WO2007010912A1

WO2007010912A1 - Suction pump

Info

Publication number: WO2007010912A1
Application number: PCT/JP2006/314219
Authority: WO
Inventors: Masao Yamada
Original assignee: Yugen Kaisha Asahikoumuten; Miyairi, Kenichiro
Priority date: 2005-07-20
Filing date: 2006-07-19
Publication date: 2007-01-25
Also published as: JPWO2007010912A1; JP5022219B2

Abstract

A suction pump capable of pumping up a liquid to a high position even if used manually by increasing a pump discharge efficiency for pumping up the liquid. The suction pump (10) comprises a hollow outer tube (20) having a suction port (23) and a discharge port (24) and a hollow reciprocating rod (30) reciprocatingly inserted into the outer tube. A clearance for passing water therein is formed between the inner surface of the outer tube and the outer surface of the reciprocating rod. Where the inner diameter of the outer tube (20) is D and the outer diameter of the reciprocating rod (30) is d, the suction pump is set to fulfill the requirement of 0.95D ≥ d ≥ 0.3D. Furthermore, the reciprocating rod (30) of the suction pump (10) is set to have a specific gravity as small as within the range of 0.9 to 0.3 so that a buoyancy can be added to the reciprocating rod (30) by the liquid flowing into the clearance for passing water therein.

Description

Specification

Pump

Technical field

[0001] The present invention relates to a pumping pump that can reduce the force required to pull up liquid by using buoyancy together. More specifically, the present invention relates to a pump that increases pumping efficiency when pumping mainly by human power. The present invention also relates to a pump that is configured to be portable by dividing or connecting the pump.

Background art

[0002] A variety of pumping pumps for pumping water from wells, rivers, ponds, etc. have been proposed and put into practical use. The pumps that are usually used are roughly classified into electric types that use an electric motor as a power source and manual types that use human power. Since electric pumps generally use a power source, there is a problem that they cannot be used when a power failure occurs during a disaster. In addition, manual pumping pumps require a considerable amount of force during pumping, so it is often difficult to use for children and elderly people. There were problems such as small height and limited use location.

[0003] In view of this, the applicant of Patent No. 3457301 (Patent Document 1), a reciprocating outer tube having a hollow structure having a suction port and a discharge port, and a reciprocating reciprocating passage inside the outer tube. We proposed a pump that is composed of a rod and has a structure that has a gap for water passage between the inner surface of the outer tube and the outer surface of the reciprocating rod. This pumping pump is constructed so that the reciprocating rod is inserted into the hollow outer tube, so that buoyancy is generated in the reciprocating rod. It has the characteristics that can be pumped up. In addition, since the pump is simple in construction, the pump itself can be reduced in weight, so that it has a feature that it can be easily carried.

Patent Document 1: Japanese Patent No. 3457301

Disclosure of the invention

Problems to be solved by the invention [0004] When pumping up a liquid such as water to a height of about 3 m, the pumping pump can pump up with a slight force due to the buoyancy generated in the return rod. However, when pumping liquid beyond that height, when lifting the reciprocating rod, it can be pumped with a slight force by buoyancy, but when lowering the reciprocating rod, it must be pressed against buoyancy. Naranare. For this reason, the operating force varies greatly depending on the direction of operation of the reciprocating rod, and there is a problem that the pump operation is actually difficult to use with human power. Further, as described above, if the cross-sectional area of the reciprocating rod is made smaller than the internal cross-sectional area of the outer tube, and a gap for water passage is formed between the inner surface of the outer tube and the outer surface of the reciprocating rod. If so, the liquid can be pumped up. However, when the height at which the liquid was pumped up, that is, the pumping height was increased, the amount of pumped liquid gradually decreased, and eventually it became impossible to pump up.

[0005] In addition, since the pumping pump has different pumping heights depending on the place of use, pump lengths required by customers vary, so dozens of types of pumps are manufactured and stored as inventory. There was a problem that had to be done. In addition, the pumping pump is lightweight and may be carried to the place of use. However, when the pumping pump is long, there is a problem that it is difficult to convey. In addition, the user had the problem of having to prepare multiple pumping pumps with different lengths suitable for the pumping height when using at multiple locations with different pumping heights.

[0006] The present invention has been made to solve the above-described problems. First, the pumping efficiency for pumping up the liquid is improved, and the liquid can be pumped up even when used manually. It is to provide a pumping pump that can be used. The second is to facilitate the reciprocating operation of the reciprocating bar while obtaining the necessary buoyancy during pumping. The third is to provide an inexpensive manual pump that has a simple configuration and can be provided at low cost. The fourth is to provide a simple manual pump at a low cost that allows the pumping height to be changed to enable portable use.

