JPH0540064Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a concrete bucket with a hopper that stores ready-mixed concrete (hereinafter referred to as "ready-mixed concrete"), lifts it up, transports it, and discharges it to a predetermined location. It's about Bucket.

[Conventional technology]

The following methods were used to transport ready-mixed concrete at construction sites such as buildings.

In other words, a lifting locking part is provided at one end of the horizontally long container body, a ready-mixed concrete input port is provided on the upper surface of that end, and the other end of the container body is connected to a rotatable pouring chute via an on-off valve. This is a container for transporting ready-mixed concrete, which is equipped with a hopper, and at the end of which protrudes outward in a sled-like manner to protect the hopper and to guide the raising of the container body. Publication No. 11955 (Sho 62-11955).

When this container is placed horizontally, ready-mixed concrete is poured into the container through its input port, and the container is placed in a hanging ring that connects a wire rope connected to a lifting locking part.
It is used to lock the crane's hook and lift it up, and when it is lifted, it is gradually erected while being guided by the sled-shaped internal protective legs that form the lower part. Furthermore, the container is lifted up and transported in a hanging state, and at the pouring position, the open/close valve is operated while the container body is suspended, and ready-mixed concrete is discharged from the chute.

[The problem that the idea attempts to solve]

However, according to the conventional container for transporting ready-mixed concrete,
When the container is stood up or placed on its side in a predetermined position, the lower part of the container has a sled-shaped protective leg inside the upright position, which swings from side to side, making it unstable and dangerous. In addition, if a situation were encountered in which the on-off valve did not close due to a malfunction in the electrical system, etc. during raw concrete discharge, there was a risk that the valve would remain open and become inoperable, and the raw concrete stored in the container would continue to flow out until it was exhausted. .

This idea was made in view of the above-mentioned problems, and includes a concrete bucket that doubles as a hopper, allowing the container body to be raised and laid down safely and smoothly, and even when the opening/closing valve is inoperable, the outflow of ready-mixed concrete can be stopped in an emergency. The purpose is to provide

[Means to solve the problem]

In order to solve the above-mentioned problems, this device has a ready-mixed concrete input port and a locking part for lifting the crane on one side of the main body when it is lying on its side, and an on-off valve for the ready-mixed concrete discharge pipe on the other side of the main body. Equipped with a hopper,
In a concrete bucket which also serves as a hopper and which discharges ready-mixed concrete to a pouring position by lifting and transporting one side of the main body in an erect state while the main body is lying on its side, the other side of the main body can be freely rotated to stand up and fall sideways. an emergency valve having a stand mounted on the shaft, an emergency valve provided in the discharge pipe and connecting a counterweight to a valve body; a locking member that locks the counterweight so as to maintain the valve body in a normally open state; This is a concrete bucket that also serves as a hopper and is equipped with an emergency stop device that has an operating mechanism that remotely controls and releases the stop member.

[Effect]

According to this invention, when the main body that is lying on its side is lifted up for transportation, as one side of the main body is lifted, the other side of the main body is promoted to rotate around its pivot point by the stand, so that the main body Standing up and laying down work can be performed stably and smoothly without shaking from side to side. Additionally, if the opening/closing valve is not closed and becomes inoperable while discharging ready-mixed concrete, an emergency stop device is activated. In other words, by operating the operating mechanism, the locking member that locks the counterweight is released, and the valve body of the emergency valve, which is always open, rotates under the weight of the counterweight connected to it. Since the discharge pipe is closed, subsequent leakage of ready-mixed concrete can be prevented and safe work can be performed.

〔Example〕

An embodiment of this invention will be described based on the drawings. Figure 1 of the drawings is a side view of the concrete bucket that doubles as a hopper in the state of being laid down, Figure 2 is a plan view of the concrete bucket that doubles as a hopper in the same state,
FIG. 3 is a schematic diagram showing the emergency stop device, and FIG. 4 is a schematic diagram showing the operating state of the counterweight of the emergency stop device.

The concrete bucket A that also serves as a hopper consists of a container body B for storing ready-mixed concrete, a frame C attached to surround the container body B, a stand D attached to one side of the frame C, and a container body B for discharging the container body B. It consists of an emergency stop device E provided on the pipe 5.

The container body B has a hopper part 2 formed at the longitudinal end of a rectangular parallelepiped body part 1. As shown in FIG. 2, on the upper surface of one side end of the body 1 when it is laid down on its side, there is provided an inlet 4 with a lattice-like member 3 attached to the opening for injecting ready-mixed concrete.

