JP3046586U - Elevator for sewage tank - Google Patents

Abstract

(57) [Problem] To raise and lower work in a sewage tank raising and lowering device safely and efficiently. SOLUTION: A travelable frame 5 having wheels 17 includes:
Chain wheel 6, road sheave 8, and chain block
10 is attached. A temporary chain 12 connected to a suspension chain 11 connected to the heavy goods 4 in the sewer is suspended between the chain wheel 6 and the load sheave 8. The load sheave 8 and the chain block 10 are linked by an endless chain 36 so as to be driven up and down by a manually operated chain 13 hanging down from the chain block 10.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an elevating device for a sewer tank.

[0002]

[Prior art]

 Conventionally, to lift, pump, and aquarator heavy objects to the ground for inspection, replacement, repair, installation, etc. of pumps and aquarators installed in sewer tanks, as shown in Fig. 12, A fixed frame e composed of pillars c, c standing upright around the upper hole b of the sewage tank a and a beam d bridging the bridge c on the upper ends of the pillars c, c; A lifting / lowering for a sewage tank equipped with a chain block f in which a chain n with lifting / lowering hooks attached to the center of the fixed frame e and capable of lifting / lowering within a short stroke is suspended, and a fixed hook g for temporary suspension. The device was used.

In order to use the conventional elevating device for a sewage tank, a plurality of metal rings k and a plurality of metal rings k arranged at a predetermined pitch are attached to a heavy object h in a sewage tank a. A hook fixedly connected to the lower end of the metal-striped filament j composed of the wire m to be connected and having the upper end of the metal-striped filament j fixed near the lower edge of the hole b. i, and after removing a cover (not shown) from the hole b, the metal ring k at the upper end of the striated body j is replaced with the chain n with the lifting hook of the chain block f. Thereafter, the metal ring k is raised by substantially the same pitch as that of the metal ring k, the metal ring k is replaced with a fixed hook g and suspended temporarily, and then the chain n with the lifting hook is lowered to lower the metal by one. By repeating the work of lifting the ring over the ring k, the heavy object h is moved every pitch of the metal ring k. In order to rise.

[0004]

[Problems to be solved by the invention]

 However, in the above-mentioned conventional elevating device for a sewer tank, since the worker needs to stand on the edge of the hole b and lean on the hole b to perform the lifting operation, There was a risk of falling into the sewage tank a, which was dangerous. In addition, in the elevating operation, the metal ring k needs to be replaced many times with the chain n with the elevating hook and the fixed hook g for temporary suspension, which is troublesome and prolongs the operation time. There was a problem. In addition, since the entire system was fixed, it could not be moved to another sewage tank, which was inconvenient.

Therefore, the present invention solves the above-mentioned problem, and can perform the lifting and lowering operation safely, can perform the operation easily and in a short time, and easily move the entire apparatus. An object of the present invention is to provide an elevating device for a sewage tank that can be operated.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a sewage tank elevating device according to the present invention is provided with a chain wheel, a load sheave, and a chain block attached to a runnable frame having wheels, and a lower portion attached to the chain wheel and the load sheave. The temporary chain connected to the hanging chain connected to the heavy goods in the water tank is suspended, and the above-mentioned load sheave and the chain block are linked and connected by an endless chain. It is configured to be driven up and down. Further, it is preferable that the chain wheel is disposed at the center of the movable frame and the chain block is disposed on the side of the movable frame.

In addition, a chain wheel and a manual take-off device with a speed reducer are attached to a runnable frame having wheels, and a temporary chain connected to a suspension chain connected to the heavy load in the sewer tank by the chain wheel. And the above-mentioned temporary chain is suspended so as to be able to be taken over the manual take-up machine with a speed reducer. Further, it is preferable that the chain wheel is disposed at the center of the movable frame, and that the manual take-off device with reduction gear is disposed on the side of the movable frame.

In addition, a striated sheave and a manual winch are attached to a runnable frame having wheels, and the sheave is connected to a striated striated body connected to a heavy load in a sewer tank. The temporary striatum is suspended, and the temporary striatum is wound around the manual winch so as to be able to be wound. Further, it is preferable that the striated sheave is disposed at the center of the movable frame, and the manual winch is disposed at the side of the movable frame.

