A heat-insulating drawer

Abstract

The utility model discloses a kind of heat preservation drawers, including cabinet and drawer, cabinet and drawer are slidably connected between through guide rail, heating element is equipped on cabinet or drawer;Drawer includes side plate, bottom plate, backboard and panel, bottom plate, side plate and backboard are enclosed to form the storage cavity with opening, panel and bottom plate are connected by damping hinge, to make panel can be up and down overturn and block or open the opening;Damping hinge includes fixed hinge and movable hinge, bottom plate is outwardly extended to form support portion relative to the side plate, fixed hinge is fixed on support portion, movable hinge is rotatably connected with fixed hinge, movable hinge has extension arm, support boss is equipped on panel, extension arm is fixed on support boss. The support portion that bottom plate is outwardly extended relative to side plate is used to install fixed hinge, does not occupy the area space of bottom plate in storage cavity, so that the whole bottom plate is flat, tray can be directly attached on bottom plate, and will not be in inclined state.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation equipment technology, and more specifically, to a thermal insulation drawer. Background Technology

[0002] Existing warming drawers have shelves inside, with food placed on trays, which in turn are placed on the shelves. The food is kept warm by heating the drawer's interior. Due to limited kitchen space, some warming drawers are designed as flip-down doors. In these models, the internal drawers cannot be pulled out, making cleaning inconvenient. Furthermore, when storing larger items for baking, users may need to flip the door down to place the tray.

[0003] However, in existing downward-opening warming cabinets, the hinges are located directly on the bottom plate inside the cabinet, which is also relatively large and exposed to the outside, affecting the appearance of the warming cabinet; or a cover plate is added to the bottom plate to cover the hinge part, but this will cause the two sides of the bottom plate inside the cabinet to have protruding parts, and the tray cannot be directly attached to the bottom plate when placed, the tray is tilted and is prone to slipping. Utility Model Content

[0004] The purpose of this utility model is to provide a heat preservation drawer to solve the problem that the tray of the existing heat preservation cabinet is prone to slipping off the bottom plate and affecting the appearance.

[0005] The heat-insulating drawer of this utility model can be achieved through the following technical solutions:

[0006] A thermal drawer includes a cabinet and a drawer, wherein the cabinet and the drawer are slidably connected by a guide rail, and a heating element is provided on the cabinet or the drawer; the drawer includes a side panel, a bottom panel, a back panel, and a front panel, wherein the bottom panel, side panel, and back panel enclose a storage cavity with an opening, and the front panel is connected to the bottom panel by a damping hinge, allowing the front panel to be flipped up and down to seal or open the opening; the damping hinge includes a fixed hinge and a movable hinge, the bottom panel extends outward relative to the side panel to form a support portion, the fixed hinge is fixed to the support portion, the movable hinge is rotatably connected to the fixed hinge, the movable hinge has an extension arm, and a support boss is provided on the front panel, with the extension arm fixed to the support boss.

[0007] In one embodiment, there is a gap between the side panel and the cabinet body, and the support is located at the gap.

[0008] In one embodiment, the cabinet is provided with a pop-up mechanism, the pop-up mechanism has a swing arm, the swing arm has a roller, and a hook is installed on the back panel near the cabinet, the roller and the hook are detachably engaged.

[0009] In one embodiment, a bracket is provided on the back plate, and a card slot is provided on the bracket, and the hook is embedded in the card slot.

[0010] In one embodiment, a contact sensor is installed on the side of the back plate close to the cabinet body. The bracket is in a "C" shape. One end of the bracket is fixed on the back plate, and the other end is fixed on the bottom plate. The card slot is located at the waist position of the bracket.

[0011] In one embodiment, the bottom plate includes a storage plate and a support tray. The storage plate is located on the support tray. The support portion is provided on the support tray, and the heating element is located between the storage plate and the support tray.

[0012] In one embodiment, a hem is provided at the edge of the support tray and faces towards the storage plate.

[0013] In one embodiment, a first magnetic member is provided on the side plate, and a second magnetic member is provided on the panel. The first magnetic member and the second magnetic member have opposite magnetic polarities, and the first magnetic member is also located at the gap position.

[0014] In one embodiment, an ultraviolet germicidal lamp is provided on the drawer, and the ultraviolet germicidal lamp is installed on the side of the back plate facing the storage cavity.

