JP2002346360A - Transport mechanism of underwater mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a work for putting in and taking out an underwater mixer 22 against a water tank P by hanging up the underwater mixer 22 liftably supported to a guide bar 1 extending from an underwater position of the water tank P to a position above the water surface W and stirring stored water by a hanging up strut 35. SOLUTION: The hanging up strut 35 is standingly and rotatably provided on a bearing part 14 of an upper bracket 11 at a position different from a guide bar 1. The underwater mixer 22 is rotated by the hanging up strut 35 in the state that it is removed out from an upper end of the guide bar 1 and is hung in midair. The underwater mixer 22 can be moved between a position just above a position ascending/descending along the guide bar 1 and a position above a floor surface P3 around the water tank P.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an underwater mixer used for agitating stored water in a sewage treatment plant, a water storage in various factories, a pond lake, a moat, a fish farm and the like. Belongs to the technical field related to a loading / unloading mechanism for loading / unloading to / from a device.

[0002]

2. Description of the Related Art Conventionally, in water tanks such as sewage treatment plants, various factories, and the like, pond lake water, moats, fish farms, etc. It is known that a mixer is submerged and installed, and the stored water is stirred by the operation of the submersible mixer.For example, stirring of the stored water prevents sedimentation of sludge and destruction of floating scum in sewage treatment plants, Prevention and the like can be achieved. The underwater mixer includes a plurality of stirring blades provided integrally with the boss, and a motor having an output shaft directly connected to the boss,
A swirling flow is generated in the stored water by rotation of the stirring blades driven by the motor, and in some cases, a blower for blowing air into the swirling flow of the stored water to diffuse the swirl is connected to the underwater mixer.

When such an underwater mixer is installed in a water tank, for example, as shown in Japanese Patent Application Laid-Open No. 2000-167375, the water mixer extends along the side wall of the water tank so as to extend from an underwater position in the water tank to a position above the water surface. A guide bar (guide column) is erected, and a support base is slidably supported on the guide bar via a slide member, and an underwater mixer is mounted and fixed to the support base. Since the reaction force (thrust force) from the stored water acts on the guide bar when the underwater mixer is operated, the upper part is on the support bracket fixed to the side wall of the water tank, and the lower part is the side wall of the water tank or the bottom part of the water tank. (The bottom of the tank) is supported by a support bracket attached and fixed to the (bottom). In addition, the direction of the underwater mixer is changed by supporting the guide bar rotatably around the vertical axis with respect to the upper and lower support brackets.

The underwater mixer is connected to a lower end of a suspension chain as a suspension member. When changing the depth of the underwater mixer, the suspension chain is raised and the underwater mixer is moved along the guide bar. Raise it,
Alternatively, loosen the suspension chain and lower the underwater mixer along the guide bar by its own weight to move it to the desired depth position, and at that position suspend the underwater mixer with the suspension chain stretched by the suspension chain I am trying to do it. Also, when removing the underwater mixer from the water for maintenance and inspection, lift the suspension chain and raise the underwater mixer along the guide bar to take it out of the stored water. Conversely, when submerged in the storage water, if the suspension chain is loosened, the underwater mixer moves down along the guide bar by its own weight and is held at a predetermined depth position.

When the underwater mixer is taken out of the water as described above, a member for connecting the upper end of the suspension chain is required. For this reason, it is known that a lifting column is provided at the upper end of the guide bar. Have been. That is, conventionally, the lifting column has an extension portion in which the upper end portion of the guide bar is extended upward, and an arm portion extending from the upper end (tip) of the extension portion to a position substantially directly above the underwater mixer in the horizontal and horizontal direction. A chain block or the like on which the upper end of the hanging chain is hung is suspended from this arm, and the suspension chain is pulled by the operation of the chain block and the like, so that the underwater mixer is raised along the guide bar and the underwater mixer is lifted from the water. It is designed to be raised.

