WO2009139441A1

WO2009139441A1 - Pumping apparatus

Info

Publication number: WO2009139441A1
Application number: PCT/JP2009/058994
Authority: WO
Inventors: 守太田
Original assignee: 株式会社オオタ総合設備
Priority date: 2008-05-14
Filing date: 2009-05-14
Publication date: 2009-11-19
Also published as: JP4249246B1; JP2009275565A

Abstract

Disclosed is a non‑powered pumping apparatus with high lift and a high pump discharge rate. Water flowing in a water pipe (20) flows in a direction to close a hydraulic valve (60). When water flows into the valve opening (61), subjecting the valve cover (63) to the kinetic energy of the water flow and rotating it to close the valve opening (61) and close the valve chamber, the kinetic energy of the water flow is converted into substantial impact energy, generating water‑hammering action. A valve cover opening regulator (50) regulates the force with which a coil spring (54) elastically energizes a core shaft (53) by changing the positions where a wing nut (55b) and a nut (55c) are threaded into a threaded groove (55a) to adjust an adjuster (55), while the position of a core shaft tip (53a) is changed.

Description

Pumping equipment

The present invention relates to a non-powered pumping device using a water hammer.

A non-powered water wheel is a means of pumping water from rivers and irrigation canals, but the head is low and the pumping volume is low.
On the other hand, a pump using power requires a power supply facility and an internal combustion engine (drive engine).
In Patent Document 1, in a water hammer pump, a water guide pipe having a water guide valve for preventing backflow, a water intake pipe, a rise and fall valve, and an elastic body that transmits an external force in a direction to open when the rise and fall pipe is closed. There is disclosed an automatic water pump provided with an external force adding device having an air reservoir and a buffer tank having an air reservoir at the top and a water supply pipe below the air reservoir.

Patent Document 2 discloses a pumping device that puts a water pipe into a water flow and pumps water with a second on-off valve using the water hammer action of the first on-off valve. According to this pumping device, by providing an inclined part formed by bending upward so as to form an upward gradient toward the downstream side in the water pipe flow path downstream from the intake pipe standing position of the water pipe, The first on-off valve and the second on-off valve are alternately closed and opened by the pressure of the water flowing into the water pipe, and water is intermittently discharged from the tip of the water intake pipe.

In Patent Document 3, the water guide pipe and the pump chamber are each divided into a plurality of compartments, and drainage valves and pumping valves corresponding to the plurality of compartments are installed, and the valve closing timings of the respective drainage valves are different. In addition, a pumping device is disclosed that is configured by shifting the start-up cycle of each drain valve and providing the angle adjustment tool for adjusting the opening of the raising / lowering valve on the raising / lowering valve so that the water can be pushed up to a high position by the water hammer action. It was.
JP 2001-82398 A Japanese Patent No. 3801430 JP-A-8-247100

Even if the water guide valve that resumes or stops the opening and closing of the raising / lowering valve described in Patent Document 1 can operate or stop the automatic pump, the reverse flow of the water flow in the process of actually operating the pump Can not be suppressed.
In the pumping device disclosed in Patent Document 2, the downstream end opening provided with the first on-off valve must have an upward slope toward the downstream side. Therefore, the head is not enough and the amount of pumping is insufficient.
The angle adjuster disclosed in Patent Document 3 merely has a function of adjusting the angle of the valve lid, and does not have a function of improving the head of the pumping device.
That is, the above-described conventional pumping device has an insufficient head, the installation location may be limited, and the amount of pumping is insufficient. Moreover, it has been difficult to suppress the flow that attempts to flow backward upstream when the valve lid is closed while securing the water guiding portion.
The present invention has been made in view of the above-described problems in the prior art, and an object thereof is to provide a non-powered pumping device having a high head and a large pumping amount.

A pumping device according to the present invention includes a water conduit arranged in running water, and a water intake pipe standing and communicating with the water supply pipe, and the water supply pipe is water hammered downstream of a communicating portion with the water intake pipe. The water hammer valve has a valve lid that opens and closes in response to water hammer from running water, and a resilient device that generates an elastic repulsive force in a direction to open when the valve lid is closed. Features.

