CN106904109A - A kind of Multifunctional box applied in long-distance transport automobile - Google Patents

Abstract

A multifunctional box used in long-distance transport vehicles, including a water storage tank; the water storage tank is connected to the engine, the engine is connected to the cooling device, and the cooling device is connected to the water storage tank through the circulation pump I; There is a box, the bottom of the box and the back of the box are both a hollow plate, the hollow plate on the bottom of the box is coiled with a "back" shaped conduit Ⅰ, and the hollow plate on the back of the box is coiled with an "S" shaped conduit Ⅱ, and the "back"-shaped conduit Ⅰ is connected in series with the "S"-shaped conduit Ⅱ; the inlet and outlet of conduit Ⅰ pass through the round hole Ⅰ in the center of the bottom surface of the box, and the conduit after passing out Passing through the body panel and extending downward to the lower body, the circulation pump II located in the lower body is connected to the conduit I, the circulation pump II is connected to the cooling device, and the water storage tank is connected to the conduit I. The box body is simple in structure and novel in design, and can adjust the temperature in the box body according to different seasons.

Description

A multifunctional box used in long-distance transport vehicles

technical field

The invention relates to an automobile auxiliary device, in particular to a multifunctional box used in long-distance transport vehicles.

Background technique

For truck drivers or long-distance bus drivers who often travel long distances, especially in some remote places, eating has become their biggest problem. In the cab, especially in the cold winter, because there is no place to heat the food in the car, I often eat some cold food, which will affect the discomfort of the stomach in the long run. Xietaisheng pain and other diseases; in the hot summer, due to the high temperature of the cab, food stored in the cab will easily deteriorate over time, and eating spoiled food will do more harm to the body; It takes a long time to clean the cab of the transport vehicle, and there may be a large number of bacteria in the high-temperature cab. If the driver eats food that has been eroded by bacteria for a long time, it will definitely cause physical discomfort in the long run. If Physical discomfort during transportation will affect driving, increase the probability of accidents, and prolong the delivery time of the goods, causing immeasurable losses.

Contents of the invention

According to the deficiencies of the prior art, a thermal insulation and cooling box used in long-distance transport vehicles is provided. The box has a simple structure and novel design, and can adjust the temperature in the box according to different seasons.

The present invention is realized according to the following technical solutions:

A multi-functional box body applied in long-distance transport vehicles, including an engine located in the vehicle body, a water storage tank and a cooling device; the water outlet of the water storage tank communicates with the water inlet of the engine, and the water outlet of the engine communicates with the cooling The water inlet of the device is connected, and the water outlet of the cooling device is connected with the water inlet of the water storage tank through the circulating pump I; a square box with a box door hinged on its side is installed on the body plate, and the box The bottom surface of the box and the back of the box are both a hollow plate, and the joints of the two hollow plates are connected. The hollow plate on the bottom of the box is coiled with a "back"-shaped conduit I, and the hollow plate on the back of the box is There is an "S"-shaped conduit II coiled inside, and the "back"-shaped conduit I and the "S"-shaped conduit II are connected in series; the water inlet and outlet of the conduit I are both from the round hole in the center of the bottom surface of the box. Ⅰ, and the conduit passes through a round hole on the body plate and extends downward to the lower body. The water outlet of the circulation pump II in the lower body and the inlet of conduit Ⅰ The water inlets are connected, the water inlet of the circulating pump II is connected with the water inlet of the cooling device, and the water inlet of the water storage tank is connected with the water outlet of the conduit I.

Preferably, it also includes a three-way valve and a temperature controller located in the cab, the three-way valve is respectively connected with the water outlet of the water storage tank, the water outlet of the cooling device and the water inlet of the circulation pump II, the three-way valve An electronic actuator for controlling the opening of the valve is installed on the upper end of the through valve, and the electronic actuator is electrically connected with the temperature controller.

Preferably, an electric valve electrically connected to the temperature controller is also included, and the electric valve is connected in series in the water pipe between the three-way valve and the water outlet of the cooling device.

Preferably, a DC motor is installed at the center of the top surface in the box,

The DC motor is electrically connected to the storage battery located in the vehicle body through wires. The fan blade is fixedly installed on the rotating shaft of the DC motor, and two corresponding inverted L-shaped plates are installed at intervals at the center of the top surface of the box body. A baffle plate is fixed on the side of the two inverted L-shaped plates, so that a U-shaped slot is formed between the two inverted L-shaped plates and a baffle plate. There are two elongated exhaust holes, and a sealing plate is tightly inserted in the U-shaped slot.

