JPS6340480Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a tank truck equipped with an antifreeze device for use in cold regions.

(b) Conventional technology Conventional tank truck pumps that handle freezing liquids such as water extract the power from the engine from a power splitting box installed on the side of the vehicle transmission.
Because it is mechanically driven via a propeller shaft, the location of the pump is limited, and it is installed in the chassis between the front and rear wheels at the bottom of the tank, and pumps liquid sucked in through the suction pipe from the suction port at the bottom of the tank. The liquid was discharged to the outside through the pump discharge piping, through valves and flowmeters on the front and rear of the vehicle, or on the left and right sides. The pump is located in the chassis below the tank, and the pump, valve, and flow meter are distributed and connected with piping.To prevent freezing, it is best to store them all indoors. Therefore, it has been difficult to heat them all at once using a heater.

(c) Problems that the invention aims to solve Since the pumps, valves, flow meters, piping, etc. of conventional tank trucks that handle freezing liquids such as water are not stored indoors, when tank trucks are used in cold regions, Freezing of liquid caused cracks in pumps, valves, flow meters, piping, etc., resulting in many accidents.

(d) Means for solving the problem The present invention isolates the bottom space of the tank from the outside air using a tank stand and a shielding plate, and remotely drives the pump using hydraulic power, thereby making it possible to freely position the pump. A piping room is provided adjacent to the tank, and the pump, valve, flow meter, and piping are stored in the piping room,
A tank lorry characterized by connecting a tank bottom space and a piping room in a state where they are isolated from the outside air, and heating the piping room by a hot water heater using hot water from a vehicle evaporator, which is effective in preventing damage due to freezing. There is. The present invention will be explained in more detail based on the embodiment shown in the drawings.

Figure 1 is a side view showing an example of the tank truck of the present invention, Figure 2 is a sectional view of the tank, Figure 3 is a plan view showing the main parts of the tank truck of the present invention, and Figure 4 is a side view of the tank truck. It is a diagram.

In the figure, 1 is a chassis, and 2 is a tank, which is mounted on the chassis 1 via two tank stands 3 on the left and right. 4 is a piping room provided at the rear of the tank 2. The lower and front portions of the left and right tank stands 3 are shielded from the outside air by shielding plates 5. A tank bottom space 6 formed by the left and right tank stands 3, the shielding plate 5, and the tank bottom plate communicates with the piping chamber 4 at the rear and is integrally shielded from the outside air. A pump 7 is driven by a hydraulic motor 8.
Reference numeral 9 denotes a hydraulic pump, which is driven via a propeller shaft 12 by the power of the vehicle engine divided by a power splitting box 11 provided on the side of the vehicle transmission 10. The hydraulic motor 8 is driven by hydraulic power generated by a hydraulic pump 9. That is, the pump 7 is configured to be driven by the vehicle engine using hydraulic power as a medium. 13 is the suction port at the bottom of the tank, and the suction pipe 14
The tank 2 is connected to the suction port 15 of the pump 7, and the liquid sucked from the tank 2 is supplied to the outside through the discharge pipe 16, valve 17, flow meter 18, hose reel 19, and hose 20 through the opening/closing door 21 of the piping room. Ru. 22 is a hot water heater that uses hot water from the vehicle radiator to heat the tank bottom space 6 and the inside of the piping chamber 4. In this case, tank 2
Even if the tank is divided into several parts by partition walls and selectively connected to the suction port 15 of the pump 7 by a plurality of suction pipes 14, the suction pipe 14 is passed through the inside of the tank bottom space 6, and outside air is It is possible to have a structure in which the hot water is shut off and heated by the hot water heater 22.

In the case of the tank truck of this invention, the hydraulic pump is driven by power taken from a power split box instead of a normal pump, and is installed in a position inside the chassis that is in direct contact with the outside air, but the hydraulic equipment freezes even in cold regions. It will not be damaged by

It is possible to use a dedicated independent engine as a method of remotely driving the pump, but this requires a ventilator to release exhaust gas, making it difficult to completely isolate it from the outside air, and it is also expensive. It has the disadvantage of becoming a thing. It is also possible to use an electric heater as a heater, but a battery-powered electric heater has insufficient capacity to heat the bottom space of the tank and the inside of the piping room, and an electric heater powered by an external power source cannot heat up while driving. Therefore, if a dedicated power generator is installed, it has the disadvantage of being expensive.

(E) Function The tank truck for use in cold regions of the present invention has a structure in which the pump is remotely driven by hydraulic drive, and the entire liquid piping system is housed in the tank bottom space and piping room, which are isolated from the outside air. ,
Moreover, the structure is such that the inside of the piping chamber can be heated by a hot water heater using a vehicle radiator.

(f) Effects of the invention As mentioned above, the tank truck for cold regions of this invention has all liquid piping systems such as pumps, valves, flow meters, and piping placed in a space isolated from the outside air, and uses hydraulic pressure as the driving source for the pump. This is an inexpensive and simple method that uses only the power of the vehicle engine and hot water from the vehicle engine's radiator, and has the effect of preventing damage to the liquid piping system due to freezing.

[Brief explanation of the drawing]

Figure 1 is a side view showing an example of the tank truck of the present invention, Figure 2 is a sectional view of the tank, Figure 3 is a plan view showing the main parts of the tank truck of the present invention, and Figure 4 is a top view of the tank truck. It is a diagram. 1...car chassis, 2...tank, 3...tank stand,
4... Piping room, 5... Shielding plate, 6... Tank bottom space, 7... Pump, 8... Hydraulic motor, 9...
Hydraulic pump, 10...vehicle transmission,
11...Power division box, 12...Propeller shaft, 13...Tank inlet, 14...Suction piping,
15...Pump suction port, 16...Discharge piping, 17
... Valve, 18 ... Flow meter, 19 ... Hose reel, 20 ... Hose, 21 ... Opening/closing door, 22 ...
…Hot water heater.

Claims (1)

[Scope of utility model registration request] In a tank truck that handles liquids such as water that freeze at low temperatures, the bottom space of the tank is isolated from the outside air by a tank stand and a shielding plate, and a piping room is provided adjacent to the tank on the chassis, and the bottom space of the tank is connected to the piping room. A pump, piping, and other equipment are housed in the piping chamber, the pump is hydraulically driven by the vehicle engine, and a hot water heater using the vehicle radiator is installed in the piping chamber. A tank truck for cold regions with special features.