JP3068313U - Dumper capable of carrying liquid - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To make it possible to transport liquid such as water by using a dump truck bed. SOLUTION: The loading platform 1 of the dump truck has lids 3a, 3b provided at upper openings, and the lid shafts 4a, 4b are rotated by a cylinder device 8 or the like to open the lids 3a, 3b, and water or the like is opened from above. , And the lids 3a and 3b are closed and transported. The joints of the members constituting the carrier 1 are water-tight by packing. When taking out a liquid such as water, the liquid is pumped out from above by a pump or the like, or the bed 1 is inclined to be discharged from the lower end of the rear plate 1c. It can be used as an ordinary dump truck when there is no need to transport liquids such as water.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a vehicle for loading and transporting liquid, and more particularly, to a dump truck configured to use a carrier for liquid transport.

[0002]

[Prior art]

 Civil engineering and construction related works often require large amounts of water depending on the type of work. For such a case, a carrier for exclusive use of liquid has conventionally been put to practical use, and in particular, there is also a vehicle equipped with a tank for liquid, for example, a water tank.

[0003]

[Problems to be solved by the invention]

 Vehicles loaded with such water tanks are used exclusively for transporting liquids such as water, and cannot be used for other purposes. In addition, the upper opening of the water tank is small, which is inconvenient for cleaning and inspecting the inside. On the other hand, dump trucks are often associated with construction sites in some way, making them easy to use. Therefore, the present invention aims to improve the convenience of construction sites related to civil engineering and construction by using dump trucks instead of tanks.

[0004]

[Means for Solving the Problems]

 According to the present invention, the above-mentioned problem is solved by covering the upper opening of the loading platform into two parts on the left and right sides, respectively, and covering each of the lids that open and close by rotating operation, and a front plate, a rear plate, A packing having a water-tight structure at a joint of each plate such as a side plate and a bottom plate, a joint between the lid plate and the upper end of the cargo bed, and a joint between the left and right lids, and a chassis exposed in front of the cargo bed. The opening / closing operation of the lid constituted by the cylinder installed above, a rack provided in a lot of the cylinder, a pinion that meshes and rotates with the rack, and a lid shaft that is coupled to a shaft of the pinion via a universal joint is driven. The problem is solved by using a dump truck capable of carrying liquids, which includes a driving means.

[0005]

[Embodiment of the invention]

 Originally, dump trucks are capable of loading sand, soil, etc., so they can be made watertight by placing packing in important places. By providing a lid that opens and closes on the left and right, loading and transportation of water and the like become possible. In addition, the lid can be rotated and opened and closed using a driving device such as a cylinder, so that the lid can be easily operated.

[0006]

【Example】

 The drawings are all for explaining the embodiments of the present invention. FIG. 1 is a side view of a liquid-carrying dump truck according to the present invention, in which 1 is a carrier, which comprises a front plate 1a, left and right side plates 1b, a rear plate 1c, and a bottom plate 1d. Similarly to the above, the rear plate 1c has a structure in which the lower edge is opened and the load can be discharged by tilting the carrier by removing the fastener 7a as the locking means.

Reference numeral 2 denotes a chassis which supports the loading platform 1 and supports the loading platform 1 at a rear portion thereof by shafts 2a provided on the left and right sides of the rear portion, respectively. A known device for tilting the bed is also loaded, but is not shown.

FIG. 2 is a top view of the loading platform 1. A lid 3 for closing the open portion is provided above the normally open cargo bed 1. The lid 3 is divided into two parts, left and right, in the traveling direction. The lid 3 is composed of a (left) lid 3a and a (right) lid 3b, each of which is rotatably supported by its outer edge. When closed, the two form a central overlap.