Means for solving the problem

[0007] In order to solve the above-described problem, a pumping pump according to the invention of claim 1 has a hollow outer tube having a suction port and a discharge port, and is reciprocally inserted into the outer tube. A reciprocating rod, a suction valve provided in the vicinity of the suction port, and a lower end of the reciprocating rod And a discharge valve provided at the upper part of the piston having a suction hole provided in the section, and the cross-sectional area of the reciprocating rod is made smaller than the internal cross-sectional area of the outer pipe to reciprocate the inner surface of the outer pipe A pump having a structure in which a water passage is formed between the outer surface of the rod and a liquid is interposed in the gap, where the inner diameter of the outer tube is D and the outer diameter of the reciprocating rod is d. The gist is that the ratio of 0.995D≥d≥0.3D is set.

[0008] Also, in the invention of claim 2, in the invention of claim 1, the reciprocating range of the reciprocating rod is set to a range of 0.1 to 1. Om with respect to the inside of the outer tube. Is the gist.

[0009] Further, the invention according to claim 3 is summarized in that, in the invention of claim 1 or 2, the period of the reciprocating rod for reciprocating the inside of the outer tube is 0.3 to 5 cycles / second. Yes.

[0010] Furthermore, the gist of the invention described in claim 4 is that, in the invention of claim 1, the specific gravity of the return rod in the liquid is set to 0.9 to 0.3.

[0011] Further, the pumping pump according to the invention of claim 5 is the invention according to claim 1, 2, 3 or 4, wherein the outer tube having a hollow structure having a suction port and a discharge port, and the inside of the outer tube A reciprocating rod having a hollow structure inserted in a reciprocating manner, and having a gap for water passage between the inner surface of the outer tube and the outer surface of the reciprocating rod. In addition, a connecting portion is provided on each of the inlet side and the outlet side, and at least one extension outer tube is connected between the connecting portions, and the reciprocating bar is connected to the inlet side and the outlet side, respectively. At least one extended reciprocating rod is connected between the connecting portions, a piston having a suction hole, and a lower end portion of the reciprocating rod provided with a discharge valve at an upper portion thereof are connected to the outer tube. The extended outer tube so as to be arranged on the suction port side of the Les As summarized in that to set the length of the extension reciprocating rod, Ru.

[0012] Further, in the invention according to claim 6, the reciprocating rod having a hollow structure closes an upper end portion and closes the connecting portion with respect to the water passage gap, thereby The gist is that buoyancy is applied to the reciprocating rod by the liquid in the gap.

[0013] Further, in the invention according to claim 7, a plurality of outlets are provided at arbitrary locations on the outer pipe and the extended outer pipe, and each of the outlets is provided with water stop means, and the reciprocating rod In addition, when the liquid is pumped up by the reciprocating motion of the extension reciprocating rod, the gist is to open one of the water stop means to discharge the liquid. The invention's effect

[0014] According to the pumping pump of the present invention, not only the liquid is pumped to a high place with a slight force, but also the outer tube and the structure of the inner tube that is reciprocally inserted into the outer tube are specified. In addition, the pumping efficiency can be improved, and high heads can be pumped up in the event of a disaster or where no power source is available.

[0015] Furthermore, by setting the relationship between the inner diameter D of the outer tube and the outer diameter d of the reciprocating rod to a ratio of 0.95D≥d≥0.3D, the liquid can be pumped to a high place with a slight force. Pumping efficiency can be increased. As a result, the liquid can be pumped up to a high place with a predetermined pumping amount, and can be used in a wide range of applications.

[0016] Further, when the reciprocating rod is reciprocated within the range of 0.1 to: 1. Om with respect to the outer tube, it can be used by human power, and the liquid can be recirculated by reciprocating within this range. High pumping power S

[0017] Furthermore, by setting the specific gravity of the reciprocating rod passed through the outer tube to 0.9 to 0.3, the buoyancy of the reciprocating rod is appropriately adjusted even when the reciprocating rod is lowered. Adjusted. For this reason, the pressing force when lowering the reciprocating rod can be reduced, the pumping operation by human power becomes easy, and the pumping efficiency can be further increased.

[0018] Further, according to the pump according to the present invention, not only the liquid is pumped to a high place with a slight force, but also each of the outer tube and the hollow reciprocating rod that is reciprocally passed through the outer tube. Since the connecting portion is provided, it can be divided into short pieces and carried. In addition, it is possible to connect to the pumping height according to the conditions of the place of use. Therefore, it can be quickly pumped up in the event of a disaster or where no power source is available. Furthermore, it is no longer necessary to have many different lengths of inventory, and manufacturing costs and inventory management costs can be reduced. Furthermore, the user can change the length appropriately according to the place of use, and the pump can be used at many places.

