JP2000350775A - Cold insulation carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out sterilization hygienically and reliably without bad influence on its load even in transport of a container. SOLUTION: This cold insulation carrier T has a container C for receiving a load such as perishables with a cargo room maintained at a fixed temperature by a refrigerating cycle. In this case, a liquid spray nozzle having a first connection port connected to an antibacterial liquid reservoir tank and a second connection port connected to an air tank A for an air brake of the cold insulation carrier T through an electromagnetic valve is provided inside the container C, and the electromagnetic valve arranged to be on - off controllable from a driver's cab.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerated transport vehicle for transporting cargoes such as fresh foods while storing them at a low temperature.
More specifically, the present invention relates to an insulated transport vehicle that can appropriately spray an antibacterial liquid into a container even during transportation.

[0002]

2. Description of the Related Art Fresh foodstuffs such as meat, fish, vegetables, etc., lose their freshness over time. Therefore, in order to transport this kind of fresh food by truck to a destination, an insulated (or refrigerated) transport vehicle having an air conditioner using a refrigeration cycle in a box-shaped container is used.

[0003] In addition to maintaining the freshness of cargo, the smell is a problem particularly in fish meat. That is, if the odor of the previously transported cargo remains in the container room, the odor is transferred to the current cargo, so it is necessary to deodorize each time the cargo changes.

In addition, in recent years, food poisoning cases caused by pathogenic bacteria such as O-157 have been regarded as a social problem. Have been. Therefore, some proposals have been made to sterilize and deodorize the interior of the container. Much of this is due to ozone (O ₃ ), but recently photocatalysts have also received attention.

For example, in Japanese Patent Application Laid-Open No. 10-250378, an ozone generator is mounted on a container, and the ozone (O ₃ ) generated by the ozone generator is put on an air flow blown out from an evaporator for a refrigerator in a refrigeration cycle. They are evenly distributed in the container room, and the container room is sterilized and deodorized by the sterilizing and deodorizing effects of ozone.

[0006]

However, when the concentration of ozone becomes 0.1 ppm or more, it is said that ozone has a bad influence on the human body and cargo. Therefore, 0.1p
It is necessary to keep the concentration at a low level of pm or less, but sufficient sterilization and deodorization cannot be expected.

[0007] Therefore, conventionally, in a state where the inside of the container is empty, the container room is sterilized by high-concentration ozone.
I try to deodorize. That is, sterilization and deodorization treatment with ozone is not performed during transportation, which is not necessarily safe in terms of sanitation.

Further, even if the concentration of ozone is made low, strict control of the concentration is required, and a complicated control device is required in addition to the ozone generator. Absent.

On the other hand, in the case of using a photocatalyst, it is said that the effect of antibacterial and deodorizing effects is obtained only when the surface of the photocatalyst is irradiated with ultraviolet rays, and that the photocatalyst acts only on air passing through the inside of the photocatalyst and has no immediate effect. Therefore, little effect can be expected on the cargo itself loaded in the warehouse. In order to improve the effect, the size of the fan must be increased by increasing the size of the blower fan and increasing the amount of circulating air.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide a safe and reliable sanitary filter even during the transportation of containers without adversely affecting the cargo. An object of the present invention is to provide an insulated transport vehicle that can be sterilized.

[0011] In order to achieve the above object, the present invention relates to an insulated transport vehicle having a container for storing cargoes such as fresh food products, wherein the cargo room is maintained at a predetermined temperature by a refrigeration cycle. Inside, there is provided a liquid spray nozzle having a first connection port connected to the antibacterial liquid storage tank and a second connection port connected to the air brake air tank of the refrigerated transport vehicle via a solenoid valve. In addition, a control unit for controlling the on / off of the electromagnetic valve is provided on the cab side, and the antimicrobial liquid is appropriately sprayed from the liquid spray nozzle toward the inside of the container. .

Various kinds of antibacterial liquids (antibacterial liquid medicines) are commercially available. The antibacterial liquid used here is also used as a food cleaning agent and as an additive, and is used for vegetables, fruits, and the like.
Don't worry if you spray directly on fresh fish or meat. Therefore, the spray can be sprayed into the closed container room, and the cargo can be effectively sterilized even during transportation. In addition, a deodorizing (deodorizing) effect is also exerted by the self-cleaning action.

A pressurized air source is required for the liquid spray nozzle. In the present invention, an air tank for an air brake of the insulated transport vehicle is used as the pressurized air source. Therefore, between the air tank and the second connection port of the liquid spray nozzle, in addition to the solenoid valve, an air filter for removing oil contained in pressurized air from the air tank,
It is preferable to further connect a pressure reducing valve for reducing the pressure of the pressurized air to a predetermined value.