The water guide pipe is arranged in the running water of a river or an irrigation channel, and water is poured into the water guide pipe.
In this case, the upstream side may be dammed to create a drop between the downstream side and the drop may be used to pass water through the water conduit.

The water flow flowing through the conduit has a large kinetic energy.
If a valve chamber is provided to block this flow, and a water hammer valve pivotally supported at one end is attached so that the valve chamber can be opened and closed, the valve lid of the water hammer valve is blocked by the water flow. Works.
When the valve lid comes to a position blocking the valve chamber, the rotation of the valve lid stops at that time, so that the kinetic energy associated with the water flow appears as a water hammer phenomenon also called a water hammer.

When the kinetic energy of the water stream is converted into impact energy in this way, it becomes large impact energy and pushes the water stream back to the upstream side.
The instantaneous pushing back force generated in this way allows water to be drawn up for flowing into the intake pipe.
In addition, when the water flows into the intake pipe due to the momentary push-back force, a backflow prevention plate is provided which is upstream from the communicating part of the water guide pipe with the intake pipe and protrudes downward from the inner upper part of the pipe. The water flow is effectively guided to the water vertical pipe. This backflow prevention plate is provided with the tip inclined to the downstream direction with respect to the water flowing in the water conduit and protruding in the oblique downstream direction, so that dust stays on the upstream side of the backflow prevention plate and accumulates. Can be prevented.
A water hammer valve is attached to the valve chamber pipe, and this valve chamber pipe is detachably attached to the downstream end portion of the water guide pipe, so that the valve chamber pipe provided with the water hammer valve can be replaced. Maintenance such as handling, parts replacement and repair can be simplified.

When the water is momentarily pushed back to the upstream side by impact energy generated in the valve lid, negative pressure is generated on the upstream side surface (outer side surface) of the valve lid, so that the valve lid turns in the opening direction. However, in the pumping device of the present invention, since the elastic device is attached so that an elastic repulsive force is generated in the opening direction when the valve lid is closed, the large amount generated when the water flow is blocked by the valve lid. Part of the impact energy is converted into a resilient force, and the valve lid is quickly opened by this resilient force.

By utilizing this elastic force, the valve lid opens clearly faster than the valve lid opens due to its own weight.
When the valve lid is opened, the valve chamber is imitated, so that the water flow flows downstream and kinetic energy is generated again.
When kinetic energy that naturally flows in the downstream direction is generated, the valve lid pivots along the flow of water to close the valve chamber, and a water hammer is generated.
By this repetition, water can be pumped even without a power source such as a power source or an engine.

The valve lid opens quickly due to the resilience, but if it opens too much, it may take time to close again along the water flow, so the water hammer valve is a valve lid for the direction of flowing water when the valve lid is opened. It is preferable to have a valve lid opening angle adjuster for adjusting the opening angle of the valve lid.
The opening angle of the valve lid is adjusted in consideration of the flowing water speed and the amount of water flow within a range where the outer surface of the valve lid does not open more than the angle at which the outer surface of the valve lid is parallel to the water flow.

When a spring is attached so that a spring force (elastic repulsive force) is generated in the direction in which the valve lid closes, this valve lid opening angle adjuster is closed in the opposite direction immediately after the valve lid is fully opened. Since a resilience is generated, it is more preferable because it acts to close quickly along the water flow.
This valve lid opening angle adjuster has an axial core whose tip end is in contact with the inner wall of the water conduit, and the shaft core is adjustable in the protruding position of the tip end and is elastically biased in the protruding direction. In this case, an elastic repulsive force can be generated when the tip of the shaft core comes into contact with the inner wall of the water conduit.

In order to continuously feed the water that has flowed into the intake pipe due to the water hammer action, the intake pipe is provided with a check valve in the middle of the flow path, and is connected to a water storage tank having an air chamber at the top, It is preferable that a water pipe for sending water from the lower side of the air chamber of the water storage tank is connected.

