A mobile dining car downhole

Abstract

The application discloses a mobile dining car in a mine, and the inside of a dining car body is provided with a dining area on one side, the inside of the dining car body is provided with a heat preservation box on the side far from the dining area, the inside of the heat preservation box is provided with a stop component, the opposite side of the heat preservation box is provided with a storage cabinet, the heat preservation box and the storage cabinet are provided with a mobile dining box between them, the bottom of the mobile dining box is provided with a second wheel, the inside of the mobile dining box is provided with a first storage rack, the first storage rack and the mobile dining box are provided with an anti-rollover component between them, the side of the first storage rack far from the heat preservation box is provided with a pushing component, the bottom of the mobile dining box is slidably connected with a sliding component, the side of the sliding component far from the dining car body is provided with a mobile plate car for transporting the mobile dining box, and the two sides of the first sliding rail are provided with clamping components for fixing the mobile dining box. Through the arrangement of the mobile dining box, when food is insufficient, the dining car does not need to return to the surface to fill food, the efficiency of food transportation is greatly improved, and the smooth operation of the mine is ensured.

Description

Technical Field

[0001] This invention relates to the field of mobile catering vehicle technology, and in particular to an underground mobile catering vehicle. Background Technology

[0002] Most coal mines in my country are underground, and miners typically work underground for more than 8 hours a day. Over 90% of miners' meals are taken underground. Currently, most coal mining companies distribute meals directly to miners before they enter the mine, and most miners take these meals with them. However, working underground for 8 hours or more on an empty stomach without sufficient calorie replenishment, it is difficult to sustain such high-intensity work simply by eating bread. In addition, the space for rest underground is limited, and miners lack comfortable rest areas. Prolonged fatigue work poses a significant safety hazard. To address these issues, companies whose main business is coal mining have designed mobile underground dining vehicles that can store food and provide ample space for eating and resting.

[0003] A search revealed a Chinese utility model patent with application number CN201921833234.9, which discloses a mobile dining vehicle for underground mining. The vehicle includes a dust cover, support frame, dining table, baffle, insulated box, vehicle body, wheels, stool, and backrest. This utility model features a dining table and an insulated box, storing lunchboxes in a storage cavity inside the box, which is connected by a connecting plate. The insulated compartment is divided into multiple compartments by partitions, and the insulated compartment uses heat-insulating coating for good heat retention. After the lid is closed, the insulated plate keeps the lunchboxes warm, solving the problem of food temperature control. Furthermore, by providing a temporary rest area, it facilitates the dining needs of mine workers.

[0004] However, the aforementioned mobile catering vehicle is an open mobile space. Due to the poor underground environment, the open design makes it difficult to isolate the dust and dirt underground from the miners' dining and rest areas, which makes it impossible to guarantee the cleanliness of the rest and dining areas and affects the quality of the miners' meals and rest.

[0005] Further searching revealed a utility model patent with application number CN201520101988.0, which discloses a special catering vehicle for explosion-proof intelligent heat preservation and delivery in coal mines. The vehicle includes a catering vehicle body with a groove inside. A set of vehicle-mounted containers is installed in the groove, dividing the containers into several unit boxes for placing food for miners.

[0006] However, this type of dining car can only carry food for miners once. If there are too many miners and the food is insufficient, the entire dining car needs to return to the mine to load a second batch of food, which seriously affects the efficiency of food transportation. Furthermore, miners who have not yet eaten have to wait, which also affects the efficiency of underground operations. Summary of the Invention

[0007] (a) Technical problems to be solved The purpose of this invention is to provide an underground mobile catering vehicle to solve the problems of existing catering vehicles where the cleanliness of the rest and dining areas cannot be guaranteed, and where the food supply has to be returned to the surface for re-transport when there is not enough food, which affects the efficiency of food transportation. (II) Summary of the Invention To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mobile dining cart for underground use, comprising a cart body, a first wheel at the bottom of the cart body, a dining area on one side inside the cart body, an insulated box on the side of the cart body away from the dining area, a stop assembly inside the insulated box, a storage cabinet on the opposite side of the insulated box, a mobile dining box between the insulated box and the storage cabinet, a second wheel at the bottom of the mobile dining box, a first shelf inside the mobile dining box, and a safety barrier between the first shelf and the mobile dining box. The first shelf has a tilting assembly, a pushing assembly on the side away from the insulated box, a sliding assembly slidably connected to the bottom of the mobile food container, a winch on one side of the sliding assembly, and a steel wire rope connecting the winch to the mobile food container. A square through hole for the mobile food container to pass through is provided on the side wall of the food cart body near the insulated box. A mobile cart for transporting the mobile food container is provided on the side of the sliding assembly away from the food cart body. A first slide rail is fixedly provided on the top of the mobile cart, and clamping assemblies for fixing the mobile food container are provided on both sides of the first slide rail.

