JPH0533758A - Side entrance opening/closing device for gate housing of concrete pump - Google Patents

Abstract

PURPOSE:To enlarge the opening degree of a gate housing formed in one body with a hopper, attain miniaturization and light weight trend of the device and cost down, and further quickly perform discharging operation of remaining concrete and exchanging operation of consumable parts in a easy posture. CONSTITUTION:An opening/closing lock device 11 is unlocked by operating the switch of a control board, next, an opening/closing hydraulic cylinder 4 is operated, so as to open a hopper 8, a gate housing 14 in one body with this, a concrete transport pipe 16, and the like outside in the horizontal direction centering around a supporting shaft 6 (tubular shaft) in the nearly vertical direction, and remaining concrete in the hopper 8 or the gate housing 14 is discharged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lateral opening / closing device for a gate housing of a concrete pump.

[0002]

2. Description of the Related Art A conventional gate housing opening / closing device for a concrete pump will be described with reference to FIGS.
Is a pair of concrete pistons, 2 and 2 are a pair of concrete cylinders having these concrete pistons 1, 3B and 3B are tubular bearings, 4B is an opening / closing hydraulic cylinder,
5B is an arm, 6B is a horizontal tubular shaft having the arm 5B, 7B is a concrete transport pipe, 8 is a hopper, 9 is an S-shaped rocking tube drive cylinder, 10 is an arm, 11 is an opening / closing lock device, 12 is Kotatsu receiver, 13 is an S-shaped rocking tube,
Reference numeral 14 is a gate housing integrated with the hopper 8, 15 is a rocking tube support casing, and 16B and 17B are concrete transportation tubes.

In the gate housing opening / closing device for the concrete pump shown in FIGS. 3 and 4, a control panel (not shown) is used.
By the switch operation of, the opening and closing lock device 11 is released,
Next, the opening / closing hydraulic cylinder 4B is operated to use the horizontal tubular shaft 6B as the swing center axis, the hopper 8, and the concrete transport pipe 16B and the gate housing 14 which are integrated with the hopper 8.
And lift them upwards, inside the hopper 8 and the gate housing 1
Residual concrete that remains inside 4 is discharged.

[0004]

In the conventional gate housing opening / closing device for a concrete pump shown in FIGS. 3 and 4, the hopper 8 and the gate housing 14 and the like integrated with the hopper 8 are opened and closed vertically, but Since the hopper 8 and the gate housing 14 interfere with a nearby structure or the like when opened to be lifted, the degree of opening and closing is limited.

Further, since the hopper 8 and the gate housing 14 and the like integrated with the hopper 8 are opened and closed in the vertical direction, the total weight of all the devices (the hopper, the transport pipe and the like) integrated with the gate housing 14 is directly applied to the opening / closing hydraulic cylinder 4B. It takes. for that reason,
It is necessary to use a large open / close hydraulic cylinder 4B, and a safety device for holding the open state when removing residual concrete or replacing consumable parts is required, which increases the size of the device. The weight of the entire device increases. High cost.

Further, when the residual concrete is discharged and the consumable parts are replaced, the hopper 8 and the gate housing 14 are placed above the worker's head, so that the worker is forced to take an uncomfortable working posture and feels a sense of pressure. It should be noted that these works are performed every time the concrete pouring work is completed at the construction site, and therefore it is desirable that the work is performed promptly in a comfortable posture.

The present invention has been proposed in view of the above problems, and an object thereof is to increase the degree of opening and closing of the gate housing integrated with the hopper. It is possible to reduce the size and weight of the device and reduce the cost. Another object is to provide a lateral opening / closing device for a gate housing of a concrete pump that can quickly perform a work of discharging residual concrete and a work of exchanging consumable parts in a comfortable posture.

[0008]

In order to achieve the above-mentioned object, a lateral opening and closing device for a gate housing of a concrete pump according to the present invention supports one end of a gate housing device including a hopper, a gate housing and the like in a substantially vertical direction. The concrete cylinder is pivotally supported via a shaft so that it can be opened and closed in the horizontal direction, and the opening of the gate housing can be connected to the opening of the concrete cylinder.

Further, in the lateral opening and closing device for the gate housing of the concrete pump of the present invention, the supporting shaft is hollow,
A concrete transportation pipe is penetrated inside.