In the pumping device according to the present invention, the opening and closing operation of the valve lid becomes rapid because a part of the impact energy due to the water flow when the valve lid closes the valve chamber is converted into the direction in which the valve lid is opened by the elastic device. The amount of pumping is large and the head is also higher than before.

When a valve lid opening angle adjuster for adjusting the valve lid opening angle is installed, the valve lid is adapted to correspond to the amount of water flowing through the water conduit or to the drop of water at the location where the pump is installed. It is possible to improve the pumping efficiency by adjusting the opening angle.
In addition, if a resilient tool is attached so that a resilient force is generated when the valve lid is closed or opened, the opening / closing impact of the valve lid is absorbed and durability is improved.

Also, if a backflow prevention plate is provided in the water guide pipe and the backflow water flow caused by the water hammer action is guided to the water vertical pipe, the utilization efficiency of the water hammer action becomes high and the pumping efficiency can be improved.

FIG. 1 is an explanatory view of a pumping device 10 according to the present invention, and shows the vicinity of a water conduit 20 in a cross section in a state where the pumping device 10 is disposed in a water channel 1.
The pumping device 10 is installed in a water guide pipe 20 that is inclined and communicated with a water intake pipe 70.
A check valve 71 that allows water in the water intake pipe 70 to pass only upward is provided in the pipe line of the water intake pipe 70.

The upstream end portion 22 of the water conduit 20 penetrates the dam portion 2 provided in the water channel 1, and the water 3 blocked by the dam portion 2 is caused to flow into the water conduit 20 from the water inlet 23 of the upstream end portion 22. Then, it is made to flow toward the water hammer valve 60 disposed at the downstream end 24 by an inclination.
The water hammer valve 60 is provided in the valve chamber 30 disposed inside the downstream end 24 of the water conduit 20.
The water guide pipe 20 causes the water on the upstream side to flow toward the water hammer valve 60 provided on the downstream side of the communication pipe 70 with the head in the water guide pipe 20 or on the upstream side of the water guide pipe 20. It is sufficient that the water blocked by the dam portion 2 is not necessarily flowed.

FIG. 2 shows an enlarged explanatory view in the vicinity of the valve chamber 30.
The valve chamber 30 is connected to a tubular valve chamber pipe 31 so as to be inserted into the downstream end 24 of the water guide pipe 20, and a water hammer valve 60 is provided at the upstream end of the valve chamber pipe 31.
As a result, the water hammer valve 60 is opened and closed by using the kinetic energy of the water flowing through the water conduit 20.

The water hammer valve 60 is provided with a valve port 61 such that an upstream end of the valve chamber pipe 31 is opened obliquely downward with respect to the water flow direction, and a valve cover is provided on a downstream edge of the valve port 61 by a valve support shaft 62. 63 is provided so that the valve lid 63 opens by its own weight.
The valve support shaft 62 is provided in a direction perpendicular to the water flow direction so that the valve lid 63 pivots along the water flow and opens and closes.
The swivel range of the valve lid 63 is restricted to a range that is closer to the valve port 61 than the valve support shaft 62 in the water flow direction.
Thereby, kinetic energy due to the water flow is applied to the valve lid outer surface 63 a, and the water flow causes the valve lid 63 to pivot in the direction of closing the valve port 61, so that the valve lid 63 is pressed against the valve port 61.

As will be described later, the pumping device 10 causes the water hammer effect by closing the water hammer valve 60 with the kinetic energy of the water flowing into the water guide pipe 20.
The pushing-back force generated by the water hammer action guides water from the water guide pipe 20 into the water intake pipe 70.
A check valve 71 is provided in the middle of the intake pipe, and the water that has passed through the check valve 71 is held above the check valve 71 as it is.