[0009] During operation, a mining tractor can be used to transport food carts filled with food underground. A mobile cart can be connected to the food cart and brought underground as well. Miners eat in groups in the dining area. When the first batch of food delivered underground is almost finished, there is no need to return the entire mobile cart to the surface for resupply. Instead, the mobile food cart is moved to the clamping assembly on the mobile cart using a sliding assembly. The L-shaped fixing plate and positioning nut of the clamping assembly are used to secure the mobile food cart. Finally, the traction device moves the mobile cart to the surface for the next batch of food to be filled. After loading, the cart is returned to the vicinity of the food cart, and the mobile cart is positioned with one end of the rotating plate touching the ground. Using a wire rope and winch, the mobile food cart is moved to the position opposite the insulated box. The food is then placed into the insulated box using a pushing assembly and a stop assembly to provide food for subsequent workers.

[0010] Preferably, the insulated box has a sliding door on the side near the mobile food container. The interior of the insulated box has a second shelf, the highest point of which is lower than the lowest point of the first shelf. The bottom of the insulated box has a first circular slot. The stop assembly includes a column, one end of which is slidably connected to the first circular slot. A first spring is provided between the column and the bottom of the first circular slot. The other end of the column passes through the top wall of the insulated box and has a button. The middle of the column passes through each layer of the second shelf and is slidably connected to it. A baffle is fixedly provided above each second shelf on one side of the column, and square slots are evenly spaced at the bottom of each baffle.

[0011] Preferably, the mobile food container has a sliding door on the side near the insulated box, vertical plates are slidably connected to both sides of the first shelf, a first side plate is fixedly installed on one side of the vertical plate, and a baffle strip that can pass through the square groove is also provided on the first shelf.

[0012] Preferably, the anti-tilt assembly includes a rotating part fixedly connected to the top of the two vertical plates. A circular through hole is provided at the top center of the rotating part. A rotating shaft is rotatably connected inside the circular through hole. One end of the rotating shaft near the storage cabinet is fixedly connected to the inner wall of the mobile food box, and the other end is fixedly connected to a fixing block. A sliding part is fixedly connected to the bottom of the two side plates. The bottom of the sliding part is arc-shaped. Sliding blocks are symmetrically arranged on both sides of the bottom of the sliding part. An arc-shaped base is provided at the inner bottom of the mobile food box. An arc groove adapted to the bottom of the sliding part is provided at the top of the arc-shaped base. A second circular slot is symmetrically arranged inside the arc groove. A buffer is provided inside the second circular slot.

[0013] Preferably, the buffer includes a buffer block, and a second spring is fixedly connected to the bottom of the buffer block. The bottom of the second spring is fixedly connected to the inner bottom of the second circular slot.

[0014] Preferably, the pushing component includes a cylinder, one end of which is fixed to a first side plate, and the other end of which is fixedly connected to a second side plate. The second side plate is fixedly connected to the first shelf, thereby pushing the first shelf to move toward the second shelf.

[0015] Preferably, the sliding assembly includes a second slide rail, a rotating plate, and a third slide rail. The second slide rail is fixedly installed at the inner bottom of the mobile food cart and is slidably connected to the second wheel. The rotating plate is rotatably installed on the side wall of the food cart body near the square through hole. The third slide rail is fixedly installed on the top of the rotating plate. The distance between the two sides of the first, second, and third slide rails is equal.

[0016] Preferably, the mobile cart is provided with a third wheel, identical to the first wheel, on each side, and straight grooves are provided on each side of the first slide rail.

