JP4282277B2 - Pump device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a pump device having a structure in which a pump is attached and detached by moving the pump up and down along two guide pipes.
[0002]
[Prior art]
For example, as shown in FIG. 9, there is a structure in which a so-called pump gate 3 as a water channel opening / closing gate capable of adjusting the amount of drainage is provided in the middle of the water drainage route from the water channel 1 to the river 2.
[0003]
On the upper part of the pump gate 3, an elevating spindle 4 is extended and arranged in the upward direction. A gate opening / closing device 5 linked to the elevating spindle 4 is installed on the upper wall portion to open and close the gate. The pump gate 3 is moved up and down by the opening and closing operation by the device 5 so that the drainage path can be opened and closed.
[0004]
When the water level on the water channel 1 side is higher than the water level on the river 2 side, it is drained by natural flow when the pump gate 3 is open, or a flap that is swingably provided on the pump gate 3 when the pump gate 3 is closed. It is a method of draining by natural flow using the valve 6, and when the water level on the water channel 1 side is higher than the water level on the river 2 side, natural drainage becomes impossible, so the pump gate 3 is closed, The pump provided in the pump gate 3 is driven to forcibly drain from the flap valve 6 position.
[0005]
Further, as shown in FIGS. 10 to 14, the pump gate 3 includes a gate door body 8 configured in a rectangular shape so as to open and close the drainage path so that the drainage path can be freely opened and closed. A communication pipe 9 that connects the water channel 1 and the river 2 to each other is arranged in parallel.
[0006]
The flap valve 6 is swingably attached to the opening of each communication pipe 9 on the river 2 side, and an axial flow pump (an example of a pump) is installed in the opening 9a on the water channel 1 side. The cylindrical pump casing 11 mounted inside is not removably connected to each other.
[0007]
That is, the two guide pipes 13 are spaced apart from each other by a predetermined distance between the upper surface portion on the opening 9a side of each communication pipe 9 and each guide holder 12 mounted above the gate door main body 8 above. And are erected in parallel.
[0008]
On the other hand, as shown in FIG. 11, a slide member 14 having a concave holding portion 14 a that opposes both guide pipes 13 is attached to the upper portion of the pump casing 11 on the side of the communication pipe 9. The pump casing 11 can be moved up and down in a state where the holding portion 14a is fitted to the pair of guide pipes 13.
[0009]
Then, when the pump casing 11 is lowered along the guide pipe 13, at the lowered end position, the one end opening portion 11a of the pump casing 11 and the opening portion 9a of the communication pipe 9 facing the opening portion 11a are formed. It is automatically connected to the communication state, and the axial flow pump is automatically connected to the opening 9a in the communication state.
[0010]
In addition, a chain connector 15 to which a hanging chain (not shown) for raising and lowering operations is connected is provided at an appropriate position on the upper portion of the pump casing 11.
[0011]
When maintenance is performed such as when a foreign object is clogged, a failure occurs, or during periodic inspections, the suspension casing is lifted to raise the pump casing 11 on which the axial flow pump is mounted, along the guide pipes 13. The pump casing 11 can be removed when the slide member 14 is disengaged upward from the upper end of the shaft, and predetermined maintenance can be performed.
[0012]
Further, when the pump casing 11 including the axial flow pump is mounted after maintenance or the like, the holding portion 14a of the slide member 14 is aligned with the upper end portion of each guide pipe 13 as shown in FIG. If the lowering operation is performed in this state, the holding portions 14a are fitted to the respective guide pipes 13 from above, and thereafter, the pump casing 11 is operated to be lowered under the slide guides by the respective guide pipes 13.
[0013]
And when it arrives at a descent | fall end position, the opening part 11a of the pump casing 11 and the opening part 9a of the communicating pipe 9 are automatically connected by the automatic connection function, and an initial installation state is obtained.
[0014]
As a water channel opening / closing gate provided with the pump as described above, for example, there are those disclosed in Japanese Patent Application Laid-Open Nos. 2002-121730 and 2002-129539.
[0015]
[Problems to be solved by the invention]
However, according to the conventional pump device, when the pump, that is, the pump casing 11, is mounted on the gate door body 8, it is necessary to accurately align the holding portion 14 a of the slide member 14 and each guide pipe 13. Yes, the alignment work was troublesome.
[0016]
In addition, when the pump casing 11 is mounted after recovery from clogging of foreign matter or the like, the water level in the water channel 1 increases and the water level rises to the upper part of the gate door body 8 in many cases. It is submerged.