The pumping device 10 feeds water into the intake pipe 70 and pumps it up by repeating the opening and closing operation of the water hammer valve 60 by this water hammer action.
A reverse flow prevention plate 80 is provided on the inner wall on the upstream side in the vicinity of the intake pipe 70 of the water conduit 20 so as to protrude obliquely downstream toward the water flow. This backflow prevention plate 80 is provided with its tip skewed in the downstream direction, not in the direction perpendicular to the water flowing in the water conduit 20. This prevents dust from accumulating and accumulating on the upstream side surface of the backflow prevention plate 80.

FIG. 5 is an explanatory view of the backflow prevention plate 80 viewed from the water hammer valve 60 side.
The backflow prevention plate 80 receives a water flow that flows back upstream due to a water hammer effect by closing the water hammer valve 60 and guides it to the intake pipe 70.
The water rising through the intake pipe 70 through the check valve 71 is accumulated in the water storage tank 72.
The water 3a accumulated in the water storage tank 72 compresses the air 4 in the water storage tank 72, so that the water 3a in the water storage tank 72 is lower than the air chamber portion by the pressure of the air 4 from the air chamber portion. The water is continuously fed through the water pipe 73.

In the vicinity of the upper and lower limit positions of the swivel range in which the valve lid 63 of the water hammer valve 60 opens and closes, a spring 40 for applying an elastic repulsive force to the valve lid 63 to switch the opening and closing direction of the valve lid 63 A valve lid opening angle adjuster 50 is provided.
The valve lid opening angle adjuster 50 is also provided with a resilient tool, and when the valve lid 63 opens and reaches the maximum position in the opening range, an elastic repulsive force is applied to the valve lid 63 to thereby provide a valve lid. 63 quickly changes the turning direction.

The bullet member 40 is attached to the iron socket 25 provided in the water conduit 20 through the water conduit 20 and the valve chamber tube 31.
When the valve lid 63 is swung in the closing direction and is close to the closed end that closes the valve port 61, the elastic device 40 contacts the inner surface 63 b of the valve lid. Then, an elastic repulsive force is applied in a direction opposite to the turning direction in which the valve lid 63 is closed while being in contact with the valve lid inner surface 63b.

FIG. 3 is an enlarged explanatory view of the bulleting tool 40.
The elastic tool 40 has a joint part 41 for attaching to the water conduit 20 and a elastic shaft part 42 for generating an elastic repulsive force.
The joint portion 41 is provided with

male screw portions

41a and 41b at both ends, and is provided with a through hole 41c that penetrates both male screw portions, and one male screw portion 41a is screwed into the iron socket 25 and attached to the water conduit 20 It is.

The elastic shaft portion 42 includes a shaft core 43 that is brought into contact with the valve lid 63, a coil spring 44 that elastically urges the shaft core 43, an adjustment portion 45 that receives the elastic urging force applied to the shaft core 43 in an adjustable manner, and a cap nut. 46.
The shaft core 43 is provided with a spring stop 43b made of a clip ring or the like at the tip end portion 43a of the shaft core through the through hole 41c of the joint portion 41, and the shaft core is interposed between the spring stop 43b and the male screw portion 41a on the iron socket 25 side. A coil spring 44 is attached through 43, and is elastically biased so as to protrude toward the tip side by the elastic force of the coil spring 44.

On the outside of the shaft core 43, there are provided an adjustment portion 45 comprising a screw groove 45a and a screw 45b screwed into the screw groove 45a in a double nut state and a nut 45c.
The shaft core 43 is positioned by pressing the nut 45c of the adjusting portion 45 with the elastic biasing force of the coil spring 44 against the cap nut 46 screwed through the shaft core 43 to the male screw portion 41b outside the joint portion 41.

An O-ring 46a for water stop is disposed between the cap nut 46 and the male screw portion 41b.
When the valve lid 63 closes the valve port 61, the elastic member 40 has its axial tip 43a abutted against the inner surface 63b of the valve lid 63 and compresses the coil spring 44 as shown in FIG. The shaft core 43 is retracted along the through hole 41 c of the joint portion 41.
When the valve lid 63 performs the opening operation after the valve lid 63 closes the valve port 61, the shaft core 43 pushes the inner side surface 63b of the valve lid 63 with the tip 43a by the elastic restoring force of the coil spring 44. Thus, the opening operation of the valve lid 63 is assisted.