Preferably, it also includes a fan blade cover, the fan blade cover accommodates the DC motor and the fan blades therein and is fixed on the top inner wall of the box body.

Preferably, it also includes a temperature control switch located on the top surface of the box, the temperature control switch is connected in series in the circuit of the DC motor, and is used to control the start and stop of the DC motor according to the ambient temperature.

Preferably, a plurality of supporting blocks corresponding to each other are fixed on the left and right side walls of the box body, and any one of the supporting blocks corresponding to each other has a partition plate with a plurality of through holes on it.

Preferably, an ultraviolet lamp is respectively installed on the upper part and the lower part of the inner wall of the box door, and the ultraviolet lamp is electrically connected with the storage battery located in the vehicle body.

Preferably, a square box is fixed on the top surface of the box, a box cover is hinged on the top surface of the box, a layer of steel wire mesh is fixed in the cavity of the square box, and multiple layers of filter cotton are laid on the steel wire mesh. ; There is a detachable container on the upper part of the right side wall of the box, and a round hole III is opened on the sealing cover at the top of the container;

There is a circular hole IV in the middle of the bottom surface of the box body, the inner wall of the circular hole IV is glued to the outer wall of one end of the conduit III, and the other end of the conduit III penetrates through the circular hole V on the top surface of the box body. Inside the box, the conduit III in the box penetrates into the container through the circular hole III.

Preferably, a chute consisting of two L-shaped plates symmetrically arranged up and down is fixed on the upper part of the right side wall of the box from the opening to the middle, and a chute capable of slidingly fitting with the chute is fixed on the side wall of the container. T-shaped buckle; the T-shaped buckle is provided with a T-shaped bump, and the T-shaped bump realizes the expansion and contraction of the T-shaped bump through the spring in the T-shaped buckle; the box at the innermost end of the chute A circular groove is provided on the inner wall, and the T-shaped protrusion penetrates into the circular groove to realize the fixing of the container.

Preferably, a support rod is hinged in the middle of the upper part of the left side wall in the box, and the support rod is hinged with a cup holder; the cup holder is composed of a circular cup bottom and It is composed of arc-shaped side walls that extend around the perimeter and extend upwards. An elastic belt is fixed on the arc-shaped side wall or a Velcro I with a hook is provided on one side of the arc-shaped side wall and a Velcro II with round hair.

Beneficial effects of the present invention:

In the cold winter, the cooling water circulates in the conduit to heat the box, so that the food in the box can be kept warm; a temperature control system is installed, and the driver can adjust the temperature in the box according to his own needs.

In the hot summer, by adjusting the three-way valve and closing the electric valve, the circulating water pump II directly enters the cold water in the water storage tank into the conduit and then cools down the box, so that the food in the box can be preserved; as we all know, in the water storage tank The water temperature will gradually increase with the distance traveled, therefore, the water in the water storage tank will no longer cool down the tank. At this time, it is necessary to turn on the fan and remove the sealing plate, and the rotating fan blade will cool the tank. The hot air in the box is discharged to further cool down the box; there is a temperature control switch, which can automatically control the start and stop of the fan according to the temperature in the box.

A fan blade cover is provided to prevent the fan blade from injuring the person holding the lunch box when it rotates.

A partition is arranged in the box, and more lunch boxes can be placed. The partition is adjustable, and the position of the partition can be adjusted according to the height of the lunch box.

The box is equipped with a purple light lamp, which can sterilize the box and avoid physical discomfort caused by eating spoiled food.

A simple filter is provided, which can initially filter the external water source, and the filtered water can be used as washing water.

It is equipped with cup holders and elastic belts, which can fix various cups on it to prevent the phenomenon of cups being inverted when the car is running; in winter, the cups placed in the box can maintain a certain degree of heat; The cup can keep a certain coolness.

