JPH0446813Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a mounting frame for a portable stirrer that stirs liquids in order to dissolve solids in liquids or emulsify two mutually insoluble liquids. It is related to.

[Conventional technology]

A portable stirrer is sometimes used by being attached to the rim of a container containing the liquid to be stirred, but depending on conditions such as the strength of the container being insufficient, the stirrer may not be attached to the container. When this is difficult, it is mounted on a mounting frame whose height can be adjusted manually. As such a mounting frame, for example, the one shown in FIG. 6 is known.

In the figure, 30 is a base, on which a pipe-shaped mast 31 is erected and fixed, a shaft 32 is slidably inserted into this mast 31, and a plate 3 for attaching an agitator is attached to the upper end of the shaft 32.
3 is fixed. 34 is a support plate fixed to the upper end of the mast 31; 35 is a screw shaft rotatably installed on the side of the mast 31 and parallel to the base 30; the upper end thereof is attached to the support plate 34;
penetrates through.

36 is a bevel gear fixed to the upper end of the screw shaft 35, 37 is a bearing fixed to the support plate 34, and a bevel gear 39 attached to the support shaft 38 supported by this is engaged with the bevel gear 36. 40 is a handle attached to the support shaft 38; 41
is the mast 3 at a position opposite to the screw shaft 35.
1, the shaft 3 is movable along the slot 41.
2 is attached to the screw shaft 35. 43 is a clamp screw that engages with a screw hole in the mast 31.

This mounting frame allows the shaft 32 to be moved up and down by turning the handle 40, rotating the bevel gears 36 and 39, rotating the screw shaft 35, and moving the nut 42 up and down along the screw shaft 35. This is for adjusting the height of the mounting plate 33 at the upper end. Then, the raised shaft 32 is attached to the clamp screw 4.
Tighten and secure.

[Problems to be solved by the invention] In the above conventional mounting frame, the shaft 32 is moved up and down by the rotation of the handle 40.
It takes a lot of effort to rotate the handle 40, and when the shaft 32 is raised with the agitator attached to the mounting plate 33, a relatively large force is required to rotate the handle 40. When raising the shaft 32 and fixing it, it is necessary to operate the clamp screw 43 with the handle 40 fixed, so it is difficult to operate the clamp screw 43 and the height of the shaft 32 There is a problem that is difficult to determine. When the agitator is not attached to the mounting plate 33, the handle 40 can be easily rotated, but the clamp screw 4
It is the same in that the operation in step 3 is inconvenient.

The object of the present invention is to provide a mounting frame for an agitator that allows for easy height adjustment operations and allows for easy and accurate height setting.

[Means for solving problems]

In the agitator mounting frame of the present invention, a hydraulic cylinder with an oil volume at the bottom is erected on a base, and a plunger is operated by a lever operated by foot or hand to collect oil in the oil volume. A pump section is provided in the oil container section for causing oil to flow into the cylinder to raise a piston rod in the cylinder, and a valve operating handle for opening and closing a return path of oil from the cylinder to the oil container section is provided. The cylinder is slidably inserted into a pipe-shaped mast that is raised by the cylinder, and the mast is provided with an attachment part for the agitator.

[Effect]

When raising the mast of the mounting frame of the present invention, close the return valve of the cylinder with the operating handle, then move the lever up and down with your foot or hand to use the pump to pump the oil in the oil tank into the cylinder. The mast is pushed up by supplying it inside and raising the piston rod. When lowering the mast, when the valve is opened with the operating handle, the oil in the cylinder returns to the oil tank from the return path, which lowers the piston rod and lowers the mast.

〔Example〕

An embodiment of the mounting frame of the present invention will be described with reference to FIGS. 1 to 5.

In the figure, reference numeral 1 denotes a base, on which a hydraulic cylinder 2 with an open upper end is erected, and an oil container 3 is provided at the bottom of this cylinder 2. 4
is the piston rod installed in cylinder 2,
The upper end protrudes from the cylinder 2. 5 is a pipe-shaped mast with a closed upper end, to which cylinder 2 is attached.
is slidably inserted, and a set screw 6 provided on the mast 5 is inserted into a locking groove 4a provided on the outer periphery of the upper end of the piston rod 4, so that the piston rod 4 is rotatably attached to the mast 5. ,
As the piston rod 4 moves up and down, the mast 5 also moves up and down. Reference numeral 7 denotes an agitator attachment part erected at the upper end of the mast 5, and is made of a plate.

Reference numeral 8 denotes guide rollers that sandwich the cylinders 2, which are provided at opposite positions of the lower end of the mast 5, and these rollers are provided with their axes in the horizontal direction and whose positions are shifted from each other in the vertical direction. . Reference numeral 9 denotes a clamp screw provided through the mast 5. When the mast 5 is raised, the clamp screw 9 is pressed against the cylinder 2, thereby tightening the mast 5.
The load acting on the mast 5 is supported by the cylinder 2 to prevent the mast 5 from falling naturally.