[0017]
Therefore, when the pump casing 11 is to be mounted, the guide pipe 13 is sought from the submerged guide holder 12, and the slide member 14 of the pump casing 11 is placed along the drain or the operator puts his hand in the sewage. The work efficiency was poor and it was troublesome.
[0018]
In view of the above problems, an object of the present invention is to provide a pump device in which the pump can be easily and efficiently installed even when the water is full.
[0019]
[Means for Solving the Problems]
The technical means for achieving the above object comprises a pump capable of moving up and down via a slide member fitted from above so as to be sandwiched from the outside with respect to two guide pipes erected in parallel. In the pump apparatus in which the pump is automatically connected in communication with the opening facing the lower end position of the pump, the distance between the outer sides of each guide pipe is the same as that of the guide pipe and is the same diameter. Ru near the point where the fitting guide body which is shaped to gradually approaching toward the upper direction is provided.
Also, the fitting guide member may be connected by freely manner detachable on top of the two guide pipes.
[0020]
Further, the fitting guide body includes a pair of fitting guide rods respectively connected to the upper portions of the respective guide pipes, and curved portions that are curved inward toward each other are provided at upper ends of the respective fitting guide rods. It is good also as a structure.
[0021]
Further, the fitting guide body is composed of a pair of fitting guide rods respectively connected to the upper portions of the respective guide pipes. It is good also as a structure provided with the respectively inclined guide surface which inclines.
[0022]
In addition, the fitting guide body may be formed in a substantially U shape, and may be configured by fitting guide rods whose both ends are respectively connected to the upper portions of the guide pipes.
[0023]
Further, the pump can be moved up and down along the guide pipe attached to the water channel opening and closing gate, and can be automatically connected to the opening provided in the water channel opening and closing gate at the lower end position of the pump. It is good also as the structure currently made.
[0024]
The pump can be moved up and down along the guide pipe attached in the tank, and can be automatically connected to the opening of the discharge pipe installed in the tank at the lower end position of the pump. It is good also as a structure.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component as the above-mentioned.
[0026]
That is, FIG. 1 thru | or 4 has shown the pump gate 3 concerning this embodiment, and is provided in the middle of the drainage path which leads to the river 2 from the water channel 1 like the above.
[0027]
The pump gate 3 includes a gate door body 8 configured in a rectangular shape so as to open and close the drainage path so that the drainage path can be opened and closed. A tube 9 is provided.
[0028]
Further, flap valves 6 are swingably attached to the opening portions of the respective communication pipes 9 on the river 2 side, and an axial flow pump 17 as an example of a pump is provided in the opening portion 9a on the water channel 1 side. A cylindrical pump casing 11 mounted inside is detachably connected to each other.
[0029]
The two guide pipes 13 have a predetermined interval between the upper surface portion of each communicating tube 9 on the opening 9a side and each guide holder 12 mounted on the upper portion of the gate door main body 8 above. And are set up in parallel.
[0030]
Further, as shown in FIG. 11, a slide member 14 provided with an opposing concave holding portion 14a for holding both guide pipes 13 from outside as shown in FIG. The pump casing 11 is configured to be movable up and down along the vertical direction in a state where the holding portion 14a is fitted to the pair of guide pipes 13.
[0031]
Then, when the pump casing 11 is lowered along the guide pipe 13, at the lowered end position, the one end opening portion 11a of the pump casing 11 and the opening portion 9a of the communication pipe 9 facing the opening portion 11a are formed. It is automatically connected to the communication state, and the axial flow pump is automatically connected to the opening 9a in the communication state.
[0032]
In addition, a chain connector 15 to which a hanging chain (not shown) for raising and lowering operations is connected is provided at an appropriate position on the upper portion of the pump casing 11.
[0033]
The guide holder 12 includes a base plate portion 12a that is detachably attached and fixed to the gate door body 8 with bolts, a support piece portion 12b that is erected and fixed to the surface of the base plate portion 12a by welding or the like, and a support piece portion 12b. It is composed of a pair of cylindrical pipe support cylinders 12c having a predetermined interval on both sides of the tip and having an axial center in the vertical direction and fixed by welding or the like.
[0034]
Each pipe support cylinder 12c has an outer diameter that is substantially the same as or slightly smaller than the inner diameter of the guide pipe 13, and is fixed to the support piece 12b at the middle in the vertical direction as shown in FIG. As shown in the figure, each guide pipe 13 is held by fixing the base plate portion 12a to the gate door body 8 with the lower protruding portion of each pipe support tube 12c fitted into the upper end of each guide pipe 13. ing.
