JP6981887B2 - Suction device and suction wheel equipped with it - Google Patents

Description

The present invention relates to a suction device for sucking and collecting a suction object and a suction wheel provided with the suction device.

Conventionally, at construction work sites, sewage treatment plants, etc., a suction device has been provided to collect sludge, earth and sand, waste liquid, and other collection objects in a receiver tank, and the collected collection objects are transported to a predetermined location such as a treatment plant. A suction device is known.

For example, the suction wheel of Patent Document 1 includes a receiver tank for collecting an object to be collected, a tailgate that rotates around a hinge pin provided on the upper end side of the receiver tank to open and close the rear end opening, and the tailgate. It is provided in the tailgate and is provided with a hose hanger that supports the hose connected to the receiver tank in a wound state.

Japanese Unexamined Patent Publication No. 2016-179766 (particularly FIGS. 1 and 3)

In the case of such a suction wheel, since the tailgate can rotate around the hinge pin, it is necessary to appropriately lubricate the hinge pin with lubricating oil such as grease using a grease gun or the like.

However, the hinge pin is at a height that is difficult for workers to reach, and the hose wound around the hose hanger interferes with the refueling work.

The present invention has been made in view of this point, and an object of the present invention is to make it easy to refuel even when a hose is wound around a hose hanger.

In order to achieve the above object, in the present invention, the refueling position is provided at an appropriate position within the reach of the worker.

Specifically, in the first invention, the receiver tank for collecting the object to be collected and the receiver tank
A tailgate that rotates around the hinge pin provided on the upper end side of the receiver tank to open and close the rear end opening, and
A hose hanger provided on the tailgate and supported by winding a hose connected to the receiver tank, and a hose hanger.
The above hinge pin is equipped with a lubrication pipe that lubricates the lubricating oil.
One end of the refueling pipe is connected to the hinge pin, and the other end extends downward to the base of the hose hanger.

According to the above configuration, by lowering the other end of the refueling pipe connected to the hinge pin at one end to the base of the hose hanger, the refueling work can be performed within the reach of the worker. Further, if the other end is at the base of the hose hanger, the refueling work can be easily performed without being disturbed by the hose wound around the hose hanger in a ring shape.

In the second invention, in the first invention,
The other end of the refueling pipe is provided at a position exposed when viewed from the rear in a state where the hose is wound around the hose hanger.

According to the above configuration, when the hose is wound around the hose hanger in an annular shape, the refueling portion of the refueling pipe is arranged in a portion visible from the rear inside the hose. Therefore, the refueling work can be easily performed without being disturbed by the hose.

In the third invention, in the first or second invention,
The other end of the refueling pipe is connected to a block fixed to the base of the hose hanger.

According to the above configuration, by providing a block for fixing the other end of the refueling pipe at the base of the hose hanger, it is not necessary to weld the block or the like to the tailgate side having a relatively thin wall thickness. Further, since the other end is securely fixed to the base of the hose hanger, it is easy to perform refueling work.

In the fourth invention, in any one of the first to third inventions,
The intermediate portion of the refueling pipe is fixed to a clip fixed to the base of the hose hanger.

According to the above configuration, since the intermediate portion of the refueling pipe is securely fixed to the base of the hose hanger, the refueling pipe does not shift when the tailgate is opened and closed.

The suction wheel of the fifth invention is equipped with the suction device of any one of the first to the fourth inventions.

According to the above configuration, it is possible to obtain a highly commercial suction vehicle that can be easily refueled even when the hose is wound around the hose hanger.

As described above, according to the present invention, since one end of the refueling pipe is connected to the hinge pin of the hinge portion and the other end is provided at the base of the hose hanger, refueling can be easily performed even when the hose is wound around the hose hanger. Can be done.

It is a side view which shows the hose hanger and its surroundings in an enlarged manner. It is a side view which shows the refueling pipe enlarged. It is an enlarged rear view of the IC part of FIG. It is an enlarged rear view of the ID part of FIG. It is a side view which shows the suction wheel which has the suction device which concerns on embodiment of this invention. It is a top view which shows the suction wheel which has the suction device which concerns on embodiment of this invention. It is a rear view which shows the suction wheel which has the suction device which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

2 to 4 show a suction device 1 according to an embodiment of the present invention, and the suction device 1 is mounted on a suction wheel 2. A subframe 4 is provided on the chassis 3 of the suction wheel 2, and a suction device 1 is provided on the subframe 4.