Description of drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another preferred embodiment of the present invention;

Fig. 3 is a schematic diagram of connecting the conduit of the present invention on the bottom surface and the back of the box;

Fig. 4 is the box structure schematic diagram of the present invention;

Fig. 5 is a schematic cross-sectional view of a box of the present invention;

Fig. 6 is a schematic diagram of a box structure with a square box added on the basis of Fig. 1;

Fig. 7 is a schematic cross-sectional view of the box shown in Fig. 6;

Figure 8 is an enlarged schematic view of the container;

Fig. 9 is a schematic structural diagram of a preferred embodiment of the cup holder;

Fig. 10 is a structural schematic diagram of another preferred embodiment of the cup holder;

1—box body, 1-1—box door, 2—conduit Ⅰ, 3—conduit Ⅱ, 4—body plate, 5—round hole Ⅰ, 6—round hole Ⅱ, 7—circulation pump Ⅱ, 8—tee Valve, 9—temperature controller, 10—electronic actuator, 11—electric valve, 21—DC motor, 22—fan blade, 23—inverted L-shaped plate, 24—exhaust hole, 25—baffle plate, 26—sealing Plate, 27—blade cover, 28—support block, 29—partition plate, 30—through hole, 31—ultraviolet lamp, 32—temperature control switch, 40—square box, 41—box cover, 42—steel mesh, 43 —filter cotton, 44—container, 45—sealing cover, 46—round hole III, 47—round hole IV, 48—conduit III, 49—round hole V, 50—chute, 51—T-shaped buckle, 52 —T-shaped bump, 53—spring, 54—round groove, 55—support rod, 56—cup holder, 57—round cup bottom, 58—curved side wall, 59—elastic belt, 60—hook and loop Ⅰ , 61—velcro II, 100—engine, 200—water storage tank, 300—cooling device, 400—circulation pump I, 500—battery.

detailed description

The present invention will be further described through specific embodiments below in conjunction with accompanying drawings 1 to 10 .

Embodiment one:

A multi-functional box body applied in long-distance transport vehicles, including an engine 100 located in the vehicle body, a water storage tank 200 and a cooling device 300; the water outlet of the water storage tank 200 is connected with the water inlet of the engine 100, and the water outlet of the engine 100 It communicates with the water inlet of the cooling device 300, and the water outlet of the cooling device 300 communicates with the water inlet of the water storage tank 200 through the circulating pump I400; Box 1, the bottom surface of box body 1 and the back of box body 1 are a hollow plate, and the joints of the two hollow plates are connected, and the hollow plate on the bottom surface of box body 1 is coiled with a "back"-shaped conduit I2, the box The hollow plate on the back of the body 1 is coiled with an "S"-shaped conduit II3, and the "back"-shaped conduit I2 is connected in series with the "S"-shaped conduit II3; the water inlet and outlet of the conduit I2 are from the center of the bottom surface of the box The pipe passes through the round hole I5, and the conduit passes through the round hole II6 on the body plate 4 and extends downward to the lower body. The outlet of the circulation pump II7 located in the lower body The water inlet is connected with the water inlet of the conduit I2, the water inlet of the circulating pump II7 is connected with the water inlet of the cooling device 300, and the water inlet of the water storage tank 200 is connected with the water outlet of the conduit I2.

It also includes a three-way valve 8 and a temperature controller 9 located in the cab. The three-way valve 8 is respectively connected with the water outlet of the water storage tank 200, the water outlet of the cooling device 300 and the water inlet of the circulation pump II7. The three-way valve 8 An electronic actuator 10 for controlling the opening of the valve is installed on the upper end of the valve, and the electronic actuator 10 is electrically connected with the temperature controller 9.

work process:

When the switch of the circulation pump II7 located in the cab is turned on, the circulation pump II7 starts to run, so that the cooling water flowing out of the cooling device 300 enters the bottom and side surfaces of the box body 1 through the conduit I2 and the conduit II3,

At this time, the box body 1 is heated, and finally the water in the conduit flows into the water storage tank 200 . As long as the circulation pump II7 is not closed, the water in the conduit will circulate forever.

If the driver feels that the temperature in the box body 1 is too high at this time, the temperature can be controlled by adjusting the temperature controller 9, and the temperature controller 9 adjusts the opening of the electronic actuator 10 according to the adjusted temperature (that is, through the temperature controller The temperature sensor in 9 measures the temperature of the mixed water and then sends a feedback signal to the controller in the temperature controller 9 in time, and then the controller adjusts the opening of the electronic actuator 10 in time, thereby forming a simple temperature closed-loop control system), so that the water in the water storage tank 200 is mixed with the cooling water flowing out from the cooling device 300 and then flows into the conduit.

