides of the bottom partition plate. An auxiliary insert is fixedly installed on the top outer wall of one set of positioning inserts. Two sets of positioning slots for sliding installation of positioning inserts and auxiliary inserts are symmetrically opened on the inner walls of both sides of the box body.

[0007] A partition adjustment assembly is provided above the bottom partition, an abutment insertion assembly is provided on the outer side of the bottom partition, and a support adjustment assembly is provided below the support base plate.

[0008] Preferably, the partition adjustment assembly includes an inner partition, an upper partition, a limiting strip, a connector, and a T-shaped connector groove. The inner partition is fitted to the top outer wall of the bottom partition, and the upper partition is fitted to the top outer wall of the inner partition. Both the inner partition and the upper partition are fitted to the side outer wall of the auxiliary strip. The limiting strip is fixedly installed on the side outer wall of the upper partition, and the limiting strip and the positioning strip are slidably connected. The top and bottom outer walls of the inner partition are provided with connectors, which are composed of T-shaped connector strips and connector blocks. The bottom outer walls of the upper partition and the bottom outer walls of the bottom partition are provided with T-shaped connector grooves for the T-shaped connector strips to be inserted and installed.

[0009] Preferably, the portion of the connector located at the connector block position is slidably connected to the positioning strip, and the total height of the inner partition and the upper partition is equal to the height of the auxiliary strip.

[0010] Preferably, the abutment insertion assembly includes a cylindrical groove, a limiting cylinder, a limiting piston rod, an abutment spring, and an abutment pin. The inner walls of the housing body located at the positioning slot are symmetrically provided with cylindrical grooves. The inner walls of the bottom of both sets of cylindrical grooves are fixedly installed with limiting cylinders. The limiting piston rod is slidably installed inside the limiting cylinder. An abutment spring is connected between the outer side wall of the limiting piston rod and the inner wall of the bottom of the limiting cylinder. The protruding end of the limiting piston rod is located outside the limiting cylinder, and the protruding end of the limiting piston rod is connected to the outer side wall of the abutment pin.

[0011] Preferably, the abutment pin is symmetrically provided with limiting blocks on the outer side wall of the annular surface, and the inner side of the housing body is provided with a limiting groove for the sliding installation of the limiting blocks, and the limiting groove is connected to the inner space of the positioning slot. The bottom outer wall of the positioning strip is set as an arc-shaped structure, the contact surface between the abutment pin and the positioning strip is set as a hemispherical structure, and the two outer walls of the positioning strip near the bottom are provided with arc-shaped abutment grooves for the abutment pin to abut and install.

[0012] Preferably, the limiting cylinder is filled with damping fluid, and a cylindrical overflow groove is circumferentially opened on the outer wall of the side of the limiting piston rod located at the piston disc position.

[0013] Preferably, the support adjustment assembly includes a support base, friction pads, positioning elements, positioning grooves, and support springs. The support bases are symmetrically and slidably installed on the bottom outer wall of the support base plate. Friction pads are provided on the side outer walls of adjacent positions of the two sets of support bases. Positioning elements are symmetrically provided on the top outer walls of the two sets of support bases. Four sets of positioning grooves for sliding installation of the positioning elements are correspondingly opened on the bottom outer wall of the support base plate. Support springs are connected and installed between the side outer wall of the positioning element and the inner wall of the bottom of the positioning groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. The layered locking mechanism of this group meal insulated box, through the installation of detachable inner and upper partitions inside the box, and the introduction of T-shaped connectors and limiting strips, forms a flexible layered adjustment component. It can be quickly disassembled and reassembled according to the height and size of different lunch boxes in the group meal. This layered design breaks the limitations of traditional fixed partitions, realizes flexible configuration of space height, not only improves the internal volume utilization rate, but also makes a single insulated box adaptable to the stacking needs of multiple lunch boxes. In addition, the partitions are designed to be detachable, which facilitates the maintenance and cleaning of the box. The overall practical effect is good.

[0016] 2. When in use, the layered locking mechanism of this group meal insulated box uses a contact plug assembly with buffer damping and automatic locking functions. Through the arc-shaped contact groove and the hemispherical contact pin, the locking plug and the box body are self-positioned by multiple points of contact. Combined with the buffer braking effect provided by the limit piston and damping fluid, it can resist the shaking and impact during transportation, prevent the layered plates from shifting and falling off, thereby greatly improving the locking stability and impact resistance of the overall structure. Attached Figure Description

[0017] Figure 1 shows a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 shows a three-dimensional structural diagram of the bottom partition plate installation of this utility model;

[0019] Figure 3 shows a three-dimensional structural diagram of the bottom partition, inner partition, and upper partition of this utility model.