Specifically, a receiver tank 5 for collecting objects to be collected, such as sludge, earth and sand, and waste liquid, is mounted on the rear portion of the subframe 4. The receiver tank 5 has, for example, a tank body 5a having a circular cross-section with a rear end opening 5e, and a tailgate 5c that operably closes the rear end opening 5e. The tailgate 5c is rotatably supported on the upper rear end of the tank body 5a via a hinge pin 5b. An opening / closing cylinder 5d is provided between the tank body 5a and the tailgate 5c, and by expanding / contracting the opening / closing cylinder 5d, the tailgate 5c can open / close the rear end opening 5e of the tank body 5a. ing.

A receiver tank pressurizing / depressurizing pipe 7 is connected to the upper part of the tank body 5a. Below the tailgate 5c, a suction port 8 with an on-off valve that serves as a suction port for the object to be collected and a discharge port 9 with an on-off valve that serves as a discharge port for the object to be collected are provided.

The receiver tank 5 is pivotally supported with respect to the subframe 4 via a tilting shaft 10 provided behind the subframe 4. A tilting cylinder 11 is provided between the subframe 4 and the receiver tank 5. By expanding and contracting the tilting cylinder 11, the receiver tank 5 rotates upright or tilts around the tilting shaft 10.

When the suction device 1 sucks and collects the object to be collected in the receiver tank 5, the suction hose 52 (shown in FIG. 4) connected to the suction port 8 is used from the outside due to the decompression and the air flow in the receiver tank 5. The object to be collected is sucked into the receiver tank 5. On the other hand, when the suction device 1 discharges the object to be collected in the receiver tank 5 to, for example, a sludge treatment plant, the air in the receiver tank 5 is pressurized and the suction hose 52 connected to the discharge port 9 is used in the receiver tank 5. The objects to be collected are discharged to the outside. Further, by opening the tailgate 5c and rotating the receiver tank 5 upright, it is possible to discharge the object to be collected in the receiver tank 5.

Further, a blower 25 is provided on the subframe 4 between the cab 13 and the receiver tank 5 to pressurize and depressurize the air in the receiver tank 5 to generate an air flow. The blower 25 is rotationally driven by the driving force of an engine (not shown) connected via the drive shaft 14 of the PTO of the suction wheel 2. Piping connected to the blower 25, various valves, an operation panel 15, and the like are arranged around the blower 25.

As shown in FIGS. 1A and 4, a hose hose 50 is provided above the tailgate 5c to support the suction hose 52 connected to the suction port 8 and the discharge port 9 of the receiver tank 5 in a wound state. ing. The hose hanger 50 is composed of, for example, a pair of frame-shaped members in which rod-shaped members are joined by welding or the like. The hanger hanger 50 is, for example, bent into an L shape and has a hanger body 50a whose front end is connected to the tailgate 5c, a front member 50b erected on the front side of the hanger body 50a, and one end connected to the tailgate 5c. The other end is provided with a support member 50c coupled to the hanger body 50a. The hanger body 50a has a horizontal portion 501a and a vertical portion 502a. The support member 50c is attached between the tailgate 5c and the horizontal portion 501a of the hanger body 50a so as to be tilted backward and upward.

As shown in FIG. 1C, the hinge pin 5b of the tailgate 5c is provided with a lubrication pipe 51 for supplying lubricating oil. As shown in FIG. 1B, the refueling pipe 51 includes a tube 51a having a hollow inside, a discharge nipple 51b provided at one end, and a grease nipple 51c provided at the other end. The other end of the tube 51a is connected to the grease nipple 51c via the relay connector 51d and the relay block 51e. As shown enlarged in FIG. 1C, the discharge nipple 51b on one end side is connected to the hinge pin 5b, and lubricating oil such as grease passes through the lubrication route inside the hinge pin 5b to the sliding portion of the hinge pin 5b (not shown). ) Is refueled, and the opening and closing operation of the tailgate 5c is smoothly performed. As shown in FIG. 1A, the intermediate portion of the tube 51a is fixed by a clip 53 provided in the vicinity of the joint portion with the tailgate 5c at the base of the hanger body 50a (the base end portion of the horizontal portion 501a), and the tailgate 5c is fixed. It is designed so that it does not shift when opening and closing. More specifically, the clip 53 is provided on the tailgate 5c side of the front member 50b erected at the base end portion of the horizontal portion 501a of the hanger main body 50a. The clip 53 prevents the tube 51a from interfering with the hooking portion R (see FIG. 1A) of the suction hose 52 formed in a U shape by the hanger main body 50a and the front member 50b. Further, as shown in an enlarged manner in FIG. 1D, the relay block 51e on the grease nipple 51c side is fixed to the vicinity of the joint portion of the support member 50c with the tailgate 5c at the base by welding or the like. As a result, the grease nipple 51c is fixed to the upper and lower center portions of the tailgate 5c below the horizontal portion 501a of the hanger main body 50a. This position is the inner region of the annular suction hose 52 when the upper end of the suction hose 52 loosely wound in an annular shape is hung on the hooking portion R of the hose hanger 50, so that the suction hose 52 is wound around the hooking portion R. The suction hose 52 and the grease nipple 51c are prevented from interfering with each other.