[0017] Preferably, the clamping assembly includes two L-shaped limiting plates, which are respectively disposed opposite to each other at the end of the first slide rail away from the food cart body. An L-shaped fixing plate is movably disposed in the straight groove. A screw is disposed between the L-shaped limiting plate and the L-shaped fixing plate. One end of the screw is fixedly connected to the L-shaped limiting plate, and the other end passes through the L-shaped fixing plate and is provided with a positioning nut.

[0018] Preferably, the dining area includes a dining table, which is fixedly connected to the bottom of the food cart body. Dining chairs are provided on both sides of the dining table. A door is provided on one side wall of the food cart body. A handwashing station is provided on the side of the storage cabinet near the dining area. A water tank is provided on the top inside the food cart body. An explosion-proof light is provided in the center of the top inside the food cart body.

[0019] (III) Beneficial Effects The advantages of the underground mobile catering vehicle provided by this invention are as follows: 1. By setting up a dining car compartment, and installing dining areas, insulated boxes, storage cabinets, handwashing stations, and explosion-proof lights, the dining and resting environment for miners is guaranteed, the practicality of the underground dining car is improved, and a solid foundation is laid for the smooth progress of mining operations.

[0020] 2. By setting up mobile meal boxes, the meal cart can be accessed and exited through a square through-hole using a winch and sliding assembly. When food is insufficient and a new batch of food needs to be transported, the mobile meal box is simply moved onto a mobile cart, secured with clamping components, and pulled to the surface using an external traction device. After replenishing the food, it is sent to the vicinity of the meal cart underground and then returned to the inside of the meal cart, completing one food replenishment. There is no need for the entire meal cart to be returned to the surface for replenishment, nor is it necessary to stop the miners from eating. This greatly improves the efficiency of food transportation, provides miners with sufficient food supply, and ensures the smooth operation of mining operations.

[0021] 3. By setting a pushing component inside the mobile meal box and a stopping component inside the insulated box, a cylinder is used to push the first shelf above the second shelf. When the staff presses the upright, the baffle moves down, which limits the meal box. The output end of the control cylinder retracts, driving the first shelf back into the mobile meal box. All the meal boxes remain in the insulated box, eliminating the need for staff to spend a lot of time moving the meal boxes into the insulated box, further improving the efficiency of meal transportation.

[0022] 4. By setting up an anti-tilt component, using the rotating part and sliding part fixed above and below the first shelf respectively, when the mobile food box tilts, the internal first shelf can be kept horizontal. In addition, the sliding block and buffer of the sliding part work together to reduce the speed of tilting of the rotating part, reducing the possibility of food spilling outside the food box due to severe tilting or excessive left and right shaking. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal planar structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the insulated box in this invention; Figure 5 This is a partial cross-sectional schematic diagram of the insulated box in this invention; Figure 6 This is a three-dimensional structural diagram of the mobile food box in this invention; Figure 7 This is a schematic diagram of the internal structure of the mobile food box in this invention; Figure 8 This is a three-dimensional structural diagram of the push component in this invention; Figure 9 This is a schematic diagram showing the positional relationship of the circular through holes in this invention; Figure 10 This is a partial cross-sectional schematic diagram of the mobile food container in this invention; Figure 11 This is a three-dimensional structural diagram of the mobile cart in this invention.