For example, as shown in FIG. 3 (c), the spring tool 40 changes the position of the shaft tip 43a while changing the position of the screw 45b and the nut 45c into the thread groove 45a. The force that elastically biases the shaft core 43 can be adjusted.
As a result, the elastic repulsive force applied to the valve lid 63 can be adjusted to adjust the valve lid operation, or the position at which the valve lid 63 switches the turning direction from the closing direction to the opening direction can be adjusted.
Since the adjustment part 45 is provided so that it may be exposed to the outer side of the pumping apparatus 10 as shown in FIG. 1, the adjustment corresponding to the water amount change of the water channel 1 can be performed, for example.

The valve lid opening angle adjuster 50 is attached to a female screw portion 63 c provided on the valve lid 63 so as to penetrate the valve lid 63.
When the valve lid opening angle adjuster 50 turns in the opening direction of the valve lid 63 and reaches the vicinity of the maximum opening end that opens the valve port 61, the shaft tip 53 a comes into contact with the inner wall 21 of the conduit pipe, and the valve lid An elastic repulsive force in a closing direction is applied to 63 to assist the operation of closing the valve after the valve lid 63 is fully opened.

FIG. 4 shows an enlarged explanatory view of the valve lid opening angle adjuster 50.
The valve lid opening angle adjuster 50 has a joint portion 51 for attaching to the valve lid 63 and a resilient shaft portion 52 for generating an elastic repulsive force.
The joint portion 51 is provided with

male screw portions

51 a and 51 b at both ends, and is provided with a through hole 51 c that penetrates both male screw portions, and one male screw portion 51 a is screwed into the female screw portion 63 c of the valve lid 63. It is.

The elastic shaft portion 52 includes a shaft core 53 that is brought into contact with the water guide tube inner wall 21, a coil spring 54 that elastically biases the shaft core 53, an adjustment portion 55, a cap nut 56, and a coil spring 57.
The shaft core 53 is provided with a spring stopper 53b at the shaft core tip 53a through the through hole 51c of the joint portion 51, and a coil spring 54 is attached between the spring stopper 53b and the male screw portion 51a on the valve lid 63 side through the shaft core 53. Thus, the coil spring 54 is elastically biased so as to protrude toward the distal end side by the elastic force of the coil spring 54.

Further, on the outer side of the shaft core 53, there is provided an adjustment portion 55 including a screw groove 55a and a screw 55b screwed into the screw groove 55a in a double nut state and a nut 55c.
The shaft core 53 has a nut 55 c of the adjustment portion 55 connected to the cap spring 54 via a coil spring 57 that passes through the shaft core 53 to a cap nut 56 that is screwed through the shaft core 53 to the male thread portion 51 b outside the joint portion 51. It is positioned by pressing with an elastic biasing force.
The coil spring 57 prevents the adjustment portion 55 from loosening while absorbing an impact associated with opening and closing of the valve lid 63.

An O-ring 56a for water stop is disposed between the cap nut 56 and the male screw portion 51b.
The valve lid opening angle adjuster 50 compresses the coil spring 54 as shown in FIG. 4B by causing the shaft core tip 53a to abut against the inner conduit wall 21 when the valve lid 63 reaches the maximum opening position. The shaft core 53 is retracted along the through hole 51 c of the joint portion 51.
After the valve lid 63 reaches the maximum opening position, when the valve lid 63 performs a closing operation under the pressure of the water flow, the shaft core 53 moves the inner wall 21 of the conduit pipe at the tip 53a by the elastic restoring force of the coil spring 54. It projects so as to push, and assists the closing operation of the valve lid 63.