It is preferable that a manual traveling drive mechanism for rotating and driving the wheels by rotating the steering wheel is provided on the traveling frame. In addition, it is desirable that the traveling frame is provided with a traveling direction manual changing mechanism that swings the wheels so that the traveling direction can be changed by turning the steering wheel.

[0010]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail based on the illustrated embodiment.

In FIG. 7, 1 is a lifting device for a sewage tank, 2 is a sewage tank provided in the ground, 3 is an upper hole provided on an upper wall of the sewage tank 2, and 4 is an inside of the sewage tank 2. It is heavy in the sewer tanks such as pumps and aerators installed in the area. Thus, the lifting and lowering device 1 for the sewage tank according to the present invention raises and lowers (lifts) the heavy object 4 installed in the sewage tank 2 when inspecting, replacing, repairing, or attaching the same.・ Hanging).

As shown in FIGS. 1 and 2, the sewage tank lifting / lowering device 1 has a movable frame 5 and a center suspension block which has a chain wheel 6 and is attached to the upper center of the frame 5. 7, a take-off block 9 having a load sheave 8 and attached to the lower side of the frame 5, and a chain block 10 attached to the upper side of the frame 5.

That is, the chain wheel 6, the load sheave 8, and the chain block 10 are attached to the movable frame 5. In addition, a chain wheel 6 is disposed in the center of the movable frame 5, and a chain block 10 is disposed on a side of the movable frame 5. Further, a temporary chain 12 connected to a suspension chain 11 connected to the heavy goods 4 in the sewer is suspended between the chain wheel 6 and the load sheave 8. When not in use, the connecting end of the temporary chain 12 is hung on the support 15 of the frame 5. In addition, the load sheave 8 and the chain block 10 are interlocked and connected by an endless chain 36, and are driven up and down by a manually operated chain 13 hanging down from the chain block 10.

The movable frame 5 is fixed to a pair of lower horizontal members 14, 14 in the front-rear direction, columns 15 erected on the lower horizontal members 14, 14, and upper ends of the columns 15. And a wheel 17 attached to the lower surface of the lower horizontal members 14, 14. In addition, the traveling frame 5 is provided with a manual traveling drive mechanism 18, 18 for rotating and driving the wheels 17 by rotating the steering wheel. Further, the traveling frame 5 is provided with a traveling direction manual changing mechanism 19 for swinging the wheels 17 so that the traveling direction can be changed by rotating the steering wheel. The manual traveling drive mechanisms 18, 18 are provided only on the front or rear wheels 17, 17. The traveling direction manual change mechanisms 19 are provided on all the wheels 17.

As shown in FIG. 3, the traveling direction manual change mechanism 19 includes a worm shaft 20 rotatably mounted on the upper surface of the lower horizontal member 14 of the frame 5 around a horizontal axis. A shaft 21 with a wheel, which is pivotally attached to the flat member 14 in a vertically penetrating manner and is interlocked with a shaft 20 with a worm by meshing with a worm wheel, is fixed to the lower end of the shaft 21 with a wheel. The vehicle includes a wheel mounting frame 22 to be pivotally mounted, and a turning handle 23 fixed to the outer end of the worm shaft 20. The manual traveling drive mechanism 18 includes a first gear 24 fixed to one side surface of the wheel 17, an output pinion 25 meshed with the first gear 24, and a shaft to which the output pinion 25 is fixed. An intermediate large-diameter gear 26 fixed to the other end of the shaft, an input-side pinion 27 meshing with the intermediate large-diameter gear 26, and a traveling handle connected to the outer end of the shaft to which the input-side pinion 27 is fixed. 28.