[0025] The reference numerals in the diagram are as follows: 1. Food cart body; 2. First wheel; 3. Dining area; 31. Table; 32. Dining chair; 33. Door; 4. Insulated box; 41. Stop assembly; 411. Column; 412. First spring; 413. Button; 414. Baffle; 415. Square groove; 42. Insulated box door; 43. Second shelf; 44. First circular slot; 5. Storage cabinet; 6. Mobile food cart; 61. First shelf; 611. Stop bar; 62. Anti-tilt assembly; 621. Rotating part; 622. Circular through hole; 623. Rotating shaft; 624. Fixing block; 625. Sliding part; 626. Sliding block; 627. Arc-shaped base; 628. Arc groove; 629. Two circular slots; 6210, buffer component; 6211, buffer block; 6212, second spring; 63, pushing assembly; 631, cylinder; 632, second side plate; 64, compartment door; 65, second wheel; 66, vertical plate; 67, first side plate; 7, sliding assembly; 71, second slide rail; 72, rotating plate; 73, third slide rail; 8, winch; 81, wire rope; 9, mobile trolley; 91, first slide rail; 92, third wheel; 93, straight slot; 10, clamping assembly; 1001, L-shaped limit plate; 1002, L-shaped fixing plate; 1003, screw; 1004, positioning nut; 11, washbasin; 12, water tank; 13, explosion-proof light; 101, square through hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Please see Figure 1-3 An embodiment of the present invention provides: an underground mobile dining car, including a dining car body 1, with a first wheel 2 at the bottom of the dining car body 1, the first wheel 2 being matched with the mine track, and under the drive of a traction device, realizing the operation of going down into and out of the mine. A dining area 3 is provided on one side inside the dining car body 1, wherein the dining area 3 includes a table 31, the table 31 being fixedly connected to the inner bottom of the dining car body 1, and dining chairs 32 being provided on both sides of the table 31. A door 33 is provided on the side wall of the dining car body 1 on one side of the dining area 3 to provide an entrance and exit for the miners. like Figure 1-5 As shown, a warming box 4 is installed inside the food cart body 1 on the side away from the dining area 3. A door 42 is slidably installed on the side of the warming box 4 near the mobile food container 6 for opening and closing. A second shelf 43 is installed inside the warming box 4. The highest point of the second shelf 43 is lower than the lowest point of the first shelf 61, ensuring unobstructed placement of food from the mobile food container 6 into the warming box 4. A first circular slot 44 is provided at the bottom of the warming box 4. A stop assembly 41 is installed inside the warming box 4. The stop assembly 41 includes a column 411, one end of which is slidably connected to the first circular slot 44. A space is provided between the column 411 and the inner bottom of the first circular slot 44. A first spring 412 is provided. The other end of the column 411 passes through the top wall of the insulated box 4 and is equipped with a button 413. The middle part of the column 411 passes through the second shelf 43 of each layer and is slidably connected to the second shelf 43. A baffle 414 is fixedly provided above each second shelf 43 on one side of the column 411. A square groove 415 is opened at equal intervals at the bottom of each baffle 414. When the meal box in the mobile meal box 6 enters the insulated box, the staff only needs to press the button 413. At this time, the column 411 moves downward along the first circular groove 44, overcoming the elastic force of the first spring 412. The column 411 drives the baffle 414 to move downward. At this time, the meal box is left in the insulated box 4 so that the meal can be kept warm and eaten later.

[0029] like Figure 6-10As shown, a storage cabinet 5 is provided on the opposite side of the insulated box 4, and a mobile food container 6 is provided between the insulated box 4 and the storage cabinet 5. A door 64 is slidably provided on the side of the mobile food container 6 closest to the insulated box 4. The bottom of the mobile food container 6 is provided with second wheels 65 for moving between the mobile cart 9 and the food cart body 1. The interior of the mobile food container 6 is provided with a first shelf 61. Vertical plates 66 are slidably connected to both sides of the first shelf 61, and the first shelf 61 can move horizontally between the vertical plates 66. A first side plate 67 is fixedly provided on one side of the two vertical plates 66. The first shelf 61 is also provided with a baffle 611 that can pass through a square slot 415. A pushing component 63 is provided on the side of the first shelf 61 away from the insulated box 4, wherein the pushing component 63 includes a cylinder 631, one end of which is fixed to the first side plate 67. The other end of the cylinder 631 is fixedly connected to a second side plate 632, which is fixedly connected to the first shelf 61. The cylinder 631 pushes the first shelf 61 to move towards the second shelf 43. When the mobile food box 5 moves to the designated position, the compartment door 64 and the insulated box door 42 are opened, the cylinder 631 is activated, and the second side plate 632 is pushed towards the insulated box 4. The second side plate 632 pushes the first shelf 61 to move and gradually overlap with the second shelf 43. At this time, each layer of the first shelf 61 is higher than the second shelf 43. When the first shelf 61 is pushed to the designated position, the button 413 of the stop assembly 41 is pressed down, and the baffle 414 blocks the top of the first shelf 61. At this time, the cylinder 631 is retracted, the food box is left on the second shelf 43, the first shelf 61 returns to the mobile food box 6, and the compartment door 64 and the insulated box door 42 are closed.