[0015] Compared with the prior art, the beneficial effects of the heat preservation drawer of the present utility model are as follows: The panel and the bottom plate are connected by a damping hinge, which can control the opening and closing angle of the panel. The support portion extending outward from the bottom plate relative to the side plate is used to install a fixed hinge, which does not occupy the area space of the bottom plate in the storage cavity, making the entire bottom plate flat. The tray can be directly attached to the bottom plate without being in a tilted state. The moving hinge has an extension arm, and the extension arm is installed on the panel support boss, which can make the height difference between the overall panel and the bottom plate smaller. When placing a tray with a longer length, the inclination of the tray at the position on the panel is smaller and it is not easy to slide off. BRIEF DESCRIPTION OF THE DRAWINGS <**********>

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. The following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the heat preservation drawer of the present utility model in the open door state;

[0018] Figure 2 is Figure 1Enlarged view of section A in the middle;

[0019] Figure 3 This is a schematic diagram of the support tray structure of the insulated drawer of this utility model;

[0020] Figure 4 This is one of the cross-sectional views of the insulated drawer of this utility model in the closed state;

[0021] Figure 5 This is the second sectional view of the insulated drawer of this utility model in the closed state;

[0022] Figure 6 This is a schematic diagram of the structure of the insulated drawer of this utility model when the drawer is pulled outwards while the door is closed;

[0023] Figure 7 yes Figure 5 Enlarged view of section B in the middle.

[0024] The diagram indicates the following: 1. Cabinet body; 11. Pop-up mechanism; 111. Swing arm; 112. Roller; 2. Drawer; 21. Side panel; 211. First magnetic closure; 22. Base plate; 221. Shelf; 222. Support plate; 2221. Support section; 2222. Folded edge; 23. Back panel; 231. Hook; 232. Bracket; 2321. Top end; 2322. Waist section; 2323. Bottom end; 2324. Slot; 24. Front panel; 241. Support boss; 242. Second magnetic closure; 25. Opening; 26. Storage cavity; 26. Gap; 27. UV germicidal lamp; 28. Shelf; 3. Guide rail; 4. Damping hinge; 41. Fixed hinge; 42. Moving hinge; 421. Extension arm; 43. Positioning plate; 5. Contact sensor; 6. PCB controller. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0026] Please see Figure 1-7A type of insulated drawer includes a cabinet body 1 and a drawer 2. The cabinet body 1 and drawer 2 are slidably connected by a guide rail 3. The drawer 2 can be pulled outward relative to the cabinet body 1 for easy cleaning by the user. The cabinet body 1 or drawer 2 is equipped with a heating element (not shown in the figure). The heating element can be a heating tube, which is connected to a PCB controller 6. The PCB controller 6 is connected to a power cord. When the power cord is powered on, it can control the heating element to be powered on. After the heating element is powered on, it heats up and keeps the food in the drawer 2 warm. This technology is existing technology and will not be described in detail here.

[0027] Drawer 2 includes side panels 21, bottom panels 22, back panels 23, and front panels 24. The bottom panels 22, side panels 21, and back panels 23 together form a storage cavity 26 with an opening 25. The opening 25 is directly opposite the back panel 23. A shelf 28 is installed on the side panels 21, and trays can be placed on the shelf 28, allowing multiple trays to be placed inside the drawer 2 to hold more food or tableware. The front panel 24 is connected to the bottom panel 22 by a damping hinge 4, allowing the front panel 24 to be flipped up and down to close or open the opening 25. The damping hinge 4 can control the angle at which the front panel 24 flips down. The user can adjust the size of the opening 25 as needed. For example, when the user needs to dissipate heat in the drawer 2 and avoid excessive water vapor from insulation, the opening 25 can be partially opened; when the user uses the drawer 2 as a storage shelf and needs to place a long tray, the opening 25 can be fully opened so that the tray can extend out of the opening 25.

[0028] The damping hinge 4 includes a fixed hinge 41 and a movable hinge 42. The base plate 22 extends outward relative to the side plate 21 to form a support portion 2221. It can be understood that the support portion 2221 is located outside the storage cavity 26, so when the user needs to place a tray on the base plate 22, the tray can directly adhere to the entire base plate 22. The fixed hinge 41 is fixed to the support portion 2221, and the movable hinge 42 is rotatably connected to the fixed hinge 41. The entire damping hinge 4 has a small volume and requires less installation space, making the overall appearance of the insulated drawer more aesthetically pleasing. In this embodiment, the fixed hinge 41 is in a straight line shape, and the movable hinge 42 includes a cylinder and an extension arm 421. The cylinder is rotatably connected to the fixed hinge 41, and the extension arm 421 is integrally formed with the cylinder. To simplify the structure of the support portion 2221, a positioning plate 43 can be added and fixed to the support portion 2221, with the fixed hinge 41 fixed to the positioning plate 43. The movable hinge 42 has an extension arm 421, and the panel 24 has a support boss 241. The extension arm 421 is fixed to the support boss 241. When the panel 24 is flipped down to a horizontal position, the opening 25 is fully opened. At this time, the extension arm 421 is also horizontal. The two support bosses 241 can support the tray. Therefore, the height difference between the panel 24 and the base plate 22 is small, and the overall tilt of the tray after placement is small, making it less likely to slip.

