Summary of the invention
The purpose of the present invention is to provide a kind of transport cases for preventing fruits and vegetables frostbite.
In order to achieve the above objectives, it the technical scheme is that a kind of fruits and vegetables transport case, including cabinet, is equipped in cabinet
Cool room, control room and fresh-keeping chamber, cool room side wall are equipped with closed feed inlet, are fixed with insulation on cool room side wall
Layer, fresh-keeping chamber side wall are equipped with closed feeding port;Being equipped in control room can be along the piston of control room side walls, cool room
It is fixed with the outgassing nonreturn valve being connected to control room on side wall, be fixed with air inlet pipe on fresh-keeping chamber side wall and is connected to control room
Breather check valve, air inlet pipe are connected to breather check valve;The exhaust being connected to cool room is fixed on the side wall of fresh-keeping chamber lower part
Check valve;It is less than the water inlet pipe of air inlet pipe in cool room equipped with diameter, water inlet pipe is far from fresh-keeping chamber one end through cool room and solid
It is scheduled in air inlet pipe, the water one-way valve out being connected to air inlet pipe is fixed in institute's water inlet pipe.
When transporting fruits and vegetables, feeding port is opened, fruits and vegetables are put into fresh-keeping chamber, feeding port is turned off.Then feed inlet is opened,
Ice cube is put into cool room, indoor temperature of freezing reduces, and adds cold water, is located at cool room until cold water floods water inlet pipe
One end turns off feed inlet.
In transportational process, piston is under effect of inertia close to or far from cool room when transport vehicle accelerates perhaps to slow down.It is living
When filling in far from cool room, the cavity positioned at piston close to cool room side increases, and pressure reduces, and the indoor cold air that freezes is from out
Gas check valve enters in control room.When piston is close to cool room, the cavity positioned at piston close to cool room side reduces, and pressure increases
Greatly, cold air enters air inlet pipe from breather check valve.When cold air is flowed along air inlet pipe, the flow velocity in air inlet pipe increases, root
According to Bernoulli effect, the pressure in air inlet pipe reduces, and cold water is inhaled into water inlet pipe, finally enters air inlet pipe, mix cold air
Spraying into fresh-keeping chamber together reduces the temperature of fresh-keeping chamber, and water can increase the humidity of fresh-keeping chamber simultaneously, avoids fruits and vegetables water shortage.It protects
Fresh indoor pressure increases, and gas enters in cool room from exhaust check valve.When having ponding in fresh-keeping chamber, water is from exhaust check valve
Into in cool room.In this way, during transportation, cold air and water can be passed through into fresh-keeping chamber, to fresh-keeping indoor fruits and vegetables
It carries out fresh-keeping.
Feeding port and feed inlet are opened when unloading, and fruits and vegetables, ice cube and water are taken out.
This programme has the beneficial effect that
(1) transport when ice cube the thermal insulation layer being arranged on cool room side wall is separated with fruits and vegetables can be to avoid fresh-keeping chamber and control
Into cool room, fruits and vegetables will not be contacted directly with ice cube indoor heat transfer for a long time, it is possible to avoid fruits and vegetables frost bitten;
Secondly, thermal insulation layer can also avoid avoiding ice cube fast melt in extraneous heat transfer to cool room, extend cooling time.
(2) when the speed of transport vehicle changes, piston can slide in control room under effect of inertia, make cold sky
Gas enters fresh-keeping chamber from cool room, reduces fresh-keeping room temperature, extends the shelf-life of fruits and vegetables.In the whole process, it does not need pair
The sliding of piston is controlled, and the workload of worker is reduced.
(3) when cold air flows through air inlet pipe, the indoor water that freezes is inhaled into air inlet pipe, finally enters from air inlet pipe fresh-keeping
Room increases the humidity of fresh-keeping chamber, avoids fruits and vegetables dehydration.
(4) when fresh-keeping indoor water level is higher than exhaust check valve, fresh-keeping indoor water can be entered by exhaust check valve
Cool room, avoids fresh-keeping chamber ponding, then avoids the fruits and vegetables of lower layer are soaked from rotting.
Preferred embodiment one, as the further improvement to base case, the quantity of cool room and breather check valve is two
A, two cool rooms are located at control room two sides.Close first cool room is understood when piston is to a Slideslip, far from second
Cool room, when sliding to the other side can far from first cool room and close to second cool room, so persistently have cold air into
Enter in fresh-keeping chamber, it is more preferable to the fresh-keeping effect of fruits and vegetables.
Preferred embodiment two, as the further improvement to preferred embodiment one, two cool rooms are interconnected.Two systems at this time
Cold indoor cold air can mutually circulate, wherein one refrigeration it is indoor it is ice melting after, another refrigeration is indoor cold
Air can enter in the cool room, have cold air to enter in fresh-keeping chamber when sliding piston reciprocating.
Preferred embodiment three, as the further improvement to preferred embodiment two, piston is embedded with weight gain block.Transport vehicle speed changes
When change, the inertia of piston increases, and the distance of piston sliding increases, more into fresh-keeping indoor cold air, can be improved to fruit
The fresh-keeping effect of vegetable.
Preferred embodiment four, as the further improvement to preferred embodiment three, fresh-keeping chamber is located at below control room.Fresh-keeping chamber position
In lower section, exhaust check valve is located at fresh-keeping chamber lower part, fresh-keeping indoor gas from exhaust check valve enter cool room after directly into
Enter in the water of cool room, and since ice cube is contacted with water, so the temperature of water is low, the gas into control room can quickly be dropped
Temperature.