[0030] Furthermore, to reduce the risk of food spillage due to excessive tilting of the lunchbox during transportation, an anti-tilting component 62 is provided between the first shelf 61 and the mobile lunchbox 6. The anti-tilting component 62 includes a rotating part 621 fixedly connected to the top of the two vertical plates 66. A circular through-hole 622 is formed at the center of the top of the rotating part 621. A rotating shaft 623 is rotatably connected inside the circular through-hole 622. One end of the rotating shaft 623 near the storage cabinet 5 is fixedly connected to the inner wall of the mobile lunchbox 6, and the other end... A fixed block 624 is fixedly connected, and the rotating part 621 can rotate along the rotating shaft 623. When the mobile food box 6 tilts, the rotating part 621 drives the first shelf 61 to rotate, so that the food box always remains in a nearly horizontal state, reducing the possibility of food spilling out of the food box. A sliding part 625 is fixedly connected to the bottom of the vertical plates 66 on both sides. The bottom of the sliding part 625 is set in an arc shape, and sliding blocks 626 are symmetrically arranged on both sides of the bottom of the sliding part 625. The inner bottom of the mobile food box 6 is provided with an arc-shaped bottom. The base 627 has an arc-shaped groove 628 at its top that matches the bottom of the sliding part 625. The sliding block 626 moves along the arc-shaped groove 628. A second circular slot 629 is symmetrically arranged inside the arc-shaped groove 628. A buffer member 6210 is arranged inside the second circular slot 629. The buffer member 6210 includes a buffer block 6211. A second spring 6212 is fixedly connected to the bottom of the buffer block 6211. The bottom of the second spring 6212 is fixedly disposed on the second circular slot 625. In order to prevent the rotating part 621 and the sliding part 625 from moving too much and causing food in the lunch box to spill easily, the inner bottom of the slot 629 is equipped with a sliding block 626 that contacts a buffer block 6210 to reduce the change of tilt angle, thereby reducing the magnitude and rate of angle change of the lunch box. In addition, multiple sets of buffers 6210 can be designed to better control the tilt speed and magnitude of the first shelf 61, greatly reducing the occurrence of food spillage caused by shaking in the lunch box.

[0031] like Figure 2As shown, in order to smoothly complete the task of moving the mobile meal box 6 from the mobile cart 9 to the inside of the meal cart body 1, a square through hole 101 is provided on the side wall of the meal cart body 1 near the insulated box 4 for the mobile meal box 6 to pass through. A sliding assembly 7 is slidably connected to the bottom of the mobile meal box 6, and a winch 8 is provided on one side of the sliding assembly 7. The winch 8 is connected to the mobile meal box 6 by a steel wire rope 81. The sliding assembly 7 includes a second slide rail 71, a rotating plate 72 and a third slide rail 73. The second slide rail 71 is fixedly installed at the inner bottom of the mobile meal cart 1 and slidably connected to the second wheel 65. The rotating plate 72 is rotatably installed on the side wall of the meal cart body 1 near the square through hole 101. During the process of lowering into the well, the rotating plate 72 flips to the position of the side wall of the mobile meal cart 1, forming a line with the side wall. A complete carriage has a third slide rail 73 fixedly installed on the top of the rotating plate 72. The distance between the two slide rails of the first slide rail 91, the second slide rail 71 and the third slide rail 73 is equal. When the mobile carriage 9 completes the well-entry operation and arrives near the dining car body 1 through the traction device, the clamping component 10 is released. The winch 8 drives the wire rope 81 to pull the mobile meal box 6. The second wheel 65 first passes through the first slide rail 91, then through the third slide rail 73, and finally through the second slide rail 71 to reach the vicinity of the insulated box 4. After the meal is delivered into the insulated box 4 by the pushing component 63, it is separated from the dining car body 1. The sliding component 7 is provided with a mobile carriage 9 for transporting the mobile meal box 6 on the side away from the dining car body 1. The two sides of the mobile carriage 9 are respectively provided with a third wheel 92 that is the same as the first wheel 2.

