JPH0616357U - Tank vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention provides a tank vehicle having a tank provided with a hose reel on a vehicle body frame, so that the hose reel together with its operation panel can be extended outward of the vehicle body. It is a tank vehicle that can be operated near the hose reel to improve workability. [Structure] A stay 9 is fixed to a tailgate 4 of a pressure tank Tp on a vehicle body frame F, and a swivel column 75 is attached to the stay 9 so as to be biased to one side in the left-right direction from a vertical center line CC of the pressure tank Tp. It is provided so as to be able to turn around an axis V-V in the up-and-down direction.
An operation panel 72 for operating this is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a pressure tank equipped with a hose reel is mounted on a vehicle body frame, and the liquid contained in the pressure tank can be discharged by the hose wound around the hose reel, and the discharged liquid can be used for cleaning or the like. It is related to tank vehicles.

[0002]

[Prior art]

 In a conventional tank vehicle, it is known that a hose reel is provided so as to extend laterally of the tank (see Japanese Utility Model Publication No. 2-124980 and Japanese Utility Model Publication No. 62-164989).

[0003]

[Problems to be solved by the device]

 By the way, in a tank vehicle equipped with such a hose reel, since the direction of delivery of the hose delivered from the hose reel is directional, the delivery direction of the hose is limited when the hose reel is in a fixed position. There is a problem of poor workability. Therefore, in order to solve the above-mentioned problem, the hose reel can be extended laterally with respect to the tank so that the hose can be drawn out in any direction as described in the above publication. On the other hand, since the hose reel is supported by a long swivel arm or a turntable, a large space is required to extend the hose reel. There was another problem that it was difficult to operate because the operation panel was located far from the hose reel.

The present invention has been made in view of the above circumstances, and a hose reel and its operation panel can be extended laterally of a pressure tank by a simple support structure so as to solve the above problems. The present invention aims to provide a new tank vehicle.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the present invention is characterized in that a pressure tank is mounted on a vehicle body frame, and a hose reel is provided at a tailgate that opens and closes a discharge port on the rear surface of the pressure tank. In a vehicle, a stay fixed to the tailgate is provided with a swivel strut that is biased to one side in the left-right direction from the vertical centerline of the pressure tank so as to be swivelable around an axis line in the up and down directions. The purpose is to support the reel and the operation panel for operating this.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway side view of a tank vehicle of the present invention, FIG. 2 is an enlarged side view of a rear portion of the vehicle, FIG. 3 is a rear view taken along the line 3 of FIG. 2, and FIG. FIG. 5 is a plan view taken along line 4 of FIG. 5, and FIG.

1 to 4, a vehicle body frame F of a tank vehicle is composed of a main frame M and a sub-frame S above the main frame M, and a tank frame Tf is mounted on the sub-frame S. The rear end is connected to the subframe S 1 by a hinge pin 1. A telescopic dump cylinder 2 is connected between the front end of the tank frame Tf and the sub-frame S, and the extension operation of the cylinder 2 allows the tank frame S to be tilted backward around the hinge pin 1. .

A tank assembly T is integrally mounted on the tank frame Tf, and the tank assembly T includes a sealed pressure tank Tp in the latter half portion and a sealed fresh water tank in the first half portion thereof. It is composed of Tw and a closed separator chamber Cs formed between both tanks Tp and Tw.

In the fresh water tank Tw, a blower B is installed in a state of being immersed in the contained liquid in the tank Tw, and a water pump P is integrally provided on a subframe S in front of the tank frame Tf. It is installed. The blower B and the water pump P are both rotationally driven by a running engine of a tank vehicle via a PTO (power take-out device).

The pressure tank Tp is formed in a tubular shape, and a discharge port 3 is opened on the rear surface thereof, and the discharge port 3 is opened and closed by a tailgate 5 pivotally supported on the upper portion thereof. A free end of an opening / closing cylinder 7 pivotally supported by the pressure tank Tp is connected to the tailgate 5, and the tailgate 5 can be opened / closed by expanding / contracting the cylinder 7.

