JPS6027343B2 - 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.

In general, in a device for transferring a fluid such as ready-mixed concrete that is mounted on the steel of a car or the like, a boom B is connected to a support column 01 on the car body so that it can move up and down freely, as shown in Figures 1 and 2. A transfer pipe 09 connected to the pump Pu is installed along B, and after extending the boom B, a movable casting hose 012 is connected to the tip of the transfer pipe 09 via a joint 010, and the pump Fluids such as fresh concrete from Pu are transferred to the pouring location, and in this case, the flexible pouring hose 012 should have good operability at its tip. ' is supported. By the way, when the transfer work of fresh concrete is finished and the boom is folded to the storage position to transport the transfer device to another location, the hose guide Gh' at the tip of the boom B is
As shown in Fig. 1, the hose guide Gh' is removably attached to the tip of the boom when it collides with the support column 01 etc. and damages or breaks it. , the hose guide Gh' was to be removed.

However, this method not only requires a ladder for attaching and detaching the hose guide, but also causes problems such as the need to separately prepare a storage location for the hose guide. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hose guide device that is attached to the tip of a boom and can be extended to a predetermined length and shape when in use, and can be stored very compactly at the tip of the boom when not in use. This is the purpose.

Hereinafter, an embodiment in which the present invention is further implemented as a concrete pump will be described with reference to FIGS. The main boom 3 is supported 5 at the upper end of the support column 1 so that it can be raised and lowered freely, and the bending boom 4 is pivoted 63 at the tip of the main boom 3 so that it can be raised and lowered freely. and the refracting boom 4 constitute a boom B. A telescoping cylinder 7 is connected between the main boom 3 and the support column 1, and the main boom 3 is lifted up by the telescoping operation of the telescoping cylinder 7. A telescoping cylinder 8 is also 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 pump are mounted on the rear of the vehicle body frame F, and the transfer pipe 9, such as a steel pipe, which is transported to the discharge port of the pump Pu, is bent and passes through the shaft support 5, and then passes through the shaft support 5. The main boom 3 is supported along one side, and the transfer pipe 9 thereof is bent and passed through the pivot 6, and then supported along the other side of the bending boom 4.

The tip of the transfer pipe 9 is connected to a joint provided at the tip of the bending boom 4. A guide mounting member 11 is fixed to the tip of the bending boom 4, and this mounting member 11 includes:
A flexible cast hose 12 such as a rubber hose is supported through the hose,
The base end of this casting hose 12 is connected to the joint 1,
The transfer pipe 9 is threaded through the pipe.

A hose guide Gh that guides and supports the flexible casting hose 12 is attached to the guide attachment member 11 .

The hose guide Gh is composed of a first bending link L, a second bending link L2, and a plurality of connecting pins P.
The first bending link L connects the ends of a plurality of straight first link members 13 having a predetermined length in a rotatable manner 14, and connects it to the tip of the most advanced link member 13. It is constructed by rotatably connecting 16 end links 15 shorter than the above. The base end of the first bending link L is connected to the guide mounting member 1.
1 (front side in FIG. 4) is slidably engaged with an L-shaped locking hole 17 bored in the member 11. The second bending link L2 sequentially rotatably connects the ends of a plurality of straight second link members 18 having a predetermined length, and connects the ends of the second link member 18 at the most distal end. It is constructed by rotatably connecting a shorter end link 20 to the end. The base end of the second bending link L is located at the upper part of the other side surface (the opposite side in FIG. 4) of the guide mounting member 11.
1 is pivotally connected 21. The first and second refractive links L
, , corresponding first and second link villages 13 and 18
are crossed slightly below the center of these link members 13 and 18, and are connected to each other by the connecting pin P at the crossing portion so as to be relatively rotatable.

Tip links 15 of the first and second bending links L, L2,
The tips of 20 are also connected to each other by a connecting pin P. The connecting pin P is formed in such a length that the first and second bending links L and L can be kept at a predetermined distance and the casting hose 12 can be accommodated between them, and the guide roller 22 is rotatable. The casting hose 12 is supported on it. When the base end of the first bending link L is engaged with the upper end of the L-shaped locking hole 17 as shown by the solid line in FIG. A plurality of connecting pins P extending out to form an arc shape and connecting them support the casting hose 12 in a curved shape. Furthermore, if the first and second bending links L, , etc. are folded as shown in the chain lines in FIG.
The hose guide Gh is stored and held compactly in the folded position. When pouring fresh concrete in the hopper, raise the main boom 3 appropriately, extend the bending boom 4, connect the pouring hose 12 to the tip of the transfer pipe 9 via the joint 10, and Place the casting hose 12 on the hose guide G.
Guide by h.