[0006]

However, in the above-mentioned conventional apparatus, since the guide bar is extended upward and the lifting column is provided, the lifting of the underwater mixer by the lifting column alone will guide the underwater mixer. It cannot be removed from the bar. For this reason, when performing maintenance and inspection of the underwater mixer, insert a pedestal under the underwater mixer suspended by the lifting column, lower the underwater mixer on the pedestal, and then suspend the underwater mixer. It is necessary to perform maintenance and inspection after removing from the For example, if the guide bar extends upward through the opening of the water tank and the opening is always sealed, the underwater mixer is lifted by the lifting column via the opening with the lid open,
After the lifting, it is necessary to re-cover and lower the underwater mixer thereon. In this case, while the underwater mixer is suspended, the operation of closing the lid on the lower side must be performed, which is a difficult operation.

In addition, the underwater mixer lifted by the lifting column can be transferred to another unloading machine (for example, another chain block or forklift). In this case, the underwater mixer transferred to the unloading machine is guided. In order to separate from the bar, it is necessary to disassemble the slide member and remove it from the guide bar, which is a large-scale operation.

[0008] When the underwater mixer is carried into the water tank after maintenance or the like, the operation in the reverse procedure is required, and the same problem cannot be avoided.

The present invention has been made in view of the above points, and an object of the present invention is to improve the structure of a lifting column so that an underwater mixer lifted by the lifting column can be easily carried in and out of a water tank. Is to do so.

[0010]

In order to achieve the above object, according to the present invention, the lifting column is rotatably provided at a position different from the guide bar.

Specifically, according to the first aspect of the present invention, a stirrer is supported by a guide bar which is provided upright so as to extend from an underwater position in the water tank to a position above the water surface, and is capable of agitating the water in the water tank. As a carry-in / out mechanism of the underwater mixer for carrying in / out the underwater mixer having the blades, a lifting column for lifting the underwater mixer is rotatably provided at a position different from the guide bar. And

According to the above configuration, when the underwater mixer is carried out of the water tank, the underwater mixer is lifted by lifting the underwater mixer on the lifting column, and the underwater mixer rises along the guide bar and is taken out of the water. Then, since the lifting column is erected at a position different from that of the guide bar, the underwater mixer exits from the upper end thereof after ascending the guide bar and is suspended. In addition, since the lifting column is rotatable, if the lifting column is rotated while the underwater mixer is suspended in the air, the underwater mixer pivots from directly above the position at which it rises and descends along the guide bar to another position. Then, the underwater mixer descends and moves on the floor surface around the water tank. On the other hand, when the underwater mixer is carried into the water tank, the reverse operation to that at the time of carrying out may be performed. Therefore, the work of closing the lid of the water tank for mounting the underwater mixer when loading and unloading the underwater mixer, the work of separating the underwater mixer at the intermediate portion of the guide bar, the loading and unloading work by another unloader, and the like are completely unnecessary. The work of carrying in and out the water tank of the underwater mixer can be performed easily and easily.

According to the second aspect of the present invention, it is assumed that a support bracket for supporting an upper portion of the guide bar is provided, and a lifting column is rotatably provided on the support bracket. With this, the standing position of the lifting post can be specified,
The same function and effect as the first aspect of the invention can be obtained.

According to the third aspect of the present invention, the upper portion of the guide bar is rotatably supported by the support bracket at the shaft portion, and the direction of the underwater mixer can be changed by the rotation of the guide bar around the shaft portion. The lifting column is configured to stand upright on the support bracket concentrically with the shaft of the guide bar.

By utilizing the fact that the guide bar is rotatable around the shaft, the lifting column is erected concentrically with the shaft on a support bracket for supporting the shaft.
It is not necessary to provide a column receiving portion for supporting the lifting column on the supporting bracket separately from the bearing portion for the shaft portion of the guide bar, and the supporting structure of the lifting column on the supporting bracket can be simplified.

According to a fourth aspect of the present invention, in the carrying-in / out mechanism of the underwater mixer according to the first aspect, a support bracket for rotatably supporting an upper portion of the guide bar on a shaft portion of the guide bar is provided. The direction of the underwater mixer is made variable by rotation of the guide bar around the shaft, and the shaft of the guide bar is supported by the support bracket in a penetrating state,
It is assumed that a lifting column is rotatably provided on the shaft.