Further, in order to easily mount the antibacterial liquid in an existing container, it is preferable that the antibacterial liquid storage tank, the liquid spray nozzle, the air filter and the pressure reducing valve are incorporated in one housing to form a unit. In this case, the liquid spray nozzle is preferably attached so that the spray angle with respect to the housing can be freely adjusted. Further, the liquid spray nozzle may be provided with a flow rate adjusting means for adjusting the spray flow rate.

On the other hand, the control unit installed in the cab has:
A timer for setting the spraying time of the liquid spraying nozzle is provided. According to this, the antibacterial liquid can be sprayed into the container as a fixed amount.

A float switch for detecting the liquid level of the antibacterial liquid is provided in the antibacterial liquid storage tank, and the control unit includes a liquid light which is turned on when the liquid level detected by the float switch becomes lower than a predetermined level. It is preferable to provide a run-out indicator lamp, whereby the run-out can be known in advance while staying in the cab.

The object of the present invention is not limited to the refrigerated transport vehicle.
That is, the refrigerated transport vehicle has a refrigeration cycle like the insulated transport vehicle, and it can be said that the difference is only the inside temperature of the container. Therefore, the present invention naturally includes a truck called a refrigerated truck.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described with reference to an embodiment shown in the drawings.

As shown in FIG. 1, the cold storage transport vehicle T is provided with a container C on its carrier, and a spray unit 1 for spraying an antibacterial liquid is installed in the container C. In this embodiment, the spray unit 1 is a container C
It is provided on the upper part of the wall on the driver cab D side.

The cab D is provided with a control unit 2 for controlling the spray unit 1. In addition,
The inside of the container C is maintained at a predetermined temperature by a refrigeration cycle (not shown). The refrigeration cycle may be a known one.

The spray unit 1 is connected to an air hose AH extending from an air tank A for air brake provided on the cold transport vehicle T and a signal cable P from the control unit 2.

As shown in the perspective view of FIG. 2, the spray unit 1 has a box-shaped housing 3 made of, for example, metal, and a front panel 31 is attached to the front surface thereof. In this embodiment, the front panel 31 is rotatably attached to the housing 3 via hinges 32 provided on the lower side.

On the left and right of the upper part of the front panel 31, a housing 3 is provided.
So-called snap locks 34, 34 are provided, respectively, which hold the front panel 31 in a closed state in cooperation with the locking claws 33, 33 on the side. Also, in the upper center of the front panel 31,
An elliptical opening 35 corresponding to the liquid spray nozzle 5 built in the housing 3 is formed.

FIG. 3 is a bottom view of the spray unit 1. According to this, an air connection portion 36 to which an air hose AH is connected and a signal cable P from the control portion 2 are connected to the bottom surface of the housing 3. A cable connection portion 37 and a test button 38 for testing whether the spray mechanism operates normally are provided respectively.

As shown in FIG. 4, the housing 3 is mounted in the container C via the bracket 4. The bracket 4 includes a substantially U-shaped frame including a top stay 41, a back stay 42, and a bottom stay 43, and is fixed to the wall surface W of the container C by rivets 44.
A hinge plate 45 is attached to a tip of the upper stay 41.

The housing 3 is set in the bracket 4 so as to be placed on the bottom stay 43, and a hinge plate 45 is provided.
And each part of the bottom stay 43 is screwed with a screw 46. According to this attachment structure, the spray unit 1 can be attached to the existing container C.

Next, the spraying device housed in the spraying unit 1 will be described with reference to FIG. FIG. 5 is a front view in a state where the front panel 31 of the housing 3 is opened.

According to this, the nozzle 5 is provided in the housing 3.
And a resin tank 6 for storing an antibacterial liquid, an air filter 7, a pressure reducing valve 8, and a solenoid valve 9 as an electromagnetic valve. The nozzle 5 has a support plate 39
Is disposed at the center of the upper part of the inside of the housing 3.

In this embodiment, the solenoid valve 9
Is mounted on the wall surface of the housing 3 via an appropriate mounting bracket. This solenoid valve 9 is connected to the signal cable P
Is connected to the control unit 2 on the driver's cab D side.
In FIG. 5, the pressure reducing valve 8 is arranged on the rear side of the air filter 7, and therefore, a part thereof is indicated by a chain line.

The antibacterial liquid storage tank 6 is made of a hardly corrosive resin such as polyethylene, and is fixed by a belt B provided in the housing 3 so as not to move easily. As shown in FIG. 6, the tank 6 includes a tank body 61 having a handle 62 at an upper part,
And a cap 64 screwed into the first opening 63.

A suction pipe 68 having a filter 69 at its lower end is provided through the cap 64. The suction pipe 68 is connected to the nozzle 5 via an appropriate pipe. In the tank main body 61, a float switch 65 for detecting the level of the antibacterial liquid contained in the tank is provided.