An opening/closing valve 6 is provided in the discharge pipe 5 on the distal end side of the hopper section 2. This opening/closing valve 6 connects a power cable from a power source (not shown) to a power cylinder (not shown) via a long lead wire 8 (approximately 10 m) extending from an operation panel 7 attached to a frame C as shown in FIG. It's connected. The operation panel 7 is equipped with a power indicator light, a normal phase indicator light, and a fully closed indicator light, and a waterproof outlet is attached to the tip of the lead wire 8 that connects to the power cable. In addition, the tip of a separate long lead wire (approximately 10 m) from the operation panel 7 is connected to the opening/closing valve 6.
4. Closing and turning on/off the vibrator (not shown)
A push-button operation switch 9 on which dots are arranged is attached. Turning on/off switch 9 from the ground
In the off operation, the power cylinder is reciprocated to open and close the on-off valve 6 and to operate and stop the vibrator.

A frame C assembled with shaped steel is provided on the outer periphery of the container body B so as to surround almost the entire body, and the hopper part 2 side in the sideways state has a corner on the lower surface side and the end surface side adjacent thereto. The portion is cut out so that it does not interfere with the rotation of the container body B, such as standing up or laying it down. At one end of the frame C (the right end in FIGS. 1 and 2), locking portions 10 are formed at the four corners, and one end of a wire rope 11 of a predetermined length is connected to each end. The end thereof is connected to one suspension ring 12 which is secured by a crane hook (not shown).

Also, the other end of the frame C (FIGS. 1 and 2)
A stand D is attached to the left end (in the figure). This stand D consists of side parts 13 disposed on both left and right sides of a frame C in which shaped steel is assembled into a substantially right-angled isosceles triangle and shaped steel corresponding to a perpendicular line is assembled as the long side; It is composed of a plurality of beam members 14 that are horizontally suspended on the long sides. Mounting holes are drilled at positions corresponding to the apexes of the left and right side portions 13, and are aligned with the holes drilled in the stand mounting member 15 of the frame C, and the support shafts 16 are inserted into each hole. The container body B is rotatably attached to the shaft.

On the other hand, the emergency stop device E is composed of an emergency valve 20, a lock pin 32, and an operating mechanism 28, as shown in FIGS. 3 and 4. The emergency valve 20 is provided in the discharge pipe 5 on the distal end side of the opening/closing valve 6. A long valve shaft 22 attached to a butterfly valve type valve body 21 protrudes from the valve case on both sides and is attached to brackets 23, 23' provided on both sides of the frame C via bearings. Further, on the valve shaft 22 between the emergency valve 20 and both brackets 23, 23', there are arms 24, 24' bent at a halfway position, and arms 24, 24' bent at a midway position.
A plow with a weight of 15 to 20 kg attached to the 4' end wheel 25
A counterweight 26 is provided. The counterweight 26 is mounted in such a position that the ends of the bent portions of the arms 24, 24' are parallel to the direction of the valve body 21 when the valve body 21 is in the fully open state. When the counterweight 26 rotates downward under its own weight, the valve body 21 connected to the counterweight 26 opens the discharge pipe 5.
will be closed. Reference numeral 27 denotes a vibration isolating rubber attached to the frame C so that the peg 25 comes into contact with the counterweight 26 at its lower rotation limit position.

Further, the counterweight 26 is connected to the operating mechanism 2.
It is locked via a lock pin 32 engaged with 8. This includes a rotatable lever body 31 that is activated by the operation of the tow rope 29 and returns to its original state by the biasing force of the return spring 30, and a proximal end portion of the one side arm 24 of the counterweight 26 that is connected to the lever body 31. It consists of a lock pin 32 that locks the. As shown in FIG. 3, the lever body 31 has a bent portion pivoted to the frame C so that one side of the lever body 31 is L-shaped in side view and projects in a direction perpendicular to the frame C. An upper end of a tow rope 29 of a predetermined length (for example, 10 m) that can be operated from the ground is connected to the end of one side of the protruding lever body 31, and the end of the other side of the lever body 31 is , a return spring 30 is attached which has one end hooked to the frame body C above it and the other end hooked to the top of this lever body 31. Further, a link member 33 is connected to the other side of the lever body 31, and a lock pin 32 is connected to the tip thereof for locking and unlatching a locking hole formed in the base end of the one side arm 24. . The one side bracket 23 is provided with a hole through which a lock pin 32 can be inserted through a pair of protrusions 23a.
Guide tubes 23b are mounted oppositely between the protrusions 23a, and a gap is provided between them through which the base end of the one side arm 24 can move in and out. The operating mechanism 28 and locking pin 32 therefore operate as follows. By pulling down the tow rope 29, the lever body 31 tilts against the biasing force of the return spring 30, as shown by the imaginary line in FIG.
As the lock pin 32 is pulled, the lock pin 32 connected thereto is removed from the locking hole of the one side arm 24. Since the counterweight 26 is released from the locked state by the lock pin 32, the valve body 21 rotates downward under its own weight and is connected to the valve shaft 22, thereby closing the discharge pipe 5.