In this case, the lifting column is supported by the guide bar not by the support bracket but by the shaft, and the load when the underwater mixer is lifted and supported by the lifting column is applied to the guide bar, and the guide bar is placed on the bottom of the water tank. When supported, the lifting load will be received at the tank bottom,
It is not necessary to increase the strength of the support bracket, and the structure can be simplified.

In the fifth aspect of the present invention, the lifting column has an arm extending substantially directly above the underwater mixer.
Thus, the underwater mixer can be easily lifted and supported by the lifting columns.

According to the invention of claim 6, the lifting column is detachable. Thus, when it is not necessary to carry in / out the underwater mixer, the lifting column may be removed when it is not necessary, and there is no hindrance in various operations other than carrying in / out of the underwater mixer.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 2 shows the entire structure of a carrying-in / out mechanism of an underwater mixer according to Embodiment 1 of the present invention, where P is a water tank, for example, in a sewage treatment plant or various factories. It consists of a reservoir, a pond lake, a moat and a fish farm. A guide bar 1 is erected on a side wall P1 of the water tank P so as to extend from a tank bottom P2, which is an underwater position in the water tank P, to near a floor surface P3 around the water tank P, which is located above the water surface W. 1
The upper part is supported by an upper bracket 11 as a support bracket, and the lower end is supported by a lower base 17.

That is, as shown in an enlarged manner in FIG. 1, the guide bar 1 is supported on a guide bar main body 2 in the form of a hollow square tube, and at the upper and lower portions of the guide bar main body 2 at the center in the width direction of the rear surface. It has cylindrical upper and lower shaft portions 5 and 6 which are integrally fixed via the portions 3 and 4 and are arranged parallel to the guide bar main body 2 and concentrically with each other.

The upper bracket 11 is provided at a position above the water surface W on the side wall P1 of the water tank P, with the anchor bolts B,
B,..., A connecting portion 13 extending in the horizontal direction protruding from the surface of the mounting portion 12 at the base end thereof, and a distal end of the connecting portion 13. And a cylindrical bearing 14 having an up-down axis. The lower half of the bearing 14 protrudes below the mounting portion 12 and the connecting portion 13, and The upper shaft portion 5 of the guide bar 1 is rotatably supported in an outer fitting state.

On the other hand, the lower base 17 is provided with a plate-like mounting portion 18 which is mounted and fixed via the anchor bolts B, B,... A cylindrical bearing portion 19 which is arranged and protruded immediately below the bearing portion 14 of the upper bracket 11 and has a vertical axis line. Is rotatably fitted and supported. A small-diameter portion 6a having a smaller diameter than the upper half portion is formed in a stepped shape on the outer periphery of the lower half portion of the lower shaft portion 6 of the guide bar 1, and the small-diameter portion 6a is formed in the bearing portion 1 of the lower base 17.
In the state where the step portion 6b is brought into contact with the upper end surface of the bearing portion 19, that is, the lower end of the small diameter portion 6a is inserted and supported so as to be separated from the bottom portion (the mounting portion 18) of the bearing portion 19.

When the water tank P is pond lake water, a moat, a fish farm, or the like, and the side wall P1 or the tank bottom P2 is soil, for example, the anchor bolts B, B are formed on the side wall P1 or the tank bottom P2 by concrete. , ... should be implanted.

With such a support structure of the guide bar 1, the guide bar 1 is supported by the upper and lower shaft portions 5 and 6 so as to be rotatable around the vertical axis. Swings together with the guide bar 1, and its direction can be changed. Reference numeral 9 denotes a handle that is rotatably provided on the guide bar 1 and adjusts the direction of the underwater mixer 22.

An underwater mixer 22 is supported on the guide bar 1 so as to be able to move up and down. The underwater mixer 22 includes a plurality of (in the illustrated example, three) integrally provided on the boss portion 23.
, An electric motor 25 in which an output shaft (not shown) is directly connected to the boss 23, and the stirring blades 24, 24, 24 are fixedly supported by a housing of the motor 25. , And a guide plate 26 having a tapered tapering shape disposed around the rotating shaft. The rotating blades 24, 24,... Driven by the motor 25 generate a swirling flow in the stored water.