On the outer surface of the tailgate 5, the large hose reel 10 and its operation panel 72 are firmly supported. Next, the support structure will be described mainly with reference to FIGS. 2 to 4. A stay 9 is fixedly provided on the outer surface of the tailgate 5, and the stay 9 has a center line C- of the pressure tank Tp. A slewing motor 73 with a reduction gear and a thrust bearing 74 are attached to the upper and lower portions of the outer edge portion which is deviated to one side from C along the vertical axis V-V at intervals in the vertical direction. The output shaft of the motor 73 is connected to the upper end of a swivel strut 75 whose lower end is rotatably supported by the thrust bearing 74 via a connection flange 76. According to the drive of the motor 73, the swivel strut 75 is rotatable about the axis V-V.

A support frame 77 is cantilevered on the swivel column 75. The large hose reel 10 is rotatably supported on the inner surface side of the support frame 77, and the hose reel 10 is directly driven by a motor 78 attached to the support frame 76. A hose 13 is wound around the hose reel 10, and a cleaning nozzle 14 is attached to the free end of the hose 13.

The operation panel 72 is supported on the outer surface side of the support frame 77, and operation devices such as a reel turning lever 79 and a reel rotation lever 80 are attached to the operation panel 72. Reference numeral 81 is a lock lever of the hose reel 10.

Returning to FIG. 1, a small hose reel 12 is rotatably supported on the lower portion of the tailgate 5 via another stay 11, and the hose 15 wound around the hose reel 12 is supported. A cleaning gun 16 is attached to the free end.

As shown in FIG. 1, the pressure tank Tp is divided into a separation chamber 19 and a sludge chamber 20 by a partition wall 18. The partition wall 18 is formed in a disk shape and is rotatably supported on both side walls of the pressure tank Tp by a support shaft 21. In the pressure tank Tp, an opening / closing cylinder 23 pivotally supported by the pressure tank Tp is connected to an upper portion of the partition wall 18, and the contraction operation of the cylinder 23 causes the partition wall 18 to move as shown in FIG. As shown by the solid line, the inside of the high-pressure tank Tp is erected to be fluid-tightly divided into the separation chamber 19 and the sludge chamber 20, and according to the extension operation of the opening / closing cylinder 23, the partition wall 18 is shown by the chain line in FIG. It is possible to make the separation chamber 19 and the sludge chamber 20 communicate with each other by tilting them down by about 90 °. A packing 24 is attached to the outer periphery of the partition wall 18.

The partition wall 18 is provided with a communication passage 25 that communicates the separation chamber 19 and the sludge chamber 20, and a first filter 26 is attached to an end of the communication passage 25 on the sludge chamber 20 side. A check valve 27 is provided at the end of the separation chamber 19 side, and the check valve 27 allows the flow of fluid only from the sludge chamber 20 to the separation chamber 19. A second filter 28 supported by the front wall of the separation chamber 19 is provided in the separation chamber 19, and the second filter 28 is connected to the suction circuit 45 (FIG. 6) of the water pump P.

A revolving cylinder 31 is rotatably supported on the upper rear wall of the pressure tank Tp, and a supporting boom 30 is supported on the revolving cylinder 31 so that the supporting boom 30 can be elevated. A flexible suction pipe 32 is supported by the support boom 30, and a base end of the suction pipe 32 is hung from a lower portion of the swirling cylinder 31 and communicates with a suction port 33 opening in the sludge chamber 20. . An opening / closing valve 29 is provided at a communication portion between the suction pipe 32 and the suction port 33. The suction pipe 32 is extended outwardly from the support boom 30, and its tip can be inserted into the sewer 34 as described later.

FIG. 6 shows an overall schematic view of the air circuit Ca and the water circuit Cw of the present invention.

Next, the air circuit Ca connected to the blower B and the tank assembly T will be described with reference to FIG.

The suction pipe 35 connected to the suction port of the liquid ring blower B is directly opened to an air chamber 37 formed in the upper portion of the fresh water tank Tw, and the discharge pipe 36 connected to the discharge port thereof is clean water. It is connected to an intake / exhaust switching valve V supported on the ceiling wall of the tank Tw. The suction pipe 35 can be selectively communicated with the inlet / outlet port 37 ₁ communicating with the separator chamber Cs via the air chamber 37 or the atmosphere opening port 37 ₂ opening to the atmosphere by the switching operation of the intake / exhaust switching valve V. Also, the discharge pipe 36 can be selectively communicated with the atmosphere opening port 37 ₂ or the inlet / outlet port 37 ₁ by the switching operation of the intake / exhaust switching valve V.