[0019] In addition, the force required to pull up the reciprocating bar can be continuously reduced by the buoyancy generated by forming the reciprocating bar and the extended reciprocating bar connected thereto with a hollow structure. Thereby, it is possible to easily pump the liquid to a high place only by human power.

[0020] Further, the liquid drawn up by providing a plurality of outlets in the outer tube and the extended outer tube. The degree of freedom of the discharge height can be increased. At this time, by providing a water stoppage with a valve or the like at each discharge port, it becomes possible to discharge the liquid pumped from any discharge port.

[0021] Further, since the structure can be simplified, the labor required for production can be reduced, and handling during transportation and use can be facilitated.

Brief Description of Drawings

FIG. 1 is a sectional view showing a structure of a pumping pump according to the present invention.

2 is a cross-sectional view showing an outer tube and a reciprocating rod of the pumping pump shown in FIG.

FIG. 3 is a cross-sectional view showing first adjusting means for adjusting the specific gravity of the reciprocating rod.

FIG. 4 is a cross-sectional view showing second adjusting means for adjusting the specific gravity of the reciprocating rod.

FIG. 5 is a graph showing the relationship between the pumping height and the ratio between the outer pipe and the reciprocating rod of the pump according to the present invention.

FIG. 6 is a graph showing the relationship between the reciprocating bar and the underwater height of the pump according to the present invention.

FIG. ₇ is a cross-sectional view showing the structure of a connectable pumping pump according to the present invention.

FIG. 8 is an explanatory view showing a modification of the outer pipe connecting portion and the reciprocating rod connecting portion of the pumping pump shown in FIG.

FIG. 9 is a cross-sectional view of a principal part showing a third embodiment of the pumping pump according to the present invention.

FIG. 10 is a cross-sectional view showing a conventional manual pumping pump.

Explanation of symbols

[0023] 10 pump

20 outer pipe

21 Outer pipe connection

22 Extension outer pipe

23 Suction mouth

24 Outlet

28 Suction valve

30 reciprocating bar

31 Buoyancy adjuster 32 communication hole

33 Hand Nore

34 Piston

36 fittings

38 Exhaust valve

41 Reciprocating bar joint

42 Extension reciprocating rod

D Inner diameter of outer tube

d Outer diameter of reciprocating rod

BEST MODE FOR CARRYING OUT THE INVENTION

[0024] The pump is composed of a hollow outer tube having a suction port and a discharge port, and a hollow reciprocating rod that is reciprocally passed through the outer tube. It has a structure having a gap for water passage between the outer surface of the rods. The outer pipe of this pump is provided with a discharge port.

[0025] Further, this pumping pump is set to a ratio of 0.95D≥d≥0.3D, where D is the inner diameter of the outer tube and d is the outer diameter of the reciprocating rod. Furthermore, the return rod of the pump is set to have a small specific gravity in the range of 0.9 to 0.3, and is configured so that buoyancy is added to the reciprocating rod by the liquid entering the gap for water flow. ing.

[0026] Furthermore, the reciprocating rod is reciprocated within the range of 0.1 to: 1. Om with respect to the outer tube, thereby pumping up the liquid. At this time, the reciprocating rod reciprocates at a cycle of 0.3 to 5 cycles / second in order to pump up efficiently.

[0027] The pump is composed of a hollow outer tube having a suction port and a discharge port, and a reciprocating rod having a hollow structure that is reciprocally inserted into the outer tube. The inner surface of the outer tube and the above-described reciprocating rod It has a structure having a gap for water passage between the outer surface. The outer pipe of this pump is provided with connecting portions on the suction port side and the discharge port side, and at least one extended outer tube is connected between the connecting portions. The reciprocating bar is provided with a connecting portion on each of the suction port side and the discharge port side, and at least one extended reciprocating rod is connected between the connecting portions. In addition, a piston with a suction hole and a spout at the top The lengths of the extended outer tube and the extended reciprocating rod are set so that the lower end portion of the reciprocating rod provided with the check valve is disposed on the suction port side of the outer tube.

[0028] Further, in the pump, the upper end of the hollow reciprocating rod is closed, and the connecting portion is closed with respect to the water gap. Then, buoyancy is applied to the hollow reciprocating rod by the liquid that has entered the gap for water flow.

[0029] Further, the pumping pump is provided with a plurality of discharge ports at arbitrary locations on the outer tube and the extended outer tube. Each of these outlets is provided with water stop means. When the liquid is pumped up by the reciprocating operation of the reciprocating bar and the extending reciprocating bar, the liquid is discharged by opening only one water stop means.

