A food delivery vehicle with heat preservation function

Abstract

The present invention provides a food delivery vehicle with a heat preservation function, comprising: an outer shell, an inner shell, a liquid level sensor, a food delivery vehicle handle, a rear wheel, a front wheel, a heating wire, a power source, a water adding mechanism, and a drainage mechanism. The invention is characterized in that the inner shell encloses a heat preservation chamber for accommodating food, a water storage chamber is formed between the outer shell and the inner shell, a food delivery vehicle handle is arranged at the upper rear portion of the food delivery vehicle, two rear wheels are arranged at the lower rear portion of the food delivery vehicle, two front wheels are arranged at the lower front portion of the food delivery vehicle, a heating wire for heating water and a power source for providing electric energy to the heating wire are arranged in the water storage chamber, a water filling port is arranged at the rear portion of the food delivery vehicle, a drainage port is arranged at the front portion of the food delivery vehicle, the horizontal position of the water filling port is higher than the drainage port, a water filling mechanism is arranged at the water filling port, and a drainage mechanism is arranged at the drainage port.

Description

Technical Field

[0001] The invention relates to the field of catering equipment, and in particular to a meal delivery vehicle with a heat preservation function. Background Art

[0002] Meal delivery carts are commonly used catering equipment in restaurants and trains. At present, there are many meal delivery carts with insulation function on the market. In order to keep the food in the meal delivery cart warm, a water storage chamber is designed in the meal delivery cart to use the heat of the water to keep the food in the meal delivery cart warm.

[0003] In order to prevent the water in the water storage chamber from breeding bacteria or even stinking, the water in the water storage chamber needs to be replaced regularly, so the water storage chamber must be equipped with a water inlet and a drain outlet. When using a dining car to deliver food, the water inlet and the drain outlet are closed with a valve or a plug. However, due to negligence of the staff, it is easy to operate incorrectly, resulting in the hot water in the water storage chamber leaking out during the water adding or delivery process, scalding the staff or customers.

[0004] For this reason, it is necessary to invent a safer meal delivery vehicle with heat preservation function. Summary of the invention

[0005] The present invention aims to provide a meal delivery vehicle with a heat preservation function, comprising: an outer shell, an inner shell, a liquid level sensor, a meal delivery vehicle handle, a rear wheel, a front wheel, a heating wire, a power source, a water adding mechanism, and a drainage mechanism. The inner shell forms a heat preservation chamber for accommodating food, and a water storage chamber is formed between the outer shell and the inner shell. A meal delivery vehicle handle is provided at the upper rear portion of the meal delivery vehicle, two rear wheels are provided at the lower rear portion of the meal delivery vehicle, and two front wheels are provided at the lower front portion of the meal delivery vehicle. A heating wire for heating water and a power source for providing electrical energy to the heating wire are provided in the water storage chamber. A water filling port is provided at the rear portion of the meal delivery vehicle, and a drainage port is provided at the front portion of the meal delivery vehicle. The horizontal position of the water filling port is higher than the drainage port.

[0006] Preferably, a liquid level sensor is provided on the inner wall of the shell. When the water level is lower than the liquid level sensor, the liquid level sensor sends a low water level signal to remind the staff to add water. The installation position of the liquid level sensor is higher than the drain outlet and lower than the water inlet in the horizontal direction.

[0007] Preferably, a water adding mechanism is provided at the water adding port, and a drainage mechanism is provided at the drainage port.

[0008] Preferably, the water adding mechanism includes a rubber stopper and a float, a rubber stopper notch is provided below the rubber stopper, the front end of the rubber stopper is provided as an inclined surface, a float protrusion which cooperates with the rubber stopper notch is provided above the float, and the rear end of the float protrusion is an inclined surface. When the float protrusion is stuck in the rubber stopper notch, the rubber stopper cannot be pulled out from the water adding port. Only when the float protrusion is separated from the rubber stopper notch can the rubber stopper be pulled out from the water adding port.

[0009] Preferably, the drainage mechanism includes a pull ring, a connecting block, a gate plate, a brake block, a drainage through hole, and a magnetic pad. The pull ring is used for the staff to insert their fingers into the pull ring to pull or press the gate plate. The pull ring is connected to the gate plate through a connecting block. The brake block is connected to the lower end of the gate plate. A drainage through hole is provided in the middle of the gate plate. When the gate plate is pressed so that the drainage through hole is in a drainage position, the brake block contacts the front wheel, making the food delivery cart unable to move. When the gate plate is pulled up so that the drainage through hole is in a non-drainable position, the brake block is detached from the front wheel, and the food delivery cart can be moved at this time.

[0010] Preferably, the drainage mechanism is also provided with a removable magnetic pad for padding the connection block.