[0035]
In the present embodiment, a fitting guide rod 18 as a fitting guide body is further provided. The fitting guide rod 18 is a pipe having the same diameter as the guide pipe 13 and an appropriate length. It is set as the structure bent in the shape of a character, The both ends can be fitted in the upper protrusion part of each pipe support cylinder 12c so that attachment or detachment is possible.
[0036]
The present embodiment is configured as described above. For example, the axial pump 17 is mounted by pulling up the suspension chain in the same manner as in the past at the time of maintenance such as clogging of foreign matter, failure, and periodic inspection. The pump casing 11 is lifted along each guide pipe 13, and the pump casing 11 can be removed when the slide member 14 is detached upward from the upper end of the guide pipe 13, so that predetermined maintenance can be performed.
[0037]
When the pump casing 11 is removed from the gate door main body 8, both ends of the fitting guide rods 18 are fitted into the pipe support cylinders 12c located above the guide pipes 13, respectively. As shown in FIG. 4, the fitting guide rod 18 is attached to the guide holder 12.
[0038]
When the pump casing 11 having the axial flow pump 17 is mounted after maintenance or the like, the holding portion 14a of the slide member 14 provided in the pump casing 11 is substantially positioned above the upper end portion of the fitting guide rod 18. If the lowering operation is performed in the combined state, the upper end portion of the fitting guide rod 18 has an arc shape and the distance between the outer sides of both sides gradually approaches upward, so there is a slight misalignment. However, the fitting guide rod 18 relatively enters between the holding portions 14a, and thereafter, the holding portions 14a are guided down along the outer side surfaces on both sides of the fitting guide rod 18, and the guide pipes 13 and the holding portions 14a are held. The pump casing 11 is lowered by sliding with the guide pipes 13 in a state where the holding portion 14a is naturally aligned.
[0039]
And when it arrives at a descent | fall end position, the opening part 11a of the pump casing 11 and the opening part 9a of the communicating pipe 9 are automatically connected by the automatic connection function, and an initial installation state is obtained.
[0040]
As described above, according to the present embodiment, when the pump casing 11 is mounted, the self-aligning can be performed automatically by the fitting guide rod 18 so that the guide pipes 13 and the holding portions 14a of the slide member 14 can be aligned. The function can be exerted, strict alignment is not required, the work efficiency can be improved, and there is an advantage that it can be easily mounted even when the operator works with a crane or the like from a slightly distant point.
[0041]
Further, even when the guide holder 12 is submerged when the water is full or the like, the upper portion of the fitting guide rod 18 protrudes above the water surface. From this point, the mounting operation of the axial flow pump 17 can be easily performed, and the work efficiency is improved. Can be planned.
[0042]
Furthermore, there is an advantage that it can be applied to the pump gate 3 having the conventional structure just by manufacturing the fitting guide rod 18 and can be provided at low cost.
[0043]
Further, since the fitting guide rod 18 is structured to be detachable from the guide holder 12, it is possible to effectively prevent the generation of noise due to vibration or the like when the axial flow pump 17 is driven by removing the fitting guide rod 18 in the normal state.
[0044]
In addition, although the structure which can attach or detach the fitting guide rod 18 with respect to each pipe support cylinder 12c is shown, the structure which equips the upper part of each guide pipe 13 with the fitting guide rod 18 integrally.
[0045]
FIG. 5 shows a second embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0046]
That is, in the present embodiment, the fitting guide body is composed of a pair of fitting guide rods 20 having the same diameter and the appropriate length as the guide pipe 13, and facing each other at the upper ends of the fitting guide rods 20. Each of the curved portions 20a is provided as an integral or separate body. Other structures are the same as those in the first embodiment.
[0047]
Then, each fitting guide rod 20 is fitted to the upper projecting portion of each pipe support cylinder 12c so as to be freely detachable, thereby exhibiting a function of automatically aligning the holding portion 14a of the slide member 14 with both curved portions 20a. To do.
[0048]
Therefore, the present embodiment has the same effect as the first embodiment.
[0049]
FIG. 6 shows a third embodiment, and the same components as those of the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0050]
That is, in this embodiment, instead of the curved portion 20a in the second embodiment, inclined guides that incline inward toward each other on the outer side surface at the upper end portion of each fitting guide rod 20. A structure is provided in which inclined blocks 20c each having a surface 20b are mounted. Other structures are the same as those in the second embodiment.
[0051]
Then, by fitting each fitting guide rod 20 to the upper protruding portion of each pipe support cylinder 12c so as to be freely detachable, the function of automatically aligning the holding portion 14a of the slide member 14 with both inclined guide surfaces 20b is provided. Demonstrate.