Reference numerals 4a and 4b denote lid shafts, which are disposed over the entire length of the side surface of the carrier 1. The lid shafts 4a and 4b rotate so that the lids 3a and 3b rotate. I do. Reference numeral 5 denotes a plurality of fixtures, which are mounted so that one end of the plate material is wound around predetermined portions of the lid shafts 4a and 4b, fixed by welding or the like, and the other end is positioned at a predetermined portion near the outer left and right edges of the lid. Secure with studs. Therefore, the lid 3 is rotated by the rotation of the lid shafts 4a and 4b. In this embodiment, as shown in FIG. In FIG. 3, the mounting state of the fixture 5 is enlarged and shown as a partial cross-sectional view.

Reference numeral 6 denotes a bearing. One end of the plate material is formed so that the lid shafts 4a and 4b can be rolled in so as to obtain a rotatable fitting state, and the other end is attached to a predetermined portion on the outside of the side plate 1b of the loading platform 1 with a stud or the like. Fix it. Accordingly, the lid shafts 4a and 4b can be rotated using the bearing 6 as a bearing. In the present embodiment, the bearings 6 are provided at two places on the left and right, as shown in FIG. In FIG. 4, the mounting state of the bearing 6 is enlarged and shown as a partial sectional view.

Reference numeral 7 denotes a fastener for locking the lid 3 in a closed state, which is a known structure, and a detailed description thereof will be omitted, but a structure in which the locked and unlocked states can be easily obtained by manual lever operation. It is. As shown in FIG. 2, in this embodiment, a total of six locations are provided. In FIG. 1, reference numeral 7a denotes a fastener for locking the rear plate 1c of the loading platform 1 from the open state to the closed state, and is provided at two places on the left and right.

Reference numeral 8 denotes a cylinder device, which is a part of a drive source for rotating the lid shafts 4a and 4b. In this embodiment, a hydraulic cylinder is used. Reference numeral 9 denotes a cylinder rod driven by the cylinder device to perform a piston movement, 10 denotes a rack fixed thereto, and 11 denotes a pinion that meshes with the rack. Reference numeral 12 denotes a universal joint for connecting the axis of the pinion 11 and the lid shafts 4a and 4b, and corrects the center deviation between the axis on the pinion 11 side and the lid shafts 4a and 4b.

The above-described series of the cylinder device 8, the cylinder rod 9, the rack 10, the pinion 11, and the universal joint 12 are provided on the left and right, respectively, and form a pair. Therefore, the pair of pinions 11 are attached to the lid shafts 4a and 4b via the universal joint 12, respectively.

The dump truck capable of transporting liquid according to the present invention having such a configuration is generally used for loading and transporting gravel or the like as a dump truck. When it is necessary to carry liquid such as water, the cylinder device 8 is operated and the cylinder rod 9 is moved to move the rack 10. The rack 10 rotates the pinion 11 to rotate the cover shafts 4a and 4b via the universal joint 12 in predetermined directions opposite to each other.

FIG. 5 schematically shows the state at the start of rotation. The left and right lids 3a, 3b are in a horizontal state, and both are closed in an overlapping manner at the center. However, the lid 3a rotates in the direction of arrow A with the rotation of the lid shaft 4a in the counterclockwise direction. Start moving. On the other hand, the lid 3b starts rotating in the direction of arrow B with the rotation of the lid shaft 4b in the clockwise direction.

When the rotation continues and the state shown in FIG. 6 is reached, that is, the state where both lids 3a and 3b are rotated by about 270 degrees, the cylinder device which is the driving source is automatically driven by a mechanism (not shown). 8, the lid shafts 4a, 4b also stop, and the lids 3a, 3b maintain this position. In this state, the liquid can be injected in the direction of arrow C from above. The state in which this liquid is injected is shown in FIG. 8 as an explanatory diagram.

When the injection is completed, the two lids 3a and 3b rotate by the reverse operation to return to the closed state in FIG. In this closed state, as illustrated in FIG. 7, the overlapping portion of the left and right lids 3a and 3b is in the form of a crank in this embodiment, but the crank-shaped portion has a similar cross section. Since the packing 13 having elasticity is provided, the watertightness is sufficiently maintained, and there is no hindrance to running of the vehicle.