The separator chamber Cs and the sludge chamber 20 are communicated with each other through a first air pipe 38, and a float valve 40 is provided at the opening end of the first air pipe 38 on the sludge chamber 20 side. Further, the separator chamber Cs is communicated with the separation chamber 19 and the atmosphere via a second air pipe 39, and a float valve 41 is provided at a communication portion of the second air pipe 39 with the separation chamber 19. Further, first and second air bleeding valves 42 and 43 are provided on the downstream side and above the communication portion of the second air pipe 39 to the separation chamber 19, respectively. If both are opened, the separator chamber Cs is communicated with the atmosphere, and if only the second air bleed valve 43 is opened, the separator chamber Cs is communicated with the separation chamber 19.

Next, the water circuit Cw connected to the water pump P, the tank assembly T, and the hoses 13 and 15 wound around the hose reels 10 and 12 will be described with reference to FIG.

A discharge circuit 46 is connected to the discharge port of the water pump P, a four-way branch joint 47 is connected to the end of the water pump P, and an external cleaning circuit 17 is connected to one of the connection ports. A washing valve 44 is provided on the way, and the hose 13 is communicated with the end of the washing valve 44 through a communication passage 13 ₁ provided in the large hose reel 10. The other two connection ports of the branch joint 47 are connected to another external cleaning circuit 48 and an in-tank cleaning circuit 49, and the other external cleaning circuit 48 is connected to the hose 15 and the inside of the tank. The end of the cleaning circuit 49 is connected to the jet nozzle 50 provided on the bottom wall of the front end of the separation chamber 19 of the pressure tank Tp. On-off valves 51 and 52 are connected to the other external cleaning circuit 48 and the tank cleaning circuit 49, respectively.

The water suction circuit 45 connected to the suction port of the water pump P is branched into first, second and third branch pipes 53, 54 and 55, and the first branch pipe 53 is connected to the first opening / closing valve 5 7, the second branch pipe 54 communicates with the lower part of the separation chamber 19 via the second opening / closing valve 58, and the third branch pipe 55 further connects the third opening / closing valve 59 and the first recycle valve 60. Through the bottom of the fresh water tank Tw. Further, in the third branch pipe 55, a fourth branch pipe 56 is branched from the middle of the third opening / closing valve 59 and the first recycle valve 60, and the second recycle valve 61 is interposed in the middle of the branch pipe 56. It is equipped. The opening end of the fourth branch pipe 56 is opened in the separation chamber 19 and the second filter 28 is connected thereto.

In FIG. 6, reference numerals 64, 66 and 67 are drain valves.

A suction valve 70 and a discharge valve 71 are provided in the upper and lower intermediate portions and the lower portion of the tailgate 5, and the suction valve 70 is used to suck a fluid other than sludge into the sludge chamber 20. The discharge valve is used to discharge the contained fluid in the pressure tank Tp.

Next, the operation of this embodiment will be described.

Now, a description will be given of a case where the suctioned and stored water in the pressure tank Tp is discharged from the hose 13 wound around the hose reel 10 to wash the sewer 34. After the tank vehicle is stopped, the operator operates it. By operating the reel turning lever 79 provided on the board 72, the motor 73 with a reduction gear is driven to rotate the hose reel 10 in the storage position (solid line position in FIG. 4) in the extension direction around the turning column 75. The hose reel 10 is held at the extended position (the position indicated by the chain line in FIG. 4) where the hose 13 is most easily extended, and the reel rotation lever 80 provided on the operation panel 72 is operated to drive the motor 78 to extend the hose reel 10. Rotate to and feed out the hose 13.

Next, as shown in FIG. 7, after controlling the opening / closing of each valve and then driving the water pump P, the stored water previously stored in the separation chamber 19 of the pressure tank Tp is discharged by the second filter 28. After being filtered, it is sucked into the water pump P through the suction circuit 45. By opening the cleaning valve 44, the high-pressure water from the water pump P is pressure-fed from the discharge circuit 46 to the cleaning nozzle 14 through the external cleaning circuit 17 and the hose 13. When the hose 13 is inserted into the sewer 34 after the washing nozzle 14 is opened, high-pressure water is jetted from the hose 13 and the sewer 34 is neatly and efficiently washed. At that time, the hose 13 is jetted behind the washing nozzle 14. The cleaning nozzle 14 can be advanced in the sewer 34 by the jet reaction force of the cleaning water.