For example, as shown in FIG. 4 (c), the valve lid opening angle adjuster 50 adjusts the adjusting portion 55 by changing the screwing position of the thumb screw 55b and the nut 55c into the screw groove 55a. The force with which the coil spring 54 elastically biases the shaft core 53 can be adjusted while changing the position of 53a.
Accordingly, the valve repulsion force applied to the valve lid 63 can be adjusted to adjust the valve lid operation, or the opening angle can be adjusted by changing the position where the valve lid 63 switches the turning direction from the opening direction to the closing direction.
Since the adjustment unit 55 is provided inside the pumping device 10 as shown in FIG. 1, for example, by adjusting in advance according to the drop of water at the installation location, the opening of the valve lid can be used to efficiently pump water. The amount can be adjusted.
The valve chamber 30 to which the above-described elastic device 40 and the valve lid opening angle adjusting device 50 are attached has a tubular valve chamber tube 31 as a replaceable part, inside the downstream end portion 24 of the water guide tube 20 to the downstream end portion 24. It is installed so that it can be swallowed.
When removing the valve chamber 30, the threaded tool 40 is removed from the water conduit 20 by releasing the screwing of the male screw portion 41 a of the resilient tool 40 in the iron socket 25. The valve lid opening angle adjuster 50 is removed by releasing the screwing of the female screw portion 63c of the valve lid 63 with the male screw portion 51a of the joint portion 51 of the valve lid opening angle adjuster 50.
In this state, the fastening at the fastening portion 90 with respect to the downstream end 24 of the water guide pipe 20 at the rear end of the valve chamber pipe 31 is released, and the valve chamber pipe 31 is detached from the inside of the downstream end 24 of the water guide pipe 20.

FIG. 6 is an explanatory view of the opening / closing operation of the water hammer valve of the pumping device 10.
The water flowing in the water conduit 20 flows in the direction of closing the water hammer valve 60 as shown in FIG.
When water flows into the valve port 61 and the valve lid 63 receives the force of water flow (kinetic energy) and turns to close the valve port 61 to close the valve chamber as shown in FIG. Energy is converted into large impact energy, causing water hammer effect.
Thereby, the water near the upstream side of the water hammer valve 60 is pushed back in the upstream direction.

The backflow prevention plate 80 is provided so as to protrude toward the downstream side at a position upstream from the water standpipe 70 with respect to the water flow that flows back by the water hammer action, so that the backflow prevention plate 80 is efficiently provided. The water flow is guided into the water intake and the water is raised into the intake pipe 70.
As shown in FIG. 6 (a), the backflow prevention plate 80 is projected obliquely downstream from the upper part on the inner side of the pipe while ensuring a downstream water guide portion.
In the intake pipe 70, water rises through the check valve 71, but the check valve does not return water to the water conduit.
In addition to its own weight, the valve lid 63 is opened with the aid of the elastic repelling force of the elastic tool 40 so that it opens quickly.

The opening range of the valve lid 63 is adjusted by the valve lid opening angle adjuster 50, and the impact of opening the valve lid 63 is absorbed by elastic contact.
When the valve lid 63 is opened, water flows again to the water hammer valve 60, and as a result, the valve lid 63 is swung so as to be closed by the force of the water flow as shown in FIG. 6 (a), as shown in FIG. 6 (b). A water hammer occurs and water is poured into the intake pipe 70.
Again, the operation of opening the valve is repeated as shown in FIG.
The water pumping device 10 pumps up water with this water hammer energy.
When the amount of water flowing into the water guide pipe 20 is changed, by adjusting the elastic repulsion force of the elastic tool 40, the opening / closing operation of the valve lid 63 can be adjusted to improve the pumping efficiency.

FIG. 7 shows an explanatory view of a state where the pumping device 10 is installed in the water channel 1 and pumped.
FIG. 7A shows the vicinity of the water pipe 73, and FIG. 7B shows the vicinity of the water inlet 23.
The pumping device 10 dams the water 3 flowing through the water channel 1 by the dam portion 2, causes water to flow from the water inlet 23 of the water conduit 20 into the water conduit 20, and feeds the water 3 b pumped up by the water hammer effect. Water is supplied at 73.
The water guide pipe 20 is easy to install if the water hammer side part provided with the water pipe 73 and the water inflow side part provided with the water inlet 23 are divided and connected by the water pipe joint part 20a.