As shown in FIG. 4, the center suspension block 7 includes a mounting frame 29, a chain wheel 6 rotatably mounted on the mounting frame 29 around a horizontal axis, and a vicinity of the chain wheel 6. , And a chain guide 30 disposed on the As shown in FIG. 5, the take-off block 9 has a mounting base 31, on which the load sheave 8, the pull-in side chain wheel 32, the chain guide 33, and the sprocket wheel 34 are pivotally mounted. You. The load sheave 8 and the sprocket wheel 34 are fixed to one shaft member 35. The temporary chain 12 is suspended on the chain wheel 32, the load sheave 8, and the chain guide 33, and the endless chain 36 (roller chain) for interlocking connection with the chain block 10 (not shown) is suspended on the sprocket wheel 34. .

Next, as shown in FIG. 6, the chain block 10 includes a mounting frame 38, a hand wheel 40 on which the manually operated chain 13 is suspended, a pinion shaft 39 that rotates together with the hand wheel 40, and a pinion A pinion gear 41 that meshes with the pinion of the shaft 39, a load gear 42 that meshes with the pinion gear 41, an interlocking load sheave 37 that co-rotates with the load gear 42, a disk hub 56, and a claw member 57 are provided. Then, the endless chain 36 is suspended from the load sheave 37.

In order to use the elevating device 1 for a sewage tank, as shown in FIG. 7, the entire device 1 is moved to a position directly above a sewage tank 2 such as a sewage treatment plant. At this time, the apparatus 1 can be easily moved by, for example, two workers rotating the traveling handles 28, 28 and the turning handles 23, 23. Thereafter, the lid (not shown) of the upper hole 3 of the sewage tank 2 is opened. At this time, as shown by the phantom line, the lower end of the hanging chain 11 is connected to the heavy object 4 in advance, and the upper end of the hanging chain 11 is fixed near the lower end edge of the upper hole 3. It is hung on the hook 43.

Next, the upper end of the hanging chain 11 is detached from the hook 43 and connected to the end of the temporary chain 12. At this time, the suspension chain 11 and the temporary chain 12 are connected by a connection fitting that can pass through the chain wheel 6 of the central suspension block 7 and the load sheave 8 of the take-off block 9. The suspension chain 11 is composed of a chain that is compatible with the chain wheel 6 and the load sheave 8. Thereafter, if the operator M operates the manual operation chain 13, the heavy object 4 can be lifted.

At this time, the connecting portion between the temporary chain 12 and the suspension chain 11 can smoothly pass through the chain wheel 6 and the load sheave 8, and the suspension chain 11 can be pulled out. The operator may continue to pull the manually operated chain 13 until the heavy object 4 is completely raised above the ground, as shown in FIG. In addition, the temporary chain 12 and the suspension chain 11 that have been taken out are outside the movable frame 5. After that, inspection, replacement, repair, etc. of the heavy goods 4 (such as pumps and aquarators) are performed on the ground. Thereafter, the manually operated chain 13 is operated to lower the heavy object 4. After that, the same operation as described above is performed by moving the lifting device 1 for sewage tank directly above the other sewage tank 2.

As described above, according to the sewage tank lifting device 1, the heavy object 4 can be raised and lowered by operating the manually operated chain 13 outside the movable frame 5. The safety is significantly increased. Further, once the temporary chain 12 and the suspension chain 11 are connected, it is only necessary to operate the manually operated chain 13 until the heavy object 4 is completely raised or lowered, so that the operation can be performed easily and quickly. it can. Further, since the entire apparatus 1 can be easily moved by the manual traveling drive mechanism 18 and the traveling direction manual changing mechanism 19, the number of workers can be reduced and the working efficiency can be improved.

Next, FIGS. 8 and 9 show another embodiment of the sewage tank lifting / lowering device according to the present invention. The sewage tank lifting / lowering device 1 comprises a traveling frame 5 and a chain wheel 6. A manual take-off device 44 with a speed reducer is provided, and a temporary chain 12 connected to a suspension chain 11 connected to the heavy load 4 in the sewer is suspended on the chain wheel 6. The temporary chain 12 is suspended so that it can be taken over. The manual take-off machine with a speed reducer 44 includes a main body 46 having a speed reduction mechanism and a chain take-off mechanism therein, and a rotation handle 45 attached to the main body 46 and connected to the speed reduction mechanism. It is arranged on the side of the possible frame 5.