[0032] Furthermore, to ensure that the mobile food container 6 does not detach from the mobile cart 9 during movement, a first slide rail 91 is fixedly installed on the top of the mobile cart 9. Straight slots 93 are respectively opened on both sides of the first slide rail 91. Clamping assemblies 10 for fixing the mobile food container 6 are provided on both sides of the first slide rail 91. The clamping assemblies 10 include two L-shaped limiting plates 1001, which are respectively positioned opposite each other at the end of the first slide rail 91 away from the food container body 1. L-shaped fixing... Plate 1002, a screw 1003 is provided between the L-shaped limiting plate 1001 and the L-shaped fixing plate 1002. One end of the screw 1003 is fixedly connected to the L-shaped limiting plate 1001, and the other end passes through the L-shaped fixing plate 1002 and is provided with a positioning nut 1004. After one side of the mobile food box 6 contacts the L-shaped limiting plate, the L-shaped fixing plate 1002 is placed into the straight groove 93 and then pushed through the screw 1003 to the other side of the mobile food box 6. Finally, it is fixed by the positioning nut 1004, ensuring that the mobile food box 6 is completely restricted in the clamping assembly 10.

[0033] To further ensure the daily needs of miners, improve the hygiene of meals, and enhance the practicality of the mobile catering cart, a handwashing station 11 is installed on the side of the storage cabinet 5 near the dining area 3 to ensure that miners can wash their hands before meals and reduce contact with bacteria. A water tank 12 is installed on the inner top of the catering cart body 1 to provide water for miners. An explosion-proof light 13 is installed in the center of the inner top of the catering cart body 1, which is more suitable for the complex underground environment than ordinary lighting and provides lighting for miners.

[0034] During operation, a mining tractor can be used to transport the food cart 1, filled with food, underground. A mobile cart 9 can be connected to the food cart 1 and brought underground as well. Miners eat in groups in the dining area 3. When the first batch of food delivered underground is almost finished, there's no need to return the entire mobile food cart 1 to the surface for resupply. Instead, the mobile food container 6 is moved via the sliding assembly 7 to the clamping assembly 10 on the mobile cart 9. The L-shaped fixing plate 1002 and positioning nut 1004 of the clamping assembly 10 are used for movement. After the meal box 6 is fixed in place, the mobile cart 9 is moved to the surface via a traction device to fill the next batch of food. After loading, it returns to the vicinity of the meal cart body 1. After one end of the rotating plate 72 is placed on the ground, the mobile cart 9 is positioned. Using the wire rope 81 and the winch 8, the mobile meal box 6 is moved to the position opposite the insulated box 4. The food is placed into the insulated box by the pushing component 63 and the stop component 41 to provide food for subsequent workers, greatly improving the efficiency of meal transportation and providing sufficient food supply for miners, thus ensuring the smooth operation of the mine.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile catering vehicle for underground use, comprising a catering vehicle body (1), wherein the bottom of the catering vehicle body (1) is provided with first wheels (2), and a dining area (3) is provided on one side inside the catering vehicle body (1), characterized in that: A warming box (4) is provided on the side of the food cart body (1) away from the dining area (3). A stop assembly (41) is provided inside the warming box (4). A storage cabinet (5) is provided on the opposite side of the warming box (4). A mobile food box (6) is provided between the warming box (4) and the storage cabinet (5). A second wheel (65) is provided at the bottom of the mobile food box (6). A first shelf (61) is provided inside the mobile food box (6). An anti-tilt assembly (62) is provided between the first shelf (61) and the mobile food box (6). A push assembly (63) is provided on the side of the first shelf (61) away from the warming box (4). (6) has a sliding assembly (7) slidably connected to its bottom. A winch (8) is provided on one side of the sliding assembly (7). The winch (8) is connected to the mobile food box (6) by a steel wire rope (81). A square through hole (101) is provided on the side wall of the food cart body (1) near the insulated box (4) for the mobile food box (6) to pass through. A mobile cart (9) for transporting the mobile food box (6) is provided on the side of the sliding assembly (7) away from the food cart body (1). A first slide rail (91) is fixedly provided on the top of the mobile cart (9). Clamping assemblies (10) for fixing the mobile food box (6) are provided on both sides of the first slide rail (91). The insulated box (4) has a sliding door (42) on the side near the mobile food box (6). A second shelf (43) is provided inside the insulated box (4). The highest point of the second shelf (43) is lower than the lowest point of the first shelf (61). A first circular slot (44) is provided at the bottom of the insulated box (4). The stop assembly (41) includes a column (411). One end of the column (411) is slidably connected to the first circular slot (44). 1) A first spring (412) is provided between the inner bottom of the first circular slot (44). A button (413) is provided at the other end of the column (411) through the top wall of the insulated box (4). The middle part of the column (411) passes through the second shelf (43) of each layer and is slidably connected to the second shelf (43). A baffle (414) is fixedly provided above each second shelf (43) on one side of the column (411). A square slot (415) is opened at equal intervals at the bottom of each baffle (414). The mobile food box (6) has a sliding door (64) on the side near the insulated box (4). The first shelf (61) has vertical plates (66) slidably connected to both sides. A first side plate (67) is fixedly installed on one side of the two vertical plates (66). The first shelf (61) is also provided with a baffle (611) that can pass through the square groove (415). The pushing component (63) includes a cylinder (631), one end of which is fixed on a first side plate (67), and the other end of which is fixedly connected to a second side plate (632). The second side plate (632) is fixedly connected to the first shelf (61) and pushes the first shelf (61) to move towards the second shelf (43).