Embodiment two:

On the basis of the first embodiment, it also includes an electric valve 11 electrically connected to the temperature controller 9 , and the electric valve 11 is connected in series in the water pipe between the three-way valve 8 and the water outlet of the cooling device 300 . A DC motor 21 is installed at the center of the top surface in the box body 1, and the DC motor 21 is electrically connected to the battery 500 located in the vehicle body through wires. Two corresponding inverted L-shaped plates 23 are installed at intervals at the center position of the outer top surface, and a baffle plate 25 is fixed on the sides of the two inverted L-shaped plates 23, so that the two inverted L-shaped plates 23 and a baffle plate Form a U-shaped slot between 25, have a plurality of elongated exhaust holes 24 on the top surface of the casing 1 in this U-shaped slot, and also tightly insert a sealing plate 26 in the U-shaped slot.

It also includes a fan blade cover 27 , the fan blade cover 27 accommodates the DC motor 21 and the fan blades 22 therein and is fixed on the top inner wall of the box body 1 .

It also includes a temperature control switch 32 located on the top surface of the box body 1, the temperature control switch 32 is connected in series in the circuit of the DC motor 21, and is used to control the start and stop of the DC motor 21 according to the ambient temperature.

work process:

The electric valve 11 is closed by the temperature controller 9, at this time, the cold water in the water storage tank 200 flows into the conduit, thereby cooling the tank 1. The water temperature in the water storage tank 200 will gradually increase along with the distance traveled. Therefore, the water in the water storage tank 200 will no longer cool down the casing 1. At this time, it is necessary to turn on the fan and remove the sealing plate 26. The fan discharges the hot air in the box body 1, thereby further cooling the box body 1; a temperature control switch 32 is provided, which can automatically control the start and stop of the fan according to the temperature in the box body.

Embodiment three:

On the basis of Embodiment 1 or Embodiment 2, a plurality of supporting blocks 28 corresponding to each other are respectively fixed on the left and right side walls of the box body 1, and any one of the supporting blocks 28 corresponding to each other has a A partition 29 with a plurality of through holes 30 . An ultraviolet lamp 31 is respectively installed on the top and bottom of the inner wall of the box door 1-1, and this ultraviolet lamp 31 is electrically connected with the storage battery 500 positioned in the vehicle body again.

Embodiment four:

On the basis of Embodiment 1 or Embodiment 2, a square box 40 is fixed on the top surface of the box body 1, and a box cover 41 is hinged on the top surface of the square box 40, and a layer of steel wire mesh is fixed in the cavity of the square box 40. 42. A multi-layer filter cotton 43 is laid on the steel wire mesh 42; a detachable container 44 is provided on the upper right side wall of the box body 1, and a round hole III 46 is opened on the sealing cover 45 at the top of the container 44 There is a round hole IV47 in the middle of the bottom surface of the box body 1, the inner wall of the round hole IV47 is glued to the outer wall of one end of the conduit III48, and the other end of the conduit III48 penetrates through the round hole V49 on the top surface of the box body 1 Into the box body 1, the conduit III48 in the box body 1 penetrates into the container 44 from the circular hole III46. On the upper part of the right side wall in the box body 1, a chute 50 composed of two L-shaped plates arranged symmetrically up and down is fixed from the opening to the middle. The T-shaped buckle 51; the T-shaped buckle 51 is provided with a T-shaped bump 52, and the T-shaped bump 52 realizes the expansion and contraction of the T-shaped bump 52 through the spring 53 in the T-shaped buckle 51; A circular groove 54 is provided on the inner wall of the box body 1 at the innermost end of 50 , and the T-shaped protrusion 52 penetrates into the circular groove 54 to realize the fixation of the container 44 .

work process:

Open the box cover 41, and then pour the external water source (river water or rainwater) into the square box 40. At this time, the turbid water will be filtered by the multi-layer filter cotton 43 and then enter the container 44 through the conduit III 48 for further processing. Storage, if the water needs to be used, the container 44 is pulled out from the chute 50, and the sealing cover 45 is opened to use the water inside.