[0052]
Therefore, the present embodiment has the same effect as the first embodiment.
[0053]
In addition, the curved part of the upper end part of the fitting guide rod 18 in the first embodiment may be formed as a separate body and attached as in the third embodiment.
[0054]
In the second embodiment and the third embodiment, each fitting guide rod 20 may be integrally provided on the upper portion of each guide pipe 13.
[0055]
7 and 8 show a fourth embodiment, which shows a structure applied to a drainage pump device 30 for manholes and residential drainage.
[0056]
That is, a pre-swirl tank 32 is provided at the bottom of the sewage tank 31 in the drainage pump device 30, and the pre-swirl tank 32 is divided into a sewage storage area 34 on one side and a pre-swivel area 35 on the other side by a weir part 33, A circular recess 36 is provided in the pre-swivel area 35, and a water conduit 37 that gradually descends and slopes from the dirty water storage area 34 to the recess 36 is provided.
[0057]
Further, on one side of the pre-swivel area 35, a connection discharge pipe 40 is attached and fixed on the support base 39, and a discharge pipe 41 connected to an external discharge pipe outside the sewage tank 31 at one end of the connection discharge pipe 40. Is connected.
[0058]
On both sides of the other end of the connecting discharge pipe 40, a pair of guide pipes 42 are fixed upright in the vertical direction as a parallel shape having a predetermined interval.
[0059]
The holding portion of the slide member 44 provided at the discharge port of the submersible pump 43 supported by being suspended by a suspension chain or the like is fitted into both guide pipes 42 so as to be sandwiched from the outside. Under the slide guide of each guide pipe 42, the submersible pump 43 is configured so as to be lifted and lowered along the vertical direction.
[0060]
Further, when the submersible pump 43 is lowered along the guide pipe 13, the outlet of the submersible pump 43 and the opening of the connecting discharge pipe 40 facing the outlet are automatically set at the lower end position. It is set as the structure connected to a communication state. As a mechanism that is automatically detached by such a lowering operation, various structures are known as disclosed in Japanese Patent No. 2883258, Japanese Utility Model Publication No. 7-12712, Japanese Patent Laid-Open No. 11-141492, and the like. It may be adopted as appropriate.
[0061]
Further, the suction port 45 of the submersible pump 43 is configured to be inserted into the recess 36 in a connected state between the submersible pump 43 side and the connecting discharge pipe 40 side.
[0062]
And the upper end part of each guide pipe 42 is hold | maintained by the guide holder 46 of a structure substantially the same as the said 1st Embodiment. That is, a pair of cylindrical pipe support cylinders that can be fitted into the respective guide pipes 42 are provided at the front end of the guide holder 46, and the lower protruding portion of each pipe support cylinder is fitted into the upper end of each guide pipe 42. Is held in the state.
[0063]
A fitting guide rod 47 bent in a substantially U shape having the same structure as the fitting guide rod 18 is detachably fitted to the upper projecting portion of each pipe support tube.
[0064]
In addition, in this embodiment, it is set as the drainage pump apparatus 30 of the system by which a pair of submersible pump 43 is operated alternately, The recessed part 36 in which the suction inlet 45 of each submersible pump 43 is inserted is formed, respectively, and both recessed parts are formed. A partition wall 48 is formed which is located between the partitions 36 and partitions the pre-swivel area 35.
[0065]
Therefore, also in this embodiment, when the submersible pump 43 is installed after maintenance or the like, the self-aligning function can automatically align the guide pipes 42 and the holding portions of the slide members 44 by the fitting guide rods 47 when the submersible pump 43 is mounted. The first implementation is such that it is not necessary to perform precise alignment, improves work efficiency, and can be easily mounted even when the operator works with a crane or the like from a slightly remote location. There is an effect similar to the form.
[0066]
In addition, it may replace with the fitting guide rod 47 in this embodiment, and may employ | adopt the structure of the fitting guide rod 20 shown by 2nd Embodiment or 3rd Embodiment, The same effect also in this case Is obtained.
[0067]
In each of the above embodiments, the structure adopted for the pump device used for forced drainage to rivers, manhole pumping stations, sewage treatment plants, etc. is disclosed, but it was used for forced removal of agricultural water, countermeasures against inundation, etc. A pump apparatus may be sufficient and it is not limited to the thing of embodiment.
[0068]
【The invention's effect】
As described above, according to the pump device of the present invention, the guide pipe is provided with the fitting guide body in which the distance between the outer sides gradually approaches upward in the upper part of each guide pipe. When the pump is installed, the self-aligning function that automatically aligns each guide pipe with the slide member can be demonstrated by the fitting guide body, and strict alignment is not necessary. Even if it exists, there exists an advantage which can mount | wear a pump easily and can aim at the improvement of work efficiency.