By the way, since the hose reel 10 around which the hose 13 is wound can be swivel-controlled around the swivel support 75 in the cleaning operation of the sewer 34, the hose reel 10 is placed at the overhang position where the hose 13 is most easily extended. It is possible to position the hose reel 10 and the operation panel 72 for operating the hose reel 10 at the extended position so that the operator can approach them easily and the workability is very good.

Further, since the hose reel 10 can swivel around the swivel support column 75, which is biased to one side in the left-right direction from the vertical center line C-C of the pressure tank Tp, the hose reel 10 can swivel with a small turning radius without interfering with the vehicle body. Therefore, it is possible to reduce the maximum amount of the hose reel 10 and the operation panel 72 that are projected to the side of the vehicle.

After the above work is completed, the hose 13 is driven into the hose reel 10 by driving the motor 78, and then the hose reel 10 is returned to the storage position. Further, by closing the washing valve 44 and opening the opening / closing valve 51, the discharge circuit 46 can be communicated with another external washing circuit 48, and the hose 15 is fed from the small hose reel 12 to wash the hose 15. It is possible to jet pressure cleaning water from the gun 16 to clean other external equipment such as the outer peripheral surface of the tank assembly T.

In this embodiment, the pressure tank Tp is depressurized or pressurized by driving the blower B and switching control of the intake / exhaust switching valve V to suck and store sludge water or the like in the tank Tp. The stored sludge water is configured to be discharged to the outside, and by driving the water pump P, the sludge water in the sludge water in the sludge chamber 20 is separated and filtered and transferred to the separation chamber 19, or the separation chamber 19 or fresh water. The stored water in the tank Tw is configured to be discharged to the outside as cleaning water, but this is not the gist of the present invention, and thus detailed description thereof is omitted.

Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment and various embodiments can be made within the scope of the present invention. For example, in the above-mentioned embodiment, the hose reel is extended by driving the motor with reduction gear, but it may be extended by other driving means such as manual or chain drive. In the example, the hose reel is rotationally driven by a motor, but it may be manually rotatable.

[0036]

[Effect of device]

 As described above, according to the present invention, in the tank vehicle in which the pressure tank is mounted on the vehicle body frame, and the hose reel is provided in the tailgate that opens and closes the discharge port on the rear surface of the pressure tank, On the stay fixed to the gate, a swivel strut is provided so as to be biased to one side in the left-right direction from the vertical centerline of the pressure tank so that the swivel strut can be swung around an axis in the vertical direction. Since the operation panel to be operated is supported, the operator can approach the hose reel and the operation panel and operate them by controlling the hose reel and the operation panel to the side of the vehicle body. The hose reel can hold the hose at the position where it can be most easily drawn out, and can greatly improve workability as compared with the conventional one. In addition, since the swivel column is biased to one side in the left-right direction from the vertical centerline of the pressure tank, the radius of swivel of the hose reel and operation panel is reduced, and the maximum amount of overhang of them outside the vehicle body is reduced. As a result, it is possible to facilitate the work in a narrow space, reduce the weight of the support portion of the hose reel, and simplify the structure.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a tank vehicle.

FIG. 2 is an enlarged side view of the rear part of the tank vehicle.

FIG. 3 is a rear view taken along the line 3 of FIG.

FIG. 4 is a plan view taken along line 4 of FIG.

FIG. 5 is an overall side view of a tank vehicle tank assembly in a dumped state.

FIG. 6 is an air and water circuit diagram of a vehicle that also serves as a cleaning and water absorption

Figure 7: Sewer cleaning action diagram

[Explanation of symbols]

 3 ... Discharge port 5 ... Tailgate 9 ... Stay 10 ...- Hose reel 72 ...- Operation panel C-C ... Vertical center line (pressure tank) V-V ... Vertical axis (tailgate)

Claims (1)

[Scope of utility model registration request] 1. A pressure tank (T) is mounted on a body frame (F).
p) is mounted and a hose reel (10) is provided on a tailgate (5) that opens and closes a discharge port (3) on the rear surface of the pressure tank (Tp). ) Of the pressure tank (Tp) is biased to one side in the left-right direction from the vertical centerline (C-C) of the pressure tank (Tp), and the swivel support (75) is attached to the vertical axis (V
A tank vehicle characterized in that the hose reel (10) and an operation panel (72) for operating the hose reel (10) are provided so as to be rotatable around -V).