Example 1

[0030] An embodiment of a pumping pump according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing the structure of the pump. The pumping pump 10 has a double structure in which an outer tube 20 having a hollow structure and a reciprocating rod 30 having a size capable of reciprocating inside the outer tube are contained inside. The outer tube 20 has a suction port 23, a discharge port 24, and a reed rod inlet 26 of a reciprocating rod 30, and the suction port 23 is provided with a suction valve 28 and a suction valve 28.

[0031] The reciprocating rod 30 in the pumping pump 10 has a piston 34 attached to the tip thereof via an attachment 36. The piston 34 is formed in a disc shape, and the piston diameter is set slightly smaller than the inner diameter of the outer tube 20 so as to ensure a clearance as a clearance for smooth operation when reciprocating inside the outer tube 20. Has been. In addition, a suction hole 40 slightly smaller than the size of the discharge valve 38 is provided in the central portion of the piston 34. The attachment 36 is a force for supporting the piston 34. The liquid that has passed through the suction hole 40 passes through the discharge valve and further communicates with the gap between the outer tube 20 and the reciprocating rod 30. It has a function.

Next, the suction valve 28 and the discharge valve 38 in the pumping pump 10 are configured to open and close by the up and down movement of the return rod 30. In the process of pulling up the reciprocating rod 30 upward, the discharge valve 38 is closed by inertia, and the space formed between the piston 34 and the suction valve 28 is decompressed, so that the suction valve 28 is opened. At the same time, the liquid is sucked up from the suction port 23. Then in the process of pushing down the reciprocating rod 30 Then, the liquid filled between the piston 34 and the suction valve 28 is compressed, whereby the suction valve 28 is closed and the discharge valve 38 is opened, so that the liquid is pumped up on the upper part of the piston 34. By repeatedly raising and lowering the reciprocating rod 30 in this manner, the liquid that has passed through the fitting 36 is pumped into the gap between the outer tube 20, the reciprocating rod 30, and the extended reciprocating rod, and eventually. The liquid is discharged from the outlet 24.

[0033] When the handle 33 of the pumping pump 10 configured as described above is reciprocated up and down and the reciprocating rod 30 is reciprocated, the liquid is given to the piston 34 and the discharge valve 38 as the liquid is sucked up from the suction port 23. The liquid weight increases. However, since the force reciprocating rod 30 has a hollow structure, buoyancy is generated in the reciprocating rod 30 when immersed in the liquid. Therefore, this buoyancy reduces the lifting force of the handle 33 required for pumping. As described above, in order to generate buoyancy in the reciprocating rod 30, at least the upper end of the reciprocating rod 30 is closed in the normal use state. The reciprocating rod 30 may be sealed by closing both the upper and lower ends.

[0034] When the reciprocating motion of the handle 33 of the pump is continued and the reciprocating rod 30 is reciprocated, the weight of the liquid gradually increases as the pumping height increases. However, the force S and the volume immersed in the reciprocating rod 30 increase, so the buoyancy increases further. For this reason, even if there is a large difference in water head to the position to be pumped, the effect of reducing the force required for pumping will continue, and it will be possible to pump the liquid with a small amount of human power.

Such a pump is capable of pumping up if the hydrostatic level of the liquid to be pumped is at least above the suction valve 28. For this reason, the pumping pump described above does not require priming water, and pumping can be performed only by immersing the suction valve 28 in the liquid. Therefore, it can be used directly without any pre-preparation when it is carried to the place of use, and the liquid pumping operation can be speeded up.

[0036] In the pumping pump 10 having the above constituent forces, the ratio of 0.95D≥d≥0.3D is set, where D is the inner diameter of the outer tube 20 and d is the outer diameter of the reciprocating rod 30. That is, as shown in FIG. 2, the outer diameter d of the reciprocating rod 30 is reduced from 0.95 to 0.3 times the inner diameter D of the outer tube 20.

[0037] When pumping a predetermined amount of liquid manually, the handle 33 of the pump is raised. The reciprocating rod 30 is reciprocated several times by reciprocating downward. At this time, although there are variations depending on the person who pumps, on average, either the lifting force or the pushing force of the handle 33 is limited to 10 kg. In addition, the pumping pump 10 must be set to a practically usable pumping height of 30 m or more. Therefore, in the human limit and the actual use state, the pumping height as the pumping pump 10 is 30 m or more, and the reciprocating rod 30 can be continuously reciprocated.