It is sectional drawing of one Embodiment of the water pumping apparatus which concerns on this invention. It is a partially expanded sectional view of the pumping apparatus of embodiment shown in FIG. It is a partial expanded sectional view of the pumping apparatus of embodiment shown in FIG. It is the other partial expanded sectional view of the pumping apparatus of embodiment shown in FIG. FIG. 1 is a sectional view taken along line VV. It is operation | movement explanatory drawing of the pumping apparatus of embodiment shown in FIG. It is a perspective view which shows the usage condition of the pumping apparatus of embodiment shown in FIG.

DESCRIPTION OF SYMBOLS 1 ... Waterway, 2 ... Damping part, 3 ... Water, 3a ... Water in a water storage tank, 3b ... Pumped water, 4 ... Air chamber, 10 ... Pumping device , 20 ... water guide pipe, 20a ... water guide pipe joint part, 21 ... water guide pipe inner wall, 22 ... upstream end of the water guide pipe, 23 ... water inlet, 24 ... water guide pipe Downstream end, 25 ... Iron socket, 30 ... Valve chamber, 31 ... Valve chamber tube, 40 ... Blasting tool, 41 ... Joint, 41a, 41b ... Male thread 41c ... through hole, 42 ... ballistic shaft, 43 ... shaft core, 43a ... shaft core tip, 43b ... spring stopper, 44 ... coil spring, 45 ... Adjustment part, 45a ... thread groove, 45b ... thumbscrew, 45c ... nut, 46 ... cap nut, 46a ... O-ring, 50 ... valve lid opening angle adjuster 51 ... Joint part, 51a, 51b ... Male thread part, 51c ... Through-hole, 52 ... Bullet shaft part, 53 ... Shaft core, 53a ... Shaft core tip part, 53b・・・ Spring stop, 54 ・・・ Coil spring, 55 ・・・ Adjustment part, 55a ・・・ Screw groove, 55b ・・・ Hinged screw, 55c ・・・ Nut, 56 ・・・ But nut, 56a ... O-ring, 57 ... Coil spring, 60 ... Water hammer valve, 61 ... Valve port, 62 ... Valve support shaft, 63 ... Valve lid, 63a ... Valve lid outer surface, 63b ..Valve inner surface, 63c ... Valve screw female thread part, 70 ... Water intake pipe, 71 ... Check valve, 72 ... Water storage tank, 73 ... Water supply pipe, 80 -Backflow prevention plate, 90 ... fastening part.

Claims

A water guide pipe arranged in running water and a water intake pipe standing and communicating with the water supply pipe. The water supply pipe has a water hammer valve on the downstream side of the communicating portion with the water intake pipe, Has a valve lid that opens and closes in response to a water hammer from running water, and a spring device that generates an elastic repelling force in a direction to open when the valve lid is closed.
The water hammer valve according to claim 1, further comprising a valve lid opening angle adjuster for adjusting an opening angle of the valve lid with respect to a flow direction of flowing water when the valve lid is opened. apparatus.
The valve lid opening angle adjuster has an axial core whose tip end is in contact with the inner wall of the water conduit, and the shaft core is adjustable in the protruding position of the tip end and elastically biased in the protruding direction. The pumping device according to claim 2, wherein an elastic repulsive force is generated when the tip of the shaft core comes into contact with the inner wall of the water guide pipe.
The water pumping device according to claim 1, wherein the water guide pipe has a backflow prevention plate that is upstream of the communicating portion with the water intake vertical pipe and protrudes downward from the inner upper part of the pipe. .
6. The pumping device according to claim 5, wherein the backflow prevention plate is provided with the tip inclined to the downstream direction with respect to the water flowing in the water guide pipe and protruding in the oblique downstream direction.
The water pumping device according to any one of claims 1 to 5, wherein a water hammer valve is attached to the valve chamber pipe, and the valve chamber pipe is detachably attached to a downstream end portion of the water guide pipe.