[0020] Figure 4 shows a three-dimensional structural diagram of the installation of the contact post and the arc-shaped contact groove of this utility model;

[0021] Figure 5 shows an enlarged three-dimensional structural diagram of point A in Figure 4 of this utility model;

[0022] Figure 6 shows a three-dimensional structural diagram of the support base and friction pad of this utility model.

[0023] Figure 7 shows an enlarged three-dimensional structural diagram of point B in Figure 6 of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Box cover body; 3. Support base plate; 4. Bottom partition; 401. Positioning insert; 402. Auxiliary insert; 403. Positioning slot; 5. Divider adjustment assembly; 501. Inner partition; 502. Upper partition; 503. Limiting insert; 504. Connector; 505. T-shaped connector groove; 6. Abutment connector assembly; 601. Cylindrical groove; 602. Limiting cylinder; 603. Limiting piston rod; 604. Abutment spring; 605. Abutment pin; 606. Limiting block; 607. Limiting slide groove; 608. Arc-shaped abutment groove; 7. Support adjustment assembly; 701. Support base; 702. Friction pad; 703. Positioning component; 704. Positioning slide groove; 705. Support spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-7. This utility model provides a technical solution: a layered locking mechanism for a group meal insulated box, including a box body 1, a box cover body 2, a supporting base plate 3, and a bottom partition plate 4. The box cover body 2 is rotatably installed on the upper end of the box body 1, and the supporting base plate 3 is fixedly installed on the outer wall of the bottom end of the box body 1. Two sets of bottom partition plates 4 are provided, and both sets of bottom partition plates 4 are located inside the box body 1. Positioning inserts 401 are symmetrically arranged on the outer walls of both sides of the bottom partition plate 4. An auxiliary insert 402 is fixedly installed on the top outer wall of one set of positioning inserts 401. Two sets of positioning slots 403 are symmetrically opened on the inner walls of both sides of the box body 1 for sliding installation of the positioning inserts 401 and the auxiliary inserts 402.

[0027] A partition adjustment component 5 is provided above the bottom partition 4, an abutment insertion component 6 is provided on the outer side of the bottom partition 4, and a support adjustment component 7 is provided below the support base 3.

[0028] The partition adjustment assembly 5 includes an inner partition 501, an upper partition 502, a limiting insert 503, a connector 504, and a T-shaped connector slot 505. The inner partition 501 is fitted to the top outer wall of the bottom partition 4, and the upper partition 502 is fitted to the top outer wall of the inner partition 501. Both the inner partition 501 and the upper partition 502 are fitted to the side outer wall of the auxiliary insert 402. The limiting insert 503 is fixedly installed on the side outer wall of the upper partition 502, and the limiting insert 503 is aligned with the positioning insert 401. For sliding connection, the top and bottom outer walls of the inner partition 501 are provided with plug-in parts 504. The plug-in parts 504 are composed of T-shaped plug-in strips and plug-in blocks. The bottom outer walls of the upper partition 502 and the bottom outer walls of the bottom partition 4 are provided with T-shaped plug-in grooves 505 for the T-shaped plug-in strips to be plugged in. The part of the plug-in part 504 located at the plug-in block position is slidably connected to the positioning plug-in strip 401. The total height of the inner partition 501 and the upper partition 502 is equal to the height of the auxiliary plug-in strip 402.

[0029] The total height of the inner partition 501 and the upper partition 502 is described in detail here so that when they are installed inside the device, they can be kept at the same height as the overall height of the auxiliary insert 402, which facilitates installation.

[0030] The contact insertion assembly 6 includes a cylindrical groove 601, a limiting cylinder 602, a limiting piston rod 603, a contact spring 604, and a contact pin 605. Cylindrical grooves 601 are symmetrically formed on the inner walls of both sides of the housing body 1 at the positioning slot 403. Limiting cylinders 602 are fixedly installed on the inner walls of the bottom of both sets of cylindrical grooves 601. A limiting piston rod 603 is slidably installed inside the limiting cylinder 602. A contact spring 604 is connected between the outer side wall of the limiting piston rod 603 and the inner wall of the bottom of the limiting cylinder 602. The protruding end of the limiting piston rod 603 is located outside the limiting cylinder 602. The protruding end of 03 is connected to the side outer wall of the abutment post 605. The side outer wall of the abutment post 605 located on the annular surface is symmetrically provided with limiting blocks 606. The interior of the housing body 1 is correspondingly provided with a limiting groove 607 for the sliding installation of the limiting block 606. The limiting groove 607 is connected to the internal space of the positioning slot 403. The bottom outer wall of the positioning insert 401 is set as an arc-shaped structure. The contact surface between the abutment post 605 and the positioning insert 401 is set as a hemispherical structure. The two outer walls of the positioning insert 401 near the bottom are correspondingly provided with arc-shaped abutment grooves 608 for the abutment post 605 to abut and install.