A slide member 27 for supporting the underwater mixer 22 on the guide bar 1 so as to be able to move up and down is integrally fixed to the rear end of the housing of the motor 25. As shown in FIG. 3, the slide member 27 includes a U-shaped slide member body 28 fitted from the front side so as to surround the guide bar 1.
Is fixed to the rear end of the housing of the motor 25 at the front plate portion. On the back surface (inner surface) of the front plate portion of the slide member main body 28, a resin sliding contact plate 29 that slides on the front surface of the guide bar main body 2 is mounted and fixed, and up and down of rear end portions (tip portions) of left and right side plate portions. At both end positions, the rolls 2 come into contact with the rear surface of the guide bar body 2 at positions facing each other in the left-right direction
A pair of guide rollers 30, 30,... Are rotatably supported, and a sliding contact plate 29 made of a resin is provided on the front surface of the guide bar body 2 with respect to the inside of the slide member body 28. , 30, ... are fitted so as to abut against the rear surface of the guide bar main body 2, respectively, and the slide member 27 is supported on the guide bar main body 2 by the sliding contact plate 29 and two pairs of upper and lower guide rollers 30, 30, ... In this state, the sliding member 27 and the underwater mixer 22 can be moved up and down along the guide bar 1 by sliding contact of the sliding contact plate 29 and rolling of each guide roller 30.

A lower end of a suspension chain 31 as a suspension member is attached to the housing of the motor 25 in the underwater mixer 22.
Numeral 1 extends upward and its upper end is an upper bracket 11
It is locked and held. A power supply cable 32 for the motor 25 is integrally locked and held by the suspension chain 31.

Further, in order to carry the underwater mixer 22 supported by the guide bar 1 up and down into and out of the water tank P, a lifting column 35 for lifting the underwater mixer 22 is provided on the guide bar 1 (guide bar body). The upper bracket 11 is rotatably provided at a position different from 2), specifically, at the upper bracket 11. That is, this lifting support 35
A column portion 36 extending in the up-down direction, a base portion is integrally fixed to an upper end of the column portion 36, and a tip portion is
And an arm portion 37 extending horizontally and substantially above the
A hooking chain 38 is hung near the tip of the arm portion 37, and a hook 39 is attached to a lower end of the hooking chain 38. When loading and unloading, lock chain 3
For example, a chain block (not shown) is suspended as a lifting device on the hook 39 at the lower end of the hook, and the suspension chain 31 is locked on the chain block (other than the chain block). A lifting device may be used).

As shown in FIG. 1, the column portion 36 of the lifting column 35 is cylindrical, and a small-diameter portion 36a having a smaller diameter than the upper portion is formed on the outer periphery of the lower end portion in a stepped shape. The small-diameter portion 36a is inserted and supported in the bearing portion 14 of the upper bracket 11 so that the stepped portion 36b can be pulled out from above from the upper portion while the stepped portion 36b is in contact with the upper end surface of the bearing portion 14. Thus, the lifting column 35 is erected on the upper bracket 11 so that the column portion 36 is concentric with the upper shaft portion 5 of the guide bar 1. The lifting support 35 is detachable from the upper bracket 11.

Next, a description will be given of a case where the underwater mixer 22 is carried out of the stored water in the water tank P for maintenance and inspection in the above embodiment. For example, a chain block is hung on the hook 39 at the lower end of the locking chain 38 suspended from the arm portion 37 while being positioned on the surface P3. The upper end of the lower chain 31 is wound. Thereafter, the lifting column 35 rotatably supported by the bearing section 14 of the upper bracket 11 is rotated substantially half a turn to position the arm section 37 at a position almost directly above the underwater mixer 22 in the water, and the chain block is set. When the suspension chain 31 is hoisted by the operation of, the underwater mixer 22 locked by the suspension chain 31 rises along the guide bar main body 2 of the guide bar 1 and comes out of the water.