The wheels 17 are rotatably and oscillatingly mounted on the lower horizontal members 14 of the frame 5, and are configured to move by directly pushing the frame 5 by hand. Further, position fixing legs 47 are attached to both ends of the lower horizontal members 14 so as to be vertically movable. Other configurations are the same as those in FIGS. With this configuration, the structure is simple, the number of components is reduced, and the device can be manufactured easily and at low cost.

Next, FIG. 10 and FIG. 11 show another embodiment of the sewage tank lifting / lowering device according to the present invention. A sheave 48 and a manual winch 49 are attached, and a temporary striated body 51 connected to a suspension striated body 50 connected to the heavy load 4 in the sewer tank is suspended on the sheave 48, and a manual winch is mounted. The temporary linear body 51 is wound around 49 so that it can be wound up. The striated sheave 48 is attached to the center of the movable frame 5 via an attachment member 52. The manual winch 49 has a winding drum 53, a rotary handle 54, and a speed reducer 55, and is disposed on the side of the movable frame 5. As the suspension striated body 50 and the temporary striated body 51, for example, a wire or a rope is used. Other configurations are the same as those shown in FIGS.

Thus, when pulling up the heavy load 4 in the sewage tank, the suspension striated body 50 and the temporary striated body 51 are connected by a connecting tool not shown. As the connecting tool, one that can pass through the striated sheave 48 and can be wound on the winding drum 53 of the manual winch 49 is used. According to the lifting / lowering device 1 for a sewer tank, since the suspension striated body 50 and the temporary striated body 51 are wound around the winding drum 53, the suspension striated body 50 and the provisional striated body 51 have feet or the like. There is no risk of getting caught, and it can be used more safely.

The lifting device 1 for the sewage tank according to the present invention is not limited to the above-described embodiment, and the design can be changed. For example, the device 1 shown in FIGS. 8 and 9 and FIGS. It is also preferable to provide the manual traveling drive mechanism 18 and the manual traveling direction changing mechanism 19 shown in FIG.

[0027]

[Effect of the invention]

 The present invention has the following significant effects by the above configuration.

According to the sewage tank elevating device of the first aspect, once the temporary chain 12 and the suspension chain 11 are connected, the manually operated chain is used until the heavy object 4 in the sewage tank is completely raised or lowered. Since only 13 operations are required, the lifting and lowering work of the heavy object 4 can be performed easily and quickly. In addition, the number of operations performed while standing on the edge of the upper hole 3 of the sewage tank 2 can be reduced, and the safety is enhanced. Further, the entire apparatus can be easily moved onto another sewage tank 2.

According to the sewage tank elevating device of the second aspect, once the temporary chain 12 and the suspension chain 11 are connected, the manual take-off with a speed reducer is performed until the weight 4 in the sewage tank is completely raised or lowered. Since only the rotating operation of the machine 44 is required, the lifting and lowering work of the heavy object 4 can be performed easily and quickly. Further, the entire apparatus can be easily moved onto another sewage tank 2. In addition, the number of operations performed while standing on the edge of the upper hole 3 of the sewage tank 2 can be reduced, and safety can be improved. Furthermore, the number of parts is reduced, the structure is simplified, and the assembly is facilitated.

According to the sewage tank elevating device according to the third aspect, once the temporary chain 12 and the suspension chain 11 are connected, the rotation of the manual winch 49 until the heavy object 4 in the sewage tank is completely raised or lowered. Since only the operation is required, the lifting and lowering work of the heavy object 4 can be performed easily and quickly. In addition, the number of operations performed while standing on the edge of the upper hole 3 of the sewage tank 2 can be reduced, and the safety is enhanced. In addition, the number of parts is reduced, the structure is simplified, and assembly is facilitated. Further, the entire apparatus can be easily moved onto another sewage tank 2. Further, since the provisional striated body 51 and the hanging striated body 50 can be wound around the manual winch 49, the temporary striated body 51 and the suspended striated body 50 may be caught by an operator's foot or the like. No more safety and higher workability.