[0010]

The side opening / closing device for the gate housing of the concrete pump of the present invention is constructed as described above, and the opening / closing lock device is released by the switch operation of the control panel, and then the opening / closing hydraulic cylinder is actuated to move in a substantially vertical direction. The hollow spindle is used as the swinging central axis to open the hopper and the gate housing and the like integrated with the hopper horizontally outward, and the residual concrete remaining in the hopper and the gate housing is discharged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a lateral opening / closing device for a gate housing of a concrete pump according to the present invention will be described with reference to an embodiment shown in FIGS. 1 and 2. 1, 1 are a pair of concrete pistons, 2 and 2 are these concrete pistons. A pair of concrete cylinders having 1, 2a, 2a are axes of these concrete cylinders 2, 19 is a frame attached to the opening of each concrete cylinder 2, 3 and 3 are tubular bearings attached to the frame 19, 4 is an opening and closing Hydraulic cylinder,
5 is an arm, and 6 is a tubular shaft (spindle) having the arm 5
The tubular shaft (support shaft) 6 is rotatably supported by the frame 19 via the tubular bearings 3. Further, 30 is a horizontal plane connecting the axes 2a, 2a of the concrete cylinder 2, and the axis of the tubular shaft (support shaft) 6 is substantially orthogonal to the horizontal plane 30.

7 is a concrete transportation pipe, 8 is a hopper, and 9 is a hopper.
Is an S-shaped rocking tube drive cylinder, 10 is an arm, 11 is an opening / closing lock device, 12 is a cotter receiver, 13 is an S-shaped rocking tube, and 14 is a gate housing integrated with the above-mentioned hopper 8, 1
Reference numeral 5 is a rocking pipe support casing, 16 and 17 are transportation pipes, and one end of a gate housing device including a hopper 8, a gate housing 14, etc. is horizontally oriented to the concrete cylinder 1 via a tubular shaft (support shaft) 6 in a substantially vertical direction. The opening of the gate housing 14 is configured to be connectable to the openings of the concrete cylinders 2 and 2 so as to be opened and closed.
Further, a concrete transport pipe 17 penetrates the tubular shaft (support shaft) 6.

Next, the operation of the lateral opening and closing device for the gate housing of the concrete pump shown in FIGS. 1 and 2 will be described in detail. The opening / closing lock device 11 is released by a switch operation of a control panel (not shown), then the opening / closing hydraulic cylinder 4 is operated, and the hopper 8 and the concrete integrated with the hopper 8 using the tubular shaft 6 in the substantially vertical direction as the swing center shaft. The transport pipe 16 and the gate housing 14 are opened outward in the horizontal direction, and residual concrete remaining in the hopper 8 and the gate housing 14 is discharged.

[0014]

The gate housing lateral opening / closing device of the concrete pump of the present invention is configured as described above, and the switch lock device is released by the switch operation of the control panel, and then the open / close hydraulic cylinder is operated, The hollow hollow shaft in the vertical direction is used as the swing center axis to open the hopper and the gate housing, etc., which are integrated with the hopper horizontally outward and discharge the residual concrete remaining in the hopper and the gate housing. The degree of opening and closing of the integrated gate housing can be increased.

Further, since it is not necessary to directly support the total weight of all devices (hoppers, transportation pipes, etc.) integrated in the gate housing with the opening / closing hydraulic cylinder, the device can be made compact and lightweight.
A cost reduction can be achieved at the same time. In addition, when the residual concrete is discharged and the consumable parts are replaced, the hopper and the gate housing move horizontally outward and do not come above the worker's head. It has the effect of allowing the user to quickly perform the work of discharging residual concrete and the work of exchanging consumable parts in a comfortable posture without feeling.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a closed state of an embodiment of a lateral opening and closing device for a gate housing of a concrete pump according to the present invention.

FIG. 2 is a partially cutaway perspective view showing an open state of the gate housing lateral opening / closing device.

FIG. 3 is a partially cutaway perspective view showing a closed state of a conventional gate housing opening / closing device.

FIG. 4 is a partially cutaway perspective view showing an open state of the gate housing opening / closing device.

[Explanation of symbols]

1 concrete piston 2 concrete cylinder 6 support shaft (tubular shaft) 8 Hotspa 14 gate housing

Claims (2)

[Claims] 1. A gate housing device including a hopper, a gate housing, etc. is pivotally supported at one end thereof in a horizontal direction on a concrete cylinder through a support shaft in a substantially vertical direction so that the opening portion of the gate housing is opened. A lateral opening / closing device for a gate housing of a concrete pump, which is configured to be connectable to the opening of the concrete cylinder. 2. The concrete support pipe is penetrated through the hollow support shaft.
Gate opening side opening / closing device for the concrete pump described.