A type of insulated food cart

Abstract

This application discloses an insulated food cart, which includes a body, two upright plates, multiple placement plates, two screws, two sets of drive mechanisms, a heating assembly, and a traveling mechanism. The body has a top plate and a bottom plate arranged opposite each other in a first direction, and a door and a back plate arranged opposite each other in a second direction. The two upright plates are spaced apart within the body, and each upright plate has a sliding groove. The multiple placement plates are spaced apart between the two upright plates, and each placement plate has two sliders fixed on its side. The two screws are rotatably connected to two drive spaces, and each screw has multiple threaded areas spaced apart along its own axial direction. Each slider is located within a threaded area, and the thread pitch within each threaded area is different. This application drives the two screws to rotate synchronously through the drive mechanisms, thereby moving different placement plates by different distances, adjusting the distance between the placement plates, and facilitating the placement of food of different sizes.

Description

Technical Field

[0001] This application relates to the field of food insulation technology, and more particularly to an insulated food cart. Background Technology

[0002] Insulated food carts are vehicles specifically designed for storing and transporting food. Their main function is to maintain food at a stable temperature to ensure its freshness, taste, and quality. These vehicles are commonly used in large restaurants, hotels, banquets, hospitals, schools, and other similar settings to provide hot meals or keep food warm for large numbers of people.

[0003] Traditional insulated food carts have multiple partitions inside, with food placed on the partitions via plates. However, the spacing between the partitions is difficult to adjust, making it inconvenient to place food of different sizes. Utility Model Content

[0004] The main purpose of this application is to provide an insulated food cart that solves the problem of the difficulty in adjusting the distance between the partitions of traditional insulated food carts.

[0005] To achieve the above objectives, this application provides an insulated food cart, which includes a body, two upright plates, multiple placement plates, two screws, two sets of drive mechanisms, a heating assembly, and a walking mechanism. The body has a top plate and a bottom plate arranged opposite each other in a first direction, and a door and a back plate arranged opposite each other in a second direction. The first direction is the same as the height direction of the body, and the second direction is the same as the width direction of the body. The two upright plates are spaced apart in the body in a third direction and perpendicular to the back plate. The two upright plates divide the interior of the body into a drive space, a placement space, and a drive space arranged sequentially in a third direction. Each upright plate has a sliding groove extending along the first direction. The multiple placement plates are spaced apart between the two upright plates in the first direction and have the freedom to slide along the first direction. Two sliders are fixed on the sides of each of the placement plates to slide in the two grooves, and each slider extends into the driving space on the side of the corresponding upright plate away from the other upright plate; two screws are rotatably connected to the two driving spaces and their axial direction is the same as the first direction. The screws have a degree of freedom to rotate around the first direction. In the same driving space, the screws pass through each slider and are threadedly connected to each slider. The screws have multiple threaded areas spaced apart along their own axial direction. Each slider is located in one of the threaded areas, and the thread pitch in each threaded area is different; two sets of driving mechanisms are connected to the two screws respectively, and the driving mechanisms provide rotational driving force for the corresponding screws; a heating assembly is disposed inside the back plate; and a walking mechanism is disposed on the side of the bottom plate away from the top plate.

[0006] Optionally, in the direction away from the top plate, each of the threaded regions on the screw is sequentially named from the first threaded region to the nth threaded region, and the thread pitch of each threaded region increases or decreases sequentially, where n is the number of placement plates.

[0007] Optionally, the drive mechanism includes a motor, a driving cone wheel, and a driven cone wheel. The motor is located outside the housing and its output shaft extends into the drive space. The driving cone wheel is located in the drive space and is sleeved on the outer periphery of the motor's output shaft. The driven cone wheel is sleeved on the outer periphery of the screw and meshes with the driving cone wheel.

[0008] Optionally, the back plate is provided with an air inlet and an air outlet spaced apart in a first direction; the heating assembly includes a cylinder, a fan and a heating wire, the cylinder is disposed in the box and one end is attached to the air inlet; the fan is disposed in the cylinder; the heating wire is disposed on the side of the fan away from the back plate and located in the cylinder.