[0069]
The fitting guide body is composed of a pair of fitting guide rods respectively connected to the upper portions of the respective guide pipes, and curved portions that are curved inward toward each other are provided at the upper end portions of the respective fitting guide rods. And the fitting guide body is composed of a pair of fitting guide rods respectively connected to the upper portions of the respective guide pipes. The structure provided with the inclining guide surfaces inclined inward, and the fitting guide body are formed in a substantially U shape, and both ends thereof are connected to the upper part of each guide pipe, respectively. The same effect as described above can be obtained with a structure made of
[0070]
Furthermore, the pump can be moved up and down along a guide pipe attached to the water channel opening and closing gate, and can be automatically connected to an opening provided in the water channel opening and closing gate at the lower end position of the pump. The pump device and pump can be moved up and down along a guide pipe installed in the tank, and can be automatically connected to the opening of the discharge pipe installed in the tank at the lower end position of the pump. The same effect as described above can also be obtained in the pump device.
[Brief description of the drawings]
FIG. 1 is a perspective view of a pump gate showing a first embodiment of the present invention.
FIG. 2 is an explanatory view of assembly of the main part.
FIG. 3 is a side view of the pump gate when the pump casing is mounted.
FIG. 4 is an explanatory side view of a pump gate in a pump casing mounted state.
FIG. 5 is an explanatory diagram of main part assembly showing a second embodiment.
FIG. 6 is a partial cross-sectional front view of a fitting guide rod showing a third embodiment.
FIG. 7 is a sectional front view of a drainage pump device showing a fourth embodiment.
FIG. 8 is a plan view of the pre-rotation tank portion.
FIG. 9 is a longitudinal sectional view showing an example of installation of a conventional pump gate.
FIG. 10 is an enlarged side view of the pump gate.
11 is an enlarged sectional view taken along line XI-XI in FIG.
FIG. 12 is a front view showing an upper mounting portion of the guide pipe.
13 is a cross-sectional view taken along line XIII-XIII in FIG.
FIG. 14 is a side explanatory view of the pump gate when the pump casing is mounted.
[Explanation of symbols]
3 Pump gate 8 Gate door body 9 Communication pipe 9a Opening 11 Pump casing 11a Opening 12 Guide holder 12a Substrate 12b Supporting piece 12c Pipe support cylinder 13 Guide pipe 14 Slide member 14a Holding part 17 Axial pump 18 Fitting Guide rod 20 Fitting guide rod 20a Curved portion 20b Inclined guide surface 30 Drainage pump device 31 Sewage tank 40 Connection discharge pipe 42 Guide pipe 43 Submersible pump 44 Slide member 46 Guide holder 47 Fitting guide rod

Claims (7)

A pump that can be raised and lowered via a slide member fitted from above so as to be sandwiched from the outside with respect to the two guide pipes erected in parallel, with respect to the opening facing the lower end position of the pump In the pump device in which the pump is automatically connected to the communication state,
The pump device according to claim 1, wherein a fitting guide body having the same diameter as the guide pipe and a shape in which a distance between the outer sides gradually approaches upward is provided at an upper portion of each guide pipe.   The pump device according to claim 1, wherein the fitting guide body is detachably connected to upper portions of the two guide pipes.   The fitting guide body includes a pair of fitting guide rods respectively connected to the upper portions of the guide pipes, and curved portions that are curved inward toward each other are provided at the upper ends of the fitting guide rods. The pump device according to claim 1, wherein the pump device is provided.   The fitting guide body is composed of a pair of fitting guide rods respectively connected to the upper portions of the guide pipes, and each outer surface at the upper end portion of each fitting guide rod is inclined inward toward each other upward. The pump device according to claim 1, further comprising an inclined guide surface.   The said fitting guide body is formed in the substantially U shape, and consists of the fitting guide rod which the both ends are connected with the upper part of each said guide pipe, respectively. Pump device.   The pump can be moved up and down along the guide pipe attached to the water channel opening and closing gate, and can be automatically connected to the opening provided in the water channel opening and closing gate at the lower end position of the pump. The pump device according to any one of claims 1 to 5, wherein the pump device is provided.   The pump can be moved up and down along the guide pipe attached in the tank, and can be automatically connected to the opening of the discharge pipe installed in the tank at the lower end position of the pump. The pump device according to any one of claims 1 to 5, wherein

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