Next, when the pump Pu is driven, the fresh concrete in the hopper is transferred from the transfer pipe 9 through the pouring hose 12 to an appropriate pouring location. In this case, the hose guide device Ch has flexibility in the left and right direction of the first and second link members 13 and 18, the connecting portion of each connecting pin P, and the bending portion of the first and second bending links L, L. Since it is possible to turn the casting hose 12 slightly to the left and right, the operability of the casting hose 12 is good. In addition, when transporting the concrete pump truck to another location after finishing the transfer of fresh concrete, after removing the pouring hose 12, fold the hose guide Gh) and
, is locked in the lower part of the locking hole 17, the hose guide Gh is locked in the folded position and stored compactly.

Therefore, even when the bending boom 4 is folded into the retracted position as shown in FIG. 3, the hose guide Gh will not collide with the support column 1. 7 and 8 show a modification of the invention, in which the hose guide oh,
Consisting of a first bending link L', a second bending link L2' and a plurality of connecting pins 2P, the first bending link L,
′ is constructed by rotatably connecting two link members 13, 132 slightly below the center with a connecting pin P, so that the ends of a plurality of cross links can be rotated in sequence. 14, 142, and furthermore, a distal end link 15, .
152, and the tips of the links 15., 152 are connected to each other, and the second bending link L'
is a structure in which the ends of a plurality of cross links are sequentially connected to each other by connecting the two second link members 18, 182 slightly below the center using the common connecting pin P. 19,,192, and further distal links 20,,2 at the distal ends of the first link members 18,,182 at the most distal ends.
It is constructed by connecting the tips of 02 to each other.

The plurality of connecting pins P have a predetermined length and maintain a predetermined interval between the first and second bending links L' and L', and a roller 22 is placed on the connecting pin P. The pouring hose 20 is supported through it. The first and second refractive links L,',
The upper ends of the bases of L2' are attached to the guide attachment members 11, respectively, and the lower ends of the bases are attached to the guide attachment members 1.
1 and the hole 17 in a movable manner.

As shown in the solid line in Fig. 7, the first and second refraction links L', L
When the lower base end of 2' is engaged with the upper end of the L-shaped locking hole 17, the first and second bending links L,',L' are extended in a pandagraph shape and have an arc shape, Multiple connecting pins P
, supports the casting hose 12 in a curved shape. In addition, if the first and second bending links L, ′, }′ are folded as shown in the chain lines in FIG. Hose guide Gh, folded)
It is stored and maintained compactly in the calendar. In the embodiment described above, each cross link of the first and second bending links L' and L2' may be connected to the connecting pin P by another pin.

As described above, according to the present invention, the guide mounting member is provided at the tip of the boom that supports the transfer pipe, and the guide mounting member is provided with the telescopic first bending link, the second bending link, and the connecting pin that connects them. A retractable hose guide is installed, and when the hose guide is extended,
The hose can be extended long to guide the casting hose, and when stored, it can be contracted and stored compactly, so the boom can be stored while the hose guide is attached to the tip of the boom. The work of attaching and detaching the hose guide can be omitted, and the overall work efficiency can be greatly improved.

In addition, when the hose guide is extended, it can be
As mentioned above, since it is possible to bend the hose in the left and right directions, the operability of the casting hose is also very good.

[Brief explanation of the drawing]

Figure 1 is a side view of a concrete pump truck equipped with a conventional hose guide device, Figure 2 is a side view of a conventional hose guide device, and Figures 3 to 6 are a concrete pump truck equipped with a hose guide device of the present invention. 4 is a side view of the hose guide device of the present invention, FIG. 5 is a sectional view taken along line W-N in FIG. 4,
Figure 6 is a perspective view of a part of the hose guide, Figures 7 and 8 show other embodiments of the present invention, Figure 7 is a side view of the hose guide device, and Figure 8 is a side view of the hose guide device. It is a sectional view along a skin line. B...Hoom, P...Connection pin, L.・・・
...First refraction link, L...Second refraction link, 9.
...Transfer piping, 11...Guide mounting member, 1
3...First link member, 18...Second link member. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] 1. A guide attachment member is provided at the tip of the boom that supports the transfer pipe, and the base end of a first bending link, which is formed by connecting a number of link members sequentially in a bendable manner, is connected to one side of the guide attachment member. Further, the base end of a second bending link formed by sequentially connecting a number of link members in a bendable manner is connected to the other side of the guide attachment member, and the first and second bending links are connected to a plurality of connecting pins. A hose guide device for a fluid transfer device, the hose guide device being rotatably connected to each other and supporting a casting hose connected to the transfer pipe on the connecting pins.