[0029] In some embodiments, the base plate 22 includes a shelf 221 and a support plate 222. The shelf 221 is located on the support plate 222, and one side of the support plate 222 extends outward to form a support portion 2221. The heating element is located between the shelf 221 and the support plate 222. The guide rail 3 can be installed on the side plate 21, or the edge of the support plate 222 can form a slide rail. The cabinet 1 is equipped with pulleys, which is prior art. The cabinet 1 and the outer side plate of the drawer 2 are slidably connected, so that there is a gap 26 between the side plate 21 and the cabinet 1. The support portion 2221 is located at the gap 26, and therefore the fixed hinge 41 is also located at the gap 26, without occupying the space of the shelf 221 or the support plate 222 located in the storage cavity 26. The edge of the support tray 222 is bent towards the shelf 221 to form a folded edge 2222. Specifically, all four sides of the support tray 222 have folded edges 2222, which can better wrap around the side panel 21 and also support the shelf 221, creating a certain distance between the shelf 221 and the bottom of the support tray 222, facilitating the installation of the heating element. The movable hinge 42 is located in the gap between the folded edge 2222 and the cabinet 1, and the height of the movable hinge 42 can be adjusted according to the size of the gap. Preferably, the height of the movable hinge 42 is equal to the height between the shelf 221 and the bottom of the cabinet 1, ensuring that the tray is completely horizontal within the cabinet 1.

[0030] Please refer to 4. Figure 5 as well as Figure 7 The cabinet 1 contains a spring-loaded mechanism 11 with a swing arm 111 and rollers 112. A hook 231 is installed on the back panel 23 near the cabinet 1. The rollers 112 and hooks 231 are detachably engaged. When the drawer 2 is embedded in the cabinet 1, the rollers 112 are engaged with the hooks 231. Pressing the panel 24 pushes the drawer 2 against the swing arm 111, causing it to spring back and separate the rollers 112 from the hooks 231, thus separating the drawer 2 from the cabinet 1. Pressing the panel 24 again slowly engages the rollers 112 with the hooks 231, locking the drawer 2 to the cabinet 1. The spring-loaded mechanism 11 inside the cabinet 1 prevents the drawer 2 from sliding out during transport; it also facilitates the user's pulling out of the drawer 2.

[0031] Specifically, the back panel 23 is provided with a bracket 232, and the bracket 232 has a slot 2324. The hook 232 is embedded in the slot 2324, so that the hook 232 can be securely installed on the back panel 23. In this embodiment, a contact sensor 5 is installed on the side of the back panel 23 near the cabinet 1. The contact sensor 5 is electrically connected to the PCB controller 6. When the user pushes the drawer 2 inward until the cabinet 1 is locked, the contact sensor 5 abuts against the cabinet 1, and the heating element is in a powered state. When the drawer 2 is pulled outward, the contact sensor 5 separates from the cabinet 1, the PCB controller 6 receives the signal, and controls the heating element to be in a de-energized state, so as to ensure that when the drawer 2 is pulled out for cleaning or to take out food, the warming drawer is in a stopped heating state, avoiding energy waste. Because the contact sensor 5 is installed on the back panel 23, the back panel 23 cannot be directly attached to the cabinet 1. Accordingly, the bracket 232 is "U"-shaped. It can be understood that the bracket 232 is formed by the upper end 2321, the waist section 2322, and the lower end 2323 sequentially surrounding each other. The upper end 2321 of the bracket 232 is fixed to the back panel 23, and the lower end 2323 is fixed to the base plate 22. The slot 2324 is located at the waist section 2322, so the hook 231 can be directly aligned with the pop-up door opener 11, making the door opening and closing smoother and less strenuous, avoiding jamming. More specifically, the lower end 2323 is fixed to the support plate 222.

[0032] Furthermore, drawer 2 is also equipped with an ultraviolet germicidal lamp 27, which is installed on the side of the back panel 23 facing the storage cavity 26, so that the warming drawer can be used to place plates and other tableware for disinfection, or to warm plates and disinfect at the same time.

[0033] Please refer to the following: Figure 1 The side panel 22 is equipped with a first magnetic clasp 211, and the front panel 24 is equipped with a second magnetic clasp 242. The first magnetic clasp 211 and the second magnetic clasp 242 have opposite magnetic properties, meaning they can be attracted to each other. When the user does not need to open the front panel 24, the attraction of the first magnetic clasp 211 and the second magnetic clasp 242 allows the front panel 24 to be more stably connected to the base plate 22, preventing accidental tipping of the front panel 24. When the user needs to open the front panel 24 to use it as a shelf, they can simply pull the front panel 24 down. In this embodiment, the first magnetic clasp 211 is also located at the gap 26, making full use of the space between the drawer 2 and the cabinet 1 without affecting the user's ability to retrieve or place trays.

[0034] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. The protection scope of this utility model patent should be determined by the appended claims.

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