[0009] Optionally, the heating assembly further includes an orifice plate disposed on the inner periphery of the end of the cylinder away from the back plate.

[0010] Optionally, the walking mechanism includes four omnidirectional wheels, which are located at the four corners of the base plate.

[0011] Optionally, the placement plate includes a fixed plate and a sliding plate. The fixed plate is fixed to the corresponding slider. The fixed plate has a through groove extending in the second direction on the side opposite to the base plate. The sliding plate is slidably fitted in the through groove and has the freedom to slide in the second direction.

[0012] Optionally, the placement plate further includes a first handle, which is fixed to the side of the sliding plate away from the back plate.

[0013] Optionally, in the second direction, there are gaps between the fixing plate and the back plate as well as the door.

[0014] Optionally, the insulated food cart may also include a fence, which is located on the side of the top plate away from the bottom plate.

[0015] The insulated food cart proposed in this application embodiment allows for the placement of food plates on the placement plates during use. When the distance between the placement plates needs to be adjusted, a drive mechanism drives two screws to rotate synchronously, thereby moving sliders in different threaded areas along a first direction by different distances. This further moves the different placement plates by different distances, thereby adjusting the distance between the placement plates to facilitate the placement of food of different sizes. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of an insulated food cart according to an embodiment of this application;

[0017] Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment;

[0018] Figure 3 This is a schematic diagram of the internal structure of the box according to an embodiment of this application;

[0019] Figure 4 for Figure 3 A structural schematic diagram from another perspective of the embodiment;

[0020] Figure 5 This is a structural breakdown diagram of the heating component in an embodiment of this application.

[0021] In the diagram: 1. Box body; 11. Box door; 12. Air inlet; 13. Air outlet; 14. Fence; 15. Second handle; 2. Upright plate; 21. Slide groove; 3. Placement plate; 31. Fixing plate; 32. Sliding plate; 33. First handle; 4. Slider; 5. Screw; 6. Drive mechanism; 61. Motor; 62. Driving cone wheel; 63. Driven cone wheel; 7. Heating assembly; 71. Cylinder; 72. Fan; 73. Heating wire; 74. Perforated plate; 8. Casters.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] refer to Figures 1-5 It should be understood that, Figure 5 The connections between the various components should be like Figure 4 As compact as in the middle, this is only for illustrative purposes and will Figure 5The components are shown disassembled for easier understanding. This application provides an insulated food cart, which may include a body 1, two upright plates 2, multiple placement plates 3, two screws 5, two sets of drive mechanisms 6, a heating assembly 7, and a walking mechanism. The body 1 has a top plate and a bottom plate arranged opposite each other in a first direction, and a door 11 and a back plate arranged opposite each other in a second direction. The first direction is the same as the height direction of the body 1, and the second direction is the same as the width direction of the body 1. The two upright plates 2 are spaced apart in the third direction within the body 1 and perpendicular to the back plate. The two upright plates 2 divide the interior of the body 1 into a drive space, a placement space, and a drive space arranged sequentially in the third direction. The upright plates 2 are provided with a sliding groove 21 extending along the first direction. The multiple placement plates 3 are spaced apart between the two upright plates 2 in the first direction and Each plate 3 has a degree of freedom to slide along the first direction. Two sliders 4 are fixed on the side of each plate 3 to slide with two grooves 21. Each slider 4 extends into the driving space on the side of the corresponding plate 2 away from the other plate 2. Two screws 5 are rotatably connected to the two driving spaces and their axial direction is the same as the first direction. The screws 5 have a degree of freedom to rotate around the first direction. In the same driving space, the screws 5 pass through each slider 4 and are threadedly connected to each slider 4. The screws 5 have multiple threaded areas distributed at intervals along their own axial direction. Each slider 4 is located in a threaded area and the thread pitch in each threaded area is different. Two sets of driving mechanisms 6 are connected to the two screws 5 respectively. The driving mechanisms 6 provide rotational driving force for the corresponding screws 5. The heating component 7 is located inside the back plate. The walking mechanism is located on the side of the bottom plate away from the top plate.

