JPS5953984B2 - Hose guide device in fluid transfer equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hose guide device in a device for transferring a fluid such as fresh concrete.

Generally, in a device for transferring a fluid such as ready-mixed concrete that is mounted on a vehicle such as an automobile, a boom B is connected to a support column 1 on the vehicle body so as to be able to rise and fall freely, as shown in Fig. 1.
A rigid hose guide G is provided with a transfer pipe 9 connected to the pump Pu, and a flexible casting hose 18 connected to the tip of the transfer pipe 9 is attached to the tip of the boom B.
In this case, the flexible pouring hose 18 has a flexible pouring hose 18 that improves operability at its tip. It is designed to be supported by a hose guide G.

By the way, when the transferring work of fresh concrete is finished and the transferring device is folded into the boom storage position to be transported to another location, the hose guide G at the tip of the boom B collides with the support column 1, etc. as shown in Fig. 1. Conventionally, the hose guide G was detachably attached to the tip of the boom, and when the boom B was stored, the hose guide G was removed.

However, in this case, there are problems such as not only the troublesome operation of attaching and detaching the hose guide but also the need to prepare a separate storage location for the hose guide.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a hose guide device for a fluid transfer device with a simple configuration, which eliminates the above-mentioned conventional problems and can greatly improve the operability of a cast hose. It is.

Hereinafter, referring to FIGS. 3 to 5, an example in which the present invention is applied to a concrete pump army will be explained.
A support column 1 is mounted on the upper front part via a swivel table 2 so as to be able to rotate around a vertical axis, and a main boom 3 is pivotably supported at the upper end of this support column 1 so as to be able to move up and down. At the tip,
A bending boom 4 is pivotally supported 6 so as to be able to rise and fall freely, and a boom B is constituted by the main boom 3 and the bending boom 4.

A telescoping cylinder 7 is connected between the main boom 3 and the support column 1, and the main boom 3 is raised or raised by the telescoping operation of the telescoping cylinder 7.

Further, a telescoping cylinder 8 is connected between the main boom 3 and the bending boom 4, and the bending boom 4 is raised and rotated by the telescoping operation of the telescoping cylinder 8.

A pump Pu and a hopper H are mounted on the rear part of the vehicle body frame F, and are communicated with a discharge port of the pump Pu.

A transfer pipe 9 such as an iron pipe is bent and passed through the pivot support 5 portion, and then installed along one side of the main boom 3, and furthermore, after the transfer pipe 9 is bent and passed through the pivot support 6 portion, It is provided along the other side of the bending boom 4.

The tip of the transfer pipe 9 is connected to a joint 10 provided at the tip of the bending boom 4.

A guide mounting member 12 is pivotally supported at the tip of the bending boom 4 via a vertical pivot pin 11.
2 can be rotated around the pivot pin 10 and placed on one side of the bending boom 4, as shown in solid lines in FIG. 5, or on the other side of the bending boom 4, as shown in chain lines in FIG.

Fixed side bracket pieces 13 and 14 are fixed to both sides of the tip of the bending boom 4 at shifted positions back and forth, while movable side bracket pieces 13 and 14 are fixed to the guide mounting member 12, respectively, corresponding to the fixed side bracket pieces 13 and 14. 15 is fixed,
This movable bracket piece 15 is selectively overlapped with the fixed bracket pieces 13 and 14, and the insertion pin 16 is attached to them.
By inserting the guide attachment member 12, the guide attachment member 12 can be fixed along one side or the other side of the bending boom 4.

A proximal end of a flexible spiral guide 17 is fixed to the distal end of the guide attachment member 12 .

This spiral guide 17 is constructed by winding a metal wire in a spiral shape, and the pitch is large at the base and gradually becomes smaller toward the tip.

A flexible casting hose 18 such as a rubber hose has its base inserted through the spiral guide 17 and further through the guide attachment member 12, connected to the joint 10, and communicated with the transfer pipe 9. .

When pouring the ready-mixed concrete in the hopper H into an appropriate location using the pump 'Pu via the transfer piping 9 and the pouring hose 18, the main boom 3 is raised appropriately, the bending boom 4 is extended, and the pouring hose is 18 into the helical guide 17 and the guide attachment member 12 and connect the casting hose 18 through the joint 10.
Connect to.

Next, when the pump Pu is driven, the fresh concrete in the hopper H is transferred from the transfer pipe 9 through the placement hose 18 to an appropriate placement location.

In this case, since the spiral guide 17 is freely bent, the base of the casting hose 18 is freely bent back and forth, left and right, and the tip of the casting hose 18 can be easily guided to a desired position, resulting in good operability.

In addition, when transporting the concrete pump truck to another location after finishing the transfer of fresh concrete, after removing the pouring hose 18, move the bending boom 4 to the storage position as shown in FIG. 3 with the spiral guide 17 still attached. If the helical guide 17 is folded up, even if it hits the support column 1 etc., it will bend freely and will not be damaged or broken.

Also, when storing the bending boom 4, the guide mounting member 12 is
As shown by the chain line in the figure, the spiral guide 17 may be reversed so as to align with the bending boom 4. In this case, the spiral guide 17 is less likely to hit the support column, making it easier to store the spiral guide 17.

Incidentally, as in the above embodiment, the pitch of the helical guide 17 is increased at the base and gradually decreased toward the tip, thereby making the swinging operation of the casting hose 18 easier.

Further, as shown in FIG. 6, the diameter of the spiral guide 17 is increased at its base and gradually decreased toward its tip, thereby making the swinging operation of the casting hose 18 easier.

As described above, according to the present invention, since the spiral guide is provided at the tip of the boom that supports the transfer piping, the boom can be stored with the spiral guide attached, and the hose guide can be attached and detached like the conventional method. There is no need to perform any additional work, and the overall work efficiency can be greatly improved.

Furthermore, since the helical guide can be bent freely, the operability of swinging the casting hose is extremely improved, making the casting work easier.

Furthermore, since the helical guide does not have movable contact parts, there are no parts that wear out, and it has excellent durability.

[Brief explanation of the drawing]

Fig. 1 is a side view of a concrete pump truck equipped with a conventional hose guide device, Fig. 2 is a side view of a conventional bows guide device, and Fig. 3 is a side view of a concrete pump truck equipped with a bows guide device of the present invention. 4 is a side view of the hose guide device of the present invention, FIG. 5 is a plan view thereof, and FIG. 6 is a side view showing a modified example of the helical guide. B・・・・・・Boom, 9・Curve・Transfer piping, 12・Curve・
Guide mounting member, 17... Spiral guide, 18.
- Curved casting hose.

Claims (1)

[Scope of Claims] 1. In a fluid transfer device that transfers a fluid such as ready-mixed concrete through a transfer pipe installed along a boom and a placement hose connected to the transfer pipe, the tip of the boom Attach the proximal end of the flexible helical guide to
A hose guide device in a fluid transfer device, in which the installation hose is inserted through the helical guide. 2. The fluid transfer device according to claim 1, wherein a guide attachment member is rotatably supported at the tip of the boom, and the base end of the helical guide is attached to the guide attachment member. Hose guide device in fluid transfer equipment. 3. The fluid transfer device according to claim 1 or 2, wherein the helical guide has a large pinch at its base and gradually becomes smaller as it approaches the tip. Hose guide device in equipment. 4. The fluid transfer device according to claim 1, 2, or 3, wherein the spiral guide has a large diameter at its base and gradually becomes smaller in diameter toward the tip. Hose guide device in equipment.