A lightweight food cart with convenient water supply and drainage

Abstract

This utility model provides a lightweight food cart with convenient water supply and drainage, relating to the field of mobile food cart technology. The food cart body is equipped with a handwashing basin and a receiving cavity below it. The receiving cavity is equipped with a water supply mechanism and a drainage mechanism. The handwashing basin is equipped with a rotatable faucet and a drain outlet. The water supply mechanism includes a water storage tank and an electric water pump. The water storage tank is equipped with an inlet and an outlet, through which water is stored in the water storage tank. The electric water pump is connected to the outlet and the faucet respectively to form a water supply path, allowing water from the water storage tank to flow into the handwashing basin through the faucet. The drainage mechanism includes a drain pipe and a wastewater filter box. The drain pipe is connected to the drain outlet and the wastewater filter box respectively to form a drainage path, allowing water from the handwashing basin to be discharged into the wastewater filter box. The wastewater filter box is equipped with a sewage discharge interface, through which wastewater is discharged to the outside. A control switch is also provided on the outside of the food cart body. The control switch is electrically connected to the electric water pump, and the electric water pump is connected to a battery inside the food cart body.

Description

Technical Field

[0001] This utility model relates to the field of mobile food cart technology, and more specifically, to a lightweight food cart with convenient water supply and drainage. Background Technology

[0002] Mobile food trucks, as a flexible and convenient catering business model, have been widely used in street economy, night markets, and scenic spots in recent years. However, the water supply and drainage systems of traditional food trucks still rely on manual operation, which presents significant technical bottlenecks.

[0003] Traditional food trucks typically use water tanks or manual water supply, requiring frequent manual refilling. However, manually moving water tanks to refill them is inefficient and necessitates frequent business interruptions during peak hours. Directly dumping wastewater violates environmental regulations, and open drainage systems lead to mosquito breeding and odor spread. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight catering cart with convenient water supply and drainage, so as to solve the problems of traditional catering carts relying on manual operation for water supply and drainage, low efficiency, and wastewater discharge that does not meet environmental protection requirements.

[0005] To address the aforementioned problems, this utility model first provides a lightweight food cart with convenient water supply and drainage. The cart body is equipped with a handwashing basin and a receiving cavity located below the handwashing basin. The receiving cavity houses a water supply mechanism and a drainage mechanism. The handwashing basin is equipped with a rotatable faucet and a drain outlet. The water supply mechanism includes a water storage tank and an electric water pump. The water storage tank has an inlet and an outlet, through which water is stored in the tank. The electric water pump is connected to both the outlet and the faucet, forming a water supply path. The water in the water storage tank can flow into the handwashing basin through the faucet; the drainage mechanism includes a drain pipe and a wastewater filter box, the drain pipe is connected to the drain outlet and the wastewater filter box respectively to form a drainage path, which can drain the water in the handwashing basin into the wastewater filter box; the wastewater filter box is provided with a sewage discharge interface, through which wastewater is discharged to the outside; the outside of the food cart body is also provided with a control switch, the control switch is electrically connected to the electric water pump, and the electric water pump is connected to the battery inside the food cart body.

[0006] This design features independent water supply and drainage systems on the light-duty dining cart, enabling convenient water supply and drainage operations. During water supply, an electric water pump draws water from the storage tank into the sink via a faucet, creating a water supply path. During drainage, water from the sink flows into the wastewater filter tank through a drain, creating a drainage path. The operation of the electric water pump is controlled by a switch, which in turn controls the opening and closing of the water supply system. This system provides convenient water supply and drainage, solving the problems of traditional dining carts that rely on manual operation, have inconvenient water supply, and cause environmental pollution due to drainage issues.

[0007] Furthermore, the wastewater filtration box includes a filter box and a wastewater tank connected together. The filter box includes a filter screen layer, an activated carbon adsorption layer and an oil separation layer from top to bottom. The wastewater filtered by the filter box flows into the wastewater tank for storage.

[0008] Furthermore, the bottom of the filter box is equipped with a slag collection hopper and a drain valve. The slag collection hopper can collect filter residue, and the filter residue can be discharged through the drain valve.

[0009] Furthermore, the wastewater tank is equipped with a first liquid level sensor, which is connected to a first alarm on the control switch. When the first liquid level sensor detects that the water level has reached the set maximum level, the first alarm is triggered to provide a drainage alarm.

[0010] Furthermore, the water storage tank is equipped with a second liquid level sensor, which is connected to a second alarm on the control switch. When the second liquid level sensor detects that the water level has reached the set minimum level, it triggers the second alarm to provide a water supply alarm.