[0028] The insulated food cart proposed in this application embodiment allows for the placement of food plates on the placement plates 3 during use. When the distance between the placement plates 3 needs to be adjusted, the drive mechanism 6 drives two screws 5 to rotate synchronously, thereby causing the sliders 4 in different threaded areas to move different distances along the first direction, further causing the different placement plates 3 to move different distances, thereby adjusting the distance between the placement plates 3 to facilitate the placement of food of different sizes.

[0029] Among them, such as Figure 1 As shown, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. When the food cart is in use, the first direction can be the same as the direction of gravity, and the bottom plate is located above the top plate, so that the food cart can be moved by the walking mechanism.

[0030] In addition, the cross-section of box 1, which is parallel to the horizontal direction, is rectangular. The direction of the long side of the rectangle is the third direction, and the direction of the short side of the rectangle is the second direction.

[0031] Taking a slider 4 on one side of a placement plate 3 as an example, the slider 4 is slidably engaged with the slide groove 21, so that the slider 4 can only slide along the extension direction of the slide groove 21, which is the first direction. The screw 5 passes through the slider 4 and is threadedly connected to the slider 4. The axis of the screw 5 is the same as the first direction. Thus, when the screw 5 rotates, it can drive the slider 4 to move up and down along the first direction.

[0032] Within a driving space, the rotation of the screw 5 will cause multiple sliders 4 to move up and down together along the first direction. The direction of movement of each slider 4 is related to the direction of thread rotation in different threaded areas, and the distance of movement of each slider 4 is related to the pitch of the thread in each threaded area.

[0033] Specifically, if the threads in each threaded region on the screw 5 have the same direction of rotation, then when the screw 5 rotates, each slider 4 will either rise or fall. The slider 4 located in the threaded region with a larger pitch will move a greater distance, while the slider 4 located in the threaded region with a smaller pitch will move a smaller distance. This will change the distance between each slider 4, and further change the spacing between each placement plate 3.

[0034] In addition, if the threads in different threaded areas on the screw 5 have different directions of rotation, when the screw 5 is rotated, the sliders 4 located in threaded areas with different directions of rotation will move in opposite directions, thus adjusting the distance between different placement plates 3.

[0035] In an exemplary embodiment, in the direction away from the top plate, the threaded regions on the screw 5 are sequentially the first threaded region to the nth threaded region, and the thread pitch of each threaded region increases or decreases sequentially, where n is the number of placement plates 3.

[0036] like Figure 4 As shown in this embodiment, there are four placement plates 3, and correspondingly four threaded areas, from top to bottom: the first threaded area to the fourth threaded area. The pitch is largest in the first threaded area and smallest in the fourth threaded area. The threads in each threaded area have the same direction of rotation. In the same driving space, when the screw 5 is rotated to drive the slider 4 to rise, the uppermost slider 4 rises the greatest distance, and the lowermost slider 4 rises the least distance. This increases the distance between each placement plate 3. Similarly, when the screw 5 is rotated to drive the slider 4 to fall, the distance between each placement plate 3 decreases. This makes it easy to adjust the distance between each placement plate 3.

[0037] It should be noted that the two drive mechanisms 6 are arranged symmetrically. Taking a placement plate 3 as an example, the two drive mechanisms 6 drive the two screws 5 to rotate synchronously, thereby driving the two sliders 4 on both sides of the placement plate 3 to rise and fall synchronously, making the movement of the placement plate 3 more stable.

[0038] refer to Figure 4In an exemplary embodiment, the drive mechanism 6 may include a motor 61, a driving cone wheel 62, and a driven cone wheel 63. The motor 61 is disposed on the outside of the housing 1 and its output shaft extends into the drive space. The driving cone wheel 62 is located in the drive space and is sleeved on the outer periphery of the output shaft of the motor 61. The driven cone wheel 63 is sleeved on the outer periphery of the screw 5 and meshes with the driving cone wheel 62.