According to the lifting device for the sewage tank according to the fourth, fifth, and sixth aspects, in addition to the effect of the lifting device for the sewage tank according to the first, second, or third aspect, the lifting / lowering of the heavy object 4 can be performed. Can be performed outside the movable frame 5, and the safety is further improved. According to the sewage tank elevating device according to the seventh aspect, the entire device can be easily moved with a light force by rotating the handle of the manual traveling drive mechanism 18. Accordingly, a small number of workers can efficiently perform inspection, replacement, repair, installation, and the like of pumps and aerators at a sewage treatment plant or the like in which a large number of sewage tanks 2 are provided. According to the sewage tank elevating device according to the eighth aspect, the moving direction of the device can be easily changed with a light force by the handle rotating operation of the traveling direction manual changing mechanism 19.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view.

FIG. 3 is an enlarged sectional view of a main part.

FIG. 4 is an enlarged sectional view of a chain wheel attachment portion.

FIG. 5 is an enlarged sectional view of a load sheave mounting portion.

FIG. 6 is an enlarged sectional view of a chain block.

FIG. 7 is an explanatory diagram of a use state.

FIG. 8 is a front view of another embodiment.

FIG. 9 is a side view.

FIG. 10 is a front view of another embodiment.

FIG. 11 is a side view.

FIG. 12 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 4 Heavy material in sewage tank 5 Runnable frame 6 Chain wheel 8 Load sheave 10 Chain block 11 Suspension chain 12 Temporary chain 13 Manual operation chain 17 Wheel 18 Manual traveling drive mechanism 19 Manual traveling direction change mechanism 36 Endless chain 44 Reduction gear Manual take-off machine 48 Sheave for striated body 49 Manual winch 50 Striated striated body 51 Temporary striated body 52 Mounting member

Claims (8)

[Utility model registration claims] 1. A runnable frame 5 having wheels 17.
In addition, a chain wheel 6, a load sheave 8 and a chain block 10 are attached, and the chain wheel 6 and the load sheave 8 are provided with a temporary chain 12 connected to a suspension chain 11 connected to the heavy load 4 in the sewer tank. The load sheave 8 and the chain block 10 are interlocked and connected by an endless chain 36, and are driven up and down by a manually operated chain 13 hanging down from the chain block 10. Elevator for water tank. 2. Travelable frame 5 having wheels 17.
In addition, a chain wheel 6 and a manual take-off device 44 with a speed reducer are attached, and the chain wheel 6
Temporary chain 12 connected to hanging chain 11 connected to
A lifting device for a sewage tank, wherein the temporary chain 12 is suspended so as to be able to be taken up by the manual take-off device 44 with a speed reducer. 3. A runnable frame 5 having wheels 17.
Then, a striated sheave 48 and a manual winch 49 are attached, and a temporary striated body 51 connected to a hanging striated body 50 connected to the heavy load 4 in the sewer tank is suspended on the sheave 48. And an elevating device for a sewage tank characterized in that the temporary filament 51 is wound around the manual winch 49 so as to be able to be wound. 4. A frame 5 on which a chain wheel 6 can run.
The lifting device for a sewage tank according to claim 1, wherein the chain block (10) is disposed at a center portion of the sewage tank (5), and the chain block (10) is disposed on a side portion of the movable frame (5). 5. A frame 5 on which a chain wheel 6 can run.
The lifting device for a sewage tank according to claim 2, wherein a manual take-off device with a speed reducer is disposed at a center portion of the movable frame. 6. A frame 5 on which a striated sheave 48 can run.
The lifting device for a sewage tank according to claim 3, wherein the manual winch (49) is disposed on a side portion of the movable frame (5). 7. A manual traveling drive mechanism 18 for rotating and driving wheels 17 by rotating the steering wheel on the traveling frame 5.
The lifting device for a sewage tank according to claim 1, 2, or 3. 8. A traveling direction manual changing mechanism 19 for swinging the wheels 17 so that the traveling direction can be changed by a steering wheel rotation operation is provided on the traveling frame 5. The lifting device for the sewage tank described.