[0038] Under the above conditions, as shown in FIG. 5, when the relationship between the inner diameter D of the outer tube 20 and the outer diameter d of the reciprocating rod 30 is 0.95D≥d≥0.3D, it is practically used. It turned out to be possible. That is, when the outer diameter d of the reciprocating rod 30 is 0.95 times or more the inner diameter D of the outer tube 20, the volume of the gap between the outer tube 20 and the reciprocating rod 30 becomes small, and the liquid flows. It is not pumped up and the pumping height does not reach 30m. In addition, when the outer diameter d of the reciprocating rod 30 is less than 0.3 times the inner diameter D of the outer pipe 20, the weight of the liquid in the gap increases and the liquid cannot be pumped, and the pumping height reaches 30 m. Nare ,.

In the above description, the outer diameter d of the reciprocating rod 30 and the inner diameter D of the outer tube 20 are shown as examples. However, as shown in FIG. Of course, the outer cross-sectional area B may be replaced. Further, it goes without saying that the cross-sectional shapes of the reciprocating rod 30 and the outer tube 20 are not limited to a circle but may be equivalent to a polygon such as a quadrangle.

On the other hand, in the above-described reciprocating rod 30, when the reciprocating rod 30 has a hollow pipe structure and air is sealed in the inner diameter b shown in FIG. The buoyancy F received by the return rod 30 is proportional to the volume of liquid discharged by the outer cross-sectional area B of the reciprocating rod 30. Therefore, the buoyancy F depends on the cross-sectional area ratio of the outer tube 30 and the reciprocating rod 30 and the specific gravity of the reciprocating rod 30. Is different. In particular, even if the inner diameter of the outer pipe 20 is the same, changing the cross-sectional area of the reciprocating rod 30 changes the suction height limit and pumping efficiency. Incidentally, the outer cross-sectional area B force M of the reciprocating rod 30 is large, and the suction height is lowered and the buoyancy F is reduced, and the weight of the liquid in the outer tube 20 is increased. Power is required and efficiency is reduced. When the outer cross-sectional area B of the reciprocating rod 30 increases, the suction height increases and the buoyancy F increases, and the weight of the liquid in the outer tube 30 decreases. It becomes necessary and becomes inefficient. For this reason, the actual use of human power As a condition of use, there is a power that can not be endured, that is S.

[0041] From the above, in order to give an appropriate buoyancy F to the reciprocating rod 30 in actual use, it was investigated that the specific gravity of the reciprocating rod 30 is 0.9 to 0.3. That is, when the specific gravity of the reciprocating rod 30 is 0.9 or more, the buoyancy F received by the reciprocating rod 30 becomes small, and a large force is required to lift the handle, resulting in poor efficiency. In addition, when the specific gravity of the reciprocating rod 30 is less than 0.3, the buoyancy F received by the reciprocating rod 30 is increased, and the force T required for pumping is reduced. Therefore, a large force T is required and the efficiency is deteriorated.

[0042] As described above, the buoyancy F received by the reciprocating rod 30 is proportional to the volume of liquid discharged by the outer cross-sectional area B of the reciprocating rod 30. This force depends on the pumping height of the pump 10, that is, the height of the water column existing in the gap between the outer tube 20 and the reciprocating rod 30, as shown by the two-dot chain line in FIG. 6. Buoyancy F increases proportionally. Therefore, if the pumping height is about 10m or more, the push-down force of the handle 33 will exceed the limit of 10kg, making it unusable to use with human power. Because of these forces, as shown by the solid line in FIG. 6, the specific gravity of the reciprocating rod 30 is changed according to the height of the water column so that the change in the buoyancy F received by the reciprocating rod 30 with the water column height is almost constant. It is desirable. Incidentally, when the water column height is small, the specific gravity of the return rod 30 is set to be small, and when the water column height is large, the specific gravity of the reciprocating rod 30 is set to be large.

FIG. 3 shows a first adjusting means for adjusting the specific gravity of the reciprocating rod 30. A buoyancy adjuster 31 is interposed at an appropriate position in the reciprocating rod 30, and a communication hole 32 is formed on the piston 34 side of the reciprocating rod 30. Thus, the liquid enters the reciprocating rod 30 up to the buoyancy adjusting body 31, and the buoyancy during this period is greatly reduced. A through hole 35 is formed in the vicinity of the lower part of the buoyancy adjuster 31 so that the liquid enters the buoyancy adjuster 31 so as to communicate with the inside of the gap. Further, the buoyancy is generated above the buoyancy adjusting body 31 by sealing the inside of the reciprocating rod 30. As described above, by appropriately setting the installation position of the buoyancy adjusting body 31, the buoyancy of the reciprocating rod 30 can be adjusted appropriately.

FIG. 4 shows a second adjusting means for adjusting the specific gravity of the reciprocating rod 30. That is, the reciprocating rod 30 itself is formed of a solid rod having a specific gravity of 0.9 or less. Like this It is possible to adjust the buoyancy appropriately by changing the material of the return rod 30 having an appropriate specific gravity.