10 is a pump provided in the oil container 3 to supply oil in the oil container 3 to the cylinder 2; 11 is a bracket 2a protruding from the outer surface of the lower end of the cylinder 2; and a pin 12 that swings vertically. A supporting shaft 14 is attached to a bearing 13 which is fixed to the upper end of the swinging body with its axis in a horizontal direction, and a lever 15 is fixed to this supporting shaft 14. A cylindrical body 17 is installed vertically in the oil tank 3 with a plunger roller 16 installed with its axis in the horizontal direction.
The pump section 10 is configured to push a plunger 19 inserted into the interior and urged upward by a spring 18, and the up and down movement of the plunger 19 supplies oil in the oil container section 3 to the cylinder 2. I'm starting to do that.

As shown in FIGS. 4 and 5, the support shaft 14 is attached to a locking protrusion 20 that projects over a range of approximately 180 degrees from the end surface of the bearing 13 facing the support shaft 14.
The protrusion 21 provided over a range of about 90 degrees is engaged with the lever 15, and when not in use, the lever 15 is raised almost vertically, and when in use, it is lowered to a horizontal position, and the locking protrusion 20 and the protrusion are engaged with each other. 21 and 21, and then operate the lever 15 to move the rocking body 11 to the pin 1.
2 as a fulcrum, the plunger roller 1
6, the plunger 19 is lowered.

Further, the support shaft 14 has a ball 2 in contact with its peripheral surface.
2 is pressurized by a spring 23, making it possible to maintain the lever 15 in an upright state.

Reference numeral 24 denotes a rod-shaped operating handle that opens and closes the return path (not shown) of oil from the cylinder 2 to the oil container 3. Its lower end is inserted into a support tube 25 installed upright in the oil container 3, and it can be moved up and down with a screw. a ball valve 24 possibly attached and located at its lower end;
At (a), the oil return path can be closed or opened. 26 is a support plate whose one end is fixed to the cylinder 2 and rotatably supports the operation handle 24; 27 is arranged around the operation handle 24 and below the support plate 26, and the operation handle 24 is connected to the screw at the lower end thereof; A coil spring that biases in the tightening direction, one end of which is attached to the support plate 26.
The other end is fixed to a mounting body 28 fixed to the operating handle 24.

29 is a wheel provided on the base 1, and 30 is a handle of the base 1.

As shown in FIG. 1, this mounting frame supports the stirrer 31 by attaching it to the mounting portion 7 provided at the upper end of the mast 5 with its clamp 32. 33 is a stirring blade, and 34 is a stirring tank.

When raising the mast 5, loosen the clamp screw 9 and tighten the operating handle 24. Then, the lever 15 is lowered from the position indicated by the solid line A to the position indicated by the chain line B in FIG. If this is repeated, the plunger 19 compresses the spring 18 and descends, and then rises by the force of the spring 18, which causes the oil in the oil container 3 to be supplied into the cylinder 2. Therefore, the pressure of this oil causes the piston rod 4 to rise inside the cylinder 2, raising the mast 5 to the position shown by the chain line in FIG. When the mast 5 reaches the required height, the operation of the lever 15 is stopped and the clamp screw 9 is tightened to fix the mast 5 to the cylinder 2. Then, the lever 15 is erected as shown by the solid line A in FIG. 2 so that it does not get in the way.

The agitator 31 may be attached to the attachment portion 7 either when the mast 5 is low or after it is raised.

When lowering the mast 5, use the clamp screw 9
After loosening the screw, turn the operating handle 24 in the direction of loosening the screw against the force of the coil spring 27. Then, the oil return path is opened and the oil in the cylinder 2 returns to the oil container 3, causing the mast 5 to descend together with the piston rod 4.

After the mast 5 has lowered, the operating handle 24
When released, the force of the coil spring 27 returns it to the tightened state. Therefore, the effort required to raise the mast 5 next time can be reduced, and there is no fear that the oil in the cylinder 2 will flow into the oil container 3 while the mast 5 is being raised. It is possible to reliably adjust the height.

[Effect of idea]

As described above, the mounting stand of this device adjusts the height of the mast by hydraulically raising the piston rod installed in the cylinder, so that even when the agitator is attached to the mast, it can be easily raised and the agitator can be easily attached and detached to the mast. Furthermore, oil is supplied to the cylinder by a pump operated by foot or hand lever, so it is easy to use, and the mast stops at any height when the lever operation is stopped, so the height can be set easily and accurately.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the mounting frame of the present invention in use, Fig. 2 is an enlarged sectional view of the main parts, Fig. 3 is an enlarged side view of the rocking body, and Fig. 4 is the lever installation. FIG. 5 is a side view of the support shaft, and FIG. 6 is a sectional front view of a conventional mount. 1... Base, 2... Cylinder, 3... Oil container,
4...Piston rod, 5...Mast, 7...Mounting section, 10...Pump section, 15...Lever, 16
... Plunger, 24 ... Operation handle.

Claims (1)

[Scope of utility model registration request] A hydraulic cylinder with an oil container at the bottom and an open top end is installed upright on a base, and a plunger is operated with a foot or hand lever to drain the oil in the oil container into the cylinder. A pump section is provided in the oil container section for causing oil to flow into the oil container and raise a piston rod in the cylinder, and a valve operation handle is provided for opening and closing a return path of oil from the cylinder to the oil container section, and a pipe that is raised by the piston rod is provided. A mounting frame for an agitator, wherein the cylinder is slidably inserted into a shaped mast, and the mast is provided with an attachment part for the agitator.