[0031] The bottom outer wall of the positioning insert 401 is designed with an arc shape, and the contact surface between the abutting post 605 and the positioning insert 401 is designed with a hemispherical shape. Thus, when the positioning insert 401 comes into contact with the abutting post 605, the abutting post 605 can be pushed into the interior of the cylindrical groove 601 through the abutting action of the arc and hemispherical surfaces, providing space for the positioning insert 401 to pass through.

[0032] The limiting cylinder 602 is filled with damping fluid, and the limiting piston rod 603 has a cylindrical overflow groove that runs through the circumference of the outer side wall of the piston disc.

[0033] The damping fluid, combined with the cylindrical overflow groove design, utilizes the incompressibility of the liquid to slow down and buffer the aforementioned limiting piston rod 603, thereby improving the overall durability of the device.

[0034] The support adjustment assembly 7 includes a support base 701, a friction pad 702, a positioning element 703, a positioning groove 704, and a support spring 705. The support base 701 is symmetrically and slidably installed on the bottom outer wall of the support base plate 3. Friction pads 702 are provided on the side outer walls of adjacent positions of the two sets of support bases 701. Positioning elements 703 are symmetrically provided on the top outer walls of the two sets of support bases 701. Four sets of positioning grooves 704 are correspondingly opened on the bottom outer wall of the support base plate 3 for the positioning elements 703 to slide on. A support spring 705 is connected between the side outer wall of the positioning element 703 and the inner wall of the bottom of the positioning groove 704.

[0035] Working principle: Referring to Figures 1 and 3-5, when the bottom partition 4 needs to be installed inside the housing body 1, simply hold the upper end of the inner partition 501, and then simultaneously move the inner partition 501, upper partition 502, and bottom partition 4. Install the positioning strip 401 into the corresponding positioning slot 403 after adjusting it to the appropriate position. When the positioning strip 401 abuts against the contact pin 605 during movement, the contact action between the arc-shaped surface at the bottom of the positioning strip 401 and the hemispherical surface on the side of the contact pin 605 causes the contact pin 605 to move into the cylindrical groove 601 under the squeezing action of the positioning strip 401, providing space for the installation of the positioning strip 401. When the abutment pin 605 moves, it will automatically drive the limiting piston rod 603 to slide inside the limiting cylinder 602. At the same time, the abutment spring 604 is in a contracted state due to the squeezing action of the limiting piston rod 603. As the limiting piston rod 603 moves, the damping fluid inside the limiting cylinder 602 flows from one side of the piston plate to the other side through the overflow groove, and in this process, it plays a role in slowing down and buffering the limiting piston rod 603. When the positioning insert 401 moves to the bottom of the positioning slot 403, the installation position of the abutment pin 605 coincides with that of the arc-shaped abutment groove 608. Then, the reaction force generated by the squeezing of the abutment spring 604 will automatically push the abutment pin 605 out and make it abut into the interior of the arc-shaped abutment groove 608.

[0036] Due to the structural design of the arc-shaped contact groove 608, after removing the bottom partition 4 and pulling it upwards, the arc-shaped guide effect of the contact pin 605 and the arc-shaped contact groove 608 can automatically move the contact pin 605 out of the arc-shaped contact groove 608.

[0037] Referring to Figure 3, when there are differences in the size of the group meal boxes, the inner partition 501 and the upper partition 502 can be removed to accommodate the size of the meal boxes. Smaller meal boxes can be placed within the enclosure of the bottom partition 4, while larger meal boxes can be stacked directly on top of the placed smaller meal boxes. The principle of removing the inner partition 501 and the upper partition 502 is the same, which means that the connectors 504 and T-shaped connectors 505 between adjacent plates can be disengaged. Subsequent installation is the same.

[0038] Referring to Figures 6 and 7, when the main body 1 needs to be stably placed on the push-down trolley base, simply pull both sets of handles outward simultaneously. The movement of the handles will automatically move the support base 701. When the support base 701 moves, it will automatically move the positioning component 703 inside the positioning groove 704. At this time, the support spring 705 is compressed by the positioning component 703. When the two sets of support bases 701 are locked to both sides of the trolley base, the handles are released. The reaction force generated by the compression of the support spring 705 will automatically position the two sets of support bases 701 against both sides of the trolley base. The friction pad 702 is designed to increase the contact friction between the device and the outside of the trolley base, making it more stably positioned on the side of the trolley.

[0039] The specific details regarding how the main body 1 and the lid 2 are hinged and locked using fasteners, as well as how the main body 1 and the lid 2 are insulated, can be found in the existing technical structure of insulated catering boxes. These are all existing conventional operating techniques and have not been improved, so they will not be described in detail here.