The lifting column 35 is not formed immediately above the guide bar 1 and is located at a position different from that of the guide bar body 2.
Of the guide bar main body 2
Has an upper open end. For this reason, when the underwater mixer 22 is further pulled up, the slide member 27 of the underwater mixer 22 comes out of the open upper end of the guide bar main body 2, and the underwater mixer 22 is attached to the lifting column 35 by the locking chain 38 and the hook. 39, it is suspended in the air via the chain block and the suspension chain 31. Next, when the lifting column 35 is rotated by approximately a half turn while the underwater mixer 22 is suspended in the air, the underwater mixer 22 is suspended in the air and the floor surface P3 around the water tank P is moved from a position almost directly above the guide bar 1. Move to the upper position. Thereafter, the underwater mixer 22 is lowered by the chain block and placed on the floor surface P3. In this state, maintenance and inspection of the underwater mixer 22 may be performed.

On the other hand, when carrying out the underwater mixer 22 into the water tank P after the completion of the maintenance and the like (the same applies to the case where the underwater mixer 22 is newly installed), the operation reverse to that at the time of carrying out is carried out. Good. That is, the floor surface P around the water tank P
The suspension chain 31 connected to the underwater mixer 22 on the hook 3 is hung on a chain block locked on the hook 39 of the lifting column 35, and the underwater mixer 22 is lifted on the lifting column 35 by this chain block to be suspended in the air. And In this state, the lifting column 35 is rotated substantially half a turn to move it to a position almost directly above the guide bar 1 (above the water surface W), and while the underwater mixer 22 is lowered by the chain block, the slide member 27 is guided by the guide bar 1. The bar body 2 is fitted from the upper end. When the underwater mixer 22 is lowered by the chain block after the slide member 27 is fitted to the guide bar body 2, the underwater mixer 22 moves down by its own weight while being guided by the guide bar body 2 by the slide member 27. Submerged in water.
When the underwater mixer 22 reaches a predetermined depth position,
The suspension chain 31 is detached from the chain block and fixed to the upper bracket 11 so as to be fixed.
2 is held at a predetermined depth position while being suspended by the suspension chain 31.

Therefore, in this embodiment, when the underwater mixer 22 is carried in and out, when the water tank P is closed with a lid, the lid is closed for mounting the underwater mixer 22, and the underwater mixer 22 is guided. The work of separating at the middle part of the bar, the work of loading and unloading with other unloading machines, etc. become completely unnecessary,
Carrying in and out of the water tank P of the underwater mixer 22 can be performed easily and easily.

The lifting column 35 is provided with an upper bracket 11 for supporting the upper portion of the guide bar 1 with the upper shaft 5.
Of the guide bar 1 so as to be concentric with the upper shaft portion 5 of the guide bar 1, so that the support bracket 15 for supporting the lifting support 35 on the upper bracket 11 (the third embodiment described later). Need not be provided separately from the bearing portion 14 for the upper shaft portion 5 of the guide bar 1, and the support structure of the lifting column 35 by the upper bracket 11 can be simplified.

Further, the lifting column 35 includes a column 36
And the arm portion 37 extending substantially directly above the underwater mixer 22 from its upper end, so that the underwater mixer 22 can be easily lifted and supported by the lifting posts 35.

Since the lifting column 35 is detachably mounted on the bearing portion 14 of the upper bracket 11,
When it is unnecessary to carry out the underwater mixer 22, the lifting column 35 may be removed from the bearing portion 14 of the upper bracket 11, so that it does not interfere with various operations other than carrying in the underwater mixer 22.

(Embodiment 2) FIG. 4 shows Embodiment 2 of the present invention.
(In the following embodiments, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted). In the first embodiment, the lifting posts 35 are attached to the upper bracket 11. The guide bar 1 is erected on the upper shaft portion 5 of the guide bar 1 while being erected on the bearing portion 14.