[0011] Furthermore, an anti-collision partition is provided between the water storage tank and the wastewater filter tank.

[0012] Furthermore, the water storage tank is made of food-grade PE material. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 A schematic diagram of the lightweight food cart structure provided for an embodiment of this utility model (I);

[0015] Figure 2 A schematic diagram (II) of the lightweight food cart structure provided for an embodiment of this utility model.

[0016] Figure 3 A partial enlarged view of the lightweight food cart provided in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 100 - Food cart body; 110 - Handwashing basin; 111 - Faucet; 112 - Drain; 120 - Receiving cavity; 130 - Control switch. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0020] To address the problems of traditional catering carts relying on manual operation for water supply and drainage, low efficiency, and wastewater discharge failing to meet environmental protection requirements.

[0021] This embodiment provides a lightweight catering cart with convenient water supply and drainage, such as... Figure 1-3 As shown, a handwashing basin and a receiving cavity below it are provided on the main body of the food cart; wherein, the handwashing basin is provided with a rotatable faucet and a drain outlet, the faucet can rotate 360° to facilitate adjustment of its usage angle and storage, and a water supply mechanism and a drainage mechanism are installed in the receiving cavity. The drainage mechanism and the water supply mechanism are not shown in the figure, but can be understood by those skilled in the art based on the following description.

[0022] Specifically, the water supply system includes a water storage tank and an electric water pump. The water storage tank has an inlet and an outlet, which allows water to be stored in the tank through the inlet. The electric water pump is connected to the outlet and the faucet, respectively, so that the water in the storage tank can flow into the sink through the faucet. This forms a water supply path from the water storage tank outlet to the electric water pump and then to the faucet.

[0023] The drainage system includes a drain pipe and a wastewater filter box. The drain pipe is connected to the drain outlet and the wastewater filter box at both ends, allowing water from the sink to be discharged into the wastewater filter box. This forms a drainage path from the sink drain outlet to the drain pipe and then to the wastewater filter box. Additionally, the wastewater filter box has a drain port for discharging wastewater to the outside.

[0024] A control switch is also installed on the outside of the food cart. The control switch is electrically connected to the electric water pump, thereby controlling the opening and closing of the electric water pump. That is, water can be added with one click by pressing the button on the control switch, making the water supply operation more convenient. The electric water pump is connected to the battery inside the food cart and is powered by the battery installed inside the food cart, such as a lithium battery.

[0025] The light-duty dining cart is equipped with independent water supply and drainage systems, enabling convenient water supply and drainage operations. During water supply, an electric water pump draws water from the storage tank into the handwashing basin via a faucet, forming a water supply path. During drainage, water from the handwashing basin flows into the wastewater filter tank through the drain, forming a drainage path. The operation of the electric water pump is controlled by a control switch, thereby controlling the opening and closing of the water supply system. This creates a convenient water supply and drainage system, solving the problems of traditional dining carts relying on manual operation, inconvenient water supply, and environmental pollution caused by drainage.

[0026] Preferably, the wastewater filter box in this embodiment includes a filter box and a wastewater tank connected together. The filter box is preferably made of polypropylene (PP) and includes, from top to bottom, a filter screen layer, an activated carbon adsorption layer, and an grease separation layer. After passing through the three layers of filtration in the filter box, the wastewater flows into the wastewater tank for storage. The filtration structure is understood by those skilled in the art, and specific configurations can be found in the following description. This achieves closed-loop drainage, prevents odor diffusion, eliminates mosquito breeding, improves hygiene levels, ensures compliant wastewater treatment, and avoids environmental problems.

[0027] In this embodiment, the first layer uses a stainless steel filter mesh, preferably 304 stainless steel woven mesh with a pore size of 2mm and a thickness of 1.5mm. It is installed at a 15° angle to form a funnel-shaped slag-guiding structure, allowing residue to slide along the mesh surface into the bottom slag collection hopper. This effectively intercepts solid impurities with a particle size ≥2mm (such as noodles, fruit peels, and broken glass) in the wastewater, achieving an interception efficiency of ≥95% and preventing clogging of the subsequent activated carbon layer.

[0028] The second activated carbon adsorption layer is preferably made of food-grade coconut shell activated carbon granules (4-8 mesh), with a filling thickness of 100mm. A drawer-type, detachable frame can be used, with a φ1mm vent at the bottom to allow water flow while blocking the carbon particles. Utilizing the porous structure of activated carbon, it adsorbs free oils, food odors (such as onion and garlic smells), and some organic matter in wastewater, with an adsorption capacity ≥100mg / g activated carbon, reducing wastewater odor by ≥80%.