Preferred embodiment five is equally fixed with heat insulation layer on cabinet exterior as the further improvement to preferred embodiment four.Absolutely
Thermosphere can absorb extraneous heat to avoid fresh-keeping chamber, avoid the temperature of fresh-keeping chamber from increasing, further increase the fresh-keeping of fresh-keeping chamber
Effect.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Appended drawing reference are as follows: cabinet 1, cool room 2, feed inlet 21, charging lid 22, outgassing nonreturn valve 23, control room 3, into
Gas check valve 31, fresh-keeping chamber 4, exhaust check valve 41, water inlet pipe 5, goes out water one-way valve 51, piston 6, weight gain block 61 at air inlet pipe 32.
As shown in Figure 1, a kind of fruits and vegetables transport case, including cabinet 1, cabinet 1 is interior to be equipped with control room 3, fresh-keeping chamber 4 and two systems
Cold house 2, two cool rooms 2 are located at 1 left and right ends of cabinet, and control room 3 is located at 4 top of fresh-keeping chamber, 1 outer wall of cabinet and refrigeration
Being glued on 2 side wall of room has heat insulation layer, and the material of the heat insulation layer in the present embodiment is aerogel blanket.2 side wall of cool room is equipped with
Feed inlet 21, feed inlet 21 are externally provided with charging lid 22, and charging lid 22 is threadedly coupled with feed inlet 21.Two cool rooms 2 are logical
Piping is interconnected, and is glued in 2 upper portion side wall of cool room and has an outgassing nonreturn valve 23, the outlet side of outgassing nonreturn valve 23 with
Control room 3 is connected to.Fresh-keeping chamber 4 is equipped with feeding port, and feeding port is externally provided with feeding lid, and feeding lid and feeding port screw thread connect
It connects.Being glued at the top of fresh-keeping chamber 4 has air inlet pipe 32 and two breather check valves 31, and two breather check valves 31 are respectively close to left and right two
The cool room 2 of side, and the inlet end of breather check valve 31 is connected to control room 3, the breather check valve 31 of air inlet pipe 32 and left side
Outlet side connection.The side wall gluing of 4 lower part of fresh-keeping chamber is connected to exhaust check valve 41, the outlet side of exhaust check valve 41 and refrigeration
Room 2 is connected to.Water inlet pipe 5 is equipped in left side cool room 2, the diameter of water inlet pipe 5 is a quarter of 32 diameter of air inlet pipe, water inlet pipe
Being glued in 5 has water one-way valve 51 out, and the water inlet end of water one-way valve 51 is connected to cool room 2 out, and 5 lower end of water inlet pipe is located at cool room
2 lower parts, 5 upper end of water inlet pipe is through 2 side wall of cool room and is glued in air inlet pipe 32, and water inlet pipe 5 is connected to air inlet pipe 32.Control
Piston 6 is equipped in room 3, piston 6 can horizontally slip along 3 side wall of control room, and piston 6 is embedded with weight gain block 61, in the present embodiment
Weight gain block 61 is irony.
When transporting fruits and vegetables, feeding lid is opened, fruits and vegetables are put into fresh-keeping chamber 4, feeding lid is turned off.Then open into
Ice cube is put into cool room 2 by material mouth lid 22, and the temperature in cool room 2 reduces, then cold water is added into a cool room 2, until
Cold water floods 5 lower end of water inlet pipe, turns off feed inlet 21.
In transportational process, transport vehicle accelerate or slow down when, piston 6 under effect of inertia along 3 inner wall of control room to the left
Or it slides to the right.When piston 6 slides to the right, the cavity positioned at 6 left side of piston increases, and empty cavity pressure reduces, left side refrigeration
Cold air in room 2 enters in the cavity from outgassing nonreturn valve 23.When piston 6 slides to the left, the cavity positioned at 6 left side of piston subtracts
Small, pressure increases, and cold air enters air inlet pipe 32 from breather check valve 31.When cold air is flowed along air inlet pipe 32, air inlet pipe
Flow velocity in 32 increases, and according to Bernoulli effect, the pressure in air inlet pipe 32 reduces, and cold water is inhaled into water inlet pipe 5, most laggard
Enter air inlet pipe 32, mixes cold air and sprayed into fresh-keeping chamber 4 together.Pressure in fresh-keeping chamber 4 increases, the gas in fresh-keeping chamber 4 from
Exhaust check valve 41 enters in cool room 2.At the same time, the cavity positioned at 6 right side of piston increases, and pressure reduces, right side refrigeration
Cold air in room 2 enters in the cavity on 6 right side of piston.When piston 6 slides to the right again, the cavity positioned at 6 left side of piston increases
Greatly, the cold air of left side cool room 2 enters the cavity in left side;The cavity for being located at 6 right side of piston simultaneously reduces, in the cavity of right side
Cold air enters fresh-keeping chamber 4 from the breather check valve 31 on right side.When having ponding in fresh-keeping chamber 4, water enters from exhaust check valve 41
In cool room 2.In this way, during transportation, being constantly passed through cold air into fresh-keeping chamber 4, the fruits and vegetables in fresh-keeping chamber 4 are protected
It is fresh.
Feeding port and feed inlet 21 are opened when unloading, and fruits and vegetables, ice cube and water are taken out.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these also should be considered as guarantor of the invention
Range is protected, these all will not influence the effect and patent practicability that the present invention is implemented.The present invention omits the technology of description, shape
Shape, construction portion are well-known technique.