The operation of the hopper-cum-concrete bucket A configured as described above will be explained. First, ready-mixed concrete is poured into the container main body B which is lying on its side through its input port 4, and a specified amount is stored therein. The container body B is lifted by a hook of a crane connected to the hanging ring 12. At this time, the operation switch 9 and the tow rope 29 are hung down in advance. As the container body B is lifted, it stands up stably and smoothly without swinging from side to side due to its pivoting with the stand D. Furthermore, as shown in Fig. 5, the concrete is lifted up and transported, and at the pouring position, the worker on the ground operates the operation switch 9 to open the on-off valve 6 and start the ready-mixed concrete while it is still suspended by a crane. Discharge. When the discharge is completed, the operation switch 9 closes the on-off valve 6. Afterwards, it will be lifted up again by a crane and transported to be replenished with ready-mixed concrete. By letting out the crane rope, the container body B lands from the stand D side,
The container body B is tilted and placed on its side at the shaft attachment part. At this time as well, the container body B is smoothly tipped sideways due to the pivoting connection with the stand D.

In addition, if a situation occurs where the on-off valve 6 is not closed due to a failure in the electrical system etc. while discharging ready-mixed concrete,
Tow rope 2 hanging down with operation switch 9
Pull 9 to activate emergency stop device E. This operation activates the operating mechanism 28 to release the locked state between the lock pin 32 and the one side arm 24 of the counterweight 26, and the valve body 21 of the emergency valve 20, which is always open, closes the discharge pipe 5. I will do it. Therefore, even if the on-off valve 6 remains open, the discharge pipe 5 can be immediately closed to prevent ready-mixed concrete from flowing out.

[Effect of idea]

Since this invention is configured as described above, it has the following effects.

Since the stand is pivoted to the container body, when the container body is raised or laid down, it can be done stably and smoothly without swinging from side to side, and the work can be carried out safely.

Additionally, even if you encounter an inoperable situation where the on-off valve does not close while discharging ready-mixed concrete, by activating the emergency stop device, the counterweight will be released from the locked state and the normally open emergency valve will be turned off. Since the discharge pipe is closed with the body, discharge of ready-mixed concrete is stopped, preventing unnecessary leakage and contributing to safe work.

[Brief explanation of the drawing]

The drawings relate to one embodiment of this invention. Figure 1 is a side view of the concrete bucket that also serves as a hopper in a state where it is lying on its side, Figure 2 is a plan view of the concrete bucket that also serves as a hopper in the same state, and Figure 3 is an emergency stop device. FIG. 4 is a schematic diagram showing the operating state of the counterweight of the emergency stop device, and FIG. 5 is an explanatory diagram showing the lifting state of the concrete bucket that also serves as a hopper. A... Concrete bucket that also serves as a hopper, B
...Container body, C...Frame, D...Stand, E
...Emergency stop device, 2...Hopper section, 4...Inlet, 5...Discharge pipe, 6...Opening/closing valve, 10...
...Locking part, 15...Stand mounting member, 16...
...Spindle, 20...Emergency valve, 21...Valve body,
22... Valve stem, 23, 23'... Bracket, 2
3a... Projection piece, 23b... Guide tube, 24,2
4'...Arm, 25...Spring, 26...Counterweight, 28...Operation mechanism, 29...Tug line,
30...Return spring, 31...Lever body, 32...Lock pin, 33...Link material.

Claims (1)

[Scope of Claim for Utility Model Registration] A hopper with a ready-mixed concrete input port and a locking part for lifting the crane on one side of the body that is lying on its side, and an on-off valve for the ready-mixed concrete discharge pipe on the other side of the body. In a concrete bucket that also serves as a hopper, the concrete bucket is lifted up and transferred with one side of the main body lying on its side in an erect state, and discharges ready-mixed concrete to the pouring position. an emergency valve having a freely movable stand pivoted thereon, an emergency valve provided in the discharge pipe and connecting a counterweight to a valve body, and a locking member that locks the counterweight so as to maintain the valve body in an open state at all times. and an emergency stop device equipped with an operation mechanism for remotely controlling and releasing the locking member.