[0011] Preferably, the outer shell and the inner shell are made of stainless steel.

[0012] Preferably, the float is made of a material with a density less than that of water.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) When the water level in the water storage chamber approaches the water inlet, the float protrusion is stuck in the notch of the rubber plug, and the staff cannot pull out the rubber plug, preventing accidental scalding. Only when the water level drops to a safe height can the float protrusion be separated from the notch of the rubber plug, and the staff can pull out the rubber plug.

[0015] (2) The benefit of such a drainage mechanism design is that when the food cart is in the drainage state, the brake block locks the front wheel, making it impossible to push the food cart, thereby preventing the staff from accidentally pushing the food cart into the delivery area without closing the drain outlet, thereby scalding the customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 -Schematic diagram of the structure of a food delivery vehicle with heat preservation function according to the present invention.

[0017] Figure 2 - A partial enlarged view of a water-adding mechanism of a food delivery vehicle with a heat preservation function according to the present invention.

[0018] Figure 3 - A partial enlargement of the drainage mechanism of the food delivery vehicle with heat preservation function of the present invention Figure 1 .

[0019] Figure 4 - A partial enlargement of the drainage mechanism of the food delivery vehicle with heat preservation function of the present invention Figure 2 .

[0020] The components include: an outer shell 1, an inner shell 2, a liquid level sensor 3, a food delivery vehicle handle 4, a rear wheel 5, a front wheel 6, a heating wire 7, a power supply 8, a water adding mechanism 9, a drainage mechanism 10, a rubber plug 91, a rubber plug notch 911, a float 92, a float protrusion 921, a pull ring 101, a connecting block 102, a gate plate 103, a brake block 104, a drainage through hole 105, and a magnetic pad 106. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] like Figure 1 The schematic diagram of the structure of a food delivery vehicle with a heat preservation function shown in the figure comprises: an outer shell 1, an inner shell 2, a liquid level sensor 3, a food delivery vehicle handle 4, a rear wheel 5, a front wheel 6, a heating wire 7, a power source 8, a water adding mechanism 9, and a drainage mechanism 10. The inner shell 2 encloses a heat preservation chamber for accommodating food, and a water storage chamber is formed between the outer shell 1 and the inner shell 2. A food delivery vehicle handle 4 is provided at the upper rear of the food delivery vehicle, two rear wheels 5 are provided at the lower rear of the food delivery vehicle, and two front wheels 6 are provided at the lower front of the food delivery vehicle. A heating wire 7 for heating water and a power source 8 for providing electric energy to the heating wire 7 are provided in the water storage chamber. A water inlet is provided at the rear of the food delivery vehicle, and a drainage outlet is provided at the front of the food delivery vehicle. The horizontal position of the water inlet is higher than the drainage outlet. The outer shell 1 and the inner shell 2 are made of stainless steel.

[0025] Embodiment 2:

[0026] On the basis of Example 1, a liquid level sensor 3 is provided on the inner wall of the housing 1. When the water level is lower than the liquid level sensor 3, the liquid level sensor 3 sends a low water level signal to remind the staff to add water. The installation position of the liquid level sensor 3 is higher than the drain outlet and lower than the water inlet in the horizontal direction.

[0027] Embodiment 3:

[0028] On the basis of the embodiment 2, a water adding mechanism 9 is provided at the water adding port, and a water draining mechanism 10 is provided at the water draining port.

[0029] Embodiment 4:

[0030] On the basis of Example 3, Figure 2 As shown, the water adding mechanism 9 includes a rubber plug 91 and a float 92 (the float is made of a material with a density less than that of water), a rubber plug notch 911 is provided below the rubber plug 91, the front end of the rubber plug 91 is provided as an inclined surface, a float protrusion 921 which cooperates with the rubber plug notch 911 is provided above the float 92, and the rear end of the float protrusion 921 is an inclined surface, when the float protrusion 921 is stuck in the rubber plug notch 911, the rubber plug 91 cannot be pulled out from the water adding port, when the water level drops, the float 92 also drops with the water level, and the rubber plug 91 can be pulled out only after the float protrusion 921 is separated from the rubber plug notch 911.

[0031] The benefit of the water adding mechanism 9 is that when the water level in the water storage chamber approaches the water adding port, the float protrusion 921 is stuck in the rubber plug notch 911, and the staff cannot pull out the rubber plug 91, thus preventing accidental scalding. Only when the water level drops to a safe height can the float protrusion 921 be separated from the rubber plug notch 911, and the staff can pull out the rubber plug 91.