[0045] As the buoyancy adjusting means, in addition, a rod having an appropriate length having a specific gravity of 0.9 or less is inserted into the tube of the hollow structure reciprocating rod 30 to adjust the buoyancy of the reciprocating rod 30. It is also possible. It is also possible to adjust the buoyancy appropriately by changing the hollow reciprocating rod 30 itself to a material having a large specific gravity such as a metal material. Further, the buoyancy may be adjusted by filling the hollow reciprocating rod 30 with a filler having a large specific gravity.

The pumping efficiency of the pumping pump 10 configured as described above is affected by the reciprocating range of the reciprocating rod 30 and the cycle of reciprocating the reciprocating rod 30. In other words, the range in which the reciprocating rod 30 is reciprocated is limited in actual use with actual human power. At this time, the reciprocating range of the reciprocating rod 30 relative to the inside of the outer tube 20 is preferably 0.:! To 1. Om. When the reciprocating movement range is less than 0.1 lm, the efficiency decreases as the amount of liquid due to wicking decreases. When the reciprocating movement range is more than 1 · Om, the movement range is too large and deviates from the actual use condition by human power.

On the other hand, the cycle of the reciprocating rod 30 that reciprocates inside the outer tube 20 is set to 0.3 to 5 cycles / second. When the cycle of the reciprocating rod 30 is 0.3 cycles / second or less, the liquid sucked into the gap is small, so it is pressed by the atmospheric pressure, and it becomes difficult to suck it further. I can't. In addition, when the cycle of the reciprocating rod 30 is 5 cycles Z seconds or more, the moving speed of the reciprocating rod 30 is high, so that cavity is generated in the liquid on the piston 34 side, and the pumping efficiency is deteriorated. Therefore, in order to obtain a predetermined pumping efficiency, the cycle of the reciprocating rod 30 is preferably set to 0.3 to 5 cycles / second.

[0048] The pumping pump according to the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the present invention. For example, the discharge valve provided in the piston may be changed to a ball made of a material such as glass or metal in addition to the tongue-shaped valve. Of course, the length and outer diameter of the outer pipe, the extended outer pipe, the reciprocating bar, and the extended reciprocating bar of the pump are variously changed. In addition, it is possible to use a structure to obtain the efficiency and pumping height that can be pumped by human power. Power May be used.

Example 2

[0049] Embodiments of a pumping pump according to the present invention will be described in detail with reference to the drawings.

FIG. 7 is a sectional view showing the structure of a pumping pump that can be connected. The pumping pump 10 has a double structure in which a hollow outer tube 20 and a reciprocating rod 30 of a size capable of reciprocating inside the outer tube are inserted. The outer tube 20 has a suction port 23, a discharge port 24, and a reciprocating rod insertion port 26. The suction port 23 is provided with a suction valve 28 and a suction valve 28.

In such a pumping pump 10, the outer pipe 20 is provided with connecting portions 21 on the suction port 23 side and the discharge port 24 side, and at least one extended outer pipe is provided between the connecting portions 21. 22 are connected. The reciprocating bar 30 is provided with connecting portions 41 on the suction port 23 side and the discharge port 24 side, and at least one extended reciprocating rod 42 is connected between the connecting portions 41.

[0051] Further, a handle 33 for reciprocating the reciprocating rod 30 is provided on the upper end side of the reciprocating rod 30 located on the discharge port 24 side of the outer tube 20, and located on the suction port 23 side of the outer tube 20 On the lower end side, a piston 34 having an outer diameter slightly smaller than the inner diameter of the outer tube 20 is disposed via an attachment 36. Further, the piston 34 is provided with a discharge valve 38.

[0052] The outer tube 20, the reciprocating rod 30, the extended outer tube 22, and the extended reciprocating rod 42 described above are lightweight, can be freely selected in length, and can be easily processed. Metal tubes such as niobium can be used. In addition, when the pumping height is increased by connecting the extended outer tube 22 and the extended reciprocating rod 42, or when the pump is used at high temperatures, to prevent damage to the device due to deformation, It is desirable to use metal tubes such as aluminum when pumping various liquids.