Embodiment five:

On the basis of Embodiment 1 or Embodiment 2, a support rod 55 is hinged at the middle of the upper part of the left side wall in the box body 1, and the support rod 55 is hinged with a cup holder 56; the cup holder 56 is formed by a circular cup The bottom 57 and the arc side wall 58 extending upward along the periphery of the circular cup bottom 57 are formed. An elastic band 59 is fixed on the arc side wall 58 or is provided with a band on one side of the arc side wall 58. The Velcro I60 with hooks and the other side is provided with a Velcro II61 with round hair.

In the cold winter, the cooling water circulates in the conduit to heat the box 1, so that the food in the box 1 can be kept warm; a temperature control system is installed, and the driver can adjust the temperature in the box 1 as needed .

In the hot summer, by adjusting the three-way valve 8 and closing the electric valve 11, the circulating water pump II 7 directly inputs the cold water in the water storage tank 200 into the conduit and then cools down the tank 1, so that the food in the tank 1 can be preserved ; The water temperature in the water storage tank 200 will gradually increase along with the distance traveled, therefore, the water in the water storage tank 200 will no longer cool down the casing 1. At this time, the fan needs to be turned on and the sealing plate 26 is taken off , the fan discharges the hot air in the box 1, thereby further cooling the box 1; a temperature control switch 32 is provided, which can automatically control the start and stop of the fan according to the temperature in the box 1.

Fan blade cover 27 is provided to prevent the fan blade 22 from injuring the person who takes the lunch box when rotating.

A partition 29 is arranged in the casing 1, and more lunch boxes can be placed. The partition is adjustable, and the position of the partition 29 can be adjusted according to the height of the lunch box.

The box body 1 is provided with a purple light lamp 31, which can disinfect and sterilize the box body 1, because it takes a long time to clean the driver's cab for a long-distance transport vehicle, so there may be a large amount of bacteria potentially. There will also be bacteria in the body 1. If the driver eats the food placed in the box 1 for a long time, it will definitely cause physical discomfort in the long run. If physical discomfort occurs during transportation, it will affect driving and increase the probability of accidents , and it will also prolong the delivery time of the goods, causing immeasurable losses.

A simple filter is provided, which can initially filter the external water source, and the filtered water can be used as washing water.