[0029] The third layer, the grease separation layer, preferably uses an inclined plate separation device with an inclination angle of 30° and a plate spacing of 50mm, made of polypropylene (PP). For example, an oil collection trough is provided in the upper layer, connected to an grease collection bottle on the side of the filter box via a DN20 oil guide pipe. This utilizes oil (density ≈ 0.9g / cm³). 3 ) and water (density ≈ 1g / cm³) 3 Due to the density difference, when wastewater flows through the inclined plate, the oil particles float to the surface and accumulate along the plate wall to the oil collection tank, with a separation efficiency of ≥90% and an oil content of ≤50mg / L in the effluent.

[0030] Preferably, considering the convenience of discharging filter residue, a sludge collection hopper and a drain valve are provided at the bottom of the filter box. The sludge collection hopper can collect filter residue, and the filter residue can be discharged through the drain valve.

[0031] To ensure timely discharge of wastewater and prevent overflow due to excessive storage in the wastewater tank, a first liquid level sensor (not shown in the figure) can be installed on the wastewater tank. The liquid level sensor is an existing structure, and those skilled in the art can choose according to their needs. Its principle will not be described again. The first liquid level sensor is connected to the first alarm on the control switch. When the first liquid level sensor detects that the set maximum water level has been reached, the first alarm is triggered to provide a drainage alarm.

[0032] Similarly, in order to ensure timely water replenishment of the water storage tank, a second liquid level sensor is installed on the water storage tank. The second liquid level sensor is connected to a second alarm on the control switch. When the second liquid level sensor detects that the water level has reached the set minimum level, the second alarm is triggered to provide a water supply alarm.

[0033] Considering that the lightweight catering cart in this embodiment is movable and prone to shaking during driving, a collision-resistant partition can be installed between the water storage tank and the wastewater filter tank to prevent them from colliding and improve the safety and stability of the internal structure of the catering cart.

[0034] Preferably, the water storage tank is made of food-grade polyethylene (PE) material. Food-grade materials can prevent secondary pollution and ensure that the water quality used is compliant.

[0035] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0036] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light-weight dining car for convenient water use, characterized in that, The food cart is equipped with a handwashing basin and a receiving cavity located below the handwashing basin; the receiving cavity is equipped with a water supply mechanism and a drainage mechanism, and the handwashing basin is equipped with a rotatable faucet and a drain outlet; The water supply mechanism includes a water storage tank and an electric water pump. The water storage tank is provided with an inlet and an outlet. Water is stored in the water storage tank through the inlet. The electric water pump is connected to the outlet and the faucet respectively to form a water supply path, which can allow the water in the water storage tank to flow into the sink through the faucet. The drainage mechanism includes a drain pipe and a wastewater filter box. The drain pipe is connected to the drain outlet and the wastewater filter box respectively to form a drainage path, which can drain the water in the sink into the wastewater filter box. The wastewater filter box is provided with a sewage discharge port, through which wastewater is discharged to the outside. The food cart body is also equipped with a control switch on its exterior. The control switch is electrically connected to the electric water pump, and the electric water pump is connected to the battery inside the food cart body.

2. The light-weight dining car of claim 1, wherein, The wastewater filtration box includes a filter box and a wastewater tank connected together. The filter box includes a filter screen layer, an activated carbon adsorption layer and an oil separation layer from top to bottom. The wastewater filtered by the filter box flows into the wastewater tank for storage.

3. The light-weight dining car of claim 2, wherein, The bottom of the filter box is equipped with a slag collection hopper and a drain valve. The slag collection hopper can collect filter residue, and the filter residue can be discharged through the drain valve.

4. The light-weight dining car of claim 3, wherein, The wastewater tank is equipped with a first liquid level sensor, which is connected to a first alarm on the control switch. When the first liquid level sensor detects that the water level has reached the set maximum level, the first alarm is triggered to provide a drainage alarm.

5. The light-weight dining car of claim 4, wherein, The water storage tank is equipped with a second liquid level sensor, which is connected to a second alarm on the control switch. When the second liquid level sensor detects that the water level has reached the set minimum level, it triggers the second alarm to provide a water supply alarm.

6. The light-weight dining car of claim 5, wherein, A collision-resistant partition is provided between the water storage tank and the wastewater filter tank.

7. The light-weight dining car of claim 6, wherein, The water storage tank is made of food-grade PE material.

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