The float switch 65 has a cylinder 67 having a sensor (for example, a reed switch) not shown therein, and a float 66 connected to the lower end of the cylinder 67 so as to be movable up and down. When the float 66 is lowered to a predetermined height position as it is consumed, the sensor outputs a liquid-out signal. In addition,
The float switch 65 is connected to the control unit 2 via the signal cable P.

Referring to FIG. 7, the air filter 7
Is provided with a cup body 71 made of, for example, a transparent synthetic resin, and a sealing ring 72 screwed airtightly into an upper end opening of the cup body 71. Inside the sealing ring 72, a mantle 7 as an oil removing filter element is provided.
3 is attached via an O-ring (not shown).
A drain valve 74 is provided at the bottom of the cup body 71 for extracting oil and the like accumulated inside.

Returning to FIG. 5, since the pressure reducing valve 8 is disposed on the back side of the air filter 7 as described above, a part thereof is indicated by a chain line. The pressure reducing valve 8 includes an operation handle 82 at an upper part thereof. The pressure can be adjusted by pulling up the operation handle 82, turning it in a predetermined direction, and returning it to the position shown in the figure again, and the pressure is displayed on the air gauge 83.

As shown in FIG. 8, the nozzle 5 has the upper part of the nozzle body 51 mounted on a support plate 39 provided on the upper part of the housing 3 via bolts 53.
Therefore, by turning the bolt 53 with the wrench R, the direction of the injection hole 52 in the nozzle main body 51 can be arbitrarily adjusted. For example, it can be made variable within a range of 30 degrees left and right in the horizontal direction.

As shown in FIG. 9, the nozzle body 5
1 has a first supply port 54 to which air is connected to the opposite side of the injection hole 52, and a second supply port 55 to which antibacterial liquid is supplied from the tank 6. A screw type flow control knob 56 for adjusting the amount of the antibacterial liquid supplied from the second supply port 55 is provided at a lower portion of the nozzle body 51.
Is provided.

FIG. 10 schematically illustrates a connection system of the spray unit 1. In the figure, the air supply path is AH, and the antimicrobial liquid supply path is LH. The air supplied from the air connection part 36 provided on the bottom surface of the housing 3 is first introduced into the air filter 7. The air cleaned by the air filter 7 is then supplied to a pressure reducing valve 8, where the pressure is reduced to a predetermined value. Then, the air reaches the first supply port 54 of the nozzle 5 via the solenoid valve 9 that controls the supply of air.

As the air is blown out from the injection holes 52, the antibacterial liquid in the tank 6 is sucked up and introduced into the second supply port 55 of the nozzle 5 through the supply path LH. By turning the flow control knob 56,
The supply amount is set.

Next, the control unit 2 for controlling the spray unit 1 will be described with reference to the perspective view of FIG. The control unit 2 includes a box-shaped control box 21, and a power supply is turned on on a front surface (operation surface) thereof.
A power switch 22 for turning on / off, a power indicator lamp 23, a spray button 24 for spraying an antibacterial liquid,
An out-of-liquid indication lamp 25 for notifying that the amount of liquid in the tank 6 has decreased, and a spray time setting timer 26 for setting a spray time per one time are provided. In addition,
The power supply of this spraying device is obtained from a battery (24 V DC or 12 V DC) mounted on the cool transport vehicle T.

In the operation procedure of the control unit 2, first, the power switch 22 is turned on, and it is confirmed that the power indicator lamp 23 is turned on. Next, when the spray button 24 is pressed, the antibacterial liquid L is sprayed from the spray unit 1 into the container C within the set time of the spray time setting timer 26 (1 to 30 seconds in this embodiment). When the remaining amount of the antibacterial liquid in the tank 6 reaches a predetermined amount (about 250 cc in this embodiment), the out-of-liquid indicating lamp 25 is turned on.

Various antibacterial liquids are currently available on the market. In this example, Takeguard (trade name) containing a natural antibacterial component manufactured by Takex Co., Ltd., diluted 10 times with water was used. I have. This antibacterial liquid is also used as a food cleaning agent and as an additive, and antibacterial tests have demonstrated an immediate effect of about 10 seconds after adhesion and a persistence of 7 days or more. It also has a deodorizing effect due to its self-cleaning action.

In the above-described embodiment, the spraying time per spray can be set by the timer. However, if necessary, the spraying interval can be set, for example, in units of one hour. In the case of a cold storage vehicle of a type that circulates cool air in the container C, it is preferable to install the spray unit 1 near the outlet of the cool air.

As another embodiment, the antibacterial liquid may be sprayed into the container C from the nozzle 5 in conjunction with opening and closing of a door provided on the rear or side of the container C. That is, a switch for detecting the opening and closing of the door may be provided, and when the door is closed, the solenoid valve 9 may be turned on for a predetermined time to spray the antibacterial liquid from the nozzle 5.