[0032] Embodiment 5:

[0033] On the basis of Example 4, Figure 3 As shown, the drainage mechanism 10 includes a pull ring 101, a connecting block 102, a gate plate 103, a brake block 104, a drainage through hole 105, and a magnetic pad 106. The pull ring 101 is used for the staff to insert their fingers into the pull ring 101 to pull or press the gate plate 103. The pull ring 101 is connected to the gate plate 103 through the connecting block 102. The brake block 104 is connected to the lower end of the gate plate 103, and a drainage through hole 105 is provided in the middle of the gate plate 103.

[0034] Specifically, Figure 4 As shown, the drainage mechanism 10 is further configured with a removable magnetic spacer 106 .

[0035] like Figure 3 As shown, when the gate plate 103 is pressed so that the drainage hole 105 is in a drainage position, the brake block 104 contacts the front wheel 6, so that the meal delivery vehicle cannot move. Figure 4 As shown, when the gate plate 103 is pulled up so that the drainage through hole 105 is in a non-drainable position, the brake block 104 is disengaged from the front wheel 6, and the dining car can be moved. In order to prevent the pulled gate plate 103 from falling due to gravity, the drainage mechanism 10 is also configured with a removable magnetic pad 106 for padding the connecting block 102.

[0036] Furthermore, in order to prevent the magnetic pad 106 from sliding, the magnetic pad 106 is made of a magnet and can be adsorbed on the housing 1 .

[0037] The benefit of designing the drainage mechanism 10 in this way is that when the dining cart is in the drainage state, the brake block 104 locks the front wheel 6, making it impossible to push the dining cart, thereby preventing the staff from accidentally pushing the dining cart into the food delivery area without closing the drainage port, thereby scalding the customers.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A food delivery vehicle with heat preservation function, comprising: An outer shell, an inner shell, a liquid level sensor, a food delivery vehicle handle, a rear wheel, a front wheel, a heating wire, a power source, a water adding mechanism, and a drainage mechanism, wherein the inner shell forms a heat preservation chamber for accommodating food, a water storage chamber is formed between the outer shell and the inner shell, a food delivery vehicle handle is provided at the upper rear portion of the food delivery vehicle, two rear wheels are provided at the lower rear portion of the food delivery vehicle, two front wheels are provided at the lower front portion of the food delivery vehicle, a heating wire for heating water and a power source for providing electric energy to the heating wire are provided in the water storage chamber, a water adding port is provided at the rear portion of the food delivery vehicle, a drainage port is provided at the front portion of the food delivery vehicle, and the horizontal position of the water adding port is higher than the drainage port; A water adding mechanism is provided at the water adding port, and a drainage mechanism is provided at the drainage port; The drainage mechanism is also equipped with a removable magnetic pad to pad the connection block. The magnetic pad is made of magnets and can be adsorbed on the housing. The water adding mechanism includes a rubber plug and a float. A rubber plug notch is provided below the rubber plug. The front end of the rubber plug is provided with an inclined surface. A float protrusion that cooperates with the rubber plug notch is provided above the float. The rear end of the float protrusion is an inclined surface. When the water level in the water storage chamber approaches the water adding port, the float protrusion is stuck in the rubber plug notch, and the rubber plug cannot be pulled out from the water adding port. When the water level drops to a safe height, the float protrusion is separated from the rubber plug notch, and the rubber plug can be pulled out from the water adding port. The drainage mechanism includes a pull ring, a connecting block, a gate plate, a brake block, a drainage through hole, and a magnetic pad. The pull ring is used for the staff to put their fingers into the pull ring to pull or press the gate plate. The pull ring is connected to the gate plate through a connecting block. The brake block is connected to the lower end of the gate plate. A drainage through hole is provided in the middle of the gate plate. When the gate plate is pressed so that the drainage through hole is in a drainage position, the brake block contacts the front wheel, making the food delivery cart unable to move. When the gate plate is pulled up so that the drainage through hole is in a non-drainable position, the brake block is disengaged from the front wheel. At this time, the food delivery cart can be moved to prevent the staff from accidentally pushing the food delivery cart into the food delivery area without closing the drain outlet, thereby scalding the customers.

2. A food delivery vehicle with heat preservation function as claimed in claim 1, characterized in that: A liquid level sensor is arranged on the inner wall of the shell. When the water level is lower than the liquid level sensor, the liquid level sensor sends a low water level signal to remind the staff to add water. The installation position of the liquid level sensor is higher than the drain outlet and lower than the water inlet in the horizontal direction.

3. A food delivery vehicle with heat preservation function as claimed in any one of claims 1 to 2, characterized in that: The outer shell and inner shell are made of stainless steel.

4. A food delivery vehicle with heat preservation function as claimed in claim 3, characterized in that: The float is made of a material that is less dense than water.

Images