With this configuration, the other end of the refueling pipe 51 connected to the hinge pin 5b at which one end is at a high position is lowered to the base of the hose hanger 50, and the refueling work can be performed within the reach of the worker. Further, the refueling work can be performed without being disturbed by the suction hose 52 wound around the hooking portion R of the hose hose 50.

Further, since the other end of the refueling pipe 51 is connected to the relay block 51e fixed to the base of the hose hanger 50, it is not necessary to weld the relay block 51e to the tailgate 5c side having a relatively thin wall thickness. Further, since the other end is securely fixed to the base of the hose hanger 50, refueling work can be easily performed.

Further, since the tube 51a does not interfere with the hooking portion R of the suction hose 52 by the clip 53, the tube 51a is sandwiched between the hose hose 50 and the suction hose 52 when the suction hose 52 is hung on the hose hose 50. It is possible to prevent the tube 51a from being blocked.

Therefore, according to the suction device 1 and the suction wheel 2 according to the present embodiment, the discharge nipple 51b at one end (upper end) of the refueling pipe 51 is arranged near the hinge pin 5b, and the grease nipple 51c at the other end (lower end) is attached to the hose hanger 50. Since it is provided at the base of the hose, refueling can be easily performed even when the suction hose 52 is hung on the hose hanger 50.

(Other embodiments)
The present invention may have the following configurations with respect to the above embodiment.

That is, in the above embodiment, the case where the suction device 1 is mounted on the suction wheel 2 has been described, but the present invention can be applied to the suction device 1 which is not mounted on the suction wheel 2. In this case, the suction device is driven by an independent drive source that is different from the engine of the suction vehicle. For example, a container in which the suction device 1 is housed can be mounted on a vehicle, transported to a work site, and the container can be loaded and unloaded at a predetermined place for installation.

It should be noted that the above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications and uses.

1 Suction device
2 Suction car
3 chassis
4 subframe
5 Receiver tank
5a Tank body
5b hinge pin
5c tailgate
5d open / close cylinder
5e Rear end opening
7 Receiver tank pressurizing / depressurizing piping
8 suction port
9 Outlet
10 Tilt axis
11 Tilt cylinder
13 Driver's cab
14 drive shaft
15 Operation panel
25 blower
50 hose hanger
50a hanger body
501a horizontal part
502a vertical part
50b Front member
50c support member
51 Refueling piping
51a tube
51b Discharge nipple
51c grease nipple
51d relay connector
51e Relay block
52 Suction hose
53 clips
R hook

Claims (3)

A receiver tank that collects the objects to be collected, and
A tailgate that rotates around the hinge pin provided on the upper end side of the receiver tank to open and close the rear end opening, and
A hose hanger provided on the tailgate and supported by winding a hose connected to the receiver tank, and a hose hanger.
The above hinge pin is equipped with a lubrication pipe that lubricates the lubricating oil.
One end of the refueling pipe is connected to the hinge pin.
The above hose hanger
A hanger body having a horizontal portion extending in the front-rear direction of the vehicle and a vertical portion erected on the rear side of the horizontal portion and connected to the tailgate.
A front member erected on the front side of the horizontal portion of the hanger body is provided.
The suction hose is configured to be wound around the hooking portion formed in a U shape by the horizontal portion, the vertical portion, and the front member.
The intermediate portion of the refueling pipe is fixed to a clip fixed to the front side of the vehicle with respect to the front member of the hanger body.
The other end of the refueling pipe is located below the clip and is provided at an exposed position when viewed from the rear in a state where the hose is wound around the hose hanger. Suction device. In the suction device according to claim 1,
A suction device characterized in that the other end of the refueling pipe is connected to a block fixed to the base of the hose hanger. A suction vehicle, characterized in that the suction device according to claim 1 or 2 is mounted on a vehicle.

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