On the other hand, the connecting portion 21 that connects the outer tube 20 and the extended outer tube 22 is connected by forming a screw thread at each end and screwing. Further, the connecting portion 41 that connects the reciprocating rod 30 and the extended reciprocating rod 42 is also connected by forming a screw thread at each end and screwing. At this time, if the lengths of the extended outer tube 22 and the extended reciprocating rod 42 are made the same, the outer tube 20, the handle 33 and the piston 34 can be kept in a predetermined positional relationship. As this connecting means, as shown in FIG. 8 (A), a pipe 50 serving as a socket is attached to the outside of the connecting portion 21 that connects the outer pipe 20 and the extended outer pipe 22, and one of the outer pipe 20 The other end can be connected by inserting the extension outer tube 22 and tightening it with screws 51. Further, as shown in FIG. 8 (B), both ends of the pipe 50 serving as a socket may be fixed by rubber rings 52. Further, as shown in FIG. 8 (C), the connecting portion 41 that connects the reciprocating rod 30 and the extended reciprocating rod 42 is joined by a pin 54 through a plug 53 provided to close the reciprocating rod 30. Even so, good. A hollow ring may be used instead of the stopper 53 above. Thus, according to the connection method shown in FIG. 8, the manufacturing process of providing a screw thread can be omitted, and processing can be facilitated.

[0055] The outer tube 20, the reciprocating rod 30, the extended outer tube 22, and the extended reciprocating rod 42 are set to individual lengths of, for example, about 0.5m to 5m in consideration of carrying the pump. A pumping pump having a length of up to about 40 m can be configured by connecting a plurality of extension outer tubes 22 and extension reciprocating rods 42 in accordance with use conditions. The length of this pumping pump means the height at which pumping is possible, and according to the pumping experiment, it has been confirmed that the pumping up to about 40m in vertical height. When the pump is inclined at a predetermined angle, the total length of the pump is further increased.

[0056] Next, the reciprocating bar 30 in the pumping pump will be described in detail. A piston 34 is attached to the front end of the reciprocating rod 30 via an attachment 36. The piston 34 is formed in a disc shape, and the piston diameter is set slightly smaller than the inner diameter of the outer tube 20 so as to secure a clearance as a clearance in order to facilitate the operation when reciprocating inside the outer tube 20. It has been. In addition, a suction hole 40 slightly smaller than the size of the discharge valve 38 is provided in the center of the piston 34. The attachment 36 has a function for supporting the piston 34, and the liquid passing through the suction hole 40 passes through the discharge valve and further communicates with the gap between the outer tube 20 and the reciprocating rod 30. .

[0057] Further, the suction valve 28 and the discharge valve 38 in the pumping pump will be described in detail. The suction valve 28 and the discharge valve 38 are each configured to be opened and closed by the vertical movement of the reciprocating rod 30. In the stroke of lifting the reciprocating rod 30 upward, the discharge valve 38 is closed by inertia, and the space formed between the piston 34 and the suction valve 28 is depressurized. As a result, the suction valve 28 is opened and the liquid is sucked up from the suction port 23. Subsequently, in the process of pushing down the reciprocating rod 30, the liquid filled between the piston 34 and the suction valve 28 is compressed, so that the suction valve 28 is closed and the discharge valve 38 is opened, and the liquid is pumped up to the upper part of the piston 34. It is done. By repeatedly raising and lowering the reciprocating rod 30 in this way, the liquid that has passed through the fitting 36 is transferred to the gap between the outer tube 20 and the extended outer tube 22 and the reciprocating rod 30 and the extended reciprocating rod 42. The liquid is pumped up and eventually the liquid is discharged from the outlet 24.

[0058] When the handle 33 of the pumping pump configured as described above is reciprocated up and down and the reciprocating rod 30 is reciprocated, the liquid supplied to the piston 34 and the discharge valve 38 as the liquid is sucked up from the suction port 23. Increases in weight. However, since the reciprocating rod 30 and the extended reciprocating rod 42 are formed in a hollow structure, buoyancy is generated in the reciprocating rod 30 and the extended reciprocating rod 42 when immersed in the liquid. Therefore, this buoyancy reduces the lifting force of the handle 33 required for pumping. Thus, in order to generate buoyancy in the reciprocating rod 30 and the extended reciprocating rod 42, at least the upper end of the reciprocating rod 30 or the upper end of the extended reciprocating rod 42 is closed in the normal use state. The reciprocating rod 30 and the extended reciprocating rod 42 may be sealed by closing both the upper and lower ends.

[0059] If the reciprocating motion of the handle 33 of the pumping pump is continued and the reciprocating rod 30 is reciprocated, the weight of the liquid gradually increases as the pumping height increases. However, since the volume immersed in the force reciprocating rod 30 and the extended reciprocating rod 42 is increased, the buoyancy is further increased. For this reason, even if there is a large difference in water head to the position to be pumped, the effect of reducing the force required for pumping will continue, and it will be possible to pump the liquid with a small amount of human power.

Such a pumping pump is capable of pumping if the hydrostatic level of the liquid to be pumped is at least above the suction valve 28. For this reason, the pumping pump described above does not require priming water, and pumping can be performed only by immersing the suction valve 28 in the liquid. Therefore, it can be used directly without any pre-preparation when it is carried to the place of use, and the liquid pumping operation can be speeded up.