That is, in this embodiment, the upper shaft portion 5 of the guide bar 1 is fitted to the cylindrical shaft body 7 having substantially the same diameter as the bearing portion 14 of the upper bracket 11, and is fitted to the shaft body 7. And a connecting shaft 8. The inner surface of the shaft body 7 has a bearing portion 14 of the upper bracket 11 from the upper end to the lower end.
Large-diameter portion 7 that is expanded in a stepped manner so as to have the same diameter as the inner diameter
The lower half of the connecting shaft 8 is rotatably fitted to the large diameter portion 7a with its lower end locked at the lower end of the large diameter portion 7a. The upper half of the connecting shaft 8 is rotatably fitted in the bearing 14 of the upper bracket 11. With such a structure, the connecting shaft 8 of the upper shaft 5 of the guide bar 1 is supported by the bearing 14 of the upper bracket 11 in a penetrating state, and the upper portion of the guide bar 1 is connected to the connecting shaft of the upper shaft 5. 8 rotatably supports the bearing portion 14 of the upper bracket 11.

Then, the column 3 of the lifting column 35
The small-diameter portion 36a on the outer periphery of the lower end of the guide bar 6 is extracted from the upper side of the upper shaft portion 5 of the guide bar 1 in a state where the stepped portion 36b of the column portion 36 is brought into contact with the upper end surface of the connection shaft portion 8 from above. It is fitted and supported as possible. Thus, the lifting support 35 is rotatably provided on the upper shaft 5 of the guide bar 1. Other configurations are the same as those in the first embodiment.

Therefore, this embodiment can provide the same operation and effects as those of the first embodiment. In particular, in the case of this embodiment, the lifting column 35 is supported on the guide bar 1 by the shaft main body 7 and the connection shaft 8 of the upper shaft 5 instead of the upper bracket 11 as in the first embodiment. In a state where the underwater mixer 22 is supported by being lifted by the lifting support 35, the lifting load is applied to the guide bar 1. Since the lower end of the guide bar 1 is supported by the tank bottom P2 of the water tank P via the lower shaft 6 and the lower base 17, a lifting load can be received at the tank bottom P2, and the lifting load can be reduced. There is no need to increase the strength of the upper bracket 11 to receive the upper bracket 11, and the structure can be simplified accordingly.

(Embodiment 3) FIG. 5 shows Embodiment 3 of the present invention.
In the first embodiment, the lifting posts 35 are erected on the bearings 14 of the upper bracket 11, whereas the lifting posts 35 are erected at positions different from the bearings 14.

That is, in this embodiment, in the middle of the connecting portion 13 of the upper bracket 11 (on the mounting portion 12 side with respect to the bearing portion 14 supporting the upper shaft portion 5 of the guide bar 1).
Similarly to the bearing 14, a cylindrical column receiving portion 15 having a vertical axis is formed. And the lifting column 3
The small diameter portion 36a on the outer periphery of the lower end of the support portion 36 in FIG. 5 contacts the stepped portion 36b of the support portion 36 with the upper end surface of the support portion 15 from above in the support receiving portion 15 in the middle of the connecting portion 13 in the upper bracket 11. It is fitted and supported so that it can be pulled out in a squeezed state. Thus, the lifting column 35 is rotatably provided on the upper bracket 11.

The other structure is the same as that of the first embodiment. Therefore, in this embodiment, substantially the same operation and effect as those of the first embodiment can be obtained.

In each of the above embodiments, the lifting support 35
Are erected on the upper bracket 11 or the upper shaft portion 5 of the guide bar 1, but the erected position of the lifting column 35 is not limited to these. In short, the lifting column 35 is located at a position different from that of the guide bar 1. What is necessary is just to stand up rotatably.

In each of the above embodiments, the lifting support 3
Although 5 is detachable, it can also be set up so that it cannot be detached (however, rotation is possible).

Further, in each of the above embodiments, the guide bar 1 can swing around the shaft portions 5 and 6, but the present invention can of course be applied to a type in which the guide bar does not swing. That is.

[0048]

As described above, according to the first aspect of the present invention, the underwater mixer supported by the guide bar extending from the underwater position of the water tank to a position above the water surface so as to be able to ascend and descend into and out of the water tank. As an underwater mixer loading / unloading mechanism,
The lifting column that lifts the underwater mixer is rotatably erected at a position different from the guide bar, so that the lifting column rotates the underwater mixer out of the upper end of the guide bar and rotates along the guide bar. The underwater mixer can be moved between substantially directly above the position and above the floor outside the opening of the water tank, and the work of loading and unloading the underwater mixer to and from the water tank can be performed easily and easily.