Also, at the joint between the lids 3a, 3b and the side plate 1b of the carrier 1, as shown in FIG. 3 or FIG. 4, the packing 14 projects upward on the inner surface of the side plate 1b. Installed. In addition, although not shown in the drawing, packing is installed between all the components that make up the cargo bed 1 so that the watertightness is sufficiently maintained, so that there is no hindrance to the running of the vehicle.

When the transport is completed and the loading liquid is needed, the lids 3a and 3b are opened again and pumped from above by a pump or the like. Alternatively, depending on the purpose, it is also possible to incline the loading platform 1 and open the rear plate 1c at the rear to discharge gravel and the like. FIG. 9 shows the discharge state as an explanatory diagram. Although not shown, a packing material similar to the above is disposed between the rear plate 1c, the bottom plate 1d, and the side plate 1b in order to take such a discharging method.

In FIGS. 1 and 2, reference numerals 15a and 15b denote coil springs incorporated in the cover shafts 4a and 4b. One end of the spring 15 a is fixed to the side plate 1 b of the carrier 1, and the other end of the spring 15 a contacts the upper surface of the lid 3. Further, one end of the spring 15b is fixed to the side plate 1b of the loading platform 1, and the other end is brought into contact with the lower surface of the fixture 5. Both springs are incorporated in two places on the lid shafts 4a and 4b, respectively. When the lid 3 opens, the spring 15a is forced to rotate by its own weight and cannot be applied to the drive unit. This is prevented. Similarly, the spring 15b prevents the drive device when the lid 3 is closed from being overly pressed.

In the above embodiment, the cylinder device is used as the drive source for rotating the lid. However, other drive sources, for example, a combination of a motor and a gear, and the like, cause no problem.

[0022]

[Effect of the invention]

 As described above, according to the present invention, it is possible to load a liquid such as water using a normal dump truck bed, and a lid is provided above the cargo bed. And the like. In addition, since the lid is opened and closed automatically by providing a drive source, it is easy to use.

Further, when the lid is opened, the lid can be opened widely, so that inspection and cleaning of the inside of the liquid tank are easy, and the liquid tank can be always kept clean.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a partial top view of one embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of one embodiment of the present invention.

FIG. 4 is a partial cross-sectional view of one embodiment of the present invention.

FIG. 5 is a rear view of the loading platform according to the embodiment of the present invention;

FIG. 6 is a rear view of the loading portion according to the embodiment of the present invention;

FIG. 7 is a cross-sectional view of a joint portion of the lid according to the embodiment of the present invention.

FIG. 8 is an explanatory view of the liquid volume loading of the present invention.

FIG. 9 is an explanatory view of the present invention during liquid discharge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Loading platform 2 Chassis 3 Lid 3a (Left) Lid 3b (Right) Lid 4a Lid shaft 4b Lid shaft 5 Fixture 6 Bearing 7 Tightening tool 8 Cylinder device 9 Cylinder rod 10 Rack 11 Pinion 13 Packing 14 Packing 15a Spring 15b Spring

Claims (1)

[Utility model registration claims] 1. A lid body which covers an upper opening portion of a loading platform by dividing the upper opening portion into two right and left sides and respectively opens and closes by rotating operation, and each of a front plate, a rear plate, a side plate, a bottom plate and the like constituting the loading platform. A joint having a plate, a joint between the lid plate and the upper end of the loading platform, and a packing having a junction between the left and right lid plates in a watertight structure, and a cylinder installed on a chassis exposed in front of the loading platform, A rack provided in the cylinder lot, a pinion that engages and rotates with the rack, and a drive unit for opening and closing the lid, which is configured by a lid shaft connected to a shaft of the pinion via a universal joint. Characteristic dump truck capable of carrying liquid.