A cup holder 56 and an elastic belt 59 are provided, which can fix various cups on it to prevent the car from falling over while driving; in winter, the cups placed in the box body 1 can maintain a certain degree of heat, and in summer, The cups placed in the casing 1 can maintain a certain coolness.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A multi-functional box used in long-distance transport vehicles, including an engine (100), a water storage tank (200) and a cooling device (300) located in the vehicle body; The water outlet of the water storage tank (200) is connected to the water inlet of the engine (100), the water outlet of the engine (100) is connected to the water inlet of the cooling device (300), and the cooling device (300) The water outlet is connected to the water inlet of the water storage tank (200) through the circulation pump I (400); It is characterized by: A square box body (1) with a box door (1-1) hinged on its side is installed on the car body plate (4), and the bottom surface of the box body (1) and the back side of the box body (1) are both a piece Hollow board, and the joints of the two hollow boards are connected, the hollow board on the bottom of the box (1) is coiled with a "back"-shaped conduit I (2), and the hollow board on the back of the box (1) An "S"-shaped conduit II (3) is coiled, and the "back"-shaped conduit I (2) is connected in series with the "S"-shaped conduit II (3); The water inlet and outlet of the conduit I (2) pass through the circular hole I (5) in the center of the bottom surface of the box body (1), and the conduit after passing out passes through the body panel (4) There is a round hole II (6) passing through and extending down to the lower body, the water outlet of the circulating pump II (7) located in the lower body is connected with the water inlet of the conduit I (2), and the circulation The water inlet of the pump II (7) is connected with the water inlet of the cooling device (300), and the water inlet of the water storage tank (200) is connected with the water outlet of the conduit I (2). 2. A multifunctional box used in long-distance transport vehicles according to claim 1, characterized in that it also includes a three-way valve (8) and a temperature controller (9) located in the cab, the The three-way valve (8) is respectively connected with the water outlet of the water storage tank (200), the water outlet of the cooling device (300) and the water inlet of the circulating pump II (7). The upper end of the three-way valve (8) is installed with An electronic actuator (10) for controlling the opening of its valve, and the electronic actuator (10) is electrically connected with the temperature controller (9). 3. A multifunctional box used in long-distance transport vehicles according to claim 2, characterized in that it also includes an electric valve (11) electrically connected to the temperature controller (9), and the electric valve (11) Connected in series in the water pipe between the three-way valve (8) and the water outlet of the cooling device (300). 4. A multifunctional box used in long-distance transport vehicles according to any one of claims 1 to 3, characterized in that: a DC motor is installed at the center of the top surface of the box (1) (twenty one), The DC motor (21) is electrically connected to the battery (500) located in the vehicle body through wires, and the fan blade (22) is fixedly installed on the rotating shaft of the DC motor (21), and is located at the center of the top surface outside the box body (1). Two corresponding inverted L-shaped plates (23) are installed at intervals, and a baffle plate (25) is fixed on the side of the two inverted L-shaped plates (23), so that the two inverted L-shaped plates (23) and one A U-shaped slot is formed between the baffle plates (25), and a plurality of elongated exhaust holes (24) are arranged on the top surface of the casing (1) in the U-shaped slot, and there are also There is a sealing plate (26) tightly inserted. 5. A multifunctional box used in long-distance transport vehicles according to claim 4, characterized in that: it also includes a wind blade cover (27), and the wind blade cover (27) connects the DC motor (21) And fan blades (22) are accommodated therein and fixed on the top inner wall of the box body (1). 6. A multifunctional box used in long-distance transport vehicles according to claim 4, characterized in that it also includes a temperature control switch (32) located on the top surface of the box (1), the The temperature control switch (32) is connected in series in the circuit of the DC motor (21), and is used to control the start and stop of the DC motor (21) according to the ambient temperature thereof. 7. A multifunctional box used in long-distance transport vehicles according to any one of claims 1 to 3, characterized in that: the left and right side walls of the box (1) are fixed with A plurality of supporting blocks (28) corresponding to each other, any one of the supporting blocks (28) corresponding to each other has a partition (29) with a plurality of through holes (30) on it; An ultraviolet lamp (31) is respectively installed on the upper part and the lower part of the inner wall of the box door (1-1), and the ultraviolet lamp (31) is electrically connected with the storage battery (500) located in the vehicle body. 8. A multifunctional box used in long-distance transport vehicles according to any one of claims 1 to 3, characterized in that: a square box (40) is fixed on the top surface of the box (1) , the top surface of the square box (40) is hinged with a box cover (41), a layer of steel wire mesh (42) is fixed in the cavity of the square box (40), and multiple layers of filter cotton are laid on the steel mesh (42) (43); A detachable container (44) is provided on the upper right side wall of the box (1), and a round hole III (46) is opened on the sealing cover (45) at the top of the container (44); There is a round hole IV (47) in the middle of the bottom surface of the box (1), the inner wall of the round hole IV (47) is glued to the outer wall of one end of the conduit III (48), and the end of the conduit III (48) The other end penetrates into the box body (1) from the round hole V (49) on the top surface of the box body (1), and the conduit III (48) in the box body (1) passes through the round hole III (46) into the container (44). 9. A multifunctional box used in long-distance transport vehicles according to claim 8, characterized in that: on the upper part of the right side wall in the box (1), there is a two-piece fixed from the opening to the middle. A chute (50) composed of L-shaped plates is symmetrically arranged up and down, and a T-shaped buckle (51) that can slide and fit with the chute (50) is fixed on the side wall of the container (44); The T-shaped buckle (51) is provided with a T-shaped bump (52), and the T-shaped bump (52) realizes the T-shaped bump (52) through the spring (53) in the T-shaped buckle (51). ) stretching; A circular groove (54) is provided on the inner wall of the box (1) at the innermost end of the chute (50), and the T-shaped protrusion (52) penetrates into the circular groove (54) to realize the fixation of the container (44) . 10. A multifunctional box used in long-distance transport vehicles according to any one of claims 1 to 3, characterized in that: there is a hinge at the middle of the upper part of the left side wall in the box (1) Support rod (55), this support rod (55) is hinged with a cup holder (56) again; The cup holder (56) is composed of a circular cup bottom (57) and an arc-shaped side wall (58) extending upward along the periphery of the circular cup bottom (57). On the arc-shaped side wall (58) An elastic belt (59) is fixed or a Velcro I (60) with hooks on one side of the curved side wall (58) and a Velcro with round hair on the other side II (61).