According to the second aspect of the present invention, since the lifting posts are rotatably provided on the support bracket supporting the upper portion of the guide bar, the standing position of the lifting posts can be embodied.

According to the third aspect of the present invention, when the upper portion of the guide bar is rotatably supported on the shaft by the support bracket, the lifting column is set up on the support bracket concentrically with the shaft of the guide bar. With this construction, it is not necessary to provide a column support for supporting the lifting column on the support bracket separately from the bearing for the shaft of the guide bar, and the supporting structure of the lifting column on the support bracket is simplified. can do.

According to the fourth aspect of the present invention, when the upper portion of the guide bar is rotatably supported on the shaft by the support bracket, the shaft of the guide bar is supported by the support racket in a penetrating state. Since the lifting column is rotatably erected on the shaft, the load when the underwater mixer is lifted and supported on the lifting column can be applied to the guide bar,
It is not necessary to increase the strength of the support bracket, and the structure can be simplified.

According to the fifth aspect of the present invention, the lifting column is
By having the arm portion extending substantially directly above the underwater mixer, the underwater mixer can be easily lifted and supported by the lifting column.

According to the sixth aspect of the present invention, since the lifting column is detachable, it is possible to prevent the lifting column from being in the way during various operations other than carrying in and out of the underwater mixer.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a support structure of a lifting column according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the entire structure of a carry-in / out mechanism of the underwater mixer according to the first embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a slide member.

FIG. 4 is a view corresponding to FIG. 1 showing a second embodiment.

FIG. 5 is a view corresponding to FIG. 1 showing a third embodiment.

[Explanation of symbols]

 P Water tank 1 Guide bar 5 Upper shaft part 6 Lower shaft part 8 Connecting shaft part 11 Upper bracket (support bracket) 14 Bearing part 15 Support receiving part 17 Lower base 22 Underwater mixer 24 Stirrer blade 25 Motor 27 Slide member 31 Hanging chain 35 lifting column 36 column column 37 arm column

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yoshiyuki Horie 14 Takudaidai, Ono City, Hyogo Prefecture New Meiwa Industry Co., Ltd. 4G037 DA30 EA03 4G078 AA30 AB20 BA01 CA23 DA19 DB08

Claims (6)

[Claims] 1. An underwater mixer having stirring blades, which are supported by a guide bar provided to extend from an underwater position in a water tank to a position above the water surface and which are capable of ascending and descending, and which stir the water in the water tank, is mounted on the water tank. A loading / unloading mechanism of an underwater mixer for loading and unloading, wherein a lifting column for lifting the underwater mixer is rotatably provided upright at a position different from the guide bar. . 2. The underwater mixer carrying-in / out mechanism according to claim 1, further comprising a support bracket for supporting an upper portion of the guide bar, wherein a lifting column is rotatably provided on the support bracket. Underwater mixer loading and unloading mechanism. 3. The carrying-in / out mechanism of an underwater mixer according to claim 2, wherein an upper portion of the guide bar is rotatably supported on a shaft by a support bracket, and the guide bar is rotated around the shaft by the rotation of the guide bar. An underwater mixer loading / unloading mechanism, wherein the direction of the mixer is variable, and the lifting column is erected on the support bracket concentrically with the shaft of the guide bar. 4. The carrying-in / out mechanism of an underwater mixer according to claim 1, further comprising a support bracket for rotatably supporting an upper portion of the guide bar on a shaft portion of the guide bar, wherein the guide bar is provided around the shaft portion. The direction of the underwater mixer is made variable by the rotation of the shaft, the shaft of the guide bar is supported in a penetrating state by the support bracket, and a lifting column is rotatably erected on the shaft. Underwater mixer loading and unloading mechanism. 5. The underwater mixer loading / unloading mechanism according to claim 1, wherein the lifting column has an arm portion extending substantially directly above the underwater mixer. . 6. The underwater mixer carrying-in / out mechanism according to claim 1, wherein the lifting column is detachable.