The direction of the nozzle 5 may be automatically changed by connecting a swing mechanism by a motor to the nozzle 5. In the above embodiment, the entire spraying unit 1 is
However, in some cases, only the nozzle 5 can be installed in the container C, and the other tanks 6 and the air filters 7 can be installed outside the container C. Included in the invention.

It should be noted that the above-described embodiment is directed to a cold storage transport vehicle provided with the antibacterial liquid spraying unit 1, but it is obvious to those skilled in the art that the present invention can be applied to a freeze transport vehicle. It is to be understood that only the spray unit 1 itself manufactured for use in a cool or refrigerated transport vehicle is included in the present invention.

[0046]

As described above, according to the present invention,
It has a container where cargo such as fresh food is stored,
In a refrigerated transport vehicle whose cargo compartment is maintained at a predetermined temperature by a refrigeration cycle, a first connection port connected to an antibacterial liquid storage tank and an electromagnetic brake air tank of the refrigerated transport vehicle are provided in the container. A liquid spray nozzle having a second connection port connected via a valve is provided so that the solenoid valve can be turned on and off from the cab side, thereby adversely affecting the cargo even during container transportation. It is possible to provide an insulated transport vehicle that can be sanitized (sterilized) without worrying about sanitation without hygiene.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing an overall configuration of a cold storage transport vehicle according to an embodiment of the present invention.

FIG. 2 is a perspective view of a spray unit used in the embodiment.

FIG. 3 is a bottom view of the spray unit.

FIG. 4 is a side view showing a state where the spray unit is attached to a container wall surface.

FIG. 5 is a front view showing a state where a front panel of the spray unit is opened.

FIG. 6 is a partial sectional view of an antibacterial liquid storage tank stored in the spray unit.

FIG. 7 is a partial cross-sectional view of an air filter housed in the spray unit.

FIG. 8 is a perspective view showing a state where a nozzle is attached to the spray unit.

FIG. 9 is a side view of a nozzle attached to the spray unit.

FIG. 10 is a system diagram showing a supply path through which air and an antibacterial liquid are supplied to nozzles of the spray unit.

FIG. 11 is a perspective view showing a control unit of the spray unit.

[Explanation of symbols]

 Reference Signs List 1 spraying unit 2 control unit 3 housing 4 bracket 5 nozzle 6 tank 7 air filter 8 pressure reducing valve 9 solenoid valve (solenoid valve) C container D driver's seat P power cord R wrench T refrigerated transport vehicle AH air supply path LH chemical supply path

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Tsuchiya 2-9-1, Shozusawa, Itabashi-ku, Tokyo F-term (reference) 4B021 LT02 LT03 LT06 MC01 MK03 MP03 4C058 AA21 BB07 DD01 DD05 DD06 DD14 EE26 JJ06 JJ24 JJ28

Claims (7)

[Claims] An insulated transport vehicle having a container for storing cargoes such as perishables, wherein the cargo room is maintained at a predetermined temperature by a refrigeration cycle. A liquid spray nozzle having a first connection port to be connected and a second connection port to be connected to an air tank for air brake of the refrigerated transport vehicle via an electromagnetic valve is provided,
A refrigerated transport vehicle, wherein a control unit for controlling the on / off of the solenoid valve is provided on the cab side, and an antibacterial liquid is appropriately sprayed from the liquid spray nozzle toward the inside of the container. 2. An air filter for removing oil contained in pressurized air from the air tank in addition to the solenoid valve, between the air tank and a second connection port of the liquid spray nozzle. 2. The insulated transport vehicle according to claim 1, further comprising a pressure reducing valve for reducing the pressure of the pressurized air to a predetermined value. 3. The method according to claim 1, wherein the antimicrobial liquid storage tank, the liquid spray nozzle, the air filter, and the pressure reducing valve are incorporated in a single housing held at a predetermined position in the container via a bracket. The insulated transport vehicle according to claim 2, characterized in that: 4. The refrigerated transport vehicle according to claim 2, wherein the liquid spray nozzle is attached to the casing such that a spray angle thereof is adjustable. 5. The refrigerated transport vehicle according to claim 1, wherein the liquid spray nozzle is provided with flow rate adjusting means for adjusting the spray flow rate. 6. The insulated transport vehicle according to claim 1, wherein the controller is provided with a timer for setting a spray time of the liquid spray nozzle. 7. A float switch for detecting the liquid level of the antimicrobial liquid storage tank is provided in the antimicrobial liquid storage tank, and the control unit controls the liquid level detected by the float switch to be equal to or lower than a predetermined level. 2. An out-of-liquid indicator lamp which is lit when the lamp is turned off.
Or the insulated transport vehicle according to 6.