[0039] The motor 61 can be connected to an external power source or to a battery, which is fixed to the housing 1. The rotation of the motor 61 drives the active cone wheel 62 to rotate. The active cone wheel 62 meshes with the driven cone wheel 63. When the active cone wheel 62 rotates, it drives the driven cone wheel 63 to rotate. The driven cone wheel 63 is sleeved on the screw 5. When the driven cone wheel 63 rotates, it drives the screw 5 to rotate. In this way, the motor 61 can drive the screw 5 to rotate. Specifically, the rotation direction of the screw 5 can be changed by changing the output shaft of the motor 61, thereby further changing the moving direction of each placement plate 3.

[0040] It should be noted that a second handle 15 is fixed on the outside of the box 1 to facilitate the user to push the box 1.

[0041] refer to Figure 2 and Figure 5 In an exemplary embodiment, the back panel is provided with an air inlet 12 and an air outlet 13 spaced apart in a first direction; the heating assembly 7 may include a cylinder 71, a fan 72 and a heating wire 73, the cylinder 71 is disposed inside the housing 1 and one end is attached to the air inlet 12; the fan 72 is disposed inside the cylinder 71; the heating wire 73 is disposed on the side of the fan 72 away from the back panel and located inside the cylinder 71.

[0042] Specifically, the heating wire 73 heats the air on the side away from the back panel of the fan 72. The fan 72 blows the hot air to the food area on each placement plate 3 to heat and keep the food warm, making the heating more uniform. The air inlet 12 facilitates the fan 72 to draw in the air outside the box 1, and the air outlet 13 facilitates the discharge of hot air from inside the box 1.

[0043] It should be noted that both the fan 72 and the heating wire 73 can be electrically connected to the aforementioned battery.

[0044] refer to Figure 5 In an exemplary embodiment, the heating assembly 7 may further include a perforated plate 74 disposed on the inner periphery of the end of the cylinder 71 away from the back plate.

[0045] Specifically, the perforated plate 74 can both divert the airflow blown out by the blower 72 and, to a certain extent, intercept impurities from entering the cylinder 71 and coming into contact with the heating wire 73, thereby improving the service life of the heating wire 73.

[0046] refer to Figure 2In an exemplary embodiment, the walking mechanism may include four casters 8, which are located at the four corners of the base plate. The four casters 8 facilitate the operator's movement and steering of the food cart, making it more convenient to use.

[0047] refer to Figure 3 In an exemplary embodiment, the placement plate 3 may include a fixed plate 31 and a sliding plate 32. The fixed plate 31 is fixed to the corresponding slider 4. The side of the fixed plate 31 facing away from the bottom plate has a through groove extending in a second direction. The sliding plate 32 is slidably fitted in the through groove and has the freedom to slide in the second direction.

[0048] Specifically, such as Figure 3 As shown, the fixed plate 31 corresponds to the slider 4, which is the slider 4 on both sides of the plate 3. The fixed plate 31 is fixed to the corresponding slider 4. The sliding plate 32 has the freedom to slide along the second direction. In this way, when using, the box door 11 can be opened and the sliding plate 32 can be slid out, which makes it easy to store and retrieve food. After storage and retrieval, the sliding plate 32 can be slid into the through slot and the box door 11 can be closed, making it more convenient to use.

[0049] refer to Figure 3 In an exemplary embodiment, the placement plate 3 may further include a first handle 33, which is fixed to the side of the sliding plate 32 away from the back plate. The sliding plate 32 can be moved by pulling or pushing the first handle 33, making it more convenient to use.

[0050] In an exemplary embodiment, in the second direction, there are gaps between the fixing plate 31 and the back plate and the door 11.

[0051] Specifically, the hot air blown out by the heating component 7 can reach the food area on each placement plate 3 through the gaps between the fixing plate 31, the back plate, and the door 11.

[0052] In the embodiments of this application, such as Figure 2 As shown, the air inlet 12 is located at the top of the back panel, and the air outlet 13 is located at the bottom of the back panel. In this way, the hot air blown out by the heating component 7 will pass through the food area on each placement plate 3 and finally be discharged from the air outlet 13.

[0053] refer to Figure 1 In an exemplary embodiment, the insulated food cart may further include a fence 14 disposed on the side of the top plate away from the bottom plate.