[0040] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A layered locking mechanism for a group meal insulated box, comprising a box body (1), a box cover body (2), a supporting base plate (3), and a bottom partition plate (4), characterized in that: The upper end of the box body (1) is rotatably mounted with a box cover body (2), and the bottom outer wall of the box body (1) is fixedly mounted with a support base plate (3). Two sets of bottom partitions (4) are provided, and both sets of bottom partitions (4) are located inside the box body (1). Positioning inserts (401) are symmetrically arranged on both sides of the outer wall of the bottom partition (4). An auxiliary insert (402) is fixedly installed on the top outer wall of one set of positioning inserts (401). Two sets of positioning slots (403) for sliding installation of positioning inserts (401) and auxiliary inserts (402) are symmetrically opened on both sides of the inner wall of the box body (1). A separation adjustment component (5) is provided above the bottom partition (4), an abutment insertion component (6) is provided on the outer side of the bottom partition (4), and a support adjustment component (7) is provided below the support base plate (3).

2. The layered locking mechanism for a group meal insulated box according to claim 1, characterized in that: The partition adjustment assembly (5) includes an inner partition (501), an upper partition (502), a limiting insert (503), a connector (504), and a T-shaped insert groove (505). The inner partition (501) is fitted to the top outer wall of the bottom partition (4), and the upper partition (502) is fitted to the top outer wall of the inner partition (501). Both the inner partition (501) and the upper partition (502) are fitted to the side outer wall of the auxiliary insert (402). (502) has a limiting insert (503) fixedly installed on the outer side wall, and the limiting insert (503) and the positioning insert (401) are slidably connected. The top and bottom outer walls of the inner partition (501) are provided with plug-in parts (504). The plug-in parts (504) are composed of T-shaped plug-in strips and plug-in blocks. The bottom outer wall of the upper partition (502) and the bottom outer wall of the bottom partition (4) are provided with T-shaped plug-in grooves (505) for the T-shaped plug-in strips to be plugged in.

3. The layered locking mechanism for a group meal insulated box according to claim 2, characterized in that: The portion of the connector (504) located at the connector block position is slidably connected to the positioning insert (401), and the total height of the inner partition (501) and the upper partition (502) is equal to the height of the auxiliary insert (402).

4. The layered locking mechanism for a group meal insulated box according to claim 1, characterized in that: The abutment insertion assembly (6) includes a cylindrical groove (601), a limiting cylinder (602), a limiting piston rod (603), an abutment spring (604), and an abutment pin (605). The inner walls of the two sides of the housing body (1) located at the positioning slot (403) are symmetrically provided with cylindrical grooves (601). The inner walls of the bottom of the two sets of cylindrical grooves (601) are fixedly installed with limiting cylinders (602). The limiting piston rod (603) is slidably installed inside the limiting cylinder (602). The outer side wall of the limiting piston rod (603) is connected to the inner wall of the bottom of the limiting cylinder (602) with an abutment spring (604). The protruding end of the limiting piston rod (603) is located outside the limiting cylinder (602), and the protruding end of the limiting piston rod (603) is connected to the outer side wall of the abutment pin (605).

5. The layered locking mechanism for a group meal insulated box according to claim 4, characterized in that: The abutment post (605) is symmetrically provided with limiting blocks (606) on the outer side wall of the annular surface. The inner side of the box body (1) is provided with a limiting groove (607) for the limiting block (606) to slide and install. The limiting groove (607) is connected to the inner space of the positioning slot (403). The bottom outer wall of the positioning insert (401) is set as an arc-shaped structure. The contact surface between the abutment post (605) and the positioning insert (401) is set as a hemispherical structure. The two outer walls of the positioning insert (401) near the bottom are provided with arc-shaped abutment grooves (608) for the abutment post (605) to abut and install.

6. The layered locking mechanism for a group meal insulated box according to claim 4, characterized in that: The limiting cylinder (602) is filled with damping fluid, and the limiting piston rod (603) has a cylindrical overflow groove circumferentially opened on the outer side wall of the piston disc.

7. The layered locking mechanism for a group meal insulated box according to claim 1, characterized in that: The support adjustment assembly (7) includes a support base (701), a friction pad (702), a positioning element (703), a positioning groove (704), and a support spring (705). The support base (701) is symmetrically and slidably installed on the bottom outer wall of the support base plate (3). Friction pads (702) are provided on the side outer walls of the two sets of support bases (701) at adjacent positions. Positioning elements (703) are symmetrically provided on the top outer walls of the two sets of support bases (701). Four sets of positioning grooves (704) are correspondingly opened on the bottom outer wall of the support base plate (3) for the positioning elements (703) to slide on. A support spring (705) is connected between the side outer wall of the positioning element (703) and the inner wall of the bottom of the positioning groove (704).

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