Example 3

[0061] Fig. 9 shows an example in which a plurality of discharge ports of the pump are arranged. Ie In the pump, the pumped liquid can be discharged from the discharge port 24 if the discharge port 24 is provided at a position lower than the height of the soot inlet 26 of the reciprocating rod 30. Therefore, as shown in FIG. 9, a plurality of valves serving as outlets can be provided at different heights.

[0062] The pumping pump shown in FIG. 9 is provided with three valve forces composed of a first valve 60, a second valve 61, and a third valve 63, each having a different height. . Among these, the first valve 60 on the upper end side is disposed in the outer pipe 20, and the second valve 61 and the third valve 63 are disposed in the extended outer pipes 64 and 65, respectively. It is installed. These extended outer pipes 64 and 65 are connected to the outer pipe 20 and the extended outer pipes 64 and 65 by connecting portions 66 and 67 as in the second embodiment.

[0063] Furthermore, the first valve 60, the second valve 61, and the third valve 63 are each provided with water stop means. The water stop means is preferably a water tap, for example. When liquid is pumped by the pump, one of the valves is opened and the other valve is stopped. After setting in this state, when the handle 33 is reciprocated up and down and the reciprocating rod 30 is reciprocated, the liquid is sucked up, sucked up from the inlet 23, raised, and discharged from the opened valve. Can do. In this way, by selecting and opening any one of the first valve 60, the second valve 61, and the third valve 63, the water can be pumped to an arbitrary height even when the pump is fixed. For example, it can be used at each building level. The three valves may be arranged in one outer tube or an extended outer tube.

[0064] The pumping pump according to the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the present invention. For example, the discharge valve provided in the piston may be changed to a ball made of a material such as glass or metal in addition to the tongue-shaped valve. Of course, the length and outer diameter of the outer pipe, the extended outer pipe, the reciprocating bar, and the extended reciprocating bar of the pump are variously changed.

Industrial applicability

[0065] The present invention is applied to a pump for pumping water such as wells, rivers, and ponds, or liquids such as oil and chemicals.

Claims

The scope of the claims

[1] A hollow outer tube having a suction port and a discharge port, a reciprocating rod that is reciprocally passed through the outer tube,

The suction, the suction provided near the inlet, the inlet valve,

A discharge valve provided at the top of the piston having a suction hole provided at the lower end of the reciprocating rod,

The cross-sectional area of the reciprocating rod is made smaller than the internal cross-sectional area of the outer tube to form a gap for water passage between the inner surface of the outer tube and the outer surface of the reciprocating rod, and liquid is passed through the gap. A pump having a structure to be

When the inner diameter of the outer tube is D and the outer diameter of the reciprocating rod is d,

Pumping pump characterized by 0. 95D≥d≥0. 3D.

[2] The pump according to claim 1, wherein the reciprocating rod reciprocates the inside of the outer tube within a range of 0.1 to: 1. Om.

[3] The pump according to claim 1 or 2, wherein the reciprocating rod has a cycle of reciprocating inside the outer tube of 0.3 to 5 cycles / second.

[4] The pump according to claim 1, wherein the specific gravity of the reciprocating rod in the liquid is 0.9 to 0.3.

[5] A hollow structure outer tube having a suction port and a discharge port, and a hollow structure reciprocating rod that is reciprocally passed through the outer tube, between the inner surface of the outer tube and the outer surface of the reciprocating rod. A pump having a structure for passing water through

The outer pipe is provided with connecting portions on the suction port side and the discharge port side, respectively, and at least one extended outer tube is connected between the connecting portions,

The reciprocating bar is provided with a connecting portion on each of the suction port side and the discharge port side, and at least one extended reciprocating rod is connected between the connecting portions,

The extension outer tube and the extension reciprocating rod are arranged such that a piston having a suction hole and a lower end portion of the reciprocating rod provided with a discharge valve at an upper portion thereof are arranged on the suction port side of the outer tube. The pump according to claim 1, 2, 3 or 4, wherein the length is set.

[6] The reciprocating rod having a hollow structure closes the upper end portion, closes the connecting portion with respect to the gap for water flow, and causes buoyancy to the reciprocating rod by the liquid in the gap for water flow. 6. The pump according to claim 5, which is added.

[7] A plurality of outlets are provided at arbitrary locations on the outer pipe and the extended outer pipe, and water discharge means are provided in each of the outlets, and the liquid is obtained by the reciprocating motion of the reciprocating bar and the extended reciprocating bar. 8. The pump according to claim 5 or 7, wherein when the water is pumped up, one of the water stop means is opened to discharge the liquid.