[0054] Specifically, after installing the railing 14 above the top panel, some food that does not require heating, such as various cold dishes, can be placed on the top panel. The railing 14 can effectively prevent the food from falling off the top panel, making the food cart more applicable and more convenient to use.

[0055] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A thermal car, characterized in that, include: The box (1) has a top plate and a bottom plate arranged opposite to each other in a first direction, and a door (11) and a back plate arranged opposite to each other in a second direction. The first direction is the same as the height direction of the box (1), and the second direction is the same as the width direction of the box (1). Two upright plates (2) are spaced apart in the box (1) and perpendicular to the back plate in the third direction. The two upright plates (2) divide the interior of the box (1) into a driving space, a placement space and a driving space arranged in the third direction. The upright plates (2) are provided with a sliding groove (21) extending along the first direction. Multiple placement plates (3) are spaced apart between two vertical plates (2) in the first direction and have the freedom to slide along the first direction. Two sliders (4) are fixed on the side of each placement plate (3) to slide with the two sliding grooves (21). Each slider (4) extends into the driving space on the side of the corresponding vertical plate (2) away from the other vertical plate (2). Two screws (5) are rotatably connected to two driving spaces and their axial direction is the same as the first direction. The screws (5) have a degree of freedom to rotate around the first direction. In the same driving space, the screws (5) pass through each slider (4) and are threadedly connected to each slider (4). The screws (5) have multiple threaded areas that are spaced apart along their own axial direction. Each slider (4) is located in one of the threaded areas and the thread pitch in each threaded area is different. Two sets of drive mechanisms (6) are connected to two screws (5) respectively, and the drive mechanism (6) provides rotational driving force to the corresponding screw (5); Heating component (7) is disposed on the inner side of the back plate; The walking mechanism is located on the side of the base plate opposite to the top plate.

2. The insulated trolley as claimed in claim 1, wherein, In the direction away from the top plate, each of the threaded regions on the screw (5) is sequentially the first threaded region to the nth threaded region, and the thread pitch of each threaded region increases or decreases sequentially, where n is the number of placement plates (3).

3. The insulated trolley as claimed in claim 1, wherein, The drive mechanism (6) includes: The motor (61) is located on the outside of the housing (1) and its output shaft extends into the drive space; The active conical wheel (62) is located within the drive space and is sleeved on the outer periphery of the output shaft of the motor (61); The driven cone wheel (63) is sleeved on the outer periphery of the screw (5) and meshes with the driving cone wheel (62).

4. The insulated serving cart of claim 1, wherein, The back panel is provided with an air inlet (12) and an air outlet (13) spaced apart in a first direction; the heating assembly (7) includes: The cylindrical body (71) is disposed inside the box (1) and one end is attached to the air inlet (12). A fan (72) is installed inside the cylinder (71); Heating wire (73) is disposed on the side of the fan (72) away from the back plate and located inside the cylinder (71).

5. The insulated food cart as described in claim 4, characterized in that, The heating assembly (7) also includes: A perforated plate (74) is disposed on the inner periphery of the end of the cylinder (71) away from the back plate.

6. The insulated food cart as described in claim 1, characterized in that, The walking mechanism includes: Four casters (8) are located at the four corners of the base plate.

7. The insulated food cart as described in claim 1, characterized in that, The placement plate (3) includes: A fixing plate (31) is fixed to the corresponding slider (4), and the fixing plate (31) has a through groove extending in the second direction on the side away from the bottom plate; The sliding plate (32) is slidably fitted into the through groove and has the degree of freedom to slide along the second direction.

8. The insulated food cart as described in claim 7, characterized in that, The placement plate (3) also includes: The first handle (33) is fixed to the side of the sliding plate (32) away from the back plate.

9. The insulated food cart as described in claim 7, characterized in that, In the second direction, there are gaps between the fixing plate (31) and the back plate and the box door (11).

10. The insulated food cart as described in claim 1, characterized in that, The insulated food cart also includes: A fence (14) is installed on the side of the top plate away from the bottom plate.

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