2. The underground mobile dining vehicle according to claim 1, characterized in that: The anti-tilt assembly (62) includes a rotating part (621) fixedly connected to the top of the two vertical plates (66). A circular through hole (622) is provided at the center of the top of the rotating part (621). A rotating shaft (623) is rotatably connected inside the circular through hole (622). One end of the rotating shaft (623) near the storage cabinet (5) is fixedly connected to the inner wall of the mobile food box (6), and the other end is fixedly connected to a fixing block (624). A sliding part (625) is fixedly connected to the bottom of the two vertical plates (66). The bottom of the sliding part (625) is arc-shaped, and sliding blocks (626) are symmetrically arranged on both sides of the bottom of the sliding part (625). The inner bottom of the mobile food box (6) is provided with an arc-shaped base (627). The top of the arc-shaped base (627) is provided with an arc groove (628) that matches the bottom of the sliding part (625). The arc groove (628) is symmetrically provided with a second circular slot (629) inside. The second circular slot (629) is provided with a buffer (6210) inside.

3. The underground mobile catering vehicle according to claim 2, characterized in that: The buffer (6210) includes a buffer block (6211), and a second spring (6212) is fixedly connected to the bottom of the buffer block (6211). The bottom of the second spring (6212) is fixedly connected to the inner bottom of the second circular slot (629).

4. The underground mobile dining vehicle according to claim 1, characterized in that: The sliding assembly (7) includes a second slide rail (71), a rotating plate (72) and a third slide rail (73). The second slide rail (71) is fixedly installed at the inner bottom of the food cart body (1) and is slidably connected to the second wheel (65). The rotating plate (72) is rotatably installed on the side wall of the food cart body (1) near the square through hole (101). The third slide rail (73) is fixedly installed on the top of the rotating plate (72). The distance between the two slide rails of the first slide rail (91), the second slide rail (71) and the third slide rail (73) is equal.

5. The underground mobile dining vehicle according to claim 4, characterized in that: The mobile cart (9) is provided with a third wheel (92) on each side, which is the same as the first wheel (2), and straight grooves (93) are provided on each side of the first slide rail (91).

6. The underground mobile dining vehicle according to claim 5, characterized in that: The clamping assembly (10) includes two L-shaped limiting plates (1001). The two L-shaped limiting plates (1001) are respectively disposed opposite to each other at one end of the first slide rail (91) away from the food cart body (1). An L-shaped fixing plate (1002) is movably disposed in the straight groove (93). A screw (1003) is disposed between the L-shaped limiting plate (1001) and the L-shaped fixing plate (1002). One end of the screw (1003) is fixedly connected to the L-shaped limiting plate (1001), and the other end passes through the L-shaped fixing plate (1002) and is provided with a positioning nut (1004).

7. The underground mobile catering vehicle according to claim 1, characterized in that: The dining area (3) includes a dining table (31), which is fixedly connected to the bottom of the food cart body (1). Dining chairs (32) are provided on both sides of the dining table (31). A door (33) is provided on the side wall of the food cart body (1) on one side of the dining area (3). A sink (11) is provided on the side of the storage cabinet (5) near the dining area (3). A water tank (12) is provided on the top of the food cart body (1). An explosion-proof light (13) is provided in the center of the top of the food cart body (1).

Images